Systems and methods for determining movement of a hand-held controller (HHC) with respect to a head-mounted display (HMD) are described. A camera is located at a lower region of the HMD for capturing images of the HHC. The images of the HHC are used to determine a position and an orientation of the HHC with reference to the HMD. Also, the camera or another camera can be used to determine a position and orientation of the HMD with respect to a real-world environment. The position and orientation of the HMD and the position and orientation of the HHC are used to change to state of an application executed on a game cloud.

The present invention relates to a spatial coordinate positioning system, particularly to a spatial coordinate positioning system which is capable of measuring a position of spatial positioning target in high-precision by calculating spatial coordinates of assistant point stations at a predetermined interval on the basis of a coordinate of a ground base point station and distance information between the assistant point stations in a space where the plurality of assistant point stations are installed of which coordinates were unknown.

The present invention relates to a spatial coordinate positioning system, particularly to a spatial coordinate positioning system which is capable of measuring a position of spatial positioning target in high-precision by calculating spatial coordinates of assistant point stations at a predetermined interval on the basis of a coordinate of a ground base point station and distance information between the assistant point stations in a space where the plurality of assistant point stations are installed of which coordinates were unknown.

A measuring device including a support base, a movable arm, having an extension prevailing along a longitudinal direction and rotatable with respect to the support base along a rotation axis skewed with respect to the longitudinal direction, a probe constrained to the movable arm, apparatus for measuring oscillation of the movable arm, first magnet including at least one first magnetic element constrained to the movable arm, at least one second magnetic element constrained to the support base and not oscillating with the movable arm, the first magnetic element and the second magnetic element reciprocally movable along a movement trajectory having prevailing extension along the longitudinal direction, the first magnetic element and the second magnetic element exerting magnetic force on each other in at least one position along the movement trajectory.

The present invention relates to a shape measurement apparatus comprising: a driving body 130; a measurement arm part 110 having a stylus 111 coming into contact with an object to be measured, and an arm 113 for supporting the stylus 111 so that the stylus 111 comes into contact with the object to be measured; a measurement arm support part 120 coupled to an end of the arm 113; a pivot 121 for rotatably supporting the measurement arm support part 120 with respect to the driving body 130; and an actuator part 140 for controlling the measurement arm support part 120 to rotate up and down with respect to the pivot 121 so that the stylus 111 moves along the object to be measured. The actuator part 140 comprises: a casing 141 partitioned into an upper space and a lower space by a partition wall 141a; an arm coupling base 142 for connecting the casing and the measuring arm support part 120; an upper actuator 143 provided in the upper space; and a lower actuator 145 provided in the lower space, wherein the upper actuator and the lower actuator 145 each comprise: magnetic coupling plates 143a, 145a; first magnets 143b, 145b provided in an upper portion of the magnetic coupling plates 143a, 145a; second magnets 143c, 145c provided in a lower portion of the magnetic coupling plates 143a, 145a; and coils 143d, 145d coupled to the arm coupling base 142 and surrounding the magnetic coupling plates 143a, 145a.

A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed. In a turbine including casings, recesses and protrusions on flange surfaces of the casings are measured at measurement intervals M set on the basis of the entire length L of flange portions in an axial direction, the number of bolts N joining the flange portions, and intervals between the bolts in the axial direction of the flange portions.

Provided is a reference point indicating apparatus, which is comprises an equilateral parallelogram being formed with rotatable link points, contacts provided at tips of extending portions obtained by extending respective sides of the equilateral parallelogram, a link plate for linking between middle points of one set of opposing sides of the equilateral parallelogram, and an indicator provided on the link plate, wherein the contacts are capable of abutting on an object by expansion and contraction of the equilateral parallelogram, wherein the indicator is configured to indicate a reference point of the object in a state where the contacts abut on the object.

Provided is a reference point indicating apparatus, which is comprises an equilateral parallelogram being formed with rotatable link points, contacts provided at tips of extending portions obtained by extending respective sides of the equilateral parallelogram, a link plate for linking between middle points of one set of opposing sides of the equilateral parallelogram, and an indicator provided on the link plate, wherein the contacts are capable of abutting on an object by expansion and contraction of the equilateral parallelogram, wherein the indicator is configured to indicate a reference point of the object in a state where the contacts abut on the object.

The present invention discloses a quasi-zero-stiffness (QZS) based six-degree-of-freedom (6-DOF) absolute displacement and attitude measurement device. A lower end coil and an upper end coil are respectively charged with currents in the opposite directions; The electromagnetic field and the magnetic fields of an upper magnet and a lower magnet per se are mutually acted to produce an electromagnetic stiffness opposite to the stiffness of a spring. The stiffness of the whole leg is close to zero stiffness. When the to-be-measured platform generates space motion, the reference platform is in the stationary state. At this point, the deformation amounts of the six legs can be measured by laser displacement sensors. The six deformation amounts are respectively inputted into the displacement and attitude resolver, and by forward kinematic solution of the 6-DOF device, the displacement and the attitude of the to-be-measured platform can be obtained.

A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed. In a turbine including casings, recesses and protrusions on flange surfaces of the casings are measured at measurement intervals M set on the basis of the entire length L of flange portions in an axial direction, the number of bolts N joining the flange portions, and intervals between the bolts in the axial direction of the flange portions.