CN111538303A - Electric power wireless universal communication terminal extension system - Google Patents
Electric power wireless universal communication terminal extension system Download PDFInfo
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- CN111538303A CN111538303A CN202010392192.0A CN202010392192A CN111538303A CN 111538303 A CN111538303 A CN 111538303A CN 202010392192 A CN202010392192 A CN 202010392192A CN 111538303 A CN111538303 A CN 111538303A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33139—Design of industrial communication system with expert system
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Abstract
An electric power wireless universal communication terminal extension system comprises a CPE, a CPEL, a communication terminal and a time service terminal. The CPE is placed outdoors in a place with good signals, high-speed wireless access is achieved, and time synchronization is conducted from an NR network or a satellite. The indoor CPEL is connected with the photoelectric composite armored cable, and an independent CPEL is used for supplying power to the CPE by using safe voltage. The CPEL and the CPE use a standard communication protocol, are connected by using a PON network and an optical fiber Ethernet, and are subjected to time synchronization by the PON network through equal time slot or IEEE 1588. When time setting is removed, the CPEL is an independent device, and other CPELs can be used as independent devices and can also be secondary equipment embedded modules. The independent CPEL is communicated with the secondary equipment, and has different protocol access capabilities. And the CPEL is used for time service for the secondary equipment through the B code and the IEEE 1588 or NTP. The CPEL is used to transfer the CPE to the secondary equipment, filling in gaps in the communication and power fields. A solution method is provided for stock equipment modification and new equipment access, the efficiency of newly building power grid modification can be effectively improved, and secondary equipment interconnection is realized.
Description
Technical Field
The disclosure relates to the technical field of power communication, and relates to a technology for accessing a power secondary device and a wireless access network.
Background
The smart grid concept has been proposed fairly well in the new century and has gained wide acceptance worldwide. The development of the smart grid becomes an important consensus on ensuring energy safety, coping with climate change, protecting natural environment and realizing sustainable development. The power communication network is used as an important infrastructure for supporting the development of the smart power grid, and the requirements on safety, instantaneity, accuracy and reliability of various power services are met. The electric power wireless communication technology is mainly used for solving the services of metering automation, distribution network automation access, wireless video monitoring, mobile inspection, low-voltage first-aid repair, vehicle monitoring, automobile charging pile and the like.
Prior art document 1 (wanhao et al, power communication dedicated communication terminal [ P ]. CN103812710A,2014-05-21.) discloses a power communication main network and distribution network communication network networking topology and a power communication dedicated communication terminal used by the same, wherein the power communication dedicated communication terminal is arranged in a power distribution room, and is used for accessing power distribution automation service data of a DTU terminal (data terminal Unit, DTU for short) and transmitting the data to a power distribution automation main station. With the development of smart power grids, the demands for mass data transmission, interconnection of everything information, reliability of power systems, flexible response and cooperative control, and guarantee of battery life appear. It is difficult for the existing communication network networking topology represented by the prior art document 1 and the power communication exclusive communication terminal used therefor to satisfy these demands.
The 5G technology has the advantages of deep coverage, ultralow power consumption, ultrahigh reliability, high safety, extreme user mobility, lower cost, deep perception and high capacity, so that the wireless technology is suitable for power transmission line polling, fault removal, safety and stability control and other power data acquisition scenes with low time delay, large bandwidth and high concurrence.
The 5G technology is applied to electric power increasingly and deeply, and runs through various links of power generation, transmission, transformation, distribution and utilization. The 5G technology is used for connecting the power secondary equipment, and the universal interconnection is realized, so that the technical development direction is formed. Meanwhile, the requirements of power communication in the aspects of encryption, equipment authentication, time service and the like are met, and the solution of inventory and the networking of newly-added equipment becomes a 5G research focus. The communication requirements of non-production control services such as an intelligent power distribution room and new energy access on a 5G network are different, the CPE is isolated from a service layer, and a CPE evolution target architecture and a function list oriented to full-service ubiquitous access need to be formulated.
Disclosure of Invention
The invention aims to construct a set of electric power wireless universal communication terminal expansion system, and realize the plug and play of the CPE through the standardized interface of the CPE and the CPEL specification; the CPEL is connected with the power secondary equipment through protocol switching, and different protocols are oriented to power terminals.
The invention adopts the following technical scheme.
The utility model provides an electric power wireless general communication terminal extension system, includes CPE, CPEL and electric power secondary equipment, CPE installs outdoors, is connected with the CPEL who installs indoors through the compound armor cable of photoelectricity, and CPEL is connected with electric power secondary equipment through serial ports or ethernet, and CPE is used for the receiving and dispatching of radio signal to obtain the time service through network or satellite, be provided with DC power supply in at least one CPEL, supply power for CPE through the compound armor cable of photoelectricity.
Preferably, the optical-electrical composite armored cable at least comprises a power line and a PON port optical fiber, the CPEL is provided with a PON port, and the CPE and the CPEL are connected by using the optical splitter to construct a PON network.
Preferably, the CPE time-feeds the CPEL by equally dividing the time slots and the time slot labels.
Preferably, the optical-electrical composite armored cable at least comprises a power line and an Ethernet optical fiber, the CPEL is provided with an optical fiber Ethernet port, and the CPE is connected with the CPEL by using the optical fiber Ethernet.
Preferably, the CPE provides time to the CPEL via at least one of IEEE 1588 or NTP.
Preferably, the CPEL includes at least one of RS232, RS485, ethernet communication interface board, B code or IEEE 1588 time-tick output board.
Preferably, the CPEL gives time to the power secondary device by at least one of B code, IEEE 1588, and NTP.
Preferably, at least one of the CPELs uses an uninterruptible power supply to power the CPE via the opto-electric composite armor cable.
Preferably, the CPELs include embedded CPELs that are independent CPELs and embedded power secondary devices, at least one independent CPEL supplies power to the CPEs, and at least one independent CPEL provides time to the power secondary devices.
The invention has the beneficial effect that compared with the prior art, the electric power wireless universal communication terminal expansion system provided by the embodiment of the disclosure. The wireless universal communication terminal is applied to the power field, the CPEL and the CPE use standard communication protocols, switching between the CPE and the power secondary equipment is carried out through the CPEL, gullies in the communication field and the power field are filled, and the efficiency of newly building a power grid is effectively improved. The communication bandwidth and reliability can be effectively improved by the external arrangement of the CPE. The CPEL is connected with the CPE through the photoelectric composite armored cable, a standard Ethernet or PON network is used, and meanwhile, a UPS power supply is provided for the CPE. The CPEL is connected with a variety of secondary equipment protocols at the lower part, and meets the requirements of power communication in the aspects of encryption, equipment authentication, time service and the like at the upper part. A set of secondary equipment and a complete wireless communication access mode is established, and engineering construction is simplified.
Drawings
Fig. 1 shows a diagram of an electric power wireless universal communication terminal extension system;
fig. 2 shows a CPE and a CPE connection signal diagram;
FIG. 3 shows a plug-in layout of a CPEL;
fig. 4 shows a cross-sectional view of the optical-electrical composite armored fiber and power composite cable.
The reference signs are: 1: CPE, 2: CPEL, 3: electric power secondary equipment, 4: photoelectric composite armored cable, 5: beam splitter, 6: power supply line, 7: PON port optical fiber, 8: ethernet fiber, 9: and (4) filling materials.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.
As shown in fig. 1, the power wireless universal communication terminal extension system includes: CPE1, CPEL2, and power secondary equipment 3. It is noted that, unless otherwise noted, the number of CPEs 1, CPELs 2, and power secondary devices 3 is not limited, and one skilled in the art can practice the invention with any number of CPEs 1, any number of CPELs 2, and any number of power secondary devices 3, as desired.
The CPE1 is placed in the place where the outdoor signal is good, is used for high-speed wireless signal receiving and dispatching, and CPE1 is external, can effectively promote communication bandwidth and reliability. The time service is obtained through an NR network or a satellite signal, and the time synchronization precision does not exceed a first threshold value, and the first threshold value can be 1 mu s preferably.
Fig. 2 shows a schematic diagram of signals connecting CPE1 and CPEL2, CPEL2 is placed indoors, and CPEL2 is connected to CPE1 placed outdoors, preferably, but not limited to, connecting CPE1 and CPEL2 using optical-electrical composite armored cable 4. The photoelectric composite armored cable 4 at least comprises a power line 6 and a PON port optical fiber 7 or an Ethernet optical fiber 8, and the CPEL2 is provided with a PON port or an optical fiber Ethernet port. The CPEL2 switches the CPE1 to the power secondary equipment 3, filling gaps in the communication field and the power field. A solution method is provided for stock equipment modification and new equipment access, the efficiency of newly building power grid modification can be effectively improved, and secondary equipment interconnection is realized.
It is noted that the CPEL2 of the present invention can be implemented in the form of a switch, or in the form of a custom plug-in.
The CPELs 2 include independent CPEL2 and embedded CPEL2, and at least one independent CPEL2 is provided with a dc power supply for supplying power to the CPE1, which may be of any type, preferably but not limited to, a UPS power supply for supplying a safe operating voltage, such as a safe 24V dc voltage, to the CPE 1. At least one independent CPEL2 arranged indoors supplies power for CPE1 arranged outdoors through the photoelectric composite armored cable 4, and the risk of exposed wires is effectively solved. The embedded CPEL2 is embedded in the power secondary device 3 as a secondary device embedded module.
It is clear to those skilled in the art that the provision of a dc power supply in at least one of the individual CPELs 2 is only an exemplary embodiment, and the provision of a dc power supply in a plurality of individual CPELs 2 provides redundancy of power supply and increased safety, and is also within the scope of the present invention.
The CPE1 and the CPEL2 may use the optical splitter 5 to construct a PON network connection, or directly connect through an optical fiber ethernet, so that the PON network has high optical fiber signal reliability, simple engineering construction and deployment, and a large number of CPELs 2 are mounted. The PON networks have wavelength division multiplexing, and the uplink and downlink wavelengths are different. CPE1 time-clocks CPEL2 by equally dividing the time slots and time slot labels.
The CPE1 and the CPEL2 may also be connected by using a standard fiber ethernet, and the CPEL2 may also be a common switch when accurate time service is obtained through IEEE 1588 or NTP time service is obtained.
Fig. 3 shows a plug-in layout diagram of CPEL 2. In the preferred embodiment of the present invention, separate plug-ins are used to implement different functional modules, and it is clear to those skilled in the art that the modules in the present embodiment are only illustrated as separate plug-ins, and the actual modules and plug-ins are not coupled. The CPEL2 interface is a PON interface or an optical fiber ethernet interface, and when the PON network connection is established between the CPE1 and the CPEL2, the PON interface is used for the CPEL2, and when the standard optical fiber ethernet connection is established between the CPE1 and the CPEL2, the optical fiber ethernet interface is used for the CPEL 3538. Preferably, but not limited to, CPEL2 is connected to CPE1 via a fiber ethernet port using 100M fiber ethernet.
The external interface is a plug-in connected with the power secondary equipment 3, preferably but not limited to RS232, RS485, an ethernet communication interface board, a B code or IEEE 1588 time-setting output board. The independent CPEL2 and the secondary equipment are communicated through RS232, RS485, Ethernet and the like, and have different protocol access capabilities. And meanwhile, the secondary equipment is timed through the B code, the IEEE 1588 or the NTP.
The CPEL2 has access to a wide variety of secondary device protocols, and meets the requirements of power communication in encryption, device authentication, time service and the like. A set of secondary equipment and a complete wireless communication access mode is established, and engineering construction is simplified.
Fig. 4 shows a cross-sectional view of an optical-electrical composite armored fiber and power composite cable. The embodiment uses a 1-square copper wire as the power line 6 without limitation, the optical fiber is divided into a PON port single-mode fiber and an ethernet multi-mode fiber, and the composite cable has a lightning protection isolation function.
It is clear to those skilled in the art that the electric power secondary equipment 3 in the present invention refers to equipment in the secondary system, and includes, but is not limited to, at least, equipment for measurement, protection, control, communication, and scheduling automation in the electric power system.
The preferred embodiment of the present invention further provides a communication method of an electric power wireless universal communication terminal extension system, including the following steps:
step 2, the CPEL2 communicates with the CPE1 using at least one of a PON network or a standard fiber ethernet network, and transmits data of the power secondary equipment 3 to the CPE 1;
The preferred embodiment of the invention also provides a time service method of the power wireless universal communication terminal extension system, which comprises the following steps:
step 2, CPE1 and CPEL2 are connected via PON network, and time is given to CPEL2 by equally dividing time slot and time slot label, or
The CPE1 is connected with the CPEL2 through a standard optical fiber Ethernet, and time is given to the CPEL2 through IEEE 1588 or NTP;
in step 3, the CPEL2 gives time to the power secondary device 3 by the B code, IEEE 1588, or NTP.
CPE: a universal communication terminal, client premix Equipment;
CPEL: a universal communication terminal extension node, client premix Equipment Leaf;
UPS: an Uninterruptible Power supply, Uninterruptible Power System;
NR: new air interface, New Radio;
PON: passive Optical networks, Passive Optical networks;
NTP: network Time Protocol, Network Time Protocol;
IEEE 1588: precision Time Protocol, PTP for short;
DTU: a Data Terminal Unit, a Data Terminal Unit;
b code: the time code B is shown in GJB 2991A-2008 'B time code interface terminal general Specification';
RS-232 and RS-485: the interface standard for serial data communication is established by the Electronic Industries Association (EIA).
The invention has the beneficial effect that compared with the prior art, the electric power wireless universal communication terminal expansion system provided by the embodiment of the disclosure. The wireless universal communication terminal is applied to the power field, the CPEL2 and the CPE1 use a standard communication protocol, the CPEL2 is used for switching between the CPE1 and the power secondary equipment 3, gullies in the communication field and the power field are filled, and the efficiency of newly building a power grid is effectively improved. The external arrangement of the CPE1 can effectively improve the communication bandwidth and reliability. The CPEL2 is connected to the CPE1 via the opto-electrical composite armored cable 4, using a standard ethernet or PON network, while providing UPS power to the CPE 1. The CPEL2 has access to a wide variety of secondary device protocols, and meets the requirements of power communication in encryption, device authentication, time service and the like. And a set of secondary equipment and a complete wireless communication access mode is established, so that the engineering construction is simplified.
The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.
Claims (9)
1. An electric power wireless universal communication terminal extension system including a CPE, a CPEL and an electric power secondary device,
the CPE is arranged outdoors and is connected with the CPEL arranged indoors through a photoelectric composite armored cable, the CPEL is connected with the power secondary equipment through a serial port or an Ethernet,
the CPE is used for receiving and transmitting wireless signals and obtaining time service through a network or a satellite, and a direct current power supply is arranged in at least one CPEL and supplies power to the CPE through a photoelectric composite armored cable.
2. The power wireless universal communication terminal extension system according to claim 1,
the photoelectric composite armored cable at least comprises a power line and a PON port optical fiber, the CPEL is provided with a PON port, and the CPE and the CPEL are connected by using the optical splitter to construct a PON network.
3. The power wireless universal communication terminal extension system according to claim 2,
the CPE time-signals the CPEL by equally dividing the time slots and the time slot labels.
4. The power wireless universal communication terminal extension system according to claim 1,
the photoelectric composite armored cable at least comprises a power line and an Ethernet optical fiber, the CPEL is provided with an optical fiber Ethernet port, and the CPE is connected with the CPEL by using the optical fiber Ethernet.
5. The power wireless universal communication terminal extension system according to claim 4,
the CPE transmits time to the CPEL through at least one of IEEE 1588 or NTP.
6. The power wireless universal communication terminal extension system according to any one of claims 1-5,
the CPEL comprises at least one of RS232, RS485, an Ethernet communication interface board and a B code or IEEE 1588 time-setting output board.
7. The power wireless universal communication terminal extension system according to claim 6,
the CPEL gives time to the power secondary device by at least one of B code, IEEE 1588, and NTP.
8. The power wireless universal communication terminal extension system according to any one of claims 1-5,
at least one CPEL uses an uninterruptible power supply to supply power to the CPE through the photoelectric composite armored cable.
9. The power wireless universal communication terminal extension system according to any one of claims 1-5,
the CPELs comprise embedded CPELs which are independent CPELs and embedded power secondary equipment, at least one independent CPEL supplies power to the CPE, and at least one independent CPEL gives time to the power secondary equipment.
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| CN202010392192.0A CN111538303A (en) | 2020-05-11 | 2020-05-11 | Electric power wireless universal communication terminal extension system |
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Cited By (5)
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| CN112492679A (en) * | 2020-10-23 | 2021-03-12 | 许继集团有限公司 | Method and system for generating B code time synchronization output by using 5G communication terminal |
| CN114089711A (en) * | 2022-01-21 | 2022-02-25 | 深圳艾灵网络有限公司 | Industrial equipment control management method, electronic equipment and storage medium |
| CN114865797A (en) * | 2022-07-05 | 2022-08-05 | 湖南湘联电缆有限公司 | Power supply communication detects integration distribution device |
| WO2022242349A1 (en) * | 2021-05-20 | 2022-11-24 | 中兴通讯股份有限公司 | Time signal compensation method, wireless time signal terminal, electronic device, and storage medium |
| CN115884352A (en) * | 2022-09-20 | 2023-03-31 | 成都飞机工业（集团）有限责任公司 | Synchronous time service and data transmission method for wireless network acquisition system |
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