METHOD OF DETERMINING LOCATION OF MACHINE

• US 20160109583A1
• Filed: 12/29/2015
• Published: 04/21/2016
• Est. Priority Date: 12/29/2015
• Status: Abandoned Application

• Current Assignee: Clarus Glassboards, LLC
• Original Assignee: Caterpillar Incorporated
• Inventors: Willis, Frank
• Application Number:
  US14/981,971
• Publication Number:
  US 20160109583A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: G01S 19/49 whereby the further system is an inertial position system, e.g. loosely-coupled

Abstract

A method of determining a location of a machine is provided. The method includes determining a location of the machine based on the signals received from an IMU at each of a plurality of unit time. The method also includes determining a location of the machine corresponding to a first unit time based on signals received from the satellite positioning unit at a second unit time. The method includes determining an error associated with the location of the machine, by a processing unit, based on the location determined by the satellite positioning unit and the location determined based on the signals received from the IMU at a unit time successive to the first unit time. The method also includes adding the error to the location of the machine determined based on the signals received from the IMU at a successive unit time to the second unit time.

Claims

1. A method of determining a location of a machine, the method comprising:

receiving signals from an Inertial Measurement Unit (IMU) at each of a plurality of unit time;

determining a location of the machine based on the signals received from the IMU;

triggering a satellite positioning unit of the machine at a first unit time;

determining a location of the machine corresponding to the first unit time based on signals received from the satellite positioning unit at a second unit time;

determining an error associated with the location of the machine, by a processing unit, based on the location determined by the satellite positioning unit and the location determined based on the signals received from the IMU at a unit time successive to the first unit time; and

adding the error to the location of the machine determined based on the signals received from the IMU at a successive unit time to the second unit time.