Cargo Condition Monitoring With Embedded Sensor Interfaces
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Solution Overview
Problem
Current environmental parameter sensor interfaces in climate-controlled containers require long cables, leading to increased setup time, susceptibility to damage, and costly replacements, while failing to efficiently monitor critical parameters like temperature, humidity, and gas levels for perishable goods during transportation.
Innovation Solution
A wired sensor interface system with an embedded portion integrated into the shipping container and a temporary portion associated with the sensors, featuring retractable plug terminations disposed on the floor, minimizing cable length and exposure, and facilitating efficient communication between sensors and a controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If long cables are used to connect sensors to the central controller, then the sensors can be positioned anywhere in the container, but the setup time increases and the cables become susceptible to damage
Solution Approach 1:
The cable system is segmented into fixed cable channels integrated into the container structure and removable cable assemblies that can be quickly connected and disconnected. This allows sensors to be repositioned by simply plugging in different cable assemblies rather than routing long cables each time, reducing setup time while maintaining positioning flexibility.
Solution Approach 2:
Cable channels and connection points are pre-integrated into the container structure during manufacturing. Cable routing paths are predetermined and prepared in advance, so when sensors need to be installed, operators only need to connect cables to pre-positioned terminals rather than routing cables through the entire container, significantly reducing setup time.
2Adaptability or versatility
If long cables are used to connect sensors to the central controller, then the sensors can be positioned anywhere in the container, but the cables become susceptible to damage and replacement costs increase
Solution Approach 1:
The cable system is divided into protected fixed portions integrated into the container structure and replaceable connector portions. The fixed portions are shielded within container walls, protecting them from damage. Only the small connector portions exposed at cable access points are vulnerable, and these can be easily replaced if damaged, reducing overall system vulnerability and replacement costs.
Solution Approach 2:
Cable channels are integrated into the container structure with protective routing that shields cables from physical damage, moisture, and environmental factors. Cable access points are positioned to minimize cable exposure to potential damage sources. This protective infrastructure is built in advance, cushioning the cable system against damage before it can occur.
3Measurement precision
If traditional sensor interfaces with long cables are used, then comprehensive environmental monitoring can be achieved, but the system complexity and setup requirements increase
Solution Approach 1:
The cable management system is merged with the container structure itself. Cable channels, conduits, and routing paths are integrated into the container walls and floor, eliminating the need for separate cable management components. This reduces device complexity while maintaining the ability to monitor multiple environmental parameters through sensors positioned at various locations.
Solution Approach 2:
The integrated cable channel system serves multiple functions: it provides cable routing, structural support, and protection for multiple sensor cables simultaneously. The same infrastructure supports temperature, humidity, and gas sensors throughout the container, reducing overall system complexity while enabling comprehensive environmental monitoring.
Data Source
Figure 1
AI summary
A method and system for monitoring cargo conditions, includes at least one environmental sensor (50) to monitor at least one environmental parameter associated with the cargo (30), a controller (60) to log a plurality of readings from each of the at least one environmental sensors (50), and a sensor interface (51) to facilitate communication between the at least one environmental sensor (50) and the controller (60).