Design Of Prison Comprehensive Perimeter Control System

Prison security is an important part of national security.The normal operation of prison directly affects the stability and development of the country.Therefore,the safety of prisons has become a top priority in prison work.However,in recent years,with the increasing number of prison detainees,prisons have repeatedly suffered from jailbreaks and other vicious incidents,which have had a major impact on society.Therefore,prisons urgently need an intelligent perimeter power grid control system to improve the security capabilities.The system consists of two parts:the upper computer and the lower computer.The upper computer controls the lower computer through the wired network and stores the information of the lower computer in the upper computer database and displays on the interface.The lower computer is a controller with detection and linkage alarm function.There are mainly functions such as detecting,collecting and processing high-voltage power grid information,displaying grid and alarm information,mode settings,receiving upper computer commands,and handling alarms.Key technologies involved in the system include Database design,Linux application programming,and Linux driver programming.The upper computer adopts QT programming.The main function is to control the lower computer,store and display all kinds of data transmitted by the lower computer(such as host parameters,real-time recording,history and alarms)through commands(such as query,control,recording time and timing,setting parameters and integrating multiple instructions)).The lower computer uses the ARM Cortex-A8 as the processor of the system and is equipped with the Linux operating system.Mainly by main control module,solid state relay module,rectification and filtering voltage dividing module,analog multiplexer module,RS-232C and RS-485 communication module,network module,button module,LED light module,buzzer module and detector module.,relay module,and power module.Firstly,the main control module controls the on/off of the transformer by controlling the solid state relay module,and then controls the rectification and filtering voltage dividing module and the analog multiplexer module to collect the data of the high voltage grid,and then passes through the RS-232C and RS-485 communication modules on the display after processing.Displayed on.Finally,the collected and processed data is transmitted to the upper computer through the network module.The button module can set the working mode of the lower computer.The LED light module displays the working status and mode of the lower computer.When an abnormal situation occurs,the buzzer module is combined with a module such as a detector module and a relay to alarm.After testing,the system data acquisition module,display module,network communication module and linkage module all work normally,and the designed prison comprehensive perimeter control system has achieved the expected requirements.