CN209087220U

CN209087220U - A kind of signal and control class group training external member case

Info

Publication number: CN209087220U
Application number: CN201821076357.8U
Authority: CN
Inventors: 吴忠深; 罗晓星; 李倍存; 洪鹤隽; 谭景松; 雷鑫
Original assignee: Guangxi Nanning Chengqi Technology Co Ltd
Current assignee: Guangxi Nanning Chengqi Technology Co Ltd
Priority date: 2018-07-09
Filing date: 2018-07-09
Publication date: 2019-07-09
Anticipated expiration: 2028-07-09

Abstract

The utility model discloses a kind of signals and control class group training external member case, including upper box, lower box, upper motherboard, lower motherboard, idle expansion module plate and experiment module plate, the back edge of upper box and lower box back edge are hinged, the leading edge and lower box leading edge of upper box carry out snapping, the fixed upper motherboard in upper box, several idle expansion module plates are plugged on upper motherboard, lower motherboard is arranged in lower box, several experiment module plates are plugged on lower motherboard, multiple experimental power supply sockets and grounding receptacle are provided on lower motherboard, two adjacent experimental power supply sockets and two adjacent grounding receptacles surround a free area, it is electrically connected to each other between each grounding receptacle, each experiment module plate is plugged on respectively in experimental power supply socket and grounding receptacle.The utility model can be realized the quick modifications and extensions of Experimental Hardware resource, safeguard misoperation probability that is simple and convenient, reducing student, improve the safety and reliability of equipment.

Description

A kind of signal and control class group training external member case

Technical field

The utility model belongs to Electronic Training equipment technical field more particularly to a kind of signal and control class group training external member Case.

Background technique

With the fast development of educational undertaking, especially higher education, the content of courses of course has stronger spirit Activity and scalability, Experimental Hardware resource can be changed or add quickly to match the religion instrument examination of the content of courses in time by being badly in need of one kind Tryoff.Often experiment content is limited and fixed single for traditional religion instrument experimental box, all experimental resources is all integrated in same In block test panel, each Experimental Hardware resource has close connection in electrical connection.Which results in test panel The damage of fractional hardware circuit will affect the normal uses of other experimental resources, increase the work of teaching experimental equipment maintenance Amount and capital investment.For the problems of above tradition religion instrument experiment, a kind of religion instrument test of practical innovation is devised Box structure.

Utility model content

The purpose of this utility model is to provide a kind of signal and control class group training external member case, the class groups of the utility model Training external member case can be realized, the quick modifications and extensions of Experimental Hardware resource, maintenance and repair method is simple and convenient, reduces student Misoperation probability, improve the safety and reliability of equipment.To achieve the goals above, the utility model uses following skill Art effect:

According to the one aspect of this hair utility model, a kind of signal and control class group training external member case are provided, including upper Cabinet, lower box, upper motherboard, lower motherboard, idle expansion module plate and experiment module plate, the back edge of the upper box with it is described Lower box back edge is hinged, and the leading edge of the upper box and the lower box leading edge carry out snapping, in the upper box The fixed upper motherboard, is plugged with several idle expansion module plates on the upper motherboard, and the lower motherboard is arranged in nowel In vivo, it is plugged with several experiment module plates on the lower motherboard, is provided with confession in lower box and below lower motherboard Electric system, is provided with power wiring seat at the back side of the lower box, the lower surface of lower motherboard is provided with power access end, institute The input terminal for stating power supply system is electrically connected by conducting wire and the power wiring seat, and the power output end of the power supply system is logical It crosses conducting wire to connect with the power access end of the lower motherboard lower surface, multiple experimental power supply sockets are provided on lower motherboard and connect Ground socket, two adjacent experimental power supply sockets and two adjacent grounding receptacles surround a free area, each experiment electricity It is electrically connected to each other and is connect by the copper foil cabling of lower master surface with the power access end, each ground connection between supply socket It is electrically connected to each other between socket, the free time that every block of experiment module plate is plugged on experimental power supply socket respectively and grounding receptacle is formed On region.

Above scheme is it is further preferred that the quantity of the free time expansion module plate is equal to or more than the number of experiment module plate When amount, the upper box and lower box lid close, the idle expansion module plate of upper motherboard grafting and the experiment module of lower motherboard grafting Plate in it is symmetrical above and below when, size and function setting it is all identical, lower box bottom center or two sides be provided with one or A miniature electric telescopic rod, the telescopic end of the miniature electric telescopic rod are connect with the lower motherboard lower surface.

Above scheme it is further preferred that being provided with banana plug on the experiment module plate, insert by the experimental power supply Seat and grounding receptacle be banana bin, the experiment module plate by banana plug respectively with matched power outlet on lower motherboard With grounding receptacle grafting, it is described free time expansion module plate and upper motherboard between also by the banana plug and banana plug being mutually matched Seat is mutually inserted, and the lower motherboard is divided into four grafting placement regions, and the free area is evenly distributed on four grafting and places In region, the experiment module plate is respectively across being plugged on the free area being distributed in one or more grafting rest area On domain.

Above scheme is it is further preferred that the experiment module plate includes independently being plugged on four grafting of lower motherboard to put Set the active experiment module plate of muti-piece and an at least block sampling theorem proving module board in region, sampling keeps module board, can Become capacitance resistance library module plate, resistance capacitance library module plate, electric power generation speed regulation experiment module board, Embedded System Experiment interface module Plate, temperature experiment module plate, function signal generator module board, multifunctional signal generator module board, frequency characteristic module plate, Labview drive control module and energy supply control module plate, the energy supply control module plate are respectively source experiment module plate, sampling Theorem proving module board, sampling keep module board, variable capacitance resistance library module plate, resistance capacitance library module plate, electric power generation Speed regulation experiment module board, Embedded System Experiment interface module plate, temperature experiment module plate, function signal generator module board, more function It can signal generator module board, frequency characteristic module plate and Labview drive control module offer working power；It is described variable Capacitor hinder library module plate and resistance capacitance library module plate respectively with the signal input part of the active experiment module plate, sampling theorem The signal input part of authentication module plate, sampling keep the signal of the signal input part of module board, function signal generator module board The signal output end of input terminal and multifunctional signal generator module board is attached；The Embedded System Experiment interface module plate Control output end respectively with the electric power generation speed regulation experiment module board, temperature experiment module plate and Labview drive control mould Block exports control interface connection, the output end of the frequency characteristic module plate, the output end of sampling theorem authentication module plate, sampling Keep the output end difference of the output end of module board, the output end of electric power generation speed regulation experiment module board and temperature experiment module plate It is connect with the input terminal of the Labview drive control module.

Above scheme is it is further preferred that the active experiment module plate includes at least active low-pass filter module board, has Source high-pass filtering module board, active bandpass filiter module board, active integration module plate, active derivative module plate, active nonlinear Amplification circuit module, active linear amplification circuit module and active rejector circuit's module.

Above scheme is it is further preferred that the sampling theorem authentication module plate includes sampling collector and low-pass filtering Device, the output end connection of the input terminal and function signal generator module board of the sampling collector, the sampling collector Output end is connect with the input terminal by low-pass filter Labview drive control module, and the sampling holding module board includes Monostable flipflop and sampling holder, the input terminal of the monostable flipflop and the multifunctional signal generator module board Output end connection, the output end of the monostable flipflop passes through sampling holder and the Labview drive control module Input terminal connection.

Above scheme is it is further preferred that the sampling collector includes resistance R100, resistance R101, resistance R102, electricity Hinder R103, resistance R104, resistance R105, capacitor C100, capacitor C101, capacitor C102, capacitor C103, capacitor C104, triode Q100 and triode Q101, the sine wave signal output end of the function signal generator module board respectively with capacitor C100 one The cathode of the anode connection at end, capacitor C101, one end of capacitor C100 and capacitor C101 with respectively with one end of resistance R101 and One end of resistance R102 connects, and one end of the collector and capacitor C103 of the other end of resistance R101 and the triode Q100 connects Connect, the square-wave signal output end of the function signal generator module board by capacitor C102 respectively with one end of resistance R100 and The base stage of triode Q100 connects, and the other end of capacitor C103 connects with the base stage of one end of resistance R103 and triode Q101 respectively It connects, the emitter of the triode Q101 is connect with one end of one end of resistance R104 and capacitor C104 respectively, capacitor C104 The other end connect with the input terminal of the low-pass filter by resistance R105, the collector and resistance of the triode Q101 The cathode power supply output end of the other end energy supply control module plate of R103, the other end and power supply of the resistance R104 control mould The negative power supply output end of block plate, the other end of the resistance R102 and the emitter of triode Q100 are connected to ground.

Above scheme is it is further preferred that the monostable flipflop uses CD14538BE monostable flipflop chip, institute Sampling holder is stated using LF398N sampling holder chip.

Above scheme is it is further preferred that the frequency characteristic module plate includes proportional component, the first inertial element, ratio Differentiation element, adder circuit, integral element and the second inertial element, it is used that the output end of the proportional component passes sequentially through first Property link, proportion differential link, adder circuit and integral element and second inertial element, second inertial element is defeated Outlet is connect with the input terminal of the adding input of adder circuit and Labview drive control module respectively.

Above scheme is it is further preferred that the back edge of the upper box and the lower box back edge pass through two hinges Formula structure carries out hingedly, and upper box rotates backward under opening state along hinge typed structure, the angle between upper box and lower box In 90 degree to 120 degree, the positive center of the lower box is provided with handle, upper box and lower box, snapping is carried out by lock It is fixed.

In conclusion the utility model has following technical effect that since the utility model uses above-mentioned technical proposal

(1), the utility model authoring structure advantages of simple, it is simple and clear, it is convenient for patching operations, and maintenance side Just, class demonstration and student experimenting be can be widely used for, all kinds of teaching and scientific research requirement of experiment are not only can satisfy, enhance it to class The understanding of journey content and industrial processes automation physical object, can also for each type student and researcher in complication system and The research of advanced control system provides the relevant physical object simulation of industrial process automation and laboratory facilities.

(2), the process control experiment that can flexibly simulate multiple systems, relates generally to temperature, electric machine speed regulation and power generation, number According to the control processes such as acquisition and sampling, waveform generation, embedded interface and virtual experimental, control experiment is carried out by crossing multisystem It can be used as the experimental provision of institution of higher learning's control course, the research of electronic circuit Process Control System can also be mentioned for scientific research personnel For perfect a physical object simulation and experiment porch；It is able to satisfy modules to the power supply requirement of different voltages grade, respectively Module is mutually independent and connects each other, and work is independent of each other, can be realized Experimental Hardware resource quick modifications and extensions, Maintenance and convenience easy to maintenance, the misoperation probability for reducing student, improve the safety and reliability of equipment.

(3), the process control experiment of a variety of electronic systems of training external member analog of the utility model, and tightly around religion To the teaching point of typical circuit and provide the experimental plate and experiment external member of lab exercise in material, class-exercise involved in teaching and Experiment can be completed by the utility model after class.A variety of basic circuit units and combination shape are contained in training external member Formula；And blocking has been carried out to specific circuit, it does not need student and builds specific circuit；Being combined with each other between each unit can Meet the whole instruction of electronic control aspect in general technology teaching.

Detailed description of the invention

Fig. 1 is a kind of signal of the utility model and the structural schematic diagram of control class group training external member case；

Fig. 2 is a kind of signal of the utility model and the cross-sectional view of control class group training external member case；

Fig. 3 is a kind of signal of the utility model and the rearview of control class group training external member case；

Fig. 4 is office's schematic construction schematic diagram of the lower motherboard cloth of the utility model；

Fig. 5 is the structural schematic diagram of the Labview drive control module of the utility model；

Fig. 6 is the functional block diagram of the PWM wave signal generating unit of the utility model；

Fig. 7 is the circuit diagram of the PWM wave signal generating unit of the utility model；

Fig. 8 is the functional block diagram of the sampling theorem authentication module plate of the utility model；

Fig. 9 is the functional block diagram of the frequency characteristic module plate of the utility model；

Figure 10 is the structural schematic diagram of the electric power generation speed regulation experiment module board of the utility model；

Figure 11 is the circuit diagram of the experiment control unit of the utility model；

Figure 12 is the facing structure figure of the temperature experiment module plate of the utility model；

Figure 13 is the overlooking structure figure of the temperature experiment module plate of the utility model；

Figure 14 is the side block diagram of the temperature experiment module plate of the utility model；

Figure 15 is the control principle drawing of the temperature experiment control circuit of the utility model.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, referring to the drawings and enumerate excellent Embodiment is selected, the utility model is further described.However, it is necessary to illustrate, many details listed in specification It is specific even without these just for the sake of making reader have a thorough explanation to the one or more aspects of the utility model Details also may be implemented the utility model these aspect.

As shown in Figure 1, Figure 2 and Figure 3, according to the one aspect of this hair utility model, a kind of signal and control class are provided Group's training external member case, including upper box 1, lower box 2, upper motherboard 3, lower motherboard 4, idle expansion module plate 5 and experiment module plate 6, the back edge of the upper box 1 and 2 back edge of lower box are hinged, the leading edge of the upper box 1 and the lower box 2 Leading edge carries out snapping, and the upper motherboard 3 is fixed in the upper box 1, several free time are plugged on the upper motherboard 3 Expansion module plate 5, the lower motherboard 4 are arranged in lower box 2, are provided with below the oral area inward flange of lower box 2 due to branch The supporting table 40 of the fixed lower motherboard 4 of support, is provided with one in 2 bottom center of lower box or two sides or 2 miniature electrics is stretched Contracting bar, the telescopic end of the miniature electric telescopic rod 41 and lower 4 lower surface of motherboard are sequentially connected, to make to take out or put Set that lower motherboard 4 is more convenient when in supporting table 40, the edge of the lower motherboard 4 is contained in around the oral area of the lower box 2 Under edge, several experiment module plates 6 are plugged on the lower motherboard 4, in lower box 2 and are located at below lower motherboard 4 It is provided with power supply system 7, the back side of the lower box 2 is provided with power wiring seat 8, is provided in the lower surface of lower motherboard 4 The input terminal of power access end 9, the power supply system 7 is electrically connected by conducting wire and the power wiring seat 8, the power supply The power output end of system 7 is connect by conducting wire with the power access end 9 of lower 4 lower surface of motherboard, and the power supply system 7 is wrapped Include power-supply filter CW2B-6A/10A-T and high-power AC-DC conversion switch power supply two parts.The power-supply filter CW2B- 6A/10A-T AC socket carries filter function, self carried fuse slot, alternating current input switch and power supply indicator, have compared with High practicability and security reliability, the selection of high-power AC-DC conversion switch power supply need to be required according to experiment particular hardware and Fixed, power need to meet twice of experiment external member cabinet rated power.AC-DC switch power supply is fixedly mounted on the bottommost of cabinet, AC socket set 8 set 2 back side of lower box the lower left corner and AC socket set 8 included protective tubes and power-on switch, AC socket If 8 are directly transmitted to mains supply after power-supply filter CW2B-6A/10A-T input terminal again by power-supply filter CW2B- 6A/10A-T direct current output is transmitted on lower motherboard 4.Multiple experimental power supply sockets 61 and grounding receptacle are provided on lower motherboard 4 62, two adjacent experimental power supply sockets 61 and two adjacent grounding receptacles 62 surround a free area 60, each experiment electricity It is interconnected and is connect by the copper foil cabling on lower 4 surface of motherboard with the power access end 9, each ground connection between supply socket 61 It is electrically connected to each other between socket 62, every block of experiment module plate 6 is plugged on 62 shape of experimental power supply socket 61 and grounding receptacle respectively At free area 60 on, the quantity of the free time expansion module plate 5 is equal to or more than the quantity of experiment module plate 6, it is described on When cabinet 1 and the lid of lower box 1 close, the experiment module plate 6 of the idle expansion module plate 5 of upper 3 grafting of motherboard and lower 4 grafting of motherboard In it is symmetrical above and below when, size and function setting it is all identical, according to experiment simultaneously use muti-piece free time expansion module plate 5 or Replacement maintenance is tested and carried out to experiment module plate 6.The back edge of the upper box 1 and 2 back edge of lower box are logical It crosses two hinge typed structures to carry out hingedly, upper box 1 rotates backward under opening state along hinge typed structure, upper box 1 and nowel Angle between body 2 is in 90 degree to 120 degree, the positive center of the lower box 2 is provided with handle 10, in 10 two sides of handle Be provided with lock 11, facilitate the replacement and placement of experiment module, when upper box 1 and the lower box 2 fasten, upper box 1 with Lower box 2 is locked by lock 11, and upper and lower box can be reliably fixed nextpage, convenient in carrying when being closed.Described Banana plug is provided on experiment module plate 6, the experimental power supply socket 61 and grounding receptacle 62 are banana bin, the experiment Module board 6 by banana plug respectively with 62 grafting of matched power outlet 61 and grounding receptacle on lower motherboard 4, it is described idle to expand It is mutually inserted between exhibition module board 5 and upper motherboard 3 also by the banana plug and banana bin that are mutually matched.

In the present invention, in conjunction with shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the lower motherboard 4 divides for four grafting rest areas Domain, the free area are evenly distributed in four grafting placement regions, and the experiment module plate 6 is respectively across being plugged on one Or on the free area 60 being distributed in more than two grafting rest areas, experiment module plate 6 can also be across being plugged on one On one or more the free area 60 being distributed in grafting rest area, the experiment module plate 6 includes independently It is plugged on the active experiment module plate of the muti-piece on lower motherboard 4 in four grafting placement regions and at least a block sampling theorem is tested Demonstrate,prove module board, sampling keeps module board, variable capacitance resistance library module plate, resistance capacitance library module plate, electric power generation adjust the speed in fact Test module board, Embedded System Experiment interface module plate, temperature experiment module plate, function signal generator module board, multifunctional signal Generator module plate, frequency characteristic module plate, Labview drive control module and energy supply control module plate, active experiment module, Sampling theorem authentication module plate, sampling keep the size of module board, function signal generator module board and frequency characteristic module plate It is identical；The energy supply control module plate be respectively source experiment module plate, sampling theorem authentication module plate, sampling keep module board, Variable capacitance resistance library module plate, resistance capacitance library module plate, electric power generation speed regulation experiment module board, Embedded System Experiment interface mould Block plate, temperature experiment module plate, function signal generator module board, multifunctional signal generator module board, frequency characteristic module Plate and Labview drive control module provide working power；The variable capacitance resistance library module plate and resistance capacitance library module plate It is kept respectively with the signal input part of the active experiment module plate, the signal input part of sampling theorem authentication module plate, sampling The signal input part of module board, the signal input part of function signal generator module board and multifunctional signal generator module board Signal output end is attached；The control output end of the Embedded System Experiment interface module plate is adjusted the speed with the electric power generation respectively Experiment module plate, temperature experiment module plate are connected with Labview drive control module output control interface, the frequency characteristic mould The output end of block plate, the output end of sampling theorem authentication module plate, sampling keep the output end of module board, electric power generation speed regulation real The output end of the output end and temperature experiment module plate of the testing module board input terminal with the abview drive control module respectively Connection；Four grafting placement regions on lower motherboard 4 are respectively a-quadrant, B area, the region C and the region D, four grafting rest areas Domain is successively set on lower motherboard 4 from inward flange to outer edge, and each region is in be laterally extended (i.e. along lower mother on lower motherboard 4 The longitudinal direction of plate 4 is extended), the lower motherboard 4 close to the side at rear in lower box 2 is set as a-quadrant, from back to front according to It is secondary to be divided into B area, the region C and the region D, a free area is formed using as unit of four banana bins as a basic mould The basic module area size size in block region, same specification is identical, the electric power generation speed regulation experiment module board, insertion Formula experimental interface module board, temperature experiment module plate are respectively along the a-quadrant of lower motherboard 4 (area A1, the area A2 and the area A3) and from left-hand The right side is arranged successively, and each module distribution in a-quadrant is in two basic module regions (free area 60), the function signal Generator module plate, multifunctional signal generator module board and Labview drive control module are respectively along lower motherboard 4 under It the B area (area B1, the area B2 and the area B3) of motherboard 4 and is arranged successively from left to right, each module distribution in B area is at two In basic module region (free area 60), the active experiment module plate, sampling keep module board and sampling theorem to verify mould Block plate is separately positioned on any one free area 60 on the region C and the region D and by the complete grafting cloth in two region Office is full, and each module distribution in the region C and the region D is in a basic module region (free area 60)；The power supply control Module board processed is arranged in the right side of lower motherboard 4 and across being plugged on a-quadrant and the region B, and the variable capacitance hinders library module plate The right side of lower motherboard 4 is separately positioned on resistance capacitance library module plate and from right to left across being plugged on the region C and the region D In (area C1 to the area C5 and the area D1 to the area D5).When upper box 1 and lower box lid close, for being plugged with several skies on upper motherboard 3 Not busy expansion module plate 5 is in mirror image pair with the experiment module plate 5 on the completely the same lower motherboard 4 of same type design specification size Claim, is not only each circuit module and is laid out more beautiful and experiment circuit module will not be obscured.This is but also between each module Independence is stronger, and the damage of some module will not influence the normal work of other experimental resources of experimental box, can be immediately by damage After bad module replacing falls, the function of entire experimental box can be restored, and provide a great convenience to the maintenance and repair of equipment.On Interval and motherboard on motherboard 3, lower motherboard 4 between corresponding same type of idle expansion module plate 5 and experiment module plate 6 with Interval between module is consistent, and the area size size of same type specification free time expansion module plate or experiment module plate is complete Equally, enable the experiment module of various specifications size while placing on motherboard, can also dismantle and be stored in idle expanded mode On block region.

In the present invention, in conjunction with shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the energy supply control module plate is arranged in motherboard The upper right corner, and arrange DC power supply master switch, fuse and DC power supply indicator light, supplied for controlling direct current It gives and to power to each experiment module.One banana bin and horizontally is set on four angles of each experiment module Axial symmetry, vertical direction is asymmetric, i.e. the distance of two banana bin of the left side is slightly less than the distance of two banana bins of the right, according to this The experiment module placement direction that specifications design comes out is unique, avoids maloperation reversal connection power supply clock synchronization experiment module and causes to damage. In the present invention, the active experiment module plate includes at least active low-pass filter module board, active high-pass filtering module Plate, active bandpass filiter module board, active integration module plate, active derivative module plate, active nonlinear amplification circuit module (have Source nonlinear amplification circuit module is made of two non-linear basic circuits and -12V~+12V adjustable voltage output circuit.It should Active nonlinear amplification circuit module can cooperate with active circuit can show ideal relay, ideal saturation, dead zone and gap Etc. typical non linears link), active linear amplification circuit module (transported by one or two monomer by active linear amplification circuit module OP07CP composition is put, resistance capacitance library module plate can be cooperated to constitute adder, subtracter and voltage comparator, or cooperation Other active module embedded thereins can simulate increasingly complex high order system) and active rejector circuit, active experiment module is by Dan Yun OP07CP and several resistance capacitances composition are put, resistance, the capacitance parameter per a piece of active experiment module are all different, circuit connection Also there is different, the basic links circuit such as active power filtering module or ratio, integral, differential, inertia use is set as needed into Be in resistance, the capacitance parameter on the circuit analoging experiment of control system, each active module embedded therein it is undetermined, can be with resistance capacitance library Different resistance is chosen in module board or/and variable capacitance resistance library module plate, capacitance parameter compares the difference of its filter effect It is different.The minimum systematic module and a piece of serial ports screen that Embedded System Experiment interface module plate is made of a piece of MSP430F149 single-chip microcontroller Display, a piece of wireless communication module and four independent key compositions, each I/O port of MSP430F149 single-chip microcontroller pass through row's needle Or ox horn is inserted and is drawn, and has preferable versatility.Serial ports screen is to show various measurement parameters, and four independent keys are to carry out Parameter setting, wireless communication module is used to communicate wirelessly with other single-chip microcontrollers and information exchange；Multifunctional signal generator Module board is exported with single channel waveform, is had two-way difference Transistor-Transistor Logic level output channel, can be generated sine wave, square wave (duty ratio It is adjustable), rectangular wave, triangular wave, sawtooth wave, the waveforms such as common pulse, noise, electrocardiogram, amplitude-modulated wave, frequency-modulated wave, to generate Special signal source；Function signal generator module board is to generate step, the three kinds of signals in slope and parabola and control class group The most commonly used waveform is tested, output waveform amplitude is adjustable, and waveform widths are adjustable.Resistance capacitance library module plate is by different parameters Resistance, capacitor, diode and inductance composition, to meet active circuitry simulation, filter experiment to special parameter device Demand；Variable capacitance resistance library module plate is made of two high-precision potentiometers and two 4 groups of coding switch circuits.It can be with Desired resistance value and capacitance parameter are adjusted out according to experiment demand.

In the present invention, in conjunction with shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the Labview drive control module Including PCB control panel 100, it is fixed on the USB6009 data collecting card 101 in the 100 front center of PCB control panel and sets Set 100 back side of PCB control panel PWM wave signal generating unit 102, be arranged in USB6009 data collecting card 101 or so two The object control interface 103 and Peripheral Interface 104 of side and USB6009 data collecting card 101 is set there is upper angle attachment USB interface 105, the object control interface 103, Peripheral Interface 104 and usb 1 05 respectively by copper foil cabling with it is described The control port of USB6009 data collecting card 101 connects, the simulation output mouth and PWM of the USB6009 data collecting card 101 The comparison input terminal of wave signal generating unit 102 connects, USB6009 data collecting card 101 (or with USB6008 data collecting card Substituted) be externally provided with 8 road analog input channels, 2 tunnel analog output channels, 12 Digital I/O lines and 32 resolution ratio count Device has voltage acquisition function, voltage acquisition range -10V to+10V, analog voltage output function, and voltage output range 0V is extremely 5V, I/O port output function and step-by-step counting function.Wherein, 8 road analog input channels can be used as control signal sampling mouth, can also make For the data acquisition port of host computer virtual oscilloscope；2 tunnels analog output channel exportable 0 to 5V variation range analog signal, To which the control signal of circuit output different duty occur for PWM wave, 12 Digital I/O lines provide signal input/output function With 32 resolution counters for capturing step-by-step counting.The basic application occasion of the USB6008/6009 data collecting card Including simple data record, portable type measuring and the laboratory experiment of academic institution, support Windows, Mac OS X, Linnux and Pocket PC drive software can be used LABVIEW after installing NI-DAQmx Base drive software or C be USB6009 programming reads the number that USB6008 data collecting card 101 acquires by usb 1 05 by being attached with host computer According to.In the present invention, as shown in fig. 6, the PWM wave signal generating unit 102 includes square wave generation circuit 1020, sawtooth Wave generation circuit 1021, voltage comparator circuit 1022 and waveform shaping electricity 1023, the output end of side's wave generation circuit 1020 By sawtooth wave generating circuit 1021, input terminal is connected compared with voltage comparator circuit 1,022 first, and the USB6009 data are adopted The simulation output mouth AO1 of truck 101 input terminal compared with voltage comparator circuit 1,022 second connects, in the present invention, such as Shown in Fig. 7, side's wave generation circuit 1020 includes capacitor C1, resistance R1, resistance R2, resistance R3, resistance R4, zener diode D1, zener diode D2 and the first operational amplifier A1, the sawtooth wave generating circuit 1021 include resistance R5, resistance R6, electricity Hold C2 and second operational amplifier A2, the voltage comparator circuit 1022 includes third operational amplifier A3, first operation The negative input of amplifier A1 is connect with one end of one end of the capacitor C1 and resistance R1 respectively, first operation amplifier The electrode input end of device A1 is connect with one end of the resistance R3 and resistance R4 respectively, the output of the first operational amplifier A1 End connect with one end of the resistance R2, the other end of resistance R2 respectively with the other end of the resistance R1, resistance R3 it is another It holds, the anode of zener diode D1 is connected with one end of resistance R5, the cathode of the zener diode D1 and two pole of pressure stabilizing The cathode of pipe D2 connects, and the one end of the other end of resistance R5 respectively with the input of the cathode of second operational amplifier A2 and capacitor C2 connects It connects, the anode input of second operational amplifier A2 is connect with one end of the resistance R6, the second operational amplifier A2's Anode input is connect with the electrode input end of the other end of the capacitor C2 and third operational amplifier A3 respectively, the third operation The negative input of amplifier A3 is connect with the simulation output end of the data acquisition unit 1, the third operational amplifier A3 Output end connect with the input terminal of the waveform shaping circuit, the other end of resistance R6, the other end of resistance R4 and pressure stabilizing two The positive cathode of pole pipe D2 is connected to ground respectively；The waveform shaping circuit 1023 carries out waveform using CD4050BE non-inverting buffer Shaping, the PWM wave that waveform shaping circuit 1023 exports are input to control target 1024 (such as electric machine speed regulation, generator speed, temperature Degree control etc.), control target 204 is controlled to using PWM wave so as to complete the generation of PWM wave.The utility model In three-level calculate amplifier A1-A7 OP07CP activated amplifier is respectively adopted, which is a kind of low noise, non-to cut Wave, steady zero, dual power supply operational amplifier integrated circuit, have extremely low input offset voltage, in most cases not Additional zeroing measure is needed, application method is simple and convenient.The waveform convertion process of entire PWM wave signal generating unit is divided into three Grade, the first order is the generation of square wave, constantly defeated in the output end of the first operational amplifier A1 by the continuous charge and discharge of capacitor C1 The frequency of square-wave signal out, square-wave signal determines by the resistance value of capacitor C1, resistance R1, resistance R3 and resistance R4, the square wave of output Amplitude carries out clamper by zener diode D1 and zener diode D2 and limits, generated square wave maximum voltage value+5V, minimum electricity Pressure value -5V, and the frequency of square wave meets:

Wherein, the frequency of f- square wave, the capacitance of C1- capacitor C1, the resistance value of R1- resistance R1, the resistance value of R3- resistance R3, The resistance value of R4- resistance R4.

The second level is the generation of sawtooth wave, mainly generates sawtooth wave using integrating circuit, and the effect that integrating circuit generates is Direct current signal is become into ramp signal, integral output is acclivity when the voltage of the square-wave signal of input is -5V, and voltage is Integral output is downward slope when+5V, generates sawtooth wave by continuous transform integrals direction；The third level is that voltage is more defeated Out, the analog voltage of the simulation output end AO1 of sawtooth signal and USB6008/6009 output passes through third operation amplifier respectively The electrode input end and negative input of device A3 carries out voltage and compares output, the simulation output end AO1 output of USB6008/6009 Analog voltage be connected to the reverse input end (negative input) of third operational amplifier A3, the working principle of comparator is to work as When the voltage of the positive input of third operational amplifier A3 is greater than reverse input end voltage, comparator exports high level, when just When being less than reverse input end voltage to the voltage of input terminal, comparator exports low level, exports after being constantly compared Continuous PWM wave, by the working principle of comparator it is found that the analog voltage of AO1 output is smaller, PWM wave duty ratio is bigger, The analog voltage of AO1 output is bigger, and PWM wave duty ratio is smaller, due to comparator export PWM wave signal has slightly abnormal Shape, therefore buffered in the same direction to device PWM wave signal using CD4050BE into waveform row shaping, to export perfect PWM wave.Described It is provided with and is equally spaced on 101 left side of USB6009 data collecting card and the PCB control panel 100 between Peripheral Interface 104 Test section 108, the test section 108 forms eight rows two column by test jack interface 108a and testing needle 108b and is equally spaced Test point, test jack interface 108a are configured using copper M2 banana bin, and major function is voltage signal acquisition, 8 test jack interface 108a and test are all led in the simulation input port AIO of USB6009 data collecting card 101 It is a test point being connected to that needle 108b, every row's test jack and every row, which test contact pin, thus by the input of 8 road analog input channels Analog signal greatly facilitates oscillograph to the real-time monitoring of input analog signal as oscillograph test point.In the utility model In, the object control interface 103 is separately connected the analog input channel AI0-AI1 of USB6009 data collecting card 101, counts The input terminal PFIO and pulse output end mouth PWMO1 and pulse output end mouth PWMO2 for connecting CD4050BE non-inverting buffer, Pulse output end mouth PWMO1 and pulse output end mouth PWMO2 is the control signal of controlled device, by control signal to being controlled Object, which is controlled, (such as just needs two-way pwm control signal due to needing to control motor positive and inverse in motor control object； Greenhouse temperature object can complete control function with pwm signal all the way), the Peripheral Interface 104 is separately connected USB6009 data Analog input channel AI0-AI7, the simulation output port AO0 of capture card 101 are connected with simulation output port AO1, and described second Peripheral Interface 106 be separately connected P0 mouthfuls of the digital quantity I/O port of USB6009 data collecting card 101 and P1 mouthful connect, 2.5V power supply is connected with+5V power supply；Attaching plug 106 and ground pin are provided in four corners of PCB control panel 100 GND attaching plug 106 and ground pin GND are fragrant plug and are respectively arranged that two, left side banana plug is main power input, The voltage of two different voltages grades is respectively+15V and -15V, and two, the right banana plug is power ground (GND), thus will PCB control panel 100 patches can work normally on the banana bin of the power supply motherboard specially designed for it, two, the left side The distance of banana plug wants smaller at a distance from the banana plug of two, the right, and the purpose being arranged so is specification PCB control panel 100 installation direction on motherboard avoids maloperation that reverse power connection is caused module damage.

In the present invention, in conjunction with shown in Fig. 1, Fig. 4 and Fig. 8, the sampling theorem authentication module plate includes that sampling is adopted Storage and low-pass filter, the output end connection of the input terminal and function signal generator module board of the sampling collector, institute The output end for stating sampling collector is connect with by low-pass filtering with the input terminal of Labview drive control module, the sampling Keeping module board includes monostable flipflop and sampling holder (not shown), the input terminal of the monostable flipflop with it is described The output end of multifunctional signal generator module board connects, and the output end of the monostable flipflop passes through sampling holder and institute The input terminal connection of Labview drive control module is stated, the monostable flipflop uses CD14538BE monostable flipflop Chip, the sampling holder use LF398N sampling holder chip, and pulse input signal is mentioned by multifunctional signal generator For, after monostable flipflop shaping for sampling holder use, effect mainly to holding capacitor input and output side into Row impedance variations, to improve sampling/hold amplifier performance, the transient response output signal access of sampling holder In the simulation input port of Labview drive control module, signal output waveform can be shown on virtual oscilloscope section, from And sampling can be quickly completed and keep confirmatory experiment.In the present invention, as shown in figure 8, the sampling collector includes electricity Hinder R100, resistance R101, resistance R102, resistance R103, resistance R104, resistance R105, capacitor C100, capacitor C101, capacitor C102, capacitor C103, capacitor C104, triode Q100 and triode Q101, the sine of the function signal generator module board Wave signal output end is connect with the anode of one end of capacitor C100, capacitor C101 respectively, one end of capacitor C100 and capacitor C101 Cathode with connect respectively with one end of one end of resistance R101 and resistance R102, the other end of resistance R101 and three pole The collector of pipe Q100 is connected with one end of capacitor C103, and the square-wave signal output end of the function signal generator module board is logical Capacitor C102 is crossed to connect with the base stage of one end of resistance R100 and triode Q100 respectively, the other end of capacitor C103 respectively with One end of resistance R103 is connected with the base stage of triode Q101, the emitter of the triode Q101 respectively with resistance R104 one End is connected with one end of capacitor C104, and the other end of capacitor C104 passes through the input of resistance R105 and the low-pass filter End connection, the cathode power supply output of the other end energy supply control module plate of the collector and resistance R103 of the triode Q101 End, the other end of the resistance R104 and the negative power supply output end of energy supply control module plate, the other end of the resistance R102 It is connected to ground with the emitter of triode Q100, what the input signal for collector of sampling was exported by function signal generator module board High-frequency square-wave signal and high_frequency sine wave signal composition, wherein square-wave signal is sample control signal, and sine wave signal is sampling Signal.Triode Q100 plays on-off action in circuit, and triode Q101 plays amplification, sine wave signal in circuit Triode Q100 is inputted after capacitor C100 and capacitor C101 coupling output and resistance R102 partial pressure, is cut when triode Q100 is in Only when state, sinusoidal signal introduces triode Q101 and amplifies output, that is, is in sample phase；When triode Q100 is in full When on state, sinusoidal signal introduces ground terminal, that is, is in the non-sampled stage；Square-wave signal carries out in the period set low Sampling, therefore, the frequency of square wave is exactly sample frequency, and the low-pass filter is the active low-pass filter group by two-stage cascade At effect is to filter out the clutter of high frequency, can be in the output end of low-pass filter when the frequency of square-wave signal is sufficiently high VOUT100 obtains the sine wave of one with input sinusoidal signal identical frequency, and specific sampled output signal can access The analog input end of Labview drive control module can show signal output waveform on virtual oscilloscope section, so as to It quickly completes sampling and keeps confirmatory experiment.

In the present invention, in conjunction with shown in Fig. 1, Fig. 4 and Fig. 9, the frequency characteristic module plate includes proportional component, One inertial element, proportion differential link, adder circuit, integral element and the second inertial element, the output of the proportional component End passes sequentially through the first inertial element, proportion differential link, adder circuit and integral element and second inertial element, institute State the second inertial element output end input terminal with the adding input of adder circuit and Labview drive control module respectively Connection；Each link circuit is had extremely low input offset voltage, is in most cases not required to by OP07CP activated amplifier Additional zeroing measure is wanted, application method is simple and convenient.In the present invention, the output end of multifunctional signal generator template The sine wave signal of output is connected to the input terminal VIN01 of proportional component, the output of the first inertial element at the beginning not with it is defeated Enter to synchronize and change proportionally, until transient process terminates, output could be with input holding ratio, proportion differential link output voltage The algebraical sum of oversampling ratio output and differential output, thus make to export it is undistorted, do not postpone, proportionally emerge input signal Variation, i.e. signal do not have inertia, and the signal that adder circuit is exported by input signal and finally is in OP07CP activated amplifier Negative input carries out add operation, to feed back by output signal to input terminal, reaches input signal with output signal It is synchronous；The output quantity of integral element and the time integral value of input quantity are proportional, and integral element can eliminate frequency characteristic control system Static error in system, by practical extensively on the accurate DAZ gene of the physical quantitys such as motor speed；Finally, by adjusting the Circuit parameter in two inertial elements, to feed back to the adding input of adder circuit, to change the curve of frequency characteristic Figure obtains test data and output frequency characteristic curve image, then calculate by curve image by carrying out frequency characteristic test System transter out substantially extrapolates the ginseng of hardware circuit and capacitance resistance ware finally by ssystem transfer function Number, such parameter testing is widely used in Black box technique field, is judged according to its external presentation and operated, to sentence Disconnected flight data recorder circuit structure out.

In the present invention, in conjunction with shown in Fig. 1, Fig. 4, Figure 10 and Figure 11, the electric power generation speed regulation experiment module board Be fixed on including speed regulating control panel 200 and from left to right twin shaft dc motor M1 on the DC control panel 200, Dc generator M2, rotation speed detection unit and experiment control unit are arranged on the first output shaft of the twin shaft dc motor M1 The rotation speed detection unit, the twin shaft dc motor the second output shaft of M1 pass through the drive of shaft coupling 204 and dc generator M2 Driven input shaft connection is additionally provided with attaching plug 205, grounding receptacle GND and switching control on the speed regulating control panel 200 Socket 206, Embedded System Experiment interface module plate control socket 206 with the switching by data line and connect, switching control socket 206 carry out signal interaction using P6 cattle horn socket, and switching control socket 206 greatly facilitates the signal of speed regulation and generator experimental to hand over Mutually, and the accesses of a variety of different types of controllers is adapted to.The switching control socket 200 passes through PCB motor control panel Copper foil cabling on 20 is distinguished the rotation speed detection unit and is connected with twin shaft dc motor M1, and the attaching plug 205 passes through Copper foil cabling is connect with the power end of twin shaft dc motor M1, and attaching plug 205 (and ground pin) is plugged on lower motherboard 4 On experimental power supply socket 61 (grounding receptacle 62) on, the rotation speed detection unit includes coding disk 201, light emitting source 202 and light Photodetector 203, the central axis of the coding disk 201 and the first output shaft of the twin shaft dc motor M1 are sequentially connected, institute Light emitting source 202 and photoelectric detector 203 are respectively arranged at the two sides of coding disk 201, the output end of the photoelectric detector 203 with The detection input of Embedded System Experiment interface module plate connects, and the experiment control unit includes driver for isolating, DC driven Circuit, waveform shaping circuit and speed regulation indicating unit, the driver for isolating 74LS244 isolation drive chip, the waveform are whole Shape circuit carries out shaping to waveform using CD4050BE non-inverting buffer chip.The PWM of the Embedded System Experiment interface module plate Output port is connect by driver for isolating and DC drive circuit with twin shaft dc motor M1 input control end, described The output end of photoelectric detector 203 in rotation speed detection unit passes through waveform shaping circuit and Embedded System Experiment interface module plate Detection input connection carry out waveform show (output end of photoelectric detector 203 can also by waveform shaping circuit with The counting input end PFIO connection of USB6009 data collecting card 101, can show signal on virtual oscilloscope section), along The transparent striped alternate with shading is arranged in 201 diametrical direction of coding disk, and coding disk 201 is arranged in light emitting source 202 and photoelectricity is examined It surveys between device 203, when coding disk 201 blocks light source, photoelectric detector 203 exports low level；When light emitting source 202 passes through thoroughly When bright fringe is emitted on photoelectric detector 203, photoelectric detector 203 exports high level, compiles when coding disk 201 rotates and generates one Each and every one pulse code signal, generated encoded signal have A, B two-phase, the pulse that two-phase A, B signal export phase in phase Poor 90 degree, it is same that CD4050BE can be used in A, B two-phase pulse signal and off-gauge square wave due to photoelectric encoder output Phase buffer carries out shaping to waveform and obtains standard block signal, and can be adjusted by Embedded System Experiment interface module plate The frequency size of pwm signal, and the square wave after shaping is being synchronized into display.The DC drive circuit is by 4 metal-oxide-semiconductors (metal-oxide-semiconductor Q201, metal-oxide-semiconductor Q202, metal-oxide-semiconductor Q203 and metal-oxide-semiconductor Q204) forms H-bridge circuit, since 4 metal-oxide-semiconductors use 15V electricity Pressure supplies power for, and reaches electricity by the output variation that the PWM output port of Embedded System Experiment interface module plate controls two PWM waves The kinetic energy of generation is passed to direct current by shaft coupling 204 and sent out by machine speed regulation and the purpose for turning to variation, twin shaft dc motor M1 Motor M2 arranges a small-sized DC fan 204 (F) in dc generator M2 shaft, can be used for observing twin shaft direct current drive The steering of machine M1 and revolving speed, the LED light of two Opposite direction connections of the kinetic energy supply rear class that dc generator M2 is generated later D200 and LED lamp D201 and a tungsten wire load indicator light RL are used.The LED light of two Opposite direction connections can serve to indicate that The current direction of dc generator M2, to judge the steering of dc generator M2.Tungsten wire loads indicator light RL and sends out as direct current The basic load of motor M2, light emission luminance can reflect the size of twin shaft dc motor M1 revolving speed indirectly, be existed by setting The load control switch K1 in 200 lower right corner of speed regulating control panel can choose whether access load indicator light RL, thus intuitively Observe the revolving speed of motor and generator.

In the present invention, in conjunction with shown in Fig. 1, Fig. 4, Figure 12 and Figure 13, the temperature experiment module plate includes temperature Experimental control board 300, acrylic insulating tube 301, heating Lamp cup 302, hush panel 303, temperature sensor group 304, signal are handed over Mutual interface block 305 and temperature experiment control circuit, the temperature experiment control circuit is connect with temperature sensor group 304, in institute It states and is respectively arranged with plant-grid connection plug 309 and ground connection access socket 310, electricity on four angles of temperature experimental control board 300 Source access plug 309 is located at left side, and ground connection access socket 310 is located at right side, plant-grid connection plug 309 and ground connection access socket 310 are plugged on respectively on lower motherboard 4, and plant-grid connection plug 309 and ground connection access socket 310 are good using M4 electric conductivity Banana plug, is the power input interface of entire greenhouse experiments control module, and two, left side banana plug (is inserted for plant-grid connection Head) the distance between smaller the distance between (access plug for ground connection) with two, the right banana plug and horizontally axis pair Claim arrangement, banana plug patch power supply motherboard banana bin on can work normally, four banana plugs are trapezoidal layout Purpose is placement direction of the specification module on motherboard, and maloperation reverse power connection is avoided to cause module damage.The acrylic is protected The both ends of warm pipe 301, which pass through respectively after hush panel 303 seals, to be fixed on temperature experimental control board 300, the heating Lamp cup 302 are horizontally fixed in the both ends of acrylic insulating tube 301 by hush panel 303 respectively, and temperature experimental control board 300 carries The greenhouse structure being made of acrylic insulating tube 301 and hush panel 303, be arranged in the plate face of the hush panel 303 on right side There is exhausting hole 306, as shown in figure 14, in the plate face of right side hush panel 303 and the outside fixation of the abutting exhausting hole 306 is set It is equipped with extraction fan 307, is provided in the plate face close to the temperature experimental control board 300 of 305 side of signal interaction interface block The power end of fan control switch 308, the extraction fan 307 passes through fan control switch 308 and the plant-grid connection plug 309 Electrical connection, is provided with contact pin pad hole 311, the envelope on the temperature experimental control board 300 of 303 lower end of hush panel Oralia 303 is inserted into the contact pin pad hole 311 being arranged on the temperature experimental control board 300 by L-type contact pin and passes through welding It is fixedly connected, in the present invention, acrylic insulating tube 301 is the main structure in greenhouse and is in that " work " type is columned transparent Body, hush panel 303 is used to block the both ends of acrylic insulating tube 301 as the important component of greenhouse structure, to constitute Entire greenhouse structure is simultaneously fixed on temperature experimental control board by being connected to the insertion of L-type contact pin by relatively closed greenhouse space On 300.The temperature sensor group 304 is set between the heating Lamp cup 302 in the both ends of acrylic insulating tube 301, it is described The data output end of temperature sensor group 304 passes sequentially through copper foil cabling and the signal on temperature experimental control board 300 Interactive interface seat 305 is connected with the Data Detection end of Embedded System Experiment interface module plate, and signal interaction interface block 305 uses P6 ox Corner socket and the lower right corner that temperature experimental control board 300 is set.The opening portion of the heating Lamp cup 302 is solid in mutual mirror image It is scheduled in the both ends of the acrylic insulating tube 301, the temperature sensor group 304 includes that temperature experiment is located at along same axis The first temperature sensor 304a, second temperature sensor 304b and third temperature sensor 304c on control panel 300, institute It states the first temperature sensor 304a, second temperature sensor 304b and third temperature sensor 304c protrudes into acrylic insulating tube 2 It is interior, and the first temperature sensor 304a, second temperature sensor 304b are separately positioned on acrylic insulating tube 301 or so two Edge immediately ahead of the opening portion of heating Lamp cup 302 in end, the second temperature sensor 304b are arranged in the first temperature sensing Between device 304a and third temperature sensor 304c, the first temperature sensor 304a, second temperature sensor 304b and The signal output end of three-temperature sensor 304c is pierced by after acrylic insulating tube 301 by conducting wire and is welded on temperature experiment control On panel 300, the heating computer heating control end of Lamp cup 302, the data output end of the first temperature sensor 304a, second temperature The data output end of the data output end of sensor 304b and third temperature sensor 304c by signal interaction interface block 305 and Data line is connect with the Embedded System Experiment interface module plate respectively, is provided with heating lamp in the heating Lamp cup 302, institute It states temperature experiment control circuit and includes two input nand gate U300, coupled driver U301 and power amplifier, it is described embedded The acquisition input terminal of experimental interface module board respectively with the data output end of the first temperature sensor 304a, second temperature sensor The data output end electrical connection of the data output end and third temperature sensor 304c of 304b.In the present invention, as schemed Shown in 15, the pwm signal output end of the Embedded System Experiment interface module plate is defeated with the two input nand gates U300 respectively Enter end connection, the output end of two input nand gate U300 passes sequentially through driver for isolating U301 and power amplifier and the heating The control terminal of lamp is electrically connected, and exports stable and rule PWM wave signal after carrying out shaping by two input nand gate U300, Isolation is carried out using driver for isolating U301 amplification to prevent feedback signal from damaging Embedded System Experiment interface module plate.With Asia The heating lamp in the relatively closed greenhouse that gram force insulating tube 301 and hush panel 303 are constituted, two 20W (uses tengsten lamp L300 Heat source is served as with tengsten lamp L301) and is arranged in heating Lamp cup 302, and (temperature passes the thermistor R300 of three high linearities Sensor group 304) temperature sensor (as shown in figure 15) is served as, three different positions in acrylic insulating tube 301 are placed on, Operator can arbitrarily select one of temperature feedback as temperature sensor acquisition to give Embedded System Experiment interface module plate, Strip stick High Linear thermistor is respectively adopted in the temperature sensor group 304, is equally spaced in the greenhouse, two tungsten wires The light that lamp is issued can be formed in the greenhouse to penetrating, and greenhouse temperature rapid increase is made, and sensor monitors on greenhouse different location Temperature value, be arranged in the outside of hush panel 303 using small silent extraction fan, be close to hush panel 303 and simultaneously keep the temperature acrylic Hot-air extraction in pipe 301 (in greenhouse) is to achieve the purpose that reduce greenhouse temperature.The reality fed back again by temperature sensor Border temperature is made comparisons with presetting temperature after analysis, Embedded System Experiment interface module plate output control Signal Regulation heating lamp hair Heat achievees the purpose that regulate the green house temperature, and Embedded System Experiment interface module plate output amplitude is the PWM wave signal of 3.3V；Coupling The model TLP250 optical coupler that driver U301 is used is closed, play strong and weak electric isolution in circuit and plays PWM wave signal The effect of amplification, TLP250 optical coupler signal output end PWM wave amplitude are 15V, and TLP250 optical coupler output high-frequency, difference account for The on and off that the PWM wave of empty ratio passes through control power amplifier (metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2) respectively adds to control both ends The light emission luminance of heating lamp (tengsten lamp L300 and tengsten lamp L301) in thermolamp cup 302, the control that MOS pipe is turned on or off PWM wave signal of the signal by optocoupler amplification is directly used in driving MOS pipe, high level conducting, and low level disconnects, different duties The PWM wave of ratio corresponds to two tengsten lamp L300 light emission luminance different with tengsten lamp L301, i.e. calorific value, to control indirectly Its calorific value is made, is achieved the purpose of regulating temperature；And signal necessary to entire greenhouse experiments control module has all been integrated into P6 On cattle horn socket, the signal on P6 cattle horn socket mainly includes the PWM wave control signal and three of Embedded System Experiment interface module plate The temperature acquisition signal of a temperature sensor greatly facilitates module by signal interaction, adapts to a variety of different types of Embedded System Experiments Interface connection, arrange that three short circuits column K1, K2 and K3 respectively correspond the signal interaction interface block 305 of three temperature sensors Interface, and be shorted corresponding short circuit column K1, K2 and K3 using short circuit cap and can independently select to read any one temperature sensor Temperature feedback numerical value.Fan control switch 308 can be opened when needing to greenhouse cooling, extraction fan 307 will be in greenhouse Hot-air extraction, reaches cooling purpose, in the contact pin pad hole 311 that the both ends of temperature experimental control board 300 are arranged for making The greenhouse structure being made of acrylic insulating tube 301 and hush panel 303 is fixed with L-type contact pin (right angle row's needle), and will heating The control signal of lamp (use tengsten lamp L300 and tengsten lamp L301) is transmitted in hush panel 303, to two tengsten lamp L300 and Tengsten lamp L301 carries out computer heating control, and multiple exhausting holes 306 are arranged in the plate face of the hush panel 303 for protecting to acrylic Greenhouse space ventilation and heat in warm pipe 301；And by the control signal transduction of heating lamp (tengsten lamp L300 and tengsten lamp L301) In the hush panel 203 fixed to heating Lamp cup 302, finally it is transmitted on heating lamp, the contact pin pad hole of 303 lower end of hush panel 311 for being fixed on temperature experimental control board 300 for hush panel 303 using L-type contact pin (right angle row's needle), to make entire Greenhouse structure is stably fixed on temperature experimental control board 300.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, can also make several improvements and retouch, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims

1. a kind of signal and control class group training external member case, it is characterised in that: including upper box, lower box, upper motherboard, lower mother Plate, idle expansion module plate and experiment module plate, the back edge of the upper box and the lower box back edge are hinged, it is described on The leading edge of cabinet and the lower box leading edge carry out snapping, the upper motherboard are fixed in the upper box, on described Several idle expansion module plates are plugged on motherboard, the lower motherboard is arranged in lower box, the grafting on the lower motherboard There are several experiment module plates, power supply system is provided in lower box and below lower motherboard, in the back of the lower box Face is provided with power wiring seat, the lower surface of lower motherboard is provided with power access end, the input terminal of the power supply system passes through Conducting wire and the power wiring seat are electrically connected, and the power output end of the power supply system passes through conducting wire and the lower motherboard following table The power access end in face connects, upper motherboard and it is lower on be provided with multiple experimental power supply sockets and grounding receptacle, adjacent two Experimental power supply socket and two adjacent grounding receptacles surround a free area, mutually electrical between each experimental power supply socket It connects and is connect by the copper foil cabling of lower master surface with the power access end, mutually electrically connected between each grounding receptacle It connects, on the free area that every block of experiment module plate is plugged on experimental power supply socket respectively and grounding receptacle is formed.

2. a kind of signal according to claim 1 and control class group training external member case, it is characterised in that: the idle extension The quantity of module board is equal to or more than the quantity of experiment module plate, when the upper box and lower box lid close, upper motherboard grafting When idle expansion module plate and the experiment module plate of lower motherboard grafting are in symmetrical above and below, size and function setting all phases Together, lower box bottom center or two sides are provided with one or a miniature electric telescopic rod, the miniature electric telescopic rod is stretched Contracting end is connect with the lower motherboard lower surface.

3. a kind of signal according to claim 1 or 2 and control class group training external member case, it is characterised in that: in the reality It tests and is provided with banana plug on module board, the experimental power supply socket and grounding receptacle are banana bin, the experiment module plate By banana plug respectively with matched power outlet and grounding receptacle grafting on lower motherboard, it is described free time expansion module plate with it is upper It is mutually inserted between motherboard also by the banana plug and banana bin that are mutually matched, the lower motherboard is divided into four grafting and places Region, the free area are evenly distributed in four grafting placement regions, and the experiment module plate is inserted across being plugged on one It connects on the free area for one or more being distributed in rest area and the experiment module plate is respectively across being plugged on On the free area being distributed in one or more grafting rest area.

4. a kind of signal according to claim 3 and control class group training external member case, it is characterised in that: the experiment module Plate includes the active experiment module plate of muti-piece being independently plugged in four grafting placement regions of lower motherboard and at least one piece Sampling theorem authentication module plate, sampling keep module board, variable capacitance resistance library module plate, resistance capacitance library module plate, motor Generate electricity speed regulation experiment module board, Embedded System Experiment interface module plate, temperature experiment module plate, function signal generator module board, Multifunctional signal generator module board, frequency characteristic module plate, Labview drive control module and energy supply control module plate, institute Stating energy supply control module plate is respectively source experiment module plate, sampling theorem authentication module plate, sampling holding module board, variable capacitance Resistance library module plate, resistance capacitance library module plate, electric power generation speed regulation experiment module board, Embedded System Experiment interface module plate, temperature Spend experiment module plate, function signal generator module board, multifunctional signal generator module board, frequency characteristic module plate and Labview drive control module provides working power；The variable capacitance resistance library module plate and resistance capacitance library module plate difference Module is kept with the signal input part of the active experiment module plate, the signal input part of sampling theorem authentication module plate, sampling The signal of the signal input part of plate, the signal input part of function signal generator module board and multifunctional signal generator module board Output end is attached；The control output end of the Embedded System Experiment interface module plate respectively with the electric power generation speed regulation experiment Module board, temperature experiment module plate are connected with Labview drive control module output control interface, the frequency characteristic module plate Output end, sampling theorem authentication module plate output end, sampling keep module board output end, electric power generation speed regulation experiment mould The output end of block plate and the output end of temperature experiment module plate connect with the input terminal of the Labview drive control module respectively It connects.

5. a kind of signal according to claim 4 and control class group training external member case, it is characterised in that: the active experiment Module board includes at least active low-pass filter module board, active high-pass filtering module board, active bandpass filiter module board, active product Sub-module plate, active derivative module plate, active nonlinear amplification circuit module, active linear amplification circuit module and the resistance of active band Filter circuit module.

6. a kind of signal according to claim 4 and control class group training external member case, it is characterised in that: the sampling theorem Authentication module plate includes sampling collector and low-pass filter, the input terminal and function signal generator mould of the sampling collector The output end of block plate connects, the output end of the sampling collector with pass through low-pass filter Labview drive control module Input terminal connection, sampling holding module board include monostable flipflop and sampling holder, the monostable flipflop Input terminal is connect with the output end of the multifunctional signal generator module board, and the output end of the monostable flipflop is by adopting Sample retainer is connect with the input terminal of the Labview drive control module.

7. a kind of signal according to claim 6 and control class group training external member case, it is characterised in that: the sampling acquisition Device includes resistance R100, resistance R101, resistance R102, resistance R103, resistance R104, resistance R105, capacitor C100, capacitor C101, capacitor C102, capacitor C103, capacitor C104, triode Q100 and triode Q101, the function signal generator module The sine wave signal output end of plate respectively with one end of capacitor C100, capacitor C101 anode connect, one end of capacitor C100 with The cathode of capacitor C101 with connect respectively with one end of one end of resistance R101 and resistance R102, the other end of resistance R101 and institute The collector for stating triode Q100 is connected with one end of capacitor C103, and the square-wave signal of the function signal generator module board is defeated Outlet is connect with the base stage of one end of resistance R100 and triode Q100 respectively by capacitor C102, the other end point of capacitor C103 Do not connect with the base stage of one end of resistance R103 and triode Q101, the emitter of the triode Q101 respectively with resistance R104 One end connected with one end of capacitor C104, the other end of capacitor C104 is defeated by resistance R105 and the low-pass filter Enter end connection, the cathode power supply output of the other end energy supply control module plate of the collector and resistance R103 of the triode Q101 End, the other end of the resistance R104 and the negative power supply output end of energy supply control module plate, the other end of the resistance R102 It is connected to ground with the emitter of triode Q100.

8. a kind of signal according to claim 6 and control class group training external member case, it is characterised in that: the monostable touching It sends out device and uses CD14538BE monostable flipflop chip, the sampling holder uses LF398N sampling holder chip.

9. a kind of signal according to claim 4 and control class group training external member case, it is characterised in that: the frequency characteristic Module board includes proportional component, the first inertial element, proportion differential link, adder circuit, integral element and the second inertia rings Section, the output end of the proportional component pass sequentially through the first inertial element, proportion differential link, adder circuit and integral element With second inertial element, the second inertial element output end respectively with the adding input of adder circuit and The input terminal of Labview drive control module connects.

10. a kind of signal according to claim 1 or 2 and control class group training external member case, it is characterised in that: the top box The back edge of body and the lower box back edge carried out by two hinge typed structures it is hinged, upper box along hinge typed structure backward Under rotating opening state, the angle between upper box and lower box is in 90 degree to 120 degree, is set in the positive center of the lower box It is equipped with handle, upper box carries out snapping by lock with lower box and fixes.