Abstract: A positioning method and device based on multi-sensor fusion are provided and relates to object positioning field. The method includes obtaining sensor data collected by various sensors on a movable object in real time; temporally and spatially synchronizing sensor data collected by the sensors to form various temporally and spatially synchronized sensor data; performing data preprocessing and correlation on the temporally and spatially synchronized sensor data to form to-be-jointly-optimized sensor data; obtaining state information at each time point before a current time point in a preset sliding window; and determining a current pose state of the movable object by performing a joint optimization according to the to-be-jointly-optimized sensor data and the state information at each time point before the current time point in the sliding window. The movable object can be accurately positioned in scenarios where GPS signals are lost, jumping exists, or LiDAR observation is degraded seriously.

Abstract: Techniques for performing multi-sensor calibration on a vehicle are described. A method includes obtaining, from each of at least two sensors located on a vehicle, sensor data item of a road comprising a lane marker, extracting, from each sensor data item, a location information of the lane marker, and calculating extrinsic parameters of the at least two sensors based on determining a difference between the location information of the lane marker from each sensor data item and a previously stored location information of the lane marker.

Abstract: A flap slat control lever and a method for operating the lever are disclosed. The lever includes: a first displacement sensor to detect a displacement of the flap slat control lever and generate a first displacement detection signal; a second displacement sensor to detect the displacement of the flap slat control lever and generate a second displacement detection signal; a first control command module to receive the first displacement detection signal; and a second control command module to receive the second displacement detection signal, wherein the first control command module is in a standby state and the second control command module is in a working state.

Abstract: A method for recommending pick-up locations is provided. The method may include one or more of the following operations. A start location may be obtained from a requester terminal. One or more candidate pick-up locations may be determined based on the start location and historical data. The historical data may include one or more historical start locations within a threshold distance from the start location. Location information of the one or more candidate pick-up locations may be obtained. One or more recommended pick-up locations may be selected among the one or more candidate pick-up locations based on the location information of the one or more candidate pick-up locations. The one or more recommended pick-up locations may be transmitted to the requester terminal.

Abstract: Methods, systems, and computer readable media may be operable to wireless hotspot activity of one or more access points supporting multiple radios. A DHCP relay agent may receive a DHCP request from a device seeking to join a hotspot service provided through a gateway. If the number of currently connected devices is less than the maximum connected device limit, then the agent may increase the number of currently connected devices by one, and relay the encapsulated DHCP request over a GRE tunnel. If the number of connected devices already meets or exceeds the allowed limit, then the DHCP relay agent may instruct the gateway or its access point to disconnect the new device.

Abstract: Event processing associated with a smart device is disclosed, including: receiving an indication of an event detected by a function module associated with a smart device; determining, based at least in part on event registration information, that an event message is to be sent to a cloud device; and sending the event message to the cloud device. Event processing associated with a smart device also includes: receiving an indication of an event detected by a first function module associated with a smart device; determining, based at least in part on event registration information, that a control message is to be sent to a second function module associated with the smart device; and sending the control message to the second function module associated with the smart device.

Abstract: The present disclosure relates to systems and methods for determining at least one recommended search strategy for a user query. The method may include receiving the user query including at least one first segment from a terminal device; obtaining a plurality of search strategies matching the user query, each search strategy including at least one second segment; obtaining a text similarity determination model adapted to incorporate an attention mechanism; for each of the plurality of search strategies, determining a similarity score between a first vector representing the user query and a second vector representing the search strategy based on the text similarity determination model, at least one of the first vector or the second vector being associated with an attention weight of each corresponding segment; and determining the at least one recommended search strategy based on the similarity scores among the plurality of search strategies.

Abstract: A device includes at least one electrically conductive structure and at least one stripline. The stripline includes stripline sections that are connected to one another in a series connection between a first terminal and a second terminal. A first subset of the stripline sections is arranged on a first side of the conductive structure and a second subset of the stripline sections is arranged on a second side of the conductive structure. The device also includes at least one conductive connection between the first subset of the stripline sections and the second subset of the stripline sections, wherein the at least one conductive connection is isolated from the at least one electrically conductive structure.

Abstract: A method for online to offline services is provided. The method may include one or more of the following operations. A transportation service request may be received. The transportation service request may include a target address query from a user terminal. Whether the target address query is directed to a target area of interest (AOI) may be determined. At least one target point of interest (POI) and a target semantic description associated with the target AOI may be obtained from an AOI database. The at least one target POI and the target semantic description may be sent to the user terminal.

Abstract: A method for naming a pickup location may include obtaining a location pair associated with a user from a terminal, the location pair including a current location and a pickup location. The method may also include determining a first and a second preliminary POIs based on the location pair and a target POI database. The method may further include determining a feature of the first preliminary POI and a feature of the second preliminary POI. The method may also include obtaining a trained naming model for naming a pickup location and determining a first score for the first preliminary POI and a second score for the second preliminary POI. The method may further include determining a final POI based on the first score and the second score, and determining a name of the pickup location based on the final POI.

Abstract: Establishing a connection is disclosed including acquiring an authentication code, sending data including the authentication code to a management server, receiving parameter information sent back by the management server after the management server performed a successful authentication using the data including the authentication code, and establishing, using the parameter information, a channel to a connection server.

Abstract: A circuit includes a first power transistor stage internally configured to function as a voltage-controlled current source, a second power transistor stage having an input impedance which varies as a function of input power and an interstage matching network coupling an output of the first power transistor stage to an input of the second power transistor stage. The interstage matching network is configured to provide impedance inversion between the input of the second power transistor stage and the output of the first power transistor stage. The impedance inversion provided by the interstage matching network transforms the first power transistor stage from functioning as a voltage-controlled current source to functioning as a voltage-controlled voltage source at the input of the second power transistor stage.

Abstract: Devices including a transistor having a parasitic capacitance between a control terminal and a load terminal of a first type are provided. Furthermore, the devices include advantageously arranged inductances which are electromagnetically coupled to one another and are configured at least partly to compensate for an effect of the parasitic capacitance in a range around a resonant frequency.

Abstract: Methods, systems, and computer readable media may be operable to wireless hotspot activity of one or more access points supporting multiple radios. A DHCP relay agent may receive a DHCP request from a device seeking to join a hotspot service provided through a gateway. If the number of currently connected devices is less than the maximum connected device limit, then the agent may increase the number of currently connected devices by one, and relay the encapsulated DHCP request over a GRE tunnel. If the number of connected devices already meets or exceeds the allowed limit, then the DHCP relay agent may instruct the gateway or its access point to disconnect the new device.

Abstract: A method for naming a pickup location may include obtaining a location pair associated with a user from a terminal, the location pair including a current location and a pickup location. The method may also include determining a first and a second preliminary POIs based on the location pair and a target POI database. The method may further include determining a feature of the first preliminary POI and a feature of the second preliminary POI. The method may also include obtaining a trained naming model for naming a pickup location and determining a first score for the first preliminary POI and a second score for the second preliminary POI. The method may further include determining a final POI based on the first score and the second score, and determining a name of the pickup location based on the final POI.

Abstract: The present invention relates to a collaborative optimization method for bus timetables based on big data, which belongs to the technical field of urban bus operation and management. Bus GPS data, IC card data and line station data are fused together to provide real-time operation data for the formulation of bus timetables, and a bus timetable optimization model considering transfer between buses and rail transit lines is proposed. In the model, by taking the departure interval of each time period as a decision variable and taking the minimum total system cost as an objective function, the waiting time cost of non-transfer passengers, the waiting time cost of transfer passengers, and the operation cost of bus operation enterprises are comprehensively considered. By means of the present invention, passenger flow data are acquired through multisource data fusion, a large number of manpower is saved, and the accuracy of data is increased.

Abstract: A method and an apparatus for obtaining a depth image by using a time-of-flight sensor may generate a depth image based on a plurality of images in which a motion blur area caused by a movement of an object was corrected. In this case, since the motion blur area is corrected after an initial phase difference of emitted light is compensated, an accuracy of the depth image may be enhanced.

Abstract: Techniques for utilizing two or more mobile devices equipped with projectors to generate a combined seamless user interfaces by stitching projection areas generated by the projectors.

Abstract: A device includes at least one electrically conductive structure and at least one stripline. The stripline includes stripline sections that are connected to one another in a series connection between a first terminal and a second terminal. A first subset of the stripline sections is arranged on a first side of the conductive structure and a second subset of the stripline sections is arranged on a second side of the conductive structure. The device also includes at least one conductive connection between the first subset of the stripline sections and the second subset of the stripline sections, wherein the at least one conductive connection is isolated from the at least one electrically conductive structure.

Abstract: Systems and methods for liquid detection are disclosed. An illustrative method for liquid detection herein may include implementing CT imaging and XRD imaging on one or more liquid planes of liquid contained in a container at once by rotating the container so that X-rays from a same radiation source scan a whole area of each of the one or more liquid planes, and generating a substance identification result for the liquid contained in the container based on a CT image and a XRD image, wherein the CT imaging and the XRD imaging are implemented on a same liquid plane or different liquid planes. Consistent with various aspects and features, implementations may identify substances contained in the liquid more quickly and accurately.