CN212280255U

CN212280255U - An electronic smart coin piggy bank

Info

Publication number: CN212280255U
Application number: CN202020369534.2U
Authority: CN
Inventors: 张海; 李士心; 刘小钰
Original assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Current assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2021-01-05
Anticipated expiration: 2030-03-23

Abstract

The utility model provides an electronic intelligent coin deposit box which detects coins through an electromagnetic eddy current sensor and realizes systematic intelligent management. Provide a keyboard module for numeric keys, a display module for displaying amount and time, a clock module for generating time, a voice broadcast module and a fault alarm module; the LM2596 voltage drop power supply module is connected to the power supply interface of the control unit for power supply, so The L66S type coin identification module is bidirectionally connected to the control unit, the keyboard module outputs a signal receiving serial port connected to the control unit, and the display output serial ports of the control unit are respectively output and connected to the display module, and the voice The broadcast module and the fault alarm module, the clock serial port of the control unit is bidirectionally connected to the clock module. The new device solves the problems of high cost and complicated wiring and installation of existing intelligent coin management systems on the market without losing the richness of functions and reliability of performance.

Description

Electronic type intelligence coin saving pot

Technical Field

The utility model belongs to electronic type systematization intelligence coin management field especially relates to an electronic type intelligence coin saving pot.

Background

The image processing technology is used to distinguish the authenticity of the coin in foreign countries, but the cost is too expensive and the cost performance is particularly low. The difference is found to be particularly large by experimental results of students in early stage of China who use the mechanical recognition principle to detect the authenticity of coins. The coin recognition device is designed by the researchers of China, namely Mi Ji, the system is controlled by a single chip microcomputer, and an electromagnetic eddy current sensor and an operational amplification circuit are added to correspondingly process some signals collected by the sensor. Later scholars read the measured value of the sensor by using a special weighing integrated chip with a high-precision amplifier and an A/D function according to the difference of the quality of different types of coins and send the measured value to a single chip microcomputer system, and finally, the closest quality is searched one by using a table look-up method to identify the quantity and the amount of the coins. In addition, some intelligent saving pots sold in the market only attach importance to peripheral design, but have no practical value, and are fake actions which confuse consumer groups, so that the real market demand is ignored.

Disclosure of Invention

Aiming at the existing defects, the utility model aims to provide an electronic intelligent coin saving pot, after the system is started, under the premise that a single chip microcomputer is used as a control unit, a coin identification circuit is used for distinguishing the true coin from the false coin, when the false coin is detected, the system automatically returns the coin through the control unit, and the false coin is prevented from being received by mistake; meanwhile, the liquid crystal display can display the sum of money deposited and the total sum on the liquid crystal screen in real time, and can also display time by matching with a clock chip, so that the saving pot can be used as a clock in a non-access state; then voice prompt can be carried out on each deposit amount and the current total invested amount; the device is also provided with an alarm circuit for judging whether the system fault is triggered; and the user can select and switch the functions by using the key circuit according to the requirement.

In order to achieve the above object, the technical solution of the present invention is thus achieved.

An electronic intelligent coin saving box comprises a control unit for main circuit control, a power supply module for power supply, a coin identification module, a keyboard module for providing digital keys, a display module for displaying money amount and time, a clock module for generating time, a voice broadcast module and a fault alarm module; the power supply module supplies power and connects the power supply interface of the control unit, the coin recognition module is in bidirectional conduction connection with the control unit, the output of the keyboard module is connected to the signal receiving serial port of the control unit, the display output serial port of the control unit is in output connection with the display module respectively, the voice broadcast module is in communication with the fault alarm module, and the clock serial port of the control unit is in bidirectional conduction connection with the clock module.

Further, the control unit for controlling the main circuit is a single chip microcomputer of type STC89C52, and the control unit comprises a crystal oscillator circuit and a reset circuit.

Further, the power supply module for supplying power is a voltage drop type power supply integrated circuit of the model LM 2596.

Furthermore, the coin identification module is a coin identification sensor of model L66S, and uses a sound sensitive sensor, a metal inclined plane, an electromagnetic induction sensor and an infrared sensor.

Further, the keyboard module for providing the number keys is an independent keyboard, and the control unit also controls the connection function selection keys.

Further, the display module for displaying the money and the time is a 12864 liquid crystal dot matrix display screen.

Further, the clock module for generating time is a clock circuit with a DS1302 chip as a core.

Further, the voice broadcast module is a voice circuit with a WT588D chip as a core.

Furthermore, the fault alarm module is an alarm circuit taking indication lamp prompt as a core.

Compared with the prior art, multi-functional intelligent electron coin saving pot have following advantage:

the detection device is an intelligent and systematic coin management device based on the single chip microcomputer, and has the advantages of simple structure, low cost, rich functions, simplicity and convenience in installation, reliable performance and the like, and the application prospect is wide.

Drawings

Fig. 1 is a functional structure diagram of an embodiment of the present invention;

description of reference numerals:

1-single chip microcomputer control unit module; 2-a power supply module; 3-a coin recognition module; 4-digital key module; 5-a liquid crystal display module; 6-a clock module; 7-a voice module; 8-fault alarm module.

Fig. 2 is a schematic diagram of a circuit structure of a control unit according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a circuit structure of a power supply module according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a coin recognition circuit structure according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a digital key circuit structure according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a circuit structure of a display module according to an embodiment of the present invention.

Fig. 7 is a schematic circuit diagram of a clock module according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of a circuit structure of a voice module according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of a fault alarm circuit according to an embodiment of the present invention.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the utility model provides an electronic type intelligent coin saving box, including the control unit 1 that is used for the main circuit control, the LM2596 pressure drop type power module 2 that is used for supplying power, the L66S type coin identification module 3 that is used for discerning the coin, be used for providing the keyboard module 4 of number button, be used for showing display module 5 of amount of money and time, be used for producing the clock module 6 of time, be used for voice broadcast voice module 7 that the suggestion and be used for trouble warning trouble alarm module 8; the LM2596 voltage-drop type power supply module 2 is in power supply connection with a power supply interface of the control unit 1, the L66S type coin recognition module 3 is in bidirectional conduction connection with the control unit 1, the keyboard module 4 is in output connection with a signal receiving serial port of the control unit 1, a display output serial port of the control unit 1 is in output connection with the display module 5, the voice broadcast module 7 and the fault alarm module 8 respectively, and a clock serial port of the control unit 1 is in bidirectional conduction connection with the clock module 6.

As shown in fig. 2, the main controller circuit of the electronic intelligent coin saving tank includes a main control chip STC89C52 single chip microcomputer U1, which includes a crystal oscillator circuit and a reset control circuit, and includes an electrolytic capacitor C3, resistors R1, R2, capacitors C1, C2, and a crystal oscillator P1; the pin 40 of the U1 is externally connected with a power supply, and the pin 20 of the U1 is grounded; the pin 31 of the U1 is connected with the resistor R1 in series and connected with a power supply, the two ends of the crystal oscillator P1 are respectively connected with the pin 18 and the pin 19 of the U1 and respectively connected with one ends of the capacitors C2 and C1, and the other ends of the capacitors C1 and C2 are connected with the ground together; the 2 pin of the P7 is connected with the negative electrode of the electrolytic capacitor C3, the left end of the resistor R2 and the 9 pin of the U1, the positive electrode of the electrolytic capacitor C3 and the 3 pin of the P7 are connected with a power supply, and the other end of the resistor R2 is grounded.

As shown in fig. 3, the power module of the electronic intelligent coin saving box includes a pin J1, capacitors C1, C2, and a chip L7805. Pins J1 and S5 are connected with the ground, pin 1 of the L7805 chip and the right pin of the capacitor C1 are connected with the 12V power supply, pin 2 is connected with the lower end of the capacitor C2, and pin 3 is connected with the other pin of C1 and C2 and is connected with GND.

As shown in FIG. 4, the coin discriminating circuit of the electronic intelligent coin saving can comprises a coin discriminating module P8, wherein the 1 heel power supply of P8 is connected, the 28 heel of the 2 heel U1 of P8 is connected, and the 3 heel ground of P8 is connected.

As shown in fig. 5, the digital key circuit of the electronic intelligent coin saving pot includes keys K3, K4, and K5, the upper end of K3 is connected to pin 21 of U1, the upper end of K4 is connected to pin 22 of U1, the upper end of K5 is connected to pin 23 of U1, and the lower ends of K3, K4, and K5 are grounded together.

As shown in fig. 6, the LCD display circuit of the electronic intelligent coin saving box includes LCD12864 LCD modules P1 and P2, potentiometer R1, resistor R2, and transistor Q1. The pin 2 of the P1, the lower pin of the R1, the upper pin of the R2 are connected with a power supply, and the pin 1 and the upper pin of the R1 are connected with GND; the middle pin of the potentiometer R1 is connected with the pin 3 of the P1; the base of the triode Q1 is connected with the 18 pin of the P2, and the emitter is grounded together with the 1 pin of the P2 and the 20 pin of the P1; the pin 2 of the P2 is connected with the

pins

15, 17 and 19 of the P1 and is connected with a power supply; the 4, 5 and 6 feet of the P1 are connected with the 16, 15 and 14 feet of the P2 respectively and connected with the 25, 26 and 27 feet of the U1 respectively; the pins 7 to 14 of the P1 are correspondingly connected with the pins 13 to 6 of the P2 and are correspondingly connected with the P0I/O port of U1 in sequence from P00 to P07.

As shown in fig. 7, the clock circuit of the electronic intelligent coin saving pot with the DS1302 chip as the core comprises a crystal oscillator Y1, a resistor R8, a resistor R9, a resistor R10 and a battery BT 1; the DS1302 clock chip is characterized in that the 1 st tube heel VCC is connected, the 2 nd tube heel crystal oscillator Y1 is connected, the 3 rd tube heel crystal oscillator Y1 is connected with the lower side pin, the 4 th tube foot is grounded, the 5 th tube foot is respectively connected with the 17 th tube foot of the singlechip U1 and the upper side pin of the resistor R8, the 6 th tube foot is respectively connected with the 16 th tube foot of the singlechip U1 and the upper side pin of the resistor R9, the 7 th tube foot is respectively connected with the 15 th tube foot of the singlechip U1 and the upper side pin of the resistor R10, the lower side pins of the resistor R8, the resistor R9 and the resistor R10 are connected with VCC in a common mode, the 8 th tube heel battery BT1 is connected with the positive pole, and the negative pole of the battery BT2 is grounded.

As shown in fig. 8, the voice broadcasting circuit of the electronic intelligent coin saving box includes a voice module P2 and a speaker, wherein the

pins

1 and 2 of the P2 are connected to the

pins

1 and 2 of the speaker, the

pins

3, 4, 5 and 6 of the P2 are connected to the

pins

39, 38, 37 and 36 of the U1, the pin 7 is connected to VCC, and the pin 8 is connected to GND.

As shown in fig. 9, the malfunction alerting circuit of the electronic intelligent coin saving pot includes R1 and LED, the upper end of R1 is connected to the power supply, the lower end of R1 is connected to the positive electrode of the LED, and the negative electrode of the LED is connected to the pin 7 of U1 and grounded.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electronic type intelligence coin saving pot which characterized in that: the intelligent coin counting machine comprises a control unit for controlling a main circuit, a power supply module for supplying power, a coin identification module, a keyboard module for providing digital keys, a display module for displaying money and time, a clock module for generating time, a voice broadcast module and a fault alarm module; the power module supplies power and connects the power supply interface of the control unit, the coin recognition module is in bidirectional conduction connection with the control unit, the output of the keyboard module is connected to the signal receiving serial port of the control unit, the display output serial port of the control unit is in output connection with the display module respectively, the voice broadcast module is in communication with the fault alarm module, and the clock serial port of the control unit is in bidirectional conduction connection with the clock module.

2. The electronic intelligent coin saving pot of claim 1, wherein: the control unit for the main circuit control is a single chip microcomputer of model STC89C52, and the control unit comprises a crystal oscillator circuit and a reset circuit.

3. The electronic intelligent coin saving pot of claim 1, wherein: the power supply module for supplying power is a model LM2596 voltage drop type power supply integrated circuit.

4. The electronic intelligent coin saving pot of claim 1, wherein: the coin identification module is a model L66S coin identification sensor.

5. The electronic intelligent coin saving pot of claim 1, wherein: the keyboard module for providing the number keys is a stand-alone keyboard.

6. The electronic intelligent coin saving pot of claim 1, wherein: the display module for displaying the money and the time is a 12864 liquid crystal dot matrix display screen.

7. The electronic intelligent coin saving pot of claim 1, wherein: the clock module for generating time is a clock circuit taking a DS1302 chip as a core.

8. The electronic intelligent coin saving pot of claim 1, wherein: the voice broadcast module uses a WT588D chip as a core voice circuit.

9. The electronic intelligent coin saving pot of claim 1, wherein: the fault alarm module is an alarm circuit taking indication of an indicator light as a core.