Boom-Mounted Range Finding for Real-Time Trench Depth Measurement
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Solution Overview
Problem
Existing work machines require a second operator to manually measure trench depth during digging operations, which is inefficient and costly.
Innovation Solution
A work machine equipped with a range finder system mounted on a boom, comprising multiple rangefinders and sensors, calculates trench depth using beam devices and on-board controllers to determine distance to the trench floor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a second operator is used to manually measure trench depth with a trench rod, then measurement accuracy is maintained, but labor cost and operational efficiency deteriorate
Solution Approach 1:
The patent replaces the manual mechanical measurement system (trench rod and second operator) with an automated optical/electronic measurement system. The range finder system uses laser or electromagnetic beams to automatically measure trench depth, eliminating the need for manual intervention while maintaining measurement accuracy and significantly improving operational efficiency.
Solution Approach 2:
The work machine is equipped with self-measuring capabilities through the integrated range finder system. The machine automatically measures its own trench depth without requiring external assistance, enabling it to perform the measurement function independently and continuously during operation.
2Extent of automation
If multiple rangefinders and sensors are mounted on the work machine, then autonomous measurement capability is achieved, but device complexity increases
Solution Approach 1:
The range finder system is designed to perform multiple functions: measuring trench depth, determining machine position, and providing data for depth calculations. By making the measurement system multi-functional, the patent reduces the need for separate dedicated components for each function, thereby managing complexity while achieving autonomous measurement capability.
Solution Approach 2:
The patent combines multiple measurement functions into a single integrated range finder system mounted on the work machine. Instead of using separate systems for depth measurement and position tracking, the invention merges these functions into one unified system that collects and processes all necessary data through integrated sensors and controllers.
3Productivity
If range finder system is mounted on the boom, then measurement is performed during operation, but vibration and interference affect accuracy
Solution Approach 1:
The patent acknowledges the dynamic and vibrating environment of the working boom and designs the range finder system to operate effectively under these conditions. The system uses rapid measurement cycles and filtering algorithms to compensate for vibrations, allowing accurate measurements to be taken during active operation rather than requiring static conditions.
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 autonomous trench depth measurement, reducing labor costs and improving operational efficiency by allowing a single operator to monitor and adjust trench depth accurately without additional personnel.
Implementation Method 1
each rangefinder includes a beam device configured to determine a distance of a plurality of rays irradiated from the beam device to a trench floor
Implementation Method 2
a range finder system mounted on the boom at a boom position and including a plurality of rangefinders, each rangefinder includes a beam device
Data Source
AI summary
A work machine comprising a trench measurement system for measuring a trench depth and trench angle during a trench digging operation is disclosed. The work machine comprises a range finder system mounted on the boom and includes a plurality of rangefinders, each rangefinder includes a beam device configured to determine a distance of a plurality of rays irradiated from the beam device to a trench floor. An on-board controller is configured to calculate the trench depth from data received by the range finder system on the boom, the sensor assembly, the boom position on the working mechanism, and attributes of the work machine. A method for measuring a trench depth and trench angle associated with a trench digging operation with range finders mounted on the boom of a work machine is also disclosed.