Stability of security gate

　　 The stability of the security door is very important, is the first condition for customers to buy security door. The instability of the security gate will cause random alarm and omission, which will make the staff at a loss, and the security gate has not played a real role. Since the sensor of the security door (I. e., both side plates of the door body) is open to the outside, it can transmit electromagnetic waves to the external environment and also receive electromagnetic waves generated by the external environment. External environmental equipment, such as high-voltage wires, large motors, welding machines, furnaces, walkie-talkies, etc., will produce a large number of electromagnetic waves, radiating fusion electromagnetic fields, and interfering with the normal detection of security doors. Therefore, all security doors will be more or less affected by external environmental interference. The factory has the technical force, can solve the stability of the security door itself, and can deal with external interference, so that the interference of the security door is reduced.

　　 Usually the security door is designed with a real-time control signal strength indicator, which can display the size of different metal objects and the strength of the interference signal. The real-time signal indicator plays a very important role in initial installation and use. During the initial installation and use management process, the appropriate detection technical parameters of the security inspection door can be adjusted in time according to the signal light indication to minimize the interference caused by the external environment, thereby improving the detection accuracy of the security inspection door. Some manufacturers cancel the signal light in order to hide people's eyes and ears, or turn it off when no one passes, so that users can think that the security gate is working normally. Little imagine, at this time the security gate has developed in a state of social instability, whether you need to carry metal will call the police. The security door with a signal strength indicator can adjust its working parameters according to the interference intensity during installation, thereby eliminating the influence of external interference on the security door and ensuring its normal operation. The security door has an environmental self-check function, which can effectively achieve anti-interference and eliminate noise.

　　 Choose to test under the same social living environment (including the power supply of the management system, the competitive environment of the external world market and the actual situation of electromagnetic interference with the same enterprise development): power on the machine, block the infrared counter-radiation device, and remove the function that infrared technology can limit the alarm. Set the alarm sensitivity analysis to a more sensitive (higher) level, and let the safety door wait for the safety alarm. At this time, students observe the number of flashing signal lights. If the number of flashing signals is large, random alarms will even be generated. You can avoid external interference by changing the working frequency of the safety door until the signal light is on to a low level. If you change a management work can use different frequencies, the security door work personnel still have very unstable factors or even random alarm, indicating that the security door itself has poor stability and anti-interference ability.