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Title DESIGN OF A LOW POWER CARGO SECURITY DEVICE USING A MICROPOWER ULTRA-WIDEBAND IMPULSE RADAR
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Publication Date
Degree MS
Discipline/Department Electrical Engineering
Degree Level masters
University/Publisher Cal Poly
Abstract Each year, thousands of cargo containers are broken into during shipping, costing billions of dollars in lost and damaged goods. In addition to removing its contents, intruders can also add unwanted and dangerous materials to a container, posing a threat to National Security. The possibilities of cargo container break-ins require that the containers go through check points at which they are physically searched. These searches often require the opening of the container, unloading and inspecting all cargo, and then loading the container and resealing it. This is a long and costly process. Because of the high costs of break-ins and inspections, many security devices have been developed to ensure the safety and detect the tampering of cargo containers. Most of these mechanisms involve more intricate door locks and electronic seals that are able to add a degree of security to the containers. Other “smart” cargo security devices exist, which employ a variety of sensors to detect intrusion, however, none of the current solutions are reliable and practical enough to eliminate the necessity for frequent inspection of cargo containers. The shipping industry is in need of a reliable, unobtrusive, low-cost, low-effort cargo security device. Over the last two decades, Lawrence Livermore National Laboratory (LLNL) has been developing a micropower impulse radar capable of detecting objects and motion within a short to medium range. Due to its past uses for intrusion and motion detection, the LLNL micropower impulse radar is a top prospect for a sensor technology used in a cargo security device. This paper describes the design of a low-power, low-cost cargo security device which uses the LLNL micropower impulse radar for the detection of shipping container intrusions. With the evaluation of the impulse radar as well as various other sensors, a device was created which successfully detected intrusions over 98% of the time with the capability of lasting 5 to 6 months when powered by two AA batteries.
Subjects/Keywords Ultra-wideband; Cargo Security Device; Impulse Radar; Electrical and Electronics; Hardware Systems
Contributors John Oliver
Country of Publication us
Record ID oai:digitalcommons.calpoly.edu:theses-2200
Repository calpoly
Date Retrieved
Date Indexed 2019-12-16
Created Date 2013-12-01 08:00:00

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…National Laboratory (LLNL) has been developing an ultra low-power impulse radar capable of detecting objects and motion within a short to medium range. The radar has been used in many different applications and is a proven reliable technology. Due…

…to its past uses for intrusion and motion detection, the LLNL micropower impulse radar is a top prospect for a sensor technology used in a cargo security device. This paper discusses a CSD developed under the auspices of the U.S. Department of Energy…

…reached by the automated and inexpensive detection and reporting of the change in the tamper state of a cargo container that is initially known to be secure, using a cargo security device (CSD) consisting of a battery powered impulse 2 radar…

…requirements. In Section 2, currently available systems and technologies for cargo security will be discussed. A more in depth description of the LLNL micropower impulse radar and how it operates is presented in Section 3. The design of the CSD including the…

…x5B;15]. 10 3. LLNL Impulse Radar The CSD’s functionality is built around the ability of LLNL’s micropower impulse radars. This technology is what separates this CSD from other options that are already available. This study’s main goal is to…

…implement the micropower radar into a security device and compare its detection ability to that of current sensor devices currently being used. The micropower impulse radar is an ultra wide-band sensor which transmits and receives narrow pulses of energy…

…to intruding objects, a problem that PIR and ultrasonic sensor have. A side effect, which has become one of the greatest features of the micropower impulse radars, is that the power consumption of the radar is very low due to the short time duration…

…of the transmitted pulses. Typically, ultra-wideband radars emit pulses with durations between .2 and 1 nanosecond [12]. These properties of the impulse radars are in contrast to traditional radars which transmit energy in a single frequency…

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