Power Storage Pack Pairing With Dynamic Verification Code Display
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Solution Overview
Problem
Existing power storage packs for electric vehicles lack secure verification methods for pairing with mobile terminal devices, as fixed verification codes on stickers are vulnerable to security breaches and increase costs when replaced frequently.
Innovation Solution
A power storage pack with a wireless communication unit and a notification unit that displays a tentative verification code via LED lamps, allowing secure pairing with mobile terminal devices without additional hardware, using existing display technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a display capable of displaying a verification code with multiple digits is provided on the battery pack, then the security of the pairing process is improved, but the cost increases
Solution Approach 1:
The notification unit, originally designed to display battery status information, is made multi-functional by enabling it to display verification codes for pairing authentication. This allows the existing display hardware to serve dual purposes: indicating battery charge levels and presenting security verification codes, thereby improving pairing security without adding dedicated display hardware or increasing costs
2Ease of manufacture
If a sticker on which a barcode, QR code, or the like is printed is attached to the battery pack, then the cost is kept low, but the security level is reduced due to fixed verification codes being constantly exposed
Solution Approach 1:
The verification code display is made dynamic by using the notification unit to present codes temporarily during the pairing process only. Unlike static stickers that permanently expose verification codes, this dynamic display shows codes only when needed for authentication, then hides them afterward. This temporal control maintains security while keeping costs low by using existing display capabilities
3Ease of operation
If a sticker with a verification code is attached to the battery pack, then the implementation is simple and cost-effective, but human errors in code input may occur and security is compromised
Solution Approach 1:
The system implements feedback by having the mobile terminal device capture an image of the verification code displayed on the battery pack's notification unit. This automated image capture and code recognition process eliminates manual typing errors that occur with sticker-based codes, while the feedback loop ensures the correct code is transferred from display to terminal device without human intervention
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
Enhances security and reduces operational burden by generating new verification codes each time, eliminating human errors, and maintaining low costs.
Implementation Method 1
a wireless communication unit configured to perform short-range wireless communication
Implementation Method 2
a notification unit that presents, to a user of a mobile terminal device, a tentative notification of a verification code
Data Source
AI summary
In a power storage pack, a power storage unit supplies electric power to an electric mobile body. A wireless communication unit performs short-range wireless communication. A notification unit presents, to a user of a mobile terminal device, a tentative notification of a verification code that is to be used in the process of exchanging an encryption key that is to be used for the short-range wireless communication with the mobile terminal device. The notification unit may include a remaining capacity display for the power storage unit.