登录

  • 登录
  • 忘记密码?点击找回

注册

  • 获取手机验证码 60
  • 注册

找回密码

  • 获取手机验证码60
  • 找回
毕业论文网 > 毕业论文 > 理工学类 > 自动化 > 正文

电动巴哈越野车数据采集与无线传输系统设计毕业论文

 2021-11-08 21:25:38  

摘 要

随着人们生活水平的提高,汽车保有量持续增加,为保护环境多地政府采取相应措施,如限号出行,建设地铁,新能源汽车补贴等。新能源汽车保有量也在迅速、持续增长。我国新能源汽车与发达国家相比仍存在一定差距。因此对车辆运行过程中的关键数据进行实时采集,实现远程监控,将所得数据进行分析,对后续车辆的提升、完善具有重要意义。此外随着共享汽车的不断扩展,对共享汽车的实时监控系统要求也愈来愈高,因此,开发一套性能稳定,扩展性强的数据采集与无线传输系统具有极其重要的意义。

本文以中国汽车工程学会电巴哈赛车为例,设计出一套可以对电源状态,车辆姿态等行进信息进行实时监控,并实现实时定位跟踪。具体内容如下:

(1)根据实际需求,设计系统总体方案。系统主要分为两大模块,数据采集模块与数据通信模块。整个系统以STM32单片机为核心,对现有CAN总线数据进行采集,配以传感器单元、GPS模块对其他数据进行采集,使用4G通信模块,将所有数据通过通信模块打包发送至上位机,在上位机实现打印显示等功能。

(2)实现系统所需硬件选型,完成硬件底层开发并对各模块进行测试。包括STM32F103ZET6单片机的USART接口,ADC接口,CAN总线接口,I2C接口,4G通信模块的测试。实现硬件电路集成。

(3)完成嵌入式系统的软件开发,在KeilμVision5环境下,使用C语言对传感器单元数据采集,CAN总线数据接收等功能进行开发。

(4)与上位机建立网络连接,将数据打包发送,上位机接收数据后解析并显示。

该系统可根据不同需求,在传感器单元添加/更换对应传感器,因此系统具备高灵活性、可扩展性以及实用性。由于采用无线传输技术,在与上位机通信过程中无需布线,对于运动过程中实时的数据采集与监测是一种很好的解决方案。

关键词:新能源汽车;嵌入式;传感器单元;无线数据传输;车联网

Abstract

With the improvement of people's living standards and the continuous increase of car ownership, many governments take corresponding measures to protect the environment, such as limited number travel, construction of subway, new energy vehicle subsidies, etc. The number of new energy vehicles is also growing rapidly and continuously. As a rising star, China's new energy vehicles still have a certain gap compared with western developed countries. Therefore, it is of great significance to collect key data in real time, realize remote monitoring and analyze the data obtained in the process of vehicle operation, so as to improve and perfect the follow-up vehicles. In addition, with the continuous expansion of the shared car, the requirements of the real-time monitoring system of the shared car are becoming higher and higher. Therefore, it is of great significance to develop a set of data detection and wireless transmission system with stable performance and strong scalability.

In this thesis, taking the electric BAHA racing car China Society of automotive engineering as an example, a set of real-time monitoring system is designed to monitor the power status, vehicle attitude and other moving information, and realize real-time positioning and tracking. The details are as follows:

(1) According to the actual needs, design the overall scheme of the system. The system is mainly divided into two modules, data acquisition module and data communication module. The whole system takes STM32 single-chip microcomputer as the core to collect the existing can bus data, and with the required sensor unit and GPS module to collect other data. Using 4G communication module, all the data is packaged and sent to the upper computer through the communication module, and the printing and display functions are realized in the upper computer.

(2) To achieve the hardware selection required by the system, complete the hardware bottom development and test each module. Including the test of USART interface, ADC interface, can bus interface, I2C interface and 4G communication module of stm32f103zet6 single chip microcomputer. Realize hardware circuit integration.

(3) Complete the software development of the embedded system, in the Keil μ vision 5 environment, use C language to develop the functions of sensor unit data detection, can bus data reception, etc.

(4) Establish UDP connection with the upper computer, package and send the data, and the upper computer analyzes and displays the data after receiving it.

The system can add / replace corresponding sensors in the sensor unit according to different requirements, so the system has high flexibility, scalability and practicability. Because of the wireless transmission technology, there is no need for wiring in the process of communication with the upper computer, which is a good solution for real-time data acquisition and monitoring in the process of motion.

Key words: new energy vehicle; embedded; sensor unit; wireless data transmission; Internet of vehicles

目 录

1.1 选题背景与研究意义 1

1.1.1 选题背景1 1

1.1.2 研究意义 1

1.2 新能源汽车数据采集国内外研究现状 1

1.2.1 新能源汽车数据采集国外研究现状 3

1.2.2 新能源汽车数据采集国内研究现状 4

1.3本文主要研究内容 5

第2章 系统总体方案设计 5

2.1 系统需求分析 5

2.2 系统方案设计 6

2.3 本章小结 7

第3章 系统硬件选型及集成方案 8

3.1 系统CPU选型 8

3.2 CAN通信硬件电路 9

3.3 ADC电压采集电路 10

3.3.1 悬臂行程测量 10

3.3.2 车架振动测量 12

3.4 九轴imu传感器电路 13

3.5 GPS与数据通讯电路 14

3.6 本章小结 16

第4章 系统软件开发 17

4.1 系统软件架构设计 17

4.2 CAN通信软件设计 18

4.3 8路ADC软件设计 20

4.4 九轴imu软件设计 21

4.5 4G通信模块软件设计 22

4.6 本章小结 24

第5章 系统测试 25

5.1 测试环境搭建 25

5.2 设备功能测试 25

5.3 测试结果分析 26

第6章 总结与展望 27

6.1 总结 27

6.2 展望 27

参考文献 28

致 谢 30

第1章 引言

1.1 选题背景与研究意义

1.1.1 选题背景1

工业发展与环境保护之间的矛盾是人类与自然之间长久留存的问题,由此引发

的能源危机也愈发严重。在能源、环境日益危机的情况下,继续我们做出有效措施。对此国家在“十一五”期间提出了节能减排政策,而汽车正是造成环境污染的主要原因之一。随着汽车产业的发展,我国温室气体排放量已达全球第二。对此大力发展新能源汽车,是节约能源。保护环境的有效措施之一[1]

新世纪以来我国尤为注重可持续发展,新能源汽车的销量在汽车市场中占比逐年递增,这与我国接连出台的鼓励政策密不可分,截止到2016年6月,共出台30项新能源汽车相关政策,我国相关产业进入加速发展阶段[2]

目前对于新能源汽车的相关数据测量以及性能测试,大多在实验室中使用对应设备测量,由于室内条件有限,测试结果与真实行进中的数据存在偏差,而且设备造价昂贵,研发过程对经费要求较高[3]

设计一套可以在行进过程中对车辆数据进行动态测量的数据采集系统,对于新能源汽车的测试,改进都显得异常重要。该系统可以采集多种参数,如电源电压,输出电流,行进过程中的姿态,地理位置等,这些行进过程中的参数可以很好地作为后续改进分析的基础。

您需要先支付 50元 才能查看全部内容!立即支付

微信号:bysjorg

Copyright © 2010-2022 毕业论文网 站点地图