Summary of the invention
Inventor of the present invention finds the problem that exists in the above-mentioned prior art, and has therefore proposed a kind of new technical scheme at least one problem in the said problem.
An object of the present invention is to provide a kind of power information collecting device, power information collection and transmission method and system, guarantee stability and real-time that power information is gathered.
According to an aspect of the present invention, a kind of power information collecting device is provided, has comprised:
Data acquisition module is used for obtaining image data from ammeter;
The EPON processing module is used for converting said image data to be suitable for through the EPON system transmissions EPON data;
Optical transmission module is used under said EPON processing module control, generating light signal based on said EPON data, and sends said light signal through optical fiber.
Preferably, said data acquisition module has at least one interface, is connected with at least one ammeter holding signal respectively.
Preferably, the said interface of said data acquisition module is the RS485 interface, is used for being connected with the ammeter holding signal through the RS485 bus.
Preferably, said power information collecting device also comprises the FE interface module, and said FE interface module is electrically connected with said EPON processing module, as the debugging maintenance mouth of said power information collecting device.
Preferably, said power information collecting device also comprises memory module, is used to store said image data.
Preferably, said memory module comprises FLASH and/or SRAM.
According to a second aspect of the invention, a kind of power information collection and transmission system are provided, have comprised:
The power information collecting device; Said equipment comprises data acquisition module, EPON processing module and optical transmission module; Wherein said data acquisition module is used for obtaining image data from ammeter; Said EPON processing module is used for converting said image data to be suitable for through the EPON system transmissions EPON data, and said optical transmission module is used under said EPON processing module control, generating light signal based on said EPON data, and is configured to through optical fiber light signal is sent to optical branching device;
Optical branching device is connected through optical fiber with said optical transmission module, is used for the light signal that said optical transmission module sends is sent to optical line terminal;
Optical line terminal is connected respectively with main station system with said optical branching device, is used for the light signal that said optical branching device sends is converted into electric signal and is sent to said main station system;
Main station system is used for the electric signal that said optical line terminal sends is handled, and said power information collection and transmission system is controlled.
Preferably, said data acquisition module has at least one interface, is connected with at least one ammeter holding signal respectively.
Preferably, the said interface of said data acquisition module is the RS485 interface, is used for being connected with the ammeter holding signal through the RS485 bus.
Preferably, the power information collecting device of said power information collection and transmission system also comprises the FE interface module, and said FE interface module is electrically connected with said EPON processing module, as the debugging maintenance mouth of said power information collecting device.
Preferably, the power information collecting device of said power information collection and transmission system also comprises memory module, is used to store said image data.
Preferably, said memory module comprises FLASH and/or SRAM.
According to a third aspect of the invention we, a kind of method that is used to gather and transmit power information is provided, has comprised:
S101. obtain image data from ammeter;
S102. convert said image data to be suitable for EPON data through the EPON system transmissions;
S103. generate light signal based on said EPON data, and send said light signal through optical fiber.
Preferably, after step S101, store said image data.
Adopt power information collecting device of the present invention, can obtain image data from a plurality of ammeters, and image data finally is sent to main station system through the EPON system.Because the power information collecting device arrives main station system with image data through the EPON system transmissions; Phenomenon such as prolong when having avoided attenuation, packet loss, switching; Improved the signal transmission stability this can effectively reduce phenomenons such as information packet loss, improved the stability of power information transmission.
With reference to the detailed description of accompanying drawing to exemplary embodiment of the present invention, it is clear that further feature of the present invention and advantage thereof will become through following.
Embodiment
To describe various exemplary embodiment of the present invention in detail with reference to accompanying drawing now.It should be noted that: only if specify in addition, otherwise the positioned opposite of parts of in these embodiment, setting forth and step, numeral expression formula and numerical value do not limit the scope of the invention.
Simultaneously, should be understood that the size of the various piece shown in the accompanying drawing is not to draw according to the proportionate relationship of reality for the ease of describing.
Below be illustrative to the description only actually of at least one exemplary embodiment, never as any restriction to the present invention and application or use.
Possibly not go through for the known technology of association area those of ordinary skill, method and apparatus, but under suitable situation, said technology, method and apparatus should be regarded as a part of authorizing instructions.
In shown here and all examples of discussing, it only is exemplary that any occurrence should be interpreted as, rather than as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and the letter accompanying drawing below, therefore,, then in accompanying drawing subsequently, need further not discuss it in case defined in a certain Xiang Zaiyi accompanying drawing.
Fig. 2 is the structural representation of an embodiment of power information collecting device of the present invention.Referring to Fig. 2, power information collecting device 21 comprises data acquisition module 211, EPON processing module 212 and optical transmission module 213.
Wherein, data acquisition module 211 is used for obtaining image data from ammeter.Data acquisition module 211 can be provided with at least one interface, and each interface is connected with at least one ammeter holding signal respectively, can adopt the RS485 bus to connect.In the present embodiment, data acquisition module 211 is provided with 2 RS485 interfaces, and each interface is connected with a plurality of ammeter holding signals through the RS485 bus.Data acquisition module 211 is supported the collection and the transparent transmission of power information, not only can gather user's single-phase ammeter data, also can gather special change user's three-phase kilowatt-hour meter data.Need to prove that the number of interface is not limited to 2; The kind of interface is not limited to the RS485 interface, also can adopt the interface of other types, and for example optical fiber interface, wireless transmission interface are as long as can make data acquisition module be connected with the ammeter signal.
EPON processing module 212 is electrically connected with data acquisition module 211, can image data be changed into the EPON data that are suitable for through the EPON system transmissions.For example, image data is increased the EPON frame head, and convert the positive emitter coupling logic level (PECL, Positive Emitter Coupled Logic) of 1.25G/S into.
Optical transmission module 213 generates light signal based on the EPON data under the control of EPON processing module 212, and sends into outer circuit.For example generate wavelength and be the light signal of 1310nm and send this light signal through optical fiber.
Can the profile of power information collecting device of the present invention be provided with according to certain standard, for example the standard according to national grid Q/GDW375.3-2009 collector formula is provided with power information collecting device profile, and makes it have the plug and play characteristic.But power information collecting device of the present invention is the integrated power supply module also, and this power module is used for converting civil power into power information collecting device required WV.For example, power module is exported suitable WV after the AC220 alternating current is passed through filtering, surge protection, transformation and rectifying and wave-filtering, for example 3.3V or 5V.The normal working voltage of this power module can be AC220V ± 30%.In addition, can guarantee under the limit condition of operation of AC220V * 1.9 operate as normal at least 4 hours.
Adopt power information collecting device of the present invention, have the following advantages:
The first, since the power information collecting device with image data through the EPON system transmissions to main station system, phenomenon such as prolong when having avoided attenuation, packet loss, switching, improved the stability of signal transmission.
The second, owing to adopt the EPON system, its bandwidth can satisfy the requirement of real-time Transmission up to gigabit.
Three, a power information collecting device of the present invention can with 32 ammeters in addition more the ammeter of more number be connected, this multiple spot drainage pattern effectively reduces cost.
Fig. 3 is the structural representation of another embodiment of power information collecting device of the present invention.As shown in Figure 3, power information collecting device 31 comprises data acquisition module 311, EPON processing module 312, optical transmission module 313 and FE interface module 314.Wherein, the structure and the function of the corresponding module among data acquisition module 311, EPON processing module 312, optical transmission module 313 and Fig. 2 are identical.FE interface module 314 is electrically connected with EPON processing module 312.In common gatherer process, FE interface module 314 is convenient to the daily servicing debugging to equipment as the debugging maintenance mouth of power information collecting device 31.In addition, FE interface module 314 can also be used as the data communication mouth, is about to FE interface module 214 and directly is connected with main station system, thereby image data is sent to main station system.
Owing to be provided with FE interface module 314, can carry out debugging maintenance to power information collecting device 31 easily.In addition, a kind of subsequent use data communication mouth is provided also, has increased the selectivity of data transfer mode.
Fig. 4 is the structural representation of another embodiment of power information collecting device of the present invention.As shown in Figure 4, power information collecting device 41 comprises data acquisition module 411, EPON processing module 412, optical transmission module 413 and memory module 415.Wherein, data acquisition module 411, EPON processing module 412, optical transmission module 413 are identical with corresponding module among Fig. 2, Fig. 3.Memory module 415 can be stored the EPON data under the control of EPON processing module 412.Memory module 415 comprises FLASH and/or SRAM.For example, can with image data be temporarily stored among the SRAM or with acquisition data storage in FLASH, supply main station system to call.
Need to prove that the optical transmission module in the foregoing description also can replace with has the Optical Receivers that sends and receive dual-use function, thereby realizes two-way communication, it sends optical wavelength can be 1490nm, receives optical wavelength and can be 1310nm.Correspondingly, uplink and downlink transmission speed can reach 1.25Gbps.
In a further embodiment, the power information collecting device also can be integrated with data acquisition module, EPON processing module, optical transmission module, FE interface module, memory module and power module as required.
Fig. 5 is the structural representation of a power information collection of the present invention and an embodiment of transmission system.
As shown in Figure 5, power information collection and transmission system comprise power information collecting device 51, optical branching device 52, optical line terminal 53 and main station system 54.Power information collecting device 51 is identical with power information collecting device 21 among Fig. 2, comprises data acquisition module 511, EPON processing module 512 and optical transmission module 513.
Wherein, data acquisition module 511 is provided with the RS485 interface, can adopt the RS485 bus to be connected with ammeter, thereby obtains the image data of ammeter.EPON processing module 512 becomes to be suitable for the EPON data through the EPON system transmissions with the data-switching of being gathered.For example, image data is increased the EPON frame head, and convert the PECL of 1.25G/S into.Optical transmission module 513 generates light signal based on these EPON data under the control of EPON processing module, and is configured to through optical fiber light signal is sent to optical branching device 52.For example generate wavelength and be the light signal of 1310nm and send this light signal through optical fiber.Power information collecting device 51 generally can be located at corridor or place, unit, is used to gather the ammeter data of this corridor or this unit resident family.
Optical branching device 52 is connected with at least one telecommunications collecting device 51 through optical fiber, can the light signal that optical transmission module 413 sends be sent to optical line terminal.Particularly, the optical transmission module in optical branching device 52 and the telecommunications collecting device 51 513 is connected through optical fiber.In the present embodiment, optical branching device 52 can be connected with 32 power information collecting devices, also can select different splitting ratios according to actual needs certainly, and for example splitting ratio is 1: 8,1: 16 or 1: 64.Optical branching device 52 can be located at the sub-district, is connected with power information collecting device 51 in being located at each corridor, is responsible for collecting the ammeter information of whole sub-district.An optical branching device can be connected with a plurality of power information collecting devices, and finally collects the data of thousands of ammeters, satisfies the multiple spot requirement of electric power acquisition, effectively reduces cost; In addition, can adopt multiple suitable topological structure as required, make any power information collecting device can not influence the normal operation of other power information collecting devices.
Then, optical line terminal 53 converts the light signal that optical branching device 52 sends into electric signal, and is sent to main station system 54 through the FE interface of optical line terminal 53.Need to prove that optical line terminal 53 also can be sent to power information collecting device or ammeter with data through optical branching device according to the order of main station system, thereby realize the downlink transfer of data.
At last, the light signal of 54 pairs of optical line terminals of main station system, 53 transmissions carries out analyzing and processing.The analyzing and processing that main station system 54 is carried out is not limited to accomplish automatic data logging, also is used for business such as expense control, customer analysis, power utility check are controlled and accomplished in whole power information collection and transmission system.
The compatible international EPONIEEE802.3ah of native system, IEEE802.3-2005 standard, the compatible domestic EPON of operator standard of while, the for example compatible EPON of China Telecom technical requirement V2.1.In addition, native system also satisfies the collection standard of national grid power information, supports the transparent transmission of DLT645-2007 stipulations and the processing of Q/GDW376.1 stipulations.Collection and the transmission of adopting system of the present invention to carry out ammeter data have effectively improved the stability of signal transmission, satisfy the requirement of data in real time transmission, effectively reduce transmission cost.In addition, compare with the communication modes that adopts GPRS, CDMA, it is better to adopt system of the present invention to carry out the confidentiality of data transmission, has guaranteed safety of transmission.
Fig. 6 is the structural representation of another embodiment of power information collection of the present invention and transmission system.As shown in Figure 6, power information collection and transmission system comprise power information collecting device 61, optical branching device 62, optical line terminal 63 and main station system 64.
The 26S Proteasome Structure and Function of the power information collecting device 31 among power information collecting device 61 and Fig. 3 is identical, comprises data acquisition module 611, EPON processing module 612, optical transmission module 613 and FE interface module 614.Wherein data acquisition module 611 is provided with at least one interface, and each interface is connected with at least one ammeter holding signal respectively, thereby obtains the image data of ammeter.Its connected mode can adopt the RS485 bus to connect.EPON processing module 612 converts the image data that is obtained to be suitable for through the EPON system transmissions EPON data, for example, image data is increased the EPON frame head, and converts the PECL of 1.25G/S into.Certainly, also can adopt additive method to convert the EPON data to.Optical transmission module 513 generates light signal based on the EPON data under the control of EPON processing module, and is configured to through optical fiber light signal is sent to optical branching device 62.For example generate wavelength and be the light signal of 1360nm and send this light signal through optical fiber.FE interface module 614 is electrically connected with EPON processing module 612.In common gatherer process, FE interface module 614 is debugged thereby be convenient to that power information collecting device 62 is carried out daily maintenance as the debugging maintenance mouth of power information collecting device 62.In addition, FE interface module 514 can also be used as the data communication mouth, is about to FE interface module 614 and directly is connected with main station system 64, thereby image data is sent to main station system 64, has so just increased the selectivity of image data transmission mode.Optical branching device 62, optical line terminal 63 and main station system 64 are identical with corresponding device among Fig. 5, repeat no more at this.
Fig. 7 is the structural representation of another embodiment of power information collection of the present invention and transmission system.As shown in Figure 7, power information collection and transmission system comprise power information collecting device 71, optical branching device 72, optical line terminal 73 and main station system 74.The 26S Proteasome Structure and Function of the power information collecting device 41 among power information collecting device 71 and Fig. 4 is identical, comprises data acquisition module 711, EPON processing module 712, optical transmission module 713 and memory module 715.Wherein data acquisition module 711 can be provided with at least one interface, and each interface is connected with at least one ammeter holding signal respectively, and adopts the RS485 bus to connect, thereby obtains the image data of ammeter.EPON processing module 712 converts the image data that is obtained to be suitable for through the EPON system transmissions EPON data, for example, image data is increased the EPON frame head, and converts the PECL of 1.25G/S into.Based on these EPON data, optical transmission module 713 generates light signal under 712 controls of EPON processing module, and is configured to through optical fiber light signal is sent to optical branching device 72.Memory module 715 is used for storage EPON data under the control of EPON processing module 712.Memory module 715 comprises FLASH and/or SRAM.For example, can image data be temporarily stored among the SRAM, guarantee the real-time Transmission of image data; Perhaps with acquisition data storage in FLASH, carry out the transmission of data according to main station system 74 call instructions.Optical branching device 72, optical line terminal 73 and main station system 74 are identical with relevant device among Fig. 5, Fig. 6, repeat no more at this.
Power information collecting device in power information collection and the transmission system also can be integrated with data acquisition module, EPON processing module, optical transmission module, FE interface module, memory module and power module as required.
Need to prove that the optical transmission module in the foregoing description can replace with has the Optical Receivers that sends and receive dual-use function, thereby realizes two-way communication, it sends optical wavelength can be 1490nm, receives optical wavelength and can be 1310nm.Correspondingly, uplink and downlink transmission speed can reach 1.25Gbps.
Fig. 8 is used to gather and transmits the process flow diagram of an embodiment of the method for power information for the present invention.
As shown in Figure 8, the present invention is used to gather and the method for transmitting power information comprises:
S101. obtain image data from ammeter;
Can utilize data acquisition module to obtain image data from ammeter.Data acquisition module can be provided with a plurality of interfaces, and each interface is connected with a plurality of ammeter holding signals respectively.Therefore, data acquisition module can be gathered the data of a plurality of ammeters simultaneously.
S102. convert said image data to be suitable for EPON data through the EPON system transmissions;
Utilize the EPON processing module image data to be changed into the EPON data that are suitable for through the EPON system transmissions.For example, image data is increased the EPON frame head, and convert the PECL of 1.25G/S into, perhaps adopt additive method well known in the art to change.
S103. generate light signal based on said EPON data, and send said light signal through optical fiber.
Can utilize optical transmission module to generate light signal, and send into outer circuit.For example, utilize optical transmission module to generate wavelength and send this light signal for the light signal of 1310nm and through optical fiber.Particularly, can light signal be sent to optical branching device from optical transmission module, be sent to optical line terminal by optical branching device again, convert this light signal to electric signal by optical line terminal at last and be sent to main station system through the FE interface and carry out analyzing and processing.
Need to prove that the power information transmission can be a transmitted in both directions, and is not limited only to uplink.For example, optical line terminal capable of using is sent to power information collecting device or ammeter with data through optical branching device according to the order of main station system, thereby accomplishes the downlink transfer of data.
Preferably, after step S101, store said image data.For example, can with image data be temporarily stored among the SRAM or with acquisition data storage in FLASH, supply main station system to call.The real-time Transmission of data can be guaranteed like this, also data transmission can be in needs, carried out.
Though specific embodiments more of the present invention are specified through example, it should be appreciated by those skilled in the art that above example only is in order to describe, rather than in order to limit scope of the present invention.It should be appreciated by those skilled in the art, can under situation about not departing from the scope of the present invention with spirit, above embodiment be made amendment.Scope of the present invention is limited accompanying claims.