Because the underground garage is a long-time lighting, the life of the lamp will be shorter than that of the ordinary lamp. Moreover, since no one is used at night, the lighting is wasted, and the constant lighting is not conducive to energy saving.
Therefore, the lighting of the underground garage needs to be intelligent, the car lights are bright, and the car lights are slightly bright, and the best intelligent lighting solution at present is the microwave sensor LED Tri-Proof Light Luminaires. Before the advent of the microwave sensor LED Tri-Proof Light Luminaires, the underground garage is generally a LED Tri-Proof Light Luminaires or an infrared-sensing Tri Proof LED Light Luminaires. Both have certain flaws.
First of all, the voice-activated LED Tri-Proof Light Luminaires detects the sound of the surrounding environment through the microphone, and amplifies it, and the subsequent circuit works by detecting the trigger signal. Affected by environmental noise. The sensing distance is related to the sound emitted by the object. When the surrounding environment is very noisy, it may always be lit. When it is too quiet, it may not be triggered. It is affected by environment, temperature and dust. The microphone needs to be exposed. Since the sensitivity of the voice-activated sensor is greatly affected by the environment, it is not suitable for use in the parking lot and can be used for aisle lighting.
Secondly, the human body senses LED Tri-Proof Light Luminaires, the human body has a constant body temperature, generally at 37 degrees, so it will emit infrared rays with a specific wavelength of about 10um. The passive infrared probe is to detect the human body to emit infrared rays to work. The infrared rays are reinforced by the Philippine filter and collected on the infrared sensor. The infrared sensing source usually adopts a pyroelectric element, which loses the charge balance when receiving the temperature change of the infrared radiation of the human body, and discharges the charge outward, and the subsequent circuit can trigger the switching action after being detected and processed. The sensing distance is generally small, the angle is relatively small, and it is greatly affected by the environment, temperature, dust, etc. At 37 degrees, the sensing distance is shortened. It is inconvenient to install the infrared sensor head. Infrared sensing of the human body is not suitable for use in parking lots due to insufficient sensitivity of the reaction, and can be used in aisle lighting.
The microwave sensor LED Tri-Proof Light Luminaires overcomes the defects of the above two. The principle of the microwave sensor Tri Proof LED Light Luminaires is to emit electromagnetic waves through the planar antenna. When a moving object enters the electromagnetic wave environment, the waveform reflection is folded back, and the planar antenna receives When the waveform is fed back, the subsequent circuit operates by detecting the trigger signal. The sensing distance is farther, the angle is wide, there is no dead zone, and it can penetrate glass and thin wood board, and is not affected by environment, temperature, dust, etc. At 37 degrees, the sensing distance will not be shortened.