Vehicle Speed Violation Detection Using GPS and Roadway Data
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Solution Overview
Problem
Current systems lack the capability to effectively determine speed limit violations and provide alerts for drivers, particularly in situations where speed limits change between adjacent roadway segments.
Innovation Solution
A system utilizing GPS coordinates and roadway data to calculate vehicle speed and compare it to speed limits, with alerts sent to interested parties via various communication networks when violations occur, including the use of locator devices and base receivers to identify and notify drivers or fleet managers of excessive speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS receivers calculate vehicle speed using conventional methods, then speed data can be obtained, but the system cannot determine speed limit violations
Solution Approach 1:
The patent combines GPS speed calculation functionality with speed limit database lookup and violation detection capabilities into an integrated system. The locator device merges position tracking, speed computation, and regulatory compliance monitoring to transform basic speed measurement into actionable violation detection.
Solution Approach 2:
The patent introduces speed limit databases and comparison logic as intermediary components between GPS speed measurement and violation determination. These intermediaries bridge the gap between raw speed data and meaningful compliance information by providing reference speed limits and performing comparative analysis.
2Reliability
If the system monitors vehicle speed and location, then real-time tracking is achieved, but alerts for speed limit violations are not provided
Solution Approach 1:
The patent implements feedback mechanisms where the system continuously monitors vehicle speed, compares it against stored speed limit data, and provides immediate alerts when violations occur. This closed-loop feedback transforms passive monitoring into active compliance management by notifying drivers and fleet managers of speed limit exceedances.
Solution Approach 2:
The patent performs preliminary actions by pre-loading speed limit databases and establishing comparison criteria before violation detection is needed. The system proactively configures alert thresholds and notification channels in advance, enabling immediate violation response without delays in system setup or configuration.
3Loss of information
If GPS receivers provide location and speed data, then basic navigation information is available, but change in speed limit between adjacent roadway segments is not detected
Solution Approach 1:
The patent segments roadway information into discrete segments with associated speed limit data. By dividing the continuous roadway network into manageable segments and assigning speed limit attributes to each, the system can efficiently compare speed limits between adjacent segments and detect changes without overwhelming computational complexity.
Solution Approach 2:
The patent creates a universal speed limit database structure that serves multiple functions: providing reference speeds for violation detection, identifying changes between adjacent segments, and supporting both individual vehicle monitoring and fleet-wide compliance tracking. This multi-functional database reduces overall system complexity by consolidating diverse information needs into a single framework.
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 real-time monitoring and alerting of speed limit violations, ensuring compliance and safety by providing timely notifications to drivers and fleet managers through a networked system that integrates GPS data with speed limit information.
Implementation Method 1
A Global Positioning System (GPS) receiver can estimate its current location by receiving location coordinates from existing GPS satellites
Implementation Method 2
The speed of the GPS receiver and associated component coupled to the GPS receiver such as, for example, a vehicle, can be calculated using conventional methods such as computing movement per unit time
Implementation Method 3
computing the doppler shift in the pseudo range signals from the satellites
Data Source
AI summary
Systems and methods to determine a speed limit violation by a vehicle. A locator device coupled to the vehicle receives GPS location coordinates from a satellite. The systems and methods determine the speed of the vehicle using the received coordinates or the functions of an engine control module. The speed limit of the segment of roadway on which the vehicle is traveling is identified based on the coordinates, and the vehicle speed is compared to the speed limit to determine whether the vehicle is violating the speed limit for the segment of roadway. The systems and methods alert any interested parties, such as the vehicle driver or a fleet manager, of the speed limit violation.