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公开(公告)号：US20180081039A1
公开(公告)日：2018-03-22
申请号：US15410906
申请日：2017-01-20
发明人： Wei HE , Kaiwen FENG , Chengliang DENG , Yibing LIANG , Bocong LIU , Zhuo CHEN , Yu MA
CPC分类号： G01S7/4861 , G01S7/4808 , G01S17/87 , G01S17/936
摘要： The present application discloses a data acquiring method and apparatus applied to a driverless vehicle. A specific implementation of the method includes: selecting, from at least one laser radar of the driverless vehicle, a laser radar having a highest importance level as a first laser radar; acquiring a start time of a current time window and executing following data processing steps: executing a real-time acquisition and storage operation on point cloud data packets collected by the each of the at least one laser radar after the start time of the current time window; and determining whether any condition in a group of conditions is satisfied; and setting the start time of the current time window to be the current time and continuing to execute the data processing steps, in response to determining that any of the group of conditions is satisfied. This implementation implements the alignment and storage of point cloud data packets collected by at least one laser radar of the driverless vehicle.
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2.发明申请公开(公告)号：US20180321995A1
公开(公告)日：2018-11-08
申请号：US16039151
申请日：2018-07-18
发明人： Yu MA , Weide ZHANG , Wei HE , Haifeng WANG , Yibing LIANG, , Zhuo CHEN
CPC分类号： G06F9/546 , G06F11/3024 , G06F11/3055 , G06F2209/508 , Y10S901/50
摘要： This disclosure discloses a method and apparatus for monitoring a message transmission frequency in a robot operating system. A specific implementation of the method includes: writing to-be-transmitted messages, into a pre-allocated memory; obtaining time points when the to-be-transmitted messages are written into the memory, and recording the time points in a preset time point list; determining a message transmission frequency within a preset time interval based on the time points in the time point list; and comparing the message transmission frequency with a preset message transmission frequency threshold, and generating monitoring information based on a comparing result. This implementation monitors the message transmission frequency of a process to thereby avoid information codes related to monitoring of each application from being added to the application so as to reduce the program debuging cost, and improve the monitoring efficiency.
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3.发明申请公开(公告)号：US20180321994A1
公开(公告)日：2018-11-08
申请号：US16039144
申请日：2018-07-18
发明人： Yu MA , Weide ZHANG , Wei HE , Haifeng WANG , Yibing LIANG , Zhuo CHEN
CPC分类号： G06F9/546 , G06F11/3024 , G06F11/3055 , G06F2209/508 , Y10S901/50
摘要： This disclosure discloses a method and apparatus for monitoring a message transmission frequency in a robot operating system. A specific implementation of the method includes: writing to-be-transmitted messages, into a pre-allocated memory; obtaining time points when the to-be-transmitted messages are written into the memory, and recording the time points in a preset time point list; determining a message transmission frequency within a preset time interval based on the time points in the time point list; and comparing the message transmission frequency with a preset message transmission frequency threshold, and generating monitoring information based on a comparing result. This implementation monitors the message transmission frequency of a process to thereby avoid information codes related to monitoring of each application from being added to the application so as to reduce the program debuging cost, and improve the monitoring efficiency.
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公开(公告)号：US20210293844A1
公开(公告)日：2021-09-23
申请号：US17030838
申请日：2020-09-24
发明人： Hao WANG , Liang WANG , Yu MA
IPC分类号： G01P3/64 , G01S13/931 , G01S13/89
摘要： Embodiments of the present disclosure provide a method and apparatus for determining a velocity of an obstacle, a device, and a medium. An implementation includes: acquiring a first point cloud data of the obstacle at a first time and a second point cloud data of the obstacle at a second time; registering the first point cloud data and the second point cloud data by moving the first point cloud data or the second point cloud data; and determining a moving velocity of the obstacle based on a distance between two data points in a registered data point pair.
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公开(公告)号：US20180077069A1
公开(公告)日：2018-03-15
申请号：US15410629
申请日：2017-01-19
发明人： Chengliang DENG , Wei HE , Kaiwen FENG , Yu MA , Bocong LIU , Zhuo CHEN
IPC分类号： H04L12/851 , H04L12/833 , H04L12/24
摘要： The present application discloses a data flow processing method and apparatus for a data flow system. A specific implementation of the method includes: acquiring a to-be-processed data flow, and determining, according to a data flow processing instruction, at least one data flow processing node corresponding to the to-be-processed data flow and a passing order in which the to-be-processed data flow passes through the at least one data flow processing node; and connecting together the at least one data flow processing node according to the passing order to obtain a data flow processing channel, and importing the to-be-processed data flow to the data flow processing channel for data processing. This implementation improves the utilization of data flow processing nodes and the data flow processing efficiency.
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公开(公告)号：US20180076825A1
公开(公告)日：2018-03-15
申请号：US15410642
申请日：2017-01-19
发明人： Wei HE , Liming XIA , Yu MA , Kaiwen FENG , Yibing LIANG , Zhuo CHEN
IPC分类号： H03M7/30
摘要： The present application discloses a data transmission method and apparatus. A specific implementation of the method includes: receiving to-be-transmitted data sent from an information sending end, and determining a sending coding type of the to-be-transmitted data; determining a receiving coding type of an information receiving end receiving the to-be-transmitted data; converting the to-be-transmitted data from the sending coding type to the receiving coding type using a preset transcoding model, to obtain transcoded transmission data, the transcoding model representing a corresponding relationship between the sending coding type and the receiving coding type; and sending the transcoded transmission data to the information receiving end. This implementation improves the data transmission efficiency.
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