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Hi Chris

I am trying to construct a server whereby it can be able to receive information and detect the location of a particular wireless signal.

I have a product which is worn on the hand of a person. It is suppose to be able to detect the pulse rate of the particular person and if this pulse rate exceed the "critical pulse rate" set in the program, it will transmit a signal through wireless to the server. The server would then tell the location at which this signal is send from and show the information of the person.

The problem is that I do not know how this server could be set up. Could you help?

Thanks

Calvin

Hello,

This should not be to hard to do. However there are a lot of different issues you will need to address.  More then what I can comment on this forum.   I will need to get more information from you.

For the sack of simplicity here are some of the issues.

1. Location of the access point

2. Detection of the access point IP address and mapping it to a location.

3. Accuracy of the system.  How close does the location system need to represent where the person is.

4. Cost of the system

5. Time to market - Do you have time for research and time to develop the system?

6. How do you monitor the system.

You will need to provide me some more details about the project.  Please look at my contact info on www.pinterec.ca

Chris

Hi

My aim Is actually to build the whole system in an old folks home. This server should be in a room. The old folks will be roaming around in the homes, wearing this watch which will transmit out signel when "critical" limit is achieved.

The system need not show the exact location but at least let the person who is monitoring server, which level and room the signal is transmitted from.

The cost I hope it could be as cheap as possible. I have the time, about couple of months.

I do not know what point 2 mean.

Thanks

Calvin

What I am refer to is that you need to be able to determine which access point is receiving the signal.  If you only have a couple of months to do this task it is likely not a finished product.  I would suggest considering using the area the access point as a zone.  Ofcourse most access points can cover 3 different levels.

I think you biggest problem right now will be a proof of concept and a project plan.   I see a number of wholes in your logic that will need to be looked at .

1. Determine the range of an access point.

2. Create a prototype transmitter and test your system to determine the region of the alarm.

With this you might be able to devleop a low grade non medical system as a demo.

good luck,

Chris Pinter

Hi Chris

I have a digital data send from a particular device to the router(server) and I am suppose to extract the received data from the router. The router's job is just to receive the data. Is it writing a C++ program enough to extract and display the data on the computer.

How am I suppose to get on doing this if writing a C++ program is not the right way?

Thank You

I do not have a clear idea what you are asking me. I am not sure if you are having problems writing C++ code or the communication architecture.

  It appears as if you are developing without a plan.  Please give me a call so we can discuss your project a little more.  Maybe with some more inforation, I can figure out what you are asking.

http://www.pinterec.ca/contact-us

Chris Pinter

Hi Sir,

I would like to design a project that functions depending on the signal strength of a RF signal. I read about received signal strength indicator, and somehow I think this is useful info. The concept of the project is to vary the output (e.g. a transducer) depending on the signal strength of an oncoming transmitter. What IC can i use? Thanks

I should mention that RSSI is not a very accurate measurement.    Environmental noise and distance between the receiver and transmitter will affect the RSSI reading.  So if you want to use it as a precision measurement RSSI is not the best choose. 

http://focus.ti.com/analog/docs/rfifcomponentshome.tsp?familyId=367&contentType=4&DCMP=TIHomeTracking&HQS=Other+OT+home_p_rf_if

if you need more help with Wireless product development check this out.

Good Day Sir,

We have a project that deals about locator. Our project must be a two way locator with an alarm. This alarm serves as an indicator that the one or both locator are out of range.

Sir what do you think we can use in our project

Thank You,

Angelie

Hello Angelie,

I provided information to point readers of this forum some general direction towards answering this question.  However, it looks like you might have some more specific questions that might not be best answered on a public forum.

If you like you can contact me directly here.

http://www.pinterec.ca/contact-us

Chris