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15results about How to "Reduce interception" patented technology
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Dual-encryption data processing method and device, equipment, medium and product
PendingCN119094126Aimprove securityReduce interceptionKey distribution for secure communicationEngineeringData transmission
The embodiment of the invention discloses a dual-encryption data processing method and device, equipment, a storage medium and a product, which are applied to a data sending end, and are characterized in that when a data transmission request is detected to be initiated, a first symmetric key is generated, and a request parameter corresponding to the data transmission request is encrypted based on the first symmetric key to obtain an encrypted request parameter; the first symmetric key is encrypted based on a public key in the asymmetric key to obtain a first encrypted key, and the public key in the asymmetric key is generated and fed back by the request processing end; and sending the encryption request parameter and the first encryption key as the target transmission parameter in the data transmission request to the request processing end, so that the request processing end determines the response data after decrypting the target transmission parameter, and feeds back the encrypted response data after encryption processing, thereby improving the security of the data.
Owner:NANJING BESTWAY AUTOMATION SYST
High-reliability secure transmission method based on OTFS
ActiveCN119276674Aimprove performanceReduce interceptionError preventionMulti-frequency code systemsComputation complexityFrequency spectrum
The invention discloses an OTFS-based high-reliability secure transmission method, which comprises the following steps of: sequentially carrying out LDPC (Low Density Parity Check) coding, QAM (Quadrature Amplitude Modulation) mapping, SVD (Singular Value Decomposition) pre-coding, inverse symplectic finite Fourier transform, Hisenberg transform, R-CP (Reverse-CP) addition, D / A (Digital-to-Analog) transform and up-conversion on an information source sequence of a transmitting end to obtain a transmitting sequence, and transmitting the transmitting sequence through a wireless channel; after a receiving end of a legal user obtains a receiving sequence, down-conversion, A / D conversion, R-CP removal, Wigner conversion, symplectic finite Fourier transform, SVD decoding, single-tap equalizer processing, QAM demapping and LDPC decoding are carried out to obtain an information sink sequence. Through a precoding technology based on an OTFS equivalent matrix and an error control coding technology based on LDPC, high-reliability physical layer secure transmission is realized in a high-dynamic communication scene, the total throughput and the spectrum efficiency of a system are improved, the peak-to-average power ratio and the transmission bit error rate of the system are reduced, and meanwhile, overhigh calculation complexity and time-frequency resource overhead are not brought.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
A mountain road slope rockfall protection device
The application discloses a kind of mountainous area highway slope rockfall protection equipment, including supporting mechanism;The supporting mechanism includes protection plate, and further include at least one first linear degree of freedom;At least four The protection plate is hinged between each other and is folded mutually;The technology of the application can flexibly unfold and adjust the position, angle and form of protection plate according to actual situation by the design of supporting mechanism, abutting mechanism and carrying mechanism.This makes the protection device can adapt to different shapes of slope and various rockfall angle, improves the overall adaptability.M type of unfolding mode makes impact force more evenly distributed on each folding layer, thereby reducing the risk of damage caused by excessive local stress.This helps to prolong the service life of protection plate, reduces maintenance cost.M type of unfolding mode makes the side with acute angle face the side of mountainous area slope rockfall, this design can better intercept and block rockfall.
Owner:CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD
Dynamic baud rate communication-based electronic control unit (ECU) unauthorized swiping prevention method, device and equipment and medium
PendingCN119484407Aimprove securityPrevent tamperingSecuring communicationBus networksCommunicating JunctionEmbedded system
The invention discloses an ECU unauthorized swiping prevention method, device and equipment based on dynamic baud rate communication and a medium. The method comprises the steps that after a data flashing instruction is received, an upper computer is in communication connection with an ECU based on a first baud rate; after the upper computer is successfully connected with the ECU, the upper computer and the ECU carry out baud rate negotiation to obtain a successfully negotiated second baud rate; and the upper computer performs security access and data flashing on the ECU based on the second baud rate. According to the method and the device, the Baud rate of CAN communication is negotiated before data flashing is performed on the ECU by using the CAN bus, and if the communication Baud rate of the ECU cannot be determined by the upper computer, external personnel cannot violently crack a security access algorithm of the ECU through an exhaustion method and the like, so that the security of the ECU is greatly improved, and the situation that the ECU is stolen after entering the market can be effectively avoided.
Owner:WEICHAI POWER CO LTD
DNS iterative query method and product
PendingCN119583507AReduce the number of external transmissionsImprove privacy protectionSecuring communicationDomain nameTheoretical computer science
The invention discloses a DNS (Domain Name Server) iterative query method and a DNS iterative query product, and aims to solve the problem that a user query behavior is easy to track and analyze due to the fact that user privacy protection is not fully considered when a DNS query is processed in the prior art. In the process of querying the superior authoritative server of the domain name upwards step by step through the DNS resolver, the QNAME sent each time is a reduced domain name of an original complete domain name, and the QTYPE is other query types different from the original query type; the QNAME sent to the final authoritative server is the original complete domain name, and the QTYPE is the original query type. According to the method, the user privacy protection is enhanced by reducing the data transmission quantity, and the number of times of transmitting complete information of the user to the outside is reduced by minimizing the query domain name and confusing the query types, so that the risk that the privacy of the user is exposed is effectively reduced.
Owner:INTERNET DOMAIN NAME SYST BEIJING ENG RES CENT
Humidifier based on ultrasonic technology and anti-scale and anti-skid structure thereof
InactiveCN119146501Aguaranteed cleanlinessEfficient removalLighting and heating apparatusSpecific water treatment objectivesSuspended particlesUltrasonic technology
The invention discloses a humidifier based on an ultrasonic technology and an anti-scale and anti-skid structure of the humidifier, and relates to the technical field of humidifiers. The technical problem that the inner wall of the humidifier is easy to form scale and is satiny is solved. The humidifier based on the ultrasonic technology comprises a main body, an air outlet nozzle and a water injection opening are formed in the upper surface of the main body, the top end of the water injection opening is in threaded connection with a cover body, a water injection hole is formed in the water injection opening, a filter element is detachably installed at the water injection hole, added water is filtered through the filter element, and the water injection opening is communicated with the water outlet nozzle. Suspended particles and part of mineral substances in water can be effectively removed, when water molecules are not discharged in time and are deposited on the inner wall of the atomizing chamber, the wiping roller can timely wipe off the water molecules and reduce the formation of scale, and the inner wall of the humidifier is prevented from being satiny.
Owner:MAANSHAN CHUANGLUYUAN ENVIRONMENTAL PROTECTION MASCH EQUIP CO LTD
Vehicle-mounted active air inlet grille
Owner:CHANGSHU INTIER AUTOMOTIVE INTERIORS CO LTD
Off-line voice cross-device control method, device, equipment, medium and product
PendingCN119541488Areduce dependencenot affectedData switching by path configurationSpeech recognitionMachine controlSoftware engineering
The invention relates to the technical field of off-line interaction, and provides an off-line voice cross-device control method and device, equipment, a medium and a product, the method is applied to voice equipment, and the method specifically comprises the following steps: in an off-line state, obtaining a user voice instruction; a controlled device and a control instruction are determined according to the user voice instruction; the control instruction is sent to the controlled device, and an execution result is fed back to the user according to the state of the controlled device within the preset time; through the above mode, on the premise that the equipment is not networked, cross-machine control of other equipment can be realized through offline voice recognition and offline communication technologies, more application scenes are adapted, and more convenience and security are provided for users.
Owner:MIDEA GRP (SHANGHAI) CO LTD +1
Ion mixed membrane assembly and preparation method thereof
PendingCN119425390AIncrease the solute contentReduce osmotic pressureSemi-permeable membranesGeneral water supply conservationReverse osmosisMechanical engineering
The invention discloses an ion mixed membrane assembly and a preparation method and relates to the technical field of reverse osmosis membranes. A partition part is arranged in an inner cavity of the water guide pipe and divides the inner cavity of the water guide pipe into a water inlet cavity and a water outlet cavity; a plurality of outflow holes communicated with the water inlet cavity and a plurality of inflow holes communicated with the water outlet cavity are formed in the outer side of the water guide pipe; according to the scheme, the water guide pipe and the membrane structure are improved, and the water guide pipe is divided into the water inlet cavity and the water outlet cavity; a mixing flow channel is formed in the membrane; a divalent salt solution is introduced from the upper end of the water guide pipe, enters the membrane pure water bag from the upper end of the water guide pipe, flows along the glue line direction, enters the lower end of the pure water pipe and is mixed with pure water to be produced, so that the solute content of produced water in the membrane page is increased, the osmotic pressure of the concentrated water side and the pure water side of the membrane page is reduced, and the flux is increased.
Owner:QICHENG (JIANGSU) PURIFICATION TECH CO LTD
Optical material and spectacle lens
An optical material containing: an organic dye (A) containing a porphyrin compound (a) represented by formula (A1); an organic dye (B) containing a porphyrin compound (b) represented by formula (B1); and a resin. In formula (A1), M represents cobalt or vanadium oxide, R1 represents a chlorine atom or a bromine atom, n represents 1 or 2, and R2 represents a phenyl group or a phenyl group substituted with an aromatic group or an aliphatic group having 1-7 carbon atoms. In formula (B1), M represents a divalent metal atom, a trivalent substituted metal atom, a tetravalent substituted metal atom, a metal hydroxide atom, or a metal oxide atom, and R3 and R4 each represent a hydrogen atom, a halogen atom, an aliphatic group having 3-10 carbon atoms, or an aromatic group which may contain a halogen atom. # imgabs0 #
Owner:MITSUI CHEMICALS INC
Mechanical arm power-assisted exoskeleton device
ActiveCN222494274UGuaranteed uptimeImprove stressProgramme-controlled manipulatorArmsElectric machineryDrive motor
The utility model discloses a mechanical arm assistance exoskeleton device, which relates to the field of mechanical arm assistance and comprises an inner clamping ring, the inner clamping ring is clamped and fixed on the outer side of a fixed end of a mechanical arm joint, the outer side of the inner clamping ring is connected with a fixed block, an outer ring is fixed on the outer side of the fixed block, and a pressure spring is sleeved on the outer side of the outer ring. A sliding block is arranged at one end of the pressure spring, when the mechanical arm rotates downwards, the sliding block is driven to rotate on the outer ring, the sliding block can compress the pressure spring arranged on the outer ring in a sleeving mode, the pressure spring serves as an energy storage device, and the stress condition of a mechanical arm joint is improved through compression and release of the pressure spring; and the pressure spring can enhance the counter-acting force given by the exoskeleton, so that the driving motor of the collaborative robot can be helped to overcome the gravity, shaking is reduced, and the overall operation effect of the mechanical arm is improved.
Owner:TIANJIN JIKA ROBOT TECH CO LTD
Road traffic public security checkpoint monitoring system
PendingCN119091642Aquality improvementimprove clarityImage enhancementImage analysisImaging qualityRapid processing
The invention relates to the technical field of smart cities, in particular to a road traffic public security checkpoint monitoring system, which comprises a vehicle detection module, a processing module, a transmission module and a central management module, and is characterized in that the processing module is connected with the vehicle detection module, and the transmission module is connected with the processing module and the central management module; and the vehicle detection module realizes accurate detection of the vehicle. The processing module improves image quality, high image definition and stability and ensures the stability and reliability of the system, the transmission module ensures real-time transmission of vehicle information and encrypts transmission data, and the center management module quickly processes and analyzes mass vehicle data and extracts valuable traffic management information, so that the traffic management system is provided with a real-time monitoring module and a real-time monitoring module. By introducing technologies such as radar, a sensor and video detection, the dependence on a ground induction coil is reduced, the complexity of construction and maintenance is reduced, more accurate vehicle detection information is provided, and the occurrence of false alarm and missing alarm conditions is reduced.
Owner:NANJING BUTIAN TECH IND CO LTD
A method and device for double optimization of cognitive jamming waveform and power based on reinforcement learning, equipment and medium
PendingCN122119827AAchieving joint optimizationAvoid interference and failureBiological modelsCommunication jammingInterference (communication)Wave shape
The present application relates to the field of communication, in particular to a method and device for double optimization of cognitive interference waveform and power based on reinforcement learning, equipment and medium, according to the configurable parameters of the interference device, the interference waveform library containing multiple interference waveforms is constructed; according to the current electromagnetic environment state information of the interference target to be interfered by the interference device, the optimal interference waveform is determined from the interference waveform library; under the premise that the optimal interference waveform remains unchanged, according to the current jam-to-noise ratio state of the interference target, the lowest power meeting the effective interference threshold is determined; according to the optimal interference waveform and the lowest power, the interference signal is generated. Through the technical means of constructing the interference waveform library, determining the optimal interference waveform according to the electromagnetic environment state, determining the lowest power meeting the effective interference threshold according to the jam-to-noise ratio state, and generating the interference signal according to the optimal waveform and the lowest power, the joint optimization of waveform and power is realized.
Owner:TIANFU JIANGXI LAB
A network isolation method for copying and pasting across terminals
ActiveCN118118269Bimprove securityReduce interceptionSecuring communicationData packRole-based access control
The present invention relates to the field of communication technology, and in particular to a network isolation method for cross-terminal copy and paste. The user identity is verified through a multi-level authentication mechanism to ensure that only authorized users can perform copy and paste operations; the copied and pasted content is encrypted and divided into multiple independent data packets for transmission, and each data packet uses a different encryption key to enhance data security; a role-based access control strategy is adopted to limit the operation authority for specific data according to user roles and permissions; a temporary access token is assigned for each copy and paste operation to increase the security of the operation; the server implements a content review and filtering mechanism before content transmission to effectively filter sensitive information; and a detailed operation log is recorded and audited. The present invention improves the flexibility and efficiency of operations while protecting data security by improving the security and privacy protection of cross-terminal copy and paste operations, improving access control and temporary access mechanisms.
Owner:GUANGZHOU BIAODIAN MEDICAL INFORMATION CO LTD
Automobile air-inlet grille with filtering structure
ActiveCN222179206UReduce interceptionEasy to assemble and disassembleDispersed particle filtrationPropulsion coolingStructural engineeringMechanical engineering
The utility model provides an automobile air-inlet grille with a filtering structure, which comprises an air-inlet grille and a grille filtering assembly, the rear side of the air-inlet grille is provided with the grille filtering assembly used for filtering automobile inlet air through screws, and the grille filtering assembly comprises a fixing frame, a filtering piece and a reinforcing piece. Compared with the prior art, the automobile filter has the advantages that the fixing frame and the reinforcing piece are arranged, the installation mode of inserting magnetic attraction is adopted, the filter piece can be conveniently disassembled and assembled, disassembly and cleaning in the later period are greatly facilitated, and due to the arrangement of the filter piece, in the automobile running process, the filter piece is convenient to disassemble and clean. The bristles on the multiple thin steel bars intersect with one another so that entering air can be filtered, especially impurities such as flying catkins can be effectively filtered, the blocking situation cannot occur, and the influence on automobile air inflow is avoided.
Owner:NINGBO RUIXIN AUTOMOTIVE TRIM CO LTD