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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...
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...
An alternative electrical model for Ion-Sensitive Field-Effect Transistor (ISFET) sensors is presented in this work. The proposed model is worth to be employed in both DC and transient simulations where the behavior of the ISFET sensor coupled to its readout circuit can therefore be investigated. Whereas, previous models found in the literature could only be employed to perform DC simulations. The...
With the development of Internet of Things and embedded computing technology, the smart home system has become a hot research spot of embedded systems. In this paper, through combining the Internet of Things, a smart home system based on zigbee and power line carrier communication technology is designed. In addition, the gateway is an important part of the smart home system, and its communication...
The Internet of Things (IoT) continues to expand in terms of the number of connected devices. To handle the data produced by those devices, gateways are deployed to collect data, possibly to analyze it, and finally to send it to the cloud or to the end-user to support new services. This process involves complex software that is deployed on those gateways. Moreover, the dynamicity due to new services,...
Due to its flexibility and efficiency, cloud computing becomes a typical infrastructure for storing, processing, and sharing a large amount of Internet of Things (IoT) data collected from devices and sensors. However, data sent to the Cloud may be used incorrectly or copied without permission. To allow owner of data sent to the Cloud to grant access to a specific set of captured data fields for a...
In this paper, cognitive machine to machine (CM2M) gateway in e-healthcare systems are presented by accessing several channels via periodic sensing and spectrum handoff. An optimal energy efficient spectrum management mechanism with multiple thresholds is proposed. The developed mechanism aims to reduce energy consumption in the system by optimizing the spectrum sensing and channel switching, while...
This paper from the existing stm32 gateway, pointed out that the existing design of the lack of monitoring the environment to take pictures. Aiming at this problem, this paper presents a set of design and implementation based on stm32f103zet6 wireless gateway. This paper first gives the gateway hardware design, elaborated its working mechanism. In the software design to give the specific process of...
Bottom gate field effect transistors (FETs) with nano-porous TiO2 as channel has been designed, fabricated, characterized and packaged. The fabrication process is simple, scalable and reproducible. Reactive RF sputtering and lift off process was used for depositing and patterning TiO2 respectively. TiO2 was annealed to tune its crystallinity from amorphous to anatase. Microscopy study of TiO2 film...
The abundance of activity trackers and biosignal sensors as well as the evolution of IoT and communication technologies have considerably advanced the concept of Quantified-Self. Nowadays there are several frameworks and applications that realize the concept, focusing though strictly on specific areas, from daily use to professional activities such as sport and healthcare. This work proposes a versatile,...
To optimize the classic design trade-off between EMI noise and power efficiency in GaN power drivers at 10MHz and beyond, a closed-loop adaptive Miller Plateau sensing (AMPS) technique is proposed. In order to mitigate long delays and low accuracy issues in conventional Miller Plateau (MP) sensing approaches, an emulated MP tracking (EMPT) technique is adopted to achieve instant MP start point sensing...
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