JP5065148B2 - Equipment management system and terminal controller - Google Patents

Description

  The present invention relates to an equipment management system for managing equipment in a building.

  In the conventional facility management system, as shown in FIG. 8, a specific controller (referred to as an interlocked controller) and a terminal controller provided in each facility are installed. This interlocking controller receives the equipment status notification from a terminal controller connected to a magnet sensor, an electric lock, or the like that detects the equipment status. The interlocking controller collectively manages the status notifications of all terminal controllers and controls the interlocking of facilities. For this reason, when a failure such as a stop of the interlock controller or a failure such as disconnection of the network to which the interlock controller is connected occurs, the interlock does not function.

Conventionally, as a method in which each terminal controller can share the state of another terminal controller without installing an interlocking controller, there is also a method of notifying all terminal controllers of a state change by broadcast communication (Patent Document 1). reference). However, since this broadcast communication uses broadcast communication of the network protocol, it is notified to all devices connected to the network, and status information is also notified to devices unrelated to the facility management system. End up.
Japanese Patent Application Laid-Open No. 09-200866

  Conventionally, a specific interlocking controller controls the interlocking of all facilities. Therefore, if a failure such as the interlocking controller stops or the network to which the interlocking controller is disconnected occurs, the interlocking of the facilities will occur. There was a problem of not functioning.

  In addition, there is a method in which each terminal controller shares the status of other terminal controllers by broadcast communication without installing an interlocked controller, but this method notifies the equipment status information to all devices connected to the network. Therefore, the equipment status information is also notified to equipment unrelated to the equipment management system, and there is a problem that a security problem arises. Also, in the method of sharing equipment status by broadcast communication, each terminal controller performs broadcast communication every time the equipment status changes, so that the load on the network increases due to the increase in equipment status change. There was a problem.

  The present invention has been made to solve such problems, and each terminal controller shares equipment state information of all terminal controllers without providing an interlocking controller that collectively manages the equipment state. It aims at providing the equipment management system which can perform the interlock control of all the equipment. It is another object of the present invention to provide an equipment management system with high security by a configuration in which equipment status information is not notified to equipment unrelated to the equipment management system. An object of the present invention is to provide a facility management system in which the load on the network does not increase even if the change in the state of the facility increases.

The facility management system according to the present invention is:
In an equipment management system provided with a plurality of terminal controllers provided corresponding to each equipment of a plurality of equipment, connected to a network,
The plurality of terminal controllers are
The shared data having the status information indicating the status of each of the plurality of facilities is transferred between the terminal controllers via the network,
Each terminal controller of the plurality of terminal controllers is
A detection unit for detecting the state of the corresponding equipment;
A shared data receiving unit that receives the shared data from any other terminal controller other than the own terminal controller via the network;
A state setting unit for adding the state information indicating the state of the equipment detected by the detection unit to the shared data received by the shared data receiving unit;
A shared data transfer unit that transfers the shared data to which the state information of the equipment is added by the state setting unit to any other terminal controller other than the own terminal controller via the network. And

  According to the present invention, since each terminal controller included in the equipment management system can share the shared data having the status information of all equipment, without providing an interlocking controller that collectively manages the status of all equipment, It is possible to provide an equipment management system capable of performing state control. In addition, since shared data is transferred between terminal controllers provided for each facility, the equipment status information is not notified to equipment unrelated to the equipment management system, and equipment management with high security is ensured. A system can be provided. Further, it is possible to provide an equipment management system in which the load on the network does not increase even when the change in the equipment state increases.

Embodiment 1 FIG.
FIG. 1 is a system configuration diagram showing a system configuration of an access management system 800 according to the first embodiment. With reference to FIG. 1, a system configuration of an access management system 800 including a plurality of terminal controllers 4 (4a, 4b,..., 4n) will be described.

  The entrance / exit management system 800 is a system for managing the state of a plurality of doors installed in a building or the like. The door state includes, for example, an electric lock state of the door (effective / invalid state of the electric lock), an open / close state of the door, a guard state of the door, and the like. The access management system 800 includes a plurality of terminal controllers 4 (4a, 4b,..., 4n) corresponding to the plurality of doors 5 (5a, 5b,..., 5n) to be managed. That is, the entrance / exit management system 800 (an example of an equipment management system) is a terminal controller 4a, 4b,... Provided corresponding to each of a plurality of doors 5a, 5b,. , 4n.

  The plurality of terminal controllers 4 (4a, 4b,..., 4n) receive a plurality of shared data 200 in which the state of each door of the plurality of doors 5 (5a, 5b,..., 5n) to be managed is set. Are transferred via the LAN 1 between the terminal controllers 4 (4a, 4b,..., 4n). The access management system 800 sequentially transfers one shared data 200 between a plurality of terminal controllers 4 (4a, 4b,..., 4n), thereby a plurality of management targets set in the shared data 200. The state information of the door 5 (5a, 5b,..., 5n) can be shared.

  In the following, what is described as the terminal controller 4 means the terminal controllers 4a, 4b,..., 4n, or means at least one of the terminal controllers 4a, 4b,. To do. The same applies to the descriptions of the door 5 (5a, 5b,..., 5n), the magnet sensor 2 (2a, 2b,..., 2n) and the electric lock 3 (3a, 3b,..., 3n). . The same applies to the description of functional blocks described later (for example, shared data receiving unit 41 (41a, 41b,..., 41n), detection unit 42 (42a, 42b,..., 42n), etc.).

  The terminal controller 4 is connected to the electric lock 3 of the door 5 and the magnet sensor 2 that detects the state of the door 5 (for example, the open / closed state of the door). The terminal controller 4 inputs electric lock state information 30 (an example of state information) indicating an electric lock state indicating whether or not the electric lock 3 is engaged from the electric lock 3 to be connected. Further, the terminal controller 4 inputs door state information 20 (an example of state information) indicating a door state (for example, an open / closed state of the door) from the magnet sensor 2 to be connected. Thereby, the terminal controller 4 can detect the electric lock state of the corresponding door 5 (an example of the state of equipment) or the door state of the corresponding door 5 (an example of the state of equipment).

  The plurality of terminal controllers 4 (4a, 4b,..., 4n) are connected to a LAN (local area network) 1 such as Ethernet (registered trademark), and the plurality of terminal controllers 4 (4a, 4b,. .., 4n) are configured to communicate with each other via LAN1. The terminal controller 4 communicates with another terminal controller via the LAN 1 using the IP (Internet Protocol) address of the other terminal controller.

  In addition, the plurality of terminal controllers 4 (4a, 4b,..., 4n) are in a state (electricity) of each of the plurality of doors 5 (5a, 5b,..., 5n) (an example of a plurality of facilities). One shared data 200 to which a lock state, a door state, etc.) are added is sequentially transferred via LAN 1 between a plurality of terminal controllers 4 (4a, 4b,..., 4n) as a transfer target. That is, in the access control system 800, the shared data 200 for setting the states of all doors 5 managed by the system is defined in advance, and the shared data 200 is shared among the terminal controllers 4 (4a, 4b,..., 4n). Are sequentially transferred via the LAN 1, each terminal controller 4 sets the latest door state information. Thus, each terminal controller 4 is an electric lock for the doors (5a, 5b,..., 5n) managed by all the terminal controllers (4a, 4b,..., 4n) connected to the LAN 1. The shared data 200 in which the state, the door state, etc. are set can be shared. Therefore, each terminal controller 4 can know the state information of all the doors (5a, 5b,..., 5n), and interlocks with the state change of the door managed by the other terminal controller for the door managed by itself. Control can be realized.

  FIG. 2 is a functional block configuration diagram showing a functional block configuration of the terminal controller 4 according to the first embodiment. In FIG. 2, the function of the terminal controller 4a will be described for simplicity, but the other terminal controllers 4 (4b,... 4n) have the same configuration.

  The terminal controller 4a includes a shared data receiving unit 41a, a detecting unit 42a, a state setting unit 43a, a shared data transfer unit 44a (response confirmation receiving unit), and a timer 47a. The storage device of the terminal controller 4a stores a shared data storage unit 45a and a shared data communication parameter storage unit 46a.

  The shared data receiving unit 41a receives the shared data 200 from the terminal controller 4 other than the terminal controller 4a (own terminal controller) via the LAN 1. In addition, when the shared data receiving unit 41a receives the shared data 200, the shared data receiving unit 41a returns an ACK 60 (response confirmation information) to the shared data transmission source as a response indicating that the shared data 200 has been correctly received.

  The detection part 42a detects the state of the corresponding door 5a. The detection unit 42a inputs electric lock state information 30 indicating an electric lock state such as whether or not the electric lock 3 is engaged from the electric lock 3a of the door 5a. Moreover, the detection part 42a inputs the door state information 20 which shows door states, such as the opening / closing state of the door 5a, from the magnet sensor 2a of the corresponding door 5a. Moreover, the detection part 42a may input the guard status information 10 from the guard apparatus 11a, when the guard apparatus 11a etc. are provided in the door 5a.

  For example, the detection unit 42a requests a state information request for inputting the electric lock state information 30, the door state information 20, and the security state information 10 every time the shared data receiving unit 41a receives the shared data 200 from another terminal controller. Is transmitted to the electric lock 3, the magnet sensor 2, and the security device 11. Or the detection part 42a may transmit the information information request | requirement to the electric lock 3, the magnet sensor 2, and the security apparatus 11 regularly. Alternatively, each device (electric lock 3, magnet sensor 2, security device 11) detects information asynchronously at a timing set individually by each device (electric lock 3, magnet sensor 2, security device 11). You may make it transmit to 42a. However, considering that it is preferable for the terminal controller 4a to set the latest door information (electric lock state information 30, door state information 20, security state information 10) in the shared data 200, information (electric lock state information) It is preferable to synchronize the input of 30 / door state information 20 / security state information 10) with the reception of the shared data 200.

  The detection unit 42a temporarily stores the input information (electric lock state information 30, door state information 20, and guard state information 10) in the storage device.

  The state setting unit 43a sets (adds) the door state information 20, the electric lock state information 30, and the guard state information 10 detected by the detection unit 42a to the shared data 200 received by the shared data receiving unit 41a. In addition, the state setting unit 43a stores, in the shared data storage unit 45a, the shared data 200 in which the door state information (door state information 20, electric lock state information 30, security state information 10, etc.) is set (added). That is, the shared data 200 stored in the shared data storage unit 45a by the state setting unit 43a is the shared data 200 in which the latest door state information 202a is set.

  FIG. 3 is a diagram showing a structure of shared data 200 according to the first embodiment. The structure of the shared data 200 will be described using FIG.

  The shared data 200 includes a reverse flag 201 and door state information 202 (202a, 202b,..., 202n) corresponding to the terminal controller 4 (4a, 4b,..., 4n). The door state information 202 includes an electric lock state 203, a door state 204, and a security state 205.

  The inversion flag 201 indicates whether to reverse the transfer order when the shared data 200 is transferred between the plurality of terminal controllers 4 by turning on / off the flag. As described above, in the access management system 800, the shared data 200 is sequentially transferred among the plurality of terminal controllers 4 (4a, 4b,..., 4n) provided in the access management system 800. The transfer order of the shared data 200 at that time is preset in the shared data communication parameter storage unit 46 described later. The inversion flag 201 is a flag indicating whether or not to reverse this transfer order. In the access control system 800, when the inversion flag 201 is off, it indicates that the transfer order of the shared data 200 is a preset transfer order, and when the inversion flag 201 is on, the shared data 200 is transferred. This transfer order indicates that the preset transfer order is reversed. Details of the transfer order of the shared data 200 and the inversion flag 201 will be described later.

  As shown in FIG. 3, the shared data 200 includes all of the plurality of terminal controllers 4 (4 a, 4 b,..., 4 n) provided in the access management system 800 for the doors of the doors 5 corresponding to the terminal controllers 4. The state information 202 can be set in association with each other. The shared data 200 includes an electric lock state 203, a door state 204, and a security state 205 for each terminal controller 4 of the plurality of terminal controllers 4 (4a, 4b,..., 4n) by the state setting unit 43a. Is set. The state setting unit 43a sets (adds) the door state information 20 detected by the detection unit 42a to the door state 204a, sets (adds) the electric lock state information 30 to the electric lock state 203a, and sets the security state information 10 It is set (added) to the security state 205a.

  Returning to FIG. The shared data transfer unit 44a transmits the shared data 200, to which the door state information 202a of the door 5a is added by the state setting unit 43a, to a transfer destination that is one of the other terminal controllers other than the terminal controller 4a via the LAN 1. Transfer to terminal controller (transfer destination terminal controller).

  When the shared data transfer unit 44 serving as a response confirmation receiving unit transfers the shared data 200 to the transfer destination terminal controller, the shared data transfer unit 44 receives ACK 60 (response check information) that is a response to the transferred shared data 200 from the transfer destination terminal controller. To do.

  The shared data communication parameter storage unit 46a (an example of a transfer order information storage unit) transfers transfer order information indicating the transfer order of the shared data 200 transferred between the plurality of terminal controllers 4 (4a, 4b,..., 4n). The shared data communication parameter 500 is stored. The shared data communication parameter storage unit 46a is an example of a shared data communication parameter 500 (an example of a transfer order address table) in which the addresses of the terminal controllers of the plurality of terminal controllers 4 (4a, 4b,..., 4n) are set in order. ) Is stored as transfer order information indicating the transfer order of the shared data 200.

  FIG. 4 is a diagram showing a configuration of the shared data communication parameter 500 according to the first embodiment. The configuration of the shared data communication parameter 500 will be described with reference to FIG.

  In the shared data communication parameter 500, a parameter (information indicating the transfer order of the shared data 200) for communicating the shared data 200 between the terminal controllers is set in advance by a system administrator or the like. As shown in FIG. 4, the shared data communication parameter 500 includes an ID number 501, a self IP address 502, a previous IP address 503, a next IP address 504, and a timeout value 505.

  In the ID number 501, the index number of the terminal controller 4 is set. The index number of the terminal controller 4 is an identification number previously assigned to each terminal controller by a system administrator or the like.

  In the own IP address 502 corresponding to the index number of the own terminal controller, the IP address of the own terminal controller is set. In the previous IP address 503, an IP address of a terminal controller (hereinafter referred to as a previous terminal controller) that is ordered before the own IP address is set. In the next IP address 504, an IP address of a terminal controller (hereinafter referred to as the next terminal controller) ordered next to its own IP address is set. The transfer destination terminal controller to which each terminal controller 4 (own terminal controller) transfers the shared data 200 is either the previous terminal controller or the next terminal controller. Further, when each terminal controller 4 (own terminal controller) receives the shared data 200, the transmission source terminal controller is either the previous terminal controller or the next terminal controller.

  Therefore, if each terminal controller 4 (own terminal controller) can determine the previous terminal controller and the next terminal controller, it receives the shared data 200 and sends ACK 60 as a reception confirmation response to the transmission source terminal controller. A series of processes can be performed in which a response is made and the shared data 200 is transferred to the transfer destination terminal controller. That is, the shared data communication parameter 500 may be information including at least the transfer order among the own terminal controller, the terminal controller ordered next to the own terminal controller, and the terminal controller ordered before the own terminal controller. . That is, the shared data communication parameter 500 including at least the address of the own terminal controller, the address of the previous terminal controller, and the address of the next terminal controller may be provided. For example, as shown in FIG. 4, the terminal controller 4a may only include information indicated by the transfer order information 500a of the terminal controller 4a.

  As the timeout value 505, a value obtained by adding the value of the ID number to the fixed time T is set (defined). The value obtained by adding the ID number value to the fixed time T is used as the timeout value when a plurality of terminal controllers 4 are activated at the same time and the counter value of the timer 47 is synchronized. This is because the time-out value of each terminal controller 4 is shifted in order to prevent the situation where the data 200 are transmitted with each other.

  As described above, in the shared data communication parameter 500, for all the terminal controllers 4 (4a, 4b,..., 4n) included in the access control system 800, the previous IP address of the previous terminal controller and the next IP of the next terminal controller are included. By defining the address, it is possible to indicate the transfer order in which the shared data 200 is transferred between the plurality of terminal controllers 4 (4a, 4b,..., 4n).

  The shared data communication parameter 500 is defined in advance by a system administrator and stored in the storage device (shared data communication parameter storage unit 46) of each terminal controller 4. By adopting such a configuration, for example, even when a change occurs in equipment in a building, the change in the equipment can be easily reflected in the shared data communication parameter 500.

  Each terminal controller 4 may be configured to have only information corresponding to the index number of its own terminal controller. For example, the terminal controller 4a (ID number is 1) may have only the transfer order information 500a of the terminal controller 4a as shown in FIG. In this case, the resource usage capacity of the storage device provided in the terminal controller 4a is saved.

  FIG. 5 is a flowchart showing shared data transfer processing of the terminal controller 4 according to the first embodiment. The operation of the shared data transfer process of the terminal controller 4 will be described with reference to FIG. In the shared data transfer process of the terminal controller 4, the shared data reception unit 41, the detection unit 42, the state setting unit 43, and the shared data transfer unit 44 (response confirmation reception unit) included in the terminal controller 4 are a processing device (CPU) and a storage device. , Processing executed using hardware resources such as a receiving device and a transmitting device.

  First, as a premise, the shared data communication parameter storage unit 46 of each terminal controller 4 stores a shared data communication parameter 500 defined in advance by an administrator or the like. The shared data storage unit 45 stores in advance shared data 200 in which a setting area for setting state information of each door 5 managed in the access management system is defined. That is, shared data 200 having the format shown in FIG. 3 is defined and stored in the shared data storage unit 45 in advance. In the shared data transfer process of the terminal controller 4 described below, the door state information detection process of the detection unit 42 and the shared data reception process of the shared data reception unit 41 are not synchronized, and the detection unit 42 It is assumed that the detection process of the door state information 202 is executed at any time, and the door state information (electric lock state information 30, door state information 20, security state information 10) is stored in the storage device as needed.

<Terminal controller start processing>
First, when the terminal controller 4 is activated, the timer 47 is reset to the initial value 0 by the processing device.

<Shared data reception processing: S01 to S02>
In S01, the shared data receiving unit 41 checks reception of the shared data 200 by the processing device. When the shared data 200 is not received (No in S01), the shared data receiving unit 41 performs a timeout check in S02 by the processing device. When the shared data receiving unit 41 checks the timeout, the shared data receiving unit 41 compares the value of the timer 47 and the timeout value corresponding to its own terminal controller 4 set in the shared data communication parameter 500 by the processing device. Judge whether or not. In the following description, the timeout process is performed in the same manner.

  If it is not a timeout (No in S02), the shared data receiving unit 41 returns to S01 and repeats the reception check of the shared data 200. In the case of timeout (No in S02), the shared data receiving unit 41 moves the process to S05.

<ACK transmission processing: S03>
If the shared data 200 has been received (Yes in S01), in S03, the shared data receiving unit 41 generates an ACK 60 (an example of response confirmation information) that is a response to the received shared data 200 by the processing device. In order to notify that the shared data 200 has been received, a process of returning an ACK 60 to the terminal controller that has transmitted the shared data 200 is performed. . Below, the process which returns ACK60 to the terminal controller of the transmission source of the shared data 200 is demonstrated.

  First, the shared data receiving unit 41 uses the processing device to determine the inversion flag 201 of the received shared data 200. When the inversion flag 201 is off, the shared data receiving unit 41 means that the transfer order of the shared data 200 has not been reversed. Therefore, the shared data 200 is determined to have been transmitted from the previous terminal controller. To do. The shared data receiving unit 41 acquires the previous IP address of the previous terminal controller from the shared data communication parameter 500 and transmits the ACK 60 generated using the processing device to the previous terminal controller.

  When the inversion flag 201 is on, the shared data receiving unit 41 means that the transfer order of the shared data 200 is reversed. Therefore, it is determined that the shared data 200 has been transmitted from the next terminal controller. To do. The shared data receiving unit 41 acquires the next IP address of the next terminal controller from the shared data communication parameter 500 and transmits the ACK 60 generated using the processing device to the next terminal controller.

<State setting process: S04>
Next, in S04, the state setting unit 43 applies the state information (the electric lock state information 30 / the door state information 20) of the door 5 detected by the detection unit 42 to the shared data 200 received by the shared data receiving unit 41. Set (add) security status information 10). As described above, here, it is assumed that the door state information is stored in the storage device as needed by the detection unit 42. The state setting unit 43 acquires door state information (electric lock state information 30, door state information 20, security state information 10) stored in the storage device by the detection unit 42 from time to time, and acquires shared data. Set to 200. Further, the state setting unit 43 stores the shared data 200 in which the state information (electric lock state information 30, door state information 20, security state information 10) of the door 5 is set (added) in the shared data storage unit 45.

  Here, the state setting process of S04 is performed after the ACK transmission process of S03, but the order is not limited to this, and the ACK transmission process of S03 may be performed after the state setting process of S04. Further, the ACK transmission process of S03 and the state setting process of S04 may be executed in parallel.

<Shared data transfer process: S05>
Next, the shared data transfer unit 44 performs a transfer process of the shared data 200. First, the shared data transfer unit 44 extracts the shared data 200 stored in the shared data storage unit 45 from the storage device, and determines the inversion flag 201 set in the extracted shared data 200 by the processing device. Here, the shared data 200 stored in the shared data storage unit 45 is the shared data 200 received by the shared data receiving unit 41 and added with the state information of the door 5 by the state setting unit 43. Even when the process is shifted from S02 due to timeout, the shared data storage unit 45 stores the shared data 200 stored in advance by the initial process or the previously received shared data 200. The shared data transfer unit 44 can proceed with the process.

  When the inversion flag 201 is off, the shared data transfer unit 44 shares the shared data indicated by the shared data communication parameter 500 (transfer order information) stored in the shared data communication parameter storage unit 46 (transfer order information storage unit). The shared data 200 is transferred according to the transfer order of 200 (that is, according to the transfer order). That is, the shared data transfer unit 44 acquires the next IP address of the next terminal controller that is ordered next to the own IP address of the own terminal controller from the shared data communication parameter 500 (transfer order address table). The next IP address is determined as the address of the transfer destination terminal controller. The shared data transfer unit 44 transfers the shared data 200 to the next terminal controller via the network.

  When the inversion flag 201 is on, the shared data transfer unit 44 transfers the transfer order indicated by the shared data communication parameter 500 (transfer order information) stored in the shared data communication parameter storage unit 46 (transfer order information storage unit). The shared data 200 is transferred according to the order in which is inverted. That is, the shared data transfer unit 44 acquires the previous IP address of the previous terminal controller that is ordered before the own IP address of the own terminal controller from the shared data communication parameter 500 (transfer order address table). It is determined that the previous IP address is the address of the transfer destination terminal controller to be transferred. The shared data transfer unit 44 transfers the shared data 200 to the previous terminal controller via the network.

  In S51, shared data transfer unit 44 resets timer 47.

<ACK reception processing: S06 to S10>
Next, in S06, the shared data transfer unit 44 (response confirmation reception unit) checks reception of the ACK 60. When the shared data transfer unit 44 transfers the shared data 200 to the transfer destination terminal controller, the shared data transfer unit 44 (response confirmation reception unit) transfers ACK 60 (response confirmation information) that is a response to the transferred shared data 200. It is checked by the processing device whether it is received from the destination terminal controller.

  When the ACK 60 is received (Yes in S06), it means that it has been confirmed that the shared data 200 has been correctly transferred to the transfer destination terminal controller. Therefore, the shared data transfer unit 44 resets the timer 47 and shifts to S01. The process is returned to the terminal controller 4, and the shared data 200 is waited for.

  When the ACK 60 is not received (No in S06), the shared data transfer unit 44 checks in S07 whether or not a timeout has occurred.

  If it is not time-out (No in S07), the shared data transfer unit 44 moves the process to the ACK 60 waiting state (S06).

  In the case of timeout (Yes in S07), that is, when the shared data transfer unit 44 transfers the shared data 200, if the ACK 60 is not received within a predetermined time (timeout value), the shared data transfer unit 44 The following processing is performed.

  First, in S08, the shared data transfer unit 44 takes out the received shared data 200 stored in the shared data storage unit 45 and inverts the flag of the inversion flag 201 indicated by the shared data 200. That is, the shared data transfer unit 44 turns off the reverse flag 201 when the reverse flag 201 of the shared data 200 is on, and turns on the reverse flag 201 when the reverse flag 201 of the shared data 200 is off. The shared data transfer unit 44 determines that the failure to receive the ACK 60 means that a failure has occurred in the transfer destination terminal controller of the shared data 200. Therefore, the shared data transfer unit 44 reverses the transfer order of the shared data 200 so far and transfers the shared data 200 so that the shared data 200 can be transferred while avoiding the terminal controller in which the failure has occurred. In addition, the inversion flag 201 of the shared data 200 is inverted.

  Next, in S09, the shared data transfer unit 44 checks the inverted inversion flag 201 by the processing device. When the inverted inversion flag 201 is OFF, it means that the shared data 200 is transferred in accordance with the transfer order of the shared data 200 indicated in the shared data communication parameter 500. Therefore, the shared data transfer unit 44 has the next terminal controller Is acquired from the shared data communication parameter 500, and is determined as the address of a new transfer destination terminal controller. The shared data transfer unit 44 transfers the shared data 200 to the next terminal controller via the network, and returns the process to the reception check process of the ACK 60 in S06.

  When the inverted inversion flag 201 is on, it means that the shared data 200 is transferred according to the order in which the transfer order of the shared data 200 indicated in the shared data communication parameter 500 is inverted. The previous IP address of the previous terminal controller is acquired from the shared data communication parameter 500 and is determined by the address of the new transfer destination terminal controller and the processing device. The shared data transfer unit 44 transfers the shared data 200 to the previous terminal controller via the network, and returns the process to the reception check process of the ACK 60 in S06.

  As described above, according to the access control system 800 according to the first embodiment, the shared data 200 storing the door state information 202 of the door 5 is defined as a data packet, and each terminal controller defines the shared data 200 as its own. By adding (setting) the door state information 202 of the door 5 corresponding to the terminal controller, it is possible to allow all the terminal controllers to share the state of the other terminal controllers. Therefore, according to the access control system 800 according to the first embodiment, it is possible to perform door interlock control without providing a specific controller that collectively manages all terminal controllers of the system.

  Further, according to the access control system 800 according to the first embodiment, the terminal controller transfers the shared data 200 to the next terminal controller, and even if a certain period of time elapses, an ACK 60 (response signal) is received from the transfer destination terminal controller. If the terminal controller is not connected to the terminal controller other than the terminal controller other than the terminal controller that is stopped, the communication direction is reversed and the communication direction is reversed. Can share state.

  FIG. 6 is a diagram illustrating an example of hardware resources of the terminal controller 4 according to the first embodiment. In FIG. 6, the terminal controller 4 includes a system unit 910, a display device 901 having a CRT (Cathode / Ray / Tube) or LCD (liquid crystal) display screen, a keyboard 902 (Key / Board: K / B), a mouse 903, Hardware resources such as an FDD 904 (Flexible Disk Drive), a compact disk device 905 (CDD), a printer device 906, and a scanner device 907 are provided, and these are connected by cables and signal lines.

  The system unit 910 is a computer, and is connected to the facsimile machine 932 and the telephone 931 via a cable, and is connected to the Internet 940 via a local area network 942 (LAN) and a gateway 941.

  FIG. 7 is a diagram illustrating an example of hardware resources of the terminal controller 4 according to the first embodiment. In FIG. 7, the terminal controller 4 includes a CPU 911 (also referred to as a central processing unit, a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and a processor) that executes a program. The CPU 911 includes a ROM 913, a RAM 914, a communication board 915, a display device 901 having a CRT (Cathode / Ray / Tube) or LCD (liquid crystal) display screen, a keyboard 902, a mouse 903, an FDD904, a CDD905, and a printer device via a bus 912. 906, a scanner device 907, and a magnetic disk device 920 are connected to control these hardware devices. Instead of the magnetic disk device 920, a storage device such as an optical disk device or a memory card read / write device may be used.

  The RAM 914 is an example of a volatile memory. The storage media of the ROM 913, the FDD 904, the CDD 905, and the magnetic disk device 920 are an example of a nonvolatile memory. These are examples of a storage device or a storage unit.

  The communication board 915, the keyboard 902, the scanner device 907, the FDD 904, and the like are examples of an input unit and an input device.

  Further, the communication board 915, the display device 901, the printer device 906, and the like are examples of an output unit and an output device.

  The communication board 915 is connected to the facsimile machine 932, the telephone 931, the LAN 942, and the like. The communication board 915 is not limited to the LAN 942 and may be connected to the Internet 940, a WAN (wide area network) such as ISDN, or the like. When connected to a WAN such as the Internet 940 or ISDN, the gateway 941 is unnecessary.

  The magnetic disk device 920 stores an operating system 921 (OS), a window system 922, a program group 923, and a file group 924. The programs in the program group 923 are executed by the CPU 911, the operating system 921, and the window system 922.

  The program group 923 stores programs for executing functions described as “˜unit” and “˜means” in the description of the first embodiment. The program is read and executed by the CPU 911.

  In the file group 924, information, data, signal values, variable values, and parameters described as “determination results”, “calculation results of”, and “processing results of” in the description of the first embodiment, The items are stored as “˜file”, “˜database”, and “˜data” items. “˜file”, “˜database”, and “˜data” are stored in a recording medium such as a disk or a memory. Information, data, signal values, variable values, and parameters stored in a storage medium such as a disk or memory are read out to the main memory or cache memory by the CPU 911 via a read / write circuit, and extracted, searched, referenced, compared, Used for CPU operations such as calculation, calculation, processing, output, printing, and display. Information, data, signal values, variable values, and parameters are temporarily stored in the main memory, cache memory, and buffer memory during the CPU operations of extraction, search, reference, comparison, operation, calculation, processing, output, printing, and display. Is remembered.

  In addition, the arrows in the flowchart described in the description of the first embodiment mainly indicate input / output of data and signals, and the data and signal values are the RAM 914 memory, the FDD 904 flexible disk, the CDD 905 compact disk, and the magnetic disk device. It is recorded on a recording medium such as a 920 magnetic disk, other optical disk, mini disk, DVD (Digital Versatile Disk) or the like. Data and signals are transmitted online via a bus 912, signal lines, cables, or other transmission media.

  In addition, what is described as “to part” in the description of Embodiment 1 may be “to circuit”, “to device”, “to device”, “means”, and “to step”, It may be “˜procedure” or “˜processing”. That is, what is described as “˜unit” may be realized by firmware stored in the ROM 913. Alternatively, it may be implemented only by software, or only by hardware such as elements, devices, substrates, and wirings, by a combination of software and hardware, or by a combination of firmware. Firmware and software are stored as programs in a recording medium such as a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD. The program is read by the CPU 911 and executed by the CPU 911. That is, the program causes the computer to function as “to part” described below. Alternatively, the procedure or method of “to part” described below is executed by a computer.

  In the first embodiment, the access management system 800 having the following features has been described.

  The entrance / exit management system 800 according to Embodiment 1 includes an entrance / exit management system 800 (entrance / exit management device) in which a plurality of terminal controllers connected to a door are connected to an electric lock and a magnet sensor that detects a door state. By defining a data packet that represents the state of the electric locks and doors of all terminal controllers, each terminal controller communicates in a daisy chain while setting each state, so that all terminal controllers can communicate with other terminal controllers. It is characterized in that the state can be shared.

  The entry / exit management system 800 according to the first embodiment shows confirmation that the terminal controller has transmitted the shared data to the next terminal controller and that the shared data has been correctly received from the next terminal controller even after a certain period of time has elapsed. If the response signal is not received, the communication direction is reversed, the shared data is transmitted to the previous terminal controller, and the terminals other than the stopped terminal controller are communicated in a daisy chain with the communication direction reversed. Means is provided for enabling the state of the controller to be shared.

  In the description of the first embodiment, the shared data reception unit 41, the detection unit 42, the state setting unit 43, and the shared data transfer unit 44 (response confirmation reception unit) in the terminal controller 4 are configured as independent functional blocks. However, it may be a single functional block. Alternatively, the shared data transfer unit 44 and the response confirmation reception unit may be configured as independent functional blocks. Alternatively, these functional blocks may be configured in any other combination.

  The entry / exit management system 800 and the terminal controller 4 according to Embodiment 1 use hardware such as a processing device and a storage device, and information processing by software is specifically realized using hardware. . That is, the access control system 800 and the terminal controller 4 of the first embodiment described above are intended to realize the shared data transfer processing of the access control system 800 and the terminal controller 4 by the operation of hardware using natural laws. Yes, it corresponds to technical creation using the laws of nature.

1 is a system configuration diagram illustrating a system configuration of an access management system 800 according to Embodiment 1. FIG. 3 is a functional block configuration diagram showing a configuration of functional blocks of a terminal controller 4 according to Embodiment 1. FIG. It is a figure which shows the structure of the shared data 200 which concerns on Embodiment 1. FIG. It is a figure which shows the structure of the shared data communication parameter 500 which concerns on Embodiment 1. FIG. 6 is a flowchart showing shared data transfer processing of the terminal controller 4 according to Embodiment 1. FIG. 3 is a diagram illustrating an example of hardware resources of a terminal controller 4 according to Embodiment 1. FIG. 3 is a diagram illustrating an example of hardware resources of a terminal controller 4 according to Embodiment 1. FIG. It is a figure which shows the system configuration | structure of the conventional entrance / exit management system.

Explanation of symbols

  1 LAN, 2, 2a, 2b, 2n Magnet sensor, 3, 3a, 3b, 3n Electric lock, 4, 4a, 4b, 4n Terminal controller, 5, 5a, 5b, 5n Door, 10 Security status information, 20 Door status Information, 30 Electric lock status information, 41, 41a Shared data receiving unit, 42, 42a Detection unit, 43, 43a Status setting unit, 44, 44a Shared data transfer unit, 47, 47a Timer, 202, 202a, 202b, 202n Door Status information, 203 electric lock status, 204 door status, 205 security status, 500 shared data communication parameter, 500a transfer order information of terminal controller 4a, 501 ID number, 502 own IP address, 503 previous IP address, 504 next IP address 505 Timeout value 901 Display device 902 Keyboard 90 3 mouse, 904 FDD, 905 CDD, 906 printer device, 907 scanner device, 910 system unit, 911 CPU, 912 bus, 913 ROM, 914 RAM, 915 communication board, 920 magnetic disk device, 921 OS, 922 window system, 923 Program group, 924 file group, 931 telephone, 932 facsimile machine, 940 Internet, 941 gateway, 942 LAN.

Claims (6)

In an equipment management system provided with a plurality of terminal controllers provided corresponding to each equipment of a plurality of equipment, connected to a network,
The plurality of terminal controllers are
The shared data having the status information indicating the status of each of the plurality of facilities is transferred between the terminal controllers via the network,
Each terminal controller of the plurality of terminal controllers is
A detection unit for detecting state information indicating the state of the corresponding equipment;
A shared data receiving unit that receives the shared data from any other terminal controller other than the own terminal controller via the network;
A state setting unit for adding the state information detected by the detection unit to the shared data received by the shared data receiving unit;
A shared data transfer unit that transfers the shared data to which the state information of the equipment is added by the state setting unit to any other terminal controller other than the own terminal controller via the network ;
Transfer order information indicating a transfer order of the shared data transferred between the plurality of terminal controllers, at least the own terminal controller, a terminal controller ordered next to the own terminal controller, and ordered before the own terminal controller A transfer order information storage unit for storing transfer order information including a transfer order between the terminal controller and the terminal controller,
The shared data receiver is
Receiving the shared data in which an inversion flag indicating whether or not the transfer order of the shared data is reversed is turned on / off;
The shared data transfer unit
When the inversion flag set in the shared data is OFF, the transfer to transfer the shared data according to the transfer order of the shared data indicated in the transfer order information stored in the transfer order information storage unit The destination terminal controller is determined, the shared data is transferred to the determined transfer destination terminal controller, and when the inversion flag set in the shared data is on, the transfer order information storage unit stores the above Determining a transfer destination terminal controller to which the shared data is to be transferred according to an order obtained by inverting the transfer order indicated in the transfer order information, and transferring the shared data to the determined transfer destination terminal controller. Equipment management system characterized by The transfer order information storage unit is
A transfer order address table in which the addresses of the terminal controllers of the plurality of terminal controllers are ordered, and is ordered next to the address of the terminal controller and the address of the own terminal controller that are ordered at least before the address of the own terminal controller. A transfer order address table including the address of the terminal controller being stored as the transfer order information,
The shared data transfer unit
When the inversion flag set in the shared data is OFF, the address of the terminal controller ordered next to the address of the own terminal controller from the transfer order address table stored in the transfer order information storage unit Is determined as the address of the next terminal controller, the obtained address of the next terminal controller is determined as the address of the transfer destination terminal controller, the shared data is transferred to the next terminal controller, and set in the shared data. When the reverse flag is on, the address of the terminal controller ordered before the address of the own terminal controller is used as the address of the previous terminal controller from the transfer order address table stored in the transfer order information storage unit. Acquired and acquired the previous terminal controller Facility management system of claim 1, wherein the address is determined that the address of the transfer destination terminal controller, wherein the transfer of the shared data in the pre-terminal controller. Each terminal controller of the plurality of terminal controllers further includes:
When the shared data transfer unit transfers the shared data to the transfer destination terminal controller, a response check reception unit that receives response check information that is a response to the transferred shared data from the transfer destination terminal controller,
The shared data transfer unit
When the response confirmation information is not received by the response confirmation reception unit within a predetermined time after transferring the shared data, the flag of the inversion flag indicated by the received shared data is inverted,
When the inverted flag that has been inverted is off, the address of the next terminal controller is determined as the address of a new transfer destination terminal controller, the shared data is transferred to the next terminal controller,
3. The method according to claim 2 , wherein when the inverted flag is turned on, the previous terminal controller address is determined as an address of a new transfer destination terminal controller, and the shared data is transferred to the previous terminal controller. The facility management system described. In the terminal controller used in the equipment management system provided with a plurality of terminal controllers provided corresponding to each equipment of a plurality of equipment, connected to the network,
A detection unit for detecting state information indicating the state of the corresponding equipment;
Status information indicating the status of each of the plurality of facilities is added, and shared data transferred between the plurality of terminal controllers is received from any other terminal controller other than the own terminal controller via the network. A shared data receiving unit,
A state setting unit for adding the state information detected by the detection unit to the shared data received by the shared data receiving unit;
A shared data transfer unit that transfers the shared data to which the state information of the equipment is added by the state setting unit to any other terminal controller other than the own terminal controller via the network;
Transfer order information indicating a transfer order of the shared data transferred between the plurality of terminal controllers, at least the own terminal controller, a terminal controller ordered next to the own terminal controller, and ordered before the own terminal controller A transfer order information storage unit for storing transfer order information including a transfer order between the terminal controller and the terminal controller,
The shared data receiver is
Receiving the shared data in which an inversion flag indicating whether or not the transfer order of the shared data is reversed is turned on / off;
The shared data transfer unit
When the inversion flag set in the shared data is OFF, the transfer to transfer the shared data according to the transfer order of the shared data indicated in the transfer order information stored in the transfer order information storage unit The destination terminal controller is determined, the shared data is transferred to the determined transfer destination terminal controller, and when the inversion flag set in the shared data is on, the transfer order information storage unit stores the above Determining a transfer destination terminal controller to which the shared data is to be transferred according to an order obtained by inverting the transfer order indicated in the transfer order information, and transferring the shared data to the determined transfer destination terminal controller. A terminal controller featuring.   The transfer order information storage unit is
  A transfer order address table in which the addresses of the terminal controllers of the plurality of terminal controllers are ordered, and is ordered next to the address of the terminal controller and the address of the own terminal controller that are ordered at least before the address of the own terminal controller. A transfer order address table including the address of the terminal controller being stored as the transfer order information,
  The shared data transfer unit
  When the inversion flag set in the shared data is OFF, the address of the terminal controller ordered next to the address of the own terminal controller from the transfer order address table stored in the transfer order information storage unit Is determined as the address of the next terminal controller, the obtained address of the next terminal controller is determined as the address of the transfer destination terminal controller, the shared data is transferred to the next terminal controller, and set in the shared data. When the reverse flag is on, the address of the terminal controller ordered before the address of the own terminal controller is used as the address of the previous terminal controller from the transfer order address table stored in the transfer order information storage unit. Acquired and acquired the previous terminal controller The address determines the address of the transfer destination terminal controller transfers the shared data in the pre-terminal controller
The terminal controller according to claim 4.   The terminal controller further includes:
  When the shared data transfer unit transfers the shared data to the transfer destination terminal controller, a response check reception unit that receives response check information that is a response to the transferred shared data from the transfer destination terminal controller,
  The shared data transfer unit
When the response confirmation information is not received by the response confirmation reception unit within a predetermined time after transferring the shared data, the flag of the inversion flag indicated by the received shared data is inverted,
When the inverted flag that has been inverted is off, the address of the next terminal controller is determined as the address of a new transfer destination terminal controller, the shared data is transferred to the next terminal controller,
If the inverted inversion flag is ON, the previous terminal controller address is determined as the address of a new transfer destination terminal controller, and the shared data is transferred to the previous terminal controller.
The terminal controller according to claim 5.

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