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随着IP(互联网协议)在测控领域的广泛应用,丢包、时延等IP网络特性对测控信息传输的可靠性提出了挑战。针对遥/外测、引导及上行控制类数据在信息传输各个环节的技术特点,本文深入研究了各类测控数据的信息传输模型及工作流程,提出了适用于不同场景的可靠性保障方法,并通过数学仿真进行了计算分析。仿真结果表明,队列中断选切策略可有效保障遥/外测及引导类信息的可靠传输,N判M模式下的上行控制类信息传输可靠性优于N选1模式。
With the extensive application of IP (Internet Protocol) in the field of measurement and control, IP network characteristics such as packet loss and delay pose challenges to the reliability of the measurement and control information transmission. Aiming at the technical characteristics of remote / external measurement, guidance and uplink control data in all aspects of information transmission, this paper studies the information transmission model and workflow of various types of measurement and control data in-depth, and puts forward the method of reliability assurance applicable to different scenarios. Through the mathematical simulation of the calculation and analysis. The simulation results show that the queue cut-off strategy can effectively guarantee the reliable transmission of telemetry and guidance information. The reliability of information transmission in N-mode M is better than that of N-option mode.