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    • 5. 发明申请
    • NAVIGATION DEVICE AND NAVIGATION METHOD
    • 导航设备和导航方法
    • US20100094537A1
    • 2010-04-15
    • US12518224
    • 2006-12-08
    • Seiji GotoTakuya Tsukada
    • Seiji GotoTakuya Tsukada
    • G01C21/34
    • G01C21/3415B60W2550/402
    • The present invention is to provide a navigation device having a function of starting a route re-searching early by predicting a route change of a vehicle from a recommended route. A navigation device is formed such that when guiding a vehicle by virtue of a recommended approaching route and a recommended exit route both connected to a branching point, and once the vehicle traveling from the recommended approaching route and heading for the branching point is about to deviate from the recommended exit route, said navigation device starts a route re-searching for finding a new recommended route going through other route. The navigation device detects that a turning angle θx of the vehicle is about to be in a direction within an angle range not including an angle formed between the direction θa of the recommended approaching route and the direction θb of the recommended exit route, and starts a route re-searching to find a new recommended route going through other route existing within an angle range excluding an angle formed between the directions θa and θb.
    • 本发明提供一种导航装置,其具有通过从推荐路线预测车辆的路线变化而能够提前开始路线重新搜索的功能。 导航装置形成为使得当通过推荐的接近路线引导车辆时,以及两个连接到分支点的推荐出口路线,并且一旦从推荐的接近路线行驶的车辆和分支点的前进将要偏离 从推荐的出口路线,所述导航装置启动路线重新搜索以找到经过其他路线的新的推荐路线。 导航装置检测到车辆的转向角度& x; x是在不包括在方向和角度之间形成的角度的角度范围内的方向;推荐的接近路线和方向& 出口路线,并开始路线重新搜索,以找到除了在方向和角度之间形成的角度的角度范围内存在的其他路线的新推荐路线; a和&thetas; b。
    • 8. 发明授权
    • Angular velocity detection device
    • 角速度检测装置
    • US06895313B2
    • 2005-05-17
    • US10771154
    • 2004-02-04
    • Seiji ImadaIsao EndoSeiji Goto
    • Seiji ImadaIsao EndoSeiji Goto
    • G01C21/00B60T8/172G01C19/00G01C21/28G05D1/00
    • G01C21/28B60T8/172B60T2210/36B60T2250/03
    • An angular velocity detection device includes an angular velocity detector for delivering a first sensor output corresponding to an angular velocity of a mobile unit; a learning unit for learning a sensitivity coefficient in accordance with the first sensor output and an output provided by a GPS positioning unit; an acceleration detector for delivering a second sensor output corresponding to an acceleration of the mobile unit; a sensitivity coefficient correction unit for determining a corrected sensitivity coefficient in accordance with the sensitivity coefficient and the second sensor output; and an angular velocity converter for multiplying the first sensor output by the corrected sensitivity coefficient to thereby calculate the actual angular velocity of the mobile unit. The angular velocity detection device allows the angular velocity converter to use the corrected sensitivity coefficient to calculate each actual angular velocity of the mobile unit.
    • 角速度检测装置包括角速度检测器,用于传送对应于移动单元的角速度的第一传感器输出; 用于根据第一传感器输出学习灵敏度系数的学习单元和由GPS定位单元提供的输出; 加速度检测器,用于输送对应于所述移动单元的加速度的第二传感器输出; 灵敏度系数校正单元,用于根据灵敏度系数和第二传感器输出确定校正的灵敏度系数; 以及角速度转换器,用于将第一传感器输出乘以校正的灵敏度系数,从而计算移动单元的实际角速度。 角速度检测装置允许角速度转换器使用校正的灵敏度系数来计算移动单元的每个实际角速度。
    • 9. 发明授权
    • Movement condition computing device, method, and program, and recording medium recording said program, and navigation device
    • 运动条件计算装置,方法和程序,以及记录所述程序的记录介质和导航装置
    • US06829525B2
    • 2004-12-07
    • US10423039
    • 2003-04-25
    • Kazuaki TanakaSeiji GotoIsao EndoTatsuya Okamoto
    • Kazuaki TanakaSeiji GotoIsao EndoTatsuya Okamoto
    • G06F700
    • G01C21/12G01C22/00G01P3/50G01P7/00G01P13/00
    • A velocity information acquisition section 21 acquires velocity information on the velocity of a vehicle and records this acquired information in a velocity information recording section 27. A state judgment section 23 judges start and stop states of the vehicle based on state information indicating the start and stop states of the vehicle that was acquired at a state information acquisition section 22. After this judgment, a minimum output velocity computing section 24 accurately computes, based on the velocity information recorded in velocity information recording section 27, a minimum output velocity in a period in which a vehicle velocity detection circuit 10 cannot detect velocity information. A movement condition computing section 25 can appropriately compute a relative movement distance or a relative movement velocity of the vehicle based on the state information acquired at state information acquisition section 22 and the minimum output velocity computed at minimum output velocity computing section 24.
    • 速度信息获取部21获取关于车辆速度的速度信息,并将该取得的信息记录在速度信息记录部27中。状态判断部23基于表示开始和停止的状态信息来判断车辆的起动和停止状态 在状态信息获取部分22中获取的车辆的状态。在该判断之后,最小输出速度计算部分24基于在速度信息记录部分27中记录的速度信息,精确地计算出在时间段内的最小输出速度 车速检测电路10不能检测速度信息。 移动条件计算部25可以基于在状态信息获取部22获取的状态信息和在最小输出速度计算部24计算出的最小输出速度来适当地计算车辆的相对移动距离或相对移动速度。