Tire Bead Acceleration Sensing for Silage Compaction Assessment
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Solution Overview
Problem
Existing methods lack a reliable way to assess the compaction state of silage in flat silos, which affects the quality and fermentation process of silage.
Innovation Solution
A method using a work vehicle with inflated tires and acceleration sensors to detect tire deformations during entry and exit points, combined with a prediction model incorporating auxiliary variables, to determine the compaction state of silage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional compaction methods are used without measurement, then the compaction process is simple and easy to operate, but the compaction state cannot be reliably assessed
Solution Approach 1:
The patent replaces direct mechanical measurement of silage compaction with an indirect mechanical measurement system that monitors tire deformation. Instead of measuring silage properties directly, the system uses acceleration sensors to detect changes in tire bead position and deformation, which correlate with compaction state. This substitution enables measurement while keeping the overall system relatively simple.
Solution Approach 2:
The patent introduces the tire as an intermediary element between the compaction force and the measurement system. The acceleration sensor does not contact the silage directly but measures tire deformation, which serves as an intermediate indicator of compaction state. This intermediary approach enables indirect assessment of silage compaction through measurable tire parameters.
2Measurement precision
If acceleration sensors are installed in the tire bead to measure deformation, then compaction state can be determined, but the device complexity increases
Solution Approach 1:
The patent makes the tire itself serve the measurement function by utilizing its natural deformation under load. The tire structure and its response to compaction forces are leveraged as the measurement mechanism, eliminating the need for separate, complex measurement apparatus. The acceleration sensor simply detects the tire's own deformation behavior.
Solution Approach 2:
The patent replaces complex direct contact measurement systems with a simpler acceleration-based detection system. Instead of using multiple sensors or complex mechanical gauges to measure silage compaction directly, the system uses a single acceleration sensor to detect tire bead deformation, which indirectly indicates compaction state.
3Measurement precision
If tire deformation is measured at entry and exit points, then compaction state can be determined, but data processing complexity increases
Solution Approach 1:
The patent implements a feedback system where acceleration data from tire deformation is processed to determine compaction state and provide guidance to the operator. The processor unit analyzes the relationship between tire deformation at different positions and silage compaction, creating a closed-loop system that provides actionable feedback for optimizing the compaction process.
Solution Approach 2:
The patent replaces complex mechanical measurement and calculation systems with an electronic data processing system. Instead of using mechanical gauges and manual calculations to assess compaction, the system uses acceleration sensors and electronic processors to automatically detect, transmit, and analyze tire deformation data, determining compaction state through computational methods.
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 accurate determination of silage compaction, allowing for improved compaction processes and real-time feedback to drivers, enhancing fermentation quality.
Implementation Method 1
via an acceleration sensor, a normal and/or tangential acceleration occurring in a tire bead is detected
Implementation Method 2
the deformations of the tire casing occurring in each case during the rolling of the tire in an entry point and an exit point are ascertained
Data Source
AI summary
A method for ascertaining a compaction state of silage stored in a flat silo, in which a work vehicle used for compacting the silage has inflated tires on at least one vehicle axle, includes in a first step, via an acceleration sensor, one or more of a normal and a tangential acceleration occurring in a tire bead is detected and wirelessly transmitted in the form of sensor data corresponding thereto to a processor unit, in a second step, starting from the transferred sensor data from the processor unit, the deformations of the tire casing occurring in each case during the rolling of the tire in an entry point and an exit point are ascertained and compared to one another, and in a third step, based on the comparison, a compression behavior and in turn therefrom the compaction state of the silage is determined by the processor unit.