The signals of head-up display is collected and tran sformed online by hardware circuit in this paper.In view of uncertain characteri st ic of the signals of head-up display,a new method of error diagnose is advanced by fuzzy theory,it has definite reference vulue.%给出了平显信号在线采集、转换的硬件电路。鉴于平显输出信号不确定的特点,提出了应用模糊理论进行故障诊断的新方法,此法具有一定的参考价值。
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