Autonomous Cart Following With Absolute Position Path Tracking
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Solution Overview
Problem
Conventional carts require significant user control and effort to follow users in crowded spaces, leading to inefficiencies and potential collisions due to inaccurate positioning and path tracking.
Innovation Solution
A cart equipped with a positioning sensor, obstacle sensor, and controller that stores user position information and generates a moving path to maintain a predetermined distance while avoiding obstacles, using absolute coordinates to ensure accurate tracking and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cart directly follows the user in crowded spaces, then the cart can assist users in moving objects, but the cart requires significant user control and effort leading to inefficiencies and potential collisions
Solution Approach 1:
The cart autonomously tracks the user's position using positioning sensors and automatically generates moving paths without requiring user control inputs. The cart serves itself by independently navigating through crowded spaces while avoiding obstacles, eliminating the need for user effort in controlling the cart.
Solution Approach 2:
The patent replaces manual mechanical control with automated sensor-based positioning and control systems. Positioning sensors detect the user's location, and the controller automatically computes and executes the moving path, substituting the mechanical user-cart interaction with an automated electro-mechanical system.
2Adaptability or versatility
If the cart uses relative coordinates to track user position, then the cart can follow user movement, but positioning accuracy deteriorates over distance and time
Solution Approach 1:
The patent transitions from relative coordinate tracking to absolute coordinate positioning. Instead of tracking position changes relative to a starting point, the system uses absolute coordinates referenced to a fixed origin, adding spatial dimensionality stability and eliminating cumulative errors that occur with relative positioning over distance and time.
3Manufacturing precision
If the cart accumulates position information over time, then the cart can generate accurate moving paths, but error accumulation occurs in movement distance and direction
Solution Approach 1:
The system continuously receives feedback from positioning sensors about the user's absolute position and compares it with the planned moving path. The controller adjusts the cart's trajectory in real-time based on this feedback, preventing error accumulation by constantly referencing the absolute coordinate system rather than accumulating relative position changes.
Data Source
AI summary
A cart that follows a transmission module based on position information of the transmission module and a method for moving the cart are provided. According to an embodiment of the present disclosure, the cart accumulatively stores the position information of the transmission module and generates a moving path based on the position information of the transmission module and moves.