Roadside Information Server Aggregating Sensors for Vehicle Alerts

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Solution Overview

Problem

Existing methods struggle to efficiently notify mobile objects of information about surrounding objects while maintaining detection accuracy, leading to increased communication load and protocol overhead.

Innovation Solution

An information provision server that aggregates data from multiple sensors to determine and create secondary information, which is then transmitted to mobile objects, reducing overlap and optimizing radio resource use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If individual cameras independently supply information to the vehicle, then detection coverage is improved, but protocol overhead and communication load increase

Engineering Contradiction:

Improvedetection coverageVSAvoidprotocol overhead

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges information from multiple cameras at a server rather than having each camera independently communicate with the vehicle. The server aggregates detection results from multiple cameras and generates a single set of notification information, eliminating redundant protocol overhead while maintaining comprehensive detection coverage.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The server acts as an intermediary between multiple cameras and the vehicle. Instead of direct camera-vehicle communication for each detection, the server receives data from cameras, processes it centrally, and sends consolidated notification information to the vehicle, reducing communication load and protocol complexity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If information from multiple sensors is aggregated and processed, then detection accuracy is improved, but communication load increases

Engineering Contradiction:

Improvedetection accuracyVSAvoidcommunication load

Core Design Contradiction:

Measurement precisionVSLoss of energy

Solution Approach 1:

The patent extracts only the essential notification information from the aggregated sensor data at the server side, rather than transmitting all raw sensor data or complete detection results to the vehicle. This selective extraction maintains detection accuracy while minimizing communication load.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The server performs preliminary processing and filtering of sensor data before transmission to the vehicle. By pre-aggregating and pre-processing information at the server, the system reduces the amount of data that needs to be communicated, thereby lowering communication load while preserving detection accuracy.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12412474B2Information provision server, information provision method, and recording medium storing program

Publication Date: 2025.09.09 NEC CORP

AI summary

An information provision server includes: an determination part for determining, based on primary information acquired from an individual one of a plurality of sensors, each of which senses a predetermined range of a road, whether or not to provide secondary information created by using the primary information acquired from the plurality of sensors to a first mobile object running on the road; an information creation part for creating, if the determination part determines to provide the secondary information to the first mobile object, the secondary information by using the primary information acquired from the plurality of sensors; and a transmission part for transmitting the secondary information to the first mobile object.