System for autonomous cooperative control of multiple machines

• US 20070129869A1
• Filed: 12/06/2005
• Published: 06/07/2007
• Est. Priority Date: 12/06/2005
• Status: Abandoned Application

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Gudat, Adam, Brown, Bryan
• Application Number:
  US11/294,357
• Publication Number:
  US 20070129869A1
• Time in Patent Office: Days
• US Class Current: 701/50
• CPC Class Codes: G05D 1/0297 by controlling means in a control room

Abstract

A control system for a host work machine operating at a worksite with one or more other work machines is disclosed. The control system has a communication device operatively connected to the host work machine, and a controller. The controller has stored in a memory thereof one or more parameters associated with a predetermined task and is configured to autonomously control the host work machine to perform the predetermined task. Upon the host work machine encountering a need for assistance, the controller is further configured to communicate a request for assistance to at least one of the one or more other work machines via the communication device.

Claims

1. A control system for a host work machine operating at a worksite with one or more other work machines, comprising:

a communication device operatively connected to the host work machine; and

a controller having stored in a memory thereof one or more parameters associated with a predetermined task and being configured to;

autonomously control the host work machine to perform the predetermined task; and

upon the host work machine encountering a need for assistance, communicate a request for assistance to at least one of the one or more other work machines via the communication device.

2. The control system of claim 1, wherein the controller is further configured to autonomously control the host work machine to continue performing the predetermined task after receiving the needed assistance.

3. The control system of claim 1, wherein the controller is further configured to communicate one or more parameters associated with the needed assistance to the at least one of the one or more other work machines.

4. The control system of claim 1, wherein:

the controller is further configured to compare one or more parameters associated with the needed assistance to a list of capabilities associated with the one or more other work machines and stored within a memory of the controller; and

the request for assistance is communicated in response to the comparison.

5. The control system of claim 1, wherein the controller is further configured to re-communicate the request for assistance if no response is received within a predetermined period of time following the communication of a request for assistance.

6. The control system of claim 5, wherein the re-communication includes an urgency parameter.

7. The control system of claim 1, wherein the controller is further configured to:

receive a request for assistance from at least one of the one or more other work machines at the worksite;

receive one or more parameters associated with the assistance requested by the at least one of the one or more other work machines;

compare the one or more parameters associated with the assistance requested by the at least one of the one or more other work machines to a list of capabilities associated with the host work machine and stored within a memory of the controller; and

communicate to the at least one of the one or more other work machines an ability to assist the at least one of the one or more other work machines, if the comparison indicates that the host work machine is capable of providing the assistance requested by the at least one of the one or more other work machines.

8. The control system of claim 7, wherein:

the controller includes a scheduled list of operations stored within the memory of the controller, the operations being scheduled for completion by the host work machine in association with the predetermined task; and

the controller is further configured to;

determine an available time slot within the scheduled list of operations; and

provide the requested assistance during the available time slot.

9. The control system of claim 8, wherein the controller is further configured to interrupt completion of the predetermined task to provide the assistance requested by the at least one of the one or more other work machines.

10. The control system of claim 9, wherein the controller is further configured to interrupt completion of the predetermined task only after completion of a current operation.

11. The control system of claim 9, wherein the controller is further configured to interrupt completion of a current operation only after receiving an additional communication from the at least one of the one or more other work machines indicating that no assistance has been received within a predetermined period of time.

12. A control system for a host work machine operating at a worksite, comprising:

a communication device operatively connected to the host work machine; and

a controller having stored in a memory thereof a list of capabilities associated with the host work machine and being configured to;

receive a request for assistance from another work machine at the same worksite;

receive one or more parameters associated with the requested assistance;

compare the one or more parameters to the list of capabilities; and

communicate to the other work machine an ability to assist the other work machine, if the comparison indicates that the host work machine is capable of providing the requested assistance.

13. The control system of claim 12, wherein the controller is further configured to:

determine an available time slot within a list of operations scheduled for completion by the host work machine in association with a predetermined task; and

provide the requested assistance during the available time slot.

14. The control system of claim 13, wherein the controller is further configured to interrupt completion of the predetermined task to provide the requested assistance.

15. The control system of claim 14, wherein the controller is configured to interrupt completion of the predetermined task only after completion of a current operation by the host work machine.

16. The control system of claim 14, wherein the controller is configured to interrupt completion of a current operation by the host work machine only after receiving an additional communication from the other work machine indicating that no assistance has been received within a predetermined period of time.

17. A method of autonomously controlling a first work machine at a worksite, comprising:

receiving one or more parameters associated with a predetermined task;

autonomously controlling the first work machine to perform the predetermined task; and

upon encountering a need for assistance, autonomously communicating a request for assistance to at least a second work machine at the worksite.

18. The method of claim 17, further including autonomously controlling the first work machine to continue performing the predetermined task after receiving the requested assistance.

19. The method of claim 17, further including autonomously communicating one or more parameters associated with the needed assistance to the at least a second work machine.

20. The method of claim 17, further including comparing one or more parameters associated with the needed assistance to a list of capabilities associated with the at least a second work machines and stored within a memory of the controller, wherein the request for assistance is communicated in response to the comparison.

21. The method of claim 17, further including re-communicating the request for assistance if no assistance is received within a predetermined period of time following the communication of a request for assistance.

22. The method of claim 21, wherein the re-communication includes an urgency parameter.

23. The method of claim 17, further including:

autonomously receiving a request for assistance from the at least a second work machine;

autonomously receiving one or more parameters associated with the assistance requested by the at least a second work machine;

autonomously comparing the one or more parameters associated with the assistance requested by the at least a second work machine to a list of capabilities associated with the first work machine; and

autonomously communicating to the at least a second work machine an ability to provide the assistance requested by the at least a second work machine if the comparison indicates that the first work machine is capable of providing the assistance requested by the at least a second work machine.

24. The method of claim 23, further including:

autonomously determining an available time slot within a list of operations scheduled for completion by the first work machine in association with the predetermined task; and

providing the assistance requested by the at least a second work machine during the available time slot.

25. The method of claim 24, further including autonomously interrupting completion of the predetermined task to autonomously provide the assistance requested by the at least a second work machine.

26. The method of claim 25, further including autonomously interrupting completion of the predetermined task only after completion of a current operation by the first work machine.

27. The method of claim 25, further including autonomously interrupting completion of a current operation by the first work machine only after receiving an additional communication from the at least a second work machine indicating that no assistance has been received within a predetermined period of time.

28. A method of autonomously controlling a host work machine operating at a worksite with at least one other work machine, comprising:

autonomously receiving a request for assistance from the at least one other work machine;

autonomously receiving one or more parameters associated with the assistance requested by the at least one other work machine;

autonomously comparing the one or more parameters to a list of capabilities associated with the host work machine; and

autonomously communicating to the at least one other work machine an ability to provide the requested assistance if the comparison indicates that the host work machine is capable of providing the requested assistance.

29. The method of claim 28, further including:

autonomously determining an available time slot within a list of operations scheduled for completion by the host work machine in association with a predetermined task; and

autonomously providing the requested assistance during the available time slot.

30. The method of claim 29, further including autonomously interrupting completion of the predetermined task to provide the requested assistance.

31. The method of claim 30, further including interrupting completion of the predetermined task of the host work machine only after completion of a current operation by the host work machine.

32. The method of claim 30, wherein the controller is configured to interrupt completion of a current operation of the host work machine only after receiving an additional communication from the at least one other work machine indicating no assistance has been received within a predetermined period of time.

33. A host work machine operating at a worksite with one or more other work machines comprising:

an implement system;

a drive system;

a communication system; and

a control system having a controller in communication with the implement, drive, and communication systems, the controller being configured to;

receive one or more parameters associated with a predetermined task;

autonomously control operation of at least one of the implement system and the drive system to perform the predetermined task;

upon the host work machine encountering a need for assistance, communicate via the communication system a request for assistance;

control the host work machine to continue performing the predetermined task after receiving the needed assistance;

receive a request for assistance from the at least one of the one or more other work machines;

receive one or more parameters associated with the assistance requested by the at least one of the one or more other work machines;

compare the one or more parameters associated with the assistance requested by the at least one of the one or more other work machines to a list of capabilities associated with the host work machine; and

communicate to the at least one of the one or more other work machines an ability to provide the assistance requested by the at least one of the one or more other work machines, if the comparison indicates that the host work machine is capable of providing the assistance requested by the at least one of the one or more other work machines.

34. The host work machine of claim 33, wherein:

the controller is further configured to compare one or more parameters associated with the assistance needed by the host work machine to a list of capabilities associated with the at least one of the one or more other work machines and stored within a memory of the controller; and

the request for assistance is communicated in response to the comparison.

35. The host work machine of claim 33, wherein the controller is further configured to re-communicate the request for assistance if no response is received within a predetermine period of time following the communication of a request for assistance.

36. The host work machine of claim 33, wherein the controller is further configured to:

determine an available time slot within a list of operations scheduled for completion by the host work machine in association with the predetermined task; and

communicate the available time slot to the at least one of the one or more other work machines.

37. The host work machine of claim 36, wherein the controller if further configured to interrupt completion of the predetermined task to provide the assistance requested by the at least one of the one or more other work machines.

38. The host work machine of claim 37, wherein the controller is further configured to interrupt completion of the predetermined task only after completion of a current operation by the host work machine.

39. The work machine of claim 37, wherein the controller is further configured to interrupt completion of a current operation by the host work machine only after receiving an additional communication from the at least one of the one or more other work machines indicating that no assistance has been received within a predetermined period of time.