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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 39. Отображено 39.
25-10-2018 дата публикации

NODE DEVICE RUNNING METHOD, WORKING STATE SWITCHING DEVICE, NODE DEVICE, AND MEDIUM

Номер: WO2018192534A1
Принадлежит:

The present application relates to the technical field of networks. Disclosed are a node device running method, a working state switching device, a node device, and a medium. The method comprises: a first node device receives heartbeat information of a second node device running in a leader state; if the first node device runs in a candidate state, obtain running period information from the heartbeat information; and if the running period in the heartbeat information is less than the running period of the first node device, the first node device synchronizes the operation period information of the first node device into the running period information in the heartbeat information, and switches the working state of the first node device from the candidate state to a follower state or keeps the candidate state. In the present application, by synchronizing the operation period information of the first node device to the running period information in the heartbeat information, the problem in ...

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04-10-2018 дата публикации

DISTRIBUTED SYSTEM, MESSAGE PROCESSING METHOD, NODE, CLIENT, AND STORAGE MEDIUM

Номер: WO2018177264A1
Принадлежит:

Disclosed in the present invention are a distributed system, a message processing method, a node, a client, and a storage medium, the distributed system comprising the client and a plurality of nodes: a master node receiving a message from the client; sending the message to a subordinate node after successfully verifying a digital signature of the message; persistently storing the message after receiving a pre-determined number of receipt confirmation notifications from the subordinate node and after successfully verifying the digital signature, and sending a message storage notification to the subordinate node; the subordinate node returning a result to the client when receiving the message which is sent by the master node; sending a receipt confirmation notification to the master node after successfully verifying the digital signature of the received message; persistently storing the received message after verifying a digital signature of the received message storage notification; the ...

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15-06-2017 дата публикации

METHOD, DEVICE AND SYSTEM FOR PROCESSING SERVICE CREDENTIAL, AND STORAGE MEDIUM

Номер: WO2017096768A1
Принадлежит:

Disclosed are a method, device and system for processing a service credential, and a storage medium. The method comprises: obtaining information about candidate services, and loading virtual identifiers of the candidate services in a graphical interface on the basis of the information about the candidate services; initiating, when a target service booked by a booking instruction in the candidate services is detected, a booking request for the target service, and obtaining a service credential corresponding to the target service on the basis of the usage right corresponding to the target service; activating the service credential of the target service when an instruction for using the target service is detected, and authenticating the usage right of the target service on the basis of the detected activated service credential, wherein a verification request carrying information about the usage right is initiated in the authentication process, and the verification request is communicated by ...

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20-12-2018 дата публикации

SERVICE DATA STORAGE METHOD, DEVICE, STORAGE MEDIUM, AND ELECTRONIC DEVICE

Номер: WO2018228331A1
Принадлежит:

Disclosed are a service data storage method, a device, a storage medium, and an electronic device. Said method comprises: receiving service data of a user; determining, from a plurality of block chains, a target block chain corresponding to the service data according to the user attribute of the user; and generating, on the target block chain, a second block on the basis of the service data and the characteristic value of a block header in a first block of the target block chain, the first block being the previous block of the second block, and the second block being used for recording the service data. In the present application, service data can be stored in parallel in various block chains, so that the performance of the server is not limited to the chain structure of the block chain, improving the running efficiency of the server. Furthermore, targeted analysis can be performed on the service data of a category of users, in addition, users having same user attributes usually have similar ...

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07-09-2018 дата публикации

METHOD AND DEVICE FOR USE IN PROCESSING ACCOUNT INFORMATION IN BLOCK CHAINS, STORAGE MEDIUM AND ELECTRONIC DEVICE

Номер: WO2018157788A1
Принадлежит:

A method and device for use in processing account information in block chains, a storage medium and an electronic device. The method comprises: a computer equipment receiving a transfer request and identification information which are sent by a user (S302), wherein the transfer request is used for requesting that a resource in a lost account be transferred into a target account, the target account being generated by a certification center; the computer equipment acquiring information of an owner of the lost account from within the certification center according to the transfer request (S304); the computer equipment comparing the identification information with the information of the owner (S306); when determining that the identification information is consistent with the information of the user, the computer equipment submitting a certification request to a block chain such that the block chain records a transfer event in the block chain according to the certification request (S308), the ...

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25-07-2023 дата публикации

Trusted computing remote certification method and device, computer equipment and storage medium

Номер: CN116484347A
Принадлежит:

The invention relates to a trusted computing remote certification method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring random verification information, and generating a remote certification request according to the random verification information; a remote certification request is output to a verified party, signature random information and a signature digital certificate fed back by the verified party are received, the verified party is a trusted computing execution party, the signature digital certificate is generated after the verified party signs a trusted digital certificate, and the trusted digital certificate is signed and issued to the verified party by a trusted institution; obtaining credible proof information of the verified party and a root certificate of a credible mechanism from a preset block chain; when the signature digital certificate passes the verification according to the root certificate and the credible certification ...

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25-10-2018 дата публикации

NODE DEVICE RUNNING METHOD, WORKING STATE SWITCHING DEVICE, NODE DEVICE, AND MEDIUM

Номер: WO2018192533A1
Принадлежит:

The present application relates to the technical field of networks. Disclosed are a node device running method, a working state switching device, a node device, and a medium. The method comprises: receiving vote requests of multiple node devices, the number of the multiple node devices being greater than the half of the number of node devices in a system; if the current node device is running in a leader state, obtaining running period information and latest log indexes from the vote requests of the multiple node devices; and if the running periods in the vote requests of the multiple node devices are all greater than the running period of the current node device and the latest log indexes in the vote requests of the multiple node devices are all not less than the latest log index of the current node device, switching the current working state from the leader state to a follower state or a candidate state. By means of the present application, a first sub-cluster and a second sub-cluster ...

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18-04-2019 дата публикации

LOG ENTRY DUPLICATION METHOD AND DEVICE, COMPUTER EQUIPMENT, AND STORAGE MEDIUM

Номер: WO2019072085A1
Принадлежит:

Disclosed are a log entry duplication method and device, computer equipment and a storage medium, belonging to the technical field of block chains. A first node sends in parallel a plurality of first log entries to a plurality of second nodes, also provides a supplementary sending mechanism of the log entries, thereby avoiding the situation of incorrectly receiving a log entry, such as reception omission or multiple reception, of the second nodes, ensuring the consistency of data of each node, saving on time for sending the plurality of first log entries, and improving the efficiency of duplicating a log entry.

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30-01-2020 дата публикации

DIGITAL CERTIFICATE MANAGEMENT METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM

Номер: WO2020019912A1
Принадлежит:

Embodiments of the present application relate to a digital certificate management method and apparatus, a computer device, and a storage medium. The method comprises: receiving a digital certificate generation request sent by a certificate application node; sending identity authentication information to consensus authentication centers for authentication, and obtaining the authentication results obtained by the consensus authentication centers by performing authentication according to the identity authentication information; determining, according to the authentication results of the consensus authentication centers, an identity authentication result corresponding to the certificate application node; if the identity authentication result is that the authentication succeeds, generating, according to the digital certificate generation request, a target digital certificate corresponding to the certificate application node; and writing the target digital certificate as a transaction source ...

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30-01-2020 дата публикации

DIGITAL CERTIFICATE VERIFICATION METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM

Номер: WO2020019914A1
Принадлежит:

The embodiments of the present invention relate to a digital certificate verification method and apparatus, a computer device, and a storage medium. The method comprises: receiving a verification request for verifying a target digital certificate; acquiring, from a block chain, a target transaction record corresponding to the target digital certificate, wherein the target digital certificate is stored as a transaction resource in the block chain; acquiring a target account type corresponding to the target transaction record, wherein a different account type corresponds to a different certificate operation state; and determining, according to the target account type, a verification result corresponding to the target digital certificate. The above method can improve network security.

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07-09-2018 дата публикации

INFORMATION STORAGE METHOD, DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM

Номер: WO2018157858A1
Принадлежит:

Disclosed by the present disclosure are an information storage method, device, and computer-readable storage medium, belonging to the field of information technology. The method comprises: obtaining a first encryption password and to-be-stored identification information, the identification information comprising an account address and a private key corresponding to the account address, and the account address being used when share data stored in a block is generated in a data sharing system; on the basis of the first encryption password, encrypting the private key to obtain a to-be-stored ciphertext; storing the account address and, corresponding to the account address, fragmenting and storing the to-be-stored ciphertext. A terminal device uses the encryption password to encrypt the private key, such that without knowing the encryption password, other users are unable to decrypt the ciphertext to obtain the private key; furthermore, after encryption, the to-be-stored ciphertext is fragmented ...

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02-08-2018 дата публикации

SHARED DATA RECOVERY METHOD, DEVICE, COMPUTER EQUIPMENT AND STORAGE MEDIUM

Номер: WO2018137624A1
Принадлежит:

A shared data recovery method, device, computer equipment and storage medium, belonging to the field of information technology. The method comprises: acquiring a first eigenvalue of a first node when receiving a recovery request carrying a first block height (201-203); broadcasting the first eigenvalue to at least one second node in a data sharing system (204); broadcasting recovery indication information to at least one second node if determined that the shared data stored by each node in the data sharing system are consistent according to the first eigenvalue and a plurality of second eigenvalues (206); and recovering the data within a range of the first block height in the shared data if a preset number of recovery indication information is received (207). Shared data is recovered by means of determining whether the first eigenvalue is consistent with the second eigenvalues, which ensures the consistency and security of data comprised in a block and also reduces the pressure on a node ...

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09-05-2019 дата публикации

DATA SHARING METHOD, CLIENT, SERVER, COMPUTING DEVICE, AND STORAGE MEDIUM

Номер: WO2019085699A1
Принадлежит:

Provided are a data sharing method, comprising: encrypting plaintext data according to a key to obtain encrypted data; uploading the encrypted data to a block of an information sharing system, the information sharing system being a blockchain system; uploading a first part of the key to an authorized access server corresponding to the information sharing system; receiving, from the authorized access server, an authorization code corresponding to the encrypted data; and when authorizing a user to access the encrypted data, transmitting the authorization code and a second part of the secret key to a second client of the user, the second part of the key comprising the remaining part of the key other than the first part. Also provided are a corresponding client, server, computing device, and storage medium.

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11-06-2020 дата публикации

DEBT CERTIFICATE TRANSFERRING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Номер: WO2020114279A1
Принадлежит:

A debt certificate transferring method. The method comprises: generating a target account address according to a debtor account address and a creditor account address in a debt certificate transfer request, the target account address being a temporary account address used for storing the debt certificate; transferring a debt certificate corresponding to the debt certificate transfer request from the debtor account address to the target account address; and transferring the debt certificate from the target account address to the creditor account address on the basis of a confirmation instruction from the creditor account address.

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20-12-2018 дата публикации

SERVICE DATA STORAGE METHOD, COMPUTER READABLE STORAGE MEDIUM AND ELECTRONIC DEVICE

Номер: WO2018228337A1
Принадлежит:

A service data storage method, a computer readable storage medium and an electronic device, belonging to the field of network technology. The method comprises: receiving service data (201); determining, from a plurality of block chains, a target block chain corresponding to the service data according to the data type of the service data (202); and generating, on the target block chain, a second block on the basis of the service data and the characteristic value of a block header in a first block of the target block (203), the first block being the previous block of the second block, and the second block being used for recording the service data. The method can selectively perform data sharing and data isolation; moreover, as the blocks in the block chain are associated with one another, tampering of any piece of service data in the block can be detected by the next block, preventing a user from maliciously tampering or denying the processed service data, and also ensuring the security of ...

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11-06-2020 дата публикации

RESOURCE TRANSFER METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Номер: WO2020114266A1
Принадлежит:

A resource transfer method, comprising: receiving a first resource transfer request, the first resource transfer request being used to request a resource transfer associated with a target creditor's authorization certificate; verifying, according to the target creditor's authorization certificate stored in a blockchain system, the first resource transfer request; and upon successful verification, implementing, on the basis of the first resource transfer request, the resource transfer associated with the target creditor's authorization certificate.

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06-08-2020 дата публикации

BLOCKCHAIN SYSTEM BASED SERVICE PROCESSING METHOD AND DEVICE, MEDIUM AND ELECTRONIC EQUIPMENT

Номер: WO2020156225A1
Принадлежит:

The embodiment of the present application provides a blockchain system based service processing method and device, a medium and an electronic equipment. The blockchain system comprises a certification management center, a service processing node subnetwork and a service participant system. The service processing method comprises: acquiring certification information of a service participant; if there is an data update in the certification information of the service participant, generating a notification message according to the updated data; and sending the notification message to the service processing node subnetwork, the notification message being used to instruct service processing nodes in the service processing node subnetwork to process a service request according to the certification information updated by the service participant. The technical solution of the embodiment of the present application can reduce reliance on the concurrency capability of service processing nodes while ...

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17-01-2019 дата публикации

CERTIFICATE MANAGEMENT METHOD, SYSTEM, NETWORK DEVICE AND COMPUTER READABLE STORAGE MEDIUM

Номер: WO2019011179A1
Принадлежит:

A certificate management system, comprising a plurality of certificate center servers, a plurality of blockchain nodes and a plurality of terminals. Each certificate center server is used for managing a certificate of a terminal served by a corresponding service mechanism; the service mechanism corresponding to one certificate center server refers to a service mechanism to which one certificate center server is deployed; a same blockchain is configured to a plurality of blockchain nodes, and the blockchain is used for storing fingerprint information for the certificate of the terminal served by each service mechanism; any certificate center server is used for registering the certificate or updating the certificate for the terminal served by the corresponding service mechanism; the fingerprint information of the certificate is obtained on the basis of at least one piece of signature information for the certificate; the fingerprint information is sent to any blockchain node, and the signature ...

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10-09-2020 дата публикации

ELECTRONIC INVOICE IDENTIFIER ALLOCATION METHOD, AND ELECTRONIC TICKET GENERATING METHOD, DEVICE AND SYSTEM

Номер: WO2020177533A1
Принадлежит:

An electronic invoice identifier allocation method, and an electronic invoice generation method, a device and a system. Said methods are applied to a distributed system, the distributed system comprises processing nodes, said methods are executed by one processing node in the distributed system. The allocation method comprises: the processing node receiving an electronic invoice identifier claiming request initiated by a service node (310); generating, in response to the electronic invoice identifier claiming request, an electronic invoice identifier set (330); in the distributed system, synchronizing electronic invoice identifiers in the electronic invoice identifier set (350); after the electronic invoice identifiers in the electronic invoice identifier set are synchronized in the distributed system, allocating the electronic invoice identifiers in the electronic invoice identifier set to the service node (370). The invention solves the problem in the prior art of poor universality of ...

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23-06-2023 дата публикации

Modified rice hull fiber toughened grouting material and preparation method thereof

Номер: CN116283201A
Принадлежит:

The invention belongs to the technical field of agricultural product waste treatment and secondary utilization, solid waste treatment and novel grouting material research and development, and particularly discloses a modified rice hull fiber toughened grouting material and a preparation method thereof.The modified rice hull fiber toughened grouting material is formed by mixing a solution A and a solution B. The volume ratio of the solution A to the solution B is 1: 0.53-1: 0.76. The solution A is prepared from, by weight, 400 parts of cement, 5-20 parts of modified rice hull fibers, 20-30 parts of water, 20-30 parts of water, 20-30 parts of water, 20-30 parts of water and 20-30 parts of water. 5-10 parts of a silane coupling agent, 10-20 parts of an early strength agent and 300 parts of water; the liquid B is prepared from the following components in parts by weight: 150 parts of sodium silicate, 320 parts of fly ash and 300 parts of water. Compared with the prior art, the prepared modified ...

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04-10-2018 дата публикации

SERVICE PROCESSING METHOD AND DEVICE, DATA SHARING SYSTEM AND STORAGE MEDIUM

Номер: WO2018177124A1
Принадлежит:

Disclosed in the present invention are a service processing method and device, and a data sharing system. The method comprises: receiving a service processing request from a user client, the service processing request being generated according to a table structure provided by a data sharing system, the service processing request carrying service data and signature information of said service data; according to the pre-stored table structure, extracting the service data and the signature information from the service processing request; generating a service data recording request of the data sharing system, the service data recording request carrying the service data and the signature information; and sending the service data recording request to at least one node of the data sharing system such that the at least one node acquires the service data and the signature information from the service data recording request, and storing same.

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13-09-2018 дата публикации

ELECTRONIC BILL MANAGEMENT METHOD, DEVICE, AND STORAGE MEDIUM

Номер: WO2018161903A1
Принадлежит:

Embodiments of the present invention disclose an electronic bill management method, device, and storage medium and belong to the technical field of networks. The method comprises: receiving a bill issuance request of a first user, the bill issuance request comprising original bill information; generating, based on the original bill information, a first bill account corresponding to the first user, and storing account information of the first bill account to an account list in an electronic bill management system; generating a second block based on the bill issuance request, the first bill account, and a block header feature value of a first block on a blockchain of the electronic bill management system, the first block being a previous block of the second block on the blockchain, and the second block being configured to record a bill issuance event of the first user; and transmitting an issuance success message to the first user, the issuance success message comprising the first bill account ...

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20-12-2018 дата публикации

RESOURCE TRANSFER METHOD, DEVICE, STORAGE MEDIUM AND COMPUTER EQUIPMENT

Номер: WO2018228338A1
Принадлежит:

A resource transfer method, a device, a storage medium, and computer equipment, belonging to the field of network technology. The method comprises: when a cross-link resource transfer request from a first account is received, generating, on a first node device, a contract corresponding to the first account, the cross-link resource transfer request being used to request for transferring a resource of the first account to a second account, and the contract being used to indicate the conditions for the execution of various events in the resource transfer process; on the basis of the contract, when the first node device reaches a consensus for a contract generation event, transferring the resources in the contract to the second account; and on the basis of the contract, when a second node device reaches a consensus for a resource transfer event, updating the contract state of the contract to a finished state, and reaching a consensus for a state update event of the contract by means of the ...

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30-08-2018 дата публикации

ACCOUNT PROCESSING METHOD AND APPARATUS IN BLOCK CHAIN, STORAGE MEDIUM, AND COMPUTER DEVICE

Номер: WO2018153378A1
Принадлежит:

Disclosed in the present application are an account processing method and apparatus in a block chain, a storage medium, and a computer device. The method comprises: receiving a freezing instruction sent by a user, the freezing instruction being used for instructing to freeze a target account; generating a freezing lock according to the received freezing instruction, the freezing lock comprising a freezing lock public key; generating a freezing request according to the freezing instruction and the freezing lock public key, the freezing request being used for requesting to freeze the target account by using the freezing lock public key; and sending the freezing request to a device in a block chain, so that the device in the block chain records a freezing event according to the freezing request, the freezing event being used for instructing the device in the block chain to reject to perform a resource transfer on the target account. The present application can resolve the technical problem ...

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16-05-2019 дата публикации

METHOD FOR GENERATING SIGNATURE, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Номер: WO2019091289A1
Принадлежит:

The present application relates to the technical field of information, and provides a method for generating a signature, an electronic device, and a storage medium. According to the present application, an aggregated signature is generated by means of sub-signatures of a plurality of signature parties, and an aggregated public key is generated on the basis of public keys of the plurality of signature parties; the length of the obtained aggregated signature is less than that of a multi-signature obtained by assembling the plurality of sub-signatures, and the length of the aggregated public key is less than that of a multi-public key obtained by assembling a plurality of public keys; therefore, when the aggregated signature and the aggregated public key are transmitted via a network, the network transmission load is reduced, during storage, the storage space is saved, and during signature verification, the aggregated public key and the aggregated signature are directly used for verifying ...

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23-07-2020 дата публикации

METHOD, APPARATUS AND DEVICE FOR DATA PROCESSING IN BLOCKCHAIN CAPITAL SETTLEMENT SYSTEM, AND MEDIUM

Номер: WO2020147651A1
Принадлежит:

Provided are a method, apparatus and device for data processing in a blockchain capital settlement system, and a medium. The blockchain capital settlement system comprises an initiator for capital settlement, a receiver for capital settlement, and a settlement institution device entrusted by the initiator with capital settlement. The method is executed by the settlement institution device. The method comprises: querying, on a blockchain, a settlement request that a settlement institution device is responsible for processing, wherein the settlement request is generated by an initiator and is recorded on the blockchain (S310); receiving the settlement request (S320); and generating a settlement result of settlement performed according to the settlement request so as to record the settlement result on the blockchain, thereby enabling a receiver to query the settlement result (S330). According to method, the credibility and the security of a blockchain capital settlement system can be improved ...

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16-07-2020 дата публикации

METHOD FOR ISSUING DIGITAL CERTIFICATE, DIGITAL CERTIFICATE ISSUING CENTER, AND MEDIUM

Номер: WO2020143470A1
Принадлежит:

The present application provides a method for issuing a digital certificate, a digital certificate issuing center, and a medium. The method is performed by the digital certificate issuing center, and the digital certificate issuing center comprises a public-private key generation module and an authentication module. The method comprises: in response to a public-private key request from a node in a block chain network, generating, by the public-private key generation module, a public key and a private key of the node for the node, and sending the public key and the private key to the node; receiving, by the authentication module, the public key and registration information of the node, and verifying the registration information; and if the authentication is successful, generating, by the authentication module, the digital certificate of the node and sending the digital certificate to the node. In the embodiments of the present application, the certificate level of the issued digital certificate ...

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23-05-2019 дата публикации

SERVICE DATA PROCESSING METHOD, IDENTITY MANAGEMENT METHOD AND SERVICE AUDIT METHOD

Номер: WO2019095959A1
Принадлежит:

Disclosed in the present application are a service data processing method, an identity management method and a service audit method, the service data processing method comprising: receiving a first service file to be processed from a device of a service initiator, wherein the first service file is associated with the identity labels of a plurality of service participants; carrying out identity authentication for the plurality of service participants respectively according to the identity labels of the plurality of service participants, so as to obtain an identity authentication result; adding the identity authentication result to the first service file if the identity authentication of the plurality of service participants is successful so as to generate a second service file carrying the identity authentication result; sending a signature request for the second service file to the devices of the plurality of service participants respectively; and generating a third service file according ...

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20-08-2020 дата публикации

CONTROL METHOD FOR NODES IN DISTRIBUTED SYSTEM AND RELATED DEVICE

Номер: WO2020164526A1
Принадлежит:

Embodiments of the present application disclose a control method for nodes in a distributed system, the method comprising: a forwarding platform obtaining a request message sent by a user terminal by means of a secure link, wherein the secure link is established between the user terminal and the forwarding platform by means of a domain name of the forwarding platform, and the request message comprises an address identifier of a target node in a distributed system and a request of the user terminal to the target node; the forwarding platform encrypting the request so as to obtain a first encrypted message; and the forwarding platform sending the first encrypted message to the target node according to the address identifier.

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09-01-2020 дата публикации

DATA STORAGE METHOD, APPARATUS AND DEVICE, DATA VERIFICATION METHOD, APPARATUS AND DEVICE, AND MEDIUM

Номер: WO2020007209A1
Принадлежит:

A data storage method, comprising: acquiring first data of a target object; acquiring second data of the target object, wherein the first data and the second data are data of different dimensions, and the dimensions are information used for measuring any aspect of the target object in the period of generation and continuing to exist; and storing the first data and the second data of the target object in a first node.

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28-07-2023 дата публикации

Stainless steel angle steel hardness detection device

Номер: CN116499913A
Принадлежит:

The invention discloses a stainless steel angle steel hardness detection device, and belongs to the technical field of hardness detection, the stainless steel angle steel hardness detection device comprises a mounting rack, a detection assembly, a pre-detection assembly and an angle steel fixing assembly, the detection assembly is fixedly mounted above the mounting rack, the fixing assembly is arranged below the mounting rack, and the fixing assembly is used for realizing fixation and position change of angle steel; the pre-detection assembly is arranged on the mounting frame and the fixing assembly, the pre-detection assembly achieves pre-detection of the hardness of the angle steel according to the bouncing height of the test ball after the test ball falls on the angle steel so as to select proper pressing force, and the detection assembly can detect the hardness of the angle steel by adjusting the distance of a plurality of pressing points and adjusting the positions of the pressing ...

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29-08-2023 дата публикации

Tunnel inner wall leveling device and method for tunnel construction

Номер: CN116658176A
Принадлежит:

The invention discloses a tunnel inner wall leveling device and method for tunnel construction in the technical field of tunnel construction, the tunnel inner wall leveling device comprises a base, fixing plates are fixedly connected to the two sides of the upper end of the base, and moving mechanisms are arranged in the fixing plates; the moving mechanism comprises a first meshing gear, a second meshing gear, connecting columns, bearings, electric push rods and two moving rods, the connecting columns are fixedly connected to the two side faces of the first meshing gear and the two side faces of the second meshing gear respectively and inserted into the fixing plate through the bearings, the first meshing gear and the second meshing gear are connected in a meshing mode, and the number of the moving rods is two. And one end of each electric push rod is hinged to the base, the moving stability of the moving rods can be guaranteed, the orderliness of cleaning work of the moving rods can be ...

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27-06-2023 дата публикации

Crushing method for rapid prototyping preparation of high-quality complex special-shaped stainless steel product

Номер: CN116329498A
Принадлежит:

The invention belongs to the technical field of application of complex special-shaped stainless steel products, and particularly discloses a crushing method for rapid prototyping preparation of high-quality complex special-shaped stainless steel products, which comprises the following steps: step 1, melting stainless steel product raw materials; 2, the molten stainless steel product raw material liquid is transferred to a crushing and storing assembly; and 3, the stainless steel product raw material liquid falls under the action of gravity, and secondary crushing is conducted through the ultrasonic crushing assembly. And 4, the stainless steel product raw material liquid obtained after secondary ultrasonication is guided to a forming equipment mold of the special-shaped stainless steel product through a rail type material guide groove. The crushing method disclosed by the invention has the beneficial effects that a vertical combined design structure is adopted, so that assembly and use ...

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14-07-2023 дата публикации

Channel steel cutting device

Номер: CN116423072A
Автор: ZHANG JIANJUN
Принадлежит:

The invention belongs to the technical field of channel steel machining, and particularly relates to a channel steel cutting device which comprises a machine frame. The bottom end of the machine frame is fixedly connected with a plurality of groups of first electric cylinders; the output ends of the first electric cylinders are fixedly connected with laser cutters. A plurality of groups of hydraulic cylinders are fixedly connected to the bottom end of the machine frame; the bottom ends of the hydraulic cylinders are fixedly connected with fixing blocks. The two sides of channel steel are sectionally clamped and cut through the arranged clamping frame, the cutting efficiency of the channel steel is improved, the supporting plate is supported on the bottom face of the channel steel, the auxiliary clamping effect is achieved, low-concentration hydrochloric acid liquid at the position of the extrusion groove is extruded through the extrusion plate, and the low-concentration hydrochloric acid ...

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01-08-2023 дата публикации

Stainless steel round bar surface polishing treatment device

Номер: CN116512065A
Автор: ZHANG JIANJUN
Принадлежит:

The invention discloses a stainless steel round bar surface polishing treatment device, which relates to the technical field of surface polishing, and comprises a working frame, a first moving mechanism, a second moving mechanism, an angle adjusting mechanism, a clamping mechanism and a polishing mechanism, the first moving mechanism is fixedly installed on the side, perpendicular to the polishing supporting base, of the working frame, the angle adjusting mechanism is fixedly installed above the first moving mechanism, one clamping mechanism is fixedly installed above the second moving mechanism, and the other clamping mechanism is fixedly installed above the angle adjusting mechanism. The polishing mechanism is fixedly installed on the polishing supporting base and used for polishing the outer surface of the stainless steel bent rod or the stainless steel straight rod. According to the polishing device, the straight rod can be polished, the bent rod can also be polished, and the polishing ...

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29-08-2023 дата публикации

Drilling equipment for loess tunnel

Номер: CN116658072A
Принадлежит:

The invention relates to the technical field of tunnel drilling, in particular to drilling equipment for a loess tunnel. Comprising a vehicle body, a rotating disc arranged at the front end of the vehicle body in a horizontal swinging mode, a drilling arm arranged at the front end of the rotating disc in a vertical swinging mode, a crushing probe arranged at the front end of the drilling arm, an inclined shovel body arranged on the lower side of the front end of the vehicle body, shifting mechanisms arranged on the two sides of the upper end face of the inclined shovel body correspondingly, and a conveying mechanism arranged between the two shifting mechanisms. According to the drilling equipment, the vehicle body pushes the drilling equipment to advance, the tunnel wall in front of a tunnel is crushed through the crushing probe, crushed soil residues fall on the upper end face of the inclined shovel body, the stirring mechanism is used for stirring the soil residues on the upper end face ...

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11-07-2023 дата публикации

Economical duplex stainless steel and preparation method thereof

Номер: CN116411225A
Принадлежит:

The invention belongs to the technical field of stainless steel material application, and particularly discloses economical duplex stainless steel, which is prepared from the following components in percentage by weight: 0.02 to 0.06 percent of C, 0.5 to 1.2 percent of Si, 3.0 to 5.5 percent of Mn, 2.3 to 4.2 percent of Ni, 19.5 to 21.5 percent of Cr, 0.2 to 2.0 percent of Cu, 0.15 to 0.25 percent of N, 0.1 to 0.2 percent of W, 0.025 to 0.035 percent of P, 0.008 to 0.015 percent of S, 0.5 to 1.2 percent of Mo, 0.005 to 0.02 percent of B, 0.01 to 0.15 percent of rare earth Ce and the balance of Fe and inevitable impurities. The preparation method comprises the following steps: step 1, smelting to obtain a raw material solution; 2, the raw material liquid is guided into an open-type raw material liquid storage box; and step 3, carrying out ultrasonication on the raw material solution. And 4, stainless steel blank casting. The method has the beneficial effects that the duplex stainless steel ...

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18-04-2023 дата публикации

Block chain-based equipment control method and related equipment

Номер: CN115983850A
Автор: ZHANG JIANJUN, SHI JINQIAN
Принадлежит:

The invention provides an equipment control method based on a block chain and related equipment, the method is executed by node equipment on a block chain system, the method comprises the following steps: receiving a first transaction request sent by a target equipment control object, the first transaction request carrying a first control instruction for controlling the target equipment; determining a first control smart contract corresponding to the first control instruction; in response to the first transaction request, executing a first control smart contract, determining that the control frequency of the target equipment control object for controlling the target equipment is smaller than or equal to a first value, adding one to the control frequency of the target equipment control object for controlling the target equipment, and performing uplink storage on the first transaction request in a block chain system; and after the uplink storage is successful, sending the first transaction ...

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02-06-2023 дата публикации

Stainless steel bolt cold header

Номер: CN116197342A
Автор: ZHANG JIANJUN
Принадлежит:

The invention relates to the technical field of cold headers and discloses a stainless steel bolt cold header which comprises a base, a cold pressing mold is rotatably mounted in the middle of the top surface of the base, a placement groove is formed in the cold pressing mold, a bolt is placed in the placement groove, and a sliding groove is formed in the position, located on the lower side of the placement groove, in the cold pressing mold. And an air bag is fixedly connected to the bottom of the sliding groove, a sliding plate is fixedly connected to the top face of the air bag, a spring is fixedly connected to the bottom of the containing groove, a cylindrical cavity is formed in the position, located in the middle of the containing groove, of the interior of the cold pressing mold, an elastic plate is slidably connected to the interior of the cylindrical cavity, and a through groove is formed in the elastic plate. After bolt machining is completed, potential energy of the spring is ...

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