User line fault detection apparatus
By integrating a pulse generation module and a data acquisition module into a user line fault detection device, the signal loss problem caused by the complex circuit design in ETDR is solved, achieving efficient fault detection, improving detection accuracy, and simplifying hardware design.
CN119757980BActive Publication Date: 2026-06-02BEIJING HUAHUAN ELECTRONICS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING HUAHUAN ELECTRONICS
- Filing Date
- 2024-12-31
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing electrical time domain reflectometers (ETDRs) suffer from complex circuit design, significant signal loss, and reduced accuracy in cable fault detection.
Method used
A user line fault detection device was designed, which integrates a pulse generation module and a acquisition module into one unit. The conversion module realizes the conversion between pulse signal and differential signal, avoids multi-directional coupling of signal at transformer, and reduces signal loss and reflection amplitude attenuation.
Benefits of technology
It improves the accuracy of fault detection, simplifies hardware design, reduces signal loss and reflection amplitude attenuation, and enhances the ability to detect different types of faults.
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Smart Images
Figure CN119757980B_ABST
Abstract
The application relates to the technical field of line detection, and provides a user line fault detection device, which comprises a pulse generation module, a conversion module and a collection module, wherein the pulse generation module is connected with the conversion module and the collection module respectively, and the conversion module is connected with a user line; the pulse generation module is used for generating a first pulse signal for detecting the user line; the conversion module is used for converting the first pulse signal into a first differential signal and converting a second differential signal into a second pulse signal; and the collection module is used for processing the first pulse signal to obtain a first target signal and processing the second pulse signal to obtain a second target signal. The sending module and the collection module are integrated, the hardware design is simplified, the conversion module avoids signal loss and reduces the problem of reflection amplitude attenuation, and the accuracy of fault type detection is improved.
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