嵌入式喷印机控制系统

控制系统需要完成数据传输、打印控制、电机精确定位等功能,是整个喷印机系统中最为关键的组成部分,控制系统的优劣直接影响到喷印机喷印的速度、精度和质量。基于嵌入式技术,本文设计了一种喷印机控制系统,采用华恒科技HHARM2410-Integration-R2嵌入式Linux开发板作为控制核心,并利用网络传输打印数据,使喷印机具有喷印速度快,分辨率高,电机运行平稳,电机定位精确、系统运行可靠性等优点。同时,系统利用uClinux的强大的网络功能实现了运行在嵌入式上的小型Web服务器,通过浏览器访问该嵌入式喷印机控制系统上的Web服务器设置和提取运行时的数据,进行设备的维护与管理。本控制系统已经投入实际使用,相对于上一代基于单片机的控制系统,具有稳定性好、故障率低、喷印速度快、单位时间内喷印面积更大等优点。由于采用了振荡频率更高的喷头,系统相对于上一代控制系统还具有更高的分辨率和喷印精度。

Control System of Embedded Inkjet Printer

As a device for outdoor advertising, the printer requires a sophisticated control system. The control system concerns with data transfer, printing control and the perfect orientation of motor, and is the most important part of the entire printer system. The performance of the control system directly influences the speed, precision and quality of the printer. An inkjet printer control system is proposed in this paper based on embedded technology. This system uses the embedded Huaheng HHARM2410-Integration-R2 development board as the core of the control system and adopts the network to transmit the printing data, which can achieve high speed, high DPI and the stabilization of motor moving and other good performance for the system. At the same time, the powerful network of uClinux is used with functions of control and accessing from long-distance through the Web server in the embedded digital printer. By this server, users can set up and receive data of the embedded system and carry out maintenance and management of the device. The control system is put to practical use and shows advantages such as better stability, lower fault rate, higher printing speed and larger printing area as compared to those of previous generations. Moreover the system has higher resolution and accuracy because of the use of inkjet with higher oscillation frequency.