基于超声波倒车雷达-外文翻译.docx

用超声波传感器组装成车辆换向雷达[中文1400字]

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编号:6099469    类型:共享资源    大小:19.04KB    格式:RAR    上传时间:2017-11-16 上传人:闰*** IP属地:河南
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超声波传感器 组装 车辆 换向 雷达 中文
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用超声波传感器组装成车辆换向雷达[中文1400字],超声波传感器,组装,车辆,换向,雷达,中文
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中文 1400 字.ULTRASONIC SENSOR ASSEMBLY FOR A VEHICLE REVERSING RADAR(原文2)A distance measurement and monitoring equipment, equipment automotive mobile anti-radar consists of: a camera is a wide-angle lens installed in the rear of the car the pictures possible obstacles behind the car body; calculate the horizontal distance of the distance measuring inductance two lateral corner of the body an obstacle; and a power supply power photoelectric coupler camera distance measuring inductance, and display. The obstacle is a mirror image processing, and then forwarded to the image of an image synthesizer, transferred to a video processor and a display as shown. A reverse gear signal is a valid signal to trigger the power.The design usually involves car reverse radar, especially II distance measurement and monitoring device equipped car anti-radar, which is available to ultrasonic measurement method for measuring the distance between the car body and an obstacle and show that they have displayed, convenient security commutation.The internal structure of the ultrasonic generator the two piezoelectric chip and a resonance board. When its poles plus pulse signal, whose frequency is equal to the natural oscillation frequency of the piezoelectric wafer and the piezoelectric wafer will occur resonance, and driven by the vibration of the resonance plate, they generate ultrasound. Conversely, if no voltage is applied between the two electrodes, when the resonant plate receives the ultrasonic, will stress the piezoelectric wafer as a vibration of the mechanical energy is converted to an electric signal, it becomes an ultrasonic receiver.Ultrasonic detecting circuit, the transmission side to obtain the output pulse as a series of square-wave, its width for transmitting ultrasound and receiving ultrasonic time interval, the greater the distance of the measured object, the larger the pulse width, the output pulse number of the measured distance into proportional.Relatively driving through the back of the mirror, the driver is still inevitable at certain angles to deceive death may occasion ally incurred pimple or abrasions. Therefore, the car in reverse for on-street parking is considered to be neither too big nor less - a veteran of the small challenges at peak times, and it is especially a big trouble to improvements, revealed three monitors mounted on the side of the car and the rear side, respectively, in order to eliminate any possible dead when the monitor by selecting a different picture reversed. However, the reference to distract drivers busy monitoring before and after the switch, and to help the deterioration of the situation in the real world, but under the general views.The main object of the design is to provide a distance measuring and monitoring device equipped automobile mobile joint anti-radar video synthesis technology awareness and distance measuring inductance, eliminating any dead ends when browsing through the mirror behind the car body behind a driver to see clearly, and the other see digitized distance display on the one hand to ensure a safe commutation.Another object of the design is to provide a distance measurement and monitoring equipment, equipment automotive mobile anti-radar, you can display the temperature and no driver through the barrier. In order to achieve the control object, from the design of the monitoring device equipped automobile reverse radar contains: optocoupler camera with a wide-angle lens camera can be installed in the rear of the car to see the obstacles behind the car body.The human ear can hear sound frequencies of 20Hz 20kHz, audible sound waves in this frequency range, beyond the frequency range of sound, called the low-frequency sound called ultrasonic sound above 20kHz frequency usually speak range 100Hz 8kHz.Ultrasonic mode of transmission is the straight line, the higher the frequency, the diffraction capability weaker, but more reflective ability, ultrasonic sensors made of this nature is the use of ultrasonic waves. In addition, the speed of propagation of ultrasound in the air is relatively slow, is about the 1107-ft (332-m) / s, this ultrasound characteristics, we can easily produce an ultrasonic reversing radar.Ultrasonic sensors have a transmitting probe and the receiving probe, but an ultrasonic sensor may have the dual role of the transmitting and receiving acoustic wave element is reversible. Ultrasonic sensors sold on the general market dedicated and dual-purpose, dedicated is the transmitter used to send ultrasonic receiver for receiving ultrasonic; dual-purpose transmitter and receiver as one of the sensors can send ultrasonic, but also receives ultrasonic. The resonance frequency (center frequency) of the ultrasonic sensor, 23kHz, 40kHz, 75kHz, 200kHz, 400kHz. Resonant frequency becomes high, the detection distance becomes short, decomposition of force also becomes high, and this design, we use a frequency of 40 kHz.With the rapid development of science and technology, ultrasonic in reverse radar field application is more and more widely. But due to the limitation of technology and cost, the application of ultrasonic measuring distance is still very limited, therefore, in the ultrasonic distance measurement field is full of business opportunities and vitality, the future in the reverse radar application will be more and more widely. In the car of the future design, ultrasonic distance measurement instrument as a new technology in various aspects will have the very big development space, the future it will be towards high positioning, high precision, low power consumption, high stability of the development direction, in order to meet the growing demand of the society. Ultrasonic development trend for basic:作者:Shili-Hsiung Li ;Hangchow ;国籍:USA出处:United States Patent 用超声波传感器组装成车辆换向雷达(译文2)一个距离测量和监控设备装备汽车移动反雷达的组成包括:一个照相机一个广角镜头安装在一辆汽车的后部拍照可能的障碍背后的汽车体;距离测量电感的计算横向距离两个横向角落的车身和一个障碍;和一个电源电源光电耦合器的摄像机、距离测量电感、和显示。图像的障碍是镜像加工,然后转发到一个图像合成器的图像,转移到一个视频处理器和一个显示所示。一个反向齿轮信号是有效的信号触发电源。本设计通常涉及到一个汽车逆向雷达,特别是二世与距离测量和监控设备装备汽车反雷达,这是提供给测量之间的距离汽车车身和一个障碍的超声波测量方法和显示他们已显示,方便安全换向。超声波发生器内部结构有两个压电晶片和一个共振板。当它的两极外加脉冲信号,其频率等于压电晶片的固有振荡频率时,压电晶片将会发生共振,并带动共振板振动,便产生超声波。反之,如果两电极间未外加电压,当共振板接收到超声波时,将压迫压电晶片作振动,将机械能转换为电信号,就成为超声波接收器。在超声探测电路中,发射端得到输出脉冲为一系列方波,其宽度为发射超声与接收超声的时间间隔,被测物距离越大,脉冲宽度越大,输出脉冲个数与被测距离成正比。本设计的主要对象是提供一个距离测量和监控设备装备汽车移动反雷达联合视频合成技术的认识和距离测量电感,使一个司机看清楚情况汽车车身后面从而消除任何死角当浏览通过后面的镜子,另一方面看到数字化距离显示器,以确保一个安全的换向。另一个对象的设计是提供一个距离测量和监控设备装备汽车移动反雷达,可以显示温度并通过障碍显示有没有司机。为了实现监控对象,距离监控装置装备汽车逆向雷达的设计包含:一个光电耦合器相机用广角镜头安装在一辆汽车的后部拍照可以看清障碍背后的汽车体; 人耳能听到的声音频率为20Hz20kHz,在此频率范围内的声波可听,如果
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