Parking Assistance Device Reducing Route Calculation Time
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Solution Overview
Problem
Conventional parking assistance devices require significant calculation time to compute both forward and backward parking routes, leading to increased processing load and time consumption.
Innovation Solution
A parking assistance device that includes an input-output interface, a condition obtaining unit, a map generation unit, a parking-area determination unit, a contact detection unit, and a movement-direction determination unit, which generates a map of surrounding conditions and obstacles, determines a suitable parking area, simulates vehicle orientation, and determines the optimal movement direction to reduce calculation time for route generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both forward and backward parking routes are computed, then comprehensive parking route options are provided, but calculation time and processing load increase significantly
Solution Approach 1:
The patent extracts and eliminates the unnecessary computation of forward parking routes, keeping only the backward parking route calculation. This is achieved by determining that backward parking is sufficient for the parking assistance function, thereby removing the redundant forward route computation that contributes to excessive calculation time while still providing comprehensive parking solutions.
Solution Approach 2:
The patent segments the parking route calculation into distinct phases: first determining the target parking area, then calculating only the backward parking route from the current position to that target. This segmentation allows the system to avoid computing both forward and backward routes simultaneously, reducing the overall computational burden while maintaining functionality.
2Reliability
If both forward and backward parking routes are computed, then complete parking path coverage is achieved, but device processing load increases
Solution Approach 1:
The patent removes the forward parking route calculation component from the system, retaining only the backward parking route computation. This extraction reduces the processing load on the device while maintaining adequate parking path coverage through the backward route alone, which is sufficient for assisting vehicles into parking spaces.
Solution Approach 2:
The patent divides the parking assistance function into sequential steps: target parking area determination followed by backward parking route calculation. This segmentation allows the device to process only the necessary backward route information rather than handling both forward and backward routes, thereby reducing processing load while ensuring complete parking path coverage for the selected approach.
Data Source
AI summary
A parking assistance device includes a processor. The processor generates a map recording the position of an obstacle around a vehicle and the positions of parking areas available for the vehicle to park. The processor determines a parking area to park the vehicle, out of the parking areas recorded on the map, based on the generated map and the obtained position information. The processor performs a simulation on the map where the vehicle is turned until the vehicle has approximately the same orientation as the parking area and detects a contact position at which the vehicle comes into contact with the obstacle recorded on the map. The processor determines a movement direction in which the vehicle is to be moved from a position indicated by the position information, based on the contact position.