阅读说明：本技术 一种传感数签机 (Sensing number is signed machine ) 是由 赵文凯 闫新 王涛涛 于 2019-09-28 设计创作，主要内容包括：本发明公开了一种传感数签机,其包括：测签圆筒、薄膜压力传感器、显示屏、中央处理器、电源、基座、键盘、A/D转换器和电源控制芯片,其中,薄膜压力传感器呈圆形,设置在测签圆筒的底部,并且与测签圆筒的底部等大,薄膜压力传感器与A/D转换器信号连接,A/D转换器和电源控制芯片均与中央处理器信号连接,电源与电源控制芯片信号连接。本发明的有益之处在于：(1)结构简洁,体积小巧,便于携带,更实用；(2)耗电少,充电锂电池即可满足需要,并且工作时无噪音；(3)通过薄膜压力传感器采集签子的压力信息,薄膜压力传感器输出模拟信号,该模拟信号经A/D转换后再经中央处理器处理,最终输出签子的数量,数签效率高并且精确。(The invention discloses a sensing and counting machine, which comprises: survey and sign drum, film pressure sensor, display screen, central processing unit, power, base, keyboard, AD converter and power control chip, wherein, film pressure sensor is circular, sets up in the bottom of surveying the drum of signing to with survey the bottom of signing the drum and wait big, film pressure sensor and AD converter signal connection, AD converter and power control chip all with central processing unit signal connection, power and power control chip signal connection. The invention has the advantages that: (1) the structure is simple, the volume is small, the carrying is convenient, and the practicability is higher; (2) the power consumption is low, the rechargeable lithium battery can meet the requirement, and no noise is generated during working; (3) the film pressure sensor is used for collecting the pressure information of the sticks, the film pressure sensor outputs analog signals, the analog signals are processed by the central processing unit after being subjected to A/D conversion, the number of the sticks is finally output, and the stick counting efficiency is high and accurate.)

1. A sensor-based digital signature machine, comprising: survey and sign drum (1), film pressure sensor (2), display screen (3), central processing unit (4), power (5), base (6), keyboard (7), AD converter (8) and power control chip (9), wherein:

the measuring and labeling 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 as large as the bottom of the label measuring cylinder (1);

the central processing unit (4), the power supply (5), the A/D converter (8) and the power supply control chip (9) are all arranged inside the base (6), wherein the A/D converter (8) and the power supply control chip (9) are 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);

display screen (3) and keyboard (7) all set up the top surface at base (6) to the two all with central processing unit (4) signal connection.

2. The sensor tag machine according to claim 1, characterized in that the central processor (4) is a microprocessor of the MSP430G series.

3. A sensor tag machine according to claim 1, characterized in that the power supply (5) is a rechargeable lithium dc battery.

4. A sensor digital signature machine according to claim 1, characterised in that said keyboard (7) provides at least 5 keys, these 5 keys being respectively: the key comprises a power-on key, a power-off key, a counting key, a clear key and a storage key.

Technical Field

The invention relates to a number-signing machine, in particular to a sensing number-signing machine, and belongs to the technical field of counting devices.

Background

With the development of the catering industry and the improvement of the living standard of people, skewer shops, barbecue shops and the like are more and more popular. While enjoying the food, these merchants are plagued by the problem of having multiple tags.

Currently, there are three main ways of counting tags: manual number sticks, weighing number sticks and number sticks of number sticks counting machine.

Manual signing is inefficient and may result in missed and numerous instances due to environmental influences.

The weighing and counting efficiency is high, but the error is large, and the charging result is not very accurate.

The automatic countersigning machine has the advantages of high countersigning efficiency, small error and accurate charging result, but most of the existing countersigning machines adopt a mechanical transmission mode and utilize a photoelectric counting sensor to count so as to achieve the purpose of automatic countersigning, the structure of the countersigning machine is complex, the size is large, a large amount of electric energy needs to be consumed in the working process, and for a restaurant which operates independently, the implementation cost is high, and the feasibility in practical application is not high.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide the sensing tag counter which is small in size, low in power consumption, high in tag counting efficiency and accurate.

In order to achieve the above object, the present invention adopts the following technical solutions:

a sensor-based digital signature machine, comprising: survey and sign drum, film pressure sensor, display screen, central processing unit, power, base, keyboard, AD converter and power 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 circular, is arranged at the bottom of the label measuring cylinder and is as large as the bottom of the label measuring cylinder;

the central processing unit, the power supply, the A/D converter and the power supply control chip are all arranged inside the base, wherein the A/D converter and the power supply control chip are 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;

display screen and keyboard all set up the top surface at the base to the two all with central processing unit signal connection.

The sensing and counting machine is characterized in that the central processing unit adopts an MSP430G series microprocessor.

The sensing and counting machine is characterized in that the power supply adopts a direct-current rechargeable lithium battery.

The sensing and counting machine is characterized in that the keyboard provides at least 5 keys, and the 5 keys are respectively: the key comprises a power-on key, a power-off key, a counting key, a clear key and a storage key.

The invention has the advantages that:

(1) the structure is simple, the volume is small, the carrying is convenient, and the practicability is higher;

(2) the power consumption is low, the rechargeable lithium battery can meet the requirement, and no noise is generated during working;

(3) the film pressure sensor is used for collecting the pressure information of the sticks, the film pressure sensor outputs analog signals, the analog signals are processed by the central processing unit after being subjected to A/D conversion, the number of the sticks is finally output, and the stick counting efficiency is high and accurate.

Drawings

Fig. 1 is a schematic structural diagram of a sensing digital signature machine provided by the invention.

The meaning of the reference symbols in the figures: 1-measuring cylinder, 2-film pressure sensor, 3-display screen, 4-central processor, 5-power supply, 6-base, 7-keyboard, 8-A/D converter, 9-power supply control chip and 10-flexible flat cable.

Detailed Description

The invention is described in detail below with reference to the figures and the embodiments.

Referring to fig. 1, the present invention provides a sensing digital signature machine comprising: the label measuring 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 measuring label 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 as large as the bottom of the label measuring cylinder 1; the central processing unit 4, the power supply 5, the A/D converter 8 and the power supply control chip 9 are all arranged inside the base 6, wherein the A/D converter 8 and the power supply control chip 9 are 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 processor 4.

1. Thin film pressure sensor

The membrane pressure sensor 2 is a type of resistive pressure sensor having high sensitivity and excellent stability. The film pressure sensor 2 is circular and is equally large as the bottom of the label cylinder 1, and the pressure applied to the sensor film area can be converted into a change in resistance value, the higher the pressure, the lower the resistance. The film pressure sensor 2 is arranged at the bottom of the label measuring cylinder 1 and can be used for weighing the weight of the label and sensing the pressure.

2. A/D converter

The a/D converter 8 is in signal connection with the membrane pressure sensor 2 and is used to convert the pressure signal measured by the membrane pressure sensor 2 into a digital signal.

3. Central processing unit

In embedded design applications, a general microprocessor has a/D, D/A, SPI functions, but some low-cost microprocessors do not have these functions completely.

As a preferred solution, the central processing unit 4 is a MSP430G series microprocessor, for example: MSP430G 2231 processor. The MSP430G 2231 processor is a low-cost 16-bit processor proposed by TI, integrates a 16-bit Timer, an I2C/SPI interface, a 10-bit A/D and the like, and can be better applied to the invention.

4. Power supply control chip

The power supply control chip 9 is connected with the central processing unit 4 and is also connected with the power supply 5 at the same time, and the power supply 5 provides voltage required by 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 for 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 has no noise during work.

6. Keyboard with a keyboard body

The keypad 7 provides at least 5 keys, the 5 keys being: the key comprises a power-on key, a power-off key, a counting key, a clear key and a storage key.

The sensing tag counter provided by the invention has the following working principle:

the bamboo or iron sticks are put into the stick cylinder 1, the film pressure sensor 2 at the bottom of the stick cylinder 1 senses the pressure change and generates a changed analog signal, the analog signal is amplified by a circuit and then 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 processor 4 for operation processing, and the central processor 4 outputs the processing result (the number of sticks) to the display screen 3 according to the keyboard command and the program.

It should be noted that the above-mentioned embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the protection scope of the present invention.