Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Gradient extremum search algorithm-based double closed-loop lighting energy-saving control method

A search algorithm, energy-saving control technology, applied in energy-saving control technology, lighting devices, light sources, etc., can solve problems such as waste of energy consumption and complex control methods

Inactive Publication Date: 2016-10-12
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] And the existing lighting system, such as the Chinese invention patent application filed by the applicant on November 9, 2015 and published on January 27, 2016, with the publication number 105282939A and the name "A Method and System for Energy-Saving Lighting Control", can Realize the adjustment of the illuminance of the lamps to meet the user's illuminance requirements, but the control method is complicated and there is a lot of waste in energy consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gradient extremum search algorithm-based double closed-loop lighting energy-saving control method
  • Gradient extremum search algorithm-based double closed-loop lighting energy-saving control method
  • Gradient extremum search algorithm-based double closed-loop lighting energy-saving control method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0084] Now take grouping n=2 as an example, group all lamps in the lighting control area, that is, divide them into 2 groups, and the specific control process is as follows:

[0085] The first step: if figure 2 As shown, for the indoor area C that needs lighting control, according to the relevant configuration information, all 11 lamps in the room are artificially divided into two groups: the lamp numbered 1 is lamp group 1, and the percentage is w 1 , the remaining 6 lamps numbered 2 are lamp group 2, and the percentage is w 2 . percentage w 1 +w 2 = 1, by changing the percentage w 1 ,w 2 The value of can control the brightness between two sets of fixtures. A light sensor is installed in the illuminance control area, that is, area C, to collect the illuminance of the area.

[0086] Step 2: Set its illuminance to 90lux, and initialize it to estimate the percentage of the first one of the two groups of lamps, and then generate the percentage w after disturbance 1 , ano...

example 2

[0095] Now take grouping n=4 as an example, group all lamps in the lighting control area, that is, divide them into 4 groups, and the specific control process is as follows:

[0096] The first step: in this embodiment, if Figure 7 As shown, for indoor area C where lighting control is required, according to the relevant configuration information, all 11 lamps in the room are artificially divided into four groups: the lamp numbered 1 in area C is lamp group 1, and the percentage is w 1 ;The 4 lamps numbered 2 are lamp group 2, and the percentage is w 2 ;The 2 lamps numbered 3 are lamp group 3, and the percentage is w 3 , accounting for the 4 lamps numbered 4 is lamp group 4, and the percentage is w 4 . percentage w 1 +w 2 +w 3 +w 4 = 1, by changing the percentage w 1 ,w 2 ,w 3 ,w 4 The value of can control the brightness between two sets of fixtures. A light sensor is installed in the illuminance control area, that is, area C, to collect the illuminance of the area....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a gradient extremum search algorithm-based double closed-loop lighting energy-saving control method. The illumination requirement is kept through PID closed loop control; meanwhile, continuous iteration is carried out through a gradient extremum search algorithm to quickly search out the minimum value of energy consumption of a lighting system; and stable output of the minimum value is kept. The control has an important control role when applied to the lighting system. Aiming at the illumination energy consumption problem, the most ideal condition is to ensure the regional illumination demand and to reduce the energy consumption to the minimum value. According to the gradient extremum search algorithm-based double closed-loop lighting energy-saving control method, the grouping condition, namely the percentage of a lamp bank (each group of lamps) is adjusted through a Newton extremum search control algorithm, so that the condition that an illumination control region reaches the illumination requirement, i.e., the target illumination value is ensured; meanwhile, low-energy consumption stable output of the lighting system can be kept; the requirements of users are met; and the energy-saving effect is also achieved.

Description

technical field [0001] The invention belongs to the technical field of lighting control, and more specifically, relates to a control method for meeting illumination requirements while reducing energy consumption, that is, based on grouping lamps and using gradient method to search for extreme values ​​to find the lighting energy-saving lighting with the lowest relative energy consumption. Control Method. The control method can track the set illuminance value, that is, the target illuminance value in real time, so that the illuminance value of the target area is stabilized at the set illuminance value, and the relative minimum value of the total energy consumption can be searched under the condition that the illuminance value of the target area is stable, so as to realize Further energy savings. Background technique [0002] According to statistics, while the global energy consumption is increasing day by day, the power consumption is also rising accordingly, among which lig...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H05B37/02H05B47/11
CPCH05B47/11Y02B20/40
Inventor 殷春程玉华吴姗姗周士伟王伟魏修岭白利兵陶显峰薛建宏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com