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公开(公告)号：US12113885B2
公开(公告)日：2024-10-08
申请号：US17186476
申请日：2021-02-26
发明人： Xiaoling Han , Junjun Xin , Lei Nie , Yue Pan , Yu Zhang , Jade E. Day , Zehua Huang , Esayas Naizghi , Pingyuan Ji , Zhiqi Gong
CPC分类号： H04L7/0016 , G01C21/16 , G01C21/28 , G01S17/931 , G01S19/01 , H04L67/12
摘要： Devices, systems, and methods for hardware-based time synchronization for heterogenous sensors are described. An example method includes generating a plurality of input trigger pulses having a nominal pulse-per-second (PPS) rate, generating, based on timing information derived from the plurality of input trigger pulses, a plurality of output trigger pulses, and transmitting the plurality of output trigger pulses to a sensor of a plurality of sensors, wherein a frequency of the plurality of output trigger pulses corresponds to a target operating frequency of the sensor, wherein, in a case that a navigation system coupled to the synchronization unit is functioning correctly, the plurality of input trigger pulses is generated based on a nominal PPS signal from the navigation unit, and wherein, in a case that the navigation system is not functioning correctly, the plurality of input trigger pulses is generated based on a simulated clock source of the synchronization unit.
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公开(公告)号：US20230286522A1
公开(公告)日：2023-09-14
申请号：US18118899
申请日：2023-03-08
发明人： Pingyuan Ji
IPC分类号： B60W50/023
CPC分类号： B60W50/023 , B60W2720/10 , B60W2720/24 , B60W2420/42 , B60W2420/52
摘要： The present disclosure relates to a vehicle having sensor redundancy. The vehicle includes a sensor system including a first sensor subsystem configured for acquiring environmental information around the vehicle; a second sensor subsystem configured for acquiring environmental information around the vehicle; a computing system configured for sending a control instruction generated based on one of the first sensor subsystem and the second sensor subsystem to a control system according to a state of at least one of the computing system and the sensor system; a control system configured for changing at least one of a direction of travel and a speed of the vehicle based on the control instruction received from the computing system.
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公开(公告)号：US20240001765A1
公开(公告)日：2024-01-04
申请号：US18345156
申请日：2023-06-30
发明人： Chi WANG , Xiaokang HE , Pingyuan Ji
CPC分类号： B60L3/0046 , B60L3/0092 , H02J1/102 , H02J2310/48 , B60L2240/427 , B60L2240/429
摘要： The present disclosure provides a control system, method and device for vehicle redundant power supply. The system comprises: a main power supply circuit comprising a main power supply monitoring module for monitoring the main power supply circuit and generating monitoring information indicating whether a power supply fault exists in the main power supply circuit; and a redundant power supply circuit comprising a redundant power supply monitoring module for monitoring the main power supply circuit and generating monitoring information indicating whether a power supply fault exists in the redundant power supply circuit; and a vehicle control unit connected to the main power supply circuit and the redundant power supply circuit respectively, and configured for determining one of the main power supply circuit and the redundant power supply circuit as a target power supply circuit for vehicle running according to monitoring information.
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公开(公告)号：US20230286538A1
公开(公告)日：2023-09-14
申请号：US18180058
申请日：2023-03-07
发明人： Rui Peng , Yuda Zhang , Pingyuan Ji
IPC分类号： B60W60/00 , B60W50/023 , B60W50/08 , B60W40/02
CPC分类号： B60W60/001 , B60W50/023 , B60W50/08 , B60W40/02 , B60W2556/45
摘要： The present disclosure relates to a monitoring system for a vehicle and a vehicle. The vehicle includes multiple driving modes, and the monitoring system includes: an instruction-generating device configured to generate a control instruction for triggering one driving mode of multiple driving modes of the vehicle, and a communication device configured to send the control instruction to the vehicle so as to trigger the vehicle to travel according to the one driving mode of multiple driving modes.
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公开(公告)号：US11770200B2
公开(公告)日：2023-09-26
申请号：US17096851
申请日：2020-11-12
发明人： Mingbao Zhang , Pingyuan Ji
CPC分类号： H04J3/065 , G01S19/14 , G01S19/256 , G01S19/37 , G04R20/04
摘要： The present disclosure provides an on-board synchronization device. The on-board synchronization device includes: a first circuit and at least one second circuit. The first circuit is configured to receive an initial signal containing Universal Time Coordinated (UTC), generate a first signal containing the UTC, and output the first signal to at least one on-board device, such that the at least one on-board device synchronizes its built-in clock with the UTC based on the first signal. The second circuit is configured to receive a Pulse Per Second (PPS) signal, generate a periodic second signal with a same phase as the PPS signal, and output the second signal or the PPS signal to the at least one on-board device, such that the at least one on-board device performs a predetermined action based on the second signal or the PPS signal.
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公开(公告)号：US11945499B2
公开(公告)日：2024-04-02
申请号：US17210447
申请日：2021-03-23
发明人： Yuyong Wang , Pingyuan Ji
CPC分类号： B62D15/021 , G01S7/53 , G01S17/88 , G06F17/11
摘要： The present disclosure relates to autonomous vehicle technology, and provides a method and an apparatus for trailer angle measurement, as well as a vehicle. With the present disclosure, it can be determined whether to use a single-beam lidar or a multiple-beam lidar for trailer angle measurement based on an initial trailer angle. When it is determined to use the multiple-beam lidar a deflection direction of the semi-trailer can be obtained, and laser light emitted by the multiple-beam lidar on a side of the deflection direction and reflected by a trailer surface can be collected. A coordinate transformation and selection process can be applied on the laser point cloud to form a candidate point cloud. A boundary straight line of the trailer can be determined by means of optimized solution of the candidate point cloud. A trailer angle can be determined based on the boundary straight line of the trailer.
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公开(公告)号：US11845352B2
公开(公告)日：2023-12-19
申请号：US17817957
申请日：2022-08-05
发明人： Xiaokang He , Pingyuan Ji
CPC分类号： B60L53/60 , B60L1/00 , H02J9/066 , H02J9/068 , H02J2310/46 , H02J2310/48 , Y02T90/12
摘要： The present disclosure relates to a power supply control method for a vehicle, a vehicle, a control unit, a computer-readable storage medium and a computer program product. The vehicle comprises an electrical equipment, a relay and a power interface, wherein the power interface is electrically coupled to the electrical equipment via the relay. The method comprises: determining whether the power interface is coupled to an external power source; determining whether a voltage of the external power source is within a predetermined range when the power interface is coupled to the external power source; and controlling the relay to be switched on in response to the voltage of the external power source being within the predetermined range.
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8.发明授权公开(公告)号：US11828828B2
公开(公告)日：2023-11-28
申请号：US17079113
申请日：2020-10-23
发明人： Jian Lu , Pingyuan Ji , Haiquan Li , Jianan Hao
摘要： The present disclosure relates to sensor technology, and provides a method, an apparatus, and a system for vibration measurement for a sensor bracket as well as a movable device. The method is applied in a system for vibration measurement for the sensor bracket. The system includes the sensor bracket to be measured that is mounted on a movable device, and a marker on the sensor bracket to be measured, and a first sensor provided on the sensor bracket to be measured for collecting marker information. The method includes: collecting the marker information of the marker on the sensor bracket to be measured using the first sensor; determining a vibration measurement reference point based on the marker information, and obtaining vibration condition data of the vibration measurement reference point; and determining a vibration evaluation result for the sensor bracket based on the vibration condition data of the vibration measurement reference point.
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