Industrial Sewing Machines, Computer Control System Developed

The computer control system of a high-speed industrial sewing machine is studied in the dissertation.The system's operation principle, the design nation with the core of 80C196KC MCU (micro-chip computer) also are discussed in the dissertationThe methods of a minimum operation system of MCU, the principle circuit of signal adjusting , data collecting , keyboard controlling , LED displaying, electromagnetic clutch and magnet valve power driver circuit etc. are proposed and realized.The author schemes out the system's principle circuit, and completes the design, debug of hardware and software, test of the prototype performances. On basis of embed system hardware, design demand and technical guideline, the main language are C196 and ASM. In the designation of system software, the author applies the idea of software engineering, adopts the modular designing method, and makes full use of the functions what the MCU offers, such as A/D function, interrupt function, PWM function, and software timer function. As a result, the following subroutines are programmed: keyboard scanning, A/D sample, LED displaying, data computing and dealing, software timer and control modules.Eventually, the problems, solutions and the personnel experience in designing and debugging are summarized.