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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。
As the aerospace measurement and control system has strict requirements on software reliability, usability and maintainability, it analyzes the aspects of software reliability test framework, reliability model, fault detection technology and high availability database. Combining error avoidance, Fault-tolerant technology research status, based on the common three-tier structure model, further integration of equipment layer, proposed a distributed four-tier architecture model. Take the test platform of aerospace vacuum thermal test as an example, this paper introduces the design of the model in the measurement and control platform to improve the system reliability from the control layer, high availability database layer and load balancing cluster layer to the presentation layer.