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Event-driven mobile HAZMAT monitoring

  • US 7,847,676 B2
  • Filed: 06/30/2009
  • Issued: 12/07/2010
  • Est. Priority Date: 06/17/2005
  • Status: Active Grant
First Claim
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1. A system of ad hoc wireless sensor networks for monitoring for a plurality of 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 being,(i) associated with a mobile container, and(ii) associated with at least one sensor for detecting a first hazardous material,(b) at least 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 being,(A) associated with a mobile container, and(B) associated with at least one sensor for detecting a second hazardous material; and

    (c) a gateway that,(i) communicates with the first ad hoc wireless sensor network, and(ii) communicates with the second ad hoc wireless sensor network;

    (d) wherein,(i) a said sensor for detecting the first hazardous material, upon detecting the first hazardous material, communicates sensor data pertaining to such detection to a said particular remote sensor interface of the first ad hoc wireless sensor network with which it is associated,(ii) said particular remote sensor interface of the first ad hoc wireless sensor network receives the sensor data and 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, and(iii) said gateway receives data wirelessly transmitted over the first ad hoc wireless sensor network relating to said received sensor data pertaining to the detection of the first hazardous material, and 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 and the second ad hoc wireless sensor network, said gateway being at least in intermittent electronic communications with the external network; and

    (e) wherein,(i) a said sensor for detecting the second hazardous material, upon detecting the second hazardous materia, communicates sensor data pertaining to such detection to a said particular remote sensor interface of the second ad hoc wireless sensor network with which it is associated,(ii) said particular remote sensor interface receives the sensor data and 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, and(iii) said gateway receives data wirelessly transmitted over the second ad hoc wireless sensor network relating to said received sensor data pertaining to the detection of the second hazardous material, and communicates data relating to the detection of the second hazardous material to the external network.

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