Study Of A Vibration Sensor System For Perimeter Fence Outdoor

With the rapid development of society, the quality of life has been constantly improvedand the awareness of security has also been enhanced. As an important means of securityprotection-perimeter intruder location detecting technology, which has decades of history.With advances in technology, electronic security systems (alarm system and closed monitorsystem) have been more widely used in some important areas now, such as airports, museums,oil depots, prisons, military bases, and played an important role in maintaining social security.This paper designs a kind of perimeter fence alarm system based on ball vibration sensor.First, place the vibration sensor above the fence horizontally. When the fences are shaking,the metal ball of vibration sensor deviate from the equilibrium position. This will convertephysical shake to electrical signal. When the preventive area is small, you can use themicrocontroller for processing, but when the preventive area is large, need to collect lots ofsignals, so we use DSP as the core processor to analysis and process the signals.Secondly, onthe basis of the instant communication and the master-slave communication, we design theRS-422ring communication, to improve the transmission rate and the accuracy of the signals.Finally, the system can monitor any area and any rang of the entire perimeter with thecombination of hardware and software, to improve the dynamic control and mangement of theperimeter.