The lab of week 5

1. The objectives of week 5:

Today we plan to test the car by the whole flow to make sure that it can achieve all the functions. Moreover, in order to help users get information more clearly, the group decides to add a LCD to the board, which can show some information about the car such as the position.

2. The results

Figure 1. The LCD

As shown in figure 1, the LCD we set showed the position of obstacles are on [1,0] and [1,1]. This function will continue throughout the demonstration.  Before this process, it also displayed options that would require users to select a parking space they wanted. When the users chose a parking space, the car would start to park and the LCD would show positions of the obstacles.

So far we have finished all the functions of the car. Next, the group tested different conditions to check whether it exists errors. We recorded three different routes of parking space 1 that is the lowest road. The figure 2 shows that the car went straight line directly to park into space. In figure 3, when we put obstacles onto road 1 and road 3, the car went along the middle way. It is shown that in figure 4 the car went through the route 3 while the obstacles were put on the road 1 and road 2.

 Figure 2. Route1

 Figure 3. Route2

 Figure 4. Route3

3. Summary

1) The board can allow the users to select parking space on the LCD and it will show the position of obstacles during parking.

2) The car can successfully receive the parking space and road condition information sent by the parking lot, and can follow the route calculated by the system, and finally stop at the designated parking space.

3) Although this project has been finished successfully, it will be still improved in the future. Firstly, the signal transmission time can be reduced because different size signals causes to last for several seconds. Secondly, the path of parking space 3 will be designed out. Lastly, we need to change a larger battery.