In the early morning, I lay in bed and couldn't sleep. Unfortunately, our team did not appear on the retest list for the national competition. From the sealing of the box after the 11th evaluation to the announcement of the evaluation list on the 12th, my mood experienced ups and downs, and I realized that I had failed. . . And this is the last time I participated in an e-sports competition. From 21 to 23, I participated in the competition for three years. The strength in the freshman competition was not good, the selection error in the sophomore competition, and the blind confidence in the junior competition. I left too many regrets for myself, I always encourage myself, just work harder next time. As everyone knows, regrets are always there, and I wasted the last chance to make up for regrets.
The following is my experience in three years of e-sports competitions, which is a bit too long, so let me tell you how the three-year competition experience has tortured me, and I also hope to provide you with some experience in competitions.
When the freshman participated in the competition, he chose the F-problem drug delivery car. Since the ground patrol line was a red line, the infrared tracking module prepared before the game could not be recognized at all, so he gave up and chose OpenMV tracking. Later, because there was always communication with the 32 serial port The problem was that the car was not stable at all, so I gave up. Later, I saw that other teams in the laboratory used the grayscale tracking module to achieve considerable results. We also planned to use the grayscale tracking solution. After deciding on the plan, we placed an order and bought 10 grayscale tracking modules that night. module, but after unpacking it, it was discovered that it was an analog grayscale module. Its own strength was not enough, and it was impossible to determine a stable red threshold, so it was abandoned. At this point, it has been less than 24 hours since the box-sealing evaluation, whether to continue to use the original OpenMV or change the solution again, we fell into deep thought again. . . Later, another group of bosses in the reference laboratory used gyroscopes for straight line correction. We seemed to be full of motivation and debugged overnight. Finally, we barely wrote the near-end ward. Later, due to some special circumstances, the test score was very low. On the way back from the evaluation, I looked at Guilin outside the window, very sour and sad, as if everyone was immersed in the joy of a successful evaluation, but our team could only be depressed in regret. The strength is not enough, and the selection of the plan is uncertain. This year can only end with regret. I secretly made a promise to myself that I will definitely make up for my regrets next year.
The second year of the competition was the provincial competition year. Before the competition, we had just recovered from the intense and exciting environment in ROBOCON, and continued to enter the electric competition alone, discussing with teammates, and wandering between the sound source problem and the small car problem. , before submitting the topic selection in the afternoon, we finally chose the car question C to follow the car. The chip required by the car question must be a TI chip. Before that, we used the 32 chip the most, including the 32 chip for the preparation of the electric game. I have never touched TI. It seems that everything has to start from scratch, but this is also Just the sad start of the second year. The second year's topic has high requirements on the speed of the trolley. The reduction ratio of the motor we prepared in advance is too high, and the basic speed cannot be satisfied. Before discovering the problem, we had spent too much time on the bottom layer. The compilation environment of CCS was really bad. We had no choice but to bite the bullet and continue to do it. When we were preparing to test the fourth question on the last night, we found that the car would always stop in front of the stop line for no reason when completing the third question. We immediately searched for the problem, checked the line, and even moved the test code from the previous few days out of the recycling bin. Download test, the problem still can not be solved, at this time, less than 5 hours away from sealing, I squatted at the door, recalling the regrets of last year, these days' hard work is about to become a foregone conclusion, tears are already rolling. At this time, my teammates suddenly called me, and the problem was solved. It turned out that the venue was too dirty, and Grayscale recognized the gray on the ground as a stop line. We immediately adjusted the status, wiped the venue, re-adjusted the threshold, and tested it several times. Just in case, we went back to the dormitory and took several packs of wet wipes and sealed them into boxes. It seemed that something was wrong that year. For various reasons, we only completed the first three questions, and we couldn't meet the speed requirements, and finally regretted it. On the road, my teammates reassured me that I’m fine. I’ll continue next year. Next year is still the year of the national competition, but only I know that it will be difficult to continue next year. I will have to take the postgraduate entrance examination next year. August is the most stressful time, and I can’t calm down to participate in the competition. His racing career is coming to an end with regret.
When I signed up for the e-sports competition in July, I couldn’t help but sit in the seat of the postgraduate entrance examination classroom. I remembered the promise I made on the train back to Liuzhou when I participated in the competition in my freshman year. . At the end of July, I took half of my time to prepare for the electric race. This year I still want to fight for a small car. Maybe it's regret, maybe it's feelings. Before preparing for the electric competition, my teammates and I did the small car problems for the first two years. Yes, they were the small car problems for the two years before I participated in the competition. Those two problems made me think about the optimization plan countless times when I was tossing and turning in the middle of the night. Some people may ask me why I am not tired of making small cars in the competition for three consecutive years. I think this time is a kind of self-salvation. "What can't beat me will eventually make me stronger." What can stop me.
Before the competition, everyone was predicting whether there will be a small car problem this year. I also think that the simple car problem is too simple. It should at least combine the power supply or the visual problem, so we refer to the competitions of previous years and prepare for a long time. And power supply, when the list comes out, I am more sure that the control problem will be the car problem. When we thought we were sure of everything, who would have thought that a car could be combined with a drone? Fortunately, we have done some secondary development of Lingxiaofei before, and this year's drone problem does not limit the main control chip, so we have to bite the bullet and do something we are not familiar with. This year's UAV topic is air-ground collaborative intelligent fire protection system. The competition topic explained that UWB positioning scheme can be used. We used it for a while and felt that the data was not stable, so we changed the depth camera for visual positioning. I have to say that the camera is really accurate, but The impact of the light is too great, and the title clearly cannot ask for ambient light requirements. We switched back to UWB positioning. The fire source can be identified, the car can start smoothly, and the box is sealed, and the box is sealed! During the evaluation, I was very nervous, and my palms were sweating all the time. When the teacher asked me to place a fire source, three of our team each took a fire source to put it on. No one is watching, what are you doing? When I clicked the one-button take-off button on the screen, I felt the world was suddenly quiet. I stared at our drone without daring to blink, taking off, cruising, and landing in one go. The judges and teachers were all admiring, yes, the location is very accurate, and the route is also very stable, I suddenly felt a little happy in my heart. As a result, when testing the play part, our drone always identified the wrong source of fire, and even more amazingly, always identified the wrong place. Recalling that we also encountered this problem during the laboratory test, but at that time we agreed that there was something dirty on the ground that caused the wrong recognition. We covered the problem with a quilt and continued the test. Who would have thought that it was this misjudgment that caused the error? We didn't get a single point in the performance part. Even if the box was sealed, we eventually lost the qualification for the national competition evaluation.
I glanced at the time, and it was already six o'clock in the morning Beijing time, and a new day was about to begin, and I also had to calm down and review for the exam. I don't think the electric competition has delayed me. On the contrary, it has given me a stronger mentality and made me realize my own shortcomings in the hope and despair again and again. Maybe it’s true, this is the last competition, but as I write this, I think back to my youthful self in the past two years, and I no longer regret it, just like the rising sun, we shouldn’t care about why we didn’t If you want to do it, you should be more concerned about what you should do next. I think I already know what I should do next.
Thanks to the teachers who have helped me in the past three years, especially the teachers in the laboratory, who are the real guides in my college competition career, and thanks to the teammates who have been with me for the past three years, who have always given me encouragement, even when I was most collapsed I didn't give up, thank you for your company, thank you!
