The Central Meteorological Observatory issued the cold wave blue warning on December 6 at 06:00: December 6th, 08:00 to 8:00, 8:00, the southeast of Shaanxi, north-central and eastern North China, the eastern northeast, Huanghuai, Jianghuai, Jianghan, Jiangnan, and South China. Guizhou, Yunnan, and Chongqing will experience 6–10°C cooling, with temperatures ranging from 12 to 16°C in parts of southeastern China, Huanghuai, Jianghuai, and northeastern Jiangbei. Most of the area north of the Huaihe River has 5 to 6 northerly winds, Jianghuai and Jiangnan have 4 to 5 northerly winds.
The rumors of the "Millennium Arctic" that were once very haunting caused everyone's suspicion after the Central Meteorological Observatory issued a blue warning for the cold wave. For outdoor security products used in the construction of “Safe Cityâ€, especially how to operate the camera in cold weather conditions? Colleagues all know that TV cameras are sophisticated devices that can cause damage if used improperly. Especially in the case of severe environmental conditions, such as rainy days, foggy days, snowy days and other places with high humidity; places with large amounts of sand, dust, or chemically odorous atmospheres; excessively high or low ambient temperature; Shooting scenes, etc., the use of the camera should be given enough attention, otherwise it will appear: or the picture quality is poor; or the camera can not operate properly or even completely damaged. Here, the precautions and solutions for the use of television cameras in harsh environments are described for your communication.
The TV cameras currently used are basically camera and recorder cameras. It can be divided into three parts, namely: electrical parts, lens parts, and mechanical parts. Electrical parts are the most sensitive parts. If they are used or maintained improperly, they may cause damage to electronic components. If the lens is dirty with fog and dust, it will affect the quality and effect of the shooting screen. The mechanical parts will be adversely affected. After that, the movement of the machine may not be in place, and the operation stops. Therefore, the harsh environment mainly affects the use of these three parts of the television camera.
First, rainy days, foggy days, snow days and other places with high humidity in this environment to shoot, the lens can easily cause spots and fog, affect the picture's effect and quality. Electrical and mechanical parts inside the equipment, if eroded by rain or moist air, can also cause malfunction and damage. The solution: There are conditions to use a professional rain cover, this cover can isolate rain, snow, fog, damp air damage to the equipment. There are no conditions, you can use parasols, which cover a large area, can block the rain and snow attacks. For fog and humid air, we can use dense materials (large plastic bags can also be) tightly wrapped the body. The lens should always pay attention to its cleanness during the shooting process, and find the dirty spots in time to clean it with deerskin, which will ensure the normal operation of the machine and the picture quality.
2. Sites where wind, sand, dust, or chemically corrosive air, wind, sand, and dust are mainly infringed on the inside of the lens and the camera. The lens cover is opened during shooting. Check the marks immediately after the shooting and clean the cover. The best choice for the body is a rain cover to prevent the sand and dust particles from entering the normal operation of the device. Chemical odor has a very serious impact on the body. It can erode electronic components, lose their inherent electrical characteristics, and damage is very serious. The consequences are difficult to predict. Rain covers or other high density materials can also be used to wrap the body. Pay attention to the working hours should not be too long, the work must be left quickly.
Third, the shooting environment temperature is too high or too low The temperature is too high or too low on the camera's electronic component performance performance is very large, including the random battery will also have an impact.
1. Shooting ambient temperature is too high (above 30°C)
The electrical components of the fuselage generate heat during operation, and heat dissipation is required to maintain a stable working condition. If the ambient temperature is too high, not only does it fail to dissipate heat, but it intensifies the heating of the electronic components. This will cause the components to lose their normal operating characteristics and cause linear distortion, which will affect the picture quality.
Solution: The condition can be selected to blow with an electric fan to promote heat dissipation. In the wild, you can choose ventilation and cooling in the cool place. You can also choose to stop working for a period of time for this kind of “work and work†method. The effect is also very good.
2. Shooting ambient temperature is too low (1-25% or less)
In general, it is conditional to ensure that the electronic components inside the camera work properly. Excessively high or low temperatures will affect the use of the camera. If the ambient temperature is too low, the electronic device can not reach the warm-up value, it will also affect the machine's operating characteristics. The same is true for batteries. Since the ambient temperature is too low, the internal chemical reactions and the energy release rate of the battery will also be slowed down, and the proper energy will not be fully utilized, reducing the normal working hours. Although it will not cause damage to the equipment, it will affect work efficiency.
The solution: Put the "cotton jacket" insulation on the body. Unused batteries should be placed on a high temperature site or cold-proofed so that energy can be easily released.
Fourth, change the temperature of the shooting scene 1. From a scene with a higher temperature to a scene with a lower temperature (such as the winter in the north from indoor to outdoor), when the temperature is not too low, the problem is not serious. If the temperature is too low, add a cold hood.
2. From a scene with a lower temperature to a scene with a higher temperature (such as entering the plastic greenhouse from the outside in the winter), the lens immediately covers the fog, and the scene cannot be clearly reproduced. The electrical part is covered with fog, which can easily cause a short circuit. The mechanical part may lose control.
the solution:
1 Before entering a scene with high temperature, the camera is warmed up and warmed up. Then when the temperature reaches a certain value, the camera is wrapped and moved to a site with higher temperature. At this time, the lens cover must not be opened.
2 also can choose the method of excessive temperature treatment, that is to move to the site with relatively high temperature first, make the machine get a certain heat to adapt, after a period of time, move to the place with high temperature again, see fog of the fuselage is not all, turn on the power again lens cap.
3 In many cases, due to the tight shooting time, precious pictures will flash if they do not shoot, so they must be taken directly to the shooting site with higher temperature. This will inevitably cause the lens to cover the fog, and the electrical parts will be covered with dewdrops. At this time, the work is extremely damaging to the machine and even permanently damaged. Solution: If it is time for shooting is very tight, the collection of the lens is not much, may wish to take it immediately after boot shooting, take full advantage of the limited time of ten seconds, if the lens is not enough, and then immediately shut down, until the fog dispersed, immediately go in Start shooting. If the shooting time is sufficient, the workload is great, and there are news lights on hand, you can bake it with a lamp, and it is advisable to keep it at a distance of one-meter-five or so. If a hair dryer is the best, it can be warmed and dried, and it is very practical.
The shooting environment is constantly changing. The camera is the reproduction of the cameraman's soul. His imagination and creativity are concentrated here. Without high-quality, superior equipment, it will not create high-quality images. We must cherish and maintain the camera equipment.
The rumors of the "Millennium Arctic" that were once very haunting caused everyone's suspicion after the Central Meteorological Observatory issued a blue warning for the cold wave. For outdoor security products used in the construction of “Safe Cityâ€, especially how to operate the camera in cold weather conditions? Colleagues all know that TV cameras are sophisticated devices that can cause damage if used improperly. Especially in the case of severe environmental conditions, such as rainy days, foggy days, snowy days and other places with high humidity; places with large amounts of sand, dust, or chemically odorous atmospheres; excessively high or low ambient temperature; Shooting scenes, etc., the use of the camera should be given enough attention, otherwise it will appear: or the picture quality is poor; or the camera can not operate properly or even completely damaged. Here, the precautions and solutions for the use of television cameras in harsh environments are described for your communication.
The TV cameras currently used are basically camera and recorder cameras. It can be divided into three parts, namely: electrical parts, lens parts, and mechanical parts. Electrical parts are the most sensitive parts. If they are used or maintained improperly, they may cause damage to electronic components. If the lens is dirty with fog and dust, it will affect the quality and effect of the shooting screen. The mechanical parts will be adversely affected. After that, the movement of the machine may not be in place, and the operation stops. Therefore, the harsh environment mainly affects the use of these three parts of the television camera.
First, rainy days, foggy days, snow days and other places with high humidity in this environment to shoot, the lens can easily cause spots and fog, affect the picture's effect and quality. Electrical and mechanical parts inside the equipment, if eroded by rain or moist air, can also cause malfunction and damage. The solution: There are conditions to use a professional rain cover, this cover can isolate rain, snow, fog, damp air damage to the equipment. There are no conditions, you can use parasols, which cover a large area, can block the rain and snow attacks. For fog and humid air, we can use dense materials (large plastic bags can also be) tightly wrapped the body. The lens should always pay attention to its cleanness during the shooting process, and find the dirty spots in time to clean it with deerskin, which will ensure the normal operation of the machine and the picture quality.
2. Sites where wind, sand, dust, or chemically corrosive air, wind, sand, and dust are mainly infringed on the inside of the lens and the camera. The lens cover is opened during shooting. Check the marks immediately after the shooting and clean the cover. The best choice for the body is a rain cover to prevent the sand and dust particles from entering the normal operation of the device. Chemical odor has a very serious impact on the body. It can erode electronic components, lose their inherent electrical characteristics, and damage is very serious. The consequences are difficult to predict. Rain covers or other high density materials can also be used to wrap the body. Pay attention to the working hours should not be too long, the work must be left quickly.
Third, the shooting environment temperature is too high or too low The temperature is too high or too low on the camera's electronic component performance performance is very large, including the random battery will also have an impact.
1. Shooting ambient temperature is too high (above 30°C)
The electrical components of the fuselage generate heat during operation, and heat dissipation is required to maintain a stable working condition. If the ambient temperature is too high, not only does it fail to dissipate heat, but it intensifies the heating of the electronic components. This will cause the components to lose their normal operating characteristics and cause linear distortion, which will affect the picture quality.
Solution: The condition can be selected to blow with an electric fan to promote heat dissipation. In the wild, you can choose ventilation and cooling in the cool place. You can also choose to stop working for a period of time for this kind of “work and work†method. The effect is also very good.
2. Shooting ambient temperature is too low (1-25% or less)
In general, it is conditional to ensure that the electronic components inside the camera work properly. Excessively high or low temperatures will affect the use of the camera. If the ambient temperature is too low, the electronic device can not reach the warm-up value, it will also affect the machine's operating characteristics. The same is true for batteries. Since the ambient temperature is too low, the internal chemical reactions and the energy release rate of the battery will also be slowed down, and the proper energy will not be fully utilized, reducing the normal working hours. Although it will not cause damage to the equipment, it will affect work efficiency.
The solution: Put the "cotton jacket" insulation on the body. Unused batteries should be placed on a high temperature site or cold-proofed so that energy can be easily released.
Fourth, change the temperature of the shooting scene 1. From a scene with a higher temperature to a scene with a lower temperature (such as the winter in the north from indoor to outdoor), when the temperature is not too low, the problem is not serious. If the temperature is too low, add a cold hood.
2. From a scene with a lower temperature to a scene with a higher temperature (such as entering the plastic greenhouse from the outside in the winter), the lens immediately covers the fog, and the scene cannot be clearly reproduced. The electrical part is covered with fog, which can easily cause a short circuit. The mechanical part may lose control.
the solution:
1 Before entering a scene with high temperature, the camera is warmed up and warmed up. Then when the temperature reaches a certain value, the camera is wrapped and moved to a site with higher temperature. At this time, the lens cover must not be opened.
2 also can choose the method of excessive temperature treatment, that is to move to the site with relatively high temperature first, make the machine get a certain heat to adapt, after a period of time, move to the place with high temperature again, see fog of the fuselage is not all, turn on the power again lens cap.
3 In many cases, due to the tight shooting time, precious pictures will flash if they do not shoot, so they must be taken directly to the shooting site with higher temperature. This will inevitably cause the lens to cover the fog, and the electrical parts will be covered with dewdrops. At this time, the work is extremely damaging to the machine and even permanently damaged. Solution: If it is time for shooting is very tight, the collection of the lens is not much, may wish to take it immediately after boot shooting, take full advantage of the limited time of ten seconds, if the lens is not enough, and then immediately shut down, until the fog dispersed, immediately go in Start shooting. If the shooting time is sufficient, the workload is great, and there are news lights on hand, you can bake it with a lamp, and it is advisable to keep it at a distance of one-meter-five or so. If a hair dryer is the best, it can be warmed and dried, and it is very practical.
The shooting environment is constantly changing. The camera is the reproduction of the cameraman's soul. His imagination and creativity are concentrated here. Without high-quality, superior equipment, it will not create high-quality images. We must cherish and maintain the camera equipment.