Vehicle Wireless Communication Group ID Registration
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Solution Overview
Problem
Existing vehicle door lock systems require multiple mobile devices for controlling multiple vehicles, which is inconvenient for users who own multiple vehicles from the same manufacturer, as each mobile device is typically limited to use with a single vehicle ID.
Innovation Solution
A wireless communication system that allows a single mobile device to communicate with multiple on-board devices by using a common group ID, enabling both keyless and smart communication protocols to unlock or lock vehicle doors, and a registration method that synchronizes group IDs across multiple on-board devices and mobile devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vehicle ID unique to an on-board device is registered into a mobile device, then the mobile device can control the vehicle door lock, but one mobile device can be used for only one vehicle
Solution Approach 1:
The patent introduces a group ID that is common to multiple on-board devices from the same manufacturer, allowing a single mobile device to control door locks across multiple vehicles. The mobile device stores both the vehicle-specific ID and the common group ID, enabling it to authenticate with different on-board devices that share the same group ID, thus achieving multi-functionality.
Solution Approach 2:
The identification system is segmented into two distinct layers: a vehicle-specific ID for individual vehicle authentication and a common group ID for manufacturer-wide compatibility. This segmentation allows the mobile device to selectively use the appropriate ID type depending on which vehicle it is attempting to access, resolving the contradiction between single-vehicle reliability and multi-vehicle versatility.
2Ease of operation
If a single mobile device is used to control multiple vehicles, then user convenience is improved, but identification information management becomes more complex
Solution Approach 1:
By implementing a common group ID that multiple on-board devices share, the system allows users to control multiple vehicles with a single mobile device. The mobile device stores the group ID along with vehicle-specific IDs, enabling automatic or selective authentication without requiring users to manage multiple separate mobile devices, thus improving ease of operation.
Solution Approach 2:
The group ID acts as a copied or replicated identification element that is distributed across multiple on-board devices from the same manufacturer. Instead of requiring unique complex identification schemes for each vehicle, the system copies the same group ID to multiple devices, simplifying the management complexity for the user while maintaining security and reliability.
Data Source
AI summary
A first mobile device can be mounted in a vehicle and includes an input unit and an output unit that can output an instruction instructing the vehicle to at least unlock the vehicle. The first mobile device is capable of wireless communication with a first on-board device and includes an operation unit. The first mobile device transmits a fourth signal having a first value of second identification information to the first on-board device. The first on-board device that has received the fourth signal changes the second identification information held in the first on-board device to the first value.