CN110086766A - Transformer substation communication power supply wireless protocol conversion apparatus - Google Patents
Transformer substation communication power supply wireless protocol conversion apparatus Download PDFInfo
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- CN110086766A CN110086766A CN201910166049.7A CN201910166049A CN110086766A CN 110086766 A CN110086766 A CN 110086766A CN 201910166049 A CN201910166049 A CN 201910166049A CN 110086766 A CN110086766 A CN 110086766A
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- module
- power supply
- central controller
- protocol conversion
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- 238000004891 communication Methods 0.000 title claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000013519 translation Methods 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 29
- 238000010168 coupling process Methods 0.000 claims description 29
- 238000005859 coupling reaction Methods 0.000 claims description 29
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H02J13/0075—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
It include: central controller module, power supply module, data acquisition module, wireless communication module, protocol conversion module and warning processing module the invention discloses a kind of transformer substation communication power supply wireless protocol conversion apparatus；Data acquisition module is connect with central controller module, and data acquisition module is for acquiring each operation data of communication power supply；Warning processing module is connect with central controller module, and warning processing module is alerted based on the alarm signal of central controller module；Protocol conversion module is connect with central controller module, and protocol conversion module is used to each operation data of the power supply of data collecting module collected carrying out protocol translation；Wireless communication module is connect with central controller module, and wireless communication module is used to each operation data of power supply after protocol translation being uploaded to server.The various interference that the present invention can be isolated improve efficiency, message transmission rate and the anti-interference of access upper layer network management, realize and control multiple alarm devices.
Description
Technical field
The present invention relates to a kind of transformer substation communication power supply wireless protocol conversion apparatus, belong to power electronics communication technology neck
Domain.
Background technique
Currently, power grid scale is constantly expanding with the fast development of electric power network, the pressure that power telecom network is born
It is more and more big.In order to guarantee the normal operation of power telecom network equipment, it is especially desirable to lead to belonging to each transformer substation communication computer room
Letter power-supply device, battery etc. are monitored, to reach the requirement to the real time monitoring of site environment.
Existing power communication network source there are problems that: 1, partial power is not detailed enough to the monitoring of single power module
Carefully, it is unsatisfactory for the requirement of " controllable "；2, partial power accidentally accuses serious, faults frequent, is unsatisfactory for the requirement " controlling "；The announcement of power supply
Alert not intelligence, cannot automatically adjust alarm conditions according to the actual operation；3, power supply type disunity, with complicated, efficiency
Lowly, safety zone risk is formed.
In recent years, it wirelessly communicates and the rapid development of low-power-consumption embedded technology, is pregnant with wireless sensor network, and with
The characteristics of its low-power consumption, low cost, distribution and self-organizing, brings a change of information Perception.But existing power supply letter
The acquisition terminal of breath is generally used proprietary protocol when collected data are uploaded to Upper NM Station system, causes access system
The time of system and cost waste.
Summary of the invention
The purpose of the present invention is to provide a kind of transformer substation communication power supply wireless protocol conversion apparatus, solves accidentally announcement rate
Height, upper datagram protocol increase the technological deficiency of the cost of access system.
A kind of transformer substation communication power supply wireless protocol conversion apparatus, comprising: central controller module, power supply module, data
Acquisition module, wireless communication module, protocol conversion module and warning processing module；The data acquisition module and the center
Controller module connection, data acquisition module is for acquiring each operation data of communication power supply；The power supply module and the center
Controller module connection, power supply module are used to power to central controller module；The warning processing module and the center are controlled
Device module connection processed, warning processing module are alerted based on the alarm signal of central controller module；The protocol conversion mould
Block is connect with the central controller module, and protocol conversion module is used for each operation data of the power supply of data collecting module collected
Carry out protocol translation；The wireless communication module is connect with the central controller module, and wireless communication module is used for agreement
Each operation data of power supply after conversion is uploaded to server.
Further, the central controller module includes chip STM32F103RD and matches with chip STM32F103RD
The peripheral circuit of conjunction.
Further, the data acquisition module includes the outer of several optocoupler PC817A and several optocoupler PC817A cooperation
Enclose circuit, several operational amplifier 74LS158 and the peripheral circuit with operational amplifier 74LS158 cooperation；Signal incoming end
The input terminal of optocoupler PC817A, the input terminal of the output end access operational amplifier 74LS158 of optocoupler PC817A are accessed, operation is put
The input terminal of the output end access central controller module of big device 74LS158.
Further, the warning processing module includes that several pieces chips MC74HC273 and chip MC74HC273 cooperate
Peripheral circuit, the peripheral circuit of several light coupling relay TLP175A and light coupling relay TLP175A, several light coupling relays
TLP3107, the peripheral circuit with light coupling relay TLP3107；The control terminal and chip of the central controller module
The input terminal of MC74HC273 connects, the output end and light coupling relay TLP175A or light coupling relay TLP3107 of MC74HC273
Input terminal connection, the output end of light coupling relay TLP175A and light coupling relay TLP3107 connect with alarm device.
Compared with prior art, the beneficial effects of the present invention are:
The present invention accurately acquires each operation data of power supply by data acquisition module, and data acquisition module passes through optocoupler,
Battery can be isolated in the running various interference of charge and discharge；Each operation data of power supply is converted into reference format by protocol conversion module
Agreement, improve the efficiency of access upper layer network management, save development cost and time；Module is to upper layer network management by wireless communication
Reported data improves message transmission rate and anti-interference；The mode that warning processing module is extended by using I/O mouthfuls,
Cooperate light coupling relay, realizes and control multiple alarm devices.
Detailed description of the invention
Fig. 1 is block diagram of the invention；
Fig. 2 is the circuit diagram of optocoupler PC817A in data acquisition module of the invention；
Fig. 3 is the circuit diagram of chip MC74HC273 in warning processing module of the invention；
Fig. 4 is the circuit diagram of light coupling relay TLP175A in warning processing module of the invention；
Fig. 5 is the circuit diagram of light coupling relay TLP3107 in warning processing module of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figs. 1-5, transformer substation communication power supply wireless protocol conversion apparatus of the present invention, comprising: central controller module
1, power supply module 2, data acquisition module 3, wireless communication module 4, protocol conversion module 5 and warning processing module 6；Data are adopted
Collection module 3 is connect with central controller module 1, and data acquisition module 3 is for acquiring each operation data of communication power supply；Power supply module
2 connect with central controller module 1, and power supply module 2 is used to power to central controller module 1；Warning processing module and center
Controller module 1 connects, and warning processing module is alerted based on the alarm signal of central controller module 1；Protocol conversion mould
Block 5 is connect with central controller module 1, and protocol conversion module 5 is used for each operation data of power supply for acquiring data acquisition module 3
Carry out protocol translation；Wireless communication module 4 is connect with central controller module 1, and wireless communication module 4 is used for will be after protocol translation
Each operation data of power supply be uploaded to server.
When physical circuit designs, data acquisition module 3 includes several optocoupler PC817A and several optocoupler PC817A cooperation
Peripheral circuit, several operational amplifier 74LS158 and the peripheral circuit with operational amplifier 74LS158 cooperation；Signal access
Terminate the input terminal into optocoupler PC817A, the input terminal of the output end access operational amplifier 74LS158 of optocoupler PC817A, operation
The input terminal of the output end access central controller module 1 of amplifier 74LS158, as shown in Fig. 2, the access of power supply operation data
End first passes through optocoupler PC817 and carries out Phototube Coupling, the one end resistance R113 connection of incoming end one foot YX0 and 1.2K, resistance R113
The other end capacitor with the A foot of optocoupler PC817A, the cathode of MMSZ5240B zener diode D22 and 10Uf/25V respectively
The one end C343 connection connection, another foot YX_NO of incoming end respectively with the anode of MMSZ5240B zener diode D22, capacitor C343
The connection of the K foot of the other end and optocoupler PC817, the C foot of optocoupler PC817 meet power supply VCC, the E foot of optocoupler PC817 respectively with 4.7K
The one end resistance R114 and 1Nf/50V the connection of the one end capacitor C51, the resistance R114 other end and another termination of capacitor C51
Ground, the E foot of optocoupler PC817 access the input terminal of subsequent operational amplifier 74LS158 as output pin.Warning processing module packet
Include several pieces chips MC74HC273, peripheral circuit, several light coupling relay TLP175A and light with chip MC74HC273 cooperation
The peripheral circuit of coupling relay TLP175A, several light coupling relay TLP3107, the periphery electricity with light coupling relay TLP3107
Road；The control terminal of central controller module 1 is connect with the input terminal of chip MC74HC273, the output end and optocoupler of MC74HC273
The connection of the input terminal of relay TLP175A or light coupling relay TLP3107, light coupling relay TLP175A and light coupling relay
The output end of TLP3107 is connect with alarm device.As in Figure 3-5, the D0-D7 foot and central controller of chip MC74HC273
The D0-D7 foot of module 1STM32F103RD connects, the output pin of chip MC74HC273 respectively with several light coupling relays
1 foot of input pin of TLP3107 and/or several coupling relay TLP175A connection, chip MC74HC273 have in circuit it is several, lead to
It crosses chip selection signal to be selected, realizes I/O mouthfuls of extension.
In use, data acquisition module is connect with communication power supply, each operation data of communication power supply is acquired, and data are passed
Central controller module is passed, central controller module is first by data compared with preset alarm threshold value, if reaching alarming value
It is then alerted by chip MC74HC273 and light coupling relay to control alarm device, central controller module can also incite somebody to action
Each operation data of the communication power supply of acquisition carries out code conversion, is converted into 61850 or 104 agreements of standard, then pass through channel radio
Letter module is reported to upper layer network management.
In addition to the implementation, the present invention can also have other embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within the protection domain of application claims.
Claims (4)
1. a kind of transformer substation communication power supply wireless protocol conversion apparatus characterized by comprising central controller module, power supply
Module, data acquisition module, wireless communication module, protocol conversion module and warning processing module；The data acquisition module
It is connect with the central controller module, data acquisition module is for acquiring each operation data of communication power supply；The power supply module
It is connect with the central controller module, power supply module is used to power to central controller module；The warning processing module with
The central controller module connection, warning processing module are alerted based on the alarm signal of central controller module；It is described
Protocol conversion module is connect with the central controller module, and protocol conversion module is used for the power supply of data collecting module collected
Each operation data carries out protocol translation；The wireless communication module is connect with the central controller module, wireless communication module
For each operation data of power supply after protocol translation to be uploaded to server.
2. transformer substation communication power supply wireless protocol conversion apparatus as described in claim 1, which is characterized in that the center control
Device module includes chip STM32F103RD and the peripheral circuit with chip STM32F103RD cooperation.
3. transformer substation communication power supply wireless protocol conversion apparatus as claimed in claim 1 or 2, which is characterized in that the data
Acquisition module includes several optocoupler PC817A, peripheral circuit, several operational amplifiers with several optocoupler PC817A cooperation
74LS158 and the peripheral circuit cooperated with operational amplifier 74LS158；The input of signal incoming end access optocoupler PC817A
End, the input terminal of the output end access operational amplifier 74LS158 of optocoupler PC817A, the output end of operational amplifier 74LS158
Access the input terminal of central controller module.
4. transformer substation communication power supply wireless protocol conversion apparatus as claimed in claim 1 or 2, which is characterized in that the alarm
Processing module includes several pieces chips MC74HC273, the peripheral circuit cooperated with chip MC74HC273, several light coupling relays
TLP175A, peripheral circuit, several light coupling relay TLP3107 and light coupling relay with light coupling relay TLP175A
The peripheral circuit of TLP3107；The control terminal of the central controller module is connect with the input terminal of chip MC74HC273,
The output end of MC74HC273 is connect with the input terminal of light coupling relay TLP175A or light coupling relay TLP3107, optocoupler relay
The output end of device TLP175A and light coupling relay TLP3107 are connect with alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166049.7A CN110086766B (en) | 2019-03-06 | 2019-03-06 | Wireless protocol conversion device for transformer station communication power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166049.7A CN110086766B (en) | 2019-03-06 | 2019-03-06 | Wireless protocol conversion device for transformer station communication power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110086766A true CN110086766A (en) | 2019-08-02 |
| CN110086766B CN110086766B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910166049.7A Active CN110086766B (en) | 2019-03-06 | 2019-03-06 | Wireless protocol conversion device for transformer station communication power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034375A (en) * | 2020-08-10 | 2020-12-04 | 中捷通信有限公司 | Communication power supply monitoring and module maintenance test system |
| CN114295280A (en) * | 2022-03-09 | 2022-04-08 | 成都凯天电子股份有限公司 | Pressure signal scanning measurement system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181428A (en) * | 2014-08-29 | 2014-12-03 | 国网安徽省电力公司淮南供电公司 | Insulation online state monitoring device of zinc oxide arrester |
| CN204595179U (en) * | 2015-04-30 | 2015-08-26 | 国家电网公司 | A kind of communication storage battery wireless monitoring terminal |
| CN205880163U (en) * | 2016-07-20 | 2017-01-11 | 中能电力科技开发有限公司 | Wind turbine generator system real -time data collection system |
| CN106936838A (en) * | 2017-03-29 | 2017-07-07 | 苏州中材建设有限公司 | It is applied to the control system and control method of industrial equipment communication Protocol Conversion |
| US20180205764A1 (en) * | 2017-01-16 | 2018-07-19 | Samsung Electronics Co., Ltd. | Method for communication using plurality of protocols and electronic device thereof |
| CN208013346U (en) * | 2018-03-26 | 2018-10-26 | 国家电网公司 | A kind of Multifunctional power network acquisition fault treating apparatus |
-
2019
- 2019-03-06 CN CN201910166049.7A patent/CN110086766B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181428A (en) * | 2014-08-29 | 2014-12-03 | 国网安徽省电力公司淮南供电公司 | Insulation online state monitoring device of zinc oxide arrester |
| CN204595179U (en) * | 2015-04-30 | 2015-08-26 | 国家电网公司 | A kind of communication storage battery wireless monitoring terminal |
| CN205880163U (en) * | 2016-07-20 | 2017-01-11 | 中能电力科技开发有限公司 | Wind turbine generator system real -time data collection system |
| US20180205764A1 (en) * | 2017-01-16 | 2018-07-19 | Samsung Electronics Co., Ltd. | Method for communication using plurality of protocols and electronic device thereof |
| CN106936838A (en) * | 2017-03-29 | 2017-07-07 | 苏州中材建设有限公司 | It is applied to the control system and control method of industrial equipment communication Protocol Conversion |
| CN208013346U (en) * | 2018-03-26 | 2018-10-26 | 国家电网公司 | A kind of Multifunctional power network acquisition fault treating apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034375A (en) * | 2020-08-10 | 2020-12-04 | 中捷通信有限公司 | Communication power supply monitoring and module maintenance test system |
| CN112034375B (en) * | 2020-08-10 | 2021-07-30 | 中捷通信有限公司 | Communication power supply monitoring and module maintenance test system |
| CN114295280A (en) * | 2022-03-09 | 2022-04-08 | 成都凯天电子股份有限公司 | Pressure signal scanning measurement system |
| CN114295280B (en) * | 2022-03-09 | 2022-06-07 | 成都凯天电子股份有限公司 | Pressure signal scanning measurement system |
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| Publication number | Publication date |
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| CN110086766B (en) | 2024-03-29 |
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