Alarm system optimization for increasing operations productivity

Yuki, Yoshitaka

doi:10.1016/s0019-0578(07)60095-0

Cited by 22 publications

(9 citation statements)

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“…This new finding needs to be further investigated with the users before introducing it in the design. This is to ensure the alarm signals do not have a startling effect and prolonged alarm signal do not cause alarm fatigue or habituation effect [31,32].…”

Section: Discussionmentioning

confidence: 99%

Testing of Auditory Clinical Alarms in ICU/CCU

Thangavelu¹,

Supriyanto

Yunus³

2020

IJORAS

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Almost all medical devices in ICU/CCU have a built-in clinical alarm system to alert when there are changes in a patient’s condition. The objective of this study is to investigate the effectiveness of the existing alarm system in ICU/CCU. Two summative usability tests were conducted to test the effectiveness of existing and new alarm signals based on IEC 60601-1-8:2006 standard. Further formative test is conducted to study the perception of urgency associated with a number of tones in the alarm signals. The findings indicate that the existing auditory alarm signal in ICU/CCU does not indicate the urgency of the alarm conditions. The simulation test indicates that the respondents preferred 282Hz, 500Hz and 800Hz for low, medium and high-risk alarm respectively. The one-sample proportion z test on urgency mapping indicates that the proportion of responses for the highest risk is more than 50% for a single tone test signal. These results show that a single tone test signal being perceived as the highest risk is regardless of frequency. It can be concluded the auditory alarm designed based on this IEC 60608-1-8:2006 standard is not effective. As such it is proposed that the incorporation of the new alarm frequencies and tones will improve the effectiveness of the alarm signal

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Section: Discussionmentioning

confidence: 99%

Testing of Auditory Clinical Alarms in ICU/CCU

Thangavelu¹,

Supriyanto

Yunus³

2020

IJORAS

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“…Major identified requirements for an optimized bed-exit alarm system were usability, wide range usage, low costs, hygiene factors, integration into nursing beds and nurse call systems and an adequate alarm/false alarm ratio with early alarm trigger functionality (Yuki 2002). On the basis of the criteria mentioned above, Hilbe et al (2010) developed an integrated bed-exit alarm system and collected data regarding preliminary sensitivity and specificity for alarm set-off.…”

Section: Bed-exit Alarm Systemmentioning

confidence: 99%

Use of Information Technology for Falls Detection and Prevention in the Elderly

2014

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This research aims to clarify the arguments in the body of knowledge on IT use in fall prevention among the elderly, synthesize ideas to assist in the delivery of healthcare to prevent falls in older people and further add to the available body of knowledge. An extensive literature search was carried out and the information retrieved from the literature was synthesised into paragraphs using themes to structure the types of information technology used for falls prevention. The different modalities of IT used in falls prevention at the different places of care for each category were explored and inferences were drawn from the structured themes which summarized the major findings. The research found that there is potential ground for a wider use of the forms of IT used in falls prevention in the elderly in various settings and outlined the factors involved in this usage. With further refinements in larger studies, many of these forms of IT would be better explored and acceptance is likely guaranteed provided they are accessible and affordable. The need for IT use in fall prevention in the elderly is unavoidable with the trend in technology and the associated convenience. More work is needed to further define the effects of IT in falls prevention using larger prospective studies that will be more generalizable.

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“…Now, the alarm system is the first protective layer and the core component of modern industry safety. However, an unreasonable alarm system configuration may result in alarm floods and reduce its performance as a safeguard for plant operations (Folmer, Pantförder, & Vogel-Heuser, 2011;Rothenberg, 2009;Yuki, 2002). Now-days, the number of nuisance alarms in almost every alarm system is huge, which is far more than the operators' ability to handle.…”

Section: Introductionmentioning

confidence: 99%

A generalized alarm delay-timer’s performance indices computing method

Lin

Sun

Bai

et al. 2018

Systems Science & Control Engineering

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With the rapid development of the modern process industry, the importance of the alarm system has become significant. In general, too many nuisance alarms exist in alarm systems and distract operators' attention from paying attention to the real abnormal situation. As an effective technique to remove nuisance alarms, the alarm delay-timer is applied extensively in practice. Due to the defects of the alarm delay-timer, the generalized alarm delay-timer is proposed recently as an improvement. But the alarm performance indices alarm rate (FAR), missed alarm rate (MAR), and average alarm delay (AAD) for the generalized alarm delay-timer are not obtained easily so far. In view of this fact; first, a generalization computing method is proposed in the form of three formulas based on the Markov models. Second, the application range of the generalized alarm delay-timer and conventional alarm delay-timer are compared through a numerical simulation. Finally, the procedures of applying the generalized alarm delay-timer are illustrated by a simulation example.

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Alarm system optimization for increasing operations productivity

Cited by 22 publications

References 0 publications

Testing of Auditory Clinical Alarms in ICU/CCU

Testing of Auditory Clinical Alarms in ICU/CCU

Use of Information Technology for Falls Detection and Prevention in the Elderly

A generalized alarm delay-timer’s performance indices computing method

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