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MEPROS

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Subido el 26 de julio de 2007 por EducaMadrid

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MEPROS - EU (Research)

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The measurement of wind turbulence and wind profiling systems are important both for energy 00:00:00
production and for air safety. We've never travelled so much for business or for pleasure 00:00:10
before. Flying more aeroplanes inevitably increases the risk that they'll encounter 00:00:15
some turbulence. At the same time, we have to ensure that they remain the safest means 00:00:20
of transportation. Thanks to a consortium of small and medium enterprises and academic 00:00:25
research partners, a software programme has been developed that can identify and eliminate 00:00:30
underlying noise peaks in the electronic signals of wind profiles. 00:00:34
When the plane encounters turbulence, its position is shifted. According to the level 00:00:42
of turbulence, the movement is amplified. Sometimes the movement becomes very violent 00:00:48
in the horizontal axis and in the vertical axis. This clearly influences the passenger's 00:00:53
comfort level and can also constitute a certain risk. 00:00:58
In order to measure the air movements in sensitive areas such as airports, we use radar wind 00:01:11
profilers. German SME Syntec built this radar on the site of the Frankfurt airport for 00:01:15
Deutsche Flugsicherung. 00:01:21
This is the core of our installation. We're in a radar wind profiler that measures wind 00:01:28
and air temperature. It's equipped with an acoustic sonic radio system. What you see 00:01:32
here is the antenna whose total area is 25 square metres. The entire installation is 00:01:37
200 square metres. The radar is combined with a very powerful sound system that consists 00:01:42
of thousands of transmitters. The sound produced is reflected against the air at various altitudes 00:01:51
which detects air waves. The radar can then produce an image of these air movements along 00:01:57
a column of around one and a half kilometres high. 00:02:02
It's positive here below 700 metres and then it changes sign and wind speeds are on the 00:02:06
order of five to seven metres per second. 00:02:14
Previously when aeroplanes or birds overflew the radar, the measurement was not recorded 00:02:18
accurately. 00:02:23
So this is a plane? 00:02:24
This is the radar echo of a plane, yeah. So here's a very nice example. It shows various 00:02:28
features. Here this is a measurement as it should be and as we expected. Here you see 00:02:34
something off the wind trace. This could be a bird, which is not really a problem. But 00:02:41
here in the fourth column you see a very strong signal and this is certainly belonging to 00:02:47
an aircraft and we are entirely missing wind information here between 600 and 900 metres. 00:02:52
And here again European SMEs gave us the solution to this problem of air safety. 00:03:00
European Project MEPROS is a cooperation research project between seven SMEs, SHE Informations 00:03:05
Technologie, Sintec and METEC in Germany, Bristol Industrial and Research Associates 00:03:11
and University of Salford Enterprises in the UK, Eula Electronica EICAS in Italy and the 00:03:16
Espace Aérien Développement in France. 00:03:22
These small and medium enterprises collaborated with the Fachhochschule in Worms and the Bremen 00:03:28
University in Germany and with Aveiro University in Portugal. 00:03:33
The EU contributed 511,700 Euros of the total MEPROS budget, which is 1,049,000 Euros. 00:03:40
CETEM, the Bremen University's Zentrum für Techno-Mathematik, designed the mathematical 00:03:49
instrument that made it possible, as it were, to make the plane's radar signatures disappear 00:03:57
so that we can only measure wind turbulence. 00:04:02
When an aeroplane overflies the antenna it reflects radar waves and when you measure 00:04:07
these waves the result can give some erroneous interpretations on the speed of the wind. 00:04:14
I'll demonstrate this. 00:04:22
What you've just heard is the radio signal which I transformed into sound and this is 00:04:27
the echo of an aeroplane. 00:04:34
We call this a chirp in English. 00:04:37
We'll make this interference disappear. 00:04:40
This is the same signal but treated with the MEPROS tool. 00:04:48
You can hear that the chirp has completely disappeared. 00:04:55
This formula was designed through a collaboration between the Bremen University in Germany and 00:05:00
the Aveiro University in Portugal. 00:05:04
The participation of the Aveiro University consisted in optimising the algorithms for 00:05:10
the project. 00:05:14
We received data and the necessary information to work on these algorithms which we refined 00:05:17
according to the parameters requested by the University of Bremen. 00:05:21
And it works, aeroplane or not. 00:05:28
It was essential that we met with companies in Rome, Lille in France and Ludwigshafen 00:05:37
in Germany and Bristol in England to determine the details since the parameters had to be 00:05:42
optimised to improve the quality of the product. 00:05:48
The final product needed to adapt for multifunctional exploitation of potential markets. 00:05:54
Some companies will resell the software, others will use it under a different form. 00:06:04
This will allow them to increase the performance of the measuring equipment, especially for 00:06:10
data quality. 00:06:14
In terms of application, we have the air transport market where we'll obtain more specific data 00:06:15
that will allow us to economise on fuel. 00:06:21
Another application is the implementation of wind-generated parks which tend to be planned 00:06:24
haphazardly. 00:06:29
In future, this new software will allow them to be more effectively positioned. 00:06:30
This will allow a higher return on investment. 00:06:35
You see, we finally managed to transform our project into a real success story for 00:06:38
all the partners involved. 00:06:42
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Idioma/s:
en
Niveles educativos:
▼ Mostrar / ocultar niveles
      • Nivel Intermedio
Autor/es:
The European Union
Subido por:
EducaMadrid
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
630
Fecha:
26 de julio de 2007 - 11:15
Visibilidad:
Público
Enlace Relacionado:
European Commission
Duración:
06′ 52″
Relación de aspecto:
4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
Resolución:
448x336 píxeles
Tamaño:
34.85 MBytes

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