| US 7,468,672 B2 | ||
| Detection and identification method for in-transit determination of chemical contraband, decaying animal and vegetable matter, and concealed humans in cargo shipping containers and other secure spaces | ||
| Charles S. Harden, 509 W. Ring Factory Rd., Bel Air, Md. 21015 (US); and Joseph C. Harden, Hilton Head Island, S.C. (US) | ||
| Assigned to Charles S. Harden, Bel Air, Md. (US) | ||
| Filed on May 31, 2006, as Appl. No. 11/443,950. | ||
| Prior Publication US 2007/0277589 A1, Dec. 06, 2007 | ||
| Int. Cl. G08B 23/00 (2006.01) | ||
| U.S. Cl. 340—573.1 | 15 Claims |
| 1. A method for detection and identification of illegal drugs, explosives, toxic chemicals, decaying animal and vegetable
matter, and concealed human beings located in confined spaces of shipping containers, storage containers and other cargo containers
and secure spaces, the method comprising the steps of:
providing an analytical chemical detector which has low power requirements and is powered by a battery to operate the detector
and to sample the atmosphere within the confined spaces,
disposing the analytical chemical detector in said confined spaces for a period of time wherein there is an accumulation of
target chemicals associated with the illegal drugs, explosives, toxic chemicals, decaying animal and vegetable matter, and
human effluvia, the analytical chemical detector being sensitive to minute concentrations of the target chemicals,
providing a means for accumulating, adding and processing chemical analysis measurements periodically over said period of
time as the target chemicals accumulate to significant concentrations in said confined spaces,
providing digital signal processing algorithms to identify the target chemicals,
providing a means for reporting the presence of the target chemicals to a device located outside of the confined spaces.
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