RS485+Xbee+Ardiuno/PIC

Development Boards Arduino
1

Hello All

I need your advice to select products.

Here is my idea…

http://s13.postimg.org/cj4422cjb/xxxxx4.jpg

There is 10 child measurement + 1 parent PC.

10 child send data, each 10 minute to PC.

PC has database to store measurement data.

here is my target.

  1. Battery must be keep 1 year.

then I need this level for low power effort.

https://www.openhomeautomation.net/arduino-battery/

  1. To save battery, i do not want to use voltage regulator.

Quesiton #1

Ardiuno can get data via RS485 and save

and send it to PC via Xbee network ?

Quesiton #2

PC only read buffer of Xbee.

and store data to database.

Should I worry buffer size of xbee ?

because all child send data at random.

Sometime, all 10 child may send data to PC , Xbee.

Question #3

Ardiuno can control RS485 + Xbee like my idea ?

please advice and give me any comment.

because This is my first work with Ardiuno , PIC.

I am programmer. then, this is first experience to try Ardiuno.

Any comment is welcome !

Kazu