Design Of Dormitory Security Systemin Hohhot Business And Tourism Vocational School

With the continuous support of the state for the development of secondary vocational education,the enrollment scale of secondary vocational schools is expanding year by year.Hohhot Business and Tourism Vocational School as a national key secondary vocational school,enrollment scale is also increasing,the number of students living in school is rising year by year,school students safety management work is facing great pressure,the existing traditional dormitory security facilities need to be improved urgently.In this paper,by using ZigBee wireless networking technology,a dormitory security system for Hohhot Business and Tourism Vocational School is provided,which realizes real-time monitoring of dormitory fire,theft and danger,and real-time monitoring of dormitory security environment through computer terminal interface.The hardware design of the system mainly includes wireless transceiver module based on CC2530,MQ-2 smoke sensor,SD02 pyroelectric infrared sensor and SOS emergency button circuit.The software design of the system is mainly realized by ZigBee protocol stack,software IAR,Visual Studio 2005 and other technologies and software.The system places infrared sensor,smoke sensor and SOS emergency button circuit in the corresponding detection area of dormitory to collect information about suspicious personnel invasion,smoke and combustible gas concentration and SOS help button circuit.The signals collected by sensors and help button circuits are first transmitted to the terminal node CC2530 wireless transceiver module,and then forwarded to the router through CC2530 wireless transceiver module.The router sends the signals to the coordinator.Finally,the coordinator transmits the signals to the monitoring host PC through the serial port,and displays the monitored signals inthe interface.When the signal is abnormal,the alarm will be issued to realize the real-time monitoring and management of the fire,theft and danger in student dormitories.The dormitory security system has been tested,the network performance is stable,and the expected design function has been realized.The system has the advantages of low power consumption,high security,flexible network expansion and easy operation of the interface.It is more suitable for the actual needs of the current dormitory security work in Hohhot Business and Tourism Vocational School,but the system needs to be improved in data sharing.