As a representative of national social security and fairness and justice, the administrative system of the Department of Public Security and Law includes many scenes such as smart prisons, drug rehabilitation centers, case handling centers, courts, procuratorates, etc., involving a large number of people, it is urgent to use indoor positioning technology to improve the level of information intelligence.

Personnel positioning, positioning technology applied in prisons, can support all-weather roll call; Position management and trajectory analysis of dangerous prisoners; The anti-demolition positioning bracelet can monitor the vital signs of detainees in real time; At the same time, it has the function of electronic fence and video linkage, and the forbidden border is arranged in the key entrance and exit and the perimeter, and the illegal entry is the active alarm, which reduces the risk of supervision and law enforcement, makes the supervision and management work intelligent, improves the three-dimensional prevention and control ability, and quickly responds to emergencies. In addition, it can wear positioning tags for prison guards, and avoid unguarded irregularities in the process of prisoners' arraignment meetings.

Vehicle management, the positioning of foreign personnel and vehicles, etc., to solve the problem that visitors or vehicles can not enter the prohibited area quickly and effectively, and the historical track can not be traced.

Indoor positioning technology mainly plays the role of personnel supervision in the Public security and law Department system, solving the difficulties of tight police, large work pressure and unable to global monitoring, positioning accuracy requirements are not high, and positioning terminals are required to be portable and low power consumption.