Transporter Vehicle Control System for GNSS-Degraded Mining Navigation
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Solution Overview
Problem
In transporter vehicles operating in mines without human intervention, abnormalities in the ionization layer can lead to a deterioration in the accuracy of Global Navigation Satellite System (GNSS) position detection, resulting in reduced productivity.
Innovation Solution
A control system that includes a target position data calculation unit to determine target position data based on the positional relationship between a target object and a target point input by an input device, and a course data generation unit to create navigation data for the transporter vehicle, allowing it to travel accurately without relying solely on GNSS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If GNSS position detection is used for navigation, then the transporter vehicle can operate autonomously, but the position detection accuracy deteriorates when ionization layer abnormalities occur
Solution Approach 1:
The patent introduces an intermediary system consisting of base stations and mobile communication networks that act as mediators between the transporter vehicle and the satellite positioning system. When GNSS accuracy deteriorates due to ionization layer abnormalities, the vehicle uses mobile communication signals from base stations as an alternative positioning method, ensuring continuous accurate navigation without compromising autonomous operation.
2Reliability
If alternative positioning methods are implemented to maintain accuracy, then position detection reliability improves, but the system complexity increases
Solution Approach 1:
The patent implements a universal positioning system where the transporter vehicle can use multiple positioning methods (GNSS and mobile communication-based positioning) through a single integrated control unit. This multi-functional approach allows the system to switch between positioning methods based on availability and accuracy requirements, improving reliability without requiring separate dedicated systems for each method.
Solution Approach 2:
The system continuously monitors the accuracy and availability of GNSS signals and automatically switches to alternative positioning methods when degradation is detected. This feedback mechanism ensures that the vehicle maintains accurate position detection reliability while using a relatively simple switchable architecture rather than complex parallel systems.
3Device complexity
If the transporter vehicle relies solely on GNSS for navigation, then the navigation system remains simple, but productivity deteriorates when GNSS accuracy is compromised
Solution Approach 1:
The patent pre-establishes multiple positioning infrastructure elements (base stations with known coordinates, mobile communication networks) in the work area before operation begins. When GNSS accuracy deteriorates, the vehicle can immediately switch to these pre-prepared alternative positioning resources, maintaining productivity without requiring complex real-time decision-making or complicated navigation system architecture.
Data Source
AI summary
A control system of a transporter vehicle includes a target position data calculation unit configured to calculate target position data of a target point of the transporter vehicle based on positional relationship between a target object whose position data has been identified, and the target point of the transporter vehicle that is input by an input device, and a course data generation unit configured to generate course data of the transporter vehicle at least based on the target position data.