Vehicle route planning system

• US 5,172,321 A
• Filed: 12/10/1990
• Issued: 12/15/1992
• Est. Priority Date: 12/10/1990
• Status: Expired due to Term

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Ghaem, Sanjar, Doi, Randolph M., Kirson, Allan M.
• Primary Examiner(s): Black, Thomas G.
• Application Number:
  US07/625,188
• Time in Patent Office: 736 Days
• Field of Search: 364/443, 364/449, 364/444, 364/436, 340/990, 340/995
• US Class Current: 455/456.5
• CPC Class Codes: G01C 21/3446 Details of route searching algorithms, e.g. Dijkstra, A*, arc-flags, using precalculated routes
• CPC Class Codes: G01C 21/3492 employing speed data or traffic data, e.g. real-time or historical traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968
• CPC Class Codes: G08G 1/096827 where the route is computed onboard
• CPC Class Codes: G08G 1/096872 where instructions are given per voice

Abstract

A vehicle route planning system (10) has an in-vehicle route planning computer (12) which receives trip data, including at least one destination. Trip data is provided to the computer either by a wireless communication link between a remotely located radio transmitter (44) and an antenna (20) on the vehicle (11) or by a remotely located media writer device (46) writing the trip information on a removable storage media device (30) which is then provided to an in-vehicle media reader device (31). In this manner a vehicle operator may enter trip data into a remotely located apparatus (at 40) which translates this trip data into electrical signals that are then subsequently coupled to the in-vehicle route planning computer (12) which then uses this data for calculating at least one desired route for the vehicle to the specified destination via fixed road paths. Preferably the route planning system (10) is part of a vehicle navigation system (10). Preferably the system (10) utilizes radio receiver apparatus (20, 21) for transmitting the trip data to the in-vehicle route planning computer (12) wherein some of this radio receiver apparatus (20, 21) is also utilized to couple dynamic route traffic information, other than information specified by the vehicle operator, to the in-vehicle route planning computer (12).

Claims

1. Vehicle route planning system, comprising:

route planning means located in a vehicle for receiving trip data, including at least one destination, and calculating at least one desired route for the vehicle to the destination via fixed road paths, and

means coupled to said route planning means for providing said trip data to said route planning means;

wherein the improvement comprises said trip data providing means including data entry means located external to said vehicle for actuation by a person outside said vehicle, said data entry means, when actuated, receiving said trip data from said person and subsequently supplying said trip data to said route planning means, whereby said person can determine said trip data external to said vehicle and subsequently load said trip data into the route planning means.

2. Vehicle route planning system according to claim 1 wherein said trip data providing means includes a wireless communication link between said data entry means and said route planning means.

3. Vehicle route planning system according to claim 2 wherein said trip data providing means includes a radio transmitter and wherein said route planning means includes a radio receiver coupled to a route planning computer means.

4. Vehicle route planning system according to claim 3 wherein said radio receiver, in addition to coupling said trip data to said route planning computer means, also couples dynamic route information, other than information determined by said person, to said route planning computer means for use in planning said route to the destination.

5. Vehicle route planning system according to claim 4 wherein said radio receiver means includes circuitry for activating information storage means for storing received trip/route information in response to detecting the reception of such information by said radio receiver.

6. Vehicle route planning system according to claim 1 wherein said trip data providing means includes a reader means coupled to said route planning means for reading information stored on a carrier insertable into said reader means and wherein said data entry means includes means for storing said trip data on said carrier.

7. Vehicle route planning system according to claim 1 which includes a transmitter means attached to said vehicle, said transmitter means sending information signals to said data entry means for advising said person external to said vehicle as to reception of said trip data by said route planning means.

8. Vehicle route planning system according to claim 1 which includes route log means for providing information external to said vehicle concerning actual routes traveled by said vehicle.

9. Vehicle route planning system, comprising:

route planning means located in a vehicle for receiving trip data, including at least one destination, and calculating at least one desired route for the vehicle to the destination via fixed road paths, and

means coupled to said route planning means for providing said trip data to said route planning means;

wherein the improvement comprises said trip data providing means including data entry means located external to said vehicle for actuation by a person outside said vehicle, said data entry means, when actuated, receiving said trip data from said person, encoding said trip data as electrical signals external to said vehicle and subsequently supplying said trip data to said route planning means, whereby said person can determine said trip data external to said vehicle and subsequently load said trip data into the route planning means.

10. Vehicle route planning system according to claim 9 wherein said trip data providing means includes a wireless communication link between said data entry means and said route planning means for coupling said electrical signals to said route planning means.

11. Vehicle route planning system according to claim 10 wherein said trip data providing means includes a radio transmitter and wherein said route planning means includes a radio receiver coupled to a route planning computer means.

12. Vehicle route planning system according to claim 11 wherein said radio receiver, in addition to coupling said trip data to said route planning computer means, also couples dynamic route information, other than information specified by said person, to said route planning computer means for use in planning said route to the destination.

13. Vehicle route planning system according to claim 11 wherein said radio receiver means includes circuitry for activating information storage means for storing received trip/route information in response to detecting the reception of such information by said radio receiver.

14. Vehicle route planning system according to claim 9 wherein said trip data providing means includes a reader means coupled to said route planning means for reading information stored on a carrier insertable into said reader means and wherein said data entry means includes means for storing said trip data on said carrier as stored magnetic/electrical signals.

15. Vehicle navigation system, comprising:

route planning means located in a vehicle for receiving trip data, including at least one destination, and calculating at least one desired route for the vehicle to the destination via fixed road paths, and

means coupled to said route planning means for providing said trip data to said route planning means; and

navigation means coupled to said route planning means for providing verbal/visual navigation instructions to a vehicle operator for implementing said calculated route for said vehicle;

wherein the improvement comprises said trip data providing means including data entry means located external to said vehicle for actuation by a person outside said vehicle, said data entry means, when actuated, receiving said trip data from said person, encoding said trip data as electrical signals external to said vehicle, and subsequently supplying said trip data to said route planning means, whereby said person can determine said trip data external to said vehicle and subsequently load said trip data into the route planning means.

16. Vehicle navigation system according to claim 15 wherein said trip data providing means includes a wireless communication link between said data entry means and said route planning means.

17. Vehicle navigation system according to claim 16 wherein said trip data providing means includes a radio transmitter and wherein said route planning means includes a radio receiver coupled to a route planning computer means.

18. Vehicle route planning system, comprising:

route planning means located in a vehicle for receiving trip data, including at least one destination, and calculating at least one desired route for the vehicle to the destination via fixed road paths, and

means coupled to said route planning means for providing said trip data to said route planning means;

wherein the improvement comprises said trip data providing means including trip data receiving means internal to said vehicle for receiving said trip data in the form of signals created external to said vehicle and subsequently supplying said trip data to said route planning means, whereby a person can create trip data signals external to said vehicle and subsequently load said trip data signals into the route planning means.

19. Vehicle route planning system according to claim 18 wherein said trip data receiving means includes a wireless communication receiver for receiving said trip data signals, and wherein said wireless receiver means includes circuitry for activating information storage means for storing said received trip data signals in response to detecting the reception of such signals by said wireless receiver means.

20. Vehicle route planning system according to claim 18 wherein said trip data receiving means includes a reader means coupled to said route planning means for reading information stored on a carrier insertable into said reader means.