Vehicle Wheel Sensor Relay Communication Architecture
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Solution Overview
Problem
Existing systems for communicating measurement data from electronic sensors in vehicle wheels to an electronic control unit are energy-intensive, leading to reduced battery life and increased maintenance needs, as each sensor must transmit data independently at high power to ensure reception, especially when far from the control unit.
Innovation Solution
A method where primary emitter modules transmit data to relay modules at low power, which then relay the data to the electronic control unit at higher power, optimizing energy usage and reducing the need for frequent high-power transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each electronic measurement module transmits data directly to the electronic control unit at high power, then data communication reliability is improved, but energy consumption increases and battery life decreases
Solution Approach 1:
The patent introduces relay modules as intermediary nodes between primary emitter modules and the electronic control unit. Primary emitter modules transmit data to relay modules at low power, and relay modules forward the data to the control unit at high power. This mediator approach allows distant modules to communicate reliably without directly consuming high energy, as the relay modules handle the high-power transmission burden.
Solution Approach 2:
The patent segments the communication network into different functional roles: primary emitter modules (data sources), relay modules (intermediaries), and the electronic control unit (central receiver). This segmentation allows each node to operate at optimized power levels based on its role and distance from the control unit, reducing overall energy consumption while maintaining communication reliability.
2Productivity
If each electronic measurement module transmits data at high power to ensure reception, then communication efficiency is improved, but battery life is reduced
Solution Approach 1:
Relay modules serve as mediators that receive low-power transmissions from primary emitter modules and retransmit them at high power to the electronic control unit. This allows primary emitter modules to maintain communication efficiency for their local transmissions while extending battery life by avoiding high-power direct transmissions to distant control units.
Solution Approach 2:
The patent applies local quality by having different modules transmit at different power levels according to their specific needs and distances. Primary emitter modules transmit at low power locally to relay modules, while relay modules transmit at high power to ensure reachability to the control unit. This localized power optimization improves overall system efficiency and battery life.
3Use of energy by moving object
If distributed electronic control units are used to reduce communication distance, then energy consumption is reduced, but system complexity and cost increase
Solution Approach 1:
The patent makes existing electronic measurement modules multi-functional by designating some as relay modules in addition to their primary sensing function. These relay modules perform both their normal measurement/communication role and the additional function of relaying data from other modules. This approach reduces energy consumption without requiring separate dedicated relay devices, thereby avoiding increased system complexity and cost.
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 approach extends the battery life of electronic measurement modules by reducing energy consumption and minimizing the frequency of high-power transmissions, while maintaining efficient data communication and reducing maintenance requirements.
Implementation Method 1
sending, by said primary emitter module, over a first radio communication link at a power below a first threshold, of measurement messages to at least one second electronic measurement module called relay module
Implementation Method 2
sending, by the relay module, of the measurement messages received and of its own measurements to the electronic control unit over a second radio communication link at a power above a second threshold, higher than or equal to the first threshold
Data Source
AI summary
Disclosed is a method for communicating measurement messages between a plurality of electronic measurement modules and an electronic control unit of a motor vehicle. The method includes the steps of measurement (E1), by a primary emitter module, of parameter values associated with the wheel in which the module is mounted, of sending (E2), by the primary emitter module, of measurement messages to a relay module, of reception (E3) by the relay module, of the measurement messages sent, of measurement (E5), by the relay module, of parameter values associated with the wheel in which the relay module is mounted and of sending (E6), by the relay module, of the measurement messages received and of its own measurements to the electronic control unit.