RESEARCH ON DEVELOPMENT OF SCIENCE EDUCATION BY UTILIZING ONE-CHIP MICRO CONTROLLERS

在当今时代，电信技术的快速发展带来了其自身的技术黑箱化。介绍性教材对工科学生的教育重要性大大增加。本文介绍了业余无线电卫星遥测数据接收/解码解调器、终端节点控制器和微机软件的设计与开发，以满足广泛应用的同步化、数字化无线电通信和数据传输技术基础教学的需要。利用Micro-chip Technologies Inc.提供的Flash存储器型PIC微控制器PIC 16 F84 A和PIC 16 F628开发了解调器和终端节点控制器。PIC固件采用C语言编写，PC机软件采用C语言编写，便于教学试验。这些硬件和软件使学生能够解码和分析来自业余卫星如UoSAT-2和Pcsat的遥测和全轨道数据。实验结果表明，该教材适合于克服“黑箱化”现象，对学生的学习动机和理解能力的培养效果比以往任何一种教材都要显著。

In the present day, technological rapid advance in telecommunications has brought about its own technological black-box-izing. Educational importance of introductory teaching materials are now greatly increased for engineering students. A demodulator, terminal node controllers and personal computer softwares for receiving/decoding telemetry from amateur radio satellites are designed and developed for teaching technological fundamentals of the widely-used synchronized and asynchronized wireless telecommunication and data transfer. These materials easily and quickly realize various types of hand-on student experiments.The demodulator and terminal node controllers are developed by using PIC16F84A and PIC16F628 which are flash memory types of PIC-micro controllers provided by Micro-chip Technologies Inc. The PIC firmwares are written by C language as well as the PC softwares in order to facilitate educational trials. These hardwares and softwares enable students to decode and analyze telemetry and whole orbit data from amateur satellites such as UoSAT-2 and Pcsat.A student experiment is undertaken to reveal educational effectiveness of the developed hardwares and softwares. It is confirmed that they are suitable for overcoming the black-box-izing, and bring about much more significant effects especially on student's motivation and understanding than any other teaching materials previously used.