CN108282600A - Refrigerator inside image capture apparatus and refrigerator - Google Patents

Refrigerator inside image capture apparatus and refrigerator Download PDF

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Publication number
CN108282600A
CN108282600A CN201710011252.8A CN201710011252A CN108282600A CN 108282600 A CN108282600 A CN 108282600A CN 201710011252 A CN201710011252 A CN 201710011252A CN 108282600 A CN108282600 A CN 108282600A
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CN
China
Prior art keywords
image
refrigerator
data
unit
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710011252.8A
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Chinese (zh)
Inventor
何祎鑫
李鲁
邬栋
张�诚
曾祥云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Jingdong Century Trading Co Ltd
Beijing Jingdong Shangke Information Technology Co Ltd
Original Assignee
Beijing Jingdong Century Trading Co Ltd
Beijing Jingdong Shangke Information Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Jingdong Century Trading Co Ltd, Beijing Jingdong Shangke Information Technology Co Ltd filed Critical Beijing Jingdong Century Trading Co Ltd
Priority to CN201710011252.8A priority Critical patent/CN108282600A/en
Publication of CN108282600A publication Critical patent/CN108282600A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/2251Constructional details
    • H04N5/2253Mounting of pick-up device, electronic image sensor, deviation or focusing coils
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
    • H04N5/23203Remote-control signaling for television cameras, cameras comprising an electronic image sensor or for parts thereof, e.g. between main body and another part of camera

Abstract

Present disclose provides a kind of refrigerator inside image capture apparatus, which includes:Imaging sensor, for converting the image of shooting to a data image signal;Power supply, for powering to digital signal processing chip and microcontroller;Microcontroller, for initializing described image sensor after the power initiation;Digital signal processing chip, for optimizing the data image signal;LVDS interface chip, for transmitting initialization data when the microcontroller initializes described image sensor.The disclosure saves the initialization time of imaging sensor, and then can improve efficiency.

Description

Refrigerator inside image capture apparatus and refrigerator
Technical field
This technology is related to electronic technology field more particularly to a kind of refrigerator inside image capture apparatus and one kind includes ice The refrigerator of case internal image acquisition equipment.
Background technology
With the high speed development of mobile Internet, image technique becomes increasingly popular in the intelligentized application of household.Such as it can be with It takes pictures to refrigerator, the photo of shooting can be supplied to user to check or for providing food analysis and food based on photo The functions such as management.Current market sales of intelligent refrigerator is embedded tablet computer, the photo shot by tablet computer mostly The service of some displayings is provided, for example understands size of food, shelf-life, menu etc..
It is common at present to there is static state to take pictures and dynamically take pictures two kinds the mode that refrigerator is taken pictures.The realization that dynamic is taken pictures Scheme is mainly based upon USB (Universal Serial Bus, universal serial bus) camera, and image transfer mode uses frame Pattern and the mode of Mass Data Storage Facility carry out image transmitting, with reference to shown in figure 1.There are following for both realization methods Problem:One, under working environment harsh in refrigerator, USB camera charge for a long time or standby mode under, the service life is shorter, is taking the photograph When as head cold start-up, it cannot be guaranteed that driving loads and successfully can not meet the operative scenario relatively high to requirement of real-time every time; Two, the transmission mode of frame pattern is limited to the bandwidth limitation of USB, captures the object quickly moved and will appear trailing phenomenon;Three, exist In the application of refrigerator, there are all multi-jamming sources, such as the interference of compressor, this province of power supply ripple and noise jamming, to data Transmission stability interfere, be susceptible to frame losing phenomenon;Four, motion image blurring is solved by way of mechanical shutter Method largely promotes refrigerator cost.
Therefore, it is necessary to for existing refrigerator inside dynamic in background technology take pictures present in initialization time it is long, The problems such as camera short life, hangover of taking pictures, data frame losing, provides a kind of refrigerator inside image capture apparatus.
It should be noted that information disclosed in above-mentioned background technology part is only used for reinforcing the reason to the background of the disclosure Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Invention content
The disclosure is designed to provide a kind of refrigerator inside image capture apparatus, and then overcomes at least to a certain extent One or more problem caused by the limitation and defect of the relevant technologies.
Other characteristics and advantages of the disclosure will be apparent from by the following detailed description, or partially by the disclosure Practice and acquistion.
According to the disclosure in a first aspect, provide a kind of refrigerator inside image capture apparatus, including:
Imaging sensor is connect with a power supply and a digital signal processing chip, and described image sensor will be for that will shoot Image be converted into a data image signal;
The power supply is connect with the digital signal processing chip and a microcontroller, and the power supply is used for described Imaging sensor, the digital signal processing chip and microcontroller power supply;
The microcontroller is connect with the power supply and the digital signal processing chip, for being opened in the power supply Described image sensor is initialized after dynamic;
The digital signal processing chip is connect with the power supply, described image sensor and a LVDS interface chip, The digital signal processing chip is for optimizing the data image signal;
The LVDS interface chip, connect with the digital signal processing chip, is used in the microcontroller to described Initialization data is transmitted when imaging sensor is initialized.
In a kind of exemplary embodiment of the disclosure, the refrigerator inside image capture apparatus further includes:
Image acquisition units, for acquiring the data image signal and being handled;
Sensor unit, for monitoring the photo angle of described image sensor to ensure that photo angle is identical;
Image processing unit removes the data image signal noise for the principle based on partial differential equation.
In a kind of exemplary embodiment of the disclosure, the refrigerator inside image capture apparatus further includes:
Data transmission unit, in described image sensor, the digital signal processing chip, the LVDS interface core The data image signal is transmitted between piece and described image collecting unit.
In a kind of exemplary embodiment of the disclosure, the data transmission unit further includes:
Data-transmission mode unit, the mode setting for that will transmit described image signal data are stream mode;
Data format unit, for setting the format of the described image signal data of transmission to BT656 formats.
In a kind of exemplary embodiment of the disclosure, described image sensor chip is CMOS chip.
In a kind of exemplary embodiment of the disclosure, the refrigerator inside image capture apparatus further includes:
First detection unit, for detecting whether the power supply powers, and in the power supply power supply, the microcontroller Described image sensor is initialized;
Second detection unit, for detect whether upon initialization need take pictures, detect need to take pictures when, start Described image sensor.
In a kind of exemplary embodiment of the disclosure, the refrigerator inside image capture apparatus further includes:
Aperture adjustment unit, for adjusting aperture size to adjust light-inletting quantity;
Electronic shutter adjustment unit, for adjusting electronic shutter speed to match with the aperture size.
In a kind of exemplary embodiment of the disclosure, the refrigerator inside image capture apparatus further includes:
Light source unit, the light source are area source, are arranged on front side of refrigerator side wall.
In a kind of exemplary embodiment of the disclosure, described image collecting unit further includes:
Clock unit, the clock setting for that will acquire image data are synchronised clock.
According to the second aspect of the disclosure, a kind of refrigerator is provided, the refrigerator is caught including at least the refrigerator inside image Obtain device.Due in refrigerator inside image capture apparatus used in the disclosure, by using microcontroller to imaging sensor It is initialized, avoids the process of conventional USB device load driver, to save the initialization time of imaging sensor, And then efficiency can be improved.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not The disclosure can be limited.
Description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, the above and other feature and advantage of the disclosure will become It is more obvious.It should be evident that the accompanying drawings in the following description is only some embodiments of the present disclosure, for the common skill in this field For art personnel, without creative efforts, other drawings may also be obtained based on these drawings.In attached drawing In:
Fig. 1 schematically shows a kind of traditional image delivering system figure in disclosure exemplary embodiment;
Fig. 2 schematically shows a kind of refrigerator inside image capture apparatus figure in disclosure exemplary embodiment;
Fig. 3 schematically shows a kind of camera shooting of refrigerator inside image capture apparatus after optimization in disclosure exemplary embodiment Header structure figure;
Fig. 4 schematically shows a kind of refrigerator inside image capture system structure chart in disclosure exemplary embodiment.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be real in a variety of forms It applies, and is not understood as limited to embodiment set forth herein;On the contrary, thesing embodiments are provided so that the disclosure will be comprehensively and complete It is whole, and the design of example embodiment is comprehensively communicated to those skilled in the art.Identical reference numeral indicates in figure Same or similar part, thus repetition thereof will be omitted.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner In example.In the following description, many details are provided to fully understand embodiment of the disclosure to provide.However, It will be appreciated by persons skilled in the art that can be with technical solution of the disclosure without one in the specific detail or more It is more, or other methods, constituent element, material, device, step may be used etc..In other cases, it is not shown in detail or describes Known features, method, apparatus, realization, material or operation are to avoid fuzzy all aspects of this disclosure.
In this example embodiment, a kind of refrigerator inside image capture apparatus is provided first, it, should with reference to shown in Fig. 2, Fig. 3 Refrigerator inside image capture apparatus 200 may include:Imaging sensor 201, power supply 202, microcontroller 203, at digital signal Manage chip 204, LVDS interface chip 205.Wherein:
Imaging sensor 201 is connect with a power supply and a digital signal processing chip, and described image sensor can be used for Convert the image of shooting to a data image signal;
The power supply 202 is connect with the digital signal processing chip and a microcontroller, and the power supply can be used for It powers to described image sensor, the digital signal processing chip and the microcontroller;
The microcontroller 203 connect with the power supply and the digital signal processing chip, can be used for described Described image sensor is initialized after power initiation;
The digital signal processing chip 204 connects with the power supply, described image sensor and a LVDS interface chip It connects, the digital signal processing chip can be used for optimizing the data image signal;
The LVDS interface chip 205, connect with the digital signal processing chip, can be used in the microcontroller Initialization data is transmitted when being initialized to described image sensor.
In the refrigerator inside image capture apparatus that a kind of embodiment of the disclosure is provided, by using the microcontroller Described image sensor is initialized, the process of conventional USB device load driver is avoided, to save image sensing The initialization time of device, and then efficiency can be improved.
Next, with reference to shown in Fig. 2, Fig. 3 to each section of the refrigerator inside image capture apparatus in this example embodiment It is described in detail.
Imaging sensor 201 is connect with a power supply and a digital signal processing chip, and described image sensor can be used for Convert the image of shooting to a data image signal.
In this example embodiment, imaging sensor is a kind of semiconductor chip, and surface includes hundreds of thousands to hundreds of Ten thousand photodiode just will produce charge when the photodiode on surface is irradiated by light.Imaging sensor can be used for Convert the optical signal on surface to electric signal by the photodiode on surface, by internal digital analog converter by electric signal Be converted to data image signal.In general, two kinds of chips may be used in imaging sensor, and one is charged coupled device chips CCD (Charge Couple Device, charge coupling device), another kind is CMOS chips CMOS (Complementary Metal Oxide Semiconductor, metal-oxide semiconductor (MOS)).Two kinds of different chips are respectively right The Exposure mode answered is respectively:The Global Shutter modes that CCD chip is exposed simultaneously using a frame chip, CMOS chip are adopted With the Rolling Shutter modes being exposed line by line.In this example embodiment, using CMOS chip image sensing Device.The charge of each pixel can be converted into voltage by cmos image sensor, just amplified before reading, utilize the electricity of 3.3V Source can be driven, therefore power consumption is relatively low;Cmos sensor can be high with the conformability of peripheral circuit, can be by digital-to-analogue conversion Device is integrated with signal processor, and chip volume is made substantially to reduce.In this example embodiment, imaging sensor can have One or more, multiple images sensor can be carried out at the same time to initialize and can open simultaneously and take pictures, so as to Improve efficiency.
The power supply 202 is connect with the digital signal processing chip and a microcontroller, and the power supply can be used for It powers to described image sensor, the digital signal processing chip and the microcontroller.In this example embodiment, electricity Source is connected with the modules of above-mentioned apparatus, for being supplied to imaging sensor, digital signal processing chip and microcontroller Electricity.Above-mentioned power supply can be the plug type power with charging wire, can also be embedded charging battery type power supply.In electric power starting Afterwards, microcontroller initializes imaging sensor.
The microcontroller 203 connect with the power supply and the digital signal processing chip, can be used for described Described image sensor is initialized after power initiation.
In this example embodiment, microcontroller, that is, microcontroller can pass through I2C(Inter-Integrated Circuit, twin wire universal serial bus) bus connect with peripheral equipment.After power initiation, microcontroller receives and response system hair The initialization directive gone out executes initialization to imaging sensor.When microcontroller initializes imaging sensor, due to Chip is that free drive is dynamic, avoids the operation of the load driver of similar USB device, saves what imaging sensor was initialized Time, and then improve initialization efficiency.
The digital signal processing chip 204 connects with the power supply, described image sensor and a LVDS interface chip It connects, the digital signal processing chip can be used for optimizing the data image signal.
In this example embodiment, digital signal processing chip can be by the mathematical computations of a series of complex, to image The data image signal that sensor generates optimizes processing, and the data obtained from by image sensor chip are in time rapidly Simultaneously refreshed image sensor chip, therefore the quality of digital signal processing chip in memory is passed to, directly determines the figure of shooting The picture quality of picture, such as color saturation, clarity and fluency.Digital signal processing chip can be applied at signal The fields such as reason, image procossing, acoustic processing.Digital signal processing chip can use dedicated DSP (Digital Signal Process, Digital Signal Processing) chip realization, it can also be realized with general programmable digital signal processor.
The LVDS interface chip 205, connect with the digital signal processing chip, can be used in the microcontroller Initialization data is transmitted when being initialized to described image sensor.
In this example embodiment, LVDS (Low-Voltage Differential Signaling, low voltage difference letter Number) interface can using low-down voltage swing by difference carry out data transmission, due to differential signal itself have suppression Common-mode signal processed and the characteristics of reinforce difference mode signal, therefore the noise in picture signal can be inhibited.Environment in refrigerator compares Complexity, there are many interference sources, such as the interference of compressor, power supply itself ripple and noise interference, connect using LVDS Oral instructions transmission of data can amplify the signal of needs and inhibit the interference of noise, to achieve the effect that remove picture noise.Separately Outside, LVDS interface chip is to exempt from driving chip, when LVDS interface chip is loaded into equipment, avoids the upper of similar USB device Electric drive is loaded into the process of equipment, therefore saves the time that imaging sensor is initialized.
In addition, in this example embodiment, above-mentioned refrigerator inside image capture apparatus can also include:
Image acquisition units can be used for acquiring the data image signal and be handled;
Sensor unit can be used for monitoring the photo angle of described image sensor to ensure that photo angle is identical;
Image processing unit can be used for the principle based on partial differential equation and remove the data image signal noise.
In this example embodiment, independent CSI (the CMOS Sensor of two, band may be used in image acquisition units Interface, cmos sensor utilizing camera interface) the Andriod platforms of interface realize the acquisition of image data.With reference to Fig. 4 Shown in, the picture that imaging sensor is shot in camera can be transferred to the image in image acquisition units by LVDS interface Decoder decoder, image decoder can be decoded data image signal, then be transferred to Andriod by CSI interface Platform is shown.Such as when handling the image file of jpeg format, imaging sensor acquires image information, and will adopt The image information collected is converted into digital image data, and digital image data is transferred to digital signal processing chip by LVDS interface Processing is optimized, then by the image decoder in the digital data transmission to image acquisition units after optimization processing to acquisition Image data carries out JPEG compression decoding, finally sends decoded image data to display unit.
In this example embodiment, sensor unit can be angular transducer either position sensor, can be used for The photo angle of imaging sensor is identical to ensure the angle for shooting refrigerator inside object every time in detection camera, with accordingly more The comparison for effect of taking pictures is realized well.
In this example embodiment, image processing unit can be removed the excellent of picture noise to the image effect of shooting Change is handled.Theoretically noise is uncertain, can only understand the random error of noise with probabilistic method, therefore can be with Using random process, i.e., its feature is counted and described with its probability-distribution function and probability density function.For image Edge is easy the even problem of uneven illumination, using the method for the removal picture noise of partial differential equation.Partial differential equation have each The characteristics of anisotropy, therefore while removing picture noise, the details of image, such as edge and texture can be made to be protected Shield, to make whole image seem more smooth, color, brightness are more uniform, and the image effect of shooting is more preferable.In addition, Filter in spatial domain, transform domain filtering, the calculus of variations and morphology scratch filter scheduling algorithm removal picture noise may be used.
In addition, in this example embodiment, above-mentioned refrigerator inside image capture apparatus can also include:
Data transmission unit can be used for connecing in described image sensor, the digital signal processing chip, the LVDS The data image signal is transmitted between mouth chip and described image collecting unit.
In this example embodiment, data transmission unit can transmit initialization data by LVDS interface chip, also may be used With the transmission data between imaging sensor and digital signal processing chip, the data transmission in imaging sensor can also be arrived Image acquisition units.LVDS interface may be used in data transmission, since LVDS is low-voltage differential signal, using extremely low electricity Press amplitude of oscillation high speed differential transmission data, enhancing difference mode signal reduces common-mode signal, therefore by LVDS interface by image sensing Power consumption and noise can be reduced to minimum by the data image signal that device generates when being transferred to image acquisition units, to realize The low error rate of image data transmission, ensures the integrality of signal.In this more complicated environment of refrigerator, connect by LVDS Port transmission image data can effectively reduce the noise of signal.The transmission medium of LVDS can be copper PCB lines, It can be balanced cable.
In addition, in this example embodiment, the data transmission unit of above-mentioned refrigerator inside image capture apparatus can also wrap It includes:
Data-transmission mode unit, the mode setting that can be used for transmit described image signal data are stream mode;
Data format unit can be used for setting the format of the described image signal data of transmission to BT656 formats.
In this example embodiment, in order to avoid due to being limited by USB bandwidth when traditional frame pattern progress image transmitting The frame losing problem of data transmission is made and caused, stream mode may be used and carry out data transmission.Stream mode can be that progressive streaming passes It is defeated, can also be Real Time Streaming, due to will not can be complete by bandwidth limitations similar USB, data Transmission, ensures the integrality of signal;In transmission data, the not limitation of bandwidth, sound, image or animation etc. can it is continuous, Transmission in real time, pending data can be watched after reaching certain quantity, can shorten user and need the time waited for.In addition, Field mode or other patterns can also be used to carry out data transmission.
It, can be in order to solve the trailing phenomenon that the when of taking pictures into Mobile state to refrigerator inside occurs in this example embodiment It sets the data format of picture signal to BT656 formats, the data format of picture signal can also be set to other data Format.For example, through simulation analysis, the HD video requirement for transmitting 720P ensures that frame per second is the Image Acquisition speed of 30 frames/s, one As USB2.0 interfaces camera with full speed 480Mbps/s speed transmit video when, frame per second between 15 frames/s-25 frames/s dynamic Variation shoots the object quickly moved and will appear hangover now since the requirement that Image Acquisition speed is 30 frames/s is not achieved As.Rate is carried out data transmission faster using BT656 interfaces, frame per second can meet Image Acquisition under the clock frequency of 27Mhz Speed is the requirement of 30 frames/s, when opening refrigerator doors and taking pictures to inside refrigerator door object, reduces generation image and drags The risk of tail.
In addition, in this example embodiment, above-mentioned refrigerator inside image capture apparatus can also include:Described image senses Device chip can be CMOS chip.
In this example embodiment, CMOS chip may be used in image sensor chip.Each picture first in CMOS chip The amplifier of element is relatively low to bandwidth requirement, greatly reduces the power consumption of chip;In addition, CMOS is integrated on semi-conducting material, The techniques of semiconductor integrated circuit such as its production technology and computer chip and storage device are identical, therefore produce the cost of CMOS Want much lower;D/A converting circuit, image-signal processor etc. can be integrated on chip piece by CMOS chip simultaneously, be integrated Degree is very high, and reading speed is fast, therefore the low side camera product in the camera arrangement of similar such as refrigerator inside, photosensitive member Part is exactly mainly CMOS chip.
In addition, in this example embodiment, above-mentioned refrigerator inside image capture apparatus can also include:
Aperture adjustment unit can be used for adjusting aperture size to adjust light-inletting quantity;
Electronic shutter adjustment unit can be used for adjusting electronic shutter speed to match with the aperture size.
In this example embodiment, the pass of the data image signal generated can be obtained by cmos image sensor chip JPEG compression is carried out after key frame again, such data transfer mode reduces CPU (Central Processing Unit, center Processor) load factor.The picture that cmos image sensor is quickly moved in shooting, such as shoot refrigerator inside image in dynamic When, refrigerator doors are rotated with certain speed, may will produce " jelly effect " " cause image to generate distortion, for example tilt, wave Phenomena such as indefinite or Partial exposure.These problems can be solved by way of adding strobe light unit and mechanical shutter, But bad user experience can be brought while increasing cost.
In this example embodiment, in order to solve the pattern distortion generated when dynamic shoots refrigerator inside image, Ke Yitong The speed of the size and electronic shutter that adjust aperture is crossed to solve exposure problems.Aperture may be used for example, being obtained by experiment F2.0 increases light-inletting quantity, while may be used in the photosensitive sensor of low-light (level) and the electronic shutter speed capture movement of 4ms The clearer image of object, the effective exposure of image shot to needs is realized with this.It, can also in this example embodiment By adjusting aperture size and electronic shutter speed exposure problems are solved to the numerical value arbitrarily to match.
In addition, in this example embodiment, above-mentioned refrigerator inside image capture apparatus can also include:
Light source unit, the light source are area source, are arranged on front side of refrigerator side wall.
In this example embodiment, in order to reach effect of preferably taking pictures, while the light-source system of refrigerator inside is improved. The point light source at conventional refrigerator inner top either back can be adjusted to the area source on front side of refrigerator side wall, area source can be LED (Light Emitting Diode, light emitting diode) area source of round, rectangular or other arbitrary shapes.Area source Diffusing reflection of the light sent out Jing Guo refrigerator inside so that the brightness sent out is evenly.It is obtained by experiment, it will be in conventional refrigerator The point light source at top either back is adjusted to the area source on front side of refrigerator side wall and area source illumination can reach in 800Lm More satisfactory effect of taking pictures.
In addition, in this example embodiment, above-mentioned refrigerator inside image capture apparatus can also include:
First detection unit, can be used for detecting whether the power supply powers, and in the power supply power supply, to the figure As sensor is initialized;
Second detection unit, can be used for detecting whether upon initialization need take pictures, detect need to take pictures when, Start described image sensor.
In this example embodiment, power supply can be all module for power supply, state refrigerator inside image capture dress in use Before setting, first detection unit can detect whether power supply is opened first;After electric power starting, microcontroller can be to image Sensor is initialized, and LVDS interface chip can transmit the data that imaging sensor is initialized.First detection unit It can detect whether power supply is opened by carrying out a cycle to the either other electrical characteristics of supply voltage.In imaging sensor During being initialized, since LVDS interface chip is to exempt from driving chip, avoids USB device and be loaded into equipment The process for filling driving, saves initialization time.In the disclosure, refrigerator inside image capture system can include multiple camera shootings Head unit, and each camera unit is carried out at the same time initial work, improves the efficiency of initialization, when shortening initialization Between.Through statistics, when microcontroller control imaging sensor is initialized, 400ms can complete initial work, than passing System USB camera saves the initialization time of about 1s.
In this example embodiment, in order to solve traditional USB camera due to being chronically at the longevity caused by standby mode The shorter problem of life, after imaging sensor initialization, second detection unit can detect whether to take pictures, can be with By recycling the instruction that system is sent out, judge whether to receive photographing instruction;When detecting photographing instruction, start figure As sensor is taken pictures.For example, when judging to take pictures, multiple images sensor in a dormant state, only exists When judging to need to take pictures, imaging sensor can just turn on into working condition, and it is long-term that this mode avoids imaging sensor It is in standby, so as to so that imaging sensor longer life expectancy, when further can ensure that system has stable suspend mode Between, improve the stability of system.
In addition, in this example embodiment, above-mentioned image acquisition units can also include:
Clock unit, the clock setting that can be used for acquire image data are synchronised clock.
In this example embodiment, the mode that synchronised clock may be used carries out the acquisition of image data.Synchronous transfer with Data frame is unit transmission data, and the frame synchronizing signal of character style or position form may be used.When with data frame transfer data When signal, in order to ensure to transmit the integrality of signal, it can require image acquisition units that can identify each character (or data frame) Start-stop to induction signal, to ensure that beginning and end reads signal at the time of correct;In addition to this, it may also require that image is adopted The clock and imaging sensor for collecting unit keep identical frequency, identical with the signal element number that guarantor unit's time reads, from And ensure the accuracy of transmission signal.When with data frame transfer data-signal, it can be added before every frame data signals Clock sync signal, the clock to control and receive device synchronizes, to solve the problems, such as the synchronous acquisition of image/video.
Further, in this example embodiment, a kind of refrigerator is additionally provided, which includes at least in above-mentioned refrigerator Portion's image capture apparatus.Since used refrigerator inside acquisition equipment can be by using the microcontroller to described image Sensor is initialized, and the process of conventional USB device load driver is avoided, to save the initialization of imaging sensor Time, and then efficiency can be improved.
Block diagram shown in attached drawing is only functional entity, not necessarily must be corresponding with physically separate entity. I.e., it is possible to realize these functional entitys using software form, or these are realized in the module of one or more softwares hardening A part for functional entity or functional entity, or realized in heterogeneous networks and/or processor device and/or microcontroller device These functional entitys.
It should be noted that although being referred to several modules or list for acting the equipment executed in above-detailed Member, but this division is not enforceable.In fact, according to embodiment of the present disclosure, it is above-described two or more The feature and function of module either unit can embody in a module or unit.Conversely, an above-described mould Either the feature and function of unit can be further divided into and embodied by multiple modules or unit block.
Through the above description of the embodiments, those skilled in the art is it can be readily appreciated that example described herein is implemented Mode can also be realized by software realization in such a way that software is in conjunction with necessary hardware.Therefore, according to the present invention The technical solution of embodiment can be expressed in the form of software products, the software product can be stored in one it is non-volatile Property storage medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) in or network on, including some instructions are so that a calculating Equipment (can be personal computer, server, electronic equipment or network equipment etc.) is executed according to embodiment of the present invention Method.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or Adaptive change follow the general principles of this disclosure and include the undocumented common knowledge in the art of the disclosure or Conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by claim It points out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the attached claims.

Claims (10)

1. a kind of refrigerator inside image capture apparatus, which is characterized in that including:
Imaging sensor is connect with a power supply and a digital signal processing chip, the figure that described image sensor is used to shoot As being converted into a data image signal;
The power supply is connect with the digital signal processing chip and a microcontroller, and the power supply is used for described image Sensor, the digital signal processing chip and microcontroller power supply;
The microcontroller is connect with the power supply and the digital signal processing chip, for after the power initiation Initialize described image sensor;
The digital signal processing chip is connect, the digital signal with described image sensor and a LVDS interface chip Processing chip is for optimizing the data image signal;
The LVDS interface chip, connect with the digital signal processing chip, is used in the microcontroller to described image Initialization data is transmitted when sensor is initialized.
2. refrigerator inside image capture apparatus according to claim 1, which is characterized in that described device further includes:
Described image collecting unit, for acquiring the data image signal and being handled;
The sensor unit, for monitoring the photo angle of described image sensor to ensure that photo angle is identical;
Image processing unit removes the data image signal noise for the principle based on partial differential equation.
3. refrigerator inside image capture apparatus according to claim 1 or 2, which is characterized in that described device further includes:
Data transmission unit, for described image sensor, the digital signal processing chip, the LVDS interface chip with And the data image signal is transmitted between described image collecting unit.
4. refrigerator inside image capture apparatus according to claim 3, which is characterized in that the data transmission unit also wraps It includes:
Data-transmission mode unit, the mode setting for that will transmit described image signal data are stream mode;
Data format unit, for setting the format of the described image signal data of transmission to BT656 formats.
5. refrigerator inside image capture apparatus according to claim 1, which is characterized in that described image sensor chip is CMOS chip.
6. refrigerator inside image capture apparatus according to claim 1, which is characterized in that described device further includes:
First detection unit, for detecting whether the power supply powers, and in the power supply power supply, the microcontroller is to institute Imaging sensor is stated to be initialized;
Second detection unit needs to take pictures for detecting whether upon initialization, detect need to take pictures when, described in startup Imaging sensor.
7. refrigerator inside image capture apparatus according to claim 1, which is characterized in that described device further includes:
Aperture adjustment unit, for adjusting aperture size to adjust light-inletting quantity;
Electronic shutter adjustment unit, for adjusting electronic shutter speed to match with the aperture size.
8. refrigerator inside image capture apparatus according to claim 1, which is characterized in that described device further includes:
Light source unit, the light source are area source, are arranged on front side of refrigerator side wall.
9. refrigerator inside image capture apparatus according to claim 2, which is characterized in that described image collecting unit also wraps It includes:
Clock unit, the clock setting for that will acquire image data are synchronised clock.
10. a kind of refrigerator, which is characterized in that including according to refrigerator inside image capture as described in any one of claim 1 to 9 Device.
CN201710011252.8A 2017-01-06 2017-01-06 Refrigerator inside image capture apparatus and refrigerator Pending CN108282600A (en)

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