TW3 Underwater LiDAR Resistant to Strong Light 100Klux for Pool Cleaner Robots

The YDLIDAR TW3 lidar is a 360 ° 2D underwater lidar (hereinafter referred to as “TW3”) developed by Shenzhen EAI Technology Co., Ltd. This product is based on the pulse ToF ranging principle, combined with relevant optical, electrical, and algorithmic designs, to achieve high- frequency and high-precision distance measurement. Additionally, the mechanical structure rotates 360°, continuously acquiring angle information, thereby achieving 360° scanning and ranging and outputting point cloud data of the scanned environment.

Addressing Pain Points: How YDLIDAR TW3 Breaks Technological Barriers and Reshapes Pool Cleaning Reliability Standards

1st Feature: 100Klux Anti-Light Technology to Overcome Ambient Light and Turbid Water Interference

Traditional infrared laser LiDARs are easily affected by strong reflections from water ripples, underwater lighting, and turbid water, leading to positioning errors, obstacle-avoidance failures, and significantly reduced detection ranges—sometimes below 0.5 meters—thereby greatly diminishing cleaning efficiency. In contrast, EAI’s green laser LiDAR TW3, equipped with proprietary 100Klux-strong light-suppression technology, offers superior penetration and a longer effective underwater range, making it ideal for outdoor aquatic environments. Even in turbid water with high suspended particulate levels, it maintains stable, precise detection performance, thoroughly overcoming surface glare and turbidity interference, delivering true all-weather excellence and providing a reliable perceptual foundation for intelligent algorithms.

Strong Light Resistance Test: TW3 tested under 100 kLux light intensity and water turbidity ≤ 0.5 NTU, achieving a range distance >3 meters.

Turbidity Test: TW3 tested under ≤ 100 KLux light intensity and 5 NTU turbidity, achieving a range of >1.3 meters.

2nd Feature: Distortion-Free Point Cloud, 360° Scanning for Precise Navigation and Obstacle Avoidance

Many pool cleaning robots still rely on random collision cleaning methods without path planning, resulting in low efficiency. YDLIDAR TW3 utilizes distortion-free point cloud technology and 360° scanning to generate high-fidelity, high-precision underwater environmental point cloud maps in real time, accurately replicating pool floor terrain, steps, drains, and even dynamic obstacles. This enables cleaning robots to achieve centimeter-level precision in real-world map reconstruction, empowering them with precise positioning, autonomous navigation, and intelligent obstacle avoidance capabilities.

Mapping Test: TW3 fixed on a fixture and placed in a pool for scanning, with normal point cloud output—no broken lines or noise fluctuations.

3rd Feature: Precision Elevation Angle for Perfect Adaptation to Complex Pool Structures

Pool floors exhibit extreme complexity, including slopes, walls, and irregular shapes, making path planning more challenging for underwater robots than for ground robots. YDLIDAR TW3 features an innovative 1° precision elevation-angle design, allowing the laser beam to perfectly align with the junction of pool walls and floors, thoroughly eliminating scanning blind spots in corners and on slopes, achieving full-coverage cleaning, and enhancing end-user satisfaction.

4th Feature: Specialized Materials Resisting Chemical Corrosion for Enhanced Durability

Chlorine, salt, and other chemicals in pool water are “invisible killers” of electronic devices, continuously corroding equipment, leading to waterproofing failures, component damage, and increased after-sales costs and brand risks. YDLIDAR TW3 uses high-performance composite materials resistant to salt, chlorine, and oxidation, and is fundamentally suited to harsh pool chemical environments. This significantly extends product lifespan, reduces failure rates, and lowers maintenance costs, providing robust support for the reliability of pool cleaning robots.

5th Feature: Rugged Housing with Deep Waterproofing for Depths Up to 5 Meters
Waterproofing is the lifeline of underwater devices. YDLIDAR TW3 adopts a dual-layer sealed waterproof structure with an IP68 protection rating, ensuring long-term stable operation at depths of 0.5 to 5 meters. It fearlessly withstands water pressure and penetration risks, delivering unwavering support for all-weather underwater robot operations.

Ranging Tests on Various Materials: white baffles, waterproof paint, PVC tiles, mosaic surfaces, point cloud remains normal, and underwater accuracy meets expectations.

Empowering the Intelligent Transformation of Pool Cleaning Robots: A Generational Leap from “Feature Robot” to “Smart Robot,” Helping Brands Seize Definition Rights for the Next Generation of Pool Cleaning Robots.