CN109640442A - A kind of classroom luminous environment control system based on NB-IOT - Google Patents
A kind of classroom luminous environment control system based on NB-IOT Download PDFInfo
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- CN109640442A CN109640442A CN201811530990.4A CN201811530990A CN109640442A CN 109640442 A CN109640442 A CN 109640442A CN 201811530990 A CN201811530990 A CN 201811530990A CN 109640442 A CN109640442 A CN 109640442A
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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
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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
Abstract
The classroom luminous environment control system based on NB-IOT that the invention discloses a kind of, it includes equipment end, cloud platform and ipc monitor end, the luminous environment collection terminal is made of main control chip, NB-IOT module, camera module, for obtaining the luminous environment information of classroom entirety, the brightness value of indoor each LED is calculated by image procossing and is sent to host computer；The LED control terminal is made of main control chip, NB-IOT module, LED and LED constant current drive module, is controlled for receiving control signal LED luminance；The cloud platform is as the communication relay between ipc monitor end and equipment end；The ipc monitor end is used to receive the data that collection terminal is sent and is transmitted to control terminal, while Backup Data by cloud platform.The system can be distributed according to the application scenarios and room brilliancy in classroom calculates the brightness for adjusting each region LED in real time, learns to provide a health suitable Interior Illumination Environment to student.
Description
Technical field
The present invention relates to Internet communication technology field, specifically a kind of classroom luminous environment based on NB-IOT controls system
System.
Background technique
Classroom illumination environment is most important to the Vision Health and learning efficiency of student, and uncomfortable illumination will lead to human eye
It frequently excessively adjusts, cause muscular tone, visual fatigue, while also will cause the decline of learning efficiency, influencing the spirit of student
State.
Current classroom is nearly all using the fluorescent lighting fixture illumination manually controlled, and can only manually control lamps and lanterns is bright dark two
Kind state.Indoor lamp brightness can not be accordingly adjusted when external environmental light changes, reduce unnecessary energy loss；In classroom
When the illumination unevenness of each region, it can not also change the lamp brightness of each region automatically, to provide uniform room lighting；
When playing projector at school, traditional situation is the lamp that can close classroom first half region, so will cause student viewing projection
Background luminance and the difference in brightness of projector are excessive when instrument, aggravate visual fatigue.Therefore one is conceived to student's Vision Health
Intelligent lighting control system is now urgently needed.And in the prior art, typically just illumination is measured simply by photo resistance
Degree then carries out negative-feedback regu- lation to lamp brightness, or artificially adjusts lamps and lanterns in such a way that upper computer end manually controls
Brightness.
Most Internet of Things intelligent lighting control systems is all based on the local area networks such as GPRS or wifi, bluetooth, zigbee now
Although mode, GPRS are that can directly be connected to internet based on Cellular Networks, but its is at high cost, flow rate are expensive, and power consumption is big；
Although local net mode cost is relatively cheap, it needs the mode of at least double bounce that can just be connected to net, i.e., also needs by one
A additional aggregation gateway networks, and disadvantage is larger on exploitation, installation maintenance and hardware cost.
Summary of the invention
Goal of the invention: It is an object of the present invention to solve the deficiency of the existing technology and provide a kind of religions based on NB-IOT
Room luminous environment control system, the system have the ability that more extensively covering magnanimity connects, more low-power consumption and lower module cost,
The accurate luminous environment information in classroom can be acquired in real time, is detected by the judgement to multiple parameters, and fusion calculation is most suitable out
LED luminance value, and each LED luminance value is sent to cloud platform by NB-IOT communication, it is then sent to ipc monitor end,
Host computer stores display brightness information, and LED luminance control signal is sent to LED control terminal to change each LED lamp
Brightness.
Technical solution: in order to achieve the goal above, a kind of classroom luminous environment control based on NB-IOT of the present invention
System, it is characterised in that: including the equipment end being made of luminous environment collection terminal and LED control terminal, cloud platform and host computer prison
Control end；
The luminous environment collection terminal is made of control chip, NB-IOT module, camera module, and luminous environment collection terminal uses
More exposure amalgamation modes obtain the accurate luminous environment information in classroom, and the optimal brightness of indoor each LED is calculated by image procossing
It is worth and is sent to ipc monitor end；
The LED control terminal is made of control chip, NB-IOT module, LED lamp and LED constant current drive module, is used for
Control signal is received after to control LED lamp brightness；
The cloud platform is as the communication relay between ipc monitor end and LED control terminal, luminous environment collection terminal, Yun Ping
Pass through base station connection communication between platform and equipment end；
The ipc monitor end includes the server and computer interface end two parts, server and cloud platform of storing data
Real time interaction information, computer interface end real time access server obtains data and issues data, when computer interface end is offline, clothes
Business device keeps carrying out data interaction with the next end online.
As present invention further optimization, the equipment end is by a luminous environment collection terminal and multiple LED control terminal groups
At luminous environment collection terminal is mounted on classroom dead astern, for shooting the Global Information in record classroom, each LED control terminal installation
In classroom ceiling, the brightness of one LED lamp of independent control, and realized and ipc monitor end by NB-IOT module
Communication.
As present invention further optimization, the luminous environment collection terminal records entire indoor scene image by shooting
Wide viewing angle image is obtained, then goes the conversion of distortion algorithm for the undistorted plan view of subsequent processing by the image inside STM32
Picture.
As present invention further optimization, the luminous environment collection terminal is in such a way that camera exposes more in recording room
The luminance information of high dynamic range, the image for shooting several different exposures then passes through blending algorithm and camera luminosity response is bent
Line recovers the high-dynamics image of width reflection real scene brightness, and the acquisition of several different exposure images is using change exposure
The method of time obtains.
As present invention further optimization, the brightness of desktop is determined according to obtained high-dynamics image, further according to desktop
Reflection characteristic determine the real-time illumination of desktop, constantly turn down corresponding lamps and lanterns LED luminance when desktop illumination is higher than limit value, directly
It is being suitble in section to collected brightness value next time or is stopping adjusting for 0 to LED luminance, when desktop illumination is lower than standard value
Corresponding lamps and lanterns LED luminance is then turned up.
It is determined according to the chromaticity of blackboard black as present invention further optimization by collected flat image
The pixel region that plate is located in the picture judges that whether there is or not enter mould of attending class in classroom according to whether blackboard contains prominent highlight regions
Formula, if mode of attending class then turns down the brightness value of classroom front area LED.
As present invention further optimization, the luminous environment collection terminal shoots the scene brightness of record by mostly exposure
Information is sent to cloud platform by NB-IOT module, cloud platform again forwards signal come brightness needed for calculating indoor each LED
Give ipc monitor end.
As present invention further optimization, the ipc monitor end is used to receive adopting for luminous environment collection terminal transmission
Collect signal, each LED light luminance information real-time display in each classroom over the display and is backed up into storage, while will be each
LED luminance control signal is handed down to corresponding LED control terminal.
As present invention further optimization, the host computer setting system is manual mode or automatic mode.
As present invention further optimization, LED control terminal is according to the LED luminance value received, by way of PWM wave
LED constant-current driver is controlled, the brightness of LED is then controlled, for the characteristic for adapting to human eye, soft is used when adjusting LED luminance
Whole mode reaches target by way of slowly improving PWM wave duty ratio whithin a period of time when LED luminance to be improved
Brightness value；Reach object brightness by way of slowly reducing PWM wave duty ratio whithin a period of time when LED luminance to be reduced
Value.
The utility model has the advantages that a kind of classroom luminous environment control system based on NB-IOT provided by the invention, with prior art phase
Than having the advantage that
1, compared to lighting control system in conventional chamber, equipment end structure is easier, easy for installation to occupy little space, and is not required to converge
Poly- gateway can directly network；
2, by using NB-IOT communication mode have wide covering, strong ties, low-power consumption, low cost advantage；
3, the system can be really achieved intelligence, all record, then carry out more to indoor whole luminous environment information
Parameter fusion analytical calculation, then governing response LED luminance, so that classroom reaches optimum luminous environment state, while one
Determine to have saved the energy in degree.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the space structure in classroom and the integral layout figure of the next end equipment；
Fig. 3 is camera brightness curve, i.e. the corresponding relationship curve of light exposure and grey scale pixel value；
Fig. 4 is classroom luminous environment regulation flow process figure；
Fig. 5 is the position view of blackboard, blackboard lights and projector；
Fig. 6 is the structure chart at ipc monitor end；
Fig. 7 is the concrete structure diagram and power supply mode figure of LED control terminal.
Specific embodiment
With reference to the accompanying drawing, the present invention is furture elucidated.
A kind of classroom luminous environment control system based on NB-IOT of the present invention, as shown in Figure 1, wherein equipment end packet
Containing classroom luminous environment collection terminal and the two kinds of equipment of LED control terminal, a luminous environment collection terminal is by high-performance STM32 core
Piece, NB-IOT module and camera module composition, and LED control terminal then by the STM32 chip of opposite low side, NB-IOT module and
LED constant current drive control device composition.Equipment end is communicated by NB-IOT module with operator base station, and connection cloud is flat again for base station
Platform, cloud platform can be communicated with equipment end in real time, and equipment end is also achieved that the function of being connected to internet.Cloud platform is made
For relay, after the data information at receiving device end can change data format be then forwarded to ipc monitor end, can also receive
The control signal at ipc monitor end is sent to equipment end by base station again after format transformation, if equipment end is not temporarily online, cloud
Data then can be issued equipment end again after opening of device NB-IOT communication with temporary cache data by platform.Ipc monitor end
It is then the top layer part of whole system, specifically includes computer interface end and server two parts, server is in real time and cloud platform
Interactive information, computer interface end logs in rear accessible server and obtains data and issue data, after computer interface end is offline,
Server still may remain in line, carries out data interaction with the next end and handles data.
As shown in Fig. 2, be integral arrangement situation of the system of the present invention in classroom, the desktop, blackboard in classroom with
And the case where layout of lamps and lanterns is all drawn in the figure, which meets existing most middle and primary schools classrooms.Equipment end is mounted on religion
Specific position in room realizes the interaction with host computer by NB-IOT communication.Equipment end includes that a classroom luminous environment is adopted
Collect end and multiple LED control terminals, wherein luminous environment collection terminal is mounted on the position of classroom rear ceiling, and figure two show one kind
Typical installation site, camera in the position can collect the image information of desktop and blackboard, and in acquisition table
It is not easy to be blocked by the body of student when the image of face.LED control terminal then is used to control the lamp brightness of LED, and a lamps and lanterns are equipped with
One LED console device, indoor every lamps and lanterns can realize individual brightness control.
Since the usual space in classroom is bigger, with the camera lens of common view angle often can not the entire space of disposable recording letter
Breath, therefore the luminous environment collection terminal in the present invention obtains religion by being equipped with the embedded camera of fish eye lens or bugeye lens
The image information of room.Fish eye lens is a kind of extreme wide-angle lens, and visual angle can be primary to shoot close to 180 degree
The Global Information in classroom is recorded, but there are serious distortion for the image of its shooting, it is necessary first to carry out image and go at distortion
Reason.
The core of luminous environment collection terminal in classroom of the present invention is that high dynamic range is synthesized by way of exposing shooting more
Real space luminance picture.According to geometric optical theory, illumination and the actual scene brightness that camera sensing device receives are deposited
In following corresponding relationship:
E is the illumination of camera optical sensor plane (CCD or CMOS) in formula (1), and L is the brightness of actual scene, and τ is mirror
Head transmissivity, FmFor the inverse in camera relative value aperture.Meanwhile optical sensor planar illumination E again with light exposure exist with
Lower relationship:
H=E × T (2)
Wherein, T is the time for exposure, and H is light exposure.
It is illustrated in figure 3 the corresponding relationship of camera exposure amount and gray value, referred to as camera brightness response curve, it is camera
It is just fixed up after factory, this camera brightness curve can be recovered by the method for experimental calibration.According to brightness song
Time for exposure when line and shooting can determine that the mapping of gray value of image and actual scene brightness is closed in conjunction with formula (1) (2)
System.
But the brightness of image dynamic range that the shooting of camera single exposure obtains often is limited, it may appear that part
Highlight regions overexposure or local dark areas expose inadequate problem, and the present invention is using more exposure fusion record high dynamic brightness
Information.High brightness using the high information for exposing low-light level section in shooting record scene, in low exposure shooting record actual scene
Segment information.Minimum shooting number needed for primary more exposure process is determined by formula (3):
N=NScene/NCamera(3)
Wherein n is shooting number needed for primary more exposures, i.e. picture number needed for high dynamic fusion, NSceneFor classroom
The luminance dynamic range of scene, NCameraFor the dynamic range of camera camera.After obtaining so more exposure images of n width, using power
It is a panel height dynamic brightness range image that the method merged again, which merges this n images,.It realizes process as shown in following equation:
Li=f (Bi), i is 1 integer (4) for arriving n
Wherein LiFor the brightness value restored by single image, BiFor pixel gray value, f () is determined by (1) (2) formula
Brightness-gray scale corresponding relationship, L is to obtained final brightness value after the weighting of n width image co-registration.It can be seen that pixel grey scale
Value is closer to 128 pixel, and shared weight is bigger in brightness reduction process, this regulation is determined by Fig. 2 curve shape
, closer to the pixel of 128 gray values, slope is bigger, show to be mapped as light exposure H by grey scale pixel value in the region,
Precision is higher during re-mapping as brightness L, therefore distributes to the bigger weight of pixel close to 128 pixel values.
After the image for restoring a panel height dynamic brightness range, the intrinsic brilliance letter of classroom any position can be accurately obtained
Breath.According to the chromaticity of classroom desktop, determines the desktop area in shooting image, inspection information or actual measurement can be passed through
The chromaticity of desktop is determined, then by the brightness of desktop area it can be concluded that the rough light situation of desktop.It is specifically counted
Calculate process it is as follows, in the calculating by desktop Approximate Equivalent be complete diffuse reflector:
Ein=π L/ ρ (8)
Wherein EinFor desktop illumination, ρ is desktop reflectivity, and L is the desktop brightness measured, and formula 8 describes desktop brightness
Relationship between illumination.If it is corresponding that the desktop brightness value being calculated not in reasonable value section, recalculates the region
The brightness of lamps and lanterns sends dimming commands and adjusts lamp brightness, then proceedes to whether detection desktop illumination meets the requirements, and does not meet just
Continue to adjust lamp brightness, the flow chart of the feedback regulation is as shown in Figure 4.
Frequency of use of the blackboard in students'learning is very big, the lighting condition of blackboard directly concerning the eyesight of student,
Therefore the adjusting for needing more to refine.It is illustrated in figure 5 the position view of blackboard, blackboard lights and projector, top is two
Blackboard lights, they are controlled by respective LED console device, and blackboard is located on preceding metope, and projection blank is normally at blackboard
Intermediate one piece of rectangular area, usually the blank is blocked by blackboard surface, blackboard surface pushed open when using can expose blank as
Projection plane uses.The pixel region position for determining blackboard in shooting image is identified by coloration first, can be provided by consulting
Material or actual measurement determine the chromaticity of blackboard, can determine the position of blackboard in the picture according to this chromaticity.
According to the brightness in blackboard region, blackboard surface illumination can be calculated in conjunction with formula (8), blackboard lights are carried out according to blackboard surface illumination
It adjusts, this adjustment process is similar with illumination adjustment process of showing up.When blackboard region detection to one piece of biggish high brightness of area
When region, then explanation opens projector, and projecting on blank has projected image, should close blackboard lights at this time, and accordingly turn down
The brightness of classroom first half region lamps and lanterns is attended class mode into multimedia.
As shown in fig. 6, luminous environment collection terminal is after calculating the adjusting brightness of corresponding lamps and lanterns, by NB-IOT module by this
One information is sent to the base station NB, and base station will send information in cloud platform again, and cloud platform has relaying caching and conversion data lattice
The function of formula, the binary data that equipment end can be received is converted into json formatted data, and is sent to ipc monitor
End, json data are specifically sent on the server of user, can in real time and server after user opens computer end interface
Carry out data interaction.Computer end interface has real-time monitoring equipment end state, manually controls the functions such as lamps and lanterns.
As described in Figure 7 be LED control terminal specific structure, power module by alternating current 220V exchange be converted into 5V direct current and
220V direct current, 5V direct current is used to control chip and NB-IOT module for power supply, and LED constant current drive control device is supplied by 220V
Electricity can produce constant-current source to drive LED lamp to shine.The LED control terminal passes through NB-IOT module receiving light brightness control letter
Number, after being handled by STM32, the PWM wave for generating corresponding pulsewidth gives constant current drive control device.Constant current drive control device is based on receiving
The PWM wave arrived carries out brightness control to lamps and lanterns.Based on the frequency limitation of human eye perception flashing, the light modulating frequency of lamps and lanterns is at least answered
It should be 100HZ.Simultaneously in view of when changing lamp brightness, unexpected brightness change can cause the discomfort of human eye, cause to regard tired
Labor and learning efficiency decline, when adjusting LED luminance in such a way that soft is whole, i.e., when LED luminance to be improved by one
The mode that PWM wave duty ratio is stepped up in the section time reaches target brightness value；When LED luminance to be reduced by one section
The interior mode for gradually reducing PWM wave duty ratio reaches target brightness value.
The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow the skill for being familiar with the technical field
Art personnel can understand the content of the present invention and implement it accordingly, and can not be limited the scope of the invention with this.For this
For the those of ordinary skill of technical field, without departing from the principle of the present invention, several improvement and profit can also be made
Decorations, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (10)
1. a kind of classroom luminous environment control system based on NB-IOT, it is characterised in that: including by luminous environment collection terminal and LED control
The equipment end of end composition processed, cloud platform and ipc monitor end；
The luminous environment collection terminal is made of control chip, NB-IOT module, camera module, and luminous environment collection terminal is exposed more using
Light amalgamation mode obtains the accurate luminous environment information in classroom, calculates the optimal brightness value of indoor each LED simultaneously by image procossing
It is sent to ipc monitor end；
The LED control terminal is made of control chip, NB-IOT module, LED lamp and LED constant current drive module, for receiving
Control signal is after to control LED lamp brightness；
The cloud platform as the communication relay between ipc monitor end and LED control terminal, luminous environment collection terminal, cloud platform with
Pass through base station connection communication between equipment end；
Server of the ipc monitor end comprising storing data and computer interface end two parts, server are real-time with cloud platform
Interactive information, computer interface end real time access server obtains data and issues data, when computer interface end is offline, server
It keeps carrying out data interaction with the next end online.
2. a kind of classroom luminous environment control system based on NB-IOT according to claim 1, it is characterised in that: described to set
Standby end is made of a luminous environment collection terminal and multiple LED control terminals, and luminous environment collection terminal is mounted on classroom dead astern, for clapping
The Global Information in record classroom is taken the photograph, each LED control terminal is mounted on classroom ceiling, the brightness of one LED lamp of independent control,
And the communication with ipc monitor end is realized by NB-IOT module.
3. a kind of classroom luminous environment control system based on NB-IOT according to claim 1, it is characterised in that: the light
Environment collection terminal records entire indoor scene image by shooting and obtains wide viewing angle image, then by the figure inside STM32
As going the conversion of distortion algorithm for the undistorted flat image of subsequent processing.
4. a kind of classroom luminous environment control system based on NB-IOT according to claim 3, it is characterised in that: the light
The luminance information of environment collection terminal high dynamic range in recording room in such a way that camera exposes more shoots several difference exposures
The image of degree then passes through blending algorithm and camera brightness response curve recovers the high dynamic of width reflection real scene brightness
The acquisition of image, several different exposure images is obtained using the method for changing the time for exposure.
5. a kind of classroom luminous environment control system based on NB-IOT according to claim 4, it is characterised in that: according to
To high-dynamics image determine the brightness of desktop, the real-time illumination of desktop is determined further according to the reflection characteristic of desktop, when desktop shines
Degree constantly turns down corresponding lamps and lanterns LED luminance when being higher than limit value, until next time collected brightness value be suitble in section or extremely
LED luminance is 0 and stops adjusting, when corresponding lamps and lanterns LED luminance is then turned up lower than standard value in desktop illumination.
6. a kind of classroom luminous environment control system based on NB-IOT according to claim 3, it is characterised in that: by adopting
The flat image collected determines the pixel region that blackboard is located in the picture according to the chromaticity of blackboard, according to blackboard whether
Classroom is judged whether there is or not mode of attending class is entered, if mode of attending class then turns down classroom front area LED's containing prominent highlight regions
Brightness value.
7. a kind of classroom luminous environment control system based on NB-IOT according to claim 3, it is characterised in that: described
Brightness needed for luminous environment collection terminal calculates indoor each LED by exposing the scene brightness information of shooting record more, passes through
NB-IOT module is sent to cloud platform, and signal is transmitted to ipc monitor end again by cloud platform.
8. a kind of classroom luminous environment control system based on NB-IOT according to claim 7, it is characterised in that: described
Ipc monitor end is used to receive the acquisition signal of luminous environment collection terminal transmission, by each LED light luminance information in each classroom
Real-time display over the display and backs up storage, while each LED luminance control signal is handed down to corresponding LED control terminal.
9. a kind of classroom luminous environment control system based on NB-IOT according to claim 8, it is characterised in that: described
It is manual mode or automatic mode that system, which is arranged, in host computer.
10. a kind of classroom luminous environment control system based on NB-IOT according to claim 8, it is characterised in that: LED control
End processed controls LED constant-current driver according to the LED luminance value received by way of PWM wave, then controls the brightness of LED,
For adapt to human eye characteristic, when adjusting LED luminance in such a way that soft is whole, i.e., when LED luminance to be improved by one
The mode that PWM wave duty ratio is slowly improved in the section time reaches target brightness value；When LED luminance to be reduced by one section
The interior slow mode for reducing PWM wave duty ratio reaches target brightness value.
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| CN201811530990.4A CN109640442B (en) | 2018-12-14 | 2018-12-14 | Classroom light environment control system based on NB-IOT |
| PCT/CN2019/095205 WO2020119101A1 (en) | 2018-12-14 | 2019-07-09 | Nb-iot based classroom light environment control system |
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| CN201811530990.4A CN109640442B (en) | 2018-12-14 | 2018-12-14 | Classroom light environment control system based on NB-IOT |
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| CN109640442B CN109640442B (en) | 2021-06-11 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716955A (en) * | 2013-11-16 | 2014-04-09 | 镇江高等职业技术学校 | Classroom zoned intelligent illumination system specific to night classes in universities |
| CN106455210A (en) * | 2016-10-09 | 2017-02-22 | 浙江凯耀照明股份有限公司 | Indoor illuminance intelligent adjustment apparatus and control method |
| CN206380120U (en) * | 2016-08-31 | 2017-08-04 | 华北电力大学（保定） | A kind of adaptive classroom lighting control system |
| CN107105563A (en) * | 2017-07-03 | 2017-08-29 | 刘胜泉 | A kind of method that image recognition controls indoor lamp |
| CN107426894A (en) * | 2017-06-20 | 2017-12-01 | 上海大学 | Classroom lighting automatic detection and control system and its method based on intelligent video identification |
| CN206712926U (en) * | 2017-05-26 | 2017-12-05 | 淮阴师范学院 | A kind of more exposure image emerging systems |
| CN107567138A (en) * | 2017-09-13 | 2018-01-09 | 重庆邮电大学 | Intelligent lamp control apparatus and system based on cloud computing |
| CN108184298A (en) * | 2017-11-28 | 2018-06-19 | 上海亚明照明有限公司 | Intelligent electric power unit and method for controlling lamp based on NB-IoT |
| CN108391059A (en) * | 2018-03-23 | 2018-08-10 | 华为技术有限公司 | A kind of method and apparatus of image procossing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109640442B (en) * | 2018-12-14 | 2021-06-11 | 东南大学 | Classroom light environment control system based on NB-IOT |
-
2018
- 2018-12-14 CN CN201811530990.4A patent/CN109640442B/en active Active
-
2019
- 2019-07-09 WO PCT/CN2019/095205 patent/WO2020119101A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716955A (en) * | 2013-11-16 | 2014-04-09 | 镇江高等职业技术学校 | Classroom zoned intelligent illumination system specific to night classes in universities |
| CN206380120U (en) * | 2016-08-31 | 2017-08-04 | 华北电力大学（保定） | A kind of adaptive classroom lighting control system |
| CN106455210A (en) * | 2016-10-09 | 2017-02-22 | 浙江凯耀照明股份有限公司 | Indoor illuminance intelligent adjustment apparatus and control method |
| CN206712926U (en) * | 2017-05-26 | 2017-12-05 | 淮阴师范学院 | A kind of more exposure image emerging systems |
| CN107426894A (en) * | 2017-06-20 | 2017-12-01 | 上海大学 | Classroom lighting automatic detection and control system and its method based on intelligent video identification |
| CN107105563A (en) * | 2017-07-03 | 2017-08-29 | 刘胜泉 | A kind of method that image recognition controls indoor lamp |
| CN107567138A (en) * | 2017-09-13 | 2018-01-09 | 重庆邮电大学 | Intelligent lamp control apparatus and system based on cloud computing |
| CN108184298A (en) * | 2017-11-28 | 2018-06-19 | 上海亚明照明有限公司 | Intelligent electric power unit and method for controlling lamp based on NB-IoT |
| CN108391059A (en) * | 2018-03-23 | 2018-08-10 | 华为技术有限公司 | A kind of method and apparatus of image procossing |
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|---|---|---|---|---|
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| CN110346116A (en) * | 2019-06-14 | 2019-10-18 | 东南大学 | A kind of scene illumination calculation method based on Image Acquisition |
| CN112333898B (en) * | 2019-08-30 | 2023-04-25 | 北京字节跳动网络技术有限公司 | Lamp brightness adjusting method and device, lamp and storage medium |
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| CN110972362A (en) * | 2019-12-27 | 2020-04-07 | 重庆绿色科技开发（集团）有限公司 | NB-IOT wireless control's multichannel constant current single-lamp control system |
| CN111163570A (en) * | 2019-12-30 | 2020-05-15 | 南京东晖光电有限公司 | NB-IOT (NB-IOT) -based indoor lamp combination regulation and control system and method |
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| WO2020119101A1 (en) | 2020-06-18 |
| CN109640442B (en) | 2021-06-11 |
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