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Energy Consumption Project with Xbee Pro 804.15.4 : Question about data collision

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Hello everyone !

I'm a student in BTS IRIS ( Information Technology ) and I have to do a project to get my degree in my last year ( 2 years ).

So my project consist to get the electricity and water consumption of each buildings of the school and store it in a database.
Once the informations stored my team-mate will execute SQL query to get the average of energy consumed in the last week, month or year.
The energy consumption will be retrieve and send using Xbee technology.

So here is my problem : I need to send the information using some Xbee Emettor ( much as Xbee, as building -> End Device ) to the Xbee Receptor ( Main Server - > Coordinator ).

The protocol I'll use will be build like this :
Code:
$ENERGY_METER_ID|PHASE1|PHASE2|PHASE3|WATER|OFF-PEAK|FULL-HOUR#

Example : $239239|010|005|002|10.3|0000063|0000080#

Here is the situation like I see it for the future ( But I'm not sure if I'm doing in the right way ! )

xbeediagramme.png

What I want to know is how the data is retrieve from the Coordinator.
In class, I can connect only two Xbee device for the moment, which works fine but I don't really know how the Coordinator will be retrieve the information of two ( And more ) Xbee End Device Emettor at the same time ?

I need to store each information ( in a array ) from the End devices in the Coordinator ( Which will be connected to a simple PC ) like this for example :

$1|010|005|002|10.3|0000063|0000080#
$2|010|005|002|10.3|0000063|0000080#

Because I need to get these informations from another client ( in TCP/IP ) in real-time !

I'm still new ( and lost ! ) about this new technology so sorry if my question is stupid.

I hope my explaination is understandable thought !

Thank you in advance for the help.

( And sorry for my english..)
asked Feb 11, 2012 in IEEE 802.15.4 by rom1415 New to the Community (6 points)

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14 Answers

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Thanks for you help chobichan I just updated the firmware to DigiMesh and it works ! I just need to wait until I get a third Xbee to test with a Base Xbee and two routers.

I'll keep you informed ;)
answered Feb 13, 2012 by rom1415 New to the Community (6 points)
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Did tried this? I would like to know about your reviews on this.


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answered Feb 14, 2012 by jamosstraws New to the Community (1 point)
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Quote:
Did tried this? I would like to know about your reviews on this.

Off course yes ! But what do you to know exactly ? To update the new XBP24-DM firmware to the Xbee Pro I needed to do a Reset but I didn't have solution because there is no reset button on my board so I checked the manual and I saw that if I rely the ground ( pin 10 ) to the RST ( Reset : pin 5 ) it's perform an reset to the device. So when the dialog box asked me to do a reset on X-CTU I tried this and it's worked! Hope it's help.. [:)]
answered Feb 14, 2012 by rom1415 New to the Community (6 points)
0 votes
I'll inform you once I get my Base Xbee and routers.
answered May 26 by wanmarissa New to the Community (1 point)
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