CN106774122A - Vending machine analogue system and control method - Google Patents
Vending machine analogue system and control method Download PDFInfo
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- CN106774122A CN106774122A CN201611202668.XA CN201611202668A CN106774122A CN 106774122 A CN106774122 A CN 106774122A CN 201611202668 A CN201611202668 A CN 201611202668A CN 106774122 A CN106774122 A CN 106774122A
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- vending machine
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/056—Programming the PLC
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
The present invention provides a kind of vending machine analogue system and control method, belongs to electric and electronic technical field.Wherein, vending machine analogue system includes：Master control set, protocol conversion apparatus and vending machine emulation terminal；Master control set is coupled with protocol conversion apparatus, and protocol conversion apparatus are coupled with vending machine emulation terminal.Operation program is write by student and is input into master control set, and verified by the vending machine emulation terminal for partly emulating.So that student is combined when PLC is learnt with practical application scene, the working service cost of PLC is not only reduced, also improve practicality of PLC when actually used.
Description
Technical field
The present invention relates to electric and electronic technical field, in particular to a kind of vending machine analogue system and control method.
Background technology
With the development of science and technology and improve, programmable logic controller (PLC) (Programmable Logic
Controller, PLC) it is widely used in the curricula of major colleges and universities.
Current most of colleges and universities PLC course teachings rest on rationalistic teaching, or teaching equipment and teaching mould mostly
Formula is single, it is impossible to the characteristics of embodying Course integration and use.Development with automation industry and the demand to inter-disciplinary talent, perhaps
Many colleges and universities have also purchased PLC experimental provisions one after another, but quantity is fairly limited, and the PLC of most of colleges and universities reaches experimental provision less than people
Using the requirement of 1, and control object species is few and simple, and experiment effect is not good.Furthermore, taught in traditional PLC courses
In, its device hardware is not perfect enough, fragile.Laboratory condition limitation is limited by, the control object of PLC is typically miniature
Object, and species is few, has that utilization rate is low, maintenance cost.Due to the limitation of control object, student can only be according to
Guide book of experiment is indiscriminately imitated, the channel of the program capability that do not get enough athletic exercise.Further, since control object excessively simplifies, lack complete
Property.Such as it is certain station on certain production line, is only capable of realizing simple functional experiment, student cannot relates to actual answering
With.
Therefore, how to effectively reduce the use cost of PLC, and improve practicality of PLC when actually used is
Current industry a great problem.
The content of the invention
In view of this, it is an object of the invention to provide a kind of vending machine analogue system and control method, it can be effective
Reduction PLC use cost, and improve practicality of PLC when actually used.
What embodiments of the invention were realized in：
In a first aspect, a kind of vending machine analogue system is the embodiment of the invention provides, including：Master control set, protocol conversion
Device and vending machine emulation terminal；The master control set is coupled with the protocol conversion apparatus, the protocol conversion apparatus and institute
State the coupling of vending machine emulation terminal.The vending machine emulation terminal, vending machine control instruction is generated for the operation according to input,
And export to the protocol conversion apparatus vending machine control instruction.The protocol conversion apparatus, for by vending machine control
System instruction is according to being input into the master control set after preset protocol.The master control set, the operation program for obtaining input, and add
Carry the operation program；The operation program is run according to the vending machine control instruction；It is additionally operable to judge the operation program
Whether operation is successful, if described run successfully, generates driving instruction, and the driving instruction is passed through into the protocol conversion apparatus
Output is to the vending machine emulation terminal, so that the vending machine emulation terminal performs corresponding moving according to the driving instruction
Make.
Further, the protocol conversion apparatus are coupled by fieldbus with the master control set.
Further, the vending machine emulation terminal passes through asynchronous transmission STD bus and the protocol conversion apparatus coupling
Close.
Further, the vending machine analogue system also includes：Supply unit, the supply unit respectively with the agreement
Conversion equipment and the master control set are coupled.
Further, the output voltage of the supply unit is 24 volts of DC voltage.
Further, the protocol conversion apparatus are serial ports adaptive device, and the preset protocol is assisted for field bus communication
View.
Further, the vending machine analogue system also includes：Input unit, the input unit and the master control set
Coupling.
Further, the master control set is programmable logic controller.
Second aspect, the embodiment of the invention provides a kind of control method, be applied to the vending machine analogue system, described
Method includes：The master control set obtains the operation program of input, and loads the operation program, and according to the vending machine control
Operation program described in instruction operation processed.The master control set judges whether the operation program is run successfully, if described run into
Work(, generates driving instruction, and the driving instruction is exported to the vending machine emulation terminal by the protocol conversion apparatus,
So that the vending machine emulation terminal performs corresponding action according to the driving instruction.
Further, the master control set obtains the operation program of input, and loads the operation program, and according to described
The step of vending machine control instruction runs the operation program, including：The master control set obtains article trading operation program, temperature
Degree control operation program, indicator lamp operation program or advertisement display operation program.The master control set loads the article trading
Operation program, the temperature control operation program, the indicator lamp operation program or the advertisement display operation program, and according to
The vending machine control instruction runs the article trading operation program, the temperature control operation program, indicator lamp fortune
Line program.
The beneficial effect of the embodiment of the present invention is：
Master control set can obtain student and edit the operation program of input, and load the operation program.It is imitative by vending machine
True terminal can be input into vending machine control instruction, and be exported to master control dress vending machine control instruction by protocol conversion apparatus
Put.Master control set then can interpolate that student edits the vending machine control instruction driving operation whether load operating program is acquired.
If editor's load operating program is driven by vending machine control instruction and runs, master control set can generate driving instruction by agreement
Conversion equipment is exported to vending machine emulation terminal, so that vending machine emulation terminal performs corresponding action according to driving instruction.Cause
This, writes operation program, and verified by the vending machine emulation terminal for partly emulating by student.So that student is in study PLC
When and practical application scene be combined, not only reduce the working service cost of PLC, also improve PLC when actually used
Practicality.
Other features and advantages of the present invention will illustrate in subsequent specification, also, partly become from specification
It is clear that or being understood by implementing the embodiment of the present invention.The purpose of the present invention and other advantages can be by being write
Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing for needing to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to these accompanying drawings
Obtain other accompanying drawings.By the way that shown in accompanying drawing, above and other purpose of the invention, feature and advantage will become apparent from.In whole
Identical reference indicates identical part in accompanying drawing.Deliberately accompanying drawing, emphasis are not drawn by actual size equal proportion scaling
It is that purport of the invention is shown.
Fig. 1 shows a kind of structured flowchart of vending machine analogue system provided in an embodiment of the present invention；
Master control set is emulated eventually with vending machine during Fig. 2 shows a kind of vending machine analogue system provided in an embodiment of the present invention
Hold the structured flowchart of interaction；
Fig. 3 shows a kind of flow chart of control method provided in an embodiment of the present invention；
Fig. 4 shows the sub-process figure of step S100 in a kind of control method provided in an embodiment of the present invention.
Icon：100- vending machine analogue systems；110- supply units；120- input units；130- vending machine emulation terminals；
140- protocol conversion apparatus；150- master control sets.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " connection ",
" coupling " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can be
Mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the present invention
In concrete meaning.
Fig. 1 is referred to, a kind of vending machine analogue system 100 is the embodiment of the invention provides, the vending machine analogue system 100
Including：Supply unit 110, input unit 120, vending machine emulation terminal 130, protocol conversion apparatus 140 and master control set 150.
Supply unit 110, protocol conversion apparatus 140 and the working power of master control set 150 are sold for providing, to ensure to sell association
View conversion equipment 140 and the normal work of master control set 150.
Input unit 120, for obtaining the operation program of user (student) write-in, and the operation program is exported to master control
Device 150.
Vending machine emulation terminal 130, vending machine control instruction is generated for obtaining user's (student) input operation, and will
Vending machine control instruction is exported to protocol conversion apparatus 140.It is additionally operable to obtain the driving instruction of the input of protocol conversion apparatus 140,
And corresponding action is performed according to the driving instruction.
Protocol conversion apparatus 140, for will be input into master control set 150 after the conversion of vending machine control instruction, are additionally operable to obtain
The driving instruction that master control set 150 sends, and the driving instruction is exported to vending machine emulation terminal 130.
Master control set 150, for obtaining the operation program of input, and loads the operation program.It is additionally operable to judge described
The vending machine control instruction whether operation program is acquired drives operation, if operation program is driven by vending machine control instruction transporting
OK, generation driving instruction is exported to vending machine emulation terminal 130 by the protocol conversion apparatus 140.
As shown in figure 1, supply unit 110 is AC-DC power supplys.Supply unit 110 can be used in and externally fed power supply coupling
Close, to obtain the alternating voltage of 220 volts of externally fed power supply.Supply unit 110 can change 220 volts of alternating voltage
It is 24 volts of DC voltage.By coupling respectively with protocol conversion apparatus 140 and master control set 150, the energy of supply unit 110
It is enough to export to protocol conversion apparatus 140 and master control set 150, with guarantee agreement conversion equipment 24 volts of DC voltage respectively
140 and the normal work of master control set 150.
Input unit 120 is used to be supplied to user (student) to edit input operation program.And by with master control set 150
Coupling, the operation program of acquisition is exported to master control set 150.It is input into by the operation program that user (student) is edited write-in
After master control set 150, formed and the data interaction between master control set 150.The input unit 120 can be write with data
Enter ability, but be not limited to, touch screen, mouse and keyboard etc..
Vending machine emulation terminal 130 can be to run main body by hardware of built-in industrial control machine.It also has can be carried out
The display interface that picture shows.Vending machine emulation terminal 130 can be shown the Simulation Interface of vending machine.Vending machine is emulated
Terminal 130 can obtain 220 volts of alternating voltage by the coupling with externally fed power supply, vending machine emulation terminal 130.Sell
Alternating voltage is carried out AC-DC conversions by cargo aircraft emulation terminal 130, and after the treatment such as voltage stabilizing, the alternating voltage energy of the treatment
Enough ensure the normal work of vending machine emulation terminal 130.
As a kind of mode, vending machine simulation model is preset with vending machine emulation terminal 130.Vending machine simulation model can
Think and draw the graphics frame of vending machine using the graphical control of computer programming language (Visual Basic, VB), and use
Text (Text) control in VB carries out necessary feature explanatory note in the graphics frame of vending machine.Ordered using in VB again
Make button (Command Button) control that input and the output button of vending machine are drawn out in the graphics frame of vending machine.This
Outward, it is its signal procedure also to use the Serial communication control (MS Comm) in VB, its can realize vending machine simulation model with it is embedding
Enter coupling between the communication serial ports of formula industrial computer.Vending machine emulation terminal 130 by driving the default vending machine simulation model,
Just the vending machine simulation model can be shown in display interface.
Various vending machine simulation run programs have also been write in vending machine simulation model.Vending machine emulation terminal 130 passes through
Asynchronous transmission STD bus (RS-232) is coupled with after protocol conversion apparatus 140, and vending machine emulation terminal 130 can be by generation
The output of vending machine control instruction is to protocol conversion apparatus 140, or the driving instruction for receiving the output of protocol conversion apparatus 140.
User is controlled operation by the display interface of vending machine emulation terminal 130, and vending machine emulation terminal 130 is just
Can be according to corresponding operation generation vending machine control instruction.Vending machine control instruction includes：Coin instruction, goods selection instruction
And temperature control instruction.
Additionally, vending machine emulation terminal 130 can be by driving the driving instruction, so that selling in vending machine simulation model
Cargo aircraft simulation run program.If the difference of driving instruction, the program that vending machine simulation model is run according to the driving instruction is not yet
Together, the action performed by vending machine simulation model is also different, and realizes different functions according to the difference of the action for performing, therefore
The state of vending machine simulation model is also different shown by the display interface of vending machine emulation terminal 130.Specifically, vending machine is emulated
Model may include according to the function that the driving of driving instruction is realized：Trading function, temperature change function, functions of indicator light and wide
Accuse display function.
Trading function can include：Coin function, goods selection function, shipment function and moves back coin function.Trading function institute
Supporting the face amount of simulation currency includes：1 yuan, 5 yuan, 10 yuan and 20 yuan.Goods selection function can support the choosing of multiple analog goods
Select, optionally, simulation goods can be 10 kinds, and it is respectively goods 1 to goods 10.Shipment function can simulation output be chosen
Corresponding goods.Move back coin function then can move back coin relay reality when currency denomination is simulated more than goods face amount by what is simulated
The function of moving back coin small change is now simulated, and the quantity of coin will be moved back and shown, wherein, the unit for moving back coin is 1 yuan.Temperature changes function can be with
Including：Temperature function and cooling function are risen, wherein, the adjustable range for rising temperature function and cooling function is -10 DEG C~50 DEG C, its regulation
Precision be 1 DEG C.Functions of indicator light includes：Temperature indicator, goods indicate function and instruction function in short supply.Wherein, temperature
Indicating function can show in the still cooling state that heats up；Goods instruction function can be more than or equal in simulation currency denomination
The display of goods face amount is red, and simulates currency denomination and show green less than goods face amount.Short supply indicates function then in certain goods
Start flicker during backorder status.Advertising display function can then be realized showing different advertisements in the different periods.
Protocol conversion apparatus 140 are input into master control set 150 after being used to change vending machine control instruction, are additionally operable to obtain master
The driving instruction that control device 150 sends, and the driving instruction is exported to vending machine emulation terminal 130.In the present embodiment, the association
Discussing conversion equipment 140 is：The preset protocol being adapted in PM125 serial ports adaptive devices, protocol conversion apparatus 140 is fieldbus
Communications protocol (PROFIBUS-DP).Specifically, protocol conversion apparatus 140 pass through fieldbus (CCLINK) and master control set
150 couplings, so as to obtain the driving instruction of the transmission of master control set 150.And pass through after the driving instruction is changed with preset protocol
Vending machine emulation terminal 130 is arrived in the output of RS-232 buses.Additionally, protocol conversion apparatus 140 are also obtained by RS-232 buses selling
The vending machine control instruction of the output of cargo aircraft emulation terminal 130, and also by the vending machine control instruction by logical after preset protocol conversion
Fieldbus is crossed to export to master control set 150.
Master control set 150 has the disposal ability of signal, and in the present embodiment, master control set 150 is Programmadle logic control
Device.Master control set 150 is by the coupling with input unit 120, so that master control set 150 can obtain user (student) edits defeated
The operation program for entering, and the operation program is loaded.The program that master control set 150 can write write-in can include, but not
It is limited to：1. the coin or bank note of pair input are added up (shipment simultaneously moves back clearing after coin)；If 2. the coin or bank note of input are more than
Equal to goods price, then corresponding goods indicator lamp is changed into red, is otherwise green；3. press corresponding to red goods indicator lamp
Select button, then the corresponding goods shipment actuating of relay 5 seconds, press green goods select button, reactionless；4. after shipment,
According to the coin or bank note and goods price of input, carry out moving back coin action, and coin quantity is moved back in display；5. according to analog temperature
Input size, control heating relay or refrigeration relay；If 6. insert coin or bank note after non-selected goods for a long time, automatically
Move back coin；7. it is in short supply to alarm (corresponding indicator lamp flicker)；Show different advertisements by different time sections.
Fig. 2 is referred to, after operation program is loaded into, master control set 150 is turned master control set 150 by fieldbus with agreement
The coupling of changing device 140, can receive the vending machine control instruction that protocol conversion apparatus 140 are input into.It should be understood that this is sold
Cargo aircraft control instruction is also the vending machine control instruction of the output of vending machine emulation terminal 130.What master control set 150 was received sells goods
Machine control instruction includes：Coin instruction, goods selection instruction and temperature control instruction.Goods selection instruction is included：Goods 1 to
The selection of goods 10.Master control set 150 can be with running the operation program according to vending machine control instruction.Specifically, master control set
150 judge whether operation program run successfully according to vending machine control instruction by correspondence.If running successfully, show that user (learns
It is raw) operation program of write-in is correct；Conversely, then mistake, the operation program of user (student) write-in needs to correct again.Work as operation
After success, master control set 150 can generate corresponding driving instruction according to goods selection instruction, and by protocol conversion apparatus
140 outputs are to vending machine emulation terminal 130, so that vending machine emulation terminal 130 performs corresponding action according to driving instruction.Can
With what is understood, the action performed by the control vending machine of master control set 150 emulation terminal 130 realizes that corresponding function can include,
But it is not limited to：Coin function, goods selection function, shipment function, move back coin function, temperature and change function, functions of indicator light and wide
Accuse display function.
Fig. 3 is referred to, the embodiment of the present invention additionally provides a kind of control method, is applied to vending machine analogue system 100.Should
Control method includes：Step S S100 and step S200.
Step S100：The master control set obtains the operation program of input, and loads the operation program, and according to described
Vending machine control instruction runs the operation program.
Step S200：The master control set judges whether the operation program is run successfully, if described run successfully, generation
Driving instruction, and the driving instruction is exported to the vending machine emulation terminal by the protocol conversion apparatus, so that institute
State vending machine emulation terminal and corresponding action is performed according to the driving instruction.
Fig. 4 is referred to, in the control method, the idiographic flow of step S100 also includes：Step S110 and step S120.
Step S110：The master control set obtains article trading operation program, temperature control operation program, indicator lamp operation
Program or advertisement display operation program；
Step S120：The master control set loads the article trading operation program, the temperature control operation program, institute
Indicator lamp operation program or advertisement display operation program are stated, and the article is run according to the vending machine control instruction and handed over
Easy operation program, the temperature control operation program, the indicator lamp operation program.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the method for foregoing description
Specific work process, may be referred to the corresponding process in aforementioned means, will not be repeated here.
In sum, the embodiment of the present invention provides a kind of vending machine analogue system 100 and control method, wherein, vending machine
Analogue system 100 includes：Master control set 150, protocol conversion apparatus 140 and vending machine emulation terminal 130；Master control set 150 with
Protocol conversion apparatus 140 are coupled, and protocol conversion apparatus 140 are coupled with vending machine emulation terminal 130.
Master control set 150 can obtain student and edit the operation program of input, and load the operation program.By vending machine
Emulation terminal 130 can be input into vending machine control instruction, and by protocol conversion apparatus 140 by vending machine control instruction export to
Master control set 150.Master control set 150 then can interpolate that student edits that the vending machine control whether load operating program be acquired refers to
Order drives operation.If editor's load operating program is driven by vending machine control instruction and runs, master control set 150 can generate drive
Dynamic instruction is exported to vending machine emulation terminal 130 by protocol conversion apparatus 140, so that vending machine emulation terminal 130 is according to drive
Dynamic instruction performs corresponding action.Therefore, operation program, and the vending machine emulation terminal 130 by partly emulating are write by student
Verified.So that student is combined when PLC is learnt with practical application scene, the working service cost of PLC is not only reduced,
Also improve practicality of PLC when actually used.
The preferred embodiments of the present invention are these are only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of vending machine analogue system, it is characterised in that including：The emulation of master control set, protocol conversion apparatus and vending machine is eventually
End；The master control set is coupled with the protocol conversion apparatus, the protocol conversion apparatus and the vending machine emulation terminal coupling
Close；
The vending machine emulation terminal, vending machine control instruction is generated for the operation according to input, and by the vending machine control
System instruction is exported to the protocol conversion apparatus；
The protocol conversion apparatus, for by vending machine control instruction according to being input into the master control set after preset protocol；
The master control set, for obtaining the operation program of input, and loads the operation program；Controlled according to the vending machine
Operation program described in instruction operation；It is additionally operable to judge whether the operation program is run successfully, if described run successfully, generation is driven
Dynamic instruction, and the driving instruction is exported to the vending machine emulation terminal, so that described by the protocol conversion apparatus
Vending machine emulation terminal performs corresponding action according to the driving instruction.
2. vending machine analogue system according to claim 1, it is characterised in that the protocol conversion apparatus are serial ports adaptation
Device, the preset protocol is field bus communication agreement.
3. vending machine analogue system according to claim 2, it is characterised in that the protocol conversion apparatus are total by scene
Line is coupled with the master control set.
4. vending machine analogue system according to claim 1, it is characterised in that the master control set is Programmadle logic control
Device processed.
5. vending machine analogue system according to claim 1, it is characterised in that the vending machine emulation terminal is by asynchronous
Transmission standard bus is coupled with the protocol conversion apparatus.
6. vending machine analogue system according to claim 1, it is characterised in that the vending machine analogue system also includes：
Supply unit, the supply unit is coupled with the protocol conversion apparatus and the master control set respectively.
7. vending machine analogue system according to claim 6, it is characterised in that the output voltage of the supply unit is 24
The DC voltage of volt.
8. vending machine analogue system according to claim 1, it is characterised in that the vending machine analogue system also includes：
Input unit, the input unit is coupled with the master control set.
9. a kind of control method, it is characterised in that be applied to the vending machine analogue system as described in claim any one of 1-8,
Methods described includes：
The master control set obtains the operation program of input, and loads the operation program, and is referred to according to vending machine control
The order operation operation program；
The master control set judges whether the operation program is run successfully, if described run successfully, generates driving instruction, and will
The driving instruction is exported to the vending machine emulation terminal by the protocol conversion apparatus, so that vending machine emulation is eventually
End performs corresponding action according to the driving instruction.
10. control method according to claim 9, it is characterised in that the master control set obtains the operation program of input,
And the operation program is loaded, and according to the step of the vending machine control instruction operation operation program, including：
It is aobvious that the master control set obtains article trading operation program, temperature control operation program, indicator lamp operation program or advertisement
Show operation program；
The master control set loads the article trading operation program, the temperature control operation program, indicator lamp operation
Program or advertisement display operation program, and according to the vending machine control instruction run the article trading operation program,
The temperature control operation program, the indicator lamp operation program.
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| CN201611202668.XA CN106774122A (en) | 2016-12-22 | 2016-12-22 | Vending machine analogue system and control method |
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| CN201611202668.XA CN106774122A (en) | 2016-12-22 | 2016-12-22 | Vending machine analogue system and control method |
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