What are the basic functions of solar traffic lights?

You may have seen street lamps with solar panels while shopping. This is what we call solar traffic lights. The reason why it can be widely used is that it has the functions of energy conservation, environmental protection and power storage. What are the basic functions of this solar traffic light? Today’s editor will introduce it to you.

1. When the light is off in the daytime, the system is in a sleep state, automatically wakes up on time, measures the ambient brightness and battery voltage, and verifies whether it should enter another state.

2. After dark, the LED brightness of flashing and solar energy traffic signal lights will change slowly according to the breathing mode. Like the breath lamp in the apple notebook, inhale for 1.5 seconds (gradually lighten), exhale for 1.5 seconds (gradually extinguish), stop, and then inhale and exhale.

3. Automatically monitor the lithium battery voltage. When the voltage is lower than 3.5V, the system will enter into a power shortage condition, and the system will sleep. The system will periodically wake up to monitor whether charging is possible.

4. In the absence of power for solar energy traffic lights, if there is sunlight, they will automatically charge.

5. After the battery is fully charged (the battery voltage is greater than 4.2V after the charging is disconnected), the charging will be automatically disconnected.

6. Under the charging condition, if the sun dissipates before the battery is fully charged, the normal working condition will be temporarily restored (lights off/flashing), and the next time the sun reappears, it will enter the charging condition again.

7. When the solar traffic signal lamp is working, the lithium battery voltage is lower than 3.6V, and it will enter the charging state when it is charged by sunlight. Avoid power failure when the battery voltage is lower than 3.5V, and do not flash the light.

In a word, the solar traffic signal lamp is a fully automatic signal lamp used for working and battery charging and discharging. The whole circuit is installed in a sealed plastic tank, which is waterproof and can work outdoors for a long time.