security monitoring industry cooling solutions
The surveillance camera is equipped with an infrared lamp with high calorific value. After the infrared lamp is started, there will be heat concentration in the front of the infrared camera in the whole working time period (calculated as 12 hours). If the heat dissipation is not uniform, the normal operation of the camera will be affected.
For example, if 50 ￠ 5 infrared light boards operate for a long time, the temperature on the LED board can almost reach about 90 degrees, and the CCD image sensor behind the LED board will be greatly affected. The CCD image sensor can directly convert the optical signal into analog current signal. The current signal is amplified and analog-to-digital conversion, which is used to realize image acquisition, storage, transmission and Important components for processing and reproduction.
6 common thermal solution for security monitoring:
1. Reduce the current. Using the infrared lamp with low power consumption instead of the infrared lamp with high power consumption can reduce the calorific value, but the effect is certainly not obvious when irradiating for a long distance.
2. The internal cooling fan or heatsink and temperature control function (adjust the speed through temperature sensing) can better escort the security monitoring camera.
3. Use a constant current power supply. Keep the current constant and control the heat dissipation of LED.
4. Grouping arrangement of LED lights. For example, 24 infrared rays can be arranged into three groups to reduce heat
5. Selection of structural materials. For example, the LED lamp board and shell are made of aluminum alloy and other materials with good heat dissipation.
6. Application of thermal conductive materials. The heat of the heating body is transmitted to the shell by using the heat conducting medium material, and then the heat is dissipated by natural convection.
Mainstream cameras are gradually moving towards high-end and high-definition pixels; Major security equipment manufacturers are gradually launching cloud storage solutions. Cloud storage manufacturers are combining all kinds of search, application technology and cloud storage, so as to provide enterprises with a series of data services. In this way, data storage devices will move towards larger and higher-end servers. Therefore, the cooling demand of mainstream cameras and monitoring servers will also increase.
