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Method for predicting date according to night length change rule and control method of application thereof to street lamp

A technology of changing law and street light control, applied to the control of street lights, predicting the date field according to the changing law of night length, and can solve the problems of unreachable, NT unequal, unequal, etc.

Inactive Publication Date: 2017-09-15
普诚创智(成都)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Problems existing in the dimming method of the existing independent street lamp control system: 1. NT is not equal to NY; 2. (NT) / 2 time is not equal to 12 midnight of the day
If the dimming is done according to (NY) / 2, then the purpose of dimming around midnight (24:00) cannot be achieved at all

Method used

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  • Method for predicting date according to night length change rule and control method of application thereof to street lamp
  • Method for predicting date according to night length change rule and control method of application thereof to street lamp
  • Method for predicting date according to night length change rule and control method of application thereof to street lamp

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Embodiment 1

[0045] Such as figure 1 , the present invention predicts the method for date according to night length variation rule, comprises the following steps:

[0046] S100: Collect the daily night length value NL(x), and perform median filter processing on the recorded night length value NL(x): loop with 8 days as the window length, remove the maximum and minimum values, and accumulate and average the remaining values , get EPA_NL(x);

[0047] S200: Judging whether EPA_NL(x) satisfies one of the characteristics of winter solstice, summer solstice, vernal equinox and autumnal equinox;

[0048] S300: Based on the dates corresponding to the winter solstice, summer solstice, vernal equinox and autumnal equinox, determine the date DOT of the current day.

[0049] Do the median filtering process, with 8 days as the window length cycle, that is: EPA_NL (1) after median filtering on the 1st to 8th days, EPA_NL (2) after median filtering on the 2nd to 9th days , EPA_NL (3) is obtained afte...

Embodiment 2

[0069] The method of predicting the date according to the change law of day length in the present invention: according to the day time = 24 hours - night time, replace the night length with 24 hours - day time, calculate and predict the date through the method of predicting the date according to the change law of night length.

Embodiment 3

[0071] The method for predicting the date according to the changing law of day length in the present invention: the night length in the method of predicting the date according to the changing law of night length is changed into day length, and at the same time, in the judgment of the winter solstice feature, summer solstice feature, vernal equinox feature and autumnal equinox feature, according to the night length change The feature of the winter solstice in the method of predicting the regular date is also in line with the feature of the summer solstice in the method of predicting the date according to the law of day length change; similarly, the feature of the corresponding day length prediction in the forecast of night length that conforms to the feature of the summer solstice is in line with the feature of the winter solstice; in line with the feature of the night length forecast The characteristics of the vernal equinox conform to the characteristics of the autumn equinox i...

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Abstract

The invention discloses a method for predicting a date according to a night length change rule. The method is characterized by comprising following steps of S100: acquiring the night length value NL(x) of each day, and carrying out median filtering processing on the recorded night length value NL(x); carrying out circulation by taking eight days as a window length, removing the maximum value and the minimum value, and averaging cumulative sum of residual values to obtain the EPA_NL(x); S200: judging whether the night length value NL(x) meets one of winter solstice characteristics, summer solstice characteristics, spring equinox characteristics and autumn equinox characteristics; and S300: based on dates corresponding to the winter solstice, the summer solstice, the spring equinox and the autumn equinox, determining the date of the day DOT, and using an independent street lamp control method and system according to the method for predicting a date according to a night length change rule. According to the invention, by predicting the data, and obtaining a night length value according to the predicted date, the street lamp can be quite precisely controlled and a problem of failure to achieve controlling based on the night length time of every day in the current control method is avoided.

Description

technical field [0001] The invention relates to the field of street lamp control, in particular to a method for predicting a date according to the change law of night length and a control method applied to street lamps. Background technique [0002] The core function and purpose of the intelligent street lamp control system: make dimming output around midnight (24:00) to achieve the purpose of energy saving. For example, in the evening, the brightness is higher; in the hours around midnight, the brightness is the lowest; and before dawn, the brightness becomes higher again. [0003] Intelligent street lamp control systems are divided into two categories: 1. Networked type; 2. Independent type. The networked system uses the time provided by the network control center for dimming output. The stand-alone system refers to the dimming output for a long time last night. [0004] The dimming method of the existing independent street lamp control system: Step 1, record the night ...

Claims

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Application Information

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IPC IPC(8): G06Q10/04H05B37/02
CPCG06Q10/04H05B47/10Y02B20/40
Inventor 蒋伟陈正璘杨建宇
Owner 普诚创智(成都)科技有限公司
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