CN1747549A - Video-frequency network monitor - Google Patents
Video-frequency network monitor Download PDFInfo
- Publication number
- CN1747549A CN1747549A CN 200510100194 CN200510100194A CN1747549A CN 1747549 A CN1747549 A CN 1747549A CN 200510100194 CN200510100194 CN 200510100194 CN 200510100194 A CN200510100194 A CN 200510100194A CN 1747549 A CN1747549 A CN 1747549A
- Authority
- CN
- China
- Prior art keywords
- video
- module
- uncompressed encoding
- chip
- main control
- 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
Links
Images
Landscapes
- Closed-Circuit Television Systems (AREA)
Abstract
A video network monitor is composed of master controller, decompression-decoding unit and display. Said master controller uses Linux as its operating platform and can receive the compressed Web video code stream from IP camera, decompress and decode it, display the video, and send control signal to camera.
Description
Technical field
The present invention relates to a kind of monitor, in particular, the present invention relates to a kind of video-frequency network monitor.
Background technology
The information transmission mode of traditional supervisory control system is an analog form, it uses the mode of baseband transmission, by coaxial cable image is sent to terminal monitor, weak point is that transmission range is short, wiring is complicated or the like, therefore, the simulation monitoring mode can not satisfy gradually some industry on a large scale, the demand of remote monitor, as urban safety monitoring and traffic monitoring, the trans-regional monitoring of bank etc.Along with popularizing on a large scale of the Internet, RMON has been penetrated into multiple fields such as education, government, public place of entertainment, hospital, hotel, sports buildings, urban public security.At present, web camera collection, compressed image are adopted in network monitoring, pass through IP network, image is sent to PC to be decompressed, shows, but it is extremely inconvenient to use PC to be presented at many occasions, security personnel as departments such as bank, building, hotel, sub-districts uses the PC inconvenience, and the security personnel might use PC online or plays games etc.; Simultaneously, use also comparatively inconvenience of PC in family's supervisory control system.
Summary of the invention
Deficiency at simulation monitoring mode and general network monitoring the invention provides a kind of video-frequency network monitor, and it carries out uncompressed encoding with the IP video camera via the Web video file that Internet communication comes, and restores video image, realizes resetting on display screen; Simultaneously, also can use specified right to transmit a control signal to the Long-distance Control that video camera carries out video camera by network.
Purpose of the present invention is achieved by following technical proposals.
Video-frequency network monitor of the present invention comprises main control part, uncompressed encoding part and display part; Described main control part, by internal memory, the mass storage Flash of the kernel software of the CPU that adopts the ARM kernel, storage system operation, preserve NVRAM, real-time clock, button, electric power management circuit that data are set and form, it with Linux as operating platform, receive the Web compressed video stream that network transmits, deliver to uncompressed encoding and partly carry out Web file decompress(ion) and video decode, control the video of display part after simultaneously and show uncompressed encoding; Described uncompressed encoding part is that the video DA chip of shifted color burst signal into burst interval of analog color video signal is formed by SDRAM, Audio Processing chip, the converting digital vision signal of uncompressed encoding chip, temporal data; Described display part is made up of lcd controller, LCD display and backlight drive; Be connected by 24 bit data bus between main control part and the uncompressed encoding part, the uncompressed encoding part links to each other by ITU-R656 with the display part.
Described uncompressed encoding chip is made up of host interface module, demultiplexing module, MPEG4 uncompressed encoding module, audio decoder module, SDRAM control module, RISC kernel module, video output interface module etc., is connected by inner BDB Bi-directional Data Bus between each module; 24 bit data bus of main control part are connected to host interface module, and the Audio Processing chip is connected to the output of audio decoder module, and video DA chip is connected to the video output module.
The present invention's beneficial effect compared with prior art is:
1. comprehensive wiring is convenient;
2. propagation distance is unrestricted, and has seamless expansion connection function, and increase equipment only needs the IP address is expanded;
3. transmit The Cloud Terrace, camera lens control signal via network, on monitor, can directly control The Cloud Terrace and camera lens (quick);
4. video-frequency network monitor searches video camera in the consolidated network by the IP address scan, can freely switch the image of a certain video camera of demonstration under the situation of authorizing;
5. the employing damascene structures is compared with the general network monitoring of using PC, and plug and play is installed and used very convenient (PTT), stable performance;
6. cost is lower, and is especially low more than analog form when the length Distance Transmission, helps popularizing.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a uncompressed encoding part-structure schematic diagram of the present invention;
Fig. 3 is a Web data file process chart of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Shown in Fig. 1 is the structural representation of video-frequency network monitor.Video-frequency network monitor is made of main control part, uncompressed encoding part and display part.
Main control part is the control hinge of whole device running, by SDRAM3, the mass storage Flash14 of the kernel software of the CPU2 that adopts the ARM kernel, storage system operation, preserve NVRAM17 that data are set, real-time clock 12, button 13, electric power management circuit 11 etc. and form, it with Linux as operating platform, receive the Web compressed video stream that network transmits, deliver to the Web uncompressed encoding and partly carry out Web file decompress(ion) and video decode, control the video of display part after simultaneously and show uncompressed encoding.The display part is made up of lcd controller 6, LCD display 8 and backlight drive 9.
Be connected by 24 bit data bus between main control part and the uncompressed encoding part, the uncompressed encoding part links to each other by ITU-R656 with the display part.
Shown in Fig. 2 is the structural representation of uncompressed encoding part.
The uncompressed encoding part is made up of SDRAM5, the audio frequency DA7 of uncompressed encoding chip 4, temporal data, the video DA chip 23 that the converting digital vision signal is shifted color burst signal into burst interval of analog color video signal, the core of this part is a uncompressed encoding chip 4, form by host interface module 21, demultiplexing module 20, MPEG4 uncompressed encoding module 19, audio decoder module 24, SDRAM control module 22, RISC kernel module 18, video output interface module 23 etc., be connected by inner BDB Bi-directional Data Bus between each module.
The mpeg 4 video data stream that sends from main control part is sent to chip solution Multiplexing module 20 by the host interface module 4 of its inside, and outputting video streams is stored among the decoding buffer zone SDRAM8 through internal bus and storage interface unit again; Decode by MPEG4 uncompressed encoding module 19 again, decoding rear video, voice data are respectively by video output interface module 23,24 outputs of audio decoder module, the data of video output interface module 23 outputs 8 bit digital ITU-R656 forms, deliver to video DA chip 25, deliver to the display part simultaneously and show.
Shown in Fig. 3 is Web data file process chart, further describes below in conjunction with Fig. 1, Fig. 2.After ethernet control chip 1 receives the video Web packet based on ICP/IP protocol that transmission comes on the Ethernet, send interrupt signal and handle to master cpu 2 requests.Master cpu 2 is saved in the data of receiving among the SDRAM3 after receiving interrupt requests.The structure of initial data has four types: video data, voice data, control data and system configuration data.To different data structures, adopt different processing modes respectively, below describe respectively:
1, video type data
The data of video type comprise origin identification, frame number, frame sign, segment numbering, segment size, frame type and decompress(ion) video data and finish sign not.Master cpu 2 is according to the numbering of frame and segment, size, the host interface by decoding chip of decompress(ion) video data not is sent to tram among the SDRAM 5, the video data that uncompressed encoding chip 4 takes out among the SDRAM 5, delivering to MPEG4 uncompressed encoding module 19 decodes, convert the ITU-R656 video format after the decoding to, video output interface module 23 through uncompressed encoding chip 4, be sent to lcd controller 6, lcd controller 6 receives the vision signal of sending here, form the differential driving signal of LVDS form through inter-process, deliver to LCD display 8, backlight drive 9 provides the normal demonstration of LCD display required high pressure, light backlight, master cpu 2 provides the output voltage of the direct voltage control backlight drive 9 of a 0-5V, thus the image brightness that the control LCD display shows.
2, audio type data
The data structure of audio types and video type similar, just the decompress(ion) video data does not change the not voice data of decompress(ion) into, and after 4 decodings of uncompressed encoding chip, digital audio and video signals is with I
2The S mode is delivered to audio frequency DA7 and is converted to simulated audio signal, amplifies for audio frequency amplifier 10 again, promotes loud speaker 16 sounding.
3, control types data
Control data is to send to front network video camera in the network by master cpu 2, the shooting direction of control video camera, distance, focusing etc., data structure comprises origin identification, type of message, message subtype, message numbering, message-length, message content and end sign.The control types data can be set by the user, to guarantee flexibility.
4, system configuration categorical data
System configuration data provides the possibility of automatic or manual configuration front-end camera, it comprises origin identification, VIP pattern, CRB value, RES value, video postposition, coded system, coding parameter, host name, MAC Address, IP address, subnet mask, gateway address, user name, password and end sign, master cpu 2 by to the front-end camera of transmitting system configuration data in the network, thereby changes the configuration of front network video camera.
Electric power management circuit 11 provides the complete machine operate as normal required power supply, and it is an AC/DC off-line conversion device, and the alternating current of 85-265V is transformed into stable 12V, 5V, 3.3V, 1.8V voltage.
Real-time clock 12 provides system clock source accurately, and it adopts the reserve battery power supply, still can keep the clock operation when complete machine cuts off the power supply.
Button 13 is main man-machine interfaces of system, it adopts the AD mode, by different buttons, the voltage signal that output is different, master cpu 2 is constantly measured the amplitude of this signal, identify different voltage, be changed to inner key code and further handle, the action of button adopts the mode of OSD to come and user interactions.Native system provides web camera to search for, change this machine image controls such as rig camera, native network setting and brightness, contrast automatically.
Claims (2)
1, video-frequency network monitor comprises main control part, uncompressed encoding part and display part; It is characterized in that: described main control part by internal memory, the mass storage Flash of the kernel software of the CPU that adopts the ARM kernel, storage system operation, preserve NVRAM, real-time clock, button, electric power management circuit that data are set and form, it with Linux as operating platform, receive the Web compressed video stream that network transmits, deliver to uncompressed encoding and partly carry out Web file decompress(ion) and video decode, control the video of display part after simultaneously and show uncompressed encoding; Described uncompressed encoding part is that the video DA chip of shifted color burst signal into burst interval of analog color video signal is formed by SDRAM, Audio Processing chip, the converting digital vision signal of uncompressed encoding chip, temporal data; Described display part is made up of lcd controller, LCD display and backlight drive; Be connected by 24 bit data bus between main control part and the uncompressed encoding part, the uncompressed encoding part links to each other by ITU-R656 with the display part.
2, video-frequency network monitor according to claim 1, it is characterized in that, described uncompressed encoding chip is made up of host interface module, demultiplexing module, MPEG4 uncompressed encoding module, audio decoder module, SDRAM control module, RISC kernel module, video output module etc., is connected by inner BDB Bi-directional Data Bus between each module; 24 bit data bus of main control part are connected to host interface module, and the Audio Processing chip is connected to the output of audio decoder module, and video DA chip is connected to the video output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100194 CN1747549A (en) | 2005-10-01 | 2005-10-01 | Video-frequency network monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100194 CN1747549A (en) | 2005-10-01 | 2005-10-01 | Video-frequency network monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1747549A true CN1747549A (en) | 2006-03-15 |
Family
ID=36166848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510100194 Pending CN1747549A (en) | 2005-10-01 | 2005-10-01 | Video-frequency network monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1747549A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466520C (en) * | 2006-11-23 | 2009-03-04 | 杭州华三通信技术有限公司 | Method, system and administrative server for front-end equipment control |
| CN101472121B (en) * | 2007-12-25 | 2012-01-25 | 康佳集团股份有限公司 | Liquid crystal monitor |
| CN101753986B (en) * | 2008-11-28 | 2012-10-03 | 北京中星微电子有限公司 | Video monitoring system and wheel cutting control device and method in the video monitoring system |
| CN101877788B (en) * | 2010-01-28 | 2013-02-13 | 杭州海康威视数字技术股份有限公司 | Audio/video decoder, decoding on-wall system and audio/video monitoring system |
| CN103167268A (en) * | 2011-12-14 | 2013-06-19 | 北京铭智佳华通信技术有限公司 | Uniform monitor server |
| CN115842927A (en) * | 2023-02-24 | 2023-03-24 | 湖北芯擎科技有限公司 | Video stream safety display method and device and electronic equipment |
-
2005
- 2005-10-01 CN CN 200510100194 patent/CN1747549A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466520C (en) * | 2006-11-23 | 2009-03-04 | 杭州华三通信技术有限公司 | Method, system and administrative server for front-end equipment control |
| CN101472121B (en) * | 2007-12-25 | 2012-01-25 | 康佳集团股份有限公司 | Liquid crystal monitor |
| CN101753986B (en) * | 2008-11-28 | 2012-10-03 | 北京中星微电子有限公司 | Video monitoring system and wheel cutting control device and method in the video monitoring system |
| CN101877788B (en) * | 2010-01-28 | 2013-02-13 | 杭州海康威视数字技术股份有限公司 | Audio/video decoder, decoding on-wall system and audio/video monitoring system |
| CN103167268A (en) * | 2011-12-14 | 2013-06-19 | 北京铭智佳华通信技术有限公司 | Uniform monitor server |
| CN115842927A (en) * | 2023-02-24 | 2023-03-24 | 湖北芯擎科技有限公司 | Video stream safety display method and device and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1747549A (en) | Video-frequency network monitor | |
| CN103414894A (en) | Wireless real-time screen transfer equipment and method | |
| CN101567731B (en) | Digital broadcasting system on train and implementation method thereof | |
| CN101877788B (en) | Audio/video decoder, decoding on-wall system and audio/video monitoring system | |
| WO2014161402A2 (en) | Distributed video conference method, system, terminal, and audio-video integrated device | |
| EP2974319A1 (en) | Distribution control system, distribution control method, and computer-readable storage medium | |
| CN107102694A (en) | A kind of display with kinescope recording function | |
| CN206773587U (en) | A kind of display with kinescope recording function | |
| TW201401808A (en) | System and method for remotely monitoring video of IP cameras | |
| CN201805504U (en) | Remote audio-video monitoring system | |
| WO2018161188A1 (en) | Intelligent remote monitoring system and method | |
| CN107046631A (en) | A kind of method and system that can be encoded 2 roads simultaneously and be demonstrated with many people's wireless session rooms of streaming media | |
| CN100579221C (en) | Multichannel video frequency compression system based on single-chip double-nuclear DSP constitution | |
| CN104581036A (en) | Multi-screen control method and device for performing video and audio multi-screen display | |
| CN110430479B (en) | Multicast group address allocation method of video matrix and video matrix | |
| CN101001370A (en) | Vedio transmission system and method of mixed with mutiple code and decode | |
| CN203289552U (en) | On-wall decoding display system for monitoring | |
| CN209949313U (en) | Signal transmission system, signal encoding device, and signal decoding device | |
| CN201360309Y (en) | Web camera supporting two-way voice | |
| CN207802170U (en) | A kind of multi-path HDMI interfaces codec terminal system | |
| CN101426132B (en) | Embedded system and remote control service apparatus | |
| CN201467140U (en) | Digitization broadcast system in train | |
| CN220691517U (en) | Help-seeking alarm device | |
| CN101651814A (en) | Embedded video server based on ARM framework and DSP framework | |
| CN104503727A (en) | Audio processing method and device based on KVM system, and server |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |