154results about How to "Improve security level" patented technology

The invention relates to an encryption method, a decryption method, a word segmentation one-way encryption method, equipment and a medium. The method comprises the following steps: when plaintext service data is obtained, querying whether a memory stores a corresponding local service key or not; if it is queried that the memory does not store the corresponding local service key, signature verification information is generated, and the signature verification information and the master key identifier are sent to the master device; the signature verification information and the master key identifier are used for indicating that the master device generates a first ciphertext key based on a symmetric encryption algorithm and the master key identifier after verification based on the signature verification information and the master key identifier is passed, and generates a second ciphertext key based on an asymmetric encryption algorithm and the signature verification information; receiving a first ciphertext key and a second ciphertext key sent by the master device, and encrypting the plaintext service data by using the second ciphertext key to obtain ciphertext service data; and outputting the ciphertext service data and the first ciphertext key. Therefore, the security level of data encryption storage can be improved, and the availability of a fuzzy query function is guaranteed.

The invention discloses a data encryption method and device for eMMC storage equipment, and the method comprises the following steps: 1), obtaining an encryption feature according to the equipment unlocking information set by an authentication module for the first time and the unique ID serial number of hardware equipment; 2) processing and fusing the encryption features by SOC to obtain a feature matrix of an encryption key; 3) the SOC chip transmits the characteristic matrix to an encryption bridge chip, and the encryption bridge chip uses the characteristic matrix as a secret key for encrypting and decrypting eMMC data transmission; 4) when the user unlocks the equipment, the SOC generates a new feature matrix according to the unlocking information; and 5) matching similarity between the new feature matrix and the feature matrix stored in the encryption bridge chip, and if verification is passed, the SOC interacts with the eMMC through the bridge chip to carry out data writing or reading. By using the method of the invention, encryption, decryption and transmission of eMMC data are carried out, the data can be normally read only under the current equipment, and thus data protection of the equipment is realized.

The invention provides a hard disk activation method and authentication method, a solid state disk and a server, and the hard disk activation method comprises the steps: responding to an activation instruction sent by a user, and closing a debugging interface of the solid state disk; obtaining a random verification sequence randomly generated at the current moment, and calculating a random hash value of the random verification sequence; encrypting and packaging the serial number, the chip identifier, the random verification sequence and the random hash value of the solid state disk to obtain a first encrypted data packet; sending the first encrypted data packet to a server, so that the server verifies the solid state disk; and if a second encrypted data packet fed back by the server is received and a first verification result indicating that verification is qualified, a second verification result indicating that verification is qualified and the random verification sequence are obtained from the second encrypted data packet, triggering the solid state disk to execute an activation process so as to complete activation of the solid state disk. The hard disk activation method can improve the security level of hard disk activation.

The invention belongs to the technical field of security verification, and discloses an on-chain data security verification method and system. The method comprises the following steps: constructing a block chain network based on a cloud data center, and carrying out key generation and identity authentication on all nodes; encrypting and signing the real-time under-chain data based on the first node; based on an IFPS system, storing the encrypted real-time off-chain data, and generating a real-time on-chain data block; based on the block chain network, consensus is carried out on the real-time data transaction request, and link-up is carried out on the real-time on-chain data block; based on the second node, performing signature verification on the real-time signature data, and after the signature verification is passed, obtaining a real-time storage address; extracting the encrypted real-time off-chain data according to the real-time storage address, and decrypting the encrypted real-time off-chain data; and converting the real-time transaction record into a corresponding real-time transaction data block, and performing chaining. According to the invention, the problems of high cost, low efficiency and easy attack in the prior art are solved.

The invention relates to the technical field of data processing, and particularly discloses an enterprise service data analysis method and system based on cloud computing, and the method comprises the steps: carrying out the logic verification of data through a business logic rule, and dividing the data into coincidence logic data and non-coincidence logic data; based on the data conforming to the logic, calculating a timeliness offset coefficient of the data, and evaluating the timeliness of data updating; by comparing data records of the ERP system and the AP I interface, a consistency coefficient is calculated, and the consistency of data sources is evaluated; comprehensively analyzing the timeliness offset coefficient and the consistency coefficient to obtain an accuracy coefficient of the data, and dividing the data into accurate data or inaccurate data according to the accuracy coefficient; accurate data is sent to a cloud computing system for real-time updating, a Hash algorithm is used for carrying out Hash calculation on the data, and the integrity of the data in the transmission process is ensured by comparing Hash values before and after sending.

The invention discloses an edge computing encryption communication method and device, relates to the technical field of data transmission, and mainly aims to improve the security and efficiency of edge computing encryption communication. According to the main technical scheme, the method comprises the steps of collecting target data of edge equipment; encrypting the target data according to a preset encryption rule to obtain corresponding encrypted data, the preset encryption rule being used for representing an encryption rule for codebook transposition of the target data; and sending the encrypted data to a server, so that the server decrypts and stores the encrypted data based on a decryption mode corresponding to the preset encryption rule. The method and the device are used for edge computing encryption communication.

The present invention provides a vehicle and its power system. The power system of the vehicle includes a first fuse box, in which a plurality of first fuses are arranged, and the plurality of first fuses are arranged to be electrically connected to at least two of the vehicle's headlights, rear lights, door lock modules, wiper modules, steering systems, brake systems, vehicle gateway modules, central controllers, collision controllers, and battery management systems in a one-to-one correspondence. The power system integrates the fuses of functional devices of concern after a collision and places them centrally in the first fuse box, and these functional devices of concern after a collision use separate first fuses respectively, so that the safety level of the vehicle is higher.

The invention discloses an intelligent network connection automobile communication method and system and a related device, and belongs to the field of intelligent network connection automobiles, and the method comprises the steps: generating a quantum true random number, and storing the quantum true random number in a ciphertext form to form a quantum true random key; receiving a key request of the quantum encryption service platform, and synchronizing the quantum true random key to the quantum encryption service platform; generating local plaintext data based on the quantum true random number; encrypting local plaintext data by adopting an algorithm based on a quantum key to obtain a ciphertext, and transmitting the ciphertext to a quantum encryption service management cloud platform; and receiving a data or operation command issued by the quantum encryption service management cloud platform. The intelligent connected automobile communication method based on quantum fusion encryption shows application potential and wide market prospect in the field of intelligent connected automobiles by virtue of the advantages of high security, physical randomness, ultra-long distance communication capability, big data transmission capability and the like.

The invention discloses a flight control device, an aircraft control method and a vertical take-off and landing aircraft, and relates to the technical field of aircraft control. A main manipulator configured to receive manipulation information input by a pilot; the backup manipulator and the main manipulator are independently arranged relatively, and the backup manipulator is configured to receive manipulation information input by a pilot; the control system is configured to identify a target manipulator from the main manipulator and the backup manipulator, generate a vector control instruction mapped with the manipulation information by using a signal corresponding to the manipulation information received from the target manipulator and combining a preset manipulation mapping relation, and control the target manipulator according to the vector control instruction. And controlling the aircraft to perform vector motion according to the vector control instruction. According to the scheme, the complexity of aircraft control can be effectively reduced, and the safety of aircraft control is improved.

According to the aircraft front wheel turning control valve fault detection method, a fault detection program resides in a turning control unit, and the fault detection program comprises a fault detection condition judgment module and a fault detection instruction sending module. The fault detection condition judgment module is used for receiving a pressure signal of a hydraulic system, a wheel load signal of an undercarriage folding and unfolding system, a speed signal of a brake system, a turning release signal of a turning release switch and a fault signal of a front wheel turning system; the fault detection instruction sending module sends a turn-off instruction to a turn-off valve of the turning control valve and sends a turning instruction to a servo valve of the turning control valve, if the servo valve cannot control the action of a turning mechanism and enables front wheels not to deflect, it is indicated that the turn-off valve is in a normal working state, and if the servo valve controls the action of the turning mechanism and enables the front wheels to deflect, it is indicated that the turn-off valve is in a normal working state. And indicating that the shut-off valve is in a hidden fault state.

The invention relates to the technical field of data security management, in particular to a data security assessment system and method and a storage medium, and the system comprises a data security assessment platform, a potential risk division unit, a data risk analysis unit, a periodic loss analysis unit, a storage performance analysis unit and a management response unit. According to the method, data security level assessment feedback analysis is carried out on the management information, meanwhile, the storage risk of the data is analyzed, so that storage security management is carried out on the current storage data, and analysis is carried out from the aspect of loss change of the current storage equipment under long-term use; according to the method, the current storage device is used for acquiring the influence condition of the current storage device on the data storage security and the like, and the storage security performance is evaluated and analyzed in a layer-by-layer progressive manner, so that on one hand, the security and the security level of the current storage data can be intuitively known, and on the other hand, reasonable and targeted data storage management can be carried out according to the displayed numerical value.

The utility model relates to the technical field of active humidity protection of a battery management system, and discloses a protection circuit and a battery, the protection circuit is arranged in the battery, the protection circuit comprises a temperature and humidity sensor, an acquisition unit and a control unit, the output end is connected with the first input end of the acquisition unit; the second input end of the acquisition unit is connected with the cell of the battery, the communication end of the acquisition unit is connected with the communication end of the control unit, and the control end of the acquisition unit is connected with the output end of the control unit; the output end of the control unit serves as the output end of the battery. Active protection can be carried out according to the humidity condition in the battery, potential safety hazards caused by the fact that the humidity in the battery is too high and insulation is reduced are avoided, meanwhile, the effectiveness of humidity data can be judged, battery humidity protection action false triggering is prevented, and protection reliability is improved.

The application provides a kind of active safety control method and device of vehicle.When dangerous target appears in front of the vehicle, the active safety control method includes: according to whether brake system and AEB module have fault, AEB fault condition is set to allow triggering or prohibit triggering;According to whether steering system and AES module have fault, AES fault condition is set to allow triggering or prohibit triggering;According to the vehicle speed of the vehicle, AEB speed condition is set to allow triggering or prohibit triggering, and AES speed condition is set to allow triggering or prohibit triggering;According to TTB_limit, TTB_trigger, TTT_limit, TTT_trigger and collision time, AEB collision time condition is set to allow triggering or prohibit triggering, and AES collision time condition is set to allow triggering or prohibit triggering;When multiple AEB conditions are all allowed to trigger, the AEB module can be triggered to execute AEB function;When multiple AES conditions are all allowed to trigger, the AES module can be triggered to execute AES function.In this way, the triggering of active safety function is accurate and safe, and the connection between functions is smooth.

This invention discloses a Pickering emulsion based on silk fibroin self-assembled particles and its preparation method. The preparation method includes the following steps: adjusting the pH of the silk fibroin solution to 4.0-4.5, adding NaCl to a final concentration of 0.05-0.1 mol / L, mixing, and then heating to 40-50 °C and allowing it to stand at a constant temperature. Using the obtained silk fibroin self-assembled particle dispersion as the aqueous phase and vegetable oil as the oil phase, the mixture is mixed with excipients and homogenized by high-speed shearing to obtain a primary emulsion. This primary emulsion is then treated by high-pressure microfluidic jet to obtain the Pickering emulsion based on silk fibroin self-assembled particles. This method requires no chemical modification or exogenous reagents, is green and simple, and does not use organic solvents. It can prepare emulsions with high biosafety and high storage stability without emulsifiers, improving process safety and scalability, and broadening its application in the food, cosmetics, and biopharmaceutical fields.

The invention discloses an electronic barometer and an air pressure measurement method, and relates to the technical field of air pressure measurement, the electronic barometer comprises a barometer disc and a barometer base, the barometer disc comprises a circuit board, a pointer electrode and a bourdon tube, the circuit board is provided with an MCU microprocessor, a signal detection circuit and a plurality of PCB scale electrodes which are uniformly distributed at intervals in an arc shape, and the PCB scale electrodes are arranged on the circuit board. The signal detection circuit and the PCB scale electrodes are electrically connected with input and output ports (also called I / O ports) of the MCU microprocessor respectively, and the pointer electrode is electrically connected with the signal input end of the signal detection circuit through a Bourdon tube and a metal shell of the electronic barometer. The pointer electrode is fixed on the bourdon tube or linked with the bourdon tube; the pointer electrode and the bourdon tube are both made of conductive metal materials. The multifunctional electronic barometer provided by the invention is simple in structure and low in cost, and is very excellent in cost performance in the field of MPa-level high-pressure application.

An automotive arithmetic system (SY) includes: a main arithmetic unit (110) that generates a travel route using deep learning based on an output from a vehicle external information acquisition device (M1); an auxiliary arithmetic unit (120) that generates a rule-based travel route in a free space without using deep learning; a safe route generation unit (300) that generates a safe route, which is a route that the motor vehicle takes until the motor vehicle stops at a safe stop position; and an override processing unit (410) that prioritizes one of the travel route generated by the main arithmetic unit (110), the rule-based travel route generated by the auxiliary arithmetic unit (120), or the safe route generated by the safe route generation unit (300), and determines a target motion of the motor vehicle so that the motor vehicle travels on the prioritized route.

The invention discloses an electronic information security storage method and system, particularly relates to the technical field of information storage security, and is used for solving the problem of poor stability and consistency of generating an encryption key by using a PUF (Physical Unclonable Function) under complex and changing environmental conditions in the prior art. Generating a PUF response by using hardware equipment in a controlled environment so as to obtain an initial encryption key; continuously monitoring the stability of the PUF response in the current environment by adopting a quantum decoherence analysis technology based on quantum behavior simulation; environment data around the hardware equipment are collected in real time and compared with a preset environment threshold value, and whether the environment is suitable or not is evaluated; a self-similarity model is constructed through segmented sampling and Hurst index analysis of the PUF response signals, and the stability and consistency of the PUF response signals are further evaluated; and finally, whether the encryption key is generated or not is judged through comprehensive analysis, so that the security of generation and management of the key is remarkably improved.

This invention provides a fingerprint-secure login method and terminal for cloud computers. The method includes: repeatedly collecting fingerprint data from the same finger of a user and encrypting the fingerprint data to obtain encrypted fingerprint data; sending a first storage request to a cloud server, the first storage request including the encrypted fingerprint data; when logging into the cloud computer corresponding to the cloud server, collecting the user's current fingerprint data, encrypting the current fingerprint data, and sending a login request to the cloud server, the login request including the current encrypted fingerprint data; and unlocking the cloud computer corresponding to the cloud computer account upon receiving a verification success message from the cloud server. This invention effectively solves the problems of inconvenience and low security level of requiring account and password input during login in existing technologies.

The present invention relates to the technical field of logistics equipment, and specifically to a safety protection mechanism for a stereoscopic warehouse handling robot, including a stacker carrying platform, the stacker carrying platform including a left side plate, a right side plate and a bottom side plate connected between the bottoms of the left and right sides, a left guide rail assembly for the left wheel part of the stereoscopic warehouse handling robot to move forward and backward is installed on the right side of the left plate, and a right guide rail assembly for the right wheel part of the stereoscopic warehouse handling robot to move forward and backward is installed on the left side of the right plate, the left guide rail assembly has a left deformable part that can sink to form a left wheel part of the stereoscopic warehouse handling robot to be inserted downward to lower the center of gravity of the stereoscopic warehouse handling robot, and can rise for the stereoscopic warehouse handling robot to walk, and the right guide rail assembly has a right deformable part that can sink to form a right wheel part of the stereoscopic warehouse handling robot to be inserted downward to lower the center of gravity of the stereoscopic warehouse handling robot, and can rise for the stereoscopic warehouse handling robot to walk, and has better protection.

The invention relates to the field of computer vision, in particular to a human face deep forgery detection method based on StreamLit and a multiple attention deep forgery detection network. On the basis of an OfficientNetv2s network in combination with a Haar feature algorithm and a face-recovery method in dlib, real-time face detection can be carried out on embedded equipment through a 3D depth camera, and multi-terminal deployment is supported. The feature extraction capability of the model is enhanced by adopting an attention mechanism, and deep counterfeiting detection is performed through an MAD method, so that an excellent effect is achieved. Experimental results show that the detection performance of the system on data sets such as WIDER FACE, Celeb-DF, DFDC and the like is remarkably superior to that of other existing methods, and meanwhile the system has high robustness and real-time performance. The technology can be effectively applied to face video forgery detection and identity verification, and is suitable for mobile terminal and embedded equipment scenes.

The application discloses an inter-application data encryption communication method based on a dbus bus, an inter-application data encryption communication system based on the dbus bus, an inter-application data encryption communication device based on the dbus bus, an electronic device, a storage medium and a vehicle, and comprises the following steps: a session is created between a server and a client, and a communication session process is executed; a communication daemon process is executed to perform communication authentication processing on the communication session process; the communication authentication processing comprises communication encryption through an authorization certificate and an authorization key, and authentication of a session data unit is performed according to the certificate and the key; if the authentication result is true, the session data unit is retained in the communication session process; and if the authentication result is false, the session data unit in the communication session process is blocked. Through the above scheme, the authorization certificate and the authorization key are double-authenticated, and the security level of the communication connection is improved relative to the original encryption mode of the digital certificate or the digital key alone.

The utility model discloses a video bidirectional data communication terminal with quantum encryption, which belongs to the technical field of quantum encryption, and comprises a data communication terminal, a power supply module and an interactive interface, the data communication terminal is in communication connection with the power supply module, and the data communication terminal is in communication connection with the interactive interface. According to the utility model, by integrating the quantum key distribution module, the terminal can establish an encryption key which cannot be cracked between two communication parties, so that all known and potential eavesdropping threats including future quantum computers are effectively resisted, and absolute confidentiality of video communication contents is ensured; the data encryption module is closely integrated with the video coding and decoding module and the bidirectional communication module, so that each link from video acquisition to transmission is protected by quantum-level encryption, all communication contents of videos, audios and data are covered, and the security level of the whole system is improved.

This invention discloses a lightweight joint estimation method for battery state of charge (SOC) in resource-constrained MCUs, comprising: extracting the weight matrices and bias terms of each layer of a trained LSTM time-series estimation network and flattening them into a one-dimensional static constant array; constructing a custom pure C language matrix operation library independent of a third-party AI inference framework on the target microcontroller, employing a global static memory pool management strategy, and defining a unified structure containing the number of matrix rows, columns, and one-dimensional floating-point data pointers at the C language level; the target microcontroller calling the custom pure C language matrix operation library to directly read the one-dimensional static constant array to complete the forward inference calculation of each gate unit of the LSTM network and output the prior SOC observation value; and calling the custom pure C language matrix operation library to perform state equation iteration of the Kalman filter and output the SOC estimation result. This invention enables the safe and efficient operation of complex coupled algorithms on a very low computing power platform.

The present invention relates to the field of network security technology, and discloses a network security testing method based on big data, comprising: obtaining target system data, forming analysis data according to the target system data, forming adjustment data according to the analysis data, and adjusting the target system data and the analysis data according to the adjustment data. The network security testing method based on big data determines whether the current operator is the device holder himself, and adjusts the user's use authority accordingly, automatically adjusts the files of the user's system memory disk to keep the user's system memory disk stable, automatically adjusts the downloaded files to the memory disk corresponding to the same type of files, keeps the user's deleted files confidential, improves the user's network security level, prevents the user's files from being maliciously deleted by others, and prevents the user's system from being unstable due to excessive memory usage, and prevents file conflicts from causing system instability.

The application discloses a laser safety control system and a control method thereof, and relates to the technical field of lasers.The laser safety control system comprises a multimode main control device and at least one single-mode main control device, wherein the multimode main control device is electrically connected with the single-mode main control device, is used for receiving two emergency stop interlocking signals input through an external control board, and is used for coupling the two emergency stop interlocking signals with a pulse width modulation pulse signal to form a double-channel emergency stop interlocking pulse signal and transmitting the double-channel emergency stop interlocking pulse signal to the single-mode main control device; and the single-mode main control device is used for receiving the double-channel emergency stop interlocking pulse signal and controlling a laser according to the double-channel emergency stop interlocking pulse signal. Therefore, the safety control logic of the laser can be optimized, the safety level of the laser control is improved, the workpiece is prevented from being damaged, the machining efficiency is improved, and the safety of equipment and personnel is ensured.

The utility model discloses a liquid-cooled container control system, which comprises a cabinet main body and a double-pump circulation module integrated in the cabinet, the double-pump circulation module comprises a main liquid pump and a standby liquid pump, the main liquid pump is driven by a frequency converter, the standby liquid pump can be driven by a power frequency power supply or the frequency converter, and a multipoint temperature acquisition module is arranged in the cabinet main body. By adopting the double-pump redundancy design, the standby pump can be seamlessly connected within 200 milliseconds when the main pump breaks down, the continuous operation of the system is ensured, the availability of the system is as high as 99.99%, meanwhile, the main liquid pump is provided with the frequency converter, the rotating speed is dynamically adjusted according to real-time pressure feedback, and compared with a traditional fixed-frequency pump, energy is saved by 20-30%. Multi-point temperature collection and closed-loop control are achieved, accurate temperature control is achieved, energy consumption is further reduced, a liquid leakage detection sensor is matched to trigger a signal at the moment of liquid leakage, a power source is cut off immediately through a PLC, an alarm is given, and electric short circuit and equipment damage are effectively avoided through millisecond-level response.

The utility model discloses a sampling cabinet which comprises a cabinet body, and the interior of the cabinet body is divided into two placing chambers by a partition plate; two cabinet doors are arranged on the front side of the cabinet body. The multifunctional disinfection cabinet is characterized by further comprising an ultraviolet disinfection device. A transparent tube is arranged on the partition plate; the rear end of the transparent tube is an open end and extends to the rear part of the cabinet body; the ultraviolet disinfection device comprises a lamp holder and an ultraviolet lamp tube; and the ultraviolet lamp tube is inserted into the transparent tube. The ultraviolet disinfection device of the sampling cabinet disclosed by the utility model can be used for simultaneously carrying out ultraviolet sterilization and disinfection on the two placing chambers in the cabinet body, and is more energy-saving due to bilateral irradiation; and the ultraviolet lamp tube is arranged in the transparent tube and is not exposed, so that the risk of electric leakage can be avoided, the device is safer, and meanwhile, later disassembly and replacement are also facilitated.

A buzzer sounding structure for a wrist type near-electricity early warning device comprises an upper shell (1), a lower shell (2) and a circuit board (3) arranged between the upper shell (1) and the lower shell (2), a patch type buzzer (4) is arranged on the circuit board (3), and the buzzer sounding structure is characterized in that a sound outlet hole (5) is arranged on the lower shell (2) at a position opposite to a sounding hole of the patch type buzzer (4) arranged on the circuit board (3). Alarm sound emitted by the patch type buzzer (4) can be emitted through the sound outlet hole (5) to meet the standard requirement, so that a vibration module is omitted, and energy is saved. The sound alarm is adopted, so that the service life of the battery is greatly prolonged.

The utility model discloses a kind of intelligent cat litter box with anti-pinch cat multiple protection strategy belongs to pet intelligence article technical field.The cat litter box includes drum structure, drum driving motor, main control unit MCU, infrared detection unit, weight detection unit and current detection unit.Infrared detection unit is used to detect pet in and out, weight detection unit is used to judge whether pet is in basin, current detection unit is used to real-time monitoring motor load current.When infrared or weight detection unit detects pet existence, main control unit suspends drum motor operation;When motor current rises slope exceeds preset threshold, main control unit judges as cat event and immediately reversely rotates drum to loosen foreign matter.The utility model is combined by multiple sensing detection and current characteristic identification, realizes quick protection and abnormal identification, significantly improves the safety and reliability of intelligent cat litter box.

The utility model discloses an intelligent watch convenient to use, relates to the technical field of intelligent watches, and comprises a watch outer frame, a watch head and a watchband, a limiting hole and a sliding groove strip are sequentially arranged above a back plate of the watch head, an I-shaped sliding block is connected in the sliding groove strip in a sliding mode, a first through hole is formed in the middle of the I-shaped sliding block, and a second through hole is formed in the middle of the first through hole. And an I-shaped convex column penetrates through the interior of the first through hole, and an adjusting rod is arranged at one end of the I-shaped convex column. According to the utility model, under the action of the chute strip, the I-shaped slide block, the adjusting rod, the connecting part and the threaded hole, the movable rod in the adjusting rod and the connecting part are rotated, and the connecting part is installed in the threaded hole, so that the watch head and the watch outer frame are inclined and are stably supported on the wrist; in this way, the user does not need to lift up the hand wearing the product to check the navigation content displayed on the product during riding, the structure is convenient to use, the safety level of using the product for navigation during riding is greatly improved, and high practicability is achieved.