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首页> 外文会议>International Symposium on Communications, Control and Signal Processing >INVITED PAPER: Smart Configurable Wireless Sensors and Actuators for Industrial Monitoring and Control
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INVITED PAPER: Smart Configurable Wireless Sensors and Actuators for Industrial Monitoring and Control

机译：邀请纸：用于工业监控和控制的智能配置无线传感器和执行器

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摘要

Intelligent wireless sensor-based controls have drawn industry attention on account of reduced costs, better power management, ease in maintenance, and effortless deployment in remote and hard-to-reach areas. They have been successfully deployed in many industrial applications such as Maintenance, monitoring, control, security, etc. This presentation focuses on research that addresses the issues faced by instrumentation systems and predictive maintenance industrial applications and presents a design solution to cater to the issues faced by these applications. Instrumentation systems are either open or closed loop control systems formed using sensors and actuators with the objective of controlling certain parameters, or state of the system. The system elements are always in communication with each other, typically, requiring real-time performance and built-in fault-tolerance for communication/node failure - to return to a safe-state in a deterministic amount of time. Predictive-maintenance involves tracking physical state of equipment or machine, and to take action, if an acceptable or allowed state(s) is violated. Predictive-maintenance applications are not active all the time in Order to conserve energy. The sensors are either periodic or event-based; they wake up, check status and go back to sleep. In case of any violation, they raise an alarm or record the digression. They are very useful in keeping machine downtimes low and help locate the problem before the machine breaks down. Typical systems employ different types of sensors (e.g., position, accelerometers, gyros, etc.) and actuators (e.g., motors) often deployed within the same network, having different capabilities, interfaces, and supporting different protocols for data and communications. Formation of systems from such diverse distributed sensor elements entails versatile control modules, which understand different sensor protocols and utilize them. In addition, the operational challenges are exacerbated when different RF links have to be used to satisfy the requirements of bandwidth, payload, delay, jitter, range, noise immunity and others (including cost) for communication. The Smart Sensor Platform discussed in this presentation is an attempt to develop a generic platform with a "～plug-and-play" capability to support hardware interface, payload and communications needs of multiple inertial and position sensors, and actuators/motors used in instrumentation systems and predictive maintenance applications. Communication is carried out using a RF link (Wi-Fi, Bluetooth, Mote or RFID), in a point-to-point topology. The design also provides means to update operating and monitoring parameters, and thresholds as well as sensor and RF link specific firmware modules ～over-the-air". It is composed of two main components - a sensor-wireless hardware interface and system integration framework, which facilitates the defining of interaction between sensors/actuators based on process needs. The intelligence necessary to process the sensor signals, monitor the functions against defined operational templates, and enable swapping of sensor and RF link re! sides on the micro controller of the hardware interface. A variety of industrial motion sensors like gyroscopes, Inertial Measurement Units (IMU), linear position sensors, absolute and incremental encoders and Brush less DC motors, have been interfaced and successfully tested with the platform.
机译：基于智能无线传感器的控制根据成本降低，更好的电源管理，维护方便，轻松部署，在远程和难以达到的地区轻松部署，智能无线传感器的控制。它们已成功部署在许多工业应用中，例如维护，监控，控制，安全等。本演示文稿侧重于解决仪表系统和预测维护工业应用面临的问题，并提出了一种设计解决方案，以满足面临的问题通过这些应用程序。仪表系统是使用传感器和致动器形成的打开或闭环控制系统，其目的是控制某些参数或系统状态。系统元件始终彼此通信，通常需要实时性能和用于通信/节点故障的内置容错 - 以确定的时间量返回安全状态。预测 - 维护涉及跟踪设备或机器的物理状态，并且如果违反可接受或允许的状态，则采取行动。预测 - 维护应用程序一直没有激活，以节省能量。传感器是周期性的或基于事件的;他们醒来，检查状态并返回睡眠状态。如果有任何违规行为，它们会引发闹钟或记录题为。它们对于保持机器下降的机器低并且帮助在机器崩溃之前找到问题非常有用。典型系统采用不同类型的传感器（例如，位置，加速度计，陀螺仪等）和致动器（例如，电动机）经常部署在同一网络内，具有不同的能力，接口和支持数据和通信的不同协议。从这种不同分布式传感器元件的形成需要多功能控制模块，了解不同的传感器协议并利用它们。此外，当不同的RF链路必须用于满足带宽，有效载荷，延迟，抖动，范围，噪声豁免等要求，噪声豁免等（包括成本）进行通信时，运行挑战加剧。本演示中讨论的智能传感器平台是一种尝试开发一个具有“〜即插即用”功能的通用平台，以支持硬件接口，有效载荷和多个惯性和位置传感器的通信需求，以及仪器中使用的执行器/电机系统和预测维护应用。在点对点拓扑中使用RF链路（Wi-Fi，蓝牙，Mote或RFID）进行通信。该设计还提供了更新操作和监控参数的方法，以及阈值以及传感器和RF链路特定固件模块〜空中的。它由两个主要组件组成 - 传感器无线硬件接口和系统集成框架这有利于根据过程需求来定义传感器/执行器之间的相互作用。处理传感器信号所需的智能，监控针对定义的操作模板的功能，并使传感器和RF链路重新转换为微控制器上的侧面硬件界面。各种工业运动传感器如陀螺仪，惯性测量单元（IMU），线性位置传感器，绝对和增量编码器和刷子较少的直流电机，并成功地使用平台进行测试。

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