CN114898958A - System and method for adjusting digital potentiometer based on multi-channel signal type - Google Patents
System and method for adjusting digital potentiometer based on multi-channel signal type Download PDFInfo
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- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000012795 verification Methods 0.000 claims description 11
- 238000007405 data analysis Methods 0.000 claims description 7
- 238000013500 data storage Methods 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 238000013524 data verification Methods 0.000 claims description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/14—Adjustable resistors adjustable by auxiliary driving means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/16—Adjustable resistors including plural resistive elements
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Abstract
The invention discloses a system and a method for adjusting a digital potentiometer based on a multi-channel signal type, which relate to the field of digital potentiometers and comprise a detection module, a control module and a control module, wherein the detection module is arranged at each channel interface of the digital potentiometer and is used for detecting the voltage of each channel of the digital potentiometer and outputting voltage data; the data processing unit is used for processing the received voltage data and obtaining the voltage data at the next moment through prediction; the control unit receives the predicted voltage output by the data processing unit and forms a corresponding control instruction; and the adjusting unit receives the control instruction and adjusts the resistance on each channel of the digital potentiometer. The voltage data of each channel at the next moment is judged through the prediction model, and the channel voltage is finely adjusted in advance, so that the digital potentiometer does not need to be temporarily adjusted when the voltage changes suddenly, the digital potentiometer can have more reaction time, instantaneous overload can not be caused, and the protection effect is achieved.
Description
Technical Field
The present invention relates to the field of digital potentiometers, and more particularly, to a system and method for adjusting a digital potentiometer based on a multi-channel signal type.
Background
The digital potentiometer is also called digital control programmable resistor, and is a new type CMOS digital and analog mixed signal processing integrated circuit for replacing traditional mechanical potentiometer (analog potentiometer). The digital potentiometer adopts a numerical control mode to adjust the resistance value, has the obvious advantages of flexible use, high adjustment precision, no contact, low noise, difficult contamination, vibration resistance, interference resistance, small volume, long service life and the like, and can replace mechanical potentiometers in many fields.
The existing digital potentiometer generally adopts a numerical control mode to adjust the resistance value, and after each channel of the digital potentiometer is connected with voltage, once the connected voltage suddenly changes and is overloaded, the numerical control adjustment is slow, the rhythm of the sudden change of the voltage is difficult to follow, the digital potentiometer is overloaded and damaged, and the service life is low.
Disclosure of Invention
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the system for adjusting the digital potentiometer based on the multichannel signal type comprises a detection module, a voltage detection module and a data processing module, wherein the detection module is arranged at each channel interface of the data potentiometer and is used for detecting the voltage of each channel of the data potentiometer and outputting voltage data; the data processing unit is used for processing the received voltage data and obtaining the voltage data at the next moment through prediction; the control unit receives the predicted voltage output by the data processing unit and forms a corresponding control instruction; and the adjusting unit receives the control instruction and adjusts the resistance on each channel of the digital potentiometer.
Furthermore, the digital potentiometer further comprises a compensation unit which receives the control instruction of the control unit and the adjustment result of the adjustment unit and compensates the voltage of each channel of the digital potentiometer.
Furthermore, the potentiometer further comprises a verification module which receives the compensation and adjustment results of the adjustment unit and the compensation unit, verifies the voltage of each channel of the potentiometer and judges whether the voltage at the position is within the threshold range.
Furthermore, the system also comprises an alarm module which outputs alarm information according to the verification result of the verification module.
Furthermore, the data processing unit comprises a signal conversion module, a data storage unit, a data inspection module and a data analysis module; the signal conversion module receives the detection data output by the detection module and converts the detection data into an identifiable type through digital-to-analog conversion; the data storage unit receives and stores the conversion result of the signal conversion module; the data inspection module is used for inspecting the data in the signal conversion module, judging the dispersion and verifying whether the data distribution is normal or not; and the data analysis module predicts the voltage data of the next moment based on the current moment data and the historical data stored in the signal conversion module and based on the binary regression model.
Further, the device also comprises a threshold module and a screening module; the threshold module receives the prediction result output by the data processing unit, compares the prediction result and retrieves the part outside the threshold range; based on the validation results of the threshold module, the culling module culls results that are outside of a threshold range.
The invention also provides a method for adjusting the digital potentiometer based on the type of the multichannel signal, comprising the following steps of S10, checking the voltage of each channel of the multichannel potentiometer; step S20, verifying the data and predicting the voltage at the next moment; step S30, comparing the predicted data with a threshold value, screening out unreasonable data, and outputting a result; and step S40, carrying out redistribution adjustment and compensation according to the prediction result and the corresponding comparison result.
Further, in step S20, a binary regression model is used for prediction.
Further, step S50 is included after step S40, where the adjustment result is checked and fed back, and if the adjustment is invalid, an alarm is given.
Compared with the prior art, the invention has the following beneficial effects:
the channel interface of the digital potentiometer is detected, corresponding voltage data are judged, and therefore the voltage data of each channel at the next moment are judged through the prediction model, the channel voltage is finely adjusted in advance, the digital potentiometer does not need to be adjusted temporarily when the voltage changes suddenly, the digital potentiometer can have more reaction time, instantaneous overload can not be generated, and the protection effect is achieved.
Drawings
FIG. 1 is a schematic flow diagram of the conditioning system of the present invention;
FIG. 2 is a schematic view of the working flow of the adjustment method of the present invention.
Wherein, the names corresponding to the reference numbers are:
10. a detection module; 20. a data processing unit; 21. a signal conversion module; 22. a data storage unit; 23. a data inspection module; 24. a data analysis module; 30. a threshold module; 40. a screening module; 50. A control unit; 60. an adjustment unit; 70. a compensation unit; 80. a verification module; 90. and an alarm module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1
As shown in fig. 1, the system for adjusting a digital potentiometer based on a multi-channel signal type in this embodiment includes a detection module 10 disposed at each channel interface of the digital potentiometer, for detecting a voltage of each channel of the digital potentiometer and outputting voltage data;
a data processing unit 20 for processing the received voltage data and obtaining the voltage data of the next moment by prediction;
a control unit 50 receiving the predicted voltage output by the data processing unit 20 and forming a corresponding control instruction;
and the adjusting unit 60 receives the control instruction and adjusts the resistance of each channel of the digital potentiometer.
The existing digital potentiometer generally adopts a numerical control mode to adjust the resistance value, and after each channel of the digital potentiometer is connected with voltage, once the connected voltage suddenly changes and is overloaded, the numerical control adjustment is slow, the rhythm of the sudden change of the voltage is difficult to follow, the digital potentiometer is overloaded and damaged, and the service life is low.
In the scheme, the channel interface of the digital potentiometer is detected by using the detection module 10, then the data processing unit 20 judges corresponding voltage data, judges the voltage data of each channel at the next moment through the prediction model, and finely adjusts the channel voltage in advance, so that the digital potentiometer does not need to be adjusted temporarily when the voltage generates sudden change, more reaction time can be given to the digital potentiometer, instantaneous overload can not be generated, the digital potentiometer is protected, and the service life is prolonged.
Referring to fig. 1, the system further includes a compensation unit 70, which receives the control instruction from the control unit 50 and the adjustment result from the adjustment unit 60, and compensates the voltage of each channel of the digital potentiometer.
When the digital potentiometer is used, the resistor device arranged outside the digital potentiometer is connected to the interface of the corresponding channel of the digital potentiometer, and when the adjustment unit 60 is difficult to continuously fine-tune the digital potentiometer, the compensation unit 70 is used for performing compensation type adjustment on the digital potentiometer.
Referring to fig. 1, the system further includes a verification module 80, which receives the compensation and adjustment results of the adjustment unit 60 and the compensation unit 70, verifies the voltage of each channel of the potentiometer, and determines whether the voltage is within the threshold range;
the system further comprises an alarm module 90 which outputs alarm information according to the verification result of the verification module 80.
When the device is used, if the verification module 80 verifies the adjustment and compensation result output by the adjustment unit 60 or the compensation unit 70 and confirms that the result is still not satisfactory, an alarm is sent to a user through the alarm module 90 to remind the user to perform manual adjustment or replace other suitable devices.
Referring to fig. 1, the data processing unit 20 includes a signal conversion module 21, a data storage unit 22, a data verification module 23, and a data analysis module 24; wherein,
the signal conversion module 21 receives the detection data output by the detection module 10 and converts the detection data into an identifiable type through digital-to-analog conversion;
the data storage unit 22 receives and stores the conversion result of the signal conversion module 21;
the data inspection module 23 is used for inspecting the data in the signal conversion module 21, judging the dispersion and verifying whether the data distribution is normal or not;
the data analysis module 24 predicts voltage data at the next time based on the binary regression model based on the current time data and the historical data stored in the signal conversion module 21.
When the voltage-based potentiometer is used, the voltage on each channel of the digital potentiometer is predicted based on the binary regression model, and the prediction result is output, so that the voltage of the channels of the potentiometer can be adjusted and compensated in advance, the voltage unbalance is prevented, and the digital potentiometer is damaged.
Referring to fig. 1, a threshold module 30 and a culling module 40 are also included; wherein,
the threshold module 30 receives the prediction result output by the data processing unit 20, compares the prediction result with the prediction result, and retrieves a part out of the threshold range; based on the confirmation result of the threshold module 30, the screening module 40 screens out the result outside the threshold range to remove the obviously wrong data;
the threshold module 30 is established based on the dispersion of the historical data detected by the detection module 10, and by screening out data that obviously does not conform to the dispersion, interference caused by error data can be reduced, and the possibility of erroneous judgment is reduced.
Example 2
As shown in fig. 2, the method for adjusting a digital potentiometer based on a multi-channel signal type in the embodiment includes the following steps,
step S10, checking the voltage of each channel of the multi-channel potentiometer;
step S20, checking the data to predict the voltage at the next moment
Step S30, comparing the predicted data with a threshold value, screening out unreasonable data, and outputting a result;
and step S40, carrying out redistribution adjustment and compensation according to the prediction result and the corresponding comparison result.
In this scheme, through detecting the channel interface of digital potentiometer, judge corresponding voltage data to judge the voltage data of each passageway of next moment through predictive model, the preceding finely tunes channel voltage, thereby makes digital potentiometer need not be when the voltage produces the sudden change, and interim adjusting can make digital potentiometer have more reaction time, can not consequently produce transshipping in the twinkling of an eye, thereby plays the guard action.
Referring to fig. 2, in step S20, a binary regression model is used for prediction.
Further, step S50 is included after step S40, where the adjustment result is checked and fed back, and if the adjustment is invalid, an alarm is given.
When the digital potentiometer is used, when the digital potentiometer is difficult to be automatically adjusted, the digital potentiometer can be manually adjusted by a user through giving an alarm to the user until the digital potentiometer meets the use condition, and the digital potentiometer can be protected.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The technical problems to be solved are still consistent with the present invention and should be included in the scope of the present invention.
Claims (9)
1. The system for adjusting the digital potentiometer based on the multichannel signal type is characterized by comprising a detection module (10) arranged at each channel interface of the digital potentiometer, a voltage detection module and a voltage data output module, wherein the detection module is used for detecting the voltage of each channel of the digital potentiometer and outputting the voltage data; a data processing unit (20) for processing the received voltage data and predicting the voltage data at the next moment; the control unit (50) receives the predicted voltage output by the data processing unit (20) and forms a corresponding control instruction; and the adjusting unit (60) receives the control command and adjusts the resistance of each channel of the digital potentiometer.
2. The system for adjusting digital potentiometers according to claim 1, further comprising a compensation unit (70) for receiving the control command from the control unit (50) and the adjustment result from the adjustment unit (60) to compensate the voltage of each channel of the digital potentiometer.
3. The system for adjusting digital potentiometers according to claim 2, further comprising a verification module (80) for receiving the compensation and adjustment results from the adjustment unit (60) and the compensation unit (70), verifying the voltage of each channel of the potentiometers, and determining whether the voltage is within the threshold range.
4. The system for adjusting digital potentiometers according to claim 3, further comprising an alarm module (90) for outputting alarm information according to the result of the verification by the verification module (80).
5. The system for adjusting digital potentiometers based on a multi-channel signal type as defined in claim 1, wherein the data processing unit (20) comprises a signal conversion module (21), a data storage unit (22), a data verification module (23), a data analysis module (24); the signal conversion module (21) receives the detection data output by the detection module (10) and converts the detection data into an identifiable type through digital-to-analog conversion; the data storage unit (22) receives and stores the conversion result of the signal conversion module (21); the data inspection module (23) is used for inspecting the data in the signal conversion module (21), judging the dispersion and verifying whether the data distribution is normal or not; and the data analysis module (24) predicts the voltage data of the next moment based on the binary regression model based on the current moment data and the historical data stored in the signal conversion module (21).
6. The system for adjusting digital potentiometers based on the multi-channel signal type as defined in claim 5, further comprising a threshold module (30) and a culling module (40); wherein the threshold module (30) receives the prediction result output by the data processing unit (20), compares the prediction result and retrieves the part out of the threshold range; based on the validation results of the threshold module (30), the culling module (40) culls results that are outside of a threshold range.
7. The method for adjusting a digital potentiometer based on multiple channel signal types according to claims 1-6, comprising the steps of,
step S10, checking the voltage of each channel of the multi-channel potentiometer;
step S20, verifying the data and predicting the voltage at the next moment;
step S30, comparing the predicted data with a threshold value, screening out unreasonable data, and outputting a result;
and step S40, carrying out redistribution adjustment and compensation according to the prediction result and the corresponding comparison result.
8. The method for adjusting a digital potentiometer according to claim 7, wherein in step S20, a binary regression model is used for prediction.
9. The method for adjusting digital potentiometers according to claim 7, further comprising step S50 after step S40, wherein the adjustment results are checked and fed back, and if the adjustment is invalid, an alarm is given.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5773902A (en) * | 1980-10-24 | 1982-05-08 | Idec Izumi Corp | Digital potentiometer |
| CN1948970A (en) * | 2006-10-30 | 2007-04-18 | 郭晓松 | High power digital varistor and testing method thereof |
| CN109189144A (en) * | 2018-10-12 | 2019-01-11 | 珠海格力智能装备有限公司 | Method, device and system for controlling power supply voltage |
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- 2022-04-20 CN CN202210414151.6A patent/CN114898958A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5773902A (en) * | 1980-10-24 | 1982-05-08 | Idec Izumi Corp | Digital potentiometer |
| CN1948970A (en) * | 2006-10-30 | 2007-04-18 | 郭晓松 | High power digital varistor and testing method thereof |
| CN109189144A (en) * | 2018-10-12 | 2019-01-11 | 珠海格力智能装备有限公司 | Method, device and system for controlling power supply voltage |
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