CN110380757B - Self-adaptive power carrier communication device - Google Patents
Self-adaptive power carrier communication device Download PDFInfo
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- CN110380757B CN110380757B CN201910446305.8A CN201910446305A CN110380757B CN 110380757 B CN110380757 B CN 110380757B CN 201910446305 A CN201910446305 A CN 201910446305A CN 110380757 B CN110380757 B CN 110380757B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- Computer Networks & Wireless Communication (AREA)
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- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a self-adaptive power carrier communication device, which comprises a power carrier transmitting module, a power carrier receiving module and an MCU (microprogrammed control unit) processor, wherein one end of the power carrier receiving module is electrically connected with a power line, and the other end of the power carrier receiving module is electrically connected with the MCU processor and used for receiving a carrier signal of the power line and sending the carrier signal to the MCU processor with certain receiving gain; one end of the power carrier transmitting module is electrically connected with the power line, and the other end of the power carrier transmitting module is electrically connected with the MCU processor and used for extracting required data information from the carrier signal acquired by the MCU processor and transmitting the data information to the power line at a certain transmitting power; the MCU processor detects the amplitude of the carrier signal, controls the receiving gain and the transmitting power according to the amplitude of the carrier signal, and realizes the self-adaptive adjustment of power carrier communication. The invention can realize the self-adaptive adjustment of power line carrier communication and meet the requirement of long-distance stable communication of a system as long as 10 km.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an adaptive power carrier communication apparatus.
Background
In recent years, with the continuous increase of tunnel construction scale and the popularization of smart grid construction, more and more places begin to construct underground utility tunnels and power tunnels so as to fully utilize underground space. The comprehensive pipe gallery and the electric power tunnel solve the phenomena of ' pulling a link, ' spider web ' and the like in a city. Due to the fact that the pipe gallery and the electric power tunnel are buried more than 2.5 meters deep, the distance is long, the tunnel is narrow in sealing, and the monitoring system is difficult to power and wire due to the fact that the tunnel is in complex environments such as turning, fluctuating, branching and remote places. In this regard, the communication mode of the utility tunnel requires a power carrier communication system that can adapt to a particular scenario.
Disclosure of Invention
The invention aims to provide an adaptive power carrier communication device, which can realize adaptive adjustment of power carrier communication and meet the requirement of long-distance stable communication of a system as long as 10 km.
In order to solve the above problems, the present invention provides a self-adaptive power carrier communication device, which includes a power carrier transmitting module, a power carrier receiving module and an MCU processor, wherein one end of the power carrier receiving module is electrically connected to a power line, and the other end of the power carrier receiving module is electrically connected to the MCU processor, and is configured to receive a carrier signal of the power line and send the carrier signal to the MCU processor with a certain receiving gain; one end of the power carrier transmitting module is electrically connected with the power line, and the other end of the power carrier transmitting module is electrically connected with the MCU processor and is used for extracting required data information from the carrier signal acquired by the MCU processor and transmitting the data information to the power line at a certain transmitting power; and the MCU processor detects the amplitude of the carrier signal, controls the receiving gain and the transmitting power according to the amplitude of the carrier signal and realizes the self-adaptive adjustment of power carrier communication.
Preferably, the method for controlling the receiving gain and the transmitting power by the MCU processor according to the amplitude of the carrier signal specifically comprises: when the MCU processor detects that the amplitude of the carrier signal is smaller than a certain threshold value, the receiving gain and the transmitting power are increased; and when the MCU processor detects that the amplitude of the carrier signal is greater than a certain threshold value, reducing the receiving gain and the transmitting power.
Preferably, the threshold is 18V.
Preferably, the MCU processor is a low-power consumption single chip microcomputer.
Preferably, the power carrier transmitting module is connected with the MCU processor through an RS232 serial port.
Preferably, the power carrier receiving module is connected with the MCU processor through an RS232 serial port.
Compared with the prior art, the invention has the following technical effects:
1. the self-adaptive power carrier communication device provided by the embodiment of the invention can realize self-adaptive adjustment of power carrier communication and meet the requirement of long-distance stable communication of a system as long as 10 km.
2. The self-adaptive power carrier communication device provided by the embodiment of the invention has the advantages of low power consumption and low cost, and is suitable for being applied to the field of tunnel monitoring and urban pipe gallery monitoring which cannot supply power and can not communicate remotely on site.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. In the drawings:
fig. 1 is a schematic structural diagram of an adaptive power carrier communication apparatus according to an embodiment of the present invention.
Detailed Description
The present invention provides an adaptive power carrier communication apparatus, which will be described in detail with reference to the accompanying drawings, wherein the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments, and those skilled in the art can modify and decorate the embodiments without changing the spirit and content of the present invention.
Referring to fig. 1, an adaptive power carrier communication apparatus includes a power carrier transmitting module 1, a power carrier receiving module 2, and an MCU processor 3, wherein,
one end of the power carrier receiving module 2 is electrically connected with a power line 4, and the other end of the power carrier receiving module is electrically connected with the MCU processor 3, and is used for receiving a carrier signal of the power line and sending the carrier signal to the MCU processor 3 with a certain receiving gain; specifically, the power carrier receiving module 2 extracts a carrier signal from the power line 4, converts the carrier signal into a TTL level, and inputs the TTL level to the MCU processor 3;
one end of the power carrier transmitting module 1 is electrically connected with the power line 4, and the other end of the power carrier transmitting module is electrically connected with the MCU processor 3, and is used for extracting required data information from the carrier signal acquired by the MCU processor 3 and transmitting the data information to the power line 4 with certain transmitting power;
the MCU processor 3 detects the amplitude of the carrier signal, controls the receiving gain and the transmitting power according to the amplitude of the carrier signal, and realizes the self-adaptive adjustment of power carrier communication.
The required data information extracted by the power carrier transmitting module 1 from the carrier signal acquired by the MCU processor 3 may be temperature information, remote indication information, power supply management information, etc.
In this embodiment, the method for controlling the receiving gain and the transmitting power by the MCU processor 3 according to the amplitude of the carrier signal specifically includes:
when the MCU processor 3 detects that the amplitude of the carrier signal is smaller than a certain threshold value, the receiving gain and the transmitting power are increased; and when the MCU processor detects that the amplitude of the carrier signal is greater than a certain threshold value, reducing the receiving gain and the transmitting power.
In this embodiment, the MCU processor 3 is a low power consumption single chip microcomputer, and includes an I/O port, an ADC (analog-to-digital conversion circuit) and a DAC (digital-to-analog converter), and detects an input power carrier signal and a power supply voltage, and controls a power carrier transmission current power and a carrier reception gain, so that the amplitude of a carrier communication signal meets the communication requirement of a power carrier system. Through the working mode, the communication distance of the power carrier can be greatly increased, and the communication stability is improved.
Specifically, the threshold is 18V. It will be appreciated that other suitable thresholds may be set depending on the actual application scenario and requirements.
As a feasible embodiment, the power carrier transmitting module 1 is connected with the MCU processor 3 through an RS232 serial port, and the power carrier receiving module 2 is connected with the MCU processor 3 through an RS232 serial port.
Of course, the communication signal of the input power carrier is not limited to RS232 serial communication data.
The self-adaptive power carrier communication device of the embodiment can realize the self-adaptive adjustment of power carrier communication, and meets the requirement of long-distance stable communication of a system as long as 10 km.
The disclosure above is only one specific embodiment of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (5)
1. An adaptive power carrier communication device is characterized by comprising a power carrier transmitting module, a power carrier receiving module and an MCU processor, wherein,
one end of the power carrier receiving module is electrically connected with a power line, and the other end of the power carrier receiving module is electrically connected with the MCU processor and is used for receiving a carrier signal of the power line and sending the carrier signal to the MCU processor with certain receiving gain;
one end of the power carrier transmitting module is electrically connected with the power line, and the other end of the power carrier transmitting module is electrically connected with the MCU processor and is used for extracting required data information from the carrier signal acquired by the MCU processor and transmitting the data information to the power line at a certain transmitting power;
the MCU processor detects the amplitude of the carrier signal, controls the receiving gain and the transmitting power according to the amplitude of the carrier signal and realizes the self-adaptive adjustment of power carrier communication; when the MCU processor detects that the amplitude of the carrier signal is smaller than a certain threshold value, the receiving gain and the transmitting power are increased; and when the MCU processor detects that the amplitude of the carrier signal is greater than a certain threshold value, reducing the receiving gain and the transmitting power.
2. The adaptive power carrier communication device according to claim 1, wherein the threshold is 18V.
3. The adaptive power carrier communication device of claim 1, wherein the MCU processor is a low power consumption single chip.
4. The adaptive power carrier communication device according to claim 1, wherein the power carrier transmitting module is connected to the MCU processor via an RS232 serial port.
5. The adaptive power carrier communication device according to claim 1, wherein the power carrier receiving module is connected to the MCU processor via an RS232 serial port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910446305.8A CN110380757B (en) | 2019-05-27 | 2019-05-27 | Self-adaptive power carrier communication device |
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| CN201910446305.8A CN110380757B (en) | 2019-05-27 | 2019-05-27 | Self-adaptive power carrier communication device |
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| CN110380757A CN110380757A (en) | 2019-10-25 |
| CN110380757B true CN110380757B (en) | 2021-12-21 |
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| CN112615645A (en) * | 2020-12-11 | 2021-04-06 | 普联国际有限公司 | Communication signal output control method and device and output equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103220018A (en) * | 2013-03-19 | 2013-07-24 | 北京中宸泓昌科技有限公司 | Control method of automatic gain in power line carrier communication network |
| CN103607218A (en) * | 2013-10-28 | 2014-02-26 | 国家电网公司 | Cross-frequency-band power-line carrier communication system and communication method thereof |
| WO2014207296A1 (en) * | 2013-06-25 | 2014-12-31 | Ell-I Open Source Co-Operative | A method and device for transmitting' electrical power and data |
| CN106549690A (en) * | 2016-11-05 | 2017-03-29 | 北京晓程科技股份有限公司 | Power carrier communication system auto gain control method and device |
| CN109450472A (en) * | 2018-12-14 | 2019-03-08 | 安徽德诺科技股份公司 | A kind of switch actuator and signal receiving circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160860A (en) * | 2015-09-18 | 2015-12-16 | 国网冀北电力有限公司信息通信分公司 | Power-device remote monitoring system based on power line carrier technology |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220018A (en) * | 2013-03-19 | 2013-07-24 | 北京中宸泓昌科技有限公司 | Control method of automatic gain in power line carrier communication network |
| WO2014207296A1 (en) * | 2013-06-25 | 2014-12-31 | Ell-I Open Source Co-Operative | A method and device for transmitting' electrical power and data |
| CN103607218A (en) * | 2013-10-28 | 2014-02-26 | 国家电网公司 | Cross-frequency-band power-line carrier communication system and communication method thereof |
| CN106549690A (en) * | 2016-11-05 | 2017-03-29 | 北京晓程科技股份有限公司 | Power carrier communication system auto gain control method and device |
| CN109450472A (en) * | 2018-12-14 | 2019-03-08 | 安徽德诺科技股份公司 | A kind of switch actuator and signal receiving circuit |
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