CN111007312B - Identification method of multiple intelligent meters under centralized metering system and centralized metering system - Google Patents
Identification method of multiple intelligent meters under centralized metering system and centralized metering system Download PDFInfo
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- CN111007312B CN111007312B CN201911067992.9A CN201911067992A CN111007312B CN 111007312 B CN111007312 B CN 111007312B CN 201911067992 A CN201911067992 A CN 201911067992A CN 111007312 B CN111007312 B CN 111007312B
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/068—Arrangements for indicating or signaling faults
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Abstract
The invention discloses a method for identifying multiple intelligent meters under a centralized metering system, wherein the method for identifying the multiple intelligent meters comprises the following steps: the intelligent management controller identifies the power-on state of the power grid based on the sensor signal, generates an epitope information communication instruction and sends the epitope information communication instruction to the multi-channel controller; after receiving the communication instruction of the epitope information, the multi-path controller writes the epitope information into the intelligent meter corresponding to the epitope; the intelligent management controller inquires whether the multi-channel controller epitope writing task is completed or not, and reads epitope information of a plurality of intelligent meter epitopes managed by the multi-channel controller when the task is completed; and the intelligent management controller judges whether the intelligent meter type information of the intelligent meter installed under the centralized metering system is matched with the corresponding epitope information according to the intelligent meter data packet information, and alarms if the intelligent meter type information is not matched with the corresponding epitope information, and records the abnormal installation state information. In the embodiment of the invention, the identification method can greatly improve the quick matching combination application and installation efficiency of the field intelligent meter so as to adapt to the flexible change of the power consumption requirement of a user.
Description
Technical Field
The invention relates to the field of multi-phase electric energy meter combination application, in particular to a multi-intelligent meter identification method under a centralized metering system and the centralized metering system.
Background
In recent decades, electronic intelligent electric energy meters in domestic and foreign power industries have been popularized and developed, and meanwhile, some differences still exist when power consumption demand schemes of industrial and commercial users and residential users are formulated. In the early-stage planning of the infrastructure, the initial installation condition and the user requirement can not be matched in a self-adaptive manner, whether a wrong meter is connected or not can not be judged based on the existing user foundation, or the installation fault of the intelligent meter and the like can not be acquired in time, and the electricity utilization scheme of a later-stage multi-phase user is difficult to define, so that the requirements of later-stage users on electricity utilization services in different stages can not be better met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and the embodiment of the invention provides a method for identifying multiple intelligent meters in a centralized metering system, which improves the quick matching combination and installation efficiency of on-site intelligent meters when the power consumption demand of a user changes through software modeling and hardware matching.
In order to solve the above technical problem, an embodiment of the present invention provides a method for identifying multiple smartmeters in a centralized metering system, where the centralized metering system includes: concentrate strapping table case, a plurality of smart meters, multi-channel controller and intelligent management controller, it is connected to a plurality of smart meter epitopes to concentrate the last three-phase electricity input connecting wire that is provided with of strapping table case, each smart meter in a plurality of smart meters is based on the smart meter epitope that corresponds that the smart meter type of smart meter is correlated with, multi-channel controller based on communication bus with intelligent management controller carries out the communication, multi-channel controller carries out the communication with a plurality of smart meter epitopes based on the communication mouth, wherein, the recognition method includes:
the intelligent management controller identifies the power-on state of the power grid based on the sensor signal, generates an epitope information communication instruction based on the power-on state of the power grid and sends the epitope information communication instruction to the multi-channel controller;
the multi-path controller receives the epitope information communication instruction and writes epitope information into the intelligent meter of the corresponding epitope based on the epitope information communication instruction;
the intelligent management controller inquires whether the multi-channel controller write epitope task is completed, and if the multi-channel controller write epitope task is inquired to be completed, epitope information of a plurality of intelligent meter epitopes managed on the multi-channel controller is read, wherein the epitope information comprises intelligent meter data packet information of an intelligent meter on a corresponding epitope;
and the intelligent management controller judges whether the type information of the intelligent meter installed under the centralized metering system is matched with the corresponding epitope information according to the intelligent meter data packet information, generates an alarm signal if the type information of the intelligent meter is not matched with the corresponding epitope information, and records the abnormal installation state information.
The multi-channel controller writes the epitope information into the intelligent meter of the corresponding epitope based on the epitope information communication instruction, and the method comprises the following steps:
and the intelligent management controller reads the version information of the multi-channel controller, judges whether the multi-channel controller is in normal communication or not, and records the abnormal communication state information if the version information cannot be read.
The multi-channel controller writes the epitope information into the intelligent meter of the corresponding epitope based on the epitope information communication instruction, and the method comprises the following steps:
based on the fact that the intelligent management controller and the multi-channel controller are in normal communication, the intelligent management controller reads the meter digit number of the intelligent meter which is currently and maximally supported by the multi-channel controller, judges whether the maximally supported meter digit number is matched with the meter digit number of the intelligent meter which is currently and maximally supported and managed by the intelligent management controller, and records meter digit matching abnormal state information if the maximally supported meter digit number is not matched with the meter digit number of the intelligent meter which is currently and controllably supported and managed by the intelligent management controller.
The smart meter type of the smart meter comprises: the intelligent meter comprises a single-phase intelligent meter, a two-phase intelligent meter and a three-phase intelligent meter, wherein the single-phase intelligent meter is associated with one intelligent meter position, the two-phase intelligent meter is associated with two intelligent meter positions, and the three-phase intelligent meter is associated with three intelligent meter positions.
The epitope information comprises data packet information corresponding to the epitope smart meter, and the data packet information comprises: the intelligent meter comprises an intelligent meter address, an intelligent meter type, intelligent meter version information, electric energy data of the intelligent meter, instant information, relay state and running state information.
The method further comprises the following steps:
the intelligent management controller sequentially carries out periodic reading and management on the electric energy data of the plurality of intelligent meters related to the plurality of intelligent meter epitopes to obtain the electric energy data of the current instantaneous quantities of the plurality of intelligent meters;
the intelligent management controller compares the electric energy data of the current instantaneous quantity with the electric energy data of the last instantaneous quantity, and if the electric energy data of the current instantaneous quantity is different from the electric energy data of the last instantaneous quantity, event alarm detection is carried out on the electric energy data of the current instantaneous quantity;
the intelligent management controller issues a 0-meter-position data reading request based on the communication bus, judges whether the communication bus responds to the request, and if response data exist, a newly installed intelligent meter is accessed into the centralized metering system;
the multi-path controller executes a new turn of epitope writing task, and after the newly installed intelligent meter obtains the effective epitope information written by the multi-path controller, the epitope number of the newly installed intelligent meter is updated and stored;
and after the intelligent management controller inquires that the multi-channel controller completes the task of writing the epitope, reading and updating the epitope information of the newly installed intelligent meter.
The method further comprises the following steps:
the intelligent management controller screens according to the number of user phases and the epitope information of the corresponding intelligent meter based on a switching-on/off command issued by an external system to obtain the epitope information of the user intelligent meter, and performs data command recombination on the switching-on/off command to generate a broadcast command;
according to the data of the broadcast command, all the intelligent meters connected to the communication bus receive the switching-on/off command based on the communication bus, and whether the epitope information of the intelligent meters is matched with the epitope information of the user intelligent meters is judged;
the epitope information of the intelligent meter is matched with the epitope information of the user intelligent meter, and the intelligent meter executes the switching-on and switching-off command and operates a built-in relay of the intelligent meter;
the intelligent management controller reads the relay state of the user intelligent meter based on the epitope information of the user intelligent meter in the recombined broadcast command data, and judges whether the user intelligent meter executes the switching-on/off command or not;
and based on the user intelligent meter executing the switching-on and switching-off command, the intelligent management controller judges whether the relay states of the user intelligent meter are consistent, and if so, the communication of the user intelligent meter is normal.
In addition, an embodiment of the present invention further provides a centralized metering system, where the centralized metering system includes: concentrate strapping table case, a plurality of smart meters, multi-channel controller and intelligent management controller, it is connected to a plurality of smart meter epitopes to concentrate the last three-phase electricity input connecting wire that is provided with of strapping table case, each smart meter in a plurality of smart meters is associating the smart meter epitope that corresponds based on the smart meter type of smart meter, multi-channel controller based on communication bus with intelligent management controller carries out the communication, multi-channel controller carries out the communication with a plurality of smart meter epitopes based on the communication mouth, wherein:
the intelligent management controller identifies the power-on state of the power grid based on the sensor signal, generates an epitope information communication instruction based on the power-on state of the power grid and sends the epitope information communication instruction to the multi-channel controller;
the multi-path controller receives the epitope information communication instruction and writes epitope information into the intelligent meter of the corresponding epitope based on the epitope information communication instruction;
the intelligent management controller inquires whether the multi-channel controller write epitope task is completed, and if the multi-channel controller write epitope task is inquired to be completed, epitope information of a plurality of intelligent meter epitopes managed on the multi-channel controller is read, wherein the epitope information comprises intelligent meter data packet information of an intelligent meter on a corresponding epitope;
and the intelligent management controller judges whether the type information of the intelligent meter installed under the centralized metering system is matched with the corresponding epitope information according to the intelligent meter data packet information, generates an alarm signal if the type information of the intelligent meter is not matched with the corresponding epitope information, and records the abnormal installation state information.
The smart meter type of the smart meter comprises: the intelligent meter comprises a single-phase intelligent meter, a two-phase intelligent meter and a three-phase intelligent meter, wherein the single-phase intelligent meter is associated with one intelligent meter position, the two-phase intelligent meter is associated with two intelligent meter positions, and the three-phase intelligent meter is associated with three intelligent meter positions.
In the embodiment of the invention, in order to solve the problem of insufficient functions of existing installation environment equipment in an electricity utilization AMI scheme, a centralized metering system is provided, in a hardware architecture mode built by a centralized metering meter box, an intelligent management controller, a multi-channel controller and a plurality of intelligent meters, the multi-channel controller carries out communication management on the plurality of intelligent meters, the intelligent management controller reads data packets of the plurality of intelligent meters managed on the multi-channel controller, and identifies the installation condition of a multi-phase user intelligent meter based on the power-on state of a power grid, so that an installer or the AMI system can more accurately analyze and solve the fault of the multi-phase user intelligent meter. In the process of flexibly changing the power consumption demand of a user, the centralized metering system can meet the demand of field combined application, and the single-phase intelligent meter is organically combined into the multiphase intelligent meter by utilizing software modeling and hardware matching, so that the installation efficiency is greatly improved, and the installation quality is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a centralized metering system according to an embodiment of the present invention;
FIG. 2 is a schematic wiring diagram of a multi-phase user smart meter disclosed in an embodiment of the present invention;
FIG. 3 is a schematic flowchart of a multi-smart meter identification method of a centralized metering system according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a method for identifying multiple smart meters in a centralized metering system according to another embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for identifying multiple smart meters in a centralized metering system according to yet another embodiment of the present invention;
FIG. 6 is a schematic diagram of the energy data accumulation of the user smart meter according to another embodiment of the disclosure;
fig. 7 is a schematic diagram illustrating the state discrimination of the built-in relay of the multi-phase user smart meter according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The identification method of the multiple intelligent meters under the centralized metering system is characterized by comprising the following steps: the intelligent management controller identifies the power-on state of the power grid based on the sensor signal, generates an epitope information communication instruction based on the power-on state of the power grid and sends the epitope information communication instruction to the multi-channel controller; the multi-path controller receives the epitope information communication instruction and writes epitope information into the intelligent meter of the corresponding epitope based on the epitope information communication instruction; the intelligent management controller inquires whether the multi-channel controller write epitope task is completed, and if the multi-channel controller write epitope task is inquired to be completed, epitope information of a plurality of intelligent meter epitopes managed on the multi-channel controller is read, wherein the epitope information comprises intelligent meter data packet information of an intelligent meter on a corresponding epitope; and the intelligent management controller judges whether the type information of the intelligent meter installed under the centralized metering system is matched with the corresponding epitope information according to the intelligent meter data packet information, generates an alarm signal if the type information of the intelligent meter is not matched with the corresponding epitope information, and records the abnormal installation state information.
In the embodiment of the invention, a centralized metering system is adopted to identify a plurality of intelligent meters, and the centralized metering system comprises: concentrate strapping table case, a plurality of smart meters, multi-channel controller and intelligent management controller, wherein, it is connected to a plurality of smart meter epitopes to concentrate the last three-phase electricity input connecting wire that is provided with of strapping table case, each smart meter in a plurality of smart meters is associating corresponding smart meter epitope based on the smart meter type, multi-channel controller based on the communication bus with intelligent management controller carries out the communication, multi-channel controller carries out the communication with a plurality of smart meter epitopes based on the communication mouth. The method for identifying the multiple intelligent meters based on the centralized metering system can meet the phase number requirement change of multi-phase users in the AMI electricity utilization solution.
Specifically, fig. 1 shows a schematic structural composition diagram of a centralized metering system in an embodiment of the present invention, where the centralized metering system includes: concentrate strapping table case, a plurality of smart meters, multi-channel controller and intelligent management controller, it is connected to a plurality of smart meter epitopes to concentrate the last three-phase electricity input connecting wire that is provided with of strapping table case, each smart meter in a plurality of smart meters is associating the smart meter epitope that corresponds based on the smart meter type of smart meter, multi-channel controller based on the communication bus with intelligent management controller carries out the communication, multi-channel controller carries out the communication with a plurality of smart meter epitopes based on the communication mouth.
Fig. 2 is a schematic wiring diagram of a multi-phase user smart meter disclosed in an embodiment of the present invention, in which a three-phase power input connection line arranged on a centralized meter box is connected to a plurality of smart meter epitopes from epitope 1 in a manner of a phase sequence a/B/C/a/B/C. According to the difference of the number of the electricity phases, users are divided into: single-phase user, two-phase user, three-phase user, the smart meter type that corresponds the smart meter is: the intelligent meter comprises a single-phase intelligent meter, a two-phase intelligent meter and a three-phase intelligent meter, wherein the single-phase intelligent meter is associated with one intelligent meter epitope, the two-phase intelligent meter is associated with two intelligent meter epitopes, and the three-phase intelligent meter is associated with three intelligent meter epitopes.
It should be noted that, the single-phase smart meter is flexibly installed on any one smart meter epitope according to the user requirements, the two-phase smart meter must be installed on two adjacent smart meter epitopes, the three-phase smart meter must be installed on three adjacent smart meter epitopes, and the three-phase smart meter is installed from the phase sequence A, which is more favorable for the management of the epitope information of the three-phase user smart meter.
In a specific implementation process, the intelligent management controller identifies a power-on state of a power grid based on a sensor signal, generates an epitope information communication instruction based on the power-on state of the power grid and sends the epitope information communication instruction to the multi-path controller; the multi-path controller receives the epitope information communication instruction and writes epitope information into the intelligent meter of the corresponding epitope based on the epitope information communication instruction; the intelligent management controller inquires whether the multi-channel controller write epitope task is completed, and if the multi-channel controller write epitope task is inquired to be completed, epitope information of a plurality of intelligent meter epitopes managed on the multi-channel controller is read, wherein the epitope information comprises intelligent meter data packet information of an intelligent meter on a corresponding epitope; and the intelligent management controller judges whether the type information of the intelligent meter installed under the centralized metering system is matched with the corresponding epitope information according to the intelligent meter data packet information, generates an alarm signal if the type information of the intelligent meter is not matched with the corresponding epitope information, and records the abnormal installation state information.
Based on the centralized metering system according to the embodiment of the present invention, fig. 3 to 7 illustrate the identification method of multiple smart meters in the centralized metering system in detail.
Referring to fig. 3, fig. 3 is a flow chart illustrating a multi-smart meter identification method of a centralized metering system according to an embodiment of the present invention.
As shown in fig. 3, a method for identifying multiple smart meters of a centralized metering system includes the following steps:
s101, based on a sensor signal, an intelligent management controller identifies a power-on state of a power grid;
it should be noted that, after the power grid is powered on, the intelligent management controller starts to execute a meter searching task, determines the installation condition of the user intelligent meter, and configures parameters of the intelligent meter installed in the meter box by using authorized software according to the phase number requirement of the user.
S102, the intelligent management controller reads version information of a multi-path controller;
specifically, the intelligent management controller reads version information of the multi-channel controller based on an RS485 communication bus, if the version information is read, step S103 is performed, if the version information cannot be read, the intelligent management controller cannot normally communicate with the multi-channel controller, and the intelligent management controller stores an abnormal event alarm signal and does not perform the following steps.
S103, the intelligent management controller reads the maximum table digit supported by the multi-path controller;
specifically, the intelligent management controller reads the maximum number of bits supported by the multi-path controller based on the version information read to the multi-path controller, and when the intelligent management controller reads the 0 bit position abnormally replied by the multi-path controller or is greater than the maximum number of bits supported, the function of the multi-path controller is defined to be not matched with the function of the intelligent management controller, and an abnormal event warning signal is stored.
It should be noted that the multi-channel controller needs to support multi-channel switches based on the hardware design characteristics thereof, and the maximum number of matching epitopes is 12, 24 or 36 in general, so that the maximum number of epitopes supported by the multi-channel controller does not exceed 36 at most.
S104, generating an epitope information communication instruction by the intelligent management controller, and sending the epitope information communication instruction to the multi-path controller;
s105, the multi-channel controller receives the epitope information communication instruction and writes epitope information into an intelligent meter corresponding to the epitope;
specifically, based on an RS485 communication bus, the multi-channel controller receives the epitope information communication instruction sent by the intelligent management controller, the epitope information communication instruction triggers the multi-channel controller to execute an epitope writing task, and the multi-channel controller writes the epitope information into an intelligent meter corresponding to an epitope from epitope 1 to the maximum epitope number supported by the multi-channel controller.
It should be noted that, before the multi-path controller executes the task of writing the epitope, the intelligent management controller firstly identifies that the intelligent meter with 0 epitope is installed in the meter box, and then triggers the multi-path controller to write the epitope information into the intelligent meter with the corresponding epitope, so that after the multi-path controller executes the task of writing the epitope, the installed intelligent meter with the corresponding epitope and normal communication has a non-0 and unique epitope number and unique epitope information.
S106, the intelligent management controller inquires whether the multi-channel controller completes the epitope writing task, if the epitope writing task is completed, the step S107 is executed, otherwise, the step S105 is executed continuously;
it should be noted that the time for the intelligent management controller to query whether the write epitope task is completed is limited, if it is queried that the write epitope task is completed by the multi-path controller within the specified time, the process proceeds to step S107, and if it is still queried that the situation that the intelligent meter cannot write the epitope information exists within the specified time, the intelligent management controller marks the installation abnormal state information to the intelligent meter and then proceeds to step S107.
S107, the intelligent management controller reads the epitope information of a plurality of intelligent meter epitopes managed on the multi-path controller;
specifically, in step S105, the multi-way controller has written the epitope information into the smart meter corresponding to the epitope, so that the smart management controller sequentially reads the epitope information of the plurality of smart meter epitopes managed on the multi-way controller from epitope 1 to the maximum number of table bits supported by the multi-way controller.
It should be noted that the epitope information includes data packet information corresponding to the epitope smart table, where the data packet information includes: the intelligent meter comprises an intelligent meter address, an intelligent meter type, intelligent meter version information, electric energy data of the intelligent meter, instant information, relay state and running state information.
S108, the intelligent management controller judges whether the type of the intelligent meter installed under the metering system is matched with the corresponding epitope information or not based on the recognition algorithm, if so, the step S109 is carried out, and if not, the step S110 is carried out;
it should be noted that the smart meter types of the smart meter include: the intelligent meter comprises a single-phase intelligent meter, a two-phase intelligent meter and a three-phase intelligent meter, wherein the single-phase intelligent meter is associated with one intelligent meter position, the two-phase intelligent meter is associated with two intelligent meter positions, and the three-phase intelligent meter is associated with three intelligent meter positions.
S109, the intelligent management controller identifies that the type of the intelligent meter is matched with the corresponding epitope information, and the intelligent meter is normally installed;
s110, the intelligent management controller identifies that the type of the intelligent meter is not matched with the corresponding epitope information, the intelligent meter is abnormally installed, and the intelligent management controller records abnormal installation state information for the intelligent meter.
In the embodiment of the invention, if the smart meters of some multi-phase users cannot communicate with the multi-channel controller based on the communication port due to power failure or abnormal damage, the smart management controller cannot read the epitope information of the smart meters of some multi-phase users, so that the smart management controller cannot perform epitope information matching judgment.
In the embodiment of the invention, the intelligent management controller identifies the power-on state of a power grid, the multi-channel controller executes a meter position writing task, the intelligent management controller reads and manages meter position information of an intelligent meter installed on a corresponding meter position in a centralized meter box, and in the process, the intelligent management controller completes a meter searching and registering task.
On the basis of the above embodiment of fig. 3, the identification method further includes:
referring to fig. 4, fig. 4 is a schematic flowchart illustrating a multi-smart meter identification method of a centralized metering system according to another embodiment of the present disclosure;
as shown in fig. 4, the intelligent management controller determines whether a newly installed intelligent meter is accessed to the centralized metering system according to the read electric energy data, and the steps include:
s201, the intelligent management controller sequentially reads and manages electric energy data of a plurality of intelligent meters related to a plurality of intelligent meter epitopes in a periodic manner to obtain electric energy data of current instantaneous quantities of the plurality of intelligent meters;
specifically, the intelligent management controller recognizes the intelligent meter information of the corresponding epitope currently managed based on the acquired management intelligent meter information, communicates with the intelligent meters based on an RS485 communication bus, and sequentially reads the electric energy data of the instantaneous quantities of the intelligent meters from epitope 1 to the maximum meter number supported by the multi-path controller.
The multi-phase users need to sum up the electric energy data corresponding to the intelligent meters, as shown in fig. 6, a single-phase user only needs to read the electric energy data corresponding to a single intelligent meter, two-phase users need to read the electric energy data corresponding to two intelligent meters and then accumulate the electric energy data, and a three-phase user needs to read the electric energy data corresponding to three intelligent meters and then accumulate the electric energy data.
It should be noted that, when the intelligent management controller periodically reads and manages the electric energy data, the electric energy data read twice in the adjacent time, that is, the electric energy data of the current instantaneous quantity and the electric energy data of the last instantaneous quantity, are stored.
S202, the intelligent management controller compares the electric energy data of the current instantaneous quantity with the electric energy data of the last instantaneous quantity to judge whether difference exists,
if the difference exists, the intelligent management controller carries out event alarm detection on the electric energy data of the current instantaneous quantity based on the judgment basis of the abnormal event, and the step S203 is carried out, otherwise, the step S201 is carried out continuously;
it should be noted that, the data packet of the installed smart meter is stored in the smart management controller to generate archive management, so that when the smart management controller reads periodic data, if there is a newly installed smart meter, the smart management controller also reads the electric energy data of the newly installed smart meter, and identifies an abnormal condition of the current electric energy data according to an abnormal event judgment basis.
S203, the intelligent management controller sends a 0 epitope read data request based on the communication bus, judges whether the communication bus responds to the request,
if the intelligent management controller inquires the response data, judging that the intelligent meter with the newly installed 0 meter position is accessed to the intelligent meter position of the centralized meter box, and entering step S204, otherwise, continuing to enter step S201;
s204, the multi-path controller executes a new turn of epitope writing task, and after the newly installed intelligent meter obtains the effective epitope information written by the multi-path controller, the epitope number of the newly installed intelligent meter is updated and stored;
it should be noted that, when the multi-path controller writes the epitope information into the smart table corresponding to the epitope, the smart table originally storing the epitope information may actually be repeatedly written with the same epitope information, and the newly installed smart table with 0 epitope will be written with a certain unique epitope information, and the epitope number of the newly installed smart table will be updated to a non-0 epitope number, where the certain unique epitope information must be one corresponding epitope information from epitope 1 to the maximum epitope number supported by the multi-path controller.
S205, after the intelligent management controller inquires that the multi-channel controller completes the task of writing the epitope, reading and updating the epitope information of the newly installed intelligent meter.
It should be noted that, when the smart management controller reads and updates the epitope information of the newly installed smart meter, it actually updates the archive information synchronously, so as to continue to perform periodic data reading.
In the embodiment of the invention, when the multi-phase user intelligent meter is suddenly powered off and then powered on, the epitope information of the multi-phase intelligent meter is lost, and the intelligent management controller triggers the multi-path controller to write the epitope task again in the process of inquiring whether a newly installed intelligent meter is accessed into the centralized meter box, the originally stored epitope information is written into the multi-phase intelligent meter.
In the embodiment of the invention, the intelligent management controller executes a meter reading task, and actually, the meter reading task is realized by identifying the newly installed intelligent meter, writing in epitope information and updating management, and the process is specified to be completed within 30 seconds, wherein the intelligent management controller continuously detects whether the newly installed intelligent meter with the 0 epitope is accessed into the centralized meter box by using the comparison result of adjacent two times of electric energy data through periodic reading of the electric energy data, so as to adapt to the flexible change of the phase number requirement of a user and update and manage the archive data of the intelligent management controller in time.
On the basis of the above embodiment of fig. 3, the identification method further includes:
referring to fig. 5, fig. 5 is a schematic flowchart illustrating a multi-smart meter identification method of a centralized metering system according to another embodiment of the present invention;
as shown in fig. 5, based on the switching command issued by the external system, the intelligent management controller determines whether the relay states of the user intelligent meter are consistent, including the following steps:
s301, the intelligent management controller conducts data command recombination on the received brake opening and closing command based on the brake opening and closing command issued by an external system to generate a broadcast command;
specifically, an external system issues a switching-on/off command, the intelligent management controller receives the switching-on/off command, performs data command recombination on the switching-on/off command, performs screening according to the number of user phases and epitope information corresponding to the smart meter, and recombines the data into a broadcast command, where the data of the broadcast command includes: the switching-on/off command and the epitope information of the user intelligent meter which needs to execute the switching-on/off command, wherein the multi-phase user comprises a plurality of pieces of epitope information.
S302, according to data of a broadcast command, all the smart meters connected to the communication bus receive the switching-on/off command based on the communication bus, whether the epitope information of the smart meters is matched with the epitope information of the user smart meter is judged, if yes, the step S303 is executed, and if not, the step S302 is executed continuously;
it should be noted that, after reading the epitope information of the epitopes of the multiple smart meters managed on the multi-path controller based on the RS485 communication bus, the smart management controller directly establishes a connection with the multiple smart meters, so that when the smart management controller issues the switching command, the smart management controller only needs to directly communicate with the multiple smart meters on the bus through the communication bus.
S303, matching the epitope information of the intelligent meter with the epitope information of the user intelligent meter, and executing the switching-on/off command by the intelligent meter to operate a built-in relay of the intelligent meter;
it should be noted that the smart meter has a function of automatically identifying the switching on/off command, and because the epitope information corresponding to the smart meter is unique, the situation that a plurality of smart meters simultaneously identify the same epitope information is not generated under normal conditions.
S304, the intelligent management controller reads the relay state of the user intelligent meter based on the epitope information of the user intelligent meter in the recombined broadcast command data, judges whether the user intelligent meter executes the switching-on/off command, if so, enters step S305, otherwise, continues to enter step S302;
specifically, the recombined broadcast command data includes epitope information of a user smart meter which needs to execute a switching-on/off command, the smart management controller reads whether the current state of a relay of the user smart meter is in an updated state or not based on the epitope information of the user smart meter, and thus, whether the user smart meter executes the switching-on/off command or not is judged, wherein two-phase users sequentially read the relay states corresponding to two smart meters, and three-phase users sequentially read the relay states corresponding to three smart meters.
It should be noted that the intelligent management controller determines whether the current state of the relay of the smart meter is in an updated state, and determines, by using an identification algorithm, the current state of the relay of the smart meter from the previous state, if the current state is consistent with the previous state, the smart meter does not execute the switching-on/off command, and if the current state is not consistent with the previous state, the smart meter executes the switching-on/off command.
S305, based on the user intelligent meter executing the switching-on and switching-off command, the intelligent management controller judges whether the relay states of the user intelligent meter are consistent;
s306, if the relay states of the user intelligent meter are consistent, judging that the communication of the user intelligent meter is normal;
specifically, as shown in fig. 7, when the external system issues a switch-on command, the states of the internal relays of the three smartmeters corresponding to the three-phase user are all closed states, and when the external system issues a switch-off command, the states of the internal relays of the three smartmeters corresponding to the three-phase user are all open states, so that it is determined that the communication of the three-phase user smartmeters is normal.
S307, if the relay states of the user intelligent meters are not consistent, judging that the communication of the user intelligent meters is abnormal, and recording the abnormal communication state information of the intelligent meters by the intelligent management controller.
Specifically, the recognizing, by the intelligent management controller, that the relay states of the user intelligent meter are inconsistent includes: when the state of a built-in relay of one intelligent meter is inconsistent with the states of built-in relays of the other two intelligent meters in the three-phase intelligent meter, judging that the communication of the three-phase user intelligent meter is abnormal, wherein the abnormal communication condition comprises the following steps:
when an external system issues a closing command, the state of a built-in relay of one or more intelligent meters in three intelligent meters corresponding to the three-phase user is in a disconnection state, and the intelligent management controller records communication abnormal state information of the intelligent meters in the disconnection state;
when an external system issues a switching-off command, the state of a built-in relay of one or more intelligent meters in three intelligent meters corresponding to the three-phase user is a closed state, and the intelligent management controller records communication abnormal state information for the intelligent meters in the closed state.
It should be noted that, when an external system issues a switch-on command, the user smart meter executes an operation of closing the built-in relay, and at this time, if the smart management controller reads that a voltage is present at the rear end of the relay of the user smart meter, it is determined that the user smart meter has a power stealing phenomenon, and the smart management controller issues a switch-off command to force the user smart meter to disconnect the built-in relay based on the safety processing of an unconventional event, so as to ensure the power consumption safety of the user.
In the embodiment of the invention, when part of the intelligent meters of the multi-phase users are in a communication failure state, the intelligent management controller cannot communicate with the part of the intelligent meters based on the communication bus, and the part of the intelligent meters cannot execute a switching-on/off command, so that the intelligent management controller detects that the relay states of the multi-phase users are inconsistent and records abnormal state information of the intelligent meters.
In the embodiment of the invention, in order to solve the problem of insufficient functions of existing installation environment equipment in an electricity utilization AMI scheme, a centralized metering system is provided, in a hardware architecture mode built by a centralized metering meter box, an intelligent management controller, a multi-channel controller and a plurality of intelligent meters, the multi-channel controller carries out communication management on the plurality of intelligent meters, the intelligent management controller reads data packets of the plurality of intelligent meters managed on the multi-channel controller, and identifies the installation condition of a multi-phase user intelligent meter based on the power-on state of a power grid, so that an installer or the AMI system can more accurately analyze and solve the fault of the multi-phase user intelligent meter. In the process of flexibly changing the power consumption demand of a user, the centralized metering system can meet the demand of field combined application, and the single-phase intelligent meter is organically combined into the multiphase intelligent meter by utilizing software modeling and hardware matching, so that the installation efficiency is greatly improved, and the installation quality is ensured.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, or the like.
In addition, the above detailed description is provided for the recognition method of multiple smart meters in a centralized metering system according to the embodiment of the present invention, and a specific example should be used herein to explain the principle and the implementation manner of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A method for identifying multiple intelligent meters under a centralized metering system is characterized in that the centralized metering system comprises the following steps: concentrate strapping table case, a plurality of smart meters, multi-channel controller and intelligent management controller, it is connected to a plurality of smart meter epitopes to concentrate the last three-phase electricity input connecting wire that is provided with of strapping table case, each smart meter in a plurality of smart meters is associating the smart meter epitope that corresponds based on the type of smart meter, multi-channel controller based on the communication bus with intelligent management controller carries out the communication, multi-channel controller carries out the communication with a plurality of smart meter epitopes based on the communication mouth, the identification method includes:
the intelligent management controller identifies the power-on state of the power grid based on the sensor signal, generates an epitope information communication instruction based on the power-on state of the power grid and sends the epitope information communication instruction to the multi-channel controller;
the multi-path controller receives the epitope information communication instruction and writes epitope information into the intelligent meter of the corresponding epitope based on the epitope information communication instruction;
the intelligent management controller inquires whether the multi-channel controller write epitope task is completed, and if the multi-channel controller write epitope task is inquired to be completed, epitope information of a plurality of intelligent meter epitopes managed on the multi-channel controller is read, wherein the epitope information comprises intelligent meter data packet information of an intelligent meter on a corresponding epitope;
and the intelligent management controller judges whether the type information of the intelligent meter installed under the centralized metering system is matched with the corresponding epitope information according to the intelligent meter data packet information, generates an alarm signal if the type information of the intelligent meter is not matched with the corresponding epitope information, and records the abnormal installation state information.
2. The method for identifying multiple smart meters under a centralized metering system as recited in claim 1, wherein the multi-path controller writes the epitope information into the smart meter of the corresponding epitope based on the epitope information communication command, and comprises: and the intelligent management controller reads the version information of the multi-channel controller, judges whether the multi-channel controller is in normal communication or not, and records the abnormal communication state information if the version information cannot be read.
3. The method for identifying multiple smart meters in a centralized metering system according to claim 2, wherein the multi-path controller writes the epitope information into the smart meter corresponding to the epitope based on the epitope information communication command, and comprises: based on the fact that the intelligent management controller and the multi-channel controller are in normal communication, the intelligent management controller reads the meter digit number of the intelligent meter which is currently and maximally supported by the multi-channel controller, judges whether the maximally supported meter digit number is matched with the meter digit number of the intelligent meter which is currently and maximally supported and managed by the intelligent management controller, and records meter digit matching abnormal state information if the maximally supported meter digit number is not matched with the meter digit number of the intelligent meter which is currently and controllably supported and managed by the intelligent management controller.
4. The method of claim 1, wherein the smart meter types of the smart meters comprise: the intelligent meter comprises a single-phase intelligent meter, a two-phase intelligent meter and a three-phase intelligent meter, wherein the single-phase intelligent meter is associated with one intelligent meter position, the two-phase intelligent meter is associated with two intelligent meter positions, and the three-phase intelligent meter is associated with three intelligent meter positions.
5. The method for identifying multiple smart meters under a centralized metering system according to claim 1, wherein the epitope information includes packet information corresponding to the epitope smart meter, and the packet information includes: the intelligent meter comprises an intelligent meter address, an intelligent meter type, intelligent meter version information, electric energy data of the intelligent meter, instant information, relay state and running state information.
6. The method of claim 1, further comprising:
the intelligent management controller sequentially carries out periodic reading and management on the electric energy data of the plurality of intelligent meters related to the plurality of intelligent meter epitopes to obtain the electric energy data of the current instantaneous quantities of the plurality of intelligent meters;
the intelligent management controller compares the electric energy data of the current instantaneous quantity with the electric energy data of the last instantaneous quantity, and if the electric energy data of the current instantaneous quantity is different from the electric energy data of the last instantaneous quantity, event alarm detection is carried out on the electric energy data of the current instantaneous quantity;
the intelligent management controller issues a 0-meter-position data reading request based on the communication bus, judges whether the communication bus responds to the request, and if response data exist, a newly installed intelligent meter is accessed into the centralized metering system;
the multi-path controller executes a new turn of epitope writing task, and after the newly installed intelligent meter obtains the effective epitope information written by the multi-path controller, the epitope number of the newly installed intelligent meter is updated and stored;
and after the intelligent management controller inquires that the multi-channel controller completes the task of writing the epitope, reading and updating the epitope information of the newly installed intelligent meter.
7. The method of claim 1, further comprising:
the intelligent management controller screens according to the number of user phases and the epitope information of the corresponding intelligent meter based on a switching-on/off command issued by an external system to obtain the epitope information of the user intelligent meter, and performs data command recombination on the switching-on/off command to generate a broadcast command;
according to the data of the broadcast command, all the intelligent meters connected to the communication bus receive the switching-on/off command based on the communication bus, and whether the epitope information of the intelligent meters is matched with the epitope information of the user intelligent meters is judged;
the epitope information of the intelligent meter is matched with the epitope information of the user intelligent meter, and the intelligent meter executes the switching-on and switching-off command and operates a built-in relay of the intelligent meter;
the intelligent management controller reads the relay state of the user intelligent meter based on the epitope information of the user intelligent meter in the recombined broadcast command data, and judges whether the user intelligent meter executes the switching-on/off command or not;
and based on the user intelligent meter executing the switching-on and switching-off command, the intelligent management controller judges whether the relay states of the user intelligent meter are consistent, and if so, the communication of the user intelligent meter is normal.
8. A centralized metering system, comprising: concentrate strapping table case, a plurality of smart meters, multi-channel controller and intelligent management controller, it is connected to a plurality of smart meter epitopes to concentrate the last three-phase electricity input connecting wire that is provided with of strapping table case, each smart meter in a plurality of smart meters is associating the smart meter epitope that corresponds based on the smart meter type of smart meter, multi-channel controller based on communication bus with intelligent management controller carries out the communication, multi-channel controller carries out the communication with a plurality of smart meter epitopes based on the communication mouth, wherein:
the intelligent management controller identifies the power-on state of the power grid based on the sensor signal, generates an epitope information communication instruction based on the power-on state of the power grid and sends the epitope information communication instruction to the multi-channel controller;
the multi-path controller receives the epitope information communication instruction and writes epitope information into the intelligent meter of the corresponding epitope based on the epitope information communication instruction;
the intelligent management controller inquires whether the multi-channel controller write epitope task is completed, and if the multi-channel controller write epitope task is inquired to be completed, epitope information of a plurality of intelligent meter epitopes managed on the multi-channel controller is read, wherein the epitope information comprises intelligent meter data packet information of an intelligent meter on a corresponding epitope;
and the intelligent management controller judges whether the type information of the intelligent meter installed under the centralized metering system is matched with the corresponding epitope information according to the intelligent meter data packet information, generates an alarm signal if the type information of the intelligent meter is not matched with the corresponding epitope information, and records the abnormal installation state information.
9. The centralized metering system of claim 8 wherein the smart meter types of the smart meter comprise: the intelligent meter comprises a single-phase intelligent meter, a two-phase intelligent meter and a three-phase intelligent meter, wherein the single-phase intelligent meter is associated with one intelligent meter position, the two-phase intelligent meter is associated with two intelligent meter positions, and the three-phase intelligent meter is associated with three intelligent meter positions.
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| CN110991197A (en) * | 2019-12-02 | 2020-04-10 | 浙江中新电力工程建设有限公司自动化分公司 | Epitope recognition method of smart meter box based on NFC electronic tag |
| CN111722544A (en) * | 2020-05-28 | 2020-09-29 | 中国能源建设集团广东省电力设计研究院有限公司 | Artificial intelligence measurement non-inductive design operation system and operation method thereof |
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