CN213069883U - Paper counting system - Google Patents
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- CN213069883U CN213069883U CN202022259319.XU CN202022259319U CN213069883U CN 213069883 U CN213069883 U CN 213069883U CN 202022259319 U CN202022259319 U CN 202022259319U CN 213069883 U CN213069883 U CN 213069883U
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Abstract
The utility model discloses a paper counting system, which comprises a paper counting device, a capacitance value measuring module, a main control board module, a key circuit, a power supply module, a short circuit detection circuit and a display module; the paper is put into the paper counting device, oscillation frequency is generated by the capacitance value measuring module, the frequency value sent by the capacitance value measuring module is read by the main control board module in real time through the serial port, the capacitance value to be measured is calculated, so that the paper counting is realized, and the number of the paper is displayed through the display screen; the power supply module comprises two power supply modes, wherein one power supply mode is that a power supply circuit is used for supplying power, and the other power supply mode is that a USB is used for supplying power; the paper counting device is mainly made of PVC plates and common materials in daily production, and is simple in structure; the system has the advantages that: the precision is high, the response is fast, and the cost is low; the utility model discloses remedied the big, paper wearing and tearing and sensing equipment high price that easily cause of invention noise in the past, image acquisition equipment requires high not enough.
Description
The technical field is as follows:
the utility model relates to a paper page number check technical field in printing and copying trade and daily life, in particular to paper counting system.
Background art:
in actual production and life, people often need to check the number of paper sheets quickly, so that the system for quickly checking the number of paper sheets is of great significance.
At present, domestic paper counting systems are mainly divided into two types, one type is a counting system adopting a mechanical counting method, and the system has requirements on the size of paper and also has the problems of high noise, limited speed, easy paper abrasion, low calculation precision and the like; the other is a counting system adopting an ultrasonic wave, ray or image gray scale acquisition method, and the system has the problems of high price of sensing equipment, high requirement on image acquisition equipment and high cost. Therefore, the simple paper counting display system has certain practical application value.
The utility model has the following contents:
the utility model discloses aim at: the system has the functions of accurately and quickly calculating the number of the paper sheets and displaying the result, can overcome the defects of high noise, limited speed, easy paper abrasion, low calculation precision and the like of the traditional mechanical counting system, and can avoid the problems of high cost and the like caused by expensive sensing equipment adopted in a counting system of an ultrasonic, ray and image gray scale acquisition counting method and image acquisition equipment with high equipment requirement.
The utility model discloses a realize like this: a paper counting system comprises a paper counting device, a capacitance value measuring module, a main control panel module, a key circuit, a power supply module, a short circuit detection circuit and a display module; the sheet counting device includes: the device comprises an upper clamping plate, a lower clamping plate, a first sliding shaft, a second sliding shaft, a third sliding shaft, a fourth sliding shaft, a polar plate A, a polar plate B, a heavy object, a base, a lead A, a lead B, an upper lead groove and a lower lead groove; the capacitance measuring module comprises an FDC2214 capacitance sensor and an LC resonance circuit; the main control board module takes STM32F103 as an MCU; the power supply module comprises a power supply circuit and a USB power supply module; the short circuit detection circuit comprises a short circuit prompting small lamp circuit and a buzzer circuit; the display module comprises a 4-pin OLED display screen; the paper counting device is connected with the capacitance value measuring module. The main control board module is respectively connected with the capacitance value measuring module, the key circuit and the display module. The power module is respectively connected with the main control module, the capacitance value measuring module, the key circuit module and the display module. The short circuit detection circuit is connected with the main control board module.
The sheet counting device includes: the device comprises an upper clamping plate, a lower clamping plate, a first sliding shaft, a second sliding shaft, a third sliding shaft, a fourth sliding shaft, a polar plate A, a polar plate B, a heavy object, a base, a lead A, a lead B, an upper lead groove and a lower lead groove; the upper clamping plate and the lower clamping plate are identical in structure, are rectangular and are parallel, holes penetrating through the sliding shafts are formed in four corners of the upper clamping plate and the lower clamping plate, and four sliding shafts are arranged between the upper clamping plate and the lower clamping plate and are respectively a first sliding shaft, a second sliding shaft, a third sliding shaft and a fourth sliding shaft. The main function of the sliding shaft is to ensure that the movable ranges of the upper clamping plate and the lower clamping plate are fixed, and simultaneously ensure that the positions of the polar plate A and the polar plate B are aligned. The four sliding shafts respectively penetrate through the upper clamping plate and the lower clamping plate, and nuts are arranged on the sliding shafts and used for fixing the four sliding shafts so as to ensure that the positions of the four sliding shafts, the upper clamping plate and the lower clamping plate cannot deviate; the polar plate A and the polar plate B are two copper plates which are made of the same material and have the same size, the polar plate A is tightly attached to the inner side of the upper clamping plate, and the polar plate B is tightly attached to the inner side of the lower clamping plate and is positioned right below the polar plate A; a weight is arranged on the outer side of the upper clamping plate, and the weight has the function of ensuring that the paper to be measured is tightly clamped between the upper polar plate and the lower polar plate and ensuring that the measured capacitance value is accurate; the outer side of the lower clamping plate is provided with a base which has the function of ensuring the bottom of the device to be smooth; the lead A is welded on the side edge of the polar plate A, a lead is placed in an upper lead groove reserved in advance along the upper clamping plate, and the other side of the lead A is connected to the capacitance measuring module; and the wire B is welded on the side edge of the polar plate B, a lower wire groove reserved in advance along the lower clamping plate is used for placing the wire, the structure of the wire is consistent with that of the wire A, and the other side of the wire B is connected into the capacitance measuring module.
A heavy object is arranged on the outer side of the upper clamping plate, namely one side facing the sky, and the inner side is the other side; the outer side of the lower splint, namely the side close to the ground, is provided with a base, and the inner side is the side opposite to the inner side of the upper splint.
The upper lead groove and the lower lead groove are respectively provided with a groove capable of placing a lead on the upper clamping plate and the lower clamping plate, the function of the groove is to ensure that the surfaces of the polar plate A and the polar plate B are smooth, so that the distances between the polar plate A and the polar plate B and between the upper clamping plate and the lower clamping plate are equal, when the number of paper sheets is measured, no bulge is formed between the polar plate A and the polar plate B which are tightly attached to the paper sheets and between the upper clamping plate and the lower clamping plate, the flatness is maintained, and the measurement precision is ensured.
The capacitance value measuring module comprises an FDC2214 capacitance sensor and an LC resonance circuit, an inductor L1 and a capacitor C1 are connected to the input end of each detection channel of the FDC2214 capacitance sensor to form the LC resonance circuit, the sensing end of the measured capacitance is connected with the LC resonance circuit to generate an oscillation frequency, and the main control board module reads the frequency value sent by the capacitance value measuring module in real time through a serial port and calculates the measured capacitance value. The module has the main function of calculating the relation between the capacitance value and the number of the measured paper sheets through the calculated capacitance value, thereby realizing the counting of the paper sheets. The capacitance value measuring module provides two channels, and a spare channel is reserved for a user.
The main control board module is used as MCU by STM32F103, and the module main function is for collecting information to carry out arrangement calculation to data, thereby calculating out the relation of this capacitance value and measurement paper quantity, reacing paper quantity, and drive reality module demonstration final paper quantity.
The key circuit comprises a start key, a key1 start measurement key, a key2 enter calibration key, keys 3 and key4 reserve keys, and the keys are connected with the STM32F 103. The module functions primarily to receive instructions from the user to start the system, start the measurement and paper calibration.
The power supply module comprises a power supply circuit and a USB power supply module, wherein the power supply circuit converts 220v voltage into 3.3v voltage for MCU by using a transformer and a bridge rectifier circuit, and the USB power supply module directly supplies power by using a USB interface. The main function of the power supply module is to supply power to the whole circuit and the main control board module.
The short circuit detection circuit comprises a short circuit prompting small lamp circuit and a buzzer circuit; the small lamp prompting circuit comprises a short circuit prompting small lamp LED3, a standby small lamp LED2, a resistor R5 and a resistor R6. The resistors R5 and R6 have the resistance value of 510 ohms, and are used for protecting the small lamp and preventing the small lamp from being damaged due to too large current; the buzzer circuit comprises an active buzzer, an NPN triode and a resistor R4. When short circuit detection is carried out, the two polar plates are tightly attached, the system judges whether the circuit is short-circuited or not, if the circuit is short-circuited, the display module displays short circuit, the short circuit prompt small lamp LED3 is lightened, and the buzzer sounds. The short circuit detection circuit has the function of prompting a user of wrong operation and avoiding the problem of system damage.
The display module comprises a 4-pin OLED display screen, and the OLED display screen is connected with the STM32F 103. The module mainly functions to display the number of the tested paper sheets and the information of whether the tested paper sheets are short-circuited.
Compared with the prior art, the utility model provides a pair of paper counting system possesses following beneficial effect:
(1) the upper and lower clamping plates and the base of the paper counting device are made of PVC materials, so that the paper counting device is low in price and wide in application.
(2) The paper counting device is simple in overall structure and convenient to maintain.
(3) The paper counting device utilizes the sliding shaft and the nut to fix and ensure that the upper clamping plate and the lower clamping plate are kept parallel, thereby ensuring that the positions of the two pole plates are always kept aligned up and down and ensuring the measurement precision.
(3) The circuit adopts a redundancy design, and if a certain part of elements are damaged or the circuit fails in actual use, the circuit can be switched to a redundancy part in time, so that the normal use of the system is ensured.
Description of the drawings:
FIG. 1 is a general block diagram of a paper counting system according to the present invention;
FIG. 2 is a schematic structural view of the paper counting device of the present invention;
fig. 3 is a flowchart of a procedure of the paper counting system of the present invention.
The labels in the figure are:
FIG. 1: the device comprises a paper counting device 1, a capacitance value measuring device 2, a FDC2214 capacitance sensor 2, an LC resonance circuit 2, a main control panel module 3, a key circuit 4, a power supply module 5, a power supply circuit 5-1, a USB power supply module 5-2, a short circuit detection circuit 6, a short circuit prompting small lamp circuit 6-1, a buzzer circuit 6-2 and a display module 7.
FIG. 2: 1-1 upper clamping plate, 1-2 lower clamping plate, 1-3 first sliding shaft, 1-4 second sliding shaft, 1-5 third sliding shaft, 1-6 fourth sliding shaft, 1-7 polar plate A, 1-8 polar plate B, 1-9 weight, 1-10 base, 1-11 lead A, 1-12 lead B, 1-13 upper lead groove and 1-14 lower lead groove.
Detailed Description
Example (b):
the following description of the embodiments of the present invention is provided for the understanding of those skilled in the art.
As shown in fig. 1, a paper counting system includes a paper counting device 1, a capacitance value measuring module 2, a main control board module 3, a key circuit 4, a power module 5, a short circuit detection circuit, and a display module 6; the sheet counting device includes: the device comprises an upper clamping plate 1-1, a lower clamping plate 1-2, a first sliding shaft 1-3, a second sliding shaft 1-4, a third sliding shaft 1-5, a fourth sliding shaft 1-6, a pole plate A1-7, a pole plate B1-8, a weight 1-9, a base 1-10, a lead A1-11, a lead B1-12, an upper lead groove 1-13 and a lower lead groove 1-14; the capacitance measuring module 2 comprises an FDC2214 capacitance sensor 2-1 and an LC resonance circuit 2-2; the main control board module 3 takes the STM32F103 as an MCU; the power supply module 5 comprises a power supply circuit 5-1 and a USB power supply module 5-2; the short circuit detection circuit 6 comprises a short circuit prompting small lamp circuit 6-1 and a buzzer circuit 6-2; the display module 7 comprises a 4-pin OLED display screen; the paper counting device 1 is connected with a capacitance value measuring module 2. The main control board module 3 is respectively connected with the capacitance value measuring module 2, the key circuit 4 and the display module 7. The power module 5 is respectively connected with the main control module 3, the capacitance value measuring module 2, the key circuit module 4 and the display module 7. The short circuit detection circuit 6 is connected with the main control board module 3.
As shown in fig. 2, the sheet counting device includes; the device comprises an upper clamping plate 1-1, a lower clamping plate 1-2, a first sliding shaft 1-3, a second sliding shaft 1-4, a third sliding shaft 1-5, a fourth sliding shaft 1-6, a pole plate A1-7, a pole plate B1-8, a weight 1-9, a base 1-10, a lead A1-11, a lead B1-12, an upper lead groove 1-13 and a lower lead groove 1-14; the upper clamping plate 1-1 and the lower clamping plate 1-2 have the same structure, are rectangular and are parallel, holes penetrating through sliding shafts are arranged at four corners of the upper clamping plate and the lower clamping plate, and four sliding shafts are arranged between the upper clamping plate and the lower clamping plate and are respectively a first sliding shaft 1-3, a second sliding shaft 1-4, a third sliding shaft 1-5 and a fourth sliding shaft 1-6. The function of the sliding shaft is to ensure that the movable range of the upper clamping plate 1-1 and the lower clamping plate 1-2 is fixed, and simultaneously ensure that the polar plates A1-7 are aligned with the polar plates B1-8. The four sliding shafts respectively penetrate through the upper clamping plate and the lower clamping plate, and nuts are arranged on the sliding shafts and used for fixing the four sliding shafts and ensuring that the positions of the four sliding shafts, the upper clamping plate 1-1 and the lower clamping plate 1-2 cannot deviate; the polar plate A1-7 and the polar plate B1-8 are two copper plates which are made of the same material and have the same size, the polar plate A1-7 is tightly attached to the inner side of the upper clamping plate, and the polar plate B1-8 is tightly attached to the inner side of the lower clamping plate and is positioned right below the polar plate A1-7; a weight 1-9 is arranged on the outer side of the upper clamping plate 1-1, and has the function of ensuring that the paper to be measured is tightly clamped between the upper polar plate and the lower polar plate and ensuring that the measured capacitance value is accurate; the outer side of the lower splint 1-2 is provided with a base 1-10 to ensure the bottom of the device to be smooth; the lead A1-11 is welded on the side edge of the polar plate A1-7, the lead is placed in a groove of an upper lead 1-13 reserved in advance along the upper clamping plate 1-1, and the other side of the lead A1-11 is connected with a capacitance value measuring module; the lead B1-12 is welded on the side of the polar plate B1-8, the lead is put in along the lower lead groove 1-14 reserved in advance of the lower clamping plate, the structure of the lead is consistent with that of the lead A1-11, and the other side of the lead B1-12 is connected to the capacitance measuring module 2.
A heavy object 1-9 is arranged on the outer side of the upper splint 1-1, namely one side facing the sky, and the inner side is the other side; the outer side of the lower splint 1-2, namely the side close to the ground, is provided with a base 1-10, and the inner side is the side opposite to the inner side of the upper splint 1-1.
The upper lead grooves 1-13 and the lower lead grooves 1-14 are respectively provided with a groove for placing a lead on the upper clamping plate 1-1 and the lower clamping plate 1-2, the function of the groove is to ensure that the surfaces of the polar plate A1-7 and the polar plate B1-8 are smooth, so that the distances between the polar plate A1-7 and the polar plate B1-8 and between the upper clamping plate 1-1 and the lower clamping plate 1-2 are equal, when the number of paper sheets is measured, no bulge is formed between the polar plate A1-7 and the polar plate B1-8 which are tightly attached to the paper sheets and between the upper clamping plate 1-1 and the lower clamping plate 1-2, the flatness is maintained, and the measurement precision is ensured.
The capacitance value measuring module 2 comprises an FDC2214 capacitance sensor 2-1 and an LC resonance circuit 2-2, an inductor L1 and a capacitor C1 are connected to the input end of each detection channel of the FDC2214 capacitance sensor 2-1 to form the LC resonance circuit 2-2, the capacitance sensing end 2-1 to be measured is connected with the LC resonance circuit 2-2 to generate an oscillation frequency, and the main control board module 3 reads the frequency value sent by the capacitance value measuring module 2 in real time through a serial port and calculates the capacitance value to be measured. The module has the main function of calculating the relation between the capacitance value and the number of the measured paper sheets through the calculated capacitance value, thereby realizing the counting of the paper sheets. The capacitance value measuring module provides two channels, and a spare channel is reserved for a user.
The main control board module 3 is used as MCU by STM32F103, and the main function of the module is to collect information and to carry out sorting calculation on data, thereby calculating the relation between the capacitance value and the measured paper quantity, obtaining the paper quantity and driving the reality module to display the final paper quantity.
The key circuit 4 comprises a start key, a key1 start measurement key, a key2 enter calibration key, keys 3 and key4 reserve keys, and the keys are connected with the STM32F 103. The module functions primarily to receive instructions from the user to start the system, start the measurement and paper calibration.
The power supply module 5 comprises a power supply circuit 5-1 and a USB power supply module 5-2, wherein the power supply circuit 5-1 converts 220v voltage into 3.3v voltage by using a transformer and a bridge rectifier circuit and supplies the 3.3v voltage to the MCU, and the USB power supply module 5-2 directly supplies power by using a USB interface.
The short circuit detection circuit 6 comprises a short circuit prompting small lamp circuit 6-1 and a buzzer circuit 6-2; the small lamp prompting circuit 6-1 comprises a short circuit prompting small lamp LED3, a standby small lamp LED2, a resistor R5 and a resistor R6. The resistors R5 and R6 have the resistance value of 510 ohms, and are used for protecting the small lamp and preventing the small lamp from being damaged due to too large current; the buzzer circuit 6-2 comprises an active buzzer, an NPN triode and a resistor R4. When short circuit detection is carried out, the two polar plates are tightly attached, the system judges whether the circuit is short-circuited or not, if the circuit is short-circuited, the display module 7 displays short circuit, the short circuit prompt small lamp LED3 is lightened, and the buzzer sounds. The short circuit detection circuit 6 has the function of prompting a user of wrong operation, so that the problem of system damage is avoided.
The display module 7 comprises a 4-pin OLED display screen, and the OLED display screen is connected with the STM32F 103. The module has the function of displaying the number of the tested paper sheets and the information of whether the tested paper sheets are short-circuited.
A sheet counting system of the present embodiment operates according to the following procedure:
as shown in fig. 3, the circuit is powered on, the start button is pressed, the system enters initialization detection, then the system starts short circuit detection, whether the polar plate is short-circuited is judged, if yes, the display module 7 displays "short circuit", the short circuit prompt small lamp LED3 is turned on, the buzzer sounds, if not, the system scans the button, the calibration button is pressed, the prompt is put in paper for calibration, the measurement button is pressed after calibration, the measurement is started and the result is displayed, and finally the system finishes operation.
When paper counting is carried out, a user starts a system to check whether short circuit occurs or not, a calibration key is pressed down after a circuit is normal, calibration is carried out, then the upper clamping plate is lifted up by carrying a heavy object, paper is put into the device from the side and is between the polar plate A1-7 and the polar plate B1-8, the upper clamping plate 1-1 is put down, the device is enabled to compress the paper, and a start measurement key is pressed down, so that the specific number of the paper can be obtained.
The present invention is not limited to the scope of the specific embodiments, and all inventions utilizing the concepts of the present invention will be protected within the scope of the present invention as long as the modifications thereof are within the spirit and scope defined by the appended claims.
Claims (7)
1. A sheet counting system characterized by comprising: the device comprises a paper counting device, a capacitance value measuring module, a main control board module, a key circuit, a power supply module, a short circuit detection circuit and a display module; the paper counting device is connected with the capacitance value measuring module, and the main control board module is respectively connected with the capacitance value measuring module, the key circuit and the display module; the power supply module is respectively connected with the main control module, the capacitance value measuring module, the key circuit module and the display module; the short circuit detection circuit is connected with the main control board module;
the sheet counting device includes: the device comprises an upper clamping plate, a lower clamping plate, a first sliding shaft, a second sliding shaft, a third sliding shaft, a fourth sliding shaft, a polar plate A, a polar plate B, a heavy object, a base, a lead A, a lead B, an upper lead groove and a lower lead groove; the upper clamping plate and the lower clamping plate have the same structure, are rectangular and are kept parallel, holes penetrating through the sliding shafts are formed in four corners of the upper clamping plate and the lower clamping plate, and four sliding shafts are arranged between the upper clamping plate and the lower clamping plate and are respectively a first sliding shaft, a second sliding shaft, a third sliding shaft and a fourth sliding shaft; the four sliding shafts respectively penetrate through the upper clamping plate and the lower clamping plate, and are provided with nuts for fixing the four sliding shafts so as to ensure that the positions of the four sliding shafts, the upper clamping plate and the lower clamping plate cannot deviate;
the polar plate A and the polar plate B are two copper plates which are made of the same material and have the same size, the polar plate A is tightly attached to the inner side of the upper clamping plate, and the polar plate B is tightly attached to the inner side of the lower clamping plate and is positioned right below the polar plate A; a heavy object is arranged on the outer side of the upper splint; the outer side of the lower splint is provided with a base; the lead A is welded on the side edge of the polar plate A, the lead is placed in a lead groove reserved in advance along the upper clamping plate, and the other side of the lead A is connected to the capacitance measuring module; the lead B is welded on the side edge of the polar plate B, the lead is placed in a lead groove reserved in advance along the lower clamping plate, the structure of the lead is consistent with that of the lead A, and the other side of the lead B is connected into the capacitance measuring module;
a heavy object is arranged on the outer side of the upper clamping plate, namely one side facing the sky, and the inner side is the other side; the outer side of the lower splint, namely the side close to the ground, is provided with a base, and the inner side is the side opposite to the inner side of the upper splint; the upper lead groove and the lower lead groove are respectively provided with a groove for placing a lead on the upper clamping plate and the lower clamping plate.
2. A sheet counting system according to claim 1, wherein: the capacitance measuring module includes: the detection device comprises an FDC2214 capacitive sensor and an LC resonance circuit, wherein the input end of each detection channel of the FDC2214 capacitive sensor is connected with an inductor L1 and a capacitor C1 to form the LC resonance circuit, and the sensing end of a detected capacitor is connected with the LC resonance circuit.
3. A sheet counting system according to claim 1, wherein: and the main control board module is used as an MCU by the STM32F 103.
4. A sheet counting system according to claim 1, wherein: the key circuit includes: key activation, key1 start measure key, key2 enter calibrate key, key3 and key4 retain key, the key circuit is connected to STM32F 103.
5. A sheet counting system according to claim 1, wherein: the power module includes: the power supply circuit utilizes a transformer and a bridge rectifier circuit to convert 220v voltage into 3.3v voltage to be supplied to the MCU, and the USB power supply module directly supplies power by using a USB interface.
6. A sheet counting system according to claim 1, wherein: the short circuit detection circuit includes: a short circuit prompting small lamp circuit and a buzzer circuit; the small lamp prompting circuit comprises a short circuit prompting small lamp LED3, a standby small lamp LED2, a resistor R5 and a resistor R6; resistors R5 and R6 with the resistance value of 510 ohms; the buzzer circuit comprises a source buzzer, an NPN triode and a resistor R4.
7. A sheet counting system according to claim 1, wherein: the display module is a 4-pin OLED display screen and is connected with the STM32F 103.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022259319.XU CN213069883U (en) | 2020-10-12 | 2020-10-12 | Paper counting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022259319.XU CN213069883U (en) | 2020-10-12 | 2020-10-12 | Paper counting system |
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| Publication Number | Publication Date |
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| CN213069883U true CN213069883U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022259319.XU Expired - Fee Related CN213069883U (en) | 2020-10-12 | 2020-10-12 | Paper counting system |
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| CN (1) | CN213069883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358072A (en) * | 2021-06-03 | 2021-09-07 | 河南科技大学 | Ultrasonic measurement equipment and method for number of layers of plate |
-
2020
- 2020-10-12 CN CN202022259319.XU patent/CN213069883U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358072A (en) * | 2021-06-03 | 2021-09-07 | 河南科技大学 | Ultrasonic measurement equipment and method for number of layers of plate |
| CN113358072B (en) * | 2021-06-03 | 2024-02-06 | 河南科技大学 | Ultrasonic measuring equipment and method for number of layers of plates |
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Granted publication date: 20210427 Termination date: 20211012 |