除雪车预湿撒布系统控制器

Pre-wet Spreading System Controller of Snow Removal Vehicle

作者: 专业:机械电子工程 导师:张元良 年度:2010 学位:硕士  院校: 大连理工大学

Keywords

Snow Removal Vehicle, Spreading System, MCU, Electro-hydraulic Control

        为了保证公路安全和畅通的行车环境,减轻或防止路面积雪造成的行车影响及危害,冬季除雪防滑成为公路养护工作的一项重要工作。因此,研制一种除雪效率高、成本低、污染小的多功能除雪车就越来越受人们的重视。所研制的预湿撒布系统控制器安装在多功能除雪车上,能够通过对液压机构的电液控制来实现智能化、精确化、高效率的撒布操作。因此,本控制器的研制对于研制新型多功能除雪车具有重要作用。预湿撒布系统控制器采用全新的控制结构,使除雪车能够利用车速导航,进行无级调速和自动控制,而且本控制器还具有预湿撒布功能,让撒布作业简单、节约、环保。本控制器由两部分组成,分别是放在司机驾驶室里的中心处理器和放在车体后部的信号处理器,都以单片机MSP430F167为核心部件组成硬件系统,软件编程采用C430语言。中心处理器主要是实现对信号处理器进行控制、显示、报警指示;信号处理器主要是实现对传感器信号的采集、处理、运算和控制信号输出,从而驱动液压机构完成撒布操作。中心处理器和信号处理器之间采用RS485接口进行通信。本控制器已经投入使用,无论从系统的处理速度还是系统控制精度上来看效果都很好。实验表明,安装有预湿撒布系统控制器的除雪车能够让资源的使用率明显提高,且控制器价格低廉、使用方便,预计会有很广阔的市场前景。
    In order to ensure the safe and unimpeded driving environment, and prevent or reduce the influence and harm which cryoconite cover on the road cause, snow cleaning and slip avoiding in winter become an important task of the motorway maintenance. Therefore, developing a kind of multi-purpose snow cleaning vehicle which is high efficiency, low cost, less pollution is increasingly essential. The controller of pre-wet spreading system is installed on the multi-purpose snow cleaning vehicle, could achieve intelligent, precise, high-efficiency spreading operation through the hydraulic mechanism of control. This shows that the development of the controller is playing an important role in produceing multi-purpose snow cleaning vehicle.The controller of pre-wet spreading system which is developed in this article with a novel control structure, so that the snow removal vehicles can utilize speed navigation system, which carry out the CVT(Continuosusly Variable Transmission) and automation, additionally the controller also has a pre-wet spreading feature that makes spreading operation easy, more conservation and environmental protection. The controller is composed of two parts:one is central processor which places in the driver cab, the other is signal processor which places in the latter part of the vehicle. The MCU MSP430F167 is used as a core component in the two parts with the help of software programmed in C430 language. the central processor is to achieve the function of controlling the signal processor, displaying and the warning instruction, while the signal processor takes the charge of the sensor signals in the acquisition, processing, computing and control signals output to drive hydraulic mechanism and complete spreading operation. The central processor and the signal processor communicate with each other by RS485 interface.The controller has been put into use. It good practicability has been determined in respects of the processing speed and the control accuracy. The results prove that the snow removal vehicle which installs a spreading system controller could increase the utilization of resources-significantly, what’s more, the controller is inexpensive, easy to use, and it is expected to have a promising market.
        

除雪车预湿撒布系统控制器

摘要4-5
Abstract5
1 绪论8-11
    1.1 引言8
    1.2 国内外现状及发展趋势8-9
        1.2.1 国内外除雪设备的研究现状8-9
        1.2.2 除雪设备的发展趋势9
    1.3 本文的主要研究内容9-11
2 总体方案设计11-14
    2.1 预湿撒布系统简介11
    2.2 控制器总体方案设计11-12
    2.3 信号处理器方案设计12-13
    2.4 中心处理器方案设计13-14
3 控制器硬件电路的设计14-38
    3.1 硬件总体结构设计14-17
    3.2 信号处理器硬件电路设计17-31
        3.2.1 信号采集17-20
        3.2.2 信号处理20-22
        3.2.3 信号输出22-26
        3.2.4 通信电路设计26-28
        3.2.5 电源电路设计28-31
    3.3 中心处理器硬件电路设计31-38
        3.3.1 人机通道31-34
        3.3.2 时钟电路设计34-35
        3.3.3 存储电路设计35-37
        3.3.4 电源电路设计37-38
4 控制器的控制原理和功能实现38-43
    4.1 预湿撒布原理及实现39-40
        4.1.1 预湿撒布原理39-40
        4.1.2 预湿撒布的实现40
    4.2 车速导航原理及实现40-43
5 控制器的软件设计43-52
    5.1 软件设计思想43
    5.2 控制器软件结构43-44
    5.3 中心处理器软件设计44-50
        5.3.1 主程序设计44-45
        5.3.2 撒布操作程序模块设计45-46
        5.3.3 设定/校验程序模块设计46-48
        5.3.4 串行通信模块设计48-50
    5.4 信号处理器软件设计50-52
6 系统可靠性及抗干扰研究52-53
    6.1 硬件抗干扰52
    6.2 软件抗干扰52-53
7 控制器调试53-57
    7.1 实验室调试54-55
    7.2 工厂现场调试55-57
结论57-58
参考文献58-60
附录A 中心处理器电路原理图60-61
附录B 信号处理器电路原理图61-62
附录C 控制器面板设计图62-63
附录D 控制器实物图——信号处理器电路板63-64
附录E 控制器实物图——中心处理器电路板64-65
附录F 控制器实物图65-66
攻读硕士学位期间发表学术论文情况66-67
致谢67-69
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