3 results about "Fault tolerant network" patented technology

Method (300) for providing fault-tolerant network time synchronization in a motor vehicle communication network (100), wherein the motor vehicle communication network (100) comprises: a video controller (115) coupled with a first camera (110) and a second camera (175), a lidar controller (125) coupled with a first lidar transceiver (130) and a second lidar transceiver (120), a radar controller (145) coupled with a first radar transceiver (140) and a second radar (150), a processor (160), a user interface (165), a vehicle controller (155) and a trailer interface (170) the procedure includes the following: Generation of a time synchronization signal; Transmission of the time synchronization signal from a first switch (415) to a second switch (425) via a first connection and from the first switch (415) to a third switch (435) via a second connection; Detecting a connection error on the second connection; and Transmitting the time synchronization signal from the second switch to the third switch (435) via a third connection in response to the connection fault, wherein the time synchronization signal is generated by a radar controller coupled to the first switch, and wherein a first radar sensor is coupled to the second switch and a second radar sensor is coupled to the third switch, wherein the lidar controller (125), the video controller (115) and the radar controller (145) are each configured to receive and process data from their respective sensors, and the video controller (115) is set up to receive images from the first camera (110) and the second camera (175) and to process the images to generate image data for use in creating an object map around the vehicle (105).

The invention discloses a synchronous control system for a laser television projector and an electric curtain, and relates to the technical field of synchronous control systems, the synchronous control system comprises a main control unit, an environment sensing module, a bidirectional feedback execution mechanism and a fault tolerance network, the main control unit carries multi-protocol communication interfaces, the multi-protocol communication interfaces are HDMI-CEC, Bluetooth 5.2 and Zigbee 3.0, and the environment sensing module is connected with the bidirectional feedback execution mechanism. The master control unit is internally provided with a cooperative state machine engine, and the cooperative state machine engine defines a linkage state set of the projector and the curtain. Through an OPCUA protocol interface provided with a main control unit and a smart home center controller, the scene is that a villa audio-video room is close to an underground garage, a curtain generates low-frequency vibration due to vehicle entering and exiting, according to the implementation mode, a Kistler8692C5 piezoelectric sensor is installed on a curtain rotating shaft, the sampling rate is 1kHz, when vibration of the amplitude of 4 Hz per 0.08 mm is detected, a main control unit outputs reverse-phase sine waves, the phase difference of the reverse-phase sine waves is 180 degrees plus or minus 5 degrees, and the real-time performance of the system is improved. And the motor of the lens of the projector executes compensation displacement, so that the functions of reducing image vibration and improving the viewing effect are realized.

This disclosure relates to an attack and fault tolerant Internet of Things (IoT) network. Multiple handling modules of a computer system subscribe to messages from a publisher device. Each handling module receives a message from the publisher device, processes the message to generate a processed message and signs the processed message using a private key stored on the handling module to generate a signed message. Each handling module then sends the signed message to the other handling modules, subscribes to messages from the other handling modules and receives multiple signed messages from the other handling modules. Each handling module then determines a consensus upon receiving a majority number of the multiple signed messages from the other handling modules, generates a consensus message containing the multiple respective signatures of the handling modules in response to determining the consensus and sends the consensus message to the subscriber device.