Abstract:
PROBLEM TO BE SOLVED: To provide an autonomous flight control device and an autonomous flight control method for a small size unmanned helicopter capable of miniaturizing a helicopter body, and performing the autonomous flight control of the helicopter body along an arbitrary set track. SOLUTION: The autonomous flight control device 100 manufactured based on a model formula to indicate the dynamic characteristic of a helicopter body has a predictable feed-forward position control value acquisition unit 102 to compute the predictable feed-forward position control value based on a position control model in the model formula, and a position control value acquisition unit 103 to acquire the position control value by using the predictable feed-forward position control value. The control value of a servo motor to drive a rudder of the helicopter body based on the position control value is acquired, and the autonomous flight control of the helicopter body is performed along the set track. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a navigation system which allows location information of an airframe to a prescribed target point, to be precisely and quickly acquired without using ground equipment or a DGPS for guide control. SOLUTION: A navigation system 10 using image recognition is provided with; a stereo camera 11 for acquiring image information of a target point A; an inertial sensor 12 for measuring an attitude angle and an acceleration of the airframe; an image processing part 13 for obtaining a distance to the target point A by stereo processing of the image information; an image position calculation part 14 for calculating a relative position of the machine body to the target point A on the basis of the obtained distance to the target point A and the attitude angle; and a navigation arithmetic part 15 for generating and outputting navigation information by using the attitude angle, the acceleration, and the relative position. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a drive control device of a model helicopter, capable of controlling roll and pitch without any influence of phase shift of a roll axis and a pitch axis, even when a body rotates around a yaw axis.SOLUTION: The drive control device includes a yaw axis angular velocity detecting means and a main rotor speed detecting means. A phase control means determines a phase shift amount of the roll axis and the pitch axis due to the rotation around the yaw axis, from the detection values thus obtained, and corrects a roll operation signal and a pitch operation signal to control roll and pitch.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of completely, automatically and optimally controlling a drone from a moving state to a hovering state.SOLUTION: This method comprises steps of: (a) measuring horizontal linear speed, tilt angles, and angular speeds at the initial instant; (b) setting stopping time value; (c) on the basis of initial measurements and set stopping time, parameterizing a predetermined predictive function that models optimum continuous decreasing variation of horizontal linear speed as a function of time; (d) applying set point values to a loop for controlling motors of the drone, which values correspond to target horizontal linear speed precalculated from said parameterized predictive function; and (e) once hovering state has been reached, activating a hovering flight control loop for maintaining the drone at speed and tilt angle that are zero relative to the ground.