Wireless Transceiver Travel Time Estimation

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Solution Overview

Problem

Existing travel time estimation methods, such as GPS-based systems and automatic license plate recognition, are unreliable in environments with obstacles, poor lighting, bad weather, and cluttered backgrounds, limiting their accuracy and effectiveness.

Innovation Solution

A system utilizing wireless transceivers and a remote server to capture and process communication data from mobile devices, including location, identification, and timestamp data, to generate travel time data across predetermined segments, even in adverse conditions, by leveraging wireless signals and cloud-based processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If GPS-based systems are used to estimate travel time, then travel time can be determined through location timestamps, but the system becomes unreliable in environments with obstacles such as skyscrapers, tunnels, and mountains

Engineering Contradiction:
Improvetravel time estimation reliabilityVSAvoidobstacles blocking GPS signals
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces wireless transceivers as intermediary devices deployed at specific locations along roadways. These transceivers act as mediators between mobile devices and the travel time estimation system, providing reliable location detection through wireless signal identification rather than GPS. When mobile devices communicate with these transceiver intermediaries, the system can accurately determine travel time even when GPS signals are blocked by obstacles like skyscrapers, tunnels, and mountains.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If automatic license plate recognition systems are deployed, then travel time can be measured between recognized points, but the system becomes unreliable under poor lighting, bad weather, motion blur, and occlusion conditions

Engineering Contradiction:
Improvetravel time estimation reliabilityVSAvoidpoor lighting, bad weather, motion blur, occlusion
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the optical-mechanical license plate recognition system with an electronic wireless communication-based system. Instead of using cameras that are susceptible to lighting, weather, and motion conditions, the system uses wireless transceivers that detect and identify mobile devices through electromagnetic signals. This substitution eliminates the harmful effects of poor lighting, bad weather, motion blur, and occlusion that plague camera-based systems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If camera-based license plate recognition is used, then visual identification can occur at specific locations, but the system suffers from limited image resolution and cluttered backgrounds

Engineering Contradiction:
Improvelicense plate recognition accuracyVSAvoidimage quality degradation
Core Design Contradiction:
Measurement precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The patent replaces the visual-optical detection mechanism with an electronic wireless signal detection mechanism. Wireless transceivers identify mobile devices through unique device identifiers via electromagnetic communication, completely avoiding the image quality issues of camera systems. This substitution resolves problems related to limited image resolution and cluttered backgrounds by using a different physical domain (electromagnetic waves instead of visible light).

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20240159544A1System and Method for Travel Time Estimation in Real-Time
Publication Date: 2024.05.16 ROBERT BOSCH GMBH
  • US20240159544A1 patent drawing
  • US20240159544A1 patent drawing
  • US20240159544A1 patent drawing

AI summary

A computer-implemented system and method relates to travel time estimation using wireless signals. First communication data is received from a first wireless transceiver at a first location. The first communication data includes identification data of a mobile communication device. The second communication data includes second communication data from a second wireless transceiver at a second location. The second communication data includes the identification data of the mobile communication device. The first communication data and the second communication data, which are associated with the mobile communication device, are extracted using the identification data. Travel time data is generated for the mobile communication device with respect to a travel segment, defined between the first location and the second location, using the first communication data and the second communication data. The aggregated travel time data is generated for the travel segment. The aggregated travel time data includes at least the travel time data of the mobile communication device. The aggregated travel time data is transmitted for visual representation on a display.