At Chengdu University of Science and Technology, classrooms in the new building are equipped with “mobile cell phone jammer“, which are a good way to prevent students from using mobile phones in the classroom. Does the school really want to block students’ cell phone signals? In the school, it was discovered that in an empty classroom in the second teaching building, there was a seemingly “black” technological instrument on the wall closer to the blackboard. There was also an automatic switch on the instrument. Some netizens revealed that the GSM jammer said. In this empty classroom, the power cord was not connected to the mobile phone signal jammer, and the switch was not turned on. Therefore, the reporter’s mobile phone signal is normal and the network can be used normally. The reporter also found that the second teaching building has several floors, all of which are school classrooms and empty classrooms. There is no problem with the mobile phone signal. You can receive information, make calls, and access the Internet. “This is the structure of the standardized test site.” The person in charge of Chengdu University of Technology said that the new teaching building is installing mobile phone signal shielding devices in accordance with the requirements of the standardized test room and is in progress. Only the new teaching building is being installed here, and all the installation work has not been completed. fully. He also stated that the shield will be opened under the unified requirements of the four or six examinations to be held in December.
In recent years, terrorist attacks have occurred frequently, causing great harm to the people. Today, the issue of counter-terrorism is widely discussed, and it is one of the issues that people need to be alert to. We have discovered that bombing is an important means of terrorist attacks. As a cruel and universal means of terrorists, it has caused tremendous damage. Therefore, an important aspect of the war against terrorism is to prevent bomb devices of different types, sizes, and powers.
There are many kinds of bombs. Fortunately, the government also has a dedicated bomb disposal unit to deal with these various bombs. However, the most difficult terrorist attack is not to be able to take the bomb apart, but to find and stop the bombing attack. Can you imagine when you are in the square, is there a sudden explosion in the cinema? It’s too late to stop. As far as prevention methods are concerned, you know that most terrorist attacks are triggered by a simple phone call. At that time, if there is a suitable signal jamming device near the place where the bomb is installed, you can be sure that nothing happens because the signal is not transmitted. This cell phone jammer is used by military and law enforcement agencies.