A satellite-based seismic and volcanic monitoring system for Colombia

1994 ◽  
Vol 84 (5) ◽  
pp. 1670-1674
Author(s):  
Goetz G. R. Buchbinder ◽  
Alberto Sarria
Keyword(s):  
Monitoring System ◽  
Volcanic Activity ◽  
Seismic Network ◽  
Continuous Data ◽  
Earthquake Catalogs ◽  
Short Period ◽  
Satellite Links ◽  
Volcanic Monitoring ◽  
Analysis System ◽  
Visual Record

Abstract A satellite-based seismic network with 13 sites has been installed in Colombia. Each site has one vertical short-period seismometer. The purpose of the network is 2-fold and complementary: a number of the sites are on or near active volcanoes in order to give warnings in case of recurring volcanic activity, and all the stations will create the foundation of a national Colombian Seismic Network. The satellite links have room to accommodate a future expansion to 24 sites. All the data are sent continuously to Bogota by satellite, for analysis. To aid in the volcano monitoring, a visual record is produced for each site. In addition, continuous data or optionally triggered events are stored on disks. An associated analysis system determines epicentral parameters for the earthquakes that are occurring in Colombia and then produces earthquake catalogs.

On-Line Monitoring System for Monitoring SO2 in Fumes (1) — Monitoring Subsystem for SO2 Mass Concentration

2011 ◽  
Vol 422 ◽  
pp. 296-299
Author(s):  
Shi Long Wang ◽  
Li Na Wang ◽  
Hong Bo Wang ◽  
Yong Hui Cai
Keyword(s):  
Flow Velocity ◽  
Monitoring System ◽  
Flow Rate ◽  
Mass Concentration ◽  
National Monitoring ◽  
Monitoring Result ◽  
Short Period ◽  
On Line ◽  
Working Principle

In order to achieve the target of controlling SO2 emissions in fumes in a short period of time in China, a SO2 on-line monitoring system (CEMS) has been developed by the authorased on the principle of electrochemistry. This system consists of two subsystems: (1) SO2 mass concentration monitoring and (2) SO2 flow velocity and flow rate monitoring. In the paper, the procedure of system and working principle and method of SO2 mass concentration monitoring subsystem are described in detail (SO2 flow velocity and flow rate monitoring subsystem is described by another paper).Two subsystems work synchronously to monitor and calculate the SO2 emissions, then the on-line monitoring of SO2 emissions is achieved. Through experiment and testing, monitoring result of the system is stable and reliable, which has reached the national monitoring standards and passed the appraisal.

scholarly journals On-Line and Off-Line ECG and Motion Activity Monitoring System for Athletes

2018 ◽  
Vol 3 (66) ◽  
Author(s):  
Stasys Korsakas ◽  
Alfonsas Vainoras ◽  
Liudas Gargasas ◽  
Vytenis Miškinis ◽  
Rimtautas Ruseckas ◽  
...  
Keyword(s):  
Physical Activity ◽  
Monitoring System ◽  
Activity Monitoring ◽  
Activity Level ◽  
Respiration Frequency ◽  
Hardware System ◽  
Motion Activity ◽  
On Line ◽  
Analysis System ◽  
Line Analysis

The aim of this paper is to present a new ECG and motion activity monitoring and on-line analysis system for athle-tes. The developed system is intended to facilitate the coach in optimizing and individualizing the training of elite athletes.The hardware system consists of the device for registration of ECG and accelerometer signals and wireless trans-mission to computer. The coach software works in two modes: on-line version is used during training and off-line version is designed for detailed data analysis after training. The new method for respiration frequency evaluation was developed and checked on 28 persons, and in most cases the developed algorithm correctly evaluated the respiration frequency of the investigated persons. The evaluation of athlete’s functional state from calculated and measured pa-rameters and formation of warning signals (green — normal state, yellow — limitary state and red — premonitory state) is based on the analysis applying Moore and Mealy automata algorithms. The software for the evaluation of the patient’s activity was tested on 11 healthy students: the increase in physical activity level during the brisk walk was 1.4 times higher compared to the level during the slow walk, and during the jogging sessions it was 1.89 times higher than during the slow walk.The results obtained during the investigations show that the developed ECG and motion activity monitoring system with two packages of software allows to measure cardio respiratory changes and changes in intensities of physical activity under daily conditions. The comprehensive off-line analysis by monitoring data provides the possibility for coaches to make more detailed analysis of cardio respiratory changes and changes in intensities during training.Keywords: monitoring system for athletes, electrocardiogram, accelerometry, respiration frequency.

scholarly journals A MONITORING SYSTEM OF AGRICULTURAL EQUIPMENT FIELD POSITION BASED ON GPS AND GIS

2020 ◽  
pp. 229-238
Author(s):  
Zhenyu Yang ◽  
Zeqiu Chen ◽  
Ken Chen
Keyword(s):  
System Design ◽  
Monitoring System ◽  
Functional Module ◽  
Research Direction ◽  
Mobile Gis ◽  
Graphic Data ◽  
Design Function ◽  
Analysis System ◽  
Map Data ◽  
Management Functions

With the development of communication technology and embedded technology, mobile intelligent terminals (mobile GIS) have become the key research direction of monitoring systems. In view of this, the study first constructed the structure frame of the agricultural monitoring system and the system mobile database, and designed the monitoring system terminal, combined with the .Net Compact Framework platform to implement the system functions, and finally the monitoring system based on GPS and GIS. The function of the system was tested. The results show that the system design of this study combines user needs’ analysis, system framework and functional module division. The system design function realizes the function of creating a database, the entry and collection of attribute data and graphic data; and the editing and browsing of map data and management functions; it realizes the processing of data and the output of results, and displays in the form of graphs or reports; it realizes the functional modules of the monitoring system. It is hoped that this research can provide a certain reference and reference for the application of mobile intelligent terminals in our country's agriculture.

The Modern Swedish National Seismic Network: Two Decades of Intraplate Microseismic Observation

2021 ◽  
Author(s):  
Björn Lund ◽  
Peter Schmidt ◽  
Zaher Hossein Shomali ◽  
Michael Roth
Keyword(s):  
Crisis Management ◽  
Automatic Detection ◽  
Seismic Network ◽  
Assessment System ◽  
Continuous Data ◽  
Seismic Events ◽  
Primary System ◽  
Individual Choice ◽  
Active Structures ◽  
Event Definition

Abstract The Swedish National Seismic Network (SNSN) was modernized and rapidly expanded during the period 1998–2012. The network currently operates 68 permanent seismic stations, all with broadband instruments supplying real-time continuous data at 100 samples per second. Continuous data from 10 stations are shared with the international community via Orfeus, and approximately 10 stations of their individual choice are shared with institutes in neighboring countries (Denmark, Finland, Norway, and Germany). The SNSN uses the South Iceland Lowland (SIL) system as the primary system for automatic detection and event definition. In addition, an in-house system based on migration and stacking is used for automatic detection of small events, and implementations of SeisComP (SC) and Earthworm are used primarily for rapid detection of larger regional events. Global monitoring is performed with SC, using approximately 250 global stations, and we operate a continuous rapid risk assessment system serving Swedish crisis management authorities. Since the start of automatic processing in August 2000, the SNSN has recorded and interactively analyzed more than 171,000 seismic events, of which 10,700 were earthquakes with local magnitudes ranging from around −1 to 4.3. The microearthquake activity detected in the last 20 yr has significantly improved the identification and understanding of seismically active structures in Sweden.

scholarly journals Intelligent Wide-Area Water Quality Monitoring and Analysis System Exploiting Unmanned Surface Vehicles and Ensemble Learning

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 681 ◽  
Author(s):  
Huiru Cao ◽  
Zhongwei Guo ◽  
Shian Wang ◽  
Haixiu Cheng ◽  
Choujun Zhan
Keyword(s):  
Water Quality ◽  
Monitoring System ◽  
Ensemble Learning ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Wide Area ◽  
Quality Analysis ◽  
Water Quality Analysis ◽  
Analysis Algorithm ◽  
Analysis System

Water environment pollution is an acute problem, especially in developing countries, so water quality monitoring is crucial for water protection. This paper presents an intelligent three-dimensional wide-area water quality monitoring and online analysis system. The proposed system is composed of an automatic cruise intelligent unmanned surface vehicle (USV), a water quality monitoring system (WQMS), and a water quality analysis algorithm. An automatic positioning cruising system is constructed for the USV. The WQMS consists of a series of low-power water quality detecting sensors and a lifting device that can collect the water quality monitoring data at different water depths. These data are analyzed by the proposed water quality analysis algorithm based on the ensemble learning method to estimate the water quality level. Then, a real experiment is conducted in a lake to verify the feasibility of the proposed design. The experimental results obtained in real application demonstrate good performance and feasibility of the proposed monitoring system.

scholarly journals Implementasi Sistem Perparkiran Otomatis dengan Menentukan Posisi Parkir Berbasis RFId

2018 ◽  
Vol 4 (1) ◽  
pp. 31
Author(s):  
FREEON ALKAPON IMBIRI ◽  
NANDANG TARYANA ◽  
DECY NATALIANA
Keyword(s):  
Monitoring System ◽  
Retrieval System ◽  
Data Retrieval ◽  
Continuous Data ◽  
Parking Space ◽  
C Language ◽  
Lack Of Information ◽  
Parking Lot ◽  
Big City ◽  
Long Time

ABSTRAKApartemen merupakan salah satu tempat tinggal yang ideal di kota metropolitan yang menyediakan banyak fasilitas bagi penghuninya. Salah satu fasilitas tersebut adalah tersedianya area parkir yang memadai dan nyaman bagi penghuni yang memiliki kendaraan, pada kenyataannya saat ini sistem perparkiran yang digunakan masih bermasalah. Masalah yang ditimbulkan dalam sistem perparkiran adalah kurangnya informasi mengenai lahan parkir yang kosong serta penempatan kendaraan yang tidak sesuai sehingga sering kali pemilik kendaraan membutuhkan waktu yang lama untuk sekedar menemukan tempat parkir yang kosong. Berdasarkan hal itu diperlukan sebuah sistem monitoring parkir yang memudahkan pengendara kendaraan yang hendak parkir. Tujuan penelitian ini adalah merancang dan merealisasikan model sistem monitoring perparkiran dengan fasilitas pemilihan area parkir menggunakan Teknologi RFId. Perangkat lunak yang digunakan pada sistem ini dirancang dengan menggunakan bahasa C#. Pada sistem ini proses pengambilan data secara kontinyu menggunakan mikrokontroler Atmega16 sebagai komponen kendali utamanya. Pengujian dilakukan secara simulasi pada miniatur perparkiran. Hasil pengujian model sistem perparkiran dapat menampilkan kondisi dari masing-masing area parkir yang ditampilkan pada display. Sistem pengambilan data secara kontinyu menggunakan kartu RFId sistem ini dapat menggantikan operator. Sensor cahaya (LED dan LDR) akan berlogika 1 jika ada mobil yang lewat. Kata kunci: Parkir, RFId, LED, LDR, Mikrokontroler, Atmega16, Microsoft Acess, C#. ABSTRACT Apartment is an ideal place of living in a big city ,it provides a lot of facilities .One of apartment facilities is a parking lot that are adequate and comfortable for its occupants who have vehicles . Problems caused in the parking system is the lack of information regarding the parking lot is empty and the placement of the vehicle that is not in accordance with the wishes so that often the owner of the vehicle takes a long time to just find an empty parking space. Based on that required a monitoring system parking facilitate motorists want to park. The purpose of this study was to design and to make a realization of parking monitoring system where could be choosen the parking lot with RFId Technology.The software used in the system is designed using the C # language. In this system, the process to taking the data with microcontroller Atmega 16 as a main controller. The trial for this system done with simulation in a miniatur parking area. The result of the trial is the system can display about status of parking area. Continuous data retrieval system using RFID cards, and the system can replace the operator. The light sensor (LED AND LDR) to logic 1 if no passing cars.Keywords: Parking, RFId, LED, LDR, Microcontroler, Atmega16, Microsoft Acess, C#

scholarly journals Tracking and Monitoring System Based on LoRa Technology for Lightweight Boats

Electronics ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 15 ◽  
Author(s):  
Ramon Sanchez-Iborra ◽  
Ignacio G. Liaño ◽  
Christian Simoes ◽  
Elena Couñago ◽  
Antonio Skarmeta
Keyword(s):  
Power Consumption ◽  
Monitoring System ◽  
Long Range ◽  
Area Network ◽  
Wide Area Network ◽  
Comprehensive Overview ◽  
Communication Paradigm ◽  
Satellite Links ◽  
High Power Consumption ◽  
Limited Power

Maritime communications are really challenging due to the adverse transmission conditions and the lack of a pre-provided infrastructure for supporting long range connectivity with land. Communications in high seas are usually covered by satellite links that are expensive and lead to high power consumption by the terminals. However, in areas closer to the shore, other communication options have been adopted for different kinds of services such as boat tracking and telemetry, data collection from moored monitoring systems, etc. In these scenarios, technologies such as cellular communications or wireless sensor networks have been employed so far; nevertheless, all of them present different drawbacks mostly related with the coverage and energy-efficiency of the system. Recently, a novel communication paradigm, so-called Low Power-Wide Area Network (LP-WAN) has gained momentum due to its interesting characteristics regarding transmission distances and end-node’s power consumption. The latter may be of great interest for ships with energetic restrictions such as small sailboats, recreational boats, or radio control ships. For that reason, in this work, we present a boat tracking and monitoring system based on LoRa (Long Range), one of the most prominent LP-WAN technologies. We provide a comprehensive overview of this communication solution as well as a discussion addressing its benefits when applied to maritime scenarios. We present the results extracted from a case of study, where real-training sessions of Optimist Class sailboats have been monitored by means of the presented architecture, obtaining good levels of coverage and link-reliability with limited power consumption. A transmission range study is also presented, demonstrating the validity of this proposal for monitoring activities inside the port or maneuvers close to the shore.

Goals and Development of the Alaska Volcano Observatory Seismic Network and Application to Forecasting and Detecting Volcanic Eruptions

2020 ◽  
Vol 91 (2A) ◽  
pp. 647-659 ◽  
Author(s):  
John A. Power ◽  
Mathew M. Haney ◽  
Stephen M. Botnick ◽  
James P. Dixon ◽  
David Fee ◽  
...  
Keyword(s):  
Analytical Techniques ◽  
Volcanic Eruptions ◽  
Seismic Network ◽  
High Rate ◽  
Volcano Observatory ◽  
Short Period ◽  
Volcanic Seismicity ◽  
Volcanic Processes ◽  
Aleutian Arc ◽  
Monitoring Effort

Abstract The Alaska Volcano Observatory (AVO) seismic network has been in operation since 1988 and during this time has grown from 29 to 217 seismic stations providing real-time monitoring of 32 active volcanoes in Alaska, as well as useful data for regional earthquake monitoring. Since 1988, AVO has detected 59 volcanic eruptions at Aleutian arc volcanoes, and 31 of these have been captured by local seismic instrumentation. As part of this monitoring effort, AVO has cataloged more than 120,000 earthquake hypocenters and magnitudes associated with volcanic processes throughout the arc. This high rate of volcanic activity provides an excellent opportunity to study seismicity associated with magmatic and eruptive processes and develop and refine analytical techniques to track volcanic seismicity and warn of hazardous eruptions. The network is currently undergoing an extensive upgrade, replacing aging short-period analog seismometers with digital broadband instruments. These are expected to improve AVO’s seismic capability and further facilitate other geophysical instrumentation such as continuous Global Positioning System receivers, infrasound sensors, and web cams.

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