Ultra-wideband smart sensor interface network and method

• US 6,670,909 B2
• Filed: 01/16/2001
• Issued: 12/30/2003
• Est. Priority Date: 01/16/2001
• Status: Active Grant

• Current Assignee: Humatics Corporation
• Original Assignee: Time Domain Corporation (Humatics Corporation)
• Inventors: Kim, Jonnathan H.
• Primary Examiner(s): Gregory, Bernarr E.
• Application Number:
  US09/760,922
• Publication Number:
  US 20020130809A1
• Time in Patent Office: 1,078 Days
• Field of Search: 342/21, 342/22, 342/27, 342/28, 342/42-45, 342/50-61, 342/118, 342/125, 342/175, 342/192-197, 375/256, 340/870.02, 340/870.03
• US Class Current: 342/50
• 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 13/878 Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector G01S13/874 takes precedence
• CPC Class Codes: H01Q 25/00 Antennas or antenna systems providing at least two radiating patterns arrangements for changing or varying the orientation or the shape of the directional pattern H01Q3/00
• CPC Class Codes: H04B 2001/6908 using time hopping

Abstract

A network, sensor and method are provided that utilize the capabilities of impulse radio technology to help monitor and/or control the environment within a building. In particular, the network includes a sensor attached to a first impulse radio unit that is capable of transmitting an impulse radio signal containing sensor related information to a second impulse radio unit. The second impulse radio unit is attached to a control station that uses the sensor related information (e.g., environmental related information, safety related information or surveillance related information) to monitor and/or control the environment within a building. In one aspect of the present invention, the control system can better control and monitor the environment within the building because the sensor may be moved around within the building and reference impulse radio units may interact with the first impulse radio unit to enable the determination of the current position of the sensor.

Claims

1. A sensor comprising:

a first ultra wideband carrier wave-less impulse radio unit for transmitting an impulse radio signal containing sensor related information to a second ultra wideband carrier wave-less impulse radio unit, wherein the received sensor related information is used by a control station to monitor at least one condition within a building.

2. The sensor of claim 1, wherein said sensor related information further includes environmental related information that indicates a temperature or humidity within the building.

3. The sensor of claim 1, wherein said sensor related information further includes safety related information that indicates a presence of carbon monoxide or smoke within the building.

4. The sensor of claim 1, wherein said sensor related information further includes surveillance related information that indicates a presence of a visitor or an intruder within the building.

5. The sensor of claim 1, wherein when a person moves the sensor around within the building then impulse radio technology is used to determine a position of the sensor within the building.

6. A method for monitoring at least one condition within a building, said method comprising the steps of:

attaching a first ultra wideband carrier wave-less impulse radio unit to a sensor; and

transmitting, from the first ultra wideband carrier wave-less impulse radio unit, an impulse radio signal containing sensor related information to a second ultra wideband carrier wave-less impulse radio unit, wherein the received sensor related information is used by a control station to monitor the at least one condition within the building.

7. The method of claim 6, wherein said sensor related information further includes environmental related information that indicates the temperature or humidity within the building.

8. The method of claim 6, wherein said sensor related information further includes safety related information that indicates the presence of carbon monoxide or smoke within the building.

9. The method claim 6, wherein said sensor related information further includes surveillance related information that indicates the presence of a visitor or an intruder within the building.

10. The method of claim 6, further comprising the step of determining a position of the sensor that was moved within the building, wherein the position of the sensor is determined from the interaction between the first ultra wideband carrier wave-less impulse radio unit and at least two reference ultra wideband carrier wave-less impulse radio units.

11. A sensor comprising:

sensing means for sensing a least one condition within a building and generating sensor related information related to the at least one condition within the building; and

a first ultra wideband carrier wave-less impulse radio unit for transmitting an impulse radio signal having a plurality of pulses resembling a series Gaussian waveforms that contain the sensor related information to a second ultra wideband carrier wave-less impulse radio unit, wherein the sensor related information received by the second ultra wideband carrier wave-less impulse radio unit is used by a control station to monitor at least one condition within a building.

12. The sensor of claim 11, wherein said at least one condition includes a temperature or a humidity within the building.

13. The sensor of claim 11, wherein said at least one condition includes the presence of carbon monoxide or smoke within the building.

14. The sensor of claim 11, wherein when a person moves the sensor around within the building then at least two reference ultra wideband carrier wave-less impulse radio units are used to determine a position of the sensor within the building.

15. The sensor of claim 11, wherein said first ultra wideband carrier wave-less impulse radio unit also functions as a radar to determine a presence of a visitor or an intruder within the building.

16. A method for monitoring at least one condition within a building, said method comprising the steps of:

attaching a first ultra wideband carrier wave-less impulse radio unit to a sensor; and

transmitting, from the first ultra wideband carrier wave-less impulse radio unit, an impulse radio signal having a plurality of pulses resembling a series of Gaussian waveforms that contain sensor related information to a second ultra wideband carrier wave-less impulse radio unit, wherein the received sensor related information is used by a control station to monitor the at least one condition within the building.

17. The method of claim 16, wherein said at least one condition includes a temperature or a humidity within the building.

18. The method of claim 16, wherein said at least one condition includes the presence of carbon monoxide or smoke within the building.

19. The method of claim 16, wherein when a person moves the sensor around within the building then a positioning capability of ultra wideband impulse radio technology is used to determine a position of the sensor within the building.

20. The method of claim 16, wherein said first ultra wideband carrier wave-less impulse radio unit uses a radar capability of ultra wideband impulse radio technology to determine a presence of a visitor or an intruder within the building.