JP2005184145A - Remote monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote monitoring system capable of saving the costs of equipment without using any dedicated telecommunication lines, and performing restoration at an early stage by allowing at least one of a monitoring center and a monitoring device to recognize a failed location at the side of a device to be monitored at an early stage. <P>SOLUTION: The remote monitoring system 10 comprises a group of monitoring devices 13 for monitoring a group of devices 11 to be monitored, the monitoring center 12 for integrally monitoring the group of monitoring devices 13, and a public circuit network 14 for communicatively connecting the monitoring center 12 to the group of monitoring devices 13. The group of monitoring devices 13 have a monitoring device-side calculator 18. The monitoring device-side calculator 18 sets a prescribed monitoring reference value to monitor the running conditions of the operation control, or the like of the group of devices 11 to be monitored, and generates a monitoring data signal x3 for transmitting to the side of the monitoring center 12 when the threshold of the monitoring reference value is exceeded. The monitoring center 12 has a calculator 30 at the monitoring center side for receiving the monitoring data signal x3 generated at the side of the group of monitoring devices 13 via the public circuit network 14 for reproduction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a remote monitoring system that remotely monitors operation statuses such as operation control and failure in a central monitoring center for a plurality of components in monitored devices such as water and sewage systems, buildings, and industrial monitoring and control systems.

  Conventionally, as this type of remote monitoring system, communication connection is established between the monitoring center side and the on-site monitoring device side, and the operating status of the monitored device side is captured by the monitoring device and transmitted to the monitoring device side. In some cases, the operation status of the monitored device is monitored.

  An example of such a monitoring system is disclosed in Japanese Patent Laid-Open No. 5-64270 (Patent Document 1).

  According to Patent Document 1, as shown in FIG. 4 of the accompanying drawings, a monitoring system 1 includes a monitoring center 2 having a function as a parent device, a monitoring device 3 having a function as a child device, and a monitoring center. 2 and the monitoring device 3 are connected by a dedicated communication line 4.

  The monitoring center 2 captures a test message transmission processing unit 5 that periodically transmits a test message, a test message signal transmitted by the test message transmission processing unit 5 and a state change of the monitoring center 2. A data control unit 6 for distinguishing a state change signal to be automatically transmitted, a state change data transmission processing unit for detecting a state change signal and instructing stop of transmission of a test message signal, and outputting a failure content to the personal computer 9 side 7.

  When the monitoring center 2 and the monitoring device 3 are turned on, the test message signal transmitted from the test message transmission processing unit 5 on the monitoring center 2 side at a constant cycle is confirmed by the data control unit 6, and the data transmission / reception unit 8 is dedicated. The data is transmitted to the monitoring device 3 side via the communication line 4.

  The monitoring device 3 has the same configuration as that of the monitoring center 2 provided so as to be able to monitor the operating status of a plurality of monitored devices provided on the site side, and can simultaneously function as a master unit. belongs to. That is, the monitoring device 3 has the same configuration as that of the monitoring center 2 side except that the personal computer 9 is not provided.

  With such a configuration, when the monitoring center 2 and the monitoring device 3 are turned on, the test message notified from the test message transmission processing unit 5 on the monitoring center 2 side is confirmed by the data control unit 6 and the data is transmitted. The data is transmitted to the monitoring device 3 side via the transmission / reception unit 8 and the dedicated communication line 4 and received by the data transmission / reception unit 8 on the monitoring device 3 side. The data control unit 6 determines whether the received data is state change data or a test message from the data string, and can confirm normal operation on the monitoring center 2 side.

  Similarly, since the monitoring device 3 has the same function, a response test message signal is returned to the monitoring center 2 side in response to the test message signal from the monitoring center 2 side.

On the monitoring center 2 side, the normal operation on the monitoring device 3 side can be confirmed by the returned response test message signal. In this way, a self-diagnosis function by cooperation between the monitoring center 2 and the monitoring device 3 is provided.
JP-A-5-64270 (page 2, right column, lines 4 to 42 and FIG. 1)

  According to the configuration shown in Patent Document 1, not only monitoring of the system state at the time of power-on but also a self-diagnosis function during operation enables early detection of a fault or fault location and unattended by the personal computer 9 Since the failure occurrence can be recorded, the system can be quickly rescued and dealt with early.

  However, according to the conventional remote monitoring system 1, the dedicated communication line 4 for connecting the monitoring center 2 and the monitoring device 3 must be provided. Therefore, in addition to the equipment costs, maintenance costs for the maintenance are always required.

  Further, the system configuration is such that one of the monitoring center 2 and the monitoring device 3 can make early detection of the other fault or fault location, but it is unclear where the fault has occurred. Therefore, it is necessary to confirm the presence / absence of an abnormality in the entire failure part, which is extremely inconvenient and requires an unnecessary confirmation time.

  The present invention has been made in view of the above circumstances, can save equipment costs and at least one of the monitoring center and the monitoring device, so that an abnormal location on the monitored device side can be recognized early, An object of the present invention is to provide a remote monitoring system capable of performing restoration earlier.

  To achieve the above object, according to the present invention, a monitoring device group for monitoring a monitored device group, a monitoring center for monitoring the monitoring device group in an integrated manner, and communication between the monitoring center and the monitoring device group The monitoring device group is set with a predetermined monitoring reference value for monitoring the operation status of the monitored device group, such as operation control, and the threshold value of the monitoring reference value is exceeded. A monitoring device computer that generates a monitoring data signal and transmits the monitoring data signal to the monitoring center in the event that the monitoring data signal is transmitted to the monitoring center side via the public line network. A remote monitoring system comprising a monitoring center computer that receives and reproduces data.

  To achieve the above object, according to the present invention, a monitoring device group for monitoring a monitored device group, a monitoring center for monitoring the monitoring device group in an integrated manner, and communication between the monitoring center and the monitoring device group And a monitoring reference value threshold value is set in the monitoring device group in order to monitor the operating status such as the operating state of the monitored device group side. A monitoring device side computer that generates a monitoring data signal and transmits the monitoring data signal to the monitoring center side in the case described above is provided, and the monitoring device side computer includes a portable terminal based on an abnormal signal generated on the monitoring device group side. There is provided a remote monitoring system characterized by comprising emergency call means capable of receiving an abnormal call signal on the side.

  In order to achieve the above object, according to the present invention, a monitoring device group for monitoring a group of monitored devices, a monitoring center for monitoring the monitoring device group, and a public for communication connection between the monitoring center and the monitoring device group A predetermined monitoring reference value is set in the monitoring device group in order to monitor the operation status such as the operating state of the monitored device group, and the threshold value of the monitoring reference value is exceeded. A monitoring device computer that generates a monitoring data signal and automatically transmits it to the monitoring center, and the monitoring center receives the monitoring data signal generated on the monitoring device group side via the public network. And a monitoring center computer to be regenerated, and the monitoring center computer is provided with an abnormality confirmation means that enables confirmation of an abnormality when an abnormality occurs on the monitoring center and monitoring device group side. Features To provide the over door monitoring system.

  According to the present invention, when an installation of an abnormality occurs in at least one of the monitoring center and the monitoring device and the operation is not performed while the equipment cost is reduced without using a dedicated communication line, the abnormal part is detected early. A remote monitoring system that can be restored at an early stage can be provided.

  An embodiment of a remote monitoring system according to the present invention will be described with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a diagram showing a first embodiment of a remote monitoring system of the present invention.

  The remote monitoring system 10 according to the first embodiment is configured to indicate the operating status such as an operating state, a failure, etc., or an abnormal situation when an abnormality occurs for the component devices in the monitored device group 11 such as an industrial monitoring / control system. This is a system that enables integrated remote monitoring at a central monitoring center 12 based on operating status data. The remote monitoring system 10 includes a plurality of monitored device groups 11 that are distributed in a distributed manner, a monitoring device group 13 (13a to 13n) that performs monitoring while acquiring operating status data on the monitored device group 11 side, and this monitoring device. A monitoring center 12 that collectively and remotely monitors the group 13 and a public line network 14 that connects the monitoring center 12 and the monitoring device group 13 via communication lines y7 and y6. .

  The monitored device group 11 is a plurality of monitored devices 11a to 11n each connected in parallel to the LAN 15 side. The monitored devices 11a to 11n are connected to the monitoring devices 13a to 13n, respectively.

  Since the plurality of monitored devices 11a to 11n have the same configuration, the monitored device 11a will be described as a representative.

  The monitored device 11a includes a controller group 16 (16a to 16n) provided corresponding to a plurality of component devices (not shown), and a data display device 17 that displays the operation status of each component device using, for example, a graphic image. Yes. The data display device 17 is configured to receive and display data on the operation status data signal group x1 (x1a to x1n) of the monitored device group 11 received from the controller group 16 side.

  The monitoring device group 13 includes a plurality of monitoring devices 13a to 13n having the same configuration, and each of the monitoring devices 11a to 11n having a corresponding relationship is monitored.

  For example, the monitoring device 13a can acquire the operating status of the monitored device 11a by operating status data signals x1a to x1n. That is, the monitoring device 13a can capture the operating status of the monitored device 11a by the controller group 16 provided on the monitored device 11a side and generate the operating status data signal group x1 (x1a to x1n). The monitoring device 13a receives the generated operation status data signal group x1 from the controller group 16 side.

  The monitoring device 13a includes a monitoring device side computer, for example, a monitoring device side personal computer (hereinafter referred to as a device side personal computer) 18, a router 19 connected from the device side personal computer 18 side via a communication line y5, and the router. The public network 14 is connected to the 19 side through a communication line y6. The device-side personal computer 18 of the monitoring device 13a is connected to the data processing device 20 that is communicably connected from the monitored device 11a side via the communication line y1, and the monitoring data that is communicably connected to the data processing device 20 via the communication line y2. A signal generator 21 and a data memory 22 connected to the monitoring data signal generator 21 via a communication line y11 are provided.

  The monitoring data signal generator 21 is communicatively connected from the signal processing device 24 via the communication line y3 to the signal processing device 24 communicatively connected via the communication line y2 communicatively connected to the data processing device 20 side. The notification processing device 25 and a line processing device 26 connected to the notification processing device 25 via a communication line y4 are configured.

  The signal processing device 24 receives the processed data signal x2 from the data processing device 20 side through the communication line y2, and transmits an operation state numerical data signal x31 obtained by digitizing the processed data signal x2 to the notification processing device 25 side. It is. If it is equal to or less than the threshold value, the operation status numerical data signal x31 is transmitted to the line processing device 26 as it is.

  The notification processing device 25 receives the operation status numerical data signal x31 through the communication line y3, and generates a notification signal x32 when the value is equal to or greater than a predetermined threshold value as a predetermined monitoring reference value.

  The line processing device 26 receives the operation status numerical data signal x31 or the notification signal x32 from the notification processing device 25 side through the communication line y4, and generates a monitoring data signal x3 formatted so as to be transmitted to the monitoring center 12 side. On the other hand, when the notification signal x32 is received, it is transmitted to the monitoring center 12 side via the router 19 and the public line network 14, and for example, a sound or an image is reproduced to notify the abnormality.

  The monitoring data signal generator 21 is connected to a data memory 22 that stores the monitoring data signal x3 output from the monitoring data signal generator 21 in a callable manner via a communication line y11. The monitoring data signal x3 stored in the data memory 22 can be called and displayed on a display device (not shown) of the device-side personal computer 18 as required by the operator.

  The monitoring center 12 includes a monitoring center side computer, for example, a monitoring center side personal computer (hereinafter referred to as a center side personal computer) 30 and a router 31 that is connected for communication from the center side personal computer 30 side via a communication line y8. .

  The center-side personal computer 30 includes a monitoring data signal regenerator 32 that regenerates the monitoring data signal x3 received by the monitoring center 12 from the monitoring device 13a side into predetermined data, for example, between the monitoring data signal regenerator 32 and the router 31. Abnormality confirmation means provided for confirming the network connection between the processing apparatuses, for example, a ping operation means 33 using a ping technique, and a monitoring data signal x3 on the monitored apparatus 11a side on the monitoring apparatus 13a side are automatically and periodically transmitted. The periodic data acquisition device 34 provided for acquisition and a data memory 35 for storing the acquired monitoring data signal x3 in a callable manner.

  The monitoring data signal regenerator 32 is connected to the router 31 via the communication line y8. The monitoring data signal regenerator 32 formats the received monitoring data signal x3 individually for each data signal to generate an individual monitoring data signal x41. The signal processing device 37 is connected to the line processing device 36 via the communication line y9, receives the individual monitoring data signal x41, and generates a data processing signal x42 converted into a data processing signal, and the signal processing device 37. And a data display device 38 for displaying data (operation status data of components of the monitored device 11a) as a graphic image.

  In addition, when the monitoring center 12 receives the notification signal x32 from the monitoring device 13a side, the monitoring center 12 displays the status of the abnormality on the monitoring device 13a side on the data display device 38 on the monitoring data signal regenerator 32 side. I have to.

  The ping operation means 33 is provided to check whether there is an abnormality in the network connection state between the devices in the monitoring center 12 and between the monitoring center 12 and the monitoring device group 13. The ping operation means 33 is a confirmation means using a ping technique to confirm in which part on the monitoring device 13a side an abnormality has occurred when the alarm signal x32 is received on the monitoring center 12 side. is there.

  The confirmation of the abnormal location is made, for example, by the presence or absence of normal operation of the line processing device 36 itself, the normal operation or non-operation of the router 31 connected from the line processing device 36 via the communication line y8, and the communication line y8. The line connection state, the presence or absence of normal operation of the router 19 on the monitoring device 13a side connected via the router 31 and the public line network 14 from the line processing device 36, the line connection state of the communication lines y7 and y6, Also, starting from the line processing device 36, the presence or absence of abnormality in the line processing device 26 of the monitoring data signal generator 21 and the presence or absence of abnormality in the line connection state of the communication line y5 are confirmed.

  The ping operation means 33 makes a ping request to each location with the ping signals z1 to z4 in order to confirm these. Then, by the ping response in the line connection state in response to the ping request from the ping operation means 33 side, an operation is carried out to find out the abnormal part and further investigate the cause of the abnormality.

  The periodic data acquisition device 34 automatically acquires the data processing signal x42 generated by the monitoring data signal regenerator 32 at a fixed time or every predetermined operation integration time, and generates a periodic data acquisition signal x5 in accordance with the timing. The data can be output to the monitoring device 13a side via the monitoring data signal regenerator 32 and the router 31.

  The monitoring device 13a can transmit the monitoring data signal x3 generated by the monitoring data signal generator 21 to the monitoring center 12 side at the timing when the periodic data acquisition signal z5 is received from the monitoring center 12 side. That is, when the monitoring device 13a receives the regular data acquisition signal z5, the monitoring data signal generator 21 is activated and the latest monitoring data signal x3 stored in the data memory 22 is transmitted to the monitoring center 12 side. ing.

  The data memory 35 can store the data processing signal x42 generated by the monitoring data signal regenerator 32 based on the monitoring data signal x3 so as to be callable.

  Note that the configurations of the monitored devices 11b to 11n are the same as the configuration of the monitored device 11a, and thus the description thereof is omitted. The configuration of the monitoring devices 13b to 13n is the same as the configuration of the monitoring device 13a, and a description thereof will be omitted.

  Next, the operation of the remote monitoring system 10 will be described with reference to FIG. 1 and FIG.

  Since the monitored devices 11a to 11n of the monitored device group 11 perform the same operation, the monitored device 11a will be described as an example.

  When the component device enters the operation state, the controllers 16a to 16n provided in each component device of the monitored apparatus 11a generate an operation state data signal x1a including the operation state data such as the operation state of the component device, and monitor it. It is transmitted to the device 13a side. At the same time, the operation status data signal x1a is displayed as data, for example, as a graphic image on the data display device 17 of the monitored device 11a.

  The monitoring apparatus 13a that has received the operation status data signal x1a receives the data at the data processing apparatus 20 of the apparatus-side personal computer 18 and outputs a processed data signal x2. The monitoring data signal generator 21 receives the output processed data signal x2 through the communication line y2.

  The monitoring data signal generator 21 outputs an operation status numerical data signal x31 based on the received processed data signal x2. The alarm processing device 25 receives the output operating condition numerical data signal x31 through the communication line y3, and generates the alarm signal x32. The line processing device 26 receives the notification signal x32 through the communication line y4.

  The line processing device 26 that has received the alert signal x32 generates a monitoring data signal x3 and transmits it to the router 19 side through the communication line y5. The router 19 transmits the monitoring data signal x3 to the router 31 on the monitoring center 12 side through the public line network 14.

  On the other hand, the monitoring data signal x3 received on the monitoring center 12 side is transmitted to the monitoring data signal regenerator 32 side through the router 31. The monitoring data signal x 3 received by the monitoring data signal regenerator 32 generates an individual monitoring data signal x 41 by the line processing device 36 and is transmitted to the signal processing device 37.

  The signal processing device 37 that has received the individual monitoring data signal x41 generates a data processing signal x42 and transmits it to the data display device 38. The data display device 38 that has received the data processing signal x42 displays the operation status on the monitored device 11a side included in the data processing signal x42 as a graphic image. At the same time, the data processing signal x42 is stored in the data memory 35 so that it can be called from the monitoring data signal generator 21 side.

  Next, when the operator performs an operation to display and display desired data on the apparatus-side personal computer 18, the desired data is displayed on a display device (not shown). Further, the periodic data acquisition signal z5 is reproduced as a monitoring data signal when a predetermined time has elapsed since the component device of the monitored apparatus 11a was started and when a predetermined cumulative time has elapsed since the predetermined component device was started. The data is transmitted to the monitoring device 13a via the device 32 and the router 31.

  The monitoring device 13a transmits the monitoring data signal x3 to the monitoring center 12 side in accordance with the timing at which the regular data acquisition signal z5 is received. Therefore, the operation status of the component device on the monitored device 11a side is displayed on the data display device 38 of the monitoring data signal regenerator 32 in accordance with the above timing.

  On the other hand, when the remote monitoring system 10 is in normal operation, if an abnormality occurs on the monitoring device 13a side and the alarm signal x3 is transmitted to the monitoring center 12 side, the state of this abnormality is displayed on the data display device 38. Displayed. Therefore, it is possible to recognize the abnormal situation on the Chinese poetry device 13a side as a handler.

  When this situation is recognized by the operator, it is necessary for the operator to immediately confirm the cause and start the repair work. Therefore, while the operator recognizes this state, the operator operates the ping operation means 33 of the center side personal computer 30 as the operator.

  In this operation, a ping request is made sequentially or randomly to any device between the monitoring center 12 and the monitoring device 13a, and the presence or absence of a ping response to this ping request is confirmed one by one. By this confirmation work, it is possible to confirm the abnormal state over the entire remote monitoring system 10. The target range of the ping request may be, for example, the monitoring center 12, the line processing device 36 and the router 31 on the monitoring center 12 side, the monitoring device 13a, the router 19 and the line processing device 26 on the monitoring device 13a side. it can.

  The ping request procedure will be described with reference to FIG.

  It is assumed that the operator confirms the abnormal state by the alarm signal x32 during remote monitoring using the data display device 38 of the remote monitoring system 10. The operator operates the ping operation means 33 of the center side personal computer 30 on the monitoring center 12 side to make a ping request. Based on the ping request, it is confirmed whether or not there is a ping response from the line processing device 36 on the monitoring center 12 side. If there is a ping response, the line processing device 36 recognizes that it is normal <step 1>.

  If there is no ping response, a ping request is sent to the center side personal computer 30.

  If there is a response to this ping request, it is confirmed that there is an abnormality in the application software of the center side personal computer 30 and at the same time that there is no abnormality in the apparatus system <step 2>.

  If there is no ping response, a ping request is sent to the router 31 on the monitoring center 12 side. If there is a ping response in response to this ping request, it is confirmed that there is an abnormality in the device system or communication system from the monitoring center 12 side to the router 31 <Step 3>.

  If there is no ping response, a ping request is sent to the router 19 on the monitoring device 13a side. If there is a ping response according to this ping request, it is confirmed that there is a device system abnormality or a communication system abnormality from the monitoring device 13a side to the router 19 <step 4>.

If there is no ping response, a ping request is made to the apparatus-side personal computer 18. If there is a ping response in response to this ping request, it is confirmed that there is an abnormality in the apparatus system or communication system from the monitoring center 12 side to the apparatus side personal computer 18 <Step 5>.

  If there is no ping response, it is confirmed that the apparatus system of the apparatus side personal computer 18 is abnormal (step 6).

  If there is no response in the process of <Step 1> to <Step 6>, the communication lines y1 to y10 and the LAN 15 may be disconnected or defective, so these checks are performed separately. .

  By performing the above <Step 1> to <Step 6>, it is possible for the operator to recognize where an abnormality has occurred between the monitoring center 12 side and the monitoring device 13a side. Therefore, when an abnormality occurs in at least one of the device system and the communication system between the monitoring center 12 and the monitoring device 13a during the operation of the remote monitoring system 10, the operator immediately identifies the abnormality location. This part can be repaired quickly and reliably.

  According to the remote monitoring system 10, when an abnormality occurs on the monitoring center 12 and the monitoring device group 13 side, a ping operation means 33 by an operation of a computer, for example, the monitoring center side personal computer 30 is used as an abnormality confirmation means. For example, an abnormality detector (not shown) separate from the computer may be used to detect and confirm the abnormal situation.

  Further, according to the remote monitoring system 10, when the monitoring center 12 side acquires the data of the operation status of the component device on the monitoring device 11a side, the periodic data acquisition device 34 on the center side personal computer 30 side automatically and periodically. However, this can be arbitrarily acquired by the operator.

  For example, an acquisition switch button (not shown) that can be arbitrarily operated is installed in the center-side personal computer 30. Then, the operator may receive the data processing signal x42 by an arbitrary operation and acquire the operation status data.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.

  A remote monitoring system 50 according to the second embodiment will be described with reference to FIG. 3 in which the same parts as those in FIG. 1 showing the first embodiment are denoted by the same reference numerals.

  Compared with the remote monitoring system 10 in the first embodiment, the remote monitoring system 50 in the second embodiment is a monitoring center when an abnormality occurs on the monitoring device 13a side while the monitoring device group 13 side is operating. Even when there is no handler on the 12th side, it is possible to report directly to the handler that the above abnormality has occurred.

  That is, in the remote monitoring system 50, when an abnormality occurs in the one monitoring device group 13 in the first embodiment, for example, the device system or the communication system on the monitoring device 13a side, the status of this abnormality is directly communicated to the operator. Is provided as an emergency means. The emergency notification means 51 includes an abnormality notification device 52 connected to the monitoring data signal generator 21 of the personal computer 18 on the monitoring device 13a side (hereinafter referred to as the device-side personal computer) via the communication line y12, and the abnormality notification. It comprises a provider 53 communicatively connected to the device 52 via a communication line y13, and a mobile terminal 55 communicatively connected via a wireless communication network 54 to the wireless antenna 53a of the provider 53.

  When the monitoring data signal x3 is not regularly received, the abnormality reporting device 52 generates an abnormal signal z6 by the abnormality reporting device 52 and transmits it to the provider 53 side, and the provider 53 abnormalizes the abnormal signal z6. The signal is converted into a call signal z7 and transmitted to the mobile terminal 55 side.

  Since the other configuration of the remote monitoring system 50 is the same as the configuration of the remote monitoring system 10 of the first embodiment, the description thereof is omitted.

  Next, with respect to the operation of the remote monitoring system 50, FIG. 3 and a flowchart for confirming the presence / absence of an abnormality, which is performed by the ping method in order to confirm the location where the abnormality has occurred on the monitoring device side or the monitoring center side in the first embodiment, are shown. This will be described with reference to FIG.

  Since the monitored devices 11a to 11n of the monitored device group 11 perform the same operation, the monitored device 11a will be described as an example.

  The controller 16a to 16n provided in each component device of the monitored device 11a generates an operation status data signal x1a including operation status data such as the operation status of the component device and transmits it to the monitoring device 13a side. . At the same time, the operation status data included in the operation status data signal x1a is displayed on the data display device 17 of the monitored device 11a as a graphic image, for example.

  The monitoring apparatus 13a that has received the operation status data signal x1a receives the data at the data processing apparatus 20 of the apparatus-side personal computer 18 and outputs a processed data signal x2. The monitoring data signal generator 21 receives the output machining data signal x2 and outputs an operation status numerical data signal x31. The output operating condition numerical data signal x31 is generated as a monitoring data signal x3 by the line processing device 26, and transmitted to the monitoring center 12 side through the public line network 14.

  It is stored in the data memory 22 so that it can be called simultaneously with the output of the monitoring data signal x3. The stored monitoring data signal x3 can be displayed on a display device (not shown) by performing an input operation on the device-side personal computer 18 by an operator.

  On the other hand, the monitoring data signal x3 received on the monitoring center 12 side is transmitted to the monitoring data signal regenerator 32 side through the router 31. The monitoring data signal x3 received by the monitoring data signal regenerator 32 generates an individual monitoring data signal x41 by the line processing device 36 and is transmitted to the signal processing device 37.

  The signal processing device 37 that has received the individual monitoring data signal x41 generates a data processing signal x42 and transmits it to the data display device 38. The data display device 38 that has received the data processing signal x42 displays the operation status on the monitored device 11a side included in the data processing signal x42 as a graphic image. At the same time, the data processing signal x42 is stored in the data memory 35.

  Further, the periodic data acquisition signal z5 is reproduced as a monitoring data signal when a predetermined time has elapsed since the component device of the monitored apparatus 11a was started and when a predetermined cumulative time has elapsed since the predetermined component device was started. The data is transmitted to the monitoring device 13a via the device 32 and the router 31. The monitoring device 13a transmits the monitoring data signal x3 to the monitoring center 12 side in accordance with the timing at which the regular data acquisition signal z5 is received. Therefore, the operation status of the component device on the monitored device 11a side is displayed on the data display device 38 of the monitoring data signal regenerator 32 in accordance with the above timing.

  On the other hand, when the remote monitoring system 10 is in normal operation, if an abnormality occurs on the monitoring device 13a side and the alarm signal x3 is transmitted to the monitoring center 12 side, the state of this abnormality is displayed on the data display device 38. Displayed. Therefore, it is possible to recognize the abnormal situation on the Chinese poetry device 13a side as a handler. When this situation is recognized by the operator, it is necessary for the operator to immediately confirm the cause and start the repair work.

  Therefore, while the operator recognizes this state, the operator operates the ping operation means 33 of the center side personal computer 30 as the operator. In this operation, a ping request is made sequentially or randomly to any device between the monitoring center 12 and the monitoring device 13a, and the presence or absence of a ping response to this ping request is confirmed one by one. By this confirmation work, an abnormal state can be detected throughout the remote monitoring system 10.

  The target range of the ping request may be, for example, the monitoring center 12, the line processing device 36 and the router 31 on the monitoring center 12 side, the monitoring device 13a, the router 19 and the line processing device 26 on the monitoring device 13a side. it can.

  The ping request procedure will be described with reference to FIG.

  It is assumed that the operator confirms the abnormal state by the alarm signal x32 during remote monitoring using the data display device 38 of the remote monitoring system 10. The operator operates the ping operation means 33 of the center side personal computer 30 on the monitoring center 12 side to make a ping request. Based on the ping request, it is confirmed whether or not there is a ping response from the line processing device 36 on the monitoring center 12 side. If there is a ping response, the line processing device 36 recognizes that it is normal <step 1>.

  If there is no ping response, a ping request is sent to the center side personal computer 30. If there is a response to this ping request, it is confirmed that there is an abnormality in the application software of the center side personal computer 30 and at the same time that there is no abnormality in the apparatus system <step 2>.

  If there is no ping response, a ping request is sent to the router 31 on the monitoring center 12 side. If there is a ping response in response to this ping request, it is confirmed that there is an abnormality in the device system or communication system from the monitoring center 12 side to the router 31 <Step 3>.

  If there is no ping response, a ping request is sent to the router 19 on the monitoring device 13a side. If there is a ping response according to this ping request, it is confirmed that there is a device system abnormality or a communication system abnormality from the monitoring device 13a side to the router 19 <step 4>.

  If there is no ping response, a ping request is made to the apparatus-side personal computer 18.

  If there is a ping response in response to this ping request, it is confirmed that there is an abnormality in the apparatus system or communication system from the monitoring center 12 side to the apparatus side personal computer 18 <Step 5>.

  If there is no ping response, it is confirmed that the apparatus system of the apparatus side personal computer 18 is abnormal (step 6).

  If there is no response in the process of <Step 1> to <Step 6>, the communication lines y1 to y10 and the LAN 15 may be disconnected or defective, so these checks are performed separately. .

  By performing the above <Step 1> to <Step 6>, it is possible for the operator to recognize where an abnormality has occurred between the monitoring center 12 side and the monitoring device 13a side.

  In addition, when the operator is absent from the monitoring center 12 before performing the ping operation as described above, the operator receives the abnormal call signal z7 through the portable terminal 55 and recognizes the abnormal state. Perform the ping operation. Therefore, when an abnormality occurs in at least one of the device system and the communication system between the monitoring center 12 and the monitoring device 13a during the operation of the remote monitoring system 50, the operator immediately identifies the abnormality location. This part can be repaired quickly and reliably.

  According to the remote monitoring system 50, when an abnormality occurs on the monitoring center 12 and the monitoring device group 13 side, a ping operation means 33 by an operation of a computer, for example, the monitoring center side personal computer 30 is used as an abnormality confirmation means. For example, an abnormality detector (not shown) separate from the computer may be used to detect and confirm the abnormal situation.

  Further, according to the remote monitoring system 50, when the monitoring center 12 side acquires the operation status data of the component device on the monitoring device 11a side, it is automatically and periodically performed by the periodic data acquisition device 34 on the center side personal computer 30 side. However, this can be arbitrarily acquired by the operator.

  For example, an acquisition switch button (not shown) that can be arbitrarily operated is installed in the center-side personal computer 30. Then, the operator may receive the data processing signal x42 by an arbitrary operation and acquire the operation status data.

1 is a schematic diagram showing a first embodiment of a remote monitoring system according to the present invention. The figure which shows the abnormality confirmation flow performed by the ping method in order to confirm the presence or absence of abnormality in the monitoring apparatus side or the monitoring center side, when the 1st monitoring center side cannot receive a data processing signal normally. The schematic diagram which shows 2nd Embodiment of the remote monitoring system concerning this invention. Schematic diagram of a conventional remote monitoring system.

Explanation of symbols

10, 50 Remote monitoring system 11 (11a to 11n) Monitored device group 12 Monitoring center 13 (13a to 13n) Monitoring device group 14 Public line network 15 LAN
16 (16a-16n) Controller group 17, 38 Data display device 18 Monitoring device side personal computer (monitoring device side computer)
19, 31 Router 20 Data processing device 21 Monitoring data signal generator 22, 35 Data memory 24, 37 Signal processing device 25 Notification processing device 26, 36 Line processing device 30 Monitoring center side personal computer (monitoring center side computer)
32 Monitoring data signal regenerator 33 Ping operation means (abnormality confirmation means)
34 Periodic data acquisition device (abnormal data acquisition signal)
51 Emergency reporting means 52 Abnormality reporting device 53 Provider 54 Wireless communication network 55 Mobile terminal x1 (x1a to x1n) Operation status data signal group x2 Processing data signal x31 Operation status numerical data signal x32 Alert signal x3 Monitoring data signal x41 Individual monitoring data Signal x42 Data processing signal y1 to y13 Communication line z1 to z4 Ping data acquisition signal z5 Regular data acquisition signal z6 Abnormal signal z7 Abnormal call signal

Claims (10)

A monitoring device group that monitors the monitored device group, a monitoring center that monitors the monitoring device group in an integrated manner, and a public network that communicatively connects the monitoring center and the monitoring device group,
In the monitoring device group, a predetermined monitoring reference value is set to monitor the operation status of the monitored device group, such as operation control, and a monitoring data signal is generated when the threshold value of the monitoring reference value is exceeded. A monitoring device side computer that transmits to the monitoring center side,
A remote monitoring system, wherein the monitoring center includes a monitoring center computer that receives and reproduces a monitoring data signal generated on the monitoring device group side via the public network. The remote monitoring system according to claim 1, wherein the monitoring device group includes a data display device that displays an operation status data signal indicating an operation status of the monitored device group. The monitoring apparatus side computer is provided with a data memory for storing the operation status numerical data signal generated by the signal processing device based on the operation status data indicating the operation status of the monitored device group. The remote monitoring system according to claim 1. In the monitoring device side computer, a predetermined monitoring reference value is set in order to monitor the operation status of the monitored device group, and the operation status data included in the operation status data signal transmitted from the monitored device group side is stored. A monitoring data signal generator that generates a monitoring data signal and transmits it to the monitoring center when the threshold value of the monitoring reference value is exceeded,
2. A monitoring data signal regenerator for receiving and reproducing a monitoring data signal generated on the monitoring device group side via the public line network, in the monitoring center side computer. Remote monitoring system. The monitoring data signal generator is a signal processing device that converts the operation status data signal received from the monitored device group side into numerical information and generates an operation status numerical data signal;
An alarm processing device that generates an alarm signal when the operational status numerical data signal is equal to or greater than a threshold value of the predetermined monitoring reference value;
5. The remote monitoring system according to claim 4, further comprising: a line processing device that receives the notification signal and generates a monitoring data signal. A monitoring device group that monitors the monitored device group, a monitoring center that monitors the monitoring device group in an integrated manner, and a public network that communicatively connects the monitoring center and the monitoring device group,
In the monitoring device group, a predetermined monitoring reference value is set in order to monitor the operation state such as the operation state on the monitored device group side, and a monitoring data signal is sent when the monitoring reference value exceeds a threshold value. A monitoring device computer that generates and transmits to the monitoring center is provided.
The remote monitoring system according to claim 1, wherein the monitoring device side computer is provided with an emergency notification means capable of receiving an abnormal call signal on the mobile terminal side based on the abnormal signal generated on the monitoring device group side. The monitoring center computer includes a monitoring data signal regenerator that receives and reproduces the monitoring data signal generated on the monitoring device group side via the public line network, and
A periodic data acquisition device that transmits a periodic data acquisition signal to the monitoring device group side so as to periodically acquire an operation status data signal acquired from the monitored device group side in the monitoring device group, The remote monitoring system according to claim 1 or 6. The monitoring center computer includes a monitoring data signal regenerator that receives and reproduces the monitoring data signal generated on the monitoring device group side via the public line network, and
A periodic data acquisition device for transmitting a periodic data acquisition signal to the monitoring device group side so that an operation status data signal acquired from the monitored device group side of the monitoring device group can be periodically acquired;
7. The data memory according to claim 1, further comprising a data memory for storing operation status data included in the periodic data acquisition signal acquired by the periodic data acquisition device so as to be recallable from the monitoring data signal regenerator side. Remote monitoring system. 9. The remote monitoring system according to claim 7, wherein the monitoring data regenerator of the monitoring center side computer is provided with a data display device for displaying an operation status numerical data signal generated by the signal processing device. . A monitoring device group for monitoring the monitored device group, a monitoring center for monitoring the monitoring device group, and a public line network for communication connection between the monitoring center and the monitoring device group,
In the monitoring device group, a predetermined monitoring reference value is set in order to monitor the operation status of the monitored device group, and a monitoring data signal is generated when a threshold value of the monitoring reference value is exceeded. A monitoring device side computer that transmits to the monitoring center side,
The monitoring center includes a monitoring center computer that receives and reproduces the monitoring data signal generated on the monitoring device group side via the public line network,
A remote monitoring system, wherein the monitoring center side computer is provided with an abnormality confirmation means that enables confirmation of an abnormality when an abnormality occurs on the monitoring center and the monitoring device group side.

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