INFORMATION PROCESSING APPARATUS, NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM, AND INFORMATION PROCESSING METHOD

• US 20160044628A1
• Filed: 06/08/2015
• Published: 02/11/2016
• Est. Priority Date: 08/11/2014
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: NAKAO, Manabu
• Granted Patent: US 9,826,478 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01S 5/02524 Creating or updating the radio-map
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 52/0209 in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An information processing apparatus includes a reception unit, a first storage unit, a first processor, a second storage unit, a third storage unit, and a second processor. The second processor executes a process of specifying a place by place specifying data of a partial area stored in the second storage unit based on a signal received by the reception unit, and a process of updating the place specifying data of the partial area stored in the second storage unit and an identification information of an access point stored in the third storage unit through the first processor when the identification information of the access point detected from the signal received by the reception unit is stored in the third storage unit.

Claims

1. An information processing apparatus comprising:

a reception unit that receives a signal from an access point;

a first storage unit that stores master data of place specifying data including identification information of the access point detected from the signal received by the reception unit in each place and including strength of the received signal;

a first processor that accesses the first storage unit;

a second storage unit that stores place specifying data of a partial area extracted by the first processor from the place specifying data in the first storage unit;

a third storage unit that stores the identification information of the access point detected in a place around a place specified by the place specifying data of the extracted partial area; and

a second processor that accesses the second storage unit and the third storage unit, wherein

the second processor executes;

a process of specifying the place by the place specifying data of the partial area stored in the second storage unit based on the signal received by the reception unit, and

a process of updating the place specifying data of the partial area stored in the second storage unit and the identification information of the access point stored in the third storage unit through the first processor when the identification information of the access point detected from the signal received by the reception unit is stored in the third storage unit.

2. The information processing apparatus according to claim 1, wherein

in the process of updating, the second processor transfers the detected identification information of the access point to the first processor, and

the first processor extracts information for updating the place specifying data of the partial area of the second storage unit and the identification information of the access point in the third storage unit from the place specifying data in the first storage unit based on the place of the access point specified by the transferred identification information.

3. The information processing apparatus according to claim 2, wherein

when the place is not specified by the place specifying data of the partial area stored in the second storage unit, the second processor executes a process of deleting the place specifying data of the partial area stored in the second storage unit to release a storage area of the second storage unit so as to suppress the process of specifying the place, of extending a storage area of the third storage unit to include the released storage area of the second storage unit, and of storing the identification information of the access point in the extended third storage unit through the first processor.

4. The information processing apparatus according to claim 3, further comprising

a second reception unit that receives a signal from a communication base station connected to a mobile phone network, wherein

the place specifying data of the master data stored in the first storage unit includes base station ID information of the communication base station, and

when the storage area of the third storage unit is extended, the second processor executes a process of detecting a change in a base station ID of the communication base station based on the signal received by the second reception unit, and a process of updating the identification information of the access point in the third storage unit based on the base station ID after the detected change.

5. The information processing apparatus according to claim 4, wherein

the first processor executes a place specifying process of specifying the place by the master data of the place specifying data stored in the first storage unit based on the signal received by the reception unit, and a process of extracting the place specifying data of the partial area stored in the second storage unit and the identification information of the access point stored in the third storage unit based on the place specified in the place specifying process.

6. The information processing apparatus according to claim 5, wherein

the first processor executes a process of restoring a power consumption state from a power saving state in response to a request of the second processor, and of shifting the power consumption state to the power saving state as a result of extraction of the place specifying data of the partial area stored in the second storage unit or extraction of the identification information of the access point stored in the third storage unit from the place specifying data in the first storage unit.

7. A non-transitory computer readable recording medium recorded with a program that causes a second processor in a computer to execute processing comprising:

the computer comprises a reception unit that receives a signal from an access point;

a first storage unit that stores master data of place specifying data including identification information of the access point detected from the signal received by the reception unit in each place and including strength of the received signal;

a first processor that accesses the first storage unit;

a second storage unit that stores place specifying data of a partial area extracted by the first processor from the place specifying data in the first storage unit;

a third storage unit that stores the identification information of the access point detected in a place around a place specified by the place specifying data of the extracted partial area; and

a second processor that accesses the second storage unit and the third storage unit;

specifying the place by the place specifying data of the partial area stored in the second storage unit based on the signal received by the reception unit; and

updating the place specifying data of the partial area stored in the second storage unit and the identification information of the access point stored in the third storage unit through the first processor when the identification information of the access point detected from the signal received by the reception unit is stored in the third storage unit.

8. An information processing method by which a second processor in a computer executes processing comprising:

the computer comprises a reception unit that receives a signal from an access point;

a first storage unit that stores master data of place specifying data including identification information of the access point detected from the signal received by the reception unit in each place and including strength of the received signal;

a first processor that accesses the first storage unit;

a second storage unit that stores place specifying data of a partial area extracted by the first processor from the place specifying data in the first storage unit;

a third storage unit that stores the identification information of the access point detected in a place around a place specified by the place specifying data of the extracted partial area; and

a second processor that accesses the second storage unit and the third storage unit;

specifying the place by the place specifying data of the partial area stored in the second storage unit based on the signal received by the reception unit; and

updating the place specifying data of the partial area stored in the second storage unit and the identification information of the access point stored in the third storage unit through the first processor when the identification information of the access point detected from the signal received by the reception unit is stored in the third storage unit.