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The solar power plant is one of the renewable energy that already was implemented in around the world. The important component in the renewable power plant is inverter device that convert the direct current to alternating current. The problem in the inverter are power quality, harmonics, and grid system. This paper introduced design inverter single phase with totem pole circuit. The circuit reduces...
Hemoglobin is important part of red blood cell to transport oxygen and carbon dioxide. Hemoglobin concentration in the blood can be used as physical condition parameter. A low hemoglobin level is called anemia and high hemoglobin level is called polycythemia. WHO has determined the anemia cut off level of hemoglobin concentration based on age, sex, and condition (pregnant or not). Currently, accurate...
Low Power Wide Area (LPWA) networks present a new communication paradigm in wireless sensor networks. Their ability to convey information over larger geographical areas, while still enabling low-power consumption and longer lifetime, gives them a special place in realization of Internet of Things (IoT) systems and applications. Compared to traditional cellular networks and other short range technologies...
This research presents a frequency reconfigurable antenna scheme for wireless communications [worldwide interoperability for microwave access (WiMAX), mobile WiMAX and wireless local area network], in which a PIN diode is utilised for the discrete tuning and a varactor diode for the subsequent fine-tuning. A microcontroller-controlled embedded biasing network (EBN) is integrated into the antenna to...
“Smart Weight Based Toll Collection & Vehicle Detection During Collision using RFID” addresses the problems faced at the toll plaza. The system also identifies the vehicles against which stolen and accident cases are registered using RFID. Initially user has to create an account and register his RFID number at central database using the mobile application. When a vehicle with RFID tag passes through...
PoP or (Point of Presence) is a part of the outermost infrastructure of an ISP that is used to connect the ISP to the customer. PoP is a room which contains servers and aic conditioners. The air conditioners are used to make room remains cool and prevent servers from overheat. In most PoP out there, the operator monitors room every month in order to ensure the cool temperature. In this research, a...
This paper presents the development of an automatic pointing system for very small aperture terminal (VSAT) antenna. The system which uses AVR microcontroller as a main controller unit (MCU) is featured with non-horizontal alignment autocorrect. User interface is implemented using android smartphone connected wirelessly to the MCU using bluetooth module. The android smartphone also reads the latitude...
For environmental impact analysis remote hosting of instrumentation system consisting of sensors provides a seamless, authentic method of establishing communication. These methods provide the on the spot parametric measures for prediction analysis and disaster management. Though the drones provide visual imagery of the impacted area, they are faced with payload and power limitations when sensors are...
This paper presents the design of a wireless and batteryless heart rate monitor. The measurement is done using a single-lead ECG raw signal. The design is based on a commercial ultra low power microcontroller, an optimized full-custom RF Front-End, a ultra low power Threshold Comparator and a Programmable Gain Amplifier implemented in commercial 90 nm CMOS. The communications are compliant with the...
A new topology for a robust HFAC enabled bi-directional AC-AC converter is presented in this paper. HFAC PDSs are gaining traction in critical applications within outer space, aerospace and ground transportation PDSs as well as in renewable energy systems due to their advantages of being light deadweight, high power density, smaller capacitors and low arc-flash fault risk etc. Due to prominent adverse...
A pre-processing algorithm for the detection of shotguns has been implemented using the General Cross-correlation (GCC) method. The relationship between Sound Pressure Level (SPL) and distance for different gunshot sounds are studied to determine whether the sound is loud enough to be detected as a gunshot at a certain distance range. The shotgun sound pattern received is made to correlate with a...
Outsourcing designs to 3rd party vendors is a common practice in the integrated circuit (IC) manufacturing industry. This outsourcing brings advantages such as lower manufacturing cost and shorter time-to-market for a new system, which at the same time raises security threats in the IPs from 3rd party vendors. These IPs may contain hardware Trojans capable of compromising the product's confidentiality,...
Efficient use of electric energy by users is one of the critical ways for increasing energy efficiency, reducing cost of power generation and supply, and environmental concerns. As part of remedial measures to address issues of energy use, many technologies for demand reduction ranging from energy saving devices through a variety of energy management systems have emerged to help users manage and control...
Automated driving systems have to operate at the highest level of robustness and safety. Thus, redundancy and diversity of the deployed systems are inevitable in order to guarantee the functionality in any possible scenario. Today, the most used sensor technologies for environment perception are color cameras, radar, light detection and ranging (LIDAR), and ultrasonic sensors. This work evaluates...
Owing to the limitation of the fine pitch and the fine area array assembly, fine pitch package or micro BGA are facing challenges such as miniaturization, high density and assembly problems along with the rapid development of the high-density electronic packaging and surface mount assembly. The major limitation of the fine pitch packages is around 0.3mm. Exceeding this limitation encounters reliability...
This article presents the design and develop of a weather station for educational purposes, which can be monitored continuously under different kinds of climatological changes and works autonomously to the energy network. The proposal of this design is based mainly on the measurement of temperature, humidity, wind, UV radiation and rain parameters using low cost commercial sensors compatible with...
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...
This paper exposes some weaknesses of encrypted embedded memory in secure chips. Smartcards and secure microcontrollers are designed to protect confidential internal information. For that they widely employ on-chip memory encryption. Usually both data and address buses are encrypted to prevent microprobing attacks. This paper shows how practical such attacks can be on real chips and whether memory...
Developing sustainable wireless sensor networks (WSNs) poses a unique challenge in terms of estimating the trade off between autonomous sensor network operations and accessibility to constrained power resources. WSNs are expected to be operational for prolonged periods with minimal intervention. However, this imposes substantial cost in terms of power (battery) requirements in WSNs. Under several...
Complying with automotive EMC requirements is not difficult. If a product is non-compliant, there is a good chance that the designer failed to do one of the following things.
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