J
Juan Crespo
Guest
Dear Sirs:
My name is Juan Crespo and I write you from Spain. I am developing a data
logger applicaction by using the WebDAQ data logger by CEC (www.cec488.com)
and I have a problem that I hope you can help with.
My purpose is to develop a device that could be put in a line carrier and is
taking data from the production process accross the production line. I have
built a box in which WebDAQ, with another signal adaptation modules referred
to the sensor, is put. Then, all the set is connected to a standard computer
UPS, and installed in a carrier that moves along the production line. After
the trip has been made, the module containing WebDAQ is disconnected from
UPS and carried to the office, where it is connected both to the standard
power supply and Ethernet, downloading the data.
The problem comes with power supply. I am using a standard 1000 VA computer
UPS and there is no problem with autonomy time, but the store memory of
WEbDAQ is PC RAM based and volatile, so when I want to disconnect the system
in order to carry it to the office I loose all the data it has captured.
The question is: How could I solve my problem?. If any of you have worked
with WebDAQ, I know you can think in solutions involving remote downloading
of data. But the system goes accross a very agresive EM environment,
including robotic welding, big motors, large distances and a big amount of
data that makes very difficult wireless transmition at an affordable cost.
I have thought in a "dramatic" solution by changing the data logger device
from WebDAQ to another device.
But, before changing totally my project design I would like to ask you for
some advice. Have you faced in any time a problem like this? Do you know any
method that allows to convert the WebDAQ volatile memory in non-volatile
memory, so i could disconnect the whole system at the end of every test and
take it with me to the office in order to connect it to a PC.
I hope that any of you could give me any type of help.
If you need additional explanation or some other info,pease dont hesitate in
email me or write your questions as answer of this post.
Thank you very much, and please sorry for my bad english.
Yours sincerely
Juan Crespo
jlcrespo@rocketmail.com
My name is Juan Crespo and I write you from Spain. I am developing a data
logger applicaction by using the WebDAQ data logger by CEC (www.cec488.com)
and I have a problem that I hope you can help with.
My purpose is to develop a device that could be put in a line carrier and is
taking data from the production process accross the production line. I have
built a box in which WebDAQ, with another signal adaptation modules referred
to the sensor, is put. Then, all the set is connected to a standard computer
UPS, and installed in a carrier that moves along the production line. After
the trip has been made, the module containing WebDAQ is disconnected from
UPS and carried to the office, where it is connected both to the standard
power supply and Ethernet, downloading the data.
The problem comes with power supply. I am using a standard 1000 VA computer
UPS and there is no problem with autonomy time, but the store memory of
WEbDAQ is PC RAM based and volatile, so when I want to disconnect the system
in order to carry it to the office I loose all the data it has captured.
The question is: How could I solve my problem?. If any of you have worked
with WebDAQ, I know you can think in solutions involving remote downloading
of data. But the system goes accross a very agresive EM environment,
including robotic welding, big motors, large distances and a big amount of
data that makes very difficult wireless transmition at an affordable cost.
I have thought in a "dramatic" solution by changing the data logger device
from WebDAQ to another device.
But, before changing totally my project design I would like to ask you for
some advice. Have you faced in any time a problem like this? Do you know any
method that allows to convert the WebDAQ volatile memory in non-volatile
memory, so i could disconnect the whole system at the end of every test and
take it with me to the office in order to connect it to a PC.
I hope that any of you could give me any type of help.
If you need additional explanation or some other info,pease dont hesitate in
email me or write your questions as answer of this post.
Thank you very much, and please sorry for my bad english.
Yours sincerely
Juan Crespo
jlcrespo@rocketmail.com