13results about How to "Realize autonomous and controllable" patented technology

The invention provides a handshake protocol method and system based on an SM2 algorithm and an SM4 algorithm, and relates to the field of encrypted transmission, and the method comprises the steps: obtaining first request information in a session process; sending a first SM2 public key generated based on an SM2 algorithm and first client random number ciphertext information to the server; decrypting the SM4 ciphertext information based on a first SM2 private key generated by an SM2 algorithm to obtain an SM4 target key; processing the random number ciphertext information of the second client and the random number ciphertext information of the first server; sending the second server random number target ciphertext information to the server; and processing the first request information to receive the session return ciphertext information from the server and decrypt to determine the session return plaintext information. The handshake encryption between the client side and the server side is completed based on the SM2 algorithm and the SM4 cryptographic algorithm, the SM2 algorithm and the SM4 algorithm are used for replacing an RSA algorithm, an ECDHE algorithm and a DES algorithm on which an SSL protocol depends, and autonomous controllability of data security and information security is achieved.

The invention belongs to the technical field of whole-genome gene chips, and particularly relates to a leymus chinensis whole-genome 50K liquid chip and application thereof. According to the leymus chinensis whole genome 50K liquid phase chip, a whole genome re-sequencing technology is utilized, an SNP molecular marker combination of leymus chinensis is determined, and then the leymus chinensis whole genome 50K liquid phase chip is developed. The chip is combined with a high-density SNP probe, realizes high-throughput and high-precision genetic typing of leymus chinensis genomes, and particularly has wide application prospects in the field of molecular breeding.

The invention belongs to the field of wireless communication, and discloses a power wireless local area network information security transmission method and a related device, and the method comprises the steps: obtaining a current physical layer leader sequence and a physical layer header, and carrying out the processing of to-be-transmitted data on the basis of the current physical layer leader sequence and the physical layer header, thereby achieving the dynamic operation of the physical layer leader sequence and the physical layer header. Meanwhile, when data to be transmitted are modulated by adopting an orthogonal frequency division multiplexing technology, a positive value random quantity is introduced to modify a cyclic prefix selection area and length and modify subcarrier parameters, so that the randomness and unpredictability of signal transmission are further improved, and the hiding of physical layer waveform parameters is realized. By dynamically switching the waveform factors of the physical layer, an attacker is difficult to capture and identify the characteristic information of the wireless signal due to the dynamic change, so that the anti-reconnaissance and anti-interception capabilities of the system are greatly improved. A parameter dynamic change rule can be self-formulated for the power wireless local area network, so that the powerful supervision capability of the power industry on the wireless local area network technology can be realized.

The invention relates to the technical field of servo motor modules, in particular to a servo motor module capable of optical high-precision adjusting.The servo motor module comprises a servo motor, a speed reduction assembly, an output assembly, a mounting assembly and a magnetic coding disc, an output shaft of the servo motor is fixedly connected with the bottom end of the speed reduction assembly, and the outer wall of the speed reduction assembly is in meshed connection with the outer wall of the output assembly; the top of the output assembly is fixedly connected with the bottom end of the installation assembly, the inner wall of the installation assembly is connected with the outer wall of the speed reduction assembly in a clamped mode, an output gear drives a detection rod to rotate, the detection rod drives a magnet block to conduct transmission below a magnetic coding disc, and therefore a magnetic detection module receives pulses to detect the rotating speed of a servo motor. High-precision angle information output is achieved, the precision reaches up to 4096, meanwhile, compared with a traditional contact type transmission mode, the non-contact transmission mode of the magnetic coding disc and the magnet blocks is achieved, zero abrasion is achieved, reliability is high, and the service life is long.

The invention relates to the technical field of solar cells, in particular to a five-junction solar cell based on bonding of a composite substrate and a wafer and a preparation method of the five-junction solar cell, and the preparation method comprises the following steps: 1) preparing a silicon-based InP film; 2) epitaxially growing a forward two-junction solar cell on the silicon-based InP thin film through MOCVD (Metal Organic Chemical Vapor Deposition); 3) epitaxially growing a reverse triple-junction solar cell on the GaAs substrate through MOCVD (Metal Organic Chemical Vapor Deposition); 4) heterogeneously integrating two sub-cells at the bottom of the silicon-based InP thin film and three sub-cells at the top of the gallium arsenide substrate through a wafer bonding technology; the three-junction solar cell and the preparation method thereof have the advantages that the performance is excellent, the collection efficiency of photon-generated carriers is effectively improved, the photoelectric conversion efficiency of the three-junction solar cell is improved, the application prospect is wide, and the like.

The invention discloses a data copy management method and system based on a block chain, and belongs to the technical field of data copy management, and the method comprises the steps: slicing source data, creating data fragments, encrypting the data fragments, and distributing the data fragments to different storage nodes according to a data positioning algorithm; calculating a hash value of the data fragment, adding the hash value into metadata, and writing the metadata and the hash value into a block chain account book; according to the data copy management method and system based on the block chain, the problems of privacy disclosure, data loss and non-traceability of an original data copy system are broken through, the block chain technology is combined, the sliced metadata is chained, privacy protection, non-tampering and traceability of the data are achieved, and the data copy management method and system based on the national cryptographic algorithm and domestic software and hardware are provided. And complete autonomous controllability of the core module is realized.

The invention provides a private network distributed voice exchange method and device, and belongs to the technical field of wired communication, and the device comprises a CPU service module, a CPU management module, an analog voice signal and PCM digital signal conversion module, a received signal processing module, a voice exchange and data encapsulation and de-encapsulation module, a data scrambling and de-scrambling module, and an Ethernet two-layer exchange module. On the basis of VoIP, distributed voice exchange and Ethernet scrambling and descrambling technologies, the defects of fixed telephone networks of telecom operators are overcome, and distributed voice access and exchange functions are provided at a plurality of nodes by utilizing Ethernet interfaces of existing network resources of some enterprises and affairs and special industries such as petroleum and electric power, so that the purposes of reducing cost and improving efficiency are achieved.

This invention belongs to the field of information security and relates to a security monitoring device based on a VPX architecture. It includes: a main processing module for processing and computing business data; a bridge module electrically connected to the main processing module for expanding auxiliary peripherals; a management and control module electrically connected to both the main processing module and the bridge module for system status monitoring and management; a network communication module electrically connected to the bridge module for providing four gigabit Ethernet interfaces to enable data interaction between systems; and a first level conversion module electrically connected to both the management and control module and the main processing module. This invention achieves end-to-end autonomous control from computation and control to security, enabling the perception and management of device health status, significantly improving fault diagnosis efficiency and system maintainability. It can operate stably in harsh environments such as national defense and aerospace, significantly improving system reliability and lifespan.

The present invention discloses a switch motherboard based on a Shenwei 121 processor and a network switching chip, including a switch motherboard body, a Shenwei 121 processor and a domestic switching chip, the switch motherboard body is installed with a Shenwei 121 processor, a power timing control chip, a BIOS chip and a memory slot, a group of XPCIE signals on the Shenwei 121 processor are connected to a PCIE interface on a domestic switching chip, the Shenwei 121 processor is connected to a power timing control chip, a BIOS chip and a memory slot, the Shenwei 121 processor is connected to a DDR3 memory controller, and the Shenwei 121 processor is connected to an Ethernet PHY via an RGMII interface. The switch motherboard based on the Shenwei 121 processor and the network switching chip provides wired Ethernet, WIFI wireless network and power line network on the switch motherboard at the same time, can achieve full broadband network coverage within the home, improve the indoor broadband network layout, and provide broadband service applications for user information appliances.

The present application discloses a three-dimensional Fourier transform acceleration method, device, equipment and medium, which relates to the field of industrial fluid, including: the CPU divides the three-dimensional data set to be processed and distributes each sub-data set to each sub-processor; when each sub-processor performs one-dimensional Fourier transform on the corresponding sub-data set in three directions in sequence, the total task of performing the one-dimensional Fourier transform is sent to the GPU, the GPU divides the total task to use each stream processor to concurrently execute each sub-task, merges the concurrent execution results of several sub-tasks belonging to the same total task, and returns each merged result to the corresponding sub-processor to update the sub-data set in the sub-processor; if the one-dimensional Fourier transform in three directions is completed, the current sub-data set in each sub-processor is merged to obtain the target three-dimensional data set. The present application reduces the complexity of Fourier transform through CPU parallelism and GPU concurrency, and realizes autonomous control of industrial fluid software.

The invention provides an air gun control system. The air gun control system comprises a host, manifold pressure, a network switch, a deck interface unit, a deck power supply unit, a time controller and a subarray, the host is in pressure connection with a manifold through a serial port line and is also connected with the network switch through a network cable, the deck interface unit is connected with the network switch and the deck power supply unit through cables, the time controller is a time receiving and control device, is connected with the network switch and is connected to the host, and the subarrays are connected with the deck interface unit through seismic cables. Each subarray is designed to be an independent module and is located below the water surface, and data interaction between underwater equipment and deck equipment is achieved. The air gun control system provided by the invention has a modular design and a simple structure, and can effectively reduce the system cost and improve the operation convenience.

The present invention discloses a network redundant communication system, in which each chip can be designed with domestically produced devices to achieve complete autonomy and control. When in multi-network card mode, each network can use the same IP address. When one of the networks fails, the other network can continue to undertake the communication task. When in PRP mode, it has an electrical port communication network and two optical port networks. The electrical port and the optical port are independent of each other and can be configured with IP separately. When the optical port sends information, if one of the optical ports fails, the other optical port can ensure that the data is not lost during the transmission process and continue to undertake the communication task. The free switching between the dual network card mode and the PRP mode can meet the use requirements of more complex and harsh environments. It can also realize network redundancy design for special industries.

The application provides a modeling method and system of an airport landscape database, wherein the method comprises the following steps: generating an airport terrain database based on basic geographic data of a target area, extracting ground features based on the airport terrain database, and constructing an airport core model matched with the ground features; generating a peripheral scene model based on geographic vector data and / or basic geographic data; modularly packaging the airport terrain database, the airport core model and the peripheral scene model, and triggering the polymorphic material interface of each module after packaging to switch the model texture based on external environment driving data, so as to generate a target airport landscape database, which solves the problems of scattered visual scene modeling tools, complicated conversion and the bottleneck of low-end commercial engines in dynamic scene rendering and frame rate stability in the prior art, greatly improves the development efficiency of large-scale airport landscapes, and comprehensively meets the strict requirements of high-level flight simulators on high immersion, high fidelity and deeply customized visual environment.