KR100542608B1 - Communication system and communication method using powerline - Google Patents

Abstract

The present invention relates to a communication system capable of transmitting data and moving images using a power line, and more particularly, to a high speed power line communication system and a communication method capable of using all power lines in a voltage range of 5V or more.

In addition, the present invention provides a communication system that can be used together with the power line communication method to the communication method using the optical cable telephone line of the Internet communication system currently used as the communication system as a dedicated line.

The present invention also provides a power line communication program, a modem configuration system, and a communication method capable of performing Internet communication with a power line communication system by using a power line in an Internet communication ISP (server).

The ultra-high speed power line communication system according to the present invention is a communication modem unit (PCI-type modem slot mounting unit) and a transformer capable of performing power line communication using a PC (computer) driving power introduced as a communication user for high-speed communication as a power line communication dedicated line, and a transformer Detection software system that can detect abnormal obstacles in power lines during power communication, hardware modification programs that can detect obstacles and correct abnormalities, and general leased lines (optical cable, LAN, modem, coaxial cable) This is an (ISP connection program) drive program that can connect and communicate, and is composed of a drive program of hardware capable of high-speed power line communication.

Power line, modem, connector part, detection circuit part, control device part

Description

Communication system and communication method using powerline

1 shows a conventional power line remote meter reading system.

2 is a diagram illustrating a communication system using a conventional power line network.

3 illustrates a power line communication system of the present invention.

4 is a flowchart of a power line communication modem in accordance with the present invention.

5 is a diagram illustrating an ISP connection and a power line communication system using a power line according to the present invention.

※ Explanation of code about main part of drawing ※

 1: modem control unit 2: power line

3: transformer 5: compensator
6 power measurement unit 7 voltage measurement unit

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 8: transformer quantity unit 9: frequency resonance measuring unit

 10: frequency variation measuring unit 13: main power circuit unit

 14 clock generation circuit 23 distance determination circuit

24: alarm sound generating circuit 25: fault detection circuit
100: PC 101: power line PLT modem
106: ISP network equipment

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BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system capable of transmitting data and moving images using a power line, and more particularly, to a high speed power line communication system and a communication method capable of using all power lines in a voltage range of 5V or more.

The high-speed power line communication system according to the present invention uses a drive power of a computer (PC) introduced as a communication user for high-speed communication as a power line communication dedicated line, and a communication modem unit (PCI type modem slot mounting unit) capable of power line communication and It consists of a detection system that can detect abnormal obstacles in the power line during power communication, such as a transformer, a hardware correction program that can detect obstacles and correct abnormal changes, and a hardware drive program that enables high-speed power line communication. do. In addition, the communication system is a communication method using a dedicated line in the host of power line communication, and a dedicated communication line using LAN, modem, dedicated line optical cable and coaxial cable on the guest side and ISP (SUB) side. Regardless of whether communication is possible.

A conventional high speed communication system will be described with reference to FIGS. 1 and 2.

1 illustrates a conventional power line remote meter reading system. The conventional power remote meter reading system using a power line, which is converted into a communication signal through the power line modem 73 and the remote meter reading control device 72 connected to the substation 71 through the power line 70, and the remote meter reading control signal Substation control device unit 74, a line coupling device unit 76 for transmitting a communication signal to the remote meter reading converted by the power line modem 73 using the high voltage line 75, and the line coupling device unit 76 It is composed of a user meter control system 79 for separating the communication signal transmitted only through the high-voltage line (75) into a power line or a signal signal uniformly through the low-voltage wire network power line 78.

Further, the user meter reading control system 79 includes a line coupling unit 80 for inputting and outputting data communication through the signal coupling device unit 77 and the low voltage wire network power line 78, and from the line coupling unit 80. A power line modem 81 for converting input and output communication signals into a signal of a predetermined type, and a central control unit for controlling the function of the power line modem 81 and controlling the function of the low voltage wiring network power line 78 of the customer reading system. And a power meter 83 that transmits measurement data of the amount of power in accordance with the remote metering control signal of the central control unit 82.

Next, referring to Figure 2 another configuration of the prior art,

As shown in FIG. 2, an optical cable, a coaxial cable installed for data communication of the high-speed communication dedicated network 31, and a telephone and communication dedicated LAN communication and a power line 33 introduced into a customer to transmit data communication signals It is composed of a power line modem 49 of a consumer connected to the power line communication transmission unit 34 and the high-speed communication dedicated line network 31 and capable of communicating at a frequency of 10 Hz to 450 Hz using a frequency division scheme. A signal repeater 36 is connected between the power line 33 and the power line modem 49 installed at each customer to filter, amplify, and relay data communication signals. The signal repeater 36 may be installed on a pole installed near the customer and the power line 33 is connected to a pole transformer (not shown in the city).

In addition, the conventional ultra-high speed communication system shown in FIG. 2 transmits a signal to the power line communication transmission unit unit 34 and the power line 31, and is connected between the signal coupling unit unit 37 and the power line 31 and the power line 33. And a power line modem 38 for processing data signals input and output through Power line communication amplification that amplifies the signal from the input filter 39 for filtering the data signal inputted from the power line to a constant frequency of 10 Hz to 450 Hz and the FM modem 40 that modulates the input frequency signal. And a signal separation filter for blocking input / output of the data signal to be bidirectionally or modulated.

The prior art described with reference to FIGS. 1 and 2 as described above has the following problems and disadvantages.

1. In the above-described prior art, in order to perform power line communication, a power line can not directly pass through a transformer, and a power line is used to draw in a customer, and a dedicated line is provided with a large distance necessary for communication. Since a filter power line communication amplifier, an FM modem, a low pass filter, a full bridge power amplifier, a comparator, etc. must be installed, installation cost becomes high and manufacturing cost increases.

2. In addition, the occurrence of noise is increased due to the installation of such additional auxiliary facilities, so that the communication speed is reduced and remote communication is impossible.

 SUMMARY OF THE INVENTION The present invention has been made in view of the problems described in the above-described configuration of the prior art, and is intended to provide a high speed communication system capable of executing high speed communication while solving such problems.

The present invention provides a high-speed communication system and a communication method using a power line network capable of performing power line ultra-high speed communication, for example, by installing a hardware program in a PC and installing a PC built-in PCI type modem in power line communication.

In addition, the present invention can transmit all the data on the communication up to a high voltage current of 110V to 32㎸ of home power, the bypass condition of the transformer, the line coupling device unit, the input filter power line, power line communication amplifier, FM modem unit, low-pass filter It is to provide a power communication system capable of transmitting data and moving pictures without separate facilities.

In addition, the present invention is to provide a power line communication system that can transmit and communicate data at the same time dozens of people at the time of no-load conditions during the high-speed communication, such as data of the power line communication, moving pictures.

In the power line communication system according to the present invention, in order to remove the noise in the power line during data transmission and to perform the second transmission, a noise removal software system and a modem are programmed, and the transformer is a transmission / reception oscillation circuit section of a hardware system section, a resonance system, a detection circuit section. The system detects whether the transformer passes (frequency fluctuation) in the hardware system, and detects the main generated signal of hardware and software by measuring the amount of power, voltage, disconnection, and frequency fluctuation by the hardware calibration program. Detects the problem, the quantity of transformer, resonance value of transformer, abnormality of resonant circuit, sends it to the detection circuit system part on hardware, and complements and corrects it in the correction program to execute secondary power line communication. It is configured to run as a supplement.

In addition, the present invention includes a communication program and modem capable of performing power line ultra-high speed Internet communication, and can communicate at a power consumption of 4.5 V (communication use current) to 32 kW, and transmit all data on the communication to a DC power line. It is to provide power line communication system that can connect and communicate with power line and general ISP equipment by combining with power line and general LAN and modem communication.

Further, in the conventional power line communication system, separate facilities such as a power line communication amplifier, an FM modem, a low pass, and a frequency filter are required, but the power line communication system according to the present invention can transmit data and moving images without such separate facilities. It has merit.

The power line communication system according to the present invention enables power line communication by removing noise in a power line and filtering a frequency during data transmission, and then converting the data into a data to soften a power line communication program and performing noise removal and frequency filtering by the program. .

In the above system, the noise is removed by the communication program up to the primary column transformer and the noise generation is numerically controlled by program operation processing technology to classify the noise and control the program so that the noise does not deviate from the preliminary example value. To manage.

Further, in the above system, the filtering processing technique is a technique using a program amplifier which transmits a frequency (soft program) and manages it by a forced transmission method when data is transmitted, and power line communication by programming a conventional electronic device condition. Is a high-speed power line communication program.

In the present invention, in the present invention, a system for resonating the frequency in proportion to the load in the transformer was developed in the present invention, and the resonance in the resonant circuit part was resonated per 0.15 seconds in the resonant circuit section (frequency load factor). 250,000 first. Secondary 350,000. Third round 450,000. By resonating the frequency in the fourth-order 550,000 transformer by proportional power conversion of the transformer by the proportional resonance (inventor name) of the transformer part in the program, it can pass through the transformer.

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In addition, the area through which the transformer data passes uses the impedance of the primary winding part in the secondary winding part as a reference for the primary frequency resonance using a large load, thereby preventing the deformation of the frequency of the data. .

On the other hand, the present invention, as described above, while solving the problems of the prior art using the power line that is the intermediate medium between the consumer PC and the user PC for the high-speed communication as a communication cable and the ISP connected to the communication coaxial cable and optical cable connected to the user PC The power line driven by the equipment is used as a communication connector to communicate with the power line.

In addition, the present invention has been developed a technology for filtering out frequencies other than the band frequency of the user of all communication devices, and remove the noise generation, and the present invention uses the noise generated in the communication device as a specific frequency important for communication It was designed to drive power lines and Internet communications.

In addition, the present invention can be shared in the above-described power line communication in all conditions of the current user's web server (ISP).

The communication method of power line communication is a communication connection. Under all conditions necessary for the server's communication, the power line communication program's IP (address) can be used to communicate by forced calling. In addition, the communication method forcibly drives the same program structure as that of the PC where the power line communication program is installed on the host, uses the main power multi of the web server (ISP) as an input unit, and a part of the central processing unit of the web server (ISP). It is a power line communication program that can connect and improve data.

In addition, the communication configuration of the power line communication driving computer of the power line communication user during operation is to install the power line communication program and the communication modem, and use the incoming power line of the computer as the communication line by using the communication line as the communication line using the power line and use the web (ISP). It is a communication method that configures power line communication by using incoming power line of web server as communication line when connecting to server.

It should be noted that the present invention uses a method of driving power line internet communication and a power line as a communication line.

Power line communication according to the present invention can communicate up to the connection portion of the power and coaxial cable, and builds a system by data. Power line communication system according to the present invention is a system that can be connected to 18 to 250,000 people at the same time, the technical configuration of the present invention is composed of a PC drive program and modem capable of power line communication.

In addition, the software system can detect abnormalities in the transformer, which is a problem in power communication, and can prevent data loss and loss, thereby providing users with a power line communication system that maximizes communication reliability and communication quality. .

Advantages of the present invention will become more apparent from the following detailed description with reference to the accompanying drawings.

First, referring to FIG. 3 and FIG. 4, the ultra-high speed communication system according to the present invention is a power line (2) which is led to the electrical outlet wired to the user modem built-in PC (100: PC) of the power line ultra-high speed communication line network By connecting, it is comprised so that high-speed communication of power lines can be performed.

The power line ultra high speed communication PC (100) includes a modem control unit (1), a correction unit (5), a power measurement unit (6), a voltage measurement unit (7), a transformer water supply unit (8), a frequency resonance measurement unit (9) and It is composed of a frequency variation measuring unit 10.

In addition, the modem control unit 1 of the system includes a main power supply circuit unit 13, a clock generation circuit 14, a timing generation circuit 15, a transmission oscillation circuit 16, a transmission amplifier 17, a transmission and reception unit 18, 19), the addition circuit 20, the filter circuit part 21, the detection circuit part 22, the distance discrimination circuit 23, the alarm sound generation circuit 24, the fault detection circuit 25, etc. are comprised.

Here, when the data signal is processed in the power line communication PC 100, the correction unit 5 may set the amount of power introduced into the PC 100, voltage, necessary compatibility in the system, sharing of all user PCs, and the like through a correction program. In addition, when measuring the amount of power in the power measuring unit 6, if the tolerance of the inlet is ± 20V, the power line communication system connected to the program of the power line communication system whether the abnormality or proportional current in the power line line Communication problems can be corrected using a calibration program.

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The power line communication system according to the present invention compares a preset value set by a correction program with a correction value set by receiving a modulated signal of frequency input from the transmitting oscillation circuit 16 and the filter circuit unit 21, and the square wave pulse. Emits a data signal in form. Then, the distance discrimination circuit 23 detects the position between the receiver and the receiver and the position of the sender when the frequency is emitted. The detected information is input to the adding circuit 20 to numerically calculate the state of the data transmission frequency of the transformer driver for each position and the quantity of the transformer output from the transformer water quantity unit 8. The calculated results are compared and discriminated through a correction program, and the data is transmitted. When the data cannot be transmitted due to an abnormality of the discriminating unit, a corresponding preset value is set using the frequency variation measuring unit 10 and the frequency resonance measuring unit 9. Check the frequency range. After resonating the transformer using the set virtual frequency, the frequency of the transformer is adjusted to the number of transformers in the self-idle state, and then data is generated and the generated data is transmitted.

In addition, as the current is increased in the power lines 2, 26, and 27 when the frequency is resonated, the magnetic field is formed to increase, and thus the communication environment for transmitting and receiving data may not be provided. Comparing the value set in the correction program with the correction value received by the correction program by inputting the modulation signal, and using the result, the data communication method for generating and transmitting data and the method using the line formed by the power line cable are used. It is configured to transmit.

     In the power line communication data system of the present invention, when a problem occurs on the power line coaxial cable and the transformer water supply unit 8 installed on the pole, and the transmission on the communication is not performed, the data transmission system under the following conditions To change.

The system of the failure detection circuit 25 measures the power of the system in the calibration program when data transmission is not performed due to its own abnormality such as disconnection in the coaxial cable of the power lines 2, 26, 27 and the transformer water supply unit 8. When a detection abnormality occurs in the unit 6, the voltage measuring unit 7, the transformer quantity measuring unit 8, the frequency resonance measuring unit 9, and the frequency variation measuring unit 10, the quantity of transformer is detected by the fault detection circuit 25. If the communication transmission of the unit 8 is not made, the alarm sound generating circuit 24 drives an abnormal alarm, and the fault detection circuit 25 and the distance discrimination circuit 23 determine the position of the initial receiver to provide a correction program. The system automatically converts the system and transfers the data by changing the track.

In the conventional bridge power amplifier, a switching amplifier and a linear amplifier are used. The switching amplifier has no operational output resistance and voltage loss in the saturation region or the cut-off region of the transistor. Since linear amplifiers operate in the active region of transistors, many switching amplifiers have been used, which cannot produce zero output resistance.

However, in the present invention, since the magnetic field of the power line communication and the power line coaxial cable are used at the same time, the power line communication can be performed regardless of the distance at the current inlets of all the power lines, and the power line bypasses when the power is cut off due to the occurrence of the power line abnormality. And power line cables.

Next, the operation of the power line communication system of the present invention will be described based on the above-described configuration.

In the power line communication system according to the present invention, first, a user uses power lines 2, 26, and 27, for example, by using a power communication program built in a hardware unit system of PC 100, such as the Internet on the current communication. You can use the program of all websites, and connect the power connector (low current 4V, 6V, 12V) of the power supply of the PC 100 to the modem of the slot-type PCI modem in the PC of the software section, It can be wired to a power line.

The PC 100 connection of power line communication between the customer and the user may be configured in the same condition as the customer, for example, by installing hardware and software in the PC, and performing power line communication by a correction program of an internal program. The calibration program is a basic program that can perform power communication. The user can transfer data synchronously or asynchronously, data frequency modulation method, operation method, command buffer, modulation speed, response signal, line impedance, hand signal, frequency tolerance, line acquisition method, Since the conditions such as communication speed, external interface, transformer quantity, resonance measurement, resonance, frequency measurement, frequency resonance, power measurement, and voltage measurement can be checked, correct them by considering them.
The user checks the above conditions of the correction program, and the fault detection circuit 25 detects a problem occurring under conditions other than the detection in the power line communication program, so that the communication can be smoothly performed through the system. In the fault detection circuit 25 and the calibration program, the standard and characteristics of a general modem are checked and set. The PC signal and the detector oscillation circuit 16 transmit a transmission frequency of a communication system, for example, a band frequency of 20 to 2100 Hz. Allow to transmit.

In addition, since the power line program is composed of DOS operating system and WINDOWS operating system of hardware and software of primary power line communication, DOS and Windows are shared by all PCs of 386 or higher level, and thus power line communication is performed. Can be done.

As an example of power line communication, frequency division frequency division multiplexing (FDM) is one of the power lines (2, 26, 27) for dozens of users to share and transmit data at the same time, the modulation scheme is a telecommunications exense scheme It is used for TTC (Treiis Code Modulation) and Quadrature Amplitude Modulation (QAM), and when sending data signal by frequency modulation method, for example, 20 ~ 34 으로 is needed as a band, magnetic field and power line in power line Since the problem with the cable is eliminated, no data loss occurs due to filtering and distribution amplification such as noise.

Next, referring to FIG. 5, the ultra-high speed communication system according to the present invention includes a power line drawn into a power line 102 of an electrical outlet wired to a user modem of a power line ultra-high speed communication dedicated line network. Power line communication modem is installed in a built-in slot PCI method (modem mounting method) and a power line into which the power line 102 of an electrical outlet wired to the user PC 101 is inserted. A power line communication modem capable of performing high-speed communication of power line by attaching a power line communication modem to the system and connecting a power line 102 to the user PC 101 to the power line communication modem and an output / input terminal to the power line. At this time, the configuration of the modem control unit 1 of the power line system is as described above.

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In the power line communication, when the power measurement unit 109 measures the amount of power, if the tolerance of the power inlet unit is ± 20 V, the power line communication system may determine whether there is an abnormality in the excess or proportional current of the power inflow amount in the power line communication program. The calibration program is calibrated, and the power program is driven by the amount of power necessary for communication between the detection program and the rated current. The above problems are solved by the calibration program, and the voltage measuring unit 110 measures the current voltage. By calibrating the frequency of the power line communication of the PC 101 and preventing the deformation of the band frequency band to protect the communication.

In the power line communication system according to the present invention, a set value (set value: current inflow value driven by a PC, a voltage used in each PC and an error value) is input (initial setting) to a calibration program, and used domestically and internationally. Initially set the average error value of power by ± 20V numerically and the frequency of noise generation (frequency per unit) in the calibration program, and install it after correcting the communication quality.

Currently, each power line measurement data required for the power communication does not need to be separately input (optional installation) as an input to a communication program.

It emits a data signal of each pulse type and detects the position between the user and the receiver and the sender's position (IP) and modulates the state of the transformer and the data (frequency) and the frequency load condition (transformed when the transformer passes through) by the adder circuit 20. Frequency), and determine whether the communication is connected through a correction program to calculate the modulation value of the frequency in case of abnormal data loss, and the frequency resonance measuring unit 112 passes through the transformer without data loss.

The frequency resonance measuring unit 9 and 112 and the frequency fluctuation measuring unit 10 have a program structure on a program name under the pseudonym of the present inventor, and can perform power line communication regardless of any load and noise in the transformer when the frequency is resonant. Contains a program to make it work.

In addition, the magnetic field phenomenon formed in the power line increases as the current is boosted in the power line 102 during the resonance driving of the frequency. According to the compensation program of the present invention, as the strain point of the frequency becomes larger as the characteristics of the coaxial cable without the influence of the magnetic field, It is confirmed by this calibration program that stability and transmission speed are proportional, and power line communication is possible.

In the present invention, when the communication connection is not made due to disconnection or short circuit of the power line during power line communication (when the frequency transmission cannot be made or the communication connection is impossible when the modem circuit is configured), an error occurrence message is transmitted from the power line communication PC 101. It may include an abnormality correction unit 126 to transmit to. Therefore, in the present invention, since the program is configured to recognize the communication problem, the user can immediately take any problem in the power line communication.

Further, in the power line communication data system of the present invention, when a problem occurs in power line communication in power disconnection, repair, or construction due to power line coaxial cable disconnection and electrical supply problem installed on a pole, the following transmission is not preceded. To change the powerline communication system.

The failure detection circuit 25 is a power measurement unit 109, voltage measurement unit 110 of the system in the correction program when the data transmission is not made due to its own abnormal occurrence, such as the disconnection through the coaxial cable and the transformer of the power line 102 ), The faulty circuit in the main circuit transformer 101, and the intermediate position of the earth leakage, short circuit, and short circuit communication (for example, when the power line is disconnected or disconnected from 40 to 70 km in the 100 km communication section). The system detects and automatically converts a system capable of changing (bypassing) a line by the communication program in the fault detection circuit 25 to transmit data and correct the communication so as to facilitate communication.

In addition, power line communication and general LAN modem line users use the power line before the ISP equipment in the power line communication section, so it is impossible to check the disconnection of the communication line when using other communication lines after the ISP equipment.

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As described above, according to the present invention, the present invention is capable of transmitting data at a high speed by mounting a modem in a general PC and combining a transmission / reception unit terminal of the power communication modem with a power rating device connector inside the PC. Even if the accessor of the data sharing and communication at the same time can transmit data at ultra-high speed, modem speed 10 MBPS to 1.5 GMBPS (experimental results).

In addition, it is not necessary to install facilities such as a dedicated line LAN, an optical cable, a telephone line, and a general repeater for power line communication, and it is possible to control all home appliances that require a power source such as a digital TV or a telephone during power line communication.

In addition, a power line modem (PCI method) is mounted in a slot in the customer's PC, and an input / output line of the power line communication modem is inserted into the low current connector portion of the PC driver and a hardware and software program is installed in the PC to install the power line communication user. High speed power line communication is possible by connecting to ISP (web server equipment), so existing network equipment can be used as it is and no new network configuration is necessary.

When transmitting data and video, it can be transmitted to current transformers without any loss of data, and can control all household appliances that use power, such as PCs, TVs, digital phones, etc. You can control its operation and the like without installing it. In addition, the system is configured to control and manage home and office operations using the Internet phone.

In addition, it is possible to perform a long distance communication of more than 200km when transmitting data using a power line, for example, conventionally required a signal repeater (amplifier) per km (1 to 30km), in the present invention, there is no need for such a power line, Data and video and video can be up to 50 Mbps or more using only a communication method and a modem, and data can be transmitted simultaneously by hundreds of thousands while reducing noise significantly, thereby increasing the reliability of the communication system.

So far, the ultra-high speed communication system and communication method using a power line according to the present invention, and the Internet communication system and communication method using a power line have been described in detail with reference to the accompanying drawings. However, the invention is not limited to the embodiments described herein, of course, other modifications and variations are possible by those skilled in the art within the spirit and scope of the claims according to the invention.

Claims (10)

In a power line communication modem using a power line network that can transmit data using a power line as a communication cable, The modem includes a correction unit for correcting an abnormality in the over- and proportional currents in the power line by means of a pre-stored correction program. The modem directly connects a modem connector to a power supply device for supplying power to the modem, and is used as a communication line. Communication system using a power line, characterized in that. The method of claim 1,       A communication system using a power line provided with the modem in the slot. delete delete In a communication system using a power line, A power line including a communication modem connected to a PC and an ISP device (web server) from a user PC to a software program, wherein the communication modem includes a correction unit for correcting abnormalities in over and proportional currents in the power line by a pre-stored correction program. Communication system using the. The method of claim 5, And a power line for connecting the modem to the ISP by power line communication by the power line program. The method of claim 5, The power line communication system using a power line including a configuration program for transmitting external CCTV and video. The method of claim 5, The power line communication system using a power line including a configuration program that can automatically detect a street lamp, water supply, heating heat (heat exchanger) power meter. The method of claim 5, A communication system using a power line including a configuration program capable of relaying a wired video telephone and a wireless telephone by the power line communications. The method of claim 5, A communication system using a power line including a configuration program capable of receiving a wired TV in the power line communication.

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