Content of the invention
It is an object of the invention to provide a kind of power information harvester and system, to improve prior art for overcoming shiftingThe higher problem of dynamic network signal coverage is not enough and runs into construction complexity.
A kind of power information harvester, including：Terminal device, local repeater and remote repeater：Described terminal setsStandby it is connected with described local repeater；Described local repeater is also entered by power carrier communication technology with described remote repeaterRow communication；Described remote repeater is additionally operable to be communicated with power distribution automation main station by mobile communications network；Described long-rangeThe mobile communications network signal strength signal intensity of repeater present position disclosure satisfy that by described mobile communications network with described distribution certainlyThe requirement that Dong Hua main website is communicated；
Described terminal device is used for gathering power information；Described local repeater and described remote repeater are used to defeatedEnter signal to carry out respective type conversion process and carry out relay forwarding so that described power information can by described local inThe device that continues utilizes described power carrier communication technical transmission to described remote repeater and by described remote repeater by described shiftingDynamic communication network sends to described power distribution automation main station, or makes described power distribution automation main station by described mobile communicationThe data that network sends can by described remote repeater utilize described power carrier communication technical transmission to described locally inContinue device and by described local repeater transmission to described terminal device.
Wherein in an embodiment, described terminal device is connected by Ethernet with described local repeater.
Wherein in an embodiment, described local repeater includes ethernet communication module, the first control being sequentially connectedDevice processed and the first power carrier communication module；
Described ethernet communication module is used for being communicated using Ethernet with described terminal device；Described first controllerSignal for transmitting described ethernet communication module is converted to the letter being suitable to that described first power carrier communication module receivesNumber, or the signal that described first power carrier communication module is transmitted is converted to and is suitable to what described ethernet communication module receivedSignal；Described first power carrier communication module is used for carrying out using described power carrier communication technology with described remote repeaterCommunication.
Wherein in an embodiment, described local repeater also includes the first termination power；Described first termination powerOne end be connected with described first power carrier communication module, the other end of described first termination power pass through power line with describedRemote repeater connects.
Wherein in an embodiment, the second power carrier communication module that described remote repeater includes being sequentially connected,Second controller and mobile communications network module；
Described second power carrier communication module is used for utilizing described power carrier communication technology with described local repeaterCommunicated；Described second controller be used for signal that described second power carrier communication module is transmitted be converted to be suitable to describedThe signal that mobile communications network module receives, or the signal that described mobile communications network module is transmitted be converted to be suitable to describedThe signal that second power carrier communication module receives；Described mobile communications network module be used for by described mobile communications network withDescribed power distribution automation main station is communicated.
Wherein in an embodiment, described remote repeater also includes movable signal detection module；Described movable signalDetection module is connected with described second controller, and described movable signal detection module is used for detecting residing for described remote repeaterThe mobile communications network signal strength signal intensity of position.
Wherein in an embodiment, described remote repeater also includes display module；Described display module and described theTwo controllers connect, and for showing the mobile communications network signal strength signal intensity that described movable signal detection module detects.
Wherein in an embodiment, described remote repeater also includes the second termination power；Described second termination powerOne end be connected with described second power carrier communication module, the other end of described second termination power pass through power line with describedLocal repeater connects.
Wherein in an embodiment, described mobile communications network is GPRS network.
A kind of power information acquisition system, including power distribution automation main station and above-mentioned power information harvester；Described joinElectric automation main website is communicated by mobile communications network with described power information harvester.
In the present invention, power carrier communication technology (i.e. PLC, Power are utilized between local repeater and remote repeaterLine Communication) set up repeated link, therefore it is in mobile communications network signal strength signal intensity in terminal device weaker veryTo in the case of do not have the region of mobile communications network signal, the power information of terminal device collection can pass through above-mentioned relaying chainRoad is transmitted to remote repeater, because the mobile communications network signal strength signal intensity of remote repeater present position disclosure satisfy that by movingThe requirement that dynamic communication network is communicated with power distribution automation main station, therefore can utilize mobile radio communication by remote repeaterNetwork sends corresponding power information to power distribution automation main station, thus overcoming mobile communications network signal to cover not enough lackingFall into.Further, since PLC technology is a kind of communication technology being carried out data transmission by power circuit, and terminal device is required toIt is powered by electrical network, between the local repeater therefore in the present invention and remote repeater, directly pass through existing power lineRow data communication can be entered, thus effectively evaded and drawing feeder line, change the complicated operation bidirectional such as high-gain aerial, reduce and applyWork complexity.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, rightThe present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, andIt is not used in the restriction present invention.
Unless otherwise defined, the skill of all of technology used herein and scientific terminology and the technical field belonging to inventionThe implication that art personnel are generally understood that is identical.Term used in the description in invention is intended merely to description specifically hereinThe purpose of embodiment is it is not intended that limit the present invention.Term as used herein "and/or" includes the institute of one or more correlationsThe arbitrary and all of combination of list of items.
The purpose of the embodiment of the present invention be to provide a kind of to solve mobile communications network signal cover not enoughUnder the premise of can also reduce construction complexity power information acquisition system, that is, pass through increase a PLC repeated link, make big customerThe terminal devices such as negative control terminal, resident's power information acquisition terminal can be normal through mobile communications network up transmission numberAccording to thus improving success rate and the integrality of electric company's information gathering.Below in conjunction with the accompanying drawings, the present invention is made furtherBright.
As shown in figure 1, an embodiment provides a kind of power information acquisition system, including power information harvester 100With power distribution automation main station 200.Wherein, power distribution automation main station 200 is the core of electrical power distribution automatization system, main realizationElectric distribution network data collection and the expanded function such as the basic functions such as monitoring and Topology Analysis of Power Distribution Network application.Power information collection dressPut 100 and be arranged in terminal device 110 side, and communicated by mobile communications network with power distribution automation main station 200.Electricity consumptionInformation collecting device 100 is used for the power information of acquisition terminal equipment 110, and passes through PLC repeated link and mobile communications networkTransmit to power distribution automation main station 200.Wherein, mobile communications network is, for example, GPRS network, LTE (Long TermEvolution, Long Term Evolution) network, CDMA (Code Division Multiple Access, CDMA) network or itsIts type.
Power information harvester 100 includes terminal device 110, local repeater 120 and remote repeater 130.Wherein,Terminal device 110 is used for gathering power information, and it can be big customer's negative control terminal, resident's power information acquisition terminalDeng.Terminal device 110 is connected with local repeater 120.Specifically, terminal device 110 and local repeater 120 pass through EthernetConnect.It is understood that can also be using other connected modes between terminal device 110 and local repeater 120.
Local repeater 120 is also communicated by power carrier communication technology with remote repeater 130.Therefore, locallyRepeater 120 and remote repeater 130 constitute above-mentioned PLC repeated link.Remote repeater 130 is additionally operable to by mobile logicalCommunication network is communicated with power distribution automation main station 200.Therefore, in terminal device 110, local repeater 120, remote repeater130th, a complete data transmission link can be set up between power distribution automation main station 200.Meanwhile, remote repeater 130 instituteThe mobile communications network signal strength signal intensity of place position disclosure satisfy that is led to power distribution automation main station 200 by mobile communications networkThe requirement of letter. in other words, the mobile communications network signal strength signal intensity of remote repeater 130 present position is more than given threshold, to protectCard remote repeater 130 can carry out proper communication with power distribution automation main station 200 by mobile communications network.
Wherein, power carrier communication technology, i.e. PLC technology, is a kind of communication skill being carried out data transmission by power lineArt, it is by the use of existing electrical network as the Transfer Medium of signal so that electrical network can also carry out data while transmitting electric powerCommunication.Power carrier communication technology plug and play, substantially increases production, work and life efficiency, saves to a great extentCable wiring manufacture cost, as long as all this technology can be used using the equipment of electric power, and also reliable and stable.Further, since terminal setsStandby 110 communication speed is higher, and therefore power carrier communication technology adopts the bandwidth carrier technology of high speed, illustratively：Using 1～The carrier frequency of 30MHz, transfer rate, between 1～200Mbps, adopts ripe DMT (Discrete Multi- simultaneouslyTone, discrete multitone, DMT) modulation system is such that it is able to avoid the occurrence of the communication blocking problem that single carrier wave may be disturbed.
In addition, local repeater 120 and remote repeater 130 are used to carry out respective type conversion process to input signalAnd carry out relay forwarding, so that power information can utilize power carrier communication technical transmission extremely by local repeater 120Remote repeater 130 is simultaneously sent to power distribution automation main station 200 by mobile communications network by remote repeater 130, that is, completeData feedback channel data is transmitted, or power distribution automation main station 200 is passed through by the data that mobile communications network sendsRemote repeater 130 is transmitted to end to local repeater 120 and by local repeater 120 using power carrier communication technical transmissionEnd equipment 110, that is, complete down going channel data transfer.In other words, local repeater 120 and the respective work of remote repeater 130With being exactly that the signal receiving respective input is converted to the signal that the object being connected with output end can receive, thus ensureing wholeIndividual data transmission link being capable of normal transmission data.
Specifically, in data feedback channel data transmitting procedure, the ether that terminal device 110 is transmitted by local repeater 120Network data signal is converted to plc data signal, and the plc data signal after conversion is sent to remote repeater by power line130.Afterwards, by this, the plc data signal after changing is reconverted into the letter being suitable to mobile communications network transmission to remote repeater 130Number (for example, GPRS signal), then the signal after conversion is wirelessly transmitted to power distribution automation main station by mobile communications network200, so far, local repeater 120 and remote repeater 130 complete the data relay forwarding of data feedback channel jointly.
In down going channel data transmission procedure, power distribution automation main station 200 passes through mobile communications network to remote trunkDevice 130 sends mobile communications network signal (such as GPRS signal), and this mobile communications network signal is changed by remote repeater 130For plc data signal, and the plc data signal after conversion is sent to local repeater 120 by power line.In local afterwardsPlc data signal after this is changed by device 120 again is converted to corresponding Ethernet data signal, and ether after changing by thisTo terminal device 110, so far, local repeater 120 and remote repeater 130 complete descending logical network data signal return jointlyThe data relay forwarding in road.
Therefore, because the power information acquisition system that the present embodiment provides, poor in mobile communications network signal strength signal intensityA repeated link is established (i.e. by local repeater 120 between region and the stronger region of mobile communications network signal strength signal intensityThe PLC transmission link constituting with remote repeater 130), therefore in the mobile communications network signal of terminal device 110 present positionIn the case that intensity is poor or this position do not have mobile communications network signal, power information can be passed through by terminal device 110Local repeater 120 is sent to remote repeater 130, due to the mobile communications network signal of remote repeater 130 present positionIntensity disclosure satisfy that the requirement being communicated by mobile communications network, therefore remote repeater with power distribution automation main station 200Power information finally can be uploaded to power distribution automation main station 200 by 130, thus solving mobile communications network to cover deficiencyProblem is so that be located at that mobile communications network signal strength signal intensity is weaker or the terminal device in region that do not have mobile communications network signal110, remain able to keep the normal transmission of data with power distribution automation main station 200, also relieve simultaneously and terminal device 110 is pacifiedThe scope restrictive condition of holding position is such that it is able to the more preferable integrated planning scheme that must follow electric company.
In addition, in the above-mentioned power information acquisition system that the present embodiment provides, local repeater 120 and terminal deviceCommunication line between 110 is the movement being communicated between Ethernet, remote repeater 130 and power distribution automation main station 200Communication network, is the network that original system possesses, and because terminal device 110 is required to be powered by electrical network, becauseThis present embodiment adopts PLC technology, need not additionally arrange other circuits, only need to make local repeater 120 and remote repeater 130Between using existing power line can mutual data transmission so that electrical network can also carry out while normal power supply data lead toLetter, thus effectively evaded and drawing feeder line, change the complicated operation bidirectional such as high-gain aerial, reduces construction complexity, meanwhile,Only need to be powered using the electrical network under same transformer, ambient adaptability is strong.
Wherein in an embodiment, terminal device 110 is big customer's negative control terminal, and it is used for gathering power distribution room electric fluxService condition.This terminal device 110 built-in ethernet communication interface, for by between Ethernet and local repeater 120Transmission data.In addition, this terminal device 110 passes through the data of RS485 interface collection site metering electric energy meter, i.e. power information.The power supply of this terminal device 110 is three-phase alternating current.
It is understood that the concrete structure of terminal device 110 is not limited to above-mentioned situation, as long as power information can be gatheredAnd effective transmission data between energy and local repeater 120.
Wherein in an embodiment, the structure composition block diagram of local repeater 120 is as shown in Figure 2.Local repeater 120Including the ethernet communication module 121 being sequentially connected, the first controller 122 and the first power carrier communication module 123.
Wherein, ethernet communication module 121 is used for being communicated using Ethernet with terminal device 110.Specifically, etherNetwork Communication module 121 is mainly used in the signal related to Ethernet and is modulated, demodulates, thus realizing the two-way signaling of EthernetTransfer function.Illustratively, ethernet communication module 121 can adopt ENC28J60 Ethernet transceiving chip, its compatible IEEE802.3 standards, are integrated with MAC and 10base-T PHY, built-in receiver and conflict suppression circuit, support a band auto polarityDetection and the 10base-T port of correction, support full and half duplex pattern, using independent SPI interface, maximum speed canReach 10Mbps, there are function admirable, easy to use, low cost and other advantages.
First power carrier communication module 123 is used for being led to using power carrier communication technology with remote repeater 130Letter.Specifically, the first power carrier communication module 123 is mainly used in the signal of power carrier correlation is modulated, demodulates,Thus realizing the signal transmitted in both directions function of power carrier communication.Illustratively, the first power carrier communication module 123 can adoptHi-PLC transceiving chip, this Hi-PLC transceiving chip is the Hi-PLC chip technology based on the research and development of IEEE1901 broadband PLC standard,2Mbps be can reach on traffic rate, improve 20 times than traditional PLC transceiving chip, solve what traditional PLC technology existedThe problem that transfer rate is low, communication reliability is poor.In addition, this Hi-PLC transceiving chip is based on communications band selecting and self adaptation skillArt, avoids traditional communication noise, can compare traditional PLC with the second best in quality frequency range of dynamic select, communication reliability simultaneouslyTechnology is increased dramatically.
The signal that first controller 122 is used for transmitting ethernet communication module 121 is converted to and is suitable to the first power carrierThe signal that communication module 123 receives, or the signal that the first power carrier communication module 123 is transmitted is converted to and is suitable to EthernetThe signal that communication module 121 receives.Specifically, the first controller 122 can carry out the conversion of communication protocol, thus guaranteeingRealize data double-way transmission.Illustratively, the first controller 122 can adopt STM32F103RC processor, and it uses high performanceThe RISC core of 32 Cortex-M3 of ARM, maximum operating frequency, up to 72MHz, has the place of highest 1.25DMips/MHZReason ability, built-in monocycle multiplication and hardware divider, in the FLASH memory of built-in 256K byte and the SRAM of 64K byteDeposit, peripheral hardware aspect has general purpose timer, PWM timer, the general-purpose interface such as SDIO, USART, SPI, CAN, ADC, USB, andThere is preferably EMC performance, compare and be suitable for using under power distribution room relatively rugged environment.
Further, please continue to refer to Fig. 2, local repeater 120 also includes the first termination power 124.First coupling electricityThe one end on road 124 is connected with the first power carrier communication module 123, the other end of the first termination power 124 pass through power line withRemote repeater 130 connects.First termination power 124 is termination power, generally has filtering, accumulation of energy, isolation, impedance conversion etc.One or more functions, by from the first termination power 124, improving the antijamming capability of PLC technology transmission.
In addition, the power supply of local repeater 120 is three-phase alternating current, and in local repeater 120, it is provided with the first electricitySource module (not shown).This first power module is suitable in local repeater 120 respectively for being converted to three-phase alternating currentThe power supply of module work, thus be powered to each module within local repeater 120.
It is understood that the composition structure of local repeater 120 is not limited to above-mentioned situation, as long as enable to terminal settingThe signal of standby 110 transmission by power line transmission to remote repeater 130, and can make the signal of remote repeater 130 transmissionCan transmit to terminal device 110.For example, if there is termination power inside the first power carrier communication module 123,First termination power 124 then need not be set.
Wherein in an embodiment, the composition structure of remote repeater 130 is as shown in Figure 3.Remote repeater 130 includesThe second power carrier communication module 131, second controller 132 and the mobile communications network module 133 being sequentially connected.
Wherein, the second power carrier communication module 131 is used for entering using power carrier communication technology with local repeater 120Row communication.Specifically, the second power carrier communication module 131 is mainly used in the signal of power carrier communication correlation is adjustedSystem, demodulation, thus realize the signal transmitted in both directions function of power carrier communication.Illustratively, the second power carrier communication module 131Hi-PLC transceiving chip equally can be adopted, the performance of this Hi-PLC transceiving chip refer to an embodiment and carries with regard to the first electric powerThe related content of wave communication module 123, just repeats no more here.
Mobile communications network module 133 is used for being communicated with power distribution automation main station 200 by mobile communications network.ToolBody, mobile communications network module 133 is mainly used in the signal related to mobile communications network and is modulated, demodulates, thus realThe signal transmitted in both directions function of existing mobile communications network.Illustratively, if mobile communications network is GPRS network, mobile radio communicationNetwork module 133 can adopt GPRS module M35F chip.
The signal that second controller 132 is used for transmitting the second power carrier communication module 131 is converted to and is suitable to mobile leading toThe signal that communication network module 133 receives, or the signal that mobile communications network module 133 is transmitted is converted to and is suitable to the second electric powerThe signal that carrier communication module 131 receives.Specifically, second controller 132 can carry out the conversion of communication protocol, thus ensureingIt is capable of two-way signaling transmission.Illustratively, second controller 132 equally can adopt STM32F103RC processor, shouldThe performance of STM32F103RC processor refer to the related content with regard to the first controller 122 for the embodiment, here just no longerRepeat.
Further, please continue to refer to Fig. 3, remote repeater 130 also includes movable signal detection module 134.Mobile letterNumber detection module 134 is connected with second controller 132, and this movable signal detection module 134 is used for detecting remote repeater 130The mobile communications network signal strength signal intensity of present position.Specifically, if mobile communications network is GPRS network, movable signal detectsModule 134 can adopt GC868 chip.
Therefore, the present embodiment can detect by movable signal detection module 134 that remote repeater 130 periphery is mobile logicalThe base station information of communication network and signal strength signal intensity, are that in-site installation personnel provide data foundation, thus it is stronger to search out signalInstallation site is to install remote repeater 130 so that remote repeater 130 can pass through mobile communications network and power distribution automationMain website 200 keeps proper communication, substantially increases efficiency of construction and the relaying effect of actual motion.
Further, please continue to refer to Fig. 3, remote repeater 130 also includes display module 135.This display module 135 withSecond controller 132 connects, and for showing the mobile communications network signal strength signal intensity that movable signal detection module 134 detects.Specifically, display module 135 can be LCD (Liquid Crystal Display, liquid crystal display).Wherein, display module135 can show mobile communications network signal strength signal intensity under the control of second controller 132.In addition, display module 135 is acceptableThe other content of display, such as base station information, warning information.When second controller 132 detects according to movable signal detection module 134Data when judging that the mobile communications network signal strength signal intensity of current location is unsatisfactory for the communicating requirement of remote repeater 130, permissibleBy display module 135 display alarm information, show the base station information of periphery, the workmen that is more convenient for is timely, quick simultaneouslySearch out the position being suitable to install remote repeater 130.
Further, please continue to refer to Fig. 3, remote repeater 130 also includes the second termination power 136.This second couplingOne end of circuit 136 is connected with the second power carrier communication module 131, and the other end of the second termination power 136 passes through power lineIt is connected with local repeater 120.Second termination power 136 is termination power, generally has filtering, accumulation of energy, isolation, impedance conversionDeng one or more functions, by from the second termination power 136, the antijamming capability of PLC technology transmission can be improved.
In addition, the power supply of remote repeater 130 is to be provided with the second electricity in single-phase alternating current, and remote repeater 130Source module (not shown).This second source module is suitable in remote repeater 130 respectively for being converted to single-phase alternating currentThe power supply of module work, thus be powered to each module within remote repeater 130.
It is understood that the composition structure of remote repeater 130 is not limited to above-mentioned situation, as long as enabling to distribution certainlyThe signal that Dong Hua main website 200 sends by power line transmission to local repeater 120, and can make local repeater 120 transmitSignal power distribution automation main station 200 can be wirelessly transmitted to by mobile communications network.For example, if the second power carrierThere is inside communication module 131 termination power, then the second termination power 136 need not be set.
Each technical characteristic of embodiment described above can arbitrarily be combined, for making description succinct, not to above-mentioned realityThe all possible combination of each technical characteristic applied in example is all described, as long as however, the combination of these technical characteristics is not depositedIn contradiction, all it is considered to be the scope of this specification record.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneouslyCan not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the artSay, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the protection of the present inventionScope.Therefore, the protection domain of patent of the present invention should be defined by claims.