阅读说明：本技术 智能电表与断路器自动连接方法及智能电表 (Intelligent electric meter and automatic connection method of circuit breaker and intelligent electric meter ) 是由 黄亮 吴有超 唐玉建 陈河 黄波 于 2020-06-29 设计创作，主要内容包括：本发明提供一种智能电表与断路器自动连接方法,属于通信技术领域。所述方法包括：断路器产生用于标识该断路器身份的第一配对特征码,采用无功电流方式和无线通信方式同时发送所述第一配对特征码,实现第一次配对匹配验证；在第一次配对匹配验证成功后,智能电表产生第二配对特征码,采用无线通信方式将第二配对特征码发送到断路器,通过断路器采用无功电流方式返回的第二配对特征码实现第二次配对匹配验证；在第二次配对匹配验证成功后,确定断路器为智能电表的外置断路器,智能电表与断路器配对连接。本发明结合无功电流和无线通信两种方式,通过两次配对匹配验证实现断路器与无线智能电表的自动配对,大大提高配对效率和准确率。(The invention provides an automatic connection method of an intelligent electric meter and a circuit breaker, and belongs to the technical field of communication. The method comprises the following steps: the circuit breaker generates a first pairing feature code for identifying the identity of the circuit breaker, and the first pairing feature code is simultaneously sent in a reactive current mode and a wireless communication mode to realize first pairing matching verification; after the first pairing matching verification is successful, the intelligent electric meter generates a second pairing feature code, the second pairing feature code is sent to the circuit breaker in a wireless communication mode, and the second pairing matching verification is achieved through the second pairing feature code returned by the circuit breaker in a reactive current mode; and after the second pairing, matching and verification are successful, determining that the circuit breaker is an external circuit breaker of the intelligent electric meter, and pairing and connecting the intelligent electric meter and the circuit breaker. According to the invention, two modes of reactive current and wireless communication are combined, automatic pairing of the circuit breaker and the wireless intelligent electric meter is realized through twice pairing matching verification, and the pairing efficiency and accuracy are greatly improved.)

1. A method for automatically connecting a smart meter with a circuit breaker is characterized by comprising the following steps:

s1) the circuit breaker generates a first pairing feature code for identifying the identity of the circuit breaker, the first pairing feature code is sent in a reactive current mode and a wireless communication mode simultaneously, and first pairing matching verification of the circuit breaker and the intelligent electric meter is achieved through the first pairing feature code;

s2) after the first matching verification is successful, the intelligent electric meter generates a second matching feature code, the second matching feature code is sent to the circuit breaker in a wireless communication mode, and the second matching verification of the intelligent electric meter and the circuit breaker is achieved through the second matching feature code returned by the circuit breaker in a reactive current mode;

s3) after the second pairing matching verification is successful, determining that the circuit breaker is the external circuit breaker of the intelligent electric meter, and connecting the intelligent electric meter with the circuit breaker in a pairing mode.

2. The method according to claim 1, wherein the step of simultaneously sending the first pairing signature in the reactive current mode and the wireless communication mode in step S1) includes:

and modulating and sending the first pairing feature code to a cable line by adopting a reactive current mode, and sending the first pairing feature code by adopting a Bluetooth broadcasting mode.

3. The method according to claim 2, wherein the step S1) of implementing the first pairing matching verification of the circuit breaker and the smart meter through the first pairing feature code includes:

the smart electric meter samples the current data on the cable conductor, demodulates out first pairing feature code according to the current data of sampling, scans the bluetooth broadcast simultaneously and selects first pairing feature code, judges whether the first pairing feature code that demodulates out is unanimous with the first pairing feature code of selecting, if unanimous, then pairs for the first time and matches the verification success, records first pairing feature code.

4. The method according to claim 3, wherein in step S2), after the first pairing matching verification is successful, the smart meter generates a second pairing feature code, the second pairing feature code is sent to the circuit breaker in a wireless communication manner, and the second pairing matching verification between the smart meter and the circuit breaker is realized through the second pairing feature code returned by the circuit breaker in a reactive current manner, including:

s21) after the first pairing matching verification is successful, the smart electric meter generates a second pairing feature code and generates a command for changing the pairing feature code, and the second pairing feature code and the command for changing the pairing feature code are sent to the circuit breaker in a Bluetooth communication mode;

s22) after the circuit breaker receives the second pairing feature code and the command for changing the pairing feature code, the circuit breaker modulates and sends the second pairing feature code to the cable line in a reactive current mode according to the command for changing the pairing feature code;

s23) the intelligent electric meter samples the current data on the cable again, demodulates a second pairing feature code according to the sampled current data, judges whether the demodulated second pairing feature code is consistent with a second pairing feature code generated by the intelligent electric meter, and if so, successfully verifies the second pairing matching.

5. The method according to claim 3, wherein the step S1) further comprises:

determining whether a breaker address is set in a slave list of the intelligent electric meter, and performing an operation of sampling current data on the cable line when the fact that the breaker address is not set in the slave list is determined.

6. The method according to claim 5, wherein the step S1) further comprises:

attempting to connect the breaker address upon determining that the slave list has set the breaker address, performing an operation of sampling current data on the cable line upon failure to connect the breaker address.

7. The method according to claim 4, wherein the first pairing feature code comprises a MAC address of the circuit breaker and a Bluetooth connection identification code of the circuit breaker.

8. The method according to claim 7, wherein the step S21) of sending the second pairing feature code and the command for changing the pairing feature code to the circuit breaker by using bluetooth communication includes:

and obtaining a Bluetooth connection identification code of the circuit breaker according to the first pairing feature code, establishing Bluetooth communication connection with the circuit breaker through the Bluetooth connection identification code, and sending the second pairing feature code and a command for changing the pairing feature code to the circuit breaker by adopting the Bluetooth communication connection.

9. The method according to claim 8, wherein the step S23) further comprises:

if the second pairing feature code demodulated by the smart meter is inconsistent with the second pairing feature code generated by the smart meter, disconnecting the Bluetooth communication connection with the circuit breaker, rescanning the Bluetooth broadcast to screen out the first pairing feature code, and turning to the step S21).

10. An intelligent electric meter, characterized in that pairing with a circuit breaker is realized by adopting the automatic connection method of the intelligent electric meter and the circuit breaker as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of communication, in particular to an automatic connection method of an intelligent electric meter and a circuit breaker and the intelligent electric meter.

Background

The external miniature circuit breaker of ammeter is the key equipment that cooperates smart electric meter to realize intelligent expense accuse function, and the smart electric meter that rated current is great relatively generally adopts miniature circuit breaker's mode to realize various expense accuse functions. The connection between the intelligent electric meter and the circuit breaker can be established through Bluetooth communication, automatic pairing is the basis for establishing the connection between the circuit breaker and the intelligent electric meter, and any unpaired device (or once paired device but one party deletes the pairing relationship) cannot be connected. Usually, the ammeter and the circuit breaker need to be scanned the sign indicating number respectively through the palm on the ammeter installation scene and pair, have the palm not enough, the scanning pair the time long, manual operation easily makes mistakes scheduling problem, hardly guarantee circuit breaker and ammeter one-to-one.

At present, when the circuit breaker outside the meter and the intelligent electric meter based on the Bluetooth technology are installed, because the installation site can not be electrified, the intelligent electric meter and the circuit breaker can not perform Bluetooth communication to realize pairing, therefore, a palm machine is needed to be used for scanning codes of each circuit breaker and each electric meter respectively for pairing, configuration errors can easily occur under the condition that a plurality of electric meters and circuit breakers exist in a multi-meter-position electric energy meter box, the whole pairing process can be completed only after long time consumption, and the asset management of the circuit breaker in the later period is very troublesome.

Disclosure of Invention

The invention aims to provide an automatic connection method of an intelligent electric meter and a circuit breaker, and aims to solve the problems of low matching efficiency and low accuracy of the intelligent electric meter and the circuit breaker in an installation site which cannot be electrified.

In order to achieve the above object, the present invention provides an automatic connection method for a smart meter and a circuit breaker, wherein the method comprises:

s1) the circuit breaker generates a first pairing feature code for identifying the identity of the circuit breaker, the first pairing feature code is sent in a reactive current mode and a wireless communication mode simultaneously, and first pairing matching verification of the circuit breaker and the intelligent electric meter is achieved through the first pairing feature code;

s2) after the first matching verification is successful, the intelligent electric meter generates a second matching feature code, the second matching feature code is sent to the circuit breaker in a wireless communication mode, and the second matching verification of the intelligent electric meter and the circuit breaker is achieved through the second matching feature code returned by the circuit breaker in a reactive current mode;

s3) after the second pairing matching verification is successful, determining that the circuit breaker is the external circuit breaker of the intelligent electric meter, and connecting the intelligent electric meter with the circuit breaker in a pairing mode.

Further, the step S1) of simultaneously sending the first pairing feature code in the reactive current mode and the wireless communication mode includes:

and modulating and sending the first pairing feature code to a cable line by adopting a reactive current mode, and sending the first pairing feature code by adopting a Bluetooth broadcasting mode.

Further, the step S1) of implementing the first pairing matching verification of the circuit breaker and the smart meter through the first pairing feature code includes:

the smart electric meter samples the current data on the cable conductor, demodulates out first pairing feature code according to the current data of sampling, scans the bluetooth broadcast simultaneously and selects first pairing feature code, judges whether the first pairing feature code that demodulates out is unanimous with the first pairing feature code of selecting, if unanimous, then pairs for the first time and matches the verification success, records first pairing feature code.

Further, step S2), after the first pairing matching verification is successful, the smart meter generates a second pairing feature code, and sends the second pairing feature code to the circuit breaker in a wireless communication manner, and the second pairing matching verification between the smart meter and the circuit breaker is realized by the second pairing feature code returned by the circuit breaker in a reactive current manner, including:

s21) after the first pairing matching verification is successful, the smart electric meter generates a second pairing feature code and generates a command for changing the pairing feature code, and the second pairing feature code and the command for changing the pairing feature code are sent to the circuit breaker in a Bluetooth communication mode;

s22) after the circuit breaker receives the second pairing feature code and the command for changing the pairing feature code, the circuit breaker modulates and sends the second pairing feature code to the cable line in a reactive current mode according to the command for changing the pairing feature code;

s23) the intelligent electric meter samples the current data on the cable again, demodulates a second pairing feature code according to the sampled current data, judges whether the demodulated second pairing feature code is consistent with a second pairing feature code generated by the intelligent electric meter, and if so, successfully verifies the second pairing matching.

Further, step S1) further includes:

determining whether a breaker address is set in a slave list of the intelligent electric meter, and performing an operation of sampling current data on the cable line when the fact that the breaker address is not set in the slave list is determined.

Further, step S1) further includes:

attempting to connect the breaker address upon determining that the slave list has set the breaker address, performing an operation of sampling current data on the cable line upon failure to connect the breaker address.

Further, the first pairing feature code contains a MAC address of the circuit breaker and a bluetooth connection identification code of the circuit breaker.

Further, the sending the second pairing feature code and the command for changing the pairing feature code to the circuit breaker in step S21) by using a bluetooth communication manner includes:

and obtaining a Bluetooth connection identification code of the circuit breaker according to the first pairing feature code, establishing Bluetooth communication connection with the circuit breaker through the Bluetooth connection identification code, and sending the second pairing feature code and a command for changing the pairing feature code to the circuit breaker by adopting the Bluetooth communication connection.

Further, step S23) further includes:

if the second pairing feature code demodulated by the smart meter is inconsistent with the second pairing feature code generated by the smart meter, disconnecting the Bluetooth communication connection with the circuit breaker, rescanning the Bluetooth broadcast to screen out the first pairing feature code, and turning to the step S21).

The invention also provides an intelligent electric meter, and the intelligent electric meter and the circuit breaker are automatically connected to realize pairing with the circuit breaker.

In the invention, the circuit breaker and the intelligent electric meter are confirmed to be on the same line only under the condition that the pairing feature code sent by the circuit breaker through a main power line (cable line) is consistent with the pairing feature code received by the intelligent electric meter through Bluetooth, so that the matching relation between the circuit breaker and the intelligent electric meter is determined. The automatic connection method of the intelligent electric meter and the circuit breaker, provided by the invention, combines two modes of reactive current and wireless communication, realizes automatic pairing of the circuit breaker and the wireless intelligent electric meter through two-time pairing matching verification, greatly improves the pairing efficiency, improves the automatic pairing accuracy, and solves the problems of low pairing efficiency and low accuracy of the intelligent electric meter and the circuit breaker in the installation site which cannot be electrified in the prior art.

Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:

fig. 1 is a flowchart of an automatic connection method of a smart meter and a circuit breaker according to an embodiment of the present invention;

fig. 2 is a flowchart of second pairing matching verification of an automatic connection method of a smart meter and a circuit breaker according to an embodiment of the present invention;

fig. 3 is a flowchart (smart meter side) of an automatic connection method of a smart meter and a circuit breaker according to an alternative embodiment of the present invention;

fig. 4 is a flowchart (smart meter side) of an automatic connection method of a smart meter and a circuit breaker according to another alternative embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Fig. 1 is a flowchart of an automatic connection method between a smart meter and a circuit breaker according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides an automatic connection method for a smart meter and a circuit breaker, where the method includes:

s1) the circuit breaker generates a first matching feature code for identifying the identity of the circuit breaker, the first matching feature code is sent in a reactive current mode and a wireless communication mode simultaneously, and first matching verification of the circuit breaker and the intelligent electric meter is achieved through the first matching feature code.

Specifically, the circuit breaker generates a first matching feature code for identifying the identity of the circuit breaker, the first matching feature code is modulated and sent to a cable line in a reactive current mode, and meanwhile, the first matching feature code is sent in a Bluetooth broadcasting mode. In this embodiment, the first pairing feature code may include address information of a circuit breaker or information representing an address of the circuit breaker, for example, the first pairing feature code includes an MAC address of the circuit breaker and a bluetooth connection identification code of the circuit breaker.

The smart electric meter samples the current data on the cable conductor, demodulates out first pairing feature code according to the current data of sampling, scans the bluetooth broadcast simultaneously and selects first pairing feature code, judges whether the first pairing feature code that demodulates out is unanimous with the first pairing feature code of selecting, if unanimous, then pairs for the first time and matches the verification success, records first pairing feature code. As an optional embodiment, the smart meter checks its slave list after initialization, determines whether the slave list of the smart meter has set a breaker address, and performs an operation of sampling current data on the cable line when it is determined that the slave list has not set the breaker address; attempting to connect the breaker address upon determining that the slave list has set the breaker address, performing an operation of sampling current data on a cable line upon failure to connect the breaker address.

In this embodiment, the circuit breaker may include a reactive power generating module. The working principle of the reactive power generation module is that through structural current waveform coding, information transmission is carried out while power transmission is achieved, and the working principle can also be called as power coding. The embodiment of the invention adopts the reactive power generation module to arrange a set of coding circuit in the breaker body, and the coding circuit is controlled by a specific controller to realize the switching of reactive load so as to carry out power coding. When the circuit breaker and the smart meter are installed and then an electric test is carried out, namely when the circuit breaker is switched on and electrified, the circuit breaker is connected with the smart meter through a main power line, and the circuit breaker firstly sends a first pairing feature code (for example, a feature code representing an MAC address). At the moment, the intelligent electric meter initiates a real-time synchronous communication instruction through the meter end Bluetooth module, and synchronously starts to acquire power in real time. Because only the wireless circuit breaker is connected with the main power line of the wireless intelligent electric meter (the intelligent electric meter related to the invention belongs to the wireless intelligent electric meter, and the related circuit breaker belongs to the wireless circuit breaker), only the corresponding structure power waveform initiated by the circuit breaker on the power line can be received by the corresponding intelligent electric meter, namely, the data interaction in a reactive current mode can be carried out between the circuit breaker on the same power line and the intelligent electric meter. The modulation mode of the pairing feature code may adopt an OOK mode to modulate data (i.e., a switching mode), where a current is high to indicate data 0, and a current is not low to indicate data 1.

S2) after the first matching verification is successful, the intelligent electric meter generates a second matching feature code, the second matching feature code is sent to the circuit breaker in a wireless communication mode, and the second matching feature code returned by the circuit breaker in a reactive current mode is used for achieving the second matching verification of the intelligent electric meter and the circuit breaker.

Fig. 2 is a flowchart of second pairing matching verification of an automatic connection method of a smart meter and a circuit breaker according to an embodiment of the present invention. As shown in fig. 2, step S2) includes the following sub-steps:

s21) after the first pairing matching verification is successful, the smart electric meter generates a second pairing feature code and generates a command for changing the pairing feature code, and the second pairing feature code and the command for changing the pairing feature code are sent to the circuit breaker in a Bluetooth communication mode. Specifically, the smart meter obtains according to the first feature code of pairing the bluetooth connection identification code of circuit breaker, through bluetooth connection identification code with bluetooth communication connection is established to the circuit breaker, adopts bluetooth communication connection will the second pair the feature code and the order that the feature code was paired in the change is sent to the circuit breaker. The second pairing feature code may be an 8-bit or 16-bit random number generated by the smart meter.

S22), after the circuit breaker receives the second pairing feature code and the command for changing the pairing feature code, the circuit breaker modulates and sends the second pairing feature code to the cable line in a reactive current mode according to the command for changing the pairing feature code.

S23) the intelligent ammeter samples the current data on the cable again, demodulates a second pairing feature code according to the sampled current data, and judges whether the demodulated second pairing feature code is consistent with a second pairing feature code generated by the intelligent ammeter; and if the second pairing feature code demodulated by the intelligent ammeter is consistent with the second pairing feature code generated by the intelligent ammeter, the second pairing matching verification is successful. If the second pairing feature code demodulated by the smart meter is inconsistent with the second pairing feature code generated by the smart meter, disconnecting the Bluetooth communication connection with the circuit breaker, rescanning the Bluetooth broadcast to screen out the first pairing feature code, and turning to the step S21).

S3) after the second pairing matching verification is successful, determining that the circuit breaker is the external circuit breaker of the intelligent electric meter, and connecting the intelligent electric meter with the circuit breaker in a pairing mode.

After the automatic pairing process of the circuit breaker and the intelligent electric meter is completed through the steps, the circuit breaker uploads the asset number of the circuit breaker to the intelligent electric meter through the Bluetooth, the automatic input and the relation correspondence of asset management are achieved, the pairing connection and the automatic asset reporting of the circuit breaker and the intelligent electric meter under the unattended condition are achieved, and therefore the field maintenance cost and the installation error are greatly reduced.

In the embodiment of the invention, the circuit breaker and the intelligent electric meter are confirmed to be on the same line only under the condition that the pairing feature code sent by the circuit breaker through a main power line (cable) is consistent with the pairing feature code received by the intelligent electric meter through Bluetooth, so that the matching relationship between the circuit breaker and the intelligent electric meter is determined. According to the automatic connection method of the intelligent electric meter and the circuit breaker, provided by the embodiment of the invention, two modes of reactive current and wireless communication are combined, automatic pairing of the circuit breaker and the wireless intelligent electric meter is realized through two-time pairing matching verification, the pairing efficiency is greatly improved, the automatic pairing accuracy is improved, and the problems of low pairing efficiency and low accuracy of the intelligent electric meter and the circuit breaker in the installation site which cannot be electrified in the prior art are solved.

Aiming at different application scenes, the automatic pairing of the intelligent electric meter and the circuit breaker is divided into three conditions:

the method comprises the following steps that firstly, automatic pairing is conducted on a new intelligent electric meter and a new circuit breaker, namely the intelligent electric meter and the circuit breaker have no history matching records, and the method is suitable for a scene of newly installing the intelligent electric meter and the circuit breaker;

the new intelligent electric meter is automatically paired with the old circuit breaker, namely the intelligent electric meter has no history matching record, and the circuit breaker has history matching record, so that the intelligent electric meter is suitable for the condition that the intelligent electric meter is damaged and needs to be replaced;

and thirdly, the old intelligent electric meter is automatically paired with the new circuit breaker, namely the intelligent electric meter has a history matching record, and the circuit breaker has no history matching record, so that the circuit breaker is suitable for the condition that the damage of a circuit breaker needs to be replaced.

Fig. 3 is a flowchart (smart meter side) of an automatic connection method of a smart meter and a circuit breaker according to an alternative embodiment of the present invention. The present embodiment is directed to the automatic pairing of the new smart meter and the new circuit breaker in case one described above. As shown in fig. 3, after the power-on initialization of the smart meter, it is checked whether the post-table breaker is set in the slave list, that is, it is determined whether the slave list of the smart meter has set an address (e.g., a MAC address) of the breaker. If the slave list is not provided with the breaker address, current data on the cable line are sampled; if the slave list has set the breaker address, the connection of the breaker address is tried, and if the connection is overtime (the connection of the breaker fails), the current data on the cable line is sampled. After sampling is finished (enough current data are sampled), analyzing the current data, demodulating a first feature code (namely a first pairing feature code) through an algorithm, obtaining an MAC address list of the Bluetooth of the circuit breaker according to the first feature code, sequentially decrypting PIN codes in Bluetooth broadcast packets corresponding to the MAC, and finishing first pairing matching verification. And connecting the Bluetooth MAC address and the PIN code to a corresponding circuit breaker, generating and sending a feature code II (namely a second pairing feature code) to the circuit breaker, and sending a command for changing the pairing feature code to the circuit breaker. The circuit breaker adopts the reactive current mode to send the second modulation of the feature code to the cable wire and replies that the change of the feature code of the intelligent electric meter is completed. At the moment, the intelligent ammeter samples current data on the cable again, after sampling is finished, the current data is analyzed, a second feature code is demodulated through an algorithm, whether the demodulated second feature code is consistent with a second feature code generated by the intelligent ammeter is judged, if yes, second pairing matching verification is successful, the MAC address and PIN code of the circuit breaker are set to a slave list, the circuit breaker is determined to be an external circuit breaker of the intelligent ammeter, and pairing connection between the intelligent ammeter and the circuit breaker is achieved; if not, the Bluetooth connection with the breaker is disconnected, and the current data on the cable line is re-sampled.

The difference between the automatic pairing process of the new smart meter and the old circuit breaker in the second case and the automatic pairing process of the new smart meter and the new circuit breaker in the first case is that after the configured circuit breaker (namely, the old circuit breaker) is powered on again, the first feature code is automatically sent on the cable line under the condition that the bluetooth of the circuit breaker is not correctly connected, and after the circuit breaker is correctly connected by the host (namely, the smart meter), the first feature code is stopped being sent, if the circuit breaker is not correctly connected, the circuit breaker stops sending the first feature code after the first feature code is continuously sent for 120 minutes.

Fig. 4 is a flowchart (smart meter side) of an automatic connection method of a smart meter and a circuit breaker according to another alternative embodiment of the present invention. The present embodiment is directed to the automatic pairing of the old smart meter and the new circuit breaker in case three above. As shown in fig. 4, after the old smart meter is powered on again, it is checked whether the post-meter circuit breaker (i.e., the external circuit breaker) has been set in the slave list. If a breaker address (MAC address) is set in a slave list of the old smart meter, attempting to connect the MAC address set in the slave list (namely, connecting the breaker), wherein because the breaker has been replaced, a connection overtime situation occurs at the time (for example, if the connection is attempted for 300 seconds, the connection is not successful, the connection overtime situation is indicated, namely, the connection is failed), and starting to sample current data on a cable line; and if the slave list of the old intelligent electric meter is not provided with the breaker address, starting to sample the current data on the cable line. And next, judging whether sampling is finished (whether enough current data are sampled), if the sampling is finished, analyzing the current data, demodulating a first feature code (namely a first pairing feature code) through an algorithm, obtaining an MAC address list of the Bluetooth of the circuit breaker according to the first feature code, sequentially decrypting PIN codes in Bluetooth broadcast packets corresponding to the MAC, and finishing first pairing matching verification. Then, connecting to a corresponding breaker through a Bluetooth MAC address and a PIN code, and if the connection is overtime, re-sampling current data on the cable; if the connection is successful, a second signature (i.e., a second pairing signature) is generated and sent to the circuit breaker, along with a command to change the pairing signature to the circuit breaker. The circuit breaker adopts the reactive current mode to send the second modulation of the feature code to the cable wire and replies that the change of the feature code of the intelligent electric meter is completed. The intelligent electric meter samples current data on the cable line again after receiving the reply of the breaker, whether sampling is completed or not is judged (whether enough current data are sampled or not), if the sampling is completed, the current data are analyzed, a second feature code is demodulated through an algorithm, whether the demodulated second feature code is consistent with a second feature code generated by the intelligent electric meter is judged, if the two feature codes are consistent, second pairing matching verification is successful, the MAC address and the PIN code of the breaker are set to a slave list (namely the breaker is determined to be an external breaker of the intelligent electric meter), and pairing connection of the intelligent electric meter and the breaker is completed.

The embodiment of the invention also provides the intelligent electric meter, and the pairing with the circuit breaker is realized by adopting the automatic connection method of the intelligent electric meter and the circuit breaker.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.