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2025-05-15 06:34 本頁(yè)面
【正文】 uter temperature critical temperature, issued a warning signal, caused by temperature to prevent unnecessary losses. The modern society is the information society, as secure degree of increasing, room as modern hub, its work safety has bee a top priority, the tele room once breaks down, will cause the entire system paralyze, caused great damage very social influence. A: high temperature fire caused by electrical wiring short circuit, overload, contact resistance too high temperature or triggered fires。 Electrostatic generation high temperature or fire。 Lightning invasion as lead to high temperatures or fire amp。high。 Most major is the tele room puters, airconditioners etc electrical equipment working for a long time, resulting in equipment aging, air conditioning, and cannot cooling fault。 Therefore the tele room belongs to electronic products fever faster, in a short time, room temperature beyond normal temperature, cause the system equipment or produce fire, then paralyzed temperature alarm system will play its function. This paper is to use temperature sensor DS18B20 temperature alarm, automatic measuring current environmental temperature by a single chip microputer AT89C2051 control, and through three seven segment digital pipe display, if the current environmental temperature over this temp
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