System and method for managing access of a fleet of mobile machines to a service resource

• US 5,961,560 A
• Filed: 12/19/1996
• Issued: 10/05/1999
• Est. Priority Date: 12/19/1996
• Status: Expired due to Term

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Kemner, Carl A.
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Donnelly, Arthur D.
• Application Number:
  US08/781,889
• Time in Patent Office: 1,020 Days
• Field of Search: 701/24, 701/29, 701/30, 701/32, 701/50, 340/989, 340/991, 340/992, 340/993, 340/994, 395/859
• US Class Current: 701/24
• CPC Class Codes: G05D 1/0236 in combination with a laser lasers per se H01S
• CPC Class Codes: G05D 1/027 comprising intertial navigation means, e.g. azimuth detector inertial navigation G01C21/16; inertial navigation combined with non-inertial navigation instruments G01C21/165
• CPC Class Codes: G05D 1/0278 using satellite positioning signals, e.g. GPS
• CPC Class Codes: G05D 1/0297 by controlling means in a control room

Abstract

The invention is a system and method for managing a service resource by a fleet of mobile machines. Each of the mobile machines has a queue manager adapted to generate a queue position request signal as the mobile machine approaches the service resource. A service manager is on each mobile machine, and is adapted to generate a service request signal in response to a condition of the mobile machine. A resource manager is adapted to establish and control a queue to control access to the resource in response to receiving a queue request position signal. The resource manager is also adapted to receive a service request signal, and responsively determine when to allow the mobile machine to access the service resource based on a condition of each of the mobile machine in the fleet.

Claims

1. A system for managing a service resource shared by at least one mobile machine, said service resource comprising:

a queue manager located on each of said at least one mobile machine, said queue manager generating a queue position request signal in response to one of said at least one mobile machine approaching said service resource;

a service manager located on each of said at least one mobile machine, said service manager generating service request signal in response to a condition of said mobile machine; and

a resource manager establishing and controlling a queue to control access to said service resource, said resource manager receiving said queue position request signal, said resource manager receiving said service request signal and allow said at least one mobile machine to access said service resource as a function of said condition of each of said at least one mobile machine.

2. A system, as set forth in claim 1, wherein said resource manager determining a configuration of said service resource.

3. A system, as set forth in claim 2, wherein said configuration of said service resource includes at least one entry point and at least one exit point.

4. A system, as set forth in claim 1, wherein said service request signal is generated in response to at least one parameter of said at least one mobile machine.

5. A system, as set forth in claim 1, wherein said service request signal includes data disclosing said condition of said mobile machine.

6. A system, as set forth in claim 1, wherein said service request signal includes data disclosing a current task of said mobile machine.

7. A system, as set forth in claim 1, wherein said determination to allow said at least one mobile machine access to said service resource is determined by a service scheduling strategy.

8. A system, as set forth in claim 7, wherein said determination to allow said at least one mobile machine access to said service resource includes assigning a priority to each of said mobile machines.

9. A system, as set forth in claim 1, wherein said resource manager to generating an access service resource signal and communicate said access service resource signal to said service manager.

10. A system, as set forth in claim 9, wherein said service manager receiving said access service resource signal.

11. A system, as set forth in claim 10, wherein said access service resource signal includes data disclosing when to access said service resource.

12. A system, as set forth in claim 1, wherein said resource manager determining a queue position in response to receiving said queue position request signal and communicating said queue position to said approaching mobile machine.

13. A system, as set forth in claim 1, wherein said resource manager delivering a queue position signal to said approaching mobile machine, said queue position signal including data disclosing the location of at least one entry point and a determination of a number of mobile machines in said queue, and wherein said queue manager determining said queue position in response to said queue position signal.

14. A system, as set forth in claim 1, wherein said resource manager selectively delivers a blocking signal to prevent mobile machines in said queue from accessing said service resource.

15. A method for managing a service resource shared by at least one mobile machine, including the steps of:

establishing and controlling a queue to control access to said service resource; and

determining to allow one of said at least one mobile machine to access said service resource as a function of a condition of each of said mobile machine.

16. A method, as set forth in claim 15, including the step of determining a configuration of said service resource.

17. A method, as set forth in claim 16, wherein determining said configuration includes the step of determining at least one entry point, and at least one exit point.

18. A method, as set forth in claim 15, including the step of generating a service request signal in response to a condition of said at least one mobile machine.

19. A method, as set forth in claim 15, including the step of receiving a service request signal from one of said at least one mobile machine.

20. A method, as set forth in claim 15, wherein said service request signal includes data disclosing a condition of said mobile machines.

21. A method, as set forth in claim 15, wherein the step of determining to allow one of said at least one mobile machines to access said service resource is performed by a service scheduling strategy.

22. A method, as set forth in claim 15, including the step of generating a access service resource signal and communicating said signal to said at least one mobile machines.

23. A method, as set forth in claim 15, wherein establishing and controlling said queue includes the step of controlling the placement of a mobile machine in said queue in response to said mobile machine approaching said queue.

24. A method, as set forth in claim 23, wherein controlling placement of said mobile machine includes the steps of:

receiving a queue position request signal from said approaching mobile machine;

responsively determining a queue position in said queue; and

communicating said queue position to said approaching mobile machine.

25. A method, as set forth in claim 24, wherein communicating said queue position includes the step of communicating data disclosing the location of at least one entry point, and a determination of the number of mobile machines in said queue.

26. A method, as set forth in claim 15, including the step of allowing a mobile machine in a first position of said queue to access said service resource in response to a condition of said service resource.

27. A method, as set forth in claim 26, including the steps of:

communicating a depart position signal to said mobile machine in response to determining to allow said queue to access said load point;

receiving a leave position signal from said mobile machine upon departure of said mobile machine from said first position of said queue; and

updating positions of other mobile machines in said queue in response to receiving said leave position signal.

28. A method, as set forth in claim 15, including the step of receiving an arrive service point signal from said mobile machine.

29. A method, as set forth in claim 15, including the step of enabling a first and a second mobile machine to access said resource simultaneously.