CN110717572B - Sensing digital signature machine - Google Patents
Sensing digital signature machine Download PDFInfo
- Publication number
- CN110717572B CN110717572B CN201910928831.8A CN201910928831A CN110717572B CN 110717572 B CN110717572 B CN 110717572B CN 201910928831 A CN201910928831 A CN 201910928831A CN 110717572 B CN110717572 B CN 110717572B
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- CN
- China
- Prior art keywords
- power supply
- pressure sensor
- processing unit
- central processing
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 235000021168 barbecue Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
- G06M1/272—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using photoelectric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a sensing digital signature machine, which comprises: the device comprises a label measuring cylinder, a film pressure sensor, a display screen, a central processing unit, a power supply, a base, a keyboard, an A/D converter and a power supply control chip, wherein the film pressure sensor is round and is arranged at the bottom of the label measuring cylinder and is equal to the bottom of the label measuring cylinder in size, the film pressure sensor is in signal connection with the A/D converter, the A/D converter and the power supply control chip are in signal connection with the central processing unit, and the power supply is in signal connection with the power supply control chip. The invention has the advantages that: (1) The structure is simple, the volume is small, the carrying is convenient, and the practicality is higher; (2) The power consumption is low, the rechargeable lithium battery can meet the requirements, and no noise is generated during the working; (3) The film pressure sensor is used for collecting the pressure information of the labels, the film pressure sensor outputs analog signals, the analog signals are processed by the central processing unit after A/D conversion, and finally the quantity of the labels is output, so that the label counting efficiency is high and accurate.
Description
Technical Field
The invention relates to a counting machine, in particular to a sensing counting machine, and belongs to the technical field of counting devices.
Background
With the development of catering industry and the improvement of living standard of people, skewer stores, barbecue stores and the like are more popular. While enjoying food, these stores are plagued by the problem of signing up.
Currently, there are three main ways of counting labels: manually counting the labels, weighing the labels, and counting the labels by a label counting machine.
The efficiency of manual counting is low, and the number of leakage and a plurality of situations can be generated due to environmental influence.
The weighing and counting efficiency is higher, but the error is larger, and the charging result is not very accurate.
The counter has the advantages that the counter has higher counter efficiency, smaller error and more accurate charging result, but most of the existing counter adopts a mechanical transmission mode and utilizes a photoelectric counting sensor to count so as to achieve the purpose of automatic counter, the counter has complex structure and larger volume, a large amount of electric energy is required to be consumed in the working process, and the counter has higher implementation cost and low feasibility in practical application for a restaurant which operates independently.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a sensing counter which is small in size, low in power consumption, high in counter efficiency and accurate.
In order to achieve the above object, the present invention adopts the following technical scheme:
a sensing digital signature machine, comprising: the device comprises a label measuring cylinder, a film pressure sensor, a display screen, a central processing unit, a power supply, a base, a keyboard, an A/D converter and a power supply control chip, wherein:
the label measuring cylinder is vertically arranged on the top surface of the base and sinks towards the inside of the base;
the film pressure sensor is round, is arranged at the bottom of the label measuring cylinder and is equal to the bottom of the label measuring cylinder in size;
the central processing unit, the power supply, the A/D converter and the power supply control chip are all arranged in the base, wherein the A/D converter and the power supply control chip are both in signal connection with the central processing unit, the power supply is in signal connection with the power supply control chip, and the A/D converter is in signal connection with the film pressure sensor;
the display screen and the keyboard are both arranged on the top surface of the base and are both in signal connection with the central processing unit.
The sensing digital signature machine is characterized in that the central processing unit adopts MSP430G series microprocessors.
The sensing digital signature machine is characterized in that the power supply is a direct-current rechargeable lithium battery.
The sensing digital signature machine is characterized in that the keyboard provides at least 5 keys, and the 5 keys are respectively: the "power on" key, the "power off" key, the "count" key, the "clear" key, and the "store" key.
The invention has the advantages that:
(1) The structure is simple, the volume is small, the carrying is convenient, and the practicality is higher;
(2) The power consumption is low, the rechargeable lithium battery can meet the requirements, and no noise is generated during the working;
(3) The film pressure sensor is used for collecting the pressure information of the labels, the film pressure sensor outputs analog signals, the analog signals are processed by the central processing unit after A/D conversion, and finally the quantity of the labels is output, so that the label counting efficiency is high and accurate.
Drawings
Fig. 1 is a schematic structural diagram of a sensing digital signature machine provided by the invention.
Meaning of reference numerals in the drawings: 1-stick measuring cylinder, 2-film pressure sensor, 3-display screen, 4-CPU, 5-power supply, 6-base, 7-keyboard, 8-A/D converter, 9-power supply control chip, 10-flexible flat cable.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
Referring to fig. 1, the sensing digital signature machine provided by the present invention includes: the device comprises a label measuring cylinder 1, a film pressure sensor 2, a display screen 3, a central processing unit 4, a power supply 5, a base 6, a keyboard 7, an A/D converter 8 and a power supply control chip 9. Wherein, the stick measuring cylinder 1 is vertically arranged on the top surface of the base 6 and sinks towards the inside of the base 6; the film pressure sensor 2 is circular, is arranged at the bottom of the label measuring cylinder 1 and is equal to the bottom of the label measuring cylinder 1 in size; the central processing unit 4, the power supply 5, the A/D converter 8 and the power supply control chip 9 are all arranged in the base 6, wherein the A/D converter 8 and the power supply control chip 9 are both in signal connection with the central processing unit 4, the power supply 5 is in signal connection with the power supply control chip 9, and the A/D converter 8 is in signal connection with the film pressure sensor 2; the display 3 and the keyboard 7 are both arranged on the top surface of the base 6 and are both in signal connection with the central processing unit 4.
1. Film pressure sensor
The film pressure sensor 2 is a resistive pressure sensor having high sensitivity and excellent stability. The film pressure sensor 2 is circular and is as large as the bottom of the measuring stick cylinder 1, and the pressure applied to the film area of the sensor can be converted into the change of the resistance value, and the larger the pressure is, the lower the resistance is. The film pressure sensor 2 is arranged at the bottom of the label measuring cylinder 1 and can be used for weighing a label and sensing pressure.
2. A/D converter
The a/D converter 8 is in signal connection with the membrane pressure sensor 2 for converting the pressure signal measured by the membrane pressure sensor 2 into a digital signal.
3. Central processing unit
In embedded design applications, general microprocessors have a/D, D/A, SPI functions, but some low cost microprocessors do not have these functions entirely.
As a preferred solution, the central processor 4 employs a microprocessor of the MSP430G series, for example: MSP430G 2231 processor. The MSP430G 2231 processor is a low-cost 16-bit processor pushed by TI, integrates 16-bit Timer, I2C/SPI interface, 10-bit A/D and the like, and can be well applied to the invention.
4. Power supply control chip
The power supply control chip 9 is connected with the central processing unit 4 and also connected with the power supply 5, and the power supply 5 provides the voltage required by the work for the central processing unit 4 and the display screen 3 through the power supply control chip 9.
5. Power supply
The power supply 5 only needs to provide the voltage required by the work of the central processing unit 4 and the display screen 3, and the voltage required by the work of the central processing unit 4 and the display screen 3 only needs 3V, so that the direct-current rechargeable lithium battery can meet the requirement, and no noise is generated during the work.
6. Keyboard with keyboard body
The keyboard 7 provides at least 5 keys, the 5 keys being: the "power on" key, the "power off" key, the "count" key, the "clear" key, and the "store" key.
The sensing label counting machine provided by the invention has the following working principle:
the bamboo sticks or the iron sticks are put into the stick measuring cylinder 1, the film pressure sensor 2 at the bottom of the stick measuring cylinder 1 senses pressure change and generates a changed analog signal, the analog signal is amplified by a circuit and then is output to the A/D converter 8, the A/D converter 8 converts the analog signal into a digital signal which is convenient to process, the digital signal is output to the central processing unit 4 for operation processing, and the central processing unit 4 outputs the processing result (number of sticks) to the display screen 3 according to a keyboard command and a program.
It should be noted that, the above embodiments are not intended to limit the present invention in any way, and all the technical solutions obtained by adopting equivalent substitution or equivalent transformation fall within the protection scope of the present invention.
Claims (4)
1. A sensing digital signature machine, comprising: survey and sign drum (1), film pressure sensor (2), display screen (3), central processing unit (4), power supply (5), base (6), keyboard (7), AD converter (8) and power control chip (9), wherein:
the label measuring cylinder (1) is vertically arranged on the top surface of the base (6) and sinks towards the inside of the base (6);
the film pressure sensor (2) is circular, is arranged at the bottom of the label measuring cylinder (1), and is equal to the bottom of the label measuring cylinder (1) in size;
the central processing unit (4), the power supply (5), the A/D converter (8) and the power supply control chip (9) are all arranged in the base (6), wherein the A/D converter (8) and the power supply control chip (9) are both in signal connection with the central processing unit (4), the power supply (5) is in signal connection with the power supply control chip (9), and the A/D converter (8) is in signal connection with the film pressure sensor (2);
the display screen (3) and the keyboard (7) are both arranged on the top surface of the base (6) and are both in signal connection with the central processing unit (4).
2. The sensing digital signature machine according to claim 1, wherein the central processing unit (4) adopts an MSP430G series microprocessor.
3. The sensing digital signage machine according to claim 1, characterized in that the power supply (5) is a direct current rechargeable lithium battery.
4. The sensing digital signage machine according to claim 1, characterized in that the keyboard (7) provides at least 5 keys, the 5 keys being respectively: the "power on" key, the "power off" key, the "count" key, the "clear" key, and the "store" key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910928831.8A CN110717572B (en) | 2019-09-28 | 2019-09-28 | Sensing digital signature machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910928831.8A CN110717572B (en) | 2019-09-28 | 2019-09-28 | Sensing digital signature machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110717572A CN110717572A (en) | 2020-01-21 |
| CN110717572B true CN110717572B (en) | 2023-04-28 |
Family
ID=69212045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910928831.8A Expired - Fee Related CN110717572B (en) | 2019-09-28 | 2019-09-28 | Sensing digital signature machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110717572B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085120A1 (en) * | 2006-01-26 | 2007-08-02 | Chengdu Huoan Measure Technical Center | An ethernet combined electronic weighing apparatus |
| CN202033633U (en) * | 2010-12-14 | 2011-11-09 | 天津理工大学 | GPRS remote energy saving monitoring device of heat exchange station |
| CN109255423A (en) * | 2018-11-21 | 2019-01-22 | 铜川铜人电子科技有限公司 | Automatic stick counting machine people |
-
2019
- 2019-09-28 CN CN201910928831.8A patent/CN110717572B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085120A1 (en) * | 2006-01-26 | 2007-08-02 | Chengdu Huoan Measure Technical Center | An ethernet combined electronic weighing apparatus |
| CN202033633U (en) * | 2010-12-14 | 2011-11-09 | 天津理工大学 | GPRS remote energy saving monitoring device of heat exchange station |
| CN109255423A (en) * | 2018-11-21 | 2019-01-22 | 铜川铜人电子科技有限公司 | Automatic stick counting machine people |
Non-Patent Citations (1)
| Title |
|---|
| 胡辉 ; 杨花雨 ; .基于单片机控制的数控电源设计.商丘职业技术学院学报.2013,(05),全文. * |
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| Publication number | Publication date |
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| CN110717572A (en) | 2020-01-21 |
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