Expandable Bag for Wireless Power Supply and Vehicle Fixation
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Solution Overview
Problem
In paid parking areas, the installation of a wireless power-supplying system for vehicles is costly due to the need for additional unauthorized use prevention systems, and existing systems are vulnerable to unauthorized use, leading to losses from both parking and power fees.
Innovation Solution
A power-supplying device with a bag unit that expands to occupy the space between the power-supplying and power-receiving coils, fixing the vehicle from below until payment is made, using a control device to manage the power supply and bag expansion/contraction, preventing unauthorized use without the need for additional prevention systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless power-supplying system is installed in a paid parking area, then power supply functionality is provided, but cost significantly increases due to the need for additional unauthorized use prevention systems
Solution Approach 1:
The patent combines the unauthorized use prevention function with the wireless power supply system by integrating a bag that serves dual purposes: it prevents unauthorized vehicle removal from the parking space and simultaneously functions as part of the power transmission mechanism. The bag is inflated to secure the vehicle and maintain the electromagnetic coupling between transmitting and receiving coils, eliminating the need for separate prevention systems.
Solution Approach 2:
The bag component performs multiple functions: (1) prevents unauthorized vehicle removal by securing the vehicle to the ground, (2) maintains the electromagnetic field coupling for wireless power transfer, and (3) serves as a control mechanism for power supply activation. This multi-functionality reduces overall system complexity and cost.
2Reliability
If a conventional unauthorized use prevention system (flap) is used, then vehicle exit is prevented, but the system is vulnerable to forced crossing and causes loss of parking fees
Solution Approach 1:
The bag acts as an intermediary mechanism between the vehicle and the ground, providing a more reliable prevention method than direct mechanical barriers. When inflated, the bag creates a secure connection that is difficult to bypass, and it can be controlled to deflate only after proper payment is made, preventing both unauthorized exit and forced crossing scenarios.
Solution Approach 2:
The system incorporates feedback control where the bag's inflation state is linked to payment verification. The bag remains inflated (preventing unauthorized use) until payment is confirmed, at which point it deflates to allow vehicle exit. This feedback mechanism eliminates the vulnerability to forced crossing that plagues conventional flap systems.
3Reliability
If the bag expands to fix the vehicle, then unauthorized use is prevented, but the space between power-supplying coil and power-receiving coil must be occupied
Solution Approach 1:
The patent merges the vehicle fixation function with the power transmission medium by using the inflated bag itself as the electromagnetic coupling medium. The bag material allows electromagnetic field penetration while providing mechanical securing, so the same space-occupying structure serves both fixation and power transmission purposes simultaneously.
Solution Approach 2:
The bag material is selected with specific electromagnetic properties that allow field penetration despite physical presence. By changing the material parameters (electromagnetic permeability, conductivity) of the bag, it becomes transparent to the power transmission field while maintaining its mechanical fixation function, thus resolving the space occupation conflict.
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
Prevents unauthorized use by ensuring the vehicle cannot be driven until payment is made, reducing costs and losses by eliminating the need for conventional unauthorized use prevention systems while maintaining efficient power supply.
Implementation Method 1
a power-supplying coil (20) installed within a predefined parking region and configured to wirelessly supply power to a power-receiving coil (50) of a vehicle parked in the parking region
Implementation Method 2
a bag (30) provided to cover the power-supplying coil (20) and configured to expand to occupy a space between the power-supplying coil (20) and the power-receiving coil (50), and fix the vehicle from below
Data Source
AI summary
A wireless power-supplying system includes a power-supplying coil installed within a predefined parking space, a balloon provided to cover the power-supplying coil and configured to expand to occupy a space between the power-supplying coil and a power-receiving coil of the vehicle parked in the parking space, and fix the vehicle from below, and a power supply control unit configured to cause the balloon to fix the vehicle until payment of a usage fee of the parking space is completed when the vehicle has been fixed from below by the balloon, wherein power is wirelessly supplied from the power-supplying coil to the power-receiving coil of the vehicle in a state in which the vehicle is fixed to the balloon.