基于RFM的机载余度计算机软件快速测试平台

A Rapid Testing Platform of Redundant Computer Software

摘要:

为了提升飞控计算机的可靠性,目前普遍采用余度技术构建余度飞控计算机,该计算机由多个通道构成,每个通道有一个CPU,互相构成备份；但是,由于各个通道的机载软件之间相互同步、通信和交叉监控,必须并行调试和测试,这就造成了机载软件调试和测试的滞后,必须等待真实的飞控计算机开发出来之后才能开展工作；文章提出了一种基于RFM(反射内存)的余度计算机快速原型测试平台设计方法；该平台使用商用货架产品构成余度计算机的多个冗余通道,使用RFM模拟多通道间的通信、同步过程,通过对底层驱动封装实现硬件故障模拟和余度功能模拟,方便实现软件调试和从性能、功能测试,大大提高了开发效率,减少了研制周期。

Abstract:

Aimed at the difficulties in associated debugging and long testing period and complex conditions in the simulation and testing of the redundant computer software, a kind of rapid prototype test platform based on RFM is proposed. The platform simulates the communication process between multi-channels by the RFM(Reflective Memory). The hardware fault simulation and the redundancy functional module fault simulation are implemented by encapsulating the underlying drivers and redundancy function modules. Under the platform, the redundant software could be tested from both performance and functionality in developing process.