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A Kennedy Space Center implementation of IEEE 1451

机译:IEEE 1451的肯尼迪航天中心实施

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To meet the demand for more reliable sensory data, longer sensor calibration cycles, and more useful information for operators at NASA's Kennedy Space Center (KSC), NASA's Instrumentation Branch and ASRC's Advanced Electronics and Technology Development Laboratory at the KSC are developing custom intelligent sensors based on the IEEE 1451 family of smart-sensor standards. The KSC intelligent sensors are known as Smart Networked Elements (SNEs), and each SNE includes transducers and their associated Transducer Electronic Data Sheets (TEDS), signal conditioning, analog-to-digital conversion, software algorithms for performing health checks on the data, and a network connection for sending data to other SNEs and higher-level systems. The development of the SNE has led to the definition of custom architectures, protocols, IEEE 1451 implementations, and TEDS, which are presented in this paper. The IEEE 1451 standards describe the architecture, message formats, software objects, and communication protocols within the smart sensor. Because of the standard's complexity, KSC has simplified the IEEE 1451 architecture and narrowed the scope of software objects to be included in the SNE to create a "light" IEEE 1451 implementation, and has used the manufacturer-defined TEDS to customize the SNE with health indicators. Furthermore, KSC has developed a protocol that allows the SNEs to communicate over an Ethernet network while reducing bandwidth requirements.
机译:为了满足对更可靠的传感数据,更长的传感器校准周期以及对NASA肯尼迪航天中心(KSC)的运营商有用的信息的需求,NASA的仪器分公司和ASSC的KSC的高级电子和技术开发实验室正在开发基于智能传感器的定制产品。符合IEEE 1451系列智能传感器标准。 KSC智能传感器被称为智能网元(SNE),每个SNE都包括传感器及其相关的传感器电子数据表(TEDS),信号调节,模数转换,用于对数据进行运行状况检查的软​​件算法,网络连接,用于将数据发送到其他SNE和更高级别的系统。 SNE的发展导致对自定义体系结构,协议,IEEE 1451实现和TEDS的定义,本文将对此进行介绍。 IEEE 1451标准描述了智能传感器内的体系结构,消息格式,软件对象和通信协议。由于该标准的复杂性,KSC简化了IEEE 1451体系结构,并缩小了SNE中包含的软件对象的范围,以创建“轻型” IEEE 1451实现,并使用制造商定义的TEDS自定义健康的SNE。指标。此外,KSC还开发了一种协议,该协议允许SNE在以太网上进行通信,同时降低带宽需求。

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