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本文描述了飞点扫描机作为图象读出/记录装置,以TQ-6型计算机为主机所组成的图象处理系统中数字信息传输的一种方法,采用光导纤维为传输介质,又称为光纤数据传输。传输信道的信息速率8.448兆比特,误码率10~(-6),即工作在二级群速率上,使计算机终端备有监示器,图象可以重复显示(每秒10福,视觉仍可接受)。同时,合理设计主机接口电路,使TQ-6型计算机的读写时间允许。文篇着重分析了光纤数据传输系统,飞点扫描机,监示器之间的同步问题,以及如何实现与主机同步运行。
This paper describes a method of transmitting digital information in an image processing system composed of a TQ-6 type computer as a read / record device of a flying spot scanner. The optical fiber is also used as a transmission medium, which is also called Optical data transmission. The transmission channel has an information rate of 8.448 Mbit and a bit error rate of 10 -6, which means it works on the secondary group rate and makes the computer terminal equipped with a monitor. The image can be repeatedly displayed (10 bps, Acceptable). At the same time, a reasonable design host interface circuit, so that TQ-6-type computer read and write time allowed. The article focuses on the analysis of the fiber optic data transmission system, flying spot scanners, monitors the synchronization between issues, and how to achieve synchronization with the host operation.