Mobile Work Machine Surveying System
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Solution Overview
Problem
Traditional methods for measuring cross slope and longitudinal slope of roadways are time-consuming and require manual crews, while existing sensor-based systems do not provide real-time mapping of variances.
Innovation Solution
A surveying system equipped with a work machine featuring sensors for longitudinal pitch and lateral roll, a locating device for position tracking, and a communicating device for network communication, which processes and transmits data to offboard controllers to generate variance maps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual survey crews are used to measure roadway slopes, then measurement accuracy is maintained, but surveying speed and productivity are reduced
Solution Approach 1:
The patent replaces manual mechanical surveying methods with an automated sensor-based system. Sensors mounted on a mobile work machine automatically collect slope data (cross-slope and longitudinal slope) as the machine moves along the roadway, eliminating the need for manual measurement while maintaining data accuracy and significantly increasing surveying speed.
Solution Approach 2:
The surveying system utilizes the mobile work machine itself as the data collection platform. The work machine's own sensors and positioning systems are leveraged to perform surveying functions, allowing the machine to simultaneously perform its primary work function and collect roadway slope data without requiring separate dedicated surveying equipment or personnel.
2Measurement precision
If sensor-based estimation methods are used, then surveying speed is improved, but real-time mapping capability and measurement precision are insufficient
Solution Approach 1:
The system integrates multiple functions into a single surveying platform: slope measurement sensors (accelerometers, rate sensors), positioning system (GPS/locating device), data processing unit, and real-time map generation capability all work together on the mobile work machine. This multi-functional integration enables both precise measurement and immediate visualization of roadway conditions.
Solution Approach 2:
The system incorporates real-time feedback through immediate data processing and map generation. As sensors continuously collect slope and position data, the controller processes this information and generates updated roadway condition maps in real-time, providing immediate feedback on roadway variances and enabling prompt decision-making for road maintenance.
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 rapid, automated data collection and real-time monitoring of road conditions, reducing the need for human survey crews and improving the efficiency and safety of road maintenance.
Implementation Method 1
a work machine having at least one sensor configured to produce a signal indicative of a longitudinal pitch of the work machine and a signal indicative of a lateral roll of the work machine
Implementation Method 2
a locating device disposed on the work machine configured to determine the location of the work machine
Data Source
AI summary
A surveying system is provided having a work machine with at least one sensor configured to produce a signal indicative of a longitudinal pitch of the work machine and a lateral roll of the work machine. The work machine additionally includes a locating device configured to determine the location of the work machine, a communicating device configured to communicate over a network, and a controller in communication with the at least one sensor and the locating device. The controller is configured to receive the signals from the at least one sensor, create survey data by linking the signals with the location of the work machine, and communicate the survey data using the communicating device over the network to one or more offboard controllers. At least one offboard controller is configured to compare the survey data to one or more threshold values, calculate variances, and generate a map displaying the variances.