CN208654913U

CN208654913U - A kind of master control borad circuit of automatic vending machine

Info

Publication number: CN208654913U
Application number: CN201821327770.7U
Authority: CN
Inventors: 徐力
Original assignee: Zhejiang Yijia Electronic Polytron Technologies Inc
Current assignee: Zhejiang Yijia Electronic Polytron Technologies Inc
Priority date: 2018-08-16
Filing date: 2018-08-16
Publication date: 2019-03-26
Anticipated expiration: 2028-08-16

Abstract

The utility model discloses a kind of master control borad circuits of automatic vending machine, including storage circuit, governor circuit and telecommunication circuit, storage circuit is electrically connected with governor circuit, telecommunication circuit and governor circuit communicate to connect, telecommunication circuit is also communicated to connect with external server, to send the product category of user's purchase to external server, storage circuit includes a SD card slot, SD card slot has four data pins, and it is coupled with governor circuit, resistance R34 has been respectively coupled in four data pins, resistance R35, resistance R37 and resistance R38 are followed by power supply, SD card slot also has a clock pins, clock pins are coupled to governor circuit after being coupled with resistance R47, clock pins are grounded after being also coupled to capacitor C51, the utility model can be convenient businessman to the commodity in automatic vending machine according to it is each when Between and the preference of user in place be configured, and then increase sales volume and profit.

Description

A kind of master control borad circuit of automatic vending machine

Technical field

The utility model relates to automatic vending machine, the master control borad circuit of specially a kind of automatic vending machine.

Background technique

Automatic vending machine is the commonly used equipment of business automation, it is not limited by time, place, can save manpower, side Just it trades.It is a kind of completely new retailing form, the micro supermarket for the 24 HOUR ACCESS that is otherwise known as.Existing automatic vending machine Master control borad circuit only the commodity in automatic vending machine are sold, do not carry out good statistics, such company is just Commodity cannot be set according to the preference of the user in each place, bigger profit cannot be obtained.

Utility model content

In view of the deficienciess of the prior art, facilitating businessman to automatic vending the purpose of this utility model is to provide a kind of The automatic vending machine master control borad circuit that commodity in machine are configured according to the preference of each time and the user in place.

To achieve the above object, the utility model provides following technical solution: a kind of master control borad electricity of automatic vending machine Road, including storage circuit, governor circuit and telecommunication circuit, the storage circuit are electrically connected with governor circuit, the telecommunication circuit It is communicated to connect with governor circuit, the telecommunication circuit is also communicated to connect with external server, to send the product kind of user's purchase For class to external server, the storage circuit includes a SD card slot, and the SD card slot has four data pins, and with Governor circuit couples, and has been respectively coupled to resistance R34, resistance R35, resistance R37 and resistance R38 in four data pins and has been followed by Power supply, the SD card slot are coupled to governor circuit after also there are a clock pins, the clock pins to be coupled with resistance R47, The clock pins are grounded after being also coupled to capacitor C51.

The telecommunication circuit includes a GPRS chip and watchdog chip, institute as a further improvement of the utility model, It states GPRS chip and external server communicates to connect, also communicated to connect with governor circuit, the watchdog chip has reset defeated Enter pin, reset output pin, enabled pin and control pin, the enabled pin is coupled with concatenated resistance R295 and two poles Pipe D46 is followed by power supply, and one section of the resistance R295 is coupled to enabled pin, and the other end is coupled to the cathode of diode D46, institute The anode for stating diode D46 is coupled to power supply, and the reset input pin is coupled with the cathode after resistance R294 with diode D46 Coupling, the reset input pin are grounded after being also coupled to capacitor C653, are further coupled to GPRS chip, the reset output pin It is coupled to GPRS chip, is resetted successfully or no signal gives GPRS chip with exporting, the control pin is coupled with resistance R291 After be coupled with a triode Q54, the other end of the resistance R291 relation control pin is coupled to the base stage of triode Q54, institute The emitter ground connection of triode Q54 is stated, the base stage of the triode Q54 is grounded after being coupled with resistance R292, the GPRS chip With power control pin, the collector of the triode Q54 is coupled to the power control pin of GPRS chip.

The governor circuit has been also coupled to concatenated resistance R77 and triode as a further improvement of the utility model, Q12 is followed by the power control pin of GPRS chip, and one section of the resistance R77 is coupled to governor circuit, and the other end is coupled to three The base stage of pole pipe Q12, the collector of the triode Q12 are coupled to the power control pin of GPRS chip, the triode Q12 Emitter ground connection.

The base stage of the triode Q12 is grounded after being coupled with resistance R80 as a further improvement of the utility model,.

The beneficial effects of the utility model can store the commodity kind that automatic vending machine each time sells in storage circuit Class can count the commodity of current month or current season fast sale according to this, and thus businessman can be according to statistics Information places the commodity of more fast sales in automatic vending machine, avoids running out of goods, while increasing sales volume, the storage mode being provided with Using the form of SD card, the memory space of SD card is compared for EPROM chip (such as AT24C64) used in circuit common, With bigger data space, has compared to TF card with faster speed, by the way that storage circuit is arranged, SD card is inserted into In SD card slot, the commodity after each user buys successfully and time are then sent to SD card slot by governor circuit, then lead to It crosses SD card slot and sends these data to SD card and carry out storage backup, number when can paralyse suddenly to avoid external server in this way According to loss, increase the stability that data save, while the resistance R34, resistance R35, resistance R37 and the resistance R38 that are arranged can make For pull-up resistor, so that signal transmission is more stable, when avoiding high level signal weaker, the data SD card of transmission can not identified Come, lead to data transmission fault, the resistance R47 of setting can carry out current limliting to the electric current entered in clock pins, avoid pair SD card damages, while the clock signal that the capacitor C51 being arranged can export governor circuit is filtered, so that clock is believed It is number more steady, filter out the level of some improper jumps.

Detailed description of the invention

Fig. 1 is the watchdog chip peripheral circuit circuit diagram of the utility model；

Fig. 2 is the telecommunication circuit circuit diagram of the utility model；

Fig. 3 is the storage circuit circuit diagram of the utility model；

Fig. 4 is the portion the A circuit enlarged drawing in Fig. 2 of the utility model.

Drawing reference numeral: 1, storage circuit；11, SD card slot；2, governor circuit；3, telecommunication circuit；31, GPRS chip；32, Watchdog chip.

Specific embodiment

The utility model is described in further detail below in conjunction with embodiment given by attached drawing.

Referring to Fig.1 shown in -4, a kind of master control borad circuit of automatic vending machine of the present embodiment, including storage circuit 1, master control Circuit 2 and telecommunication circuit 3, the storage circuit 1 are electrically connected with governor circuit 2, and the telecommunication circuit 3 is communicated with governor circuit 2 Connection, the telecommunication circuit 3 are also communicated to connect with external server, to send the product category of user's purchase to external service Device, the storage circuit 1 include a SD card slot 11, and the SD card slot 11 has four data pins, and electric with master control Road 2 couples, and has been respectively coupled to resistance R34, resistance R35, resistance R37 and resistance R38 in four data pins and has been followed by power supply, The SD card slot 11 also has a clock pins, and the clock pins are coupled to governor circuit 2, institute after being coupled with resistance R47 It states after clock pins have been also coupled to capacitor C51 and is grounded.

Through the above technical solutions, wherein governor circuit 2 is showed using what existing main control chip and its peripheral circuit were constituted There is circuit, after user has selected commodity, governor circuit 2 can control corresponding commodity and drop out, and governor circuit 2 can also pass through at this time Telecommunication circuit 3 sends the coding of the corresponding commodity to external server, and external server can carry out counting the automatic selling at this time That sells machine each period and type of merchandize sells information, can count the commodity of current month or current season fast sale, Thus businessman can place the commodity of more fast sales according to the information of statistics in automatic vending machine, avoid running out of goods, simultaneously Increase sales volume, the storage mode being provided with uses the form of SD card, and the memory space of SD card is compared to used in circuit common For EPROM chip (such as AT24C64), there is bigger data space, have compared to TF card with faster speed, lead to Cross setting storage circuit 1, SD card be inserted into SD card slot 11, then by governor circuit 2 send each user purchase at Commodity and time after function to SD card slot 11, then by SD card slot 11 send these data to SD card store it is standby Part, loss of data when can paralyse suddenly to avoid external server in this way increases the stability that data save, while the electricity being arranged Resistance R34, resistance R35, resistance R37 and resistance R38 can be used as pull-up resistor, so that signal transmission is more stable, avoid high electricity When ordinary mail number is weaker, the identification of the data SD card of transmission is not come out, and leads to data transmission fault, the resistance R47 of setting can into The electric current entered into clock pins carries out current limliting, and the capacitor C51 for avoiding damaging SD card, while being arranged can be to master control electricity The clock signal that road 2 exports is filtered, so that clock signal is more steady, filters out the level of some improper jumps.

As an improved specific embodiment, the telecommunication circuit 3 includes a GPRS chip 31 and watchdog chip 32, The GPRS chip 31 is communicated to connect with external server, is also communicated to connect with governor circuit 2, and the watchdog chip 32 has Input pin is resetted, output pin, enabled pin is resetted and controls pin, the enabled pin is coupled with concatenated resistance R295 It is followed by power supply with diode D46, one end of the resistance R295 is coupled to enabled pin, and the other end is coupled to diode D46's Cathode, the anode of the diode D46 are coupled to power supply, and the reset input pin is coupled with after resistance R294 and diode The cathode of D46 couples, and the reset input pin is grounded after being also coupled to capacitor C653, is further coupled to GPRS chip 31, described It resets output pin and is coupled to GPRS chip 31, resetted successfully or no signal is to GPRS chip 31 with exporting, the control is drawn Foot is coupled with a triode Q54 after being coupled with resistance R291, and the other end of the resistance R291 relation control pin is coupled to three The base stage of pole pipe Q54, the emitter ground connection of the triode Q54, the base stage of the triode Q54 are coupled with resistance R292 and are followed by Ground, the GPRS chip 31 have power control pin, and the collector of the triode Q54 is coupled to the power supply of GPRS chip 31 Control pin.

Through the above technical solutions, setting GPRS chip 31 (Air202 model chip can be used) and its in the prior art Peripheral circuit cooperation realize and carried out wireless communication external server and governor circuit 2 by SIM card, this communication mode phase For WIFI than generally using now is wirelessly communicated, the use of SIM card not will receive whether surrounding has WIFI channel and influence, And the WIFI signal of most of urbanization universal not yet in present city, present WIFI signal, which is also only limited to individual, to be made With, it in this way will be very big to the limitation of Vending Machine, and this problem would not occur using SIM card, enable pin It is directly connected in power supply by resistance R295 and diode D46, in this way when automatic vending machine powers on, sees that doorway chip will It is enabled, start to work, thus can independently be opened with GPRS chip 31, not need to enable by GPRS chip 31, make Must see that the effect on doorway is relatively reliable, wherein diode D46 ensure that power supply when to flowing, while resistance R295 by power supply into Row current limliting can preferably protect watchdog chip 32, facilitate GPRS chip 31 to watchdog chip wherein resetting input pin 32 are resetted, it is made to restart timing, and are resetted output pin and facilitated to export and reset successfully or no signal gives GPRS core Piece 31, tells whether GPRS chip 31 has successfully resetted, and in addition when watchdog chip 32 counts time-out, control pin will Output overtime signal, after resistance R291 current limliting, timeout signal enters the base stage of triode Q54, and then triode Q54 is led Logical, the power control pin level of GPRS chip 31 is pulled low at this time, and then is resetted to GPRS chip 31, wherein resistance The leakage current of the control pin of watchdog chip 32 can be carried out water conservancy diversion by R292, leakage current is oriented to ground, and then avoid three Pole pipe Q54 malfunction, so that the stability of circuit work is more preferable.

As an improved specific embodiment, the governor circuit 2 has been also coupled to concatenated resistance R77 and triode Q12 is followed by the power control pin of GPRS chip 31, and one end of the resistance R77 is coupled to governor circuit 2, and the other end is coupled to The base stage of triode Q12, the collector of the triode Q12 are coupled to the power control pin of GPRS chip 31, three pole The emitter of pipe Q12 is grounded.

Through the above technical solutions, one can in addition be arranged at this time if necessary to reset manually to GPRS chip 31 A button, then button is connect with governor circuit 2, and when a button is pressed, governor circuit 2 issues reset signal, is resetted at this time Signal enters in triode Q12 after resistance R77 current limliting, and then triode Q12 is connected, by the power supply control of GPRS chip 31 The level of pin processed drags down, and then resets to GPRS chip 31, in this way when the wireless communication exception of automatic vending machine, just Reset test can be carried out to it by way of hand-reset, and then failure is discharged step by step, facilitate detection.

As an improved specific embodiment, the base stage of the triode Q12 is grounded after being coupled with resistance R80.

Through the above technical solutions, the leakage current of control circuit can be carried out water conservancy diversion by the resistance R80 of setting, by leakage current It is oriented to ground, and then triode Q12 is avoided to malfunction, so that the stability of circuit work is more preferable.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims

1. a kind of master control borad circuit of automatic vending machine, which is characterized in that including storage circuit (1), governor circuit (2) and communication Circuit (3), the storage circuit (1) are electrically connected with governor circuit (2), the telecommunication circuit (3) and governor circuit (2) communication link It connects, the telecommunication circuit (3) also communicates to connect with external server, to send the product category of user's purchase to external service Device, the storage circuit (1) include a SD card slot (11), the SD card slot (11) have four data pins, and with Governor circuit (2) couples, and has been respectively coupled to resistance R34, resistance R35, resistance R37 and resistance R38 in four data pins It is followed by power supply, the SD card slot (11) also has a clock pins, and the clock pins are coupled to master after being coupled with resistance R47 It controls circuit (2), the clock pins are grounded after being also coupled to capacitor C51.

2. the master control borad circuit of automatic vending machine according to claim 1, which is characterized in that telecommunication circuit (3) packet Include a GPRS chip (31) and watchdog chip (32), the GPRS chip (31) and external server communicate to connect, also with master Control circuit (2) communication connection, the watchdog chip (32) have reset input pin, reset output pin, enabled pin and Pin is controlled, the enabled pin is coupled with concatenated resistance R295 and diode D46 is followed by power supply, and the one of the resistance R295 End is coupled to enabled pin, and the other end is coupled to the cathode of diode D46, and the anode of the diode D46 is coupled to power supply, institute It states to reset input pin and be coupled with after resistance R294 and be coupled with the cathode of diode D46, the reset input pin has been also coupled to It is grounded, is further coupled to GPRS chip (31) after capacitor C653, the reset output pin is coupled to GPRS chip (31), with output It resets successfully or no signal is given GPRS chip (31), the control pin is coupled with a triode after being coupled with resistance R291 The other end of Q54, the resistance R291 relation control pin are coupled to the base stage of triode Q54, the transmitting of the triode Q54 Pole ground connection, the base stage of the triode Q54 are grounded after being coupled with resistance R292, and there is the GPRS chip (31) power supply control to draw The collector of foot, the triode Q54 is coupled to the power control pin of GPRS chip (31).

3. the master control borad circuit of automatic vending machine according to claim 2, which is characterized in that the governor circuit (2) is also It is coupled with the power control pin that concatenated resistance R77 and triode Q12 is followed by GPRS chip (31), the one of the resistance R77 End is coupled to governor circuit (2), and the other end is coupled to the base stage of triode Q12, and the collector of the triode Q12 is coupled to The power control pin of GPRS chip (31), the emitter ground connection of the triode Q12.

4. the master control borad circuit of automatic vending machine according to claim 3, which is characterized in that the base of the triode Q12 Pole is grounded after being coupled with resistance R80.