Safety cabinet
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Solution Overview
Problem
The existing safety cabinets with high light reflectance SUS304 plates hinder effective monitoring of the work space due to direct or indirect illumination of network cameras, making it difficult to capture clear videos of the work area.
Innovation Solution
An imaging device is positioned on one side surface of the safety cabinet, outside the work space, with a connection opening on the opposite side, allowing for comprehensive monitoring without interference from illumination and maintaining a sterile environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the work space is covered with SUS304 plate to prevent corrosion, then corrosion resistance is improved, but light from illumination lamp directly or indirectly illuminates the network camera making it difficult to watch captured video
Solution Approach 1:
The imaging device is extracted from the work space and disposed on the back surface, separating it from the illumination source. This extraction eliminates the harmful light reflection effect while preserving the corrosion-resistant SUS304 plate covering in the work space.
Solution Approach 2:
The back surface of the work space serves as an intermediary location for placing the imaging device. This intermediary position allows the device to monitor the work space without being directly illuminated by the lamps, using the work space structure itself as a light barrier.
2Area of stationary object
If network camera is installed on back surface of work chamber, then monitoring coverage is improved, but light from illumination lamp directly or indirectly illuminates the network camera making it difficult to watch captured video
Solution Approach 1:
The imaging device is extracted from the problematic illuminated zone while remaining on the back surface, maintaining its monitoring coverage advantage while eliminating the light reflection issue.
3Difficulty of detecting and measuring
If imaging device is placed inside work space for monitoring, then monitoring capability is improved, but the imaging device requires sterilization to maintain sterile environment
Solution Approach 1:
The imaging device is extracted from the sterile work space and placed on the back surface, which is outside the sterile zone. This extraction maintains monitoring capability while eliminating the need for sterilization of the imaging device.
Solution Approach 2:
The imaging device captures visual information (a copy of the work space) without physically being inside the sterile environment, allowing monitoring without contamination risk.
4Difficulty of detecting and measuring
If imaging device is disposed inside work space, then monitoring is possible, but air flow for sterilization may be disturbed and power consumption increases
Solution Approach 1:
The imaging device is extracted from the work space to a position on the back surface, removing it from the air flow path. This maintains monitoring capability while preventing disruption of the sterile air flow and reducing power consumption.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables proper monitoring of the work space, reducing contamination risks, and preventing the need for sterilization of the imaging device, while ensuring stable air flow and reduced power consumption.
Implementation Method 1
air is delivered by air blowing means, and the air passes through a HEPA filter which is an air cleaner, so that dust contained in the air is removed
Implementation Method 2
The inside of a work chamber of the safety cabinet is covered with an SUS304 plate to prevent corrosion
Implementation Method 3
light from an illumination lamp provided in the safety cabinet
Data Source
AI summary
A safety cabinet includes a work space where work is performed; a front panel disposed in a front surface of the work space; and an air cleaner that cleans air to be supplied to the work space. An imaging device is disposed on one side surface side of side surfaces of the work space, and a connection opening is disposed on the other side surface side facing one side surface.