Microwave radar module induction switch, also known as microwave induction switch, is an advanced planar antenna based on Doppler effect, which can effectively suppress the interference of high harmonics and other clutter, high sensitivity, strong reliability, safe and convenient, intelligent energy saving is the first choice for intelligent building and modern property management. Micro power consumption, complete functions, can bring a variety of lamps.
Microwave radar module induction switch function and characteristics:
1. Intelligent sensing: When someone enters the detection range of this product, the microwave detector will light up, and when the person leaves the detection range, the light will automatically go out. It can automatically recognize day and night.
2. Intelligent delay: The induction switch of the microwave radar module automatically delays one cycle after detecting every activity of the human body, and the delay time of a subsequent human activity is the starting point.
3. Working mode: After the induction switch is connected, during the delay period, if there is human activity, the switch will continue to connect until people leave and delay.
4. Photosensitive control: The induction switch of microwave radar module can control whether the switch works according to the external light intensity, so as to achieve energy-saving effect.
5. Compared with infrared products: radar switch induction distance is far, wide Angle, no dead zone, can penetrate glass and sheet, according to different power through different thickness of the wall, is not affected by the environment, temperature, dust, 37 degrees induction distance will not shorten, radar switch is the ideal update product of infrared switch.
Microwave radar module induction switch Installation precautions between the radar induction lights, microwave radar module induction switch has high sensitivity, hidden installation, from the radar induction principle can be seen. Therefore, radar sensing is increasingly used in underground parking lots, stairways, wardrobes and other places. Due to its high sensitivity, improper installation will lead to normal operation.
Microwave radar induction LED products, drive circuit active transmission frequency of 5.8GHz microwave signal, when the external moving object, according to the Doppler effect (wave source close to the observer receiving frequency is high, wave source away from the observer receiving frequency is low), the signal feedback to the transmitter, trigger the lamp change state, from light to full light.
When multiple induction switches of microwave radar modules are installed together, if the lights are too close, the radar signals sent by light A may be received by light B. As A result, the feedback signals received by light B are not their own feedback signals, but the transmitted signals of light A. Signal interference forms are superimposed or reduced each other, resulting in mutual interference of radar induction products.
The interference between induction switches of microwave radar modules
1, in the steady state, can not play the role of the corresponding induction lamp. This is because interdependence is too close to extinguish.
2, deal with normally dark state, this is because can not trigger start. The induction distance is short.
So, when installing multiple microwave radar module induction switches, how much spacing between lamps is appropriate?
After several practice tests, the interval between the two lights is kept at more than 1.8 meters, basically without interference.
If you want to further save energy, you can choose smart lights, but there are two points to pay attention to when using smart lights in underground garages.
1, do not choose induction "switch" light, choose induction "dimming" light. Normal operation 11W, low power 2W. Ensure that the audience has some basic safety lighting during low power operation.
2. The induction range of the microwave radar module induction switch tube should be large, and the sensitivity should be selected as high as possible. Otherwise, it would be unrealistic to light up when the car reaches the light.
