航天真空热试验测控平台可靠性保障技术探讨

摘要

Aiming at the problems of software reliability,availability and maintainability in aerospace system,several aspects such as reliable software model,fault detection technology,reliable database were analyzed and studied.Combined with the cur-rent research status of the fault avoidance,troubleshooting and fault-tolerant technology,the equipment layer based on the com-mon three layer structure model was further integrated,a architecture model with four layers was presented.Taking the space-craft vacuum thermal test as an example of the bottom-up method was adopted to introduce how to apply the model with dependa-ble design to improve the reliability of the whole system,in terms of the equipment control layer,high available database layer, load balancing cluster layer and the display layer.%由于航天测控系统在软件可靠性、可用性、易维护性等方面要求严格，从软件可靠性测试框架、可靠性模型、故障检测技术、高可用数据库等几方面进行分析，结合避错、排错、容错技术的研究现状，在通用的三层结构模型的基础上，进一步融合设备层，提出分布式四层架构模型。以航天真空热试验测控平台为例，采用自底向上的方法，从设备控制层、高可用数据库层、负载均衡集群层到展现层分别介绍该模型在测控平台中关于提高系统可靠性的设计。