Help me design a wireless crane controlled by a computer

Hi i have design a wireless Crane which is controlled by Computer

i need to design receiver and transmitter for this crane

this crane has 6 motors so i would need 12 signals to control these motors i meant enabled signals..

i need the design of a transmitter and receiver which could transfer 12 different signals and receiver could receiver 12 different signals to control my motors..

help needed thanks

i want to ask is your motor controlled with on off only or you use stepper motors?

only on off

i need 12 signals to on off 6 motors in both directions so i will need 12 diff signals

You may build yourself this simple wireless radio data link:
http://ieee.uow.edu.au/~daniel/projects/radio_link/
and transmit some data bytes to your carane. In fact you need only 2 bytes (16 bits) to control 16 different devices.
To decode these bytes you will need to employ a simple microcontroller with at least 12 available I/Os ..
Regards,
IanP

i am new in Wireless and i havnt studied microcontroller...
:( i need simple design very simple...

compy youcan then use rf module i suggest you try the link below
http://www.linxtechnologies.com/inde...gory=kh_series

I test this module before and it give good performance

is it available in pakistan..

m having problem in pakistan these.. .Advance ICs are not available in pakistan
thats why i asked for the simple design..

I would be concerned about safety issues, either by emi interference or hacking. I would suggest using some encryption on the digital data so it can not be easily hacked. I would also suggest that the crane go into a "safe mode" if the wireless signal is ever lost, and I would design it to continuously transmit.