CN213277132U - Experiment teaching device for electronic circuit - Google Patents
Experiment teaching device for electronic circuit Download PDFInfo
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- CN213277132U CN213277132U CN202022215294.3U CN202022215294U CN213277132U CN 213277132 U CN213277132 U CN 213277132U CN 202022215294 U CN202022215294 U CN 202022215294U CN 213277132 U CN213277132 U CN 213277132U
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Abstract
The utility model provides an experiment teaching device for electronic circuit belongs to teaching technical field. It has solved the inconvenient problem that just influences experiment teaching efficiency of current technical operation. The experimental teaching device for the electronic circuit comprises a measurement and control device and a mobile client terminal, wherein the measurement and control device comprises a controller, a power supply output interface, a voltage and current meter, a function signal generator, an oscilloscope and a measurement module which are arranged on a circuit board, the voltage and current meter, the function signal generator, the oscilloscope and the measurement module are connected with the controller, the mobile client terminal is in communication connection with the controller, and comprises a control module, a data display module and a data input module, wherein the data display module is used for displaying experimental data acquired by the voltage and current meter, the oscilloscope and the measurement module; the controller is used for uploading experimental data and controlling the function signal generator to output corresponding waveforms according to the control instructions output by the control module. The utility model discloses can improve experiment teaching efficiency.
Description
Technical Field
The utility model belongs to the technical field of the teaching, a an experiment teaching device for electronic circuit is related to.
Background
The experimental operation is an important ring which can not be obtained in science and technology teaching. In the fields of electronic information engineering, communication engineering, automation, electronic measurement, electronic science and technology, mechano-electronics and the like, many courses need to develop an experimental teaching link based on the construction of an electronic circuit, and the link specifically comprises the steps of circuit design and simulation, electronic circuit construction, experimental data acquisition and verification, experimental report filling and the like.
At present, domestic experimental teaching is basically realized by a traditional experimental mode. An experimenter needs to build a circuit on site in a laboratory to carry out measurement and test, and the time consumption is long; the time for teachers and experimenters to develop discussion is short, and the experimenters are not favorable for developing some independently designed experiments. In addition, the experiment box configured in a common laboratory has a modularized circuit structure and an immobilized interface form, and an experimenter needs to carry out experiments step by step; the experimenter has insufficient perceptual knowledge on the circuit design and composition, and the effect of the course experiment in the experimenter culture process is weakened; in addition, in the experimental process, various instruments and meters are required to be operated to acquire data, such as an oscilloscope, a signal source, a universal meter, a direct-current stabilized power supply and the like, and the instruments and meters are generally single-function universal equipment, so that most of space of a laboratory is occupied during experiments, and the experimental operation is very inconvenient.
In recent years, an experiment platform integrated with a virtual instrument is adopted in an electronic circuit experiment to replace a conventional instrument, for example, an experiment universal instrument system disclosed in Chinese patent document, the invention combines a function signal generator, a voltmeter, an ammeter and a USB power supply current on the basis of a USB virtual oscilloscope, so that the basic instrument in the teaching process is combined in a multi-azimuth and multi-functional virtual integrated manner, the management of instrument equipment is reduced, but the integrated instrument has incomplete functions, and during the experiment, other test instruments need to be connected externally for testing, and experimental data needs to be input manually, so that the problems of data counterfeiting or error recording and the like easily occur, the operation is inconvenient, and the experiment teaching efficiency is influenced.
Disclosure of Invention
The utility model discloses there is above-mentioned problem to current technique, provides an experiment teaching device for electronic circuit, and its technical problem that will solve is: how to improve the efficiency of experimental teaching.
The utility model discloses a following technical scheme realizes: the utility model provides an experiment teaching device for electronic circuit, including measurement and control equipment and with the mobile client terminal that measurement and control equipment connects, measurement and control equipment including set up on the circuit board controller and with volt ammeter, function signal generator and oscilloscope that the controller is connected, mobile client terminal carries out the communication with the controller and is connected, measurement and control equipment still including set up on the circuit board be used for with the power output interface that mobile client terminal is connected and with the measuring module that is used for measuring resistor or diode that the controller is connected, mobile client terminal includes: the data display module is used for displaying the experimental data collected by the voltage ammeter, the oscilloscope and the measurement module; the data input module is used for automatically inputting or manually inputting experimental data according to an interface of the data display module; the control module is used for outputting a control instruction according to an interface of the data display module; the controller is used for uploading experimental data and controlling the function signal generator to output corresponding waveforms according to the control instructions output by the control module.
The working principle of the experimental teaching device for the electronic circuit is as follows: an electronic circuit for experiments is built on the bread board, a power supply output interface of the measurement and control equipment is connected with a voltage input port of the electronic circuit on the bread board to provide working voltage for the electronic circuit on the bread board, and the measurement and control equipment is connected with the mobile client terminal and used for obtaining power supply output from the mobile client terminal interface. According to the experimental requirements, a function signal generator, a voltage ammeter or a measurement module in the measurement and control equipment are connected to a corresponding detection position of a bread board, the corresponding action is carried out on an interface of a data display module in a mobile client terminal to start the experiment and control the output waveform of the function signal generator, and control instructions are transmitted to a controller of the measurement and control equipment through the control module; some data may also be manually entered via the data entry module. Can accomplish a plurality of basic experiments in the electronic class course teaching experiment through this experiment teaching device, it is multiple functional, need not to join in marriage the instrument of other single functions again, the experimenter can develop electronic class basic course anytime and anywhere, and the experiment operation is convenient, can input formation experiment report automatically to the data of gathering, has simplified the operation of experimenter and has increased the authenticity of data, and experimental efficiency is higher.
In the above experimental teaching device for electronic circuits, the measurement and control equipment further includes a constant current source circuit disposed on the circuit board and connected to the controller. The application of constant current source circuit can export stable electric current, for the experiment circuit provides the required electric current of experiment, and the experimental function is more complete, can further improve experimental efficiency.
In the above experimental teaching device for electronic circuits, the measurement and control equipment further includes an audio output module and a pulse button, which are arranged on the circuit board and connected with the controller. The audio output module can play audio contents pre-stored in the controller, such as songs, broadcasts and the like; the switching of the audio contents pre-stored in the controller can be controlled by the pulse button.
In the experimental teaching device for electronic circuits, the mobile client terminal further comprises a digital display module for displaying a digital switch, a digital LED and a nixie tube, and the digital display module is connected with the control module. The digital display module is arranged, so that the experimental items are enriched, and the experimental efficiency is improved conveniently.
In foretell an experiment teaching device for electronic circuit, experiment teaching device still includes cloud experiment management server, cloud experiment management server with mobile client terminal carries out wireless data transmission, cloud experiment management server is including being used for carrying out the receiving module that acquires, the experiment report management module that is used for carrying out classification management with each experiment report according to the experiment project and the module of grading that is used for carrying out automatic grading to the experiment report to each experiment report that a plurality of mobile client terminal generated. The teacher can look over experimenter's experiment report through cloud experiment management server to can grade each experimenter's experiment report through the module of grading, the automatic score mark and the concrete condition of grading of acquireing the experiment, like accuracy, the completion degree of experimental data etc. have reduced the work degree of difficulty for the teacher, have improved the efficiency of experiment teaching.
In foretell an experiment teaching device for electronic circuit, measurement and control equipment is still including setting up the USB commentaries on classics serial module on the circuit board, USB commentaries on classics serial module respectively with the controller with power output interface connects, the controller carries out the communication through USB commentaries on classics serial module and mobile client terminal and is connected.
In foretell an experiment teaching device for electronic circuit, measurement and control equipment is still including setting up the power conversion module on the circuit board, USB changes serial ports module and power output interface connection through power conversion module, constant current source circuit is connected with power conversion module. The power supply conversion module can enable the power supply output interface to output different voltages, such as +/-9V, + 5V and +3.3V, and provide power supplies for different experimental circuits.
In foretell an experiment teaching device for electronic circuit, measurement and control equipment is including the fixed circuit board one and the circuit board two of placing from top to bottom, be equipped with volt ammeter, function signal generator, constant current source circuit, audio output module and pulse button on the circuit board one, be equipped with controller, power conversion module, power output interface and USB commentaries on classics serial ports module on the circuit board two.
In the above experimental teaching device for electronic circuits, the controller is an STM32 single chip microcomputer.
In the experimental teaching device for electronic circuits, the mobile client terminal is a mobile phone, a tablet, a notebook computer or a PC. Taking a notebook computer as an example, the data display module is a screen, the data input module is a keyboard, and the control module is a CPU of the notebook computer.
In the above experimental teaching device for an electronic circuit, the measurement module includes a gear selection button, a resistance measurement interface, and a diode measurement interface. The gear selection button can select different resistance values and select diode measurement or resistance measurement, so that the function is more comprehensive, and the experiment efficiency is higher.
In the above-described experiment teaching apparatus for an electronic circuit, the voltmeter and the ammeter may include a voltmeter and an ammeter.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses on the basis of integrated volt ampere meter, oscilloscope, function signal generator's measurement and control equipment, increased functions such as resistance detection, audio output and constant current source output for the perfection more of experiment teaching function has reduced the extra use and the management of instrument and equipment, has improved teaching efficiency.
2. The utility model discloses can carry out automatic record to experimental data to can carry out automatic scoring to each experimenter's experimental report, it is more convenient that the experimenter experiments, and data are more true, further improve the efficiency of experiment teaching.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a measurement and control device; 11. a controller; 12. a voltmeter; 13. an ammeter; 14. A function signal generator; 15. a power output interface; 16. an oscilloscope; 17. a USB-to-serial port module; 18. a power conversion module; 19. an audio output module; 110. a constant current source circuit; 111. a measurement module; 111a, gear selecting keys; 111b, a resistance measurement interface; 111c, a diode measurement interface; 112. a pulse button; 2. a mobile client terminal; 21. a data input module, 22 and a data display module; 23. a control module; 24. a digital display module; 3. a cloud experiment management server; 31. a receiving module; 32. an experiment report management module; 33. and a scoring module.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the experimental teaching device for electronic circuits includes a measurement and control device 1 and a mobile client terminal 2 connected to the measurement and control device 1, the measurement and control device 1 includes a controller 11 disposed on a circuit board, a power output interface 15 for connecting to the mobile client terminal 2, a voltage/current meter 13 connected to the controller 11, a function signal generator 14, an oscilloscope 16, and a measurement module 111 for measuring a resistor or a diode, the mobile client terminal 2 is in communication connection with the controller 11, and the mobile client terminal 2 includes: the data display module 22 is used for displaying the experimental data collected by the voltage ammeter 13, the oscilloscope 16 and the measurement module 111; a data input module 21 for automatically or manually inputting experimental data according to the interface of the data display module 22; a control module 23 for outputting a control instruction according to the interface of the data display module 22; the controller 11 is used for uploading experimental data and controlling the function signal generator 14 to output corresponding waveforms according to the control instruction output by the control module 23.
Preferably, the measurement and control device 1 further includes a constant current source circuit 110 disposed on the circuit board and connected to the controller 11. The application of the constant current source circuit 110 can output stable current, such as 5mA, so as to provide current required by the experiment for the experiment circuit, the experiment function is more complete, and the experiment efficiency can be further improved.
Preferably, the measurement and control device 1 further includes an audio output module 19 and a pulse button 112, which are disposed on the circuit board and connected to the controller 11. The audio output module 19 can play audio contents pre-stored in the controller 11, such as three songs; the switching of the audio contents pre-stored in the controller 11 can be controlled by the pulse button 112, such as pressing the pulse button 112 to switch the next song.
Preferably, the mobile client terminal 2 further comprises a digital display module 24 for displaying a digital switch, a digital LED and a nixie tube, and the digital display module 24 is connected with the control module 23. The digital display module 24 is arranged, so that the experimental items are enriched, and the experimental efficiency is improved conveniently.
As a preferable scheme, the experiment teaching device further includes a cloud experiment management server 3, the cloud experiment management server 3 performs wireless data transmission with the mobile client terminal 2, and the cloud experiment management server 3 includes a receiving module 31 for acquiring each experiment report generated by the plurality of mobile client terminals 2, an experiment report management module 32 for performing classification management on each experiment report according to an experiment project, and a scoring module 33 for automatically scoring the experiment report. The teacher can look over experimenter's experiment report through cloud experiment management server 3 to can grade each experimenter's experiment report through module 33 of grading, the automatic acquisition experiment score mark and the concrete condition of grading, like accuracy, the completion degree etc. of experimental data, reduce the work degree of difficulty for the teacher, improve the efficiency of experiment teaching.
As a preferred scheme, the measurement and control device 1 further includes a USB to serial port module 17 disposed on the circuit board, the USB to serial port module 17 is respectively connected to the controller 11 and the power output interface 15, and the controller 11 is in communication connection with the mobile client terminal 2 through the USB to serial port module 17.
As a preferred scheme, the measurement and control device 1 further includes a power conversion module 18 disposed on the circuit board, the USB to serial port module 17 is connected to the power output interface 15 through the power conversion module 18, and the power conversion module 18 is connected to the constant current source circuit 110. The power conversion module 18 can enable the power output interface 15 to output different voltages, such as ± 9V, ± 5V and +3.3V, to provide power supplies for different experimental circuits.
As a preferred scheme, the measurement and control device 1 includes a first circuit board and a second circuit board, which are vertically and fixedly disposed, the first circuit board is provided with a voltage ammeter 13, a function signal generator 14, a constant current source circuit 110, an audio output module 19 and a pulse button 112, and the second circuit board is provided with a controller 11, a power conversion module 18, a power output interface 15 and a USB serial port conversion module 17.
Preferably, the controller 11 is an STM32 single chip microcomputer.
Preferably, the mobile client terminal 2 is a mobile phone, a tablet, a notebook computer or a PC. Taking a notebook computer as an example, the data display module 22 is a screen, the data input module 21 is a keyboard, and the control module 23 is a CPU of the notebook computer.
Preferably, the measuring module 111 includes a gear selection button 111a, a resistance measuring interface 111b, and a diode measuring interface 111 c. The gear selection button 111a can select different resistance values and select diode measurement or resistance measurement, so that the function is more comprehensive, and the experimental efficiency is higher.
Preferably, the voltmeter 13 includes a voltmeter 12 and an ammeter 13.
The working principle of the experimental teaching device for the electronic circuit is as follows: an electronic circuit for experiments is built on the bread board, the measurement and control equipment 1 is connected with the mobile client terminal 2 through the USB-to-serial port module 17, when the measurement and control equipment 1 is communicated with the mobile client terminal 2, the output voltage of the USB interface of the mobile client terminal 2 is transmitted to the power output interface 15 through the USB-to-serial port module 17 and the power conversion module 18, the power output interface 15 in the measurement and control equipment 1 is connected with a voltage input port of the electronic circuit on the bread board, and working voltage is provided for the electronic circuit on the bread board.
According to the electronic circuit experiment, the function signal generator 14, the voltage ammeter 13 or the measuring module 111 in the measuring and controlling device 1 are connected to the corresponding detecting position of the bread board, the output waveform of the experimental and control function signal generator 14 is turned on by performing a corresponding action on the interface of the data display module 22 in the mobile client terminal 2, and the control instructions are transmitted to the controller 11 of the measurement and control equipment 1 through the control module 23, the controller 11 controls the corresponding instrument to act, during the experiment, the data display module 22 displays the experiment data collected by the voltage ammeter 13, the oscilloscope 16 and the measurement module 111, the measured experimental data can be automatically recorded into the experimenter's experimental report through the data input module 21, such as measured voltage values, current values, waveforms, resistance values, voltage drops across diodes, etc.; some data may also be manually entered via the data entry module 21. Taking a bipolar amplifying circuit as an example, an experimenter establishes the bipolar amplifying circuit on a bread board through corresponding components, a power output interface 15 in a measurement and control device 1 is connected with an input voltage end of the bipolar amplifying circuit, a function signal generator 14 is connected with a signal input end of the bipolar amplifying circuit, a signal output end of the bipolar amplifying circuit is connected with an oscilloscope 16, a data input module 21 in a mobile client terminal 2 selects an output waveform of the function signal generator 14, such as outputting a square wave, a triangular wave or a sawtooth wave, a control module 23 controls the function signal generator 14 to perform corresponding actions according to the output waveform according to the selection output control signal of the data input module 21, a data display module 22 in the mobile client terminal 2 displays the waveform acquired by the oscilloscope 16, specifically, the waveform can display the output waveform and the amplified waveform, upon completion of the experiment, an experiment report may be generated and synchronized to the experiment management server through operation of the data input module 21.
The mobile client terminal 2 acquires experiment data and synchronizes the experiment data to the cloud experiment management server 3, the cloud experiment management server 3 corresponds to a plurality of mobile client terminals 2, wherein the receiving module 31 acquires experiment reports of experimenters from each mobile client terminal 2 and transmits the experiment reports to the experiment report management module 32, and the experiment report management module 32 manages the experiment reports of each experimenter and places the experiment reports of different experimenters in the same category; the module 33 of grading is criticized automatically to the data on the experimental report and is reachd the grade, and the teacher also can look over experimenter's experiment grade and experimental data correctly or not according to the module 33 of grading, and where appears the mistake, the teacher of being convenient for can know every experimenter's experimental conditions, can analyze and guide the experimental problem to the experimental report more rapidly through the module 33 of grading, and the experiment teaching grade is more convenient, and teaching efficiency is higher.
The application of this experiment teaching device provides supplementary for traditional experimental mode for the student can develop the experiment preview extracurricularly, with bread board and corresponding components and parts, from beginning independently designing and building the circuit, recycles the function that this experiment teaching device has, accomplishes conventional experiment data measurement, circuit function test. In a laboratory, a teacher can let students use laboratory equipment to measure and test the built circuit again; or after the circuit parameters are modified, the measurement and the test are carried out again. The experiment teaching device can be conveniently used for students to carry out experiments of electronic basic courses anytime and anywhere, is high in experiment efficiency, can greatly expand the space and time of student experiments, improves the perceptual knowledge of students on circuit design and composition, and enhances the ability of students to find and solve problems.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides an experiment teaching device for electronic circuit, including measurement and control equipment (1) and with mobile client terminal (2) that measurement and control equipment (1) is connected, measurement and control equipment (1) including set up on the circuit board controller (11) and with voltmeter (12), ampere meter (13), function signal generator (14) and oscilloscope (16) that controller (11) are connected, mobile client terminal (2) carry out the communication with controller (11) and are connected, a serial communication port, measurement and control equipment (1) still including set up on the circuit board be used for with mobile client terminal (2) be connected power output interface (15) and with be used for measuring resistor or diode's measuring module (111) that controller (11) are connected, mobile client terminal (2) include: the data display module (22) is used for displaying experimental data collected by the voltmeter (12), the ammeter (13), the oscilloscope (16) and the measurement module (111); a data input module (21) for automatically or manually inputting experimental data according to the interface of the data display module (22); a control module (23) for outputting a control instruction according to an interface of the data display module (22); the controller (11) is used for uploading experimental data and controlling the function signal generator (14) to output corresponding waveforms according to the control instructions output by the control module (23).
2. Experimental teaching device for electronic circuits according to claim 1, characterized in that the measuring and control equipment (1) further comprises a constant current source circuit (110) arranged on a circuit board and connected to the controller (11).
3. Experiment teaching device for electronic circuits according to claim 2, characterized in that said measurement and control equipment (1) further comprises an audio output module (19) and a pulse button (112) arranged on a circuit board and connected with said controller (11).
4. Experiment teaching device for electronic circuits according to claim 1, 2 or 3, characterized in that said measuring module (111) comprises a gear selection key (111a), a resistance measuring interface (111b) and a diode measuring interface (111 c).
5. Experiment teaching device for electronic circuits according to claim 1 or 2 or 3, characterized in that the mobile client terminal (2) further comprises a digital display module (24) for displaying a digital switch, a digital LED and a nixie tube, the digital display module (24) being connected to the control module (23).
6. Experiment teaching device for electronic circuits according to claim 1 or 2 or 3, characterized in that it further comprises a cloud experiment management server (3), said cloud experiment management server (3) performs wireless data transmission with said mobile client terminals (2), said cloud experiment management server (3) comprises a receiving module (31) for acquiring each experiment report generated by several mobile client terminals (2), an experiment report management module (32) for managing each experiment report by classification according to experiment items, and a scoring module (33) for automatically scoring experiment reports.
7. The experiment teaching device for the electronic circuit according to claim 3, wherein the measurement and control equipment (1) further comprises a USB-to-serial port module (17) arranged on the circuit board, the USB-to-serial port module (17) is respectively connected with the controller (11) and the power output interface (15), and the controller (11) is in communication connection with the mobile client terminal (2) through the USB-to-serial port module (17).
8. The experimental teaching device for electronic circuits according to claim 7, wherein the measurement and control equipment (1) further comprises a power conversion module (18) disposed on the circuit board, the USB-to-serial port module (17) is connected to the power output interface (15) through the power conversion module (18), and the constant current source circuit (110) is connected to the power conversion module (18).
9. The experimental teaching device for electronic circuits according to claim 8, wherein the measurement and control equipment (1) comprises a first circuit board and a second circuit board which are fixedly placed from top to bottom, the first circuit board is provided with a voltmeter (12), an ammeter (13), a function signal generator (14), a constant current source circuit (110), an audio output module (19) and a pulse button (112), and the second circuit board is provided with a controller (11), a power conversion module (18), a power output interface (15) and a USB-to-serial port module (17).
10. Experiment teaching device for electronic circuits according to claim 1 or 2 or 3, characterized in that said mobile client terminal (2) is a mobile phone, tablet, notebook or PC.
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| CN202022215294.3U CN213277132U (en) | 2020-09-30 | 2020-09-30 | Experiment teaching device for electronic circuit |
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| CN202022215294.3U CN213277132U (en) | 2020-09-30 | 2020-09-30 | Experiment teaching device for electronic circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089169A (en) * | 2021-12-27 | 2022-02-25 | 上海菱沃铂智能技术有限公司 | Multifunctional integrated circuit experiment test equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089169A (en) * | 2021-12-27 | 2022-02-25 | 上海菱沃铂智能技术有限公司 | Multifunctional integrated circuit experiment test equipment |
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