Real-time Alarm Dissemination in Mobile Industrial Networks

C. Sauer, Eike Lyczkowski, M. Sliskovic, M. Schmidt
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引用次数: 1

Abstract

More and more mobile robots are used within modern production facilities. The interconnection of these robots and their connection to other systems is a major focus, when looking at trends like Industry 4.0. However, industrial environments are very challenging for any communications network, that utilizes wireless transmissions. High mobility, changing propagation channels, interference and highly utilized bandwidth are common occurrences. The dissemination of real-time alarm messages to mobile clients of an industrial network is a challenging use case under these circumstances.The often requested real-time guarantee for message delivery cannot be given in such a dynamic and unpredictable environment. Real-Time Alarm Dissemination System (RTADS) is implemented, which offers the following compromise: It can either transmit the message within a guaranteed time-slot or, inform the receiver, that the real-time connection is lost within the same time-slot. The system is additionally able to implement such connection in complex multi-hop networks with minimal impact on other communication.The RTADS was implemented and tested in different environments. Successful alarm transmissions within 100ms for up to 10 re-transmissions/relays were observed.
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移动工业网络中的实时报警传播
在现代生产设施中越来越多地使用移动式机器人。在考虑工业4.0等趋势时,这些机器人的互连及其与其他系统的连接是一个主要焦点。然而,工业环境对任何利用无线传输的通信网络都是非常具有挑战性的。高移动性、不断变化的传播信道、干扰和高度利用的带宽是常见的现象。在这种情况下,将实时报警消息传播到工业网络的移动客户端是一个具有挑战性的用例。在这种动态和不可预测的环境中,无法提供通常要求的消息传递的实时保证。RTADS (Real-Time Alarm Dissemination System)是一种实时报警传播系统,它提供了以下折衷方案:它可以在保证的时隙内发送消息,也可以在同一时隙内通知接收方实时连接丢失。该系统还能够在对其他通信的影响最小的情况下在复杂的多跳网络中实现这种连接。RTADS在不同的环境中实现和测试。观察到在100毫秒内成功发送警报,最多可重新发送10次/中继。
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