Abstract
In the current society, a lot of coal gas alarms have appeared, and these products are mostly to letting out corresponding alarms made of coal gas , it is family. But with the development of society, coal gas alarm develop too, family by a single one too, develop into the district to control. This text studies how to let out and control the coal gas of a district, and has designed a coal gas warning system of controlling
four units.
Coal gas warning system adopt 8 8051 one-chip computer CPU of system, four coal gas density corresponding analog quantity of unit utilize A/D person who changes figure into, and has joined key in. The hardware circuit of the whole system is reasonable in design, performance is safe and reliable.
What the software of this system is written and adopted is an assembler language , the train of thought of the whole procedure is clear, it is overall to consider. Can revise the warning critical value , has increased the region and field to use in beginning and course of carrying out ; Can point out which unit coal gas let out and send out the music while reporting to the police, have strengthened humanization.
Keyword The electric potential device sampl
