CN109407099A - A kind of ultrasonic ranging method and its system - Google Patents
A kind of ultrasonic ranging method and its system Download PDFInfo
- Publication number
- CN109407099A CN109407099A CN201811024140.7A CN201811024140A CN109407099A CN 109407099 A CN109407099 A CN 109407099A CN 201811024140 A CN201811024140 A CN 201811024140A CN 109407099 A CN109407099 A CN 109407099A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic wave
- value
- unit
- temperature
- ultrasonic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 8
- 238000012935 Averaging Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a kind of ultrasonic ranging method and its system, method includes: the table of comparisons for relationship between velocity of sound and temperature in air of establishing；It establishes ultrasonic wave and issues point and ultrasonic wave receiving point, the ultrasonic wave issues point and the spacing of ultrasonic wave receiving point is less than 5cm；At the time of record issues ultrasonic wave toward a testee from ultrasonic wave sending point, moment value t0 is obtained；At the time of record receives ultrasonic wave reflected through testee from the ultrasonic wave receiving point, moment value t1 is obtained；The temperature value of present air is obtained, and obtains corresponding velocity of sound value V from the table of comparisons according to the temperature value of present air；Calculation formula S=0.5V (t1-t0) obtains distance value S to be measured.System includes: ultrasonic wave transmission unit, ultrasonic wave receiving unit, storage element, recording unit, temperature measurement unit, searching unit, computing unit.The invention may make that ultrasonic distance measurement is more accurate, can be used in ultrasonic distance measurement field.
Description
Technical field
The invention is related to ultrasonic measuring distance technology field, in particular to a kind of ultrasonic ranging method and its system.
Background technique
Ultrasonic wave can also can be propagated in a metal, it might even be possible in Propagations such as solid, liquid, gas bodies in organism
Middle propagation；Ultrasonic wave can propagate very strong energy；The spies such as reflection, refraction, interference, resonance and superposition with mechanical wave
Property；For ultrasonic wave since vibration frequency is very high, velocity of wave is slower, and wavelength is shorter, and resolution ratio can be improved in ranging in this way.
The method of most common supersonic sounding is ES Echo sounding, and ultrasonic transmitter emits ultrasonic wave to a direction,
Counter starts timing while emission time, and ultrasonic wave is propagated in air, encounters obstacle object plane on the way and stops just immediately
It reflects, ultrasonic receiver receives the ultrasonic wave being reflected back and just stops timing immediately.
But existing method do not consider that the velocity of sound of ultrasonic wave is related with temperature, calculate apart from when use
The usually theoretical value of sound spread speed in air, i.e. 340m/s；Moreover, not accounting for therefore, existing ultrasound yet
Wave distance measuring method and its system obtain distance, and often accuracy is not high.
Summary of the invention
It is of the existing technology in order to solve the problems, such as, the present invention propose a kind of ultrasonic ranging method that accuracy is high and its
System.
The solution that the present invention solves its technical problem is: on the one hand, a kind of ultrasonic ranging method, comprising:
Step 1, the table of comparisons for establishing relationship between velocity of sound and temperature in air；
Step 2 establishes ultrasonic wave sending point and ultrasonic wave receiving point, and the ultrasonic wave issues point and ultrasonic wave receiving point
Spacing is less than 5cm；
At the time of step 3, record issue ultrasonic wave toward a testee from ultrasonic wave sending point, moment value t0 is obtained；
At the time of step 4, record receive ultrasonic wave reflected through testee from the ultrasonic wave receiving point, obtain
Moment value t1；
Step 5, the temperature value for obtaining present air, and obtained from the table of comparisons according to the temperature value of present air pair
The velocity of sound value V answered；
Step 6, calculation formula S=0.5V (t1-t0), obtain distance value S to be measured.
Further, after step 6 further include:
Step 7 is modified the distance value S；
Wherein, include: to the distance value S method being modified
Step 7.1, measurement ultrasonic wave issue spacing of the point with ultrasonic wave receiving point, obtain distance values D；
Step 7.2, calculation formulaObtain revised distance value St.
Further, in step 4, the acquisition methods of the temperature value of the present air include: to the temperature value in air
It takes multiple measurements, is averaging, obtains the temperature value of present air.
On the other hand, a kind of ultrasonic ranging system, comprising: ultrasonic wave transmission unit, ultrasonic wave receiving unit, storage are single
Member, recording unit, temperature measurement unit, searching unit, computing unit；
The storage element is used to store the relationship table of the velocity of sound in air pre-established and temperature；
The recording unit includes: value at the time of ultrasonic wave transmission unit issues ultrasonic wave toward testee for recording
T0, value t1 at the time of ultrasonic wave receiving unit receives ultrasonic wave reflected through testee；
The temperature measurement unit is used to measure the temperature value of present air；
The searching unit is used to search corresponding velocity of sound from the table of comparisons according to the temperature value of the present air
Value V；
The computing unit is for including: to obtain distance value S to be measured according to formula S=0.5V (t1-t0), according to formulaObtain revised distance value St；Wherein, D is that the ultrasonic wave transmission unit and ultrasonic wave receive list
Distance values between member.
The beneficial effects of the present invention are: on the one hand, by establishing the table of comparisons of relationship between velocity of sound and temperature in air,
And by obtaining the temperature value of present air before calculating testing distance, to obtain in present air, the tool of sound transmission
Body speed is calculated using this specific speed as velocity of sound value, rather than is calculated using theoretical value, so that calculating knot
Fruit is more accurate.It can be used in ultrasonic distance measurement field.
On the other hand, a kind of ultrasonic ranging system, the system by ultrasonic wave transmission unit, ultrasonic wave receiving unit,
Storage element, recording unit, temperature measurement unit, searching unit, computing unit can be used so that ultrasonic distance measurement is more accurate
In ultrasonic distance measurement field.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs
Scheme and attached drawing.
Fig. 1 is the step flow chart of the invention method.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, be previously mentioned in text
All connection/connection relationships not singly refer to that component directly connects, and referring to can be added deduct according to specific implementation situation by adding
Few couple auxiliary, Lai Zucheng more preferably coupling structure.Each technical characteristic in the invention, in not conflicting conflict
Under the premise of can be with combination of interactions.
Embodiment 1, with reference to Fig. 1, a kind of ultrasonic ranging method, comprising:
Step 1, the table of comparisons for establishing relationship between velocity of sound and temperature in air；
Specifically, in confined space at one atm, using temperature as independent variable, being led to by sound velocimeter
The temperature value for adjusting the confined space is crossed, obtains spread speed of the sound under corresponding temperature, in air, and by the propagation
Speed and temperature value are recorded as the table of comparisons.
Step 2 establishes ultrasonic wave sending point and ultrasonic wave receiving point, and the ultrasonic wave issues point and ultrasonic wave receiving point
Spacing is less than 5cm；
At the time of step 3, record issue ultrasonic wave toward a testee from ultrasonic wave sending point, moment value t0 is obtained；
At the time of step 4, record receive ultrasonic wave reflected through testee from the ultrasonic wave receiving point, obtain
Moment value t1；
Step 5, the temperature value for obtaining present air, and obtained from the table of comparisons according to the temperature value of present air pair
The velocity of sound value V answered；
Specifically, the acquisition methods of the temperature value of the present air include: repeatedly to be surveyed to the temperature value in air
Amount is averaging, obtains the temperature value of present air；
Step 6, calculation formula S=0.5V (t1-t0), obtain distance value S to be measured.
By establishing the table of comparisons of relationship between velocity of sound and temperature in air, and by obtaining before calculating testing distance
The temperature value of present air is taken, to obtain in present air, the specific speed of sound transmission, is made using this specific speed
It is calculated for velocity of sound value, rather than is calculated using theoretical value, so that calculated result is more accurate.
As advanced optimizing for above embodiment, after step 6 further include: step 7 carries out the distance value S
Amendment.
Wherein, include: to the distance value S method being modified
Step 7.1, measurement ultrasonic wave issue spacing of the point with ultrasonic wave receiving point, obtain distance values D；
Step 7.2, calculation formulaObtain revised distance value St.
Since ultrasonic wave issues point and ultrasonic wave receiving point can not be on the same position, and therefore, it is necessary to pass through triangle
Relationship amendment is because of error brought by spacing between the two.Therefore, point is issued by measurement ultrasonic wave to receive with ultrasonic wave
The spacing of point, obtains distance values D, and pass through formulaObtain revised distance value St.
The invention also provides a kind of ultrasonic ranging system simultaneously, comprising: ultrasonic wave transmission unit, ultrasonic wave receive
Unit, storage element, recording unit, temperature measurement unit, searching unit, computing unit；
The storage element is used to store the relationship table of the velocity of sound in air pre-established and temperature；
It includes: that ultrasonic wave transmission unit is super from ultrasonic wave sending point toward testee sending that the recording unit, which is used to record,
Value t0 at the time of sound wave, ultrasonic wave receiving unit from ultrasonic wave receiving point receive through the reflected ultrasonic wave of testee when
Quarter value t1；
The temperature measurement unit is used to measure the temperature value of present air；
The searching unit is used to search corresponding velocity of sound from the table of comparisons according to the temperature value of the present air
Value V；
The computing unit is for including: to obtain distance value S to be measured according to formula S=0.5V (t1-t0), according to formulaObtain revised distance value St；Wherein, D is that the ultrasonic wave transmission unit and ultrasonic wave receive list
Distance values between member.
Better embodiment of the invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make various equivalent modifications on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (4)
1. a kind of ultrasonic ranging method characterized by comprising
Step 1, the table of comparisons for establishing relationship between velocity of sound and temperature in air；
Step 2 establishes ultrasonic wave sending point and ultrasonic wave receiving point, and the ultrasonic wave issues the spacing of point and ultrasonic wave receiving point
Less than 5cm；
At the time of step 3, record issue ultrasonic wave toward a testee from ultrasonic wave sending point, moment value t0 is obtained；
At the time of step 4, record receive ultrasonic wave reflected through testee from the ultrasonic wave receiving point, the moment is obtained
Value t1；
Step 5, the temperature value for obtaining present air, and obtained from the table of comparisons according to the temperature value of present air corresponding
Velocity of sound value V；
Step 6, calculation formula S=0.5V (t1-t0), obtain distance value S to be measured.
2. a kind of ultrasonic ranging method according to claim 1, which is characterized in that after step 6 further include:
Step 7 is modified the distance value S；
Wherein, include: to the distance value S method being modified
Step 7.1, measurement ultrasonic wave issue spacing of the point with ultrasonic wave receiving point, obtain distance values D；
Step 7.2, calculation formulaObtain revised distance value St.
3. a kind of ultrasonic ranging method according to claim 1, which is characterized in that in step 4, the present air
The acquisition methods of temperature value include: to be taken multiple measurements to the temperature value in air, be averaging, obtain the temperature of present air
Value.
4. a kind of ultrasonic ranging system characterized by comprising ultrasonic wave transmission unit, ultrasonic wave receiving unit, storage are single
Member, recording unit, temperature measurement unit, searching unit, computing unit；
The storage element is used to store the relationship table of the velocity of sound in air pre-established and temperature；
The recording unit includes: value t0 at the time of ultrasonic wave transmission unit issues ultrasonic wave toward testee for recording, and is surpassed
Value t1 at the time of acoustic receiver unit receives ultrasonic wave reflected through testee；
The temperature measurement unit is used to measure the temperature value of present air；
The searching unit is used to search corresponding velocity of sound value V from the table of comparisons according to the temperature value of the present air；
The computing unit is for including: to obtain distance value S to be measured according to formula S=0.5V (t1-t0), according to formulaObtain revised distance value St；Wherein, D is that the ultrasonic wave transmission unit and ultrasonic wave receive list
Distance values between member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811024140.7A CN109407099A (en) | 2018-09-04 | 2018-09-04 | A kind of ultrasonic ranging method and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811024140.7A CN109407099A (en) | 2018-09-04 | 2018-09-04 | A kind of ultrasonic ranging method and its system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109407099A true CN109407099A (en) | 2019-03-01 |
Family
ID=65463785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811024140.7A Pending CN109407099A (en) | 2018-09-04 | 2018-09-04 | A kind of ultrasonic ranging method and its system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109407099A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6279396B1 (en) * | 1998-04-15 | 2001-08-28 | Sony Corporation | Ultrasonic-wave distance measuring method and apparatus of separate transmission and reception type reflection system |
| CN101173986A (en) * | 2006-10-30 | 2008-05-07 | 深圳市诺博特智能科技有限公司 | Ultrasonic distance measuring apparatus without blind zone |
| CN101393686A (en) * | 2008-10-13 | 2009-03-25 | 徐菲 | All-weather vehicle driving safety indication and control system device |
| CN101398977A (en) * | 2008-10-13 | 2009-04-01 | 徐菲 | Electronic wireless traffic information indicating system and device for day and night |
| CN101398978A (en) * | 2008-10-13 | 2009-04-01 | 徐菲 | Dynamic distance detection and information transfer method in running vehicle |
| CN104197873A (en) * | 2014-09-24 | 2014-12-10 | 西安工程大学 | Ultrasonic ranging based multi-split power transmission line icing thickness measurement method and device |
| CN104459705A (en) * | 2014-12-05 | 2015-03-25 | 苏州市欧博锐自动化科技有限公司 | Ultrasonic ranging system with temperature compensation function |
| CN104678398A (en) * | 2015-01-23 | 2015-06-03 | 广州快飞计算机科技有限公司 | Ultrasonic ranging method |
| CN104965205A (en) * | 2015-05-27 | 2015-10-07 | 苏州合欣美电子科技有限公司 | Ultrasonic ranging apparatus based on temperature compensation |
| CN106443645A (en) * | 2016-11-21 | 2017-02-22 | 重庆兆洲科技发展有限公司 | Ultrasonic ranging system, and echo value taking method and apparatus |
| CN107422725A (en) * | 2017-04-22 | 2017-12-01 | 南京阿凡达机器人科技有限公司 | A kind of robotic tracking's method based on sonar |
| CN108279416A (en) * | 2018-01-18 | 2018-07-13 | 安徽英凯环境技术有限公司 | A kind of ultrasonic ranging system and its accurate method for measuring echo arrival time |
-
2018
- 2018-09-04 CN CN201811024140.7A patent/CN109407099A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6279396B1 (en) * | 1998-04-15 | 2001-08-28 | Sony Corporation | Ultrasonic-wave distance measuring method and apparatus of separate transmission and reception type reflection system |
| CN101173986A (en) * | 2006-10-30 | 2008-05-07 | 深圳市诺博特智能科技有限公司 | Ultrasonic distance measuring apparatus without blind zone |
| CN101393686A (en) * | 2008-10-13 | 2009-03-25 | 徐菲 | All-weather vehicle driving safety indication and control system device |
| CN101398977A (en) * | 2008-10-13 | 2009-04-01 | 徐菲 | Electronic wireless traffic information indicating system and device for day and night |
| CN101398978A (en) * | 2008-10-13 | 2009-04-01 | 徐菲 | Dynamic distance detection and information transfer method in running vehicle |
| CN104197873A (en) * | 2014-09-24 | 2014-12-10 | 西安工程大学 | Ultrasonic ranging based multi-split power transmission line icing thickness measurement method and device |
| CN104459705A (en) * | 2014-12-05 | 2015-03-25 | 苏州市欧博锐自动化科技有限公司 | Ultrasonic ranging system with temperature compensation function |
| CN104678398A (en) * | 2015-01-23 | 2015-06-03 | 广州快飞计算机科技有限公司 | Ultrasonic ranging method |
| CN104965205A (en) * | 2015-05-27 | 2015-10-07 | 苏州合欣美电子科技有限公司 | Ultrasonic ranging apparatus based on temperature compensation |
| CN106443645A (en) * | 2016-11-21 | 2017-02-22 | 重庆兆洲科技发展有限公司 | Ultrasonic ranging system, and echo value taking method and apparatus |
| CN107422725A (en) * | 2017-04-22 | 2017-12-01 | 南京阿凡达机器人科技有限公司 | A kind of robotic tracking's method based on sonar |
| CN108279416A (en) * | 2018-01-18 | 2018-07-13 | 安徽英凯环境技术有限公司 | A kind of ultrasonic ranging system and its accurate method for measuring echo arrival time |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100455999C (en) | Device for ultrasonic measuring liquid level and method thereof | |
| US20230273058A1 (en) | Waveguides for non-invasive measurement of flow in a high temperature pipe and apparatuses, systems, and methods of use thereof | |
| US6732595B2 (en) | Method of and system for determining the mass flow rate of a fluid flowing in a conduit | |
| CN106643939B (en) | The method for calculating ultrasonic propagation time for ultrasonic flowmeter | |
| CN108802735A (en) | A kind of submarine target positioning and speed-measuring method and device for unknown velocity of sound environment | |
| CN105066918A (en) | Ultrasonic underwater target thickness measuring system and thickness measuring method | |
| CN105510918A (en) | Actual measurement sound velocity-based ultrasonic distance measuring method and ultrasonic sensor | |
| CN108844613B (en) | High-precision seawater sound velocity measurement method based on optical frequency comb interference | |
| US9618617B2 (en) | Level measurement using correlation between a pair of secondary reference signals | |
| CN101799545A (en) | Ultrasonic based dynamic distance measurement method and system | |
| KR101238387B1 (en) | Towing tank using ultrasonic measurement of ice thickness measurement system and method | |
| CN108363063A (en) | A kind of posture and the parallel multimetering method and apparatus of the self-alignment ultrasound of velocity of wave | |
| CN111157065A (en) | Acoustic time delay measuring method in ultrasonic signal transmission loop of gas ultrasonic flowmeter | |
| CN202066962U (en) | Multifunctional ultrasonic wave measuring instrument | |
| CN103075981A (en) | Ultrasonic thickness measuring method | |
| CN205120208U (en) | High accuracy ultrasonic wave liquid level changer based on two somes method actual measurement velocities of sound | |
| CN205785491U (en) | A kind of Sound speed profile instrument based on TOF technology | |
| CN109407099A (en) | A kind of ultrasonic ranging method and its system | |
| CN202304777U (en) | Workpiece thickness measurement device | |
| CN104272066B (en) | For the method measuring the liquid level of liquid | |
| Dall'Osto et al. | Elliptical acoustic particle motion in underwater waveguides | |
| CN106443646B (en) | A kind of ultrasonic ranging system, echo processing techniques and device | |
| CN209590275U (en) | Pulse type laser range-measurement system | |
| CN111337881B (en) | Underwater target detection method utilizing propeller noise | |
| Soldatov et al. | Ultrasonic level gauge of light oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |