Vehicle-mounted Apparatus Keyless Entry Terminal Authentication
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Solution Overview
Problem
Conventional automotive communication systems require complex apparatus structures and are unreliable for specifying the location of mobile terminals within a vehicle, leading to decreased usability and increased human error, particularly preventing passengers other than the driver from effectively controlling vehicle-mounted apparatuses.
Innovation Solution
A vehicle-mounted apparatus with a keyless entry unit, communication unit, terminal determination unit, and processing unit that receives control information from a mobile terminal, determines the authenticity of the terminal, and accepts or rejects manipulation requests based on pre-defined permissions, allowing simple and reliable control between mobile terminals and vehicle-mounted systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the location of mobile terminal is specified using location sensor, then the mobile terminal location can be identified, but the apparatus structure becomes broadscale and reliability decreases
Solution Approach 1:
The patent introduces an intermediary approach by using the keyless entry unit as a mediator to identify the mobile terminal through the keyless entry process rather than directly using location sensors. This intermediary mechanism improves reliability by using a functional process (keyless entry) that inherently identifies the terminal without requiring complex sensor-based location tracking.
2Measurement precision
If the mobile terminal location is specified by manipulation of passenger, then the location can be identified, but the manipulation becomes complicated and human error increases
Solution Approach 1:
The system performs self-service by automatically identifying the mobile terminal through the keyless entry process without requiring manual manipulation or input from the passenger. The terminal itself initiates the identification through its inherent communication capabilities, eliminating the need for complex user operations and reducing human error.
3Adaptability or versatility
If the vehicle-mounted apparatus is manipulatable by any connected mobile terminal, then all passengers can control the apparatus, but unintended manipulations cannot be prevented
Solution Approach 1:
The patent applies local quality by differentiating the control permissions for different mobile terminals based on their identification through the keyless entry process. Instead of uniform access for all connected terminals, the system grants specific manipulation rights only to the terminal identified through keyless entry, creating localized access control that prevents unintended manipulations while maintaining versatility for authorized users.
4Device complexity
If a keyless entry unit is used to identify the mobile terminal, then the apparatus structure remains simple, but the system must handle additional authentication processes
Solution Approach 1:
The patent merges the authentication process with the existing keyless entry function, combining two processes into one unified flow. The mobile terminal's keyless entry authentication is integrated with the control permission granting, eliminating the need for separate authentication steps and maintaining simple apparatus structure while providing secure access control.
Data Source
AI summary
A vehicle-mounted apparatus is mounted on a vehicle having a keyless entry unit which receives a signal instructing a keyless entry from a mobile terminal and performs a keyless entry process in response to the received signal. The vehicle-mounted apparatus includes; a communication unit which receives control information including manipulation information indicating manipulation content for controlling the vehicle-mounted apparatus and information specifying a mobile terminal, from the mobile terminal; a terminal determination unit which determines whether the mobile terminal which transmitted the control information is the mobile terminal used for the keyless entry; a manipulation acceptance determination unit which determines whether to accept manipulation specified by the manipulation information included in the control information received by the communication unit, according to the determination result of the terminal determination unit; and a processing unit which performs a process according to the determination of the manipulation acceptance determination unit.