Who is controlling the switch of street lights?

The switch of street lights used to mainly rely on manual labor.

Not only is it time-consuming and labor-intensive, but it can also lead to inconsistent lighting times in different regions, with some turning on the lights before dark and others not turning off the lights when it's light.

If the lighting time is not appropriate, it can also cause problems: if the lighting time is too long, it will waste a lot of electricity. Turning on the lights for a short time can affect traffic safety.

Later, many cities established schedules for street light work based on the length of the local four seasons, using mechanical timers to delegate the task of turning on and off street lights to timers, allowing street lights in the city to work and rest reasonab-

ly and on time.

But this type of clock cannot change the time to turn on and off the lights based on the weather, after all, there are always several times a year when dark clouds come over the city and it gets dark earlier.

In response to this situation, some roads have installed intelligent street lights.