A method of accurate distance measurement based on communication messages
By introducing ranging request and response messages in power line carrier communication, and using channel estimate values and frequency deviation values for calibration and compensation, the synchronization deviation and clock frequency deviation problems during power line carrier communication are solved, and accurate distance measurement is achieved.
Patent Information
- Application Number
- CN202210039941.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-01-14
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2042-01-14
AI Technical Summary
The existing power line carrier communication technology has synchronization deviation and clock frequency deviation problems during distance measurement, resulting in large measurement errors and cannot meet the requirements of accurate distance measurement.
By introducing ranging request and response messages into power line carrier communication messages, the synchronization deviation and clock frequency deviation are calibrated and compensated by using channel estimates and frequency deviations, and the distance between the two sites is accurately measured.
The synchronization accuracy and time accuracy of power line carrier communication are improved, the distance between two devices is accurately measured, and the physical topological characteristics of the power line network can be accurately reflected.