Dot Matrix Infrared Camera Installation and Thermal Problems

Dot matrix infrared cameras use dot matrix infrared light sources. The third-generation infrared light-emitting components used in dot-matrix infrared lamps are based on the second-generation product, the array-based infrared (LED--Array), and are also called second-generation LED-Arrays. Compared with the first generation, the second-generation LED-Array has the advantages of small size, good heat dissipation, low attenuation, long life, and a rated life of 50,000 hours. The lattice infrared camera is also called high-power array infrared. The biggest difference from the low-power array infrared is higher brightness and lower cost, and through the independent lens, the light distribution angle can be arbitrarily adjusted according to the needs of use. The first generation of "flashlight effects" and the second generation of "eccentricity."

How to install a dot matrix infrared camera

1, outdoor installation

If you want to install the infrared camera outside, you need to configure the outdoor enclosure. Outdoor cameras generally use an auto-zoom lens that can adjust the light required by the image sensor to improve the dynamic function of the camera and protect the image sensor from damage caused by strong light.

2, avoid direct shot sunlight

Try to avoid direct sunlight in the image. Direct light will prevent the camera from capturing images and may permanently decolor the color filters on the sensor wafer, resulting in image streaks. If possible, keep the camera in the same direction as the sun's rays when installing, and try to avoid shooting at the sky.

3, amplifier gain

The gain level of the image sensor can be adjusted in the computer. The higher the gain, the better the performance under low light, but the interference will also increase. When the light is weak, the user can use high gain to obtain better performance. When the light quality is good, the user can obtain high-quality images with low gain.

Six Ways to Address Thermal Problems with Dot Matrix Infrared Cameras

1, reduce the current. The use of infrared lamps with low power consumption instead of high-power infrared lamps, although reducing the amount of heat dissipation, but when the long-range radiation, the effect is certainly not as good as the latter.

2, in the lattice infrared camera plus cooling fan, this effect is certainly yes, but that is the test of the fan is very strict, and the addition of a fan for the design of the housing is also a test, to ensure beauty but also practical.

3, using a constant current power supply. Keep the current constant and control the heat dissipation of the LED.

4, LED lights arranged in groups. For example, with 24 infrared, it can be arranged in 3 groups to reduce heat.

5, the choice of structural materials. For example, LED lamps and housings use aluminum alloys and other heat-dissipating materials.

6, the use of automatic cooling and air conditioning with a cooling effect of forced cooling, automatic adjustment of the internal temperature of the lattice infrared camera, a good solution to this problem.

Resolve the difference between dot matrix infrared camera and dot matrix white light

The appearance and function of the dot matrix white camera and the dot matrix infrared camera in the market are very similar. Both are cameras that provide night-time dimming. The difference between them lies in the advantages of the two and the difference in image display. As the core of the security industry, the field of video surveillance is at the forefront of the world's industries. This is not what other countries can do in the area of ​​technological innovation. Video surveillance not only brings great convenience to people's lives, but also makes a major contribution to the promotion of domestic economic progress.

In the field of video surveillance, with the advent of first- and second-generation security surveillance cameras, a brand-new page has been opened to the field of video surveillance. The emergence of third-generation security surveillance cameras is in the first and second. Based on technology and innovation, it has also added a lot of energy to this area, which is destined to be included in the history of security night vision.

The dot matrix infrared camera is slightly inferior to the white light camera in the image display, but it is far above the technical advantage. First of all, the dot-matrix camera is not only high brightness, is composed of a plurality of LED lights, an infrared lamp luminous rate of 3W, and long life, the use of silicon rubber material package, good heat dissipation, low attenuation, life expectancy 20-30; Second, it has high efficiency, high-frequency tip charge power supply, and array of light-emitting crystal arrays. In the evening, the effective light collected is more full and the night vision effect is particularly good. Finally, the infrared light it emits at night is light that is invisible to the naked eye. It is of good concealment and is used to prevent burglars from playing a large role.

The most common infrared cameras are also divided into first-generation ordinary LED infrared cameras, second-generation array LED infrared cameras, and third-generation dot matrix infrared cameras. In special areas, laser infrared surveillance is often used, or a video surveillance camera supplemented by a passive infrared thermal imager. Judging from the current development level of domestic video surveillance technology, active infrared surveillance technology has outstanding advantages; especially in the past two years, Shenzhen security companies have made dot-matrix infrared cameras an important development direction, and vigorously strengthened active infrared surveillance technologies to meet the diverse needs of users. .

Dotted white light cameras display color images at night. At this point, dot matrix infrared cameras are technically inferior to the former. There is also a bit weaker in the technical advantages of dot matrix white cameras. The main component of the dot matrix white light camera is the advantage of dot matrix white light: First, one light of its own is equivalent to 3 W of power, the monitoring effect at night is clearer, the image is colored, and it is easy to distinguish the monitoring objects; secondly, it is used in some special places. , underground parking, rural areas, and dark nights without lighting, there are lights to save the cost of installing street lights, some customers will think it is a good deal; Finally, the white light of the lattice to do a good job of cooling, with tin lights The aluminum plate is fully integrated, fully conductive, and has better heat dissipation. Its lifetime is much less than that of the dot matrix infrared.