JPH02206783A - Collision alarm device for vehicle - Google Patents
Collision alarm device for vehicleInfo
- Publication number
- JPH02206783A JPH02206783A JP1028225A JP2822589A JPH02206783A JP H02206783 A JPH02206783 A JP H02206783A JP 1028225 A JP1028225 A JP 1028225A JP 2822589 A JP2822589 A JP 2822589A JP H02206783 A JPH02206783 A JP H02206783A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- receiver
- transmitter
- transducer
- obstacle
- 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
- 238000005259 measurement Methods 0.000 description 7
- 238000013459 approach Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野コ
この発明は、車両の前方に電波、音波、光等を用いた測
距信号を発射し、障害物に当たって反射する測距信号に
より障害物を検知して警報を発出する車両用衝突警報装
置に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] This invention emits a distance measurement signal using radio waves, sound waves, light, etc. in front of a vehicle, and detects an obstacle by using the distance measurement signal that hits the obstacle and is reflected. This invention relates to a vehicle collision warning system that detects a collision and issues a warning.
[従来の技術]
従来、車両の前方に電波、音波、光等を用いた測距信号
を発射し、障害物に当たって反射する測距信号により障
害物を検知して警報を発出する車両用衝突警報装置が知
られているが、このものにあっては、車体に固定した送
受波器から測距信号を発射して車両の進行方向の障害物
を検知し、障害物が所定距離に接近すると、警報が発出
するようになっている。[Prior Art] Conventionally, a vehicle collision warning system emits a distance measurement signal using radio waves, sound waves, light, etc. in front of the vehicle, detects the obstacle based on the distance measurement signal reflected by hitting the obstacle, and issues a warning. This device detects obstacles in the direction of travel of the vehicle by emitting ranging signals from a transducer fixed to the vehicle body, and when the obstacle approaches a predetermined distance, A warning is set to be issued.
[発明が解決しようとする課題]
上述した車両用衝突警報装置で曲線道路進行中に道路上
の障害物を検知するためには、広い指向性を有する測距
信号を発射して操舵可能な範囲内の全ての障害物を検知
する等の方法が考えられるがデータ量が多量となり、こ
の多量のデータを高速かつ高度に処理する必要から装置
が複雑・高価となり、一般の車両に利用することができ
ないという課題があった。[Problems to be Solved by the Invention] In order to detect obstacles on the road while traveling on a curved road using the above-mentioned vehicle collision warning system, it is necessary to emit ranging signals with wide directivity to detect obstacles within the range in which the vehicle can be steered. Although methods such as detecting all obstacles within the vehicle can be considered, the amount of data would be large, and the need to process this large amount of data at high speed and in a sophisticated manner would make the device complex and expensive, making it difficult to use in general vehicles. The problem was that it couldn't be done.
この発明は、上記の課題を解決するためになされたもの
で、車両の操舵方向のみの障害物を検知して高速かつ高
度なデータ処理を必要としない安価な車両用衝突警報装
置を提供することを目的とする。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an inexpensive collision warning device for a vehicle that detects obstacles only in the steering direction of the vehicle and does not require high-speed and sophisticated data processing. With the goal.
[課題を解決するための手段]
この発明は、上述事情に鑑みなされたものであって、こ
の発明に係る車両用衝突警報装置は、車両の前進方向へ
障害物までの距離を測るための指向性の狭い測距信号を
送受する回動自在な送受波器と、該送受波器に結合して
測距信号を送受信する送受信器と、警報を発出する警報
器と、送受信器が出力す・る障害物までの距離情報が所
定警報条件を満足した場合に警報を発出する警報器と、
車両のステアリング機構に連動して操舵方向に測距信号
を送受するように送受波器を回動する回動手段とを備え
ている。回動手段により操舵方向に回動された送受波器
により車両の操舵方向の障害物までの距離を測るように
構成したものである。[Means for Solving the Problem] The present invention has been made in view of the above-mentioned circumstances. A rotatable transducer that transmits and receives a ranging signal with a narrow range, a transducer that is coupled to the transducer and transmits and receives a ranging signal, an alarm that issues an alarm, and a signal that the transceiver outputs. an alarm that issues an alarm when distance information to the obstacle satisfies predetermined alarm conditions;
A rotating means is provided for rotating the transducer so as to transmit and receive the ranging signal in the steering direction in conjunction with the steering mechanism of the vehicle. The transmitter/receiver is rotated in the steering direction by a rotating means to measure the distance to an obstacle in the steering direction of the vehicle.
また、前記送受波器を車両の前方両端部分に1個ずつ配
設してもよい。Further, one of the transducers may be provided at both front end portions of the vehicle.
更に、車両の前方両端部分に1個ずつ配設された送受波
器を前記送受信器へ交互に切り替えて接続する切替器を
設けてもよい。Furthermore, a switching device may be provided that alternately switches and connects the transducer/receiver disposed at each front end portion of the vehicle to the transmitter/receiver.
[作用〕
上述構成に基づき、車両を操舵する場合、回動手段は送
受波器をステアリング機構に連動して操舵方向に測距信
号を送受するように回動し、送受信器は送受波器へ測距
信号を送信する。そして、該測距信号を受信する送受波
器は車両の操舵方向へ測距信号を発射し、障害物に当た
って反射する測距信号を送受波器により受信し1.送受
波器が受信する測距信号は送受信器へ送信される。更に
、送受信器が受信する測距信号が所定警報条件を満足し
た場合に警報機は警報を発出する。また、車両が直進走
行している場合、送受波器は車両の前方へ測距信号を発
射しており、前述同様にして前方の障害物を検知して警
報を発出する。[Operation] Based on the above configuration, when steering the vehicle, the rotating means rotates the transducer in conjunction with the steering mechanism so as to transmit and receive ranging signals in the steering direction, and the transceiver is connected to the transducer. Send ranging signal. The transducer that receives the ranging signal emits the ranging signal in the steering direction of the vehicle, and the transducer receives the ranging signal that hits an obstacle and is reflected.1. The ranging signal received by the transducer is transmitted to the transceiver. Furthermore, the alarm device issues an alarm when the ranging signal received by the transceiver satisfies a predetermined alarm condition. Further, when the vehicle is traveling straight, the transducer emits a ranging signal to the front of the vehicle, detects an obstacle in front of the vehicle, and issues a warning in the same manner as described above.
[実施例]
以下、図面を参照して本発明の好適な実施例を説明する
。[Embodiments] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
車両用衝突警報装置10は、第1図に示すように車体1
1に搭載されており、該車体11は前輪12.13及び
後輪14.15により支持されている。そして、前輪1
2.13は、図示しないギアなどを介してハンドル16
に連結されておリミハンドル16を回転することにより
操舵し得るようになっている。また、車両用衝突警報装
置10は車体11の前方に回動自在な送受波器17を備
えており、該送受波器17は電波、音波、光等を用いた
指向性の狭い測距信号を送受し得るようになっている。The collision warning system 10 for a vehicle includes a vehicle body 1 as shown in FIG.
The vehicle body 11 is supported by front wheels 12.13 and rear wheels 14.15. And front wheel 1
2.13 is connected to the handle 16 via a gear (not shown), etc.
The steering wheel can be steered by rotating the limit handle 16. Further, the vehicle collision warning system 10 is equipped with a rotatable transducer 17 in front of the vehicle body 11, and the transducer 17 transmits a narrow-directional ranging signal using radio waves, sound waves, light, etc. It is now possible to send and receive.
なお、100は測距信号の指向性を示すものである。更
に、送受波器1・7は回動手段18に連結されており、
該回動手段18はハンドル16の回転に連動して送受波
器17を前輪12゜13の操舵角(θ)と同じ角度(θ
)へ回動するようになっている。そして、該送受波器1
7は測距信号を送受信する送受信器19に連結されてお
り、該送受信器19は障害物81又は82が所定距離に
接近した場合に警報を発する警報器20に接続されてい
る。Note that 100 indicates the directivity of the ranging signal. Further, the transducers 1 and 7 are connected to a rotating means 18,
The rotating means 18 moves the transducer 17 at the same angle (θ) as the steering angle (θ) of the front wheels 12°13 in conjunction with the rotation of the handle 16.
). Then, the transducer 1
7 is connected to a transceiver 19 that transmits and receives ranging signals, and the transceiver 19 is connected to an alarm 20 that issues an alarm when an obstacle 81 or 82 approaches a predetermined distance.
次いで、本実施例の作用について説明する。Next, the operation of this embodiment will be explained.
車両が直進する場合、送受信器19は送受波器17へ障
害物82までの距離をnするためのn1距信号(送信信
号)を送り、該送受信器19からの測距信号を受信する
送受波器17は指向性の狭い測距信号を前方へ発射する
。そして、該送受波器l7から発射された測距信号が障
害物82に当たって反射すると、反射した測距信号は送
受波器17に受信され、送受波器17は送受信器19へ
測距信号(受信信号)を送る。すると、送受信器19は
測距信号の送信信号と受信信号との差異により送受波器
17から障害物82までの距離を計算して警報器20へ
送出する・。それから、警報器20は送受信器19から
入力される距離情報すなわち送受波器17から障害物8
2までの距離が所定のしきい値をより短くかつ送受波器
17から障害物82までの距離の変化率が所定の変化率
より大きくなった場合に音声等による警報を発して運転
者に障害物82の接近を警告する。When the vehicle travels straight, the transceiver 19 sends an n1 distance signal (transmission signal) to the transceiver 17 to determine the distance to the obstacle 82, and transmits and receives the distance measurement signal from the transceiver 19. The device 17 emits a ranging signal with narrow directivity forward. When the ranging signal emitted from the transducer 17 hits the obstacle 82 and is reflected, the reflected ranging signal is received by the transducer 17, and the transducer 17 sends the ranging signal (receiver) to the transducer 19. signal). Then, the transceiver 19 calculates the distance from the transducer 17 to the obstacle 82 based on the difference between the transmitted distance measurement signal and the received signal, and sends it to the alarm 20. Then, the alarm device 20 receives the distance information inputted from the transceiver 19, that is, from the transducer 17 to the obstacle 8.
2 is shorter than a predetermined threshold value and the rate of change in the distance from the transducer 17 to the obstacle 82 is greater than the predetermined rate of change, an audio warning is issued to alert the driver. Warns of the approach of object 82.
また、車両の進行方向を変える場合、例えば運転者がハ
ンドル16を回して前輪12.13を直進方向よりθだ
け操舵した場合、回動手段18はハンドル1Gの回転に
連動して送受波器18をθだけ回動し、該送受波器18
から発射されるall距信号の指向方向をθだけ回動す
る。そして、前述同様の動作により、操舵方向の障害物
81を検知して警報を発する。この際、車両の前方に障
害物82があっても前輪12.13がθだけ操舵されて
おり、車両は操舵方向に旋回するため、障害物82は車
両の走行の障害とならず、衝突警報装置10は該障害物
82に感応して誤警報を発することはない。Further, when changing the traveling direction of the vehicle, for example, when the driver turns the steering wheel 16 to steer the front wheels 12.13 by θ from the straight forward direction, the turning means 18 moves the transducer 18 in conjunction with the rotation of the steering wheel 1G. is rotated by θ, and the transducer 18
The pointing direction of the all distance signal emitted from the base is rotated by θ. Then, by the same operation as described above, an obstacle 81 in the steering direction is detected and a warning is issued. At this time, even if there is an obstacle 82 in front of the vehicle, the front wheels 12, 13 are steered by θ and the vehicle turns in the steering direction, so the obstacle 82 does not become an obstacle to the vehicle's running, and the collision warning is issued. The device 10 will not issue a false alarm in response to the obstruction 82.
なお、上述実施例においては、送受波器17は車体11
の前方に1個だけ配設さていたが、これに限らず、第2
図に示すように車体11の前方両端部分に送受波器17
a、17bを配設してもよい。このようにすると、車体
11の幅と等しい幅で障害物を検知し、車両の走行軌跡
上の端にわずかに突出している障害物を容易に検知する
ことができる。In addition, in the above-mentioned embodiment, the transducer 17 is connected to the vehicle body 11.
Only one was placed in front of the
As shown in the figure, a transducer 17 is installed at both front ends of the vehicle body 11.
a, 17b may be provided. In this way, an obstacle can be detected with a width equal to the width of the vehicle body 11, and an obstacle slightly protruding from the end of the vehicle's travel trajectory can be easily detected.
また、第3図に示すように、2個の送受波器17a、1
7bを切替器21により障害物の検出遅れを生じない程
度の速い周期で交互に切り替えて送受信器19に接続す
るようにしてもよい。In addition, as shown in FIG. 3, two transducers 17a and 1
7b may be connected to the transmitter/receiver 19 by being alternately switched by the switch 21 at a fast enough period to avoid a delay in detecting an obstacle.
以上説明したように、この発明によると、送受波器を回
動自在に支持すると共に、送受波器が指向性の狭いa>
+圧信号を送受するように構成し、また車両のステアリ
ング機構に連動して操舵方向に測距信号を送受するよう
に送受波器を回動する回動手段を設け、該回動手段によ
り操舵方向に回動された送受波器により車両の操舵方向
の障害物までの距離を測るように構成したので、操舵方
向の障害物のみを検知し、データ量が多量になることを
防止して、高速かつ高度なデータ処理を行うことなしに
障害物が検知でき、これにより装置を簡素化できると共
に信頼性を確保したままコストダウンを図ることができ
る。As explained above, according to the present invention, the transducer is rotatably supported, and the transducer has narrow directivity a>
The transducer is configured to transmit and receive + pressure signals, and is provided with a rotating means for rotating the transducer so as to transmit and receive distance measurement signals in the steering direction in conjunction with the steering mechanism of the vehicle, and the rotating means allows the steering to be performed. The system is configured to measure the distance to obstacles in the steering direction of the vehicle using a transducer rotated in the direction of the vehicle, so only obstacles in the steering direction are detected, preventing the amount of data from increasing. Obstacles can be detected without the need for high-speed, sophisticated data processing, making it possible to simplify the device and reduce costs while maintaining reliability.
また、送受波器を車両の前方両端部分に1個ずつ備える
と、車体の幅と等しい幅で障害物を検知して、車両の走
行軌跡上の端にわずかに突出している障害物も容易に検
知することができる。In addition, if one transducer is installed at each front end of the vehicle, it will be able to detect obstacles with a width equal to the width of the vehicle, making it easy to detect obstacles that slightly protrude at the edges of the vehicle's travel path. Can be detected.
更に、車両の前方両端部分に1個ずつ配設された送受波
器を送受信器へ交互に切り替えて接続する切替器を備え
ると、2個の送受波器を交互に使用して、データ量が増
加することを防止できる。Furthermore, if a switch is provided that alternately connects the transducer to the transceiver, one at each end of the front end of the vehicle, the amount of data can be reduced by using the two transducers alternately. This can be prevented from increasing.
第1図は、本発明の車両用衝突警報装置を示す概略図、
第2図及び第3図は、本発明の車両用衝突警報装置を示
す概略図である。
10 ・・・ 車両用衝突警報装置
16 ・・・ ステアリング機構
17 ・・・ 送受波器
18 ・・・ 回動手段
19 ・・・ 送受信器
O・・・ 警報器
21 ・・・ 切替器FIG. 1 is a schematic diagram showing a collision warning system for a vehicle according to the present invention, and FIGS. 2 and 3 are schematic diagrams showing a collision warning system for a vehicle according to the present invention. 10... Vehicle collision warning device 16... Steering mechanism 17... Transmitter/receiver 18... Rotating means 19... Transmitter/receiver O... Alarm device 21... Switching device
Claims (3)
測距信号を送受する送受波器と、 該送受波器に結合して測距信号を送受信する送受信器と
、 該送受信器が出力する障害物までの距離情報が所定警報
条件を満足した場合に警報を発出する警報器と、を備え
て成る車両用衝突警報装置において、 前記送受波器を回動自在に支持すると共に、前記送受波
器が指向性の狭い測距信号を送受するように構成し、 また、前記車両のステアリング機構に連動して操舵方向
に測距信号を送受するように前記送受波器を回動する回
動手段を設け、 該回動手段により操舵方向に回動された送受波器により
車両の操舵方向の障害物までの距離を測るように構成し
たことを特徴とする車両用衝突警報装置。(1) A transducer that transmits and receives a ranging signal for measuring the distance to an obstacle in the forward direction of the vehicle, a transducer that is coupled to the transducer and transmits and receives the ranging signal, and the transceiver A vehicle collision warning device comprising: an alarm that issues an alarm when output distance information to an obstacle satisfies predetermined alarm conditions; The transducer is configured to transmit and receive ranging signals with narrow directivity, and the transducer is rotated so as to transmit and receive ranging signals in the steering direction in conjunction with a steering mechanism of the vehicle. 1. A collision warning system for a vehicle, comprising a moving means, and a transducer rotated in the steering direction by the rotating means to measure a distance to an obstacle in the steering direction of the vehicle.
設した請求項(1)記載の車両用衝突警報装置。(2) The collision warning system for a vehicle according to claim (1), wherein one of the transducers is disposed at each of the front end portions of the vehicle.
受波器を前記送受信器へ交互に切り替えて接続する切替
器を設けた請求項(2)記載の車両用衝突警報装置。(3) The collision warning system for a vehicle according to claim (2), further comprising a switch that alternately switches and connects the transceiver to the transceiver, one of which is disposed at each front end portion of the vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1028225A JPH02206783A (en) | 1989-02-07 | 1989-02-07 | Collision alarm device for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1028225A JPH02206783A (en) | 1989-02-07 | 1989-02-07 | Collision alarm device for vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02206783A true JPH02206783A (en) | 1990-08-16 |
Family
ID=12242670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1028225A Pending JPH02206783A (en) | 1989-02-07 | 1989-02-07 | Collision alarm device for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02206783A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS517892A (en) * | 1973-10-26 | 1976-01-22 | Tokyo Shibaura Electric Co | |
JPS58154683A (en) * | 1983-01-27 | 1983-09-14 | Nippon Denso Co Ltd | Detector of obstacle |
JPS6017474B2 (en) * | 1982-10-29 | 1985-05-02 | 株式会社野島組 | Abrasive material manufacturing equipment |
JPS62277586A (en) * | 1986-05-26 | 1987-12-02 | Fuji Heavy Ind Ltd | Steering angle decision device for automobile |
-
1989
- 1989-02-07 JP JP1028225A patent/JPH02206783A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS517892A (en) * | 1973-10-26 | 1976-01-22 | Tokyo Shibaura Electric Co | |
JPS6017474B2 (en) * | 1982-10-29 | 1985-05-02 | 株式会社野島組 | Abrasive material manufacturing equipment |
JPS58154683A (en) * | 1983-01-27 | 1983-09-14 | Nippon Denso Co Ltd | Detector of obstacle |
JPS62277586A (en) * | 1986-05-26 | 1987-12-02 | Fuji Heavy Ind Ltd | Steering angle decision device for automobile |
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