KR20190012917A - Transceiver for optical communication - Google Patents

Abstract

The present invention relates to a transceiving apparatus for optical communication, which can perform one-way or double-way data optical communication by accurately aligning a transceiving module used for optical communication by using visual light. The transceiving apparatus for optical communication uses visual light, an optical screen, and a detection sensor to enhance transceiving efficiency of light between a transmitting apparatus and a receiving apparatus for optical communication which are arranged at a constant distance (a visual identification distance). Moreover, an antenna such as an existing radio communication is not necessary becuase the transceiving apparatus for optical communication is a one-way or two-way data communication using optical communication.

Description

Technical Field [0001] The present invention relates to a transceiver for optical communication,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transceiver for optical communication, and more particularly, the present invention relates to an optical transceiver for transmitting and receiving data in a unidirectional or bidirectional manner by accurately aligning transmission / reception modules using optical light.

Further, the optical transmission / reception device of the present invention is an invention that can increase the transmission / reception efficiency of light between optical transmission / reception devices disposed at a certain distance (visible distance) by using visual light, optical screen, and detection sensor.

Further, the optical transmission / reception device of the present invention is an unidirectional or bidirectional data communication using optical communication, and does not require an antenna such as conventional radio communication.

There are various kinds of wireless communication that we can easily contact in real life. However, since the conventional electric signal transmission method uses radio waves having a frequency of 3THz to 3THz, the transmission speed is limited.

However, since optical communication for guiding light to an optical fiber is capable of large-capacity and high-speed data communication in a short time using light having a frequency higher than that of conventional wireless communication, it is attracting attention as a wireless communication for building a next-generation high-speed information communication network.

A typical component for optical communication is a light source corresponding to an optical transmitter, an optical modulator and an optical transmission medium such as an optical fiber, an optical multiplexer, an optical amplifier, and an optical receiver. The characteristics of the optical communication include low loss, broadband, miniaturization, Is an abundance of.

In particular, the conventional radio communication requires a large antenna for transmitting and receiving, which requires a large installation cost and maintenance cost due to bad weather. In contrast, since optical communication does not require a large antenna and is economical, Is a trend that is evolving day by day.

On the other hand, in the optical communication, if the transmission / reception module is not correctly aligned, there is a disadvantage that the data transmission amount is reduced due to optical loss, optical dispersion and nonlinear optical effect. Therefore, in order to increase the transmission / reception efficiency of optical communication, need.

The following are prior art prior art for optical communication.

1. Korean Patent Publication No. 10-2010-0026773 A method and apparatus for aligning communication links using a retroreflector in visible light communication The invention of the prior art document 1 is a technique related to a communication direction alignment method using a retroreflector in visible light communication. However, the invention of the prior art document 1 has a disadvantage that it is difficult to arrange the transmitter and the receiver in a long distance which can not be visually recognized. 2. Korean Published Patent Application No. 10-2012-0053582 Optical Communication Module The invention of the prior art document 2 relates to an optical communication module that transmits and receives optical signals of different wavelength bands with one optical fiber. However, the invention of the prior art document 2 also has a disadvantage in that it is difficult to align the transmitter and the receiver in the case of a long distance which can not be visually confirmed. 3. KOKAI Publication No. 10-2016-0145957 Optical alignment method of multi-channel optical receiving module and multi-channel optical receiving module The invention of the prior art document 3 relates to a multi-channel optical receiving module and a multi-channel optical receiving module which can easily align the components constituting each channel. However, the invention of the prior art document 3 has a disadvantage in that it is difficult to arrange the transmitter and the receiver in a long distance which can not be visually confirmed.

In order to solve the above problems, an optical communication transmitter / receiver of the present invention aims at accurately aligning a transmission / reception module (alignment lens) used for optical communication with visual light.

In addition, the optical communication transmitter / receiver of the present invention is capable of increasing the transmission / reception efficiency of light between the optical communication transmitter / receivers disposed at a certain distance (visible distance) by using visual light, optical screen, .

In order to achieve the above object, the present invention has the following structure.

A visual communication transmitter and receiver capable of unidirectional data communication using light, comprising: a visual light generator (110) for generating visual light for position adjustment to be coupled to communication light of a specific wavelength; a communication light An optical coupler 130 which combines the generated visual light and the communication light to generate combined light and a control unit 130 which controls the focus and the position of the combined light to be transmitted to the receiving apparatus 200, A transmission unit 140 for transmitting the combined light of which the focus and the position are adjusted to the reception apparatus 200, a visual light generation unit 110, a communication light generation unit 120, an optical coupling unit 130, and a transmission unit 140 A transmitting apparatus 100 including a transmitting apparatus optical fiber 150 interconnecting the plurality of optical fibers 150; A combining optical processing unit 220 for processing the received combined light and a light receiving unit 210 for receiving the combined light from the receiving unit 210 And a receiving apparatus optical fiber 230 connecting the optical receiving unit 220 and the combining optical processing unit 220.

A first visual light generator 310 for generating positional adjustment visual light to be coupled to a communication light of a specific wavelength; and a second visual light generator 310 for generating data A first optical coupler 330 that combines the generated visual light and the communication light to generate combined light, and a second optical coupler 330 that transmits A first combining optical processing unit 340 for separating and processing data from the received combined light and a second combined optical processing unit 340 for adjusting the focus and position of the combined light to be transmitted to the second transceiver 400, A first transceiver 350 for transmitting the combined light to the transceiver 400 or receiving the combined light transmitted from the second transceiver 400 and a first transceiver optical fiber 360 for physically connecting the transceivers A first transmission / reception device 300; A second visual light generator 410 for generating visual light for position adjustment to be coupled to the communication light of a specific wavelength, a second communication light generator 420 for generating communication light including data in light of a specific wavelength, A second optical coupler 430 for combining the generated visual light and communication light to generate combined light, a second coupling optical coupler 430 for separating and processing data from the combined light received through the second transceiver 450, The controller 440 controls the focal point and the position of the combined light to be transmitted to the first transceiver 300 and transmits the combined light whose focus and position are adjusted to the first transceiver 300 or the first transceiver 300 And a second transceiver 400 including a second transceiver optical fiber 460 that physically connects the first transceiver 450 and the second transceiver 450 to each other.

The optical transmission / reception device of the present invention can accurately align a transmission / reception module (alignment lens) used for optical communication using visual light, and enables optical communication in a unidirectional or bidirectional manner.

Further, since the optical transmission / reception device of the present invention can increase the transmission / reception efficiency of light between the optical communication transmission / reception devices disposed at a certain distance (visible distance) using visual light, optical screen, and detection sensor, It is suitable for high-speed data communication network because loss is small.

Further, since the optical communication transmitter / receiver of the present invention is an unidirectional or bidirectional data communication using optical communication, since an antenna such as a conventional radio communication is not required, it is economical and wider application fields of optical communication are available. .

1 is a configuration diagram of Embodiment 1 of the optical communication transmitter / receiver of the present invention
2 is a conceptual diagram of Embodiment 1 of the optical communication transceiver of the present invention
Fig. 3 is an overall block diagram of Embodiment 1 of the optical transmission / reception device of the present invention
4 is a detailed block diagram of Embodiment 1 of the optical transmission / reception device of the present invention
Fig. 5 is a configuration example in which the optical screen is applied to Embodiment 1 of the optical communication transceiver of the present invention
Fig. 6 is an exemplary diagram showing focus adjustment and position adjustment of the optical transmission / reception device of the present invention
7 is a configuration diagram of Embodiment 2 of the optical communication transceiver of the present invention
8 is a detailed block diagram of Embodiment 2 of the optical transmission / reception device of the present invention
Fig. 9 is a structural example in which a light screen is applied to Embodiment 2 of the optical communication transceiver of the present invention
10 is a conceptual diagram of a second embodiment of the optical communication transmitter /

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

The optical communication transceiver according to the present invention is an arrangement for accurately aligning an alignment lens, which is one of the transceiver modules used in optical communication, by using visual light. The optical communication transceiver uses visual light, optical screen, It is possible to increase the transmission / reception efficiency of light between the optical communication transmitting / receiving devices disposed at a certain distance which can be visually confirmed, and thus is an invention suitable for an ultra high-speed data communication network with a small amount of data loss.

Therefore, the optical communication transceiver according to the present invention will be described in the following first to second embodiments.

≪ Example 1 >

2 is a conceptual diagram of a first embodiment of an optical communication transceiver according to the present invention, and Fig. 3 is a sectional view of an optical communication transceiver according to an embodiment of the present invention 1 is a detailed block diagram of Embodiment 1 of the optical communication transceiver according to the present invention. Figure 5 is a schematic block diagram of the optical communication transceiver according to Embodiment 1 of the present invention, FIG. 6 is a flow chart of focus adjustment and position adjustment of Embodiment 1 of the optical communication transceiver of the present invention.

Referring to the drawings, an optical communication transceiver according to embodiment 1 (10) of the present invention is an invention that enables unidirectional data optical communication by accurately aligning an alignment lens, which is one of transmission / reception modules used in optical communication, And includes a transmitting apparatus 100 and a receiving apparatus 200. [

Here, the transmitting apparatus 100 is configured to generate and combine communication light including data and visual light for position adjustment for data communication using light, and transmit the combined light to the receiving apparatus 200, and the receiving apparatus 200 And receives the combined light in which the communication light and the visual light transmitted from the transmitting apparatus 100 are combined.

Therefore, the transmission apparatus 100 includes a visual light generator 110, a communication light generator 120, an optical coupler 130, a transmitter 140, and a transmitter optical fiber 150.

The visual light generating unit 110 generates visual light for position adjustment, and the visual light is coupled to communication light having a specific wavelength by an optical coupling unit 130, which will be described later.

The visual light is preferably red light having a wavelength of 650 nm, but it is sufficient that the visual light of the present invention is not limited to the wavelength of 650 nm but has a wavelength of visible visible light.

The communication light generation unit 120 generates communication light by including data in a light having a specific wavelength. The optical coupling unit 130 transmits the visual light generated by the visual light generation unit 110 and the communication light And combines the communication light generated by the generating unit 120 to generate combined light.

And the light of the specific wavelength is light of 850 nm, 1310 nm, and 1550 nm band in which high-speed data of 10 gbps can be loaded.

In particular, before the focus adjustment and position adjustment of the combined light transmitted to the receiving unit 210 of the receiving apparatus 200 is completed, the communication light generating unit 120 generates communication light not including data in light of a specific wavelength When the focus adjustment and the position adjustment are completed, communication light including data in light of a specific wavelength is generated.

This is because the focus adjustment and the position adjustment are preparatory steps for the data transmission, and data transmission occurs when the data is transmitted during the preparatory process (during the mutual position adjustment between the transmitting and receiving alignment lenses).

The transmission unit 140 transmits the combined light generated in the optical coupling unit 130 to the reception device 200 and includes a transmission optical alignment lens 141, a focus adjustment unit 142, And a position adjusting means 143. [ The focus adjustment and the position adjustment of the combined light for optical communication are performed by the above configurations.

The transmitting optical alignment lens 141 transmits the combined light generated by the optical coupling unit 130 to the receiving unit 210 of the receiving apparatus 200. Specifically, The generated combined light is transmitted to the transmission light aligning lens 141 through the optical fiber 150. As shown in FIG. 2, there is a certain interval between the optical fibers 150 and the transmission light aligning lens 141, Spectroscopy of the coupled light occurs at this interval. That is, the coupling light is split at one side of the transmission light alignment lens 141 at the end of the optical fiber 150.

The focus adjusting unit 142 adjusts the focus of the combined light transmitted to the receiving unit 210 of the receiving apparatus 200. The focus adjusting unit 142 focuses the combined light on the receiving optical aligning lens 211 Adjust to the extent that it does not exceed the size.

More specifically, as shown in FIG. 6, the focus adjustment by the focus adjusting means 142 is performed by adjusting the size of the combined light to be incident on the optical screen 212 provided around the receiving optical alignment lens 211 of the receiving apparatus 200 The area of the combined light that is formed on the optical screen 212 is adjusted so that the area of the combined light formed on the optical screen 212 is equal to the size of the received light alignment lens 211 (Refer to 3. < RTI ID = 0.0 > 3 &

The position adjustment means 143 adjusts the position of the transmission light alignment lens 141 so that the combined light transmitted through the transmission light alignment lens 141 is correctly received by the reception unit 210 of the reception apparatus 200, .

More specifically, in order for the transmitted combined light to be correctly received by the receiving unit 210 of the receiving apparatus 200 without data loss, as shown in FIG. 2, the transmitting optical aligning lens 141 and the receiving optical aligning lens 211 ) Must be exactly the same.

If the mutual positions of the transmission light alignment lens 141 and the reception light alignment lens 211 are not coincident with each other, a large data loss occurs.

The position adjusting means 143 adjusts the vertical and horizontal positions of the transmission light alignment lens 141 so that the position of the transmission light alignment lens 141 is precisely aligned with the position of the reception light alignment lens 211 will be.

For adjusting the position of the transmission optical alignment lens 141, the position adjustment means 143 may include a vertical adjustment adjustment knob and a horizontal adjustment knob.

The position adjustment of the transmission light alignment lens 141 by the position adjustment means 143 will be described with reference to FIG.

As described above, in the state where the focus adjustment is completed, the convergence position of the combined light having been subjected to the adjustment of the focus is adjusted as shown in FIG. 6 (steps 4, 5 and 6) so that the position where the combined light is formed is located at the position of the reception light alignment lens 211 The position adjustment of the transmission light aligning lens 141 is completed and the mutual positions of the transmission light aligning lens 141 and the receiving light aligning lens 211 are precisely matched to complete the preparation for the combined light transmission .

The transmission device optical fiber 150 is used to physically connect the visual light generation unit 110, the communication light generation unit 120, the optical coupling unit 130, and the transmission unit 140, Is a general optical fiber or optical cable.

The receiving apparatus 200 includes a receiving unit 210 including a receiving optical alignment lens 211, a combined optical processing unit 220, and a receiving apparatus optical fiber 230.

The receiving unit 210 receives the combined light transmitted from the transmitting apparatus 100 and includes a receiving optical alignment lens 211.

2, the combined light transmitted from the transmitting apparatus 100 is received by the receiving light aligning lens 211, and the receiving light aligning lens 211 condenses the received combined light, To the receiving end of the optical fiber 230 connected to the optical fiber 230.

The combining optical processing unit 220 is configured to separate and process data from the received combined light and the receiving apparatus optical fiber 230 connects the receiving unit 210 and the combined optical processing unit 220.

The receiving unit 210 may further include an optical screen 212, a visual light sensor 213, an optical alignment determiner 214, and an alarm device 215 in addition to the receiving optical alignment lens 211. have.

The reception optical alignment lens 211 is configured to receive the combined light transmitted through the transmission optical alignment lens 141 of the transmission apparatus 100 and has a size the same as that of the transmission optical alignment lens 141.

In addition, the optical screen 212 is a kind of screen on which visual light included in the combined light is projected to facilitate focus adjustment and position adjustment of the transmitted combined light, A light sensor may be used as a sensor for sensing visual light projected on the light guide plate 212.

The optical alignment determiner 214 determines whether focus adjustment and position adjustment of the combined light are completed using the sensed value of the visual light sensor 213. The alarm device 215 may adjust focus or position The optical alignment determiner 214 informs the user that optical alignment (focus adjustment or position adjustment) for data communication is completed.

At this time, the visual light sensor 213 senses visual light projected on the light screen 212, generates a specific sensed value, and provides the sensed light to the light alignment determiner 214.

When the detection value provided by the visual light detection sensor 213 reaches the first set value, the optical alignment determination unit 214 determines that the focus adjustment is performed on the optical screen 212, Is completed.

The first set value corresponds to the area of the receiving light alignment lens 211. The fact that the detection value of the visual light sensor 213 reaches the first set value means that the light area of the visual light projected on the light screen 212 Is equal to the area of the reception light alignment lens 211, which means that focus adjustment by the focus adjustment means 142 is completed.

When the focus adjustment is completed, the alarm device 215 informs the user that focus adjustment for data communication is completed.

The position adjustment is performed after the detection value of the visual light sensing sensor 213 reaches the first setting value (after the focus adjustment is completed). The position adjustment is the same as the area of the reception light alignment lens 211 Quot; means adjusting the position of the visual light projected on the light screen 212 adjusted to have the same.

That is, as shown in FIG. 6 (see steps 4, 5 and 6 in FIG. 6), the position of the visual light projected on the optical screen 212 is adjusted by adjusting the position of the visual light projected on the optical screen 212 And is positioned so as to be located in the region of the photo-alignment lens 211. [

The detection value of the visual light detection sensor 213 gradually decreases as the position of the visual light projected onto the optical screen 212 gradually reaches the area of the reception light alignment lens 211, Position movement completed) state, the value of the value becomes 0.

Since the visual light sensing sensor 213 senses the light area of the visual light projected on the light screen 212, when the final picture of FIG. 6 (state of completion of the combined light position movement) is entered, the visual light sensing sensor 213 Since the visual light projected on the light screen 212, which can be detected by the light source 212, disappears.

The case where the detection value of the visual light detection sensor 213 is 0 is the most ideal in terms of position adjustment but actually the case in which the detection value of the visual light detection sensor 213 is less than the second set value is referred to as & The section 214 determines.

The second set value is a value corresponding to the light area of the visual light projected on the optical screen 212 which has no influence on the transmission / reception efficiency of the optical communication.

The position adjustment and focus adjustment of the coupling light for optical communication as described above are summarized below with reference to FIGS. 5 and 6. FIG.

 5, after the transmitter 100 and the receiver 200 are disposed, the visual light generator 110 of the transmitter 100 generates visual light for position adjustment and transmits the generated light to the communication light generator 120 ) Generates communication light not including data.

Next, the optical coupler 130 combines the visual light and the communication light not including the data to generate the combined light, and transmits the combined light to the receiving device 200 through the transmission optical alignment lens 141 of the transmitter 140. [ 0.0 > 212 < / RTI >

And then adjusts the light area of the combined light projected onto the transmitted light screen 212 (more precisely, visual light) using the focus adjustment means 142 to complete the focus adjustment.

The position adjustment means 143 adjusts the position adjustment so that the projection position of the combined light projected on the optical screen 212 (more precisely, the visual light) enters into the region of the reception light alignment lens 211.

When the focus adjustment and the position adjustment are completed, the optical alignment for optical communication is completed, so that the communication light generator 120 generates communication light including data, and unidirectional data optical communication is started.

≪ Example 2 >

8 is a detailed block diagram of a second embodiment of the optical communication transceiver according to the present invention, and Fig. 9 is a block diagram of the optical communication transceiver according to the second embodiment of the present invention. Fig. 5 is an exemplary view of focus adjustment and position adjustment of Embodiment 2;

2 is a perspective view illustrating an optical communication apparatus according to a second embodiment of the present invention. FIG. 2 is a perspective view illustrating an optical communication apparatus according to a second embodiment of the present invention. And comprises a device 300 and a second transceiver 400.

Here, the first transceiver 300 and the second transceiver 400 generate and combine the communication light and the position-controlling visual light, respectively, to transmit and receive data to and from each other to enable bidirectional data communication .

The first transceiver 300 includes a first visual light generator 310, a first communication light generator 320, a first optical coupler 330, a first coupling light processor 340, A first transceiver 350, and a first transceiver optical fiber 360.

The first visual light generating unit 310 generates visual light for position control and the visual light is coupled to the communication light having a specific wavelength by the first optical coupling unit 330 to be described later.

The visual light is a light having a wavelength range of visible light.

The first communication light generator 320 generates communication light by including data in a light having a specific wavelength, and the first optical coupler 330 generates the communication light by generating the communication light by the first visual light generator 310 And combines the visual light and the communication light generated by the first communication light generator 320 to generate combined light.

In particular, the first communication light generator 320 generates communication light that does not include data in light of a specific wavelength before the focus adjustment and position adjustment of the combined light transmitted to the second transceiver 400 is completed, When focus adjustment and position adjustment are completed, communication light including data in light of a specific wavelength is generated.

This is because the focus adjustment and the position adjustment are preparatory steps for the data transmission, and data transmission occurs when the data is transmitted during the preparatory process (during the mutual position adjustment between the transmitting and receiving alignment lenses).

The first combining optical processing unit 340 separates data from the combined light received through the first transmitting and receiving unit 350 and processes the data.

The first transceiver 350 controls the focal point and the position of the combined light to be transmitted to the second transceiver 400 and transmits the combined light whose focus and position are adjusted to the second transceiver 400, And receives the combined light transmitted from the apparatus 400.

For this, the first transceiver 350 is configured to include a first photo-alignment lens 351, a first focus adjustment unit 352, and a first position adjustment unit 353.

The first transceiver 350 further includes a first light screen 354, a first visual light sensing sensor 355, a first light alignment determiner 356, and a first alarm device 357 Lt; / RTI >

The first light-aligning lens 351 transmits the combined light generated by the first optical coupler 330 to the second transmitter-receiver 450 of the second transmitter-receiver 400 or the combined light generated by the second transmitter- And transmits the combined light.

More specifically, the combined light generated in the first optical coupling unit 330 is transmitted to the first optical alignment lens 351 through the optical fiber 360. As shown in FIG. 10, the optical fiber 360 and the first There is a finite constant interval between the light-aligning lenses 351, and the light of the combined light is generated at this interval. That is, the combined light is split from one end of the optical fiber 360 to one side of the first optical alignment lens 351.

On the other hand, when receiving the combined light transmitted from the second transceiver 400, the first light-aligning lens 351 condenses the received combined light and provides the combined light to the optical fiber 360 .

The first light-aligning lens 351 is preferably the same size as the second light-aligning lens 451.

The first focus adjusting unit 352 adjusts the focus of the combined light transmitted to the second transmitting and receiving unit 450 of the second transceiver 400. When the focus is adjusted, And adjusts the focal point of the combined light to a range that does not exceed the size of the second photo-alignment lens 451.

More specifically, the focus adjustment of the first focus adjustment means 352 is performed by a second optical screen 454 (see FIG. 6) provided around the second photo-alignment lens 451 of the second transceiver 400, The area of the coupling light that is formed on the second optical screen 454 is adjusted by adjusting the area of the coupling light formed on the second optical screen 454 so that the size of the coupling light of the second optical alignment lens 451 Area size mean) (refer to 3. Completing the combined optical focus adjustment in FIG. 6)

The first position adjusting means 353 adjusts the position of the first light beam so that the combined light transmitted through the first light aligning lens 351 is correctly received by the second transmitting and receiving portion 450 of the second transceiver 400. [ The position of the alignment lens 351 is adjusted up, down, left, and right.

More specifically, in order for the transmitted combined light to be correctly received by the second transmitting and receiving unit 450 of the second transceiver 400 without data loss, the first optical aligning lens 351 and the second light- The mutual positions of the second light-aligning lenses 451 must be exactly the same.

If the mutual positions of the first and second photo-alignment lenses 351 and 451 do not coincide with each other, a large data loss occurs.

The first position adjusting means 353 adjusts the position of the first photo aligning lens 351 so that the position of the first photo aligning lens 351 is adjusted to the position of the second photo aligning lens 451 To be precisely matched.

The first position adjusting means 353 may include a vertical adjustment adjusting knob and a left and right adjusting knob for adjusting the position of the first photo aligning lens 351.

The position adjustment of the first photo aligning lens 351 by the first position adjusting means 353 will be described with reference to FIG.

6 (4, 5, and 6), the position where the combined light is formed is adjusted to the position of the second optical alignment lens 451 The position adjustment of the first photo-aligning lens 351 is completed and the mutual positions of the first and second photo-aligning lenses 351 and 451 are exactly matched to each other, Is completed.

The first transceiver 350 may further include a first light screen 354, a first visual light sensing sensor 355, a first light alignment determiner 356, and a first alarm device 357 .

The first optical screen 354 may include a visual light included in the combined light transmitted from the second transceiver 400 to facilitate focus adjustment and position adjustment of the combined light transmitted from the second transceiver 400. [ And the first visual light sensing sensor 355 may apply a light sensing sensor as a sensor for sensing visual light projected on the first light screen 354.

In addition, the first light alignment determining unit 356 uses the sensed value of the first visual light sensing sensor 355 to adjust the focus of the combined light projected on the first optical screen 354, If the first light alignment determination unit 356 determines that the focus adjustment or the position adjustment is completed, the first alarm device 357 performs optical alignment (focus adjustment or position adjustment) for data communication to the user It is a configuration that notifies completion.

At this time, the first visual light sensing sensor 355 senses visual light projected on the first light screen 354, generates a specific sensed value, and provides the sensed light to the first light alignment determiner 356.

The detection value is a value for a light area of the visual light projected on the first light screen 354. The first light alignment determination unit 356 determines whether the detection value provided by the first visual light detection sensor 355 is a first When the set value is reached, it is determined that the focus adjustment is completed.

The first set value is a value corresponding to the area of the first photo-aligning lens 351. The fact that the detection value of the first visual light sensing sensor 355 has reached the first set value means that the first light- Means that the light receiving area of the first light aligning lens 351 is equal to the area of the first light aligning lens 351 and that the focus adjustment by the second focusing adjusting unit 452 of the second transceiving device 400 is completed do.

When the focus adjustment is completed, the first alarm device 357 informs the user that focus adjustment for data communication is completed.

The position adjustment is performed after the detection value of the first visual light detection sensor 355 reaches the first set value (after the focus adjustment is completed). The position adjustment is performed by adjusting the area of the first light alignment lens 351 Means to adjust the converging position of visual light projected (converged) on the first light screen 354 adjusted to have the same size.

6, the position of the visual light projected on the first light screen 354 may be adjusted to determine the position of the visual light projected on the first light screen 354 And the converging position is adjusted so as to be located in the first optical alignment lens 351 region.

The detection value of the first visual light sensing sensor 355 gradually decreases as the position where the visual light projected on the first optical screen 354 enters the first photo aligning lens 351 region, The value of the value becomes 0 when the last picture (6. the combined light position movement completed) state is reached.

The reason is that the first visual light sensing sensor 355 senses the light area of the visual light projected on the first light screen 354, so that when the last picture of FIG. 6 This is because the visual light projected on the first light screen 354, which the visual light sensing sensor 355 can detect, disappears.

The case where the detection value of the first visual light detection sensor 355 is 0 is the most ideal in terms of position control but actually the case where the detection value of the first visual light detection sensor 355 is less than the second set value is referred to as " And the first light alignment determination unit 356 determines that the first light alignment determination unit 356 determines that the first light alignment determination unit 356 has determined

The second set value is a value including 0 as a value corresponding to the light area of the visual light projected on the first optical screen 354 which has no influence on the transmission / reception efficiency of optical communication.

The first transceiver optical fiber 360 includes a first visual light generator 310, a first communication light generator 320, a first optical coupler 330, a first optical coupler 340, And is a general optical fiber or an optical cable connecting the first transceiver unit 350.

Meanwhile, the second transceiver 400 includes a second visual light generator 410, a second communication light generator 420, a second optical coupler 430, a second coupling light processor 440, 2 transmitting / receiving unit 450, and a second transceiver optical fiber 460. [

The second visual light generating unit 410 generates visual light for position adjustment, and the visual light is coupled to communication light having a specific wavelength by a second optical coupling unit 430, which will be described later.

The visual light is a light having a wavelength range of visible light.

The second communication light generating unit 420 generates communication light by including data in light of a specific wavelength and the second optical coupling unit 430 generates communication light by generating the communication light by the second visual light generating unit 410 And combines the generated visual light and the communication light generated by the second communication light generator 420 to generate combined light.

In particular, the second communication light generator 420 generates communication light that does not include data in light of a specific wavelength before the focus adjustment and position adjustment of the combined light transmitted to the first transceiver 300 is completed, When focus adjustment and position adjustment are completed, communication light including data in light of a specific wavelength is generated.

This is because the focus adjustment and the position adjustment are preparatory steps for the data transmission, and data transmission occurs when the data is transmitted during the preparatory process (during the mutual position adjustment between the transmitting and receiving alignment lenses).

The second combined optical processing unit 440 separates and processes data from the combined light received through the second transmitting and receiving unit 450.

The second transceiver 450 controls the focus and position of the combined light to be transmitted to the first transceiver 300 and transmits the combined light whose focus and position are adjusted to the first transceiver 300, And receives the combined light transmitted from the apparatus 300.

For this, the second transceiver 450 is configured to include a second photo-alignment lens 451, a second focus adjustment unit 452, and a second position adjustment unit 453.

The second transceiver 450 further includes a second optical screen 454, a second visual light sensing sensor 455, a second light alignment determiner 456, and a second alarm device 457 Lt; / RTI >

The second light-aligning lens 451 transmits the combined light generated by the second optical coupler 430 to the first transceiver 350 of the first transceiver 300 or the first transceiver 350 of the first transceiver 300, And transmits the combined light.

More specifically, the combined light generated by the second optical coupling unit 430 is transmitted to the second optical alignment lens 451 through the optical fiber 460. As shown in FIG. 2, the optical fiber 460 and the second There is a finite constant interval between the light-aligning lenses 451, and the light of the combined light occurs at this interval. That is, the combined light is split from one end of the optical fiber 460 to one side of the second optical alignment lens 451.

On the other hand, when receiving the combined light transmitted from the first transceiver 300, the second light-aligning lens 451 condenses the received combined light and provides the combined light to the optical fiber 460 .

The second light-aligning lens 451 is preferably the same size as the first light-aligning lens 351.

The second focus adjusting unit 452 adjusts the focus of the combined light transmitted to the first transceiver 350 of the first transceiver 300 and the second focus adjusting unit 452 adjusts The focal point of the combined light is adjusted to a range not exceeding the size of the first photo-alignment lens 351. [

More specifically, the focus adjustment of the second focus adjusting means 452 is performed by a first optical screen 354 (see FIG. 6) provided around the first photo aligning lens 351 of the first transceiver 300, The area of the coupling light that is formed on the first optical screen 354 is adjusted by adjusting the area of the coupling light that is formed on the first optical screen 354 to be smaller than the size of the first optical alignment lens 351 Area size mean) (refer to 3. Completing the combined optical focus adjustment in FIG. 6)

The second position adjustment means 453 adjusts the position of the second light beam so that the combined light transmitted through the second light alignment lens 451 is correctly received by the first transceiver 350 of the first transceiver 300. [ The position of the alignment lens 451 is adjusted up, down, left, and right.

More specifically, in order for the transmitted combined light to be correctly received by the first transceiver 350 of the first transceiver 300 without data loss, the first transceiver lens 351 and the second transceiver lens 352, as shown in FIG. 2, The mutual positions of the second light-aligning lenses 451 must be exactly the same.

If the mutual positions of the first and second photo-alignment lenses 351 and 451 do not coincide with each other, a large data loss occurs.

For this purpose, the second position adjusting means 453 adjusts the vertical position of the second photo aligning lens 451 so that the position of the second photo aligning lens 451 is adjusted to the position of the first photo aligning lens 351 To be precisely matched.

The second position adjusting means 453 may include a vertical adjustment adjusting knob and a left and right adjusting knob for adjusting the position of the second photo aligning lens 451.

The position adjustment of the second photo aligning lens 451 by the second position adjusting means 453 will be described with reference to FIG.

6 (4, 5 and 6), the position at which the coupling light is formed is adjusted to the position of the first optical alignment lens 351 The position adjustment of the second photo-alignment lens 451 is completed and the mutual positions of the first and second photo-alignment lenses 351 and 451 are exactly the same, Is completed.

The second transceiver 450 may further include a second optical screen 454, a second visual light sensing sensor 455, a second light alignment determiner 456, and a second alarm device 457 .

The second optical screen 454 is configured to transmit the visual light included in the combined light transmitted from the first transceiver 300 to the first transceiver 300 in order to facilitate focus adjustment and position adjustment of the combined light transmitted from the first transceiver 300. [ And the second visual light sensing sensor 455 may apply a light sensing sensor as a sensor for sensing visual light projected on the second light screen 454.

In addition, the second light alignment determining unit 456 uses the sensed value of the second visual light sensing sensor 455 to adjust the focus of the combined light projected on the second optical screen 454, If the second light alignment determination unit 456 determines that the focus adjustment or the position adjustment is completed and the second alarm device 457 determines that the optical alignment (focus adjustment or position adjustment) for data communication is not performed It is a configuration that notifies completion.

At this time, the second visual light sensing sensor 455 senses visual light projected on the second optical screen 454, generates a specific sensed value, and provides the sensed light to the second light alignment determiner 456.

The second light alignment determination unit 456 determines that the sensing value provided by the second visual light sensing sensor 455 is a value corresponding to the first area of the first light alignment sensor 455, When the set value is reached, it is determined that the focus adjustment is completed.

The first set value is a value corresponding to the area of the second optical alignment lens 451. The fact that the detection value of the second visual light detection sensor 455 reaches the first set value means that the projection Means that the optical area of the visual light of the first transceiver 300 is equal to the area of the second optical alignment lens 451 and that the focus adjustment by the first focus adjustment means 352 of the first transceiver 300 is completed do.

When the focus adjustment is completed, the second alarm device 457 informs the user that focus adjustment for data communication is completed.

On the other hand, the position adjustment is performed after the detection value of the second visual light sensing sensor 455 reaches the first set value (after the focus adjustment is completed). The position adjustment is performed by adjusting the area of the second light alignment lens 451 The position of the visual light projected on the second light screen 454 whose focus is adjusted to have the same size is positioned in the area of the second photo-alignment lens 451 so that the first position adjustment of the first transceiver 300 Means 353 is used to adjust.

6, the position of the visual light projected on the second light screen 454 is adjusted to adjust the position of the visual light projected on the second light screen 454 And the converging position is adjusted to be located in the second photo-aligned lens 451 region.

The detection value of the second visual light detection sensor 455 gradually decreases as the position where the visual light projected on the second optical screen 454 reaches the second light alignment lens 451, The value of the value becomes 0 when the last picture (6. the combined light position movement completed) state is reached.

Since the second visual light sensing sensor 455 senses the light area of the visual light projected on the second light screen 454, when the final picture of FIG. 6 is reached This is because the visual light projected on the second light screen 454, which the visual light sensing sensor 455 can detect, disappears.

The case where the detection value of the second visual light detection sensor 455 is 0 is the most ideal in terms of the position adjustment but actually the case where the detection value of the second visual light detection sensor 455 is less than the second set value is referred to as The second light alignment determination unit 456 determines that the second light alignment is in progress.

The second set value is a value including 0 as a value corresponding to the light area of the visual light projected on the second optical screen 454 which has no influence on the transmission / reception efficiency of the optical communication.

The second transceiver optical fiber 460 includes a second visual light generator 410, a second communication light generator 420, a second optical coupler 430, a second optical coupler 440, And a general optical fiber or an optical cable connecting the second transmission / reception unit 450.

The optical communication transceiver according to the present invention is unidirectional or bi-directional data communication using optical communication, and since an antenna such as a conventional radio communication is not required, it is economical and widespread application fields for optical communication are also increased in industrial applicability.

10: Transmitting / receiving device for optical communication Example 1
20: Transmitting / receiving device for optical communication Example 2
100: transmitting apparatus
110: Visual light generator
120: communication light generating unit 130: optical coupling unit
140 transmission unit 141 transmission optical alignment lens
142: Focus adjustment means 143: Position adjustment means
150: transmitting device optical fiber
200: Receiver
210: Receiving unit 211: Receiving light alignment lens
212: light screen 213: visual light sensor
214: optical alignment determination unit 215: alarm device
220: combining optical processing unit 230: receiving device optical fiber
300: first transceiver
310: first visual light generator
320: first communication light generator 330: first optical coupler
340: first combining optical processing unit 350: first transmission /
351: first optical alignment lens 352: first focus alignment means
353: first position adjustment means 354: first light screen
355: first visual light sensing sensor 356: first light alignment determination unit
357: first alarm device 360: first transceiver optical fiber
400: second transceiver
410: second visual light generator
420: second communication light generator 430: second optical coupler
440: second coupling optical processing unit 450: second transmission /
451: second optical alignment lens 452: second focus adjustment means
453: second position adjusting means 454: second optical screen
455: second visual light sensing sensor 456: second light alignment determination unit
457: second alarm device 460: second transceiver optical fiber

Claims (12)

An optical communication transmitter / receiver capable of unidirectional data communication using light,
A visual light generator 110 for generating visual light for position adjustment to be coupled to communication light of a specific wavelength, a communication light generator 120 for generating communication light including data in light of a specific wavelength, An optical coupler 130 for combining the light and the communication light to generate combined light, a condenser for adjusting the focal point and the position of the combined light to be transmitted to the receiving device 200, And a transmitter optical fiber 150 for interconnecting the visual light generator 110 and the communication light generator 120 and the optical coupler 130 and the transmitter 140. [ An apparatus 100;
A receiving unit 210 including a receiving optical alignment lens 211 for receiving the combined light transmitted from the transmitting apparatus 100, a combined optical processing unit 220 for separating and processing data from the received combined light, And a receiving device (200) including a receiving device optical fiber (230) connecting the receiving part (210) and the combining optical processing part (220). The method according to claim 1,
The transmission unit 140
A transmission light alignment lens 141 for transmitting the combined light generated by the optical coupling unit 130 to the reception unit 210 of the reception device 200,
A focus adjusting unit 142 for adjusting a focus of the combined light transmitted to the receiving unit 210 of the receiving apparatus 200,
A position adjustment means 143 for adjusting the position of the transmission light alignment lens 141 in the up, down, left, or right direction so that the combined light transmitted through the transmission light alignment lens 141 is correctly received by the reception unit 210 of the reception apparatus 200 ) For transmitting and receiving an optical signal. The method according to claim 1 or 2,
The communication light generating unit 120 generates communication light without data before the focus adjustment and position adjustment of the combined light transmitted to the receiving unit 210 of the receiving apparatus 200 is completed, And after the adjustment is completed, generates communication light including data. The method according to claim 1 or 2,
Wherein the receiving unit (210) further comprises an optical screen (212) on which visual light included in the combined light is projected to facilitate focus adjustment and position adjustment of the combined light. The method of claim 4,
The receiving unit 210,
A visual light sensing sensor 213 for sensing visual light projected on the light screen 212;
A light alignment determiner 214 for determining whether focus adjustment and position adjustment of the combined light is completed using the sensed value of the visual light sensor 213;
And an alarm device (215) for informing the user that the optical alignment for data communication is completed when the optical alignment determiner (214) determines that the focus adjustment and the position adjustment are completed. The method of claim 5,
The sensed value of the visual light sensor 213 is a value for a light area of the visual light projected on the light screen 212,
The optical alignment determination unit 214 determines,
When the detection value of the visual light detection sensor 213 reaches the first set value, it is determined that the focus adjustment is completed,
When the detection value of the visual light detection sensor (213) reaches the first set value and then gradually decreases to be less than the second set value, it is determined that the position adjustment is completed. An optical communication transmitter / receiver capable of bidirectional data communication using light,
A first visual light generator 310 for generating visual light for position adjustment to be coupled to communication light of a specific wavelength, a first communication light generator 320 for generating communication light including data in light of a specific wavelength, A first optical coupler 330 for coupling the generated visual light and communication light to generate combined light, a first coupler 330 for separating and processing data from the combined light received through the first transceiver 350, The processing unit 340 and the second transceiver 400 may control the focal point and the position of the combined light to be transmitted to the second transceiver 400 and transmit the combined light whose focus and position are adjusted to the second transceiver 400, A first optical transmitter 310, a first communication light generator 320, a first optical coupler 330, and a first coupler 330. The first transmitter light receiver 310 receives the combined light transmitted from the first optical transmitter 310, A first transceiver 300 including a first transceiver optical fiber 360 connecting the optical processor 340 and the first transceiver 350;
A second visual light generator 410 for generating visual light for position adjustment to be coupled to the communication light of a specific wavelength, a second communication light generator 420 for generating communication light including data in light of a specific wavelength, A second optical coupler 430 for combining the generated visual light and communication light to generate combined light, a second coupling optical coupler 430 for separating and processing data from the combined light received through the second transceiver 450, The controller 440 controls the focal point and the position of the combined light to be transmitted to the first transceiver 300 and transmits the combined light whose focus and position are adjusted to the first transceiver 300 or the first transceiver 300 A second optical transmitter 410, a second communication light generator 420, a second optical coupler 430, and a second coupler 430. The second optical transmitter 450 is coupled to the second optical transmitter 450, And a second transceiver 400 including a second transceiver optical fiber 460 connecting the optical processing unit 440 and the second transceiver 450 Receiving unit. The method of claim 7,
The first transmission / reception unit 350,
A first optical alignment lens 351 for transmitting the combined light generated by the first optical coupler 330 to the second transmitter / receiver 450 of the second transceiver 400,
A first focus adjustment unit 352 for adjusting the focus of the combined light transmitted to the second transmission / reception unit 450 of the second transceiver 400,
The position of the first photo-aligning lens 351 is shifted up and down and left and right so that the combined light transmitted through the first photo-aligning lens 351 is correctly received by the second transmitter-receiver 450 of the second transmitter- (353) which adjusts the position of the first positioning member

The second transceiver (450)
A second photo-alignment lens 451 for transmitting the combined light generated by the second optical coupler 430 to the first transceiver 350 of the first transceiver 300,
A second focus adjusting unit 452 for adjusting the focus of the combined light transmitted to the first transmitting and receiving unit 350 of the first transceiver 300,
The position of the second photo aligning lens 451 is moved up and down and left and right so that the combined light transmitted through the second photo aligning lens 451 is correctly received by the first transmitting and receiving unit 350 of the first transceiver 300 And a second position adjustment means (453) for adjusting the position of the optical fiber. The method according to claim 7 or 8,
The first communication light generating unit 320 and the second communication light generating unit 420 generate communication light not including data before the focus adjustment and position adjustment of the transmitted combined light are completed, And generates communication light including data after the adjustment and the position adjustment are completed. The method according to claim 7 or 8,
The first transceiver 350 may further include a first optical screen 354 on which visual light included in the combined light is projected to facilitate focus adjustment and position adjustment of the combined light,
The second transceiver (450) further includes a second optical screen (454) through which visual light included in the combined light is projected to facilitate focus adjustment and position adjustment of the combined light. . The method of claim 10,
The first transmission / reception unit 350,
A first visual light sensing sensor 355 for sensing visual light projected on the first light screen 345;
A first light alignment determination unit 356 for determining whether focus adjustment and position adjustment of the combined light are completed using the sensed value of the first visual light sensing sensor 355;
Further comprising a first alarm device (357) for notifying a user that the optical alignment for data communication is completed when the first light alignment determiner (356) determines that focus adjustment and position adjustment are completed,
The second transceiver (450)
A second visual light sensing sensor 455 for sensing visual light projected on the second light screen 445;
A second light alignment determiner 456 for determining whether focus adjustment and position adjustment of the combined light are completed using the sensed value of the second visual light sensing sensor 455;
And a second alarm device (457) for informing the user that the optical alignment for data communication is completed when the second light alignment determiner (456) determines that the focus adjustment and the position adjustment are completed. Receiving device. The method of claim 11,
The sensing values of the first visual light sensing device 355 and the second visual light sensing device 455 may be values for a light area of a visual light projected on the optical screen,
The first light alignment determination unit 356,
When the detection value of the first visual light sensing sensor 355 reaches the first set value, it is determined that the focus adjustment is completed,
When the detection value of the first visual light detection sensor 355 reaches the first set value and then decreases gradually to be less than the second set value, it is determined that the position adjustment is completed,
The second light alignment determination unit 456,
When the detection value of the second visual light detection sensor 455 reaches the first set value, it is determined that the focus adjustment is completed,
Wherein the controller determines that the position adjustment is completed when the sensed value of the second visual light sensing sensor 455 reaches the first set value and then gradually decreases to be less than the second set value.

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