




摘 要:針對目前視頻監控系統不斷升級改造存在的布線工作量大、布線成本高、無法存儲及計算海量視頻文件的問題,該文提出基于電力載波技術和云計算框架的視頻監控系統。視頻數據經過調制解調、振蕩、放大、耦合等過程,利用電力線網絡傳輸到各分控點,通過互聯網傳送到云端,利用云端強大的存儲、計算能對視頻數據進行各種處理。設計中硬件部分的ARM11微處理器主要負責視頻數據的采集、編碼并封包傳送到PLC調制解調模塊,完成數據收發控制和系統任務調度。軟件部分主要包括開發系統搭建、USB攝像頭驅動、視頻數據采集、LCD實時顯示、網絡傳輸和雙核數據處理等。該文的設計充分結合電力載波和云計算的特點,在視頻監控領域中具有較高的應用價值。
關鍵詞:電力載波;云計算;視頻監控;數據收發控制;系統任務調度
中圖分類號:TP277 文獻標志碼:A 文章編號:2095-2945(2024)31-0126-04
Abstract: Aiming at the problems of heavy wiring workload, high wiring cost, and inability to store and calculate massive video files due to the continuous upgrading and transformation of video surveillance systems, this paper proposes a video surveillance system based on power carrier technology and cloud computing framework. Video data goes through processes such as modulation, demodulation, oscillation, amplification, and coupling, and is transmitted to each branch control point using the power line network and transmitted to the cloud through the Internet. The powerful storage and computing capabilities of the cloud are used to perform various processing of video data. The ARM11 microprocessor in the hardware part of the design is mainly responsible for collecting, encoding and transmitting video data in packets to the PLC modulation and demodulation module to complete data transceiver control and system task scheduling. The software part mainly includes development system construction, USB camera driving, video data collection, LCD roeQY8TSBTq3ihlI2PQm/2w==eal-time display, network transmission, dual-core data processing, etc. The design in this paper fully combines the characteristics of power carrier and cloud computing, and has high application value in the field of video surveillance.
Keywords: power carrier; cloud computing; video surveillance; data transceiver control; system task scheduling
隨著社會的發展,人們的安全防范意識不斷加強,視頻監控系統已廣泛應用于各行各業,在小區、校園、煤礦生產、賓館和交通等領域發揮了重要作用。視頻數據的傳輸可以采取2種方式:無線和有線,無線傳輸由于在傳輸路徑上有墻體等各種障礙物的阻隔,數據傳輸不可靠;目前市面上的視頻監控系統主要以以太網作為傳輸媒介,需要單獨的傳輸線路,而且后期的擴容、改造需要重新布線,成本高、工程量大。采用電力載波技術,利用電力線作為視頻信號傳輸線路,可以大大減少網絡的投資,降低成本,在小范圍內具有較大優勢。……