Chemical, biological, radiological, and nuclear weapon detection system with environmental acuity

• US 20070244653A1
• Filed: 06/30/2004
• Published: 10/18/2007
• Est. Priority Date: 06/30/2004
• Status: Active Grant

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Maurer, Scott, Fleming, Robert, Kofler, Kevin, Derksen, Mark
• Granted Patent: US 7,362,223 B2
• Time in Patent Office: Days
• US Class Current: 702/30
• CPC Class Codes: G08B 21/12 responsive to undesired emission of substances, e.g. pollution alarms

Abstract

A chemical, biological, radiological, and nuclear weapon detection system is disclosed that heightens its acuity and alertness when it senses that a chemical, biological, radiological, or nuclear weapon attack is more likely. For example, it is well understood that a chemical gas attack is likely to be less effective when it is raining than when it is clear because the rain will suppress and dilute the chemical agent. Therefore, the likelihood of a chemical gas attack is higher when it is clear. In light of this and similar knowledge, the illustrative embodiment checks for evidence of an attack more frequently and with great acuity than when the ambient environmental (e.g., meteorological, etc.) characteristics (e.g., whether is it precipitating or not, whether it is sunny or not, etc) suggest that an attack is more likely. This enables the embodiment to conserve consumables that are used in detecting attacks for when the attacks are more likely.

Claims

1. A system comprising:

a first environmental sensor for monitoring a first environmental factor; and

a first hazardous material sensor for checking for the presence of a first hazardous material, wherein said first hazardous material sensor checks for the presence of said first hazardous material in accordance with a first schedule that is based on said first environmental factor.

2. The system of claim 1 wherein said first environmental factor is precipitation.

3. The system of claim 2 wherein said first schedule dictates checking for the presence of said first hazardous material at a rate that is slower when it is precipitating than when it is not precipitating.

4. The system of claim 1 wherein said first environmental factor is humidity.

5. The system of claim 4 wherein said first schedule dictates checking for the presence of said first hazardous material at a rate that is slower when it is lower humidity than when it is higher humidity.

6. The system of claim 1 wherein said first environmental factor is sunlight.

7. The system of claim 6 wherein said first schedule dictates checking for the presence of said first hazardous material at a rate that is faster when it is night than when it is day.

8. The system of claim 1 wherein said first environmental factor is wind speed.

9. The system of claim 8 wherein said first schedule dictates checking for the presence of said first hazardous material at a rate that is faster than when it is windy than when it is not windy.

10. The system of claim 1 further comprising a second environmental sensor for monitoring a second environmental factor;

wherein said first schedule is based on said first environmental factor and on said second environmental factor.

11. The system of claim 1 further comprising a second hazardous material sensor for checking for the presence of a second hazardous material, wherein said second hazardous material sensor checks for the presence of said first hazardous material in accordance with a second schedule that is based on said first environmental factor.

12. A method comprising:

monitoring a first environmental factor; and

checking for the presence of a first hazardous material in accordance with a first schedule that is based on said first environmental factor.

13. The method of claim 12 wherein said first environmental factor is precipitation.

14. The method of claim 13 wherein said first schedule dictates checking for the presence of said first hazardous material at a rate that is slower when it is precipitating than when it is not precipitating.

15. The method of claim 12 wherein said first environmental factor is humidity.

16. The method of claim 15 wherein said first schedule dictates checking for the presence of said first hazardous material at a rate that is slower when it is lower humidity than when it is higher humidity.

17. The method of claim 12 wherein said first environmental factor is sunlight.

18. The method of claim 17 wherein said first schedule dictates checking for the presence of said first hazardous material at a rate that is faster when it is night than when it is day.

19. The method of claim 12 wherein said first environmental factor is wind speed.

20. The method of claim 19 wherein said first schedule dictates checking for the presence of said first hazardous material at a rate that is faster than when it is windy than when it is not windy.

21. The method of claim 12 further comprising monitoring a second environmental factor;

wherein said first schedule is based on said first environmental factor and on said second environmental factor.

22. The method of claim 12 further comprising checking for the presence of a second hazardous material, wherein said second hazardous material sensor checks for the presence of said first hazardous material in accordance with a second schedule that is based on said first environmental factor.