掉电数据保护功能。
使用单稳态触发器74ls221对送给MC 1311 CMOS摄像机的同步信号进行整形。使用AT 24 C02对数据进行存储，实现了数据的掉电保护。
The synchronous signal of MC1311 CMOS camera is shaped by monostable trigger 74ls221. The data are stored in AT24C02, protected in the case of electricity loss.
解决了数据存贮器掉电自动保护和观测系统常见故障自动实时诊断问题；
We have solved the problem of real-time automatic diagnosis for normal failures in the observation system and the problem of the power failure protection for its data memory chips.
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