視頻鍵盤控制系統主要是對系統的DVR(Digital video recorder)及球形攝像機和一些輔助系統在內的兩個部分進行控制。具體說來,操作者通過監控專用鍵盤的搖桿,實現對攝像機上、下、左、右的運動控制;通過相應功能鍵調節攝像機鏡頭的焦距、光圈尺寸,并且能夠設置不同線路間的切換,實現錄制圖像及回放等功能,對目標區域實行監控。視頻鍵盤控制系統是視頻監控系統的重要組成部分,在各類視頻監控場合中發揮著越來越重要的作用。該控制系統操作簡便,信息豐富,能廣泛應用于各類視頻監控系統。作為視頻監控系統,其融合了多種功能,大限度地降低了控制電路的復雜程度。
本文對視頻鍵盤控制系統的設計過程做系統的介紹,主要內容是W78E365單片機的程序設計,實現使用定制鍵盤控制攝像頭活動的軟硬件設計過程。
關鍵詞:單片機,視頻監控系統,鍵盤控制,硬件驅動,嵌入式C語言
ABSTRACT
Video keyboard control system is to control the system of DVR (Digital video recorder) and spherical cameras and a number of ancillary support. Specifically, a operator achieves the upper and lower, left and right movement control of the camera through the monitored dedicated keyboard’s rocker; adjusts camera’s lens focal length, aperture size through the corresponding function key, and also he can set up to switch between different lines, carry out recorded images and playback functions, so that can monitor the implementation of the target region. Keyboard video control system which is an important component of video surveillance system plays an increasingly important role in all types of video surveillance occasions. This control system is simple, rich information, and can be widely used in various types of video monitoring system. As a video surveillance system, it integrates multiple functions, therefore large extent reduces the complexity of the control circuit.
This article describes systematically about keyboard video control system design process. The main elements of this model is the program of single-chip W78E365, the hardware and software design process about achieving the use of custom-made keyboard to control the activities of the camera.
Keywords: Keyboard Control, Video Surveillance System, SCM, hardware drives, Embedded C