在弹体研究中,弹体飞行时间的测定对于研究外弹道特性,求解弹体飞行规律具有一定的意义。测量弹体飞行时间时,传统的有线测试存在着诸多不利,常导致试验无法正常进行,如受地域条件限制无法布线或者布线工作艰难。6545
本论文提出了一种基于主从方式、无线传输的弹体飞行时间测量系统。该系统主要由主机、从机和无线模块构成。在测时中采用单片机脉冲计数法,通过主机和从机计数值之差来获取弹体飞行时间,主机与从机之间的数据通讯依靠无线传输实现。基于以上方法搭建出测试电路系统,并且通过对各个子系统的测试,论证该测试系统具有可行性。
关键词 弹体飞行时间 无线数据传输 主机 从机
毕业设计说明书(论文)外文摘要
Title Projectile’s flight time measurement system based on wireless transmission
Abstract
In the study of the projectile, the measurement of the flight time of the projectile has a significance for the study of the ballistic characteristics and the law of the projectile flight. When measuring the flight time of the projectile, The traditional cable test exist many adverse, often leads to the failure of the test, such as subject to regional restrictions the cabling becomes difficulty.
This thesis presents a projectile’s flight time measurement system based on host-slave way and wireless transmission. The system mainly consists of the host microcontroller, slave microcontroller and wireless modules. Microcontroller pulse count method has been used in the test, and the flight time of the projectile can be test by the difference timing of the host and slave microcontroller. Of course, the data communication of the host and slave microcontroller relies on wireless transmission. Finally the test circuitry has been built Based on the above method ,And through the testing of various subsystems it’s easy to come to the conclusion that the measurement is practicle.
Keywords: Projectile’s flight time, Wireless data transmission, Host microcontroller, Slave microcontroller
目录
1.绪论 1
1.1弹体飞行时间测试的课题背景及意义 1
1.2弹体飞行时间测量的国内外现状及发展趋势 1
1.3 本课题研究的内容 3
2 弹体飞行时间测量的总体方案 4
2.1弹体飞行时间测量系统主要技术指标 4
2.2弹体飞行时间测量的总体方案 4
2.2.1 主要技术指标分析 4
2.2.2 总体设计思路 4
2.2.3 总体设计方案 5
2.3主机系统各子系统设计功能简介 8
2.4本章小结 8
3. 主机系统硬件电路设计 10
3.1 主机系统硬件电路概述 10
3.2 靶信号处理电路 10
3.3单片机电路设计 11
3.4无线数据传输模块电路设计 14
3.5显示电路设计 17
3.6 电源转换电路设计 18
3.7 主机系统整体电路设计 19
3.8主机系统电路调试 19
3.8.1 靶信号处理电路调试 19
3.8.2 单片机外部中断1扩展调试 20
3.9 本章小结 20
4. 主机系统软件设计及调试 22
4.1 软件设计的总体思路 22
4.2主机软件流程图 22
4.3主机软件各子单元的功能 23
4.3.1主机通知从机计数程序 23
4.3.2主机外部中断1扩展程序 24