Implementation and testing of a sensor-netting algorithm for early warning and high confidence C/B threat detection

Gruber, Thomas; Grim, Larry B.; Fauth, Ryan; Tercha, Brian; Powell, Christine; Steinhardt, Kristin

doi:10.1117/12.883189

Cited by 1 publication

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“…The development of sensor platforms for environmental monitoring or surveillance is an ongoing area of interest. With the increased availability of connectivity technologies (cellular/WiFi) and continuing advances in supporting hardware and software, generation of consensus decisions based on distributed sensors has become more feasible [ 1 , 2 , 3 , 4 ]. It remains true that platform development is faced with serious design constraints on power and size as well as sensor specificity and sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Reflectance-based detection for long term environmental monitoring

Johnson

Malanoski

Erickson

et al. 2017

Heliyon

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Here, the potential of colorimetric sensors utilizing porphyrin indicators for long term environmental monitoring is demonstrated. Prototype devices based on commercial color sensing chips (six per device) were combined with in-house developed algorithms for data analysis. The devices are intended to provide real-time sensing of threats. An initial outdoor data set was collected using prototype devices with occasional spiked exposure to targets. This data was supported by similar data collected in a controlled indoor environment. Weaknesses in the noted performance of the devices during these experiments were addressed through altering device parameters, algorithm parameters, and array element composition. Additional outdoor data sets totaling 1,616 h and indoor data sets totaling 728 h were collected in support of assessing these changes to the system configuration. The optimized system provided receiver operating characteristics (ROC) of specificity 0.97 and sensitivity 1.0.

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Section: Introductionmentioning

confidence: 99%