A notification method includes determining, on the basis of positional information regarding a drone and positional information regarding a plurality of terminals carried by an operator who visually observes and operates the drone and one or more visual observers who visually observe the drone, at least either responsible observation areas, which are areas in which the operator and the one or more visual observers are to visually observe the drone, or responsible observation periods, which are periods for which the operator and the one or more visual observers are to visually observe the drone, and notifying the plurality of terminals of at least either the responsible observation areas or the responsible observation periods.

A method of automatically switching a mode of receiving differential data for driving test and driver training using a mobile station includes the following steps of: after a mobile station installed on a training vehicle is powered on, using a mode of receiving the differential data by a radio station; if the differential data cannot be received within a preset time period under the mode, switching the radio station to a GPRS mode; if the radio station of the mobile station receives failure information, feeding the information back to a back-end server by the mobile station; informing a technician, by the back-end server, to perform troubleshooting, after the radio station failure is eliminated, feeding information back to the mobile station through the back-end server, and switching the mobile station back to the mode of receiving the differential data by the radio station.

An information processing apparatus includes: an acquisition unit configured to acquire pieces of information on position of the information processing apparatus; a receiving unit configured to receive radio waves from a search target apparatus; a calculation unit configured to calculate the position of the search target apparatus using the pieces of information on position of the information processing apparatus acquired at plural points by the acquisition unit and using a distance between the information processing apparatus and the search target apparatus estimated from an intensity of the radio waves received by the receiving unit at each of the plural points; and a notification unit configured to send notification to guide a searcher to the position of the search target apparatus calculated by the calculation unit.

A server, a communication system, and a positioning method based on mobile network thereof are provided. In the method, a first measurement report and a second measurement report are received. The first measurement report is related to a first network performance measurement of a user equipment (UE) with a mobile network and includes first location information of the UE, and the second measurement report is related to a second network performance measurement of the UE with the mobile network. The Second location information of the UE is determined according to a monitoring result obtained from the second measurement report. The monitoring result is related to the signal transmission condition of the UE in the mobile network. The second location information is calibrated according to the first location information. Accordingly, the accuracy of the location of the UE may be improved.

A notification method includes determining, on the basis of positional information regarding a drone and positional information regarding a plurality of terminals carried by an operator who visually observes and operates the drone and one or more visual observers who visually observe the drone, at least either responsible observation areas, which are areas in which the operator and the one or more visual observers are to visually observe the drone, or responsible observation periods, which are periods for which the operator and the one or more visual observers are to visually observe the drone, and notifying the plurality of terminals of at least either the responsible observation areas or the responsible observation periods.

A motor vehicle self-driving method comprises obtaining a first positioning mode and a first driving route; obtaining second vehicle information of a second motor vehicle, where the second vehicle information includes a second positioning mode and a second driving route; determining whether the first driving route overlaps with the second driving route; when the first driving route overlaps with the second driving route, comparing positioning precision of the first positioning mode with positioning precision of the second positioning mode; determining a positioning mode with higher positioning precision in the first positioning mode and the second positioning mode as a target positioning mode; determining a target driving parameter based on the target positioning mode; and controlling the first motor vehicle and the second motor vehicle to drive based on the target driving parameter.

A method for sending correction data and for determining a highly accurate position of a mobile unit includes receiving a reference region that includes the mobile unit, the reference region being determined as a function of a rough position of the mobile unit; determining the correction data as a function of the reference region, the correction data describing a deviation of the rough position from the highly accurate position of the mobile unit; ascertaining a deviation of the correction data from reference correction data, the reference correction data being assigned to the reference region; and sending the correction data to the mobile unit in order to determine the highly accurate position of the mobile unit as a function of the deviation.

Embodiments of this application describe a motor vehicle self-driving method and a terminal device. The method may include obtaining, by a terminal device, vehicle external-environment data of a position of a motor vehicle and initial positioning precision of the motor vehicle. The method may also include determining, by the terminal device, a target driving parameter of the motor vehicle based on the vehicle external-environment data and the initial positioning precision. Furthermore, the method may include controlling, by the terminal device, the motor vehicle to drive based on the target driving parameter. In the embodiments of this application, the terminal device determines the target driving parameter of the motor vehicle based on the vehicle external-environment data and the initial positioning precision. In this way, the target driving parameter varies with the vehicle external-environment data, and further matches an external environment, thereby improving self-driving safety of the motor vehicle.

A tracking system and a method thereof are provided in this disclosure. The tracking method includes steps of: capturing first images of the physical environment by a first electronic device; extracting a plurality of first feature points from the first images; generating a plurality of map points according to the extracted first feature points; building a map of the physical environment according to the map points by the first electronic device; capturing a second image of the physical environment by a second electronic device; extracting second feature points of the second image and transmitting the second feature points to the first electronic device; and estimating a pose of the second electronic device according to the map and the received second feature points by the first electronic device.

A positional measurement system includes: a mobile robot including a global navigation satellite system (GNSS) signal reception unit that receives GNSS signals and calculates a position of the mobile robot based on the GNSS signals, a GNSS signal precision evaluation unit that evaluates positional measurement precision by the received GNSS signals, and a position control unit that moves the mobile robot to a high-precision reception position, where GNSS signals yielding positional measurement precision higher than a first threshold precision can be received; a relative position detection unit that detects a relative position of a target as to the mobile robot situated at the high-precision reception position; and a target position calculation unit that calculates a position of the target based on the calculated position of the mobile robot based on the GNSS signals received at the high-precision reception position, and the relative position.