Communication system and movable terminal
First Claim
1. A communication system including a movable terminal and a center that intercommunicates with the movable terminal,the movable terminal comprising:
- an in-terminal storage device storing an in-terminal map database containing a road configuration and positions of getting-on-off facilities, at which to get on or off a public transportation, and a regular public transportation travel database containing a regular travel schedule in a regular travel state of the public transportation; and
an in-terminal controller,the center comprising;
an in-center storage device storing an in-center map database containing a road configuration and positions of getting-on-off facilities, at which to get on or off the public transportation, and a present public transportation database containing the regular travel schedule of the public transportation and a present travel change state against the regular travel schedule; and
an in-center controller,the in-terminal controller comprising;
a local multi-modal route retrieval section to calculate as an optimal route a local route from a present position to a destination from candidates of route sections traveled by the public transportation and route sections traveled by different transportation other than the public transportation with reference to the in-terminal map database and the regular public transportation travel database;
a determination section to determine whether the local route calculated by the local multi-modal route retrieval section uses the public transportation;
a local route record section to record the local route as a guidance route used for executing route guidance when the determination section determines that the local route does not use the public transportation; and
a center multi-modal request section to transmit a multi-modal route retrieval request containing data on the present position and the destination, to the center when the determination section determines that the local route uses the public transportation,the in-center controller comprising;
a multi-modal route retrieval request reception section to receive the multi-modal route retrieval request transmitted by the center multi-modal request section of the movable terminal;
a center multi-modal route retrieval section to calculate as an optimal route a center route from the present position to the destination indicated in the multi-modal route retrieval request, from candidates of route sections traveled by the public transportation and route sections traveled by different transportation other than the public transportation with reference to the in-center map database and the present public transportation travel database when the multi-modal route retrieval request reception section receives the multi-modal route retrieval request; and
a multi-modal route distribution section to transmit data on the center route calculated by the center multi-modal route retrieval section to the movable terminal,the in-terminal controller further comprising;
a center route record section to record the center route as a guidance route used for executing route guidance upon receiving the data on the center route transmitted by the multi-modal route distribution section as a response to the multi-modal route retrieval request transmitted by the center multi-modal request section of the movable terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
A movable terminal stores previously a travel time schedule in a regular travel state of a public transportation. The movable terminal executes a route retrieval from candidates containing route sections traveled by using the public transportation and route sections traveled by using different transportation (i.e., foot, vehicle) other than the public transportation. As a result of the route retrieval, when it is determined that the route using the public transportation is more suitable, a request for a multi-modal retrieval based on actual present travel state of the public transportation is transmitted to a center. A center route received thereafter from the center is recorded as a guidance route used for executing route guidance.
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Citations
8 Claims
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1. A communication system including a movable terminal and a center that intercommunicates with the movable terminal,
the movable terminal comprising: -
an in-terminal storage device storing an in-terminal map database containing a road configuration and positions of getting-on-off facilities, at which to get on or off a public transportation, and a regular public transportation travel database containing a regular travel schedule in a regular travel state of the public transportation; and an in-terminal controller, the center comprising; an in-center storage device storing an in-center map database containing a road configuration and positions of getting-on-off facilities, at which to get on or off the public transportation, and a present public transportation database containing the regular travel schedule of the public transportation and a present travel change state against the regular travel schedule; and an in-center controller, the in-terminal controller comprising; a local multi-modal route retrieval section to calculate as an optimal route a local route from a present position to a destination from candidates of route sections traveled by the public transportation and route sections traveled by different transportation other than the public transportation with reference to the in-terminal map database and the regular public transportation travel database; a determination section to determine whether the local route calculated by the local multi-modal route retrieval section uses the public transportation; a local route record section to record the local route as a guidance route used for executing route guidance when the determination section determines that the local route does not use the public transportation; and a center multi-modal request section to transmit a multi-modal route retrieval request containing data on the present position and the destination, to the center when the determination section determines that the local route uses the public transportation, the in-center controller comprising; a multi-modal route retrieval request reception section to receive the multi-modal route retrieval request transmitted by the center multi-modal request section of the movable terminal; a center multi-modal route retrieval section to calculate as an optimal route a center route from the present position to the destination indicated in the multi-modal route retrieval request, from candidates of route sections traveled by the public transportation and route sections traveled by different transportation other than the public transportation with reference to the in-center map database and the present public transportation travel database when the multi-modal route retrieval request reception section receives the multi-modal route retrieval request; and a multi-modal route distribution section to transmit data on the center route calculated by the center multi-modal route retrieval section to the movable terminal, the in-terminal controller further comprising; a center route record section to record the center route as a guidance route used for executing route guidance upon receiving the data on the center route transmitted by the multi-modal route distribution section as a response to the multi-modal route retrieval request transmitted by the center multi-modal request section of the movable terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A movable terminal intercommunicating with a center,
the center including an in-center map database containing a road configuration and positions of getting-on-off facilities, at which to get on or off a public transportation, and a present public transportation travel database containing a regular travel schedule in a regular travel state of the public transportation and a present travel change state against the regular travel schedule, the movable terminal comprising: -
an in-terminal storage device storing an in-terminal map database containing a road configuration and positions of getting-on-off facilities, at which to get on or off the public transportation, and a regular public transportation travel database containing a travel schedule in a regular travel state of the public transportation; and an in-terminal controller, the in-terminal controller comprising; a local multi-modal route retrieval section to calculate as an optimal route a local route from a present position to a destination from candidates of route sections traveled by the public transportation and route sections traveled by different transportation other than the public transportation with reference to the in-terminal map database and the regular public transportation travel database; a determination section to determine whether the local route calculated by the local multi-modal route retrieval section uses the public transportation; a local route record section to record the local route as a guidance route used for executing route guidance when the determination section determines that the local route does not use the public transportation; a center multi-modal request section to transmit a multi-modal route retrieval request containing data on the present position and the destination, to the center when the determination section determines that the local route uses the public transportation; and a center route record section to record the center route as a guidance route used for executing route guidance upon receiving data on a center route transmitted from the center, the center route being calculated in the center as an optimal route from the present position to the destination indicated in the multi-modal route retrieval request, from candidates containing route sections traveled by the public transportation and route sections traveled by different transportation other than the public transportation with reference to the in-center map database and the present public transportation travel database.
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Specification