15results about How to "Avoid the build process" patented technology

The invention discloses an off-network block sparse orthogonal matching pursuit underwater acoustic time delay Doppler domain channel estimation method, and belongs to the technical field of underwater acoustic channel estimation. The method solves the problems that a channel estimation method based on traditional orthogonal matching pursuit cannot estimate frequency shift parameters on non-grid points and is high in calculation complexity. According to the method, channel parameters of integer grid points are obtained based on a BOMP algorithm, and then residual Doppler factors on non-grid points are subjected to further fine estimation based on maximum likelihood criterion fitting. The problem that a traditional OMP channel estimation method in underwater OTFS communication can only estimate channel parameters on grid points is solved, and the estimation precision of channel frequency shift parameters is further improved by estimating frequency shift parameters on non-grid points; and meanwhile, a fractional order dictionary is prevented from being established in a channel parameter process, so that the system complexity is reduced to a certain extent. The method can be applied to underwater sound time delay Doppler domain channel estimation.

The invention discloses a double-layer broadband achromatic super lens based on super-structure atoms and a preparation method thereof. The double-layer broadband achromatic super lens comprises a first layer of super-structure atoms, a substrate and a second layer of super-structure atoms. The method comprises the following steps: determining a phase resonance curve of the double-layer broadband achromatic superlens; determining a relational expression between the focal length of the double-layer broadband achromatic super lens and the lens aperture according to the focal depth of the diffraction lens; and determining the electric field intensity of the double-layer broadband achromatic super lens, and constructing the double-layer broadband achromatic super lens by combining the phase resonance curve of the double-layer broadband achromatic super lens and the relational expression between the focal length of the double-layer broadband achromatic super lens and the lens aperture. According to the invention, the design process of the double-layer broadband achromatic superlens can be simplified, the discrete wavelength is fully utilized to design the space in a regional manner, and then achromatism is realized. The double-layer broadband achromatic super-lens based on the super-structure atoms and the preparation method thereof can be widely applied to the technical field of integrated devices.

The invention belongs to the technical field of design optimization methods of connecting rod jumping mechanisms, and particularly relates to a topology design optimization method and optimization structure of a connecting rod jumping mechanism. According to the method, division of a design domain and a non-design domain is provided based on optimization of the connecting rod jumping mechanism, and jumping mechanism design can be carried out on the premise of ensuring calculation convergence and high efficiency. Meanwhile, after the connecting rod configuration meeting the functional requirements is obtained, a method for optimizing the size parameters of the connecting rod and the number, the rigidity value and the installation position of the energy storage spring based on the angle of energy is provided. Compared with a traditional method for optimizing the size parameters of the connecting rod, the method avoids the situation that the relation between the position of each rod piece and the input angle is established through formula derivation, the position of the rod piece at each moment is obtained based on the energy minimization principle, automatic comprehensive optimization of different connecting rod configurations can be achieved, and the calculation efficiency can be effectively improved.

The invention relates to a river water quality inversion method and system, and specifically, the method comprises the steps: obtaining the hyperspectral data of a river region, carrying out the radiation correction of the hyperspectral data, constructing a plurality of indexes according to the wave band in the hyperspectrum, calculating the correlation between each index and a water quality parameter, and sorting the indexes according to the correlation. Determining an index set corresponding to the water quality parameters based on an index sorting result; clustering the water quality parameters based on the correlation of the water quality parameters and the correlation of the index set of the water quality parameters; in the training process, for each cluster, the importance of indexes is determined according to the correlation between the indexes in the index set of the cluster and water quality parameters in the cluster, the splitting index selection probability during splitting of each tree is determined based on the importance of the indexes, and splitting stop conditions are determined according to the contour coefficient of the cluster; and performing inversion on the new hyperspectral data by using the trained model to obtain water quality parameters.

The present invention belongs to the technical field of connecting rod jump mechanism design optimization methods, and specifically relates to a topological design optimization method and optimized structure of a connecting rod jump mechanism. Based on the optimization of the connecting rod jump mechanism, the present invention proposes the division of design domain and non-design domain, which can ensure the calculation convergence and high efficiency to design the jump mechanism. At the same time, after obtaining the connecting rod configuration that meets the functional requirements, an optimization method for the connecting rod size parameters and the number of energy storage springs, stiffness value and installation position based on the energy angle is proposed. Compared with the traditional method for optimizing the connecting rod size parameters, the method of the present invention avoids establishing the relationship between the position of each rod and the input angle through formula deduction, but obtains the position of the rod at each moment based on the principle of energy minimization, which can realize the automatic comprehensive optimization of different connecting rod configurations and can effectively improve the calculation efficiency.

The present disclosure proposes a semiconductor structure, a test pad structure and a method for manufacturing the test pad structure, and relates to the field of semiconductor technology. The test pad structure includes a passivation layer, a dielectric layer, a through hole and a test pad. The dielectric layer is arranged on one side of the passivation layer, and includes a redistribution layer and a conductor, the redistribution layer has a test portion, the conductor is located on the side of the redistribution layer away from the passivation layer, and is arranged opposite to the test portion; the through hole passes through the passivation layer and the test portion, and exposes the conductor, and a partial area of ​​the test portion extends into the through hole; the test pad is filled in the through hole and has a first end and a second end, the first end is connected to the conductor, and the second end protrudes from the passivation layer. The test pad structure disclosed in the present disclosure can improve the conductivity and facilitate testing.

The invention discloses a data display method and system based on multi-source data fusion, and relates to the technical field of big data. When the system runs, data feature extraction is carried out on access information of a user through a log extraction module, and a data type log information group is formed; performing type classification marking, quantity marking and data state information marking on the data type log information group through a data type marking module to obtain a data marking information group, and processing through a type level extraction module to form a first data set, a second data set and a third data set; a data cache index module analyzes and obtains a data type processing index Clzs, a data cache index is obtained after matching, an evaluation scheme is established, specific execution is carried out according to the content of the scheme, the user query access rate is dynamically evaluated, the resource utilization rate is improved for data display, and the user experience is improved. And the multi-source data fusion display effect can be displayed more effectively and quickly.

The invention discloses a visual communication data analysis method, apparatus and device, and a storage medium. The visual communication data analysis method comprises the steps of receiving original device data sent by a data sending device; carrying out format conversion on the original equipment data based on a communication protocol between data sending equipment and a server side; generating a visual configuration interface corresponding to the target equipment data based on the target equipment data and a preset equipment data analysis format; and storing the target equipment data based on the visual configuration interface. Through the technical scheme, the docking cost of the communication data is reduced, and meanwhile, the data analysis efficiency is improved.

The invention discloses a lapel former and an integral forming process thereof, and relates to the technical field of lapel formers. According to the turn-down collar former, the non-rectangular plate is used as the raw material, so that a large number of complex mathematical models are prevented from being established and solved, the production operation is simplified, the working efficiency is improved, the parabola focal parameters and the cone spread surface size can be changed according to the actual production line requirement, and rapid design modeling of the turn-down collar former is realized; according to the cylindrical charging barrel lapel forming device, the integral forming of the lapel forming device is realized, the forming efficiency is high, the quality is good, the cost is low, the connecting curve is easily modified according to the unfolded surface of the cylindrical charging barrel lapel forming device, and the lapel forming device can be used for forming the lapel by virtue of a similar edge rolling integral forming process. And different columnar lapel forming devices are obtained, and the universality is high.

An electronic data transmission / reception control method and an electronic data transmission / reception control system are provided, which can improve reliability and confidentiality of electronic data to be transmitted and received. In the electronic data transmission / reception control method, a terminal in which an employee app is installed executes: a document number assignment step; an encryption step; a transmission request step; and a browsing step. A computer in which an organization app O is installed executes an identity verification step and a transmission approval step when an employee who belongs to an own organization is a source of the electronic data, or executes an identity verification reply step and a reception approval step when the employee who belongs to the own organization is a destination of the electronic data. A computer in which a service app is installed executes a communication destination specifying step and a relay step.

The invention discloses a method for application identification and path selection, a wireless access point and a storage medium. The wireless access point comprises a memory; and one or more processors operably coupled to the memory, the one or more processors configured to: receive a first packet for an application; configuring an initial packet flow for the application, the initial packet flow including a first forwarding action to send traffic for the application via the tunnel path; learning applications of the first group; generating an entry specifying an address of the application server and a second forwarding action in an application server address cache based on the policy of the application to send traffic for the application via a local grooming path; receiving a second packet for the application; and in response to determining that the destination address of the second packet matches the entry in the application server address cache, configuring a subsequent packet flow for the application, the subsequent packet flow including a second forwarding action to send traffic for the application via the local grooming path.

The present application relates to the technical field of privacy computing, and specifically provides a distributed multi-party asynchronous isolated secure retrieval method and device, wherein a shared network is formed by a data retrieval initiator and a data owner using a front-end machine cluster node, retrieval business is completed based on a front-end machine TEE (Trusted Execution Environment) and a hidden query method; a permission control unit is configured on remote authentication permission control of the TEE, permission monitoring at an instruction level is realized, and through sensitive data desensitization, open data and ciphertext query data confusion, query initiator anonymization and query condition fuzzification, query intention request collection, it is ensured that the entire life cycle of data query and statistical operation is carried out in a trusted isolated environment, and the security and privacy protection of data are strengthened. Compared with the prior art, the present application effectively prevents malicious operation and illegal access, thereby ensuring the security and privacy protection of data.

The present invention provides a method, apparatus and related equipment for uploading terminal data to a blockchain, which relates to the field of communication technologies. The method for uploading terminal data to a blockchain includes: receiving a request for uploading service data, where the request for uploading service data is a request sent by a terminal to the SIM card in response to receiving a first operation; and in response to the request for uploading service data, sending a first command to the terminal based on a data transmission protocol, where the first command is used to establish a communication connection relationship among the SIM card, the terminal and the blockchain platform. By using the SIM card to send a first command to the terminal to establish the communication connection relationship among the terminal, the SIM card and the blockchain platform, the embodiments of the present invention avoid directly establishing a communication connection relationship between the terminal device and the blockchain platform, thereby reducing the risk of leakage of terminal communication information.

One or more embodiments of the invention provide a question and answer method, and an agent training method and device. According to the method, after an intelligent agent obtains first question and answer information, whether visual focusing processing needs to be carried out on an inquiry image or not can be inferred based on the first question and answer information, and under the condition that visual focusing processing needs to be carried out on the inquiry image through inference, an image of a target area related to a first question in the inquiry image can be extracted; obtaining a regional image; and retrieving and generating a first answer corresponding to the first question by using an image retrieval tool and taking the regional image as a retrieval condition. Under the condition that visual focusing processing does not need to be carried out on the inquiry image through reasoning, the complete inquiry image can be used as a retrieval condition for retrieval. Afterwards, text retrieval can be dynamically performed or a final answer can be made based on an image retrieval result.

An electronic device comprises communication means capable of performing short-range wireless communication with an external communication device; operation means for accepting an operation; and control means for establishing connection to the communication device by controlling the communication means. When the communication means accepts a first input for starting connection to the communication device, the control means establishes connection to the communication device by the short-range wireless communication if an action state of the electronic device is a standby state, and the first input is an input that does not change the action state of the electronic device from the standby state to an operating state.