CN102595042A - Camera array system based on serial infinite cascade connection - Google Patents
Camera array system based on serial infinite cascade connection Download PDFInfo
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- CN102595042A CN102595042A CN2012100653738A CN201210065373A CN102595042A CN 102595042 A CN102595042 A CN 102595042A CN 2012100653738 A CN2012100653738 A CN 2012100653738A CN 201210065373 A CN201210065373 A CN 201210065373A CN 102595042 A CN102595042 A CN 102595042A
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Abstract
The invention discloses a camera array system based on serial infinite camera cascade connection. The camera array system comprises a conversion box, a computer and a camera(s) with an LVDS (Low Voltage Differential Signaling) interface(s), wherein one camera with one LVDS interface is directly connected with one end of the conversion box, or two or more than two cameras with the LVDS interfaces are connected end to end in sequence via the Ethernet, the last camera with one LVDS interface is connected with one end of the conversion box, and the other end of the conversion box is connected with the computer via the Ethernet; and the cameras with the LVDS interfaces generate images and corresponding LVDS image data; and the conversion box converts the LVDS image data into Ethernet image data, and transmits the Ethernet image data. The camera array system based on the serial infinite cascade connection provided by the utility model saves cost and bandwidth.
Description
Technical field
The present invention relates to a kind of camera array system, particularly a kind of camera array system of the infinite cascade based on serial.
Background technology
At present to connect be the video camera connected mode of extensive use to Ethernet, and every video camera is linked into the network interface card of computer through the ethernet line parallel way, and host-host protocol is the TCP/IP procotol, and transmission range is 100 meters farthest.If number of cameras is more, need through the Ethernet switch expansion interface, the network interface card that is connected to computer is 200 meters of transmission ranges farthest.Above-mentioned transmission means is widely used at present, good stability, and the relative USB2.0 of transmission range is equidistant far away, the speed advantages of higher.Shortcoming is: cost is high, and the attachable video camera number in the system receives the restriction of computer and switch network interface quantity.1000 of example number of cameras, every switch has 24 network interfaces (the Omate6012-24E-2S/SC type network interface of Omate company), then needs 42 switches, and serious like candid photograph, bandwidth waste in the not high application scenario of transmission rate request.
Summary of the invention
Technical problem to be solved by this invention provides a kind of camera array system of the infinite cascade based on serial, and it saves cost and conserve bandwidth.
For solveing the technical problem; The invention provides a kind of camera array system of the infinite cascade based on serial; It is characterized in that; It comprises boxcar, computer, has the video camera of LVDS interface, and the video camera with LVDS interface directly is connected with an end of boxcar, or the video camera that has the LVDS interface more than two and two joins end to end through ethernet line successively; Last video camera with LVDS interface is connected with an end of boxcar; The other end of boxcar is connected with computer through Ethernet, has the video camera photographic images of LVDS interface and generates corresponding LVDS view data, and boxcar converts the LVDS view data to the Ethernet view data and transmits.
Preferably; The video camera of the said LVDS of having interface comprises imageing sensor, random asccess memory, field programmable gate array, the module of unstringing, adds string module, LVDS interface; LVDS interface and the module of unstringing, add the string module and be connected; Unstring module, add the string module also be connected with field programmable gate array, field programmable gate array also is connected with random asccess memory, imageing sensor.
Positive progressive effect of the present invention is: when one, the present invention connects a large amount of video camera, if transmission rate is little with data volume, need not to use switch, the saving cost.Two, the video camera shot image data can temporarily exist in the random asccess memory (RAM, Random Access Memory) of local video camera, and in the time of need reading, conserve bandwidth etc. are read in computer control.
Description of drawings
Fig. 1 is the structural representation of camera array system that the present invention is based on the infinite cascade of serial;
Fig. 2 has the structural representation of the video camera of LVDS interface for the present invention.
Embodiment
Lift a preferred embodiment below, and combine accompanying drawing to come the clearer the present invention that intactly explains.
As shown in Figure 1; The camera array system that the present invention is based on the infinite cascade of serial comprises boxcar, computer, (the Low Voltage Differential Signal that has the LVDS interface; The Low Voltage Differential Signal interface) video camera; If have only a video camera with LVDS interface, then this video camera with LVDS interface directly is connected with an end of boxcar; If have the video camera of LVDS interface more than two and two; The video camera that then has the LVDS interface more than two and two joins end to end through ethernet line successively; Last video camera with LVDS interface is connected with an end of boxcar, and the other end of boxcar is connected with computer through Ethernet.Have the video camera photographic images of LVDS interface and generate corresponding LVDS view data, boxcar converts the LVDS view data to the Ethernet view data and transmits.
Video camera with LVDS interface comprises input and output; Input and output all adopt the LVDS data-interface (for example to adopt the FPDlink series serial interface chip of National company; Include but not limited to this family chip); Video camera with LVDS interface can join end to end all video cameras according to daisy chaining successively; First output with video camera of LVDS interface connects second input with video camera of LVDS interface, and second output with video camera of LVDS interface connects the 3rd input with video camera of LVDS interface, and the like; To the last the output with video camera (N platform video camera) of LVDS interface is received boxcar, and the video camera shot image data sends computer to through boxcar and Ethernet.Every video camera is the data acquisition end, is again the data relay station of higher level's video camera.There is the random asccess memory (RAM of local video camera in image after every video camera with LVDS interface will be taken; Random Access Memory) in; After waiting to receive the sense command of computer, local view data is being called over successively, be sent to computer until all data.Ethernet adopts and surpasses five types and above netting twine, comprises view data, RS485 control command etc. in the netting twine.
As shown in Figure 2; Video camera with LVDS interface comprises imageing sensor, random asccess memory, field programmable gate array (FPGA), the module of unstringing, adds string module, LVDS interface; LVDS interface and the module of unstringing, add the string module and be connected; Unstring module, add the string module also be connected with field programmable gate array, field programmable gate array also is connected with random asccess memory, imageing sensor.
The control mode of whole system adopts extra RS485 agreement control, also can adopt the embedded I of LVDS data centering
2The C agreement is controlled, and is used for controlling that video camera ID distributes, patrols and examines, parameter setting, video camera enable to activate, video camera triggers, data are read functions such as transmission.
For avoiding losing efficacy because of middle certain video camera; Cause system data to interrupt or communication disruption; Do not carrying out under the situation of data communication, can be by all devices in the computer automatic tour inspection system (video camera and boxcar), if disabling devices is arranged; Give a warning and change, thereby guarantee the normal operation of whole system.
The spacing maximum of every video camera can reach 10 meters, adds the length of ethernet line, and the length of whole system is N*10+100 (rice).Can use with Rail Highway along the line, the shooting of occasions such as factory's streamline also can be formed arbitrary shapes such as annular, matrix with N platform video camera by specific connection shape, uses other occasions.The present invention can be used to be installed in the railway station rail, is used to take the vital part in the every joint of train compartment, take finish after, the image with the part in every joint compartment is sent to computer successively, carries out data analysis, finds out failed part.
Though more than described embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these execution modes.Therefore, protection scope of the present invention is limited appended claims.
Claims (2)
1. camera array system based on the infinite cascade of serial; It is characterized in that; It comprises boxcar, computer, has the video camera of LVDS interface, and the video camera with LVDS interface directly is connected with an end of boxcar, or the video camera that has the LVDS interface more than two and two joins end to end through ethernet line successively; Last video camera with LVDS interface is connected with an end of boxcar; The other end of boxcar is connected with computer through Ethernet, has the video camera photographic images of LVDS interface and generates corresponding LVDS view data, and boxcar converts the LVDS view data to the Ethernet view data and transmits.
2. the camera array system of the infinite cascade based on serial as claimed in claim 1; It is characterized in that; The video camera of the said LVDS of having interface comprises imageing sensor, random asccess memory, field programmable gate array, the module of unstringing, adds string module, LVDS interface; LVDS interface and the module of unstringing, add the string module and is connected, the module of unstringing, add and go here and there module and also be connected with field programmable gate array, field programmable gate array also is connected with random asccess memory, imageing sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100653738A CN102595042A (en) | 2012-03-14 | 2012-03-14 | Camera array system based on serial infinite cascade connection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100653738A CN102595042A (en) | 2012-03-14 | 2012-03-14 | Camera array system based on serial infinite cascade connection |
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| CN102595042A true CN102595042A (en) | 2012-07-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681761A (en) * | 2016-03-09 | 2016-06-15 | 国网浙江省电力公司湖州供电公司 | Power transmission and transformation equipment status monitoring system based on daisy chain topology |
| CN107452224A (en) * | 2016-05-30 | 2017-12-08 | 二三视股份有限公司 | Parking Seat Monitoring System and Seat Detector |
| WO2022111594A1 (en) * | 2020-11-26 | 2022-06-02 | 华为技术有限公司 | Data transmission method and electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101500155A (en) * | 2009-02-20 | 2009-08-05 | 西北核技术研究所 | High frame rate CCD image remote real-time collecting method and system |
| CN101527826A (en) * | 2009-04-17 | 2009-09-09 | 北京数码视讯科技股份有限公司 | Video monitoring front-end system |
| CN102364928A (en) * | 2011-09-09 | 2012-02-29 | 深圳市三辰科技有限公司 | Network camera system |
-
2012
- 2012-03-14 CN CN2012100653738A patent/CN102595042A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101500155A (en) * | 2009-02-20 | 2009-08-05 | 西北核技术研究所 | High frame rate CCD image remote real-time collecting method and system |
| CN101527826A (en) * | 2009-04-17 | 2009-09-09 | 北京数码视讯科技股份有限公司 | Video monitoring front-end system |
| CN102364928A (en) * | 2011-09-09 | 2012-02-29 | 深圳市三辰科技有限公司 | Network camera system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681761A (en) * | 2016-03-09 | 2016-06-15 | 国网浙江省电力公司湖州供电公司 | Power transmission and transformation equipment status monitoring system based on daisy chain topology |
| CN107452224A (en) * | 2016-05-30 | 2017-12-08 | 二三视股份有限公司 | Parking Seat Monitoring System and Seat Detector |
| WO2022111594A1 (en) * | 2020-11-26 | 2022-06-02 | 华为技术有限公司 | Data transmission method and electronic device |
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Application publication date: 20120718 |