Container Security via Forced Oscillation Detection
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Solution Overview
Problem
Current container logistics face inefficiencies in container security inspections, including high costs, need for additional personnel, and damage to containers, as existing methods are unable to effectively detect changes in contents or conditions without opening containers or using expensive measurement devices.
Innovation Solution
Integration of a system into container handling devices like cranes and telehandlers, using force and acceleration sensors to measure changes in elasticity through forced oscillation, producing a container-specific code for comparison, which indicates the presence of stowaways, content deviations, or changes in container conditions, without requiring container oscillation or mass changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If scanning of container contents is performed to detect stowaways or content changes, then measurement precision is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent replaces complex scanning measurement systems with a mechanical oscillation-based detection system. Instead of using expensive scanning devices to detect container contents, the system uses forced oscillation of the container and measures the oscillation characteristics (frequency, damping) to infer changes in contents or stowaways. This mechanical approach significantly reduces device complexity while maintaining detection capability.
Solution Approach 2:
The system detects changes in container contents by monitoring changes in oscillation parameters (frequency, damping ratio, period) rather than directly scanning the contents. When stowaways or content changes occur, they alter the mass distribution and elasticity of the container system, which manifests as measurable changes in oscillation parameters. This indirect parameter-based detection simplifies the measurement system.
2Measurement precision
If hand-held carbon dioxide meters are used for precision inspections, then measurement precision is improved, but productivity decreases due to manual operation requirements
Solution Approach 1:
The container security system performs self-inspection during the container handling process itself. The oscillation sensors are integrated into the container or handling equipment, allowing the container to be inspected automatically as it is moved, loaded, or stored. This eliminates the need for separate manual inspection steps with hand-held devices, maintaining precision while significantly improving productivity.
Solution Approach 2:
The patent merges the container security inspection function with the existing container handling operations. The oscillation measurement system is integrated into the container structure or handling equipment, so that inspection occurs simultaneously with movement or positioning operations. This consolidation eliminates separate inspection steps and manual operations, improving throughput while maintaining detection accuracy.
3Measurement precision
If containers are opened for inspection to detect stowaways or content changes, then measurement precision is improved, but loss of time increases due to additional processing steps
Solution Approach 1:
The oscillation-based inspection is performed on closed containers during normal handling operations, before the container would otherwise be opened or returned to service. This preliminary detection allows security checks to be completed as part of the standard handling workflow, eliminating the need for separate opening/inspection/closing steps and reducing turnaround time while maintaining detection reliability.
4Measurement precision
If additional inspection personnel are deployed to perform security checks, then measurement precision is improved, but loss of substance increases due to additional personnel resource requirements
Solution Approach 1:
The patent replaces human inspection personnel with an automated oscillation-based detection system. Sensors and processing electronics automatically measure container oscillation characteristics and detect anomalies indicating stowaways or content changes. This mechanical/automated system eliminates the need for additional human inspectors, reducing personnel resource consumption while maintaining or improving inspection quality through consistent, objective measurements.
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
This solution enables secure, cost-effective, and efficient container inspections during movement, reducing turnaround time and personnel requirements, while providing information security and the ability to detect anomalies without damaging containers.
Implementation Method 1
The forced oscillation of the container and the container handling device is produced programmatically by stimulating with an oscillation device attached to the container handling device
Implementation Method 2
the results to be presented are determined by comparing changes in the elasticity of the object (container and/or container contents) to be measured
Implementation Method 3
Above said elasticity and changes in the elasticity of the object to be measured are determined by measuring forced oscillation using acceleration- and force sensors installed in a container handling device
Data Source
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AI summary
Using the information-secure container security system described in this publication, it is possible, by means of signal handling, to examine, whether there is a stowaway or stowaways in a container. In addition to a person, the stowaway can also be an animal. Furthermore, using the invented system, in different container handling stages can be created a code based on oscillation that identifies and secures the container and the container contents. Using container handling devices coupled to the system and using the invented container security system, in the logistics chain, it is possible to secure and inspect containers to be moved in different container handling stages and the container contents as well as the condition of the container. Factors revealing in an inspection can be a deviation from the weight and/or contents declared in advance in the freight information or a change in the condition of the container contents between different container handling stages or a change in the container contents or a change in the condition of the container between different container handling stages. In addition to new container handling devices, a container security solution (system) following the invented method can also be retrofitted into all existing container handling devices. The described container handling system comprises force sensors (13) and acceleration sensors (14) to be attached to a container handling device, an electronics unit (17) of the system, an oscillation device (18) and the software, user interfaces, encrypted and wireless data transmission traffic, ID cards / readers as well as identifier number keyboards of the system.