Media Release

New ultra-low latency data transmission protocol for Earthquake Early Warning (EEW) unveiled at AGU Fall Meeting, San Francisco. GDI can transmit data 25 times faster than standard EEW protocols.

Güralp Systems Ltd, the leading global provider of seismic monitoring instrumentation and solutions, unveiled a new, free-licence, data transmission protocol that dramatically reduces the time it takes seismic instrumentation to inform Earthquake Early Warning (EEW) systems that an earthquake has occurred.

Güralp has devised a packetized data transmission protocol called Güralp Data Interchange, (GDI) that allows seismic waveforms to be transmitted sample by sample, as they are acquired by the instrumentation. To further improve speed, GDI adapts the size of the data packets it sends to suit the bandwidth available in the network. This means that transmission time is absolutely minimised for the EEW network and data can be received in as little as 30 ms.

Data protocols currently used are also packetized systems, however they require the packet to be filled to a specific size before the packet can be transmitted – and it’s this that introduces delays into the transmission process. Delays can extend to one second or more.

Working in collaboration with gempa, GDI has been incorporated into a plug-in for gempa’s SeisComPro software and is now available to existing SeisComPro customers via the CAPS plugin. For EEW networks not using SeisComPro, GDI is available as a free-license, source code download for integration into existing networks.

Dr. Chris Potts, Güralp Executive Chairman sets out the reasoning for making GDI free to use:

“As soon as we realised GDI’s potential we made the decision to make it a free-licence product. After all, we are foremost, an instrument manufacturer and not a software developer. By providing access to all interested parties, we can ensure that the global community will benefit from GDI and we hope that, by doing this, the EEW community will also contribute to its evolution, for everyone’s benefit.”

On incorporating GDI into SeisComPro, Bernd Weber, CEO, gempa GmbH explains

“GDI is one of the few acquisition modules fulfilling the requirements of EEW. With the integration into SeisComPro a modern sophisticated turnkey solution can be provided to the EEW community.”

The greatest benefit of GDI is when it is combined with low latency digitisation, such as the causal filtering in the Güralp Minimus digitiser (see Minimus brochure for more information). In this example, both digitisation and transmission can be achieved in ~40 ms, significantly less than the typical data delivery time of 1 s using other protocols.

For more information on GDI and how to download the source-code, view the GDI datasheet.

About EEW systems:

EEW systems notify users in a local or regional network when an earthquake event occurs, usually with an indication of the expected severity of the earthquake and an approximate arrival time. Generally the alert will be issued in the manner of a few, to tens, of seconds before the earthquake reaches the users. Although short, this warning time allows for automated systems to shut down services such as elevators, gas supplies and even transport networks. In addition it allows time for people to take steps to protect themselves under tables or in doorways.

The EEW community seek to maximise the warning time so that more sophisticated safety measures can be implemented. For instrument manufacturers, there are two stages where instrument design can contribute to reducing these delays - firstly the processing time required to analyse the seismic data as it arrives (this is necessary to assess the earthquake severity and location) and secondly, the time it takes for the seismic data to be transmitted to the alert system (this is often constrained by the telecommunications network being used).

ENDS

MEDIA ENQUIRIES TO:

pressenquiries@guralp.com

For urgent enquiries please call 020 3727 1000 and speak to Fergus Wheeler, Louisa Feltes or Jess Gill. 



 
 

 

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NOTES:

Güralp Systems Ltd.(www.guralp.com) is a leading global provider of sophisticated seismic monitoring solutions used to understand natural seismological events such as earthquakes, aftershocks and volcanos, as well as induced seismic events, or seismic signals, resulting from human activity.

Our solutions are used in research, civil and industrial applications to increase understanding, optimise processes and to protect people and the environment. Our equipment is installed in all major ocean basins and across all continents worldwide.

Our instruments range in performance from very low frequency, very low noise for global seismology to high dynamic range instruments for local, strong motion monitoring. Our sensors and can be supplied for deployment at the surface, in boreholes and on the ocean bottom. We also provide data acquisition equipment, power and communication accessories and data interpretation software.

Our services include installation and commissioning; network operation; repair and maintenance services; data processing and interpretation.

Headquartered in Reading, in the UK, we have been operating for more than 30 years and have established a global network of distributors who provide local customer support and sales services.

gempa GmbH (www.gempa.de) offers a wide range of services and products to monitor, process and analyze elemental activity.

We focus on products around the real-time processing system SeisComP3 which has been developed within the GITEWS (German Indonesian Tsunami Early Warning System) project by GFZ German Research Centre for Geosciences initially. We continue the development and maintenance of SeisComP3.

Primarily developed for seismology (earthquake monitoring) we extended the framework SeisComP3 to monitor, process and analyze data from for instance buoys and tide gauges for Tsunami Early Warning Systems.

At the center of our attention stand workable and easy to use solutions for your individual challenges.

We are collaborating with international institutions and companies, we work with interesting people all over the world. In a nutshell: we love what we are doing!

 

 

Media Release

Güralp, the leading global provider of force feedback seismic equipment is launching a new low-power, portable digitiser that allows users access to data and instrument controls via Cloud technology.

The Güralp Minimus is a small, portable, 24 bit, four channel digitiser packed with a host of features that make it the ideal plug and play solution for rapid deployments.

Offering multidisciplinary functionality, the Minimus can simultaneously accommodate an analogue seismic sensor; an infrasound input for capture of airborne shock; a digital Radian posthole or borehole feed; and its own internal MEMS accelerometer.

Integrated Ethernet connectivity allows the Minimus to be controlled remotely using Güralp’s new Discovery software platform (free to download) or via a standard web browser. The benefit of Discovery is that it allows the user to identify the instrument IP address via a Cloud registry server without the need for static IP address arrangements. Discovery also allows for simpler instrument and data management with access to hardware State-of-Health (SoH), data streaming; GPS location; response and calibration parameters. Users can select sample rates of up to 5000 samples per second with the option to simultaneously stream multiple sample rates in addition to the recording rate.

Reliable deployments
For added confidence in the field, Güralp Vü, a Bluetooth App, displays waveforms, orientation, temperature and humidity data, for instant checking of installation integrity. Data storage is hot swappable for uninterrupted data retrieval with dual redundant microSD cards to ensure data integrity.

Phil Hill, Technical Director

“The Minimus is our new generation of digitiser, it may be small, but we have packed it with the latest high-tech hardware. As well as increased speed and reliability of digitisation, the modern communication interfaces have created a step change to the user experience.

We really wanted to design a digitiser that would be suited to the Earthquake Early Warning (EEW) community. Minimus can run low latency causal filters simultaneously with traditional acausal filters and this, combined with its high processing speed and communication capability makes it ideal for EEW systems. ”

You can read more in the Minimus brochure.

Güralp is exhibiting the Minimus on stand 5 (second floor) at the Japan Geoscience Union Annual Meeting Chiba-city, Japan (22 -26 May). Clare Sweeney, Stuart Allardice and our Japanese distributors, Kyokuto Boeki Kaisha, Ltd will be on hand to show you how it works and answer any questions you have.

ENDS

Minimus trio

 

 

MEDIA ENQUIRIES TO:

EMMA SEYMOUR

MARKETING MANAGER

T: +44 (0)1189 819056      Ext: 306

M: +44 (0)7769 350343

E: eseymour@guralp.com

 

IMAGES:

  • Guralp Minimus and Discovery software icon

NOTES:

Güralp Systems Ltd. (www.guralp.com) is a leading global provider of sophisticated seismic monitoring solutions used to understand natural seismological events such as earthquakes, aftershocks and volcanos, as well as induced seismic events, or seismic signals, resulting from human activity.

Our solutions are used in research, civil and industrial applications to increase understanding, optimise processes and to protect people and the environment. Our equipment is installed in all major ocean basins and across all continents worldwide.

Our instruments range in performance from very low frequency, very low noise for global seismology to high dynamic range instruments for local, strong motion monitoring. Our sensors and can be supplied for deployment at the surface, in boreholes and on the ocean bottom. We also provide data acquisition equipment, power and communication accessories and data interpretation software.

Our services include installation and commissioning; network operation; repair and maintenance services; data processing and interpretation.

Headquartered in Reading, in the UK, we have been operating for more than 30 years and have established a global network of distributors who provide local customer support and sales services.

 

 

Address

 

Guralp Systems Limited
Midas House
Calleva Park
Aldermaston
Reading
RG7 8EA, UK

Tel: +44 118 981 9056
Fax: +44 118 981 9943
E-Mail: sales@guralp.com

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