On July 5, 2019, at the invitation of Hangzhou Power Supply Company of Zhejiang Electric Power Company, we went to Hangzhou Binjiang Power Supply Bureau of Zhejiang Province for teaching demonstration, and demonstrated and demonstrated the use of HLN-TW100 night vision fog-capture recording instrument. Methods, through on-site Q&A, to solve the problems of local staff and leaders in the operation and system of the HLN-TW100 night vision fog camera. The effect of the live demonstration was recognized by the local leaders, and the problem of the operation of the instrument by the local power supply company was fully solved.