CN113853033A - Power distribution network differential protection terminal communication module based on 5G technology and communication method - Google Patents
Power distribution network differential protection terminal communication module based on 5G technology and communication method Download PDFInfo
- Publication number
- CN113853033A CN113853033A CN202111016071.7A CN202111016071A CN113853033A CN 113853033 A CN113853033 A CN 113853033A CN 202111016071 A CN202111016071 A CN 202111016071A CN 113853033 A CN113853033 A CN 113853033A
- Authority
- CN
- China
- Prior art keywords
- communication
- data
- module
- transmission
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims abstract description 192
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005516 engineering process Methods 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 110
- 230000005540 biological transmission Effects 0.000 claims abstract description 109
- 230000003287 optical effect Effects 0.000 claims description 51
- 230000008569 process Effects 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 6
- 239000013307 optical fiber Substances 0.000 description 9
- 230000006870 function Effects 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to the technical field of communication, in particular to a power distribution network differential protection terminal communication module based on a 5G technology and a communication method, wherein the power distribution network differential protection terminal communication module comprises the following components: the uplink and downlink transceiving units are used for connecting a communication network and transmitting data; the master control management unit is used for switching the communication modes of the uplink and downlink transceiving units according to the service data types, starting the corresponding data transmission flow and controlling the transmission processing unit to work; the transmission processing unit is used for finishing a data processing flow in a corresponding communication protocol; and the power supply management unit is used for carrying out power supply management on the uplink and downlink transceiving unit, the master control management unit and the transmission processing unit. The invention covers a 5G + EPON dual-communication mode, thereby ensuring the applicability of the communication module; the master control management unit adopts a double-core design mode and an ARM + DSP mode, the ARM processing chip is responsible for cooperative control, the DSP processing chip is responsible for data processing, function distribution is detailed, and power consumption is effectively reduced.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a power distribution network differential protection terminal communication module and a communication method based on a 5G technology.
Background
With the access of a distributed new energy power supply, great pressure is brought to the operation management work of the quality of a power distribution network line, and particularly in the aspect of a communication access network, how to realize end-to-end management of distributed nodes is the problem which is mainly solved by the power distribution network. According to the traditional large-scale and centralized power distribution station/station access, information transmission between stations can be simply finished by means of optical fibers, industrial Ethernet and the like, and inter-station protection is achieved.
At present, a differential protection communication system of a power distribution network mostly adopts a single EPON optical communication network technology communication or a 4G wireless communication technology communication, but both the two modes have some problems. The EOPN network replaces an exchanger device with a passive light splitting device, can realize multi-path distribution of data flow, is suitable for distributed node access, each ONU adopts a parallel connection mode for access, has strong multi-point failure resistance, but all service processing is concentrated on the OLT, when the OLT fails, the whole network can be broken down, and the bottom-layer node communication can also be terminated; due to the fact that the insertion loss value of an OLT device is limited, the distance of distributed access nodes cannot exceed 20km, the number of ONU access is limited, the network topology cannot be too large, and the method is not suitable for large-scale distributed power supply cluster access. Because the transmission medium is in a wired mode of optical fibers, the problems of great investment in laying and construction of the optical fibers exist, the bandwidth of the data service is protected to be in the Mbps level, each ONU link needs to be supported by an independent optical fiber, the current bandwidth of the optical fibers can reach the GB level, the optical fiber resource is extremely wasted, and the large economic investment can be brought by the full-line monitoring in the wired mode in the aspects of construction and later-period operation and maintenance; and in the aspect of the requirement of later-stage access station position transformation, the low-cost transformation project is difficult to complete by the optical fiber mode. At present, the air interface transmission time delay of a 4G wireless communication network is between 10 and 50ms, the transmission bandwidth is 1000Mbps/s, the one-way 15ms time delay requirement of the device cannot be completely met, and with the trend of protecting the diversity development of service modes, the actual convergence bandwidth also presents a bearing bottleneck, in addition, the 4G wireless communication safety performance adopts a prohibitively-high safety algorithm to enhance the safety performance on a physical transmission layer, but does not form a fully-closed safety protection strategy, especially for services with higher safety level requirements such as relay protection, safety protection means need to be designed on an application layer, a service terminal side and the like, and the wireless space transmission risk resistance is further improved.
Disclosure of Invention
The invention provides a power distribution network differential protection terminal communication module and a method based on a 5G technology, overcomes the defects of the prior art, and can effectively solve the problems of large delay, limited bandwidth and easy occurrence of bearing bottleneck of the existing power distribution network differential protection communication system based on 4G wireless communication.
One of the technical schemes of the invention is realized by the following measures: the utility model provides a distribution network differential protection terminal communication module based on 5G technique, includes:
the system comprises an uplink receiving and transmitting unit and a downlink receiving and transmitting unit, wherein the uplink receiving and transmitting unit is integrated with a plurality of communication modes and is used for connecting a communication network and transmitting data, and the communication modes comprise EPON optical communication and 5G communication;
the master control management unit is used for switching the communication modes of the uplink and downlink transceiving units according to the service data types, starting the corresponding data transmission flow and controlling the transmission processing unit to work; the service data types comprise real-time service data and non-real-time service data;
the transmission processing unit is used for finishing a data processing flow in a corresponding communication protocol;
and the power supply management unit is used for carrying out power supply management on the uplink and downlink transceiving unit, the master control management unit and the transmission processing unit.
The following is further optimization or/and improvement of the technical scheme of the invention:
the uplink and downlink transceiving unit comprises an optical communication interface component and a 5G communication interface component;
the optical communication interface component comprises an EPON optical interface module and an EPON optical interface circuit, and realizes the receiving and transmitting of various service data;
the 5G communication interface component comprises a wireless communication interface, a wireless communication interface circuit, an interface conversion circuit and a data access control circuit, and realizes the transceiving of real-time service data; the wireless communication interface comprises a radio frequency ANTx interface, a SIM interface, a PCI interface, an SPI interface, an audio interface and a data communication interface.
The master control management unit comprises a first management module and a second management module;
the first management module is used for managing and controlling communication switching and controlling transmission task driving, and comprises the steps of determining the service type and switching the communication mode;
and the second management module is used for controlling the transmission processing unit to perform various transmission processing tasks and realizing data interactive processing.
The transmission processing unit comprises a baseband data processing module, a radio frequency data processing module, a data logic module, a time synchronization processing data module and an interrupt data processing module, wherein the baseband data processing module, the radio frequency data processing module, the data logic module, the time synchronization processing data module and the interrupt data processing module are sequentially connected, and a data processing flow in a corresponding communication protocol is completed according to the control of the master control management unit.
The power management unit comprises a first power management module and a second power management module;
the first power management module comprises an optical module power panel, an optical module power interface and an optical module power control unit, wherein the optical module power panel, the optical module power interface and the optical module power control unit are sequentially connected to supply power for EPON optical communication;
the second power management module comprises a wireless module power panel, a wireless module power interface and a wireless module power control unit, and the wireless module power panel, the wireless module power interface and the wireless module power control unit are sequentially connected to supply power for 5G communication.
The device also comprises an isolation assembly for isolating the power supply, the interface and the data control.
The second technical scheme of the invention is realized by the following measures: a power distribution network differential protection terminal communication method based on a 5G technology comprises the following steps:
the master control management unit determines the type of the service data to be transmitted, acquires a transmission starting instruction, selects and switches a communication mode, controls the actions of the uplink and downlink transceiving units and the transmission processing unit, and starts a corresponding data transmission flow; the service types comprise real-time service data and non-real-time service data;
the uplink and downlink transceiving unit and the transmission processing unit execute a service data transmission process.
The following is further optimization or/and improvement of the technical scheme of the invention:
the above-mentioned total management unit confirms the business data type of waiting to transmit, obtains the transmission start instruction, selects and switches over the communication mode, including:
filtering the service data to be transmitted, and defaulting the service data to be real-time service data;
resetting the real-time service, acquiring a transmission starting instruction, switching and starting a 5G communication data transmission flow;
judging whether the formats of the service data messages are consistent, if so, keeping connection, if not, resetting the non-real-time service, and switching and starting an EPON optical communication data transmission flow according to a transmission starting instruction;
and judging whether the formats of the service data messages are consistent, if so, keeping the connection, and if not, resetting the real-time service, acquiring a transmission starting instruction, switching and starting a 5G communication data transmission flow.
If the differential protection service data is transmitted, the specific transmission control process includes:
the end side of the differential protection device sends current fault or direction data;
the radio frequency ANTx interface receives corresponding data in a frequency sweeping mode, the first management module preliminarily completes the characteristic judgment of the service data and simultaneously deletes noise and interference attack signals in time;
the second management module controls the transmission processing unit to judge whether the current time is in the interrupt period, and in response to the judgment, the second management module establishes network connection and starts to be linked with the 5G base station;
the second management module sets initialization parameters of a uRLLC slicing process aiming at the real-time service and controls the transmission processing unit to complete the intermediate frequency processing and baseband processing processes of the corresponding communication protocol;
and the 5G communication interface component is utilized to send data outwards, and multiple handshaking is completed between the data and the opposite base station at the same time, so that the confirmation of data content transmission is completed, and the transmission is finished, thereby ensuring the consistency and the integrity of data transmission.
The invention discloses a power distribution network differential protection terminal communication module and a method based on a 5G technology, which have the following advantages:
1. the communication module comprises a 5G + EPON dual-communication mode, the applicability of the communication module is ensured, namely when only real-time services such as power distribution network differential protection and the like are transmitted, 5G communication is preferentially selected, corresponding basic configuration is started, the power consumption of an uplink transceiving unit and a downlink transceiving unit is enabled to be the lowest, when EPON optical communication resources exist, non-real-time services and real-time services are transmitted simultaneously or only non-real-time services are transmitted, EPON optical communication is preferentially selected, and an optimized channel allocation scheme is designed according to time slot arrangement, so that the stability of a communication network is enhanced;
2. the master control management unit adopts a double-core design mode and an ARM + DSP mode, the ARM processing chip is responsible for cooperative control, the DSP processing chip is responsible for data processing, function distribution is detailed, power consumption is effectively reduced, the selection, judgment and switching capabilities of various fusion communication mechanisms are improved, and the expansion of data processing functions is facilitated;
3. the invention can be directly embedded in the power distribution terminal bottom plate, part of power supply and interface can be shared, compared with the independent communication module hard integration scheme, the device has smaller volume and high function integration level;
4. physical and logical isolation is adopted among data processing flows, so that crosstalk is avoided;
5. the invention adopts the wake-up mode to access the target form data, thereby reducing the overall power consumption of the system;
6. the dual-service data access flow is designed for switching, independent design is carried out on real-time service and non-real-time service, and the AT is adopted to carry out awakening and switching, so that the back-and-forth switching between the real-time service data and the non-real-time service data is realized, and the effective access and processing of the power distribution fusion service are ensured.
Drawings
Fig. 1 is a schematic diagram of the differential protection communication networking of the power distribution network of the invention.
Fig. 2 is a schematic structural diagram of a communication module according to embodiment 1 of the present invention.
FIG. 3 is a flowchart of the method of example 2 of the present invention.
Fig. 4 is a flowchart of a method for selecting and switching communication modes in embodiment 2 of the present invention.
Fig. 5 is a flowchart of a method for transmitting differential protection service data according to embodiment 2 of the present invention.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
The invention is further described with reference to the following examples and figures:
example 1: as shown in fig. 1 and 2, the present embodiment discloses a power distribution network differential protection terminal communication module based on 5G technology, including:
the system comprises an uplink receiving and transmitting unit and a downlink receiving and transmitting unit, wherein the uplink receiving and transmitting unit is integrated with a plurality of communication modes and is used for connecting a communication network and transmitting data, and the communication modes comprise EPON optical communication and 5G communication; the uplink and downlink transceiver units comprise an EPON optical communication interface component and a 5G communication interface component, so that the embodiment of the invention covers a dual communication mode, and the applicability of a communication module is ensured, namely when only real-time services such as power distribution network differential protection and the like are transmitted, 5G communication is preferentially selected, corresponding basic configuration is started, the power consumption of the uplink and downlink transceiver units is lowest, when EPON optical communication resources exist and non-real-time services and real-time services are transmitted simultaneously or only non-real-time services are transmitted, EPON optical communication is preferentially selected, and an optimized channel allocation scheme is designed according to time slot arrangement, so that the stability of a communication network is enhanced, and the method comprises the following steps:
1. the optical communication interface component comprises an EPON optical interface module and an EPON optical interface circuit, and realizes the receiving and transmitting of various service data; the optical communication interface component is arranged to enrich the diversity of the communication network, and the optical communication interface components are laid under the common condition at present and are a traditional communication connection mode of the power distribution terminal, so that the communication mode is additionally arranged, the reconstruction expense is saved, the idle optical fiber resources are fully utilized, and the communication stability is also ensured;
2. the 5G communication interface component comprises a wireless communication interface, a wireless communication interface circuit, an interface conversion circuit and a data access control circuit, and realizes the transceiving of real-time service data; the wireless communication interface comprises a radio frequency ANTx interface, a SIM interface, a PCI interface, an SPI interface, an audio interface and a data communication interface. Each interface can adopt a software and hardware isolation method, the miniaturized design is realized, more board card space is avoided to be occupied, and a part of plug-and-play interface space is reserved to be used as a backup. The radio frequency ANTx interface concurrently supports LTE uplink single-stream transmission and NR uplink double-stream transmission under the NSA network architecture and supports the measurement functions of LTE carrier waves and NR carrier waves; and the cell switching in the connected LTE system is supported, and the requirement of distribution network topology optimization and transformation is met.
The characteristics of the existing power distribution network are divided into 2 general scenes of power grid control and information acquisition, differential protection belongs to control services, namely real-time services, the requirements on communication transmission capacity are not large, but the requirements on real-time performance and reliability are very high, end-to-end communication delay is required to be in millisecond level, the control is required to be safe and reliable, and the development target that the power supply reliability of the power grid is not lower than 99.999% is supported. The communication access uplink communication protocol of the medium-voltage power distribution network terminal mainly adopts IEC101 and 104 communication protocols at present, wherein 95% of wireless terminals adopt 101 communication protocols, and 5% of optical fiber terminals adopt 104 protocols. The downlink communication protocol supports communication protocols of the acquisition system, and the communication protocols of the acquisition system mainly comprise DL/T645, DL/T698.45, Q/GDW1376.2, Q/GDW11612 and CJ/T188; the communication protocol of the power distribution system is supported, and the communication protocol of the power distribution system mainly comprises Modbus, COAP and DL/T645. Therefore, the communication module should meet the requirements of the uplink and downlink protocols in terms of protocol design. The action principle of distribution network differential protection is that a distribution automation terminal (DTU) compares current values (vectors) at two ends or multiple ends at the same time by using the characteristics of 5G low time delay, high speed and the like, when a current difference value exceeds a threshold value, a fault is judged to occur, a breaker or a switch in the fault is disconnected, differential protection action is executed, and therefore accurate positioning and isolation of the distribution network fault are achieved. According to an 101/104 protocol, current data are 4 measuring points such as A, B, C, zero sequence and the like, the size of single data sent by a single terminal is 20 bytes, the collection frequency is 5 minutes, the data sent by a single point at a time are 1 electric quantity, 4 voltages and 4 currents, the data are calculated by 9 measuring points in total, 20 bytes 9=180 bytes are needed in total, the communication requirement is completed in second level, and the communication overhead is added, so that the minimum requirement of the communication bandwidth is 180 bytes 8 bits/s 5=7.2Kbps, when the bandwidth of a 5G slice service channel is distributed, the wireless channel resource waste is avoided according to the requirement of the single link bandwidth, and the real-time distribution of the resources during the parallel access of multiple nodes is facilitated. Based on the prediction of the development condition of the energy interconnection and interconnection service, the access number of the power distribution internet of things terminals can reach 100/sqkm, the communication time delay is reduced to within 1s, the communication rate reaches 1.11Mbps, and only a 5G wireless communication technology can meet the actual engineering requirements at present. Therefore, the embodiment of the invention is provided with the 5G communication interface component to realize the transmission of real-time service data such as power distribution network differential protection and the like, and a 5G communication single base station can be connected with 10 ten thousand nodes, safety strategies and means are designed in terms of network channel safety, physical safety, slicing service safety, environmental safety, terminal safety, safety monitoring and the like in the aspect of safety protection, the safety of space transmission is ensured, the network self-safety protection capability is stronger, the network attacked event is reduced, the space link is not subjected to virtual monitoring, only end node equipment is monitored in real time, the monitoring cost is reduced, meanwhile, the economical efficiency is greatly reduced compared with that of an EPON optical network, trenching laying is not needed during construction, full-line monitoring is not needed during operation and maintenance, and a large amount of manpower and material resources are saved.
The master control management unit is used for switching the communication modes of the uplink and downlink transceiving units according to the service data types, starting the corresponding data transmission flow and controlling the transmission processing unit to work; the service data types comprise real-time service data and non-real-time service data; the master control management unit comprises a first management module and a second management module, the dual-core design of the embodiment of the invention is realized through the first management module and the second management module, the power consumption is effectively reduced, the selection, judgment and switching capabilities of various converged communication mechanisms are improved, the first management module and the second management module in the embodiment of the invention work and are definitely distributed, wherein the first management module is responsible for cooperative control, and the second management module is responsible for data interaction processing, which is specifically as follows:
1. the first management module is used for managing and controlling communication switching and controlling transmission task driving, and comprises the steps of determining the service type and switching the communication mode, so that cooperative control is realized; the first management module comprises an ARM processing chip and a driving assembly, wherein the main frequency of the ARM processing chip can reach 300MHz, the driving assembly comprises an I2C driver, a UART driver, an SPI driver, a BIOS driver and a PON driver, when the management module works, the ARM processing chip realizes service data communication through the UART driver, the service data form, namely the type, is determined through accounting, and then a communication interface required by switching is selected for service data access;
2. the second management module is used for controlling the transmission processing unit to perform various transmission processing tasks and realizing data interaction processing; the second management module comprises a DSP processing chip, an E2PROM erasable read-only memory, an SDRAM synchronous random access memory and a data logic processing engine, wherein the main frequency of the DSP processing chip can reach 400MHz to complete the digital logic processing function, and is connected with the E2PROM erasable read-only memory, the SDRAM synchronous random access memory and the data logic processing engine in the module, and the data logic processing engine controls a transmission processing unit to complete transmission processing tasks such as 5G RAN side service slicing, radio frequency access, power measurement and control, baseband data processing, frequency hopping processing, channel selection and the like.
The transmission processing unit is used for finishing a data processing flow in a corresponding communication protocol; the transmission processing unit mainly comprises a radio frequency processing part and a baseband processing part; the digital signal processing, the MAC layer protocol analysis, the intermediate frequency data signal processing, the drive control of the radio frequency circuit and the like are completed; the data consistency adopts a GPS and Beidou double-synchronization mode to realize the synchronization of the internal and external data time of the system; compiling the data message processing process into a data flow task; designing a flow interruption program according to the requirements of data measurement, power control, service data and the like in the 5G communication protocol, and efficiently executing the functions of positioning, identifying, calculating, judging and the like; the specific transmission processing unit comprises a baseband data processing module, a radio frequency data processing module, a data logic module, a time synchronization processing data module and an interrupt data processing module.
The power supply management unit is used for carrying out power supply management on the uplink and downlink transceiving unit, the master control management unit and the transmission processing unit; the power management unit comprises a first power management module and a second power management module; because the optical module and the wireless communication module need different electric energy, the optical module needs a-48V DC power supply module, the power supply voltage of the wireless communication module is 3.3V, in order to reduce the whole power consumption, the power is supplied respectively, and an independent power supply control unit is designed to supply power under the condition of awakening the interface service.
The first power management module comprises an optical module power panel, an optical module power interface and an optical module power control unit, wherein the optical module power panel, the optical module power interface and the optical module power control unit are sequentially connected to supply power for EPON optical communication;
the second power management module comprises a wireless module power panel, a wireless module power interface and a wireless module power control unit, and the wireless module power panel, the wireless module power interface and the wireless module power control unit are sequentially connected to supply power for 5G communication.
And the isolation assembly isolates the power supply, the interface and the data control. In the embodiment of the invention, the uplink and downlink transceiving unit, the master control management unit and the transmission processing unit are relatively independent, the functions of the modules are clear, the data process is connected tightly, the timeliness and the synchronism of data processing are ensured, and an isolation assembly is required to be adopted for physical and logical isolation among data processing flows, so that crosstalk is avoided.
Example 2: as shown in fig. 3, the present embodiment discloses a communication method of a power distribution network differential protection terminal communication module based on the 5G technology, including:
step S101, a master control management unit determines the type of service data to be transmitted, acquires a transmission starting instruction, selects and switches a communication mode, controls an uplink and downlink transceiving unit and a transmission processing unit to act, and starts a corresponding data transmission flow; the service types comprise real-time service data and non-real-time service data;
and step S102, the uplink and downlink transceiving unit and the transmission processing unit execute a service data transmission process.
As shown in fig. 4, the determining, by the master control management unit, the type of the service data to be transmitted, acquiring a transmission start instruction, and selecting and switching the communication mode includes:
step S201, filtering the service data to be transmitted, and defaulting to real-time service data;
step S202, resetting the real-time service, acquiring a transmission starting instruction, switching and starting a 5G communication data transmission flow;
after the real-time service is reset, a first management module in the master control management unit performs service data access characteristic identification, transmits a starting instruction (which can be an AT instruction) to enable a built-in software-type analog switch to be connected to an IP data processing module card, and starts a 5G communication data transmission flow;
step S203, judging whether the formats of the service data messages are consistent, if so, keeping connection, if not, resetting the non-real-time service, and switching and starting an EPON optical communication data transmission flow according to a transmission starting instruction;
if the data transmission process is correct, the data transmission process is reset again if the link is abnormal in the data transmission process after the connection is maintained.
And step S204, judging whether the formats of the service data messages are consistent, if so, keeping the connection, if not, resetting the real-time service, acquiring a transmission starting instruction, and switching and starting a 5G communication data transmission process.
As shown in fig. 5, if differential protection service data is transmitted, the specific transmission control process includes:
step S301, the end side of the differential protection device sends current fault or direction data;
step S302, a radio frequency ANTx interface receives corresponding data in a frequency sweeping mode, a first management module preliminarily completes the characteristic judgment of service data, and meanwhile timely deletes noise and interference attack signals;
step S303, the second management module controls the transmission processing unit to judge whether the current time is in the interrupt period, and in response to the judgment, the second management module establishes network connection and starts to be linked with the 5G base station;
step S304, the second management module sets initialization parameters of the uRLLC slicing process aiming at the real-time service and controls the transmission processing unit to complete the intermediate frequency processing and baseband processing processes of the corresponding communication protocol;
and S305, utilizing the 5G communication interface component to send data outwards, completing multiple handshaking with the opposite base station, completing confirmation of data content transmission, and ending transmission, thereby ensuring the consistency and integrity of data transmission.
Example 3: the embodiment discloses intelligent equipment, which comprises a power distribution network differential protection terminal communication module based on a 5G technology;
distribution network differential protection terminal communication module based on 5G technique includes:
the system comprises an uplink receiving and transmitting unit and a downlink receiving and transmitting unit, wherein the uplink receiving and transmitting unit is integrated with a plurality of communication modes and is used for connecting a communication network and transmitting data, and the communication modes comprise EPON optical communication and 5G communication;
the master control management unit is used for switching the communication modes of the uplink and downlink transceiving units according to the service data types, starting the corresponding data transmission flow and controlling the transmission processing unit to work; the service data types comprise real-time service data and non-real-time service data;
the transmission processing unit is used for finishing a data processing flow in a corresponding communication protocol;
and the power supply management unit is used for carrying out power supply management on the uplink and downlink transceiving unit, the master control management unit and the transmission processing unit.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (10)
1. The utility model provides a distribution network differential protection terminal communication module based on 5G technique which characterized in that includes:
the system comprises an uplink receiving and transmitting unit and a downlink receiving and transmitting unit, wherein the uplink receiving and transmitting unit is integrated with a plurality of communication modes and is used for connecting a communication network and transmitting data, and the communication modes comprise EPON optical communication and 5G communication;
the master control management unit is used for switching the communication modes of the uplink and downlink transceiving units according to the service data types, starting the corresponding data transmission flow and controlling the transmission processing unit to work; the service data types comprise real-time service data and non-real-time service data;
the transmission processing unit is used for finishing a data processing flow in a corresponding communication protocol;
and the power supply management unit is used for carrying out power supply management on the uplink and downlink transceiving unit, the master control management unit and the transmission processing unit.
2. The differential protection terminal communication module for the power distribution network based on the 5G technology as claimed in claim 1, wherein the uplink and downlink transceiving units comprise an optical communication interface component and a 5G communication interface component;
the optical communication interface component comprises an EPON optical interface module and an EPON optical interface circuit, and realizes the receiving and transmitting of various service data;
the 5G communication interface component comprises a wireless communication interface, a wireless communication interface circuit, an interface conversion circuit and a data access control circuit, and realizes the transceiving of real-time service data; the wireless communication interface comprises a radio frequency ANTx interface, a SIM interface, a PCI interface, an SPI interface, an audio interface and a data communication interface.
3. The differential protection terminal communication module of the power distribution network based on the 5G technology as claimed in claim 1 or 2, wherein the general control management unit comprises a first management module and a second management module;
the first management module is used for managing and controlling communication switching and controlling transmission task driving, and comprises the steps of determining the service type and switching the communication mode;
and the second management module is used for controlling the transmission processing unit to perform various transmission processing tasks and realizing data interactive processing.
4. The power distribution network differential protection terminal communication module based on the 5G technology as claimed in claim 1 or 2, wherein the transmission processing unit comprises a baseband data processing module, a radio frequency data processing module, a data logic module, a time synchronization data processing module and an interrupt data processing module, the baseband data processing module, the radio frequency data processing module, the data logic module, the time synchronization data processing module and the interrupt data processing module are sequentially connected, and a data processing flow in a corresponding communication protocol is completed according to the control of the master control management unit.
5. The differential protection terminal communication module for the power distribution network based on the 5G technology as claimed in claim 1, 2 or 3, wherein the power management unit comprises a first power management module and a second power management module;
the first power management module comprises an optical module power panel, an optical module power interface and an optical module power control unit, wherein the optical module power panel, the optical module power interface and the optical module power control unit are sequentially connected to supply power for EPON optical communication;
the second power management module comprises a wireless module power panel, a wireless module power interface and a wireless module power control unit, and the wireless module power panel, the wireless module power interface and the wireless module power control unit are sequentially connected to supply power for 5G communication.
6. The differential protection terminal communication module for the power distribution network based on the 5G technology as claimed in any one of claims 1 to 5, further comprising an isolation component for isolating power supply, interface and data control.
7. A power distribution network differential protection terminal communication method based on a 5G technology is characterized by comprising the following steps:
the master control management unit determines the type of the service data to be transmitted, acquires a transmission starting instruction, selects and switches a communication mode, controls the actions of the uplink and downlink transceiving units and the transmission processing unit, and starts a corresponding data transmission flow; the service types comprise real-time service data and non-real-time service data;
the uplink and downlink transceiving unit and the transmission processing unit execute a service data transmission process.
8. The power distribution network differential protection terminal communication method based on the 5G technology as claimed in claim 7, wherein the master control management unit determines the type of the service data to be transmitted, obtains a transmission start instruction, and selects and switches the communication mode, including:
filtering the service data to be transmitted, and defaulting the service data to be real-time service data;
resetting the real-time service, acquiring a transmission starting instruction, switching and starting a 5G communication data transmission flow;
judging whether the formats of the service data messages are consistent, if so, keeping connection, if not, resetting the non-real-time service, switching and starting an EPON optical communication data transmission process according to a transmission starting instruction
And judging whether the formats of the service data messages are consistent, if so, keeping the connection, and if not, resetting the real-time service, acquiring a transmission starting instruction, switching and starting a 5G communication data transmission flow.
9. The power distribution network differential protection terminal communication method based on the 5G technology, according to claim 8, wherein if differential protection service data is transmitted, the specific transmission control process includes:
the end side of the differential protection device sends current fault or direction data;
the radio frequency ANTx interface receives corresponding data in a frequency sweeping mode, the first management module preliminarily completes the characteristic judgment of the service data and simultaneously deletes noise and interference attack signals in time;
the second management module controls the transmission processing unit to judge whether the current time is in the interrupt period, and in response to the judgment, the second management module establishes network connection and starts to be linked with the 5G base station;
the second management module sets initialization parameters of a uRLLC slicing process aiming at the real-time service and controls the transmission processing unit to complete the intermediate frequency processing and baseband processing processes of the corresponding communication protocol;
and the 5G communication interface component is utilized to send data outwards, and multiple handshaking is completed between the data and the opposite base station at the same time, so that the confirmation of data content transmission is completed, and the transmission is finished, thereby ensuring the consistency and the integrity of data transmission.
10. The intelligent equipment is characterized by comprising a power distribution network differential protection terminal communication module based on a 5G technology;
distribution network differential protection terminal communication module based on 5G technique includes:
the system comprises an uplink receiving and transmitting unit and a downlink receiving and transmitting unit, wherein the uplink receiving and transmitting unit is integrated with a plurality of communication modes and is used for connecting a communication network and transmitting data, and the communication modes comprise EPON optical communication and 5G communication;
the master control management unit is used for switching the communication modes of the uplink and downlink transceiving units according to the service data types, starting the corresponding data transmission flow and controlling the transmission processing unit to work; the service data types comprise real-time service data and non-real-time service data;
the transmission processing unit is used for finishing a data processing flow in a corresponding communication protocol;
and the power supply management unit is used for carrying out power supply management on the uplink and downlink transceiving unit, the master control management unit and the transmission processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111016071.7A CN113853033B (en) | 2021-08-31 | 2021-08-31 | Power distribution network differential protection terminal communication module and communication method based on 5G technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111016071.7A CN113853033B (en) | 2021-08-31 | 2021-08-31 | Power distribution network differential protection terminal communication module and communication method based on 5G technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113853033A true CN113853033A (en) | 2021-12-28 |
| CN113853033B CN113853033B (en) | 2024-03-26 |
Family
ID=78976751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111016071.7A Active CN113853033B (en) | 2021-08-31 | 2021-08-31 | Power distribution network differential protection terminal communication module and communication method based on 5G technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113853033B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114430583A (en) * | 2021-12-30 | 2022-05-03 | 国网电力科学研究院有限公司 | Electric power 5G communication module and adaptive power consumption control method applicable to same |
| CN115623554A (en) * | 2022-07-08 | 2023-01-17 | 国网新疆电力有限公司电力科学研究院 | Debugging and testing terminal communication module, equipment and method based on wireless communication technology |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020116092A1 (en) * | 2001-02-09 | 2002-08-22 | Koichi Hamamatsu | System for protecting and controlling substation main circuit components |
| CN206412838U (en) * | 2017-01-24 | 2017-08-15 | 国网新疆电力公司昌吉供电公司 | Distribution automation system based on dual mode communication |
| CN109103859A (en) * | 2018-10-24 | 2018-12-28 | 云南电网有限责任公司电力科学研究院 | A kind of distribution differential protection measure and control device for supporting 4G to communicate |
| CN111030066A (en) * | 2019-12-18 | 2020-04-17 | 南京国电南自电网自动化有限公司 | Line differential protection method based on switching of optical fiber channel and wireless channel |
| CN112260221A (en) * | 2020-10-21 | 2021-01-22 | 石家庄科林电气股份有限公司 | 5G-optical fiber differential protection data conversion device and method with stable time delay |
| CN112272387A (en) * | 2020-09-22 | 2021-01-26 | 国电南瑞科技股份有限公司 | Low-scheduling time delay and high-speed access method, module, terminal and power secondary equipment based on 5G |
| CN112333717A (en) * | 2020-11-13 | 2021-02-05 | 国网安徽省电力有限公司信息通信分公司 | 5G access network slice resource allocation method and device considering power multi-service requirements |
-
2021
- 2021-08-31 CN CN202111016071.7A patent/CN113853033B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020116092A1 (en) * | 2001-02-09 | 2002-08-22 | Koichi Hamamatsu | System for protecting and controlling substation main circuit components |
| CN206412838U (en) * | 2017-01-24 | 2017-08-15 | 国网新疆电力公司昌吉供电公司 | Distribution automation system based on dual mode communication |
| CN109103859A (en) * | 2018-10-24 | 2018-12-28 | 云南电网有限责任公司电力科学研究院 | A kind of distribution differential protection measure and control device for supporting 4G to communicate |
| CN111030066A (en) * | 2019-12-18 | 2020-04-17 | 南京国电南自电网自动化有限公司 | Line differential protection method based on switching of optical fiber channel and wireless channel |
| CN112272387A (en) * | 2020-09-22 | 2021-01-26 | 国电南瑞科技股份有限公司 | Low-scheduling time delay and high-speed access method, module, terminal and power secondary equipment based on 5G |
| CN112260221A (en) * | 2020-10-21 | 2021-01-22 | 石家庄科林电气股份有限公司 | 5G-optical fiber differential protection data conversion device and method with stable time delay |
| CN112333717A (en) * | 2020-11-13 | 2021-02-05 | 国网安徽省电力有限公司信息通信分公司 | 5G access network slice resource allocation method and device considering power multi-service requirements |
Non-Patent Citations (3)
| Title |
|---|
| FAN HAOYAN等: "Research on Distribution Line Protection Device Based on 5G/AD Hoc Network Wireless Communication Technology", 2021 IEEE INTERNATIONAL CONFERENCE ON POWER ELECTRONICS, COMPUTER APPLICATIONS (ICPECA) * |
| 李浩良;骆潘钿;魏征;: "基于4G网络的配电网远程监控系统", 电世界, no. 12 * |
| 胡光宇;张影;孔为为;于佳;: "5G环境下差动保护在电力系统中的应用", 山东电力技术, no. 06 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114430583A (en) * | 2021-12-30 | 2022-05-03 | 国网电力科学研究院有限公司 | Electric power 5G communication module and adaptive power consumption control method applicable to same |
| CN114430583B (en) * | 2021-12-30 | 2023-08-11 | 国网电力科学研究院有限公司 | Electric power 5G communication module and adaptive power consumption control method applicable to same |
| CN115623554A (en) * | 2022-07-08 | 2023-01-17 | 国网新疆电力有限公司电力科学研究院 | Debugging and testing terminal communication module, equipment and method based on wireless communication technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113853033B (en) | 2024-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109660958B (en) | Networking method of electric power meter reading system and meter reading method | |
| CN105871466B (en) | Wide-area stable communication device and method with intelligent identification function | |
| CN113853033B (en) | Power distribution network differential protection terminal communication module and communication method based on 5G technology | |
| CN107886696B (en) | Method for realizing meter reading by connecting wireless signal blind area nodes | |
| CN102684904B (en) | The system and method for dynamic management power in communication system | |
| CN102832973B (en) | Network accessing method of automatic meter reading system | |
| CN109378898A (en) | A kind of distribute-electricity transformer district Intelligentized regulating and controlling system and regulation method | |
| CN116013055A (en) | Test method for realizing rapid reading of electric energy meter based on HPLC (high Performance liquid chromatography) and HRF (high performance liquid chromatography) dual-mode communication technology | |
| CN216751793U (en) | Multifunctional multi-protocol intelligent gateway | |
| CN115190378A (en) | Data acquisition terminal based on WI-SUN communication mode | |
| CN114143899B (en) | Channel access method of broadband carrier network | |
| CN107517210B (en) | Multi-interface protocol self-adaptive conversion power distribution network wireless communication device | |
| CN110676818B (en) | In-situ bus protection method and system based on star network topology | |
| CN113644936A (en) | Three-phase parallel communication method of broadband carrier communication network | |
| CN111884679B (en) | Carrier channel data transmission distributed management system based on medium-voltage line | |
| CN116939896A (en) | 230MHz remote communication module and method suitable for intelligent energy unit | |
| CN109861872B (en) | Power distribution communication network architecture for improving service quality | |
| CN101815019B (en) | Information transmission device | |
| CN105281821A (en) | Satellite channel intelligent switching method and system | |
| CN111954156B (en) | Communication method and communication system for integrating 5G communication and power line | |
| CN114726104A (en) | Intelligent distributed feeder automation implementation method based on 5G communication | |
| CN109150592B (en) | System of LTE-D2D wireless private network | |
| CN220673947U (en) | 230MHz remote communication module suitable for wisdom energy unit | |
| CN110994550A (en) | Regional protection system based on 5G edge computing technology | |
| CN214481277U (en) | Multimode easily-expanded intelligent home repeater system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |