33 results about "Automotive ethernet" patented technology

A transmission method of a domain gateway over a vehicle network based on automotive Ethernet includes receiving, by a domain gateway of a first domain, transmission data on a CAN packet basis from a transmitting-side ECU; transmitting, by the domain gateway of the first domain, the transmission on an Ethernet packet basis to a domain gateway of a second domain; and transmitting, by the domain gateway of the second domain, the transmission data on a CAN packet basis to a receiving-side ECU. The CAN packet includes a CAN ID field, and the CAN ID field includes a CAN message section and an authentication section.

The invention provides an automobile intelligent information entertainment service system. The system performs digitalized processing on intelligent information including entertainment information andachieves distributed deployment with a human-computer interface client, and at least comprises an automobile Ethernet intelligent interconnected antenna controller and the human-computer interface client which are separated, wherein the automobile Ethernet intelligent interconnected antenna controller comprises an antenna, a function module, a central processing unit and an Ethernet communicationinterface; the human-computer interface client comprises an operation interaction module, an operation processing unit and an Ethernet communication interface, and the human-computer interface clientand the automobile Ethernet intelligent interconnected antenna controller achieve communication through the ethernet communication interface on the basis of the distributed architecture design. According to the technical scheme, the independence of the information entertainment functional domain is extruded, and system complexity and redundancy are avoided; interconnection and communication function modules are deployed inside the automobile more reasonably; the roof antenna digital gateway function and performance advantages continue to be brought into play; the system is service for two ormore human-computer interface windows inside the automobile, the software angle can be reasonably achieved; communication isolation is achieved, and for independent isolation deployment with functionapplication with the large interconnection security flaw, the influence on the system with the high security level inside the automobile is reduced.

The invention discloses a UDS function addressing method based on an automobile Ethernet, and the method comprises the following steps: carrying out the mapping of a function addressing address and anIP multicast address, building a mapping table, and enabling the mapping table to be built in a node which is used for an Ethernet diagnosis function; according to the mapping table, completing the control of the server on the access permission of the external test equipment; sending the diagnosis communication of the functional addressing communication mode to a server; and after the server receives the function addressing diagnosis message, carrying out diagnosis processing. By adopting the technical scheme provided by the invention, the client only needs to process and send one data packetonce when processing function addressing and sending, and the processing time of the external test equipment, the overall communication time and the occupation of the system bandwidth are well improved.

The invention provides an automobile Ethernet redundancy scheduling method based on ring networking, which provides a set of complete negotiation and scheduling mechanism for block gateways under thering automobile Ethernet redundancy networking, regards all the block gateways as a logic gateway device, digests redundant broadcast messages in the logic gateway, and avoids generation of a loop problem; a distributed elastic forwarding technology is adopted in the logic gateway to realize two-layer and three-layer forwarding of the message, and the processing capacity of each block gateway is exerted to the maximum extent; and when the connection between any two block gateways fails, the annular connection is switched into the chain connection, so that the service of the mechanism is not influenced and can be quickly converged and switched, and the high availability of the automobile network is ensured.

The invention relates to an automobile Ethernet bus design method based on a DDS protocol, which comprises the following steps: generating a topological structure of Service and a topological structure of a whole automobile Ethernet architecture through a UML, the topological structure of Service comprising the following interfaces: Key, Partion and QoS; converting a topological structure of Service and a topological structure of a whole vehicle Ethernet architecture into an interface definition language (IDL) file conforming to a DDS protocol specification, and then generating a service interface code from the IDL file, the service interface code comprising a file of corresponding data and a related publish-subscribe node code; and finally, deploying the service interface code into a corresponding application layer code. According to the invention, the characteristics of intuitiveness and easiness in understanding of the UML language are utilized, so that the design efficiency of theEthernet bus of the automobile is improved, and bus faults are reduced.

A device and a computer-implemented method for classifying data, in particular for a Controller Area Network or an automotive Ethernet network. A plurality of messages is received from a communications network. A message that has a predefined message type is selected for an input variable for an input model of a plurality of input models of an artificial neural network associated with the predefined message type. The input variable is determined as a function of the message, and in an output area of the artificial neural network a prediction is output that is usable for classifying the message as a function of the input variable, or a reconstruction of an input variable is output that is usable for classifying the message as a function of this input variable.

Disclosed herein are a method for managing an access control list based on an automotive Ethernet and an apparatus for the same. The method includes analyzing a new access control rule that is input to a vehicle in which the automotive Ethernet is applied, searching for any one target unit to manage the new access control rule in consideration of at least one of a destination and an application target corresponding to the new access control rule, and storing the new access control rule by transmitting a storage request message corresponding to the new access control rule to the target unit.

The embodiment of the invention discloses an automobile optical fiber Ethernet communication device. According to the technical scheme provided by the embodiment of the invention, the work of the sleep awakening module is controlled through the control module; when automobile optical fiber Ethernet communication needs to be carried out, the sleep awakening module is controlled to electrify the optical fiber Ethernet transceiver and the photoelectric conversion module, a photoelectric conversion module is connected between two nodes needing communication connection through an optical fiber. Ethernet data transmission of the two communication nodes is realized, the photoelectric conversion module performs photoelectric conversion on Ethernet data, Ethernet data are transmitted and received through the optical fiber Ethernet transceiver, optical fiber communication is used for achieving the current isolation effect, due to the excellent EMC performance of the optical fiber Ethernet transceiver, the complexity and cost of the EMC debugging process are reduced, the EMC performance of the automobile Ethernet is improved, and the requirement for current isolation is met.

The invention discloses a vehicle-mounted Ethernet switch hardware test method, device and equipment and a storage medium, and the method comprises the steps: enabling a vehicle-mounted Ethernet to be connected with an industrial Ethernet, and transmitting a target broadcast message to an Ethernet gateway through a computer after the vehicle-mounted Ethernet is connected with the computer; receiving a response message fed back by the Ethernet gateway, analyzing the response message, and generating an analyzed message; when the analysis message and the target broadcast message have the same period and the same total number of the messages, determining that the transmission of the vehicle-mounted Ethernet switch is normal, so that the vehicle-mounted Ethernet and the industrial Ethernet in the gateway can be tested at the same time by using the existing Ethernet test equipment, the method does not need to add any special testing tool and testing software for the automobile Ethernet, is simple and reliable in scheme, reduces the testing cost, does not need to integrate an operating system, can reduce the development difficulty of the testing software to the greatest extent, and shortens the development period.

A system and method for detecting abnormal motor vehicle operation and providing notification and alerts to third parties, comprising: an impediment proximity detection subsystem including sensors at least mounted at external surfaces of said vehicle, said impediments consisting of at least fixed and moving objects external to said vehicle; a vital sign detection subsystem installed in said vehicle, including driver monitoring sensors and providing a measure of at least driver pulse rate and hand location; a controller installed in said vehicle, for receiving and processing sensor produced signals; an alarm subsystem installed in said vehicle, producing at least one of a visual or vibrational signal; a cloud interface subsystem including at least a WiFi transceiver installed in said vehicle, and a Google Cloud IoT Service or equivalent, and a vehicle to vehicle communication subsystem installed in said vehicle, using the BroadR-Reach® standard for automotive Ethernet or its evolving equivalents.

The invention discloses an automotive Ethernet outer conductor device and a connector, belonging to the technical field of connectors. The automotive Ethernet outer conductor device includes a shielding shell, an insulator and a signal terminal. The shielding shell includes a shell and a shrapnel. The shell includes a socket part and a shielding body connected in sequence. The shell has a through hole that runs through the socket part and the shielding body in sequence. At least two installation holes are spaced apart along the outer wall of the socket part in the circumferential direction, and the shrapnel is arranged in the installation hole. The shrapnel includes a fixed end and a free end. In the direction of the central axis of the through hole, the fixed end is connected to the installation hole and arranged opposite One of the two inner walls, the fixed ends of at least two opposite shrapnels are respectively located at the two ends of the socket part; the insulator is arranged in the through hole, and a socket hole is opened in the insulator; the signal terminal is inserted in the socket hole Inside, one end of the signal terminal is connected to the cable. The invention can reduce the external electromagnetic interference, improve the shielding effect, and reduce the plugging force when the socket part is connected.

The invention discloses an automobile Ethernet outer conductor device and a connector, and belongs to the technical field of connectors. The automobile Ethernet outer conductor device comprises a shielding shell, an insulator and a signal terminal, the shielding shell comprises a shell body and an elastic piece, the shell body comprises an inserting part and a shielding main body which are connected in sequence, the shell body is provided with a through hole which penetrates through the inserting part and the shielding main body in sequence, at least two mounting holes are formed in the outerwall of the inserting part in the circumferential direction at intervals, and elastic pieces are arranged in the mounting holes. Each elastic sheet comprises a fixed end and a free end, in the centralaxis direction of the through hole, the fixed end is connected to one of the two opposite inner walls of the mounting hole, and the fixed ends of the at least two opposite elastic sheets are locatedat the two ends of the inserting part respectively; the insulator is arranged in the through hole, and an insertion hole is formed in the insulator; and the signal terminal is inserted into the insertion hole, and one end of a signal terminal is connected with a cable. According to the invention, the external electromagnetic interference can be reduced, the shielding effect is improved, and the plugging force during connection of the plugging part is reduced.

The embodiment of the invention relates to automotive Ethernet, and provides a method for waking up a physical layer of a first node in a lowpower mode. The first node is in a network. The network comprisesat least thefirst node and a second node in an awake mode, and the first node and the second node havetransceivers coupled by a substantially fixed communication path.The method comprises stepsof obtaining a signal at the transceiver of the second node, the signal being designed to be transmitted at a predefined symbol rate,transmitting the signal from the transceiver of the second node tothe physical layer of the first node at a symbol rate lower than the predefined symbol rate ina predetermined duration,and stopping the transmission of the signal at the end of the predetermined duration.

The invention discloses a communication gateway and method for converting an automobile Ethernet bus into a CAN bus. The system comprises an automobile Ethernet transmitting and receiving device, a processor and a CAN bus transmitting and receiving device, The automobile Ethernet receiving and transmitting device and the CAN bus receiving and transmitting device are both connected with the processor; Wherein the automobile Ethernet transceiver is connected with equipment connected with the automobile Ethernet through the automobile Ethernet bus interface circuit, and the CAN bus transceiver isconnected with the equipment connected with the CAN bus network through the CAN bus network interface circuit. According to the invention, the gateway is arranged as a conversion device for communication between the automobile Ethernet and the CAN bus; The problem that direct communication cannot be carried out due to the fact that a frame structure is different from a frame structure of CAN busdata transmission during automobile Ethernet data transmission is solved, barrier-free communication between the automobile Ethernet and a CAN bus network is achieved, and the real-time performance ofthe communication process of the automobile Ethernet and the CAN bus network is guaranteed.

The invention discloses a UDS function addressing method based on automotive Ethernet, which is characterized in that it includes the following steps: mapping the function addressing address with the IP multicast address, establishing a mapping table and building it into the Ethernet diagnostic function According to the mapping table, the server controls the access authority of the external test equipment; sends the diagnostic communication of the functional addressing communication mode to the server; after the server receives the functional addressing diagnostic message, it performs diagnostic processing. Adopting the technical solution of the present invention, the client only needs to process once and send a data packet when processing function addressing and sending, and the processing time of the external test equipment, the overall communication time, and the occupancy of the system bandwidth are all obtained. Nicely improved.

The invention discloses a communication gateway and a method for converting an automobile Ethernet bus to a CAN bus. The system includes an automobile Ethernet transceiver, a processor, and a CAN bus transceiver; the automobile Ethernet transceiver and the CAN bus transceiver are both connected to the processor Connection; the automotive Ethernet transceiver is connected to the equipment connected to the automotive Ethernet through the automotive Ethernet bus interface circuit, and the CAN bus transceiver is connected to the equipment connected to the CAN bus network through the CAN bus network interface circuit. The present invention solves the problem that direct communication cannot be performed due to the difference between the frame structure of the automotive Ethernet data transmission and the frame structure of the CAN bus data transmission by setting the gateway as a conversion device during the communication between the automotive Ethernet and the CAN bus. The barrier-free communication between the automotive Ethernet and the CAN bus network is realized, and the real-time performance of the communication process is guaranteed.

A system for controlling the impact of process and temperature in passive signal detector includes a voltage level detector, a first transistor with a drain electrically connected to a first input of the voltage level detector, and a second transistor with a drain electrically connected to a second input of the voltage level detector. The first transistor has a threshold voltage of a first voltage value. The threshold voltage corresponds to a minimum gate-to-source voltage to create a conducting path between source and drain terminals of a transistor. The second transistor has a threshold voltage of the first voltage value. An offset voltage is applied across a gate of the first transistor and a source of the second transistor, and applied across a gate of the second transistor and a source of the first transistor. A difference between a threshold voltage and the offset voltage is constant.

The embodiment of the invention discloses an Ethernet switching module. According to the technical scheme provided by the embodiment of the invention, data transceiving interfaces of a twisted pair Ethernet transceiver, an optical fiber Ethernet transceiver, a twisted pair side standard Ethernet transceiver and an optical fiber side standard Ethernet transceiver are connected with one another; according to the working mode of the twisted-pair Ethernet transceiver or the optical fiber side standard Ethernet transceiver, the optical fiber side standard Ethernet transceiver is selected; the optical fiber Ethernet transceiver is configured to be in an adaptive working mode; conversion of physical layer protocols between the twisted-pair Ethernet and the twisted-pair side standard Ethernet, between the optical fiber Ethernet and the optical fiber side standard Ethernet and between the twisted-pair Ethernet and the optical fiber Ethernet is achieved, conversion of different Ethernet interfaces is achieved, and testing of an automobile Ethernet is facilitated.

A system and method for detecting abnormal motor vehicle operation and providing notification and alerts to third parties, comprising: an impediment proximity detection subsystem including sensors at least mounted at external surfaces of said vehicle, said impediments consisting of at least fixed and moving objects external to said vehicle; a vital sign detection subsystem installed in said vehicle, including driver monitoring sensors and providing a measure of at least driver pulse rate and hand location; a controller installed in said vehicle, for receiving and processing sensor produced signals; an alarm subsystem installed in said vehicle, producing at least one of a visual or vibrational signal; a cloud interface subsystem including at least a WiFi transceiver installed in said vehicle, and a Google Cloud IoT Service or equivalent, and a vehicle to vehicle communication subsystem installed in said vehicle, using the BroadR-Reach® standard for automotive Ethernet or its evolving equivalents.

A node may determine the topology of a computation system. The computation system is a network of nodes and multiple nodes are capable of being a grandmaster clock source. The method includes starting a best clock selection process, announcing clock information, and if the node is not acting grand master then receiving messages announcing clock information from other nodes of the network. Topology information is extracted from the messages, and if the node is acting grandmaster then retiring from the position of grandmaster. The best clock selection process steps are repeated until no node of the network becomes acting grandmaster.

The embodiment of the application discloses an Ethernet switching module. The technical solution provided by the embodiment of the present application connects the data transceiver interfaces of the twisted-pair Ethernet transceiver, the optical fiber Ethernet transceiver, the twisted-pair side standard Ethernet transceiver, and the fiber-optic side standard Ethernet transceiver to each other, and according to The working mode of the twisted pair Ethernet transceiver or the standard Ethernet transceiver on the fiber side, configure the fiber optic Ethernet transceiver into an adapted working mode, and realize the connection between the twisted pair Ethernet and the standard Ethernet on the twisted pair side, The conversion of physical layer protocols between optical fiber Ethernet and standard Ethernet on the optical fiber side and between twisted pair Ethernet and optical fiber Ethernet realizes the conversion of different Ethernet interfaces and facilitates the testing of automotive Ethernet.

Disclosed are an apparatus and method for communicating data in an in-vehicle network. The method, performed by apparatuses for communicating data on a transmission side and a reception side, includes determining, by the apparatus on the transmission side, whether data collected from the in-vehicle network is changed; creating, by the apparatus on the transmission side, an authentication value based on the determination as to whether the data is changed, creating a message including the data and the authentication value and transmitting the message to the apparatus on the reception side; receiving, by the apparatus on the reception side, the message; creating, by the apparatus on the reception side, a verification value using data extracted from the message; and verifying, by the apparatus on the reception side, the integrity of the apparatus on the transmission side by comparing the authentication value extracted from the message with the verification value.

The present invention provides an automobile intelligent infotainment service system, which digitally processes intelligent information including entertainment information, and realizes distributed deployment with a man-machine interface client, which at least includes mutually separated: automobile Ethernet intelligent interconnection antenna A controller, which includes an antenna and a functional module, a central processing unit, and an Ethernet communication interface; and, a man-machine interface client, which includes an operation interaction module, an arithmetic processing unit, and an Ethernet communication interface; wherein, the man-machine interface The client and the automotive Ethernet intelligent interconnection antenna controller are based on the distributed architecture design to realize mutual communication through the Ethernet communication interface. The technical solution of the present invention highlights the independence of the infotainment functional domain and avoids system complexity and redundancy; more reasonably Deploy interconnection and communication function modules in the car; continue to use the function and performance advantages of its roof antenna digital gateway; serve more than two or more man-machine interface windows in the car, and the software angle can be reasonably realized; isolation Separate isolation and deployment of functional applications with relatively large security vulnerabilities in communication and interconnection can reduce the impact on systems with high security levels in the car, etc.

A system for controlling the impact of process and temperature in passive signal detector includes a voltage level detector, a first transistor with a drain electrically connected to a first input of the voltage level detector, and a second transistor with a drain electrically connected to a second input of the voltage level detector. The first transistor has a threshold voltage of a first voltage value. The threshold voltage corresponds to a minimum gate-to-source voltage to create a conducting path between source and drain terminals of a transistor. The second transistor has a threshold voltage of the first voltage value. An offset voltage is applied across a gate of the first transistor and a source of the second transistor, and applied across a gate of the second transistor and a source of the first transistor. A difference between a threshold voltage and the offset voltage is constant.

The invention discloses a vehicle-mounted Ethernet switch hardware testing method, device, equipment and storage medium. The method is connected to the vehicle-mounted Ethernet and industrial Ethernet. After the vehicle-mounted Ethernet is connected to a computer, the computer sends The target broadcasts the message to the Ethernet gateway; receives the response message fed back by the Ethernet gateway, analyzes the response message, and generates an analysis message; between the analysis message and the target broadcast message When the period is the same and the total number of packets is the same, it is determined that the transmission of the vehicle Ethernet switch is normal, and the existing Ethernet test equipment can be used to test the vehicle Ethernet and industrial Ethernet in the gateway at the same time, without any new special test for vehicle Ethernet Tools and test software, the solution is simple and reliable, reducing the cost of testing, without integrating the operating system, which can minimize the difficulty of testing software development and shorten the development cycle.

The invention relates to a method for designing an automotive Ethernet bus based on the DDS protocol, comprising the following steps: generating the topology structure of Service and the topology structure of the vehicle Ethernet architecture through UML language, wherein the topology structure of Service includes the following interfaces: Key , Partition and QoS, transform the topology structure of Service and the topology structure of the vehicle Ethernet architecture into an interface definition language IDL file conforming to the DDS protocol specification, and then generate a service interface code from the IDL file, and the service interface code includes corresponding Data files and related publish-subscribe node codes, and finally deploy the service interface codes to the corresponding application layer codes. The invention utilizes the direct-viewing and easy-to-understand features of the UML language to improve the design efficiency of the automotive Ethernet bus and reduce the occurrence of bus failures.