Air Sampling Device for Container Inspection
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Solution Overview
Problem
The examination of shipping containers for dangerous materials and illegal substances is costly and inefficient, as current methods require opening containers for canine inspection, which is time-consuming and labor-intensive.
Innovation Solution
A portable air sampling device that draws a small air sample from within a container through an existing vent and directs it to a dog outside for sniffing, using a lightweight conduit and fan unit operated by the handler, allowing the dog to detect substances without opening the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a container is opened for canine inspection, then the dog can detect dangerous materials or illegal substances, but the inspection becomes time-consuming and labor-intensive
Solution Approach 1:
The invention extracts only the air sample from the container through the vent, rather than requiring the entire container to be opened. The fan unit draws air through the vent and delivers it to the dog via the conduit, allowing the dog to detect substances through the outlet without physical access to the container interior.
Solution Approach 2:
The device introduces an intermediary system consisting of the fan unit, conduit, and outlet member that mediates between the container's interior air and the dog's nose. This intermediary apparatus allows the dog to smell container contents remotely through the outlet, eliminating the need to open the container.
2Reliability
If a container is opened for canine inspection, then the dog can detect dangerous materials or illegal substances, but the inspection becomes labor-intensive and expensive
Solution Approach 1:
The invention extracts only the necessary air sample through the existing vent, avoiding the need to open the container. This extraction approach eliminates labor-intensive opening procedures and reduces inspection costs while maintaining detection capability.
Solution Approach 2:
The device utilizes the container's existing vent structure to draw air samples, making the system self-sufficient regarding air intake. The fan unit automatically draws air through the vent and delivers it to the dog, reducing the need for additional equipment or personnel.
3Loss of time
If air is drawn through an existing vent, then the container remains closed and inspection is faster, but air mixing with outside air may occur
Solution Approach 1:
The inlet member is designed with a seal member that creates a localized sealed environment around the vent opening. This local sealing ensures that air drawn through the vent is exclusively from the container interior, preventing mixing with outside air and maintaining sample purity.
Solution Approach 2:
The seal member on the inlet member takes preliminary action to prevent outside air from mixing with container air before the sampling process begins. By sealing the vent opening from the outside, the device ensures that only container interior air is drawn through the vent and delivered to the dog.
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 rapid and cost-effective detection of dangerous materials and illegal substances by allowing the dog to analyze a sample of container air without opening the container, reducing the time and expense associated with traditional inspection methods.
Implementation Method 1
the fan in the fan unit is operated to draw air from within the container and pass it through the vent, through the inlet member, and through the conduit to the fan unit
Data Source
AI summary
A portable device for use in detecting dangerous materials and illegal substances in shipping containers with the aid of a trained dog. The device is used by a dog handler and constructed to be able to withdraw air from within a shipping container, through a high air vent in it's sidewall, and present the withdrawn air to the dog to smell. The dog is beside the handler on the ground beside the container when smelling the withdrawn air.