Satellite based augmentation system and satellite based augmentation method
    1.
    发明授权
    Satellite based augmentation system and satellite based augmentation method 有权
    基于卫星的增强系统和基于卫星的增强方法

    公开(公告)号:US09322919B2

    公开(公告)日:2016-04-26

    申请号:US13813821

    申请日:2011-08-26

    IPC分类号: G01S19/08

    CPC分类号: G01S19/08

    摘要: Provided is a satellite based augmentation system comprising: a threshold value calculation unit which calculates a monitoring threshold value for determining whether or not a value of carrier to noise power density ratio (C/No) at a time when a pseudorange is measured on the basis of a signal from a GPS satellite is proper; and a pseudorange determination unit which determines whether or not the pseudorange has proper accuracy by comparing the C/No value and the monitoring threshold value.

    摘要翻译: 提供了一种基于卫星的增强系统,包括:阈值计算单元,其计算监视阈值,用于确定在测量伪距时的载波噪声功率密度比(C /否)的值 来自GPS卫星的信号是适当的; 以及伪距决定单元,其通过比较C / No值和监视阈值来判断伪距是否具有适当的精度。

    Electromagnetic relay
    2.
    发明授权
    Electromagnetic relay 失效
    电磁继电器

    公开(公告)号:US5041870A

    公开(公告)日:1991-08-20

    申请号:US424166

    申请日:1989-10-20

    IPC分类号: H01H50/04 H01H50/26 H01H50/36

    摘要: An electromagnetic relay with a contact mechanism portion being arranged above an electromagnet portion secured to a base, wherein the electromotive portion is inserted under pressure into the base, is secured, and also, the respective terminals of the contact mechanism portion are inserted under pressure from above into the base and are secured, whereby the electromagnet portion is seucred through the direct pressure insertion thereof into the base, the positional accuracy with respect to the base is increased.

    摘要翻译: 一种具有接触机构部分的电磁继电器,该电磁继电器设置在固定到基座上的电磁体部分上方,其中电动部分在压力下插入到基座中,并且接触机构部分的各个端子也被压入 并且被固定,由此通过将电磁体部分直接压入基座而使电磁体部分紧固,相对于基座的位置精度增加。

    SATELLITE BASED AUGMENTATION SYSTEM AND SATELLITE BASED AUGMENTATION METHOD
    3.
    发明申请
    SATELLITE BASED AUGMENTATION SYSTEM AND SATELLITE BASED AUGMENTATION METHOD 有权
    基于卫星的保卫系统和基于卫星的补偿方法

    公开(公告)号:US20130127661A1

    公开(公告)日:2013-05-23

    申请号:US13813821

    申请日:2011-08-26

    IPC分类号: G01S19/08

    CPC分类号: G01S19/08

    摘要: Provided is a satellite based augmentation system comprising: a threshold value calculation unit which calculates a monitoring threshold value for determining whether or not a value of carrier to noise power density ratio (C/No) at a time when a pseudorange is measured on the basis of a signal from a GPS satellite is proper; and a pseudorange determination unit which determines whether or not the pseudorange has proper accuracy by comparing the C/No value and the monitoring threshold value.

    摘要翻译: 提供了一种基于卫星的增强系统,包括:阈值计算单元,其计算监视阈值,用于确定在测量伪距时的载波噪声功率密度比(C /否)的值 来自GPS卫星的信号是适当的; 以及伪距决定单元,其通过比较C / No值和监视阈值来判断伪距是否具有适当的精度。

    Motor rotation speed controlling apparatus
    4.
    发明授权
    Motor rotation speed controlling apparatus 失效
    电机转速控制装置

    公开(公告)号:US4949393A

    公开(公告)日:1990-08-14

    申请号:US144985

    申请日:1988-01-19

    IPC分类号: H02P7/29

    摘要: The present invention is directed to a motor rotation speed controlling apparatus including a comparator, a detecting circuit for detecting a feedback signal of a motor, a motor driving transistor, and a circuit for changing the level of a constant voltage fed to the comparator. The comparator compares a saw-tooth voltage with a constant voltage and outputs a signal which has a duty cycle corresponding to the result of the comparison. The motor driving transistor drives the motor in response to the output signal from the comparator. To change the duty cycle of the output signal from the comparator, a circuit is used that changes the level of the constant voltage in response to a feedback signal detected by the detecting circuit.

    摘要翻译: 本发明涉及一种电动机转速控制装置,其包括比较器,用于检测电动机的反馈信号的检测电路,电动机驱动晶体管和用于改变馈送到比较器的恒定电压电平的电路。 比较器将锯齿电压与恒定电压进行比较,并输出具有与比较结果相对应的占空比的信号。 电动机驱动晶体管响应于来自比较器的输出信号驱动电动机。 为了改变来自比较器的输出信号的占空比,使用根据由检测电路检测到的反馈信号改变恒定电压的电平的电路。