JPS51140775A - Detecting system of obstables in smoke - Google Patents

Detecting system of obstables in smoke

Info

Publication number
JPS51140775A
JPS51140775A JP50065029A JP6502975A JPS51140775A JP S51140775 A JPS51140775 A JP S51140775A JP 50065029 A JP50065029 A JP 50065029A JP 6502975 A JP6502975 A JP 6502975A JP S51140775 A JPS51140775 A JP S51140775A
Authority
JP
Japan
Prior art keywords
smoke
obstables
detecting system
helmet
covered
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.)
Pending
Application number
JP50065029A
Other languages
Japanese (ja)
Inventor
Akio Shimozaka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP50065029A priority Critical patent/JPS51140775A/en
Publication of JPS51140775A publication Critical patent/JPS51140775A/en
Pending 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
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes

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)

Abstract

PURPOSE: Obstacles positioned in front of a person and covered by smoke is detected by installing transmitting unit and receiving unit of ultrasonic wave on a helmet and so on.
COPYRIGHT: (C)1976,JPO&Japio
JP50065029A 1975-05-30 1975-05-30 Detecting system of obstables in smoke Pending JPS51140775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50065029A JPS51140775A (en) 1975-05-30 1975-05-30 Detecting system of obstables in smoke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50065029A JPS51140775A (en) 1975-05-30 1975-05-30 Detecting system of obstables in smoke

Publications (1)

Publication Number Publication Date
JPS51140775A true JPS51140775A (en) 1976-12-03

Family

ID=13275130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50065029A Pending JPS51140775A (en) 1975-05-30 1975-05-30 Detecting system of obstables in smoke

Country Status (1)

Country Link
JP (1) JPS51140775A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7735230B2 (en) 2006-03-29 2010-06-15 Novatac, Inc. Head-mounted navigation system
GB2488770A (en) * 2011-03-05 2012-09-12 Paul Perry Vicinity indicator for a helmet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7735230B2 (en) 2006-03-29 2010-06-15 Novatac, Inc. Head-mounted navigation system
GB2488770A (en) * 2011-03-05 2012-09-12 Paul Perry Vicinity indicator for a helmet

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