公开(公告)号：US12010469B2

公开(公告)日：2024-06-11

申请号：US17264329

申请日：2019-07-23

Applicant: ABB Schweiz AG

Inventor： Deepaknath Tandur ,  Anitha Varghese ,  Aravind Ingalalli ,  Srijit Kumar

IPC: H04L67/12 ,  H04Q9/00 ,  H04W24/08

CPC classification number: H04Q9/00 ,  H04L67/12 ,  H04W24/08 ,  H04Q2209/40

Abstract: Disclosed is a method for remote diagnosis and monitoring of field equipment over an industrial wireless network. A diagnostic unit associated with the field equipment optimizes communication of measured data by a field radio device to a base station. The diagnostic unit is communicatively linked to the field radio device. The measured data is obtained from the field equipment, and a plurality of communication parameters of a communication channel are obtained based on communication from the field radio device. Based on a packet size, a data rate and required application responsiveness, one or more packets comprising the measured data are generated. The generated packets are communicated to the field radio device at selected time intervals based on the packet size, and the application responsiveness, for communication to the base station.

公开(公告)号：US10097299B2

公开(公告)日：2018-10-09

申请号：US15539606

申请日：2015-12-24

Applicant: ABB Schweiz AG

Inventor： Anitha Varghese ,  Mallikarjun Kande ,  Pradnya Gaonkar

IPC: H04J3/06 ,  G05B19/418

Abstract: The present invention provides a method for time synchronizing one or more devices in a control network using a first device. The method comprises selecting a first device from information of the topology of the control network. The method further comprises sending a first set of packets to the second device, receiving a first set of delay requests in response to the first set of packets, and sending a first set of delay responses in response to the first set of delay requests. The method further comprises, determining a first set of forward times and first set of backward times. The method further comprises, determining a first minimum forward time and a first minimum backward time. Further the method comprises determining a first correction factor. The method also comprises, applying the first correction factor to a clock provided at the second device and storing the first correction factor.

公开(公告)号：US10931551B2

公开(公告)日：2021-02-23

申请号：US16427323

申请日：2019-05-30

Applicant: ABB Schweiz AG

Inventor： Deepaknath Tandur ,  Anand Rath ,  Anitha Varghese

IPC: H04L12/26 ,  H04B17/336 ,  G05B19/418 ,  H04W88/16

Abstract: The present disclosure relates to condition monitoring of wireless networks in industrial plant, wherein a wireless network has two or more wired gateways and a plurality of access nodes connected wirelessly with at least one wired gateway. Here, each access node is associated with at least one field device of the industrial plant. The condition monitoring is performed with an industrial device connected with the two or more wired gateways. The condition monitoring comprises periodically receiving information associated with packet transfer, channel access, and connection links for each node of the plurality of access nodes and each wired gateway. One or more parameters are estimated based on the received information, to determine connectivity status of the field devices in the industrial plant. The connectivity status is rendered on a user interface of an industrial device.