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Laser guided positioning and orientation device and method of roadheader

A technology of laser guidance, positioning and orientation, which is applied in the direction of measuring devices, earthwork drilling, cutting machinery, etc., can solve the problems of complex data acquisition and processing, long adjustment time, etc., and achieve the effect of shortening adjustment time, increasing speed, and convenient adjustment

Inactive Publication Date: 2012-08-08
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The data acquisition and processing of this method is complicated, and there is no information to directly calibrate the center coordinates of the excavation cantilever aligned with the excavation section, and the adjustment time is long

Method used

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  • Laser guided positioning and orientation device and method of roadheader
  • Laser guided positioning and orientation device and method of roadheader
  • Laser guided positioning and orientation device and method of roadheader

Examples

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Embodiment Construction

[0022] The laser receiver is composed of a photoelectric receiving conversion element, a resistor, a capacitor, and an amplifier; the photoelectric receiving conversion element is composed of 27 photosensitive tubes, 9 photosensitive tubes are set at the horizontal position, and 3 rows of photosensitive tubes are set at the vertical position, each photosensitive tube A photoelectric conversion amplifier circuit is connected behind the tube; one end of the photosensitive tube is grounded, the other end is connected to pin 3 of the operational amplifier TL082, and a resistor R2 is connected between pins 3 and 6 to form a pre-stage operational amplifier circuit; in order to eliminate the influence of dark current, Capacitor C2 is connected in parallel at both ends of resistor R2, pin 2 is grounded through resistor R1, and capacitor C1 is connected in parallel at both ends of resistor R2. , the amplified voltage signal is sent to the input end of the multi-way switch; the multi-way...

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Abstract

The invention provides a laser guided positioning and orientation device and a method of a roadheader. A detector thereof is composed of a laser guiding device, a laser receiver, a multicircuit switch, an analog-to-digital converter, a singlechip and a control system, wherein the laser guiding device is arranged on a tunnel roof at the back of the roadheader, and the laser receiver and the multicircuit switch are arranged on a cantilever. In the detection method, the laser guiding device is arranged on the tunnel roof at the back of the roadheader, the laser receiver is arranged on the cantilever, the laser receiver is used for converting received optical signals into voltage signals and amplifying the voltage signals, the analog to digital converter is used for converting the amplified voltage signals into digital signals, and then the digital signals are operated and processed by the program of the singlechip, thus deviation that the roadheader deviates from the laser guiding direction and information that the excavated cantilever aligns with the center coordinate of an excavated section can be output, thereby positioning the cutting head of the cantilever, being capable of fastcalibrating the central point of the reference coordinate, shortening the adjustment time, improving the excavating speed, and ensuring the orientated excavation of the roadheader in laser guiding direction.

Description

technical field [0001] The invention relates to a laser-guided positioning and orientation device and method for a roadheader, which is especially suitable for remote control of the roadheader in coal mines with harsh environments, shortens the adjustment time of the cantilever, improves the speed of the roadheader, and ensures that the roadheader points to the direction of the laser. Directional excavation provides a benchmark for the precise cutting of excavation sections. Background technique [0002] Accurate guidance during roadway excavation is a key issue during roadway construction, and the level of guiding accuracy directly affects the construction quality and efficiency of the roadway. In order to excavate according to the predetermined route, the coal mine roadheader currently projects the laser beam on the coal rock that needs to be excavated. According to the direction of the laser beam, it is very troublesome to manually remind the operator continuously; abroad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C15/00E21C35/24
Inventor 童敏明童紫原徐楠唐守锋
Owner CHINA UNIV OF MINING & TECH
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