CN203590219U - Power line carrier communication system - Google Patents
Power line carrier communication system Download PDFInfo
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- CN203590219U CN203590219U CN201320657986.0U CN201320657986U CN203590219U CN 203590219 U CN203590219 U CN 203590219U CN 201320657986 U CN201320657986 U CN 201320657986U CN 203590219 U CN203590219 U CN 203590219U
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- circuit
- power line
- line carrier
- power
- chip microcomputer
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- 238000004891 communication Methods 0.000 title claims abstract description 28
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 16
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000001228 spectrum Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a power line carrier communication system comprising an induced circuit, a signal processing circuit, and a single chip microcomputer. The signal processing circuit comprises a coupling circuit and a power line carrier processing chip. The output signal of the coupling circuit is inputted into the power line carrier processing chip successively via a band-pass filtering circuit and a pre-stage amplifying circuit. The output signal of the power line carrier processing chip is inputted into the coupling circuit via a power amplifying circuit. A power line is connected with the coupling circuit via the induced circuit. A host computer is connected with the power line carrier processing chip successively via a RS485 communication interface circuit and the single chip microcomputer. The model of the power line carrier processing chip is SC1128 and the model of the single chip microcomputer is AT89C52. Using a low-voltage power line as a transmission medium, the power line carrier communication system achieves data communication with the spread spectrum communication power line carrier processing chip SC1128 and the single chip microcomputer AT89C52, and is reasonable in design, simple in connection structure, low in system power consumption, and high in operating efficiency.
Description
Technical field
The utility model relates to carrier communication field, specifically a kind of power-line carrier communication system.
Background technology
Power network is the universal physical network of user, and it is that any network is all incomparable that its user uses group, and the existing main application of power network is electric energy transmitting.How to utilize electric power networks resource potential, do not affecting on the basis of electric energy transmitting, realize arrowband or broadband connections, make it to become relay letter, phone, radio communication, satellite communication another communication network afterwards.Power line carrier communication is to utilize power circuit as the carrier communication of transmission channel, is the distinctive a kind of communication mode of electric power system.
Utility model content
The purpose of this utility model is to provide a kind of power-line carrier communication system, utilizes power circuit to realize carrier communication as transmission channel.
It is such realizing the technical solution of the utility model: a kind of power-line carrier communication system, comprises sensor circuit, signal processing circuit and single-chip microcomputer; Described signal processing circuit comprises coupling circuit and power line carrier process chip, the output signal of coupling circuit is input to power line carrier process chip by bandwidth-limited circuit and preamplifying circuit successively, and the output signal of power line carrier process chip is input to coupling circuit by power amplification circuit; Power line is connected to coupling circuit by sensor circuit; Host computer is connected to power line carrier process chip by RS485 communication interface circuit, single-chip microcomputer successively.
Wherein, power line carrier process chip model is SC1128, and single-chip microcomputer model is AT89C52.
Advantage of the present utility model and beneficial effect are:
1, utilize low-voltage power line as transmission medium, the data communication of having used spread spectrum communication power line carrier chip SC1128 and AT89C52 chip microcontroller.
2, reasonable in design, syndeton is simple, and system energy consumption is low, operating efficiency is high.
Accompanying drawing explanation
Fig. 1 is system construction drawing of the present utility model.
Embodiment
As shown in Figure 1, a kind of power-line carrier communication system, comprises sensor circuit, signal processing circuit and single-chip microcomputer; Described signal processing circuit comprises coupling circuit and power line carrier process chip, the output signal of coupling circuit is input to power line carrier process chip by bandwidth-limited circuit and preamplifying circuit successively, and the output signal of power line carrier process chip is input to coupling circuit by power amplification circuit; Power line is connected to coupling circuit by sensor circuit; Host computer is connected to power line carrier process chip by RS485 communication interface circuit, single-chip microcomputer successively.Wherein, power line carrier process chip model is SC1128, and single-chip microcomputer model is AT89C52.
The operation principle of technique scheme is as follows: the carrier signal that sensor circuit senses from power line is carried out advanced treating by single-chip microcomputer again after signal processing circuit is processed, and the data after processing are transferred on host computer by RS485 communication interface circuit.The downstream signal that host computer sends sends in signal processing circuit and by sensor circuit, is input to power line again after processing through single-chip microcomputer.In signal processing circuit, the carrier signal being sensed from electric power by sensor circuit is input to band pass filter via coupling circuit, filter clutter, again signal is input to previous amplifier circuit, pre-amplifier carries out undistorted amplification by the signal of reception, then input power line carrier chip is processed; The signal of the downstream signal that host computer sends after power line carrier chip is processed amplifies by power amplifier circuit, then is transported in power line by sensor circuit through coupling circuit.
Claims (3)
1. a power-line carrier communication system, is characterized in that, comprises sensor circuit, signal processing circuit and single-chip microcomputer; Described signal processing circuit comprises coupling circuit and power line carrier process chip, the output signal of coupling circuit is input to power line carrier process chip by bandwidth-limited circuit and preamplifying circuit successively, and the output signal of power line carrier process chip is input to coupling circuit by power amplification circuit; Power line is connected to coupling circuit by sensor circuit; Host computer is connected to power line carrier process chip by RS485 communication interface circuit, single-chip microcomputer successively.
2. power-line carrier communication system according to claim 1, is characterized in that, described power line carrier process chip model is SC1128.
3. power-line carrier communication system according to claim 1, is characterized in that, described single-chip microcomputer model is AT89C52.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657986.0U CN203590219U (en) | 2013-10-23 | 2013-10-23 | Power line carrier communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657986.0U CN203590219U (en) | 2013-10-23 | 2013-10-23 | Power line carrier communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590219U true CN203590219U (en) | 2014-05-07 |
Family
ID=50588064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320657986.0U Expired - Fee Related CN203590219U (en) | 2013-10-23 | 2013-10-23 | Power line carrier communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203590219U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367100A (en) * | 2020-09-30 | 2021-02-12 | 北京机电工程研究所 | Power line carrier communication control circuit based on Ethernet and serial interface |
| CN112910507A (en) * | 2021-02-26 | 2021-06-04 | 北京中宸微电子有限公司 | Power line carrier communication equipment and communication system |
-
2013
- 2013-10-23 CN CN201320657986.0U patent/CN203590219U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367100A (en) * | 2020-09-30 | 2021-02-12 | 北京机电工程研究所 | Power line carrier communication control circuit based on Ethernet and serial interface |
| CN112367100B (en) * | 2020-09-30 | 2022-01-04 | 北京机电工程研究所 | Power line carrier communication control circuit based on Ethernet and serial interface |
| CN112910507A (en) * | 2021-02-26 | 2021-06-04 | 北京中宸微电子有限公司 | Power line carrier communication equipment and communication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20181023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |