bluetooth sensor network detecting & monitoring bluetooth device

i would like to know appropriate devices i would need(type of sensor nodes,gateway)

Leighann

All questions on Computing

Answers

i dont knw how to start

agieli

08 February 2012

It might be worth thinking about exactly what your requirements are. For example: Does it have to be bluetooth? What are you sensing? What power source is available to you? How much information do you need to transfer? What range do you require? What environmental factors need to be addressed (will it be at the bottom of the sea? In your back garden? In a nuclear reactor?) Is it a fixed set of sensors, or are you likely to add new ones in the future?

theo.cushion

09 February 2012

You also need to do this for the monitoring side. What information needs to be displayed? Does alerting need to be done? Where will the monitoring station be situated? ...

theo.cushion

09 February 2012

i would like to deploy the sensor nodes in a small room,where it would be detecting bluetooth devices and track them representing their location in a overhead map of that particular room(a simple map made up of lines).

agieli

09 February 2012

i would like system to make use of few nodes(eg 3) ,it shouldnt be of fixed set of sensor

agieli

09 February 2012

So you just want to track what bluetooth devices are present, and where they? Will you be able to install software on the devices?

theo.cushion

09 February 2012

as long as the divice is still monitored,the triangulation algorithm should be used in knowing the location of the detected device before data from sensor node to represent on the overhead map

agieli

09 February 2012

It will be difficult to pinpoint the devices if you are doing it purely from the monitoring node. The only metric you will be able to use AFAIK is signal strength which is a very poor way to pinpoint a device. What triangulation algorithm are you going to use?

theo.cushion

09 February 2012

oh!is that what u would suggest i should try,tracking from the signal strength?

agieli

09 February 2012

i would really like to try,but i need to know some basic things,as u have been suggesting

agieli

09 February 2012

It would not be very accurate using signal strength, because while signal strength does vary with distance, it also varies on a lot of other factors as well.

theo.cushion

10 February 2012

One thing you could do though is have several monitoring stations. These would be able to tell what devices where around. If the monitoring stations were in fixed positions then you could create a map, and draw devices on it that it could see. You would not though be able to say exactly where any of those devices were.

theo.cushion

10 February 2012

The best place to start will be to figure out a little program to see what information you can get your hands on. What do you want to use as your monitoring station?

theo.cushion

10 February 2012

would sensor nodes do(though i dont knw specifically which to use to detect devices)?

agieli

10 February 2012

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