CN112233486A - Virtual experiment system for embedded system application teaching - Google Patents
Virtual experiment system for embedded system application teaching Download PDFInfo
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- CN112233486A CN112233486A CN202011130520.6A CN202011130520A CN112233486A CN 112233486 A CN112233486 A CN 112233486A CN 202011130520 A CN202011130520 A CN 202011130520A CN 112233486 A CN112233486 A CN 112233486A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09B9/00—Simulators for teaching or training purposes
Abstract
The invention relates to a virtual experiment system for embedded system application teaching, which comprises a WEB server and a plurality of core monitoring terminals. The WEB server is interconnected with each core monitoring terminal through a local area network, and each monitoring terminal consists of a monitoring module and an experiment module. The main control chip of the experiment module is an embedded system chip which needs to be learned in a virtual teaching experiment, and all universal interface pins of the chip are connected to the main control chip pins of the monitoring module and are completely monitored by the monitoring module. The system adopts a virtual experiment method of directly running experiment codes on an actual chip and monitoring pin states and displaying running effects on virtual equipment, thereby meeting the requirements of application experiment simulation of the embedded system. Compared with the prior art, the invention does not need to use third-party simulation software, is convenient to use, has strong applicability and is convenient for experimental examination and management.
Description
Technical Field
The invention belongs to the technical field of virtual experiment teaching, and particularly relates to a virtual experiment system for embedded system application teaching.
Background
The embedded system applies courses to develop the practical ability of students, and most schools adopt laboratories to complete experiments in a laboratory box at present. Limited by laboratory conditions and experimental time arrangement, students can only do experiments in class, and can not independently learn by using the time after class, and the teaching effect is not ideal. The existing simulation software such as PROTECTUS provides some simulation functions of embedded system chips, but some chips can not support the simulation functions, and the problems of software authorization and the like exist.
Through search, the Chinese invention patent (application number 201710656579.0) discloses a remote single-chip microcomputer virtual experiment system, experiments are completed on a virtual experiment server through remote control software, and the experiment processes and effects of students are recorded in a video recording mode. The virtual experiment method still needs to install and use simulation software of a third party such as PROTECTUS, and the problems can not be solved. In addition, teachers need to spend a large amount of time on watching recorded experimental videos, and the evaluation of experimental examination is not convenient.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the virtual experiment system for the embedded system application teaching is provided, third-party simulation software is not needed, and teachers can conveniently check and examine the virtual experiment system.
The technical scheme of the invention is as follows: the utility model provides a virtual experiment system towards embedded system application teaching which characterized in that: the system comprises a WEB server and a plurality of core monitoring terminals; the WEB server is interconnected with each core monitoring terminal through a local area network; the core monitoring terminal consists of a monitoring module and an experiment module;
the main control chip of the experiment module is an embedded system chip which needs to be learned in the virtual teaching experiment, and all universal interface pins of the embedded system chip are connected to the main control chip pins of the monitoring module and are completely monitored by the monitoring module; the number of universal interface pins of the main control chip of the monitoring module is more than that of the main control chip of the experimental module;
the operation process of the virtual experiment system is as follows:
step 1, a user accesses the WEB server by using a browser, enters a virtual experiment interface after information verification is completed, and the server is associated with a core monitoring terminal;
step 2, a user designs an interface circuit in the virtual experiment interface, including adding an embedded system chip and virtual external equipment, and configuring the interface pin connection condition between the chip and the virtual external equipment; uploading the configuration information to a WEB server after the configuration is finished, and transmitting interface configuration information to be monitored to a monitoring module of an associated core monitoring terminal by the server;
step 3, a user uses IDE software of the embedded system to carry out experimental programming design and generate new firmware data; then uploading the data in the virtual experiment interface, and then forwarding the data to an experiment module of an associated core monitoring terminal through a WEB server;
step 4, after receiving the new firmware data, the experiment module stores the new firmware data into a code area of the embedded system chip to automatically complete firmware updating; after the update is finished, firmware update finishing information is sent to the user through the WEB server;
step 5, after receiving the firmware updating completion information in the virtual experiment interface, a user starts a virtual experiment system to run, and the WEB server sends starting command information to a monitoring module of the associated core monitoring terminal; after the monitoring module receives the starting command, restarting the experiment module, and then starting to run the firmware which is newly uploaded by the user by the experiment module;
step 6, the monitoring module monitors the state of the corresponding interface pin in real time according to the interface configuration information to be monitored received in the step 2, generates interface monitoring real-time information and uploads the interface monitoring real-time information to the WEB server; after receiving the information, the WEB server changes the display effect of the virtual external equipment so as to simulate the operation effect of the experimental program and provide the user for browsing and observation;
7, in the virtual operation process, if the virtual external equipment comprises the input equipment, the user can operate and change the state of the input equipment in the virtual experiment interface; at the moment, the WEB server sends input equipment state information to the monitoring module according to the user operation condition; the monitoring module generates required signals on corresponding pins after receiving the signals so as to simulate the operation effect of the input equipment and detect the input signals during the operation of the experiment module;
step 8, repeatedly executing the steps 6 to 7 until the user sends the information of the command of stopping virtual operation in the virtual experiment interface, and ending the repeated circulation process;
9, if the user exits from the virtual experiment interface or does not operate the virtual experiment interface for a long time, the WEB server disconnects the association between the user and the core monitoring terminal and waits for the associated use of other users;
step 10, if the user needs to modify the code to perform virtual simulation again, returning to the step 3; and if the user needs to modify the interface circuit or make new experimental contents, returning to the step 2 and re-designing the interface circuit.
As a preferred scheme of the invention, users can be divided into student users and teacher users, the student users can also finish experiment homework and experiment examinations in the virtual experiment interface, and the teacher users can finish reading and reviewing student experiment homework conditions and experiment examination scores in the virtual experiment interface and count scores.
The invention adopts a virtual experiment method of running experiment codes on an actual chip and displaying the running effect on virtual equipment by monitoring the pin state, and can help students to use a WEB browser to complete the virtual experiment simulation function related to the application of the embedded system on line. Compared with the prior art, the invention does not need to use third-party simulation software, is convenient to use, has strong applicability and is convenient for experimental examination and management.
Drawings
FIG. 1 is a schematic diagram of the overall architecture of a remote virtual experiment system
FIG. 2 is a schematic diagram of a remote virtual experiment system operating process and data transmission.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
The virtual experiment system shown in fig. 1 includes a WEB server and a plurality of core monitoring terminals; the WEB server is interconnected with each core monitoring terminal through a local area network. And the user of the virtual experiment terminal accesses the WEB server by using a computer browser to perform virtual teaching experiments.
Each monitoring terminal consists of a monitoring module and an experiment module. The main control chip of the experiment module is an embedded system chip which needs to be learned in a virtual teaching experiment, and all universal interface pins of the chip are connected to the main control chip pins of the monitoring module. The type of the main control chip of the monitoring module is not limited, but the number of the pins of the universal interface of the monitoring module is more than that of the main control chip of the experiment module, so that all the pins of the main control chip of the experiment module can be completely monitored.
The operation process and data transmission of the virtual experiment system are shown in fig. 2. The operation process of the virtual experiment system is described as follows:
firstly, a user accesses a WEB server of a virtual experiment system by using a browser, enters a virtual experiment interface after information verification is completed, and the server is associated with a core monitoring terminal.
Then, the user can start to perform a virtual experiment, and the experiment needs to complete two parts of interface circuit design and experiment programming design.
On one hand, a user designs an interface circuit in a virtual experiment interface, including adding an embedded system chip and virtual external equipment, and configuring the connection condition of the chip and an interface pin of the equipment; and uploading the configuration information to a WEB server after the configuration is finished, and transmitting the configuration information of the interface to be monitored to a monitoring module of the associated core monitoring terminal by the server.
On the other hand, the user uses various IDE software of the embedded system to carry out experimental programming design, and finally generates the latest firmware data; and then uploading the data in the virtual experiment interface, and then forwarding the data to an experiment module of the related core monitoring terminal through a WEB server. After receiving the new firmware, the experiment module stores the new firmware into a code area of the embedded system chip to automatically complete firmware updating; and after the update is finished, sending firmware update finishing information to the user through the WEB server.
Then, after the two parts of contents are confirmed to be finished, a user can start virtual operation in a virtual experiment interface, and at the moment, the WEB server sends starting command information to a monitoring module of the associated core monitoring terminal; and after the monitoring module receives the starting command, restarting the experiment module, and then starting to run the latest program uploaded by the user by the experiment module.
Meanwhile, the monitoring module monitors the state of a corresponding interface pin in real time according to the latest received interface configuration information to be monitored, generates interface monitoring real-time information and uploads the interface monitoring real-time information to the WEB server; and after receiving the information, the WEB server changes the display effect of the virtual external equipment so as to simulate the operation effect of the experimental program for the user to browse and observe.
In the virtual operation process, if the virtual external equipment has input equipment, a user can operate and change the state of the input equipment in the virtual experiment interface; at the moment, the WEB server sends input equipment state information to the monitoring module according to the user operation condition; the monitoring module generates required signals on corresponding pins after receiving the signals, so that the operation effect of the input equipment is simulated, and the experiment module can detect the input signals in the running process.
And repeating the steps of the virtual operation process until the user sends the information of the command for stopping the virtual operation in the virtual experiment interface, and finishing the cycle process.
And finally, when the user exits the virtual experiment interface or does not operate the virtual experiment interface for a long time, the WEB server disconnects the association between the user and the core monitoring terminal, and the monitoring terminal is idle at the moment and can be used by other users, so that the effective utilization rate of the virtual experiment teaching system is improved.
The two parts of content can be repeatedly modified and uploaded after being completed. If the user wants to modify the codes and perform virtual simulation again, firmware data can be uploaded again on the virtual experiment interface and then sequentially executed downwards; if the interface circuit is to be modified or new experimental contents are to be made, the interface circuit design can be carried out again, the configuration data can be uploaded again, and then the steps are sequentially executed downwards.
At present, embedded system application development mainly realizes peripheral interface state change through chip programming so as to be applied to different occasions. As can be seen from the description of the above specific implementation process, the virtual experiment teaching system provided by the present invention adopts a virtual experiment method in which experiment codes are directly run on an actual chip, and the pin state is monitored and the running effect is displayed on a virtual device, so as to meet the requirement of the embedded system for application experiment simulation.
Compared with the prior art, the invention uses the WEB browser to complete the virtual experiment simulation on line, does not need to install or use other simulation software, and is more convenient to use. In addition, the system only monitors the state change of the chip pins, and the selection of the chip is not limited. Therefore, various embedded chips can be additionally configured to realize application virtual simulation of various chips, and the applicability is stronger.
As the preferred scheme of the invention, users can be divided into student users and teacher users, the student users can also submit the experiment homework in the virtual experiment interface, namely upload interface circuit design and experimental program data to the WEB server; the teacher user can call the experiment homework data submitted by the students, automatically associate a core monitoring terminal to perform virtual operation, and read the experiment homework score according to the experiment effect.
As another preferable scheme of the invention, the student user can also perform an experimental examination in the virtual experimental interface, namely the student user uploads interface circuit design and experimental program data of specified examination questions to the WEB server within a specified time; the teacher user can monitor the time when the students complete the virtual experiment, transfer the experiment examination data submitted by the students, automatically associate a core monitoring terminal to perform virtual operation, and read the experiment examination scores according to the experiment effect.
According to the two optimal schemes, the management of teachers on virtual experiment homework and virtual experiment examinations is increased, and the functions of the virtual experiment teaching system are enriched.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, and all technical solutions belonging to the principle of the present invention belong to the protection scope of the present invention. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (4)
1. The utility model provides a virtual experiment system towards embedded system application teaching which characterized in that: the system comprises a WEB server and a plurality of core monitoring terminals; the WEB server is interconnected with each core monitoring terminal through a local area network; the core monitoring terminal consists of a monitoring module and an experiment module;
the main control chip of the experiment module is an embedded system chip which needs to be learned in the virtual teaching experiment, and all universal interface pins of the embedded system chip are connected to the main control chip pins of the monitoring module and are completely monitored by the monitoring module; the number of universal interface pins of the main control chip of the monitoring module is more than that of the main control chip of the experimental module;
the operation process of the virtual experiment system is as follows:
step 1, a user accesses the WEB server by using a browser, enters a virtual experiment interface after information verification is completed, and the server is associated with a core monitoring terminal;
step 2, a user designs an interface circuit in the virtual experiment interface, including adding an embedded system chip and virtual external equipment, and configuring the interface pin connection condition between the chip and the virtual external equipment; uploading the configuration information to a WEB server after the configuration is finished, and transmitting interface configuration information to be monitored to a monitoring module of an associated core monitoring terminal by the server;
step 3, a user uses IDE software of the embedded system to carry out experimental programming design and generate new firmware data; then uploading the data in the virtual experiment interface, and then forwarding the data to an experiment module of an associated core monitoring terminal through a WEB server;
step 4, after receiving the new firmware data, the experiment module stores the new firmware data into a code area of the embedded system chip to automatically complete firmware updating; after the update is finished, firmware update finishing information is sent to the user through the WEB server;
step 5, after receiving the firmware updating completion information in the virtual experiment interface, a user starts a virtual experiment system to run, and the WEB server sends starting command information to a monitoring module of the associated core monitoring terminal; after the monitoring module receives the starting command, restarting the experiment module, and then starting to run the firmware which is newly uploaded by the user by the experiment module;
step 6, the monitoring module monitors the state of the corresponding interface pin in real time according to the interface configuration information to be monitored received in the step 2, generates interface monitoring real-time information and uploads the interface monitoring real-time information to the WEB server; after receiving the information, the WEB server changes the display effect of the virtual external equipment so as to simulate the operation effect of the experimental program and provide the user for browsing and observation;
7, in the virtual operation process, if the virtual external equipment comprises the input equipment, the user can operate and change the state of the input equipment in the virtual experiment interface; at the moment, the WEB server sends input equipment state information to the monitoring module according to the user operation condition; the monitoring module generates required signals on corresponding pins after receiving the signals so as to simulate the operation effect of the input equipment and detect the input signals during the operation of the experiment module;
step 8, repeatedly executing the steps 6 to 7 until the user sends the information of the command of stopping virtual operation in the virtual experiment interface, and ending the repeated circulation process;
9, if the user exits from the virtual experiment interface or does not operate the virtual experiment interface for a long time, the WEB server disconnects the association between the user and the core monitoring terminal and waits for the associated use of other users;
step 10, if the user needs to modify the code to perform virtual simulation again, returning to the step 3; and if the user needs to modify the interface circuit or make new experimental contents, returning to the step 2 and re-designing the interface circuit.
2. The virtual experiment system for embedded system application teaching of claim 1, wherein: the users may be divided into student users and teacher users.
3. The virtual experiment system for embedded system application teaching of claim 2, wherein: the student user can submit experiment homework in the virtual experiment interface, namely, interface circuit design and experiment program data are uploaded to a WEB server; the teacher user calls the experiment homework data submitted by the students, automatically associates a core monitoring terminal to perform virtual operation, and reads the experiment homework score according to the experiment effect.
4. The virtual experiment system for embedded system application teaching according to claim 2 or 3, wherein: the student user can perform experimental examination in the virtual experimental interface, namely the student user uploads interface circuit design and experimental program data of specified examination questions to the WEB server within a specified time; the teacher user monitors the time when the students complete the virtual experiment, calls experiment examination data submitted by the students, automatically associates a core monitoring terminal to perform virtual operation, and reads the experiment examination scores according to the experiment effect.
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Application publication date: 20210115 |