阅读说明：本技术 基于hplc的台区电能表瞬时模拟量同步采集方法 (HPLC-based synchronous acquisition method for instantaneous analog quantity of district electric energy meter ) 是由 刘丽娜 李锐超 屈鸣 申杰 程志炯 王韬 周一飞 李林欢 王伟 于 2021-08-06 设计创作，主要内容包括：本发明公开了基于HPLC的台区电能表瞬时模拟量同步采集方法,该方法包括：步骤1：集中器通过发送启动广播命令,下发瞬时冻结任务至CCO模块；所述启动广播命令中承载瞬时冻结配置报文；步骤2：CCO模块根据收到的启动广播命令,通过扩展的载波通信协议,发送宽带载波广播校时扩展报文,完成向HPLC网络中的台区STA节点广播转发集中器下发的瞬时冻结命令；步骤3：STA节点根据收到的瞬时冻结命令,按照执行时间执行数据冻结,得到瞬时冻结数据并对其缓存；步骤4：集中器发送抄表报文从STA节点中抄读所述瞬时冻结数据,实现台区电能表瞬时模拟量同步采集。本发明能够达到台区内电表同步瞬时冻结。(The invention discloses a synchronous acquisition method of instantaneous analog quantity of a platform area electric energy meter based on HPLC, which comprises the following steps: step 1: the concentrator sends an instant freezing task to the CCO module by sending a broadcast starting command; the instant freezing configuration message is loaded in the starting broadcast command; step 2: the CCO module sends a broadband carrier broadcast timing extension message through an extended carrier communication protocol according to a received broadcast starting command, and finishes broadcasting an instantaneous freezing command issued by a forwarding concentrator to a station area STA node in the HPLC network; and step 3: the STA node performs data freezing according to the received instantaneous freezing command and the execution time to obtain instantaneous freezing data and caches the instantaneous freezing data; and 4, step 4: and the concentrator sends a meter reading message to read the instantaneous frozen data from the STA node, so that the synchronous acquisition of the instantaneous analog quantity of the electric energy meter in the transformer area is realized. The invention can achieve synchronous instantaneous freezing of the electric meters in the transformer area.)

1. The HPLC-based method for synchronously acquiring instantaneous analog quantity of the electric energy meter in the distribution room is characterized by comprising the following steps:

step 1: the concentrator sends an instant freezing task to the CCO module by sending a broadcast starting command; the instant freezing configuration message is loaded in the starting broadcast command;

step 2: the CCO module sends a broadband carrier broadcast timing extension message through an extended carrier communication protocol according to a received broadcast starting command, and finishes broadcasting an instantaneous freezing command issued by a forwarding concentrator to a station area STA node in the HPLC network;

and step 3: the STA node performs data freezing according to the received instantaneous freezing command and the execution time to obtain instantaneous freezing data and caches the instantaneous freezing data;

and 4, step 4: and the concentrator sends a meter reading message to read the instantaneous frozen data from the STA node, so that the synchronous acquisition of the instantaneous analog quantity of the electric energy meter in the transformer area is realized.

2. The HPLC-based synchronous acquisition method for instantaneous analog quantity of the station electric energy meter according to claim 1, wherein the start broadcast command in step 1 carries an instantaneous freeze configuration message, wherein the instantaneous freeze configuration message has configuration parameters including data items to be instantaneously frozen and instantaneous freeze time.

3. The HPLC-based synchronous acquisition method for the transient analog quantity of the station electric energy meter according to claim 2, wherein the format of the start broadcast command in step 1 comprises data content, data format and byte number, wherein the data content comprises control words, message length L and message content.

4. The HPLC-based synchronous acquisition method for the instantaneous analog quantity of the electric energy meter in the distribution room, according to claim 2, wherein the data content of the instantaneous freezing configuration message in step 1 comprises a deepening application ID, a direction bit, a message header length, a reservation, a freezing ID, a freezing data control word, a single data identification length L, an execution time, an MAC address, a data identification and a separator; wherein:

deepening application ID: 0x0001 represents a momentary freeze configuration; 0x0002 represents a momentary freeze reading; other reservations;

direction: BIT0 indicates the transmission direction, 0 is downlink, 1 is uplink; the other bits are reserved;

message header length: the length comprises the total byte length from the message header length to the destination MAC, and the length is fixed to be 22 bytes;

freezing ID: a unique identification for frozen data, which ID may be randomly generated;

freeze data control word: D0-D3 represent frozen data protocol types, 0 represents transparent transmission, 1 represents DL/T645-1997, 2 represents DL/T645-2007, 3 represents DT/T698.45, and other values are reserved; D4-D7 represent the number of data identifications;

single data identification length L: a byte length for identifying a subsequent data identification;

execution time: the execution time is fixed to 0;

MAC address: the MAC address is a table number positive sequence, all 99 represents a broadcast address, and no response is needed when the target MAC is the broadcast address;

data identification: the byte length corresponds to a single data identification length L;

a separator: 0 xAA.

5. The HPLC-based synchronous acquisition method for the instantaneous analog quantity of the station electric energy meter, according to claim 1, wherein the extended carrier communication protocol in step 2 is a deepened application, and the execution time is as follows: the current network reference time CUR _ NTB +5 min.

6. The HPLC-based synchronous acquisition method for the instantaneous analog quantity of the electric energy meter in the distribution room according to claim 5, wherein in step 4, the concentrator sends a meter reading message to read the instantaneous frozen data from the STA node, wherein the adopted protocol type is deepened application;

the interval between the transmission of the start broadcast command and the instantaneous meter reading freezing of the concentrator is more than 5 min.

7. The HPLC-based synchronous acquisition method for the instantaneous analog quantity of the station electric energy meter, according to claim 1, wherein the instantaneous freezing command in step 2 carries an instantaneous freezing configuration message, the format of the instantaneous freezing configuration message comprises a field, a byte number, a bit and a field size, the field comprises a protocol version number, a message header length, a reserved and forwarded protocol type, a data length and a deepened application data field; wherein:

forwarding protocol type definition: 0: transparent; 1: 645 to 97; 2: 645-07; 3: 698; 4: performing security authentication; 0x 0D: deepening application; 0x 0E: 376.2, respectively;

the general message structure of the application data field comprises a general message header and a specific application service message, and the field of the general message header format comprises a deepening application ID, a direction bit and a reservation.

8. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the HPLC-based transient analog synchronous acquisition method of a bay electric energy meter according to any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of remote acquisition of power consumption information, in particular to a method for synchronously acquiring instantaneous analog quantity of a platform area electric energy meter based on HPLC.

Background

At present, the topology of a 10kV power distribution network is relatively accurate, but the topological structure of a low-voltage distribution network (particularly a rural area) in a transformer area cannot be timely and accurately updated due to personnel investment, technical level and the like after power supply is transferred or a branch outlet line is adjusted, so that the network model of a transformer-low-voltage branch outlet line-low-voltage users in a GIS system and a metering system is distorted. At present, a power grid company still lacks a real-time effective technical means in the aspect of dynamic monitoring of a low-voltage power distribution network topology in a transformer area.

According to the existing scheme, the wiring branch relation between meter boxes is analyzed by using the synchronous instantaneous analog quantity of the electric energy meter, but the instantaneous freezing data identification of the electric energy meter is fixed, the freezing flexibility cannot be met, the synchronous instantaneous freezing of the electric energy meter in a transformer area cannot be achieved, and therefore the instantaneous analog quantity freezing of the electric energy meter needs to be carried out by developing an HPLC module end.

Disclosure of Invention

The invention aims to solve the technical problems that in the prior art, the wiring branch relation between meter boxes is analyzed by utilizing synchronous instantaneous analog quantity of an electric energy meter, but the instantaneous freezing data identification of the electric energy meter is fixed, the freezing flexibility cannot be met, and the synchronous instantaneous freezing of the electric energy meter in a transformer area cannot be achieved. The invention aims to provide a method for synchronously acquiring instantaneous analog quantity of a power meter in a distribution area based on HPLC (high performance liquid chromatography). A momentary freezing task is sent to the power meter under the distribution area in a broadcasting mode by relying on an HPLC network clock, the frozen data item can be flexibly configured, an HPLC module reads the data of the power meter and caches the data after receiving a command, and after the freezing task is finished, the related momentary frozen data can be continuously read through the HPLC network.

The invention is realized by the following technical scheme:

the invention provides a synchronous acquisition method of instantaneous analog quantity of a platform area electric energy meter based on HPLC, which comprises the following steps:

step 1: the concentrator sends an instant freezing task to the CCO module by sending a broadcast starting command; the instant freezing configuration message is loaded in the starting broadcast command;

step 2: the CCO module sends a broadband carrier broadcast timing extension message through an extended carrier communication protocol according to a received broadcast starting command, and finishes broadcasting an instantaneous freezing command issued by a forwarding concentrator to a station area STA node in the HPLC network;

and step 3: the STA node performs data freezing according to the received instantaneous freezing command and the execution time to obtain instantaneous freezing data and caches the instantaneous freezing data;

and 4, step 4: and the concentrator sends a meter reading message to read the instantaneous frozen data from the STA node, and the STA node replies the instantaneous frozen data to realize microsecond-level synchronous acquisition of instantaneous analog quantity of the electric energy meter in the transformer area.

The working principle is as follows: based on the blank in the prior art, the problem of synchronous instantaneous freezing of electric meters in a distribution area cannot be solved, the invention designs a method for synchronously acquiring instantaneous analog quantity of electric energy meters in the distribution area based on HPLC, and the design concept is that a concentrator needs instantaneous freezing data of STA to realize synchronous acquisition.

The invention has the following characteristics: (1) according to the invention, the command transmission time is accurately calculated by adopting an HPLC network NTB (network reference time), and meanwhile, the command transmission delay time is compensated, so that all user electric energy meters in a distribution area can finish analog quantity freezing in accurate and synchronous time; (2) the invention adopts a mode of presetting the freezing time of the instantaneous analog quantity, thereby reducing the error; (3) the invention adopts a broadcasting mode to send an instantaneous analog quantity freezing command; (4) the invention can synchronously freeze any instantaneous analog quantity, and store the analog quantity in the HPLC module and collect the analog quantity at the same time.

The invention can achieve synchronous instantaneous freezing of the electric meters in the distribution area, is expanded on the basis of the conventional HPLC carrier protocol, 1376.1 protocol and southern network local interface protocol, realizes the functions of instantaneous synchronous freezing and acquisition of analog quantity on the basis of not influencing various functions in standard specifications, provides a data base for analyzing the instantaneous power utilization condition of the distribution area and provides an accurate data source for a topological big data analysis scheme of the distribution area.

Further, the instant freezing configuration message is carried in the starting broadcast command in step 1, wherein the instant freezing configuration message has main parameters of configuration including data items to be instantly frozen and instant freezing time.

Further, the format of the start broadcast command in step 1 includes data content, data format, and byte number, where the data content includes a control word, a message length L, and a message content.

Further, the data content of the instant freezing configuration message in step 1 includes a deepened application ID, a direction bit, a message header length, a reservation, a freezing ID, a freezing data control word, a single data identifier length L, an execution time, an MAC address, a data identifier, and a delimiter; wherein:

deepening application ID: 0x0001 represents a momentary freeze configuration; 0x0002 represents a momentary freeze reading; other reservations;

direction: BIT0 indicates the transmission direction, 0 is downlink, 1 is uplink; the other bits are reserved;

message header length: the length comprises the total byte length from the message header length to the destination MAC, and the length is fixed to be 22 bytes;

freezing ID: a unique identification for frozen data, which ID may be randomly generated;

freeze data control word: D0-D3 represent frozen data protocol types, 0 represents transparent transmission, 1 represents DL/T645-1997, 2 represents DL/T645-2007, 3 represents DT/T698.45, and other values are reserved; D4-D7 represent the number of data identifications;

single data identification length L: a byte length for identifying a subsequent data identification;

execution time: the execution time is fixed to 0;

MAC address: the MAC address is a table number positive sequence, all 99 represents a broadcast address, and no response is needed when the target MAC is the broadcast address;

data identification: the byte length corresponds to a single data identification length L;

a separator: 0 xAA.

Further, in the extended carrier communication protocol in step 2, the protocol type is a deepened application, and the execution time is: the current network reference time CUR _ NTB +5 min.

Further, in the step 4, the concentrator sends a meter reading message to read the instant frozen data from the STA node, wherein the adopted protocol type is deepened application;

the interval between the transmission of the start broadcast command and the instantaneous freeze reading of the concentrator must be greater than 5 min.

Further, the instant freezing command in step 2 carries an instant freezing configuration message, the format of the instant freezing configuration message includes a field, a byte number, a bit and a field size, and the field includes a protocol version number, a message header length, a reservation, a forwarding protocol type, a data length and a deepened application data field; wherein:

forwarding protocol type definition: 0: transparent; 1: 645 to 97; 2: 645-07; 3: 698; 4: performing security authentication; 0x 0D: deepening application; 0x 0E: 376.2, respectively;

the general message structure of the application data field comprises a general message header and a specific application service message, and the field of the general message header format comprises a deepening application ID, a direction bit and a reservation.

The invention also provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to realize the HPLC-based synchronous acquisition method for the transient analog quantity of the platform electric energy meter.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the invention can achieve synchronous instantaneous freezing of the electric meters in the distribution area, is expanded on the basis of the conventional HPLC carrier protocol, 1376.1 protocol and southern network local interface protocol, realizes the functions of instantaneous synchronous freezing and acquisition of analog quantity on the basis of not influencing various functions in standard specifications, provides a data base for analyzing the instantaneous power utilization condition of the distribution area and provides an accurate data source for a topological big data analysis scheme of the distribution area.

2. According to the invention, the command transmission time is accurately calculated by adopting an HPLC network NTB (network reference time), and meanwhile, the command transmission delay time is compensated, so that all user electric energy meters in a distribution area can finish analog quantity freezing in accurate and synchronous time;

3. the invention adopts a mode of presetting the freezing time of the instantaneous analog quantity, thereby reducing the error;

4. the invention adopts a broadcasting mode to send an instantaneous analog quantity freezing command;

5. the invention can synchronously freeze any instantaneous analog quantity, and store the analog quantity in the HPLC module and collect the analog quantity at the same time.

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 application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a flow chart of the method for synchronously acquiring instantaneous analog quantity of a platform area electric energy meter based on HPLC.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Examples

Considering the subsequent multi-protocol support of the electric energy meter, the expansibility of deepening application and the existing protocol of broadband carrier meter reading, the newly added deepening application protocol type is used for realizing instant freezing. The advantage of the extension protocol type is that the carrier does not need to extend the service message for supporting the service, but only needs to identify the particular protocol.

The implementation of the instant freeze function is divided into parameter configuration and data reading. The present invention will be described in further detail with reference to the accompanying drawings and examples.

The invention relates to a method for synchronously acquiring instantaneous analog quantity of a platform area electric energy meter based on HPLC, which is implemented specifically as follows:

as shown in fig. 1, it is a flow chart of the implementation of the instant freeze function, which includes the following steps:

step 1: the concentrator issues an instantaneous freeze command: the concentrator sends an instant freezing task to the CCO module by sending a broadcast starting command; the instant freezing configuration message is loaded in the starting broadcast command;

specifically, the instantaneous freezing configuration in the instantaneous freezing configuration message is realized by directly starting a broadcast command by the national network, the format of a broadcast data unit is started as shown in table 1.1, the south network is realized by adding task identifiers in an extension manner as shown in table 1.3, and main parameters of the configuration include data items needing instantaneous freezing and instantaneous freezing time. The relevant protocol is as follows:

1. local communication protocol of state network concentrator

The instant freeze configuration is directly implemented by the start broadcast command (AFN-05H, Fn-F3) of 1376.2, and the message content in the start broadcast data unit is replaced by the instant freeze configuration message, where the specific instant freeze configuration message is required to be as shown in table 1.2.

TABLE 1.1

Data content	Data format	Number of bytes
			Control word	BIN	1
Message length L	BIN	1
			Message content	——	L

Supplementary explanation:

1) control word: 00H is transparent transmission; 01H is DL/T645-1997; 02H is DL/T645-2007; 03H is DT/T698.45; 04H is security authentication; 0xD is a deepened application; 0xE is 376.2; and the others are reserved.

2) Message length L: total length of original message data of the communication protocol.

3) Message content: raw message data of a communication protocol.

TABLE 1.2

Data content	Data format	Number of bytes
			Deepening application ID	BIN	2
Direction of orientation	BIN	2
			Header length of message	BIN	1
Retention	BIN	1
			Frozen ID	BIN	2
Freezing data control words	BIN	1
			Single data identification length L	BIN	1
Execution time	BIN	4
			Original MAC	BIN	6
Destination MAC	BIN	6
			Data identification 0	BIN	L
Separator symbol	BIN	1
			Data identification 1	BIN	L
Separator symbol	BIN	1
			…	…	…
Data identification n	BIN	L

Supplementary explanation:

1) deepening application ID: 0x0001 represents a momentary freeze configuration; 0x0002 represents a momentary freeze reading; and (4) other reservations. Here, using the instant freeze configuration function, the fixed fill is: 0x0001.

2) Direction: BIT0 indicates the transmission direction, 0 is downlink, 1 is uplink; the other bits are reserved.

3) Message header length: the length contains the total byte length from the header length to the destination MAC, which is fixed to 22 bytes.

4) Freezing ID: a unique identification for frozen data, which ID may be randomly generated.

5) Freeze data control word: D0-D3 represent frozen data protocol types, 0 represents transparent transmission, 1 represents DL/T645-1997, 2 represents DL/T645-2007, 3 represents DT/T698.45, and other values are reserved; D4-D7 represent the number of data identifications, and are not more than ten in suggestion;

6) single data identification length L: for identifying the byte length of the subsequent data identification.

7) Execution time: the execution time is fixed to 0.

8) MAC address: the MAC address is in positive sequence of table number, all 99 represents the broadcast address, and no response is needed when the target MAC is the broadcast address.

9) Data identification: the byte length corresponds to a single data identification length L.

10) A separator: 0 xAA.

2. Local communication protocol of south network concentrator

And instantaneous freezing configuration is realized by extending an added task data identifier (E802020201), the format of an added task data unit is shown in table 1.3, the message content is an instantaneous freezing configuration message, the format of the instantaneous freezing configuration message refers to instantaneous freezing configuration in the 1376.2 protocol, and a task mode word reserved D6 is used for supporting deepening applications.

TABLE 1.3

Supplementary explanation:

1) deepening application identification: when the task response identifier is 0, the deepened application identifier 0 is a broadcast time correction, and 1 is a deepened application;

step 2: the CCO module broadcasts and forwards an instantaneous freezing command to the STA nodes of the station area through the HPLC network: the CCO module sends a broadband carrier broadcast timing extension message through an extended carrier communication protocol according to a received broadcast starting command, and finishes broadcasting an instantaneous freezing command issued by a forwarding concentrator to a station area STA node in the HPLC network;

specifically, the CCO module issues an instantaneous freeze command to the STA node forwarding concentrator in the HPLC network through an extended carrier communication protocol. The specific format of the instant freeze configuration message is shown in table 2.1. The time correcting message extends the original reserved domain to be a forwarding protocol type and is used for issuing the instant freezing configuration message.

TABLE 2.1

Supplementary explanation:

1) extended forwarding protocol type definition: 0: transparent; 1: 645 to 97; 2: 645-07; 3: 698; 4: performing security authentication; 0x 0D: deepening application; 0x 0E: 376.2, respectively;

2) deepening the general message structure of the application data field: the deepened application message comprises a general message header and a specific application service message, and the format of the general message header is shown in a general message header format table 2.2;

TABLE 2.2

Domain	Number of bytes	Bit position	Domain size (bit)
				Deepening application ID	0-1	0-15	16
Direction of orientation	1	0	1
				Retention	1-2	1-15	15

Supplementary explanation:

1) the deepened application ID is defined as follows: 0x 0001: a momentary freeze configuration; 0x 002: instantaneous freeze reading; and others: reserving;

2) direction: 0 is downlink, the format of the downlink message is shown in table 2.3, 1 is uplink, and the format of the uplink message is shown in table 2.4;

TABLE 2.3

Supplementary explanation:

1) message header length: length 22, no variable length data;

2) freezing ID: a unique identification for frozen data, which ID may be randomly generated;

3) execution time: the execution time is fixed to 0 and the unit is 40 ns;

4) MAC address: the MAC address is a table number positive sequence, all 99 represents a broadcast address, and no response is needed when the target MAC is the broadcast address;

5) frozen data protocol type definition: 0: transparent; 1: 645 to 97; 2: 645-07; 3: 698-45;

6) a separator: 0 xAA;

7) the number of data identifications is not more than 10.

TABLE 2.4

Domain	Number of bytes	Bit position	Domain size (bit)
				Header length of message	0	0-7	8
Retention	1	0-3	4
				Answer state	1	4-7	4
Original MAC	2-7	0-47	48
				Destination MAC	8-13	0-47	48

Supplementary explanation:

1) the response state is as follows: 0 is a normal response; 1 is an abnormal response, others are reserved.

2) The destination MAC does not respond when it is a broadcast address.

And step 3: after receiving the instant freezing command, the STA node reads related data and caches: the STA node performs data freezing according to the received instantaneous freezing command and the execution time to obtain instantaneous freezing data and caches the instantaneous freezing data;

specifically, after receiving the instant freeze command, the STA node reads the data items related to the electric meter at a specific time according to the configured instant freeze command, and performs local caching to wait for the concentrator to read.

And 4, step 4: and the concentrator sends a meter reading message to read the instantaneous frozen data from the STA node, and the STA node replies the instantaneous frozen data to realize microsecond-level synchronous acquisition of instantaneous analog quantity of the electric energy meter in the transformer area.

Step 41: the concentrator reads the relevant instantaneous freeze data:

specifically, the concentrator directly replaces 645 messages in the normal meter reading process with the data unit format of the instant data reading through the instant data reading. Meanwhile, the protocol type in the 1376.2 message related to the copying is modified into 0x 0D-deepening application.

The format of the local communication protocol downlink message of the state network concentrator is shown in table 4.1, and the format of the uplink message is shown in table 4.2.

TABLE 4.1

Supplementary explanation:

1) deepening application ID: 0x0001 represents a momentary freeze configuration; 0x0002 represents a momentary freeze reading; and (4) other reservations. Here, using the instant freeze configuration function, the fixed fill is: 0x 0002;

2) direction: BIT0 indicates the transmission direction, 0 is downlink, 1 is uplink; the other bits are reserved.

3) Message header length: the length comprises the total byte length from the message header length to the destination MAC, and the length is fixed to be 22 bytes;

4) freezing ID: a freeze ID corresponding to the instantaneous freeze configuration;

5) freeze data control word: D7-D4 indicate the number of the response data identifications, and the number is not more than 10; D3-D0 represent frozen data protocol types, 0 represents transparent transmission, 1 represents DL/T645-1997, 2 represents DL/T645-2007, 3 represents DT/T698.45, and other values are reserved;

6) single data identification length L: a byte length for identifying a subsequent data identification;

7) MAC address: the MAC address is a table number positive sequence, all 99 represents a broadcast address, and no response is needed when the target MAC is the broadcast address;

8) data identification: the byte length corresponds to a single data identification length L;

9) a separator: 0 xAA.

TABLE 4.2

Supplementary explanation:

1) deepening application ID: 0x0001 represents a momentary freeze configuration; 0x0002 represents a momentary freeze reading; and (4) other reservations. Here, using the instant freeze configuration function, the fixed fill is: 0x 0002;

2) direction: BIT0 indicates the transmission direction, 0 is downlink, 1 is uplink; the other bits are reserved;

3) message header length: the length comprises the total byte length from the message header length to the destination MAC, and the length is fixed to be 18 bytes;

4) the response state is as follows: D7-D4 indicate response status, 0 indicates normal response, 1 indicates abnormal response, and other values remain; D3-D0, and reserving;

5) freezing ID: a freeze ID corresponding to the instantaneous freeze configuration;

6) freeze data control word: D7-D4 represent the number of identifiers of response data; D3-D0 represent frozen data protocol types, 0 represents transparent transmission, 1 represents DL/T645-2007, 2 represents DL/T645-1997, 3 represents DT/T698.45, and other values are reserved;

7) single data identification length L: a byte length for identifying a data identification in a subsequent data field;

8) MAC address: the MAC address is a table number positive sequence, all 99 represents a broadcast address, and no response is needed when the target MAC is the broadcast address;

9) data field: the full response content representing the identity of the instant freeze data;

a) length: the length comprises the data identification and the length of the data content;

b) data identification: the byte length corresponds to a single data identification length L;

c) data content: the data marks the corresponding data content;

10) a separator: 0 xAA.

And (3) instantaneous data reading of a local communication protocol of the south network concentrator, and directly replacing 645 messages in a normal meter reading process with a data unit format of instantaneous data reading. Meanwhile, the protocol type in the reading related message is modified into 0x 0D-deepened application. The format of the instant freeze read message is referred to the instant read in 1376.2 protocol.

Step 42: carrier reply-related instantaneous frozen data

Specifically, the CCO module forwards the concentrator through the expanded carrier protocol to read relevant data which is instantly frozen, the STA node receives the command and then replies the cached data to the CCO module by using the expanded carrier protocol according to the requirement of the concentrator, and the CCO module replies the concentrator again. The format of the downlink message read by instant freezing is shown in table 5.1, and the format of the uplink message is shown in table 5.2.

TABLE 5.1

TABLE 5.2

Supplementary explanation:

1) the response state is as follows: 0 is a normal response; 1 is abnormal response, and others are reserved;

2) freezing ID: when the frozen data does not exist, the response state is an abnormal response, and the data content is null;

3) segmentation symbol: 0 xAA.

The invention designs a synchronous acquisition method of instantaneous analog quantity of an electric energy meter in a platform area based on HPLC, and the design concept is that a concentrator needs instantaneous freezing data of STA to realize synchronous acquisition.

The invention can achieve synchronous instantaneous freezing of the electric meters in the distribution area, is expanded on the basis of the conventional HPLC carrier protocol, 1376.1 protocol and southern network local interface protocol, realizes the functions of instantaneous synchronous freezing and acquisition of analog quantity on the basis of not influencing various functions in standard specifications, provides a data base for analyzing the instantaneous power utilization condition of the distribution area and provides an accurate data source for a topological big data analysis scheme of the distribution area.

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.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.