CN115174664A - Registration method of ammeter - Google Patents
Registration method of ammeter Download PDFInfo
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- CN115174664A CN115174664A CN202210614006.2A CN202210614006A CN115174664A CN 115174664 A CN115174664 A CN 115174664A CN 202210614006 A CN202210614006 A CN 202210614006A CN 115174664 A CN115174664 A CN 115174664A
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- ammeter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/143—Termination or inactivation of sessions, e.g. event-controlled end of session
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Selective Calling Equipment (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a registration method of an ammeter, which comprises the following steps: the electric meter is used as a server side, the main station is used as a client side, and a communication network environment is established between the electric meter and the main station; when the ammeter is installed and used for the first time, the ammeter generates a registration message and pushes the generated registration message to a main station; when the master station receives a registration message of the ammeter within a set time, sending confirmation information to the ammeter to inform the ammeter of successful registration; the ammeter stops registering after receiving the registration confirmation information, namely the ammeter is successfully registered; and then the master station establishes a temporary session with the electric meter according to the formulated collection task, reads the electric meter data after the temporary session is established, and finishes the session and disconnects the connection after the electric meter data is read. The method has the advantages that: the access to the electricity meter data is controlled by the master station, and the pressure of the server is reduced; only one fixed IP address is needed by the master station, and the IP addresses are dynamically produced by the meter, so that the IP resources are saved.
Description
Technical Field
The invention relates to the field of electric meters, in particular to an electric meter registration method.
Background
The intelligent power grid realizes remote information acquisition through an IP network, and the electric meter is used as terminal equipment for acquiring remote electric quantity information and is distributed in vast cities, rural areas and industrial occasions, so that the use environment is complex. Because the number of the electric meter terminals is large, the distribution is wide, and the installation time is different, how to realize the timely and reliable network connection establishment between each electric meter and the electricity selling management system database and the timely data reporting become a key link for the information acquisition of the intelligent power grid.
In order to solve the above problems, a server/client model is generally adopted in the prior art to implement data interaction between the electricity meter and the electricity selling management system. The electricity selling management system (hereinafter, referred to as a master station) serves as a server and has a fixed IP address, the electricity meter serves as a client, and after the electricity meter is installed, the electricity meter actively logs in the IP of the master station to establish connection. The master station can acquire the information of the electric meter after receiving the login information, and the master station and the electric meter are kept connected through heartbeat; however, since the electric meter is used as a client, the electric meter does not have a fixed IP address, and data can be read only under the condition that the electric meter keeps connected. Once a heartbeat is lost, the master station cannot access the meter information. Further improvements are needed for this purpose.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for registering an electric meter, which enables a master station to access the electric meter at any time and only needs one fixed IP address of the master station, in view of the above prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for registering an electricity meter, comprising: the method comprises the following steps:
step 1, an electric meter is used as a server side, a master station is used as a client side, and a communication network environment is established between the electric meter and the master station;
step 2, when the electric meter is installed and used for the first time, the electric meter generates a registration message after acquiring the dynamic IP address allocated by the system, and pushes the generated registration message to the IP address of the master station and the corresponding port;
step 3, judging whether the master station receives a registration message of the ammeter within the set time, if so, sending confirmation information to the ammeter to inform the success of ammeter registration, and turning to step 4; if not, the ammeter retransmits the registration message to the master station according to a preset time interval, and the step 3 is continued;
step 4, the ammeter stops registering after receiving the registration confirmation information, and the step 5 is carried out, until the IP address of the ammeter or the monitoring port information is detected to be changed next time, the ammeter is divided into registration messages again according to the steps, and the generated registration messages are sent to the master station again to initiate the registration messages;
and 5, after the ammeter is successfully registered, the master station establishes a temporary session with the ammeter according to the formulated collection task, reads ammeter data after the temporary session is established, and finishes the session and disconnects the ammeter data after the ammeter data is read.
The registration message is generated according to one or more of the logical device name, the electric meter number ID, the electric meter IP address, the monitoring port and the MAC address information.
In order to avoid network channel blockage, preferably, in step 2, when it is detected that the electric meter needs to be registered, the electric meter waits for the first time T2, and after the first time T2, the electric meter initiates a registration message to the master station.
Further, the condition that the electric meter needs to be registered is electric meter reset or IP information change.
In order to further reduce the network congestion probability and improve the data communication acquisition rate, the method for retransmitting the registration message by each electric meter in the step 3 includes the following steps:
step 3-1, initializing retransmission times when the master station does not receive the registration message sent by the ammeter for the first time; wherein the initial value of the number of retransmissions is 0;
step 3-2, judging whether the retransmission times reach the upper limit value CNT, if so, waiting for a third time T3, ending after the third time T3, and waiting for the electric meter to be registered again; if not, the ammeter retransmits the registration message after waiting for a second time T1, updates the current retransmission times after adding 1 to the current retransmission times, and then shifts to the step 3-3;
3-3, judging whether the master station receives a registration message of the ammeter within the set time, if so, stopping registration; if not, go to step 3-2.
In order to solve the problem that the registration is influenced by the network congestion to the maximum extent, the second time T1 is configured according to the installation capacity of the transformer area and the network condition.
Further, the third time T3 is configured according to the installation number of the district electric meters and the network condition.
In order to save communication flow, preferably, the communication between the electric meter and the main station is kept connected for a short time, and the connection is automatically disconnected after each communication is completed for T minutes. Therefore, the connection is automatically disconnected after each communication is finished for T minutes, so that the communication connection between the electric meter and the main station is not required to be maintained for a long time, and the communication flow is saved.
The electric meter and the master station can communicate with each other in various ways, wherein a first way is preferably that the electric meter and the master station are in communication connection through a communication module.
The second mode of communication between the electric meter and the main station is that a wireless module is arranged in the electric meter and is in communication connection with the main station through a collector.
Compared with the prior art, the invention has the advantages that: the electricity meter is used as a server, the master station is used as a client, the access to the electricity meter data is controlled by the master station, and the pressure of the server is reduced; the master station as a client side has a fixed IP address for monitoring and reporting, and the master station is informed of information in a registration mode when the electric meter logs in or the dynamic IP changes every time. By the method, the master station can know the real-time IP information of each electric meter, so that only one fixed IP address is needed by the master station, the meter IP addresses are dynamically produced, and IP resources are saved.
Drawings
FIG. 1 is a schematic diagram of communication between an electricity meter and a master station according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for registering an electricity meter according to an embodiment of the present invention;
fig. 3 is a control flow diagram of retransmission of registration packets according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, in the present embodiment, the electric meter and the master station are in communication connection, where the communication connection is preferably two ways as shown in fig. 1, and the first way is: the ammeter is in communication connection with the master station through a communication module; the communication module can be a GPRS (general packet radio service), a 3G (third generation telecommunication) or a 4G (fourth generation telecommunication) module, namely n electric meters in the same distribution area can communicate with the main station through the communication module by adopting a TCP/UDP (transmission control protocol/user datagram protocol) protocol; the second mode is as follows: the wireless module is arranged in the electric meter and is in communication connection with the master station through a collector, the wireless module is in communication connection with the collector through a Wi-SUM (namely an intelligent wireless network), the collector is usually a concentrator, and the collector and the master station are in communication through a TCP/UDP protocol.
As shown in fig. 2, the method for registering an electricity meter includes the following steps:
step 1, an electric meter is used as a server side, a main station is used as a client side, and a communication network environment is established between the electric meter and the main station;
step 2, when the electric meter is installed and used for the first time, the electric meter generates a registration message after acquiring the dynamic IP address allocated by the system, and pushes the generated registration message to the IP address of the master station and the corresponding port;
the registration message is generated according to one or more of the logical equipment name, the ammeter number ID, the ammeter IP address, the monitoring port and the MAC address information; in this embodiment, the registration message is generated from all the above information;
step 3, judging whether the master station receives a registration message of the ammeter within the set time, if so, sending confirmation information to the ammeter to inform the success of ammeter registration, and turning to step 4; if not, the electric meter retransmits the registration message to the main station according to a preset time interval, and the step 3 is continued;
step 4, the ammeter stops registering after receiving the registration confirmation information, and the step 5 is shifted to, until the IP address of the ammeter or the monitoring port information is detected to be changed next time, the ammeter is divided into registration messages again according to the steps, and the generated registration messages are sent to the master station again to initiate the registration messages;
and 5, after the electric meter registration is successful, the master station establishes a temporary session with the electric meter according to the formulated collection task, reads the electric meter data after the temporary session is established, and finishes the session and disconnects the electric meter after the electric meter data is read.
In order to avoid the problems of network channel blockage and network storm, the registration of each electric meter is controlled, as shown in fig. 3, specifically: when the ammeter is detected to be required to be registered in the step 2, the ammeter is reset or the IP information is changed under the condition that the ammeter is required to be registered; waiting for the first time T2, and after the first time T2 is up, the ammeter initiates a registration message to the master station; in addition, the method for retransmitting the registration message by each ammeter comprises the following steps:
step 3-1, initializing retransmission times when the master station does not receive the registration message sent by the ammeter for the first time; wherein the initial value of the number of retransmissions is 0;
step 3-2, judging whether the retransmission times reach the upper limit value CNT, if so, waiting for a third time T3, ending after the third time T3, and waiting for the electric meter to be registered again; if not, the ammeter retransmits the registration message after waiting for the second time T1, updates the current retransmission times after adding 1 to the current retransmission times, and then shifts to the step 3-3; the upper limit value CNT is a preset value;
3-3, judging whether the master station receives a registration message of the ammeter within the set time, if so, stopping registration; if not, go to step 3-2.
The first time T2 is configured according to the capacity of the installation network, starts registration waiting time and is generated by a random number function; the second time T1 is configured according to the installation capacity of the transformer area and the network condition; and the third time T3 is configured according to the installation quantity of the district electric meters and the network condition. Therefore, the above-mentioned electric meter registration process is controlled by the registration waiting time (i.e. the above-mentioned first time T2), the retransmission time (i.e. the above-mentioned second time T1), the retransmission times and the retransmission interval time (i.e. the above-mentioned second time T1), and the problem of network congestion registration timeliness can be solved to the maximum extent according to the field network environment configuration.
The communication between the electric meter and the main station is kept in short-time connection, and the connection is automatically disconnected after the communication is completed for T minutes each time, wherein T is preset time; the session can be ended after the single session is completed, and long-term connection and heartbeat are not required to be kept; and when no session exists for a long time, the registration information is pushed to the master station again.
In the embodiment, the electric meter is used as a server, the main station is used as a client, the access to the electric meter data is controlled by the main station, and the pressure of the server is reduced; in addition, the master station is provided with a fixed IP address for monitoring reported data and the IP address of the port ammeter side is a dynamic address, when the ammeter is installed for the first time, the ammeter actively initiates registration information to the master station after acquiring the dynamic IP address, the registration content carries the IP address and the identity information of the ammeter, and the master station can access the corresponding ammeter at any time through the registration information after acquiring the registration information; in the subsequent maintenance process, if the dynamic IP of the electric meter end changes, the electric meter end immediately registers to the master station again, the archive information of the master station is updated, and the master station can know the real-time IP information of each electric meter in the mode; therefore, only one fixed IP address is needed by the master station in the embodiment, and the IP addresses are counted by the meter and are dynamically produced, so that IP resources are saved; meanwhile, the master station and the electric meter do not need to maintain communication connection for a long time, so that communication flow is saved; the UDP protocol without connection is supported, and the communication efficiency is high; the heartbeat frame is not needed, the network congestion probability is reduced, and the communication data acquisition rate is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. A registration method of an electric meter is characterized in that: the method comprises the following steps:
step 1, an electric meter is used as a server side, a master station is used as a client side, and a communication network environment is established between the electric meter and the master station;
step 2, when the electric meter is installed and used for the first time, the electric meter generates a registration message after acquiring the dynamic IP address allocated by the system, and pushes the generated registration message to the IP address of the master station and the corresponding port;
step 3, judging whether the master station receives a registration message of the ammeter within the set time, if so, sending confirmation information to the ammeter to inform the success of ammeter registration, and turning to step 4; if not, the electric meter retransmits the registration message to the main station according to a preset time interval, and the step 3 is continued;
step 4, the ammeter stops registering after receiving the registration confirmation information, and the step 5 is shifted to, until the IP address of the ammeter or the monitoring port information is detected to be changed next time, the ammeter is divided into registration messages again according to the steps, and the generated registration messages are sent to the master station again to initiate the registration messages;
and 5, after the electric meter registration is successful, the master station establishes a temporary session with the electric meter according to the formulated collection task, reads the electric meter data after the temporary session is established, and finishes the session and disconnects the electric meter after the electric meter data is read.
2. Method for registering an electricity meter according to claim 1, characterized in that: the registration message is generated according to one or more of the logical device name, the ammeter number ID, the ammeter IP address, the monitoring port and the MAC address information.
3. Method for registering an electricity meter according to claim 1, characterized in that: and 2, when the electric meter is detected to be required to be registered in the step 2, waiting for the first time T2, and after the first time T2 is up, the electric meter initiates a registration message to the master station.
4. Method for registering an electricity meter according to claim 3, characterized in that: and the condition that the ammeter needs to be registered is ammeter reset or IP information change.
5. The registration method for electricity meters according to claim 3, wherein: the method for retransmitting the registration message in each ammeter in the step 3 comprises the following steps:
step 3-1, initializing retransmission times when the master station does not receive the registration message sent by the ammeter for the first time; wherein the initial value of the number of retransmissions is 0;
step 3-2, judging whether the retransmission times reach the upper limit value CNT, if so, waiting for a third time T3, ending after the third time T3, and waiting for the electric meter to be registered again; if not, the ammeter retransmits the registration message after waiting for the second time T1, updates the current retransmission times after adding 1 to the current retransmission times, and then shifts to the step 3-3;
3-3, judging whether the master station receives a registration message of the ammeter within set time, if so, stopping registration; if not, go to step 3-2.
6. The registration method for electricity meters according to claim 5, wherein: the second time T1 is configured according to the installation capacity of the transformer area and the network condition.
7. Method for registering an electricity meter according to claim 6, characterized in that: and the third time T3 is configured according to the installation quantity of the district electric meters and the network condition.
8. Method for registering an electricity meter according to any of the claims 1-7, characterized in that: the communication between the ammeter and the main station is kept in short-time connection, the connection is automatically disconnected after the communication is completed for T minutes each time, and T is preset time.
9. The registration method for electricity meters according to claim 8, wherein: the electric meter is in communication connection with the main station through a communication module.
10. The registration method for electricity meters according to claim 8, wherein: the wireless module is arranged in the ammeter and is in communication connection with the main station through the collector.
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