Barrier detection system and method

• US 9,151,855 B2
• Filed: 03/19/2012
• Issued: 10/06/2015
• Est. Priority Date: 03/17/2011
• Status: Expired due to Fees

• Current Assignee: Actitect LLC
• Original Assignee: Ardmore Associates, LLC
• Inventors: King, Michael S., Spencer, Glenn
• Primary Examiner(s): Alsomiri, Isam
• Assistant Examiner(s): Baghdasaryan, Hovhannes
• Application Number:
  US13/424,214
• Publication Number:
  US 20120236688A1
• Time in Patent Office: 1,296 Days
• US Class Current: 1/1
• CPC Class Codes: G01V 1/242 Seismographs
• CPC Class Codes: G01V 1/30 Analysis G01V1/50 takes precedence
• CPC Class Codes: G01V 2210/123 Passive source, e.g. microseismics

Abstract

Embodiments of the invention provide a barrier detection system that includes a plurality of sensors that are coupled in series to a seismograph. The seismograph receives a signal from the sensors. The system includes a computer system including computer storage and a processor. The computer system is in communication with the seismograph so that the computer system receives signals from seismograph and stores them in the computer storage. The system can include an object detection system that can process the signals received by the computer system from the seismograph. The object detection system can select a first portion of the signal to analyze based a predetermined time interval, create a baseline value for the first portion, and select a plurality of peaks from the first portion. The object detection can also analyze an amplitude, frequency, and periodicity of the first portion to assess the origin of the signal.

Claims

1. A barrier detection system comprising:

a plurality of sensors capable of being coupled in series to at least one seismograph, the seismograph capable of receiving a signal from the plurality of sensors;

a computer system comprising computer storage and a processor, the computer system capable of being in communication with the seismograph so that the computer system receives the signals from the seismograph, the computer system capable of storing at least a portion of the signals in the computer storage; and

an object detection system being stored in the computer storage and being executable by the processor, the object detection system being configured to

select a first portion of the signal to analyze based a predetermined time interval,

create a baseline value for the first portion,

select a plurality of peaks from the first portion,

select a first peak from the plurality of peaks,

compare an amplitude of the first peak to an amplitude threshold value stored in the computer storage so that if the first peak exceeds the amplitude threshold, the remaining peaks of the first portion are compared to the amplitude threshold, and

compare a frequency value and a periodicity value of the plurality of peaks from the first portion to signatures stored in the computer storage to determine an origin of the signal.

2. The barrier detection system of claim 1, wherein the object detection system is configured to determine a rate of change of an amplitude of a portion of the signal.

3. The barrier detection system of claim 1, wherein the seismograph is configured and arranged to convert the signals from an analog format to a digital format.

4. The barrier detection system of claim 1, and further comprising an antenna capable of being coupled to the computer system.

5. The barrier detection system of claim 1, wherein the plurality of sensors comprises a plurality of geophones.

6. The barrier detection system of claim 1, wherein the seismograph comprises six channels.

7. The barrier detection system of claim 6, wherein the plurality of sensors comprises six strings of sensors, and wherein the seismograph is configured and arranged so that each of the six strings of sensors is capable of being in communication with one of the six channels.

8. The barrier detection system of claim 1, wherein the object detection system is further configured to transmit a signal to a monitoring system if the frequency value and the periodicity value of the plurality of peaks from the first portion are substantially similar to the signature corresponding to at least one of a human and a vehicle.

9. The barrier detection system of claim 1, wherein at least a portion of the plurality of sensors are capable of being buried underground.

10. A barrier detection system comprising:

a plurality of geophones capable of being coupled in series to at least one seismograph to form an element, the seismograph being configured and arranged to receive signals from the plurality of geophones, wherein a plurality of elements are capable of being coupled together to form a segment and a plurality of segments are capable of being coupled together to form a block;

at least one computer system capable of being coupled to each of the plurality of segments, each computer system comprising computer storage and a processor, each computer system capable of being in communication with the seismograph so that each computer system receives the signals from the seismograph, each computer system being capable of storing at least a portion of the signals in the computer storage; and

an object detection system being stored in the computer storage and being executable by the processor, the object detection system being configured to

select a first portion of the signal to analyze based a predetermined time interval,

select at least ten peaks from the first portion,

select a first peak from the ten peaks,

compare an amplitude of the first peak to an amplitude threshold value stored in the computer storage so that if the first peak exceeds the amplitude threshold, a timer is initiated and the remaining peaks of the ten peaks are compared to the amplitude threshold,

compare a frequency value and a periodicity value of the ten peaks from the first portion to signatures stored in the computer storage to determine an origin of the signal, and

transmit a signal to a monitoring system if the origin of the signal is determined to be at least one of a vehicle and a human.

11. The barrier detection system of claim 10, wherein the plurality of geophones are capable of being coupled together to form a plurality of geophone strings.

12. The barrier detection system of claim 11, wherein each of the plurality of elements comprises at least six geophone strings.

13. The barrier detection system of claim 12, wherein the seismograph comprises six channels and the seismograph is configured and arranged so that each of the six geophone strings is capable of being in communication with one of the six channels.

14. The barrier detection system of claim 10, wherein the seismograph is configured and arranged to digitize the signal received from the geophones.

15. The barrier detection system of claim 10 and further comprising an antenna capable of being coupled to the computer system.

16. The barrier detection system of claim 10, wherein the computer system is configured and arranged to digitize the signal received from the seismograph.

17. The barrier detection system of claim 10, wherein the object detection system is further configured to create a baseline value for the first portion of the signal.

18. A barrier detection system comprising:

a plurality of geophones capable of being coupled in series to at least one seismograph to form an element, the seismograph being configured to

receive analog signals from the plurality of geophones,

process the analog signals by filtering at least a portion of a background signal, and

digitize the analog signals;

a computer system comprising computer storage and a processor, the computer system capable of being in communication with the seismograph so that the computer system receives the digitized signals from the seismograph, the computer system capable of storing at least a portion of the digitized signals in the computer storage; and

an object detection system being stored in the computer storage and being executable by the processor, the object detection system being configured to

select a first portion of the signal to analyze based a predetermined time interval,

create a baseline value for the first portion,

select a plurality of peaks from the first portion,

select a first peak from the plurality of peaks,

determine a rate of change of an amplitude of a second portion of the signal and compare the determined rate of change of the amplitude of the second portion to a rate of change threshold value stored in the computer storage,

compare a frequency value and a periodicity value of the plurality of peaks from the first portion to signatures stored in the computer storage to determine an origin of the signal, and

transmit a signal to a monitoring system if the origin of the signal is determined to be one of a vehicle and a human.

19. The barrier detection system of claim 18, wherein the digitized signals from the seismograph to the computer system comprise a tag.

20. The barrier detection system of claim 19, wherein the tag is configured to enable the computer system to determine a location from which the digitized signal originated.