基于振动传感器的周界围栏报警监控系统设计

Study of a vibration sensor system for perimeter fence outdoor

利用一种滚珠式振动传感器,设计了一款周界围栏报警系统,一旦发生非法入侵人员攀爬围栏时,由该系统发出报警信号。针对室外大风及暴雨对传感器带来的虚警,本文依据入侵人员的振动信号具有一定的周期性,提出了一种高准确率的入侵信号检测方法,以提高报警系统的检测率。文中利用MATLAB软件对采集到的信号进行了仿真处理,同时提出了一种基于单片机的快速算法,以实时准确地完成入侵人员的检测,实验验证了该方法的有效性及稳定性。

This paper designs a perimeter fence alarm system based on ball vibration sensor. When detecting illegal invasion of the staff to climb the fence, the system will give an alarming signal. Considering the fal- sifying effects of high winds and heavy rain on the alarm system and based on vibration periodicity of human invading signal, the paper puts forward a highly accurate signal detecting method to improve detection rate of the alarm system. The paper makes use of MATLAB software to simulate the acquired signals, and pro- poses a fast algorithm based on MCU to complete real - time invasion detection accurately. The stability and efficiency of the method are verified experimentally.