Sunday, October 22, 2017

Laser Based Detection

This week’s post relates to the topics addressed in the introductory week of class in UNSY 605 Unmanned Systems, Sensors, Perception, and Processing. The focus of the readings, multimedia review, and discussions have been on numerous types of sensors. By design, unmanned systems are engineered to relieve humans from tasks that are dull, dirty, and dangerous. The sensors are often the focus of design considerations and sometimes dictate how a system is structured.

Less than a year ago Laser Detect Systems (LDS) Ltd. unveiled an unmanned aerial system (UAS) designed for the purpose of explosive detection. The platform, SpectroDrone, utilizes a laser-based explosive detection system to detect explosives and other hazardous materials, in gas, liquid, powder or bulk form, at a distance of several meters from the threat (Tamir, 2016).  

The laser-based detection system is the UAS’ primary sensor and is derived from LDS’ detection technology. The system is comprised of multiple electro-optical assemblies, a laser source that emits at several wavelengths, a laser range finder, and a high-resolution camera – all integrated with spectrometers operating LDS’ software package and proprietary algorithms (Tamir, 2016). The system is designed to use laser spectrometry to identify a variety of hazardous materials.

While the SpectroDrone is intended to be a sUAS based detection system, it is not limited to that alone. As stated by Eli Venezia, the president of LDS, the sensor payload employed by the drone can be adapted for use on ground vehicles, robots, and more (Lo, 2017). This ability makes for a detection system flexible enough to adapt to the dynamic environment of today’s battlefields.

The technology shows promise in applications ranging from military logistic movement support to explosive ordnance disposal (EOD) activities. There are obvious benefits to increasing separation from human operators and hazardous materials and explosive devices. As noted, laser spectrometry is not limited to explosive detection, but can also be used to detect many other substances including narcotics, chemicals, biological substances, other hazardous materials, and different mineral materials (Tamir, 2016). Laser spectrometry based detection is not new, but its adaptation to smaller, more accessible platforms is. Laser detection has potential to be an up-and-coming technology within the unmanned community for a braoder range of uses.


Reference

Lo, C. (2017, February, 1). Explosives Detection: The World’s First Sniffer Drone. army-technology.com. Retrieved from http://www.army-technology.com/features/featureexplosives-detection-the-worlds-first-sniffer-drone-5729390/


Tamir. (2016, November 15). SpectrDrone by LDS: Drone-Operated, Laser-Based Explosive Detection System. Laser Detect Systems. Retrieved from http://laser-detect.com/spectrodrone-by-lds-drone-operated-laser-based-explosive-detection-system/

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