Abstract: A motion compensation method and apparatus applicable to laser point cloud data includes acquiring laser point cloud data of a frame; using an acquisition time of a start point as a target time; interpolating coordinate transformation relations and an end laser point, to obtain coordinate transformation relations of other laser points, and transforming coordinates of the other laser points to the coordinates at the target time. During motion compensation on each frame of laser point cloud data, the coordinate transformation relations corresponding to only the start and end laser points are obtained, and the coordinate transformation relations corresponding to the two points are interpolated to obtain transformation relations corresponding to other laser points, thus performing motion compensation. Therefore, the processing speed is improved and meets high real-time requirements on systems such as autopilot control systems.

Abstract: 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.

Abstract: The present disclosure discloses a quantum-dot display substrate, a method for preparing the same, and a display panel. The quantum-dot display substrate includes a substrate and a plurality of light emitting sub-pixels disposed on the substrate, in which each of the light emitting sub-pixels includes a quantum-dot light emitting layer, and the quantum-dot light emitting layer includes a crosslinked network formed by crosslinking quantum dots having a crosslinkable ligand with a crosslinking agent.

Abstract: The present application discloses a method and device for establishing communication connection. An embodiment of the method includes: selecting a predetermined number of servers from a server cluster to form a backup server cluster, the server cluster including at least one server adapted to implement a given service; obtaining communication information of each backup server in the backup server cluster, and selecting a backup server from the backup server cluster as a master server based on the communication information of the backup server; and sending the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment. The embodiment solves a problem of reliability raised when main server abnormally quits or restarts during the operation of a system.

Abstract: The present application is directed to a method for registering with a service layer. The method includes the step of forming a registration group of one or more applications. The method also includes a step of receiving a request to join the registration group, from the one or more applications based upon a review of criteria. The method also includes a step of receiving a registration preference from the one or more applications. Further, the method includes the step of performing service discovery on a network based upon the registration preference of the one or more applications in the registration group. The present application is also directed to a device for registering with a service layer. The present application is further directed to a computer-implemented method for moving from a current service layer to a new service layer.

Abstract: Embodiments of the present disclosure provide a method, a device and a vehicle for message deduplication. The method includes: determining a node relationship with each publishing node by a subscribing node based on property information of the publishing node under the same topic as the subscribing node; determining a communication mode with each publishing node according to the node relationship; registering management modules corresponding to different communication modes according to the communication modes, so that after receiving a service message from the publishing node, a management module determines which subscribing nodes the service message is transmitted to based on a registration content and a unique identification of the publishing node carried in the service message. The service message may be transmitted to the corresponding subscribing node based on the registration content specifying the publishing node from which the service message is received under a certain communication mode.

Abstract: The present disclosure provides an method, an apparatus, a device and a storage medium for controlling an unmanned vehicle, where the method includes: receiving control messages transmitted by at least two automatic driving physical apparatuses, where the control messages include indication information; determining an optimal control message according to the indication information in each of the control messages; transmitting the optimal control message to a device for controlling an unmanned vehicle, so that the device for controlling an unmanned vehicle performs driving control on the unmanned vehicle according to the optimal control message. When a plurality of automatic driving physical apparatuses transmit control messages, at this time, the control messages are redundant, and a control message can be selected for execution, so that the unmanned vehicle can receive a control signal in time, which is beneficial to the safe driving of the unmanned vehicle.

Abstract: Embodiments of the present disclosure provide a method and a coroutine framework for processing parallel tasks, a device, a medium and an unmanned vehicle. The method includes: switching a current coroutine to a target coroutine in response to a task switching instruction, in which, the coroutine is created at a user layer for processing a task, and the coroutine at the user layer is executed by a thread at a kernel layer; and saving context of a task processed by the current coroutine, and reading context of a task processed by the target coroutine, such that the thread at the kernel layer corresponding to the target coroutine processes the task based on the context of the target coroutine when executing the target coroutine.

Abstract: The present application provides a message transmission method and apparatus, a device and a medium. The method includes: determining and outputting, by an issuing task, a data message, storing the data message in a preset storage space, and sending an issuing notification message; and reading, by a subscription task, the data message from the preset storage space according to the issuing notification message. With embodiments of the present disclosure, transmission efficiency of the data message between the issuing task and the subscription task may be improved, and source occupancy may be reduced.

Abstract: A method for processing vehicle fault, the method includes obtaining, by a first vehicle fault processing device, first data information of a main system of a vehicle in real time, obtaining second data information of the main system sent by a second vehicle fault processing device, and sending the first data information to the second vehicle fault processing device, so that the second vehicle fault processing device performs fault determination on the main system according to the first data information and the second data information; determining, by the first vehicle fault processing device, whether a fault has occurred in the main system according to the first data information and the second data information; and performing, by the first vehicle fault processing device, corresponding control on the vehicle according to a pre-configured control authority if the fault has occurred in the main system.

Abstract: The present disclosure provides a positioning drift detecting method, apparatus, device and computer readable medium, where the method includes: obtaining driving information of a driverless vehicle at a current time point; predicting an estimated driving range of the driverless vehicle at a next time point according to the driving information at the current time point, where there is a preset time interval between the current time point and the next time point; obtaining driving information of the driverless vehicle at the next time point; and determining whether the driving information at the next time point is within the estimated driving range, and performing a corresponding operation according to a determination result. As a result, it is possible to accurately determine whether or not a drift occurs currently, thereby preventing a driving accident of the driverless vehicle and improving a driving safety of the driverless vehicle.

Abstract: The present disclosure provides a method and an apparatus for scheduling a task, a device and a medium. The method includes: obtaining a processing task to be executed from a task queue via a main thread bound to a processor, in which the processor is configured to execute the main thread, to execute the processing task; obtaining a newly triggered processing task; in response to determining that a priority of the newly triggered processing task is greater than or equal to a priority of the processing task executed on the main thread, assigning the newly triggered processing task to a standby thread; and dispatching and assigning a processor from at least one processor through the system kernel to execute the standby thread.

Abstract: Embodiments of the preset disclosure provide a task scheduling method, an apparatus, an electronic device, and a storage medium. The method comprises traversing tasks in a current queue, and obtaining current values of current state information and a frequency parameter for each task that has been traversed, wherein the frequency parameter is a preset parameter for indicating a scheduled frequency of a corresponding task; selecting a task with the minimum scheduled frequency in the tasks having the current state information indicating an executable state as a target task according to the current values of the current state information and the frequency parameter for each task; and executing the selected target task, and updating the current value of the frequency parameter corresponding to the target task after the target task is executed.

Abstract: The embodiments of the present disclosure provide a method, an apparatus, a device and a medium for processing topological relation of tasks. The method includes: extracting at least one execution element from each of processing tasks based on a topological relation recognition rule; determining a dependency relation among the processing tasks according to content of the execution element of each processing task; and determining a topological relation among the processing tasks according to the dependency relation among the processing tasks.

Abstract: The embodiments of the present disclosure provide a method and a device for implementing read-write lock reentry, a terminal and a storage medium. The method includes: receiving a write lock request of a thread to a target resource; in response to determining that the target resource is in a write-lock-exclusive state, acquiring a historical write-lock thread to the target resource that is in the write-lock-exclusive state; in response to determining that the thread is identical to the historical write-lock thread, adding a new lock of the thread to the target resource.

Abstract: Provided are a message processing method, an apparatus, an electronic control unit, and a readable storage medium. The method includes configuring different sending times for any two different electronic control units corresponding to the same message ID in sending time configuration information of electronic control units; and when sending messages to a CAN bus, sending, by the electronic control units, the messages to the CAN bus at available sending times according to corresponding sending time configuration information, so that the time for any two different electronic control units corresponding to the same message ID to send messages to the CAN bus is separated. The method can improve the safety of the unmanned system.

Abstract: The present application is directed to a computer-implemented device and method for performing group-on-group operations over the M2M interface. The device and method includes the step of receiving a request to initiate the group-on-group operation from a device owner including commands of a group resource defined in a uniform resource indicator. The device and method includes the step of processing the request and also a step for sending a group management request API to a management server to execute the commands on the devices. Further, there is a step of receiving a response from the management server indicating execution status of the commands by the device. The application also is directed to a computer-implemented method for establishing group-on-group operation over the M2M interface.

Abstract: Service layer multicast communications management may be achieved via indication by entities of multicast capabilities during service layer registration and self-subscription by the entities to the service layer. The service layer, or a managing application in communication with the service layer, may then maintain resources for multicast configurations, dynamically create multicast groups, and notify members via their self-subscription of the entities in the groups. The service layer may then further fan-out multicast messages, thereby allowing the originator of the multicast message to access recipients in multiple underlying networks without the need to configure communications directly. Fan-out may include unicasts to entities lacking multicast capabilities. Self-subscription may also be used, for example, in granting access control to a third party application.

Abstract: Non-fault disturbance-based method and system for measuring short-circuit capacity of a power grid on site including: connecting or disconnecting a reactive compensation device to or from a power grid point of common coupling, to generate a disturbance on a power grid; obtaining total active power and total reactive power of a load of the point of common coupling before the disturbance; determining a vector difference between a voltage of the power grid point of common coupling before the disturbance and a voltage of the power grid point of common coupling after the disturbance; obtaining a voltage effective value of the power grid point of common coupling before the disturbance; obtaining a capacity of the reactive compensation device; and determining a short-circuit capacity of the point of common coupling according to total active power, total reactive power, vector difference between voltages, voltage effective value, and capacity of the reactive compensation device.

Abstract: Methods and systems may be used to synchronize time across multiple IoT related entities, such as a network of resource constrained sensor and actuator type devices, IoT gateways, IoT cloud services, or IoT applications.