JP3813064B2 - Equipment operating status monitoring system for water supply facilities - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a facility operating state monitoring system for water supply facilities.
[0002]
[Prior art]
Monitoring of the equipment operating state in a water supply facility is an important task from the viewpoint of the stable supply of tap water, which is a lifeline. In particular, local governments must secure a large number of water supply facilities for the supply population due to conditions such as topography and the size of water sources. In addition, water supply facilities are dotted with small ones, and most of these facilities are unmanned. Therefore, the monitoring operation of the equipment operating state has been a heavy burden because the person in charge of the management has to visit the facilities on the site one by one.
[0003]
2. Description of the Related Art Conventionally, as a system for monitoring the facility operation state of a water supply facility, a system that performs centralized monitoring using a telemeter signal using a dedicated line is known. For example, as shown in FIG. 12, the facility information monitoring system 10 provides a dedicated line between the central monitoring device and each site facility A, B. A telemeter device (slave station) 12 of a field facility is connected to a telemeter (master station) 13 of the central monitoring device. Detection signals of various instrumentation devices 11 are transmitted from the telemeter devices (slave stations) 12 of the field facilities A and B to the telemeter (master station) 13 of the central monitoring device. In the central monitoring apparatus, the monitoring signals received by the telemeter (master station) 13 are sequentially collected by the server 14 and the monitoring signals stored in the server 14 are processed.
[0004]
In addition, there is a system that centrally monitors the operating state of equipment by remotely accessing each field facility from a central monitoring device via a telephone line. For example, as shown in FIG. 13, the facility information monitoring system 20 forms a network using telephone lines between the on-site facilities A and B and the central monitoring device. Monitoring signals from various instrumentation devices 21 are accumulated in the server 23 in each field facility via the input / output device 22. In the central monitoring device, the monitoring data is acquired and processed by connecting directly from the central server 24 to each server 23 (remote access).
[0005]
[Problems to be solved by the invention]
However, in such a conventional equipment information monitoring system, since monitoring information is directly transmitted and received between the central monitoring device and each field facility, a line is secured as the distance between each field facility and the central monitoring device increases. Communication costs are increased.
In addition, it is necessary to install an expensive server in the central monitoring device, which places a heavy burden on maintenance and management of the monitoring system.
[0006]
On the other hand, recently, a facility information monitoring system has been proposed in which a computer of a central monitoring device is connected to a mail server at a site facility via the Internet and the operation status of the facility is monitored by e-mail.
As shown in FIG. 14, this type of system 30 is provided with a mail server 33 in each of the site facilities A and B. Detection signals from various instrumentation devices 31 are sent from the input / output device 32 to the mail server 33. The mail server 33 creates an e-mail based on the detection signal of the instrumentation device 31, and stores it in a mailbox in the server.
The electronic mail stored in the mail server 33 from the central monitoring apparatus is received by the personal computer 34 via the Internet, and the monitoring information is checked.
[0007]
However, in such an equipment information monitoring system using e-mail, there is a mail server for storing e-mail for each on-site facility, so the equipment cost when introducing the system is high, and the burden of maintenance and management of the mail server is also high. Is big. For this reason, there has been a problem that it is not suitable for monitoring on-site facilities scattered in remote locations.
[0008]
The present invention has been made in view of the above points, is reliable, has a low burden of introduction, maintenance and management, and is immediately notified to the manager in order to be able to respond quickly in the event of an abnormality. The purpose is to provide an equipment operating state monitoring system for water supply facilities.
[0009]
[Means for Solving the Problems]
The facility operation state monitoring system for water supply facilities of the present invention employs the following means in order to achieve the above object. That is, an input device that inputs a detection signal of instrumentation equipment of a facility, a conversion device that converts the detection signal into a signal that can be digitally processed, a CPU that digitizes the detection signal and creates a data file, and a recording device A logging device including a communication device that automatically transmits normal data mail or abnormal data mail to a predetermined mail address is provided in each water supply facility, and the logging device compares the detected data with the reference data to detect normal data or abnormal data. A normal data mail or an abnormal data mail is automatically created by making a determination, and the mail addresses are set in a plurality of commercial mail servers of different Internet service providers, and each is a normal data mail address that informs the normal operating state. And an abnormal data mail address to notify the abnormal operating status In addition, the abnormal data mail address is set with a dedicated address of a portable terminal that copies and forwards the mail text, and receives the normal data mail or the abnormal data mail from the commercial mail server. In addition to the central monitoring device that monitors the operating state, abnormal data mail is automatically transmitted to the portable terminal in the event of an abnormality.
[0011]
According to the facility operating state monitoring system of the water supply facility of the present invention, an e-mail notifying the operating state of the facility is created at the site facility, sent to an Internet service provider (hereinafter referred to as ISP), and stored in a commercial mail server of the ISP. . In other words, an ISP commercial mail server is used as an e-mail storage location without placing a server for storing e-mail at each site facility. This greatly reduces the burden of maintaining and managing e-mails at the field facilities, and makes it easier to construct a monitoring system.
[0012]
An ISP commercial mail server usually has excellent system stability, complete security measures, and extremely high reliability. Therefore, the facility operating state monitoring system of the water supply facility of the present invention only needs to use a commercial mail server of a specific ISP alone. However, when an unforeseen situation such as an ISP system failure occurs, it may be assumed that the commercial mail server is stopped and the electronic mail cannot be transmitted / received. Therefore, in the present invention, it is proposed that at least two or more commercial mail servers are set and the same electronic mail is transmitted and received by a plurality of routes. Thereby, since the monitoring data of the facility information is distributed and stored in the commercial mail server, the risk of system failure can be reduced and the reliability of monitoring work can be greatly improved.
[0013]
As for the setting method of the commercial mail server, the mail address may be acquired by making a connection contract with a specific ISP. An address automatically given by the ISP may be used as it is, or an address uniquely determined by a person in charge of management of this system may be used.
[0014]
When two or more commercial mail servers are set, it is sufficient to establish connection contracts with two or more ISPs. Since the commercial mail server is different for each ISP, a different mail address is acquired for each server.
When the ISP has a plurality of commercial mail servers, it is possible to set mail addresses to different commercial mail servers.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an overall configuration of a facility operating state monitoring system 100 for a water supply facility. In the facility operating state monitoring system 100, measuring equipment 51 (detection means) and a logging device 52 (mail creation means and mail transmission means) are provided in the field facilities A and B. Providers A and B (ISP) are provided with a commercial mail server 53. A central monitoring device 54 (monitoring means) and a portable terminal 55 (monitoring means) are provided as terminals operated by the person in charge of equipment management.
[0016]
As shown in FIG. 2, the instrument operating state of the on-site facilities A and B is detected by the instrumentation device 51 (step S1), and an e-mail notifying the facility operating state is created by the logging device 52 (step S2). Then, an electronic mail is transmitted from the logging device 52 to the commercial mail server 53 (step S3) and stored in a mailbox of the commercial mail server 53 (step S4). By receiving the e-mail in the mailbox by the central monitoring device 54 or the portable terminal 55 (step S5), the equipment operating status of the on-site facilities A and B is monitored.
[0017]
In the facility operating state monitoring system 100, providers A and B each have a commercial mail server 53 serving as an email storage location. That is, the same electronic mail is stored in a plurality of commercial mail servers. Thereby, when trouble occurs in mail transmission / reception by one of the providers A and B, mail transmission / reception is ensured by the other commercial mail server 53, and the reliability of monitoring of facilities is greatly improved.
[0018]
Site facilities A and B are water facilities such as remote areas, and raw water flow rate, opening of raw water inflow valve, raw water turbidity, raw water pH, filtration resistance, clean water pond level, distribution pond water level, etc. Become. The location, number, type, etc. of the on-site facilities can be arbitrarily set.
[0019]
As the instrumentation device 51, for example, a water level meter, a flow meter, a turbidity meter, a temperature sensor, a pH sensor, or the like is used. The operating state of the facility is detected by the instrumentation device 51 using an analog signal, a contact signal, or the like. The detection signal is sent to the logging device 52 at all times or at predetermined time intervals.
[0020]
As shown in FIG. 3, when the detection signal from the instrumentation device 51 is input (step S11), the logging device 52 automatically creates an e-mail notifying the operating status of the facility based on the detection signal (step S12). ). Next, dial-up or constant connection is established with an access point of a predetermined provider (step S13), and an electronic mail is automatically transmitted to the commercial mail server 53 (step S14).
After sending the e-mail, the logging device 52 determines whether e-mail has been sent to all providers (step S15). If not, the process returns to step S13 to transmit the same electronic mail to the unsent commercial mail server 53 (step S14). After sending e-mails to all commercial mail servers 53, logging is terminated.
[0021]
In the normal case, the timing of creation and transmission of the e-mail of the logging device 52 is set to be performed periodically (for example, once a day). As a result, mail management is not complicated and monitoring work is facilitated.
[0022]
Further, the logging device 52 may create and send an e-mail in response to a call signal from an external telephone. For example, when the alarm contact input of the logging device 52 is turned on by a call signal, the electronic mail is set to be created and transmitted immediately based on the latest detection signal of the instrumentation device 51. This makes it possible to quickly and accurately know changes in the operating status of equipment in an emergency, and to take appropriate measures according to the situation. In addition, when an abnormality occurs, an e-mail is automatically sent, so there is no need for an urgent request mail to obtain monitoring data from the central monitoring device. Special software and a mail server that distinguishes the request mail and security functions are provided. No communication equipment is required.
[0023]
An e-mail consists of a mail body (text sentence) and a data file. Information specifying the detection signal is displayed in the mail body. The data file stores the detection signal from the measuring device.
The data file is created as an electronic mail attachment in a digitized state. The person in charge of management can grasp detailed conditions such as the process leading to the occurrence of an abnormality and the causal relationship with peripheral devices by acquiring digitized monitoring data. In addition, it becomes possible to grasp a sign of failure, and preventive measures can be taken in advance.
Depending on the type of monitoring information, it is possible to omit the mail text or to attach the data file.
[0024]
Providers A and B are selected from existing ISPs with access points close to the location of field facilities A and B and central monitoring device 54. In order to increase the stability and reliability of the monitoring system, it is desirable to use an ISP having a large line capacity. For example, ISPs such as telephony operators, cable television operators, and satellite communication operators can be cited. The IPS is not limited to a for-profit organization but may be a non-profit organization.
[0025]
A telephone line is used as a connection line to the access points of the providers A and B. By making a call to a predetermined access point, it is possible to send and receive electronic mail.
The connection line may be either an analog line or a digital line. In addition to a general telephone line (analog line), a cellular phone line, ISDN, ADSL, cable TV, cable broadcasting dedicated line, optical cable line, or the like may be used.
[0026]
The commercial mail server 53 has a mail transmission / reception function, a mailbox function, a mail management function, and a mail transfer function. The electronic mail service provided by the providers A and B is used.
In addition to the commercial mail server, a mail server may be installed in the same facility as the central monitoring device. A web server may be used as long as it has the same function as a commercial mail server.
[0027]
In the commercial mail server 53, a normal data mail address and an abnormal data mail address are set. Each mail address is acquired when contracting with providers A and B. By setting the two types of addresses in this way, no special software for analyzing the mail contents is required. For example, when only abnormal data mail is necessary, the person in charge of management can know the occurrence of an abnormality only by accessing only the abnormal data mail address.
[0028]
Further, in the abnormal mail address of the commercial mail server 53, a dedicated address of the portable terminal 55 is set as a transfer destination of the abnormal data mail. Thereby, when an abnormality occurs, the abnormal data mail is transferred to the portable terminal, and the occurrence of the abnormality can be known without accessing the commercial server.
[0029]
The central monitoring device 54 includes a personal computer main body, a communication device (modem), a monitor, a keyboard, a printer, and the like. It has data processing functions such as e-mail reception, monitoring signal graphing / display, monitoring signal form creation, and data interpolation. The monitoring result graph, form, etc. are displayed on a monitor and printed out by a printer as necessary.
The central monitoring device 54 may be a server or a notebook computer having similar functions. The printer does not have to be printed. An uninterruptible power supply may be provided in order to stably supply power to the personal computer body and modem.
[0030]
As the mobile terminal 55, a mobile device having an electronic mail function such as a mobile phone, a notebook computer, a PHS, and an electronic notebook is used. A message, graph or the like of the monitoring result is displayed on the liquid crystal monitor or the like of the portable terminal 55.
[0031]
The flow of electronic mail in the commercial mail server 53 is shown in FIGS.
When receiving the electronic mail from the logging device 52 (step S21), the commercial mail server 53 separates the normal data mail and the abnormal data mail according to the type of the mail address.
[0032]
As shown in FIGS. 4 and 6, when the e-mail is sent to the normal data mail address a1, the commercial mail server 53 stores the e-mail in the mail box (step S22). When there is a request from the central monitoring device 54, mail browsing is permitted (step S23), and an electronic mail is transmitted to the central monitoring device 54 (step S24).
[0033]
As shown in FIGS. 5 and 7, when the electronic mail is sent to the abnormal data mail address a2, the commercial mail server 53 stores the electronic mail in a mailbox different from the normal data mail address a1 (step S25). The electronic mail (only the text body) is copied and transferred to the set dedicated address a3 of the mobile terminal 55 such as a mobile phone (step S26). Next, the mobile terminal 55 is notified of an incoming e-mail (step 27).
That is, as for the electronic mail, the text body and the data file (attached file) are stored in the mailbox of the commercial mail server 53, and only the text body of the same mail is stored in the built-in mailbox of the portable terminal 55.
When there is a request for the address a2 from the central monitoring device 54 or the portable terminal 55, the commercial mail server 53 permits mail browsing (step S28), and an electronic mail (from the mailbox to the central monitoring device 54 or the portable terminal 55) A text body and a data file are transmitted (step S29).
[0034]
Next, FIG. 8 and FIG. 9 show processing flows for receiving electronic mail from the commercial mail servers 53 of the providers A and B.
When the central monitoring device 54 receives an e-mail, as shown in FIG. 8, first, it dials up or always connects to the access point of the provider A (step S31), and each address a1, normal data mail and abnormal data mail, The mail arrival status of a2 is confirmed (step S32). If there is an incoming mail, an electronic mail is received by the personal computer of the central monitoring device 54 (step S33), and if there is no incoming mail, the process proceeds to step 34 described later.
[0035]
Next, it is determined whether or not the mail reception status of all the commercial mail servers 53 has been checked (step S34). If the check has been completed, the mail reception is terminated as it is, and if not, the process returns to step 31. Then, dial up or always connect to the unchecked commercial mail server 53, and thereafter repeat the same processing. By such a procedure, all the electronic mails stored in the commercial servers 53 of the providers A and B are surely received by the central monitoring device 54.
Note that the time of mail reception by the central monitoring device 54 is set to be automatically performed at a predetermined time, for example.
[0036]
When an e-mail is received by the mobile terminal 55, the maintenance staff possessing the mobile terminal 55 receives an e-mail notification from the commercial mail server 53 and then checks the e-mail by himself / herself. That is, as shown in FIG. 9, the maintenance person dials up with the mobile terminal 55 to the provider that is the originator of the incoming mail notification, triggered by the call of the mobile phone that notifies the incoming of abnormal data mail from the commercial server 53. Then (step S36), an e-mail addressed to itself is received from the abnormal data mail address a2 (step S37). Then, an e-mail to be treated is searched from newly arrived e-mails, the cause of the abnormality is examined from the attached data file, and necessary measures are taken.
[0037]
When there is a mail arrival notification from a plurality of providers A and B, it is determined whether or not the mail arrival status of all commercial mail servers 53 has been checked (step S38). If not, the process returns to step 36 to make a dial-up connection to the unchecked commercial mail server 53, and the same processing is repeated thereafter. Normally, the abnormal data mails of the commercial mail servers of the providers A and B have the same contents, so that the step 38 can be omitted according to the judgment of the maintenance staff according to the abnormal situation.
[0038]
Further, the maintenance staff can directly receive the e-mail of the commercial mail server 53 from the portable terminal 55 whenever necessary even when the mail incoming notification is not received. The address setting for reception is not limited to one place, but may be received from a plurality of addresses.
[0039]
Thus, according to the equipment operation state monitoring system 100, the commercial mail server 53 is used as the storage destination of the equipment monitoring information of the on-site facilities A and B, and the central monitoring device 54 and the portable terminal 55 are connected to the commercial mail server 53. To monitor equipment information. This makes it possible to construct a highly reliable monitoring system without introducing expensive mail servers to the on-site facilities A and B. In addition, since the electronic mail is transmitted and received by connecting to the providers A and B via a telephone line, there is no need for line expansion work even at a remote site facility, and communication costs can be reduced.
[0040]
Next, details of the logging device 52 described above will be described with reference to FIGS. 10 and 11. When constructing a facility operating state monitoring system for a water supply facility according to the present invention, it is desirable to use a logging device that has a simple configuration and is easy to maintain and manage. However, such a logging device has not been known. Therefore, the present inventors have developed a dedicated logging device 60 (= 52) suitable for this system.
[0041]
As shown in FIG. 10, the logging device 60 includes an input device 61, a conversion device 62, a CPU 63, a recording device 64, and a communication device 65. The input device 61 inputs analog signals from instrumentation equipment that monitors field facilities, and contact signals from pumps, alarm devices, and the like as detection signals. The conversion device 62 converts an analog signal of the instrumentation device into a digital signal and detects a contact signal.
[0042]
The CPU 63 digitizes the detection signal and stores it in the recording device 64, and creates a data file based on the digitized information. Further, the data file is attached to the e-mail, and the communication device 65 is instructed to send the e-mail.
The recording device 64 stores various setting information such as an access point of a commercial mail server and a mail transmission destination address. Note that it is desirable to use a compact flash composed of semiconductor recording elements as the storage medium of the recording device 64. This is because there is no mechanical operating part, so that failures are reduced and reliability is improved.
The communication device 65 connects to a commercial mail server via a general line and sends an e-mail to a predetermined mail address.
[0043]
As shown in FIG. 11, when the logging device 60 receives a detection signal from an instrumentation device (step S41), the logging device 60 compares the detection data of the CPU 63 with the reference data of the recording device 64 (step S42). If the detected data is within the range of the reference data, it is determined as normal data, and a normal data mail is created at a predetermined time (step S43). If the detected data exceeds the range of the reference data, it is determined as abnormal data, and an abnormal data mail is immediately created (step S44).
Then, normal data mail and abnormal data mail are transmitted to a mail address of a commercial mail server set in advance (steps 45 and 46).
The logging device 60 repeats steps 41 to 46.
[0044]
As described above, since the logging device 60 automates the collection of monitoring data to e-mail transmission, it is possible to reduce the number of on-site facilities and save labor in monitoring work.
In addition, since it is an all-in-one type that integrates monitoring data collection and e-mail transmission functions, it can be easily installed on site facilities and requires less maintenance.
Furthermore, since the logging device 60 has a built-in recording device 64 for accumulating monitoring data, even if the mail cannot be transmitted due to a failure of the commercial mail server, the stored mail is restored after the commercial mail server is restored. It becomes possible to transmit, and the risk of missing monitoring data can be reduced.
[0045]
【The invention's effect】
As explained above, according to the facility operating state monitoring system for water supply facilities of the present invention, the following effects are produced.
(a) Since it is not necessary to install a high-function mail server at the field facility and the central monitoring facility, a monitoring system can be constructed at low cost. Moreover, there is little maintenance burden and it is easy to unmanned the monitoring system.
(b) When an abnormality occurs, an e-mail is automatically sent to the system administrator's mobile terminal, so that the administrator can immediately know at night or even on a business trip, and can respond quickly.
(c) Since two or more commercial mail servers are set from different Internet service providers that transmit the same one from the communication device of the logging device, the reliability of the monitoring work is greatly improved.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of a facility operation state monitoring system for a water supply facility according to the present invention.
FIG. 2 is a block diagram showing a processing flow of the monitoring system.
FIG. 3 is a flowchart for explaining a logging process of the logging device.
FIG. 4 is a flowchart showing processing of an electronic mail transmitted from the logging device to a commercial mail server, and shows a case of normal data.
FIG. 5 is a flowchart for explaining mail processing of the abnormal data.
FIG. 6 is a block diagram for explaining the flow of electronic mail at the normal time.
FIG. 7 is a block diagram for explaining the flow of electronic mail at the time of the abnormality.
FIG. 8 is a flowchart for explaining mail processing of the central monitoring apparatus;
FIG. 9 is a flowchart for explaining mail processing of the mobile terminal;
FIG. 10 is a block diagram showing a configuration of the logging device.
FIG. 11 is a flowchart for explaining mail processing of the logging device;
FIG. 12 is a schematic configuration diagram showing a conventional facility information monitoring system.
FIG. 13 is a schematic configuration diagram showing another facility information monitoring system.
FIG. 14 is a schematic configuration diagram showing another facility information monitoring system.
[Explanation of symbols]
100 Equipment operation state monitoring system 51 Instrumentation equipment (detection means)
52 Logging device (mail creation means, mail transmission means)
53 Commercial mail server 54 Central monitoring device (monitoring means)
55 Mobile terminal (monitoring means)
60 Logging device 61 Input device 62 Conversion device 63 CPU
64 Recording device 65 Communication device

Claims (1)

An input device for inputting a detection signal of the instrumentation equipment of the facility, a conversion device for converting the detection signal into a signal that can be digitally processed, a CPU for digitizing the detection signal to create a data file, a recording device, A logging device comprising a communication device that automatically transmits normal data mail or abnormal data mail to a mail address of each water facility is provided in each water supply facility, and the logging device compares detected data with reference data to determine normal data or abnormal data. To automatically create normal data mail or abnormal data mail, and the mail addresses are set in a plurality of commercial mail servers of different Internet service providers. An abnormal data mail address that informs you of the correct operating status is set. Further, the abnormal data mail address is set with a dedicated address of a portable terminal that copies and forwards the mail text, and receives normal data mail or abnormal data mail from the commercial mail server to check the operating status of the equipment. In addition to a central monitoring device to monitor, an abnormal data mail is automatically transmitted to the portable terminal in the event of an abnormality.

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