CN110335413A - A kind of control system and vending machine - Google Patents
A kind of control system and vending machine Download PDFInfo
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- CN110335413A CN110335413A CN201910766689.1A CN201910766689A CN110335413A CN 110335413 A CN110335413 A CN 110335413A CN 201910766689 A CN201910766689 A CN 201910766689A CN 110335413 A CN110335413 A CN 110335413A
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- control
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- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 31
- 238000007689 inspection Methods 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 13
- 230000005669 field effect Effects 0.000 description 10
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 241001465382 Physalis alkekengi Species 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 235000011888 snacks Nutrition 0.000 description 2
- 241001286345 Cervaria rivini Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/002—Vending machines being part of a centrally controlled network of vending machines
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
- G07F9/026—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus for alarm, monitoring and auditing in vending machines or means for indication, e.g. when empty
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1877—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings controlling a plurality of loads
Abstract
This application involves a kind of control system and vending machines, belong to vending machine technical field.The control system includes: wiring board, is set to M electromagnet interface, control circuit and M solenoid driver circuit on wiring board.Each solenoid driver circuit is connected with control circuit and corresponding electromagnet interface.Each solenoid driver circuit includes: first switch tube, second switch, first resistor, second resistance.Control circuit is used for each solenoid driver circuit transmission level signal, control the on or off of corresponding first switch tube, and then control the on or off of second switch, and then the energization or power-off of corresponding electromagnet interface are controlled, to control opening or closing for corresponding channel of selling goods.Realize that the level signal for exporting control circuit is converted into one big voltage, has the signal of high current drive capability to electromagnet, using the combination of first switch tube and second switch to realize that small level voltage controls power supply into electric big voltage.
Description
Technical field
The application belongs to vending machine technical field, and in particular to a kind of control system and vending machine.
Background technique
Vending machine is the commonly used equipment of business automation, it is not limited by time, place, can save manpower, facilitate friendship
It easily, is a kind of completely new retailing form, the micro supermarket for the 24 HOUR ACCESS that is otherwise known as.Current vending machine is broadly divided into
Three kinds: beverage dispenser, snacks vending machine, synthesis (beverage+snacks) vending machine.
Current vending machine, each cargo path have its individual control system, so that it is toward upper layer hardware system set
When have the demand and design difficulty of a large amount of cabling and wiring, and one cargo path of every increase just needs corresponding to increase by one
A control system, so that increased costs.
Summary of the invention
In consideration of it, the embodiment of the present application is to provide a kind of control system and vending machine, to improve the above problem.
Embodiments herein is achieved in that
In a first aspect, the embodiment of the present application provides a kind of control system, it is applied to vending machine, the control system is used for
Control is located at the M respective opening and closing in channel of selling goods of the vending machine same layer；The control system includes: route
Plate；M electromagnet interface being set on the wiring board；Each electromagnet interface is used to installation electromagnet, works as institute
Set-up of control system is stated when the vending machine, the electromagnet being set on the M electromagnet interface is located at correspondingly
The exit in the M channels of selling goods；The control circuit being set on the wiring board；One by one with the M electromagnet interface
Corresponding M solenoid driver circuit, the M solenoid driver circuit are set on the wiring board, and with the control
Circuit connection processed, each solenoid driver circuit include: first switch tube, second switch, first resistor, the second electricity
Resistance；The first end of the first switch tube is connect with the control circuit, the second end of the first switch tube and described first
The first end of switching tube connects, and the second end of the first switch tube is also grounded, the third end of the first switch tube with it is described
One end of first resistor connects, and the other end of the first resistor is connect with one end of the second resistance, the first resistor
The other end also connect with the first end of the second switch, the other end of the second resistance and the second switch
The connection of third end, the third end of the second switch is also used to connect with a power supply, the second end of the second switch and
Corresponding electromagnet interface connection；The control circuit is used for the solenoid driver circuit transmission level signal, control pair
The on or off for the first switch tube answered, and then the on or off of the second switch is controlled, and then control corresponding
The energization or power-off of electromagnet interface, to control opening or closing for corresponding channel of selling goods, wherein M is more than or equal to 1
Integer.
In the embodiment of the present application, the control to the M being located on the same floor channels of selling goods is realized using the same control system,
So that the difficulty of cabling and wiring required when it is toward upper layer hardware system set reduces, can flexibly extend as needed
It sells goods channel, increases control system without corresponding.In addition, realized using the combination of first switch tube and second switch by
The level signal that control circuit exports is converted into one big voltage, has the signal of high current drive capability to electromagnet, to realize
Small level voltage controls power supply into the big voltage of electricity.
A kind of possible embodiment of embodiment, each solenoid driver circuit also wrap with reference to first aspect
It includes: discharging diode, the cathode for discharging diode is connect with the second end of the second switch, described to discharge diode
Plus earth.Diode is discharged by setting to discharge electromagnet generation after the voltage being applied to above electromagnet cancels
Backward voltage is (since electromagnet is inductive load, after the voltage revocation being applied to above electromagnet, due on inductive load
Surface current can only be consecutive variations, so that producing a reversed electromotive force on electromagnet, that is, produce one
A backward voltage), so that protecting solenoid driver circuit not to be reversed voltage damage enhances the stability and reliability of circuit.
A kind of possible embodiment of embodiment with reference to first aspect, the control system further include: be set to described
On wiring board with the one-to-one M electromagnet detection circuit of the M electromagnet interface, each electromagnet detection electricity
Road is used to detect whether corresponding electromagnet interface is equipped with electromagnet, and each electromagnet detection circuit includes: to adopt
Sample circuit, operational amplifier circuit, one end of the sample circuit are connected with one end of corresponding electromagnet interface, the sample circuit
The other end is connect with the first input end of the operational amplifier circuit, the second input terminal and the electromagnet interface of the operational amplifier circuit
One end connection, the output end of the operational amplifier circuit are connect with the control circuit.In the embodiment of the present application, by acquiring electromagnet
The voltage signal of interface, and be transferred to control circuit after operational amplifier circuit amplifies detects corresponding electromagnetism with this
Whether iron interface is equipped with electromagnet, enhances the applicability and reliability of circuit.
A kind of possible embodiment of embodiment with reference to first aspect, each electromagnet detection circuit are also wrapped
Include: the output end of filter circuit, the operational amplifier circuit is connect through the filter circuit with the control circuit.The embodiment of the present application
In, the ripple in the voltage signal of operational amplifier circuit output is filtered out using filter circuit, to reduce interference, that improves testing result can
By property.
A kind of possible embodiment of embodiment with reference to first aspect, the control system further include: be set to described
M indicator light interface on wiring board, each indicator light interface is used to installation indicator light, when the set-up of control system
When the vending machine, a channel one-to-one correspondence of selling goods of the indicator light and the M being set on the M indicator light interface；With
And the drive circuit of indicator connecting with the control circuit, the drive circuit of indicator are set on the wiring board, institute
State drive circuit of indicator using string turn and shift register by the M indicator light interface pass through chain structure series connection.This Shen
Please in embodiment, turned using string and shift register by the M indicator light interface by chain structure series connection, greatly reduce
Use to the pin of control circuit, saves the pin resource of control circuit.
A kind of possible embodiment of embodiment with reference to first aspect, the control system further include: be set to described
M lamp inspection slowdown monitoring circuit on wiring board, the corresponding indicator light interface of a lamp inspection slowdown monitoring circuit, each lamp inspection
Slowdown monitoring circuit is used to detect whether corresponding indicator light interface is equipped with indicator light, and each lamp inspection slowdown monitoring circuit includes: to compare
Device, the first input end of the comparator are connected with corresponding indicator light interface, the second input terminal of the comparator and reference
Voltage connection, the output end of the comparator are connect with the control circuit.In the embodiment of the present application, pass through detection indicator light
Voltage difference variation detects whether corresponding indicator light interface is equipped with indicator light with this, enhance circuit applicability and
Reliability.
A kind of possible embodiment of embodiment with reference to first aspect, the vending machine further includes host computer, the control
System processed further include: the RS485 communicating circuit being set on the wiring board, the RS485 communicating circuit and control electricity
Road connection, the RS485 communicating circuit for realizing the control system and the host computer communication.The embodiment of the present application
In, the communication with host computer is realized by using RS485 communicating circuit, on the one hand can be saved cabling space, on the other hand be made
Multiple sub- equipment can easily be expanded by obtaining.
A kind of possible embodiment of embodiment with reference to first aspect, the control system further include: be set to described
The rotary dip switch connecting with the control circuit on wiring board is set by the way that the numerical value of the rotary dip switch is arranged
The fixed control system is located at the level number of the vending machine.In the embodiment of the present application, control is set using rotary dip switch
System is located at the level number of the vending machine, allows every layer of control system just the same, is assembling or extending vending machine
When layer structure, without considering the sequence of the corresponding control system of each layer, controlled relative to by way of program setting to set
System processed is located at for the mode of the level number of vending machine, when to assemble or extend vending machine due to this mode, for example to examine
Consider the sequence of the corresponding control system of each layer, therefore enhances the flexibility of vending machine assembling or extension.
Second aspect, the embodiment of the present application provide a kind of control system, are applied to vending machine, and the control system is used for
Control is located at the M respective opening and closing in channel of selling goods of the vending machine same layer；The control system includes: route
Plate；M electromagnet interface being set on the wiring board, each electromagnet interface are used to installation electromagnet, work as institute
Set-up of control system is stated when the vending machine, the electromagnet being set on the M electromagnet interface is located at correspondingly
The exit in the M channels of selling goods；Control circuit, the control circuit are set on the wiring board；With the M electromagnetism
The one-to-one M solenoid driver circuit of iron interface, the M solenoid driver circuit are set on the wiring board, and
It is connect with the control circuit, the level signal that each solenoid driver circuit is used to be sent according to control circuit controls
The energization or power-off of corresponding electromagnet interface, and then control opening or closing for corresponding channel of selling goods；M indicator light connects
Mouthful, the M indicator light interface is set on the wiring board, and each indicator light interface is used to installation indicator light, when
The set-up of control system when vending machine, sell goods with the M by the indicator light being set on the M indicator light interface
Channel corresponds；And the drive circuit of indicator connecting with the control circuit, the drive circuit of indicator are set to
On the wiring board, the drive circuit of indicator uses string turn and the M indicator light interface is passed through chain by shift register
Formula structures in series, wherein M is the integer more than or equal to 1.
In conjunction with a kind of possible embodiment of second aspect embodiment, each solenoid driver circuit includes:
First switch tube, second switch, first resistor, second resistance；The first end of the first switch tube and the control circuit
Connection, the second end of the first switch tube are connect with the first end of the first switch tube, and the second of the first switch tube
End is also grounded, and the third end of the first switch tube is connect with one end of the first resistor, the other end of the first resistor
It being connect with one end of the second resistance, the other end of the first resistor is also connect with the first end of the second switch,
The other end of the second resistance is connect with the third end of the second switch, and the third end of the second switch is also used to
It is connect with a power supply, the second end of the second switch is connected with corresponding electromagnet interface；The control circuit be used for
Each solenoid driver circuit transmission level signal controls the on or off of corresponding first switch tube, and then controls
The on or off of the second switch, and then the energization or power-off of corresponding electromagnet interface are controlled, to control correspondence
Channel of selling goods open or close.
In conjunction with a kind of possible embodiment of second aspect embodiment, each solenoid driver circuit is also wrapped
It includes: discharging diode, the cathode for discharging diode is connect with the second end of the second switch, described to discharge diode
Plus earth.
In conjunction with a kind of possible embodiment of second aspect embodiment, the control system further include: be set to described
On wiring board with the one-to-one M electromagnet detection circuit of the M electromagnet interface, each electromagnet detection electricity
Road is used to detect whether corresponding electromagnet interface is equipped with electromagnet, and each electromagnet detection circuit includes: to adopt
Sample circuit, operational amplifier circuit, one end of the sample circuit are connected with one end of corresponding electromagnet interface, the sample circuit
The other end is connect with the first input end of the operational amplifier circuit, the second input terminal and the electromagnet interface of the operational amplifier circuit
One end connection, the output end of the operational amplifier circuit are connect with the control circuit.
In conjunction with a kind of possible embodiment of second aspect embodiment, each electromagnet detection circuit is also wrapped
Include: the output end of filter circuit, the operational amplifier circuit is connect through the filter circuit with the control circuit.
In conjunction with a kind of possible embodiment of second aspect embodiment, the control system further include: be set to described
M lamp inspection slowdown monitoring circuit on wiring board, the corresponding indicator light interface of a lamp inspection slowdown monitoring circuit, each lamp inspection
Slowdown monitoring circuit is used to detect whether corresponding indicator light interface is equipped with indicator light, and each lamp inspection slowdown monitoring circuit includes: to compare
Device, the first input end of the comparator are connected with corresponding indicator light interface, the second input terminal of the comparator and reference
Voltage connection, the output end of the comparator are connect with the control circuit.
In conjunction with a kind of possible embodiment of second aspect embodiment, the vending machine further includes host computer, the control
System processed further include: the RS485 communicating circuit being set on the wiring board, the RS485 communicating circuit and control electricity
Road connection, the RS485 communicating circuit for realizing the control system and the host computer communication.
In conjunction with a kind of possible embodiment of second aspect embodiment, the control system further include: be set to described
The rotary dip switch connecting with the control circuit on wiring board is set by the way that the numerical value of the rotary dip switch is arranged
The fixed control system is located at the level number of the vending machine.
The third aspect, the embodiment of the present application also provides a kind of vending machines, comprising: K layers of structure, every layer of corresponding installation one
Such as above-mentioned first aspect embodiment and/or the control system that any possible embodiment of embodiment provides with reference to first aspect
System, or such as above-mentioned second aspect embodiment and/or any possible embodiment offer for combining second aspect embodiment
Control system, and every layer includes that M sells goods channels, wherein K, M are the integer more than or equal to 1；And host computer, it is described
Host computer is connect with every layer of control system.
Other feature and advantage of the application will be illustrated in subsequent specification, also, partly be become from specification
It is clear that being understood and implementing the embodiment of the present application.The purpose of the application and other advantages can be by written
Specifically noted structure is achieved and obtained in specification and attached drawing.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.By the way that shown in attached drawing, above and other purpose, the feature and advantage of the application will be more clear.In whole
Identical appended drawing reference indicates identical part in attached drawing.Attached drawing, emphasis deliberately are not drawn by actual size equal proportion scaling
It is that the purport of the application is shown.
Fig. 1 shows a kind of structural schematic diagram of vending system provided by the embodiments of the present application.
Fig. 2 shows a kind of structural schematic diagrams of control system provided by the embodiments of the present application.
Fig. 3 shows a kind of circuit diagram of solenoid driver circuit provided by the embodiments of the present application.
Fig. 4 shows the structural schematic diagram of another control system provided by the embodiments of the present application.
Fig. 5 shows a kind of circuit diagram of electromagnet detection circuit provided by the embodiments of the present application.
Fig. 6 shows the structural schematic diagram of another control system provided by the embodiments of the present application.
Fig. 7 shows a kind of circuit diagram of drive circuit of indicator provided by the embodiments of the present application.
Fig. 8 shows the structural schematic diagram of another control system provided by the embodiments of the present application.
Fig. 9 shows a kind of circuit diagram of lamp inspection slowdown monitoring circuit provided by the embodiments of the present application.
Icon: 1- vending system；10- vending machine；20- client；30- server；100- control system；110-
Wiring board；120- control circuit；130- solenoid driver circuit；140- electromagnet interface；150- electromagnet detection circuit；
160- indicator light interface；170- drive circuit of indicator；180- lamp inspection slowdown monitoring circuit.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is described, and is shown
So, described embodiment is some embodiments of the present application, instead of all the embodiments.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that term " on ", "lower", "left", "right", etc. the orientation of instructions or
Positional relationship be based on the orientation or positional relationship shown in the drawings or this application product using when the orientation usually put or
Positional relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, art
Language " first ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in this application.
The embodiment of the present application provides a kind of vending system 1, as shown in Figure 1, comprising: client 20, server 30 and sells
Cargo aircraft 10.Wherein, client 20 may be mounted on user terminal, for example, user terminal, which can may be, but not limited to, is not limited to intelligent hand
Machine, tablet computer, mobile internet surfing equipment (Mobile Internet Device, MID), personal digital assistant (Personal
Digital Assistant, PDA) etc. equipment.Client 20 carries out data interaction, server 30 by network and server 30
Data interaction is carried out by network and vending machine 10, for example, user scans the two dimensional code on vending machine 10 by user terminal, into
Enter the page of selling goods, required commodity are selected in the page and place an order, after receiving order request from the background, is sent to vending machine 10
Shipment instruction, shipment instruction instruction to which layer, how much goods are gone out at which cargo path, and vending machine 10 is instructed according to the shipment and carried out
Corresponding shipment operation.
Wherein, above-mentioned server 30, including but not limited to network server, database server, cloud server etc..
Vending machine 10 provided by the embodiments of the present application, including K layers of structure, every layer of structure include M channels of selling goods, for example,
Including 10 layers, every layer includes 20 channels of selling goods.Wherein, K and M is the positive integer more than or equal to 1, and size depends on design
It needs, for example, place biggish for some flow-rate ratios, corresponding shopping need is also larger, and vending machine 10 can be set at this time
It counts more greatly namely K and M value can be relatively larger.
Every layer is provided with corresponding control system 1, which sells goods that channel is respective to be beaten for controlling this layer of M
It is open and close, namely the shipment of control cargo.Corresponding, which further includes host computer, the host computer and every layer of control
System connection processed, for being that server 30 is communicated with backstage, for example, the shipment instruction control pair sent according to server 30
The control system of layer is answered to carry out shipment operation.
In order to make it easy to understand, the control system to every layer is illustrated below.Wherein, the corresponding control system of different layers
The included hardware element of uniting can be it is different, be also possible to it is identical, even if before comprising identical hardware element
It puts, it can also can be different according to overall space the size quantity namely quantity different with how much settings of required cargo path.
As an implementation, as shown in Fig. 2, the control system 100 includes wiring board 110 and is set to the wiring board
Control circuit 120, M electromagnet interface 140 and M solenoid driver circuit 130 on 110.
Each electromagnet interface 140 is used to installation electromagnet, when control system 100 is set to vending machine 10, setting
It is located at the exit in M channels of selling goods correspondingly in the electromagnet on M electromagnet interface 140, it is corresponding by controlling
The on/off electricity of electromagnet interface 140, and then control opening or closing for corresponding channel of selling goods.Electromagnet under normal circumstances
Cargo is blocked, when having shipment instruction, the electromagnetic actuation in the corresponding channel of selling goods of control discharges cargo, then restores electromagnetism
Iron off-position, other cargos in the channel of selling goods are since gravity slips down at electromagnet automatically, to block cargo.
It is set to equal with the M one-to-one M solenoid driver circuit 130 of electromagnet interface 140 on wiring board 110
It is connect with control circuit 120, the level signal that each solenoid driver circuit 130 is used to be sent according to control circuit 120 controls
The energization or power-off of corresponding electromagnet interface 140, and then control opening or closing for corresponding channel of selling goods.Wherein, it controls
Circuit 120 includes processor, which can be a kind of IC chip, the processing capacity with signal.Above-mentioned place
Reason device can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit
(Network Processor, NP) etc.；Can also be digital signal processor (Digital Signal Processor,
DSP), specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate
Array (Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or crystal
Pipe logical device, discrete hardware components.General processor can be microprocessor or the processor is also possible to any routine
Processor etc..
In order to make it easy to understand, being illustrated below in conjunction with solenoid driver circuit 130 shown in Fig. 3.As shown in figure 3,
Solenoid driver circuit 130 includes: first switch tube Q1, second switch Q2, first resistor R1, second resistance R2.First opens
The first end for closing pipe Q1 is connect with control circuit 120, and the second end of first switch tube Q1 and the first end of first switch tube Q1 connect
It connecing, the second end of first switch tube Q1 is also grounded, and the third end of first switch tube Q1 is connect with one end of first resistor R1, and first
The other end of resistance R1 is connect with one end of second resistance R2, the other end of first resistor R1 also with second switch Q2 first
End connection, the other end of second resistance R2 are connect with the third end of second switch Q2, and the third end of second switch Q2 is also used
Yu Yuyi power supply (V_Power) connection, the second end of second switch Q2 are connected with corresponding electromagnet interface 140.Control electricity
Road 120 is used to control conducting or the pass of corresponding first switch tube Q1 to each 130 transmission level signal of solenoid driver circuit
It is disconnected, and then the on or off of second switch Q2 is controlled, and then control the energization or power-off of corresponding electromagnet interface 140,
To control opening or closing for corresponding channel of selling goods.
Optionally, first switch tube Q1 is NPN triode, and second switch Q2 is P-channel field-effect transistor (PEFT) pipe, at this point, first
The base stage of switching tube Q1 is connect with control circuit 120, and optionally, the base stage of first switch tube Q1 is through a resistance R3 and control circuit
120 connections, the emitter of first switch tube Q1 are connect with the base stage of first switch tube Q1, optionally, the hair of first switch tube Q1
Emitter-base bandgap grading is connect through a resistance R4 with the base stage of first switch tube Q1, and the emitter of first switch tube Q1 is also grounded, first switch tube
The collector of Q1 is connect with one end of first resistor R1, and the other end of first resistor R1 is connect with one end of second resistance R2, the
The other end of one resistance R1 is also connect with the grid of second switch Q2, and the other end of second resistance R2 is with second switch Q2's
Source electrode connection, the source electrode of second switch Q2 is also used to connect with a power supply, the drain of second switch Q2 and corresponding electromagnetism
Iron interface 140 connects.Of course, it should be understood that above-mentioned first switch tube Q1 is also possible to N-channel field-effect tube, it is corresponding
Second switch Q2 may be PNP triode, at this point, the grid of N-channel field-effect tube is equivalent to the base stage of NPN triode, N
The drain of channel field-effect pipe is equivalent to the collector of NPN triode, and the source electrode of N-channel field-effect tube is equivalent to NPN triode
Emitter；Similarly, the base stage of PNP triode is equivalent to the grid of P-channel field-effect transistor (PEFT) pipe, and the collector of PNP triode is equivalent
In the drain of P-channel field-effect transistor (PEFT) pipe, the emitter of PNP triode is equivalent to the source electrode of P-channel field-effect transistor (PEFT) pipe.
When some channel of selling goods needs shipment, control circuit 120 is to the corresponding solenoid driver circuit in channel of selling goods
130 send high level signal, control the conducting of corresponding first switch tube Q1, and then control the conducting of second switch Q2, make
It obtains corresponding electromagnet interface 140 to be powered, so that the electromagnetic actuation of the electromagnet interface 140 is set to, to control correspondence
Channel of selling goods opening, discharge cargo, after preset interval, control circuit 120 is to the corresponding solenoid actuated in channel of selling goods
Circuit 130 sends low level signal, controls the shutdown of corresponding first switch tube Q1, and then control the pass of second switch Q2
It is disconnected, so that corresponding electromagnet interface 140 powers off, so that being set to the electromagnet of the electromagnet interface 140, it is disconnected to restore electromagnet
Electricity condition, so that corresponding channel closing of selling goods.
Wherein, above-mentioned low level indicates that voltage value is lower than the voltage of the first numerical value, and the first numerical value is one in industry
Common numerical value.In the embodiment of the present invention, the first numerical value can be 0V, i.e. low level is 0V.High level indicates that voltage value is higher than the
The voltage of two numerical value, second value are a common numerical value in industry.For example, in the embodiment of the present invention, second value can be with
For 3.3V, i.e. high level is 3.3V.
In the embodiment of the present application, which is realized by the combination of triode and field-effect tube will control
The high level signal that circuit 120 processed exports is converted into one big voltage, has the signal of high current drive capability to electromagnet, realizes
Small level voltage controls power supply into the big voltage of electricity.Using first switch tube Q1 as NPN triode, second switch Q2 is P-channel
For field-effect tube, in the case where no shipment operates, the pin of processor keeps low level, that is, 0V, when there is shipment instruction
It assigns then, processor control pin is set to high level, that is, 3.3V, and first switch tube Q1 is connected in 3.3V, first resistor
R1 is equivalent to ground connection, and first resistor R1 and second resistance R2 are divided so that voltage directly occur in the grid and source electrode of second switch Q2
Official post second switch Q2 conducting, second switch Q2 have the driving capability of high current, can not have V_Power voltage lossy
Pass to electromagnet.Low level, that is, 0V are set to preprocessor control pin when reaching preset time, to close first
Switching tube Q1, at this moment the collector and emitter of first switch tube Q1 is equivalent to open circuit, and first resistor R1 is equivalent to open circuit, and second
The grid of switch Q2 is pulled upward to V_Power by second resistance R2, and the grid of second switch Q2 and the voltage difference of source electrode are 0, second
Switch Q2 shutdown closes electromagnet and is powered.
As an alternative embodiment, each solenoid driver circuit 130 is further include: discharge diode D1, unload
The cathode for putting diode D1 is connect with the second end of second switch Q2, discharges the plus earth of diode D2.Due to electromagnet
It is inductive load, after the voltage revocation being applied to above electromagnet, since surface current can only continuously be become on inductive load
Change, so that producing a reversed electromotive force on electromagnet, that is, produces a backward voltage, this is discharged
The effect of diode D1 is to discharge this backward voltage, so that solenoid driver circuit be protected not to be reversed voltage damage.
As an alternative embodiment, whether electromagnet is installed for the ease of detection electromagnet interface 140, and
Whether the electromagnet of installation breaks down, as shown in figure 4, the control system 100 further include: be set on wiring board 110 and M
The one-to-one M electromagnet detection circuit 150 of a electromagnet interface 140.The corresponding electromagnet of one electromagnet interface 140
Detection circuit 150, each electromagnet detection circuit 150 are used to detect whether corresponding electromagnet interface 140 is equipped with electromagnetism
Iron.Under this kind of embodiment, user can according to need it is selective electromagnet is installed in electromagnet interface 140 so that electric
The installation of magnet becomes very flexibly.Then it can detect whether corresponding electromagnet interface 140 pacifies by electromagnet detection circuit 150
Equipped with electromagnet, the channel of selling goods for being equipped with electromagnet is renumberd.For example, certain layer is by 20 electromagnet interfaces
140, corresponding channel of selling goods marked as 1-20, user can choose 10 electromagnet interfaces 140 therein installation electromagnetism
Iron, it is assumed that corresponding channel of selling goods is 1,3,5,7,9,11,13,15,17,19, then can be numbered, be followed successively by it again
1-10.
Wherein, as shown in figure 5, each electromagnet detection circuit 150 includes: sample circuit, operational amplifier circuit, sample circuit
One end of one end and corresponding electromagnet interface 140 connect, the other end of sample circuit and the first input end of operational amplifier circuit
Connection, the second input terminal of operational amplifier circuit are connect with one end of the electromagnet interface 140, the output end and control electricity of operational amplifier circuit
Road 120 connects.
Wherein, sample circuit includes sampling resistor, and one end of sampling resistor connects with one end of corresponding electromagnet interface 140
It connects, the other end of sampling resistor and the first input end of operational amplifier circuit connect, and are also grounded.
Operational amplifier circuit is for output after amplifying the voltage that sample circuit acquires to control circuit 120, control circuit
120 may know that whether the electromagnet interface 140 is equipped with electromagnet according to the voltage signal, and installation electromagnet whether
It breaks down.For example, when control circuit 120 sends high level signal to solenoid driver circuit 130, if control circuit 120 connects
When the voltage signal that the electromagnet detection circuit 150 corresponding with the solenoid driver circuit 130 received is sent is greater than 0, show
The electromagnet interface 140 is equipped with electromagnet, and the numerical value of the voltage signal is in some section under normal circumstances, if the voltage is believed
Number numerical value it is excessive or too small, show installation electromagnet whether break down.As an implementation, the operational amplifier circuit
Circuit diagram can be as shown in Figure 4.
The ripple etc. in level signal in order to reduce operational amplifier circuit output, optionally, each electromagnet detection circuit 150
It can also include: filter circuit, the output end of operational amplifier circuit is connect through filter circuit with control circuit 120.The filter circuit
It can be RC filter circuit.
It is which is sold goods channel as an alternative embodiment, for the ease of knowing vending machine 10 in shipment
It is which channel of selling goods needs to replenish, as shown in fig. 6, control system 100 further include: be set in shipment, and when replenishing
M indicator light interface 160 and drive circuit of indicator 170 on wiring board 110.It should be noted that in this kind of embodiment party
Under formula, which can not also include electromagnet detection circuit 150.
Each indicator light interface 160 is used to installation indicator light, when control system 100 is set to vending machine 10, setting
It is corresponded in the indicator light on M indicator light interface 160 with M channels of selling goods namely corresponding one an of channel of selling goods refers to
Show lamp, for prompting the shipment in the channel of selling goods and replenishing.It should be noted that the application is corresponding with a channel of selling goods
One indicator light describes, if when corresponding 2 indicator lights in channel of selling goods, the quantity of corresponding indicator light interface 160
It increase accordingly one times.
Drive circuit of indicator 170 is connect with control circuit 120 and with M indicator light interface 160, indicator light interface
160 for installing indicator light.Drive circuit of indicator 170 is used to go control pair according to the control signal that control circuit 120 is sent
The indicator light flashing answered or the function of lighting realization prompt shipment or replenish.
As an implementation, which can be the LED lamp drive circuit being often used at present,
IC, such as AMC7150, SB42511, CAT4201, LM3402, MAX16818 are driven comprising LED.As another embodiment,
As shown in fig. 7, the indicator light circuit is turned using string and shift register connects M indicator light interface 160 by chain structure,
So that control circuit 120 only just can control M indicator light interface 160 by four signal wires, greatly reduce to control electricity
The use of the pin of processor in road 120 saves the pin resource of processor.
In order to make it easy to understand, being illustrated below with reference to drive circuit of indicator 170 shown in Fig. 7, wherein need to illustrate
, illustrate only in Fig. 7 and turn comprising 2 strings and the drive circuit of indicator 170 of shift register, and Fig. 7 is with indicator light
Exemplary to carry out for LED bi-colour light, as can be seen from Figure 7 a string turns and shift register can connect 4 instructions
Lamp, 2 strings turn and shift register can connect 8 indicator lights, when the quantity M of indicator light is greater than 8, are turned simultaneously by increasing string
The quantity of shift register increases a string and turns simultaneously shift LD such as when the quantity of indicator light, which is greater than 8, is less than or equal to 12
Device；When the quantity of indicator light, which is greater than 12, is less than or equal to 16, increases by two strings and turn simultaneously shift register, remaining feelings
Condition is no longer illustrated.Wherein, increased string turns the connection type and the connection type phase of the U2 chip in Fig. 7 of simultaneously shift register
Together.String in Fig. 7 turns and 14,12, the 11 of shift register these three pins are that control pin is connect with control circuit 120, and 13
Pin is that enabled pin is also connect with control circuit 120, so that control circuit 120 only just can control M by four signal wires
Indicator light.
Wherein, indicator light shown in the embodiment of the present application can be LED bi-colour light (as can issuing pair of feux rouges and green light
Colored lights), certain indicator light is also possible to LED tri coloured lantern (tri coloured lantern as issued feux rouges, green light, blue light) or LED is monochromatic
Lamp.When for LED monochromatic burner, at this time string turn and shift register connect a LED monochromatic burner only need a pin namely this
When one string turn and shift register can connect 8 indicator lights.When LED tri coloured lantern, string turns at this time and shift register connects
One LED tri coloured lantern needs three pins, and a string turns and shift register can connect 2 indicator lights, and remaining two are drawn
Foot (QG, QH of U1 chip the two pins) in such as Fig. 7 turn with another string and one of pin of shift register (such as
The QA of U2 chip this pin in Fig. 7) 1 indicator light can be connected jointly, so that and 2 strings turn and shift register can
To connect 5 LED tri coloured lanterns, three 2 strings turn and shift register can connect 8 LED tri coloured lanterns.
As an alternative embodiment, whether being equipped with indicator light for the ease of detection indicator light interface 160, such as scheme
Shown in 8, the control system 100 further include: M lamp inspection slowdown monitoring circuit 180 being set on wiring board 110, a lamp inspection slowdown monitoring circuit
A 180 corresponding indicator light interfaces 160.Each lamp inspection slowdown monitoring circuit 180 is used to detect whether corresponding indicator light interface 160 pacifies
Equipped with indicator light, each lamp inspection slowdown monitoring circuit 180 includes: comparator, and the first input end of comparator connects with corresponding indicator light
Mouth 160 connects, and the second input terminal of comparator is connect with reference voltage, and the output end of comparator is connect with control circuit 120.It is logical
The voltage difference variation of detection indicator light is crossed, to determine in instruction light trough whether there is indicator light insertion.It should be noted that in this kind
Under embodiment, control system 100 can not also include electromagnet detection circuit 150.Under this kind of embodiment, user can root
Indicator light is installed in indicator light interface 160 according to needs selectivity, so that the installation of indicator light becomes very flexibly.Then can lead to
It crosses lamp inspection slowdown monitoring circuit 180 and detects whether corresponding indicator light interface 160 is equipped with indicator light, selling goods for indicator light is logical to being equipped with
Road is renumberd.For example, certain layer is by 20 indicator light interfaces 160, corresponding channel of selling goods marked as 1-20,
User can choose 10 indicator light interfaces 160 therein installation indicator light, it is assumed that corresponding channel of selling goods is 1,3,5,7,9,
11,13,15,17,19, then it can be numbered again, be followed successively by 1-10.
Optionally, as an implementation, the circuit diagram of the lamp inspection slowdown monitoring circuit 180 can be refering to shown in Fig. 9
Schematic diagram.By detecting the voltage change of LED bi-colour light red light part, to determine whether having lamp insertion, when LED bi-colour light does not have
When insertion, the voltage of the node voltage LED1 in Fig. 9 is still 3.3V, is greater than reference voltage Vref, and comparator exports logic electricity
Flat 1, it is shown to be no indicator light insertion, when LED bi-colour light is inserted into indicator light interface 160, at this point, lamp is bright, the section in Fig. 9
The voltage of point voltage LED1 is pulled low so that being less than reference voltage Vref, and comparator exports logic level 0, shows it is to have finger at this time
Show lamp insertion.Of course, it should be understood that above-mentioned decision logic is the second input terminal using first input end as non-inverting input terminal
For inverting input terminal, if first input end is inverting input terminal, the second input terminal is non-inverting input terminal, judgement at this time
Logic is exactly the opposite, i.e., at this point, comparator exports logic level 0, shows it is that no indicator light is inserted at this time, when comparator is defeated
Logic level 1 out shows there is indicator light insertion at this time.
As an implementation, multiple comparators can also be integrated in a chip, to reduce wiring board 110
Space hold, for example, 4 comparators are integrated in a chip, so that the chip can connect 4 street lamp detection circuits simultaneously
180。
As an alternative embodiment, for the ease of being communicated with host computer, control system 100 further include: be set to
One end of RS485 communicating circuit on wiring board 110, RS485 communicating circuit is connect with control circuit 120, the other end with it is upper
Machine connection, RS485 communicating circuit for realizing control system 100 and host computer communication.It should be noted that this kind of embodiment party
Under formula, control system 100 can not include: electromagnet detection circuit 150, indicator light interface 160, drive circuit of indicator 170,
At least one component in lamp inspection slowdown monitoring circuit 180.
As an alternative embodiment, the control system 100 is also wrapped for the ease of assembling or extending vending machine 10
Include: the rotary dip switch connecting with control circuit 120 being set on wiring board 110 passes through setting rotary dip switch
Numerical value carrys out the level number that setting control system 100 is located at vending machine 10.For example, for the control system 100 of first layer, by this
The numerical value of rotary dip switch on sandwich circuit board 110 is set as 1, for the control system 100 of the second layer, by the layer line
The numerical value of rotary dip switch on road plate 110 is set as 2 ... remaining the case where and so on, setting control system is come with this
100 are located at the level number of vending machine 10.In this way compared to allowing every layer of control system 100 just the same, is assembling or extending
When the layer structure of vending machine 10, without the sequence for considering the corresponding control system 100 of each layer.Of course, it should be understood that
The level number of vending machine 10 can be located at come setting control system 100 by way of program setting, but this mode makes group
When dress or extension vending machine 10, for example the sequence of the corresponding control system 100 of each layer is considered, because control system 100 exists
When setting, the position where it has been exactly defined, has such as been located at the first layer of vending machine 10, other cannot be attached it to
Layer.It should be noted that control system 100 can not include: electromagnet detection circuit 150, indicator light under this kind of embodiment
Interface 160, drive circuit of indicator 170, lamp inspection slowdown monitoring circuit 180, at least one component in RS485 communicating circuit.
As another embodiment, which includes: wiring board 110, the M being set on wiring board 110
Electromagnet interface 140, control circuit 120 and M the one-to-one M solenoid driver circuit 130 of electromagnet interface 140, M
A indicator light interface 160.Wherein, drive circuit of indicator 170 is turned using string and shift register is by M indicator light interface 160
It is connected by chain structure, specific connection type circuit diagram shown in Figure 7.Under this kind of embodiment, solenoid actuated
Circuit 130 can also be the solenoid driver circuit 130 for using and being often used at present other than it can use structure shown in Fig. 3,
For example, the control terminal (namely coil) of relay, relay is connect with control circuit 120, the common end of relay and electricity
Source connection, the normally opened contact of relay is connect with electromagnet interface 140, when the normally opened contact of relay is connected to common end,
Electromagnet interface 140 is powered, and when the normally opened contact of relay and common end disconnection, electromagnet interface 140 is powered off.Control circuit
120 make the normally opened contact of relay be connected to or disconnect with common end by transmission level signal, to control corresponding electromagnet
The energization or power-off of interface 140, to control opening or closing for corresponding channel of selling goods.In addition, it should be noted that, at this
Under kind embodiment, which can also include: M lamp inspection slowdown monitoring circuit 180 being set on wiring board 110, M
At least one of electromagnet detection circuit 150, RS485 communicating circuit, rotary dip switch component, wherein each member device
By the agency of has been crossed in front for the realization principle of part and the technical effect of generation, to briefly describe, place is not referred to, before can refer to
State corresponding contents in embodiment.
It should be noted that control system 100 provided by the embodiments of the present application has numerous embodiments, different layer knots
The control system 100 that structure is correspondingly arranged may be the same or different.
In addition, the vending machine 10 also needs to include the elements such as power supply, memory, this partial content may refer to existing electricity
Road design, due to being not belonging to present invention point, therefore does not make excessive explanation.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of control system, which is characterized in that be applied to vending machine, the control system is located at the vending machine for controlling
The M respective opening and closing in channel of selling goods of same layer；
The control system includes: wiring board；
M electromagnet interface being set on the wiring board, each electromagnet interface are used to installation electromagnet, work as institute
Set-up of control system is stated when the vending machine, the electromagnet being set on the M electromagnet interface is located at correspondingly
The exit in the M channels of selling goods；
The control circuit being set on the wiring board；
With the one-to-one M solenoid driver circuit of the M electromagnet interface, the M solenoid driver circuit setting
It on the wiring board, and is connect with the control circuit, each solenoid driver circuit includes: first switch
Pipe, second switch, first resistor, second resistance；The first end of the first switch tube is connect with the control circuit, described
The second end of first switch tube is connect with the first end of the first switch tube, and the second end of the first switch tube is also grounded,
The third end of the first switch tube is connect with one end of the first resistor, the other end of the first resistor and described second
One end of resistance connects, and the other end of the first resistor is also connect with the first end of the second switch, second electricity
The other end of resistance is connect with the third end of the second switch, and the third end of the second switch is also used to connect with a power supply
It connects, the second end of the second switch is connected with corresponding electromagnet interface；
The control circuit is used to control leading for corresponding first switch tube to the solenoid driver circuit transmission level signal
Logical or shutdown, and then control the on or off of the second switch, so control corresponding electromagnet interface energization or
Power-off, to control opening or closing for corresponding channel of selling goods, wherein M is the integer more than or equal to 1.
2. control system according to claim 1, which is characterized in that each solenoid driver circuit is equal further include:
Diode is discharged, the cathode for discharging diode connect with the second end of the second switch, the diode that discharges
Plus earth.
3. control system according to claim 1, which is characterized in that the control system further include: be set to the line
On the plate of road with the one-to-one M electromagnet detection circuit of the M electromagnet interface, each electromagnet detection electricity
Road is used to detect whether corresponding electromagnet interface is equipped with electromagnet, and each electromagnet detection circuit includes: to adopt
Sample circuit, operational amplifier circuit, one end of the sample circuit are connected with one end of corresponding electromagnet interface, the sample circuit
The other end is connect with the first input end of the operational amplifier circuit, the second input terminal and the electromagnet interface of the operational amplifier circuit
One end connection, the output end of the operational amplifier circuit are connect with the control circuit.
4. control system according to claim 3, which is characterized in that each electromagnet detection circuit is equal further include:
The output end of filter circuit, the operational amplifier circuit is connect through the filter circuit with the control circuit.
5. control system according to claim 1, which is characterized in that the control system further include: be set to the line
M indicator light interface on the plate of road, each indicator light interface be used to installation indicator light, when the set-up of control system in
When the vending machine, a channel one-to-one correspondence of selling goods of the indicator light and the M being set on the M indicator light interface；
And the drive circuit of indicator connecting with the control circuit, the drive circuit of indicator are set to the wiring board
On, the drive circuit of indicator is turned using string and shift register connects the M indicator light interface by chain structure.
6. control system according to claim 5, which is characterized in that the control system further include: be set to the line
M lamp inspection slowdown monitoring circuit on the plate of road, the corresponding indicator light interface of a lamp inspection slowdown monitoring circuit, each lamp inspection are surveyed
Circuit is used to detect whether corresponding indicator light interface is equipped with indicator light, and each lamp inspection slowdown monitoring circuit includes: comparator,
The first input end of the comparator is connected with corresponding indicator light interface, the second input terminal and reference voltage of the comparator
Connection, the output end of the comparator are connect with the control circuit.
7. control system according to claim 1, which is characterized in that the vending machine further includes host computer, the control
System further include: the RS485 communicating circuit being set on the wiring board, the RS485 communicating circuit and the control circuit
Connection, the RS485 communicating circuit for realizing the control system and the host computer communication.
8. control system described in any one of -7 according to claim 1, which is characterized in that the control system further include: set
The rotary dip switch being connect with the control circuit being placed on the wiring board, by the way that the rotary dip switch is arranged
Numerical value sets the level number that the control system is located at the vending machine.
9. a kind of control system, which is characterized in that be applied to vending machine, the control system is located at the vending machine for controlling
The M respective opening and closing in channel of selling goods of same layer；
The control system includes: wiring board；
M electromagnet interface, the M electromagnet interface are set on the wiring board, and each electromagnet interface is used
In installation electromagnet, when the set-up of control system is when the vending machine, the electromagnetism being set on the M electromagnet interface
Iron is located at the exit in the M channels of selling goods correspondingly；
Control circuit, the control circuit are set on the wiring board；
With the one-to-one M solenoid driver circuit of the M electromagnet interface, the M solenoid driver circuit setting
It on the wiring board, and is connect with the control circuit, each solenoid driver circuit is used for according to control circuit
The level signal of transmission controls the energization or power-off of corresponding electromagnet interface, so control corresponding channel of selling goods opening or
It closes；
M indicator light interface, the M indicator light interface are set on the wiring board, and each indicator light interface is used
In installation indicator light, when the set-up of control system is when the vending machine, the instruction being set on the M indicator light interface
Lamp and the M channel one-to-one correspondence of selling goods；
And the drive circuit of indicator connecting with the control circuit, the drive circuit of indicator are set to the wiring board
On, the drive circuit of indicator is turned using string and shift register connects the M indicator light interface by chain structure,
Wherein, M is the integer more than or equal to 1.
10. a kind of vending machine characterized by comprising
K layers of structure, every layer of corresponding installation one such as above-mentioned control system of any of claims 1-8, or as above
Control system as claimed in claim 9 is stated, and every layer includes M channels of selling goods, wherein K, M are the integer more than or equal to 1；
And host computer, the host computer are connect with every layer of control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766689.1A CN110335413A (en) | 2019-08-21 | 2019-08-21 | A kind of control system and vending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766689.1A CN110335413A (en) | 2019-08-21 | 2019-08-21 | A kind of control system and vending machine |
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| CN210038940U (en) * | 2019-08-21 | 2020-02-07 | 北京快方科技有限公司 | Control system and vending machine |
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| US4372464A (en) * | 1980-06-16 | 1983-02-08 | Pepsico Inc. | Vending machine control circuit |
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