Wind light LED street lamp is a highly intelligent and unattended road lighting, the use of wind power, Sensor Bags Light solar power, with battery energy storage, Sensor Bags Light so the automatic management of energy is very important. Photosensor is an ideal electronic sensor that can control the automatic switching of the circuit due to changes in illuminance due to dawn, dark (sunrise, sunset).
Light sensor, according to the weather, time and area of automatic control of shopping malls LED lighting lights open and close. In the bright day by reducing its output power to reduce power consumption, compared with the use of fluorescent lamps, shop area of 200m2 convenience store can reduce the maximum power consumption of 53%. Life is also up to about 5 - 10 million hours. Sensor Bags Light Under normal circumstances, LED lighting life of 40,000 hours or so; luminous colors can also be used RGB colorful way to change the color of the shopping malls more colorful, Sensor Bags Light more active atmosphere; and supporting the use of phosphor phosphor blue Ratio, supporting the use of red, green, blue three-color phosphor purple color rendering higher.
Infrared sensor is to detect the human body to launch the infrared and work. Sensor Bags Light The main principle is that the infrared rays emitted by the human body about 10um are enhanced by the Fresnel filter lens * to the pyroelectric element PIR, and the emission position of the infrared radiation changes when the human activity occurs, and the component will lose the charge balance (PIR) converts the infrared radiation energy through the Fresnel filter lens into electrical signals, ie, thermoelectric conversion. In the passive infrared detector detection area without human movement, the infrared sensor sensed only the background temperature, Sensor Bags Light when the human body into the detection area, through the Fresnel lens, pyroelectric infrared sensor sensor is the human body temperature and Background temperature difference, Sensor Bags Light the signal is collected and the system already exists in the detection data to determine whether it is really someone and other infrared sources into the detection area.
Passive infrared sensors have three key components: Fresnel filter lens, pyroelectric infrared sensor (PIR) and matching low noise amplifier. Fresnel lens has two roles: one is the focus, Sensor Bags Light that is, the pyroelectric infrared signal refraction on the PIR: the second is to detect the area is divided into a number of bright and dark areas, so that the detection area into the moving object (person) Can be in the form of temperature changes in the PIR to produce changes in the pyroelectric infrared signal. Generally, Sensor Bags Light the low-noise amplifier is matched. When the ambient temperature rises on the detector, especially when it is close to the body temperature (37 ° C), Sensor Bags Light the sensitivity of the sensor decreases and the gain is compensated to increase its sensitivity. The output signal can be used to drive the electronic switch, LED lighting circuit to achieve the switch control.