CN109474673A - It is a kind of to hinder the power distribution network of communication to monitor communication system with underground barrier-free - Google Patents
It is a kind of to hinder the power distribution network of communication to monitor communication system with underground barrier-free Download PDFInfo
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- CN109474673A CN109474673A CN201811254693.1A CN201811254693A CN109474673A CN 109474673 A CN109474673 A CN 109474673A CN 201811254693 A CN201811254693 A CN 201811254693A CN 109474673 A CN109474673 A CN 109474673A
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- power distribution
- distribution network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The power distribution network of communication is hindered to monitor communication system, including power network monitoring module, carrier communication module, concentrator, separated wireless communication part and cloud component with underground barrier-free the invention discloses a kind of；The power network monitoring module and carrier communication module communication connection, carrier communication module and concentrator communication connection；Concentrator passes through separated wireless communication part and cloud component communication connection, the invention reside in use separated wireless communication part, turn the conversion that RJ45 module realizes communication interface by serial ports, to the whole connecting communication that twisted pair may be implemented, the transceiver module of GPRS communication module in concentrator can be extended to the good ground location of signal in this way, it is received to obtain effective data communication, and few using Double-strand transmission loss of signal, overall technology requires lower.
Description
Technical field
The present invention relates to electrical network fields, hinder the power distribution network of communication to monitor communication system with underground barrier-free more particularly, to a kind of
System.
Background technique
Power carrier is the distinctive communication mode of electric system, and power carrier communication refers to using existing power line, is passed through
Analog or digital signal is carried out the technology of high-speed transfer by carrier system.Maximum feature be do not need to set up network again, as long as
Live wire just can be carried out data transmitting.
At present for underground lay power grid for, due to wireless signal communication barrier, be integrally difficult to realize signal compared with
Good transmitting-receiving, while being laid according to a large amount of optical-fibre communications, whole high, the power grid of completely not applicable large area and multiple of faking
The electrical network facilities of miscellaneous region.
Summary of the invention
The present invention is to overcome above situation insufficient, it is desirable to provide a kind of technical solution that can solve the above problem.
It is a kind of to hinder the power distribution network of communication to monitor communication system, including power network monitoring module, carrier communication with underground barrier-free
Module, concentrator, separated wireless communication part and cloud component；The power network monitoring module and carrier communication module communicate
Connection, carrier communication module and concentrator communication connection；Concentrator is communicated by separated wireless communication part and cloud component
Connection.
As a further solution of the present invention: the power network monitoring module include current monitoring module, voltage monitoring module,
Transmission frequency monitoring modular；
Wherein current monitoring module is used to monitor the current values size for obtaining each position of power distribution network；
Voltage monitoring module is used to monitor the voltage value size for obtaining each position of power distribution network；
Transmission frequency monitoring modular is used to monitor the transmission frequency magnitude numerical value for obtaining each position of power distribution network.
As a further solution of the present invention: carrier communication module will using the data of electrical grid transmission power network monitoring module
Data pass to the concentrator of ground.
As a further solution of the present invention: the separated wireless communication part includes GPRS communication module, and GPRS is logical
It interrogates module and is equipped with multiple communication interfaces for receiving and transmitting signal, communication interface uses serial ports structure；The communication interface connects
It connects serial ports and turns RJ45 module, serial ports turns RJ45 module and realizes communication by twisted pair line connection signal transmitting and receiving module, turned by serial ports
RJ45 module realizes the conversion of communication interface, thus the whole connecting communication that twisted pair may be implemented, it in this way can be by concentrator
The transceiver module of middle GPRS communication module extends to the good ground location of signal, receives to obtain effective data communication,
And it is few using Double-strand transmission loss of signal, overall technology requires lower.
As a further solution of the present invention: the signal transmitting and receiving module includes signal transmitting and receiving antenna, RJ45 transmission module
With SIM card card reading module, SIM card card reading module and signal transmitting and receiving antenna are all connected with RJ45 transmission module, SIM card card reading module
In be built-in with SIM card.
As a further solution of the present invention: cloud component includes Cloud Server, data display large-size screen monitors and operates host,
Wherein Cloud Server is connect by Ethernet with signal transmitting and receiving module communication, in the data that signal transmitting and receiving module obtains concentrator
Cloud Server is reached, data are handled and stored using Cloud Server, and carries out judgement processing by the way that algorithm is corresponding.
As a further solution of the present invention: the Cloud Server is connected with multiple handheld terminals by ethernet communication, benefit
It is accessed with hand-held end equipment to Cloud Server, while issuing control instructions order to handheld terminal using Cloud Server, thus
The operation of employee under line is facilitated to overhaul.
As a further solution of the present invention: logical process is equipped between the power network monitoring module and carrier communication module
Device, wherein logic processor is constituted using the microprocessor of ARM framework, signal incoming end and the output end difference of logic processor
Connect power network monitoring module and carrier communication module.
As a further solution of the present invention: the signal output end connection serial ports of the concentrator turns RJ45 module, utilizes
Twisted pair realizes directly transmitting for concentrator data, whole to use bi-mode control structure.
As a further solution of the present invention: the carrier communication module also communication connection has locating module, locating module
For positioning the present position of power network monitoring module.
Beneficial effects of the present invention: the invention reside in use separated wireless communication part, separated wireless communication group
Part includes GPRS communication module, and GPRS communication module is equipped with multiple communication interfaces for receiving and transmitting signal, and communication interface uses
Serial ports structure；The communication interface is all connected with serial ports and turns RJ45 module, and serial ports turns RJ45 module and received by twisted pair line connection signal
It sends out module and realizes communication, the conversion that RJ45 module realizes communication interface is turned by serial ports, so that whole may be implemented twisted pair
The transceiver module of GPRS communication module in concentrator can be extended to the good ground location of signal by connecting communication in this way, from
And obtain effective data communication and receive, and is few using Double-strand transmission loss of signal, overall technology requires lower.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is local composition block diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~2, it is a kind of to hinder the power distribution network of communication to monitor communication system with underground barrier-free in the embodiment of the present invention
System, including power network monitoring module, carrier communication module, concentrator, separated wireless communication part and cloud component；The electricity
Net monitoring modular and carrier communication module communication connection, carrier communication module and concentrator communication connection；Concentrator passes through separation
Formula wireless communication assembly and cloud component communication connection；
The power network monitoring module includes current monitoring module, voltage monitoring module, transmission frequency monitoring modular；
Wherein current monitoring module is used to monitor the current values size for obtaining each position of power distribution network；
Voltage monitoring module is used to monitor the voltage value size for obtaining each position of power distribution network；
Transmission frequency monitoring modular is used to monitor the transmission frequency magnitude numerical value for obtaining each position of power distribution network.
Carrier communication module passes data to the concentrator of ground using the data of electrical grid transmission power network monitoring module；
The separated wireless communication part includes GPRS communication module, and GPRS communication module is equipped with multiple for receiving and dispatching
The communication interface of signal, communication interface use serial ports structure；The communication interface is all connected with serial ports and turns RJ45 module, and serial ports turns
RJ45 module realizes communication by twisted pair line connection signal transmitting and receiving module, turns RJ45 module by serial ports and realizes communication interface
Conversion, thus the whole connecting communication that twisted pair may be implemented, it in this way can be by the transmitting-receiving mould of GPRS communication module in concentrator
Block extends to the good ground location of signal, receives to obtain effective data communication, and use Double-strand transmission signal
Loss is few, and overall technology requires lower；
The signal transmitting and receiving module includes signal transmitting and receiving antenna, RJ45 transmission module and SIM card card reading module, and SIM card is read
Card module and signal transmitting and receiving antenna are all connected with RJ45 transmission module, are built-in with SIM card in SIM card card reading module；
Cloud component includes Cloud Server, data show large-size screen monitors and operate host, and wherein Cloud Server passes through Ethernet
It is connect with signal transmitting and receiving module communication, the data that concentrator obtains are uploaded to Cloud Server by signal transmitting and receiving module, are taken using cloud
Business device is handled and is stored to data, and carries out judgement processing by the way that algorithm is corresponding.
The Cloud Server is connected with multiple handheld terminals by ethernet communication, using hand-held end equipment to Cloud Server into
Row access, while control instructions order is issued to handheld terminal using Cloud Server, so that the operation of employee under line be facilitated to overhaul.
Logic processor is equipped between the power network monitoring module and carrier communication module, wherein logic processor uses
The microprocessor of ARM framework is constituted, and the signal incoming end and output end of logic processor are separately connected power network monitoring module and load
Wave communication module；
The signal output end connection serial ports of the concentrator turns RJ45 module, realizes the straight of concentrator data using twisted pair
It receives and sends, it is whole to use bi-mode control structure；
The carrier communication module also communication connection has locating module, and locating module is used to position the institute of power network monitoring module
Locate position.
The working principle of the invention is: this programme is to use separated wireless communication part, separated wireless communication
Component includes GPRS communication module, and GPRS communication module is equipped with multiple communication interfaces for receiving and transmitting signal, and communication interface is adopted
With serial ports structure；The communication interface is all connected with serial ports and turns RJ45 module, and serial ports turns RJ45 module and passes through twisted pair line connection signal
Transceiver module realizes communication, turns the conversion that RJ45 module realizes communication interface by serial ports, so that whole may be implemented twisted pair
Connecting communication, the transceiver module of GPRS communication module in concentrator can be extended to the good ground location of signal in this way,
It is received to obtain effective data communication, and few using Double-strand transmission loss of signal, overall technology requires lower.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (9)
1. it is a kind of with underground barrier-free hinder communication power distribution network monitor communication system, which is characterized in that including power network monitoring module,
Carrier communication module, concentrator, separated wireless communication part and cloud component；The power network monitoring module and carrier communication
Module communication connection, carrier communication module and concentrator communication connection；Concentrator passes through separated wireless communication part and cloud
Component communication connection.
As a further solution of the present invention: the power network monitoring module includes current monitoring module, voltage monitoring module, transmission of electricity
Frequency monitoring module；
Wherein current monitoring module is used to monitor the current values size for obtaining each position of power distribution network；
Voltage monitoring module is used to monitor the voltage value size for obtaining each position of power distribution network；
Transmission frequency monitoring modular is used to monitor the transmission frequency magnitude numerical value for obtaining each position of power distribution network.
2. according to claim 1 hinder the power distribution network of communication to monitor communication system with underground barrier-free, which is characterized in that carry
Wave communication module passes data to the concentrator of ground using the data of electrical grid transmission power network monitoring module.
3. according to claim 1 hinder the power distribution network of communication to monitor communication system with underground barrier-free, which is characterized in that institute
Stating separated wireless communication part includes GPRS communication module, and GPRS communication module is equipped with multiple communications for receiving and transmitting signal
Interface, communication interface use serial ports structure；The communication interface is all connected with serial ports and turns RJ45 module, and serial ports turns RJ45 module and passes through
Twisted pair line connection signal transmitting and receiving module realizes communication.
4. according to claim 1 hinder the power distribution network of communication to monitor communication system with underground barrier-free, which is characterized in that institute
Stating signal transmitting and receiving module includes signal transmitting and receiving antenna, RJ45 transmission module and SIM card card reading module, SIM card card reading module and letter
Number dual-mode antenna is all connected with RJ45 transmission module, is built-in with SIM card in SIM card card reading module.
5. according to claim 1 hinder the power distribution network of communication to monitor communication system with underground barrier-free, which is characterized in that cloud
End component includes Cloud Server, data show large-size screen monitors and operate host, and wherein Cloud Server passes through Ethernet and signal transmitting and receiving
The data that concentrator obtains are uploaded to Cloud Server by module communication connection, signal transmitting and receiving module.
6. according to claim 1 hinder the power distribution network of communication to monitor communication system with underground barrier-free, which is characterized in that institute
It states Cloud Server and multiple handheld terminals is connected with by ethernet communication.
7. according to claim 1 hinder the power distribution network of communication to monitor communication system with underground barrier-free, which is characterized in that institute
It states and is equipped with logic processor between power network monitoring module and carrier communication module, wherein logic processor is using the micro- of ARM framework
Processor is constituted, and the signal incoming end and output end of logic processor are separately connected power network monitoring module and carrier communication module.
8. according to claim 1 hinder the power distribution network of communication to monitor communication system with underground barrier-free, which is characterized in that institute
The signal output end connection serial ports for stating concentrator turns RJ45 module.
9. according to claim 1 hinder the power distribution network of communication to monitor communication system with underground barrier-free, which is characterized in that institute
Stating carrier communication module also communication connection has locating module, and locating module is used to position the present position of power network monitoring module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811254693.1A CN109474673A (en) | 2018-10-26 | 2018-10-26 | It is a kind of to hinder the power distribution network of communication to monitor communication system with underground barrier-free |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811254693.1A CN109474673A (en) | 2018-10-26 | 2018-10-26 | It is a kind of to hinder the power distribution network of communication to monitor communication system with underground barrier-free |
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| CN109474673A true CN109474673A (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811254693.1A Pending CN109474673A (en) | 2018-10-26 | 2018-10-26 | It is a kind of to hinder the power distribution network of communication to monitor communication system with underground barrier-free |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971300A (en) * | 2019-12-28 | 2020-04-07 | 云力物联网科技(深圳)有限公司 | Distributed cross-protocol intelligent gateway access server |
| CN114071523A (en) * | 2021-10-14 | 2022-02-18 | 深圳市有方科技股份有限公司 | Communication terminal and communication method based on double wireless communication modules |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060271206A1 (en) * | 2005-05-31 | 2006-11-30 | Luca Marzaro | Integrated system for the running and control of machines and equipment, in particular for the treatment of foodstuff |
| CN102542761A (en) * | 2011-12-21 | 2012-07-04 | 上海市电力公司 | Load monitor data radio-frequency transmission method |
| CN202404149U (en) * | 2012-01-12 | 2012-08-29 | 中国海洋石油总公司 | Monitoring device for offshore platform electric power system |
| CN204241616U (en) * | 2014-10-28 | 2015-04-01 | 国网辽宁省电力有限公司朝阳供电公司 | Based on the smart power grid fault monitoring system of Zigbee-technology |
| CN204496218U (en) * | 2015-03-04 | 2015-07-22 | 九州方圆实业控股(集团)有限公司 | A kind of concentrator for underground pipeline monitoring |
| CN104852983A (en) * | 2015-05-19 | 2015-08-19 | 中国科学技术大学苏州研究院 | Monitoring and early warning system based on water environment sensor network and method thereof |
| CN204706174U (en) * | 2015-06-26 | 2015-10-14 | 九州方圆实业控股(集团)有限公司 | A kind of underground pipeline monitoring system |
| CN105681416A (en) * | 2016-01-17 | 2016-06-15 | 济南大学 | Wireless communication system applicable for mine unmanned electric locomotive |
| CN105719471A (en) * | 2016-03-29 | 2016-06-29 | 国网上海市电力公司 | Concentrator GPRS (general packet radio service) signal extender |
| CN205725719U (en) * | 2016-06-15 | 2016-11-23 | 国网山东省电力公司平度市供电公司 | A kind of electric power system separate type GPRS communication module |
| CN106230111A (en) * | 2016-03-29 | 2016-12-14 | 国网上海市电力公司 | A kind of method utilizing power line carrier monitoring power information |
| CN106504500A (en) * | 2016-11-28 | 2017-03-15 | 国网安徽省电力公司阜阳供电公司 | Multifunctional remote wireless communication relay set based on remote radio communication relaying technique |
| CN107784819A (en) * | 2017-11-23 | 2018-03-09 | 苏州迪芬德物联网科技有限公司 | A kind of refrigerating box electric power carrier wave remote monitoring system |
-
2018
- 2018-10-26 CN CN201811254693.1A patent/CN109474673A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060271206A1 (en) * | 2005-05-31 | 2006-11-30 | Luca Marzaro | Integrated system for the running and control of machines and equipment, in particular for the treatment of foodstuff |
| CN102542761A (en) * | 2011-12-21 | 2012-07-04 | 上海市电力公司 | Load monitor data radio-frequency transmission method |
| CN202404149U (en) * | 2012-01-12 | 2012-08-29 | 中国海洋石油总公司 | Monitoring device for offshore platform electric power system |
| CN204241616U (en) * | 2014-10-28 | 2015-04-01 | 国网辽宁省电力有限公司朝阳供电公司 | Based on the smart power grid fault monitoring system of Zigbee-technology |
| CN204496218U (en) * | 2015-03-04 | 2015-07-22 | 九州方圆实业控股(集团)有限公司 | A kind of concentrator for underground pipeline monitoring |
| CN104852983A (en) * | 2015-05-19 | 2015-08-19 | 中国科学技术大学苏州研究院 | Monitoring and early warning system based on water environment sensor network and method thereof |
| CN204706174U (en) * | 2015-06-26 | 2015-10-14 | 九州方圆实业控股(集团)有限公司 | A kind of underground pipeline monitoring system |
| CN105681416A (en) * | 2016-01-17 | 2016-06-15 | 济南大学 | Wireless communication system applicable for mine unmanned electric locomotive |
| CN105719471A (en) * | 2016-03-29 | 2016-06-29 | 国网上海市电力公司 | Concentrator GPRS (general packet radio service) signal extender |
| CN106230111A (en) * | 2016-03-29 | 2016-12-14 | 国网上海市电力公司 | A kind of method utilizing power line carrier monitoring power information |
| CN205725719U (en) * | 2016-06-15 | 2016-11-23 | 国网山东省电力公司平度市供电公司 | A kind of electric power system separate type GPRS communication module |
| CN106504500A (en) * | 2016-11-28 | 2017-03-15 | 国网安徽省电力公司阜阳供电公司 | Multifunctional remote wireless communication relay set based on remote radio communication relaying technique |
| CN107784819A (en) * | 2017-11-23 | 2018-03-09 | 苏州迪芬德物联网科技有限公司 | A kind of refrigerating box electric power carrier wave remote monitoring system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971300A (en) * | 2019-12-28 | 2020-04-07 | 云力物联网科技(深圳)有限公司 | Distributed cross-protocol intelligent gateway access server |
| CN114071523A (en) * | 2021-10-14 | 2022-02-18 | 深圳市有方科技股份有限公司 | Communication terminal and communication method based on double wireless communication modules |
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