I. Requirements Analysis

China currently faces severe power shortages, with transmission lines frequently operating beyond capacity. The aging of towers, fittings, insulators, and other components is becoming increasingly critical, as defects cause temperature spikes. There is an urgent need for a monitoring system that can both provide video surveillance and measure temperatures of towers, fittings, clamps, insulators, and other equipment. This system would provide decision-making support for transmission line maintenance while ensuring stable line operation.

II. Working Principle

Aerial Line Image Video Monitoring Device (Dual-Spectrum PTZ Camera) primarily employs dual-spectrum infrared and visible light video monitoring, comprising a main control unit, communication module, power supply module, dual-spectrum PTZ camera, and wireless transmission unit; Powered by solar energy and lithium batteries, it utilizes the front-end dual-spectrum dome camera to collect video data. Image/video data is transmitted to the monitoring center via 4G/5G/WIFI/OPGW fiber optic networks. This enables real-time temperature monitoring of transmission line towers and equipment, promptly detecting thermal defects and issuing early warnings. It provides comprehensive status tracking of tower conditions, hardware fittings, insulator strings, conductors, and clearance zones, ensuring stable line operation.

III. Features and Functions

1. Equipped with dual-spectrum infrared technology for real-time temperature monitoring of tower equipment, enabling timely detection of thermal defects and early warning capabilities.

2. Supports picture-in-picture and image fusion for visible light and thermal imaging;

3. Supports automatic generation, online viewing, and one-click export of infrared inspection reports;

4. Comprehensive Intelligent Dynamic Monitoring: The pan-tilt unit supports 360° horizontal rotation and -90° to +90° vertical rotation.

5. 40x optical zoom enables comprehensive monitoring of tower conditions, hardware, insulator strings, conductors, and clearance details.

6. Industry-specific intelligent analysis algorithms support image capture analysis and AI target recognition capabilities.

7. Supports automatic line inspection;

8. Intelligent AI features support fog penetration, intelligent exposure AE, and intelligent focus AI.

9. Supports real-time video monitoring functions, including pan-tilt control, zoom control, and night vision capability.

10. Supports automatic video patrol functionality, with configurable patrol modes. Configuration options include operational cycle, operating time, patrol route, and other related information.

11. Features multiple operating modes including sleep mode, scheduled capture, real-time video, and 24/7 continuous operation to accommodate diverse operational requirements.

12. The device should be capable of collecting information such as power supply voltage and mobile communication signal strength at the installation point, with a minimum data collection interval of 1 minute.

13. The monitoring center platform enables remote power on/off control of cameras, as well as remote configuration and control of camera focal length, aperture, depth of field, image quality, PTZ orientation, preset positions, and other settings.

14. The equipment supports the China Southern Power Grid communication protocol and can connect to the power grid company's internal network platform (supports APN access capability).

15. Under conditions of continuous absence of sunlight and no other power supply, the split-type unit's battery should be capable of sustaining the monitoring device's normal operation for at least 15 days.

16. If an alarm device is configured, it will automatically select the voice alarm mode for on-site alerts when the alarm is triggered (alarm and public address functions can be remotely enabled or disabled).

IV. Technical Specifications