What is an infrared sensor light? This is a new generation of lighting fixtures. We will see some entrances, walkways or booths. When someone walks or approaches, the lighting fixtures will turn on for a while. After that, the lighting will turn off again. This is the application of infrared sensor lights.
The disadvantages of infrared sensor lamps are:
1. It is easily interfered by various heat source sources.
2. When the ambient temperature is close to the human body temperature, the detection and sensitivity will drop significantly, and sometimes even a short-term failure will occur.
3. The sensing effect will also be interfered by RF radiation.
4. Passive infrared penetrating power is relatively poor. When the infrared radiation of the human body is blocked by other objects, it is not easily accepted by the probe, and sometimes it cannot be induced.
The principle of infrared sensor light
When someone enters the sensing range, part of the human body is in the infrared region of the infrared first human body sensor, and the infrared emitting tube emits infrared rays. The reflected signal reflected by the human body is reflected to the infrared light, and the signal processed by the microcomputer in the integrated circuit is processed. Sended to the pulse solenoid valve, the solenoid valve receives the signal and opens the valve core according to the specified command to control the head water. When the human body leaves the infrared sensing range, the solenoid valve does not receive the signal, and the solenoid valve spool is reset by the internal spring to control the valve. water.
As long as the human body does not leave the sensing area, the switch will continue to be turned on, and after the person leaves, the delay will automatically turn off the load. When people turn on the lights, people turn off the lights, which is quite human and energy-saving.
Advantages and disadvantages of infrared sensor lamps
The advantage of the infrared sensor lamp is obvious. As long as the person is in the sensing area, the switch can be kept on continuously. Once the person leaves, the time will be turned off, the function is quite human, and it is safe and energy-saving.
It is also different from voice control or other sensor lights, does not require sound to avoid the trouble of voice control noise, and because it is a switch that senses the body heat, thus avoiding the loss of invalid power.
And the probe of the infrared sensor lamp itself does not emit any type of radiation, and there is no problem of radiation.