孫志勇



摘 要:研究了基于網絡控制的無線投影系統的實現路徑,闡述了無線投影網關軟硬件的規劃路徑,根據TCP/IP 協議綜合運用ARM 嵌入式系統及無線通信及監控等技術完成了一個多用戶無線投影控制系統的設計。詳細介紹了無線投影網關及管理軟件的實現路徑,該系統適用于PC端及手機Android平臺,用戶端采用WiFi通信技術同無線投影網關建立通信過程,使無線投影功能得以有效實現。多個用戶和平臺可共同使用無線投影功能,切換方式為一主多從。實驗測試結果證明了該系統無線投影功能的可行性。
關鍵詞:無線投影系統;網絡控制;無線局域網;實現路徑
中圖分類號:TN 92
文獻標志碼:A
文章編號:1007-757X(2020)11-0048-03
Abstract:This paper mainly studies the implementation path of wireless projection system based on network control, and expounds the planning path of hardware and software of wireless projection gateway. It is based on TCP/IP protocol and integrated with ARM embedded system and wireless communication and monitoring technology. The design of a multi-user wireless projection control system, the implementation path of the wireless projection gateway and management software are introduced in detail. The system is suitable for the PC terminal and the mobile phone Android platform. The user terminal uses the WiFi communication technology to establish a communication process with the wireless projection gateway to enable wireless. The projection function is effectively implemented. Multiple users and platforms can use the wireless projection function together, and the switching mode is one master and multiple slaves. The experimental test results prove the feasibility of the wireless projection function of the system.
Key words:wireless projection system;network control;wireless local area network;implementation path
0?引言
快速發展的網絡信息及移動終端技術為投影設備在日常工作生活中的普及應用提供了技術支撐,多媒體應用隨著音視頻和編碼技術的日益發展成熟而得到了普及應用,采用多媒體的交互模式可在對交互雙方意圖進行直觀表達的同時顯著提升交流效率,作為一種多媒體主要實現方式投影仍然是交互領域內的研究熱點,傳統接線式投影方式受到布線和功能不足的限制已經難以滿足現代多媒體交互需求。投影機投影功能的實現需連接其他相關設備(包括中控設備、計算機和音響等),設備數量越多連接復雜程度及成本越高,近年來傳統投影控制模式逐漸被基于網絡的控制模式取代,主要由PC端或手機移動終端通過無線連接實現對投影設備及功能的控制,顯著減少了使用成本及后期設備維護工作,本文主要對使用網絡控制的無線投影解決方案進行設計。……