JP2018142901A - Communication system and method for monitoring communication devices in communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication system that can monitor the state of a desired communication device from a plurality of communication devices, and a method for monitoring the communication devices on the communication system.SOLUTION: A server comprises a server and a terminal. The server includes: a communication state management part that selects, from a plurality of pieces of information on the state of communication of first to N-th communication devices, state information designated by a communication state request signal via a communication network; an image control part that transmits, to the terminal, a monitored image signal that indicates the first to N-th icons associated with the first to N-th communication state information, and indicates a monitored image in which predetermined information is added to an area of the icon, of the first to N-th icons, associated with the communication state information corresponding to a communication device in which communication abnormality occurs, and a communication management image signal that indicates the communication state information selected by the communication state management part; and a communication abnormality detection part that detects, from the communication devices, a communication device in which communication abnormality occurs. The terminal includes a display part that displays the monitored image and communication management image, and when receiving an icon selection operation, transmits, to the server, a communication state request signal designating communication state information corresponding to the selected icon.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a communication system and a method for monitoring a communication apparatus in a communication system including a plurality of communication apparatuses.

  Currently, IoT (Internet of Things) that detects the state of a natural phenomenon or an artificial object, for example, that transfers information data acquired by a so-called sensor to a cloud server or the like via the Internet has become widespread (for example, Patent Document 1). Such a platform using IoT includes a plurality of sensors and a communication device that transmits information data acquired by each sensor to a cloud server.

Japanese Patent Laid-Open No. 2006-163087

  By the way, in the above-mentioned IoT platform, the vendor of the communication device connected to the sensor may be different for each sensor.

  Therefore, in order to monitor the current state of each communication device, for example, whether or not the communication is abnormal, management software provided by the vendor for each communication device (hereinafter also referred to as management S / W) It is activated by a computer or the like.

  For example, the user of the IoT platform activates the management S / W provided by the vendor of the communication device to be monitored, and based on the monitoring image displayed by the activation of the management S / W, the current communication device current Monitor the communication status.

  Note that the management S / W may be different for each vendor that provides the management S / W even if the communication device is the same model, and therefore, the form of the monitoring image is also different for each communication device. There is.

  Therefore, the user must recognize the correspondence between each communication device and the management S / W and communication management image corresponding to the communication device.

  In addition, when the management S / W is different for each communication device, in order to know the communication state of the communication device in which the communication abnormality has occurred among the plurality of communication devices, the user sets the plurality of management S / Ws. You must start and check each management image. Therefore, there is a problem that the operation is troublesome or there is a risk of erroneous operation.

  The present invention provides a communication system capable of confirming the communication state of a desired communication device among a plurality of communication devices with simple operation and without erroneous operation, and a communication device monitoring method in the communication system. With the goal.

  A communication system according to the present invention includes first to Nth (N is an integer of 2 or more) communication devices connected to a communication network, a server connected to the communication network, and a terminal that communicates with the server. The server detects communication states of the first to Nth communication devices via the communication network, obtains first to Nth communication state information, and receives a communication state request signal A communication state management unit for selecting communication state information designated by the communication state request signal from the first to Nth communication state information, and the first to Nth communication state information via the communication network. A communication abnormality detection unit that detects a communication apparatus in which a communication abnormality has occurred among communication apparatuses, and first to Nth icons associated with the first to Nth communication state information, and the first to Nth icons. The communication apparatus in which the communication abnormality occurs in the Nth icon A monitoring image signal representing a monitoring image in which predetermined character information is added in the area of the icon associated with the corresponding communication state information, and a communication representing the communication state information selected by the communication state management unit An image control unit that transmits a management image signal to the terminal, and the terminal includes a display unit that displays the monitoring image based on the monitoring image signal and the communication management image based on the communication management image signal, The communication state request signal for designating the communication state information corresponding to the selected icon when an operation for selecting one icon from the first to Nth icons included in the monitoring image is received. Send to server.

  The communication device monitoring method in the communication system according to the present invention includes first to Nth (N is an integer of 2 or more) communication devices connected to a communication network, and a server connected to the communication network. A communication device monitoring method in a communication system including a terminal that communicates with the server, wherein the server detects a communication state of the first to Nth communication devices via the communication network. When the first to Nth communication status information is obtained and the communication status request signal is received, the communication status information designated by the communication status request signal is selected from the first to Nth communication status information. The first to Nth communication devices that detect a communication abnormality among the first to Nth communication devices via the communication network and are associated with the first to Nth communication state information are detected. And the first to Nth icons A monitoring image signal representing a monitoring image in which predetermined character information is added to an area of the icon associated with the communication state information corresponding to the communication device in which the communication abnormality has occurred, and the communication A communication management image signal representing the communication state information selected by the state management unit is transmitted to the terminal, and the terminal displays the monitoring image based on the monitoring image signal and the communication management image based on the communication management image signal. The communication status request that specifies the communication status information corresponding to the selected icon when an operation for selecting one icon from the first to Nth icons included in the monitoring image is received. Send a signal to the server.

  According to the present invention, the user of the terminal adds character information from the monitoring image including the first to Nth icons associated with the first to Nth communication state information corresponding to each communication device. By confirming the icon, it is possible to know the communication status information that prioritizes acquisition.

  Here, when the user selects an icon to which character information is added as described above from the first to Nth icons, a communication management image associated with the selected icon is displayed. .

  Therefore, even if the communication management software responsible for generating the communication state information of each communication device is different for each of the plurality of communication devices, the user can perform simple operations without misoperation. It becomes possible to confirm the communication state of a desired communication device.

1 is a block diagram showing a configuration of a communication system 100 according to the present invention. 3 is a block diagram showing an internal configuration of a monitoring unit 55. FIG. It is a figure which shows an example of the monitoring image DM. 4 is a communication flow diagram illustrating an example of operations performed between the sensor 11, the first communication device (21, 31), the monitoring unit 55, and the HMI terminal 60. FIG. FIG. 6 is a communication flow diagram illustrating an example of operations performed between the sensor 12, the second communication device (22, 32), the monitoring unit 55, and the HMI terminal 60. 6 is a communication flow diagram illustrating an example of operations performed between a communication state management unit 510 and an integrated image control unit 504 included in a monitoring unit 55 and an HMI terminal 60. FIG.

  FIG. 1 is a block diagram showing a configuration of a communication system 100 according to the present invention.

  As shown in FIG. 1, the communication system 100 includes sensors 11 to 14, sub-communication units 21 to 24, main communication units 31 to 33, a gateway 40, an IoT (Internet of Things) server 50, and an HMI (Human Machine Interface). ) Including the terminal 60;

  Each of the sensors 11 to 14 detects an amount related to the state and property of an object or a physical phenomenon. The sensors 11 to 14 include, for example, a camera or a microphone that acquires video and audio in addition to a temperature sensor, a humidity sensor, a magnetic sensor, and the like.

  The sensor 11 supplies a detection signal SD1 representing its detection result to the sub-communication unit 21. The sub communication unit 21 transmits the detection signal SD1 to the main communication unit 31. The main communication unit 31 supplies the gateway 40 with a sensor signal DX1 representing the received detection signal SD1 and the address of the IoT server 50 that is the destination.

  In addition, the main communication unit 31 includes the sub communication unit 21 and the sub communication unit 21 according to software provided by the vendor of the sub communication unit 21 and the main communication unit 31 (hereinafter referred to as a first vendor). It is determined whether an abnormality has occurred in communication between the main communication units 31 or whether a failure has occurred in the sub communication unit 21. Here, when it is determined that a communication abnormality has occurred between the sub-communication unit 21 and the main communication unit 31 or a failure has occurred in the sub-communication unit 21, the main communication unit 31 is employed by the first vendor. The communication abnormality detection signal E1 having a signal format in accordance with the communication specifications is supplied to the gateway 40.

  The sensor 12 supplies a detection signal SD2 representing its detection result to the sub-communication unit 22. The sub communication unit 22 transmits the detection signal SD2 to the main communication unit 32. The main communication unit 32 supplies the gateway 40 with a sensor signal DX2 that represents the received detection signal SD2 and the address of the IoT server 50 that is the destination.

  The main communication unit 32 communicates between the main communication unit 32 and the sub communication unit 22 in accordance with S / W provided by the sub communication unit 22 and the vendor of the main communication unit 32 (hereinafter referred to as a second vendor). It is determined whether or not an abnormality has occurred or whether or not a failure has occurred in the sub-communication unit 22. Here, when it is determined that a communication abnormality has occurred between the sub-communication unit 22 and the main communication unit 32 or that the sub-communication unit 22 has failed, the main communication unit 32 determines that the second vendor Is supplied to the gateway 40 with a communication abnormality detection signal E2 having a signal format in accordance with the communication specification adopted by the.

  The sensor 13 supplies a detection signal SD3 representing its detection result to the sub-communication unit 23. The sub-communication unit 23 transmits the detection signal SD3 to the main communication unit 33.

  The sensor 14 supplies a detection signal SD4 representing its own detection result to the sub-communication unit 24. The sub communication unit 24 transmits the detection signal SD4 to the main communication unit 33.

  The main communication unit 33 supplies the gateway 40 with a sensor signal DXB indicating the received detection signals SD3 and SD4 and the address of the IoT server 50 that is the destination.

  In addition, the main communication unit 33 performs communication between the sub communication unit 23 and the main communication unit 33 in accordance with S / W provided by the sub communication unit 23 and the vendor of the main communication unit 33 (hereinafter referred to as a third vendor). It is determined whether or not an abnormality has occurred or whether or not a failure has occurred in the sub-communication unit 23. Here, when it is determined that a communication abnormality has occurred between the sub-communication unit 23 and the main communication unit 33 or that the sub-communication unit 23 has failed, the main communication unit 33 is A communication abnormality detection signal E3 having a signal format according to the adopted communication specification is supplied to the gateway 40.

  In addition, the main communication unit 33 has an abnormality in communication between the sub communication unit 24 and the main communication unit 33 or a failure has occurred in the sub communication unit 24 in accordance with the S / W provided by the third vendor. It is determined whether or not. Here, when it is determined that a communication abnormality has occurred between the sub-communication unit 24 and the main communication unit 33, or a failure has occurred in the sub-communication unit 24, the main communication unit 33 is employed by the third vendor. The communication abnormality detection signal E4 having a signal format in accordance with the communication specification is supplied to the gateway 40.

  When the gateway 40 receives at least one of the sensor signals DX1, DX2, DXB, and communication abnormality detection signals E1 to E4, the gateway 40 converts the at least one signal into a protocol corresponding to the network NWa. The network NWa is composed of, for example, a WAN (Wide Area Network). The gateway 40 transmits a signal obtained by performing the protocol conversion on the sensor signals DX1, DX2, DXB or the communication abnormality detection signals E1 to E4 to the destination address, that is, the IoT server 50 via the network NWa.

  As described above, the communication abnormality detection signal E1 is a signal corresponding to the first communication device (21, 31) including the sub communication unit 21 and the main communication unit 31. The communication abnormality detection signal E2 is a signal corresponding to the second communication device (22, 32) including the sub-communication unit 22 and the main communication unit 32. The communication abnormality detection signal E3 is a signal corresponding to the third communication device (23, 33) including the sub communication unit 23 and the main communication unit 33. The communication abnormality detection signal E4 is a signal corresponding to the fourth communication device (24, 33) including the sub communication unit 24 and the main communication unit 33.

  When the IoT server 50 receives the sensor signals DX1, DX2, and DXB via the network NWa, the detection signals SD1 to SD4 included in the sensor signals DX1, DX2, and DXB are individually databased (not shown). To accumulate.

  The IoT server 50 includes a monitoring unit 55.

  FIG. 2 is a block diagram illustrating an example of the internal configuration of the monitoring unit 55. As shown in FIG. 2, the monitoring unit 55 includes abnormality detection units 501a to 501c, log storage units 502a to 502c, log continuous search units 503a to 503c, an integrated monitoring image control unit 504, a storage medium 509, and a communication state management unit. 510.

  The abnormality detection unit 501a determines whether or not the communication abnormality detection signal E1 having a signal format based on the communication specification adopted by the first vendor has been received via the network NWa. When the abnormality detection unit 501a receives the communication abnormality detection signal E1, the abnormality detection unit 501a supplies log data LGa representing “warning” with character information to the log storage unit 502a. On the other hand, when the communication abnormality detection signal E1 is not received, the abnormality detection unit 501a supplies log data LGa representing “normal” as character information to the log storage unit 502a.

  For example, the log storage unit 502a takes in the log data LGa at predetermined time intervals, and stores the contents indicated by the log data LGa, that is, character information indicating “warning” or “normal”.

  The log regular search unit 503a searches for log data LGa representing “warning” from the log storage unit 502a using, for example, “warning” as character information as a search condition. When the log constant search unit 503a determines whether or not the log data LGa representing “warning” is stored in the log storage unit 502a by the search, and determines that the log data is stored, the first communication device A warning signal ERa that warns that (21, 31) is in an abnormal state is supplied to the integrated monitoring image control unit 504.

  The abnormality detection unit 501b determines whether or not the communication abnormality detection signal E2 having a signal format based on the communication specification adopted by the second vendor is received via the network NWa. When the abnormality detection unit 501b receives the communication abnormality detection signal E2, the abnormality detection unit 501b supplies log data LGb representing “warning” with character information to the log storage unit 502b. On the other hand, when the communication abnormality detection signal E2 has not been received, the abnormality detection unit 501b supplies log data LGb representing “normal” as character information to the log storage unit 502b.

  For example, the log storage unit 502b takes in the log data LGb at a predetermined interval, and stores the contents indicated by the log data LGb, that is, character information indicating “warning” or “normal”.

  The log regular search unit 503b searches the log data LGb representing “warning” from the log storage unit 502b using, for example, “warning” as character information as a search condition. When the log continuous search unit 503b determines whether or not the log data LGb representing “warning” is stored in the log storage unit 502b by the search, and determines that the log data LGb is stored, the second communication device A warning signal ERb that warns that (22, 32) is in an abnormal state is supplied to the integrated monitoring image control unit 504.

  The abnormality detection unit 501c determines whether or not the communication abnormality detection signal E3 or E4 having a signal format based on the communication specification adopted by the third vendor is received via the network NWa. When receiving the communication abnormality detection signal E3, the abnormality detection unit 501c supplies log data LGc representing “warning” with character information to the log storage unit 502c. On the other hand, when the communication abnormality detection signal E3 is not received, the abnormality detection unit 501c supplies log data LGc representing “normal” as character information to the log storage unit 502c.

  In addition, when receiving the communication abnormality detection signal E4, the abnormality detection unit 501c supplies log data LGd representing “warning” with character information to the log storage unit 502c. On the other hand, when the communication abnormality detection signal E4 has not been received, the abnormality detection unit 501c supplies log data LGd representing “normal” as character information to the log storage unit 502c.

  For example, the log accumulation unit 502c takes in the log data LGc and LGd at predetermined time intervals, and accumulates the contents indicated by the log data LGc and LGd, that is, character information indicating “warning” or “normal”.

  The log regular search unit 503c searches for log data LGc and LGd representing “warning” from the log storage unit 502c using, for example, “warning” as character information as a search condition.

  When the log constant search unit 503c determines whether or not the log data LGc representing “warning” is stored in the log storage unit 502c by the search, and determines that the log data LGc is stored, the third communication device A warning signal ERc that warns that (23, 33) is in an abnormal state is supplied to the integrated monitoring image control unit 504.

  Further, the log continuous search unit 503c determines whether or not the log data LGd representing “warning” is stored in the log storage unit 502c as a result of the above-described search. A warning signal ERd that warns that the communication devices (24, 33) 4 are in an abnormal state is supplied to the integrated monitoring image control unit 504.

  Note that when the above-described log regular search units 503a, 503b, and 503c receive the search condition designation signal transmitted from the HMI terminal 60 via the network NWb, the conditions designated by the search condition designation signal are: Set as the search condition.

  The storage medium 509 stores first to third communication management S / Ws in advance. The first communication management S / W is a program provided by the first vendor, and is responsible for processing for detecting the communication state of the first communication device (21, 31). The second communication management S / W is a program provided by the second vendor, and is responsible for processing for detecting the communication state of the second communication device (22, 32). The third communication management S / W is a program provided by the third vendor, and detects the communication state of the third communication device (23, 33) and the fourth communication device (24, 33). Responsible for processing.

  The communication state management unit 510 executes first to third communication management S / Ws stored in the storage medium 509. Note that the above-described abnormality detection unit 501a is an S / W module constructed by executing the first communication management S / W. The abnormality detection unit 501b is an S / W module constructed by executing the second communication management S / W. The abnormality detection unit 501c is an S / W module constructed by executing the third communication management S / W.

  Furthermore, the communication state management unit 510 performs the following processing by executing the first to third communication management S / Ws.

  When the communication state management unit 510 receives the above-described communication abnormality detection signal E1, the communication state management unit 510 communicates with the first communication device (21, 31) via the network NWa and the gateway 40. The communication state information TSa representing the current detailed communication state is generated.

  In addition, when the communication state management unit 510 receives the communication abnormality detection signal E2 described above, the communication state management unit 510 communicates with the second communication device (22, 32) via the network NWa and the gateway 40, so that the second Communication state information TSb representing the current detailed communication state of the communication device is generated.

  In addition, when the communication state management unit 510 receives the communication abnormality detection signal E3, the communication state management unit 510 communicates with the third communication device (23, 33) via the network NWa and the gateway 40, and Communication state information TSc representing the current detailed communication state of the communication device is generated.

  In addition, when the communication state management unit 510 receives the communication abnormality detection signal E4 described above, the communication state management unit 510 communicates with the fourth communication device (24, 33) via the network NWa and the gateway 40, and Communication state information TSd representing the current detailed communication state of the communication device is generated.

  Here, when the communication state management unit 510 receives the communication state request signal transmitted from the HMI terminal 60 via the network NWb, the communication state management unit 510 changes the communication state request signal from the communication state information TSa to TSc described above. Select the communication status information specified. The communication state management unit 510 supplies the selected communication state information to the integrated monitoring image control unit 504 as communication state information TS.

  When the integrated monitoring image control unit 504 receives the monitoring start command signal transmitted from the HMI terminal 60 via the network NWb, for example, the integrated monitoring image control unit 504 transmits a monitoring image signal VM representing the monitoring image DM as illustrated in FIG. 3 via the network NWb. To the HMI terminal 60.

  As shown in FIG. 3, the monitor image DM is associated with the first to fourth communication devices connected to the sensors 11 to 14, and a button B <b> 1 for requesting communication state information for each communication device. -B4 is included. For example, the button B1 corresponds to the communication state information TSa of the first communication device (21, 31), and the button B2 corresponds to the communication state information TSb of the second communication device (22, 32). The button B3 corresponds to the communication state information TSc of the third communication device (23, 33), and the button B4 corresponds to the communication state information TSd of the third communication device (24, 33).

  Here, when the integrated monitoring image control unit 504 receives the warning signal ERa described above, the integrated monitoring image control unit 504 generates a monitoring image signal VM including a message indicating “warning” in the area of the button B1 of the monitoring image DM illustrated in FIG. It transmits to HMI terminal 60 via NWb. Further, when receiving the warning signal ERb, the integrated monitoring image control unit 504 transmits a monitoring image signal VM including a message indicating “warning” in the area of the button B2 to the HMI terminal 60 via the network NWb. Further, when receiving the warning signal ERc, the integrated monitoring image control unit 504 transmits a monitoring image signal VM including a message indicating “warning” in the area of the button B3 to the HMI terminal 60 via the network NWb. Further, when receiving the warning signal ERd, the integrated monitoring image control unit 504 transmits a monitoring image signal VM including a message indicating “warning” in the area of the button B4 to the HMI terminal 60 via the network NWb.

  FIG. 3 shows a state in which a message indicating “warning” is displayed on the button B2 corresponding to the second communication device (22, 32) connected to the sensor 12.

  In addition, the integrated monitoring image control unit 504 generates a communication management image signal VS representing a communication management image indicating the communication state information TS supplied from the communication state management unit 510 in characters or graphics. The integrated monitoring image control unit 504 transmits the monitoring image signal VM and the communication management image signal VS described above to the HMI terminal 60 via the network NWb.

  The HMI terminal 60 includes an operation unit 64 that receives a user's input operation and a display unit 65.

  When the HMI terminal 60 receives the monitoring image signal VM via the network NWb, the HMI terminal 60 displays the monitoring image DM as shown in FIG. 3 on the display unit 65 in accordance with the monitoring image signal VM.

  Further, when the HMI terminal 60 receives a log data search condition (for example, character information such as a keyword) by a user input operation, the HMI terminal 60 sends a search condition designation signal representing the search condition via the network NWb. Send to server 50.

  When the HMI terminal 60 receives a monitoring start command by a user input operation, the HMI terminal 60 transmits a monitoring start command signal to the IoT server 50 via the network NWb.

  Furthermore, when one of the buttons B1 to B4 shown in FIG. 3 is selected by the user's input operation, the HMI terminal 60 requests communication state information indicating the current state of the communication device corresponding to the button. A communication status request signal is transmitted to the IoT server 50 via the network NWb.

  For example, when the user selects the button B2 in the monitoring image DM, the HMI terminal 60 sends a communication state request signal specifying the communication state information TSb related to the second communication device (22, 32) corresponding to the button B2 to the IoT. Send to server 50.

  Below, an example of operation | movement of the communication system 100 shown in FIG.1 and FIG.2 is demonstrated.

  FIG. 4 illustrates the first communication device, the monitoring unit 55 of the IoT server 50, and the first communication device (21, 31) connected to the sensor 11 illustrated in FIG. It is a communication flow figure showing the operation performed between HMI terminals.

  First, as a search condition for log data, the HMI terminal 60 transmits, for example, a search condition designating signal indicating “warning” in character information to the log regular search unit 503a of the monitoring unit 55 (step S10). When the log search unit 503a receives the search condition designation signal, it sets character information representing “warning” as the search condition represented by the search condition designation signal (step S11).

  Next, the HMI terminal 60 transmits a monitoring start command signal to the integrated monitoring image control unit 504 of the monitoring unit 55 (step S12). Upon receiving the monitoring start command signal, the integrated monitoring image control unit 504 transmits a monitoring image signal VM representing the monitoring image DM as shown in FIG. 3 to the HMI terminal 60 (step S13). When receiving the monitoring image signal VM, the HMI terminal 60 displays the monitoring image DM represented by the monitoring image signal VM on the display unit 65 (step S14).

  Thereafter, the sensor 11 supplies a detection signal SD1 representing its own detection result to the first communication device (21, 31) (step S21). The first communication device transmits the sensor signal DX1 including the detection signal SD1 to the IoT server 50 via the gateway 40 (step S22). The IoT server 50 stores the sensor signal DX1 in the database.

  During this time, since the first communication device (21, 31) is in a normal communication state, the abnormality detection unit 501a of the monitoring unit 55 does not receive the communication abnormality detection signal E1. Therefore, the abnormality detection unit 501a supplies log data LGa representing, for example, “normal” as character information to the log storage unit 502a (step S23). Upon receiving the log data LGa, the log storage unit 502a stores the contents of the log data LGa (for example, character information “normal”) (step S24).

  Here, the constant log search unit 503a of the monitoring unit 55 searches for log data LGa including character information representing “warning” from the log data LGa group stored in the log storage unit 502a (step S25). ). Thereby, the log storage unit 502a reads the log data LGa group stored in itself (step S26). The log regular search unit 503a determines whether or not log data LGa including character information indicating “warning” is included from the read log data LGa group (step S27). At this time, since the first communication device (21, 31) is in a normal communication state, log data LGa including character information indicating “normal” is stored in the log storage unit 502a. The log data LGa including the character information indicating “is not accumulated. Therefore, the log regular search unit 503a does not supply the warning signal ERa to the integrated monitoring image control unit 504. Therefore, the integrated monitoring image control unit 504 continuously transmits the monitoring image signal VM generated in step S13 described above to the HMI terminal 60.

  Thereby, as shown in the monitoring image DM of FIG. 3, the message indicating “warning” is not displayed on the button B1 corresponding to the first communication device.

  In the following, when communication abnormality occurs in the second communication device (22, 32) connected to the sensor 12 shown in FIG. 1, the second communication device and the monitoring unit 55 of the IoT server 50 will be described. The operation performed with the HMI terminal 60 will be described according to the communication flow shown in FIG. Note that the processing of steps S10 to S14 shown in FIG. 5 is the same as that shown in FIG.

  In FIG. 5, the sensor 12 supplies a detection signal SD2 representing its detection result to the second communication device (22, 32) (step S31). Here, since a communication abnormality has occurred, the second communication device transmits a communication abnormality detection signal E2 to the monitoring unit 55 of the IoT server 5 via the gateway 40 (step S32).

  When receiving the communication abnormality detection signal E2, the abnormality detection unit 501b and the communication state management unit 510 of the monitoring unit 55 execute communication abnormality handling processing (step S33). In the communication abnormality handling process, the abnormality detection unit 501b supplies log data LGb representing “warning” with character information to the log storage unit 502b. The communication state management unit 510 communicates with the second communication device (22, 32) via the network NWa, and generates communication state information TSb representing the current detailed communication state of the second communication device.

  Upon receiving the log data LGb, the log storage unit 502b stores the contents of the log data LGb (for example, character information “warning”) (step S34).

  The constant log search unit 503b of the monitoring unit 55 searches the log data LGb including character information indicating “warning” from the log data LGb group stored in the log storage unit 502b (step S35). Thereby, the log storage unit 502b reads the log data LGb group stored in itself (step S36). Then, the log constant search unit 503b determines whether or not the log data LGb including character information indicating “warning” is included in the read log data LGb group (step S37). At this time, since the second communication device (23, 32) is in a communication abnormal state, log data LGb including character information indicating “warning” is stored in the log storage unit 502b. Therefore, the log continuous search unit 503b determines that the log data LGb including character information indicating “warning” is stored in the log storage unit 502b, and supplies the warning signal ERb to the integrated monitoring image control unit 504. .

  Upon receiving the warning signal ERb, the integrated monitoring image control unit 504 transmits the monitoring image signal VM representing the monitoring image DM including the warning message in the area of the button B2 to the HMI terminal 60 as shown in FIG. 3 (step S38). . When receiving the monitoring image signal VM, the HMI terminal 60 displays the monitoring image DM including the warning message in the area of the button B2 on the display unit 65 as shown in FIG. 3 (step S39).

  Here, when the user of the HMI terminal 60 selects one of the buttons B1 to B4 in the monitoring image DM displayed on the display unit 65, the detailed state of the communication device corresponding to the selected button is displayed. The communication management image to be displayed is displayed on the display unit 65.

  FIG. 6 illustrates a communication state management unit 510 and an integrated image control unit included in the monitoring unit 55 when the user of the HMI terminal 60 selects the button B2 on which a warning message is displayed as illustrated in FIG. 5 is a communication flow diagram illustrating an operation performed between the H.504 and the HMI terminal 60. FIG.

  In FIG. 6, when receiving the selection operation of the button B2 by the user, the HMI terminal 60 transmits a communication state request signal for requesting the communication state information TSb corresponding to the button B2 to the communication state management unit 510 (step S41). . In response to receiving this communication state request signal, the communication state management unit 510 supplies the communication state information TSb to the integrated image control unit 504 as the communication state information TS (step S42). The integrated image control unit 504 transmits a communication management image signal VS representing the communication state information TS in characters or graphics to the HMI terminal 60 (step S43). When the HMI terminal 60 receives the communication management image signal VS, the communication management image representing in detail the communication state of the second communication device (22, 32) represented by the communication management image signal VS is displayed on the display unit 65. It is displayed (step S44).

  As described above, according to the communication system 100, even if the communication management S / W responsible for acquiring the communication state information is different for each communication device, the display forms (warning messages) of the buttons B1 to B4 included in the monitoring image DM. From the display of communication status information TSa to TSd corresponding to the first to fourth communication devices, it becomes possible to know the communication status information to be preferentially acquired.

  Then, when the user of the HMI terminal 60 selects, for example, the button B2 on which a warning message is displayed, a communication management image representing the communication state of the second communication device (22, 32) is displayed on the display unit 65. The Therefore, the user can specify the cause of the failure occurring in the second communication device (22, 32) based on the communication management image.

  Therefore, the user can grasp the communication state of a desired communication device from among a plurality of communication devices with a simple operation and without erroneous operation.

  In the above embodiment, when the first to fourth communication devices are in a communication abnormality state, the communication abnormality detection signals E1 to E4 are transmitted to the IoT server 50 to notify the monitoring unit 55 of the communication abnormality. ing. However, the first to fourth communication devices that do not have the function of generating the communication abnormality detection signals E1 to E4 may be employed. At this time, the abnormality detection units 501a to 501c included in the monitoring unit 55 perform first to fourth communication by performing test communication with the first to fourth communication devices via the network NWa and the gateway 40, for example. It is determined for each device whether or not a communication abnormality has occurred.

  In the above embodiment, four communication devices connected to the four sensors 11 to 14 are monitored, but N (N is an integer of 2 or more) communication devices may be monitored. .

  In the example illustrated in FIG. 3, the character information is stored in the area of the button B2 associated with the communication state information corresponding to the communication apparatus in which the communication abnormality has occurred among the buttons B1 to B4 included in the monitoring image DM. Although a warning message is added, the display form is not limited to this.

  Moreover, in the said Example, although the term button is used as a name of B1-B4 contained in the monitoring image DM, it is not limited to this. In other words, B1 to B4 may be icons for individually acquiring the first to fourth communication state information TSa to TSd.

  In short, the communication system 100 is connected to the first to Nth communication devices (21 to 24, 31 to 33) connected to the communication network (NWa) and the communication network as follows. What is necessary is just to include a server (50) and a terminal (60) that communicates with the server.

  The server (50) includes the following server, communication abnormality detection unit, and image control unit.

  The communication state management unit (510) detects the communication state of the first to Nth communication devices via the communication network (NWa) to obtain the first to Nth communication state information (TSa to TSd), When the communication state request signal is received, the communication state information (TS) designated by the communication state request signal is selected from the first to Nth communication state information.

  The communication abnormality detection unit (501a to 501c, 502a to 502c, 503a to 503c) detects a communication apparatus in which a communication abnormality has occurred from the first to Nth communication apparatuses via the communication network. The image control unit (504) represents the first to Nth icons (B1 to B4) associated with the first to Nth communication state information, and communication abnormality occurs among the first to Nth icons. A monitoring image signal (VM) representing a monitoring image (DM) in which predetermined character information is added to the icon area associated with the communication state information corresponding to the communication device is transmitted to the terminal (60). Further, the image control unit (504) transmits a communication management image signal (TS) representing the communication state information selected by the communication state management unit (510) to the terminal (60).

  The terminal (60) includes a display unit (65) for displaying a monitoring image based on the monitoring image signal and a communication management image based on the communication management image signal, and one of the first to Nth icons included in the monitoring image. When an operation for selecting one icon is received, a communication state request signal designating communication state information corresponding to the selected icon is transmitted to the server (50).

11-14 Sensors 21-24 Sub-communication units 31-33 Main communication unit 50 IoT server 55 Monitoring unit 60 HMI terminal 65 Display units 501a-501c Abnormality detection units 502a-502c Log storage units 503a-503c Log continuous search unit 504 Integrated monitoring Image controller

Claims (7)

Including first to Nth (N is an integer of 2 or more) communication devices connected to a communication network, a server connected to the communication network, and a terminal that communicates with the server,
The server
When the communication states of the first to Nth communication devices are detected via the communication network to obtain first to Nth communication state information and a communication state request signal is received, the first to Nth communication devices are received. A communication state management unit for selecting communication state information designated by the communication state request signal from the communication state information of
A communication abnormality detection unit that detects a communication device in which a communication abnormality occurs from the first to Nth communication devices via the communication network;
The first to Nth icons associated with the first to Nth communication state information, and the communication corresponding to the communication device in which the communication abnormality has occurred among the first to Nth icons A monitoring image signal representing a monitoring image in which predetermined character information is added in the area of the icon associated with the state information, and a communication management image signal representing the communication state information selected by the communication state management unit. An image control unit for transmitting to the terminal,
The terminal includes a display unit that displays the monitoring image based on the monitoring image signal and the communication management image based on the communication management image signal, and one of the first to Nth icons included in the monitoring image. A communication system that transmits the communication state request signal designating the communication state information corresponding to the selected icon to the server when an operation for selecting one icon is received. The communication abnormality detection unit
For each of the first to Nth communication devices, log data representing first character information is generated when the communication abnormality has occurred, and second character information is generated when the communication abnormality has not occurred. An anomaly detector;
First to Nth log storage units that store the log data in association with the first to Nth communication devices;
The log data representing the first character information is searched from each of the first to Nth log storage units, and the log data representing the first character information is searched for corresponding to the log storage unit The communication system according to claim 1, further comprising: a log search unit that determines that the communication abnormality has occurred in the communication device. When the terminal receives an input operation of a keyword representing a search condition for the log data, the terminal transmits a search condition designation signal representing the keyword to the server,
The communication system according to claim 2, wherein the log search unit of the server sets a keyword represented by the search condition specifying signal as the first character information.   The communication state management unit generates the first to Nth communication state information by executing first to Nth communication management software respectively corresponding to the first to Nth communication devices. The communication system according to any one of claims 1 to 3, wherein first to Nth abnormality detection units are constructed.   The communication system according to claim 1, wherein the predetermined character information is a message prompting a warning. Including first to Nth sensors;
The first to Nth communication devices transmit the first to Nth detection signals generated by the first to Nth sensors to the server via the communication network. The communication system according to any one of 1 to 5. A communication system including first to Nth communication devices (N is an integer of 2 or more) connected to a communication network, a server connected to the communication network, and a terminal that communicates with the server. A communication device monitoring method comprising:
The server is
When the communication states of the first to Nth communication devices are detected via the communication network to obtain first to Nth communication state information and a communication state request signal is received, the first to Nth communication devices are received. Communication state information designated by the communication state request signal is selected from the communication state information of
Detecting a communication device in which a communication abnormality occurs from the first to N-th communication devices via the communication network;
The first to Nth icons associated with the first to Nth communication state information, and the communication corresponding to the communication device in which the communication abnormality has occurred among the first to Nth icons A monitoring image signal representing a monitoring image in which predetermined character information is added in the area of the icon associated with the state information, and a communication management image signal representing the communication state information selected by the communication state management unit. To the terminal,
The terminal displays the monitoring image based on the monitoring image signal and the communication management image based on the communication management image signal;
The communication state request signal for designating the communication state information corresponding to the selected icon when an operation for selecting one of the first to Nth icons included in the monitoring image is received. A method for monitoring a communication device in a communication system, comprising: transmitting to the server.

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