Let the car fly for a while-a trip to the school Competition

 

 

I came for the first place in the school competition, but finally ran the last one. It is a bit pity that there is not much loss, because in the past test run and the final semi-finals, my car was running almost the best score. I don't care too much about the performance of the school competition. My goal is the upcoming provincial competition and the national competition. Although the results in this competition were not satisfactory, I was confident that my car was the best in the camera Group of the Engineering University. I also learned a lot through this competition, especially the competition process and rules. The general feeling is that smart car competitions are not only compared with the usual accumulation, what's more, the psychological quality and strategy during the competition!

Two weeks before the competition:My nerves are all in high tension and my score is also improved. On the track in our lab18 STo14 sThe stability of the car is also greatly improved, and the handling of dotted lines and abnormal tracks are also basically solved.

Saturday afternoon:One day before the competition, a student from the School of instruments came to inquire about our preparations. I also walked into their lab for the first time. I was shocked. Our hardware equipment was not as big as they were! They used a simulated school competition. At their request, I took my car to their runway for a test run. I didn't want to, because I didn't want to expose my real level. But it was terrible! Their tracks are totally different from ours. They get used to their tracks. They really go to their places and run in a mess! It is estimated that they had a little confidence when they saw my situation.

Saturday evening:Not reconciled. changed it.ProgramThis time, the computer and the car are taken together and we are going to switch the car over there. It was very smooth and the speed was good. It is estimated that they are stunned this time, because the gap between the afternoon and evening is so big, and I am more confident about tomorrow's competition!

Saturday night11Point half:Just as I was about to clean up and go back to the dormitory, I found that there were still some problems with the car and the revolver was not turning around. I was a little nervous. Based on my previous experience in car shunting, I intuitively told me that the situation was serious. It is impossible to go back to rest at night. After investigation, it is basically determined that the motor drive chip is burned. It's easy to find the problem. I can breathe a sigh of relief. Although I don't dare to easily change the chip, I should be able to catch up with the competition when the teacher comes to change it quickly in the morning. At this time, I found that the camera did not return a signal, and then I used a multimeter to test the voltage of each pin, and found that the video line at the connector was broken. This is easy to do. Just create a new connection. Before the end, the revolver motor is inserted into the right wheel drive chip, but it still does not turn. I am going crazy, the voltage is normal or not turn, only one reason-the motor is broken. After the removal, the motor is not broken, but the pin line of the motor is broken. When I saw someone else on the Forum, I reminded the motor that the pin was very fragile. This time I met it. If the welding fails, I think of a variety of ways to perform welding. If the welding fails, the small pieces of iron are too small. My welders have not reached the welding standards. In the early morning3A: A little tired. You need to know that you will not have a rest after dinner all day. I don't really want to participate in the competition. I found several stools to join and lie down for more than two hours.

Sunday morning:At in the morning, I got up and changed the program, even though the car was split by me. At half past six, I went back to the dormitory to wash and had breakfast.CallThe instructor calls us. Shut down! From half past seven to half past nine, we finally got through. At this time, the Division has urged me to draw lots and test run. The teacher came over and changed the chip. It seems that my judgment is correct. I quickly assembled the car, made a call, and went to the competition.

Test Run: each group has ten minutes of test run time. I was not prepared yet. I rushed up and adjusted the program for half a day. I prepared two sets of policies and several speed solutions, but it's time to try a few. At this time, I do not know which solution is better. Finally, I tried again using the test time of the photoelectric group, and found a better speed, probably able to run23 SI am very satisfied with the speed.

Official competition:

First round

30 sTest Run Time: We ran a lap at the speed of the morning test run,Prefect!

The first official competition: I improved my speed a little because I want to hit it. The match failed because the referee raised his hand!I was a little excited. I had a problem understanding the rules before. I always thought that I could run out twice. In fact, I couldn't run out once! The teacher was explaining to me that I should finish the competition first.

The second time: the speed is reduced. It is the speed of the test run, but it is still the press line.

 Third time: continue to use this speed, or fail!It's incredible that we can run the test in front of us! Three times of failure, very lost. After the teacher explained the rules to me, I finally understood.

Second round

30 sTest Run: The second round is against the first round. During the morning test run, the test run always exceeded once in one position. However, as long as the rules are understood before, it's okay to get a good score. Now, I am doomed to fail! Try running at that location at different speeds.

 The first, second, and third times all rushed out in the same position.

 In this way, I did not have any score after the two rounds.

Makeup

The makeup competition was arranged by the teacher over there. If you are unwilling or want to impact the fastest speed, you can run it again. Of course I registered! Because I am unwilling, and I think that as long as I run it all, it is the best result. In the semi-finals, I chose to use the first round of the track. The first and second matches still failed! For the third time, I suddenly thought that I had prepared the third set of strategies without differential control and acceleration. I had to use this method for the last fight. The referee raised his hand. Fortunately, there was only one referee. The competition continued. When the race car crossed the line, I breathed a sigh of relief! Score is24.8 s, Is the best! Although there will be an optical device running soon23.5Several of them broke this best score. The makeup results are not counted as the total score, but I am not so sorry.

Communication:Next, we invite the school's primary team to compete. Many schools have basically failed to run. What I remember during communication with the School of instruments and other students is that the racing car runs very stably and the dotted line is very accurate. The most frequently asked questions are: why are you not slowing down? To solve this problem, I can only say that I have never thought about using low speed.

 

Experience summary:

1, The most important thing is to thoroughly understand the rules of the competition.It was impossible to understand the rules of the competition because I did not participate in the competition.

2, Prepare an alternative.Yesterday's competition basically died in a set of solutions, and the nine-time running speed was basically not changed, both of which were relatively high speeds, and there was basically no alternative solution for direction control. If the type of the track changes and my program cannot adapt, I will be helpless.

3, Adjust the psychological status on the market.Standing on the game court, the handling of emergencies may fail, and the referee may not be able to rush for a long time. For example, yesterday I had prepared three sets of strategies, but I only used the same set of strategy for the last round of the semi-finals.

 

We have been in contact with the School of instruments over the past two days, and the gap between them is still very large.AlgorithmDesign, but hardware. Although it is a school, it has never been communicated before, and even has a taste of technical confidentiality. If you want to get a good result in the provincial competition and hit the national competition, you must ask for help. We need to figure out how to use their experimental devices.

Compared with them, we can see through the following comparison:

1, The runway in our lab has never been changed for at least three years, but they have changed once every 20 days.

2, Due to the long history of our runway, coupled with the lack of protection, we can trample on it at will, and it seems black and bright, and they are using the latestKTBoard, shoes out or carry shoes.

3, Our lab teacher may not come to the lab once a week or two, and their teacher's office is there, staying with the students all day.

4, The speed encoder used in my car is100A dollar, and their car encoder is300Multi-block.

5, All of our members are pure men, and there is basically no cooperation. They are two detachments in each group, working with men and women. Naturally, they will not be too tired.

......

However, I always think that our car is no worse than them. I don't think it is a problem to change the program that can run down our bad runway to any runway!

It is less than two months away from the provincial competition. I still have to make more effort! After all, the national competition is my goal!

Source of Slice:Http://news.hfut.edu.cn/index.news.hfut? M_id = 4 & o_id = 42 & I _id = 460768.