IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0231460
(2002-08-30)
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우선권정보 |
JP-0266473 (2001-09-03) |
발명자
/ 주소 |
- Fukushima, Atsuhiko
- Koga, Yuji
- Fujita, Toru
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
15 인용 특허 :
1 |
초록
▼
A communication navigation system is provided with: a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (2) for connecting them. The communication navigation terminal is provided with a traveling locus recording device (36, 24) for preferenti
A communication navigation system is provided with: a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (2) for connecting them. The communication navigation terminal is provided with a traveling locus recording device (36, 24) for preferentially holding a traveling locus recorded when a movable body is driving out of a service area of the communication navigation system; and a processing device (20) for performing a route search and the like on the basis of this preferentially held traveling locus.
대표청구항
▼
1. A communication navigation system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,(i) said communication center apparatus comprising: a map database for
1. A communication navigation system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,(i) said communication center apparatus comprising: a map database for storing therein map database information including information for a route search, which enables the route search from a current position of a movable body to a destination by a predetermined algorithm; a search device for searching, by the predetermined algorithm, for a route heading to the destination from the current position, on the basis of the map database information including the information for the route search, according to the destination and the current position received through the communication network; and a center side wireless device for wirelessly transmitting route information indicating the searched route through the communication network, (ii) said communication navigation terminal comprising: a measurement device for measuring the current position; a terminal side wireless device for transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording device for recording a traveling locus of the movable body such that it preferentially holds the traveling locus recorded when the movable body is moving out of a service area of said communication navigation system; and a processing device for performing navigation processing of a predetermined type based on the preferentially held traveling locus in case that the movable body is moving out of the service area. 2. The system according to claim 1, wherein said traveling locus recording device records the traveling locus with information indicating within or out of the service area.3. The system according to claim 1, wherein said traveling locus recording device deletes the traveling locus recorded when the movable body is traveling within the service area, in an order from old to new one.4. The system according to claim 1, wherein said traveling locus recording device gives priority to recording the traveling locus out of the service area than to recording the traveling locus within the service area until the traveling locus out of the service area occupies a predetermined ratio of a record area of said traveling locus recording device, and said traveling locus recording device replaces the traveling locus in an order from old to new one.5. The system according to claim 1, wherein said traveling locus recording device is equipped with a first record area for recording the traveling locus within the service area and a second record area for recording the traveling locus out of the service area and replaces the traveling locus in an order from old to new one respectively in the first and second record areas.6. The system according to claim 1, wherein the navigation processing of the predetermined type is processing of searching for at least one of a route and a direction to be traveled by the movable body, from the measured current position and the preferentially held traveling locus.7. A communication navigation system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,(i) said communication center apparatus comprising: a map database for storing therein map database information including information for a route search, which enables the route search from a current position of a movable body to a destination by a predetermined algorithm; a search device for searching, by the predetermined algorithm, for a route heading to the destination from the current position, on the basis of the map database information including the information for the route search, from the destination and the current position received through the communication network; and a center side wireless device for wirelessly transmitting route information indicating the searched route through the communication network, (ii) said communication navigation terminal comprising: a measurement device for measuring the current position; a terminal side wireless device for transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording device for recording a traveling locus of the movable body; and a processing device for searching for at least one of a route and a direction to be traveled by the movable body as navigation processing of a predetermined type based on the measured current position and the recorded traveling locus in case that the movable body is moving out of the service area. 8. The system according to claim 1, wherein said communication navigation terminal further comprises a judgment device for judging whether the current position is within or out of the service area.9. The system according to claim 7, wherein said communication navigation terminal further comprises a judgment device for judging whether the current position is within or out of the service area.10. The system according to claim 8, wherein said judgment device judges on the basis of an electric field intensity of an electric wave received by said terminal side wireless device.11. The system according to claim 9, wherein said judgment device judges on the basis of an electric field intensity of an electric wave received by said terminal side wireless device.12. The system according to claim 8, wherein said judgment device judges by transmitting a predetermined data row to said communication center apparatus from said communication navigation terminal, restoring the received data row at said communication center apparatus and transmitting it back to said communication navigation terminal, and then comparing the received data row with the transmitted data row at said communication navigation terminal.13. The system according to claim 9, wherein said judgment device judges by transmitting a predetermined data row to said communication center apparatus from said communication navigation terminal, restoring the received data row at said communication center apparatus and transmitting it back to said communication navigation terminal, and then comparing the received data row with the transmitted data row at said communication navigation terminal.14. The system according to claim 8, wherein a judgment of said judgment device is performed at a predetermined time interval.15. The system according to claim 9, wherein a judgment of said judgment device is performed at a predetermined time interval.16. The system according to claim 8, wherein a judgment of said judgment device is performed at a predetermined driving distance interval.17. The system according to claim 9, wherein a judgment of said judgment device is performed at a predetermined driving distance interval.18. The system according to claim 8, wherein said processing device performs the navigation processing of the predetermined type in case that the current position is judged to belong out of the service area by said judgment device.19. The system according to claim 9, wherein said processing device performs the navigation processing of the predetermined type in case that the current position is judged to belong out of the service area by said judgment device.20. The system according to claim 1, further comprising a user communication terminal for performing a two-way communication on the communication network,said user communication terminal being capable of transmitting the destination to said communication center apparatus. 21. The system according to claim 7, further comprising a user communication terminal for performing a two-way communication on the communication network,said user communication terminal being capable of transmitting the destination to said communication center apparatus. 22. A communication navigation terminal for transmitting and receiving information by a two-way communication through a communication network with respect to a communication center apparatus provided with: (i) a map database for storing therein map database information including information for a route search, which enables the route search from a current position of a movable body to a destination by a predetermined algorithm; (ii) a search device for searching, by the predetermined algorithm, for a route heading to the destination from the current position, on the basis of the map database information including the information for the route search, according to the destination and the current position received through the communication network; and (iii) a center side wireless device for wirelessly transmitting route information indicating the searched route through the communication network,said communication navigation terminal comprising: a measurement device for measuring the current position; a terminal side wireless device for transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording device for recording a traveling locus of the movable body such that it preferentially holds the traveling locus recorded when the movable body is moving within a service area of a communication navigation system; and a processing device for performing navigation processing of a predetermined type based on the preferentially held traveling locus in case that the movable body is moving out of the service area. 23. A program device readable by a computer in a communication navigation system for tangibly embodying a program of instructions executable by the computer to perform method processes of communication navigation at a communication navigation terminal for transmitting and receiving information by a two-way communication through a communication network with respect to a communication center apparatus provided with: (i) a map database for storing therein map database information including information for a route search, which enables the route search from a current position of a movable body to a destination by a predetermined algorithm; (ii) a search device for searching, by the predetermined algorithm, for a route heading to the destination from the current position, on the basis of the map database information including the information for the route search, according to the destination and the current position received through the communication network; and (iii) a center side wireless device for wirelessly transmitting route information indicating the searched route through the communication network,said method processes comprising: a measurement process of measuring the current position; a terminal side wireless process of transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording process of recording a traveling locus of the movable body such that it preferentially holds the traveling locus recorded when the movable body is moving within a service area of a communication navigation system; and a process of performing navigation processing of a predetermined type based on the preferentially held traveling locus in case that the movable body is moving out of the service area. 24. A computer data signal embodied in a carrier wave and representing a series of instructions which cause a computer in a communication navigation system to perform method processes of communication navigation at a communication navigation terminal for transmitting and receiving information by a two-way communication through a communication network with respect to a communication center apparatus provided with: (i) a map database for storing therein map database information including information for a route search, which enables the route search from a current position of a movable body to a destination by a predetermined algorithm; (ii) a search device for searching, by the predetermined algorithm, for a route heading to the destination from the current position, on the basis of the map database information including the information for the route search, according to the destination and the current position received through the communication network; and (iii) a center side wireless device for wirelessly transmitting route information indicating the searched route through the communication network,said method processes comprising: a measurement process of measuring the current position; a terminal side wireless process of transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording process of recording a traveling locus of the movable body such that it preferentially holds the traveling locus recorded when the movable body is moving within a service area of a communication navigation system; and a process of performing navigation processing of a predetermined type based on the preferentially held traveling locus in case that the movable body is moving out of the service area. 25. A program storage device readable by a computer for tangibly embodying a program of instructions executable by the computer to perform method processes of communication navigation in a communication navigation system, said system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,said method processes comprising: (i) at said communication center apparatus, a search process of searching, by a predetermined algorithm, for a route heading to a destination from a current position of a movable body, according to the destination and the current position received through the communication network, on the basis of a map database for storing therein map database information including information for a route search, which enables the route search from the current position to the destination by the predetermined algorithm; and a center side wireless process of wirelessly transmitting route information indicating the searched route through the communication network, and (ii) at said communication navigation terminal, a measurement process of measuring the current position; a terminal side wireless process of transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording process of recording a traveling locus of the movable body such that it preferentially holds the traveling locus recorded when the movable body is moving out of a service area of said communication navigation system; and a process of performing navigation processing of a predetermined type based on the preferentially held traveling locus in case that the movable body is moving out of the service area. 26. A computer data signal embodied in a carrier wave and representing a series of instructions which cause a computer to perform method processes of communication navigation in a communication navigation system, said system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,(i) at said communication center apparatus, a search process of searching, by a predetermined algorithm, for a route heading to a destination from a current position of a movable body, according to the destination and the current position received through the communication network, on the basis of a map database for storing therein map database information including information for a route search, which enables the route search from the current position to the destination by the predetermined algorithm; and a center side wireless process of wirelessly transmitting route information indicating the searched route through the communication network, and (ii) at said communication navigation terminal, a measurement process of measuring the current position; a terminal side wireless process of transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording process of recording a traveling locus of the movable body such that it preferentially holds the traveling locus recorded when the movable body is moving out of a service area of said communication navigation system; and a process of performing navigation processing of a predetermined type based on the preferentially held traveling locus in case that the movable body is moving out of the service area. 27. A program storage device readable by a computer for tangibly embodying a program of instructions executable by the computer to perform method processes of communication navigation in a communication navigation system, said system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,said method processes comprising: (i) at said communication center apparatus, a search process of searching, by a predetermined algorithm, for a route heading to a destination from a current position of a movable body, according to the destination and the current position received through the communication network, on the basis of a map database for storing therein map database information including information for a route search, which enables the route search from the current position to the destination by the predetermined algorithm; and a center side wireless process of wirelessly transmitting route information indicating the searched route through the communication network, and (ii) at said communication navigation terminal, a measurement process of measuring the current position; a terminal side wireless process of transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording process of recording a traveling locus of the movable body; and a process of searching for at least one of a route and a direction to be traveled by the movable body as navigation processing of a predetermined type based on the measured current position and the recorded traveling locus in case that the movable body is moving out of the service area. 28. A computer data signal embodied in a carrier wave and representing a series of instructions which cause a computer to perform method processes of communication navigation in a communication navigation system, said system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,said method processes comprising: (i) at said communication center apparatus, a search process of searching, by a predetermined algorithm, for a route heading to a destination from a current position of a movable body, according to the destination and the current position received through the communication network, on the basis of a map database for storing therein map database information including information for a route search, which enables the route search from the current position to the destination by the predetermined algorithm; and a center side wireless process of wirelessly transmitting route information indicating the searched route through the communication network, and (ii) at said communication navigation terminal, a measurement process of measuring the current position; a terminal side wireless process of transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording process of recording a traveling locus of the movable body; and a process of searching for at least one of a route and a direction to be traveled by the movable body as navigation processing of a predetermined type based on the measured current position and the recorded traveling locus in case that the movable body is moving out of the service area. 29. A communication navigation method executed in a communication navigation system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,said method comprising: (i) at said communication center apparatus, a search process of searching, by a predetermined algorithm, for a route heading to a destination from a current position of a movable body, according to the destination and the current position received through the communication network, on the basis of a map database for storing therein map database information including information for a route search, which enables the route search from the current position to the destination by the predetermined algorithm; and a center side wireless process of wireless transmitting route information indicating the searched route through the communication network, and (ii) at said communication navigation terminal, a measurement process of measuring the current position; a terminal side wireless process of transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording process of recording a traveling locus of the movable body such that it preferentially holds the traveling locus recorded when the movable body is moving out of a service area of said communication navigation system; and a process of performing navigation processing of a predetermined type based on the preferentially held traveling locus in case that the movable body is moving out of the service area. 30. A communication navigation method executed in a communication navigation system comprising: a communication center apparatus; and a communication navigation terminal, both of which transmit and receive information by a two-way communication through a communication network,said method comprising: (i) at said communication center apparatus, a search process of searching, by a predetermined algorithm, for a route heading to a destination from a current position of a movable body, according to the destination and the current position received through the communication network, on the basis of a map database for storing therein map database information including information for a route search, which enables the route search from the current position to the destination by the predetermined algorithm; and a center side wireless process of wirelessly transmitting route information indicating the searched route through the communication network, and (ii) at said communication navigation terminal, a measurement process of measuring the current position; a terminal side wireless process of transmitting the measured current position and receiving the transmitted route information through the communication network; a traveling locus recording process of recording a traveling locus of the movable body; and a process of searching for at least one of a route and a direction to be traveled by the movable body as navigation processing of a predetermined type based on the measured current position and the recording traveling locus in case that the movable body is moving out of the service area.
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