Tilt Calculation Device And Tilt Calculation Method

摘要

An object of the present invention is to provide a slope derivation device and a slope derivation method capable of accurately deriving an inclination of an indicator. The tilt derivation device according to the present invention is a tilt derivation device for deriving the inclination of a pen-shaped indicator, wherein the indicator includes a first electrode installed at one end in the axial direction and a second electrode installed around the axis, A sensor on a plane that detects the position of the first electrode and the position of the second electrode, and a control unit 10, wherein the control unit 10 is placed on the sensor from an orthogonal direction orthogonal to the sensor. The first input value corresponding to the value calculated based on the position of each of the first and second electrodes when tilted toward the first direction and the first correction value Θ _{1 which} is a correction value of the tilt of the axis The first look-up table 15A in which the corresponding relationship is registered, and the position of each of the first and second electrodes when the indicator is tilted toward a second direction different from the first direction on the sensor background A second lookup table 15B in which a corresponding relationship between a second input value corresponding to the calculated value and a second correction value Θ _{2 which} is a correction value of the tilt of the axis is registered, and each of the first and second electrodes An input calculation unit 14 that calculates an input value based on the position of and inputs the first and second lookup tables 15A and 15B as the first and second input values, and the first and second Based on the position of each of the two electrodes, a rotation angle calculator 16 for deriving a rotation angle Φ of the axis from the first direction toward the second direction, the rotation angle Φ and the first And an inclination direction inclination correction value calculation unit for calculating a correction value (θ _c ) of an inclination inclination which is an inclination of the axis from the orthogonal direction toward the inclined direction from the second correction values Θ ₁ and Θ ₂ . It provides a slope derivation device having a (17).