JPS611180A - Magnetic recorder mounted on running body - Google Patents

Magnetic recorder mounted on running body

Info

Publication number
JPS611180A
JPS611180A JP59122477A JP12247784A JPS611180A JP S611180 A JPS611180 A JP S611180A JP 59122477 A JP59122477 A JP 59122477A JP 12247784 A JP12247784 A JP 12247784A JP S611180 A JPS611180 A JP S611180A
Authority
JP
Japan
Prior art keywords
output
speed
frequency
signal
frequency divider
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
JP59122477A
Other languages
Japanese (ja)
Inventor
Takekatsu Morimoto
森本 武克
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59122477A priority Critical patent/JPS611180A/en
Publication of JPS611180A publication Critical patent/JPS611180A/en
Pending legal-status Critical Current

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  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To record stably a picture by detecting rotating movement corresponding to a running speed of a running body, frequency-dividing its detected output and using it as a trigger signal of a video tape recorder to control the frame pickup speed in response to the running speed of the running body. CONSTITUTION:The turning movement in interlocking with the rotation of an automobile is detected by an FG head (turning detector) 28 of a magnetic recorder mounted on running body and a frequency output in response to the car speed is frequency-divided by a frequency divider 29. The frequency division output of the frequency divider 29 is fed to a differentiating circuit 30, the frequency division output is waveform-shaped, an output signal (a) is fed to the set input of an R-SFF31 and a vertical synchronizing signal (b) is inputted to a reset input of the FF31. The FF31 outputs the set input as an output signal A proportional to the speed of an automobile and fed to a tape decoder as a trigger signal for framing. Further, an output of the frequency divider 29 is inputted to a character generator 33 via a speedometer 32, speed character information is outputted from the generator 33 and the picture is recorded stably.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は走行体搭載用磁気記録装置の中でも、特に走行
体にビデオカメラを搭載して駒撮りビデオテープレコー
ダにより走行体走行状態を一本のテープに長時間記録す
るものに関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic recording device mounted on a traveling body, in particular, a video camera is mounted on the traveling body and a frame-by-frame video tape recorder is used to record the traveling state of the traveling body on a single tape. Regarding things that are recorded for a long time.

従来例の構成とその問題点 従来の駒撮りビデオテープレコーダの記録モードは第1
図のように構成されている。(1)は走行状態を記録す
るビデオカメラ、(2)はビデオ信号記録回路系で、ビ
デオカメラ(1)の出力のビデオ信号のうち、輝度成分
をFM変調しクロマ信号は低域周波数変換し、これを混
合した状態でスイッチングゲート(3)に入力する。(
5)は垂直同期信号分離回路で、出力を回転シリンダ(
14)を制御するシリンダ・サーボ回路系(6)の位相
暴準信号として使用されている。また、垂直同期信号分
離回路(5)の出力は分周回路(8)に入力され分周出
力は1フイールド(16,7m5)より少し長い目の時
定数T1をもつモノマルチ回路(9)をトリガーし、モ
ノマルチ回路(9)の出力により前記スイソチングゲー
1〜(3)を導通させビデオ記録アンプ(4)に入力し
The configuration of the conventional example and its problems The recording mode of the conventional frame-by-frame video tape recorder is the first
It is configured as shown in the figure. (1) is a video camera that records driving conditions, and (2) is a video signal recording circuit system that FM modulates the luminance component of the video signal output from the video camera (1) and converts the chroma signal to a low frequency. , are mixed and input to the switching gate (3). (
5) is a vertical synchronization signal separation circuit that outputs the output from the rotating cylinder (
14) is used as a phase normalization signal for the cylinder servo circuit system (6). In addition, the output of the vertical synchronization signal separation circuit (5) is input to a frequency divider circuit (8), and the divided output is a monomulti circuit (9) with a time constant T1 slightly longer than one field (16,7m5). When triggered, the output of the mono multi-circuit (9) turns on the switching games 1-(3) and inputs it to the video recording amplifier (4).

この出力を回転シリンダ(14)に取り付けたビデオヘ
ッド(24)にロータリー1〜ランス(図示していない
)を介して印加しビデオテープ(25)のビデオトラッ
ク部(26)に記録する。(15)は回転シリンダ(I
4)に直結されたシリンダ・モータで、速度検出用のF
Gヘッド、位置検出用のPGヘッドを内蔵しており、P
Gヘッド出力は制御出力線(17)に、FGヘッド出力
は制御出力線(16)に出力されており、それぞれシリ
ンダ・サーボ回路系(6)に入力される。シリンダ・サ
ーボ回路系(6)の出力はシリンダ駆動アンプ(7)を
介して前記シリンダ・モータ(15)に印加される。ま
た、前記分周器(8)の出力はキャプスタン・サーボ回
路(10)に印加されキャプスタン・モータ駆動アンプ
(11)を介してキャプスタン・モータ(18)に印加
されキャプスタン・モータ(18)を間欠駆動し、モー
タ・プーリー(19)、ベルト(20)、フライホイー
ル(21)を介してキャプスタン軸(22)を駆動する
。更に、前記分周器(8)の出力は、フリップ・フロッ
プで構成される(1/2)分局器(12)ならびにコレ
トロール記録アンプ(13)を介してコントロール・ヘ
ッド(23)に入力されてビデオテープ(25)のコン
トロール・トラック(27)に記録される。第2図はビ
デオテープ(25)の記録跡を示す。
This output is applied to a video head (24) attached to a rotating cylinder (14) via a rotary lance (not shown) and recorded on a video track section (26) of a video tape (25). (15) is the rotating cylinder (I
4) A cylinder motor directly connected to F for speed detection.
Built-in G head, PG head for position detection,
The G head output is output to a control output line (17), and the FG head output is output to a control output line (16), which are respectively input to the cylinder servo circuit system (6). The output of the cylinder servo circuit system (6) is applied to the cylinder motor (15) via a cylinder drive amplifier (7). Further, the output of the frequency divider (8) is applied to the capstan servo circuit (10) and applied to the capstan motor (18) via the capstan motor drive amplifier (11). 18) is intermittently driven to drive the capstan shaft (22) via the motor pulley (19), belt (20), and flywheel (21). Further, the output of the frequency divider (8) is input to the control head (23) via a (1/2) divider (12) composed of a flip-flop and a coretrol recording amplifier (13). and recorded on the control track (27) of the videotape (25). Figure 2 shows the recording trace of the videotape (25).

このような従来の駒撮りVTRの場合は分周器(8)の
分周比を、例えば(1/60)にしたとすると、低速で
はあまり問題ないが高速の場合は駒と駒との記録間隔が
1秒となり、間隔が長ずざる。高速でも車の状態を適当
に記録しようとすれば例えば(1/30)に(間隔0.
5秒)決める必要がある。この場合、卓のスピードに関
係なく  (1//30)となるため、ノーマルスピー
ドで60分用のテープを用いると30時間しか記録でき
ないし、テープの長さと走行距離との対応が正確にでき
ないのが現状である。
In the case of such a conventional frame-taking VTR, if the frequency division ratio of the frequency divider (8) is set to, for example, (1/60), there is not much problem at low speeds, but at high speeds, recording between frames becomes difficult. The interval becomes 1 second, and the interval becomes longer. If you want to properly record the state of the car even at high speeds, for example, (1/30) (at intervals of 0.
5 seconds) I need to decide. In this case, it will be (1//30) regardless of the speed of the desk, so if you use a 60-minute tape at normal speed, you can only record 30 hours, and the correspondence between the length of the tape and the distance traveled cannot be accurately determined. is the current situation.

発明の目的 本発明は走行体のスピードにかかわらず適切な駒取り記
録ができる走行体搭載用磁気記録装置を提供することを
目的とする。
OBJECTS OF THE INVENTION It is an object of the present invention to provide a magnetic recording device mounted on a moving body that can perform appropriate frame recording regardless of the speed of the moving body.

発明の構成 本発明の走行体搭載用磁気記録装置は、走行体の走行速
度に対応した回転運動を検出する回転検出器を設け、こ
の回転検出器の出力を分周する分周器を設け、この分周
器の出力信号を駒撮りビデオテープレコーダのトリガー
信号として、走行体のスピードに対応して駒取り記録ス
ピードを変化させることを特徴とする。
Structure of the Invention The magnetic recording device mounted on a traveling body of the present invention includes a rotation detector that detects rotational motion corresponding to the traveling speed of the traveling body, and a frequency divider that divides the output of the rotation detector, The output signal of this frequency divider is used as a trigger signal for a frame recording video tape recorder, and the frame recording speed is changed in accordance with the speed of the traveling object.

実施例の説明 以下、本発明の一実施例を第3図と第4図に基づいて説
明する。第3図には第1図とは異なる部分の構成だけが
示されている。
DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. FIG. 3 shows only the configuration of parts that are different from FIG. 1.

(28)は自動車の車軸の回転に連動した回転運動を検
出して車速に応じた周波数の出力を発生するFGヘッド
で、出力は分局器(29)に入力される。
(28) is an FG head that detects the rotational movement linked to the rotation of the axle of the automobile and generates an output at a frequency corresponding to the vehicle speed, and the output is input to the splitter (29).

分周器(29)の出力は微分回路(30)を介して第4
図(イ)の波形に変換される。微分回路(30)の出力
信号はセット−リセット型スリップ・フロップ(31)
のセット入力に印加してフリップ・フロップ(31)の
出力Aを第4図(ハ)に示すように゛′H″ルベルに反
転させる。なお、フリップ・フロップ(31)のリセッ
ト入力には垂直同期信号分離回路(5)の出力に発生す
る垂直同期信号〔第4図(ロ)〕が印加されており、フ
リップ・フロップ(31)の前記出力は第4図(ハ)に
示すように゛′L′″レベルに復帰する。つまり、第3
図では第1図における分局器(8)をフリップ・フロッ
プ(31)に置換して、自動車のスピードに比例した速
度で駒取り記録を達成している。
The output of the frequency divider (29) is passed to the fourth differential circuit (30).
The waveform is converted to the waveform shown in figure (a). The output signal of the differentiating circuit (30) is a set-reset type slip-flop (31)
is applied to the set input of the flip-flop (31) to invert the output A of the flip-flop (31) to the ``H'' level as shown in FIG. The vertical synchronizing signal [Fig. 4 (b)] generated in the output of the synchronizing signal separation circuit (5) is applied, and the output of the flip-flop (31) is as shown in Fig. 4 (c). Returns to 'L''' level. In other words, the third
In the figure, the splitter (8) in Figure 1 is replaced with a flip-flop (31) to achieve frame recording at a speed proportional to the speed of the car.

第4図の(ニ)はモノマルチ回路(9)の出力波形、(
ホ)は(1/2)分周器(12)の出力波形である。
(d) in Figure 4 is the output waveform of the mono multi-circuit (9), (
E) is the output waveform of the (1/2) frequency divider (12).

したがって、例えば分局器(29)を時速36km/H
で1パルス出力されるように設定すれば、自動車が10
m進む毎に1駒記録され、60分テープでは3600 
(秒)x60(フィールド)xlo[m]÷1000 
= 2160−走行距離が記録できる。また、このよう
にするとテープ長と走行距離とが比例するため、テープ
の再生時にも記録部分の頭出しが容易にできる。
Therefore, for example, if the branching device (29) is operated at a speed of 36 km/h
If you set it so that 1 pulse is output at
One frame is recorded every m, and 3600 frames are recorded on a 60 minute tape.
(seconds) x60 (field) xlo [m] ÷ 1000
= 2160 - Mileage can be recorded. Furthermore, since the tape length is proportional to the running distance, it is easy to locate the beginning of the recorded portion when playing back the tape.

再生コントロール信号の間隔と走行距離が比例している
ために、再生時に又は早送り、巻戻し時にコントロール
・パルスを計数することにより記録時の走行距離が計測
できる。またコントロール・ヘッドのかわりにキューヘ
ッドを使っても同様の効果が得られることは当然である
Since the distance traveled is proportional to the interval between playback control signals, the distance traveled during recording can be measured by counting the control pulses during playback, fast forwarding, and rewinding. It goes without saying that the same effect can be obtained by using a cue head instead of a control head.

また分局器(29)の出力を第3図のように速度メータ
(32)に入力することにより速度メータの入力信号に
も共用できる。更に速度メータ(32)のデイジタル信
号をキャラクタジェネレータ(33)を介してテレビカ
メラ(1)の出力に重畳することにより駒撮り記録の各
フィールドに走度を記録することもできる。
Furthermore, by inputting the output of the branching device (29) to the speedometer (32) as shown in FIG. 3, it can also be used as an input signal for the speedometer. Furthermore, by superimposing the digital signal of the speedometer (32) on the output of the television camera (1) via the character generator (33), the running speed can be recorded in each field of the frame-by-frame recording.

発明の詳細 な説明のように本発明の走行体搭載用磁気記録装置、は
、走行体の走行速度に対応した回転運動を検出する回転
検出器の出力を分周して、この分周信号を駒撮りビデオ
テープレコーダのトリガー信号としたため、駒撮り速度
を走行体の走行速度に応じてコン1〜ロールでき、走行
体の走行速度にかかわらず安定に記録できる。しかも走
行距離とテープ長さとが比例関係になるため、再生時に
おける必要な部分の頭出しが容易になるものである。
As described in the detailed description of the invention, the magnetic recording device mounted on a traveling object of the present invention frequency-divides the output of a rotation detector that detects rotational motion corresponding to the traveling speed of the traveling object, and generates this frequency-divided signal. Since it is used as a trigger signal for a frame-by-frame video tape recorder, the frame-by-frame shooting speed can be controlled from 1 to 1 according to the running speed of the moving object, and recording can be performed stably regardless of the running speed of the moving object. Moreover, since the running distance and the tape length are in a proportional relationship, it is easy to find the beginning of a necessary section during playback.

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

第1図は従来の駒撮りVTRの記録系の構成図。 第2図は記録跡の説明図、第3図は本発明の一実施例の
要部構成図、第4図は第3図の要部波形図である。 (1)・・・ビデオカメラ、(5)・垂直同期信号分離
回路、(28)・・FGヘッド〔回転検出器〕、(29
)・・分局器、(30)・・・微分回路、(31)・フ
リップ・フロップ、(32)・速度メータ、A・・フリ
ップ・フロップ(31)の出力信号〔トリガー信号〕
FIG. 1 is a block diagram of the recording system of a conventional stop-motion VTR. FIG. 2 is an explanatory diagram of a recording trace, FIG. 3 is a configuration diagram of a main part of an embodiment of the present invention, and FIG. 4 is a waveform diagram of a main part of FIG. (1)...Video camera, (5)-Vertical synchronization signal separation circuit, (28)...FG head [rotation detector], (29)
)... Brancher, (30)... Differentiating circuit, (31) Flip-flop, (32) Speed meter, A... Output signal of flip-flop (31) [Trigger signal]

Claims (1)

【特許請求の範囲】 1、走行体の走行速度に対応した回転運動を検出する回
転検出器を設け、この回転検出器の出力を分周する分周
器を設け、この分周器の出力信号を駒撮りビデオテープ
レコーダのトリガー信号とした走行体搭載用磁気記録装
置。 2、回転検出器として走行体のスピードメータの回転検
出器を用いたことを特徴とする特許請求の範囲第1項記
載の走行体搭載用磁気記録装置。
[Claims] 1. A rotation detector for detecting rotational motion corresponding to the traveling speed of the traveling object is provided, a frequency divider is provided for dividing the output of this rotation detector, and the output signal of this frequency divider is provided. A magnetic recording device mounted on a traveling vehicle that uses the same as a trigger signal for a frame-by-frame video tape recorder. 2. A magnetic recording device mounted on a traveling body according to claim 1, wherein a rotation detector of a speedometer of the traveling body is used as the rotation detector.
JP59122477A 1984-06-14 1984-06-14 Magnetic recorder mounted on running body Pending JPS611180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59122477A JPS611180A (en) 1984-06-14 1984-06-14 Magnetic recorder mounted on running body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59122477A JPS611180A (en) 1984-06-14 1984-06-14 Magnetic recorder mounted on running body

Publications (1)

Publication Number Publication Date
JPS611180A true JPS611180A (en) 1986-01-07

Family

ID=14836812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59122477A Pending JPS611180A (en) 1984-06-14 1984-06-14 Magnetic recorder mounted on running body

Country Status (1)

Country Link
JP (1) JPS611180A (en)

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