THROUGH-THE-OBSTACLE RADAR SYSTEM AND METHOD OF OPERATION

• US 20090135045A1
• Filed: 11/17/2008
• Published: 05/28/2009
• Est. Priority Date: 11/28/2007
• Status: Active Grant

• Current Assignee: Camero-Tech, Ltd. (SK Group)
• Original Assignee: Camero-Tech, Ltd. (SK Group)
• Inventors: BEERI, Amir
• Granted Patent: US 8,098,186 B2
• Time in Patent Office: Days
• US Class Current: 342/22
• 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 13/284 using coded pulses
• CPC Class Codes: G01S 13/888 through wall detection
• CPC Class Codes: G01S 7/415 Identification of targets based on measurements of movement associated with the target

Abstract

There are provided a through-the-obstacle radar system and method of operating thereof comprising recording signals and/or derivatives thereof collected during a certain substantial monitoring period, and using the recorded information for generating patterns informative of a monitoring scene. There are further provided a method of motion detection based on through-the-obstacle radar and the system thereof. The method comprises collecting signals and/or derivatives thereof acquired by the radar system during a certain substantial monitoring period and accommodating respective records, said records comprising information characterizing the signals and/or derivatives thereof and information indicative, at least, of the time the signals were obtained; processing the accommodated records and generating at least one histogram characterizing a normative motion level at different time intervals; comparing an actual motion level with the level in the normative histogram corresponding to the same time intervals; and recording the motion as detected if its actual level fits a certain relationship with the corresponding level in the normative histogram.

Claims

1. A through-the-obstacle radar system configured to record signals and/or derivatives thereof collected during a certain substantial monitoring period, and to use the recorded information for generating patterns informative of a monitoring scene.

7. The system of claim 1 wherein at least one pattern is generated in the form of a histogram characterizing the level of motion at certain time intervals within the monitoring period.

8. The system of claim 1 wherein at least one pattern is generated in the form of a two-dimensional top-view activities map.

9. The system of claim 1 wherein at least one of the generated patterns is selected from a group comprising:

normative and/or actual behavior patterns, normative and/or actual activities patterns, normative and/or actual scene layout related patterns.

10. The system of claim 1 wherein at least one of the generated patterns and/or derivatives thereof is implemented in a radar imaging system as perceiving image ingredients to be displayed together with an image.

2. A through-the-obstacle radar system comprising:

a) a recording unit operatively coupled to a processor and configured to accommodate records of one or more acquired signals and/or derivatives thereof collected during a certain substantial monitoring period, said records comprising information characterizing the signals and/or derivatives thereof and information indicative, at least, of the time the signals were obtained;

b) a processor configured to receive records accommodated in the recording unit during a certain period of monitoring, and to generate patterns informative of a monitoring scene during the monitoring period;

c) a storing unit operatively coupled to the processor and configured to accommodate one or more patterns generated by the processor and/or received from one or more external sources.

3. The system of claim 2 wherein the processor is further configured to analyze information characterizing a monitoring period X and to generate one or more patterns characterizing a period Y, the period Y being a part of the period X.

4. The system of claim 2 wherein the processor is further configured to compare the generated pattern with a normative pattern, and to cause a response to be activated when the comparing patterns have a predetermined relationship.

5. The system of claim 2 wherein the processor is further configured to detect an unusual pattern without a priori knowledge of the nonnative pattern.

6. The system of claim 2 wherein the processor is further configured to calculate probability of motion in a certain area, and to generate a layout of a building and interior in accordance with said calculated probability.

11. A motion detection system based on through-the-obstacle radar, the system comprising:

a) a recording unit operatively coupled to a processor and configured to accommodate records of one or more acquired by the radar signals and/or derivatives thereof collected during a certain substantial monitoring period, said records comprising information characterizing the signals and/or derivatives thereof and information indicative, at least, of the time the signals were obtained; and

b) the processor configured to receive records accommodated in the recording unit during a certain period of monitoring, to generate at least one histogram characterizing normative motion level at different time intervals, to compare an actual motion level with the level in the normative histogram corresponding to the same time intervals, and to record the motion as detected if its actual level fits a certain relationship with the corresponding level in the nonnative histogram.

12. The system of claim 11 wherein the processor is further configured to notice an intrusion event if a predefined relationship between the actual and normative motion levels is detected.

13. A method of operating a through-the-obstacle radar system, the method comprising:

a) collecting signals and/or derivatives thereof acquired by the radar system during a certain substantial monitoring period and accommodating respective records, said records comprising information characterizing the signals and/or derivatives thereof and information indicative, at least, of the time the signals were obtained; and

b) processing to accommodated records and generating patterns informative of a monitoring scene during the monitoring period.

14. The method of claim 13 wherein the processing further comprises analyzing information characterizing a monitoring period X and to generate one or more patterns characterizing a period Y, the period Y being a part of the monitoring period X.

15. The method of claim 13 wherein the processing further comprises comparing the generated pattern with a normative pattern, and causing an activation of a pre-configured response when the comparing patterns have a predetermined relationship.

16. The method of claim 13 wherein the processing further comprises detecting an unusual pattern without a priori knowledge of the normative pattern.

17. The method of claim 13 wherein the processing further comprises calculating probability of motion in certain area, and generating a layout of a building and interior in accordance with said calculated probability.

18. The method of claim 13 wherein at least one pattern is generated in a form of a histogram characterizing level of motion at certain time intervals within the monitoring period.

19. The method of claim 13 wherein at least one pattern is generated in the form of a two-dimensional top-view activities map.

20. The method of claim 13 wherein at least one of the generated patterns is selected from a group comprising:

normative and/or actual behavior patterns, normative and/or actual activities patterns, normative and/or actual scene layout related patterns.

21. The method of claim 13 wherein at least one of the generated patterns and/or derivatives thereof is implemented in a radar imaging system as perceiving image ingredients to be displayed together with an image.

22. A method of motion detection based on through-the-obstacle radar, the method comprising:

a) collecting signals and/or derivatives thereof acquired by the radar system during a certain substantial monitoring period and accommodating respective records, said records comprising information characterizing the signals and/or derivatives thereof and information indicative, at least, of the time the signals were obtained;

b) processing the accommodated records and generating at least one histogram characterizing a normative motion level at different time intervals;

c) comparing an actual motion level with the level in the normative histogram corresponding to the same time intervals; and

d) recording the motion as detected if its actual level fits a certain relationship with the corresponding level in the normative histogram.

23. The method of claim 22 wherein the processing further comprises generating a notice of an intrusion event if a predefined relationship between the actual and normative motion levels is detected.