Method of functional control of an inertial platform of a moving craft
First Claim
1. A method of verifying the functioning of an inertial unit for a moving body, the unit being mounted on a movement simulator and supplying in real time measurement inertial data representing a movement applied by said movement simulator, the method comprising:
- theoretical modeling of the inertial unit onboard the movement simulator, said theoretical modeling being fed in real time with kinematic data actually executed by the movement simulator and supplying in real time theoretical inertial data representing said measurement inertial data deemed to be measured by the inertial unit on the movement simulator;
simulation modeling comprising modeling of the inertial unit in a real navigation environment, the simulation modeling being fed in real time with control commands and supplying in real time simulation inertial data representing output data from the inertial unit in said real navigation environment, said simulation modeling taking account of said control commands to compute a path of the moving body using the inertial unit;
calculating said control commands as a function of the inertial data defined by the sum of the measurement inertial data plus the simulation inertial data minus the theoretical inertial data; and
validating the inertial unit by comparing the path of the moving body obtained using the inertial unit with a predetermined reference path.
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Abstract
A method for verifying an inertial unit for a moving body, the unit being mounted on a movement simulator, and the method includes: theoretical modeling of the inertial unit on the movement simulator, supplying theoretical inertial data representing measurement inertial data deemed to be measured by the inertial unit; simulation modeling including modeling of the inertial unit in a real navigation environment, the simulation modeling being fed with control commands and supplying simulation inertial data representing output data from the inertial unit in real navigation environment; calculating control commands as a function of the measurement inertial data, the simulation inertial data, and the theoretical inertial data; and validating the inertial unit by comparing the path of the moving body with a reference path.
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Citations
13 Claims
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1. A method of verifying the functioning of an inertial unit for a moving body, the unit being mounted on a movement simulator and supplying in real time measurement inertial data representing a movement applied by said movement simulator, the method comprising:
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theoretical modeling of the inertial unit onboard the movement simulator, said theoretical modeling being fed in real time with kinematic data actually executed by the movement simulator and supplying in real time theoretical inertial data representing said measurement inertial data deemed to be measured by the inertial unit on the movement simulator; simulation modeling comprising modeling of the inertial unit in a real navigation environment, the simulation modeling being fed in real time with control commands and supplying in real time simulation inertial data representing output data from the inertial unit in said real navigation environment, said simulation modeling taking account of said control commands to compute a path of the moving body using the inertial unit; calculating said control commands as a function of the inertial data defined by the sum of the measurement inertial data plus the simulation inertial data minus the theoretical inertial data; and validating the inertial unit by comparing the path of the moving body obtained using the inertial unit with a predetermined reference path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for verifying the functioning of an inertial unit for a moving body, the unit being mounted on a movement simulator and supplying in real time measurement inertial data representing a movement applied by said movement simulator, the system comprising:
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a theoretical model comprising modeling of the inertial unit onboard the movement simulator, the theoretical model being fed in real time with kinematic data actually executed by the movement simulator and supplying in real time theoretical inertial data representing said measurement inertial data deemed to be measured by the inertial unit on the movement simulator; a simulation model comprising modeling of the inertial unit in a real navigation environment, the simulation model being fed in real time with control commands and supplying in real time simulation inertial data representing output data from the inertial unit in said real navigation environment, said simulation model taking account of said control commands to compute a path of the moving body using the inertial unit; calculation means for calculating said control commands as a function of the inertial data defined by the sum of the measurement inertial data plus the simulation inertial data minus the theoretical inertial data; and validation means for validating the inertial unit by comparing the path of the moving body obtained using the inertial unit with a predetermined reference path. - View Dependent Claims (11, 12, 13)
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Specification