Our company's "Fully Automatic Body Spot Welding Detection" technology took 3 years to develop and was awarded an invention patent by the European Union and the Chinese National Patent Office. This technology has been successfully applied to FAW Red Flag and has achieved all assessment indicators. Our company has developed an ultrasonic welding point detection system, which integrates the world's most advanced 121-chip ultrasonic testing equipment, and has the following advantages: advanced visual guidance and appearance detection algorithms to ensure accurate welding point detection. The detection uses water coupling and does not require special coupling agents, greatly saving costs. The detection speed is fast, with an average detection speed of less than 5 seconds per point, greatly improving work efficiency. Real-time detection of weld quality can detect quality problems at the first time, avoiding larger quality accidents. This is one of the most important advantages of our system.