Trailer Power Line Communication for Multi-Trailer Identification
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Solution Overview
Problem
Current communication systems for tractor-trailer combinations lack efficient methods to track and manage multiple trailers connected to a single tractor, particularly in terms of identifying trailers and transmitting data across the power line carrier network, which limits real-time monitoring and management of trailer status and cargo information.
Innovation Solution
A communication system that includes a trailer module with a power line transceiver and a processor, capable of transmitting a trailer identification number via a short-wavelength ultra-high frequency protocol, and a tractor module with a power line transceiver and secondary sensors, allowing for data transmission over the power line carrier network and separate communication protocols to manage multiple trailers connected to a single tractor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single tractor pulls multiple trailers, then cargo transport capacity increases, but tracking and identifying each trailer becomes more complex
Solution Approach 1:
The communication system is segmented into independent trailer modules, each with its own transceiver and identification system. Each trailer operates as an autonomous node that can be individually identified and tracked, eliminating the need for a centralized complex tracking system while enabling multiple trailers to be managed simultaneously.
Solution Approach 2:
The power line carrier network serves multiple functions simultaneously: it provides electrical power to trailer modules and enables bidirectional data communication. This multi-functionality reduces the need for separate communication infrastructure, simplifying the overall system while supporting multiple trailers.
2Device complexity
If trailer identification and data transmission are integrated into the power line carrier network, then separate communication infrastructure is reduced, but reliable data transmission over power lines becomes more challenging
Solution Approach 1:
The system implements feedback mechanisms where trailer modules transmit data back to the tractor module through the same power line carrier network. This bidirectional communication allows for error detection, acknowledgment, and retransmission protocols that ensure reliable data transmission despite the challenging electrical environment of power lines.
Solution Approach 2:
The power line transceiver acts as an intermediary device that converts data signals into forms suitable for transmission over power lines and back again. This intermediary conversion process enables reliable communication by adapting signals to the specific characteristics of the power line medium, filtering out electrical noise and interference.
3Productivity
If real-time monitoring of trailer status is implemented, then operational efficiency improves, but energy consumption increases
Solution Approach 1:
The power line carrier network provides continuous power and communication capability without requiring periodic reconnections or separate monitoring intervals. Trailer modules can transmit status data continuously or on-demand through the always-active power lines, enabling real-time monitoring while utilizing the existing continuous power infrastructure efficiently.
Solution Approach 2:
Trailer modules are equipped with onboard sensors and processing capabilities that enable them to autonomously monitor their own status and transmit relevant data when needed. This self-service approach reduces the need for constant centralized querying and processing, lowering overall energy consumption while maintaining real-time monitoring capabilities.
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
Enables efficient tracking and management of multiple trailers, ensuring accurate identification and real-time data transmission, enhancing operational efficiency and logistics management by integrating trailer identification and sensor data into a unified communication system.
Implementation Method 1
The trailer module is programmed to use the power line transceiver to receive a data message from a second trailer module of a second cargo trailer that is following the cargo trailer and is connected thereto by a power line carrier
Implementation Method 2
The trailer module is further programmed to forward data of the data message using the power line transceiver and power line carrier, the data being forwarded to a trailer module of a leading trailer or to a tractor module mounted in a tractor
Data Source
AI summary
A communication system, includes a trailer bridge disposed on a cargo trailer, the trailer bridge comprising a power line transceiver for communicating with a tractor module when the trailer and a tractor having the tractor module are electrically connected; and a locator module for communicating with the trailer bridge, the locator module comprising a mobile or cellular transceiver for communicating with a mobile or cellular communications network external to the trailer. The locator module is to communicate making of the electrical connection between the trailer and tractor to a remote datacenter of an owner/operator of the trailer in response to a signal from the trailer bridge indicating that the electrical connection has been made.