... | ... | @@ -53,4 +53,17 @@ As the program was executed the robot did not move at first as the sound level w |
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During our experiment we noted some disturbances to the readings due to the noise made by the robot itself. As the robot accelerates it produces noise which interfere with the sound reading. (See Fig. 3). This resulted in the robot continuing to the drive forward though the sound level was decreased. To overcome this problem we decided to mount the sound sensor at an increased distance to the robot. (indsæt fig2 picture[2]). By doing this the robot became less sensible to noise produced by itself.(video) Additionally we noted that the robot must be exposed to a certain amount of sound before it moves. This is due to the motors that need at least 50% power before they move. Finally we had a problem with uneven distribution of power to the two motors, but the problem was solved by replacing one of them.
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[![image alt text](http://img.youtube.com/vi/JBGse9FPEqY/0.jpg)](http://www.youtube.com/watch?v=JBGse9FPEqY)
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##### Fig. 3 - The video show the robot turning around itself, and |
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##### Fig. 3 - The video show the robot turning around itself, and
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---
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## Exercise 2: Vehicle with two light sensors
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#### Task
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To conduct experiments with two light sensors mounted in front of the robot and imlement both exibitory and inhibitory connections between motors and sensor readings.
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#### Plan
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We will test three different positions of the light sensors and test how it affects the behaviour of the robot. Furthermore we will implement and test both exibatory and inhibitory behavior. The tests will be conducted under the same circumstances in a darkened room. As a light source we use the camera flash of a smartphone.
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For the first experiment we mounted the two sensors at the front of the robot at an angle of ~45 degrees and a space of 12 cm. For the second experiment we used an angle of ~10 degrees, and for the third we placed the sensors at 0 degrees, where the sensors pointed in the direction of the robot. (see picture)
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