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A Hard Rod Control System

A control system and hard rod technology, applied in electric controllers, theodolites, etc., can solve the problems of being susceptible to electromagnetic field interference and poor interchangeability, and achieve the effects of friendly man-machine performance, convenient operation and simple control method.

Inactive Publication Date: 2016-09-28
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing hard rod control system has poor interchangeability; the signal changes with temperature, and a single-chip microcomputer is required to correct the nonlinear output; it is susceptible to electromagnetic field interference

Method used

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Embodiment Construction

[0027] Such as figure 1 , the principle of the present invention is: the analog voltage signals La and Le output by the strain gauges in the horizontal direction and the vertical direction strain gauges are sent to the hard rod regulator, and the small change amount of the strain resistance is converted into -10V~+10V through the conversion circuit. The voltage changes Ua and Ue, Ua and Ue are sent to the speed regulator, and the strain voltage changes Ua and Ue are transformed into voltage control signals Va and Ve of the azimuth servo motor and pitch servo motor of the theodolite with high sensitivity through the speed feedback loop ; The signals Va and Ve are connected to the motor of the theodolite through the cable output; thereby realizing the man-machine intelligent remote control of the theodolite.

[0028] The hard rod control system is composed of a pure hardware circuit, including a hard rod regulator and a speed regulator which are sequentially connected with the h...

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PUM

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Abstract

The invention provides a hard rod control system, which solves the semi-automatic tracking problem of the theodolite hard rod. It includes a bridge circuit, a first branch and a second branch, the first branch and the second branch both include a differential amplification and balance circuit for weak signals connected in sequence, a low-pass filter circuit, an adjustment circuit for zero point drift, and a gain Adjustment and characteristic adjustment circuit and limiting amplifier circuit, the control method of the hard rod control system is simple, easy to operate, with the functions of shaking the handle in any direction, temperature self-compensation, anti-electromagnetic interference, high sensitivity, high return accuracy, and low cost .

Description

technical field [0001] The invention belongs to the field of electromechanical integration servo control systems, and in particular relates to a hard rod control system. Background technique [0002] The hard rod control system is widely used in the remote or ultra-remote control of theodolite to realize the semi-automatic tracking, orientation and capture functions of theodolite to the target. The hard rod actuator (i.e. handle, or joystick) is divided into hard rod and soft rod, and the hard rod has better return accuracy and anti-vibration performance; when the hard rod handle is pulled, the offset vector away from the center position , which reflects the rotation direction and size of the motor, and the speed at which the handle of the hard rod is pulled reflects the rotation speed of the motor. The measurement of the offset is commonly used with infrared optical sensors, Hall sensors, and force-sensitive sensors. The force-sensitive sensor has the characteristics of lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B11/01G01C1/02
Inventor 王鲜红马彩文梁雁冰李艳
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI