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Poor air quality in urban areas is becoming an important problem that needs to be addressed. This paper presents the system architecture of project Urb@nEcoLife for compilation of environmental data using low-cost data sensors. Although there are several proposals dealing with sensor networks, most of them focus on solving partial problems. Urb@nEcoLife is a comprehensive proposal that develops a...
Automation of modern industrial plants require real-time tracking of object locations and sensing of local and ambient parameters for variety of applications such as counting and tracking of objects in assembly line, detection and positioning of failures of machines etc. Mostly, discrete Real Time Location System (RTLS) performs object tracking in existing industrial automation without its integration...
Software Defined Networks (SDN) have been utilized in applications of the Internet of Things (IoT), termed as software-defined IoT network, because of the popularity and capability of mobile devices being used for networking in relatively large areas. In a software-defined IoT system, the sensing data are asynchronously harvested by the mobile sensing nodes, and are also asynchronously uploaded to...
The resource constraint is one of the top issues in the Internet of Things network. All activity in the network node should be carefully designed and managed to support the resource efficiency of the network. Hence, an energy efficient transceiver like ZigBee is popularly used as the infrastructure for the Internet of Things edge network. This paper presents our method for efficient ZigBee router...
The remote monitoring and control of machines are essential in industrial environments. Emerging communication technologies such as Web of Things and Machine to Machine Communication can meet this demand for automation in Industry 4.0. This paper aims to introduce a solution for continuous and remote monitoring of electrical quantities in smart industrial environments with three-phase systems. The...
Non-invasive, environmental monitoring is being successfully utilised to improve health care outcomes for patients while allowing them to more safely and comfortably live in their homes instead of health care facilities. This promises to reduce costs and ease the health care burden for many countries globally. However, these systems are still in early stages of research and only highly skilled researchers...
In this paper, we present a simple differential CMOS ISFET based pH sensor. The design uses two different sensing areas. The resulting sensor reduces complexity and power consumption making it suitable for implantable biomedical applications. The design is implemented in a standard 130nm process and the design constraints on sensitivity are explored. Analytical results based on theory show that sensor...
This paper reports on the layout optimization of Pt-AlGaN/GaN HEMT-sensors for enhancing hydrogen sensor performance. Sensors with gate width and length ratios Wg/Lg from 0.25 to 10 were designed, fabricated and tested for the detection of hydrogen gas at 200 °C. Sensitivity, sensing current variation and transient response are directly related to the sensor gate electrode Wg/Lg ratio. The obtained...
Here, the utilizing of lateral unidirectional bipolar-type insulated-gate transistors (Lubistors) for pH detection was demonstrated for the first time. The high on current and ambipolarity of Lubistors are favorable properties for reliable sensing application. The ultrathin Lubistors were fabricated on 20-nm-thick SOI substrates in planar geometry. The triode-like current-voltage characteristic and...
The proof of concept of a new extended-gate pH sensor, developed on an industrial ultrathin body and buried oxide (UTBB) fully-depleted silicon-on-insulator (FDSOI) transistor, is reported. The strong electrostatic coupling between the front gate and back gate of UTBB FDSOI devices provide a signal amplification opportunity for sensing applications. On the other hand, the biasing capability through...
Vehicular communications are gaining one of the largest share of the automotive IoT market. The combination of the automotive sector with the transportation resulted in the emergence of the concept of connected vehicles. Therefore, motivating new proposals for real-time applications for managing traffic and incident alerts to improve the overall mobility and road safety. The growing demand for new...
In this paper we discuss the Internet of Things (IoT) by exploring aspects which go beyond the proliferation of devices and information enabled by: the growth of the Internet, increased miniaturization, prolonged battery life and an IT literate user base. We highlight the role of feedback mechanisms and illustrate this with reference to implemented computer enabled factory control systems. As the...
Nowadays, buildings are being progressively integrated with an increasing number of sensors. However, in most cases, these sensors are application specific, limiting their productivity and scalability. In order to extend the usual scope of ordinary sensors, in this paper, we propose and describe the implementation of a system based on sound and vibration sensors, embedded in the walls of a smart home...
Internet of Things (IoT) can be perceived as enabling user-specific interoperable communication services by integration of sensing and actuation technologies with other leading technologies, such as telecommunication, networking, security and cloud computing etc. Application of the ubiquitous IoT technologies to augment healthcare systems inadvertently exposes the latter to unpredictable, disruptive...
Matsuda et al. proposed a countermeasure against laser fault injection that uses distributed on-chip sensors. The sensor raises an alarm by detecting an electrical phenomenon caused in conjunction with a bitflip. A cryptographic module can stop releasing a faulty ciphertext by using the alarm. In this paper, security and limitation of the countermeasure by Matsuda et al. is rigorously evaluated. We...
This paper presents a technique to integrate wireless field devices using WirelessHART and ISA100.11a technologies into a condition monitoring system based on Wonderware InTouch software. The proposed integration brings the data from a field site with digital multi-device networking for automatic data collection to support the condition monitoring of instruments or smart connected equipment in preparation...
This paper describes an implementation of a preprocessor with a perceptron for applications in amperometry. The perceptron operates in the current mode, in the weak-inversion area and makes it possible to process analog current signals with values below 1 nA. This paper presents an axon structure consisting of six transistors and a programmable dendrite with a fully digital interface implementing...
Formal methods help in coping with the growing functionality and complexity, time-to-market and costs in cyber-physical systems (CPSs). Supervisory control synthesis (SCS) is such a method. It can be used to synthesize a controller for a CPS from the uncontrolled system model (plant) and the specification model (requirements). While SCS is an active research topic, reports on industrial applications...
In this paper, we focus on the design and development of an Internet-of-Things (IoT) assisted real-time automatic meter reading (AMR) system for deployment in smart cities. At the bottom layer, the system is supported by a ZigBee mesh wireless sensor network (WSN), in which electricity meters are the end user nodes. A ZigBee gateway node enables communication between the electricity meters and the...
The advancing trend to autonomous driving tightens the requirements for automotive microcontrollers with embedded flash memories. High reliability and low latency demands however have prevented the broad usage of multilevel-cell flash in this sector so far. This paper describes a robust time-domain voltage sensing scheme tackling the challenges arising from these tight conditions. A dynamic voltage...
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