毕业设计（论文）-基于CAN总线斗式计量控制器的设计精选.doc

摘 要 基于CAN总线斗式计量控制器的设计。玻璃厂称重配料自动控制系统的主要目标是根据原料配料的工艺要求，将颗粒状或粉状原料经称量、混合等工序 ，配制为成份、水分合格的混合料并送入熔窑料仓。控制器主要由单片机、传感器、上位机等元件构成。主要工作原理为通过传送带向量斗运送物料，量斗下方设有3个称重传感器，称重传感器通过测量的原料的重量信号转换为电信号，单片机接受通过A/D转换芯片转换的信号进行处理，如果称重的数值快要接近给定的数值，单片机发出控制指令对量斗下方的震荡装置进行控制使，置震荡的速度变慢，减少原料的投放速度直至称重数值达到设定的数值。并采用CAN 总线技术具有实时性强、传输距离较远、抗电磁干扰能力强、，通用性好，抗干扰性能强，造价降低。非常试用于工业称重自动控制系统。 关键字： 单片机、传感器、CAN总线 Abstract Design of bucket measurement controller based on CAN bus. Glass factory weighing batching control system the main goal is according to the process requirements of raw materials, the granular or powdery raw material through the processes of weighing, mixing, preparation for composition, water qualified mixture and fed into the furnace hopper. The controller is composed of the components such as single chip microcomputer, sensor, PC and so on.. Main working principle is through the conveyor belt vector bucket to transport material, bucket below with three weighing sensor, weighing sensor through the measurement of raw materials with the weight signal conversion into electrical signals, the microcontroller to accept through the A / D converter of signal processing, if weighing numerical going close to the given value, the SCM sends out a control instruction on bucket below the concussion device control, set of shock speed slows, reduce raw material delivery speed until weighing value reaches the set value. CAN bus technology has strong real-time, transmission distance, anti-interference ability, and good versatility, anti-interference performance is strong, the cost is reduced. Test on the automatic control system of industrial weighing. Key words： Microcontroller, sensor, CAN bus 目 录 摘 要 i Abstract ii 第 1 章 绪 论 1 1.1 课题背景及意义 1 1.2 玻璃生产流程 2 1.3 玻璃配料工业现状 3 第 2 章 斗式计量控制系器总体设计 5 2.1 计量控制器的工作原理 5 图2-1.1 量斗结构示意图 6 2.2 玻璃控制器总体框图 7 第 3 章 系统硬件设计 8 3.1 单片机系统 8 3.1.1 单片机的选择及介绍 8 3.2 传感器系统设计与选型 17 3.2.1 称重传感器技术 17 3.3 称重测量模块设计 19 3.3.1 称重传感器分析与设计 19 3.3.2 电阻应变式传感器工作原理 19 3.4 中断系统 20 3.4.1 MCUz中断源和中断向量 21 3.4