System and method of alternative tracking upon disabling of monitoring device
A method and system for locating a fugitive with a disabled personal monitoring device is provided. The method includes: providing a monitored individual with a personal monitoring device being: (a) secured to the monitored individual, (b) configured to determine a location of the personal monitoring device at particular times, and (c) configured to upload the determined location of the personal monitoring device at the particular times; storing the uploaded location data to thereby create a movement history of the monitored individual; cross referencing at least a portion of the movement history with a record of detected probe signals emitted by wireless devices to thereby identify wireless devices that the personal monitoring device has encountered; selecting, based on at least one predetermined rule, a wireless device identified by the cross referencing; determining a relevant location of the wireless device; and notifying a supervising authority of the relevant location.
1. A method for locating a fugitive with a disabled personal monitoring device, comprising:
securing a personal monitoring device to a monitored individual, each personal monitoring device being configured to (a) determine a location of the personal monitoring device at particular times, and (b) upload, as location data, the determined location of the personal monitoring device;
receiving and storing the uploaded location data from the personal monitoring device to thereby create a movement history of the personal monitoring device of the monitored individual;
cross referencing at least a portion of the movement history of the personal monitoring device with a record of detected probe signals emitted by wireless devices to thereby identify any wireless devices that emitted probe signals at a location that was proximate to the location of personal monitoring device;
selecting, from the results of the cross referencing, a wireless device identified by the cross referencing that had significant contact per predefined rules to the portable monitoring device;
determining a relevant location of the selected wireless device;
notifying a supervising authority of the relevant location.
2. The method of claim 1 , wherein the receiving is in response to a signal representing that the personal monitoring device has been disabled.
3. The method of claim 1 , wherein:
the receiving, cross referencing and selecting occur on a predetermined schedule; and
the determining is in response to a signal representing that the personal monitoring device has been disabled.
4. The method of claim 1 , wherein the at least a portion of the movement history includes a plurality of location/time entries, and the cross referencing comprises identifying in the record any wireless devices that were detected for emitting probe signals within range of a sensor proximate to any of the location/time entries at a corresponding time.
5. The method of claim 4 , wherein the sensor is part of a deployed sensor network.
6. The method of claim 4 , wherein the sensor is part of the personal monitoring device, and the personal monitoring device is configured to upload data received by the sensor.
7. The method of claim 1 , wherein the selecting comprises prioritizing wireless devices for which the personal monitoring device had more significant contact than other wireless devices with less contact.
8. The method of claim 1 , wherein the selecting comprises prioritizing wireless devices detected during nighttime hours.
9. The method of claim 1 , wherein the relevant location is a last known location of the wireless device.
10. The method of claim 1 , wherein the relevant location is a last known location of the wireless device as reflected by the record of detected probe signals.
11. The method of claim 1 , wherein the relevant location comprises one of: work, home, family member's home, unknown location.
12. The method of claim 1 , wherein the wireless device is a cellular phone.
13. The method of claim 12 , wherein the probe signals are transmitted by the cellular phone to connect with internet access points to access the internet.
14. A system for locating a fugitive with a disabled personal monitoring device, comprising:
a personal monitoring device being configured to (a) determine a location of the personal monitoring device at particular times, and (b) upload, as location data, the determined location of the personal monitoring device and (c) be secured to a monitored individual;
a central monitoring location programmed to perform operations comprising:
receiving and storing the uploaded location data from the personal monitoring device to thereby create a movement history of the personal monitoring device of the monitored individual;
cross referencing at least a portion of the movement history of the personal monitoring device with a record of detected probe signals emitted by wireless devices to thereby identify any wireless devices that emitted probe signals at a location that was proximate to the personal monitoring device;
selecting, from the results of the cross referencing, a wireless device identified by the cross referencing that had significant contact per predefined rules to the portable monitoring device;
determining a relevant location of the selected wireless device;
notifying a supervising authority of the relevant location.
15. The system of claim 14 , wherein the receiving is in response to a signal representing that the personal monitoring device has been disabled.
16. The system of claim 14 , wherein:
the receiving, cross referencing and selecting occur on a predetermined schedule; and
the determining is in response to a signal representing that the personal monitoring device has been disabled.
17. The system of claim 14 , wherein the at least a portion of the movement history includes a plurality of location/time entries, and the cross referencing comprises identifying in the record any wireless devices that were detected for emitting probe signals within range of a sensor proximate to any of the location/time entries at a corresponding time.
18. The system of claim 17 , wherein the sensor is part of a deployed sensor network.
19. The system of claim 17 , wherein the sensor is part of the personal monitoring device, and the personal monitoring device is configured to upload data received by the sensor.
20. The system of claim 14 , wherein the selecting comprises prioritizing wireless devices for which the personal monitoring device had more significant contact than other wireless devices with less contact.
21. The system of claim 14 , wherein the selecting comprises prioritizing wireless devices detected during nighttime hours.
22. The system of claim 14 , wherein the relevant location is a last known location of the wireless device.
23. The system of claim 14 , wherein the relevant location is a last known location of the wireless device as reflected by the record of detected probe signals.
24. The system of claim 14 , wherein the relevant location comprises one of: work, home, family member's home, unknown location.
25. The system of claim 14 , wherein the wireless device is a cellular phone.
26. The system of claim 25 , wherein the probe signals are transmitted by the cellular phone to connect with internet access points with internet access points to access the internet.