JPH0321794U - - Google Patents

Info

Publication number
JPH0321794U
JPH0321794U JP8079489U JP8079489U JPH0321794U JP H0321794 U JPH0321794 U JP H0321794U JP 8079489 U JP8079489 U JP 8079489U JP 8079489 U JP8079489 U JP 8079489U JP H0321794 U JPH0321794 U JP H0321794U
Authority
JP
Japan
Prior art keywords
received signal
seabed
detects
detection circuit
color
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
JP8079489U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP8079489U priority Critical patent/JPH0321794U/ja
Publication of JPH0321794U publication Critical patent/JPH0321794U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の魚群探知機の一実施例を示す
構成図、第２図ａ，ｂは第１図の実施例によりＣ
ＲＴ上に表示される画面を示す図、第３図は従来
例を示す構成図である。 １……送信器、２……送受波器、３，４……増
幅器、５……検波回路、６，１１……Ａ／Ｄ変換
器、７……距離補正回路、８……海底検出回路、
９……ピーク検出回路、１０……制御回路、１２
……ＲＯＭ、１３……ＲＡＭ、１４……タイマ、
１５……ＣＲＴコントローラ、１６……ＶＲＡＭ
、１７……Ｄ／Ａ変換器、１８……ＣＲＴ。 Figure 1 is a configuration diagram showing one embodiment of the fish finder of the present invention, and Figures 2a and b are C
FIG. 3, which is a diagram showing a screen displayed on the RT, is a configuration diagram showing a conventional example. 1... Transmitter, 2... Transmitter/receiver, 3, 4... Amplifier, 5... Detection circuit, 6, 11... A/D converter, 7... Distance correction circuit, 8... Seabed detection circuit ,
9...Peak detection circuit, 10...Control circuit, 12
...ROM, 13...RAM, 14...timer,
15...CRT controller, 16...VRAM
, 17...D/A converter, 18...CRT.

Claims (1)

【実用新案登録請求の範囲】 送信した超音波のエコーを受信信号として入力
し、受信信号に基づく探知画像を表示するカラー
魚群探知機において、 距離に対応して、受信信号の減衰量を補正する
距離補正回路と、 受信信号のうち海底からのものであることを検
出する海底検出回路と、 受信信号が海底からのものであることを海底検
出回路が検出した時、距離補正回路により補正さ
れた該受信信号のピークレベルを検出するピーク
検出回路と、 ピーク検出回路が検出したピークレベルをＡ／
Ｄ変換するＡ／Ｄ変換器と、 Ａ／Ｄ変換器の変換出力の値の大きさに基づい
たカラーを海底画像に対応して同一画面に表示さ
せる制御回路とを有することを特徴とするカラー
魚群探知機。[Claim for Utility Model Registration] In a color fish finder that inputs the echo of transmitted ultrasonic waves as a received signal and displays a detection image based on the received signal, the amount of attenuation of the received signal is corrected according to the distance. A distance correction circuit, a seabed detection circuit that detects that the received signal comes from the seabed, and a seabed detection circuit that detects that the received signal is from the seabed. A peak detection circuit that detects the peak level of the received signal; and A/A/
A color device characterized by having an A/D converter that performs D conversion, and a control circuit that displays a color based on the magnitude of the conversion output value of the A/D converter on the same screen in correspondence with a seabed image. Fish finder.
JP8079489U 1989-07-11 1989-07-11 Pending JPH0321794U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8079489U JPH0321794U (en) 1989-07-11 1989-07-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8079489U JPH0321794U (en) 1989-07-11 1989-07-11

Publications (1)

Publication Number Publication Date
JPH0321794U true JPH0321794U (en) 1991-03-05

Family

ID=31626161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8079489U Pending JPH0321794U (en) 1989-07-11 1989-07-11

Country Status (1)

Country Link
JP (1) JPH0321794U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11153667A (en) * 1997-11-18 1999-06-08 Furuno Electric Co Ltd Water bottom searching device
JP2003014840A (en) * 2001-07-02 2003-01-15 Furuno Electric Co Ltd Underwater information display
JP2006208143A (en) * 2005-01-27 2006-08-10 Honda Electronic Co Ltd Bottom sediment displaying fish finder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143825U (en) * 1974-09-30 1976-03-31
JPS623082B2 (en) * 1981-08-11 1987-01-23 Hitachi Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143825U (en) * 1974-09-30 1976-03-31
JPS623082B2 (en) * 1981-08-11 1987-01-23 Hitachi Ltd

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11153667A (en) * 1997-11-18 1999-06-08 Furuno Electric Co Ltd Water bottom searching device
JP2003014840A (en) * 2001-07-02 2003-01-15 Furuno Electric Co Ltd Underwater information display
JP2006208143A (en) * 2005-01-27 2006-08-10 Honda Electronic Co Ltd Bottom sediment displaying fish finder

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