摘要:
The present invention relates to a method for controlling transmissions of a batteryless device (1) operating in a wireless network, the method comprising the following steps: the batteryless device (1) transmitting a frame including elements for controlling operation of a remote device (2a), or controlled device, the batteryless device being configured with a predetermined number of planned retransmissions of the control frame, the batteryless device sensing a change in the physical phenomenon induced by operation of the controlled device (2a), the batteryless device determining, based on the sensing step, the success or failure of the frame transmission, in case the transmission has succeeded, the batteryless device omitting further retransmissions of the control frame. The present invention also relates to a batteryless device carrying out such method.
摘要:
A method for wireless communication in a network comprising a resource-restricted device (ZGPD), at least two proxy devices (ZP1, ZP2) and at least one destination device (DD), wherein the method comprises the following steps: the resource-restriced device transmitting a frame to be forwarded to a destination device in the network, said frame containing a unique source identifier of the resource-restricted device, at least one proxy device receiving the frame and identifying the frame as originating from a resource-restricted device, —the proxy device determining the unique source identifier and deriving a group identifier as a known function of the unique source identifier, the group identifier designating a group of devices in the network or a source address, the proxy constructing, from the frame, an appropriate packet to be forwarded, the proxy forwarding the packet by taking into account the group identifier.
摘要:
A method for wireless communication in a network comprising a resource-restricted device (ZGPD), at least two proxy devices (ZP1, ZP2) and at least one destination device (DD), wherein the method comprises the following steps: the resource-restriced device transmitting a frame to be forwarded to a destination device in the network, said frame containing a unique source identifier of the resource-restricted device, at least one proxy device receiving the frame and identifying the frame as originating from a resource-restricted device,—the proxy device determining the unique source identifier and deriving a group identifier as a known function of the unique source identifier, the group identifier designating a group of devices in the network or a source address, the proxy constructing, from the frame, an appropriate packet to be forwarded, the proxy forwarding the packet by taking into account the group identifier.
摘要:
The present invention relates to a method for configuring a network comprising a maintenance entity and a plurality of nodes, the method comprising at the maintenance entity, the steps of: (a) detecting a potential presence in the network of at least one limited node, said limited node being able to receive data only within time periods; (b) determining that an updated network configuration parameter value is required, said network configuration parameter being common to the at least one limited node and to the plurality nodes of the network; (c) postponing a transmission of a signal for updating the network configuration parameter value at the plurality of nodes, based on the detection of the potential presence of the at least one limited node in the network; (d) transmitting a triggering signal for triggering delivery of the updated network configuration parameter value to the limited device; (e) transmitting the signal for updating the updated network configuration parameter value at the plurality of nodes.
摘要:
This invention relates to a method for configuring a limited node in a network, said limited node being able to receive data only within limited reception opportunities, the method comprising at a first node: (a) detecting that an update of a network configuration parameter value for the limited node is required; (b) deciding on whether to change a limited node behavior from a first behavior based at least partly on communication characteristics of the limited node, said change of behavior including increasing reception opportunity at the limited node; (c) depending on decision at step (b), triggering delivery of a request of behavior change to the limited node during a first reception opportunity; (d) triggering delivery of the updated network configuration parameter value to the limited node during a second reception opportunity of the limited node.
摘要:
An electro-mechanical energy harvesting switch configured to provide at least two different control signals comprises: a generator activating member (9) configured to move between a rest position and a maximum loaded position; at least one spring (11, 13) configured to force the generator activating member towards the rest position; and a unidirectionally rotating protrusion member (17) comprising at least one protrusion (21) configured to move through a protrusion's path during rotation of the protrusion member (17), through a first position of the protrusion (21), in which first position the protrusion (21) is engaged with the generator activating member (9) in the rest position, and through a second position, the protrusion (21) thereby carrying the generator activating member (9) from the rest position to the maximum loaded position against the force of the at least one spring (11, 13).
摘要:
An electro-mechanical energy harvesting switch configured to provide at least two different control signals comprises: a generator activating member (9) configured to move between a rest position and a maximum loaded position; at least one spring (11, 13) configured to force the generator activating member towards the rest position; and a unidirectionally rotating protrusion member (17) comprising at least one protrusion (21) configured to move through a protrusion's path during rotation of the protrusion member (17), through a first position of the protrusion (21), in which first position the protrusion (21) is engaged with the generator activating member (9) in the rest position, and through a second position, the protrusion (21) thereby carrying the generator activating member (9) from the rest position to the maximum loaded position against the force of the at least one spring (11, 13).
摘要:
This invention relates to a method for configuring a limited node in a network, said limited node being able to receive data only within limited reception opportunities, the method comprising at a first node: (a) detecting that an update of a network configuration parameter value for the limited node is required; (b) deciding on whether to change a limited node behaviour from a first behaviour based at least partly on communication characteristics of the limited node, said change of behaviour including increasing reception opportunity at the limited node; (c) depending on decision at step (b), triggering delivery of a request of behaviour change to the limited node during a first reception opportunity; (d) triggering delivery of the updated network configuration parameter value to the limited node during a second reception opportunity of the limited node.
摘要:
The present invention relates to a method for determining an operational channel c_op of a communication network comprising at least two potential proxies for an energy-restricted device to join the network, and a set C of radio channels, wherein an energy-restricted device is to join the network, the method comprising the following steps: —the energy-restricted device transmitting a first beacon message on a first channel succ(m−1)(c)in MAC broadcast, wherein c belongs to the set C, and switching to receiving mode on channel listen(c), wherein succ and listen is an arithmetical function, from C to C, and m is a positive integer, —the proxies receiving the beacon message sent on channel succ(m−1)(c), —the temporary master device switching its radio receiver to channel succm(c), —the energy-restricted device transmitting a second beacon message on a second channel succ(c) and switching to receiving mode on channel listen (succm(c)), —upon receipt of the second beacon, the temporary master device transmitting a response on a channel listen listen(succm(c)), 20 —the energy-restricted device receiving the beacon response on a channel listen listen(succm(c)), determining that c=c_op. The invention also relates to an energy-restricted device and a proxy device therefor.
摘要:
The present invention relates to a method for configuring a network comprising a maintenance entity and a plurality of nodes, the method comprising at the maintenance entity, the steps of: (a) detecting a potential presence in the network of at least one limited node, said limited node being able to receive data only within time periods; (b) determining that an updated network configuration parameter value is required, said network configuration parameter being common to the at least one limited node and to the plurality nodes of the network; (c) postponing a transmission of a signal for updating the network configuration parameter value at the plurality of nodes, based on the detection of the potential presence of the at least one limited node in the network; (d) transmitting a triggering signal for triggering delivery of the updated network configuration parameter value to the limited device; (e) transmitting the signal for updating the updated network configuration parameter value at the plurality of nodes.