US 12,379,701 B2
Method for transmitting data between a central control apparatus and a plurality of decentralized devices, and corresponding means
Viktor Oster, Blomberg (DE); and Lutz Rahlves, Tündern (DE)
Assigned to Phoenix Contact GmbH & Co. KG, Blomberg (DE)
Appl. No. 16/641,613
Filed by Phoenix Contact GmbH & Co. KG, Blomberg (DE)
PCT Filed Aug. 22, 2018, PCT No. PCT/EP2018/072679
§ 371(c)(1), (2) Date Feb. 24, 2020,
PCT Pub. No. WO2019/038333, PCT Pub. Date Feb. 28, 2019.
Claims priority of application No. 102017119578.5 (DE), filed on Aug. 25, 2017.
Prior Publication US 2020/0218284 A1, Jul. 9, 2020
Int. Cl. G05B 19/042 (2006.01); H04L 12/403 (2006.01); H04L 43/0823 (2022.01); H04L 43/0852 (2022.01); H04L 43/106 (2022.01); H04L 43/16 (2022.01)
CPC G05B 19/0425 (2013.01) [H04L 12/403 (2013.01); H04L 43/0847 (2013.01); H04L 43/0858 (2013.01); H04L 43/106 (2013.01); H04L 43/16 (2013.01); G05B 2219/50393 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for transmitting data between a central control apparatus and a plurality of decentralized devices, having the following steps:
generating, in the central control apparatus, a data telegram for the multicast transmission of data to a group of the of devices that are located in a defined spatial region, the data telegram comprising identification information that identifies the defined spatial region;
unidirectionally transmitting the data telegram from the central control apparatus to at least one of the decentralized devices of the group, wherein the at least one of the decentralized devices of the group is designed to recognize whether it is currently located in the spatial region identified by the identification information, and wherein the data telegram is transmitted wirelessly from the central control apparatus to the at least one of the decentralized devices of the group;
monitoring the transmission duration of the transmission of the data telegram from the central control apparatus to the at least one of the decentralized devices of the group, wherein the monitoring step is performed with synchronized timers or wherein the monitoring step is performed by the step of establishing a data connection configured for bidirectional communication between the central control apparatus and the at least one of the decentralized devices of the group, the data telegram being transmitted unidirectionally from the central control apparatus to the at least one of the decentralized devices of the group via this data connection; and
triggering a predetermined safety reaction if the transmission duration exceeds a predetermined value.