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Design of wireless burglar alarm based on MCU
Guang-li LONG
Department of Information Engineering
Shaanxi University of Tecnology
Hanzhong,China
lgl20088@163.com
Abstract—For to steals, robs and so on accidents to carry on the
effective monitor and the warning, unified using the MCU
Launch
AT89C51 controlling technology and the infrared detection Receive
module
technology, one kind of wireless burglar alarm has been module
designed, it including hardware and software two parts; The
hardware part is composed by the infrared sensor, send and Infrared
MCU
receive module ,MCU, acousto-optic warning and so on; The sensor
software part is composed of the main program and music
subroutine. With C or the assembly language compilation source
program, carries on the translation and the debugging in the Acousto-optic
Keilc51 platform, after downloads to the MCU AT89C51 chip, warning
and this MCU and other primary devices welding on the PCB
board according to designa circuit. On electricity, closed-cycle Figure 1 The wireless burglar alarm
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