Which Sensor Is Used in Solar Street Light?
Oct 29, 2024
The popularization and application of solar street lights is not only an innovation of traditional lighting methods but also a profound change in energy utilization mode. It encourages people to pay more attention to the development and utilization of renewable energy, promotes the continuous innovation and progress of energy technology, and lays a solid foundation for building a green, low-carbon, safe, and efficient energy system. With the advancement and development of science and technology, solar street lights with sensors can save more energy and extend the use time of solar led street lights. So what kind of sensors are solar street lights equipped with?
The time controller can set a fixed switch time, so the solar street lights can work in a fixed time period without manual control of the switch.
Some time controllers can also control the brightness of solar street lights in multiple periods, such as keeping it at 100% power for four hours after turning on the light, setting it to 50% power for the middle two hours, and setting it to 30% as the flow of people decreases, and finally completely shutting down. The multi-period controller can set the lighting time and brightness according to actual needs. This mode can reduce some useless lighting and extend the life of lamps and batteries, but this setting is not intelligent. Sometimes when someone passes by, the solar led street light is already in the off state and cannot provide lighting for people.
When someone passes by, the infrared sensor is triggered, and the light automatically turns on the strong light mode, which generally lasts for 30 seconds. When the person leaves the sensing range, the light automatically switches to the dark mode and waits for the next time someone approaches before adjusting to the bright mode. Solar powered outdoor street lights can ensure the brightness when someone passes by through infrared sensors and can also restore low brightness mode when no one is active, which can effectively save energy.
If it is an area with a large flow of people or vehicles, considering the issue of energy efficiency, you can choose to equip it with a human infrared sensor or a radar sensor to achieve intelligent control and energy savings.
In short, solar street lights with sensors are an intelligent outdoor lighting system that combines the best energy-saving practices with the most advanced technology. The advanced feature of commercial solar powered street lights with sensors is that they can intelligently control themselves and automatically adjust their light output according to the amount of natural light available and any artificial lighting that exists, achieving dual guarantees of lighting and energy saving, which is a new trend in the development of solar street lights in the future.
Which sensor is used in solar street light?
1. Time controller
The time controller of solar led street lights controls the switch of street lights by setting different periods. Generally, there are multiple modes, such as double periods, three time periods, and multiple periods.The time controller can set a fixed switch time, so the solar street lights can work in a fixed time period without manual control of the switch.
Some time controllers can also control the brightness of solar street lights in multiple periods, such as keeping it at 100% power for four hours after turning on the light, setting it to 50% power for the middle two hours, and setting it to 30% as the flow of people decreases, and finally completely shutting down. The multi-period controller can set the lighting time and brightness according to actual needs. This mode can reduce some useless lighting and extend the life of lamps and batteries, but this setting is not intelligent. Sometimes when someone passes by, the solar led street light is already in the off state and cannot provide lighting for people.
2. Light sensor
Most commercial solar powered street lights are equipped with light sensors, which enable the solar street lights to automatically turn on when it gets dark and automatically turn off when it gets light so as to ensure the all-night lighting of the solar powered outdoor street lights. Usually, the light sensor of the solar street light is used in combination with other intelligent controllers.3. PIR sensor
The working principle of the PIR sensor is to use a sensitive detector that can detect the heat energy emitted by organisms or objects with higher temperatures than the surrounding environment and trigger the street light by sensing the change in ambient temperature. Once the human body or other objects emitting infrared energy enter the range, it will react. The sensing distance is only 3-5 m.When someone passes by, the infrared sensor is triggered, and the light automatically turns on the strong light mode, which generally lasts for 30 seconds. When the person leaves the sensing range, the light automatically switches to the dark mode and waits for the next time someone approaches before adjusting to the bright mode. Solar powered outdoor street lights can ensure the brightness when someone passes by through infrared sensors and can also restore low brightness mode when no one is active, which can effectively save energy.
4. Radar motion sensor
The radar motion sensor triggers the solar street light by sensing moving objects with increased sensitivity, and slightly moving objects will also trigger the sensing effect. Like the PIR sensor, when a person passes by, the solar powered outdoor street lights turn on the full brightness mode. After 30 seconds of the person leaving, the street light power drops to 1/5 of the original power, and the sensing distance of the radar sensor can reach 8-10 meters. Radar sensing is a sensing technology that has emerged in recent years. It is smarter than human infrared sensing and voice control sensing, with higher sensitivity, longer sensing distance, and a better sensing effect.Benefits of solar street lights with sensors
1. Improve energy efficiency
Commercial solar powered street lights with sensors can intelligently judge the need to control the turning on and off of lights and even the brightness of the time and can provide appropriate light at the time and place required, thus avoiding the solar powered LED street lights being on at full power all night, in the middle of the night when no one passes by, which is a waste of energy. Solar street lights with sensors significantly reduce energy consumption and improve energy efficiency.2. Improve safety
Street light motion sensors improve safety by detecting movement in the surrounding area and activating street lights accordingly. When a person or vehicle passes by the sensor, the street light automatically turns on, providing instant illumination to that particular area. This feature helps prevent accidents because pedestrians and drivers will have better visibility, especially in low-light areas. By ensuring adequate lighting when needed, sensors can deter criminal activity and improve the overall safety of the community.3. Extend the life of solar street lights.
Street light motion sensors can significantly extend the life of solar powered LED street lights and reduce the time that street lights are used. When a street light is not in use, it remains off, reducing wear and tear on the street light and its components. As a result, the life of the solar street light will be longer and maintenance costs will be reduced.4. Reduce light pollution
When a person or vehicle moves within the range of the sensor, it sends a signal to the solar powered LED street light to turn on, illuminating the area where the movement is detected. Once the movement stops, the sensor sends a prompt to the light to turn off again, reducing unnecessary light output. This targeted lighting ensures that light is provided only when needed. It minimizes light pollution by reducing the amount of artificial light emitted into the surrounding environment.How to choose sensor for solar street light?
The sensors equipped with solar street lights can be selected according to the actual usage. If you only need to turn on the lights at night and turn them off at night, and if you don't consider other factors, you only need light sensors. Of course, if you consider energy saving and don't need to keep the lights on all night, you can also configure a time controller to control the switch and brightness of the lights in different periods.If it is an area with a large flow of people or vehicles, considering the issue of energy efficiency, you can choose to equip it with a human infrared sensor or a radar sensor to achieve intelligent control and energy savings.
In short, solar street lights with sensors are an intelligent outdoor lighting system that combines the best energy-saving practices with the most advanced technology. The advanced feature of commercial solar powered street lights with sensors is that they can intelligently control themselves and automatically adjust their light output according to the amount of natural light available and any artificial lighting that exists, achieving dual guarantees of lighting and energy saving, which is a new trend in the development of solar street lights in the future.
