Radar Sensor VS PIR Motion Sensor on Solar Light
Nowadays there on two main motion sensors that are installed on solar street light. Both are used as occupancy sensors but their principle of working are different. Radar(Microwave) sensor is active sensor as it emits microwave signal for detection. PIR sensor is passive sensor as it senses infrared signal emitted by various objects including human body.
Following points summarize difference between Radar sensor and PIR sensor.
Radar sensor has higher sensitivity than PIR sensor.
Radar sensor has higher coverage range than PIR sensor.
Radar sensor has continuous field of detection zone where as PIR sensor has slotted detection zone. Hence PIR sensor may miss out objects. Hence Radar sensors are better in security applications compare to PIR sensors.
Radar sensors have higher false alarm rate compare to PIR sensors.
Radar sensors are slightly costlier compare to PIR sensors.
Radar sensors consume more energy than PIR sensors. PIR sensors consume about 0.8 to 1.0 Watt electricity and Radar sensors consume about 1.1 to 1.5 Watt.
Radar sensors are suitable for large area security applications where as PIR sensors are suitable for smaller and compact premises.
Our all in one solar street light are equiped with PIR motion sensor. Radar sensor is not suitable for this situation, becuase it is too sensive that it will catch every movement within the distance of 8m to 10m. And it has more energy consumtion, not economical.
Street & Roadway Solar Lighting
Smart cities start with bright ideas of solar lighting
The community benefits of solar lights
Solar outdoor lighting can play a critical role in building sustainable communities. Sustainability isn¡¯t just about being ¡°green¡±¡ªit involves economic, social, and environmental consideration.
The advantages of solar street lights are that they improve community sustainability because they can create social change, they are financially smart.
Being financially smart
As the cost of electricity continues to climb high, many companies seek new ways to keep energy bills low. Using the solar commercial lighting not only removes the monthly utility fees, but also avoids compounding future expenses for aged infrastructure repairs.
And with an installation cost which comparable to on-grid AC lighting, solar lighting improves community infrastructure while also offering long-term economic savings.
Good for people and the planet
Solar lighting uses renewable energy instead of traditional fuels, which can be appealing to communities with a desire or initiative to be more sustainable. Since trenching for wiring is not required, solar outdoor lighting also avoids environmental disruption during installation and maintenance¡ªalso making lighting possible in environmentally sensitive and rural areas.
Adopt new ways to make positive changes in your life.
Find out how cities use solar lighting to aid positive park usage, reduce traffic fatalities, or avoid copper theft.