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1. 发明授权

US11558715B2 Method and apparatus for detecting signal propagation type 有权
公开(公告)号：US11558715B2
公开(公告)日：2023-01-17
申请号：US17270935
申请日：2018-08-31
申请人： Zhuoqi Zeng , Steven Liu , Huajun Yu , Wei Wang , Robert Bosch GmbH
发明人： Zhuoqi Zeng , Steven Liu , Huajun Yu , Wei Wang
IPC分类号： H04W4/029 , G01S5/02 , H04B1/7163
摘要： The present invention relates to a method and apparatus for detecting a signal propagation type. The method comprises: calculating a similarity value of a currently received pulse response and a reference pulse response when a certain positioning base station of a UWB positioning system currently receives a pulse response from a certain positioning tag, the similarity value indicating the degree of similarity between the currently received pulse response and the reference pulse response, wherein the reference pulse response is a pulse response previously received by the positioning base station from the positioning tag; and determining the current type of signal propagation between the positioning base station and the positioning tag on the basis of the similarity value. The method and apparatus can detect the type of signal propagation between the positioning base station and positioning tag of the UWB positioning system.

2. 发明授权

US11500055B2 Detection method and detection apparatus 有权
公开(公告)号：US11500055B2
公开(公告)日：2022-11-15
申请号：US17257965
申请日：2018-07-12
申请人： ROBERT BOSCH GMBH
发明人： Huajun Yu , Zhuoqi Zeng , Wei Wang , Steven Liu
IPC分类号： G01S5/02 , H04W64/00
摘要： The disclosure relates to a detection method and a detection apparatus, the method including: calculating, when a location base station in an ultra-wideband location system receives a pulse response, values of a plurality of specified pulse response characteristics using the received pulse response, and using the calculated values as values of the plurality of specified pulse response characteristics of the location base station; calculating differences between the values of the plurality of specified pulse response characteristics of the location base station and values of the plurality of specified pulse response characteristics of the location base station at a previous time, and using the calculated differences as variations of the plurality of specified pulse response characteristics of the location base station; determining, based on at least the variations of the plurality of specified pulse response characteristics of the location base station and by means of a trained classifier, whether signal propagation in which the location base station participates is non-line-of-sight propagation.

3. 发明授权

US11791911B2 Method and apparatus for detecting signal propagation type 有权
公开(公告)号：US11791911B2
公开(公告)日：2023-10-17
申请号：US17268760
申请日：2018-08-14
申请人： Robert Bosch GmbH
发明人： Zhuoqi Zeng , Steven Liu , Huajun Yu , William Wang
IPC分类号： H04B17/21 , H04B17/27 , H04B17/391 , G01S5/02 , G01S5/00 , G01S13/02
CPC分类号： H04B17/21 , G01S5/011 , G01S5/0218 , G01S5/0294 , H04B17/27 , H04B17/391 , G01S13/0218
摘要： The present invention relates to a method and apparatus for detecting a signal propagation type, the method comprises: when a positioning base station of an ultra-wideband positioning system currently receives a pulse response from a positioning tag, computing an actual value of a specified feature of the received pulse response at least using the received pulse response; selecting, for the specified feature, a predictive model for predicting an adopted value of the specified feature at a future moment on the basis of an adopted value of the specified feature at a historical moment; using the predictive model selected for the specified feature to acquire an adopted value of the specified feature at a future moment, to serve as a predicted value of the specified feature of the received pulse response; and determining the current type of signal propagation between the positioning base station and positioning tag on the basis of the actual value and predicted value of the specified feature of the received pulse response and the predictive model selected for the specified feature. Using the method and apparatus, it is possible to detect the type of signal propagation between the positioning base station and positioning tag of the UWB positioning system.

4. 发明申请

US20210325523A1 METHOD AND APPARATUS FOR DETECTING SIGNAL PROPAGATION TYPE 有权
公开(公告)号：US20210325523A1
公开(公告)日：2021-10-21
申请号：US17268760
申请日：2018-08-14
申请人： Robert Bosch GmbH
发明人： Zhuoqi Zeng , Steven Liu , Huajun Yu , William Wang
IPC分类号： G01S13/02 , G01S5/02 , H04B17/27 , H04B17/21 , H04B17/391
摘要： The present invention relates to a method and apparatus for detecting a signal propagation type, the method comprises: when a positioning base station of an ultra-wideband positioning system currently receives a pulse response from a positioning tag, computing an actual value of a specified feature of the received pulse response at least using the received pulse response; selecting, for the specified feature, a predictive model for predicting an adopted value of the specified feature at a future moment on the basis of an adopted value of the specified feature at a historical moment; using the predictive model selected for the specified feature to acquire an adopted value of the specified feature at a future moment, to serve as a predicted value of the specified feature of the received pulse response; and determining the current type of signal propagation between the positioning base station and positioning tag on the basis of the actual value and predicted value of the specified feature of the received pulse response and the predictive model selected for the specified feature. Using the method and apparatus, it is possible to detect the type of signal propagation between the positioning base station and positioning tag of the UWB positioning system.

5. 发明申请

US20210223351A1 Detection Method and Detection Apparatus 有权
公开(公告)号：US20210223351A1
公开(公告)日：2021-07-22
申请号：US17257965
申请日：2018-07-12
申请人： Robert Bosch GmbH
发明人： Huajun Yu , Zhuoqi Zheng , Wei Wang , Steven Liu
IPC分类号： G01S5/02 , H04W64/00
摘要： The disclosure relates to a detection method and a detection apparatus, the method including: calculating, when a location base station in an ultra-wideband location system receives a pulse response, values of a plurality of specified pulse response characteristics using the received pulse response, and using the calculated values as values of the plurality of specified pulse response characteristics of the location base station; calculating differences between the values of the plurality of specified pulse response characteristics of the location base station and values of the plurality of specified pulse response characteristics of the location base station at a previous time, and using the calculated differences as variations of the plurality of specified pulse response characteristics of the location base station; determining, based on at least the variations of the plurality of specified pulse response characteristics of the location base station and by means of a trained classifier, whether signal propagation in which the location base station participates is non-line-of-sight propagation.

6. 发明申请

US20210211844A1 METHOD AND APPARATUS FOR DETECTING SIGNAL PROPAGATION TYPE 有权
公开(公告)号：US20210211844A1
公开(公告)日：2021-07-08
申请号：US17270935
申请日：2018-08-31
申请人： Robert Bosch GmbH
发明人： Zhuoqi Zeng , Steven Liu , Huajun Yu , Wei Wang
IPC分类号： H04W4/029 , H04B1/7163 , G01S5/02
摘要： The present invention relates to a method and apparatus for detecting a signal propagation type. The method comprises: calculating a similarity value of a currently received pulse response and a reference pulse response when a certain positioning base station of a UWB positioning system currently receives a pulse response from a certain positioning tag, the similarity value indicating the degree of similarity between the currently received pulse response and the reference pulse response, wherein the reference pulse response is a pulse response previously received by the positioning base station from the positioning tag; and determining the current type of signal propagation between the positioning base station and the positioning tag on the basis of the similarity value. The method and apparatus can detect the type of signal propagation between the positioning base station and positioning tag of the UWB positioning system.

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