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42results about How to "Optimal balance" patented technology

Optimizing method and apparatus for internet based payment risk control system

The invention discloses an optimizing method and apparatus for internet based payment risk control system wherein the internet based payment risk control system comprises a risk control policy pool where the control policy pool is provided with a plurality of policies. The optimizing method comprises of obtaining an optimizing model through machine learning wherein the optimizing model is used to combine at least two policies to form a best policy combination whose balance state is better than the balance state of any single policy of the best policy combination and better than the balance state of the policy combination formed by any single policy with the rest policies in the risk control policy pool wherein the balance state of the policies/policy combination is measured by the harmonic mean of the accuracy to identify fraudulent orders and the coverage rate for covering the fraudulent orders by the policies/policy combination. The optimizing method and apparatus of the invention increase the operation efficiency of the existing policies and models of a traditional internet based payment risk control system, therefore, enabling the risk control policies and models to identify frauds more accurately and to cover more fraudulent orders.
Owner:CTRIP TRAVEL NETWORK TECH SHANGHAI0

Offshore floating type draught fan and draught fan foundation thereof

The invention relates to an offshore floating type draught fan and a draught fan foundation thereof. The draught fan foundation comprises a floating barrel structure, a support structure, a ballast tank, an upper-layer fixing device and a lower-layer fixing device. The ballast tank is located below the floating barrel structure. The floating barrel structure and the ballast tank are connected through the support structure. The ballast tank is of a flat box structure, and the outer contour of the ballast tank is larger than that of the floating barrel structure. The upper-layer fixing device comprises a plurality of upper-layer cables, the upper-layer cables are evenly distributed around the floating barrel structure, the upper ends of the upper-layer cables and the floating barrel structure are fixed, and the lower ends of the upper-layer cables and the seabed are fixed. The lower-layer fixing device comprises a plurality of lower-layer cables, the lower-layer cables are evenly distributed around the ballast tank, the upper ends of the lower-layer cables and the ballast tank are fixed, and the lower ends of the lower-layer cables and the seabed are fixed. The offshore floating type draught fan and the draught fan foundation thereof have the beneficial effects of being simple in structure, good in stability, not likely to be damaged, high in adaptability to water depth and especially suitable for sea areas with large water depth.
Owner:NEW UNITED GROUP

Dual-sucking energy-saving beam-pumping unit

The invention discloses a dual-sucking energy-saving beam-pumping unit. The dual-sucking energy-saving beam-pumping unit comprises sucker rods, driving horseheads, loading horseheads, a beam, a beam frame, driving wires and driving systems. The two ends of the beam is symmetric and all comprise one driving horseheads and one loading horseheads, the driving horseheads are connected with the corresponding driving systems through the driving wires, the loading horseheads are connected with the corresponding sucker rods, the structures of the driving systems on the two sides are the same, and thedriving systems all comprise driving units, traction units and counter weight units.When the left side driving unit moves downward, the left side traction unit draws the left side driving horsehead tomove downward, the left side loading horsehead and the left side sucker rod move downward, the right side loading horsehead draws the right sidesucker rod to move upward under the action of driving force of the left side driving system, and meanwhile, the right side driving unit moves upward initiatively, and the moving speed is higher than the downward moving speed of the left side driving unit,a right side counter weight fails to work, and back and forth. The dual-sucking energy-saving beam-pumping unit is driven by a gear and a gear rack, the counter weight can be adjusted correspondinglyaccording to actual working conditions of two wells, the balancing property is good, and the energy-saving effect is significant.
Owner:杭州中油智井装备科技有限公司

Deep sea autonomous attitude adjustment sampling system and attitude adjusting method thereof

ActiveCN109540575ASimplify the attitude adjustment processImprove attitude adjustment efficiencyWaterborne vesselsWithdrawing sample devicesPropellerControl mode
The invention discloses a deep sea autonomous attitude adjustment sampling system and an autonomous attitude adjusting method thereof. The sampling system comprises a sample assembling rack, a sampler, a battery chamber assembly, an MCU master control assembly, a propeller assembly and a clinometer. The clinometer and the propeller assembly are electrically connected with the MCU master control assembly. The propeller assembly comprises four sets of propellers. The four sets of propellers are correspondingly arranged at periphery of the sample assembling rack and are orthogonally arranged in atwo-to-two facing manner. Furthermore high integral structure design stability is realized. In sampling system attitude adjustment, self-learning is realized based on a balance algorithm. Action of the propeller is realized in a torque control mode. Simple and quick controlling is realized. The propellers are used for keeping an accurate seabed landing attitude of the sampling system, thereby realizing autonomous attitude adjustment of the system in a dropping process. Furthermore various actions are executed through setting one cycle. The sequence of the actions is determined according to the action sequence score. The deep sea autonomous attitude adjustment sampling system and the autonomous attitude adjusting method thereof have advantages of ensuring high speed in reaching an optimalbalance state in attitude adjustment and effectively improving efficiency in acquiring deep sea seabed surface-layer deposit.
Owner:QINGDAO INST OF MARINE GEOLOGY

Electrode molybdenum sheet assembly for ultrahigh-voltage point light source and forming method thereof

The invention relates to an electrode molybdenum sheet assembly for an ultrahigh-voltage point light source and a forming method thereof. The electrode molybdenum sheet assembly is composed of a sealing-in molybdenum sheet, a transmitting electrode and an outgoing line, wherein the transmitting electrode and the outgoing line are welded to the two ends of the sealing-in molybdenum sheet. The sealing-in molybdenum piece is of an arc structure or a peak-shaped structure, the transmitting electrode is composed of a single core rod or a core rod and a spring connected to the front end of the core rod in a sleeving mode. The outgoing line is a molybdenum rod outgoing line, the tail of the outgoing line is of a diamond or hook-shaped structure, and the middle of the outgoing line is of a straight-rod-shaped or wave-shaped structure. One end of the sealing-in molybdenum sheet is provided with a laser electric welding spot connected with the transmitting electrode in a welding mode. Multi-point laser welding is conducted through a laser outgoing head, the transmitting electrode is connected to one end of the sealing-in molybdenum sheet in a welding mode, and the outgoing line is connected to the sealing-in molybdenum sheet in a welding mode and coaxially arranged with the transmitting electrode through the other end of the sealing-in molybdenum sheet in a resistance spot welding mode. Compared with the prior art, the welding quality and consistency are ensured, the bearing strength of the molybdenum sheet is improved and accurately controlled, straightness in the packaging process can also be improved, and accurate positioning is achieved.
Owner:上海亚尔精密零件制造有限公司

Treatment device and treatment method of aviation kerosene VOCs (volatile organic compounds)

The invention discloses a treatment device and a treatment method of aviation kerosene VOCs (volatile organic compounds). VOCs gas is treated with a three-level condensation and adsorption manner. According to the scheme, the flowing smoothness of a condenser is improved through optimization of the condenser, and long-time and stable operation of condensation equipment is effectively guaranteed; besides, the last uncondensed gas in three-level condensation is taken as a cold medium of a precooler for use, and energy consumption is effectively saved; besides, special activated carbon in an adsorption system is only arranged at the straight cylindrical section of an adsorption tank, the diameter-length ratio of the special activated carbon is controlled in the range of 0.6-0.8, adsorption and desorption can reach the best balance state, waste gas can be uniformly and sufficiently adsorbed, and rapid desorption of the activated carbon can be realized. The treatment device provided by thescheme is reasonable in design, has the advantages of long and stable operation of equipment, environmental protection, energy saving, small floor area and high return on investment of equipment and can realize the good purification effect on the VOCs gas in cooperation with the treatment method.
Owner:湖北楚天蓝环保设备工程有限公司

Iterative approximation follow-up leveling control method and device for beam-pumping unit

The invention provides an iterative approximation follow-up leveling control method for a beam-pumping unit, and the method comprises the steps: firstly analyzing the movement rule and energy circulation mechanism of a pumping unit system, and building an incidence relation mathematic model between the change of an input electric power integral value of a motor and the balance degree of the pumping unit; secondly, collecting real-time operation electrical parameters of the beam-pumping unit, and calculating the power integral ratio of unit stroke or multi-stroke up-stroke and down-stroke to detect the balance degree of a pumping unit system on line; and finally, according to the calculated balance degree, judging the balance state of the oil pumping unit operation system, and adopting a servo method to control a motor to drive a lead screw to adjust the position of the balance box body to change the balance torque so as to adjust the optimal balance state of the oil pumping unit. Compared with the prior art, the iterative approximation follow-up leveling control method and the iterative approximation follow-up leveling control device for the beam-pumping unit have the advantages that the working efficiency and the production safety coefficient of balance adjustment of the pumping unit are improved, the energy saving rate can reach 3 percent, and the engineering applicability ishigh.
Owner:XIAN HIRATE NET ELECTRIC EQUIP CO LTD

Drainage valve noise reduction structure with overflow pipe

The invention discloses a drainage valve noise reduction structure with an overflow pipe. The drainage valve noise reduction structure comprises a base of a drainage valve and the overflow pipe, a drainage channel and an overflow channel are arranged in the base, the inlet of the overflow channel is communicated with the overflow pipe, the outlet of the overflow channel is communicated with the drainage channel, the overflow pipe is communicated with the drainage channel through the overflow channel in the base, a water blocking part is arranged in the drainage channel, and the water blocking part brings in part of water flow and blocks the same in the overflow channel when water is drained from the drainage channel to enable water seal to form in the outlet of the overflow channel. By the arrangement that the water blocking part is arranged in the drainage channel and brings in part of the water flow and blocks the same in the overflow channel when the water is drained from the drainage channel to enable the water seal to form in the outlet of the overflow channel, so that the problem that outside air is fed in the drainage channel of the drainage valve from the overflow pipe to produce continuous noise is effectively avoided; the drainage valve noise reduction structure is simple in structure, ingenuous in concept and obvious in noise reduction effect.
Owner:XIAMEN R&T PLUMBING TECH

An input signal acquisition device and method for an independent pitch control system

The invention discloses an input signal acquisition device of an independent variable-pitch control system. The input signal acquisition device comprises a sensor bracket which is connected with a cross rod in front of a wheel hub, and a sensor bracket which has a first distance from the wheel hub. Axial direction of the sensor bracket and the cross rod is coaxial with the rotation axial direction of the wheel hub, the sensor bracket is synchronously rotated with the cross rod in a running process of an impeller, at least a receiving-transmitting device is installed in the sensor bracket, and the at least one receiving-transmitting device and a host machine installed in a cabin of a fan together constitute a laser Doppler radar wind measurement system. The receiving-transmitting device is used for transmitting a bundle of narrow band laser pulses with stable frequency and controlling the laser pulses to point to a set measure point area in an inflow area in a set slope angle so as to obtain Doppler frequency shift data so that the host machine can calculate the average wind speed in the set measure point area according to the Doppler frequency shift data. The invention also discloses an input signal acquisition method of the independent variable-pitch control system.
Owner:SINOVEL WIND GRP

A mobile semiconductor thermoelectric generator

The invention belongs to the technical field of application of semiconductor temperature difference power generation, and particularly relates to a moveable semiconductor temperature difference generator. The moveable semiconductor temperature difference generator comprises a mobile station, a constant temperature heater, a heat sink, a circuit board box, a temperature difference generating device and a power box, wherein the constant temperature heater, the heat sink, the circuit board box, the temperature difference generating device and the power box are fixed on the mobile station; the temperature difference generating device is formed by series connection of semiconductor temperature difference power generation sheets, a layer of porous nanometer metal film for covering is arranged between each two adjacent semiconductor temperature difference power generation sheets in a semiconductor temperature difference power generation sheet group, the two surfaces of the formed semiconductor temperature difference power generation sheet group are respectively in mutual and close contact with a guide pipe of the heat sink and a heating plate of the constant temperature heater; a lighting device comprises lighting panels, the surfaces of which are covered by hierarchical pore TiO2 / quantum dot / dye laminated structures; the lighting panels are in tight contact with hot ends of the semiconductor temperature difference power generation sheet group. Compared with the prior art, the moveable semiconductor temperature difference generator has the advantages that the generating efficiency of the moveable semiconductor temperature difference generator can reach 8-9%, and the moveable semiconductor temperature difference generator can conveniently move, is stable to operate and can be commercially applied on a large scale.
Owner:SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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