Krishnamoorthy, Rajaram, R, Leelavathi · Zenodo (CERN European Organization for Nuclear Research) · 2025
In today’s fast-paced healthcare environment, efficient communication between patients andcaregivers is critical. “Nurse Call System Using PIC Microcontroller” presents a compact, reliable, andcost-effective embedded solution aimed at improving hospital communication infrastructure.This book explores the design, development, and implementation of a real-time nurse call system usingthe PIC12F675 microcontroller. It covers both the hardware and software aspects, including detailedcircuit diagrams, component descriptions, block diagrams, and coding procedures using MPLAB IDE.From re-engineering traditional systems to deploying a modern embedded controller, this book takesreaders through the complete lifecycle of the project—from concept to installation. It also discusses thepractical rewiring, integration with hospital modules, and real-time testing, making it a valuable guidefor biomedical engineers, electronics students, and healthcare technologists.With clear explanations, real-world implementation insights, and a future scope towards wirelesssystems, this book serves as a practical reference for those seeking to innovate in healthcaretechnology.
Cited by 0Open access
Krishnamoorthy, Rajaram, R, Leelavathi · Zenodo (CERN European Organization for Nuclear Research) · 2025
In today’s fast-paced healthcare environment, efficient communication between patients andcaregivers is critical. “Nurse Call System Using PIC Microcontroller” presents a compact, reliable, andcost-effective embedded solution aimed at improving hospital communication infrastructure.This book explores the design, development, and implementation of a real-time nurse call system usingthe PIC12F675 microcontroller. It covers both the hardware and software aspects, including detailedcircuit diagrams, component descriptions, block diagrams, and coding procedures using MPLAB IDE.From re-engineering traditional systems to deploying a modern embedded controller, this book takesreaders through the complete lifecycle of the project—from concept to installation. It also discusses thepractical rewiring, integration with hospital modules, and real-time testing, making it a valuable guidefor biomedical engineers, electronics students, and healthcare technologists.With clear explanations, real-world implementation insights, and a future scope towards wirelesssystems, this book serves as a practical reference for those seeking to innovate in healthcaretechnology.
Cited by 0Open access
Özlem Algan · Istanbul Technical University Academic Open Archive (Istanbul Technical University) · 1990
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 1990
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Vertelka, Mindaugas, · KTUePubl (Repository of Kaunas University of Technology) · 2004
Cited by 0Open access
Dinh Quoc Nguyen · Opus: Research & Creativity (Indiana University – Purdue University Fort Wayne) · 1990
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Data Processing · 1986
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Tom Arcidiacono · 1988
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&NA; · Nursing Research · 1958
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Gee Man Teo · UTM Institutional Repository · 2013
Hospital emergency nurse call system depend on fast response time. While several hospital nurse call system have already been developed in the market, we found that most of them suffer from speed and cost issues. Ordinary nurse call systems are costly with cable setup and not portable as they are fixed above patient’s bed. One of the ways of solving this issue is by using portable nurse call system. With this system, patients will be able to call for help wherever they want. These certainly shorten response time for hospital’s stuffs to reach patients. In this project, a new prototype of portable nurse call system that uses Wifi internet network is developed to improve the system mobility. A cheaper and easy programmed system development board (Arduino) was chosen. A Wifi module - Xbee module was added to the development board in order to connect to Wifi internet network. Some sensors were added to emulate a real system. System was then tested for its functionality and practicality. Data packets sent through TCP/IP were investigated. This portable developed system are able to speed up the response time of hospital’s stuffs toward patients.
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G.V. Kopcsay, P.J. Meier · Defense Technical Information Center (DTIC) · 1976
This is the final technical report describing the design and development of a low-cost shipboard Mast Mounted CALL ALERT (MMCA) receiver system. Three prototype MMCA systems were built to demonstrate the feasibility of the design. These engineering models were configured so that they can be tested aboard ship to demonstrate the practical utility of the MMCA system. The equipment developed on this program depended heavily upon AIL's patented fin-line 1 millimeter wave transmission techniques. By utilizing its fin-line techniques, AIL's goal in the proposed program was to evolve a design that will ultimately minimize the cost of the system to the Navy. The proposed program was dedicated to this goal by planning, specifying and designing for low cost from the inception of the project. The MMCA system is intended to be used aboard Navy ships as a means of alerting appropriate personnel of the existence of an incoming signal in the Ka frequency band and of the approximate direction of its origin. The key components of this system are: (a) A narrow-beam horn antenna, rotating in the azimuth plane, (b) A Ka-band receiver having the appropriate sensitivity and noise figure, and (c) A visual and aural display indicating the presence and direction of origin of the received signal.
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Nursing Older People · 1995
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D. Mutz, Fredrik Valeur, Giovanni Vigna et al. · ACM Transactions on Information and System Security · 2006
Intrusion detection systems (IDSs) are used to detect traces of malicious activities targeted against the network and its resources. Anomaly-based IDSs build models of the expected behavior of applications by analyzing events that are generated during the applications' normal operation. Once these models have been established, subsequent events are analyzed to identify deviations, on the assumption that anomalies represent evidence of an attack. Host-based anomaly detection systems often rely on system call sequences to characterize the normal behavior of applications. Recently, it has been shown how these systems can be evaded by launching attacks that execute legitimate system call sequences. The evasion is possible because existing techniques do not take into account all available features of system calls. In particular, system call arguments are not considered. We propose two primary improvements upon existing host-based anomaly detectors. First, we apply multiple detection models to system call arguments. Multiple models allow the arguments of each system call invocation to be evaluated from several different perspectives. Second, we introduce a sophisticated method of combining the anomaly scores from each model into an overall aggregate score. The combined anomaly score determines whether an event is part of an attack. Individual anomaly scores are often contradicting and, therefore, a simple weighted sum cannot deliver reliable results. To address this problem, we propose a technique that uses Bayesian networks to perform system call classification. We show that the analysis of system call arguments and the use of Bayesian classification improves detection accuracy and resilience against evasion attempts. In addition, the paper describes a tool based on our approach and provides a quantitative evaluation of its performance in terms of both detection effectiveness and overhead. A comparison with four related approaches is also presented.
Cited by 253
Drue Rh · PubMed · 1976
The communications system has improved patient care; nursing personnel have found it to be extremely valuable and easy to use; and physicians are pleased with it, because their patients are receiving better care and because communications are speeded when they call a floor for information or to give instructions. Installation and use of the system have proved that, with proper planning, hospitals can incorporate custom-designed systems and features into new construction at reasonable cost. Memorial Hospital now is in the process of proving that these innovations also can be incorporated into a remodeling and modernization program. Of course, among the key elements in the success of such endeavors are the willingness and the ability of equipment designers and manufacturers to satisfy specialized needs.
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M. Galarraga, Charles-Alexis Lefebvre, Jon Pérez et al. · 2025
State-of-the-art safety-critical systems are increasingly integrating advanced functionality that requires high computational power, such as the pedestrian detection required by autonomous vehicles. Consequently, high-performance embedded platforms are becoming increasingly necessary. In this context, the use of Linux is highly attractive to industry due to its extensive ecosystem (platform support, AI libraries, etc.) and its opensource development model. However, Linux was not designed to comply with strict safety standards, which complicates its use in safety-critical systems. Previous works have studied the nondeterminism of Linux kernel system calls regarding their execution paths and execution times, and proposed alternative approaches to justify its use in such systems. In this work, we continue those efforts with two main contributions. First, we compare a regular Linux kernel with the kernel patched with the PREEMPT_RT real-time patch, and show how the patch reduces the variability of system calls, both in terms of timings and execution paths. Then, we propose an additional layer of assurance in the form of a trie-based monitor implemented in hardware, which ensures that the variability measured and estimated during testing holds when the system is fielded, both for execution paths and execution times. We implement a software prototype of the monitor to demonstrate its feasibility and discuss our plan to migrate it to hardware.
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IFRA-Nairobi · NAKALA · 1983
Cited by 0Open access
Weinberg Nj · PubMed · 1968
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Terry Jones, Andrew Tauferner, Todd Inglett · 2008
The changing landscape of high performance computing (HPC) hardware and applications poses a constant challenge to operating system architects. In this paper, we assess operating system evolution on the basis of several key factors related to system call functionality. Results are presented for Linux and Linux-like lightweight kernels. Comparisons are made with several other operating systems employed in high performance computing environments including AIX, HP-UX, OpenSolaris, and FreeBSD. Results are provided in tabular form. To our knowledge, this is the first such compilation of system call trends. 1.
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Yuan Zhang · 2005
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Brendan Edwards McLaughlin, Robin Ngo, James Chuen Poon · Digital WPI · 2002
This project consists of the design and construction of a device which prevents receipt of unwanted telephone calls. This system can be connected to the user's existing equipment (i.e. telephone and answering machine). When a call is received, this device will answer and prompt the caller for a code. If the code entered matches the one set by the user, this device will ring the attached telephone. If the code entered does not match, this device will connect to the attached answering machine.
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S. P. D. S. Karunarathna · 2009
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