SE8500681L - REFLECTION TYPE OBJECT DETECTION DEVICE - Google Patents

REFLECTION TYPE OBJECT DETECTION DEVICE

Info

Publication number
SE8500681L
SE8500681L SE8500681A SE8500681A SE8500681L SE 8500681 L SE8500681 L SE 8500681L SE 8500681 A SE8500681 A SE 8500681A SE 8500681 A SE8500681 A SE 8500681A SE 8500681 L SE8500681 L SE 8500681L
Authority
SE
Sweden
Prior art keywords
waves
detected
wave
reflected
same
Prior art date
Application number
SE8500681A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE461060B (en
SE8500681D0 (en
Inventor
Y Naruse
Original Assignee
Aisin Seiki
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
Publication date
Priority claimed from JP59060338A external-priority patent/JPS60203879A/en
Priority claimed from JP59060335A external-priority patent/JPS60203876A/en
Priority claimed from JP59060337A external-priority patent/JPS60203878A/en
Priority claimed from JP59060336A external-priority patent/JPS60203877A/en
Application filed by Aisin Seiki filed Critical Aisin Seiki
Publication of SE8500681D0 publication Critical patent/SE8500681D0/en
Publication of SE8500681L publication Critical patent/SE8500681L/en
Publication of SE461060B publication Critical patent/SE461060B/en

Links

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
    • 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
    • G01S7/52003—Techniques for enhancing spatial resolution of targets
    • 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
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

The distance of an object is measured by using and measuring the time at which reflected waves 20b, 30b are detected. The waves are observed from the instant at which direct waves might possibly appear. If a wave is detected after the detection of a previous wave has ended, the measurement is repeated with a sensitivity updated to a higher level and, when the same wave is detected, this is considered as the reflected wave. If it is observed that the same waves are reflected by the same object with several different sensitivities, the value corresponding to the highest sensitivity is adopted. The transmitted level of the ultrasonic waves is regulated by using the mechanical properties of an ultrasonic transmitter through adjustments to the number of pulses or frequency of a binary signal which actuates the ultrasonic transmitter. If either the reflected waves or the direct waves are not detected at the predetermined time, the device is taken to be faulty. Application to the detection of objects from motor vehicles. <IMAGE>
SE8500681A 1984-03-28 1985-02-14 REFLECTION TYPE OBJECT DETECTION DEVICE SE461060B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP59060338A JPS60203879A (en) 1984-03-28 1984-03-28 Reflection type substance detector
JP59060335A JPS60203876A (en) 1984-03-28 1984-03-28 Reflection type substance detector
JP59060337A JPS60203878A (en) 1984-03-28 1984-03-28 Reflection type substance detector
JP59060336A JPS60203877A (en) 1984-03-28 1984-03-28 Reflection type substance detector

Publications (3)

Publication Number Publication Date
SE8500681D0 SE8500681D0 (en) 1985-02-14
SE8500681L true SE8500681L (en) 1985-09-29
SE461060B SE461060B (en) 1989-12-18

Family

ID=27463899

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8500681A SE461060B (en) 1984-03-28 1985-02-14 REFLECTION TYPE OBJECT DETECTION DEVICE

Country Status (2)

Country Link
FR (1) FR2562265B1 (en)
SE (1) SE461060B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937585C2 (en) * 1989-11-11 1998-11-05 Teves Gmbh Alfred Distance measuring device
DE102014111127A1 (en) 2014-08-05 2016-02-11 Valeo Schalter Und Sensoren Gmbh Method for generating an environment map and driver assistance system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474400A (en) * 1965-03-31 1969-10-21 Gen Signal Corp Sonic presence detection system and method
FR2400201A1 (en) * 1977-08-08 1979-03-09 Siderurgie Fse Inst Rech Automatically operating ultrasonic scanner - uses spectral sweep of probe sensitivities to detect interior discontinuities and responds to range of values
JPS5784377A (en) * 1980-11-14 1982-05-26 Nippon Denso Co Ltd Device for detecting obstacle
US4542489A (en) * 1982-05-18 1985-09-17 Aisin Seiki Kabushiki Kaisha Object detecting system of reflection type

Also Published As

Publication number Publication date
SE461060B (en) 1989-12-18
SE8500681D0 (en) 1985-02-14
FR2562265A1 (en) 1985-10-04
FR2562265B1 (en) 1989-12-01

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