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    • 2. 发明授权
    • Gyro compass
    • 陀螺指南针
    • US6131297A
    • 2000-10-17
    • US228026
    • 1999-01-09
    • Kanshi YamamotoShin-ichi KawadaTakeshi HojoMichio Fukano
    • Kanshi YamamotoShin-ichi KawadaTakeshi HojoMichio Fukano
    • G01C19/38G01C19/34
    • G01C19/38
    • To provide a gyro compass for the use of a high speed ship, in a gyro compass of the type having north-seeking means which is applied to support a gyro sphere or gyro case immersed in a liquid in a tank, a substantially first-order lag filter is provided in an azimuth follow-up loop or a damping loop, the substantially first-order lag filter having a time constant T.sub.F which is approximately equal to a ratio C/k.sub.T of the viscosity torque coefficient C to the twisting torque coefficient k.sub.T of the torque produced between the tank and the gyro case. A speed error correcting means has a substantially first-order lag filter having a time constant which is approximately equal to that of the north-seeking means, and is applied to correct the output of azimuth indicator by a speed error correcting angle through the substantially first-order lag filter.
    • 为了提供一种用于使用高速船的陀螺仪罗盘,在具有北寻道装置的类型的陀螺仪罗盘中,所述陀螺仪罗盘被应用于支撑浸入在罐中的液体中的陀螺仪或陀螺仪表壳,基本上一级 滞后滤波器被提供在方位随动回路或阻尼回路中,基本上一阶滞后滤波器具有时间常数TF,其大约等于粘度扭矩系数C与扭转扭矩系数kT的比率C / kT 在油箱和陀螺仪箱之间产生的扭矩。 速度误差校正装置具有基本上一阶滞后滤波器,其具有大致等于寻北装置的时间常数,并且被施加以通过基本上第一个的速度误差校正角校正方位指示器的输出 - 滞后过滤器。
    • 3. 发明授权
    • Gyro compass
    • 陀螺指南针
    • US4879918A
    • 1989-11-14
    • US363408
    • 1988-10-27
    • Takeshi HojoKanshi YamamotoShinichi KawadaKazushige MurabayashiMamoru AkimotoMichio Fukano
    • Takeshi HojoKanshi YamamotoShinichi KawadaKazushige MurabayashiMamoru AkimotoMichio Fukano
    • G01C19/38
    • G01C19/38Y10T74/1254Y10T74/1289
    • A gyro compass having a gyro case incorporating a gyro of which the spin axis is substantially horizontal, a vertical ring disposed around the outer periphery of the gyro case and for rotatably supporting the gyro case around a vertical axis, a follow-up pickup for detecting an angular displacement between the gyro case and the vertical ring around the vertical axis, an accelerometer having an input axis parallel to the spin axis, a vertical torquer mounted on the vertical ring for applying a torque of magnitude proportional to an input signal to the gyro case around the vertical axis, and a control apparatus for receiving an output signal of the accelerometer and for supplying its output to the vertical torquer, in which during a predetermined time after the gyro compass is started to operate, the output signal from the accelerometer is differentiated to produce a differentiation signal which is then supplied to the vertical torquer to reduce a settling time of the north-seeking action.
    • 一种具有陀螺仪的陀螺仪罗盘,其具有旋转轴基本上水平的陀螺仪;围绕陀螺仪壳体的外周设置的垂直环,并且用于围绕垂直轴线可旋转地支撑陀螺仪壳体,用于检测的跟踪拾取器 陀螺仪壳体和垂直轴之间的垂直环之间的角位移,具有平行于旋转轴的输入轴的加速度计,安装在垂直环上的垂直绞盘,用于施加与输入信号成比例的扭矩扭矩到陀螺仪 围绕垂直轴的壳体,以及用于接收加速度计的输出信号并将其输出提供给垂直托盘的控制装置,其中在陀螺罗盘开始运行之后的预定时间内,来自加速度计的输出信号为 分化以产生分化信号,然后将其分配给垂直绞盘,以减少寻北动作的稳定时间 n。
    • 4. 发明授权
    • Antenna directing apparatus
    • 天线导向装置
    • US5517204A
    • 1996-05-14
    • US27224
    • 1993-03-05
    • Takao MurakoshiTakeshi HojoKanshi YamamotoKazuteru SatoKoichi UmenoYoshinori KamiyaKazuya AraiMutumi TakahashiYasuke Kosai
    • Takao MurakoshiTakeshi HojoKanshi YamamotoKazuteru SatoKoichi UmenoYoshinori KamiyaKazuya AraiMutumi TakahashiYasuke Kosai
    • H01Q1/18H01Q3/00
    • H01Q1/18Y10T74/1221
    • An antenna having a central axis is supported on a supporting member which in turn is supported on an azimuth gimbal. The antenna and the supporting member are rotatable around an elevation axis perpendicular to the central axis gimbal is supported on a base and is rotatable around an azimuth axis perpendicular to the elevation axis. A first gyro having an input axis parallel to the elevation axis is secured to the supporting member, and a second gyro having an input axis perpendicular to both the central axis and the elevation angle axis is secured to the supporting member. An accelerometer is provided for outputting a signal representative of an inclination angle of the central axis relative to a horizontal plane. An azimuth transmitter is provided for outputting a signal representative of a rotation angle of the azimuth gimbal around the azimuth axis. The difference between a signal corresponding to the altitude angle of the satellite and the signal of the accelerometer is fed to the torquer of the first gyro, while the output signal of the azimuth transmitter and the signals corresponding to the ship's heading azimuth and a satellite azimuth angle are fed to a torquer of the second gyro to thereby direct the central axis of the antenna to the satellite.
    • 具有中心轴的天线被支撑在支撑构件上,支撑构件又被支撑在方位平衡杆上。 天线和支撑构件可以围绕垂直于中心轴的仰角轴线旋转,万向架被支撑在基座上并且可围绕垂直于仰角的方位角旋转。 具有平行于仰角的输入轴的第一陀螺仪被固定到支撑构件,并且具有垂直于中心轴和仰角轴线的输入轴的第二陀螺仪被固定到支撑构件。 提供加速度计用于输出表示中心轴线相对于水平面的倾斜角度的信号。 提供方位发射器用于输出表示方位角方位角周围的方位角的旋转角度的信号。 对应于卫星的高度角的信号和加速度计的信号之间的差异被馈送到第一陀螺仪的扭矩,而方位角发射机的输出信号和对应于船的航向方位角的信号和卫星方位角 角度被馈送到第二陀螺仪的绞盘,从而将天线的中心轴引导到卫星。
    • 5. 发明授权
    • Attitude and heading reference detecting apparatus
    • 姿态和航向参考检测装置
    • US4831544A
    • 1989-05-16
    • US121873
    • 1987-11-17
    • Takeshi HojoKanshi YamamotoMikio MorohoshiFuyuki Hame
    • Takeshi HojoKanshi YamamotoMikio MorohoshiFuyuki Hame
    • G01C21/16
    • G01C21/16
    • An attitude and heading reference detecting apparatus having three gyros and three acceleometers mounted to a navigation vehicle in such a manner that their input axes are made coincident with principal three axial directions of the navigation object, respectively, a magnetic azimuth sensor, a signal transforming section supplied with the outputs from the three gyros, the outputs from the three accelerometers and the output from the magnetic azimuth sensor, a computing section supplied with the output from the signal transforming section and a signal output section supplied with the output from the computing section, for producing an attitude and heading reference signal and for delivering the same to the outside.
    • 一种姿态和航向参考检测装置,具有三个陀螺仪和三个测量计,其安装在导航车辆上,使得它们的输入轴分别与导航对象的主要三个轴向方向一致,磁方位传感器,信号变换部分 提供三个陀螺仪的输出,来自三个加速度计的输出和来自磁方位传感器的输出,提供有来自信号变换部分的输出的计算部分和被提供有来自计算部分的输出的信号输出部分, 用于产生姿态和航向参考信号并将其传送到外部。
    • 6. 发明授权
    • Navigation apparatus using a global positioning system
    • 导航装置采用全球定位系统
    • US5349531A
    • 1994-09-20
    • US848388
    • 1992-03-09
    • Kazuteru SatoKanshi YamamotoMikio MorohoshiNoriyuki AkabaAtsushi Kawakami
    • Kazuteru SatoKanshi YamamotoMikio MorohoshiNoriyuki AkabaAtsushi Kawakami
    • G01S19/22G01S5/14G01S19/42G01S5/02H04B7/185
    • G01S19/54
    • A navigation apparatus utilizing a global positioning system having at least first and second satellite reception antennas installed on a navigation vehicle with a predetermined distance therebetween, a first azimuth computing unit for computing a first azimuth angle of the navigation vehicle from satellite radio waves received at the first and second antennas and a phase difference therebetween, a second azimuth computing unit for computing a second azimuth angle from a time change of antenna positions calculated from the satellite radio wave received at the first or second reception antenna, first and second multiplying units for multiplying outputs of the first and second azimuth computing units with predetermined coefficients respectively, an adding unit for adding outputs of the first and second multiplying units to produce a third azimuth angle, and a coefficient control unit for varying coefficient values of the first and second multiplying units in accordance with either the satellite arrangement or turning frequency of the navigation vehicle.
    • 一种利用全球定位系统的导航装置,其具有至少安装在导航车辆上的第一和第二卫星接收天线,其间具有预定的距离;第一方位计算单元,用于根据在所述导航车载机上接收的卫星无线电波计算导航车辆的第一方位角; 第一和第二天线和它们之间的相位差,第二方位计算单元,用于根据从在第一或第二接收天线处接收的卫星无线电波计算出的天线位置的时间变化来计算第二方位角;第一和第二乘法单元,用于乘法 第一和第二方位计算单元的输出分别具有预定系数;加法单元,用于将第一和第二乘法单元的输出相加以产生第三方位角;以及系数控制单元,用于改变第一和第二乘法单元的系数值 按照sa 卫星排列或导航车辆的转弯频率。
    • 7. 发明授权
    • Closed loop type fiber optic gyroscope for measuring absolute rotation
by delta serrodyne wave phase modulation
    • 闭环型光纤陀螺仪,用于通过三角波相位调制测量绝对旋转
    • US5781296A
    • 1998-07-14
    • US686365
    • 1996-07-23
    • Kanshi YamamotoShinichi KawadaTakeshi HojoYoshiyuki OkadaIsao Masuzawa
    • Kanshi YamamotoShinichi KawadaTakeshi HojoYoshiyuki OkadaIsao Masuzawa
    • G01C19/72G01C19/64
    • G01C19/726
    • A fiber optic gyro can overcome the defects encountered with conventional fiber optic gyros of phase-modulation method, closed-loop system with serrodyne modulation and digital modulation. A reference phase difference .DELTA..beta. and a ramp phase difference .sigma. are generated in an interference light intensity signal I by use of a triangular waveform, i.e., delta serrodyne waveform signal. The reference phase difference .DELTA..beta. is changed to constant values .DELTA..beta..sub.A and .DELTA..beta..sub.B whose absolute values are the same and whose signs are different at every times T.sub.A and T.sub.B. A phase x of the interference light intensity signal I becomes equal to x=.DELTA..theta.+.sigma.+.DELTA..beta.. The ramp phase difference .sigma. is controlled so as to satisfy .DELTA..theta.+.sigma.=0. Accordingly, at the stable point of the control loop, a Sagnac phase difference .DELTA..theta. is equal to the ramp phase difference .sigma.. Further, a phase x of the interference light intensity signal I does not contain the Sagnac phase difference .DELTA..theta., and hence x=.DELTA..beta.. Also, a fiber optic gyro can eliminate a bias, in particular, optically-generated bias. In a fiber optic gyro of phase-modulation method or delta serrodyne system, a phase controller is supplied with a phase control voltage signal V.sub.S of period T and a square wave signal V.sub.2 of period T for correcting an optical bias caused by an amplitude modulation generated by the phase control voltage signal V.sub.S in the added form. The square wave signal V.sub.2 has a constant magnitude H and is inverted in polarity at points in which the phase control voltage signal V.sub.S is maximized or minimized. The magnitude H and the polarity of the square wave signal V.sub.2 are selected such that an optical bias is minimized.
    • 光纤陀螺可以克服常规光纤陀螺相位调制方法,带有锯齿波调制和数字调制的闭环系统所遇到的缺陷。 在干涉光强度信号I中通过使用三角波形即三角波形波形信号产生参考相位差DELTAβ和斜坡相位差σ。 参考相位差DELTA beta被改变为恒定值DELTA beta A和DELTA beta B,其绝对值相同,每个符号TA和TB的符号不同。 干涉光强度信号I的相位x变为等于x =DELTAθ+ sigma +ΔTATA。 控制斜坡相位差σ以满足DELTAθ+ sigma = 0。 因此,在控制回路的稳定点,Sagnac相位差ΔTATA等于斜坡相位差σ。 此外,干涉光强度信号I的相位x不包含Sagnac相位差DELTAθ,因此x =ΔTATA。 此外,光纤陀螺仪可以消除偏压,特别是光学产生的偏压。 在相位调制方法或三角速度系统的光纤陀螺仪中,相位控制器被提供有周期T的相位控制电压信号VS和周期T的方波信号V2,用于校正由产生的幅度调制引起的光偏置 通过相位控制电压信号VS以相加的形式。 方波信号V2具有恒定的幅度H,并且在相位控制电压信号VS最大化或最小化的点处极性反转。 选择幅度H和方波信号V2的极性使得光偏置最小化。
    • 8. 发明授权
    • Automatic steering apparatus for ships
    • 船用自动转向装置
    • US4336594A
    • 1982-06-22
    • US154397
    • 1979-08-28
    • Isao MasuzawaKanshi YamamotoYoichi Hirokawa
    • Isao MasuzawaKanshi YamamotoYoichi Hirokawa
    • G05D1/00B63H25/04G05D1/02G06G7/78
    • G05D1/0206
    • The present invention relates to an automatic steering apparatus for ships which prevents the occurrence of directional instability due to unusual phenomena which occur at small rudder angles of so-called full-bodied ships.When the rudder angle of such ship is small, two stable steady turning conditions occur so that the turning movement cannot assume any single state and it results in a frequent and irregular unstable ship motion. Thus, in accordance with the invention there is provided an automatic steering apparatus of the type in which a command rudder angle signal is produced from a deviation signal representing the difference between a predetermined course and the ship's heading by means of a operational circuit and a rudder angle servomechanism, wherein a compensating circuit is provided before the operational circuit and the gain of the compensating circuit is increased when the deviation signal is in the small range, thus preventing any unstable ship motion of the ship and thereby preventing the occurrence of directional instability.
    • PCT No.PCT / JP78 / 00070 Sec。 371日期1979年8月28日 102(e)日期1979年8月24日PCT提交1978年12月27日PCT公布。 公开号WO79 / 00447 日本1979年7月26日。本发明涉及一种用于船舶的自动转向装置,其防止由于所谓的全身船的小方向舵角发生的异常现象而发生方向不稳定性。 当这种船的方向舵角小时,发生两个稳定的稳定转弯条件,使得转弯运动不能承受任何单一状态,并导致船舶运动频繁和不规则的不稳定。 因此,根据本发明,提供了一种自动转向装置,其中通过借助于操作电路和方向舵从表示预定行程和船舶航向之间的差异的偏差信号产生指令方向舵角度信号 角度伺服机构,其中当偏差信号处于小范围内时,在操作电路之前提供补偿电路并且补偿电路的增益增加,从而防止船舶的不稳定的船舶运动,从而防止定向不稳定性的发生。