WO2023019278A3 - Use of planar graphs to perform navigational routings on road networks - Google Patents

Use of planar graphs to perform navigational routings on road networks Download PDF

Info

Publication number
WO2023019278A3
WO2023019278A3 PCT/US2022/074988 US2022074988W WO2023019278A3 WO 2023019278 A3 WO2023019278 A3 WO 2023019278A3 US 2022074988 W US2022074988 W US 2022074988W WO 2023019278 A3 WO2023019278 A3 WO 2023019278A3
Authority
WO
WIPO (PCT)
Prior art keywords
road networks
methods
planar
planar graphs
graphs
Prior art date
Application number
PCT/US2022/074988
Other languages
French (fr)
Other versions
WO2023019278A2 (en
Inventor
Philip Klein
Neal YOUNG
Original Assignee
Planaris Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Planaris Inc filed Critical Planaris Inc
Publication of WO2023019278A2 publication Critical patent/WO2023019278A2/en
Publication of WO2023019278A3 publication Critical patent/WO2023019278A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/3446—Details of route searching algorithms, e.g. Dijkstra, A*, arc-flags, using precalculated routes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
    • G06Q10/047—Optimisation of routes or paths, e.g. travelling salesman problem
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29—Geographical information databases
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/12—Shortest path evaluation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/14—Routing performance; Theoretical aspects

Abstract

The present disclosure relates to methods for efficiently and accurately solving optimization problems in road networks. When an input is required to be a planar embedded graph, one can use known efficient algorithms to obtain faster and/or more accurate solutions than for non-planar graphs. Such algorithms have not previously been considered for use in addressing practical problems in real road networks since such road networks are not generally representable by planar graphs. The present disclosure teaches methods that can be used to approximate real road networks using planar graphs and thereby apply more efficient algorithms for solving such optimization problems. In one aspect, the methods can be used to compute or estimate x-to-y distances and shortest or approximately shortest x-to-y paths in road networks. The methods can also be used to solve more complicated optimization problems such as delivery optimization, dispatch, and facility location.
PCT/US2022/074988 2021-08-13 2022-08-15 Use of planar graphs to perform navigational routings on road networks WO2023019278A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US202163259793P 2021-08-13 2021-08-13
US63/259,793 2021-08-13
US202263361565P 2022-01-06 2022-01-06
US63/361,565 2022-01-06
US202263344579P 2022-05-21 2022-05-21
US63/344,579 2022-05-21

Publications (2)

Publication Number Publication Date
WO2023019278A2 WO2023019278A2 (en) 2023-02-16
WO2023019278A3 true WO2023019278A3 (en) 2023-03-23

Family

ID=83283378

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2022/074988 WO2023019278A2 (en) 2021-08-13 2022-08-15 Use of planar graphs to perform navigational routings on road networks

Country Status (1)

Country Link
WO (1) WO2023019278A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177685A (en) * 1990-08-09 1993-01-05 Massachusetts Institute Of Technology Automobile navigation system using real time spoken driving instructions
US7603229B2 (en) * 2004-08-25 2009-10-13 Microsoft Corporation Efficiently finding shortest paths using landmarks for computing lower-bound distance estimates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177685A (en) * 1990-08-09 1993-01-05 Massachusetts Institute Of Technology Automobile navigation system using real time spoken driving instructions
US7603229B2 (en) * 2004-08-25 2009-10-13 Microsoft Corporation Efficiently finding shortest paths using landmarks for computing lower-bound distance estimates

Also Published As

Publication number Publication date
WO2023019278A2 (en) 2023-02-16

Similar Documents

Publication Publication Date Title
MX2020012898A (en) Path-based navigation of tubular networks.
PH12020550701A1 (en) Asset management method and apparatus, and electronic device
WO2020104829A3 (en) Determining paging occasion resources
WO2013117410A3 (en) Method and system for routing using uncertainty data
MX346777B (en) Vehicle-specific computation management system for cloud computing.
TN2017000324A1 (en) System information updating
DE602005020702D1 (en) PROCESS FOR SCALARMULTIPLICATION IN GROUPS OF ELLIPTIC CURVES VIA PRIMARY BODIES FOR SUB-CHANNEL ATTACK-RESISTANT CRYPTOSYSTEMS
SG11201805378XA (en) Method and device for returning robots from site
EP3473511A3 (en) Methods and systems for driver identification
MX2020008752A (en) Vehicle learning control system, vehicle control device, vehicle learning device, and vehicle control method.
GB2557070A (en) Systems and methods for distributing a service request for an on-demand service
TW200632287A (en) System and method for measuring flow
EP3582203A3 (en) Method and system for traffic management
SG11201805759PA (en) Service fallback method and apparatus
WO2014159294A3 (en) Using satellite visibility data for improved location accuracy
EP4280177A3 (en) Systems and methods to apply markings
EP4020982A3 (en) Depth sensing techniques for virtual, augmented, and mixed reality systems
WO2012063128A3 (en) Fractional order element based impedance matching
MX2018012727A (en) Systems, apparatuses, and method for mapping a space.
MX2020001473A (en) Traffic lane information management method, running control method, and traffic lane information management device.
KR20180084198A (en) Software update apparatus and method for vehicle
MX2017016209A (en) Geo-metric.
AU2017419266A1 (en) Methods and systems for estimating time of arrival
CN104182512A (en) Transformation and verification methods of GPS (global positioning system) coordinates and local coordinates
ATE557299T1 (en) METHOD AND DEVICE FOR TRANSMISSION WITH VARIABLE DATA RATE

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22769513

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE