A file transfer method and an electronic device are provided, and relate to the field of communications technologies, to avoid file mis-transfer and improve file transfer accuracy. The method includes: displaying, by a first device, a first interface, namely, a graphical user interface of a first application (S301); when a distance between a first NFC chip and an electronic tag or a second NFC chip of a second device is less than a preset threshold, obtaining a Bluetooth address of the second device (S303); determining that the first device is currently in a first scenario (S308); receiving a second scenario in which the second device is currently located and that is notified by the second device (S311); and when a priority of the first scenario is higher than that of the second scenario, transferring a first file corresponding to the first interface to the second device through a communication connection established based on the Bluetooth address (S312 and S313); or when a priority of the first scenario is lower than that of the second scenario, receiving a second file that corresponds to a second interface and that is sent by the second device through a communication connection established based on the Bluetooth address (S316).

A system may include a first device that has a first network component and a second device that has a second network component. The second network component may receive a data packet from the first network component based at least in part on a network address, where the network address is generated based at least in part on a location of the first device.

A method for managing Internet Protocol Version 6 (IPv6) addresses in a wireless sensor network is provided that includes storing, on a wireless sensor device in the wireless sensor network, a prefix of an IPv6 address in association with a key, forming an address indicator for the IPv6 address, the address indicator consisting of the key and a node address of the IPv6 address, and storing the address indicator in at least one memory location on the wireless sensor device in lieu of the IPv6 address.

To improve the accuracy of a trigger-based commissioning in a high dense network without leveraging an optical link, a separate beacon tag (400) is employed to assist the commissioning procedure between a node (200) and a commissioning device (300). A trigger event is detected at the node (200) side when its local identification number is equal to the identification number comprised in a second type of beacon received from the beacon tag (400), and the proximity of the beacon tag (400) is determined to be below a local threshold. Upon the detection of such a trigger event, the node (200) updates its first type of beacons to notify the commissioning device 300 about the trigger event. And then, the commissioning device (300) confirms the trigger event and sends a request for commissioning to the node (200).

The invention relates to the monitoring of products by means of active radio tags. According to the invention, packagings of products are provided with an active radio tag that detects at least one environmental condition and/or at least one packaging state, and which emits a signal at time intervals, which provides information about a unique identifier and at least one state in which the respective product is found. The signal is picked up by a receiver that extracts the unique identifier and the state information and transmits same together with location information to an external server.

The invention relates to the monitoring of products by means of active radio tags. According to the invention, packagings of products are provided with an active radio tag that detects at least one environmental condition and/or at least one packaging state, and which emits a signal at time intervals, which provides information about a unique identifier and at least one state in which the respective product is found. The signal is picked up by a receiver that extracts the unique identifier and the state information and transmits same together with location information to an external server.

The invention relates to the monitoring of products by means of active radio tags. According to the invention, packagings of products are provided with an active radio tag that detects at least one environmental condition and/or at least one packaging state, and which emits a signal at time intervals, which provides information about a unique identifier and at least one state in which the respective product is found. The signal is picked up by a receiver that extracts the unique identifier and the state information and transmits same together with location information to an external server.

A method of and network devices arranged for inquiring node device address information after commissioning of a network of communicatively interconnected node devices. A gateway device (2) broadcasts an inquiry message (M.sub.INQ) in the network, requesting each of the node devices (3, 4, 5) to transmit its node device address announce message (M.sub.ANN), after a time delay (Δ.sub.t1; Δ.sub.t.2) from receiving the inquiry message (M.sub.INQ). The gateway device (2) transmits an acknowledgement message (M.sub.ACK) to the node device addressed in a received node device address announce message (M.sub.ANN), indicating that the respective node device address announce message (M.sub.ANN) is received by the gateway device (2). A node device (4) may retransmit its node device address announce message (M.sub.ANN) until receipt of an acknowledgement message (M.sub.ACK). Received address information is stored by the gateway device (2) for control and communication purposes of the nodes in the network.

Connected tractor and trailer identifications and the order of hook-up of multiple trailers to a tractor is are determined by identifying trailer VINs using a PLC system and eliminating Bluetooth signals that do not broadcast trailer VINs that match the PLC system. A tractor-based Bluetooth trailer order and a trailer-based Bluetooth trailer order utilizing RSSI value strengths are determined. The trailer order is set if the tractor-based Bluetooth trailer order matches the trailer-based Bluetooth order. If the order does not match, a RSSI value weighting process is used to choose between the tractor-based order and the trailer-based order.

In embodiments of efficient network stack for wireless application protocols, a network stack receives an application-layer message in a first wireless application protocol that includes a source address and a destination address, maps the source address to an Internet Protocol version 6 (IPv6) source address, and maps the destination address to an IPv6 source address. The source node transmits the application-layer message to a destination node in a mesh network using a network stack that implements a second wireless application protocol using the IPv6 source address, and maps the destination address to an IPv6 source address.