Onboard Device Automatic Pairing via Identifier Transmission

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Solution Overview

Problem

The existing techniques for pairing mobile terminals with onboard devices in vehicles require user intervention, making the process cumbersome and inconvenient.

Innovation Solution

The onboard device automatically permits pairing with mobile terminals by sharing a unique identifier through short-range radio communication, using acceleration values or accessory power source activation to initiate pairing without user input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pairing is performed by allowing user to perform predetermined setting in the vehicle, then pairing can be established between mobile terminal and onboard device, but the predetermined setting is troublesome and user convenience is reduced

Engineering Contradiction:

Improvepairing establishmentVSAvoiduser convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The onboard device automatically performs pairing with the mobile terminal by transmitting its identifier and receiving the same identifier from the mobile terminal without requiring user intervention. The system serves itself by autonomously completing the pairing process through automated identifier matching, eliminating the need for manual setting operations.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical/manual operation of user input (typing, button pressing) with an automated electronic identification and matching system. The pairing process is substituted from a manual mechanical interaction to an automated digital identifier comparison and matching mechanism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If pairing is performed automatically by sharing identifier, then user convenience is improved, but additional processing time and data transmission are required

Engineering Contradiction:

Improveuser convenienceVSAvoidpairing processing time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The onboard device transmits its identifier to the mobile terminal in advance through short-range radio communication before the actual pairing is needed. This preliminary transmission of identification data prepares the mobile terminal for quick automated matching, reducing the time required when pairing is actually initiated.

Inventive Principle:

Principle #10Preliminary action

3Stability of the object's composition

If accessory power source is turned on when start switch is pressed, then system starts normally, but pairing data transmission is delayed

Engineering Contradiction:

Improvesystem startupVSAvoidpairing data transmission time

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent turns on the accessory power source in advance when the door is opened or key is inserted, before the start switch is pressed. This preliminary activation allows the onboard device to begin transmitting pairing data earlier, reducing the overall time required for pairing while maintaining stable system startup sequence.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10938971B2Onboard device and information processing program

Publication Date: 2021.03.02 TOYOTA JIDOSHA KK

AI summary

An onboard device is provided in a vehicle and includes: a communication unit configured to perform short-range radio communication with a mobile terminal; and a pairing permitting unit configured to permit pairing between the onboard device and the mobile terminal by causing the mobile terminal to receive data including an identifier for uniquely identifying the onboard device when the mobile terminal in which the same identifier as the identifier is set comes within a predetermined distance from the onboard device.