PERSONAL SECURITY SYSTEM

Abstract

A personal security system takes advantage of location determination capabilities of a mobile communication services to provide personal security features to one or more communities of users. One method includes a user initiating a security period from a mobile device and specifying an end condition for that security period. If the user does not terminate the security period, at the end of the security period a notification is sent with information characterizing the user and a location associated with the user.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No. 60/784,276 filed Mar. 20, 2006, which is incorporated herein by reference.

BACKGROUND

This invention relates to a system for personal security.

Cellular telephone systems today typically provide some sort of location tracking of users, for example, to determine the location of a user that dials an emergency number (e.g., using E911). In some communities of users, such as students on a university campus, use of cellular telephones has become ubiquitous, with users using text messaging and other applications to stay “connected.”

SUMMARY

In one aspect, in general, a personal security system takes advantage of location determination capabilities of a mobile communication services to provide personal security features to one or more communities of users.

In another aspect, in general, a method includes a user initiating a security period from a mobile device and specifying an end condition for that security period. If the user does not terminate the security period, at the end of the security period a notification is sent with information characterizing the user and a location associated with the user.

In another aspect, in general, a method includes receiving communication indicative of initiation of a security period associated with a user of a mobile device. If the user does not terminate the security period, at the end of the security period sending a notification with information characterizing the user and a location associated with the user.

In another aspect, in general, a system includes a communication server that includes a communication link to a location based server for obtaining location information associated with mobile devices for users in a community. The communication server is configured to receive communication indicative of initiation by a user of the mobile devices of a security period, and if the user does not terminate the security period, at the end of the security period send a notification with information characterizing the user and a location associated with the user.

Aspects can include one or more of the following features.

Receiving the communication includes receiving a specification of an end condition for the security period. The end condition may include an end time for the security period. The method may include timing the security period to determine the end of the security period.

The user is prompted at the end of the security period to terminate the security period.

Sending the notification includes sending the notification to a security service associated with the user.

Information characterizing a location associated with the user is obtained from a mobile communication system servicing the mobile device. For example, the mobile device is a cellular telephone and the mobile communication system is a cellular telephone system.

The user was previously enrolled, for example, by receiving personal information associated with the user.

Sending the notification includes sending personal information associated with the user.

The security period can have a user-specified duration, and the end condition for the period corresponds to expiration of a timer for the period.

The user initiates the security period using a mobile device, and optionally terminates the security period using the mobile device. The mobile device can be a mobile telephone.

The location associated with the user can include a GPS-based location, for example, determined by a communication system to which the mobile device is coupled

In another aspect, in general, mobile devices are provided to users in a set of communities of users. Communication is monitored at a server from the users indicative of initiation and termination of security periods associated with the users. Based on the monitored communication, notifications are sent with information characterizing users and locations associated with said users. The recipients of the notifications are determined based on the corresponding communities to which the users belong. The notifications may be indicative of possible security conditions associated with the users. Sending of the notifications may be based on expiration of security periods prior to receipt of corresponding communication indicative of termination of the security periods.

Aspects can have advantages that include one or more of the following:

Faster and more effective intervention is possible. Campus safety can be immediately notified on an incident, the location and critical information such as the student's description and any medical issues. Students are also provided with a one button “panic call” option prompting an immediate response.

The system can eliminate “consensual” arguments in acquaintance assault because activation of the system is a clear sign that the student was uncomfortable in a situation.

Crimes in progress may be interrupted when the system timer expires campus safety immediately calls the student's phone, interrupting any assault

Clery Act Timely Warnings are made possible so that universities are able to instantly broadcast warnings via TXT messages.

Areas of concern on campus may be highlighted. Historical reporting on areas where the system was initiated provides universities with a clear picture of areas where students feel uncomfortable and at what times of day, enabling proactive measures such as increased patrols or enhanced lighting.

Other features and advantages of the invention are apparent from the following description, and from the claims.

DESCRIPTION OF DRAWINGS

FIG. 1 is a block diagram of a personal security system

FIG. 2 is a graphical display for security personnel.

DESCRIPTION

Referring to FIG. 1, a personal security system makes use of personal mobile handsets 128 coupled to a mobile communication system 120. Each handset 128 is associated with a corresponding user of the system. In some examples, the handsets are cellular telephones that are coupled by a mobile telephone system, such as a GSM, CDMA or and iDen based system.

Very generally, the system makes use of a communication server 110, one function of which is to determine when a security situation may exist for one of the users, and to then alert an appropriate security service 134. The security service then determines if there is truly a security situation, for example, by communicating with the user over the handset or investigating in person.

In order to aid the security service, examples of the system make use of various types of location based services. For example, the mobile communication system includes or has associated with it a location based server (LBS) 124, which is able to determine the location of a particular handset 128. The communication server 110 can query the LBS 124 (e.g., as a software based request over the Internet) to determine the location of a particular handset. Different examples of the security system make use of one or more types of location determination approaches. One type of location determination approach uses Global Positioning System (GPS) functionality that is built into the handset, optionally assisted by fixed elements of the mobile communication system 120 in an Assisted GPS (AGPS) approach. Other location determination approaches use signal strength and/or direction information in triangulation approaches based on transmitted or received radio signals from the mobile communication system. Yet other approaches are based on cell identification in a cellular telephone network.

Some examples of the system provide services to multiple different communities 130 of users. Communities can be various associations of users, which may each be served by their own security service 134. An example of a community is a university, with the security service being the campus police service for that university. In such an example, different universities typically have separate campus police services.

Note that in some examples, the communities may not be geographically separated. For example, urban universities may have student communities that are very close to one another (e.g., students of New York University and Columbia University), and the users is such communities may operate in overlapping geographic regions. The system supports configurations in which the users are serviced by the security service for their community, regardless of their actual geographic location.

In some examples, the personal security system supports a personal security button on the handset. Various approaches to configuring the handset to provide such a button are possible, including through provisioning by the operator of the mobile communication system and by downloading software to a configurable device. For example, the “home” or “dashboard” screen of a mobile telephone can provide direct “one touch” access to security services.

When a user activates the personal security button, the handset 128 sends a message to the communication server 110. Various approaches to sending the message are used in different examples of the system. Some examples use a Short Message Service (SMS) provided through the mobile communication system. When the communication server 110 receives the message, it queries the LBS 124 to determine the location of the sending handset. In some examples the LBS already has access to location information for the handset that is maintained by the communication system, while in other examples, it in turn queries the communication system which determines the handset's location. The LBS returns the handset's location to the communication server 110, which then contacts the appropriate security service 134 for the user's community.

Different examples of the system use various approaches to enrollment of users. In some approaches, a web-based approach is used in which a user provides enrollment information to the communication server. Such information includes an identification of the user's community 130, and optionally personal information that might be useful to the security service in an emergency. In other examples, the users enroll through a system operated by the community, and personal information is maintained privately within the community. The community provides the communication server with identifications of the handsets within its community. Example of personal information that may be useful to a security service is a photograph of the user and physical data (e.g., gender, height, weight, hair color, etc.)

Some mobile communication systems 120 require that a user authorize particular parties so that they can access their location information, for example, through the LBS 124. In such systems, as part of the enrollment process the users provide the necessary authorization, which is communicated to the LBS and/or the mobile communication system.

In some examples, the personal security system supports a mode that can be used when a user expects to be at some risk for an upcoming interval of time. For example, a university student may need to cross a campus late at night and feel at risk walking along isolated paths.

Some examples of such a mode use a timer-based approach. Generally, when the user is about to initiate an interval of time during which they may feel at risk, they initiate the timing of an interval by the security system. If the user “checks in” before the expiry of the interval, or alternatively in response to a prompt by the system at the end of the interval, the user is deemed to be safe. On the other hand, if the user does not check in or does not respond to a prompt, or optionally if the handset is not accessible from the communication system 120 during the interval, the security service for that user's community is notified along with the last known location of the handset.

Referring to FIG. 1, a sequence of steps for a previously registered user of the system are described in such an example:

Step 1: The user notifies the communication server 110 that they are about to start an at-risk interval. In different examples, this step is carried out in a variety of ways. For example, the handset may have a browser (e.g., a Wireless Application Protocol, WAP, browser) that accesses an application at the communication server that provides a graphical interface for display on the handset. The graphical interface permits the user to enter the duration of the interval (or alternatively the end time of the interval). In some examples, the user has provided a Personal Identification Number (PIN) to be used to check in—in other examples the user provides a check-in PIN at the start of the interval. In some examples, a software application has already been loaded on the handset, and the application sends data messages to the communication server 110 to initiate the interval. In other examples, communication techniques such as SMS, or voice based (e.g., using speech recognition) or touch-tone (DTMF) based interfaces are user by the user to inform the communication server that the interval is about to start. In some examples, the communication between the handset and the communication server is direct, while in other examples, the communication is mediated by a system operated by the user's community. When the communication server determines that the user has started an interval, it begins a count-down timer that will expire at the end of the interval.

Step 2a: Prior to the end of the interval, the user can communicate with the communication server to check in and terminate the interval. With PIN-based approaches, the user enters their secret PIN, which was recorded as part of a registration procedure, or was provided at the start of the interval. In some examples, the user has the option of entering a special PIN that indicates that they are in danger. For example, suppose an attacker forces a user to terminate the interval, the user can enter a special PIN, such a pre-arranged PIN or the normal PIN with a special suffix (e.g., adding a 1 at the end of the PIN). This can signal the communication server that the user is in danger without alerting the attacker.

Step 2b: If at the end of the interval the user has not yet check in, the communication server can act on the possibility that the user is in danger. In some examples, the server first communicates automatically with the user. For example, the server may interact with an application executing on the handset, send a SMS-based message that needs to be responded to, or may a telephone call requiring voice or text entry of the PIN.

Step 3: If the user has not checked in prior to the expiry of the planned interval, or has not responded to the prompt from the system at the end of the interval in examples that are configured to provide such a prompt, the communication server 110 requests location information for the user's handset.

Step 4: The LBS 124 determines the last known location of the user, optionally with the time the location determination was made. The LBS then send this location information to the communication server 110. The location information may take various forms, such as latitude and longitude.

Step 5: The communication server 110 notifies the security service 134 for the user. In examples in which the communication server 110 serves many communities, the server has been configured with at least information identifying the particular security service to notify (or alternatively, multiple security services may be notified and only the one responsible for that handset acts on the notification). In examples in which the communication server has additional personal information related to the user (e.g., name, photo, etc.) it sends this information along with the notification. In examples in which the security service has access to personal information for that user, it accesses that information in response to the notification.

In some examples, security personnel, for example at a command station or at a mobile device for personnel on patrol, are provided with a display associated with the user and the current risk. For example, referring to FIG. 2, a graphical display with a map showing the user's location (or last known location), a photograph of the user, as well as text-based personal information are displayed to the security personnel.

Step 6: The security personnel attempt to interact with the user, for example, by calling their handset to establish person-to-person communication, and/or by dispatching personnel to the user's location to provide assistance. When appropriate, the security service may notify other security organizations, such as a local police department, to help handle the incident.

In some examples, when a user initiates an at-risk interval, the communication server may initially inform the security service and provide location information obtained from the LBS on an ongoing basis. The security service can maintain a display, for example showing their locations on a map, of users as they travel. In some examples, users may have the option of permitting or denying such tracking, for example, for privacy reasons. A concentration of users in a particular area may be addressed by dispatching preventive patrols into the area. Also, historical information may be logged, for example, to identify areas and time in which users feel at risk or in which incidents actually occur. Such historical information may used, for example, to improve users' sense of security in those areas, for example though physical improvements (e.g., lighting) or increased patrols.

In some examples, the security period may be defined using other and/or additional criteria than time duration or end time. For example, a user may identify a route (e.g., using a destination building number) and the security period is defined as the time until the user reaches the destination. In such an example, the end of the security period may be defined by the server as a reasonable time needed to reach the destination. In some examples, the communication server may determine that there may be a possible security condition if the user deviates significantly from a path to the declared destination.

In some examples, security periods may be initiated or defined by entities other than the user. For example, a parent may require that a child check in at a particular time (e.g., at midnight) or at a set of prespecified times (e.g., every two hours). In addition or instead of notifying a security service, the parent may be notified if the child fails to check in. That is, the parent may serve the role of the security service. Similarly, an elderly parent may need to check in periodically or else their adult child or other caregiver is notified with information about their location. In some examples, a child may initiate the security period with the parent being notified if they fail to terminate the period or check in when prompted.

In some examples, a security period may be initiated by a passive activity of the user. For example, a system may detect that a user has entered a predefined geographic area (e.g., going off campus, leaving a nursing home) and may have to check in within a certain period of time (e.g., within one hour).

In some examples, the user's community security service is notified regardless of the user's geographic location. For example, a user from a university in California may be visiting New York City yet their security-related notifications are sent back to California. This approach can permit their university security service to provide additional information to local New York police. In other examples, the security service that is notified may depend on the user's geographic location. For example, universities may cooperate and a student visiting another university's campus may result in a notification to the security service of the visited university in addition or instead of the user's home university.

In some examples, one communication server 110 may interact with multiple mobile communication systems. For example, users in a single community 130 or in different communities 130 may be served by different mobile telephone carriers.

In some version of the system, additional community services 136 may take advantage of the capabilities of the communication server. For example in a university situation, a community service may include an academic group that provides class-related notifications (e.g., class cancellation, in-class surveys, etc.). Another community service may include access to transportation information, such a campus bus routes, schedules, and expected arrival time information. Other examples include broadcasting of campus-wide alerts, which may be security related.

In the description above, in some examples of the system a university student community is provided as an example of users served by the system. Other examples of communities may be served by examples of the system. For example, personnel on a military base, a special interest group, a church group, residents of a housing development, inhabitants of cities, towns, hotel guests, etc. can each form a community served by an example of a personal security system.

In some examples, capabilities described are implemented in software, which may be stored on computer readable media or embodied on signals propagating through communication media (e.g., over wired or wireless networks). The software may include instructions, such as machine instructions, programming language or interpreter statements, instructions for virtual machines (e.g., Java), or other forms of instructions. The software may be distributed, for example, with some components execution on the handsets and other components executing at fixed servers.

It is to be understood that the foregoing description is intended to illustrate and not to limit the scope of the invention, which is defined by the scope of the appended claims. Other embodiments are within the scope of the following claims.

Claims

1. A method comprising:

receiving communication indicative of initiation of a security period associated with a user of a mobile device; and

if the user does not terminate the security period, at the end of the security period sending a notification with information characterizing the user and a location associated with the user.

2. The method of claim 1 wherein receiving the communication includes receiving a specification of an end condition for the security period.

3. The method of claim 2 wherein the end condition includes an end time for the security period.

4. The method of claim 2 further comprising timing the security period to determine the end of the security period.

5. The method of claim 1 further comprising prompting the user to terminate the security period at the end of the security period.

6. The method of claim 1 wherein sending the notification includes sending the notification to a security service associated with the user.

7. The method of claim 1 further comprising obtaining information characterizing a location associated with the user from a mobile communication system servicing the mobile device.

8. The method of claim 7 wherein the mobile device comprises a cellular telephone and the mobile communication system comprises a cellular telephone system.

9. The method of claim 1 further comprising:

enrolling the user, including receiving personal information associated with the user.

10. The method of claim 9 wherein sending the notification includes sending the personal information associated with the user.

11. A method comprising:

providing mobile devices to users in a plurality of communities of users;

monitoring communication at a server from the users indicative of initiation and termination of security periods associated with the users; and

based on the monitored communication, sending notifications with information characterizing users and locations associated with said users, recipients of the notifications being determined based on the corresponding communities to which the users belong.

12. The method of claim 11 wherein the notifications are indicative of possible security conditions associated with the users.

13. The method of claim 11 wherein the sending of the notifications is based on expiration of security periods prior to receipt of corresponding communication indicative of termination of the security periods.

14. A system comprising:

a communication server including a communication link to a location based server for obtaining location information associated with mobile devices for users in a community;

wherein the communication server is configured to receive communication indicative of initiation of a security period associated with a user of the mobile devices, and if the user does not terminate the security period, at the end of the security period send a notification with information characterizing the user and a location associated with the user.

15. The system of claim 14 further comprising the plurality of mobile devices configured for communication with communication server.

16. The system of claim 14 further wherein the communication server is further configured to receive a communication initiated by the user during the security period and in response to send a notification with information characterizing the user and a location associated with the user.

17. Software comprising instructions embodied on a machine-readable medium for causing a processing system to:

receive communication indicative of initiation of a security period associated with a user of a mobile device; and

if the user does not terminate the security period, at the end of the security period send a notification with information characterizing the user and a location associated with the user.