JP4639675B2 - Device monitoring device and device monitoring system - Google Patents

Description

  The present invention relates to a device monitoring apparatus that centrally monitors one or more devices by acquiring monitoring information from one or more devices, and particularly supports the main device when the main device is found to be abnormal. The present invention relates to a device monitoring apparatus capable of performing the above. And it is related with an equipment monitoring system provided with such an equipment monitoring device.

  In buildings such as apartment houses, government buildings, halls, commercial buildings, office buildings and factories, various devices such as lighting devices, air conditioning devices, measuring devices and security devices are installed. In recent years, due to advances in communication technology and the like, these devices are networked by being connected to each other via communication lines, and further, device monitoring devices are connected to the network and are centrally monitored. As one of such techniques, there is a power measurement system described in Patent Document 1 and a guide light automatic inspection system described in Patent Document 2.

  The power measurement system described in Patent Document 1 includes a plurality of measurement target devices that are loads, and a plurality of power measurement devices that are provided for each of the plurality of measurement target devices and measure various amounts of power such as power in the measurement target devices. , Monitor and control terminals that monitor various statuses of the measurement target devices and various control outputs, collect power quantity data from the power measurement device, collect various status monitoring data from the monitor and control terminals, create forms, graph and operate And a data processing device that performs time integration and the like. This data processing device is connected to a plurality of power measurement devices and monitoring control terminals through communication lines, and communicates with the plurality of power measurement devices and monitoring control terminals by RS485 to provide various amounts of power data and various state monitoring data (monitoring). An example of information is collected.

In addition, the automatic guide light inspection system described in Patent Document 2 can automatically turn on a lamp using an emergency power source in an emergency, and can automatically check the status of these lamps and the emergency power source. An inspection device and a guide light control / monitoring panel for transmitting an inspection command to the guide light automatic inspection device and transmitting the inspection light and monitoring the inspection state are configured. The guide light control monitoring panel is connected to a plurality of guide light automatic inspection devices via communication lines, communicates with a plurality of guide light automatic inspection devices by RS485, transmits an inspection command to the guide light automatic inspection device, and results of inspection (An example of monitoring information) is received and accumulated.
JP 2003-315385 A JP 2004-111347 A

  By the way, the equipment monitoring device when the equipment monitoring device such as the data processing device and the guide light control monitoring panel related to the background technology has trouble, the communication trouble occurs, or the maintenance (maintenance) is necessary. In the meantime, in the equipment monitoring system such as the power measurement system and the guide light automatic inspection system according to the background technology, the equipment monitoring device is the equipment to be measured and the equipment such as the guide light automatic inspection device according to the background technology. Monitoring information cannot be collected from the monitoring information, and monitoring information during that time is lost.

  In addition, when an abnormality occurs in the device monitoring device, it may be possible to provide the device monitoring system with a sponsored device monitoring device that supports the device monitoring device. Providing the device increases the cost. Therefore, in order to make the owner incentive (incentive) for the introduction of the device monitoring system, it is desirable that a device monitoring device for support can be introduced into the device monitoring system as a retrofit after the introduction of the device monitoring system.

  Furthermore, when such a sponsored device monitoring device is introduced into the device monitoring system from the beginning or as a retrofit, information on the device, etc., as with the sponsored device monitoring device, is supported by a user such as a constructor. However, as the number of devices increases, an input error is likely to occur, and the trouble of input is troublesome.

  This invention is an invention made | formed in view of the above-mentioned situation, and provides the apparatus monitoring apparatus which can support this apparatus monitoring apparatus, when it recognizes that the apparatus monitoring apparatus of support object is abnormal. Objective. It is another object of the present invention to provide a device monitoring apparatus that can be installed after installation of the device monitoring system. It is another object of the present invention to provide a device monitoring apparatus that can eliminate input mistakes and can save input labor. And it aims at providing the equipment monitoring system provided with such an equipment monitoring device.

To achieve the above object, the equipment monitoring device according to one embodiment of the present invention is an equipment monitoring device for monitoring equipment monitored, first communication unit for communicating with the monitoring target device A second communication unit for communicating with a monitoring server that accumulates monitoring information related to the device to be monitored, and a mode information storage unit that stores mode information indicating either the main mode or the sub mode. When the mode information is the main mode, the monitoring information is collected from the monitoring target device using the first communication unit, and the collected monitoring information is collected to the monitoring server using the second communication unit. a main mode processing unit for transmitting, when the mode information is sub-mode, if the mode information to recognize the abnormality of the equipment monitoring device is a main mode, this abnormality occurs equipment monitoring device On the line, and the sub-mode processing unit that transmits the first using the communication unit collects monitoring information from the monitored devices, the monitoring information the collection by using the second communication unit to the monitoring server, while the mode information is to indicate main mode activates the main mode processing unit, when the mode information indicates a sub-mode and characterized in that it comprises a boot processing unit for activating the sub-mode processing unit To do.

Then, in the above-mentioned equipment monitoring device, the sub-mode processing unit, based on the response by sending a status confirmation request signal for confirming the state of own apparatus with respect to the equipment monitoring device wherein the mode information is the main mode Te, together with the mode information equipment monitoring device, which is the main mode is judged whether it is abnormal, the main mode processing unit, when receiving the state confirmation request signal, checks the state of its own A response signal indicating the result is returned to the transmission source of the state confirmation request signal.

Further, in the above-mentioned equipment monitoring device, the sub-mode processing unit, said mode information based on the presence or absence of communication between the equipment monitoring device, which is the main mode and the monitored device, wherein the mode information is the main mode It is characterized by determining whether or not the device monitoring device is abnormal.

Further, in the above-mentioned equipment monitoring device, further comprising monitoring information storage unit for storing the monitoring information, the sub-mode processing unit is configured to further store the monitoring information storage unit monitoring information the collection, the When the device monitoring device whose mode information is the main mode is recognized as normal after recognizing that it is abnormal, from the device to be monitored between the time when it is recognized as normal and the time when it is recognized as normal The collected monitoring information is further transmitted to the device monitoring apparatus whose mode information is the main mode , and the main mode processing unit further stores the collected monitoring information in the monitoring information storage unit, and If the monitoring information collected from the device the mode information received from the equipment monitoring device is a sub-mode, the monitoring information thus received the monitoring information storage unit Characterized in that it further stores.

Further, in the above-mentioned equipment monitoring device, the activation processing unit, when starting the sub-mode processing unit, an information and the monitoring server about the monitored device from the mode information equipment monitoring device is the main mode It is characterized by acquiring information.

  According to one aspect of the present invention, one or more devices, two device monitoring devices that use the one or more devices as devices to be monitored, and one or more of the two device monitoring devices. In a device monitoring system capable of collecting monitoring information on the devices, and including a monitoring server that accumulates the collected monitoring information, the two device monitoring devices are device monitoring devices in any of the above-described cases. It is characterized by.

  In the device monitoring apparatus having such a configuration, the mode information storage unit stores mode information indicating one of the main mode and the sub mode, and the main mode processing unit is monitored using the first communication unit. Monitoring information is collected from other devices, and the collected monitoring information is transmitted to the monitoring server using the second communication unit, and the sub-mode processing unit recognizes that the device monitoring device set to the main mode is abnormal. In this case, the monitoring information is collected from the monitoring target device using the first communication unit, and the collected monitoring information is transmitted to the monitoring server using the second communication unit. When the mode information indicates the main mode, the main mode processing unit is activated. On the other hand, when the mode information indicates the sub mode, the sub mode processing unit is activated.

  For this reason, even if an abnormality occurs in the main mode device monitoring apparatus by including the main mode device monitoring device and the sub mode device monitoring device having such a configuration in the device monitoring system that monitors the device, the sub mode The device monitoring device can detect this, collect monitoring information from the device on behalf of the device monitoring device in the main mode, and transmit it to the monitoring server. Therefore, the monitoring server does not lose monitoring information even if an abnormality occurs in the main mode device monitoring apparatus.

  In addition, since the device monitoring device includes a main mode processing unit and a sub-mode processing unit, when the device monitoring system is introduced, one device monitoring device is provided and operated as a device monitoring system by operating in the main mode. On the other hand, if necessary, one device monitoring apparatus can be provided in the device monitoring system as a retrofit. And the apparatus monitoring apparatus of a main mode can be sponsored by operating an additional apparatus monitoring apparatus in sub mode.

Embodiments according to the present invention will be described below with reference to the drawings. In addition, the structure which attached | subjected the same code | symbol in each figure shows that it is the same structure, The description is abbreviate | omitted.
(Configuration of the first embodiment)
FIG. 1 is a diagram illustrating a configuration of a device monitoring system. FIG. 2 is a block diagram illustrating a configuration of the device monitoring apparatus. FIG. 3 is a diagram showing a configuration of a monitoring information table for registering monitoring information.

  In FIG. 1, the device monitoring system 1 includes a lower network (hereinafter abbreviated as “lower NT”) 2 for collecting monitoring information from one or more devices 11, and a device 11 collected by the lower NT 2. And a higher-order network (hereinafter abbreviated as “upper NT”) 3 for collecting and accumulating the monitoring information. The lower NT2 includes a plurality of device monitoring devices 10 (10-a, 10-b), one or more devices 11 (11-a, 11-b,...), And a plurality of these device monitoring devices 10 and 1. Or it is a local area network comprised including the communication line 12 which mutually connects the some apparatus 11 so that communication is possible. The host NT3 is a communication that interconnects the plurality of device monitoring devices 10, the monitoring server 16, the browsing terminal device 17, and the plurality of device monitoring devices 10, the monitoring server 16, and the browsing terminal device 17 in a communicable manner. A network including the line 18.

  In addition, in this specification, when referring generically, it shows with the reference symbol which abbreviate | omitted the alphabetic suffix, and when referring to an individual structure, it shows with the reference symbol which attached | subjected the alphabetic suffix.

  The device 11 is a device that operates using electricity as an energy source, and is a monitoring target of the device monitoring device 10. The device 11 includes, for example, a communication unit that communicates with the device monitoring apparatus 10 via the communication line 12, and a functional unit that executes the function of the device 11, and includes data detected by the functional unit and data of the functional unit. Data on the state (for example, power on / off, operating state, failure state, etc.) is transmitted to the device monitoring apparatus 10 using the communication unit. For example, when the device 11 is a power meter that measures the amount of electricity used, the function unit is a metering function that measures the amount of power used. In addition to the power meter, the device 11 is, for example, a gas meter that measures the amount of gas used, a meter such as a water meter that measures the amount of water used, a dwelling environment such as a lighting fixture and an air conditioner, or an office environment. Devices such as crime prevention sensors, smoke sensors, temperature sensors and humidity sensors, disaster prevention equipment such as guide lights and emergency lights.

  The device monitoring device 10 is a device that centrally monitors one or more devices 11 by acquiring monitoring information from one or more devices 11 and transmits the collected monitoring information of the devices 11 to the monitoring server 16. It is. For example, as illustrated in FIG. 2, the device monitoring apparatus 10 includes a control unit 101, an upper network communication interface unit (hereinafter, abbreviated as “upper NT communication interface unit”) 102, a storage unit 103, and a lower network. The communication interface unit (hereinafter abbreviated as “lower NT communication interface unit”) 104, these control unit 101, upper NT communication interface unit 102, storage unit 103, and lower NT communication interface unit 104 exchange data with each other. Are connected to the bus 105 respectively.

  The monitoring information is information according to the monitoring purpose of the device monitoring system 1, and is data relating to data detected by the functional unit of the device 11 and a state of the functional unit (for example, power on / off, operating state, failure state, etc.). It is. For example, when the monitoring purpose of the device monitoring system 1 is the power consumption amount of the load, the device 11 is a power meter, and the monitoring information is the power amount of the power meter. Further, for example, when the monitoring purpose of the device monitoring system 1 is the lighting state of the lighting fixture, the device 11 is the lighting fixture, and the monitoring information is on / off of the lighting fixture. Further, for example, when the monitoring purpose of the device monitoring system 1 is the operating condition of the air conditioner, the device 11 is an air conditioner, and the monitoring information is a set temperature and a set air volume of the air conditioner. Also, for example, when the monitoring purpose of the device monitoring system 1 is crime prevention, the device 11 is a crime prevention sensor, and the monitoring information is the presence / absence of a security sensor report.

  The upper NT communication interface unit 102 is a circuit for performing communication in the upper NT3. The upper NT communication interface unit 102 generates a communication signal according to the communication protocol of the upper NT3 from the data from the control unit 101 and controls the communication signal from the upper NT3. 101 converts the data into a format that can be processed. In this embodiment, the upper NT communication interface unit 102 is a communication interface card for performing communication using a so-called Internet protocol group, for example.

  The lower NT communication interface unit 104 is a circuit for performing communication in the lower NT2, generates a communication signal according to the communication protocol of the lower NT2 from the data from the control unit 101, and controls the communication signal from the lower NT2 101 converts the data into a format that can be processed. In the present embodiment, the lower NT communication interface unit 104 is, for example, an RS485 serial communication circuit.

  The control unit 101 includes, for example, a microprocessor and its peripheral circuits, and functionally includes a main mode processing unit 111, a sub mode processing unit 112, a startup processing unit 113, an initial setting processing unit 114, and a calendar unit 115. In addition, the upper NT communication interface unit 102, the lower NT communication interface unit 104, and the storage unit 103 are controlled according to the function by each program such as a communication program and a control program.

  The main mode processing unit 111 is activated when the device monitoring apparatus 10 is set to the main mode, acquires monitoring information from one or a plurality of devices 11 by an operation described later, stores the monitoring information in the storage unit 103, and The collected monitoring information of the device 11 is transmitted to the monitoring server 16.

  The sub mode processing unit 112 is activated when the device monitoring apparatus 10 is set to the sub mode. When the sub-mode processing unit 112 monitors the operating state of the main-mode device monitoring device 10 and recognizes that an abnormality has occurred in the main-mode device monitoring device 10, the sub-mode processing unit 112 performs one or more devices 11 by an operation described later. Is acquired and stored in the storage unit 103, and the collected monitoring information of the device 11 is transmitted to the monitoring server 16. When the sub-mode processing unit 112 monitors the operating state of the main-mode device monitoring apparatus 10 and recognizes that the main-mode device monitoring apparatus 10 has recovered from the abnormal state to the normal state, The monitoring information of the device 11 acquired from the one or more devices 11 and stored in the storage unit 103 is transmitted to the device monitoring apparatus 10 in the main mode.

  As described above, in this embodiment, the mode includes at least the main mode and the sub mode, and the main mode acquires monitoring information from one or a plurality of devices 11 by an operation described later and stores the monitoring information in the storage unit 103. This is a mode in which the device monitoring apparatus 10 is mainly operated so as to transmit the collected monitoring information of the device 11 to the monitoring server 16, and the sub mode indicates that an abnormality has occurred in the device monitoring apparatus 10 in the main mode. When the device monitoring apparatus recognizes the monitoring information from one or a plurality of devices 11 and stores it in the storage unit 103 and transmits the collected monitoring information of the device 11 to the monitoring server 16 when it recognizes. 10 is a mode in which 10 is mainly operated. In other words, the sub mode is a mode in which the device monitoring apparatus 10 in the main mode is sponsored by the device monitoring apparatus 10 in the sub mode.

  The activation processing unit 113 is activated when the device monitoring apparatus 10 starts operating such as when the power of the device monitoring apparatus 10 is turned on, and the mode setting of the device monitoring apparatus 10 is set and set by the operation described later. Prepare for the selected mode.

  The initial setting processing unit 114 is an HTTP server that performs initial settings such as input settings for basic information and operation information through operations described later. The calendar unit 115 measures the month, the day, and the time by measuring the passage of time.

  The storage unit 103 functionally stores a mode information storage unit 121 that stores mode information indicating a set mode among the main mode and the sub mode, a basic information storage unit 122 that stores basic information, and operation information. An operation information storage unit 123 that stores information, a monitoring information storage unit 124 that stores a monitoring information table that registers monitoring information of the device 11 acquired from the device 11, and an initial setting information storage unit 125 that stores initial setting information. In addition, each program (not shown) for operating the device monitoring apparatus 10 such as a startup process program, a main mode process program, a sub-mode process program, a communication program, and a control program, and each program such as a temporary IP address are executed. Data (not shown) and the like related to are stored. The storage unit 103 includes a volatile storage element such as a RAM (Random Access Memory) serving as a working memory, a rewritable nonvolatile storage element such as an EEPROM (Electrically Erasable Programmable Read Only Memory), and a ROM (Read Only Memory). And a semiconductor memory element such as a nonvolatile memory element.

  The basic information includes an IP address set in the device monitoring apparatus 10, an IP address of a subnet mask and a default gateway, and an IP address of the device monitoring apparatus 10 in the main mode.

  The operation information is the IP address of the monitoring server 16 and information on the device 11 to be monitored by the device monitoring apparatus 10.

  The monitoring information table is a table for registering monitoring information of the device 11. In this embodiment, for example, as shown in FIG. 3, the monitoring information table is a collection date / time field for registering the month, date, and time when the monitoring information of the device 11 is collected, and a device that registers the monitoring information of the device 11. Each field of the data field is configured, and a record is created for each month, day, and hour when the monitoring information of the device 11 is collected. The collection date field includes subfields of a month field for registering a month, a date field for registering a day, and a time field for registering a time. In the device data field, a subfield is provided for each device 11 in order to register monitoring information of the device 11 for each device 11. In addition, the monitoring information table has a record prepared so that monitoring information of the device 11 can be registered only for a predetermined period specified by the specification, such as one day, one week, two weeks, and one month. An area is prepared in the storage unit 103.

  The initial setting information is prepared in advance for inputting web page (basic information setting page) files written in a markup language prepared in advance for inputting mode information and basic information, and operation information. A web page (operation information setting page) file described in a markup language.

  The temporary IP address is an IP address that is required for an initial setting device (not shown) to communicate with the device monitoring device 10 when performing initial settings to the device monitoring device 10 such as input settings for basic information and operation information. For example, it is assigned to the device monitoring apparatus 10 at the manufacturing stage or the shipping stage. The initial setting device is a device that performs initial setting of the device monitoring device 10 by communicating with the device monitoring device 10. In the present embodiment, the initial setting device is, for example, a computer having a communication function and a browser.

  Returning to FIG. 1, in the present embodiment, the device monitoring apparatus 10 and the device 11 communicate by the RS485 polling method. The device monitoring apparatus 10 operates as a master station, and the device 11 operates as a slave station.

  The monitoring server 16 receives the monitoring information of the device 11 from the device monitoring device 10 and accumulates the monitoring information of the device 11, and also monitors the monitoring information of the device 11 according to the request from the browsing terminal device 17. Server computer to send to. In the present embodiment, the upper NT 3 uses a so-called Internet protocol group represented by TCP / IP (Transmission Control Protocol / Internet Protocol), and the monitoring server 16 includes the device monitoring device 10 and the browsing terminal device 17. Communication is performed using HTTP (Hyper Text Transfer Protocol). When the monitoring server 16 receives the monitoring information of the device 11 from the device monitoring apparatus 10, the monitoring server 16 operates as an HTTP server and the device monitoring apparatus 10 operates as an HTTP client. When the monitoring server 16 transmits the monitoring information of the device 11 to the browsing terminal device 17, the monitoring server 16 operates as an HTTP server and the browsing terminal device 17 operates as an HTTP client.

  The browsing terminal device 17 is a computer including a browser that receives monitoring information of the device 11 from the monitoring server 16 and displays the monitoring information of the device 11. The browsing terminal device 17 displays the monitoring information of the device 11 received from the monitoring server 16 by a display method such as a bar graph, a line graph, a pie chart, or the like in a display method that facilitates visual recognition of data trends according to the analysis purpose. The browsing terminal device 17 is, for example, a so-called desktop personal computer, notebook personal computer, PDA (Personal Digital Assistants), mobile communication terminal or the like having such a function by software such as a browser or hardware such as a communication interface. It is. Note that the browsing terminal device 17 may be configured integrally with the monitoring server 16.

Next, the operation of this embodiment will be described.
(Operation of the first embodiment)
First, the initial setting process will be described. FIG. 4 is a diagram showing a basic information setting page. FIG. 5 is a diagram showing an operation information setting page.

  For example, before starting operation of the equipment monitoring system 1, such as during construction of the equipment monitoring system 1, a user such as a contractor connects the initial setting device to the upper NT communication interface unit 102 of the equipment monitoring device 10. Then, the browser is activated using the temporary IP address of the device monitoring apparatus 10.

  When accessed using the temporary IP address, the initial setting processing unit 114 in the control unit 101 of the device monitoring apparatus 10 is activated. The initial setting processing unit 114 transmits the basic information setting page stored in the initial setting information storage unit 125 to the initial setting device. When receiving the basic information setting page, the initial setting device displays the basic information setting page by the browser.

  For example, as shown in FIG. 4, the basic information setting page 201 has a title display area 211 in which the title of the page “basic information setting screen” is displayed, and one of the main mode and the sub mode. A mode setting area 212 including a mode selection area 2121 to be selected and set, a main mode apparatus terminal apparatus IP address setting area 2122 to be set by inputting an IP address of the apparatus monitoring apparatus 10 in the main mode, and the apparatus monitoring apparatus 10 The IP address setting area 2131 for inputting and setting the IP address used in the upper NT3, the subnet mask setting area 2132 for inputting and setting the subnet mask, and the IP address of the default gateway are set. Default gateway IP address setting area 2133 An IP address setting area 213, and a setting button 214 for transmitting the data input to the mode setting area 212 and the IP address setting area 213 to the device monitoring apparatus 10 and causing the device monitoring apparatus 10 to set the data. It is prepared for.

  When the basic information setting page is displayed on the initial setting device, the user inputs the mode, IP address, subnet mask, and default gateway IP address to be set in the device monitoring device 10 using a mouse, a keyboard, and the like. The IP address of the device monitoring apparatus 10 in the main mode is input and the setting button 214 is operated.

  Here, when operating the device monitoring apparatus 10 in the main mode, the user selects and inputs the main mode in the mode selection area 2121 and does not input the main mode apparatus monitoring apparatus IP address setting area 2122. Then, the IP address of the device monitoring apparatus 10 is input to the own device IP address setting area 2131. Alternatively, the main mode may be selected and input in the mode selection area 2121, and the IP address of the apparatus monitoring apparatus 10 may be input to the main mode apparatus monitoring apparatus IP address setting area 2122. In this case, the IP address in the main mode device monitoring apparatus IP address setting area 2122 and the IP address in the own apparatus IP address setting area 2131 are the same. For this reason, from the viewpoint of saving input mistakes and input trouble, when the main mode is selected in the mode selection area 2121, the IP address in the main mode device monitoring apparatus IP address setting area 2122 is automatically transferred to the own apparatus IP address setting area 2131. You may comprise so that it may transcribe | transfer.

  On the other hand, when operating the device monitoring apparatus 10 in the sub mode, the user selects and inputs the sub mode in the mode selection area 2121 and is assigned to the main mode in the main mode apparatus monitoring apparatus IP address setting area 2122. The IP address of the device monitoring apparatus 10 is input, and the IP address of the device monitoring apparatus 10 is input to the own device IP address setting area 2131.

  When the setting button 214 is operated, the initial setting device transmits the input mode, the IP address of the device monitoring device 10 in the main mode, the IP address, the subnet mask, and the IP address of the default gateway to the device monitoring device 10. . The initial setting processing unit 114 receives the mode information received from the initial setting device, the IP address, the IP address, the subnet mask, and the IP address of the default gateway of the device monitoring device 10 in the main mode as mode information and basic information. And the basic information storage unit 122 respectively.

  When determining that the mode is the main mode, the initial setting processing unit 114 transmits the operation information setting page stored in the initial setting information storage unit 125 to the initial setting device. When receiving the operation information setting page, the initial setting device displays the operation information setting page by the browser. When the mode is the sub mode, the initial setting processing unit 114 ends this initial setting processing.

  For example, as shown in FIG. 5, the operation information setting page 202 includes a title display area 221 in which the title of the page “operation information setting screen” is displayed, and a monitoring server that is set by inputting the IP address of the monitoring server 16. In the IP address setting area 222, the monitoring target apparatus setting area 223 for inputting and setting the apparatus 11 to be monitored by the apparatus monitoring apparatus 10, the monitoring server IP address setting area 222 and the monitoring target apparatus setting area 223 A setting button 224 for transmitting the input data to the device monitoring apparatus 10 and causing the device monitoring apparatus 10 to set the data is configured. In the monitoring target device setting area 223, a device address field for displaying a device address which is a communication address of the device 11, a target field for inputting and displaying the device address to be monitored, and a non-monitoring target When a device 11 is selected, a table in which a record is created for each device address provided for each non-target field to be entered and displayed is displayed. In this embodiment, since RS485 is adopted as the communication protocol of the lower NT2 in this embodiment, an integer value from 0 to 31 is entered, and the device address is entered in the device address field. In response to the device 11 being monitored or excluded, a symbol indicating that, for example, “●” is displayed in the target field or the non-target field. In the example shown in FIG. 5, the devices 11 whose device addresses are “0”, “1”, “2”, “3”, “7”, “8”, and “9” are monitored, and the device address is “ The devices 11 of “4”, “5” and “6” are not monitored.

  By default, in the communication protocol that polls all the maximum connectable units regardless of whether they are actually connected or not, by specifying the device to be monitored in this way, the device address that is not actually connected In addition, it is possible to eliminate the waste of polling device addresses that are not subject to monitoring, and it is not necessary to secure a storage area in the storage unit 103 for device addresses that are not polled. The storage area of the unit 103 can be used effectively.

  When the operation information setting page 202 is displayed on the initial setting device, the user inputs the IP address of the monitoring server 16 to be set in the device monitoring device 10 and the device 11 to be monitored using a mouse or a keyboard. , The setting button 224 is operated.

  When the setting button 224 is operated, the initial setting device transmits the input IP address of the monitoring server 16 and information on the device 11 to be monitored to the device monitoring device 10. The initial setting processing unit 114 stores the IP address of the monitoring server 16 received from the initial setting device and information on the device 11 to be monitored in the operation information storage unit 122 as operation information. Then, the initial setting processing unit 114 ends this initial setting processing.

  By operating in this way, the device monitoring apparatus 10 is set with operation information when mode setting, basic information setting, and main mode are set.

  Next, the activation process will be described. FIG. 6 is a flowchart showing the operation of the activation process.

  When the above initial setting is completed and the construction of the equipment monitoring system 1 is completed, the power of each device is turned on. For example, when the device monitoring apparatus 10 is turned on, the activation processing unit 113 of the control unit 101 is activated. Note that the initial setting processing unit 114 may be configured to start the start processing unit 113 when the initial setting processing ends.

  In FIG. 6, the activation processing unit 113 checks whether basic information is stored in the basic information storage unit 122 of the storage unit 103 (S11). This basic information check is determined, for example, by whether or not the basic information storage unit 122 is different from the default state. If the basic information is not stored in the basic information storage unit 122 as a result of the check, the activation processing unit 113 performs a presentation or initial setting process indicating that the basic information is not stored in a user such as a constructor. You may comprise so that the prompt to the effect etc. may be performed. For example, the device monitoring device 10 is further provided with an LED for displaying the basic information check result, and the LED is turned on, or the device monitoring device 10 is further provided with an LCD to check the basic information. What is necessary is just to comprise so that the message which shows a result may be displayed.

  Next, the activation processing unit 113 determines whether or not the mode stored in the mode information storage unit 121 is the main mode (S12).

  As a result of the determination, if the mode is the main mode (YES), the activation processing unit 113 checks whether or not the operation information is stored in the operation information storage unit 123 of the storage unit 103, similarly to the process S11. (S13). Next, the activation processing unit 113 acquires time information indicating the current time from the monitoring server 16 in the upper NT3, and sets the current time in the calendar unit 115 (S14). Then, the activation processing unit 113 activates the main mode processing unit 111 (S15), and ends this activation processing.

  On the other hand, if the mode is not the main mode as a result of the determination in step S12 (NO), that is, if the mode is the sub mode, the IP address of the main mode device monitoring apparatus 10 in the basic information storage unit 112 is used. Then, a communication signal (operation information acquisition request signal) containing information requesting transmission of operation information is transmitted to the device monitoring apparatus 10 operating in the main mode at the upper NT3 (S21).

  The main mode processing unit 111 in the device monitoring apparatus 10 that has received the operation information acquisition request signal returns a communication signal (operation information signal) that stores the operation information stored in the operation information storage unit 123 of the storage unit 103. .

  When receiving the reply of the operation information signal, the activation processing unit 113 stores the operation information accommodated in the operation information signal in the operation information storage unit 123 (S22). Since the device monitoring device 10 set in the sub mode in this way acquires the operation information from the device monitoring device 10 set in the main mode, a user such as a constructor can monitor the device in which the operation information is set in the main mode. Since it is sufficient to input only to the device 10, labor saving can be achieved, and there is no opportunity for an input error to occur in the device monitoring device 10 in the sub mode. In addition, there is no occurrence of an operation information discrepancy between the main mode device monitoring device 10 and the sub mode device monitoring device 10.

  Next, the activation processing unit 113 checks whether or not the operation information is stored in the operation information storage unit 123, similarly to the process S11 (S23). Next, the activation processing unit 113 acquires time information indicating the current time from the monitoring server 16 in the upper NT3, and sets the current time in the calendar unit 115 (S24). Then, the activation processing unit 113 activates the sub-mode processing unit 111 (S25), and ends this activation process.

  By operating in this way, the device monitoring apparatus 10 is activated by one of the functions of the main mode and the sub mode according to the mode information stored in the mode information storage unit 121.

  Here, the time adjustment of the calendar unit 115 is not only performed in the startup process, but is also periodically performed, for example, once every half day, once a day, or once every two days. The time synchronization between them is almost the same.

  Next, the main mode process will be described. FIG. 7 is a flowchart showing main mode processing in the first embodiment. In FIG. 7, when activated by the activation processing unit 113, the main mode processing unit 111 acquires the current time from the calendar unit 115, and determines whether or not the current time is correct (S31). The hour is 00 minutes every hour. As will be described later, the process S31 is a process for determining the timing at which the device monitoring apparatus 10 collects the monitoring information from the device 11, so that the monitoring information is collected from the device 11 at every hour as in this embodiment. In this case, the process S31 is a determination as to whether it is the hour, but when monitoring information is acquired from the device 11 every 30 minutes, every 6 hours, every day, or the like, Judgment is made every 30 minutes, every 6 hours, or every day.

  As a result of the determination, when it is the hour (YES), the main mode processing unit 111 determines whether or not the date is over. That is, it is determined whether it is 0 o'clock (S32). As a result of the determination, when the date does not cross the day (NO), the main mode processing unit 111 executes the process S34. On the other hand, if the result of the determination is that the date has crossed the day (YES), the main mode processing unit 111 acquires time information indicating the current time from the monitoring server 16 in the higher-order NT3, and the current time is the calendar unit 115. (S33) and process S34 is executed.

  In step S34, the main mode processing unit 111 waits for reception of a communication signal (state confirmation request signal) containing information requesting state confirmation from the device monitoring apparatus 10 in the sub mode, and the main mode. The processing unit 111 determines whether or not the status check request signal is received by the upper NT3 (S35). Here, the reception waiting time of the state confirmation request signal in the process S34 is determined by the specification, and is, for example, 30 seconds, 45 seconds, 1 minute, or the like.

  As a result of the determination, when the state confirmation request signal is not received (NO), the main mode processing unit 111 executes a process S39. In the case where the status confirmation request signal is not received, a timeout for waiting to receive the status confirmation request signal (Timeout) is also included. By including the time-out case as described above, an abnormality caused by the maintenance of the main-mode device monitoring device 10 due to being removed or being offline, the main-mode device monitoring device 10 and the sub-mode device monitoring device. It is also possible to recognize anomalies due to communication failures that occurred in the meantime.

  On the other hand, as a result of the determination in step S35, when the state confirmation request signal is received (YES), the main mode processing unit 111 confirms the state of the own device (S36). The confirmation of the state of the own device is confirmation of whether or not the device monitoring apparatus 10 is in a trouble state in collecting monitoring information from the device 11 at the lower NT2. In this embodiment, the status of the own device is confirmed by, for example, CGI for confirming the status of the own device such as a check of the use status of the monitoring information storage unit 124, a check of the use status of the working memory, and a check of the process status. (Common Gateway Interface) This is done by executing a program. For this reason, in this embodiment, the status confirmation request signal is an execution request for this CGI program by HTTP.

  The main mode processing unit 111 determines whether or not the state of the own device is normal based on the result of confirmation of the state of the own device (S37).

  As a result of the determination, if the state of the own device is normal (YES), the main mode processing unit 111 displays a communication signal (state normal signal) containing information indicating that the state of the own device is normal. It returns to the transmission source of the confirmation request signal (sub-mode device monitoring apparatus 10) (S38).

  Next, the main mode processing unit 111 acquires monitoring information from the monitoring target device 11 (S39). More specifically, the main mode processing unit 111 refers to the operation information in the operation information storage unit 123, and contains communication information requesting the monitoring target device 11 to transmit the monitoring information of the device 11. A signal (data transmission request signal) is transmitted to the lower NT2. The device 11 that has received the data transmission request signal addressed to itself returns a communication signal (data return signal) containing the monitoring information of the device 11 to the transmission source of the data transmission request signal (device monitoring apparatus 10 in the main mode). . When the data return signal is received, the main mode processing unit 111 temporarily stores the monitoring information in the working memory. In this way, the main mode processing unit 111 acquires monitoring information from one device 11.

  Next, the main mode processing unit 111 determines whether acquisition of data from all the devices 11 to be monitored is completed based on the operation information in the operation information storage unit 123 (S40). As a result of the determination, if there is a device 11 for which monitoring information has not been acquired (NO), the main mode processing unit 111 returns the process to step S39. By executing such processing S39 and S40, the main mode processing unit 111 is a monitoring target based on the operation information in the operation information storage unit 123 until monitoring information is acquired from all the monitoring target devices 11. Monitoring information is collected from the device 11 by sequentially polling a certain device 11.

  On the other hand, if the monitoring information has been acquired from all the devices 11 to be monitored in the process S40 (YES), the main mode processing unit 111 displays the monitoring information of the device 11 temporarily stored in the working memory in the month, The date and time information is added and registered in the monitoring information table and stored in the monitoring device information storage unit 124 (S41).

  Then, the main mode processing unit 111 uses the IP address of the monitoring server 16 stored in the operation information storage unit 123 in the upper NT3, and collects the monitoring information of the device 11 and the month, day, and time when the monitoring information is collected. A communication signal (collected data transmission signal) containing the information is transmitted to the monitoring server 16 (S42), and the process returns to the process S31.

  As described above, the main mode processing unit 111 performs processing S31, processing S32, (processing S33), processing S34, processing S35, processing S36, processing S37, processing S38, processing S39, processing when the device itself is normal. By executing S40, S41, and S42, monitoring information is collected from all the devices 11 to be monitored, and the monitoring information collected by adding the collected month, date, and time information to the monitoring information storage unit 124. And transmitted to the monitoring server 16. Thus, the device monitoring apparatus 10 set to the main mode centrally monitors the device 11.

  Further, when the state of the own device is not normal as a result of the determination in step S37 (NO), the main mode processing unit 111 stores a communication signal (state that contains information indicating that the state of the own device is abnormal) (Abnormal signal) is returned to the transmission source of the state confirmation request signal (sub-mode device monitoring apparatus 10) (S43), and the process returns to process S31.

  When the state of the own device is not normal, that is, when the state of the own device is abnormal, the device monitoring apparatus 10 is in a state that hinders collection of monitoring information from the device 11 at the lower NT2, for example, When the microprocessor constituting the control unit 101 is overloaded, when the usage capacity of the monitoring information storage unit 124 exceeds a predetermined value (for example, 90%, 94%, 98%, etc.), the working memory The usage capacity exceeds a predetermined value (for example, 75%, 80%, 85%, etc.), or the necessary process is in a suspended state.

  In this way, the main mode processing unit 111 executes the processing S31, processing S32, (processing S33), processing S34, processing S35, processing S36, processing S37, and processing S43, thereby substituting that the own device is abnormal. The device monitoring device 10 in the mode can be notified.

  On the other hand, if the result of determination in step S31 is not the correct time (NO), the main mode processing unit 111 collects the monitoring information of the device 11 because the device monitoring device 10 in the main mode is not normal. Waiting for reception of a communication signal (data recovery request signal) containing information indicating a request to recover the monitoring information of the device 11 in the monitoring information storage unit 124 that has been lost due to failure (S51), and The main mode processing unit 111 determines whether or not the data restoration request signal has been received by the upper NT3 (S52). Here, the reception waiting time of the data recovery request signal in the process S51 is, for example, 30 seconds, 45 seconds, or 1 minute.

  As a result of the determination, when the data recovery request signal is not received (NO), the main mode processing unit 111 executes the process S31. Note that when a data recovery request signal is not received, a timeout for waiting for reception of the data recovery request signal is included. On the other hand, if the data recovery request signal is received as a result of the determination (YES), the main mode processing unit 111 provides information indicating that the main mode device monitoring apparatus 10 is ready to receive recovery data. The accommodated communication signal (data recovery preparation completion signal) is returned to the data recovery request signal transmission source (sub-mode device monitoring apparatus 10) (S53). Since the recovery of the missing data needs to be performed in a time period when the device monitoring apparatus 10 in the main mode is not monitoring the device 11, the completion of the preparation for receiving the recovered data is at least in this embodiment, This is after the device monitoring apparatus 10 in the main mode collects monitoring information from all the devices 11 to be monitored and stores the collected monitoring information in the monitoring information storage unit 124 and transmits it to the monitoring server 16.

  As will be described in detail in the operation description of the sub-mode processing unit 112 described later, when receiving the data recovery preparation completion signal, the sub-mode device monitoring apparatus 10 divides it into one or a plurality according to the capacity of the monitoring information of the device 11. The communication signal (recovery data transmission signal) containing the monitoring information collected from the device 11 instead of the device monitoring apparatus 10 in the main mode and the information of the month, date and time when the monitoring information was collected is transmitted. When the data is transmitted, a communication signal (data transmission end notification signal) containing information indicating that the data transmission is completed is transmitted to the device monitoring apparatus 10 in the main mode.

  When the main mode processing unit 111 receives the recovery data transmission signal, the main mode processing unit 111 stores the month, date, and time information accommodated in the recovery data transmission signal and the monitoring information of the device in the working memory (S54). Then, the main mode processing unit 111 determines whether or not a data transmission end notification signal has been received (S55). As a result of the determination, if the data transmission end notification signal has not been received (NO), the main mode processing unit 111 returns the process to step S54 and continues to receive the recovery data transmission signal. On the other hand, as a result of the determination, when the data transmission end notification signal is received (YES), the main mode processing unit 111 includes the month, date, and time information stored in the working memory and the device monitoring information. Is used to recover the monitoring information of the device 11 in the monitoring information table that has been lost because the monitoring information of the device 11 cannot be collected (S56), and the process returns to the processing S31. Here, when the monitoring information of the device 11 at the same time as the monitoring information of the device 11 accommodated in the recovery data transmission signal is registered in the monitoring information table of the monitoring information storage unit 124, the main mode processing unit 111. Is overwritten with the monitoring information of the device 11 accommodated in the recovery data transmission signal. Since the data is overwritten in this way, the device monitoring system 1 monitors the device 11 even if the device monitoring device 10 in the sub mode erroneously determines whether or not the device monitoring device 10 in the main mode is abnormal. There is no particular problem.

  As described above, the main mode processing unit 111 executes the process S31, the process S51, the process S52, the process S53, the process S54, the process S55, and the process S56 when the own apparatus is normal. The monitoring information of the device 11 in the time zone when the monitoring information could not be collected from the device 11 because it was not received from the device monitoring device 10 in the sub mode, and the monitoring information of the device 11 could not be collected and was missing The monitoring information of the device 11 in the monitoring information storage unit 124 that has been lost can be recovered.

  Next, sub mode processing will be described. FIG. 8 is a flowchart showing the sub-mode process in the first embodiment. In FIG. 8, when activated by the activation processing unit 113, the sub-mode processing unit 112 acquires the current time from the calendar unit 115 and determines whether or not the current time is on the hour (S61). This process S61 is also a process for determining the timing at which the device monitoring apparatus 10 collects monitoring information from the device 11 as in the above-described process S31.

  As a result of the determination, if it is not the correct time (NO), the sub-mode processing unit 112 waits for a predetermined time (S62) and returns the process to the process S61. The predetermined time is determined according to the specification, and the execution time of one cycle of the sub-mode process is shortened according to the length of the predetermined time.

  On the other hand, if it is determined that the time is correct (YES), the sub-mode processing unit 112 determines whether or not the date is over. That is, it is determined whether it is 0 o'clock (S63). As a result of the determination, when the date does not cross over (NO), the sub-mode processing unit 112 executes the process S65. On the other hand, if the result of the determination is that the date has crossed the day (YES), the sub-mode processing unit 112 acquires time information indicating the current time from the monitoring server 16 in the higher-order NT3, and the current time is the calendar unit 115. (S64) and process S65 is executed.

  In step S65, the sub-mode processing unit 112 uses the IP address of the main-mode device monitoring device 10 stored in the basic information storage unit 122 to know the state of the main-mode device monitoring device 10 in the main mode. A status confirmation request signal is transmitted to the device monitoring apparatus 10 and a reply is awaited.

  When receiving the reply, the sub-mode processing unit 112 determines whether or not the device monitoring apparatus 10 in the main mode is abnormal (S66).

  As a result of the determination, if the device monitoring apparatus 10 in the main mode is abnormal, that is, if a state abnormality signal is received from the device monitoring apparatus 10 in the main mode (YES), the sub-mode processing unit 112 is monitored. Data is acquired from the device 11 (S67). When the main mode device monitoring apparatus 10 is abnormal, there is no reply of the normal state signal or the abnormal state signal, and a timeout for waiting for reception of the reply is included. As described above, in the abnormal state, the main mode device monitoring apparatus 10 has a trouble in collecting monitoring information from the device 11 in the lower NT2, the main mode device monitoring apparatus 10 and the sub mode device monitoring apparatus 10 And a state in which the main mode device monitoring apparatus 10 is under maintenance.

  Here, the process S67 will be described more specifically. The sub-mode processing unit 112 refers to the operation information in the operation information storage unit 123, and transmits a data transmission request signal to the lower-order NT2 with respect to the monitoring target device 11. . The device 11 that has received the data transmission request signal addressed to itself transmits a data return signal to the transmission source of the data transmission request signal (sub-mode device monitoring apparatus 10). When the data return signal is received, the sub-mode processing unit 112 temporarily stores the data in the working memory. In this way, the sub-mode processing unit 112 acquires monitoring information from one device 11.

  Next, based on the operation information stored in the operation information storage unit 123, the sub-mode processing unit 112 determines whether data acquisition from all the devices 11 to be monitored has been completed (S68). As a result of the determination, if there is a device 11 for which monitoring information has not been acquired (NO), the sub-mode processing unit 112 returns the process to step S67. By executing such processing S67 and processing S68, the sub-mode processing unit 112 is the monitoring target based on the operation information in the operation information storage unit 123 until monitoring information is acquired from all the monitoring target devices 11. Monitoring information is collected from the device 11 by sequentially polling a certain device 11.

  On the other hand, if the monitoring information has already been acquired from all the devices 11 to be monitored in the process S68 (YES), the sub-mode processing unit 112 adds the monitoring information of the device 11 temporarily stored in the working memory to the month, The date and time information is added and stored in the monitoring device information storage unit 124 (S69).

  Then, the sub-mode processing unit 112 transmits the collected data transmission signal to the monitoring server 16 using the IP address of the management server 16 stored in the operation information storage unit 123 in the upper NT3 (S70), and processes the processing. Return to S61.

  As described above, when the device monitoring apparatus 10 in the main mode is abnormal, the sub-mode processing unit 112 performs processing S61, processing S63, (processing S64), processing S65, processing S66, processing S67, processing S68, processing S69. The monitoring information is collected from all the devices 11 to be monitored by executing the process S70, and the monitoring information collected with the month, date and time information is stored in the monitoring information storage unit 124 and the monitoring server 16 to send. In this way, the device monitoring device 10 set to the sub mode centrally monitors the device 11 on behalf of the device monitoring device 10 in the main mode when the device monitoring device 10 in the main mode is abnormal.

  If the result of determination in step S66 is that the main mode device monitoring device 10 is normal, that is, if a state normal signal is received from the main mode device monitoring device 10 (NO), the submode processing unit 112 Determines whether there is monitoring information on the device 11 to be transmitted to the device monitoring apparatus 10 in the main mode by determining whether the monitoring information on the device 11 exists in the monitoring information storage unit 124 ( S71).

  As a result of the determination, if there is no monitoring information of the device 11 to be transmitted (NO), the sub-mode processing unit 112 returns the process to step S61. On the other hand, if there is monitoring information of the device 11 to be transmitted as a result of the determination (YES), the sub-mode processing unit 112 stores the IP address of the main-mode device monitoring device 10 stored in the basic information storage unit 122. Is transmitted to the device monitoring apparatus 10 in the main mode at the upper NT3, and the reply is awaited (S72).

  Next, the sub-mode processing unit 112 determines whether or not a data recovery preparation completion signal has been received (S73). As a result of the determination, when the data recovery preparation completion signal is not received (NO), the sub-mode processing unit 112 returns the process to the process 72. That is, the sub-mode processing unit 112 repeatedly transmits a data recovery request signal to the main mode device monitoring apparatus 10 at the upper NT3 until a data recovery preparation completion signal is received.

  On the other hand, if the data recovery preparation completion signal is received as a result of the determination (YES), the submode processing unit 112 uses the monitoring information of the device 11 stored in the monitoring information storage unit 124 as the data of the recovery data transmission signal. The recovery data transmission signal is transmitted in accordance with the size (S74).

  Next, the sub-mode processing unit 112 determines whether transmission has been completed for the monitoring information of all the devices 11 stored in the monitoring information storage unit 124 (S75). If there is untransmitted data as a result of the determination (NO), the sub-mode processing unit 112 returns the process to the process 74 and continues to transmit the recovery data transmission signal. On the other hand, when the monitoring information of all the devices 11 is transmitted as a result of the determination (YES), the sub-mode processing unit 112 uses the IP address of the main-mode device monitoring apparatus 10 stored in the basic information storage unit 122. The upper NT3 transmits a data transmission end notification signal to the main mode device monitoring apparatus 10 (S76), and returns the process to the process 61.

  In this way, when the main mode device monitoring apparatus 10 returns to normal after the main mode device monitoring apparatus 10 becomes abnormal, the sub-mode processing unit 112 performs processing S61, processing S63, (processing S64), processing S65, processing S66, processing S71, By executing step S72, step S73, step S74, step S75, and step S76, the monitoring information collected from the device 11 on behalf of the device monitoring device 10 in the main mode is transmitted to the device monitoring device 10 in the main mode.

  Next, the operation of the device monitoring apparatus 10 described above will be described in more detail using a sequence diagram, divided into a normal time, an abnormality due to a timeout, an abnormality due to a state check in the main mode device monitoring apparatus, and a recovery time. .

  FIG. 9 is a sequence diagram illustrating the operation of the device monitoring system in the normal time according to the first embodiment. FIG. 10 is a sequence diagram illustrating the operation of the device monitoring system when an abnormality occurs due to timeout in the first embodiment. FIG. 11 is a sequence diagram illustrating the operation of the device monitoring system when an abnormality is detected by checking the state of the main mode device monitoring device according to the first embodiment. FIG. 12 is a sequence diagram showing the operation of the device monitoring system at the time of recovery in the first embodiment.

  In FIG. 1, it is assumed that the device monitoring device 10-a is set to the main mode and the device monitoring device 10-b is set to the sub mode.

  Accordingly, in the initial setting process, the user inputs basic information and operation information from the initial setting device using the basic information setting page and the operation information setting page. As a result, mode information, basic information, and operation information indicating the main mode are stored in the mode information storage unit 121, basic information storage unit 122, and operation information storage unit 123 of the device monitoring device 10-a by the initial setting device, respectively. The monitoring device 10-a is set to the main mode. Then, the user inputs basic information from the initial setting device using the basic information setting page. As a result, mode information and basic information indicating the sub mode are stored in the mode information storage unit 121 and the basic information storage unit 122 of the device monitoring device 10-a by the initial setting device, respectively, and the device monitoring device 10-a Set to

  In the activation process, in FIG. 6, the activation processing unit 113 in the control unit 101 of the device monitoring apparatus 10-a executes the basic information check process in the above-described process S11, and determines the main mode in the process S12. Therefore, the activation processing unit 113 of the device monitoring apparatus 10-a performs processing information check processing and time setting processing of the calendar unit 115 by executing processing S13, processing S14, and processing S15, and the main mode processing unit. 111 is started. On the other hand, the activation processing unit 113 in the control unit 101 of the device monitoring apparatus 10-b executes the basic information check process in the above-described process S11, and determines the sub mode in the process S12. Therefore, the activation processing unit 113 of the device monitoring apparatus 10-b acquires the operation information from the device monitoring apparatus 10-a in the main mode and stores it in the operation information storage unit 123 by executing the processing S21 and the processing S22. . Then, the activation processing unit 113 of the device monitoring apparatus 10-b performs processing information check processing and time setting processing of the calendar unit 115 by executing processing S23, processing S24, and processing S25. 112 is started. Thus, the operation of the device monitoring system 1 is started.

  First, the operation of the device monitoring apparatus 10 during normal operation will be described. In the normal time, in FIGS. 7 to 9, the main mode processing unit 111 of the device monitoring apparatus 10-a determines whether or not it is the correct time in the above-described process S31. After executing step S52, the process returns to step S31. On the other hand, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines whether or not it is a correct time in the process S61. If not, it returns to the process S61 after executing the process S62.

  At the correct time, the main mode processing unit 111 of the device monitoring apparatus 10-a determines that it is the correct time in the process S31, and after executing the process S32 and the process S33 as necessary, the status check request signal is output in the process S34. Wait for reception.

  On the other hand, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines that it is the hour in the process S61, executes the process S62 and the process S63 as necessary, and then performs the process S65 in the main mode. Send a status confirmation request signal to -a. The main mode processing unit 111 of the device monitoring apparatus 10-a determines whether or not a state confirmation request signal has been received in step S35. When the state confirmation request signal is received, the main mode processing unit 111 confirms the state of the own device in step S36. In step S37, it is determined whether it is normal. Here, since it is normal time, it is determined to be normal, and a status normal signal is returned to the transmission source of the status confirmation request signal in process S38 (C11-1).

  The main mode processing unit 111 of the device monitoring apparatus 10-a collects the monitoring information of the device 11 from all the devices 11 to be monitored in the processing S39 and the processing S40, and collects the monitoring information of the device 11 collected in the processing S41. It memorize | stores and preserve | saves at the monitoring information storage part 124 (C12-1). Next, the main mode processing unit 111 of the device monitoring apparatus 10-a transmits the monitoring information of the device 11 collected in the processing S42 to the monitoring server 16, and returns the processing to the processing S31 (C13-1).

  On the other hand, when the reply of the normal state signal is received, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines that the abnormality is normal in the process S66. The process returns to S61.

  The device monitoring device 10-a in the main mode and the device monitoring device 10-b in the sub mode repeatedly execute such processing in the normal time, and the device monitoring device 10-b in the sub mode is The device monitoring apparatus 10-a in the mode is monitored for the presence or absence of an abnormality (C11-2, C11-3, C11-4,...), And the device monitoring apparatus 10-a in the main mode includes all devices to be monitored. 11 collects monitoring information of the device 11 (C12-2, C12-3, C12-4,...), And transmits the monitoring information of the device 11 to the monitoring server 16 (C13-2, C13-3, C13-4, ...).

  Next, the operation of the device monitoring apparatus 10 at the time of abnormality due to timeout will be described. 7, 8, and 10, the main mode device monitoring device 10-a and the sub mode device monitoring device 10-b perform the above-described operation in the normal state (..., C11- n-1, C12-n-1, C13-n-1, C11-n, C12-n, C13-n), trouble TRB (communication in the communication line 18 of the main-mode device monitoring device 10-a and the upper NT3) When the above failure occurs, the main mode processing unit 111 of the device monitoring apparatus 10-a stops its operation, or the main mode processing unit 111 of the device monitoring apparatus 10-a performs steps S31 to S38. By executing the process, the normal state signal is returned, but it is not transmitted to the device monitoring apparatus 10-b in the sub mode.

  For this reason, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines that the current time is the current time in the process S61, executes the process S62 and the process S63 as necessary, and then performs the main mode in the process S65. A state confirmation request signal is transmitted to the device monitoring apparatus 10-a (C21-1), but a timeout occurs in step S66 (C22-1). As a result, the sub-mode processing unit 112 of the device monitoring apparatus 10-b collects the monitoring information of the device 11 from all the devices 11 to be monitored in the processing S67 and the processing S68, and the monitoring information of the device 11 collected in the processing S69. Is stored and saved in the monitoring information storage unit 124 (C23-1). Next, the sub-mode processing unit 112 of the device monitoring apparatus 10-b transmits the monitoring information of the device 11 collected in the processing S70 to the monitoring server 16, and returns the processing to the processing S61 (C24-1).

  The sub-mode device monitoring apparatus 10-b repeatedly executes such processing when an abnormality occurs due to a timeout, and the sub-mode device monitoring apparatus 10-b performs the main mode device monitoring apparatus 10-a every hour. Is monitored (C21-2,...), The monitoring information of the device 11 is collected from all the monitoring target devices 11 (C23-2,...), And the monitoring information of the device 11 is collected. It transmits to the monitoring server 16 (C24-2, ...). Since the device monitoring device 10-b in the sub mode operates in this way, even if an abnormality occurs in the device monitoring device 10-a in the main mode, the monitoring server 16 collects and accumulates monitoring information of the device 11. be able to.

  Next, the operation of the device monitoring apparatus 10 at the time of abnormality due to the state confirmation of the device monitoring apparatus in the main mode will be described. 7, 8, and 11, the main mode device monitoring device 10-a and the sub mode device monitoring device 10-b perform the above-described operation in the normal state (..., C11- n-1, C12-n-1, C13-n-1, C11-n, C12-n, C13-n), and the main mode device monitoring device 10-a is, for example, overloaded with a microprocessor. When the status is not normal, it will operate as follows.

  That is, the main mode processing unit 111 of the device monitoring apparatus 10-a determines whether or not it is the current time in the above-described process S31. If not, the process S51 and the process S52 are performed, and then the process proceeds to the process S31. Return. On the other hand, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines whether or not it is a correct time in the process S61. If not, it returns to the process S61 after executing the process S62.

  When the hour comes, the main mode processing unit 111 of the device monitoring apparatus 10-a executes processing S31 to processing 36 as in the above-described normal time, and determines whether it is normal in processing S37. Here, since it is an abnormal time, it is determined that it is not normal, and in step S43, a state abnormality signal is returned to the transmission source of the state confirmation request signal (C31-1). On the other hand, the sub-mode processing unit 112 of the device monitoring apparatus 10-b executes the processes S61 to S65 as in the above-described normal time, and determines whether or not the process 66 is normal. Here, since the response of the abnormal state signal is received, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines that it is not normal (C31-1).

  As a result, the sub-mode processing unit 112 of the device monitoring apparatus 10-b executes processing S67 and processing S68 to collect monitoring information of the devices 11 from all the devices 11 to be monitored, and collects the devices 11 collected in processing S69. Is stored and stored in the monitoring information storage unit 124 (C32-1). Next, the sub-mode processing unit 112 of the device monitoring apparatus 10-b transmits the monitoring information of the device 11 collected in the processing S70 to the monitoring server 16, and returns the processing to the processing S61 (C33-1).

  The device monitoring device 10-a in the main mode and the device monitoring device 10-b in the sub mode repeatedly execute such processing when an abnormality is detected by checking the state of the device monitoring device in the main mode. Then, at every hour, the main mode device monitoring apparatus 10-a confirms the state of the device itself and transmits a state abnormality signal to the sub mode device monitoring device 10-b (C31-2,...). ). On the other hand, the sub-mode device monitoring device 10-b monitors the presence / absence of an abnormality in the main-mode device monitoring device 10-a (C31-2,...), And the sub-mode device monitoring device 10-b The monitoring information of the device 11 is collected from all the devices 11 to be monitored (C32-2,...), And the monitoring information of the device 11 is transmitted to the monitoring server 16 (C33-2,...). Since the device monitoring device 10-b in the sub mode operates in this way, the monitoring server 16 collects and accumulates the monitoring information of the device 11 even if the device monitoring device 10-a in the main mode is not normal. be able to.

  Next, the operation of the device monitoring apparatus 10 at the time of recovery will be described. 7, 8, and 12, the main-mode device monitoring device 10-a and the sub-mode device monitoring device 10-b perform the above-described operation at the normal time (C 11 -n, C 12- n, C13-n), when trouble TRB occurs in the main-mode device monitoring device 10-a and the communication line 18 of the higher-order NT3, the above-described operation at the time of abnormality is performed, and the sub-mode device monitoring device 10- b monitors the presence / absence of an abnormality in the main-mode device monitoring apparatus 10-a (C21-n-1, C21-n) at every hour, and displays monitoring information on the devices 11 from all the devices 11 to be monitored. Collect (C23-n-1, C23-n), and send the monitoring information of the device 11 to the monitoring server 16 (C24-n-1, C24-n). When the trouble of the main mode device monitoring apparatus 10-a is recovered, the operation is as follows.

  That is, since the device mode monitoring apparatus 10-a in the main mode has recovered from the trouble, the main mode processing unit 111 of the device monitoring apparatus 10-a determines whether or not it is the current time in the above-described process S31. If not, the process returns to the process S31 after executing the processes S51 and S52. On the other hand, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines whether or not it is a correct time in the process S61. If not, it returns to the process S61 after executing the process S62.

  At the hour, the main mode processing unit 111 of the device monitoring apparatus 10-a performs the normal operation by executing the processing S31 to S42 (C11-n + 1, C12-n + 1, C13-n + 1), and then the processing. Return to S61. On the other hand, the sub-mode processing unit 112 of the device monitoring device 10-b also performs processing S61 to 66 to perform normal operation (C11-n + 1), but in step S71, the sub-mode processing unit 112 changes to the main mode device monitoring device 10-a. When it is determined that there is monitoring information of the device 11 to be transmitted, the sub-mode processing unit 112 of the device monitoring device 10-b transmits a data recovery request signal to the device monitoring device 10 in the main mode and waits for a reply. To do.

  And the main mode process part 111 of the apparatus monitoring apparatus 10-a will perform process S51 and process S52, if operation | movement at normal time is performed and it returns to process S61. As a result, it is determined in step S52 that the data recovery request signal has been received, and the main mode processing unit 111 of the device monitoring apparatus 10-a transmits a data recovery preparation completion signal to the transmission source of the data recovery request signal in step S53. To do.

  When receiving the reply of the data recovery preparation completion signal, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines that the data recovery preparation completion signal has been received in step S73. Thereby, completion of data recovery preparation is confirmed (C41). As a result, the sub-mode processing unit 112 of the device monitoring apparatus 10-b executes processing S74 and processing S75, thereby restoring all or one or more of the monitoring information of the device 11 stored in the monitoring information storage unit 124. The data transmission signal is transmitted to the device monitoring apparatus 10-a in the main mode. On the other hand, the main mode processing unit 111 of the device monitoring apparatus 10-a executes the processing S54 and the processing S55, so that all the monitoring information of the device 11 lost due to the occurrence of the trouble TBR is one or a plurality of recovery data transmission signals. Received from the device monitoring apparatus 10-b in the sub mode (C42).

  When the monitoring information of all the devices 11 is transmitted, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines that the monitoring information of all the devices 11 has been transmitted in the process S75, and the data transmission end notification is performed in the process S76. A signal is transmitted to the device monitoring apparatus 10 in the main mode, and the process returns to the process 61. On the other hand, when receiving the data transmission end notification signal, the main mode processing unit 111 of the device monitoring apparatus 10-a determines that the data transmission end notification signal has been received in step S55, and obtained in step S56 as the recovery data transmission signal. The monitoring information of the device 11 lost in the monitoring information of the device 11 is recovered, and the process returns to the process 31 (C43).

  As described above, the sub-mode device monitoring device 10-b starts from the device 11 on behalf of the main-mode device monitoring device 10 when a trouble occurs in the main-mode device monitoring device 10-a and then returns from the trouble. The collected monitoring information is transmitted to the device monitoring apparatus 10 in the main mode. The device monitoring apparatus 10-a in the main mode recovers the monitoring information of the device 11 that has been lost by the monitoring information of the device 11 transmitted from the device monitoring apparatus 10-b in the sub mode.

  In the above description at the time of restoration, the case where a trouble occurs in the main-mode device monitoring apparatus 10-a has been described. However, the main-mode device monitoring apparatus 10-a may become abnormal due to other causes. It is the same.

Next, another embodiment will be described.
(Configuration of Second Embodiment)
In the device monitoring device 10 according to the first embodiment, the sub-mode processing unit 112 monitors the main-mode device monitoring device 10 with respect to the main-mode device monitoring device 10, and the sub-mode processing unit 112 sends a status confirmation request signal to the main-mode device monitoring device 10. The device monitoring device according to the second embodiment (denoted by 10 ') is received by transmitting a state normal signal or a response of a state abnormal signal from the device monitoring device 10 in the main mode. Then, the monitoring of the device monitoring device 10 ′ in the sub mode with respect to the device monitoring device 10 ′ in the main mode is performed by the sub mode processing unit (reference numeral 112 ′) between the device monitoring device 10 ′ in the main mode and the device 11. By detecting communication between them.

  If the main mode device monitoring device 10 ′ is abnormal, no communication signal is transmitted and received between the main mode device monitoring device 10 ′ and the device 11, and therefore the main mode device monitoring device 10 ′. By monitoring the communication between the device 11 and the device 11, it is possible to monitor the presence or absence of abnormality in the device monitoring device 10 'in the main mode.

  For this reason, in the configuration of the device monitoring apparatus 10 ′ according to the second embodiment, the main mode processing unit (reference numeral 111 ′) and the sub mode processing unit 112 ′ in the control unit 101 operate as described later. Since it is the same as that of 1st Embodiment except that, the description is abbreviate | omitted.

Next, the operation of this embodiment will be described.
(Operation of Second Embodiment)
In the device monitoring apparatus 10 ′ according to the second embodiment, only the monitoring method of the device monitoring apparatus 10 ′ in the sub mode with respect to the device monitoring apparatus 10 ′ in the main mode is different. Since it is the same as that of embodiment, the description is abbreviate | omitted.

  Next, the main mode process will be described. FIG. 13 is a flowchart showing main mode processing in the second embodiment. In the device monitoring device 10 ′ according to the second embodiment, the sub-mode device monitoring device 10 ′ monitors the main-mode device monitoring device 10 ′ with respect to the main-mode device monitoring device 10 ′. Since it is performed by detecting communication between 10 'and the device 11, like the device monitoring apparatus 10 according to the first embodiment, it waits for reception of a state confirmation request signal, confirms its own state, and this It is not necessary to transmit a state normal signal or a state abnormal signal according to the confirmation result.

  That is, as shown in FIG. 13, the main mode processing unit 111 ′ determines whether or not it is the correct time in the process S31, and determines that it is the correct time in the process S31, the process S32 and the process S33 as necessary. Immediately after execution, processing S39, processing S40, processing S41, and processing S42 are executed, and the processing returns to processing S31. In other words, the main mode processing unit 111 ′ collects monitoring information from all the devices 11 to be monitored in the processing S39 and the processing S40 after adjusting the time as necessary when it is at the correct time. The monitoring information of the device 11 collected with the month, date and time information attached in S41 is stored in the monitoring information storage unit 124 and transmitted to the monitoring server 16 in step S42. Thus, the device monitoring apparatus 10 set to the main mode centrally monitors the device 11.

  On the other hand, if it is determined in S31 that the time is not correct, the main mode processing unit 111 ′ executes the processes S51 to S56. Since these processes are the same as those in the first embodiment, Description is omitted.

  Next, sub mode processing will be described. FIG. 14 is a flowchart showing sub-mode processing in the second embodiment. In the device monitoring device 10 ′ according to the second embodiment, the sub-mode device monitoring device 10 ′ monitors the main-mode device monitoring device 10 ′ with respect to the main-mode device monitoring device 10 ′. Since this is performed by detecting communication between 10 ′ and the device 11, the device in the main mode is used instead of executing the process S65 of transmitting the status confirmation request signal in the device monitoring apparatus 10 according to the first embodiment. This is the same as the first embodiment except that the process S81 for detecting communication between the monitoring device 10 ′ and the device 11 is executed.

  That is, as shown in FIG. 14, the sub-mode processing unit 112 ′ determines whether or not it is a correct time in the process S61. If it is determined that the time is not correct, the sub-mode processing unit 112 ′ processes the process after executing a predetermined time wait in a process S62. Return to S61. On the other hand, if it is determined in the processing S61 that it is the hour, the sub-mode processing unit 112 'executes the processing S81 after executing the processing S63 and the processing S64 as necessary.

  In step S81, the sub-mode processing unit 112 'checks the communication state of the lower NT2 for a predetermined time, and executes step S66. In this embodiment, since RS485 is used for the lower NT2, the submode processing unit 112 ′ determines whether the lower NT communication interface unit 114 has received a communication signal between the device monitoring apparatus 10 ′ and the device 11 in the main mode. By determining whether or not, communication between these is detected. If a communication signal is received within a predetermined time as a result of the detection, the sub-mode processing unit 112 'determines that the main-mode device monitoring device 10' is normal. On the other hand, if the communication signal is not received within a predetermined time as a result of the detection, the sub-mode processing unit 112 'determines that the main-mode device monitoring device 10' is abnormal. The predetermined time is determined according to the specification, but an order of 100 milliseconds, such as 100 milliseconds, 200 milliseconds, and 500 milliseconds, is employed.

  If it is determined that the process is abnormal (YES), the sub-mode processing unit 112 ′ executes processes S67 to S70, which are the same as those in the first embodiment. The description is omitted. As described above, when the main mode device monitoring device 10 ′ is abnormal, the sub-mode processing unit 112 ′ performs processing S61, processing S63, (processing S64), processing S81, processing S66, processing S67, processing S68, By executing the process S69 and the process S70, the monitoring information is collected from all the devices 11 to be monitored, and the monitoring information collected with the month, date and time information is stored in the monitoring information storage unit 124. Transmit to the monitoring server 16. In this way, the device monitoring device 10 ′ set to the sub mode centrally monitors the device 11 on behalf of the device monitoring device 10 ′ in the main mode when the device monitoring device 10 ′ in the main mode is abnormal. To do.

  On the other hand, when it is determined that the process is abnormal (NO), the sub-mode processing unit 112 ′ executes the processes S71 to S76, which are the same as those in the first embodiment. The description is omitted. As described above, when the main mode device monitoring apparatus 10 returns to normal after the main mode device monitoring apparatus 10 becomes abnormal, the sub-mode processing unit 112 ′ performs processing S61, processing S63, (processing S64), processing S81, processing S66, and processing S71. By executing the processing S72, processing S73, processing S74, processing S75 and processing S76, the monitoring information collected from the device 11 on behalf of the main mode device monitoring device 10 ′ is transferred to the main mode device monitoring device 10 ′. Send.

  Next, the operation of the device monitoring apparatus 10 described above will be described more specifically with reference to a sequence diagram separately for a normal time and an abnormal time. In addition, since it is the same as that of 1st Embodiment at the time of recovery | restoration, the description is abbreviate | omitted. In addition, the initial setting process and the activation process are the same as those in the first embodiment, and a description thereof will be omitted.

  FIG. 15 is a sequence diagram illustrating an operation of the device monitoring system in a normal time and an abnormal time in the second embodiment. As in the first embodiment, it is assumed that the device monitoring device 10-a is set to the main mode and the device monitoring device 10-b is set to the sub mode.

  First, the operation of the device monitoring apparatus 10 'during normal operation will be described. In the normal time, in FIGS. 13 to 15, the main mode processing unit 111 ′ of the device monitoring apparatus 10 ′ -a determines whether or not it is the normal time in the above-described process S <b> 31. After executing S51 and S52, the process returns to S31. On the other hand, the sub-mode processing unit 112 of the device monitoring apparatus 10-b determines whether or not it is a correct time in the process S61. If not, it returns to the process S61 after executing the process S62.

  At the correct time, the main mode processing unit 111 ′ of the device monitoring apparatus 10′-a determines that it is the correct time in the process S31, executes the process S32 and the process S33 as necessary, and then performs the process S39 and the process S40. The monitoring information of the device 11 is collected from all the devices 11 to be monitored, and the monitoring information of the device 11 collected in the process S41 is stored and stored in the monitoring information storage unit 124 (C51-1). Next, the main mode processing unit 111 ′ of the device monitoring apparatus 10′-a transmits the monitoring information of the device 11 collected in the processing S42 to the monitoring server 16 and returns the processing to the processing S31 (C53-1). .

  On the other hand, the sub-mode processing unit 112 ′ of the device monitoring apparatus 10′-b determines that it is the hour in the process S61, executes the process S62 and the process S63 as necessary, and then performs the communication state of the lower NT2 in the process S81. Is confirmed (C52-1). Here, since it is normal time, a communication signal between the device monitoring device 10′-a in the main mode and the device 11 is received, and the sub-mode processing unit 112 ′ of the device monitoring device 10′-b performs processing S66. In step S71, the process returns to step S61 after executing step S71.

  The main-mode device monitoring device 10'-a and the sub-mode device monitoring device 10'-b repeatedly execute such processing in normal times, and the sub-mode device monitoring device 10'-b every hour. Monitors the presence / absence of a failure in the main mode device monitoring apparatus 10'-a by confirming the communication state of the lower NT2 (C52-1). The main mode device monitoring apparatus 10'-a The monitoring information of the device 11 is collected from all the devices 11 (C51-1), and the monitoring information of the device 11 is transmitted to the monitoring server 16 (C53-1).

  Next, the operation of the device monitoring apparatus 10 'at the time of abnormality will be described. 13 to 15, the main-mode device monitoring device 10′-a and the sub-mode device monitoring device 10′-b perform the above-described operations in the normal state (C51-1, C52-1). , C53-1), when an abnormality occurs in the main mode device monitoring apparatus 10′-a, there is no communication signal transmitted / received between the main mode device monitoring device 10′-a and the device 11.

  For this reason, the sub-mode processing unit 112 ′ of the device monitoring apparatus 10′-b determines that it is the correct time in the process S61 at the correct time, executes the process S62 and, if necessary, the process S63, and then in the process S81. The communication state of the lower NT2 is confirmed (C52-2), but no communication signal is detected, and it is determined that there is an abnormality in step S66. As a result, the sub-mode processing unit 112 ′ of the device monitoring apparatus 10′-b collects the monitoring information of the device 11 from all the devices 11 to be monitored in the processing S67 and the processing S68, and the device 11 collected in the processing S69. The monitoring information is stored and saved in the monitoring information storage unit 124 (C54-1). Next, the sub-mode processing unit 112 ′ of the device monitoring apparatus 10 ′ -b transmits the monitoring information of the device 11 collected in the process S <b> 70 to the monitoring server 16 and returns the process to the process S <b> 61 (C <b> 55-1).

  The sub-mode device monitoring apparatus 10'-b repeatedly executes such processing at the time of abnormality, and monitors the presence / absence of abnormality in the main-mode device monitoring apparatus 10'-a every hour (C52-3). , C52-4,...), Monitoring information of the device 11 is collected from all the devices 11 to be monitored (C54-2, C54-3,...), And the monitoring information of the device 11 is collected by the monitoring server 16. (C55-2, C55-3,...). Since the device monitoring device 10′-b in the sub mode operates in this way, even if an abnormality occurs in the device monitoring device 10′-a in the main mode, the monitoring server 16 collects the monitoring information of the device 11, Can be accumulated.

  As described above, in the second embodiment, the sub-mode device monitoring device 10 ′ detects communication between the main-mode device monitoring device 10 ′ and the device 11, thereby detecting the communication in the main mode device monitoring device 10 ′. Since the presence / absence of abnormality is monitored, the main-mode device monitoring device 10 ′ can perform the operation without being particularly aware of the sub-mode device monitoring device 10 ′. Therefore, the device monitoring apparatus 10 ′ according to the second embodiment is suitable for a case where the device monitoring system 10 ′ is installed in the device monitoring system 1 as a sub-mode device monitoring apparatus 10 ′.

It is a figure which shows the structure of an apparatus monitoring system. It is a block diagram which shows the structure of an apparatus monitoring apparatus. It is a figure which shows the structure of the monitoring information table which registers monitoring information. It is a figure which shows a basic information setting page. It is a figure which shows an operation information setting page. It is a flowchart which shows operation | movement of a starting process. It is a flowchart which shows the main mode process in 1st Embodiment. It is a flowchart which shows the submode process in 1st Embodiment. It is a sequence diagram which shows operation | movement of the apparatus monitoring system at the normal time in 1st Embodiment. It is a sequence diagram which shows operation | movement of the equipment monitoring system at the time of abnormality by timeout in 1st Embodiment. It is a sequence diagram which shows operation | movement of the equipment monitoring system at the time of abnormality by the state confirmation of the equipment monitoring apparatus of the main mode in 1st Embodiment. It is a sequence diagram which shows operation | movement of the equipment monitoring system at the time of recovery in 1st Embodiment. It is a flowchart which shows the main mode process in 2nd Embodiment. It is a flowchart which shows the submode process in 2nd Embodiment. It is a sequence diagram which shows operation | movement of the apparatus monitoring system at the time of normal time and abnormality in 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Device monitoring system 2 Lower network 3 Upper network 10 Device monitoring apparatus 16 Monitoring server 101 Control part 102 Upper network communication interface part (an example of a 2nd communication part)
103 storage unit 104 lower network communication interface unit (example of first communication unit)
111, 111 ′ Main mode processing unit 112, 112 ′ Sub mode processing unit 113 Startup processing unit 114 Initial setting processing unit 115 Calendar unit 121 Mode information storage unit 122 Basic information storage unit 123 Operation information storage unit 124 Monitoring information storage unit 125 Initial Setting information storage

Claims (6)

A device monitoring device for monitoring a device to be monitored ,
A first communication unit for communicating with the monitored device;
A second communication unit for communicating with a monitoring server that accumulates monitoring information related to the device to be monitored;
A mode information storage unit for storing mode information indicating one of the main mode and the sub mode;
When the mode information is a main mode, the monitoring information is collected from the monitored device using the first communication unit, and the collected monitoring information is transmitted to the monitoring server using the second communication unit. A main mode processing unit to
When the mode information is a sub-mode and the mode information is recognized as an abnormality of the device monitoring device in the main mode, the first communication unit is used instead of the device monitoring device in which the abnormality occurs. A sub-mode processing unit that collects monitoring information from a device to be monitored, and transmits the collected monitoring information to the monitoring server using the second communication unit;
The main mode processing unit is activated when the mode information indicates a main mode, and the activation processing unit is activated to activate the sub mode processing unit when the mode information indicates a sub mode. Equipment monitoring device. The sub-mode processing unit, based on the response by sending a status confirmation request signal for confirming the state of own apparatus with respect to the equipment monitoring device wherein the mode information is the main mode, the mode information is the main mode Determine whether a device monitoring device is abnormal,
The main mode processing unit, when receiving the state confirmation request signal, confirms the state of the own device and returns a response signal indicating the result to the transmission source of the state confirmation request signal. Item 1. The device monitoring apparatus according to Item 1. The sub-mode processing unit, said mode information based on the presence or absence of communication between the equipment monitoring device, which is the main mode and the monitored device, said mode information is abnormal equipment monitoring device is the main mode The device monitoring apparatus according to claim 1, wherein it is determined whether or not. A monitoring information storage unit for storing the monitoring information;
The sub-mode processing unit is configured to further store the monitoring information storage unit monitoring information the collection, if the mode information is recognized to be normal after recognizing the equipment monitoring device, which is the main mode is abnormal in the the collected monitoring information from the monitoring target device, further transmitted to the equipment monitoring device wherein the mode information is the main mode until the time of recognizing a normal from said upon recognizing said abnormality,
The main mode processing unit further stores the collected monitoring information in the monitoring information storage unit, and receives monitoring information collected from the monitored device from a device monitoring apparatus whose mode information is a sub mode. The device monitoring apparatus according to claim 1, further comprising: storing the received monitoring information in the monitoring information storage unit. The activation processing unit acquires information on the monitored device and information on the monitoring server from a device monitoring apparatus whose mode information is a main mode when the sub-mode processing unit is activated. The device monitoring apparatus according to claim 1. One or more devices;
Two device monitoring devices that use the one or more devices as devices to be monitored;
In a device monitoring system comprising: a monitoring server capable of collecting monitoring information in the one or a plurality of devices from the two device monitoring devices and storing the collected monitoring information;
The device monitoring system according to any one of claims 1 to 5, wherein the two device monitoring devices are the device monitoring devices according to any one of claims 1 to 5.

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