Vehicle Repositioning Control for Sensor-Limited Moving Assembly
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Solution Overview
Problem
Existing vehicle manufacturing systems fail to effectively reposition vehicles when an information acquisition unit inside a vehicle cannot acquire information on the position and attitude of the vehicle behind it, leading to inefficiencies in manufacturing processes.
Innovation Solution
A vehicle manufacturing system that includes determination and repositioning means to select and reposition a vehicle equipped with an information acquisition unit capable of acquiring the position and attitude of a vehicle in front, using various sensors such as LiDAR, radar, or GPS, when the initial vehicle is not equipped with the necessary information acquisition unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a vehicle is not equipped with an information acquisition unit for acquiring information on the vehicle behind it, then the device complexity is reduced, but the manufacturing precision and production efficiency deteriorate due to inability to maintain proper manufacturing sequence
Solution Approach 1:
The patent introduces a server as an intermediary that collects position information from vehicles equipped with information acquisition units and uses this data to determine and manage the manufacturing sequence. Vehicles without information acquisition units can still be managed in the production sequence through the server's centralized information processing, eliminating the need for each vehicle to have its own acquisition unit while maintaining manufacturing precision
Solution Approach 2:
The server performs multiple functions: it collects position information from vehicles, determines the manufacturing sequence based on this information, and manages the overall production coordination. This multi-functional approach allows the system to maintain manufacturing precision without requiring individual vehicles to have complex information acquisition and processing capabilities
2Productivity
If vehicles are manufactured in a fixed production order, then the manufacturing process is simple to manage, but the productivity decreases when vehicles need to be repositioned due to information acquisition capabilities
Solution Approach 1:
The manufacturing sequence is made dynamic rather than fixed. The server continuously receives position information from vehicles and can adjust the manufacturing order in real-time based on vehicle positions and information acquisition capabilities. This dynamic adjustment allows the system to optimize productivity by repositioning vehicles as needed without requiring complex manual intervention or fixed rigid scheduling
3Measurement precision
If all vehicles are equipped with information acquisition units, then the measurement precision of vehicle position and attitude is improved, but the manufacturing cost increases due to additional components
Solution Approach 1:
The patent merges the information acquisition function from individual vehicles into a centralized server. Instead of each vehicle having its own information acquisition unit, the server consolidates this capability and collects position information from vehicles that do have such units. This allows the system to maintain high measurement precision for vehicles that need it while avoiding the cost of equipping every vehicle with redundant acquisition units
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 efficient rearrangement of vehicle manufacturing order during production, ensuring that vehicles without the required information acquisition means can still be manufactured based on information from other vehicles, thereby maintaining production efficiency.
Implementation Method 1
the first information acquisition means is a photographing apparatus, a LiDAR, a radar, a GPS, or an ultrasonic sensor
Implementation Method 2
the first information acquisition means is a photographing apparatus, a LiDAR, a radar, a GPS, or an ultrasonic sensor
Implementation Method 3
the first information acquisition means is a photographing apparatus, a LiDAR, a radar, a GPS, or an ultrasonic sensor
Data Source
AI summary
A vehicle manufacturing system includes: a determination unit configured to determine whether or not a first vehicle among a plurality of vehicles is equipped with a first information acquisition unit configured to acquire first information indicating a position and an attitude of a vehicle behind the first vehicle, the plurality of vehicles being manufactured step by step while they are continuously moving; and a vehicle repositioning unit configured to select and reposition a vehicle equipped with a second information acquisition unit configured to acquire second information indicating a position and an attitude of a vehicle in front thereof as a second vehicle following the first vehicle when the determination unit determines that the first vehicle is not equipped with the first information acquisition unit.