CN101540889A - Mobile video acquisition platform - Google Patents
Mobile video acquisition platform Download PDFInfo
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- CN101540889A CN101540889A CN 200810086347 CN200810086347A CN101540889A CN 101540889 A CN101540889 A CN 101540889A CN 200810086347 CN200810086347 CN 200810086347 CN 200810086347 A CN200810086347 A CN 200810086347A CN 101540889 A CN101540889 A CN 101540889A
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Abstract
The invention discloses a mobile video acquisition platform, which comprises a CCD digital camera, a DSP digital processor, a CPLD complex programmable logic chip and an Ethernet interface circuit. By adopting embedded software and hardware technology, a video processing DSP chip and a mobile communication GPRS/EDGE/CDMA1X/3G chip are integrated into integrative equipment so as to achieve the functions of real-time video acquisition, coding compression, wireless network transmission, wireless alarm and the like. On the premise of according with international latest video compression standard H.264/AVS, the mobile video acquisition platform can automatically adjust data bit rate according to the change of mobile communication network bandwidth, can automatically restart when the network is disconnected, and also has the characteristics of simple installation, low cost, advanced technical routes, and the like.
Description
Technical field
The present invention relates to a kind of embedded soft, hardware device, specifically, relate to a kind of Video processing platform that possesses video acquisition, encoding compression, mobile communication, Network Transmission and radio alarming function.
Background technology
Video monitoring mainly contains cabled digital video monitoring and mobile video monitor two big classes at present.The digital video monitoring mode of current employing cable network is in bank, traffic, all trades and professions such as public security obtain to use widely, in national economy and people's lives, brought into play enormous function, its advantage is that the image transmission is stable, to the Image Data Compression rate is that compress technique is less demanding, image frame is clear, its disadvantage is that wiring is time-consuming, when changing, wants the control point rewiring, the cost height, the industry that the incompatibility control point moves at any time, and at present a lot of industries press for the system that can carry out video monitoring whenever and wherever possible easily, need change or not exist when mobile the problem of wiring in the control point, audio-video collection and watch the restriction that is not subjected to the geographical position.
Yet in video monitoring system application places diversified day by day today, in some particular locality, the place that can't arrive as cable network, or specific environment (as personnel can't be approaching hazardous area or polluted place), and in moving process to the demand of video monitoring, as bank note transport car, public security 110 police cars or emergency repair etc., mobile video monitor system can be finished the work well.Utilize mobile communications network, can realize that mobility is strong, wide coverage, at a high speed, targets such as high-quality, low cost, the user need not the system of oneself building, making video monitoring service move towards mobile monitor from fixing monitoring becomes possibility.But the present domestic company that is engaged in the mobile video monitor technological development, technology path all is to connect a video acquisition compression service device with analog video camera, uploads data to central server by a wireless router based on mobile communications network then.
Summary of the invention
The present invention summing up present domestic existing monitoring mode, using for reference under the prerequisite of international technology development trend, domestic market demand, domestic technique environment, proposes a kind of new mobile video acquisition platform just.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of mobile video acquisition platform comprises CCD digital camera, DSP digital processing unit, CPLD complex programmable logic chip and Ethernet interface circuit.The CCD digital camera links to each other with the DSP digital processing unit, the DSP numerical processor chip loads by the FLASH chip and meets the h.264 algorithm of video compression standard and AVS audio frequency and video compression standard, vision signal is compressed handled after the Ethernet interface circuit outputs to the RT45 interface; The DSP digital processing unit links to each other with the RS232 serial interface circuit, and serial ports one connects PC, as the plateform system parameter passage is set; Serial ports two connects mobile communication module, and data are sent to central server; The DSP digital processing unit links to each other with the CPLD CPLD, realize disposing apace other peripheral hardware and use and other sensing equipments, such as warning system etc. to carry out input/output information mutual.
Described mobile video acquisition platform, its wireless communication module are GPRS chipset and peripheral devices.
Described mobile video acquisition platform, its wireless communication module are EDGE chipset and peripheral devices.
Described mobile video acquisition platform, its wireless communication module are CDMA chipset and peripheral devices.
Described mobile video acquisition platform, its wireless communication module are 3G chipset and peripheral devices.
Described mobile video acquisition platform, the external SDRAM chip of its DSP digital processing unit.
Described mobile video acquisition platform, its CPLD CPLD links to each other with electrical equipment control transducer, alarm sensor, temperature sensor and humidity sensor.
Mobile video monitor system of the present invention is perfect, the high efficiency mobile video acquisition platform of a cover, mobile communication wireless interconnection technique, video compression technology, embedded software and hardware technology etc. have been integrated, with user and integrator from complexity or during moving and free in the cable network that can't use, compare with existing mobile video technology, become an integral system.
Technology path of the present invention is: mobile video acquisition platform adopts high performance DSP, and integrated GPRS/EDGE/CDMA/3G chip and peripheral modules, be designed to an incorporate production board, video with the input of digitlization video camera in DSP passes through H.264/AVS algorithm coding compression, be transferred to central server by the GPRS/EDGE/CDMA/3G network wireless, and the integrated alarm chip, radio alarming information also is transferred to central server by the GPRS/EDGE/CDMA/3G network wireless.
Its main advantage of the present invention is: adopt international up-to-date video compression standard h.264 with China up-to-date audio frequency and video compression standard AVS, by the parameter optimization setting, the arrowband environment that adapts to mobile communications network, functions such as digital video collection, encoding compression, wireless transmission are incorporated in the incorporate embedded device, and the practical application that more helps under control point change conditions such as family's monitoring, vehicle monitoring is promoted.
The invention has the beneficial effects as follows: adopt embedded integrated equipment to finish functions such as video acquisition, encoding compression, mobile communications network transmission, have simple, the characteristics such as cost is low, technology path advanced person of installing.Under present EDGE/CDMA1X network condition, for QCIF (176 * 144) format video, video compression ratio after the arrowband optimization can reach 50 ~ 100 times, transmission per second 6 ~ 8 frames, network outage can reconnect automatically, can reach on 3G and the subsequent network more than QCIF (176 * 144) and CIF (352 * 288) transmission per second 25 frames.
Description of drawings
Fig. 1 is mobile video acquisition platform software processes flow process of the present invention such as figure below;
Fig. 2 is the mobile video acquisition platform functional block diagram.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Mobile video acquisition platform software processes flow process of the present invention as shown in Figure 1 is:
A, startup collecting device;
B, startup application program, initialization has related parameter;
C, connect by mobile wireless network and server;
D, obtain audio, video data or warning message;
E, digitized video collection and sampling or transmission warning message;
F, by the up-to-date video compression standard in the world h.264 or Chinese up-to-date audio frequency and video compression standard AVS finish audio frequency and video compressions;
G, data that will be compressed pass to server by mobile communications network.
As shown in Figure 2, a kind of mobile video acquisition platform comprises CCD digital camera, DSP digital processing unit, CPLD complex programmable logic chip and Ethernet interface circuit.The CCD digital camera links to each other with the DSP digital processing unit, the DSP numerical processor chip loads by the FLASH chip and meets the h.264 algorithm of video compression standard and AVS audio frequency and video compression standard, vision signal is compressed handled after the Ethernet interface circuit outputs to the RT45 interface; The DSP digital processing unit links to each other with the RS232 serial interface circuit, and serial ports one connects PC, as the plateform system parameter passage is set, and does not need PC during this equipment operation; Serial ports two connects wireless communication module, and data are sent to central server; The DSP digital processing unit links to each other with the CPLD CPLD, realize disposing apace other peripheral hardware is used and other external sensing equipments to carry out input/output information mutual.
Mobile video acquisition platform of the present invention is core with DSP, is responsible for platform program scheduling, computing and processing; The CCD digital camera is responsible for gathering video information, and is sent to DSP and handles; Be application program, driver etc. in the FLASH memory, power up back DSP at platform and just from the FLASH memory, read application program and driver and carry out subsequent treatment; Preserve the video buffer data and the unpressed video data of compression among the SDRAM, and the video data after DSP will compress is sent to serial ports or network interface; This platform is supported the output of RT45 network, can directly connect netting twine data are sent to central server; This platform is supported two serial ports, serial ports one (COM1) connects after the PC, as the plateform system parameter passage (not needing PC during this equipment operation) is set, serial ports 2 (COM2) connects wireless communication module (GPRS/EDGE/CDMA1X/3G), and data are sent to central server; CPLD (CPLD) can dispose apace that other peripheral hardware is used and other sensing equipment carries out input and output (IO) information interaction, such as electrical equipment control, warning message, temperature humidity etc.The mobile video acquisition platform power supply is the 5V direct current.
The mobile video acquisition platform that the present invention finishes can be realized audio frequency and video, radio alarming information uploading through practical application, and has realized decoding and smooth playing on PC and the mobile phone terminal based on GSM, cdma network.
Invention is not limited to above-mentioned preferred forms, and other any identical with the present invention or akin products that anyone draws under enlightenment of the present invention all drop within protection scope of the present invention.
Claims (7)
1, a kind of mobile video acquisition platform comprises CCD digital camera, DSP digital processing unit, CPLD complex programmable logic chip and Ethernet interface circuit; It is characterized in that: the CCD digital camera links to each other with the DSP digital processing unit, the DSP numerical processor chip loads by the FLASH chip and meets the h.264 algorithm of video compression standard and AVS audio frequency and video compression standard, vision signal is compressed handled after the Ethernet interface circuit outputs to the RT45 interface; The DSP digital processing unit links to each other with the RS232 serial interface circuit, and serial ports one connects PC, as the plateform system parameter passage is set; Serial ports two connects wireless communication module, and data are sent to central server; The DSP digital processing unit links to each other with the CPLD CPLD, realize disposing apace other peripheral hardware is used and sensing equipment to carry out input/output information mutual.
2, mobile video acquisition platform according to claim 1 is characterized in that: wireless communication module is GPRS chipset and peripheral devices.
3, mobile video acquisition platform according to claim 1 is characterized in that: wireless communication module is EDGE chipset and peripheral devices.
4, mobile video acquisition platform according to claim 1 is characterized in that: wireless communication module is CDMA chipset and peripheral devices.
5, mobile video acquisition platform according to claim 1 is characterized in that: wireless communication module is 3G chipset and peripheral devices.
6, mobile video acquisition platform according to claim 1 is characterized in that: the external SDRAM chip of DSP digital processing unit.
7, mobile video acquisition platform according to claim 1 is characterized in that: the CPLD CPLD links to each other with electrical equipment control transducer, alarm sensor, temperature sensor and humidity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810086347 CN101540889A (en) | 2008-03-20 | 2008-03-20 | Mobile video acquisition platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810086347 CN101540889A (en) | 2008-03-20 | 2008-03-20 | Mobile video acquisition platform |
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| CN101540889A true CN101540889A (en) | 2009-09-23 |
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| CN 200810086347 Pending CN101540889A (en) | 2008-03-20 | 2008-03-20 | Mobile video acquisition platform |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969558A (en) * | 2010-09-30 | 2011-02-09 | 河南省电力公司南阳供电公司 | Digital on-site safety monitoring system |
| CN101742256B (en) * | 2009-12-07 | 2011-10-05 | 杭州电子科技大学 | DSP/IPMOD intelligent video server-based forest fire wireless remote monitoring device |
| CN102457726A (en) * | 2010-10-18 | 2012-05-16 | 曜鹏科技股份有限公司 | Image coding integrated circuit and image coding data transmission method for image coding data used in image coding integrated circuit |
| CN102547236A (en) * | 2011-12-22 | 2012-07-04 | 成都众询科技有限公司 | Wireless video transmission system based on general packet radio service (GPRS) |
| CN104954749A (en) * | 2015-06-17 | 2015-09-30 | 四川特伦特科技股份有限公司 | Information recording method |
| CN105848309A (en) * | 2016-03-23 | 2016-08-10 | 安徽京师方圆信息技术有限公司 | GPRS data terminal for field remote communication |
| CN107277456A (en) * | 2017-07-26 | 2017-10-20 | 北京计算机技术及应用研究所 | A kind of video security monitoring system based on Android device |
-
2008
- 2008-03-20 CN CN 200810086347 patent/CN101540889A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742256B (en) * | 2009-12-07 | 2011-10-05 | 杭州电子科技大学 | DSP/IPMOD intelligent video server-based forest fire wireless remote monitoring device |
| CN101969558A (en) * | 2010-09-30 | 2011-02-09 | 河南省电力公司南阳供电公司 | Digital on-site safety monitoring system |
| CN102457726A (en) * | 2010-10-18 | 2012-05-16 | 曜鹏科技股份有限公司 | Image coding integrated circuit and image coding data transmission method for image coding data used in image coding integrated circuit |
| CN102547236A (en) * | 2011-12-22 | 2012-07-04 | 成都众询科技有限公司 | Wireless video transmission system based on general packet radio service (GPRS) |
| CN104954749A (en) * | 2015-06-17 | 2015-09-30 | 四川特伦特科技股份有限公司 | Information recording method |
| CN104954749B (en) * | 2015-06-17 | 2017-10-20 | 四川特伦特科技股份有限公司 | A kind of information recording method |
| CN105848309A (en) * | 2016-03-23 | 2016-08-10 | 安徽京师方圆信息技术有限公司 | GPRS data terminal for field remote communication |
| CN107277456A (en) * | 2017-07-26 | 2017-10-20 | 北京计算机技术及应用研究所 | A kind of video security monitoring system based on Android device |
| CN107277456B (en) * | 2017-07-26 | 2020-04-17 | 北京计算机技术及应用研究所 | Safe video monitoring system based on Android equipment |
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Open date: 20090923 |