As of 2021, there were four high risk areas and more than 110 medium risk areas. 

     In order to win the new round of the epidemic, provinces and cities have to strengthen the prevention and control of the new type of pneumonia, temperature, test "two yards" and so on have been put on the agenda. 

      Among them, "two yards" believe that many people are familiar with, one is the health code, the other is the access code, the combination of the two yards can clearly understand whether the parties have been to high-risk areas, the possibility of infection, and so on. 

     But if the scan is not done when the protection, the process also has the possibility of infection with a new type of coronary pneumonia, to understand the mutation of the virus is more than 1,000 times the spread of the virus early last year. To this end, many places are also trying to avoid or reduce the risk, including the use of advanced drones. On Aug. 3, Weibo users with the name "Beijingers defending Beijing city" posted a short video showing a drone flying slowly at a low speed near the entrance to Yancheng's south highway, with a large travel qr code attached to the drone, for the crew to scan. When it comes to uavs, they play a pivotal role in epidemic prevention and control, being used to disseminate knowledge of epidemic prevention and deliver epidemic prevention materials. As one of the most revolutionary black technology products of the 21st century, unmanned aerial vehicles (uavs) generally consist of a load-bearing platform, flight control system, power system, control equipment, Aerial Photo stabilizer, etc. , the flight control system mainly includes three parts: sensors, on-board computer and Servo action equipment. The functions of the flight control system include attitude stabilization and control, task equipment management and emergency control, the servo action equipment, which has been widely used in swing-type voice coil motor. 

       Voice Coil Motor is one of the main products of Tongmao Electronics Co. , Ltd. in Kunshan. It is divided into cylindrical voice coil motor, rectangular voice coil motor, swing voice coil motor, flat voice coil motor and shaft voice coil motor. 

        The article was originally written by www.tmmotion.com in Kunshan, China. Please quote the source.