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186results about How to "Reduce the cost of protection" patented technology

Tumbling risk assessment, monitoring system and assessment method on basis of multi-motion sensors

The invention provides a tumbling risk assessment, a monitoring system and an assessment method on the basis of three nine-shaft motion sensors. According to the tumbling risk assessment, the monitoring system and the assessment method, the tumbling state detecting, the tumbling risk detecting and tumbling protecting device control are achieved. The monitoring system comprises an information collecting module, a wireless communication module and a date analyzing module. The three nine-shaft motion sensors are mainly used, two of the nine-shaft motion sensors are placed in two shoes, and another is placed on the wrest; original data of the accelerated speed, the angular speed and the angle are obtained through the three sensors, a Bluetooth module is used for transmitting a data signal, and the signal is transmitted to a data analyzing terminal. The tumbling state is detected by analysis on various data signals through the motion sensors, and the tumbling risk is assessed and fed back to a tester by the combination with the standard of a Tinetti assessing table. The invention further discloses a gait assessment method, according to the method, through various signal types such as the accelerated speed, the angular speed and the angle, modeling is conducted on human bodies, gait characteristics are extracted, and assessment is conducted with Tinetti.
Owner:ZHEJIANG UNIV

Software authorization management method and software authorization management system

The embodiment of the invention discloses a software authorization management method and a software authorization management system. The software authorization management method comprises the following steps: a user side searching authorization information locally by utilizing an authorized agency integrated in software business according to the operation of the software business initiated by a user, wherein the authorization information comprises effective user side hardware information and effective user side quantitative restriction; if the authorization information is searched, the authorized agency judging whether the authorization information is effective or not according to a preset authorization judgment rule, if the authorization information is effective, permitting the user to use the business on the user side; if the authorization information is ineffective, sending an application authorization request to an authorization management server, and thus obtaining an authorization file; if the authorization information is not searched, the authorization agency searching the authorization file locally, and if the authorization file is searched, installing the authorization file so as to obtain the authorization information; if the authorization file is not searched, sending the application authorization request to the authorization management server, and thus obtaining the authorization file.
Owner:深圳市国信互联科技有限公司

Antimicrobial biodegradable packaging hose material and method for preparing hose using same

ActiveCN103980686AMitigate the environmental situationProtect the stability of useFlexible pipesChemistryAntimicrobial
The invention relates to an antimicrobial biodegradable packaging hose material and a method for preparing a hose using the same. The packaging hose material is characterized by comprising the following raw material components in percentage by mass: 60-98% of biodegradable resin, 0.5-15% of antimicrobial masterbatch, 0.5-1.0% of antioxidant, 0.5-15% of plasticizer and 0.5-10% of other additives. The method for preparing the hose comprises a method for preparing the antimicrobial masterbatch and a method for preparing the hose, wherein the method for preparing the antibacterial masterbatch comprises the step of carrying out double-layer coating on an antimicrobial agent on the surface of the fluidized bed; the method for preparing the hose comprises the steps of firstly mixing raw materials according to the raw material components of the packaging hose material and the mass percent, preparing into by an extrusion blending method in an extruder, molding the hose material, carrying out four-section layered cooling method and double-layer opposed rotation cutter treatment, molding an injection head, casting the shoulder, and then adding a layer of a photocured waterborne pre-printing processing layer on the surface of entire hose body.
Owner:浙江嘉亨包装技术有限责任公司

Preparation process of inorganic copper imitation coating and process for replacing protective and decorative copper layer of metal surface with inorganic copper imitation coating

The invention provides a preparation process of an inorganic copper imitation coating and a process for replacing a protective and decorative copper layer of a metal surface with the inorganic copper imitation coating, and belongs to the field of metal protection and decoration. The preparation process of the inorganic copper imitation coating comprises the following steps of: by taking potassium silicate and silica sol as adhesives of the coating, adding fumed silica as filler of the coating to a mixed solution of potassium silicate and silica sol; then adding a silane coupling agent and a wetting dispersant as assistants used for improving the coating performance; finally adding antique brass pigment fillers to obtain the copper imitated inorganic silicate coating. The coating prepared by the method can replace the protective and decorative copper layer of the metal surface, and is applicable to the field of metal protection and decoration. The inorganic copper imitation coating prepared by the method is high in protection and decoration performance, avoids galvanic corrosion caused by the copper layer, saves the protection cost, has performance superior to a copper coating, and also has the advantages of being low in cost, environment-friendly, high in corrosion resistance, high in cohesion, etc.
Owner:HARBIN INST OF TECH

Differentiation based power transmission network anti-disaster ability planning method

InactiveCN103679294AImprove disaster resilienceOptimize disaster resistance protection levelForecastingLoad SheddingPower grid
The invention discloses a differentiation based power transmission network anti-disaster ability planning method which is used for improving an anti-disaster ability of a power transmission network when a meteorological disaster occurs. The differentiation based power transmission network anti-disaster ability planning method comprises the steps of: firstly, developing an IEEE standard based tri-state meteorological condition to obtain a relationship between a fault rate of a power transmission line at different anti-disaster protection levels and the meteorological disaster; obtaining a fragility index and a goal by utilizing Monte Carlo simulation and an optimized load shedding algorithm. The fragility index and a planned construction cost serve as an objective function of multi-goal power transmission network planning; an NSGA-II algorithm is used for obtaining optimal Pareto disaggregation of a power distribution network planning scheme and is used for decision-making in the later period. The verification shows that the provided power distribution network planning method can determine the anti-disaster protection level of each power distribution line exactly, accordingly improves the anti-disaster ability of the power distribution network efficiently when the meteorological disaster occurs, meanwhile reduces line construction cost to the maximum extent and achieves important reference value for the planning of the power distribution network in the environment where meteorological disasters occur frequently.
Owner:STATE GRID CORP OF CHINA +2

SCR for electrostatic protection, chip and system

The invention provides a semiconductor controlled rectifier (SCR) for electrostatic protection, a chip and a system, relates to the electronic technology field and can realize start voltage reduction and maintenance voltage improvement. The SCR comprises a semiconductor substrate, and a first well, a second well and a third well which are arranged on the semiconductor substrate, wherein conductive types of the first well and the third well are identical, the second well is in a different conductive type, the first well is internally provided with a first heavily doped region and a second heavily doped region, the first heavily doped region and the second heavily doped region are different in conductive types, the first heavily doped region and the first well are identical in conductive types, the third well is internally provided with a third heavily doped region, the third heavily doped region and the third well are identical in conductive types, the second well is internally provided with a fourth heavily doped region, the four heavily doped region and the second well are identical in conductive types, the fourth heavily doped region extends to the first well and the third well, a first gap is arranged between the fourth heavily doped region and the second heavily doped region, and a metal gate is arranged at the first gap.
Owner:HUAWEI TECH CO LTD

Electric vehicle arranging structure

The invention belongs to the field of electric vehicle arranging, and provides an electric vehicle arranging structure which ingeniously solves the problems that battery arranging is hard, temperature is not even, the battery can easily catch a fire when being collided, the whole vehicle is not reasonable in arrangement, and cost is high. A battery pack (2) is arranged in a center channel (3) in the front-back longitudinal direction of a whole vehicle (1), movable joints (5) are arranged between battery pack bodies (4), and a gear switch (6), a hand brake (7), an emergency stop switch (8) and a balancing, temperature-controlling and liquid level display device of the battery pack (2) are arranged on the center channel (3). The two ends of the battery pack (2) are respectively provided with an electric control part (19), a direct-current convertor (20) and a mechanical buffer (21). The electric vehicle arranging structure is used for electric sightseeing vehicle, scooters, cars and the like, the whole vehicle is compact in arrangement, and a large space is saved; the axle load ratio can be easily adjusted; battery temperatures are consistent, and batteries are more safe when being collided; cost of the vehicle body and wiring harnesses is lowered; starting driving force is strong, and steering is flexible; electric energy can be saved when the vehicle passes through an uneven road face; the electric vehicle arranging structure is scientific, convenient to operate and more attractive.
Owner:崔玲

Leadless radiation protection barium plate and method for producing the same

The invention relates to a radiation protection material in the ionizing radiation protection field, and a production method thereof, in particular to a lead-free radiation protection barium board and a production method thereof. The lead-free radiation protection barium board adopts raw materials which are barium salt with the granularity of 300-500 meshes, portland cement and reinforcing fiber, and comprises the following components (part by weight): barium salt: 80-130, portland cement: 15-35 and reinforcing fiber: 5-28. The raw materials are made into mixed slurry and then made into boards with the thickness of 6mm-12mm on a cylinder extrusion machine, and multilayer boards are superposed and pressurized on a punch press of 2500T for 30-70 minutes for molding; the boards are treated with high-temperature steaming for 10-26 hours at 60-120 degrees, and then the lead-free radiation protection barium board is obtained after sanding. The product has stable protection performance, no lead or lead compounds contained in the raw materials, safety and harmlessness, fire prevention, moisture-proof performance, high-temperature resistance, stable geometric dimension, mechanization batch production, low cost with the price of only 1 / 3 of that of the lead plates with the same thickness, and simple production method.
Owner:JINAN DAHUA YITE ENVIRONMENTAL PROTECTION ENG

Weak link identification method of diesel engine electronic control system under strong electromagnetic pulses

ActiveCN110147849AImprove electromagnetic environment adaptabilitySolve the problem of significantly increased calculationCharacter and pattern recognitionResourcesElectronic control systemEngineering
The invention relates to a weak link identification method for a diesel engine electronic control system under strong electromagnetic pulses, and belongs to the field of weak link identification of systems under strong electromagnetic pulses. Firstly, the prior failure probability from a part to a system level under strong electromagnetic pulses is predicted, then the posterior probability of faults of all electric control parts under the engine failure condition is calculated according to a Bayesian probability formula and ranked to identify weak links of the electric control parts, and the part needing key protection is selected when an electromagnetic protection scheme is designed. Advantages are as follows: under the condition that the samples are limited, weak links of the diesel engine electric control part under strong electromagnetic pulse irradiation can be identified; the method has universality, and solves the problems that the test method is high in cost, weak link identification cannot be carried out under the condition that sample data is limited, and the test method is poor in universality due to multiple uncertain factors of parameters such as a strong electromagnetic pulse irradiation source and electromagnetic sensitivity of an electric control part; protection cost is saved, and electromagnetic environment adaptability of the engine is improved.
Owner:JILIN UNIV

Methodof producing zeolite molecular sieve by utilizing tailings

The invention discloses a method of producing a zeolite molecular sieve by utilizing tailings. The method comprises the following steps: (1) preprocessing tailings: carrying out acid pickling, high-temperature melting and magnetic absorption on the tailings to remove iron impurities in the tailings; (2) preparing alkali fusion clinker: mixing alkaline solid particles and the tailings to obtain a mixture I, grinding the mixture I, then adding an aluminum compound into the mixture I to adjust an Si / Al ratio, and then roasting the mixture I to obtain the alkali fusion clinker; (3) hydrothermally synthesizing: cooling the alkali fusion clinker, then porphyrizing the alkali fusion clinker, adding deionized water into the alkali fusion clinker, mixing, stirring and aging to obtain a mixture, crystallizing the mixture under self-generated pressure, taking out the mixture, cooling, filtering, washing, and then drying to obtain a finished product molecular sieve. The tailings are used as a main raw material, a zeolite molecular sieve is prepared in an alkali fusion hydrothermal method, the specific surface area of the prepared zeolite molecular sieve reaches 564.2m<2> / g, the density reaches 2.11g / cm<3>, and the prepared zeolite molecular sieve has the performance parameters of a commodity molecular sieve. By adopting the method, solid waste is recycled, the gap of the prior art is filled, and the high-added-value regeneration and utilization of the tailings is realized.
Owner:陕西宏科绿色建材有限公司

A tubular concentrator photovoltaic cell assembly

ActiveCN103456823BOptimize heat dissipation structureEconomical and reliable heat dissipation structureSolar heating energySolar heat devicesCell assemblyEngineering
A tubular concentrating photovoltaic assembly, comprising a glass tube (101), at least one group of concentrating optical system (103) correspondingly arranged in the glass tube (101) and a photovoltaic cell array, is characterized in that the photovoltaic cell array includes a plurality of photovoltaic cell array units in array arrangement, wherein the photovoltaic cell array units include at least one photovoltaic cell (104) and a thermal diffusion structure (106) arranged at the back of the photovoltaic cells (104), the thermal diffusion structure (106) and the back of the photovoltaic cell (104) are in heat conduction contact and the thermal diffusion structure (106) is tightly contacted with the inner wall of the glass tube, heat of the photovoltaic cell array units are diffused to the glass tube wall with a large area and is transmitted to the environment outside the glass tube (101) by the glass tube wall; and the concentrating optical systems (103) reflect sunlight to the surfaces of the photovoltaic cell (104). The tubular concentrating photovoltaic cell assembly can track the sun in real time, the condensation multiple is high, the assembly with the low cost can be manufactured simply, and the assembly is suitable for large-scale arrangement of various occasions.
Owner:刘庆云
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