Load position display indicator for an excavation system

Patent metadata

Field	Value
Publication number	US-9868623-B1
Application number	US-201715405674-A
Country	US
Kind code	B1
Filing date	Jan 13, 2017
Priority date	Jan 13, 2017
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

A load position indicating system includes a portable, stand-alone computing device for use on the loader. The stand-alone computing device includes a display, a wireless communication interface configured for peer-to-peer direct communication with an electronic control unit (ECU) mounted onboard the hauler, and at least one controller configured to receive a signal indicative of a real time position of an actual center of gravity of a payload carried by the hauler, determine a real time position and orientation of the loader relative to the hauler, determine a target location for the center of gravity of the payload carried by the hauler, calculate a new loading position for a payload to be deposited by the loader onto the hauler based on a difference between the real time position of the actual center of gravity of the payload and the target location of the center of gravity, and display at least one of the new loading position for a payload, the target location for the center of gravity of the payload, and the real time position of the actual center of gravity of the payload on an image representative of the hauler as seen from a perspective of an operator on the loader.

First claim

What is claimed is:

1. A load position indicating system, comprising:
a first location device associated with a loader;
a second location device associated with a hauler;
a portable, stand-alone computing device for use on the loader, the stand-alone computing device including:
a display;
a wireless communication interface configured for peer-to-peer direct communication with an electronic control unit (ECU) mounted onboard the hauler; and
at least one controller in communication with the first location device, the second location device, the ECU, the wireless communication interface, and the display, the at least one controller being configured to:
receive a first signal from at least one of the second location device and the ECU indicative of a location and orientation of the hauler;
receive a second signal from the first location device indicative of a location and orientation of the loader;
receive a third signal indicative of a real time position of an actual center of gravity of a payload carried by the hauler;
determine a real time position and orientation of the loader relative to the hauler;
determine a target location for the center of gravity of the payload carried by the hauler;
calculate a new loading position for a payload to be deposited by the loader onto the hauler based on a difference between the real time position of the actual center of gravity of the payload and the target location of the center of gravity; and
display at least one of the new loading position for a payload, the target location for the center of gravity of the payload, and the real time position of the actual center of gravity of the payload on an image representative of the hauler as seen in real time from a perspective of an operator on the loader.

2. The load position indicating system of claim 1 , wherein the at least one controller is further configured to receive wirelessly at least the first signal from the ECU and additional information relevant to a loading operation from a central command server.

3. The load position indicating system of claim 2 , wherein the at least one controller is configured to wirelessly receive information from the central command server, wherein the information includes at least one of an identification of a hauler to be loaded by the loader, queuing information regarding a loading priority for a plurality of haulers to be loaded by the loader, and a preferred GPS location on one or more sides of the loader for spotting a hauler to receive a payload from the loader.

4. The load position indicating system of claim 1 , wherein the at least one controller is further configured to receive the third signal indicative of the real time position of the actual center of gravity of the payload carried by the hauler based on one or more signals indicative of a load being measured at one or more struts of the hauler.

5. The load position indicating system of claim 4 , wherein the at least one controller is further configured to send one or more signals to the display indicative of the real time position and orientation of the hauler as seen from the perspective of the operator on the loader, along with the third signal.

6. The load position indicating system of claim 5 , wherein the at least one controller is still further configured to send one or more signals to the display indicative of the new loading position for a payload.

7. The load position indicating system of claim 1 , wherein the at least one controller is further configured to:
receive hauler data from a memory, the hauler data including image data for a hauler; and
display the image data on the display in an orientation based on the determined real time position and orientation of the loader relative to the hauler.

8. The load position indicating system of claim 7 , wherein the hauler data includes image data specific to the actual model and type of hauler positioned in real time for loading by the loader.

9. The load position indicating system of claim 8 , wherein the at least one controller is further configured to display the new loading position for the payload on the image of the hauler in the form of a bullseye or other target symbol as seen from the perspective of an operator on the loader.

10. A method for indicating a real time position located on a hauler for placement of a payload from a loader, the method comprising:
receiving at a portable, stand-alone computing device on the loader a geographical location and orientation of the loader from a first location device associated with the loader;
receiving at the stand-alone computing device on the loader a geographical location and orientation of the hauler from at least one of a second location device associated with the hauler and an electronic control unit (ECU) mounted onboard the hauler;
receiving at the stand-alone computing device a signal indicative of a real time position of an actual center of gravity of a payload carried by the hauler;
determining, with a processor of the stand-alone computing device, a real time position and orientation of the loader relative to the hauler;
determining, with a processor of the stand-alone computing device, a target location of the center of gravity of the payload carried by the hauler;
calculating, with a processor of the stand-alone computing device, a new loading position for a payload to be deposited by the loader onto the hauler based on a difference between the real time position of the actual center of gravity of the payload carried by the hauler and the target location of the center of gravity; and
displaying on a display of the stand-alone computing device at least one of the new loading position for a payload, the target location of the center of gravity of the payload, and the real time position of the actual center of gravity of the payload on an image representative of the hauler as seen from a perspective of an operator on the loader.

11. The method of claim 10 , further including receiving wirelessly at least a first signal from the ECU and additional information relevant to a loading operation from a central command server.

12. The method of claim 11 , further including wirelessly receiving information from the central command server, wherein the information includes at least one of an identification of a hauler to be loaded by the loader, queuing information regarding a loading priority for a plurality of haulers to be loaded by the loader, and a preferred GPS location on one or more sides of the loader for spotting a hauler to receive a payload from the loader.

13. The method of claim 10 , wherein the signal indicative of the real time position of the actual center of gravity of the payload carried by the hauler is based on one or more signals indicative of a load being measured at one or more struts of the hauler.

14. The method of claim 13 , wherein the real time position and orientation of the hauler is displayed on the display of the stand-alone computing device as seen from the perspective of the operator on the loader.

15. The method of claim 14 , wherein the new loading position for a payload is displayed on the display of the stand-alone computing device as seen from the perspective of the operator on the loader.

16. The method of claim 10 , further including:
receiving hauler data from a memory, the hauler data including image data for a hauler; and
displaying the image data on the display of the stand-alone computing device in an orientation based on the determined real time position and orientation of the loader relative to the hauler.

17. The metho

Assignees

• Caterpillar Inc

Inventors

• Guy Christopher James

Classifications

• B66F9/12

  Platforms; Forks; Other load supporting or gripping members · CPC title

• B66F9/127

  Working platforms · CPC title

• B66F9/0755 Primary

  Position control; Position detectors · CPC title

• E02F9/2054 Primary

  Fleet management · CPC title