Comparison and analysis of LED lighting solutions for three underground parking lots (two)

The characteristics of the human body induction scheme is a detection of human pyroelectric infrared, infrared lens using the Finel collection of human energy, an obese person, more from the infrared energy, conversely, infrared energy less, so a small man, sensitivity of obese and thin people feel different, general induction distance 2-4 meters, but also suitable for the occasion. Pyroelectric infrared sensor is the detection of infrared radiation, the body's temperature is generally 37.5 degrees, while the temperature near the LED fluorescent lamp is about 40-45 degrees, so the temperature and light interference by the sun is relatively large. In order to solve this problem, a kind of light insulation and thermal insulation lamp holder is developed, which can effectively solve the problem of interference of light and heat. It is generally recommended that the human body is more suitable for the application of fluorescent light in the corridor, if applied to the parking lot, you need to carefully identify the surrounding environment and human relations. For the first time, the CPU requires a reset period, and the second start is accurate.

Intelligent radar sensing scheme

1 using Doppler principle, independent research and development of radar transmitter and receiver circuit, intelligent detection of the surrounding environment, automatically adjust the working state;

2 ultra low lighting power consumption at rest, usually 2-2.5W, and adjustable according to the environment;

3 when the object into the radar area, automatic induction of full load operation, 10-18W (0.6 or 1.2 meters lamps)

4 full load working time: 2 seconds -60 seconds adjustable according to the environment;

5 induction sensitivity: 3-5 m;

6 day average power consumption: 4.8 watts; (by working for 8 hours, still at 16 hours, full load 10W)

7 suitable for underground parking, shopping malls, staircases and other lighting places.

8 wide voltage input, suitable for global use.

Intelligent radar sensing scheme is based on the Doppler principle, transmitting microwave radar signal about 5.8GHz, when moving objects into the radar electromagnetic field, can feedback signals to the receiving circuit, triggering circuit to change the working state of. General induction distance can reach 5--9 meters, as long as the object can be moved. Although the object is in the range of the trigger, it will not be triggered if it is not moved. Radar penetration can penetrate non-metallic objects, such as gypsum board, wood, etc., especially suitable for concealed installation. Special attention should be paid to the fact that if a metal object blocks the emission surface, it will greatly reduce its sensitivity. The influence of radar induced interference is relatively small, and the sensitivity is relatively high, especially suitable for underground parking lighting solutions.