Information delivery system and method using positional information

• US 20080270530A1
• Filed: 12/21/2007
• Published: 10/30/2008
• Est. Priority Date: 04/26/2007
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Takahashi, Makoto, Sato, Yoshitaka, Takahashi, Shinichi, Susaki, Tomoko, Yayoi, Takaaki
• Granted Patent: US 7,805,484 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: G06F 16/24578 using ranking
• CPC Class Codes: G06F 16/9537 Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

Abstract

A personal digital assistant includes an input section for designating, when a user requests information based on positional information, whether user desires to acquire wide-area information or narrow-area information. If acquisition of narrow-area information is desired, a managing server removes noise by a noise removal processing section which makes a check to determine whether or not the wide-area information is noise. Hence, information desired by the user is preferentially displayed.

Claims

1. An information delivery system comprising portable terminals and a managing server in which information is delivered to portable terminals belonging to an information delivery range, wherein:

each of the portable terminals comprises;

a request range acquisition section for acquiring a first request range and a second request range,

a positional information acquisition section for acquiring positional information of the portable terminal, and

a request transmission section for transmitting a first information delivery request including the first request range and the positional information and a second information delivery request including the second request range and the positional information; and

the managing server comprises log information to store supply information and positional information delivered to the portable terminal in the past,

the managing server calculating, on the basis of the positional information and the first request range of the first information delivery request, a delivery frequency of the supply information belonging to the first request range,

the managing server calculating, on the basis of the positional information and the second request range of the second information delivery request, a delivery frequency of the supply information belonging to the second request range,

the managing server determining an information delivery rank of the supply information on the basis of the delivery frequency of the supply information belonging to the first request range and the delivery frequency of the supply information belonging to the second request range,

the managing server transmitting supply information associated with the information delivery rank to the portable terminal.

2. An information delivery system according to claim 1, wherein the managing server determines the information delivery rank of the supply information on the basis of the delivery frequency of the supply information belonging to the first request range, the delivery frequency of the supply information belonging to the second request range, and a value of deviation.

3. An information delivery system according to claim 1, wherein:

the portable terminal comprises means for designating a range; and

the managing server calculates the information delivery rank each time the range is changed and supplies the information delivery rank to the portable terminal.

4. An information delivery system according to claim 1, wherein the managing server assigns, as a weight to calculate the delivery frequency of the supply information, a state of access when the delivery information delivered to the portable terminal is used by the portable terminal.

5. An information delivery system according to claim 1, wherein:

the first request range is a maximum request range available for the portable terminal;

the second request range is a narrow request range narrower than the maximum request range; and

the managing server processes the delivery frequency of the supply information belonging to the second request range on the basis of statistic values including a mean value and variance obtained using the delivery frequency of the supply information belonging to the maximum request range and thereby determines the information delivery rank.

6. An information delivery system according to claim 1, wherein:

the managing server comprises access log storage means for storing as the log information therein whether the supply information is accessed as wide-area information or as narrow-area information; and

the managing server supplies, in an operation to designate a setting position of the supply information, reference information to set a size of an information supply range, on the basis of the log information stored in the access log storage means.

7. An information delivery system according to claim 1, wherein:

the managing server creates, when the supply information is set with designation of the position, a heat map of access information associated with the supply information and displays the heat map on a map in a range including the position thus designated.

8. An information delivery method of delivering information to portable terminals belonging to an information delivery range, comprising the steps of:

acquiring by each of the portable terminals a first request range and a second request range as well as positional information of the portable terminal;

transmitting by the portable terminal a first information delivery request including the first request range and the positional information and a second information delivery request including the second request range and the positional information;

storing as log information by a managing server supply information and positional information delivered to the portable terminal in the past;

calculating by the managing server a delivery frequency of the supply information belonging to the first request range on the basis of the positional information and the first request range of the first information delivery request;

calculating by the managing server a delivery frequency of the supply information belonging to the second request range on the basis of the positional information and the second request range of the second information delivery request;

determining by the managing server an information delivery rank of the supply information on the basis of the delivery frequency of the supply information belonging to the first request range and the delivery frequency of the supply information belonging to the second request range; and

transmitting by the managing server supply information associated with the information delivery rank to the portable terminal.

9. An information delivery method according to claim 8, wherein the information delivery rank of the supply information is determined on the basis of the delivery frequency of the supply information belonging to the first request range, the delivery frequency of the supply information belonging to the second request range, and a value of deviation.

10. An information delivery method according to claim 8, wherein:

the information delivery rank is calculated each time the range thus designated is changed on the portable terminal; and

the information delivery rank is supplied to the portable terminal.

11. An information delivery method according to claim 8, wherein a state of access when the delivery information delivered to the portable terminal is used by the portable terminal is assigned as a weight to calculate the delivery frequency of the supply information.

12. An information delivery method according to claim 8, wherein:

the first request range is a maximum request range available for the portable terminal;

the second request range is a narrow request range narrower than the maximum request range; and

the delivery frequency of the supply information belonging to the second request range is processed on the basis of statistic values including a mean value and variance obtained using the delivery frequency of the supply information belonging to the maximum request range to thereby determine the information delivery rank.

13. An information delivery method according to claim 8, wherein:

whether the supply information is accessed as wide-area information or as narrow-area information is stored as the log information; and

reference information to set a size of an information supply range is supplied on the basis of the log information thus stored, in an operation to designate a setting position of the supply information.

14. An information delivery method according to claim 8, wherein:

when the supply information is set with designation of the position, a heat map of access information associated with the positional relation information beforehand set is displayed on a map in a range including the position thus designated.

15. An information delivery method, comprising the steps of:

storing access information of the past, the access information being associated with reception of information delivery requests from a plurality of portable terminals;

obtaining, when an information delivery request of supply information is received from a portable terminal with designation of an information acquisition range, positional information of the portable terminal;

adjusting, according to the range thus designated, a ranking of the supply information on the basis of the access information; and

supplying the ranking thus adjusted to the portable terminal.

16. An information delivery method according to claim 15, further comprising the steps of:

determining, if narrow-area information is designated by the portable terminal in the adjustment of the ranking of the supply information on the basis of the access information, whether or not a number of accesses to a wide range is noise by use of a value calculated on the basis of a value calculated using the number of accesses of the supply information allocated in a wide range and the range and a value calculated using a number of accesses of the supply information set to a narrow range and the range; and

executing, if the number of accesses is nose, processing of correcting the number of accesses by using the value calculated as above.

17. An information delivery program, comprising:

a portable-terminal request processing step of processing a request for supply information, the request being received from a portable terminal;

a supply step of supplying the supply information associated with a request for acquiring supply information selected by a user from a supply information list processed by the portable-terminal request processing step; and

a transition processing step of processing a request which requests other information and/or a page transition when the supply information is displayed on the portable terminal.

18. An information delivery program according to claim 17, wherein the portable-terminal request processing step comprises a noise removal processing step for selecting supply information having higher priority at a position requested by the user.

19. An information delivery program according to claim 17, further comprising a supply information setting step of processing a request which sets information received from a client terminal.