CN117527868A - Control system and method for communication between intelligent fusion terminal and intelligent electric power instrument - Google Patents

Abstract

A control system and a control method for communication between an intelligent fusion terminal and an intelligent electric power instrument are provided, a data acquisition module is in data communication with the intelligent electric power instrument through a serial port management module, a received data frame is analyzed through a protocol analysis module, data is written into a data center through a data refreshing module, and the data center processes and stores the data. The invention reduces the repeated development, management, maintenance and upgrading cost of the fusion terminal software, reduces the workload of management operation and maintenance, improves the regional energy management capability and improves the lean management level of the transformer area.

Description

Control system and method for communication between intelligent fusion terminal and intelligent electric power instrument

Technical Field

The invention relates to a control system and a control method for controlling an intelligent fusion terminal to communicate with an intelligent electric power instrument.

Background

The intelligent fusion terminal is used as the core of the low-voltage power distribution Internet of things, is the most-number side equipment in the ubiquitous power Internet of things technical architecture system, has strong edge computing capability, and is the 'brain' of a low-voltage power distribution area. Through the design concept of a software defined terminal, the functions of the distribution transformer terminal and the concentrator are integrated, various low-voltage intelligent devices such as an intelligent ammeter, a concentrator, reactive compensation equipment, a circuit breaker, a charging pile and the like can be flexibly connected, plug and play, interconnection and intercommunication among the devices are realized, the homologous acquisition of distribution data is supported, and the distribution service application is supported through edge calculation energization. The application scene relates to nutrition and distribution information fusion, distribution transformer operation panoramic monitoring and health diagnosis, low-voltage topology identification, fault accurate research and judgment, active rush repair, intelligent load prediction, lean line loss analysis, electric energy quality management, distributed photovoltaic access management, AI visual inspection and the like. The future development direction is to construct a novel power distribution Internet of things construction scheme under the power system by taking intelligent terminals of a platform area, an edge Internet of things gateway, an Internet of things DTU/FTU and the like as cores and intelligent terminal equipment of an intelligent switch, a temperature measurement suite, an AI camera and the like as the basis.

As a typical low-voltage intelligent device, the intelligent electric power instrument is generally connected with a fusion terminal by Modbus/RS485 for networking, so as to realize measurement, metering, analysis, diagnosis, control and protection of electric parameters of a power grid. Because Modbus protocol has the openness characteristic, instrument manufacturer can edit the protocol content as required to lead to different manufacturers or ammeter of same manufacturer different models in address and function difference, and then lead to the difference of communication format. When the fusion terminal collects data, different logics are needed to be used for programming, so that the same function value can be read, and development cost is increased. In practical application, the low-voltage transformer station has wide multiple sides and large stock base, and electric power instrument manufacturers have different types and complicated types, so that the difficulty in developing software for accessing the instrument into the fusion terminal is increased, and the application of the fusion terminal is severely restricted.

The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Disclosure of Invention

The invention aims to provide a control system and a control method for communication between an intelligent fusion terminal and an intelligent electric power instrument, which reduce the repeated development, management, maintenance and upgrading cost of fusion terminal software, reduce the workload of management operation and maintenance, improve the regional energy management capability and improve the lean management level of a platform region.

In order to achieve the above object, the present invention provides a control system for communication between an intelligent fusion terminal and an intelligent power meter, comprising:

the data acquisition module is used for acquiring a message sent by the intelligent electric power instrument through the RS-485 serial port;

the protocol analysis module is used for analyzing the message sent by the intelligent electric power instrument and collected by the data collection module based on a unified communication method between the intelligent fusion terminal and the intelligent electric power instrument, and extracting a data frame contained in the message;

and the data center is used for processing and storing the data frames in the message sent by the acquired intelligent electric power instrument.

The control system further comprises: and the serial port management module is used for managing and configuring the RS-485 serial port connected with the intelligent fusion terminal and the intelligent power instrument.

The control system further comprises: and the configuration management module is used for configuring communication point tables and data communication processing modes of various intelligent power meters communicated with the intelligent fusion terminal.

The control system further comprises: and the data refreshing module is used for refreshing the acquired data frames of the intelligent electric power instrument in a polling timing mode and sending the data frames to the data center.

The control system further comprises: and the log management module is used for managing interaction logs in the communication process of the intelligent fusion terminal and the intelligent power instrument.

The control system is realized based on an edge computing operation system of the intelligent fusion terminal.

The invention also provides a control method for the communication between the intelligent fusion terminal and the intelligent electric power instrument, wherein the data acquisition module is in data communication with the intelligent electric power instrument through the serial port management module, the received data frame is analyzed through the protocol analysis module, and then the data is written into the data center through the data refreshing module, and the data center processes and stores the data.

The configuration management module configures communication point tables and data communication processing modes of various intelligent power meters communicated with the intelligent fusion terminal.

And the data refreshing module refreshes the acquired data frames of the intelligent electric power instrument in a polling timing mode and sends the data frames to the data center.

And the log management module manages interaction logs in the communication process of the intelligent fusion terminal and the intelligent electric power instrument.

According to the invention, the control system and the method for the communication between the intelligent fusion terminal and the intelligent power instrument are developed on the edge computing operation system of the intelligent fusion terminal, so that the repeated development, management, maintenance and upgrading costs of the fusion terminal software are reduced, and the workload of management, operation and maintenance is reduced. The invention provides services such as accurate information management and control, lean operation and maintenance, power quality operation index analysis and the like of low-voltage distribution electric equipment, improves regional energy management capability, meets requirements of distributed energy access, diversified load management and control and the like, and realizes flexible and rapid deployment of distribution network business. By means of the on-site decision making and cloud cooperative mechanism of the transformer area, the boosting low-voltage distribution network is changed from the passive management mode to the active management mode, and the lean management level of the transformer area is improved.

Drawings

FIG. 1 is a framework diagram of an edge computing operating system of an intelligent fusion terminal.

FIG. 2 is a data access interaction flow diagram of a control system in an edge computing operating system.

FIG. 3 is a flow chart of event notification interactions in an edge computing operating system.

Fig. 4 is a block diagram of a system for controlling communication between an intelligent fusion terminal and an intelligent power meter.

Detailed Description

The following describes a preferred embodiment of the present invention with reference to fig. 1 to 4.

The invention provides a unified communication method of an intelligent power instrument and an intelligent fusion terminal, which is suitable for communication between the intelligent power instrument and the intelligent fusion terminal (distribution Transformer supervisory Terminal Unit, TTU, distribution transformer monitoring terminal), wherein the intelligent fusion terminal is connected with the intelligent power instrument through an RS-485 bus, the intelligent fusion terminal is used as a host, the intelligent power instrument is used as a slave, and the host and the slave are communicated by adopting the unified communication method provided by the invention.

The unified communication method provided by the invention is a communication connection mode which adopts a master-slave response mode on one communication line. The signal of the master is first addressed to a slave with a unique address, and then the response signal from the slave is transmitted to the master in the opposite direction, i.e. the signal transmits all communication data streams in opposite directions on a single communication line (half duplex mode of operation). Communication is only allowed between the master and the slaves, but not between the individual slaves, so that the slaves do not occupy the communication line when they initialize, but are limited to responding to query signals arriving at the master. In RTU (Remote Terminal Unit) mode, data is transmitted in binary form. Each byte has a 1-bit start bit, an 8-bit data bit, a 1-bit stop bit, and an optional parity bit. The adjacent time between two bytes in the transmission process of the data frame is not more than 3.5 characters, otherwise, the data frame is regarded as the end of the transmission of one frame of data.

The structure of the communication frame (i.e. message format) of the unified communication method provided by the invention is shown in table 1, and each frame of data consists of four parts, namely an address field, a function code field, a data field and a check field.

TABLE 1

Address domain	Functional code domain	Data field	Verification domain
				1 BYTE	1 BYTE	N BYTE	2 BYTE

The address field is an address field in a communication frame, the content of the address field is a slave address, the address field is composed of 1 byte, and the value range is 0-247 (wherein 0 is a broadcast address). The host gates the slaves by placing the slave address to be contacted in the address field in the message. When the slave sends a response message, its own address is also put into the address field so that the master knows which slave responds.

The function code is used to represent the function of the message frame, and is composed of 1 byte. The slave machine executes the corresponding function according to the function code, and after the execution is completed, the same function code is set in the returned response message frame. If an exception occurs, the Most Significant Bit (MSB) of the function code is set to 1 in the returned message frame so that the host can identify the exception response.

Table 2 lists the functional codes supported by the communication between the master and slave, and can be divided into two types, bit operation and word operation.

TABLE 2

Function code	Meaning of the following description	Bit/word operation
			0x02	Reading on-off input or alarm state	Bit manipulation
0x03	Reading instrument parameters or analog values	Word manipulation
			0x06	Writing a single register instruction	Word manipulation
0x10	Writing multiple register instructions	Word manipulation

The data field is closely related to the function code, and is used for storing specific data which needs to be operated by the function code, and the content of the data can be a numerical value, a reference address or a set value. The length of the data field may vary depending on its specific function.

The high order bytes of the data field are preceded and the low order bytes are followed. For example:

the 1 16-bit register contains a value of 0x12AB, and the register value transmission sequence is:

high byte=0x12, low byte=0xab.

In the unified communication method provided by the invention, the transmitted data types are 4 kinds:

u16: unsigned 16 bits;

s16: the sign is 16 bits, and the highest bit is a sign bit;

u32: unsigned 32 bits;

s32: there are 32 bits of the sign, the most significant bit being the sign bit.

The specific data format is described as follows:

u16 and S16: the 16-bit shaping consists of 2 bytes, namely byte0 (bit 0-bit 7) and byte1 (bit 8-bit 15), and the register data transmission sequence is as follows: byte1, byte0.

U32 and S32: the 32-bit long shaping consists of 4 bytes, namely byte0 (bit 0-bit 7), byte1 (bit 8-bit 15), byte2 (bit 16-bit 23) and byte3 (bit 24-bit 31), and the register data transmission sequence is as follows: byte1, byte0, byte3, byte2.

The check field adopts 16-bit CRC check and occupies two bytes.

The CRC value is calculated by the transmitting device and then appended to the data frame, and the receiving device recalculates the CRC value when receiving the data and then compares it with the value in the received CRC field, and if the two values are not equal, an error occurs.

Note that: the check field is appended at the end of the message, with the low byte preceding and the high byte following the addition. The upper byte of the CRC is the last byte of the transmitted message.

The process of generating a CRC is:

1. a 16-bit register is preset as FFFFH (16-ary, all 1's), called CRC register.

2. The 8 bits of the first byte in the data frame are exclusive-ored with the low bytes in the CRC register and the result is stored back into the CRC register.

3. The CRC register is shifted one bit to the right, the most significant bit is filled with 0, and the least significant bit is shifted out and detected.

4. Repeating the 3 rd step (next shift) if the bit shifted out in the previous step is 0; if the bit shifted out in the previous step is 1, the CRC register is exclusive-ored with a preset fixed value (0A 001H).

5. Steps 3 and 4 are repeated until 8 shifts are performed, thus completing a complete eight bit process.

6. Steps 2 through 5 are repeated to process the next eight bits until all byte processing ends.

7. The final CRC register value is the CRC value.

An abnormal response from either the master or the slave may result in a data processing error. After a request is made by the host, one of the following events may occur:

(1) If the slave receives the host request, no communication error occurs and the request is processed correctly, the slave will return a normal response.

(2) If the slave does not receive the host request because of a communication error, the slave will not return a response and the host program will eventually process a timeout condition for the request.

(3) If the slave receives the host request, but detects a communication error, the slave will not return a response and the host program will eventually process a timeout condition for the request.

(4) If the slave receives a host request, no communication error occurs, but the request cannot be processed (e.g., the request is to read an absent register), the slave will return an exception response to inform the host of what error occurred.

The messages of the abnormal response have two domains different from the normal response: a function code domain and a data domain.

Functional code domain: in a normal response, the slave responds to the originally requested function code with a response function code field. The Most Significant Bit (MSB) of all function codes is 0 (their values are all below hexadecimal 80). In the abnormal response, the slave sets the MSB of the function code to 1. This causes the function code value in the abnormal response to be 128 (0 x 80) higher than the function code value in the normal response. By setting the MSB of the function code, the application of the host can recognize the abnormal response and can detect the data field of the abnormal code.

Data field: in a normal response, the slave may return data or statistics (any messages required in the request) in the data field. In the exception response, the slave returns an exception code in the data field. Table 3 illustrates the meaning of the exception code.

TABLE 3 Table 3

Broadcasting a command: if the address is 0x00, it is considered a broadcast command, i.e., all slaves will receive the information sent by the master and the slaves will not return a response. The present specification specifies that the broadcast command must be a write command 0x10 for timing.

The present method provides a variety of message format instructions, such as:

s1, reading the input or alarm state of the switch value (function code 02H)

Description: the 02H command is a bit operation, each bit of the data value returned by the slave corresponds to a state of a switching value, 1 represents a closed state, and 0 represents an open state.

The data is stored in small form, i.e. the least significant bits are stored at the memory least significant addresses (on the right side of the binary). Every 8 bits constitute one byte, and when the number of inquiry switching values is not a multiple of 8, the remaining bits are added with 0 complement bits.

In this example, 6 on states are read, so 1 byte is required to store the response data, i.e., n=1 in the table above, and a binary "0000 0010" of the return data value "0x02" indicates that the 2 nd switching value input is closed.

If 10 entry states are read, 2 bytes are needed to store the response data, returning the number of bytes n=2.

S2, read register (function code 03H)

The above example start register address "13" indicates the first address of read register data, and the register number "00" 08 "indicates data length 8 word data. The specific content is shown in MODBUS-RTU communication address information table.

S3, write register (function code 06H, 10H)

(1) Function code 06H writes a single holding register.

If the data is successfully written, the slave returns an instruction sent by the host, namely the response data is the same as the request data.

(2) The function code 10H writes a plurality of registers in succession. The values requested to be written are illustrated in the requested data field, each register dividing the data into two bytes.

Description: to ensure proper communication, the number of registers is limited to 25 per execution of a host request. The above example start register address "13BF" indicates the first address of the meter writing time, the register number "0x000x03" indicates 3 Word data to be written, and the write data "0x01 0x02 0x03 0x04 0x05 0x06" indicates that the meter writing time is 01 year 02 month 03 day 04 minute 06 seconds.

The specific communication point table is shown in a MODBUS-RTU communication address information table, and the protocol specifies:

the communication uploading values are primary side data;

the data length is in words, i.e. a single register length is 16 bits;

description of data types:

u16: unsigned 16 bits;

s16: the sign is 16 bits, and the highest bit is a sign bit;

u32: unsigned 32 bits;

s32: there are 32 bits of the sign, the most significant bit being the sign bit.

Electric meter

1. The read power value is the primary side value.

2. The range of the electric energy register value is 0-999, 999, 999, and the electric energy register value automatically turns to 0 after overflowing.

3. The coefficient is 0.1, representing the actual power value=register data value 0.1. For example, a forward power register value of 12345 indicates an actual power value of 1234.5kWh.

4. Each power value occupies 2 words, with the lower words preceding and the higher words following.

Message example: the current forward power ep_imp is read.

And (3) transmitting: 01 03 1388 00 02 40 A5

And (3) receiving: 01 03 04 1B 0B 0A 01 4A 75

The host send instructions are shown in the following table:

the slave response data is as follows:

the values of registers 5000 to 5001 (1388H to 1389H) are as follows:

the forward power in the message is 1b 0a 01, and when the forward power is analyzed, the forward power is converted into 0a 01 b 0b (HEX) = 167844619 (DEC), the coefficient is 0.1, and finally 16784461.9 is obtained after the forward power is reduced.

Remote measuring analog quantity point table

Message example: read A, B, C three-phase voltage

And (3) transmitting: 01 03 13B2 00 03A1 68

And (3) receiving: 01 03 06 08 97 08 98 08 98D0 05

After data recovery ua=219.9v, ub=220v, uc=220v

Meter time-point table

When the meter time is written, three registers of year, month, day, hour, minute and second must be written continuously.

Message example:

(1) Time of reading meter

And (3) transmitting: 01 03 13BF 00 03 30 AB

And (3) receiving: 01 03 06 11 03 0F 0B 0C 19 D0 28

(2) Meter writing time (01 year 02 month 03 day 04 time 05 minutes 06 seconds)

And (3) transmitting: 01 10 13BF 00 03 06 01 02 03 04 05 06 30 E5

And (3) receiving: 01 10 13BF 00 03 B5 68

Electric energy quality point meter

State quantity point table

/>

The function code of the state quantity point table is 02H.

Message example: read-in (DI) state

And (3) transmitting: 01 02 13 8800 02 7D 65

And (3) receiving: 01 02 01 02 20 49

The DI state returns that the content is converted to binary, with the upper bits preceding and the lower bits following. For example, the returned data content is 02, the binary representation is 0000 0010, i.e., the DI2 state is 1 and the DI1 state is 0.

In order to better realize that the intelligent fusion terminal performs information interaction with the intelligent electric power instrument by adopting the unified communication method, the invention provides a system and a method for controlling the communication between the intelligent fusion terminal and the intelligent electric power instrument, which are realized based on an edge computing operation system of the intelligent fusion terminal, access system platform resource data through an eSDK interface, further promote the deepening application of the fusion terminal and promote the digital construction of a power grid.

The system and the method for controlling the intelligent fusion terminal to communicate with the intelligent electric power instrument have the following three functions:

1. and (3) electric quantity collection: and acquiring information such as voltage, current, power, active power, reactive power, communication, time, demand, harmonic wave, maximum value, event record, history curve and the like of the intelligent electric power instrument field test.

2. Low-voltage outgoing line monitoring and fault grinding and judging: through intelligent electric power instrument access, realize low pressure outgoing line monitoring, the accurate analysis of trouble and initiative warning, the instant show of fault point.

3. Fault location analysis: the method realizes the operation data monitoring of the equipment (including basic telemetry data acquisition of three-phase current, three-phase voltage, power, three-phase angle and the like) and the remote signaling alarm state acquisition of the terminal downlink equipment.

The system for controlling the intelligent fusion terminal to communicate with the intelligent electric power instrument operates on an edge computing operation system of the intelligent fusion terminal, can access the resources of the edge computing operation system, and can also use an MQTT internal bus communication mechanism provided by the edge computing operation system to realize communication with other control systems (APP).

As shown in FIG. 1, within the edge computing operating system, an MQTT brooker service for message transfer is provided for internal MQTT (Message Queuing Telemetry Transport, message queue telemetry transport protocol) communications. Wherein OS physical source is a terminal hardware physical interface resource access interface. The edge computing operating system provides an eSDK interface and a terminal hardware resource interface for multiple control systems (APP) running thereon that can access system platform resource data.

The control system APP running on the edge computing operating system interacts with the eSDK (ecosystem software development kit, hua) interface using MQTT messages, mainly for both data access and event notification. The MQTT message is used to retrieve data (get), set data (set), or command operations (action), collectively referred to as "data access".

As shown in fig. 2, the initiator generates a request and the recipient replies with a response. The specific interaction flow is as follows:

1. after starting, eSDK first subscribes to MQTT Broker for requests that it can handle.

2. After the APP is started, the MQTT Broker is subscribed to the response it needs.

3. In the service processing process, the APP issues a data access request to the MQTT Broker.

4. The MQTT Broker forwards the data access request to the eSDK subscribed to the request.

5. After processing the received request, the eSDK issues a response to the MQTT Broker.

6. The MQTT Broker forwards the data access response to the APP subscribed to the response.

As shown in fig. 3, the eSDK acts as a notification information publisher and actively publishes a notification to the MQTT Broker, which forwards the notification to the APP subscribed to the notification, and the event notification does not need to be answered. The specific interaction flow is as follows:

1. after the APP is started, the MQTT Broker is subscribed to notifications of its interest.

2. The eSDK issues notifications to the MQTT Broker.

3. The MQTT Broker forwards the notification to the APP that subscribed to the notification.

The edge computing operating system provides the necessary hardware environment and hardware resource interfaces for the multiple control systems (APP) running on it. Standard network environment and GPIO operation interfaces are provided for each control system (APP), and dedicated physical interfaces are also specifically packaged for each control system (APP), wherein the RS-485 interface is shown in table 1.

Table 1 list of hardware resource interfaces

Open physical interface name	Access path	Remarks
			RS485-I	/dev/ttySZ3	Serial port
RS485-II	/dev/ttySZ4	Serial port
			RS485-III/RS232-I	/dev/ttySZ5	Serial port
RS485-IV/RS232-II	/dev/ttySZ6	Serial port

As shown in fig. 4, a control system for communication between an intelligent fusion terminal and an intelligent electric power meter provided by the invention specifically includes:

the configuration management module 1 is used for configuring communication point tables and data communication processing modes of various intelligent power meters communicated with the intelligent fusion terminal;

the serial port management module 2 is used for managing and configuring an RS-485 serial port connected with the intelligent fusion terminal and the intelligent power instrument;

the data acquisition module 3 is used for interactively acquiring the numerical value of the intelligent electric power instrument through the RS-485 serial port and serial port management;

the protocol analysis module 4 is used for analyzing the message sent by the intelligent electric power instrument based on the Modbus-RTU protocol and extracting the data value contained in the message;

the data refreshing module 5 is used for refreshing the acquired data of the intelligent electric power instrument by adopting polling timing, so as to ensure the reliability of the data of the intelligent electric power instrument;

the data center 6 is used for processing and storing the acquired data of the intelligent electric power instrument through the technologies of edge calculation, virtualization, automatic management and the like, and provides faster, safer and more flexible data processing and storage capacity;

and the log management module 7 is used for managing interaction logs in the communication process of the intelligent fusion terminal and the intelligent power instrument, so that communication analysis and problem positioning are facilitated.

The data acquisition module 3 performs data communication with the intelligent electric power instrument through the serial port management module 2, analyzes the received data frame through the protocol analysis module 4, and writes the data into the data center 6 through the data refreshing module 5.

Correspondingly, the invention also provides a control method for the communication between the intelligent fusion terminal and the intelligent power instrument, which comprises the following steps:

the data acquisition module 3 performs data communication with the intelligent electric power instrument through the serial port management module 2, analyzes the received data frame through the protocol analysis module 4, writes the data into the data center through the data refreshing module 5, and processes and stores the data through the data center 6.

The configuration management module 1 configures communication point tables and data communication processing modes of various intelligent power meters communicated with the intelligent fusion terminal; the serial port management module 2 manages and configures an RS-485 serial port connected with the intelligent fusion terminal and the intelligent power instrument; the data acquisition module interactively acquires the numerical value of the intelligent electric power instrument through the RS-485 serial port and serial port management; the protocol analysis module 4 analyzes a message sent by the intelligent power instrument based on Modbus-RTU protocol, and extracts a data value contained in the message; the data refreshing module 5 adopts polling timing to refresh the collected data of the intelligent electric power instrument, so that the reliability of the data of the intelligent electric power instrument is ensured; the data center 6 processes and stores the acquired data of the intelligent electric power instrument through the technologies of edge calculation, virtualization, automatic management and the like, so that faster, safer and more flexible data processing and storage capacity is provided; the log management module 7 manages interaction logs in the communication process of the intelligent fusion terminal and the intelligent electric power instrument, and is convenient for communication analysis and problem positioning.

The distribution network is the last kilometer of the power grid connection user and is a key link for influencing the power supply service level. With the large number of accesses of facilities such as electric automobiles, distributed energy sources, micro-grids, energy storage devices and the like, the opening of the electric market and the appearance of various electricity consumption demands, higher requirements are put on the safety, the economy and the adaptability of a low-voltage distribution network. The intelligent integrated terminal of the distribution area fully considers the current situation and the development trend of the low-voltage distribution network, takes the design concept of hardware platformization and software APP (application) into account, and realizes the full data acquisition, full state sensing and full service penetration of the distribution area based on the distributed edge computing Internet of things technology. Services such as accurate management and control of information of low-voltage distribution electric equipment, lean operation and maintenance, power quality operation index analysis and the like are provided in an APP mode, regional energy management capability is improved, requirements of distributed energy access, diversified load management and control and the like are met, and flexible and rapid deployment of distribution network service is realized. By means of a platform region on-site decision making and cloud cooperative mechanism, the boosting low-voltage distribution network is changed from a passive management mode to an active management mode, and the precise management level of the platform region is improved.

In order to further popularize the data communication at the power distribution side and the deepened application of the fusion terminal, intelligent power instrument APP development is carried out on the edge computing operation system of the fusion terminal according to the proposed unified intelligent power instrument communication format protocol, so that the repeated development, management, maintenance and upgrading cost of the fusion terminal software is reduced, and the workload of management, operation and maintenance is reduced.

It should be noted that, in the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments, and do not indicate or imply that the apparatus or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (10)

1. The utility model provides a control system of intelligent integration terminal and intelligent electric power instrument communication which characterized in that contains:

the data acquisition module is used for acquiring a message sent by the intelligent electric power instrument through the RS-485 serial port;

the protocol analysis module is used for analyzing the message sent by the intelligent electric power instrument and collected by the data collection module based on a unified communication method between the intelligent fusion terminal and the intelligent electric power instrument, and extracting a data frame contained in the message;

and the data center is used for processing and storing the data frames in the message sent by the acquired intelligent electric power instrument.

2. The control system for the intelligent fusion terminal to communicate with the intelligent power meter according to claim 1, wherein the control system further comprises: and the serial port management module is used for managing and configuring the RS-485 serial port connected with the intelligent fusion terminal and the intelligent power instrument.

3. The control system for the intelligent fusion terminal to communicate with the intelligent power meter according to claim 1, wherein the control system further comprises: and the configuration management module is used for configuring communication point tables and data communication processing modes of various intelligent power meters communicated with the intelligent fusion terminal.

4. The control system for the intelligent fusion terminal to communicate with the intelligent power meter according to claim 1, wherein the control system further comprises: and the data refreshing module is used for refreshing the acquired data frames of the intelligent electric power instrument in a polling timing mode and sending the data frames to the data center.

5. The control system for the intelligent fusion terminal to communicate with the intelligent power meter according to claim 1, wherein the control system further comprises: and the log management module is used for managing interaction logs in the communication process of the intelligent fusion terminal and the intelligent power instrument.

6. The control system for communication between an intelligent fusion terminal and an intelligent power meter according to claim 1, wherein the control system is implemented based on an edge computing operating system of the intelligent fusion terminal.

7. A control method for communication between an intelligent fusion terminal and an intelligent power meter by using the control system for communication between the intelligent fusion terminal and the intelligent power meter according to any one of claims 1-6, wherein the data acquisition module is in data communication with the intelligent power meter through the serial port management module, analyzes the received data frame through the protocol analysis module, writes the data into the data center through the data refreshing module, and processes and stores the data by the data center.

8. The method for controlling communication between an intelligent fusion terminal and an intelligent power meter according to claim 7, wherein the configuration management module configures a communication point table and a data communication processing mode of various intelligent power meters in communication with the intelligent fusion terminal.

9. The method for controlling communication between an intelligent fusion terminal and an intelligent power meter according to claim 7, wherein the data refreshing module refreshes the collected data frames of the intelligent power meter in a polling timing mode and sends the data frames to the data center.

10. The method for controlling communication between an intelligent fusion terminal and an intelligent power meter according to claim 7, wherein the log management module manages interaction logs in the communication process of the intelligent fusion terminal and the intelligent power meter.