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Unlimited operation and linear servo method for interactive exhibits

An unrestricted and exhibit technology, applied in the direction of motor generator control, control system, electrical components, etc., can solve problems such as poor control sense, achieve the effect of not easy to damage, ensure operational safety, and improve reliability and stability

Inactive Publication Date: 2014-10-01
北京全景多媒体信息系统公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When using switches and joysticks to operate the input control device, since the speed and displacement of the servo motor have nothing to do with the audience's operation, the audience determines the stop point based on visual feedback, and the control feeling is poor.

Method used

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  • Unlimited operation and linear servo method for interactive exhibits
  • Unlimited operation and linear servo method for interactive exhibits
  • Unlimited operation and linear servo method for interactive exhibits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] This device consists of knob, incremental rotary encoder (Omron E6A2-CW5C), control circuit (MC1-EN01P-C), DC power supply (Hengfu HF20W-S-12, AC220 input, DC12V output, power 20W), motor Drive (128 high subdivision drive), stepper motor composition (28BYG).

[0026] As a focusing control mechanism, the device is used on the special digital optical microscope produced by our company. After actual testing, the response speed is fast (less than 0.1 second), the position control is accurate, and the hand feeling is clear. It has been running stably in the science and technology museum for more than half a year. .

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Abstract

The invention provides an unlimited operation and linear servo method for interactive exhibits, and the method provides an unlimited operation and linear servo device for interactive exhibits of a science and technology museum, a museum and the like. The device comprises a manipulation unit, a control circuit, a servo unit and a power supply unit, wherein the manipulation unit consists of a knob and an incremental rotary encoder (encoder for short); the servo unit consists of a stepping motor and a stepping motor controller; the control circuit converts pulse signals output by an A phase and a B phase of the encoder into a pulse signal and a TTL (Transistor-Transistor Logic) signal to serve as rotation speed and direction control signals of the stepping motor controller respectively; and a low voltage direct current source supplies power to the encoder, the control circuit and the stepping motor controller. The characteristic of the encoder ensures that a rotation angle of the knob is unlimited (any value from 0 to above 360 degrees), and the reliability of the interactive exhibits is ensured; a rotation speed and a rotation angle of the stepping motor are linearly proportional to a rotation speed and the rotation angle of the knob, so that the manipulation sense of the interactive exhibits is raised; and the low voltage direct current source ensures the operational safety of the interactive exhibits.

Description

technical field [0001] The invention relates to an unlimited operation and linear servo method for interactive exhibits in science and technology museums and museums. Background technique [0002] At present, knobs, switches, and joysticks are widely used in interactive exhibits in science and technology museums, museums and other places as interactive input manipulation devices for exhibits, and control motors to drive a certain mechanism to move or rotate. [0003] The rotation range of the knob is generally limited by the input sensor, there is a limit position, and it cannot be rotated at any angle, so it is extremely vulnerable to damage. [0004] The characteristics of the incremental rotary encoder ensure that the rotation angle of the manipulation knob is not limited (ranging from 0 degrees to any value greater than 360 degrees), which improves the reliability of the interactive exhibits. [0005] When using switches and joysticks to operate the input control device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/14
Inventor 王群
Owner 北京全景多媒体信息系统公司
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