Based On Dsp Technology Of Drilling Engineering Parameter Data Acquisition System

The DSP technology is developing rapidly, it has been widely used in various fields such as communication, signal processing, automation and military affairs. Data acquisition is the core of signal processing. The data acquisition of high precision, informatization and intelligentization has become the development trend of modern data acquisition.Combined with the practical project background, the thesis puts forward a project of drilling engineering parameter data acquisition system based on the DSP technology used in the high temperature and pressure well, which can measure drilling pressure, torque, annular pressure and side pressure etc in the real-time way.On the basis of the singlechip measuring and control platform, the drilling engineering parameter data acquisition system based on the DSP technology adopts TMS320LF2407A digital signal processor of TI corp as the main controller. The controller not only has many advantages such as high-performance processing, low power consumption and high speed, but also integrates many peripherals which simplify the system design. The paper deeply researched on the realization of the hardware and software function, system debugging and anti-interference performance and so on.In the hardware part, the characteristics of main chips used in the system are introduced. The hardware circuit takes TMS320LF2407A as the core of the controller, mainly including signal regulation circuit, DSP minimum system circuit, data memory circuit and serial communication interface circuit.In the software part, paper presents the design and realization of software main frame and each functional module of DSP system. DSP software is compiled and debugged under integrated development environment CCS2000. It is programmed by C language and assembly language. The application program programmed by Visual Basic 6.0 under a Windows environment can receive and display the data through the visual, friendly man-machine interface.The hardware circuits and the software design are the core of the whole system. After debugging, the system can finish these tasks of data acquisition, data storage, data processing and data transmission. The test indicates that the performance achieves an expectant aim.