In recent years, the police department has begun to deploy communication jamming vehicles one after another in order to provide security protection or deal with emergencies. The protective barrier of wireless communication signals is used to prevent possible sudden terrorist attacks, or malicious events such as wireless communication, remote control, and drone approaching harassment. Among them, mobile phone users of unknown origin in the protection area are also one of the key protection targets, but the problem arises: the communication interference system on the vehicle already has the full-band wireless communication interference function, Of course, this includes the interference frequency band for mobile phone signals. So, is it appropriate to install a mobile phone signal control system on the communication interference vehicle?
What is "Mobile Phone Signal Control System"? This is different from the mobile phone signal jamming system installed on the communication jamming vehicle. The conventional mobile phone signal jamming system applies a high-power jamming signal on all mobile phone signal frequency bands, and suppresses all mobile phone signals within a certain range by power suppression. Cell phone signals are suppressed and interfered. The effect of this signal interference is indiscriminate and non-targeted for mobile phone users, and will not identify and distinguish specific mobile phone users. However, the mobile phone signal control system is not like this. Its working principle is somewhat similar to a mobile phone base station, and it can communicate with surrounding mobile phone users to a certain extent. Moreover, the identity codes of mobile phone users can be identified, and at the same time, the identity of these mobile phone users can be blacklisted or whitelisted. When a mobile phone user is identified as a blacklist, the mobile phone signal control system can lock it and prevent it from being used normally.
From this point of view, the functions of the mobile phone signal management and control system seem to be very suitable for the needs of some customers, but is it appropriate to install the mobile phone signal management and control system on the communication interference vehicle at the same time? Unfortunately, this application solution is not the optimal solution. The reason is that the communication jamming vehicle has already installed full-band mobile phone signal jamming modules. When these jamming modules are all turned on, they will continue to emit jamming signals. . The mobile phone signal control system is based on its own working principle. It needs to intermittently scan and receive the signals of the mobile phone base stations in the surrounding environment. In the process of receiving the base station signals, there are strong Interference signals in the mobile phone frequency band will directly prevent it from working properly.
In addition, when the mobile phone signal control system is installed on the communication jamming vehicle, even if there is no influence caused by the simultaneous operation of the mobile phone signal jamming system, there is still a problem of applicability in the use scene: when the communication jamming vehicle is driving at high speed, this set The mobile phone signal control system will not be able to enter the normal working state due to the rapid switching of the base station on the way.
