Abstract: This paper described the hardware composition of the wildfire detect instrument, explained the automatic identification algorithm and high accuracy positioning function by flame and smoke. A real wildfire caused by actual circle malfunction disorder and historical wildfire smoke images verified the performance of this instrument. Experimental data indicated that, the instrument insects the automatic identification function and high accuracy positioning function into normal infrared camera,can effectively identify the fire at initial phase, and has practical significance for the wildfire prevention of power line.

Key words: transmission line; wildfire monitoring; fire point positioning; fireworks identification