An image acquisition device and a security monitoring system

Abstract

The invention relates to the field of the security and protection monitoring equipment, and discloses an image acquisition device and a security and protection monitoring system. The image acquisition device comprises a shell and a defogging device; the defogging device comprises the followings: an air duct bracket and the inner wall of the shell are cooperated to form an air duct with an air inlet and an air outlet; a fan is arranged at the air outlet of the air duct; a first radiator is located at the air outlet of the fan and connected with a hot end of a semiconductor refrigerator through a heat pipe; a second radiator is placed at the air inlet in the air duct and arranged at a cold end side of the semiconductor refrigerator; a dry module is arranged at a water outlet of the second radiator. In above-mentioned image acquisition device, the relative humidity of the air in the shell can be reduced through the heat making by using a hot end of the semiconductor refrigerator, and the water vapor in the air can be condensed or solidified by using the cold end in the semiconductor refrigerator; the water drop and the ice crystal are absorbed through the drying module, the total moisture content of the air is reduced, and the defogging effect is strong.

Description

technical field [0001] The invention relates to the field of security monitoring equipment, in particular to an image acquisition device and a security monitoring system. Background technique [0002] Security monitoring products have a wide range of applications, and image acquisition devices are the core components of security monitoring systems. Image acquisition equipment in special scenarios such as the open air need to have a high protection level design and be able to work normally in harsh environments. For example, the vehicle chassis safety inspection system applied in the field of intelligent detection. The vehicle chassis safety inspection system is an information management system that automatically collects, displays, compares, and warns images of the vehicle chassis. It should be noted that factors such as rain and large temperature difference between day and night can easily cause fogging on the glass window surface of the image acquisition device in the abo...

AI Technical Summary

Problems solved by technology

This defogging principle mainly reduces the relative humidity of the air by heating the air and enhances the moisture absorption capacity of the air. However, the power of the heater is limited by the power load of the equipment, the air temperature rise is limited, and the moisture absorption capacity is not significantly improved, so that the defogging capacity is not significant.

Images