Patent ID: 9194977
Filing Date: 2015-11-24
Classification: A63B,B64G,B66C,G01C

Abstract:
1. A method for making a three dimensional simulator for a selectable simulated gravity field, comprising: providing a carriage comprising a cable extending from a spool of said cable, said cable being connectable to a load; providing a z-axis motor for said spool; providing an x-axis motor and a y-axis motor operable to move said carriage in an x-axis direction and a y-axis direction, respectively; providing an angle sensor to determine an angle of said cable with respect to a z-axis; providing a load sensor to detect a load force for said load on said cable and to responsively produce a load sensor signal; providing a cable length sensor to measure a length of said cable wherein said length extends from said spool; providing a vertical control system with a selectable off load target for said selectable simulated gravity field, said load sensor providing feedback for control of said z-axis motor to a digital non-linear filter comprising a first filter and a second filter with a higher cut off frequency than said first filter; providing a variable weighting factor by comparing a first output of said first filter with a second output of said second filter; calculating a first combination of said variable weighting factor with said first output of said first filter and a second combination of said variable weighting factor with said second output of said second filter; and computing an output of said digital non-linear filter using said first and second combinations.