單片機外文翻譯----基于單片機的電動智能小車-單片機-資料下載頁
2025-01-19 07:56本頁面
【導(dǎo)讀】小車的智能控，該系統(tǒng)還包括直流電機、L9110芯片和LM324比較器等。片機作為智能小車核心控制器。器檢測黑線,使電動車在行駛過程中保持直線運動且不會脫離蹺蹺。這種方案能實現(xiàn)對電動車的運動狀。態(tài)進行實時控制，控制，靈活可靠，精度高，可滿足對系統(tǒng)的各項要求。流調(diào)速系統(tǒng)采用脈寬調(diào)速系統(tǒng)，其主電路采用脈寬調(diào)制式變換器，簡稱PWM變換器。連續(xù)，系統(tǒng)的低速運行平穩(wěn)，調(diào)速范圍較寬，可達1：10000左右。同樣由于開關(guān)頻率高，若與快速響應(yīng)的電。機相配合，系統(tǒng)可以獲得很寬的頻帶，因此快速響應(yīng)性能好，動態(tài)抗擾能力強。膠帶，包括直線行駛區(qū)和沿弧線行駛區(qū)兩個區(qū)域。接收管接收；如果遇到黑線則紅外光被吸收，則小車上的接收管接收不到信號。當(dāng)傳感器檢測不到光時，處于截止狀態(tài)，雙運算放大器LM324輸出低電平給。使外圍器件成本降低，整機可靠性提高。直流電機、步進電機或開關(guān)功率管的使用上安全可靠。理器接收并處理。到前進、左轉(zhuǎn)、右轉(zhuǎn)及停止行駛的目的。
【正文】 age signal, it could be processor receives and processing. 2. 4 remote control module design This module will launch end USES high sensitive H L 5000 type universal television remote control, the receiver using receive frequency for 38kH z39。s receiving head 1838, this module and the single chip puter interface is very convenient. In addition, for the red outside meet after harvest of plait code letter number, the department tasseled set when shipped with project of AT89C52 single chip microputer external interruption to receive, signal the falling edge of trigger external interruption. In order to recognize a plete key signal, must for each coding pulse width were measured with discriminant receives the pulse is! 0 ? still! 1 ?, the microcontroller timer/counter to measuring pulse width. Timer/counter except points than can be set, from except 2 to except 2048, measurable pulse width can reach 500m s. This paper set except points for 12, namely than 12 points frequency, because the external clock is about 12MH z, clock cycle for 1 s, so the timer/counter for 1 per timing once s. 2. 5 alarm module design Alarm module core chip 110 IC, can choose application in automobile, motorcycle, alarms, personal riot device, door magic alarm device and etc. 3. System software design This system software modular structure, the main program, initial antifuzzy procedures, interrupt subroutines, delay subroutines, buttons pronunciation subroutines, buttons scanning subroutines constitutes. 3. 1 tracing subroutines design Tracing module is designed by the left right photoelectric sensor output terminal receiving monolithic machine respectively, P 22 and P23 tube feet, then through the microcontroller programming, produce PWM control signal, through L 298 control motor speed, let the car to move forward, left turn, turn right and stop driving purpose. 3. 2 avoid barrier of programming Obstacle avoidance module is designed by the infrared reflection sensor module around the output terminal receiving MCU respectively P20 and P21 tube feet, then through the microcontroller programming, produce PWM control signal, through L298 control motor speed, let the car to move forward, left turn, turn right and stop driving purpose. 3. 3 remote subroutines design Remote control module is designed by the infrared sensor 1838 an output terminal of the receiving MCU P32 tube feet, then use allpurpose remote control on the remote control, then let microcontroller decoding, produce PWM control signal, through L298 control motor speed, let the car to move forward, left turn, turn right and stop driving purpose. 4 Summary Adopts singlechip, using photoelectric sensor and infrared reflection sensor was designed as a detection system, can realize automatic homing line to walk, automatic obstacle avoidance, alarm and remote control functions such as intelligent car. This design is the obvious advantages of simple circuit, reliability, low cost, and very easy to function of further perfecting and expansion
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