CN104809946A - Intelligent teaching and checking system for electrical control experimental training - Google Patents
Intelligent teaching and checking system for electrical control experimental training Download PDFInfo
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- 238000012549 training Methods 0.000 title claims abstract description 76
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- 238000001303 quality assessment method Methods 0.000 claims description 4
- 208000033999 Device damage Diseases 0.000 abstract description 4
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- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
- G09B23/186—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits for digital electronics; for computers, e.g. microprocessors
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Abstract
The invention discloses an intelligent teaching and checking system for an electrical control experimental training. The intelligent teaching and checking system comprises an experimental training operating platform, a control unit and an upper computer, wherein the control unit is connected with the experimental training operating platform and the upper computer respectively; the control unit comprises an output display module; an experimental training project standard wiring data is preset in the upper computer; the control unit collects the actual wiring data of the experimental training operating platform and compares with the experimental training project standard wiring data, sends comparison result to the upper computer for performing wiring quality checking, and meanwhile sends a corresponding display signal to the output display module according to the comparison result to display the comparison result. The intelligent teaching and checking system for the electrical control experimental training has the advantages of being simple in structure, simple and convenient to operate, and capable of improving teaching efficiency and avoiding device damage.
Description
Technical field
The present invention relates generally to teaching equipment technical field, refers in particular to a kind of electrical control class experimental real-training intelligent tutoring and checking system.
Background technology
At present, Electrical Control Technology is applied widely in all kinds of automatic control system.In vast universities and colleges and all kinds of training organization, Electric Specialty has generally offered Electrical Control Technology correlated curriculum, the wherein experiment of typical electric control circuit, real training are then the requisite practices of Electrical Control Technology correlated curriculum, therefore, the research and development of the experiments supporting equipment of Electrical Control Technology correlated curriculum seem particularly important.But, comparatively traditional training method has been continued to use in current domestic experiment, Training Room mostly, namely Experiment teacher provides circuit diagram, device needed for student selects according to circuit diagram also uses wire to connect, be energized after student completes institute's link self-inspection test run after teacher's license, obviously, such flow process also exists great potential safety hazard.Because for institute's link, student is in learning phase, to knowwhy, line construction is all unfamiliar with, so be difficult to find problem when student carries out self-inspection, and when teacher's inspection, because time relationship, mostly just check whether its circuit exists short circuit, but the circuit of some complexity is to whether short circuit is then difficult to check out, teacher also can only rely on previous experiences to judge correcting errors of student institute link, if some gross error is not examined out carry out energising test run, its danger is well imagined, light then cause equipment to be damaged, heavy then personal safety accident occurs.If the experimental line of experiment instruction teacher to each experiment table position endures strict scrutiny, for the experimental line that some are slightly complicated, lose time very much undoubtedly, cause the experimental line of some students to can not get checking, instructing, teaching efficiency is not good enough.Meanwhile, because student is beginner, wiring technological level is lower, when experiment instruction teacher in the face of experimental line as cobweb time, often feel at a loss what to do, be difficult to put main threads in order, efficiency of teaching is not high.
In sum, the experiment of current Electrical Control Technology correlated curriculum, practice teaching ubiquity single to the detection methods of correcting errors of experimental line, hand inspection is unreliable and efficiency is on the low side, Experiment teacher instructs that burden is heavier and teaching efficiency is not good enough, it is multiple to various problems such as students practise effect curriculum test means to lack.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical matters existed for prior art, the invention provides a kind of structure simple, easy and simple to handle, can efficiency of teaching be improved and avoid the experimental real-training intelligent tutoring of electrical control class and the checking system of device damage.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
A kind of electrical control class experimental real-training intelligent tutoring and checking system, comprise experimental real-training operating platform, control module and host computer, described control module is connected with host computer with described experimental real-training operating platform respectively, described control module comprises output display module, experimental real-training project standard wired data is preset with in described host computer, described control module gathers the physical cabling data of experimental real-training operating platform and contrasts with experimental real-training project standard wired data, and comparing result is sent to host computer and carries out wiring quality examination, simultaneously send according to comparing result corresponding display to carry out comparing result display to output display module.
Further improvement as technique scheme:
Described host computer comprises wiring and instructs module, and described wiring is instructed module to send and instructed display to output display module progressively to show the wiring step of circuit on experimental real-training operating platform.
Described host computer also comprises wiring and to correct errors checking module, experimental real-training project physical cabling data and experimental real-training project standard wired data contrast by described wiring checking module of correcting errors, as both comparing results are not corresponding, then send corresponding display to output display module and carry out mistake display.
Described host computer also comprises line bank mismatch block, and described line bank mismatch block is corrected errors according to wiring the comparing result of checking module, send successively corresponding display to output display module by splicing ear inconsistent for comparing result by showing.
Described host computer comprises wiring quality evaluation module, and the physical cabling data on experimental real-training operating platform and experimental real-training project standard wired data are analyzed by described wiring quality evaluation module, obtains quality assessment report.
Described host computer comprises standard test project typing module, for experimental real-training project standard wired data is inputed to host computer and stores.
Described experimental real-training project standard wired data is the annexation in experimental real-training project between each electric device connection terminal.
Described output display module comprises multiple LED light, each terminals one_to_one corresponding on described LED light and experimental real-training operating platform.
Described control module is measured the resistance value between terminals each on experimental real-training operating platform by analog-to-digital conversion module.
Described control module is connected with described experimental real-training operating platform by two-way photoelectric isolation module.
Compared with prior art, the invention has the advantages that:
Electrical control class experimental real-training intelligent tutoring of the present invention and checking system, owing to adopting full-automatic guidance, can greatly improve experimental teaching efficiency, what alleviate teacher instructs burden, and the device damage can avoiding causing because of wrong line, has ensured the safety of experimenter.
Accompanying drawing explanation
Fig. 1 is framed structure schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Fig. 3 is modular structure schematic diagram of the present invention.
Fig. 4 is electrical block diagram of the present invention.
Fig. 5 is the structural representation of laboratory table in the present invention.
Number in the figure illustrates: 1, line bank; 2, pilot lamp; 3, wire casing; 4, panel; Electric device; 6, fenestra.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Figures 1 to 5, the electrical control class experimental real-training intelligent tutoring of the present embodiment and checking system, comprise experimental real-training operating platform, control module and host computer, wherein host computer is teacher's computers unit, control module is connected with teacher's computers unit with experimental real-training operating platform respectively, control module comprises output display module, wherein experimental real-training project standard wired data is delivered in control module by host computer, control module gathers experimental real-training project physical cabling data and contrasts with experimental real-training project standard wired data, and send according to comparing result corresponding display to carry out comparing result display to output display module.In the present embodiment, experimental real-training project physical cabling data are the annexation on experimental real-training operating platform between each connection terminal, are embodied in the resistance value between each connection terminal.Electrical control class experimental real-training intelligent tutoring of the present invention and checking system, owing to adopting full-automatic guidance, can greatly improve experimental teaching efficiency, what alleviate teacher instructs burden, and the device damage can avoiding causing because of wrong line, has ensured the safety of experimenter.
In the present embodiment, control module also comprises PIC single chip microcomputer, Keysheet module, analog-to-digital conversion module, photoelectric isolation module and communication module; Experimental real-training operating platform is made up of laboratory table and the device board etc. that comprises various electrical control device and wire casing and connection terminal; Wherein teacher's computers unit is positioned at teacher side, and control module is then placed on laboratory table, and teacher's computers unit is connected with control module by bus or network, and teacher's computers unit is in listening state to set up communication with control module and be connected in time.
In the present embodiment, teacher's computers unit comprises experimental project typing module, for the exact connect ion relation data of each for the electric device testing the project of practice connection terminal is inputed to teacher's computers unit, system generates wiring check scheme according to the annexation of each connection terminal of institute's typing, wherein, annexation is divided into three kinds: directly connecting, being connected three kinds without connecting with cross-line circle, the annexation of all connection terminals and other connection terminals is recorded by scan mode by standard test project typing module one by one, thus forms wiring check scheme.
In the present embodiment, output display module comprises multiple LED light, each terminals one_to_one corresponding of electric device on LED light and experimental real-training operating platform.
In the present embodiment, teacher's computers unit comprises wiring and instructs module, and wiring instructs module transmission to instruct display to send to output display module progressively to show the wiring step of circuit on experimental real-training operating platform; Wiring is instructed module to read aforementioned wiring check scheme and is sorted according to the order of connection of General Electric's wiring rules to each connection terminal, thus generate wiring guidance program, for experimenter provides wiring step to indicate, control module progressively instructs operator to complete the line of experimental project according to this wiring guidance program by the pilot lamp belonging to the connection terminal of two electric devices lighting next step and should connect.
In the present embodiment, teacher's computers unit also comprises wiring and to correct errors checking module and wiring quality evaluation module, wiring corrects errors checking module first by the annexation on control module reading current experiment training operation platform between each electric device connection terminal, then the correct wiring relation provided with wiring check scheme contrasts, as both comparing results are not corresponding, then send corresponding display to output display module and carry out mistake display; In addition, wiring checking module of correcting errors reads aforementioned wiring check scheme and generates wiring according to General Electric wiring rules and to correct errors inspection scheme, calls for wiring quality evaluation module and control module.Wiring quality evaluation module reads the annexation on current experiment training operation platform between each electric device connection terminal and is analyzed with the correct wiring relation that wiring check scheme provides, and obtains quality assessment report; Be specially: generate quality assessment report according to technical indicators such as the just overdue number of wiring, wiring time used and number of times of makeing mistakes.
In the present embodiment, teacher's computers unit also comprises line bank mismatch block, line bank mismatch block is corrected errors according to wiring the comparing result of checking module, the pilot lamp belonging to electric device connection terminal is lighted by control module, light the terminal pilot lamp of a pair false wiring at every turn, guide operator to complete the wiring misarrangement of electric wiring successively.
In the present embodiment, control module is measured the resistance value between terminals each on experimental real-training operating platform by analog-to-digital conversion module.
In the present embodiment, control module is connected with experimental real-training operating platform by two-way photoelectric isolation module.
In the present embodiment, the core of control module is single-chip microcomputer (controller namely in figure), matrix liquid-crystal display screen is used for the display of system information, touch the instruction input that keyboard accepts experimenter, the analog voltage being used for measurement port resistance is carried out analog to digital conversion by analog-to-digital conversion module, two-way photoelectric isolation module is used for isolation control module and electric device being carried out strong and weak electricity, communication module is used for the data communication between control module and teacher's computers unit, and single-chip microcomputer is responsible for control and the coordination of each functional module.
In the present embodiment, laboratory table is General experimental table, and electrical control device and wire casing and connection terminal are conventional electrical control device, and device board is for carrying the brassboard of each electric device and additional device through specialized designs.Wherein device board is double-layer structure, comprise base plate and panel, each electric device (includes but not limited to contactor, travel switch, pushbutton switch, all kinds of relays etc.) be fixed on base plate, the terminal of each device is all drawn out on the connection terminal of the same name that is placed on panel, in device terminal, draw one for detecting the wire of this terminal voltage signal simultaneously, control module is delivered to after Phototube Coupling, as shown in Figure 5, for the structural representation of panel, wherein panel is placed in above base plate, panel has fenestra on the position of respective electric device, the each electric device be placed on base plate is made to pass panel, so that operator can be observed by this fenestra or operate this electric device, panel is furnished with the panel connecting terminal block be connected with each electric device, and the symbol of this device and each port is indicated at each terminal place, and a multi-colored led pilot lamp for wiring instruction is provided with at each terminal place, panel is furnished with wire casing, for the wiring of wire.
After control module receives wiring teaching instruction by keyboard input module, namely with teacher's computers unit communications, the wiring guidance program of this experimental project is read from teacher's computers unit, then the order of connection determined according to wiring guidance program controls next step needs the multi-colored led pilot lamp of two connection terminals connected to be green illuminating state, and by analog-to-digital conversion module, to terminal, electrical resistance monitoring is carried out to this immediately, if recording resistance is null value or close to null value, show that this place's wiring completes, wiring is instructed and is entered next link, direct experiment person completes whole wiring successively.
Correct errors check after instruction when controller receives wiring, the wiring of reading this experimental project from teacher's computers unit is corrected errors inspection scheme, by analog-to-digital conversion module, the resistance value between each terminal is measured, if the resistance recorded between 2 is zero or close to zero, then this is to being direct connection relational between terminal, if the resistance recorded between 2 is infinitely large quantity, then this is to being without annexation between terminal, if the resistance recorded between 2 is tens to hundreds of ohm (this scope is determined according to the coil resistance of practical devices), then this is between terminal being cross-line circle annexation, annexation between the respective terminal that inspection scheme of the annexation drawn by resistance measurement and wiring being corrected errors is provided contrasts, thus determine that the wiring of this point is corrected errors.
After control module receives wiring misarrangement instruction, the wiring misarrangement scheme of this experimental project is read from teacher's computers unit, correct errors in wiring on the basis checking data, point out according to the point of the determined order of connection of wiring guidance program successively butted line mistake, reminding method is that the multi-colored led pilot lamp of control two connection terminal takes on a red color illuminating state.
After control module receives wiring quality examination instruction, the wiring quality assessed form of this experimental project is read from host computer, if carried out inspection of correcting errors, then read check result of correcting errors, if do not carry out inspection of correcting errors, then correct errors by above-mentioned wiring and check that step carries out inspection of correcting errors, thus obtain the data of the just overdue number of wiring, read simultaneously wiring make mistakes number of times (the test run frequency of failure that is namely energized or start software wiring correct errors check number of times) data, the comprehensive wiring time used, complete butted line quality and carry out evaluation.
As shown in Figure 4: control module is No. 1 path of gating multiway analog switch 1 and No. 1 path of multiway analog switch 2 respectively, then constant current source, multiway analog switch 1 pin 1, photoisolator pin 1, electric device terminal 1, electric device terminal 8, photoisolator pin 8, the pin 1 of multiway analog switch 2, power supply ground composition current path, through amplifier, signal is delivered to A/D converter, if the resistance value be converted to by A/D is the little value (conducting resistance of each multiway analog switch of software elimination and photoisolator) close to zero, it is then wire direct connection relational between electric device terminal 1 and terminal 8, if record resistance value for infinitely great, be then without contacting directly between electric device terminal 1 and terminal 8, if the resistance recorded between 2 is tens to hundreds of ohm (this scope is determined according to the coil resistance of practical devices), it is then cross-line circle annexation between electric device terminal 1 and terminal 8, inspection scheme that annexation between the electric device terminal 1 drawn by resistance measurement and terminal 8 and wiring are corrected errors provide this annexation between terminal is contrasted, thus can determine that the wiring between electric device terminal 1 and terminal 8 is corrected errors.The 1-7 path of control module gating multiway analog switch 2 successively, can obtain the annexation between electric device terminal 1 and electric device terminal 2-7.According to this principle, scan all terminals in electric wiring successively, thus obtain its interconnected relationship, and the annexation that wiring is corrected errors between corresponding terminal that inspection scheme provides contrasts, thus can determine that the wiring of all terminals is corrected errors.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (10)
1. an electrical control class experimental real-training intelligent tutoring and checking system, it is characterized in that, comprise experimental real-training operating platform, control module and host computer, described control module is connected with host computer with described experimental real-training operating platform respectively, described control module comprises output display module, experimental real-training project standard wired data is preset with in described host computer, described control module gathers the physical cabling data of experimental real-training operating platform and contrasts with experimental real-training project standard wired data, and comparing result is sent to host computer and carries out wiring quality examination, simultaneously send according to comparing result corresponding display to carry out comparing result display to output display module.
2. electrical control class experimental real-training intelligent tutoring according to claim 1 and checking system, it is characterized in that, described host computer comprises wiring and instructs module, and described wiring is instructed module to send and instructed display to output display module progressively to show the wiring step of circuit on experimental real-training operating platform.
3. electrical control class experimental real-training intelligent tutoring according to claim 1 and 2 and checking system, it is characterized in that, described host computer also comprises wiring and to correct errors checking module, the physical cabling data of experimental real-training operating platform and experimental real-training project standard wired data contrast by described wiring checking module of correcting errors, as both comparing results are not corresponding, then send corresponding display to output display module and carry out mistake display.
4. electrical control class experimental real-training intelligent tutoring according to claim 3 and checking system, it is characterized in that, described host computer also comprises line bank mismatch block, described line bank mismatch block is corrected errors according to wiring the comparing result of checking module, send successively corresponding display to output display module by splicing ear inconsistent for comparing result by showing.
5. electrical control class experimental real-training intelligent tutoring according to claim 4 and checking system, it is characterized in that, described host computer comprises wiring quality evaluation module, physical cabling data on experimental real-training operating platform and experimental real-training project standard wired data are analyzed by described wiring quality evaluation module, obtain quality assessment report.
6. electrical control class experimental real-training intelligent tutoring according to claim 1 and 2 and checking system, it is characterized in that, described host computer comprises experimental real-training project standard wired data typing module, for experimental real-training project standard wired data is inputted and is stored in host computer.
7. electrical control class experimental real-training intelligent tutoring according to claim 6 and checking system, is characterized in that, described experimental real-training project standard wired data is the annexation in experimental real-training project between each electric device connection terminal.
8. electrical control class experimental real-training intelligent tutoring according to claim 7 and checking system, is characterized in that, described output display module comprises multiple LED light, each connection terminal one_to_one corresponding on described LED light and experimental real-training operating platform.
9. the electrical control class experimental real-training intelligent tutoring according to claim 7 or 8 and checking system, is characterized in that, described control module is measured the resistance value between terminals each on experimental real-training operating platform by analog-to-digital conversion module.
10. electrical control class experimental real-training intelligent tutoring according to claim 1 and 2 and checking system, is characterized in that, described control module is connected with described experimental real-training operating platform by two-way photoelectric isolation module.
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