scholarly journals Development of a Low Cost Performance Monitoring System for Use on Board Naval Vessels

1982 ◽  
Author(s):  
F. A. H. Matthee ◽  
H. I. H. Saravanamuttoo
Keyword(s):  
Monitoring System ◽  
Performance Monitoring ◽  
Low Cost ◽  
Simple System ◽  
Great Promise ◽  
Monitoring Systems ◽  
Cost Performance ◽  
Diagnostic Capability ◽  
Marine Engineers

The availability of modern programmable calculators permits the development of low cost performance monitoring systems for onboard use on ships. Any system developed must be acceptable to normally qualified marine engineers, and a simple system using existing ship’s instrumentation to produce trend plots has been developed. Although extremely simple in concept, a diagnostic capability is provided; the level to which diagnosis can be carried out is dependent on the level of instrumentation provided. Tests have been carried out both on shore and at sea and the system shows great promise.

scholarly journals Low-cost performance monitoring system for solar water heaters

1978 ◽  
Author(s):  
R. D. Cummings ◽  
D. J. Peck ◽  
W. J. Hall
Keyword(s):  
Monitoring System ◽  
Performance Monitoring ◽  
Low Cost ◽  
Cost Performance ◽  
Solar Water ◽  
Water Heaters ◽  
Solar Water Heaters

Compressor Computerized Performance Monitoring System CPMS

2021 ◽  
Author(s):  
Vadim Goryachikh ◽  
Fahad Alghamdi ◽  
Abdulrahman Takrouni
Keyword(s):  
Natural Gas ◽  
Real Time ◽  
Monitoring System ◽  
Performance Monitoring ◽  
Compressibility Factor ◽  
Background Information ◽  
Monitoring Systems ◽  
Turbo Expander ◽  
Time Calculation ◽  
Performance Deterioration

Abstract Background information Natural gas liquid (NGL) production facilities, typically, utilize turbo-expander-brake compressor (TE) to generate cold for C2+ separation from the natural gas by isentropic expansion of feed stream and use energy absorbed by expansion to compress residue gas. Experience shows that during operational phase TE can exposed to operation outside of design window that may lead to machine integrity loss and consequent impact on production. At the same time, there is a lack of performance indicators that help operator to monitor operating window of the machine and proactively identify performance deterioration. For instance, TE brake compressor side is always equipped with anti-surge protection system, including surge deviation alarms and trip. However, there is often gap in monitoring deviation from stonewall region. At the same time, in some of the designs (2×50% machines) likelihood of running brake compressor in stonewall is high during one machine trip or train start-up, turndown operating modes. Also, typical compressor performance monitoring systems does not have enough dynamic parameters that may indicate machine process process performance deterioration proactively (real-time calculation of actual polytrophic efficiency, absorbed power etc.) and help operator to take action before catastrophic failure occurs. In addition, typical compressor monitoring systems are based on assumed composition and fixed compressibility factor and do not reflect actual compositions variations that may affect machine performance monitoring. To overcome issues highlighted above, Hawiyah NGL (HNGL) team has developed computerized monitoring and advisory system to monitor the performance of turbo-expander-brake compressor, proactively, identify potentially unsafe conditions or performance deterioration and advice operators on taking necessary actions to avoid unscheduled deferment of production. Computerized performance monitoring system has been implemented in HNGL DCS (Yokogawa) and utilized by control room operators on day-to-day basis. Real-time calculation, analysis and outputs produced by performance monitoring system allow operator to understand how current operating condition are far from danger zone. Proactive deviation alarms and guide messages produce by the system in case of deviation help operators to control machine from entering unsafe region. Actual polytrophic efficiency, adsorbed power calculations provide machine condition status and allow identifying long-term performance deterioration trends.

scholarly journals Design of a Portable Health Monitoring System Based on Node MCU

2019 ◽  
Vol 9 (2) ◽  
pp. 957-960
Keyword(s):  
Monitoring System ◽  
Health Monitoring ◽  
Public Hospital ◽  
Low Cost ◽  
Monitoring Systems ◽  
Electronic Components ◽  
Oxygen Saturation Level ◽  
Health Monitoring System ◽  
Health Monitoring Systems ◽  
Oled Display

In the present work, we have designed a health monitoring system based on Node MCU to monitor temperature, heart rate and oxygen saturation level (SpO2) signals, sensed by respective sensors. The necessary signal conditioning circuits have been designed in our laboratory using off-the shelf electronic components. A Data acquisition system has been designed using ESP 32 Node MCU. The designed system is a low-cost alternative to the commercially available USB controller based health monitoring systems. Firmware has been developed and deployed into the Node MCU using arduino IDE. The acquired data has been displayed on OLED display. The result shows maximum errors in the measured parameters within 2%. The designed system helps to achieve portability, high functionality and low cost which makes it an easy accessible tool for public, hospital, sports healthcare and other medical purposes.

Performance Monitoring Systems for Power Plants: General Features and Application Models

2002 ◽  
Author(s):  
M. Gambini ◽  
M. Vellini
Keyword(s):  
Monitoring System ◽  
Heat Recovery ◽  
Power Plants ◽  
Performance Monitoring ◽  
Measured Data ◽  
Diagnostic Information ◽  
Monitoring Systems ◽  
Heat Recovery Steam Generator ◽  
On Line ◽  
Plant Components

The general features and benefits of a performance monitoring system (PMS) and its capabilities on plant auditing and management are illustrated. The criteria for the validation and reconciliation of the measured data are tackled and the energetic diagnosis of components, by means the comparison between current performance and expected one, is shown. A “on line–real time” monitoring system evaluates the current performance of the power plant immediately and realistically, as well as it informs the operator of problems as soon as they occur and provides diagnostic information so that the operator can remedy the problem. After generals about PMS, two application models are shown: the first one deals with the reconciliation of measured data and it has been numerically developed with reference to a heat recovery steam generator; the second one deals with the energetic diagnosis of plant components and it has been developed with reference to a steam condenser.

scholarly journals Do-it-yourself, low-cost building monitoring system

2021 ◽  
Vol 2042 (1) ◽  
pp. 012042
Author(s):  
Olivier Steiger ◽  
Reto Marek
Keyword(s):  
Monitoring System ◽  
Energy Efficient ◽  
Low Cost ◽  
Monitoring Systems ◽  
Prototype Implementation ◽  
Building Monitoring ◽  
Do It Yourself

Abstract Monitoring systems are essential for the energy-efficient and comfortable operation of buildings. However, today's monitoring solutions are relatively expensive in terms of purchase, installation, and maintenance. At the same time, there is a need for low-cost monitoring systems, especially for smaller buildings. To address this need, a novel do-it-yourself, low-cost building monitoring system based on open technologies has been developed. The system is intended to be assembled and put into operation by laymen in accordance with given instructions. Accordingly, all work stages must be simple and obvious. This paper describes the low-cost monitoring system and its prototype implementation.

scholarly journals PROPOSAL OF MONITORING OF THE HEAT EXCHANGER STATION

2021 ◽  
pp. 237-243
Author(s):  
Patrik Šarga ◽  
Patrik Strnisko
Keyword(s):  
Heat Exchanger ◽  
Monitoring System ◽  
3D Visualization ◽  
Low Cost ◽  
Security System ◽  
Monitoring Systems ◽  
Teaching Process ◽  
Practical Test ◽  
Current State ◽  
Iot Platform

The presented paper describes the creation of a “low-cost” monitoring security system based on the IoT platform connecting to the cloud. We focused on heat exchanger station, which is used in a block of flats. A simulation solution was devel-oped together with 3D visualization and a practical test. Final monitoring system informed the operator about the current state of the heat exchanger station and operator can intervene in time so that heat exchanger station is not suddenly damaged or cause some damage. Such monitoring system will find application in practice, but also in the teaching process, as the preparation of graduates for the modern monitoring systems, which are increasingly used in practice, will be improved. The presented paper is a scientific and methodological publication.

Stakeholder Participation in Educational Performance Monitoring Systems

1991 ◽  
Vol 13 (2) ◽  
pp. 177-188 ◽  
Author(s):  
Gary T. Henry ◽  
Kent C. Dickey ◽  
Janet C. Areson
Keyword(s):  
Monitoring System ◽  
Performance Monitoring ◽  
Stakeholder Participation ◽  
Monitoring Systems ◽  
Educational Performance ◽  
School Superintendents ◽  
School Board Members ◽  
Education Group ◽  
Education Community ◽  
Evaluation Approaches

Performance monitoring systems have typically been “top-down” evaluation approaches. In Virginia, however, a stakeholder approach was used to develop an educational-performance monitoring system. Four stakeholder groups (teachers, school superintendents, school board members, and education group representatives) were identified, and representatives of the groups were involved in developing the system. Stakeholder group representatives viewed their impact on the development of the system positively. Teachers, who might be expected to resist a performance monitoring system, were the most positive about their efficacy in the process and the most committed to the system. The responses of the stakeholders generally indicate that some of the preconditions for utilization of the results were met through the approach of involving stakeholders. However, it is not clear whether the opinions of the representatives will spill over to the rest of the education community.

scholarly journals An IoT and Fog Computing-Based Monitoring System for Cardiovascular Patients with Automatic ECG Classification Using Deep Neural Networks

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7353
Author(s):  
Jaime A. Rincon ◽  
Solanye Guerra-Ojeda ◽  
Carlos Carrascosa ◽  
Vicente Julian
Keyword(s):  
Atrial Fibrillation ◽  
Monitoring System ◽  
Deep Neural Networks ◽  
Low Cost ◽  
Fog Computing ◽  
Monitoring Systems ◽  
Therapeutic Decision ◽  
Cardiovascular Patients ◽  
Therapeutic Decision Making ◽  
High Level

Telemedicine and all types of monitoring systems have proven to be a useful and low-cost tool with a high level of applicability in cardiology. The objective of this work is to present an IoT-based monitoring system for cardiovascular patients. The system sends the ECG signal to a Fog layer service by using the LoRa communication protocol. Also, it includes an AI algorithm based on deep learning for the detection of Atrial Fibrillation and other heart rhythms. The automatic detection of arrhythmias can be complementary to the diagnosis made by the physician, achieving a better clinical vision that improves therapeutic decision making. The performance of the proposed system is evaluated on a dataset of 8.528 short single-lead ECG records using two merge MobileNet networks that classify data with an accuracy of 90% for atrial fibrillation.

scholarly journals Influence of Devolution Monitoring and Evaluation on Service Delivery in Garissa County Government

2019 ◽  
Vol 3 (II) ◽  
pp. 305-318
Author(s):  
Issa Mohamed Hussein ◽  
David Minja
Keyword(s):  
Service Delivery ◽  
Performance Monitoring ◽  
Monitoring And Evaluation ◽  
County Government ◽  
Monitoring Systems ◽  
County Level ◽  
Cost Performance ◽  
Evaluation Systems ◽  
Routine Monitoring ◽  
Evaluation Information

Service delivery in the county government, just as is in the national government, has been termed as not satisfactory. Some of the ways seconded to improve the situation is introduction of monitoring and evaluation. Monitoring and Evaluation system provides the necessary feedback for economic development and policy interventions. However, this area has not received the much-needed attention especially in the county level. In order to accurately and timely track the development progress made in Kenya and the 47 counties in particular, there is need for an efficient M&E system. The absence of this framework limits effective public service delivery thus constraining the acceleration of economic development in Kenya and therefore impacts negatively on the overall welfare of the citizens. To find out the effect of monitoring and evaluation on service delivery in the devolved system, this study is timely so as to make policy recommendations for improvement. This study specifically aimed to establish the effect of performance monitoring on service delivery in a devolved system, to determine the effect of measuring results on service delivery in a devolved system, to find out the effect of reporting and learning on service delivery in a devolved system and to determine the effect of monitoring and evaluation systems on service delivery in a devolved system. The study was guided by the Programme theory of Evaluation, Resource Dependency Theory and the Stakeholder Theory. A descriptive survey research design was adopted for the study. The population of the study was the main committees involved in discussing reports relating to monitoring and evaluation of CIDP preparation and implementation progress at county level. A census was conducted on this population. Data was collected through structured questionnaires of the Likert format. After collection, both descriptive and inferential statistics was established through SPSS software. The study found out that performance monitoring had a positive influence in service delivery at Garissa County Government. Measuring results significantly influenced service delivery at Garissa county government. Reporting and learning had a significant influence on service delivery at Garissa county government. Monitoring and evaluation systems significantly influenced service delivery at Garissa county government. The study concludes that the county government of Garissa performed evaluation of cost performance. The county government evaluated whether projects in the county were of high-quality performance. The county government conducted surveys to establish the durability of projects. The county government established the sustainability of Projects before implementation. Garissa county government established the frequency of reporting monitoring and evaluation information. The county government of Garissa had up to date routine monitoring systems for effective M & E process. The study recommends that the county government of Garissa ought to performed evaluation of cost performance. The county government ought to conduct surveys to establish the durability of projects. The county government ought to establish the sustainability of Projects before implementation. The county government ought to establish flexible feedback mechanisms for monitoring and evaluation results. Garissa county government ought to establish the frequency of reporting monitoring and evaluation information. The county government of Garissa ought to have an up to date routine monitoring systems for effective M & E process. This is an open-access article published and distributed under the terms and conditions of the Creative Commons Attribution 4.0 International License of United States unless otherwise stated. Access, citation and distribution of this article is allowed with full recognition of the authors and the source.

scholarly journals Long-Lifetime Event-Driven Wireless Monitoring System for Pole-Mounted Transformers

2021 ◽  
Vol 11 (16) ◽  
pp. 7313
Author(s):  
Seung Soo Kwak ◽  
Yun Chan Im ◽  
Yong Sin Kim
Keyword(s):  
Monitoring System ◽  
Smart Grids ◽  
Low Cost ◽  
Monitoring Systems ◽  
Sleep Mode ◽  
Battery Lifetime ◽  
Continuous Sampling ◽  
Wireless Monitoring ◽  
Event Driven ◽  
Save Energy

As smart grids develop rapidly, low-cost monitoring systems for pole-mounted transformers increase in demand. Even though battery-powered wireless monitoring systems appear to provide optimal solutions, they consume large amounts of energy for continuous sampling and data transmission. Operation and maintenance costs then increase owing to reduced battery lifetime and battery replacement. To overcome this problem, this paper presents an event-driven battery-powered wireless monitoring system that monitors abnormalities of a transformer and transmits data only if an abnormality occurs. When the proposed event controller detects an abnormality, it enables a root mean square (RMS) converter and a peak detector for sampling and transmitting the maximum RMS value of the abnormal signal and then falls into sleep mode until the next event to save energy. Simulation and experimental results show that the proposed system enhances battery lifetime by up to two orders of magnitude compared to a conventional battery-powered wireless monitoring system.

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