KR20050002952A - Method for aligning laser transceiver - Google Patents

Abstract

PURPOSE: A laser transceiver alignment method is provided to exactly and easily align each transmitting hole of a transmitting unit within one laser transceiver to a receiving unit of another laser transceiver so that the communication between the laser transceivers can be achieved exactly. CONSTITUTION: Laser beams radiated from the light-emitting lenses(26A,28A) of a laser transceiver fixed to the first point(OP1) are focused on a light-receiving lens(32B) installed at the second point(OP2). The laser beams emitted from the light-emitting lenses(26B,28B) of another laser transceiver fixed to the second point(OP2) are focused on another light-receiving lens(32A) installed at the first point(OP1). Accordingly, each transmitting hole of a transmitting unit of one laser transceiver can be rapidly, exactly, and easily aligned to a receiving unit in the other laser transceiver so that the communication between the laser transceivers can be achieved exactly.

Description

Method for aligning laser transceiver

The present invention relates to a laser transceiver alignment method, and more particularly, to a laser transceiver alignment method capable of accurately aligning a laser beam of two laser transceivers facing each other for mutual communication.

In general, lasers or laser beams are widely used in various fields. In such a laser application field, the laser beam has been actively applied to the communication field in recent years due to the advantages that the microwave beam has no radio interference phenomenon, excellent call quality, and low equipment and cost. Such laser communication can communicate by transmitting and receiving audio, video or data to and from each other by storing a signal in a laser beam using a single laser transceiver and transmitting the same to another laser transceiver corresponding thereto and receiving the same. .

In such a communication, in order to achieve accurate communication, the two lasers must be precisely aligned, that is, aligned correctly, so as to accurately transmit and receive the laser beams. Alignment of such a laser transceiver is performed in various ways.

However, the conventional alignment method is a method of integrally fixing the laser transmitter to the pedestal, so that the handling is not easy, and the alignment is completely fixed in the completed state, so that it is difficult to readjust the alignment later. There is a problem that is not easy.

On the other hand, a laser transceiver having an automatic alignment structure such as Korean Patent Publication No. 10-2001-0039162 has the advantage of automatically adjusting the alignment of the laser beam, but the manufacturing cost and price is expensive, the problem that can not be practically applied to the laser transceiver have.

Accordingly, the present invention has been invented to solve the above-described problems, and an object of the present invention is to provide a laser transceiver alignment method capable of finely, accurately and quickly aligning laser beams between laser transmitters.

1 is a perspective view showing the overall shape of a laser transceiver to which a laser transceiver alignment method according to the present invention is applied.

2 is a cross-sectional view taken along line II-II of FIG. 1.

3 is a cross-sectional view taken along line III-III of FIG. 2;

4 is a partially enlarged cross-sectional view of the laser transceiver of FIG.

5 is a perspective view of a support device of the laser transceiver of FIG.

6 is a cross-sectional view taken along the line VI-VI of FIG. 5.

7 is a cross-sectional view taken along line VII-VII of FIG. 5;

8 is a partial cutaway sectional view showing a state in which a laser transceiver is fixed to a support by a support device;

9 is a schematic diagram showing an alignment method of a laser transceiver according to the present invention;

♣ Explanation of symbols for the main parts of the drawing ♣

10: main body 20: transmitter

30: receiver 40: adjuster

42: second adjusting device 72: support device

76: up and down adjustment device

These objects include a main body having a laser beam generator, a base in which the laser beam generator is embedded, a base having a support frame, a front member provided in front of the base, and a cover for closing the inner space of the base. And a laser beam transmission device including a transmission port that is adjustablely installed on the support frame and the front member of the main body to transmit the laser beam generated by the laser beam generator to the other laser transmitter. A receiving device installed in the main body for receiving the laser beam emitted from the laser transmitter, an adjusting device for aligning the laser beam emitted from the transmitting device with the receiving device of the other laser transceiver, and a receiving device of the main body A fixed plate to which the lower part of the main body is mounted to adjust the high and low angles of the main body, It is installed in the lower portion of the base plate, and the vertical adjustment means for adjusting the high and low angle of the light receiving lens of the receiving device, and installed in the lower portion of the vertical adjustment device, azimuth angle adjusting means for adjusting the azimuth angle of the light receiving lens of the receiving device 2. A method of aligning two laser transceivers, each comprising a support device comprising: mounting each laser transceiver to a support fixed to the ground using the support device; Adjusting azimuth and elevation angles so that each receiver faces each other using the support of the laser transceiver; Adjusting a transmission port of a transmission device of one of the laser transceivers so that the laser beam emitted therefrom is directed toward the reception device of the other laser transceiver; And adjusting the transmitting port of the transmitting device of the other laser transceiver so that the laser beam emitted therefrom is directed toward the receiving device of the one laser transceiver.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, referring to Figs. 1, 2 and 3, the laser transceiver to which the alignment method according to the present invention is applied has a base 12 which can take various forms when viewed from the outside and in front of the base 12. The front member 14 provided and the cover 16 for closing the inner space of the base 12 are detachably installed. The base 12 of the main body 10 is provided with a support frame 18, the support frame 18 and the front member 14, for example, the transmission device 20 is provided on one side. In the embodiment according to the invention, the transmission device 20 comprises two laser beam transmission devices, namely a first transmission device 22 and a second transmission device 24. Each of the transmission ports 22 and 24 includes light emitting lenses 26 and 28 exposed to the outside, and may be formed in a cylindrical shape.

On the other hand, the receiver 30 is fixedly installed in the central portion of the main body 10. Of course, the receiving device 30 is formed in a cylindrical shape of the main body, a relatively large light receiving lens 32 is provided in front of the front is exposed.

Of course, the inside of the main body 10 may be provided with a laser beam generator (G) for supplying a laser beam to the transmission device, as shown by a dotted line in FIG. Also, a mounting table 34 for mounting a general or conventional controller or interface (not shown) for controlling the transmission device and the signal received therefrom or a plurality of reinforcement frames 36 for reinforcement of the main body. Etc., each of these elements is well known, and thus detailed description thereof is omitted herein. In addition, a number of fixing holes 38 are provided at various suitable positions of the base 12 to fix the cover 16 to the base using fixing means such as bolts or screws.

Optionally, an opening hole through which a tool such as a driver can enter and exit the base 12 and the cover 16 so that the azimuth angle and the height angle of each transmission port of the transmission apparatus described later can be easily adjusted from the outside. 12a) 16a may be perforated. Of course, it is preferable that stoppers 12b and 16b are detachably provided in each of the openings 12a and 16a for waterproofing and dustproofing.

In addition, the front end of the case of each of the transmission port 22, 24 is rounded for a three-dimensional angle adjustment of each transmission port as described later, the front member 14 is inserted correspondingly to the front end It is also preferred that the openings of) be formed into grooves of the same curvature.

In particular, each transmission port constituting the transmission device 20 installed in the main body 10 of the laser transceiver according to the present invention, that is, the first transmission port 22 and the second transmission port 24, their azimuth angle and up and down Each adjusting device for adjusting the angle is spoken. For example, in order to three-dimensionally control each transmission port, the first control device 40 is addressed to the first transmitter 22, and the second control device 42 is addressed to the second transmitter 24. .

As shown in detail in FIG. 4, the first adjustment device 40 has a support plate 44 fixedly movable and adjustable to the left and right and up and down on the support frame 18. The supporting plate 44 is preferably formed in a square. In the center of the support plate 44 is formed a through hole 46 through which the rear portion of the first transmission port 22 is movably inserted. The through hole 46 is preferably rounded for the smooth child of the first transmitter 22. In addition, each corner of the support plate 44 is provided with screws or fixing bolts 46a, 46b, 46c, 46d to be releasably fixed to the support frame 18.

In addition, a long groove 48 is formed between each of the fixing bolts 46a, 46b, 46c, 46d provided at each corner of the support plate 44, and each of the long grooves 48 actually supports the left and right support plates 44. And an elastic member 50 for determining a position up and down. Each elastic member 50 is preferably formed of a tension spring. One end of each elastic member 50 is preferably fixed to the fixing piece (18a) formed in the support frame 18, the other end is preferably fixed to the support piece (48a) provided at one end of the long groove (48). In particular, each of the elastic members 50 is preferably installed so that their respective elastic force toward one of the set corners of the corners of the support plate 44. For example, in the present embodiment, each of the elastic members 50 are arranged so that the tensile force is applied in the direction of the arrow, so that one fixing bolt 46a of one of the fixing bolts provided at each corner of the support plate 44 Can be focused or converged.

In addition, the upper and one side of the support frame 18 of each support plate 44 is provided with an adjusting member 52 for actually adjusting the position of the support plate 44. The adjusting member 52 has a fixing piece 54 fixed to the support frame 18, and an adjusting bolt 56 screwed to the fixing piece 54 and having an end thereof contacting the upper side of the supporting plate 44. do. According to this configuration, the user can adjust the upper and lower and left and right positions of the support plate 44 by tightening the adjustment bolt 56 to advance or release.

On the other hand, the second adjusting device 42 for adjusting the high and low light azimuth angle of the second transmitting device 24 has a structure similar to that of the first adjusting device 40 described above. That is, the second adjusting device 42 has a support plate 58 fixed to the support frame 18 so as to be movable and adjustable vertically and horizontally. The support plate 58 is preferably formed in a square or a square. In the center of the support plate 58 is formed a through hole 60 into which the rear portion of the second transmission port 24 is inserted to be movable. The through hole 60 is preferably rounded for smooth movement of the second transmission port 24. In addition, a fixing screw or fixing bolts 60a, 60b, 60c, 60d are provided at each corner of the support plate 58 to be releasably fixed to the support plate 18.

In addition, long grooves 62 are formed between the fixing bolts 60a, 60b, 60c, and 60d provided at respective corners of the support plate 58, and each of the long grooves 62 actually supports the support plate 58 left and right and up and down. An elastic member 64 is installed to determine the furnace position. Each elastic member 64 is preferably formed of a tension spring. One end of each elastic member 64 is preferably fixed to the fixing piece (18a) formed in the support frame 18, the other end is preferably fixed to the support piece (62a) provided at one end of the long groove (62). In particular, each elastic member 64 is preferably installed such that their respective elastic force is directed toward one set corner of the corners of the support plate 58. For example, in the present embodiment, each of the elastic members 64 are arranged so that the tensile force is applied in the direction of the arrow, so that the fixing bolt 60a of one of the fixing bolts provided at each corner of the support plate 58 Can be focused or converged.

In addition, the upper and one side of the support frame 18 of each support plate 58 is provided with an adjusting member 66 for actually adjusting the position of the support plate 58. The adjusting member 66 is provided with a fixing piece 68 fixed to the support frame 18 and an adjusting bolt 70 screwed to the fixing piece 68 and having an end thereof in contact with the upper side of the supporting plate 58. do. According to this configuration, the user can adjust the upper and lower and left and right positions of the support plate 58 by tightening the adjustment bolt 70 to advance or release.

Meanwhile, as shown in FIGS. 5 to 8, the laser transceiver to which the alignment method according to the present invention is applied may further include a support device 72 for controlling the high and low angles and azimuth angles of the main body and the receiving lens of the laser transceiver. have. The support device 72 has a fixing plate 74 on which the lower part of the main body 10 of the laser transceiver is mounted. The fixing plate 74 is formed in a circular shape, and it is preferable that a plurality of fixing pieces 74a on which the main body 10 is fixedly mounted protrude upward, but if the main body 10 can be stably fixed, other shapes may also be used. It is possible.

The lower portion of the fixed plate 74 is provided with a vertical adjustment device 76 for adjusting the height of the entire body 10 or the light receiving lens 32 of the receiver 30. The upper and lower regulating device 76 is composed of an upper member 78 fixed to the lower portion of the fixing plate 74 and rotatable up and down, and a lower member 80 rotatably supporting the upper member 78. For example, the lower surface 78a of the upper member 78 is formed in a convex shape, and the upper surface 80a of the lower member 80 is formed in a recessed shape so that the lower surface of the upper member can be slid. It is preferable. In addition, the receiving groove 82 is formed in the front-rear direction at the center of the upper member 78. Correspondingly, the center portion of the upper surface 82a of the lower member 80 is accommodated in the accommodation groove 82 to guide the front and rear movement of the accommodation groove 82 of the upper member, and consequently to guide the front and rear swing movement of the upper member. Guide 84 is fixed by bolt 86.

In addition, a plurality of fastening devices 88 are provided from the upper member 78 to the lower member 80 to secure the upper member 78 after the adjustment of the height of the lower and lower positions relative to the lower member 80 is completed. . Openings 90 are formed at both sides of the upper member 78 to facilitate the entry and exit of the tool for fastening or releasing the fastening device 88. In addition, the fastening device 88 is a bolt 88a which is inserted into the lower member 80 and fixed, a washer 88b in contact with the bottom surface of the opening 90, and a nut 88c fastened to the bolt 88a. ) Of course, the upper member 78 is formed with a receiving hole 92 in communication with the opening 90 for easy movement of the bolt (88a).

Optionally, the lower portion of the lower member 80 is preferably provided with a mounting member 94 is rotatably fixed to the mounting plate (M) that can be fixed to the support or the mounting table (P). In particular, the shaft 96 is preferably provided at the center of the mounting member 94 so that the mounting member can rotate about the central axis of the mounting plate (M). Of course, a plurality of fixing members 98 consisting of bolts and nuts are actually provided to firmly fix the mounting member 94 to the mounting plate M after determining by adjusting the azimuth by rotating the mounting member as described below. . Of course, in order to smoothly adjust the fixing member 98, the mounting member 94 and the mounting plate M are preferably provided with fixing holes 94a and fastening holes Ma facing each other.

Hereinafter, a laser transceiver alignment method according to the present invention will be described in detail.

First, the operator prepares two or more laser transceivers and then specifies a position to communicate with each other. Experimental results show that the laser transceiver according to the present invention is typically guaranteed an effective transmission distance of 4 to 5 km.

Referring to FIGS. 8 and 9 and the above-mentioned drawings, the operator is at each of the corresponding points, for example, the first point OP1 and the second point 0P2, which are not limited but are preferable installation positions such as the summit of a building or a mountain. Install each support (P). Then, the mounting plate (M) is fixed to each support (P) to mount the laser transceiver. In more detail, the mounting member 94 provided on the lower portion of the lower member 80 of the support device 72 mounted on the main body 10 of the laser transceiver has a shaft 96 provided at the center thereof. Mounting plate (M) rotatably fixed to the support (P). Thereafter, the operator rotates the entire support device 72 or the mounting member 94 to adjust the azimuth angle so that each laser transceiver installed at each point faces each other, and then uses the fixing member 98 composed of bolts and nuts. The mounting member 94 is fixed to the mounting plate (M). Of course, thereafter, the azimuth angle of the entire laser transceiver can be adjusted by releasing or tightening the mounting member in such a manner as to access and access the tool to the fixing hole 94a and the fastening hole Ma formed in the mounting member 94 and the mounting plate M. have.

As described above, after the laser transmitters are installed in the states in which the laser receivers face each other, the operator again adjusts the up and down or the high and low angles of the main body 10 using the support device 72. That is, by adjusting the upper member 78 in a swing or sliding manner with respect to the lower member 80 of the support device 72 to adjust the high and low angle of the laser transceiver itself or the main body 10. At this time, by the interaction between the convex lower surface 78a of the upper member 78 and the recessed upper surface 80a of the lower member 80, the upper member can slide smoothly, and also the upper member 78 Receiving groove 82 formed in the center of the guide is provided by the guide 84 provided in the central portion of the upper surface 82a of the lower member 80 is accurately guided by the high and low angle of the body 10 can be adjusted accurately and easily. .

Subsequently, when the high and low angles of the main body 10 are adjusted, the tool is inserted through the openings 90 formed at both sides of the upper member 78 to insert the nut 88c of the fastening device 88 into the lower member 80. The main body 10 is fixed by fastening to 88a. Of course, if necessary, the high and low angles of the main body 10 can be adjusted at any time by releasing and fastening the fastening device 88.

In this way, in the state where the laser transceiver is installed to face each other at a distance separated by a predetermined distance, the alignment of the transceiver is mutually adjusted for the actual transmission and reception of the laser light. That is, while the main body of each laser transceiver is fixed, the left and right and the high and low angles of the respective transmitters are adjusted so that the laser beam emitted from the transmitter of one laser transceiver reaches the receiver of the other laser transceiver accurately.

In more detail, first, the alignment of the first transmitter 22 is adjusted using the first adjusting device 40 addressed to the first transmitter 22 constituting the transmitter 20 of one laser transceiver. do. That is, the azimuth and the high and low angles are adjusted by tightening or releasing the adjusting bolts 56 of the adjusting member 52 installed on the upper and side portions of the support plate 44 supporting the first transmitter 22. At this time, the first transmission port 22 is moved up and down or left and right with respect to the support frame 18 in response to the adjustment of the vertical movement or the horizontal movement of the support plate 44, and as a result, the alignment of the lens of the first transmission port 22 Is controlled.

Of course, being able to adjust the high and low angles and the azimuth angle of the first transmission tool 22 only by adjusting the upper and one side of the support plate 44 is the elastic force of each elastic member 50 supporting the support plate 44 and It can be achieved automatically by the support force of the adjustment bolt 56. This adjustment is also because the support plate 44 is arranged such that tension is exerted by each elastic member 50 to one of its corners. On the other hand, tightening and loosening of the adjustment bolt 56 as described above can be easily performed by inserting a tool such as a driver through the through hole 16 formed in the cover 16, or the cover 16 is removed In the same manner as described in the adjustment bolt 56 can be adjusted.

After the alignment of the reception lens of the receiver of the opposing laser transceiver of the first transmitter 22 is completed, the second transmitter 24 is aligned to the receiver of the opposing laser transceiver in the same manner. That is, the driver is inserted into the adjusting bolt 70 of the adjusting member 66 provided on the upper and side portions of the support plate 58 supporting the second transmitter 24 through the through hole 12a of the base 12. Tighten or release to adjust the azimuth and elevation angles. At this time, the second transmission port 24 is moved up and down or left and right with respect to the support frame 18 to correspond to the shank or left and right movement control of the support plate 58, as a result, the lens of the second transmission port 22 is a relative side It is aligned with the light receiving lens of the receiver of the laser transceiver.

Similarly, being able to adjust the high and low angles and azimuth angles of the second transmission tool 24 only by adjusting the upper and one side portions of the support plate 58 is the elastic force of each elastic member 64 supporting the support plate 58. It can be achieved automatically by the bearing force of the adjustment bolt (70). This adjustment is also because the support plate 58 is arranged by each elastic member 64 such that tension is exerted to one of its corners.

On the other hand, the other laser transceiver, that is, the other side laser transceiver can also align the transmission port of the transmitting device with respect to the receiving device of one laser transceiver in the same manner as described above, the detailed description thereof to avoid duplication Is omitted.

Of course, thereafter, by using a transmitter of the transmitter of one laser transceiver in a general manner, by transmitting the laser beam to the other, that is, the light receiving lens of the receiver of the other laser transceiver, or vice versa It is possible to perform a predetermined laser communication.

As a result, as shown in FIG. 9, the laser beam emitted from each of the light emitting lenses 26A and 28A of one laser transceiver fixed to the first point OP1 is connected to the other point installed at the second point OP2. The laser beam emitted from each of the light emitting lenses 26B and 28B of one laser transceiver fixed to the light receiving lens 32B and fixed to the second point OP2 is installed at the first point OP1. The focus is focused on the other light receiving lens 32A. Accordingly, it is possible to quickly and accurately align each transmission port of the transmission device to each one laser transceiver to the reception device of the other laser transceiver, and thus to achieve accurate communication with each other.

As a result, according to the laser transceiver alignment method according to the present invention, it is possible to align each transmission port of the transmitting device to one laser transceiver accurately and easily to the receiving device of the other laser transceiver so that accurate communication between the laser transceivers can be achieved. It can achieve the effect that the productability and operability is improved.

While a preferred embodiment according to the present invention has been described above, it will be understood by those skilled in the art that various modifications and changes can be made without departing from the scope of the appended claims.

Claims (1)

A main body having a laser beam generating device, a base having the laser beam generating device built therein, a base having a supporting frame, a front member provided in front of the base, and a cover for closing the inner space of the base; A laser beam transmission device having a transmission port that is adjustablely installed on the support frame and the front member of the main body for transmitting the laser beam generated by the generator to the other laser transmitter, and emitted from the other laser transmitter A receiving device installed on the main body for receiving a laser beam, an adjusting device for aligning the laser beam emitted from the transmitting device to a receiving device of another laser transceiver, and a high and low angle of the receiving device of the main body. In order to adjust, the fixing plate to which the lower part of the main body is mounted, and the lower part of the fixing plate It is installed in the support, and the upper and lower adjustment means for adjusting the high and low angle of the light receiving lens of the receiving device, the support is provided in the lower portion of the vertical adjustment device, and provided with an azimuth angle adjusting means for adjusting the azimuth of the light receiving lens of the receiving device 2. A laser transceiver alignment method comprising two devices each comprising: Mounting each laser transceiver to a support fixed to the ground using the support device; Adjusting azimuth and elevation angles so that each receiver faces each other using the support of the laser transceiver; Adjusting a transmission port of a transmission device of one of the laser transceivers so that the laser beam emitted therefrom is directed toward the reception device of the other laser transceiver; And And adjusting the transmitting port of the transmitting device of the other laser transceiver so that the laser beam emitted therefrom is directed toward the receiving device of the one laser transceiver.