JPH09293029A - Information equalizing and processing method in supervisory control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information equalizing and processing method where an information equalizing time is shortened and a load at the time of equalization is reduced in a supervisory control system which is distributed and constituted of an information collecting device for receiving contact information which indicates the state of a supervisory and control equipment and a job processor for inputting the information and executing various kinds of operations. SOLUTION: The information collecting device is permitted to store the standard contact state of a monitoring object and the job processor is to store the standard contact state of the monitoring object and a derived contact state. At the time of state information equalization, the job processor executes standard state loading at first (step S1 ), the information collecting device executes comparison with the standard state as against a state equalizing request and the state change of non-coincidence is transmitted (step S2 and S3 ). Then, state change equivalent to non-coincidence is received and a non-coincident portion state and the non-coincident-portion deviation state are updated (step S4 , S5 and S6 ).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to accelerating information equalization processing at the time of system startup of a supervisory control system product composed of distributed device groups, and relates to an information equalization processing method of a supervisory control system.

[0002]

2. Description of the Related Art A conventional distributed supervisory control system is shown in FIG.
As shown in FIG. 2, the information collection device 1 receives contact information indicating the state of the device to be monitored and controlled, and the work processing device 2 that inputs the information and performs various calculations.

When the system configured as shown in FIG. 3 is started up, equalization processing is performed by transmitting and receiving all contact information in the procedure as shown in FIG. That is, in response to the all information input request (step S ₁ ), the information collecting device 1 performs the business processing on the latest information (steady state information) of all contacts at the time of initialization and the changed contact information (state change information) at the time of state change. It is transmitted to the device 2 (step S ₂ ). In the business processing device 2,
Performs various arithmetic processing based on the received information (Step _{S 3, S 4, S 5} ).

[0004]

The supervisory control system is
Information is being refined, control targets are increasing, business processing is becoming more sophisticated and complex. Therefore, the input contact information increases, and the processing amount for one contact also increases. The processing (information equalization processing) at the time of starting the apparatus is input of all the contacts, updating the internal contact state, information derived from the internal contact state, and recreating the state. Since these processes are proportional to the amount of information, the equalization process load and processing time increase.

Further, for the user of the apparatus, there is a problem that it takes a long time until the system can be used, and the amount of equalization processing is prominent, which requires a hardware investment that peaks. Is occurring.

The present invention has been made in view of the above points, and an object thereof is to provide an information equalization processing method for a supervisory control system, which shortens the equalization time and the load at the time of equalization. .

[0007]

SUMMARY OF THE INVENTION The present invention is an information collecting device for receiving contact information indicating the state of a monitored / controlled device,
In an information equalization processing method of a supervisory control system that is distributed and configured with business processing devices that input the information and perform various calculations, (1) monitor the standard contact state of the monitoring target of the information collection device to the business processing device. The target standard contact state and the derived contact state are stored respectively, and when equalizing state information,
The information collection device is compared with a standard contact state, and a state change process is performed by the business processing device with respect to a difference from the standard contact state. (2) The contact state of the monitoring target in the business processing device and An area for saving the derived contact state is provided to save periodically, and at the time of state information equalization, the save state of the business processing device is notified to the information collecting device, and the information collecting device is informed of the notified state. The feature is that the difference of is subjected to a state change process.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the present invention, since the contact state of the monitoring target is fixed to some extent during normal operation,
The standard state is stored in the information collecting apparatus 1 and the business processing apparatus 2 (has a standard pattern to be monitored). The work processing device 2 also stores the standard state of a state derived from the contact state. As a result, when the status information is equalized, the work processing apparatus 2 only needs to change the status from the standard status.

That is, the present invention is implemented, for example, according to the flowchart of FIG. First, the business processing device 2 loads the standard state (step S ₁ ), and the information collecting device 1 compares the state equalization request with the standard state.
The non-coincidence is changed and transmitted (steps S ₂ and S ₃ ). And
The unmatched state variation is received, and the unmatched state and the unmatched state derived state are updated (steps S ₄ , S ₅ , S ₆ ).

[0010]

In the present invention, the work processing apparatus 2 is provided with an area for saving the internal contact state and the state derived from the contact, and saves them periodically. When equalizing the status information, the internal contact status saved from the work processing apparatus 2 is transmitted to the information collecting apparatus 1. As a result, the information collecting apparatus 1 only needs to process the difference from the status transmitted from the business processing apparatus 2.

That is, the present invention is implemented, for example, according to the flowchart of FIG. First, the business processing device 2 loads the save state and sends out the internal state (steps S ₁ and S ₂ ). The information collecting device 1 compares the contact state and the state equalization request with the reception state, and transmits the disagreement in a state change (steps S ₃ and S ₄ ). Then, the unmatched state variation is received, and the unmatched state and the unmatched state derived state are updated (steps S ₅ , S ₆ , S ₇ ).

[0012]

As described above, according to the invention of claim 1,
Since the state equalization process is only the difference process from the standard state, the equalization time is shortened and the equalization load is reduced. According to the invention of claim 2, in addition to the effect of the invention of claim 1, since the state change processing is performed only for the difference from the state immediately before the apparatus is stopped, there is an effect that both the equalization time and the equalization load are substantially eliminated. Can be expected.

[Brief description of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a block diagram showing another embodiment of the present invention.

FIG. 3 is a block diagram of a distributed supervisory control system.

FIG. 4 is a flowchart showing conventional state equalization processing.

[Explanation of symbols]

 1 ... Information collection device 2 ... Business processing device

Claims (2)

[Claims] 1. An information equalization processing method for a supervisory control system, which is distributedly configured with an information collecting device that receives contact information indicating the state of a device to be monitored and controlled, and a business processing device that inputs the information and performs various calculations. , The information collecting device stores the standard contact state of the monitoring target, the business processing device stores the standard contact state of the monitoring target and the derived contact state, and when the status information is equalized, the standard contact state of the information collecting device is stored. The information equalization processing method of the supervisory control system, characterized in that the job processing apparatus performs a state change process on the difference from the standard contact state. 2. An information equalization processing method for a supervisory control system comprising an information collecting device for receiving contact information indicating the state of a device to be monitored and controlled and a business processing device for inputting the information and performing various calculations. The business processing device is provided with an area for saving the contact state of the monitored object and the derived contact state, which is periodically saved, and when the status information is equalized, the save state of the business processing device is notified to the information collecting device. An information equalization processing method for a supervisory control system, wherein the information collecting device processes the difference from the notified state.