Vehicle Alert System Using Weight Detection and Wireless Trigger
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Solution Overview
Problem
Existing alert devices fail to effectively prevent children from being left unattended in vehicles, as they lack a reliable mechanism to detect the presence of a child and alert the driver when the child is left behind.
Innovation Solution
A vehicle alert system comprising a car seat with a weight-sensing base unit and a remote unit carried by the driver, where the base unit detects the child's weight and emits an audible alarm when the remote unit moves beyond a trigger distance from the base unit, ensuring the child is not left unattended.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a weight-sensing base unit is used to detect child presence, then detection reliability is improved, but device complexity increases
Solution Approach 1:
The system is divided into distinct functional modules: a base unit with weight sensing capability placed on the car seat, and a separate remote unit carried by the driver. This segmentation allows each component to perform its specific function independently, improving overall system reliability while keeping individual components relatively simple.
Solution Approach 2:
The patent introduces an intermediary communication system between the base unit and remote unit. The base unit detects weight and triggers a signal that communicates with the remote unit via wireless communication, serving as an intermediary that translates physical presence into actionable alert information for the driver.
2Reliability
If a remote unit with audible alarm is carried by the driver, then alert effectiveness is improved, but ease of operation deteriorates
Solution Approach 1:
The system operates autonomously without requiring driver intervention. The base unit automatically detects when a child is present via weight sensing, and the remote unit automatically receives and processes the signal, emitting an audible alarm if the driver leaves the vehicle with the child. This self-service operation eliminates the need for manual monitoring while maintaining high alert effectiveness.
Solution Approach 2:
The system implements a feedback loop where the base unit continuously monitors weight status and communicates with the remote unit. When the driver moves beyond a trigger distance from the base unit, the system provides immediate feedback through the audible alarm, creating a closed-loop control system that automatically responds to driver behavior.
3Measurement precision
If weight detection mechanism is implemented in the base unit, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent employs relatively simple, cost-effective weight sensing technology in the base unit rather than complex measurement systems. The base unit uses basic weight detection capability sufficient for distinguishing child presence from absence, accepting limited precision in exchange for maintaining simple, affordable device architecture.
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 reliably prevents children from being left unattended in vehicles by using weight detection and wireless communication to alert the driver, providing a practical solution to this safety concern.
Implementation Method 1
The base unit detects weight
Implementation Method 2
The remote unit is in electrical communication with the base unit
Implementation Method 3
the remote unit emits an audible alarm
Data Source
AI summary
A vehicle alert system inhibiting a child from being left unattended in a vehicle includes a car seat that is selectively positioned in a vehicle and child is selectively seated in the car seat. A base unit is positioned upon the seat to be sat upon thereby facilitating the base unit to detect weight. The base unit is turned on when the base unit detects weight. A remote unit is carried by the driver of the vehicle. The remote unit is in electrical communication with the base unit. Moreover, the remote unit emits an audible alarm when the remote unit moves beyond a trigger distance from the base unit and the base unit is turned on. In this way the remote unit inhibits the child from being left unattended in the vehicle.