Virtual Sensors for CANbus Proprietary Data Access
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Solution Overview
Problem
Existing vehicle bus systems, particularly those using CANbus and SAE J1939 standards, are limited in monitoring vehicle operation and performance criteria due to proprietary parameters that are undisclosed and not publicly accessible, making it difficult for asset managers to track and analyze vehicle data across integrated wireless equipment management systems.
Innovation Solution
The method and system for monitoring CANbus information involve configuring and reconfiguring original parameters into virtual sensors, allowing selective vehicle data to be provided to an integrated wireless equipment management system, enabling the monitoring of vehicle operation and performance criteria beyond what is initially available on the CANbus, by using an integrated wireless equipment management system capable of receiving, storing, and processing vehicle data across a mobile wireless communications system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If standard CANbus systems are used for vehicle monitoring, then system simplicity and compatibility are maintained, but access to proprietary parameters and comprehensive vehicle data is restricted
Solution Approach 1:
The patent introduces a terminal as an intermediary device between the CANbus system and the wireless communication system. This terminal receives standard CANbus messages, extracts proprietary parameters through configuration, and transmits processed data wirelessly. The intermediary enables access to previously restricted data without modifying the original CANbus system architecture.
Solution Approach 2:
The patent creates virtual sensor data that copies and supplements the original CANbus sensor data. By configuring virtual sensors that mirror physical sensor functions, the system generates additional data streams containing proprietary parameters alongside standard parameters, enabling comprehensive monitoring without adding physical sensors to the vehicle.
2Adaptability or versatility
If virtual sensors are configured to access proprietary parameters, then monitoring capability is enhanced, but system configuration complexity increases
Solution Approach 1:
The patent implements dynamic configuration of virtual sensors through software parameters rather than hardware modifications. The terminal can be reconfigured via software to access different proprietary parameters from various vehicle manufacturers, enabling adaptable monitoring capabilities without physical reconfiguration or hardware changes.
Solution Approach 2:
The system changes operational parameters through software configuration to access different data formats and proprietary parameters. By modifying configuration parameters in the terminal, the system can adapt to different vehicle types and manufacturers' data protocols, enhancing monitoring versatility through parameter changes rather than system redesign.
3Loss of information
If comprehensive vehicle data is transmitted wirelessly, then data availability for analysis is improved, but data transmission burden increases
Solution Approach 1:
The patent extracts only the necessary proprietary parameters and virtual sensor data from the complete CANbus data stream for wireless transmission. Instead of transmitting all raw CANbus data, the terminal selectively extracts configured parameters and transmits only those, reducing transmission volume while maintaining data availability for specific analysis requirements.
Solution Approach 2:
The system transmits partial data sets containing only the configured proprietary parameters and virtual sensor information rather than complete vehicle data. This partial transmission approach provides sufficient data for intended analysis while significantly reducing transmission energy consumption compared to broadcasting all possible vehicle parameters.
Data Source
AI summary
The specification and drawing figures describe and show a method and system of monitoring CANbus information across an integrated wireless equipment management system and a mobile wireless communications system. The CANbus, mounted in a vehicle, provides communication and diagnostic information among vehicle components that, because the CANbus also is operatively connectable to the integrated wireless equipment management system, may be transmitted across that system. The CANbus includes one or more original parameters associated with sensors that are converted into virtual sensors to provide selective vehicle information to a terminal of the integrated wireless equipment management system.