Illumination time control method for street lamps

Abstract

The invention aims to solve the disadvantage that the illumination time of street lamps is inconvenient and unstable to control in the prior art, and provides an illumination time control method for street lamps. According to the control method for street lamps, the illumination time of street lamps is controlled according to local circadian duration, a microcontroller is used for setting the timethat the street lamps are lighted up in the afternoon on the summer solstice within one year to be lighting earliest time and setting the time that the street lamps are lighted up in the afternoon onthe first winter solstice after the summer solstice to be lighting latest time, the lighting of the street lamps during the period from the first summer solstice to the first winter solstice is aheadof time every day uniformly, the lighting time of the street lamps in the afternoon on the next summer solstice is the same as that in the afternoon on the pervious summer solstice, and the lightingof the street lamps during the period from the first winter solstice to the second summer solstice is delayed every day uniformly. According to the method, the street lamps can be lighted up at dark in time, never too early or too late, the electric power resources can be greatly saved, light dependent resistors do not need to be installed in the street lamps controlled by using the method, the street lamps are not influenced by lightning, and the stability is high.

Description

Technical field [0001] The invention belongs to the technical field of street lamp lighting, and in particular relates to a method for controlling street lamp lighting time. Background technique [0002] For the safety of people's passage, street lights are installed on both sides of many roads to facilitate people's passage. Street lights in many cities are controlled by lighting up and turning off regularly every day, and the day and night time will change with the seasons of the year. If the lighting time of the street lights is set too early, it may turn on when the sky is still bright in summer. This will cause a significant waste of power resources, and if the street lamp lighting time is set too late, in winter, it may be very dark before the street lamp lighting time, which is not convenient for people to pass. To solve the above problems, two methods are generally adopted. One is to adjust the lighting and extinguishing time of the street lights at regular intervals. Th...

AI Technical Summary

Problems solved by technology

The street lights in many cities are controlled by timing on and off every day, and the time of day and night will change with the four seasons of the year. If the street lights are turned on too early, they may turn on in summer when the sky is still bright. Together, this will cause a great waste of power resources, and if the lighting time of the street lights is set too late, it may not be the time for the street lights to light up in winter when the sky is already dark, which is not convenient for people to pass.

In response to the above problems, two methods are generally used to solve the problem. One is to adjust the on and off time of street lights at regular intervals. This adjustment method usually needs to be carried out many times a year, which is very cumbersome, and in cities with a large number of street lights In the middle, the workload of adjustment is very large; the second is to control the street lamps by means of light control. In this way, photoresistors are generally installed on the street lamps to sense the light, and the street lamps can be turned on in time when it is dark, which can greatly save Power resources are more practical, but this method also has its disadvantages. The photoresistor is unstable. In thunderstorms, lightning will disturb the sensing of the photoresistor. Street lights may also go out when it is dark. If other lights shine on the street lights , such as car lights, flashlights, will also make street lights go out at night