Channel selection method of three-redundancy flight control computer

The invention relates to a channel selection method of a three-redundancy flight control computer, and belongs to the technical field of redundancy computer system design. The method includes: acquiring flight parameters of each channel, and performing integration to obtain flight parameter safety levels of the channels; further combining the internal parameters of the channels to synthesize the security levels of the channels, and acquiring the security levels of other channels of the flight control computer through data transmission between the channels; comparing the plurality of channel security levels of the redundancy computer to obtain the channel effectiveness of the redundancy computer; and selecting one computer as a control computer through the voting arbitration circuit. According to the method, a channel dynamic security level method is adopted, an inter-channel comparison technology is combined, selection of the optimal security channel is achieved, the multi-channel security level method can gi