PROBLEM TO BE SOLVED: To prevent a decline in the accuracy of a measured position due to an encounter with a situation where a satellite radio wave reception condition is poor and stabilize the traveling of a mobile entity when making a mobile entity traveling on the basis of information measured by a satellite positioning system travel down one of a plurality of predetermined travel routes.SOLUTION: A server device 2 comprises: a route selection unit 20a; a recording unit for recording sensitivity information indicating satellite radio wave reception sensitivity included in positioning information acquired by a mobile entity 1 while traveling and received from the mobile entity 1, route information indicating a travel route that was traveled, and time slot information indicating a time slot in which the mobile entity has traveled in association with each other; a change unit 20c for performing a change process for changing the selection probability of each travel route by a route selection unit 20a on the basis of sensitivity information for each route information associated with the time slot information corresponding to a scheduled travel date/time; and a route selection unit 20a for randomly selecting the travel route of the mobile entity 1 at a scheduled travel date/time from among the plurality of predetermined travel routes using the selection probability changed in correspondence to the scheduled travel date/time.SELECTED DRAWING: Figure 1
【課題】衛星測位システムで測位した情報に基づき走行する移動体を、予め定めた複数の走行経路の中の1つを走行させるに際し、衛星電波の受信状態が悪い場面に遭遇することによる測位位置の精度の低下を防ぎ、移動体の走行を安定化させる。【解決手段】サーバ装置2は、経路選択部20aと、移動体1で走行時に取得され移動体1から受信した測位情報に含まれる衛星電波受信感度を示す感度情報と、走行した走行経路を示す経路情報と、走行した時間帯を示す時間帯情報と、を関連付けて記録する記録部と、走行予定日時に対応する時間帯情報に関連付けられた経路情報毎の感度情報に基づき、経路選択部20aにおける各走行経路の選択確率を変更する変更処理を行う変更部20cと、走行予定日時に対応して変更された選択確率を用い、予め定められた複数の走行経路の中から走行予定日時における移動体1の走行経路をランダムに選択する経路選択部20aと、を備える。【選択図】図1
SERVER DEVICE, MOBILE ENTITY, AND METHOD FOR SELECTING TRAVEL ROUTE
サーバ装置、移動体、及び走行経路選択方法
2017-03-30
Patent
Electronic Resource
Japanese
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