The Data Collection System Development For PCMM

The topic is a hardware circuit design, which is a port of the cooperation project with Canada, named Design of PCMM. For PCMM, in addition to the major mechanical components, circuit design is also an important part of completing the PCMM.The paper introduces foreign mainstream PCMM nowadays, and introduces the principles and components of the PCMM, then gives the design of the project that FPGA is the code and MCU is used to transmit the collection data. There are three parts needed resolving in this paper: operating interface with the PC computer, communications programming between pc and FPGA, and control programming of FPGA.The design of hardware circuit and the programming design of software are mainly introduced in this paper, which focus on the design and development of FPGA, and on the data transmission design with MCU. In interface aspects, the interface between FPGA and MCU, and the interface between PC and MCU are introduced.After initial debugging, it is proved that the hardware circuit, used in measurement machines, can operate normally, and that the hardware circuit can reach the requirements of angle encoder. With the co ordinate's conversion software, we can get the space location of measured point.