CN204346570U - A kind of digital module of electronic weighing device - Google Patents
A kind of digital module of electronic weighing device Download PDFInfo
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- CN204346570U CN204346570U CN201420774623.XU CN201420774623U CN204346570U CN 204346570 U CN204346570 U CN 204346570U CN 201420774623 U CN201420774623 U CN 201420774623U CN 204346570 U CN204346570 U CN 204346570U
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- weighing device
- electronic weighing
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Abstract
The utility model discloses a kind of digital module of electronic weighing device, affiliated field is electronic module design field, comprise signal amplifier, analog to digital converter, microprocessor, memory, 485 communication interfaces, simulating signal is input signal amplifier first, by analog to digital converter, simulating signal is converted into digital signal, microprocessor directly supplies single-chip microcomputer after being transformed by signal, undertaken storing and processing by single-chip microcomputer again, single-chip microcomputer to carry out after process data directly by Signal transmissions to 485 chips, finally by 485 chips by Signal transmissions to instrument, the digital module of the electronic weighing device designed by the utility model, achieve full-automatic compensation, low in energy consumption, anti-interference ability is strong, energy high-speed cruising, save storage chip, reduce module volume, can at the operate at ambient temperature of-40 DEG C ~ 105 DEG C, protect the components and parts in module, save the space of PCB, after power-off, data can not be lost, stable output signal is reliable, long transmission distance.
Description
Technical field
The present invention relates to electronic module design field, particularly relate to a kind of digital module of electronic weighing device.
Background technology
Traditional electronic weighing device is mainly with analog signal detection, simulated reflected signal goes out information parameter in given range, shows as continuous print signal, or within one period of continuous print time interval, the characteristic quantity of its representative information can show as the signal of any number, antijamming capability is weak, auto-compensation ability, data are easily lost, stable output signal is poor, particularly long-distance transmissions is more unstable, therefore design is a kind of can realize full-automatic compensation, low-power consumption, antijamming capability is strong, energy high-speed cruising, save storage chip, reduce module volume, save the space of PCB, after power-off, data are not lost, stable output signal is reliable, the digital module of the electronic weighing device of long transmission distance seems very necessary.
Summary of the invention
Object of the present invention is exactly to overcome prior art when adopting analog signal detection, antijamming capability is weak, auto-compensation ability, data are easily lost, stable output signal is poor, the defect that particularly long-distance transmissions is more unstable, designs a kind of digital module of electronic weighing device, realizes automatically compensating, low-power consumption, antijamming capability are strong, energy high-speed cruising, saves storage chip, reduces module volume, save the space of PCB, after power-off, data are not lost, and stable output signal is reliable, long transmission distance.
The required technical matters solved of the present invention can be achieved through the following technical solutions:
A kind of digital module of electronic weighing device, comprise signal amplifier, analog to digital converter, microprocessor, memory, 485 communication interfaces, first simulating signal inputs described signal amplifier, described signal amplifier is connected with described analog to digital converter, by described analog to digital converter, simulating signal is converted into digital signal, described AfD converter output is connected with described microprocessor, described microprocessor directly supplies described microprocessor after being transformed by signal, described microprocessor to carry out after process data directly by Signal transmissions to described 485 communication interfaces, finally by described 485 communication interfaces by Signal transmissions to instrument.
Described microprocessor mainly to be stored signal by single-chip microcomputer and processes.
Described microprocessor is integrated with EEPROM, Ke Yi ?the operate at ambient temperature of 40 DEG C ~ 105 DEG C.
Described 485 communication interface circuits adopt 485 buses, and its transceiver adopts balance drive and differential received.
Described module can the various communication protocol hardware of way of realization compatible.
Owing to have employed above technical scheme, tool of the present invention has the following advantages:
Adopt signal amplifier, analog to digital converter, microprocessor, memory, the composite design of 485 communication interfaces, the digital module of this electronic weighing device, digital compensation technique is adopted to achieve linear sensor, delayed and temperature characterisitic automatically compensates, single-chip microcomputer power consumption is lower, anti-interference ability is stronger, there is the feature of high-speed cruising, the integrated EEPROM of single-chip microcomputer, save storage chip, reduce module volume, Ke Yi ?the operate at ambient temperature of 40 DEG C ~ 105 DEG C, , protect the components and parts in module, save the space of PCB, after reliable chip hold capacity ensures power-off, data can not be lost, system adopts 485 bus IC as communication interface circuit, there is the ability suppressing common mode interference, the digital signal transmission of employing standard, antijamming capability is strong, stable output signal is reliable, long transmission distance, realize automatic network-building function, can the various communication protocol hardware of way of realization compatible, by the lightning surge testing current of 100kA.
Accompanying drawing explanation
Fig. 1 is digital module figure of the present invention;
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
A kind of digital module of electronic weighing device, comprise signal amplifier, analog to digital converter, microprocessor, memory, 485 communication interfaces, the resistance capacitance of filtering circuit and dimension, simulating signal is input signal amplifier first, signal amplifier is connected with analog to digital converter, by modulus (A/D) converter, simulating signal is converted into digital signal, modulus (A/D) converter output end is connected with microprocessor, microprocessor directly supplies single-chip microcomputer after being transformed by signal, undertaken storing and processing by single-chip microcomputer again, single-chip microcomputer to carry out after process data directly by Signal transmissions to 485 chips, finally by 485 chips by Signal transmissions to instrument, the weight of weighed object is directly read instrument.
Adopt digital compensation technique, set up accurately, digital model reliably, utilize digital processing technology to realize automatically compensating linear sensor, delayed and temperature characterisitic.
Lower, the anti-interference ability of single-chip microcomputer power consumption is comparatively strong, has the feature of high-speed cruising, the integrated EEPROM of single-chip microcomputer, saves storage chip, reduces module volume, at the operate at ambient temperature of-40 DEG C ~ 105 DEG C, can protect the components and parts in module.
The inner integrated EEPROM of data storage circuitry, stores critical data, saves the space of PCB, and after reliable chip hold capacity ensures power-off, data can not be lost.
System adopts 485 bus IC as communication interface circuit, and RS485 bus is as a kind of mechanics of communication of simple and easy cheapness, and its transceiver adopts balance drive and differential received, has the ability suppressing common mode interference.
The digital signal transmission of employing standard, antijamming capability is strong, and stable output signal is reliable, and long transmission distance, can reach 1200m at most.
Realize automatic network-building function.
Can the various communication protocol hardware of way of realization compatible.
By the lightning surge testing current of 100kA.
The digital module of the electronic weighing device designed by the present invention, digital compensation technique is adopted to achieve linear sensor, delayed and temperature characterisitic automatically compensates, single-chip microcomputer power consumption is lower, anti-interference ability is stronger, there is the feature of high-speed cruising, the integrated EEPROM of single-chip microcomputer, save storage chip, reduce module volume, can at the operate at ambient temperature of-40 DEG C ~ 105 DEG C, , protect the components and parts in module, save the space of PCB, after reliable chip hold capacity ensures power-off, data can not be lost, system adopts 485 bus IC as communication interface circuit, there is the ability suppressing common mode interference, the digital signal transmission of employing standard, antijamming capability is strong, stable output signal is reliable, long transmission distance, realize automatic network-building function, can the various communication protocol hardware of way of realization compatible, by the lightning surge testing current of 100kA.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. the digital module of an electronic weighing device, it is characterized in that: comprise signal amplifier, analog to digital converter, microprocessor, memory, 485 communication interfaces, first simulating signal inputs described signal amplifier, described signal amplifier is connected with described analog to digital converter, by described analog to digital converter, simulating signal is converted into digital signal, described AfD converter output is connected with described microprocessor, described microprocessor directly supplies described microprocessor after being transformed by signal, described microprocessor to carry out after process data directly by Signal transmissions to described 485 communication interfaces, finally by described 485 communication interfaces by Signal transmissions to instrument.
2. the digital module of a kind of electronic weighing device according to claim 1, is characterized in that: described microprocessor mainly to be stored signal by single-chip microcomputer and processes.
3. a kind of digital module of electronic weighing device according to claim 1 or 2, is characterized in that: described microprocessor is integrated with EEPROM, can at the operate at ambient temperature of-40 DEG C ~ 105 DEG C.
4. the digital module of a kind of electronic weighing device according to claim 1, is characterized in that: described 485 communication interface circuits adopt 485 buses, and its transceiver adopts balance drive and differential received.
5. the digital module of a kind of electronic weighing device according to claim 1, is characterized in that: described module can the various communication protocol hardware of way of realization compatible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420774623.XU CN204346570U (en) | 2014-12-09 | 2014-12-09 | A kind of digital module of electronic weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420774623.XU CN204346570U (en) | 2014-12-09 | 2014-12-09 | A kind of digital module of electronic weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204346570U true CN204346570U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420774623.XU Expired - Fee Related CN204346570U (en) | 2014-12-09 | 2014-12-09 | A kind of digital module of electronic weighing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204346570U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737962A (en) * | 2014-12-09 | 2016-07-06 | 安徽柯力电气制造有限公司 | Digital module for electronic weighing device |
| CN106726260A (en) * | 2016-11-29 | 2017-05-31 | 王心妍 | A kind of multisensor weighing device for sick bed |
-
2014
- 2014-12-09 CN CN201420774623.XU patent/CN204346570U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737962A (en) * | 2014-12-09 | 2016-07-06 | 安徽柯力电气制造有限公司 | Digital module for electronic weighing device |
| CN106726260A (en) * | 2016-11-29 | 2017-05-31 | 王心妍 | A kind of multisensor weighing device for sick bed |
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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: 20150520 Termination date: 20151209 |
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| EXPY | Termination of patent right or utility model |