Device system and method for determining the relative orientation between two different locations

US10036799B2 · kind B2 · utility

Assignee

• Elbit Systems Ltd. · IL

Inventors

• Lior Avitan · Haifa, IL
• Mark Gandelsman · Haifa, IL
• Eugene Gurovich · Haifa, IL
• Yoav Ophir · Haifa, IL

Key dates

• Filing date: Mar 17, 2016
• Grant date: Jul 31, 2018
• Expiry date: Mar 17, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01P21/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device for determining relative orientation between two locations including an imager, an inertial-orientation-sensor firmly attached to the imager for determining information relating to the orientation thereof and which exhibits drift and a processor coupled with the imager and with the inertial-orientation-sensor. The processor determines a first orientation-measurement and first time-tag when the device is oriented with a first-orientation-indicator located at a first location. The processor determines a second-orientation-measurement and second time-tag when the device is oriented with a second-orientation-indicator located at a second location. The processor determines a third-orientation-measurement and third time-tag when the device is oriented again with the first-orientation-indicator. The processor determines the drift associated the inertial-orientation-sensor according to difference between the first-orientation-measurement and the third-orientation-measurement the respective time-tags associated therewith. The processor determines an angle-difference between the first-orientation-indicator and the second-orientation-indicator according to the first-orientation-measu…