Alarm method based on function safety threshold of numerical control system
A numerical control system and functional safety technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problems of high real-time response speed, high cost, and large number of control signals for state judgment, saving design and development cost, effectiveness of improving effectiveness, ensuring integrity and consistency
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[0046] The present invention will be further described in detail below in conjunction with the embodiments.
[0047] The invention relates to the field of numerical control system functional safety, in particular to a numerical control system functional safety threshold calculation device. The invention establishes a numerical control system architecture based on component technology. The system functional safety threshold index is assigned to the functional components, and the system practicability is the objective function, and the functional component reliability and cost function are the constraints. The relative weights of the elements of each layer of the CNC system architecture are calculated by the analytic hierarchy process, and the allocation index of each component is obtained through the cultural algorithm. By adopting the method of the invention, while ensuring that the functional safety threshold index of the numerical control system meets the requirements, the ...
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