CN203590358U - Wireless transmission system for digital monitoring image sensing chip - Google Patents
Wireless transmission system for digital monitoring image sensing chip Download PDFInfo
- Publication number
- CN203590358U CN203590358U CN201320739859.5U CN201320739859U CN203590358U CN 203590358 U CN203590358 U CN 203590358U CN 201320739859 U CN201320739859 U CN 201320739859U CN 203590358 U CN203590358 U CN 203590358U
- Authority
- CN
- China
- Prior art keywords
- image
- signal
- digital
- control
- monitor images
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title abstract description 13
- 238000012544 monitoring process Methods 0.000 title abstract description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000003491 array Methods 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 3
- 238000012163 sequencing technique Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000007906 compression Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Landscapes
- Studio Devices (AREA)
Abstract
The utility model relates to a wireless transmission system for a digital monitoring image sensing chip. The wireless transmission system comprises an optical assembly, a digital monitoring image sensor, an ISP image processing module, an encoder, a WIFI modem and an antenna, wherein the optical assembly is used for shooting an object to acquire a stable and clear optical image; the digital monitoring image sensor is used for converting the optical image acquired by the optical assembly into image digital signals to output; the ISP image processing module is used for carrying out secondary treatment on the inputted image digital signals; the encoder is used for encoding the image digital signals on which secondary treatment is carried out by the ISP image processor; the WIFI modem is used for carrying out carrier signal modulation on the image digital signals and transmitting the carrier signals to the antenna; and the antenna is used for emitting the carrier signals. The wireless transmission system can enable the digital monitoring image sensing chip to support WIFI remote transmission through the ISP image processing module, an H.264 encoding technology and WIFI modulation signals, thereby enabling a monitoring center to acquire clear and complete image of an active object being monitored.
Description
Technical field
The utility model relates to safety monitoring technical field, particularly a kind of wireless transmitting system for digital monitor images sensing chip.
Background technology
The wireless monitoring technology of existing digital monitor images sensing chip is that picture signal is directly modulated on radio channel, by antenna transmission, goes out, and Surveillance center, by antenna reception wireless signal, finally demodulates original picture signal.This monitor mode does not have compression loss, can not produce time delay, can guarantee picture quality, but it is only suitable for point-to-point closely single channel transmission (in 1 km), is not suitable for large scale deployment and transmission at a distance.In addition, owing to not modulating calibration process, the existing wireless transmitting system anti-interference for digital monitor images sensing chip is poor, frequency is few, the in the situation that of wireless signal circumstance complication, self can produce very large interference, causes the situations such as image confusion, loss.
Utility model content
For above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of wireless transmitting system for digital monitor images sensing chip that is suitable for long-distance transmissions.
In order to realize above-mentioned utility model object, the technical solution adopted in the utility model is as follows:
For a wireless transmitting system for digital monitor images sensing chip, comprising: optical module, digital monitor images transducer, ISP image processing module, encoder, WIFI modulator-demodulator, antenna, wherein,
Described optical module comprises camera lens and motor, for shot object, obtains stable, optical image clearly;
Described digital monitor images transducer converts image digital signal output to for the optical image that optical module is obtained;
Described ISP image processing module is for carrying out aftertreatment to the image digital signal of input;
Described encoder is for encoding to the image digital signal after the aftertreatment of ISP image processor;
Described WIFI modulator-demodulator is used for image digital signal to carry out carrier signal modulation, and carrier signal is sent to antenna;
Described antenna is used for launching carrier signal.
Further, at the above-mentioned wireless transmitting system for digital monitor images sensing chip, described digital monitor images transducer comprises: photosensor arrays, and analog functional module, 10bit-A/D modular converter, digital interface module, wherein,
Described photosensor arrays is for converting optical image to analog electronic signal;
Described analog functional module is used for analog electronic signal to be separated into R, G, the three-channel signal of B, and carries out signal gain control and white balance control;
Described 10bit-A/D modular converter is used for converting R, G, the three-channel signal of B the 10bit numerical digit signal of 0～255 scope to, and carries out black level control and A/D scope control;
Described digital interface module is for exporting 10bit numerical digit signal.
Further, at the above-mentioned wireless transmitting system for digital monitor images sensing chip, described digital monitor images transducer also comprises timing sequencer and IIC control module, wherein,
Described timing sequencer carries out photosensor arrays control, internal signal generator and the control that distributes, and the sequencing control of image frame per second, the exposure sensor time is controlled, and output image line synchronizing signal, field sync signal and pixel clock signal;
Described IIC control module is carried out the function control of imageing sensor by IIC agreement with external signal.
Preferably, at the above-mentioned wireless transmitting system for digital monitor images sensing chip, the aftertreatment that described ISP image processing module carries out image digital signal comprises carries out bad point repairing, gamma correction, sharpness adjustment to image, and carries out the image control of Automatic white balance, automatic exposure and automatic focal length together with digital monitor images transducer, motor.
Preferably, at the above-mentioned wireless transmitting system for digital monitor images sensing chip, described encoder is encoder H.264, according to standard H.264, image digital signal is encoded.
The wireless transmitting system for digital monitor images sensing chip that the utility model provides, by ISP image processing module and H.264 coding techniques and WIFI modulation signal, can make digital monitor images sensing chip support WIFI long-distance transmissions, make Surveillance center obtain the image of the monitored object in clear, complete activity.
Accompanying drawing explanation
The wireless transmitting system schematic diagram for digital monitor images sensing chip that Fig. 1 provides for the utility model one embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the wireless transmitting system for digital monitor images sensing chip that the present embodiment provides comprises: optical module, digital monitor images transducer, ISP image processing module, encoder, WIFI modulator-demodulator, antenna, wherein, described optical module comprises camera lens and motor, for shot object, obtain stable, optical image clearly; Described digital monitor images transducer converts image digital signal output to for the optical image that optical module is obtained; Described ISP image processing module is for carrying out aftertreatment to the image digital signal of input; Described encoder is for encoding to the image digital signal after the aftertreatment of ISP image processor; Described WIFI modulator-demodulator is used for image digital signal to carry out carrier signal modulation, and carrier signal is sent to antenna; Described antenna is used for launching carrier signal.
Digital monitor images transducer can comprise: photosensor arrays, and analog functional module, 10bit-A/D modular converter, digital interface module, wherein, photosensor arrays is for converting optical image to analog electronic signal; Analog functional module is used for analog electronic signal to be separated into R, G, the three-channel signal of B, and carries out signal gain control and white balance control; 10bit-A/D modular converter is used for converting R, G, the three-channel signal of B the 10bit numerical digit signal of 0～255 scope to, and carries out black level control and A/D scope control; Digital interface module is for exporting 10bit numerical digit signal.Digital monitor images transducer can also comprise timing sequencer and IIC control module, wherein, timing sequencer carries out photosensor arrays control, internal signal generator and the control that distributes, the sequencing control of image frame per second, the exposure sensor time is controlled, and output image line synchronizing signal, field sync signal and pixel clock signal; IIC control module is carried out the function control of imageing sensor by IIC agreement with external signal.IIC is Inter-Integrated Circuit (integrated circuit (IC) bus), this bus type is designed at early eighties by Philips Semiconductor Co., Ltd., mainly for connecting overall circuit (ICS), IIC is a kind of multidirectional control bus, that is to say that multiple chips can be connected under same bus structure, each chip can be served as the control source of implementation data transmission simultaneously.This mode has been simplified signal transmission bus.
ISP (Image Signal Processor), it is image processing, Main Function is that the signal of front end imageing sensor output is done to post-processed, major function has linearity rectification, noise remove, bad point removal, interpolation, white balance, auto-exposure control etc., depend on ISP and could under different optical conditions, can reduce preferably on-the-spot details, ISP technology has determined the image quality of video camera to a great extent.In the utility model, the aftertreatment that ISP image processing module carries out image digital signal comprises carries out bad point repairing, gamma correction, sharpness adjustment to image, and carries out the image control of Automatic white balance, automatic exposure and automatic focal length together with digital monitor images transducer, motor.Because subject moves, in order to keep the clear of output image, so will pass through image definition algorithm by ISP, control optical system; Simultaneously inadequate in the details ability to express of image through the digital signal of imageing sensor output, therefore carry out the definition control of image by ISP.
Encoder is encoder H.264, according to standard H.264, image digital signal is encoded.Use H.264 encoder, according to standard H.264, image digital signal is encoded, compared with other existing video encoder, under identical bandwidth, provide more outstanding image quality.By this standard, the compression efficiency under equal image quality than before standard (MPEG2) improved 2 times of left and right.H.264 maximum advantage is to have very high data compression ratio, and under the condition of equal picture quality, compression ratio is H.264 the more than 2 times of MPEG-2, is 1.5～2 times of MPEG-4.Compare with the compress technique such as MPEG-2 and MPEG-4ASP, H.264 compress technique will be saved user's download time and data traffic charge greatly.H.264 when thering is high compression ratio, also have the image of high-quality smoothness, through H.264 compression video data, in network transmission process needed bandwidth still less, also more economically.H.264 the same with former standard, be also the hybrid coding pattern that DPCM adds transition coding.But it adopts the compact design of " returning basic ", and option that need not be numerous, obtains the compression performance more much better than MEPG-4; H.264 strengthen the adaptive capacity to various channels, adopted structure and the grammer of " network friendliness ", be conducive to the processing to mistake friend and packet loss; H.264 application target wider range, can meet different rates, different resolution and the different demand of transmitting (storage) occasions.H.264 in standard, there are multiple flash of light parts, as unified VLC symbolic coding, high accuracy, multimodal Displacement Estimation, the integer transform based on 4, the coding grammer of layering etc.These measures make H.264 to obtain algorithm and have very high code efficiency, under identical reconstructed image quality, and can be than the code check of H.263 saving 50% left and right.H.264 code flow structure network adaptability is strong, has increased error resilience, can adapt to well the application of IP and wireless network.H.264 can transmit the video flowing based on networking protocol (IP) with lower data rate, at aspects such as video quality, compression efficiency and data packet recovery loss, surmount existing MPEG-2, MPEG-4 and video communication standard H.26x, be more suitable for narrow band transmission.On algorithm, substantially the doing in the proper way to H.261/H.263 similar of Moving Picture Experts Group-1 Video coding part, also adopts the measures such as the inter prediction, two-dimensional dct, VLC Run-Length Coding of motion compensation.Introduce in addition the concepts such as the interior frame (I) of frame, predictive frame (P), bi-directional predicted frames (B) and direct current frame (D), further improved code efficiency.
The above embodiment has only expressed execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (5)
1. for a wireless transmitting system for digital monitor images sensing chip, it is characterized in that, comprising: optical module, digital monitor images transducer, ISP image processing module, encoder, WIFI modulator-demodulator, antenna, wherein,
Described optical module comprises camera lens and motor, for shot object, obtains stable, optical image clearly;
Described digital monitor images transducer converts image digital signal output to for the optical image that optical module is obtained;
Described ISP image processing module is for carrying out aftertreatment to the image digital signal of input;
Described encoder is for encoding to the image digital signal after the aftertreatment of ISP image processor;
Described WIFI modulator-demodulator is used for image digital signal to carry out carrier signal modulation, and carrier signal is sent to antenna;
Described antenna is used for launching carrier signal.
2. the wireless transmitting system for digital monitor images sensing chip according to claim 1, is characterized in that, described digital monitor images transducer comprises: photosensor arrays, analog functional module, 10bit-A/D modular converter, digital interface module, wherein
Described photosensor arrays is for converting optical image to analog electronic signal;
Described analog functional module is used for analog electronic signal to be separated into R, G, the three-channel signal of B, and carries out signal gain control and white balance control;
Described 10bit-A/D modular converter is used for converting R, G, the three-channel signal of B the 10bit numerical digit signal of 0～255 scope to, and carries out black level control and A/D scope control;
Described digital interface module is for exporting 10bit numerical digit signal.
3. the wireless transmitting system for digital monitor images sensing chip according to claim 2, is characterized in that, described digital monitor images transducer also comprises timing sequencer and IIC control module, wherein,
Described timing sequencer carries out photosensor arrays control, internal signal generator and the control that distributes, and the sequencing control of image frame per second, the exposure sensor time is controlled, and output image line synchronizing signal, field sync signal and pixel clock signal;
Described IIC control module is carried out the function control of imageing sensor by IIC agreement with external signal.
4. the wireless transmitting system for digital monitor images sensing chip according to claim 3, it is characterized in that, the aftertreatment that described ISP image processing module carries out image digital signal comprises carries out bad point repairing, gamma correction, sharpness adjustment to image, and carries out the image control of Automatic white balance, automatic exposure and automatic focal length together with digital monitor images transducer, motor.
5. the wireless transmitting system for digital monitor images sensing chip according to claim 4, is characterized in that, described encoder is encoder H.264, according to standard H.264, image digital signal is encoded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739859.5U CN203590358U (en) | 2013-11-20 | 2013-11-20 | Wireless transmission system for digital monitoring image sensing chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739859.5U CN203590358U (en) | 2013-11-20 | 2013-11-20 | Wireless transmission system for digital monitoring image sensing chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590358U true CN203590358U (en) | 2014-05-07 |
Family
ID=50588199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320739859.5U Expired - Lifetime CN203590358U (en) | 2013-11-20 | 2013-11-20 | Wireless transmission system for digital monitoring image sensing chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203590358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103561248A (en) * | 2013-11-20 | 2014-02-05 | 太仓思比科微电子技术有限公司 | Wireless transmission system for digital monitoring image sensing chip |
-
2013
- 2013-11-20 CN CN201320739859.5U patent/CN203590358U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103561248A (en) * | 2013-11-20 | 2014-02-05 | 太仓思比科微电子技术有限公司 | Wireless transmission system for digital monitoring image sensing chip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9667865B2 (en) | Optical demodulation using an image sensor | |
| CN104683762B (en) | A kind of wireless adaptive transmission method of UAV Video and wireless transmitting system occupying ratio based on buffering | |
| KR101677663B1 (en) | Method and device for implementing analog high-definition image capturing | |
| CN103561248A (en) | Wireless transmission system for digital monitoring image sensing chip | |
| CN206585666U (en) | Suitable for the unmanned plane wireless image transmission system of long-distance transmissions | |
| CN104702906B (en) | High-definition monitoring video system and its control method | |
| CN203435086U (en) | A network camera based on cloud storage control | |
| CN101771797B (en) | Method and apparatus for generating a compressed file, and terminal comprising the apparatus | |
| CN109391839B (en) | Self-adaptive HDMI (high-definition multimedia interface) video transmission device | |
| CN203590358U (en) | Wireless transmission system for digital monitoring image sensing chip | |
| CN205283706U (en) | High definition simulation composite video signal transmission system | |
| CN212752489U (en) | Wireless image transmission system based on source channel joint coding and decoding | |
| CN204392420U (en) | A kind of image recording apparatus, smart machine and image recording system | |
| US20130057711A1 (en) | Binary cdma image-transceiving system directly connected to an image capture device | |
| CN109661818A (en) | Image processing equipment, image processing method and program | |
| CN100586179C (en) | Intelligent domestic gateway presentation video control method and system thereof | |
| Sturniolo et al. | ROI assisted digital signal processing for rolling shutter optical camera communications | |
| CN103067708B (en) | Bell template digital image coder and decoder (CODEC) method based on W-Z structure | |
| US20220166922A1 (en) | Image Capture Module and Electronic Terminal | |
| CN209134513U (en) | A kind of remote-wireless web camera based on mechanics of communication | |
| KR101179127B1 (en) | wireless transmission control method for high resolution picture image for vehicle | |
| CN107911631A (en) | A kind of multiple wireless video monitoring system | |
| Li et al. | Digital image processing in led visible light communications using mobile phone camera | |
| CN106534774A (en) | Image transmission system | |
| CN212936068U (en) | Audio and video recording and wireless transmission device of high compression coding technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |