JPH06242805A - Pump plant remote monitoring and controlling device - Google Patents

Abstract

PURPOSE:To attain the automatic control of operation for pump gates of each local pump plant and also the automatic out-machine field safety control and the automatic equipment monitoring by providing a sensor mechanism having a learning function on an equipment monitoring means of each plant and an image processing means on a local pump plant monitor means of a center control office respectively and by performing the mutual transfer of information between a local pump plant monitor control means and a remote monitoring and controlling means of the center control office. CONSTITUTION:An equipment monitor means 140 inputs the output of an equipment sensor 141 to a sensor mechanism 142 having a learning function. The mechanism 142 decides the presence or absence of abnoruality of equipments, and the output of the mechanism 142 is supplied to a local plant monitor means 230. The monitoring result acquired based on the input of the means 230 is supplied to a local plant control means 220 which shifts and decides a monitoring range as necessary. Then, the means 140 of each plant is controlled by the output of the means 220.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump plant remote monitoring control device applied to remote monitoring control of a plurality of pump plants.

[0002]

2. Description of the Related Art The structure of a conventional pump plant is shown in FIG.

In the pump plant shown in FIG. 8, water such as a river or a reservoir is taken in from an inflow gate 1 and stored in a pump well 3 through a settling ground 2. The water in the pump well 3 is pumped up by a plurality of controlled pumps 4, supplied to the discharge tank 5, and discharged from the discharge gate 6 into the main stream 7 of the river.
Drained to.

Outside the pump building 8, a camera 9 for monitoring safety before and during driving and a speaker 10 for urging safety to the surroundings are provided. Also, pump building 8
A prime mover 11, which is a power source of the pump, is provided in the building, and drives the pump 4 via the speed reducer 12. Further, a sensor 13 is attached to each device in order to inspect and monitor these devices.

As a conventional control method of the pump 4, a skilled operator is based on two meteorological information of rainfall amount and rainfall intensity, and three observation information of water level, inflow amount and pump discharge amount of the pump well 3. Determines the number of pumps and the start timing of the pumps 4 that are economically necessary, and creates an operation plan.

Further, as shown in 2, the pump / gate operation control means has a water level predicting means 121 having a learning function for predicting the water level of the pump well, and a pump discharge amount using the output of the water level predicting means as an input. Demanded discharge amount prediction means 122 having a learning function for predicting the above, pump operation plan means 123 having knowledge for creating an operation plan of the pump using the output of this pump discharge amount prediction means as input, and this pump operation The inflow rate predicting means 210 having a function of predicting the pump well inflow rate by inputting the output of the planning means and the forecast weather information and using the output as the input of the water level predicting means at the next time is provided, and the water level predicting means 12 is provided.
1 and the required discharge amount predicting means 122 allow the skilled operator to learn the operation control technique, and the operation planning means 123 organizes and stores the knowledge about the skilled operator's operation control in the form of rules. A control method has been developed to obtain an operation control command equivalent to the operator's judgment.

Regarding the conventional safety management before and during operation, an operator goes to a plant as shown in FIG. 8, and the outside of the machine is visually checked and monitored by a camera 9 mounted outside the building, and a speaker 10 is used. It was done by the warning etc. Furthermore, before-operation inspection and operating monitoring of equipment on-site such as the prime mover 11, the speed reducer 12, and the pump 4 are also performed by visual inspection and observation of signals from the sensor 13 attached to each equipment.

As a conventional remote monitoring control method, as shown in FIG. 9, information is exchanged between the local pump plant monitoring control means 100 and the center management office remote monitoring control means 200. Is proposed.

Local pump plant monitoring control means 10
The pump gate control unit 120 of 0 predicts the inflow amount by using the output as an input of the inflow amount prediction unit 210 provided in the center management office remote monitoring control unit 200, and inputs the predicted value to each pump gate. Operation control means 1
Operation control is performed at 20.

Further, in the local plant monitoring means 230, the image output from the camera of the off-site safety management means 130 and the output from the equipment sensor 141 of the equipment monitoring means 140 are used as inputs to remotely monitor the inside of the equipment by an operator. Local plant control means 200 based on the monitoring result.
Then, the monitoring method is corrected, and the out-of-machine safety management means 130 and the equipment monitoring means 140 continue to be monitored based on the output control signal.

[0011]

Aging of skilled operators,
From the perspective of personnel shortages due to difficulties in knowledge transfer, remote monitoring control is currently desired to automate / unmanner local plants and centralize monitoring / control of single or multiple pump plants from a central management office. ing. On the other hand, methods of automating the operation control of pumps and gates, safety management outside the aircraft, and remote inspection / monitoring of equipment inside the aircraft have been proposed. However, the method of performing equipment monitoring by mounting a sensor for each equipment is costly, and in the method of checking the images of each local plant by the operator at the center management office in the monitoring means of the local plant, When the number of plants for supervisory control increases, it is necessary to increase the number of operators, and there is a problem that it does not lead to labor saving.

The present invention has been made in view of the above situation,
By exchanging information between the local pump plant monitoring control means and the center management office remote monitoring control means, operation control of pumps and gates of each plant, safety management outside the machine, equipment monitoring, etc. can be made at a practical cost. And automate
It is an object of the present invention to provide a pump plant remote monitoring and control device capable of unmanning a local plant and reducing the number of operators in a center management office.

[0013]

SUMMARY OF THE INVENTION The present invention provides a remote monitoring and control system for a plurality of pump plants located in a watershed,

In order to control the water level of the pump well of each pump plant by inputting time series information of water level and weather,
Pump / gate operation control means that has a learning function to output operation / stop commands for multiple pumps and gate opening / closing commands, and to perform safety management outside the plant before and during operation of each pump plant using cameras and speakers Equipment safety management means, multiple sensors for pre-operation inspection and operation monitoring inside the equipment, and equipment monitoring that has a learning function to detect equipment abnormalities based on the outputs of these sensors Local pump plant monitoring and control means comprising

The pump well inflow amount is predicted by inputting the output of the pump / gate operation control means of each pump plant, the weather information, and the water level information of the observation point in the basin, and the output is the pump / gate operation control means at the next time. The local plant monitoring is performed by receiving the inflow amount predicting means that is the input of, the output from the off-site safety management means and the equipment monitoring means of each pump plant, and the output from the image processing means that processes the image from the off-site camera. Local plant monitoring means to do,
It is provided with a center management office remote monitoring control means which comprises an output of the monitoring result of the local plant monitoring means as an input and a local plant control means for controlling the off-site safety management means / device monitoring means of each pump plant. It is characterized by

[0016]

The local pump plant monitoring control means is the pump / gate operation control means, the off-site safety management means, the equipment monitoring means, and the center management office monitoring control means is the inflow amount prediction means, the local plant control means, It has local plant monitoring means.

The pump / gate operation control means of each plant outputs the operation control command by learning the operation record data of the skilled operator by the learning function and acquiring the knowledge / judgment. Also. This output is used as a part of the input to calculate the predicted inflow of each plant by the inflow predicting means, and these are used as a part of the input of the operation control means in order to improve the control accuracy.

In the off-site safety management means, a speaker warns the surroundings, a camera takes a picture of the out-of-machine situation, and the video output is used as an input of the local plant monitoring means. Automatically monitor for the presence of Then, the processing result is input to the local plant control means, the monitoring range is moved / narrowed as appropriate, and the output controls the off-site safety management means of each plant.

In the equipment monitoring means, the output from the equipment sensor is input to a perceptual mechanism having a learning function, the perceptual mechanism determines whether or not there is an abnormality in the equipment, and the output is input to the local plant monitoring means. Then, the monitoring result based on this input is input to the local plant control means, where the monitoring range is moved / narrowed as appropriate, and the output is used to control the equipment monitoring means of each plant.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a pump plant remote monitoring and controlling apparatus according to the present invention.

In FIG. 1, reference numeral 100 denotes a local plant monitoring control means for operating a pump gate of a local pump plant, safety management outside the machine, and inspection / monitoring of equipment.

Reference numeral 200 denotes a center management office remote monitoring control means for calculating the inflow prediction of the entire basin, safety management status of each plant, and checking / confirming equipment inspection / monitoring information at the center management office. .

In the pump / gate operation control means 120 of the pump plant 110 in the local plant monitoring control means 100, as shown in FIG. Input the time-series information of the pump well water level and 5 minutes interval from 30 minutes before the pump discharge amount to the present, and predict the water level of the pump well after 5 minutes. The output of this water level prediction means and the water level change rate
The time-series information at intervals of 5 minutes from 30 minutes before the water level deviation to the present is input to the required discharge amount prediction means 122 having a learning function to predict the pump discharge amount after 5 minutes, and output this output to each pump. Pump operation planning means 12 having knowledge of limiting conditions such as usage history, starting time, restart cooling time, etc.
Input to No. 3, the inference engine creates a pump / gate operation plan, and outputs a pump / gate control command. In addition, in order to improve the degree of control, the forecast weather information from the Meteorological Agency “AMeDAS”, the current rainfall intensity, and the pump operating state are input to the inflow rate predicting means 210, and the rainfall outflow model of the target basin after 5 minutes Predict the inflow. Incidentally. For the learning here, a neutral network equipped with a BP (Back Propagation) learning method is adopted, and the driving performance data of past skilled operators is learned offline. 3 to 5 show an example of changes in the input / output values of the water level predicting means 121, the required discharge amount predicting means 122, and the pump operation planning means 123.

The out-of-machine safety management means 130 warns the surroundings with a speaker before the operation and photographs the situation outside the machine by rotating the camera, and as shown in FIG. As an input, the image processing means 231 automatically monitors the presence or absence of people around the plant by comparing with the normal time image. And
The processing result is input to the local plant control means 220, and when there is a possibility that there are people, the monitoring range is moved.
Narrowing down is performed as appropriate, and the output controls the offsite offsite safety management means 140.

In the device monitoring means 130, as shown in FIG. 7, the output from the integrated non-contact device sensor 141 with a rotating mechanism including an infrared camera, a visible camera, a gas sensor, a microphone, etc. is subjected to image processing and signal processing. , And, after voice processing, input to each sensory mechanism 142 having a learning function for learning the normal state, the sensory mechanism 142 determines whether there is an abnormality in the device, and inputs the output to the local plant monitoring means 230. To do. Then, the judgment result based on this input is input to the local plant control means 220, where the monitoring range is moved / narrowed as appropriate, and the output is used to control the equipment monitoring means of each plant. For the learning here as well, a neutral network equipped with a BP (Back Propagation) learning method is adopted, and the operation record data of past skilled operators is learned offline.

[0026]

As described above, according to the pump plant remote monitoring and controlling apparatus of the present invention, the mutual information exchange between the local pump plant monitoring and controlling means and the center management office remote monitoring and controlling means allows each plant to be exchanged. Operation control of pumps and gates, safety management outside the plant, automation of equipment monitoring can be performed at a practical cost, unmanned local plants, and labor saving of operators at the center management office are possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a pump plant remote monitoring control apparatus according to the present invention.

FIG. 2 is a block diagram showing the configuration of an existing pump / gate operation control means.

FIG. 3 is a time chart showing an example of changes in each input / output value of the water level prediction means for explaining learning control of the pump / gate operation control means in the above embodiment.

FIG. 4 is a time chart showing an example of changes in each input / output value of the required discharge amount prediction means for explaining the learning control of the pump / gate operation control means in the above embodiment.

FIG. 5 is a time chart showing an example of changes in each input / output value of the pump operation planning means for explaining learning control of the pump / gate operation control means in the above embodiment.

FIG. 6 is a block diagram showing an example of functions of off-site safety management means in the above embodiment.

FIG. 7 is a block diagram showing an example of a function of a device monitoring means in the above embodiment.

FIG. 8 is a conceptual diagram of a pump plant.

FIG. 9 is a block diagram showing a configuration example of a conventional pump plant remote monitoring control device.

[Explanation of symbols]

100 ... Local pump plant monitoring control means, 110
... Target pump plant, 120 ... Pump / gate operation control means, 130 ... Offsite safety management means, 140 ... Equipment monitoring means, 141 ... Equipment sensor, 142 ... Perception mechanism, 20
0 ... Center management office remote monitoring control means, 210 ... Inflow amount prediction means, 220 ... Local plant control means, 2
30 ... Local plant monitoring means, 231 ... Image processing means.

Claims (1)

[Claims] 1. A local pump plant monitoring control means provided in each of a plurality of pump plants located in a basin, and a center management office integrally managing each pump plant via each local pump plant monitoring control means. In the pump plant remote monitoring and controlling apparatus including the remote monitoring and controlling means of the above, the local pump plant monitoring and controlling means includes the pump well water level of each pump plant based on time series information of water level and weather. Pump / gate operation control means having a learning function for outputting an operation / stop command for a plurality of pumps and a gate opening / closing command for performing control, and before and during operation of each pump plant using image and sound information. Safety management means for safety management outside the aircraft and multiple sensors for performing pre-operation inspection and operational monitoring inside the aircraft. It has a device monitoring means that uses a sensory mechanism that has a learning function to detect abnormalities of the device based on the output of each of these sensors. Inflow rate prediction means that predicts the pump well inflow rate based on the output of the gate operation control means, weather information, and water level information of the observation points in the basin, and uses the output as the input of the pump / gate operation control means at the next time. When,
The local plant monitoring means for performing local plant monitoring in response to the outputs from the off-site safety management means and equipment monitoring means of each pump plant, and the output from the image processing means for processing images taken off-site, and the local plant monitoring means. A remote control system for a pump plant, comprising local plant control means for controlling the off-site safety management means / device monitoring means of each plant based on the output of the monitoring result.