Container Climate Control Diagnostics During In-Service Transport
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Solution Overview
Problem
Current pre-trip inspection methods for intermodal freight containers with climate control systems are time-consuming and inefficient, as they rely on traditional scheduled or demand-based defrosting cycles and do not effectively identify containers that need maintenance or repair until they reach a destination, potentially leading to cargo deterioration and increased costs.
Innovation Solution
In-service diagnostic testing automatically evaluates the climate control system's functionality, including power consumption, voltage, and component performance, and wirelessly transmits results to a central facility for real-time assessment and maintenance planning, allowing for proactive identification and maintenance of faulty containers before they reach their destination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional scheduled or demand-based defrosting cycles are used, then the climate control system operates with simple control logic, but the inspection process becomes time-consuming and inefficient
Solution Approach 1:
The system performs diagnostic testing of the climate control system in advance during in-service operation, before the container reaches its destination. This preliminary assessment includes monitoring power consumption, voltage, and component performance to identify potential issues early, eliminating the need for time-consuming inspections at the destination.
Solution Approach 2:
The system continuously monitors climate control system parameters such as power consumption, voltage, and component performance during operation. This feedback mechanism enables real-time assessment of system health and automatic identification of containers requiring maintenance, streamlining the inspection process.
2Reliability
If traditional pre-trip inspection methods are used, then the inspection process is simple to implement, but containers may reach destination with undetected faults leading to cargo deterioration
Solution Approach 1:
The climate control system performs self-diagnosis during normal operation by monitoring its own parameters such as power consumption, voltage, and component performance. This self-service capability automatically identifies faults and generates diagnostic reports without requiring external inspection equipment or personnel, ensuring reliable quality assurance while maintaining simple implementation.
3Reliability
If in-service diagnostic testing is implemented, then maintenance planning is optimized and cargo deterioration risk is reduced, but the system requires automated testing and wireless transmission capabilities
Solution Approach 1:
The climate control system performs multiple functions: it maintains the required temperature and humidity conditions for cargo while simultaneously conducting diagnostic testing of its own components. The same sensors and control mechanisms used for climate regulation are also utilized for monitoring power consumption, voltage, and component performance, eliminating the need for separate diagnostic equipment.
Data Source
AI summary
In-service diagnostic testing of containers with a climate control system used in intermodal freight transport includes automatically testing the functioning of the climate control system at a possibly pre-scheduled time which may depend on the period of time since the latest pre-trip inspection. According to the invention in-service diagnostic testing is performed with cargo in the container during transportation from origin to destination at a suitable time before expected arrival to the destination so that the approval resulting from the in-service diagnostic testing is fresh and up-to-date. Results of the in-service diagnostic testing are transmitted wirelessly to a receiver at a central facility where managing and allocating a large number of containers to individual transport tasks is performed, and containers which have not passed the in-service diagnostic testing can be taken out of service for maintenance and repair.