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1. Equipment Overview
The panoramic image acquisition device is mainly used for 12-channel Base Camera link video acquisition and transmission, output through QSFP+ optical fiber transmission, and realizes server acquisition and storage, including acquisition composite board and optical fiber acquisition and storage server, supports outdoor industrial-grade temperature and long-term operation.
2. 12-channel composite optical fiber transmission board
1. 12-channel CameraLink BASE input interface, including CC signal and Uart, SDR26 connector. Camera Link is used to receive infrared camera or visible light camera video, CC1 is used to externally trigger visible light camera.
2. 12 automatic aperture control interfaces for visible light camera control.
3 12 independent RS232 or RS422, for infrared camera configuration; 1 trigger signal, LVCMOS level, connector pin25.
4 Visible light camera video input mode: Frame rate: 25f/s; Pixels: 2048×2048×12bit; BASE (2 pixels per transmission, i.e. 24bit)
5 Infrared camera video input mode: frame rate: 25f/s; pixels: 640×512×10bit; BASE (1 pixel per transmission, i.e. 10bit)
6. Interconnected with the server, image transmission uses 1 QSFP+ fiber optic interface, supports Aurora protocol, GTX supports speed of 6.25Gbps or 10Gbps.
7. Interconnected with the server, the control command uses an SFP+ interface, 1, supports Gigabit Ethernet network protocol, TCP/IP to upload commands and send status;
8. Board input power: voltage +24V, 1 2-wire connector.
It is required to convert +12V, provide 12 interfaces for visible light cameras, and provide 12 interfaces for infrared cameras.
9. Each connector refers to the camera interface and can be used in pairs. It has anti-reverse insertion function and anti-vibration protection.
10. Board operating temperature: -40℃～+85℃, meeting certain earthquake resistance requirements.
3. 12-channel image composite optical fiber transmission equipment software
1. Complete the synchronous acquisition of 1 to 12 camera (visible light/infrared) images;
2. According to the command of the host computer, complete the automatic aperture driving of 1 to 12 visible light cameras;
3. When collecting infrared camera images, always check the status of the infrared camera light shield;
4. According to the instructions of the host computer, complete the control of 1 to 12 infrared cameras through RS232, such as frame rate, settings, electronic zoom, etc.;
5. Visible light/infrared image data is sent to the PCIe board through the QSFP+ interface and single-mode optical fiber;
6. The optical/infrared camera control commands sent by the host computer can be received through the SFP+ optical module;
7. Image stitching from 12 cameras.
Camera link uses DS90CR286 chip to realize differential signal parallelization and obtain row and field data. One beat 2X12bit forms two 16-bit video data sequences, and then the data is processed by a ping-pong RAM, each row of the 12 cameras is spliced in a fixed order, and then output through Aurora IP.
The line blanking area and field blanking area of the data are removed, which will cause the fiber optic card to determine the start of the field. You can replace part of the data in the field header, such as 0x55AA55AA to replace the data at the beginning of the field.
TLP packets are sent through Aurora 4X IP, 4XGTX, and QSFP+ at a bandwidth of 40Gbps.
FPGA Complex Logic Software:
4. Camera management and control software development
Camera management includes infrared and visible light camera CC trigger, adjustable aperture, RS232, shutter signal, etc., as well as infrared camera light shield status, board status information, temperature information and voltage information.
5. Panoramic Image Acquisition and Storage Server
The panoramic image acquisition and storage server uses PCIe FPGA QSFP+ fiber acquisition card to realize image acquisition and display; it uses fiber optic Gigabit network card to realize the configuration management of the board.
Acquisition and storage software:
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提升卡
变色卡
千斤顶
京公网安备 11010802033920号
