KR20230082074A - Wireless tranceiving apparatus for transmitting and receiving massive data - Google Patents

Abstract

A wireless transmitting and receiving device according to the present disclosure comprises: a wireless transmitting device and a wireless receiving device to transmit and receive massive data such as high-resolution image data or network data by using a parallel optical signal. The wireless transmitting device comprises: a first optical cable connecting terminal which receives a pulse laser optical signal from a converting unit for converting the massive data into the pulse laser optical signal; a first meniscus lens which is separated from the optical cable connecting terminal by a first distance (L1), and collects the pulse laser optical signal scattered from the optical cable connecting terminal; and a first convex lens which is separated from the first meniscus lens by a second distance (L2), and converts the pulse laser optical signal into the parallel optical signal.

Description

Wireless transmission and reception device for transmitting and receiving large amounts of data

Embodiments of the present invention relate to a wireless transmission/reception device for transmitting/receiving large-capacity data such as high-resolution image data or network data. More specifically, the wireless transmission/reception device according to the present disclosure transmits or receives image data using laser light.

There are various types of wireless communication that we easily encounter in real life. However, since wireless communication using an existing electrical signal transmission method uses radio waves with a frequency of 3 kHz to 3 THz, the data transmission rate per second is limited.

However, optical communication that transmits light through optical fiber is spotlighted as a wireless communication for building a next-generation high-speed information communication network because it enables high-capacity and high-speed data communication in a short time by using light with a wide bandwidth in a larger frequency domain than conventional wireless communication. are receiving

Common components for optical communication are a light source corresponding to an optical transmitter, an optical modulator, an optical fiber as an optical transmission medium, an optical multiplexer, an optical amplifier, and an optical receiver. The characteristics of optical communication are low loss, broadband, miniaturization, non-conductivity, and material resources. is the abundance of

In particular, conventional radio communications require large antennas for transmission and reception, requiring high installation costs and maintenance costs due to bad weather, whereas optical communications are economical because they do not require large antennas. is a trend that is evolving day by day.

On the other hand, optical communication has a disadvantage in that the amount of data transmission is reduced due to optical loss, optical dispersion, and nonlinear optical effects if the transmission and reception modules are not accurately aligned. need.

Republic of Korea Patent Publication No. 10-2010-0026773 Republic of Korea Patent Publication No. 10-2012-0053582 Republic of Korea Patent Publication No. 10-2016-0145957

A wireless transmitting and receiving device according to an embodiment of the present disclosure includes a wireless transmitting device and a wireless receiving device for transmitting and receiving large amounts of data using parallel optical signals, and the wireless transmitting device converts the large amount of data into pulsed laser light signals. A first optical cable connection terminal for receiving a pulsed laser light signal from a conversion unit, a first optical cable connection terminal spaced apart from the optical cable connection terminal by a first distance (L1), and collecting the pulsed laser light signal scattered from the optical cable connection terminal. It includes a first meniscus lens and a first convex lens spaced apart from the first meniscus lens by a second distance L2 and converting a pulsed laser light signal into a parallel light signal.

The first optical cable connection terminal of the wireless transceiver according to an embodiment of the present disclosure is connected to the conversion unit by a transmission optical cable, surrounds an outer circumferential surface of an end of the transmission optical cable, and a reflector guide for limiting scattering of the pulsed laser light signal. Including, the reflector guide extends from the end of the core of the transmission optical cable in the traveling direction of the pulsed laser light signal.

The length of the reflector guide of the wireless transceiver according to an embodiment of the present disclosure extending from the end of the core of the transmission optical cable in the traveling direction of the pulsed laser light signal is greater than or equal to (2 * L1 * r) / d1, and L1 is the first distance, r is the radius of the transmission optical cable, and d1 is the diameter of the first meniscus lens.

The wavelength of the pulsed laser light signal of the wireless transceiver according to an embodiment of the present disclosure uses at least one wavelength of the near-infrared and mid-infrared wavelength bands.

An incident surface of the first meniscus lens of the wireless transceiver according to an embodiment of the present disclosure faces the first optical cable connection terminal, and an exit surface of the first meniscus lens faces the first convex lens.

A wireless receiving device of a wireless transmitting/receiving device according to an embodiment of the present disclosure includes a second convex lens for irradiating a parallel optical signal for mass data received from the wireless transmitting device with a second meniscus lens, and from the second convex lens. A second meniscus lens spaced apart by a second distance (L2) and configured to irradiate the optical signal irradiated from the second convex lens to the core of the receiving optical cable connected to the second optical cable connection terminal, and the second meniscus and a second optical cable connection terminal for transmitting the pulsed optical signal received from the lens to the inverse conversion unit using the receiving optical cable.

The second optical cable connection terminal of the wireless transceiver according to an embodiment of the present disclosure is connected to the inverse conversion unit by a receiving optical cable, surrounds an outer circumferential surface of an end of the receiving optical cable, and transmits a pulsed optical signal received from the second meniscus lens. and a reflector guide for gathering them into the receiving optical cable, and the reflector guide extends from the end of the core of the receiving optical cable in the direction of the second meniscus lens.

The length of the reflector guide of the wireless transceiver according to an embodiment of the present disclosure extending from the end of the core of the receiving optical cable in the direction of the second meniscus lens is less than or equal to (2 * L1 * r) / d1, L1 is the distance from the second optical cable connection terminal to the second meniscus lens, r is the radius of the receiving optical cable, and d1 is the diameter of the second meniscus lens.

In addition, a program for implementing the method of operating the wireless transceiver as described above may be recorded in a computer-readable recording medium.

In order to transmit and receive large amounts of data, it is possible to wirelessly transmit and receive large-sized data such as high-resolution images and network data without having to connect wires.

1 is a diagram showing a wireless transmission device according to an embodiment of the present disclosure.
2 shows a cross-section of an optical cable connection terminal according to an embodiment of the present disclosure.
3 shows a meniscus lens according to an embodiment of the present disclosure.
4 shows a convex lens according to an embodiment of the present disclosure.
5 is a diagram illustrating a wireless receiving device according to an embodiment of the present disclosure.
6 is a diagram illustrating a control unit included in a wireless transmission/reception apparatus according to an embodiment of the present disclosure.

Advantages and features of the disclosed embodiments, and methods of achieving them, will become apparent with reference to the following embodiments in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms, only the present embodiments make the present disclosure complete, and those of ordinary skill in the art to which the present disclosure belongs It is provided only to fully inform the person of the scope of the invention.

Terms used in this specification will be briefly described, and the disclosed embodiments will be described in detail.

The terms used in this specification have been selected from general terms that are currently widely used as much as possible while considering the functions in the present disclosure, but they may vary according to the intention of a person skilled in the related field, a precedent, or the emergence of new technologies. In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the invention. Therefore, terms used in the present disclosure should be defined based on the meaning of the term and the general content of the present disclosure, not simply the name of the term.

Expressions in the singular number in this specification include plural expressions unless the context clearly dictates that they are singular. Also, plural expressions include singular expressions unless the context clearly specifies that they are plural.

When it is said that a certain part "includes" a certain component throughout the specification, it means that it may further include other components without excluding other components unless otherwise stated.

Also, the term “unit” used in the specification means a software or hardware component, and “unit” performs certain roles. However, "unit" is not meant to be limited to software or hardware. A “unit” may be configured to reside in an addressable storage medium and may be configured to reproduce on one or more processors. Thus, as an example, “unit” can refer to components such as software components, object-oriented software components, class components and task components, processes, functions, properties, procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays and variables. Functionality provided within components and "parts" may be combined into fewer components and "parts" or further separated into additional components and "parts".

According to an embodiment of the present disclosure, “unit” may be implemented as a processor and a memory. The term “processor” should be interpreted broadly to include general-purpose processors, central processing units (CPUs), microprocessors, digital signal processors (DSPs), controllers, microcontrollers, state machines, and the like. In some circumstances, “processor” may refer to an application specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate array (FPGA), or the like. The term "processor" refers to a combination of processing devices, such as, for example, a combination of a DSP and a microprocessor, a combination of a plurality of microprocessors, a combination of one or more microprocessors in conjunction with a DSP core, or any other such configuration. may also refer to

The term "memory" should be interpreted broadly to include any electronic component capable of storing electronic information. The term memory includes random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), programmable read-only memory (PROM), erasable-programmable read-only memory (EPROM), electrical may refer to various types of processor-readable media, such as erasable PROM (EEPROM), flash memory, magnetic or optical data storage, registers, and the like. A memory is said to be in electronic communication with the processor if the processor can read information from and/or write information to the memory. Memory integrated with the processor is in electronic communication with the processor.

Hereinafter, with reference to the accompanying drawings, embodiments will be described in detail so that those skilled in the art can easily carry out the embodiments. And in order to clearly describe the present disclosure in the drawings, parts irrelevant to the description are omitted.

1 is a diagram showing a wireless transmission device according to an embodiment of the present disclosure.

The wireless transmission/reception device may be a device for transmitting/receiving large-capacity data using parallel optical signals. The wireless transmission/reception device may include the wireless transmission device 100 and the wireless reception device 500 . The wireless transmission device 100 and the wireless reception device 500 may have the same structure. When located on the transmitting side, it becomes the wireless transmission device 100, and when located on the receiving side, it can become the wireless receiving device 500. The wireless transmitting device 100 may generate and transmit the parallel optical signal 140, and the wireless receiving device 500 may receive the parallel optical signal 140.

The wireless transmission device 100 may receive a pulsed laser light signal from a laser diode (LD), convert large amount of data into a parallel light signal, and transmit the parallel light signal. The wireless transmission device 100 and the wireless reception device 500 may be located on a straight line. The wireless receiving device 500 may receive the parallel optical signal and convert it back into a pulsed optical signal. In addition, a pulsed optical signal may be recognized using a photodiode (PD; photoelectric sensor) connected to the wireless receiving device 500 .

The wireless transmission device 100 may include a first optical cable connection terminal 130 for receiving the pulsed laser light signal from the conversion unit 150 that converts mass data into a pulsed laser light signal. The first optical cable connection terminal 130 may be a transmission optical cable connection terminal. The conversion unit 150 may convert large amount of data into a pulse form. When converting large-capacity data, the conversion unit 150 may compress the large-capacity data using a standard or non-standard method. A pulsed laser light signal may be generated based on the converted pulse using a laser diode (LD). The pulsed laser light signal may be transmitted through the optical cable 160 . A wavelength of the pulsed laser light signal may be one of a near-infrared ray and a mid-infrared ray wavelength band. One end of the optical cable 160 may be connected to the first optical cable connection terminal 130, and the other end of the optical cable 160 may be connected to the conversion unit 150.

The first optical cable connection terminal 130 may be connected to the conversion unit 150 by a transmission optical cable 160 . The wireless transmission device 100 may receive a pulsed laser light signal using the first optical cable connection terminal 130 . The first optical cable connection terminal 130 may allow the pulsed laser light signal received from the optical cable 160 to be irradiated into the wireless transmission device 100 . The pulsed laser light signal may be scattered inside the wireless transmission device 100. The wireless transmission device 100 may include a reflector guide for limiting scattering of the pulsed laser light signal.

2 shows a cross-section of an optical cable connection terminal according to an embodiment of the present disclosure.

The first optical cable connection terminal 130 may include a reflector guide 210 . When the optical cable 160 is connected to the first optical cable connection terminal 130, the optical cable 160 may be inserted into the reflector guide 210. The reflector guide 210 may have a cylindrical shape. The reflector guide 210 may surround a portion of the outer circumferential surface of the transmission optical cable 160 . The reflector guide 210 may be configured to limit scattering of the pulsed laser light signal. That is, the reflector guide 210 may be configured to limit the scattering angle 220 of the pulsed laser light signal. The inner circumferential surface of the reflector guide 210 may include a material capable of reflecting a pulsed laser light signal. Therefore, when the pulsed laser light signal irradiated from the end of the optical cable 160 reaches the inner circumferential surface of the reflector guide 210, the reflector guide 210 transmits the pulsed laser light signal to the first meniscus lens 110. can be sent The reflector guide 210 may extend from the end 161 of the core of the transmission optical cable 160 toward the first optical cable connection terminal 130 in the traveling direction 230 of the pulsed laser light signal. That is, the reflector guide 210 may extend from the end 161 of the optical cable 160 in the longitudinal direction. Accordingly, the scattering angle 220 of the pulsed laser light signal of the reflector guide 210 may be limited.

A length (e) of the reflector guide 210 extending from the end 161 of the core of the transmission optical cable in the traveling direction of the pulsed laser light signal may be greater than (2 * L1 * r)/d1. Here, L1 may be the first distance. The first distance may be a distance from the first meniscus lens 110 to the optical cable connection terminal. r is the radius of the transmission optical cable 160, and d1 may be the diameter of the first meniscus lens. r can be much smaller than d1. For example, r may be less than 1/10 of d1.

Referring back to FIG. 1 , the wireless transmission device 100 may include a first meniscus lens 110 . The first meniscus lens 110 may be spaced apart from the optical cable connection terminal by a first distance L1. Also, the first meniscus lens 110 may be configured to collect pulsed laser light signals scattered from the first optical cable connection terminal 130 . The first distance L1 may be greater than or equal to 25 mm and less than or equal to 45 mm. The first distance L1 may be, for example, 35 mm. However, it is not limited thereto.

An incident surface of the first meniscus lens 110 may face the first optical cable connection terminal 130 . Also, the exit surface of the first meniscus lens 110 may face the first convex lens 120 . The incident surface may be a surface on which the pulsed laser light signal is incident to the first meniscus lens 110 , and the output surface may be a surface on which the pulsed laser light signal exits the first meniscus lens 110 .

The wireless transmission device 100 may include a first convex lens 120 . Both the incident surface and the exit surface of the first convex lens 120 may be convex. The incident surface may be a surface on which the pulsed laser light signal is incident to the first convex lens 120 , and the output surface may be a surface on which the pulsed laser light signal exits the first convex lens 120 . The first convex lens 120 may be spaced apart from the first meniscus lens 110 by a second distance L2. In addition, the first convex lens 120 may be configured to convert a pulsed laser light signal into a parallel light signal. The diameter of the first convex lens 120 may be greater than or equal to the diameter of the first meniscus lens 110 . An optical axis of the first convex lens 120 may coincide with an optical axis of the first meniscus lens 110 .

A parallel optical signal emitted from the exit surface of the first convex lens 120 may be transmitted to the wireless receiving device 500 .

3 shows a meniscus lens according to an embodiment of the present disclosure.

In the present disclosure, the meniscus lens may include a first meniscus lens 110 and a second meniscus lens 510 . The meniscus lens may be a positive meniscus lens. The meniscus lens may include a first surface 311 and a second surface 312 . When the first surface 311 is an incident surface, the second surface 312 may be an exit surface. Also, when the first surface 311 is an exit surface, the second surface 312 may be an incident surface. In the case of the wireless transmission device 100, the second surface 312 may be an incident surface and the first surface 311 may be an exit surface. Conversely, in the case of the wireless receiving device 500, the first surface 311 may be an incident surface, and the second surface 312 may be an exit surface. Hereinafter, the first meniscus lens 110 will be mainly described. Since a description of the second meniscus lens 510 is the same as that of the first meniscus lens 110, a detailed description thereof will be omitted.

The parallel optical signals may be incident on the first surface 311 of the first meniscus lens 110 and converged at a focal point. That is, when the first surface 311 of the first meniscus lens 110 becomes the incident surface, parallel optical signals may be focused at a focal point. In order to check whether parallel optical signals are focused at a focal point by the first meniscus lens 110, the focal position is separated from the principal point H' of the first meniscus lens 110 by the focal distance f1. By installing a photodiode sensor in the 320 , it is possible to check whether or not the light incident on the first surface 311 of the first meniscus lens 110 is concentrated. Here, the principal point H' may mean a plane on which incident light is refracted. The focal length of the first meniscus lens 110 at the principal point H' may be equal to f1. f1 may be greater than or equal to 20 mm and less than or equal to 40 mm. Also, f1 may be 37 mm. The focal length f1 of the first meniscus lens 110 may be determined based on at least one of the edge thickness, the center thickness, and the position of the principal point H' of the lens.

The diameter d1 of the first meniscus lens 110 may be greater than or equal to 10 mm and less than or equal to 30 mm. More specifically, the diameter d1 of the first meniscus lens 110 may be 21 mm.

The radius of curvature R1vx of the first surface 311 of the first meniscus lens 110 may be greater than or equal to 50 mm and less than or equal to 70 mm. Also, the radius of curvature R1cv of the second surface 312 of the first meniscus lens 110 may be greater than or equal to 50 mm and less than or equal to 70 mm. The radius of curvature R1vx of the first surface 311 may be the same as the radius of curvature R1cv of the second surface 312 . The radius of curvature R1vx of the first surface 311 and the radius of curvature R1cv of the second surface 312 may be 65.28 mm. However, it is not limited thereto.

The edge thickness Te of the first meniscus lens 110 may be the same as the center thickness Tc. The edge thickness Te of the first meniscus lens 110 may be greater than or equal to 1 mm and less than or equal to 3 mm. For example, the edge thickness Te of the first meniscus lens 110 may be 2.3 mm. The center thickness Tc of the first meniscus lens 110 may be greater than or equal to 1 mm and less than or equal to 3 mm. For example, the center thickness Te of the first meniscus lens 110 may be 2.3 mm.

4 shows a convex lens according to an embodiment of the present disclosure.

In the present disclosure, the convex lens may include a first convex lens 120 and a second convex lens 520 . The convex lens may include a third surface 411 and a fourth surface 412 . When the third surface 411 is an incident surface, the fourth surface 412 may be an emission surface. Also, when the third surface 411 is an exit surface, the fourth surface 412 may be an incident surface. In the case of the wireless transmission device 100, the fourth surface 412 may be an incident surface and the third surface 411 may be an exit surface. Conversely, in the case of the wireless receiving device 500, the third surface 411 may be an incident surface and the fourth surface 412 may be an exit surface. Hereinafter, the first convex lens 120 will be mainly described. Since the description of the second convex lens 520 is the same as that of the first convex lens 120, a detailed description thereof will be omitted.

The diameter d2 of the first convex lens 120 may be greater than or equal to 15 mm and less than or equal to 35 mm. For example, the diameter of the first convex lens 120 may be 25 mm. However, it is not limited thereto. The radius of curvature of the first convex lens 120 may be greater than or equal to 70 mm and less than or equal to 90 mm. For example, the radius of curvature of the first convex lens 120 may be 78.62 mm. However, it is not limited thereto. Also, the center thickness t2 of the first convex lens 120 may be greater than or equal to 3 mm and less than or equal to 5 mm. For example, the center thickness t2 of the first convex lens 120 may be 4 mm. In addition, the thickness ti of the edge of the first convex lens 120 may be greater than or equal to 1 mm and less than or equal to 3 mm. For example, the edge thickness ti of the first convex lens 120 may be 2 mm. However, it is not limited thereto.

The focal length f2 of the first convex lens 120 may be a straight line from the main point H of the first convex lens 120 to the focal point 420 of the first convex lens 120 . The focal length f2 may be determined based on the radii of curvature R21 and R22 of the first convex lens 120 and the refractive index n. For example, if it is assumed that the incident ray is parallel light, the focal length calculation formula is as follows.

Here, R21 = R22 = R2 may be. R21 and R22 may be radii of curvature of the first convex lens 120 . n may be greater than or equal to about 1.0 and less than or equal to 2.5. For example, n may be 1.89. f2 may be about k * R2. k is a real number and may be greater than or equal to 0.1 and less than or equal to 1. For example, k may be 0.56. However, it is not limited thereto.

When the wireless transmission device 100 is implemented as described above, it has been confirmed that the wireless transmission device 100 can transmit a large amount of data over 20 meters. In addition, it was confirmed that the wireless receiving device 500 may have the same structure as the wireless transmitting device 100, and normally receive large amounts of data at a distance of 20 meters or more from the wireless transmitting device 100. In addition, since the size of the above-mentioned lens is relatively small, a miniaturized transceiver can be implemented, so that users can easily place the transceiver.

As described above, since the configurations of the wireless transmission device 100 and the wireless reception device 500 are the same, there is no need to implement the wireless transmission device 100 and the wireless reception device 500 separately, which has an economical advantage.

5 is a diagram illustrating a wireless receiving device according to an embodiment of the present disclosure.

As already described, the wireless transmission device 100 and the wireless reception device 500 may have the same structure. Therefore, if the wireless transmission device 100 is used in the receiving side, it may become the wireless reception device 500. In addition, all descriptions of the wireless transmission device 100 may be applied to the wireless reception device 500. Hereinafter, the wireless receiving device 500 will be described, and a description overlapping with that of the wireless transmitting device 100 will be omitted.

The distance between the wireless transmission device 100 and the wireless reception device 500 may be 20 meters or more and 30 meters or less. However, it is not limited thereto, and the distance between the wireless transmission device 100 and the wireless reception device 500 may be less than 20 meters or greater than 30 meters. The wireless receiving device 500 may receive parallel optical signals from the wireless transmitting device 100 .

The wireless receiving device 500 may include a second convex lens 520 . The structure of the second convex lens 520 may be the same as that of the first convex lens 120 . The second convex lens 520 may be configured to irradiate the second meniscus lens 510 with a parallel optical signal for the mass data received from the wireless transmission device 100 .

The wireless receiving device 500 may include a second meniscus lens 510 . The structure of the second meniscus lens 510 may be the same as that of the first meniscus lens 110 . The second meniscus lens 510 may be spaced apart from the second convex lens 520 by a second distance L2. In addition, the second meniscus lens 510 may be configured to irradiate the optical signal irradiated from the second convex lens 520 to the core of the receiving optical cable 560 connected to the second optical cable connection terminal 530. . An optical axis of the second convex lens 520 may coincide with an optical axis of the second meniscus lens 510 .

The wireless receiving device 500 may include a second optical cable connection terminal 530 . The second optical cable connection terminal 530 may receive a pulsed optical signal from the second meniscus lens 510 . In addition, the second optical cable connection terminal 530 may be configured to transmit the pulsed optical signal received from the second meniscus lens 510 to the inverse conversion unit 550 using the receiving optical cable 560 . The second optical cable connection terminal 530 may be connected to the inverse conversion unit 550 by a receiving optical cable. One end of the receiving optical cable may be connected to the second optical cable connection terminal 530, and the other end of the receiving optical cable may be connected to the inverse conversion unit 550.

The second optical cable connection terminal 530 may include a reflector guide. An outer circumferential surface of an end of the receiving optical cable toward the second optical cable connection terminal may be surrounded by a reflector guide. The reflector guide may collect the pulsed optical signals received from the second meniscus lens 510 into the receiving optical cable. An inner circumferential surface of the reflector guide may be made of a material capable of reflecting an optical signal. Accordingly, when the pulsed optical signal received from the second meniscus lens 510 reaches the inner circumferential surface of the reflector guide, the reflector guide may reflect the light and transmit the light to the core of the receiving optical cable.

The reflector guide of the wireless receiving device 500 may extend in the direction of the second meniscus lens 510 from the end of the core of the receiving optical cable toward the second optical cable connection terminal. The length of the reflector guide extending from the end of the second optical cable connection terminal 530 side of the core of the receiving optical cable in the direction of the second meniscus lens 510 is less than or equal to (2 * L1 * r)/d1. can Here, L1 is the distance from the second optical cable connection terminal 530 to the second meniscus lens 510, r is the radius of the receiving optical cable, and d1 can be the diameter of the second meniscus lens 510. there is. The distance from the second optical cable connection terminal 530 to the second meniscus lens 510 may be the same as the distance from the first optical cable connection terminal 130 to the first meniscus lens 110 . Also, the radius of the receiving optical cable may be the same as that of the transmitting optical cable. Also, the diameter of the second meniscus lens 510 may be the same as that of the first meniscus lens 110 .

The inverse conversion unit 550 may convert the optical signal into mass data. When inversely transforming the optical signal data, the inverse transform unit 550 may decompress using a standard or non-standard method.

6 is a diagram illustrating a control unit included in a wireless transmission/reception apparatus according to an embodiment of the present disclosure.

Referring to FIG. 6 , each of the wireless transmission device 100 and the wireless reception device 500 included in the wireless transmission/reception device may include a control unit. The controller may include a processor 610 and a memory 620.

The processor 610 may perform an operation according to instructions stored in memory. However, it is not limited thereto, and the control unit may include only a processor without including a memory. The processor 610 may be set to output a preset signal to an output line for a preset time. The wireless transmission device 100 and the wireless reception device 500 may perform preset operations according to signals. Operations of the wireless transmission device 100 and the wireless reception device 500 will be described in more detail below.

Referring back to FIG. 1, the wireless transmission device 100 adjusts the first distance L1 between the first optical cable connection terminal 130 and the first meniscus lens 110 to obtain LD or first optical cable connection. A pulsed laser light signal diverging from the terminal 130 may not deviate from the diameter of the first meniscus lens 110 . Also, as described above, when the reflector guide 210 is adjusted, the pulsed laser light signal emitted from the first optical cable connection terminal 130 may not exceed the diameter of the first meniscus lens 110. The distance L1 between the first optical cable connection terminal 130 and the first meniscus lens 110 may be determined based on the radius of curvature and refractive index of the first meniscus lens 110 . In addition, when the focal point is located at the end 161 of the first optical cable connection terminal 130, the first distance L1 may converge to the focal length of the first meniscus lens 110.

The wireless transmission device 100 may include a first driving unit for moving the first meniscus lens 110 in the axial direction 170 . The wireless transmission device 100 may include a third driving unit for moving the first convex lens 120 in the axial direction 170 . The wireless transmission device 100 may control the first meniscus lens 110 to move in the axial direction 170 . The wireless transmission device 100 may include a sensor light intensity sensor. The wireless transmission device 100 may move the first meniscus lens 110 farthest from the first optical cable connection terminal 130 . In addition, the wireless transmission device 100 may move the first convex lens 120 to the farthest side from the first optical cable connection terminal 130. In addition, the wireless transmission device 100 may move the reflector guide 210 to the closest side from the first meniscus lens 110 . The wireless transmission device 100 may receive predetermined light using the first optical cable connection terminal 130 . The wireless transmission device 100 may acquire the amount of light output from the wireless transmission device 100 using a sensor while slowly moving the first meniscus lens 110 toward the first optical cable connection terminal 130 . The wireless transmission device 100 slowly moves the first convex lens 120 toward the first optical cable connection terminal 130 while slowly moving the first meniscus lens 110 toward the first optical cable connection terminal 130. A distance between the 1 meniscus lens 110 and the first convex lens 120 may be kept constant. The wireless transmission device 100 may stop the movement of the first meniscus lens 110 when the amount of light output from the wireless transmission device 100 starts to decrease. The wireless transmission apparatus 100 may place the first meniscus lens 110 at a position of the first meniscus lens 110 when the amount of light output from the wireless transmission apparatus 100 is maximum. The first distance L1 may be determined through this process. The wireless transmission device 100 may finely adjust the position of the first meniscus lens 110 based on a user's input.

The wireless transmission device 100 may include a second driving unit for moving the reflector guide 210 in the axial direction 170 . The wireless transmission device 100 may control the reflector guide 210 to move in the axial direction 170 . The wireless transmission device 100 may include a sensor light intensity sensor. The wireless transmission device 100 may move the reflector guide 210 to the closest side from the first meniscus lens 110 . The wireless transmission device 100 may receive predetermined light using the first optical cable connection terminal 130 . The wireless transmission device 100 may acquire the amount of light output from the wireless transmission device 100 using a sensor while slowly moving the reflector guide 210 away from the first meniscus lens 110 . The wireless transmission device 100 may stop the movement of the reflector guide 210 when the amount of light output from the wireless transmission device 100 starts to decrease. The wireless transmission device 100 may place the reflector guide 210 at a position of the reflector guide 210 when the amount of light output from the wireless transmission device 100 is maximum. The wireless transmission device 100 may finely adjust the position of the reflector guide 210 based on a user's input.

The distance L1 between the first optical cable connection terminal 130 and the first meniscus lens 110 may be 25 mm or more and 45 mm or less. For example, the distance L1 between the first optical cable connection terminal 130 and the first meniscus lens 110 may be 35 mm. The distance L1 between the first optical cable connection terminal 130 and the first meniscus lens 110 may be set to 35 mm. The wireless transmission device 100 may automatically or manually adjust the first distance L1 or the position of the reflector guide 210 through the above process.

When the position of the reflector guide 210 and the position of the first meniscus lens 110 are determined through the above process, the wireless transmission device 100 can adjust the position of the first convex lens 120. The second distance L2 between the first meniscus lens 110 and the first convex lens 120 may expand or reduce the diameter of the parallel light. The wireless transmission device 100 can optimally expand the diameter of the collimated light by adjusting the second distance L2.

The diameter of the first meniscus lens 110 may be smaller than or equal to the diameter of the first convex lens 120 . For example, the diameter of the first meniscus lens 110 may be 21 mm. Also, the diameter of the first convex lens 120 may be 25 mm. However, it is not limited thereto.

The wireless transmission device 100 may include a third driving unit for moving the first convex lens 120 in the axial direction 170 . The wireless transmission device 100 may control the first convex lens 120 to move in the axial direction 170 . The wireless transmission device 100 may include a sensor light intensity sensor. When determining the position of the first meniscus lens 110, the wireless transmission apparatus 100 may determine the initial position of the first convex lens 120. The wireless transmission device 100 may receive predetermined light using the first optical cable connection terminal 130 . The wireless transmission device 100 may obtain the amount of light output from the wireless transmission device 100 using a sensor while slowly moving the first convex lens 120 toward the first meniscus lens 110 . The wireless transmission device 100 may stop the movement of the first convex lens 120 when the amount of light output from the wireless transmission device 100 starts to decrease. The wireless transmission device 100 may place the first convex lens 120 at a position of the first convex lens 120 when the amount of light output from the wireless transmission device 100 is maximum. The wireless transmission device 100 may finely adjust the position of the first convex lens 120 based on a user's input. The second distance L2 may be determined based on the position of the first convex lens 120 and the position of the first meniscus lens 110 . The second distance may be greater than or equal to 55 mm and less than or equal to 75 mm. For example, the second distance may be 65 mm. However, it is not limited thereto.

In the above, the wireless transmission device 100 has been described, but a similar description may be possible for the wireless reception device 500. The wireless receiving device 500 adjusts the third distance L1 between the second optical cable connection terminal 530 and the second meniscus lens 510 so that the light passing through the second meniscus lens 510 is controlled. 2 The optical cable connection terminal 530 may be focused. More specifically, the wireless receiving device 500 controls the third distance L1 between the second optical cable connection terminal 530 and the second meniscus lens 510 to pass through the second meniscus lens 510. The light may be focused on an end of the core of the receiving optical cable 560 connected to the second optical cable connection terminal 530. Through this, the received light amount of the wireless receiving device 500 can be maximized. The third distance L1 may be the same as the first distance L1. A process of controlling the third distance L1 may be the same as that of controlling the first distance L1.

The wireless receiving device 500 may set the third distance L1 in the same way as the wireless transmitting device 100. Also, the third distance L1 determined by the wireless receiving device 500 may be determined by the radius of curvature and refractive index of the second meniscus lens 510 . The wireless receiving device 500 may place the second meniscus lens 510 away from the second optical cable connection terminal 530 by the focal distance of the second meniscus lens 510 . For example, the third distance L1 may be equal to the focal length of the second meniscus lens 510 . For example, the third distance L1 may be greater than or equal to 25 mm and less than or equal to 45 mm. The third distance L1 may be 35 mm. However, it is not limited thereto.

A distance between the second meniscus lens 510 and the second convex lens 520 may be a fourth distance L2. The fourth distance L2 may be the same as the second distance L2. The wireless receiving device 500 may include a second meniscus lens 510 having a small diameter in order to reduce the diameter of parallel light passing through the second convex lens 520 having a large diameter. The wireless receiving device 500 may adjust the fourth distance L2 to reduce the diameter of the parallel light passing through the second convex lens 520 and focus it to the second meniscus lens 510 .

The fourth distance L2 may be greater than or equal to 55 mm and less than or equal to 75 mm. The fourth distance L2 may be 65 mm. However, it is not limited thereto. The wireless receiving device 500 may control the fourth distance L2 so that light rays passing through the second convex lens 520 converge on the diameter of the second meniscus lens 510 . A process of controlling the fourth distance L2 may be the same as that of controlling the second distance L2.

So far, we have looked at various embodiments. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from an illustrative rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope will be construed as being included in the present invention.

On the other hand, the above-described embodiments of the present invention can be written as a program that can be executed on a computer, and can be implemented in a general-purpose digital computer that operates the program using a computer-readable recording medium. The computer-readable recording medium includes storage media such as magnetic storage media (eg, ROM, floppy disk, hard disk, etc.) and optical reading media (eg, CD-ROM, DVD, etc.).

Claims (8)

A wireless transmission and reception device including a wireless transmission device and a wireless reception device for transmitting and receiving large amounts of data using parallel optical signals,
The wireless transmission device,
a first optical cable connection terminal for receiving the pulsed laser optical signal from a conversion unit that converts the mass data into a pulsed laser optical signal;
a first meniscus lens spaced apart from the optical cable connection terminal by a first distance (L1) and collecting the pulsed laser light signal scattered from the optical cable connection terminal; and
and a first convex lens positioned apart from the first meniscus lens by a second distance (L2) and configured to convert the pulsed laser light signal into a parallel light signal.
According to claim 1,
The first optical cable connection terminal,
It is connected to the conversion unit by a transmission optical cable,
A reflector guide surrounds an outer circumferential surface of an end of the transmission optical cable and limits scattering of the pulsed laser light signal,
The reflector guide extends from the end of the core of the transmission optical cable in the traveling direction of the pulsed laser light signal.
According to claim 2,
The length of the reflector guide extending from the end of the core of the transmission optical cable in the traveling direction of the pulsed laser optical signal is greater than or equal to (2 * L1 * r) / d1,
Wherein L1 is the first distance, r is a radius of the transmission optical cable, and d1 is a diameter of the first meniscus lens.
According to claim 3,
A wireless transmission/reception device using at least one wavelength of the pulsed laser light signal in the near-infrared and mid-infrared wavelength bands.
According to claim 4,
An entrance surface of the first meniscus lens faces the first optical cable connection terminal, and an exit surface of the first meniscus lens faces the first convex lens.
According to claim 1,
The wireless receiver,
a second convex lens for irradiating the parallel optical signal for the large amount of data received from the wireless transmission device with a second meniscus lens;
A second meniscus lens positioned apart from the second convex lens by a second distance (L2) and configured to irradiate the optical signal irradiated from the second convex lens to the core of the receiving optical cable connected to the second optical cable connection terminal. ; and
and a second optical cable connection terminal for transmitting the pulsed optical signal received from the second meniscus lens to an inverse conversion unit using the receiving optical cable. According to claim 6,
The second optical cable connection terminal,
It is connected to the inverse conversion unit by the receiving optical cable,
A reflector guide surrounds an outer circumferential surface of an end of the receiving optical cable and collects the pulsed optical signal received from the second meniscus lens into the receiving optical cable,
The reflector guide extends from the end of the core of the receiving optical cable in the direction of the second meniscus lens.
According to claim 7,
The length of the reflector guide extending from the end of the core of the receiving optical cable in the direction of the second meniscus lens is less than or equal to (2 * L1 * r) / d1,
Wherein L1 is the distance from the second optical cable connection terminal to the second meniscus lens, r is the radius of the receiving optical cable, and d1 is the diameter of the second meniscus lens.

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