Distributed Hazard Detection for Transport Refrigeration Compartments
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Solution Overview
Problem
Current transport refrigeration systems lack effective hazard detection mechanisms, particularly for flammable gases, which can pose risks within refrigerated containers during the transportation of perishable goods.
Innovation Solution
A distributed hazard detection system is implemented, comprising a primary controller, an auxiliary controller, and sensors distributed across compartments of the refrigerated container, which communicate power and data to detect hazards, including refrigerant leaks, and trigger safety responses such as alerting the primary controller and engaging fans to draw out hazardous gases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hazard detection sensors are distributed across multiple compartments, then detection coverage and reliability are improved, but system complexity and cost increase
Solution Approach 1:
The hazard detection system is segmented into multiple independent sensor units distributed across different compartments. Each sensor independently monitors its local environment for refrigerant leaks, and the auxiliary controller aggregates data from all sensors to determine overall hazard conditions. This segmentation improves detection reliability by ensuring comprehensive coverage while managing system complexity through modular, distributed architecture.
2Reliability
If multiple sensors are deployed across compartments, then hazard detection capability is improved, but power consumption and communication load increase
Solution Approach 1:
The power management and data processing functions are extracted from individual sensor units and centralized in the auxiliary controller. Each sensor only performs local hazard detection and transmits minimal data to the auxiliary controller, which then performs comprehensive analysis and communicates with the primary controller. This extraction reduces power consumption at the sensor level while maintaining overall system capability.
3Object-affected harmful factors
If hazard detection and response systems are added, then safety is improved, but device complexity increases
Solution Approach 1:
The hazard detection system is merged with the existing transport refrigeration system architecture. The auxiliary controller integrates sensor data from all compartments and communicates with the primary controller, which already manages refrigeration operations. Safety responses such as activating fans or alerting operators are coordinated through this merged system, improving safety while avoiding the complexity of a completely separate system.
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
The system enables timely detection and response to hazards, ensuring the safety of the refrigerated environment and the goods being transported by alerting operators and engaging safety procedures, thereby preventing potential risks and maintaining optimal refrigeration conditions.
Implementation Method 1
the plurality of sensors detect refrigerant
Implementation Method 2
configured to draw air toward the plurality of sensors
Implementation Method 3
the plurality of fans respectively distributed in the plurality of compartments
Data Source
AI summary
A transport refrigeration system, comprising a primary controller; a refrigerated container with a plurality of compartments; a hazard detection system, comprising: an auxiliary controller; and a plurality of sensors respectively distributed in a plurality of compartments of a refrigerated container of the transport refrigeration system, each of the plurality of sensors operationally connected to and controlled by the auxiliary controller.