Hi David, thanks for the reply.
Currently, I have read articles on the use of RFID for IPS. There are projects which uses Zigbee technology via motion sensors to play around with the RSSI values so as to predict the object's location.
In comparison to the rest, the complexity in using BLE approach would be much more difficult right?
I am intending to actually create a unique ID for the object which can only be done via using the RFID tag.
By the way, I will be using Arduino due to it's simplicity. Hopefully, someone out here could give me some guidance!
My last encounter is using BLE with beacons from 2 vendors, and one is Estimote. I don't think BLE is any more complicated than Wifi/Zigbee or RFID. Generally all these radio waves transmitter have no direction, and depends on the strength feedback received by multiple receivers to determine rough position.
Using RFID, for moderate range, you will need to use active RFID tags, passive ones will not work more than a couple of centimeters.
So far my encounter is BLE and not RFID nor Zigbee. However after tested with BLE, I realise you will need an elaborate signal averaging technique to get accurate reading. The fluctuation of the signal can be rather high. I'm not exactly sure, but having they are all radio waves, in nature, I would believe the fluctuation will also exist. It could be signal bouncing off walls and other surfaces that causes the receivers getting different readings, or it could be just normal phenomenal.
I don't think Arduino is that simple to speak, because you are dealing with a tight looped microprocessor nature of development without any form of high level development codebase which you could get off a full fledged OS such as RasberryPI. However you can also try the Arduino YUN to get the best of both worlds.
I think if you are going for the project, you will need to decide for yourself which to go for. Why not try out various approaches, have a simple proof to concept before you dive into which is more practical.