Event-driven mobile hazmat monitoring

• US 7,554,442 B2
• Filed: 06/19/2006
• Issued: 06/30/2009
• Est. Priority Date: 06/17/2005
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: TeraHop Networks Incorporated
• Inventors: Twitchell, Jr., Robert W.
• Primary Examiner(s): Wu, Daniel
• Assistant Examiner(s): Lu, Shirley
• Application Number:
  US11/425,047
• Publication Number:
  US 20070069885A1
• Time in Patent Office: 1,107 Days
• Field of Search: 340/870.16, 340/540, 340/539.26
• US Class Current: 340/539.26
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 2209/883 where the sensing device enters an active or inactive mode
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

A wireless sensor network for monitoring of a container includes a sensor disposed for monitoring of a container, at least one remote sensor interface, and a gateway. The sensor is configured to acquire data related to the container and communicate sensor data as a function of the acquired data. The remote sensor interface is configured to receive the sensor data communicated from the sensor and wirelessly transmit data relating to the received sensor data. The gateway is configured to receive data related to the sensor data, and transmitted from the at least one remote sensor interface, and is configured to communicate data relating to the sensor data to a network external to the wireless sensor network. The gateway is in at least intermittent electronic communications with the external network.

Claims

1. A system of ad hoc wireless sensor networks that monitors for first, second, and third different hazardous materials, the system comprising:

(a) a first plurality of remote sensor interfaces, each remote sensor interface of the first plurality of remote sensor interfaces forming a node in a first ad hoc wireless sensor network and,

(i) being attached to a mobile container, and

(ii) being associated with at least one sensor that acquires data for detecting the first hazardous material and that communicates sensor data pertaining to the detection of the first hazardous material,

(iii) wherein each remote sensor interface of the first plurality of remote sensor interfaces receives sensor data pertaining to the detection of the first hazardous material that is communicated from said respective at least one associated sensor, and

(iv) wherein each remote sensor interface of the first plurality of remote sensor interfaces wirelessly transmits, over the first ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the first hazardous material;

(b) a second plurality of remote sensor interfaces,

(i) each remote sensor interface of the second plurality of remote sensor interfaces forming a node in a second ad hoc wireless sensor network,

(A) wherein communications within the first ad hoc wireless sensor network do not result in communications within the second ad hoc wireless sensor network, and

(B) wherein communications within the second ad hoc wireless sensor network do not result in communications within the first ad hoc wireless sensor network, and

(ii) each remote sensor interface of the second plurality of remote sensor interfaces,

(A) being attached to a respective mobile container, and

(B) being associated with at least one sensor that acquires data for detecting the second hazardous material and that communicates sensor data pertaining to the detection of the second hazardous material,

(C) wherein each remote sensor interface of the second plurality of remote sensor interfaces receives sensor data pertaining to the detection of the second hazardous material that is communicated from said respective at least one associated sensor, and

(D) wherein each remote sensor interface of the second plurality of remote sensor interfaces wirelessly transmits, over the second ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the second hazardous material;

(c) a third plurality of remote sensor interfaces,

(i) each remote sensor interface of the third plurality of remote sensor interfaces forming a node in a third ad hoc wireless sensor network,

(A) wherein communications within the first ad hoc wireless sensor network do not result in communications within the third ad hoc wireless sensor network,

(B) wherein communications within the third ad hoc wireless sensor network do not result in communications within the first ad hoc wireless sensor network,

(C) wherein communications within the second ad hoc wireless sensor network do not result in communications within the third ad hoc wireless sensor network, and

(D) wherein communications within the third ad hoc wireless sensor network do not result in communications within the second ad hoc wireless sensor network, and

(ii) each remote sensor interface of the third plurality of remote sensor interfaces,

(A) being attached to a respective mobile container, and

(B) being associated with at least one sensor that acquires data for detecting the third hazardous material and that communicates sensor data pertaining to the detection of the third hazardous material,

(C) wherein each remote sensor interface of the third plurality of remote sensor interfaces receives sensor data pertaining to the detection of the third hazardous material that is communicated from said respective at least one associated sensor, and

(D) wherein each remote sensor interface of the third plurality of remote sensor interfaces wirelessly transmits, over the third ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the third hazardous material; and

(d) a gateway that,

(i) communicates with the first ad hoc wireless sensor network and receives data wirelessly transmitted over the first ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the first hazardous material, and further communicates data relating to the detection of the first hazardous material to a network external to each of the first ad hoc wireless sensor network, the second ad hoc wireless sensor network, and the third ad hoc wireless sensor network, said gateway being at least in intermittent electronic communications with the external network,

(ii) communicates with the second ad hoc wireless sensor network and receives data wirelessly transmitted over the second ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the second hazardous material, and further communicates data relating to the detection of the second hazardous material to the external network, and

(iii) communicates with the third ad hoc wireless sensor network and receives data wirelessly transmitted over the third ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the third hazardous material, and further communicates data relating to the detection of the third hazardous material to the external network.

2. The system of claim 1, wherein a said at least one sensor that acquires data for detecting the first hazardous material comprises a biological sensor, a said at least one sensor that acquires data for detecting the second hazardous material is a radiological sensor, and a said at least one sensor that acquires data for detecting the third hazardous material is a chemical sensor.

3. The system of claim 1, wherein at least one of said remote sensor interfaces of said first ad hoc wireless sensor network is associated with an activity monitoring device comprising at least one of a microphone, a motion detector, a light detector, and a broad-band RF signal scanner.

4. The system of claim 1, wherein at least one of the remote sensor interfaces of the first ad hoc wireless sensor network is associated with a sensor that detects data regarding the security, integrity, configuration, condition, disposition, orientation, location, contents, or surroundings of a shipping container.

5. The system of claim 1, wherein at least one of the remote sensor interfaces of the first ad hoc wireless sensor network is associated with a railroad car.

6. The system of claim 1, wherein at least one of the remote sensor interfaces of the first ad hoc wireless sensor network is associated with a tanker truck.

7. The system of claim 1, wherein at least one of the remote sensor interfaces of the first ad hoc wireless sensor network is associated with a maritime shipping container.

8. The system of claim 1, wherein the gateway further communicates data to the external network upon receipt of an appropriate wake-up signal communicated to said gateway and does not communicate the data to the external network at periodic intervals determined based on a timer of the gateway.

9. The system of claim 1, wherein the gateway communicates with the external network by way of satellite communications.

10. The system of claim 1, wherein the gateway communicates with the external network by way of cellular communications.

11. The system of claim 1, wherein each remote sensor interface of the first ad hoc wireless sensor network hops communications from the other remote sensor interfaces of the first ad hoc wireless sensor network, whereby a remote sensor interface of the first ad hoc wireless sensor network indirectly communicates with the gateway when out of range of direct communications with the gateway;

wherein each remote sensor interface of the second ad hoc wireless sensor network hops communications from the other remote sensor interfaces of the second ad hoc wireless sensor network, whereby a remote sensor interface of the second ad hoc wireless sensor network indirectly communicates with the gateway when out of range of direct communications with the gateway; and

wherein each remote sensor interface of the third ad hoc wireless sensor network hops communications from the other remote sensor interfaces of the third ad hoc wireless sensor network, whereby a remote sensor interface of the third ad hoc wireless sensor network indirectly communicates with the gateway when out of range of direct communications with the gateway.

12. The system of claim 1, wherein the gateway and the remote sensor interfaces of the first, second, and third ad hoc wireless sensor networks are located on cars of a train.

13. The system of claim 1, wherein the gateway and the remote sensor interfaces of the first, second, and third ad hoc wireless sensor networks are located on maritime shipping containers.

14. The system of claim 1, wherein a remote sensor interface of the first ad hoc wireless sensor network and a remote sensor interface of the second ad hoc wireless sensor network are attached to the same mobile container.

15. The system of claim 1, wherein a remote sensor interface of the first ad hoc wireless sensor network, a remote sensor interface of the second ad hoc wireless sensor network, and a remote sensor interface of the third ad hoc wireless sensor network are attached to the same mobile container.

16. The system of claim 1, wherein the gateway is attached to a mobile container.

17. The system of claim 1, wherein the gateway is stationary.

18. The system of claim 17, wherein the gateway is mounted to a pole.

19. A HAZMAT monitoring system that detects first, second, and third different hazardous materials each representing a chemical, biological, radiological, nuclear, or explosive threat, the HAZMAT monitoring system comprising:

(a) a first plurality of remote sensor interfaces, each remote sensor interface of the first plurality of remote sensor interfaces forming a node in a first ad hoc wireless sensor network and,

(i) being associated with a mobile container, and

(ii) being associated with at least one sensor that acquires data for detecting the first hazardous material and communicates sensor data pertaining to the detection of the first hazardous material,

(iii) wherein each remote sensor interface of the first plurality of remote sensor interfaces receives sensor data pertaining to the detection of the first hazardous material that is communicated from said respective at least one associated sensor, and

(iv) wherein each remote sensor interface of the first plurality of remote sensor interfaces wirelessly transmits, over the first ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the first hazardous material;

(b) a second plurality of remote sensor interfaces,

(i) each remote sensor interface of the second plurality of remote sensor interfaces forming a node in a second ad hoc wireless sensor network,

(A) wherein communications within the first ad hoc wireless sensor network do not result in communications within the second ad hoc wireless sensor network, and

(B) wherein communications within the second ad hoc wireless sensor network do not result in communications within the first ad hoc wireless sensor network, and

(ii) each remote sensor interface of the second plurality of remote sensor interfaces,

(A) being associated with a respective mobile container,

(B) being associated with at least one sensor that acquires data for detecting the second hazardous material and that communicates sensor data pertaining to the detection of the second hazardous material,

(C) wherein each remote sensor interface of the second plurality of remote sensor interfaces receives sensor data pertaining to the detection of the second hazardous material that is communicated from said respective at least one associated sensor, and

(D) wherein each remote sensor interface of the second plurality of remote sensor interfaces wirelessly transmits, over the second ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the second hazardous material;

(c) a third plurality of remote sensor interfaces,

(i) each remote sensor interface of the third plurality of remote sensor interfaces forming a node in a third ad hoc wireless sensor network,

(A) wherein communications within the first ad hoc wireless sensor network do not result in communications within the third ad hoc wireless sensor network,

(B) wherein communications within the third ad hoc wireless sensor network do not result in communications within the first ad hoc wireless sensor network,

(C) wherein communications within the second ad hoc wireless sensor network do not result in communications within the third ad hoc wireless sensor network, and

(D) wherein communications within the third ad hoc wireless sensor network do not result in communications within the second ad hoc wireless sensor network, and

(ii) each remote sensor interface of the third plurality of remote sensor interfaces,

(A) being associated with a respective mobile container, and

(B) being associated with at least one sensor that acquires data for detecting the third hazardous material and that communicates sensor data pertaining to the detection of the third hazardous material,

(C) wherein each remote sensor interface of the third plurality of remote sensor interfaces receives sensor data pertaining to the detection of the third hazardous material that is communicated from said respective at least one associated sensor, and

(D) wherein each remote sensor interface of the third plurality of remote sensor interfaces wirelessly transmits, over the third ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the third hazardous material; and

(d) a gateway that,

(i) communicates with the first ad hoc wireless sensor network and receives data wirelessly transmitted from the first ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the first hazardous material, and further communicates data relating to the detection of the first hazardous material to a network external to each of the first ad hoc wireless sensor network, the second ad hoc wireless sensor network, and the third ad hoc wireless sensor network, said gateway being at least in intermittent electronic communications with the external network,

(ii) communicates with the second ad hoc wireless sensor network and receives data wirelessly transmitted from the second ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the second hazardous material, and further communicates data relating to the detection of the second hazardous material to the external network, and

(iii) communicates with the third ad hoc wireless sensor network and receives data wirelessly transmitted from the third ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the third hazardous material, and further communicates data relating to the detection of the third hazardous material to the external network.

20. The system of claim 19, wherein the gateway communicates with the external network by way of satellite communications.

21. The system of claim 19, wherein the gateway communicates with the external network by way of cellular communications.

22. The system of claim 19, wherein each remote sensor interface of the first ad hoc wireless sensor network hops communications from the other remote sensor interfaces of the first ad hoc wireless sensor network, whereby a remote sensor interface of the first ad hoc wireless sensor network indirectly communicates with the gateway when out of range of direct communications with the gateway;

wherein each remote sensor interface of the second ad hoc wireless sensor network hops communications from the other remote sensor interfaces of the second ad hoc wireless sensor network, whereby a remote sensor interface of the second ad hoc wireless sensor network indirectly communicates with the gateway when out of range of direct communications with the gateway; and

wherein each remote sensor interface of the third ad hoc wireless sensor network hops communications from the other remote sensor interfaces of the third ad hoc wireless sensor network, whereby a remote sensor interface of the third ad hoc wireless sensor network indirectly communicates with the gateway when out of range of direct communications with the gateway.

23. The system of claim 19, wherein the gateway and the remote sensor interfaces of the first, second, and third ad hoc wireless sensor networks are located on cars of a train.

24. The system of claim 19, wherein the gateway and the remote sensor interfaces of the first, second, and third ad hoc wireless sensor networks are located on maritime shipping containers.

25. The system of claim 19, wherein a remote sensor interface of the first ad hoc wireless sensor network and a remote sensor interface of the second ad hoc wireless sensor network are attached to the same mobile container.

26. The system of claim 19, wherein a remote sensor interface of the first ad hoc wireless sensor network, a remote sensor interface of the second ad hoc wireless sensor network, and a remote sensor interface of the third ad hoc wireless sensor network are attached to the same mobile container.

27. The system of claim 19, wherein the gateway is attached to a mobile container.

28. The system of claim 19, wherein the gateway is stationary.

29. The system of claim 28, wherein the gateway is mounted to a pole.

30. A method for monitoring for first, second, and third different hazardous materials using a system of ad hoc wireless sensor networks, the system comprising,

a first plurality of remote sensor interfaces, each remote sensor interface of the first plurality of remote sensor interfaces forming a node in a first ad hoc wireless sensor network and,

being attached to a mobile container, and

being associated with at least one sensor that acquires data for detecting the first hazardous material and that communicates sensor data pertaining to the detection of the first hazardous material,

wherein each remote sensor interface of the first plurality of remote sensor interfaces receives sensor data pertaining to the detection of the first hazardous material that is communicated from said respective at least one associated sensor, and

wherein each remote sensor interface of the first plurality of remote sensor interfaces wirelessly transmits, over the first ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the first hazardous material,

a second plurality of remote sensor interfaces,

each remote sensor interface of the second plurality of remote sensor interfaces forming a node in a second ad hoc wireless sensor network,

wherein communications within the first ad hoc wireless sensor network do not result in communications within the second ad hoc wireless sensor network, and

wherein communications within the second ad hoc wireless sensor network do not result in communications within the first ad hoc wireless sensor network, and

each remote sensor interface of the second plurality of remote sensor interfaces,

being attached to a respective mobile container, and

being associated with at least one sensor that acquires data for detecting the second hazardous material and that communicates sensor data pertaining to the detection of the second hazardous material,

wherein each remote sensor interface of the second plurality of remote sensor interfaces receives sensor data pertaining to the detection of the second hazardous material that is communicated from said respective at least one associated sensor, and

wherein each remote sensor interface of the second plurality of remote sensor interfaces wirelessly transmits, over the second ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the second hazardous material,

a third plurality of remote sensor interfaces,

each remote sensor interface of the third plurality of remote sensor interfaces forming a node in a third ad hoc wireless sensor network,

wherein communications within the first ad hoc wireless sensor network do not result in communications within the third ad hoc wireless sensor network,

wherein communications within the third ad hoc wireless sensor network do not result in communications within the first ad hoc wireless sensor network,

wherein communications within the second ad hoc wireless sensor network do not result in communications within the third ad hoc wireless sensor network, and

wherein communications within the third ad hoc wireless sensor network do not result in communications within the second ad hoc wireless sensor network, and

each remote sensor interface of the third plurality of remote sensor interfaces,

being attached to a respective mobile container, and

being associated with at least one sensor that acquires data for detecting the third hazardous material and that communicates sensor data pertaining to the detection of the third hazardous material,

wherein each remote sensor interface of the third plurality of remote sensor interfaces receives sensor data pertaining to the detection of the third hazardous material that is communicated from said respective at least one associated sensor, and

wherein each remote sensor interface of the third plurality of remote sensor interfaces wirelessly transmits, over the third ad hoc wireless sensor network, data relating to said received sensor data pertaining to the detection of the third hazardous material, and

a gateway that,

communicates with the first ad hoc wireless sensor network and receives data wirelessly transmitted over the first ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the first hazardous material, and further communicates data relating to the detection of the first hazardous material to a network external to each of the first ad hoc wireless sensor network, the second ad hoc wireless sensor network, and the third ad hoc wireless sensor network, said gateway being at least in intermittent electronic communications with the external network,

communicates with the second ad hoc wireless sensor network and receives data wirelessly transmitted over the second ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the second hazardous material, and further communicates data relating to the detection of the second hazardous material to the external network, and

communicates with the third ad hoc wireless sensor network and receives data wirelessly transmitted over the third ad hoc wireless sensor network relating to received sensor data pertaining to the detection of the third hazardous material, and further communicates data relating to the detection of the third hazardous material to the external network,

the method comprising the steps of,

following detection of the first hazardous material, wirelessly transmitting to the gateway, from a remote sensor interface of the first ad hoc wireless sensor network, over the first ad hoc wireless sensor network, data relating to received sensor data pertaining to the detection of the first hazardous material, and further communicating by the gateway data relating to the detection of the first hazardous material to the external network,

following detection of the second hazardous material, wirelessly transmitting to the gateway, from a remote sensor interface of the second ad hoc wireless sensor network, over the second ad hoc wireless sensor network, data relating to received sensor data pertaining to the detection of the second hazardous material, and further communicating by the gateway data relating to the detection of the second hazardous material to the external network, and

following detection of the third hazardous material, wirelessly transmitting to the gateway, from a remote sensor interface of the third ad hoc wireless sensor network, over the third ad hoc wireless sensor network, data relating to received sensor data pertaining to the detection of the third hazardous material, and further communicating by the gateway data relating to the detection of the third hazardous material to the external network.