Patent ID: 8712687

Claim:
A determining system for localization methods combination which determines a suitable combination candidate of localization methods before a vehicle actually performs a localization, the determining system comprising: a storage unit that stores: correspondence information in which a landmark used by one of the localization methods and a localization accuracy influence parameter which influences a localization accuracy obtained when localization is performed using the respective one of the localization methods are made to correspond to each other, for each of the localization methods, a localization accuracy influence parameter map which is map data including a value of the localization accuracy influence parameter, and a localization accuracy database which shows a relation between the value of the localization accuracy influence parameter and the localization accuracy; and a control unit that: acquires a travel environment of the vehicle and a proposed combination candidate including two or more localization methods, from an input unit, identifies a localization accuracy influence parameter which is previously made to correspond to various landmarks at respective positions in the travel environment used by one of the localization methods of the proposed combination candidate, using the correspondence information, for each of the localization methods of the proposed combination candidate, identifies a value of the identified localization accuracy influence parameter which is identified in the travel environment, using the localization accuracy influence parameter map, for each of the localization methods of the proposed combination candidate, predicts, with reference to the localization accuracy database, a localization accuracy corresponding to the value of the identified localization accuracy influence parameter, for each of the localization methods of the proposed combination candidate in the respective positions in the travel environment, and determines the proposed combination candidate as an actual combination of the localization methods for localization of the vehicle, if any one of the predicted localization accuracies at each of the respective positions in the travel environment is not less than a target accuracy inputted from the input unit.