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JPS56140272A - Searching method of obstacle with supersonic wave - Google Patents

Searching method of obstacle with supersonic wave

Info

Publication number
JPS56140272A
JPS56140272A JP4311080A JP4311080A JPS56140272A JP S56140272 A JPS56140272 A JP S56140272A JP 4311080 A JP4311080 A JP 4311080A JP 4311080 A JP4311080 A JP 4311080A JP S56140272 A JPS56140272 A JP S56140272A
Authority
JP
Japan
Prior art keywords
obstacle
receiving
search zone
detected
oscillator
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
JP4311080A
Other languages
Japanese (ja)
Other versions
JPS6152954B2 (en
Inventor
Yutaka Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP4311080A priority Critical patent/JPS56140272A/en
Publication of JPS56140272A publication Critical patent/JPS56140272A/en
Publication of JPS6152954B2 publication Critical patent/JPS6152954B2/ja
Granted legal-status Critical Current

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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications

Landscapes

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

Abstract

PURPOSE:To transmit an obstacle direction and its distance information accurately by dividing a search zone of an obstacle with a supersonic wave into the left and the right sides of the device to detect in order. CONSTITUTION:First, an obstacle TL in a search zone AL on the left side which includes the central axis of a device B is detected by using right and left oscillation receivers RL1 and RR1 positioned on both sides of a supersonic oscillator S and its central axis symmetrically. The detection of this obstacle TL is performed by oscillating the supersonic pulse toward the left side search zone A with a directional oscillator S and receiving a reflection pulse to the right and left oscillation receiver RL1 and RR1. The distance to the obstacle is detected by the time difference between the transmission from the oscillator S and the receiving of the receiver. Further, the direction of the obstacle can be detected by the time difference or phase difference of the receiving pulse in the right and left receivers RL1 and RR1. The same detection can be performed regarding the right side search zone AR. The signal of the receiving oscillation is indicated on a tactual sense matrix plate (d) through a decoder (c).
JP4311080A 1980-04-02 1980-04-02 Searching method of obstacle with supersonic wave Granted JPS56140272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4311080A JPS56140272A (en) 1980-04-02 1980-04-02 Searching method of obstacle with supersonic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4311080A JPS56140272A (en) 1980-04-02 1980-04-02 Searching method of obstacle with supersonic wave

Publications (2)

Publication Number Publication Date
JPS56140272A true JPS56140272A (en) 1981-11-02
JPS6152954B2 JPS6152954B2 (en) 1986-11-15

Family

ID=12654685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4311080A Granted JPS56140272A (en) 1980-04-02 1980-04-02 Searching method of obstacle with supersonic wave

Country Status (1)

Country Link
JP (1) JPS56140272A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114031U (en) * 1984-06-06 1986-01-27 株式会社 セコ−技研 Guide device for the blind

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114031U (en) * 1984-06-06 1986-01-27 株式会社 セコ−技研 Guide device for the blind

Also Published As

Publication number Publication date
JPS6152954B2 (en) 1986-11-15

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