Pressure-Based Machine Localization for Extendable Implement Height Limits
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Solution Overview
Problem
Existing systems struggle to accurately determine the location and vertical position of machines with extendable implements in multi-level structures or height-restricted environments, necessitating improved localization and safety measures.
Innovation Solution
A machine localization system utilizing pressure sensors to calculate relative elevations by comparing pressure readings from different locations, enabling determination of machine position and operational heights, and integrating this data into a network for real-time monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure sensors are used to determine machine elevation, then localization precision is improved, but device complexity increases
Solution Approach 1:
The system divides the elevation measurement task into multiple pressure sensor nodes distributed at different locations (machine, building, terrain). Each sensor independently measures pressure, and the computing system segments the calculation to determine relative elevations between each sensor pair, reducing individual measurement complexity while improving overall precision.
Solution Approach 2:
The computing system acts as an intermediary that receives pressure readings from multiple sensors, processes the data, and calculates relative elevations. This intermediary approach allows simple pressure sensors to achieve precise elevation determination through centralized computation without requiring complex sensor systems.
2Measurement precision
If multiple pressure sensors are deployed for accurate localization, then measurement precision improves, but loss of information increases due to data management complexity
Solution Approach 1:
The system merges pressure readings from multiple sensors with known location data and processes them together in a unified computing system. By combining the sensor data streams and processing them collectively, the system maintains precise position determination while reducing data management overhead through integrated handling rather than separate processing of each sensor's data.
3Productivity
If real-time pressure monitoring is implemented, then productivity improves through better machine coordination, but use of energy increases
Solution Approach 1:
The system implements periodic pressure monitoring rather than continuous monitoring, where pressure sensors take measurements at intervals and the computing system processes data periodically. This periodic approach maintains sufficient machine coordination efficiency for safety and operation while significantly reducing the energy consumption of sensors and computing resources compared to continuous real-time monitoring.
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 precise localization and safety management of machines by determining their positions and operational heights, preventing exceedance of safe operational limits, and facilitating efficient coordination and communication among machines on a worksite.
Implementation Method 1
The first pressure sensor and the second pressure sensor are configured to measure barometric pressure
Data Source
AI summary
A machine localization system includes a work machine including an extendable implement, a first pressure sensor coupled to the work machine, a second pressure sensor located at a known elevation, and a computing system operably coupled to the work machine, the first pressure sensor, and the second pressure sensor. The computing system is configured to receive a first pressure measurement from the first pressure sensor and a second pressure measurement from the second pressure sensor, determine a maximum operating height of the extendable implement based on a difference between the first pressure measurement and the second pressure measurement, and configure the extendable implement to not exceed the maximum operating height.