Surveillance of stress conditions of persons using micro-impulse radar

• US 8,884,813 B2
• Filed: 12/30/2010
• Issued: 11/11/2014
• Est. Priority Date: 01/05/2010
• Status: Active Grant

• Current Assignee: Deep Science LLC (Intellectual Ventures LLC)
• Original Assignee: The Invention Science Fund I, L.L.C. (Intellectual Ventures LLC)
• Inventors: Bangera, Mahalaxmi Gita, Hyde, Roderick A., Ishikawa, Muriel Y., Jung, Edward K. Y., Kare, Jordin T., Leuthardt, Eric C., Myhrvold, Nathan P., Sweeney, Elizabeth A., Tegreene, Clarence T., Tuckerman, David B., Weaver, Thomas, Wood, Lowell L. Jr., Wood, Victoria Y. H.
• Primary Examiner(s): BYTHROW, PETER M
• Application Number:
  US12/930,254
• Publication Number:
  US 20120116202A1
• Time in Patent Office: 1,412 Days
• Field of Search: 342 52- 58, 342 89- 97, 342/175, 342/189, 342/197, 340/573.1, 340/573.4, 340/573.5, 340/573.7, 382/103, 382/115, 600/453, 352 52- 58, 352 89- 97, 352/175, 352/189, 352/197
• US Class Current: 342/90
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/0507 using microwaves or terahertz waves
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/113 occurring during breathing
• CPC Class Codes: A61B 5/165 Evaluating the state of mind, e.g. depression, anxiety
• CPC Class Codes: A61B 5/7253 characterised by using transforms
• CPC Class Codes: G01S 13/0209 Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband
• CPC Class Codes: G01S 13/52 Discriminating between fixed and moving objects or between objects moving at different speeds
• CPC Class Codes: G01S 13/867 Combination of radar systems with cameras
• CPC Class Codes: G01S 13/88 Radar or analogous systems specially adapted for specific applications electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00
• CPC Class Codes: G01S 13/887 for detection of concealed objects, e.g. contraband or weapons
• CPC Class Codes: G01S 7/412 based on a comparison between measured values and known or stored values
• CPC Class Codes: G01S 7/415 Identification of targets based on measurements of movement associated with the target

Abstract

One or more computers are configured to determine a human stress condition corresponding to one or more physical or physiological parameters extracted from one or more micro-impulse radar (MIR) signals.

Claims

1. A surveillance system, comprising:

a micro-impulse radar configured to survey a region; and

a controller configured to,

receive an input signal from the micro-impulse radar,

extract from the signal one or more physical or physiological attributes of more

than one person corresponding to a human stress condition,

compare the extracted one or more physical physiological attributes of the more than one person corresponding to the human stress condition to calculate a statistical average value of the one or more physical or physiological attributes corresponding to the human stress condition,

determine if the extracted one or more physical or physiological attributes corresponding to the human stress condition indicate a predicted human stress condition for at least a single person in the region at least partially based on the statistical average value by determining if the extracted one or more physical or physiological attributes corresponding to the human stress condition for the at least a single person in the region fall outside of a predetermined deviation from the statistical average value, and

base at least in part on the determination of whether or not the one or more physical or physiological attributes corresponding to the human stress condition for the at least a single person fall outside of the predetermined deviation, output a notification signal.

2. The surveillance system of claim 1, wherein the one or more physical or physiological attributes includes one or more physical and one or more physiological attributes.

3. The surveillance system of claim 1, wherein the controller is further configured to receive or determine a range of the one or more physical or physiological attributes corresponding to normal range of human stress conditions in the region.

4. The surveillance system of claim 1, wherein the controller is further configured to determine if the predicted human stress condition is anomalous compared to a normal range of human stress conditions in the region.

5. The surveillance system of claim 1, further comprising a notification interface operatively coupled to the controller;

and

wherein the notification signal is output via the notification interface.

6. The surveillance system of claim 5, wherein the notification interface includes an apparatus configured to project an optical designation onto or near a person exhibiting an anomalous predicted stress condition.

7. The surveillance system of claim 1, further comprising:

a camera operatively coupled to the controller and configured to capture a still or video image of a person probed by the micro-impulse radar.

8. The surveillance system of claim 7, wherein the controller is further configured to display the still or video image of the person probed by the micro-impulse radar via a notification interface.

9. The surveillance system of claim 1, wherein the controller is further configured to determine or infer an identity of a person in the region.

10. The surveillance system of claim 9, wherein a magnitude of the predicted stress condition is determined as a function of the identity of the person.

11. The surveillance system of claim 7, further comprising:

a computer display; and

wherein the controller is configured to output to the computer display an image of the person in the region and a corresponding indicator of the predicted human stress condition corresponding to the person in the region.

12. The surveillance system of claim 1, wherein the controller is further configured to determine a threat condition corresponding to the predicted human stress condition.

13. The surveillance system of claim 1, wherein the controller is configured to determine whether to output the notification signal as a function of time of day, a security threat status, or a security clearance status of a person in the region.

14. The surveillance system of claim 1, wherein the controller is further configured to predict the human stress condition.