CN201878140U - Low-voltage power line carrier communication module - Google Patents
Low-voltage power line carrier communication module Download PDFInfo
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- CN201878140U CN201878140U CN2010206641779U CN201020664177U CN201878140U CN 201878140 U CN201878140 U CN 201878140U CN 2010206641779 U CN2010206641779 U CN 2010206641779U CN 201020664177 U CN201020664177 U CN 201020664177U CN 201878140 U CN201878140 U CN 201878140U
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Abstract
The utility model discloses a low-voltage power line carrier communication module, which comprises a power supply circuit, a carrier control circuit, a carrier signal transmitting circuit, a carrier signal receiving circuit and a carrier signal coupling circuit, wherein the carrier control circuit is a carrier control chip RISE3501; the carrier signal transmitting circuit is a multistage triode amplifying circuit; the carrier signal receiving circuit is a two-order filter circuit, the center frequency of which is 132kHz; the carrier signal coupling circuit is a 132KHz carrier signal impedance matching resonance coupling circuit; and the power supply circuit is a power supply chip SP6203 for converting a 5V power supply provided by a base meter into a 3.3V power supply and supplying power to modules. The low-voltage power line carrier communication module has the advantages of simple structure, small volume, low cost and use convenience (module plug type), can complete data exchange among electronic terminal equipment in a power line communication network, and has the functions of communication relay, active report, automatic monitoring of carrier nodes and the like.
Description
Technical field
The utility model relates to the low-voltage collecting meter reading field in the power industry, particularly a kind of low-voltage powerline carrier communication module.
Background technology
Continuous development along with the current communication technology, people are also more and more higher to the requirement of power industry communication level, wherein the construction of Automatic meter reading system is the focus of research, automation is at present checked meter and is mainly contained wireless telecommunications (GPRS) mode, wire communication (RS485) mode and electric line carrier communication mode, wherein the electric line carrier communication mode has self a lot of advantage with respect to wireless telecommunications (GPRS) mode and wire communication (RS485) mode, it has bright development prospect, because it does not need to spread in addition circuit, its cost is low, Installation and Debugging are convenient.Yet owing to power line is not to aim at transmission signals to design, and the principal element that influences the power line carrier signal transmission quality comprises the impedance operator of electric power networks, attenuation characteristic and interference of noise, wherein the impedance operator of electric power networks and attenuation characteristic restrict the transmission range of signal, and the noise jamming of electric power networks decision signal transfer quality, by studying the surface, existing various power line carrier communication schemes are at communication distance at present, the communication success rate, aspect such as antijamming capability and receiving sensitivity all also exists some problems, and it also is not very good causing the result of use of electric line carrier communication technology in corresponding field.
The utility model content
The purpose of this utility model is to provide a kind of can strengthen the low-voltage powerline carrier communication module that antijamming capability, prolongation communication distance, raising communication success rate and reception are subjected to sensitivity.
This low-voltage powerline carrier communication module that the utility model provides, comprise power circuit, the carrier Control circuit, the carrier signal transtation mission circuit, carrier signal receiving circuit and carrier signal coupling circuit, described power circuit provides working power for this module, described carrier signal transtation mission circuit and carrier signal receiving circuit are connected between carrier Control circuit and the carrier signal coupling circuit, described carrier signal coupling circuit is connected with power line, described carrier Control circuit adopts carrier Control chip RISE3501, described carrier signal transtation mission circuit adopts multistage transistor amplifier, it is the second-order filter circuit of 132kHz that described carrier signal receiving circuit adopts centre frequency, and described carrier signal coupling circuit adopts 132KHz carrier signal impedance matching resonant coupling circuit.
It is the 5V power source conversion that base table provides module for power supply for the 3.3V power supply that described power circuit adopts power supply chip SP6203.
The utility model has the advantages that simple in structure, volume is little, cost is low, (module plug-in) easy to use, can finish the exchanges data between the electric terminal equipment in the power line communication network, possess communication repeating, initiatively report and intercept automatically function such as carrier wave node.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is multistage transistor amplifier figure of the present utility model.
Fig. 3 is the second-order filter circuit figure of 132kHz for centre frequency of the present utility model.
Fig. 4 is carrier Control chip RISE3501 of the present utility model and peripheral circuit diagram thereof.
Fig. 5 is 132KHz carrier signal impedance matching resonant coupling circuit figure of the present utility model.
Fig. 6 is serial communication circuit figure of the present utility model.
Fig. 7 is a power circuit diagram of the present utility model.
Embodiment
Because the transmission of high-frequency signal on low-voltage power line certainly exists decay, this decay will directly influence the communication distance of signal, the communication success rate, antijamming capability and reception are subjected to sensitivity, test shows, decay and the signal frequency of high-frequency signal on low-voltage power line has substantial connection, signal attenuation is more steady in 150 kHz, amplitude of variation is little, the above signal attenuation of 150 kHz changes obviously, signal attenuation can reach more than 20 dB in the 150-250 kHz, therefore, the signal frequency that the utility model is selected is 132kHz, frequency range is 6 kHz, at utmost reduced the transmission attenuation of high-frequency signal on power line, simultaneously under the situation that guarantees the 5400bps communication speed, adopt the very capable two-phase PSK of anti-interference noise (BPSK) modulation system, the carrier Control chip RISE3501 of AD sampling spread spectrum counting technology and embedded digital signal processing function has strengthened antijamming capability and data communication disposal ability greatly.
Fig. 1 is a theory diagram of the present utility model, comprise power circuit, serial communication circuit, the carrier Control circuit, the carrier signal transtation mission circuit, carrier signal receiving circuit and carrier signal coupling circuit, wherein the power circuit 5V power source conversion that adopts power supply chip SP6203 that base table is provided is the required 3.3V power supply of the utility model, serial communication circuit is finished the serial communication of the utility model and base table MCU, the one end is connected with the carrier Control circuit, its other end is connected with base table, carrier signal transtation mission circuit and carrier signal receiving circuit are connected between carrier Control circuit and the carrier signal coupling circuit, and the carrier signal coupling circuit is connected with power line.The carrier Control circuit adopts carrier Control chip RISE3501, it is used to finish Signal Processing, comprise modulation, ADC, DAC and function such as reset, the carrier signal transtation mission circuit adopts multistage transistor amplifier, it is used to finish the bpsk signal that the carrier Control circuit is sent and amplifies driving, bpsk signal after this amplification is coupled on the electrical network by the carrier signal coupling circuit again, it is the second-order filter circuit of 132kHz that the carrier signal receiving circuit adopts centre frequency, it is used to receive the bpsk signal of coming in from the power line coupling, and it is carried out filtering, this filtered signal sends the carrier Control circuit again to and handles, the carrier signal coupling circuit adopts 132KHz carrier signal impedance matching resonant coupling circuit, and it is used to realize the coupling of carrier signal between the utility model and the electrical network.
Fig. 2 is multistage transistor amplifier figure of the present utility model, and as shown in the figure, the carrier signal that the carrier Control circuit sends sends to the carrier signal coupling circuit after amplifying through this multistage transistor amplifier.
Fig. 3 is the second-order filter circuit figure of 132kHz for centre frequency of the present utility model, as shown in the figure, this centre frequency is that the second-order filter circuit of 132kHz is made up of inductance L 4, L5, capacitor C 30, C31, the 132kHz carrier signal that this second-order filter circuit reception carrier signal coupling circuit is come in from the electrical network coupling, the carrier Control chip RISE3501 that is transferred to then in the carrier Control circuit carries out data processing.
Fig. 4 is carrier Control chip RISE3501 of the present utility model and peripheral circuit diagram thereof, carrier Control chip RISE3501 and peripheral circuit thereof have been formed the carrier Control circuit, this circuit has D/A switch, data processing functions such as modulating/demodulating, it can also be finished base table with the chip that resets and reset to of the present utility model.
Fig. 5 is 132KHz carrier signal impedance matching resonant coupling circuit figure of the present utility model; as shown in the figure; capacitor C 39, C40, C41 and inductance L 6 constitute a resonant circuit; this resonant circuit realizes that A, B, C three-phase centre frequency are the signal frequency-selecting of 132kHz on the power line; the carrier signal that frequency-selecting is obtained is coupled to the utility model inside through isolating transformer BT1 then, and Transient Suppression Diode TVS1 shields to the circuit of back.
Fig. 6 is serial communication circuit figure of the present utility model, this figure is the interface definition (adopt contact pin form) between base table and the utility model, comprise base table to the transmitting-receiving between power supply of the present utility model, base table and the utility model, state, reporting events, be provided with and a series of data interaction such as reset.
Fig. 7 is a power circuit diagram of the present utility model, and as shown in the figure, it is the utility model power supply that the 5V power supply that is provided by base table converts the 3.3V power supply to through power supply chip SP6203.
Claims (2)
1. low-voltage powerline carrier communication module, comprise power circuit, the carrier Control circuit, the carrier signal transtation mission circuit, carrier signal receiving circuit and carrier signal coupling circuit, described power circuit provides working power for this module, described carrier signal transtation mission circuit and carrier signal receiving circuit are connected between carrier Control circuit and the carrier signal coupling circuit, described carrier signal coupling circuit is connected with power line, it is characterized in that described carrier Control circuit adopts carrier Control chip RISE3501, described carrier signal transtation mission circuit adopts multistage transistor amplifier, it is the second-order filter circuit of 132kHz that described carrier signal receiving circuit adopts centre frequency, and described carrier signal coupling circuit adopts 132KHz carrier signal impedance matching resonant coupling circuit.
2. low-voltage powerline carrier communication module according to claim 1 is characterized in that it is module for power supply for the 3.3V power supply that described power circuit adopts power supply chip SP6203 to the 5V power source conversion that base table provides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206641779U CN201878140U (en) | 2010-12-17 | 2010-12-17 | Low-voltage power line carrier communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206641779U CN201878140U (en) | 2010-12-17 | 2010-12-17 | Low-voltage power line carrier communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201878140U true CN201878140U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206641779U Expired - Lifetime CN201878140U (en) | 2010-12-17 | 2010-12-17 | Low-voltage power line carrier communication module |
Country Status (1)
| Country | Link |
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| CN (1) | CN201878140U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510301A (en) * | 2011-11-02 | 2012-06-20 | 华北电网有限公司计量中心 | Bidirectional signal attenuation circuit of low-voltage power line carrier |
| CN103345835A (en) * | 2013-06-14 | 2013-10-09 | 江苏瀚远科技股份有限公司 | Physical heritage monitoring system |
| CN103488129A (en) * | 2012-06-12 | 2014-01-01 | 杨晨 | Carrier wave programmable control system |
| CN104142656A (en) * | 2013-05-08 | 2014-11-12 | 杨晨 | Agricultural automated control system |
| CN104467920A (en) * | 2014-12-29 | 2015-03-25 | 常熟市九洲电器设备有限公司 | Power line carrier communication device |
| CN105306101A (en) * | 2015-08-07 | 2016-02-03 | 厦门华方软件科技有限公司 | Middle-long distance power line carrier communication system |
-
2010
- 2010-12-17 CN CN2010206641779U patent/CN201878140U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510301A (en) * | 2011-11-02 | 2012-06-20 | 华北电网有限公司计量中心 | Bidirectional signal attenuation circuit of low-voltage power line carrier |
| CN102510301B (en) * | 2011-11-02 | 2015-01-21 | 冀北电力有限公司计量中心 | Bidirectional signal attenuation circuit of low-voltage power line carrier |
| CN103488129A (en) * | 2012-06-12 | 2014-01-01 | 杨晨 | Carrier wave programmable control system |
| CN104142656A (en) * | 2013-05-08 | 2014-11-12 | 杨晨 | Agricultural automated control system |
| CN103345835A (en) * | 2013-06-14 | 2013-10-09 | 江苏瀚远科技股份有限公司 | Physical heritage monitoring system |
| CN104467920A (en) * | 2014-12-29 | 2015-03-25 | 常熟市九洲电器设备有限公司 | Power line carrier communication device |
| CN105306101A (en) * | 2015-08-07 | 2016-02-03 | 厦门华方软件科技有限公司 | Middle-long distance power line carrier communication system |
| CN105306101B (en) * | 2015-08-07 | 2018-03-30 | 厦门华方软件科技有限公司 | A kind of power carrier communication system of medium and long distance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee after: WILLFAR INFORMATION TECHNOLOGY Co.,Ltd. Address before: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee before: HUNAN WEISHENG INFORMATION TECHNOLOGY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee after: HUNAN WEISHENG INFORMATION TECHNOLOGY CO.,LTD. Address before: 410205 No. 468 Tongzipo West Road, Yuelu District, Changsha City, Hunan Province Patentee before: CHANGSHA WASION INFORMATION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |