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Handheld force feedback device and method for realizing force sense reproduction using the device

A force feedback, handheld technology, applied in the direction of manipulators, program control manipulators, manufacturing tools, etc., can solve the problems of poor practicability and achieve the effect of strong practicability and avoiding fatigue

Inactive Publication Date: 2017-12-19
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of poor practicability of existing force feedback devices, the present invention provides a hand-held force feedback device and a method for realizing force sense reproduction using the device

Method used

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  • Handheld force feedback device and method for realizing force sense reproduction using the device
  • Handheld force feedback device and method for realizing force sense reproduction using the device
  • Handheld force feedback device and method for realizing force sense reproduction using the device

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Embodiment Construction

[0018] refer to Figure 1-2 . In the mechanical device of the hand-held force feedback device, the torque motor drives the rocker for finger grasping, and the rocker is equipped with a force sensor to measure the grasping force of the finger. The torque motor is coaxially fixed with an encoder for measuring angular displacement. The force feedback device provides the two signals of the angular displacement measured by the encoder and the force signal of the rocker to the microcontroller for data collection through signal conditioning and data conversion interfaces. The microcontroller converts the angular displacement signal into a certain format and outputs it to the remote end through the first signal output circuit for the remote end to obtain information from the manipulator. The second signal output of the microcontroller realizes the given control signal to the torque motor.

[0019] In the mechanical device of the force feedback device, the reproduction of the local ...

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Abstract

The invention discloses a handheld force feedback device and a force sense reproduction method using the same, and aims to solve the technical problem that an existing force feedback device is poor in practicability. According to the technical scheme, the handheld force feedback device comprises a mechanical device, a signal conditioning circuit, a data acquisition module, a microcontroller, a first signal output circuit and a second signal output circuit. Force information of piezoelectric film sensors distributed on a rocking bar arranged on the mechanical device is measured, a rotation angle digital value, of a torque motor, on an encoder is recorded; and the signal of the rotation angle of the torque motor arranged on the mechanical device is sent to a far-end slave mechanical arm through the first signal output circuit, and therefore the location tracking of the slave mechanical arm is achieved. Voltage control regulation of the torque motor is achieved through the second signal output circuit according to a regulating variable obtained through PID control calculation. According to the handheld force feedback device and the force sense reproduction method using the same, force sense reproduction of long distance force signals can be achieved, an operator can have the sense of the same force signals by the long distance signals, and the practicability is high.

Description

technical field [0001] The invention relates to a hand-held force feedback device, and also relates to a method for realizing force sense reproduction by using the device. Background technique [0002] Underwater manipulator is an important equipment used by underwater vehicles in underwater exploration. Since the collection of underwater samples in deep sea exploration is mainly completed by underwater manipulators, underwater manipulators lack force perception and the operating objects of manipulators are uncertain. Sexuality, resulting in the problem of damage to the collected samples. The working environment of the underwater manipulator is complex, and it is generally completed with video assistance, but the water quality becomes muddy due to the movement of the manipulator or its carrier, which affects the operation of the manipulator. Therefore, the master-slave teleoperation system with force perception is a development research direction. The force feedback device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25J9/16B25J13/08
CPCB25J9/1633B25J13/085
Inventor 刘卫东张建军高立娥张洁
Owner NORTHWESTERN POLYTECHNICAL UNIV
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