Transport Refrigeration Wireless Setup With LED Diagnostics
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Solution Overview
Problem
Existing transport refrigeration systems face challenges in reliable setup and troubleshooting due to the complexity of wireless communication systems, often requiring specialized expertise and tools, which may not be readily available at reefer dealerships or for users.
Innovation Solution
The implementation of a wireless communication system using color-coded and blinking LEDs on wireless end nodes and a network coordinator, along with pushbuttons, to emulate diagnostic procedures similar to wired systems, allowing for efficient setup and troubleshooting without the need for special tools, by providing diagnostic information through LED indicators and data logging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless communication system is implemented in a transport refrigeration system, then the system modernization and communication capability are improved, but the setup and troubleshooting complexity increases due to the need for specialized expertise and tools
Solution Approach 1:
The patent applies the copying principle by replicating the familiar wired system diagnostic procedures and interface elements in the wireless system. The network coordinator and wireless end nodes use identical LED indicators, pushbutton configurations, and diagnostic workflows as wired systems, allowing technicians to transfer their existing knowledge directly to wireless troubleshooting without needing to learn entirely new procedures
Solution Approach 2:
The patent implements self-service through automated diagnostic capabilities where the system itself provides diagnostic information through LED indicators and data logging. The network coordinator automatically detects communication status, device pairing state, and system errors, presenting this information in the same format as wired systems would, enabling users to self-diagnose issues without requiring specialized wireless communication expertise
2Measurement precision
If specialized diagnostic tools and expertise are required for wireless system setup, then measurement precision and diagnostic accuracy are improved, but the ease of operation deteriorates due to limited availability of specialized tools at reefer dealerships
Solution Approach 1:
The patent applies universality by designing the network coordinator to perform multiple functions using the same interface elements. The LED indicators and pushbuttons serve both as user interface elements for setup and as diagnostic indicators for troubleshooting. The system can operate in wired mode, wireless mode, or both simultaneously, with a unified diagnostic approach that works across all operational modes, eliminating the need for mode-specific tools or procedures
Solution Approach 2:
The patent uses color changes in LED indicators to convey diagnostic information in a universally understood format. Different LED colors and blinking patterns indicate various system states (power on, device detected, communication established, errors), providing immediate visual feedback that is intuitive and requires no specialized interpretation, making the system as easy to operate as traditional wired systems
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 simplifies the setup and diagnosis of wireless communication systems in transport refrigeration, enabling users to commission and troubleshoot wireless end nodes efficiently, reducing the need for specialized expertise and tools, and providing clear diagnostic information through visual indicators and data logging.
Implementation Method 1
color coded and blinking light emitting diodes (LEDs) on a wireless end node and a network coordinator
Data Source
AI summary
The embodiments described herein are directed to setup of a transport refrigeration system and providing transport refrigeration system diagnostic information to a user. In particular, interfaces on a wireless end node and a network coordinator of a wireless communication system are configured to provide setup and diagnostic functionality of the wireless communication system to a user with limited expertise in wireless communication systems.