Spike Prime - Measuring Speed - Revision history

Robot at 14:39, 28 February 2020

2020-02-28T14:39:43Z

2020-02-12T07:51:49Z

2020-02-10T17:29:08Z

2020-02-10T17:10:53Z

2020-02-10T17:06:33Z

2020-02-10T17:00:34Z

2020-02-10T16:55:56Z

2020-02-10T16:54:36Z

2020-02-10T16:51:05Z

2020-02-10T16:41:25Z

← Older revision		Revision as of 14:39, 28 February 2020
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		+	<small>(''[[Spike up Prime Interest in Physics\|back to list of projects]]'')</small>
		+
	== Let's begin ==		== Let's begin ==

@@ Line 49: / Line 49: @@
 t - time<br>
-Finally the avarage speed over the three segments is calucated and shown on the hub display.
+Finally the average speed over the three segments is calculated and shown on the hub display.
 On the computer screen, in the section with variables, you can see the values of all the variables.
@@ Line 70: / Line 71: @@
 == Explore and modify ==
-* Modify the program so that it will measure the maximum speed instead of the average
+* Modify the program so that it will measure the maximum speed instead of calculating the average
 * Modify the model so that it will be propelled by motors, and make a program to move in constant velocity, then repeat the measurement

@@ Line 41: / Line 41: @@
 The vehicle should start in a distance > 120 cm. After the program is started, it starts counting 5,4,3,2,1... giving you 5 seconds to get ready. After that, it waits for the arrival of the vehicle. Next, each time vehicle enters area that is closer than 110, 80, or 50 cm respectively, it measures the time it takes the vehicle to travel 30cm. These times are stored to variables t1, t2, t3.
-The speed of travel in each of the three segments is calculated using the formula '''v = s / t'''.
+The speed of travel in each of the three segments is calculated using the formula
 Finally the avarage speed over the three segments is calucated and shown on the hub display.

← Older revision		Revision as of 17:10, 10 February 2020
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	== Present ==		== Present ==

−	* Prepare a short presentation for ~~the group~~. Tell others about how your measurement went, what issues did you have to solve. What do they mean and why did they happen?	+	* Prepare a short presentation for other groups. Tell others about how your measurement went, what issues did you have to solve. What do they mean and why did they happen?

@@ Line 1: / Line 1: @@
-== Topic ==
+== Let's begin ==
 Lucky drivers who have never paid a speed ticket. Unlucky people who's been hurt by those who were not able to control their speed. Automatic speed control systems help keep the roads safe. In this exercise, we will build a simple vehicle and a speed measuring sensor module. We will experiment with measuring speed in different ways.
 == Build ==
@@ Line 29: / Line 30: @@
 * [[Media:spike_measure_speed_vehicle.io|vehicle (stud.io)]]
 * [[Media:spike_measure_speed_model_hub_and_sensor.io|sensor module (stud.io)]]
 == Program ==
@@ Line 36: / Line 38: @@
 Download: [[Media:measure_speed.llsp|measure_speed.llsp]]
 == Measure, analyze, think ==
@@ Line 48: / Line 59: @@
 [[Image:spike_measure_speed_variables.png|result of measurement]]
-* Perform the measurements and discuss in your group what has happened.
+* Perform measurements with your model and discuss in your group what has happened.
 == Explore and modify ==
@@ Line 54: / Line 66: @@
 * Modify the program so that it will measure the maximum speed instead of the average
 * Modify the model so that it will be propelled by motors, and make a program to move in constant velocity, then repeat the measurement
 == Present ==
 * Prepare a short presentation for the group. Tell others about how your measurement went, what issues did you have to solve. What do they mean and why did they happen?
 == Additional resources ==

@@ Line 61: / Line 61: @@
 == Additional resources ==
-* Download: [[Media:Spike_Measure_Speed.zip|Measure speed - all media files]]
+* Download: [http://robotika.sk/spike/spike_physics_1_measure_speed.zip Measure speed - all media files]
 __notoc__

@@ Line 46: / Line 46: @@
 Example result of measurement:
-[[Image:spike_measure_speed_variables.png|result of measurement|300px]]
+[[Image:spike_measure_speed_variables.png|result of measurement]]
 * Perform the measurements and discuss in your group what has happened.

@@ Line 32: / Line 32: @@
 == Program ==
-[[Image:measure_speed_prg_2.png|200px]]
+[[Image:measure_speed_prg_2.png|Initialization - counting before start]]
-[[Image:measure_speed_prg_1.png|300px]]
+[[Image:measure_speed_prg_1.png|Measuring, calcuation, and display]]
 Download: [[Media:measure_speed.llsp|measure_speed.llsp]]

@@ Line 23: / Line 23: @@
 * [[Media:spike_measure_speed_vehicle.pdf| vehicle (pdf)]]
-* [[Media:spike_measure_speed_model_hub_and_sensor.pdf| sensor module]]
+* [[Media:spike_measure_speed_model_hub_and_sensor.pdf| sensor module (pdf)]]
 Download stud.io model:

@@ Line 4: / Line 4: @@
 == Build ==
 [[Image:spike_measure_speed_model_hub_and_sensor.png|model of measuring station|300px]]
 [[Image:spike_measure_speed_static_sensor.jpg|sensor module|300px]]
 [[Image:spike_measure_speed_vehicle.jpg|vehicle|300px]]
 [[Image:spike_measure_speed_sensor_on_vehicle.jpg|vehicle|300px]]
-View building instructions:
+Building instructions:
 * [[Spike Prime - Measuring Speed - Building Instructions|Measuring Speed (PNG)]]