Vehicle Wireless Device Detection and Tracking System
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Solution Overview
Problem
Vehicle occupants often forget electronic devices at various locations, leading to difficulties in tracking and managing their presence within a vehicle, especially during journeys with multiple stops.
Innovation Solution
A vehicle system equipped with a processor that detects wireless devices using RFIDs or Bluetooth signals, maintains a tracking list, and reports missing devices to occupants through wireless communication, utilizing trigger events like vehicle start-up or door openings to manage device detection and notification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If device detection is performed continuously throughout the journey, then device tracking reliability is improved, but energy consumption and system complexity increase
Solution Approach 1:
The system performs device detection at the origin location before the journey begins, establishing a baseline list of devices that should be present. This preliminary detection avoids the need for continuous monitoring throughout the entire journey, reducing energy consumption while maintaining reliable tracking of devices that were initially present
Solution Approach 2:
The system uses trigger events (vehicle start-up, door openings/closings) to automatically initiate detection cycles only when relevant changes occur. This event-driven approach allows the system to service itself by detecting only when necessary, rather than requiring continuous active monitoring, thus reducing energy consumption while maintaining detection reliability
2Use of energy by moving object
If device detection is performed only at origin location, then energy consumption is reduced, but device tracking reliability deteriorates when devices are left at intermediate stops
Solution Approach 1:
The system uses trigger events such as door openings and closings as feedback signals to initiate additional detection cycles at intermediate locations. When a door event occurs, the system checks for devices again and compares against the origin location list, enabling detection of devices left at intermediate stops without requiring continuous monitoring, thus maintaining reliability while managing energy consumption
Solution Approach 2:
The system performs detection periodically at specific intervals triggered by vehicle events (start-up, door operations) rather than continuously. This periodic detection at key moments throughout the journey maintains reliability for detecting left-behind devices while significantly reducing energy consumption compared to continuous monitoring
3Measurement precision
If multiple detection methods (RFID, Bluetooth, Wi-Fi) are used simultaneously, then device detection accuracy is improved, but device complexity and energy consumption increase
Solution Approach 1:
The system integrates multiple wireless detection methods (RFID, Bluetooth, Wi-Fi) into a single unified device detection system that can identify devices through multiple protocols. This multi-functional approach allows the system to detect various types of electronic devices using different communication protocols, improving detection accuracy and coverage without requiring separate independent systems for each protocol, thus managing complexity while enhancing precision
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
Effectively tracks and notifies vehicle occupants of forgotten devices, reducing the likelihood of devices being left behind by associating devices with specific locations and passengers, and improving the management of device presence within the vehicle.
Implementation Method 1
The received device signal may be from a radio-frequency identification sensor
Implementation Method 2
The received device signal may transfer to the processor via BLUETOOTH
Implementation Method 3
The received device signal may transfer to the processor via Wi-Fi
Data Source
AI summary
A vehicle system is provided. The vehicle system may include a processor configured to detect a wireless device based on a received device signal when a vehicle is at an origin location, add the detected device to a tracking list, register a trigger event away from the origin location, and, responsive to detection of the trigger event, attempt to detect devices on the tracking list. The processor may be further configured to report, to a vehicle occupant, all devices on the tracking list not detected by the attempt. The received device signal may be from a radio-frequency identification sensor. The received device signal may transfer to the processor via Wi-Fi. The received device signal may transfer to the processor via BLUETOOTH. The trigger event may be a vehicle start-up.