A daisy chain two-wire sensor measurement system includes one or more slave modules, a master module and a daisy chain wire. The one or more slave modules are connected to one or more sensors, and configured to modulate a detected sensor signal into the corresponding current signal. The master module is successively cascaded to a first slave module, an upper-stage slave module, and a lower-stage slave module in the one or more slave modules through the daisy chain wire to form a daisy chain sensor network, and interconnected with an upper computer through a communication wire. The daisy chain wire is configured to supply power and transmit the current signal obtained by the slave module through modulation, such that the master module obtains and then decodes the current signal on the daisy chain wire to obtain the corresponding sensor data. A daisy chain two-wire sensor measurement method is further provided.

A serial transmission fan control device comprises a master controller, a first fan controller, and a second controller. The master controller generates a serial control data, wherein the serial control data comprises a plurality of packets concatenated in an order and each of the plurality of packets comprises a control parameter set of a fan. The first fan controller electrically connects to the master controller, receives the serial control data, extracts a packet from the plurality of packets of the serial control data, and sends a first downlink serial data, wherein the first downlink data comprises all of the plurality of packets of the serial control data except for the extracted packet. The second fan controller electrically connects to the first fan controller, receives the first downlink serial data, and extracts a packet from the packets of the first downlink serial data.

A subscriber station for a serial bus system and a method for communicating in a serial bus system. The subscriber station includes a communication control device for controlling a communication of the subscriber station with at least one other subscriber station of the bus system, a transmitting/receiving device for receiving a transmission signal generated by a communication control device of a subscriber station of the bus system in a frame from a bus of the bus system and for generating a reception signal from the received frame, and a connection quality block for detecting and evaluating a quality of a communication connection to a subscriber station of the bus system from the reception signal generated by the transmitting/receiving device by using at least two time quanta, into which the bit time of a bit of the generated reception signal is subdivided.

A chip-carrier package includes a data processing system having one or more slave dies, a master die and a system bus. Each slave die includes a slave device and a slave-side wireless bus interface (WBI) coupled to the slave device. The master die includes a master device, one or more bus-side WBIs coupled to the master device. Each bus-side WBI is configured to be wirelessly coupled to at least one slave-side WBI of the one or more slave dies and a system bus. The system bus includes the one or more bus-side WBIs and the slave-side WBIs of the one or more slave-side dies. The system bus is configured to exchange information between the master device and the slave devices of the one or more slave dies.

A communication apparatus installed on a vehicle as a master apparatus includes: a slave port communicating with an on-vehicle control apparatus; two or more master ports are paired with two or more slave apparatuses installed on the vehicle, and communicate with the two or more slave apparatuses using different channels based on Distributed System Interface (DSI) protocol; two or more buffer memories provided corresponding to the two or more master ports; and a control section sorting and storing commands addressed to the two or more slave apparatuses, respectively, from the on-vehicle control apparatus into the two or more buffer memories, respectively, and when receiving a trigger instructing transmission of the commands from the on-vehicle control apparatus, reading the commands from the two or more buffer memories, and simultaneously transmitting the commands from the two or more master ports, respectively.

A process detects anomalies on a controller area network (CAN) bus. An arbitration field in a message on the CAN bus is analyzed, and a data field in the message on the CAN bus is inspected. The process further monitors a frequency of message identifiers that are transmitted across the CAN bus, and determines that an overall bus load crosses a threshold. The process then transmits an alert when the analyzing the arbitration field, the inspecting the data field, the monitoring the frequency, and the determining the overall bus load indicate that an anomaly has occurred on the CAN bus.

The present disclosure includes a wireless control system, a wireless control method, and a battery pack. The wireless control system includes a master configured to wirelessly transmit a first command packet, and first to N.sup.th slaves to which first to N.sup.th IDs are allocated, respectively. When the first slave receives the first command packet, the first slave wirelessly transmits a first response packet including first battery information and the first ID. When a k+1.sup.th slave receives the first command packet, the k+1.sup.th slave stands by to receive a k.sup.th response packet for a preparation period and wirelessly transmits a k+1.sup.th response packet including k+1.sup.th battery information and a k+1.sup.th ID. When the k.sup.th response packet is received by the k+1.sup.th slave within the preparation period, the k+1.sup.th response packet further includes k.sup.th battery information and a k.sup.th ID.

In an embodiment an apparatus includes a contactless transponder including a contactless interface and a wired interface, wherein the contactless transponder is configured to communicate with a contactless reader according to a contactless protocol through the contactless interface, a wired communication bus connected to the wired interface and at least one module connected to the bus, wherein the transponder is configured so that the reader is a master on the bus when the reader and the transponder communicate.

Techniques for group control using service data objects (SDO) are disclosed. A device controller is configured to perform operations including: receiving, from device controllers that are configured to control devices so that the devices operate based on a shared set point, SDO messages using an SDO protocol; determining that the device controller is a master device controller for the device controllers, based at least on the SDO messages; and sending a setpoint update message including a modified value of the shared set point, using the SDO protocol, to slave device controllers in the device controllers, wherein a slave device controller in the slave device controllers is configured to adjust operation of at least one slave device in the devices, based at least on the setpoint update message.

Full-duplex communications over a single-wire bus is described in the present disclosure. In embodiments disclosed herein, a master circuit and a slave circuit(s) are able to communicate forward (master to slave) bus telegrams and reverse (slave to master) bus telegrams concurrently over a single-wire bus consisting of one wire. Specifically, the master circuit is configured to modulate the forward bus telegrams based on voltage pulse-width modulation (PWM), while the slave circuit(s) is configured to modulate the reverse bus telegrams based on current variations. In addition, the slave circuit(s) is further configured to harvest power from the master circuit concurrent to receiving the forward bus telegrams and sending the reverse bus telegrams. By supporting full-duplex communications over the single-wire bus, it is possible to improve efficiency, cost, and power consumption in an electronic device wherein the single-wire bus is deployed.