CN109062089A - A kind of automatic vending machine multi-channel control circuit system - Google Patents
A kind of automatic vending machine multi-channel control circuit system Download PDFInfo
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- CN109062089A CN109062089A CN201810760780.8A CN201810760780A CN109062089A CN 109062089 A CN109062089 A CN 109062089A CN 201810760780 A CN201810760780 A CN 201810760780A CN 109062089 A CN109062089 A CN 109062089A
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- circuit
- control circuit
- vending machine
- control
- automatic vending
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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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
The invention discloses a kind of automatic vending machine multi-channel control circuit systems, and in particular to automatic vending machine technical field.Which solve existing automatic vending machine equipment room can only independent operation, the deficiency that businessman can not remotely be managed collectively.The automatic vending machine multi-channel control circuit system, including control circuit, net background and touch screen, control circuit includes governor circuit, power circuit, control signal output circuit, feedback signal input circuit, network port circuit, telecommunication circuit and storage circuit, and the control circuit realizes production, the self-test of equipment and the calculating of clout of drink by the control of the executing agency to automatic vending machine and the reception of sensor feedback signal；Realize that data mutually pass by telecommunication circuit between the control circuit and touch screen；The point list information that governor circuit is sent according to touch screen is made, and production state is returned to touch screen in the production process；Control signal output circuit includes photoelectric isolating circuit and Voltag driving circuit.
Description
Technical field
The present invention relates to automatic vending machine technical fields, and in particular to a kind of automatic vending machine multi-channel control circuit system.
Background technique
With the development of people's living standard, automatic vending equipment plays the part of more and more important angle in people's lives
Color, now rushing Drink dispenser is a kind of automatic vending machine that semi-finished product production beverage is processed by scene, to meet drink
Manufacture craft, this automatic vending machine have more complicated peripheral hardware, it is therefore desirable to the powerful circuit control system of control function
System.Currently, some domestic producers select that PLC is used to control executing agency as master element, although this method is held
Easily realize manufacture craft timing, but hardware cost is higher, and is not easy to communicate with non-industry control host computer or net background, it can not
The means of payment on Support Line.
Existing automatic vending machine multi-channel control circuit system uses single-chip microcontroller, optocoupler, field-effect tube, signal extension module
Etc. devising the control circuit that can control multiple motors.The circuit only passes through a single-chip microcontroller can be to a motors up to a hundred
Centralized control is carried out, cooperation feedback control circuit provides a kind of multi-channel control scheme of simple automatic vending machine of structure.Extensively
Chuan Ying Electronic Products Inc. of state city devise it is a kind of with the automatic vending machine for selling goods and making beverage function, it is this to peddle
Machine has the function of vending machine and drinking production, including frame, automatic vending module, automatic production warm drink vending machine mould simultaneously
Block, touch screen buy terminal, control system, power-supply system.Compared with original automatic vending machine and production vending machine for beverage,
It is provided with smaller volume, has saved operating cost for businessman.
Although the control to a large amount of motors may be implemented in multi-channel control circuit system, but can only cooperate structure with feedback signal
At a kind of automatic vending machine control mode that structure is relatively simple, be only able to satisfy equipment it is basic sell demand for control.The control
Circuit does not have the hardware condition for supporting the means of payment on the lines such as Alipay, wechat wallet, while also not having support backstage and transporting
Seek the condition of maintenance.Some has the automatic vending machine for selling goods and making beverage function, and there is touch screen to buy terminal, Ke Yilian
Net realizes the means of payment on line, but equipment room can only independent operation, businessman can not remotely be managed collectively.
Summary of the invention
The purpose of the present invention is in view of the above deficiencies, propose a kind of realize from the unified management of net background server
Function greatly reduces the operation cost of businessman, and provides authentic data automatic vending machine multichannel for the overall management of businessman
Control circuit system.
The present invention specifically adopts the following technical scheme that
A kind of automatic vending machine multi-channel control circuit system, including control circuit, net background and touch screen, the control
Circuit includes governor circuit, power circuit, control signal output circuit, feedback signal input circuit, network port circuit, telecommunication circuit
And storage circuit, the control circuit pass through the control of the executing agency to automatic vending machine and the reception of sensor feedback signal
Realize production, the self-test of equipment and the calculating of clout of drink；
Realize that data mutually pass by telecommunication circuit between the control circuit and touch screen；
The point list information that governor circuit is sent according to touch screen is made, and in the production process will production state passback
To touch screen；
The control signal output circuit includes photoelectric isolating circuit and Voltag driving circuit, specifically includes signal designation
LED, optocoupler, relay and freewheeling diode, signal designation LED are series at the front end of optocoupler, and control signal draws from governor circuit
It is exported on foot, and is sent to executing agency by control signal output circuit；
The feedback signal input circuit includes RC filter circuit and photoelectric isolating circuit；
The power circuit includes that the DC24V of isolation turns DC5V circuit and DC5V turns DC3.3V circuit.
Preferably, the control circuit further includes network port circuit, telecommunication circuit, storage circuit and key circuit.
Preferably, when the governor circuit self-test measures failure, fault message is sent to touch screen in real time, touch screen connects
Corresponding interface can be shown on the screen after receiving fault message.
Preferably, the control circuit is communicated with net background by network port circuit access network based on ethernet, and according to network after
The parameter change manufacture craft that platform is sent；Control circuit passes through the calculated result of material surplus and the testing result of equipment fault
Network interface is uploaded to net background, while the production situation of the touch screen single information of point and control circuit that are sent to control circuit also can
It is sent to net background in real time.
The invention has the following beneficial effects:
The automatic vending machine multi-channel control circuit system realizes field fabrication of the executing agency to drink, and realizes long-range
Change production formula, technological parameter, make equipment under conditions of not changing hardware, by long-range back-stage management, can increase
The type of drink；
The function being managed collectively from net background server is realized, the operation cost of businessman is greatly reduced, and is quotient
The overall management of family provides authentic data；
Using Android system touch screen, means of payment on line are realized；
Emergency store function is realized, guarantees that equipment can be after in case of a network fault using EEPROM storage chip
It is continuous to operate normally；
The function buttons such as reset, cleaning, exhaust improve the convenience of maintenance, further reduced operation cost.
Detailed description of the invention
Fig. 1 is automatic vending machine multi-channel control circuit system structure block diagram；
Fig. 2 is control signal output circuit；
Fig. 3 is feedback signal input circuit；
Fig. 4 is power supply architecture figure；
Fig. 5 is that DC24V turns DC5V power circuit diagram；
Fig. 6 is that DC5V turns DC3.3V power circuit diagram；
Fig. 7 is network port circuit schematic diagram；
Fig. 8 is telecommunication circuit schematic diagram；
Fig. 9 is storage circuit schematic diagram.
Specific embodiment
A specific embodiment of the invention is described further in the following with reference to the drawings and specific embodiments:
As shown in Figure 1, a kind of automatic vending machine multi-channel control circuit system, including control circuit, net background and touch
Screen, the control circuit include governor circuit, power circuit, control signal output circuit, feedback signal input circuit, network interface electricity
Road, telecommunication circuit and storage circuit, the control circuit are anti-by the control of the executing agency to automatic vending machine and sensor
Production, the self-test of equipment and the calculating of clout of drink are realized in the reception of feedback signal；
Realize that data mutually pass by telecommunication circuit between the control circuit and touch screen；
The point list information that governor circuit is sent according to touch screen is made, and in the production process will production state passback
To touch screen；
As shown in Fig. 2, the control signal output circuit includes photoelectric isolating circuit and Voltag driving circuit, specifically include
Signal designation LED, optocoupler, relay and freewheeling diode, signal designation LED are series at the front end of optocoupler, control signal from master
It is exported on control circuit pin, and is sent to executing agency by control signal output circuit, optocoupler plays level conversion and Phototube Coupling
Effect, relay play a part of secondary isolation and voltage driving；To judge whether control signal is normal in debugging,
Optocoupler front end string has gone up a LED, illustrates that governor circuit exports road control signal when LED is lighted.The input of optocoupler terminates
Enter the LED that master control circuit control pin and optocoupler driving voltage flow through, here by the way of sink current, by 3.3V power supply and
LED forms pull-up circuit.In figure by taking TLP281-4 optocoupler as an example, select 3.3V power supply as optocoupler driving voltage.Optocoupler output
Relay termination driving power exports 24V voltage signal in figure by taking PA1a-24V relay as an example when optocoupler is connected.Relay
The actuating mechanism controls voltage signal such as contact closure output U1, U2, U3, U4 when conducting, the work of driving executing agency.Executing agency
Including but not limited to AC220V synchronous motor, DC48V stepper motor and its driver, DC24V solenoid valve, DC24V raw material pump,
DC24V buzzer and other associated mechanisms etc..By taking PA1a-24V relay as an example, output circuit can driving control signal maximum
The executing agency of 5A/DC30V or 5A/AC250V.Since coil is when passing through electric current, induced electromotive force can be generated at its both ends,
The moment that relay contact disconnects, current vanishes, induced electromotive force can generate backward voltage.It can be damaged when backward voltage is excessive
Bad optocoupler even power supply.Therefore it in order to protect circuit, needs in the both ends of a relay coil freewheeling diode in parallel
IN4007。
As shown in figure 3, feedback signal input circuit includes RC filter circuit and photoelectric isolating circuit；The circuit is to automatically controlled system
System input includes but is not limited to the feedback signal close to sensors such as switch, optoelectronic switch, grating, liquid-level switch, microswitches.
Due to making limitation of the Drink dispenser of product vulnerable to mechanical structure and space, equipment inner sensor
It is easily mixed around together with the alternating current-direct current signal many places of motor, it is necessary to consider the problems of in sensor signal lines vulnerable to crosstalk.Cause
This 24V sensor for having selected output signal level relatively high, and RC low-pass filter is designed in control circuit input terminal, have
Effect reduces motor start and stop and extraneous bring interference.The resistance sizes of low-pass filter circuit select 4.7K, filter circuit output electricity
Stream is 5mA, and size of current is enough to drive optocoupler and meets operating voltage requirement.Capacitance size selects 1 μ F, cutoff frequency fc=1/
2 π RC=33.87Hz, can filter the Hz noise of 50Hz.
Photoelectric isolating circuit uses TLP281-4 opto-coupler chip, and the chip volume is small, can effectively save the sky of control panel
Between.Maximum input diode electric current is 50mA, and maximum forward diode voltage is 1.3V, maximum collector current 50mA.It is defeated
Enter signal and access optocoupler after filter circuit, optocoupler plays the role of Phototube Coupling and level conversion herein.Photoelectricity every
From ensure that the clutter not filtered on input signal cable will not be by the pin metering-in control system of single-chip microcontroller, to ensure that whole
The work of a electric-control system.Level conversion effect is to be converted to the 24V electric signal of input to can receive on single-chip microcontroller pin
Signal.Optocoupler output selects 3.3V power supply and 10K resistance to form pull-up circuit by the way of sink current.
The hardware circuit of this circuit control system needs multiple power sources power supply, and single-chip microcontroller and other control circuits need
The power supply of the actuators such as DC3.3V power supply power supply, sensor and solenoid valve and the voltage of relay control coil are required to
DC24V, power supply architecture block diagram is as shown in figure 4, turn DC5V electricity to meet the DC24V that power circuit described in the demand includes isolation
Road and DC5V turn DC3.3V circuit, as shown in Figure 5 and Figure 6.
The control circuit further includes network port circuit, telecommunication circuit, storage circuit and key circuit.As shown in fig. 7, network interface
Circuit realizes the communication connection of control circuit and network server using W5500 Ethernet chip as core element.W5500
It has been internally integrated devices at full hardware ICP/IP protocol stack+MAC+PHY.Devices at full hardware agreement stack technology is realized multiple using hardware logic gate circuit
Miscellaneous ICP/IP protocol cluster does not need single-chip microcontroller and reruns Software Protocol Stack, and application has simple and quick, high reliablity, peace
The significant advantages such as good perfection, so that the hardware design of single-chip microcontroller access network based on ethernet scheme is more simple and direct and efficient.Network interface chip with
Single-chip microcontroller connection is to be able to maintain the traffic rate of 80MHz by spi bus, so as to preferably realize network communication.
Telecommunication circuit as shown in Figure 8 realizes the communication between control circuit and touch screen, according to communication protocol, touch screen
The point list information of customer is sent to control circuit, control circuit is believed to touch screen feedback drink production state and equipment fault etc.
Breath.Since communication distance is shorter, therefore RS232 serial communication mode is selected.Telecommunication circuit uses MAX3232CSE chip.
As shown in figure 9, external memory circuit has primarily served the effect of emergency storage in the design, there is event in network
The fault message of material information and equipment can be kept in when barrier, be uploaded again when next network is successfully connected.Storage chip choosing
AT24C02 chip is selected.The storage circuit has the EEPROM of 2Kbit size, is based on I2C bus communication, it is mutual with single-chip microcontroller
Transmitter, receiver can all be done.Storage circuit as shown in figure 9, because AT24C02 bus inside be open-drain form, if
Pull-up resistor is not connected then can not determine level state when bus free.So serial clock SCL and chip serial data,
The pull-up resistor of a 4.7K has been connect between location input and output SDA and 3.3V respectively.
Function button refers to that reset key, cleaning key and exhaust key, businessman will use this in the maintenance of equipment
Three keys.When reset key is pressed, circuit control executing agency resets；When cleaning is by key pressing, circuit controling electromagnetic valve and
Pump etc. executes structure and clear water is poured mother tube；When exhaust is by key pressing, circuit controling electromagnetic valve and each raw material pump etc. execute machine
Structure makes to inject corresponding raw material in mother tube, goes out excessive gas and clear water.
Net background is exactly the server host on internet, and net background is connect with control circuit by Ethernet.Quotient
Family can check equipment operation condition and analyze sales data in logging in online backstage whenever and wherever possible, or even long-range change drink
Product production formula.The material balance information of every equipment can all be uploaded to network after the completion of Order creation, while equipment is in event
Equipment operation condition can also be uploaded after barrier self-test.When changing formula, it is only necessary to change raw material in the respective interface of backstage and add
Formulation parameter is sent to control circuit by Ethernet after adding parameter, formula to update, and control circuit will be held according to new parameter
Row production.
Touch screen is the man-machine interactive platform of control system, is the primary operational interface of customer.Customer completes on the screen
The movements such as the single, payment of point simultaneously obtain the single information of point, production information from screen.It is answered using support Alipay, two kinds of wechat wallet
Android system touch screen makes system realize barcode scanning payment.Since RS232 interface is suitable for most of touch screens, touching
It touches and is connected between screen and control circuit using RS232 serial communication mode.Customized data transfer communications association is designed on software
View, for carrying out the transmitting of system human-machine interactive information.
When governor circuit self-test measures failure, fault message is sent to touch screen in real time, touch screen receives failure letter
Corresponding interface can be shown after breath on the screen.
Control circuit is communicated by network port circuit access network based on ethernet with net background, and the parameter sent according to net background
Change manufacture craft；Control circuit is uploaded to net by network interface to the calculated result of material surplus and the testing result of equipment fault
Network backstage, while the production situation of the touch screen single information of point and control circuit that are sent to control circuit can also be sent to net in real time
Network backstage.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the essential scope of the present invention also should belong to of the invention
Protection scope.
Claims (4)
1. a kind of automatic vending machine multi-channel control circuit system, including control circuit, net background and touch screen, feature exist
In the control circuit includes governor circuit, power circuit, control signal output circuit, feedback signal input circuit, network interface electricity
Road, telecommunication circuit and storage circuit, the control circuit are anti-by the control of the executing agency to automatic vending machine and sensor
Production, the self-test of equipment and the calculating of clout of drink are realized in the reception of feedback signal；
Realize that data mutually pass by telecommunication circuit between the control circuit and touch screen；
The point list information that governor circuit is sent according to touch screen is made, and production state is returned to touching in the production process
Touch screen；
The control signal output circuit includes photoelectric isolating circuit and Voltag driving circuit, specifically includes signal designation LED, light
Coupling, relay and freewheeling diode, signal designation LED are series at the front end of optocoupler, and control signal is defeated from governor circuit pin
Out, and by control signal output circuit it is sent to executing agency；
The feedback signal input circuit includes RC filter circuit and photoelectric isolating circuit；
The power circuit includes that the DC24V of isolation turns DC5V circuit and DC5V turns DC3.3V circuit.
2. a kind of automatic vending machine multi-channel control circuit system as described in claim 1, which is characterized in that the control circuit
It further include network port circuit, telecommunication circuit, storage circuit and key circuit.
3. a kind of automatic vending machine multi-channel control circuit system as described in claim 1, which is characterized in that the governor circuit
When self-test measures failure, fault message is sent to touch screen in real time, touch screen can be shown on the screen after receiving fault message
Show corresponding interface.
4. a kind of automatic vending machine multi-channel control circuit system as described in claim 1, which is characterized in that the control circuit
The parameter change manufacture craft for being communicated by network port circuit access network based on ethernet with net background, and being sent according to net background；Control
Circuit processed is uploaded to net background by network interface to the calculated result of material surplus and the testing result of equipment fault, touches simultaneously
The production situation of the single information of point and control circuit that screen is sent to control circuit can also be sent to net background in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810760780.8A CN109062089A (en) | 2018-07-12 | 2018-07-12 | A kind of automatic vending machine multi-channel control circuit system |
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| CN201810760780.8A CN109062089A (en) | 2018-07-12 | 2018-07-12 | A kind of automatic vending machine multi-channel control circuit system |
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Family
ID=64816046
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| CN201810760780.8A Pending CN109062089A (en) | 2018-07-12 | 2018-07-12 | A kind of automatic vending machine multi-channel control circuit system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109859905A (en) * | 2019-03-24 | 2019-06-07 | 杭州三普机械有限公司 | A kind of high-speed knitter intelligent controller |
| CN110798530A (en) * | 2019-11-07 | 2020-02-14 | 四川长虹电器股份有限公司 | Improved method based on self-service vending system data uploading |
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Application publication date: 20181221 |
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