Vehicle Path Compensation Using Marker-Based Speed Profile Control
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Solution Overview
Problem
Existing goods handling systems require complex and computationally intensive methods to control the positions of transportation vehicles, lacking precision and efficiency in navigation.
Innovation Solution
A method using markers with unique identification information and a server-based system to compute and transmit navigational paths, allowing vehicles to navigate between markers efficiently and prevent collisions, using a graph theory-based marker map to determine routes and manage path reservations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If machine detectable tape or lasers with reflective material are used for navigation, then vehicles can be guided along predefined paths, but the system becomes complex and computationally intensive
Solution Approach 1:
The patent replaces complex mechanical navigation systems (tape on floor, laser systems with reflective material) with a simplified marker-based system. Vehicles detect markers using sensors (cameras, RFID readers) and receive navigation instructions wirelessly, eliminating the need for physical guidance infrastructure and complex onboard computation.
Solution Approach 2:
The patent introduces a server as an intermediary between markers and vehicles. The server receives sensor data from vehicles, determines navigation paths based on marker positions, and transmits instructions to vehicles. This centralizes computational complexity in the server rather than requiring complex onboard vehicle systems.
2Measurement precision
If complex control systems are used to manage vehicle positions, then navigation can be achieved, but processing power and computational resources are excessively consumed
Solution Approach 1:
The patent replaces computationally intensive onboard processing with simple sensor detection and wireless communication. Vehicles only need to detect marker positions and execute received navigation instructions, transferring the computational burden to the server and reducing vehicle processing requirements.
Solution Approach 2:
The patent divides the navigation system into distinct functional segments: markers provide position information, sensors detect markers, the server computes navigation paths, and vehicles execute instructions. This segmentation allows each component to perform its function efficiently without requiring full system complexity at every node.
3Productivity
If existing navigation systems are used, then vehicles can travel between locations, but collision prevention and path management are insufficient
Solution Approach 1:
The patent implements a feedback loop where vehicles continuously transmit sensor data to the server, which monitors vehicle positions and adjusts navigation instructions in real-time. This centralized monitoring enables the server to detect potential collisions and modify paths to prevent them, improving safety without reducing efficiency.
Solution Approach 2:
The patent computes and reserves navigation paths in advance before vehicles begin movement. The server determines complete routes between markers and communicates them to vehicles beforehand, allowing for proactive collision prevention rather than reactive adjustments during travel.
Data Source
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AI summary
Described herein are an apparatus and a method for path correction of a vehicle travelling from a first marker to a second marker. The method includes the steps of: computing, by circuitry of an information processing apparatus, an offset in a location of the vehicle with respect to the first marker; dividing a distance between the first maker and the second marker into a predetermined number of segments; computing a speed profile of the vehicle based on the distance between the first marker and the second marker; generating a compensation curve based on the computed offset and a plurality of interpolation points; and modifying, upon each segment being traversed by the vehicle, the speed profile of the vehicle.