CN203574782U - Multi-channel video image acquisition and transmission device based on camera interface standards - Google Patents
Multi-channel video image acquisition and transmission device based on camera interface standards Download PDFInfo
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- CN203574782U CN203574782U CN201320611514.1U CN201320611514U CN203574782U CN 203574782 U CN203574782 U CN 203574782U CN 201320611514 U CN201320611514 U CN 201320611514U CN 203574782 U CN203574782 U CN 203574782U
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Abstract
The utility model relates to a multi-channel video image acquisition and transmission device based on camera interface standards. The device is a multi-channel video image acquisition and transmission device. An image acquisition module is connected to a master control module, which is connected to an image output module and a camera communication and control module separately. A peripheral circuit module is connected to the master control module. The device is advantaged in that the device is novel in structure, can collect data from a plurality of cameras simultaneously, and is provided with extra interfaces, so that more cameras and loads can be added, and thus the device has certain scalability. Meanwhile, the device allows control of camera work modes and communication with computer interfaces. As camera interface standards are employed as main communication protocols, quick and stable communication of large-amount image data flows is ensured, hardware resources and costs are saved, and the whole device is simple, stable, reliable and highly resistant to interference.
Description
Technical field
The utility model belongs to a kind of multiple paths of video images collection and transmitting device.
Background technology
Multi-channel video imaging system is generally carried Visible Light Camera, infrared camera and multispectral camera etc., data volume is large, transmission rate is high, requirement of real-time is high, environment is very large on the impact of precision and transmission range, has brought very high requirement to real-time data acquisition, storage and transmission.Therefore, adopt reliable and stable interfacing and scheme to solve data transmission problems very important.Camera interface standard (CameraLink) is with its intrinsic low-voltage, low-power consumption and be conducive to the features such as high-speed transfer, becomes just gradually the first-selected interface standard of broadband high-speed system.Adopt after this standard, make the data-interface output of digital camera adopt less line number, stube cable, more easily manufacture, have more versatility, and make the transmission range of data more farther than normal transmission mode, in being just widely used in vision system collection and communicating by letter.And how to utilize the collection of camera interface standard implementation multiple paths of video images signal and transmission, it is the technical problem that will solve at present.
Summary of the invention
The utility model provides a kind of multiple paths of video images collection and transmitting device based on camera interface standard, with solve multiple paths of video images real time data acquisition in practical application, storage, with the problem such as transmission.
The technical scheme that the utility model is taked is: image capture module is connected with main control module, and main control module is connected with control module with image output module, camera communication respectively, and peripheral circuit module is connected with main control module;
Described main control module: PGA forms by field programmable logic unit F, the pixel data of the camera input that responsible reception receiver transmits, and buffer memory therein, and these pixel data are sent to receiver, also by camera communication module, open or close each camera, also by serial ports, receive PC control instruction, power module is its power supply;
Described image capture module: formed by three railway digital cameras, connector, camera interface normal data receiver, according to the requirement of camera interface standard interface protocol, the view data of camera output is write to buffer memory in the main control module consisting of FPGA;
Described camera communication control module: be comprised of signal converter and serial ports, main control module carries out external trigger operation by signal converter to camera, serial ports receives PC control instruction and issues main control module;
Described image output module: comprise Low Voltage Differential Signal transmitter, capture card and display, utilize Low Voltage Differential Signal transmitter, convert the view data of the TTL type of FPGA output to Low Voltage Differential Signal that capture card can receive, the data of output show after finally being gathered by image pick-up card on display;
Described peripheral circuit module: comprise power circuit, required clock, the reset circuit of main control module, in order to guarantee the work of whole device.
The utility model has the advantages that novel structure, can gather the data of multiple cameras simultaneously, and leave extra interface, can increase more camera and load, there is certain extensibility.And can realize control to camera mode of operation and the interface communication with computer simultaneously.Owing to adopting camera interface standard as main communication protocol, guaranteed the communication of great amount of images data flow fast and stable, and main control chip adopts on-the-spot Programmadle logic array FPGA, saved hardware resource and cost, make whole device there is the advantages such as easy, stable, reliable, strong interference immunity.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Image capture module is connected with main control module, and main control module is connected with control module with image output module, camera communication respectively, and peripheral circuit module is connected with main control module.
Described main control module: PGA forms by field programmable logic unit F, the pixel data of the camera input that responsible reception receiver transmits, and buffer memory therein, and these pixel data are sent to receiver, also by camera communication module, open or close each camera, also by serial ports, receive PC control instruction, power module is its power supply;
Described image capture module: formed by three railway digital cameras, MDR26 connector, camera interface standard C ameraLink data sink DS90CR288, according to the requirement of camera interface standard interface protocol, the view data of camera output is write to buffer memory in the main control module consisting of FPGA;
Described camera communication control module: be comprised of signal converter and serial ports, main control module carries out external trigger operation by signal converter to camera, serial ports receives PC control instruction and issues main control module;
Described image output module: comprise Low Voltage Differential Signal transmitter, capture card and display, utilize Low Voltage Differential Signal transmitter DS90CR285, convert the view data of the TTL type of FPGA output to Low Voltage Differential Signal that capture card can receive, the data of output show after finally being gathered by image pick-up card on display;
Described peripheral circuit module: comprise power circuit, required clock, the reset circuit of main control module, in order to guarantee the work of whole device.
The utility model main control module adopts the Cycloneiii Series FPGA of altera corp, has been responsible for the real-time control with interface control, data buffer storage, transmission and the camera of each external equipment and internal system module.Image capture module is comprised of digital camera, MDR26 connector, DS90CR288 receiver, and wherein camera comprises Visible Light Camera, infrared camera and multispectral camera etc., and the data format of output is CameraLink basic configuration.The data of CameraLink interface digital camera output are Low Voltage Differential Signal signals, and need convert TTL signal to through DS90CR286 receiver could be processed by FPGA.Image output module is mainly low-voltage differential signal line road transmitter DS90CR285 and connector, for converting view data and the control signal of the TTL type of FPGA output to Low Voltage Differential Signal differential signal that CameraLink capture card can receive.DS90CR285 and DS90CR286 are a pair of transceivers, the conversion being used between Low Voltage Differential Signal and TTL signal.The data of DS90CR285 output show after via image pick-up card collection on display.Capture card is selected the capture card that meets CameraLink communication protocol.
Claims (1)
1. multiple paths of video images collection and the transmitting device based on camera interface standard, it is characterized in that: image capture module is connected with main control module, main control module is connected with control module with image output module, camera communication respectively, and peripheral circuit module is connected with main control module;
Described main control module: PGA forms by field programmable logic unit F, the pixel data of the camera input that responsible reception receiver transmits, and buffer memory therein, and these pixel data are sent to receiver, also by camera communication module, open or close each camera, also by serial ports, receive PC control instruction, power module is its power supply;
Described image capture module: formed by three railway digital cameras, connector, camera interface normal data receiver, according to the requirement of camera interface standard interface protocol, the view data of camera output is write to buffer memory in the main control module consisting of FPGA;
Described camera communication control module: be comprised of signal converter and serial ports, main control module carries out external trigger operation by signal converter to camera, serial ports receives PC control instruction and issues main control module;
Described image output module: comprise Low Voltage Differential Signal transmitter, capture card and display, utilize Low Voltage Differential Signal transmitter, convert the view data of the TTL type of FPGA output to Low Voltage Differential Signal that capture card can receive, the data of output show after finally being gathered by image pick-up card on display;
Described peripheral circuit module: comprise power circuit, required clock, the reset circuit of main control module, in order to guarantee the work of whole device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320611514.1U CN203574782U (en) | 2013-10-02 | 2013-10-02 | Multi-channel video image acquisition and transmission device based on camera interface standards |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320611514.1U CN203574782U (en) | 2013-10-02 | 2013-10-02 | Multi-channel video image acquisition and transmission device based on camera interface standards |
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| CN203574782U true CN203574782U (en) | 2014-04-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378560A (en) * | 2014-10-16 | 2015-02-25 | 苏州佑瑞检测技术有限公司 | Graph collecting system based on CMOS camera |
| CN106404185A (en) * | 2016-11-16 | 2017-02-15 | 昆明物理研究所 | Staring digitization infrared imaging assembly |
| CN108272435A (en) * | 2017-12-21 | 2018-07-13 | 芜湖圣美孚科技有限公司 | A kind of measurement in space system for lingual surface instrument |
| CN111741219A (en) * | 2020-07-05 | 2020-10-02 | 北京安洲科技有限公司 | Multi-interface intelligent image acquisition card for remote sensing measurement |
-
2013
- 2013-10-02 CN CN201320611514.1U patent/CN203574782U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378560A (en) * | 2014-10-16 | 2015-02-25 | 苏州佑瑞检测技术有限公司 | Graph collecting system based on CMOS camera |
| CN106404185A (en) * | 2016-11-16 | 2017-02-15 | 昆明物理研究所 | Staring digitization infrared imaging assembly |
| CN106404185B (en) * | 2016-11-16 | 2019-12-06 | 昆明物理研究所 | staring digital infrared imaging assembly |
| CN108272435A (en) * | 2017-12-21 | 2018-07-13 | 芜湖圣美孚科技有限公司 | A kind of measurement in space system for lingual surface instrument |
| CN111741219A (en) * | 2020-07-05 | 2020-10-02 | 北京安洲科技有限公司 | Multi-interface intelligent image acquisition card for remote sensing measurement |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141002 |
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| EXPY | Termination of patent right or utility model |