Information processing method, information processing apparatus, and information processing system for acquiring an acceleration in a center direction
To provide an information processing method, an information processing apparatus, and an information processing system that enable a flight vehicle to easily perform circular turning. The information processing method of the present disclosure causes a computer to generate, on the basis of first information instructing a velocity of a moving body and second information instructing an angular velocity of the moving body, and with a direction of the velocity as a tangential direction, an acceleration in a center direction of a circle having a radius corresponding to the velocity and the angular velocity.
1 . An information processing method comprising:
receiving first information giving an instruction on a velocity of a moving body and second information giving an instruction on an angular velocity of the moving body;
setting a direction of the velocity of the moving body as a velocity in a tangential direction of a circle having a radius corresponding to the velocity of the moving body and the angular velocity of the moving body;
acquiring, directly on a basis of the instructed velocity of the moving body and the instructed angular velocity of the moving body, an acceleration in a center direction of the circle having the radius corresponding to the velocity of the moving body and the angular velocity of the moving body, the acquired acceleration being a product of the instructed velocity of the moving body and the instructed angular velocity of the moving body; and
controlling movement of the moving body on a basis of the acquired acceleration.
2 . The information processing method according to claim 1 , further comprising:
calculating a thrust of the moving body and an attitude of the moving body necessary for moving the moving body with the acquired acceleration, and
controlling the movement of the moving body on a basis of the thrust of the moving body and the attitude of the moving body that are calculated.
3 . The information processing method according to claim 1 , further comprising switching between:
a first mode in which the movement of the moving body is controlled on a basis of the acquired acceleration, and
a second mode in which the movement of the moving body is controlled on a basis of the first information giving the instruction on the velocity of the moving body and the second information giving the instruction on the angular velocity of the moving body.
4 . The information processing method according to claim 3 , wherein the acceleration is not acquired in the second mode.
5 . The information processing method according to claim 1 , further comprising increasing an acceleration to be applied to the moving body according to time using the acquired acceleration as a target acceleration.
6 . The information processing method according to claim 5 , further comprising decreasing the acceleration to be applied to the moving body according to time in a case where application of the acquired acceleration is stopped.
7 . The information processing method according to claim 6 , wherein, in the case where the application of the acquired acceleration is stopped, the acceleration has an absolute value of an amount of change per unit time, the absolute value being larger than an absolute value of an amount of change of the acceleration in a case where the acquired acceleration is applied.
8 . The information processing method according to claim 1 , wherein
the first information gives the instruction on the velocity of the moving body in a horizontal direction of the moving body,
the second information gives the instruction on the angular velocity of the moving body in the horizontal direction of the moving body, and
the acquired acceleration includes the acceleration in the horizontal direction of the moving body.
9 . The information processing method according to claim 1 , further comprising displaying at least one of an orbit of the circle or a center of the circle on a display device.
10 . The information processing method according to claim 1 , wherein the moving body includes a flight vehicle.
11 . The information processing method according to claim 1 , further comprising setting the center direction as a direction rotated by 90 degrees in a rotation direction from the tangential direction.
12 . The information processing method according to claim 1 , wherein acquiring the acceleration directly includes acquiring the acceleration from a look-up table in which the velocity of the moving body and the angular velocity of the moving body are associated with the acceleration.
13 . The information processing method according to claim 1 , wherein acquiring the acceleration includes acquiring the acceleration as an acceleration necessary for moving the moving body in the center direction.
14 . The information processing method according to claim 1 , wherein acquiring the acceleration includes acquiring the acceleration only from the velocity of the moving body and the angular velocity of the moving body.
15 . The information processing method according to claim 1 , wherein acquiring the acceleration directly includes inputting the velocity of the moving body and the angular velocity of the moving body into a function having the velocity and the angular velocity as input variables and the acceleration as an output variable.
16 . The information processing method according to claim 1 , wherein acquiring the acceleration directly includes calculating the product of the instructed velocity of the moving body and the instructed angular velocity of the moving body.
17 . An information processing apparatus comprising
processing circuitry configured to:
receive first information giving an instruction on a velocity of a moving body and second information giving an instruction on an angular velocity of the moving body;
set a direction of the velocity of the moving body as a velocity in a tangential direction of a circle having a radius corresponding to the velocity of the moving body and the angular velocity of the moving body;
acquire, directly on a basis of the instructed velocity of the moving body and the instructed angular velocity of the moving body, an acceleration in a center direction of the circle having the radius corresponding to the velocity of the moving body and the angular velocity of the moving body, the acquired acceleration being a product of the instructed velocity of the moving body and the instructed angular velocity of the moving body; and
control movement of the moving body on a basis of the acquired acceleration.
18 . An information processing system comprising:
a moving body; and
an operation terminal including processing circuitry configured to:
acquire first information giving an instruction on a velocity of the moving body and second information giving an instruction on an angular velocity of the moving body; and
transmit the first information and the second information, wherein the moving body includes processing circuitry configured to:
receive the first information giving the instruction on the velocity of the moving body and the second information giving the instruction on the angular velocity of the moving body;
set a direction of the velocity of the moving body as a velocity in a tangential direction of a circle having a radius corresponding to the velocity of the moving body and the angular velocity of the moving body;
acquire, directly on a basis of the instructed velocity of the moving body and the instructed angular velocity of the moving body, an acceleration in a center direction of the circle having the radius corresponding to the velocity of the moving body and the angular velocity of the moving body, the acquired acceleration being a product of the instructed velocity of the moving body and the instructed angular velocity of the moving body; and
control movement of the moving body on a basis of the acquired acceleration.