Navigation Terminal Selective Feature Data Update

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Solution Overview

Problem

Conventional navigation systems transmit and receive unnecessary feature information updates, leading to increased data transmission and processing loads, as they update entire map data sets even when only minor changes occur.

Innovation Solution

An information processing system that selectively updates feature information by acquiring unique information through a network, comparing it with stored data, and only retrieving and distributing the specific updates needed, using a terminal unit and server system with dedicated modules for acquisition, selection, and distribution of feature guidance and unique information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If entire map data is transmitted for feature information updates, then all feature information is updated, but data transmission load increases unnecessarily

Engineering Contradiction:

Improvefeature information update completenessVSAvoiddata transmission volume

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent segments map data into feature information and non-feature information. The terminal unit transmits only feature information update requests to the server, which then sends back only the updated feature information. This segmentation allows selective updating of only the necessary portions of data, reducing overall transmission volume while maintaining update completeness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts unique information from the feature information and uses it as a key for identification. The terminal unit compares unique information between current and stored data to determine what needs updating. This extraction allows the system to identify and transmit only the changed portions rather than the entire dataset.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If entire map data is transmitted for feature information updates, then all features are updated, but communication costs increase

Engineering Contradiction:

Improvefeature information update completenessVSAvoidcommunication energy consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent segments the map data into feature information and non_feature information. By transmitting only the feature information that has changed rather than the entire map data, the system reduces the volume of data over the communication channel, thereby lowering energy consumption while ensuring complete updates of the necessary features.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts unique information as a key identifier and uses it to determine what needs to be transmitted. This extraction mechanism enables the system to send only the essential updated portions, reducing communication energy consumption by avoiding transmission of unchanged data.

Inventive Principle:

Principle #2Taking out (Extraction)

3Quantity of substance

If unique information comparison is performed, then only necessary data is transmitted, but processing complexity increases

Engineering Contradiction:

Improvedata transmission volumeVSAvoidupdate processing complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent extracts unique information from the feature information and uses it as a key for comparison. The terminal unit stores this unique information locally and compares it with the unique information received from the server. This extraction and comparison approach simplifies the update process by providing a clear, direct comparison mechanism that reduces processing complexity despite the added step of unique information handling.

Inventive Principle:

Principle #2Taking out (Extraction)

4Quantity of substance

If selective feature information update is implemented, then data transmission is optimized, but system complexity increases

Engineering Contradiction:

Improvedata transmission volumeVSAvoidsystem structure complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent segments the data transmission process into two parts: the terminal unit transmits only feature information update requests, and the server responds with only the updated feature information. This segmentation creates a simplified interaction model that reduces data volume while the modular structure keeps system complexity manageable through clear separation of responsibilities.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS9153130B2Information updating device, information distributing device, information processing system, method thereof, program thereof, and storage medium storing the program

Publication Date: 2015.10.06 PIONEER CORP (50 PART INTEREST)

AI summary

A terminal unit (400) of a navigation system (100) transmits to a server (300) list request information containing a rectangular code corresponding to a predetermined display rectangular area of a travel route map. The terminal unit (400) acquires from the server (300) a server POI list corresponding to the rectangular code of the list request information, and when recognizing that the server POI list contains POI individual information corresponding to terminal base data that is not stored in a terminal base storage area, the terminal unit (400) transmits base data request information about POIID of the POI individual information to the server (300). Upon acquisition of server base data corresponding to the base data request information from the server (300), the terminal unit (400) stores the server base data in the terminal base storage area as terminal base data.