Power-off protection microcomputer cluster auto-shutdown system
An automatic shutdown and microcomputer technology, applied in the direction of data processing power supply, etc., can solve problems such as failure to operate normally, missing software, hardware damage, etc., to achieve the effect of safely and quickly shutting down the microcomputer cluster, ensuring normal shutdown, and improving shutdown speed
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[0020] The system of the present invention is described in detail below according to the accompanying drawings.
[0021] Use a data cable to connect the data cable interface of the air conditioner power supply monitor and the COM port of the parallel program microcomputer, and then connect the power supply of its own power interface to supply power to the entire circuit board. Lights up, indicating that the power failure protection microcomputer cluster automatic shutdown system is working normally, and the detection power interface starts to detect the air conditioner power connected to it. The detection power interface only handles the voltage difference from high level to low level, and does not process other changes, that is to say, it only handles power failure. When the detection power interface detects a voltage difference from high level to low level, it will send the voltage difference to the ATMEGA16L MCU, and the ATMEGA16L MCU will send a "poweroff" signal after rec...
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