What are the modules of electronic design competition
Author:Jiang Yinchen Time:2021-07-20 09:12 Browse(843)
It obviously depends on what kind of team you are in~
This obviously depends on what kind of ~.

What are the modules of electronic design competition

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take the control class as an example.
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Hardware:
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1. Power supply modules 12V, 9V, 5V and 3.3V are commonly used.
if you use batteries, you should also consider the boost block. If you use some chips that must be powered by negative voltage, you should also include lm337<
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2. Minimum system and system expansion.
in case of insufficient I / O ports, CPLD should be added<
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3. Drive module.
motor drive L298 is necessary, CMOS can also be considered, stepper motor control can consider adding L297, relay circuit can also be done, using 2803 or 2003.
5. Signal processing module.
for example, we hope that the output of optocoupler is the switching value, but if it is not, we need to add a comparator, so with the optocoupler, the comparator module is necessary (LM339 and LM393 are recommended). For example, if the signal needs to be amplified when it comes back, we need to use the op amp, and properly prepare several op amp chips, such as (tl082 and tl084).
7. Display module.
LCD, nixie tube, led and buzzer are indispensable. Why use LED and nixie tube, and why the buzzer is also a display module? The display here largely means giving feedback, such as making the buzzer call when the balance point is stable<
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8. Keyboard module.
with output, of course, there must be input.
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9. Other: the control class is easy to have a car.
so it is best to prepare a car touch. The motor is necessary, and the deceleration motor, stepping motor and speed measuring motor should be ready; When it comes to the motor, then the coupling should be prepared, which means that mechanical things should be properly prepared when doing electronics; For example, if the wireless communication module is added, the machine, electricity, light, sound and magnetism will be available.
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software:
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1. LCD display program and keyboard input program<2. Ad \ \ Da SPI transmission program<3. Data processing algorithm after AD acquisition<
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4. Motor control program.
it is not enough to adjust the speed of the decelerating motor step by step like the stepping motor. When it comes to speed regulation, we need to say the following point: PWM. We need to adjust the stepping motor to the satisfaction through frequency and subdivision speed regulation.
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5. PWM channel and bit rate output<
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6. Delay and time recording (here delay refers to software delay.
here time recording refers to timer)<
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7. Stopwatch, speed measurement, distance measurement, tracking algorithm, obstacle avoidance algorithm, etc
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8、 Some other algorithms are not necessarily needed: such as double line.
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of course.
good body and mind are also essential.
previous topics of the National Undergraduate Electronic Design Competition.
topics of the first (1994) National Undergraduate Electronic design competition.
topic 1 simple numerical control DC power supply.
topic 2 multi channel data acquisition system.
topics of the second (1995) Topic 1: practical low frequency power amplifier.
topic 2: design and manufacture of practical signal source.
topic 3: simple radio remote control system.
topic 4: simple resistance, simple power amplifier Capacitance and inductance tester.
title of the third (1997) National Undergraduate Electronic Design Competition.
Title A DC stable power supply.
title b simple digital frequency meter.
Title C water temperature control system.
Title D am radio.
title of the fourth (1999) National Undergraduate Electronic Design Competition.
title a measuring amplifier.
title b digital power frequency RMS multimeter
question C: frequency characteristic tester.
question D: short wave FM receiver.
question e: digital voice storage and playback system.
question a: waveform generator.
question B: simple digital storage oscilloscope.
question C: automatic round trip electric car.
question D: high efficiency audio power amplifier.
question e: data acquisition and processing Transmission system.
FM radio.
the sixth (2003) National Undergraduate Electronic Design CompetitionVoltage controlled LC oscillator (question a).
broadband amplifier (question b).
low frequency digital phase measuring instrument (question C).
simple logic analyzer (question d).
simple intelligent electric vehicle (question E).
liquid drop speed monitoring device (question f).
the 7th (2005) national college students electronic design competition topic.
sinusoidal signal generator (question a).
integrated operation Amplifier parameter tester (question b).
simple spectrum analyzer (question C).
simplex wireless calling system (question d).
suspension motion control system (question E).
numerical control DC current source (question f).
three phase sine wave variable frequency power supply (question g).
title of the eighth (2007) National Undergraduate Electronic Design Competition.
audio signal analyzer (question a) [undergraduate group].
Wireless identification device (question b) [undergraduate group].
digital oscilloscope (question C) [undergraduate group].
programmable filter (question d) [undergraduate group].
switching regulated power supply (question E) [undergraduate group].
electric car seesaw (question F) [undergraduate group].
integral DC digital voltmeter (question g) [higher vocational group].
signal generator (question h) [higher vocational group].
electric car seesaw (question f) [undergraduate group].
integrated DC digital voltmeter (question G) [higher vocational group] This is clear enough.
hope to adopt
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