WO2019033872A1 - 一种车载超声波雷达 - Google Patents

一种车载超声波雷达 Download PDF

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Publication number
WO2019033872A1
WO2019033872A1 PCT/CN2018/094859 CN2018094859W WO2019033872A1 WO 2019033872 A1 WO2019033872 A1 WO 2019033872A1 CN 2018094859 W CN2018094859 W CN 2018094859W WO 2019033872 A1 WO2019033872 A1 WO 2019033872A1
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controller
ultrasonic
vehicle
radar
mode
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PCT/CN2018/094859
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English (en)
French (fr)
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闫志光
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闫志光
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M29/00Scaring or repelling devices, e.g. bird-scaring apparatus
    • A01M29/16Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
    • A01M29/18Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves using ultrasonic signals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88Sonar systems specially adapted for specific applications
    • G01S15/93Sonar systems specially adapted for specific applications for anti-collision purposes

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  • Exemplary embodiments of the present invention relate to the field of electronic product technologies, and in particular, to an in-vehicle ultrasonic radar.
  • the parking sensor is a safety aid for parking or reversing a car. It can inform the driver of the obstacles around the vehicle with a sound or a more intuitive display. It can release the driver's parking, reversing and starting the vehicle. The trouble caused and help the driver to eliminate the use of blind spots and blurred vision, improve the safety of driving.
  • the car repeller uses a sounder to emit sound waves of a specific frequency for repeller. At present, there is no device that can simultaneously have an auxiliary parking and eviction function.
  • the present invention provides an in-vehicle ultrasonic radar which has both an assisted parking and an eviction function.
  • an in-vehicle ultrasonic radar including an in-vehicle power supply, an operation mode switching device, an ultrasonic sensor, an alarm device, and a controller; the vehicle-mounted power supply provides an operating voltage to the controller; The mode switching device, the ultrasonic sensor and the alarm device are all connected to the controller; the ultrasonic sensor is mounted on the front, the rear, and the left and right sides of the automobile body; the controller is pre-configured with two working modes, two working The modes are anti-collision radar mode and eviction animal mode.
  • the ultrasonic sensor detects an obstacle around a vehicle body and transmits the detected information to the controller, and the controller controls the The alarm device works.
  • the onboard ultrasonic radar further includes a detecting device connected to the controller, the detecting device being mounted on the front, the rear, and the left and right sides of the automobile body.
  • the detecting device detects an animal within a certain distance around the vehicle and transmits a detection signal to the controller, the controller controls the ultrasonic wave
  • the ultrasonic transmitter in the sensor emits an ultrasonic signal.
  • the controller switches the collision avoidance radar mode and the eviction animal mode according to the received signal of the operation mode switching device.
  • the operation mode switching device employs a mode change switch or a vibration sensor.
  • the present invention has the beneficial effects that the present invention can automatically and flexibly switch between the anti-collision radar mode and the eviction animal mode.
  • the invention not only can prevent collision, enhance the safety during parking or parking, but also can detect all kinds of creatures such as rats, cats and dogs, and can be detected according to the distance between the creatures such as rats, dogs and dogs. Adjusting the power and frequency of the transmitted ultrasonic waves has a good driving effect.
  • FIG. 1 is a schematic diagram of a circuit structure of a vehicle-mounted ultrasonic radar according to an exemplary embodiment of the present invention.
  • 1-car power supply 2-operating mode switching device; 3-detecting device; 4-ultrasonic sensor; 5-alarm device; 6-controller.
  • the present invention provides an in-vehicle ultrasonic radar including an in-vehicle power source 1, an operation mode switching device 2, a detecting device 3, an ultrasonic sensor 4, an alarm device 5, and a controller 6.
  • the vehicle power supply 1 supplies the operating voltage to the controller 6.
  • the operation mode switching device 2, the detecting device 3, the ultrasonic sensor 4, and the alarm device 5 are all connected to the controller 6.
  • Both the detecting device 3 and the ultrasonic sensor 4 are mounted on the front, rear and left and right sides of the vehicle body.
  • Two working modes are preset in the controller 6, and the two working modes are an anti-collision radar mode and an eviction animal mode.
  • the controller 6 controls the operation of the ultrasonic sensor 4.
  • the ultrasonic sensor 4 detects an obstacle around the vehicle body and transmits the detected information to the controller 6, and the controller 6 calculates the distance between the vehicle body and the obstacle based on the received detection information.
  • the controller 6 compares the calculated distance data with a preset distance threshold. If the calculated distance data is less than the preset distance threshold, the controller 6 controls the alarm device 5 to give an alarm prompt to prompt the driver to perform the corresponding operation.
  • the operation mode switching device 2 can employ a mode change switch or a vibration sensor or the like.
  • the operation mode switching device 2 transmits a mode switching request signal to the controller 6.
  • the controller 6 switches the operation mode to the eviction animal mode in response to the mode switching request signal.
  • the controller 6 controls the detection device 3 to operate.
  • the detecting device 3 detects an animal within a certain distance around the vehicle and transmits a detection signal to the controller 6, and the controller 6 controls the ultrasonic transmitter in the ultrasonic sensor 4 to emit an ultrasonic signal based on the received signal. Ultrasonic signals are used to expel animals that appear around the vehicle.
  • the ultrasonic sensor 4 is used to detect the distance between the animal and the vehicle appearing around the vehicle in real time, and transmits the detected distance information to the controller 6.
  • the controller 6 sorts and compares the received distance information. If the detected distance value becomes smaller and smaller, the controller 6 increases the output power of the ultrasonic sensor 4 through the power amplifier and adjusts the output frequency of the ultrasonic wave to achieve the eviction of the animal. The purpose; otherwise, the controller 6 controls to turn off the ultrasonic sensor 4.
  • the alarm device 5 employs a voice alarm and a liquid crystal display.
  • the voice alarm is used to voice alarm the distance information between the obstacle around the vehicle and the vehicle.
  • the liquid crystal display is used to display distance information between an obstacle around the vehicle and the vehicle.
  • the detecting device 3 may employ an infrared sensor or the like.
  • the ultrasonic sensor 4 includes a housing and a piezoelectric wafer, a damping block, an electrode, a protective film, and a tuning coil disposed in the housing; the piezoelectric wafer is used to implement acoustic-electric conversion, and the damping block is used to absorb acoustic energy.
  • the damping is increased, the electrode is used to realize the connection between the piezoelectric wafer and the cable, the protective film is used to protect the piezoelectric wafer and the waveform is converted, and the tuning coil is used to achieve the best matching between the ultrasonic sensor 4 and the corresponding external instrument.
  • the piezoelectric wafer is made of any one or more of lead zirconate titanate ceramics, lead titanate ceramics, barium titanate ceramics, lithium niobate single crystals, lithium iodate single crystals, quartz single crystals, and the like.
  • the vehicle-mounted ultrasonic radar of the present invention transmits the signal to the controller 6 by setting the operation mode switching device 2, and the controller 6 can automatically and flexibly switch between the two modes of operation, the collision avoidance radar mode and the eviction animal mode.
  • the ultrasonic sensor 4 can detect obstacles around the vehicle, prevent collisions, and enhance safety during parking or parking.
  • the detecting device 3 and the ultrasonic sensor 4 can detect organisms such as rats, dogs and dogs, and have various detection methods, and can comprehensively and accurately detect and control microorganisms such as rats, dogs and dogs.
  • the device 6 can control the power of the ultrasonic wave emitted by the ultrasonic sensor 4 according to the distance of the biological distance of the vehicle such as a rat, a cat, and the like, has a good driving effect, and does not cause harm to the human body or interfere with animals passing farther.
  • the disclosed apparatus may be implemented in other manners.
  • the exemplary embodiments of the apparatus described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the present exemplary embodiment.
  • each functional unit in each exemplary embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Acoustics & Sound (AREA)
  • Birds (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

一种车载超声波雷达,包括车载电源(1)、工作模式切换装置(2)、超声波传感器(4)、报警装置(5)和控制器(6);车载电源(1)为控制器(6)提供工作电压;工作模式切换装置(2)、超声波传感器(4)和报警装置(5)均与控制器(6)连接;超声波传感器(4)安装在汽车车身的前面、后面以及左右侧面上;控制器(6)中预设有两种工作模式,两种工作模式分别为防撞雷达模式和驱逐动物模式。该超声波雷达不仅能够防止发生碰撞,增强泊车或停车时的安全性,还能够对鼠类和猫狗等生物进行全方位、精确地探测,并能够根据鼠类和猫狗等生物距离车辆的远近调节所发射的超声波的功率和频率,具有良好的驱赶效果。

Description

一种车载超声波雷达 技术领域
本发明示例性实施方式涉及电子产品技术领域,具体涉及一种车载超声波雷达。
背景技术
随着人们生活水平的提高,越来越多的家庭拥有了私家车。泊车对于新手来说无疑是最头疼的事。倒车雷达是汽车泊车或者倒车时的安全辅助装置,其能以声音或者更为直观的显示告知驾驶员驾驶车辆周围障碍物的情况,能够解除驾驶员泊车、倒车和起动车辆时前后左右探视所引起的困扰,并帮助驾驶员扫除使用死角和视线模糊的缺陷,提高驾驶的安全性。然而,车辆熄火停放时常会有老鼠等小动物从汽车底盘进入到发动机舱中对电气线路造成损坏。车载驱鼠器使用发声器发出特定频率的声波进行驱鼠。目前,还没有一种能够同时具有辅助泊车和驱逐功能的装置。
发明内容
为了解决现有技术存在的上述问题,本发明提供了一种车载超声波雷达,其同时具有辅助泊车和驱逐功能。
本发明的其他特性和优点将通过下面的详细描述变得显然,或部分地通过本发明的实践而习得。
根据本发明的示例性实施方式,提供一种车载超声波雷达,包括车载电源、工作模式切换装置、超声波传感器、报警装置和控制器;所述车载电源为所述控制器提供工作电压;所述工作模式切换装置、超声波传感器和报警装置均与所述控制器连接;所述超声波传感器安装在汽车车身的前面、后面以及左右侧面上;所述控制器中预设有两种工作模式,两种工作模式分别为防撞雷达模式和驱逐动物模式。
根据本发明的一种示例性实施方式,所述防撞雷达模式下,所述超声波传感器探测汽车车身周围的障碍物,并将探测到的信息发送给所述控制器,所述控制器控制所述报警装置工作。
根据本发明的一种示例性实施方式,所述车载超声波雷达还包括探测装置,所述探 测装置与所述控制器连接,所述探测装置安装在汽车车身的前面、后面以及左右侧面上。
根据本发明的一种示例性实施方式,所述驱逐动物模式下,所述探测装置探测车辆周围一定距离内的动物,并将探测信号发送给所述控制器,所述控制器控制所述超声波传感器中的超声波发射器发射超声波信号。
根据本发明的一种示例性实施方式,所述控制器根据接收到的所述工作模式切换装置的信号切换防撞雷达模式和驱逐动物模式。
根据本发明的一种示例性实施方式,所述工作模式切换装置采用模式转换开关或振动传感器。
由于采用以上技术方案,本发明的有益效果为:本发明能够自动、灵活的切换防撞雷达模式和驱逐动物模式这两种工作模式。本发明不仅能够防止发生碰撞,增强泊车或停车时的安全性,还能够对鼠类和猫狗等生物进行全方位、精确地探测,并能够根据鼠类和猫狗等生物距离车辆的远近调节所发射的超声波的功率和频率,具有良好的驱赶效果。
附图说明
为了更清楚地说明本发明示例性实施方式中的技术方案,下面将对示例性实施方式描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些示例性实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是本发明一示例性实施方式提供的一种车载超声波雷达的电路结构示意图。
图中:1-车载电源;2-工作模式切换装置;3-探测装置;4-超声波传感器;5-报警装置;6-控制器。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而,示例实施方式能够以多种形式实施,且不应被理解为限于在此阐述的范例;相反,提供这些示例实施方式使得本发明示例性实施方式的描述将更加全面和完整,并将示例实施方式的构思全面地传达给本领域的技术人员。附图仅为本发明示例性实施方式的示意性图解,并非一定是按比例绘制。图中相同的附图标记表示相同或类似的部分,因而将省略对它们的重复描述。
此外,所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多示例实施 方式中。在下面的描述中,提供许多具体细节从而给出对本发明示例性实施方式的示例实施方式的充分理解。然而,本领域技术人员将意识到,可以实践本发明示例性实施方式的技术方案而省略所述特定细节中的一个或更多,或者可以采用其它的方法、组元、步骤等。在其它情况下,不详细示出或描述公知结构、方法、实现或者操作以避免喧宾夺主而使得本发明示例性实施方式的各方面变得模糊。
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的示例性实施方式的目的,不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
附图中所示的一些方框图是功能实体,不一定必须与物理或逻辑上独立的实体相对应。可以采用软件形式来实现这些功能实体,或在一个或多个硬件模块或集成电路中实现这些功能实体,或在不同网络和/或处理器装置和/或微控制器装置中实现这些功能实体。
如图1所示,本发明提供了一种车载超声波雷达,其包括车载电源1、工作模式切换装置2、探测装置3、超声波传感器4、报警装置5和控制器6。其中,车载电源1为控制器6提供工作电压。工作模式切换装置2、探测装置3、超声波传感器4和报警装置5均与控制器6连接。探测装置3和超声波传感器4均安装在汽车车身的前面、后面以及左右侧面上。控制器6中预设两种工作模式,两种工作模式为防撞雷达模式和驱逐动物模式。
汽车启动后,产生振动,工作模式切换装置2将采集到的振动信号发送给控制器6,控制器6根据接收到的振动信号将工作模块式切换至防撞雷达模块式。在防撞雷达模块式下,控制器6控制超声波传感器4工作。超声波传感器4探测汽车车身周围的障碍物,并将探测到的信息发送给控制器6,控制器6根据接收到的探测信息计算出车身与障碍物之前的距离。控制器6将计算出的距离数据与预设的距离阈值进行比较,如果计算出的距离数据小于预设的距离阈值,则控制器6控制报警装置5进行报警提示,以提示驾驶员进行相应操作。进一步地,工作模式切换装置2可以采用模式转换开关或振动传感器等。
汽车停泊时,不产生振动。如果一段时间检测不到振动信号,则工作模式切换装置2向控制器6发送模式切换请求信号。控制器6响应模式切换请求信号,将工作模式切换至驱逐动物模式。在驱逐动物模式下,控制器6控制探测装置3工作。探测装置3对车辆周围一定距离内的动物进行探测,并将探测信号发送给控制器6,控制器6根据接收到的信 号控制超声波传感器4中的超声波发射器发射超声波信号。超声波信号用于驱逐车辆周围出现的动物。另外,超声波传感器4用于实时检测车辆周围出现的动物与车辆之间的距离,并将检测的距离信息发送给控制器6。控制器6对接收到的距离信息进行排序和比较,如果检测的距离值越来越小,则控制器6通过功率放大器增大超声波传感器4的输出功率并调节超声波的输出频率,以达到驱逐动物的目的;否则,控制器6控制关闭超声波传感器4。
上述示例性实施方式中,报警装置5采用语音报警器和液晶显示器。语音报警器用于对车辆周围的障碍物与车辆之间的距离信息进行语音报警。液晶显示器用于显示车辆周围的障碍物与车辆之间的距离信息。
上述示例性实施方式中,探测装置3可以采用红外传感器等。
上述示例性实施方式中,超声波传感器4包括外壳以及设置在外壳内的压电晶片、阻尼块、电极、保护膜和调谐线圈;压电晶片用于实现声电转换,阻尼块用于吸收声能并加大阻尼,电极用于实现压电晶片与电缆的连接,保护膜用于保护压电晶片并进行波形转换,调谐线圈用于实现超声波传感器4与外部相应仪器的最佳匹配。其中,压电晶片采用锆钛酸铅陶瓷、钛酸铅陶瓷、钛酸钡陶瓷、铌酸锂单晶、碘酸锂单晶、石英单晶等中的任一种或几种材料制成。
本发明车载超声波雷达通过设置工作模式切换装置2,工作模式切换装置2将信号发送给控制器6,控制器6能够自动、灵活的切换防撞雷达模式和驱逐动物模式这两种工作模式。本发明处于防撞雷达模式时,超声波传感器4能够探测车辆周围的障碍物,防止发生碰撞,增强泊车或停车时的安全性。本发明处于驱逐动物模式时,探测装置3、超声波传感器4都能够对鼠类和猫狗等生物进行探测,探测方式多样,能够对鼠类和猫狗等生物进行全方位、精确地探测,控制器6能够根据鼠类和猫狗等生物距离车辆的远近控制超声波传感器4发射的超声波的功率,具有良好的驱赶效果,并且不会对人体产生危害或干扰到较远处经过的动物。
在本发明所提供的几个示例性实施方式中,应该理解到,所揭露的装置,可以通过其它的方式实现。例如,以上所描述的装置示例性实施方式仅仅是示意性的,例如, 所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本示例性实施方式方案的目的。
另外,在本发明各个示例性实施方式中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
最后应说明的是:以上各示例性实施方式仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各示例性实施方式对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各示例性实施方式所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各示例性实施方式技术方案的范围。因此,本发明的保护范围应以所述权利要求的保护范围为准。

Claims (6)

  1. 一种车载超声波雷达,其特征在于,它包括车载电源、工作模式切换装置、超声波传感器、报警装置和控制器;所述车载电源为所述控制器提供工作电压;所述工作模式切换装置、超声波传感器和报警装置均与所述控制器连接;所述超声波传感器安装在汽车车身的前面、后面以及左右侧面上;所述控制器中预设有两种工作模式,两种工作模式分别为防撞雷达模式和驱逐动物模式。
  2. 如权利要求1所述的一种车载超声波雷达,其特征在于,所述防撞雷达模式下,所述超声波传感器探测汽车车身周围的障碍物,并将探测到的信息发送给所述控制器,所述控制器控制所述报警装置工作。
  3. 如权利要求1所述的一种车载超声波雷达,其特征在于,所述车载超声波雷达还包括探测装置,所述探测装置与所述控制器连接,所述探测装置安装在汽车车身的前面、后面以及左右侧面上。
  4. 如权利要求3所述的一种车载超声波雷达,其特征在于,所述驱逐动物模式下,所述探测装置探测车辆周围一定距离内的动物,并将探测信号发送给所述控制器,所述控制器控制所述超声波传感器中的超声波发射器发射超声波信号。
  5. 如权利要求1或2或3或4所述的一种车载超声波雷达,其特征在于,所述控制器根据接收到的所述工作模式切换装置的信号切换防撞雷达模式和驱逐动物模式。
  6. 如权利要求1或2或3或4所述的一种车载超声波雷达,其特征在于,所述工作模式切换装置采用模式转换开关或振动传感器。
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CN111016885B (zh) * 2019-12-03 2021-10-08 惠州市德赛西威智能交通技术研究院有限公司 自动泊车车位探测方法、电子雷达系统以及存储介质
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