| 主权项 |
1. A navigation system comprising:
an in-vehicle device mounted in an automobile; a mobile device configured to connect to the in-vehicle device; and a navigation server configured to transmit map data and a route to a destination requested from the mobile device to the mobile device via wireless communication, the in-vehicle device including
a display device,an input device,a map data storage configured to store map data,a current position calculation unit configured to calculate a current position of the automobile,a navigation unit configured to perform a destination setting operation to receive setting of a destination from a user via the input device when a first mode is set as an operation mode of the in-vehicle device, a guidance route setting operation to set a guidance route to be a route to the destination received in the destination setting operation, and a navigation screen display operation to display a navigation screen on the display device, the navigation screen showing the current position of the automobile and the guidance route on a map represented by the map data stored in the map data storage, anda navigation switcher, the mobile device including
a current position calculation unit configured to calculate a current position of the mobile device,a navigation client unit configured to perform a destination reception operation to receive setting of a destination from a user via the input device of the in-vehicle device when a second mode is set as the operation mode in a state in which the mobile device is connected to the in-vehicle device, a guidance route acquisition operation to request a route to the destination received in the destination reception operation from the navigation server system, and thereby to obtain the route from the navigation server system to set a guidance route, and a route guidance screen display operation to obtain map data from the navigation server system, to transfer a route guidance screen to the in-vehicle device, which is caused to display the route guidance screen on the display device, the route guidance screen showing the current position of the mobile device and the guidance route on a map represented by the obtained map data, anda state detector configured of detect a state indicating whether or not the navigation client unit is connectable to the navigation server, wherein when the first mode is set as the operation mode in a state in which the mobile device is connected to the in-vehicle device and an instruction to start a setting operation for a destination is provided by a user, the navigation switcher causes the navigation unit of the in-vehicle device to perform the destination setting operation, when the second mode is set as the operation mode in a state in which the mobile device is connected to the in-vehicle device and an instruction to start the setting operation for a destination is provided by a user, in the case where a state detected by the state detector of the mobile device indicates that the navigation client unit is connectable to the navigation server, the navigation switcher is configured to cause the navigation client unit of the mobile device to perform the destination reception operation, and when the second mode is set as the operation mode in a state in which the mobile device is connected to the in-vehicle device and an instruction to start the setting operation for a destination is provided by a user, in the case where a state detected by the state detector of the mobile device indicates that the navigation client unit is not connectable to the navigation server, the navigation switcher is configured to perform a navigation switching operation to switch the operation mode to the first mode and to cause the navigation unit of the in-vehicle device to perform the destination setting operation. |
