JP3287534B2 - Remote monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a remote monitoring system such as a system for remotely monitoring and controlling a large number of governors of a city gas supply system and a remote control system, such as a remote control system. The present invention relates to a remote monitoring device managed by a monitoring device.

[0002]

2. Description of the Related Art For example, a governor for supplying city gas is managed by recording measurement data such as pressure, flow rate, and opening degree on a recorder installed at a site, and remote management is performed. Absent.

[0003] On the other hand, there is an attempt to remotely monitor governors installed at many places by a common center monitoring device. For example, as an attempt, a data collection device equipped with communication means with the center monitoring device was installed in each governor, collected by the data collection device and temporarily recorded on a volatile recording medium,
Measurement data such as pressure, flow rate, and opening are transmitted to the center monitoring device through a communication line by periodic calls from the center monitoring device, and the center monitoring device collects the data to record and determine abnormalities. There is a method.

[0004]

In the former method, since remote management cannot be performed, there are the following problems. a. When the setting of the pressure measurement range or the like is changed, a great deal of labor is required because a person goes to the site to replace the recorder, etc. b. Information about changes in each governor is recorded and managed by humans, which requires complicated operations.

On the other hand, even in the latter attempt, the collection of measurement data itself can be performed remotely, but has the following problems. a. When the setting of the pressure measurement range or the like in the data collection device is changed, a person goes to the site to change the setting, so that a great deal of labor is required. b. When the setting of the pressure measurement range or the like in the data collection device is changed, the device needs to be stopped, so that continuous data collection cannot be performed. Therefore, an object of the present invention is to solve the above problems.

[0006]

In order to solve the above-mentioned problems, according to the present invention, there are provided on-site processing devices installed at a number of monitoring sites, and a common center monitor connected to these on-site processing devices via a communication line. Each on-site processing device is provided with two systems of storage means for storing information necessary for the processing, and the storage means used in the processing is configured to be switchable. When the processing is performed based on the necessary information stored in the storage device, the content stored in the storage means on the other side is configured to be rewritable, and the center monitoring device creates necessary information for each on-site processing device as necessary. The present invention proposes a configuration in which the content stored in the storage unit on the other side is rewritten via a communication line and a command for switching the storage unit used in the processing is issued.

According to the present invention, in the above configuration, a portable monitoring device for storing necessary information for each on-site processing device created by the center monitoring device is configured, and this portable monitoring device is directly connected to the on-site processing device as necessary. By doing so, it is proposed that the contents stored in the storage means on the other side of the on-site processing apparatus be rewritten without issuing a communication line and a switching command is issued.

Further, according to the present invention, in the above configuration, the center monitoring device is configured to manage individual information unique to each on-site processing device and common information common to each on-site processing device. It is proposed to create and store information and to perform a rewriting operation of the nonvolatile storage means of each field processing device.

According to the present invention, in the above configuration, the center monitoring device reads out the stored contents of the storage means used for processing in each on-site processing device as necessary.
It is suggested to create necessary information by comparing it with the necessary information stored in itself.

According to the present invention, in the above configuration, the transmission of the switching command in the center monitoring device or the portable monitoring device is performed after rewriting of the storage means on the other side of the on-site processing device.
It is suggested to do it after confirming the contents.

According to the present invention, in the above configuration, the switching of the storage means in each on-site processing device can be performed at any time by a predetermined switching signal and can also be performed in the reset process, and the center monitoring device or the portable monitoring device can be used. It is proposed to perform a reset process according to a switching command from the monitoring device.

Further, the present invention proposes, in the above configuration, to perform a reset process even when a processing abnormality occurs in each on-site processing apparatus.

In the present invention, it is proposed that the storage means for storing information necessary for processing by the on-site processing apparatus is a rewritable nonvolatile storage means.

According to the above configuration, each on-site processing device communicates new required information created by the center monitoring device while continuing processing based on the required information stored in the storage means on one side. The data can be received by the storage means on the other side via the line or directly connected portable monitoring device, and thereafter, by switching the storage means, the new necessary information stored in the storage means on the other side is thereafter obtained. Processing can be performed based on the information. Switching the storage means
Processing can be performed instantaneously, processing during processing is processed as it is with previous information, and processing starting after switching starts processing with new information, so processing is not stopped and continuous processing is performed. be able to.

If the storage means in the on-site processing device is switched by reset processing, the switching can be performed by a switching command from the center monitoring device. The switching is also performed when the processing is performed. Therefore, when a processing abnormality occurs in the processing based on the new required information, the processing can be returned to the processing based on the required information stored in the storage unit before the switching. As described above, such a switching operation can be performed at any time by a predetermined switching signal in addition to the reset process.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, as an example of a remote monitoring system, an embodiment in which the present invention is applied to a system for remotely monitoring a large number of governors of a city gas supply system will be described with reference to the drawings. FIG. 1 schematically shows the entire configuration of a system to which the present invention is applied, and reference numeral 1 (1a, 1b,..., 1)
n) is a governor room installed in an appropriate place of the city gas supply system. In the governor room 1, together with the governor main body 2, the opening meter of the governor main body 2, the primary side and the secondary side pressure of the governor main body 2. Various monitoring and control devices (not shown) such as measurement devices such as sensors, flow meters, and gas detectors, and abnormality detection devices such as governor cutoff detection sensors and SI sensor abnormality detection sensors
Has been established, and it is a collection site for governor monitoring data. The on-site processing device 3 that collects and processes data from these various devices is installed outside the governor room 1.

Reference numeral 4 denotes a common center monitoring device for monitoring the operation of the governor main body 2 at a plurality of locations. The center monitoring device 4 is connected to the on-site processing device 3 at each data collection site via a communication line 5. Thus, a remote monitoring device is formed by communication with each station serving as a station. Hereinafter, "bureau" as necessary
Use the term The communication line 5 applies a public line, a dedicated line, and a wireless line alone or in combination.
The center monitoring device 4 and each on-site processing device 3 constitute communication means corresponding to these communication lines.

FIG. 2 schematically shows an example of the construction of the on-site processing apparatus 3. Reference numeral 6 denotes an opening meter of the governor main body 2, pressure sensors on the primary and secondary sides, a flow meter, and a gas as described above. Data is collected from various monitoring / control devices 7 such as a group of measuring devices such as detectors, a group of abnormality detecting devices such as a governor cutoff detection sensor, an SI sensor abnormality detection sensor, and the like.
The main body processing unit has a function of performing processing such as abnormality determination. Reference numeral 8 denotes a communication processing unit that performs communication processing by connecting to the communication line 5.

The main body processing section 6 collects measurement data from the various devices, records them on a non-volatile recording medium such as an IC card at a predetermined recording interval, and detects an abnormality in the measurement data. It performs processing, connects to the center monitoring device 4 via the communication line 5 via the communication processing unit 8, and sends and receives desired information as needed.

The main processing unit 6 and the communication processing unit 8 can be configured as microcomputer application devices, and although not shown, the CPU, RAM, ROM, input / output interface, nonvolatile recording medium, modem, etc. Consists of elements. The main body processing unit 6 and the communication processing unit 8 can be configured so as to monitor the operation of each by providing a CPU in both of them. Means can be applied.

Each of input, processing, and output processing in the main body processing unit 6 and the communication processing unit 8 is configured to be performed based on, for example, the following system management information and operation management information.

[1] System management information a. Information on communication between the center monitoring device 4 and the on-site processing device 3, such as the station number (telephone number) of the center monitoring device 4 and the own station number (telephone number) of the on-site processing device 3 b. Information on the definition of the input terminal number and the like of the device corresponding to each data and the kind of data, and the setting of the kind and scale of the input data, etc. c. Information on designation of operation formulas in processing, setting of operation parameters, etc. d. Information to specify whether to issue an alarm for each data in data units and input terminal units

[2] Operation management information a. Information related to setting of alarm setting values for each data b. Information such as designation of data to be recorded on a non-volatile recording medium such as an IC card and designation of a recording cycle c. Information such as designation of a data transmission format to the center monitoring device, etc. d. Information on the change of the zero bias adjustment signal level of the sensor of the measuring equipment, etc.

In the present invention, the above-mentioned system management information and operation management information required for the processing in the main body processing section 6 and the communication processing section 8 are stored in storage means 9a and 9b.
Each CPU performs a predetermined process with reference to the information stored in one of these storage units 9. Such storage means 9 can be a rewritable nonvolatile storage means such as an EEPROM, for example.

As schematically shown in FIG. 2, in the present invention, the storage means 9 is constituted by two systems (9a, 9b), and the storage means 9a,
The system 9b can be switched. In a state where the storage means 9a, 9b of one system is switched so as to be referred to the CPU, the storage means 9b, 9b,
9a is configured so that the stored contents can be rewritten.

In FIG. 2, the above-mentioned switching mechanism is symbolically represented by interposing switching switches 10a and 10b between the storage means 9a and 9b, the main body processing section 6 and the communication processing section 8,
This is shown for the sake of convenience, and the switching mechanism can use well-known appropriate means. Reference numeral 11 denotes a switching operation unit,
The switching operation unit 11 is configured to operate by a reset signal to switch between the storage units 9a and 9b.

In the state shown in FIG. 2, the storage means 9a on the left side in the figure is connected to the main processing unit 6, so that the CPU of the main processing unit 6 stores the contents stored in the storage means 9a as necessary information (or station information). Each process is performed as management information). On the other hand, the storage unit 9b on the right side in the figure is connected to the communication processing unit 8 side,
This indicates that the storage means 9b is in a rewritable state.

On the other hand, as will be described in detail later, the center monitoring device 4 is configured to manage individual information and common information unique to each on-site processing device 3. Necessary information necessary for processing of each on-site processing device 3 is created and stored based on necessary information in a storage unit used for the processing. The data format of the necessary information is the same as the data format stored in the storage means 9a, 9b in each field processing device 3.

In the above configuration, when necessary information for processing in each on-site processing device 3 is changed, the necessary information created in the center monitoring device 4 is transmitted to the on-site processing device 3 via the communication line 5. . The method of creating the necessary information in the center monitoring device 4 will be described later.

The on-site processing unit 3 updates the stored contents by writing necessary information from the center monitoring unit 4 to the currently rewritable storage means 9b via the communication processing unit 8. During this time, the main body processing unit 6 continues each processing such as data collection and abnormality detection based on the contents of the necessary information stored in the one-side storage unit 9a.

Next, the center monitoring device 4 reads out the stored contents of the storage means 9b via the communication processing unit 8 and checks whether or not the necessary information to be updated has been correctly stored. , The update process is performed again. When it is confirmed that the data is stored correctly, a switching command is issued to the on-site processing device 3.

Upon receiving the switching command, the communication processing unit 8 issues a reset signal and restarts the system of the local processing device 3.
In such a reset process, the switching operation unit 11 operates in response to a reset signal from the communication processing unit 8 to switch the storage units 9a and 9b. Accordingly, the system processing unit 6 and the communication processing unit 8 restart the system so that the respective CPUs use the necessary information stored in the storage unit 9b for processing, and thereafter, the processing is performed based on the new necessary information. It can be performed. Switching of the storage means can be performed instantaneously, processing during processing is processed as it is with the previous information, and processing starting after switching starts processing with new information, so processing does not stop, A process without interruption can be performed. In this state, the storage means 9a on the other side can be rewritten this time, and when the next necessary information is updated,
This required information can be accepted.

In the above embodiment, the storage means 9a, 9
The switching of b is performed by a reset process involving a restart of the system. In addition, as described above, the storage means 9 is operated in a manner not accompanied by a restart of the system by a predetermined switching command.
a, 9b may be switched.

However, if the configuration is such that the reset processing is performed as in the present embodiment, the storage means 9a and 9b are operated in response to the switching command from the center monitoring device 4 as described above.
Not only can be performed, but also when the predetermined processing abnormality occurs in the on-site processing apparatus 3 and the system is restarted by the reset processing, the switching is performed. When the error occurs, there is an advantage that the process can be returned to the process based on the necessary information stored in the storage unit before the switching.

Next, an example of management in the center monitoring device 4 will be described. That is, as described above, the center monitoring device 4
In this configuration, individual information unique to each site processing device 3 and common information are managed, and necessary information of each site processing device is created and stored based on the information.

For example, FIG. 3 shows an example of the contents of a master file for storing individual information unique to each site processing device 3 managed by the center monitoring device 4. The data stored in the master file are a: the name of the on-site processing device (each station), b: the name of the center monitoring device (management station) that manages this on-site processing device, c: the communication address of the center monitoring device 1, d. : Communication address 2 of center monitoring device, e:
Communication address of the maintenance bureau, f: name of the administrative district where the on-site processing device (station) is installed, g: management code of the station, h: KLNO, i: number of the on-site processing device, j: MBSH,
k: communication address of the on-site processing apparatus, l: type of on-site processing apparatus, m: function name of on-site processing apparatus, n: related on-site processing apparatus 1, o: related on-site processing apparatus 2, p: on-site processing apparatus Classification, q: classification of on-site processing device, r: type of on-site processing device, s: dimensions (governor diameter) specific to on-site processing device, t: communication type (), u: number of objects of on-site processing device ( The number of consumers corresponding to the governor), v: the type of the main device (governor) of the on-site processing device, w: the name of the on-site processing device, etc.

FIG. 4 shows an example of a master file for storing common information in the case where each center processing device 3 is managed by the center monitoring device 4. First, (a)
It shows the contents of a master file that manages the type of field processing device (station). The data stored in the master file includes: a: a number (station type number) representing the type of the field processing device, and b: an item number corresponding to the type of measurement included in the field processing device of each station type number. c:
Item name. For example, for item numbers, 0 to 99
Represents an analog input, and 100 to represent digital inputs.

Next, (b) is a management master file relating to the data corresponding to the item numbers 0 to 99, that is, analog data. In this analog data management master file, each station type number of the station type management master file is provided. A: item number, b: item name, c: item name, d: scale, e:
Base, f: engineering value, g: display scale, h: engineering unit,
i: set date, j: setter, etc.

Next, (c) is a CSV management master file relating to data corresponding to the item numbers 100 to, that is, digital data. In this digital data management file, each of the station type numbers in the station type management master file is used. This is data in which a CSV number is associated with each bit position for each of a plurality of corresponding items. For example, item number 20 in the station type management master file
The contents of the data of No. 1 are the CSV number 6 at the fourth bit position and the CS number at the eighth bit position in the CSV management file.
The V number is 12. Also, the content of the data of item number 202 in the station type management master file is CSV number 1 in the seventh bit position in the CSV management file, and similarly, the content of the data of item number 210 in the station type management master file is This is the CSV number 18 at the 16th bit position in the CSV management file.

Next, (d) is a master file relating to the CSV name and its setting. The CSV name management / setting master corresponds to each CSV number, and a:
CSV name, b: output destination, c: buzzer presence, d: chime presence, e: color change, etc. (d)
As shown in the figure, the CSV is, for example, number 1: on-site, 6: gas leak, 12: power outage, 18: MPA sensor abnormality,
As described above, the output destination, the presence / absence of a buzzer, the presence / absence of a chime, and the color change can be set and saved in correspondence with each CSV.

In the above configuration, the manager of the center monitoring device 4 checks the data of the individual information unique to each site processing device 3 as shown in FIG. 3 and the master file of the common information as shown in FIG. Then, necessary data of each on-site processing device 3, that is, station management information is created by inputting necessary data and the like.

FIG. 5 shows an example of the data structure of the station management information. The data of the part a is created from the master file of the individual information unique to each on-site processing device 3. Also b
The data of the part is determined according to the station type of the part a, and is created corresponding to the input data to the common item shown in FIG.

This data structure is the same as that of the necessary information which is stored and stored in the storage means 9a and 9b in each site processing device 3 and is referred to for processing. That is, the information necessary for processing in each site processing device 3 and the station management information for management of each site processing device 3 in the center monitoring device 4 are made the same to perform centralized management. 4 makes it easy to create a processing program and manages a large number of on-site processing devices with a device on the order of a personal computer.

The creation of the necessary information (station management information) as described above and management based on the information can be performed by displaying and inputting the master file of the individual information and the master file of the common information as described above. As can be seen from the figure and the above description, the confirmation of each data and the inputting of necessary data have a structure that can be managed using words and characters that people use everyday without being conscious of the structure of the computer, Anyone can use it easily.

In the above-described embodiment, the system to which the present invention is applied is a system for remotely monitoring a large number of governors of a city gas supply system. The above-mentioned on-site processing apparatus can be applied to an appropriate system that needs to be monitored by a common center monitoring apparatus.

[0046]

As described above, the present invention has the following effects. a. When changing settings such as pressure measurement range in on-site processing equipment such as data collection equipment at each processing site, there is no need for humans to go to the site and change settings, and all commands to many on-site processing devices And a remote monitoring system that can remotely manage information and information with a center monitoring device. b. Even when the setting is changed in the processing of the on-site processing apparatus, it is not necessary to stop the processing, and the processing can be performed without interruption. . c. In the interface between the person and the machine such as the display on the CRT and the input of data in the center monitoring device, the words and characters that are commonly used by people can be used, so that anyone can easily manage the words and characters. it can. d. By making the information necessary for processing in each on-site processing device and the station management information for managing each on-site processing device in the center monitoring device the same and performing centralized management, the creation of a processing program in each device can be achieved. In addition to being easy, it is possible to manage a large number of on-site processing devices with a device as large as a personal computer. e. The necessary information described above can manage individual information unique to each field processing device and common information common to each site processing device in a human language without being conscious of the structure of the computer.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing an overall configuration of the present invention.

FIG. 2 is a block diagram schematically illustrating an example of a configuration of a field processing apparatus and the like according to the present invention.

FIG. 3 is an explanatory diagram showing an example of a configuration of a master file relating to individual information according to the present invention.

FIG. 4 is an explanatory diagram showing an example of a configuration of a master file relating to common information according to the present invention.

FIG. 5 is an explanatory diagram showing an example of the configuration of station management information according to the present invention.

[Explanation of symbols]

 1 (1a, 1b,..., 1n) governor room 2 governor main body 3 on-site processing device 4 center monitoring device 5 communication line 6 main body processing unit 7 various devices 8 communication processing unit 9a, 9b storage means 10a, 10b switching switch 11 switching operation Department

Claims (7)

(57) [Claims] An on-site processing device installed at a number of monitoring sites, and a common center monitoring device connected to these on-site processing devices via a communication line. When the storage means for storing necessary information is configured in two systems, the storage means used in the processing is configured to be switchable, and the processing is performed based on the necessary information stored in one of the storage means. the storage contents of the other side of the storage unit rewritably configured to, center monitoring device is optionally processed in the field processing unit
Reads the stored contents of the storage means used for
Create the required information by comparing it with the stored required information ,
A remote monitoring apparatus characterized in that the stored contents of the other storage means are rewritten through a communication line and a command for switching the storage means used in the processing is issued. 2. An on-site processing apparatus installed at a number of monitoring sites.
And these field processing devices are connected via a communication line
Composed of a common center monitoring device,
Is a memory device that stores information necessary for those processes.
By constructing two stages, the storage means used in the processing is
It is configured to be switchable and stored in the storage means on one side.
While processing based on required information
The contents stored in the storage means on the side are rewritable, and the center
The visual observation equipment will provide the necessary information for each on-site
Information on the other side via a communication line.
Rewrite the contents of the column and use it in processing.
And a command to switch the storage means.
The switching of the storage means in the device is performed by a predetermined switching signal.
In addition to the configuration that can be performed at any time,
Configuration that can be performed, whether it is a center monitoring device or a portable monitoring device
Reset processing by these switching commands.
Remote monitoring device. 3. A processing error occurs in each on-site processing apparatus.
Claims that reset processing is performed even if it is done
Item 3. The remote monitoring device according to Item 2. 4. Each site processing created by the center monitoring device.
A portable monitoring device that stores necessary information for the
This portable monitoring device can be directly connected to the on-site
Direct connection allows on-site processing without communication lines
Rewriting the contents stored in the storage means on the other side of the device
Wherein a switching command is issued to the controller.
The remote monitoring device according to any one of claims 1 to 3. 5. The center monitoring device is fixed to each on-site processing device.
The system is designed to manage the individual information that has
Create necessary information for each on-site processing device based on these information
And save and rewrite the storage means of each on-site processing device.
5. An operation according to claim 1, wherein the operation is performed.
A remote monitoring device according to item 7. 6. A center monitoring device or a portable monitoring device.
Is transmitted to the storage means on the other side of the on-site processing unit.
After the rewriting process of the
The method according to any one of claims 1 to 5, wherein
Remote monitoring device. 7. Information required for processing by a site processing device
Is rewritable nonvolatile storage means.
The method according to any one of claims 1 to 6, wherein
Remote monitoring device.