IP Library Granted Patent US 9,046,371
Granted Patent B2
US 9,046,371 · App. 13/853,934 · Granted Jun 2, 2015

Contention avoidance

Inventors: William Casson (Tucson, AZ); Lucas Van Latum (Tucson, AZ); Michael Lewis (Tucson, AZ)
Assignee: Modular Mining Systems, Inc.
G01C21/00G05D2201/021G08G1/20G05B2219/45004B60W2550/14
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Quick Facts
Patent No.
US 9,046,371
App. No.
13/853,934
Granted
Jun 2, 2015
Kind
B2
Abstract

A system and method for navigating a vehicle through a mining environment to a target destination is presented. The system and method may be utilized to avoid contention in the mining environment. A route through the mining environment to the target destination for the vehicle is identified and a first speed profile for at least a portion of the route is determined. A potential contention condition associated with the route is identified and the potential contention condition along the route is used to determine a second speed profile for at least a portion of the route. An optimized speed profile is determined using the first speed profile and the second speed profile, and at least a portion of the optimized speed profile is communicated to the vehicle.

Claims (46)

1. A method of navigating a first vehicle through a mining environment to a target destination, comprising:

identifying a route through the mining environment to the target destination for the first vehicle;

accessing a vehicle dynamics model database to identify one or more performance attributes for the first vehicle;

determining a first speed profile for at least a portion of the route using the one or more performance attribute for the first vehicle and the route;

accessing a fleet profile database to identify a location, an allocated speed profile, and an assigned route for a plurality of vehicles in the mining environment;

for each vehicle in the plurality of vehicles, analyzing the location, the allocated speed profile and the assigned route to identify one or more potential contention conditions associated with the route;

using the one or more potential contention conditions along the route to determine a second speed profile for at least a portion of the route;

determining an optimized speed profile using the first speed profile and the second speed profile; and

at least one of:

accessing a speed interface controller in the first vehicle to control a speed of the first vehicle in accordance with the optimized speed profile, and

communicating at least a portion of the optimized speed profile to a human machine interface in the first vehicle for display to an operator of the vehicle.

2. The method of claim 1 , wherein the first speed profile is a maximum speed profile.

3. The method of claim 1 , wherein the second speed profile is a minimum acceptable speed profile, where the minimum acceptable speed profile accounts for the potential contention condition.

4. The method of claim 1 , wherein the vehicle is a haul truck and the optimized speed profile is determined using a scoring function that optimizes a cost per ton of material transported of the vehicle.

5. The method of claim 1 , where the potential contention condition is an occupied resource contention.

6. The method of claim 1 , wherein the potential contention condition is a roadway contention or an occupied intersection.

7. A system, comprising:

a fleet profile database configured to store at least one of a current location, a velocity, an assigned route, and an allocated speed profile for a plurality of vehicles operating in a mining environment;

a processor configured to:

identify a route through a mining environment to a target destination for a first vehicle;

determine a first speed profile for at least a portion of the route;

for each vehicle in the plurality of vehicles, analyze the at least one of the current location, the velocity, the assigned route, and the allocated speed profile to identify one or more potential contention conditions associated with the route;

use the one or more potential contention conditions along the route to determine a second speed profile for at least a portion of the route;

determine an optimized speed profile using the first speed profile and the second speed profile; and

at least one of:

access a speed interface controller in the first vehicle to control a speed of the first vehicle in accordance with the optimized speed profile, and

communicate at least a portion of the optimized speed profile to a human machine interface in the first vehicle.

8. The system of claim 7 , wherein the first speed profile is a maximum speed profile.

9. The system of claim 7 , wherein the second speed profile is a minimum acceptable speed profile, where the minimum acceptable speed profile accounts for the potential contention condition.

10. The system of claim 7 , wherein the vehicle is a haul truck and the optimized speed profile is determined using a scoring function that optimizes a cost per ton of material transported of the vehicle.

11. The system of claim 7 , where the potential contention condition is an occupied resource contention.

12. The system of claim 7 , wherein the potential contention condition is a roadway contention or an occupied intersection.

13. A non-transitory computer-readable medium containing instructions that, when executed by a processor, cause the processor to perform the steps of:

identifying a route through a mining environment to a target destination for a first vehicle;

determining a first speed profile for at least a portion of the route;

accessing a fleet profile database to identify at least one of a location, an allocated speed profile, and an assigned route for a plurality of vehicles in the mining environment;

for each vehicle in the plurality of vehicles, analyzing the at least one of the location, the allocated speed profile and the assigned route to identify one or more potential contention conditions associated with the route;

using the one or more potential contention conditions along the route to determine a second speed profile for at least a portion of the route;

determining an optimized speed profile using the first speed profile and the second speed profile; and

at least one of:

accessing a speed interface controller in the first vehicle to control a speed of the first vehicle in accordance with the optimized speed profile, and

communicating at least a portion of the optimized speed profile to a human machine interface in the first vehicle for display to an operator of the vehicle.

14. The medium of claim 13 , wherein the first speed profile is a maximum speed profile.

15. The medium of claim 13 , wherein the second speed profile is a minimum acceptable speed profile, where the minimum acceptable speed profile accounts for the potential contention condition.

16. The medium of claim 13 , wherein the vehicle is a haul truck and the optimized speed profile is determined using a scoring function that optimizes a cost per ton of material transported of the vehicle.

17. The medium of claim 13 , where the potential contention condition is an occupied resource contention, a roadway contention, or an occupied intersection.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2013
From: CASSON, WILLIAM; VAN LATUM, LUCAS; LEWIS, MICHAEL W.
To: MODULAR MINING SYSTEMS, INC.
Reel/Frame 030894/0440 →
Continuity (1)
Related Publication 20140297182A1 · Oct 2, 2014