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Protective covers are generally divided into two categories.  

 

 

One type is indoor protective covers, which have a simple structure and are inexpensive. Its main function

 

is to prevent the camera from gathering dust and has a certain safety protection effect, such as anti-theft and

 

anti-vandalism.

 

Another type is the outdoor protective cover, which is generally an all-weather protective cover. That is,

 

regardless of adverse conditions such as wind, rain, snow, high temperature or low temperature, the camera

 

installed inside the protective cover can work normally. Therefore, this kind of protective cover has functions

 

such as cooling, heating, rain protection and snow protection. Meanwhile, to ensure that the camera can still

 

capture images normally in rainy or snowy weather, controllable wipers are usually installed in front of the

 

all-weather protective cover's glass window.At present, the better all-weather protective covers are those that

 

use semiconductor devices for heating and cooling.This protective cover is equipped with semiconductor

 

components, which can both automatically heat up and cool down,and has relatively low power consumption.

 

 

One type is indoor protective cover.

 

 

The sealing performance of the outdoor protective cover must be good to ensure that rainwater cannot

 

enter the interior of the protective cover and erode the camera. Some outdoor protective covers are also

 

equipped with exhaust fans, heating plates and wipers, which can better protect the equipment. When the

 

weather is too hot, the exhaust fan works automatically. The heating plate works automatically when it is too

 

cold. When there is rainwater on the protective cover glass, the wipers can be activated through the control

 

system. When choosing a camera protective cover, the first step is to accommodate the camera and lens in use

 

and leave some extra space. Secondly, select a suitable type of protective cover based on the usage environment.

 

On this basis, accumulate the weight of the entire front end of the camera, including the protective cover and the

 

pan-tilt, and choose a bracket with the corresponding load-bearing value. It is also necessary to consider the

 

overall structure. The fewer the installation holes, the more conducive it is to waterproofing. Then, check whether

 

the internal circuits are easy to connect. Finally, the appearance, weight, installation base,etc.should also be

 

taken into account.

 

In the protective covers, apart from the spherical protective covers used in integrated camera systems,there

 

are also cylindrical, rectangular and other different shapes. The application scenarios are mainly divided into

 

indoor and outdoor types. The indoor camera protective cover is mainly aimed at decoration, concealment and

 

dust prevention, while the outdoor type, as it is used all day long, should be able to adapt to different usage

 

environments.The main materials of protective covers include aluminium, alloys, extruded materials, stainless

 

steel, etc.