|Oct11-08, 10:48 AM||#1|
Designing a parachute system/device
I am trying to build a system to activate a servo at a unspecified point in time when a machine and remote looses their signal between another. When the signal is lost between the two, the new system must activate a servo. We are using radio transmitters, but I can't figure out how to tackle this problem. Any assistance would be LOVED!!!
The biggest problem I am having is how to link these three things together. I was thinking about using a sensor that monitors the 2-way signal between machine and remote with a LED, then the LED turns on or maybe stops the LED when the signal is lost, then activates the actuator... i don't know...
can i build a sensor that does this?
Should I buy transmiter and put it on the plane and connect the reciever to a circuit that activates the servo? Im trying to make this happen without me doing it manually. Does this make any sense? This project uses mechanical and electrical engineering components.
|Oct11-08, 11:15 AM||#2|
What kind of radio system are you using? Most modern 2.4Ghz systems (I have one on my helicopter) have a fail safe mode built in. When the 2-way link between the transmitter and receiver are broken, the receiver goes into a fail safe mode where all servos go to a pre-specified position. I would simply just connect your servo that is activating the parachute into one of your spare channels and use the fail-safe function to set its desired positions.
|Oct13-08, 03:26 PM||#3|
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