Design And Implementation Of ARM-based Anti-theft Positioning System For Luggage

Ensuring information security has always been an important part of the national security strategy.Whether it is the country’s political strategy,military secrets or the development of enterprises and technological breakthroughs,are the target of stealing by hostile forces at home and abroad and illegal organizations.Therefore,how to ensure the security of information has become a major issue for governments,troops,and enterprises to urgently solve.Based on a variety of modern technologies such as wireless communication,positioning,and data encryption,this paper designs an anti-theft positioning system for carrying cases,which provides a guarantee for information security during the transportation of confidential items.The system is mainly composed of a controlled terminal and a hand-held monitor.The controlled terminal is used as the bearer of the secret items.It is mainly used to monitor the status of the cabinet and send positioning,alarm and other information to the monitoring center in real time through remote wireless communication technology.The hand-held monitor is provided by the deliverer and is mainly used to monitor and control the controlled terminal.The system development adopts a modular design concept,and the system is roughly divided into four main functional modules for business functions: remote communication module,positioning module,alarm module and short-range communication module.Coordinate the work of other modules through the main control module to achieve the collection,processing and transmission of information.The system uses the SM4 password algorithm to encrypt the data transmitted remotely to ensure the security of the information,and uses the least square method to optimize the environmental parameters to improve the ranging accuracy.This paper mainly completes the design of the entire system,including system frame design,hardware circuit design,and embedded program design.Through the functional test and performance analysis of the entire system,it is concluded that the system designed in this paper has high reliability and stability,and meets the functions required for the anti-theft positioning of the carrying case.