System and method for monitoring and updating speed-by-street data

• US 7,859,392 B2
• Filed: 05/22/2007
• Issued: 12/28/2010
• Est. Priority Date: 05/22/2006
• Status: Active Grant

• Current Assignee: Inthinc Technology Solutions Incorporated
• Original Assignee: IWI Incorporated
• Inventors: Eyre, Richard, McClellan, Scott, Catten, Jonathan C., Follmer, Todd, Capps, Eric, Maynard, Ed, Ord, Dave, Russon, Verlin
• Primary Examiner(s): Crosland; Donnie L
• Application Number:
  US11/805,238
• Publication Number:
  US 20080252487A1
• Time in Patent Office: 1,316 Days
• Field of Search: 340/441, 340/905
• US Class Current: 340/441
• CPC Class Codes: G01S 5/0027 of actual mobile position, i.e. position determined on mobile
• CPC Class Codes: G06Q 10/06398 Performance of employee with respect to a job function
• CPC Class Codes: G08G 1/052 with provision for determining speed or overspeed speed measuring in general G01P
• CPC Class Codes: G08G 1/096725 where the received information generates an automatic action on the vehicle control
• CPC Class Codes: G08G 1/09675 where a selection from the received information takes place in the vehicle
• CPC Class Codes: G08G 1/096791 where the origin of the information is another vehicle
• CPC Class Codes: G08G 1/20 Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
• CPC Class Codes: H04W 4/027 using movement velocity, acceleration information

Abstract

System and method for identifying speeding violations, comprising determining a current speed and a current location of a vehicle, determining a posted speed limit for the current location from a speed-by-street database, comparing the current speed of the vehicle to the posted speed limit, and evaluating whether the current speed exceeds the posted speed limit. Errors are identified in the speed-by-street database by storing a plurality of speeding violation records, wherein the speeding violation records each include a speeding event location; analyzing the speeding violation records to identify one or more speeding event locations having multiple speeding violations; comparing a posted speed limit at the one or more speeding event locations having multiple speeding violations to corresponding speed limit data in the speed-by-street database; and identifying one or more speed limit entries in the speed-by-street database that do not match the posted speed limit.

Claims

1. A method for identifying errors in a speed-by-street database, comprising:

storing a plurality of speeding violation records, wherein at least one of the speeding violation records includes a speeding event location;

analyzing the speeding violation records to identify one or more speeding event locations having multiple speeding violations;

comparing a posted speed limit at the one or more speeding event locations having multiple speeding violations to corresponding speed limit data in the speed-by-street database; and

identifying one or more speed limit entries in the speed-by-street database that do not match the posted speed limit.

2. The method of claim 1, wherein the speeding violation records are created based upon a comparison of a vehicle'"'"'s speed to a speed limit entry in the speed-by-street database.

3. The method of claim 1, further comprising:

updating entries in the speed-by-street database with the posted speed limit at the one or more speeding event locations.

4. The method of claim 3, further comprising:

identifying a speeding condition, wherein the speeding condition is associated with a location and a speed; and

comparing the location and speed to an updated speed-by-street database.

5. The method of claim 1, further comprising:

creating a list of entries in the speed-by-street database that do not match the posted speed limit at the one or more speeding event locations.

6. The method of claim 5, wherein the list comprises locations and posted speeds for one or more of the speeding event locations.

7. The method of claim 5, further comprising:

identifying a speeding condition, wherein the speeding condition is associated with a location and a speed; and

comparing the location and speed to the list.

8. The method of claim 7, further comprising:

if the location is included in the list, determining whether speed is above a corresponding posted speed in the list.

9. The method of claim 1, further comprising:

receiving a speeding violation notification message; and

comparing the speeding violation notification message to a list of corrected speed limits; and

conditionally forwarding the speeding violation message.

10. A speed-by-street database system comprising:

a database associating vehicle speed limitation information with geographical information;

a data communication interface that receives events from monitored vehicles; and

a database maintenance component to facilitate modification of speed limitation information for particular geographical information in the database using received events corresponding to the particular geographical information.

11. The speed-by-street database system of claim 10, wherein a received event includes information indicative of a speed and location of a monitored vehicle.

12. The speed-by-street database system of claim 11, wherein the database maintenance component facilitates modification of speed limitation information in the database by identifying locations associated with received events wherein the vehicle speed indicated by the received events surpasses a speed threshold indicated by speed limitation information in the database.