Abstract:
In some examples, a battery management system (BMS) includes a set of battery cells and a secondary network node coupled to the set of battery cells. The secondary network node is configured to, responsive to determination by the secondary network node of an exception event, wirelessly transmit a series of periodically repeating reverse wake up data frames to a primary network node. The secondary network node is also configured to, responsive to receipt of a synchronization frame from the primary network node after transmitting the series of reverse wake up data frames, transmit an uplink data frame to the primary network node.
Abstract:
In an example, a method includes broadcasting advertising packets from a broadcaster BLUETOOTH device, where the advertising packets include one or more connection parameters for one or more links in a link cluster. The method also includes receiving, at the broadcaster BLUETOOTH device, a link cluster coordination request from a scanner BLUETOOTH device, where the link cluster coordination request includes one or more connection parameters for a link in the link cluster.
Abstract:
A method includes determining by a primary node a network formation process to establish a network with a secondary node according to a network condition of the primary node and the secondary node, the secondary node previously paired to the primary node in a previously established network connection between the primary node and the secondary node, performing by the primary node a scanning phase as part of the network formation process with the secondary node according to network configuration information stored by the primary node and the secondary node and obtained by the primary node and the secondary node in the previously established network connection; and skipping by the primary node a pairing phase of the network formation process with the secondary node responsive to the secondary node being previously paired to the primary node in the previously established network connection.
Abstract:
In an example, a method includes transmitting a plurality of wake-up frames on a transmission channel from a first node having a first priority. The method also includes pausing the wake-up frames from the first node and listening to the transmission channel after a predetermined number of wake-up frames are transmitted from the first node. The method also includes receiving, at the first node, a wake-up frame from a second node on the transmission channel, wherein the second node has a second priority.
Abstract:
In an example, a method includes receiving, in a first super frame, a first downlink on a first channel from a wireless master node at a wireless device in a WBMS, where the first downlink indicates a second channel assigned to the wireless device. The method includes transmitting, in the first super frame, a synchronization frame from the wireless device to an unsynchronized wireless device on the second channel, where the synchronization frame indicates a third channel. The method also includes receiving, in the first super frame, the synchronization frame at the unsynchronized wireless device on the second channel. The method includes transmitting, on the third channel in a second super frame after the first super frame, an uplink from the unsynchronized wireless device to the wireless master node.
Abstract:
A communication circuit for communications between a controller and a subsystem with a monitored electrical component is described. The communication circuit includes network formation circuitry configured to establish a wireless network between a primary wireless node adapted to be coupled to the controller and a secondary wireless node coupled to the subsystem. The communication circuit also includes data transfer circuitry configured to perform data transfers between the primary wireless node and the secondary wireless node. The communication circuit further includes data integrity circuitry configured to: generate a hash for data received by the communication circuit; and verify the hash before the data transfer circuitry performs a data transfer of the data between the primary wireless node and the secondary wireless node.
Abstract:
An integrated circuit for use in a wireless management system with a primary node and secondary nodes includes: a wireless transceiver; and a wireless management controller included with or coupled to the wireless transceiver. The wireless management controller is configured to: identify a first secondary node of the secondary nodes in communication with the primary node; identify a second secondary node of the secondary nodes not in communication with the primary node; and enable the first secondary node to operate as a proxy node that repeats downlink messages to or uplink messages from the second secondary node.
Abstract:
A system includes a volatile memory and state information management logic. The volatile memory includes a plurality of volatile storage locations. The state information management logic includes memory write tracking circuitry coupled to the volatile memory. The memory write tracking circuitry is configured to identify locations of the memory written subsequent to restoration of state information to the volatile memory on exit of a low-power mode of operation, and to store indicia of the identified locations.
Abstract:
A communication circuit for communications between a controller and a subsystem with a monitored electrical component is described. The communication circuit includes network formation circuitry configured to establish a wireless network between a primary wireless node adapted to be coupled to the controller and a secondary wireless node coupled to the subsystem. The communication circuit also includes data transfer circuitry configured to perform data transfers between the primary wireless node and the secondary wireless node. The communication circuit further includes data integrity circuitry configured to: generate a hash for data received by the communication circuit; and verify the hash before the data transfer circuitry performs a data transfer of the data between the primary wireless node and the secondary wireless node.
Abstract:
A system comprising a controller, a scanner, and a transceiver. The controller is configured to identify a number of channels in which a beacon signal may be wirelessly transmitted. The number of channels is less than a total number of channels available for receiving transmissions. The scanner is configured to scan each of the number of channels for a first beacon signal. The transceiver is configured to receive the first beacon signal from one of the number of channels.