Device for online detecting and locating cable fault based on SOPC (System On Programmable Chip) technology
A cable fault and locating device technology, which is applied to the fault location and uses the pulse reflection method to detect faults, etc., can solve the problems of poor measurement accuracy, high operator requirements, and easy interference, and achieves strong versatility and improved flexibility. The effect of flexibility and integration, great flexibility
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[0030] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0031] The invention provides a cable fault on-line detection and location device based on SOPC (System On Programmable Chip) technology, classified from functions, including a detection signal generation module, a detection signal conditioning module, a signal isolation coupling module, a reflection The signal conditioning and sampling module and the fault type judgment and location module will be introduced separately below.
[0032] The detection signal generation module is mainly composed of FPGA and high-speed DA. Inside the FPGA, the hardware description language is used to generate the m-sequence, and the internal memory of the FPGA is used to generate a sine wave signal with the same frequency as the code rate of the m-sequence slice, and then the hardware The description language modulates the generated m-sequence and sine wave, an...
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