WO2015030284A1 - Capteur ultrasonore de type en réseau pour détection de vitesse de corps mobile ou de véhicule - Google Patents

Capteur ultrasonore de type en réseau pour détection de vitesse de corps mobile ou de véhicule Download PDF

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Publication number
WO2015030284A1
WO2015030284A1 PCT/KR2013/007875 KR2013007875W WO2015030284A1 WO 2015030284 A1 WO2015030284 A1 WO 2015030284A1 KR 2013007875 W KR2013007875 W KR 2013007875W WO 2015030284 A1 WO2015030284 A1 WO 2015030284A1
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WO
WIPO (PCT)
Prior art keywords
ultrasonic
moving body
signal
transceiver
vehicle speed
Prior art date
Application number
PCT/KR2013/007875
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English (en)
Korean (ko)
Inventor
조애성
Original Assignee
주식회사 네미센스
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by 주식회사 네미센스 filed Critical 주식회사 네미센스
Priority to PCT/KR2013/007875 priority Critical patent/WO2015030284A1/fr
Publication of WO2015030284A1 publication Critical patent/WO2015030284A1/fr

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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
    • G01S15/88—Sonar systems specially adapted for specific applications
    • 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
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • 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
    • G01S15/87—Combinations of sonar systems

Definitions

  • the present invention relates to at least an array ultrasonic sensor for detecting at least a moving object or a vehicle speed.
  • Patent No. 10-0381874 relates to sample data for generating sample data by transmitting an ultrasound signal into a human body at a predetermined pulse repetition frequency and sampling the reflected signal.
  • Conversion means for processing said sample data to generate frequency distribution data of said sample data, said frequency distribution data representing a plurality of blood flow velocity components and each comprising a plurality of frequency components having a corresponding power level;
  • Blood flow velocity detection means for detecting blood flow velocity from the frequency distribution data, aliasing detection means for detecting whether aliasing has occurred in the frequency distribution data, and aliasing occurs when the aliasing detection means detects the aliasing.
  • So as to publish the ultrasonic diagnostic apparatus comprising a pulse repetition frequency updating means for updating the predetermined pulse repetition frequency.
  • the apparatus and method for measuring a vehicle speed using an image processing method include a video camera to which an image image of a driving vehicle is input; An image processor configured to generate images of different time zones for the same vehicle by using the image image input to the video camera; A frame buffer memory unit for storing an image processed by the image processor; A speed calculator configured to calculate a vehicle speed by using the two vehicle images generated by the image processor; And a controller configured to control an image image generation of the image processor, an image storage of the frame buffer memory unit, and a speed calculation process of the vehicle of the speed calculator, wherein the image processor is configured to display a valid background image from an image input to the video camera.
  • Background image generating unit for detecting, Vanishing point detection unit for detecting the vanishing point in the valid background image, Background removal unit for removing the background from the image input from the video camera using the valid background image, Vertical image using the vanishing point
  • a vehicle speed measuring apparatus using an image processing method comprising: a vertical image generating unit and a vehicle position detecting unit detecting a position of a vehicle using the vertical image.
  • the conventional moving object measuring technique uses a method using a frequency shift phenomenon (Doppler effect) of a wave reflected after transmitting electromagnetic waves, ultrasonic waves, and sound waves or estimates the speed of the moving object by an image processing technique.
  • Doppler effect a frequency shift phenomenon
  • a frequency analyzer is required and the apparatus becomes expensive and a frequency analysis time is required.
  • the image processing method is used, the measurement measurement speed is unknown and a high performance computing device and a high performance camera are required for the image processing.
  • a piezoelectric line sensor when using a piezoelectric sensor-type vehicle speed measuring device of a road, a piezoelectric line sensor must be installed by digging a moving path or a road of a vehicle or a piezoelectric line sensor. In the event of a failure, there was a problem that the vehicle traffic must be stopped and repaired.
  • the present invention uses ultrasonic waves but does not use the Doppler effect, an expensive high performance frequency analyzer is not required, and an arrangement for detecting a vehicle or vehicle speed that can calculate the speed of the vehicle in a short time, for example, 0.01 to 0.1 seconds To provide an ultrasonic sensor.
  • the present invention unlike the piezoelectric line sensor method (contact type) installed laterally on the road, is installed on one side of the driving path, not the driving path, so that the speed of the moving body (for example, the vehicle being driven) without directly contacting the moving body.
  • the speed of the moving body for example, the vehicle being driven
  • the present invention is installed on one side of the driving path, not the driving path, so that the speed of the moving body (for example, the vehicle being driven) without directly contacting the moving body.
  • an array ultrasonic sensor for detecting a moving object or a vehicle speed that can detect the speed of the moving object within an appropriate accuracy error.
  • a first ultrasonic transceiving unit 10 positioned on one side of the moving body traveling path and transmitting an ultrasonic signal in a direction crossing the moving body traveling path and receiving the ultrasonic waves reflected by the moving body;
  • the second ultrasonic transceiver 20 is arranged on the other side of the moving object traveling path and spaced apart from the first ultrasonic transceiver 10 and transmits an ultrasonic signal in a direction crossing the moving body traveling path and receives the ultrasonic waves reflected by the moving body.
  • An ultrasonic wave received from the operation controller 40 is amplified and transmitted to the first and second ultrasonic transceivers 10 and 20, and the ultrasonic waves received from the first and second ultrasonic transceivers 10 and 20.
  • an arithmetic and control unit 40 for calculating a moving body speed by using the ultrasonic signal received from the signal amplifying unit 30.
  • the ultrasonic wave is used but the Doppler effect is not used, an expensive high performance frequency analyzer is not required, and for detecting a vehicle or vehicle speed capable of calculating the speed of the moving body in a short time, for example, 0.01 to 0.1 seconds.
  • An array ultrasonic sensor is provided.
  • the moving body for example, a driving vehicle
  • the moving body is installed on one side of the driving path instead of the driving path without directly contacting the moving body.
  • An array ultrasonic sensor for detecting a vehicle or vehicle speed is provided that can detect the velocity of the vehicle within an appropriate accuracy error.
  • FIG. 1 is a conceptual diagram illustrating an array ultrasonic sensor for detecting a moving body or a vehicle speed according to an embodiment of the present invention.
  • Figure 2 is a configuration of the array type ultrasonic sensor for detecting a moving body or vehicle speed according to an embodiment of the present invention.
  • Figure 3 is an explanatory diagram of a speed calculation method of the operation control unit according to an embodiment of the present invention.
  • a first ultrasonic transceiving unit 10 positioned on one side of the moving body traveling path and transmitting an ultrasonic signal in a direction crossing the moving body traveling path and receiving the ultrasonic waves reflected by the moving body;
  • the second ultrasonic transceiver 20 is arranged on the other side of the moving object traveling path and spaced apart from the first ultrasonic transceiver 10 and transmits an ultrasonic signal in a direction crossing the moving body traveling path and receives the ultrasonic waves reflected by the moving body.
  • An ultrasonic wave received from the operation controller 40 is amplified and transmitted to the first and second ultrasonic transceivers 10 and 20, and the ultrasonic waves received from the first and second ultrasonic transceivers 10 and 20.
  • an arithmetic and control unit 40 for calculating a moving body speed by using the ultrasonic signal received from the signal amplifying unit 30.
  • FIG. 1 is a conceptual diagram illustrating an array ultrasonic sensor for detecting a moving body or a vehicle speed according to an embodiment of the present invention
  • FIG. 2 is a configuration diagram of the array ultrasonic sensor for detecting a moving body or a vehicle speed according to an embodiment of the present invention
  • 3 is an explanatory diagram of a speed calculation method of the operation control unit according to an embodiment of the present invention.
  • the array type ultrasonic sensor for detecting the moving object or the vehicle speed is the first ultrasonic transceiver 10, 2 ultrasonic transceiver 20 and the signal amplifier 30 and an acid control unit 40 are configured.
  • the first ultrasonic transceiver 10 is located on one side of the moving body traveling path and moving the moving body The ultrasonic signal is transmitted in a direction crossing the path and the ultrasonic wave reflected by the moving object is received.
  • the second ultrasonic transceiver 20 is arranged to be spaced apart from the first ultrasonic transceiver 10 on the other side of the moving body traveling path, transmits an ultrasonic signal in a direction crossing the moving body traveling path, and receives the ultrasonic waves reflected by the moving body. do.
  • the signal amplifier 30 is an ultrasonic radiation signal applied from the operation controller 40 Amplifies and transfers the first and second ultrasonic transceivers 10 and 20 to amplify the ultrasonic reflected signals received from the first and second ultrasonic transceivers 10 and 20.
  • the operation controller 40 calculates the moving object speed by using the ultrasonic signal received from the signal amplifier 30.
  • the operation controller 40 is a first received from the signal amplifier 30.
  • the moving object velocity is calculated using the reception time difference T between the ultrasonic reflection signal S1 and the second ultrasonic reflection signal S1 and the mutual separation distance D between the first and second ultrasonic transmission and reception units 10 and 20. do.
  • the moving body is at least four wheels including the front wheel and the rear wheel, the first ultrasonic
  • the transceiving unit 10 and the second ultrasonic transceiving unit 20 are preferably spaced apart from each other 2 to 10 m and arranged in parallel with the moving body moving direction.
  • At least one of the first and second ultrasonic transceiver 10, 20 is 30KHz It is desirable to emit ultrasonic waves that fall within the range of ⁇ 300 KHz. If the frequency is small (below 30KHz), it may enter the sound wave area and cause noise, and if the frequency is increased (more than 300KHz), the reach will be significantly reduced.
  • the first ultrasonic transceiver 10 and the second ultrasonic transceiver 20 may be An ultrasonic vibrator is included, and the natural resonant frequency of the ultrasonic vibrator is preferably in the range of 30 KHz to 300 KHz. If the frequency is small (below 30KHz), it may enter the sound wave area and cause noise, and if the frequency is increased (more than 300KHz), the reach will be significantly reduced.
  • the first and second ultrasonic transceiver 10, 20 is ultrasonic in the form of a pulse It is preferable that the first and second ultrasonic transceivers 10 and 20 receive the reflected wave at a time when ultrasonic radiation is not performed, and the interval t1 of the ultrasonic pulses is 0.01 to 0.1 seconds. If the pulse interval is too small If the ultrasonic oscillator responsiveness is poor, the radiation dose may be too small, if the pulse interval is too large, the resolution (resolution) is poor. Considering vehicle speed (30-100 km / h) when detecting a crosswalk area, it is desirable that it is 0.01 to 0.1 seconds.
  • the ultrasonic wave is used but the Doppler effect is not used, an expensive high performance frequency analyzer is not required, and for detecting a vehicle or vehicle speed capable of calculating the speed of the moving body in a short time, for example, 0.01 to 0.1 seconds.
  • An array ultrasonic sensor is provided.
  • the moving body for example, a driving vehicle
  • the moving body is installed on one side of the driving path instead of the driving path without directly contacting the moving body.
  • An array ultrasonic sensor for detecting a vehicle or vehicle speed is provided that can detect the velocity of the vehicle within an appropriate accuracy error.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (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

La présente invention concerne un capteur ultrasonore de type en réseau pour détection de vitesse de corps mobile ou de véhicule, comprenant : un premier émetteur-récepteur (10) ultrasonore qui est situé au niveau d'un côté d'un trajet de guidage d'un corps mobile, émet un signal ultrasonore dans la direction croisant le trajet de guidage du corps mobile, et reçoit une onde ultrasonore réfléchie par le corps mobile ; un second émetteur-récepteur (20) ultrasonore qui est disposé pour être espacé du premier émetteur-récepteur (10) ultrasonore au niveau de l'autre côté du trajet de guidage du corps mobile, émet le signal ultrasonore dans la direction croisant le trajet de guidage du corps mobile, et reçoit l'onde ultrasonore réfléchie par le corps mobile ; une unité (30) d'amplification de signal destinée à amplifier des signaux d'émission ultrasonore appliqués provenant d'une unité (40) de commande de calcul pour émettre les signaux d'émission ultrasonore amplifiés vers les premier et second émetteur-récepteurs (10, 20) ultrasonores, et amplifier des signaux de réflexion ultrasonore reçus provenant des premier et second émetteur-récepteurs (10, 20) ultrasonores ; et l'unité (40) de commande de calcul destinée à calculer la vitesse du corps mobile à l'aide des signaux ultrasonores reçus provenant de l'unité (30) d'amplification de signal.
PCT/KR2013/007875 2013-09-02 2013-09-02 Capteur ultrasonore de type en réseau pour détection de vitesse de corps mobile ou de véhicule WO2015030284A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/KR2013/007875 WO2015030284A1 (fr) 2013-09-02 2013-09-02 Capteur ultrasonore de type en réseau pour détection de vitesse de corps mobile ou de véhicule

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Application Number Priority Date Filing Date Title
PCT/KR2013/007875 WO2015030284A1 (fr) 2013-09-02 2013-09-02 Capteur ultrasonore de type en réseau pour détection de vitesse de corps mobile ou de véhicule

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WO2015030284A1 true WO2015030284A1 (fr) 2015-03-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106054201A (zh) * 2016-05-30 2016-10-26 大连海事大学 一种侧扫式船舶吃水量检测系统及其同步工作方法
TWI704365B (zh) * 2019-11-29 2020-09-11 國立交通大學 偵測裝置及適用之偵測方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007101295A (ja) * 2005-10-03 2007-04-19 Matsushita Electric Ind Co Ltd 追尾システムおよび自走体
JP2007115191A (ja) * 2005-10-24 2007-05-10 Sumitomo Electric Ind Ltd 車両感知システム、点検装置、および点検方法
KR100752679B1 (ko) * 2006-09-12 2007-08-29 경원훼라이트공업 주식회사 단일의 중간주파 증폭부를 갖는 초음파 배열센서 시스템
KR20080006406A (ko) * 2006-07-12 2008-01-16 한국건설기술연구원 교통파라미터를 측정하기 위한 측정시스템 및 그것을이용한 측정방법
US20090168603A1 (en) * 2007-12-26 2009-07-02 Denso Corporation Ultrasonic sensor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007101295A (ja) * 2005-10-03 2007-04-19 Matsushita Electric Ind Co Ltd 追尾システムおよび自走体
JP2007115191A (ja) * 2005-10-24 2007-05-10 Sumitomo Electric Ind Ltd 車両感知システム、点検装置、および点検方法
KR20080006406A (ko) * 2006-07-12 2008-01-16 한국건설기술연구원 교통파라미터를 측정하기 위한 측정시스템 및 그것을이용한 측정방법
KR100752679B1 (ko) * 2006-09-12 2007-08-29 경원훼라이트공업 주식회사 단일의 중간주파 증폭부를 갖는 초음파 배열센서 시스템
US20090168603A1 (en) * 2007-12-26 2009-07-02 Denso Corporation Ultrasonic sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106054201A (zh) * 2016-05-30 2016-10-26 大连海事大学 一种侧扫式船舶吃水量检测系统及其同步工作方法
CN106054201B (zh) * 2016-05-30 2018-06-19 大连海事大学 一种侧扫式船舶吃水量检测系统及其同步工作方法
TWI704365B (zh) * 2019-11-29 2020-09-11 國立交通大學 偵測裝置及適用之偵測方法

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