I'm making a target to an outdoor robot competition.
The target should detect if some of the robot got touched or got an hit automatically. and the target can get hit 360 degree.
I'm searching for the perfect sensor to detect an hit, without get false positive from a wind.
My option right now are: 1- ultrasonic sensor (bad coverage) 2- tilt sensor (bad FP rate) 3- wooden conductive
I would like to know if someone has other ideas (that affordable - less than 30$ dollar per target might be o.k)
Edit: the target is static, and just waiting to a robot to touch it.
Edit: The specs are:
1- The target dimension is 1 meter height, 0.5 meter width , 0.3 depth.
2- To trigger the target ,the robot should be around 10 centimeter long to any point of the target surface.
3-To trigger the target the robot needs to get close up to 10 centimeter or even press with around 1 Newton force. the robot might even throw an object that satisfy the previous condition.
4-Detection must be only from intentional touch.
5-Wooden conductive is trigger because a human is Electrically conductive. this might not be the option when we throw an object.
6- Target will be placed outdoor, so the sensor need to be wind-resistance (not extreme wind condition- just around 20-25 km/h)
7- I prefer a sensor that detect touch (more than proximity)because it might make my solution more cheap and reliable(in factor of amount sensors as i estimate).