CN102263935A - Video monitoring and transmission device based on TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network - Google Patents
Video monitoring and transmission device based on TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network Download PDFInfo
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Abstract
The invention relates to a video monitoring and transmission device based on the TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network, belonging to the technical field of video information transmission equipment. The video monitoring and transmission device comprises a video data acquisition unit, a video monitoring center and a user handheld device, wherein the video data acquisition unit comprises a core board circuit and a TD HSUPA (Time Division High Speed Uplink Packet Access) module, the core board circuit is connected with a camera, a pan/tilt decoder and the TD HSUPA module, and the acquisition and the compression of video signals and the packaging of streaming media data can be realized; the video monitoring center provides service for the transmission, the storage and the forwarding of video data in the network, transmits the video data to the user handheld device and realizes real-time monitoring; and the user handheld device realizes field real-time monitoring and remote pan/tilt control through system play software installed on the user handheld device. The video monitoring and transmission device has quick video information transmission, high quality, low cost, good application prospect and environmental protection.
Description
Technical field:
The invention belongs to video electrical information transmission equipment technical field, relate to a kind of digital video monitor system of moving communicating field, particularly a kind of video monitoring transmitting device based on the TD-SCDMA network.
Background technology:
The development of video monitoring and transmission system can be divided into three phases, before the early 1990s, mainly is the closed-circuit TV monitoring system based on analog machine, is called first generation simulation monitoring system; Middle nineteen nineties, along with the raising of computer process ability and the development of video technique, utilize the high-speed data disposal ability of computer to carry out the collection and the processing of video, utilize the high-resolution of display to realize that many pictures of image show, improved picture quality, this multimedia master station system based on PC is called second generation digitlization local video supervisory control system; Late nineteen nineties, along with the quick raising of the network bandwidth, computer process ability and memory capacity and the appearance of usable video treatment technology, video monitoring has stepped into totally digitilized cybertimes, is called third generation Active Eyes.Third generation video monitoring system is support with the network, compression, transmission, storage and broadcast with digital video are core, the graphical analysis practical with intelligence is characteristic, caused the technological revolution of video monitoring industry, is subjected to academia, industrial circle and user's great attention.Existing video monitoring system mainly comprises the video data acquiring system, the The Cloud Terrace lens control system, signal transmission system and processing system for video, system has concentrated multimedia technology, Digital Image Processing, Network Transmission, state-of-the-art technology such as embedded, not only can solve the image transmission, Long-distance Control, monitoring functions such as field signal acquisition, high-quality monitoring image and monitor mode easily also can be provided, its principle is: the video data acquiring system adopts microprocessor and embedded real-time operating system design, in conjunction with network technology, the vedio data of gathering is transferred to network through the overcompression processing, realizes Network Video Surveillance; The embedded video data acquisition system is small and exquisite, flexible, low-cost with it, stable performance, high performance characteristics and unique advantage in conjunction with the TCP/IP technology, realizes Network Video Surveillance by setting up C/S or B/S working model; This type systematic can directly be connected into Ethernet, have flexible, promptly insert characteristics such as promptly see.3G network growing, making Radio Transmission Technology use is more and more accepted by all trades and professions, wireless monitor is also had an optimistic view of by users gradually as a special occupation mode, in order to realize the transmission of vision signal in wireless network, general collection and the compression of adopting certain flush bonding processor to realize video data, and the video data of compression carried out after PPP packing and TCP/IP pack, by the 3G wireless module that links to each other with the processor communication interface data are sent among the 3G, pass through transit server again, video data is passed on user's handheld device (mobile phone or PC), can be anywhere or anytime to the residence be concerned about (as the family residence, the laboratory, the environment of plant, working environment etc.) monitor.Wireless monitor can more and more be expected as a special occupation mode, characteristics such as it is easy for installation, flexibility is strong, cost performance height can make that more the supervisory control system of conglomerate adopts the wireless monitor mode, wireless video monitoring can be widely used in various fields such as security monitoring, traffic monitoring, industrial monitoring, family's monitoring, new wireless monitor point is joined in the existing network, do not need to lay network, increase equipment, realize remote wireless monitoring easily for newly-built transmission.The data transmission bauds of the outdoor environment of wireless network support at present is 384kbps, and general video data is bigger, just might in 3G network, transmit after must compressing the video data that obtains, at present be still a difficult problem that has challenge for video transmission, particularly under the video transmission situation that satisfies high definition, smoothness, contains much information, the technology that video compression is handled has very high requirement.
At present, embedded technology has become the common development direction of communication and consumer product, and in the communications field, digital technology is replacing analogue technique comprehensively, along with the maturation of technique of internet, the raising day by day in broadband, the equipment that makes is changed to multifunction by simple functionization.Being of wide application of video technique, as online video conferencing, online visible electronic commercial affairs, online government affairs, shopping online, online school, tele-medicine, online seminar, the online Room of showing, individual's online chat, visual consulting etc., but these application all will be compressed, data quantity transmitted is big, simple with enlarging memory span, the way that increases the transmission rate of communication trunk is unpractical, data compression technique is an effective solution, by data compression information data amount is depressed, store with compressed format, transmission, both conserve storage, improve the efficiency of transmission of communication trunk again, make the computer real-time processing audio, video information guarantees to play out high-quality video, audio program.Because information source data such as multimedia audio, data, video have extremely strong correlation, there are a large amount of redundant informations and data compression the redundant information in the huge data can be removed (removing the correlation between the data), keep separate information component.End is got up, and existing video monitoring and transmission technology ubiquity the device structure complexity, safety in utilization reliability shakiness, and transinformation is difficult to meet the demands, and compress technique is difficult for shortcomings such as realization.
Summary of the invention:
The objective of the invention is to overcome the shortcoming that prior art exists, seek to design a kind of video monitoring transmitting device that is applied to the video technique field based on the TD-SCDMA network, adopt flush bonding processor and Android operating system to realize the collection and the compression of image, and the video data of compression carried out after PPP packing and TCP/IP pack, by the TD HSUPA wireless module that links to each other with the processor communication interface data are sent in the TD net, pass to video data on user's handheld device or on the PC by transit server, anywhere or anytime the place of being concerned about is monitored.
To achieve these goals, the agent structure of apparatus of the present invention comprises camera, the The Cloud Terrace decoder, the core board circuit, TD HSUPA module, user's handheld device, the TD-SCDMA network, the video monitoring center, baseband circuit, radio circuit, the video data acquiring unit, USB current-limiting type switch, the USB transceiver, USIM or global Subscriber Identity Module, nonvolatile storage (NAND FLASH), random asccess memory (DDR SDRAM), power management chip (PMIC), crystal oscillator, the LCD LCD, jtag interface, UART1 interface and central processing unit, each element connects and composes the integrated device system according to the electricity Principle of Communication, is divided into the video data acquiring unit, three funtion parts of video monitoring center and user's handheld device; The video data acquiring unit is made up of core board circuit and TD HSUPA module two parts, and the core board circuit comprises NAND FLASH, DDR SDRAM, crystal oscillator, power management chip (PMIC), LCD LCD, jtag interface, UART1 interface and central processing unit; The core board circuit is connecting camera, The Cloud Terrace decoder and TD HSUPA module, and the core board circuit is realized collection of video signal, compression and stream medium data packing function; TD HSUPA module by USB transponder chip TUSB1105, USB current-limiting type switch chip MAX1693, be used for user and user's handheld device end and set up baseband module and the frequency band module electric connection of USIM, TM1902 that video communication is connected and form, realize the modulation of baseband video signal and control signal; Central processing unit on the core board circuit is controlled other parts on the core board circuit by hardware interface as the signal processing and the control device of core; The video monitoring center comprises authentication management unit, video management unit and communications management unit, for transmission, storage, the forwarding of video data in the TD-SCDMA network provides service, the video monitoring center sends to user's handheld device with video data, realizes the real-time monitoring of user's handheld device; User's handheld device realizes on-the-spot real-time monitoring and long-range cradle head control by the playout software that is installed in the Android system on user's handheld device; In the Android operating system on the core board circuit (system that plate carries on operating system and the user's handheld device is the Android system), call the H.263 H.263 encoding compression of code database realization vision signal by JNI, satisfy the requirement of user to the video monitoring high information quantity, video data after the compression is packed through PPP packing and TCP/IP, and through sending in the TD-SCDMA network after the modulation of TD HSUPA module; User's handheld device satisfies multi-faceted monitoring requirement by the control of mobile phone terminal realization to The Cloud Terrace; Central processing unit adopts 88AP310, and the core board circuit comprises central processing unit, internal memory and flash, and the digital video signal output of core board circuit compression sends in the TD-SCDMA network through the hardware interface and the TD HSUPA wireless module of central processing unit.
Central processing unit on the core board circuit that the present invention relates to is that the 88AP310 chip has vision hardware acceleration function and dominant frequency is 624MHz, supports the VGA video data of 30fps; On Android operating system, the application program of video data acquiring compression is called dynamic base functions control webcam driver among the HAL by JNI, operation camera device file reading video data, calling H.263 by JNI, the code database function compresses video data encoding; The core board circuit links to each other with the UART interface by USB with TD HSUPA module, in Android operating system, by the MUX multiplex protocol on the UART interface, set up two tunnels be responsible for sending PPP dial up on the telephone the instruction and the AT command signal, video data is sent to TD HSUPA module by USB interface; User's handheld device sends to the video acquisition end by short message mode with the cradle head control instruction when by user's handheld device The Cloud Terrace being controlled in real time, the core board circuit obtains instruction The Cloud Terrace is operated, or sending the live signal of control The Cloud Terrace by the application program on user's handheld device, the vision signal that sends to the video acquisition end of user's handheld device realizes transmitting by the TD-SCDMA network with the control signal that user's handheld device that cloud platform control system receives sends; The Cloud Terrace links to each other by the serial ports conversion with the video acquisition end, the video acquisition end is according to the cradle head control instruction that receives, send the action of commands for controlling The Cloud Terrace to the The Cloud Terrace serial ports, satisfy the real time remote control of user when realizing the real-time monitoring of user's handheld device video acquisition end The Cloud Terrace.
The core signal that the present invention relates to sends in the TD-SCDMA network through TD HSUPA module, the hardware interface of core board circuit links to each other by serial ports with the digital baseband circuit of TD HSUPA module, at sending to user's handheld device of going in the TD-SCDMA network The Cloud Terrace orientation is regulated and camera lens basic function operating control signal, after the TD HSUPA module of video data acquiring unit receives control signal in the network, deliver to the decoding of being correlated with of core board circuit through demodulation, and control command is sent to The Cloud Terrace through serial ports, realize control to The Cloud Terrace and camera.
The present invention is with complete video network framework, and the video monitoring of the real-time of realization video monitoring, high speed, high information quantity, controlled multi-faceted monitoring transmits, and its cost is low, and application prospect is good, environmental friendliness.
Description of drawings:
Fig. 1 is a complete machine network configuration schematic block diagram of the present invention.
Fig. 2 is a video data acquiring unit construction principle schematic diagram of the present invention.
Fig. 3 is the TD HSUPA module syndeton principle schematic among the present invention.
Fig. 4 is the core board circuit structure principle schematic of video data acquiring of the present invention unit.
Embodiment:
The invention will be further described below in conjunction with accompanying drawing and by embodiment.
The agent structure of present embodiment comprises camera 1, The Cloud Terrace decoder 2, core board circuit 3, TD HSUPA module 4, user's handheld device 5, TD-SCDMA network 6, video monitoring center 7, baseband circuit 8, radio circuit 9, video data acquiring unit 10, USB current-limiting type switch 11, USB transceiver 12, USIM (Universal Subscriber ldentity Module whole world Subscriber Identity Module) 13, NAND FLASH 14, DDR SDRAM15, power management chip (PMIC) 17, crystal oscillator 16, LCD LCD 18, jtag interface 19, UART1 interface 20 and central processing unit 21, each element connects and composes the integrated device system according to the electricity Principle of Communication, comprise video acquisition unit 10,7 three functional units in user's handheld device 5 and video monitoring center, wherein video data acquiring unit 10 is nucleus modules of whole system, the vision signal processing of the core of realization video monitoring system and the processing of control signal are made up of core board circuit 3 and TD HSUPA module 4; Video monitoring center 7 is made up of authentication management, video management and telecommunication management, authentication management, information management and the User Status management of the usim card of authentication management realization TD HSUPA module 4 and the usim card of user's handheld device 5; Video management is the core at video monitoring center, and whether smoothness plays a key effect to video flowing, and video management comprises control command transmission, data storage service and the backup data management of image reception, image transmission, image information management, The Cloud Terrace; Network security management and Control on Communication are carried out in telecommunication management, and user's handheld device 5 is carried out real-time video monitoring by monitor terminal software, and according to demand camera are carried out real-time control, comprise the conversion in The Cloud Terrace orientation and the control of image frame.
The core board circuit of the video data acquiring unit 10 of present embodiment comprises NAND FLASH14, DDR SDRAM15, crystal oscillator 16, power management chip PMIC17, LCD LCD 18, jtag interface 19, UART1 interface 20 and central processing unit 21; Core board circuit 3 is connecting camera 1, The Cloud Terrace decoder 2 and TD HSUPA module 4, core board circuit 3 is finished collection of video signal, compression and encapsulation, packaged transfer of data is handled to the baseband circuit 8 of TD HSUPA module 4 line correlation of going forward side by side, and enters into the radio circuit 9 of TD HSUPA module 4 at last and sends to TD-SCDMA network 6; The control signal that central processing unit 21 receives is transferred in the The Cloud Terrace decoder 2, the back control that realizes The Cloud Terrace of the decoding of being correlated with, another part control signal is by the control of The Cloud Terrace realization to camera 1, the whole video transmission system is made up of video signal flow and cradle head control signal flow two parts, wherein, video signal flow: ccd sensor → H263 image compression encoding → encapsulation flow media data packet → TD communication module → TD-SCDMA network → video management → TD-SCDMA network → user's handheld device → video monitoring software player; Control signal stream: in video monitoring software cradle head control button → user's handheld device radio-frequency module → TD-SCDMA network → monitoring management the baseband portion of the radio frequency part → TD communication module of the transmission of The Cloud Terrace control command → TD-SCDMA network → TD communication module → Streaming Media control signal data bag unpack → The Cloud Terrace → The Cloud Terrace decoder decodes → realizes the control of The Cloud Terrace and the control of camera.
The video data acquiring unit 10 of present embodiment comprises core board circuit 3 that contains the 88AP310 chip and the video processing circuits of being made up of camera 1, The Cloud Terrace decoder 2 and TD HSUPA module 4, wherein camera 1 adopts OV7670 CAMERACHIPTM imageing sensor, can export whole frame, sub sampling and get eight image datas of various resolution of window mode, all images processing capacity process comprises that gamma curve, white balance, saturation and colourity all passes through SCCB interface (compatible I2C bus interface), and the VGA image was up to for 30 frame/seconds; The Cloud Terrace decoder 2 adopts the digital The Cloud Terrace of supporting a plurality of angle rotations; TD HSUPA module 4 adopts the TM1902 module of supporting bimodulus TD-SCDMA HSUPA/EDGE; Central processing unit 21 adopts the novel embedded 88AP310 processor of ARM10, system-on-chip designs based on the Xscale processor is provided, satisfy many different product designs such as user's handheld device 5 and cellular handset market that are, high-performance, low-power consumption, multimedia function are provided, powerful disposal ability and stability are for the collection of video data with compression provides basic guarantee and advantage is expanded to fields such as Digital Media and telecommunication; Video data acquiring unit 10 is realized based on the 88AP310 chip, central processing unit selects the NAND FLASH of the DDR_SDRAM of bus 1G and 2G to form through data, address bus and sheet register links to each other, and wherein storage system is moved the configuration information of needed software data and system among the FLASH; Store ephemeral data (the original vision signal that collects, H263 coding back packed data, user terminal to the control signal of The Cloud Terrace etc.) among the DDR-SDRAM, the H263 coding plays an important role to the transmission that realizes jumbo video data to the high speed compression of signal, the high speed of DDR-SDRAM processing signals and the high speed of TD-SCDMA; Central processing unit 21 is connected with camera 1 through data/address bus, realizes comprising gamma curve, white balance, saturation and colourity all images processing capacity by the SCCB interface programming; The Cloud Terrace decoder 2 links to each other with the serial ports of 88AP310 by MAX485, and the control signal of central processing unit 21 is changed into the RS485 signal; The LP3972 chip is multi-functional, programmable power management chip 17, and last the realization provides various stable power to central processing unit 21 by outside 12V voltage is programmed; Central processing unit 21 links to each other with the TM1902 module by serial bus and control bus, and the video data of compression is handled in this module, finally goes out through antenna transmission.
The TD HSUPA module 4 of present embodiment video data acquiring unit 10 is by the chip TUSB1105 of USB transceiver 12, the chip MAX1693 of USB current-limiting type switch 11, be used for the user and set up the USIM that video communication is connected with user's handheld device end, the baseband module of TM1902 and frequency band module electric connection are formed, satisfy the requirement of intelligent terminal low-power consumption index, the TM1902 product is using under the mode of UART3 as port, sleep awakening mode between two kinds of modules and the central processing unit 21 is provided, a kind of is mode by the hardware flow control signal, UART is five line hard ware current control full duplex serial ports, realizes the function of sleep awakening by the hardware flow control pin; Another kind be by the auxiliary GPIO of four-wire system realize and application processor between sleep awakening, the USB 1.1port3 port of six lines of central processing unit 21 is connected with the port USB 1.1 of four lines of TM1902, realizes the transmission of vision signal and control signal; The digital baseband of TD HSUPA/EDGE bimodulus module TM1902 and frequency band partial function mainly are to finish through the conversion of the video data base band behind the H263 compressed encoding to frequency band, video data changes into and is adapted at TD-SCDMA HSUPA frequency range 2010-2025MHz high frequency signals transmitted, uploads in the TD-SCDMA network with up maximum wireless transmission rate 384Kbps and goes.
Claims (3)
1. video monitoring transmitting device based on the TD-SCDMA network, agent structure comprises camera, the The Cloud Terrace decoder, the core board circuit, TD HSUPA module, user's handheld device, the TD-SCDMA network, the video monitoring center, baseband circuit, radio circuit, the video data acquiring unit, USB current-limiting type switch, the USB transceiver, USIM or global Subscriber Identity Module, nonvolatile storage, random asccess memory, power management chip, crystal oscillator, the LCD LCD, jtag interface, UART1 interface and central processing unit, it is characterized in that each element connects and composes the integrated device system according to the electricity Principle of Communication, is divided into the video data acquiring unit, three funtion parts of video monitoring center and user's handheld device; The video data acquiring unit is made up of core board circuit and TD HSUPA module two parts, and the core board circuit comprises NAND FLASH, DDR SDRAM, crystal oscillator, power management chip (PMIC), LCD LCD, jtag interface, UART1 interface and central processing unit; The core board circuit is connecting camera, The Cloud Terrace decoder and TD HSUPA module, and the core board circuit is realized collection of video signal, compression and stream medium data packing function; TD HSUPA module by USB transponder chip, USB current-limiting type switch chip, be used for user and user's handheld device end and set up baseband module and the frequency band module electric connection of USIM, TM1902 that video communication is connected and form, realize the modulation of baseband video signal and control signal; Central processing unit on the core board circuit is controlled other parts on the core board circuit by hardware interface as the signal processing and the control device of core; The video monitoring center comprises authentication management unit, video management unit and communications management unit, for transmission, storage, the forwarding of video data in the TD-SCDMA network provides service, the video monitoring center sends to user's handheld device with video data, realizes the real-time monitoring of user's handheld device; User's handheld device realizes on-the-spot real-time monitoring and long-range cradle head control by the playout software that is installed in the Android system on user's handheld device; In the Android operating system on the core board circuit, call the H.263 H.263 encoding compression of code database realization vision signal by JNI, satisfy the requirement of user to the video monitoring high information quantity, video data after the compression is packed through PPP packing and TCP/IP, and through sending in the TD-SCDMA network after the modulation of TD HSUPA module; User's handheld device satisfies multi-faceted monitoring requirement by the control of mobile phone terminal realization to The Cloud Terrace; Central processing unit adopts 88AP310, and the core board circuit comprises central processing unit, internal memory and flash, and the digital video signal output of core board circuit compression sends in the TD-SCDMA network through the hardware interface and the TD HSUPA wireless module of central processing unit.
2. the video monitoring transmitting device based on the TD-SCDMA network according to claim 1, central processing unit on the core board circuit that it is characterized in that relating to is that the 88AP310 chip has vision hardware acceleration function and dominant frequency is 624MHz, supports the VGA video data of 30fps; On Android operating system, the application program of video data acquiring compression is called dynamic base functions control webcam driver among the HAL by JNI, operation camera device file reading video data, calling H.263 by JNI, the code database function compresses video data encoding; The core board circuit links to each other with the UART interface by USB with TD HSUPA module, in Android operating system, by the MUX multiplex protocol on the UART interface, set up two tunnels be responsible for sending PPP dial up on the telephone the instruction and the AT command signal, video data is sent to TD HSUPA module by USB interface; User's handheld device sends to the video acquisition end by short message mode with the cradle head control instruction when by user's handheld device The Cloud Terrace being controlled in real time, the core board circuit obtains instruction The Cloud Terrace is operated, or sending the live signal of control The Cloud Terrace by the application program on user's handheld device, the vision signal that sends to the video acquisition end of user's handheld device realizes transmitting by the TD-SCDMA network with the control signal that user's handheld device that cloud platform control system receives sends; The Cloud Terrace links to each other by the serial ports conversion with the video acquisition end, the video acquisition end is according to the cradle head control instruction that receives, send the action of commands for controlling The Cloud Terrace to the The Cloud Terrace serial ports, satisfy the real time remote control of user when realizing the real-time monitoring of user's handheld device video acquisition end The Cloud Terrace.
3. the video monitoring transmitting device based on the TD-SCDMA network according to claim 1, it is characterized in that the core signal that relates to sends in the TD-SCDMA network through TD HSUPA module, the hardware interface of core board circuit links to each other by serial ports with the digital baseband circuit of TD HSUPA module, at sending to user's handheld device of going in the TD-SCDMA network The Cloud Terrace orientation is regulated and camera lens basic function operating control signal, after the TD HSUPA module of video data acquiring unit receives control signal in the network, deliver to the decoding of being correlated with of core board circuit through demodulation, and control command is sent to The Cloud Terrace through serial ports, realize control to The Cloud Terrace and camera.
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| CN104200710A (en) * | 2014-05-30 | 2014-12-10 | 杭州华银教育多媒体科技股份有限公司 | Novel wireless multimedia interactive teaching system and fault treatment method |
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| CN107040827A (en) * | 2015-11-19 | 2017-08-11 | 三十九度C | Method, terminal and the computer-readable carrier for supporting to relay using mobile terminal |
| CN107273321A (en) * | 2016-04-08 | 2017-10-20 | 上海大潮电子技术有限公司 | The serial port multiplexing method of vehicle dispatching terminal device and vehicle dispatching terminal device |
| CN105959637A (en) * | 2016-06-01 | 2016-09-21 | 福州大学 | Remote intelligent video monitoring system |
| CN105959637B (en) * | 2016-06-01 | 2019-03-12 | 福州大学 | A kind of long-distance intelligent video monitoring system |
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