CN106373459A - A Paravirtualized Computer-Controlled Experimental System - Google Patents

Abstract

The application provides a computer control experiment system comprising a program development device, a program running device and a virtual scene running device, wherein the program development device is used for writing a program used for controlling a virtual controlled device and writing the program into the program running device, the program running device is connected with the program development device and is used for running the program, first running data generated during running processes is sent to the virtual scene running device via a virtual scene interface plate, and the virtual scene running device is connected with the virtual scene interface plate and is used for virtually demonstrating operation of the virtual controlled device based on the first running data. Via application of the para-virtualization computer control experiment system disclosed in an embodiment of the invention, an application scene is partially virtualized, a construction cost of an experiment system can be lowered, and actual developing and programming capability of students can be effectively improved.

Description

A Paravirtualized Computer-Controlled Experimental System

technical field

The present application relates to the technical field of computer control, in particular to a computer-controlled experimental system.

Background technique

With the development of science and technology, the society has higher and higher requirements for the practical ability of college students, and the cultivation of students' practical ability by colleges and universities has become more and more important. Colleges and universities have not only strengthened various routine experimental content and increased experimental projects, but also focused on project training.

In the existing experimental system based on the computer control system, including operating equipment 11 as shown in Figure 1, peripheral interface 12, input signal conditioning board and output signal driver board 13, and input signal conditioning board and output signal driver board 13 are the four parts of peripheral devices 14 connected separately. Peripheral devices 14 usually include sensors, actuators, etc. Developers can directly interact, program and debug with the controlled devices in the application environment through the experimental system. However, in the experimental system, there are many internal devices in the experimental box, which are easily damaged and inconvenient to maintain. Moreover, due to the high cost of the actual controlled equipment, it is difficult to build one for each experimental system in the laboratory. At most, only limited Several of them are for teachers to demonstrate, so students can only do some verification experiments, and cannot perform the writing and debugging of the entire program. Due to the lack of a real application environment, the students' interest in learning is not high; and because the entire experimental system is not combined with the actual application scene, the training effect is not ideal.

A fully virtual experiment system is also proposed in the prior art, including a virtual development device, a virtual running device, a virtual interface board and a virtual simulation application device. However, the fully virtual experimental system is quite different from the actual scene. Students using this experimental system cannot touch the real development and operating environment at all. The actual application scenarios are quite different, and it cannot be a good exercise to improve the students' actual development ability.

Contents of the invention

In order to overcome the shortcomings in related technologies such as the high cost of experimental system construction and maintenance of real application scenarios, the lack of real application equipment and application scenarios in the full virtual experimental system, and the inability to better train students' actual development capabilities, this application provides a A computer-controlled experimental system.

According to the first aspect of the embodiments of the present application, a computer-controlled experimental system is provided, comprising:

A program development device, used for writing a program for controlling the controlled device, and writing the program into the program running device;

The program running device is connected to the program developing device, and is used to run the program, and send the first running data generated during running to the virtual scene running device through the virtual scene interface board;

The virtual scene running device is connected to the virtual scene interface board, and is used for virtual demonstration of the operation of the controlled device based on the first running data:

Optionally, the virtual scene running device is further configured to send the second running data generated during the virtual demonstration to the program running device through the virtual scene interface board;

The program running device is further configured to adjust and run the program based on the second running data.

Optionally, the virtual scene interface board is configured to convert and package the first or second operating data, and send the processed first operating data to the virtual scene operating device, and sending the processed second running data to the program running device;

The virtual scene running device is used to virtually demonstrate the running of the controlled device based on the processed first running data;

The program running device is configured to adjust and run the program based on the processed second running data.

Optionally, the program running device includes any one of a computer, a programmable controller, and an embedded device.

Optionally, the virtual scene running device includes any one of a computer, a tablet computer, a notebook, a mobile phone, and an embedded device.

The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

The computer-controlled experimental system provided by this application realizes the application scenarios by means of virtual simulation, which can ensure that students can develop and debug the experimental programs in the actual development and operation environment, and the application scenario environment after the experimental program is written is It is virtual, shareable, reusable, and extensible, which is conducive to exercising students' practical development ability and reducing the cost of experiment construction and maintenance. Since the application scenario is virtual and has high scalability, it can be further combined with actual product projects to virtualize the application environment of these projects, and an upgraded and new training platform that is consistent with the actual product projects can be created; The study time and place of the students will not be confined to the class time and the laboratory as in the prior art, and they can carry portable program development equipment based on computer control technology, operating equipment, virtual scene interface board and virtual scene operation Equipment, go back to the dormitory, go home to study and research.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application.

Fig. 1 is the structural representation of experimental system in the prior art;

Fig. 2 is a schematic structural diagram of a computer-controlled experimental system according to an exemplary embodiment of the present application.

detailed description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "at" or "when" or "in response to a determination."

As shown in Figure 2, Figure 2 is a block diagram of a computer-controlled experimental system shown according to an exemplary embodiment, the computer-controlled experimental system may include: a program development device 21, a program running device 22, a virtual scene interface board 23 and The virtual scene running device 24, wherein the virtual scene running device 24 can be used for virtual demonstration of the virtual controlled device instead of the actual device, so the computer-controlled experimental system provided by this application is a semi-virtualized experimental system.

Among them, the program development device 21 is used for developing and writing a program, the program is used for controlling the controlled device, and writing the written program into the running device 22 .

In the embodiment of the present application, the program development device 21 can be a computer, which is used for teachers and students to develop and write experimental programs based on computer control technology. The program is used to control the operation of virtual controlled equipment, and the virtual controlled equipment can be Controlled equipment such as valves, mechanical arms, and motors that are virtual on the virtual scene running equipment 24 .

The program running device 22 is connected to the program developing device 21 and is used to run the program written by the program developing device 21 .

In the embodiment of the present application, the program running device 22 can be, for example, an embedded system development board, a 51-chip microcomputer, a computer, a PLC (Programmable Logic Controller, programmable controller), etc., and the program running device 22 can include a sensor, an actuator, a switch And peripheral equipment such as regulators. Among them, the sensor is used to detect the current temperature, current, voltage and other data. These detected data can be used as the input of the program, and the actuator is used to use the operating data of the program as control information. The operating data can include digital signals, analog Signals, etc., and based on the control information, control the virtual controlled object.

For example, if the virtual controlled object is a valve, and the control information is switch value 1, then the control information is used to control the opening of the valve, and the control information is switch value 0, then the control information is used to control the valve to close; another example, the virtual controlled object Is the robotic arm. When the control information is raising, it is used to control the robotic arm to raise the set height. When the control information is lowering, it is used to control the robotic arm to lower the set height.

The virtual scene interface board 23 is connected with the program running device 22, and is used for receiving the running data sent by the program running device 22, and encapsulating the running data, and converting these data into a format recognizable by the virtual scene running device 24 or type, and then send the processed running data to the virtual scene running device 24 through a serial port line or USB (Universal Serial Bus, Universal Serial Bus).

The virtual scene running device 24 is configured to use the received running data as a control instruction to control the virtual controlled device to perform a virtual running demonstration.

In the embodiment of the present application, the virtual controlled object can be realized based on virtual simulation technology, for example, valves, motors, mechanical arms, etc. realized based on virtual simulation technology.

The virtual scene running device 24 in the embodiment of the present application may include: a terminal, such as a PC (Personal Computer, personal computer), a tablet computer, a notebook, a mobile phone, or an embedded system device and the like.

In the embodiment of the present application, the operating data of the virtual controlled object during the virtual demonstration process, such as the switching value of the valve, the rotational speed of the motor, etc., can also be detected and sent back to the program operating device 22 through the virtual scene interface board 23 , the program running device 22 can adjust the input conditions with the received feedback data and continue to run.

Students and teachers can determine whether the program is written correctly and whether debugging is needed through the running process on the program running device 22 and the running process demonstrated on the virtual scene running device 24 .

For example, the program written by the program development device 21 is a program for adjusting the opening of the valve, the program running device 22 runs the program, and sends the data generated during the running process to the virtual scene running through the virtual scene interface board 23 Device 24, the virtual scene running device 24 controls the operation of the virtual valve based on the program, the position information during the valve opening process can be sent back to the program running device 22, and the program running device 22 adjusts the speed of valve opening, the valve's position based on the position information Open time etc.

The computer-controlled experimental system provided by the present application will be described below through specific embodiments.

Example 1

In this embodiment, the computer-controlled experimental system is applied to the application scenario of controlling a virtual water meter.

Students use laptops to develop and write the program for controlling the water meter, and then write the program to the embedded system development board through the communication line for operation. The embedded system development board sends the meter reading instructions generated during the operation to the virtual The scene interface board, the virtual scene interface board converts the meter reading command, and then sends the converted meter reading command to the PC based on the RS232 serial communication protocol. The PC is installed with the virtual water meter application scene software, and the PC is based on the meter reading Command to run the virtual water meter, which can truly simulate multiple water meters in the remote meter reading environment. In this embodiment, the embedded system experimental program written by the students for controlling the water meter is the same as the program developed by the embedded system in the actual environment, and the debugging process is also the same. Compared with the traditional full virtual experimental system, Students can get in touch with real operating equipment such as single-chip microcomputers and interface boards, and can exercise students' experimental ability and program development ability in a practical way.

Example 2

In this embodiment, the computer-controlled experimental system is applied to the application scenario of controlling a virtual two-degree-of-freedom autosampler.

Students use PCs to develop and write programs for controlling two-degree-of-freedom autosamplers (for example, autosamplers supporting ion chromatographs), and write the programs into the PLC for operation, and the PLC will run the process The operating data (such as switch signal, analog signal, etc.) in the computer is sent to the virtual scene interface board as a control command, and the virtual scene interface board packages the control command, converts it into a format that can be recognized and processed by the PC, and then based on the USB The communication protocol sends the processed control instructions to the PC, and the virtual application scene software of the two-degree-of-freedom autosampler is installed on the PC, and the PC controls the virtual operation demonstration of the two-degree-of-freedom autosampler based on the received control instructions , and the PC feeds back the data detected during the virtual running process, such as position data, to the PLC through the virtual scene interface board, so that the PLC takes the feedback data as new input conditions to execute the next step.

In the actual application of the school, each semi-virtualized computer-controlled experimental system can be used by an experimental group, and the number of the group is generally 2 people. When conducting experiments, each group can be assigned a set of virtual scene software and its operating equipment, virtual scene interface board, program operating equipment, and program development equipment (PC). In this way, students' actual program development ability and debugging ability can be fully exercised, and the development cost of the experimental system can also be fully reduced. For example, in the case that students need to write programs to control motors, each experimental group is equipped with a motor, which is too costly and difficult to implement. However, the semi-virtualization method provided by the embodiment of this application can not only easily build an experimental system , It is also conducive to exercising the ability of students to actually develop.

The computer-controlled experimental system provided by this application implements the application scenarios by means of virtual simulation, which can ensure that students can develop and debug the experimental programs in the actual development and operation environment, and the application scenario environment after the experimental program is written It is virtual, shareable, reusable, and extensible, which is conducive to exercising students' actual development ability and reducing the cost of experiment construction and maintenance; because the application scene is virtual and has high scalability, it can be further developed Combining actual product projects and virtualizing the application environments of these projects, an upgraded and new training platform that is consistent with actual product projects can be created; students can even carry portable computer-controlled technology experiment programs to run equipment and virtual scenes Interface board and virtual application scene software, back to the dormitory for research, the study time and place are not confined to the class time and laboratory.

Other embodiments of the application will be readily apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any modification, use or adaptation of the application, these modifications, uses or adaptations follow the general principles of the application and include common knowledge or conventional technical means in the technical field not disclosed in the application . The specification and examples are to be considered exemplary only, with a true scope and spirit of the application indicated by the following claims.

The above is only a preferred embodiment of the application, and is not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application should be included in the application. within the scope of protection.

Claims (5)

1. a kind of Computer Control Experiment System is it is characterised in that include:

Program development equipment, for writing the program for controlling virtual controlled plant, and described program write-in program is run Equipment；

Described program runs equipment, is connected with described program development equipment, for running described program, and will produce in running The first raw service data is sent to virtual scene by virtual scene interface board and runs equipment；

Described virtual scene runs equipment, is connected with described virtual scene interface board, for empty based on described first service data Intend demonstrating the operation of described virtual controlled plant.

2. Computer Control Experiment System according to claim 1 it is characterised in that

Described virtual scene runs equipment and is additionally operable to for the second service data producing during described virtual demonstration to pass through institute State virtual scene interface board and be sent to described program operation equipment；

Described program is run equipment and is additionally operable to run described program based on described second service data adjustment.

3. Computer Control Experiment System according to claim 2 it is characterised in that

Described virtual scene interface board is used for for described first service data or the second service data carrying out conversion process and encapsulation Process, and the first service data after processing is sent to described virtual scene and run equipment, the second operation number after processing Run equipment according to being sent to described program；

Described virtual scene runs the first service data described controlled plant of virtual demonstration after equipment is used for based on described process Operation；

Described program is run the second service data adjustment after equipment is used for based on described process and is run described program.

4. the Computer Control Experiment System according to any one of claim 1-3 is it is characterised in that described program operation sets Any one in standby inclusion computer, Programmable Logic Controller, embedded device.

5. the Computer Control Experiment System according to any one of claim 1-3 is it is characterised in that described virtual scene is transported Row equipment includes computer, panel computer, notebook, mobile phone, any one in embedded device.