General surveillance cameras can see people clearly under good lighting conditions, but cannot see clearly under poor lighting conditions. But surveillance cameras with infrared capabilities can see people clearly.
Infrared surveillance is a technology that uses infrared imaging systems to monitor targets based on infrared technology. The infrared sensor converts the infrared signal from the target into an electrical signal, amplifies the electrical signal, and then performs three major processes: graphics, data, and control, and transmits the processed signal.
The infrared lamp of infrared monitoring emits infrared rays to illuminate the object. The infrared rays are diffusely reflected and received by the surveillance camera to form a video image. Just like using a flashlight to illuminate in the dark, the flashlight is equivalent to an infrared light, and the camera is equivalent to the human eyeball. The principles are the same.
Extended information:
Advantages of infrared cameras:
1. Sensitive to temperature, images are formed based on temperature, temperature data can be quantitatively identified, and can be User-defined temperature alarm limits. It not only displays the infrared temperature image of the forest, but also displays the temperature data at the same time, and also outputs the temperature abnormality alarm signal.
2. The alarm is triggered when the alarm occurs, and the alarm trigger signal is generated and transmitted to the background device through the RS232/485 port.
3. It can completely penetrate dense smoke and penetrate dense fog with partial attenuation.
4. No visible light is required, and the image clarity at night is even better than during the day.
5. Fast response speed, 50HZ image output per second.