7 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.

A system and method for a predefined network topology and a predefined and linearly independent time synchronization ring. The predefined network topology includes a predefined symmetric network topology, such as a ring network topology. In the predefined symmetric network topology, a ring is constructed by computing nodes selected based on rules, where the ring construction takes a simplified line-up form to provide a linearly independent ring. These schemes create a time synchronization architecture that can tolerate one or more computing node failures without the need to re-compute the network topology or ring, and are able to add one or more irregular computing nodes and generate additional linearly independent rings. These schemes are also able to accommodate various multi-level physical network configurations and provide a physical network-aware multi-level network effect architecture for clock synchronization.

The invention discloses a fault detection and fault tolerance method for a navigation sensor, and the method comprises the steps: S1, carrying out the segmentation processing of to-be-processed original data in a sliding window manner, and carrying out the normalization processing of the data in each sliding window; s2, carrying out feature extraction on the data normalized in the step S1 by adopting an FKPCA feature extraction method; s3, inputting the features extracted in the step S2 into an SVM classification model for fault detection; s4, building a fault signal active fault-tolerant network model based on BiLSTM, predicting detected fault data by using a BiLSTM neural network, and predicting the fault data through existing normal data so as to complete signal reconstruction; and S5, constructing an active fault tolerance method based on the FKPCA-SVM-BiLSTM. According to the method, the accuracy of sensor fault detection can be effectively improved, and dynamic reconstruction can be effectively carried out in time under various fault states.

The invention relates to a low-delay high-fault-tolerance network topology construction method and system based on a side girth regular graph. The method comprises the following steps: acquiring a node number and a target fault tolerance of a target network, and constructing a finite field algebraic framework; generating a network topology of an edge girth regular graph based on the framework; calculating a closed-loop path to which each edge in the network topology belongs; and screening paths meeting a preset girth constraint in the closed-loop paths to generate a fault-tolerant path set, wherein the fault-tolerant path set is used for providing a switchable standby path when a network fault occurs. According to the method, unified optimization of high fault tolerance and low-delay transmission is realized through an algebraic constrained topological structure and a closed-loop path screening mechanism.

The present application provides a method, device, electronic device and storage medium for simulating a network of a system on a crystal. The method includes: obtaining an object input by a user for a customized prompt for simulating a network of a system on a crystal; the input object includes at least customized fault information of the fault location of the fault-tolerant network; the fault location includes the node location of the faulty router and / or the location of the link where the fault occurs between adjacent routers; the input object includes at least one of a fault-tolerant network, a routing algorithm and a traffic pattern; globally querying the status of routers and links in the fault-tolerant network, locating and recording the fault location; using a routing algorithm, planning a route of a routing table for planning a transmission path for data that avoids the fault location according to the node location and the link location; using traffic simulation data packets, transmitting data according to the traffic pattern and the transmission path, simulating the function and performance of the fault-tolerant network, and outputting the simulation results. In this way, the cost is low and the versatility is good.

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.