WO2015165306A1

WO2015165306A1 - Intelligent storage tank

Info

Publication number: WO2015165306A1
Application number: PCT/CN2015/074389
Authority: WO
Inventors: 吕孝乐
Original assignee: 深圳市乐满天科技发展有限公司
Priority date: 2014-04-30
Filing date: 2015-03-17
Publication date: 2015-11-05
Also published as: CN204021505U

Abstract

An intelligent storage tank comprises a storage tank container housing (101) and a storage tank surface cover (102). The storage tank surface cover (102) is provided with a display unit (103) for displaying the quality guarantee period of an article in the tank, and the display unit (103) is embedded in the outer surface of the storage tank surface cover (102). The intelligent storage tank can record the quality guarantee period of an article in the tank by operating the display unit arranged on the storage tank surface cover after a user places the article in the storage tank, so that the user can know whether the article in the tank is in the quality guarantee period at any time.

Description

Intelligent storage tank

Technical field

The utility model belongs to the field of small consumer goods manufacturing, in particular to a smart storage tank.

Background technique

At present, the shelf life of most food, medicine or skin care products is printed on the outer packaging or instructions of the product. Once the consumer disassembles the outer packaging for consumption or use, it often causes the forgetting of the product shelf life due to the inability to save the outer packaging or the manual. This increases the risk of eating or using expired products, which can be life-threatening in severe cases.

technical problem

It is an object of embodiments of the present invention to provide an intelligent storage tank that addresses the current problem of safe storage of products that have no shelf life records.

Technical solution

The embodiment of the present invention is realized by an intelligent storage tank comprising a storage tank container outer casing and a storage tank surface cover, the storage tank surface cover having a display unit for displaying the shelf life of the articles in the tank, the display unit Embedded in the outer surface of the storage tank cover.

Further, the storage tank container outer casing material is silicon dioxide, the storage tank cover material is PVC, and the display unit is a manually adjustable mechanical digital label or an electronic circuit.

Further, the display unit comprises:

a display and a battery that provides a first supply voltage;

a voltage stabilizing circuit that steps down and stabilizes the first power voltage to output a second power voltage, an input end of the voltage stabilizing circuit is connected to the battery positive pole, and the battery negative pole is grounded;

a processing circuit, a power terminal of the processing circuit is connected to an output end of the voltage stabilizing circuit, and a plurality of display output ends of the processing circuit are respectively connected to a plurality of display control ends of the display screen;

a display driving circuit, wherein a power supply end of the display driving circuit is connected to an output end of the voltage stabilizing circuit, and a first output end to a third output end of the display driving circuit and a first display driving end of the processing circuit respectively Connecting to the third display driver end;

According to the circuit, the power supply end of the circuit is connected to the output end of the voltage stabilizing circuit, and the first output end to the fourth output end of the circuit are respectively connected to the first operating end of the processing circuit a fourth operation end is connected, and the control end of the circuit-making circuit is exposed on an outer surface of the storage tank cover;

a crystal oscillation circuit, wherein an input end and an output end of the crystal oscillation circuit are respectively connected to a clock input end and a clock output end of the processing circuit;

And a reset circuit, wherein a power terminal of the reset circuit is connected to an output end of the voltage stabilizing circuit, and an output end of the reset circuit is connected to a reset end of the processing circuit.

Further, the display unit further includes:

a voltage detecting circuit, wherein the first detecting end and the second detecting end of the voltage detecting circuit are respectively connected to the first voltage detecting end and the second voltage detecting end of the processing circuit;

a storage circuit, a power supply end of the storage circuit is connected to an output end of the voltage stabilization circuit, and a data end and a clock end of the storage circuit are respectively connected to a first read/write end and a second read/write end of the processing circuit .

Further, the processing circuit includes:

Capacitor C3, capacitor C4, capacitor C5, resistor R9 and single chip microcomputer;

The fifth pin and the sixth pin of the single chip are respectively a first read/write end and a second read/write end of the processing circuit, and the seventh pin and the eighth pin of the single chip respectively are the processing a first voltage detecting end and a second voltage detecting end of the circuit, wherein the eleventh to thirteenth pins of the single chip are respectively a first display driving end to a third display driving end of the processing circuit, and the single chip microcomputer The fourteenth to seventeenth pins are respectively the first to fourth operating ends of the processing circuit, and the eighteenth pin of the single chip is the power supply end of the processing circuit and the nineteenth pin The twentieth pin and the twenty-first pin of the single chip are the clock output end of the processing circuit and the clock input end, and the twenty-third pin of the single chip passes the resistor R9 and the first The second power supply voltage is connected, the twenty-fourth pin of the single chip is grounded, the twenty-fifth pin of the single chip is the reset end of the processing circuit, and the twenty-seventh pin of the single chip passes the capacitor C3 is connected to the twenty-eighth pin of the single chip, the single piece The twenty-ninth pin of the machine is connected to the second power voltage through the capacitor C5, and the thirty-th pin of the single chip is connected to the second power voltage, and the thirty-first pin of the single chip Connected to the second power voltage through the capacitor C4, the thirty-second to thirty-sixth pins and the thirty-eighth to sixtieth pins of the single chip are multiple display outputs of the processing circuit end;

The single chip microcomputer is an OTP8819 type microprocessor.

Further, the voltage stabilizing circuit includes:

Capacitor C1, capacitor C2 and voltage regulator chip;

The input end of the voltage stabilizing chip is connected to the input end of the voltage stabilizing circuit and the one end of the capacitor C1, and the ground end of the voltage stabilizing chip is grounded at the same time as the other end of the capacitor C1. The output terminal outputs the second power voltage for the output end of the voltage stabilizing circuit, and the output end of the voltage stabilizing chip is also grounded through the capacitor C2.

Further, the built-in circuit includes:

a first switch, a second switch, a third switch, and a fourth switch;

a conducting end of the first switch, the second switch, the third switch, and the fourth switch is simultaneously a power end of the circuit, the first switch, the second switch The third switch and the other conductive end of the fourth switch are respectively a first output end, a second output end, a third output end, and a fourth output end of the circuit according to the circuit, the first The control terminals of the switch, the second switch, the third switch, and the fourth switch are respectively user operating terminals of the circuit-making circuit.

Further, the crystal oscillation circuit includes:

Capacitor C7, capacitor C8 and crystal oscillator;

One end of the crystal oscillator is grounded through the capacitor C7 at the output end of the crystal oscillator circuit, and the other end of the crystal oscillator is grounded through the capacitor C8 at the input end of the crystal oscillator circuit.

Further, the reset circuit includes:

Resistor R10 and capacitor C6;

One end of the resistor R10 is a power terminal of the reset circuit, and the other end of the resistor R10 is an output end of the reset circuit grounded through the capacitor C6.

Further, the display screen is an LCD display, an LED display or a dot matrix screen.

Further, the display driving circuit includes:

Resistor R2, resistor R3, resistor R4, red LED, green LED and blue LED;

One end of the resistor R2, the resistor R3, and the resistor R4 are simultaneously the power terminal of the display driving circuit, and the other ends of the resistor R2, the resistor R3, and the resistor R4 are respectively illuminated with the red light. a diode, the green light emitting diode, and an anode of the blue light emitting diode, wherein the red light emitting diode, the green light emitting diode, and the cathode of the blue light emitting diode are respectively a first output end of the display driving circuit , a second output end, and a third output end.

Further, the voltage detection circuit includes:

Resistor R4, resistor R5, resistor R6 and switch tube;

The input end of the switch tube is connected to the second detection end of the voltage detecting circuit and the end of the resistor R4, and the other end of the resistor R4 is connected to the control end of the switch tube, and the control of the switch tube The terminal is also grounded through the resistor R5, and the output end of the switch tube is grounded through the resistor R6 for the first detecting end of the voltage detecting circuit.

Further, the storage circuit includes:

Resistor R7, resistor R8 and memory chip;

One end of the resistor R7 and the resistor R8 are simultaneously connected to the power end of the memory circuit and the power end of the memory chip, and the other end of the resistor R7 is the data end of the memory circuit and the memory chip. The other end of the resistor R8 is connected to the clock end of the memory chip, and the enable end, the ground end and the address end of the memory chip are grounded.

Beneficial effect

After the user puts the item into the storage tank, the user records the effective end date of the item in the tank by operating the display unit provided on the cover of the storage tank, so that the user can know at any time whether the item in the tank is within the shelf life. Addressing the current problem of safe storage of products that have no shelf life records reduces the risk of eating or using expired products.

DRAWINGS

1 is a structural view of an intelligent storage tank provided by an embodiment of the present invention;

2 is a structural diagram of a dial display unit of an intelligent storage tank according to an embodiment of the present invention;

3 is a structural diagram of a scale display unit of an intelligent storage tank according to an embodiment of the present invention;

4 is a structural diagram of a display unit in an electronic intelligent storage tank according to an embodiment of the present invention;

FIG. 5 is a schematic diagram showing the display of an electronic intelligent storage tank display screen according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of an example of a display unit in an electronic intelligent storage tank according to an embodiment of the present invention.

Embodiments of the invention

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the embodiment of the present invention, after the user puts the item into the storage tank, the effective end date of the item in the can is recorded by operating the display unit provided on the cover of the storage tank so that the user can know at any time whether the item in the can is within the shelf life.

The implementation of the present invention is described in detail below in conjunction with specific embodiments:

FIG. 1 shows the structure of an intelligent storage tank provided by an embodiment of the present invention. For the convenience of description, only parts related to the present invention are shown.

The shelf life storage tank provided by the embodiment of the present invention comprises a storage tank container casing 101 and a storage tank cover 102. The storage tank cover 102 has a display unit 103 for displaying the shelf life of the articles in the can. And embedded in the outer surface of the storage tank cover 102.

In the embodiment of the present invention, the warranty period displayed by the display unit 103 includes the effective end date of the article, the time of the current distance end date, and the battery power.

As an embodiment of the present invention, the storage tank container casing 101 may be made of a silica material, and the storage tank surface cover 102 may be made of a PVC material.

As an embodiment of the present invention, the display unit 103 can be implemented by manually adjustable mechanical digital tags, for example:

As shown in FIG. 2, the manually adjustable mechanical digital label can be realized by a dial and a pointer having a number of 12 months, and there is a scale corresponding to the number of days in the month between every two adjacent month numbers in the dial, such as February to There are 29 scales between March and 31 scales between March and April, by manually dialing the pointer to the scale of the month and date corresponding to the end of warranty date of the food or medicine that you want to identify.

The dial can be made of PVC or a light weight sheet metal material.

Of course, the dial with the month and date can also be replaced by a scale. Referring to Figure 3, the shape and material are not limited herein.

FIG. 4 shows the structure of a display unit in an electronic intelligent storage tank provided by an embodiment of the present invention. For the convenience of description, only parts related to the present invention are shown.

As an embodiment of the present invention, the display unit 103 can also be implemented by using an electronic circuit, and specifically includes:

a display screen 10 and a battery that provides a first supply voltage;

a voltage stabilizing circuit 11 for stepping down the first power supply voltage and outputting a second power supply voltage, the input end of the voltage stabilizing circuit 11 is connected to the positive electrode of the battery, and the negative electrode of the battery is grounded;

a processing circuit 16, the power supply end of the processing circuit 16 is connected to the output end of the voltage stabilizing circuit 11, and the plurality of display output ends of the processing circuit 16 are respectively connected to the plurality of display control ends of the display screen 10;

a display driving circuit 12, the power supply end of the display driving circuit 12 is connected to the output end of the voltage stabilizing circuit 11, and the first output end to the third output end of the display driving circuit 12 are respectively connected to the first display driving end of the processing circuit 16 Three display driver connection;

According to the circuit 19, the power supply terminal of the circuit 19 is connected to the output terminal of the voltage stabilization circuit 11, and the first output terminal to the fourth output terminal of the circuit 19 are respectively connected to the first to fourth terminals of the processing circuit 16 The operating end is connected, and the control end of the circuit 19 is exposed on the outer surface of the storage tank cover 102;

a crystal oscillation circuit 15, an input end and an output end of the crystal oscillation circuit 15 are respectively connected to a clock input end and a clock output end of the processing circuit 16;

The reset circuit 17 has a power supply terminal connected to the output terminal of the voltage stabilization circuit 11, and an output terminal of the reset circuit 17 connected to the reset terminal of the processing circuit 16.

In the embodiment of the present invention, after the user puts the food or medicine into the storage tank, the current date and the effective end of the product are input through the button of the outer surface of the storage can lid 102 (the control end of the circuit 19). The date, processing circuit 16 calculates the effective number of days from the current date of the product, and displays on the display 10 the effective end date of the product and the remaining effective days, see Figure 5, and displayed on display 10 every 24 hours. The effective days are automatically reduced by one day until the number is “0”, which means that the items or food stored in the tank have passed the shelf life, so that the shelf life of the product can be known at any time without the outer packaging or the description of the shelf life. To ensure safe use.

Wherein, the control end of the circuit 19 can be implemented by using a PVC button, and the circuit board and the device can be implemented by using PCBA.

In the embodiment of the present invention, the crystal oscillation circuit 15 provides a clock signal to the processing circuit 16, the reset circuit 17 provides a reset signal to the processing circuit 16, and the user circuit 11 transmits a user operation command to the processing circuit 16, and the voltage stabilization circuit 11 is The circuit module provides a stable second supply voltage.

As a preferred embodiment of the present invention, the display unit 103 may further include:

a voltage detecting circuit 13, the first detecting end and the second detecting end of the voltage detecting circuit 13 are respectively connected to the first voltage detecting end and the second voltage detecting end of the processing circuit 16;

The memory circuit 14 is connected to the output end of the voltage stabilizing circuit 11. The data end and the clock end of the memory circuit 14 are respectively connected to the first read/write terminal and the second read/write terminal of the processing circuit 16.

In the embodiment of the present invention, the voltage detecting circuit 13 can also be added to detect the change of the second power voltage, that is, the change of the battery power, and display the change of the battery power through the display screen 10, so that the user can know the storage tank at any time. The power is changed, and the battery is replaced at the same time to ensure normal use.

When the battery is exhausted and the display is turned off, the storage circuit 14 can record the power-off time, and when the power is turned on again, the last valid product end date can be displayed to the display screen 10 through the processing circuit 16.

In the embodiment of the present invention, after the user puts the item into the storage tank, the electronic circuit set in the storage tank cover enters the countdown calculation state after the start date and the effective end date are input through the operation buttons provided on the storage tank cover, and The display on the storage tank cover displays the effective end date, time, remaining effective days and battery power of the contents in the tank in real time, so that the user can know whether the contents of the can are within the warranty period and also use different colors. The LED illuminates to more intuitively identify whether the items in the can are within the validity period, solves the current problem of safe storage of products recorded without shelf life, and reduces the risk of eating or using expired products.

FIG. 6 shows an example circuit structure of a display unit in an electronic smart storage tank provided by an embodiment of the present invention. For convenience of description, only parts related to the present invention are shown.

As an embodiment of the present invention, the processing circuit 16 includes:

Capacitor C3, capacitor C4, capacitor C5, resistor R9 and microcontroller U1;

The 5 pins and 6 pins of the single chip U1 are respectively the first read/write terminal and the second read/write terminal of the processing circuit 16, and the 7 pins and 8 pins of the single chip U1 are respectively the first voltage detecting end of the processing circuit 16 and The second voltage detecting end, the 11-13 pins of the single chip U1 are respectively the first display driving end to the third display driving end of the processing circuit 16, and the 14-17 pins of the single chip U1 are respectively the first operating end of the processing circuit 16. To the fourth operation terminal, the 18-pin of the single chip U1 is connected to the 19-pin VST of the processing circuit 16, and the 20-pin OSOC of the single-chip U1 and the 21-pin OSCI are the clock output and the clock input of the processing circuit 16. The 23-pin OSCXI of the single-chip U1 is connected to the second power supply voltage VCC through the resistor R9, the 24-pin GND of the single-chip U1 is grounded, and the 25-pin RESET of the single-chip U1 is the processing circuit. The reset terminal of 16 is connected to the 28 pin of the single chip U1 through the capacitor C3 through the capacitor C3, and the 29 pin of the single chip U1 is connected to the second power supply voltage VCC through the capacitor C5, the single chip U1 The 30 pin is connected to the second power supply voltage VCC, and the 31 pin of the single chip U1 is connected to the second power supply voltage VCC through the capacitor C4, and the 32-36 pins COM1-COM5 and 38-60 pins SEG1-SEG23 of the single chip U1 are processed. A plurality of display outputs of circuit 16.

Among them, the 14-17 pin of the single chip U1 is the ordinary I/O port of the single chip microcomputer, and the 27-31 pin is the LCD drive port of the single chip microcomputer.

In addition, the VDD, VST, TEST, GND, OSCI, and PA0 terminals of the single chip U1 can be used as a programming interface.

As a preferred embodiment of the present invention, the single chip U1 can be a microprocessor of the OTP8819 model.

The voltage stabilizing circuit 11 includes:

Capacitor C1, capacitor C2 and voltage regulator chip U3;

The input terminal Vin of the voltage regulator chip U3 is connected to the input end of the voltage regulator circuit 11 and the one end of the capacitor C1. The ground terminal GND of the voltage regulator chip U3 and the other end of the capacitor C1 are grounded at the same time, and the output terminal Vout of the voltage regulator chip U3 is stable. The output terminal of the voltage circuit 11 outputs a second power voltage VCC, and the output terminal of the voltage regulator chip U3 is also grounded through the capacitor C2.

As a preferred embodiment of the present invention, the first power supply voltage VDD can be provided by three 1.5V batteries.

The regulator chip U3 can use the HT7130 regulator chip.

The circuit 19 includes:

a first switch K1, a second switch K2, a third switch K3 and a fourth switch K4;

A conductive terminal of the first switch K1, the second switch K2, the third switch K3, and the fourth switch K4 is simultaneously a power supply end of the circuit 19, and the first switch K1, the second switch K2, and the third switch K3, The other conductive ends of the four switches K4 are respectively a first output end, a second output end, a third output end, and a fourth output end of the circuit 19, and the first switch K1, the second switch K2, and the third switch K3 The control terminals of the fourth switch K4 are respectively user operating terminals of the circuit 19.

The first switch K1 to the fourth switch K4 are respectively used as a cancel key (reset key), a decrease key, an increase key, and an open key (confirmation key) for the user to operate.

As a preferred embodiment of the present invention, the first switch, the second switch, the third switch, and the fourth switch may be mechanical switches or touch button switches.

The crystal oscillation circuit 15 includes:

Capacitor C7, capacitor C8 and crystal oscillator Y1;

One end of the crystal oscillator Y1 is a first output end of the crystal oscillation circuit 15 and is grounded through a capacitor C7. The other end of the crystal oscillator Y1 is a second output end of the crystal oscillation circuit 15 grounded through a capacitor C8.

The reset circuit 17 includes:

Resistor R10 and capacitor C6;

One end of the resistor R10 is the power supply terminal of the reset circuit 17, and the other end of the resistor R10 is the output terminal of the reset circuit 17 grounded through the capacitor C6.

The display driving circuit 12 includes:

Resistor R2, resistor R3, resistor R4, red LED RLED, green LED GLED and blue LED BLED;

One end of the resistor R2, the resistor R3, and the resistor R4 are simultaneously the power terminal of the display driving circuit 12. The other ends of the resistor R2, the resistor R3, and the resistor R4 are respectively connected to the anode of the red LED RLED, the green LED, and the blue LED BLED. Connection, red LED RLED, green LED The cathodes of the GLED and the blue light emitting diode BLED are respectively a first output end, a second output end, and a third output end of the display driving circuit 12.

As an embodiment of the present invention, the display screen 10 can be an LCD display screen or a dot matrix screen or an LED display screen.

The voltage detecting circuit 13 includes:

Resistor R4, resistor R5, resistor R6 and switching transistor Q1;

The input end of the switch tube Q1 is connected to the second detection end of the voltage detecting circuit 13 and the end of the resistor R4, the other end of the resistor R4 is connected to the control end of the switch tube Q1, and the control end of the switch tube Q1 is also grounded through the resistor R5, the switch The output end of the tube Q1 is the first detecting end of the voltage detecting circuit 13 and is grounded via a resistor R6.

As a preferred embodiment of the present invention, the switch tube Q1 can be implemented by a PNP type triode or a MOS tube, the emitter of the PNP type triode is the input end of the switch tube, and the collector of the PNP type triode is the output end of the switch tube, PNP type. The base of the triode is the control end of the switching tube.

The storage circuit 4 includes:

Resistor R7, resistor R8 and memory chip U2;

One end of the resistor R7 and the resistor R8 are simultaneously connected to the power terminal of the memory circuit 4 and the power terminal of the memory chip U2, and the other end of the resistor R7 is connected to the data terminal of the memory circuit 4 and the data terminal SDA of the memory chip U2, and the other resistor R8 The clock terminal of the memory circuit 4 is connected to the clock terminal SCL of the memory chip U2, the enable terminal WP of the memory chip U2 is grounded, the ground terminal GND of the memory chip U2 is grounded, and the address terminals A0, A1, and A3 of the memory chip U2 are connected. Ground.

As a preferred embodiment of the present invention, the memory chip U2 can be a 24C02 type memory chip.

In the embodiment of the present invention, the display screen 10 is exposed on the surface of the storage tank cover 102, and other circuit portions and batteries are embedded inside the storage tank cover 102.

When three 1.5V batteries are placed in the battery compartment inside the storage tank cover 102, press and hold the "open key" for 2 seconds to enter the setting procedure. First, the input start date "Date appears on the display screen 10. Of The prompt of "Start", see Figure 5, from left to right, through the two digital tubes to display "day", through the two digital tube display "month", through the four digital tube display "year", when the "day" When a group of digital tubes starts to flash, use the “Add button” to select the correct number from 0-31 in turn, then confirm it as “Save” and save it to the next set of digital tube inputs. After the input is completed, the input time and minute prompts appear. The two digital tubes before “:” represent the hour, and the two digital tubes after the “:” represent the minute. First, select “AM” by “Add Key” or “Reduce Key”. " or "PM", then save the current time by "add key" and "confirmation key". After the input is completed, the display 10 prompts for a valid end date prompt "Date" Of Expiry" At this time, enter "day-month-year" and "hour: minute" in sequence, (the hour and minute system of the effective end date can be the same as the hour and minute entered when starting date), and long press after all input is completed. The “confirmation key” saves all input data in 2 seconds, and the microcontroller U1 automatically calculates the remaining valid days and displays it on the display 10” COUNT DOWN" is displayed below. After the countdown starts, the effective end date of the can is displayed at any time. The effective storage period of the items in the can can be displayed at any time. When it is used again, the new data can be used again after resetting by the reset button.

After the countdown starts, the effective end date, start date, and hour and minute are always automatically saved (unless the reset button is pressed). When the battery is dead or low, the effective end date and hour and minute are still stored when the battery is replaced. In the storage circuit 14, only the current date needs to be re-entered, and the processing circuit 16 defaults to the previously entered valid end date and hours and minutes.

For example, the start date is: 16-01-2014, the time is: 17:23, and the effective end date is: On 2014-3-16, when the battery was used at 17:23 of 15-02-2014, the power was turned off, and the user found that the battery was dead on February 25th. After replacing the new battery, the display only prompts to re-enter the current date. You do not need to re-enter the valid end date and hours, minutes, and then press and hold the "confirm" button for 2 seconds, restart the calculation of the countdown, the calculation time from 17:23 of 25-02-2014 to the end date of 2014-3-16 17:23.

In the meantime, the three LEDs have a flashing function. When the “on key (confirmation key)” is pressed, the three LEDs start to circulate slowly. When the remaining days are less than zero days, the red LED (RLED) starts to flash quickly, blue. The LED (BLED) and the green LED (GLED) do not work. At this time, when the "on key (confirmation key)" is pressed again, all the LEDs are turned off (the LED is automatically turned off after 40 seconds), that is, when the red LED flashes, the item has been After the shelf life, when the red, green and blue tri-color LEDs gradually become darker and brighter, the items are in the shelf life.

It is worth noting that after the countdown starts, the display is not affected by pressing the "on key (confirmation key)" or unintentionally pressing the other buttons.

Of course, the display can also display changes in battery power in real time.

And by selecting the appropriate cryogenic device, the storage tank can also be used in the refrigerator, that is, it can operate normally in an environment of minus 5 degrees.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the present invention. Within the scope of protection.

Claims

An intelligent storage tank comprising a storage tank container outer casing and a storage tank surface cover, wherein the storage tank surface cover has a display unit for displaying a shelf life of articles in the can, the display unit being embedded in the storage tank Cover the outer surface.
The storage tank according to claim 1, wherein said storage tank container outer casing material is silicon dioxide, said storage tank cover material is PVC, and said display unit is manually adjustable mechanical digital label or electronic Circuit.
The storage tank according to claim 1, wherein said display unit comprises:

a display and a battery that provides a first supply voltage;

a voltage stabilizing circuit that steps down and stabilizes the first power voltage to output a second power voltage, an input end of the voltage stabilizing circuit is connected to the battery positive pole, and the battery negative pole is grounded;

a processing circuit, a power terminal of the processing circuit is connected to an output end of the voltage stabilizing circuit, and a plurality of display output ends of the processing circuit are respectively connected to a plurality of display control ends of the display screen;

a display driving circuit, wherein a power supply end of the display driving circuit is connected to an output end of the voltage stabilizing circuit, and a first output end to a third output end of the display driving circuit and a first display driving end of the processing circuit respectively Connecting to the third display driver end;

According to the circuit, the power supply end of the circuit is connected to the output end of the voltage stabilizing circuit, and the first output end to the fourth output end of the circuit are respectively connected to the first operating end of the processing circuit a fourth operation end is connected, and the control end of the circuit-making circuit is exposed on an outer surface of the storage tank cover;

a crystal oscillation circuit, wherein an input end and an output end of the crystal oscillation circuit are respectively connected to a clock input end and a clock output end of the processing circuit;

And a reset circuit, wherein a power terminal of the reset circuit is connected to an output end of the voltage stabilizing circuit, and an output end of the reset circuit is connected to a reset end of the processing circuit.
The storage tank according to claim 3, wherein the display unit further comprises:

a voltage detecting circuit, wherein the first detecting end and the second detecting end of the voltage detecting circuit are respectively connected to the first voltage detecting end and the second voltage detecting end of the processing circuit;

a storage circuit, a power supply end of the storage circuit is connected to an output end of the voltage stabilization circuit, and a data end and a clock end of the storage circuit are respectively connected to a first read/write end and a second read/write end of the processing circuit .
The storage tank of claim 3 wherein said processing circuit comprises:

Capacitor C3, capacitor C4, capacitor C5, resistor R9 and single chip microcomputer;

The fifth pin and the sixth pin of the single chip are respectively a first read/write end and a second read/write end of the processing circuit, and the seventh pin and the eighth pin of the single chip respectively are the processing a first voltage detecting end and a second voltage detecting end of the circuit, wherein the eleventh to thirteenth pins of the single chip are respectively a first display driving end to a third display driving end of the processing circuit, and the single chip microcomputer The fourteenth to seventeenth pins are respectively the first to fourth operating ends of the processing circuit, and the eighteenth pin of the single chip is the power supply end of the processing circuit and the nineteenth pin The twentieth pin and the twenty-first pin of the single chip are the clock output end of the processing circuit and the clock input end, and the twenty-third pin of the single chip passes the resistor R9 and the first The second power supply voltage is connected, the twenty-fourth pin of the single chip is grounded, the twenty-fifth pin of the single chip is the reset end of the processing circuit, and the twenty-seventh pin of the single chip passes the capacitor C3 is connected to the twenty-eighth pin of the single chip, the single piece The twenty-ninth pin of the machine is connected to the second power voltage through the capacitor C5, and the thirty-th pin of the single chip is connected to the second power voltage, and the thirty-first pin of the single chip Connected to the second power voltage through the capacitor C4, the thirty-second to thirty-sixth pins and the thirty-eighth to sixtieth pins of the single chip are multiple display outputs of the processing circuit end;

The single chip microcomputer is an OTP8819 type microprocessor.
The storage tank according to claim 3, wherein said voltage stabilizing circuit comprises:

Capacitor C1, capacitor C2 and voltage regulator chip;

The input end of the voltage stabilizing chip is connected to the input end of the voltage stabilizing circuit and the one end of the capacitor C1, and the ground end of the voltage stabilizing chip is grounded at the same time as the other end of the capacitor C1. The output terminal outputs the second power voltage for the output end of the voltage stabilizing circuit, and the output end of the voltage stabilizing chip is also grounded through the capacitor C2.
The storage tank of claim 3 wherein said circuit is comprised of:

a first switch, a second switch, a third switch, and a fourth switch;

a conducting end of the first switch, the second switch, the third switch, and the fourth switch is simultaneously a power end of the circuit, the first switch, the second switch The third switch and the other conductive end of the fourth switch are respectively a first output end, a second output end, a third output end, and a fourth output end of the circuit according to the circuit, the first The control terminals of the switch, the second switch, the third switch, and the fourth switch are respectively user operating terminals of the circuit-making circuit.
The storage tank according to claim 3, wherein said crystal oscillation circuit comprises:

Capacitor C7, capacitor C8 and crystal oscillator;

One end of the crystal oscillator is grounded through the capacitor C7 at the output end of the crystal oscillator circuit, and the other end of the crystal oscillator is grounded through the capacitor C8 at the input end of the crystal oscillator circuit.
A storage tank according to claim 3, wherein said display screen is an LCD display, an LED display or a dot matrix screen.
The storage tank according to claim 3, wherein said display driving circuit comprises:

Resistor R2, resistor R3, resistor R4, red LED, green LED and blue LED;

One end of the resistor R2, the resistor R3, and the resistor R4 are simultaneously the power terminal of the display driving circuit, and the other ends of the resistor R2, the resistor R3, and the resistor R4 are respectively illuminated with the red light. a diode, the green light emitting diode, and an anode of the blue light emitting diode, wherein the red light emitting diode, the green light emitting diode, and the cathode of the blue light emitting diode are respectively a first output end of the display driving circuit , a second output end, and a third output end.