System and method for managing access to a load resource having a loading machine

• US 5,925,081 A
• Filed: 12/19/1996
• Issued: 07/20/1999
• Est. Priority Date: 12/19/1996
• Status: Expired due to Term

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Koehrsen, Craig L., Hawkins, Mark R., Kemner, Carl A., Peterson, Joel L.
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Wyckoff, Tim
• Application Number:
  US08/774,942
• Time in Patent Office: 943 Days
• Field of Search: 701/24, 701/25, 701/26, 701/23, 701/50, 701/200, 701/205, 340/988, 340/989, 340/909, 180/167, 180/168, 180/169, 318/587
• 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

A system and method for managing access of at least one mobile machine to a load resource having a loading machine including a queue manager adapted to deliver a queue position request signal, a resource manager adapted to control access to the load resource, and a load manager adapted to determine a load point for a mobile machine.

Claims

1. A compressed air toy gun for firing projectiles comprising:

a launch tube adapted to hold a projectile, said launch tube having an end wall and an air opening extending through said end wall;

an air pump adapted to compress air;

a conduit in fluid communication with said air pump and said launch tube, said conduit having an exit end positioned adjacent said launch tube end wall; and

an elastic seal mounted to said exit end of said conduit, said seal having an opening therethrough generally aligned with said air opening of said launch tube end wall and having an outer surface facing said launch tube end wall, said seal being adapted to be stretched between a relaxed position generally separated from said launch tube end wall and a stretched position wherein said elastic seal is bellowed to a position wherein said outer surface is in contact with said launch tube end wall about said end wall air opening.

2. A system, as set forth in claim 1, wherein said resource manager is adapted to provide communications between said resource manager and said load manager.

3. A system, as set forth in claim 1, wherein said resource manager is adapted to determine a queue position in response to receiving said queue position request signal and communicating said queue position to a mobile machine in a first position of said queue.

4. A system, as set forth in claim 1, wherein said resource manager is adapted to deliver a queue position signal to said approaching mobile machine, said queue position signal including data disclosing a position of said load resource and a number of mobile machines in said queue.

5. A system, as set forth in claim 4, wherein said queue manager is adapted to calculate said queue position from said position of load resource and said number of mobile machines in said queue.

6. A system, as set forth in claim 1, wherein said resource manager is adapted to determine a configuration of said load resource.

7. A system, as set forth in claim 1, wherein said load resource includes an entry point, said first load point, and an exit point.

8. A system, as set forth in claim 1, wherein said load resource includes a second load point.

9. A system, as set forth in claim 8, wherein said load manager is adapted to determine said second load point.

10. A system, as set forth in claim 8, wherein a first mobile machine and a second mobile machine simultaneously access said first load point and said second load point respectively.

13. A system, as set forth in claim 1, wherein said resource manager is adapted to receive a loading complete signal from said load manager, and responsively deliver a depart load machine signal to a mobile machine located at said load point.

14. A system, as set forth in claim 1, wherein said load point includes a load point heading and position.

15. A system, as set forth in claim 14, wherein at least one of said resource manager and said load manager are adapted to determine a route from said queue to said load point.

16. A system, as set forth in claim 15, wherein said resource manager is adapted to communicate said route to said mobile machine in said first queue position.

17. A system, as set forth in claim 15, wherein at least one of said resource manager and said load manager includes a route planner for determining said route.

18. A system, as set forth in claim 1, wherein said resource manager is adapted to allow said mobile machine in said first position of said queue access to said load point in response to a condition of said load resource.

19. A system, as set forth in claim 1, wherein said load resource is a shovel loader.

20. A system, as set forth in claim 1, wherein said resource manager is adapted to selectively deliver a blocking signal to prevent mobile machines in said queue from accessing said load resource.

11. A compressed air toy gun for firing projectiles comprising:

a launch tube adapted to hold a projectile, said launch tube having an air entry;

pressurized air supply means for supplying a quantity of pressurized air;

a conduit in fluid communication with said pressurized air supply means and said launch tube, said conduit having an exit end positioned adjacent said launch tube entry; and

temporary sealing means for temporarily creating a seal between said conduit and said launch tube as air from said pressurized air supply means is conveyed through said conduit means into said launch tube, said temporary sealing means having an elastic member mounted to said exit end of said conduit, said elastic member having an opening therethrough generally aligned with said launch tube entry, said elastic member being adapted to be stretched between a relaxed position generally separated from said launch tube entry and a stretched position wherein said elastic member is bellowed to a position in contact with and about said launch tube entry.

12. A system, as set forth in claim 11, wherein said load manager is adapted to deliver said load point ready signal.

21. A compressed air toy gun for firing projectiles comprising:

a launch tube adapted to hold a projectile, said launch tube having an air opening therethrough;

a source of pressured air;

a conduit in fluid communication with said source of pressurized air and said launch tube, said conduit having an exit end positioned adjacent said launch tube air opening; and

an elastic seal mounted to said exit end of said conduit, said seal having an opening therethrough generally aligned with said air opening of said launch tube, said seal being adapted to be stretched between a relaxed position generally separated from said launch tube and a stretched position wherein said seal is bellowed to a position in contact with said launch tube about said air opening.

22. A method, as set forth in claim 21, wherein establishing and controlling said queue includes the step of controlling placement of said mobile machine in said queue in response to said mobile machine approaching said queue.

23. A method, as set forth in claim 21, including the step of communicating said load point to said mobile machine in said first queue position.

24. A method, as set forth in claim 21, including the step of determining said load resource configuration.

25. A method, as set forth in claim 21, including the step of determining the configuration of said load resource, said load resource having a first load point and a second load point.

26. A method, as set forth in claim 21, wherein controlling placement of said approaching 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.

27. A method, as set forth in claim 26, wherein communicating said queue position includes the steps of:

communicating an entry point position to said approaching mobile machine as a function of said queue and a determination of a number of mobile machines in said queue; and

determining said queue position from said entry point position and said number of mobile machines in said queue.

28. A method, as set forth in claim 21, wherein controlling placement of said approaching mobile machine in said queue includes the step of responsively determining a queue position based on said load resource entry point and a number of other mobile machines in said queue.

29. A method, as set forth in claim 21, including the steps of:

determining a route from said queue to said load point; and

communicating said route to said mobile machine in said first queue position.

30. A method, as set forth in claim 21, including the step of allowing said mobile machine in said first position of said queue to access said load point in response to a condition of said load resource.

31. A method, as set forth in claim 30, including the steps of:

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

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

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

32. A method, as set forth in claim 21, including the steps of:

receiving an arrive load point signal from said mobile machine; and

communicating a load mobile machine ready signal to said load manager.

33. A method, as set forth in claim 21, including the steps of:

receiving a loading complete signal from said load machine in response to completion of loading;

responsively generating and communicating a depart load point signal to said mobile machine;

receiving a leave load point signal from said mobile machine in response to said mobile machine leaving said load point; and

receiving a leave load resource signal from said mobile machine in response to said mobile machine leaving said load resource.

34. A method, as set forth in claim 33 wherein responsively generating and communicating a depart load point signal to said mobile machine includes the step of determining a route to said exit point.

35. A method, as set forth in claim 25, including the step of enabling a first and second mobile machine to access said resource simultaneously.