Pin and release simulation data source system

Abstract

Containment and release simulation data source system includes CPCI data source equipment and back-end computer. The hardware of CPCI data source equipment includes power board, CPU board and simulation source board. The power board is used to supply power to the whole system, and the CPU board is the The main control board and the analog source board realize the transmission of three serial port signals, the output of one ignition signal, and the input of one data request signal; the software of CPCI data source equipment adopts VxWorks operating system, and the application software includes initialization module, network module and serial port synchronization The sending module and the initialization module are used for the initialization of the application software. The network module realizes the network reception and storage of the analog source data and the reception and control execution of the ignition signal. The serial port synchronous sending module realizes the response of the data request signal and controls the synchronization of the analog source data send. The problem of synchronous and real-time sending of three-way simulation data of three-way redundant system is solved.

Description

Technical field [0001] The invention relates to a containment and release simulation data source system, which is applied to the field of measurement and control equivalent simulation of a launch vehicle. Background technique [0002] The containment release system performs fault detection on the working status of key systems such as the engine on the arrow before and after the engine is ignited, and releases the rocket after confirming that the detected system is working normally. Reduce the probability of accidents that endanger the safety of rockets and launch sites due to early failures of key systems such as engines, and improve rocket launch and flight safety and flight reliability. [0003] The containment release system is usually divided into a containment release measurement and control system and a containment release device. Restrict and release the functions of the measurement and control system for parameter collection, transmission, fault judgment, and sending instr...

AI Technical Summary

Problems solved by technology

[0007] (1) The pure hardware method is used for design, which is highly pertinent, but it is flexible and difficult to expand and configure. It is difficult to guarantee fault injection and data recording. During the test phase of the pinning and release principle, the verification requirements Changes may result in hardware changes;

[0008] (2) Using software programming under the general platform to realize the equivalent system of the simulation function, obviously the real-time performance cannot meet the requirements, and it is difficult to accurately control the synchronization accuracy and the real-time transmission of data under the Windows operating system;

[0009] (3) For the simulation data source, a three-redundant hardware system is used. One device must contain three CPUs to complete their respective functions. This solution also has defects, and the complexity of both hardware design and software synchronization design is very high. high and expensive

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