Answer Happy

For your 4th year project, you are designing a speed camera to
catch people speeding on
campus. The speed camera consists of a digital camera, and a radar
speed detector. It
is your job to design a glue logic circuit to make the camera take
a picture when a car is
detected travelling above 40 km/h. The speed detector outputs a
three bit binary
number, representing the speed of the passing cars. An output of
binary one, represents
a car travelling at 10 km/h, an output of binary 2 represents a car
travelling at 20 km/h
and so on. If no car is detected the speed detector will output
binary 0 and if the speed is
higher than 70 km/h, the device simply outputs binary 7. The camera
will take a single
picture when a 1 is placed on its input.
Draw a truth table of a circuit that could be used to connect
the camera and the
speed detector, so that the camera would only fire when a car
travels above 40
km/h.