Cellular Network Text Messaging Control System
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Solution Overview
Problem
Current solutions fail to effectively prevent text messaging while driving without requiring modifications to existing cell phones, cellular infrastructure, or vehicles, and do not adequately distinguish between drivers and passengers in vehicles, particularly in public transportation scenarios, leading to safety risks.
Innovation Solution
A system that uses cellular network infrastructure to determine the position and velocity of cell phones, disabling texting capabilities above a certain speed threshold unless the phone is registered as a 'master phone' within a specific envelope, allowing passengers on public transportation or carpooling to text while preventing drivers from texting by determining the phone's position and velocity relative to a registered master phone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If text messaging is banned by law, then safety is improved, but compliance is poor as many people ignore the laws
Solution Approach 1:
The patent introduces an intermediary system between the driver and the text messaging function. The system monitors vehicle motion through GPS and cellular tower triangulation, and automatically blocks text messaging when the vehicle is detected to be in motion, thereby enforcing safety without requiring active compliance from the driver
Solution Approach 2:
The system enables self-service by automatically detecting whether the vehicle is moving or stationary and autonomously enabling or disabling text messaging capabilities without requiring user intervention. The driver simply uses the phone normally, and the system handles the safety enforcement automatically
2Reliability
If text messaging is disabled for all moving vehicles, then driver safety is improved, but public transportation usage is discouraged
Solution Approach 1:
The patent applies local quality by differentiating between drivers and passengers based on their position within the vehicle. The system identifies the driver's location and disables text messaging only for that specific person, while allowing passengers to text message freely, thus maintaining safety for the driver without affecting public transportation attractiveness
Solution Approach 2:
The system segments the vehicle occupants into different roles (driver vs. passenger) and applies different text messaging policies to each segment. The driver's phone is monitored and restricted when moving, while passengers' phones remain unrestricted, achieving safety goals without penalizing public transportation users
3Reliability
If proximity sensors are installed in vehicles to detect driver position, then text messaging can be prevented for drivers, but hardware modifications to vehicles and phones are required
Solution Approach 1:
The patent replaces the mechanical proximity sensor system with an electronic/software-based solution using existing GPS and cellular network infrastructure. Instead of installing physical sensors in vehicles and phones, the system uses software to analyze GPS coordinates and cellular tower triangulation data to determine vehicle motion and driver position, eliminating hardware modification requirements
Solution Approach 2:
The system achieves multiple functions using existing infrastructure: GPS receivers originally designed for emergency response and location services are repurposed to detect vehicle motion, and cellular network infrastructure originally for communications is used to both transmit location data and block text messages, eliminating the need for dedicated hardware components
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
Enables safe texting for passengers in moving vehicles without discouraging public transportation use, while effectively preventing drivers from texting by using existing cellular infrastructure and software, ensuring safety without requiring changes to cell phones or vehicles.
Implementation Method 1
A service provider's system determines the location and speed of a cell phone using the GPS receiver in a cell phone
Implementation Method 2
Position location by triangulation from multiple cell towers may be combined with GPS (AGPS or Assisted-GPS), when readings purely from a phone's GPS receiver alone are not sufficient
Data Source
AI summary
A system and method are described to disable texting while driving a moving vehicle. The position and speed of a user's cell phone are compared with that of a registered master phone. If the position and speed match that of the master phone, it is assumed that the user is a passenger and not a driver, and texting is enabled for that user. Texting at speed is disabled for a master phone user who may be an ordinary citizen or may be a professional driver of a mass transit vehicle. A professional driver may be known to the service provider and his phone may receive special treatment such that he is prevented from texting while driving but may be allowed to text while riding as a passenger. Passengers and operators of a train may be treated differently since the roadbed of a train has a known position.