新型蚕种催青测控系统设计

发布时间：2019-02-23 16:59

【摘要】：随着丝绸产品的流行,丝绸业的发展势头良好,养蚕为众多企业和农户带来可观的收入。现在,国内的养蚕业已经进入社会化大生产阶段,实行催青企业集中统一催青,待蚕种转青后发给蚕农,蚕农负责饲养桑蚕,待蚕化蛹后将茧卖给企业,最后由企业负责再加工的商业模式。催青是桑蚕养殖的第一阶段,其决定了蚕卵的活化率、齐整度,幼蚕的免疫力,以及蚕的发病率、成活率,因此,蚕种催青在整个养蚕周期中起着决定性的作用。蚕种催青时,需要根据蚕种活化的程度、孵化齐整度、以及预期孵化结束时间,调控催青室内的温湿度状态,保证蚕卵能够正常活化,在特殊情况下,需要人为地加速或者抑制蚕卵的活化进度。针对蚕种催青工作,顺应企业用户的应用需求,本文设计了一款新型的蚕种催青测控系统,其采用较新的硬件资源,以液晶屏为人机交互界面,具有远程监控功能,使用模糊PID控制算法,其能够达到用户对温湿度控制的精度要求,能够有效地满足蚕种催青工作的需求。本文主要针对蚕种催青测控系统进行研究和设计,研究内容包括:(1)确定系统方案:研究蚕种催青的工作流程,分析用户的需求,分析原有测控系统的优缺点,确定系统的设计需求以及注意事项。按照对系统的分析,选取合适的资源,并构造硬件系统。(2)选择并设计控制算法:比较常用控制算法的优缺点,根据控制精度的要求,确定测控系统使用的控制算法。研究控制器的设计要点和注意事项,设计并调试其性能。(3)系统的软件设计:在系统硬件平台的基础上,完成硬件资源底层驱动和应用功能的开发,使各硬件资源协同工作。软件设计的工作可分为:传感器数据的采集和处理、历史数据的存储与提取、与计算机的协同、人机交互界面的设计、控制算法的代码实现。
[Abstract]:With the popularity of silk products, silk industry has a good development momentum, sericulture for many enterprises and farmers to bring considerable income. Now, the domestic sericulture industry has entered the stage of large-scale socialized production, and the enterprises that promote the green have centralized and unified efforts to promote the green. After the silkworm eggs are turned green, the silkworm farmers are issued to the silkworm farmers, who are responsible for raising mulberry silkworms and selling the cocoons to the enterprises after the silkworms are pupated. Finally, the enterprise is responsible for the business model of reprocessing. Promoting green is the first stage of silkworm breeding, which determines the activation rate, evenness degree, immunity of young silkworm, morbidity and survival rate of silkworm. Therefore, promoting green of silkworm seed plays a decisive role in the whole silkworm rearing cycle. In order to ensure normal activation of silkworm eggs, it is necessary to adjust and control the temperature and humidity in the room according to the degree of activation of silkworm eggs, the degree of uniformity of hatching, and the expected end time of hatching, so as to ensure the normal activation of silkworm eggs under special circumstances. The activation of silkworm eggs needs to be artificially accelerated or suppressed. In order to promote the development of silkworm eggs and comply with the application requirements of enterprise users, this paper designs a new type of monitoring and control system for silkworm eggs, which adopts new hardware resources and takes the LCD screen as the man-machine interface. It has the function of remote monitoring and control. The fuzzy PID control algorithm can meet the precision requirement of temperature and humidity control, and can effectively meet the requirements of silkworm eggs. The main contents of this paper are as follows: (1) to determine the project of the system: to study the workflow of silkworm breeding, to analyze the needs of users, and to analyze the advantages and disadvantages of the original measurement and control system. Determine system design requirements and considerations. According to the analysis of the system, select the appropriate resources, and construct the hardware system. (2) choose and design the control algorithm: compare the advantages and disadvantages of the common control algorithm, according to the requirements of the control accuracy, determine the control algorithm used in the measurement and control system. (3) Software design of the system: on the basis of the hardware platform of the system, the driver of hardware resources and the development of the application function are completed, and the main points of the controller design are studied, and the performance of the controller is designed and debugged. (3) Software design of the system. Make the hardware resources work together. Software design can be divided into: sensor data acquisition and processing, historical data storage and extraction, and computer cooperation, human-computer interface design, control algorithm code implementation.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP274;S882

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