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jessvi created page: Lab3 authored by Jesper Kurtzmann Svith's avatar Jesper Kurtzmann Svith
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##Group-22: Lab Notebook 2 - Installing PID controller on Megatron # Group-22: Lab Notebook 2 - Installing PID controller on Megatron
**Date:** 03/3/2015 **Date:** 03/3/2015
...@@ -17,7 +17,7 @@ Jesper Kurtzmann Svith ...@@ -17,7 +17,7 @@ Jesper Kurtzmann Svith
**Overall plan** **Overall plan**
#Exercise 1 # Exercise 1
**Task** **Task**
To mount the sound sensor and run a test using a modified version of SonicSensorTest.java. Test the sensor with different loudness and under different circumstances and describe the readings. To mount the sound sensor and run a test using a modified version of SonicSensorTest.java. Test the sensor with different loudness and under different circumstances and describe the readings.
...@@ -60,25 +60,13 @@ First we clapped at different distances to the sensor in order to measure from h ...@@ -60,25 +60,13 @@ First we clapped at different distances to the sensor in order to measure from h
To compensate for the inconsistency we decided to use a smartphone and transmit a constant tone. The setup is showed in the picture below. The car was placed on a table in the middle of the room and loudness were measured from different distances: To compensate for the inconsistency we decided to use a smartphone and transmit a constant tone. The setup is showed in the picture below. The car was placed on a table in the middle of the room and loudness were measured from different distances:
Fig. 1: Picture of the setup. The robot was placed on a table and the phone was pointed towards the robot. After each sensor reading the distance to the phone was increased. References![Skærmbillede 2015-03-02 kl. 09.56.58](http://gitlab.au.dk/uploads/group-22/lego/fcb16f422c/Sk%C3%A6rmbillede_2015-03-02_kl._09.56.58.png)
Distance (approx metres) Fig. 1: Picture of the setup. The robot was placed on a table and the phone was pointed towards the robot. After each sensor reading the distance to the phone was increased.
Sensor Readings (dB)
0
81
0.5
40
1
35
2
20
3
15-20
4
9-11
![Skærmbillede 2015-03-02 kl. 09.57.22](http://gitlab.au.dk/uploads/group-22/lego/4ffeca0d1e/Sk%C3%A6rmbillede_2015-03-02_kl._09.57.22.png)
#Exercise 2 # Exercise 2
**Task** **Task**
To use the datalogger to record data from the sound sensor. To use the datalogger to record data from the sound sensor.
...@@ -145,7 +133,3 @@ In order to make the program terminate we use the S ...@@ -145,7 +133,3 @@ In order to make the program terminate we use the S
Conclusion Conclusion
References