Aiming at the characters of wireless sensor network and intelligent home alarming system, this article studied a sort of intelligent home alarming system based on wireless sensor network. Through establishing the structure frame of alarming system, in this article, we designed the sensor nodes of alarming system, put forward the hardware design methods of sensor nodes for the alarming system, designed the software of alarming system through the combination of software and hardware, adopted the license technology to enhance the security and veracity of the transmission of alarming information. The experiment indicated that the system had certain practical value because of its convenient operation and reliable stability.
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