Vehicle Radio Apparatus Intersection Entry Prediction

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Solution Overview

Problem

In high-traffic intersections without traffic signals, existing radio-based alert systems face challenges in accurately notifying drivers of approaching vehicles due to increased collision probability and signal interference, leading to unclear alerts and potential accidents.

Innovation Solution

A radio apparatus mounted on vehicles that acquires positional and traveling direction information, predicts intersection entries, and transmits packet signals only when deceleration is detected near intersections without traffic signals, allowing for targeted notifications based on predicted vehicle interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If radio signals are transmitted continuously to notify all vehicles at intersections, then alert coverage is improved, but signal collision probability increases and notification clarity deteriorates

Engineering Contradiction:

Improvealert coverageVSAvoidsignal collision

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system transitions from uniform continuous transmission to localized conditional transmission. Radio signals are transmitted only in specific local conditions: when vehicles are detected near intersections without traffic signals, when deceleration is detected, or when potential collision risks are identified. This local quality approach reduces overall signal density while maintaining alert coverage in critical areas.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The transmission system becomes dynamic by adjusting signal transmission based on real-time conditions. The transmitting apparatus continuously monitors vehicle position, intersection data, and deceleration states, dynamically switching between transmission and non-transmission states. This dynamic adaptation optimizes signal delivery while minimizing collisions.

Inventive Principle:

Principle #15Dynamics

2Reliability

If radio signals are transmitted to all vehicles at intersections without traffic signals, then safety notification is improved, but driver recognition capability deteriorates due to continuous notification

Engineering Contradiction:

Improvesafety notificationVSAvoiddriver recognition capability

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

Instead of transmitting signals to all vehicles uniformly, the system applies partial action by selectively transmitting only to vehicles that meet specific risk criteria. The transmitting apparatus evaluates multiple conditions (intersection presence, deceleration, detected vehicle proximity) and transmits signals only when necessary, providing targeted notifications that maintain driver attention without causing alert fatigue.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system incorporates feedback mechanisms where the transmitting apparatus receives information about detected vehicles, intersection characteristics, and deceleration events. This feedback loop enables intelligent decision-making about when to transmit alerts, ensuring that notifications are provided only when actual risk is present, thereby maintaining driver recognition capability.

Inventive Principle:

Principle #23Feedback

3Device complexity

If radio apparatus transmits signals based on simple positional information, then transmission simplicity is maintained, but notification accuracy deteriorates due to insufficient contextual analysis

Engineering Contradiction:

Improvetransmission simplicityVSAvoidnotification accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The system merges multiple information sources and analysis functions within the transmitting apparatus. It combines positional information acquisition, intersection database matching, deceleration detection, and detected vehicle analysis into an integrated decision-making system. This merging enables accurate risk assessment while maintaining a unified transmission control mechanism.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The transmitting apparatus performs preliminary actions by pre-loading intersection information from databases and continuously monitoring vehicle status parameters before actual transmission decisions are made. This preliminary preparation of data and conditions enables rapid, accurate transmission decisions without complicating the actual transmission process.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8548729B2Radio apparatus mounted on a vehicle

Publication Date: 2013.10.01 SANYO ELECTRIC CO LTD

AI summary

A positional information acquiring unit acquires positional information of a vehicle. An intersection predicting unit predicts an intersection, which the vehicle will enter, by associating the positional information with map information. An entrance predicting unit acquires the positional information of another vehicle included in a packet signal from a transmitting apparatus mounted on the other vehicle and associates the positional information of the other vehicle with the map information, thereby predicting whether the other vehicle enters the intersection predicted by the intersection predicting unit. When entrance of the other vehicle is predicted, an effect predicting unit predicts whether travel of the other vehicle has an effect on this vehicle based on traveling direction information of the other vehicle acquired from the packet signal. The notifying unit notifies presence of the other vehicle when presence of the effect is predicted.