"基于51单片机的无线报警器设计与实现"

该文介绍了基于51系列单片机的无线报警器的设计和实现。该系统由无线发射模块和单片机监控下的无线接收报警模块组成。发射模块通过四个按键控制数据信息的发送，并通过编码芯片PT2262对信息进行编码后，经过发射头将信息发送出去。接收模块接收到信息后，将其送给解码芯片PT2272进行解码，并将解码信息传送给单片机AT89C51，最后引起警铃报警。 除了报警功能，该系统还添加了设防功能和撤防功能，以应对断电时无线报警失灵的情况。在设计中，详细分析了上述实现原理，并给出了主要程序局部。通过测试，证明了系统具有较强的实用价值。 关键词：51系列单片机、PT2262、PT2272、设防、撤防。 Abstract: This paper introduces the design and implementation of a wireless alarm based on the 51 series single chip. The system consists of a wireless transmission module and a wireless receiving alarm module under the control of a single chip. The transmission module sends data information through four buttons, encodes the information using the PT2262 encoding chip, and then sends it out through the transmission head. The receiving module receives the information, sends it to the decoding chip PT2272 for decoding, and then transmits the decoded information to the single chip AT89C51, finally causing the alarm bell to sound. In addition to the alarm function, this system also adds the arming and disarming functions to cope with the situation where the wireless alarm fails during a power outage. In the design, the implementation principle is analyzed in detail and the main program sections are provided. Through testing, it has been proven that the system has strong practical value. Keywords: 51 series single chip, PT2262, PT2272, arming, disarming.