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    • 5. 发明授权
    • Wireless communication device
    • 无线通信设备
    • US08774012B2
    • 2014-07-08
    • US13645501
    • 2012-10-04
    • Masprodenkoh KabushikikaishaDenso Corporation
    • Toru SakamotoMasahiro KuwabaraMinoru Okada
    • H04L12/26
    • H04W24/08
    • A disclosed wireless communication device performing transmission and reception in a time-division manner includes an antenna, a transmission unit, a reception unit, a transmission/reception switchover unit, a first path switchover unit, a directional coupler, a second path switchover unit, a first fault diagnosis unit, and a second fault diagnosis unit. The second fault diagnosis unit causes the second path switchover unit to form a reflection signal input path; causes a second transmission signal level-adjusted for fault diagnosis to be outputted from the transmission unit; acquires a signal level of a reflection signal from the antenna inputted from the directional coupler into the reception unit; and determines whether or not a transmission radio wave is normally emitted from the antenna based on the signal level of the reflection signal.
    • 公开的以时分方式进行发送和接收的无线通信装置包括天线,发送单元,接收单元,发送/接收切换单元,第一路径切换单元,定向耦合器,第二路径切换单元, 第一故障诊断单元和第二故障诊断单元。 第二故障诊断单元使第二路径切换单元形成反射信号输入路径; 使得从发送单元输出用于故障诊断的电平调整的第二发送信号; 获取从定向耦合器输入的天线到接收单元的反射信号的信号电平; 并且基于反射信号的信号电平确定发射无线电波是否正常地从天线发射。
    • 7. 发明授权
    • Wireless communication device using a loopback path for fault diagnosis
    • 无线通信设备使用环回路径进行故障诊断
    • US08929833B2
    • 2015-01-06
    • US13645504
    • 2012-10-04
    • Masprodenkoh KabushikikaishaDenso Corporation
    • Hirotaka NaruseMasahiro KuwabaraMinoru Okada
    • H04B17/00H04W24/06
    • H04W24/06
    • A disclosed wireless communication device includes an antenna for communication, a transmission unit, a reception unit, a transmission/reception switchover unit, a communication control unit, a diagnosis start determination unit, a loopback path forming unit, a reception level determination unit, a reception duration determination unit, and a fault assertion unit. When a loopback path, which inputs a transmission signal outputted from the transmission unit into the reception unit, is formed by the loopback path forming unit, the reception level determination unit detects a signal level of a reception signal received by the reception unit, and determines whether or not the signal level is normal. The reception duration determination unit measures a reception duration of the reception signal in the reception unit, and determines whether or not the reception duration has exceeded a threshold value for abnormality determination.
    • 所公开的无线通信装置包括通信用天线,发送单元,接收单元,发送/接收切换单元,通信控制单元,诊断开始判定单元,环回路径形成单元,接收电平确定单元, 接收持续时间确定单元和故障断言单元。 当从回送路径形成单元形成将从发送单元输出的发送信号输入到接收单元的回送路径时,接收电平确定单元检测由接收单元接收到的接收信号的信号电平,并且确定 信号电平是否正常。 接收持续时间确定单元测量接收单元中的接收信号的接收持续时间,并且确定接收持续时间是否超过用于异常确定的阈值。