CN114373291A

CN114373291A - Method for automatically registering G3-PLC electric meter to master station

Info

Publication number: CN114373291A
Application number: CN202210060327.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Leaguer Microelectronics Co ltd
Current assignee: Leaguer Microelectronics Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-04-19
Anticipated expiration: 2042-01-19
Also published as: CN114373291B

Abstract

The invention provides a method for automatically registering a G3-PLC electric meter to a master station, which comprises the following steps: g3-the PLC electric meter submits a registration request to the concentrator; the concentrator analyzes and processes the registration request submitted by the G3-PLC electric meter and determines whether to push the registration request to a master station for processing according to the white list condition of the sub-modules; and the master station analyzes and processes the received registration request for processing. The registration request is actively and continuously sent to the concentrator main module through the G3-PLC electric meter slave module, then the concentrator determines whether to push the request to a main station for processing according to the white list condition, and the original uplink main station drive of the registration online flow of the online electric meter of the whole electric power system is changed into the downlink electric meter drive. The problem that the platform area and the ammeter are severely bound and are not flexible in installation in the prior art is effectively solved.

Description

Method for automatically registering G3-PLC electric meter to master station

Technical Field

The invention relates to the technical field of intelligent power grid communication, in particular to a method for automatically registering a G3-PLC electric meter to a master station.

Background

In the service process of the whole electricity consumption information acquisition system, the most important and initial steps are initialization and registration of an electric meter, for a traditional electric meter registration scheme, a common method is that a user directly introduces archive information of the electric meter into a main station system in a manual mode, and then adds an electric meter archive into a white list of a concentrator in a mode of issuing an instruction by operating the main station system. For example: when a concentrator of a certain district breaks down, all the electric meters in the jurisdiction of the district cannot be read normally by adopting the traditional scheme; or the PLC carrier signal strength of the electricity meter M in a certain area a and its jurisdiction is much weaker than the signal strength of the area B and the electricity meter for a long time, and at this time, because of the design defect of the existing system itself, the electricity meter M can never use the concentrator of the area B to read, so that the fixed binding strategy registration scheme can cause the problem that the collection efficiency of the electricity meter is low and even the collection can not be performed for a long time.

The above background disclosure is only for the purpose of assisting understanding of the concept and technical solution of the present invention and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.

Disclosure of Invention

The invention provides a method for automatically registering a G3-PLC electric meter to a master station in order to solve the existing problems.

In order to solve the above problems, the technical solution adopted by the present invention is as follows:

a method for automatically registering a G3-PLC electric meter to a master station comprises the following steps: s1: g3-the PLC electric meter submits a registration request to the concentrator; s2: the concentrator analyzes and processes the registration request submitted by the G3-PLC electric meter and determines whether to push the registration request to a master station for processing according to the white list condition of the sub-modules; s3: and the master station analyzes and processes the received registration request for processing.

Preferably, the G3-PLC electric meter comprises a meter and an electric meter slave module; the concentrator comprises a host and a main module; the G3-PLC meter submitting the registration request to the concentrator includes: s11: G3-PLC standard has three working frequency bands of CenA/FCC/FCCH, before initiating MAC/PHY layer communication, frequency band parameters are configured and initialized according to prefabricated parameters; s12: in the G3-PLC network networking routing process, the electric meter slave module of the G3-PLC electric meter preferentially searches for a master node with the optimal signal according to a preset frequency band, and if network access fails in the searching process, the master node is sequentially switched to other frequency bands to try.

Preferably, the frequency band parameter is FCC.

Preferably, the frequency band parameter is modified before factory shipment or in the field and stored in the external flash memory card.

Preferably, the G3-PLC electric meter and the concentrator adopt the following maintenance mechanism in the G3-PLC network during the network operation: the electric meter slave module initiates heartbeat detection according to a first preset time length, the master module of the concentrator is expected to respond, and if no response exists within continuous preset heartbeat times, the PLC network communication is judged to be abnormal; the G3-PLC ammeter automatically restores to a new table registration state, and new table registration is repeatedly executed to the concentrator; and/or the electric meter slave module is in periodic communication with the master module of the concentrator, if no communication activity exists within a second preset time period, the electric meter slave module is judged to be temporarily disconnected, and the concentrator is enabled not to read the meter where the electric meter slave module is located; and if the master module of the concentrator receives the heartbeat of the slave module of the electric meter again, clearing the temporary loss state, so that the concentrator can normally read the meter of the slave module of the electric meter next time.

Preferably, the primary module of the concentrator is configured to: providing a host management interface to configure working parameters and data, wherein the working parameters and data comprise the sub-module white list, a registration mode and a routing table, and after the sub-module white list, the registration mode and the routing table are powered on, the sub-module white list is obtained from the host and works based on the sub-module white list; if the G3-PLC electric meter applying for network access is not in the sub-module white list, refusing network access and pushing the registration application to the host; and if the host computer allows the G3-PLC electric meter to be accessed to the network, updating the meter file to the host computer, synchronously updating the sub-module white list, and waiting for the next network access application of the G3-PLC electric meter.

Preferably, the analyzing and processing the received registration request by the primary station includes: if the G3-PLC electric meter is not registered in any concentrator, allowing the G3-PLC electric meter to be registered in the concentrator, and updating the sub-module white list of the concentrator and configuring parameters; and the master station refreshes the memory and the file of the master station electric meter, writes the registration success record into the database.

Preferably, the analyzing and processing the received registration request by the primary station includes: and if the G3-PLC electric meter has registered other concentrators and the interval between the last registration time and the new application time is less than a third preset time, refusing to register.

Preferably, the analyzing and processing the received registration request by the primary station includes: if the G3-PLC electric meter has registered other concentrators and the interval between the last registration time and the new application time is greater than the third preset time length, deleting the electric meter file record in the submodule white list of the concentrator which has been registered, and then adding the electric meter file record to the submodule white list of the concentrator which newly applies.

The invention also provides a computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 9.

The invention has the beneficial effects that: the utility model provides a method that G3-PLC ammeter registers to main website automatically, through G3-PLC ammeter slave module initiatively constantly send the registration request to concentrator main module, then the concentrator decides whether to push this request to the scheme that main website was handled according to the white list condition, has changed the registration online flow of the online ammeter of whole electric power system from the original ascending main website drive into the drive of downlink ammeter. The problem that the platform area and the ammeter are severely bound and are not flexible in installation in the prior art is effectively solved.

Further, compared with the prior art, the device can automatically solve the abnormal situation of flow execution failure in each stage of PLC electric meter registration, and ensures the consistency of data of the master station, the concentrator and the electric meter. For example: under the condition that the concentrator is powered off or network communication is unstable, the master station can solve the problem of failed addition and deletion of a white list of the new concentrator and the old concentrator through various online retry strategies, so that the whole data synchronization is ensured, and the dynamic and flexible network data synchronization system is dynamic, stable and safe.

Drawings

Fig. 1 is a schematic diagram of a method for automatically registering a G3-PLC electric meter to a master station according to an embodiment of the present invention.

Fig. 2 is a flow chart of a G3-PLC meter requesting registration with a concentrator in an embodiment of the present invention.

Fig. 3 is a flow chart of network maintenance of electric meters in network operation in the embodiment of the invention.

Fig. 4 is a flowchart of network maintenance performed by a concentrator on the network according to an embodiment of the present invention.

Fig. 5 is a flowchart of the master station processing the electric meter registration request in the embodiment of the present invention.

Fig. 6 is a timing chart of the master station processing the electric meter registration request in the embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the embodiments of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for either a fixing function or a circuit connection function.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be in any way limiting of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1, the present invention provides a method for automatically registering a G3-PLC electric meter to a master station, comprising the steps of:

s1: g3-the PLC electric meter submits a registration request to the concentrator;

s2: the concentrator analyzes and processes the registration request submitted by the G3-PLC electric meter and determines whether to push the registration request to a master station for processing according to the white list condition of the sub-modules;

s3: and the master station analyzes and processes the received registration request for processing.

The device actively and continuously sends the registration request to the concentrator main module through the G3-PLC electric meter slave module, then the concentrator determines whether to push the request to the main station for processing according to the white list condition, and the registration online process of the online electric meter of the whole electric power system is changed from the original uplink main station drive into the downlink electric meter drive. The problem that the platform area and the ammeter are severely bound and are not flexible in installation in the prior art is effectively solved.

According to the prior art scheme, the electric meters are required to be installed in the appointed areas, but in practice, the installation areas where the electric meters are located are old, wiring is disordered and complex, and the areas where the electric meters are located cannot be determined, at the moment, the concentrator main modules with the best signal strength need to be selected for pairing according to the actual conditions of the field, if the device disclosed by the invention is adopted, the system can dynamically plan the electric meter registration topological structure in the areas where the concentrators are located, the load balance of the concentrators can be realized under the condition that the carrier signals of the electric meters are optimal, and a certain concentrator is prevented from being mounted with more meters.

Each step is explained in detail as follows.

Step S1: g3-the PLC electric meter submits a registration request to the concentrator; the electric meter is composed of a meter and an electric meter slave module, the concentrator is composed of a host and a master module, and service communication between the electric meter and the concentrator needs to be carried out through respective PLC modules.

As shown in fig. 2, it is embodied as:

the G3-PLC ammeter comprises a meter and a slave module, the system registration comprises the processes of PLC meter registration, network maintenance, heartbeat mechanism and the like, the whole process is automatically completed in PLC communication, after the meter and a concentrator are simultaneously electrified, the meter slave module automatically reads the meter serial number, randomly delays for 0-300 seconds, then submits registration network access application to a concentrator master module, and the whole process works according to the following process specifications:

the G3-PLC specification has three working frequency bands of CenA/FCC/FCCH, before initiating MAC/PHY layer communication, frequency band parameters need to be configured and initialized according to prefabricated parameters;

2. defaulting the frequency band parameters to FCC to obtain the optimal communication performance and the maximum application range;

3. the frequency band parameters can be modified before delivery or on site and stored in an external FLASH;

4. in the G3-PLC networking routing process, the electric meter slave module preferentially searches for a master node with the optimal signal according to a prefabricated frequency band, and if a certain frequency band fails to access the network, the slave module is sequentially switched to other frequency bands to try. The automatic frequency band switching function has two problems: firstly, the network access efficiency is reduced, and the time consumption is too long; secondly, the problem is caused by the inconsistent time sequence of the MAC/PHY layer in the operation process.

For PLC table registration, it should be noted that the table meter is rejected after the first registration application because it is not in the concentrator white list. After a delay of 5 minutes, the meter will initiate a second registration application to the same concentrator. If the concentrator is rejected for 3 times continuously, trying to initiate application to other concentrators, and polling all the concentrators; and switching to other frequency bands (CenA- > FCC- > FCCH) in sequence until the registration is successful.

It is understood that all the above continuous rejection times and delays can be adjusted according to practical situations in practical applications.

After the meter successfully finishes the registration, the subordinate main concentrator and the working frequency band are memorized, the main concentrator is automatically searched after the next power-on, and the meter is accessed to the network according to the stored working frequency band.

In addition, during the operation of the meter and the concentrator, the G3-PLC network adopts the following maintenance mechanism:

the electric meter slave module initiates heartbeat detection according to a first preset time length, the master module of the concentrator is expected to respond, and if no response exists within continuous preset heartbeat times, the PLC network communication is judged to be abnormal; the G3-PLC ammeter automatically restores to a new table registration state, and new table registration is repeatedly executed to the concentrator;

and/or the electric meter slave module is in periodic communication with the master module of the concentrator, if no communication activity exists within a second preset time period, the electric meter slave module is judged to be temporarily disconnected, and the concentrator is enabled not to read the meter where the electric meter slave module is located; and if the master module of the concentrator receives the heartbeat of the slave module of the electric meter again, clearing the temporary loss state, so that the concentrator can normally read the meter of the slave module of the electric meter next time.

As shown in fig. 3, the meter slave module will initiate heartbeat detection at 30-minute intervals, expect the concentrator master module to respond, and if 4 consecutive heartbeats do not respond (120 minutes), it is determined that the PLC network communication is abnormal. And after the abnormal condition is judged, the electric meter automatically restores to a new table registration state, and the new table registration process is repeatedly executed to the concentrator. Possible causes of network anomalies are: the concentrator changes the white list, removes the sub-table, the communication link concentrator or changes the GMK communication key, etc.

As shown in fig. 4, the slave electric meter module communicates with the master concentrator module periodically, and if no communication activity exists for 90 minutes continuously, the slave module is determined to be "temporarily lost", so that the concentrator does not read the meter where the slave module is located; if the master module receives the heartbeat of the slave module again, the temporary disconnection state is cleared, so that the concentrator can normally read the meter where the slave module is located next time.

For network maintenance and heartbeat mechanisms, it should be noted that the recommended range of the heartbeat interval is 20-40 minutes, the recommended range of the heartbeat retry times is 3-6 times, and the recommended range of the maximum no-communication activity timeout time is 60-240 minutes, but all the recommended default values are given according to actual production test experience, and a user can perform custom adjustment according to actual conditions, and only the maximum no-communication activity timeout time needs to be longer than the heartbeat interval, which is recommended to be 3-6 times.

S2: the concentrator analyzes and processes the registration request submitted by the G3-PLC electric meter and determines whether to push the registration request to a master station for processing according to the white list condition of the sub-modules; the concrete expression is as follows:

the concentrator is composed of a host and a main module, wherein the main module integrally works according to the following process specifications:

1. as a G3-PLC main node, the device is an independent component;

2. providing a host management interface to configure working parameters and data such as a sub-module white list, a registration mode, a routing table and the like;

3. after the power is on, acquiring a white list of the sub-modules from the host, and always working based on the white list;

4. if the G3-PLC electric meter applying for network access is not in the sub-module white list, refusing network access and pushing the registration application to the host;

5. and if the host computer allows the G3-PLC electric meter to be accessed to the network, updating the meter file to the host computer, synchronously updating the sub-module white list, and waiting for the next network access application of the G3-PLC electric meter.

After the concentrator host receives the registration request submitted by the G3-PLC electric meter, the concentrator host pushes a new meter registration application to notify the master station system.

S3: the master station analyzes and processes the received registration request, which is specifically represented as:

as shown in fig. 5, the primary station analyzes and processes the received registration request, and performs processing according to different situations:

if the G3-PLC electric meter is not registered in any concentrator, allowing the G3-PLC electric meter to be registered in the concentrator, and updating the sub-module white list of the concentrator and configuring parameters; and the master station refreshes the memory and the file of the master station electric meter, writes the registration success record into the database.

And if the G3-PLC electric meter has registered other concentrators and the interval between the last registration time and the new application time is less than a third preset time, refusing to register.

If the G3-PLC electric meter has registered other concentrators and the interval between the last registration time and the new application time is greater than the third preset time length, deleting the electric meter file record in the submodule white list of the concentrator which has been registered, and then adding the electric meter file record to the submodule white list of the concentrator which newly applies.

In one particular embodiment:

1. if the electric meter is not registered in any concentrator, the electric meter is allowed to be registered in the concentrator, the white list of the concentrator is updated, and parameters such as keys are configured (the white list is supplemented in a 'new adding' mode, and the main module is not reset). Then the main station refreshes the memory and the file of the main station electric meter, and writes the registration success record into the database.

2. If the meter registers other concentrators once and the interval between the last registration time and the new application time is less than 1 day (recommended range: 1-3 days), the registration is refused to prevent frequent switching among the concentrators.

3. If the meter has registered other concentrators once, but the time interval between two registrations is more than 1 day, the meter file record in the white list of the old concentrator is deleted, and then the meter file record is added to the white list of the new concentrator. Preferably, it should be noted that in some laboratory environments or in some older areas, the master station system deletes the electric meter file records in the white list of the old concentrator, which cannot be successfully deleted due to the special factors such as unstable network communication or down time of the concentrator, for this case, the master station system writes a deletion failure record into the database, and then, each time the master station detects that the concentrator is on line or resumes heartbeat, the master station queries whether there is a deletion failure record of the concentrator in the database, and if so, tries to continue deleting until the deletion is finally successful and deletes the failure record in the database according to the rule.

As shown in fig. 6, the master station system processes the whole time sequence of meter registration, so that the whole system fundamentally ensures that under various abnormal conditions, meter files can still be ensured to be synchronous and consistent in the new concentrator and the old concentrator, and the condition that one meter is simultaneously registered in two concentrators and works normally can not occur.

Compared with the prior art, the device can also automatically solve the abnormal situation of flow execution failure in each stage of PLC electric meter registration, and ensure the consistency of data of the master station, the concentrator and the electric meter. For example: under the condition that the concentrator is powered off or network communication is unstable, the master station can solve the problem of failed addition and deletion of a white list of the new concentrator and the old concentrator through various online retry strategies, so that the whole data synchronization is ensured, and the dynamic and flexible network data synchronization system is dynamic, stable and safe.

An embodiment of the present application further provides a control apparatus, including a processor and a storage medium for storing a computer program; wherein a processor is adapted to perform at least the method as described above when executing the computer program.

Embodiments of the present application also provide a storage medium for storing a computer program, which when executed performs at least the method described above.

Embodiments of the present application further provide a processor, where the processor executes a computer program to perform at least the method described above.

The storage medium may be implemented by any type of volatile or non-volatile storage device, or combination thereof. The nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic Random Access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAMEN), Synchronous linked Dynamic Random Access Memory (DRAM), and Direct Random Access Memory (DRMBER). The storage media described in connection with the embodiments of the invention are intended to comprise, without being limited to, these and any other suitable types of memory.

In the several embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.

The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to obtain new method embodiments.

Features disclosed in several of the product embodiments provided in the present application may be combined in any combination to yield new product embodiments without conflict.

The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the spirit of the invention, and all the properties or uses are considered to be within the scope of the invention.

Claims

1. A method for automatically registering a G3-PLC electric meter to a master station is characterized by comprising the following steps:

2. The method of automatically registering a G3-PLC electric meter with a master station of claim 1, wherein the G3-PLC electric meter includes a meter and an electric meter slave module; the concentrator comprises a host and a main module; the G3-PLC meter submitting the registration request to the concentrator includes:

s11: G3-PLC standard has three working frequency bands of CenA/FCC/FCCH, before initiating MAC/PHY layer communication, frequency band parameters are configured and initialized according to prefabricated parameters;

s12: in the G3-PLC network networking routing process, the electric meter slave module of the G3-PLC electric meter preferentially searches for a master node with the optimal signal according to a preset frequency band, and if network access fails in the searching process, the master node is sequentially switched to other frequency bands to try.

3. The method of claim 2, wherein the frequency band parameter is FCC.

4. The method of claim 3, wherein the frequency band parameter is modified and stored in an external flash memory card before factory shipment or in the field.

5. The method for automatic registration of G3-PLC electric meters to a master station according to claim 4, wherein the G3-PLC electric meters and the concentrator during network operation the G3-PLC network adopts the following maintenance mechanism:

6. The G3-PLC meter auto-registration method of claim 5, wherein the master module of the concentrator is configured to:

providing a host management interface to configure operating parameters and data including the sub-module whitelist, registration mode, routing table

After the power is on, the sub-module white list is obtained from the host and works based on the sub-module white list;

if the G3-PLC electric meter applying for network access is not in the sub-module white list, refusing network access and pushing the registration application to the host;

and if the host computer allows the G3-PLC electric meter to be accessed to the network, updating the meter file to the host computer, synchronously updating the sub-module white list, and waiting for the next network access application of the G3-PLC electric meter.

7. The method of claim 6, wherein the master station analyzing the received registration request for processing comprises:

8. The method of claim 6, wherein the master station analyzing the received registration request for processing comprises:

9. The method of claim 6, wherein the master station analyzing the received registration request for processing comprises:

10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 9.