TWI754902B - Communication management system, communication system, management method and program - Google Patents

Abstract

The present invention provides a communication management system, a communication system, a management method and a program that can more simply manage the state of a situation in which communication cannot be performed using power line communication. A communication management system (1) performs communication different from power line communication with a power line communication system including a plurality of communication terminals for power line communication. A communication management system (1) includes an acquisition unit (101), a request processing unit (102), and a notification unit (103). An acquisition unit (101) acquires communication information indicating that at least one communication terminal among the plurality of communication terminals cannot communicate using power line communication. When the acquisition unit (101) receives the communication information, the request processing unit (102) requests a response from one or more of the above-mentioned at least one communication terminal. The notification unit (103) performs notification corresponding to the communication information when the response information corresponding to the request is not received from the power line communication system.

Description

Communication management system, communication system, management method and program

The present disclosure generally relates to a communication management system, a communication system, a management method and a program, and more particularly, to a communication management system, a communication system, a management method and a program for managing a system for conducting power line communication.

Conventionally, a device setting system composed of a main machine and a plurality of sub-machines has been known (refer to Document 1 "Japanese Patent Laid-Open No. 2007-318551"). The master unit and the plurality of slave units are connected to the power line communication network.

In the device setting system of Document 1, it is detected whether each of the sub-devices can perform power line communication with other sub-devices, and the detection result is displayed.

In the device setting system of Document 1, the detection result of whether each of the sub-devices can perform power line communication with other sub-devices is displayed. Therefore, when communication is not possible in the device setting system, it is necessary to check the communication status for each slave. Therefore, it is desirable to manage the state more simply in the case where communication using power line communication is not possible.

The present disclosure has been made in view of the above-mentioned problems, and an object of the present disclosure is to provide a communication management system that can manage the state of the communication more simply when the communication cannot be performed using the power line communication. systems, communication systems, management methods and programs.

A communication management system of one aspect of the present disclosure performs communication different from the above-described power line communication with a power line communication system including a plurality of communication terminals that perform power line communication. The communication management system described above includes an acquisition unit, a request processing unit, and a notification unit. The obtaining unit obtains communication information indicating that at least one communication terminal among the plurality of communication terminals cannot communicate using the power line communication. When the acquisition unit receives the communication information, the request processing unit responds to a request from one or more communication terminals among the at least one communication terminal. The notification unit performs notification corresponding to the communication information when the response information corresponding to the request is not received from the power line communication system.

A communication system of one aspect of the present disclosure includes the above-described communication management system, and a power line communication system including a plurality of communication terminals that perform power line communication.

The management method of one aspect of the present disclosure is used by a communication management system that performs communication different from the above-described power line communication with a power line communication system including a plurality of communication terminals that perform power line communication. The above-mentioned management method includes an acquisition step, a request processing step, and a notification step. The obtaining step obtains communication information indicating that at least one communication terminal among the plurality of communication terminals cannot communicate using the power line communication. When the above-mentioned communication information is received in the above-mentioned obtaining step, the above-mentioned request processing step requests a response from one or more communication terminals among the at least one communication terminal. In the above-mentioned step of notifying, when no response information corresponding to the above-mentioned request is received from the above-mentioned power line communication system, a notification corresponding to the above-mentioned communication information is performed.

A program of one aspect of the present disclosure is a program for causing a computer to execute the above-mentioned management method.

1: Communication management system

2: Communication system

3: Power line communication system

3A: Power Line Communication System

10: Management device

11: Department of Communications

12: Output part

13: Memory Department

14: Control Department

20: Display terminal

30: Master machine (communication terminal, communication terminal for notification)

31: 1st Communications Department

32: 2nd Communications Department

33: Memory Department

34: Battery Department

35: Control Department

40: Slave (communication terminal)

40a~40j: Slave (communication terminal)

50: Repeater (communication terminal, communication terminal for notification)

50a: Repeater (communication terminal, communication terminal for notification)

50b: Repeater (communication terminal, communication terminal for notification)

51: Department of Communications

52: Memory Department

53: Battery Department

54: Control Department

101: Acquiring Department

102: Request Processing Department

103: Notification Department

301: Inspection Department

302: Switching Department

303: Processing Department

501: Inspection Department

502: Switching Department

503: Processing Department

E: handset

F: handset

F1: Box

F2: Box

G10: Group

G11: Group

M1: Screen

M2: Screen

NT1: Network

R1: The first display area

R2: 1st display area

R11: 2nd display area

R12: 3rd display area

R21: 2nd display area

R22: 3rd display area

S1: Step

S2: Step

S3: Step

S4: Steps

X: Repeater

Y: Repeater

FIG. 1 is a diagram illustrating a configuration of a management apparatus according to Embodiment 1 of the present disclosure.

FIG. 2 is a diagram illustrating the configuration of a communication system provided with the management device as described above.

FIG. 3 is a diagram illustrating the configuration of the main unit of the power line communication system included in the above communication system.

FIG. 4 is a diagram illustrating the operation of the management device as described above.

FIG. 5 is a diagram illustrating a screen of the management device notification as described above.

FIG. 6 is a diagram illustrating the configuration of a communication system according to Embodiment 2 of the present disclosure.

FIG. 7 is a diagram illustrating a configuration of a repeater of a power line communication system included in the communication system as described above.

FIG. 8 is a diagram illustrating a screen of notification by a management device included in the communication system as described above.

The respective embodiments and modified examples described below are merely examples of the present disclosure, and the present disclosure is not limited to the respective embodiments and modified examples. Even if it is other than these embodiment and a modification, it can make various changes according to a design etc. within the range which does not deviate from the technical idea of this disclosure.

(Embodiment 1)

Hereinafter, the communication management system and the communication system of the present embodiment will be described with reference to FIGS. 1 to 5 .

(1) Outline

As shown in FIG. 2 , the communication system 2 of the present embodiment includes a management device 10 as the communication management system 1 , and a power line communication system 3 .

As shown in FIG. 2 , the power line communication system 3 includes a main unit 30 and a plurality of (ten in the illustrated example) slave units 40 . In the power line communication system 3, power line communication is performed using a network (hereinafter, referred to as a "multi-hop network") that forms a multi-hop communication with the parent machine 30 as the top. The plurality of sub-machines 40 are smart meters that are respectively installed in the plurality of facilities. The parent machine 30 is installed in correspondence with a transformer that converts the voltage supplied to the area when the above-mentioned plural facilities are set as the area as the power supply destination. The main unit 30 and the plurality of child units 40 are connected to the same power line. The master unit 30 and the plurality of slave units 40 operate by receiving power supply from the same system power supply via a transformer. Furthermore, the base unit 30 operates by receiving the power supply from the battery unit 34 (see FIG. 3 ). If the master unit 30 detects that there is no power supply from the system power supply, that is, no power is supplied from the transformer, the power supply source is switched by receiving the power supply from the battery unit 34 . If the main unit 30 switches the power supply from the system power supply (in other words, the transformer) to the battery unit 34, it will display that there is no power supplied from the system power supply, that is, at least one of the main unit 30 and the plurality of slave units 40 cannot use the power line The communication information of the case of communication is transmitted to the management device 10 . For example, the communication information includes information showing the occurrence of a power outage as information showing that communication cannot be performed using power line communication. In other words, communication information includes information indicating that communication cannot be performed due to a power outage. In addition, when it is necessary to distinguish the situation of each of the plurality of sub-machines 40, it is recorded as sub-machines 40a, 40b,. ． ． , 40j. In addition, each of the main unit 30 and the plurality of slave units 40 corresponds to the communication terminal of the present disclosure. In particular, the base unit 30 corresponds to the notification communication terminal of the present disclosure.

The management device 10 acquires communication information from the parent machine 30 . When the management device 10 acquires the communication information, it requests a response to one or more slave machines 40 among the plurality of slave machines 40 under the parent machine 30 . For example, the management device 10 requests a response from one of the plurality of child machines 40 under the parent machine 30 . When the management device 10 does not receive the response information corresponding to the request from the power line communication system 3 (the slave 40 requesting a response), the management device 10 performs notification corresponding to the communication information, for example, a notification of the occurrence of a power failure.

(2) Composition

(2-1) Management device

As shown in FIG. 1 , the management device 10 includes a communication unit 11 , an output unit 12 , a storage unit 13 , and a control unit 14 .

The management apparatus 10 has, for example, a computer system having a processor and a memory. Then, when the processor executes the program stored in the memory, the computer system functions as the control unit 14 . The program executed by the processor is pre-recorded in the memory of the computer system, and can also be provided by being recorded in a non-transitory recording medium such as a memory card, or provided through an electrical communication line such as the Internet.

The communication unit 11 has a communication interface for communicating with the parent machine 30 by a communication method different from the power line communication. Specifically, the communication unit 11 has a communication interface for communicating with the parent machine 30 via the network NT1 such as the Internet.

The output unit 12 is connected to a display terminal 20 (see FIG. 2 ) having a display unit. The output unit 12 outputs the information of the notification (notification information) to the display terminal 20 in order to display the notification indicating the occurrence of the power failure on the display terminal 20 . The connection between the output unit 12 and the display terminal 20 may be a wired connection or a wireless connection. In addition, the display part of the display terminal 20 is a thin display device like a liquid crystal display or an organic EL (electroluminescence: electroluminescence) display.

The memory unit 13 is composed of ROM (Read Only Memory), RAM (Random Access Memory), or EEPROM (Electrically Erasable Programmable Read Only Memory) and other selected components.

The memory unit 13 memorizes the topology related to the multi-hop network for each of the parent machine 30 and the plurality of slave machines 40 included in the power line communication system 3 .

The topology memorized by the memory unit 13 includes the machine identification code of the corresponding machine (the parent machine or the slave machine 40 ). Furthermore, for each of the plurality of sub-machines 40, the corresponding topology includes the sub-machine 40 Path information related to the communication path to the parent machine 30 and the communication quality of the slave machine 40 .

The route information includes the device identification code of one or more slave devices 40 and the device identification code of the master device 30 existing on the communication route. For example, the path information about the communication path from the child machine 40g to the parent machine 30 includes the machine identification code of the parent machine 30, and the machine identification code of each of the child machines 40a, 40c, and 40g. The path information on the communication path from the sub-machine 40a to the main machine 30 includes the machine identification code of the main machine 30 and the machine identification code of the sub-machine 40a. In addition, in the power line communication system 3, when the update of the route information is periodically requested, the management device 10 receives the updated route information from the host computer 30, and updates the memorized route information.

The communication quality includes the communication speed between the corresponding slave 40 and the device (other slave 40 or master 30 ) that communicates with the slave 40 as a transmission source in one hop.

As shown in FIG. 1 , the control unit 14 includes an acquisition unit 101 , a request processing unit 102 , and a notification unit 103 .

The acquisition unit 101 acquires communication information from the master unit 30 , which is the uppermost communication terminal in the multi-hop network, through the communication unit 11 by means of communication different from the power line communication. Specifically, the acquisition unit 101 acquires communication information from the parent machine 30 via the network NT1 and the communication unit 11 .

When the acquisition unit 101 receives the communication information, the request processing unit 102 responds to the request of one or more communication terminals that cannot communicate by power line communication.

For example, the request processing unit 102 transmits request information requesting a response to one or more slave units 40 that are communicating via the parent unit 30 that transmits the communication information. That is, the request processing unit 102 transmits request information requesting a response to one or more slave units 40 that exist under the parent unit 30 that transmits the communication information in the multi-hop network. Specifically, the request processing unit 102 specifies one or more slave units 40 based on the plurality of communication qualities stored in the memory unit 13 , and transmits request information to the specified one or more slave units 40 via the network NT1 and the parent unit 30 . In Embodiment 1, the request processing unit 102 The slave unit 40 whose specific communication quality is high quality (the slave unit 40 with the highest communication speed) sends request information to the specified slave unit 40 via the network NT1 and the master unit 30 . Here, the request information further includes path information corresponding to the specified slave 40 .

The notification unit 103 performs notification corresponding to the communication information when the communication unit 11 does not receive the response information corresponding to the request from the slave 40 , which is the transmission destination of the request information. For example, after the notification unit 103 transmits the request information, when the communication unit 11 does not receive the response information from the slave 40 , which is the destination of the request information, within a specific time, the notification unit 103 performs notification corresponding to the communication information.

The notification unit 103 outputs, for example, a notification indicating the occurrence of a power failure to the display terminal 20 as a notification corresponding to the communication information, and displays the notification on the display terminal 20 .

The notification unit 103 includes one or more slave units 40 of the plurality of slave units 40 that respond to the request from the request processing unit 102 and a communication terminal associated with the one or more slave units 40 (for example, the slave unit 40 and the parent unit 30 that receive power supply from the same system power supply). ), the display terminal 20 displays the situation that communication is impossible due to a power failure.

In addition, the control unit 14 receives information (power information) related to the power used by the facility in which the slave unit 40 is installed from the smart meter, that is, the slave unit 40 via the network NT1 , and stores it in the memory unit 13 .

(2-2) Mother machine

As shown in FIG. 3 , the base unit 30 includes a first communication unit 31 , a second communication unit 32 , a memory unit 33 , a battery unit 34 , and a control unit 35 .

The host computer 30 has, for example, a computer system having a processor and a memory. Then, when the processor executes the program stored in the memory, the computer system functions as the control unit 35 . The program executed by the processor is pre-recorded in the memory of the computer system here, but it can also be recorded in the memory It can be provided by a non-transitory recording medium such as a card, or it can be provided through an electrical communication line such as a network.

The first communication unit 31 has a communication interface for communicating with the management device 10 . Specifically, the first communication unit 31 has a communication interface for communicating with the management device 10 via the network NT1 such as the Internet.

The second communication unit 32 has a communication interface for communicating with the slave 40 . Specifically, the second communication unit 32 has a communication interface for communicating with the slave 40 via a power line in a multi-hop network.

The memory unit 33 is constituted by a device selected from ROM, RAM, EEPROM, and the like.

The memory unit 33 stores the machine identification code of the own machine and the machine identification code of each of the plurality of slave machines 40 . The memory unit 33 stores, for each of the plurality of sub-machines 40, path information related to the communication path from the sub-machine 40 to the own machine (the parent machine 30). In addition, in the power line communication system 3 , when the route information is to be updated regularly, the host computer 30 stores the updated route information in the memory unit 33 . The base station 30 further transmits the updated route information to the management device 10 via the network NT1 and the first communication unit 31 .

The memory unit 33 memorizes the communication qualities of the slave units 40 for each of the plurality of slave units 40 .

The battery unit 34 is, for example, a capacitor. The main machine 30 usually receives power supply from the system power supply through the transformer provided with the main machine 30 , but when it cannot receive power supply from the system power supply, it receives power supply from the battery unit 34 . That is, the battery unit 34 is an emergency power source. In addition, the battery part 34 is not limited to a capacitor, and may be a lithium battery or a secondary battery.

As shown in FIG. 3 , the control unit 35 includes a detection unit 301, a switching unit 302, and processing Section 303.

The detection unit 301 detects the occurrence of a power failure. Specifically, the detection unit 301 determines whether or not power is supplied from the system power supply. The detection unit 301 determines that a power failure occurs when it is determined that there is no power supply from the system power supply.

The switching unit 302 switches the power supply from the system power source to the battery unit 34 when the detection unit 301 detects the occurrence of a power failure.

When the power supply from the system power source is switched to the battery unit 34, the processing unit 303 of the switching unit 302 transmits communication information to the management device 10 via the network NT1.

When the processing unit 303 receives the request information from the management device 10 via the network NT1, based on the route information included in the received request information, the processing unit 303 transmits the request information to the slave 40 which is the destination of the request information by power line communication.

When the processing unit 303 receives the response information from the slave 40 which is the transmission destination of the request information, it transmits the received response information to the management device 10 via the network NT1.

When the processing unit 303 receives the power information from the slave 40, it transmits the received power information to the management device 10 via the network NT1.

(2-3) Slave

The sub-machine 40 has, for example, a computer system including a processor and a memory. Furthermore, when the processor executes the program stored in the memory, the computer system functions as the sub-machine 40 . The program executed by the processor is pre-recorded in the memory of the computer system, and can also be provided by being recorded in a non-transitory recording medium such as a memory card, or provided through an electrical communication line such as the Internet.

The slave 40 stores path information related to the communication path from the slave to the master 30 .

The sub-machine 40 is, for example, a smart meter installed in a facility. The slave unit 40 transmits power information related to the power used by the facility in which the slave unit is installed to the parent unit 30 through power line communication. this At this time, the master machine 30 transmits the power information received from the slave machine 40 to the management device 10 via the network NT1. That is, the child machine 40 transmits the power information to the management device 10 via the parent machine 30 .

If the slave device 40 receives the request information from the management device 10 via the parent device 30 , the slave device 40 sends response information to the management device 10 through the parent device 30 based on the route information memorized by the slave device.

(3) Action

4, the operation|movement of the management apparatus 10 of this embodiment is demonstrated. Here, it is assumed that the parent machine 30 detects a power failure.

The acquisition unit 101 acquires communication information from the parent machine 30 via the network NT1 and the communication unit 11 (step S1).

When the acquisition unit 101 receives the communication information, the request processing unit 102 responds to one or more communication terminal requests that cannot communicate by power line communication (step S2). Specifically, the request processing unit 102 transmits the request information (eg, 40b) to one or more slave devices 40 subordinate to the parent device 30 that transmits communication information in the multi-hop network with high communication quality.

The notification unit 103 determines whether or not the response information has been received from the slave 40 which is the transmission destination within a predetermined time (step S3).

When it is determined that the response information has not been received from the slave 40 which is the transmission destination within a certain period of time (“NO” in step S3 ), the notification unit 103 performs notification processing (step S4 ). Specifically, the notification unit 103 outputs a notification indicating the occurrence of a power failure to the display terminal 20 and displays it on the display terminal 20 . The notification unit 103 displays, on the display terminal 20 , a terminal group including the slave units 40 for which the request processing unit 102 requests a response among the plurality of slave units 40 and the communication terminals associated with the slave units 40 . Here, the terminal group is constituted by the slave unit 40 and the master unit 30 that receive power from the same system power supply as the slave unit 40 which is the destination of the request information.

When it is determined that the response information has been received from the slave 40 which is the transmission destination within a specific time (“YES” in step S3 ), the notification unit 103 ends the processing.

Here, FIG. 5 shows an example of the screen M1 displayed by the display terminal 20 .

The screen M1 includes the first display area R1. In the 1st display area R1, the master machine 30 and the several slave machines 40 which comprise the power line communication system 3 are displayed in the shape (tree shape) of a multi-hop network (refer FIG. 5). Furthermore, in the first display area R1, a frame F1 surrounding the terminal group is displayed so that the user can recognize the terminal group including the slave 40 for which the request processing unit 102 has requested a response and the communication terminal associated with the slave 40. . Here, since the parent machine 30 and all the slave machines 40 under the parent machine 30 receive power from the same system power supply, the frame F1 is shown to surround the parent machine 30 and all the child machines 40 under the parent machine 30 .

Moreover, the screen M1 includes the second display area R11 and the third display area R12 within the frame F1. In the 2nd display area R11, the reason why the communication cannot be performed by the power line communication is displayed. Here, the reason why communication cannot be performed using the power line is a power failure, so the text "power failure" is displayed. In the third display area R12 , the date and time when the communication by power line communication was not possible, that is, the date and time when the communication information was received from the parent machine 30 is displayed.

(4) Advantages

As described above, the management apparatus 10 of the first embodiment performs communication different from the power line communication with the power line communication system including the plurality of communication terminals (the main unit 30 and the plurality of slave units 40). The management device 10 acquires communication information indicating that at least one communication terminal among the plurality of communication terminals cannot communicate using power line communication, for example, communication information indicating that communication is impossible due to a power failure. When the management device 10 receives the communication information, it requests a response from one or more communication terminals among the at least one communication terminal described above. The management device 10 performs notification corresponding to the communication information when the response information corresponding to the request is not received from the power line communication system.

According to this configuration, the management device acquires the information (communication information) when communication by power line communication is not possible. Therefore, the state can be managed more simply in a situation where communication is not possible using power line communication, compared to before.

(5) Variation example

(5-1) Variation 1

In the first embodiment, the management device 10 is configured to transmit request information to one or more slave units 40 (here, one slave unit 40 whose communication quality is high) belonging to the parent unit 30 that transmits communication information. However, it is not limited to this structure.

The management device 10 may also transmit the request information to the host computer 30 that transmits the communication information. For example, when the operation time of the battery unit 34 of the main unit 30 is short, if the capacitance of the battery unit 34 becomes empty after the main unit 30 transmits the communication information to the management device 10 , communication cannot be performed. At this time, the host computer 30 cannot receive the request information from the management device 10 . Therefore, the management device 10 cannot receive the response information from the parent machine 30 .

Therefore, when the operation time of the main machine 30 by the battery unit 34 is short, the management device 10 transmits the request information to the main machine 30, whereby it is possible to confirm whether or not a power failure has occurred.

(5-2) Variation 2

In the first embodiment, the base unit 30 is configured to detect the occurrence of a power failure, but it is not limited to this configuration.

The master unit 30 can also perform fault detection on each slave unit 40 subordinate to the master unit 30 in the multi-hop network. For example, the parent machine 30 confirms the existence of each of the child machines 40 . When the existence of the surviving sub-machine 40 is not confirmed, the main machine 30 transmits the information indicating the existence of the sub-machine 40 in failure to the management device 10 as communication information. At this time, the master unit 30 includes the identification code of the slave unit 40 whose existence is not confirmed in the communication information.

The request processing unit 102 of the management device 10 transmits request information to the slave device 40 whose existence has not been confirmed via the parent device 30 based on the identification code of the slave device 40 included in the communication information.

When the communication unit 103 of the management device 10 sends the request information until the communication unit 11 does not receive the response information within a specific time, it causes the display terminal 20 to display a notification indicating that there is a malfunctioning slave.

Furthermore, the main unit 30 can also perform self-failure diagnosis of the power line communication. If the master machine 30 detects the failure of the own machine in the power line communication as a diagnosis result, it sends the information displayed on the failure of the own machine to the management device 10 as communication information. At this time, the master device 30 includes the identification code of the own device in the communication information. When the management device 10 transmits the request information to the parent machine 30 and the communication unit 11 does not receive the response information within a specific time, the management device 10 causes the display terminal 20 to display a notification that the parent machine 30 has malfunctioned.

(Embodiment 2)

Here, the communication system 2 and the communication management system 1 according to the second embodiment will be described with reference to FIGS. 6 to 8 . In the second embodiment, the power line communication system differs from the first embodiment in that, in addition to the main unit and a plurality of slave units, the repeater is included. Hereinafter, the difference from Embodiment 1 will be mainly described. In addition, the same code|symbol is attached|subjected to the same structural element as Embodiment 1, and description is abbreviate|omitted suitably.

As shown in FIG. 6 , the power line communication system 3A according to the second embodiment includes a master unit 30, a plurality of (eight units in the example of the figure) slave units 40, and a plurality of units (two units in the example of the drawing) repeaters 50. When it is necessary to distinguish each of the repeaters 50, it is recorded as repeaters 50a and 50b. In addition, each of the main unit 30, the plurality of slave units 40, and the plurality of repeaters corresponds to the communication terminal of the present disclosure. In particular, each of the base unit 30 and the plurality of repeaters 50 corresponds to the notification communication terminal of the present disclosure.

The repeater 50 includes a communication unit 51 , a memory unit 52 , a battery unit 53 , and a control unit 54 as shown in FIG. 7 . The repeater 50 is installed in a transformer different from the transformer in which the base unit 30 is installed. The repeater 50 receives the power supply via a transformer provided in the main unit 30 through a path different from the path (first path) through which the base unit 30 receives the power supply. Here, the different paths are paths that do not pass through the transformer provided in the parent machine 30 . Furthermore, the paths through which the repeater 50a and the repeater 50b receive the power supply are different from each other. For example, the repeater 50a receives the power supply from the second path, and the repeater 50b receives the power supply from the third path. The slave units 40e and 40f existing under the repeater 50a receive power supply through the transformer provided in the repeater 50a. The slave units 40i and 40j existing under the repeater 50b receive power supply through the transformer provided in the repeater 50b.

The repeater 50 has, for example, a computer system having a processor and a memory. Then, when the processor executes the program stored in the memory, the computer system functions as the control unit 54 . The program executed by the processor is pre-recorded in the memory of the computer system, and can also be provided by being recorded in a non-transitory recording medium such as a memory card, or provided through an electrical communication line such as the Internet.

The communication unit 51 has a communication interface for communicating with the slave unit 40 and the master unit 30 via a power line in a multi-hop network.

The memory unit 52 is composed of a device selected from ROM, RAM, or EEPROM.

The memory unit 52 stores the machine identification code of the own machine and the path information related to the communication path from the own machine to the master machine 30 .

The battery unit 53 is, for example, a capacitor. The repeater 50 usually receives the power supply from the second path (or the third path), and receives the power supply from the battery part 53 when it cannot receive the power supply from the second path (or the third path). That is, the battery unit 53 is an emergency power source. In addition, the battery part 53 is not limited to a capacitor, and may be a lithium battery or a secondary battery.

As shown in FIG. 7 , the control unit 54 includes a detection unit 501 , a switching unit 502 , and a processing unit 503 .

The detection unit 501 detects the occurrence of a power failure. Specifically, the detection unit 501 determines whether or not power is supplied from the second path (or the third path). The detection unit 301 determines that a power failure occurs when it is determined that there is no power supply from the second path (or the third path).

The switching unit 502 switches the power supply source from the transformer provided in the device to the battery unit 53 when the detection unit 51 detects the occurrence of a power failure.

When the switching unit 502 switches the power supply source from the transformer provided in the device to the battery unit 53, the processing unit 503 transmits the communication information to the management device 10 via the host computer 30 and the network NT1.

When the processing unit 503 receives the request information from the management device 10 via the network NT1 and the main unit 30, the processing unit 503 transmits the request information to the slave unit 40 which is the destination of the request information by power line communication based on the route information included in the received request information.

When the processing unit 503 receives the response information from the slave device 40 which is the destination of the request information, it transmits the received response information to the management device 10 via the network NT1 and the main device 30 .

If the processing unit 503 receives power information from the subordinate sub-machine 40 in the multi-hop network, it sends the received power information to the management device 10 via the network NT1 and the master machine 30 .

The acquisition unit 101 of the management device 10 of the second embodiment further acquires communication information from the repeater 50 via the network NT1 and the communication unit 11 .

When the acquisition unit 101 receives the communication information sent by the repeater 50, the request processing unit 102 further requests the application of one or more communication terminals that cannot communicate by power line communication. answer.

For example, the request processing unit 102 transmits request information requesting a response to one or more slave units 40 that are communicating via the repeater 50 that transmits the communication information. In other words, the request processing unit 102 transmits request information requesting a response to one or more slave units 40 belonging to the repeater 50 that transmits communication information in the multi-hop network. Specifically, the request processing unit 102 specifies one or more slave units 40 based on the plurality of communication qualities stored in the memory unit 13 among the plurality of slave units 40 under the repeater 50 . The request processing unit 102 transmits the request information to the specified one or more slave units 40 via the network NT1, the main unit 30, and the repeater 50 that transmits the communication information. In the second embodiment, the request processing unit 102 specifies the slave 40 whose communication quality is high (the slave 40 with the highest communication speed) among the plurality of slaves 40 under the repeater 50 . The request processing unit 102 transmits request information to a specific slave unit 40 (the slave unit 40 with the highest communication speed) via the network NT1, the main unit 30, and the repeater 50 that transmits the communication information.

The notification unit 103 performs notification corresponding to the communication information when the communication unit 11 does not receive the response information corresponding to the request from the slave 40 , which is the transmission destination of the request information. For example, after the notification unit 103 transmits the request information, when the communication unit 11 does not receive the response information from the slave 40 , which is the destination of the request information, within a specific time, the notification unit 103 performs notification corresponding to the communication information.

The notification unit 103 outputs, for example, a notification indicating the occurrence of a power failure to the display terminal 20 as a notification corresponding to the communication information, and causes the display terminal 20 to display it.

The notification unit 103 includes one or more slave units 40 among the plurality of slave units 40 that are requested to respond by the request processing unit 102 and communication devices associated with the one or more slave units 40 (for example, the slave units 40 and the middle units that receive power supply from the same path). The terminal group of the relay 50) displays on the display terminal 20 that the communication cannot be performed due to a power failure.

In addition, as described above, the terminal group includes, for example, the slave 40 and the repeater 50 that receive power supply from the same system power supply. Therefore, when the repeater 50a detects the occurrence of a power failure, the repeater 50b may receive the power supply from the third path because the power supply source is different for the repeater 50b. Therefore, the request processing unit 102 preferably transmits the request information for requesting a response to one or more slave units 40 that are subordinate to the repeater 50 that transmits the communication information and are not subordinate to other repeaters 50 that are not subordinate to the subordinate repeater 50 . In other words, the request processing unit 102 preferably transmits request information to one or more slave units 40 that receive power supply from the transformer provided with the repeater 50 . For example, the request processing unit 102 requests the slaves 40 whose communication quality is high among the slaves 40 that belong to the repeater 50 that transmits the communication information and are not under one or more slaves 40 of the other repeaters 50 that are not under the slave repeater 50 . 40 Send request information.

In addition, the notification unit 103 displays on the display terminal 20 that the communication cannot be performed due to a power failure to the terminal group including the slave 40 and the repeater 50 that receive power supply from the same path. That is, the notification unit 103 has the following configuration: when another repeater is subordinate to the repeater 50 that transmits communication information, it does not include the other repeater 50 and the 1 subordinate to the other repeater 50 The other terminal group of the slaves 40 or more is to be notified as the terminal that cannot communicate due to a power failure.

For example, it is assumed that a group G10 (refer to FIG. 6 ) in which the repeater 50 a is the highest is formed in a multi-hop network, and the repeater 50 a transmits the communication information to the management device 10 via the master device 30 . In this case, there is another repeater 50b under the control of the repeater 50a, and a group G11 in which the repeater 50b is set as the highest is formed. The notification unit 103 does not use the repeater 50b, the slaves 40i, and 40j belonging to the group G11 included in the group G10 as a terminal to notify that communication cannot be performed due to a power failure. In other words, the notification unit 103 uses the repeater 50a, the slaves 40e, and 40f as the reason to be notified, except for the devices belonging to the group G11 included in the group G10. A terminal that cannot communicate due to a power outage.

Here, FIG. 8 shows a screen M2 that is an example (display example) of notification by the management device 10 in the case where the repeater 50 ( 50 a ) transmits the communication information to the management device 10 . Here, the request processing unit 102 requests a response to the slave 40f (slave 40F) which is subordinate to the repeater 50a (repeater X) and does not belong to the repeater 50b (repeater Y).

The screen M2 includes the first display area R2. In the first display area R2, the main unit 30 and the plurality of slave units 40 constituting the power line communication system 3 are displayed in the shape of a multi-hop network (tree shape) (see FIG. 8 ). Furthermore, in the first display area R2, the user can identify the slave 40F that includes the request response from the request processing unit 102 and the repeater 50 (repeater X) and the slave 40 ( A frame F2 surrounding the terminal group is displayed, for example, as a terminal group of the repeater 50a and the sub-machine 40) that receive the supply of power from the same path. Here, since the repeater X (repeater 50a) and the slave E (slave 40e) and slave F (slave 40f) under the repeater X receive power supply from the same path, frame F2 Displayed so as to surround Repeater X, Slave E and Slave F.

In addition, the screen M2 includes the second display region R21 and the third display region R22 within the frame F2. In the 2nd display area R21, the reason why the communication cannot be performed by the power line communication is displayed. Here, since the reason for communication that cannot be performed by power line communication is power failure, the text "power failure" is displayed. In the third display area R22, the date and time when the communication by the power line communication was not possible, that is, the date and time when the communication information was received from the parent machine 30 is displayed.

In addition, when the parent machine 30 detects the occurrence of a power failure and transmits the communication information to the management device 10, the processing unit 102 is requested to deal with one repeater 50 that belongs to the parent machine 30 and does not belong to the parent machine 30. Among the above slave devices 40, the slave device 40 whose communication quality is high quality transmits the request information. At this time, as a terminal group that cannot communicate due to a power failure, it includes the repeater 50 subordinate to the base station 30 that transmits the communication information and one or more units subordinate to the repeater 50. Terminals with more than one slave 40 are excluded. That is, at this time, the notification unit 103 does not include the repeater 50 and one or more slave units 40 to which the repeater 50 belongs when the repeater 50 belongs to the parent unit 30 that transmits the communication information. The other terminal groups are notified as terminals that cannot communicate due to a power failure.

As described above, the management device 10 of the second embodiment performs communication different from the power line communication with the power line communication system including the plurality of communication terminals (the main unit 30, the plurality of slave units 40, and the plurality of repeaters 50). The management device 10 acquires communication information indicating that at least one communication terminal among the plurality of communication terminals cannot communicate by using the power line communication, for example, indicates that communication information cannot be communicated due to a power failure. When the management device 10 receives the communication information, it requests a response from one or more communication terminals among the at least one communication terminal described above. The management device 10 performs notification corresponding to the communication information when the response information corresponding to the request is not received from the power line communication system.

According to this configuration, the management device acquires the information (communication information) when communication by power line communication is not possible. Therefore, the state can be managed more simply in a situation where communication is not possible using power line communication, compared to before.

In addition, in the second embodiment, the management device 10 is configured to control one or more slave devices 40 (here, one slave device 40 whose communication quality is high) to which the master device 30 or the repeater 50 that transmits communication information belongs. Send request information, but not limited to this configuration. The management device 10 may also transmit the request information to the master device 30 or the repeater 50 that transmits the communication information.

In addition, in Embodiment 2, although the base unit 30 is configured to detect the occurrence of a power failure, it is not limited to this configuration. The master unit 30 can perform fault detection on the slave units 40 subordinate to the master unit 30 in the multi-hop network. Similarly, the repeater 50 can also perform fault detection on the slaves 40 subordinate to the repeater 50 in the multi-hop network. For example, the master unit 30 and the repeater 50 confirm the existence of the slave units 40 that are subordinate to the own unit. When there is a sub-machine 40 whose survival is not confirmed, the detection The parent machine 30 or the repeater 50 of the sub-machine 40 that confirms survival transmits information indicating that the sub-machine 40 in failure exists to the management device 10 as communication information. At this time, the communication information includes the identification code of the sub-machine 40 whose existence is not confirmed. The request processing unit 102 transmits request information to the slave device 40 whose existence has not been confirmed via the parent device 30 based on the identification code of the slave device 40 included in the communication information. The notification unit 103 causes the display terminal 20 to display a notification indicating that there is a malfunctioning slave unit when the communication unit 11 does not receive the response information within a predetermined period of time after sending the request information.

Furthermore, the main unit 30 and the repeater 50 can also perform self-fault diagnosis of the power line communication. If the master machine 30 and the repeater 50 take the detection of the failure of the own machine in the power line communication as the diagnosis result, the information displayed on the failure of the own machine is sent to the management device 10 as communication information. At this time, the communication information includes the identification code of the master unit 30 or the repeater 50 that detected the failure. When the management device 10 transmits request information to the master unit 30 or the repeater 50 that has detected the failure, and the communication unit 11 does not receive the response information within a specific time, it displays a notification that the master unit 30 or the repeater 50 has failed. on the display terminal 20 .

(Other Variations)

Hereinafter, modification examples will be described. In addition, the modification examples described below can be applied in appropriate combination with each of the above-described embodiments.

In Embodiment 1, the power line communication of the power line communication system 3 is configured to be performed in the form of a multi-hop network, but it is not limited to this configuration. Power line communication can be performed in the form of other networks. That is, the relationship between the parent machine 30 and the plurality of child machines 40 may be formed by a tree structure in which the parent machine 30 is the highest. For example, each slave unit 40 may directly communicate with the slave unit 30 .

Similarly, in Embodiment 2, each slave unit 40 may directly communicate with the parent unit 30 or the repeater 50 .

In Embodiments 1 and 2, the management device 10 is configured to perform the operation on the display terminal 20 It corresponds to the notification of communication information, but is not limited to this configuration. The management device 10 can also perform notification corresponding to the communication information to information terminals such as mobile phones, smart phones, and tablet terminals, or to external servers.

In Embodiments 1 and 2, the management device 10 is configured to display the main machine 30 and the plurality of sub-machines 40 on the display terminal 20 in a multi-hop network shape (tree shape), but it is not limited to this configuration. The main machine 30 and the plurality of sub-machines 40 may also be displayed in a tabular form. At this time, the displayed table includes at least the terminal name, the reason for the inability to communicate, and the time of occurrence. The terminal name includes a terminal group including a slave 40 that requests a response from the request processing unit 102 among the plurality of slaves 40 and a communication terminal associated with the slave 40 (eg, the slave 40 and the master 30 that receive power supply from the same path). Non-communicable reasons include non-communicable reasons, such as "power failure". The occurrence time is the time when communication by power line communication is not possible, that is, the time when the communication information is received from the parent machine 30 .

In Embodiments 1 and 2, the acquisition unit 101 of the management device 10 may acquire communication information from other devices not included in the power line communication systems 3 and 3A.

In Embodiments 1 and 2, the display terminal 20 may be a configuration included in the management device 10 .

The above-mentioned Embodiments 1 and 2 are only one of various embodiments of the present disclosure. The above-mentioned Embodiments 1 and 2 can be variously changed according to design and the like, as long as the purpose of cost disclosure can be achieved. In addition, the same function as the communication management system 1 (management apparatus 10) may be embodied by a management method, a computer program, or a non-transitory recording medium in which the program is recorded. The management method of the communication management system 1 of one aspect is a communication management system 1 that performs communication different from the power line communication with the power line communication systems 3 and 3A including a plurality of communication terminals (for example, the main unit 30 and the slave unit 40 ) that perform the power line communication. use. The management method includes an acquisition step, a request processing step, and a notification step. Acquiring Step Acquiring shows that at least one communication terminal among the plurality of communication terminals cannot use power line communication. Communication information for communication. When the communication information is received in the obtaining step, the request processing step requests a response from one or more communication terminals among the at least one communication terminal described above. The notification step performs notification corresponding to the communication information when the response information corresponding to the request is not received from the power line communication system. A program of one form is a program for making a computer system function as the above-mentioned management method.

The executive body of the communication management system 1 or the management method of the present disclosure includes a computer system. In a computer system, the processor and memory as hardware are the main components. The function of the communication management system 1 of the present disclosure is realized by the processor executing the program recorded in the memory of the computer system. The program can be pre-recorded in the memory of the computer system, provided through an electrical communication line, or provided by being recorded in a non-transitory recording medium such as a memory card, optical disc, hard disk drive, etc., which can be read by the computer system. The processor of the computer system is composed of one to a plurality of electronic circuits including a semiconductor integrated circuit (IC: Integrated Circuit) or a large-scale integrated circuit (LSI: Large-scale integrated circuit). The integrated circuits such as IC or LSI mentioned here are called in different ways depending on the degree of integration, including system LSI, VLSI (Very Large Scale Integration: very large integrated circuit), or ULSI (Ultra Large Scale Integration: extremely large integrated circuit). Large-scale integrated circuits) integrated circuits. Furthermore, FPGAs (Field-Programmable Gate Array: Field-Programmable Gate Array) that can be programmed after LSI manufacture, or logic devices that can reconfigure the bonding relationship within the LSI or reconfigure the circuit divisions within the LSI can also be used. Adopted as a processor. A plurality of electronic circuits may be assembled on one chip, or may be distributed on a plurality of chips. A plurality of wafers may be assembled in one device, or may be distributed in a plurality of devices. A computer system as used herein includes a microcontroller having more than one processor and more than one memory. Therefore, the microcontroller is also composed of one to a plurality of electronic circuits including semiconductor integrated circuits or large-scale integrated circuits.

Furthermore, it is not necessary to integrate a plurality of functions of the communication management system 1 into one casing. The necessary configuration of the communication management system 1, and the configuration requirements of the communication management system 1 may be distributed in a plurality of housings. Furthermore, at least a part of the functions of the communication management system 1 , for example, a part of the functions of the management device 10 can also be realized by the cloud (cloud computing).

On the contrary, in Embodiments 1 and 2, the functions of at least a part of the communication management system 1 dispersed in a plurality of apparatuses may be integrated into one casing.

(summary)

As described above, the communication management system (1) of the first aspect is a power line communication system (3, 3A) A communication management system that performs communication other than power line communication. A communication management system (1) includes an acquisition unit (101), a request processing unit (102), and a notification unit (103). An obtaining unit (101) obtains communication information indicating that at least one communication terminal among the plurality of communication terminals cannot communicate using power line communication. The request processing unit (102) responds to a request for one or more communication terminals among the at least one communication terminal described above when the obtaining unit (101) obtains the communication information. The notification part (103) performs notification corresponding to the communication information when the response information corresponding to the request is not received from the power line communication system (3, 3A).

According to this configuration, when communication by power line communication is impossible, the communication management system (1) acquires communication information indicating that communication by power line communication is impossible, and performs notification corresponding to the communication information, so that power line communication can be managed more simply Status of the system (3, 3A).

The communication management system (1) of the second aspect is the first aspect, wherein the plurality of communication terminals includes one or more communication terminals configured to operate with electric power supplied from the battery unit (eg, the battery unit 34 and the battery unit 35 ). The communication terminal for notification (for example, the main unit 30, the repeater 50). If each of one or more communication terminals for notification detects a power failure, the operation of the electric power supplied from the battery unit is started, The information indicating that the communication cannot be communicated due to a power outage will be sent as communication information. The at least one communication terminal described above is configured to be able to communicate with a notification communication terminal that transmits communication information. A request processing unit (102) transmits request information for requesting a response to the at least one communication terminal communicating with the above-mentioned at least one communication terminal through the communication terminal for notification of transmitting the communication information. The notification part (103) notifies that the communication cannot be communicated due to a power failure.

According to this configuration, when communication is impossible due to a power failure, the failure to communicate due to a power failure is notified, so that the state of the power line communication system (3, 3A) can be managed more easily.

The communication management system (1) of the third aspect is in the second aspect, wherein a plurality of communication terminals include a communication terminal that receives the power supply from the communication terminal (for example, the repeater 50a) that transmits the communication information and receives the power supply. Other notification terminals (eg, repeater 50b) of different paths are the communication terminals for power line communication. The notification unit (103) does not notify a terminal group (for example, group G11) including a terminal belonging to another communication terminal for notification among the above-mentioned at least one communication terminal as a terminal that cannot communicate due to a power failure.

According to this configuration, with respect to the power line communication system (3, 3A), the communication terminal for notification can be managed according to the path for receiving the power supply.

The communication management system (1) of the fourth aspect is the second or third aspect, wherein power line communication is performed in a multi-hop network. An acquisition unit (101) acquires communication information from the highest-level communication terminal of the multi-hop network by communication different from the power line communication.

According to this configuration, the communication management system (1) obtains communication information from the highest-level communication terminal in the multi-hop network, and always obtains communication information from one communication terminal. Thereby, the increase of the traffic volume of the communication between the communication management system (1) and the power line communication system (3, 3A) can be avoided.

The communication management system (1) of the fifth aspect is the fourth aspect, further comprising: Each of the plurality of communication terminals memorizes a memory section (13) that includes a topology that identifies the identification information of the communication terminal.

According to this configuration, it is possible to easily specify the communication terminal to which the request information is to be transmitted.

The communication management system (1) of the sixth aspect is the fifth aspect, wherein the topology includes the communication quality of the power line communication for each of the plurality of communication terminals. A request processing unit (102) transmits request information to one or more communication terminals selected based on the communication quality corresponding to the at least one communication terminal.

According to this configuration, request information is transmitted to one or more communication terminals selected based on the communication quality. For example, when the request information is sent to one or more communication terminals with a high communication speed, when the communication cannot be performed due to power line communication, it is a case of misidentification, compared with the time when the request information is sent to the communication terminal with a low communication speed. The likelihood of requesting information is high. Therefore, by transmitting the request information to one or more communication terminals selected based on the communication quality, it is possible to improve the accuracy of judging whether or not the communication is not possible due to the power line communication.

The communication management system (1) of the seventh aspect is in the sixth aspect, wherein the request processing unit (102) transmits the request information to one communication terminal selected based on the corresponding communication quality of the at least one communication terminal.

According to this configuration, by transmitting the request information to one communication terminal selected based on the communication quality, it is possible to improve the accuracy of judging whether or not it is a misrecognition when the communication cannot be performed by the power line communication.

The communication management system (1) of the eighth aspect is according to any one of the second to seventh aspects, wherein the request processing unit (102) sends a notification to a communication terminal (for example, the main unit 30, the repeater 50) for transmitting the communication information Request information. The notification part (103) uses a notification message for not receiving the notification information sent to the sending communication In the case of response information corresponding to the request information of the communication terminal, a notification corresponding to the communication information is performed.

According to this configuration, by transmitting the request information to the communication terminal for notification, it is possible to improve the accuracy of judging whether or not it is a misrecognition when the communication cannot be performed by the power line communication.

The communication management system (1) of a ninth aspect is in any one of the second to eighth aspects, wherein the acquisition unit (101) acquires communication information from one or more notification communication terminals that detect a power outage.

According to this configuration, since the communication information is obtained from the communication terminal for notification of power failure detection, the reliability of the obtained communication information can be improved.

The communication management system (1) of the tenth aspect is according to any one of the second to ninth aspects, wherein the notification unit (103) includes the communication of one or more of the plurality of communication terminals to which the request processing unit (102) requests a response. The terminal and the terminal group of the communication terminals associated with one or more communication terminals for which the request processing unit (102) requests a response, notify the situation that communication is impossible due to a power failure.

According to this configuration, it is possible to notify the terminal group as a unit that the communication cannot be communicated due to a power failure.

The communication system (2) of the eleventh aspect includes: the communication management system (1) of any one of the first to tenth aspects; and a power line communication system (3, 3A) including a plurality of communication terminals for performing power line communication .

According to this configuration, when communication cannot be performed by power line communication, the communication management system (1) obtains communication information indicating that communication by power line communication cannot be used, and performs notification corresponding to the communication information, so that the power line communication system can be managed more simply (3, 3A) status.

The management method of the twelfth aspect consists of a plurality of units that communicate with power lines including A management method of a communication management system (1) in which a power line communication system (3, 3A) of a communication terminal (eg, a master unit 30, a plurality of slave units 40, and a repeater 50) performs communication different from power line communication. The management method includes an acquisition step, a request processing step, and a notification step. The obtaining step obtains communication information indicating that at least one communication terminal among the plurality of communication terminals cannot communicate through power line communication. The request processing step requests a response to one or more communication terminals among the at least one communication terminal described above when the communication information is received in the obtaining step. The notification step performs notification corresponding to the communication information when the response information corresponding to the request is not received from the power line communication system (3, 3A).

According to this management method, when communication by power line communication is not possible, communication information indicating that communication by power line communication cannot be used is obtained, and a notification corresponding to the communication information is performed, so that the power line communication system can be managed more simply (3, 3A) state.

The program of the 13th aspect is a program for causing the computer to execute the management method of the 12th aspect.

According to this program, when communication by power line communication is not possible, communication information indicating that communication by power line communication cannot be used is obtained, and a notification corresponding to the communication information is performed, so that the management of power line communication systems (3, 3A) can be more easily managed. condition.

1: Communication management system

10: Management device

11: Department of Communications

12: Output part

13: Memory Department

14: Control Department

101: Acquiring Department

102: Request Processing Department

103: Notification Department

Claims (9)

A communication management system that performs communication different from the above-mentioned power line communication with a power line communication system including a plurality of communication terminals that perform power line communication, and includes an acquisition unit that acquires and indicates that at least one of the plurality of communication terminals communicates Communication information that the terminal cannot communicate by using the above-mentioned power line communication; the request processing unit, which, when the above-mentioned obtaining unit obtains the above-mentioned communication information, responds to the request of one or more communication terminals among the above-mentioned at least one communication terminal; When the response information corresponding to the above-mentioned request is received from the above-mentioned power line communication system, a notification corresponding to the above-mentioned communication information is performed; The topology of identification information; wherein the above-mentioned power line communication is performed in a multihop network; the above-mentioned plurality of communication terminals include: one or more communication terminals for notification constituted to operate with electric power supplied from a battery unit; Each of the above-mentioned one or more communication terminals for notification is: when a power failure is detected, it starts to operate with the electric power supplied from the above-mentioned battery unit, and transmits information indicating that communication cannot be made due to the above-mentioned power failure as the above-mentioned communication information; The at least one communication terminal is configured to be able to communicate with the notification communication terminal that transmits the communication information; the request processing unit is configured to communicate with the at least one communication terminal that communicates with the notification communication terminal that transmits the communication information. The communication terminal sends the request information requesting the above-mentioned response; the above-mentioned notification department: notifies that the communication cannot be communicated due to the above-mentioned power failure; The above-mentioned obtaining unit is: to obtain the above-mentioned communication information from the communication terminal in the uppermost position in the above-mentioned multi-hop network by the above-mentioned communication different from the above-mentioned power line communication; The communication quality of the above-mentioned request processing unit is to send the above-mentioned request information to one or more communication terminals selected according to the corresponding communication quality among the at least one communication terminal. The communication management system of claim 1, wherein the plurality of communication terminals include a communication terminal that performs the power line communication with other communication terminals for notification, and the other communication terminals for notification are from the communication terminal for notification that transmits the communication information. In the case where the power supply is received through a path different from that for receiving the power supply, the notification unit shall not consider a terminal group including a terminal subordinate to the other communication terminal for notification among the at least one communication terminal described above, as being unable to communicate due to the power failure. the terminal to notify. The communication management system according to claim 1 or 2, wherein the request processing unit transmits the request information to one communication terminal selected based on the communication quality corresponding to the at least one communication terminal. The communication management system according to claim 1 or 2, wherein the request processing unit transmits the request information to the notification communication terminal that transmits the communication information; The notification unit performs notification corresponding to the communication information when the response information corresponding to the request information transmitted to the notification communication terminal that transmits the communication information has not been received. The communication management system according to claim 1 or 2, wherein the obtaining unit obtains the communication information from a communication terminal for notification that detects a power outage among the one or more communication terminals for notification. The communication management system according to claim 1 or 2, wherein the notification unit includes the one or more communication terminals that request the response from the request processing unit among the plurality of communication terminals, and the request processing unit for the above-mentioned 1 The terminal group of the communication terminals associated with the communication terminals of more than one station shall notify the situation that the communication cannot be communicated due to the above-mentioned power failure. A communication system comprising: the communication management system of any one of claims 1 to 6; and a power line communication system including a plurality of communication terminals that perform power line communication. A management method used in a communication management system that performs communication different from the above-mentioned power line communication with a power line communication system including a plurality of communication terminals that perform power line communication, further comprising: an obtaining step of obtaining a representation indicating the plurality of communication terminals. Communication information that at least one of the communication terminals cannot communicate using the above-mentioned power line communication; a request processing step of responding to a request from at least one communication terminal among the at least one communication terminal when the communication information is received in the obtaining step; and a notification step of not receiving a request corresponding to the request from the power line communication system In the case of response information, a notification corresponding to the communication information is performed; the communication management system includes a memory unit that memorizes: for each of the plurality of communication terminals, the topology including the identification information for identifying the communication terminal; The above-mentioned power line communication is performed in a multi-hop network; the above-mentioned plurality of communication terminals include: one or more notification communication terminals configured to operate with electric power supplied from the battery unit; and one or more notification communication terminals described above Each of them is: when a power failure is detected, the operation with the power supplied from the battery unit is started, and the information indicating that the communication cannot be communicated due to the power failure is transmitted as the communication information; the above at least one communication terminal is: constituted In order to be able to communicate with the notification communication terminal that transmits the communication information; in the request processing step, the request information for requesting the response is transmitted to the at least one communication terminal that is communicating through the notification communication terminal that transmits the communication information. In the above notification step, it is notified that the communication cannot be communicated due to the above-mentioned power failure; in the above-mentioned obtaining step, the above-mentioned communication information is obtained from the uppermost communication terminal in the above-mentioned multi-hop network through the above-mentioned communication different from the above-mentioned power line communication; The above-mentioned topology is : The communication quality of the power line communication is included for each of the plurality of communication terminals; in the request processing step, the above-mentioned request is sent to one or more communication terminals selected according to the corresponding communication quality among the at least one communication terminal. Information. A program for causing a computer to execute the management method of claim 8.

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