In one embodiment, a method includes collecting, by a magnetic navigation device, magnetic measurements of a particular geographical region in accordance with a position and trajectory of the magnetic navigation device; accessing a global navigation satellite system (GNSS) signal status and a network connection status on the magnetic navigation device; determining an operational mode for the magnetic navigation device based on the GNSS signal status and the network connection status; determining whether to transmit the magnetic measurements to a server or store the magnetic measurements locally on the magnetic navigation device based on the operational mode; and performing navigation or localization operations using the operational mode.

In one aspect, a method comprises identifying a set of main components of an address that have a highest importance for a specified geography are identified. The method comprises providing a geocoding database comprising a dataset of geocoded addresses of a geocoder. The method comprises receiving a set of responses from the geocoding database, wherein each response comprises a geocoded addresses of the geocoding database. The method comprises breaking each response into a set of components. The method comprises, based on the set of components, matching the address and each response in the set of components; based on the match, calculating a string similarity score and a component match score of each response between the address and each response. The method comprises sorting the responses based on the string similarity score of each response and the component match score of each response. The method comprises selecting a first response of the set of responses after sorting as the best response. The method comprises calculating a confidence score of the first response, wherein the confidence score is calculated using a formula which depends on the string similarity score and the component match score of the first response.

A method is disclosed for analyzing historical accident information to adjust driving actions of an autonomous vehicle over a travel route in order to avoid accidents which have occurred over the travel route. Historical accident information for the travel route can be analyzed to, for example, determine accident types which occurred over the travel route and determine causes and/or probable causes of the accident types. In response to determining accident types and causes / probable causes of the accident types over the travel route, adjustments can be made to the driving actions planned for the autonomous vehicle over the travel route. In addition, in an embodiment, historical accident information can be used to analyze available travel routes and select a route which presents less risk of accident than others.

Provided are a method and apparatus for testing an electronic map, an electronic device, and a storage medium. The method for testing an electronic map includes that N search words input by a user is acquired through the electronic map, where N is a natural number greater than or equal to 1; a correspondence between the N search words and policy scenarios is determined; a user scenario corresponding to each search word and a policy scenario corresponding to each search word are obtained based on a predetermined correspondence between the N search words and a user scenario and the correspondence between the N search words and the policy scenario; and the electronic map is tested based on a user scenario corresponding to each search word and the policy scenario corresponding to each search word.

In one embodiment, a method includes collecting, by a magnetic navigation device, magnetic measurements of a particular geographical region in accordance with a position and trajectory of the magnetic navigation device; accessing a global navigation satellite system (GNSS) signal status and a network connection status on the magnetic navigation device; determining an operational mode for the magnetic navigation device based on the GNSS signal status and the network connection status; determining whether to transmit the magnetic measurements to a server or store the magnetic measurements locally on the magnetic navigation device based on the operational mode; and performing navigation or localization operations using the operational mode.

In a method for generating map data of a digital map from raw data of the digital map with improved flexibility, an object-specific correction data set is used for generating the map data. The object-specific correction data set comprises precisely one value of a derived attribute for the map object, wherein the value of the derived attribute contained in the correction data set is allocated to the map object of the map data.

A map selection device having an acquisition device that acquires a traveling route from the current location of a vehicle to a destination, a storage device that stores multiple maps, and a processor configured to select one or more maps containing a traveling route from among the multiple maps stored in the memory, so as to include the region from the current location on the traveling route to the destination, and, when multiple map candidates exist containing a single zone included in the traveling route, to select a map candidate suitable for automatic control as the map to be utilized for traveling in the zone.

A transportation vehicle, an apparatus, a method, and a computer program for determining a merged environmental map of the transportation vehicle. The method for a transportation vehicle and for determining a merged environmental map of the transportation vehicle includes obtaining information related to a first environmental map, which is based on messages communicated with other transportation vehicles or infrastructure in the environment; obtaining information related to a second environmental map, which is based on sensor data of the transportation vehicle; and determining the merged environmental map based on the information related to the first environmental map and the information related to the second environmental map.

An information processing method for a vehicle includes capturing and storing images of an area around the vehicle, and transmitting an image to an information processing apparatus when a judgment is made that a road on which the vehicle is traveling can no longer be identified by map matching, the image being captured at a time when the judgment is made.

The present disclosure may provide a method for route planning. The method may include obtaining a start location and a destination of a target vehicle. The method may also include obtaining a map of a target region including the start location and the destination. The map may include node information of each of a plurality of nodes. Further, the method may include obtaining motion status information associated with one or more vehicles other than the target vehicle in the target region. The method may further include determining a target route of the target vehicle based at least in part on the start location, the destination, the motion status information associated with the one or more vehicles, and the map.