| With the rapid development of science and technology, the use of cable increasing gradually, and most system faults are caused by the cable faults. Cable fault detection and location has also become an indispensable part of the test. The cable fault detection and rush-repair aided system is urgently needed.This paper gave an ETX embedded system to improve the precision of fault detection and positioning speed. The system included the MS9S12DG128 that was the control core of the system, the PC 104 A/D data acquisition card based on CPLD, digital 10 card, sine wave signal generator, AC servo motor and the MS6818 cable locator etc. The system could detect the status of the cable short-circuit, open-circuit and incomplete weld, and also quickly located this states.The system solution used the form of "ETX embedded computer platform+ detection control module+accessories" to build the hardware platform in utilization of sophisticated computer technology and electronic control system design techniques. Included an cable rush-repair auxiliary equipment, a set of faulting welding vibration table, a fault locator, a line of flight plug adapter, plug cover a flight, repair tools, a toolbox and a set of packing box. Each equipment had respectively functions and used in conjunction with each other.The paper introduced the background and significance of the project, the principles of cable fault detection, the precious fault detection and repetition measurement after maintenance.Next it described the specific implementations to determine the overall hardware and software design, the program of the MCU and the PC software. Finally, it gave the hardware debugging line process and the practical detection situation after the process of simulation. The system had completed and formally delivered to the customer application. It ran well and had achieved the desired design objectives. |
