Test - Relationship between Accuracy and Angle

Hi,

This blog will cover the results gained from testing the accuracy of the robot successfully hitting the puck at varying angles for both sides. Below is a graph of the results.

Relationship between successfully hitting the puck at varying angles for both table sides.

The robot had the most success hitting the puck when it bounced off the right side of the table greater than the left side for all three categories. Each category had a sample size of 10. The performance of the robot decreases with increasing angle. However, as the speed was not taken into consideration when conducting this test, some of the results may be a result of the robot not having enough time to react.

For both sides, the robot had the most success of hitting the puck at an angle less than 50° as the puck bounced multiple times, reducing its velocity and allowing the robot enough time to react with 83% success rate at right side and 50% on the left side.

A possible reason for the difference between sides could be the computer vision. The puck's location fluctuated by +/-5 mm at areas in the left side due to the spotlight located directly above the system. As the spotlight favoured the left side more, the system is affected by noise causing the accuracy of the camera localising the centre point of the puck. Another problem could be the process of distorting the image and how the system perceives the location of the puck in the process and the actual location of the puck within the table.

Immanuel