I. Requirements Analysis

Risk factors such as natural disasters like ice accumulation, strong winds, and mudslides, as well as external damage from construction machinery, persistently pose risks of widespread power grid failures. These hazards create significant safety concerns for stable grid operation, necessitating real-time monitoring and early warning systems to assess transmission line operational status through online monitoring methods. The State Grid Corporation of China's Eighteen Major Grid Accident Prevention Measures (Revised Edition) stipulates enhanced observation of conductor icing and vibration. Online monitoring devices and ice observation stations (points) should be installed in icing-prone and vibration-susceptible areas. Transmission line vibration status sensing terminals can detect line amplitude and frequency information, enabling effective early warning of potential hazards during line operation. With the development of the ubiquitous power Internet of Things, comprehensive perception of grid status is required, placing higher demands on the collection of massive metadata. Therefore, deploying transmission line sway status sensing terminals and systems enables timely acquisition of dynamic information about the line body and its channels, enhancing the intelligence level of transmission line status perception.

II. Working Principle

The Beidou Conductor Vibration Online Monitoring Device for Transmission Lines utilizes solar power and batteries for front-end power supply. It digitally compresses and encodes remotely collected vibration and micro-meteorological data, then transmits this field vibration data to the data monitoring center via 4G/5G/WiFi wireless transmission. Maintenance and monitoring personnel analyze and compare the vibration and micro-meteorological data sent from the field. Upon detecting abnormal warning signals, immediate corresponding emergency measures are implemented to ensure the safe operation of high-voltage transmission lines.

III. Features and Functions

1. Basic Configuration for Motion Monitoring: Main Control Unit, Motion Monitoring Unit, Communication Unit, Power Supply Unit, BeiDou Communication Module, Mounting Bracket, and Auxiliary Materials;

2. Data Acquisition Function: Collects conductor vibration information (amplitude, vertical amplitude, horizontal amplitude, frequency), enabling on-site storage and remote uploading;

3. Continuously and accurately monitor the displacement, acceleration, and angular displacement of field conductors in real time. Integrate sensor measurements from the equipment for analysis, data modeling, and timely diagnosis of abnormal conditions.

4. Through core functionality—micro-meteorological data collection and analysis—front-end parameters such as temperature, humidity, wind speed, and wind direction are processed in real time in conjunction with conductor sway measurements.

5. Features a stable and robust battery management system, WeChat client, and inspection functionality, with an integrated encrypted security chip. Ensures real-time, efficient, and accurate protection of on-site safety facilities.

6. Data Communication: Monitoring devices and data transmission base stations collect data via 2.4GHz wireless communication; data transmission base stations transmit data to the monitoring platform through 4G/5G/WIFI networks.

7. Supports remote control: The data transmission base station enables remote maintenance, parameter configuration, and remote upgrades, with the capability to connect to designated platforms.

8. Power Supply Method: The monitoring device utilizes both wire-based power extraction and solar power extraction methods.

9. Capable of performing scheduled self-checks on the unit's primary components, with active alarm triggering upon detecting anomalies.

IV. Product Specifications

Serial Number	Category	Project Name	Technical Specifications
1	Overall Performance	Complete System Configuration	Main Control Unit, Motion Monitoring Unit, Microclimate Monitoring Unit, Communication Unit, Power Supply Unit, Mounting Bracket, and Auxiliary Materials
		Overall quality	Less than 30 kg (including solar panels and mounting brackets)
		Material	Stainless steel body + hot-dip galvanized bracket
2	Motion Monitoring Unit	Communication frequency	470M
		Angle measurement range	－90°～90°
		amplitude	0–20 m
		Frequency	0.1 to 50 Hz
		Installation Method	Wire clamp fastening
		Longest measurement cycle	20 minutes
		Average power consumption	Power consumption ≤20μA (3V) 25°C (Expected lifespan >10 years)
		Antenna	External antenna, height ≤ 5 mm
		Battery capacity	13000mAh High-Temperature Lithium-Ion Battery (150°C)
		Housing Material	aluminum alloy
3	Micro-meteorological Monitoring Unit (Optional)	Air temperature	Measurement range: -40 to 80°C; Resolution: 0.1°C; Accuracy: ±0.3°C
		Humidity	Measurement Range: 0 to 100% RH Resolution: 0.5% Accuracy: ±3% RH
		Wind direction	Measurement Range: 0 to 360°; Resolution: 0.1°C; Accuracy: ±3°C
		Wind speed	Measurement Range: 0 to 60 m/s Resolution: 0.05 m/s Accuracy: ±0.3 m/s
4	Communication Unit	Communication method	All-network 4G/5G/WiFi/Beidou communication module/wireless transmission
		Data Security	Communication with the main site can utilize a dedicated VPN channel, with optional encrypted transmission.
		Access Protocol	Compatible with monitoring platforms of provincial power companies such as China Southern Power Grid and State Grid
5	Power Supply Unit	Battery capacity	60Ah/12V
		Solar Panel Power Rating	100W/18V
		Power supply duration	The device can maintain normal operation for 15 days without external power supply.
6	Other parameters	Work Environment	Operating temperature: -40°C to +70°C; Relative humidity: 5% to 99% RH
		Overall service life	Over 8 years
		Protection Rating	IP66