Week 4: We got it
Our work:
1. Refine the wire length in a proper visualization
2. Add some “feedback” functions to effectively control and monitor the car.
Method:
Firstly, reduce the redundant wires such on the polarity. Next, to improve the integrated system, the feedback, as the significant part in a system, should be considered by adding monitor. The buzzer was chose as the output signal to inform customer that the car is out of limiting distance (50 cm) from their position. Two pins on the buzzer, one for ground and the other is for pin on Arduino, which could be activated by processor.
Finally, the initial speed of car is too fast to easily test. Therefore, the PWM number was adjusted to 150 as the minimum number which could drive the motors. It is also have an interval to calculate the codes during the movement. What is more, the application of this model was re-discussed as the “auto-convey”, for example, it could be applied in factory, bank and supermarket. It will raise the effectiveness and decrease the cost in the long term
Results:
Problems:
We encountered a problem this week which is that the heat will fluctuate the capability of Arduino in calculation. Because the excess power choose a battery bank is a bit more than recommending range.
1. Refine the wire length in a proper visualization
2. Add some “feedback” functions to effectively control and monitor the car.
Method:
Firstly, reduce the redundant wires such on the polarity. Next, to improve the integrated system, the feedback, as the significant part in a system, should be considered by adding monitor. The buzzer was chose as the output signal to inform customer that the car is out of limiting distance (50 cm) from their position. Two pins on the buzzer, one for ground and the other is for pin on Arduino, which could be activated by processor.
Finally, the initial speed of car is too fast to easily test. Therefore, the PWM number was adjusted to 150 as the minimum number which could drive the motors. It is also have an interval to calculate the codes during the movement. What is more, the application of this model was re-discussed as the “auto-convey”, for example, it could be applied in factory, bank and supermarket. It will raise the effectiveness and decrease the cost in the long term
Results:
Figure 1: The final design of 'follow me' car
Video: The final test video
Figure 2: The hole codes of the automatic following car
We encountered a problem this week which is that the heat will fluctuate the capability of Arduino in calculation. Because the excess power choose a battery bank is a bit more than recommending range.
Here comes the plan for next week:
1. Adjust the parameters to
function more precise
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