CN215187481U - Indoor myopia prevention and control lighting system - Google Patents
Indoor myopia prevention and control lighting system Download PDFInfo
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- CN215187481U CN215187481U CN202121315687.XU CN202121315687U CN215187481U CN 215187481 U CN215187481 U CN 215187481U CN 202121315687 U CN202121315687 U CN 202121315687U CN 215187481 U CN215187481 U CN 215187481U
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Abstract
The utility model discloses an indoor myopia prevention and control lighting system. Partitioning the whole indoor space according to the size of the indoor space and actual regulation and control requirements, wherein each region is provided with a color temperature monitoring part, an illumination monitoring part and a lighting part corresponding to each region; the color temperature monitoring component and the illumination monitoring component in each area monitor the ambient light intensity and the color temperature of the area, light signals are converted into electric signals and then are transmitted to the controller, the controller sends control signals to the illumination component in each area again, light supplement and adjustment of each area are carried out, the light of the whole indoor space can be maintained to be always under the set illumination and color temperature, the indoor light is adjusted along with the change of natural light, the optimal artificial illumination environment is achieved, and the purpose of preventing and controlling myopia is achieved.
Description
Technical Field
The utility model relates to an lighting system technical field especially relates to an indoor myopia prevention and control lighting system.
Background
Myopia is one of the major public health problems faced by China, and the prevalence rate of myopia of teenagers in China is in the top of the world and is also rising year by year.
The classroom is the main place of daily study life of middle and primary school students, and the illumination in the classroom directly concerns their eye and physical and mental health problem, and at present school classroom all is static illumination, and the light keeps same illuminance all the time, and indoor illumination uniformity is inconsistent, and can not make the adjustment in combination with human vision photobiological effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an indoor prevention and control near-sighted lighting system has solved the lighting lamp among the prior art and has kept same kind of illuminance throughout, and the inconsistent technical problem of indoor illumination degree of consistency, has realized that the visual photobiological effect that can combine the human body makes the adjustment, the technological effect of prevention myopia.
The utility model provides an indoor myopia prevention and control lighting system, include: the device comprises a color temperature monitoring component, an illumination monitoring component, a lighting component, an overvoltage protection circuit, a rectifying circuit, a power supply switching circuit, a standby power supply and a controller; the indoor space is composed of a plurality of subareas; the color temperature monitoring part, the illuminance monitoring part and the lighting part are arranged in each subarea; the illumination end of the illumination component of each subarea faces to the monitoring areas of the color temperature monitoring component and the illumination monitoring component of the subarea where the illumination end of the illumination component of each subarea is located; the signal output ends of the color temperature monitoring component and the illumination monitoring component are in communication connection with the signal input end of the controller, and the signal output end of the controller is in communication connection with the signal input end of the illumination component; the current input end of the overvoltage protection circuit is connected with a main power supply, and the current output end of the overvoltage protection circuit is electrically connected with the current input end of the rectifying circuit; the current output end of the rectifying circuit is electrically connected with the first current input end of the power supply switching circuit; the second current input end of the power supply switching circuit is connected with the standby power supply, and the current output end of the power supply switching circuit is electrically connected with the color temperature monitoring part, the illumination monitoring part, the lighting part and the current input end of the controller.
Further, the power switching circuit includes: the power supply comprises a first power switch switching chip, a second power switch switching chip, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; the input end and the enabling end of the first power switch switching chip are electrically connected with the current output end of the rectifying circuit; the input end and the enabling end of the second power switch switching chip are both connected with the output end of the standby power supply; the output end of the first power switch switching chip is connected with the output end of the second power switch switching chip and is electrically connected with the color temperature monitoring part, the illumination monitoring part, the lighting part and the current input end of the controller; the first end of the first capacitor is connected between the current output end of the rectifying circuit and the input end of the first power switch switching chip, and the second end of the first capacitor is grounded; the first end of the second capacitor is connected with the output end of the first power switch switching chip, and the second end of the second capacitor is grounded; the first end of the third capacitor is connected between the output end of the standby power supply and the input end of the second power switch switching chip, and the second end of the third capacitor is grounded; and the first end of the fourth capacitor is connected with the output end of the second power switch switching chip, and the second end of the fourth capacitor is grounded.
Further, still include: a first diode and a second diode; the anode of the first diode is electrically connected with the current output end of the rectifying circuit, and the cathode of the first diode is electrically connected with the input end and the enabling end of the first power switch switching chip; the anode of the second diode is electrically connected with the output end of the standby power supply, and the cathode of the second diode is electrically connected with the input end and the enabling end of the second power switch switching chip.
Further, the overvoltage protection circuit includes: fuses, piezoresistors and thermistors; the first end of the fuse is connected with the main power supply, and the second end of the fuse is connected with the first end of the piezoresistor in common and is electrically connected with the first end of the thermistor; the second end of the piezoresistor is also connected with the main power supply; and the second end of the thermistor is electrically connected with the current input end of the rectifying circuit.
Further, still include: a filter circuit; the current input end of the filter circuit is electrically connected with the current output end of the power supply switching circuit, and the current output end of the filter circuit is electrically connected with the color temperature monitoring part, the illumination monitoring part, the lighting part and the current input end of the controller.
Further, the filter circuit includes: the third diode, the first resistor, the second resistor, the fifth capacitor, the sixth capacitor, the third resistor and the seventh capacitor; an anode of the third diode, a first end of the first resistor and a first end of the second resistor are connected in common and are electrically connected with a current output end of the power switching circuit, a second end of the first resistor and a second end of the second resistor are electrically connected with a first end of the fifth capacitor, and a cathode of the third diode is connected in common with a second end of the fifth capacitor and is electrically connected with a first end of the sixth capacitor, a first end of the third resistor and a first end of the seventh capacitor; and the second end of the sixth capacitor, the second end of the third resistor and the second end of the seventh capacitor are connected in common and electrically connected with the color temperature monitoring part, the illuminance monitoring part, the lighting part and the current input end of the controller.
Further, the controller is a C8051F330 eight-bit microcontroller.
The utility model discloses in the one or more technical scheme that provides, following technological effect or advantage have at least:
partitioning the whole indoor space according to the size of the indoor space and actual regulation and control requirements, wherein each region is provided with a color temperature monitoring part, an illumination monitoring part and a lighting part corresponding to each region; the color temperature monitoring component and the illumination monitoring component in each area monitor the ambient light intensity and the color temperature of the area, light signals are converted into electric signals and then are transmitted to the controller, the controller sends control signals to the illumination component in each area again, light supplement and adjustment of each area are carried out, the light of the whole indoor space can be maintained to be always under the set illumination and color temperature, the indoor light is adjusted along with the change of natural light, the optimal artificial illumination environment is achieved, and the purpose of preventing and controlling myopia is achieved.
Drawings
Fig. 1 is a block diagram illustrating a structure of an indoor lighting system for preventing and controlling myopia according to an embodiment of the present invention;
fig. 2 is a schematic layout view of an indoor lighting system for preventing and controlling myopia according to an embodiment of the present invention.
Detailed Description
The embodiment of the utility model provides an indoor myopia prevention and control's lighting system has solved the light among the prior art and has kept same illuminance throughout, and the inconsistent technical problem of indoor illumination degree of consistency, has realized that the visual photobiological effect that can combine the human body makes the adjustment, the technological effect of prevention myopia.
The embodiment of the utility model provides an in technical scheme for solving above-mentioned technical problem, the general thinking is as follows:
partitioning the whole indoor space according to the size of the indoor space and actual regulation and control requirements, wherein each region is provided with a color temperature monitoring part, an illumination monitoring part and a lighting part corresponding to each region; the color temperature monitoring component and the illumination monitoring component in each area monitor the ambient light intensity and the color temperature of the area, light signals are converted into electric signals and then are transmitted to the controller, the controller sends control signals to the illumination component in each area again, light supplement and adjustment of each area are carried out, the light of the whole indoor space can be maintained to be always under the set illumination and color temperature, the indoor light is adjusted along with the change of natural light, the optimal artificial illumination environment is achieved, and the purpose of preventing and controlling myopia is achieved.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
Referring to fig. 1 and fig. 2, the embodiment of the present invention provides an indoor lighting system for preventing and controlling myopia, including: the device comprises a color temperature monitoring component, an illumination monitoring component, a lighting component, an overvoltage protection circuit, a rectifying circuit, a power supply switching circuit, a standby power supply and a controller; the indoor space is composed of a plurality of subareas; each subarea is provided with a color temperature monitoring component, an illumination monitoring component and an illuminating component; the illumination end of the illumination component of each subarea faces to the monitoring area of the color temperature monitoring component and the illumination monitoring component of the subarea where the illumination end of the illumination component of each subarea is located; the signal output ends of the color temperature monitoring component and the illumination monitoring component are in communication connection with the signal input end of the controller, and the signal output end of the controller is in communication connection with the signal input end of the illumination component; the current input end of the overvoltage protection circuit is connected with the main power supply, and the current output end of the overvoltage protection circuit is electrically connected with the current input end of the rectifying circuit; the current output end of the rectifying circuit is electrically connected with the first current input end of the power supply switching circuit; and a second current input end of the power supply switching circuit is connected with a standby power supply, and a current output end of the power supply switching circuit is electrically connected with current input ends of the color temperature monitoring component, the illumination monitoring component, the lighting component and the controller. Specifically, the entire indoor space is uniformly divided into 6 × 6 or 8 × 8 areas, each of which is provided with a corresponding color temperature monitoring part, illuminance monitoring part, and lighting part.
Specifically explaining the structure of the power supply switching circuit, the power supply switching circuit includes: the power supply comprises a first power switch switching chip, a second power switch switching chip, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; the input end and the enabling end of the first power switch switching chip are electrically connected with the current output end of the rectifying circuit; the input end and the enabling end of the second power switch switching chip are both connected with the output end of the standby power supply; the output end of the first power switch switching chip is connected with the output end of the second power switch switching chip and is electrically connected with the color temperature monitoring part, the illumination monitoring part, the lighting part and the current input end of the controller; the first end of the first capacitor is connected between the current output end of the rectifying circuit and the input end of the first power switch switching chip, and the second end of the first capacitor is grounded; the first end of the second capacitor is connected with the output end of the first power switch switching chip, and the second end of the second capacitor is grounded; the first end of the third capacitor is connected between the output end of the standby power supply and the input end of the second power switch switching chip, and the second end of the third capacitor is grounded; the first end of the fourth capacitor is connected with the output end of the second power switch switching chip, and the second end of the fourth capacitor is grounded.
In order to realize the function of preventing reverse connection of input, thereby protecting the circuit, still include: a first diode and a second diode; the anode of the first diode is electrically connected with the current output end of the rectifying circuit, and the cathode of the first diode is electrically connected with the input end and the enabling end of the first power switch switching chip; the anode of the second diode is electrically connected with the output end of the standby power supply, and the cathode of the second diode is electrically connected with the input end and the enabling end of the second power switch switching chip.
To explain the structure of the overvoltage protection circuit in detail, the overvoltage protection circuit includes: fuses, piezoresistors and thermistors; the first end of the fuse is connected with a main power supply, and the second end of the fuse is connected with the first end of the piezoresistor and electrically connected with the first end of the thermistor; the second end of the voltage dependent resistor is also connected with a main power supply; the second end of the thermistor is electrically connected with the current input end of the rectifying circuit. When the input 220V alternating current commercial power is within the preset voltage range, the resistance value of the voltage dependent resistor is large, and the fuse cannot be fused. When the input 220V alternating current commercial power is higher than a preset voltage value, the voltage dependent resistor is conducted instantly, all current flows through the voltage dependent resistor, and the fuse is fused to protect the power supply circuit. The thermistor can inhibit surge current generated at the moment of starting the circuit, and then through the continuous action of the current, the reduction of the resistance value of the thermistor becomes very small, and the normal working current of the power supply circuit cannot be influenced, so that the power supply circuit is further protected.
In order to filter the charging voltage to eliminate the noise signal in the charging voltage, the method further includes: a filter circuit; the current input end of the filter circuit is electrically connected with the current output end of the power supply switching circuit, and the current output end of the filter circuit is electrically connected with the current input ends of the color temperature monitoring component, the illumination monitoring component, the lighting component and the controller.
Specifically explaining the structure of the filter circuit, the filter circuit includes: the third diode, the first resistor, the second resistor, the fifth capacitor, the sixth capacitor, the third resistor and the seventh capacitor; the anode of the third diode, the first end of the first resistor and the first end of the second resistor are connected in common and are electrically connected with the current output end of the power supply switching circuit, the second end of the first resistor and the second end of the second resistor are electrically connected with the first end of the fifth capacitor, and the cathode of the third diode is connected in common with the second end of the fifth capacitor and is electrically connected with the first end of the sixth capacitor, the first end of the third resistor and the first end of the seventh capacitor; and the second end of the sixth capacitor, the second end of the third resistor and the second end of the seventh capacitor are connected in common and electrically connected with the current input ends of the color temperature monitoring part, the illuminance monitoring part, the lighting part and the controller.
In this embodiment, the color temperature monitoring unit and the illuminance monitoring unit are four-channel color sensors TCS3414CS produced by AMS, which can accurately measure the chromaticity of light with different intensities and output the light with 16-bit resolution. The device has a cmos integrated circuit with 8 x 2 array filtering photodiodes, analog to digital converters and control functions, with 4 red filters, 4 green filters, 4 blue filters and 4 no filters in 16 photodiodes. The corresponding color temperature and illumination value can be converted by matrix operation on the corresponding numerical value of the red, green and blue three-channel integral, and the corresponding color temperature and illumination value can be used as the parameter for adjusting the color temperature and the illumination. The lighting component is composed of a multi-chip LED product Xlamp MC-E of Cree. The LED single particle is internally packaged with four LED chips with different colors, namely red light, green light, blue light and white light, the single maximum input power is up to 2W, and the luminous intensity can be independently adjusted. The controller is a C8051F330 eight-bit microcontroller of Silicon Laboratories, and the controller generates four independent PWM signals, and each group controls the light output of the LEDs with different colors respectively. The PWM frequency is set to 1kHz, which is not noticeable to the human eye, and the duty ratio value is 8-bit data. The LED driving circuit adopts a dual-channel linear LED driving chip AL1792 of Diodes. A total of 4 multi-chip LEDs are used, and LEDs with the same color in each LED chip are connected in series and then connected to one channel of the driving chip. The resistor is designed and selected to be X omega, and the maximum output current of each path of LED is 500 mA. Because the conduction voltage drops of the four color chips are respectively 2.3V (R), 3.7V (G), 3.5V (B) and 3.5V (W), the maximum output power of a single system is 26W, and the controller generates different duty ratio combinations to control the output. The standby power supply is a storage battery. The model of the first power switch switching chip and the model of the second power switch switching chip are both HX 9001.
To the utility model provides an indoor myopia prevention and control's lighting system's theory of operation specifically explains:
the color temperature monitoring component and the illumination monitoring component of each subarea in the classroom respectively monitor the color temperature and the illumination parameters of the subarea, and send the monitored color temperature and the monitored illumination parameters to the controller. The controller compares the received color temperature and illumination parameters of each subarea with preset reference values, so as to send adjusting signals to the lighting components of each subarea, and controls the lighting components of each subarea to adjust the lighting light of the subarea, so that the color temperature and the illumination of each subarea in the indoor space meet the requirements. Specifically, the spectral data generated when each LED in the LED driving circuit operates independently, that is, the spectral data generated by the light of a single color, may be measured first. Under the condition that the total output luminous flux is the same, the color rendering index and the luminous efficiency can reach the optimal duty ratio combination under the common color temperatures, and the data are stored in the controller. When the system operates, the controller can compare the monitored light condition with the target lighting condition, firstly adjusts and controls the color temperature, each channel strictly performs light supplement according to the measured proportion, and then the same side of each channel is adjusted to control the illumination. In addition, through setting up power supply switching circuit and stand-by power supply, when the main power source outage, can switch to the stand-by power supply through power supply switching circuit to guarantee that the colour temperature and the illuminance of each subregion still satisfy the requirement in the classroom under the power failure state, and then guaranteed that teaching work still can normally go on and still can effectively protect teachers and students' eyes under the power failure state.
Technical effects
1. Partitioning the whole indoor space according to the size of the indoor space and actual regulation and control requirements, wherein each region is provided with a color temperature monitoring part, an illumination monitoring part and a lighting part corresponding to each region; the color temperature monitoring component and the illumination monitoring component in each area monitor the ambient light intensity and the color temperature of the area, light signals are converted into electric signals and then are transmitted to the controller, the controller sends control signals to the illumination component in each area again, light supplement and adjustment of each area are carried out, the light of the whole indoor space can be maintained to be always under the set illumination and color temperature, the indoor light is adjusted along with the change of natural light, the optimal artificial illumination environment is achieved, and the purpose of preventing and controlling myopia is achieved.
2. Through the use of the power supply switching circuit and the standby power supply, the color temperature and the illumination of each subarea in the indoor space can still meet the requirements in the power failure state.
3. Through the use of the first diode and the second diode, an input reverse-connection prevention protection function can be realized, so that a circuit is protected.
4. The power supply circuit can be further protected by using the fuse, the varistor and the thermistor.
5. Through the use of the filter circuit, the charging voltage can be subjected to filter processing so as to eliminate clutter signals in the charging voltage.
The embodiment of the utility model provides a through reasonable division classroom region, change the law with the nature light and combine with current classroom light ambient standard, set for out classroom light ambient lighting parameter based on the photobiological effect, monitor and the environment light filling every subregion to all control the lighting parameter in each region in the classroom in ideal range, realized scene lighting system's nimble switching, can be to the required colour temperature and the illuminance of different activities, make corresponding parameter adjustment automatically, if: when the color temperature and the illumination of a natural light source are low in the morning, evening or rainy days, the natural light source reaches the standard by the supplement of an artificial light source; when the color temperature and the illumination of the natural light source are higher in the noon or the sunny state, the supplement of the artificial light source is reduced to reach the standard; and after sunset and at night, the color temperature, the illumination and the artificial light source for supplementing the infrared spectrum are used to achieve the standard of preventing and controlling myopia during night learning.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. An indoor myopia prevention and control lighting system, comprising: the device comprises a color temperature monitoring component, an illumination monitoring component, a lighting component, an overvoltage protection circuit, a rectifying circuit, a power supply switching circuit, a standby power supply and a controller; the indoor space is composed of a plurality of subareas; the color temperature monitoring part, the illuminance monitoring part and the lighting part are arranged in each subarea; the illumination end of the illumination component of each subarea faces to the monitoring areas of the color temperature monitoring component and the illumination monitoring component of the subarea where the illumination end of the illumination component of each subarea is located; the signal output ends of the color temperature monitoring component and the illumination monitoring component are in communication connection with the signal input end of the controller, and the signal output end of the controller is in communication connection with the signal input end of the illumination component; the current input end of the overvoltage protection circuit is connected with a main power supply, and the current output end of the overvoltage protection circuit is electrically connected with the current input end of the rectifying circuit; the current output end of the rectifying circuit is electrically connected with the first current input end of the power supply switching circuit; the second current input end of the power supply switching circuit is connected with the standby power supply, and the current output end of the power supply switching circuit is electrically connected with the color temperature monitoring part, the illumination monitoring part, the lighting part and the current input end of the controller.
2. The indoor myopia prevention and control lighting system of claim 1, wherein the power switching circuit comprises: the power supply comprises a first power switch switching chip, a second power switch switching chip, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; the input end and the enabling end of the first power switch switching chip are electrically connected with the current output end of the rectifying circuit; the input end and the enabling end of the second power switch switching chip are both connected with the output end of the standby power supply; the output end of the first power switch switching chip is connected with the output end of the second power switch switching chip and is electrically connected with the color temperature monitoring part, the illumination monitoring part, the lighting part and the current input end of the controller; the first end of the first capacitor is connected between the current output end of the rectifying circuit and the input end of the first power switch switching chip, and the second end of the first capacitor is grounded; the first end of the second capacitor is connected with the output end of the first power switch switching chip, and the second end of the second capacitor is grounded; the first end of the third capacitor is connected between the output end of the standby power supply and the input end of the second power switch switching chip, and the second end of the third capacitor is grounded; and the first end of the fourth capacitor is connected with the output end of the second power switch switching chip, and the second end of the fourth capacitor is grounded.
3. The indoor myopia prevention and control lighting system of claim 2, further comprising: a first diode and a second diode; the anode of the first diode is electrically connected with the current output end of the rectifying circuit, and the cathode of the first diode is electrically connected with the input end and the enabling end of the first power switch switching chip; the anode of the second diode is electrically connected with the output end of the standby power supply, and the cathode of the second diode is electrically connected with the input end and the enabling end of the second power switch switching chip.
4. The indoor myopia prevention and control lighting system of claim 1, wherein the overvoltage protection circuit comprises: fuses, piezoresistors and thermistors; the first end of the fuse is connected with the main power supply, and the second end of the fuse is connected with the first end of the piezoresistor in common and is electrically connected with the first end of the thermistor; the second end of the piezoresistor is also connected with the main power supply; and the second end of the thermistor is electrically connected with the current input end of the rectifying circuit.
5. The indoor myopia prevention and control lighting system of claim 1, further comprising: a filter circuit; the current input end of the filter circuit is electrically connected with the current output end of the power supply switching circuit, and the current output end of the filter circuit is electrically connected with the color temperature monitoring part, the illumination monitoring part, the lighting part and the current input end of the controller.
6. The indoor myopia prevention and control lighting system of claim 5, wherein the filter circuit comprises: the third diode, the first resistor, the second resistor, the fifth capacitor, the sixth capacitor, the third resistor and the seventh capacitor; an anode of the third diode, a first end of the first resistor and a first end of the second resistor are connected in common and are electrically connected with a current output end of the power switching circuit, a second end of the first resistor and a second end of the second resistor are electrically connected with a first end of the fifth capacitor, and a cathode of the third diode is connected in common with a second end of the fifth capacitor and is electrically connected with a first end of the sixth capacitor, a first end of the third resistor and a first end of the seventh capacitor; and the second end of the sixth capacitor, the second end of the third resistor and the second end of the seventh capacitor are connected in common and electrically connected with the color temperature monitoring part, the illuminance monitoring part, the lighting part and the current input end of the controller.
7. The indoor myopia prevention and control lighting system of any one of claims 1-6, wherein the controller is a C8051F330 eight-bit microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121315687.XU CN215187481U (en) | 2021-06-11 | 2021-06-11 | Indoor myopia prevention and control lighting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121315687.XU CN215187481U (en) | 2021-06-11 | 2021-06-11 | Indoor myopia prevention and control lighting system |
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| Publication Number | Publication Date |
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| CN215187481U true CN215187481U (en) | 2021-12-14 |
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| CN202121315687.XU Expired - Fee Related CN215187481U (en) | 2021-06-11 | 2021-06-11 | Indoor myopia prevention and control lighting system |
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2021
- 2021-06-11 CN CN202121315687.XU patent/CN215187481U/en not_active Expired - Fee Related
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Granted publication date: 20211214 |