CN102654951A

CN102654951A - Automatic electronic experimental teaching system

Info

Publication number: CN102654951A
Application number: CN2012101053793A
Authority: CN
Inventors: 张玉学; 颜廷秦; 俞兴明; 崔志磊; 陶文林; 过怡
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2012-04-12
Filing date: 2012-04-12
Publication date: 2012-09-05
Anticipated expiration: 2032-04-12
Also published as: CN102654951B

Abstract

The invention belongs to the technical field of electronic teaching experiment equipment, and provides an automated electronic teaching experiment system, which is composed of a standard experiment module, a control body module with a single-chip microcomputer as the core, and a PC. Call up the corresponding project menu on the machine, and students connect the wiring on the experimental project board according to the wiring steps prompted by the PC. And current data, compared with the pre-stored data in the PC, it can automatically judge whether the experimental results are correct, and the experimental report can be automatically generated after the experiment is over, and can be printed out through the printer. The teacher only needs to input the preset experimental items in the PC in advance Programs and data can be used to develop new experimental projects. The system has flexible design, wide measurement range, accurate detection, and high degree of automation, which improves the efficiency of experimental teaching.

Description

A kind of robotization electronic instruction experimental system

Technical field

The invention belongs to electronic instruction experimental apparatus technical field, relate in particular to a kind of robotization electronic instruction experimental system.

Background technology

At present, experimental project is a lot of in the domestic electronics professional teaching, and the different experiments project need be used different experimental apparatuss and equipment, and is separate, and automaticity is low.

Summary of the invention

The invention provides a kind of robotization electronic instruction experimental system; It is a lot of to be intended to solve in the present domestic electronics professional teaching experimental project; The different experiments project need be used different experimental apparatuss and equipment, the problem separate between experimental apparatus and the equipment, that automaticity is low.

The object of the present invention is to provide a kind of robotization electronic instruction experimental system, said robotization electronic instruction experimental system comprises:

The standard test module is used to carry out different experimental projects, obtains the measurement point signal of the project that experimentizes, and said measurement point signal is exported;

The control body module is connected with said standard test module, is used to receive the measurement point signal of said standard test module output, and said measurement point signal is handled and exported;

PC is connected with said control body module, is used to receive the measurement point signal of after said control body resume module, exporting; Menu and data according to the experimental project that prestores; Automatically prompting experimental wiring and judge whether the wiring result is correct, and the electric current and voltage data of key test point show during to the energising experiment, through comparing with the result that prestores; Make the judgement of correctness, and form laboratory report automatically.

Further, said robotization electronic instruction experimental system also comprises: power module, printer;

Said power module is connected with said standard test module, control body module respectively, and said PC is connected with said printer;

Said power module is that 220V/17V * 2 transformers of 30W, stabilivolt, model that model is MC7812 are that 7912,7805 and 7905 integrated regulator connects and composes by power.

Further; Said robotization electronic instruction experimental system comprises several standard test modules that can carry out the different experiments project; Said standard test module is connected with said control body module through the measuring-signal output interface, and said measuring-signal output interface adopts PIN 26 pin biserial connectors.

Further, said control body module further comprises: photoelectricity isolated location, multi-way switch, analog-to-digital conversion module, single-chip microcomputer, communication module;

Said photoelectricity isolated location is connected with said multi-way switch, and said multi-way switch is connected with said analog-to-digital conversion module, and said analog-to-digital conversion module is connected with said single-chip microcomputer, and said single-chip microcomputer is connected with said communication module;

It is the octuple analog switch of CD4051BCN that said multi-way switch adopts model; It is the analog to digital converter of MAX197 that said analog-to-digital conversion module adopts model; It is the microprocessor of AT89C51 that said single-chip microcomputer adopts model, and it is the chip of TC232 that said communication module adopts model.

Further, said standard test module is being switched on when experiment, and PC can show the voltage and the current data of crucial test point, and compares with the result that prestores, and makes the judgement of correctness.

Further, be preset with interface program in the said PC, can form laboratory report automatically, and print through printer.

Further; Said robotization electronic instruction experimental system is when experimental project newly developed; As long as at the newly-increased experimental project menu of PC, and the correlation parameter of experimental project is set in advance, the new experimental project of the item enterprising row of keevil that can be in new standard test module.

Robotization electronic instruction experimental system provided by the invention is that control core body module, PC three parts are formed by the standard test module, with the single-chip microcomputer, and different standard test modules adopts unified measuring-signal output interface to be connected with the control body module; The student inserts the standard test module when experiment, and on PC, accesses corresponding project menu, and the student is according to wiring step wiring on the experimental project plate of PC prompting; Wiring state send PC to show to judge whether wiring is correct after detecting, and can also detect voltage and the current data of setting test point automatically during the energising experiment; Compare with the data that prestore in the PC; Automatically whether the judgment experiment result is correct, and experiment finishes the back system can form laboratory report automatically, and prints output through printer; The photoelectricity isolated location is arranged between the interface of standard test module and control body module; Protected the safety of control body module and PC effectively, for experimental project newly developed, as long as the teacher is experimental project program and the data that input is preset in PC in advance; Can develop the experimental project that makes new advances; This system design is flexible, measurement range is wide, detection is accurate, automaticity is high, has improved experimental teaching efficient, has stronger popularization and using value.

Description of drawings

Fig. 1 is the structured flowchart of the robotization electronic instruction experimental system that provides of the embodiment of the invention;

Fig. 2 is the key wiring diagram of the measuring-signal output interface that provides of the embodiment of the invention;

Fig. 3 is the key wiring diagram of the octuple analog switch one of the multi-way switch that provides of the embodiment of the invention;

Fig. 4 is the key wiring diagram of the octuple analog switch two of the multi-way switch that provides of the embodiment of the invention;

Fig. 5 is the key wiring diagram of the octuple analog switch three of the multi-way switch that provides of the embodiment of the invention;

Fig. 6 is the key wiring diagram of the analog-to-digital conversion module that provides of the embodiment of the invention;

Fig. 7 is the key wiring diagram of the single-chip microcomputer that provides of the embodiment of the invention;

Fig. 8 is the key wiring diagram of the communication module that provides of the embodiment of the invention.

Embodiment

In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further specified below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in the qualification invention.

Fig. 1 shows the structure of the robotization electronic instruction experimental system that the embodiment of the invention provides.For the ease of explanation, only show the part relevant with the present invention.

This robotization electronic instruction experimental system comprises:

Standard test module 11 is used to carry out different experimental projects, obtains the measurement point signal of the project that experimentizes, and the measurement point signal is exported;

Control body module 12 is connected with standard test module 11, is used for the measurement point signal of acceptance criteria experiment module 11 outputs, and the measurement point signal is handled and exported;

PC 13 is connected with control body module 12, is used to receive the measurement point signal of output after control body module 12 is handled; Menu and data according to the experimental project that prestores; Automatically prompting experimental wiring and judge whether the wiring result is correct, and the electric current and voltage data of key test point show during to the energising experiment, through comparing with the result that prestores; Make the judgement of correctness, and form laboratory report automatically.

Further, this robotization electronic instruction experimental system also comprises: power module 14, printer 15;

Power module 14 is connected with standard test module 11, control body module 12 respectively, and printer 15 is connected with PC 13;

Power module 14 is that 220V/17V * 2 transformers of 30W, stabilivolt, model that model is MC7812 are that 7912,7805 and 7905 integrated regulator connects and composes by power.

As shown in Figure 2; Further; This robotization electronic instruction experimental system comprises several standard test modules 11 that can carry out the different experiments project; Standard test module 11 is connected with control body module 12 through measuring-signal output interface 17, and measuring-signal output interface 17 adopts PIN 26 pin biserial connectors.

Further, control body module 12 further comprises: photoelectricity isolated location 121, multi-way switch 122, analog-to-digital conversion module 123, single-chip microcomputer 124, communication module 125;

Photoelectricity isolated location 121 is connected with multi-way switch 122, and multi-way switch 122 is connected with analog-to-digital conversion module 123, and analog-to-digital conversion module 123 is connected with single-chip microcomputer 124, and single-chip microcomputer 124 is connected with communication module 125;

Like Fig. 3, Fig. 4 and shown in Figure 5, multi-way switch 122 adopts three octuple analog switches that model is CD4051BCN;

As shown in Figure 6, it is the analog to digital converter of MAX197 that analog-to-digital conversion module 123 adopts model;

As shown in Figure 7, it is the microprocessor of AT89C51 that single-chip microcomputer 124 adopts model;

As shown in Figure 8, it is the chip of TC232 that communication module 125 adopts model.

Further, standard test module 11 is being switched on when experiment, and PC 13 can show the voltage and the current data of crucial test point, and compares with the result that prestores, and makes the judgement of correctness.

Further, be preset with interface program in the PC 13, can form laboratory report automatically, and print through printer 15.

Further; This robotization electronic instruction experimental system is when experimental project newly developed; As long as at the newly-increased experimental project menus of PC 13, and the correlation parameter of experimental project is set in advance, the new experimental project of the item enterprising row of keevil that can be in new standard test module 11.

Below in conjunction with accompanying drawing and specific embodiment application principle of the present invention is further described.

This robotization electronic instruction experimental system comprises: standard test module 11, control body module 12 and PC 13; Standard test module 11 is connected with control body module 12 through unified measuring-signal output interface 17; Be provided with photoelectricity isolated location 121, multi-way switch 122, analog-to-digital conversion module 123, communication module 125, single-chip microcomputer 124 in the control body module 12; Multi-way switch 122 receives single-chip microcomputer 124 controls, and the signal to be measured of acceptance criteria experiment module 11 inputs, the output terminal of the input termination multi-way switch 122 of analog-to-digital conversion module 123; The output terminal of analog-to-digital conversion module 123 inserts single-chip microcomputer 124; Single-chip microcomputer 124 output serial ports are connected with PC 13 through communication module 125, and PC 13 shows that with data processed result power module 14 is responsible for the required various DC voltages of generation total systems; Pay standard experiment module 11, control body module 12 make the total system operate as normal.

The purpose of multi-way switch 122 designs is to realize the measurement of more check point signals; Owing to adopted three octuple analog switches; It can be divided into one group of three signal to signal to be measured, and to realize the inspection of standard test module 11 circuit that the student builds, analog-to-digital conversion module 123 receives the signal of multi-way switch 122; Digital signal after the conversion is sent into single-chip microcomputer 124; Be the chief component of system's operate as normal, single-chip microcomputer 124 is uploaded to PC 13 to testing result, and in PC 13, further handles.

Earlier on PC 13, access corresponding experimental project menu during student experimenting, PC 13 can point out the student to carry out wiring step by step automatically, and whether after per step has connect line, it is correct to detect wiring automatically; Wiring is accomplished when switching on experiment; The voltage of crucial test point and the numerical value of electric current on the automatic examination criteria experiment module 11 of ability; And can on PC 13, show; And with PC 13 experimental project programs in preset correct data compare, whether correct, improved conventional efficient if making the experimenter promptly and accurately understand the result; During experimental project newly developed, if in PC 13 softwares newly-increased experimental project menu, and experiment parameter is set in advance, can on the experimental project plate of new standard test module 11, carry out new projects' experiment, it is convenient to develop new experimental project; Design interface program on PC 13 can form laboratory report automatically, and can print through printer 15.

The robotization electronic instruction experimental system that the embodiment of the invention provides is that control core body module 12, PC 13 3 parts are formed by standard test module 11, with single-chip microcomputer 124, and different standard test modules 11 adopt unified measuring-signal output interface 17 to be connected with control body module 12; The student inserts standard test module 11 when experiment, and on PC 13, accesses corresponding project menu, and the student is according to wiring step wiring on the experimental project plate of PC 13 promptings; Wiring state send PC 13 to show to judge whether wiring is correct after detecting, and can also detect voltage and the current data of setting test point automatically during the energising experiment; Compare with the data that prestore in the PC 13; Automatically whether the judgment experiment result is correct, and experiment can form laboratory report after finishing automatically, and prints output through printer 15; Photoelectricity isolated location 121 is arranged between the interface of standard test module 11 and control body module 12; Protected the safety of control body module 12 and PC 13 effectively, for experimental project newly developed, as long as the teacher is experimental project program and the data that input is preset in PC 13 in advance; Can develop the experimental project that makes new advances; This system design is flexible, measurement range is wide, detection is accurate, automaticity is high, has improved experimental teaching efficient, has stronger popularization and using value.

More than be merely preferred embodiment of the present invention,, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention not in order to restriction the present invention.

Claims

1. an automated electronic teaching experiment system, is characterized in that, described automated electronic teaching experiment system comprises:

The standard experiment module is used to carry out different experimental items, obtain the measurement point signals of the experimental items, and output the measurement point signals;

The control body module is connected with the standard experiment module, and is used for receiving the measurement point signal output by the standard experiment module, and processing and outputting the measurement point signal;

PC, connected with the control body module, used to receive the measuring point signal output after the processing of the control body module, according to the menu and data of the pre-stored experimental items, automatically prompting the experimental wiring and judging whether the wiring result is correct, and Display the voltage and current data of key test points during the power-on experiment, compare with the pre-stored results, make a correct judgment, and automatically form an experiment report.

2. automated electronic teaching experiment system as claimed in claim 1, is characterized in that, described automated electronic teaching experiment system also comprises: power supply module, printer;

The power supply module is connected with the standard experiment module and the control body module respectively, and the printer is connected with a PC;

The power supply module is composed of a 220V/17V×2 transformer with a power of 30W, a regulator tube of model MC7812, and voltage regulator integrated circuits of model 7912, 7805 and 7905.

3. automated electronic teaching experimental system as claimed in claim 1, is characterized in that, described automated electronic teaching experimental system comprises several standard experimental modules that can carry out different experimental items, and described standard experimental module communicates with by measuring signal output interface The control body modules are connected, and the measurement signal output interface adopts a PIN 26-pin double row connector.

4. The automated electronic teaching experiment system as claimed in claim 1, wherein the control body module further comprises: a photoelectric isolation unit, a multi-way switch, an analog-to-digital conversion module, a single-chip microcomputer, and a communication module;

The photoelectric isolation unit is connected to the multi-way switch, the multi-way switch is connected to the analog-to-digital conversion module, the analog-to-digital conversion module is connected to the single-chip microcomputer, and the single-chip microcomputer is connected to the communication module connected;

The multi-way switch adopts an eight-way analog switch whose model is CD4051BCN, the analog-to-digital conversion module adopts an analog-to-digital converter whose model is MAX197, the single-chip microcomputer adopts a microprocessor whose model is AT89C51, and the communication module adopts a model of TC232 chip.

5. automated electronic teaching experiment system as claimed in claim 1, is characterized in that, when described standard experiment module is carrying out electrification experiment, PC function can display the voltage of key test point and current data, and compare with pre-stored result , to make a correct or incorrect judgment.

6. The automated electronic teaching experiment system according to claim 1, wherein an interface program is preset in the PC, which can automatically form an experiment report and print it by a printer.

7. The automated electronic teaching experiment system according to claim 1, characterized in that, when the described automated electronic teaching experimental system newly develops experimental items, it only needs to add an experimental item menu on the PC, and pre-set the related items of the experimental items. parameter, you can start a new experiment project on the project board in the new standard experiment module.