A control method for a server, comprising: receiving and saving a plurality of corresponding relationships between road section patterns and a positioning route of a vehicle on a map of a parking lot, said plurality of corresponding relationships uploaded by the vehicle, for each of a plurality of positioning routes, wherein a road section pattern corresponds to a road section window of a travelled route of the vehicle; forming a scenario road section library, wherein the scenario road section library comprises a plurality of scenarios, and each scenario comprises said plurality of corresponding relationships for each respective positioning route; acquiring a current positioning route input by the vehicle, the input including a plurality of corresponding relationships between road section patterns and the current positioning route, wherein said current positioning route comprises a plurality of first road section windows; comparing the current positioning route against each scenario in the scenario road section library based on a position signal of the current positioning route to determine if the current positioning route matches a scenario, wherein the scenario comprises a plurality of second road section windows; when the current positioning route matches a scenario, comparing each of the plurality of first road section windows of the current positioning route against each of the plurality of second road section windows within the scenario; and merging the first road section windows with the second road section windows to update the second road section windows when the first road section windows match the second road section windows; wherein each of the second road section windows within the scenario has a corresponding maturity level, and the control method comprises: when the sum of the maturity level of the scenario reaches a first preset value, comparing in sequence a current second road section window against the remaining second road section windows within the scenario based on the position signal; and when the current second road section window matches one of the remaining second road section windows, merging the current second road section window and the second road section window matching the current second road section window to update the scenario. receiving and saving a plurality of corresponding relationships between road section patterns and a positioning route of a vehicle on a map of a parking lot, said plurality of corresponding relationships uploaded by the vehicle, for each of a plurality of positioning routes, wherein a road section pattern corresponds to a road section window of a travelled route of the vehicle; forming a scenario road section library, wherein the scenario road section library comprises a plurality of scenarios, and each scenario comprises said plurality of corresponding relationships for each respective positioning route; acquiring a current positioning route input by the vehicle, the input including a plurality of corresponding relationships between road section patterns and the current positioning route, wherein said current positioning route comprises a plurality of first road section windows; comparing the current positioning route against each scenario in the scenario road section library based on a position signal of the current positioning route to determine if the current positioning route matches a scenario, wherein the scenario comprises a plurality of second road section windows; when the current positioning route matches a scenario, comparing each of the plurality of first road section windows of the current positioning route against each of the plurality of second road section windows within the scenario; and merging the first road section windows with the second road section windows to update the second road section windows when the first road section windows match the second road section windows; wherein each of the second road section windows within the scenario has a corresponding maturity level, and the control method comprises: when the sum of the maturity level of the scenario reaches a first preset value, comparing in sequence a current second road section window against the remaining second road section windows within the scenario based on the position signal; and when the current second road section window matches one of the remaining second road section windows, merging the current second road section window and the second road section window matching the current second road section window to update the scenario. when the sum of the maturity level of the scenario reaches a first preset value, comparing in sequence a current second road section window against the remaining second road section windows within the scenario based on the position signal; and when the current second road section window matches one of the remaining second road section windows, merging the current second road section window and the second road section window matching the current second road section window to update the scenario.