First of all, the title of 20 1 1 should not be much different from previous years. Nothing more than instruments, power supply, power amplifier and control. So now it should be no problem for teachers to lay the foundation for students with the previous training mode. But there are a few points to note:
Because it is suggested that the written test should be conducted nationwide, and most of the written test is based on the knowledge of electronic basics and analog electricity, we should continue to work hard on the topic of analog electricity in the national topic of 20 1 1, while digital circuits may not be tested because of the difficulty of the test and the role of chips.
Related topics such as spectrometer, signal generator and phase meter have been basically presented, so if the instrument continues to present its purpose, it may still strengthen its function or increase its difficulty on the original basis, but this kind of topic has been presented many times, so the possibility of changing types is beyond doubt. In terms of instruments, it is also necessary to judge which instruments are not involved in previous years, but may be evaluated as new directions, such as distortion instruments.
Power supply seems to be an inevitable problem every year, so it is suggested that students do several power supplies, currents and voltages when exercising at ordinary times, instead of doing a special topic, they may use other topics. In addition, as a DDS signal source, it won't take you long to exercise.
The topic of amplifier has been mentioned in previous sessions, in the last specialist group, but not in the undergraduate group. It is expected that the topic of amplifiers will continue to be added this year.
20 1 1 will allow the use of embedded, DSP, FPGA related chips to participate in national competitions, and students can choose whether to use embedded or single-chip microcomputer to participate in related topics according to their own abilities. Because of the difficulty of embedding, most schools do not embed it well, so it is impossible to solve the embedding problem directly.
For control topics, most of them used car body before, but with the expansion and application of sensors and automobile functions, the topic is almost the same, and it is a bit difficult to come up with a good topic. It is estimated that the car may not be the carrier, but the car is still a good practice platform for students to learn to control the motor. Even if they don't take the exam, it is necessary to practice.
Judging from previous sessions, almost every session has designs. Although most of them are implemented as extended functions, it is undeniable that this is an indispensable aspect of an electronic competition, so we can correct the problem at 20 1 1 and specialize in a topic of voice storage, multimedia or voice processing.
It is suggested that students can practice basic topics such as RC oscillator, phase tester and multi-function storage oscilloscope at this stage, and then achieve "changing with the constant".
The above is a simple forecast of the 20 1 1 annual competition for reference only. The corresponding study and practice should be carried out according to the strength of our school and group and the arrangement of the school. As long as you have comprehensive knowledge and strong practical ability, no matter what problems you encounter, you can solve them smoothly.
Finally, I wish everyone can achieve excellent results in the competition!
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Other comments:
1, low power consumption, small signal measurement processing may also have problems.
2. Combined with the general situation of low energy consumption and emission reduction this year, the problem of low energy consumption is really possible.
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Guiding ideology of Liaoning Division of National Electronic Design Competition for College Students;
In addition to some routine contents, the meeting also announced some "gossip", which is what the meeting teacher wants to hear most:
1. This time, the concept of minimum system was not put forward (for example, AD\DA needed to design its own circuit before, but there is no special requirement this time). Embedded, DSP and FPGA can all be introduced.
2, PC, notebook can't appear in the stadium.
3. The basic test is included in the total score (when participating in the national prize, each group will send one student to take the written test, and the written test score will be included in the total score).
4. this time, the cost performance is proposed, and the cost performance accounts for 5~ 10.
5, power consumption analysis, the score is very heavy (the teacher stressed many times, the teacher said that it is also the focus of determining the first prize of the country), the teacher suggested that you save all the points that can measure power consumption when designing, and prepare in advance;
6. Small system boards can be used, and the circuit must include the circuit designed by students, and evaluation boards and large system boards cannot be used;
7. Reduce the scoring ratio of design reports.
Moderator: The guiding ideology of the competition is getting clearer and clearer! Everybody, come on.
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Because senior competition experts have predicted the competition trend:
1。 Judging from the topic of electronic competition, it should still take care of electronic related majors, and the types will not change much. However, with the popularity of consumer electronics, there will be consumer electronics functions in the title or award-winning works.
2。 Innovation is the driving force for the development of electronic industry. This year's topics will encourage innovation more, and some topics will be given more freedom. The final winning works will be more "multimedia".
3。 With the popularity of multimedia, the probability and proportion of winning prizes with color screens will increase this year, and perhaps image sensors will be used this year.
4。 With the popularity of embedded systems and the lowering of the entry threshold for 32-bit systems, there are many award-winning works of 32-bit systems this year.
5。 With the development of soc technology, the integration is getting higher and higher, the number of digital circuits will be less and less, the number of analog circuits will not be reduced, and the small system board with high integration will not be restricted, so it may get more applications.
6。 Judging from the schools with good competition results in the past, they basically started early, and the schools attached importance to it and the teachers were responsible. Now they are all moving, and they are engaged in basic training such as selection.
7。 The topic of automobile is very classic, which is a good topic for the major of detection and control.
Experts also made suggestions:
1。 Teachers are advised to start early and select outstanding talents. Sowt should analyze its own advantages and disadvantages, and make clear the direction of this year's competition topics and winning goals.
2。 Recently, we have trained students' basic skills of competition through single-chip microcomputer board, and focused on the compilation of C language and the development and debugging ability of single-chip microcomputer through interest products and electronic competition packages.
3。 In the medium term, if you play with peripheral products such as angle sensor, compass, ultrasonic wave and infrared ray. You have the ability to challenge the national champion team, learn 32 places, and strive to get more points in expanding the content of the topic.
20 1 1 e-sports assault assembly
Many students who know me often ask me how to participate in electronic competitions and how to prepare. They plan to take part in the national electronic competition, but they are very confused. They don't know where to start and how to prepare. Today, based on my personal opinion and experience, I also collected and supplemented these online suggestions, hoping to give you a reference (there are new changes every two years, this article is limited to 20 165438+.
1, full of enthusiasm for the game
It is clear that enthusiasm is to keep a person's enthusiasm for one thing, which can guide you and inject powerful motivation into you. I believe that many people take part in international competitions simply to put this experience on their resumes when looking for a job in the future. This is not a passion. Because it is the first thing for them to participate in the competition, as to whether they can win the prize, they will not pay attention to the progress of the competition. I don't advocate this. I advocate enthusiastic participation, but I don't advocate three-minute enthusiasm. Secondly, I see that many people are standing on the choice of postgraduate entrance examination and competition, so I would like to add one more point here. I think it's best not to hesitate too long in this situation, but to be clear about your own direction and make a quick decision to avoid being distracted at both ends, which is not cost-effective (after all, one's energy is limited). As the saying goes, a good beginning is half the battle.
2. Pay attention to and collect information about the National Games and understand the rules.
If you are interested in participating, you should pay more attention to the information of the national electronic competition, collect some competition materials in previous years and understand the scoring rules.
3. Team selection.
I don't have any good ideas about this team. I believe that everyone will form their own team in the preparation process in the future. The team that can win the prize in the national college student electronic competition must have the following characteristics: absolutely like electronic development. They have their own strengths in software, hardware and thesis writing. Think about what three guys who can only speak C can do together. Such a team might as well watch Prison Break and 24 Hours Together. After choosing a good team, we must determine the core figures of the team. As you can imagine, once you enter the preparation stage, discussions among team members are inevitable. It is good to express your opinions, but it is often more likely to cause disputes. At this time, if there is a core figure, his words must be absolutely obeyed in an emergency, and he has the final say.
4, a correct understanding of their own team resources, a clear division of labor.
If you want to succeed, you must recognize the advantages of your team and make full use of the superior resources of team members. For example, if a team member has an advantage in programming, you should assign him programming work reasonably, so that everyone's division of labor will be relatively clear, and everyone can give full play to their strengths and maximize the strength of the team in cooperation.
5. Preparation of basic skills
Sharpening a knife is not a mistake for a woodcutter. If your foundation is weak, don't climb up. He that climbs high falls heavily. In this respect, you need to connect common circuits, such as high gain amplifier circuit, follower circuit, filter circuit design, learn protel drawing software, draw circuit schematic diagram, and make PCB board. In the preparation process, we must learn to weld the circuit with universal plate or corrode the circuit with ferric chloride. This effect is very good. Before the official competition, you must practice making a complete electronic system in the team within 4 days, and the best time is early August (it is recommended that Lingyang University plan a warm-up kit before the competition). Don't think that you can do all the modules well, but online debugging may not be successful, and there will always be shortcomings. As it turns out, most competition teams failed in the final online debugging.
6. Choosing the right core equipment is the key.
Choosing CPU is the core device of electronic design competition. There are many microprocessors now, such as the ancient 805 1 single chip microcomputer, AVR single chip microcomputer, PIC single chip microcomputer and MSP430 single chip microcomputer. Now there are many new single-chip computers, which contain many expanded resources, such as a lot of FLASH (very helpful for LCD fonts), medium-speed AD, D\A, multi-timer, PWM, voice function and so on. These resources will bring a lot of convenience to development. From personal experience, you must use your own good single-chip microcomputer in the competition, but according to different topics, different single-chip microcomputers have different difficulties in implementation. If the preparation time is short and you don't have rich experience in developing single chip microcomputer, friends who are not confident in their own level can learn about Lingyang's 6 1 board. Quick entry and rich authoritative self-study materials can achieve twice the result with half the effort. With the changes of the times, the update of electronic products is also changing with each passing day. Now many people like embedded and DSP. According to the spirit of 2009 competition, using embedded and DSP to participate in electronic competition will be put on the agenda gradually. If you are doing a topic about high-speed data processing, such as high-speed data acquisition and high-speed data transmission, these two things will be useful.
7. Prepare basic modules
Taking part in the electronic design competition is inseparable from some basic modules. Like LED, LCD sub-circuit, subroutine. (At this point, Sunplus's 6 1 board is very good, and there are many ready-made standard functions that can be called. ) For AD AD and DA circuits, the controller must select the model, driving circuit and driver of the stepping motor. What should wireless operators prepare? Think for yourself! A first prize winner once told me that he said, "I knew I would win the prize before the competition, because I had prepared everything I needed, and I dreamed of the title of the competition a few days before the competition." What he said is a bit exaggerated, but it is also credible enough to prove that this preparation played a decisive role in the whole game.
8. focus on your strengths
The following are some questions about the national electronic design competition for college students: in fact, there are many similarities in the competition questions every year, such as simple industrial control and automobiles; Traditional topics such as data conditioning, data acquisition, wireless transmission system; Power supply design; Design of simple instruments and meters (a compulsory subject every year), such as simple spectrum analyzer in 2005 and simple logic analyzer in 2003. For the winning friends, it is suggested to focus on their own strengths.
9. Take good care of yourself before preparing for the war.
This is also an easy point to ignore. What is the concept of four days and three nights? I think it should be clear to everyone. The so-called body is the capital of revolution. Since you are determined to take part in the competition, you should adjust your body and meet the challenge in the best condition. Otherwise, the once-in-a-lifetime opportunity may pass by, leaving regrets.
10, have the determination to stick to it.
Competition is not only the competition of skills, but also the competition of good mentality. During the competition, you are sure to encounter such problems. If you don't have the determination to finish it from beginning to end, you can't go to the end after three days of fishing and two days of drying the net. We should follow the established process in a down-to-earth manner, try our best to overcome all difficulties and finish what we should do today, and we can't leave it until tomorrow.
With the above conditions, all you have to do is be confident.
1 1, can do and express.
Needless to say, a team that won the first prize must have a good captain, a good instructor and a key role, with good writing and good expression. A team's design ideas and ideas need to be made public through him, so that the jury can understand and agree with your views. The writing of a thesis is also a key element to examine the basic skills of writing. Remember that now is not the time when wine is not afraid of the depth of the alley, because there are too many objects to choose from, so you should learn to take the initiative. So a good team is half the battle!