Airborne collision avoidance system, ACAS transmit-receive host digital signal loop self-detection system and method
A digital signal and self-inspection system technology, applied in traffic control systems, aircraft traffic control, instruments, etc., can solve problems that affect test accuracy, unfavorable equipment fault location and maintenance guarantee, and lack of testing conditions, so as to meet the requirements of equipment Test and maintenance requirements, improve testability and maintainability, and facilitate equipment production and maintenance
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[0042] The present invention uses the original component module JSCPU, coding FPGA, decoding module, FZCPU and its inherent communication channels to work together without adding additional hardware equipment, and is implemented by software programming, and its composition block diagram is as follows: figure 1 shown. During the entire working process of the equipment, the self-check runs periodically at a frequency of 1s / time, and the FZCPU will report the self-check fault code to the carrier maintenance system through the ARINC429 bus for fault display and recording.
[0043] Each module is described below.
[0044] JSCPU is used to issue C-mode closed-loop self-check command or S-mode closed-loop self-check command to the encoding FPGA, receive decoded data, judge the self-check result according to the decoded data, and transmit the self-check result to FZCPU;
[0045] The encoding FPGA is used to encode and generate standard C-mode response codes and standard S-mode respon...
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