With the rapid development of mobile communication technology, mobile phone has increasingly become an indispensable communication tool in people's work and life. In a specific area and environment, using signal jammer to realize the intelligent management and control of mobile phone communication is undoubtedly an important means to solve the security problem of information confidentiality and eliminate the local interference of public social order. Modern means of communication have created comfortable, fast and accurate comprehensive services for us, but also brought increasing environmental pressure, life and learning problems and hidden dangers of information security.

Prisons are places where prisoners are held, and most of the detainees are criminal criminals. Strengthening security measures is the primary task of improving the level of prison management. The signal jammer is specially designed for prisons and large places. It can completely exclude the possibility that prisoners use mobile phones to communicate.

At present, the use of mobile phones by prison prisoners is relatively common. Some prisoners use illegally smuggled mobile phones to make phone calls, send text messages, surf the Internet, receive information, threaten witnesses, and even establish gangs and organize prison escape. In recent years, many prison escapes are related to mobile phones, so it is necessary to use signal jammers in prisons. In order to meet the requirements of safety management under the new situation, it is very important to improve the scientific and technological prevention awareness of the prison, improve the scientific management of the prison, promote the establishment of digital prison, and promote a series of truly scientific and more rigorous, a stable, advanced and Practical Signal Jammer equipment.