Comment on “Tensiometer Data Acquisition System for Hydrological Studies Requiring High Temporal Resolution”

Abstract. The usage of data from commercial microwave link (CML) networks for scientific purposes is becoming increasingly popular, in particular for rain rate estimation. However, data acquisition and availability is still a crucial problem and limits research possibilities. To overcome this issue, we have developed an open source data acquisition system based on the Simple Network Management Protocol (SNMP). It is able to record transmitted- and received signal levels of a large number of CMLs simultaneously with a temporal resolution of up to one second. We operate this system at Ericsson Germany, acquiring data from 450 CMLs with minutely real time transfer to our data base. Our data acquisition system is not limited to a particular CML hardware model or manufacturer, though. We demonstrate this by running the same system for CMLs of a different manufacturer, operated by an alpine skiing resort in Germany. There, the data acquisition is running simultaneously for four CMLs with a temporal resolution of one second. We present an overview of our system, describe the details of the necessary SNMP requests and show results from its operational application.

Download Full-text

Real-time data acquisition of commercial microwave link networks for hydrometeorological applications

Atmospheric Measurement Techniques ◽

10.5194/amt-9-991-2016 ◽

2016 ◽

Vol 9 (3) ◽

pp. 991-999 ◽

Cited By ~ 28

Author(s):

Christian Chwala ◽

Felix Keis ◽

Harald Kunstmann

Keyword(s):

Data Acquisition ◽

Real Time ◽

Temporal Resolution ◽

Data Acquisition System ◽

Acquisition System ◽

Time Data ◽

Simple Network Management Protocol ◽

Open Source Data ◽

Management Protocol ◽

Microwave Link

Abstract. The usage of data from commercial microwave link (CML) networks for scientific purposes is becoming increasingly popular, in particular for rain rate estimation. However, data acquisition and availability is still a crucial problem and limits research possibilities. To overcome this issue, we have developed an open-source data acquisition system based on the Simple Network Management Protocol (SNMP). It is able to record transmitted and received signal levels of a large number of CMLs simultaneously with a temporal resolution of up to 1 s. We operate this system at Ericsson Germany, acquiring data from 450 CMLs with minutely real-time transfer to our database. Our data acquisition system is not limited to a particular CML hardware model or manufacturer, though. We demonstrate this by running the same system for CMLs of a different manufacturer, operated by an alpine ski resort in Germany. There, the data acquisition is running simultaneously for four CMLs with a temporal resolution of 1 s. We present an overview of our system, describe the details of the necessary SNMP requests and show results from its operational application.

Download Full-text

Multidetector-row Computed Tomography in the Assessment of Coronary Artery Disease – New Techniques and Insights

European Cardiology Review ◽

10.15420/ecr.2010.6.2.43 ◽

2010 ◽

Vol 6 (2) ◽

pp. 43 ◽

Cited By ~ 1

Author(s):

Andreas H Mahnken ◽

Keyword(s):

Computed Tomography ◽

Coronary Artery Disease ◽

Coronary Artery ◽

Data Acquisition ◽

Temporal Resolution ◽

High Temporal Resolution ◽

Multidetector Row ◽

Ct Scanners ◽

Artery Disease ◽

Cardiac Mdct

Over the last decade, cardiac computed tomography (CT) technology has experienced revolutionary changes and gained broad clinical acceptance in the work-up of patients suffering from coronary artery disease (CAD). Since cardiac multidetector-row CT (MDCT) was introduced in 1998, acquisition time, number of detector rows and spatial and temporal resolution have improved tremendously. Current developments in cardiac CT are focusing on low-dose cardiac scanning at ultra-high temporal resolution. Technically, there are two major approaches to achieving these goals: rapid data acquisition using dual-source CT scanners with high temporal resolution or volumetric data acquisition with 256/320-slice CT scanners. While each approach has specific advantages and disadvantages, both technologies foster the extension of cardiac MDCT beyond morphological imaging towards the functional assessment of CAD. This article examines current trends in the development of cardiac MDCT.

Download Full-text