GB1247122A - Ship's warning system - Google Patents

Ship's warning system

Info

Publication number
GB1247122A
GB1247122A GB01702/70A GB1170270A GB1247122A GB 1247122 A GB1247122 A GB 1247122A GB 01702/70 A GB01702/70 A GB 01702/70A GB 1170270 A GB1170270 A GB 1170270A GB 1247122 A GB1247122 A GB 1247122A
Authority
GB
United Kingdom
Prior art keywords
signals
signal
region
sounds
microphone
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.)
Expired
Application number
GB01702/70A
Inventor
Robert Fleming Jr
Robert Forest Riggs
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.)
Sperry Corp
Original Assignee
Sperry Rand Corp
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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1247122A publication Critical patent/GB1247122A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B45/00—Arrangements or adaptations of signalling or lighting devices
    • B63B45/08—Arrangements or adaptations of signalling or lighting devices the devices being acoustic
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/901—Noise or unwanted signal reduction in nonseismic receiving system
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/909—Collision avoidance

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

1,247,122. Sound source locating. SPERRY RAND CORP. 11 March, 1970 [12 March, 1969], No. 11702/70. Heading H4D. In a sound-monitoring system for installation on a ship, e.g. to detect other vessels in the ship's path, primary receiving means are responsive to sounds from one or more specified regions of interest, auxiliary receiving means are responsive to sounds from another region, signals from all receiving means are subjected to amplification with automatic gain control (AGC), reference signals each representing the long-term average of signal amplitude for a respective region are derived, and an alarm indicates if such a reference signal is momentarily exceeded by signals from a said region of interest. In the Fig. 1 system microphones 15, 13 detect sounds from port and starboard regions P, S of interest and sound aft (region A) is detected by microphone 17. The microphone outputs are multiplexed at 21, amplified at 27, de-multiplexed at 29 and routed to appropriate channels P, A, S. The P, A and S signals are summed at 31 to provide an AGC control signal. The AGC time constants are such that a momentary gain change prevents amplifier saturation and persists for at least one multiplex sampling cycle, whereby a burst of sound actuating any microphone gives a signal which passes through amplifier 27 without significant distortion but with essentially the same gain as corresponding signals from the other microphones. This ensures that spurious pick-up, e.g. by microphone 13 or 15 of sounds from region A, does not actuate the alarm. In each channel the long-term average amplitude is derived at 37 and any signal exceeding this by some threshold amount in the P or S channel actuates an alarm 39. The channel outputs at 37 are fed to a cathode-ray tube readout 41 giving a Y pattern display, or to a magnetic recorder. Switch system 45 enables selected ones of the P, A and S signals to be monitored on a loud-speaker or headphones 43, and enables calibrated delays to be inserted in the signal channels for determining the bearing if a sound source.
GB01702/70A 1969-03-12 1970-03-11 Ship's warning system Expired GB1247122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80663369A 1969-03-12 1969-03-12

Publications (1)

Publication Number Publication Date
GB1247122A true GB1247122A (en) 1971-09-22

Family

ID=25194478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01702/70A Expired GB1247122A (en) 1969-03-12 1970-03-11 Ship's warning system

Country Status (5)

Country Link
US (1) US3588803A (en)
JP (1) JPS5218474B1 (en)
DE (1) DE2011803A1 (en)
FR (1) FR2039585A5 (en)
GB (1) GB1247122A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204402A (en) * 1980-05-20 1988-11-09 Secr Defence Audio location of a sound source

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685009A (en) * 1970-06-19 1972-08-15 Sperry Rand Corp Lookout assist device
US4083031A (en) * 1970-07-23 1978-04-04 The United States Of America As Represented By The Secretary Of The Navy Acoustic presence detection method and apparatus
US3732536A (en) * 1970-09-18 1973-05-08 Gte Sylvania Inc Passive object detection apparatus including ambient noise compensation
FR2495099A1 (en) * 1980-12-01 1982-06-04 Vancheri Patrice SAFETY TAG FOR DIVERS
DE4412194A1 (en) * 1994-04-08 1995-10-12 Stn Atlas Elektronik Gmbh Warning system for installation on a ship
US5471195A (en) * 1994-05-16 1995-11-28 C & K Systems, Inc. Direction-sensing acoustic glass break detecting system
US11792782B1 (en) 2012-02-02 2023-10-17 Tybalt, Llc Cooperative and parasitic radio access networks
CN103023574A (en) * 2012-12-21 2013-04-03 天津光拓科技有限公司 Multifunctional optical fiber amplifier control system
US9771139B2 (en) 2015-01-29 2017-09-26 Leidos, Inc. Shipboard auditory sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204402A (en) * 1980-05-20 1988-11-09 Secr Defence Audio location of a sound source
GB2204402B (en) * 1980-05-20 1989-06-28 Secr Defence Method and apparatus for audio location

Also Published As

Publication number Publication date
JPS5218474B1 (en) 1977-05-21
DE2011803A1 (en) 1970-10-01
US3588803A (en) 1971-06-28
FR2039585A5 (en) 1971-01-15

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