本文關(guān)鍵詞：基于STM32的新型家用報(bào)警器的研究與實(shí)現(xiàn)　出處：《燕山大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 視頻監(jiān)控 彩信 圖像編碼 STM32 運(yùn)動(dòng)檢測(cè) 特征提取 μC/OS-Ⅱ GPRS

【摘要】：隨著人們生活水平的日益提高,家庭安全問題已經(jīng)越來越受到人們的重視。本文在分析了國內(nèi)外家庭安防監(jiān)控現(xiàn)狀和已有的智能監(jiān)控報(bào)警器的基礎(chǔ)上,將圖像處理與嵌入式技術(shù)相結(jié)合,設(shè)計(jì)了一款基于嵌入式平臺(tái)的視頻監(jiān)控系統(tǒng),利用GPRS無線技術(shù)、手機(jī)等實(shí)現(xiàn)對(duì)室內(nèi)環(huán)境的遠(yuǎn)程監(jiān)控。本文首先根據(jù)國內(nèi)市場(chǎng)環(huán)境確定了系統(tǒng)設(shè)計(jì)的目的和原則,對(duì)系統(tǒng)整體進(jìn)行了設(shè)計(jì),介紹了系統(tǒng)硬件平臺(tái)STM32的相關(guān)知識(shí)以及安防監(jiān)控系統(tǒng)所采用的嵌入式技術(shù)、GPRS技術(shù)和圖像處理技術(shù)等。其次,依據(jù)模塊化的設(shè)計(jì)思想將整個(gè)嵌入式系統(tǒng)的硬件電路劃分為三個(gè)模塊,分別為主控模塊、OV7725圖像采集模塊和GPRS無線通訊模塊。介紹了各模塊所采用芯片的特性以及與STM32之間的通信接口,并設(shè)計(jì)了電路原理圖。再次,研究了安防監(jiān)控中警情監(jiān)測(cè)算法和JPG圖像編碼。針對(duì)本系統(tǒng)所采用的硬件平臺(tái)設(shè)計(jì)了一種基于背景差分法和幀差法的運(yùn)動(dòng)檢測(cè)算法,對(duì)圖像連通域標(biāo)記算法之一的兩遍法進(jìn)行了改良。在完成運(yùn)動(dòng)檢測(cè)后,提取了運(yùn)動(dòng)目標(biāo)形狀特征,并依據(jù)長寬比與面積特征對(duì)警情做出判別。最后,實(shí)現(xiàn)了各硬件外設(shè)的驅(qū)動(dòng)程序,將μC/OS-Ⅱ操作系統(tǒng)和FAT文件系統(tǒng)移植到STM32平臺(tái),實(shí)現(xiàn)了短信和彩信的收發(fā)程序。基于μC/OS-Ⅱ設(shè)計(jì)了包含四個(gè)任務(wù)的應(yīng)用程序,并進(jìn)行了系統(tǒng)測(cè)試。
[Abstract]:With the increasing improvement of people's living standard, people pay more and more attention to the problem of family safety. This paper analyzes the current situation of home security monitoring and the existing intelligent monitoring alarm devices at home and abroad. Combining image processing with embedded technology, a video surveillance system based on embedded platform is designed, which uses GPRS wireless technology. Mobile phone and other remote monitoring of indoor environment. Firstly, according to the domestic market environment to determine the purpose and principles of the system design, the system as a whole is designed. This paper introduces the related knowledge of the system hardware platform STM32 and the embedded technology and image processing technology used in the security monitoring system. Secondly. According to the modular design idea, the hardware circuit of the whole embedded system is divided into three modules, respectively as the main control module. OV7725 image acquisition module and GPRS wireless communication module. The characteristics of each module and the communication interface with STM32 are introduced, and the circuit schematic diagram is designed. This paper studies the alarm monitoring algorithm and JPG image coding in security surveillance. A motion detection algorithm based on background differential method and frame difference method is designed for the hardware platform of this system. After completing the motion detection, the shape feature of the moving object is extracted, and according to the aspect ratio and the area feature, the detection of the warning situation is made. The driver of each hardware peripheral is realized, and the 渭 C / OS- 鈪，

本文編號(hào)：1441297