scholarly journals Tsunami Early Warning System based on Real-time Measurements of Hydro-acoustic Waves

2014 ◽  
Vol 70 ◽  
pp. 311-320 ◽  
Author(s):  
C. Cecioni ◽  
G. Bellotti ◽  
A. Romano ◽  
A. Abdolali ◽  
P. Sammarco ◽  
...  
Keyword(s):  
Real Time ◽  
Early Warning ◽  
Acoustic Waves ◽  
Early Warning System ◽  
Warning System ◽  
Tsunami Early Warning

scholarly journals Near real-time GPS applications for tsunami early warning systems

2010 ◽  
Vol 10 (2) ◽  
pp. 181-189 ◽  
Author(s):  
C. Falck ◽  
M. Ramatschi ◽  
C. Subarya ◽  
M. Bartsch ◽  
A. Merx ◽  
...  
Keyword(s):  
Real Time ◽  
Early Warning ◽  
Early Warning System ◽  
Tide Gauge ◽  
Warning System ◽  
Early Warning Systems ◽  
Time Data ◽  
Essential Information ◽  
Tsunami Early Warning ◽  
Land Mass

Abstract. GPS (Global Positioning System) technology is widely used for positioning applications. Many of them have high requirements with respect to precision, reliability or fast product delivery, but usually not all at the same time as it is the case for early warning applications. The tasks for the GPS-based components within the GITEWS project (German Indonesian Tsunami Early Warning System, Rudloff et al., 2009) are to support the determination of sea levels (measured onshore and offshore) and to detect co-seismic land mass displacements with the lowest possible latency (design goal: first reliable results after 5 min). The completed system was designed to fulfil these tasks in near real-time, rather than for scientific research requirements. The obtained data products (movements of GPS antennas) are supporting the warning process in different ways. The measurements from GPS instruments on buoys allow the earliest possible detection or confirmation of tsunami waves on the ocean. Onshore GPS measurements are made collocated with tide gauges or seismological stations and give information about co-seismic land mass movements as recorded, e.g., during the great Sumatra-Andaman earthquake of 2004 (Subarya et al., 2006). This information is important to separate tsunami-caused sea height movements from apparent sea height changes at tide gauge locations (sensor station movement) and also as additional information about earthquakes' mechanisms, as this is an essential information to predict a tsunami (Sobolev et al., 2007). This article gives an end-to-end overview of the GITEWS GPS-component system, from the GPS sensors (GPS receiver with GPS antenna and auxiliary systems, either onshore or offshore) to the early warning centre displays. We describe how the GPS sensors have been installed, how they are operated and the methods used to collect, transfer and process the GPS data in near real-time. This includes the sensor system design, the communication system layout with real-time data streaming, the data processing strategy and the final products of the GPS-based early warning system components.

scholarly journals Kajian Kerentanan Fasilitas Darat Ina-CBT terhadap Guncangan Gempabumi

2020 ◽  
Vol 4 (1) ◽  
pp. 28-40
Author(s):  
Mulyo Harris Pradono
Keyword(s):  
Real Time ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Tsunami Early Warning

Ina-CBT adalah Indonesia Cable-Based Tsunamimeter (atau Tsunameter). Ina-CBT adalah bagian dari Ina-TEWS (Indonesia Tsunami Early Warning System) yang merupakan sistem peringatan dini tsunami di Indonesia yang bertujuan memberikan peringatan dini tsunami saat kejadian berlangsung. Cable-Based Tsunamimeter ini terdiri dari sensor bawah laut yang mengukur getaran gempa dan tekanan air. Data getaran dan tekanan kemudian diteruskan melalui kabel bawah laut sampai ke daratan. Fasilitas di daratan menjadi sangat penting karena secara real time mengirim data melalui radio ke pusat pemantauan. Fasilitas daratan terdiri dari Beach Man Hole (BMH), Menara, dan Rumah Listrik. Semua fasilitas ini harus tetap bekerja walaupun guncangan gempa besar terjadi yang mengawali terjadinya tsunami. Fasilitas ini juga harus dibuat aman terhadap terjangan tsunami. Di dalam makalah ini, kerentanan fasilitas tersebut dikaji terhadap guncangan gempa sesuai dengan standar yang berlaku.

Development of On-Line Diagnostics and Real Time Early Warning System for Vehicles

2005 ◽  
Author(s):  
Chin Lin ◽  
Chih-chi Li ◽  
Sung-huan Yang ◽  
Shun-hua Lin ◽  
Chun-yi Lin
Keyword(s):  
Real Time ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
On Line

A Reliability-Based Early Warning System for Real-Time Monitoring on RC Buildings

2012 ◽  
Vol 446-449 ◽  
pp. 3422-3427
Author(s):  
Wang Sheng Liu ◽  
Ming Zhao
Keyword(s):  
Probability Distribution ◽  
Real Time ◽  
Early Warning ◽  
Early Warning System ◽  
Limit State ◽  
Warning System ◽  
State Function ◽  
Real Time Monitoring ◽  
Rc Buildings ◽  
Load Effect

Today there is an urgent need for effective monitoring whether for old buildings or new ones. While conventional early warning system for real-time monitoring is based on safety factor, this paper proposes a new reliability-based framework to monitor the safety of RC buildings probabilistically. The framework includes modeling resistance, predicting probability distribution of load effect, calculating reliability and setting reliability index threshold. The in-situ test data enables to update the resistance model through a Bayesian process. Meanwhile, the observed monitoring data predicts the probability distribution of load effect. FORM is used to calculate the reliability because the limit state function for real-time monitoring is linear and simple. This study shows that the reliability-based early warning system is of more scientific sense in quantifying the safety and may be applied to many engineering fields.

scholarly journals Design of Early Warning System Based on Wireless Sensor Network

2018 ◽  
Vol 14 (01) ◽  
pp. 66
Author(s):  
Gan Bo ◽  
Jin Shan
Keyword(s):  
Data Acquisition ◽  
Real Time ◽  
Monitoring System ◽  
Early Warning ◽  
Early Warning System ◽  
Warning System ◽  
Sensor Data ◽  
Landslide Monitoring ◽  
Remote Transmission ◽  
Sensor Data Acquisition

In order to solve the shortcomings of the landslide monitoring technology method, a set of landslides monitoring and early warning system is designed. It can achieve real-time sensor data acquisition, remote transmission and query display. In addition, aiming at the harsh environment of landslide monitoring and the performance requirements of the monitoring system, an improved minimum hop routing protocol is proposed. It can reduce network energy consumption, enhance network robustness, and improve node layout and networking flexibility. In order to realize the remote transmission of data, GPRS wireless communication is used to transmit monitoring data. Combined with remote monitoring center, real-time data display, query, preservation and landslide warning and prediction are realized. The results show that the sensor data acquisition system is accurate, the system is stable, and the node network is flexible. Therefore, the monitoring system has a good use value.

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