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In order to solve the problem of video monitoring system in the data acquisition speed is slow and heavy task of problem, put forward a scheme of embedded data acquisition and processing system based on DSP technology. Scheme makes full use of the powerful calculation of the advantage of DSP technology, to realize fast operation system and effective control. In this thesis, the hardware design and software design are oriented to complete detailed design of the system. In the hardware design part, according to the principle of selection of system requirements and DSP chip, the system chooses the TI 32 bit fixed point DSP chip TMS320F2812, and the method for determining the overall design of the system, completed the design of data acquisition module to control AD chip; in the system software design part, mainly is to control the external expansion of the chip, which including the control of AD and DSP to read and write data acquisition timing program etc..