With the rapid development of new energy sources and the continuous expansion of power transmission and distribution networks, traditional manual inspections can no longer meet the demands of modern power grids for safe, efficient, and intelligent operation and maintenance. Drone inspection is becoming a key driver of digital transformation in the power industry, while high-performance payloads are critical to achieving precise and efficient inspections.
Designed for drone-based power inspection, the ULIRVISION TD40S four-in-one UV camera integrates ultraviolet imaging, infrared thermal measurement, HD visible imaging, and laser ranging. A single flight enables comprehensive detection of corona discharge, thermal anomalies, equipment appearance, and target distance, delivering accurate and efficient condition assessment for power infrastructure.
Captures hidden dangers such as weak corona discharge and partial discharge.
Utilizes a 240–280nm all-day blind detector with ultra-high sensitivity, supports 1-12x continuous zoom, and full-range focusing from 3m to infinity, accurately locating discharge points at long distances.
Quickly detects thermal defects such as equipment overheating and poor contact.
640×512 high-definition infrared resolution, 8–14 μm standard temperature measurement band, and 12 infrared color palettes (iron red, rainbow, black and white thermal images, etc.) to adapt to different operating environments.
Clearly records the appearance of equipment, aiding in defect location.
5-megapixel high-definition imaging, with visibility as low as 0.3Lux in low light, supports 4x optical zoom + 12x digital zoom, simultaneously recording appearance defects such as damage, corrosion, and deformation of poles, conductors, and hardware, providing intuitive evidence for defect identification.
Real-time acquisition of target distance, improving inspection efficiency.
Maximum 150m ranging range, simultaneously recording the distance to potential hazards. Combined with multi-light overlay images, it accurately archives defect locations, providing precise coordinate data for subsequent defect elimination.
The TD40S features a multispectral fusion algorithm, supporting free switching between 7 imaging modes to meet the needs of various inspection scenarios:
Ø UV imaging ØThermal imaging Ø visible light imaging
Ø UV + visible light overlay Ø UV + infrared overlay
Ø infrared and visible light split-screen Ø UV overlay + infrared split-screen.
This multispectral overlay method effectively solves the problem of repeatedly switching devices and comparing different images in traditional inspections.
In common inspections of transmission lines, substations, and renewable energy plants, users can choose from several frequently used modes, such as UV + visible light overlay, infrared + visible light split-screen, and UV overlay + infrared split-screen, depending on their specific needs. Especially in UV + infrared mode, users can intuitively perform multi-dimensional analysis of "temperature rise + discharge": During the inspection of a transmission line, a drone equipped with a TD40S UV + infrared sensor simultaneously captures the continuous corona discharge spot on the spacer bar of the drain line, while infrared displays a slight temperature rise at that point.
While UV alone only shows discharge and infrared alone does not show significant high temperatures, the fusion mode can comprehensively identify high-risk defects involving both discharge and heat generation, pinpointing the fault location in one go without the need for secondary retesting, thus avoiding the risk of line breakage and tripping. This multi-dimensional diagnostic logic effectively solves the problems of misjudgment and missed detection caused by single sensors.
Designed for drone inspection needs, the TD40S features a lightweight structural design with a total weight of ≤450g, balancing high performance and low load, allowing the drone to fly lighter and more stably. It is also compatible with common DJI M350 and M400 industrial drones, and can be used plug-and-play without modification.
Power Industry
Inspection of transmission lines, substations, distribution network towers, insulators, surge arresters, circuit breakers, and cable joints; simultaneous inspection for corona discharge, overheating defects, and cosmetic damage; adaptable to the entire process of peak summer demand, annual preventative testing, and acceptance of newly built lines.
Electrified Railways
Inspection of high-speed railway traction substations, overhead contact lines, disconnect switches, and cable channels; timely detection of partial discharge and overheating hazards in track power supply equipment to ensure stable power supply for rail transit.
Research Institutions
High-voltage laboratory insulation performance testing, discharge mechanism research, and power equipment aging simulation tests; high-sensitivity ultraviolet imaging meets the high-precision data acquisition needs of scientific research.
Secondary Integration
The TD40S supports secondary integration and can be quickly integrated into intelligent inspection robot dogs and robots, with adaptability and debugging available to meet specific requirements.
u Integrated four-light system eliminates the cost of purchasing and disassembling multiple devices;
u Multi-light cross-verification provides dual evidence of discharge and heat generation, significantly improving the accuracy of defect identification;
u Lightweight design compatible with mainstream DJI industrial drones, eliminating the need for existing inspection teams to replace their drones;
u Industrial-grade durable design adaptable to various field conditions, including mountains, deserts, high humidity, and low temperatures;
u Standardized data output aligns with the digital ledger management requirements of power grid and railway maintenance.
