In foreign countries, infrared thermal camera has been widely used in security. With the development of Internet of Things technology, people have gradually entered a new intelligent era. Based on the information carrier such as the Internet traditional telecommunication network, Internet of Things can enable any ordinary physical object that can be independently addressed to realize the interconnection and interworking network. At the present stage, the intelligent security with infrared thermal imaging technology is also developing rapidly. Because infrared thermal camera has the function of stealth detection, non-contact, zero illumination, because there is no need for light, so it saves the cost of producing visible light, intruders can't even know they are being monitored. And can penetrate smoke, fog, rain, smoke cloud and other bad conditions to continue to work, visible distance up to several kilometers, very suitable for border patrol, violence defense, night reconnaissance, industrial security, equipment security, port security, commercial security and other fields.

At present, most infrared cameras use low-illumination cameras. When the infrared light equipped with security monitoring sends out the specified wavelength signal, the camera will present the best effect through the night vision lens. Infrared camera consists of camera, infrared lamp, lens, infrared lamp power supply, etc. As far as the lens is concerned, the infrared lens has a relatively wide range of applications, which can be used for various special purposes corresponding to the infrared lens as well as ordinary lenses. And infrared security surveillance camera can also be used flexibly with conventional infrared cameras according to different occasions. Infrared security monitoring can be in a specific range of objects at night to capture the comparison, and its waterproof function is relatively advantageous, so compare all kinds of outdoor monitoring work at night.

As a mature technology, infrared technology has been applied in all walks of life. The infrared night vision technology has been applied in the field of security and protection, breaking through the difficult problem of night monitoring technology and truly realizing the 24-hour uninterrupted, all-weather monitoring applicable under various environments. The combination of infrared thermal imager and security system will be more widely used along with the demand of safe city construction and the increase of party A's more advanced demand, and will become an indispensable helper of security system and even the construction of safe city.