CN110099049B - Communication protocol for information interaction between intelligent miniature circuit breaker and control center - Google Patents
Communication protocol for information interaction between intelligent miniature circuit breaker and control center Download PDFInfo
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- CN110099049B CN110099049B CN201910317543.9A CN201910317543A CN110099049B CN 110099049 B CN110099049 B CN 110099049B CN 201910317543 A CN201910317543 A CN 201910317543A CN 110099049 B CN110099049 B CN 110099049B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/03—Protocol definition or specification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
Abstract
The invention provides a communication protocol for information interaction between an intelligent miniature circuit breaker and a control center, which comprises a data structure, wherein the data structure comprises a frame header, an address, a control code, a data length, a command code, data content and a check sum; the control code comprises a frame type, wherein the frame type comprises an active heartbeat data type data frame, a reading data type data frame and a setting data type data frame; the active uploading heartbeat data frame is defined as a data frame actively sent by the circuit breaker and a data frame passively received by the control center and is used for actively uploading data when the data change so as to reduce the data query burden of the server; the reading data frame is used for acquiring a command related to reading data; and setting a data frame for setting the parameters and the control state of the circuit breaker. The invention can effectively reduce the transmitted data amount while timely acquiring the real-time intelligent micro-breaking state, so that the transmitted data is more economic and effective, the server burden is reduced, and the construction and operation cost is reduced.
Description
Technical Field
The invention belongs to the technical field of intelligent micro-break communication, and particularly relates to a communication protocol for information interaction between an intelligent micro-breaker and a control center.
Background
The intelligent micro-breaking communication function is that a network communication function is added on the basis of the existing micro circuit breaker, and the remote data acquisition, parameter setting, control state setting and the like can be realized through a control center (a master station). This requires a custom data transfer protocol in order to achieve efficient data exchange between the intelligent micro-interrupt and the control center.
Because the quantity of intelligence disconnected is many a little, powerful, the data volume of transmission can be more. In order to enable the control center to obtain the state of the intelligent micro-break in time, the state change or update of the intelligent micro-break obtained in real time needs to be known, and data transmission is more frequent. In the prior art, a large amount of redundant information, invalid information, repeated information and the like exist in the transmitted data. For example, many data may not change in a short time, but are frequently uploaded periodically, which results in waste of resources. In addition, in order to reduce the load on the control center server, it is necessary to reduce the workload for analyzing data.
Disclosure of Invention
The invention aims to provide a communication protocol for information interaction between an intelligent miniature circuit breaker and a control center, which can effectively reduce the transmitted data amount while timely acquiring a real-time intelligent miniature disconnection state, so that the transmitted data is more economic and effective, the server burden is reduced, and the construction and operation costs are reduced.
The invention provides a communication protocol for information interaction between an intelligent miniature circuit breaker and a control center, which comprises a data structure, wherein the data structure comprises a frame header, an address, a control code, a data length, a command code, data content and a check sum; the control code comprises a frame type, wherein the frame type comprises an active heartbeat data type data frame, a reading data type data frame and a setting data type data frame;
the active uploading heartbeat data frame is defined as a data frame actively sent by the circuit breaker and a data frame passively received by the control center and is used for actively uploading data when the data change so as to reduce the data query burden of the server;
the reading data frame is used for acquiring a command related to reading data;
and setting a data frame for setting the parameters and the control state of the circuit breaker.
Further, actively sending the heartbeat data type data frame comprises a basic heartbeat data type data frame and an extended heartbeat data type data frame, wherein the basic heartbeat data type data frame is used for sending basic data, including a command state and an actual state of the circuit breaker; and the expanded heartbeat data frame is used for uploading power grid real-time data and electric energy accumulated data.
Further, the commands related to the reading data obtained by reading the data frame comprise a plurality of commands in a breaker state command, an instantaneous value and accumulated electric energy data command corresponding to the breaker, a current voltage and current threshold value and triggering action command, a timer and triggering action command, a basic heartbeat sending time interval command, a breaker type related information command, a network parameter command and a breaker current random number command.
Further, the data frame is specifically configured to set a current voltage, a current threshold, a trigger action command, a timer, a trigger action command, a subordinate circuit breaker electric quantity cleaning command, a basic heartbeat sending time interval command, a network parameter command, and a circuit breaker state control command.
Compared with the prior art, the invention has the beneficial effects that:
the method can effectively reduce the transmitted data volume while timely acquiring the real-time intelligent micro-disconnection state, so that the transmitted data is more economical and effective, the server burden is reduced, and the construction and operation cost is reduced.
Drawings
Fig. 1 is a data structure of a communication protocol for information interaction between an intelligent miniature circuit breaker and a control center according to the present invention.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
Referring to fig. 1, the present embodiment provides a communication protocol for information interaction between an intelligent miniature circuit breaker and a control center, which includes a data structure, where the data structure includes a frame header 101, an address 102, a control code 103, a data length 104, a command code 105 (determined according to a frame type), a data content 106, and a checksum 107; the control code comprises a response mark 231, an error mark 232 and a frame type 233, wherein the frame type 233 comprises an active heartbeat data type data frame, a reading data type data frame and a setting data type data frame; the active uploading heartbeat data frame is defined as a data frame actively sent by the circuit breaker and a data frame passively received by the control center and is used for actively uploading data when the data change so as to reduce the data query burden of the server; the reading data frame is used for acquiring a command related to reading data; and setting a data frame for setting the parameters and the control state of the circuit breaker.
When the intelligent miniature circuit breaker is interacted with the control center, the intelligent miniature circuit breaker is conveniently interacted with the control center by adopting a uniform communication protocol format; the heartbeat data type data frame is actively sent upwards when the data changes, so that the data query burden of a server can be reduced; more data can be obtained by reading the data frame of the data class; parameters and control states can be set by setting a data frame. The data frame structure of the communication protocol is simple, complete data can be acquired with small data overhead, and the data interaction cost of the intelligent miniature circuit breaker and the control center is greatly reduced.
The data frame structure of (1) is simple, when the intelligent miniature circuit breaker is interacted with the control center, complete data can be acquired with smaller data overhead, and the data interaction cost of the intelligent miniature circuit breaker and the control center is greatly reduced.
In this embodiment, the active transmission of the heartbeat data type data frame includes a basic heartbeat data type data frame and an extended heartbeat data type data frame, and the basic heartbeat data type data frame is used for transmitting basic data including a command state and an actual state of the circuit breaker; and the expanded heartbeat data frame is used for uploading power grid real-time data and electric energy accumulated data.
In this embodiment, the commands related to the read data obtained by reading the data frame include a plurality of commands among a breaker state command, an instantaneous value and accumulated power data command corresponding to the breaker, a current voltage and current threshold and trigger action command, a timer and trigger action command, a basic heartbeat sending time interval command, a breaker type related information command, a network parameter command, and a breaker current random number command.
In this embodiment, the data frame is specifically configured to set a current voltage, a current threshold, a trigger action command, a timer, a trigger action command, a subordinate breaker power clearing command, a basic heartbeat sending time interval command, a network parameter command, and a breaker state control command.
The present invention is described in further detail below.
When the intelligent micro-interrupt interacts with the master station, a unified communication protocol format is adopted, and the data structure comprises the following components: frame header, address, control code, data length, command code, data content and checksum, wherein:
the header, 1 byte long, is the start identifier of the data frame, and is designated H or 68H hexadecimal.
The address, 1 byte in length, is the address of the data frame receiving apparatus and is generally fixed to 00H.
A control code, 1 byte length, is used to identify the type of the data frame.
The data length, 1-byte length, is used to indicate the content length +1 of the data content of the table, i.e., the length of the command code and the data content.
The command code, 1 byte in length, is used to indicate the function of the operation of the command.
The data content, 0-N bytes, is the data content corresponding to the description command code.
The checksum, 1 byte, is used to verify the correctness of the contents of the entire data frame.
In a data frame, the length and position of elements in other data frames are fixed except for the variable length of the data content. The entire data frame is encoded in HEX.
The checksum is calculated by summing all bytes of data from the frame header to the checksum, and taking the lower 8 bits (1 byte) beyond 0 xFF. That is, the calculated data content includes frame header, address, control code, data length, command code, and data content. See table 1.
Data frame example:
the overall data frame is as follows:
68H 00H 00H 21H 00H 30H 31H 32H 33H 34H 35H 36H 37H 38H 39H 30H 31H32H 33H 34H 35H 39H 38H 37H 36H 35H 34H 33H 32H 31H 30H 30H 31H 0000 00 00 33H
table 1 explanation of each part
The control code includes a response flag, an error flag, and a frame type. The response flag indicates whether the data frame is a response data frame, if so, the flag is 1, otherwise, the flag is 0. The error flag indicates whether the data frame is an error response, if the data frame is an error response data frame, the flag is 1, otherwise, the flag is 0. The frame types can be divided into 00H active heartbeat data frame, 10H reading data frame and 11H setting data frame according to actual conditions. The other 01H-0FH and 12H-3FH these are temporarily not used, do reserve use.
The control code length is 1 byte, and 8 bits are specifically defined in table 2.
TABLE 2 description of control codes
The 00H active heartbeat data frame sending is that the data is a data frame sent actively by intelligent micro-interrupt, and a data frame received passively by a control center. The basic heartbeat and the extended heartbeat can be divided according to different command codes.
Basic heartbeat refers to sending basic data, including command state, actual state and the like of intelligent micro-break. See table 3.
Table 3 example of command frame for control code 00H
The expanded heartbeat refers to the real-time data of the power grid such as voltage, current and power and the accumulated data of the current electric energy such as active electric energy. See table 3.
The 10H reading data frame comprises a command for acquiring a state of the circuit breaker, a command for acquiring instantaneous quantity and accumulated electric energy data of the corresponding circuit breaker, a command for acquiring current voltage, current threshold and triggering action, a command for acquiring a timer and triggering action, a command for acquiring a basic heartbeat uploading time interval, a command for acquiring information related to equipment types, a command for acquiring network parameters of a communication module, a command for acquiring current random numbers of equipment and the like. See table 4.
Table 4 example of command frame corresponding to control code 10H
And 11H, setting a data frame, including setting current voltage, current threshold values and trigger action commands, setting a timer and trigger action commands, setting subordinate circuit breaker electric quantity cleaning commands, setting basic heartbeat uploading time interval commands, setting communication module network parameter commands, setting circuit breaker state control commands and the like. See table 5.
Table 5 example of command frame corresponding to control code 11H
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (1)
1. The interaction method of the intelligent miniature circuit breaker and the control center is characterized in that when the intelligent miniature circuit breaker and the control center are interacted, a unified communication protocol is adopted, the communication protocol comprises a data structure, and the data structure comprises a frame header, an address, a control code, a data length, a command code, data content and a check sum; the control code comprises a frame type, wherein the frame type comprises an active heartbeat data type data frame, a reading data type data frame and a setting data type data frame;
the active uploading heartbeat data frame is defined as a data frame actively sent by the circuit breaker and a data frame passively received by the control center and is used for actively uploading data when the data changes so as to reduce the data query burden of the server; the active uploading heartbeat data type data frame comprises a basic heartbeat data type data frame and an extended heartbeat data type data frame, and the basic heartbeat data type data frame is used for uploading basic data comprising a command state and an actual state of the circuit breaker; the expanded heartbeat data frame is used for uploading power grid real-time data and electric energy accumulated data;
the reading data type data frame is used for acquiring a command related to reading data; the commands related to the reading data acquired by reading the data frame comprise a plurality of commands of a breaker state command, an instantaneous value and accumulated electric energy data command corresponding to the breaker, a current voltage and current threshold value and trigger action command, a timer and trigger action command, a basic heartbeat sending time interval command, a breaker type related information command, a network parameter command and a breaker current random number command;
the setting data type data frame is used for setting parameters and control states of the circuit breaker; the setting data frame is specifically used for setting current voltage and current threshold values and triggering action commands, timers and triggering action commands, setting various commands of subordinate breaker electric quantity cleaning commands, basic heartbeat sending time interval commands, network parameter commands and breaker state control commands.
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| CN112019524A (en) * | 2020-08-10 | 2020-12-01 | 优联三维打印科技发展(上海)有限公司 | Communication protocol structure of 3D printing cloud service, data packet processing method and system |
| CN113192233A (en) * | 2021-04-29 | 2021-07-30 | 北京车和家信息技术有限公司 | Data acquisition method, device, equipment and medium |
| CN113437998B (en) * | 2021-06-24 | 2022-11-04 | 国网北京市电力公司 | Operation and maintenance debugging method and system, nonvolatile storage medium and processor |
| CN113504774B (en) * | 2021-09-09 | 2021-12-24 | 卡斯柯信号(北京)有限公司 | Train control interlocking integration and dispatching centralized system interface data checking method and device |
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