KR102609128B1 - Long-distance transmission system for analog noise reduction - Google Patents

Abstract

The present invention relates to a long-distance transmission system for reducing analog noise, and more specifically, to a long-distance transmission system for reducing analog noise that increases the transmission and reception distance by connecting signals using optical channels instead of electrical connections, which have limitations in signal connection. will be.

Description

Long-distance transmission system for analog noise reduction {LONG-DISTANCE TRANSMISSION SYSTEM FOR ANALOG NOISE REDUCTION}

The present invention relates to a long-distance transmission system for reducing analog noise, and more specifically, to a long-distance transmission system for reducing analog noise that increases the transmission and reception distance by connecting signals using optical channels instead of electrical connections, which have limitations in signal connection. will be.

Taking the prior art related to the long-distance transmission system for reducing analog noise of the present invention as an example, Patent Document 1's encoder output transmission system uses an optical fiber transmission cable to miniaturize the output transmission line of the encoder.

In addition, Patent Document 2, a communication device between the main board and the sub-board, performs communication between the main board and the sub-board using optical or infrared data, and uses a flexible printed circuit board (hereinafter referred to as a flexible printed circuit board) for communication with an external display element. Since it does not use an 'FPCB'), the lifespan of the mobile phone can be extended, and since it uses an optical element that does not generate any noise, RF (Radio Frequency) radiation and sensitivity can be improved.

However, although the prior art allows data communication by connecting the main board and sub-board through an optical channel, there is a problem in that the signal channel distance cannot be increased by introducing an optical channel for analog input and output.

Publication of Patent No. 10-1996-0009464 Encoder output transmission system Registered Patent Publication No. 10-1243260 Communication device between main board and sub board

The purpose of the present invention is to provide a long-distance transmission system for reducing analog noise that increases the signal channel distance by introducing an optical channel to analog input and output.

Another object of the present invention is to provide a long-distance transmission system for reducing analog noise in which analog output information is fed back to an optical transmitter and the optical transmitter equalizes the optical channel.

Another object of the present invention is to provide a long-distance transmission system for reducing analog noise that optimizes channel equalization by adjusting the input sequence according to channel information of analog output.

Another purpose of the present invention is to provide a long-distance transmission system for reducing analog noise that selects and outputs an input sequence appropriate for channel information.

Another object of the present invention is to provide a long-distance transmission system for reducing analog noise that outputs optical channel information to a channel equalization unit and an encoding unit based on analog output information.

A long-distance transmission system for reducing analog noise of the present invention includes an ADC (10) that converts analog input to analog/digital; An optical transmitter 300 including an electrical/optical conversion unit 203 that converts the digital signal of the ADC 10 into an optical signal; and an optical/electrical conversion unit 211 that converts optical signals into digital electrical signals; It is characterized in that it includes a light receiving end 400 including a DAC 20 that converts the digital electrical signal of the optical/electrical conversion unit 211 into an analog output.

In addition, the optical transmitting end 300 receives information about the analog output of the DAC 20 from the feedback unit 215 of the optical receiving end 400, and the electrical/optical conversion unit 203 based on the received information. ), wherein the optical receiving end 400 transmits information about the analog output of the DAC 20 to the control driver 205 of the optical transmitting end 300. It is characterized in that it further includes a feedback unit 215 that does.

Additionally, the control driver 205 includes a preamble unit 2051 that outputs an input sequence to be used for optical channel equalization; The optical channel information of the optical receiving end 400 transmitted from the feedback unit 215 is received through the history unit 2054, and the electrical/optical conversion operation of the electrical/optical conversion unit 203 is performed according to the optical channel information. A channel equalization unit 2052 that controls; an encoding unit 2053 that outputs an input sequence to the preamble unit 2051 with reference to the optical channel information of the history unit 2054; And a history unit 2054 that stores the optical channel information of the feedback unit 215 over time and transmits the optical channel information to the channel equalization unit 2052 and the encoding unit 2053. It is characterized by

Additionally, the encoding unit 2053 includes a lookup table 20531 that stores an input sequence corresponding to optical channel information; a selection unit 20532 that selects an output of the input sequence from the lookup table 20531 according to the optical channel information of the history unit 2054; and an output unit 20533 that outputs the input sequence selected by the selection unit 20532 to the preamble unit 2051.

Additionally, the history unit 2054 includes a timer 20541 that calculates time passage; a recording unit 20542 that records optical channel information of the feedback unit 215 according to the passage of time of the timer 20541; and an output unit 20543 that provides the optical channel information of the recording unit 20542 to the channel equalization unit 2052 and the encoding unit 2053.

The present invention can have the effect of connecting a master and a distant slave without noise effects by increasing the signal channel distance by introducing an optical channel to the analog input and output.

In addition, the present invention can have the effect of providing a long-distance transmission system for reducing analog noise that adapts to the optical channel environment by feeding back analog output information to the optical transmitter and equalizing the optical transmitter to the optical channel.

Additionally, the present invention can have the effect of adapting to channel environments under various conditions by optimizing optical channel equalization by adjusting the input sequence according to the optical channel information of the analog output.

Additionally, the present invention can have the effect of obtaining optical channel information of an optical channel that may vary depending on the environment by selecting and outputting an input sequence appropriate for the optical channel information.

In addition, the present invention can have the effect of smoothly performing optical channel equalization by outputting optical channel information to the channel equalization unit and the encoding unit based on information from the analog output.

Figure 1 is an example diagram showing the connection between a conventional main PCB and a display module.
Figure 2 is an exemplary diagram showing the connection between the main board and the sub board of the present invention.
Figure 3 is a block diagram showing the configuration of a long-distance transmission system for reducing analog noise of the present invention.
Figure 4 is a block diagram showing an embodiment of the long-distance transmission system for reducing analog noise in Figure 3.
Figure 5 is a block diagram showing the configuration of the control driver of Figure 4.
Figure 6 is a block diagram showing the configuration of the encoding unit in Figure 5.
Figure 7 is a block diagram showing the configuration of the history unit in Figure 5.
Figure 8 is an example diagram illustrating hardware resources, operating system, operation of the core control unit, and system authentication configuration that grants authority to execute control unit operations to explain the present invention.

Hereinafter, a long-distance transmission system for reducing analog noise according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. Below, descriptions of previously known matters are omitted or simplified to clarify the gist of the present invention. The components included in the description of the present invention operate individually or in combination.

FIG. 1 is an exemplary diagram showing the connection between a conventional main PCB and a display module. Referring to FIG. 1, the connection includes the main PCB 101, the display module 103, and the FPCB 105.

The main PCB 101 generates control electrical signals for driving the display module 103, and the display module 103 drives screen display according to the control electrical signals of the main PCB 101. The main PCB (101) and the display module (103) are connected through an FPCB (105). FPCB (Flexible Printed Circuit Board) 105 is an electric circuit board made of polyimide or polyester film and given flexible characteristics.

The main PCB 101 and the display module 103 are connected to the FPCB 105 and may be vulnerable to electrical noise. Accordingly, the distance between the main PCB 101 and the display module 103 cannot be increased beyond a certain distance. Additionally, in the case of a servo motor, the distance between the encoder that detects motor rotation and the driver that controls phase switching of the motor according to the sensor value of the encoder cannot be increased beyond a certain distance. The present invention applies an electrical/optical connection device using an optical channel using an optical signal to an electrical channel such as the FPCB 105, and an optical/electric connection device to connect the main PCB 101 and the display module 103 without noise effect. You can.

Figure 2 is an exemplary diagram showing the connection between the main board and the sub board of the present invention. Referring to Figure 2, the main board 200 includes a first converter 201, an electric/optical conversion unit 203, and a control driver 205. ), and the sub board 220 includes a focusing unit 209, an optical/electrical conversion unit 211, and a second converter 213.

In the main board 200, the first converter generates an analog electrical signal, the electrical/optical conversion unit 203 converts the analog electrical signal into an optical signal, and the control driver 205 converts the electrical/optical conversion unit 203 Controls the operation of

In the sub board 220, the focusing unit 209 focuses the optical signal transmitted through the light guide device 207 and transmits it to the optical/electrical conversion unit 211, and the optical/electrical conversion unit 211 converts the optical signal to It is converted into an analog electrical signal, and the second converter 213 operates using the analog electrical signal.

Figure 3 is a block diagram showing the configuration of a long-distance transmission system for reducing analog noise of the present invention. Referring to Figure 3, the optical transmitter 300 includes an ADC 10 and an electrical/optical conversion unit 203. , the light receiving end 400 includes an optical/electrical conversion unit 211 and a DAC 20.

The optical transmitter 300 includes an ADC 10 that converts analog input to analog/digital; It includes: an electrical/optical conversion unit 203 that converts the digital signal of the ADC 10 into an optical signal, and the optical receiving end 400 includes an optical/electrical conversion unit 211 that converts the optical signal into a digital electrical signal; It includes a DAC (20) that converts the digital electrical signal of the optical/electrical conversion unit 211 into an analog output.

Figure 4 is a block diagram showing an embodiment of the long-distance transmission system for reducing analog noise in Figure 3. Referring to Figure 4, the optical transmitter 300 includes an ADC 10, an electrical/optical conversion unit 203, and a control driver. It includes 205, and the light receiving end 400 includes an optical/electrical conversion unit 211, a DAC 20, and a feedback unit 215.

The optical transmitter 300 includes an ADC 10 that converts analog input to analog/digital; An electrical/optical conversion unit 203 that converts the digital signal of the ADC 10 into an optical signal; A control driver 205 that receives information about the analog output of the DAC 20 from the feedback unit 215 of the optical receiving end 400 and controls the operation of the electrical/optical conversion unit 203 based on the received information. ; and the optical receiving end 400 includes an optical/electrical conversion unit 211 that converts an optical signal into a digital electrical signal; A DAC (20) that converts the digital electrical signal of the optical/electrical conversion unit (211) into an analog output; It includes a feedback unit 215 that transmits information about the analog output of the DAC 20 to the control driver 205 of the optical transmitter 300.

FIG. 5 is a block diagram showing the configuration of the control driver of FIG. 4. Referring to FIG. 5, the control driver 205 includes a preamble unit 2051, a channel equalization unit 2052, an encoding unit 2053, and a history unit 2054. ) includes.

The control driver 205 includes a preamble unit 2051 that outputs an input sequence to be used for optical channel equalization; Receives the optical channel information of the optical receiver 400 transmitted from the feedback unit 215 through the history unit 2054, and controls the electrical/optical conversion operation of the electrical/optical conversion unit 203 according to the optical channel information. Channel equalizer (2052); an encoding unit 2053 that outputs an input sequence to the preamble unit 2051 with reference to the optical channel information of the history unit 2054; It includes a history unit 2054 that stores the optical channel information of the feedback unit 215 over time and transmits the optical channel information to the channel equalization unit 2052 and the encoding unit 2053.

FIG. 6 is a block diagram showing the configuration of the encoding unit of FIG. 5. Referring to FIG. 6, the encoding unit 2053 includes a lookup table 20531, a selection unit 20532, and an output unit 20533.

The encoding unit 2053 includes a lookup table 20531 that stores an input sequence corresponding to optical channel information; a selection unit 20532 that selects the output of the input sequence in the lookup table 20531 according to the optical channel information in the history unit 2054; It includes an output unit 20533 that outputs the input sequence selected by the selection unit 20532 to the preamble unit 2051.

The lookup table 20531 stores an input sequence corresponding to optical channel information, and an input sequence appropriate for experimentally obtained channel information can be applied.

FIG. 7 is a block diagram showing the configuration of the history unit of FIG. 5. Referring to FIG. 7, the history unit 2054 includes a timer 20541, a recording unit 20542, and an output unit 20543.

The history unit 2054 includes a timer 20541 that calculates time passage; a recording unit 20542 that records the optical channel information of the feedback unit 215 according to the passage of time of the timer 20541; It includes an output unit 20543 that provides the optical channel information of the recording unit 20542 to the channel equalization unit 2052 and the encoding unit 2053.

FIG. 8 is an exemplary diagram illustrating hardware resources, operating system, operation of the core control unit, and system authentication configuration for granting authority to execute control unit operations for illustrating the present invention. Referring to FIG. 8, the present invention is a processor (1). ), memory (2), input/output device (3), operating system (4), and control unit (5).

The processor (1) is a CPU (Central Processing Unit), GPU (Graphic Processing Unit), FPGA (Field Programmable Gate Array), and NPU (Neural Processing Unit), and the operating system (4) and control unit (5) mounted on the memory (2) ) executes the execution code.

Memory (2) includes permanent mass storage devices such as random access memory (RAM), read only memory (ROM), disk drives, solid state drives (SSD), and flash memory. can do.

The input/output device 3 is an input device, such as a camera, keyboard, microphone, mouse, etc. including an audio sensor and/or image sensor, and an output device such as a display, speaker, haptic feedback device, etc. May include devices. The input/output device 3 includes an ADC 10, an electrical/optical conversion unit 203, an optical/electrical conversion unit 211, and a DAC 20.

The operating system 4 may include Windows, Linux, IOS, virtual machines, web browsers, and interpreters, and supports tasks, threads, timer execution, scheduling, resource management, graphics, font processing, communication, etc.

The control unit 5 determines the state based on sensor, key, touch, and mouse input of the input/output device 3 with the support of the operating system 4 and performs operations according to the determined state. The control unit 5 performs job scheduling by timers and threads using parallel execution routines. The control unit 5 executes the operation of the control driver 205 of the optical transmitting end 300 or the feedback unit 215 of the optical receiving end 400.

The control unit 5 determines the state using the sensor value of the input/output device 3 and performs an algorithm according to the determined state.

Referring to Figure 8, the system authentication configuration includes a terminal 6 including a control unit 5, and an authentication server 7. The terminal 6 may include an optical transmitting end 300, an optical receiving end 400, a main board 200, a sub board 220, a main PCB 101, and a display module 103.

The terminal 6 duplicates the data channel, receives the key value and biometric information of the terminal 6, and requests user authentication through the first data channel to the authentication server 7, and the terminal 6 receives the generated kit value. It is displayed on the display and transmitted to the authentication server (7).

The terminal 6 inputs the kit value displayed on the display of the terminal 6 and transmits it along with the user information to the authentication server 7 through the second data channel. The terminal 6 requests the authentication server 7 to authenticate the system mounted on the terminal 6 using the kit value and user information. The kit value of the terminal 6 can be generated from computer-specific information, such as the CPU manufacturing number and the Ethernet chip number. The terminal 6 can obtain user information through face recognition using a camera, voice recognition using a microphone, and handwriting recognition using a display, and use it for authentication.

The authentication server 7 receives the kit value from the terminal 6, receives the kit value and user information from the terminal 6 through a duplicated data channel, compares the kit value and the user information of the terminal 6, and By matching, authentication for use of the system of the terminal 6 is processed. The authentication server 7 transmits the authentication result to the terminal 6 to authorize the user's use of the system. Due to the dual data channels of the terminal 6, kit value loss can be minimized.

The authentication server 7 performs history analysis of user information and compares and determines consistency and changes in user information over time. In history analysis, if user information shows consistency, the user's use is permitted; if it shows changes, the user's use is not permitted. By allowing users to use the system when user information shows consistency, security is strengthened to prevent users with altered user information from accessing the system.

The terminal 6, which is a means of authenticating the use of the system, does not connect directly to the system, but forms a bypass route through the authentication server 7, so that the network that makes up the Internet network is composed of an internal network and an external network, and the IP address setting process There is an advantage in that the authentication process using the terminal 6 is performed smoothly when this is cumbersome. At this time, the system is mounted on the terminal 6, the terminal 6 becomes an authentication terminal means, and the authentication server 7 becomes an authentication server means.

The cloud (12) is a modularization of the container (14) with the support of the operating system (4) that manages the processor (1), memory (2), input/output device (3), and communication unit (13), web (8), DB ( 9), provides the services of the protocol 10 and the library 11, and the control unit 5 executes a cloud application using the services of the container 14. A standard software package, called a container (14), bundles an application's code with associated configuration files, libraries (11), and dependencies needed to run the app. The cloud 12 is capable of integrated control of the optical transmitting terminal 300, the optical receiving terminal 400, the main board 200, the sub board 220, the main PCB 101, and the display module 103, which are the terminal 6. there is.

Neural network learning selects features from time series data collected from input devices such as temperature, altitude, fingerprints, various sensors, images, infrared cameras, and lidar, selects a model through algorithm selection, and repeats through the learning and performance verification process. Model selection is repeated through trial and error. Once performance verification is completed, an artificial intelligence model is selected.

The control unit 5 performs a deep learning algorithm using a neural network to determine sensor values, uses training data to learn the neural network, and verifies the neural network performance with test data.

The present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by anyone skilled in the art without departing from the gist of the invention as claimed in the claims. Of course, such changes are within the scope of the claims.

1: Processor 2: Memory
3: Input/output device 4: Operating system
5: Control unit 6: Terminal
7: Authentication Server 8: Web
9: DB 11: Library
12: Cloud 14: Container
10: ADC 20: DAC
101: Main PCB 103: Display module
105: FPCB 200: Main board
201: first converter 203: electrical/optical conversion unit
205: Control driver 2051: Preamble unit
2052: Channel equalization unit 2053: Encoding unit
20531: lookup table 20532: selection part
20533: Output unit 2054: History unit
20541: Timer 20542: Logbook
20543: output unit 207: light guide device
209: focusing unit 211: optical/electrical conversion unit
213: second converter 220: sub board
300: Light transmitting end 400: Light receiving end

Claims (4)

ADC (10) that converts analog input to analog/digital; An optical transmitter 300 including an electrical/optical conversion unit 203 that converts the digital signal of the ADC 10 into an optical signal; and
An optical/electrical conversion unit 211 that converts an optical signal into a digital electrical signal; It includes a light receiving end 400 including a DAC 20 that converts the digital electrical signal of the optical/electrical conversion unit 211 into an analog output,
The optical transmitting end 300 receives information about the analog output of the DAC 20 from the feedback unit 215 of the optical receiving end 400, and converts the electrical/optical conversion unit 203 based on the received information. It further includes a control driver 205 that controls the operation,
The optical receiving terminal 400 further includes a feedback unit 215 that transmits information about the analog output of the DAC 20 to the control driver 205 of the optical transmitting terminal 300,
The control driver 205,
A preamble unit 2051 that outputs an input sequence to be used for optical channel equalization;
The optical channel information of the optical receiving end 400 transmitted from the feedback unit 215 is received through the history unit 2054, and the electrical/optical conversion operation of the electrical/optical conversion unit 203 is performed according to the optical channel information. A channel equalization unit 2052 that controls;
an encoding unit 2053 that outputs an input sequence to the preamble unit 2051 with reference to the optical channel information of the history unit 2054; and
and a history unit 2054 that stores the optical channel information of the feedback unit 215 over time and transmits the optical channel information to the channel equalization unit 2052 and the encoding unit 2053. A long-distance transmission system for reducing analog noise. delete delete According to paragraph 1,
The encoding unit 2053,
a lookup table 20531 that stores an input sequence corresponding to optical channel information;
a selection unit 20532 that selects an output of the input sequence from the lookup table 20531 according to the optical channel information of the history unit 2054; and
An output unit (20533) that outputs the input sequence selected by the selection unit (20532) to the preamble unit (2051). A long-distance transmission system for reducing analog noise, comprising:

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