CN113341365B - Method, system and device for processing protocol layer data of intelligent electric energy meter - Google Patents
Method, system and device for processing protocol layer data of intelligent electric energy meter Download PDFInfo
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- 238000012545 processing Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000013507 mapping Methods 0.000 claims abstract description 25
- 238000003672 processing method Methods 0.000 claims abstract description 14
- 238000004458 analytical method Methods 0.000 claims abstract description 13
- 238000009432 framing Methods 0.000 claims description 15
- 238000013506 data mapping Methods 0.000 claims description 11
- 238000007405 data analysis Methods 0.000 claims description 8
- 238000013075 data extraction Methods 0.000 claims description 5
- 238000012512 characterization method Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000013499 data model Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
Abstract
The invention belongs to the field of power equipment, and particularly relates to a method, a system and a device for processing protocol layer data of an intelligent electric energy meter. The processing method comprises the following steps: step 1: creating two storage units for storing application protocol layer data, namely a first storage unit and a second storage unit; step 2: acquiring complete data in an application protocol layer of the intelligent electric energy meter; step 3: and establishing a plurality of nodes in the first storage unit, wherein the content of each node is used for representing the mapping relation between each node and each data point in the second storage unit. Step 4: judging whether the mapping relation is completely established; if yes, go to step 5, otherwise continue to carry out step 3. Step 5: and inquiring the nodes stored in the first storage unit according to the data types required to be acquired, and extracting corresponding data. The invention can solve the problems of low processing efficiency, high memory expense and insufficient adaptability to the electric energy meter of the existing electric energy meter fault analysis tool.
Description
Technical Field
The invention belongs to the field of power equipment, and particularly relates to a method, a system and a device for processing protocol layer data of an intelligent electric energy meter.
Background
When the existing intelligent electric energy meter fails in the operation process, data of an application protocol layer of the intelligent electric energy meter needs to be acquired, and a foundation is laid for analysis and processing of the failure. Taking the processing of three-phase fault line faults as an example, the existing fault analysis tool mainly realizes the data carrying by completely copying the data in the intelligent electric energy meter, and meanwhile, the data structure and the data conversion between the structures and the condition that an algorithm depends on the structure or the survival of a data model are indispensable in the process of analyzing the data. Meanwhile, the conventional data processing method also depends on the structure of a data model, so that the problem of insufficient compatibility can also exist in different types of intelligent electric energy meters.
Disclosure of Invention
The invention provides a method, a system and a device for processing protocol layer data of an intelligent electric energy meter, aiming at solving the problems of low processing efficiency, high memory overhead and insufficient adaptability to the electric energy meter existing in the process of analyzing the protocol layer data by the conventional intelligent electric energy meter fault analysis tool.
The invention is realized by adopting the following technical scheme:
a processing method of intelligent ammeter protocol layer data comprises the following steps:
step 1: creating two storage units for storing application protocol layer data, namely a first storage unit and a second storage unit; the first storage unit is used for directly storing the data acquired from the link layer; the second storage unit is used for storing a complete data packet when the data stored in the first storage unit belongs to the complete data packet.
Step 2: and acquiring complete data in an application protocol layer of the intelligent electric energy meter, storing the complete data in a second storage unit, analyzing the acquired data in the application protocol layer, further completing decoding of a service support layer, and storing the service type and the number of objects of the service type acquired from the service support layer.
Step 3: after the service support layer analysis is completed, traversing all data segments in the second storage unit, and then sequentially establishing a plurality of nodes in the first storage unit, wherein the content of each node is used for representing the mapping relation between each node and each data point in the second storage unit.
Step 4: after the mapping relation between each data point and the node in each data segment is established, judging whether all data in the second storage unit has completely established the mapping relation according to the integrity of the acquired data or the number of the acquired objects of the service type, if so, entering a step 5, otherwise, continuing to execute the step 3.
Step 5: after the processing of step 4 is completed, all the data in the second storage unit are searched for nodes stored in the first storage unit according to the data types required to be acquired, corresponding data are extracted, and the processing process of the related data of the intelligent electric energy meter protocol layer is completed.
Further, in step 1, the sizes of the created first storage unit and second storage unit are determined according to the size of the data amount in the application protocol layer of the intelligent electric energy meter.
Further, in step 2, the data acquisition process of the application protocol layer sequentially includes CRC check, length judgment, control code judgment, framing judgment, and data splicing; the framing data is received and stored after sequentially passing through CRC check, length judgment and control code judgment; after the framing data is determined to be completely received after the framing judgment, the framing data are assembled to obtain complete application protocol data.
Further, in step 3, the method for establishing each node representing the mapping relationship between each node in the first storage unit and each data point in the second storage unit is as follows: taking the length of 8 bytes as one node, and storing each node representing the mapping relation in a first storage unit; the content stored in each node is in turn as follows: (1) Offset of the node of the previous stage corresponding to the current data point in the first storage unit; (2) an offset of the current data point in the first memory location; (3) an offset of the current data point in the second memory location; (4) a data type of the current data point; (5) The number of the current data point in the corresponding previous level data point.
Further, in step 4, when all data points in a segment of data have completed the node establishment of the mapping relationship, the node representing the end of the segment of data is stored after the node corresponding to the last data point.
Further, in step 4, the method for judging whether the data is processed according to the number of the obtained objects of the service type is as follows: the number of the objects of the current service type is obtained, the number of the objects of the service type is assigned to a variable, and then the variable is subtracted by 1 after each node for storing the end of one characterization data segment until the variable is equal to 1.
The invention also comprises a processing system of the intelligent electric energy meter protocol layer data, and the system adopts the processing method of the intelligent electric energy meter protocol layer data to realize the processing of the data in the intelligent electric energy meter protocol layer; the processing system comprises: the device comprises a storage unit distribution module, a data acquisition module, a data analysis module, a data mapping module and a data extraction module.
The storage unit distribution module is used for creating two storage units for storing application protocol layer data in a memory space of the intelligent electric energy meter, wherein the two storage units are a first storage unit and a second storage unit respectively, and the first storage unit is used for directly storing the data acquired from the link layer; the second storage unit is used for storing a complete data packet when the data stored in the first storage unit belongs to the complete data packet.
The data acquisition module is used for acquiring complete data in an application protocol layer of the intelligent electric energy meter and storing the complete data in the second storage unit.
The data analysis module is used for analyzing the data in the application protocol layer, further finishing decoding of the service support layer, and storing the service types and the number of objects of the service types obtained from the service support layer.
And the data mapping module is used for establishing a plurality of nodes in the first storage unit so as to realize that each data point in the second storage unit can establish a mapping relation with a certain node in the first storage unit.
The data extraction module is used for inquiring the content of the corresponding node from the first storage unit according to the data type to be processed, and further obtaining the corresponding complete data in the second storage unit.
Further, the contents stored in each node, which is established by the first storage unit and is mapped to the data point in the second storage unit, by the data mapping module are sequentially as follows: (1) Offset of the node of the previous stage corresponding to the current data point in the first storage unit; (2) an offset of the current data point in the first memory location; (3) an offset of the current data point in the second memory location; (4) a data type of the current data point; (5) The number of the current data point in the corresponding previous level data point.
Further, the data mapping module is further configured to establish a node indicating that the data segment ends in the first storage unit, where the node indicating that the data segment ends is established after all data points in each data segment have established corresponding nodes.
The invention also comprises a processing device of the intelligent electric energy meter protocol layer data, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of the processing method of the intelligent electric energy meter protocol layer data when executing the program.
The technical scheme provided by the invention has the following beneficial effects:
1. the processing method of the intelligent electric energy meter protocol layer data changes the traditional data analysis channel, avoids the operation of frequently copying related data into a memory space, directly ignores the protocol layer data analysis and conversion, and analyzes the data relationship and then extracts the data. In the scheme of the invention, the process of extracting the target data from the application protocol layer only undergoes one copy and one data conversion, so that the execution efficiency of data analysis processing is improved.
2. The processing method provided by the invention does not depend on a data model, so that the processing method has the characteristics of universal applicability and high portability; the method can be suitable for data processing of all types of electric energy meter protocol layers. When the method is applied to the intelligent ammeter fault analysis tool, a protocol layer developer does not need to know a data model and a data structure, and only the database end developer is required to extract data, so that the protocol layer developer is liberated, and the development efficiency is improved.
Drawings
Fig. 1 is a flowchart of a processing method of intelligent ammeter protocol layer data in embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a partial partition of the data point map in example 1 of the present invention;
fig. 3 is a schematic block diagram of a processing system for data of a protocol layer of an intelligent ammeter according to embodiment 2 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the present embodiment provides a method for processing protocol layer data of an intelligent ammeter, where the method includes the following steps:
step 1: creating two storage units for storing application protocol layer data, namely a first storage unit and a second storage unit; the first storage unit is used for directly storing the data acquired from the link layer; the second storage unit is used for storing a complete data packet when the data stored in the first storage unit belongs to the complete data packet. The sizes of the first storage unit and the second storage unit are determined according to the size of the data volume in the application protocol layer of the intelligent electric energy meter.
In a specific embodiment, the two created storage units may be allocated in a storage space of the memory of the intelligent electric energy meter, or may be created in an external storage module. The former is adopted in the embodiment, and a structural body in the C language is adopted to define data stored in a first storage unit and a second storage unit, wherein the data in the first storage unit is defined as SEND_BUFF, and the data in the second storage unit is defined as APDU_BUFF;
step 2: and acquiring complete data in an application protocol layer of the intelligent electric energy meter, storing the complete data in a second storage unit, analyzing the acquired data in the application protocol layer, further completing decoding of a service support layer, and storing the service type and the number of objects of the service type acquired from the service support layer.
In detail, the data acquisition process of the application protocol layer sequentially comprises CRC check, length judgment, control code judgment, framing judgment and data packaging; the framing data is received and stored after sequentially passing through CRC check, length judgment and control code judgment; after the framing data is determined to be completely received after the framing judgment, the framing data are assembled to obtain complete application protocol data.
Step 3: after the service support layer analysis is completed, traversing all data segments in the second storage unit, and then sequentially establishing a plurality of nodes in the first storage unit, wherein the content of each node is used for representing the mapping relation between each node and each data point in the second storage unit.
The method for establishing each node representing the mapping relation between each characterization in the first storage unit and the data points in the second storage unit comprises the following steps: taking the length of 8 bytes as a node, and storing each node representing the mapping relation in the SEND_BUFF; the content stored in each node is in turn as follows: (1) Offset of the node of the upper level corresponding to the current data point in the send_buff; (2) an offset of the current data point in send_buff; (3) an offset of the current data point in apdu_buff; (4) a data type of the current data point; (5) The number of the current data point in the corresponding previous level data point.
Specifically, the procedure of the mapping process is expressed as follows:
when all data points in one piece of data are established by the nodes with the mapping relation, the node representing the end of the data segment is stored behind the node corresponding to the last data point.
In general, the send_buff is an integer multiple of 8, when the length of the send_buff is 512 bytes, 63 nodes can be saved, the last node is used for ending the nodes, the size of the send_buff can be customized according to the situation in most cases, and meanwhile, the method also analyzes the situation when the length of the send_buff is insufficient.
Step 4: after the mapping relation between each data point and the node in each data segment is established, judging whether all data in the second storage unit has completely established the mapping relation according to the integrity of the acquired data or the number of the acquired objects of the service type, if so, entering a step 5, otherwise, continuing to execute the step 3.
In this embodiment, the method for determining whether the data is processed according to the number of the acquired objects of the service type is as follows: the number of the objects of the current service type is obtained, the number of the objects of the service type is assigned to a variable, and then the variable is subtracted by 1 after each node for storing the end of one characterization data segment until the variable is equal to 1.
When it is determined whether the data segment in the apdu_buff is processed or not according to the number of objects, the subscript of the apdu_buff at this time needs to be recorded. Fig. 2 shows a schematic diagram of a partial partition of the data point map in this embodiment.
Step 5: after the step 4 is finished, all the data in the second storage unit are processed, according to the data types required to be acquired, the nodes stored in the first storage unit are queried, corresponding data are extracted, and the processing process of the intelligent electric energy meter protocol layer data is completed.
In this example, when the data in the apdu_buff is extracted from the nodes in the send_buff, if all the data are not acquired, the data of the nodes not acquired are stored in the send_buff in the form of the nodes which characterize the mapping relationship in the same way.
Example 2
The embodiment also provides a processing system of the intelligent electric energy meter protocol layer data, which adopts the processing method of the intelligent electric energy meter protocol layer data as in the embodiment 1 to realize the processing of the data in the intelligent electric energy meter protocol layer; in practical application, the processing system can be used as a data processing system in an analysis tool for performing fault analysis on the intelligent electric energy meter, and further the processing system is utilized to complete the extraction process of various target data in the fault analysis process of the intelligent electric energy meter.
As shown in fig. 3, the processing system in the present embodiment includes: the device comprises a storage unit distribution module, a data acquisition module, a data analysis module, a data mapping module and a data extraction module.
The storage unit distribution module is used for creating two storage units for storing application protocol layer data in a memory space of the intelligent electric energy meter, wherein the two storage units are a first storage unit and a second storage unit respectively, and the first storage unit is used for directly storing the data acquired from the link layer; the second storage unit is used for storing a complete data packet when the data stored in the first storage unit belongs to the complete data packet.
The data acquisition module is used for acquiring complete data in an application protocol layer of the intelligent electric energy meter and storing the complete data in the second storage unit.
The data analysis module is used for analyzing the data in the application protocol layer, further finishing decoding of the service support layer, and storing the service types and the number of objects of the service types obtained from the service support layer.
And the data mapping module is used for establishing a plurality of nodes in the first storage unit so as to realize that each data point in the second storage unit can establish a mapping relation with a certain node in the first storage unit.
The data extraction module is used for extracting the data of the corresponding node from the first storage unit according to the data type to be processed, further obtaining the corresponding complete data in the second storage unit, and the corresponding data can be sent to other functional modules needing the data, such as a fault analysis module needing related data to perform fault analysis on the intelligent electric energy meter.
In this embodiment, the contents stored in the nodes, which are created by the first storage unit and are mapped to the data points in the second storage unit, by the data mapping module are sequentially as follows: (1) Offset of the node of the previous stage corresponding to the current data point in the first storage unit; (2) an offset of the current data point in the first memory location; (3) an offset of the current data point in the second memory location; (4) a data type of the current data point; (5) The number of the current data point in the corresponding previous level data point.
In this embodiment, the data mapping module is further configured to establish a node indicating that the data segment ends in the first storage unit, where the node indicating that the data segment ends is established after all data points in each data segment have established corresponding nodes.
Example 3
The present embodiment provides a processing device for intelligent ammeter protocol layer data, the processing device including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the processing method for intelligent ammeter protocol layer data as in embodiment 1 when executing the program.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A processing method of intelligent ammeter protocol layer data is characterized in that: the processing method comprises the following steps:
step 1: creating two storage units for storing application protocol layer data, namely a first storage unit and a second storage unit; the first storage unit is used for directly storing the data acquired from the link layer; the second storage unit is used for storing a complete data packet when the data stored in the first storage unit belongs to the complete data packet;
step 2: acquiring complete data in an application protocol layer of the intelligent electric energy meter, storing the complete data in the second storage unit, analyzing the acquired data in the application protocol layer, further completing decoding of a service support layer, and storing service types and the number of objects of the service types acquired from the service support layer;
step 3: after the service support layer analysis is completed, traversing all data segments in the second storage unit, and then sequentially establishing a plurality of nodes in the first storage unit, wherein the content of each node is used for representing the mapping relation between each node and each data point in the second storage unit;
step 4: after the mapping relation between each data point in one data segment and the node is established, judging whether all data in the second storage unit has completely established the mapping relation according to the acquired data integrity or the acquired number of objects of the service type, if so, entering a step 5, otherwise, continuing to execute the step 3;
step 5: after all the data in the second storage unit are processed in the step 4, according to the data types acquired as required, the nodes stored in the first storage unit are queried, and then the corresponding data are extracted, so that the processing process of the data related to the intelligent electric energy meter protocol layer is completed.
2. The method for processing the protocol layer data of the intelligent ammeter according to claim 1, wherein the method comprises the following steps: in step 1, the sizes of the first storage unit and the second storage unit are determined according to the size of the data volume in the application protocol layer of the intelligent electric energy meter.
3. The method for processing the protocol layer data of the intelligent ammeter according to claim 1, wherein the method comprises the following steps: in step 2, the data acquisition process of the application protocol layer sequentially comprises CRC check, length judgment, control code judgment, framing judgment and data packaging; the framing data sequentially passes through the CRC check, the length judgment and the control code judgment and then is received and stored; and after the framing data is determined to be completely received after the framing judgment, the framing data are spliced to obtain complete application protocol data.
4. The method for processing the protocol layer data of the intelligent ammeter according to claim 1, wherein the method comprises the following steps: in step 3, the method for establishing each node representing the mapping relationship between each node in the first storage unit and each data point in the second storage unit is as follows: taking the length of 8 bytes as one node, and storing each node representing the mapping relation in a first storage unit; the content stored in each node is in turn as follows: (1) Offset of the node of the previous stage corresponding to the current data point in the first storage unit; (2) an offset of the current data point in the first memory location; (3) an offset of the current data point in the second memory location; (4) a data type of the current data point; (5) The number of the current data point in the corresponding previous level data point.
5. The method for processing the protocol layer data of the intelligent ammeter according to claim 4, wherein the method comprises the following steps: in step 4, when all data points in a segment of data have completed the node establishment of the mapping relationship, the node representing the end of the data segment is stored after the node corresponding to the last data point.
6. The method for processing the protocol layer data of the intelligent ammeter according to claim 1, wherein the method comprises the following steps: in step 4, the method for judging whether the data is processed according to the acquired number of the objects of the service type is as follows: and obtaining the number of the objects of the current service type, assigning the number of the objects of the service type to a variable, and subtracting 1 from the variable after each node for storing the end of one characterization data segment until the variable is equal to 1.
7. The utility model provides a processing system of intelligent ammeter protocol layer data which characterized in that: the system adopts the method for processing the data of the protocol layer of the intelligent electric energy meter according to any one of claims 1 to 6 to realize the processing of the data in the protocol layer of the intelligent electric energy meter; the processing system includes:
the storage unit distribution module is used for creating two storage units for storing application protocol layer data in a memory space of the intelligent electric energy meter, wherein the two storage units are a first storage unit and a second storage unit respectively, and the first storage unit is used for directly storing the data acquired from the link layer; the second storage unit is used for storing a complete data packet when the data stored in the first storage unit belongs to the complete data packet;
the data acquisition module is used for acquiring complete data in an application protocol layer of the intelligent electric energy meter and storing the complete data in the second storage unit;
the data analysis module is used for analyzing the data in the application protocol layer, further finishing decoding of the service support layer and storing the service type and the number of objects of the service type acquired from the service support layer;
the data mapping module is used for establishing a plurality of nodes in the first storage unit so as to establish a mapping relation between each data point in the second storage unit and a certain node in the first storage unit; and
the data extraction module is used for inquiring the data of the corresponding node from the first storage unit according to the data type to be processed, and further obtaining the corresponding complete data in the second storage unit.
8. The intelligent ammeter protocol layer data processing system as in claim 7, wherein: the data mapping module sequentially stores the following contents in each node which is established by the first storage unit and is mapped with the data points in the second storage unit: (1) Offset of the node of the previous stage corresponding to the current data point in the first storage unit; (2) an offset of the current data point in the first memory location; (3) an offset of the current data point in the second memory location; (4) a data type of the current data point; (5) The number of the current data point in the corresponding previous level data point.
9. The intelligent ammeter protocol layer data processing system as in claim 8, wherein: the data mapping module is further configured to establish a node for characterizing the end of the data segment in the first storage unit, where the node for characterizing the end of the data segment is established after all data points in each data segment have established corresponding nodes.
10. A processing device for intelligent ammeter protocol layer data, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the processing method for intelligent ammeter protocol layer data according to any one of claims 1 to 6 when executing the program.
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