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Mark Weber

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02 Nov 2009 xml_io_tools Read XML files into MATLAB struct and writes MATLAB data types to XML Author: Jaroslaw Tuszynski

Hi,

I am using your tool very often and I want to thank you for that.

This week I found a little problem and do not knwo how to solve. First of all my xml file:
<measurement>
<values>
<value>
<rssi>-90</rssi>
<identifier>
<name>00-11-88-87-F4-82</name>
</identifier>
</value>
</values>
</measurement>
<measurement>
<values>
<value>
<rssi>-81</rssi>
<identifier>
<name>00-11-88-88-42-40</name>
</identifier>
</value>
</values>
</measurement>

Reading the first part is working, so I get a string called '00-11-88-87-F4-82' with the RSSI value. WIth the second part there is a problem. Because there are only numbers in the string, xmlread does not interpret it as a string. It calcluates the the value of -269. But I need it as String because it is not a number.
How can I solve the problem? Changing the name is not possible because it is given by the application where the xml is coming from.

Thank you in advance.

Kind regards

Mark Weber

05 May 2009 WiFi RSSI with NDIS protocole List Wifi devices and retrieve RSSI values of the signal Author: Sebastien PARIS

Hello,

thank you for your help. I compiled it with a new Matlab and it is working fine now. But one problem again: How can I see which AP (Mac-Address) has which RSSI values? At the moment I only get RSSI values as I specified but I do not knwo from which AP? Is it possible to get something like this:
MAC1: RSSI1, RSSI2, RSSI3,...
MAC2: RSSI1, RSSI2, RSSI3,...

Thank you for you help in advance again.
BR Mark

04 May 2009 WiFi RSSI with NDIS protocole List Wifi devices and retrieve RSSI values of the signal Author: Sebastien PARIS

Hello Mr. Paris,

very nice idea your WifiRSSI. But i have a problem using it. Here my setup: Matlab R2007b and WindowsXP SP3. The driver can be started successfully:
>> !net start ndisprot
The EP_NSWD NDIS Protocol Driver service was started successfully.

But if I use your examples like
y = wifiRSSI([] , 100 , 10);

I get errors:
??? Invalid MEX-file 'C:\Documents and Settings\Mark Weber\My
Documents\MATLAB\WIPoS\wifiRSSI.dll': The
specified module could not be found.

Recompiling is very difficult because VS 2008 is installed on my system. Maybe you have an idea? The right workspace is selected with wifiRSSI.dll and wifidevice.dll in it.

Thanks for your help in advance.

BR Mark Weber

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