Three-dimension data input device

Abstract

Abstract PURPOSE:To input a 3-dimension data by measuring an acceleration and gravity change caused when an object is moved by a pressure sensor and applying multiple integral to the acceleration to obtain a relative position and measuring a change in the gravity direction to detect the rotation of the object. CONSTITUTION:When a spherical shell 11 is in standstill, outputs of pressure sensors 13-15 are taken as the initial state. In case of moving the spherical shell 11, a negative pressure fluctuation is caused in the moving direction in the inside of the spherical shell in proportion to the acceleration and a positive pressure fluctuation is caused in the opposite direction. The pressure fluctuation is measured by the sensors 13-15 to send a sensor output 16 to an arithmetic processing section 17. The processing section 17 obtains the direction of acceleration and the quantity of acceleration of the spherical shell by the vector sum of the sensor outputs 16 by the processing section 17. In applying multiple integral with respect to time to them, the moving direction and distance of the spherical shell are obtained and the data is outputted from a 2-dimension data output section 18. Moreover, the rotation of the shell is obtained from the pressure fluctuation in the inner face of the shell due to the change in the gravity acceleration direction by the rotation of the spherical shell.

Inventors

• 👤 Munetoshi Unuma
• 👤 Ryozo Takeuchi

Bibliographic Details