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Mobile radiation surveillance networkMobile radiation surveillance network description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070222675, Mobile radiation surveillance network. Brief Patent Description - Full Patent Description - Patent Application Claims
RELATED APPLICATIONS [0001] This application is a continuation of application Ser. No. 10/867,643, filed on Jun. 16, 2004. This application also claims priority from U.S. provisional patent application No. 60/520,243 filed on Nov. 17, 2003 which is incorporated herein by reference. FIELD OF THE INVENTION [0002] The present invention relates generally to the field of surveillance systems, with common but by no means exclusive application to systems for detecting nuclear, radiation, chemical or biological conditions in the environment. BACKGROUND OF THE INVENTION [0003] Since the terrorist events of Sep. 11, 2001, the likelihood of future terrorist attacks is acknowledged to be higher than in the past. As a result, the public has greater expectations for security, prevention, interdiction and incident site management. Radiological and other agents have a particularly high potential for psycho-social impacts on political and economic systems. The malicious dispersal or the clandestine placement of radiological materials or other agents could be used to attack private, public and economic targets. [0004] Radiological, nuclear, biological or chemical agents could be acquired by terrorists through clandestine theft or low level military operations and moved, possibly undetected, to urban population areas or to targets of high symbolic value. [0005] The applicants have accordingly recognized a need for improved systems and methods of detecting and tracking nuclear, radiological, biological or chemical threats. SUMMARY OF THE INVENTION [0006] In one aspect, the invention is directed towards a detection system having at least one detection unit and a control centre. [0007] The detection unit includes at least one sensor configured to generate sensor data correlated to sensed conditions; a locator for actively determining location data corresponding to the location of the detection unit; and a communicator configured to communicate the sensor data and location data. [0008] The control centre includes a receiver for receiving the sensor data and the location data, and a control processor configured to determine a threat level correlated to the sensor data. [0009] In another aspect, the invention is directed towards a detection unit having at least one sensor, a locator, and a communicator. The sensor is configured to generate sensor data correlated to sensed conditions. The locator is configured to actively determine location data corresponding to the location of the detection unit. The communicator is configured to communicate the sensor data and location data. [0010] In yet another aspect, the invention is directed towards a detection unit comprising at least one sensor, a locator, a control processor and a display unit. The sensor is configured to generate sensor data correlated to sensed conditions. The locator is configured to actively determine location data corresponding to the location of the detection unit. The control processor is operatively coupled to the sensor and to the locator. The display is operatively coupled to the control processor and configured to display graphical data correlated to both the sensor data and the corresponding location data. [0011] In yet a further aspect, the invention is directed towards a method of detecting threatening conditions, comprising the steps of: [0012] a. providing a control centre; [0013] b. providing at least one mobile detection unit, wherein the detection unit comprises at least one sensor configured to generate sensor data correlated to sensed conditions; [0014] c. actively determining location data corresponding to the location of the detection unit; [0015] d. communicating the sensor data and the location data to the control centre; [0016] e. determining a threat level correlated to the sensor data. [0017] Preferably, the method also includes the step of generating a graphical display correlated to both the sensor data and the location data. BRIEF DESCRIPTION OF THE DRAWINGS [0018] The present invention will now be described, by way of example only, with reference to the following drawings, in which like reference numerals refer to like parts and in which: [0019] FIG. 1 is a schematic diagram of a detection system made in accordance with the resent invention. [0020] FIG. 2A is a schematic diagram of a mobile detection unit used in connection with the detection system of FIG. 1. [0021] FIG. 2B is a schematic diagram of a vital point detection unit used in connection with the detection system of FIG. 1. [0022] FIG. 3 is a schematic diagram of sample historical sensor reading data stored in the main data storage unit of FIG. 1. [0023] FIG. 4 is a schematic diagram of a stand-alone detection unit made in accordance with the present invention. [0024] FIG. 5 is a representative screen display of a display unit of FIG. 1. Continue reading about Mobile radiation surveillance network... 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