Driving Assistance Destination Setting Without Repeated Pairing

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Solution Overview

Problem

Existing driving assistance systems face security risks and increased processing loads due to the need for frequent pairing between in-vehicle devices and mobile terminals for wireless communication, complicating the connection process and reducing user convenience.

Innovation Solution

A driving assistance system that wirelessly connects a vehicle-mounted device to a terminal device without pairing, using near-field wireless communication to establish a connection based on received signal strength indicators and user input verification, thereby reducing security risks and processing loads by ensuring only authorized devices communicate and set destinations for assistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pairing process is performed every time wireless connection is required, then security is improved, but device complexity and processing load increase

Engineering Contradiction:
ImprovesecurityVSAvoidprocess complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs pairing in advance before the actual wireless connection is needed. The pairing process establishes security credentials beforehand, so when connection is required, the devices can quickly authenticate using pre-established credentials rather than performing full pairing each time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The wireless connection process is divided into two separate stages: pairing (security establishment) and connection (data transmission). By segmenting these functions, the patent allows pairing to occur once for security purposes, while subsequent connections can proceed more quickly without repeating the full pairing process.

Inventive Principle:
Principle #1Segmentation

2Reliability

If pairing process is performed every time wireless connection is required, then security is improved, but time consumption increases

Engineering Contradiction:
ImprovesecurityVSAvoidconnection establishment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

Pairing is performed in advance to establish security credentials before the actual connection is needed. This preliminary security setup allows subsequent connections to be established quickly without repeating the time-consuming pairing process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system performs pairing in advance before the actual wireless connection is needed. The pairing process establishes security credentials beforehand, so when connection is required, the devices can quickly authenticate using pre-established credentials rather than performing full pairing each time.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If wireless connection is established without pairing, then processing load is reduced, but security deteriorates

Engineering Contradiction:
Improveprocessing loadVSAvoidsecurity
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

Pairing is performed in advance to establish security credentials before the actual connection is needed. This preliminary security setup allows subsequent connections to be established quickly without repeating the time-consuming pairing process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary mechanism where pre-established pairing credentials act as a mediator between security requirements and quick connection needs. These credentials enable automatic authentication without full pairing, reducing processing load while maintaining security.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If wireless connection is established without pairing, then ease of operation is improved, but security deteriorates

Engineering Contradiction:
Improveconnection simplicityVSAvoidsecurity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

Pairing is performed in advance to establish security credentials before the actual connection is needed. This preliminary security setup allows subsequent connections to be established quickly without repeating the time-consuming pairing process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses pre-established pairing credentials to automatically authenticate devices without requiring user intervention for each connection. The devices self-verify their authorization using the previously exchanged security information, making operation simple while maintaining security.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11243090B2Driving assistance device, control method, and non-transitory computer-readable medium storing program
Publication Date: 2022.02.08 TOYOTA JIDOSHA KK
  • US11243090B2 patent drawing
  • US11243090B2 patent drawing
  • US11243090B2 patent drawing

AI summary

A driver assistance device mounted on a vehicle includes a communication unit; an output unit; an input unit configured to detect user input; and a control unit configured to perform driver assistance with use of a point on a map as a destination. The control unit is configured to i) execute a connection process to connect the driver assistance device to a terminal device wirelessly via the communication unit, ii) output identification information on the terminal device as an image or a voice via the output unit after the driver assistance device is wirelessly connected to the terminal device, and iii) execute a setting process to set the point determined by the terminal device as the destination for the driver assistance in a case where the control unit detects specified user input via the input unit after outputting the identification information on the terminal device.