1184 results about "Transport layer" patented technology

The invention relates to the technical field of abnormal state prediction, provides a multi-dimensional time sequence equipment abnormal state prediction method and system, and solves the problems of high false alarm rate and risk prediction inaccuracy in the prior art. The method comprises the following steps: collecting a multi-node operation state data set and communication transmission layer time sequence offset information of an equipment distributed system; jitter and delay association processing is carried out on the data, and a communication stability feature set is generated by quantizing space-time correlation of a jitter extreme value and delay fluctuation; obtaining physical layer deformation and temperature drift data of the communication cable, analyzing and generating a physical layer disturbance feature sequence based on optical signal feature offset, and converting the physical layer disturbance feature sequence into channel abnormal strength features; and cross-level feature coupling is carried out on the communication stability feature and the channel abnormal strength feature, and a communication node failure or data transmission abnormal risk is predicted based on a coupling result. According to the invention, millisecond-level linkage prediction of equipment-level physical disturbance and system-level communication risks is realized, the fault false alarm rate is reduced, and the cascade failure risk is blocked.

The invention provides an energy storage cabin terminal remote upgrading method and system based on communication protocol optimization, and relates to the technical field of digital information transmission, and the method comprises the steps: deploying a bandwidth detection mechanism, adjusting a self-adaptive block transmission strategy, and dividing upgrading firmware into M dynamic data packets; constructing a dual-path transmission layer, and configuring a dual-path redundancy check mechanism; a missing block query rule is adopted, and a local flash memory is used for caching Hash check values of the received N dynamic data packets; analyzing a mapping relation between the block index and a multi-path redundancy check mechanism, and establishing a check mapping table; and performing real-time verification and state marking, and configuring a remote upgrading process to execute the upgrading operation of the energy storage cabin terminal equipment after incremental recombination is performed by comparing and verifying abnormal data packets. According to the invention, the technical problem of insufficient reliability of data transmission caused by lack of adaptability to a dynamic network environment due to the fact that most of energy storage cabin remote upgrading technologies in the prior art depend on a single communication path to carry out data transmission is solved.

The invention discloses a mechanical arm digital twinning system for deep space exploration, and relates to the technical field of digital twinning simulation. The mechanical arm comprises a physical layer, a data acquisition and transmission layer, a digital twin model layer and an application layer, the physical layer comprises a mechanical arm body and a sensor network, and the sensor network is used for acquiring operation state information of the mechanical arm body; the data acquisition and transmission layer comprises data acquisition equipment and a data transmission network, wherein the data acquisition equipment is respectively connected with the sensor network and the data transmission network. According to the invention, the physical layer, the data acquisition and transmission layer, the digital twinborn model layer and the application layer of the mechanical arm are constructed, so that the actual mechanical arm body can be guided to perform related actions through virtual simulation data, and virtual and real body configuration comparison can be completed through a visual interface; and the digital twinning requirements of various spacecraft operations in the future deep space exploration field are met.

Systems and methods for performing ZTNA secure traffic forwarding are provided. In one example, as part of setting up a TFAP tunnel, between a target service and an endpoint security agent of an endpoint device through which an application running on the endpoint device can interact with the target service, a secure connection is established between the endpoint security agent and a ZTNA AP. Based on an encryption status of traffic transmitted from the application to the target service: (i) protection against eavesdropping by an MITM attacker is provided by using the secure connection to encrypt one or more critical messages of the traffic between the endpoint security agent and the ZTNA AP; and (ii) the endpoint security agent abstains from switching to bypassing mode through the TFAP tunnel until after the one or more critical messages of the traffic have been exchanged.

The invention belongs to the technical field of network security, and discloses an encrypted enterprise network data security access method and system, and the method comprises the steps: constructing a biological recognition unit and an equipment binding unit, recognizing multi-dimensional biological data through the biological recognition unit, and carrying out the identity authentication of a user through the combination of a dynamic token generation time binding mechanism; the equipment binding unit associates the identity authentication result with the hardware fingerprint of the security access terminal to generate a digital identity certificate; a basic key is generated and updated in a rolling mode through a quantum random number generator; dual protection is carried out on the multi-dimensional biological data through a hierarchical encryption unit, the hierarchical encryption unit comprises an application layer and a transmission layer, the application layer adopts an SM4 algorithm to encrypt service content data in the multi-dimensional biological data, and the transmission layer adopts an SM2 algorithm to generate a session key to carry out forward secrecy; the security access of enterprise network data is ensured, and the security protection capability of the enterprise network is comprehensively enhanced.

The invention provides a digital twin hydrological station system which is characterized in that the system comprises a layered architecture system and a multi-dimensional safety protection mechanism, the layered architecture system is composed of a sensing layer, a transmission layer, a data layer, a model layer, an application layer and a display layer from bottom to top, the sensing layer comprises a heterogeneous hydrological monitoring equipment cluster, and the transmission layer comprises a heterogeneous hydrological monitoring equipment cluster. The equipment cluster is provided with a water level sensor array, a Doppler flowmeter, a spectrum water quality analyzer and an environment monitoring terminal, and total element acquisition of hydrological element data, equipment operation state data and environment data is realized; the transmission layer adopts a hybrid communication protocol stack, integrates an ultra-short wave communication module, an NB-IoT narrowband communication module and an optical fiber communication module, and constructs a multi-path redundant transmission channel, and a key data transmission channel is configured with a dynamic link selection algorithm; the data layer comprises a distributed storage architecture, adopts a mixed storage mode of a relational database cluster and an unstructured database, and is internally provided with a data cleaning engine and a spatio-temporal data fusion module.

The invention discloses an equipment real-time monitoring and intelligent scheduling system based on IoT and AI fusion, which comprises a sensing layer, a transmission layer, an edge computing layer, a cloud intelligent center layer and an application interaction layer, and is characterized in that the sensing layer maps heterogeneous data collected by a sensor to a unified space-time coordinate system by adopting a space-time encoder technology; the transmission layer is responsible for transmitting the data collected by the sensing layer to the edge computing layer and the cloud; the edge calculation layer calculates a three-dimensional risk field in real time based on the current operation state data of the equipment; the cloud intelligent center layer constructs digital twinborn bodies, and synchronizes the running state of equipment in real time; the application interaction layer presents equipment operation risk distribution through the risk field thermodynamic diagram; by constructing a multi-layer and multi-module collaborative architecture and fully applying advanced IoT and AI technologies, all-around real-time monitoring, accurate fault prediction and intelligent scheduling decision making of industrial equipment are realized, an intelligent, efficient and reliable operation environment is created for enterprises, and industrial production is promoted to be transformed into intelligentization and digitization.

The invention discloses a file transmission protection method, system and device based on multiple encryption algorithms, and relates to the technical field of information, and the method comprises the steps: selecting a target file needing to be transmitted, carrying out the preprocessing, and generating file fragments; analyzing the sensitivity of each file fragment, and performing hierarchical encryption processing to obtain an encrypted fragment set; selecting a steganography carrier file, and embedding the encrypted fragments into the carrier file to generate a steganography index table; generating a dynamic session key based on the confusion key pool, encrypting the steganographic file transmission layer and embedding a dynamic key generation parameter; the receiving end generates a session key according to the transmission message header, decrypts the transmission layer data, extracts the steganographic file and decrypts the steganographic file; recombining the decrypted and recovered fragmented data into a complete file according to an identifier sequence; by dynamically matching the steganography carrier file, the efficient embedding of the fragmented data and the generation of the steganography index table are realized, and the concealment and the adaptability in the transmission process are ensured.

The invention relates to the technical field of wireless communication, provides a scene-driven intelligent wireless communication system based on digital twinning, and defines an interactive interface of a system-level simulation layer, a link-level twinning layer and a physical transmission layer in order to solve the problems that an existing wireless communication system is fixed in transmission mode and solidified in performance boundary. Wireless communication is enabled and intelligent by means of the digital twin technology, the air interface transmission mode is flexibly and rapidly adjusted according to the communication environment or user service requirements under the condition that an actual physical wireless communication system is not affected, higher-quality communication services can be provided as required, and the utilization rate of air interface time-frequency resources is increased. According to the method, air interface transmission parameters can be dynamically adjusted according to cognition of a current communication scene, future user requirements and prediction of channel quality, time-frequency resource allocation is pre-optimized in a predictable manner, and simulation deduction and rapid verification are carried out by utilizing a twin environment. And finally, an optimal communication optimization strategy under the current communication condition or an air interface transmission pre-adjustment strategy under the future channel quality condition is obtained, and the flexibility and efficiency of air interface transmission are improved.

The invention provides a rail transit vehicle-ground security encryption control method based on a national cryptographic algorithm. The method comprises the following steps: realizing rail transit vehicle-ground security encryption control enabled by the national cryptographic algorithm by adopting a layered and segmented three-level security encryption architecture of a vehicle-mounted terminal layer-a network transmission layer-a core network layer; cooperative control of a national cryptographic algorithm is realized through three stages of terminal authentication, data encryption and tunnel encapsulation; in order to solve the problem of encryption interruption caused by wireless link switching such as 5G signal attenuation, the technical scheme of the patent realizes lossless switching through a three-layer linkage mechanism of signal monitoring, switching decision and key synchronization; self-adaptive intelligent adjustment of a key strategy is realized through a three-layer closed-loop architecture of environmental perception, intelligent evaluation and dynamic regulation and control; and the self-adaptive intelligent adjustment of the key strategy is realized through a three-layer closed-loop architecture of environmental perception, intelligent evaluation and dynamic regulation and control. And the national secret algorithm is combined with the block chain evidence storage technology to realize data tampering prevention, and the speed is high.

The invention discloses a high-performance satellite platform based on a real-time operating system and a wireless bus and a working method of the high-performance satellite platform, and belongs to satellite communication technologies, future deep space exploration and low-orbit satellite constellations. On the basis of an original structure of a satellite platform, a real-time operating system is effectively combined with a wireless bus system, and the real-time operating system comprises a kernel module, a communication module, an equipment driving module, a file system module, an application interface module, a safety module and a fault management module. The wireless bus system comprises a physical layer, a data link layer, a network layer, a transmission layer and an application layer. According to the invention, efficient and reliable communication and task execution capabilities are provided for a satellite platform, the requirements of real-time performance and reliability of a satellite in a complex environment are effectively met through modular design and tight work of the system, and meanwhile, complex lines and interfaces brought by a wired system are avoided.

Provided in the present application are a power load regulation and control system and method based on a high-speed wireless transmission network. The power load regulation and control system comprises a regulation and control resource layer, an aggregation transmission layer and a load terminal layer, wherein the load terminal layer is connected to each terminal device, and is used for collecting information of each terminal device and fusing the information of the terminal devices, and also issuing a control instruction to each terminal device or transmitting fused information to the aggregation transmission layer; the aggregation transmission layer is used for transmitting the fused information to the regulation and control resource layer by using multi-service multi-hop access technology and secure transmission technology, and transmitting to the load terminal layer the control instruction issued by the regulation and control resource layer; and the regulation and control resource layer is used for generating the control instruction for each terminal device on the basis of the fused information, and transmitting the control instruction to the aggregation transmission layer. The present application can realize the unification of a stable connection and a high transmission rate, can also meet the high requirements for data collection and the transmission rate, and can also cope with complex and variable channel transmission scenarios.

The embodiment of the invention discloses a data transmission method and device, a storage medium and equipment, which can be applied to various scenes such as cloud technology, artificial intelligence, intelligent traffic and auxiliary driving. Sending a handshake request to the server through a special transport layer security protocol between the small program end and the server; a dynamic key returned by the server according to the handshake request and an encrypted string obtained through encryption processing based on the dynamic key are received through a dedicated transport layer security protocol; obtaining target data to be sent, and encrypting the target data through the dynamic key to generate a corresponding ciphertext; and sending the ciphertext and the encrypted string to a server through a general transport layer security protocol, so that the server performs second decryption processing on the ciphertext according to a dynamic key recovered by performing first decryption processing on the encrypted string to obtain target data. Therefore, the dynamic key is prevented from being transmitted in a plaintext form, the dynamic key is prevented from being cracked, and the security of data transmission is improved.

The invention discloses a bridge structure health state intelligent sensing and early warning system, relates to the technical field of bridge monitoring, and provides the following scheme that the bridge structure health state intelligent sensing and early warning system comprises a sensing layer, a transmission layer, a data layer, an analysis layer and an application layer which are connected in sequence and work cooperatively: the sensing layer is used for comprehensively collecting health state parameters of a bridge structure; according to the method, the comprehensiveness of monitoring parameters is guaranteed, the effectiveness and transmission efficiency of collected data are improved, redundant data are prevented from occupying resources, deep mining is achieved, a more scientific basis is provided for health status assessment and disease diagnosis, misjudgment caused by single parameter analysis is reduced, the diagnosis precision is improved, and the method is suitable for popularization and application. The intelligent optimization and simulation evaluation of the maintenance scheme are realized, the limitation of the traditional empirical scheme is avoided, the maintenance cost is reduced, the construction period is shortened, the influence on traffic is reduced, the performability of the scheme is improved, the stable and safe transmission of monitoring data in a complex environment is ensured, and the data loss or leakage is avoided.

The invention discloses an area-level distributed photovoltaic power station intelligent management method based on a cloud side end architecture, and the method comprises the steps: building a layered architecture: the layered architecture building comprises a sensing layer, a transmission layer, an edge calculation layer, a platform layer and an application layer, and relates to the technical field of energy management and information technology crossing. By deploying various high-precision sensors in the sensing layer, the equipment operation state and environmental factors are sensed comprehensively, and richer data can be obtained. In the aspect of equipment performance analysis, indexes such as average power generation efficiency and the like are calculated, multi-dimensional comparison is carried out by applying time sequence analysis and data normalization processing, and equipment performance abnormity can be found more timely and accurately.

Techniques include a method, apparatus, system and computer-readable medium to detect, quantify and localize attacks to enhance security for time-synchronized networking. Embodiments include a diagnostic stream producer to produce diagnostic information providing evidence of a timing attack on a node of a time-synchronized network. Embodiments include a diagnostic stream consumer to consume diagnostic information, analyze the diagnostic information, and determine whether a node is under a timing attack. Other embodiments are described and claimed.

A different network address is assigned to each port of a first device and a second device that are configured to exchange traffic over a multi-path connection of a transport layer protocol. When a timeout is detected by the first device indicating that a packet sent to a first network address assigned to a first port of the second device was not received, the first device can regenerate the packet with a second network address assigned to a second port of the second device, and send the regenerated packet to the second network address of the second device. The first device can send heartbeat packets to the first port in an exponential backoff manner and, upon receiving a heartbeat acknowledgement from the first port, resume sending the packets to the first port.

The invention belongs to the technical field of seismic equipment monitoring, and provides a seismic network communication fault positioning method based on multi-dimensional protocol diagnosis, which comprises physical layer IOT analysis, network layer protocol analysis, transport layer protocol analysis, application layer protocol analysis, a protection mechanism adaptive adjustment algorithm and a cross-layer collaborative analysis state mechanism. According to the method, multi-dimensional protocol fault analysis is realized, and the analysis accuracy is higher than that of a single-dimensional mode through analysis of application, transmission, network and physical four-layer protocols. Analysis is carried out through the sequence from the physical layer to the application layer, positioning can be completed after the problem is positioned on the upper layer, and high analysis efficiency is achieved. According to the method, the analysis process is completed mainly in a network detection mode, only physical layer analysis needs IOT hardware equipment to participate, the analysis can be achieved in a pure soft mode, and the method has the good cost advantage.

The invention discloses a multi-channel high-precision water level dynamic real-time monitoring system for a drilling water pumping test, and the system comprises a sensing layer which is used for deploying a multi-source sensor array, inhibiting interference through distributed layout and electromagnetic shielding, collecting multi-dimensional data in real time, and carrying out the preliminary filtering; according to the transmission layer, an optical fiber and twisted pair redundant network is constructed, an EtherCAT protocol is adopted for low-delay transmission, AES-128 encryption tampering prevention is integrated, and edge nodes compress data and verify integrity; the processing layer is used for carrying out real-time preprocessing on edge calculation and switching a standby sensor in abnormal detection; the cloud end predicts the water level trend through Spark Streaming analysis and an LSTM model, distinguishes interference through a random forest algorithm, and outputs calibration data and an analysis report; the application layer is used for constructing a three-dimensional drilling model based on Unity, dynamically displaying water level changes, synchronizing a multi-parameter curve and supporting historical backtracking; the early warning module notifies abnormity through sound and light and short messages, the decision module generates a report and supports multi-drill-hole comparison, and the test strategy is optimized.

Disclosed in the embodiments of the present application are a data transmission method, an apparatus, a storage medium and a device, which can be applied to various scenarios such as cloud technology, artificial intelligence, smart traffic and aided driving. The method comprises: by means of a dedicated transport layer security protocol between an applet and a server, sending a handshake request to the server; by means of the dedicated transport layer security protocol, receiving a dynamic key returned, on the basis of the handshake request, by the server and an encrypted string obtained on the basis of the dynamic key; acquiring data to be transmitted, and using the dynamic key to encrypt the data, so as to obtain a ciphertext; and, by means of a universal transport layer security protocol, sending the ciphertext and the encrypted string to the server, so that the server obtains the dynamic key on the basis of decrypting the encrypted string, and decrypts the ciphertext on the basis of the dynamic key to obtain decrypted data.

System, methods, apparatuses, and computer program products are disclosed for injecting custom information for a server while establishing end-to-end secure communications with a client via a tunneling service. A reverse proxy receives, from a client over a first transport-layer connection, a request that includes an identifier associated with an on-premises resource. The reverse proxy determines, based on the identifier, that an error prevents forwarding of the client request to the on-premises resource. In response, the reverse proxy transmits, to an error handling service (EHS) over a second transport-layer connection, a new application-layer request comprising error handling information to enable the EHS to establish, via the reverse proxy, a secure communications channel with the client using the existing first transport-layer connection and the second transport-layer connection. The reverse proxy proxies, from the EHS and to the client, an encrypted response containing an error message.

This disclosure describes a technique to fingerprint TLS connection information to facilitate bot detection. The notion is referred to herein as “TLS fingerprinting.” Preferably, TLS fingerprinting herein comprises combining different parameters from the initial “Hello” packet send by the client. In one embodiment, the different parameters from the Hello packet that are to create the fingerprint (the “TLS signature”) are: record layer version, client version, ordered TLS extensions, ordered cipher list, ordered elliptic curve list, and ordered signature algorithms list. Preferably, the edge server persists the TLS signature for the duration of a session.

The invention provides a multi-stage desensitization electricity charge sensitive data protection system, belongs to the technical field of information security in the power industry, and relates to a full-life-cycle protection scheme of sensitive data such as an identity label, account information and contact information in an electricity charge service system. The problems that in the prior art, only simple masking or full-table encryption is carried out on a database layer, the desensitization dimension is single, multiple links are prone to leakage, no role fine-grained desensitization strategy exists, and exported files are difficult to trace are solved. The system comprises a data acquisition source and acquisition layer desensitization, a transmission layer encryption, a storage layer transparent encryption, an API gateway, a desensitization strategy center, a front-end dynamic mask, a watermark export, a log desensitization plug-in and an auditing log module, covers the whole process from data acquisition to log auditing, dynamically regulates and controls data display according to roles, and exports a file embedded identity watermark. And desensitizing the log and reserving operation marks. Full-link leakage prevention, fine-grained permission control and leakage traceability can be realized, and the transformation cost is low.

The invention relates to a compression algorithm optimization method and device based on a RapidIO protocol stack and electronic equipment, and the method comprises the steps: determining an applicable compression algorithm according to the type of data transmitted by RapidIO; integrating the selected compression algorithm to a transmission layer of a RapidIO protocol stack, and creating compression and decompression functions as independent modules; dynamically adjusting a compression strategy according to a real-time network state and data characteristics; and a data integrity checking mechanism is added in the compression and decompression processes. By selecting a proper compression algorithm and integrating the compression algorithm into a protocol stack, the data transmission quantity can be remarkably reduced, so that the bandwidth utilization rate is improved, the high-bandwidth requirement is met, meanwhile, due to the modular design and the introduction of a dynamic compression strategy, the system can perform self-adaptive adjustment according to the real-time network state and data characteristics, and the real-time performance of the system is improved. The real-time requirement is met, the bandwidth can be effectively utilized conveniently when large-scale data transmission is processed, and resource waste is reduced.

The invention relates to the technical field of edge computing, and discloses an edge computing intelligent decision-making system based on edge cloud collaboration, which comprises a terminal sensing layer, an edge computing layer, a network transmission layer and a cloud center layer. The terminal sensing layer is configured to collect original data; the edge computing layer comprises edge computing equipment, a resource scheduling module and a distributed synchronous triggering module which are respectively used for data preprocessing and model reasoning, dynamic resource allocation based on multi-agent deep reinforcement learning and multi-equipment synchronous acquisition realized through a precision time protocol; the network transmission layer dynamically adjusts a transmission strategy based on a reinforcement learning algorithm during data transmission; and the cloud center layer carries out training optimization on the model through a federal learning mechanism and issues the model to an edge side. According to the method, millisecond-level real-time intelligent decision making of an industrial site and sustainable evolution of the AI model are realized through a side cloud collaborative architecture, and the efficiency, the reliability and the self-adaptive capability of the system are effectively improved.

The invention provides a KCP reliable transmission proxy method and system based on the Internet of Things, and relates to the technical field of Internet of Things communication, and the method comprises the steps: transmitting Internet of Things application protocol data to a local proxy through a client; packaging the received data networking application protocol data based on an application layer rapid and reliable protocol; forwarding the packaged request data packet to a remote agent of the target device based on a transport layer protocol; analyzing the request data packet to obtain data networking application protocol data and address data in a session message header; establishing connection with a target server according to server address information and a server port number in the address data; in response to the forwarded data networking application protocol data, the target server returns response data to the remote agent; the response data are packaged and transmitted back to the local agent to be analyzed, and the response data are forwarded to the client; and closing the connection between the client and the local agent based on the received response data. The invention aims to carry out efficient and reliable data networking data proxy.

The invention provides a flow control method based on segmented flight route splicing data, and the method comprises the following steps: S1, carrying out the dynamic flight path perception and segmented detection stage, and analyzing the ADS-B broadcast data and flight plan of an aircraft in real time; s2, a flight path prediction and resource pre-allocation stage: predicting the flight path of the aircraft in the future 10 seconds based on the hybrid model and the flight route, inputting a historical flight path, meteorological data and an airspace control instruction, and outputting a flight path probability distribution diagram; according to a prediction result, an optimal network resource allocation scheme is dynamically calculated through reinforcement learning, a target function is minimum switching delay, and satellite link delay compensation and spectrum resource conflict avoidance are constrained; s3, in a multi-mode network cooperative switching stage, a flow table rule is issued to a target network node through the SDN controller 300 ms before a route splicing point, and a double-link redundant channel is established; a QUIC protocol optimized fast session migration technology is adopted, transmission layer connection is maintained during physical layer switching, and zero-loss switching is achieved.

Methods, systems, and apparatuses are described herein for protecting sensitive data even when Transport Layer Security (TLS) communication sessions are compromised. A computing device may send, via a web browser plugin of a web browser application executing on the computing device and to one or more remote servers, a request for a server secret that comprises a device fingerprint, an identification of the web browser application, and an identification of the web browser plugin. The computing device may receive the server secret and a public certificate associated with the remote server. The computing device may establish, via the web browser application, a TLS session with the one or more remote servers. The computing device may generate a session key. The computing device may receive data comprising unencrypted data and encrypted data. The computing device may decrypt the encrypted data based on the session key.

The invention discloses an electric power multi-protocol data conversion method and system based on object model dynamic mapping, and the method comprises the steps: receiving an original protocol message, recognizing a protocol type, extracting a logic name as a unique identifier of equipment, extracting an object identifier as a measurement point identifier, and extracting an electric energy array as a measurement point value; according to the protocol type and the equipment unique identifier, matching a corresponding object model template from a unified object model library; mapping the equipment unique identifier, the measuring point identifier, the measuring point numerical value and the acquisition timestamp obtained by analysis to corresponding fields in a template; and generating an object model data object conforming to a standard format, packaging the object into a message, executing an encryption authentication mechanism of a network layer and a transmission layer through the power Internet of Things security access gateway, and sending the message to an Internet of Things management platform. According to the invention, standardized, automatic and secure access of different protocol terminals is realized through protocol analysis and the unified object model library.

The invention provides a communication method of multi-application communication based on a serial interface and a storage medium, the communication method is applied to a protocol stack of multi-application communication, a hardware layer of the protocol stack uses an asynchronous full-duplex serial interface, and the communication method comprises the following steps: establishing a point-to-point transmission channel between applications through the asynchronous full-duplex serial interface; a sending end sets sending numbers for data packets, the data packets are packaged into data frames through a data link layer of a protocol stack, and the data frames are sequentially sent through a transmission layer of the protocol stack according to priorities of point-to-point transmission channels of different applications in all the applications; and the receiving end receives the data frame and verifies the transmission integrity of the data packet according to the sending number. The technical problems that the design of an existing communication method in a multi-chip ECU board is complex, and communication of multiple applications in two chips through one interface cannot be achieved are solved.