CN114527454A - Adjusting system and adjusting method for adaptive amplification of ultrasonic signals - Google Patents
Adjusting system and adjusting method for adaptive amplification of ultrasonic signals Download PDFInfo
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- CN114527454A CN114527454A CN202210123722.0A CN202210123722A CN114527454A CN 114527454 A CN114527454 A CN 114527454A CN 202210123722 A CN202210123722 A CN 202210123722A CN 114527454 A CN114527454 A CN 114527454A
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- 230000003321 amplification Effects 0.000 title claims abstract description 35
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 35
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 14
- 238000013500 data storage Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses an adjusting system and an adjusting method for self-adaptive amplification of ultrasonic signals, wherein the adjusting system comprises a processor, the input end of the processor is electrically connected with an ultrasonic receiving module, the output end of the processor is electrically connected with an ultrasonic transmitting module, the output end of the ultrasonic transmitting module is electrically connected with an ultrasonic detecting module, the output end of the ultrasonic detecting module is electrically connected with the input end of the processor, and the input end of the processor is electrically connected with a display controller in a bidirectional mode. The ultrasonic signal distance measurement device has the advantages of being capable of adaptively amplifying by performing distance measurement processing through the data conversion module by the ultrasonic transmitting module and the ultrasonic receiving module and performing adaptive adjustment and amplification through the adaptive adjustment system by the processor, and solves the problems that in the existing ultrasonic signal distance measurement process, the signal power of ultrasonic waves is fixedly set, adaptive adjustment cannot be performed, signals are weak easily, and the detection effect is influenced.
Description
Technical Field
The invention relates to the technical field of ultrasonic signal adjustment, in particular to an adjustment system and an adjustment method for ultrasonic signal adaptive amplification.
Background
When the ultrasonic wave is a mechanical wave with an extremely short wavelength, the ultrasonic wave is usually used for distance measurement processing during distance measurement, but in the existing ultrasonic signal distance measurement process, the signal power of the ultrasonic wave is fixed, self-adaptive adjustment cannot be performed, the signal is weak, and the detection effect is affected.
Disclosure of Invention
In order to solve the problems in the background art, the present invention provides an adjustment system for adaptive amplification of an ultrasonic signal and an adjustment method thereof, which have the advantage of adaptive amplification, and solve the problems that in the conventional ultrasonic signal ranging process, the signal power of ultrasonic waves is fixed, adaptive adjustment cannot be performed, signals are weak, and the detection effect is affected.
In order to achieve the purpose, the invention provides the following technical scheme: an ultrasonic signal adaptive amplification adjusting system and an adjusting method thereof comprise a processor, wherein the input end of the processor is electrically connected with an ultrasonic receiving module, the output end of the processor is electrically connected with an ultrasonic transmitting module, the output end of the ultrasonic transmitting module is electrically connected with an ultrasonic detecting module, the output end of the ultrasonic detecting module is electrically connected with the input end of the processor, the input end of the processor is bidirectionally electrically connected with a display controller, the input end of the processor is electrically connected with a data storage module, the input end of the processor is bidirectionally electrically connected with a data conversion module, and the input end of the processor is bidirectionally electrically connected with an adaptive adjusting system;
the self-adaptive adjusting system comprises a signal detection and comparison module, wherein the input end of the signal detection and comparison module is electrically connected with a data setting unit in a bidirectional mode, the data setting unit comprises an upper limit setting module and a lower limit setting module, the output end of the signal detection and comparison module is electrically connected with a signal adjusting unit, the signal adjusting unit comprises an ultrasonic power amplification module and an automatic power control module, and the output end of the signal adjusting unit is electrically connected with the input end of an ultrasonic emission module.
Preferably, the input end of the processor is electrically connected with a first remote communication module in a bidirectional mode, the input end of the first remote communication module is electrically connected with a second remote communication module in a bidirectional mode, and the input end of the second remote communication module is electrically connected with a control center in a bidirectional mode.
Preferably, the input end of the data storage module is electrically connected with the operation recording module in a bidirectional way.
Preferably, the input end of the processor is electrically connected with a fault positioning module in a bidirectional way.
Preferably, the input end of the display controller is electrically connected with an encryption and decryption module in a bidirectional way.
Preferably, the input end of the operation recording module is electrically connected with a cloud storage platform in a bidirectional manner.
Preferably, the display controller is a waterproof touch screen, and the output end of the display controller is electrically connected with a warning module.
Preferably, the method comprises the following steps:
s1: firstly, an ultrasonic signal is sent out through an ultrasonic transmitting module, the ultrasonic signal is reflected after being contacted with an object, an ultrasonic receiving module receives the ultrasonic signal, a data conversion module converts and measures distance of data, a display controller displays the data, and then S2 is executed;
s2: the processor sends the received ultrasonic signal data to the signal detection and comparison module, the signal detection and comparison module detects the size of the ultrasonic signal through the upper limit setting module and the lower limit setting module, when the ultrasonic signal is large, the distance measurement is normally used, and when the ultrasonic signal is small, S3 is executed;
s3: the signal detection and comparison module starts the ultrasonic transmitting module through the ultrasonic power amplification module to amplify signals sent by the ultrasonic transmitting module, the signal detection and comparison module continuously detects received signals, and when the size of the continuously received signals reaches a proper range and is close to the size of the signals, the automatic power control module automatically controls the ultrasonic transmitting module through the ultrasonic power amplification module to perform self-adaptive amplification signal processing.
Compared with the prior art, the invention has the following beneficial effects:
1. the ultrasonic signal distance measurement device has the advantages of being capable of adaptively amplifying by performing distance measurement processing through the data conversion module by the ultrasonic transmitting module and the ultrasonic receiving module and performing adaptive adjustment and amplification through the adaptive adjustment system by the processor, and solves the problems that in the existing ultrasonic signal distance measurement process, the signal power of ultrasonic waves is fixedly set, adaptive adjustment cannot be performed, signals are weak easily, and the detection effect is influenced.
2. According to the invention, the program communication module I and the remote communication module II are arranged, so that a user can conveniently watch data remotely, and the user can conveniently carry out operation processing.
3. According to the invention, the operation recording module is arranged, so that the operation flow of the user can be recorded and stored, and the user can call out and observe the operation data conveniently.
4. According to the invention, the fault location can be located by arranging the fault location module, so that a user can conveniently know and overhaul the fault location.
5. According to the invention, the encryption and decryption module is arranged, so that the display controller can be encrypted, and the phenomenon that non-working personnel operate the display controller is avoided.
6. According to the invention, the cloud storage platform is arranged, so that data can be backed up and stored, and the phenomenon of data loss caused by damage of the data storage module is avoided.
7. According to the invention, by arranging the warning module, a user can be prompted when the element fails, so that the user can conveniently and quickly know the failure condition.
Drawings
FIG. 1 is a system diagram of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides an adjustment system for adaptive amplification of ultrasonic signals and an adjustment method thereof, including a processor, an input end of the processor is electrically connected to an ultrasonic receiving module, an output end of the processor is electrically connected to an ultrasonic transmitting module, an output end of the ultrasonic transmitting module is electrically connected to an ultrasonic detecting module, an output end of the ultrasonic detecting module is electrically connected to an input end of the processor, an input end of the processor is electrically connected to a display controller in a bidirectional manner, an input end of the processor is electrically connected to a data storage module, an input end of the processor is electrically connected to a data conversion module in a bidirectional manner, and an input end of the processor is electrically connected to an adaptive adjustment system in a bidirectional manner;
the self-adaptive adjusting system comprises a signal detection and comparison module, wherein the input end of the signal detection and comparison module is electrically connected with a data setting unit in a bidirectional mode, the data setting unit comprises an upper limit setting module and a lower limit setting module, the output end of the signal detection and comparison module is electrically connected with a signal adjusting unit, the signal adjusting unit comprises an ultrasonic power amplification module and an automatic power control module, and the output end of the signal adjusting unit is electrically connected with the input end of an ultrasonic emission module.
Referring to fig. 1, the input end of the processor is electrically connected with a first remote communication module in a bidirectional manner, the input end of the first remote communication module is electrically connected with a second remote communication module in a bidirectional manner, and the input end of the second remote communication module is electrically connected with a control center in a bidirectional manner.
As a technical optimization scheme of the invention, the program communication module I and the remote communication module II are arranged, so that a user can conveniently watch data remotely, and the user can conveniently perform operation processing.
Referring to fig. 1, the input terminal of the data storage module is electrically connected to the operation recording module in both directions.
As a technical optimization scheme of the invention, the operation recording module is arranged, so that the operation flow of the user can be recorded and stored, and the user can call out and observe the operation data conveniently.
Referring to fig. 1, the input of the processor is electrically connected in both directions to a fault locating module.
As a technical optimization scheme of the invention, the fault location can be located by arranging the fault location module, so that a user can conveniently know and overhaul the fault location.
Referring to fig. 1, the input terminal of the display controller is electrically connected with an encryption/decryption module in a bidirectional manner.
As a technical optimization scheme of the invention, the display controller can be encrypted by arranging the encryption and decryption module, so that the phenomenon that non-working personnel operate the display controller is avoided.
Referring to fig. 1, the input end of the operation recording module is electrically connected to the cloud storage platform in a bidirectional manner.
As a technical optimization scheme of the invention, the cloud storage platform is arranged, so that data can be backed up and stored, and the phenomenon of data loss caused by damage of the data storage module is avoided.
Referring to fig. 1, the display controller is a waterproof touch screen, and an output end of the display controller is electrically connected to a warning module.
As a technical optimization scheme of the invention, the warning module is arranged, so that a user can be prompted when an element fails, and the user can conveniently and quickly know the failure condition.
Referring to fig. 1, the method comprises the following steps:
s1: firstly, an ultrasonic signal is sent out through an ultrasonic transmitting module, the ultrasonic signal is reflected after being contacted with an object, an ultrasonic receiving module receives the ultrasonic signal, a data conversion module converts and measures distance of data, a display controller displays the data, and then S2 is executed;
s2: the processor sends the received ultrasonic signal data to the signal detection and comparison module, the signal detection and comparison module detects the size of the ultrasonic signal through the upper limit setting module and the lower limit setting module, when the ultrasonic signal is large, the distance measurement is normally used, and when the ultrasonic signal is small, S3 is executed;
s3: the signal detection and comparison module starts the ultrasonic transmitting module through the ultrasonic power amplification module to amplify signals sent by the ultrasonic transmitting module, the signal detection and comparison module continuously detects received signals, and when the size of the continuously received signals reaches a proper range and is close to the size of the signals, the automatic power control module automatically controls the ultrasonic transmitting module through the ultrasonic power amplification module to perform self-adaptive amplification signal processing.
The working principle and the using process of the invention are as follows: when the ultrasonic signal detection and comparison device is used, a user firstly sends an ultrasonic signal through the ultrasonic emission module, the ultrasonic signal is reflected after being contacted with an object, the ultrasonic receiving module receives the ultrasonic signal, the data conversion module converts and measures the distance of the data, the display controller displays the data, the processor sends the received ultrasonic signal data to the signal detection and comparison module, the signal detection and comparison module detects the size of the ultrasonic signal through the upper limit setting module and the lower limit setting module, when the ultrasonic signal is larger, the distance measurement is normally used, and when the ultrasonic signal is smaller, the signal detection and comparison module starts the ultrasonic emission module through the ultrasonic power amplification module to amplify the signal sent by the ultrasonic emission module, the signal detection and comparison module continuously detects the received signal, and when the size of the continuously received signal reaches a proper range, and when the signal size is close, the power automatic control module automatically controls the ultrasonic transmitting module through the ultrasonic power amplifying module to perform self-adaptive adjustment, so that the effect of self-adaptive amplification is achieved.
In summary, the following steps: the adjusting system and the adjusting method for the ultrasonic signal adaptive amplification have the advantages that the ultrasonic transmitting module and the ultrasonic receiving module perform distance measurement processing through the data conversion module, and then the processor performs adaptive adjustment amplification on the ultrasonic signal through the adaptive adjustment system, so that the adjusting system and the adjusting method have the advantage of adaptive amplification, and solve the problems that in the existing ultrasonic signal distance measurement process, the signal power of ultrasonic waves is fixedly set, adaptive adjustment cannot be performed, the signal is weak, and the detection effect is influenced.
It is noted that, herein, relational terms such as first and second, and the like may be 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.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An adjustment system for adaptive amplification of ultrasonic signals, comprising a processor, characterized in that: the input end of the processor is electrically connected with an ultrasonic receiving module, the output end of the processor is electrically connected with an ultrasonic transmitting module, the output end of the ultrasonic transmitting module is electrically connected with an ultrasonic detecting module, the output end of the ultrasonic detecting module is electrically connected with the input end of the processor, the input end of the processor is electrically connected with a display controller in a bidirectional mode, the input end of the processor is electrically connected with a data storage module, the input end of the processor is electrically connected with a data conversion module in a bidirectional mode, and the input end of the processor is electrically connected with a self-adaptive adjusting system in a bidirectional mode;
the self-adaptive adjusting system comprises a signal detection and comparison module, wherein the input end of the signal detection and comparison module is electrically connected with a data setting unit in a bidirectional mode, the data setting unit comprises an upper limit setting module and a lower limit setting module, the output end of the signal detection and comparison module is electrically connected with a signal adjusting unit, the signal adjusting unit comprises an ultrasonic power amplification module and an automatic power control module, and the output end of the signal adjusting unit is electrically connected with the input end of an ultrasonic emission module.
2. The system for adjusting the adaptive amplification of ultrasonic signals according to claim 1, wherein: the input end of the processor is electrically connected with a first remote communication module in a bidirectional mode, the input end of the first remote communication module is electrically connected with a second remote communication module in a bidirectional mode, and the input end of the second remote communication module is electrically connected with a control center in a bidirectional mode.
3. The system for adjusting the adaptive amplification of ultrasonic signals according to claim 1, wherein: and the input end of the data storage module is electrically connected with an operation recording module in a bidirectional way.
4. The system for adjusting the adaptive amplification of ultrasonic signals according to claim 1, wherein: and the input end of the processor is electrically connected with a fault positioning module in a bidirectional way.
5. The system for adjusting the adaptive amplification of ultrasonic signals according to claim 1, wherein: and the input end of the display controller is electrically connected with an encryption and decryption module in a bidirectional way.
6. The system of claim 3, wherein the ultrasonic signal adaptive amplification adjustment system comprises: and the input end of the operation recording module is electrically connected with a cloud storage platform in a bidirectional way.
7. The system for adjusting the adaptive amplification of ultrasonic signals according to claim 1, wherein: the display controller is a waterproof touch screen, and the output end of the display controller is electrically connected with a warning module.
8. The method for adjusting the ultrasonic signal adaptive amplification adjusting system according to claim 1, wherein: the method comprises the following steps:
s1: firstly, an ultrasonic signal is sent out through an ultrasonic transmitting module, the ultrasonic signal is reflected after being contacted with an object, an ultrasonic receiving module receives the ultrasonic signal, a data conversion module converts and measures distance of data, a display controller displays the data, and then S2 is executed;
s2: the processor sends the received ultrasonic signal data to the signal detection and comparison module, the signal detection and comparison module detects the size of the ultrasonic signal through the upper limit setting module and the lower limit setting module, when the ultrasonic signal is large, the distance measurement is normally used, and when the ultrasonic signal is small, S3 is executed;
s3: the signal detection and comparison module starts the ultrasonic transmitting module through the ultrasonic power amplification module to amplify signals sent by the ultrasonic transmitting module, the signal detection and comparison module continuously detects received signals, and when the size of the continuously received signals reaches a proper range and is close to the size of the signals, the automatic power control module automatically controls the ultrasonic transmitting module through the ultrasonic power amplification module to perform self-adaptive amplification signal processing.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601299A (en) * | 2004-10-25 | 2005-03-30 | 北京科技大学 | Low noise echo ranging system based switching network |
| CN103454643A (en) * | 2013-09-10 | 2013-12-18 | 浙江工商大学 | Method for accurately measuring constant sound pressure FSK ultrasonic wave transition time |
| CN203551042U (en) * | 2013-10-11 | 2014-04-16 | 中国船舶重工集团公司第七一五研究所 | High-precision audio frequency material level instrument applicable to dust environment |
| US20180376235A1 (en) * | 2017-06-23 | 2018-12-27 | Energous Corporation | Systems, Methods, and Devices for Utilizing a Wire of a Sound-Producing Device as an Antenna for Receipt of Wirelessly Delivered Power |
| US20190187261A1 (en) * | 2017-12-15 | 2019-06-20 | Cirrus Logic International Semiconductor Ltd. | Proximity sensing |
| CN113917397A (en) * | 2021-09-17 | 2022-01-11 | 深圳市睿联技术股份有限公司 | Ranging method, ranging device, ranging system and computer-readable storage medium |
-
2022
- 2022-02-10 CN CN202210123722.0A patent/CN114527454A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601299A (en) * | 2004-10-25 | 2005-03-30 | 北京科技大学 | Low noise echo ranging system based switching network |
| CN103454643A (en) * | 2013-09-10 | 2013-12-18 | 浙江工商大学 | Method for accurately measuring constant sound pressure FSK ultrasonic wave transition time |
| CN203551042U (en) * | 2013-10-11 | 2014-04-16 | 中国船舶重工集团公司第七一五研究所 | High-precision audio frequency material level instrument applicable to dust environment |
| US20180376235A1 (en) * | 2017-06-23 | 2018-12-27 | Energous Corporation | Systems, Methods, and Devices for Utilizing a Wire of a Sound-Producing Device as an Antenna for Receipt of Wirelessly Delivered Power |
| US20190187261A1 (en) * | 2017-12-15 | 2019-06-20 | Cirrus Logic International Semiconductor Ltd. | Proximity sensing |
| CN113917397A (en) * | 2021-09-17 | 2022-01-11 | 深圳市睿联技术股份有限公司 | Ranging method, ranging device, ranging system and computer-readable storage medium |
Non-Patent Citations (2)
| Title |
|---|
| 周聪敏: "基于STM32的功率自适应FSK高精度超声波测距系统的设计", 中国优秀硕士学位论文全文数据库工程科技Ⅱ辑, 15 April 2016 (2016-04-15), pages 028 - 56 * |
| 朱维杰: "基于超声波测距的自适应倒车雷达设计", 汽车电器, no. 4, 1 April 2009 (2009-04-01), pages 15 - 17 * |
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