Vehicle Zone Location System Using Distributed Antenna Modules
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Solution Overview
Problem
Current mobile device location and authentication systems for vehicle access are inefficient due to inaccurate results, high energy consumption, and increased costs, particularly when using multiple antennas and transceivers, and are vulnerable to external attacks.
Innovation Solution
A system with a main electronic control unit connected to multiple antenna modules, each with a transceiver, reduces the number of receivers and transceivers needed, uses fewer coaxial cables, and incorporates external antennas for enhanced security, allowing for accurate location determination using Bluetooth communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one Bluetooth transceiver is connected to multiple antennas, then device complexity and cost are reduced, but measurement precision and accuracy deteriorate due to inability to collect simultaneous measurements
Solution Approach 1:
The system divides the vehicle into multiple zones, each with its own antenna module containing a transceiver. This segmentation allows simultaneous measurements in different zones while keeping each transceiver's workload manageable, resolving the conflict between reducing transceiver count and maintaining measurement accuracy.
Solution Approach 2:
The patent introduces a spatial dimension by distributing transceivers across different vehicle zones rather than concentrating them in one location. This dimensional distribution enables parallel measurements throughout the vehicle interior, improving location accuracy without requiring a single complex centralized transceiver system.
2Device complexity
If one Bluetooth transceiver is connected to multiple antennas, then device complexity is reduced, but energy consumption increases due to more communication packets required
Solution Approach 1:
By segmenting the transceiver system into multiple distributed units, each handling local antenna communications, the mobile device processes fewer packets per transceiver connection. This reduces the total energy burden on the mobile device compared to a single transceiver managing all antennas.
Solution Approach 2:
Each antenna module performs partial measurement functions locally rather than requiring all antennas to communicate through a single transceiver. This partial action approach reduces the communication packet burden on the mobile device, lowering energy consumption.
3Measurement precision
If multiple Bluetooth transceivers are used, then measurement precision improves, but manufacturing cost increases due to additional antennas and transceivers
Solution Approach 1:
Each antenna module is designed as a universal, multi-functional unit that can operate independently or in coordination with other modules. This universality allows standardized manufacturing of identical modules, reducing production costs despite using multiple transceivers, as each module serves multiple functions including transmission, reception, and local processing.
4Object-affected harmful factors
If transceivers are mounted outside the vehicle, then security against external attacks is improved, but device complexity increases
Solution Approach 1:
The system segments the transceiver placement strategy, positioning antenna modules at exterior vehicle locations rather than relying on a single centralized unit. This segmentation naturally distributes security functions across multiple external points, reducing vulnerability to external attacks while maintaining manageable system complexity through modular design.
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 provides accurate location identification with reduced energy consumption and costs, while protecting against external attacks by minimizing the number of communication packets and using external antennas for added security.
Implementation Method 1
a first transceiver (56) connected to a first antenna (54) that receives signals from the mobile electronic device (12)
Data Source
AI summary
A system for identifying location of a mobile electronic device relative to an object. The system includes an electronic control unit configured to calculate location of the mobile electronic device, the electronic control unit including a first transceiver connected to a first antenna that receives signals from the mobile electronic device used by the electronic control unit to identify location of the mobile electronic device. One or more antenna modules are in communication with the electronic control unit. Each one of the antenna modules includes a second transceiver connected to at least two secondary antennas that receive signals from the mobile electronic device used by the electronic control unit to identify location of the mobile electronic device.