KR102242355B1 - Internet of Lights- Repeater-based High Speed Transmission Apparatus and Method - Google Patents

Abstract

Embodiments of the present invention provide a high speed transmitting device based on IoL and repeater and a method thereof. The device comprises: a signal conversion unit that converts a digital signal into an optical signal of an optical wavelength band and repeatedly transmits the optical signal; a signal synchronization unit for synchronizing the digital signal and the converted optical signal to generate an optical synchronization signal; and a signal transceiving unit for performing optical communication by outputting light to transmit and receive data based on the optical synchronization signal.

Description

IoL and repeater-based high speed transmission apparatus and method {Internet of Lights- Repeater-based High Speed Transmission Apparatus and Method}

The present invention relates to a high-speed transmission apparatus and method, and more particularly, to an IoL and repeater-based high-speed transmission apparatus and method using an ultra-wide optical wavelength band.

The content described in this section merely provides background information on the present embodiment and does not constitute the prior art.

Recently, as 5G technology, sensor networks, and distributed data sharing services have become popular, the need for a service that transmits and receives network information at high speed has emerged. In particular, technology related to Internet of Lights (IoL) that transmits data using a broadband in the visible light band, which can use 50 times more bandwidth than the bandwidth of 4G and 5G, is growing.

Therefore, it is necessary to develop a communication technology capable of transmitting data at high speed using the optical wavelength of visible light. There is a need for a description of how to install.

Existing IoL (Internet of Lights) related invention proposes a method of processing data transmission entirely in the optical wavelength band, which is difficult to apply to an existing installed system or increases the cost.

The present invention has been devised to solve the above problems, and embodiments of the present invention propose a technology capable of high-speed data transmission based on an optical communication network. The present invention can be applied to a communication system that performs digital transmission, and a main object of the invention is to transmit high-capacity data at high speed using a synchronization device for performing optical transmission in an existing bit stream.

In addition, the present invention can provide an improvement in transmission speed by adding the present invention to a pre-installed digital signal communication-based system.

Other objects not specified of the present invention may be additionally considered within a range that can be easily deduced from the following detailed description and effects thereof.

In order to solve the above problems, the IoL and repeater-based high-speed transmission apparatus according to an embodiment of the present invention converts a digital signal into an optical signal of an optical wavelength band, and a signal conversion unit that repeatedly transmits the optical signal, And a signal synchronization unit for synchronizing the digital signal and the converted optical signal to generate an optical synchronization signal, and a signal transmission/reception unit for performing optical communication by outputting a light source for transmitting and receiving data based on the optical synchronization signal.

Here, the signal conversion unit repeatedly transmits the data transmission method of the digital signal that is continuously transmitted using the orthogonality of the optical signal.

Here, the signal conversion unit is a digital signal input unit configured to collect the digital signal formed of a radio frequency that performs bit-stream-based transmission representing a flow of data continuously transmitted in a serial form, and the digital signal A repeater unit that repeatedly transmits the optical signal by maintaining the orthogonality of data and improves the transmission speed, a scramble unit that distorts the arrangement of the digital signal whose transmission speed is improved to improve security, and an optical signal whose arrangement is distorted It includes an optical signal output unit for outputting.

Here, the signal synchronization unit performs transmission synchronization between the data of the optical signal, and prevents data loss that occurs when the optical signal is converted to the optical signal through the signal conversion unit.

Here, the signal synchronization unit maintains orthogonality of the data through the repeater unit, and a repetitive transmission unit for repeatedly transmitting the same data as the optical signal, and the optical signal in a preset sequence to prevent eavesdropping of the optical signal due to the orthogonality. An encryption unit for encrypting the optical signal by rearranging the data of the signal, and extracting the data bits by restoring sequence operation and orthogonality to the data formed of the encrypted optical signal, and the optical recovery signal formed based on the data bits. And a post-processing unit that generates an optical synchronization signal.

Here, the encryption unit arranges the sequentially transmitted optical signals in a spatial or temporal order and encrypts them in the preset sequence, and the post-processing unit converts (i) the digital signal and (ii) the digital signal to the optical signal. When the encrypted optical signal is restored upon conversion to and the optical recovery signal formed based on the data bit is synchronized, the optical synchronization signal is generated, and the post-processing unit (i) the digital signal and (ii) the When converting the digital signal to the optical signal, when the encrypted optical signal is restored and the optical recovery signal formed based on the data bit is not synchronized, the sequence operation is performed until the optical signal is synchronized with the digital signal. And orthogonality is restored.

Here, the encryption unit performs different encryption of the data of the optical signal according to the priority set according to the priority, the encryption of the optical signal fixes a part of the data of the optical signal arranged in the spatial or temporal order, Relocate unfixed data.

Here, the signal transmission/reception unit transmits and receives the data using a band of visible light, and transmits the optical synchronization signal by adjusting an amplitude of a wavelength of the visible light.

Here, it includes an optical transmission unit for transmitting the optical synchronization signal synchronized by the signal synchronization unit as a transmission signal, and an optical reception unit for converting data included in the light source into an electric signal and receiving it as a reception signal.

Here, the high-speed transmission device receives a test signal from an external processor, generates and stores a copy of the test signal, checks the communication state according to the check list of the test signal, and records the check completion information in the test signal. And transmitting the test signal recording the inspection completion information to the external processor, and the external processor determining a communication state of the high-speed transmission device based on the test signal recording the inspection completion information.

In an IoL and repeater-based high-speed transmission method by an IoL and repeater-based high-speed transmission device according to another embodiment of the present invention, converting a digital signal into an optical signal of an optical wavelength band, the digital signal and the conversion And generating an optical synchronization signal by synchronizing the obtained optical signal, and performing optical communication by outputting a light source for transmitting and receiving data based on the optical synchronization signal.

Here, the step of converting the optical signal may include collecting the digital signal formed with a radio frequency that performs bit-stream-based transmission indicating a flow of data that is continuously transmitted in a serial form, and the digital signal Maintaining the orthogonality of the data of the optical signal and repeatedly transmitting the optical signal and improving the transmission speed, distorting the arrangement of the digital signal with the improved transmission speed for improved security, and the optical signal in which the arrangement is distorted And outputting.

Here, the step of generating the optical synchronization signal is a step of repeatedly transmitting the same data as the optical signal while maintaining orthogonality of the data through the repeater unit, a sequence preset to prevent eavesdropping of the optical signal due to the orthogonality Encrypting the optical signal by rearranging the data of the optical signal, extracting data bits by restoring sequence operation and orthogonality to the data formed of the encrypted optical signal, and recovering the optical recovery signal formed based on the data bits. And generating the optical synchronization signal through.

An optical communication-based transmission/reception system according to another embodiment of the present invention converts a digital signal into an optical signal of an optical wavelength band, and a signal converter that repeatedly transmits the optical signal, the digital signal and the converted optical signal. Optical communication-based transmission including a signal synchronization unit for generating an optical synchronization signal representing the synchronized optical signal by synchronizing and an LED for performing optical communication by outputting a light source for data transmission based on the optical synchronization signal An optical communication-based reception device comprising a device and a photo sensor for receiving a light source output from the optical communication-based transmission device, and a reception signal converter for converting the optical synchronization signal of the optical wavelength band included in the light source into a digital signal Includes.

Here, the signal conversion unit repeatedly transmits the data transmission method of the continuously transmitted digital signal by using orthogonality of the optical signal and converts the data into the optical signal, and the signal synchronization unit Inter-transmission synchronization is performed, and data loss occurring during conversion to the optical signal through the signal converter is prevented.

As described above, according to the embodiments of the present invention, the present invention has an effect of greatly improving a transmission speed compared to an existing communication system by performing transmission based on a broadband of visible light.

According to the embodiments of the present invention, the present invention has an effect that can be additionally applied to an existing digital signal-based communication system.

Even if it is an effect not explicitly mentioned herein, the effect described in the following specification expected by the technical features of the present invention and the provisional effect thereof are treated as described in the specification of the present invention.

1 is a block diagram illustrating an IoL and repeater-based high-speed transmission apparatus according to an embodiment of the present invention.
2 is a block diagram illustrating in detail an IoL and repeater-based high-speed transmission apparatus according to an embodiment of the present invention.
3 is an exemplary diagram illustrating an IoL and repeater-based high-speed transmission apparatus according to an embodiment of the present invention.
4 is an exemplary diagram illustrating a signal conversion unit of a high-speed transmission device based on IoL and repeater according to an embodiment of the present invention.
5 is a flowchart illustrating a high-speed transmission method based on IoL and repeater according to an embodiment of the present invention.

Hereinafter, in describing the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured as matters apparent to those skilled in the art with respect to known functions related to the present invention, detailed descriptions thereof will be omitted, and some embodiments of the present invention will be described. It will be described in detail through exemplary drawings. However, the present invention may be implemented in various different forms, and is not limited to the described embodiments. In addition, in order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals in the drawings indicate the same members.

The term and/or includes a combination of a plurality of related stated terms or any of a plurality of related stated terms.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. It should be.

The suffixes "module" and "unit" for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of preparation of the specification, and do not have meanings or roles that are distinguished from each other by themselves.

Terms such as first and second may be used to describe various elements, but the elements should not be limited by terms. The above terms are used only for the purpose of distinguishing one component from another component.

The present invention relates to an IoL and repeater-based high-speed transmission apparatus and method.

1 is a block diagram illustrating an IoL and repeater-based high-speed transmission apparatus according to an embodiment of the present invention, and FIG. 2 is a block diagram illustrating in detail an IoL and repeater-based high-speed transmission apparatus according to an embodiment of the present invention. It is a degree. As shown in FIG. 1, the high-speed transmission apparatus 10 based on IoL and repeater includes a signal conversion unit 100, a signal transmission/reception unit 200, and a signal synchronization unit 300. The IoL and repeater-based high-speed transmission apparatus 10 may omit some components or additionally include other components among the various components exemplarily illustrated in FIG. 1.

The existing IoL-related invention processes data transmission entirely in the optical wavelength band. This is difficult to apply to an existing installed system, or there is a problem in that the cost is increased.

The IoL and repeater-based high-speed transmission device 10 is an Internet of Lights (IoL)-based high-speed transmission device, and is a device that overcomes the limitation of the bandwidth of the existing digital-based communication system by using an ultra-wideband optical wavelength band.

The high-speed transmission device 10 based on IoL and repeater may transmit data using a broadband of a visible light band that can use a bandwidth of 50 times or more than that of 4G and 5G. The frequency range of visible light is 380 ~ 750 THz, and the frequency range is much wider than the wireless communication frequency of 3KHz ~ 300Ghz.

The high-speed transmission device 10 based on IoL and repeater can be applied to a communication system that performs digital transmission, and uses a synchronization device for performing optical transmission in an existing bit-stream. Data can be transmitted at high speed. In addition, the high-speed transmission device 10 may provide an increase in transmission speed by adding to a digital signal-based communication system.

The high-speed transmission device 10 based on IoL and repeater can greatly improve a transmission speed compared to an existing communication system by performing transmission based on a broadband of visible light.

The high-speed transmission device 10 based on IoL and repeater performs communication through optical communication based on Internet of Lights (IoL). When performing optical communication, the high-speed transmission device 10 may transmit data using a GHz-class bandwidth using a visible light band, rather than generating a radio frequency (RF) signal for communication. . The band used for optical communication can be confirmed by the human eye with visible light, but information can be transmitted with a degree of change that is indistinguishable by the human eye by adjusting the amplitude of the wavelength.

The IoL and repeater-based high-speed transmission device 10 is a high-speed transmission device based on the Internet of Lights (IoL), and the Internet of Lights (IoL) is an axis of the Internet of Things, and is not a wireless local area network, but LED (light-emitting diode) lighting. By connecting the sensor to the Internet, you can wirelessly transmit data to multiple devices.

The high-speed transmission device 10 based on IoL and repeater exchanges communication using the wavelength of visible light emitted from the LED, and enables communication at a very high speed. The high-speed transmission device 10 based on IoL and repeater has high security and can be used in places where radio wave interference is present. In addition, since the high-speed transmission device 10 based on IoL and repeater does not overlap with the frequency of the existing communication, it is possible to prevent a situation in which communication is difficult due to mixing of radio waves.

The high-speed transmission device 10 based on IoL and repeater can communicate with a number of devices such as displays, automobiles, lighting, optical communication, mobile phones, and computers, and various communication such as file sharing, additional information provision, and information communication. Can give and receive.

The signal converter 100 converts a digital signal into an optical signal of an optical wavelength band, and may repeatedly transmit the optical signal.

The signal converter 100 may repeatedly transmit a data transmission method of the digital signal that is continuously transmitted by using orthogonality of the optical signal.

According to an embodiment of the present invention, the signal converter 100 may perform high-speed transmission through repetitive transmission using a bit-stream-based data transmission method of an existing infrastructure and using orthogonality of an optical signal. The signal conversion unit 100 refers to an integrated circuit for converting an existing digital signal into an optical signal, and includes a conversion module.

Referring to FIG. 2, the signal conversion unit 100 includes a digital signal input unit 110, a repeater unit 120, a scramble unit 130, and an optical signal output unit 140. The signal conversion unit 100 may omit some of the various components exemplarily illustrated in FIG. 2 or may additionally include other components.

The digital signal input unit 110 may collect a digital signal formed by a radio frequency that performs bit-stream-based transmission indicating a flow of data continuously transmitted in a serial form.

Bit-stream refers to a sequence of bits that are continuously continuous, such as a flow of data continuously transmitted through serial communication, one bit at a time.

According to an embodiment of the present invention, the digital signal input unit 110 is a circuit that collects signals from an existing radio frequency (RF) circuit that performs bit-stream-based transmission, and processes existing digital signals. It can be done, but is not necessarily limited thereto.

The repeater 120 maintains the orthogonality of the data of the digital signal, transmits it repeatedly as an optical signal, and improves the transmission speed.

According to an embodiment of the present invention, the repeater unit 120 is a circuit that improves data reliability and transmission speed during high-speed transmission through repetition while maintaining orthogonality of data, but is not limited thereto.

According to an embodiment of the present invention, the repeater unit 120 may remove noise and remove a signal band that is not necessary in communication performed through an optical signal.

The scrambler 130 may distort the arrangement of optical signals during conversion to improve security.

Scramble can encode or encrypt an optical signal so that it is not understood by general users. For example, the scrambler 130 may randomize a pattern of data or prevent the same bit string 1 or 0 from being continuously input. This can be used to make decryption difficult to improve security.

According to an exemplary embodiment of the present invention, the scrambler 130 may be a circuit that repeatedly transmits data while maintaining orthogonality and converts an arrangement between conversions of an optical signal to improve a transmission speed into a zigzag form.

The optical signal output unit 140 may output an optical signal whose arrangement is distorted by the scrambler 130.

According to an embodiment of the present invention, the optical signal output unit 140 may be connected to an LED that outputs an optical signal converted to a parallel circuit and a photo sensor that receives an input.

The signal synchronization unit 300 may generate an optical synchronization signal by synchronizing a digital signal and an optical signal distorted by the signal conversion unit 100.

The signal synchronization unit 300 performs transmission synchronization between data of the digital signal and the converted optical signal, and may prevent data loss that occurs when the signal is converted to an optical signal through the signal conversion unit 100.

According to an embodiment of the present invention, the signal synchronization unit 300 may prevent data loss between digital-to-optical conversion by performing transmission synchronization between optical wavelength data. The signal synchronization unit 300 may be implemented as a circuit that prevents data damage by performing conversion and synchronization between a digital signal and an optical signal.

According to an embodiment of the present invention, the signal synchronization unit 300 may be used to match clock frequencies, bits, frames, words, etc. when converting a digital signal to an optical signal, and may occur when converting a digital signal to an optical signal. This can be done to prevent damage and loss of existing data.

Referring to FIG. 2, the signal synchronization unit 300 includes a repetitive transmission unit 310, an encryption unit 320, and a post-processing unit 230. The signal synchronization unit 300 may omit some of the various components exemplarily illustrated in FIG. 2 or may additionally include other components.

The repetitive transmission unit 310 may maintain orthogonality of the data through the repeater unit 120 and may repeatedly transmit the same data as the optical signal.

According to an embodiment of the present invention, the repetitive transmission unit 310 may repeatedly transmit the same data while maintaining the orthogonality of the data.

The encryption unit 320 may encrypt the optical signal by rearranging the data of the optical signal in a preset sequence to prevent eavesdropping of the optical signal due to orthogonality.

According to an embodiment of the present invention, the encryption unit 320 may encrypt the optical signal by scattering data of the optical signal in a preset sequence to prevent eavesdropping of the optical signal due to orthogonality.

According to an embodiment of the present invention, the encryption unit 320 may perform different encryption of the data of the optical signal according to the priority set according to the priority. The encryption of the optical signal may fix some of the data of the optical signal arranged in a spatial or temporal order, and rearrange the unfixed data.

According to an embodiment of the present invention, the encryption unit 320 may set priorities such as data components, data volumes, and external environments in which communication is performed. The importance of transmitted data can be calculated by calculating a variable set in advance according to the external environment being performed. The encryption unit 320 fixes some of the data of the optical signals arranged in spatial or temporal order according to the importance of the data, rearranges the unfixed data, or data of all optical signals arranged in the spatial or temporal order. Can be rearranged. In addition, the encryption unit 320 not only encrypts data rearranged in a preset sequence according to the importance of the data, but also deletes some of the data of the optical signal arranged in spatial or temporal order, and restores the data in the post-processing unit 330 , After adding noise, the post-processing unit 330 may encrypt the optical signal to prevent eavesdropping of the optical signal, such as a method of removing and restoring the added noise.

The post-processing unit 330 may extract data bits by restoring sequence operation and orthogonality to data formed of an encrypted optical signal, and generate the optical synchronization signal through an optical restoration signal formed based on the data bits.

The data bit is a bit excluding control signals such as a parity bit for error detection among each transmitted bit, and a start-stop bit transmitted before and after data to indicate the start and end of data. According to an embodiment of the present invention, the data bit may be a bit from which an encrypted optical signal is restored, but is not limited thereto.

The post-processing unit 330 may generate an optical synchronization signal when (i) a digital signal and (ii) an encrypted optical signal is restored when converting the digital signal to an optical signal, and the optical recovery signal formed based on the data bit is synchronized. I can.

The post-processing unit 330 restores the encrypted optical signal when converting (i) a digital signal and (ii) a digital signal into an optical signal, and when the optical recovery signal formed based on the data bit is not synchronized, the optical signal is Sequence operations and orthogonality can be restored until they are synchronized with the digital signal.

The signal transceiving unit 200 may perform optical communication by outputting a light source for transmitting and receiving data based on an optical synchronization signal.

The signal transmission/reception unit 200 transmits and receives data using a bandwidth of a GHz class using a band of visible light, and may transmit data by adjusting an amplitude of a wavelength of the visible light.

According to an embodiment of the present invention, the signal transmission/reception unit 200 may transmit/receive an optical synchronization signal formed by synchronizing data converted into an optical signal by the signal conversion unit 100 by the signal synchronization unit 300 in an optical wavelength. have. The signal transmission/reception unit 200 is a device capable of transmitting and receiving an optical synchronization signal, and refers to a whole device capable of performing both transmission and reception.

Referring to FIG. 2, the signal transmission/reception unit 200 includes an optical transmission unit 210 and an optical reception unit 220. The signal transmission/reception unit 200 may omit some of the various components exemplarily illustrated in FIG. 2 or may additionally include other components.

According to an embodiment of the present invention, the signal transceiver 200 may be formed of a light transmission unit 210 using an LED lamp as a transmission circuit and a light reception unit 220 using a photo sensor as a reception circuit, and must be It is not limited.

The optical transmission unit 210 may transmit an optical synchronization signal obtained by synchronizing the optical signal output from the optical signal output unit by the signal synchronization unit 300 as a transmission signal. The optical transmission unit 210 transmits an optical signal using visible light, which is a wavelength of light, at a high communication speed, and transmits data to a radiating light source.

The light transmitting unit 210 may adjust the intensity of the light source to transmit data according to a small change in amplitude, and may exchange desired data in a place where the light source exists. In addition, the optical transmission unit 210 can transmit and receive data even in a dark state by lowering the brightness to a level that cannot be seen by humans.

According to an embodiment of the present invention, the optical transmission unit 210 is an LED, there is no interference between frequencies using the LED, and there is no limitation in use because it can be used where the LED exists, and it is quickly flickered by data. Data communication can be enabled.

Since the optical transmission unit 210 transmits an optical synchronization signal using an LED, communication can be performed at low cost, and energy efficiency can be improved. In addition, the optical transmission unit 210 may have less influence on the human body due to electromagnetic waves by using an LED.

According to an embodiment of the present invention, the optical transmission unit 210 is illustrated as transmitting an optical synchronization signal through an LED, but is not limited thereto.

The light receiving unit 220 may convert data included in the light source into an electric signal and receive it as a received signal.

According to an embodiment of the present invention, the light receiving unit 220 is a photosensor, but is not limited thereto.

According to an embodiment of the present invention, a photosensor may convert an optical signal emitted from a radiator into an electric signal in response to a change in an amount of a received light source. The photosensor can be operated with visible red light, anti-reflective infrared light, or powerful laser light if necessary.

IoL and repeater-based high-speed transmission device 10, when an obstacle is located between the optical transmission unit 210 that transmits the optical synchronization signal and the receiver of another high-speed transmission device, the object is reflected by the obstacle or surrounding objects. Communication may be possible by a light source.

The high-speed transmission device 10 based on IoL and repeater receives a test signal from an external processor, creates and stores a copy of the test signal, checks the communication status according to the check list of the test signal, and stores the check completion information in the test signal. A test signal recorded and recorded with the inspection completion information is transmitted to the external processor, and the external processor may determine a communication state of the high-speed transmission device based on the test signal recorded with the inspection completion information.

The external processor transmits the test signal to the high-speed transmission device 10 based on the IoL and repeater. The test signal includes an identification number of a test device, an identification number of a peripheral device connected to the test device, a check list for checking the operation of internal components included in the test device, a transmission time, and a reception time.

According to an embodiment of the present invention, the test signal is the identification number of the high-speed transmission device 10 based on IoL and repeater, the identification number of external devices connected to the high-speed transmission device 10 based on IoL and repeater, based on IoL and repeater. Including a check list for checking the operation of the internal components included in the high-speed transmission device 10, and inspection completion information.

The IoL and repeater-based high-speed transmission device 10 checks the operation of the internal components included in the IoL and repeater-based high-speed transmission device 10 based on the check list, Record the inspection completion information accordingly.

The external processor may analyze the received test signal to determine the operation state of the high-speed transmission device 10 based on the IoL and repeater. The external processor analyzes the test signals of the received original and copies, and determines the communication status between external devices connected to the high-speed transmission device 10 based on IoL and repeater, and the high-speed transmission device 10 based on IoL and repeater. have.

3 is an exemplary diagram illustrating an IoL and repeater-based high-speed transmission apparatus according to an embodiment of the present invention, and FIG. 4 is an illustration of a signal conversion unit of an IoL and repeater-based high-speed transmission apparatus according to an embodiment of the present invention. It is an example diagram. Detailed descriptions of operations performed by the high-speed transmission device and overlapping descriptions will be omitted.

Components of the IoL and repeater-based high-speed transmission device 10 may be located as shown in FIG. 3, and positions of the components of the IoL and repeater-based high-speed transmission device 10 are not necessarily limited thereto.

Referring to FIG. 3, in the high-speed transmission device 10 based on IoL and repeater, the signal conversion unit 100 and the signal synchronization unit 300 are located in an upward and downward combination with each other, and from one surface of the signal conversion unit 100 It may be combined with the signal transceiving unit 200. The positions of the components of the IoL and repeater-based high-speed transmission device 10 are not necessarily limited thereto, and may be reassembled and located if necessary.

3 may refer to a transmission/reception system based on optical communication. Referring to FIG. 3, the optical communication-based transmission/reception system generates an optical synchronization signal representing a synchronized optical signal by synchronizing a digital signal into an optical signal of an optical wavelength band and a signal conversion unit that converts a digital signal into an optical signal of an optical wavelength band. An optical communication-based transmission device including an LED that performs optical communication by outputting a light source for data transmission based on a signal synchronization unit and an optical synchronization signal, and a photo receiving the light source output from the optical communication-based transmission device. It includes an optical communication-based reception device including a reception signal converter for converting an optical synchronization signal of an optical wavelength band included in the sensor and the light source into a digital signal.

Referring to FIG. 3, an optical communication-based transmission device and an optical communication-based reception device of an optical communication-based transmission/reception system form the same shape, but are not limited thereto and may have different shapes.

According to an embodiment of the present invention, the signal conversion unit 100 of the high-speed transmission device 10 based on IoL and repeater includes an optical transmission unit 210 at the top, and a plurality of optical reception units 220 at the side. do. Here, the light transmitting unit 210 may be formed of an LED, and the light receiving unit 220 may be formed of a photo sensor.

Since the light transmission unit 210 is an LED, it outputs a light source including an optical synchronization signal by using the light source wavelength emitted from the LED, so it is located at the top of the high-speed transmission device 10 to output the light source over a wide range. can do.

The IoL and repeater-based high-speed transmission device 10 transmits a light source including an optical synchronization signal to an LED, so it is possible to communicate in an illuminance that cannot be seen with the naked eye, and is located in an environment where wireless communication is not possible, such as crosstalk of frequencies. Communication can be performed.

According to an embodiment of the present invention, the light receiving unit 220 is attached to and positioned on different sides of the light transmitting unit 210 and the signal converting unit 100. Although the optical receiver 220 is shown to be located on the left side of the signal conversion unit 100 and the optical transmission unit 210 is located on the right side of the signal conversion unit 100, the optical transmission unit 210 and the light receiving unit 220 The location is not necessarily limited thereto, and may be positioned at a location capable of transmitting and receiving digital signals and optical signals with the signal conversion unit 100 and the signal synchronization unit 300.

According to an embodiment of the present invention, the signal synchronization unit 300 is shown to be located below the signal conversion unit 100, but the position of the signal conversion unit 100 is not necessarily limited thereto, and the signal conversion unit It is connected to (100) and can be located in a position that can prevent data loss between conversions when converting a digital signal to an optical signal.

Referring to FIG. 4, digital signals input through a plurality of light receiving units 220 located on the side are digital signal input unit 110, repeater unit 120, scramble unit 130, and optical signal output unit 140. After passing through, the optical synchronization signal synchronized through the signal synchronization unit 300 may be output through the optical transmission unit 210.

According to an embodiment of the present invention, the digital signal input unit 110 is located in a place where a signal received from the optical receiving unit 220 can be input, and the optical signal output unit 140 transmits a signal through the optical transmission unit 210. It can be located where it can be transmitted. Specifically, the digital signal input unit 110 is located at the closest distance among the components of the optical receiving unit 220 and the signal conversion unit 100, and the optical signal output unit 140 is the optical transmission unit 210 and the signal conversion unit It is located at the nearest distance among the components of (100).

According to an embodiment of the present invention, the IoL and repeater-based high-speed transmission device 10 may further include a sensor (not shown) capable of checking the amount of light given per unit area. The above-described sensor may be an illuminance sensor, but is not limited thereto. The high-speed transmission device 10 based on IoL and repeater may transmit a communication danger signal when the amount of light measured through the sensor falls below a threshold value. The communication danger signal may be transmitted to a user who receives high-capacity data and a manager who manages the IoL and repeater-based high-speed transmission device 10.

According to an embodiment of the present invention, the IoL and repeater-based high-speed transmission device 10 may transmit a communication error signal to a communication user when the amount of light measured through a sensor is again measured below a threshold. In order to change the method, it is possible to propose a conversion to another communication method such as a wireless local area network located in the vicinity. In addition, the IoL and repeater-based high-speed transmission device 10 sends a check signal to the manager who manages the IoL and repeater-based high-speed transmission device 10 when the amount of light measured through the sensor is again measured below the threshold. Can be transmitted. Specifically, the check signal is a control signal for controlling the amount of light emitted by the LED, a check signal for checking whether the LED for IoL-based optical communication is faulty, and the high-speed transmission device 10 based on IoL and repeater. It may include a check signal for confirming the presence or absence of fixation, but is not limited thereto.

According to an embodiment of the present invention, the IoL and repeater-based high-speed transmission device 10 uses the IoL and repeater-based high-speed transmission device 10 when the amount of light measured through the sensor is measured again above the threshold. It is possible to retransmit to the communication user whether to change the communication method for performing communication through communication. In addition, the IoL and repeater-based high-speed transmission device 10, when the amount of light measured through the sensor is measured again above the threshold, sends a restoration signal to the manager who manages the IoL and repeater-based high-speed transmission device 10. Can be transmitted. Here, the recovery signal is a signal that means that there is no problem in IoL-based optical communication. In addition, the IoL and repeater-based high-speed transmission device 10 can receive input on the cause of the problem analyzed based on the contents checked through the above-described check signal, and through this, periodically check the cause of the problem so that it does not occur. I can. For example, if a problem occurs continuously in one of the components of the IoL and repeater-based high-speed transmission device 10, a problem in which communication error occurs through replacement or periodic inspection of the above-described components. Can be prevented.

5 is a flowchart illustrating an optical communication-based high-speed transmission method according to an embodiment of the present invention. The optical communication-based high-speed transmission method may be performed by an IoL and repeater-based high-speed transmission device, and detailed descriptions of operations performed by the IoL and repeater-based high-speed transmission devices and overlapping descriptions will be omitted.

In the optical communication-based high-speed transmission method, a digital signal is converted into an optical signal of an optical wavelength band, the optical signal is repeatedly transmitted (S510), and an optical synchronization signal is generated by synchronizing the digital signal and the converted optical signal. (S520) and performing optical communication by outputting a light source for transmitting and receiving data based on the optical synchronization signal (S520).

Converting a digital signal to an optical signal of an optical wavelength band, and repeatedly transmitting the optical signal (S510) is to perform a bit-stream-based transmission indicating the flow of data continuously transmitted in a serial form. Collecting a digital signal formed by radio frequency, repeating transmission as an optical signal by maintaining the orthogonality of the data of the digital signal and improving the transmission speed, distorting the arrangement of the optical signal at the time of conversion to improve security The step and arrangement includes outputting a distorted optical signal.

The step of generating an optical synchronization signal by synchronizing the digital signal and the converted optical signal (S520) is a step of repeatedly transmitting the same data as an optical signal while maintaining orthogonality of the data through a repeater unit. Encrypting the optical signal by rearranging the data of the optical signal in a preset sequence to prevent eavesdropping, and extracting the data bits by restoring the sequence operation and orthogonality to the data formed of the encrypted optical signal. And generating an optical synchronization signal through the recovery signal.

In FIG. 5, each process is intervened to be executed sequentially, but this is only illustrative, and those skilled in the art may change the order shown in FIG. 5 within the range not departing from the essential characteristics of the embodiment of the present invention. Or, by executing one or more processes in parallel, or adding other processes, various modifications and variations may be applied.

The operations according to the present embodiments may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. Computer-readable medium refers to any medium that has participated in providing instructions to a processor for execution. The computer-readable medium may include program instructions, data files, data structures, or a combination thereof. For example, there may be a magnetic medium, an optical recording medium, a memory, and the like. Computer programs may be distributed over networked computer systems to store and execute computer-readable codes in a distributed manner. Functional programs, codes, and code segments for implementing this embodiment may be easily inferred by programmers in the art to which this embodiment belongs.

The present embodiments are for explaining the technical idea of the present embodiment, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of this embodiment should be interpreted by the claims below, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present embodiment.

10: high-speed transmission device
100: signal conversion unit
200: signal transmission/reception unit
300: signal synchronization unit

Claims (15)

A signal converter converting a digital signal into an optical signal of an optical wavelength band and repeatedly transmitting the optical signal;
A signal synchronization unit synchronizing the digital signal and the converted optical signal to generate an optical synchronization signal; And
A signal transceiving unit for performing optical communication by outputting a light source for transmitting and receiving data based on the optical synchronization signal,
The signal conversion unit includes a repeater unit that maintains orthogonality of the transmitted data so that the digital signals do not overlap each other, repeatedly transmits the optical signal, and improves a transmission speed,
The signal synchronization unit may include a repeater transmitting unit for transmitting the same data as the optical signal by repeating the same data so as not to overlap each other by maintaining orthogonality of the data through the repeater unit; An encryption unit for encrypting the optical signal by rearranging the data of the optical signal in a preset sequence to prevent eavesdropping of the optical signal due to the orthogonality; And IoL including a post-processing unit for extracting data bits by restoring orthogonality to the data formed of the encrypted optical signal through a sequence operation, and generating the optical synchronization signal through an optical restoration signal formed based on the data bits. Repeater-based high-speed transmission device. The method of claim 1,
The signal conversion unit,
IoL and repeater-based high-speed transmission apparatus, characterized in that the data transmission method of the continuously transmitted digital signal is repeatedly transmitted so as not to overlap each other by using orthogonality of the optical signal. The method of claim 2,
The signal conversion unit,
A digital signal input unit configured to collect the digital signal formed of a radio frequency for performing bit-stream-based transmission indicating a flow of data continuously transmitted in a serial form;
A scrambler configured to distort the arrangement of the digital signal having the improved transmission speed to improve security; And
IoL and repeater-based high-speed transmission apparatus further comprising an optical signal output unit for outputting the distorted digital signal as the optical signal. The method of claim 3,
The signal synchronization unit,
A high-speed transmission device based on IoL and repeater, characterized in that it performs transmission synchronization between data of the optical signal and prevents data loss that occurs when the optical signal is converted to the optical signal through the signal converter. delete The method of claim 1,
The encryption unit arranges the sequentially transmitted optical signals in a spatial or temporal order and encrypts them in the preset sequence,
The post-processing unit (i) the digital signal and (ii) when converting the digital signal to the optical signal by restoring the encrypted optical signal to synchronize the optical recovery signal formed based on the data bit, the optical Generate a synchronization signal,
When the post-processing unit (i) restores the encrypted optical signal when converting the digital signal and (ii) the digital signal to the optical signal, and the optical recovery signal formed based on the data bit is not synchronized, the IoL and repeater-based high-speed transmission apparatus, characterized in that the orthogonality is restored through the sequence operation until the optical signal is synchronized with the digital signal. The method of claim 1,
The encryption unit performs different encryption of the data of the optical signal according to the priority set according to the priority,
In the encryption of the optical signal, a part of the data of the optical signal arranged in a spatial or temporal order is fixed, and the non-fixed data is rearranged. The method of claim 1,
The signal transmission/reception unit transmits and receives the data using a band of visible light, and transmits the optical synchronization signal by adjusting an amplitude of a wavelength of the visible light. The method of claim 1,
The signal transmission/reception unit,
An optical transmission unit for transmitting the optical synchronization signal synchronized by the signal synchronization unit as a transmission signal; And
IoL and repeater-based high-speed transmission device including an optical receiver that converts data included in a light source into an electrical signal and receives it as a received signal. The method of claim 1,
The high-speed transmission device based on the IoL and repeater receives a test signal from an external processor, creates and stores a copy of the test signal, checks the communication status according to the check list of the test signal, and checks the test signal. And transmits the test signal recording the inspection completion information to the external processor,
And the external processor determines a communication state of the high-speed transmission device based on the test signal recording the inspection completion information. In the IoL and repeater-based high-speed transmission method by an IoL and repeater-based high-speed transmission device,
Converting the digital signal into an optical signal of an optical wavelength band, and repeatedly transmitting the optical signal;
Generating an optical synchronization signal by synchronizing the digital signal and the converted optical signal by a signal synchronization unit; And
A signal transceiving unit comprising the step of performing optical communication by outputting a light source for transmitting and receiving data based on the optical synchronization signal,
Converting the optical signal to the optical signal and repeatedly transmitting the optical signal includes maintaining orthogonality of the transmitted data so as not to overlap with each other of the digital signal, and repeatedly transmitting the optical signal and improving the transmission speed,
Generating the optical synchronization signal may include repeating the same data as the optical signal so as not to overlap each other by maintaining orthogonality of the data through a repeater; Encrypting the optical signal by rearranging the data of the optical signal in a preset sequence to prevent eavesdropping of the optical signal due to the orthogonality; And extracting data bits by restoring orthogonality to data formed of the encrypted optical signal through a sequence operation, and generating the optical synchronization signal through an optical restoration signal formed based on the data bits. Based high-speed transmission method. The method of claim 11,
Converting into the optical signal, and repeatedly transmitting the optical signal,
Collecting the digital signal formed by a radio frequency for performing bit-stream-based transmission representing a flow of data continuously transmitted in a serial form;
Distorting the arrangement of the digital signal having the improved transmission speed to improve security; And
IoL and repeater-based high-speed transmission method further comprising the step of outputting the arrangement distorted optical signal. delete A signal conversion unit that converts a digital signal into an optical signal of an optical wavelength band and repeatedly transmits the optical signal, and generates an optical synchronization signal representing the synchronized optical signal by synchronizing the digital signal and the converted optical signal. IoL and repeater-based transmission device including a signal synchronization unit and an LED for performing optical communication by outputting a light source for data transmission based on the optical synchronization signal; And
IoL and repeater-based receiving device including a photo sensor for receiving the light source output from the IoL and repeater-based transmission device, and a receiving signal converter for converting the optical synchronization signal of the optical wavelength band included in the light source into a digital signal Including,
The signal conversion unit includes a repeater unit that maintains orthogonality of the transmitted data so that the digital signals do not overlap each other, repeatedly transmits the optical signal, and improves a transmission speed,
The signal synchronization unit may include a repeater transmitting unit for transmitting the same data as the optical signal by repeating the same data so as not to overlap each other by maintaining orthogonality of the data through the repeater unit; An encryption unit for encrypting the optical signal by rearranging the data of the optical signal in a preset sequence to prevent eavesdropping of the optical signal due to the orthogonality; And IoL including a post-processing unit for extracting data bits by restoring orthogonality to the data formed of the encrypted optical signal through a sequence operation, and generating the optical synchronization signal through an optical restoration signal formed based on the data bits. Repeater-based transmission and reception system. The method of claim 14,
The signal conversion unit repeatedly transmits the data transmission method of the continuously transmitted digital signal so as not to overlap each other using orthogonality of the optical signal, and converts the data into the optical signal,
The signal synchronization unit performs transmission synchronization between the digital signal and the data of the optical signal, and prevents data loss occurring when the signal is converted to the optical signal through the signal converter.

Images