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48results about How to "Small time" patented technology

Bidirectional grade gridding resource scheduling method based on QoS restriction

The invention relates to a bidirectional stepped grid resource scheduling method based on QoS constraints, which includes: 1. QoS service is offered to all available machines for testing according to QoS request provided by the task and the testing results are recorded in a matrix form, if the request is executable, the execution time is recorded and if the request is non-executable corresponding signs are made; 2. the matrix of the testing results is deformed according to the designated principle and the deformed matrix is accumulated according to the horizontal and vertical directions, thus calculating two vectors; 3. the tasks and the resources are grouped in a non-descending order according to the two vectors; 4. the priority scheduling is conducted according to the task grouping results, wherein, the group with small value has high priority and is firstly scheduled and the interior of the grouping is scheduled according to Min-min algorithm principle; 5. if the task has the same minimum completion time with different resources in the scheduling, the scheduling is conducted according to the resource grouping results and the group with small value has high priority and is firstly scheduled; 6. the fourth step and the fifth step are repeatedly executed until the scheduling of all tasks is completed.
Owner:WUHAN UNIV OF TECH

Permanent magnet linear voice coil motor with high thrust-weight ratio for direct drive valve

The invention relates to a permanent magnet linear voice coil motor with high thrust-weight ratio for a direct drive valve, comprising an inner stator, an outer stator, a magnetic steel component, a moving coil winding, a moving coil support and an end cover. The permanent magnet linear voice coil motor is characterized in that the magnetic steel component is two circular magnetic steel components which are bonded on the inner wall of the outer stator by a high-strength adhesive; the inner and the outer stators are both bonded on the end cover by adopting the high-strength adhesive; a spigot is processed on the end cover for realizing the mechanical positioning of the inner and the outer stators with the end cover; two annular air gaps are formed between the inner and the outer stators and the two annular magnetic steel components; the moving coil winding adopts two sets of windings, the numbers of turns of the two sets of windings are equivalent, and the winding directions are opposite, each set of winding is respectively arranged in the two annular air gaps constituted by the inner and the outer stators and the two annular magnetic steel components; the moving coil winding adopts a copper clad aluminum enameled wire, the wire winding method of the moving coil winding adopts the multi-layer flat winding; the moving coil support adopts a nylon rod with light weight, high strength and high temperature resistance; and a through hole is formed on the end cover.
Owner:BEIHANG UNIV

Electric cooker with bilayer inner pot

The invention relates to an electric cooker with a bilayer inner pot. The electric cooker comprises an inner pot and the outer pot. The outer pot comprises a pot body and a heating pipe arranged below the bottom of the pot body, the inner pot is placed in the pot body, is of a bilayer structure and comprises an inner container and an outer container, the upper edge of the inner container is connected with that of the outer container, an interlayer is arranged between the wall of the inner container and that of the outer container, and a water injection port is arranged on the inner pot and above water; multiple ventilation holes are formed in the upper portion of the wall of the inner pot and arranged above water. When the electric cooker is in use, water is added into the interlayer; after being heated, steam may be discharged from the ventilation holes to enter the inner container to steam and boil food after water in the interlayer reaches a boiling point. When the electric cooker is in use, uncooked rice can be boiled directly by the steam in the inner container of the outer pot without mixing rice with water. Compared with existing electric cookers where water and rice need to be mixed before being steamed, the electric cooker has the advantages that water needing to be added is reduced, heat and time for heating the water are both reduced, so that energy saving effect is realized.
Owner:WUHAN HYD ELECTRIC POWER EQUIP CO LTD

Dummy bar head machining system and machining method

The invention discloses a dummy bar head machining system and method, and belongs to the field of dummy bar head machining. The dummy bar head machining system comprises a pattern input module used for reading/outputting pattern information, a numerical control programming module used for carrying out machining cutter location programming on a to-be-machined curved surface structure of the dummy bar head, a virtual processing module used for simulating a numerical control program, and a detection module used for detecting whether the numerical control program is qualified or not; according tothe dummy bar head machining method, a to-be-machined dummy bar head three-dimensional model is input into the pattern input module; the numerical control programming module programs the machining cutter location; and finally, the debugged and qualified numerical control program is transmitted to execution terminal equipment to carry out entity production under the cooperation of the virtual processing module and the detection module. The system disclosed by the invention is simple to use and easy to learn, and the dummy bar head machining method disclosed by the invention adopts the system ofthe invention, so that the machining efficiency of the curved surface structure of the dummy bar head can be greatly improved, the machining quality is guaranteed, and the material cost and the laborcost are lowered.
Owner:ANHUI MAGANG HEAVY MASCH MFG CO LTD

Data transmission method, data transmission system and data transmission device based on user cooperative environment

ActiveCN106911789AGood effectSolve the problem of how the amount of data should be allocatedTransmissionComputer hardwareData information
The invention relates to a data transmission method, a data transmission system and a data transmission device for ensuring data transmission node privacy and data information quality in a data transmission process. The data transmission method, the data transmission system and the data transmission device realize total mixing in data acquisition by a cloud platform and incapability of restoring privacy information of a user by the cloud platform through the mixed data. Furthermore information which is uploaded by a data transmission node can be verified by a data aggregation node. After the data and the information which are uploaded by the aggregation node are gathered, the data and the information can be verified by the data transmission node. According to the data transmission method, the data transmission system and the data transmission device, relatively low memory space overhead and relatively low time overhead are utilized; in a date gathering process, the number of data transmissions does not exceed the number of polymerization units; the data are only transmitted by one time and no excessive bandwidth is occupied; the randomly transmitted data information is limited to some numbers, and no excessive bandwidth is occupied.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Fire retardant coating for aluminium plate and production process thereof

The invention discloses a fire retardant coating for an aluminium plate and a production process tereof. The fire retardant coating catalyst is prepared form sodium silicate, simethicone, an adhesionagent, an annexing agent, solvent, a catalyst, a thickening agent, an antibacterial agent, inorganic powder, a film-forming agent, an acid donor, a foaming agent, a synergistic agent, inorganic fillers, a carbonization agent, epoxy resin and cellulose ether; the production process comprises the following steps of raw material preparation, dispersion, grinding, inspection and package; the fire retardant coating is good in environment protection, can continuously exert a flameproof protection effect, is wide in application range, better in fireproof performance and stronger in adhesive strength,and has better chemical corrosion resistance, better heat resistance, better acid-base resistance and better electrical insulating performance; the fireproof performance is slightly affected by timeand environments, the coating further has the advantages of lasting fire resistance, high inflaming retarding efficiency and the like, the flame retardant effect of the coating is strengthened, the effective fireproofing time of the coating is prolonged, the preparation method is simple and convenient, and the efficiency is high.
Owner:TIANJIN MROGAN KUNDOM HI TECH DEV

Layer cluster type wireless sensor network global key management method

ActiveCN111491270ASolve frequent encryption and decryption calculationsSolve the problem of multi-level transmissionKey distribution for secure communicationParticular environment based servicesWireless sensor networkingEngineering
The invention discloses a layer cluster type wireless sensor network global key management method, which comprises the following steps of: establishing a layer cluster type network topological structure, a session key existing between neighbor nodes, and a group key existing in intra-cluster broadcast communication; regarding a base station and all cluster head nodes as a group of nodes, enablingthe base station to receive random secret key information from each cluster head node and construct a Lagrange interpolation polynomial function based on the random secret key information, wherein each cluster head independently acquires a global secret key based on the random secret key information of the cluster head and broadcasts the global secret key to cluster members through group secret key encryption to obtain the global secret key; and enabling each cluster head to periodically generate new random key information and submit the new random key information to the base station to reconstruct a Lagrange interpolation polynomial function, thereby realizing periodic updating of the global key. According to the invention, the establishment and updating of the global key do not need thedirect participation of network nodes, the security is good, the calculation and time expenditure is small, the acquisition is convenient, the problems of frequent encryption and decryption calculation and multistage transmission in the whole network broadcast communication are solved, and the rapid and safe whole network broadcast communication is realized.
Owner:SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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