摘要
介绍了一种用于便携式X射线机的无线远程控制系统。该系统采用监督控制方式,系统体系结构采用C/S模式,服务端(本地控制端)和客户端(远程控制端)均为便携式计算机,利用支持802.11n标准的无线局域网进行信息通信。远程控制端通过无线网络向本地控制端发送控制信号,再由本地控制端通过可编程逻辑控制器(PLC)实现对射线机的控制。同时,本地控制端向远程控制端反馈现场实时图像、所采集的图像文件和操作结果等信息。系统中,视频图像采用H.263标准进行压缩编码后再发送,采用RTP/RTCP协议作为视频传输协议,采用UDP协议作为指令传输协议,文件的传输采用TCP协议。通过试验,证明该无线远程控制系统基本符合射线检测领域内控制指令传送和图像传输的要求。
This article proposes a wireless remote control system for portable X-ray machine. This renovated system is based on C/S model, in which both Server and Client are portable computers, and the wireless local area network（WLAN）that suit the 802.11n standard is used for communications between Server and Client. In this designed system, the Client sends control commands to the Server through wireless network, and then the Server realizes the control for Xray machine using a Programming Logic Controller（PLC）. Meanwhile, the Server will feed back the real time video image, captured images and operation messages to the Client. To be transferred better, the real time video image is compressed based on H. 263 video-compression standard. And the real time video image transmission adopts RTP/RTCP protocol, the control command transmission adopts UDP protocol, and the file transmission adopts TCP protocol. The proposed wireless remote control system basically can meet the request for long-distance control and image transfers in the fields of industrial non-destructive flaw detection.
出处
《无损检测》
2010年第3期209-213,共5页
Nondestructive Testing
基金
高分辨率射线数字影像产业化前期关键技术研究(山西省科技厅041106)
