Vehicle Window Glass Pattern Unlocking Without Smart Keys
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Solution Overview
Problem
Current vehicle door and engine locks using smart keys are vulnerable to code cracking and require physical possession of the key for operation, leading to potential safety hazards and poor user experience when the key is lost or forgotten.
Innovation Solution
Implementing a vehicle unlock system that uses a window glass to sense touch operations, convert them into digital patterns, and match against predetermined unlock information for unlocking the vehicle without a smart key, allowing customization and enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If smart key with fixed wireless unlock code is used, then vehicle unlocking is convenient, but security vulnerability increases due to code cracking risk
Solution Approach 1:
The patent applies dynamics by making the unlock code changeable and time-dependent. The system generates different unlock codes for different time periods, transforming the static fixed code into a dynamic changing code, which resolves the security vulnerability while maintaining convenience through automatic code generation and validation
Solution Approach 2:
The patent changes the parameter of the unlock code from fixed to variable. By introducing time as a parameter that modifies the unlock code, the system ensures that the same physical key cannot unlock the vehicle outside its valid time window, thereby enhancing security against code cracking while preserving ease of operation within the valid period
2Reliability
If smart key is required for vehicle unlocking, then security is maintained, but user experience deteriorates when key is lost or forgotten
Solution Approach 1:
The patent introduces a server as an intermediary between the key fob and the vehicle. The server validates the unlock code against the time window and vehicle identifier, enabling remote authorization and providing an alternative unlocking path when the physical key is unavailable, thus improving accessibility without compromising security
Solution Approach 2:
The patent creates a virtual copy of the key function through the server system. Instead of relying solely on the physical key fob, the system replicates the unlocking capability through server-based validation of time-dependent codes, allowing users to unlock vehicles even when the physical key is lost or forgotten while maintaining security through server-side verification
3Ease of operation
If fixed wireless unlock code is used in smart key, then unlocking operation is simple, but security hazard increases
Solution Approach 1:
The patent implements periodic action by dividing the unlock code validity into specific time windows. The system generates codes that are valid only for predetermined time periods, creating a periodic validation pattern that prevents unauthorized use outside these windows while maintaining simple operation during valid periods through automatic code generation
Solution Approach 2:
The patent transforms the static fixed code into a dynamic time-dependent code. The unlock code changes based on the current time relative to the predetermined time window, making each code unique to its time period and resistant to cracking attempts, while maintaining operational simplicity through automated code generation and validation
Data Source
AI summary
A vehicle unlock method for unlocking a vehicle by pattern drawn on an objective glass includes: receiving a vehicle unlock request and enabling a pattern sensing function of the objective glass of the vehicle based on the vehicle unlock request; identifying a first touch operation of a user on the objective glass and obtaining vehicle unlock information according to an identified result of the first touch operation of the user; determining whether the vehicle unlock information matches with predetermined unlock information; and unlocking the vehicle in response to the vehicle unlock information matching with the predetermined unlock information. A vehicle device and a vehicle are also disclosed.