CN117082701A - LED lighting control system based on wireless technology - Google Patents
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/125—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using cameras
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- H—ELECTRICITY
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
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- H—ELECTRICITY
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/14—Controlling the light source in response to determined parameters by determining electrical parameters of the light source
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- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an LED illumination control system based on a wireless technology, which relates to the technical field of illumination control, and utilizes a data acquisition module to acquire images and electric energy consumption data of a construction site in real time, and a three-dimensional twin model is constructed, so that the comprehensive acquisition and arrangement of data required by LED illumination control are realized, and a solid foundation is provided for subsequent analysis and control; the feature extraction module is used, so that the system can extract key data information from a large amount of collected data, the data redundancy is reduced, the availability and analysis efficiency of the data are improved, and the system is facilitated to capture the features of the illumination environment of the construction site more accurately; the correlation between the revealed data is analyzed through the comprehensive analysis module, the illumination safety index Aqzs is calculated through comprehensive analysis and is compared with a preset safety threshold K, and finally objective scheme countermeasures are obtained, so that the safety of LED illumination in a construction site is improved under the condition of energy conservation and environmental protection.
Description
Technical Field
The invention relates to the technical field of illumination control, in particular to an LED illumination control system based on a wireless technology.
Background
Wireless LED lighting technology has long played an important role, providing a rich lighting demand for humans. With the development of social economy and the continuous increase of energy demands and lighting demands, the scale and complexity of wireless technology LED lighting technology is also continuously increasing. In this process, the comprehensive operation and control system becomes a critical task in order to ensure reasonable utilization of LED lighting resources, efficient operation of equipment, and handling of emergency situations.
LED lighting technology has been widely used in various fields as an important energy saving and environmental protection technology. The LED illuminating lamp is a preferred illuminating solution in the fields of industry, commerce, transportation, construction sites and the like by virtue of the characteristics of high efficiency, long service life and adjustability. On the worksite, reasonable use of the LED illumination also brings non-negligible influence, especially when workers get off duty and check the factory buildings at night, if the supply of the LED illumination brightness cannot be ensured, accidents easily occur on the worksite, the normal starting of the worksite is influenced, then the safety control of the LED illumination is particularly important, the LED illumination needs to be reasonably controlled under the condition of not wasting energy, the LED illumination is influenced by the power of different lamps, the number of signs at the roadside, the number of shortsights on the way off duty, the noise duration, the dust coverage area of the surfaces of the lamps and other factors, and the finally calculated safety result of the system is inaccurate and corresponding safety control management measures cannot be timely provided.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an LED illumination control system based on a wireless technology, which solves the problems in the background technology.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the LED lighting control system based on the wireless technology comprises a data acquisition module, a feature extraction module, a comprehensive analysis module, a safety control module and a wireless transmission module;
the data acquisition module is used for acquiring images of a worksite factory building and road positions thereof, establishing a three-dimensional twin model, and acquiring image data and electric energy consumption data of LED illumination control related to the whole worksite;
the characteristic extraction module is used for filtering and analyzing the image data and the electric energy consumption data, extracting effective data information, arranging and packaging the effective data information into a data set, and sending the data set to the comprehensive analysis module;
the comprehensive analysis module is used for building model training according to data in the data set to obtain: the material transparency Ctd, the dust coverage area Hcmj, the number of signboards Tsgs, the sensor threshold Cyz and the illumination time Zsj are calculated through training analysis: the light transmittance Ktl, the illuminance coefficient Zmxs, the energy consumption control coefficient Nhxs and the illumination safety index Aqzs, which is obtained by the following formula:
where ρ is expressed as a correlation coefficient, f 1 And f 2 Weight values, C, expressed as illumination coefficient Zmxs and energy consumption control coefficient Nhxs, respectivelyExpressed as a correction constant;
calculating the transparency Ctd of the material and the dust coverage area Hcmj to obtain the light transmittance Ktl; calculating the light transmittance Ktl and the number Tsgs of the signboards to obtain an illuminance coefficient Zmxs; calculating a sensor threshold Cyz and illumination time Zsj to obtain an energy consumption control coefficient Nhxs; the energy consumption control coefficient Nhxs and the illuminance coefficient Zmxs are calculated in a correlated manner, and an illumination safety index Aqzs is obtained;
the safety control module is used for comparing and analyzing the illumination safety index Aqzs with a preset safety threshold K to obtain a safety level scheme strategy, so that the accident frequency of a construction site can be reduced;
the wireless transmission module is used for realizing the condition that a background manager remotely monitors and controls the LED illumination of the construction site in real time.
Preferably, the data acquisition module comprises an image data unit and an electric energy consumption data unit;
the image data unit is used for recording and summarizing the LED illumination conditions in each factory building and road of the construction site to obtain image data, wherein the image data comprise the number of workers entering and exiting the construction site, myopia groups, the illumination uniformity degree, the dust area on the surface of the LED illumination equipment, the illumination time length and the thickness of lamp materials;
the electric energy consumption data unit is used for collecting related energy consumption of LED illumination in each factory building and roads of the construction site to obtain electric energy consumption data, and the electric energy consumption data comprise LED lamp power, efficiency, illumination brightness and threshold setting of a sensor.
Preferably, the feature extraction module comprises a preprocessing unit and an identification unit;
the preprocessing unit is used for removing repeated and wrong data information in the image data and the electric energy consumption data, smoothing the data and correcting the data just acquired;
the identification unit is used for identifying the corrected data, extracting effective data information, reducing data dimension and removing redundant information.
Preferably, the light transmittance Ktl is obtained by the following formula:
where Ctd is denoted as material transparency, hcmj is denoted as dust coverage area, wd is denoted as temperature;
calculating the light transmittance Ktl and the number Tsgs of the signboards to obtain an illumination coefficient Zmxs, wherein the illumination coefficient Zmxs is obtained by the following formula:
wherein Jsrs is expressed as the number of myopia people, zy is expressed as the noise duration, a 1 、a 2 And a 3 The weight values are respectively expressed as the number Tsgs of the signboards, the number Jsrs of the shortsightedness persons and the noise duration Zy, and R is expressed as a correction coefficient.
Preferably, the energy consumption control coefficient Nhxs is obtained by the following formula:
where Zsj is represented as illumination time, dsl is represented as lamp power, cyz is represented as sensor threshold, w 1 、w 2 And w 3 Weight values expressed as illumination time Zsj, lamp power Dsl and sensor threshold Cyz, respectively, wherein 0.55.ltoreq.w 1 ≤0.65、0.65≤w 2 ≤0.85、0.75≤w 3 ≤0.85，w 1 +w 2 +w 3 And less than or equal to 2.2, wherein L is expressed as a correction constant.
Preferably, the energy consumption control coefficient Nhxs is compared with a preset control threshold Q for analysis:
when the energy consumption control coefficient Nhxs is higher than a preset control threshold value Q, namely Nhxs > Q, indicating that the site is in an over-illumination state at the present stage;
when the energy consumption control coefficient Nhxs is lower than the preset control threshold value Q, namely Nhxs > Q, the construction site illumination monitored at the current stage is in an energy-saving optimized state.
Preferably, the correlation coefficient ρ is obtained by depth calculation analysis taking into consideration the correlation between the illuminance coefficient Zmxs and the energy consumption control coefficient Nhxs, the above-described correlation coefficient ρ being obtained by the following formula:
wherein Xi is represented as an observed value of illumination coefficient Zmxs in different time axes, yi is represented as an observed value of energy consumption control coefficient Nhxs in different time axes, μx is represented as an average observed value of illumination coefficient Zmxs, and μy is represented as an average observed value of energy consumption control coefficient Nhxs;
the meaning of the formula is: judging the correlation strength between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs according to the value range of the Pearson correlation coefficient rho;
when the correlation coefficient rho is 1, the relationship of strong positive correlation exists, namely, the linear positive correlation relationship exists between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs;
when the correlation coefficient rho is 0, the linear correlation between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs does not exist;
when the correlation coefficient ρ is-1, it indicates that there is a strong negative correlation, i.e., there is a linear negative correlation between the illuminance coefficient Zmxs and the energy consumption control coefficient Nhxs.
Preferably, according to the correlation calculation of the energy consumption control coefficient Nhxs and the illuminance coefficient Zmxs, an illumination safety index Aqzs is obtained, and the illumination safety index Aqzs is compared and analyzed with a preset safety threshold K to obtain a safety level scheme strategy:
when Aqzs is less than or equal to K+6, a low safety level is obtained, and the safety of LED illumination in a construction site is low, so that the safety of workers going to work at night and checking a factory building is seriously influenced;
when K+7 is less than or equal to Aqzs and less than or equal to K+10, obtaining a medium safety level, wherein the medium safety level is expressed as the safety of LED illumination in a construction site, and the illumination intensity at night of the construction site needs to be improved under the condition that the energy consumption control coefficient Nhxs is lower than a preset control threshold Q;
when K+11 is less than or equal to Aqzs is less than or equal to K+14, a high safety level is obtained, and the safety of LED illumination in a construction site is high, so that safety measures are not required.
Preferably, the wireless transmission module comprises a control unit;
the control unit is used for timely early warning aiming at the comparison result between the illumination safety index Aqzs and the preset safety threshold K, and adopting a corresponding scheme strategy for the corresponding safety level to improve the overall safety of the construction site.
Preferably, the wireless transmission module further comprises a communication security unit;
the communication security unit is used for ensuring the security of the control unit, and background management personnel need to carry out identity verification and access control before carrying out the change of the security level scheme strategy so as to protect a background system from unauthorized access and interference.
(III) beneficial effects
The invention provides an LED illumination control system based on a wireless technology. The beneficial effects are as follows:
(1) According to the LED illumination control system based on the wireless technology, the data acquisition module is utilized to acquire the image and the electric energy consumption data of the construction site in real time, and a three-dimensional twin model is constructed, so that the comprehensive acquisition and arrangement of the data required by LED illumination control are realized, and a solid foundation is provided for subsequent analysis and control; the feature extraction module is used, so that the system can extract key data information from a large amount of collected data, the data redundancy is reduced, the availability and analysis efficiency of the data are improved, and the system is facilitated to capture the features of the illumination environment of the construction site more accurately; the correlation between the revealed data is analyzed through the comprehensive analysis module, the illumination safety index Aqzs is calculated through comprehensive analysis and is compared with a preset safety threshold K, and finally objective scheme countermeasures are obtained, so that the safety of LED illumination in a construction site is improved under the condition of energy conservation and environmental protection.
(2) According to the LED lighting control system based on the wireless technology, the data acquired and updated by arrangement are subjected to depth calculation through the data acquisition module and the feature extraction module, so that the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs are obtained, a plurality of factors including the number Jsrs of myopia people, the number Tsgs of the signboards and the noise duration Zy are comprehensively considered in calculation of the illumination coefficient Zmxs, and comprehensive analysis of the factors enables the system to intelligently master and adjust the lighting level so as to meet the requirements under different working conditions, the safety and the comfort of a working environment are improved, the energy consumption condition of the LED lighting of a construction site is accurately mastered, excessive lighting and waste are avoided, and energy conservation advocated as a target is adhered to.
(3) According to the LED lighting control system based on the wireless technology, the association degree of the energy consumption control coefficient Nhxs and the illumination coefficient Zmxs can be accurately evaluated through calculation of the Pearson correlation coefficient rho, the illumination safety index Aqzs is calculated through the China analysis module and the safety control module and is compared with the preset safety threshold K, so that the safety level of a construction site is obtained, intelligent decision support is provided for a construction site manager to determine when safety measures are needed to be taken or the LED lighting system is adjusted, a background staff can manage the LED lighting control system through the communication safety unit through the identity verification and access control links, the background manager can effectively protect the system from unauthorized access and interference, and stability of the system and confidentiality of data are guaranteed.
Drawings
Fig. 1 is a block diagram and a schematic diagram of an LED lighting control system based on a wireless technology according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Wireless LED lighting technology has long played an important role, providing a rich lighting demand for humans. With the development of social economy and the continuous increase of energy demands and lighting demands, the scale and complexity of wireless technology LED lighting technology is also continuously increasing. In this process, the comprehensive operation and control system becomes a critical task in order to ensure reasonable utilization of LED lighting resources, efficient operation of equipment, and handling of emergency situations.
LED lighting technology has been widely used in various fields as an important energy saving and environmental protection technology. The LED illuminating lamp is a preferred illuminating solution in the fields of industry, commerce, transportation, construction sites and the like by virtue of the characteristics of high efficiency, long service life and adjustability. On the worksite, reasonable use of the LED illumination also brings non-negligible influence, especially when workers get off duty and check the factory buildings at night, if the supply of the LED illumination brightness cannot be ensured, accidents easily occur on the worksite, the normal starting of the worksite is influenced, then the safety control of the LED illumination is particularly important, the LED illumination needs to be reasonably controlled under the condition of not wasting energy, the LED illumination is influenced by the power of different lamps, the number of signs at the roadside, the number of shortsights on the way off duty, the noise duration, the dust coverage area of the surfaces of the lamps and other factors, and the finally calculated safety result of the system is inaccurate and corresponding safety control management measures cannot be timely provided.
Example 1
Referring to fig. 1, the invention provides an LED lighting control system based on wireless technology, which comprises a data acquisition module, a feature extraction module, a comprehensive analysis module, a safety control module and a wireless transmission module;
the data acquisition module is used for acquiring images of a worksite factory building and road positions thereof, establishing a three-dimensional twin model, and acquiring image data and electric energy consumption data of LED illumination control related to the whole worksite;
the characteristic extraction module is used for filtering and analyzing the image data and the electric energy consumption data, extracting effective data information, arranging and packaging the effective data information into a data set, and sending the data set to the comprehensive analysis module;
the comprehensive analysis module is used for building model training according to data in the data set to obtain: the material transparency Ctd, the dust coverage area Hcmj, the number of signboards Tsgs, the sensor threshold Cyz and the illumination time Zsj are calculated through training analysis: the light transmittance Ktl, the illuminance coefficient Zmxs, the energy consumption control coefficient Nhxs and the illumination safety index Aqzs, which is obtained by the following formula:
where ρ is expressed as a correlation coefficient, f 1 And f 2 The weight values respectively expressed as an illuminance coefficient Zmxs and an energy consumption control coefficient Nhxs, and C expressed as a correction constant;
calculating the transparency Ctd of the material and the dust coverage area Hcmj to obtain the light transmittance Ktl; calculating the light transmittance Ktl and the number Tsgs of the signboards to obtain an illuminance coefficient Zmxs; calculating a sensor threshold Cyz and illumination time Zsj to obtain an energy consumption control coefficient Nhxs; the energy consumption control coefficient Nhxs and the illuminance coefficient Zmxs are calculated in a correlated manner, and an illumination safety index Aqzs is obtained;
the safety control module is used for comparing and analyzing the illumination safety index Aqzs with a preset safety threshold K to obtain a safety level scheme strategy, so that the accident frequency of a construction site can be reduced;
the wireless transmission module is used for realizing the condition that a background manager remotely monitors and controls the LED illumination of the construction site in real time, which is beneficial to timely adjustment and maintenance.
In the operation of the system, the system acquires the image and the electric energy consumption data of the site in real time, and a three-dimensional twin model is constructed, so that the comprehensive acquisition and arrangement of the data required by the LED illumination control are realized; the feature extraction module is used, so that the system can extract key data information from a large amount of collected data, and the data redundancy is reduced; the correlation between the revealed data is analyzed through the comprehensive analysis module, the illumination safety index Aqzs is calculated through comprehensive analysis and is compared with a preset safety threshold K, and finally objective scheme countermeasures are obtained, so that the safety of LED illumination in a construction site is improved under the condition of energy conservation and environmental protection.
Example 2
Referring to fig. 1, the following details are: the data acquisition module comprises an image data unit and an electric energy consumption data unit;
the image data unit is used for recording and summarizing the LED illumination conditions in each factory building and road of the construction site to obtain image data, wherein the image data comprise the number of workers entering and exiting the construction site, myopia groups, the illumination uniformity degree, the dust area on the surface of the LED illumination equipment, the illumination time length and the thickness of lamp materials;
the electric energy consumption data unit is used for collecting related energy consumption of LED illumination in each factory building and roads of the construction site to obtain electric energy consumption data, and the electric energy consumption data comprise LED lamp power, efficiency, illumination brightness and threshold setting of a sensor.
The feature extraction module comprises a preprocessing unit and an identification unit;
the preprocessing unit is used for removing repeated and wrong data information in the image data and the electric energy consumption data, smoothing the data and correcting the data just collected;
the identification unit is used for identifying the corrected data, extracting effective data information, reducing data dimension, removing redundant information and improving the availability and analysis efficiency of the data.
Example 3
Referring to fig. 1, the following details are: the light transmittance Ktl is obtained by the following formula:
where Ctd is denoted as material transparency, hcmj is denoted as dust coverage area, wd is denoted as temperature;
the collection of the transparency Ctd of the material is used for determining the degree to which light can penetrate through various lamp materials in a construction site, and is obtained by using a photometer;
the dust coverage area Hcmj refers to the area of the lamp surface covered by dust, the light intensity is measured by a photometer, and the irradiated light intensity is measured by the lamp surface, so that the dust coverage area Hcmj is calculated indirectly;
the temperature Wd is obtained by a temperature sensor.
Calculating the light transmittance Ktl and the number Tsgs of the signboards to obtain an illumination coefficient Zmxs, wherein the illumination coefficient Zmxs is obtained by the following formula:
wherein Jsrs is expressed as the number of myopia people, zy is expressed as the noise duration, a 1 、a 2 And a 3 The weight values are respectively expressed as the number Tsgs of the signboards, the number Jsrs of the shortsightedness persons and the noise duration Zy, and R is expressed as a correction coefficient.
The number Jsrs of myopic people is expressed as myopic workers wearing glasses on roads when working at night at a construction site, the number Tsgs of the warning boards is expressed as the number of the indication boards or the number of the warning boards on the construction site, and the number Jsgs and the number Tsgs of the warning boards are obtained through the video heads;
the noise duration Zy is acquired through a microphone;
the energy consumption control coefficient Nhxs is obtained by the following formula:
where Zsj is represented as illumination time, dsl is represented as lamp power, cyz is represented as sensor threshold, w 1 、w 2 And w 3 Weight values expressed as illumination time Zsj, lamp power Dsl and sensor threshold Cyz, respectively, wherein 0.55.ltoreq.w 1 ≤0.65、0.65≤w 2 ≤0.85、0.75≤w 3 ≤0.85，w 1 +w 2 +w 3 And less than or equal to 2.2, wherein L is expressed as a correction constant.
The illumination time Zsj is acquired by a photosensitive sensor; the lamp power Dsl is usually collected by a camera on the product specification or package of the lamp;
sensor threshold Cyz refers to a threshold set by a worksite manager to a photosensitive sensor, the magnitude of which will determine when to trigger adjustment of LED illumination, such as when the intensity of ambient light is below or above the threshold, the LED illumination system will automatically turn on or off;
comparing and analyzing the energy consumption control coefficient Nhxs with a preset control threshold Q:
when the energy consumption control coefficient Nhxs is higher than a preset control threshold value Q, namely Nhxs > Q, indicating that the site is in an over-illumination state at the present stage;
when the energy consumption control coefficient Nhxs is lower than the preset control threshold value Q, namely Nhxs > Q, the construction site illumination monitored at the current stage is in an energy-saving optimized state.
In this embodiment, the data collecting module and the feature extracting module are used for performing depth calculation on the collected and updated data, so as to obtain the illuminance coefficient Zmxs and the energy consumption control coefficient Nhxs, and comprehensively consider a plurality of factors in the calculation of the illuminance coefficient Zmxs, and the comprehensive analysis of the factors enables the system to intelligently grasp and adjust the illumination level so as to meet the requirements under different working conditions, improve the safety and comfort of the working environment, accurately grasp the energy consumption condition of the site LED illumination, and avoid excessive illumination and waste.
Example 4
Referring to fig. 1, the following details are: taking into consideration the correlation between the illuminance coefficient Zmxs and the energy consumption control coefficient Nhxs, obtaining a correlation coefficient ρ by depth calculation analysis, the correlation coefficient ρ being obtained by the following formula:
wherein Xi is represented as an observed value of illumination coefficient Zmxs in different time axes, yi is represented as an observed value of energy consumption control coefficient Nhxs in different time axes, μx is represented as an average observed value of illumination coefficient Zmxs, and μy is represented as an average observed value of energy consumption control coefficient Nhxs;
the meaning of the formula is: judging the correlation strength between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs according to the value range of the Pearson correlation coefficient rho;
when the correlation coefficient rho is 1, the relationship of strong positive correlation exists, namely, the linear positive correlation relationship exists between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs;
when the correlation coefficient rho is 0, the linear correlation between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs does not exist;
when the correlation coefficient ρ is-1, it indicates that there is a strong negative correlation, i.e., there is a linear negative correlation between the illuminance coefficient Zmxs and the energy consumption control coefficient Nhxs.
According to the correlation calculation of the energy consumption control coefficient Nhxs and the illuminance coefficient Zmxs, an illumination safety index Aqzs is obtained, and the illumination safety index Aqzs is compared and analyzed with a preset safety threshold K to obtain a safety level scheme strategy:
when Aqzs is less than or equal to K+6, a low safety level is obtained, the safety of LED illumination in the construction site is low, the safety of work and factory building inspection at night is seriously influenced, and the safety of the LED illumination in the construction site is improved by increasing the number of lamps, increasing the brightness or improving the positions of the lamps;
when K+7 is less than or equal to Aqzs and less than or equal to K+10, obtaining a medium safety level, wherein the medium safety level is expressed as the safety of LED illumination in a construction site, and the illumination intensity at night of the construction site needs to be improved under the condition that the energy consumption control coefficient Nhxs is lower than a preset control threshold Q;
when K+11 is less than or equal to Aqzs is less than or equal to K+14, a high safety level is obtained, and the safety of LED illumination in a construction site is high, so that safety measures are not required.
The wireless transmission module comprises a control unit;
the control unit is used for timely early warning aiming at the comparison result between the illumination safety index Aqzs and the preset safety threshold K, and adopting a corresponding scheme strategy for the corresponding safety level to improve the overall safety of the construction site.
The wireless transmission module further comprises a communication security unit;
the communication security unit is used for ensuring the security of the control unit, and background management personnel need to carry out identity verification and access control before carrying out the change of the security level scheme strategy so as to protect a background system from unauthorized access and interference.
In this embodiment, by calculating the pearson correlation coefficient ρ, the system can accurately evaluate the correlation degree between the energy consumption control coefficient Nhxs and the illuminance coefficient Zmxs, calculate the illumination safety index Aqzs by the comprehensive analysis module and the safety control module, compare the illumination safety index Aqzs with the preset safety threshold value K, and obtain the safety level of the construction site, which provides an intelligent decision support for a construction site manager to determine when to take safety measures or adjust the LED lighting system, and by the communication safety unit, the background staff needs to go through the authentication and access control links to manage the LED lighting control system.
Examples: a worksite incorporating a wireless technology based LED lighting control system, the following being examples of the worksite:
and (3) data acquisition:
material transparency Ctd:85%;
dust coverage area Hcmj:12.3;
number of signboards Tsgs:6, preparing a base material;
sensor threshold Cyz:30Lux;
illumination time Zsj:5h;
temperature Wd:28 degrees;
the number of myopes Jsrs:13;
noise duration Zy:3.5h;
from the above data, the following calculations can be made:
transmittance of light
Illumination coefficient
Energy consumption control coefficient
Lighting safety index
Assuming that k=3.1, the Aqzs is 14.1 or less and 17.1 or less, a medium safety level is obtained, and the safety of LED illumination in the building site is indicated as general, and the illumination intensity at night of the building site needs to be improved when the energy consumption control coefficient Nhxs is lower than the preset control threshold Q.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An LED lighting control system based on wireless technology, which is characterized in that: the system comprises a data acquisition module, a feature extraction module, a comprehensive analysis module, a safety control module and a wireless transmission module;
the data acquisition module is used for acquiring images of a worksite factory building and road positions thereof, establishing a three-dimensional twin model, and acquiring image data and electric energy consumption data of LED illumination control related to the whole worksite;
the characteristic extraction module is used for filtering and analyzing the image data and the electric energy consumption data, extracting effective data information, arranging and packaging the effective data information into a data set, and sending the data set to the comprehensive analysis module;
the comprehensive analysis module is used for building model training according to data in the data set to obtain: the material transparency Ctd, the dust coverage area Hcmj, the number of signboards Tsgs, the sensor threshold Cyz and the illumination time Zsj are calculated through training analysis: the light transmittance Ktl, the illuminance coefficient Zmxs, the energy consumption control coefficient Nhxs and the illumination safety index Aqzs, which is obtained by the following formula:
where ρ is expressed as a correlation coefficient, f 1 And f 2 The weight values respectively expressed as an illuminance coefficient Zmxs and an energy consumption control coefficient Nhxs, and C expressed as a correction constant;
calculating the transparency Ctd of the material and the dust coverage area Hcmj to obtain the light transmittance Ktl; calculating the light transmittance Ktl and the number Tsgs of the signboards to obtain an illuminance coefficient Zmxs; calculating a sensor threshold Cyz and illumination time Zsj to obtain an energy consumption control coefficient Nhxs; the energy consumption control coefficient Nhxs and the illuminance coefficient Zmxs are calculated in a correlated manner, and an illumination safety index Aqzs is obtained;
the safety control module is used for comparing and analyzing the illumination safety index Aqzs with a preset safety threshold K to obtain a safety level scheme strategy, so that the accident frequency of a construction site can be reduced;
the wireless transmission module is used for realizing the condition that a background manager remotely monitors and controls the LED illumination of the construction site in real time.
2. The wireless technology based LED lighting control system of claim 1, wherein: the data acquisition module comprises an image data unit and an electric energy consumption data unit;
the image data unit is used for recording and summarizing the LED illumination conditions in each factory building and road of the construction site to obtain image data, wherein the image data comprise the number of workers entering and exiting the construction site, myopia groups, the illumination uniformity degree, the dust area on the surface of the LED illumination equipment, the illumination time length and the thickness of lamp materials;
the electric energy consumption data unit is used for collecting related energy consumption of LED illumination in each factory building and roads of the construction site to obtain electric energy consumption data, and the electric energy consumption data comprise LED lamp power, efficiency, illumination brightness and threshold setting of a sensor.
3. The wireless technology based LED lighting control system of claim 2, wherein: the feature extraction module comprises a preprocessing unit and an identification unit;
the preprocessing unit is used for removing repeated and wrong data information in the image data and the electric energy consumption data, smoothing the data and correcting the data just acquired;
the identification unit is used for identifying the corrected data, extracting effective data information, reducing data dimension and removing redundant information.
4. The wireless technology based LED lighting control system of claim 3, wherein: the light transmittance Ktl is obtained by the following formula:
where Ctd is denoted as material transparency, hcmj is denoted as dust coverage area, wd is denoted as temperature;
calculating the light transmittance Ktl and the number Tsgs of the signboards to obtain an illumination coefficient Zmxs, wherein the illumination coefficient Zmxs is obtained by the following formula:
wherein Jsrs is expressed as the number of myopia people, zy is expressed as the noise duration, a 1 、a 2 And a 3 The weight values are respectively expressed as the number Tsgs of the signboards, the number Jsrs of the shortsightedness persons and the noise duration Zy, and R is expressed as a correction coefficient.
5. The wireless technology based LED lighting control system of claim 4, wherein: the energy consumption control coefficient Nhxs is obtained by the following formula:
where Zsj is represented as illumination time, dsl is represented as lamp power, cyz is represented as sensor threshold, w 1 、w 2 And w 3 The weight values, denoted as illumination time Zsj, luminaire power Dsl and sensor threshold Cyz, respectively, wherein,
0.55≤w 1 ≤0.65、0.65≤w 2 ≤0.85、0.75≤w 3 ≤0.85，w 1 +w 2 +w 3 and less than or equal to 2.2, wherein L is expressed as a correction constant.
6. The wireless technology based LED lighting control system of claim 5, wherein: comparing and analyzing the energy consumption control coefficient Nhxs with a preset control threshold Q:
when the energy consumption control coefficient Nhxs is higher than a preset control threshold value Q, namely Nhxs > Q, indicating that the site is in an over-illumination state at the present stage;
when the energy consumption control coefficient Nhxs is lower than the preset control threshold value Q, namely Nhxs > Q, the construction site illumination monitored at the current stage is in an energy-saving optimized state.
7. The wireless technology based LED lighting control system of claim 6, wherein: taking into consideration the correlation between the illuminance coefficient Zmxs and the energy consumption control coefficient Nhxs, obtaining a correlation coefficient ρ by depth calculation analysis, the correlation coefficient ρ being obtained by the following formula:
wherein Xi is represented as an observed value of illumination coefficient Zmxs in different time axes, yi is represented as an observed value of energy consumption control coefficient Nhxs in different time axes, μx is represented as an average observed value of illumination coefficient Zmxs, and μy is represented as an average observed value of energy consumption control coefficient Nhxs;
the meaning of the formula is: judging the correlation strength between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs according to the value range of the Pearson correlation coefficient rho;
when the correlation coefficient rho is 1, the relationship of strong positive correlation exists, namely, the linear positive correlation relationship exists between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs;
when the correlation coefficient rho is 0, the linear correlation between the illumination coefficient Zmxs and the energy consumption control coefficient Nhxs does not exist;
when the correlation coefficient ρ is-1, it indicates that there is a strong negative correlation, i.e., there is a linear negative correlation between the illuminance coefficient Zmxs and the energy consumption control coefficient Nhxs.
8. The wireless technology based LED lighting control system of claim 7, wherein: according to the correlation calculation of the energy consumption control coefficient Nhxs and the illuminance coefficient Zmxs, an illumination safety index Aqzs is obtained, and the illumination safety index Aqzs is compared and analyzed with a preset safety threshold K to obtain a safety level scheme strategy:
when Aqzs is less than or equal to K+6, a low safety level is obtained, and the safety of LED illumination in a construction site is low, so that the safety of workers going to work at night and checking a factory building is seriously influenced;
when K+7 is less than or equal to Aqzs and less than or equal to K+10, obtaining a medium safety level, wherein the medium safety level is expressed as the safety of LED illumination in a construction site, and the illumination intensity at night of the construction site needs to be improved under the condition that the energy consumption control coefficient Nhxs is lower than a preset control threshold Q;
when K+11 is less than or equal to Aqzs is less than or equal to K+14, a high safety level is obtained, and the safety of LED illumination in a construction site is high, so that safety measures are not required.
9. The wireless technology based LED lighting control system of claim 8, wherein: the wireless transmission module comprises a control unit;
the control unit is used for timely early warning aiming at the comparison result between the illumination safety index Aqzs and the preset safety threshold K, and adopting a corresponding scheme strategy for the corresponding safety level to improve the overall safety of the construction site.
10. The wireless technology based LED lighting control system of claim 9, wherein: the wireless transmission module further comprises a communication security unit;
the communication security unit is used for ensuring the security of the control unit, and background management personnel need to carry out identity verification and access control before carrying out the change of the security level scheme strategy so as to protect a background system from unauthorized access and interference.
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| CN117500127B (en) * | 2024-01-03 | 2024-03-15 | 深圳市华电照明有限公司 | Light control method and system based on wireless communication |
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