CN207218701U - Suitable for the smart mobile phone image receiving system of visible light communication - Google Patents
Suitable for the smart mobile phone image receiving system of visible light communication Download PDFInfo
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- CN207218701U CN207218701U CN201721060230.2U CN201721060230U CN207218701U CN 207218701 U CN207218701 U CN 207218701U CN 201721060230 U CN201721060230 U CN 201721060230U CN 207218701 U CN207218701 U CN 207218701U
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- mobile phone
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- timestamp
- gyroscope
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Abstract
The utility model discloses a kind of smart mobile phone image receiving system suitable for visible light communication, the system includes smart mobile phone housing main body, hardware circuit, camera, touch display screen and sensor group in smart mobile phone housing main body, the touch display screen in the smart mobile phone housing main part side button and smart mobile phone housing main body can be used in controlling camera capture to receive image；Timestamp trapping module and real-time clock module for synchrodata is installed, the timestamp trapping module and real-time clock module are electrically connected by hardware circuit in the hardware circuit；The sensor group includes imaging sensor and gyroscope.The imaging sensor independently used and gyroscope are combined by the utility model, are applied in optic communication and in the high-speed transfer of image synchronization data, have been expanded the function of smart mobile phone, have broad application prospects.
Description
Technical field
It the utility model is related to visible light communication field, and in particular to a kind of smart mobile phone figure suitable for visible light communication
As reception system.
Background technology
In recent years, the semiconductor devices LED for being described as " green illumination " is developed rapidly, compared to traditional incandescent lighting
Light source, LED have the characteristics that low energy consumption, long lifespan, green.Meanwhile LED also has that modulating performance is good, response sensitivity
It is high, without advantages such as electromagnetic interferences, signal can be transmitted with the high frequency of human eye None- identified, and the optical frequencies that LED is sent is 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 be real
Now illumination and technology --- the visible light communication technology of communicating integral.
With the development of mobile intelligent and the continuous renewal of smart mobile phone function, demand of the people for smart mobile phone
Increasingly it is intended to diversification, mobile phone hardware function can not fully meet the demand of user already in itself, such as using only shooting
Head as shooting image or record image instrument, using gyro sensors module as the sensing of gravity and mobile phone positioning,
It is intended to saturation in the continuous development of smart mobile phone using the function such as WiFi module receiving and transmission data, and because these are only
The limitation of the wasting of resources and WiFi transmitted data rates of the vertical hardware module to hardware system, it is necessary to strengthen smart mobile phone
The connected applications of hardware system function；For traditional smart mobile phone, all there is described image sensor mould in hardware circuit
Block and the gyro module, but its effect is implemented only in different circuit functions, if the sensor group, which is combined, to be made
With can not only realize accurate acquisition pixel data, transmission at the same time can be synchronized to data-signal, in conjunction with described
Visible light communication technology can realize the high-speed transfer of optical communication data.
In the existing research to traditional smart phone, all only rest on exploitation to independent hardware system function with it is complete
The kind stage, and camera and gravity sensing module have evolved to and level off to saturation in smart mobile phone, are imaged for smart mobile phone
The development of head is also only in that the intellectuality of camera pixel and smart mobile phone camera function, without more novel function,
And combined use of the system to image sensor module and gyro module is not all accounted in existing research, or smart mobile phone
Field and the binding of technical field of visible light communication.
Therefore, extremely it is necessary that developing a kind of smart mobile phone image suitable for visible light communication receives system, meets to use
Family is to the demand of diversification smart mobile phone function, the existing smart mobile phone hardware such as Intelligent Optimal handset image sensor and gyroscope
The R. concomitans of circuit, bigizationner utilize the existing hardware device of mobile phone, and signal is realized while realizing and receiving image
Synchronous high-speed transmits.
Utility model content
The purpose of this utility model is to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of suitable for visible light communication
Imaging sensor in smart mobile phone and gyroscope are used in combination, realized by smart mobile phone image receiving system, the system
Camera carries out the effect of visible data synchronous high-speed transmission while receiving image.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of smart mobile phone image receiving system suitable for visible light communication, the system include smart mobile phone shell master
Body, hardware circuit, camera, touch display screen and sensor group in smart mobile phone housing main body, the intelligent hand
Touch display screen in machine housing main part side button and smart mobile phone housing main body can be used in controlling camera capture to receive
Image；Timestamp trapping module and real-time clock module for synchrodata, the time are installed in the hardware circuit
Stamp trapping module and real-time clock module are electrically connected by hardware circuit；The sensor group include imaging sensor and
Gyroscope；Light source led launch visible data signal, using the smart mobile phone housing main part side button or smart mobile phone outside
Touch display screen control smart mobile phone camera software in shell main body sends photographing signals to smartphone software layer, by described
Photographing signals control camera and imaging sensor to carry out the reception of view data, and gyroscope obtains gyro sensor number simultaneously
According to described image sensor and gyroscope are while data are received, by real-time clock module to described image data and gyro
Instrument sensing data additional period stabs data, and transfers data to the timestamp trapping module, and the timestamp captures mould
Block captures to timestamp, at CPU of the visible data after synchronization by MIPI high-speed transfers to smart mobile phone
Reason.
Further, the hardware circuit is except being provided with timestamp trapping module and real-time clock module, in addition in
Central processor CPU, memory DDR SDRAM (dynamic RAM), and other external equipments can be connected.
Further, the transmission line to ensure between central processor CPU and memory DDR SDRAM keeps the company of impedance
Continuous property, eliminates reflex, and length difference causes greatly very much channel to reach CPU or memory DDR between preventing each data circuit
There is error in SDRAM time, and parallel cabling is used between central processor CPU and memory DDR SDRAM.
Further, the electrical connection between memory DDR SDRAM and timestamp trapping module and real-time clock module
It is transmitted by the MIPI lines with 4 autonomous channels, synchrodata is transmitted in MIPI lines high speed.
Further, described image sensor and gyroscope are that smart mobile phone carries separate hardware, pass through MIPI lines
It is electrically connected with the real-time clock module and timestamp trapping module and the transmission of data.
The utility model compared with prior art, has the following advantages that and beneficial effect：
1st, the utility model is used by the optimization to smart mobile phone hardware circuit, with reference to what is independently used in hardware circuit
Smart mobile phone imaging sensor and gyro module, on the premise of smart mobile phone hardware configuration is not changed, realize in image
The acquisition of exact pixels data, so as to realize new opplication of the smart mobile phone in visible light communication field.
2nd, the utility model uses the skill stabbed to smart mobile phone imaging sensor and gyroscope fetched data additional period
Art scheme, the program by data acquired additional period stab, and passage time stamp capture, reach vision sensor data with
The synchronous effect of gyroscope sensor data, so as to realize that the accurate synchronization of visible light communication data transmits.
Brief description of the drawings
Fig. 1 is a kind of knot of the smart mobile phone image receiving system suitable for visible light communication of the utility model embodiment 1
Structure schematic diagram.
Fig. 2 is that the relation of image sensor exposure times and gyroscope sensor data is shown in the utility model embodiment 2
It is intended to.
Fig. 3 is the timestamp schematic diagram of the view data of imaging sensor in the utility model embodiment 2.
Fig. 4 is temporary transient storage image data, gyroscope sensor data and timestamp number in the utility model embodiment 2
According to Circular buffer area schematic diagram.
Fig. 5 is the functional schematic of timestamp trapping module in the utility model embodiment 2.
Embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment 1：
As shown in figure 1, present embodiments provide a kind of smart mobile phone image receiving system suitable for visible light communication, institute
Stating system includes smart mobile phone housing main body, hardware circuit, camera, touch display in smart mobile phone housing main body
Screen and sensor group, the touch display screen in the smart mobile phone housing main part side button and smart mobile phone housing main body can
For controlling camera capture to receive image；Be provided with the hardware circuit for synchrodata timestamp trapping module and
Real-time clock module, the timestamp trapping module and real-time clock module are electrically connected by hardware circuit；The biography
Sensor group includes imaging sensor and gyroscope；Light source led launches visible data signal, uses the smart mobile phone shell master
Touch display screen in body side surface button or smart mobile phone housing main body controls smart mobile phone camera software to smartphone software
Layer sends photographing signals, controls camera and imaging sensor to carry out the reception of view data, gyro by the photographing signals
Instrument obtains gyroscope sensor data, described image sensor and gyroscope while data are received simultaneously, by real-time clock
Module stabs data to described image data and gyroscope sensor data additional period, and transfers data to the timestamp and catch
Module is obtained, the timestamp trapping module is captured to timestamp, and the visible data after synchronization is passed at a high speed by MIPI
The defeated CPU processing to smart mobile phone.
The hardware circuit is except being provided with timestamp trapping module and real-time clock module, in addition to central processing unit
CPU, memory DDR SDRAM (dynamic RAM), and other external equipments can be connected.
Further, the transmission line to ensure between central processor CPU and memory DDR SDRAM keeps the company of impedance
Continuous property, eliminates reflex, parallel cabling is used between central processor CPU and memory DDR SDRAM.
Electrical connection between the memory DDR SDRAM and timestamp trapping module and real-time clock module passes through tool
The MIPI lines for having 4 autonomous channels are transmitted, and synchrodata is transmitted in MIPI lines high speed.
Described image sensor and gyroscope are that smart mobile phone carries separate hardware, by MIPI lines by its with it is described
Real-time clock module and timestamp trapping module are electrically connected and the transmission of data.
Embodiment 2：
A kind of smart mobile phone image-receptive method suitable for visible light communication is present embodiments provided, methods described includes
Following steps：
Step 1, the imaging sensor of smart mobile phone and gyroscope receive view data and gyroscope sensor data respectively；
Step 2, timestamp is added into described image data and gyroscope sensor data, the timestamp is attached to
Each data point, described image data, gyroscope sensor data and time stamp data are temporarily stored in the master of AP systems
In memory DDR SDRAM (dynamic RAM)；
The relation schematic diagram of image sensor exposure times and gyroscope sensor data is as shown in Fig. 2 the intelligent hand
Machine camera is using the mode exposed line by line, because the gyroscope sensor data is the one-dimensional coordinate number in time domain
According to, and view data is the 2-D data captured on the time for exposure, and after obtaining view data, the one of gyroscope sensor data
Part is overlapping with the beginning of N+1 frames in the ending of N frames, so timestamp and N frames by using gyroscope sensor data
The timestamp that pixel is read, we can be with the motion of specified pixel.Added in described image data and gyroscope sensor data
Timestamp, the detailed process that the timestamp is attached to each data point are：
After step 2.1, described image sensor receive view data, by real-time clock module in each rolling pixel
Additional image timestamp, the output time of the first row pixel and last column pixel is respectively defined as to beginning and the knot of timestamp
The beam time, the timestamp schematic diagram of view data is as shown in figure 3, define the output of the first row and last column in imaging sensor
Mark is respectively timestamp A and C, and end of output mark respectively timestamp B and D can by the time for exposure of imaging sensor
To release timestamp E and F, caught when the first row pixel data for the view data that described image sensor receives reaches the time
When obtaining module, the module is captured real-time clock Counter Value as image temporal stamp A, and remaining timestamp B, C, D make
Added with identical order；
After step 2.2, the gyroscope receive gyroscope sensor data, real-time clock is counted by real-time clock module
Timestamp of the device value as gyroscope sensor data, the real-time clock module is designed to generate time stamp data, by 32
Digit counter forms.
Step 3, by the data transfer being stored in main storage DDR SDRAM (dynamic RAM) to time
Trapping module is stabbed, is caught the timestamp in described image data and gyroscope sensor data by timestamp trapping module
Obtain, realize the synchronization for the data that imaging sensor and gyroscope are obtained；DDR SDRAM (dynamic RAM) Circular buffer
The schematic diagram in area is as shown in figure 4, can obtain the time for exposure by reading the data of annular buffer area and obtain synchronous visible ray
Data, when frame #2 data in choosing, the buffer circle #2 timestamp related to frame #2 will be examined, and pass through A, B ... F
6 points of time for exposure that can calculate the beginning and end for identifying frame #2, the i.e. time for exposure of imaging sensor, further,
Time interval by checking frame #3 and frame #2 can obtain the complete exposure time of a frame pixel；Further, storage is passed through
Data and corresponding timestamp in Circular buffer area, can obtain synchronous visible data information, and pass through MIPI
Passage carries out high-speed transfer.
The functional schematic of timestamp trapping module is as shown in figure 5, detailed process is：
Step 3.1, reach the timestamp when the first row pixel data for the view data that described image sensor receives
During trapping module, timestamp trapping module is captured real-time clock Counter Value as image temporal stamp, remaining time
Stamp is added using identical order；
Step 3.2, when the gyroscope sensor data reach the timestamp trapping module when, timestamp trapping module
Captured real-time clock Counter Value as the timestamp of gyroscope sensor data；
Step 3.3, usage time stab trapping module by described image timestamp and the timestamp of gyroscope sensor data
Captured, realize the synchronization for the data that imaging sensor and gyroscope are obtained.
Step 4, the data of synchronization are used to the MIPI (mobile industrial processor interface) with four independent virtual passages
Agreement is transferred to the CPU of smart mobile phone, and visible data is obtained after carrying out processing decoding.
Wherein, the view data distribution of imaging sensor transmission is transmitted by MIPI channel Cs H_0；View data when
Between stab sequence distribution be transmitted by MIPI channel Cs H_1；16 x, y and z axes one-dimensional datas that gyroscope receives, add 32
Time data is transmitted by MIPI channel Cs H_2.Each independent MIPI channel capacities are 1.5-2.1Gbps, so four-way
The band of MIPI transmission channels is a width of：2100Mbps × 4 (passage) × 90% (efficiency)=7560Mbps.
It is described above, only the utility model patent preferred embodiment, but the protection domain of the utility model patent is simultaneously
This is not limited to, any one skilled in the art is in the scope disclosed in the utility model patent, according to this
The technical scheme of utility model patent and its inventive concept are subject to equivalent substitution or change, belong to the guarantor of the utility model patent
Protect scope.
Claims (5)
- A kind of 1. smart mobile phone image receiving system suitable for visible light communication, it is characterised in that：The system includes intelligence Phone housing main body, hardware circuit, camera, touch display screen and sensor group in smart mobile phone housing main body, Touch display screen in the smart mobile phone housing main part side button and smart mobile phone housing main body can be used in control shooting Head capture receives image；Timestamp trapping module and real-time clock mould for synchrodata is installed in the hardware circuit Block, the timestamp trapping module and real-time clock module are electrically connected by hardware circuit；The sensor group includes Imaging sensor and gyroscope；Light source led launches visible data signal, uses the smart mobile phone housing main part side button Or the touch display screen control smart mobile phone camera software in smart mobile phone housing main body sends to smartphone software layer and taken pictures Signal, camera and imaging sensor is controlled to carry out the reception of view data by the photographing signals, gyroscope obtains simultaneously Gyroscope sensor data, described image sensor and gyroscope are while data are received, by real-time clock module to described View data and gyroscope sensor data additional period stamp data, and transfer data to the timestamp trapping module, institute State timestamp trapping module to capture timestamp, the visible data after synchronization is passed through MIPI high-speed transfers to intelligent hand The CPU processing of machine.
- 2. a kind of smart mobile phone image receiving system suitable for visible light communication according to claim 1, its feature exist In：The hardware circuit is except being provided with timestamp trapping module and real-time clock module, in addition to central processor CPU, deposits Reservoir DDR SDRAM, and other external equipments can be connected.
- 3. a kind of smart mobile phone image receiving system suitable for visible light communication according to claim 2, its feature exist In：Transmission line to ensure between central processor CPU and memory DDR SDRAM keeps the continuity of impedance, eliminates reflection Phenomenon, length difference causes greatly very much channel arrival CPU or memory DDR SDRAM time to go out between preventing each data circuit Existing error, uses parallel cabling between central processor CPU and memory DDR SDRAM.
- 4. a kind of smart mobile phone image receiving system suitable for visible light communication according to claim 2, its feature exist In：Electrical connection between memory DDR SDRAM and timestamp trapping module and real-time clock module passes through with 4 independences The MIPI lines of passage are transmitted, and synchrodata is transmitted in MIPI lines high speed.
- 5. a kind of smart mobile phone image receiving system suitable for visible light communication according to claim 1, its feature exist In：Described image sensor and gyroscope are that smart mobile phone carries separate hardware, by MIPI lines by its with it is described in real time Clock module and timestamp trapping module are electrically connected and the transmission of data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721060230.2U CN207218701U (en) | 2017-08-23 | 2017-08-23 | Suitable for the smart mobile phone image receiving system of visible light communication |
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| CN201721060230.2U CN207218701U (en) | 2017-08-23 | 2017-08-23 | Suitable for the smart mobile phone image receiving system of visible light communication |
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| CN207218701U true CN207218701U (en) | 2018-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107395280A (en) * | 2017-08-23 | 2017-11-24 | 华南理工大学 | Suitable for the smart mobile phone image-receptive method and its system of visible light communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107395280A (en) * | 2017-08-23 | 2017-11-24 | 华南理工大学 | Suitable for the smart mobile phone image-receptive method and its system of visible light communication |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20190823 |
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| CF01 | Termination of patent right due to non-payment of annual fee |