Abstract
The principle of X-ray nondestructive testing (NDT) is analyzed, and the general scheme of the X-ray nondestructive testing system is proposed. The hardware of the system is designed with Xilinx!?s VIRTEX-4 FPGA in whichPowerPC and MAC IP core are embedded, and its peripheral circuits. The network communication software based on TCP/IP protocol, which runs on the hardware platform, is programmed by loading LwIP to PowerPC in XilKernal system. On the basis of analysing image processing algorithm, the image processing software running on the PC is programmed. The NDT of high-speed conveyor belt with steel wire ropes and network transfer function are implemented. It is a strong real-time system with rapid scanning speed, high reliability and remotely nondestructive testing function. The nondestructive detector can be applied to the detection of product line in industry.
Highlights
Conveyor belt with steel wire ropes, which is one of primary transfer equipments in modern production at home and abroad, is extensively applied in various realms, such as mine mountains, ports and wharfs, etc
The network communication software based on TCP/IP protocol, which runs on the hardware platform, is programmed by loading LwIP to PowerPC in XilKernal system
As a result of increased load capacity, conveyor belt scratched by barriers and aging, the steel wire rope comes into being tarnishing and cracking steel core or the joint is elongated
Summary
Conveyor belt with steel wire ropes, which is one of primary transfer equipments in modern production at home and abroad, is extensively applied in various realms, such as mine mountains, ports and wharfs, etc. Our country has developed conveyor belt detection equipment by this principle This method can just detect resultant curve, substantially detect fracture place and degree of steel wire ropes of conveyor belt, can not directly display inner image of steel wire ropes. The present detection systems are mostly at light running, low speed and high cost state, radiant is harmful to human body, so labor protection will be main problem. Against this background above, in this paper network and communication technique is imported to nondestructive detection system. Through loading LwIP to VIRTEX-4 FPGA that embedded PowerPC and MAC in nondestructive detector, a kind of architecture for the remote access and control networks is constructed based on TCP/IP .This system realizes the purpose of inspecting conveyor belt with steel wire ropes far from radiant source, and is more feasible to radiant protection and human safety
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