48results about How to "Guaranteed security" patented technology

The invention relates to the communication field and discloses an authentication method, a network and a system of mobile ad hoc network, which ensures the realization of layer distribution type authentication scheme of cluster mobile ad hoc network; and the requirement on computer processed resources is rational, which can be realized in practical application environment. The invention adopts a group network structure of cluster mobile ad hoc network and advocates layer distribution identity authentication scheme; and the inter-cluster communication used an improved new threshold group signature protocol which improves the original threshold group signature method based on GQ and decreases power index calculation times, improves calculation parallelism and reduces the requirement on processed resources; at the time of initialization, a certificate and a sub key are issued by the system uniformly; cluster heads which have enough numbers of sub keys can jointly recover system keys, thereby carrying out the group signature to issue certificates to new added nodes and using multi-leap serial communication for realizing united group signature.

A method, system, and terminal for hierarchical management of group keys of a broadband cluster system. The method comprises: a system side generates a group root key for a group and issues the group root key to terminals in the group; when establishing a group call, the system side generates a group call security parameter, generates a non-access stratum key and an access stratum key on the basis of the group root key and of the group call security parameter, and issues the group call security parameter to a listening user terminal in the group; and, the system side protects a group call shared channel of the group call on the basis of the non-access stratum key and of the access stratum key.

The invention relates to a block chain security system and a method for takeaway service in residential quarters, including an access control point, a block chain access control operating system, resident terminals, deliveryman terminals, a residential quarter access control management system, and a takeaway service platform. The takeaway booking and delivery information is integrated into the system through the takeaway service platform for efficient delivery of takeaways. The invention makes it possible for the takeaway deliverymen enter and leave residential quarters more efficiently and quickly. The method provided by the invention can help manage the outbound deliverymen in and out residential quarters more effectively and improve their work efficiency while ensuring the security of residential quarters.

The invention relates to a community express service blockchain security and protection system and method. The system comprises a logistics platform, a community access control management system, a courier terminal, a community access control operating system and a community access controller; a logistics station server communicates with the community access control management system of a community corresponding to a consignee address of an express logistics number, and sends the consignee address and addressee information to an access control management communication module of the community access control management system; a logistics station assigns a courier to deliver the express and generates a group of keys; and when the courier arrives at the doorway of the corresponding community,the courier enters the keys, the key information is matched, and entry is permitted when the matching is successful. By adoption of the community express service blockchain security and protection system and method provided by the invention, the problem that the courier enters and leaves the community quickly and efficiently is solved. By adoption of the method provided by the invention, the quick and efficient entry and exit of the courier in the community can be managed, thereby improving the efficiency while ensuring the security of the community.

The invention discloses an on-site measurement device and a measurement method for surface charges of a high-voltage direct-current bushing. The on-site measurement device comprises: a lifting platform and a stepping unit, wherein the lifting platform and the stepping unit are used for carrying out radial and axial two-dimensional stepping scanning on the high-voltage direct-current bushing; an epoxy frame which is installed on the lifting platform and the stepping unit and moves along with the lifting platform and the stepping unit, wherein the high-voltage direct-current sleeve penetrates through the center of the epoxy frame; and a plurality of induction electrodes and a signal acquisition module in the electrostatic probe scanning unit which are mounted in holes reserved in the epoxy frame. Radial and axial two-dimensional stepping scanning is carried out on the high-voltage direct-current bushing through the lifting platform and the stepping unit, the sensing electrode generates sine-rule displacement relative to the surface of the high-voltage direct-current bushing, the signal acquisition device is used for sensing sine-rule changing current, signal conversion is carried out on the current, then processing is carried out, and the surface charge density distribution of the high-voltage direct-current bushing is calculated. The device is suitable for field test, and can rapidly, safely and accurately measure the surface charge distribution condition of the high-voltage direct-current bushing.

The invention provides a keyword ciphertext generation method and device for cloud storage data, a cloud storage anti-quantum computing public key searchable encryption method, a cloud storage system, a storage medium and electronic equipment. The cloud storage data keyword ciphertext generation method comprises the steps of acquiring keyword information from data uploaded by a data owner; determining a random bit string; performing bit string encryption on the keyword information to determine a first component; performing bit string encryption on the random bit string to determine a second component; determining a third component according to the first component and an agent authorization public key and an agent authorization key between the agent and the data owner; and determining the keyword ciphertext based on the first component, the second component and the third component of the keyword ciphertext. By adopting the bit string encryption mode, the binary bit string encryption of the keyword information can be realized, the data security is improved, and the bit string encryption also has stronger practical application advantages and stronger practicability.

The invention discloses a preparation method of a graphene low-temperature battery. The preparation method is applied to batteries of lithium titanate negative pole systems. An existing rechargeable battery only can be charged to 50-70% the total battery capacity in a low-temperature environment. The preparation method includes the steps that slurry needed for coating a battery positive pole plate is prepared from a lithium manganate positive electrode, a binding agent and a conductive agent; homogenate of slurry needed for coating a battery negative pole plate is prepared from a conductive agent containing conductive graphene slurry; coating of the battery positive pole and the battery negative pole is carried out, and blank foil is reserved on the upper and lower sides of the positive pole and the negative pole; rolling and cutting of the battery positive pole plate and the battery negative pole plate are carried out; battery assembling is carried out; battery formation and aftertreatment are carried out. The preparation method has the advantages that the battery can be charged to 90% the total battery capacity within 6 min in an environment where the temperature is -40 DEG C, and meanwhile the battery has super-high cycle performance and low internal resistance.

The embodiment of the invention provides a logistics public security prevention and control system and method. The system comprises a logistics enterprise monitoring subsystem, an article security check subsystem, a logistics vehicle supervision subsystem, a logistics personnel training examination subsystem, a security early warning subsystem and a case criminal investigation auxiliary subsystem,and the logistics enterprise monitoring subsystem, the article security check subsystem, the logistics vehicle supervision subsystem and the logistics personnel training examination subsystem are separately connected with the security early warning subsystem. The embodiment of the invention also provides a logistics public security prevention and control method. According to the system and the method, various links of logistics are prevented so that the security of express and logistics is improved, and the security guarantee of the express and logistics is improved.

The present invention discloses an audio frequency induction vacuum cleaner controller. The audio frequency induction vacuum cleaner controller comprises a controller main body; and the controller main body comprises a power conversion circuit for converting an AC signal to a DC signal, a motor control circuit for controlling normal operation of a motor, a microcontroller serving as a control center, a display and button module providing interface operation, a power sampling module capable of acquiring electrical parameters, and a microphone circuit for acquiring audio frequency information. According to the audio frequency induction vacuum cleaner controller, the microphone circuit acquires the audio frequency information between a motor suction opening and a dust bag, and whether the vacuum cleaner is stalled and the dust bag is full or not can be determined through software analysis of the microcontroller; persons are reminded to process timely through display of the display and button module; and the effect of power self-learning is achieved through cooperation of the power sampling module and the microcontroller, so that the technical problem of compatibility of different access power sources is solved, and the vacuum cleaner controller can be used more safely, conveniently and intelligently.

The invention relates to an edge computing node access method and device, computer equipment and a storage medium. The edge computing node access method comprises the steps of obtaining an equipment type data table; wherein the equipment type data table is used for recording a mapping relationship between node equipment types and virtual equipment types of the edge computing nodes; obtaining a target node equipment type of an edge computing node to be accessed; determining a target virtual device type corresponding to the edge computing node to be accessed according to the target node device type and the device type data table; and controlling the to-be-accessed edge computing node to access an edge computing system according to the target virtual device type. According to the embodiment of the invention, adaptive matching can be carried out on different types of entity equipment according to the equipment type data table, and the successfully matched edge computing node to be accessedis accessed to the edge computing system, so that the security of the edge computing system can be ensured.

The invention belongs to the technical field of decorative materials, and particularly relates to a cloisonne parquet manufacturing method. The method comprises the steps that pattern content is selected, a design drawing is made according to the pattern content, and a proper wood board material is selected; a cloisonne insert and a parquet are manufactured according to the design drawing paper, agroove is formed in the surface of the parquet, and the depth of the groove is 0.5-1.5 mm larger than the thickness of the cloisonne insert; plate surface coloring is conducted, and the surface coloreffect is adjusted to be uniform; an adhesive is injected into the groove, and a plurality of foot pads are placed into the groove along the edge of the groove; then the cloisonne parquet is manufactured by embedding cloisonne inserts, pressing the cloisonne inserts on the foot pads and bonding the cloisonne inserts with an adhesive, and supplementing putty to gaps between the cloisonne inserts and the parquet. When the groove is formed, the depth of the groove is slightly larger than the thickness of the cloisonne insert, in this way, after the cloisonne insert is bonded and embedded by injecting the adhesive, the upper surface of the cloisonne insert can be approximately flush with a parquet board, and flatness is well guaranteed.

A processing method for an implant material having excellent biocompatibility, in particular, a processing method and processing device for a dental implant material. A processing method and processing device for implant material having excellent biocompatibility, characterized in that an implant material composed of titanium or titanium alloy and having a roughened surface is immersed in electrolytic ozone water, the electrolytic ozone water is held at normal temperature, whereby pollution caused by adsorption of carbides onto the surface of the implant material is prevented, and hydrophilicity is imparted.

The invention relates to a method and a system for managing block chain safety of a cleaning worker in a residential area. The identification information, the working content information, the workingcycle information, the working time period information and the responsible area information of the cleaning worker in the residential area are input. Generating list of cleaning personnel working in the current day; according to work content information, work period information, responsible for the area information to the day work cleaning personnel to arrange the day work scope and authority; generating several groups of keys randomly and sending the keys to the cleaning personnel terminal working on the same day; the cleaning personnel working on the same day combine the key with the serialnumber through the cleaning staff, enter and leave the residential area, use the elevator, and carry out cleaning work; the invention solves the problem that the cleaning staff of the district enter and leave the district effectively and quickly, and the method provided by the invention can precisely safeguard the cleaning staff of the district, on the premise of guaranteeing the safety of the district, the efficiency is improved at the same time.

The invention discloses a tooling fixture equipment for processing spare parts on an aircraft production line, including the base, The upper end of the base is provided with a fixed foot seat, the upper end surface of the fixed foot seat is fixedly connected with a profile plate, the left side surface of the profile plate is fixedly installed with a transition block, the upper end surface of the transition block is provided with a positioning block and a support block, and the support block is positioned on the right side of the positioning block, and the upper end surface of the support blockis movably connected with an adjustment pad. The invention relates to a tooling fixture equipment for processing spare parts on an aircraft production line, with handle, splint block, Simple structure, The utility model can conveniently switch different fixtures without replacing all other parts, and the handle saves time and labor for the constructor, not only ensures the working efficiency butalso improves the precision, ensures the safety degree in the construction process, and facilitates the installation and fixation between the handle and the pressing arm of the splint, so as to ensurethe normal work of the fixture and bring a better use prospect.

The invention provides a magnetic lockset. The magnetic lockset comprises an outer magnetic ring, magnetic columns, a lock cylinder, a transmission shaft and a key. The outer magnetic ring externally sleeves the lock cylinder which is an annular column externally sleeving the transmission shaft, the lock cylinder in the shape of the annular column is axially divided into N flat annular columns, each flat annular column is internally radially provided with a slide way, and directions of the slide ways in the flat annular columns are not completely uniform; the magnetic columns capable of sliding along the slide ways are arranged in the slide ways respectively; the magnetic columns and the outer magnetic ring follow the law that like poles repel; the key is matched with the inner surface of the transmission shaft and longitudinally partitioned into multiple sections, and section magnets are identical to the magnetic columns in magnetism. The magnetic lockset has the advantages that composition modes of the slide ways in the magnetic lockset is complex, features of the magnetic lockset cannot be seen from the outside, and accordingly the magnetic lockset is less prone to breaking, and abrasion degree and fracture probability of the key can be effectively lowered.

The embodiment of the invention provides a management and control device, method and equipment for a mobile terminal and a computer readable storage medium. The device, method and equipment are used for managing and controlling the mobile terminal used in a military camp. The management and control device comprises a password management module, a peripheral management module and a network management module, wherein the password management module is used for monitoring the mobile terminal to set password information meeting a preset standard and the validity period of a password, and sending apassword replacement prompt to the mobile terminal according to the validity period of the password; the peripheral management module is used for monitoring and managing utilization of peripheral application programs on the mobile terminal; the network management module is used for acquiring network connection information of the mobile terminal, and monitoring and managing the network running state of the mobile terminal according to the network connection information. By means of the management and control device, method and equipment for the mobile terminal and the computer readable storagemedium, the application safety of the mobile terminal is effectively guaranteed, the safety and reliability of the information on the mobile terminal are further improved, and the management and control effect of the management control device are effectively ensured.

The invention relates to a roadside parking space management method, a roadside parking space management system and a roadside parking space management pile. The roadside parking space management method comprises the steps of: judging whether external vehicle driving-in parking space information is acquired or not; if so, acquiring the illumination intensity of the environment where the current parking space is located; if the current illumination intensity is higher than the preset illumination intensity, acquiring first license plate information; if the current illumination intensity is lower than the preset illumination intensity, outputting an illumination signal and acquiring first license plate information; judging whether the information that the vehicle drives away from the parkingspace is obtained or not; if so, acquiring the illumination intensity of the environment where the current parking space is located; if the current illumination intensity is higher than the preset illumination intensity, acquiring second license plate information; if the current illumination intensity is lower than the preset illumination intensity, outputting an illumination signal and acquiringsecond license plate information; determining vehicle staying time according to the license plate information acquired before and after; and determining parking payment information according to the vehicle parking time and pushing the parking payment information to the driver. The method has the effect of facilitating parking management.

The invention discloses an authentication method and device. The method comprises the steps that the authentication request sent by a user can be received by a user, wherein the authentication requestcarries along a tenant identification Project_ID and an authentication identification Endpoint_ID; whether the Project_ID is related to the Endpoint_ID or not can be determined; when the Project_ID is related to the Endpoint_ID, the authentication strategy corresponding to the Project_ID can be searched; when the authentication strategy corresponding to the Project_ID is found, the authenticationrequest undergoes authentication based on the authentication strategy corresponding to the Project_ID.