Development Of Dynamic Parameter Test System Of Belt Conveyor Based On Virtual Instrument

Dynamics parameters test is a foundation of developing monitor and protection device of the belt conveyor, and it is an important means to provides basic data of dynamic characteristic analysis of the belt conveyor. In this paper, a new kind of integrated dynamic parameters test system of the belt conveyor is developed based on the technology of single chip microcomputer and virtual instrument, which provide a technique to measure the key dynamic parameters of the belt conveyor and to process the correlative data.This test system includes four modules, which are signal collection module, communication interface module, data processing module and result showing module. The signal collection module includes test sensor, corresponding pre-amplifier circuit, and signal acquisition plate, and the single chip microcomputer of ATmega8 as main control chip. Field bus technology is adopt in communication interface module, and CAN(Controller Area Net) bus and RS-232 standard communication interface is used to perform the data communication between the single chip microcomputer communicates and the computer, where, some measures are used to restrain interference signal such as shielding, isolating, filtering and etc. Otherwise, the operating interface and test platform software of dynamics parameters test system of belt conveyor is developed by virtual instrument platform LabVIEW, which can be used to analysis, process, storage and display of the test signal.According to the hot issues in the dynamic characteristic analysis and operation monitoring research of the belt conveyor, the signal collection modules of running deviation, dynamic tension and speed of conveyor belt are detailed design, and the functions of the signal on-line monitor of the running deviation, dynamic tension and speed of conveyor belt are realized.The test result which is acquired on the belt transmission experiment platform by this dynamic parameters testing system of belt conveyor and the theoretical computation are basically tallied. It is proved that this system runs steadily with relatively high testing precision. And this testing system provides a kind of useful measuring tools for dynamic characteristics researching and further development of protecting and monitoring device on belt conveyor.