GPS-based traffic monitoring system

• US 7,983,839 B2
• Filed: 04/16/2007
• Issued: 07/19/2011
• Est. Priority Date: 06/30/2005
• Status: Active Grant

• Current Assignee: Marvell Asia Pte Limited (Marvell Technology Group Limited)
• Original Assignee: Marvell World Trade Limited (Marvell Technology Group Limited)
• Inventors: Sutardja, Sehat
• Primary Examiner(s): Tran; Dalena
• Application Number:
  US11/787,350
• Publication Number:
  US 20080177470A1
• Time in Patent Office: 1,555 Days
• Field of Search: 701210-213, 701/117, 701/118, 701200-201, 701/207, 701/209, 340/995.13, 340/901, 340/906, 340/907
• US Class Current: 701/210
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: G08G 1/01 Detecting movement of traffic to be counted or controlled G08G1/07 - G08G1/14 take precedence
• CPC Class Codes: G08G 1/0104 Measuring and analyzing of parameters relative to traffic conditions
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station
• CPC Class Codes: G08G 1/127 to a central station ; Indicators in a central station
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 64/006 with additional information processing, e.g. for direction or speed determination
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A vehicle comprises memory for storing map data and a global positioning system (GPS) module that transmits vector and location data and that receives traffic reports from a remote traffic monitoring system. An adaptive map building module includes a path determining module that determines a travel path of the vehicle based on the vector and location data, a comparing module that compares the travel path to roads defined by the map data, and an identifying module that selectively identifies new roads based on the comparison.

Claims

1. A cellular phone, comprising:

memory configured to store map data, the map data including known roads and walking paths;

a global positioning system (GPS) module configured to i) transmit vector and location data and ii) receive traffic reports from a remote traffic monitoring system; and

an adaptive map building module including;

a path determining module configured to i) determine a travel path of the cellular phone based on the vector and location data ii) and determine a speed of the cellular phone on the travel path;

a comparing module configured to i) compare the travel path to the known roads and walking paths and ii) compare the speed to first and second predetermined speeds; and

an identifying module configured to, i) in response to the comparison of the travel path to the known roads and known walking paths and to the comparison of the speed to the first and second predetermined speeds, selectively identify new walking paths and, ii) in response to the determination, selectively add the new walking paths to the map data.

2. The cellular phone of claim 1, further comprising a generating module configured to generate new walking path data when the new walking paths are identified.

3. The cellular phone of claim 2, further comprising an updating module is configured to selectively transmit the new walking path data to at least one of the memory and the remote traffic monitoring system.

4. The cellular phone of claim 3, wherein the identifying module is configured to selectively identify new biking paths based on the comparison of the speed to the first and second predetermined speeds.

5. The cellular phone of claim 4, wherein the generating module is configured to generate new biking path data when the new biking paths are identified.

6. The cellular phone of claim 5, wherein the updating module is configured to selectively transmit the new biking paths to at least one of the memory and the remote traffic monitoring system.

7. The cellular phone of claim 4 wherein the first predetermined speed is equal to a typical minimum biking speed and the second predetermined speed is equal to a typical maximum biking speed.

8. The cellular phone of claim 1, wherein the first predetermined speed is equal to a typical minimum walking speed and the second predetermined speed is equal to a typical maximum walking speed.

9. The cellular phone of claim 1, wherein the identifying module is configured to selectively add new roads based on at least one of traffic flow on the travel path, a number of users travelling on the travel path, a speed of travel on the travel path, and a number of users travelling on the travel path.

10. A cellular phone, comprising:

memory configured to store map data, the map data including known roads;

a global positioning system (GPS) module configured to i) transmit vector and location data and ii) receive traffic reports from a remote traffic monitoring system; and

an adaptive map building module including;

a path determining module configured to determine a travel path of the cellular phone based on the vector and location data;

a comparing module configured to compare the travel path to the known roads; and

an identifying module configured to, i) in response to the comparison of the travel path to the known roads, determine whether new roads have been created, and ii) in response to the determination, selectively add the new roads to the map data,

wherein the GPS module is configured to, in response to the determination, increase a transmission rate of the vector and location data.