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This paper aims at presenting an experimented low power Internet of Things architecture, that could be integrated to underwater monitoring systems like Autonomous Underwater Vehicles for wireless underwater sensing. The proposed hardware architecture of the sensor nodes is based on an ultra-low-power Flash Micro-controller that takes measurements from water sensors, and synchronizes the network by...
The goals of this research are to design a 3D printed environmental data logger while considering sensor packaging space constraints and to implement a smart power consumption system for increased endurance. The product is sealed for harsh environmental conditions per IP65 standard as well as for impacts. In this paper, we share our electronics packaging design approach for a mobile sensor suite so...
MannaSim is an extension to the consecrated network simulation tool NS-2, to simulate Wireless Sensor Networks (WSN). However, MannaSim's power consumption module can be improved to include some influential factors in a WSN. The objective of this work is to present PowerMannaSim. This extension provides two important features for the simulation of energy consumption in a WSN. The first one is an estimating...
Wireless sensor networks (WSNs) devoted to environmental monitoring has preponderantly assumed the adoption of a portable and limited energy source, (e.g. lithium, alkaline, NiMH batteries), to support the sensor functionalities. The usage of environmental resources as energy booster is now rising up as a workable energy source dedicated to embedded and wireless computing systems where manual replacement...
The Internet of Things (IoT) is a rapidly emerging application space, poised to become the largest electronics market for the semiconductor industry. IoT devices are focused on sensing and actuating of our physical environment and have a nearly unlimited breadth of uses. In this paper, we explore the IoT application space and then identify two common challenges that exist across this space: ultra-low...
In order to satisfy the chamber pressure testing requirements of small and medium caliber artillery, the miniature internal electronic pressure gauge is designed, which adopted low power technology and miniaturization technology and storage testing technology. This paper describes the working principle and the hardware design process of the gauge, and introduces the work state of the gauge. The gauge...
This paper presents a component based wireless monitoring and control system. The system is introduced from both the system architecture and function point of view. The paper begins with the introduction of the component design and the communication interaction between them. The system is composed by three components, the wireless sensor network, the local server and the main server. Wireless sensor...
A container security device (CSD) monitors intrusion through the cargo door; it is a reduced function device that uses IEEE 802.15.4 with a beacon mode. However, in the beacon mode, the CSD consumes too much battery power in periodical listening and sensing trials even when there is no CSD reader. Therefore, we propose a low-power CSD to reduce the unnecessary power consumption. The proposed CSD follows...
A wearable, wireless 2-channel electro-encephalography (EEG) system has been realized which functions fully autonomously, without any batteries. It is fully powered by human body heat using a thermo-electric generator which can produce over 2 mW at 23degC. It uses two of IMECpsilas ultra-low power biopotential electronics chips to record high-quality EEG signals. The whole system consumes only 0.8...
The paper introduced the electric alcohol nose system which consists of alcohol sensor, MSP430 MCU and peripheral units. The electric alcohol nose system can recognize and check the concentration of alcohol in the gas breathed by a drunk driver or a driver who drink alcohol. The system is described from two aspects of hardware and software. The hardware system is a typical application system consisted...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
Sink mobility has become an increasingly important requirement of various sensor network applications. Handling such mobile sink conditions brings new challenges to large-scale sensor networking. This investigation proposed a hybrid-structure routing protocol (HSRP) that combines the benefits of grid-based and cluster-based structures. Grid-based structure is designed to solve the cluster head selection...
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