Time flies, I have a junior; fleeting, National Undergraduate Electronic Design Contest has ended four months. At the time of the passage of time in a hurry, we are constantly racing against time every day. During the race, I have been on the run, will forget a lot, but at the rest stop, and sometimes looked back I walked down the road.
As a Mechanical and Electrical Engineering Mechatronics of a student, this summer I participated in the National Undergraduate Electronic Design Contest. From the beginning of the summer electric equipment for the event, I almost have to soak every day in the laboratory, tangled is the eternal theme. Some might say, desperate for a game like this for two years worth it? I want to say is worth it. To this because we are much more than a competition, resulting, also much more than just the game. Winning or not winning, I have no regrets. People with those on a vacation home for the holidays to watch TV than up, this is the real university life, because a rare few back stroke. Compared with those who engage in study hall every day as one of the weighting, it makes more sense, because college is not in the Scriptures. I like this life.
Although the entire summer is very hard, very tired training, but will encounter countless difficulties and setbacks, as well as a variety of unexpected problems, we can say we spent all day in the tangle, but we really grow a lot. As only one team of students from mechatronics, electronics knowledge is almost empty, let alone reach the level of competition. Because the love of electronic technology, the hands-on interest, preference for innovation activities, I started learning about the end of the semester freshman course, stick with it, perhaps this process will be a lot of hard base than the other students, but I have no complaints no regrets, because at the base learned a lot of skills and knowledge I am interested in, know a lot of truth in life doing things, learned the team, met a lot of like-minded friends and a group of selfless cattle seniors.
The following is a summary of this race, gain experience, solve problems, to make up for lack of self-improvement. For summary of this competition, we divided the race preparation before the game, during the game, after the game summed up in three parts.
First, prepare race ready
In the month before the start of the game yet, we have prepared staying in the training camps, learned during the debugging of various types of sensors, such as: MPU6050, motor drive module, steering control module, communication module ...... these sensors commissioning our first contact is particularly troublesome, variety, but we have been overthrown, and all access to large amounts of data every day to understand the use of these modules, sometimes a look that day, very painful process, but still happy and so we grow in pain and pleasure on the road, I remember MPU6050 this module, then I will not do it for headaches, parameter acquisition does not know how to use, designed to mathematical algorithms, data calls, and the mathematical derivation of architecture, the final commissioning will come out, or very happy, a kind of superiority. Then also bought a wind speed sensors, one to measure the size of the wind using the number of pulses, bought back, it is responsible for collecting pulse, then I understand the timer is not very thorough, always encounter some weird the problem is not automatically count pulse, the pulse count is not allowed, halfway lot of information, eventually the sensor debugging, you get the wind speed.
There are hardware preparation, welding STM32 minimum system board, and the preparation of various types of devices. The teacher also taught us the way some of the welding circuit, the circuit design very good teacher, a pulse frequency multiplication of the number of pulses, the rotation of the drive circuit of magnification, a full magnified four times, although we are also what time I do not know, but still listened to the teacher to explain, and ultimately completed the teacher's task. So that enhance our ability to get in.
Second, the process of the game
On August 7, the long-awaited electric race finally started, we are waiting for the arrival early topic, we finally identified the problem as I _LED linear display device, at first not sure about this question, but the teacher and with the help of his teammates, I finally overcome the difficulties, determined to do this problem, before noon, we confirm good topic, and then continue to do the test, at the beginning, we tried to use small motors to be driven to rotate, and then use the tunnel for LED display board to do, the first day, we did not do his mechanical architecture, made a model out, turn up very shaking, completely impossible, then, I'll use this to do the commissioning Some small programs, initial awareness of questions, and there is a certain way of thinking, convinced that the question of confidence to do this.
The next day we flew for the other methods of this architecture, buy something online, ready to do this question, I will carefully examine the topic in a graphic do another logger, we consider the method of entry, we intend to start image entry, image processing considering that I will not, I want to use the next key input mode, using a code reading way entry, the last communication module Bluetooth module, and during the next cramming knowledge of Bluetooth, it may be time tense the reason, failed to properly understand the Bluetooth module, debug communication encountered problems large and small, went to great lengths finally good debugging these programs, but also with another piece of board after the successful commissioning.
On the third day, we motor to, and I also do graphic logger program, feel better in the evening, architecture well, in motor drive, LED dot matrix presented in front of us, we also found some problems need to add a Hall sensor fixed positioning, the teacher also calculated the length of the night by the architecture of the high number, to display the square, the night is the night that night I debugger, under the action of Red Bull, the whole excitement from the people open, and I just race the same time, at my fingertips quietly flowing.
6:00 am on the fourth day, when most of my programs have a prototype, in the teacher's urging, I lay two hours, 8:00 Next up is dry, to me, very very sleepy time tired, but today is the last day, in any case we have to step up the process, because we spent a lot of time on architecture, architecture after a morning of adjustment, and finally had a complete way, in the afternoon, the installation process is that we control chip while commissioning the installation side, this will all be successful, probably because of my negligence, faulty connection, resulting in Bluetooth burned, then we anxiety, heart into my throat, and continued investigation error finally the normal operating program in the afternoon, as is the use of teletext transmission input Bluetooth module, but the problem occurs we Bluetooth, do not lead us to the graphic input transmission line to the LED array display device. At the time I settle old scores, hated myself. But time does not permit us again, so we had to do their best side show to the judges look good, not the best, but wanted stability. Then use a large packing box, and thus, through our hands-on production of the device sealed, my National Undergraduate Electronic Design Contest also put a stop to this.
Third, after the game summary
After this electric race, we know the competition process, understand a product's production process is not easy, need their cooperation in order to design and support of all aspects of the team and to play the biggest role, be some improvement on the psychological, because we met, we will know how to deal with, rather than escape. Then I learned a lot of things, a lot of harvest, knowing the LED linear array displayed by the human visual residue Let us see is a screen font or phenomenon; I wrote the code is usually scripted surface, apply it not very smooth, there is a problem will be to find the problem before routine to check their own problems, but after the contest, the teacher let me start a discussion in mind, let me understand the importance of getting the debugger, indirectly also shows its own C language has many deficiencies, need to enhance learning; there is a learning module, without a foundation, usually should pay more cognitive use these modules do not crammed, to the chicken into chaos pace, on their own very bad; a single drive success and represents more successfully together, usually we should do more to comprehensive training. Although this contest a little behind in the ranking, is the third prize, but we do not regret our best efforts, say, the greatest gains is to exercise their own, self-awareness capability, we know there are many deficiencies, need to keep learning, the way is very long, can not neglect the need to study hard.