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

在通信技术突飞猛进的今天，也带来了自身的技术黑箱化。现在，对于工科学生来说，入门教材的教育重要性大大增加。为教授广泛使用的同步和异步无线通信和数据传输的技术基础，设计和开发了一种用于接收/解码业余无线电卫星遥测的解调器、终端节点控制器和个人计算机软件。解调和终端节点控制器是利用Micro-Chip Technologies公司提供的闪存类型的PIC-微控制器PIC16F84A和PIC16F628开发的，PIC固件采用C语言编写，上位机软件也用来方便教学实验。这些硬件和软件使学生能够解码和分析来自UoSAT-2和Pcsat等业余卫星的遥测和全轨数据。通过学生实验，展示了所开发的硬件和软件的教学效果。实践证明，该教材适用于克服黑箱现象，尤其是对学生的学习动机和理解力的影响比以往任何一种教材都要大得多。

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.