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    • 82. 发明申请
    • Absolute velocity measuring device
    • 绝对速度测量装置
    • US20070090991A1
    • 2007-04-26
    • US11443195
    • 2006-05-31
    • Tokuji YoshikawaHiroshi KurodaSatoru KuragakiToshiyuki Nagasaku
    • Tokuji YoshikawaHiroshi KurodaSatoru KuragakiToshiyuki Nagasaku
    • G01S13/58G01S13/60
    • G01S13/589G01S13/60H01Q1/3233
    • In a configuration of a technique in the related art, since two Doppler sensors are used to measure velocity in two directions, and a set of transmission circuit and reception circuit are provided for each of directions to be measured, a device becomes large and expensive. Moreover, in the related art, since signal processing is performed by using output of each of the two Doppler sensors, axis adjustment in each of emission directions of the two Doppler sensors needs to be performed separately, therefore there is a difficulty that appropriate axis adjustment is complicated and difficult. An absolute velocity measuring device is mounted in a vehicle, and includes a transceiver for transmitting and receiving a wave, a transmission-wave branch section that branches a unidirectional wave transmitted from the transceiver in a plurality of directions, and converges reflected waves of waves branched in the plurality of directions from the ground into the unidirectional wave to be received by the transceiver, and a signal processing section that obtains a signal based on a reflected wave that has been received from the transceiver, and processes the obtained signal and thus calculates a plurality of kinds of behavioral information of the vehicle, and then outputs the relevant behavioral information.
    • 在现有技术的结构中,由于使用两个多普勒传感器来测量两个方向上的速度,并且为每个测量方向设置一组发送电路和接收电路,因此设备变大并且昂贵。 此外,在现有技术中,由于通过使用两个多普勒传感器中的每一个的输出来执行信号处理,因此需要分开进行两个多普勒传感器的发射方向的各轴的调整,因此难以适当的轴线调整 是复杂而困难的。 绝对速度测量装置安装在车辆中,并且包括用于发送和接收波的收发器,在多个方向上分支从收发器发送的单向波的发送波分支部分,并且使波分支的波的反射波收敛 在从地面到由收发器接收的单向波的多个方向上,以及信号处理部,其基于从收发器接收到的反射波获得信号,并且处理所获得的信号,从而计算出 车辆的多种行为信息,然后输出相关的行为信息。
    • 89. 发明授权
    • Automotive radar system
    • 汽车雷达系统
    • US06825756B2
    • 2004-11-30
    • US10419793
    • 2003-04-22
    • Jie BaiHiroshi Kuroda
    • Jie BaiHiroshi Kuroda
    • B60Q100
    • G01S13/931G01S2013/9325G01S2013/9342G01S2013/9346G01S2013/9353G01S2013/9375
    • The invention provides a radar system, which can increase a crossrange detection speed in the lane change state by employing a steering angle sensor, etc. loaded on a vehicle without providing additional hardware. A lane-change determining unit receives a yaw rate response from a steering angle sensor, etc., and determines whether the radar-loaded vehicle is in the steering operation for lane change. If the radar-loaded vehicle is in the lane change state, a gain setting unit shifts a tracker gain to a larger value than that in ordinary running, and calculates a range, a crossrange, a relative velocity, etc. relative to a target from the results of tracker processing executed by a filtering unit. By using the calculated range, crossrange, relative velocity, etc., a control determining unit determines whether there is a collision risk, and whether steering operation to avoid a collision is required. If there is a collision risk, a forward collision warning and a control signal for actuating automatic braking are issued. If automatic steering to avoid a collision is required, an automatic steering control signal is issued. When the lane change state is completed, the radar system is returned to the state employing a tracker gain for the ordinary running.
    • 本发明提供了一种雷达系统,其可以通过采用加载在车辆上的转向角传感器等而不增加额外的硬件来增加车道变化状态下的交叉检测速度。 车道变更确定单元从转向角传感器等接收横摆率响应,并且确定雷达负载车辆是否处于车道变换的转向操作中。 如果雷达负载车辆处于车道改变状态,则增益设定单元将跟踪器增益转移到比正常行驶中更大的值,并且计算相对于目标的范围,交叉范围,相对速度等 由过滤单元执行的跟踪器处理的结果。 通过使用所计算的范围,交叉范围,相对速度等,控制确定单元确定是否存在碰撞风险,以及是否需要避免碰撞的转向操作。 如果存在碰撞风险,则发出前向碰撞警告和用于启动自动制动的控制信号。 如果需要自动转向以避免碰撞,则发出自动转向控制信号。 当车道改变状态完成时,雷达系统返回到采用用于普通运行的跟踪器增益的状态。
    • 90. 发明授权
    • Distance measuring device
    • 距离测量装置
    • US06703967B1
    • 2004-03-09
    • US10069593
    • 2002-02-27
    • Hiroshi KurodaKazuaki TakanoMitsuru Nakamura
    • Hiroshi KurodaKazuaki TakanoMitsuru Nakamura
    • G01S1338
    • G01S13/348G01S13/536G01S13/584G01S13/931G01S2013/462G01S2013/9375
    • From a transmitter (18) and a transmission antenna (10), a first frequency signal having a fixed frequency is transmitted for a predetermined time or more, a second frequency signal having a certain frequency difference from the first frequency signal is transmitted for a predetermined time or more, and a third frequency signal having a frequency difference twice the frequency distance from the first frequency signal is transmitted for a predetermined time or more. Reflected waves from objects under measurement at the respective transmission frequencies are supplied to a reception antenna (11), a mixer (12), an analog circuit unit (13), an A/D converter (14), an FFT (15) and a signal processing unit (16). Then, the Doppler frequencies are measured for the reflected waves, objects under measurement are separated and detected at each Doppler frequency, and objects under measurements having the same Doppler frequency are separated to identify a plurality of objects under measurement from phase information and amplitude information of received signals acquired at each transmission frequency. In this manner, when there are a plurality of objects under measurement which are substantially equal in relative speed, these can be separated from each other and detected.
    • 从发送器(18)和发送天线(10)发送具有固定频率的第一频率信号预定时间或更长时间,将具有与第一频率信号的一定频率差的第二频率信号发送到预定的 时间以上,并且具有与第一频率信号的频率距离的两倍的频率差的第三频率信号被发送预定时间或更长时间。 在各个传输频率处的被测物体的反射波被提供给接收天线(11),混频器(12),模拟电路单元(13),A / D转换器(14),FFT(15)和 信号处理单元(16)。 然后,对于反射波测量多普勒频率,在每个多普勒频率下分离检测被测物体,并且分离具有相同多普勒频率的测量对象,以便从相位信息和振幅信息的相位信息和振幅信息中识别测量中的多个对象 在每个传输频率处获取的接收信号。 以这种方式,当有多个测量对象在相对速度上基本相等时,可以彼此分离并检测。