Infrared waterproof camera solution to prevent fog from blocking the lens

Speaking of stadium monitoring, there are really many benefits. Not only can hidden dangers be discovered in time, potential security threats can be blocked, but also personnel costs and energy can be saved. Therefore, more and more newly built sports venues now regard video surveillance as an important part of the site construction. As a result, a series of problems have also been brought about. No, a friend recently asked to install surveillance equipment in the swimming pool. Due to the relatively wet area, there will often be fog on the surveillance cameras, which will affect the quality of surveillance. Shenzhen Peng Anshi Technology Co., Ltd. has experienced many years of experience such as fog, water vapor and other problems that can be solved by the following ways.

In the first case, mist appears inside the machine

The formation of fog and frost is caused by the condensation of saturated water vapor in the air, which is condensed into frost and fog due to the strength and weakness of the cold environment. During the work of infrared cameras, especially indoor cameras, fog or frost often forms on the window glass of the protective cover due to fog or water vapor in the venue. As a result, the camera cannot see clearly and directly affects the monitoring effect.

The solutions to this problem are also different from family to family. Increase the defrost circuit, open the vent hole, fill with nitrogen, add a fan, put a desiccant, etc. The method is different, and the effect is of course different, some can solve the problem, and some still can't solve the problem. However, from the most basic point of view, it is necessary to strictly control the cleaning of materials and try to prevent the presence of volatiles. For example, PCB board must not have residual flux, and the shading rubber sleeve is made of high-quality silicone material.

In the second case, frost and fog appear outside the machine

The camera works in an environment with high humidity, and the window glass of the protective cover is prone to dirt, which causes the camera's sight to be blocked.

The solution:

1. Add a wiper to the protective cover, and clean the glass by controlling the wiper.

2. Use invisible wiper window glass. Compared with ordinary window glass, invisible wiper window glass has the function of repelling water and dust. Finally, in the case of high humidity, some requirements for the sealing of the casing. If the infrared waterproof camera is applied in the north, there will be a large temperature difference between the inside and outside of the body, and the front lens will appear fogging, so the machine must have a good The tightness of the protective cover must also have good rainproof performance.

At this stage, the mainland technology has certain technical problems in terms of hermeticity. For example, the design of the casing, where the joints and screw interfaces are mostly leaky.

How to make the sealing better? The basic solution is this:

1. Add waterproof rubber sleeve, add water pad at the interface, play a waterproof role, the effect is more ideal.

2. Apply waterproof glue to the screw joints of the wiring to enhance the waterproofness.

3. The infrared waterproof camera adopts aluminum alloy shell to improve the accuracy of the interface, and the high-quality silicone material is used for bonding. The effect is also ideal.