CN210836192U

CN210836192U - Clamping type rapid currency count machine

Info

Publication number: CN210836192U
Application number: CN202020183327.8U
Authority: CN
Inventors: 刘志壮; 王东; 张文昭
Original assignee: Hunan University of Science and Engineering
Current assignee: Hunan University of Science and Engineering
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-06-23
Anticipated expiration: 2030-02-19

Abstract

The utility model relates to a quick counting currency machine of centre gripping formula, the device include fork clamp, capacitance sensor, electric capacity converting circuit, singlechip, button and demonstration. The capacitance sensor polar plate is fixed in the fork clamp, the paper money is placed in the middle of the capacitance sensor, the capacitance conversion circuit converts the capacitance into digital quantity, and the digital quantity is sent to the singlechip to be processed to obtain the paper money number, and the paper money number is sent to the display to be displayed.

Description

Clamping type rapid currency count machine

Technical Field

The utility model discloses a involve electron, sensing and detection technology field, especially use sensing and detection technology in the aspect of counting currency.

Background

Along with the development of social economy, the nation is richer and richer, the currency circulation is larger and larger, the time consumed by currency counting is more and more, the existing currency counter is very slow according to the number of the bills, and a rapid currency counter is needed to be designed and is suitable for the interior of a bank.

Disclosure of Invention

In order to solve the problem of slow counting of the existing cash register, a clamping type rapid cash register is designed, and the device comprises a forked clamp (1), a flat plate I (2), a flat plate II (3) and a capacitance conversion circuit (4); the flat plate I (2) and the flat plate II (3) are fixed on the clamping head of the fork clamp (1); the plate I (2) and the plate II (3) constitute a capacitor, and are electrically connected to the capacitance conversion circuit (4). The fork-shaped clamp (1) is made of plastic, and the right side of the fork is connected with a spring (1-1) which is used for clamping the right side; the fork head part of the fork-shaped clamp (1) is provided with a hinge I (1-2) and a hinge II (1-3); the flat plate I (2) is fixed on the hinge I (1-2), and the flat plate I (2) can rotate at a small angle; the flat plate II (3) is fixed on the hinge II (1-3), and the flat plate II (3) can rotate at a small angle. The flat plate I (2) and the flat plate II (3) are made of single-side copper clad plates, the flat plate I (2) is provided with an electrode I (2-1), the flat plate II (3) is provided with an electrode II (3-1), and the electrode I (2-1) and the electrode II (3-1) form a capacitor C2. The capacitance conversion circuit (4) adopts a chip AD7150, an electrode I (2-1) is connected to a pin 4 of the chip AD7150, and an electrode II (3-1) is connected to a pin 6 of the chip AD 7150; the chip AD7150 converted the capacitance value of the capacitor C2 into a digital value.

The utility model has the advantages of simple structure, low design and manufacture cost and high currency counting speed.

Drawings

Fig. 1 is an overall structure of a sensor probe, fig. 2 is a fork clamp structure, fig. 3 is a capacitance sensor, fig. 4 is a schematic circuit diagram, and fig. 5 is a banknote measurement diagram;

wherein, 1 is a fork clamp, 2 is a flat plate I, 3 is a flat plate II, 4 is a capacitance conversion circuit, 5 is a singlechip, 6 is a key and 7 is a liquid crystal display.

Detailed Description

The utility model comprises a fork clamp (1), a flat plate I (2), a flat plate II (3), a capacitance conversion circuit (4), a singlechip (5), a key (6) and a display (7); the flat plate I (2) and the flat plate II (3) are fixed on the clamping head of the fork clamp (1); the plate I (2) and the plate II (3) constitute a capacitor, and are electrically connected to the capacitance conversion circuit (4). The capacitance conversion circuit (4), the key (6) and the display (7) are connected to the singlechip (5); the fork-shaped clamp (1) is made of plastic, and the right side of the fork is connected with a spring (1-1) to clamp the right side; the fork head part of the fork-shaped clamp (1) is provided with a hinge I (1-2) and a hinge II (1-3); the flat plate I (2) is fixed on the hinge I (1-2), and the flat plate I (2) can rotate at a small angle; the flat plate II (3) is fixed on the hinge II (1-3), and the flat plate II (3) can rotate at a small angle. The flat plate I (2) and the flat plate II (3) are made of single-side copper clad plates, the flat plate I (2) is provided with an electrode I (2-1), the flat plate II (3) is provided with an electrode II (3-1), and the electrode I (2-1) and the electrode II (3-1) form a capacitor C2. The capacitance conversion circuit (4) adopts a chip AD7150, an electrode I (2-1) is connected to a pin 4 of the chip AD7150, and an electrode II (3-1) is connected to a pin 6 of the chip AD 7150; the chip AD7150 converted the capacitance value of the capacitor C2 into a digital value.

In the embodiment, the singlechip (5) adopts STC12LE5204 AD; the key (6) adopts 3 independent keys SW1, SW2 and SW3, and the functions are respectively defined as self-checking, measuring and function switching; the display (7) employs a liquid crystal LCD 1602.

In this embodiment, a power filter capacitor C3 is arranged around the chip AD7150, reset circuits C1 and R1 are arranged around the single-chip STC12LE5204AD, and a brightness control resistor R2 is arranged around the liquid crystal LCD 1602.

Pins

9, 10 of chip AD7150 are connected to pins 7, 6 of STC12LE5204AD, respectively.

In this embodiment, the chip AD7150 and the single chip STC12LE5204AD use 3.3V power, and the liquid crystal LCD1602 uses 5V power.

The working principle of the utility model is that the bank note is clamped between the flat plate I (2) and the flat plate II (3), the electrode I (2-1) and the electrode II (3-1) form a capacitor C2, the capacitance value of C2 is related to the number of the bank notes, the more the bank notes are, the smaller the C2 value is, and the relationship is a monotonic function; the capacitance value of C2 is converted into a digital value through the chip AD7150, and the single chip microcomputer (5) processes the digital value to obtain the number of paper money and sends the number of paper money to the display (7) for display. During measurement, the currency types with different face values are measured in a switching way through SW 3;

further, the operation process is that the bank notes to be checked are clamped between the flat plate I (2) and the flat plate II (3), the currency type corresponding to the denomination is switched according to SW3, the result of the number of the bank notes obtained by the display (7) is observed according to SW 2.

Claims

1. A clamping type rapid currency count machine is characterized by comprising a fork clamp (1), a flat plate I (2), a flat plate II (3) and a capacitance conversion circuit (4); the flat plate I (2) and the flat plate II (3) are fixed on a clamping head of the fork clamp (1); the plate I (2) and the plate II (3) constitute a capacitor, and are electrically connected to the capacitance conversion circuit (4).

2. The clamping type rapid currency count machine as claimed in claim 1, wherein the fork clamp (1) is made of plastic, and the right side of the fork is connected with a spring (1-1) which is used for clamping the right side; the fork head part of the fork-shaped clamp (1) is provided with a hinge I (1-2) and a hinge II (1-3); the flat plate I (2) is fixed on the hinge I (1-2), and the flat plate I (2) can rotate at a small angle; the flat plate II (3) is fixed on the hinge II (1-3), and the flat plate II (3) can rotate at a small angle.

3. The fast clamp money counter as claimed in claim 1, wherein the plate I (2) and the plate II (3) are made of single-side copper-clad plate, the plate I (2) is provided with the electrode I (2-1), the plate II (3) is provided with the electrode II (3-1), and the electrode I (2-1) and the electrode II (3-1) form a capacitor C2.

4. The clamping type rapid cash register as claimed in claim 1 or 3, wherein the capacitance conversion circuit (4) adopts a chip AD7150, the electrode I (2-1) is connected to the pin 4 of the chip AD7150, the electrode II (3-1) is connected to the pin 6 of the chip AD 7150; the chip AD7150 converted the capacitance value of the capacitor C2 into a digital value.