Marko Jurčević

Fall Detection of Patients Using 3-Axis Accelerometer System

Triaxial accelerometers are used as a low cost solution in wide areas of patient care. This paper describes the use of triaxial accelerometer together with ZigBee transceiver to detect fall of patients. The system, including calibration of accelerometers and measurement is explained in detail.

Generic System for Remote Testing and Calibration of Measuring Instruments: Security Architecture

Generic System for Remote Testing and Calibration of Measuring Instruments: Security Architecture Testing and calibration of laboratory instruments and reference standards is a routine activity and is a resource and time consuming process. Since many of the modern instruments include some communication interfaces, it is possible to create a remote calibration system. This approach addresses a wide range of possible applications and permits to drive a number of different devices. On the other hand, remote calibration process involves a number of security issues due to recommendations specified in standard ISO/IEC 17025, since it is not under total control of the calibration laboratory personnel who will sign the calibration certificate. This approach implies that the traceability and integrity of the calibration process directly depends on the collected measurement data. The reliable and secure remote control and monitoring of instruments is a crucial aspect of internet-enabled calibration procedure.

Electrical measurements student laboratory : replacing hands-on with remote and virtual experiments

This paper discusses the problem of transferring knowledge to students of an undergraduate electrical measurement course, and also describes the design of a Web-based measurement laboratory and experimental setup of Web-based experiments at the Faculty of Electrical Engineering and Computing (FER) in Zagreb, Croatia. The suggested design offers the possibility of teaching or presenting high-precision experiments using expensive or sensitive equipment that is unavailable in sufficient quantities to serve large numbers of students.

Internet-Enabled Calibration Services: Design of a Secure Calibration System

A growing number of measurements in the commercial and industrial sectors need to refer to traceability to national and international standards. Instrument and reference standard calibration is resource and time consuming. Since many available digital instruments are provided with some communication interfaces and Internet-enabled metrology has rapidly been developing in recent years, it is possible to create an actual remote calibration system with remote control capabilities. This approach addresses a wide range of possible applications that can drive many kinds of different devices and can be easily upgraded. This paper focuses on some of the security problems regarding remotely executed Internet-enabled calibration processes.

Internet-enabled calibration services: aspects of laboratory information system security

A growing number of measurements in commercial and industrial sector needs to refer to the traceability to the national (and also international) standards. Since the Internet-enabled metrology is rapidly developing in the recent years, it offers new possibilities for calibration services. In the same time these services must provide the overall security of the calibration data from the point of acquisition to the storage and analysis process. Information security has become a critical part of information and communication systems that are used in ordinary metrology laboratories, especially in those who also perform remote (Internet-enabled) calibrations. This paper identifies and explores the different security issues of the Internet-enabled metrology and requests for public key infrastructure implementation in a laboratory information system

Internet-Enabled Calibration: A Future of Calibration?

Calibration of measuring instruments provides the confidence in measurements. It is the obligation of every laboratory to have its measuring equipment calibrated in regular intervals. This obligation means that the laboratory must send its equipment to the calibration laboratory every year or two depending on the calibration intervals. During this time the equipment is not available and this presents a financial burden to the laboratory of the customer. Since many of the modern instruments include some communication interfaces, it was made possible to create an Internet-enabled calibration system. This term encompasses a wide range of possible applications and services. The Internet-enabled calibrations must address several problems not present in standard calibrations, including security issues, since the equipment is not always under direct control of the calibration laboratory personnel who will sign the calibration certificate. As the traceability and integrity of the calibration process directly depends on the measured data, the reliable and secure remote control and monitoring of instruments must be a crucial aspect of Internet-enabled calibration technologies.