KR20170088711A - Power line communication recevicer for reducing noise and power line communication system using there - Google Patents
Power line communication recevicer for reducing noise and power line communication system using there Download PDFInfo
- Publication number
- KR20170088711A KR20170088711A KR1020160008959A KR20160008959A KR20170088711A KR 20170088711 A KR20170088711 A KR 20170088711A KR 1020160008959 A KR1020160008959 A KR 1020160008959A KR 20160008959 A KR20160008959 A KR 20160008959A KR 20170088711 A KR20170088711 A KR 20170088711A
- Authority
- KR
- South Korea
- Prior art keywords
- power
- data
- power line
- line communication
- bridge circuit
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
- H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
BACKGROUND OF THE
Power Line Communication (PLC) is a communication technology that transmits data at high speed through a power line that supplies power to various devices. It is equipped with a separate line or input / output port for communication of each device performing power line communication There is a lot of research going on recently due to the advantage that it is not necessary to provide.
Conventionally, power line communication has been studied mainly for AC power line communication, which transmits data through a power line for transmitting AC power. However, since demand for using power line communication in a DC power based system such as a vehicle is increasing, Research on the transmission of power line communication is becoming active.
In the power line communication for transmitting DC power, since it is required to be configured to transmit data together with power through two power lines, it is possible to instantaneously short-circuit two power lines while applying a DC voltage to generate an on-off signal Thereby transferring the data. However, if the communication method for short-circuiting the power line and generating the on-off signal is used for a long time, a load applied to various parts of the transmitting apparatus and the receiving apparatus of the power communication system becomes large, and malfunction may occur. Therefore, there is a problem that the durability and reliability of the power line communication system are deteriorated. In order to stably obtain power in a receiving apparatus, noise is usually removed by using a capacitor and a diode. However, since a back electromotive force generated in a diode affects various parts of a transmitting apparatus and a receiving apparatus, May occur.
An object of the present invention is to provide a power line communication receiving apparatus capable of reducing noise and improving communication quality and durability by minimizing mutual interference between data and power to be transmitted by separately processing data and power.
According to an aspect of the present invention, there is provided a power line communication receiving apparatus including: a filter unit connected to two power lines to remove noise from a power source and data applied through a power line; First and second bridge circuit units connected at one end to the other end of the filter unit in parallel to rectify the power source and the data applied through the filter unit, respectively; A power distribution unit for filtering the data among the power and data rectified by the other end of the first bridge circuit unit, for voltage-dividing the power source and transmitting the voltage to a reception control unit; And a data acquiring unit for acquiring the data among the power and data applied from the second bridge circuit unit under the control of the reception controller, amplifying the voltage level of the data, and transmitting the amplified voltage level to the reception controller; .
Therefore, The power line communication receiving apparatus and system capable of reducing noise are provided with two bridge circuit sections in a power line communication in which power and data are both supplied through a power line so that data and power are separated from each other and processed separately by a separate path, Minimizes the mutual interference of data with the data, reduces the load that can be generated on the part according to the data value, and reduces noise to enable reliable power line communication.
Fig. 1 shows an example of a circuit configuration of a transmission apparatus for power line communication according to an embodiment of the present invention.
Fig. 2 shows an example of the circuit configuration of a receiving device for power line communication according to an embodiment of the present invention.
In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. However, the present invention can be implemented in various different forms, and is not limited to the embodiments described. In order to clearly describe the present invention, parts that are not related to the description are omitted, and the same reference numerals in the drawings denote the same members.
Throughout the specification, when an element is referred to as "including" an element, it does not exclude other elements unless specifically stated to the contrary. The terms "part", "unit", "module", "block", and the like described in the specification mean units for processing at least one function or operation, And a combination of software.
Fig. 1 shows an example of a circuit configuration of a transmission apparatus for power line communication according to an embodiment of the present invention.
As shown in FIG. 1, the control unit (MCU) in the transmission apparatus of the power line communication transmits and controls the power control signal PW_CON to the second switch QA2. The base voltage of the first switch QA1 is varied by the second switch QA2 turned on and off in response to the power control signal PW_CON. To the communication line which is the power line.
On the other hand, the control unit MCU transmits the transmission signal ROOM_TX to the third switch QA3 in order to transmit data through the communication line, and the third switch QA3 switches the second switch QA2 to the communication line And turned on / off in response to the transmission signal ROOM_TX while the power source PW is not transmitted. When the third switch QA3 is turned on, the voltage level distributed by the second and third resistors RA2 and RA3 and the sixth resistor RA6 is transmitted to the communication line while the third switch QA3 is turned off The power supply PW is not applied to the communication line. That is, the first level or the second level voltage can be transmitted through the communication line, so that data can be transmitted.
In addition, the control unit (MCU) senses whether a signal equal to or higher than the voltage level corresponding to the voltage level set in the Zener diode ZDA1 is applied through the communication line.
Fig. 2 shows an example of a circuit configuration of a receiving device for power line communication according to an embodiment of the present invention.
2, the receiver of the present invention includes a filter unit FT for removing noise primarily by having two inductors LA2 and LA3 connected to a communication line and a capacitor CA2, And two bridge circuit parts BC1 and BC2 connected to the part FT. Each of the two bridge circuit units BC1 and BC2 is provided with four diodes so as to perform a rectifying operation.
The rectified voltage of the first bridge circuit unit BC1 is removed by the one capacitor EC2 and the voltage of the AC component is divided by the two resistors RA9 and RA11 to be applied to the power supply of the reception control unit SUB MCU do. At this time, the reception control unit SUB MCU can discriminate the applied voltage level. That is, whether the power is stably applied.
On the other hand, the rectified voltage of the second bridge circuit unit BC2 is not applied to the receiving control unit SUB MCU while the second switch QC2 is on by the receiving control unit SUB MCU activating and transmitting the transmitting signal TX Do not. On the other hand, the reception control unit SUB MCU activates and outputs the transmission signal TX to be applied to the zener diode ZDA2 when the second switch QC2 is turned off. Here, the Zener diode ZDA2 is provided to attenuate the noise of the OFF signal. If the voltage rectified in the second bridge circuit portion BC2 is equal to or higher than a level corresponding to the voltage level set in the zener diode ZDA2, the voltage is applied to the comparator CMP, and the comparator CMP is applied through the zener diode ZDA2 To the reference voltage specified by the two resistors (RA8, RA13), and transmits the correct data to the receiving control unit (SUB MCU).
The method according to the present invention can be implemented as a computer-readable code on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and a carrier wave (for example, transmission via the Internet). The computer-readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.
Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.
Claims (1)
First and second bridge circuit units connected at one end to the other end of the filter unit in parallel to rectify the power source and the data applied through the filter unit, respectively;
A power distribution unit for filtering the data among the power and data rectified by the other end of the first bridge circuit unit, for voltage-dividing the power source and transmitting the voltage to a reception control unit; And
A data acquiring unit for acquiring the data from the power supply and the data applied from the second bridge circuit unit under the control of the reception controller, amplifying the voltage level of the data, and transmitting the amplified voltage level to the reception controller; The power line communication apparatus comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160008959A KR20170088711A (en) | 2016-01-25 | 2016-01-25 | Power line communication recevicer for reducing noise and power line communication system using there |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160008959A KR20170088711A (en) | 2016-01-25 | 2016-01-25 | Power line communication recevicer for reducing noise and power line communication system using there |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170088711A true KR20170088711A (en) | 2017-08-02 |
Family
ID=59652059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160008959A KR20170088711A (en) | 2016-01-25 | 2016-01-25 | Power line communication recevicer for reducing noise and power line communication system using there |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20170088711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230045378A (en) * | 2021-09-28 | 2023-04-04 | 지에프텍 주식회사 | Device and method for recovering digital signal damaged by line resistance and noise |
-
2016
- 2016-01-25 KR KR1020160008959A patent/KR20170088711A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230045378A (en) * | 2021-09-28 | 2023-04-04 | 지에프텍 주식회사 | Device and method for recovering digital signal damaged by line resistance and noise |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10897163B2 (en) | Wireless power transmitter | |
| US6906618B2 (en) | Method and system for bidirectional data and power transmission | |
| KR101976909B1 (en) | Wireless power reception apparatus, and circuit and method for controlling same | |
| KR100691271B1 (en) | A constant voltage circuit for power adaptor | |
| EP1607756A2 (en) | Malfunction detecting apparatus for on-vehicle charging system | |
| US10186982B2 (en) | Dual-input single-output power supply | |
| US7372683B2 (en) | Over voltage detection circuit, and power source circuit, power supply system and electronic apparatus using the over voltage detection circuit | |
| US20130229054A1 (en) | Network and method for operating a network | |
| US20190118857A1 (en) | Electric power steering apparatus having increased number of sensor signals for safety enhancement | |
| US9335744B2 (en) | Transponder | |
| CA2947465A1 (en) | A system and method for fault ride through | |
| CN106940685B (en) | Power supply circuit of RS232-485 passive converter | |
| KR20170088711A (en) | Power line communication recevicer for reducing noise and power line communication system using there | |
| KR102593912B1 (en) | Mode-changeable power supply circuit and smart card including the same | |
| JP2923721B2 (en) | Power balance control method | |
| JP6308551B2 (en) | Electric motor control device | |
| EP3404841B1 (en) | Two wire power and serial communication | |
| CA2519343C (en) | Communications device powered from host apparatus | |
| US20210281525A1 (en) | Gateway device | |
| JP2006271137A (en) | Power supply system | |
| JP2015101114A (en) | Vehicle data acquisition device and communication load control program of vehicle network | |
| KR20100125964A (en) | Power supply and ultrasonic system using the power supply | |
| US9479045B1 (en) | Power supply avoiding auxiliary boost circuit over voltage | |
| CN210091373U (en) | Interface arrangement between a control device of a direct current motor and a commutation electronics system | |
| US11165256B2 (en) | Power supply system and power monitoring device |