Infrared camera has been very popular in recent years, mainly due to low cost, easy installation, but in the course of use will always encounter some problems that we can not think of, the following is the infrared camera often encountered in the usual use of the problem ,For reference:
1 waterproof and cooling effect is not ideal
After a long period of use, there will be more or less soda (this phenomenon is mainly concentrated in the northern regions). The main reason for this phenomenon is that the sealing effect of the shell is not enough and the temperature difference is not taken into consideration when the machine is used. When the infrared lamp starts to work, a large amount of heat will be generated, and at the same time, the heat dissipation effect of the part housing will be insufficient, which will greatly reduce the service life of the camera.
2. The night vision effect is not ideal
The main manifestation of this phenomenon is the effect of the flashlight or the distance is not enough. In fact, this problem is mainly caused by the infrared light's angle and function. The infrared light used by our infrared cameras is also called the 850 infrared launch tube. The peak wavelength is 850, and the angle can be selected from 5-60 degrees. When the infrared launch tube angle The farther the illumination distance is, the more obvious is the effect of the flashlight. Conversely, the greater the angle, the less the effect of the flashlight, but the distance will be greatly reduced.
3. Insufficient color reproduction during the day
We do not know if we noticed that the color of the infrared camera would be more or less color cast in the daytime. The most direct reason is the problem of the camera filter. Generally, the infrared one camera uses a pair of infrared rays that can transmit a certain proportion of infrared rays. Peak filter, its advantage is low cost, but because natural light contains more infrared components, when it enters the CCD will interfere with color reproduction, such as the green plants become gray and so on (especially the sunny outdoor environment is particularly obvious) .
4. Repeated transition of critical points
This is because some cameras, whether equipped with IRCUT dual filter or bimodal filter, cannot work stably under certain complicated lighting conditions, and because most manufacturers use simple resistors such as photoresistors. Sensors and other methods to control the IRCUT bimodal filter's working state, the critical point of repeated changes will not be satisfactory. However, if the smart chip is used for control, its fuzzy logic capability can effectively control the working status of the IPCUT dual filter. In other words, many manufacturers are unwilling to invest in this.
5. Infrared light utilization and red storm issues
What is Redstorm? Redstorm is due to the fact that the emitted infrared light contains visible light components. Infrared lamps will inevitably cause these problems due to their principle.
6. Fogging and Frosting of Infrared Cameras
The formation of fog and frost is caused by the condensation of saturated steam in the air, which is condensed into frost and fog due to the strong and weak cold environment. In the work process of infrared cameras, especially outdoor cameras often cause fog or frost on the protective window glass due to seasonal changes, temperature difference between day and night, and rain and snow conditions. As a result, cameras cannot see objects and directly affect the monitoring results.
7. Infrared camera window glass cleaning
The camera works in a rainy or snowy environment or in a dusty environment. The window glass of the protective cover is prone to dirt, causing the camera to block the line of sight.
8. Infrared camera temperature
Due to the configuration of infrared lamps with a large amount of heat, after the infrared lamp is started, heat will be concentrated in the front of the infrared camera during the entire working period (in 12 hours), that is, the temperature in the front of the cavity is high, if it cannot be uniformly distributed Will affect the normal operation of cameras and other components.
1 waterproof and cooling effect is not ideal
After a long period of use, there will be more or less soda (this phenomenon is mainly concentrated in the northern regions). The main reason for this phenomenon is that the sealing effect of the shell is not enough and the temperature difference is not taken into consideration when the machine is used. When the infrared lamp starts to work, a large amount of heat will be generated, and at the same time, the heat dissipation effect of the part housing will be insufficient, which will greatly reduce the service life of the camera.
2. The night vision effect is not ideal
The main manifestation of this phenomenon is the effect of the flashlight or the distance is not enough. In fact, this problem is mainly caused by the infrared light's angle and function. The infrared light used by our infrared cameras is also called the 850 infrared launch tube. The peak wavelength is 850, and the angle can be selected from 5-60 degrees. When the infrared launch tube angle The farther the illumination distance is, the more obvious is the effect of the flashlight. Conversely, the greater the angle, the less the effect of the flashlight, but the distance will be greatly reduced.
3. Insufficient color reproduction during the day
We do not know if we noticed that the color of the infrared camera would be more or less color cast in the daytime. The most direct reason is the problem of the camera filter. Generally, the infrared one camera uses a pair of infrared rays that can transmit a certain proportion of infrared rays. Peak filter, its advantage is low cost, but because natural light contains more infrared components, when it enters the CCD will interfere with color reproduction, such as the green plants become gray and so on (especially the sunny outdoor environment is particularly obvious) .
4. Repeated transition of critical points
This is because some cameras, whether equipped with IRCUT dual filter or bimodal filter, cannot work stably under certain complicated lighting conditions, and because most manufacturers use simple resistors such as photoresistors. Sensors and other methods to control the IRCUT bimodal filter's working state, the critical point of repeated changes will not be satisfactory. However, if the smart chip is used for control, its fuzzy logic capability can effectively control the working status of the IPCUT dual filter. In other words, many manufacturers are unwilling to invest in this.
5. Infrared light utilization and red storm issues
What is Redstorm? Redstorm is due to the fact that the emitted infrared light contains visible light components. Infrared lamps will inevitably cause these problems due to their principle.
6. Fogging and Frosting of Infrared Cameras
The formation of fog and frost is caused by the condensation of saturated steam in the air, which is condensed into frost and fog due to the strong and weak cold environment. In the work process of infrared cameras, especially outdoor cameras often cause fog or frost on the protective window glass due to seasonal changes, temperature difference between day and night, and rain and snow conditions. As a result, cameras cannot see objects and directly affect the monitoring results.
7. Infrared camera window glass cleaning
The camera works in a rainy or snowy environment or in a dusty environment. The window glass of the protective cover is prone to dirt, causing the camera to block the line of sight.
8. Infrared camera temperature
Due to the configuration of infrared lamps with a large amount of heat, after the infrared lamp is started, heat will be concentrated in the front of the infrared camera during the entire working period (in 12 hours), that is, the temperature in the front of the cavity is high, if it cannot be uniformly distributed Will affect the normal operation of cameras and other components.
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