Stage control system and method based on heterogeneous redundancy

Abstract

The invention provides a stage control system and method based on heterogeneous redundancy. The system comprises a console, a first controller connected with the console, a second controller heterogeneous with the first controller, and a motor frequency converter connected with the first controller and the second controller. The console is used for sending a control instruction to the first controller or the second controller under manual control and receiving data sent back by the first controller or the second controller; the first controller and the second controller are used for controlling the motor frequency converter according to a received instruction; and when all the first controllers fail due to the same reason, the second controller controls the motor frequency converter. According to the invention, the second controller which is heterogeneous with the first controller is arranged, and when all the first controllers fail due to the same reason, the second controller is switched to work, so that the working reliability of the controller can be obviously improved.

Description

technical field [0001] The invention belongs to the technical field of stage control, and in particular relates to a stage control system and method based on heterogeneous redundancy. Background technique [0002] With the continuous development of my country's economy and spiritual and cultural construction, people's demand for various performances is increasing, and the complexity of the corresponding performances is also constantly hitting new heights. Therefore, it is necessary to introduce a control system to uniformly control large-scale stage actuators. . However, the existing stage control architecture generally only meets the functional requirements, and lacks in-depth optimization design in terms of overall system robustness, robustness, and reliability. When a single point in the system fails, the overall structure may lose its ability to control, eventually leading to the failure of the performance and causing heavy losses. [0003] In order to prevent the occur...

AI Technical Summary

Problems solved by technology

This optimization only improves the reliability of the controller to a certain extent, and the rest of the system does not improve

In addition, since the standby PLC and the main PLC in the prior art generally use the same brand and model of equipment, it is impossible to eliminate the problem that the main and standby PLCs fail at the same time due to the same reason, that is, common cause failure.

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