Utility Vehicle J1939 Portal for Body Sensor Data Integration
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Solution Overview
Problem
The installation of sensors and communication wiring on utility service bodies is cumbersome and time-consuming, typically taking eight to ten hours, as existing systems do not efficiently communicate data using the J1939 protocol, limiting the efficient transfer of information from the vehicle body to the chassis and remote locations.
Innovation Solution
Implementing a J1939 communications system that utilizes Parameter Group Numbers (PGNs) and Standard Parameter Numbers (SPNs) to directly communicate utility service body data through the existing CAN wiring, allowing sensors and peripherals to send and receive information directly on the J1939 network, eliminating the need for separate wiring and enhancing data processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate wiring and communication systems are used for each sensor and device on the utility service body, then data can be transmitted to the Geotab transmitter, but the installation becomes cumbersome and time-consuming (8-10 hours)
Solution Approach 1:
The patent merges all sensor and device communications onto a single J1939 CAN bus network, eliminating the need for separate wiring for each sensor. The utility service body controller aggregates data from multiple sensors and transmits it through the existing chassis communication system, reducing installation time while maintaining data transmission reliability
Solution Approach 2:
The J1939 communication protocol is used as a universal communication standard that can handle multiple types of data (sensor readings, device status, control signals) through a single network infrastructure, allowing the same communication system to serve multiple functions and components
2Adaptability or versatility
If separate communication protocols and dedicated wiring are used for body sensors, then each sensor can communicate independently, but the system complexity increases and installation becomes more difficult
Solution Approach 1:
The J1939 CAN bus serves as a universal communication infrastructure that can accommodate multiple sensor types and communication needs through standardized protocols, eliminating the need for separate dedicated wiring for each sensor while maintaining communication versatility
Solution Approach 2:
The utility service body controller acts as an intermediary that collects data from multiple sensors using various protocols and converts it into standardized J1939 messages, simplifying the overall system architecture while preserving sensor communication capabilities
3Reliability
If body sensors communicate through a separate protocol on dedicated wires, then direct sensor-to-IOX communication is achieved, but installation time increases to 8-10 hours
Solution Approach 1:
The patent combines multiple communication paths into a single J1939 CAN bus network, where the utility service body controller aggregates data from all sensors and transmits it through the existing chassis communication system, maintaining communication reliability while dramatically reducing installation time
Data Source
AI summary
A method of transmitting data across a J1939 network comprises communicating at least one sensor, if not a plurality of sensors or operator interface devices, related to a utility service body data mounted on a chassis across the J1939 network on unassigned PGN/SPN combinations for various uses. Furthermore, at least one controller can evaluate other J1939 data, such as transmission gear and/or engine RPM before permitting operation of at least one function of the utility service body or upfit body with at least some embodiments.