JPS5626273A - Car safety control method - Google Patents

Car safety control method

Info

Publication number
JPS5626273A
JPS5626273A JP10239779A JP10239779A JPS5626273A JP S5626273 A JPS5626273 A JP S5626273A JP 10239779 A JP10239779 A JP 10239779A JP 10239779 A JP10239779 A JP 10239779A JP S5626273 A JPS5626273 A JP S5626273A
Authority
JP
Japan
Prior art keywords
wave
car
pulse
reception
pair
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.)
Granted
Application number
JP10239779A
Other languages
Japanese (ja)
Other versions
JPS6247264B2 (en
Inventor
Toshio Yasui
Original Assignee
Nippon Denso Co Ltd
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
Application filed by Nippon Denso Co Ltd filed Critical Nippon Denso Co Ltd
Priority to JP54102397A priority Critical patent/JPS6247264B2/ja
Publication of JPS5626273A publication Critical patent/JPS5626273A/en
Publication of JPS6247264B2 publication Critical patent/JPS6247264B2/ja
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/93Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/93Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/932Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/93Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9324Alternative operation using ultrasonic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/88Radar or analogous systems specially adapted for specific applications
    • G01S13/93Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327Sensor installation details
    • G01S2013/93271Sensor installation details in the front of the vehicles

Abstract

PURPOSE:To realize a high-accuracy safety control, by emitting the fixed pulse wave from the car to give a cyclic variation to the time interval of the pulse wave and thus securing a clear distinction between the wave emitted from the emitter's car and the reception of the reflected wave. CONSTITUTION:When receiving command 11a, radar 11 of car 1 emits a pair of pulse waves obtained by giving the pulse modulation to the ultrasonic wave toward the front of the car from wave transmitter 12 and with fixed time interval Ta. And the time of the pulse interval is measured for a pair of reflected pulse waves received through wave receiver 13, and data 11c is generated. Based on data 11c, microcomputer 15 identifies the reception of a pair of real reflected pulse wave and then calculate the distance to preceding car 2 to generate the alarm signal and the seat- belt locking signal when the distance between cars becomes outside the safety region according to the speed of the car. In such way, a pair of pulse waves are emitted cyclically, and at the same time the fixed time interval is varied successively. As a result, an easy distinction is secured between the reception of the reflected wave and the reception of the noise.
JP54102397A 1979-08-10 1979-08-10 Expired JPS6247264B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54102397A JPS6247264B2 (en) 1979-08-10 1979-08-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54102397A JPS6247264B2 (en) 1979-08-10 1979-08-10

Publications (2)

Publication Number Publication Date
JPS5626273A true JPS5626273A (en) 1981-03-13
JPS6247264B2 JPS6247264B2 (en) 1987-10-07

Family

ID=14326308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54102397A Expired JPS6247264B2 (en) 1979-08-10 1979-08-10

Country Status (1)

Country Link
JP (1) JPS6247264B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863875A (en) * 1981-10-13 1983-04-15 Nissan Motor Co Ltd Search eye device for periphery of car
JPS61191945U (en) * 1985-05-23 1986-11-29
JPH0284483A (en) * 1988-09-20 1990-03-26 Tokiwa Kagaku Kogyo Kk Adhesive composition
JP2006118924A (en) * 2004-10-20 2006-05-11 Tdk Corp Pulse radar system
JP2006308482A (en) * 2005-04-28 2006-11-09 Sanyo Electric Co Ltd Detector
DE102011122318A1 (en) * 2011-12-23 2013-06-27 Valeo Schalter Und Sensoren Gmbh Method for the contactless detection of an object in an environment of a vehicle, driver assistance device with an ultrasound sensor device and vehicle with such a driver assistance device
JP2014006234A (en) * 2012-05-29 2014-01-16 Panasonic Corp Obstruction detection device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107533033B (en) * 2015-05-07 2021-06-22 深圳市大疆创新科技有限公司 System and method for detecting an object
JPWO2017134707A1 (en) 2016-02-02 2018-11-29 ソニー株式会社 Ranging device, ranging method, signal processing device, and projector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249792A (en) * 1975-10-20 1977-04-21 Mitsubishi Electric Corp Radar apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249792A (en) * 1975-10-20 1977-04-21 Mitsubishi Electric Corp Radar apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863875A (en) * 1981-10-13 1983-04-15 Nissan Motor Co Ltd Search eye device for periphery of car
JPS61191945U (en) * 1985-05-23 1986-11-29
JPH0284483A (en) * 1988-09-20 1990-03-26 Tokiwa Kagaku Kogyo Kk Adhesive composition
JP2006118924A (en) * 2004-10-20 2006-05-11 Tdk Corp Pulse radar system
JP2006308482A (en) * 2005-04-28 2006-11-09 Sanyo Electric Co Ltd Detector
DE102011122318A1 (en) * 2011-12-23 2013-06-27 Valeo Schalter Und Sensoren Gmbh Method for the contactless detection of an object in an environment of a vehicle, driver assistance device with an ultrasound sensor device and vehicle with such a driver assistance device
JP2014006234A (en) * 2012-05-29 2014-01-16 Panasonic Corp Obstruction detection device

Also Published As

Publication number Publication date
JPS6247264B2 (en) 1987-10-07

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