Vehicle Navigation System Using Power Line Communication for Driver Condition Monitoring
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Solution Overview
Problem
Existing driving support systems face challenges in providing timely and appropriate advice for improving fuel consumption rates, as they struggle to accurately determine a user's physical condition, especially when the user is not resting, leading to discomfort from frequent advice notifications.
Innovation Solution
A driving support system that measures a user's physical condition outside the vehicle using a wristwatch-type instrument and transfers data to a vehicle's navigation apparatus via power line communication, allowing for timely advice on fuel-conscious driving operations based on pre-collected condition data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If advice for driving operation is provided frequently to improve fuel consumption rate, then fuel efficiency is improved, but user comfort deteriorates due to excessive notifications
Solution Approach 1:
The system performs preliminary measurement of the user's physical condition (pulse, blood pressure, body temperature) before driving begins. This advance assessment allows the system to predict the user's attentiveness level and pre-determine the appropriate advice provision strategy, thereby avoiding excessive notifications during driving while still achieving fuel efficiency improvements.
Solution Approach 2:
The system continuously monitors driving operation data (acceleration, deceleration, braking patterns) and compares it against fuel consumption standards. Based on this feedback loop, the system selectively provides advice only when abnormal driving patterns are detected, rather than providing continuous notifications, thus balancing fuel efficiency improvement with user comfort.
2Measurement precision
If advice is provided based on real-time physical condition measurement during driving, then accuracy of physical condition assessment is improved, but system complexity increases due to additional measurement equipment
Solution Approach 1:
The system measures the user's physical condition (pulse, blood pressure, body temperature) in advance before driving begins, rather than during driving. This preliminary measurement approach achieves accurate physical condition assessment without requiring complex real-time monitoring equipment during driving, thus maintaining measurement precision while avoiding increased system complexity.
Solution Approach 2:
The system uses a portable measurement device (wristwatch-type instrument) as an intermediary to collect physical condition data before driving. This external device serves as a mediator between the user's body and the vehicle's navigation apparatus, allowing accurate physical condition assessment without integrating complex measurement equipment into the vehicle system itself.
3Measurement precision
If physical condition data is collected outside the vehicle, then accuracy of baseline assessment is improved, but data transfer reliability may deteriorate due to communication interruptions
Solution Approach 1:
The system collects and stores physical condition data (pulse, blood pressure, body temperature) in advance before driving begins, when the user is in a resting state. This preliminary data collection ensures accurate baseline assessment. The data is stored locally in the navigation apparatus and only transferred when needed, minimizing communication interruptions and maintaining data transfer reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively improves fuel consumption rates by providing appropriate advice to users, contributing to environmental benefits by optimizing driving habits based on their physical condition, while minimizing discomfort from excessive notifications.
Implementation Method 1
receiving the condition data from the physical condition measuring unit through a power line that connects a battery in the vehicle and a power supply unit outside the vehicle for charging the battery
Data Source
AI summary
The navigation apparatus in a vehicle receives physical condition data regarding user's condition from a measurement instrument through a power line when the vehicle is connected to the power line. The navigation apparatus determines whether a travel condition of the vehicle that is driven by using the sensors disposed in the vehicle, in terms of the driving operation concerning the fuel consumption rate of the vehicle. If the driving operation is not determined as fuel-consumption-conscious, an advice for the driving operation is output from the navigation apparatus according to the physical condition of the user. The user thus can have an appropriate advice for the driving operation that improves the fuel consumption rate of the vehicle at an appropriate timing that takes into consideration of the physical condition of the user under measurement outside of the vehicle.