CN103616692A - Portable multifunctional ultrasonic ranging system based on Android mobile terminal - Google Patents
Portable multifunctional ultrasonic ranging system based on Android mobile terminal Download PDFInfo
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- CN103616692A CN103616692A CN201310593752.9A CN201310593752A CN103616692A CN 103616692 A CN103616692 A CN 103616692A CN 201310593752 A CN201310593752 A CN 201310593752A CN 103616692 A CN103616692 A CN 103616692A
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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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- 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
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/101—Particularities of the measurement of distance
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention provides a portable multifunctional ultrasonic ranging system based on an Android mobile terminal. The system is composed of a hardware module and Android application software which conform to AOA (Android Open Accessory) standards. The hardware module is connected to the Android mobile terminal through a USB interface. Ultrasonic ranging is achieved through the hardware module, propagation velocity of known ultrasonic in media is corrected through environmental parameters of temperature, humidity, barometric pressure and the like collected by a sensor, and therefore measurement accuracy in an actual scene is improved. The application software is operated on the Android mobile terminal to intelligently control and display ranging information. By the adoption of the system, intelligent storage, uploading, redundancy elimination, analysis, optimization and real-time display of ranging data and other functions can be achieved. Compared with a traditional ranging instrument, the system has the outstanding advantages of being low in cost, high in intelligent degree and portability, and easy to customize and expand due to the fact that the system combines the hardware module with Android mobile equipment.
Description
Technical field
Range finding application software, especially hardware that this practicality invention is novel relates to a kind of ultrasonic ranging hardware module based on Arduino Mega ADK and a Android mobile terminal have gathered environmental parameter the result of finding range have been corrected, and have high measuring accuracy.In addition, by with being connected of mobile terminal, application software can be processed the graphical demonstration of ranging data and intellectual analysis.
Background technology
At present distance measuring method mainly contains three kinds of microwave radar range finding, laser ranging and ultrasonic rangings.First two method is because the large cost height of technical difficulty is generally only for war industry, and ultrasonic ranging is relatively low and with low cost due to its technical difficulty, not only can be used for commercial measurement field, also can be suitable for civilian popularization.Because ultrasound wave directive property is strong, energy consumption is slow, distant at Propagation, thereby ultrasound wave is applicable to the measurement of distance very much, and it is not affected by radiance, measurand color etc., for measured object in dark, have under dust, smog, electromagnetic interference (EMI), the rugged environment such as poisonous and have certain adaptive faculty.In addition, ultrasound wave on easy to detect, has rapid, easy to operate, the simple feature of computing of range finding, also easily accomplishes real-time control; Aspect measuring accuracy, also can reach the practical requirement of industry.
Now on market, although had a variety of based on hyperacoustic stadimeter, but it is heavy that multi-functional stadimeter generally seems, carry inconvenient and expensive, and not only small and exquisite portable stadimeter is in function but also deficienter, exists without analyzing and processing ability, be difficult for simple unfriendly etc. the deficiency of expansion, operation interface.In view of above situation, consider intelligent mobile terminal in recent years, universal based on Android system mobile phone particularly, the present invention has designed and has followed Google AOA agreement, be connected on the data acquisition equipment on mobile terminal outward, and the multifunction ultrasonic range measurement system that the functions such as data processing and displaying complete on mobile terminal has made up the deficiency of conventional ultrasonic wave range measurement system, not only had multi-functional but also there is good portability.In addition, software section is the platform development based on Android system, so its expansibility, easily upgradability, dirigibility are stronger.
Summary of the invention
The present invention is a kind of portable multi-function ultrasonic ranging system based on Android mobile terminal.This system is divided into two large divisions, a part is to be external to the hardware module that Android mobile terminal is realized ultrasonic acquisition, another part operates in the data analyzing and processing software system on Android mobile terminal, and the major function of realization comprises real time data acquisition, data intelligence storage, data redundancy deletion, data analysis and processing, data real-time exhibition etc.Wherein the Real-time Collection of data not only gathers the distance survey in real time, and the important parameters such as temperature during record range finding, humidity, atmospheric pressure, also by calling the geography information such as longitude and latitude of the GPS positioning service of mobile device while gathering range finding.LCDs and charactron that the present invention has abandoned traditional range measurement system show, surveyed data are all shown by the screen intellectuality of mobile terminal, simultaneously distance-measuring equipment microminiaturization is afterwards just as an accessory of mobile terminal, makes that range measurement system is smaller and more exquisite, light, cost also greatly reduces than traditional multi-functional distance-measuring equipment.In addition, because data processing software is based on Android operating system, can design more friendly and wieldy display interface, numerous data analysis functions also can be realized easily on mobile terminal, Function Extension and the upgrading of system are guaranteed, and these advantages are that traditional range measurement system institute is very inaccessible.Finally, the present invention also improves the precision of measurement from two aspects: utilize on the one hand the environmental parameters such as humiture that sensor gathers, atmospheric pressure, proofread and correct the velocity of propagation of ultrasound wave in medium, improve measuring accuracy; By software systems, the heavily processing of measurement data is improved to measuring accuracy on the other hand.
Before a kind of theoretical foundation of method be ultrasound wave in the restriction relation of the speed of Propagation and temperature, humidity, atmospheric pressure:
1. ultrasound wave is at air kind velocity of propagation C
g=(331.4+0.61 * T) * (1+0.32*Pw/P)
1/2.(T is environment temperature; Pw is the partial pressure of water in air steam, and P is standard atmospheric pressure);
2. International Standard Atemosphere ISA regulation: in troposphere (0～11000m), the temperature on sea level is 15 ℃, air pressure 101325Pa, and pressure P=ρ gh in atmosphere, atmospheric density 1.226Kg/m
3, obtain the every rising 1000m of height above sea level, 6.5 ℃ of mercury droppeds.
The g---9.8N/kg(normal conditions g=10N/kg that goes down)
The h---degree of depth (m rice)
A kind of rear method is mainly the N (x of distance by Quick Measurement same position barrier
1, x
2... x
n), then by averaged, improve the measuring accuracy of this position:
Accompanying drawing explanation
Fig. 1 is the Organization Chart of the portable multi-function ultrasonic ranging system based on Android mobile terminal of the present invention.
Fig. 2 is the application software organization chart based on data processing and analysis on Android mobile terminal of the present invention.
Fig. 3 is the hardware module theory diagram of ultrasonic data acquisition of the present invention.
Fig. 4 is system flowchart of the present invention.
Fig. 5 is the main flow chart of ultrasonic ranging hardware module.
Embodiment
The present invention is a kind of portable multi-function ultrasonic ranging system based on Android mobile terminal, below in conjunction with accompanying drawing, embodiment is described.
In Fig. 1, the Organization Chart of the portable multi-function ultrasonic ranging system based on Android mobile terminal comprises real time data acquisition, data intelligence storage, data redundancy deletion, data analysis and processing, five functional modules of data real-time exhibition.
Real time data acquisition module mainly comprises the Atmega2560 control panel based on AOA protocol interface, on control panel, has the devices such as ultrasonic detector, temperature sensor, humidity sensor, baroceptor and a GPS locating module on mobile terminal.By these equipment, gather the distance between ultrasonic probe and barrier, the temperature of environment, humidity, and when range finding range finding person place the information such as geographic position, time.Atmega2560 control panel is directly linked on Android mobile terminal by usb data line or USB plug.
Data intelligence memory module and following module all realize by software on mobile terminal, this module mainly realizes and receives the data that transmit with storage of collected module, and these data comprise the data of the various ways such as time, longitude and latitude, humiture, distance; Also can data file be uploaded to related personnel by functions such as mail services.
Data redundancy removing module Main Function is the practical situations according to user, deletes in time some redundant informations or historical data is moved on server or other memory devices.Popular embedded light database---SQLite is used in the storage of data, its whole database (definition, table, index and data itself) is all stored in a single file, and SQLite has portable good, easily uses, very little, efficient and reliable characteristic.
Data analysis and processing module are mainly that some actual demands of the data based user to collecting are analyzed and processed.Analyze and mainly comprise certain some trend were and analyses historical and current measurement data, and certain some data is averaged, and further improve precision etc. by the analysis of historical data.
Data real-time exhibition module is presented at the result of data analysis and processing module on mobile terminal in a variety of forms, is convenient to watching and understanding of user's visual pattern.
At Fig. 2, in the organization chart based on the application software of data processing and analysis on Android mobile terminal, the major functions such as range finding that application software has, inquiry, data analysis have been shown, and the every subfunction realizing below the function of tonic chord, the thought of modularization programming has been used in the realization of each function of system.
In Fig. 3, shown the hardware module principle of ultrasonic data acquisition of the present invention.Range finding adopts transit time detection method, detects the ultrasound wave sending from ultrasonic transmitter, through the time that propagates into receiver of gas medium, i.e. transit time.The velocity of sound in transit time and medium multiplies each other, and is exactly the distance of sonic transmissions.Consider actual conditions, adopt strange land pulse reflection to find range, half that actual range is ultrasonic ranging.In addition, because the velocity of propagation of ultrasound wave in medium is subject to the impact of the environmental factors such as temperature, humidity, atmospheric pressure, so utilize sensor to gather environmental parameter, proofread and correct the velocity of propagation of ultrasound wave in medium, thereby improve measuring accuracy.
In Fig. 4, Fig. 5, the workflow of having shown whole ultrasonic ranging system, left-hand component is the process flow diagram of the application software based on Android mobile terminal, and right-hand component is the main flow chart of ultrasonic ranging hardware module, and two figure have also shown data flow when system is specifically moved.Reciprocal process between software and hardware is: first, ultrasonic listening module is communicated with mobile device by USB interface, and range finder module powers up startup after being detected and accessing successfully.Then, start software App, user finds range according to required selection, sends range finder module order; Data collector image data, and be stored in the SQLite database of software App.The data that wherein gather mainly comprise distance, temperature, humidity, atmospheric value, range finding time and geographical location information etc.Measurement task finishes rear user can carry out selectable Data Management Analysis (sometime searching of measurement data, the variation of a certain section of time measurement data and analysis operation etc.).Finally, by the result of display data analysis timely and processing module.
In sum, the present invention can be external to Android mobile terminal to realize the hardware module of ultrasonic acquisition and operate in combining closely of data analyzing and processing software system on Android mobile terminal.Realized detect data intelligent storage, upload, the function such as redundancy elimination, analysis optimization, real-time exhibition.When system realizes, write a database adapter, this adapter has encapsulated the multiple method of operating of SQLite database, and user's operation and background service are realized the operation to database by calling it.Background service aspect, concentrates on effectively and the deal with data of access data, simple requirements, multi-form interface data are shown automatically.User's operating aspect, implements user's independence, and good multi-functional selectable option of operation is independently processed and shows for user.
Claims (6)
- XXXX. the portable multi-function ultrasonic ranging system based on Android mobile terminal, comprising following the data collection hardware module of Google AOA agreement and utilizing based on Google ADK exploitation and operate in the application software that the intelligent data on Android mobile terminal is processed and analyzed, hardware module connects Android mobile terminal by USB interface.According to the above-mentioned portable multi-function ultrasonic ranging system based on Android mobile terminal, its feature comprises:One, real time data acquisition module, comprise ultrasonic detector, Temperature Humidity Sensor and Android mobile terminal, be responsible for gathering distance, temperature, humidity, the atmospheric data between ultrasonic probe and barrier, and the geographical location information that gathers mobile terminal GPS positioning service.Two, data intelligence storage and upper transmission module, be responsible for the data that real-time storage gathers, and can data file be transmitted by mail service etc.Three, data redundancy removing module, is responsible for deleting in time some redundant informations or historical data being moved on server or other memory devices.Four, data analysis and processing module, be responsible for the Various types of data of analyzing stored in SQLite database.Five, data real-time exhibition module, carries out visual demonstration directly perceived to the result of data analysis processing module.
- 1. the feature of data acquisition module block assembly comprises the data collectors such as hardware controls plate based on AOA consensus standard, ultrasonic detector, temperature sensor, humidity sensor, baroceptor, and the GPS positioning function of calling Android system is to obtain geographical location information at that time.
- 2. the feature of data intelligence storage and upper transmission module comprises light-duty relevant database a---SQLite who increases income.The data that collect for data collector, the unified ACID that adopts stores; And by functions such as mail services, data file is uploaded to related personnel.
- 3. data redundancy removing module is characterised in that and deletes in time some redundant informations or historical data is moved on server or other memory devices, improves data storage quality, and optimization data storage organization reaches efficient and saves storage space.
- 4. the feature of data analysis and processing module comprises that the data to collecting carry out statistical study and computing.Through to a certain class historical data or current measurement data analysis, can judge in advance for its variation tendency; And to operations such as a certain class data averaged, can propose high-precision processing etc.
- 5. data real-time exhibition module feature is that the data of collection and analysis result thereof are carried out to effectively demonstration directly perceived on mobile terminal.
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Cited By (7)
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| CN104461534A (en) * | 2014-12-05 | 2015-03-25 | 华东交通大学 | Android mobile terminal-based portable intelligent ultrasonic flaw detection system |
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| CN106303214A (en) * | 2016-07-25 | 2017-01-04 | 维沃移动通信有限公司 | A kind of focusing method and device |
| CN106291522A (en) * | 2016-07-27 | 2017-01-04 | 南京信息工程大学 | A kind of supersonic range finder and distance-finding method |
| CN109709568A (en) * | 2018-12-27 | 2019-05-03 | 钟祥博谦信息科技有限公司 | A kind of range-measurement infrared system and ranging data processing method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266618A (en) * | 2014-09-28 | 2015-01-07 | 山东中科普锐检测技术有限公司 | Ultrasonic thickness meter based on mobile display terminal |
| CN104461534A (en) * | 2014-12-05 | 2015-03-25 | 华东交通大学 | Android mobile terminal-based portable intelligent ultrasonic flaw detection system |
| CN105187082A (en) * | 2015-08-18 | 2015-12-23 | 徐小凤 | Mobile terminal |
| CN105699962A (en) * | 2016-02-29 | 2016-06-22 | 华为技术有限公司 | Distance measurement method and device |
| CN106303214A (en) * | 2016-07-25 | 2017-01-04 | 维沃移动通信有限公司 | A kind of focusing method and device |
| CN106303214B (en) * | 2016-07-25 | 2019-09-27 | 维沃移动通信有限公司 | A kind of focusing method and device |
| CN106291522A (en) * | 2016-07-27 | 2017-01-04 | 南京信息工程大学 | A kind of supersonic range finder and distance-finding method |
| CN106291522B (en) * | 2016-07-27 | 2018-09-14 | 南京信息工程大学 | A kind of supersonic range finder and distance measuring method |
| CN109709568A (en) * | 2018-12-27 | 2019-05-03 | 钟祥博谦信息科技有限公司 | A kind of range-measurement infrared system and ranging data processing method |
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Application publication date: 20140305 |