CN203929181U - A kind of electronic scales - Google Patents
A kind of electronic scales Download PDFInfo
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- CN203929181U CN203929181U CN201420269506.8U CN201420269506U CN203929181U CN 203929181 U CN203929181 U CN 203929181U CN 201420269506 U CN201420269506 U CN 201420269506U CN 203929181 U CN203929181 U CN 203929181U
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- electronic scales
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- smart card
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Abstract
The utility model provides a kind of electronic scales, comprise the processing module of weighing, LCD MODULE, RFID smart card module for reading and writing, single chip control module, wireless transport module and computer server module, weigh processing module, LCD MODULE and RFID smart card module for reading and writing is all connected with single chip control module by signal wire, and single chip control module is connected with computer server module by wireless transport module.A kind of electronic scales, utilizes the high resistance strain type sensor of sensitivity, and autonomous Design high-speed a/d change-over circuit and filtering and amplifying circuit have improved conversion rate and the measuring accuracy of electronic scales; Adopt RFID REID, identification work need not manual intervention, applicable to various rugged surroundings; WIFI Wireless Data Transmission can be realized the data transmission between a main frame and multiple terminal.
Description
Technical field
The invention relates to a kind of metering outfit, especially relates to a kind of electronic scales of improvement.
Background technology
The infiltration of the mid-50 electronic technology has promoted the development of the instrument of weighing.Since dynamo-electric convolution electronic scales appears in the initial stage sixties, through the developments of more than 40 years and improvement, electronic scales develops into present full-electronic type and digital intelligent from initial mechanical-electrical combination type.The rule of development of electronic weighing technology is constantly strengthen basic research and expand application, expansion new technical field, and to neighboring discipline and industry penetration, comprehensive various technology go to solve the problems such as Weighing, control automatically, information processing.But what in current modern commerce system, application was more ripe is the commercial electronic scale that various marketing informations can be provided.This kind of electronic scales combined closely with price weighing, and realizes management automation.But for wholesale market in bulk, the electronic scales of being only combined with price weighing can not be met the need of market far away.Because such market exists the dealer of the huge and frequent operation of quantity, all there is the behavior that need to carry out at short notice repeatedly crossing of orders in both parties simultaneously.If operator will record, gather for every transaction, increase like that virtually exchange hour, and very easily occurred the phenomenon of error of omission, incorrect posting.
Summary of the invention
The problem that the invention will solve is to combine closely with management automation weighing, and by electronic scales and robot calculator networking, weighing system and operating personnel and computer system is formed to a complete complex control system.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: a kind of electronic scales, comprise the processing module of weighing, LCD MODULE, RFID smart card module for reading and writing, single chip control module, wireless transport module and computer server module, the described processing module of weighing, LCD MODULE and RFID smart card module for reading and writing are all connected with described single chip control module by signal wire, and described single chip control module is connected with described computer server module by described wireless transport module.
Further, the processing module of weighing described in comprises connected successively pressure transducer and A/D converter.
Further, described A/D converter comprises connected successively filtering and amplifying circuit and A/D change-over circuit.
Further, described pressure transducer is LAM-I sensor.
Further, described wireless transport module is WIFI232 module.
Further, also comprise power module, described power module weigh described in being processing module, LCD MODULE, RFID smart card module for reading and writing, single chip control module and wireless transport module power supply.
Advantage and good effect that the invention has are: a kind of electronic scales, utilize the high resistance strain type sensor of sensitivity, and autonomous Design high-speed a/d change-over circuit and filtering and amplifying circuit, improved conversion rate and the measuring accuracy of electronic scales; Adopt RFID REID, by the automatic identification intelligent card of radiofrequency signal and obtain the information datas such as card number in card, name, the amount of money, identification work need not manual intervention, applicable to various rugged surroundings; Intelligent collection, calculating, statistics, WIFI Wireless Data Transmission can be realized the data transmission between a main frame and multiple terminal; The integrated levels such as single-chip computer control system, smart card card-punching system, wireless system for transmitting data are high, and diverse in function is workable.
Brief description of the drawings
Fig. 1 is the structural representation of the invention.
In figure: 1. the processing module of weighing, 2. LCD MODULE, 3.RFID smart card module for reading and writing, 4. single chip control module, 5. wireless transport module, 6. computer server module, 7. pressure transducer, 8. filtering and amplifying circuit, 9.A/D change-over circuit, 10. power module.
Embodiment
As shown in Figure 1, a kind of electronic scales, comprise the processing module 1 of weighing, LCD MODULE 2, RFID smart card module for reading and writing 3, single chip control module 4, wireless transport module 5 and computer server module 6, the described processing module 1 of weighing, LCD MODULE 2 and RFID smart card module for reading and writing 3 are all connected with described single chip control module 4 by signal wire, and described single chip control module 4 is connected with described computer server module 6 by described wireless transport module 5.
The described processing module 1 of weighing comprises connected successively pressure transducer 7 and A/D converter.
Described A/D converter comprises connected successively filtering and amplifying circuit 8 and A/D change-over circuit 9.
Described pressure transducer 7 is LAM-I sensor.
Described wireless transport module 5 is WIFI232 module.
Also comprise power module 10, weigh described in being processing module 1, LCD MODULE 2, RFID smart card module for reading and writing 3, single chip control module 4 and wireless transport module 5 of described power module 10 powered.
First, by weighing, processing module 1 and RFID smart card module for reading and writing 3 carry out image data, and weight data is converted into digital signal, send single chip control module 4 to, sending data to computer server module 6 records by single chip control module 4 via wireless transport module 5 again gathers, control LCD MODULE 2 simultaneously and show the information in smart card, now in LCD screen, can only show the card number of storing in smart card, user name and current weight, and on computing machine, not only can show these data, and computing machine can calculate and show the total price of current article automatically, unit price simultaneously, total price information can send single chip control module 4 to by wireless transport module 5, control LCD MODULE 2 by single chip control module 4 and show unit price, total price information, finally information is write to smart card.
Preferably, the metering circuit of electronic scales pressure transducer 7 is used bridge-type metering circuit.It is converted to the variation of electrostrictive strain resistance the variation of voltage or electric current, the electric signal of sensor output that Here it is.Electric bridge is characterized in: in the time that four arm resistances reach corresponding the relation, electric bridge is output as zero, otherwise just has Voltage-output, can utilizes sensitive galvanometer to measure, so can accurately be measured small resistance variations.Preferably, the pressure transducer 7 that the invention is used is LAM-I sensor.These pressure transducer 7 apparent sizes are 50 × 15.5 × 6.5mm, and volume is little and light, and this makes the invention be lighter than electronic scales similar on market.In addition, compared with other pressure transducers, the accuracy class of this sensor is higher, can weigh well the valuables such as pearl, crystal, and the volume of this pressure transducer 7 is little, light, makes whole electronic scales volume less, convenient carrying.
Preferably, the A/D converter of employing is ADS1230 chip, comprises high-speed a/d change-over circuit 9 and filtering and amplifying circuit 8, and precision can reach 0.01g, really accomplishes the accurate measurement of weight.User's operation of first swiping the card, then on pallet, place product to be measured, the weight simulating signal collecting is converted to quickly and accurately digital signal by final system, and send single chip control module 4 to, by wireless transport module 5, digital signal is sent again to the database of computer server module 6 by single chip control module 4, so just completed efficiently the gatherer process of a weight data.
The invention has RFID smart card module for reading and writing 3, the smart card that its respective user is held.This smart card, except being used for fixing recording user personal information, also has storage unit.This storage unit can be stored the data such as the relevant weighing data of user and the goods amount of money, model.When smart card enters behind induction zone by swiping card equipment, receive the radiofrequency signal that plug-in reader sends, the energy that relies on induction current to obtain sends out the information being stored in smart card, after plug-in reader reading information decoding, deliver to single chip control module 4 and carry out relevant data processing, the information of simultaneously weighing and amount information also can be written in smart card after single chip control module is processed.The invention identification intelligent card it is read and write easily, simple to operate, quick, and there is the outstanding advantage of following RFID radio-frequency (RF) identification: the first, Touchless manipulation, need not manual intervention while completing identification work, and application is convenient; The second, machinery-free wearing and tearing, the life-span is long, and can work in the rugged environments such as various oil stains, contamination by dust; The 3rd, high-speed moving object can be identified and multiple electronic tags can be identified simultaneously; The 4th, read write line has the physical interface of directly final user not being opened, and ensures the security of himself; The 5th, secure data area is except the cryptoguard of electronic tag, and data division can be realized safety management with some algorithms; The 6th, between read write line and label, there is the process of certification mutually, realize secure communication and storage.
Preferably, WIFI wireless transport module 5 adopts WIFI232 series of products, for realizing the two-way transparent forwarding of serial ports to WIFI packet, when use without be concerned about detail, inside modules completes protocol conversion, serial ports one side serial data transparent transmission, WIFI network one side is TCP/IP packet, gets final product assigned work details by simple setting, arrange and can be undertaken by the webpage of inside modules, use AT instruction to carry out by serial ports, also can use software is set, persistence is once set.The power supply parameter of the WIFI wireless transport module 5 of selecting is 3.3V power supply, 300mA, and power consumption is well below common WIFI module.Its core adopts the leading high-quality WIFI module of Marvell specialty, and high speed ARM kernel, ensures processing power and stability.Support IEEE802.11b/g/n standard agreement, the highest support baud rate 460800bps, transmission range can reach hundred meters, really realizes the data transmission between a main frame and multiple terminal, adopt advanced encryption and authentication technique, thereby ensure the security of data, data.
The invention specific aim is more intense, is mainly used in wholesale market in bulk, and product orientation is clear.Compare with existing like product, improved the precision that electronic scales is measured.For meeting the needs of the security of processed user to data, smart card also adopts encryption and authentication technique, not only reduces handling cost, has improved reliability, has saved the time that manpower spending and hand labour delay, and has also improved efficiency, has increased transparency.The invention is protruded integrated, integrated, intelligent, and operability is high, easy to use, with low cost.
Above the embodiment of the invention is had been described in detail, but described content is only for the preferred embodiment of the invention, can not be considered to for limiting practical range of the present invention.All equalization variation and improvement etc. of doing according to the invention scope, within all should still belonging to this patent covering scope.
Claims (6)
1. an electronic scales, it is characterized in that: comprise the processing module of weighing (1), LCD MODULE (2), RFID smart card module for reading and writing (3), single chip control module (4), wireless transport module (5) and computer server module (6), the described processing module of weighing (1), LCD MODULE (2) is all connected with described single chip control module (4) by signal wire with RFID smart card module for reading and writing (3), described single chip control module (4) is connected with described computer server module (6) by described wireless transport module (5).
2. a kind of electronic scales according to claim 1, is characterized in that: described in the processing module (1) of weighing comprise connected successively pressure transducer (7) and A/D converter.
3. a kind of electronic scales according to claim 2, is characterized in that: described A/D converter comprises connected successively filtering and amplifying circuit (8) and A/D change-over circuit (9).
4. a kind of electronic scales according to claim 2, is characterized in that: described pressure transducer (7) is LAM-I sensor.
5. a kind of electronic scales according to claim 1, is characterized in that: described wireless transport module (5) is WIFI232 module.
6. according to a kind of electronic scales described in the arbitrary claim described in claim 1 to 5, it is characterized in that: also comprise power module (10), described power module (10) weigh described in being processing module (1), LCD MODULE (2), RFID smart card module for reading and writing (3), single chip control module (4) and wireless transport module (5) power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269506.8U CN203929181U (en) | 2014-05-17 | 2014-05-17 | A kind of electronic scales |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269506.8U CN203929181U (en) | 2014-05-17 | 2014-05-17 | A kind of electronic scales |
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| Publication Number | Publication Date |
|---|---|
| CN203929181U true CN203929181U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269506.8U Expired - Fee Related CN203929181U (en) | 2014-05-17 | 2014-05-17 | A kind of electronic scales |
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| CN (1) | CN203929181U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104881985A (en) * | 2015-05-28 | 2015-09-02 | 仲恺农业工程学院 | Electronic scale intelligent wireless transmission method, system and equipment applied to internet of things |
| CN106768255A (en) * | 2016-12-07 | 2017-05-31 | 锐马（福建）电气制造有限公司 | A kind of weighing sensor drift compensating method |
| WO2019205584A1 (en) * | 2018-04-25 | 2019-10-31 | 京东方科技集团股份有限公司 | Weighing device, wearable weighing terminal, and weighing method |
| CN111024193A (en) * | 2019-12-31 | 2020-04-17 | 湖南景程电子科技有限公司 | Wireless intelligent weighing sensor system |
-
2014
- 2014-05-17 CN CN201420269506.8U patent/CN203929181U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104881985A (en) * | 2015-05-28 | 2015-09-02 | 仲恺农业工程学院 | Electronic scale intelligent wireless transmission method, system and equipment applied to internet of things |
| CN106768255A (en) * | 2016-12-07 | 2017-05-31 | 锐马（福建）电气制造有限公司 | A kind of weighing sensor drift compensating method |
| CN106768255B (en) * | 2016-12-07 | 2019-02-19 | 锐马（福建）电气制造有限公司 | A kind of weighing sensor drift compensating method |
| WO2019205584A1 (en) * | 2018-04-25 | 2019-10-31 | 京东方科技集团股份有限公司 | Weighing device, wearable weighing terminal, and weighing method |
| CN111024193A (en) * | 2019-12-31 | 2020-04-17 | 湖南景程电子科技有限公司 | Wireless intelligent weighing sensor system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150517 |
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| EXPY | Termination of patent right or utility model |