CN112188673A - Office intelligent lighting control system with healthy light - Google Patents
Office intelligent lighting control system with healthy light Download PDFInfo
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- CN112188673A CN112188673A CN202011108221.2A CN202011108221A CN112188673A CN 112188673 A CN112188673 A CN 112188673A CN 202011108221 A CN202011108221 A CN 202011108221A CN 112188673 A CN112188673 A CN 112188673A
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- 230000033764 rhythmic process Effects 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims abstract description 18
- 238000013500 data storage Methods 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000009877 rendering Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000001020 rhythmical effect Effects 0.000 claims 2
- 230000003750 conditioning effect Effects 0.000 claims 1
- 230000002277 temperature effect Effects 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 22
- 230000009471 action Effects 0.000 abstract description 11
- 230000000007 visual effect Effects 0.000 description 7
- 210000004556 brain Anatomy 0.000 description 6
- 230000004071 biological effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000027288 circadian rhythm Effects 0.000 description 2
- 238000004737 colorimetric analysis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000282412 Homo Species 0.000 description 1
- YJPIGAIKUZMOQA-UHFFFAOYSA-N Melatonin Natural products COC1=CC=C2N(C(C)=O)C=C(CCN)C2=C1 YJPIGAIKUZMOQA-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- DRLFMBDRBRZALE-UHFFFAOYSA-N melatonin Chemical compound COC1=CC=C2NC=C(CCNC(C)=O)C2=C1 DRLFMBDRBRZALE-UHFFFAOYSA-N 0.000 description 1
- 229960003987 melatonin Drugs 0.000 description 1
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an office intelligent illumination control system with healthy light, which comprises a data storage module, a clock module, a controller, a PWM (pulse-width modulation) signal adjusting module, a driving module and illumination equipment, wherein the data storage module is used for storing data; the lighting equipment consists of red, green and blue LEDs and white LEDs, and the mixed color generates white light with adjustable rhythm action efficiency; the data storage module stores LED photoelectric parameters required in different time periods, and the clock module controls the LED photoelectric parameters in a timing mode; the controller sends a control instruction to the PWM signal adjusting module according to the obtained LED photoelectric parameters; the PWM signal adjusting module adjusts the duty ratio of the PWM signal according to the control instruction; the driving module receives the PWM signal and sends a control instruction to the lighting equipment; the lighting equipment emits white light with different rhythm effect efficiencies according to the control instruction; the light scene self-adjusting device has the advantages that self-adjustment of light scenes in different working periods can be achieved, the most suitable light is provided for office workers, the office workers are in the best working state, and the working efficiency is effectively improved.
Description
Technical Field
The invention relates to an illumination control technology, in particular to an office intelligent illumination control system with healthy light.
Background
Modern buildings have higher and higher requirements for lighting, and not only are comfortable lighting environments required to be provided, but also different lighting effects are required in different occasions. Conventional lighting controls mostly require manual control. In recent years, intelligent buildings are developed rapidly, and particularly, the intelligent buildings are developed more rapidly in the fields of network, monitoring, office, communication automation and the like. The intelligent lighting control system is an important aspect of intelligent buildings, and aims to enable the lighting system to intelligently adjust the lighting state according to the needs of people and create an intelligent and comfortable light environment. At present, the visual influence of light on people is mainly adjusted by intelligently controlling the light environment, and the intelligent automatic dimming system is mainly used for adjusting the brightness of lamplight according to weather change, different places and the number of people. In fact, light is not only able to meet the visual needs of humans, but is also the most important circadian rhythm regulator. When a person is illuminated, the biological clock system in the person will direct and initiate a chain amplification process from the light signal to the physiological signal, thereby modulating the person's behavior and physiological activity, see light and lighting, 2005, 29(1):31-33. Some foreign studies characterize the effect of Light on the circadian rhythms of the human body with regard to rhythm effect efficiency, see Oh J H, Yang S J, Do Y R.Healthy, natural, effective and reliable lighting: four-package white LEDs for optimizing the rhythm effect, color quality and vision performance [ J ]. Light: Science & Applications,2014,3: e141 (healthy, natural, efficiently adjustable lighting: four-primary-color white LEDs that optimize rhythm effect, color quality and vision performance, Light: Science and application journal [ J ]. and Zaussas A, Vaicekauskas R.Tunabiady of the Science activity of the physiological system of Light, Physics application, Lentic application, Biometrics, 041107 for regulation of the physiological rhythm effect of the physiological system of the human body (see: Biochem J H J.: application, Physics application, Lentics 2015,106). The higher the rhythm action efficiency of the light source, the more obvious the non-visual biological effect of the light source on the human body, the more sober the human body, and the corresponding improvement of the learning and working efficiency.
In some applications, the non-visual biological effect of a light source on a person is of great importance, such as office lighting. At the fast pace today, office staff are busy with various busy works every day, and the light with high rhythm action efficiency can stimulate the brain, enhance the memory, shorten the response time and improve the work efficiency of the office staff. Therefore, there is a need to develop an office intelligent lighting control system based on the non-visual biological effect requirement of human body. At present, two primary colors white light LEDs for common illumination, namely white light LEDs with mixed colors of fluorescent powder excited by blue light chips, do not consider index performance of light health.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an office intelligent lighting control system with healthy light, which can realize self-adjustment of light scenes in different working periods based on the requirement of human body non-visual biological effect, provide most suitable light for office staff, enable the office staff to be in the best working state and effectively improve the working efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: an office intelligent illumination control system with healthy light is characterized by comprising a data storage module, a clock module, a controller, a PWM signal adjusting module, a driving module and illumination equipment; the lighting equipment consists of red, green, blue and white LEDs, and the mixed color generates white light with adjustable rhythm effect efficiency so as to meet the requirements of different light scenes; the data storage module stores LED photoelectric parameters required in different time periods, and the clock module controls the LED photoelectric parameters required in different time periods in a timing mode; the controller sends a control instruction to the PWM signal adjusting module according to the LED photoelectric parameters required at different time periods obtained from the data storage module and the clock module; the PWM signal adjusting module adjusts the duty ratio of the PWM signal according to the received control instruction so as to adjust the light intensity output proportion of the red, green, blue and white LEDs; the driving module receives the PWM signal and sends a control instruction to the lighting equipment; the lighting equipment sends white light with different rhythm effect efficiencies according to the received control instruction so as to improve the working efficiency of office staff.
The lighting equipment is composed of more than four LED light sources with different wavelengths, namely red, green, blue and white LEDs, and the LED light sources are mixed to generate white light with adjustable required color temperature and rhythm effect efficiency.
The LED photoelectric parameters required in different time periods stored by the data storage module are obtained by optimally calculating the proportion of red, green, blue and white LEDs by adopting a colorimetry method.
The LED photoelectric parameters comprise optical parameters and electrical parameters, the optical parameters comprise color temperature, color rendering index, energy ratio of red, green and blue LEDs and energy ratio of white LEDs, the electrical parameters comprise PWM values of modules consisting of the red, green and blue LEDs and the white LEDs, and the range of the PWM values is 0-255.
The clock module comprises a timing unit, and the timing unit carries out timing control on the LED photoelectric parameters required at different time periods.
The driving module comprises a driving circuit for driving the lighting device to work.
Compared with the prior art, the invention has the advantages that:
1) the invention uses more than four kinds of LED light sources with different wavelengths of red, green, blue and white LEDs to generate white light with adjustable color temperature and rhythm effect efficiency, so that the lighting equipment consisting of the red, green, blue and white LEDs can emit the white light with different rhythm effect efficiencies in different time periods for office lighting, namely, the self-adjustment of light scenes in different working time periods can be realized, the physiological rhythm of a human body can be effectively adjusted, the most suitable light is provided for office staff, the office staff is in the best working state, and the working efficiency is effectively improved.
2) According to the intelligent lighting control system, different scene modules can be preset, the controller can intelligently control the lighting equipment according to the LED photoelectric parameters required at different time periods, and the lighting equipment is fully automated, so that under the condition that people do not need manual control, the intelligent lighting control system for the office can change in real time according to the time of day, and provides the most suitable light for office personnel.
Drawings
FIG. 1 is a schematic diagram of the structure of an intelligent office lighting control system according to the present invention;
FIG. 2 is a schematic diagram of white light with adjustable desired color temperature and rhythm effect efficiency generated by color mixing of four LED light sources with different wavelengths, namely red, green, blue and white LEDs, in a chromaticity space;
fig. 3 is a schematic diagram of rhythm action efficiency of the lighting device at different time periods when the color temperature of the office intelligent lighting control system is 4000K.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The invention provides an office intelligent illumination control system with healthy light, which comprises a data storage module 1, a clock module 2, a controller 3, a PWM (pulse-width modulation) signal adjusting module 4, a driving module 5 and illumination equipment 6, wherein the input end of the controller 3 is connected with the data storage module 1 and the clock module 2, the output end of the controller 3 is connected with the input end of the PWM signal adjusting module 4, the output end of the PWM signal adjusting module 4 is connected with the input end of the driving module 5, and the output end of the driving module 5 is connected with the illumination equipment 6, as shown in figure 1.
In this embodiment, the lighting device 6 is composed of more than four kinds of LED light sources with different wavelengths, red, green, blue and white LEDs, and the above-mentioned LED light sources are mixed to generate white light with adjustable color temperature and rhythm effect efficiency, so as to meet the requirements of different light scenes. The method comprises the steps of performing optimized calculation on the proportion of red, green, blue and white LEDs by adopting a known colorimetry method to obtain LED photoelectric parameters required in different time periods, wherein the LED photoelectric parameters comprise optical parameters and electrical parameters, the optical parameters comprise color temperature, color rendering index and the energy proportion of the red, green, blue and white LEDs, the electrical parameters comprise PWM values of a module consisting of the red, green, blue and white LEDs, and the range of the PWM values is 0-255. In practical operation, when mixing colors with four kinds of LED light sources with different wavelengths, namely red, green, blue and white LEDs, various proportions can be mixed to generate white light meeting color temperature and color coordinate points in a chromaticity space, as shown in FIG. 2. For each mixture ratio, the specific light intensity output ratios of the red, green, blue and white light LEDs are different, and the spectral power distribution of the lighting device 6 obtained after color mixing is also different, namely, metamerism, so that the lighting device 6 after color mixing has different rhythm action efficiency under the condition that the color temperature and color coordinate points are the same.
In this embodiment, the data storage module 1 stores LED photoelectric parameters required at different time periods, and the clock module 2 performs timing control on the LED photoelectric parameters required at different time periods; the controller 3 sends a control instruction to the PWM signal adjusting module 4 according to the LED photoelectric parameters required at different time periods obtained from the data storage module 1 and the clock module 2; the PWM signal adjusting module 4 adjusts the duty ratio of the PWM signal according to the received control instruction so as to adjust the light intensity output proportion of the red, green, blue and white LEDs; the driving module 5 receives the PWM signal and sends a control instruction to the lighting equipment 6; the lighting device 6 emits white light with different rhythm effect efficiencies according to the received control instruction so as to improve the working efficiency of office personnel, and simultaneously, the color temperature of the lamp tip is kept unchanged, so that the visual effect of people is not influenced.
Fig. 3 is a schematic diagram showing the rhythm action efficiency of the lighting device 6 at different time periods when the color temperature of the office intelligent lighting control system of the present invention is 4000K. In the 8:00-10:00 morning, people have a rest at night, the brains are more clear, the memory is strong, special illumination is not needed to adjust the physiological rhythm of the human body, the normal mode illumination is used, and the rhythm action efficiency of the illumination equipment 6 is at the same level as that of natural light. In the period of 10:00-12:00, because the brain is slightly tired after working for two hours, the rhythm action efficiency of the lighting device 6 needs to be improved, so that the brain is clear and continues to work efficiently. At noon, 12:00-13:00, the energy of human body is consumed, and after lunch, the human body should have a rest properly to recover the body, at this time, the illumination enters a lunch break mode, the rhythm action efficiency of the illumination device 6 is lower than the normal level, and the light brightness is also dimmed properly. At 13:00 pm, the human body is excited in the morning, the energy begins to fade, the body enters a low tide stage, the reaction becomes slow, the body is tired, the working efficiency is low, at the moment, the illumination enters a vibration raising mode, illumination is carried out by the illumination device 6 with high rhythm action efficiency, the melatonin secretion can be inhibited, the brain is stimulated, and the working efficiency is improved. After 15:00, the human body starts to be active under the control of the own biological clock, but the brain is tired after working for 2 hours, so the rhythm action efficiency of the lighting device 6 is a little higher than that in the normal condition. After 17:00 hours in the afternoon, the illumination enters a rest mode, and the brightness of the lamp light is properly dimmed. Some office workers may be working overtime at 18:00 pm, acting on the illumination more efficiently than in the normal mode with a rhythm, so that they can continue to work efficiently.
The intelligent office illumination control system can emit illumination scenes with different rhythm effect efficiencies according to real-time change of daytime time so as to adapt to the change rule of human body physiological rhythm and improve the working efficiency of a working time period; the lighting device 6 in the office intelligent lighting control system of the present invention operates in a fully automatic state.
In the present embodiment, the data storage module 1 may employ an existing conventional memory; the clock module 2 comprises a timing unit, the timing unit carries out timing control on LED photoelectric parameters required in different time periods, and the timing unit adopts the prior art; the controller 3 adopts the existing control equipment, and the conventional technology is adopted for sending a control instruction to the PWM signal adjusting module 4 according to the acquired information; the PWM signal adjusting module 4 mainly adjusts the duty ratio of the PWM signal by adopting the prior art; the driving module 5 includes a driving circuit for driving the lighting device 6 to operate, and the driving circuit adopts an existing LED driving circuit.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011108221.2A CN112188673A (en) | 2020-10-16 | 2020-10-16 | Office intelligent lighting control system with healthy light |
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| CN202011108221.2A CN112188673A (en) | 2020-10-16 | 2020-10-16 | Office intelligent lighting control system with healthy light |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112911753A (en) * | 2021-02-22 | 2021-06-04 | 江苏新广联光电股份有限公司 | Indoor lighting system and method applied to light color control |
| CN114173446A (en) * | 2021-12-06 | 2022-03-11 | 上海亚明照明有限公司 | Health lighting system, method and storage medium |
| CN114189963A (en) * | 2021-12-10 | 2022-03-15 | 北京翌光科技有限公司 | Multi-primary color light source module for adjusting biological rhythm, illumination system and illumination method |
| CN114241934A (en) * | 2021-12-15 | 2022-03-25 | 同济大学 | A lighting fixture for improving mood and rhythm of office workers |
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