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Three-dimensional attitude measuring set of tunneling construction guidance system

A guidance system, three-dimensional attitude technology, applied in measuring devices, tunnels, measuring angles, etc., can solve problems such as high requirements for light intensity and inaccurate processing of pulsed light signals.

Inactive Publication Date: 2009-03-25
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0009] The invention provides a three-dimensional attitude measurement device for a tunnel excavation construction guidance system, which solves the problems that the existing three-dimensional attitude measurement device has high requirements for light intensity and is not accurate enough for pulse light signal processing, so as to simplify the installation and use of the equipment, and use Guidance system for tunnel excavation construction

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  • Three-dimensional attitude measuring set of tunneling construction guidance system
  • Three-dimensional attitude measuring set of tunneling construction guidance system
  • Three-dimensional attitude measuring set of tunneling construction guidance system

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Embodiment Construction

[0027] figure 1 Be an embodiment of the present invention, wherein prism 1: φ 60mm; The light transmittance of optical filter 2 is 0.1%; Lens 3 is the convex lens group that two convex lenses form: φ 27mm, f=35mm; The sensor size of CCD camera 4: 1600 Pixel × 1200 pixels; inclinometer 5 selected model: digital output dual-axis inclination sensor module NS-15 / PL2; the horizontal swing angle signal generated by the sensor of CCD camera 4 and the angle signal generated by the inclinometer are passed through Gigabit network card and asynchronous The serial communication interface transmits to the main control computer. Considering the practical application, the standard asynchronous serial communication interface can adopt RS-485.

[0028] The processing accuracy of each component is required to meet the design accuracy: 6-level accuracy; the chassis is sealed, nitrogen-filled, and shock-proof.

[0029] figure 2 Be the optical principle of the present invention: pass through the...

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Abstract

The invention discloses a three-dimensional attitude measurement device for a tunneling construction guidance system, which belongs to a positioning measurement device and aims to solve the problems that the prior three-dimensional attitude measurement device has higher requirement on the light intensity and is not accurate to the processing of pulsed light signals so as to simplify the installation and use of equipment. A prism, a lens, a CCD camera and an inclinometer are sequentially arranged on a light path along the axial direction in a machine case of the device, and output signals of the CCD camera are sent to a computer through a gigabit network cable; and output signals of the inclinometer are sent to the computer through an asynchronous serial communication interface. The device has small volume, simplifies the operation, and directly utilizes infrared rays of a total station instrument to focus through the lens to project on the photosensitive surface of the CCD camera to produce a photosensitive signal, the photosensitive signal is processed to obtain deflection angle data of incident light, and the deflection angle data are output to an external computer along with inclination angle data measured by the inclinometer. The device is mainly used for attitude measurement during the construction process of a shield machine and obtains a pitching angle, a rolling direction angle and a horizontal deflection angle of a shield in a real-time mode.

Description

technical field [0001] The invention belongs to a positioning measuring device and can be used in the fields of mines, hydraulic tunnels, subway tunnels, municipal pipelines, common ditches and the like. Background technique [0002] Shield tunneling technology is an engineering construction technology for underground excavation tunnels. It is developed with the development of modern transportation, underground engineering, mining, water conservancy projects, municipal construction and electrical communication facilities. The early shield machine mainly used the shield shell unique to the shield machine as a support to prevent the collapse of the stratum, so as to ensure the safety of various operations such as excavation and lining inside it. The excavation is basically manual. Excavation method. With the increasing number of tunnel projects, in order to adapt to the construction requirements under different conditions and improve construction efficiency, in addition to co...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06G01C1/00
Inventor 朱国力潘明华蔡海洋
Owner HUAZHONG UNIV OF SCI & TECH
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