Monitoring Camera Repellent Sheet for Spider Web Prevention
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Solution Overview
Problem
Monitoring cameras outdoors face image quality deterioration and false alarms due to spider webs, which can be triggered by wind, leading to unnecessary maintenance and security actions.
Innovation Solution
A monitoring camera design featuring a housing with a cylindrical lens covered by a front glass, an eave member with a protruding flange, and a repellent member containing a pest-repelling drug, such as a sheet or tape, to prevent spider webs from forming in front of the lens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotary plate is used to remove obstacles automatically, then maintenance effort is reduced, but false alarms occur when the rotary plate moves spider webs
Solution Approach 1:
The patent applies preliminary action by positioning the repellent member at the tip end flange portion before spiders can build webs. The repellent drug is pre-applied to the protruding flange, creating a protective barrier that prevents web formation at the lens surface, thereby eliminating the need for rotary plate movement and avoiding false alarms while maintaining automatic protection
2Manufacturing precision
If manual removal of spider webs is performed, then image quality is maintained, but safety risks and time consumption increase
Solution Approach 1:
The patent implements self-service by enabling the monitoring camera to protect itself against spider webs through the repellent member. The repellent drug on the flange portion actively deters spiders, allowing the system to maintain image quality automatically without requiring external manual intervention for web removal
Solution Approach 2:
The repellent member is pre-installed at the tip end flange portion before spider web formation occurs. This preliminary protective measure prevents webs from reaching the lens, maintaining image quality continuously without requiring subsequent manual removal actions
3Area of stationary object
If the monitoring camera is installed at high positions, then coverage area increases, but manual maintenance becomes more dangerous
Solution Approach 1:
The monitoring camera performs self-protection through the repellent member installed at its tip end flange portion. This eliminates the need for human operators to climb high installation positions for web removal, transferring the protective function to the device itself and removing the safety hazard associated with high-altitude maintenance work
Data Source
AI summary
A monitoring camera includes a housing having a tip end cylindrical portion in which a lens is disposed, the tip end cylindrical portion being covered with a front glass, an eave member that is provided on an upper surface of the housing and that has a tip end flange portion protruding forward from the front glass, and a repellent member that is provided at the tip end flange portion and contains a drug for repelling a pest such as a spider.