JP6690191B2 - Communication system, communication device, control method thereof, and program - Google Patents

Description

  The present invention relates to a communication system, a communication device, a control method thereof, and a program, and more particularly, to a communication system, a communication device, a control method thereof, and a program for communicating with an M2M / IoT (Machine to Machine / Internet of Things) device.

  Patent Document 1 describes an example of a system in which a machine type communication (MTC) device is equipped with an LTE (Long Term Evolution) communication module and accesses a base station of an LTE network to transmit data to a server. ing. In the system of Patent Document 1, when an MTC device tries to access a mobile communication network and tries to access a radio resource control (RRC), an extended access barring (EAB) or an access is performed. Execute regulation judgment (ACB: Access Class Baring).

  The data management system described in Patent Document 2 introduces a border router (gateway device) between a sensor and a server, and the sensor sets an address generated based on its own MAC (Media Access Control) address and then the sensor. Send data information to the border router. The border router relays the sensor information to the sensor data management server and collects the data. As a result, the server side detects the sensor address and performs Pull-type data collection addressed to the sensor address. With this configuration, it is not necessary to register the server address information in the sensor in advance.

  In the base station control device described in Patent Document 3, the base station is applied to a network including a plurality of CSG (Closed Subscriber Group) cells, and the CSG identification information of the CSG cells permitted to be accessed by the mobile terminal is stored. The CSG-ID list and the PCI (Physical Cell ID) corresponding to the CSG cell identification information are stored, the PCI of an adjacent CSG cell within a predetermined range of the CSG cell in which the mobile terminal exists is read, and the mobile terminal accesses. By creating an available PCI list and notifying the mobile terminal of the accessible PCI list, the mobile terminal is connected to the CSG cell to which access is permitted.

  The wireless terminal device described in Patent Document 4 is capable of communicating with a station device, and a determination unit for determining whether or not the wireless base station device is a specific wireless base station device, and a specific wireless device by the determination unit. And a communication control unit for selectively establishing a communication connection with the wireless base station device determined to be the base station device. With this configuration, even when a large number of wireless terminal devices exist in a specific area, the load on the wireless base station device forming the area is reduced.

In Patent Document 5, various services are provided in accordance with an event collected in a server node via a sensor network that collects sensing data sensed by the sensor as an event, such as issuing an alert or controlling a device. In the system for performing the above, there is described a method capable of suppressing the network traffic even when the topology of the sensor network is changed.
Patent Document 6 describes a system for allocating and allocating resources within an autonomic sensor network ecosystem to deal with various threats within the ecosystem.

Japanese Patent Publication No. 2014-522163 JP, 2014-078773, A International Publication No. 2010/143428 JP, 2014-17801, A JP, 2013-47922, A Japanese Patent Publication No. 2009-507441

  As a feature of the M2M / IoT system, most of the traffic during normal times is traffic based on a plan, which transmits measurement data or the like having a predetermined content at a predetermined time, and therefore has almost no call loss rate. However, in the event of an emergency such as an earthquake disaster, various devices repeatedly send alerts all at once, so upstream traffic is concentrated and the call loss rate is likely to increase.

  In the technique described in the above-mentioned document, in such a state, the M2M / IoT device instructs the network side not to transmit the upstream traffic without permission, and then polls based on the priority order from the network side. Data can be downloaded by. However, in the technique described in the above document, when the state of the device is unknown on the network side, there is a concern that wireless resources will be further wasted while network resources are tight, such as trying to connect to a sleeping device. However, there is a problem that communication congestion may occur.

  An object of the present invention is to provide a communication system, a communication device, a control method thereof, and a program that solve the above-mentioned problems.

  In each aspect of the present invention, the following configurations are adopted to solve the above-mentioned problems.

The first aspect relates to a communication device.
The communication device according to the first aspect,
Receiving means for receiving a communication request from the device,
Transfer means for transferring information received from the device to a network based on the communication request received by the receiving means,
When a predetermined event occurs, based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, and the communication control of the device is performed according to the determination result. And a control means for
The attribute information is viewed contains the following items (a) or (b),
(A) Information indicating at least one of the degree of public interest and importance of the device (b) Information of at least one of the contractor or owner of the device, contract plan, usage, location information, and data attribute
The control means is
When the communication load of the network with the device is high, a part of the communication request counts the communication request from the permitted device, and the communication request when the count reaches a predetermined value or more. Allow,
The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. Stop.

The second aspect relates to a method for controlling a communication device executed by at least one computer.
The control method of the communication device according to the second aspect,
The communication device
Receives a communication request from the device,
Transfer information received from the device to a network based on the received communication request,
When a predetermined event occurs, based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, and the communication of the device is controlled according to the determination result. Including,
The attribute information is viewed contains the following items (a) or (b),
(A) Information indicating at least one of the degree of public interest and importance of the device (b) Information of at least one of the contractor or owner of the device, contract plan, usage, location information, and data attribute
Further, the communication device is
When the communication load of the network with the device is high, a part of the communication request counts the communication request from the permitted device, and the communication request when the count reaches a predetermined value or more. Allow,
The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. Including stopping.

As another aspect of the present invention, it may be a program that causes at least one computer to execute the method of the second aspect, or a computer-readable recording medium that records such a program. May be. The recording medium includes a non-transitory tangible medium.
The computer program includes a computer program code that, when executed by a computer, causes the computer to perform the control method on the communication device.

  It should be noted that any combination of the above constituent elements and one obtained by converting the expression of the present invention among methods, devices, systems, recording media, computer programs, etc. are also effective as an aspect of the present invention.

  Further, the various constituent elements of the present invention do not necessarily have to be independently present, and a plurality of constituent elements are formed as one member, and one constituent element is formed by a plurality of members. That a certain component is a part of another component, a part of a certain component and a part of another component overlap, and the like.

  Moreover, although a plurality of procedures are described in order in the method and the computer program of the present invention, the order of description does not limit the order in which the plurality of procedures are executed. Therefore, when the method and computer program of the present invention are implemented, the order of the plurality of procedures can be changed within a range that does not hinder the contents.

  Furthermore, the plurality of procedures of the method and computer program of the present invention are not limited to being executed at different timings. Therefore, another procedure may occur during the execution of a certain procedure, the execution timing of a certain procedure and the execution timing of another procedure may partially or entirely overlap, and the like.

  According to each of the above aspects, it is possible to provide a communication system, a communication device, a control method thereof, and a program that avoid communication congestion when a predetermined event occurs.

It is a functional block diagram which shows logically the structure of the communication apparatus which concerns on embodiment of this invention. It is a figure which shows notionally the system configuration of the communication system which concerns on embodiment of this invention. It is a figure which shows the example of the information regarding the device of the communication system which concerns on embodiment of this invention. It is a figure which shows the example of the information regarding the device of the communication system which concerns on embodiment of this invention. It is a block diagram which shows the structural example of the computer which implement | achieves the communication apparatus which concerns on embodiment of this invention. 5 is a flowchart showing an example of operation of the communication device according to the exemplary embodiment of the present invention. 7 is a flowchart showing an example of a detailed procedure of a communication request reception process of the communication device according to the exemplary embodiment of the present invention. 5 is a flowchart showing an example of a detailed procedure of transfer control processing of the communication device according to the exemplary embodiment of the present invention. It is a functional block diagram which shows the logical structure of the management apparatus which concerns on embodiment of this invention. It is a figure which shows notionally the system configuration of the communication system which concerns on embodiment of this invention. It is a figure which shows an example of the priority control information storage part of the management apparatus which concerns on embodiment of this invention. It is an example of a priority control table generated by the management device according to the embodiment of the present invention. It is a figure for demonstrating the change method by the elapsed time of the priority control content of the communication system which concerns on embodiment of this invention. It is a figure for demonstrating the grouping of the device of the communication system which concerns on embodiment of this invention. It is a flow chart which shows an example of operation of the controlling device concerning an embodiment of the invention. It is a figure which shows notionally the system configuration of the communication system of the Example of this invention. It is a functional block diagram which shows the logical structure of the shared gateway and the device of the communication system of the Example of this invention. It is a figure which shows the example of the priority control table of the communication system of the Example of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same constituents will be referred to with the same numerals, and the description thereof will not be repeated.

(First embodiment)
A communication system, a communication device, a control method thereof, and a program according to the first embodiment of the present invention will be described below.
FIG. 1 is a functional block diagram logically showing the configuration of the communication device 100 according to the embodiment of the present invention.
The communication device 100 according to the present embodiment has a function as a relay device that connects an M2M / IoT (Machine to Machine / Internet of Things) device to a network of the M2M / IoT system. When the device has a wireless communication function as in the present embodiment, the communication device 100 functions as an access point for a plurality of devices 10 connected to the private wireless network 3 and a line terminal connected to the carrier network 5. It may be a gateway device having a function as a device.

In each drawing of the present specification, the configuration of the portion not related to the essence of the present invention is omitted and is not shown.
Note that the communication system 1 according to the embodiment of the present invention is not limited to wireless communication, and at least one of priority control of various line terminal devices in a fixed data communication network and priority control in small radio base stations such as femtocells. It can also be applied to The network relayed by the communication device 100 may be a combination of a wireless communication network and a fixed data communication network.

  The M2M / IoT system may be various systems, and is not particularly limited, but includes, for example, a telecommunications carrier, a person who operates a business using wireless communication, a base station for wireless communication, an access point, and a gateway. Includes systems associated with at least one of the owners. For example, it includes a system of a mobile communication network of a carrier of a mobile phone, a system of a public office, a public enterprise or a private enterprise, for example, a system of a power company which collects measurement data of devices such as smart meters.

  A communication apparatus 100 according to an embodiment of the present invention includes a receiving unit 102 that receives a communication request from a device, and a transfer unit that transfers information received from the device to a network based on the communication request received by the receiving unit 102. 104, and when a predetermined event occurs, it is determined whether all communication requests or some of a plurality of communication requests are permitted based on the attribute information of the device, and the communication of the device 10 is controlled according to the determination result. And a control unit 106 for controlling the operation.

FIG. 2 is a diagram conceptually showing the system configuration of the communication system 1 according to the embodiment of the present invention.
In the communication system 1, the communication device 100 is connected to at least one device 10 via a network 3 such as a private network (hereinafter also referred to as a private network 3). Further, the communication device 100 is connected to the server 120 via a network 5 such as a carrier network (hereinafter also referred to as the carrier network 5).
The self-employed wireless network 3 is a network that is established and used by a specific company, organization, government office, etc. independently or jointly. The carrier network 5 is a network provided by a telecommunications carrier or the like.

  The communication device 100 functions as a so-called gateway that relays communication by the plurality of devices 10 on the private wireless network 3 to the server 120 on the carrier network 5. Specifically, the communication apparatus 100 receives a communication request from each device 10 via the self-employed wireless network 3, and transfers the device 10 to the carrier network 5 via the base station 7 based on the received communication request. Connect to the server 120.

  The server 120 is an information processing apparatus that realizes a system or service that receives information from each device 10 and manages or controls it. The server 120 is not particularly limited and includes various forms. Good. The server 120 also includes a server of a carrier of the carrier network 5. The server 120 may be a blade server such as a data center, and may be a virtual server as well as a physical server. The information received by the server 120 from the device 10, its management and control contents, and service contents are not particularly limited, and can be applied to various forms as described later.

Although only one server 120 is shown in FIG. 2, the number of servers 120 is not limited to this, and the communication device 100 of the embodiment of the present invention can be applied to a plurality of servers 120 of various systems. .
For example, when a plurality of servers 120 of various systems communicate with a plurality of corresponding devices 10 via the self-employed wireless network 3 and carrier network 5, the communication device 100 according to the embodiment of the present invention uses the communication devices 100 of these systems. Communication may be controlled by relaying between the self-employed wireless network 3 and the carrier network 5. Further, there may be a plurality of servers 120 that are destinations of information from each device 10, or a plurality of devices 10 connected to the same communication device 100 may communicate with a plurality of different servers 120 as destinations. Good.

  In FIG. 2, four devices Ta, Tb, Tc, and Td are shown, but the number of devices 10 is not limited to this. Further, the communication device 100 may not be connected to all the devices 10 by the private wireless network 3, and may be connected to the devices 10 by wire.

  Although only one communication device 100 is shown in the self-employed wireless network 3 in FIG. 2, the number of communication devices 100 is not limited to this and may be plural. In addition, a plurality of self-employed wireless networks 3 may exist for each of a plurality of different systems or services, or at least two systems or services may share at least one self-employed wireless network 3. In addition, the plurality of communication devices 100 are hierarchically configured, the upper communication device 100 transmits the control content to the lower communication device 100, and the lower communication device 100 is connected to the communication device 100. May be controlled.

  In the present invention, the device 10 is, for example, an M2M / IoT device, and includes various terminals, devices, sensors, and the like. The device 10 is, for example, but not limited to, surveillance cameras for public facilities such as schools and rivers, public vehicles such as police and fire fighting, road information equipment, surveillance cameras of private companies, vehicles of private companies, empty cars in parking lots. Display device, vending machine, farmland sensor, medical device, OA (Office Automation) device, advertisement display device, measuring device such as smart meter, remote camera for personal use, mobile terminal (mobile phone, smartphone, tablet terminal), game Machines, television sets, audio equipment, etc.

The attribute information of each device 10 includes various information about the device 10 and also includes information indicating at least one of the degree of public interest and importance of the device 10.
Examples of various information about the device 10 include information such as a contractor or an owner of the device 10, a contract plan, an application, location information, and data attributes (type and time of output data, etc.).
3 and 4 show examples of attribute values for each of contractor information, contract plan information, usage information, and data attribute information, as various information. For ease of understanding, the attribute values are shown as character strings in each figure, but the attribute values on the program code may be shown as character strings or numerical values. In each figure, attribute values are shown in descending order of public interest and importance.

  The attribute information of each device 10 is indicated by at least one attribute value of each information (contractor, contract plan, usage, position information, data attribute) or a set of attribute values. The attribute information of each device 10 may be stored in the memory 64 or the storage 66 of the communication device 100 to which the device 10 is connected, and may be accessed by the management device or the communication device 100, as described in the embodiments below. It may be stored in a possible storage device. The management device is a device that manages the device 10 and the communication device 100, and will be described in an embodiment described later.

  As shown in FIG. 3A, the contractor of the device 10 may be, for example, a cabinet secretariat or defense, a central government office, a local government, a medical relationship, a private security relationship, a private enterprise or a group having a high public interest (“I in the figure”). Companies and organizations (public interest) ", general private companies or organizations, and individuals (shown as" private companies and organizations (general) "in the figure).

  FIG. 3B shows an example of a plan that can be contracted with respect to usage restrictions on, for example, a device 10 or system using a carrier network or a device 10 or system using this system. The contract is made by a user who manages the device 10 or the system. In the present embodiment, the contract plan of the device 10 includes, for example, a public special plan, a premium plan, and a best effort plan.

  The public special plan is a plan applied to a system with high public interest and importance, and can be used with priority without limitation even when a predetermined event occurs. Applicable systems include, for example, indispensable systems at the time of disasters such as public facilities and river coast monitoring, emergency vehicles such as police and fire fighting, deployment of relief supplies, medical institutions, public transportation such as buses and trains, It includes systems of private companies with public interest such as information management of roads and traffic such as highways and general roads, vending machine management, etc.

  Even if a premium plan is a system for private use of a private company that is not public or important, it can be used preferentially when a predetermined event occurs by paying the consideration. Examples of applicable systems include a surveillance camera system of a private company, a store terminal system, and a parking lot system.

  The Best Effort Plan is a plan that applies to a system intended for private use by individual users or private companies, and it is a plan that can be used with a reasonable charge and with a limited occurrence when a certain event occurs. . Examples of applicable systems include, for example, surveillance cameras for pets of museums and individual users, farmland sensors, OA equipment, and the like.

As shown in FIG. 4A, the application of the device 10 is, for example, defense or disaster prevention monitoring, crime prevention monitoring, name rescue, position information (general), various measurements (general), various management (general), and others (general). ) Etc. General refers to a system used by private companies or individual users.
As shown in FIG. 4B, the attributes of the data output by the device 10 are classified into, for example, alert information to be monitored, measurement data, an image, a video, a sound, and the like.

  If the device 10 is a fixed device, the position information (not shown) of the device 10 is registered in advance in the communication device 100, the management device, the server 120, or the like or at the time of the first communication. In the case where the device 10 is a mobile terminal, the communication device 100 and the management device obtain the location information and the GPS (Global Positioning System) information indicating the area in which the device 10 exists from the device 10 periodically or at any time. Alternatively, it is registered in the server 120 or the like. The position information may be transmitted from the device 10 to the communication device 100, the management device or the server 120, or may be acquired by requesting the device 10 from the communication device 100, the management device, the server 120, or the like. Alternatively, when the device 10 is a mobile terminal, the communication device 100, the management device, the server 120, or the like may acquire the information of each device 10 whose position is regularly registered in the base station 7 from the base station 7.

  The attribute value of the position information of each device 10 is an area where a predetermined event occurs, for example, the distance and range from the epicenter of a large earthquake (within 10 km, 10 to 20 km, 20 km, etc.), extent of damage It may be indicated by the information of the range divided by (on-floor flooding, under-floor flooding, etc.), or may be the position information itself.

Returning to FIG. 1, the communication request received by the receiving unit 102 includes the information transmitted from the device 10 and the destination information of the transfer destination (for example, the server 120) transferred from the communication device 100 which is the original destination of the information. At least include. The information transmitted from the device 10 is, for example, monitoring alert information detected or acquired by the device 10, measurement data measured or acquired by the device 10, image or video data captured or acquired by the device 10, and device 10 Recorded or acquired voice data is exemplified, but the data is not limited thereto and may include other information other than these. Also, a form in which a plurality of data and information are combined may be used.
The destination information includes, for example, the destination such as the IP (Internet Protocol) address of the server 120. Further, the communication request may include information on the device 10 that is the transmission source, for example, identification information of the device 10, a terminal type number, an IP address, a MAC (Media Access Control) address, position information, and the like.

The transfer unit 104 transfers the information received from the device 10 to the destination included in the communication request to the server 120 on the carrier network 5 via the base station 7. Further, when the amount of information received from the device 10 is large, the information may be divided and received and sequentially transferred. For example, a general method can be used for these communication procedures, and there is no particular limitation.
In the present embodiment, a configuration in which a communication request is voluntarily transmitted from the device 10 will be described as an example, but the present invention is not limited to this. For example, a configuration in which the carrier network 5 side or the communication device 100 requests the device 10 to receive information from the device 10 is not excluded from the present invention.

  In the present invention, the predetermined event occurrence is, for example, occurrence of a natural disaster such as a large earthquake, a tsunami, a flood, a landslide, a drought, a volcanic eruption, a fire, an accident, an incident, a terrorism, a failure, an unexpected situation such as an obstacle. Means Alternatively, it includes the occurrence of predictable events such as communication failures, traffic congestion, congestion, and confusion caused by events such as the year-end and New Year holidays, Christmas, fireworks festivals, and sports competitions.

There are various possible methods for the communication device 100 to know whether or not a predetermined event has occurred, and examples are given below, but the method is not limited to these. Moreover, you may combine the following plurality.
(A1) The occurrence of each predetermined event is automatically determined based on various sensor information of various devices 10.
(A2) Each event occurrence information is received from each predetermined information provider and automatically determined.
(A3) The administrator manually sets that a predetermined event has occurred.
(A4) Receive a notification from the carrier network 5 side.

  Whether the control unit 106 permits all of the communication requests received from the device 10 or allows some of the plurality of communication requests received from the device 10 based on the attribute information of the device 10 that has received the communication request. And the communication of the device 10 is controlled according to the determination result.

  Controlling the communication of the device 10 includes receiving a communication request from the device 10 and transferring the information received from the device 10 to the carrier network 5.

The control unit 106 determines the communication request from each device 10 based on the priority control content, which is determined based on the attribute information of the device 10, for example, the setting of full permission, partial permission, or non-permission of the communication request. Control the correspondence of. Hereinafter, this setting is also referred to as “communication request corresponding setting”.
A method of determining the priority control content will be described in detail in the embodiment described later.

  In the case of all permission, all communication requests from the device 10 are accepted without limitation, each time. In the case of partial permission, as will be described later, a part of a plurality of communication requests from the device 10 is accepted. For example, it may be accepted once every three times or once every ten times. In the case of non-permission, all communication requests from the device 10 are not accepted.

  For example, for the device 10 having attribute information indicating that the public interest and importance are relatively high, all the communication request corresponding settings are permitted, and the device 10 having attribute information indicating that the public interest and importance are relatively low. With respect to, the communication request handling setting is partially permitted, and the communication request handling setting is not permitted for the device 10 having the attribute information indicating that it is not of public interest and importance.

  The communication request correspondence setting based on the attribute information of each device 10 may be preset according to a predetermined standard and updated under a predetermined condition. The setting may be performed by the communication device 100, a management device described in an embodiment described later, or a combination of the communication device 100 and the management device. The setting may be set for each device 10, may be set for each communication device 100, may be set for each application, service, or system, or may be set according to the area in which the device 10 or the communication device 100 is located. Further, as described later, the setting may be changed according to the elapsed time after the occurrence of the event.

  In the present embodiment, the setting standard and the setting method of the communication request correspondence setting and the immediate transfer setting based on the attribute information of the device 10 are not limited. It may be set by any standard and method.

Further, when a predetermined event occurs, the control unit 106 causes the transfer unit 104 to immediately transfer the information received from the device 10 in response to the communication request received from the device 10 based on the attribute information of the device 10. Alternatively, it is determined whether the information received by the plurality of communication requests received from the device 10 is temporarily accumulated, and whether the information accumulated a plurality of times is collectively transferred, and the transfer of the information is controlled according to the judgment result.
The control unit 106 performs the above transfer control based on the setting of whether or not to immediately transfer the communication request to the carrier network 5, which is determined based on the attribute information of the device 10. Hereinafter, this setting is also referred to as “immediate transfer setting”.
Immediate transfer implementation is a setting that requires immediate transfer of information received from the device 10. Immediate transfer non-execution is a setting that temporarily suspends transfer of information received from the device 10 and permits transfer of a plurality of information at once.

  When the immediate transfer is not set, the accumulated information is transferred based on at least one of the time for stopping the transfer, the number of communication requests for stopping the transfer, and the capacity for accumulating the transfer information. Whether to transfer based on time, number of times, or capacity may be set in advance for each communication device 100 or device 10, or may be specified at any time from the server 120. It may be set in consideration of the memory capacity and processing capacity (CPU usage rate, etc.) of the communication device 100 or the device 10, the communication capacity of the private wireless network 3 or the carrier network 5, the network usage rate, etc.

  The communication request correspondence setting and the immediate transfer setting, which are determined based on the attribute information of the device 10, may be set by the communication apparatus 100, or are set by the management apparatus, as will be described in detail in an embodiment described later. The communication device 100 may refer to the setting and control each device 10 according to the setting.

  By reducing the number of times the data transmitted from the device is transferred to the server 120, the number of connections to the carrier network 5 is reduced, the communication load is reduced, and even if the transfer is temporarily limited, You can transfer with.

When the communication load of the self-employed wireless network 3 is high for the partially permitted device 10, the control unit 106 further performs the following processing.
(B1) Communication request thinning (b2) Communication request minimum interval setting (b3) Device sleep instruction

Here, the case where the communication load of the self-employed wireless network 3 is high is a case where the channel of the communication band of the self-employed wireless network 3 is tight, and is exemplified below, but is not limited thereto. It may also include a case where any one of the following situations is detected, or a case where the communication load is predicted to increase from the past history.
(C1) Frequent retries from the device 10 (for example, retries occur a predetermined number of times or more within a fixed time)
(C2) Response waiting time from device 10 (no response time) is longer than a predetermined value (c3) Communication error detection occurs frequently

In the thinning-out process (b1), the control unit 106 allows a part of the communication request from the device 10 to be permitted when the communication load on the network (the private wireless network 3) with the device 10 is high. Is counted, and the communication request is permitted when the count reaches or exceeds a predetermined value.
The predetermined value may be changed depending on the situation. For example, immediately after the occurrence of an event, the number of thinning-outs is increased (for example, it is received once every 10 times), and according to the elapsed time after the occurrence of an event, the number of thinning-outs is reduced (for example, it is received once every 5 times), and finally Alternatively, it may be configured to approach the normal time (receive each time).

  Further, the predetermined value may be different for each device 10 or each group. For example, the device 10 having a high priority may be set to a predetermined value smaller than the device 10 having a low priority, and the number of times of thinning may be reduced. Here, the priority is a priority determined according to the attribute of the device 10 and the priority is given to the communication. For example, the priority of the device 10 having a high public interest or importance is raised, and the priority communication is performed. Can be allowed. The priority order will be specifically described in an example described later.

  Note that the count may be set to a predetermined value, a negative count may be performed in response to the communication request, and the communication request may be permitted when the count becomes 0 or less. The count does not necessarily have to be increased or decreased by one, and may be increased or decreased by several counts. The device 10 may change the increment / decrement number of 1 count, and the device 10 may adjust the thinning interval of the communication request.

  Specifically, the control unit 106 performs control such as allowing a communication request, for example, every predetermined number of times, for example, once every five times. The number of times the communication request is thinned may be dynamically set according to the attribute of the device 10, the predetermined event occurrence status, the elapsed time from the occurrence, etc., as described later.

  In the process of (b2), the count interval of the communication request when the thinning corresponding to the communication request is thinned in the process of (b1) is controlled. The control unit 106 sets the count interval of the communication request from the device 10 to which a part of the communication request is permitted to be a predetermined time or more, and after receiving the communication request from the device 10, until the predetermined time elapses, Pause counting.

  For example, if the thinning process corresponding to the communication request is simply performed only with the number of communication requests, if the cycle in which the device 10 transmits the communication request is shortened, the time to reach the predetermined number of times may be shortened. For example, if the communication request is accepted only once in 10 times with partial permission, if the device 10 transmits the communication request at a frequency 10 times as high as the normal frequency, the communication request can be accepted at the normal 1-time interval. become.

  Therefore, in the present embodiment, when counting the communication requests from the device 10, as described above, the communication request (retransmission request) transmitted within a predetermined time after receiving the communication request is not accepted and is not counted. To do. The time during which the communication request is not accepted is called the minimum interval corresponding to the communication request. In this embodiment, the minimum interval corresponding to the communication request can be set, and after the communication request is received from the device 10, the count is temporarily stopped until the minimum interval time elapses. As a result, even if the communication request cycle is changed to 1/10 on the device 10 side and communication requests are transmitted 10 times as often as usual, the communication requests are handled at the minimum interval, so communication is performed at the normal interval. Can count requests.

In the process of (b3) above, when a part of the communication request of the device 10 is permitted, the control unit 106 instructs the device 10 to sleep for a certain period of time. The sleep instruction may be broadcast to the private wireless network 3, for example.
Upon receiving the sleep instruction, the device 10 does not send a communication request to the private wireless network 3 for a certain period of time. The time at which the device 10 that has received the sleep instruction stops calling may be specified by the sleep instruction from the communication device 100, or may be predetermined on the device 10 side.

Moreover, the power consumption of the device 10 can be reduced by issuing the sleep instruction. Further, according to the response of the device 10 to the sleep instruction, the communication apparatus 100 can know whether the device 10 can understand the instruction. That is, it is possible to determine that the device 10 that has made the communication request within the predetermined time after issuing the sleep instruction for the predetermined time is the device 10 that cannot understand the sleep instruction.
By combining the processing of (b2) and the processing of (b3), even a device 10 that cannot understand the sleep instruction can thin out communication requests. This makes it possible to reliably and temporarily stop the communication request via the self-employed wireless network 3 for the device 10 having a low public interest.

FIG. 5 is a block diagram showing a configuration example of a computer 60 that realizes the communication device 100.
The computer 60 includes a CPU (Central Processing Unit) 62, a memory 64, a program 80 that implements the components of FIG. 1 loaded in the memory 64, a storage 66 such as a hard disk that stores the program 80, a network connection interface (I / O (Input / Output) 68). The memory 64, the storage 66, and the I / O 68 are connected to each other via a bus 69, and the CPU 62 controls the entire communication device 100 together with each element of FIG.

  Each component of the communication device 100 of the present embodiment of FIG. 1 is realized by an arbitrary combination of hardware and software of the computer 60 of FIG. It will be understood by those skilled in the art that there are various modified examples of the realizing method and the apparatus. The functional block diagram showing the device of each embodiment to be described below shows a block of a logical functional unit, not a configuration of a hardware unit.

  The CPU 62 of the computer 60 in FIG. 5 reads the program 80 stored in the storage 66 into the memory 64 and executes the program 80, whereby each function of each unit in FIG. 1 of the communication device 100 can be realized.

  The computer program of the present embodiment transfers the information received from the device 10 to the network 60 based on the procedure of receiving the communication request from the device 10 and the received communication request to the computer 60 for realizing the communication device 100. When a procedure or a predetermined event occurs, it is determined whether all communication requests are permitted or a part of a plurality of communication requests is permitted based on the attribute information of the device 10, and the communication of the device 10 is controlled according to the determination result. It is written so as to execute the procedure.

  The computer program of the present embodiment may be recorded in a recording medium readable by the computer 60. The recording medium is not particularly limited, and various forms are conceivable. The program may be loaded from the recording medium into the memory 64 of the computer 60, or may be downloaded to the computer 60 via a network and loaded into the memory 64.

  The recording medium for recording the computer program 80 includes a medium which can be used by the non-transitory tangible computer 60, and the program code readable by the computer 60 is embedded in the medium. When the computer program 80 is executed on the computer 60, it causes the computer 60 to execute the following control method for realizing the communication device 100.

A control method of the communication device 100 of the present embodiment configured as above will be described below.
FIG. 6 is a flowchart showing an example of the operation of the communication device 100 of this embodiment.
The control method according to the embodiment of the present invention is a control method of the communication device 100, and is a control method executed by the computer 60 that realizes the communication device 100.
In the control method of the present embodiment, the communication device 100 receives a communication request from the device 10 (step S101) and transfers the information received from the device 10 to the network (carrier network 5) based on the received communication request. (Step S107), when a predetermined event occurs (YES in step S103), all communication requests are permitted based on the attribute information of the device 10 (YES in step S105), or some communication requests are permitted. Whether or not (NO in step S105) is determined, and communication of the device 10 is controlled according to the determination result (steps S107 and S109).

  Specifically, in the communication device 100, the receiving unit 102 receives a communication request from the device 10 via the private wireless network 3 (step S101). When the predetermined event has not occurred (NO in step S103), the transfer unit 104 sends the information received from the device 10 based on the received communication request to the destination (server 120) included in the communication request. To the network via the network (carrier network 5) (step S107). Then, this process ends.

  On the other hand, when a predetermined event occurs, for example, when the occurrence of a large earthquake is automatically detected or when the administrator manually sets the event occurrence (YES in step S103), the control unit 106 causes the device 10 to operate. Based on the attribute information of (1), for example, it is determined whether the public interest and the importance are high or low, whether all or some are permitted (step S105). In the case of the device 10 determined to be all permitted (YES in step S105), the transfer unit 104 sets the information received from the device 10 to the destination (server 120) included in the communication request based on the received communication request. The data is transferred via the network (carrier network 5) (step S107). In the case of the device 10 determined to be partially permitted (NO in step S105), based on the received communication request, a part of the plurality of communication requests received from the device 10 is permitted, and the destination included in the communication request is permitted. The data is transferred to the (server 120) via the network (carrier network 5) (step S109).

  In the present embodiment, the communication request correspondence setting (setting to allow all, some allow, or not allow all communication requests) and the immediate transfer setting (immediate transfer The communication process for the communication request from each device 10 is controlled based on the setting (either implementation or non-implementation). An example of a detailed procedure for processing the procedure shown in FIG. 6 based on these settings will be described below.

  FIG. 7 is a flowchart showing an example of a detailed procedure of a communication request acceptance process of the communication device 100 according to the embodiment of the present invention. FIG. 8 is a flowchart showing an example of a detailed procedure of transfer control processing of the communication device 100 according to the embodiment of the present invention. Hereinafter, the control method of the communication device 100 of the present invention will be described in detail with reference to FIGS. 7 and 8.

<Communication request acceptance processing>
First, the detailed procedure of the communication request reception process of the communication device 100 will be described with reference to FIG. 7.
This process is executed when it is determined in step S103 in FIG. 6 that a predetermined event has occurred.
The control unit 106 determines, based on the attribute information of each device 10, whether all communication requests from the device 10 are permitted, for example, based on whether the public interest and importance are relatively high. (Step S121). The result determined by the control unit 106 may be stored in the memory 64 or the storage 66 for each device 10. When the determination result is stored, the determination result may be referred to without performing the determination in the subsequent processing cycles.

  When all devices are permitted (YES in step S121), the control unit 106 accepts the communication request of the device 10 (step S131), and ends the present process. Since the counter is not used here, it does not have to be reset.

  In the case of all devices that are not permitted (NO in step S121), the control unit 106 further determines the device 10 based on the attribute information of the device 10, for example, whether the public interest and the importance are relatively low. It is determined whether the communication request from the device is partially permitted (step S123). The result determined by the control unit 106 may be stored in the memory 64 or the storage 66 for each device 10. When the determination result is stored, the determination result may be referred to without performing the determination in the subsequent processing cycles.

  If the device is partially permitted (YES in step S123), the control unit 106 further determines whether the communication load of the private wireless network 3 is high (step S125). When the communication load is high (YES in step S125), the control unit 106 counts the communication requests of the devices determined to be partially permitted in step S123 (step S127). Here, the communication request counter is incremented. The value of the counter may be stored in the memory 64 or the storage 66 for each device 10. Further, at this time, the control unit 106 issues a sleep instruction to the private wireless network 3.

Then, the control unit 106 determines whether the counter is greater than or equal to a predetermined value (step S129). When the counter is equal to or larger than the predetermined value (YES in step S129), the control unit 106 accepts the communication request, resets the counter (step S131), and ends this processing.
If the device is not partially permitted (NO in step S123), this process ends.

Further, when the communication load is not high (NO in step S125), the control unit 106 accepts the communication request of the device 10 determined to be partially permitted in step S123 (step S131), and ends the process. Since the counter is not used here, it does not have to be reset.
When the count is less than the predetermined value (NO in step S129), the process is terminated without bypassing step S131 and accepting the communication request.

  This process can be performed for each device 10. Further, it is assumed that the process is repeatedly executed in a predetermined cycle while a predetermined event occurs. At this time, the minimum interval corresponding to the communication request described above is set, and after the communication request is received from the device 10, that is, after this processing is completed, wait until the minimum interval time elapses, and then execute the next cycle. You may.

According to the procedure of FIG. 7, for example, in the case of the device 10 that is relatively high in public interest and importance and is allowed to handle all communication requests, the communication request received by the receiving unit 102 is directly accepted (step S131). For example, in the case of the device 10 that has relatively low public interest and importance and is partially permitted to handle communication requests, the communication request received by the receiving unit 102 is counted (step S127). Then, when the value becomes equal to or larger than the predetermined value (YES in step S129), the communication request is accepted (step S131).
For example, in the case of the device 10 which has neither public interest nor importance and is not permitted to handle communication requests, all communication requests received by the receiving unit 102 cannot be accepted. This communication request may be discarded or may be recorded in the memory 64 or the storage 66 of the communication device 100.

  As described above, according to the communication device 100 of the present embodiment, the communication request correspondence setting (set to any one of the communication request, partially permitted, or not permitted) determined based on the attribute information of the device 10. ), The acceptance of the communication request from the device 10 can be controlled. For example, with respect to the device 10 having a relatively low public interest, when the communication request corresponding setting is partially permitted and the communication load is high, the communication request of the device 10 can be accepted and thinned out every predetermined number of times. Then, for the device 10 having a high public interest, all communication requests can be accepted.

<Transfer control processing>
Next, the detailed procedure of the transfer control process of the communication device 100 will be described with reference to FIG.
This process is executed when it is determined in step S103 in FIG. 6 that a predetermined event has occurred, and after the communication request is received in the communication request reception process in FIG. 7.
The control unit 106 determines, based on the attribute information of each device 10, whether the information from the device 10 is a target of immediate transfer (implementation or non-execution) (step S141). The result determined by the control unit 106 may be stored in the memory 64 or the storage 66 for each device 10. When the determination result is stored, the determination result may be referred to without performing the determination in the subsequent processing cycles.

For example, when the device 10 has relatively high public interest and importance and is a target (implementation) of immediate transfer of information (YES in step S141), the transfer unit 104 causes the information from the device 10 to be a destination server. Immediate transfer to 120 via the carrier network 5 (step S143).
For example, when the public interest and importance are relatively low and the device 10 is not a target for immediate transfer of information (non-execution) (NO in step S141), the information is not transferred immediately, and the transfer unit 104 sets the predetermined number of times. The data is collectively transferred to the destination server 120 via the carrier network 5 (step S145).

  Here, the information to be transferred is stored in the memory 64 or the storage 66 for each device 10 and accumulated, and it is determined whether or not a predetermined number of times of information has been accumulated. For example, the number of times of accumulation is counted using a counter, The configuration may be such that when the number of times exceeds a predetermined number, the transfer is performed. Alternatively, the configuration may be such that the information received from the device 10 is accumulated at a predetermined time interval and a plurality of times are collectively transferred. Alternatively, it may be configured such that it is determined whether or not information of a predetermined amount or more is accumulated, and the information is transferred when the information of a predetermined amount or more is accumulated.

As described above, in the communication device 100 of the present embodiment, the reception unit 102 receives the communication request from the device 10, and the control unit 106 generates the communication request based on the attribute information of the device 10 when a predetermined event occurs. Is permitted or a part of a plurality of communication requests is permitted, and the communication of the device 10 is controlled according to the determination result. Then, the information of the permitted communication request is transferred by the transfer unit 104.
As described above, according to the communication apparatus 100 of the present embodiment, when a predetermined event occurs, permission or partial permission of a communication request can be controlled according to the attribute of the device 10. Therefore, for example, from the device 10 having a high public interest. By permitting all of the information described above and partially permitting the others, it becomes possible to avoid communication congestion and reliably transfer information from the device 10 having a high public interest.

  Further, not only the control of permitting or prohibiting all the communication requests but also the control of permitting a part of the communication requests according to the attribute of the device 10 can be performed. Further, it is possible to finely meet the needs of various users, and it is possible to efficiently and appropriately control the traffic of the entire network without impairing the convenience of each user.

  Further, in the technology described in the above-mentioned prior art documents, it is not assumed that the device cannot understand the instruction from the network side. However, according to the embodiment of the present invention, the device cannot understand the instruction from the network side. Also, by setting the minimum interval corresponding to the communication request, it becomes possible to thin out the communication request at the intended interval.

While it is assumed that 50 billion devices will be connected to the network in the future, in the event of a wide area disaster, congestion will occur if these devices try to repeatedly notify the emergency situation all at once. There is a risk that it will not be possible to collect even such information.
In such an emergency, it is essential to secure the communication necessary to protect the safety of the people, and according to the present invention, a mechanism for objectively determining the importance in consideration of the owner and usage of the data. Will be provided.

(Second embodiment)
Next, a communication system according to the second embodiment of the present invention will be described below.
The communication system of this embodiment is different from the above embodiment in that it includes a management apparatus that creates a priority control table determined according to the attributes of the device, and the communication apparatus refers to the priority control table to communicate with the device. The difference is that it has a configuration for controlling.

In this embodiment, the management device creates the priority control table, so that the management device can centrally manage many devices that access the carrier network 5. Further, in the present embodiment, the management device determines the priority control content according to the attribute of the device and creates the priority control table, and the communication device follows the priority control content of the priority control table and according to the attribute of the subordinate device. A management device and a communication device share functions such as control.
Instead of individually managing a large number of devices by the management device, the devices can be systematically managed and the communication device can control each device, so that a huge number of devices can be efficiently managed and controlled.

In this embodiment, the management device 200 will be described in detail.
FIG. 9 is a functional block diagram showing a logical configuration of the management device 200 according to the embodiment of the present invention. FIG. 10 is a diagram conceptually showing the system configuration of the communication system 1 according to the embodiment of the present invention.
The communication system 1 according to the embodiment of the present invention includes a management device 200 and a communication device 100.

The management apparatus 200 according to the present embodiment includes a determination unit 202 that determines the priority control content of each device 10 based on the attribute information of the device 10 and stores it in the priority control table (priority control information storage unit 230).
In the present embodiment, in the communication device 100, the control unit 106 refers to the priority control table (priority control information storage unit 230) of the management device 200 when a predetermined event occurs, and attribute information of the device 10 that has received the communication request. Based on the priority control content corresponding to, it is determined whether all communication requests are permitted or a part of a plurality of communication requests is permitted, and the communication of the device 10 is controlled according to the determination result.

The management apparatus 200 is connected to a contract information database (shown as “contract information DB (DataBase)” in the figure) 210 and a device information database (shown as “device information DB” in the figure) 220.
The management apparatus 200 may manage communication of the plurality of devices 10 connected to the at least one communication apparatus 100, or may manage at least one communication apparatus 100 to which the plurality of devices 10 are connected and the communication apparatus 100. May be instructed to control the communication of a plurality of devices 10 under the control. In this embodiment, the latter configuration will be described.

  Further, each component of the management device 200 of FIG. 9 is realized by an arbitrary combination of hardware and software of an arbitrary computer (not shown). The computer that realizes the management device 200 includes a CPU, a memory, a program that realizes the components of FIG. 9 loaded in the memory, a storage unit such as a hard disk that stores the program, and a network connection interface. It will be understood by those skilled in the art that there are various modified examples of the realizing method and the apparatus. FIG. 9 shows blocks in functional units, not in hardware units.

  The CPU of the computer that implements the management apparatus 200 reads the program stored in the storage unit into the memory and executes the program, so that each function of each unit in FIG. 9 of the management apparatus 200 can be implemented.

  The computer program of the present embodiment causes a computer for realizing the management apparatus 200 to execute a procedure of determining priority control content of each device 10 based on attribute information of the device 10 and storing the priority control content in the priority control table 204. It is written to let you.

  The computer program of this embodiment may be recorded in a computer-readable recording medium. The recording medium is not particularly limited, and various forms are conceivable. Further, the program may be loaded from the recording medium into the memory of the computer, or may be downloaded to the computer through a network and loaded into the memory.

  A recording medium for recording a computer program includes a non-transitory tangible computer-usable medium, and a computer-readable program code is embedded in the medium. When the computer program is executed on the computer, the computer causes the computer to execute a control method for realizing the management device 200, which will be described later.

  The contract information database 210 stores, for each device 10, contract information classified like the contractor and contract plan described in FIG. 3, for example. Here, the contract information database 210 may manage contract information for all of the individual devices 10, or the contracted device 10 owned by each communication device 100 belongs to which contractor and which contractor. It may be configured to manage whether the contract plan is included. Alternatively, the device 10 may be managed for each predetermined classification, and how to manage the information is not particularly limited.

  The device information database 220 stores, for example, the use and data attribute described in FIG. 4 for each device 10. Also in this case, the device information database 220 may manage uses and data attributes of all the individual devices 10, and the devices 10 that are subordinate to each communication device 100 may be used for any purposes. It may be configured to manage which data attribute is included. Alternatively, the device 10 may be managed for each predetermined classification, and how to manage the information is not particularly limited.

  Further, the management apparatus 200 has the priority control information storage unit (“priority control” in the figure, which stores the control content according to the attribute of the device 10 and the classification of the predetermined event occurrence state surrounding the device 10 described in the above embodiment. (Shown as "information") 230.

FIG. 11 is a diagram showing an example of the priority control information storage unit 230 of the management device 200 of this embodiment.
FIG. 11A shows communication control contents 232 on the side of the private wireless network 3 stored in the priority control information storage unit 230, and shows three control contents (W1, W2) at the time of emergency when a predetermined event occurs. , W3) are included. Although three control contents are included in the drawing, these are merely examples and the present invention is not limited to these.
In the case of the control W1, as described above, all communication requests from the device 10 are allowed without limitation (in the present embodiment, the device 10 of the public special plan corresponds).
In the case of the control W2, the communication request from the device 10 is permitted once every three times (the device 10 of the premium plan corresponds in this embodiment).
In the case of the control W3, the communication request from the device 10 is permitted once every 10 times (the device 10 of the best effort plan corresponds in this embodiment).

FIG. 11B shows the transfer control content 234 to the carrier network 5 side stored in the priority control information storage unit 230. As described above, the transfer control contents to the carrier network 5 side include a control (C1) that requires immediate transfer in response to a communication request from the device 10 and a plurality of communication requests from the device 10 that are collectively transferred. And a control (C2) that allows that.
Although two control contents are included in the drawing, these are merely examples and the present invention is not limited to these.

FIG. 11C shows a division 236 of the occurrence state of a predetermined event managed by the management device 200 of this embodiment. In the management device 200 of the present embodiment, a state (S1) indicating that a predetermined event has not occurred and a normal state (S1) indicating that a predetermined event has occurred (S2 and S3). ) Is defined. Further, as described above, since the detection of the occurrence of the predetermined event includes the automatic determination and the manual setting, the state S2 indicates the automatically determined emergency state, and the state S3 indicates the manually set the emergency state. Indicates the state of.
In the figure, three state sections 236 are included, but these are examples and are not limited to these. As will be described later, it may be further divided into, for example, a period immediately after the occurrence of an event, a period from immediately after the occurrence to three days later, a temporary restoration period, etc., according to the elapsed time from the occurrence of the event.

  The determining unit 202 controls each device 10 for each of the self-employed wireless network 3 side and the carrier network 5 side based on various information (attribute information of each device 10) in the contract information database 210 and the device information database 220. The content is determined by selecting it from each table in FIG.

FIG. 12 is a diagram showing an example of the priority control table 204 storing the control content information of each device 10 determined by the determination unit 202.
For example, in the communication system shown in FIG. 10, there are at least two types of devices 10, devices Tai and devices Tbj (here, i and j are natural numbers) different in usage, contract content, etc., under the communication device 100. It is assumed that

In the management apparatus 200, the determination unit 202 determines the priority control content for each of at least two types of device Tai (hereinafter, also referred to as device Ta) and device Tbj (hereinafter, also referred to as device Tb) according to the attribute. Then, it is stored in the priority control table 204.
Here, for example, it is assumed that the device Ta is a device that is determined to have high publicity from the attribute information, and the device Tb is a device that is determined to be low publicity from the attribute information.

The timing at which the determining unit 202 generates or updates the priority control table 204 may be at least any one of the following or a combination thereof.
(E1) Normal time, periodically, or at a predetermined date and time (e2) When occurrence of a predetermined event is detected (e3) After detection of occurrence of a predetermined event, periodically or after a predetermined time has elapsed (e4) Manual (management (When accepting instructions from other people)
(E5) When the device 10 or the communication device 100 is added to the network, when the network configuration is changed (e6) When the attribute of the device 10 is changed (the management device 200 detects the change in the attribute) Time, or when an attribute change notification is received from the device 10)

There are various possible methods for the management apparatus 200 to know whether or not a predetermined event has occurred, and examples are given below, but the method is not limited to these. Moreover, you may combine the following plurality.
(F1) The occurrence of each predetermined event is automatically determined based on various sensor information of various devices 10.
(F2) Each event occurrence information is received from each predetermined information provider and automatically determined.
(F3) The administrator manually sets that a predetermined event has occurred.
(F4) Receives event occurrence detection information from the communication device 100.

The priority control table 204 stores, for example, the emergency self-employed wireless communication control content and the emergency transfer control content for each device 10 (device Ta and device Tb). Further, the priority control table 204 may include the current status.
The current state includes an emergency (S2, S3) in which the predetermined event of FIG. 11 (c) occurs and a normal time (S1). Further, as shown in FIG. 13, immediately after a predetermined event occurs (S21 (automatic), S31 (manual)), several days after the predetermined event occurs (for example, three days later) (S22 (automatic), S32 (manual)), a temporary recovery period after a predetermined event occurs (S23 (automatic), S33 (manual)), and normal time (S1). Then, the communication control on the side of the private wireless network 3 may be changed as time passes after the occurrence of a predetermined event. Further, the change over time is determined according to the attributes of the device 10.

  The priority control content of each of the devices Ta and Tb is determined by the determining unit 202 based on the contractor information stored in the contract information database 210 and the device attribute information stored in the device information database 220.

In the communication device 100, the control unit 106 connects to the management device 200 via the carrier network 5 and acquires the priority control table 204.
Further, the communication device 100 holds in advance the attribute information of each device 10 existing under its control. Therefore, each device 10 determines which device in the priority control table 204 corresponds and controls the device 10 according to the control content of the corresponding device.

Further, in the present embodiment, the determination unit 202 changes the priority control content of each device 10 according to the elapsed time from the occurrence of the event, and updates the priority control table 204.
For example, as shown in each drawing of FIG. 13, the content of the communication control of the emergency self-employed wireless network 3 is changed according to the elapsed time from the occurrence of the event for each group classified based on the attribute of the device 10. To be done. FIG. 13A shows an example in which the damage of the occurred event is very large, and FIG. 13B shows an example in which the damage of the occurred event is moderate.
In this way, the priority control content may be changed according to the degree of damage due to a predetermined event, for example, the range and scale (seismic intensity, number of casualties, missing persons, etc.). It may be automatically changed according to a predetermined control content, or may be manually changed by an administrator.

  Each group includes, for example, a device 10 having attributes as shown in FIG. This diagram is an example, and the attribute information used for classification is not limited to these. Also, the combination of attribute information is not limited to this. The attribute information may be weighted. For example, if the contract plan and the contractor attribute information are prioritized and the contract plan of the device 10 is public special, the data attribute is image, video, or audio data. They may be present or classified into group 1.

  In FIG. 14, the group 1 is the group of devices 10 having the highest public interest, and the public interest is low in the order of group 2, group 3, and group 4. In the present embodiment, the priority order of communication permission is set in this order. Therefore, in FIG. 13A, immediately after the occurrence of the event, only the device 10 of the group 1 is partially permitted (once every three times) without the communication control of the private wireless network 3, and Other groups are unauthorized. After that, until a few days later (for example, three days later), the devices 10 of the group 3 are partially permitted (once every 10 times), and only the devices 10 of the group 4 are not permitted. Further, during the provisional recovery period, the devices 10 in the groups 1 and 2 are not restricted, and the devices 10 in the groups 3 and 4 are partially permitted (once every 10 times). Then, after all are restored, the normal state is restored, and all the devices 10 are not restricted.

Further, in FIG. 13B, since it is assumed that the degree of damage is lower than in the case of FIG. 13A, immediately after the occurrence of the event, the devices 10 in the groups 1 and 2 have no communication restriction. The devices 10 in groups 3 and 4 are partially permitted (once every 10 times). Then, for three days from the occurrence, the devices 10 in the groups 1 to 3 have no communication restriction, and only the device 10 in the group 4 is partially permitted (once every 10 times). Then, after the provisional recovery period, the communication restrictions on the devices 10 of all the groups are removed.
In this way, the communication restriction level of each device 10 is changed according to the time elapsed from the occurrence of the event and the scale of damage caused by the event, so that appropriate measures can be taken according to the situation.

The control method of the management apparatus 200 of this embodiment configured as described above will be described below.
FIG. 15 is a flowchart showing an example of the operation of the management device 200 of this embodiment.
The control method according to the embodiment of the present invention is a control method for the management apparatus 200, and is a control method executed by a computer that implements the management apparatus 200.
In the control method of this embodiment, the management apparatus 200 determines the priority control content of each device 10 based on the attribute information of the device 10 and stores it in the priority control table 204 (step S203). Further, the management device 200 changes the priority control content of each device 10 according to the elapsed time from the occurrence of the event (YES in step S205), and updates the priority control table 204 (step S207).

  More specifically, when it is determined that a predetermined event has occurred (YES in step S201), the determination unit 202 determines the priority control content of each device 10 based on the attribute information of the device 10, and the priority control is performed. It is stored in the table 204 (step S203). If no event has occurred (NO in step S201), this process ends. Alternatively, the present process may be started when it is detected that a predetermined event has occurred.

  Then, when a predetermined time has passed and it is time to update the priority control content (YES in step S205), the determination unit 202 changes the priority control content of each device 10 and updates the priority control table 204. Yes (step S207). For example, the update timing of the priority control content includes, as described in FIG. 13, when several days have passed immediately after the occurrence of the event, when the provisional recovery period is entered, or when the normal return is made.

In this way, the priority control table 204 is stored. Then, the communication device 100 described in the above embodiment periodically accesses the priority control information storage unit 230, acquires the priority control table 204, and stores it in the memory 64 or the storage 66.
Then, as described in the above embodiment, the communication control of each device 10 is performed according to the priority control content set in the priority control table 204 and the attribute information of each device 10.

When the communication apparatus 100 acquires the priority control table 204 from the management apparatus 200, for example, only the priority control content of the device 10 having the attribute that matches the attribute of the device 10 existing under the communication apparatus 100 is acquired. Alternatively, the information about all the devices 10 may be acquired in advance, and the control content may be acquired from the information according to the attributes of the devices 10 under its control.
Alternatively, the management device 200 generates the priority control table 204 for each communication device 100 based on the attribute information of the device 10 under the control of each communication device 100, and responds to the communication device 100 according to the request from the communication device 100. The priority control table 204 may be delivered.

As described above, in the present embodiment, the determination unit 202 of the management device 200 determines the priority control content of each device 10 based on the attribute information of the device 10 and stores it in the priority control table 204. Then, in the communication device 100, when a predetermined event occurs, the control unit 106 refers to the priority control table 204 to perform control based on the priority control content of the device 10 that has received the communication request.
As described above, according to the present embodiment, the same effect as that of the above-described embodiment is obtained, and when a predetermined event occurs, the server side performs centralized management according to the attribute of the device 10 to quickly and flexibly control the contents of control. Since the communication apparatus 100 can control the communication of each device 10 according to the instruction while making the determination, it is possible to avoid the communication congestion and efficiently and appropriately control the network resource consumption.

  Further, in the present embodiment, since the priority control table is updated according to the elapsed time from the occurrence of the event, it is possible to take appropriate measures such as releasing the communication restriction according to the situation.

  Although the embodiments of the present invention have been described above with reference to the drawings, these are merely examples of the present invention, and various configurations other than the above may be adopted.

(Example)
Immediately after the occurrence of an earthquake disaster, network resources are limited due to disasters. In the present embodiment, in such a situation, communication from a device having a high public interest is preferentially permitted, while communication from a device having a low public interest is preferentially connected while partially permitting connection. Take control. In the present embodiment, a configuration example in which priorities are determined according to device attributes and priority connection control is performed according to the priorities will be described.

<Structure of Example>
FIG. 16 is a diagram conceptually showing the system configuration of the communication system 1 of the present embodiment.
In the communication system 1 of this embodiment, a plurality of M2M / IoT devices 10 (Ta, Tb) and a shared gateway (communication device 100) (hereinafter, also referred to as shared gateway 100) are connected by a private wireless network 3. It The shared gateway 100 has a function of an access point of the private wireless network 3 which is shared and used by systems and services of different companies or public offices, or different applications. The shared gateway 100 may further include a router or a gateway under it.

  The shared gateway 100 has a line termination function of the carrier network 5 and a wireless access point function of the private wireless network 3. The shared gateway 100 connects to the carrier network 5 in response to the communication request from the M2M / IoT device 10 and transfers the information from the device 10 to the requested destination (for example, the server 120).

  The communication system 1 according to the present exemplary embodiment includes a shared gateway 100, a contract management server 400 that manages contractor information of the M2M / IoT device 10 (Ta, Tb), and a device management that manages the use and data attributes of the device 10. A server 500 and a priority connection control device 300 that generates information necessary for executing priority connection control of the device 10 to the shared gateway 100 are provided.

  The priority connection control device 300 has a priority order information storage unit 320. The contract management server 400 has a contract information database 420. The device management server 500 has a device information database 520.

  In the priority order information storage unit 320, as in the above embodiment, the communication control content 232 on the side of the private network 3 shown in each figure of FIG. 11, the transfer control content 234 to the carrier network 5 side, and a predetermined content. It is also assumed that information such as the classification 236 of the event occurrence state is stored.

  The contract information database 420 stores the contractor and contract plan of the M2M / IoT device 10. The device information database 520 stores the use of the M2M / IoT device 10 and information such as data attributes, position information, transmission data capacity, and transmission date and time.

  The device information database 520 may hold the attribute information of the device 10 that may manage the communication system 1, or may hold the attribute information of each device 10 that is actually managed. Alternatively, the attribute information of the devices 10 existing under the shared gateway 100 may be held for each shared gateway 100. When there are a plurality of devices 10 having the same attribute, the attribute information may be held for each device 10 for all the devices 10, or the information indicating what kind of attribute the device 10 exists may be held. May be. Furthermore, in the latter case, information about what attribute the device 10 has, and the number of devices 10 having each attribute or identification information may be held.

  In this embodiment, the priority connection control device 300 determines the priority order (corresponding group) of the device 10 and the control content of each group based on the attribute information of the device 10. This configuration corresponds to the determining unit 202 in the above embodiment of FIG.

The determining unit 202 classifies the devices 10 into four groups, for example, as illustrated in FIG. 14, according to the contractor, the contract plan, the purpose, and the data attribute. Then, the determining unit 202 determines the priority control content of each group according to the degree of damage caused by a predetermined event and according to the elapsed time, as shown in FIG.
In the present embodiment, the M2M / IoT device 10 (Ta1, Ta2) belonging to the group 1 having a high public interest and the M2M / IoT device 10 (Tb1, Tb2) belonging to the group 3 having a low public interest are the private gateways of the shared gateway 100. It is assumed that it is connected to the network 3.

  For the grouping in FIG. 14, for example, a method of assuming the attributes of the devices 10 in advance and performing grouping according to the attributes, and a method of grouping the devices 10 according to the actual attributes of the devices 10 are possible. , May be any.

For example, the determining unit 202 determines the priority control content of each group for the shared gateway 100 that controls the communication of the device 10 within a predetermined range near the epicenter of the large earthquake, as illustrated in FIG. 13A. In addition, for the shared gateway 100 that controls the communication of the device 10 in a region slightly outside the epicenter (outside the predetermined range), the priority control content of each group is determined as illustrated in FIG.
In this embodiment, the device Ta having a high public interest has a higher priority than the device Tb having a low public interest, and communication is prioritized. In the present embodiment, the shared gateway 100 is assumed to control the communication of the device 10 near the epicenter of the large earthquake.

  The process of classifying the devices 10 into the groups of FIG. 14 and the priority and control contents of each group of FIG. 13 can be performed before the occurrence of a large earthquake or the like. After the earthquake occurs, depending on the distance from the epicenter and the scale of the earthquake, the priority control table 204 of FIG. 13 is referred to for the subordinate device 10 controlled by the shared gateway 100, and the group (priority order) and the control content are specified. get.

  In the present embodiment, since the shared gateway 100 manages the attribute information of the device 10 under the shared gateway 100, the shared gateway 100 accesses the priority order information storage unit 320 of the priority connection control device 300, and the device Although the priority control content corresponding to the ten attributes is acquired, the present invention is not limited to this.

  For example, the priority connection control device 300 holds the attribute information of the device 10 that each shared gateway 100 communicates with, in the device information database 520 for each shared gateway 100, and for each shared gateway 100 according to the device 10. The priority control table 204 including the priority control content may be created and held. Then, in response to a request from the shared gateway 100, the priority control table 204 of the shared gateway 100 may be transmitted to the shared gateway 100.

FIG. 17 is a functional block diagram showing a logical configuration of each device of the communication system 1 of this embodiment.
In the present embodiment, the shared gateway 100 has a reception unit 102, a transfer unit 104, a control unit 106, and a storage unit (for example, the memory 64 or the storage 66) that stores the priority control table 324.
In addition, each device 10 (Ta, Tb) includes an M2M system client application 12, a data transmission unit 14, a data collection processing unit 16, and a collected data storage unit 18.
The M2M system client application 12 is an application program that allows the device 10 to access the server 120 via the shared gateway 100 as a client, exchange information with the server 120, and cause the device 10 to realize a predetermined function.

  Each component of FIG. 17 of each device 10 is realized by an arbitrary combination of hardware and software of an arbitrary computer (not shown). A computer that implements the device 10 includes a CPU, a memory, a program that implements the components of FIG. 17 loaded in the memory, a storage unit such as a hard disk that stores the program, and a network connection interface. It will be understood by those skilled in the art that there are various modified examples of the realizing method and the apparatus. FIG. 17 shows blocks in units of functions rather than in units of hardware.

  The applications of the device Ta and the device Tb of FIG. 17 may be different programs that realize the functions of the respective devices. Further, in each device 10, a configuration not related to the present invention is not shown. Further, the connection line between each unit is omitted.

  The data collection processing unit 16 collects data to be collected by the device 10, and stores the data in the collected data storage unit 18. The data transmission unit 14 transmits the data accumulated in the collected data accumulation unit 18 to the server 120.

For example, when the device 10 is a smart meter, the data collection processing unit 16 of the device 10 collects measurement data such as power consumption from the watt hour meter and stores the measurement data in the collected data storage unit 18.
The data transmission unit 14 has a function of connecting to the private wireless network 3 and communicating with the shared gateway 100. The data transmission unit 14 periodically transmits the measurement data accumulated in the collected data accumulation unit 18 to the server 120 via the shared gateway 100, for example, every 30 minutes.

  In this embodiment, communication control of the private wireless network 3 is performed according to an instruction from the carrier side. For example, when a predetermined event, a large earthquake, or the like occurs, the occurrence of the predetermined event is automatically detected by the carrier or the priority connection control device 300, the contract management server 400, or the device management based on the information such as the seismograph. Detected by the server 500, in this embodiment, priority control is automatically started in accordance with the procedure of FIGS. 6 and 15. The method of detecting the occurrence of the predetermined event is as described in the above embodiment.

  Then, the carrier manually issues an instruction to update the priority control according to the recovery status, and the priority control table 204 is automatically updated according to the instruction or according to the elapsed time. After the final recovery, the carrier side or the priority connection control device 300 manually gives an instruction to change to the normal setting, and the priority control table 204 is updated according to the instruction.

  In this embodiment, the device Ta and the device Tb exist under the shared gateway 100. The group of each device (Ta and Tb) is group 1 and group 2 from the attribute, and the shared gateway 100 acquires the corresponding control content (FIG. 18A) from the priority control table 204. This control content may be stored in the memory 64 or the storage 66 of the shared gateway 100 as the priority control table 324. In this case, since the event Ta is immediately after the occurrence of the event (S21), the device Ta of the group 1 has no communication control of the private wireless network 3 (W1) and is indispensable for immediate transfer to the carrier network 5 (C1). The communication of the self-employed wireless network 3 is permitted once every three times (W2), and the immediate transfer to the carrier network 5 is not performed (C2).

  Furthermore, when the time has elapsed from the occurrence of the event, the determination unit 202 updates the priority control table 204 and notifies the shared gateway 100. The shared gateway 100 accesses the priority control table 204 and acquires the control content (FIG. 18B) corresponding to the devices Ta and Tb under its control. This control content may be stored in the memory 64 or the storage 66 of the shared gateway 100 as the priority control table 324. Here, since it is within 3 days after the occurrence (S22), the device Ta of the group 1 has no communication control of the private wireless network 3 (W1), and is required to be immediately transferred to the carrier network 5 (C1). The device Tb has no communication control of the private wireless network 3 (W1) and is indispensable for immediate transfer to the carrier network 5 (C1).

  In the present embodiment, when a predetermined event, here, a large earthquake occurs, the determination unit 202 of the priority connection control device 300 detects the current state of each device 10 from the normal state S1 immediately after the event occurrence. Change to state S21. At this time, the determination unit 202 extracts, for example, one column of the state S21 in FIG. 13A to create the priority control table 204, and notifies the shared gateway 100 of this. In addition, the state of the device 10 is changed over time, and the shared gateway 100 is notified when the state is changed.

  Further, in this embodiment, the shared gateway 100 is notified from the priority connection control device 300, and the shared gateway 100 accesses the priority order information storage unit 320 of the priority connection control device 300 upon receiving the notification, and sets the priority control table 204. get. At this time, the shared gateway 100 may acquire all the priority control tables 204, or may acquire only the priority control contents of the groups 1 and 3 corresponding to the devices Ta and Tb under its control. .

  As described above, the priority connection control device 300 may transmit a notification to each shared gateway 100, and the shared gateway 100 that has received the notification may access the priority order information storage unit 320. Alternatively, the shared gateway 100 may periodically or The priority order information storage unit 320 may be accessed as needed to refer to the priority control table 204, or a combination of these may be used. Which one of the configurations may be selected may be selected for each system, each private wireless network 3, each shared gateway 100, or the like.

The shared gateway 100 refers to the priority control table 324, and according to the attribute information of each device 10, sets communication request correspondence (sets all communication requests to be permitted, partially permitted, or not permitted) and immediately. The priority control content of the transfer setting (set to either implementation or non-implementation of immediate transfer) is acquired, and communication control of each device 10 is performed.
For example, in the case of the device 10 of the partially permitted group 2, when the channel tightness is recognized in the private wireless network 3 of the shared gateway 100 in response to the communication request from the device 10, the following measures are taken.
(B1) Communication request thinning (b2) Communication request minimum interval setting (b3) Device sleep instruction

<Operation>
The operation of the communication system 1 of this embodiment configured as described above will be described below.
First, when an emergency such as an earthquake occurs, the value of the state table (not shown) stored in the memory or storage of the priority connection control device 300 is changed from the normal state S1 to the emergency state S21. As described above, the detection of the occurrence of the predetermined event may be performed by, for example, receiving an operation instruction from the administrator, and in that case, the state becomes the state S31. Here, the state table may hold state information for each device 10, each group, each shared gateway 100, or each area.

  The determination unit 202 of the priority connection control device 300 refers to various tables stored in the contract information database 420 and the device information database 520 of the contract management server 400 and the device management server 500, and determines the elapsed time from the occurrence of the emergency. The priority control content for each group (priority order) is determined and the priority control table 204 (FIG. 13) is updated. In the priority control table 204, communication request correspondence setting (setting to any of communication request all permission (W1), partial permission (W2, W3), and non-permission (-)) for each group of devices 10 and immediate The transfer setting (set to either implementation (C1) or non-implementation (C2) of immediate transfer) is included.

Here, various methods of determining the priority order (grouping) in the priority control table 204 can be considered and are exemplified below, but are not limited thereto. Moreover, you may combine the following plurality.
(G1) Each device 10 is individually ranked according to its attributes (contractor, contract plan, usage, data attribute, location information, etc.).
(G2) For each of the communication device 100 or the self-employed wireless network 3, the ranking is determined according to the attribute (for example, the installation area, the degree of damage of the event) and the attribute of the device 10 under it.
(G3) The devices 10 are classified into groups based on the contractor, contract plan, usage, data attributes, position information, etc. of the devices 10, and the ranking is determined for each group.
(G4) Change the ranking based on the extent and extent of damage caused by a given event, the extent of restoration, etc.

  Further, for example, immediately after the occurrence of a predetermined event, priority control is performed according to the priority order determined based on the public interest and importance, and after a lapse of time after the occurrence, for example, the device 10 that accesses the carrier network 5. The priority control content may be changed so that the number of the above-mentioned items is within a predetermined number. You may increase the applicable device 10 which releases a communication restriction based on the attribute of the device 10, the area in which it is located, and the like.

The shared gateway 100 periodically refers to the priority control table 204 to obtain information on the priority control content of the group according to the attribute information of the devices 10 (Ta and Tb) under the shared gateway 100, for example. The priority control table 324 (FIG. 18) is stored in the memory 64 or the storage 66.
Then, the control unit 106 of the shared gateway 100 permits or partially permits the connection in response to the communication request from the M2M / IoT device (Ta, Tb) according to the communication request corresponding setting of each device (Ta, Tb). To execute. Further, according to the immediate transfer setting, the transfer of the data to the carrier network 5 is executed or not executed.

  For example, it is assumed that the M2M / IoT device Ta has a high public interest, subscribes to a special public plan, and is classified into group 1. It is assumed that the M2M / IoT device Tb has a low public interest but has a premium plan, and is classified into group 2.

In the priority control table 324 shown in FIG. 18A, immediately after the occurrence of the earthquake, the M2M / IoT device Ta has the communication request corresponding setting W1, the immediate transfer setting C1, and the device Tb the reference request corresponding setting W2, the immediate The transfer setting is C2.
The control unit 106 of the shared gateway 100 refers to the priority control table 324 and permits (W1) all communication requests through the private network 3 to the M2M / IoT device Ta. Then, the transfer unit 104 immediately transfers the data received from the M2M / IoT device Ta to the carrier network 5 (C1).

  On the other hand, for the M2M / IoT device Tb, the control unit 106 of the shared gateway 100 refers to the priority control table 324 and gives a sleep instruction to the self-employed wireless network 3 side so that upstream traffic is not transmitted for a prescribed time. . Then, the control unit 106 thins out the transmission request corresponding to the transmission request passing through the self-employed communication network 3 only once in three times and not in the remaining nine times (W2).

  In addition, since the immediate transfer is set to non-implementation (C2), the control unit 106 temporarily holds the information received by the receiving unit 102 of the shared gateway 100 in the shared gateway 100, and transfers the information. The information is transmitted to the 104 in batches a plurality of times. At this time, the shared gateway 100 may wait for the reception of the update information from the device 10Tb, and may collectively transfer the information when the number of receptions reaches a predetermined number.

Further, the shared gateway 100 may execute a minimum interval setting function for the transmission request corresponding to the transmission request, which locks the retransmission request transmitted within a fixed time so that the retransmission request is not counted.
As a result, the M2M / IoT device Tb has a mechanism that can detect that the connection request to the private network 3 is limited to only once in 10 times. You will be able to connect as you would, but you can prevent this.

  Further, when time has passed since the occurrence of the earthquake and the temporary recovery period (state S23) has been reached, in the priority connection control device 300, the determination unit 202 updates the priority control table 204. At this timing, the shared gateway 100 refers to the priority control table 204, acquires the information of the priority control content of the group according to the attribute information of the devices 10 (Ta and Tb) under the control of the shared gateway 100, and acquires the priority control table. It is stored in the memory 64 or the storage 66 as 324 (FIG. 18).

  In the priority control table 324 shown in FIG. 18A, for the M2M / IoT device Ta, the communication request corresponding setting is W1, the immediate transfer setting is C1, the device Tb is the reference request corresponding setting is W1, and the immediate transfer setting is C1. Will be updated.

  According to the updated information in the priority control table 324, the shared gateway 100 can control the communication of each device 10 according to the attribute of the device 10 under it. Immediately after the earthquake, the communication of the private wireless network 3 is restricted (W2), and the M2M / IoT device Tb that does not immediately transfer the data to the carrier network 5 (C2) also communicates with the private wireless network 3 at the temporary restoration period. The control is changed to no limit (W1) and immediate transfer to the carrier network 5 (C1).

  As described above, in this embodiment, the shared gateway 100 is interposed between the device 10 and the carrier network 5, so that the traffic concentration of the access connection to the private wireless network 3 and the carrier network 5 can be prevented when a predetermined event occurs. It can be avoided. Furthermore, in the present embodiment, these communication controls are performed by the priority connection control device 300 and the shared gateway 100 in combination, so that more efficient and appropriate control can be performed.

  As described above, according to the present invention, in an emergency (for example, a large earthquake, a wide area disaster, etc.) when a predetermined event occurs, a large number of devices make connection requests all at once, thereby reducing congestion on the carrier network 5. By avoiding this, the communication path of the device 10 that needs to be connected is preferentially secured, and the data can be reliably transferred to the M2M / IoT system.

Although the present invention has been described with reference to the exemplary embodiments and examples, the present invention is not limited to the above-described exemplary embodiments and examples. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.
In addition, in the present invention, when the information about the user is acquired and used, this is legally performed.

Hereinafter, an example of the reference mode will be additionally described.
1. The communication device
Receives a communication request from the device,
Transfer information received from the device to a network based on the received communication request,
When a predetermined event occurs, based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, and the communication of the device is controlled according to the determination result. A method for controlling a communication device.
2. The communication device is
According to the priority control content of each device, which is determined based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, Control device communication,
1. A method for controlling a communication device according to item 1.
3. The communication device is
If a part of the communication request of the device is permitted, the device is instructed to sleep for a certain period of time,
1. Or 2. A method for controlling a communication device according to item 1.
4. The communication device is
When the communication load of the network with the device is high,
Counting the communication request from a device that is allowed a part of the communication request, and permitting the communication request when the count reaches or exceeds a predetermined value,
1. To 3. A method for controlling a communication device according to any one of 1.
5. The communication device is
The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. Stop,
4. A method for controlling a communication device according to item 1.
6. The communication device is
Upon occurrence of a predetermined event, in response to the communication request received from the device, based on the attribute information of the device, the information received from the device is immediately transferred, or a plurality of the information received from the device is transmitted. The information received by the communication request is temporarily accumulated, and it is determined whether or not the accumulated information is to be collectively transferred, and the transfer of the information is controlled according to the judgment result.
1. To 5. A method for controlling a communication device according to any one of claims.

7. On the computer,
Procedure for receiving communication request from device,
A procedure for transferring information received from the device to a network based on the received communication request,
When a predetermined event occurs, based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, and the communication of the device is controlled according to the determination result. A program that causes you to perform the procedure.
8. According to the priority control content of each device, which is determined based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, 6. To make the computer execute the procedure for controlling the communication of the device, The program described in.
9. 6. To allow the computer to execute a procedure for instructing the device to sleep for a certain time when a part of the communication request of the device is permitted, Or 8. The program described in.
10. When the communication load of the network with the device is high,
6. To allow the computer to execute the procedure of counting the communication requests from the devices to which a part of the communication requests are permitted and permitting the communication requests when the count reaches a predetermined value or more. To 9. The program described in any one of.
11. The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. 10. To make the computer execute the procedure to stop. The program described in.
12. Upon occurrence of a predetermined event, in response to the communication request received from the device, based on the attribute information of the device, the information received from the device is immediately transferred, or a plurality of the information received from the device is transmitted. 6. To temporarily store the information received by the communication request, determine whether to collectively transfer a plurality of stored information, and cause the computer to execute a procedure for controlling the transfer of the information according to the determination result. To 11. The program described in any one.
13. Receiving means for receiving a communication request from the device,
Transfer means for transferring information received from the device to a network based on the communication request received by the receiving means,
When a predetermined event occurs, based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, and the communication of the device is controlled according to the determination result. Control means for
A communication device including.
14. The control means is
According to the priority control content of each device, which is determined based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, 13. Control device communication The communication device according to 1.
15. The control means is
When a part of the communication request of the device is permitted, the device is instructed to sleep for a certain period of time 13. Or 14. The communication device according to 1.
16. The control means is
When the communication load of the network with the device is high,
13. Counting the communication request from the device to which a part of the communication request is permitted, and permitting the communication request when the count reaches or exceeds a predetermined value. To 15. The communication device according to any one of claims.
17. The control means is
The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. Stop 16. The communication device according to 1.
18. The control means is
When a predetermined event occurs, based on the attribute information of the device, in response to the communication request received from the device, the transfer means to immediately transfer the information received from the device, or from the device 13. The information received by the plurality of received communication requests is temporarily stored, it is determined whether the plurality of stored information is collectively transferred, and the transfer of the information is controlled according to the determination result. To 17. The communication device according to any one of claims.
19. A communication device to which a plurality of devices are connected,
A management device connected to the communication device via a network,
The management device is
Determining means for determining the priority control content of each device based on the attribute information of the device and storing it in the priority control table;
Equipped with
The communication device is
Receiving means for receiving a communication request from the device,
Transfer means for transferring information received from the device to a network based on the communication request received by the receiving means,
When a predetermined event occurs, the priority control table of the management apparatus is referred to, and all the communication requests are permitted based on the priority control content corresponding to the attribute information of the device that has received the communication request, or a plurality of them are permitted. Determining whether to permit a part of the communication request of, and control means for controlling the communication of the device according to the determination result,
A communication system including.
20. The determination means of the management device,
19. The priority control content is changed according to the elapsed time from the occurrence of the event, and the priority control table is updated. The communication system according to.

1 Communication system 3 network (private wireless network)
5 network (carrier network)
7 Base Station 10 Device 12 M2M System Client Application 14 Data Transmission Section 16 Data Collection Processing Section 18 Collected Data Storage Section 60 Computer 62 CPU
64 memory 66 storage 68 I / O
69 Bus 80 Program 100 Communication device (shared gateway)
102 reception unit 104 transfer unit 106 control unit 120 server 200 management device 202 determination unit 204 priority control table 210 contract information database 220 device information database 230 priority control information storage unit 232 communication control content 234 transfer control content 236 state classification 300 priority connection control Device 320 Priority information storage unit 320 Anytime priority information storage unit 324 Priority control table 400 Contract management server 420 Contract information database 500 Device management server 520 Device information database

Claims (8)

Receiving means for receiving a communication request from the device,
Transfer means for transferring information received from the device to a network based on the communication request received by the receiving means,
When a predetermined event occurs, based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, and the communication of the device is controlled according to the determination result. Control means for
Equipped with
The attribute information is viewed contains the following items (a) or (b),
(A) Information indicating at least one of the degree of public interest and importance of the device (b) Information of at least one of the contractor or owner of the device, contract plan, usage, location information, and data attribute
The control means is
When the communication load of the network with the device is high, a part of the communication request counts the communication request from the permitted device, and the communication request when the count reaches a predetermined value or more. Allow,
The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. Stop the communication device. The control means is
According to the priority control content of each device, which is determined based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, The communication device according to claim 1, which controls communication of the device. The control means is
When a part of the communication request of the device is permitted, the device is instructed to sleep for a certain period of time,
After the sleep instruction, for said predetermined time said device has made a communication request in, after receiving the communication request, until the predetermined time has elapsed, or claim 1 and stops the counter one o'clock 2. The communication device according to item 2 . The control means is
When a predetermined event occurs, based on the attribute information of the device, in response to the communication request received from the device, the transfer means to immediately transfer the information received from the device, or from the device information received with the received plurality of communication requests temporarily storing, it is judged whether to collectively transferred the information more accumulated, any of claims 1 to 3 for controlling transfer of the information in accordance with the determination result The communication device according to item 1. A communication device to which a plurality of devices are connected,
A management device connected to the communication device via a network,
The management device is
Determining means for determining the priority control content of each device based on the attribute information of the device and storing it in the priority control table;
Equipped with
The communication device is
Receiving means for receiving a communication request from the device,
Transfer means for transferring information received from the device to a network based on the communication request received by the receiving means,
When a predetermined event occurs, the priority control table of the management apparatus is referred to, and all the communication requests are permitted based on the priority control content corresponding to the attribute information of the device that has received the communication request, or a plurality of them are permitted. Determining whether to permit a part of the communication request of, and control means for controlling the communication of the device according to the determination result,
Equipped with
The attribute information is viewed contains the following items (a) or (b),
(A) Information indicating at least one of the degree of public interest and importance of the device (b) Information of at least one of the contractor or owner of the device, contract plan, usage, location information, and data attribute
The control means of the communication device,
When the communication load of the network with the device is high, a part of the communication request counts the communication request from the permitted device, and the communication request when the count reaches a predetermined value or more. Allow,
The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. Stop the communication system. The determination means of the management device,
The communication system according to claim 5 , wherein the priority control content is changed according to the elapsed time from the occurrence of the event, and the priority control table is updated. The communication device
Receives a communication request from the device,
Transfer information received from the device to a network based on the received communication request,
When a predetermined event occurs, based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, and the communication of the device is controlled according to the determination result. Then
The attribute information is viewed contains the following items (a) or (b),
(A) Information indicating at least one of the degree of public interest and importance of the device (b) Information of at least one of the contractor or owner of the device, contract plan, usage, location information, and data attribute
Further, the communication device is
When the communication load of the network with the device is high, a part of the communication request counts the communication request from the permitted device, and the communication request when the count reaches a predetermined value or more. Allow,
The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. A method for controlling a communication device to stop . On the computer,
Procedure for receiving communication request from device,
A procedure for transferring information received from the device to a network based on the received communication request,
When a predetermined event occurs, based on the attribute information of the device, it is determined whether all the communication requests are permitted or a part of the plurality of communication requests are permitted, and the communication of the device is controlled according to the determination result. Is a program to execute the procedure to
The attribute information is viewed contains the following items (a) or (b),
(A) Information indicating at least one of the degree of public interest and importance of the device (b) Information of at least one of the contractor or owner of the device, contract plan, usage, location information, and data attribute
In addition, on the computer,
When the communication load of the network with the device is high, a part of the communication request counts the communication request from the permitted device, and the communication request when the count reaches a predetermined value or more. Procedure to allow
The count interval of the communication request from the device to which a part of the communication request is permitted is set to a predetermined time or more, and the count is temporarily held until the predetermined time elapses after the communication request is received from the device. A program to execute the procedure to stop .

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