CN111147510A - Data acquisition system and method based on SOA reflection factory architecture - Google Patents
Data acquisition system and method based on SOA reflection factory architecture Download PDFInfo
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Abstract
The invention discloses a data acquisition system based on SOA reflection factory architecture.A communication link management module extracts the same characteristics and different characteristics of various communication links and establishes an acquisition communication link; the device protocol management module extracts the same part and different parts of the acquisition protocols in various acquisition devices and encapsulates a device protocol library; when the acquisition software is started, a communication link is established according to the configuration file and the acquisition communication link, and an equipment protocol analysis library is loaded according to the configuration file. The invention also discloses a data acquisition method based on the SOA reflection factory architecture. According to the data acquisition system and method based on the SOA reflection factory architecture, after the acquisition communication link and the equipment protocol library are reconstructed, the data acquisition system and method can be compatible with all known link types and protocols, and a separate acquisition program does not need to be developed when new equipment is faced, so that the use efficiency is greatly improved, and the cost of manpower and material resources is reduced.
Description
Technical Field
The invention relates to the technology of industrial bus communication protocol conversion and industrial field device data acquisition, in particular to a data acquisition system and a data acquisition method based on SOA reflection factory architecture.
Background
Along with the deep integration of industrialization and informatization, the demand for interconnection and intercommunication of a production control system and a production management system inside and among enterprises is gradually increased, the demand for improving the product quality and the operation efficiency by accessing equipment into a network is stronger, and the industrial internet of things is produced at the same time. The industrial Internet of things changes each link and equipment in the production process into a data terminal, bottom basic data are collected in an all-dimensional mode, and data analysis and mining of deeper layers are carried out, so that efficiency is improved, and operation is optimized.
In the process of industrial implementation of data acquisition, protocols of different PLCs and different control systems need to be analyzed, generally, hardware interfaces of devices of different manufacturers, protocols for outputting data externally and receiving data are different, and a large amount of manpower and material resources need to be consumed for realizing the analysis of one protocol independently, so that an enterprise faces some problems in the data acquisition process, and particularly for enterprises with various types of devices: the more the types of equipment are, the higher the data acquisition cost and difficulty is, the correlation is increased linearly, the different protocol standards of various field buses and the diversity and the incompatibility of bus protocols greatly reduce the interconnection and the interoperability among control networks of different buses.
At present, RS-232, RS-485 and Ethernet are commonly used as communication interfaces adopted by industrial field devices, and data acquisition of the devices is difficult to perform due to the fact that protocols of various communication structures are incompatible and data protocols of the field devices are different. And the current common modes comprise 2 types: (1) the protocol converter can basically only complete point-to-point conversion, i.e. the data sent by the bus device 1 in the gateway is unpacked layer by layer from bottom to top according to the bus protocol 1 to obtain the user data therein. Reverse data transmission, and the same way; (2) different types of devices develop separate acquisition programs. For the above data acquisition methods, each device needs to consume a large amount of manpower and material resources.
Disclosure of Invention
The technical problem to be solved by the invention is that industrial field devices are various and different in data communication protocol, which brings great inconvenience to acquisition and implementation, and the invention aims to provide a data acquisition system and a method based on SOA reflection factory architecture, so as to solve the problems.
The invention is realized by the following technical scheme:
a data acquisition system based on SOA reflection factory architecture comprises a communication link management module and a device protocol management module;
the communication link management module extracts the same characteristics and different characteristics of various communication links and establishes a communication basic framework according to the same characteristics; the communication link management module also establishes a plurality of different communication links according to the different characteristics; the communication link management module establishes acquisition communication links between acquisition software and acquisition equipment according to the communication basic framework and the plurality of different communication links;
the device protocol management module extracts the same part and different parts of acquisition protocols in various acquisition devices and establishes a protocol library basic framework according to the same part; the equipment protocol management module also establishes a protocol library extension part according to the different parts; the equipment protocol management module encapsulates an equipment protocol library according to the protocol library basic framework and the protocol library extension part;
when the acquisition software is started, a communication link is established according to the configuration file and the acquisition communication link, and an equipment protocol analysis library is loaded according to the configuration file.
When the invention is applied, the existing equipment such as Siemens PLC, Beifu PLC, Sendai CNC and the like all have own set of communication protocols, if the program is modified aiming at each equipment, the problem of huge cost is brought, and the difficulty and the period of project configuration are increased. In the invention, to integrate the protocol, the problem of physical link compatibility is solved firstly, therefore, the invention adopts a mode of extracting the same characteristics and different characteristics of a plurality of communication links to establish a collection communication link with extremely strong compatibility, and the collection communication link of the invention is provided with a communication basic frame and a plurality of different communication links; the communication basic framework is characterized by the commonalities of various communication links, the basic framework is formed by abstracting the commonalities of the links, and a plurality of different communication links are formed by the characteristics of the various communication links on the basis of the basic framework. The link structure has excellent compatibility, can integrate new communication links at any time, and has good expansibility.
On the basis of collecting the communication link, the invention integrates different protocols, and finds out the same points and different points of the protocols according to the condition that various devices collect the protocols. The same points of the protocols are used as a basic framework for acquiring the protocol library, all the protocols are required to be established on the basis of the protocol, different points are used as an extension part of the protocol library, and the attribute and the method of the basic framework are rewritten or extended after the type of equipment is selected; for example, the Modbus protocol and the Siemens S7PLC protocol acquire data of a device storage space in a functional code + addressing mode, which is the direct commonality of the protocols.
According to the invention, after the acquisition communication link and the equipment protocol library are reconstructed, the method is compatible with all known link types and protocols, and a separate acquisition program is not required to be developed when a new device is faced, so that the use efficiency is greatly improved, and the cost of manpower and material resources is reduced. The invention adopts SOA architecture, and separates different functional units (called services) of the application program. And developing a bottom layer framework of a standard communication protocol by analyzing common industrial communication protocols such as Modbus, OPC, Siemens PLC, FANUC and the like. In practical application, the data acquisition driver of the device is developed based on a bottom framework, acquired data are converted into a uniform data format and uploaded to a data processing program. Different communication equipment drivers are configured, so that the same acquisition program can be connected with different field equipment, required data can be acquired or corresponding instructions can be issued, interconnection and intercommunication of the field equipment can be realized, and data acquisition can be carried out.
Further, the multiple communication links include a serial port, a TCP port, and a UDP port.
Further, the device protocol library comprises an external interface; and when the acquisition equipment analyzes the communication data through the protocol of the equipment protocol library, the acquisition equipment points to the newly created object through the external interface.
When the invention is applied, because the protocol library is developed by adopting a factory mode, the creation logic is not exposed to the client when the protocol analysis object is created, and the newly created object is pointed by using a common interface. Except for common attributes and methods, no extra correlation exists among all protocols, so that the newly appeared protocols can be used only by being designed according to a uniform parameter interface and then packaged, and the expansibility of a protocol library is well guaranteed.
Further, when adding protocols to the device protocol library, the device protocol management module extracts a newly added same part and a newly added different part of a newly added acquisition protocol and the device protocol library, and establishes a protocol library base frame according to the newly added same part; the equipment protocol management module also establishes a protocol library extension part according to the newly added different part; and the equipment protocol management module encapsulates the equipment protocol library according to the protocol library basic framework and the protocol library extension part.
Further, the device protocol library generates a DLL library file; and when the communication data is analyzed through the protocol of the equipment protocol library, calling the DLL library file through a reflection mechanism.
A data acquisition method based on SOA reflection factory architecture comprises the following steps:
s1: extracting the same characteristics and different characteristics of a plurality of communication links, and establishing a communication basic framework according to the same characteristics; establishing a plurality of different communication links according to the different characteristics; establishing acquisition communication links between acquisition software and acquisition equipment according to the communication basic framework and the plurality of different communication links;
s2: extracting the same part and different parts of the acquisition protocols in various acquisition devices, and establishing a protocol library basic framework according to the same part; establishing a protocol library extension part according to the different parts; encapsulating the equipment protocol library according to the protocol library basic framework and the protocol library extension part;
s3: when the acquisition software is started, a communication link is established according to the configuration file and the acquisition communication link, and an equipment protocol analysis library is loaded according to the configuration file.
Further, the multiple communication links include a serial port, a TCP port, and a UDP port.
Further, the device protocol library comprises an external interface; step S3 includes the following substeps:
and when the acquisition equipment analyzes the communication data through the protocol of the equipment protocol library, the acquisition equipment points to the newly created object through the external interface.
Further, the method also comprises the following steps:
s4: when adding protocols to the equipment protocol library, extracting newly-added same parts and newly-added different parts of newly-added acquisition protocols and the equipment protocol library, and establishing a protocol library basic frame according to the newly-added same parts; establishing a protocol library extension part according to the newly added different part; and encapsulating the equipment protocol library according to the protocol library basic framework and the protocol library extension part.
Further, the device protocol library generates a DLL library file; step S3 includes the further sub-steps of:
and when the communication data is analyzed through the protocol of the equipment protocol library, calling the DLL library file through a reflection mechanism.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the data acquisition system and method based on the SOA reflection factory architecture, after the acquisition communication link and the equipment protocol library are reconstructed, the data acquisition system and method can be compatible with all known link types and protocols, and a separate acquisition program does not need to be developed when new equipment is faced, so that the use efficiency is greatly improved, and the cost of manpower and material resources is reduced;
2. the invention relates to a data acquisition system and a data acquisition method based on an SOA reflection factory architecture, wherein the SOA architecture splits different functional units (called services) of an application program. And developing a bottom layer framework of a standard communication protocol by analyzing common industrial communication protocols such as Modbus, OPC, Siemens PLC, FANUC and the like. In practical application, the data acquisition driver of the device is developed based on a bottom framework, acquired data are converted into a uniform data format and uploaded to a data processing program. Different communication equipment drivers are configured, so that the same acquisition program can be connected with different field equipment, required data can be acquired or corresponding instructions can be issued, interconnection and intercommunication of the field equipment can be realized, and data acquisition can be carried out.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of a communication link structure according to the present invention;
FIG. 2 is a diagram of a protocol library architecture according to the present invention;
FIG. 3 is a diagram illustrating protocol integration according to the present invention;
FIG. 4 is a schematic view of the overall process of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1 to 4, the data acquisition system based on the SOA reflection factory architecture of the present invention includes a communication link management module and an equipment protocol management module;
the communication link management module extracts the same characteristics and different characteristics of various communication links and establishes a communication basic framework according to the same characteristics; the communication link management module also establishes a plurality of different communication links according to the different characteristics; the communication link management module establishes acquisition communication links between acquisition software and acquisition equipment according to the communication basic framework and the plurality of different communication links;
the device protocol management module extracts the same part and different parts of acquisition protocols in various acquisition devices and establishes a protocol library basic framework according to the same part; the equipment protocol management module also establishes a protocol library extension part according to the different parts; the equipment protocol management module encapsulates an equipment protocol library according to the protocol library basic framework and the protocol library extension part;
when the acquisition software is started, a communication link is established according to the configuration file and the acquisition communication link, and an equipment protocol analysis library is loaded according to the configuration file.
In the implementation of this embodiment, to integrate the protocol, the problem of physical link compatibility is solved first, so the present invention adopts a manner of extracting the same features and different features of multiple communication links to establish a collection communication link with strong compatibility, and the collection communication link of the present invention has a communication infrastructure and multiple different communication links; the communication basic framework is characterized by the commonalities of various communication links, the basic framework is formed by abstracting the commonalities of the links, and a plurality of different communication links are formed by the characteristics of the various communication links on the basis of the basic framework. The link structure has excellent compatibility, can integrate new communication links at any time, and has good expansibility.
On the basis of collecting the communication link, the invention integrates different protocols, and finds out the same points and different points of the protocols according to the condition that various devices collect the protocols. The same points of the protocols are used as a basic framework for acquiring the protocol library, all the protocols are required to be established on the basis of the protocol, different points are used as an extension part of the protocol library, and the attribute and the method of the basic framework are rewritten or extended after the type of equipment is selected; for example, the Modbus protocol and the Siemens S7PLC protocol acquire data of a device storage space in a functional code + addressing mode, which is the direct commonality of the protocols.
In the embodiment, after the acquisition communication link and the equipment protocol library are reconstructed, the method and the system are compatible with all known link types and protocols, and a separate acquisition program is not required to be developed when new equipment is faced, so that the use efficiency is greatly improved, and the cost of manpower and material resources is reduced. The invention adopts SOA architecture, and separates different functional units (called services) of the application program. And developing a bottom layer framework of a standard communication protocol by analyzing common industrial communication protocols such as Modbus, Siemens PLC, FANUC and the like. In practical application, the data acquisition driver of the device is developed based on a bottom framework, acquired data are converted into a uniform data format and uploaded to a data processing program. Different communication equipment drivers are configured, so that the same acquisition program can be connected with different field equipment, required data can be acquired or corresponding instructions can be issued, interconnection and intercommunication of the field equipment can be realized, and data acquisition can be carried out.
To further illustrate the working process of this embodiment, the multiple communication links include a serial port, a TCP port, and a UDP port.
For further explaining the working process of the embodiment, the device protocol library includes an external interface; and when the acquisition equipment analyzes the communication data through the protocol of the equipment protocol library, the acquisition equipment points to the newly created object through the external interface.
In the implementation of the embodiment, because the protocol library is developed in a factory mode, the creation logic is not exposed to the client when the protocol parsing object is created, and a common interface is used to point to the newly created object. Except for common attributes and methods, no extra correlation exists among all protocols, so that the newly appeared protocols can be used only by being designed according to a uniform parameter interface and then packaged, and the expansibility of a protocol library is well guaranteed.
To further illustrate the working process of this embodiment, when adding a protocol to the device protocol library, the device protocol management module extracts a newly added same portion and a newly added different portion of a newly added acquisition protocol and the device protocol library, and establishes a protocol library base frame according to the newly added same portion; the equipment protocol management module also establishes a protocol library extension part according to the newly added different part; and the equipment protocol management module encapsulates the equipment protocol library according to the protocol library basic framework and the protocol library extension part.
To further illustrate the operation of this embodiment, the device protocol library generates a DLL library file; and when the communication data is analyzed through the protocol of the equipment protocol library, calling the DLL library file through a reflection mechanism.
A data acquisition method based on SOA reflection factory architecture comprises the following steps:
s1: extracting the same characteristics and different characteristics of a plurality of communication links, and establishing a communication basic framework according to the same characteristics; establishing a plurality of different communication links according to the different characteristics; establishing acquisition communication links between acquisition software and acquisition equipment according to the communication basic framework and the plurality of different communication links;
s2: extracting the same part and different parts of the acquisition protocols in various acquisition devices, and establishing a protocol library basic framework according to the same part; establishing a protocol library extension part according to the different parts; encapsulating the equipment protocol library according to the protocol library basic framework and the protocol library extension part;
s3: when the acquisition software is started, a communication link is established according to the configuration file and the acquisition communication link, and an equipment protocol analysis library is loaded according to the configuration file.
To further illustrate the working process of this embodiment, the multiple communication links include a serial port, a TCP port, and a UDP port.
For further explaining the working process of the embodiment, the device protocol library includes an external interface; step S3 includes the following substeps:
and when the acquisition equipment analyzes the communication data through the protocol of the equipment protocol library, the acquisition equipment points to the newly created object through the external interface.
For further explaining the working process of the embodiment, the method further comprises the following steps:
s4: when adding protocols to the equipment protocol library, extracting newly-added same parts and newly-added different parts of newly-added acquisition protocols and the equipment protocol library, and establishing a protocol library basic frame according to the newly-added same parts; establishing a protocol library extension part according to the newly added different part; and encapsulating the equipment protocol library according to the protocol library basic framework and the protocol library extension part.
To further illustrate the operation of this embodiment, the device protocol library generates a DLL library file; step S3 includes the further sub-steps of:
and when the communication data is analyzed through the protocol of the equipment protocol library, calling the DLL library file through a reflection mechanism.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A data acquisition system based on SOA reflection factory architecture is characterized by comprising a communication link management module and a device protocol management module;
the communication link management module extracts the same characteristics and different characteristics of various communication links and establishes a communication basic framework according to the same characteristics; the communication link management module also establishes a plurality of different communication links according to the different characteristics; the communication link management module establishes acquisition communication links between acquisition software and acquisition equipment according to the communication basic framework and the plurality of different communication links;
the device protocol management module extracts the same part and different parts of acquisition protocols in various acquisition devices and establishes a protocol library basic framework according to the same part; the equipment protocol management module also establishes a protocol library extension part according to the different parts; the equipment protocol management module encapsulates an equipment protocol library according to the protocol library basic framework and the protocol library extension part;
when the acquisition software is started, a communication link is established according to the configuration file and the acquisition communication link, and an equipment protocol analysis library is loaded according to the configuration file.
2. The SOA reflection factory architecture-based data acquisition system as claimed in claim 1, wherein said plurality of communication links comprise serial ports, TCP ports and UDP ports.
3. The SOA reflection factory architecture-based data acquisition system of claim 1, wherein the device protocol library comprises external interfaces; and when the acquisition equipment analyzes the communication data through the protocol of the equipment protocol library, the acquisition equipment points to the newly created object through the external interface.
4. The SOA reflection factory architecture-based data acquisition system according to claim 1, wherein when adding protocols to the device protocol library, the device protocol management module extracts a newly added same part and a newly added different part of a newly added acquisition protocol and the device protocol library, and establishes a protocol library base frame according to the newly added same part; the equipment protocol management module also establishes a protocol library extension part according to the newly added different part; and the equipment protocol management module encapsulates the equipment protocol library according to the protocol library basic framework and the protocol library extension part.
5. The SOA reflection factory architecture based data acquisition system of claim 1 wherein the device protocol library generates a DLL library file; and when the communication data is analyzed through the protocol of the equipment protocol library, calling the DLL library file through a reflection mechanism.
6. A data acquisition method based on SOA reflection factory architecture is characterized by comprising the following steps:
s1: extracting the same characteristics and different characteristics of a plurality of communication links, and establishing a communication basic framework according to the same characteristics; establishing a plurality of different communication links according to the different characteristics; establishing acquisition communication links between acquisition software and acquisition equipment according to the communication basic framework and the plurality of different communication links;
s2: extracting the same part and different parts of the acquisition protocols in various acquisition devices, and establishing a protocol library basic framework according to the same part; establishing a protocol library extension part according to the different parts; encapsulating the equipment protocol library according to the protocol library basic framework and the protocol library extension part;
s3: when the acquisition software is started, a communication link is established according to the configuration file and the acquisition communication link, and an equipment protocol analysis library is loaded according to the configuration file.
7. The SOA reflection factory architecture-based data acquisition method according to claim 6, wherein the plurality of communication links comprise serial ports, TCP ports and UDP ports.
8. The SOA reflection factory architecture-based data acquisition method according to claim 6, wherein the device protocol library comprises external interfaces; step S3 includes the following substeps:
and when the acquisition equipment analyzes the communication data through the protocol of the equipment protocol library, the acquisition equipment points to the newly created object through the external interface.
9. The SOA reflection factory architecture-based data acquisition method according to claim 6, further comprising the steps of:
s4: when adding protocols to the equipment protocol library, extracting newly-added same parts and newly-added different parts of newly-added acquisition protocols and the equipment protocol library, and establishing a protocol library basic frame according to the newly-added same parts; establishing a protocol library extension part according to the newly added different part; and encapsulating the equipment protocol library according to the protocol library basic framework and the protocol library extension part.
10. The SOA reflection factory architecture-based data acquisition method according to claim 6, wherein the device protocol library generates a DLL library file; step S3 includes the further sub-steps of:
and when the communication data is analyzed through the protocol of the equipment protocol library, calling the DLL library file through a reflection mechanism.
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Application publication date: 20200512 |