Method for optimizing multi-controller cooperative work

Abstract

The invention discloses a method for optimizing cooperative work mechanisms in a multi-channel control system. The method is mainly applied to a control system composed of multiple controllers or multiple channels. The method specifically comprises the steps that operation cycles of CPUs of the multiple channels are orderly arranged, and the channels have equipotent probability of jumping of signals which are collected in the first place; CPU calculation loads are controlled through adjustment of the lengths of the CPU cycles to ensure that from the first cycle after a trigger signal is generated, the trigger signal and a logic judgment signal sent by a channel receiving the trigger signal in the first place can be collected by a channel with the cycle arranged in the rear portion at the same time; input signals are adjusted and allocated to ensure that the input signals can be directly collected by each channel; logic judgment is optimized and synthesized to prevent signals having the same source from being reused. The method for optimizing multi-controller cooperative work can reduce the number of calculation cycles of each channel of the control system composed of the controllers after the trigger signals are received and shorten response time.

Description

technical field [0001] The invention belongs to automatic control technology, and in particular relates to the integration technology and control algorithm technology of a multi-channel automatic control system. Background technique [0002] In the traditional multi-channel control system, multiple controllers work together in such a way that multiple channels collect signals at the same time, and each channel outputs a car jump signal to the outside, and there will be a separate car jump judging device outside for logical judgment. . When multiple channels output the car jump signal, which conforms to the logic of the external car jump judging device, the car jump effect will be generated. Take the case of 4 channels as an example: [0003] Each channel is actually an independent controller, which operates with a fixed computing cycle and has independent acquisition, output and computing functions. The 4 channels communicate with each other to form a control system. Rea...

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Problems solved by technology

[0009] 2. The number of input signals of the multi-channel control system may be less than the number of channels in some working conditions

In this way, there will inevitably be 1 (in the case of 3 signals) or 2 (in the case of 2 signals) channels that have not collected the signal in this case, so that the position of the channel that first collects the signal jump may be at the end , the entire control system may only collect the jump information one cycle after the signal jumps, which is not conducive to improving the response speed

Moreover, when the signal acquisition channel fails (such as CPU failure, memory failure), it will directly reduce the signal acquisition of the entire system

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