A guide display system includes: a user terminal; a checkpoint terminal; and a server, in which the server includes: a specifying unit that uses biometric information obtained from the checkpoint terminal to specify person identification information for identifying a user associated with the biometric information; an obtaining unit that obtains date and time information indicating a date and time when the user passed through a checkpoint; a selection unit that selects, based on the obtained date and time information, one or more destinations from destination information indicating a plurality of destinations that are registered in association with the specified person identification information and are the destinations of the user; and a display information generation unit that generates display information for displaying the guide display corresponding to the one or more selected destination on the user terminal.

An approach is provided for detecting lane-level dangerous slowdown events based on probe data and/or sensor data. The approach, for example, involves splitting probe data, sensor data, or a combination thereof into at least one vehicle trajectory, wherein the data is collected from one or more vehicles traveling on a road segment. For each vehicle trajectory of the at least one vehicle trajectory, the approach also involves processing said each vehicle trajectory to detect a slowdown event based on a speed reduction greater than a threshold reduction. The approach further involves classifying a slowdown event type of the slowdown event based on a final driving location, a final driving speed, or a combination thereof of the at least one vehicle trajectory. The approach further involves providing the slowdown event, the slowdown event type, or a combination thereof as an output for the road segment.

A method of generating a scenic rating for segments of an electronic map involves obtaining probe data relating to the movement of a plurality of devices with respect to time in the area, and, for each one of a plurality of segments of the electronic map; identifying a set of positional data relating to the movement of devices along the navigable element represented by the segment, filtering the identified set of positional data relating to the movement of devices along the navigable element represented by the segment based on mode of transport to obtain one or more subset of the identified positional data relating to the movement of devices along the element represented by the segment which may be expected to relate to traversals of the navigable element for recreational purposes, using the or each obtained subset of the positional data to obtain one or more scenicity parameter which may be used in determining a scenic rating for the segment indicative of a scenicity of the navigable element represented by the segment, and using the one or more obtained scenicity parameter to determine a scenic rating for the segment.

The invention relates to a method, performed by at least one apparatus. The method comprises obtaining sample measurements at least in part comprising altitude information and observed in an area at least in part represented by an altitude map, the altitude map comprising sub-sections representing respective sub-areas of the area; The method further comprises determining altitude estimates from the altitude information. The method further comprises updating one or more altitude estimate distributions associated with respective sub-sections of the altitude map based on the determined altitude estimates. The method further comprises determining, for one or more sub-sections of the altitude map, whether a respective sub-section of the altitude map represents a single level sub-area or multilevel sub-area, based on respective altitude estimate distributions associated with respective sub-sections of the altitude map.

Systems and methods utilize an inertial navigation sub-system configured to determine a plurality of relative positions of the navigation system from a reference position based on the determined speed and/or acceleration and/or direction of the navigation system and/or changes thereto; and a position estimator sub-system configured to estimate the absolute position of the navigation system based on at least two received signals. A first track is defined based on the plurality of relative positions determined by the inertial navigation sub-system during a period of time and a second track is defined based on the plurality of estimates of the absolute position by calculating a best fit using the plurality of estimates of the absolute position, where the second track approximates a same shape as the first track.

It is provided a method for supporting localisation of a mobile device based on a localisation map comprising a number of features, wherein each feature comprises location data and geometric characteristics of the feature. The method comprises: determining a local localisation map based on a location of the mobile device; finding, in the local localisation map, at least a first region and a second region which comprise similar features; modifying the local localisation map to reduce similarity between the first region and the second region; and transmitting the modified local localisation map to the mobile device.

Example embodiments relate to techniques for detecting adverse road conditions using radar. A computing device may generate a first radar representation that represents a field of view for a radar unit coupled to a vehicle and during clear weather conditions and store the first radar representation in memory. The computing device may receive radar data from the radar unit during navigation of the vehicle on a road and determine a second radar representation based on the radar data. The computing device may also perform a comparison between the first radar representation and the second radar representation and determine a road condition for the road based on the comparison. The road condition may represent a quantity of precipitation located on the road and provide control instructions to the vehicle based on the road condition for the road.

The present disclosure provides a method and an apparatus for updating road network data. The method for updating the road network data is specifically implemented as follows: acquiring trajectory data reported by a terminal; determining a plurality of out-of-road trajectories within a preset area coverage according to the trajectory data; determining a fitting trajectory according to the plurality of out-of-road trajectories; and updating existing first road network data according to the fitting trajectory to acquire second road network data.

The present disclosure relates to a device and a method for controlling a vehicle. The device may include a camera for obtaining an image of a region around the vehicle and outputting image information, a navigation for outputting a current location of the vehicle as map information, a front radar for sensing an object in front of the vehicle and generating front radar information, a front-lateral radar for sensing an object in front of and lateral to the vehicle and generating front-lateral radar information, a lamp controller that generates a shadow zone code based on at least one of the image information, the map information, the front radar information, or the front-lateral radar information, and a lamp for forming a shadow zone in a light irradiation pattern based on the shadow zone code.

A technique is provided with which it is possible to appropriately reduce communication data volume. A central apparatus communicates with a mobile terminal that is movable with a mobile body. The mobile terminal includes extraction-information generation means that generates extraction information by extraction from measurement information. The central apparatus includes map-information generation means that generates map information based on the extraction information transmitted from the mobile terminal to the central apparatus, and map generation control means that evaluates completeness of the map information generated by the map-information generation means and generates command information based on the completeness.