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Apparatus for applying fiber-optic telecommunication technology on photoelectric transit data telecommunication

A photoelectric theodolite and optical fiber communication technology, applied in the field of data communication, can solve the problems of continuous signal transmission, difficult alignment, and electrical signals susceptible to electromagnetic interference, etc., to improve the overall measurement performance and flexibility, fast transmission speed, and huge The effect of practical value

Inactive Publication Date: 2008-07-23
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0005] Compared with the conductive ring, the present invention solves the problem that the electrical signal is susceptible to electromagnetic interference by adopting the technical scheme that the contact transmission of the substituting signal is the non-contact transmission of the optical signal; The beam expansion collimation and focusing realizes the coupling of the beam between the two sections of optical fiber, which not only solves the problem that the signal cannot be continuously transmitted due to the rotation of the horizontal azimuth axis when the photoelectric theodolite is working, but also solves the problem of thin optical fiber core, generally for 50 μm, aligning very difficult problems

Method used

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  • Apparatus for applying fiber-optic telecommunication technology on photoelectric transit data telecommunication
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  • Apparatus for applying fiber-optic telecommunication technology on photoelectric transit data telecommunication

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Embodiment Construction

[0010] The present invention is divided into the upper rotating part and the lower fixed part. image 3 Including: theodolite azimuth axis 1, the first connecting frame 2, the first optical collimator pigtail 3, the first optical collimator shell 4, the first optical collimator lens group 5, the second optical collimator A lens group 6 , a second optical collimator shell 7 , a second optical collimator pigtail 8 , a second connecting frame 9 , and a theodolite base 10 .

[0011] The first connecting frame 2 and the second connecting frame 9 are made of firm and less deformed metal material, the inner wall of the first connecting frame 2 is processed black, and their inner walls are rougher to prevent the surface of the light collimator lens from collimating The reflected light enters the optical collimator after being reflected by the inner wall of the first connecting frame 2, causing interference. In order to better absorb the reflected light, an absorbent carbon black is ad...

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Abstract

A device applying optical fiber communication technique on data communication of photoelectric theodolite consists of orientation shaft, the first and the second connection frames, the first and the second optical collimator tail fibers, the first and the second optical collimator tube shells, the first and the second optical collimator lens sets and base of theodolite. The device not only can raise transmission rate but also can avoid electromagnetic-wave interference on signal.

Description

technical field [0001] The invention relates to a photoelectric theodolite, in particular to the data communication of the photoelectric theodolite. technical background [0002] When the photoelectric theodolite is working, the rotation of the azimuth axis makes it difficult for the continuity of data transmission. At present, the photoelectric theodolite uses the method of installing a conductive ring on the horizontal azimuth axis to connect two cables to realize data transmission. The device for data transmission using a conductive ring includes: a data acquisition system, a conductive ring, and a data processing system, such as figure 1 shown. During the data transmission process, the data collected by the data acquisition system is transmitted to the conductive ring through the cable in the form of electrical signals, and the conductive ring then transmits the data to the data processing system through the cable, realizing the continuity of data transmission. However...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C23/06G01C1/02
Inventor 沈铖武曹永刚王晶沈成彬
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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