FR3101955B1 - ULTRASONIC DISTANCE MEASUREMENT DEVICE AND METHOD - Google Patents

ULTRASONIC DISTANCE MEASUREMENT DEVICE AND METHOD Download PDF

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Publication number
FR3101955B1
FR3101955B1 FR1911206A FR1911206A FR3101955B1 FR 3101955 B1 FR3101955 B1 FR 3101955B1 FR 1911206 A FR1911206 A FR 1911206A FR 1911206 A FR1911206 A FR 1911206A FR 3101955 B1 FR3101955 B1 FR 3101955B1
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FR
France
Prior art keywords
distance
signal
ultrasonic
transmitter
coming
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.)
Active
Application number
FR1911206A
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French (fr)
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FR3101955A1 (en
Inventor
Florian Briquel
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BH Technologies SAS
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BH Technologies SAS
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Publication date
Application filed by BH Technologies SAS filed Critical BH Technologies SAS
Priority to FR1911206A priority Critical patent/FR3101955B1/en
Priority to PCT/FR2020/051753 priority patent/WO2021069829A1/en
Publication of FR3101955A1 publication Critical patent/FR3101955A1/en
Application granted granted Critical
Publication of FR3101955B1 publication Critical patent/FR3101955B1/en
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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
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • G01S13/862—Combination of radar systems with sonar 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
    • G01S15/02—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
    • 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
    • G01S15/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S15/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • 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
    • G01S15/586—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets

Abstract

DISPOSITIF DE MESURE DE DISTANCE à ULTRASONS Dispositif (10) de mesure de distance et/ou de vitesse, le dispositif comprenant un émetteur ultrasonore (41) et un récepteur ultrasonore (42), une unité de commande (5) pour commander sélectivement l’émission et analyser des signaux reçus pour en déduire une distance (D) séparant le dispositif de mesure et au moins un objet (3) sur lequel des ondes ultrasonores émises se réfléchissent, le signal de réception (Rx(t)) en provenance du récepteur étant alors comparé au sein d’un mixer de réception (62) à un signal de mixage (Fdc(t)) correspondant au signal d’émission (Tx(t)) issu de l’émetteur modulo un décalage fréquentiel (Fsh), de sorte que la différence de fréquence entre ces deux signaux (Δf) est l’image du décalage temporel (ΔT) entre le signal émis et le signal reçu, ce qui permet de remonter à la distance (D) entre l’émetteur et l’objet. Figure pour l’abrégé : Figure 4ULTRASONIC DISTANCE MEASURING DEVICE A device (10) for measuring distance and / or speed, the device comprising an ultrasonic transmitter (41) and an ultrasonic receiver (42), a control unit (5) for selectively controlling the transmitting and analyzing received signals to deduce therefrom a distance (D) separating the measuring device and at least one object (3) on which the transmitted ultrasonic waves are reflected, the reception signal (Rx (t)) coming from the receiver being then compared within a reception mixer (62) with a mixing signal (Fdc (t)) corresponding to the transmission signal (Tx (t)) coming from the transmitter modulo a frequency shift (Fsh), so that the frequency difference between these two signals (Δf) is the image of the time shift (ΔT) between the transmitted signal and the received signal, which makes it possible to go back to the distance (D) between the transmitter and the 'object. Figure for the abstract: Figure 4

FR1911206A 2019-10-09 2019-10-09 ULTRASONIC DISTANCE MEASUREMENT DEVICE AND METHOD Active FR3101955B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1911206A FR3101955B1 (en) 2019-10-09 2019-10-09 ULTRASONIC DISTANCE MEASUREMENT DEVICE AND METHOD
PCT/FR2020/051753 WO2021069829A1 (en) 2019-10-09 2020-10-07 Device and method for measuring distance using ultrasound

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1911206 2019-10-09
FR1911206A FR3101955B1 (en) 2019-10-09 2019-10-09 ULTRASONIC DISTANCE MEASUREMENT DEVICE AND METHOD

Publications (2)

Publication Number Publication Date
FR3101955A1 FR3101955A1 (en) 2021-04-16
FR3101955B1 true FR3101955B1 (en) 2021-10-29

Family

ID=69903243

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1911206A Active FR3101955B1 (en) 2019-10-09 2019-10-09 ULTRASONIC DISTANCE MEASUREMENT DEVICE AND METHOD

Country Status (2)

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FR (1) FR3101955B1 (en)
WO (1) WO2021069829A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961039A (en) * 1987-04-03 1990-10-02 Matsushita Electric Works, Ltd. Moving object detecting device
GB9211086D0 (en) 1992-05-23 1992-07-15 Cambridge Consultants Short range electromagnetic sensing signal processing
DE19722180C2 (en) * 1997-05-27 1999-07-01 Siemens Ag Arrangement and method for measuring distance or speed
JP5654198B2 (en) * 2008-06-16 2015-01-14 日立アロカメディカル株式会社 Ultrasonic diagnostic equipment
US7773026B2 (en) * 2008-08-01 2010-08-10 Infineon Technologies Ag Heterodyne transceiver systems and methods
JP5814573B2 (en) * 2011-03-18 2015-11-17 富士通テン株式会社 Receiving machine
EP2901174B1 (en) * 2012-09-25 2019-07-24 Aselsan Elektronik Sanayi ve Ticaret Anonim Sirketi Frequency modulated continuous waveform (fmcw) radar

Also Published As

Publication number Publication date
WO2021069829A1 (en) 2021-04-15
FR3101955A1 (en) 2021-04-16

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