CN206593745U - A kind of signal-conditioning unit of the analog-to-digital with communication function - Google Patents
A kind of signal-conditioning unit of the analog-to-digital with communication function Download PDFInfo
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- CN206593745U CN206593745U CN201720196342.4U CN201720196342U CN206593745U CN 206593745 U CN206593745 U CN 206593745U CN 201720196342 U CN201720196342 U CN 201720196342U CN 206593745 U CN206593745 U CN 206593745U
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- signal
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- conditioning unit
- communication function
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- 238000004891 communication Methods 0.000 title claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model discloses a kind of signal-conditioning unit of the analog-to-digital with communication function, including central processor CPU (1), A/D modular converters (2) and communication interface (4)；The A/D modular converters (2), communication interface (4) and CPU (1) are communicated to connect.Using signal-conditioning unit of the present utility model, the error produced by very easily can causing weight display to the reasons due to sensor is adjusted, and improves efficiency.
Description
Technical field
The utility model belongs to electronic device field, and in particular to a kind of signal of analog-to-digital with communication function is adjusted
Whole device.
Background technology
Weighing system includes weight display, weighting platform, sensor, signal conditioner.Weighting platform connects sensor, and sensor connects
Signal conditioner is connect, signal conditioner connection weight display, signal conditioner connects multiple sensors, and same weight is pressed in
Identical weight should be shown on each sensor.But, due to the manufacturing process deviation of sensor, it usually needs in signal
It is adjusted on adjuster, output signal is inaccurate on a sensor to be adjusted for identical weight pressure, and output signal is inclined
Big is turned down signal by signal-conditioning unit, and output signal is small to be tuned up signal by signal conditioner, so that identical
The signal that exports on each sensor of weight be identical.
Signal conditioner in the market is mainly adjusted by potentiometer to deviation, in actual mechanical process
In, the difficulty of Regulate signal is very big, the deviation metric very little of sensor, and very high to field adjustment requirement, general staff is very
The difficult unit difference adjustment by deviation is accurate.
Utility model content
The utility model provides a kind of analog-to-digital with communication function for the above technological deficiency of prior art
Signal-conditioning unit, A/D converter connection sensor, the analog signal received from sensor is converted into number by A/D converter
Word signal, is then sent to CPU, and CPU is after treatment gone out the signal received by communications interface transmission, can be very square
Just weight display is caused to the reasons due to sensor produced by error be adjusted.
The purpose of this utility model is achieved through the following technical solutions：
A kind of signal-conditioning unit of the analog-to-digital with communication function, including central processor CPU 1, A/D modular converters
2 and communication interface 4；The A/D modular converters 2, communication interface 4 are communicated to connect with CPU1.
Preferably, the A/D modular converters 2 include several A/D converters.
Preferably, the communication interface 4 includes RS485 interfaces.
Preferably, in addition to protection module 3, the protection module 3 is connected with the A/D modular converters 2.
Preferably, the protection module 3 includes Chip-R.
Preferably, the Chip-R is connected with A/D converter.
Compared with prior art, the signal-conditioning unit of analog-to-digital of the utility model with communication function at least has
Advantages below：
The sensor in A/D modular converters connection external equipment in the utility model, receives the mould transmitted by sensor
Intend signal, the analog signal received is converted into data signal, CPU is then sent to；CPU after treatment, after processing
Signal sent by communication interface to other equipment.Because sensor has deviation, sensor is sent to the mould of A/D converter
Intend signal and also have deviation, A/D converter will be converted to data signal with analog signal devious, and data signal also has partially
Difference, is then sent to CPU；After treatment, the signal after processing is sent to display and adjustment equipment by communication interface by CPU
(such as weight display), display and adjustment equipment show the data signal received, are then adjusted to accurate
Value, so as to improve operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the signal conditioner of analog-to-digital of the utility model with communication function；
Fig. 2 shows for the structure of the signal conditioner connection external equipment of analog-to-digital of the utility model with communication function
It is intended to.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, following examples be it is descriptive,
It is not limited, it is impossible to which protection domain of the present utility model is limited with this.
Make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is this
Invent a part of embodiment, rather than whole embodiments.Embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings
Component can arrange and design with a variety of configurations.Therefore, implementation of the invention below to providing in the accompanying drawings
The detailed description of example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The utility model is illustrated with reference to Fig. 1, as shown in figure 1, carrying the simulation of communication function for the utility model
The structural representation of the signal conditioner of revolution word, including CPU1, A/D modular converter 2, protection module 3 and communication interface 4, its
In：
Communication interface 4, A/D modular converters 2 are communicated to connect with CPU1 respectively, and protection module 3 is connected with A/D modular converters,
Extraneous analog signal sends the signal to A/D conversion modules 2 by protection module 3, and A/D conversion modules 2 are by the simulation received
Signal is converted, and is converted into data signal；Then A/D conversion modules 2 send out the data signal after conversion by communication interface 4
Deliver to other equipment.
CPU1 is used for controlling whole signal conditioner, receives the signal of A/D modular converters 2 and will be believed by communication interface 4
Number send to other equipment.
Communication interface 4 includes RS485 interfaces, for transmitting data；CPU1 is sent signal to other by communication interface 4
Equipment.
A/D modular converters 2 include several A/D converters；The analog signal received is converted into numeral by A/D converter
Signal, is easy to observe and adjusts.
Protection module 3 is used for protection signal adjuster, when sensor degradation etc. breaks down, in order to avoid sensor is short
Pass plays the situation that signal-conditioning unit is burned, and protection module 3 just serves corresponding effect；Protection module 3 includes several
Chip-R, if in the case of short circuit sensor, Chip-R will share corresponding voltage, it is to avoid signal conditioner is burnt
It is bad.
Each A/D converter connects a Chip-R, and then Chip-R is connected with extraneous sensor again, and A/D turns
Parallel operation, Chip-R and sensor are sequentially connected.Chip-R is used for protection signal adjuster；As long as there is one of sensor
Failure (especially short-circuit) may can burn out whole signal-conditioning unit, so each A/D converter and extraneous biography
A Chip-R (protection submodule) will be connected between sensor.
Fig. 2 is the specific of the signal conditioner connection external equipment of analog-to-digital of the utility model with communication function
Structural representation, A/D modular converters 2 include A/D converter 201, A/D converter 202, A/D converter 203, A/D converter
204；Protection module 3 includes Chip-R 301, Chip-R 302, Chip-R 303, Chip-R 304.A/D converter
201st, A/D converter 202, A/D converter 203, A/D converter 204 respectively with CPU1 connections；Chip-R 301, Chip-R
302nd, Chip-R 303, Chip-R 304 turn with A/D converter 201, A/D converter 202, A/D converter 203, A/D respectively
The correspondence of parallel operation 204 is connected；Sensor 701, sensor 702, sensor 703, sensor 704 respectively with Chip-R 301, paster
The corresponding connection of resistance 302, Chip-R 303, Chip-R 304.The analog signal that sensor is sent to passes through Chip-R
To A/D converter 2, the analog signal received is converted into data signal by A/D converter 2, then by data signal send to
Data signal is sent to weight display 6 by CPU1, CPU1 by communication interface 4, and weight display 6 is by data signal with numerical value
Form show.
When same weight stress on different sensors, what weight display was shown varies in weight, different
Sensor between have deviation, the numerical value that weight display is shown also has deviation accordingly；If proofreaded without adjustment, claim
The numerical value that weight display is shown can change always.Button is provided with weight display, button can adjust numerical value, passes through adjustment
Coefficient inside weight display, that is, the numerical value shown is bigger than normal, and coefficient adjustment is small；The numerical value of display is less than normal, and coefficient is turned down,
Digital manipulation, several times, data display is identical to be finished with regard to adjustment, after being adjusted, the number that weight display is finally shown for adjustment
Word is accurately, uniformly.
More than, only the utility model preferably embodiment, but the protection domain of utility model is not limited to
This, any one skilled in the art is in the technical scope that the utility model is disclosed, the change that can be readily occurred in
Or replace, it should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with right
The protection domain of claim is defined.
Claims (6)
1. a kind of signal-conditioning unit of the analog-to-digital with communication function, it is characterised in that including central processor CPU (1),
A/D modular converters (2) and communication interface (4)；The A/D modular converters (2), communication interface (4) and CPU (1) are communicated to connect.
2. the signal-conditioning unit of the analog-to-digital with communication function according to claim 1, it is characterised in that the A/D
Modular converter (2) includes several A/D converters.
3. the signal-conditioning unit of the analog-to-digital with communication function according to claim 1, it is characterised in that the communication
Interface (4) includes RS485 interfaces.
4. the signal-conditioning unit of the analog-to-digital with communication function according to claim 1, it is characterised in that also including protecting
Module (3) is protected, the protection module (3) is connected with the A/D modular converters (2).
5. the signal-conditioning unit of the analog-to-digital with communication function according to claim 4, it is characterised in that the protection
Module (3) includes Chip-R.
6. the signal-conditioning unit of the analog-to-digital with communication function according to claim 5, it is characterised in that the paster
Resistance is connected with A/D converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720196342.4U CN206593745U (en) | 2017-03-01 | 2017-03-01 | A kind of signal-conditioning unit of the analog-to-digital with communication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720196342.4U CN206593745U (en) | 2017-03-01 | 2017-03-01 | A kind of signal-conditioning unit of the analog-to-digital with communication function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206593745U true CN206593745U (en) | 2017-10-27 |
Family
ID=60126261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720196342.4U Expired - Fee Related CN206593745U (en) | 2017-03-01 | 2017-03-01 | A kind of signal-conditioning unit of the analog-to-digital with communication function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206593745U (en) |
-
2017
- 2017-03-01 CN CN201720196342.4U patent/CN206593745U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 |