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分布式控制应用的通信注意事项
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分布式控制应用的通信注意事项
建立和运行分布式智能系统，如灌溉项目和智能物联网建设，必须取得卓越的能力和运营成本之间的平衡-特别是关于努力维持系统所需的努力。较大的分布式网络，更高的复杂性，成本和潜在的干预措施所需的运营商保持系统正确执行。
在本系列的第3部分，我们将看到如何仔细选择通信架构可以避免维护开销成本，同时提供卓越的能力。
随着智能应用程序的增加，他们使用的传感器和执行器的数量也随之增加，以及这些设备之间的连接和通信的复杂性。这种通信的复杂性被进一步放大时，传感器和致动器在地理上彼此相对分布。
In a typical， small-scale irrigation system， all of the necessary processing is centralized in a single control unit that relies on a local timer function， an irrigation scheduler， and switches to deliver power to valve solenoids that control the flow of water through the subsections of the system. The user is responsible for making sure the system is operating correctly and to make adjustments as needed to ensure its continued efficient operation.
Smart irrigation systems add sensors to offload some or most the responsibility from the user to make the dynamic adjustments necessary to maintain the efficiency of the system， as well as to detect and autonomously respond when faults occur. When the physical area serviced by the irrigation project is more widely distributed， it becomes appropriate to consider more complex communication options that also enable the processing to be distributed throughout the system for the benefit of efficiency， reliability， and cost savings.
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