China's first heavy-duty railway hydrogen refuelling station - National Energy Group's Batuta Hydrogen Refuelling Station, which will be put into commercial operation in 2024, is equipped with the world's first low-temperature resistant self-service hydrogen refuelling robots and high-flow hydrogen refuelling machines capable of all-weather operation in environments as low as minus 25 degrees Celsius, with an explosion-proof 3D vision system from ALSONTECH providing visual guidance for the entire hydrogen refuelling process. The explosion-proof laser 3D camera independently developed by ALSONTECH fulfils the outdoor imaging and positioning function, and at the same time, the good protection performance and explosion-proof performance can guarantee the safety and stability of the hazardous gas refuelling process.