4534results about How to "Ensure safety" patented technology

The invention provides a remote vehicle control method, a TSP (telematics service provider) backstage system and a vehicular terminal. The remote vehicle control method includes receiving a remote control request transmitted by a mobile terminal, wherein the remote control request comprises text-massage identifying codes, identification codes and control commands; verifying validity of the mobile terminal according to the text-message identifying codes and the identification codes; looking up identification codes of the vehicular terminal corresponding to the received identification codes when the mobile terminal is verified as a valid user; encrypting the received control commands and transmitting to the vehicular terminal after determining the vehicular terminal corresponding to the lookup identification codes stays in an operating state, so that the vehicular terminal executes operations indicated by the control commands after judging that the control commands are safe. By the aid of the remote vehicle control method, vehicles can be flexibly and effectively controlled, and safety coefficient is high.

Embodiments in the invention provide an unlocking method for an electronic door lock, an electronic door lock and an electronic door lock system, relating to the field of electronic communication. The invention enables workers to open a lock in time and unnecessary unlocking cost to be avoided under the condition that security is guaranteed. The unlocking method comprises the following steps: sending key acquiring request information to a key management central server; receiving unlocking secret key sent by the key management central server and matching with the current door lock secret key of an electronic door lock; sending the unlocking secret key sent to the electronic door lock, wherein, when the current door lock secret key successfully matches with the unlocking secret key, the electronic door lock is opened. The embodiments in the invention are applicable to electronic locks.

The invention discloses a transaction verification method and system based on a block chain. The method comprises the following steps: when a node on the block chain processes a transaction with a transaction type and a transaction amount, decrypting an original balance of each transaction side through first decryption parameters sent through the transaction sides, obtaining new balances by calculating each original balance, obtaining encrypted new balances by encrypting the new balances through encryption parameters sent by the transaction sides, and broadcasting each encrypted new balance on each node of the block chain; when the node of the block chain receives the broadcast encrypted new balance of each transaction side, starting an intelligent contract to perform composite number verification; if the composite number verification succeeds, performing updating based on each corresponding encrypted new balance; and invoking an external negative balance verification system to perform negative balance examination on each account balance, and if the negative balance examination succeeds, determining that transaction verification succeeds. According to the invention, whether the transaction is normal can be verified, and the transaction processing speed on the block chain can also be guaranteed under the condition that the system overhead is not occupied.

The invention discloses a method for realizing the intelligent tour-inspection of a power tower based on a miniature multi-rotor unmanned helicopter, and belongs to the technical field of tour-inspection of transmission lines. The method comprises the following steps of: tower modeling, inspection viewpoint planning, autonomous navigation, data acquisition and failure analysis, wherein the tower modeling step comprises a data acquisition process, a tower positioning process, a security zone division process and a security zone evaluation process; the inspection viewpoint planning step refers to a process of solving an optimal observation viewpoint according to related constraint conditions; the autonomous navigation step comprises a basic navigation sub-step and an accurate navigation sub-step; the data acquisition step refers to a process of transmitting related data back to a ground station by using the miniature multi-rotor unmanned helicopter; and the failure analysis step refers to a process of performing analysis, judgment and diagnosis according to the data transmitted back to the ground station by tour-inspection and decision making personnel. The method has the advantages of high safety, detection accuracy, tour-inspection efficiency and flexibility, low cost and high operability.

The invention relates to the field of electromagnetic wave shielding, in particular to a composite coating electromagnetic shielding paint and a composite coating electromagnetic shielding material prepared therefrom. The composite coating electromagnetic shielding paint comprises a conducting layer paint with a reflection function and a wave-absorbing layer paint with an absorption function, wherein the reflecting layer paint comprises the components of polymer emulsion, a conducting filler, a coupling agent, a defoaming agent, a wetting agent, a film forming assistant, a thickening agent and water; and the wave-absorbing layer paint comprises the components of polymer emulsion, a wave-absorbing filler, a coupling agent, a defoaming agent, a wetting agent, a film forming assistant, a thickening agent and water. The invention also discloses a composite coating electromagnetic shielding material prepared by coating the paint. The material is prepared by the steps of firstly coating the conducting layer paint on the surface of a base material, drying, then coating the wave-absorbing layer paint and the like. In the invention, the electromagnetic shielding material prepared by using the mode of compounding the wave-absorbing layer with the reflecting layer effectively reduces secondary pollution caused by the reflection of electromagnetic radiation and has wider shielding wave band in comparison to a pure wave absorbing coating; and the use of water emulsion reduces the production of harmful volatile matters and guarantees body safety.

An electrolyte for a lithium secondary battery which has a non-aqueous organic solvent including a γ-butyrolactone and optionally a cyclic carbonate, an ester compound having an electron withdrawing group, and at least two salts. The lithium secondary battery including the electrolyte has good safety and good storage characteristics at high temperature.

The invention relates to a high-precision non-contact 3D surface measurement device. The device comprises a laser measurement sensor, an X-direction moving unit, a Y-direction moving unit, and a Z-direction moving unit. The invention provides a high-precision non-contact measurement device and the measurement method. The invention can be used for high-precision and rapid measurement on the surface of hard material, soft material and mirror surface material without damage, so as to obtain surface type, size, surface state and other data.

The invention discloses a data preservation method and system based on a block chain. The method comprises the following steps: a specific user terminal sending a to-be-preserved target file to a center server terminal, the center server terminal performing a data preservation operation on source data of a target file to acquire a preserved data fingerprint of the source data; the center server terminal storing a target file ID corresponding to the target file and the source data, sending the target file ID corresponding to the target file and the preserved data fingerprint to other user terminal and the specific user terminal connected with the block chain; the other user terminal and the specific user terminal connected with the block chain receiving and storing the target file ID corresponding to the target file and the preserved data fingerprint. Each user terminal connected with the block chain only saves the fingerprint information and does not save the source data, and the center server terminal only saves the source data and does not save the fingerprint information; therefore, the source data and the fingerprint are separated, and security of the preserved data is guaranteed.

The invention discloses an intelligent charger with an output voltage changing function. The intelligent charger comprises a processing unit, a power unit and an interface unit. The processing unit is connected with the power unit and the interface unit. The power unit is connected with the interface unit. The interface unit is connected with an external intelligent terminal. The processing unit conducts handshake and communication with the intelligent terminal through the interface unit and controls the output voltage of the power unit according to handshake and communication results so that the output voltage of the power unit can reach the requirements of the intelligent terminal. The intelligent charger can intelligently switch the output voltages according to the requirements of the intelligent terminal to charge the intelligent terminal and accelerate charging. The invention further discloses a charging method applied to the intelligent charger.

The invention discloses a high-accuracy target positioning method of an unmanned plane on the basis of multi-station measurement. The high-accuracy target positioning method comprises the following steps: determining a satellite receiver, an inertial measurement unit, a camera holder and a camera equipped on the unmanned plane; before the unmanned plane takes off, calibrating inner parameters of the camera; in the flying of the unmanned plane, selecting interesting target points, and adjusting the azimuth angle and the elevation angle of the camera holder to guarantee that the target points are in the viewing field in the set time; extracting out coordinates of homonymy points of targets in images shot at different times, and calculating the coordinates (X, Y, Z) of the target points in a world coordinate system; converting the (X, Y, Z) into longitude and latitude and geodetic height and finishing the target positioning process. The high-accuracy target positioning method disclosed by the invention has the advantages that a photoelectric reconnaissanle platform is not needed, and laser ranging is not needed, so that the self safety is effectively guaranteed, and the cost of measuring equipment is also reduced; simultaneously, the high-accuracy target positioning method has high positioning accuracy and wide application range, and has important practical significance in the field of high-accuracy target positioning of the unmanned plane.

A gearless, ropeless elevator according to the present invention includes a universal independent linear electromagnetic retarder as an essential component that will ensure safe and comfortable transit for passengers going up and down. By design sufficient number of independent retarders are securely fixed to the independent passenger cabin such that under free fall conditions due to power failure for example the gross weight of the gearless, ropeless elevator assembly will be counter balanced by the force generated in the retarders so permitting it to descend at a slow speed until resting on its buffers. The independent universal retarder unit which can also function as a motor includes not only a fail safe brake capable of slowing and stopping a gearless, ropeless elevator assembly but also a UPS unit capable of supplying the retarder with sufficient power for a few seconds to permit the independent cabin and passengers to slowdown comfortably from high speed. Both are fed from an onboard continuously charged battery unit which also provides supplies to the logic control circuits and switches.

The invention provides a system and a method for authenticating credible identities on the basis of safety chips. The method includes allowing a credible authentication server and a credible terminal to apply for platform certificates from the same credible third party; allowing the credible authentication server to add the credible terminal into registered terminal lists of the credible authentication server after the platform certificates are successfully applied, storing the corresponding certificate of the credible terminal and allowing the credible authentication server to add new users into registered user lists; allowing the users on the credible terminal to access the corresponding server after the credibility of platforms is authenticated and the identities of the users are authenticated. The credibility of the platforms is bidirectionally authenticated by the credible authentication server and the credible terminal. The identities of the users are authenticated so that the authenticity of the identities of the users can be verified. The platform certificates comprise platform identity certificates and platform encryption certificates. The system and the method have the advantages that the credibility of the platforms is authenticated by the aid of the safety chips, so that the authenticity of the identities of the authentication server and the terminal and the safety of the platforms can be mutually confirmed by the authentication server and the terminal, and the safety of user identity authentication procedures can be guaranteed.

The invention provides a remote medical rehabilitation system in a smart city. The remote medical rehabilitation system comprises a medical diagnosis module, a training terminal module, an exchange platform module, a signal recognition and monitoring module, a system safety and maintenance module, a network communication module, a network database module and a network information management module. On the basis of a concept of smart city and smart medical treatment, a rehabilitation training robot is combined with medical information management; aiming at the entire process from information management to rehabilitation training, functional requirements of medical rehabilitation training are met by one system.

The invention discloses a pressure release valve. The pressure release valve comprises a valve body and a valve element, the valve element is slidably assembled in the valve body and slides between a first position and a second position, when the valve element is located at the first position, the pressure release valve is closed, and when the valve element is located at the second position, the pressure release valve is opened; the valve body is provided with an elastic limiting structure, a groove is formed in the outer surface of the valve element, and when the valve element is located at the second position, the elastic limiting structure is embedded into the groove. After the pressure is released, the pressure release valve cannot reset automatically, safety of a cooking utensil applying the pressure release valve in the using process is guaranteed, meanwhile, a user can be reminded of conducting maintenance on the cooking utensil, and thereby use safety of the user is guaranteed. The invention further discloses a pot cover provided with the pressure release valve and an electric pressure cooker.

The invention discloses a safe and reusable single program initiation (SPI) peripheral interface circuit. The circuit comprises a data buffer, an interruption and direct memory access (DMA) control module, a register control module, an advanced peripheral bus (APB) Slave interface module, a clock fractional frequency module, a command resolving module and a safe transmission module, wherein the data buffer is used for buffering receive data (RXD) and transmit data (TXD); the interruption and DMA control module is used for supporting two different types of data processing modes, namely an interruption mode and a DMA mode; the register control module is used for allocating sequential control between a register and modules; the APB Slave interface module is used for interacting with a central processing unit (CPU) based on an APB; the clock fractional frequency module is used for generating 2-256 random fractional frequency clocks to an external device to realize flexible allocation of baud rate; the command resolving module is used for resolving a command from a host machine when working mode of an interface circuit is in a slave mode; and the safe transmission module is used for transforming transmission data from series connection to parallel connection and vice versa and guaranteeing data transmission safety by virtue of a cyclic redundancy check (CRC) algorithm and an automatic repeat request (ARQ) technology. The safe and reusable SPI peripheral interface circuit supports switch between a major mode and a slave mode, and guarantees the data transmission safety.

The invention relates to a cloud security storage and processing method and system for rail transit monitoring data. The system comprises a cloud security control server as well as a client, a data acquisition system and a cloud computing cluster connected with the cloud security control server. According to the method, data are ciphered, and a phenomenon that a user cannot decipher initial data without a public key is guaranteed, so that the privacy of the data is guaranteed; during operations such as access, enquiry and the like performed by the data acquisition system and the client on the cloud platform data, the cloud security control server is required to send requests, while the data acquisition system and the client cannot perform data access with the cloud platform directly; and the cloud security control server can conveniently configure and construct various data security schemes, such as authority management of user classification, backup management of monitoring data, management of different place clusters and the like, and the schemes can be directly completed on the control server. According to the cloud security storage and processing method and system for the rail transit monitoring data, storage and processing security of the rail transit monitoring data can be guaranteed.

The invention discloses a government services cloud access control method based on attribute encryption. A central authority determines all attributes of a system, permits or revokes attribute authority management authority, and authenticates administrative staff; an attribute authority receives the login of administrative staff in the jurisdiction thereof and is simultaneously responsible for attribute revocation of the administrative staff; a cloud server stores data and carries out semi-decryption on an encrypted file when a user sends out a data request; a data uploader makes an access control strategy according to the security level of the file, and encrypts and uploads the file after name signing; and an access user sends out a data access request and finally decrypts the encrypted file. By adopting the attribute encryption scheme, the loads caused by user attribute revocation and encrypted file updating are reduced, the trap door information capturing of the user is controlled, and attribute revocation is carried out on the user under the condition that the encrypted file is not changed; in addition, by utilizing the name signing and attribute encryption scheme based on the identity, the safety authority of the user and fine-grained access control are realized.

The invention discloses a method for cloud data confidentiality protection and access control. The method includes the specific implementation processes: adopting a symmetric cryptosystem correlation algorithm for realizing encryption of sensitive data, and storing the data in a cloud server in an encrypted form; and adopting a ciphertext-policy attribute-based encryption mechanism to realize protection of a data encryption key. An encrypted access policy can be formulated by a data owner as required, and only the data user satisfying conditions of the access policy can access to the encrypted sensitive data by decryption. Compared with the prior art, the method has the advantages that security of the data in a cloud storage system under the open environment is guaranteed under the premise that a cloud server provider is untrusted, security sharing of the sensitive data is realized, and huge computation overhead brought to the data owner by key distribution and data management can be reduced.

The invention relates to a digital certificate safety lock device and a digital certificate authentication system and method. The digital certificate safety lock device comprises a universal encryption and digital signature microcontroller, an audio plug and a first modulation and demodulation module, wherein the universal encryption and digital signature microcontroller is provided with an encryption and digital signature module and a storage for storing a digital certificate, a key of the digital certificate and encryption and decryption algorithms; and the first modulation and demodulation module is used for modulating data information from the encryption and digital signature module for transmitting through an MIC (Microphone) pole of the audio plug, demodulating a signal received from a first sound channel pole of the audio plug and transmitting the demodulated signal to the encryption and digital signature module. The digital certificate safety lock device is provided with a universal audio interface plug which has high university and adaptability and can support communication terminals such as mobile phones, tablet computers, PDAs (Personal Digital Assistants) or PCs (Personal Computers) and the like, with audio interfaces. Due to the functions of independent hardware signature, digital certificate encryption and the like, the security of application logon and transactions of Internet banks or enterprises can be ensured to the maximum extent.

The invention discloses a high-ground stress soft rock highway tunnel supporting method. The high-ground stress soft rock highway tunnel supporting method comprises the steps of: A. excavating upper steps, and carrying out anchor-plate retaining construction; B. erecting second I-shaped steel supports for the upper steps after ending anchor-plate retaining; C. building foamed concrete buffer layers for the upper steps; D. carrying out secondary injection concrete construction on the upper steps; E. excavating lower steps and erecting first I-shaped steel supports for the lower steps, and spraying concrete; F. pouring plastic concrete into the lower steps; G. erecting second I-shaped steel supports for the lower steps, and spraying the concrete; H. carrying out secondary lining construction on the lower steps; J. backfilling inverted arches; and K. carrying out secondary lining construction on the upper steps, that is, determining the erection position of a formwork by measurement lofting, carrying out arch crown backfill grouting by the concrete having the same grade with a tunnel lining, and dismantling a plug mold after the strength of the arch crown concrete is satisfied. The high-ground stress soft rock highway tunnel supporting method has an obvious effect on control on large deformation of a soft rock tunnel under a high-ground stress, is simple, convenient and easy and is simple in operation and low in cost.

The invention discloses a database access platform and access method, which solves problems of high requirements on technician, impalpable code and safety of traditional database operation mode. The platform mainly comprises an application access interface for supplying setting of database configuration information and feeding back database operation result; a data source acquisition unit for connecting corresponding database according to the database names in the configuration information; a database single table operation unit for calling corresponding table structure information according to the access parameters in the configuration information and executing corresponding SQL operation in combination with generation of SQL sentence; a database complex operation unit for calling corresponding SQL template according to the access parameter in the configuration information and executing corresponding SQL operation in combination with generation of SQL sentence. Because of shielding direct SQL operation, the platform facilitates developers unnecessary to concern detailed SQL sentence spelling and database operation and greatly reduces the technical requirements on developers.

The invention provides a vehicle software updating method. A vehicle comprises a vehicular computer and at least one intelligent device provided with software, wherein the vehicular computer and the intelligent device are connected through a wired network. The method comprises the following steps of: using an updating server stored with software, connecting the updated server with the vehicular computer by virtue of a wireless network, downloading the latest-edition software from the updated server, and installing the software into corresponding intelligent device in parking. The software updating method can be used for lightening the burden of an agency without the business of the agency, and can also better ensure the safety of vehicles as software updating is carried out in parking of the vehicles.

An application program control method based on a two-time signature verification technology is achieved by performing two times of signing and two times of signature verification on application programs on an android terminal. Security detection is performed on the application programs through a reliable third-party security detection mechanism, the application programs passing the detection will be signed by the third-party security detection mechanism, and then the signed applications are returned to developers. When the application programs are installed on the intelligent android terminal, security detection is performed on the application programs first to see whether the application programs are signed by the third-party security detection mechanism or not, and signatures are verified; if signatures of the third-party detection mechanism do not exist or the signatures cannot pass verification, installation of the application programs is refused. Through the technical scheme, the application program control method based on the two-time signature verification technology has the advantages that signature information is fixed through introduction of the third-party detection signatures and a security control module of the android terminal so that secure application programs can be downloaded and installed in an android system through multiple channels, and while security of the android terminal is guaranteed, a flexible and efficient application program verification scheme is provided.

The invention provides a distributed cryptograph full-text retrieval system. The system comprises a database, a login module, an enquiry module, a result set display module, a document management module, an index module, an audit management module, a user management module and an authorization management module, wherein the enquiry module comprises an enquiry word splitting module, an enquiry encrypting module, an enquiry sub module, an access control module, a cryptograph retrieval word Hash module, a result set merging module and a result set ordering module; and the index module comprises an index word splitting module, an index encrypting module, a constructed distributed index module and a cryptograph index word Hash module. The system encrypts and processes document information and stores the document information in a distributed mode, encrypts index words and distributes the encrypted index words to different servers to construct a distributed cryptograph index library, and adds graded access control to the index library so as to improve the security and validity of full-text retrieval. The system can realize the full-text information retrieval of the cryptograph under a distributed environment, ensures the security retrieval of sensitive data, and has the characteristics of strong security, high execution efficiency and strong expandability.

Various embodiments relate to a Cloud Data Center, a system comprising the Cloud Data Center, and a related method. The Cloud Data Center may include a logical customer edge router to send packets between addresses in a private enterprise network and addresses in a logical network within a cloud network. The logical network may have resources, known as virtual machines, allocated to the private enterprise network and may share a common IP address space with the private enterprise network. A directory at the Cloud Data Center may correlate the enterprise IP addresses of virtual machines with a cloud IP address and a location IP address within the logical network. The Cloud Data Center may double encapsulate packets with two specified headers, a cloudIP and locIP header, when sending a packet to a destination in the logical network.

The invention discloses an application information push method, a system and a network element. The method comprises the steps of an information push network element receiving application information sent from an application server and having user application identifier which is used for marking application corresponding user on a mobile terminal; the information push network element determing the user network identifier of the mobile terminal corresponding to the application information according to the mapping relation between the user application identifier and the user network identifier of the mobile terminal; and the information push network element sending the application information to the mobile terminal according to the user network identifier. The invention realizes application information push in a wireless network without providing user network identifier of a mobile terminal to a service provider, thereby ensuring network safety.

The invention discloses a method and test circuit for preventing data encryption algorithm (DES) attack based on power analysis. Before a first subkey K1 carries out operation on data, an algorithm process is kept the same with an original DES process, after xor is conducted on a plaintext through the subkey K1 in a first round, a mask off code X is led in, operation of encryption processes from a following second round to a fifteenth round is similar, only numerical values of random numbers of the xor are different, and correctness of processing procedures in the arithmetic is ensured. At last, the mask off code X on the xor is output in a sixteenth round, real ciphertext information is restored through inverse permutation between initial permutation (IP) and final permutation (FP) and a mask off code X4. According to the DES, due to the fact that values and positions of mask off codes added in the first round and the last round are different from those of other rounds, namely encryption by non symmetrical mask off codes, so that effects of the mask off codes cannot be eliminated by adoption of a hamming distance model, and therefore power attack on the DES can be prevented, and the purpose of ensuring safety of a DES secret key is achieved.

A washing machine and a washing control method of the same that squeeze detergent water from the laundry, heat the squeezed detergent water, and resupply the heated detergent water, thereby performing heated washing using a minimized amount of water. The washing machine includes a water tub, a rotary drum mounted in the water tub to receive laundry, and a circulation unit to supply water from the water tub into the rotary drum. The washing control method includes detecting an amount of a load according to a weight of the laundry, supplying an amount of water set according to the detected amount of load, supplying the water in the water tub into the rotary drum through the circulation unit to wet the laundry, separating the water from the laundry by rotating the rotary drum, and heating the separated water and resupplying the heated water into the rotary drum through the circulation unit.

The invention relates to the technical field of maritime searches and rescue and surveys, in particular to an automatic collision preventing control method of a USV, and aims at providing the automatic collision preventing control method of the USV. By means of mutual cooperation among all subsystems of a whole collision preventing system, the unmanned surface vehicle (USV) can automatically search for obstacles and implement collision preventing strategies according to distribution of the obstacles when the USV executes tasks such as rescue and surveys. The method comprises the following steps that 1, environmental image information is collected; 2, the distance between the obstacles and the USV is measured; 3, a GPS measures relative position information of the USV with other USVs, and a tachometer measures the movement velocity of the USV and other USVs; 4, an obstacle judgment system processes received information; 5, the sea clutter situation is transmitted to a genetic algorithm controller; 6, the genetic algorithm controller generates the collision preventing strategies. The automatic collision preventing control method of the USV is suitable for the technical field of the maritime searches and rescue and surveys.

The present disclosure discloses a method, apparatus, node, system for blockchain-based identity authentication. The method includes: receiving an authentication request sent by an authenticated party node, in the case that it is determined that the identity information of the authenticated party node and identity proof publishing node, and a digital signature of the identity proof publishing node on the identity information of the authenticated party node have been written into a blockchain, verifying the digital signature according to a public key of the identity proof publishing node; after the digital signature passes the verification, determining whether the authenticated party node has mastered a private key corresponding to the public key of the authenticated party node; and in the case that it is determined that the authenticated party node has mastered the private key, it is determined that the authenticated party node passes the identity authentication.