手持式移动学习终端故障模块自修复系统设计

Design of self-repairing system for handheld mobile learning terminal fault module

为有效解决移动学习终端继发故障频繁、稳定耐受程度受限等问题,设计新型手持式移动学习终端故障模块自修复系统。在IOS客户端的支持下,连结修复扩束器、修复调试模块两个主要执行设备,实现新型修复系统的硬件运行环境搭建。通过终端故障分类的方式,满足芯片的选型需求,对修复操作进行编码与解码处理,实现新型修复系统的软件运行环境搭建,结合软、硬件执行需求,完成手持式移动学习终端故障模块的自修复系统设计。对比实验结果显示,与现有修复系统相比,应用新型自修复系统后,移动学习终端继发故障频率降至30%以下,系统综合稳定耐受程度提升明显。

In order to effectively solve the problems of frequent secondary failures and limited stability tolerance of mobile learning terminals,a new self-repairing system of handheld mobile learning terminal failure module is designed. With the support of IOS client,two main executing devices,repair beam expander and repair debugging module,are connected to build the hardware running environment of the new repair system. Through the way of terminal fault classification,to meet the needs of chip selection, the repair operation is coded and decoded,the software environment of the new repair system is built, and the self-repair system of the handheld mobile learning terminal fault module is designed according to the requirements of software and hardware execution. Compared with the existing repair system,the results show that the secondary failure frequency of mobile learning terminal decreases to less than 30% after the application of the new self-repair system,and the comprehensive stability and tolerance of the system are improved significantly.