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

  更多相關(guān)文章： 視頻監(jiān)控 彩信 圖像編碼 STM32 運動檢測 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)計了一款基于嵌入式平臺的視頻監(jiān)控系統(tǒng),利用GPRS無線技術(shù)、手機等實現(xiàn)對室內(nèi)環(huán)境的遠程監(jiān)控。本文首先根據(jù)國內(nèi)市場環(huán)境確定了系統(tǒng)設(shè)計的目的和原則,對系統(tǒng)整體進行了設(shè)計,介紹了系統(tǒng)硬件平臺STM32的相關(guān)知識以及安防監(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)計思想將整個嵌入式系統(tǒng)的硬件電路劃分為三個模塊,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)計了電路原理圖。再次,研究了安防監(jiān)控中警情監(jiān)測算法和JPG圖像編碼。針對本系統(tǒng)所采用的硬件平臺設(shè)計了一種基于背景差分法和幀差法的運動檢測算法,對圖像連通域標記算法之一的兩遍法進行了改良。在完成運動檢測后,提取了運動目標形狀特征,并依據(jù)長寬比與面積特征對警情做出判別。最后,實現(xiàn)了各硬件外設(shè)的驅(qū)動程序,將μC/OS-Ⅱ操作系統(tǒng)和FAT文件系統(tǒng)移植到STM32平臺,實現(xiàn)了短信和彩信的收發(fā)程序�；讦藽/OS-Ⅱ設(shè)計了包含四個任務(wù)的應(yīng)用程序,并進行了系統(tǒng)測試。
[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：1441297