This article proposes a double-channel sequential probability ratio test (DCSPRT) failure detection algorithm for improving the fault-tolerant ability of the multisensor system. It develops a horizon-based sequential probability ratio test (HSPRT) using the horizon technique for the detection of slowing-growing failures and a current sample-based probability ratio test (CSPRT) for the detection of abrupt failures. Subsequently, the DCSPRT is established by combining HSPRT with CSPRT for the detection of both slow-growing and abrupt failures. Simulation and experimental results together with comparison analysis demonstrate that the proposed DCSPRT can effectively detect both slow-growing failures and abrupt failures to improve the capability of failure tolerance for multisensor integrated systems.

中文翻译：

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多传感器集成系统中故障检测的双通道顺序概率比测试


本文提出了一种双通道顺序概率比测试（DCSPRT）故障检测算法，以提高多传感器系统的容错能力。它开发了一种基于水平的顺序概率比测试（HSPRT），使用水平技术来检测缓慢增长的故障，并开发了一种基于当前样本的概率比测试（CSPRT）来检测突然的故障。随后，通过将 HSPRT 与 CSPRT 相结合来建立 DCSPRT，用于检测缓慢增长和突然故障。仿真和实验结果以及比较分析表明，所提出的DCSPRT可以有效地检测缓慢增长的故障和突发故障，以提高多传感器集成系统的容错能力。