JPS6092943A - Rear monitor driver for controlling setting position of subject in accordance to car speed - Google Patents
Rear monitor driver for controlling setting position of subject in accordance to car speedInfo
- Publication number
- JPS6092943A JPS6092943A JP58202113A JP20211383A JPS6092943A JP S6092943 A JPS6092943 A JP S6092943A JP 58202113 A JP58202113 A JP 58202113A JP 20211383 A JP20211383 A JP 20211383A JP S6092943 A JPS6092943 A JP S6092943A
- Authority
- JP
- Japan
- Prior art keywords
- car
- subject
- transistor
- speed
- operational amplifier
- 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
Links
- 238000012806 monitoring device Methods 0.000 claims description 7
- 238000003384 imaging method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/20—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/22—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle
- B60R1/23—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view
- B60R1/26—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view to the rear of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/20—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/22—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle
- B60R1/28—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle with an adjustable field of view
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/681—Motion detection
- H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
- B60R2300/302—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing combining image information with GPS information or vehicle data, e.g. vehicle speed, gyro, steering angle data
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/8066—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring rearward traffic
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は車速に応じて、被写対象の設定位置を制御する
自動車の後方監視装置の駆動回路に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive circuit for a rearview monitoring device for an automobile that controls the set position of a subject according to vehicle speed.
従来の自動車の後方監視装置は自動車の背部に撮像器を
配設し、自動車の後方の背景等を運転席付近に設置して
いる画像器にて示現し、自動車の後方部の道路情況等を
ドライバーは監視していた。Conventional vehicle rear monitoring devices have an imager installed at the back of the vehicle.The imager installed near the driver's seat displays the background behind the vehicle, and the road conditions at the rear of the vehicle can be seen. The driver was watching.
前記、撮像器は撮像レンズが固定されており、常に自動
車の後方部の被写対象位置は固定しており、例えば、自
動車の車速が変化した場合には、該撮像器の有効な撮像
範囲は狭いものとならさるを得なかった。As mentioned above, the imaging lens of the imager is fixed, and the subject position at the rear of the car is always fixed. For example, when the speed of the car changes, the effective imaging range of the imager changes. If it was a narrow one, it would be a shame.
即ち、安全走行を企図するためには自動車の車速か高く
なる程遠方部の被写対象物を、自動車の車速か低くなる
程至近部の被写対象物をそれぞれ撮像する必要があった
。従来の技術ではこのような要求に満足することができ
なかった。That is, in order to plan for safe driving, it is necessary to image objects farther away as the speed of the vehicle increases, and images of objects closer as the speed of the vehicle decreases. Conventional techniques have not been able to satisfy these requirements.
また前記撮像器の撮像レンズの向きを人為的操作によっ
てコントロールし、かかる要求に対処する構成もあるが
、構造が複雑でかつ操作が煩しいという問題があった。Furthermore, there is a configuration in which the direction of the imaging lens of the image pickup device is controlled by manual operation to meet this requirement, but there are problems in that the structure is complicated and the operation is cumbersome.
本発明は紙上の問題点を解消すべく、発明したものであ
りスピードセンサーと、このスピードセンサー・−から
の信号を演算処理する中央演算処理部（以下、ＣＰＵと
いう）と、ＣＰＵからの出力信号で作動する撮像器部動
用モータとで構成し、車速に応じて被写対象の設定位置
を制御する新規な自動車の後方監視装置の駆動回路を提
供することを目的としたものである。The present invention was invented to solve the problems described in paper, and includes a speed sensor, a central processing unit (hereinafter referred to as CPU) that processes signals from the speed sensor, and an output signal from the CPU. The object of the present invention is to provide a drive circuit for a novel rear view monitoring device for an automobile, which is configured with a motor for moving an imager part operated by a motor, and controls the set position of a subject according to the vehicle speed.
以下、本発明に係る車速に応じて被写対象の設定位置を
制御する自動車の後方監視装置の駆動回路の一実施例を
詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a drive circuit for a rearward monitoring device for a vehicle that controls the set position of a subject according to the vehicle speed according to the present invention will be described in detail.
１はスピードセンサーであり、車速に応じて出力パルス
を発生する。２は中央演算処理部であり、該スピードセ
ンサー１の出力側に接続されている。該中央演算処理部
（以下単にｒｃＰＵＪという。）２は前記スピードセン
サー１からの出力パルスを処理、演算し、車速に適応し
た信号を出力する。３はディジタルアナログ変換器であ
り、前記ＣＰＵ２の出力側に接続されている。1 is a speed sensor, which generates an output pulse according to the vehicle speed. Reference numeral 2 denotes a central processing unit, which is connected to the output side of the speed sensor 1. The central processing unit (hereinafter simply referred to as rcPUJ) 2 processes and calculates the output pulses from the speed sensor 1, and outputs a signal adapted to the vehicle speed. 3 is a digital-to-analog converter, which is connected to the output side of the CPU 2.
該ディジタルアナログ変換器３はＣＰＵ２からのディジ
タル信号をアナログ信号に変換する機能を有する。４は
第１オペアンプ、５は第２オペアンプである。上記ディ
ジタルアナログ変換器３の出力側には抵抗６．７及び８
を直列接続構成した電路を接続している。上記抵抗６と
抵抗７の接続点は第１オペアンプ４の正極入力端子に、
上記抵抗７と抵抗８の接続点は第２オペアンプ５の負極
入力端子にそれぞれ接続している。The digital-to-analog converter 3 has a function of converting a digital signal from the CPU 2 into an analog signal. 4 is a first operational amplifier, and 5 is a second operational amplifier. Resistors 6.7 and 8 are connected to the output side of the digital-to-analog converter 3.
The circuit is connected in series. The connection point between the resistor 6 and the resistor 7 is connected to the positive input terminal of the first operational amplifier 4.
The connection point between the resistor 7 and the resistor 8 is connected to the negative input terminal of the second operational amplifier 5, respectively.
９は第１トランジスタであり、第１オペアンプ４の出力
側に抵抗１１を介して、そのベースが接続されている。A first transistor 9 has its base connected to the output side of the first operational amplifier 4 via a resistor 11.
ｌＯは第２トランジスタであり、第２オペアンプ５の出
力側に抵抗１２を介して、そのベースが接続されている
。前記第１トランジスタ９のコレクタと第２トランジス
タ１０のコレクタとの間には撮像器部動用モータ１３を
接続している。１４は撮像器角度検出用ボルームであり
、前記第２トランジスタ１０のエミッタに接続している
。IO is a second transistor, and its base is connected to the output side of the second operational amplifier 5 via a resistor 12. An image pickup motor 13 is connected between the collector of the first transistor 9 and the collector of the second transistor 10. 14 is a volume for detecting the angle of the imager, and is connected to the emitter of the second transistor 10.
前記第１オペアンプの負極入力端子及び第２オペアンプ
の正極入力端子は抵抗１５を介してそれぞれ撮像器角度
検出用ポルーム１４に接続されている。１６及び１７は
抵抗であり、抵抗１６は第１トランジスタ９のベースと
エミッタとの間に、抵抗１７は第２トランジスタ１０の
ベースとエミッタとの間にそれぞれ接続構成している。The negative input terminal of the first operational amplifier and the positive input terminal of the second operational amplifier are connected to the image pickup angle detection pole room 14 via a resistor 15, respectively. 16 and 17 are resistors, and the resistor 16 is connected between the base and emitter of the first transistor 9, and the resistor 17 is connected between the base and emitter of the second transistor 10, respectively.
前記第１トランジスタ９のエミッタと前記第２トランジ
スタ１０のエミッタは互いに接続構成されている。１８
は定電圧回路部であり、前記第１トランジスタ９のエミ
ッタとイグニションスイッチ１９との間に接続されてＧ
）る。The emitter of the first transistor 9 and the emitter of the second transistor 10 are connected to each other. 18
is a constant voltage circuit section, which is connected between the emitter of the first transistor 9 and the ignition switch 19;
).
図中２０は直流電源であり、その正極はイグニションス
イッチ１９に接続されている。In the figure, 20 is a DC power supply, the positive electrode of which is connected to the ignition switch 19.
次に作用を説明する０
自動車が走行を開始し、スピードセンサー１が作動し、
出力信号を送出する。該スピードセンサー１は車速に応
じた出力値を有する出力信号を導出する。ＣＰＵ２はス
ピードセンサー１からの出力信号を演算処理する。ディ
ジタル・アナログ変換器３は前記ＣＰＵ２からのディジ
タル出力信号をアナログ信号に変換し、出力する。Next, the operation will be explained.0 The car starts driving, the speed sensor 1 is activated,
Send an output signal. The speed sensor 1 derives an output signal having an output value depending on the vehicle speed. The CPU 2 processes the output signal from the speed sensor 1. The digital/analog converter 3 converts the digital output signal from the CPU 2 into an analog signal and outputs it.
車速が、例えば１０１ｍ／ｈ以下の低速である場合ディ
ジタル・アナログ変換器３はそれ番と応じたアナログ信
号を導出する。而して、接続点ａの電位Ｖａは比較的低
（、接続点Ｃの電位Ｖｃは比較的高いこととなり、つま
り
電位Ｖａの値〈電位Ｖｃの値
の不等式の関係が生じる。When the vehicle speed is low, for example, 101 m/h or less, the digital-to-analog converter 3 derives an analog signal corresponding to that number. Therefore, the potential Va at the connection point a is relatively low (and the potential Vc at the connection point C is relatively high), that is, the inequality relationship of the value of the potential Va<the value of the potential Vc occurs.
そこで、第１オペアンプ４が出力信号を導出すると共に
第２オペアンプ５が出力信号を導出しない。第１トラン
ジスタ９は不作動となり、第２トランジスタＩＯは作動
し、撮像器部動用モータ１３が右回転し、撮像器が下向
きに動く。Therefore, the first operational amplifier 4 derives an output signal, and the second operational amplifier 5 does not derive an output signal. The first transistor 9 is inactive, the second transistor IO is activated, the imager section movement motor 13 rotates clockwise, and the imager moves downward.
面しで、車速か低速の場合、自動車から比較的近い後方
部位の被写対象を設定することができる０
車速が、例えば、ＩＯ’ｍ／ｈを越え、かつ１０Ｉｓ／
１１未満の中途である場合、ディジタル拳アナログ変換
器３はそれに応じたアナログ信号を導出する。而して、
電位Ｖａは比較的高く、電位Ｖｃは比較的中位であり、
接続点すの電位Ｖｂ？ま比較的低いこととあり、つまり
、
電位Ｖａの値〉電位Ｖｃの値〉電位ｖｂの値の不等式の
関係が生じる。If the vehicle speed is low or low, you can set the subject to be relatively close to the rear of the vehicle.
If it is halfway below 11, the digital fist analog converter 3 derives an analog signal accordingly. Then,
Potential Va is relatively high, potential Vc is relatively medium,
Potential Vb of connection point S? In other words, the following inequality relationship arises: value of potential Va>value of potential Vc>value of potential vb.
そこで、第１オペアンプ４及び第２オペアンプ５が共に
出力信号を導出する。第１トランジスタ９及び第２トラ
ンジスタ１０は共に不作動状態である。撮像型駆動用モ
ーク１３は停止し、撮像器は中間位置を保持したままで
ある。而して、車速か中速の場合、自動車から比較的中
間位置にある後方部位の被写対象を設定することができ
る。Therefore, both the first operational amplifier 4 and the second operational amplifier 5 derive output signals. Both the first transistor 9 and the second transistor 10 are inactive. The imaging type drive moke 13 stops, and the imager remains in the intermediate position. In this way, when the vehicle speed is medium or medium, it is possible to set the object to be photographed at a rear part located at a relatively intermediate position from the vehicle.
車速か、例えば４（７’ｍ／ｈ以上の高速である場合、
デジタル・アナログ変換器３はそれに応じたアナログ信
号を導出する。Vehicle speed, for example 4 (if the vehicle is at a high speed of 7'm/h or higher,
The digital-to-analog converter 3 derives an analog signal accordingly.
而して、電位ｖｂは比較的高く、電位Ｖｃは比較的低い
こととなり、つまり、
電位ｖｂの値〉電位Ｖｃの値
の不等式の関係が生じる。As a result, the potential vb is relatively high and the potential Vc is relatively low, that is, the following inequality relationship arises: value of potential vb>value of potential Vc.
そこで、第１オペアンプ４は出力信号を導出しないが第
２オペアンプ５は出力信号を導出する。第１トランジス
タ９は作動し、第２トランジスタ１０は不作動となり撮
像器部動用モータ１３が左回転し、該撮像器が上向きに
動く。而して、車速が高速の場合、自動車から比較的遠
方の後方部位の被写対象を設定することができる。Therefore, the first operational amplifier 4 does not derive an output signal, but the second operational amplifier 5 derives an output signal. The first transistor 9 is activated, the second transistor 10 is deactivated, and the imager motor 13 rotates to the left, causing the imager to move upward. In this way, when the vehicle speed is high, it is possible to set the subject to be photographed at a relatively far rear region from the vehicle.
本発明に係る車速に応じて被写対象の設定位置を制御す
る自動車の後方監視装置の駆動回路は紙上した構成９作
用を有するので、次の効果がある。The drive circuit for a rear monitoring device for a vehicle that controls the set position of a subject according to the vehicle speed according to the present invention has the configuration 9 shown in the paper and has the following effects.
すなわち、スピードセンサー１と、該スピードセンサー
１の出力側に接続したＣＰＵ２と、該ＣＰＵ２の出力側
に接続したディジタル・アナログ変換器３と、該ディジ
タル・アナログ変換器３の出力側に接続した第１及び第
２オペアンプ４．５と、該第１及び第２オペアンプ４．
５の出力側に接続した第１及び第２トランジスタ９゜１
０と、該第１及び第２トランジスタ９．ｌＯの作動で可
逆運転される撮像器部動用モータ１３とでなり車速に応
じて、自動的に自動車の後方部の被写対象位置を設定す
ることができる。That is, a speed sensor 1, a CPU 2 connected to the output side of the speed sensor 1, a digital-to-analog converter 3 connected to the output side of the CPU 2, and a second CPU connected to the output side of the digital-to-analog converter 3. 1 and a second operational amplifier 4.5;
The first and second transistors 9゜1 connected to the output side of 5
0, and the first and second transistors 9. Since the image pickup part movement motor 13 is reversibly operated by the operation of IO, it is possible to automatically set the subject position at the rear of the automobile according to the vehicle speed.
従って、自動車の後続車の近接位置等を検出することが
でき、安定運転に寄与することができる。すなわち急ブ
レーキ等による追突事故を防止することができる。Therefore, it is possible to detect the proximity position of a vehicle following the vehicle, contributing to stable driving. In other words, rear-end collisions caused by sudden braking or the like can be prevented.
また、距離感覚の錯誤が少なくなり、種々の安全に対す
る事前の対策や操作が可能となる。Additionally, errors in distance perception are reduced, and various safety measures and operations can be taken in advance.
図面は本発明に係る車速に応じて被写対象の設定位置を
制御する自動車の後方監視装置の駆動回路の一実施例を
示す電気回路図である。
ｌ・・・・・・スピードセンサー、２・・・・・・中央
演算処理部、３・・・・・・ディジタル・アナログ変換
器、４・・・・・・第１コンパレータ、５・・・・・・
第２コンパレーク、９・・・・・・第１トランジスタ、
１０・・・・・・第２トランジスタ、１３・・・・・・
撮像器部動用モータ。
以上The drawing is an electric circuit diagram showing an embodiment of a drive circuit of a rear monitoring device for an automobile that controls the set position of a subject according to the vehicle speed according to the present invention. 1...Speed sensor, 2...Central processing unit, 3...Digital-to-analog converter, 4...First comparator, 5... ...
second comparator, 9...first transistor,
10...second transistor, 13...
Motor for moving the imager part. that's all
Claims (1)
続した中央演算処理部と、該中央演算処理部の出力側に
接続したディジタル・アナログ変換器と、該ディジタル
・アナログ変換器の出力側ｌこ接続された第１及び゛第
２コンパレータと、該第１及び第２コンパレータの出力
側に接続した第１及び第２トランジスタと、該第１及び
第２トランジスタの作動で、可逆回転する撮像器部動用
モータとで構成されたことを特徴とする車速に応して被
写対象の設定位置を制御する自動車の後方監視装置の駆
動回路０A speed sensor, a central processing unit connected to the output side of the speed sensor, a digital-to-analog converter connected to the output side of the central processing unit, and an output side of the digital-to-analog converter connected to each other. first and second comparators, first and second transistors connected to the output sides of the first and second comparators, and an imager part movement motor that is reversibly rotated by the operation of the first and second transistors. A drive circuit 0 for a rear monitoring device for an automobile that controls a set position of a subject according to vehicle speed, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58202113A JPS6092943A (en) | 1983-10-28 | 1983-10-28 | Rear monitor driver for controlling setting position of subject in accordance to car speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58202113A JPS6092943A (en) | 1983-10-28 | 1983-10-28 | Rear monitor driver for controlling setting position of subject in accordance to car speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6092943A true JPS6092943A (en) | 1985-05-24 |
Family
ID=16452172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58202113A Pending JPS6092943A (en) | 1983-10-28 | 1983-10-28 | Rear monitor driver for controlling setting position of subject in accordance to car speed |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6092943A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62155140A (en) * | 1985-12-27 | 1987-07-10 | Aisin Warner Ltd | Road image input system for controlling vehicle |
| JP2006331164A (en) * | 2005-05-27 | 2006-12-07 | Matsushita Electric Ind Co Ltd | Image processing apparatus |
-
1983
- 1983-10-28 JP JP58202113A patent/JPS6092943A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62155140A (en) * | 1985-12-27 | 1987-07-10 | Aisin Warner Ltd | Road image input system for controlling vehicle |
| JP2006331164A (en) * | 2005-05-27 | 2006-12-07 | Matsushita Electric Ind Co Ltd | Image processing apparatus |
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