Abstract: 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.

Abstract: The present document relates to a data transmission method, computing equipment, and a storage medium, adapted to be executed in first computing equipment. The data transmission method includes: compressing original images collected by an image collection device to obtain compressed images; packaging one of the compressed image into at least one data packet each including a protocol head and a data segment; sending the at least one data packet to a second computing equipment, so that the second computing equipment determines a resolution corresponding to the image collection device according to scenario information of a scenario where the original images are collected; and in response to the determined resolution being equal or less than a threshold, setting a data segment of a data packet of the other ones of the compressed images corresponding to the image collection device to be null.

Abstract: 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.

Abstract: A method includes: receiving information about a fault type of a sensor; generating an instruction corresponding to the fault type of the target sensor, the instruction including a fault parameter, and the fault parameter including an injection mode of the fault type and a fault occurrence probability; and obtaining target sensor data having the fault type based on the injection mode of the fault type and the fault occurrence probability. In some embodiments, an injection mechanism of the fault types of the target sensors is increased, and the target sensor data corresponding to different scenes are rendered on the basis of the fault types, thus reducing occupation of real test resources.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The disclosure provides a sensor case, a sensor system, and a vehicle, the sensor case including: a backing plate; a first base plate mounted to the backing plate, the first base plate having a first opening configured for the first sensor to pass through; and a protecting component magnetically coupled to the backing plate, the protecting component including a first cover plate positioned above the first base plate and a first gap being defined between the first cover plate and the first base plate. The sensor case of the disclosure can provide waterproof and rainproof functions of a sensor, and has a simple structure, stable performance, convenient opening and closing, and improved cleaning efficiency of the sensor.

Abstract: A data acquisition apparatus and method for determining a pose thereof. The disclosed data acquisition apparatus includes a mounting component and the sensor fixed to the mounting component. The sensor is oriented at a preset pose relative to the ground and configured to scan the surrounding environment of the data acquisition apparatus at a scanning frequency as a vehicle moves on the ground to obtain a sequence of point cloud data frames. The pose allows a coverage of an effective field of view of the sensor on the ground to be continuous across temporally neighboring frames in the sequence of point cloud data frames.

Abstract: 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.

Abstract: An information prompt system and method for a vehicle are provided. The information prompt system includes a vehicle control apparatus, configured to acquire a planned traveling state of the vehicle and control the vehicle to enter the planned traveling state, and further configured to in response to the fact that at least one of the planned traveling state, a vehicle state, a driving mode state and a task state changes, generate a corresponding prompt information generation instruction based on the type of change; an information analysis apparatus, configured to acquire the prompt information generation instruction and determine prompt information according to the prompt information generation instruction; and an information prompt apparatus, configured to display the prompt information.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present disclosure relates to a vehicle. The vehicle includes a first set of cameras, including a first subset of cameras facing to the front of the vehicle; a second set of cameras, with focal lengths less than those of the first set of cameras, the second set of cameras including a second and a third subset of cameras, the second subset of cameras facing to the front of the vehicle, and third subset of cameras facing to a side front and/or a side of the vehicle; and a third set of cameras, with focal lengths less than those of the second set of cameras, the third set of cameras including a fourth and a fifth subset of camera, the fourth subset of cameras facing to the front of the vehicle, and the fifth subset of camera facing to the side front and/or side of the vehicle.

Abstract: The present disclosure relates to intelligent driving technology, and provides a method, device, and system for simulation test. The method includes: retrieving data in a first format for a first sensor from a database; processing the data in the first format to obtain corresponding data in a second format, the second format being a format of data collection of the first sensor; and transmitting the data in the second format to a second computing device capable of performing a simulation test based on the data in the second format. The present disclosure can provide a simulation test solution for an intelligent system by providing a simulation test environment closer to the real-world environment.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.