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Control device of control system and elevator system

A control device and control system technology, applied in general control systems, control/regulation systems, testing/monitoring control systems, etc., can solve problems such as control system stoppage, and achieve the effect of improving operation stability

Inactive Publication Date: 2013-03-06
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Therefore, until an abnormality is diagnosed in the operation information, the operation state of the operation amount adjustment mechanism is regarded as a normal operation state, so when an abnormality occurs, in the worst case, it may cause an emergency stop of the control system

Method used

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  • Control device of control system and elevator system
  • Control device of control system and elevator system
  • Control device of control system and elevator system

Examples

Experimental program
Comparison scheme
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no. 1 example

[0042] figure 1 It is a block diagram of a complete system with an abnormal sign diagnosis function. The plant is roughly composed of a control signal generating device 11, a plant operating device 12 for operating or running the plant (hereinafter referred to as "operation") based on the control signal of the control signal generating device 11, and a slave plant for testing the plant. The sensor group 13 is composed of the operating conditions obtained from the operating results of the surrounding environment and the complete system.

[0043] The control signal generating device 11 is constituted by a computer including an input / output unit, a storage unit, and a computing unit, and has a function of calculating and outputting a control signal Sg11 for operating the plant operating device 12 .

[0044]The control signal Sg11 is obtained by causing the sensor group 13 to detect operation information fluctuating due to environmental information and operating conditions of the...

no. 2 example

[0071] Refer to the following Figure 4 and Figure 5 A second embodiment of the present invention will be described. Figure 4 It is a block diagram of a complete system with abnormal early diagnosis function. The structure of the complete system is the same as figure 1 The complete system shown is largely the same except for the way the normal control signals are generated.

[0072] Figure 4 The comparison signal storage device 41 shown is composed of Figure 5 The shown teaching signal database 51 is constituted, and the teaching signal stored in the teaching signal database 51 is read in synchronization with the input timing of the control signal Sg11 input from the control signal generating device 11, and is sent to the abnormal sign detection device 15.

[0073] The teaching signal in the teaching signal database 51 corresponds to a design reference value related to the control signal Sg11 or a control reference value specified in a specification, and the reference...

no. 3 example

[0082] Refer to the following Figure 6 and Figure 7 A third embodiment of the present invention will be described. Figure 6 It is a block diagram of a complete system with abnormal early diagnosis function. The structure of the complete system is the same as figure 1 The complete system shown is substantially the same, the difference lies in the structure of the anomaly detection device.

[0083] Such as Figure 7 as shown, Figure 6 The abnormal sign detection means 61 is composed of a comparison unit 71 and an abnormality degree calculation unit 72, and is configured to output an abnormality degree signal Sg61. Wherein, the function and function of the comparison unit 71 are the same as image 3 The comparison unit 31 shown is the same, so its repeated description is omitted here.

[0084] The evaluation value of the comparison unit 71 is sent to the abnormality degree calculation unit 72, and the abnormality degree of the control signal is calculated in the abnorma...

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PUM

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Abstract

The invention provides a control device of a control system and an elevator system. In the conventional systems, it is impossible to detect faults until they appear in the operation of the operation amount adjustment mechanism. It has therefore been difficult to detect how much a fault has progressed before it actually takes shape. The operation amount adjustment mechanism is considered to be operating normally until a fault is diagnosed from the operation information. Once the fault occurs, the control system can be brought to an emergency stop in the worst-case scenario. A control device for use with a control system of the present invention includes an evaluation means for evaluating a normal control signal in effect when the control system is in normal operation and an actual control signal currently in effect, and a determination means for determining that the control equipment associated with the control signal includes a fault cause or a failure cause if a predetermined degree of association is absent between the normal control signal and the actual control signal upon evaluation by the evaluation means. Thus, it is possible to make fault predictions.

Description

technical field [0001] The present invention relates to a control device used in the control system represented by the elevator system, complete power generation system and water supply and drainage system of the building, especially relates to a control device capable of correcting the control system before abnormalities and failures occur. The control device of the control system of the control system of the sign diagnosis function for diagnosing the signs of such abnormalities and failures. Background technique [0002] In order to protect the control equipment used in the control system (such as the operation amount adjustment mechanism of the motor, flow control valve, etc.) (hereinafter referred to as "abnormality") to detect, therefore, the research related to the above-mentioned detection technology is constantly making progress. [0003] For example, various abnormality detection methods have been proposed for a control device that drives and controls the motion am...

Claims

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Application Information

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IPC IPC(8): B66B5/00B66B13/14
CPCG05B23/0224B66B5/0018G05B2219/45014G05B23/0275
Inventor 佐伯崇中村浩三
Owner HITACHI LTD