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hi..u know how to improve go-cart using motion sensor? Answered

im electronic student and i need to finish my project about to improve go-cart using electronic system
so i want to built a car that can detect out current place in race by display it using 7 segment..its using motion sensor to detect other car that tress passing us..can anyone help me?

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mpilchfamily
mpilchfamily

Best Answer 8 years ago

Sounds a little over ambitious. You will have a very hard time trying to get the motion sensor to only pick up a cart passing and ignore all other movement around it. Even if you could how would you track your position. If your taking a corner and there is another cart next to you passing back and forth across the sensor, the sensor will register multiple hits. And how will it know weather to raise or lower the count? The sensor will only know that something passed it. It wouldn't know in what direction the object was traveling.

You may want to consider some other ideas. You could create a system that can track how many laps you have done around the track. Put a speedometer on the cart. Make an electronic fuel gauge.

Use an ultra sonic range finder to detect when another cart is coming up behind you. With multiple sensors you can even detect which side they are trying to pass you on. Look for tutorials on ultrasonic sensors using the Arduino.

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palabuto
palabuto

8 years ago

thanks for the response..
and i got new idea for my project..
how about i make cart that can count how many laps have we pass and did we must put the sensor to starting point and how to detect only our cart and start to count
and can u tell me how to do it with circuit and what sensor is suitable
and how to make it count by 7 segment display
thanks for help

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rickharris
rickharris

Answer 8 years ago

See my response below. The real circuits use a loop in the ground at the start finish line to detect the transponders signal.

This isn't a simple task and from your questions you will find it very hard to achieve.

This is your project. In general I advised my students to do something fairly simple BUT do it very well.

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bwrussell
bwrussell

8 years ago

mpilchfamily is right, putting a motion detector on something that is moving is bound to fail.

Instead you will need all the vehicles to talk to each other or a central system (like rickharris mentions).

Another problem with a basic motion detector is that if two cars go by side-by-side then the sensor won't notice. This could also happen if cars go by close enough together that the sensor can't determine a gap. This problem also rules out placing motion sensors on the track.

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rickharris
rickharris

8 years ago

In general real race tracks use a transponder to identify each racer so that their position can be worked out.

This data could be sent back to the kart for driver information - although that's what radio, pit boards and the drivers sense of how the race is going is for really.