Street lamp illumination automatic controller and street lamp illumination control method
A technology for controllers and street lamps, applied in energy-saving control technology, circuit layout, lamp circuit layout, etc., can solve the problems of not realizing energy saving, not considering traffic conditions, etc., and achieve the effect of enhancing applicability
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[0027] See figure 1 The street lamp brightness adjustment system 100 of the present invention includes an LED array 40 and a power module 10, and a driver 30 and a controller 20 connected between the LED array 40 and the power module 10 to drive the LED array 40. The power supply module 10 is a constant current source module, which can be a solar battery, a DC storage battery, or various switching power supplies. The controller 20 includes an adjustment module 201 for generating a brightness adjustment signal 202 according to changes in actual local traffic flow, so that the driver 30 uses the brightness adjustment signal 202 to adjust the brightness of the LED array 40. The adjustment module 201 includes an erasable memory or a write-once memory for storing the brightness adjustment program. The brightness adjustment signal 201 is a pulse width modulation signal, and the driver 30 adjusts the brightness of the LED array 40 by changing the working ratio of the LED array 40.
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