An electronic device is disclosed, which is connectable with a CAN bus or other broadcast network. The electronic device programmed to compute expected periods and period variability metrics for historical accumulations of messages for different message headers and to identify periodic message headers based on the period variability metrics, and is further programmed to detect a temporal anomaly as a deviation of a period of a most recent set of two or more messages with a periodic message header from the expected period for the periodic message header, and to generate an alert indicating the detected temporal anomaly. The electronic device may be further programmed to maintain a state machine for a vehicle (or other platform) including the CAN bus and perform state-aware anomaly detection.

A device for classifying image data includes a trainable pre-processing unit configured to retrieve, from a trained context, and based on the image data, at least one specification in terms of how a degree of granulation of the image data is to be reduced, and to reduce the degree of granulation of the image data in accordance with the at least one specification. The device further includes a trainable classifier configured to map the granulation-reduced image data onto an assignment to one or more classes of a specified classification.

An interface module for a communication control device of a subscriber station. The interface module has at least one configuration register for configuring the bit time of a first communication phase of a frame and/or the bit time of a second communication phase of the frame by means of which frame messages are exchanged between subscriber stations of the bus system, and a modulator for modulating a transmission signal to form a modulated transmission signal which has the bit time of the second communication phase, which bit time is configured in the at least one configuration register and differs from the bit time of the first communication phase. The interface module is configured to output the transmission signal input into the modulator to a transmitting/receiving device of the subscriber station.

A relay device and a multi-split control system that achieve reliable communication between an outdoor air conditioning unit and multiple indoor units under the condition that the length of a communication bus is limited. The system expands the communication distance by a cascade path formed by a plurality of relay devices. The cascade path transmits control signals sent by a master control device/a specific slave control device (i.e. a slave control device communicating with the master control device or certain relay device) to corresponding slave control devices one by one, and the corresponding slave control devices transmit the signals to the master control device/specific slave control device according to a response signal fed back by the control signal, where the relay devices may respectively communicate with a source node device and a destination node device on the basis of the master-slave type communication mode.

An anomaly detection electronic controller performs anomaly detection processing and is connected to a network, which a plurality of electronic controllers uses for communication. The anomaly detection electronic controller includes an anomaly detection processor that performs anomaly detection processing regarding a data frame. The anomaly detection controller also includes an anomaly detection processing requester that decides an anomaly detection processing timing when receiving the data frame, the anomaly detection processing timing being a reception timing of one or multiple fields in the data frame. The anomaly detection processor further performs the anomaly detection processing regarding the data frame at the anomaly detection processing timing decided by the anomaly detection processing requester.

An embodiment electronic system comprises a first device, a second device and a clock generator circuit. The clock generator circuit is configured to provide a clock signal having a selectable frequency. The first device comprises a first processing circuit having coupled therewith a first Ethernet interface, and the second electronic device comprises a second processing circuit having coupled therewith a second Ethernet interface. At least one of the first device and the second device is configured to determine a frequency of the clock signal as a function of an operating parameter of the first device and/or of the second device and/or as a function of a parameter of the frames exchanged between the first device and the second device, and to act on the clock generator circuit to operate the clock generator circuit at the frequency.

The present invention provides a vehicle bus-based communication method and apparatus, a computer device and a storage medium. The vehicle bus-based communication method includes: monitoring data flows transmitted through a vehicle bus by vehicle electronic control units; determining undetected data flows in to-be-obtained data flows when the monitoring reaches a first time length; broadcasting data flow obtaining requests through the vehicle bus, the data flow obtaining requests specifying queries for the undetected data flows; and obtaining data flows that are fed back through the vehicle bus in response to the data flow obtaining requests. When data flows of a vehicle are obtained through a vehicle bus, data flows on the vehicle bus are first obtained in a monitoring manner, thereby ensuring data flow obtaining efficiency. After the monitoring is performed for a period of time, data flows that are not obtained in a monitoring-and-obtaining manner are obtained by sending corresponding data flow obtaining requests to the vehicle bus, so that it is ensured that relatively more complete data flows of the vehicle can be obtained.

Methods, systems, and apparatus for a threat detection system. The threat detection system includes a threat forensics platform. The threat forensics platform includes a memory. The memory is configured to store a baseline model of controller area network (CAN) data. The threat forensics platform includes a processor coupled to the memory. The processor is configured to obtain CAN data including multiple messages. The processor is configured to compare the CAN data including the multiple messages with the baseline model. The processor is configured to determine a threat score for the CAN data based on the comparison and determine that there is a threat within the CAN data based on the threat score. The processor is configured to provide an indication that there is the threat to a driver of a vehicle or to a service provider.

Disclosed are network cable system and components thereof and methods for using the network cable system and components. The network cable system includes one or more components, such as panels, cables, connectors, mobile devices, etc. In one aspect, a panel is configured to wirelessly communicate with a mobile device to receive selections for port tracing. Based on a selected port, the panel is configured to cause an indicator corresponding to the selected port to output an indication to enable port tracing. In another aspect, a panel is configured to wirelessly communicate network related information determined by the panel or received at the panel from another networking component to the mobile device to enable remote monitoring, setup, and adjustment of the network.

This application provides a CAN bus circuit and a CAN bus communications method. The CAN bus circuit used for CAN bus communication includes: at least one CAN unit and one bus, where a first CAN unit includes an input port and an output port, the first CAN unit is any one of the at least one CAN unit, the output port is connected to the bus by using a first circuit, the input port is connected to the bus by using a second circuit, a first diode is disposed on the first circuit, and a second diode is disposed on the second circuit.