SURVEILLANCE AND TRACKING SYSTEM AND METHOD

• US 20130241765A1
• Filed: 12/26/2012
• Published: 09/19/2013
• Est. Priority Date: 12/06/2010
• Status: Active Grant

• Current Assignee: University of Memphis Research Foundation
• Original Assignee: University of Memphis
• Inventors: Kozma, Robert, Iftekharuddin, Khan M., Deming, Ross, Furxhi, Orges, Wang, Lan, Consul, Sergi
• Granted Patent: US 9,557,413 B2
• Time in Patent Office: Days
• US Class Current: 342/107
• CPC Class Codes: G01S 13/522 using transmissions of interrupted pulse modulated waves
• CPC Class Codes: G01S 13/56 for presence detection presence detection using near field arrangements G01V3/00, e.g. G01V3/08, G01V3/12; burglar, theft or intruder alarms with electrical actuation G08B13/22 - G08B13/26
• CPC Class Codes: G01S 13/66 Radar-tracking systems; Analogous systems
• CPC Class Codes: G01S 13/86 Combinations of radar systems with non-radar systems, e.g. sonar, direction finder

Abstract

A system for detecting object movement including a sensory network having at least one sensory device using modulated radar for detecting an object in proximity to the sensory network. The sensory network including a wireless transmission system and a base station having a computer processing system located remote from the sensory network and including a wireless transmission system to communicate with the sensory network. The base station having a computer readable program code for causing the computer processing system to analyze data received from the sensory network to determine motion characteristics of the object in proximity to the sensory network.

Claims

1. A system for detecting object movement comprising:

a sensory network having at least one sensory device using modulated radar for detecting an object in proximity to the sensory network, the sensory network including a wireless transmission system;

a base station having a computer processing system located remote from the sensory network and including a wireless transmission system to communicate with the sensory network, the base station having a computer readable program code for causing the computer processing system to analyze data received from the sensory network to determine motion characteristics of the object in proximity to the sensory network.

2. A system for detecting object movement as recited in claim 1, wherein the computer readable program code of the base station causes the computer processing system to analyze data received from the sensory network to determine range of distance between the object and the sensory network.

3. A system for detecting object movement as recited in claim 2, wherein the computer readable program code of the base station causes the computer processing system to analyze data received from the sensory network to determine motion characteristics of the object relative to the sensory network.

4. A system for detecting object movement as recited in claim 1, wherein the computer readable program code of the base station causes the computer processing system to analyze data received from the sensory network to determine range of distance between the object and the sensory network and motion characteristics of the object relative to the sensory network.

5. A system for detecting object movement as recited in claim 1, wherein the computer processing system of the base station is operable to provide control signals to the sensory network for controlling operation of the sensory network.

6. A system for detecting object movement as recited in claim 1, wherein the sensory network includes a plurality of nodes each including at least one sensory device.

7. A system for detecting object movement as recited in claim 6, wherein each of sensory devices are selected from the group consisting of:

radar devices;

acoustic measuring devices;

infrared measuring devices and vibration sensing devices.

8. A system for detecting object movement as recited in claim 1, wherein the at least one sensory device includes a Gunn diode oscillator transmitting a continuous radar wave.

9. A system for detecting object movement as recited in claim 8, wherein the at least one sensory device has a continuous frequency of approximately 24.125 GHz and provides a bandwidth operating frequency of approximately 0.3 Ghz.

10. A system for detecting object movement as recited in claim 8, wherein the at least one sensory device is controlled by an external voltage.

11. A system for detecting object movement as recited in claim 10, wherein the sensory network includes a source for applying an external voltage pulse ramp to the at least one sensory device using a wave form generator.

12. A system for detecting object movement as recited in claim 1, wherein the sensory network mixes received signals from the at least one sensory device with its transmitted signal, and applies a low-pass filter to the mixed signal to provide in-phase and quadrature output signal components.

13. A system for detecting object movement as recited in claim 1, wherein the computer processing system of the base station is operable to perform a first fast fourier transform on received signals from the sensory network to extract range of distance information regarding an object relative to its distance from the at least one sensory device.

14. A system for detecting object movement as recited in claim 1, wherein the computer processing system of the base station is operable to perform a second fast fourier transform on received signals from the sensory network to determine velocity information of an object relative to the sensory network.

15. A system for detecting object movement as recited in claim 1, wherein the sensory network further includes a sensor node platform.

16. A system for detecting object movement as recited in claim 15, wherein the sensory sensor node is a wireless sensor board.

17. A system for detecting object movement as recited in claim 16, wherein the wireless sensor board is a WiEye Sensor node.

18. A system for detecting object movement as recited in claim 16, wherein the wireless sensor board provides initial detection of an object in proximity to the sensory network.

19. A system for detecting object movement as recited in claim 16, wherein the wireless sensor board includes a long range passive infrared sensor for detecting a moving object for triggering operation of the at least one sensory device of the sensory network.

20. A system for detecting object movement as recited in claim 1, wherein the sensory network further includes a Multi Modality sensor board to determine characteristics of an object in proximity to the sensory network.

21. A system for detecting object movement as recited in claim 20, wherein the Multi Modality sensor board is a second wireless sensor board.

22. A system for detecting object movement as recited in claim 16, wherein the second wireless sensor board is a SBT80 Multi Modality sensor board.

23. A system for detecting object movement as recited in claim 20, wherein the Multi Modality sensor board includes a dual axis magnetometer operable to determine variations in a local magnetic field for ferrous metals present in an object in proximity to the sensory network.

24. A system for detecting object movement as recited in claim 20, wherein the Multi Modality sensor board includes an acoustic sensing element for detecting an audio waveform emitting from an object in proximity to the sensory network.

25. A system for detecting object movement as recited in claim 20, wherein the Multi Modality sensor board includes a dual axis accelerometer for detecting seismic activity emitting from an object in proximity to the sensory network.

26. A system for detecting object movement as recited in claim 20, wherein the Multi Modality sensor board includes a temperature sensor for detecting temperature characteristics of an object in proximity to the sensory network.

27. A system for detecting object movement as recited in claim 1 wherein the sensory network comprises a Doppler radar transceiver coupled to an inverting power amplifier which couples to a mote sensor.

28. A system for detecting object movement as recited in claim 1 wherein the sensory network comprises a Doppler radar transceiver coupled to an active filter arrangement which couples to a mote sensor.

29. A system for detecting object movement as recited in claim 28 wherein the active filter arrangement includes first, second and third active filter elements wherein the first active filter element couples to a first Analog-to-Digital Converter (ADC) provided on the sensor mote, the second active filter element couples to a second ADC provided on the sensor mote and the third active filter element couples to a Digital-to-Analog Converter provided on the sensor mote

30. A method for detecting object movement comprising the steps of:

providing a sensory network having at least one sensory device using modulated radar for detecting an object in proximity to the sensory network, the sensory network including a wireless transmission system, a first wireless sensor board and a second wireless sensor board;

providing a base station having a computer processing system located remote from the sensory network and including wireless transmission system to communicate with the sensory network;

analyzing data in the base station received from the sensory network to determine motion of the object in proximity to the sensory network; and

sending an a signal from the first wireless sensor board to the at least one sensory device and the second wireless sensor board when an object moves in proximity to the sensory network.

31. A system for detecting object movement as recited in claim 30, wherein the first wireless sensor board is a WiEye Sensor node.

32. A system for detecting object movement as recited in claim 30, wherein the second wireless sensor board is a SBT80 Multi Modality sensor board.

33. A method for detecting object movement as recited in claim 30 further including the step of transmitting time steps from the sensory network to the base station for synchronizing the sensory network with the base station using time signal beacons.

34. A method for detecting object movement as recited in claim 33 further including the step of determining the velocity of an object relative to the sensory network by correlating location information of the object as detected by the at least one sensory device with the time signal beacons.