With the national fitness, a wave of "adventure fever" has been set off in recent years, allowing more and more ordinary people to join the group of "travelers". Green mountains, green water, birds, flowers and cliffs make outdoor sports full of surprises and challenges. However, due to the lack of experience of some travelers, safety measures are not in place, the lack of vigilance on the occurrence of danger, resulting in many travelers lost their way climbing, fall and even death.

In case of the disappearance, the police, fire protection and civil rescue team will take rescue measures within the first time, but due to the mountainous terrain complex, large area, fog, poor vision at night, to the rescue work brought a lot of trouble. This is where infrared thermal camera comes in.

Infrared thermal imager is the use of infrared detectors and optical imaging lens receives the infrared radiation signal of the measured target, after infrared detector photosensitive element and use electronic scanning circuit of the infrared thermal image of the measured target scan, transform infrared radiant energy into electrical signal by the detector, the amplification processing, conversion, or standard video signal through the television screen or monitor shows that the infrared thermal image map. It has a long distance, strong concealment, strong penetration ability, all-weather work, anti-glare interference, and can identify hidden targets. It plays a very important role in field rescue.

At the same time, in the case of light or low light, the terrain and landforms can be clearly identified through the thermal imaging instrument, which is convenient for hiking travelers to set up camp safely at night, and can also simply see the moving wild animals in the distance to avoid the attack of wild animals. In the daytime or in rainy and snowy weather, the thermal imaging device can effectively penetrate the smoke and snow, enabling the travelers to see the road conditions and surrounding environment in misty and snowy weather, and providing guarantee for the safety and efficiency of outdoor activities.