远程输入设备使远离计算机的用户能对远处的计算机进行批量输入作业。这种设备的最简单的结构由一台打印机、-台卡片阅读机及其通信控制处理机组成。
远程输入设备使远离计算机的用户能对远处的计算机进行批量输入作业。这种设备的最简单的结构由一台打印机、-台卡片阅读机及其通信控制处理机组成。由于通信线路中的信息是以串行方式传输的，设备中的通信控制处理机需要将输入到计算机的信息由并行转变为串行而送入通信线路，并将通信线路中送来的信息由串行变为并行后输出;此外还需要按规定的通信规程对信息的传输和纠错等处理工作进行监控。
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为实现控制距离远，精度高,必须提高远程设备信息的精度，因存在多个系统之间的通信问题，有时采用人工方式键入远程指示信息，在数据量大的情况下，导致信息键入失误率上升。为提高键入远程设备信息的精度，研究实现了基于ARM的远程设备信息的自动输入转换系统，远程设备信息通过RS485协议方式传榆至本系统，系统解析信息协议、分析数据，并将得到的键盘鼠标数据以PS2键盘协议和串口鼠标协议转发给控制系统。在实际演练中，远程设备信息自动输入转换系统提高了信息的键入精度，为控制自动化提高了效率。
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Remote input devices enable remote users to perform batch input tasks on distant computers. The simplest structure of this device consists of a printer, a card reader, and its communication control processing
Machine composition.
Remote input devices enable remote users to perform batch input tasks on distant computers. The simplest structure of this device consists of a printer, a card reader, and its communication control processing
Machine composition. Due to the serial transmission of information in the communication line, the communication control processor in the device needs to transform the information input to the computer from parallel to serial and send it into the communication line, and
The information sent in the communication line changes from serial to parallel and is then output; In addition, it is necessary to monitor the transmission and error correction of information in accordance with prescribed communication procedures.
In order to achieve long control distance and high accuracy, it is necessary to improve the accuracy of remote device information. Due to communication problems between multiple systems, manual input of remote indication information is sometimes used, which can result in large amounts of data
In this case, the error rate of information typing increases. In order to improve the accuracy of inputting remote device information, an ARM based automatic input and conversion system for remote device information has been studied and implemented
The RS485 protocol is used to transmit the data to this system. The system parses the information protocol, analyzes the data, and forwards the obtained keyboard and mouse data to the control system using the PS2 keyboard protocol and serial mouse protocol. In practice
During the exercise, the remote device information automatic input and conversion system improved the accuracy of information input and improved the efficiency of control automation.
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