CN207218885U - A kind of intelligent terminal auto-exposure control structure for wireless light communication - Google Patents
A kind of intelligent terminal auto-exposure control structure for wireless light communication Download PDFInfo
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- CN207218885U CN207218885U CN201721169995.XU CN201721169995U CN207218885U CN 207218885 U CN207218885 U CN 207218885U CN 201721169995 U CN201721169995 U CN 201721169995U CN 207218885 U CN207218885 U CN 207218885U
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Abstract
The utility model discloses a kind of intelligent terminal auto-exposure control structure for wireless light communication, including：Intelligent terminal housing main body, hardware circuit in intelligent terminal camera and intelligent terminal main body, intelligent terminal housing main body includes touch display screen, homepage button and its side press-key, and button and touch display screen are used to control intelligent terminal camera software function so as to control intelligent terminal camera to carry out the reception of image；Intelligent terminal camera includes photographing module, control module, adjustment module and the coffret being sequentially connected, and intelligent terminal camera is realized by the hardware circuit in its coffret and intelligent terminal main body and is electrically connected.The utility model realizes auto-focusing and automatic exposure, and the time for exposure is adjusted according to the light level of surrounding environment, the luminance gain of whole image picture is adjusted, so as to accurately recover numerical data from Pixel Information, obtains accurate wireless light communication signal data.
Description
Technical field
It the utility model is related to wireless light communication technical field and intelligent terminal structure, and in particular to one kind is used for wireless optical
The intelligent terminal auto-exposure control structure of communication.
Background technology
In recent years, the semiconductor devices LED for being described as " green illumination " is developed rapidly, is shone compared to traditional incandescent lamps
Mingguang City source, LED have the characteristics that low energy consumption, long lifespan, green.Meanwhile LED also have modulating performance it is good, response it is sensitive
Degree is high, without advantages such as electromagnetic interferences, can be transmitted signal with the high frequency of human eye None- identified, and the optical frequencies that LED is sent
Do not need permission, it is possible to achieve the high broadband of low cost and the high wireless telecommunications of transmission rate, thus expedited the emergence of one can
Realize illumination and technology --- the visible light communication technology of communicating integral.
With the development of mobile intelligent and the continuous renewal of intelligent terminal function, demand of the people for intelligent terminal
Increasingly it is intended to diversification, intelligent terminal video camera is initially not designed to means of communication, if can be it will be seen that optic communication
Technology is used in combination with intelligent terminal function, using intelligent terminal camera as OCC (Optical Camera
Communication) communication equipment, for carrying out the transmission of optic communication signal in visible light communication, then intelligent terminal is in day
Often the popularization in life will bring very big facility.
In OCC systems, when destination object is out of focus in the camera, or exposure is when being longer than run duration, the figure received
As pixel can thicken so that the image received can not be decoded from the signal of transmission, the mould in the image received
An important factor for paste amount is in decoding process, and because purpose existing for OCC systems is into row data communication, the color matter of image
Amount is not a major issue for decoding process.OCC systems are directed to, the fuzzy problem of image pixel can be by automatic right
Burnt and automatic exposure solves.
For OCC systems, indoors in the case of, the LED illumination point for data transfer will be very bright, and may cause
LED section saturation in the picture.The saturation part of image is all shown as white, it is difficult to distinguishes black and white rank and carries out data solution
Code, i.e. None- identified go out the wireless optical data of LED light source transmission.
Therefore, extremely it is necessary to develop a kind of intelligent terminal auto-exposure control structure for wireless light communication.
Utility model content
The purpose of this utility model is to solve drawbacks described above of the prior art, there is provided one kind is used for wireless light communication
Intelligent terminal auto-exposure control structure, camera auto-focusing and automatic exposure are can control, so as to change image pixel
The gain of light, realize the transmission of wireless light communication signal data.
The purpose of this utility model is achieved through the following technical solutions：
A kind of intelligent terminal auto-exposure control structure for wireless light communication, described structure include：Intelligent terminal
Hardware circuit in housing main body, intelligent terminal camera and intelligent terminal main body,
Described intelligent terminal housing main body includes touch display screen, homepage button and its side press-key, respectively with institute
Hardware circuit electrical connection in the intelligent terminal main body stated, wherein, button and touch display screen are used to control intelligent terminal phase
Machine software function so as to control intelligent terminal camera carry out image reception；
Described intelligent terminal camera includes photographing module, control module, adjustment module and the transmission being sequentially connected
Interface, described intelligent terminal camera realize electricity by the hardware circuit in its coffret and described intelligent terminal main body
Gas connects；
Hardware circuit in described intelligent terminal main body includes storage module and wireless optical data decoder module.
Further, described photographing module is provided with controllable aperture, camera lens and the sensor group being sequentially connected, described
Sensor group includes imaging sensor and light sensor, described control module, for obtaining the week of imaging sensor perception
Collarette environmental light strength information, the camera time for exposure is controlled, so as to control absorption light quantity；Described adjustment module, for adjusting
The average gain of whole image frame pixel, changes the light intensity gain of picture with spectrum assignment algorithm, so as to distinguish
Go out the wireless optical data signal of LED light source transmission, and be transferred to the coffret.
Further, described coffret is mobile industrial processor interface MIPI.
Further, described storage module is used to store acquired wireless light communication signal pattern；Described is wireless
Light data decoder module, comprising central processor CPU and electronic operation processor, corresponding wireless optical is obtained for calculation process
Communication signal data.
The utility model is had the following advantages relative to prior art and effect：
(1) the utility model proposes one kind to utilize intelligent terminal camera auto-focusing and image sensor pixel gain
Method of adjustment automatically controls exposure technique, the mean chart of adjustment intelligent terminal camera capture LED light source object overall picture
As pixel gain, so as to identify and decode the wireless light communication signal data that light source led is sent.
(2) the wireless optical data transmission method of wireless light communication technology has been used in combination in the utility model, by light source
The image capture of LED objects, the pixel gain of adjustment picture, identification are decoded so as to obtain the wireless light communication signal that LED is sent,
Utilization of the intelligent terminal in wireless light communication field is realized, the utility model can apply to different environment and occasion, increase
The practicality and novelty of intelligent terminal function.
(3) the utility model proposes one kind to utilize intelligent terminal camera auto-focusing and image sensor pixel gain
Method of adjustment automatically controls exposure technique, the mean chart of adjustment intelligent terminal camera capture LED light source object overall picture
As pixel gain, so as to identify and decode the wireless light communication signal data that light source led is sent.
(4) the wireless optical data transmission method of wireless light communication technology has been used in combination in the utility model, by light source
The image capture of LED objects, the pixel gain of adjustment picture, identification are decoded so as to obtain the wireless light communication signal that LED is sent,
Utilization of the intelligent terminal in wireless light communication field is realized, the utility model can apply to different environment and occasion, increase
The practicality and novelty of intelligent terminal function.
Brief description of the drawings
Fig. 1 is the intelligent terminal auto-exposure control structural representation for wireless light communication disclosed in the utility model
Figure；
Fig. 2 is that intelligent terminal auto-focusing schematic diagram is realized in the utility model；
Fig. 3 is that intelligent terminal receives the excessive schematic diagram of image exposure in the utility model；
Fig. 4 is that intelligent terminal spectrum assignment schematic diagram is realized in the utility model.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Embodiment one
As shown in figure 1, a kind of intelligent terminal auto-exposure control structure for wireless light communication, including：Intelligent terminal
Hardware circuit in housing main body, intelligent terminal camera and intelligent terminal main body, intelligent terminal housing main body include touching
Display screen, homepage button and its side press-key, it is electrically connected respectively with hardware circuit；Described button and touch display screen are used
In control intelligent terminal camera software function so as to control intelligent terminal camera carry out image reception；Described intelligent terminal
Camera includes photographing module, control module, adjustment module and the coffret being sequentially connected, the shooting of described intelligent terminal
Head is realized by the hardware circuit in its coffret and the intelligent terminal main body and is electrically connected；Described intelligent terminal main body
Interior hardware circuit includes storage module and wireless optical data decoder module.
Wherein, intelligent terminal camera is used for the wireless light communication signal for receiving light source led transmission.
Data are wirelessly transferred by the structure by light source led, and LED objects are caught by intelligent terminal camera
Catch, and carry out auto-focusing and automatic exposure, the pixel gain of whole image pixel is adjusted, so as to identify and decode LED light source
The wireless light communication signal data of transmission.
Light source led transmits wireless light communication signal, and the photographing module of intelligent terminal camera is according to object and image sensing
The direct distance of device, i.e. picture depth, are adjusted auto-focusing, and light sensor obtains the light intensity letter of surrounding enviroment
Breath, controlling the camera lens time for exposure by control module, adjustment module is adjusted by spectrum assignment algorithm so as to control absorption light quantity
The average gain of whole image picture pixel, so as to distinguish the wireless optical data signal of LED light source transmission, then pass through institute
State side press-key or touch-screen control mobile phone catches and receives view data, described image data are transmitted by the coffret
To the storage module, then it will be seen that light data is transferred to wireless optical data decoder module and carries out the accurate wireless optical of decoding acquisition
Communication data.
As shown in Fig. 2 the distance between imaging sensor, i.e. picture depth in object and camera sensing device group, intelligence
The photographing module of terminal camera is adjusted and accurately controlled from imaging sensor to image pair according to the picture depths of different objects
Burnt distance, auto-focusing region is determined at the center of image, is adjusted auto-focusing.
As shown in figure 3, light sensor obtains the light level information of surrounding environment in sensor group, due to surrounding environment
Light level it is stronger, there is saturated phenomenon in the image of acquisition, and LED light source is presented white, and surrounding environment is black or Dark grey,
Now None- identified goes out the wireless light communication signal data of LED light source transmission, is now fed back by light sensor, camera control
Molding block controls the camera time for exposure so as to control absorption light quantity, carries out auto-exposure control.
As shown in figure 4, imaging sensor adjusts whole image picture pixel by adjustment module with spectrum assignment algorithm
Luminance picture gain, control the average brightness of image so that camera can distinguish wireless optical data in LED light source
Black and white rank, so as to distinguish the wireless optical data signal of LED light source transmission.
Touch display screen and intelligent terminal side press-key control intelligent terminal camera carry out the reception capture of image, will
All pixel datas are transferred to described storage module by coffret MIPI in terminal image, store acquired wireless
Optic communication signal pattern.
The wireless optical data that LED light source is sent is obtained, the decoding of wireless optical data decoder module is transmitted to and is obtained from what
Accurate wireless optical data information.
Wherein, described intelligent terminal includes mobile phone, notebook computer, tablet personal computer and palm equipment for surfing the net, multimedia
Equipment, stream media equipment, mobile internet device (MID, mobile internet device), wearable device or other classes
The terminal device of type.
In summary, intelligent terminal auto-exposure control structure can be controlled automatically and accurately from intelligence disclosed in above-described embodiment
Energy terminal camera imaging sensor carries out auto-focusing to the distance of image object；Automatically control the suction of intelligent terminal camera
The light quantity of receipts, automatic exposure is carried out, the time for exposure is adjusted according to the light level of surrounding environment, adjusts the bright of whole image picture
Gain is spent, so as to accurately recover numerical data from Pixel Information, obtains accurate wireless light communication signal data.Together
Shi Geng great ization uses intelligent terminal function, meets the needs of user is to diversification intelligent terminal function, improves intelligent terminal
Use value.
Embodiment two
Present embodiment discloses a kind of intelligent terminal automatic exposure control method for wireless light communication, with above-mentioned implementation
Auto-exposure control mechanism disclosed in example is implementation, is passed by automatically and accurately controlling from intelligent terminal camera image
Sensor carries out auto-focusing to the distance of image object；The light quantity absorbed by automatically controlling intelligent terminal camera, is carried out certainly
Dynamic exposure, the time for exposure is adjusted according to the light level of surrounding environment, adjusts the luminance gain of whole image picture, so as to
Numerical data is accurately replied from Pixel Information, obtains accurate wireless light communication signal data.This method realizes bigizationner
Use cell-phone function, meet the needs of user is to diversification intelligent terminal function, improve the use value of intelligent terminal.
Wherein, described intelligent terminal includes mobile phone, notebook computer, tablet personal computer and palm equipment for surfing the net, multimedia
Equipment, stream media equipment, mobile internet device (MID, mobile internet device), wearable device or other classes
The terminal device of type.
This method specifically includes following steps：
Step S1, controlled exactly according to the direction of the distance between each image object and imaging sensor, camera
Distance from imaging sensor to image object, carry out auto-focusing.
The step specifically includes：
Step S101, the different distance of object and imaging sensor is determined according to picture depth.
Step S102, auto-focusing region is determined to the center of image.
Step S103, according to the picture depth of different objects, adjust and accurately control and focused from imaging sensor to image
Distance.
Step S2, the time for exposure is adjusted according to the light level of surrounding environment, so as to control intelligent terminal camera incident
Light quantity, carry out automatic exposure.
The step specifically includes：
Step S201, the light level information of surrounding environment is obtained by photosensitive sensor module.
Step S202, by the feedback of photosensitive sensor module, when the light of surrounding environment is stronger, reduces camera and expose
Between light time；When the dark of surrounding environment, increase the camera time for exposure, so as to control intelligent terminal camera incident light
Amount.
Step S3, the image of LED light source is captured, all pixels data in image is collected, adjusts the brightness of whole picture
Image gain, identify LED light source object and accurately obtain the wireless light communication signal data of its transmission.
The step specifically includes：
Step S301, LED light source object is caught, obtains the image information of LED light source, and collect all pixels in image
Data.
Step S302, according to Pixel Information in image, the luminance picture that whole picture is adjusted by spectrum assignment algorithm increases
Benefit, control the average brightness of image so that camera can distinguish the black and white rank of wireless optical data in LED light source.
Step S303, the wireless optical data that LED light source is sent is obtained, is carried out what software decoding obtain accurate nothing from
Linear light data message.
Above-described embodiment is the preferable embodiment of the utility model, but embodiment of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace
Generation, combination, simplify, should be equivalent substitute mode, be included within the scope of protection of the utility model.
Claims (4)
1. a kind of intelligent terminal auto-exposure control structure for wireless light communication, it is characterised in that described structure includes：
Hardware circuit in intelligent terminal housing main body, intelligent terminal camera and intelligent terminal main body,
Described intelligent terminal housing main body includes touch display screen, homepage button and its side press-key, respectively with it is described
Hardware circuit electrical connection in intelligent terminal main body, wherein, button and touch display screen are used to control intelligent terminal camera soft
Part function so as to control intelligent terminal camera carry out image reception；
Described intelligent terminal camera includes photographing module, control module, adjustment module and the coffret being sequentially connected,
Described intelligent terminal camera is realized by its coffret with the hardware circuit in described intelligent terminal main body electrically to be connected
Connect；
Hardware circuit in described intelligent terminal main body includes storage module and wireless optical data decoder module.
2. a kind of intelligent terminal auto-exposure control structure for wireless light communication according to claim 1, its feature
It is, described photographing module is provided with controllable aperture, camera lens and the sensor group being sequentially connected, and described sensor group includes
Imaging sensor and light sensor, described control module, the surrounding environment light for obtaining imaging sensor perception are strong
Information is spent, the camera time for exposure is controlled, so as to control absorption light quantity；Described adjustment module, drawn for adjusting whole image
The average gain of face pixel, change the light intensity gain of picture with spectrum assignment algorithm, sent so as to distinguish LED light source
Wireless optical data signal, and be transferred to the coffret.
3. a kind of intelligent terminal auto-exposure control structure for wireless light communication according to claim 1, its feature
It is, described coffret is mobile industrial processor interface MIPI.
4. a kind of intelligent terminal auto-exposure control structure for wireless light communication according to claim 1, its feature
It is, described storage module is used to store acquired wireless light communication signal pattern；Described wireless optical data decoding mould
Block, comprising central processor CPU and electronic operation processor, corresponding wireless light communication signal number is obtained for calculation process
According to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721169995.XU CN207218885U (en) | 2017-09-13 | 2017-09-13 | A kind of intelligent terminal auto-exposure control structure for wireless light communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721169995.XU CN207218885U (en) | 2017-09-13 | 2017-09-13 | A kind of intelligent terminal auto-exposure control structure for wireless light communication |
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| Publication Number | Publication Date |
|---|---|
| CN207218885U true CN207218885U (en) | 2018-04-10 |
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| CN201721169995.XU Expired - Fee Related CN207218885U (en) | 2017-09-13 | 2017-09-13 | A kind of intelligent terminal auto-exposure control structure for wireless light communication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707814A (en) * | 2017-09-13 | 2018-02-16 | 华南理工大学 | A kind of intelligent terminal automatic exposure control method and structure for wireless light communication |
| CN110602395A (en) * | 2019-09-10 | 2019-12-20 | Oppo广东移动通信有限公司 | Electronic equipment and control method of camera thereof |
-
2017
- 2017-09-13 CN CN201721169995.XU patent/CN207218885U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707814A (en) * | 2017-09-13 | 2018-02-16 | 华南理工大学 | A kind of intelligent terminal automatic exposure control method and structure for wireless light communication |
| CN110602395A (en) * | 2019-09-10 | 2019-12-20 | Oppo广东移动通信有限公司 | Electronic equipment and control method of camera thereof |
| CN110602395B (en) * | 2019-09-10 | 2021-04-13 | Oppo广东移动通信有限公司 | Electronic equipment and control method of camera thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20190913 |
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| CF01 | Termination of patent right due to non-payment of annual fee |