Schneider Electric Industries Sas

Abb Research Ltd.

Gilles Thonet

Olivier Coutelou

Mogens Mathiesen

Niels Aakvaag

Nicolas Cochard

Patrick Allard-Jacquin

The gateway communication device for wireless communication networks receives messages from a low-power transmitter and communicates with a network. In a system comprising several gateway devices for a low-power transmitter, a master gateway device is defined. Definition of a master gateway device is based on reception quality indicators of the gateway devices situated in said reception zone of messages transmitted by said low-power transmitter. The gateway device having the highest reception quality indicator is selected to be said master gateway device. The communication method also defines a master gateway device in the same way. The master gateway device then selects a backup gateway device to store link tables and in certain cases to act in the place of the master.

Wireless communication device and method, and system comprising such a method

A communication gateway includes a communication unit that transmits and receives messages in order to communicate with at least one remote communication node on a first wireless communication network according to a protocol which includes network access control (MAC), and receives messages originating from at least one transmitter transmitting messages on a second wireless communication network according to a protocol which does not include network access control (MAC). The protocols of the first and second wireless communication networks use a same physical layer (PHY). The communication gateway also includes a processing unit associated with the communication unit that differentiates between the received messages originating from the first wireless communication network and the received messages originating from the second wireless communication network by analyzing header information contained in the received messages originating from the first wireless communication network and in the received messages originating from the second wireless communication network.

Communication gateway between wireless communication networks

A method for controlling an industrial automation device or process including a control unit, at least one actuator, and at least one device arranged for wireless communication with the control unit. The method determines characteristics of the wireless transmissions used to communicate sensor and/or actuator data to the control unit. The method, a system and a graphic interface enable a user to select a control strategy dependent on a value or values of the characteristics of the wireless communications.

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Meylan, France

Gilles Thonet