Map Fragment Delivery for Local Speeding Detection

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Solution Overview

Problem

Existing speed alert systems face challenges in reducing storage and network resource usage on in-vehicle client devices while minimizing latency in determining speeding events, as they often require storing and updating extensive map data and transmitting speed information to a mapping platform.

Innovation Solution

A mapping platform transmits map fragments and speed limit information to client devices, allowing local determination of speeding events, thereby reducing network and storage burdens and latency by enabling clients to process this information in real-time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If the client device stores and processes complete map data locally, then speeding event detection can be performed locally with low latency, but storage requirements and device complexity increase significantly

Engineering Contradiction:

Improvelatency in determining speeding eventsVSAvoidstorage requirements on client device

Core Design Contradiction:

Loss of timeVSQuantity of substance

Solution Approach 1:

The patent segments the map data into map fragments, where only the necessary portions related to the vehicle's current location and route are stored and processed on the client device. This allows local processing of speeding events with reduced storage requirements, as the device only holds relevant map segments rather than complete map datasets.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transitions from a single-dimension approach (storing all map data locally) to a multi-dimensional approach by distributing map data between the mapping platform and client device. The system uses spatial dimension (map fragments based on location) and temporal dimension (providing fragments ahead of time) to resolve the contradiction between local processing needs and storage constraints.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If the client device receives and processes complete map data from the mapping platform, then accurate speeding determination can be made, but network resource usage and data transmission burden increase

Engineering Contradiction:

Improveaccuracy of speeding determinationVSAvoidnetwork resource usage

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts only the essential map data elements needed for speeding determination (map fragments containing speed limit information and relevant road segments) from the complete map dataset. This extraction approach maintains accuracy by including all necessary information for speed calculations while eliminating redundant data, thereby reducing network transmission requirements.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system provides map fragments that contain slightly more data than the minimum required (including buffer zones around the vehicle's path and anticipated routes), ensuring accurate speeding detection without transmitting the entire map dataset. This partial action approach balances reliability with network efficiency.

Inventive Principle:

Principle #16Partial or excessive action

3Reliability

If map data is continuously updated on the client device to maintain current information, then accurate real-time speeding alerts can be provided, but storage management complexity and update network traffic increase

Engineering Contradiction:

Improvecurrent accuracy of speed limit informationVSAvoidstorage management and update processing

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The mapping platform proactively provides map fragments to the client device before the vehicle reaches the relevant geographic areas. This preliminary action allows the client device to have current map information available locally without requiring complex real-time update mechanisms, as the data is prepared and delivered in advance based on the vehicle's intended route.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically determines which map fragments to provide based on the vehicle's current location, planned route, and historical behavior. This dynamic approach optimizes the set of map fragments stored on the client device, ensuring current and relevant information is available while minimizing storage requirements and update complexity compared to static or comprehensive update strategies.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11538338B2Providing map fragments to a device

Publication Date: 2022.12.27 VERIZON PATENT & LICENSING INC

AI summary

A device can receive, from a client device, information identifying a location of the client device and determine at least one of an expected future location of the client device or the expected route of the client device based on the information identifying the location of the client device and at least one of: information identifying one or more expected possible routes e associated with the client device, or information identifying a route history associated with the client device, determine, based on the expected future location of the client device, information representing a map fragment and can determine speed limit information associated with the map fragment and, transmit, to the client device, the information representing the map fragment and the speed limit information, wherein the client device is to use the information representing the map fragment and the speed limit information to determine a speeding event associated with a vehicle.