一款用于暖通空调系统的控制及传输的硬件模块设计

发布时间：2019-03-26 09:40

【摘要】：随着技术的进步，原来分散在楼宇住宅各处的暖通空调的控制器已经可以通过无线网络实现互联互通成为一个完整的系统；另一方面智能电网技术和云技术方兴未艾，将暖通空调的控制系统与这两个技术整合将会打开一个全新的市场。为了实现这个目标，需要开发一款设备，以便支持现有产品与国际互联网的互联互通。这个设备将会把私有无线协议网络中的消息解析，然后重新打包发往互联网上的特定服务器以实现各种高附加值的功能。本文介绍了设备开发过程中硬件设计的相关工作。主要包含产品框图设计，电路原理设计，电源完整性分析及设计，产品设计中碰到的技术问题及解决方法。产品功能框图设计包括元器件的选型，如主控制芯片，外部动态随机存取存储器，以太网驱动芯片等；同时产品还需要能够实现应用现场的软件升级，因此产品功能框图在这方面也有相应的考虑。另外产品功能框图的设计也需要考虑未来几年产品功能增加的要求。电路原理设计完成了整个电路的细节设计，同时包括系统电源功耗估算，并根据系统电源功耗的大小设计电源容量，为了保证系统各芯片正常进入工作状态设计了相应的上电时序，，复位时序。电源完整性设计针对产品开发过程中发现的电源问题，分析产品的电源完整性，最终提高了产品的可靠性。产品设计中还碰到了一些技术问题也一并做了介绍，包括产品静电放电试验失败及解决办法，还有网络通信超时及解决办法。在产品的设计过程中使用了Mathcad，SPICE等设计工具，综合运用蒙特卡罗仿真，电路时域分析和频域分析等多种分析方法，提高了设计质量。
[Abstract]:With the progress of the technology, the controller of the heating and ventilation air-conditioner originally dispersed throughout the building house has been able to realize the interconnection through the wireless network to be a complete system; on the other hand, the intelligent power grid technology and the cloud technology are in the ascendant, The integration of the HVAC control system with the two technologies will open a new market. In order to achieve this, a device needs to be developed to support the interconnection of existing products with the international Internet. This device will parse the messages in the private wireless protocol network and then re-package the specific servers sent to the internet to achieve a variety of high added value functions. This paper introduces the related work of hardware design in the process of equipment development It mainly includes product block diagram design, circuit principle design, power supply integrity analysis and design, technical problems encountered in product design and solution The functional block diagram of the product includes the selection of components, such as the main control chip, the external dynamic random access memory, the Ethernet driving chip, etc. The product also needs to be able to implement the software upgrade on the application site, so the functional block diagram of the product also has the corresponding test in this respect. in addition, that design of the functional block diagram of the product also need to take into account the increase in product function in the next few years The circuit principle is designed to complete the detail design of the whole circuit. At the same time, the power consumption of the system is estimated, and the power supply capacity is designed according to the power consumption of the system power. In order to ensure the normal operation state of each chip of the system, the corresponding upper electric timing and reset are designed The power supply integrity is designed to solve the power problem found in the product development process, analyze the power supply integrity of the product, and finally improve the reliability of the product It also introduces some technical problems in the product design, including the failure and solution of the static discharge test of the product, and the time-out and resolution of network communication. In the process of product design, the design tools such as Mathcad and SPICE are used, and a variety of analytical methods such as Monte-Carlo simulation, time-domain analysis and frequency-domain analysis are used to improve the design.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU831

【共引文献】