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In this paper, we presented the design of low-cost, compact and wireless 12 lead Electrocardiogram analog front-end (AFE) system using TI ADS 1198. ECG analog front-end (AFE) systems are designed with ASICs or custom designed ICs which are too expensive to be used. The main components of a conventional ECG system include instrumentation amplifiers, operational amplifiers that implement active filters...
In the context of Industry 4.0, constantly evolving shop floors generate the need for a highly adaptive and autonomous automation system with lean maintenance, minimum downtime, maximum reliability, and resilience. Future Manufacturing Execution Systems (MESs) will be more complex and dynamic as well as distributed physically and logically. This makes it very difficult, if not impossible, for the...
The stability of interconnected large power systems — like the Brazilian National Grid (SIN) — is directly compromised by weakly or not damped low frequency oscillations and transitory oscillations, these latter originated from large contingencies. In order to identify and control the system oscillation modes efficiently, the dynamic behavior of various wide areas, it becomes necessary synchrophasor...
Network function virtualization (NFV) is one of the promising technologies for the next-generation network. In the NFV environment, reliability and availability should be guaranteed at different levels through the use of monitoring frameworks; however, the current monitoring frameworks only focus on NFV infrastructure (NFVI)-related faults and not VM-related faults. In this paper, the current NFV...
Due to technology scaling, which means smaller transistor, lower voltage and more aggressive clock frequency, VLSI devices are becoming more susceptible against soft errors. Especially for those devices deployed in safety- and mission-critical applications, dependability and reliability are becoming increasingly important constraints during the development of system on/around them. Other phenomena...
All vehicles produced today must be fitted with an On-Board Diagnostic (OBD) interface. With the help of the OBD a data connection through the Controller Area Network (CAN) is realized with the Engine Control Unit (ECU). This control unit is instrumental in optimizing the engine performance. There are many OBD adapters on the market today, ranging from the cheap Do-It-Yourself kind to expensive, professional...
In view of short distance, inaccurate counting and slow speed of the intelligent meter reading system, the design scheme of a remote intelligent meter reading system based on GPRS is put forward. The hardware of system mainly includes four parts: GPRS wireless communication module, concentrator, collector, and monitoring center. The communication layer adopts double layer structure, the upper layer...
The problem of the early detection of forest fires in isolated areas is studied, as is the case of Torres del Paine National Park, as an area of very high tourist interest, an economic engine of the Magallanes region, and currently a world reserve of The Biosphere according to UNESCO. No communication connectivity, and presents important logistical challenges to deploy and install equipment, with...
This article presents the design of a telecommunications network that allows the monitoring of mud, earth, rock and debris flows produced by slope overflows in the main arterial roads of the city of Cuenca, Province of Azuay. This network is integrated in a system of monitoring of the SIS ECU 911 of the City of Cuenca. The system has been conceived as a set of devices such as wireless modules and...
Crowd-based requirements engineering (CrowdRE) is promising to derive requirements by gathering and analyzing information from the crowd. Setting up CrowdRE in practice seems challenging, although first solutions to support CrowdRE exist. In this paper, we report on a German software company's experience on crowd involvement by using feedback communication channels and a monitoring solution for user-event...
Security is a major issue nowadays for the embedded systems community. Untrustworthy authorities may use a wide range of attacks in order to retrieve critical information. This paper introduces ARMHEx, a practical solution targeting DIFT (Dynamic Information Flow Tracking) on ARM-based SoCs (e.g. Xilinx Zynq). Current DIFT implementations suffer from two major drawbacks. First, recovering required...
The objective of our research is to define a requirements model for Adaptive Multi-organizational Systems. Our work considers the functional complexity of contemporary internet-based, multi-organizational systems. Not only the business functions, but also the interactions between the components of such systems are highly dynamic and global. Furthermore, these systems function in extremely uncertain...
Today's complex software systems consist of several components that interact in complex ways to provide services to users. In doing so, these systems go through continuous assessment of their context and configure themselves accordingly to keep user satisfaction high. A popular approach to design adaptive software systems is to perform variability modelling, for instance adopting a feature-based approach...
Collecting and using user feedback as a method to support requirements engineering, might undermine user rights. This becomes apparent when looking at related areas, e.g., research in user experience, where collecting user feedback also plays an important role. In such settings, researchers need to ensure that the stakeholders' rights and integrity are respected. This paper identifies and discusses...
The vehicle software has many errors potentially because of the increased complexity of the electrical / electronic system of the vehicle. And in accordance with the ISO26262 standard, functional safety requirements for vehicle electronic modules are increasing. Therefore, in this paper, we analyze the failure modes which are required in ISO26262 Part 5, 6. And we propose design guidelines to meet...
Security in embedded systems remains a major concern. Untrustworthy authorities use a wide range of software attacks. This demo introduces ARMHEx, a practical solution targeting DIFT (Dynamic Information Flow Tracking) implementations on ARM-based SoCs. DIFT is a solution that consists in tracking the dissemination of data inside the system and allows to enforce some security properties. In this demo,...
Scaling clusters is no longer the only struggle in moving towards exascale in HPC. While scaling components such as the network and file systems is a widely accepted need, monitoring, on the other hand, is often left behind in the procurement of these large systems. Monitoring is often quite an afterthought that is expected to be incorporated in existing infrastructure. While that often works for...
As software changes, it may become more difficult to under-stand, to be changed and harder to be reusable. In such cases, reengineering is a well-suited approach. While reengineering a system for renovation and reclamation, an organization gener-ally reassesses how the system implements high-level business requirements and makes modifications to conform to desired changes. Reengineering usually involves...
Nowadays agile development has become a mainstream development methodology. Yet agile is still lacking in how in-depth it deals with Requirement Engineering (RE) compared to the other development stages. There have been attempts to apply agile RE techniques to traditional development and conversely to apply traditional RE techniques to agile development. But the biggest problem is that it is difficult...
Mobile Broadband (MBB) Networks are evolving at a fast pace, with technology enhancements that promise drastic improvements in capacity, connectivity, coverage, i.e., better performance in general. But how to measure the actual performance of a MBB solution? In this paper, we present our experience in running the simplest of the performance test: "speedtest-like" measurements to estimate...
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