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[Software Engineering] fier DL : 0: 火灾报警电路是利用两个温度传感器输出的差值来判断室内是否有火灾，然后运用的是一个差分放大电路，根据实际需要，我们可以适当的改变放大的倍数，这样可以避免温漂使设计的产品更有实用性。接着使用的是一个单限电压比较器，这样可以选择性的让危险电压值通过，最后实现报警。在报警的时候，首先会运用一个发光二极管，在电压达到一定值的时候，发光二极管就会伴同蜂鸣器一起工作，一边发光一边有声音，达到报警的作用。-Fire alarm circuit is the use of the difference between the two temperature sensor output to determine whether the fire room, and then use a differential amplifier circuit, according to actual needs, we can change the magnification of appropriate multiples, so avoid the drift to the design products more practical. Then using a single-limit voltage comparator, this can be selective so dangerous voltage values, and finally an alarm. In the alarm, the first will use a light-emitting diode, the voltage reaches a certain value when the LED will be accompanied by a buzzer to work together, side light side of a voice, to the role of police.
Date : 2026-01-02 Size : 38kb User : kevin
[Software Engineering] 01-(3) DL : 0: 基于单片机8031的太阳能交通警示牌的设计，以太阳能为能源, 给蓄电池加上充、放电保护装置, 防止过充电和过放电。该警示板设置在夜间有事故隐患的路段, 以太阳能光伏板为传感器的光控电路, 控制LED 在白天关闭、夜间开启。-This design takes the solar energy as the energy, adds on the electric discharge protective device sufficiently to the accumulator cell, prevents the surcharge and the electric discharge. This police shows the board to establish has the accident hidden danger road section in at night, by photovoltaic board the sensor light controls the electric circuit, controls LED to close, at night, in the daytime to open
Date : 2026-01-02 Size : 344kb User : 杨玮