CN105491059B - A kind of low-voltage power acquisition terminal and electric power data communication means - Google Patents
A kind of low-voltage power acquisition terminal and electric power data communication means Download PDFInfo
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- CN105491059B CN105491059B CN201511015578.5A CN201511015578A CN105491059B CN 105491059 B CN105491059 B CN 105491059B CN 201511015578 A CN201511015578 A CN 201511015578A CN 105491059 B CN105491059 B CN 105491059B
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/14—Multichannel or multilink protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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Abstract
The invention discloses a kind of low-voltage power acquisition terminals comprising: Acquisition Circuit is configured as: the first connection request from main website being parsed and identifies connection request state command character therein；Data format descriptor symbol is generated according to the connection request state command character；It is accorded with according to the data format descriptor of generation come in response to first connection request；The electric power acquisition request from main website is received, after receiving main website to the determination command character of above-mentioned response to establish the communication connection based on the first communications protocol link；The second connection request is sent to ammeter；The telecommunication circuit for connecting Acquisition Circuit, is configured as: monitoring and receives first connection request from the main website；And second connection request is sent to the ammeter.In one embodiment of the invention, a kind of electric power data communication means based on the low-voltage power acquisition terminal is designed.
Description
Technical field
The invention mainly relates to network system electric power acquisition technologies, especially with respect to what is generally used under network system environment
The method of the improvement of low-voltage power acquisition terminal and the electric power data acquisition of network system and communication.
Background technique
With specification DLT698.45 --- " acquiring electric energy information and management system-object-oriented interoperability data are handed over
Change agreement " rise, accordingly support the acquisition terminal equipment of the agreement and ammeter be gradually applied to electric power acquisition scene, this is therewith
Bring a field application problem: the mounted ammeter in scene is substantially based on DL/T645-2007 agreement, to support
DLT698.45 agreement needs a large amount of replacement ammeters, and not only project amount is huge for this, and renewal cost disposably put into it is excessive, such as
In the case where being where changed without ammeter, original agreement platform area for supporting DL/T645-2007 is upgraded to and supports DLT698.45's
Agreement platform area will bring great economic benefit to field application, it is therefore desirable to which designing a can support DLT698.45 " electric energy
Information collection and management system-object-oriented interoperability data exchange agreement " and DL/T645-2007 agreement low tension
Power acquisition terminal equipment is beneficial to the popularization and development of DLT698.45 agreement, is conducive to field application, greatly reduces
The universal cost of DLT698.45 agreement.
Summary of the invention
The present invention solves electric power acquisition terminal device can not support DLT698.45 " acquiring electric energy information and management simultaneously
System-object-oriented interoperability data exchange agreement " and DL/T645-2007 agreement or other more multi-protocols defect, and
It solves the problems, such as the compatible DL/T645-2007 agreement of DLT698.45, reduces ammeter replacement cost, in one implementation of the present invention
In example, a kind of low-voltage power acquisition terminal is set, which can set different communications protocol links to drive
Ammeter and main website carry out completely self-contained data separating in dynamic electric system, avoid due to the mutually nested caused erroneous judgement of agreement
Problem, so that safe and reliable supports function while realizing DL/T645 and DLT698.45 agreement or other agreements.At this
It invents in another embodiment, can realize that the free communication between main website and different ammeters connects using this low-voltage power acquisition terminal
It connects.
In an embodiment of the invention, low-voltage power acquisition terminal is in electric system between main website and ammeter
Carry out the identification and automatic conversion of different communication protocol.The low-voltage power acquisition terminal includes:
Acquisition Circuit is configured as: will be used to establish between the main website and ammeter based on first from the main website
First connection request of communications protocol link is parsed and identifies connection request state command character therein；According to the connection
At least part of solicited status command character generates data format descriptor symbol；According to the data format descriptor of generation accord with come in response to
First connection request is being established between the main website and ammeter based on the communications protocol link wherein the response bag has contained
Communication connection corresponding to transformation rule descriptor；After receiving the main website to the determination command character of above-mentioned response periodically
Ground receives the electric power acquisition request from the main website, to establish the communication connection based on first communications protocol link；With
And it is sent to the ammeter and is based on the second communications protocol link for establishing between the low-voltage power acquisition terminal and ammeter
The second connection request, wherein second connection request is the Acquisition Circuit according to data format descriptor symbol by the electric power
Acquisition request conversion obtains；
The telecommunication circuit for connecting the Acquisition Circuit, is configured as: monitoring and receives first connection from the main website
Request, and periodically receive the electric power acquisition request from the main website；And second connection is sent to the ammeter
Request.
In a kind of modification, the telecommunication circuit includes:
Demodulator circuit is configured as receiving the first connection request from the main website based on the first communications protocol link,
Or it is received from the ammeter based on the second communications protocol link to the determination command character of the second connection request, wherein the demodulation
Circuit is that the communication mode according to specified by the first communications protocol link carries out demodulation to the signal waveform from the main website；
Modulation circuit is configured as transmitting the second connection request based on the second communications protocol link, or based on the first communication
Protocol link is to the master station transmission electric power acquisition data, wherein the modulation circuit is according to the second communications protocol link meaning
Fixed communication mode carries out the modulation for the signal waveform transmitted to the ammeter；And
The controller for connecting above-mentioned demodulator circuit and modulation circuit is configured as the data generated according to the Acquisition Circuit
Format descriptor and transformation rule descriptor come control the demodulator circuit and modulation circuit be based on the first communications protocol link or
Second communications protocol link receives and transmission signal waveform.
In another modification, the telecommunication circuit is that can remove from the low-voltage power acquisition terminal one is portable
Formula digital transmitting and receiving equipment.
In terms of an improvement, the telecommunication circuit has shell, and the controller is packaged in the square in a shell
In shape profile.
Wherein, the demodulator circuit and modulation circuit respectively include along the rectangular profile square edge it is outwardly extending
Antenna sets, the antenna sets are with right angle bending angle around the square edge of rectangular profile locating for the controller.
Further, multiple parallel electromagnetic shields are built-in in the shell, for by the space in the shell
It is separated into including the rectangular profile and contacts the right angle bending profile of the rectangular profile.
Further, the antenna sets further comprise being connected to the controller: along the rectangular profile side
The earthed circuit of ground terminal in the shell is extended downward into along longitudinal direction；With along another side of the rectangular profile separately down
Extend to the antenna transceiver boards in the right angle bending profile.
In another embodiment, the electric power data communication means realized based on above-mentioned low-voltage power acquisition terminal
Be for realizing in electric system between main website and ammeter under different communication protocol automated communications connection, this method comprises:
It will be used to establish the first connection request based on the first communications protocol link between the main website and ammeter from the main website
It is parsed and identifies connection request state command character therein；According at least part of the connection request state command character
Generate data format descriptor symbol；It is accorded with according to the data format descriptor of generation come in response to first connection request, wherein the sound
It should contain and establish the rule of conversion corresponding to the communication connection based on the communications protocol link between the main website and ammeter
Then descriptor；The electric power from the main website is periodically received after receiving the main website to the determination command character of above-mentioned response
Acquisition request, to establish the communication connection based on first communications protocol link；And it sends to the ammeter for low
The second connection request based on the second communications protocol link is established between piezoelectric forces acquisition terminal and ammeter, wherein second connection
Request is that the low-voltage power acquisition terminal obtains electric power acquisition request conversion according to data format descriptor symbol.
In a kind of modification, the electric power data communication means is again comprising steps of the ammeter is connected described second
Request is parsed and is identified connection request state command character therein, reads electric power according to the connection request state command character
Continuous data；Electric power acquisition data is sent to low-voltage power acquisition terminal based on above-mentioned second communications protocol link, wherein the electricity
Power acquires Data Identification address or the implementor name of the electric-power metering data and ammeter relevant to the electric-power metering data；Root
According to the data format descriptor symbol will the electric-power metering data be written register in, according to the data format descriptor symbol and
The address of ammeter relevant to the electric-power metering data or implementor name generate address or the equipment of the low-voltage power acquisition terminal
Name；The electric-power metering data of storage are converted into the electricity based on the first communications protocol link with according to the transformation rule descriptor
Power continuous data, and send to the main website for establishing first based on the first communications protocol link between main website and ammeter
Connection request, wherein first connection request identifies address or the implementor name of the low-voltage power acquisition terminal.
In above-mentioned each embodiment, communication protocol type used by first communications protocol link is to be based on
DLT698.45 agreement, communication protocol type used by second communications protocol link are based on DL/T645-2007 agreement.
In other modifications, other communication protocol types are can also be used in above-mentioned first communications protocol link.Third communication protocol link
Infrared or other radio frequency protocol modes can be used.
Using beneficial effects of the present invention: installation supports the low-voltage power of DLT698.45 and DL/T645-2007 agreement to adopt
Collection terminal has the advantage that the collecting efficiency for promoting electric-power metering data, reduces carrier wave data transmission and interaction times,
It is overall to reduce data transmission time-consuming；Low-voltage power acquisition terminal with multi protocol supporting and conversion function can be used
DLT698.45 agreement bring superiority, and it is completely compatible to original DL/T645-2007 agreement, it can also be by (for example) thoroughly
Arq mode is communicated fully according to DL/T645-2007 agreement；The low-voltage power acquisition terminal uses caching technology, will be original
The electric-power metering data temporary storage of ammeter acquisition can be improved communication efficiency, also solve DL/ inside acquisition terminal
T645-2007 agreement ammeter does not have the data and curves problem such as voltage, electric current, power, power factor, can by these curve datas
To monitor power quality, power load etc., analysis user power utilization habit promotes user service quality.Meanwhile telecommunication circuit can be from
It is removed on low-voltage power acquisition terminal, facilitates power department operation maintenance personnel to carry to copy and accept electric power data, such as is logical by third
Believe that protocol link (infrared connection mode) closely reads ammeter reading, Acquisition Circuit is recycled to carry out data protocol from turn
It changes, it is convenient and practical.
Detailed description of the invention
Fig. 1 schematically depicts the functional block diagram of low-voltage power acquisition terminal of the present invention；
Fig. 2 is the electrical setting schematic diagram of telecommunication circuit of the present invention.
Specific embodiment
For current low-voltage power system, the scheme using each embodiment of the present invention is particularly effective.One
In a embodiment, low-voltage power acquisition terminal 10 includes:
Acquisition Circuit 11, is configured as: will be used to establish between the main website and ammeter based on the from the main website
First connection request of one communications protocol link is parsed and identifies connection request state command character therein；According to the company
At least part for connecing solicited status command character generates data format descriptor symbol；It is accorded with according to the data format descriptor of generation to respond
In first connection request, established between the main website and ammeter based on the communication protocol chain wherein the response bag has contained
Transformation rule descriptor corresponding to the communication connection on road；The period after receiving the main website to the determination command character of above-mentioned response
Property receive from the main website electric power acquisition request, to establish the communication connection based on first communications protocol link；
And it is sent to the ammeter and is based on the second communication protocol for establishing between the low-voltage power acquisition terminal 10 and ammeter
Second connection request of link, wherein second connection request is that the Acquisition Circuit 11 will according to data format descriptor symbol
Electric power acquisition request conversion obtains；
The telecommunication circuit 12 for connecting the Acquisition Circuit, is configured as: monitoring and receives first company from the main website
Request is connect, and periodically receives the electric power acquisition request from the main website；And described second is sent to the ammeter and is connected
Connect request.
In a kind of modification, the telecommunication circuit 12 includes:
Demodulator circuit 121 is configured as the first connection based on the reception of the first communications protocol link from the main website and asks
It asks, or is received from the ammeter based on the second communications protocol link to the determination command character of the second connection request, wherein described
Demodulator circuit is that the communication mode according to specified by the first communications protocol link is carried out to the signal waveform from the main website
Demodulation；
Modulation circuit 122 is configured as transmitting the second connection request based on the second communications protocol link, or logical based on first
Protocol link is believed to the master station transmission electric power acquisition data, wherein the modulation circuit is according to the second communications protocol link institute
Specified communication mode carries out the modulation for the signal waveform transmitted to the ammeter；And
The controller 123 for connecting above-mentioned demodulator circuit 121 and modulation circuit 122, is configured as according to the Acquisition Circuit
The 11 data format descriptor symbols generated are based on the first communication protocol chain with transformation rule descriptor to control the demodulator circuit 121
Road or the second communications protocol link receive and transmission signal waveform.
Further, the Acquisition Circuit 11 is configured as again: can not correctly parsed and identified that first connection is asked
When connection request state command character in asking, third connection request is sent to the main website, wherein the third connection request is base
It sends in the communications protocol link in addition to above-mentioned first, second communications protocol link, identifies in the third connection request
The address of this low-voltage power acquisition terminal 10 (for example, IP address or MAC Address) or implementor name are (for example, the bar shaped of equipment
Code).
Further, the Acquisition Circuit 11 is configured as again: being received and is connected from the main website in response to the third
The determination command character of request, wherein the response bag has contained the main website to communication possessed by the low-voltage power acquisition terminal 10
The storage of protocol link type operates；And it is logical based on second to be established between the main website according to the received determining command character of institute
Believe the communication connection of protocol link.
In another modification, the telecommunication circuit 12 of the low-voltage power acquisition terminal 10 is a portable digital processing
Equipment, i.e., the described telecommunication circuit 12 are that the portable digital transmitting-receiving that can be removed from the low-voltage power acquisition terminal 10 is set
It is standby.For example, telecommunication circuit 12 can be set to portable unit, carried by power grid operation maintenance personnel to complete mobile collection work.
Referring to Fig. 2, in terms of an improvement, the controller 123 is packaged in the rectangular profile in a shell 124
In 125.As shown in Fig. 2, rectangular profile 125 can be a groove or accommodating chamber, for accommodating controller 123, controller 123
The packing forms that can be circuit board, are also possible to chip form.The demodulator circuit 121 and modulation circuit 122 respectively include
Along the outwardly extending antenna sets of square edge of the rectangular profile 125, the antenna sets are with right angle bending angle around institute
The square edge of controller 123 is stated, to provide compact installation region under the premise of not increasing the internal height of telecommunication circuit 12.
Wherein, the shell 124 is to be built-in with multiple parallel electricity in shell 124 for encapsulating above-mentioned telecommunication circuit 12
Magnetic shield 127, for the space in the shell 124 to be separated into including the rectangular profile 125 and contact the rectangle wheel
The right angle of exterior feature 125 bends profile 126 and 1261.
Wherein, the right angle bending profile 126 and 1261 is respectively used to accommodate the demodulator circuit 121 and modulation circuit
122 respective antenna sets.In the embodiment depicted in figure 2, bending profile 126 and 1261 in right angle contacts with each other, and right angle bending wheel
Exterior feature 126 surrounds the rectangular profile 125 again, and right angle bends the at L-shaped shape of profile 126 and 1261, for compact package
Space.
As an improvement the antenna sets further comprise being connected to the controller 123: along the rectangular profile
125 sides extend downward into the earthed circuit 128 of ground terminal 129 in the shell 124 along longitudinal direction, and along the rectangular profile
125 another side extend to the antenna transceiver boards 1301 and 1302 in the right angle bending profile 126 and 1261 separately down.
Wherein at L shape in downward direction, the ground terminal 129 is attached at the rectangular profile 125 and bends with right angle earthed circuit 128
Between the side of profile 126, to connect the controller 123 when controller 123 is packed into the rectangular profile 125
Earthed circuit 128 and antenna transceiver boards 1301 and 1302 respectively the antenna sets in contact right angle bending profile 126 and 1261 and
Ground terminal 129.
In an example, the side in the rectangular profile 125 not in contact with right angle bending profile 126 has opened up electrical connection
In the connector 131 of above-mentioned Acquisition Circuit 11, for realizing the data signal transmission between controller 123 and Acquisition Circuit 11.
In the above-mentioned improvement of the telecommunication circuit 12, the shell 124 is made of insulating material, the earthed circuit 128,
Electromagnetic shield 127 is made of metal material, to realize effectiveness.
Communication can be packed into shell 124 in order to reach the packaging effect that insulation outside air influences as a kind of modification
After circuit 12, above-mentioned right angle is filled by liquid insulating organic material (for example, resinous material) and bends the He of profile 126 and 1261
Rectangular profile 125.
In another embodiment, the electric power data communication of the low-voltage power acquisition terminal 10 based on previous embodiment description
Method includes:
Step 1, after electric system powers on, the main website is by the first communications protocol link to low-voltage power acquisition terminal
10 send the first connection request CNT_TASK1.Wherein, first communications protocol link is to be based on DLT698.45 agreement framework,
First connection request for identifying the connection is carried out based on DLT698.45 agreement；
Step 2 will be used to establish between the main website and ammeter based on the first communication protocol chain from the main website
First connection request on road is parsed and identifies connection request state command character FRAME_CTRL therein.In a preferable example
In son, is persistently monitored by telecommunication circuit 12 and receive the first connection request CNT_TASK1 from the main website, such as supervised
Enter reception state after hearing first connection request CNT_TASK1, analyzes connection request state command character FRAME_ therein
CTRL.Meanwhile the electric power acquisition request from the main website can be periodically received by telecommunication circuit 12.Wherein, shape is requested
State command character FRAME_CTRL is registered in main website according to the instruction that main website is set to determine whether meeting for Acquisition Circuit 11
The low-voltage power acquisition terminal 10 registration type, whether first communications protocol link stable and triggering collection circuit
11 transfer the DLT698.45 protocol type being stored in the memory of the Acquisition Circuit 11；
Step 3 is retouched according at least part of connection request state command character FRAME_CTRL generation data format
State symbol.For example, analyzing a part of connection request state command character FRAME_CTRL when telecommunication circuit 12 is in reception state
Frame length content, such as analysis frame content-length are 7 bytes, can extract to be stored in after 6 byte contents before receiving and adopt
Channel type CH/UART_BUF corresponding with first communications protocol link in the memory of collector 11, so that it is determined that letter
Road and modulation system, to generate data format descriptor symbol FRAME_TYPE.Wherein, data format descriptor symbol FRAME_TYPE be by
The subsequent data format based on the received data of the first communications protocol link is write direct and is described, to avoid acquisition
The data processing module of circuit 11 causes the merging or decomposition data when data conversion due to the difference of data item under different agreement
The operation of item；
Step 4 accords with FRAME_TYPE according to the data format descriptor of generation come in response to first connection request CNT_
TASK1, wherein the response bag, which has contained, is establishing leading to based on first communications protocol link between the main website and ammeter
The corresponding transformation rule descriptor CMD_TYPE of letter connection.Wherein, transformation rule descriptor CMD_TYPE is based on for providing
Conversion regime from the DLT698.45 protocol type data of first communications protocol link to data when other protocol conversions, this
Kind mode can be (for example) direct mapping or transparent transmission mode；
Step 5 periodically receives after receiving the main website to the determination command character CH/UART_REV of above-mentioned response
It is requested from the electric power acquisition of the main website, to establish the communication connection based on first communications protocol link.For example, acquisition electricity
The settable timer TIMER in road 11, or receive (for example) heartbeat frame.Determine that the content of command character CH/UART_REV can be indicated only
Determination has been properly received the response；And
Step 6 sends to the ammeter and leads to for establishing between low-voltage power acquisition terminal 10 and ammeter based on second
Believe the second connection request CNT_TASK2 of protocol link, wherein second connection request CNT_TASK2 is that the low-voltage power is adopted
Collection terminal 10 accords with FRAME_TYPE according to the data format descriptor and obtains electric power acquisition request conversion.Wherein, low tension
The Acquisition Circuit 11 of power acquisition terminal 10 can not extract above-mentioned transformation rule descriptor CMD_TYPE, and directly setting conversion is advised
Then, Data Format Transform is carried out after according with FRAME_TYPE by data format descriptor and electric power acquisition request is written.It should be appreciated that
Second communications protocol link is to be based on DL/T645-2007 agreement framework, correspondingly the first connection request CNT_
TASK1 for identifying the connection is carried out based on DL/T645-2007 agreement.
In a kind of modification, Acquisition Circuit 11 possibly normally can not read and parse the first connection request CNT_TASK1, this
It may be that the low-voltage power acquisition terminal 10 is not present and first communications protocol link in main website registration or memory
The protocol type being consistent, in the case, Acquisition Circuit 11 needs whether actively inquiry forms the first communication protocol chain with main website
Road.Thus in the step 2 of above-mentioned electric power data communication means, and including step 2-1: it is described can not correctly parse and identify
When connection request state command character FRAME_CTRL in the first connection request CNT_TASK1, third is sent to the main website and is connected
Meet request CNT_TASK3, with request with a kind of corresponding communication protocol of other communication links of the Acquisition Circuit 11 setting with
Main website establishes connection.Wherein third connection request CNT_TASK3 is based in addition to above-mentioned first, second communications protocol link
Communications protocol link send, in third connection request CNT_TASK3 identify this low-voltage power acquisition terminal 10
Address (such as MAC Address) or implementor name.
Further, which can realize current communication connection based on the preferred mode of previous embodiment,
In one embodiment of above-mentioned steps 2, above-mentioned electric power data communication means again comprising steps of
Step 2-2, it receives from the main website in response to the determination command character CH/ of third connection request CNT_TASK3
UART_REV, wherein the response bag has contained the main website to communications protocol link possessed by the low-voltage power acquisition terminal 10
The storage of type operates.In an example, Acquisition Circuit 11 can download above-mentioned first, second communications protocol link from main station side
Corresponding protocol type, or operation is updated to existing data port；With
Step 2-3, second is based on to establish between the main website according to the received determining command character CH/UART_REV of institute
The communication connection of communications protocol link.Main website can be according to the data protocol format of ammeter, such as based on DL/T645-2007 agreement
Framework completes the communication connection based on the second communications protocol link, and in this way, main website can be acquired directly to the low-voltage power
Terminal 10 sends electric power acquisition request, logical based on second because being previously created between the low-voltage power acquisition terminal 10 and ammeter
The communication connection for believing protocol link, there is no need to extract above-mentioned data format descriptor symbol FRAME_TYPE, to can realize to master
It stands the compatibility based on DL/T645-2007 agreement framework at end.
Further, above-mentioned electric power data communication means includes step 2-4 again: according with FRAME_ according to data format descriptor
TYPE and transformation rule descriptor CMD_TYPE select one in the first, second or third communications protocol link as transmission
The optimal communication protocol link of electric power acquisition data.In this step, Acquisition Circuit 11 can be accorded with according to data format descriptor
FRAME_TYPE and transformation rule descriptor CMD_TYPE provides a selection logic, in the selection logic, (for example) to believe
Number intensity or channel data rate of interaction come judge to select any communications protocol link send/receive data.To reduce
The data redundancy that data transmission resources are occupied and are likely to occur.In one embodiment, it can not use and be referred in above-mentioned steps 2-3
Communication connection of the foundation based on the second communications protocol link, third communication protocol link can also be reused and establish communication link
It connects.
Wherein, principle based on the above embodiment is established the communication connection based on the third communication protocol link and (such as is penetrated
Frequency mode) operation may include according to the data format descriptor of generation accord with FRAME_TYPE come in response to third connection request CNT_
TASK3, wherein the response bag, which has contained, is establishing leading to based on the third communication protocol link between the main website and ammeter
The corresponding transformation rule descriptor CMD_TYPE of letter connection.Wherein, transformation rule descriptor CMD_TYPE is based on for providing
For the protocol type data of the third communication protocol link to the conversion regime of data when other protocol conversions, this mode can be with
It is (for example) directly to map or transparent transmission mode.The main website is received to the determination command character CH/ of above-mentioned response in Acquisition Circuit 11
The electric power acquisition request from the main website is periodically received after UART_REV, is based on the third communication Protocol chain to establish
The communication connection on road.For example, Acquisition Circuit 11 can receive heartbeat frame, the content of determination command character CH/UART_REV can only refer to
Show that determination has been properly received the response.
In another modification, for the automatic conversion and effectively transmission of the electric power acquisition data collected to ammeter, in institute
In the step 6 for the electric power data communication means stated again comprising steps of
Step 6-1, the second connection request CNT_TASK2 is parsed and is identified that connection therein is asked by the described ammeter
State command character FRAME_CTRL is sought, electric-power metering data are read according to the connection request state command character FRAME_CTRL；
Step 6-2, electric power acquisition data is sent to low-voltage power acquisition terminal 10 based on above-mentioned second communications protocol link,
Wherein the electric power acquisition data identifies the address (example of the electric-power metering data and ammeter relevant to the electric-power metering data
Such as IP address) or implementor name；
Step 6-3, it is accorded with according to the data format descriptor and the electric-power metering data is written in register, according to described
Data format descriptor accords with described in address or the implementor name generation of FRAME_TYPE and ammeter relevant to the electric-power metering data
The address of low-voltage power acquisition terminal 10 or implementor name.Wherein, the address of the low-voltage power acquisition terminal 10 or implementor name can
IP address or implementor name or alternative comprising ammeter indicate, to identify under each low-voltage power acquisition terminal 10
Ammeter and its device type, for registering the ammeter to main website, main website can be set different according to the device type of different ammeters
Electric power acquisition data collect logic；With
Step 6-4, the electric-power metering data of storage are converted to according to the transformation rule descriptor CMD_TYPE and are based on
The electric-power metering data of first communications protocol link, and send to the main website for establishing between main website and ammeter based on the
First connection request CNT_TASK1 of one communications protocol link, wherein first connection request CNT_TASK1 is identified described low
The address of piezoelectric forces acquisition terminal 10 or implementor name.
Technical solution of the present invention and beneficial effect is described in detail in above-described specific embodiment, Ying Li
Solution is not intended to restrict the invention the foregoing is merely presently most preferred embodiment of the invention, all in principle model of the invention
Interior done any modification, supplementary, and equivalent replacement etc. are enclosed, should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of low-voltage power acquisition terminal, in the knowledge for carrying out different communication protocol in electric system between main website and ammeter
Not and automatic conversion, it is characterised in that the low-voltage power acquisition terminal includes:
Acquisition Circuit is configured as:
By the first connection being used to establish between the main website and ammeter based on the first communications protocol link from the main website
Request is parsed and identifies connection request state command character therein；
Data format descriptor symbol is generated according at least part of the connection request state command character；
It is accorded with according to the data format descriptor of generation come in response to first connection request, wherein the response bag has contained the main website
Transformation rule descriptor corresponding to the communication connection based on the communications protocol link is being established between ammeter；
The electric power acquisition from the main website is periodically received after receiving the main website to the determination command character of above-mentioned response
Request, to establish the communication connection based on first communications protocol link；And
It is sent to the ammeter and is based on the second communication protocol chain for establishing between the low-voltage power acquisition terminal and ammeter
Second connection request on road, wherein second connection request is that the Acquisition Circuit is accorded with according to the data format descriptor by the electricity
Power acquisition request conversion obtains；
The telecommunication circuit for connecting the Acquisition Circuit, is configured as:
It monitors and receives first connection request from the main website, and periodically receive the electric power acquisition from the main website
Request；And
Second connection request is sent to the ammeter；
The telecommunication circuit includes:
Demodulator circuit is configured as receiving the first connection request or base from the main website based on the first communications protocol link
It receives from the ammeter in the second communications protocol link to the determination command character of the second connection request, wherein the demodulator circuit
It is that the communication mode according to specified by the first communications protocol link carries out demodulation to the signal waveform from the main website；
Modulation circuit is configured as being transmitted the second connection request based on the second communications protocol link, or is based on the first communication protocol
Master station transmission electric power acquisition data described in chain road direction, wherein the modulation circuit is according to specified by the second communications protocol link
Communication mode carries out the modulation for the signal waveform transmitted to the ammeter；With
The controller for connecting above-mentioned demodulator circuit and modulation circuit is configured as the data format generated according to the Acquisition Circuit
Descriptor and transformation rule descriptor are based on the first communications protocol link or second to control the demodulator circuit and modulation circuit
Communications protocol link receives and transmission signal waveform；
The Acquisition Circuit is configured as again: can not correctly parsed and identified the connection request shape in first connection request
When state command character, third connection request is sent to the main website, wherein the third connection request is based on except above-mentioned first, second
Communications protocol link other than communications protocol link is sent, and the acquisition of this low-voltage power is identified in the third connection request eventually
The address at end or implementor name；
The Acquisition Circuit is configured as again:
It receives from the main website in response to the determination command character of the third connection request, wherein the response bag has contained the master
The storage to communications protocol link type possessed by the low-voltage power acquisition terminal of standing operation；With
According to received determining command character come between the main website establish the communication connection based on the second communications protocol link.
2. low-voltage power acquisition terminal according to claim 1, which is characterized in that the low-voltage power acquisition terminal is one
A portable digital processing equipment.
3. a kind of electric power data communication means, for realizing in electric system between main website and ammeter under different communication protocol
Automated communications connection, characterized by comprising:
By the first connection being used to establish between the main website and ammeter based on the first communications protocol link from the main website
Request is parsed and identifies connection request state command character therein；
Data format descriptor symbol is generated according at least part of the connection request state command character；
It is accorded with according to the data format descriptor of generation come in response to first connection request, wherein the response bag has contained the main website
Transformation rule descriptor corresponding to the communication connection based on the communications protocol link is being established between ammeter；
The electric power acquisition from the main website is periodically received after receiving the main website to the determination command character of above-mentioned response
Request, to establish the communication connection based on first communications protocol link；And
It sends to the ammeter for establishing between low-voltage power acquisition terminal and ammeter based on the second communications protocol link
Second connection request, wherein second connection request is that the low-voltage power acquisition terminal will according to data format descriptor symbol
Electric power acquisition request conversion obtains；
Further include: when can not correctly parse and identify the connection request state command character in first connection request, to institute
State main website send third connection request, wherein the third connection request be based on except above-mentioned first, second communications protocol link with
Outer communications protocol link is sent, and identifies address or the equipment of this low-voltage power acquisition terminal in the third connection request
Name；
Further include: it receives from the main website in response to the determination command character of the third connection request, wherein the response bag contains
The main website operates the storage of communications protocol link type possessed by the low-voltage power acquisition terminal；With
According to received determining command character come between the main website establish the communication connection based on the second communications protocol link；
It further comprises the steps of: according to data format descriptor symbol and the first, second or third communication protocol of transformation rule descriptor selecting
An optimal communication protocol link as transmission electric power acquisition data in link.
4. electric power data communication means according to claim 3, it is characterised in that and include:
Second connection request is parsed and identifies connection request state command character therein by the ammeter, according to described
Connection request state command character reads electric-power metering data；
Electric power acquisition data is sent to low-voltage power acquisition terminal based on above-mentioned second communications protocol link, wherein the electric power acquisition
Data Identification address or the implementor name of the electric-power metering data and ammeter relevant to the electric-power metering data；
The electric-power metering data are written in register according to data format descriptor symbol, according to the data format descriptor
The address or implementor name of symbol and ammeter relevant to the electric-power metering data generate the address of the low-voltage power acquisition terminal
Or implementor name；And
The electric-power metering data of storage are converted into the electricity based on the first communications protocol link according to the transformation rule descriptor
Power continuous data, and send to the main website for establishing first based on the first communications protocol link between main website and ammeter
Connection request, wherein first connection request identifies address or the implementor name of the low-voltage power acquisition terminal.
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| CN203250408U (en) * | 2013-03-25 | 2013-10-23 | 中国科学院沈阳自动化研究所 | Electric power data collector based on wireless meter reading technology |
| CN203300035U (en) * | 2013-04-25 | 2013-11-20 | 国家电网公司 | Acquirer and power utilization information acquiring system |
| CN103839399A (en) * | 2014-02-20 | 2014-06-04 | 国家电网公司 | 485 conversion carrier wave meter reading device and meter reading method |
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| CN103036878A (en) * | 2012-12-07 | 2013-04-10 | 广东电网公司佛山供电局 | Device and method for networking protocol conversion |
| CN203250408U (en) * | 2013-03-25 | 2013-10-23 | 中国科学院沈阳自动化研究所 | Electric power data collector based on wireless meter reading technology |
| CN203300035U (en) * | 2013-04-25 | 2013-11-20 | 国家电网公司 | Acquirer and power utilization information acquiring system |
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