小車狀態(tài)控制系統(tǒng)研究



目    錄

摘要 1

引言 1

1.系統(tǒng)結(jié)構(gòu)和工作原理 2

1.1系統(tǒng)概述 2

1.2系統(tǒng)結(jié)構(gòu)和工作原理 2

2.方案設(shè)計(jì)與論證 6

2.1信號(hào)傳輸模塊的選定 6

2.2車體的選定 6

3.硬件電路設(shè)計(jì)與實(shí)現(xiàn) 7

3.1運(yùn)動(dòng)控制單元電路 7

3.2無(wú)線路由器硬件結(jié)構(gòu) 11

3.3電源穩(wěn)壓電路 11

3.4 STC89C51最小系統(tǒng) 12

4. 系統(tǒng)程序設(shè)計(jì) 13

4.1 OPENWRT平臺(tái)的搭建 13

4.2路由器與PC機(jī)交互過(guò)程 14

4.3小車狀態(tài)控制程序流程 15

5.仿真結(jié)果 16

6.總結(jié) 18

參考文獻(xiàn) 18

致謝 20

    摘  要：本文選用PC機(jī)和無(wú)線路由器，通過(guò)WIFI(Wireless Fidelity)技術(shù)向小車發(fā)送控制命令，實(shí)現(xiàn)遠(yuǎn)距離控制小車的目的。該系統(tǒng)主要包括小車運(yùn)動(dòng)控制、圖像處理和上位機(jī)控制三部分電路。本系統(tǒng)以無(wú)線路由器為硬件基礎(chǔ)，以O(shè)penWrt作為其操作系統(tǒng)，并掛載攝像頭，采用WIFI技術(shù)實(shí)現(xiàn)小車和上位機(jī)之間的信號(hào)傳輸。本系統(tǒng)以上位機(jī)作為系統(tǒng)控制平臺(tái)，利用PHP（Hypertext Preprocessor）腳本語(yǔ)言對(duì)該瀏覽器進(jìn)行視頻框和控制按鈕的編輯和制作。本系統(tǒng)通過(guò)Proteus軟件對(duì)小車的運(yùn)動(dòng)控制部分進(jìn)行仿真，采用按鍵來(lái)模擬WIFI控制信號(hào)。仿真結(jié)果表明，本系統(tǒng)設(shè)計(jì)方案可行，硬件電路選擇合理，軟件程序設(shè)計(jì)正確，能夠?qū)崿F(xiàn)小車狀態(tài)控制。

關(guān)鍵詞：小車狀態(tài)；WIFI技術(shù)；控制系統(tǒng)；單片機(jī)

Research of Control System on Car State 

Abstract: In the paper, PC and Wireless router were used to send control commands to the car with WIFI(Wireless Fidelity) technology so as to achieve the purpose of remote control car. The system is mainly consisted of three parts : trolley motion control, image processing and PC control. This system is taken a wireless router as its hardware and the OpenWrt as its operating system. In addition, it is mounted the camera with WIFI technology to achieve a signal transmission between the host computer and the car. The system control platform is a PC which can finish the edit and production of video frame and the control buttons in PHP (Hypertext Preprocessor) scripting. The simulation of motion control was achieved with Proteus software in the system, and the WIFI control signal was simulated with the buttons. The results of simulation show that the system has feasible design scheme, reasonable hardware circuit and correct software program so as to control the car state .

Key Words: Car Status; WiFi Technology; Control System; MCU