CN113934186B - Multi-program-controlled instrument control method based on SCPI command - Google Patents
Multi-program-controlled instrument control method based on SCPI command Download PDFInfo
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- CN113934186B CN113934186B CN202111178570.6A CN202111178570A CN113934186B CN 113934186 B CN113934186 B CN 113934186B CN 202111178570 A CN202111178570 A CN 202111178570A CN 113934186 B CN113934186 B CN 113934186B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000006855 networking Effects 0.000 claims abstract description 23
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000004806 packaging method and process Methods 0.000 claims abstract description 7
- 230000010354 integration Effects 0.000 claims abstract 4
- 230000008569 process Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013079 data visualisation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33139—Design of industrial communication system with expert system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Selective Calling Equipment (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention belongs to the field of instrument control, in particular to a multi-program control instrument control method based on an SCPI command, which now proposes the following scheme that the method comprises the following steps: s1: establishing an SCPI instruction integration library: establishing an SCPI instruction integrated library of product subsystem commands; s2: packaging SCPI instruction integration library: packaging the established SCPI instruction integrated library; s3: instrument networking: networking the instrument to be networked by using a Local Area Network (LAN) interface of the instrument to be networked and using a switch; s4: networking instrument identification: identifying a networking instrument through an IEEE universal instruction; s5: and (3) data acquisition: data of the networking instrument is collected. The invention unifies the interfaces of the program-controlled instruments, greatly simplifies the connection communication steps of the PC and the program-controlled instruments, ensures that a user does not need to memorize complex SCPI instructions, realizes the control and data reading of various types of instruments, can realize the synchronous data transmission of various measuring instruments, and is suitable for complex measurement conditions.
Description
Technical Field
The invention relates to the technical field of instrument control, in particular to a multi-program control instrument control method based on an SCPI command.
Background
Under the hot tide of intelligent factories and industrial Internet of things, a technology for remotely detecting and controlling a production environment by using a program control instrument is increasingly paid attention to. Along with the improvement of the complexity of production and research and development environments, the requirements of people on the speed and accuracy of data exchange between a program control instrument and a host machine and the cooperative control of multiple instruments are also higher and higher.
The SCPI instruction is a set of standard syntax and commands based on IEEE488.2 for controlling programmable measuring instruments. The method adopts a set of command sets with tree-like layered structure, and proposes a universal instrument model with universality. Wherein the commands are divided into two kinds, one is an IEEE general command such as: * CLS (clear), -IDN (query), -RCL (reset), one control command specific to a subsystem command, i.e., a different type of instrument.
The current PC and program control instrument interaction system, such as NI MAX, can realize the control and data reading of the PC end to the program control instrument by sending an SCPI instruction, but the existing technology for remotely detecting and controlling the production environment by using the program control instrument has the following problems:
1. the existing interaction system of the PC and the program controlled instrument has no uniform interface, and a user is often required to additionally install a driver of a GPIB or RS2332 interface, so that inconvenience is brought to use;
2. at present, control and data reading of a program-controlled instrument by a PC are mainly realized by inputting a single SCPI instruction by a user, real automatic measurement and data acquisition are difficult to realize, and because of different subsystem commands of instruments of different types, the universality of instrument control programs is poor, and the user needs to memorize a large number of complex SCPI instructions;
3. the current PC and program-controlled instrument interaction system cannot realize data visualization and cooperative control and data reading among instruments of different types under the condition of no need of secondary development, and has large data processing difficulty and difficulty in meeting complex measurement requirements.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, a PC and a program control instrument interaction system do not have a uniform interface, a user needs to memorize a large number of complex SCPI instructions, the data processing difficulty is high, and the complex measurement requirement is difficult to meet.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the control method of the multi-program controlled instrument based on the SCPI command comprises the following steps:
s1: establishing an SCPI instruction inheritance library: establishing an SCPI instruction inheritance library of the product subsystem command;
s2: packaging SCPI instruction inheritance library: encapsulating the established SCPI instruction inheritance library;
s3: instrument networking: networking the instrument to be networked by using a Local Area Network (LAN) interface of the instrument to be networked and using a switch;
s4: networking instrument identification: identifying a networking instrument through an IEEE universal instruction;
s5: and (3) data acquisition: collecting data of a networking instrument;
s6: UI interface control: after the identification is finished, the user can complete the control of the multi-program-controlled instrument and the complex measurement task through the UI interface.
Preferably, in S2, the SCPI instruction inheritance library is encapsulated according to a corresponding instrument operation mode and a data reading mode.
Preferably, in S2, the SCPI instruction inheritance library is packaged into a corresponding function.
Preferably, in the step S3, no additional driver is required to be installed, and only a network cable or a wireless router is required to be connected to achieve communication with the instrument.
Preferably, in the step S4, the model of the networking instrument is queried through the IEEE general command, and the corresponding process is started after the returned instrument model data is obtained.
Preferably, in S5, the collected data is stored in a specified folder in a format of tdms file.
Preferably, in the step S6, the UI interface controls and reads data of a plurality of measuring instruments with different models.
The invention has the beneficial effects that:
(1) According to the multi-program-controlled instrument control method based on the SCPI command, disclosed by the invention, the interface of the program-controlled instrument is unified through the technology of automatically identifying the instrument in the local area network by traversing the address and the IEEE universal instruction, and the connection communication step of the PC and the program-controlled instrument is greatly simplified;
(2) The SCPI command-based multi-program-controlled instrument control method integrates an IEEE general command, an SCPI command library of main flow measuring instrument subsystem commands and a function formed by combining and packaging the commands in the library according to different instrument functions, so that a user can realize control and data reading of various types of instruments by calling the function through a UI interface without memorizing complex SCPI commands;
(3) The multi-program-controlled instrument control method based on the SCPI command, which is provided by the invention, has the advantages that the technology of the multi-program-controlled instrument can realize synchronous data transmission of various measuring instruments, and is suitable for complex measuring conditions.
Drawings
FIG. 1 is a schematic diagram of a program controlled instrument networking connection in a SCPI command-based multi-program controlled instrument control method according to the present invention;
FIG. 2 is a flow chart of a method for controlling a multi-program controlled instrument based on an SCPI command according to the present invention;
FIG. 3 is a schematic diagram of a SCPI command inheritance library section in the SCPI command-based multi-program-controlled instrument control method of the present invention;
FIG. 4 is a schematic diagram of an oscilloscope control effect;
FIG. 5 is a schematic diagram of the control effect of a digital multimeter;
fig. 6 is a schematic diagram of the control effect of the signal generator.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-6, a multi-program controlled instrument control method based on SCPI commands, comprising the steps of:
s1: establishing an SCPI instruction inheritance library: establishing an SCPI instruction inheritance library of the product subsystem command;
s2: packaging SCPI instruction inheritance library: encapsulating the established SCPI instruction inheritance library;
s3: instrument networking: networking the instrument to be networked by using a Local Area Network (LAN) interface of the instrument to be networked and using a switch;
s4: networking instrument identification: identifying a networking instrument through an IEEE universal instruction;
s5: and (3) data acquisition: collecting data of a networking instrument;
s6: UI interface control: after the identification is finished, the user can complete the control of the multi-program-controlled instrument and the complex measurement task through the UI interface.
In the invention, in the step S2, the SCPI instruction inheritance library is packaged according to the corresponding instrument operation mode and the data reading mode.
In the invention, in the step S2, the SCPI instruction inheritance library is packaged into a corresponding function.
In the invention, in the step S3, the communication with the instrument can be realized only by connecting a network cable or a wireless router without installing an additional driver.
In the invention, in the step S4, the model of the networking instrument is queried through the IEEE universal instruction, and the corresponding process is started after the returned instrument model data is obtained.
In the invention, in the step S5, the collected data is stored in the designated folder in the format of the tdms file, the mode of one process of an instrument is adopted to communicate with the program-controlled instrument, and the collected data is stored in the designated folder in the format of the tdms file, so that synchronous control and data reading of instruments of different types can be directly realized, the steps of data processing are greatly simplified, and the more complex measurement requirements can be met.
In the invention, in the step S6, the UI interface performs control and data reading on a plurality of measuring instruments with different models.
As shown in fig. 1, the instruments are networked by using the LAN interface of the instruments, and the PC can realize communication with the instruments by connecting a network cable or a wireless router without installing an additional drive.
As shown in fig. 2, after the PC is connected to the network, the IP address of the connected instrument is found by traversal, and by IEEE general instruction "? The method comprises the steps of inquiring the model of the instrument, creating corresponding categories and starting corresponding processes after the returned instrument model data are obtained, and enabling a user to manage and control the processes through a UI interface so as to realize control and data reading of a plurality of measuring instruments with different models.
As shown in fig. 3, the SCPI instruction library integrated with the IEEE universal command and the subsystem command of the main flow measuring instrument combines and encapsulates the SCPI instructions into corresponding functions according to the specific functions of the instrument, and the user can call the functions to realize the control of the multi-program controlled instrument by operating the UI interface without memorizing the SCPI instructions.
Taking an oscilloscope MSO3032, a digital multimeter DM34450A and a signal generator DG4062 as an example, the control effect through the UI interface is shown in FIG. 4, FIG. 5 and FIG. 6, and according to the control effect, it can be clearly known that:
1. the LAN port and the exchanger of the instrument are utilized to network the instrument, the instrument is automatically identified in a traversing address and IEEE general instruction mode, and the connection of a plurality of program-controlled instruments and a PC can be realized without additional driving programs and setting, so that the communication steps of the program-controlled instruments and the PC are simplified;
2. an SCPI instruction library integrating the IEEE general instruction and the subsystem instruction of the main flow measuring instrument is designed, the instructions are combined and packaged according to the functions of different instruments, a user does not need to memorize specific SCPI instructions, and the control and data reading of measuring instruments of different types can be realized by using a UI interface;
3. the instrument is controlled in a one-process mode by adopting one instrument, and the read data is stored in a tdms format, so that synchronous data acquisition of various measuring instruments with different types is realized, and the data processing steps are simplified.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The multi-program-controlled instrument control method based on the SCPI command is characterized by comprising the following steps of:
s1: establishing an SCPI instruction integration library: establishing an SCPI instruction integrated library of product subsystem commands;
s2: packaging SCPI instruction integration library: packaging the established SCPI instruction integrated library;
s3: instrument networking: networking the instrument to be networked by using a Local Area Network (LAN) interface of the instrument to be networked and using a switch;
s4: networking instrument identification: identifying a networking instrument through an IEEE universal instruction;
s5: and (3) data acquisition: collecting data of a networking instrument;
s6: UI interface control: after the identification is finished, the user can complete the control of the multi-program-controlled instrument and the complex measurement task through the UI interface.
2. The SCPI command-based multi-program-controlled instrument control method according to claim 1, wherein in S2, the SCPI command integrated library is packaged according to a corresponding instrument operation mode and a data reading mode.
3. The SCPI command-based multi-program-controlled instrument control method according to claim 1, wherein in S2, the SCPI instruction integrated library is packaged into a corresponding function.
4. The SCPI command-based multi-program-controlled instrument control method according to claim 1, wherein in S3, the communication with the instrument can be achieved only by connecting a network cable or a wireless router without installing an additional driver.
5. The SCPI command-based multi-program-controlled instrument control method according to claim 1, wherein in S4, the model of the networked instrument is queried by the IEEE general command, and the corresponding process is started after the returned instrument model data is obtained.
6. The SCPI command-based multi-program-controlled instrument control method according to claim 1, wherein in S5, the acquired data is stored in a designated folder in a format of tdms file.
7. The SCPI command-based multi-program-controlled instrument control method according to claim 1, wherein in S6, the UI interface controls and reads data of a plurality of measuring instruments of different models.
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| CN202111178570.6A CN113934186B (en) | 2021-10-10 | 2021-10-10 | Multi-program-controlled instrument control method based on SCPI command |
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