Method for transmitting traffic information about a traffic obstruction

• US 6,861,960 B2
• Filed: 03/29/2001
• Issued: 03/01/2005
• Est. Priority Date: 03/30/2000
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Hessing, Bernd, Schmidt, Heinrich
• Primary Examiner(s): Tweel, John
• Application Number:
  US09/821,332
• Publication Number:
  US 20010028314A1
• Time in Patent Office: 1,433 Days
• Field of Search: 340/995.1, 340/905, 340/995.13, 340/995.12, 701/200, 701/117, 701/118, 701/209, 701/210
• US Class Current: 340/995.1
• CPC Class Codes: G08G 1/092 Coding or decoding of the information

Abstract

The method of transmitting traffic information about a traffic obstruction on a traffic way with digital coded messages includes coding a coded location contained in a location data bank, which amounts to an approximate position of the traffic obstruction on the traffic way, and a section part of the traffic way between the coded location and an actual position of the traffic obstruction on the traffic way in a traffic message and then transmitting the traffic message. In addition the length of the traffic obstruction can be included in the traffic message. In a preferred embodiment the traffic message is a TMC traffic message coded with ALERT-C protocol. In which the section part is coded in label 12 and the length in label 2.

Claims

1. A method of transmitting traffic information about a traffic obstruction on a traffic way with digital coded messages, said method comprising the steps of:

a) coding a coded location designating a traffic-relevant point on the traffic way in a traffic message;

b) coding a section part of the traffic way extending from said coded location to an actual position of the traffic obstruction on the traffic way in the traffic message;

c) describing said section part in relation to a measure, and wherein said measure is a distance between said coded location on said traffic way and another coded location on said traffic way spaced from said coded location and said section part is described as a percentage of said measure; and

d) transmitting the traffic message.

2. The method as defined in claim 1, wherein said traffic-relevant point is an intersection of the traffic way or an exit from the traffic way.

3. The method as defined in claim 1, wherein said traffic message is a TMC traffic message coded with ALERT-C protocol, and further comprising coding said section part in label 15 of said TMC traffic message.

4. The method as defined in claim 1, wherein said traffic obstruction has a length and said position of said traffic obstruction corresponds to a beginning of said traffic obstruction, and further comprising coding said length of said traffic obstruction in said traffic message.

5. The method as defined in claim 4, wherein said traffic message is a TMC traffic message coded with ALERT-C protocol and said length of said traffic obstruction as coded in label 2 of said TMC traffic message.

6. The method as defined in claim 5, further comprising calculating an end position of the traffic obstruction on the traffic way from said length transmitted in said label 2.

7. The method as defined in claim 1, wherein said traffic obstruction has a length and said position of said traffic obstruction corresponds to a beginning of said traffic obstruction and further comprising calculating an end of the traffic obstruction from a transmitted event code in said traffic message.