Measuring terminal, service device and request terminal

• US 20050037748A1
• Filed: 02/24/2004
• Published: 02/17/2005
• Est. Priority Date: 08/11/2003
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Sawano, Hideki
• Application Number:
  US10/784,182
• Publication Number:
  US 20050037748A1
• Time in Patent Office: Days
• US Class Current: 455/423
• CPC Class Codes: G01S 19/46 the supplementary measurement being of a radio-wave signal type
• CPC Class Codes: G01S 5/0009 Transmission of position information to remote stations involving assistance data G01S5/0236
• CPC Class Codes: G01S 5/0284 Relative positioning
• 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 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds

Abstract

In the case of searching for a search object 400, measuring terminals 300 obtain information about an area where the search is effected from a request terminal 100 requesting the search, and a service device 200 calculates the position information of the search object 400 for the terminal 100 on the basis of present position information and distance information given from the measuring terminals 300.

Claims

1. A measuring apparatus cooperating with a service device for providing position information to a request apparatus requesting a position of a search object, comprising:

a unit accepting from the request apparatus a search request for searching the position of the search object;

a unit calculating a distance between the measuring apparatus and the search object;

a unit acquiring present position information of the measuring apparatus; and

a unit transmitting the present position information and the distance information to the service device.

2. A measuring apparatus according to claim 1, further comprising:

a unit transmitting radio waves receivable by the search object; and

a unit receiving a response to the radio waves from the search object.

3. A measuring apparatus according to claim 1, wherein the search request contains information capable of specifying the request apparatus, and

the unit transmitting the present position information and the distance information together with the specifiable information to the service device.

4. A service device for providing position information to a request apparatus requesting the position information of a search object, comprising:

a unit receiving, from a measuring apparatus for measuring a position of the search object, present position information of the measuring apparatus and information about a distance between the measuring apparatus making the measurement and the search object; and

a unit transmitting to the request apparatus the position information of the search object that has been calculated based on the present position information and the information about the distance to the search object.

5. A request apparatus provided with position information of a search object through a system including a service device for providing the position information of the search object and measuring apparatuses for reporting distances to the search object to the service device, comprising:

a unit transmitting a search request for the position information of the search object to the measuring apparatuses existing in the periphery of the self-apparatus; and

a unit receiving via the service device the position information of the search object that is based on the reports given from the measuring apparatuses.

6. A request apparatus according to claim 5, wherein the search request contains information capable of specifying the individual request apparatus and information for designating the search object, and

the receiving unit receives the position information in accordance with the specifiable information.

7. A request apparatus according to claim 5, further comprising unit receiving setting of a search object range in the periphery of the self-apparatus,

wherein the transmitting unit includes transmission gain control unit controlling electromagnetic waves carrying the search request at a predetermined receipt electric power level in the search object range.

8. A method executed by a apparatus cooperating with a service device for providing position information to a request apparatus requesting a position of a search object, comprising:

accepting from the request apparatus a search request for searching the position of the search object;

transmitting radio waves receivable by the search object;

receiving a response to the radio waves from the search object;

calculating a distance between the apparatus and the search object from the response received;

acquiring present position information of the apparatus; and

transmitting the present position information and the distance information to the service device.

9. A position information measuring method according to claim 8, wherein the search request contains information capable of specifying the request apparatus, and

transmitting the present position information and the distance information together with the specifiable information to the service device.

10. A method executed by a service device for providing position information to a request apparatus requesting the position information of a search object, comprising:

receiving, from a measuring apparatus for measuring a position of the search object, present position information of the measuring apparatus and information about a distance between the measuring apparatus making the measurement and the search object; and

transmitting to the request apparatus the position information of the search object that has been calculated based on the present position information and the information about the distance to the search object.

11. A method executed by a apparatus provided with position information of a search object through a system including a service device for providing the position information of the search object and measuring apparatuses for reporting distances to the search object to the service device, comprising:

transmitting a search request for the position information of the search object to the measuring apparatuses existing in the periphery of the self-apparatus; and

receiving via the service device the position information of the search object that is based on the reports given from the measuring apparatuses.

12. A position information requesting method according to claim 11, wherein the search request contains information capable of specifying the individual request apparatus and information for designating the search object, and

receiving the position information in accordance with the specifiable information.

13. A position information requesting method according to claim 11, further comprising receiving setting of a search object range in the periphery of the self-apparatus,

controlling electromagnetic waves carrying the search request at a predetermined receipt electric power level in the search object range.

15. A storage medium that stored a position information measuring program according to claim 13, wherein the search request contains information capable of specifying the request apparatus, and

transmitting the present position information and the distance information together with the specifiable information to the service device.

14. A storage medium that stored an executable-by-computer position information measuring program for making a apparatus cooperating with a service device for providing position information to a request apparatus requesting a position of a search object, the program execute:

accepting from the request apparatus a search request for searching the position of the search object;

transmitting radio waves receivable by the search object;

receiving a response to the radio waves from the search object;

calculating a distance between the apparatus and the search object from the response received;

acquiring present position information of the apparatus; and

transmitting the present position information and the distance information to the service device.

16. A storage medium that stored a program for making a computer for providing position information to a request apparatus requesting the position information of a search object, the program execute:

receiving, from a measuring apparatus for measuring a position of the search object, present position information of the measuring apparatus and information about a distance between the measuring apparatus making the measurement and the search object; and

transmitting to the request apparatus the position information of the search object that has been calculated based on the present position information and the information about the distance to the search object.

17. A storage medium that stored an executable-by-computer position information requesting program for making an apparatus provided with position information of a search object through a system including a service device for providing the position information of the search object and measuring apparatuses for reporting distances to the search object to the service device, the program execute:

transmitting a search request for the position information of the search object to the measuring apparatuses existing in the periphery of the self-apparatus; and

receiving via the service device the position information of the search object that is based on the reports given from the measuring apparatuses.

18. A storage medium that stored a position information requesting program according to claim 17, wherein the search request contains information capable of specifying the individual request apparatus and information for designating the search object, and

receiving the position information in accordance with the specifiable information.

19. A storage medium that stored a position information requesting program according to claim 17, wherein the apparatus is made to further execute receiving setting of a search object range in the periphery of the self-apparatus,

transmitting a transmission gain control controlling electromagnetic waves carrying the search request at a predetermined receipt electric power level in the search object range.