Wireless video acquisition system based on DSP (digital signal processor) and CPLD (complex programmable logic device)
A technology of acquisition system and wireless video, applied in the field of electronics, to achieve the effects of low power consumption, good real-time performance and low cost
Inactive Publication Date: 2012-05-02
成都众询科技有限公司
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At the same time, the important problem is: in order to meet the requirements of practical applications, the video signal processing system must be able to collect and display in real time, and have enough storage space
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[0016] A kind of wireless video collection system based on DSP and CPLD, it is characterized in that: comprise video collection module, video display module and the power supply module that provides power for whole system,
[0017] The video acquisition module includes a BL-3298D model camera for collecting video signals, a preprocessing module for Y / C separation, synchronization separation, level clamping, and amplitude amplification processing of the collected video signals, and a preprocessing module for the preprocessed signals The TMS320F2812 chip for A / D conversion, the BL-3298D model camera sends the collected video signal to the pre-processing module for processing and then sends it to the TMS320F2812 chip for A / D conversion, and the pre-processing module sends the synchronization signal to the CPLD- XC2C256-7PQG208C main control chip;
[0018] Described video display module comprises CPLD-XC2C256-7PQG208C main control chip, has formed image storage cache by two slices...
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The invention provides a wireless video acquisition system based on a DSP (digital signal processor) and a CPLD (complex programmable logic device). The system comprises a video acquisition module, a video display module and a power module providing power to the whole system; and the system consists of two parts: a video acquisition module at the front end and a video display module at the rear end. The wireless video acquisition system based on the DSP and CPLD has the major functions of: acquiring video data through a CCD (charge coupled device) camera, converting an analogue video signal into a digital video signal through a DSP TMS320F2812; then sending the digital video signal to an image storage area; and finally converting the digital video signal into an analogue video signal with a D / A (digital / analogue) converter THS8135 and sending the analogue video signal to a display through an nFR2401 module for display. The system is good in real-time property, small in volume, low in cost, low in power consumption and strong in adaptability, and can realize the functions of video acquisition, video transmission and video display.
Description
technical field [0001] The invention relates to the field of electronic technology and provides a wireless video acquisition system based on DSP and CPLD. Background technique [0002] Images are human beings' cognition of the natural world by using the observation system, that is, the recording method that takes everything in the world as the recording object. Image information is an important carrier for human beings to understand the world. Many people in the industry at home and abroad have found that more than 80% of the information obtained by human beings comes from the life phenomena directly seen by the eyes. [0003] With the development of society, people's demand for real-time video is also increasing, and it is not difficult to find that video signal processing is becoming more and more important, and it is becoming the core direction of multimedia technology development. At the same time, the important problem is: in order to meet the requirements of practical...
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IPC IPC(8): H04N7/18
Inventor 熊璞张磊张永恒
Owner 成都众询科技有限公司