Before the exam started yesterday morning, the exam center of Tsinghua University was crowded with graduate students. Many cafeterias and hotels on campus are open to candidates. The second floor of the comprehensive gymnasium is also open for lunch break. When the candidates enter the examination room, they must check the candidates one by one through the ID card identification equipment and other equipment to verify the candidates' identity information. Candidates with questions about their identities and admission tickets will also be photographed. According to the introduction of Tsinghua University, each examination room and examination duty room are uniformly equipped with monitoring equipment by the Ministry of Education. During the examination, the standardized video surveillance system of the examination room will record the whole process of each examination room; each examination room makes full use of Cell Phone Blcoker Commercial , ID card identification equipment, cell phone jammer and other equipment to prevent and block illegal acts such as high-tech cheating and examination cheating.
Has good anti-reduction properties and good correlation. It prevents radiating information signals and interfering signals. The unique signal filling technology covers a wide range of seamless interference at 10kHz and 2GHz; the filter design to suppress radiation conduction adopts a high-efficiency power design, which transmits information twice and plays the role of enhancing and encrypting spatial random numbers. Recovery is not possible. Can be used alone or easy to install. Small size, electromagnetic compatibility, can be used in the network. Partial protection is just standalone mode, the network can protect the entire area.
