CN106100700A - Industrial Internet of Things information transferring methods based on DL/T645 stipulations and device - Google Patents
Industrial Internet of Things information transferring methods based on DL/T645 stipulations and device Download PDFInfo
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- CN106100700A CN106100700A CN201610651927.0A CN201610651927A CN106100700A CN 106100700 A CN106100700 A CN 106100700A CN 201610651927 A CN201610651927 A CN 201610651927A CN 106100700 A CN106100700 A CN 106100700A
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- interface
- power line
- carrier module
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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
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
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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
- H04L67/12—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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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a kind of industrial Internet of Things information transferring method based on DL/T645 stipulations and device.The present invention utilizes the medium that widely distributed electric lines of force transmits as information, is substantially reduced factory's operation cost, reduces the communication network expense that erection is new, meets the requirement of development intelligence manufacture.With DL/T645 stipulations for Primary communication agreement, power line carrier module have employed BPLC technology, can fully ensure data in real time, efficiently, the transmission of safety and stability, electrical equipment in factory, instrument and sensor are effectively monitored and controlled for PC control centre of factory and provide stable data transmission hardware, improve factory's monitoring management level, simultaneously, for the strong noise overcome in severe industrial electrical environments on power line channel, high time-varying, highly attenuating characteristic, OFDM mode is used to modulate, and optimize carrier transmitting-receiving circuit, improve its service behaviour.The inventive method is simple, safeguards convenient, plug and play, and with low cost, using effect is good.
Description
Technical field
The present invention relates to technical field of electric power communication, a kind of industrial Internet of Things information based on DL/T645 stipulations pass
Transmission method and device.
Background technology
Commercial production enters intellectuality, automation age the most in big strides, and traditional manufacture proportion Chinese now is relatively
Greatly, the competitive advantage of its low cost is gradually lost, and puts into effect " industry 4.0 " strategic planning of development extremely urgent.The mesh of " industry 4.0 "
The information physical system that is namely based on realize intelligent plant, allow manufacturing links fully merge with the Internet, formed work
Industry the Internet, it is achieved China's " intelligence " makes.Intelligent plant requires grasp the running status of each field apparatus and factory's fortune in real time
Row environment, to provide higher monitoring management level.And current communications infrastructure transfer rate is low, poor real, anti-dry
The shortcomings such as ability of disturbing is weak, it is difficult to meet the requirement in " industry 4.0 " epoch.Therefore, build data-handling capacity and capacity is bigger, clothes
The business more reliable industrial communication infrastructure of quality becomes the key realizing intelligence manufacture.
At present, industrial automation use communication mode have USART, Modbus, CAN, network broadband,
The modes such as ZigBee, mode real-time is poor, speed is low, networking is complicated for these, difficult in maintenance, construction cost is high, uncomfortable
It is combined in Rapid Popularization in severe industrial electrical environments, it is impossible to meet the demand of modern intelligence manufacture.Therefore, build data to process
The industrial communication infrastructure that ability is higher, service quality is more reliable becomes the key realizing intelligence manufacture.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of industrial Internet of Things information transmission side based on DL/T645 stipulations
Method and device, it can be effectively improved safety and the real-time of data transmission of system, and reduce wiring cost, to overcome
The deficiencies in the prior art.
The present invention is achieved in that industrial Internet of Things information transferring method based on DL/T645 stipulations, by industry Internet of Things
Network control node gathers factory site data, and the factory site data gathered pass through power carrier mould with DL/T645 stipulations
Block, the data received are modulated into high-frequency carrier signal through OFDM by power line carrier module, utilize low-voltage power line as information
The medium of transmission, transfers data to PC control centre of factory.
Built-in industrial Internet of Things based on DL/T645 stipulations control node, including STM32 microprocessing unit, power carrier
Module, connects on STM32 microprocessing unit and has sensor interface, equipment interface and power line carrier module interface；The micro-place of STM32
Reason unit is connected with power module respectively with power line carrier module, and STM32 microprocessing unit passes through power line carrier module interface
It is connected with using DL/T645 agreement between power line carrier module.
Described sensor interface is I2C interface or GPIO interface；Described equipment interface is USART interface；Described
Power line carrier module interface is USART interface.
The composition of described power line carrier module includes MCU control unit, is connected to band logical in MCU control unit
Filter circuit, EEPROM, signal power amplifier filter circuit and interface circuit, bandwidth-limited circuit and signal
Power amplifier filter circuit is all connected to couple on circuit, and interface circuit is connected with power line carrier module interface.
STM32 microprocessing unit is also associated with storage element.
Each built-in industrial Internet of Things controls node fixing MAC Address.
There is advantages that the present invention utilizes the medium that widely distributed electric lines of force transmits as information,
It is substantially reduced factory's operation cost, reduces the communication network expense that erection is new, meet the requirement of development intelligence manufacture.With DL/
T645 stipulations are Primary communication agreement, and power line carrier module have employed BPLC technology, can fully ensure data in real time, efficiently,
The transmission of safety and stability, is effectively monitored and controlled the electrical equipment in factory, instrument and sensing for PC control centre of factory
Device provides stable data transmission hardware, improves factory's monitoring management level, meanwhile, for overcoming severe industrial electrical environments
Strong noise on middle power line channel, high time-varying, highly attenuating characteristic, use OFDM mode to modulate, and optimizes carrier transmitting-receiving electricity
Road, improves its service behaviour.The inventive method is simple, safeguards convenient, plug and play, and with low cost, using effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the workflow diagram of the present invention；
Fig. 3 is the power carrier interface circuit of the power line carrier module of the present invention；
Fig. 4 is the coupling circuit of the power line carrier module of the present invention；
Fig. 5 is the signal power amplifier filter circuit of the power line carrier module of the present invention；
Fig. 6 is the bandwidth-limited circuit of the power line carrier module of the present invention；
Fig. 7 is the system block diagram during work of the present invention.
Detailed description of the invention
Embodiments of the invention: industrial Internet of Things information transferring methods based on DL/T645 stipulations, by industry Internet of Things network control
Node processed gathers factory site data, and the factory site data gathered pass through power line carrier module with DL/T645 stipulations, electricity
The data received are modulated into high-frequency carrier signal through OFDM by power carrier module, utilize low-voltage power line to transmit as information
Medium, transfers data to PC control centre of factory.
Built-in industrial Internet of Things based on DL/T645 stipulations control node, including STM32 microprocessing unit 1, power carrier
Module 2, connects on STM32 microprocessing unit 1 and has sensor interface 3, equipment interface 4 and power line carrier module interface 5；
STM32 microprocessing unit 1 is connected with power module 6 respectively with power line carrier module 2, and STM32 microprocessing unit 1 passes through electric power
DL/T645 agreement is used to be connected between carrier module interface 5 with power line carrier module 2；Described sensor interface 3 connects for I2C
Mouth or GPIO interface；Described equipment interface 4 is USART interface；Described power line carrier module interface 5 is USART interface；Institute
The composition of the power line carrier module 2 stated includes MCU control unit 2-1, is connected to carry logical filter in MCU control unit 2-1
Wave circuit 2-2, EEPROM 2-3, signal power amplifier filter circuit 2-4 and interface circuit 2-5, bandpass filtering
Circuit 2-2 and signal power amplifier filter circuit 2-4 is all connected to couple on circuit 2-6, and interface circuit 2-5 connects with power line carrier module
Mouth 5 connects；STM32 microprocessing unit 1 is also associated with storage element 7；Each built-in industrial Internet of Things controls node to be had
Fixing MAC Address.
Power module 6: this part provides working power, native system directly to be powered by alternating current power supply for whole system, passes through
Full bridge rectifier and power module of voltage regulation 7805 constitute the supply module of whole circuit.
The STM32 microprocessing unit 1 of the present embodiment uses STM32F103VET6 as the control chip of data acquisition unit
STM32F103VET6 is the microcontroller of 32 Cortex M3 kernels that ST Microelectronics produces, built-in 128KByte
The SRAM of Flash and 20KByte, abundant I/O port and 2 I2C and SPI, 3 USART, 1 USB and 1 CAN etc. are logical
Letter interface.In use, by numbers such as the COM1 collection site equipment running status in addition to USART3, instrument, sensings
According to, power line carrier module Transistor-Transistor Logic level is converted to the coupling of RF power carrier signal and is injected on power line channel and passes
Defeated.Meanwhile, STM32F103VET6 receives and comes from the DL/T645 frame proposing in power line channel and reducing, by receiving frame
In MAC Address (12 bit walk addresses of terminal) and (Flash of the built-in 128Kbyte of STM32) in ROOM in the setting of storage
Standby, instrument and sensing MAC (12 bit walk addresses of terminal) are compared, to determine control target, finally according to from DL/T645
The data field enforcement action extracted in frame, as controlled brightness of illumination, producing device action etc..Specific works flow process is shown in Fig. 2
(1)、(2)。
Sensor interface 3 is connected with on-the-spot all kinds of digital sensor a, and the output signal of sensor a should meet control core
The sheet STM32F103VET6 requirement to incoming level.
Equipment interface 4 is connected with field apparatus b, the information such as the operational data of field apparatus b, MAC Address is sent to
In STM32 microprocessing unit 1.
The chip of the STM32 microprocessing unit 1 used in the present embodiment has contained sensor interface 3, equipment interface 4
And power line carrier module interface 5
Power line carrier module 2 uses the QCA7000 broadband power carrier communication as core produced with Qualcomm
(BPLC) module, this chip support SPI and UART communication interface, be realize with power line channel transmission gather field data,
The key of control command, in its workflow such as 2 shown in (3).During as receiving terminal, when power line carrier module 2 detects electric power
When having carrier signal on line channel, carrier transmitting-receiving circuit sends electricity to after the signal of reception is carried out bandpass filtering and amplitude limiting processing
The chip QCA7000 of power carrier module 2 is demodulated reduction DL/T645 Frame, and is directly passed by serial ports by this Frame
Giving STM32 microprocessing unit 1, STM32 microprocessing unit 1 performs corresponding action by corresponding calculating；As transmitting terminal
Time, when power line carrier module 2 monitors and has STM32 microprocessing unit 1 to transmit the data come on serial ports, power line carrier module 2
QCA7000 by this DL/T645 Frame use OFDM mode modulate after be sent to carrier transmitting-receiving circuit, carrier transmitting-receiving circuit
It is coupled in power line channel after this signal is amplified.The coupling circuit of power carrier and transmission circuit are as shown in Figure 3.
The coupling circuit 2-6 of power line carrier module 2 as shown in Figure 4, is made up of R1, R2, R6, R7, T2, C8, is QCA7000
Chip injects on power line channel and extracts the core component of high-frequency carrier signal.One end of high frequency capacitance C8 connects 220V electricity
Line of force N_PLC access point, the other end is connected with resistance R1, R2 and is accessed coupling transformer T2.BV12C is Transient Suppression Diode,
Surge can be absorbed and suppress the interference in electrical network, effectively the precision components in protection electronic circuit.GD1 is electrostatic two pole
Pipe, can eliminate the electrostatic impact on system.C8 and resistance R1, R2, R6, R7 constitute single order high pass filter, filter and are entrained in height
Frequently the low-frequency noise signal in carrier signal, it is ensured that useful signal passes through.
The bandwidth-limited circuit 2-2 of power line carrier module 2 is that power carrier signal receives circuit, and its circuit is as shown in Figure 5.
When coupling circuit 2-6 and extracting the high-frequency carrier signal on power line channel, 3,4 feet of coupling transformer T2 it is input to carry
Ripple signal receiving circuit carries out bandpass filtering, amplitude limiting processing, then carries out through RXIN_N, RXIN_P port entrance QCA7000
OFDM demodulation reduction DL/T645 Frame also verifies its accuracy, is transmitted directly to by USART mouth by the Frame of recovery
STM32 microprocessing unit 1.STM32 microprocessing unit 1 extract in the DL/T645 Frame received mailing address, control code,
Data field, data and equipment, instrument and the biography of storage in local ROOM (Flash of the built-in 128Kbyte of STM32) that will extract
Sensor 12 bit walk address compares identification and determines target, according to the control code extracted, data field enforcement action, as controlled to shine
Lightness, production device action etc..
The signal power amplifier filter circuit 2-4 of power line carrier module 2 is power carrier signal transtation mission circuit, its circuit such as Fig. 6
Shown in, when the USART port of QCA7000 receives the field data that STM32 microprocessing unit 1 gathers, its number received
Being modulated into high-frequency carrier signal according to carrying out OFDM, last signal exports transtation mission circuit through TXOUT_N, TXOUT_P pin, then
Logical overcoupled circuits 2-6 is injected on power line channel transmission.
Circuit connecting mode between above-mentioned module is the known approaches of those skilled in the art, the most just repeats no more.
Certainly, being more than the concrete exemplary applications of the present invention, the present invention also has other embodiment, and all employings are equal to
Replace or the technical scheme of equivalent transformation formation, within all falling within protection domain of the presently claimed invention.
Claims (5)
1. an industrial Internet of Things information transferring method based on DL/T645 stipulations, it is characterised in that: controlled by industry Internet of Things
Node gathers factory site data, and the factory site data gathered pass through power line carrier module, electric power with DL/T645 stipulations
The data received are modulated into high-frequency carrier signal through OFDM by carrier module, utilize the matchmaker that low-voltage power line transmits as information
It is situated between, transfers data to PC control centre of factory.
2. the built-in industrial Internet of Things based on DL/T645 stipulations realizing transmission method as claimed in claim 1 control
Node, including STM32 microprocessing unit (1), power line carrier module (2), it is characterised in that: on STM32 microprocessing unit (1)
Connect and have sensor interface (3), equipment interface (4) and power line carrier module interface (5)；STM32 microprocessing unit (1) and electric power
Carrier module (2) is connected with power module (6) respectively, and STM32 microprocessing unit (1) passes through power line carrier module interface (5)
It is connected with using DL/T645 agreement between power line carrier module (2).
Built-in industrial Internet of Things based on DL/T645 stipulations the most according to claim 2 control node, it is characterised in that:
Described sensor interface (3) is I2C interface and GPIO interface；Described equipment interface (4) is USART interface；Described electricity
Power carrier module interface (5) is USART interface.
Built-in industrial Internet of Things based on DL/T645 stipulations the most according to claim 2 control node, it is characterised in that:
The composition of described power line carrier module (2) includes MCU control unit (2-1), connects respectively in MCU control unit (2-1)
There are bandwidth-limited circuit (2-2), EEPROM (2-3), signal power amplifier filter circuit (2-4) and interface electricity
Road (2-5), bandwidth-limited circuit (2-2) and signal power amplifier filter circuit (2-4) are all connected to couple on circuit (2-6), interface
Circuit (2-5) is connected with power line carrier module interface (5).
Built-in industrial Internet of Things based on DL/T645 stipulations the most according to claim 2 control node, it is characterised in that:
STM32 microprocessing unit (1) is also associated with storage element (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651927.0A CN106100700A (en) | 2016-08-10 | 2016-08-10 | Industrial Internet of Things information transferring methods based on DL/T645 stipulations and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651927.0A CN106100700A (en) | 2016-08-10 | 2016-08-10 | Industrial Internet of Things information transferring methods based on DL/T645 stipulations and device |
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| CN106100700A true CN106100700A (en) | 2016-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111869116A (en) * | 2018-03-30 | 2020-10-30 | 日本瑞翁株式会社 | Power wiring network device |
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| CN104104412A (en) * | 2014-07-28 | 2014-10-15 | 安徽科大智能电网技术有限公司 | Direct memory access (DMA) based power line network system and communication method thereof |
| CN204795032U (en) * | 2015-06-16 | 2015-11-18 | 深圳市龙俐智能科技有限公司 | Thing networking communication system based on power line carrier communication technique founds |
| CN105337421A (en) * | 2015-12-09 | 2016-02-17 | 梅照付 | Protocol conversion method and mutual communication method in intelligent power network system |
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2016
- 2016-08-10 CN CN201610651927.0A patent/CN106100700A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118075A (en) * | 2013-01-11 | 2013-05-22 | 江庆 | Collection server achieving multi-way transmission of collected data |
| CN104104412A (en) * | 2014-07-28 | 2014-10-15 | 安徽科大智能电网技术有限公司 | Direct memory access (DMA) based power line network system and communication method thereof |
| CN204795032U (en) * | 2015-06-16 | 2015-11-18 | 深圳市龙俐智能科技有限公司 | Thing networking communication system based on power line carrier communication technique founds |
| CN105337421A (en) * | 2015-12-09 | 2016-02-17 | 梅照付 | Protocol conversion method and mutual communication method in intelligent power network system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111869116A (en) * | 2018-03-30 | 2020-10-30 | 日本瑞翁株式会社 | Power wiring network device |
| CN111869116B (en) * | 2018-03-30 | 2022-07-05 | 日本瑞翁株式会社 | Power wiring network device |
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Application publication date: 20161109 |
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