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386results about How to "Achieve resilience" patented technology

Resource allocation method in distributed heterogeneous environment in mobile edge computing

The invention belongs to the technical field of wireless communication, and relates to a resource allocation method in a distributed heterogeneous environment in mobile edge computing. The method comprises the steps of establishing diversified task unloading models according to unloading delays corresponding to different service types in an MEC environment; establishing a buying and selling game model between the user and the MEC server; respectively establishing maximized income models of the user and the MEC server; adopting a Lyapunov optimization algorithm to improve the user model, and solving an optimal purchase strategy of the user through a Lagrange multiplier method and KKT conditions; solving an optimal quotation strategy of the MEC server based on the strategy; and if the optimal purchase strategy and the optimal quotation strategy satisfy a Stackleberg equilibrium solution, allocating computing resources of different users as required according to the optimal strategy by the MEC server. By means of the method, compromise of user unloading income and time delay can be achieved, and elastic control and on-demand distribution of task unloading and computing resource distribution can be achieved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Internet of Things cloud access method and system based on Web Service

ActiveCN103179210AUnified certificationUnified authorizationError prevention/detection by using return channelAccess methodWeb service
The invention relates to an Internet of Things cloud access method and system based on Web Service. The method comprises the following steps of: 1, sending registration request information to a cloud receiving end through an Internet of Things emitting client; 2, feeding digital certificate information back to the Internet of Things emitting client by the cloud receiving end after receiving the registration request information; 3, acquiring a service resource identifier of the cloud receiving end through the Internet of Things emitting client; and 4, bidirectionally sending data information to the cloud receiving end at fixed period by the Internet of Things emitting client according to the service resource identifier and the digital certificate information. According to the Internet of Things cloud access method and system based on the Web Service, both the generality and the flexibility are combined, thus the problem of the conventional cloud access system can be solved well, the access equipment of various types can be compatible, and the data can be safely and reliably transmitted to a cloud center through the Internet of Things emitting client; an HTTP/HTTPS (Hyper Text Transport Protocol/Hypertext Transfer Protocol Secure) protocol is adopted, therefore, the possibility of error interception is avoided; and with the adoption of a self-defined JSON (JavaScript Object Notation) message format providing envelope mechanism, the industrial data models of various types are supported.
Owner:太原罗克佳华工业有限公司

On-demand service method for software license in cloud computing platform

The invention relates to an on-demand service method for a software license in a cloud computing platform. The method is characterized by comprising the steps of generating the software license for the cloud computing platform and using the cloud computing platform by users. As the number of software modules and licenses is not limited, as long as hardware resources are enough, application software and the license resources thereof can timely meet the requirements regardless of the number of the users simultaneously using the software modules and the licenses. According to the method, at the peak usage time of a large number of users, the requirements of the users can be met timely, the user service quality is effectively improved, the response time for application is shortened, and the capacity of the users is increased; and when the users do not use the application software, software usage records and software expense can be avoided, so that user expense waste can be avoided at the trough usage time of the users. The on-demand service method for the software license in the cloud computing platform more reasonably makes use of the application software and the license thereof, and fulfills the aims of fully sharing the application software in the cloud computing platform and improving the software value.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Electric welding machine connecting device

The invention discloses an electric welding machine connecting device which comprises a wall body and a frame base arranged in the wall body. A cavity is arranged at the bottom in the frame base, a slippage part is arranged in the cavity, a control zone is arranged in the outer wall of the left side of the slippage part, a placement groove is formed in the slippage part on the right side of the control zone, a first hollow cavity is formed in the slippage part on the right side of the placement groove, a first baffle is arranged between the first hollow cavity and the placement groove, a second hollow cavity is formed in the slippage part above the first hollow cavity, a first baffle is arranged in the second hollow cavity, a boss is arranged in the second hollow cavity above the first baffle, protruding blocks are arranged at the tops of two sides of the boss, magnets are arranged in the bottoms of the protruding blocks, magnets are arranged in the bottoms of the protruding blocks, electromagnetic coil devices are arranged at the top of the first baffle corresponding to the magnets, first compression springs are arranged between the electromagnetic coil devices and the magnets, and the bottom of the boss penetrates through the first baffle. The electric welding machine connecting device is simple in structure, convenient to operate, small in occupied area and capable of meeting wiring demands of different distances and achieving wire take-up work, and the working efficiency is improved.
Owner:江苏南洋电子有限公司

Service recommendation method and system

The invention discloses a service recommendation method and system. The method comprises the steps of obtaining essential information of users, raw information of using the internet by the users and position scene information of using mobile service by the users; setting a user interest model according to the obtained raw information of using the internet by the users; setting a user scene model according to the obtained position scene information of using the mobile service by the users; and setting an association relationship model among the user interest model, the user scene model and service information, calculating the recommendation levels of various kinds of service recommended to the users according to the association relationship model, and recommending the service with the high recommendation level to the users. According to the technical scheme, the position scene of the users is introduced into the individual service recommendation method, so that the recommendation accuracy of individual service and the user experience are improved, and the method is based on a system framework of a cloud computing resource pool, so that the flexibility and the dynamic propagation of resources are achieved, the system response time is shortened and the user experience is improved.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Method for formulating water-air alternate time-controlled quenching process

The invention provides a method for formulating a water-air alternate time-controlled quenching process. The method comprises the following steps of: step 1, predicating a structure composition of a part with required performance according to the performance detection part of an alloy steel piece and specific performance requirements; step 2, according to the super-cooled austenite isothermal cooling transformation curve or the super-cooled austenite continuous cooling transformation curve of a material, acquiring the longest cooling time or the minimum cooling speed which the structure needs to reach a certain temperature; step 3, dividing an alloy steel piece into a cooling speed control area and a slow cooling area along a section from the surface to the centre; step 4, determining the water-air alternation times of the cooling speed control area, and a water-cooling time and an air-cooling time each time; and step 5, determining the water-air alternation times of the slow cooling area, and a water-cooling time and an air-cooling time each time. With the adoption of the method provided by the invention, the alloy steel piece can obtain required performance or structure on the premise of avoiding cracking; and the method is suitable for a quenching treatment for the alloy steel pieces with various ingredients.
Owner:SHANGHAI JIAO TONG UNIV

Composite brazing material for connecting Si3N4 ceramic and 42CrMo steel and brazing method by using same

The invention relates to a brazing material for connecting ceramic and steel and a brazing method, particularly a composite brazing material for connecting Si3N4 ceramic and 42CrMo steel and a brazing method by using the same... The invention aims to solve the problems of high residual stress and low strength of the brazing joint formed by connecting the Si3N4 ceramic and 42CrMo steel by the existing brazing material. The brazing material is prepared from Ag powder, Cu powder, Ti powder and a reinforcing phase. The method comprises the following steps: mixing Ag powder, Cu powder, Ti powder and an reinforcing phase, carrying out ball milling, mixing with hydroxyethyl cellulose, and drying to obtain a composite brazing material sheet; putting the composite brazing material sheet between the to-be-brazed surface of the Si3N4 ceramic and the to-be-brazed surface of the 42CrMo steel to obtain a to-be-brazed piece; and putting the to-be-brazed piece in a vacuum brazing furnace to carry out vacuum brazing, thereby completing the brazing of the composite brazing material for connecting the Si3N4 ceramic and the 42CrMo steel. The invention has the advantages of low residual stress and high strength of the brazing joint, and is applicable to brazing connection of ceramic and steel.
Owner:HARBIN INST OF TECH

High wear resistance surfacing alloy material containing multiphase metal ceramics

The invention relates to a high wear resistance surfacing alloy material containing multiphase metal ceramics and belongs to the technical field of the material. The high wear resistance surfacing alloy material comprises the following ingredients in percentage by weight: 25 to 50 percent of ferrochrome, 1 to 10 percent of ferrotitanium, 1 to 10 percent of ferrovanadium, 0.1 to 5 percent of rare earth material, 1 to 7 percent of ferroboron, 0.4 to 8 percent of ferromolybdenum, 0.5 to 5 percent of aluminium powder, 0.4 to 7 percent of ferronickel, 0.1 to 10 percent of powder material, 8 to 15 percent of sodium potassium silicate, 0.1 to 5 percent of carbon black and the balance of ferrum, wherein the granularity is between 70 and 140 meshes. When the high wear resistance surfacing alloy material containing the multiphase metal ceramics of the invention is adopted to carry out carbon arc surfacing or plasma surfacing, the operation method is simple and the cost is low. Compared with a manual wear-resistance surfacing electrode, the high wear resistance surfacing alloy material is easy to obtain a surfacing layer with high carbon content, high hardness and high wear resistance and has the advantages of firm combination of hard phases and a matrix, high performance of resisting abrasive wear and wide application range.
Owner:LIAONING TECHNICAL UNIVERSITY +1

High-temperature-resistant flexible adhesive cured at normal temperature and preparation method thereof

The invention discloses a high-temperature-resistant flexible adhesive cured at normal temperature and a preparation method thereof. The high-temperature-resistant flexible adhesive is prepared by adopting bisphenol-A epoxy resin, high-polymerization-degree epoxy resin, polysulfide rubber and organic silicon resin as bonding components, adopting polyamide as a main curing component, and adding inorganic auxiliary materials with different proportions. The high-temperature-resistant flexible adhesive disclosed by the invention has the advantages that a Si-O chain section in organic silicon and a flexible chained structure in the polysulfide rubber are formed by changing grafting positions of the organic silicon and the epoxy resin, so that not only are the high-temperature resistance and the toughness of a cured product improved, but also the consumption of epoxy groups in a process of modification is reduced. The epoxy resin adhesive prepared by the method solves the problems that the cost is high, the purchasing of raw materials is difficult and the modification of the bonding components consumes a great quantity of epoxy groups to cause insufficient curing reaction and further cause reduction of the strength of the adhesive in the epoxy resin adhesive in the prior art. The high-temperature-resistant flexible adhesive has the characteristics that the operation can be carried out under the room-temperature condition, and simultaneously the high temperature can be resisted.
Owner:ZHENGZHOU UNIV

Multi-live load balancing method and system applied to openstack cloud platform

The invention discloses a multi-live load balancing method and system applied to an openstack cloud platform, and belongs to the field of cloud computing pass. The technical problem to be solved by the invention is how to meet the requirements of four-layer and seven-layer flow load balancing, avoide a single-point fault of the load balancing node, achieve the maximum utilization rate of the loadbalancing node performance, and improve the resource utilization rate of the physical server on the cloud platform; the adopted technical scheme is as follows: the method comprises the following steps: open-source LVS and NGINX are used for carrying out load balancing on four-layer flow and seven-layer flow respectively; through cooperation of an open source quagga virtual router of an ospf protocol and a physical switch supporting the ospf protocol, multi-path selection is carried out; a multi-active mode is realized, and communication with a virtual machine in a tenant vpc is performed through an external network shared by tenants on an openstack platform, so that cross-vpc load balancing is realized. The system adopts a micro-service software architecture and comprises a UI layer, a back-end micro-service layer, an atomic micro-service layer and a far-end SLB-AGENT layer.
Owner:山东汇贸电子口岸有限公司

Intelligent supermarket shopping trolley lock and control system thereof

The invention belongs to the technical field of shopping trolley lock equipment, and particularly provides an intelligent supermarket shopping trolley lock and a control system thereof. The lock mainly comprises an electronic lock shell, a shopping trolley lock two-dimensional code, a display screen, a chain lock insertion hole, a control chip, an insertion head, a chain, a mobile phone supermarket shopping APP and the like; information transmission between the mobile phone supermarket shopping APP and the control chip are achieved through wireless connection, so that the opening and closing of the shopping trolley lock can be controlled; and the intelligent supermarket shopping trolley lock controlled by using the mobile phone supermarket shopping APP comprises a code scanning verification module, a verification success unlocking shopping trolley module, a shopping completed locking shopping trolley module and a supermarket shopping credit record and a value-added service module. Theintelligent supermarket shopping trolley lock and the control system thereof have the advantages that the lock body is reasonable in structure, the principle is reliable, it is convenient and fast that the shopping trolley can be unlocked through the mobile phone APP, and the mobile phone supermarket shopping APP is provided with the functions of providing a series of services such as a supermarket map, goods positions, supermarket discounted goods, supermarket free shuttle bus situations and the like, thereby greatly satisfying the shopping needs of customers.
Owner:QINGDAO UNIV

Charging pile of electric automobile

The invention discloses a charging pile of an electric automobile. The charging pile of the electric automobile comprises a wall top wall and a fixed seat inlaid in the wall top wall, a containing cavity is formed in the bottom of the interior of the fixed seat, a movable telescopic piece is arranged in the containing cavity, and an operating zone is arranged in the outer wall of the left side of the movable telescopic piece; a joint trough is formed in the position, on the right side of the operation zone, of the movable telescopic piece, a first cavity is formed in the position, on the right side of the joint trough, of the movable telescopic piece, a first separation plate is arranged between the first cavity and the joint trough, a second cavity is formed in the position, above the first cavity, of the movable telescopic piece, a first separation plate is arranged in the second cavity, and a movable protruding block is arranged in the position above the first separation plate, of the second cavity; and protruding blocks are arranged at the tops of the two sides of the movable protruding block, magnet bodies are arranged in the bottoms of the protruding blocks, electromagnetic coil devices are arranged at the positions, corresponding to the magnet bodies, of the top of the first separation plate, first springs are arranged between the electromagnetic coil devices and the magnet bodies, and the bottom of the movable protruding block penetrates through the first separation plate. The charging pile of the electric automobile is simple in structure, small in occupied area, and can prevent a charging gun head from being exposed externally to result in potential safety hazards.
Owner:广州市双岛科技有限公司

Intelligent robot gripper clamp

InactiveCN108297120AEasy to grabEmbodies automated intelligent technologyProgramme-controlled manipulatorGripping headsControl systemEngineering
The invention relates to the technical field of robots, and discloses an intelligent robot gripper clamp comprising a main frame. A fixing seat is fixedly mounted at the top end of the main frame, a buckle ring is fixedly mounted at the top end of the fixing seat, two buckle plates are fixedly mounted on the left side and the right side of the buckle ring correspondingly, an image control system is fixedly mounted between the left side and the right side of the inner wall of the main frame, guiding rails are fixedly mounted on the left side and the right side of the main frame correspondingly,and the ends, away from the main frame, of the guiding rails are movably connected with sliding blocks correspondingly. According to the intelligent robot gripper clamp, the image control system is adopted to detect the lengths and sizes of workpieces, then the positions of the sliding blocks on the guiding rails are controlled according to the heights of the workpieces, the distance between twosupporting arms is adjusted through devices such as a hydraulic rod and a connecting rod according to the sizes of the workpieces, and thus the workpieces can be clamped more conveniently; and according to the intelligent robot gripper clamp, automatic and intelligent science and technology are embodied, and meanwhile, the workpieces with different specifications can also be clamped.
Owner:苏州功业肆点零智能科技有限公司
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