Unitree’s 3.9-million-yuan transformer robot, the GD01, went viral after a May 12 video showed founder Wang Xingxing piloting the nearly three-meter-tall machine, which punched through a brick wall. Elon Musk reposted the video with the word "cool." The GD01 is described as the world's first mass-produced manned transformer robot, priced from 3.9 million yuan and weighing 500 kilograms. The article highlights that its perception system is critical, as the robot supports humanoid upright and quadruped crawling configurations, causing constant changes in field of view, center of gravity, and obstacle distances. Infrared sensing is emphasized for capturing spatial and thermal information in low-light or harsh conditions, independent of ambient lighting. Near-infrared sensing components are already standard in industrial inspection, firefighting robotics, and drone obstacle avoidance. The near-infrared narrowband filter ensures clean light enters the sensor. Industrial-grade robotic vision sensors typically operate at 850nm or 940nm wavelengths: 850nm offers better imaging quality under indoor fill lighting, while 940nm provides stronger interference rejection in outdoor high-ambient-light conditions due to weaker solar radiation and lower background noise.