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161results about How to "Effectively hide" patented technology

Online and intelligent optical cable monitoring and fault positioning system based on GIS platform

The invention provides an online and intelligent optical cable monitoring and fault positioning system based on a GIS platform. The online and intelligent optical cable monitoring and fault positioning system comprises a monitoring unit and a positioning unit, wherein the monitoring unit comprises an intelligent diagnosis mainframe, a diagnosis unit and a PC terminal display unit, the intelligent diagnosis mainframe comprises a central processing unit and an optical time domain reflectometer module, an optical path switching module and an optical power monitoring module connected with the central processing unit, the diagnosis unit comprises a power module and a light source device, an optical coupling module and an optical protection module connected with the power module, and the positioning unit comprises a fault locator arranged in an optical cable. Information is processed by calling optical cable information in time, and meanwhile the system can flexibly utilize a geographic information system (GIS) technology, adopts rack-type integration, and is high in integration level, good in stability and high in expandability. When breakdown occurs, the system can clearly display fault GPS points and fault types, maintainers can perform accurate positioning through a GIS map, and accordingly the maintenance efficiency is improved.
Owner:山西恒海创盈科技有限公司

Content distribution network based DDoS (distributed denial of service) attack protecting method and content distribution network based DDoS attack protecting system for cloud distribution platform

The invention discloses a content distribution network based DDoS (distributed denial of service) attack protecting method and a content distribution network based DDoS attack protecting system for a cloud distribution platform. The method and the system can effectively protect the cloud distribution platform from large-scale DDoS attacks. The technical scheme includes that the system comprises a plurality of content distribution network security nodes, an alarm component, a decision making component and a DNS (domain name server) component, wherein the content distribution network security nodes are used for detecting the DDoS attacks and executing protection strategies; the alarm component is connected with the content distribution network security nodes and is used for collecting and analyzing flow of the content distribution network security nodes and attack behavior characteristic matching and sending DDoS attack alarm information; the decision making component is connected with the alarm component and is used for analyzing the alarm information, generating the protection strategies aiming at the DDoS attacks, sending the protection strategies to the content distribution network security nodes and sending a switching instruction to the DNS component if the protection strategies include service switching nodes; and the DNS component is connected with the decision making component and is used for switching service nodes of a website according to the switching instruction.
Owner:CHINANETCENT TECH

Network video monitoring system based on FPGA chaotic encryption

The invention relates to a network video monitoring system based on FPGA chaotic encryption, comprising a server terminal, a client terminal and a system configuration terminal. The server terminal comprises a plurality of cameras, a video server, an encryption module and a signal sending module; the client terminal comprises a signal receiving module, a decryption module and a client terminal player; video frequency collected by the plurality of cameras is coded by the server, then input into the encryption module via the Ethernet and sent to the client terminal via the signal sending module after encrypted; the signal receiving module of the client terminal receives the encrypted video data and then sends the data to the decryption module for processing and finally the client terminal player plays the video data; the encryption module and the decryption module are respectively an FPGA encryption board and a decryption board; the encryption process and the decryption process of the encryption module to video flow are as follows: the encryption module adopts a CPRS array which is cut and operates with a plain text data module 2, and then sent; and the receiving terminal of the decryption module obtains the same CPRS array, and then operates with a cryptograph module to realize decryption.
Owner:NANJING UNIV

Liquid crystal display device

The invention discloses a liquid crystal display device which is provided with a back plate, a light guide plate arranged on the back plate, an optical diaphragm arranged on the light guide plate, a rubber frame, a liquid crystal display panel, a driving chip and a flexible circuit board. The rubber frame is fixedly connected with the back plate so as to enable the optical diaphragm and the light guide plate to be fixed, the liquid crystal display panel is fixedly arranged on the rubber frame and comprises an upper glass substrate and a lower glass substrate, wherein the upper glass substrate and the lower glass substrate are arranged oppositely and comprise bottom surfaces, top surfaces and side surfaces for connecting the bottom surfaces and the top surfaces, and the flexible circuit board comprises metal leads and is connected to the liquid crystal display panel. The driving chip is connected with the flexible circuit board and connected to the liquid crystal display panel through the metal leads of the flexible circuit board in a coupling mode, a first wiring notch is arranged at the connecting position of the bottom surface and the side surface of the upper glass substrate, and the flexible circuit board connected to the liquid crystal display panel is wired through the first wiring notch. The liquid crystal display device enables chip on film (COF) to be hidden in the liquid crystal display device effectively and facilitates design of liquid crystal display panels without frames greatly.
Owner:CHANGSHA HKC OPTOELECTRONICS CO LTD

A block chain privacy protection scheme and system based on SM9 algorithm

InactiveCN109409884ASolve problems that are difficult to apply to real-world scenariosSolve application problemsDigital data protectionProtocol authorisationChain structurePrivacy protection
The invention discloses a block chain privacy protection scheme and a block chain privacy protection system based on an SM9 commercial cryptographic algorithm in China, belonging to the field of blockchain security and privacy protection. This invention provides an inter-node transaction platform based on federation chain, defines the permissions and functions of various nodes in the platform, and supports node transaction, information verification, parameter maintenance, block generation and other functions. This invention describes an improved SM9 multi-KGC (Key Generation Center) signaturealgorithm, which improves the working mode of single KGC in SM9 algorithm, adapts to the federation chain structure, and adopts this algorithm to determine the identity of the opposite party in the transaction between nodes. A group signature scheme based on SM9 algorithm is proposed. The identity verification of SM9 algorithm is improved to group signature verification, which effectively protects the identity privacy of the signatory. The transaction information is signed by the node through the algorithm and written into the block chain after the transaction, which can effectively hide theidentity information of both parties of the transaction, protecting the privacy of the node and ensuring the legitimacy of the transaction.
Owner:BEIJING ANRUSHAN CULTURE TECH

Identification distribution and separate-storage method, identification replacing transmission method and system

The invention discloses an identification distribution and separate-storage method, an identification replacing transmission method and system, relating to the field of network safety. The identification distribution and separate-storage method comprises the following steps of: dividing a heterogeneous wireless network by function into a user domain, an access domain, a service domain and an attribution domain, wherein the service domain comprises at least one access domain, the access domain comprises at least one user domain, and the attribution domain and the service domain are the same network when in local service; and after the successful authentication of a terminal, allocating the attribution domain, the service domain and the access domain with domain identifications domain by domain. Based on the access authentication of the heterogeneous wireless network, the invention provides a mechanism of the identification distribution, the separate storage and the replacing transmission of the identification. In the transmission process of the domain identification in the user domain, the access domain, the service domain and the attribution domain, the real identity and the location information of a terminal can be effectively concealed through the retrieval and the replacement among domains and the dynamic update at different identification mapping servers, thereby enhancing the credible access of the heterogeneous wireless network and the safety protection capacity on mobility problems.
Owner:THE PLA INFORMATION ENG UNIV

Method for realizing communication between IPv6 private network node and public network node and routing forwarding equipment

The application discloses a method for realizing communication between an IPv6 private network node and a public network node. The method comprises the following steps: receiving a message by routing forwarding equipment from the IPv6 private network node, and selecting one IPv6 address from the public IPv6 addresses configured for a corresponding interface of the routing forwarding equipment when the source IP addresses of the message are private network addresses and target IP addresses are public network addresses, wherein the prefix of the IPv6 address is used as the address prefix for the private network node to access to the public network, and the prefix of the IPv6 address is different from the address prefix used for the private network node to access to the public network last time; sending a router announcement (RA) which comprises the address prefix and the effective time to the private network node, wherein the RA is used for triggering the private network node to generate a polymerizable global unicast address with the address prefix in the RA, and the global unicast address is used for the communication between the private network node and the public network node. The application further discloses the routing forwarding equipment. Due to the adoption of the method and the routing forwarding equipment, the private network node can be effectively protected against the attack of the external network during the communication between the IPv6 private network node and the public network node.
Owner:XINHUASAN INFORMATION TECH CO LTD

Anti-counterfeiting ink with delayed fluorescence and application of ink

The invention discloses anti-counterfeiting ink with delayed fluorescence. The anti-counterfeiting ink is prepared from a delayed fluorescence material, a dispersion solvent, a water-soluble macromolecular polymer, water and the like. The delayed fluorescence material can emit visible light under ultraviolet excitation and emit delayed fluorescence after ultraviolet excitation. An information hiding and anti-counterfeiting method comprises the steps as follows: the anti-counterfeiting ink with delayed fluorescence forms a first mark containing confidential information; the first mark is coatedwith a second mark containing interference information formed by anti-counterfeiting ink with phosphorescence to form an anti-counterfeiting mark. The anti-counterfeiting mark displays the interference information under ultraviolet irradiation and after irradiation in a dry state and displays the interference information and the confidential information under ultraviolet irradiation and after irradiation in a moisture wet state. Decryption and encryption are realized by use of the principle that the delayed fluorescence material is insensitive to air and vapor and phosphorescence is quenchedunder the effects of air and vapor, operation is convenient, the cost is low, and the anti-counterfeiting performance is excellent and stable.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Vehicle-mounted head-up display system based on transparent imaging glass

The invention relates to a vehicle-mounted head-up display system based on transparent imaging glass. The system comprises a vehicle head and a front windshield. A projector and a central processing unit used for controlling the projector are arranged in the vehicle head. The protector is connected with the central processing unit through a data line. The top of the vehicle head is provided with a light-pervious hole and a mirror outside a vehicle, the light-pervious hole can project an image in the projector, the mirror can reflect the image transmitted from the light-pervious hole to the front windshield, the front windshield is formed by stacking and fusing a transparent supporting layer and a nanoparticle thin film layer, and the nanoparticle thin film layer is a transparent material layer where nanoparticles are evenly distributed with a resin material as a carrier. Product investment cost is low, the projection image of the projector is reflected on the front windshield through light and can display a 2.5D or 3D image effect, light utilization efficiency reaches 24-30%, a clearer image can be represented, visual fatigue is effectively relieved, a projection device can be effectively hidden, and an optical path is corrected to prevent the vision in a cab from being sheltered.
Owner:SHANGHAI LANMOU MEDIA TECH CO LTD

Small desk type dish-washing machine

The invention relates to a small desk type dish-washing machine. The small desk type dish-washing machine comprises a machine body bottom plate, a base assembly, a liner assembly, a PCB, a door plateassembly, and a shell composed of a first side plate, a second side plate and a top plate, wherein an upper spray arm assembly is arranged on the top of the liner assembly, and a lower spray arm assembly is arranged on the base assembly; an air blowing assembly is arranged between the first side plate and the liner assembly, an air inlet of the air blowing assembly corresponds to and communicateswith a side plate air inlet in the first side plate, and an air outlet of the air blowing assembly corresponds to and communicates with a liner air inlet in the liner assembly; an air exhaust assemblyis arranged between the second side plate and the liner assembly, and an air inlet of the air exhaust assembly corresponds to and communicates with a first liner air outlet in the liner assembly. Thesmall desk type dish-washing machine provided by the invention is small and exquisite in structure size, the restricted problems including that the space of a kitchen is small, but users are in soreneed of a dish-washing machine, are solved, certain desire and demands of the users are fully satisfied, meanwhile, a fan drying system is configured, and thus the property of the machine is sufficiently improved.
Owner:中山市吉相电器有限公司

Image encryption and decryption method based on fractional order translation chaotic system

PendingCN110572252AHigh dimensional spaceStrong initial value sensitivityDigital data protectionSecuring communication by chaotic signalsComputer hardwarePlaintext
The invention discloses an image encryption and decryption method based on a fractional order translation chaotic system, and relates to the fields of computer cryptography, image encryption processing and communication and network engineering, which can solve the problems that initial conditions of an existing chaotic system are not associated with plaintexts, plaintext attacks cannot be resisted, and the safety is poor. According to themethod, translation transformation is conducted on the fractional order chaotic system by introducing a piecewise function, parameters are set, different numbers of scroll attractors can be generated, and the fractional order translation chaotic system perfects the field of fractional order chaotic systems composed of three-dimensional one-time autonomousconstant differential. Meanwhile, the fractional order multi-scroll chaotic system has higher dimension space and higher initial value sensitivity, the image encryption and decryption algorithm basedon the system is high in randomness and multiple in secret key parameters, a multi-iteration mode is adopted in the encryption process, an encrypted ciphertext matrix becomes very uniform, and therefore the purpose of effectively hiding original image information is achieved.
Owner:CHANGCHUN UNIV OF TECH

Double U-groove and joint node structure using same

The embodiment of the present invention provides a double U-shaped groove and a joint structure using the double U-shaped groove. The double U-shaped groove includes: a first U-shaped groove and a second U-shaped groove; The first U-shaped groove includes a groove The top, the two side walls of the grooves, and the two groove edges, wherein the first ends of the side walls of each groove are respectively connected to opposite ends of the groove top, and the second ends of the side walls of each groove are located on the same side of the top of the groove and are respectively connected to each The first end of the groove edge and the second end of each groove edge extend in a direction away from the side wall of the groove, and a first flange and a second flange are provided on the opposite inner wall surfaces of the side walls of each groove; the second U-shaped The slot includes a cover plate and two support plates, wherein each support plate is located on the same side of the cover plate, and the first end of each support plate is respectively connected to the cover plate, and the second end of each support plate is respectively provided with limit hooks Correspondingly, a joint joint structure using double U-shaped grooves is provided, which has high strength and is not easily deformed, and the double-supporting and limiting technology of reverse hooks ensures the integrity and decoration of the double U-shaped grooves.
Owner:DUOWEI UNION GRP

Intelligent drum brake type anti-theft lock for electric vehicle

The invention discloses an intelligent drum brake type anti-theft lock for an electric vehicle. The intelligent drum brake type anti-theft lock for the electric vehicle comprises a remote control and a cylindrical drum body (22) installed on a motor shaft of the electric vehicle and a drum brake body (21), wherein a confined space of the drum brake body (21) is formed through a round decorative cover plate (37), an assembly lower shell (23) and an assembly upper cover (36) which are matched to form an assembly shell are installed on the brake drum main body (21), a circuit control board (24) is installed in the assembly shell and is electrically connected with a micro motor (25), a worm (251) is arranged on a shaft of the micro motor, and a locking mechanism is driven by the worm (251) through a transmission mechanism installed on the assembly lower shell (23) according to the rotating direction of the micro motor (25) to achieve unlocking and locking. According to the intelligent drum brake type anti-theft lock for the electric vehicle, electric power is supplied or cut off under the control of the remote control, the control circuit board is arranged, the electric vehicle can be locked automatically when a key is pulled out after parking, operation is convenient, and the degree of automation is high.
Owner:YUEQING LECHI HONGSHENG LOCK IND TECH CO LTD

Network video monitoring system based on FPGA chaotic encryption

The invention relates to a network video monitoring system based on FPGA chaotic encryption, comprising a server terminal, a client terminal and a system configuration terminal. The server terminal comprises a plurality of cameras, a video server, an encryption module and a signal sending module; the client terminal comprises a signal receiving module, a decryption module and a client terminal player; video frequency collected by the plurality of cameras is coded by the server, then input into the encryption module via the Ethernet and sent to the client terminal via the signal sending moduleafter encrypted; the signal receiving module of the client terminal receives the encrypted video data and then sends the data to the decryption module for processing and finally the client terminal player plays the video data; the encryption module and the decryption module are respectively an FPGA encryption board and a decryption board; the encryption process and the decryption process of the encryption module to video flow are as follows: the encryption module adopts a CPRS array which is cut and operates with a plain text data module 2, and then sent; and the receiving terminal of the decryption module obtains the same CPRS array, and then operates with a cryptograph module to realize decryption.
Owner:NANJING UNIV

Transporting vehicle convenient to dismount

The invention discloses a transporting vehicle convenient to dismount. The transporting vehicle comprises a first carrying plate, a second carrying plate, a steering frame, an unloading mechanism, a baffle frame, first rolling wheels and a second rolling wheel, wherein the first carrying plate and the second carrying plate are arranged side by side and are connected through a baffling frame; the steering frame is arranged on one side of the baffling frame and is fixedly connected with the baffling frame, the second rolling wheel is mounted at the bottom of the steering frame, and the first rolling wheels are respectively mounted at the bottoms of the first carrying plate and the second carrying plate; and the unloading mechanism is arranged on the inner side of the baffling frame and comprises a building plate, a hydraulic rod, a sliding chute plates and a pushing plate, the building plate is welded with the baffling frame, the sliding chute plate is connected to one side of the othersliding chute plate through screws, the hydraulic rod is fixedly mounted on the surface of the building plate, and a movable end of the hydraulic rod is fixedly connected with the pushing plate. Compared with an existing transporting vehicle convenient to mount and dismount, the transporting vehicle disclosed by the invention has the advantages that the constitution structure is simple, the operation is convenient, meanwhile, a mounting and dismounting mechanism can be folded, the labor can be effectively saved during the loading and unloading of the materials, the transporting vehicle is easyto popularize, and the like.
Owner:浙江杭力鼎盛机械有限公司

Counterweight arrangement structure in elevator traction system

The invention discloses a counterweight arrangement structure in an elevator traction system. The counterweight arrangement structure comprises an elevator car, a mounting platform and shaftway vertical columns which are arranged at four corners of the mounting platform, a traction machine and a traction wheel connected with the traction machine are arranged on the mounting platform, a first traction rope and a second traction rope are wound around the traction wheel, one end of the first traction rope is connected with the top of the elevator car, the other end of the first traction rope is connected with a first counterweight which is slidably arranged in the first shaftway vertical column, one end of the second traction rope is connected with the top of the elevator car, the other end of the second traction rope is connected with a second counterweight which is slidably arranged in the other shaftway vertical column, the first counterweight and the second counterweight are located on the two sides of the traction wheel correspondingly, and the four corners of the elevator car are in sliding connection with the corresponding shaftway vertical columns correspondingly. According tothe counterweight arrangement structure, multi-direction free setting of an elevator car door is facilitated, meanwhile, the overall impression of an all-transparent sightseeing elevator and a household elevator can be remarkably improved, and the safety of the elevator can be improved.
Owner:SHAANXI SIUSAI ELECTROMECHANICAL TECH CO LTD

Industrial internet terminal general security service system based on IBE

The invention discloses an IBE-based universal security service system for an industrial internet terminal. The system comprises an industrial internet terminal equipment layer, an access gateway layer and a management and control service layer; the industrial internet terminal equipment layer is used for transmitting the collected industrial data to a TCP port of the access gateway layer in an unvarnished manner; the access gateway layer is an industrial internet gateway, establishes mapping with an equipment management module according to configuration information such as a communication protocol of the terminal equipment layer, and initiates an IBE-XKMS service request to realize identity authentication access; and the management and control service layer is used for responding to a gateway equipment request through an IBE-XKMS module, completing gateway layer equipment authentication service, completing a user authority control module through key management, responding to a user data request, and completing real-time data acquisition and equipment management and control of terminal equipment accessed to the gateway through an HTTP API (Hyper Text Transport Protocol Application Program Interface). According to the invention, complex encryption and decryption operations are handed over to the gateway agent and IBE-XKMS service, so the computing pressure of the resource-limited terminal equipment is greatly reduced.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +3
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