Street lamp constant illumination single lamp controller

Abstract

The present invention discloses a street lamp constant illumination single lamp controller. The street lamp constant illumination single lamp controller comprises: a signal acquisition module composedof one or more illuminance sensors placed under the light source side, wherein the signal acquisition module is configured to measure the average illuminance value of the LED street lamp and output the average illuminance value to a signal processing and output module; the signal processing and output module composed of the single chip microcomputer, wherein the signal processing and output module is configured to read the measured average illuminance value through serial communication, and then use the digital PID algorithm to adjust the duty ratio of outputting the 10V PWM signal to controlthe illumination of the LED street lamp; and a wireless communication module composed of the NB-IoT communication module, wherein the wireless communication module is communicated with the signal processing and output module through serial communication, and is communicated with a remote communication server through the NB-IoT network, and the remote communication server is configured to modify and read the setting of electrical parameters of different light sources in the signal processing and output module through the NB-IoT network. According to the street lamp constant illumination singlelamp controller provided by the present invention, the autonomous light flux output can be adjusted based on variables such as road surface illumination, LED light source self-lighting and the like,and constant illumination output of the lamp can be realized.

Description

technical field [0001] The invention belongs to the technical field of street lamp monitoring and control in urban lighting, in particular to a constant-illuminance single-lamp controller for street lamps. Background technique [0002] Light source products will have light decay during the whole life cycle of use. In road lighting, the light decay of the light source directly affects whether the lighting quality is up to standard. In order to overcome the impact of light decay on the quality of road lighting, urban lighting design adopts The method of increasing the power and increasing the initial luminous flux value of the lamp product (the luminous flux at the end of the lamp’s life is generally set to 70% of the initial luminous flux) to ensure that the quality of road lighting meets the design requirements during the entire life cycle of the light source. The existing LED dimming control technology can only be adjusted according to a preset ratio, and the change of the ...

AI Technical Summary

Problems solved by technology

[0004] 1. The current mainstream LED dimming control technology can only perform time-sharing dimming control (after a period of daily operation, that is, dimming according to a certain proportion during the period when the traffic flow decreases in the middle of the night), it cannot be based on the entire life cycle of the light source. Dimming

[0005] 2. The life of the LED light source chip depends on its operating temperature. The greater the operating load, the higher the temperature of the LED light source chip. Long-term full-load or overloaded operation will accelerate the aging of the LED light source chip and reduce the use of LED lamps. life

Moreover, it is time-consuming and labor-intensive to manually detect the quality of road lighting, and there are certain safety risks in the detection in motor vehicle lanes

[0007] 4. Due to the existence of the LED light source itself, once it is replaced due to the failure of the LED light source, the brightness of the replaced light source is obviously higher than that of other light sources with a long running time, resulting in uneven illumination on the road surface

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