CN104723966A - 一种汽车后视系统和避让报警装置 - Google Patents

一种汽车后视系统和避让报警装置 Download PDF

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CN104723966A
CN104723966A CN201510139339.4A CN201510139339A CN104723966A CN 104723966 A CN104723966 A CN 104723966A CN 201510139339 A CN201510139339 A CN 201510139339A CN 104723966 A CN104723966 A CN 104723966A
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laser
automobile
warning device
micro controller
controller system
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胡清桂
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
    • 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
    • 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
    • B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
    • 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
    • B60R2300/301—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 other obstacle sensor information, e.g. using RADAR/LIDAR/SONAR sensors for estimating risk of collision
    • 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
    • B60R2300/802—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 and displaying vehicle exterior blind spot views
    • 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
    • B60R2300/806—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 aiding parking
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Traffic Control Systems (AREA)

Abstract

一种汽车后视系统和避让报警装置，包括汽车后视系统和避让报警装置，所述汽车后视系统包括设置在汽车驾驶室内的显示器以及设置在汽车车身后部的摄像头，所述避让报警装置包括激光发射器和激光接收器，以及报警机构，采用了本技术方案后，驾驶员能方便地观察车后的情况，提高行车安全性，当汽车后方有其它汽车追尾即将撞上本车时，避让报警装置会发出报警，提醒驾驶员注意避让。

Description

一种汽车后视系统和避让报警装置
技术领域
本发明涉及汽车安全技术领域，特别涉及一种汽车后视系统和避让报警装置。
背景技术
汽车驾驶员位于驾驶席内的视角是很有限的，通过车内和外侧的反光镜可以大幅度提高驾驶员的视野范围，但位于车正后方的障碍物，以及高度不足以通过反光镜看到的或者距离车身过近的障碍物都可能处于驾驶员的视野死角或者视野模糊区中。
这样，小则对驾驶员的泊车、倒车感到不便，大则也会带来一些危险。为了提高安全性，目前，很多车辆都安装了导航系统以及倒车影像系统，使驾驶员能够更有效、更安全地行车，但这些产品都比较昂贵，而本发明设计了一种汽车后视系统和避让报警装置，成本相对比较低廉，同时，避让报警装置在后方有其它汽车即将撞上本车时会发出报警，提醒驾驶员注意避让，提高行车安全。
发明内容
本发明的目的在于提供种汽一种汽车后视系统和避让报警装置，所述后视系统能够让驾驶员看到车后的情况，所述避让报警装置在后方有其它汽车即将撞上本车时发出报警，提醒驾驶员注意避让，提高行车安全。
为达到上述目的，本发明采用以下技术方案予以实现。
一种汽车后视系统和避让报警装置，包括汽车后视系统和避让报警装置，所述汽车后视系统包括设置在汽车驾驶室内的显示器，设置在汽车车身后部的摄像头，所述的摄像头与所述的显示器之间连接有信号存储转换器，摄像头把汽车后面周围的情况传递给显示器，方便驾驶员观看；
所述避让报警装置包括用于发射激光信号并探测汽车前方障碍物的激光发射器，用于接收汽车前方障碍物反射回来的激光信号的激光接收器，以及报警机构，所述报警机构包括单片机，用于放大激光接收器输出的信号并将该输出信号传输给单片机的激光振荡器，用于根据单片机的输出指令负责语音报警的报警器，所述单片机的I/O输入端分别电连接激光发射器的控制端和激光振荡器的输出端，所述单片机的I/O 输出端电连接报警器的输入端，所述激光发射器为半导体激光发射器，所述单片机采用EM78P458单片机。
本发明采用了上述技术方案后，驾驶员能方便地观察车后的情况，提高行车安全性，当汽车后方有其它汽车追尾即将撞上本车时，避让报警装置会发出报警，提醒驾驶员注意避让。
附图说明
    图1是本发明后视系统的原理示意图。
   图2是本发明避让报警装置的原理示意图
  图3是本发明示意图，在图3中，1是摄像头，2是信号存储转换器，3是显示器，4是激光发射器，5是激光接收器；6是报警机构，报警机构包括单片机、激光振荡器和语音报警器；7是车身。
具体实施方式
下面结合附图和具体实施方式对本发明作进一步描述：
   如图1所示的一种汽车后视系统原理示意图，摄像头能监测到汽车后方的路况信息，该信息为TV信号，经过信号存储转换器转换成VGA信号，然后在显示器上显示，方便驾驶员观看。
参照图3，摄像头1设置在汽车尾部，显示器3设置在车身7内驾驶室，摄像头与显示器通过信号存储转换器2连接，由于摄像头安装在汽车尾部，所以驾驶员可以很方便地通过显示器观察汽车后方情况，提高行车安全。视频摄像技术现在比较成熟，摄像头、显示器以及信号存储转换器这些设备都可以直接购买，这里就不再赘述了。
参照图3，激光发射器4和激光接收器5均安装在汽车尾部，报警机构6安装在汽车驾驶室，报警机构包括单片机、激光振荡器和语音报警器。所述单片机的I/O输入端分别电连接激光发射器的控制端和激光振荡器的输出端，所述单片机的I/O 输出端电连接报警器的输入端，所述激光发射器为半导体激光发射器，所述单片机采用EM78P458单片机。激光发射器为半导体激光发射器，激光的高方性使其能有效地传递较长的距离，而且在雾天或夜间，依然不受影响。
避让报警装置的工作原理如图2所示，
激光发射器受单片机控制，以每秒40次到50次的频率发射激光,每发射一次激光后，激光接收器如果接收到反射激光，被接收的信号通过激光振荡器放大再输入带有A/D转换器的单片机，单片机根据发射激光和接收激光的时间差计算汽车将会发生碰撞的时间T，如果碰撞时间T小于10秒，则启动声音报警器，
上述参数为本实施例采用的具体数据，但是本发明不限于以上数据，也可以根据实际需要进行修改。
将会发牛碰撞的时间T 的计算：激光发射器和激光接收器受单片机控制，激光发射器发射激光束时，激光振荡器开始振荡；激光接收器接收反射回来的激光，接收到的激光信号经过激光振荡器放大后传送到单片机，激光振荡器在接收到激光接收器传输的信号时停止振荡，激光发射器发射激光和激光振荡器振荡计数均由单片机控制，单片机根据激光振荡器振荡计数和振荡周期计算出激光从发射到接收之间的时间差t ，这样，障碍物离汽车的距离S = ct / 2 ，其中c 为光速，设连续两次激光测量的距离分别为S和S’  ，则在这连续两次发射激光时间间隔内，障碍物和汽车距离变化为△S＝S- S’，设激光发射器发射激光频率为f ，则汽车和前方障碍物之间的相对速度为V =△S× f ，进一步地可以计算将会发生碰筛的时间T = S / V，如果碰撞时间T为负值，则不启动自动报警。
尽管以上结合附图对本发明的实施方案进行了描述，但是本发明并不局限于上述的具体实施方案和应用领域，上述的具体实施方案仅仅是示意性的、指导性的，而不是限制性的。本领域的普通技术人员在说明书的启示下，在不脱离本发明权利要求所保护的范围的情况下，还可以做出很多种的形式，这些均属于本发明保护之列。

Claims (4)

1.一种汽车后视系统和避让报警装置，其特征在于：包括汽车后视系统和避让报警装置，所述汽车后视系统包括设置在汽车驾驶室内的显示器，汽车车身后部的摄像头，所述的摄像头与所述的显示器之间连接有信号存储转换器；所述避让报警装置包括用于发射激光信号并探测汽车前方障碍物的激光发射器，用于接收汽车前方障碍物反射回来的激光信号的激光接收器，以及报警机构。
2.根据权利要求1所述的一种汽车后视系统和避让报警装置，其特征在于：所述报警机构包括单片机，用于放大激光接收器输出的信号并将该输出信号传输给单片机的激光振荡器，用于根据单片机的输出指令负责语音报警的报警器，所述单片机的I/O输入端分别电连接激光发射器的控制端和激光振荡器的输出端，所述单片机的I/O 输出端电连接报警器的输入端。
3.根据权利要求1或2所述的一种汽车后视系统和避让报警装置，其特征在于：所述激光发射器为半导体激光发射器。
4.根据权利要求1或2所述的一种汽车后视系统和避让报警装置，其特征在于：
所述单片机采用EM78P458单片机。
CN201510139339.4A 2015-03-28 2015-03-28 一种汽车后视系统和避让报警装置 Pending CN104723966A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107323346A (zh) * 2017-08-14 2017-11-07 无锡市市北高级中学 汽车反光镜死角监测装置
CN108140315A (zh) * 2015-09-28 2018-06-08 福特全球技术公司 增强的后方障碍物检测

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108140315A (zh) * 2015-09-28 2018-06-08 福特全球技术公司 增强的后方障碍物检测
CN108140315B (zh) * 2015-09-28 2022-02-11 福特全球技术公司 增强的后方障碍物检测
CN107323346A (zh) * 2017-08-14 2017-11-07 无锡市市北高级中学 汽车反光镜死角监测装置

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Application publication date: 20150624