Nowadays, cell phone addiction is widespread. Some children have poor self-control. Installing a signal blocker can prevent children from playing with cell phones in the classroom. At the same time, it also prevents students from ordering take-away programs on television. Cell phones are more like parents. comfortable. "The classroom has a bluetooth jamming cell phone. Another student named Wang questioned the installation of the sign. Even though the children took their cell phones to school, they still knew we trusted him very much," Wang said : "Although it" is the contact information of a teacher, he still hopes to have direct contact with the children.
The GPS interference can interfere with phone signal interference and counterfeit base stations without interference. The problem is that it disables emergency calls. In theory, you can implement some functionality by placing the phone in a place where calls are not allowed (since the operator always knows where the phone is), which will put the phone in "mode". But no one recommends it as a product or a standard, although it is not particularly difficult. Maybe it's because the owner of the cinema, the owner of the restaurant, has to pay.
Jammu and Kashmir, India's northernmost state, is installing 800 drone jammer in test centers across the country to fight fraud. A new pending case reveals this problem: Wasim Ahmed, a student at Nawab Shah College of Engineering in India, has been charged with fraud. He puts the smartphone in his underwear, the microphone in his shirt and the bluetooth headset in his ears. he asked the waiter in a low voice. Behaviors like Ahmed are common around the world, but the details can vary.
Earlier this month, four students cheated on entrance exams and a scandal broke out at Reims University Medical School in Thailand. Two of them wore glasses with built-in cameras and three of them wore smartwatches. Glasses for taking photos for exams. During the break, the candidate presented the glasses to the person holding the photo and then sent the photo to allies in the designated "command center" elsewhere. Colleagues studied these questions and sent the answers back to the candidates, who can see the SMS on the smartwatch. The good news is that they were captured. The problem of connected device fraud on the internet is very serious. Iraq actually uses wifi jammer. Shut down most of the country's internet to prevent sixth grade students from cheating.