Line distance measurement method and system based on power line dual-mode communication latency
CN120652389BActive Publication Date: 2026-08-28BEIJING TENGINEER AIOT TECH CO LTD
Patent Information
- Application Number
- CN202510762549.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2045-06-09
AI Technical Summary
Technical Problem
目前，常用的电力线测距方法包括行波法、阻抗法、单模通信时延法等，但是，行波法需要高频采样设备，导致测量成本较高，而阻抗法的测距精度受电网负荷变化影响显著，难以保证测距的精准性，单模通信时延法则容易受到噪声干扰，无法保证测距精度
Benefits of technology
[0036]本发明的基于电力线双模通信时延的线路距离测量方法，以PLC和HRF双模通信为基础，可基于PLC通信时延测量得到节点与台区变压器之间的线路电气长度，基于HRF无线通信测量得到节点与台区变压器之间的几何空间距离，两种测量方式可根据信噪比或接收信号强度方差实施切换主辅角色，最后将测量的线路电气长度和几何空间距离进行融合得到线路距离，可以准确测量得到台区内任一节点与台区变压器之间的线路距离，大大提高了测距精度。
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Figure CN120652389B_ABST
Abstract
The application discloses a line distance measurement method and system based on power line dual-mode communication time delay, and the line distance measurement method is based on PLC and HRF dual-mode communication, can measure the line electrical length between nodes and a transformer substation transformer based on PLC communication time delay, and can measure the geometric spatial distance between nodes and the transformer substation transformer based on HRF wireless communication, two kinds of measurement modes can switch the main and auxiliary roles according to the signal-to-noise ratio or the received signal strength variance, and finally, the measured line electrical length and the geometric spatial distance are fused to obtain the line distance, so that the line distance between any node in the transformer substation and the transformer substation transformer can be accurately measured, and the distance measurement precision is greatly improved.
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Citation Information
Patent Citations
Dual-mode communication system based on power line carrier and wireless communication
CN118740202A
Power monitoring method and system based on dual-mode communication
CN119382343A