Explosive or drug detection reporting system
AssigneeChemspectra, Inc.
InventorsJeffrey Haas, Douglas Haas
Life of this patent
Estimating the term…
Abstract
A police tester to detect the presence of a target substance includes a housing adapted to be mounted in a police cruiser; a chemical reservoir insertable into the housing; a test swipe in a disc or an automated cartridge, the test swipe adapted to receive a chemical from the chemical reservoir, the test swipe including one or more chemically treated pads; a camera to capture an image from the test swipe; a processor coupled to the camera to process the image to detect the target substance; and a transmitter coupled to the processor to transmit a test result to a remote computer at a police headquarter.
Claims20
A police tester to detect the presence of a target substance, comprising:
- a housing;
- a chemical reservoir insertable into the housing;
- a test swipe adapted to receive a chemical from the chemical reservoir, the test swipe including one or more chemically treated pads which, upon contact with one or more chemicals in concert with one or more heating and time profiles, displays a sequence of a plurality of color reactions unique to multiple analytes, including explosives, drugs, or household chemicals;
- a camera to capture an image from the test swipe;
- a processor coupled to the camera to process the image to detect the target substance;
- one or more dispensers coupled to the chemical reservoirs and controlled by the processor to dispense the chemical on the test swipe;
- and
- a heater coupled to the processor to ramp test swipe temperature according to the one or more heating and time profiles.
A method for crime analysis, comprising:
- capturing a background image of a test swipe;
- applying one or more test chemicals to the test swipe with one or more processor controlled dispensers;
- adjusting the temperature of the test swipe to a predetermined temperature range using a digitally-controlled heater;
- upon contact with one or more chemicals in concert with heating and time profiles, displaying a sequence of a plurality of color reactions unique to multiple analytes, including explosives, drugs, or household chemicals;
- capturing an in-situ image of the test swipe after the application of chemical at the predetermined temperature range;
- subtracting the background image from the in-situ image;
- generating a difference value from the two images;
- and
- searching a known database to identify the substance.
Dependencies are inferred from the claim text.