CN105973354A - Intelligent electronic scale system - Google Patents
Intelligent electronic scale system Download PDFInfo
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- CN105973354A CN105973354A CN201610502632.7A CN201610502632A CN105973354A CN 105973354 A CN105973354 A CN 105973354A CN 201610502632 A CN201610502632 A CN 201610502632A CN 105973354 A CN105973354 A CN 105973354A
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- module
- intelligent electronic
- scale system
- processing module
- signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Indicating Measured Values (AREA)
Abstract
The invention discloses an intelligent electronic scale system. The intelligent electronic scale system comprises a data acquisition module, a signal processing module, a singlechip processing module and a display module connected in sequence, wherein the singlechip processing module is also provided with an alarm module and a key processing module. By adopting the technical solution, the obtained result is improved on accuracy and is relatively visible, and better experience is brought to users; and the function of the electronic scale is more perfect by adding the alarm module.
Description
Technical field
The invention belongs to smart electronics field, be specifically related to a kind of intelligent electronic-scale system.
Background technology
Intelligent electronic-scale is a kind of weight-measuring device commonly used in daily life, and it have employed electronic technology, sensor technology etc., and the error of measurement is little, can the requirement of " accurately and fast, automatically " well be met.In actual life, being obtained for promotion and application widely in school, market, factory, hospitals and other places, in international community, the electronic scale accuracy that a lot of western developed countries are developed is high, and reliability is high, it may be said that reached the highest level.They have developed has high accuracy, waterproof, corrosion-resistant and normal work at high pressure electronic scale.At present, although China still has some gaps in electronic scale weighing technology with western developed country.
Accordingly, it is desirable to provide a kind of precision is higher, the higher intelligent electronic-scale of accuracy promotes domestic technique.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide a kind of intelligent electronic-scale system so that precision and the reliability of electronic scale are guaranteed.
A kind of intelligent electronic-scale system, described intelligent electronic-scale system includes data acquisition module, signal processing module, single chip processing module and the display module being sequentially connected with, and is additionally provided with alarm module and keystroke handling module above described single chip processing module.
Preferably, described data acquisition module for being converted to voltage or these electricity forms of electric current by this non electrical quantity of weight of object, in order to follow-up process, output.
Preferably, described data acquisition module includes that pressure transducer, described pressure transducer are resistive pressure sensor.
Preferably, described signal processing module amplifies and signal conversion for signal, including signal amplification module and A/D modular converter.
Preferably, described display module should be mainly used in showing the weight of object, unit price, total price.
Preferably, described keystroke handling module is for being manually entered the unit price of article, it is achieved man-machine interaction.
Preferably, described signal processing module uses high-precision A/D converter HX711.
Technical scheme has the advantages that
A kind of intelligent electronic-scale system that the present invention provides, is converted into electricity by sensor assembly by this non electrical quantity of weight of object so that the electricity of sensor output has certain corresponding relation with the weight of object, processes the data of sensor output；Carrying out the process to signal with single-chip microcomputer, the result so obtained not only accuracy is improved, and the most directly perceived, preferably experiences to user, and also adds alarm module so that the function of electronic scale is more perfect.
Accompanying drawing explanation
Below by drawings and Examples, technical scheme is described in further detail.
Fig. 1 is the system block diagram of the present invention a kind of intelligent electronic-scale system.
Detailed description of the invention
In order to have a clear understanding of technical scheme, its detailed structure be will be set forth in the description that follows.Obviously, the concrete also deficiency of implementing of the embodiment of the present invention is limited to the specific details that those skilled in the art is familiar with.The preferred embodiments of the present invention are described in detail as follows, in addition to these embodiments described in detail, it is also possible to have other embodiments.
With embodiment, the present invention is described in further details below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of intelligent electronic-scale system disclosed in figure, described intelligent electronic-scale system includes data acquisition module, signal processing module, single chip processing module and the display module being sequentially connected with, and is additionally provided with alarm module and keystroke handling module above described single chip processing module.
The control chip of described single chip processing module is STC89C52, the effect of data acquisition module circuit is by this non electrical quantity of the weight of object, be converted to voltage or these electricity forms of electric current, so as follow-up process, output, it is thus desirable to use pressure transducer, in order to improve design accuracy, degree of accuracy and reliability, the present embodiment uses resistive pressure sensor, various mechanics physical quantitys can be converted to the signal of telecommunication by resistance strain type sensor, make mainly by resistance strain effect；The main devices of data processing module is rheostat pressure transducer.Rheostat pressure transducer is made according to resistance strain effect principle.Resistance strain effect refers to that during external shape generation mechanical deformation, internal resistance also occurs the phenomenon of respective change when the effect of conductor stress.The signal that resistance strain gage changes the signal transfer resistance of conductor deformation, but owing to the resistance value of change is smaller, directly measure the result inaccuracy obtained.Therefore, generally use specific change-over circuit and the change of resistance is converted into the change of voltage or electric current.This change-over circuit is through frequently with direct-current bridge.
Resistive pressure sensor is a conventional sensor, has a lot of advantages.Using sensitiveer, certainty of measurement is high, and stability is preferable, and resolving power is high；Application ratio is wide, and many mechanical quantity sensors can use foil gauge to be made；Volume is little, simple in construction；Simple to operation, better user experience, it is simple to telemeasurement and commercialization development；The highest to environmental requirement, can the most normally work, adapt to ability outstanding, superior performance in terms of frequency response.
Signal processing module includes that signal amplifies in the present system and changes two functions with signal, so signal amplification module and A/D modular converter should be included, use integrated high-precision a/d converter HX711, signal amplification module not only it is integrated with inside X711, and contain a high-precision 24 A/D converters, moreover, inside HX711, also it is integrated with amplification and the more required peripheral circuits of translation function, such as regulated power supply, clock oscillator etc..Its advantage is that degree of accuracy is high, low cost, and capacity of resisting disturbance is remarkable by force and response is rapid.Additionally, mainly driven by pin between HX711 and single-chip microcomputer, interface circuit is simple, it is not necessary to be programmed the depositor in chip；HX711 is that a electronic scale that aims at designs A/D converter, is the A/D converter of 24.One amplification adjustable signal amplification module and an A/D modular converter are integrated in inside by it, and function is the most powerful.Chip has two passages A, B, the programmable amplifier of input switch with inside being connected to fetch selects.The programmable-gain of passage A is 128 or 64.The programmable-gain of passage B is 32.Amplification and translation function more required peripheral circuits, such as regulated power supply, clock oscillator etc. also it has been integrated with inside HX711.For simplifying the initialization procedure of start, HX711 uses to power on and automatically resets
Display module should be mainly used in showing the weight of object, unit price, total price, it is mainly designed to make every effort to make alternating interface between man and computer attractive in appearance, uses LCD liquid crystal display, brilliant display module can demonstrate character, therefore it is often used in as character display module, uses more in single chip application.It not only shows abundant in content, also has the advantage that a lot of charactron does not possesses.LCD1602 is the most low in energy consumption, driving voltage is little, display contains much information, and uses the cycle long, will not produce radiation and pollute, and LCD1602 belongs to one the most commonly used in liquid crystal display device.Its running voltage is 5V, has 8 bit data bus and three and controls ports, and also can regulate the brightness of display, can show 16 characters of 2 row, and possess all advantages of LCD MODULE.
Key circuit module is mainly used to be manually entered the unit price of article, realize the function of man-machine interaction, use 4 matrix film keyboards, * 4 matrix film keyboards belong to the one of thin film switch, it is made up of upper circuit, panel, lower circuit, four parts of sealing coat, 16 little key switches, and arranging according to matrix form are internally integrated it.It is that one is the most popular integrates functional with ornamental operating system, and not only good looking appearance, volume are little, and sealing is strong, has the advantages such as dust-proof, moistureproof；Matrix keyboard uses generally as the external equipment of single-chip microcomputer, generally key arrangement is become matrix form.In matrix keyboard, every vertical line and horizontal line all use a button to connect at infall, it is impossible to directly connect.Horizontal line and vertical line stretch out 8 wires after intersecting, and are connected to a port of single-chip microcomputer, may be constructed 16 keypress functions, many one times compared to being directly connected with port by button.Therefore, when the button needed is more, it is the most rational for using matrix method to do keyboard.
Alarm module is mainly made up of buzzer, is that buzzer will sound the alarm when the weight of article exceeds the range of electronic scale, and to prevent device to be damaged, alert circuit connected in series receives a port of single-chip microcomputer.But voltage during single-chip microcomputer output high level is equivalent to Vcc, and the rated voltage of buzzer is less than 5V, and in order to protection circuit can add resistance, the internal resistance of buzzer is hundreds of ohm, selects R=1000 ohm.In addition to more preferable protection circuit, typically it is additionally added NPN type triode.Utilize audion saturated, cut-off time characteristic regard switch use.In the design during no to scale, single-chip microcomputer output high level, now triode ON, buzzer sends alarm, otherwise, do not send alarm.
A kind of intelligent electronic-scale system that the present invention provides, is converted into electricity by sensor assembly by this non electrical quantity of weight of object so that sensor output the weight of electricity and object have certain corresponding relation, the data of sensor output are processed；Carrying out the process to signal with single-chip microcomputer, the result so obtained not only accuracy is improved, and the most directly perceived, preferably experiences to user, and also adds alarm module so that the function of electronic scale is more perfect.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit; although the present invention being described in detail with reference to above-described embodiment; the detailed description of the invention of the present invention still can be modified or equivalent by those of ordinary skill in the field; these are without departing from any amendment of spirit and scope of the invention or equivalent, all within the claims that application is awaited the reply.
Claims (7)
1. an intelligent electronic-scale system, it is characterized in that, described intelligent electronic-scale system includes data acquisition module, signal processing module, single chip processing module and the display module being sequentially connected with, and is additionally provided with alarm module and keystroke handling module above described single chip processing module.
Intelligent electronic-scale system the most according to claim 1, it is characterised in that described data acquisition module for being converted to voltage or these electricity forms of electric current by this non electrical quantity of weight of object, in order to follow-up process, output.
Intelligent electronic-scale system the most according to claim 2, it is characterised in that described data acquisition module includes that pressure transducer, described pressure transducer are resistive pressure sensor.
Intelligent electronic-scale system the most according to claim 1, it is characterised in that described signal processing module amplifies for signal to be changed with signal, including signal amplification module and A/D modular converter.
Intelligent electronic-scale system the most according to claim 1, it is characterised in that described display module should be mainly used in showing the weight of object, unit price, total price.
Intelligent electronic-scale system the most according to claim 1, it is characterised in that described keystroke handling module is for being manually entered the unit price of article, it is achieved man-machine interaction.
Intelligent electronic-scale system the most according to claim 1, it is characterised in that described signal processing module uses high-precision A/D converter HX711.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502632.7A CN105973354A (en) | 2016-07-01 | 2016-07-01 | Intelligent electronic scale system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502632.7A CN105973354A (en) | 2016-07-01 | 2016-07-01 | Intelligent electronic scale system |
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| CN105973354A true CN105973354A (en) | 2016-09-28 |
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| CN201610502632.7A Pending CN105973354A (en) | 2016-07-01 | 2016-07-01 | Intelligent electronic scale system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501258A (en) * | 2019-09-27 | 2019-11-26 | 深圳职业技术学院 | A kind of solid and fluid density general measuring instrument and density measuring method |
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|---|---|---|---|---|
| CN101118173A (en) * | 2007-09-10 | 2008-02-06 | 刘昭元 | Minisize electronic scales |
| CN201876272U (en) * | 2010-11-30 | 2011-06-22 | 上海天沐自动化仪表有限公司 | Digital multichannel display controller instrument |
| CN202119511U (en) * | 2011-04-27 | 2012-01-18 | 昆山市苏俊电子有限公司 | Digital intelligent electronic scale |
| CN202547742U (en) * | 2012-02-09 | 2012-11-21 | 上海第二工业大学 | Piezoresistance sensor based electronic scale |
| CN102798454A (en) * | 2012-08-14 | 2012-11-28 | 昆山大百科实验室设备工程有限公司 | Miniature electronic balance |
| CN202853718U (en) * | 2012-10-15 | 2013-04-03 | 陕西理工学院 | Novel intelligent electronic scale |
-
2016
- 2016-07-01 CN CN201610502632.7A patent/CN105973354A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118173A (en) * | 2007-09-10 | 2008-02-06 | 刘昭元 | Minisize electronic scales |
| CN201876272U (en) * | 2010-11-30 | 2011-06-22 | 上海天沐自动化仪表有限公司 | Digital multichannel display controller instrument |
| CN202119511U (en) * | 2011-04-27 | 2012-01-18 | 昆山市苏俊电子有限公司 | Digital intelligent electronic scale |
| CN202547742U (en) * | 2012-02-09 | 2012-11-21 | 上海第二工业大学 | Piezoresistance sensor based electronic scale |
| CN102798454A (en) * | 2012-08-14 | 2012-11-28 | 昆山大百科实验室设备工程有限公司 | Miniature electronic balance |
| CN202853718U (en) * | 2012-10-15 | 2013-04-03 | 陕西理工学院 | Novel intelligent electronic scale |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501258A (en) * | 2019-09-27 | 2019-11-26 | 深圳职业技术学院 | A kind of solid and fluid density general measuring instrument and density measuring method |
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Application publication date: 20160928 |