CN110457250B - Embedded data acquisition processing terminal and data acquisition processing method - Google Patents
Embedded data acquisition processing terminal and data acquisition processing method Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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- G06F9/44—Arrangements for executing specific programs
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Abstract
The invention discloses an embedded data acquisition processing terminal and a data acquisition processing method using the same. The invention realizes the data acquisition and output in the form of plug-ins, the plug-ins are separately loaded and upgraded without mutual influence, the upgrade of single acquisition equipment or output types can be dynamically completed, the restart of a terminal and the interruption of a data processing process are not needed, and the efficiency of data acquisition and processing is effectively ensured.
Description
Technical Field
The invention relates to a multifunctional data terminal and a corresponding data processing method thereof, in particular to an embedded data acquisition processing terminal and a data acquisition processing method, and belongs to the technical field of industrial internet.
Background
In the field of industrial internet, data acquisition is the basis of all applications, and the core of the data acquisition is to acquire various data through various sensors or data acquisition equipment, collect the acquired data on a corresponding industrial data processing platform and perform various processing and analysis on the data.
Specifically, for device data accessed to the industrial internet, a common processing mode is that after a sensor obtains an analog signal, the analog signal is read by acquisition equipment in a digital format through AD conversion and then is processed; or after the data are collected by using input equipment such as PLC equipment and the like, the data are transmitted into the data collection terminal through communication modes such as Modbus, RS232 and the like, read and preprocessed by the data collection terminal, and finally transmitted to the industrial internet platform for storage, processing and analysis. In the development and implementation process of a traditional data acquisition terminal, developers generally implement a data structure and a parsing method in data acquisition software by using a C or C + + programming language, and the data structure and the parsing method are compiled and then solidified to run on equipment.
However, in actual operation, the skilled person finds that the above conventional operation method has the following two disadvantages. Firstly, because of a wide variety of data and rich application scenarios in the industrial internet, different sensors or data acquisition terminals are often used in different application scenarios, and the data acquisition process and the analysis method are different, the workload of code compiling is huge for developers. Secondly, in the current embedded development, the data structure and the analysis method are both required to be realized in the data acquisition software by using a C or C + + programming language, and when the software is realized to have problems or the data format and the communication protocol are updated, the processes of code modification, compiling, testing and curing are required to be performed once for the software modification and updating, so that the operation mode is obviously low in efficiency and easy to make mistakes.
It is expected that in the current industrial internet cloud platform, new types and new functions of devices are continuously accessed into the system, and if the traditional method of adapting to the operation mode of the devices by modifying codes is continuously used, the codes which need to be compiled by developers become more complex, the maintenance cost becomes higher, and the requirements of rapid development and promotion of the internet are difficult to adapt.
In summary, how to provide a brand-new data acquisition and processing terminal and a corresponding data acquisition and processing method based on the prior art, which reduces the workload of developers as much as possible, so as to correctly, quickly, flexibly and least expensively perform data acquisition and analysis processing on different sensors on the terminal, which is a problem to be urgently solved by technical personnel in the field.
Disclosure of Invention
In view of the above-mentioned defects in the prior art, the present invention provides an embedded data acquisition processing terminal and a data acquisition processing method, which are as follows.
An embedded data acquisition processing terminal, comprising:
the central processing unit is used for receiving the data from the acquisition equipment, processing and analyzing the data and then outputting the data;
the acquisition equipment connecting unit is externally connected with acquisition equipment, electrically connected with the central processing unit and used for transmitting data from the acquisition equipment to the central processing unit;
the broadband network connection unit is electrically connected with the central processing unit and is used for connecting the industrial internet platform and the output equipment, realizing data input of network equipment and part of acquisition equipment by virtue of a broadband network and transmitting the output of the central processing unit to the industrial internet platform and the output equipment;
the central processing unit is also electrically connected with a NAND flash memory and a dynamic random access memory, the terminal also comprises a power supply unit for supplying power to each part, and the power supply unit is electrically connected with the central processing unit and other units.
Preferably, the acquisition device connecting unit includes analog-to-digital converter and communication interface subassembly, the communication interface subassembly includes RS232 interface and RS485 interface, central processing unit with the help of the external wired analog sensor of analog-to-digital converter, with the help of the external PLC control system of RS232 interface and RS485 interface, the RS485 interface adopts the ModbusRTU protocol.
Preferably, the broadband network connection unit includes a WIFI module, a 3G/4G module, and an ethernet module.
Preferably, the central processor includes:
the main processing module is used for realizing the control of overall processing and scheduling of the terminal, connecting and scheduling other modules and finishing all data reading, processing output and plug-in management functions;
the plug-in module is used for storing and recording various plug-ins, and each plug-in comprises various functions for recording contents and serving as an interface;
the plug-in processing module is connected with the plug-in module and is used for defining a general plug-in format and an interface, managing the upgrade of the plug-in and searching and loading the plug-in according to the configuration;
the data input module is used for calling the acquisition equipment connection unit to read the data of the acquisition equipment, preprocessing the data and then sending the data;
the data processing module is used for acquiring the data from the data input module, performing general processing on the data and then transmitting the data;
and the data output module is used for receiving the data from the data processing module and calling the plug-in the plug-in module according to the configuration and the data source to output the data.
Preferably, a plurality of plug-ins are stored and recorded in the plug-in module, including:
the input plug-in set comprises a plurality of input plug-ins, is loaded and operated by the plug-in processing module in a dynamic loading mode, and reads and processes the acquired data from the acquisition equipment, and comprises an ADC input plug-in, an RS232 input plug-in, a ModbusRTU input plug-in, a ModbusTCP input plug-in and a UDP input plug-in;
the output plug-in unit comprises a plurality of output plug-in units, is loaded and operated by the plug-in unit processing module in a dynamic loading mode, and outputs processed data, and comprises a time sequence data output plug-in unit and a file uploading plug-in unit;
and the bidirectional plug-in unit comprises a plurality of bidirectional plug-in units, and the bidirectional plug-in units simultaneously have the functions of the input plug-in units and the output plug-in units.
Preferably, all the plug-ins in the plug-in module adopt a uniform format, and each plug-in includes the following contents and interfaces:
the plug-in name is used for identifying the plug-in;
the input equipment type is used for providing a basis for the plug-in processing module to search for an input plug-in;
the output data type is used for providing basis for the plug-in processing module to search the output plug-in;
the inlet function is used as a plug-in loading inlet, and the plug-in registers other functions in the plug-in, the input equipment type and the output data type through the inlet;
the opening function is used for opening the acquisition equipment and the output equipment;
and the closing function is used for closing the acquisition equipment and the output equipment.
Preferably, if the plug-in is an input plug-in, the plug-in further comprises a reading function for reading data from the acquisition device;
if the plug-in is an output plug-in, the plug-in also comprises a writing function for outputting data;
if the plug-in is a bidirectional plug-in, the plug-in simultaneously comprises a reading function and a writing function, and the plug-in also comprises a command function for modifying parameters of the plug-in, the acquisition equipment and the output equipment.
A data acquisition processing method, using the embedded data acquisition processing terminal, comprises the following steps:
s1, determining required acquisition equipment and output data types according to an application scene;
s2, completing installation of an operating system, tools and software on the embedded data acquisition processing terminal, loading corresponding input plugins, output plugins and bidirectional plugins into a specified plugin directory in a plugin module, and then configuring the plugins according to acquisition equipment and output data types;
and S3, running a data acquisition and processing process, reading plug-in configuration information by the main processing module and running other modules, and jointly matching the plug-in processing module, the data input module, the data processing module and the data output module to finish data acquisition, processing and output.
Preferably, S3 comprises the steps of:
s31, the plug-in processing module searches all plug-ins in a plug-in directory specified by the plug-ins, and then the plug-in processing module loads all the plug-ins one by one;
s32, the plug-in processing module completes plug-in registration through an entry function in the plug-in;
s33, the plug-in processing module runs the reading functions of all input plug-ins in a multithreading mode and reads data from the acquisition equipment;
s34, the plug-in sends the read data to a data processing module, and the data processing module carries out general processing on the data immediately;
s35, the data output module finds a corresponding output plug-in unit according to the configured data output type, calls a writing function of the output plug-in unit, processes data according to the output data type, and then the output plug-in unit sends the processed data to an industrial internet platform or output equipment;
and S36, repeating S34-S35 to complete the acquisition, processing and output of all data.
Compared with the prior art, the invention has the following advantages:
according to the embedded data acquisition processing terminal and the data acquisition processing method provided by the invention, data acquisition and output are realized in a plug-in mode, the plug-in is independently and respectively loaded and upgraded without mutual influence, the upgrade of a single acquisition device or an output type can be dynamically completed, the terminal does not need to be restarted, the data processing process does not need to be interrupted, and the data acquisition processing efficiency is effectively ensured.
Meanwhile, the plug-in used in the invention has various forms and rich functions, can be used as input equipment and output equipment, and can simultaneously process the input and output of data, thereby realizing the increase of the types of acquisition equipment or output data, avoiding the modification of other modules in the data processing process and ensuring that the expansion process of the whole terminal is more flexible and rich.
The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings for the purpose of facilitating understanding and understanding of the technical solutions of the present invention.
Drawings
Fig. 1 is a schematic overall structure diagram of the terminal of the present invention;
FIG. 2 is a schematic diagram of an internal CPU according to the present invention.
Detailed Description
The invention provides an embedded data acquisition processing terminal and a data acquisition processing method using the same, which are as follows.
As shown in fig. 1, an embedded data acquisition processing terminal includes:
the Central Processing Unit (CPU) is used for receiving the data from the acquisition equipment, processing and analyzing the data and then outputting the data;
the acquisition equipment connecting unit is externally connected with acquisition equipment, electrically connected with the central processing unit and used for transmitting data from the acquisition equipment to the central processing unit;
the broadband network connection unit is electrically connected with the central processing unit and is used for connecting the industrial internet platform and the output equipment, realizing data input of network equipment and part of acquisition equipment by virtue of a broadband network and transmitting the output of the central processing unit to the industrial internet platform and the output equipment;
the terminal comprises a central processing unit, a terminal and a power supply unit, wherein the central processing unit adopts a full log AllWinnerA33, the terminal is electrically connected with a 1Gbyte NAND flash memory (NANDFLASH) and a 512Mbyte DDR3 Dynamic Random Access Memory (DRAM), the power supply unit is used for supplying power for all parts, and the power supply unit is electrically connected with the central processing unit and other units.
The acquisition device connecting unit includes analog to digital converter (ADC) and communication interface subassembly, the communication interface subassembly includes RS232 interface and RS485 interface, central processing unit with the help of the external wired analog sensor of analog to digital converter, with the help of the external PLC control system of RS232 interface and RS485 interface, the RS485 interface adopts the ModbusRTU agreement.
The broadband network connection unit comprises a WIFI module, a 3G/4G module and an Ethernet (Ethernet) module.
The hardware structure can support most of hardware acquisition equipment of the current industrial Internet, so that the application range is very wide.
As shown in fig. 2, the central processor includes:
the main processing module is used for realizing the control of overall processing and scheduling of the terminal, connecting and scheduling other modules, and completing the functions of all data reading, processing output, plug-in management and the like;
the plug-in module is used for storing and recording various plug-ins, and each plug-in comprises various functions for recording contents and serving as an interface;
the plug-in processing module is connected with the plug-in module and is used for defining a general plug-in format and an interface, managing the upgrade of the plug-in and searching and loading the plug-in according to the configuration;
the data input module is used for calling the data reading interface acquisition equipment connecting units of all loaded input plugins in a multithreading mode to read the data of the acquisition equipment, preprocessing the data and then sending the data;
the data processing module is used for acquiring the data from the data input module, performing general processing on the data and then transmitting the data;
and the data output module is used for receiving the data from the data processing module and calling the plug-in the plug-in module according to the configuration and the data source to output the data.
Further, a plurality of plug-ins are stored and recorded in the plug-in module, including:
the input plug-in unit group comprises a plurality of input plug-in units, is loaded and operated by the plug-in unit processing module in a dynamic loading mode, and reads and processes the acquired data from the acquisition equipment, and comprises an ADC input plug-in unit, an RS232 input plug-in unit, a ModbusRTU input plug-in unit, a ModbusTCP input plug-in unit and a UDP input plug-in unit;
the output plug-in unit comprises a plurality of output plug-in units, is loaded and operated by the plug-in unit processing module in a dynamic loading mode, and outputs processed data, and comprises a time sequence data output plug-in unit and a file uploading plug-in unit;
and the bidirectional plug-in unit comprises a plurality of bidirectional plug-in units, and the bidirectional plug-in units simultaneously have the functions of the input plug-in units and the output plug-in units.
It should be noted that the embedded data acquisition processing terminal of the present invention operates in an embedded Linux operating system, the dynamic loading of the plug-ins employs the Linux application dynamic library loading principle, all the plug-ins employ a uniform format and entry, are compiled into a dynamic library, and employ a form of upgrading and releasing together with the data acquisition process or separately. All the plug-ins are placed in the same directory, the plug-in processing module can automatically search all the plug-in dynamic libraries of the directory, open the dynamic libraries and load the dynamic libraries through the predefined dynamic library entry function.
The unified format of the plug-ins is defined as follows, i.e. each of said plug-ins contains the following contents and interfaces:
the plug-in name is used for identifying the plug-in;
the input equipment type is used for providing a basis for the plug-in processing module to search for an input plug-in;
the output data type is used for providing basis for the plug-in processing module to search the output plug-in;
a plug entry function for loading a plug-in as a plug-in through which the plug-in registers other functions within the plug-in as well as the input device type and the output data type;
an Open (Open) function for opening the acquisition device and the output device;
a Close function for closing the acquisition device and the output device.
In addition, according to the different types of the plug-ins, the contents of the plug-ins are slightly different, and if the plug-ins are input plug-ins, the plug-ins also comprise a Read function for reading data from the acquisition equipment;
if the plug-in is an output plug-in, the plug-in also comprises a writing (Write) function for outputting data;
if the plug-in is a bidirectional plug-in, the plug-in simultaneously comprises a reading function and a writing function, and the reading function and the writing function also have the corresponding functions of data reading and data output, and the plug-in also comprises an instruction (Ioctrl) function for modifying the parameters of the plug-in, the acquisition equipment and the output equipment.
In the actual application process, the format, the entry and the like of the plug-in can be adaptively adjusted, and can be in other formats.
A data acquisition processing method uses the embedded data acquisition processing terminal, and comprises the following steps:
s1, determining required acquisition equipment and output data types according to an application scene;
s2, completing installation of an operating system, tools and software on the embedded data acquisition processing terminal, loading corresponding input plugins, output plugins and bidirectional plugins into a specified plugin directory in a plugin module, and then configuring the plugins according to acquisition equipment and output data types;
and S3, running a data acquisition and processing process, reading plug-in configuration information by the main processing module and running other modules, and jointly matching the plug-in processing module, the data input module, the data processing module and the data output module to finish data acquisition, processing and output.
S3 specifically comprises the following steps:
s31, the plug-in processing module searches all plug-ins in a plug-in directory specified by the plug-ins, and then the plug-in processing module loads all the plug-ins one by one;
s32, the plug-in processing module completes plug-in registration through an entry function in the plug-in;
s33, the plug-in processing module runs the reading functions of all input plug-ins in a multithreading mode and reads data from the acquisition equipment, wherein each plug-in corresponds to one thread;
s34, the plug-in carries out data processing related to hardware according to the characteristics of the acquisition equipment, the plug-in sends the read data to the data processing module, the data processing module carries out general processing on the data immediately, for example, data which cannot be identified is converted into data which can be identified by temperature, pressure and the like according to a formula,
s35, the data output module finds a corresponding output plug-in unit according to the configured data output type, calls a writing function of the output plug-in unit, and processes data according to the output data type, for example, a time sequence data output plug-in unit converts data such as temperature and pressure into a time sequence data format required by an industrial Internet platform or output equipment, a file uploading plug-in unit packs vibration original data into a compressed file and the like, and then the output plug-in unit calls a corresponding output processing tool to send the processed data to the industrial Internet platform or the output equipment, for example, the time sequence data output plug-in unit calls MQTT to upload time sequence data, and the file uploading plug-in unit calls an HTTP to upload files;
and S36, repeating S34-S35, and completing the acquisition, processing and output of all data.
The embedded data acquisition processing terminal and the data acquisition processing method provided by the invention can be compatible with various data types such as ADC, modbusRTU, modbusTCP, RS232, UDP and the like, and can be accessed to various input devices. The invention adopts the form of plug-in to realize the processing and output of the input data aiming at different input devices, which is different from the traditional embedded device driving mode.
When the code, data format and even communication protocol of the plug-in are required to be modified, a developer only needs to recompile and upgrade the equipment plug-in and reload the plug-in by the terminal, and the whole operation process has no influence on other various input equipment, so that the terminal expansion is flexibly realized, the acquisition equipment or compatible data types are increased, the operation interference on other modules is avoided, and the efficiency of the data acquisition and processing process is ensured.
In addition, the invention also provides reference for other related problems in the same field, can be expanded and extended on the basis of the reference, is applied to other technical schemes related to data acquisition or data processing in the same field, and has very wide application prospect.
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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. An embedded data acquisition processing terminal, comprising:
the central processing unit is used for receiving the data from the acquisition equipment, processing and analyzing the data and then outputting the data,
the acquisition equipment connecting unit is externally connected with acquisition equipment, is electrically connected with the central processing unit and is used for transmitting data from the acquisition equipment to the central processing unit,
a broadband network connection unit electrically connected with the central processing unit and used for connecting the industrial internet platform and the output equipment, realizing data input of the network equipment and part of the acquisition equipment by means of a broadband network, transmitting the output of the central processing unit to the industrial internet platform and the output equipment,
the central processing unit is also electrically connected with a NAND flash memory and a dynamic random access memory, the terminal also comprises a power supply unit for supplying power to each part, and the power supply unit is electrically connected with the central processing unit and other units;
the central processing unit includes:
a main processing module for realizing the control of the overall processing and scheduling of the terminal, connecting and scheduling other modules, completing all data reading, processing output and plug-in management functions,
a plug-in module for storing and recording a plurality of plug-ins, each of which contains a plurality of functions for recording contents and as interfaces,
a plug-in processing module connected with the plug-in module for defining a general plug-in format and interface, managing the upgrade of the plug-in and searching and loading the plug-in according to the configuration,
the data input module is used for calling the acquisition equipment connecting unit to read the data of the acquisition equipment, sending the data after preprocessing the data,
a data processing module for acquiring the data from the data input module, performing general processing on the data and then transmitting the data,
the data output module is used for receiving the data from the data processing module and calling the plug-in the plug-in module according to the configuration and the data source to output the data;
a plurality of plug-ins are stored and recorded in the plug-in module, including:
the input plug-in set comprises a plurality of input plug-in units, is loaded and operated by the plug-in processing module in a dynamic loading mode, reads and processes the acquired data from the acquisition equipment, and comprises an ADC input plug-in unit, an RS232 input plug-in unit, a ModbusRTU input plug-in unit, a ModbusTCP input plug-in unit and a UDP input plug-in unit,
an output plug-in group which comprises a plurality of output plug-ins, is loaded and operated by the plug-in processing module in a dynamic loading mode, outputs the processed data, and comprises a time sequence data output plug-in and a file uploading plug-in,
the bidirectional plug-in comprises a plurality of bidirectional plug-ins, and the bidirectional plug-ins simultaneously have the functions of the input plug-ins and the output plug-ins;
all plugins in the plugin module adopt a uniform format, and each plugin comprises the following contents and interfaces:
a plug-in name for identifying the plug-in,
an input device type for providing basis for the plug-in processing module to search the input plug-in,
an output data type for providing basis for the plug-in processing module to search the output plug-in,
an entry function for loading an entry as a plug-in through which the plug-in registers other functions within the plug-in as well as said input device type, output data type,
a turn-on function for turning on the acquisition device and the output device,
a closing function for closing the acquisition device and the output device;
if the plug-in is an input plug-in, the plug-in also comprises a reading function for reading data from the acquisition equipment,
if the plug-in is an output plug-in, the plug-in also contains a writing function for outputting data,
if the plug-in is a bidirectional plug-in, the plug-in simultaneously comprises a reading function and a writing function, and the plug-in also comprises a command function for modifying parameters of the plug-in, the acquisition equipment and the output equipment.
2. The embedded data acquisition processing terminal of claim 1, wherein: the acquisition equipment connecting unit includes analog-to-digital converter and communication interface subassembly, the communication interface subassembly includes RS232 interface and RS485 interface, central processing unit with the help of the external wired analog sensor of analog-to-digital converter, with the help of the external PLC control system of RS232 interface and RS485 interface, the RS485 interface adopts the modbusRTU agreement.
3. The embedded data acquisition processing terminal of claim 1, wherein: the broadband network connection unit comprises a WIFI module, a 3G/4G module and an Ethernet module.
4. A data acquisition processing method using the embedded data acquisition processing terminal as claimed in any one of claims 1 to 3, characterized by comprising the following steps:
s1, determining required acquisition equipment and output data types according to an application scene;
s2, completing installation of an operating system, tools and software on the embedded data acquisition processing terminal, loading corresponding input plugins, output plugins and bidirectional plugins into a plugin directory specified in a plugin module, and then configuring the plugins according to acquisition equipment and output data types;
and S3, running a data acquisition and processing process, reading plug-in configuration information by the main processing module and running other modules, and completing data acquisition, processing and output by jointly matching the plug-in processing module, the data input module, the data processing module and the data output module.
5. The data acquisition and processing method according to claim 4, wherein S3 comprises the following steps:
s31, the plug-in processing module searches all plug-ins in a plug-in directory specified by the plug-ins, and then the plug-in processing module loads all the plug-ins one by one;
s32, the plug-in processing module completes plug-in registration through an entry function in the plug-in;
s33, the plug-in processing module runs the reading functions of all input plug-ins in a multithreading mode and reads data from the acquisition equipment;
s34, the plug-in sends the read data to a data processing module, and the data processing module carries out general processing on the data immediately;
s35, the data output module finds a corresponding output plug-in unit according to the configured data output type, calls a writing function of the output plug-in unit, processes data according to the output data type, and then the output plug-in unit sends the processed data to an industrial Internet platform or output equipment;
and S36, repeating S34-S35 to complete the acquisition, processing and output of all data.
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