Telemetry, RF packet network
Telemetry, RF packet network
(OP)
I am programmer gettin into EE. I need to design a telemetry system that has multiple transceivers all sending info to a main computer/transceiver. They should be identifiable (by address) and the main computer should get digital data bytes from the sensors. What is the best way to go about this? How should I handle the RF communications? Are there systems already that can control packets of data, with many senders/recievers at once that I could use/build?
Thank you,
John
Thank you,
John





RE: Telemetry, RF packet network
4.) one or bidirectional ?
before starting to design.
<nbucska@pcperipherals.com>
RE: Telemetry, RF packet network
2) the delay i'm looking at around 50ms for a 16byte packet, or 320bytes/second
3) distance, the RF only needs to travel around 100yards
4) bi directional communication, the sensors will be doing display output also
so any ideas on how i should start? what books/forums/techniques to use?
RE: Telemetry, RF packet network
http://www.parallaxinc.com/html_files/products/RF_Mods/RF_comparison.asp
The second point is the protocol. There are many protocols in the market (CEBus, CAN, TTPA, Ethernet, Ninth bit, etc). You should chose one regarding your specific application.
aarias@bo.ibm.com
RE: Telemetry, RF packet network
Less easy way: Family Radio Service walki-talkies (sold at Target, K-mart, etc.) cost $30/two. A microcontroller circuit could be used as the MODEM (the walkie-talkie is functionally equivalent to a phone line, except that you cannot "talk" and "listen" at the same time). If you are not good at signaling (its not so easy), you can buy MANY different MODEM chips from companies such as MX-COM.
RE: Telemetry, RF packet network