EMERGENCY SERVICES BASED ON LOCATION INFORMATION STATISTICS

• US 20070279218A1
• Filed: 05/10/2007
• Published: 12/06/2007
• Est. Priority Date: 05/31/2006
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Daniel, Patrick
• Granted Patent: US 8,750,822 B2
• Time in Patent Office: Days
• US Class Current: 340/539.130
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 76/50 for emergency connections
• CPC Class Codes: H04W 8/08 Mobility data transfer

Abstract

A system and a method for tracking users in a closed environment even in the case the available system for locating a user is an idle state is based on the use of a system which comprises a database for storing the location of the users measured at regular time interval within that closed environment. Such a system comprises further a processor for estimating the possible location of a registered user at any time according to the different stored measured location. Such estimation can be advantageously a statistical analysis corresponding to some daily geographical footprint of the registered user. The system comprises also a decision unit to provide the possible location of the registered user estimated for a specific time when required in the case the location measurement system is in an idle state. In that case, the estimated possible location can be forwarded to some PSAP.

Claims

1. A system for tracking users in a closed environment, the system comprising

a database for registering the different possible users within that closed environment;

a location measurement system for locating the users within that closed environment;

the system for tracking users wherein it comprises further

a database for storing the location of the users measured at regular time interval within that closed environment;

a processor for estimating the possible location of a registered user at any time according to the stored measured location;

a decision unit to provide the possible location of the registered user estimated for a specific time when required in the case the location measurement system is in an idle state.

2. The system for tracking users according to claim 1 wherein the location measurement system consists of a wireless network infrastructure spread over the closed environment.

3. The system for tracking users according to claim 1 wherein in an emergency situation the estimated possible location is forwarded to some Public Safety Answering Point [PSAP].

4. The system for tracking users according to claim 1 wherein in an emergency situation the estimated possible location for a specific time of all the registered users are concatenated to obtain a picture of the required resources.

5. A method for tracking users in a closed environment comprising the steps

to register different possible users within that closed environment;

to measure at regular time interval the location of the users within that closed environment using some location measurement system;

while the method is whereby the further steps

to store the different location measurements of the users with respect

to the time of the performed measurement;

to estimate the possible location of the registered users at any time within the closed environment according to the stored measured location;

to provide the possible location of the registered user for a specific time when required in the case the used location measurement system is in an idle state.

6. The method according to claim 5 whereby refining the estimation at regular time using the newly stored location measurements of the users.

7. The method according to claim 5 whereby performing the step to estimate the possible location of the registered users in a batch mode processing.

8. A computer readable medium comprising codes to be executed on a terminal for tracking users in a closed environment, while the codes are wherein some codes when executed estimates the possible location of registered users at any time within closed environment using a database with stored location measurement of the users performed at regular time interval within that closed environment, the resulting estimation being forwarded to some application requiring the location of the user.