High-speed digital video storage system

A technology for digital video and storage systems, applied in the field of high-speed digital video storage systems, can solve the problems of complex equipment cables, low storage bandwidth, waste of system resources, etc., and achieve high system reliability, fast storage speed, and short connection distance. Effect

Inactive Publication Date: 2014-04-23
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Disadvantages of the prior art: 1. Slow speed and low storage bandwidth; 2. Only one type of camerlink camera can be stored; 3. The bandwidth and capacity of the storage system are fixed and cannot be reasonably adjusted according to actual usage requirements. Causes a waste of system resources; 4. The distance between the storage device and the camera is far away, and the conversion of the camerlink signal is required, which makes the device cable complicated and susceptible to signal interference

Method used

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Embodiment Construction

[0036] The high-speed digital video storage system adopts a modular design structure, the principle block diagram is as follows figure 1 As shown, the high-speed digital video storage system includes an interface unit, an integrated processing unit, a storage unit, a motherboard and a power supply;

[0037] Such as image 3 , the interface unit includes a Cameralink interface chip (DS90CR288AMTD), the first FPGA (EP2S30F672I4N), a bus driver (SN74LVTH16245) and a power management chip; the external Cameralink camera is connected to the first FPGA through the Cameralink interface chip, and the first FPGA is connected to the motherboard through the bus driver connect.

[0038] Such as Figure 4 , the integrated processing unit includes the main control CPU (TMS320DM6467T) and the second FPGA; the main control CPU is connected to the external network, and the main control CPU is connected to the motherboard through the second FPGA;

[0039] Such as Figure 5 , the storage uni...

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Abstract

The invention provides a high-speed digital video storage system. The system comprises an interface unit, a comprehensive processing unit, storage units, a mother board and a power supply. A Cameralink camera outputs a digital image. The interface unit converts LVDS serial data into parallel data. When the comprehensive processing unit receives a recording instruction of a main control computer, the interface unit outputs the data to the storage units through the mother board. The storage units write image data record to a FLASH chip array. The high-speed digital video storage system is fast in speed, digital recording for various cameras can be realized by modifying few codes, and recording time and capacity can be selected based on needs.

Description

technical field [0001] The invention relates to a high-speed digital video storage system, in particular to a system capable of realizing real-time lossless recording of high frame rate digital images output by different types of cameralink digital cameras, and synchronously recording current frame synchronization information. Background technique [0002] High frame rate cameras are mainly used in high-speed applications and recording tests of high-speed object collision processes, such as rocket launches, aircraft landings, car crash tests, etc. In these tests, real-time recording of test data is particularly important. Traditional film-type high-speed The camera cannot meet the current usage requirements in terms of frame rate or resolution. However, as the frame rate of the high frame rate digital camera continues to increase, the data volume of the output digital image is also increasing, and the storage bandwidth of the digital memory is also required to be higher and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/76H04N5/77
Inventor 丁璐刘波陈二瑞田广元郭高
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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