JP6504975B2 - Service providing system and service providing method - Google Patents

Description

  The present invention relates to a service providing system and a service providing method for providing service information on a machine-to-machine basis through a gateway device to a user moving with a sensor device.

  BACKGROUND Conventionally, a machine-to-machine service providing system such as a Home Energy Management System (HEMS) that manages household energy consumption data has been put to practical use. For example, as disclosed in Patent Document 1, there is provided a server system including an M2M server, a plurality of devices from which data is generated, and a gateway device that relays communication between the M2M server and the device. is there. When this server system is applied to the above HEMS, for example, data attached to gas consumption etc. is generated by a device attached to a propane gas supply device at each home, and these data are aggregated by an M2M server installed in a gas company It is possible to configure a system that provides management and analysis, and provides users with various service information (transition of gas consumption of each home, operation status of gas transport system in this area, etc.).

JP, 2014-146123, A

  2. Description of the Related Art In recent years, service providing systems that connect sensor devices carried by users with a service management server and provide service information on a machine-to-machine basis to users carrying sensor devices are being put to practical use. For example, when a worker at a factory enters a specific work floor, a work support system in which work drawings etc. necessary for the work performed on the work floor are automatically displayed on the display, or a customer who visited a shopping mall When entering a specific store, it is a sales support system or the like in which the product advertisement of the store is automatically displayed on the display.

  Usually, a gateway device is provided between the sensor device and the service management server, and the sensor device and the gateway device are connected via a short distance wireless network such as Bluetooth (registered trademark), for example, and the gateway device and the service management The server is connected via a communication network such as the Internet, for example. The gateway device is installed in each predetermined area, and the gateway device in charge is automatically switched depending on which area the sensor device is in. In the case of the above-described HEMS or the like, the device is installed in each home and does not move, so the gateway device in charge of each device is not switched.

  A service providing system using a mobile sensor device such as a portable type is that when the sensor device moves to another area and the gateway device in charge is switched, the service that has been performed until just before the switch is smoothly continued. There is a problem of difficulty. Hereinafter, this problem will be described with the gateway device in charge before switching being called the original gateway device, and the gateway device in charge after switching being called the subsequent gateway device.

  Before switching, the original gateway device downloads the service information group related to the user from the service management server and extracts the appropriate service information from the service information server in order to provide the user carrying the sensor device with the predetermined service information. To the user. Then, when the gateway device in charge switches in the middle of providing the service information, the subsequent gateway device similarly downloads the service information group related to the user from the service management server and takes over the provision of the service information. In other words, since the later gateway device has to acquire a large number of service information groups again, the amount of communication on the Internet line becomes enormous, and it takes a long time to download, and the service by the later gateway device is quickly started. Is difficult.

  As described above, in the service providing system using the portable sensor device, it is difficult for the subsequent gateway device to take over and smoothly continue the service that the original gateway device has performed. This problem is a problem that does not occur in HEMS, and can not be solved using the server system technology disclosed in Patent Document 1.

  The present invention has been made in view of the above background art, and provides a service providing system and a service providing method capable of smoothly continuing the service provision when the sensor device moves and the responsible gateway device is switched. The purpose is to

  The present invention is provided with a sensor device that moves with a user, a service management server that manages service information groups related to the user, and communication devices capable of communicating with the sensor device that is installed in each predetermined area. And a plurality of gateway devices provided so as to be able to exchange data with the service management server, wherein the sensor device detects a predetermined physical quantity to obtain data information. Sensor unit that generates the sensor information, the data information, the sensor identification information of its own registered in advance in the service management server and the gateway device, and whether the sensor device is within its coverage area in the gateway device. And the sensor communication unit that wirelessly outputs position determination information for determining whether the B. The device includes a GW communication unit for communicating with the sensor device, the service management server, and other gateway devices in its own area, and the sensor device is in its own area Is determined based on the position determination information output by the sensor device, and when it is determined that the sensor device exists in its own area, a candidate recognition unit that recognizes the sensor device as a candidate sensor device in charge A responsible sensor device determining unit that determines whether the candidate sensor device in charge is to be the responsible sensor device, and the service information group related to the responsible sensor device from the service management server or the other gateway device A service information provider that provides the user who uses the sensor device in charge with the service information provider, and The information including the service information group service information providing unit obtains a service providing system in which a storage unit is provided with said to correspond to each charge sensor device is stored as a separate service provision information.

  When the in-charge candidate sensor device occurs in the gateway device, the in-charge sensor device determination unit of the gateway device determines the data information, the sensor identification information, and the position of the in-charge candidate sensor device acquired through the GW communication unit. The service information provider unit of the gateway device determined to be in charge, analyzes the determination information, and determines that the candidate sensor device in charge is set as the sensor device in charge when the predetermined condition is satisfied. Performs the process of identifying the original gateway device that was in charge of the sensor device in charge until just before by accessing the other gateway device through the unit, and accesses the original gateway device through the GW communication unit, Acquired the individual service provision information on the sensor device in charge Extract the appropriate service information from another service providing information, is performed to provide service information for the user on behalf of the original gateway device.

  The individual service provision information includes service information provided by the service information provider and contents of service information to be provided.

  When the candidate sensor device in charge occurs in the gateway device, the sensor device determination unit in charge of the gateway device accesses the other gateway device through the GW communication unit, and the candidate in charge is another gateway device. Even if it is redundantly checked whether it is recognized as a candidate sensor device in charge, if overlapping, processing for automatically adjusting between the corresponding sensor device determination units concerned is performed to satisfy a predetermined condition 1 The sharing may be determined such that only one gateway device recognizes the corresponding candidate sensor device.

  The position determination information is a signal strength of data information output by the sensor device, and the candidate recognition unit in charge of each gateway device determines whether the signal strength of the data information received by the GW communication unit is equal to or higher than a reference value Whether or not the sensor device is in its own area may be determined depending on whether or not it is.

  The gateway device is connected to a service providing device, which is an image display device, an audio generation device, or a printing device for outputting a printed matter, and the service information providing unit performs the service on the user who carries the sensor device in charge. The service information is provided through a provision device.

  Further, according to the present invention, there are provided a sensor device carried by a user, a service management server for managing a group of service information related to the user, and the sensor device which is installed in each predetermined area and is in its own area A service providing method, comprising: a plurality of gateway devices relaying communication with the service management server, wherein the gateway devices are communicably connected to each other, wherein the sensor device is a service providing method. The sensor information which is sensor output which detects a predetermined physical quantity, the sensor identification information of its own registered in advance in the service management server and the gateway device, and the sensor device within its coverage area in the gateway device And wirelessly output position determination information for determining whether or not to exist, and each of the gateway devices It is determined based on the position determination information output by the sensor device whether the sensor device is in its own area, and when it is determined that the sensor device is in its own area, the sensor device When recognized as a candidate sensor device in charge, and the candidate sensor device in charge is generated, the gateway device analyzes the data information of the candidate sensor device in charge, the sensor identification information and the position determination information, and determines a predetermined condition. If satisfied, the candidate sensor device in charge is determined to be the sensor device in charge of itself, and the gateway device decided to be in charge is in charge of the sensor device in charge until just before accessing the other gateway device. Perform processing to identify the original gateway device, access the original gateway device, and Service provision information acquiring the individual service provision information including the service information group related to the service unit, extracting appropriate service information from the acquired individual service provision information, and providing service information to the user on behalf of the original gateway device It is a method.

  The individual service provision information includes service information provided by the service information provider and contents of service information to be provided.

  When the original gateway device does not exist, the gateway device decided to be in charge accesses the service providing system, and acquires and acquires a service information group related to data information or sensor identification information of the sensor device in charge. Appropriate service information is extracted from the service information group and provided to the user using the sensor device in charge.

  When the candidate sensor device in charge occurs in the gateway device, the gateway device recognizes the candidate sensor device in charge overlapping with another gateway device as a candidate sensor device in charge by accessing the other gateway device. If there are duplicates, perform processing to automatically adjust between the corresponding gateway devices, and only one gateway device that satisfies a predetermined condition will be recognized as a candidate sensor device in charge It may be configured to determine the allotment.

  The position determination information is a signal strength of data information output from the sensor device, and each of the gateway devices takes charge of the sensor device depending on whether the signal strength of the received data information is equal to or higher than a reference value. It may be configured to determine whether it is in the area.

  The gateway device is connected to a service providing device, which is an image display device, an audio generation device, or a printing device that outputs a printed matter, and the gateway device is used for the user who carries the sensor device in charge. To provide the service information.

  In the service providing system and the service providing method of the present invention, a plurality of gateway devices installed in each area are communicably connected, and a specific sensor device is individually serviced from the original gateway device to the later gateway device. Provision information is delivered in a short time. Therefore, when the user and the sensor device move to another area and the gateway device in charge is switched, there is no need for the later gateway device to download a large amount of service information groups from the service management server. As a result, it is possible to rapidly take over the service from the original gateway device to the later gateway device, and smoothly provide the service information to the user.

  Further, even when a part of the area in charge is overlapped due to the radio wave reception capability of each gateway device, according to the service providing system and the service providing method of the present invention, a plurality of gateway devices communicate with each other to The sensor device may be configured to be automatically adjusted so that only one gateway device satisfying the predetermined condition is recognized as a candidate sensor device in charge. Therefore, even if the target sensor device is in the overlapping part of the area in which it is in charge, it is possible to prevent a plurality of gateway devices from providing service information to the user who uses the sensor device.

It is a system configuration figure showing one embodiment of a service offer system of the present invention. It is a functional block diagram which shows the structure of the sensor apparatus of FIG. It is a functional block diagram which shows the structure of the gateway apparatus of FIG. In the service providing system of this embodiment, it is a sequence diagram showing an operation in which a specific gateway device newly starts providing service information. FIG. 17 is a sequence diagram showing an operation performed by another gateway device in succession to the specific gateway device that has provided the service information in the service providing system of this embodiment.

  Hereinafter, an embodiment of a service providing system of the present invention and a service providing method used in this system will be described based on the drawings. As shown in FIG. 1, the service providing system 10 of this embodiment includes a sensor device M carried by a user Y and moved together, a service management server SS that manages service information groups related to the user, and an area A And a plurality of gateway devices GW each of which is installed and can communicate with the sensor device in its own area of responsibility A, and which can exchange information with the service management server SS. There is. Although the number of the user Y and the sensor device M is free, in FIG. 1, in order to facilitate the explanation, one set of Y1 and M1 is used. The plurality of areas A and the number of gateway devices GW are also free, but in order to facilitate the explanation, there are three sets of A1 to A3 and GW1 to GW3.

  The service providing system 10 is suitable for a work support system or the like in a factory, and the above-described configurations are, for example, as follows. A worker who works at a factory is a user Y1 who moves around the factory carrying the provided sensor device M1. The factory is divided into a plurality of areas A1, A2,... Such as a parts processing floor, an assembly floor, and an inspection floor, and gateway devices GW1, GW2,. The service management server SS is installed at a production control center located at a remote location, and drawings for processing parts, drawings for assembly, drawings for inspection, individual work fingers for all products manufactured at factories all over the country including this factory A set of books etc. (service information group) is collectively managed. For example, when the worker in the factory takes charge of the part processing of the product P, he enters the parts processing floor, performs work with reference to the part processing drawing (service information) of the product P, and then performs the product P When the person in charge of the assembly work is transferred, the worker moves to the inspection floor of the factory and performs the work with reference to the inspection drawing (service information) of the product P.

  As shown in FIG. 2, the sensor device M includes a sensor unit 12 and a sensor communication unit 14, and is provided to be able to output data information and position determination information continuously or in response to a request. The sensor unit 12 is a part that detects a predetermined physical quantity and generates data information, and is not limited to a sensor having a narrow meaning, such as an antenna or the like provided in an IC tag or the like that can communicate with the outside and process data. Also includes elements. Therefore, the type and number of physical quantities to be detected are free, and for example, as the sensor unit 12, a 3-axis acceleration sensor for detecting an acceleration acting on the main body of the sensor device M or a signal from the outside can be detected and returned. An element or the like can be provided. The sensor communication unit 14 wirelessly outputs the data information, the sensor identification information set to each sensor device M, and the position determination information of the sensor device M. The sensor identification information is an identification ID or the like of each sensor device M, and is registered in advance in the service management server SS and each gateway device GW. The position determination information is information for making each gateway device GW determine whether each sensor device M is in its own area A, and for example, uses the signal strength of the data information as the position determination information. be able to.

  As shown in FIG. 3, the gateway device GW includes a GW communication unit 16, a handling candidate recognition unit 18, a handling sensor device determination unit 20, a service information providing unit 22, a service providing device 24, and a storage unit 26.

  The GW communication unit 16 communicates with each of the sensor devices M located in its own area A through the first network 28. The first network 28 is preferably a near field wireless network such as Bluetooth (registered trademark). Also, communication is performed with the service management server SS through the second network 30. The second network 30 is preferably a telecommunications network, for example the Internet. Furthermore, it is a part that communicates with another gateway device GW through the third network 32. The third network 32 is preferably a 920 MHz band wireless network or the like having a longer radio wave reach than the first network 28, but may be a wired Local Area Network (LAN).

  The candidate recognition unit 18 determines whether each sensor device M is in its own area A, based on the position determination information output by each sensor device M, and exists in its own area A. When it judges, it is a portion which recognizes the sensor apparatus M as a candidate sensor apparatus M in charge. For example, when the position determination information of the sensor device M is the signal strength of the data information, the stronger the signal strength of the data information received by the GW communication unit 16, the shorter the separation distance between the sensor device M and the gateway device GW. If the signal strength of the data information received by the GW communication unit 16 exceeds the predetermined reference value α, for example, it is assumed that the sensor device M exists in its own area A It judges and recognizes it as a self-in-charge candidate sensor apparatus M.

  The assigned sensor device determination unit 20 is a part that determines whether or not the assigned candidate sensor device M is to be assigned to the assigned sensor device M. If the predetermined condition is satisfied, the assigned sensor device determining unit 20 is assigned to the assigned sensor device M. Assumed to be in charge of sensor device M Also, when the sensor device M in charge leaves the area A in charge of itself, processing for excluding the sensor device M from the sensor device in charge of self is performed. Details will be described later.

  The service information providing unit 22 accesses the service management server SS or another gateway device GW through the GW communication unit 16 to obtain a service information group related to the sensor device M in charge, and extracts appropriate service information from the service information group. , And provides the user Y carrying the sensor device M in charge. Here, the service providing device 24 is connected to the service information providing unit 22, and the service information is provided through the service providing device 24. The service providing device 24 is, for example, an image display device such as a display, an audio generation device such as a speaker, or a printing device such as a laser printer. The storage unit 26 associates the service information group acquired by the service information providing unit 22, the service information provided by the service information providing unit 22, and the contents of the service information to be provided with each sensor device in charge, so as to correspond to the individual service. This part is stored as provided information.

  Next, the operation of the service providing system 10 and the service providing method used in the service providing system 10 will be described based on FIG. 4 and FIG.

  The sequence diagram of FIG. 4 shows an example of an operation in which a specific gateway device GW newly starts providing service information. First, as shown in FIG. 1, when the user Y1 carrying the sensor device M1 enters the area A1 and turns on the sensor device M1, the sensor device M1 starts to output data information and position determination information (step S11). ). Thereafter, the sensor device M1 continues to output the data information and the position determination information.

  In the gateway devices GW1, GW2 and GW3, each in-charge candidate recognition unit 18 confirms the presence / absence of reception of the position determination information of the sensor device M1 and analyzes the position determination information, and the sensor device M1 takes charge of its own area A1, A2, It is determined whether it exists in A3. Here, since the position determination information is the signal strength of the data information and the signal strength of the data information received by the GW communication unit 16 exceeds the reference value α, the gateway equipment GW1 closer to the sensor equipment M1 is not the sensor equipment M1. It is determined that the sensor device M1 exists in the area A1 in its charge, and the sensor device M1 is recognized as a candidate sensor device M1 in its own charge (step S12). On the other hand, the gateway devices GW2 and GW3 which are separated from the sensor device M1 do not receive data information by the GW communication unit 16 or the signal intensity does not exceed the reference value .alpha. It does not recognize that it is the candidate sensor device M1 in charge.

  The gateway device GW1 in which the in-charge candidate sensor device M1 is generated determines that the in-charge sensor device determining unit 20 sets the in-charge candidate sensor device M1 as the in-charge sensor device M1 when the predetermined condition is satisfied. For example, the condition is that sensor identification information of the candidate sensor device M1 in charge is registered in the system. Therefore, sensor identification information is requested to the in-charge candidate sensor device M1 through the GW communication unit 16 (step S13), and the in-charge candidate sensor device M1 responds in response to the request (step S14). Then, the sensor device determining unit 20 in charge of the gateway device GW1 confirms that the returned sensor identification information matches the one registered in advance (step S15).

  Furthermore, here, it is also a condition to make sure that there is no duplication of responsibility among multiple gateway devices GW. Therefore, the sensor device determining unit 20 in charge of the gateway device GW1 accesses the other gateway devices GW2 and GW3 through the GW communication unit 16 so that the candidate sensor device M10 in charge of itself is duplicated even in the other gateway devices GW2 and GW3. Check if it is not recognized as a candidate sensor device in charge. If overlapping, it is adjusted among the corresponding sensor device determination units 20 in charge, and allotment of the candidate sensor devices in charge is determined so that any one gateway device GW is in charge of the sensor device M1 (step S16) ). The adjustment rule is set in advance, and for example, the gateway device GW with the strongest signal strength of the received data information is in charge of the sensor device M1. Alternatively, the gateway device GW whose signal strength is equal to or higher than the reference value α and the sensor output (for example, acceleration value) which is received data information is equal to or higher than the reference value β (β> 0) is in charge of the sensor device M1. It may be a rule such as

  Here, since the gateway device GW1 satisfies the above condition, the sensor device determining unit 20 in charge of the gateway device GW1 determines the sensor device M1 as its own sensor device M1 (step S17).

  Since communication is performed among the gateway devices GW1, GW2, and GW3 in step S16, each gateway device GW immediately detects the candidate sensor device M1 in charge of the gateway device GW1 until the “sensor device M1 Can be grasped as to whether or not there is another gateway device GW that has been recognized as being “in-charge sensor device M1 of its own”. That is, if there is an original gateway device GW that has provided a service to the user Y1 who carries the sensor device M1 until just before, the gateway device GW (the original gateway device GW) knows which Can be obtained. Here, since the original gateway apparatus GW does not exist, as shown in FIG. 4, when steps S16 and S17 are completed, the process proceeds to the next step S18.

  In the gateway device GW1 decided to be in charge, the service information providing unit 22 accesses the service providing system SS through the GW communication unit 16, and requests a service information group related to data information or sensor identification information of the sensor device M1 in charge (step S19), the service management server SS responds in response to the request (step S19). Then, appropriate service information is extracted from the acquired service information group and displayed on the service providing device 24.

  Here, when applied to the work support system in a factory described above, the service information group acquired by the service information provider 22 in step S19 is, for example, a set of work drawings related to the product P for which the worker (user Y1) is in charge. is there. The service information extracted in step S20 is, for example, a drawing for component processing necessary for an operation performed by the worker (user Y1) on the component processing floor (area A1). When a plurality of types of work are performed, different parts processing drawings are required for each work. For example, when one work is completed, the sensor unit 12 detects that the work is completed, and the sensor device M1 Outputs the fact as data information, and the gateway device GW1 executes step S20 again based on the data information to cause the service providing device 24 to display the next drawing for parts processing (appropriate service information).

  The sequence diagram of FIG. 5 shows an example of an operation that another gateway device takes over and performs instead of the specific gateway device that has provided the service information. FIG. 5 assumes a situation in which the user Y1 has moved from the area A1 to the area A2 after the series of operations shown in FIG. 4 are completed, and the same steps as those in FIG. There is.

  First, the user Y1 moves from the area A1 to the area A2. The sensor device M1 outputs data information and position determination information continuously or in response to a request (step S11).

  As for the gateway devices GW1, GW2 and GW3, each candidate candidate recognition unit 18 confirms the presence / absence of reception of the position determination information of the sensor device M1 and analyzes the position determination information as described above, and the sensor device M1 takes charge of itself. It is determined whether it exists in area A1, A2, A3. Here, the candidate recognition unit 18 in charge of the gateway device GW2 close to the sensor device M1 determines that the sensor device M1 exists in its own area A2, and recognizes the sensor device M1 as a candidate sensor device M1 for its own ( Step S12). On the other hand, the gateway devices GW1 and GW3 separated from the sensor device M1 do not receive data information by the GW communication unit 16 or the signal intensity does not exceed the reference value α even if they are received. It does not recognize that it is the candidate sensor device M1 in charge.

  Here, the gateway device GW1 determines that the sensor device M1 does not exist in its own area A1 and recognizes that the sensor device M1 has left the area A1 (step S111). The process for excluding the sensor device M1 from the sensor device in charge is performed, and the service information providing unit 22 stops providing the service information for the sensor device M1. Then, the individual service providing information on the sensor device M1 (the service information group acquired by the service information providing unit 22 in the previous step S19, the service information provided in the previous step 20, and the provision are provided in the storage unit 26 of the gateway device GW1. The contents of the planned service information) are stored (step S112).

  In the gateway device GW2 generated by the candidate sensor device M1 in charge at step S12 described above, the sensor device determination unit 20 in charge requests sensor identification information to the candidate sensor device M1 in charge via the GW communication unit 16 (step S13). ), The candidate sensor device M1 in charge responds in response to the request (step S14), and the sensor device determining portion 20 in charge of the gateway device GW2 confirms that the returned sensor identification information matches the one registered in advance (Step S15).

  Furthermore, the sensor device determination unit 20 in charge of the gateway device GW2 accesses the other gateway devices GW1 and GW3 through the GW communication unit 16 so that the candidate sensor device M10 in charge of itself is duplicated in the other gateway devices GW1 and GW3. Check if it is not recognized as a candidate sensor device in charge. If overlapping, it is adjusted among the corresponding sensor device determination units 20 in charge, and the sharing of the candidate sensor devices in charge is determined such that any one gateway device GW takes charge of the sensor device M1 (step S16) . Here, since the gateway device GW2 satisfies the above condition, the sensor device determining unit 20 in charge of the gateway device GW2 determines the sensor device M1 as its own sensor device M1 (step S17).

  Also, when communication is performed between the gateway devices GW1, GW2, and GW3 in step S16, the gateway device GW2 learns that the original gateway device for the sensor device M1 in charge is its GW1. .

  In the gateway device GW2 determined to be in charge, the service information providing unit 22 accesses the original gateway device GW1 through the GW communication unit 16, and requests individual service provision information of the sensor device M1 in charge (step S113). The GW 1 responds in response to the request (step S114). Then, the service information providing unit 22 of the gateway device GW2 extracts appropriate service information from the acquired individual service providing information based on the data information of the sensor device M1 in charge, and causes the service providing device 24 to display the information (step S20). ). That is, the gateway device GW2 provides service information to the user Y1 instead of the original gateway device GW1.

  Here, when applied to the work support system in a factory described above, the service information group included in the individual service provision information acquired by the service information provider 22 in step S114 is related to the product P for which the worker (user Y1) is in charge. Is a complete set of working drawings. The appropriate service information extracted in the next step S20 is, for example, an inspection drawing necessary for the work performed by the worker (user Y1) on the inspection floor (area A2). When a plurality of types of inspections are performed, another inspection drawing is required for each inspection. For example, when one inspection ends, the sensor unit 12 detects that the inspection ends and the sensor device M1 That is output as data information, and the gateway device GW2 performs step S20 again based on the data information, and causes the service providing device 24 to display the next inspection drawing (appropriate service information).

  As described above, in the service providing system 10 and the service providing method used in the service providing system 10, the gateway devices GW1, GW2,... Installed in the areas A1, A2,. With regard to the sensor device M1, predetermined individual service provision information is passed in a short time from the original gateway device GW1 to the subsequent gateway device GW2. Therefore, when the user Y1 and the sensor device M1 move to the area and the gateway device in charge is switched, there is no need for the later gateway device GW2 to download a large amount of service information groups again from the service management server SS. As a result, the handover of the service from the original gateway device GW1 to the later gateway device GW2 can be performed quickly, and the provision of service information to the user Y1 can be smoothly continued.

  Further, even if part of the coverage area overlaps due to the radio wave reception capability of each gateway device GW, in the service providing system 10, the gateway devices GW communicate with each other, and the sensor device M1 is subjected to a predetermined condition. Only one gateway device to be satisfied is automatically adjusted to be recognized as a candidate sensor device in charge (step S16). Therefore, even if the sensor device M1 exists in the overlapping part of the area in its charge, it is possible to prevent the plurality of gateway devices GW from providing service information to the user Y1 who carries the sensor device M1.

  Further, since the service providing system 10 uses the signal strength of the data information output from the sensor device M1 as the position determination information as the position determination information of the sensor device M1, a dedicated position determination information generation device is unnecessary. The sensor device can be miniaturized and the cost can be reduced.

  The service providing system and the service providing method of the present invention are not limited to the above embodiment, and the gateway device is not directly connected to the service management server, but is connected to the service management server via another gateway device. And also when there is a gateway device that is not directly or indirectly connected with the service management server. Also, the gateway device that first recognizes the sensor device does not necessarily obtain the information from the service management server first if it holds information about the sensor device in advance or if it is obtained from another database. good. The sensor device may be a device carried by the user, a device moving with the user, or any other device used together with the user's movement, such as a device that is used by the user. Further, information may be exchanged between the service management server and the sensor device through the gateway device, and the service management server may have a function of processing the information.

  In addition, for example, when the areas A1, A2, ... in charge of the gateway devices G1, G2, ... are set so as not to overlap with each other, with "other GWs" in step S16 of Figs. It is possible to omit the “adjustment” and determine the in-charge candidate sensor device M1 as the in-charge sensor device M1 as it is. In addition, “creation and storage of individual service provision information” in step S112 in FIG. 5 is performed at the timing when the gateway device GW1 recognizes that the sensor device M1 in charge has left the charge area A1, but the gateway device GW1 The contents may be periodically updated repeatedly at the timing of providing service information for the sensor device M1 in charge.

  Further, it goes without saying that the service providing system and the service providing method of the present invention can be used for applications other than the above-described work support system in the factory. For example, when a customer who visits a shopping mall enters a specific store, it can be used for a sales support system that automatically displays the product advertisement of the store on the display. Can also be used. In addition, the sensor device monitors the physical data (heart rate, body temperature, etc.) of the care recipient and automatically provides a graph representing daily changes in physical data, as well as findings on health status Etc.) can be used automatically for health monitoring systems etc.

10 service provision system 12 sensor unit 14 sensor communication unit 16 GW communication unit 18 charge candidate recognition unit 20 charge sensor device determination unit 22 service information provision unit 24 service provision device 26 storage unit A (A1, A2, A3) area GW (GW1) , GW2, GW3) Gateway Device M (M1) Sensor Device SS Service Management Server

Claims (11)

A sensor device that moves with a user, a service management server that manages service information groups related to the user, and communication devices that can be communicated with the sensor device that is installed in each predetermined area and that is in its own area A service providing system comprising: a plurality of gateway devices capable of exchanging data with a service management server;
The sensor device includes a sensor unit that detects a predetermined physical quantity and generates data information, the data information, sensor identification information of its own registered in advance in the service management server and the gateway device, and the gateway device. And the sensor communication unit that wirelessly outputs position determination information for determining whether the sensor device is in its own area.
The gateway device includes a GW communication unit for communicating with the sensor device, the service management server, and other gateway devices in its own area, and the sensor device is in its own area Whether or not it exists is determined based on the position determination information output by the sensor device, and when it is determined that the sensor device exists in its own area, a candidate recognition in charge that recognizes the sensor device as a candidate sensor device in charge The service information related to the sensor device in charge from the service management server or the other gateway device, and a sensor device determination portion in charge of deciding whether or not to set the sensor device candidate in charge as the sensor device in charge of itself Service information provided to a user who acquires a group, extracts appropriate service information from the group, and uses the corresponding sensor device And subjected part, the information including the service information group the service information providing unit has acquired, a storage unit is provided, wherein in correspondence with each assigned sensor device is stored as a separate service provision information,
When the in-charge candidate sensor device occurs in the gateway device, the in-charge sensor device determination unit of the gateway device determines the data information, the sensor identification information, and the position of the in-charge candidate sensor device acquired through the GW communication unit. Analyze the determination information, and determine that the candidate sensor device in charge is the sensor device in charge when the predetermined condition is satisfied,
The service information providing unit of the gateway device decided to be in charge is processing of identifying the original gateway device that was in charge of the sensor device in charge until just before by accessing another gateway device through the GW communication unit To access the original gateway device through the GW communication unit, obtain the individual service provision information on the sensor device in charge, and extract appropriate service information from the acquired individual service provision information, and the original gateway A service providing system for providing service information to the user on behalf of a device.   The service providing system according to claim 1, wherein the individual service providing information includes service information provided by the service information providing unit and contents of service information to be provided.   When the candidate sensor device in charge occurs in the gateway device, the sensor device determination unit in charge of the gateway device accesses the other gateway device through the GW communication unit, and the candidate in charge is another gateway device. Even if it is redundantly checked whether it is recognized as a candidate sensor device in charge, if overlapping, processing for automatically adjusting between the corresponding sensor device determination units concerned is performed to satisfy a predetermined condition 1 The service providing system according to claim 1 or 2, wherein the sharing is determined such that only one gateway device recognizes the corresponding candidate sensor device.   The position determination information is a signal strength of data information output by the sensor device, and the candidate recognition unit in charge of each gateway device determines whether the signal strength of the data information received by the GW communication unit is equal to or higher than a reference value The service providing system according to any one of claims 1 to 3, wherein it is determined whether or not the sensor device is in its own area according to whether or not it is.   The gateway device is connected to a service providing device which is an image display device, an audio generation device, or a printing device for outputting a printed matter, and the service information providing unit transmits the service to a user who uses the sensor device in charge. The service providing system according to any one of claims 1 to 4, wherein the service information is provided through a providing device. A sensor device that moves with a user, a service management server that manages service information groups related to the user, and communication devices that can be communicated with the sensor device that is installed in each predetermined area and that is in its own area A service providing method used in a service providing system, comprising: a plurality of gateway devices capable of exchanging data with a service management server, wherein the gateway devices are communicably connected to each other.
The sensor device includes data information that is a sensor output that has detected a predetermined physical quantity, sensor identification information of its own registered in advance in the service management server and the gateway device, and the sensor device in the gateway device. Wirelessly output position determination information for determining whether or not the user is in the area in charge;
Each of the gateway devices determines whether the sensor device is in its own area based on the position determination information output by the sensor device and determines that the sensor device is in its own area Recognize the sensor device as a candidate sensor device in charge
When the in-charge candidate sensor device is generated, the gateway device analyzes the data information of the in-charge candidate sensor device, the sensor identification information, and the position determination information, and satisfies the predetermined condition. Decide that the device will be your own sensor device,
The gateway device decided to be in charge performs processing for identifying the original gateway device that was in charge of the sensor device in charge until just before by accessing another gateway device, and accesses the original gateway device in question. Acquiring individual service provision information including the service information group relating to the sensor device in charge, extracting appropriate service information from the acquired individual service provision information, and providing service information to the user on behalf of the original gateway device A service providing method characterized by performing.   7. The service providing method according to claim 6, wherein the individual service provision information includes service information provided by the service information provider and contents of service information to be provided.   When the original gateway device does not exist, the gateway device decided to be in charge accesses the service providing system, and acquires and acquires a service information group related to data information or sensor identification information of the sensor device in charge. 8. The service providing method according to claim 6, wherein appropriate service information is extracted from the service information group and provided to a user who uses the sensor device in charge.   When the candidate sensor device in charge occurs in the gateway device, the gateway device recognizes the candidate sensor device in charge overlapping with another gateway device as a candidate sensor device in charge by accessing the other gateway device. If there are duplicates, perform processing to automatically adjust between the corresponding gateway devices, and only one gateway device that satisfies a predetermined condition will be recognized as a candidate sensor device in charge 9. The service providing method according to claim 6, 7, or 8, wherein the sharing is determined.   The position determination information is a signal strength of data information output from the sensor device, and each of the gateway devices takes charge of the sensor device depending on whether the signal strength of the received data information is equal to or higher than a reference value. The service providing method according to any one of claims 6 to 8, wherein it is determined whether or not it is in an area.   The gateway device is connected to a service providing device which is an image display device, an audio generation device, or a printing device for outputting a printed matter, and the gateway device is a device providing the service providing device to a user who uses the sensor device in charge. The service providing method according to any one of claims 6 to 9, wherein the service information is provided through

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