JP2013081124A - Monitoring system and remote place maintenance system - Google Patents

Abstract

A system capable of optimally transmitting a file required for software upgrade etc. to a monitoring device at a remote location from a monitoring location by wireless communication for upgrading of software used for a monitoring device for a wind turbine generator, etc. I will provide a.
A remote maintenance system for a monitoring device (200) for monitoring and controlling a monitoring target, wherein the monitoring target and the monitoring device are remote from the monitoring site where the remote maintenance system is installed. The remote maintenance system is provided with a monitoring terminal (100) that can remotely control the monitoring device, and a monitoring control device (110, 120) that stores information used by the monitoring device. The monitoring control device performs a process of transmitting information to a remote location in accordance with a request from the monitoring terminal.
[Selection] Figure 1

Description

  The present invention relates to a remote monitoring system and a maintenance system thereof, and in particular, uses wireless communication from a monitoring site to a remote monitoring device for files necessary for upgrading a software such as a remote monitoring device. It relates to a system that can transmit optimally.

  Usually, the monitoring device installed in wind power generation, railway vehicles, etc. may need to change the program content for reasons such as system malfunctions or addition of new functions. In particular, wind power generators are often installed in remote areas, and a terminal is directly connected to the monitoring device to perform maintenance work such as software upgrades.

  However, the maintenance work of such a monitoring device is very expensive and troublesome especially in remote areas. Further, in such remote areas, there are many cases where there is no network line, and when a wired network line is installed, capital investment may be further made.

  Therefore, a technique for maintaining a monitoring device without directly connecting a monitoring terminal to a monitoring device installed in a remote area has been proposed.

  For example, in Japanese Patent Laid-Open No. 2000-330661 (Patent Document 1), a “remote maintenance client” in which browser software is installed is installed so that maintenance work can be performed even in a remote place. The computing system (monitoring device) has a web server, and the “remote maintenance client” is shown to access the web server and change the computing equation.

  JP 2007-189477 A (Patent Document 2) is connected to a device to be monitored, stores a controller that aggregates device information, and device information transmitted from the controller in storage means, In a monitoring system that includes an operation terminal that controls equipment and a monitoring terminal that remotely controls the operation terminal via a predetermined communication network, the operation terminal recognizes access from the monitoring terminal and It is shown that the operation terminal can be operated by the monitoring terminal by accepting remote control.

Japanese Patent Laid-Open No. 2000-330661 JP 2007-189477 A

  However, the invention disclosed in Japanese Patent Application Laid-Open No. 2000-330661 (Patent Document 1) needs to install a “remote maintenance client” in which browser software is installed so that maintenance can be performed even in a remote place. Further, the invention disclosed in Japanese Patent Application Laid-Open No. 2007-189477 (Patent Document 2) has a problem that a controller for collecting device information is required separately, which increases costs.

  Further, since the monitoring device is installed, it is also a problem to improve the accuracy of abnormality determination such as a measurement error by the monitoring device. For example, when an abnormality such as a measurement error occurs in the monitoring device, determine what action should be taken, whether the upgrade software is incompatible, or whether the hardware (monitoring device) is faulty. There is also a problem that cannot be accurately determined from a monitoring place remote from the monitoring device.

  An object of the present invention is to optimally transmit a software upgrade required for a wind power generator monitoring device or the like to a monitoring device remote from the monitored location by wireless communication. It is to provide a system that can be used.

  According to the present invention, a remote maintenance system for a monitoring device that monitors and controls a monitoring target, wherein the monitoring target and the monitoring device are installed in a remote location with respect to the monitoring location where the remote maintenance system is installed. The remote maintenance system includes a monitoring terminal that can remotely control the monitoring device, and a monitoring control device that stores information used by the monitoring device, and the information is for setting the operation of the monitoring device. Yes, the monitoring control apparatus performs transmission processing of information to a remote place in accordance with a request from the monitoring terminal.

  Preferably, the monitoring-side control device further stores other information different from the information, and the monitoring-side control device performs information transmission processing according to a request from the monitoring terminal, and the information transmission processing is not successful Performs a process for retransmitting information to the monitoring device, and performs a process for transmitting other information if the retransmit process is not successful.

  Preferably, the monitoring control device further stores a cause detection device file prepared in advance for detecting the cause when the measurement result of the monitoring target is not good, and the monitoring control device The first measurement result measured by the apparatus is received. If the first measurement result is good, the cause detection device file is not sent. If the first measurement result is not good, the monitoring result is used. In response to a request from the terminal, a cause detection device file is transmitted.

  Preferably, the monitoring-side control device performs reception processing of the second measurement result measured using the cause detection device file, and if the second measurement result indicates a measurement error, the monitoring device is regarded as a failure. Determine and perform a device stop command transmission process, if the second measurement result does not indicate a measurement error, perform a transmission process of information, perform a reception process of the third measurement result measured using the information, A process for determining whether or not the monitoring device is operating normally is performed according to the third measurement result.

  Preferably, the monitoring-side control device is configured to obtain a measurement result that is more detailed than the measurement result obtained using the information when the measurement value of the measurement result obtained by measuring the monitoring target exceeds a predetermined threshold. A threshold determination file prepared in advance is further stored, and the monitoring control device performs reception processing of the first measurement result measured by the monitoring device, and monitors if the measured value of the first measurement result exceeds the threshold The threshold judgment file is transmitted according to the request from the terminal, and the transmission processing is not performed when the measured value of the first measurement result does not exceed the threshold.

  Preferably, the monitoring side control device performs reception processing of the second measurement result measured using the threshold judgment file, and the amount of change per time of the measurement item of the second measurement result is equal to or less than the reference value. In this case, the information used when the first measurement result is measured is transmitted. If the amount of change in the measurement item of the second measurement result per unit time is larger than the reference value, the first measurement result is kept below the reference value. The measurement result of 2 is received repeatedly.

  Preferably, in the remote maintenance system, communication between the monitoring place and the remote place is performed via wireless communication.

  Further, according to the present invention, there is provided a monitoring system for monitoring and controlling a monitoring target, the monitoring system comprising a monitoring device for monitoring and controlling the monitoring target, and a control device for storing information used by the monitoring device, The target and the monitoring device are installed remotely from the monitoring site, and the information is transmitted from the monitoring side control device installed in the monitoring site in accordance with the request of the monitoring terminal installed in the monitoring site. This is for setting the operation of the monitoring device. The monitoring device uses information to monitor and control the monitoring target.

  Preferably, when another monitoring device installed in a remote place is further added, the monitoring-side control device receives the type information of the other monitoring device and a request for information for setting the other monitoring device, and performs monitoring. If the information is present in the monitoring control apparatus, the side control apparatus performs information transmission processing to the control apparatus, and the other monitoring apparatuses receive information from the control apparatus and perform a monitoring operation based on the information.

  Preferably, in the monitoring system, communication between the monitoring place and the remote place is performed via wireless communication.

  According to the present invention, it is possible to easily perform accurate determinations such as updating of software and setting files (virgin up) and immediate stop of the monitoring device in a short time. In addition, it is possible to improve the accuracy of determining an abnormal situation such as a measurement error of a monitoring device remote from the monitoring place.

It is a figure which shows an example of the outline | summary of the monitoring system which concerns on embodiment of this invention. It is a flowchart for demonstrating operation | movement by the side of a monitoring side at the time of the device file transmission operation | movement by software version upgrade. 6 is a flowchart for explaining operations on a monitoring side and a monitoring system side when a measurement error occurs in the monitoring apparatus 200. It is a flowchart for demonstrating operation | movement on the monitoring side and monitoring system side at the time of newly adding a monitoring apparatus in the monitoring system side. It is a flowchart for demonstrating operation | movement of a threshold value judgment program.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or an equivalent part in a figure, and the description is not repeated.

[Embodiment]
FIG. 1 is a diagram illustrating an example of an overview of a monitoring system according to an embodiment of the present invention. Referring to FIG. 1, the monitoring system side includes, for example, a monitoring device 200, an FTP (File transfer Protocol) server 220 storing a device file read by the monitoring device 200, a modem 240, and a router 230. Including. The monitoring device 200 monitors and controls the wind turbine generator 210 that is a monitoring target, and transmits, for example, a determination result of gear or bearing wear using wireless communication.

  The FTP server 220 is an FTP server having a PLC (Power Line Communication) function. Specifically, the FTP server 220 can transmit and receive files in the FTP format by using power wiring as a communication line.

  The monitoring side for monitoring the monitoring device 200, monitoring terminals 100A, 100B,..., 100N (collectively referred to as the monitoring terminal 100), servers 110 and 120 as control devices, a modem 140, Router 130. Although the modem 140 and the router 130 are used here, a router having a modem function may be used.

  The monitoring system side and the monitoring side transmit / receive data of a setting file (device file) via the network (Internet) 300.

  Here, the server 110 stores a device file for setting the monitoring device 200. Under the instruction from the monitoring terminal, the device file stored in the server 110 is stored in the FTP server 220 using the FTP format.

  Further, the measurement data transmitted from the monitoring system side is first stored in the server 110. The server 110 directly transfers this measurement data to the server 120. Here, the servers 110 and 120 are used. However, the measurement data is not limited to this, and the measurement data may be directly stored in the server 120. Alternatively, the FTP server may be installed on the monitoring side and the measurement data may be stored in the FTP server. May be transmitted in the FTP format.

  Here, in accordance with a request from the monitoring terminal 100, the server 120 executes a program for recording a communication history stored in the server 120, a threshold determination program, and a measurement error monitoring / determination program. As will be described later, the program for recording the communication history is a program for determining whether or not the monitoring terminal can transmit a device file necessary for the monitoring apparatus to the monitoring system side.

  The threshold judgment program is a program in which a device file that can automatically change measurement conditions is transmitted by FTP when the measurement result measured by the monitoring device using vibration data exceeds a threshold value prepared in advance. is there.

  The measurement error monitoring / judgment program sends the device file at the time of occurrence of the measurement error by FTP over the measurement error sent from the monitoring device, and the cause of the measurement error of the monitoring device is caused by the monitored object. It is a program that judges whether it is an accident or an accidental cause (false monitoring).

  In the section where communication is performed by wireless communication, it is preferable that the range in the direction from the router 130 to the network (Internet) 300 on the monitoring side and the entire range on the monitoring system side be communicated by wireless communication on the monitoring system side. . That is, it is preferable that all devices on the monitoring system side are connected by wireless communication, and data transmission / reception is performed by wireless communication.

  This means that the monitoring device and the object to be monitored (wind turbine for wind power generation) are both installed in relatively remote areas, and the distance between them is very close compared to the distance on the monitoring side-monitoring system side This is because the cost for performing wired communication increases. Moreover, when installing a monitoring apparatus, wiring work takes time and the workload is large. By performing this wirelessly instead of wired, work efficiency is improved and installation is facilitated.

  In the monitoring system in the present embodiment, the monitoring device 200 is connected to a network (Internet) 300 via a router 230 and a modem 240.

  On the monitoring system side, a device file applied to the monitoring apparatus 200 is stored in the FTP server 220. In accordance with the request from the monitoring terminal 100, the server 120 performs processing for transmitting the device file to the FTP server 220.

  A plurality of monitoring terminals 100A to 100N are provided on the monitoring side, and the plurality of monitoring terminals 100A to 100N are connected to a network (Internet) 300 via a router 130 and a modem 140. Note that there is no need for a plurality of monitoring terminals.

  In order to perform maintenance work such as software upgrade, the server 120 uses the Internet connection via the router 130 by the FTP command in accordance with the request of the monitoring terminal 100 and performs transmission processing of the corresponding device file. This device file is stored in the FTP server 220 via the router 230 by wireless communication. A control unit (for example, a CPU (Central Control Unit)) of the monitoring apparatus 200 directly reads this device file stored in the FTP server 220, and the measurement condition setting is changed.

  The network (Internet) 300 in the present embodiment will be described by a method using a public line that is easy to construct and inexpensive, but is not limited thereto, and a dedicated line may be used.

  Note that the routers 130 and 230 installed on the monitoring side and the monitoring system side in order to construct a system with high security preferably have a firewall function. As the modems 140 and 240, for example, an ADSL (Asymmetric Digital Subscriber Line) modem may be used for high-speed communication.

  Furthermore, for the modems 140 and 240, a device (VPN device) having a highly secure VPN (Virtual Private Network) function may be used.

  FIG. 2 is a flowchart for explaining operations on the monitoring side and the monitoring system side at the time of device file transmission operation due to software upgrade.

  Referring to FIG. 2, when it is necessary to transmit a device file necessary for software to the monitoring system side in accordance with a request from monitoring terminal 100, server 120 stores the device stored in server 120 in step S <b> 1. The file (F1) is transmitted to the FTP server 220 via a modem, a router, and a network (Internet).

  In step S2, in accordance with the request from the monitoring terminal 100, the server 120 records the transmission history in the server 120, and determines from the transmission history whether the transmission process has been executed without failure. Specifically, if it is determined that the device file (F1) transmission process is successful, the process ends. At this time, the device file (F0) before the upgrade stored in the FTP server 220 installed on the monitoring system side and this device file (F1) have the same file name, so this device file (F1) Is overwritten.

  On the other hand, if it is determined that the transmission process has failed and the device file (F1) has not been transmitted, the process proceeds to step S3, where it is determined whether the number of transmission processing errors is within a predetermined number of times.

  In step S3, it is determined whether or not the number of transmission processing errors is within a predetermined number (N). If it is determined that the number of errors in the transmission process is N or less, the process returns to step S1 and the device file transmission process is performed again. On the other hand, if it is determined that the number of errors in the transmission process is greater than N, the process proceeds to step S4.

  In step S4, if the number of errors in the transmission process is greater than the predetermined number, another device file (F2) is transmitted instead of the device file (F1), and the process ends. At this time, since the device file (F0) before the upgrade and the device file (F2) stored in the FTP server 220 installed on the monitoring system side have the same file name, the device file (F2) Overwritten. The device file (F2) is preferably a device file that has been successfully transmitted in the past.

  On the other hand, on the monitoring system side, in step S101, the monitoring device receives the device file (F1) transmitted in the process of step S1 from the monitoring terminal or the device file (F2) transmitted in the process of step S4. These transmitted device files are read into a RAM or the like, monitoring processing is started in accordance with these device files, and the processing ends.

  Therefore, when the transmission process fails, the server 120 performs a retransmission process for the device file (F1) a predetermined number of times (N), and the number of errors in the retransmission process exceeds the predetermined number (N). The server 120 transmits another device file (F2) to the monitoring system side. Thus, by successfully transmitting the device file (F2), the server 120 continues to operate in a state where the server 120 has returned from the state in which the transmission process has failed.

  As described with reference to FIG. 2, in accordance with the request of the monitoring terminal 100 according to the present embodiment, the device file necessary for upgrading the software is changed to the monitoring device by using the Internet line via the router with the FTP command. It can be reflected.

  In addition, by recording the transmission history in the server 120, when the device file transmission process for upgrading the software has failed, another device file is transmitted, and the state where the transmission process has failed is restored Continue operation with.

  Next, as a problem of monitoring an object to be monitored (referred to as a monitoring object, for example, a wind turbine bearing for a wind power generation, a gear, a tower nacelle, etc.), frequent monitoring errors (measurement errors) of the monitoring device can be cited. The cause of this erroneous monitoring is expected to be due to, for example, sensor failure, measurement attachment failure, human contact with the sensor, or an accidental increase in vibration value due to a gust of wind.

  In order to prevent the frequent occurrence of such false monitoring, when there is a sudden increase in vibration value and the monitoring device determines that there is an abnormality, it is necessary to determine whether or not a measurement error due to this monitored object has occurred. There is.

  FIG. 3 is a flowchart for explaining operations on the monitoring side and the monitoring system side when a measurement error occurs in the monitoring apparatus 200.

  Referring to FIG. 3, in step S111 on the monitoring system side, monitoring device 200 sequentially transmits the measurement result to the monitoring side using wireless communication. On monitoring side, server 110 is transmitted in step S11a. The measurement results are sequentially received, and the received measurement results are transferred from the server 110 to the server 120 (normal operation). Instead of being transmitted sequentially, it may be transmitted for each measurement content, or at regular intervals.

  In step S11b, the server 120 determines whether the measurement result has caused a measurement error. If it is determined that no measurement error has occurred, the monitoring side ends the process. If it is determined that a measurement error has occurred, the process proceeds to step S12.

  In step S12, when such a measurement error occurs, the server 120 FTP-transmits a device file (F3) prepared in advance when the measurement error occurs to the monitoring system side using wireless communication, and step S13. The process proceeds. On the other hand, on the monitoring system side, the process proceeds to step S112 where the FTP server 220 receives the transmitted device file (F3) and the monitoring device 200 reads the device file (F3).

  On the monitoring system side, in step S112, the monitoring device 200 reads the device file (F3) transmitted from the server 120 into a storage device such as a RAM, and changes the measurement condition settings. When this process ends, the process proceeds to step S113 in which measurement or the like is executed according to the changed measurement condition.

  Note that the device file (F3) at the time of occurrence of the measurement error is a device file that can automatically change the measurement condition of the monitoring target. By applying this device file, it is possible to lengthen the measurement time for the monitoring object, increase the sampling rate, and increase the measurement frequency for the monitoring object. By applying this device file, diagnosis by FFT (Fast Fourier Transform) is performed.

  In step S113, the monitoring apparatus performs measurement again based on the read device file (F3), and transmits the measurement result to the server 110.

  On the monitoring side, in step S13, the server 110 receives the measurement result measured again based on the device file (F3) subjected to the transmission processing in step S113 on the monitoring system side, and the process proceeds to step S14. The received measurement result is transferred from the server 110 to the server 120.

  In step S14, the server 120 determines whether a measurement error has occurred again based on the measurement result. If the server 120 determines that the measurement error has not occurred again, the process proceeds to step S15. On the other hand, if it is determined that the measurement error has occurred again, the server 120 proceeds to step S18.

  In step S15, after a certain period of time, the server 120 transmits the normally used device file (F4) to the monitoring system side instead of the device file (F3) for when a measurement error occurs.

  On the other hand, on the monitoring system side, in step S114, the FTP server 220 receives the device file (F4) transmitted by the process of step S15, and the monitoring device 200 reads the device file (F4) and performs measurement or the like. The process proceeds to step S115.

  On the monitoring system side, in step S115, the monitoring apparatus 200 performs measurement again based on the device file (F4) read in the process of step S114, and transmits the measurement result to the server 110.

  On the monitoring side, in step S16, the server 110 receives the result measured again based on the device file (F4) transmitted by the process of step S115, and the process proceeds to the next step S17. The received measurement result is transferred from the server 110 to the server 120.

  In step S17, it is determined whether or not the measurement result received by the server 120 in the process of step S16 is a measurement error. If it is determined in step S17 that a measurement error has occurred from the measurement result, the process proceeds to step S18. On the other hand, if it is determined in step S17 that no measurement error has occurred from the measurement result, the process proceeds to step S19.

  On the monitoring side, after the processes in steps S14 and S17, it is determined in step S18 that the monitoring device 200 is out of order, and the process proceeds to step S20. On the other hand, in step S19, it is determined that the monitoring apparatus 200 on the monitoring system side is operating normally, and the process ends.

  In step S20, the monitoring apparatus 200 is determined to be out of order by the process in step S18, and accordingly, the server 120 transmits an apparatus stop command to the monitoring apparatus, and the monitoring process ends.

  On the other hand, on the monitoring system side, if it is determined in step S116 that the instruction transmitted in step S20 on the monitoring side is an apparatus stop instruction, the process proceeds to step S117, the monitoring apparatus 200 stops, and the process ends. . On the other hand, if it is determined in step S116 that the command transmitted in step S20 on the monitoring side is not a device stop command, the monitoring device 200 continues normal operation in step S118, and the process ends.

  As described above with reference to FIG. 3, the server 120 performs transmission processing of the device file (F3) when the measurement error occurs by wireless communication, and the monitoring apparatus 200 performs measurement based on the transmitted device file (F3). It is determined whether the error is caused by the monitored object or an accidental cause (false monitoring). When it is determined that the cause is due to the monitored object, it is determined that there is an abnormality, and when it is determined that it is an accidental factor (false monitoring (measurement error)), the server 120 returns the measurement interval to the normal operation state. The file (F4) is FTP-transmitted to the FTP server 220, and the monitoring apparatus 200 performs measurement again based on the device file (F4) to prevent erroneous monitoring (measurement error).

Next, an operation when a monitoring device is newly added will be described.
FIG. 4 is a flowchart for explaining operations on the monitoring side and the monitoring system side when a monitoring device is newly added on the monitoring system side.

  Referring to FIG. 4, when a monitoring device is newly added to the monitoring system side, on the monitoring system side, there is no device file that is a setting file corresponding to the added monitoring device in step S121. A device file transmission request is made to the monitoring side. Here, the transmitted information includes the type information of the added monitoring device, the model number of the monitoring target, and the like.

  On the monitoring side, in step S21, the server 120 receives the device file transmission request transmitted by the processing of step S121 on the monitoring system side. Then, the process proceeds to step S22.

  In step S22, according to the transmitted information, when there is a past usage record for the added monitoring device, for example, the monitoring target of the added monitoring device and the monitoring device that has already been used are monitored. When the object is the same, since the device file is already stored in the monitoring server 120, the server 120 is already stored in the FTP server 220 and the monitoring object is the same. The device file used by the device is sent. Thereby, the added monitoring apparatus can be operated efficiently in a short time.

  As described with reference to FIG. 4, when a monitoring device is added, a device file for monitoring can be easily prepared in a short time, and measurement of the monitoring target can be started immediately.

  FIG. 5 is a flowchart for explaining the operation of the threshold judgment program. The threshold determination program is applied for each measurement using vibration data, and determines whether the measurement result exceeds the threshold.

  Referring to FIG. 5, in step S131, the monitoring device transmits the measurement result to server 110. In step S31, the server 110 receives the measurement result transmitted by the process of step S131, and the process proceeds to step S32. The received measurement result is transferred from the server 110 to the server 120.

  In step S32, the server 120 determines whether or not the measurement value of the measurement result is larger than a threshold value prepared in advance. If it is determined in step S32 that the measured value is greater than the threshold value, the process proceeds to step S33. On the other hand, if it is determined that the measured value is smaller than the threshold value, the process ends.

  In step S33, the server 120 transmits the threshold determination device file (F6) to the FTP server, and the process proceeds to step S34.

  On the other hand, the monitoring apparatus 200 reads the device file (F6) transmitted by the process of step S33 in step S132 instead of the device file (F7) currently used, performs measurement, and performs the process in the next step S133. Advances.

  In step S133, measurement is performed again based on the read device file (F6), the measurement result is transmitted to the server 110, and the process proceeds to step S134.

  On the other hand, in step S34, the server 110 receives the measurement result transmitted by the process of step S133 on the monitoring system side, and the process proceeds to step S35. The received measurement result is transferred from the server 110 to the server 120.

  In step S35, the server 120 determines whether or not the amount of change per hour calculated based on the remeasured measurement result is smaller than a reference value prepared in advance. If the amount of change per time is smaller than the reference value in step S35, the process proceeds to step S36. On the other hand, if the amount of change per time is larger than the reference value in step S35, the process returns to step S34 and repeats receiving the measurement result. This repetition is continued until the amount of change becomes smaller than the reference value.

  In step S36, when the amount of change per time becomes smaller than the reference value, the server 120 transmits the original device file (F7) to the FTP server 220 on the monitoring system side, and the process ends. On the other hand, in step S134, the FTP server 220 receives the original device file (F7) transmitted by the process of step S36, and the monitoring apparatus 200 reads the device file (F7), performs measurement again, and the process ends. To do.

  As described with reference to FIG. 5, according to the present embodiment, when the measurement result exceeds the threshold, the server 120 transmits the threshold determination device file to the FTP server 220.

  This device file is read into the monitoring apparatus 200, the measurement frequency is increased, and the measurement accuracy is increased. Measured for a certain period of time until the rate of change (reference value) falls below a certain value. If the measured value falls below the reference value, send a device file that returns the measurement interval via FTP, and return to normal operation. Can be confirmed and an appropriate response can be made.

  As described above with reference to FIGS. 1 to 5, when this embodiment is used, monitoring is performed by using wireless communication between a server and a router (monitoring side) or between a server and a router (monitoring system side). Monitoring equipment that reduces costs when the equipment or monitored object is remote, there is no wired network line, or there is a wired network but additional capital investment is required to take appropriate measures It is possible to respond quickly to. In addition, the accuracy of determining whether or not it is an abnormal determination such as erroneous monitoring (measurement error) can be improved, and the manager can respond quickly on the monitoring side.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  100 monitoring terminal, 110, 120 server, 130, 230 router, 140, 240 modem, 200 monitoring device, 220 FTP server.

Claims (10)

A remote maintenance system for a monitoring device for monitoring and controlling a monitoring target,
The monitoring target and the monitoring device are installed at a remote location with respect to a monitoring location where the remote maintenance system is installed,
The remote site maintenance system includes:
A monitoring terminal capable of remotely controlling the monitoring device;
A monitoring-side control device that stores information used by the monitoring device;
The information is for setting the operation of the monitoring device;
The remote-side maintenance system, wherein the monitoring-side control device performs transmission processing of the information to the remote location according to a request from the monitoring terminal. The monitoring control device further stores other information different from the information,
The monitoring side control device performs the information transmission processing according to the request from the monitoring terminal, and if the information transmission processing is not successful, performs the information retransmission processing to the monitoring device, The remote maintenance system according to claim 1, wherein when the retransmission process is not successful, the other information is transmitted. The monitoring-side control device further stores a cause detection device file prepared in advance for detecting the cause when the measurement result obtained by measuring the monitoring target is not good,
The monitoring control device performs reception processing of the first measurement result measured by the monitoring device, and does not perform transmission processing of the cause detection device file when the first measurement result is good, 2. The remote maintenance system according to claim 1, wherein when the first measurement result is not good, the cause detection device file is transmitted in accordance with a request from the monitoring terminal.   The monitoring-side control device performs reception processing of the second measurement result measured using the cause detection device file, and if the second measurement result indicates a measurement error, the monitoring device fails. When the second measurement result does not indicate the measurement error, the information transmission process is performed, and the third measurement result measured using the information is transmitted. The remote site maintenance system according to claim 3, wherein reception processing is performed, and determination processing is performed to determine whether or not the monitoring device is operating normally according to the third measurement result. In order to obtain a more detailed measurement result than the measurement result obtained using the information when the measurement value of the measurement result obtained by measuring the monitoring target exceeds a predetermined threshold, the monitoring-side control device Store the prepared threshold judgment file further,
The monitoring-side control device performs reception processing of the first measurement result measured by the monitoring device, and when the measurement value of the first measurement result exceeds the threshold value, the monitoring-side control device follows the request from the monitoring terminal. The remote maintenance system according to claim 1, wherein a transmission process of a threshold judgment file is performed, and the transmission process is not performed when a measurement value of the first measurement result does not exceed the threshold.   The monitoring control device performs reception processing of the second measurement result measured using the threshold judgment file, and the amount of change per time of the measurement item of the second measurement result is equal to or less than a reference value. In this case, the information used when the first measurement result is measured is transmitted. When the amount of change in the measurement item of the second measurement result per unit time is larger than the reference value, the reference value The remote maintenance system according to claim 5, wherein the second measurement result is repeatedly received until:   The remote site maintenance system according to any one of claims 1 to 6, wherein communication between the monitoring site and the remote site is performed via wireless communication. A monitoring system for monitoring and controlling a monitoring target,
The monitoring system is
A monitoring device for monitoring and controlling the monitoring target;
A control device for storing information used by the monitoring device;
The monitoring object and the monitoring device are installed at a remote place from the monitoring place
The information is transmitted from a monitoring control device installed at the monitoring site in accordance with a request from a monitoring terminal installed at the monitoring site, and the information is for setting an operation of the monitoring device. ,
The monitoring device uses the information to monitor and control the monitoring target.   When another monitoring device installed in the remote location is further added, the monitoring control device receives the type information of the other monitoring device and a request for information for setting the other monitoring device, If the information is present in the monitoring control device, the monitoring control device performs a transmission process of the information to the control device, and the other monitoring device receives the information from the control device and stores the information in the information. The monitoring system according to claim 8, wherein a monitoring operation is performed based on the monitoring operation.   The monitoring system according to any one of claims 8 to 9, wherein communication between the monitoring place and the remote place is performed via wireless communication.

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