Information Providing Apparatus Download Enable Flag Control

Solution Overview

Problem

Existing information providing systems send old information stored in personal storage areas to vehicle-mounted devices if data communication is established before the requested information is registered, leading to incorrect data transmission.

Innovation Solution

Implementing a processor-controlled system that prohibits data transmission to the vehicle-mounted device until the requested information is stored in the memory, ensuring only the latest information is sent by using a download enable flag to manage data communication connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If data communication connection is established before information is stored in personal storage area, then communication speed is improved, but incorrect old information is transmitted to the terminal

Engineering Contradiction:

Improvecommunication speedVSAvoidinformation accuracy

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The system performs preliminary storage of requested information in the personal storage area before allowing data transmission. The processor searches for and stores the information in the personal storage area (step S130) before enabling the download flag (step S140), ensuring that only current information is transmitted when the terminal requests data.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses a download enable flag as a feedback mechanism to control data transmission. The flag is set to ON only after information is successfully stored in the personal storage area, and the terminal checks this flag before initiating data download, creating a feedback loop that prevents transmission of incorrect information.

Inventive Principle:

Principle #23Feedback

2Productivity

If data communication connection is established before information is stored, then communication efficiency is improved, but data transmission control becomes complex

Engineering Contradiction:

Improvecommunication efficiencyVSAvoiddata transmission control complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The download enable flag acts as an intermediary control mechanism between the storage operation and data transmission. This simple binary flag simplifies the control logic by providing a clear state indicator that coordinates between the information center and terminal, avoiding complex control procedures while maintaining communication efficiency.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Speed

If old information is transmitted to terminal, then data transmission speed is maintained, but information accuracy deteriorates

Engineering Contradiction:

Improvedata transmission speedVSAvoidinformation accuracy

Core Design Contradiction:

SpeedVSLoss of information

Solution Approach 1:

The system performs preliminary storage of requested information in the personal storage area before allowing data transmission. The processor searches for and stores the information in the personal storage area (step S130) before enabling the download flag (step S140), ensuring that only current information is transmitted when the terminal requests data.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses a download enable flag as a feedback mechanism to control data transmission. The flag is set to ON only after information is successfully stored in the personal storage area, and the terminal checks this flag before initiating data download, creating a feedback loop that prevents transmission of incorrect information.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS7626490B2Information providing apparatus and method

Publication Date: 2009.12.01 NISSAN MOTOR CO LTD

AI summary

If an information sending request is received from an information terminal via a data communication connection before search for information requested by the information terminal via a voice communication connection is finished, the sending of the information to the information terminal is prohibited. This prevents old information from being transmitted to the information terminal in response to the information sending request.