553results about How to "Reduce purchases" patented technology

The invention discloses an intelligent household information system of an internet of things, which comprises a terminal device system, a secure transmission system, an information management system and an application system; the terminal device system consists of a hardware sub-platform, a system and software sub-platform, an internet of things sub-platform, a 3G sub-platform and an input and output sub-platform, and the system adopts delicate intelligent design, comprises an industrial automation technology, an intelligent technology and a network communication technology and realizes the fusion of two nets; and the sub-platform of the internet of things consists of infrared, Bluetooth, RFID, RS232, RS485, RJ45, USB, DB9, a DB25 common serial interface, a parallel interface, other interfaces and an SAM secure access module. The system does not need message sending or phone activation, realizes complete combination of security defense and household management, overcomes the problems of communication time delay, image effects, unitary instructions and functional defects, has low purchase, maintenance and working cost and truly realizes intelligent active household management.

The invention relates to a method of reducing the heterodyne interference non-linear error first harmonic component and its equipment, the existing kinds of system and the method are all very complex. The invention includes: the light beams which contains two frequencies, two polarization directions and sends out by the double frequency laser; this light beam divides into two bunches of light after the spectroscope, the reflected light forms the reference signal after the analyzer by the photo detector receive; the transmitted light enters the polarization spectroscope to divide into two bunches of light which includes the reflected light of polarization direction vertical paper surface and parallel paper surface transmitted light, the reflected light reflects to the polarization spectroscope after the reference pyramid prism, the transmitted light after survey pyramid prism installed on the swivel table also reflects the polarization spectroscope; above two bunches of light converge in the polarization spectroscope place, and formed the survey signal by the reflector reflection after the analyzer by the photo detector; swivel table axial revolves the survey pyramid prism along the survey pyramid prism heading, swivel table anti-clockwise or clockwise axial revolves 97 degree. The invention uses to increase the heterodyne interference measuring accuracy.

The invention discloses a dynamic running method for a security kernel service of a tristate operating system in a Feiteng CPU. The method comprises the steps of: dividing a kernel into a system state and a kernel state of different privilege levels; establishing a service framework in the kernel state to serve as a container for the security kernel service, and establishing a call interface for the security kernel service; establishing a virtual driving interface in the system state to support a user state to call the security kernel service; loading the service framework and the built-in security kernel service after enabling the CPU to be powered on; and loading a loading part of a system service module and starting a system service, wherein the service framework provides the security kernel service and makes a response to a dynamic loading / unloading request of the security kernel service. The dynamic running method can realize security protection on specific hardware resources of the system, realize security access to a core service of the operating system, efficiently support credibility conformation of the system, effectively improve the system security, lower the security risk of traditional kernel bugs and provide an efficient and flexible credible calculating ecological environment for users.

The invention discloses a tracking photography system and a tracking photography method. The tracking photography method comprises the following steps: a photography system with a communication module, a distance measuring module and a direction sensor obtains the position of a movable terminal with the communication module and a sensor module at a tracking starting moment through the distance measuring communication module and the direction sensor; the movable terminal obtains a current motion state of the movable terminal through an internal sensor module set, and obtains the current position of the movable terminal through computation; the movable terminal sends the current position to a photography device; the photography device performs tracking photography by controlling an electrical platform to align to the position of the movable terminal. The invention provides the tracking photography system and the tracking photography method, which can perform precise positioning and tracking photography on a photographed object without the need of aligning the movable terminal to the photography device deliberately.

The invention discloses a file security control and trace method and system based on digital fingerprints. The method includes the file uploading procedure and the file downloading procedure. In the file uploading procedure, when a user uploads files to a file server, the file server starts a natural language analysis program and conducts full-context scanning and matched analysis on file contexts, a position where the digital fingerprints can be inserted is found, a fingerprint feature position list is generated, the fingerprint feature position list and original files are stored in the file server together, the uploading and downloading record list is generated, and information uploaded this time is recorded. In the file downloading procedure, when the user sends a file downloading request to the file server, the file server generates binary random codes with the same length according to the length of the fingerprint feature position list, when the random code corresponding position is 1, the digital fingerprints are inserted in the contexts at the corresponding position, a new file is generated and sent to the user, and meanwhile the downloaded information is recorded in the uploading and downloading record list. By means of the method and system, the context files can be traced back, and the security of the context files is managed.

The invention provides a test system of a hybrid electric vehicle, which belongs to the technical field of automobile electronics. The test system overcomes the defects of more test personnel, large data acquisition workload, complex operation, large measurement error and the like in the existing method adopting manual monitoring and testing. The test system of the hybrid electric vehicle comprises a CAN bus and a PC machine, wherein the CAN bus is provided with a plurality of nodes; the PC machine is connected with the CAN bus; the PC machine comprises a central processing unit, and a message resolving module, a memorizer and a display which are connected with the central processing unit; a data acquisition module is connected between the CAN bus and the message resolving module; and the data acquisition module is used for acquiring information of each node from the CAN bus and displaying the information on the display after the resolution by the message resolving module. The test system of the hybrid electric vehicle can accelerate research and development, can quickly detect the state and display the fault, and has the advantages of high speed, low electromagnetic radiation, anti-electromagnetic interference, cost saving and the like.

The invention provides a monitoring method for the running state of a substation DC system, belonging to the measurement field. The monitoring method comprises the following steps of: detecting the bus voltage of the DC system, and comparing and outputting the overvoltage / undervoltage alarm signal; the DC component of the bus voltage is detected, meanwhile, the AC component Uac of the bus voltage is also detected by a DC block; the absolute value of the Uac' and the set value Uac'' are compared; if the absolute value of the Uac' is more than the Uac', the control unit outputs a ripple voltage over-limit alarming signal. The invention also provides a monitoring device used for monitoring the running state of the DC system. The monitoring method and the monitoring device realize the dual monitoring function on the DC system, have an effect of dual-use with one machine, provide more effectively ensuring for the safe and stable running of the DC system, reduce the number of the monitoring device, are beneficial to saving the cost of purchase and running and the maintenance workload of the system, and can be widely used for the field of the measurement, monitoring and safe running of the running state of the transformation and distribution DC system.

Direct current solar electric heating elements can be powered by an array of photovoltaic panels. The direct current voltage can be low or high with proper electrocution protection. Insertable immersion heating elements can be placed into any existing, gas, propane or electric hot water tank, cooking pot or hot tub. Heating elements in air can also be used for heating ovens, range cook tops and sauna heaters. The output of the photovoltaic panel is interfaced to the electric heater element via either direct connection or using a load-matching controller which maximizes the power delivered to the heater under all sun conditions. The maximum heater temperature is regulated by a thermostat.

The invention relates to a gas optimization scheduling device of an iron and steel enterprise. The scheduling device is connected with an energy management system and comprises a gas managing device, an optimizing device and a display device, wherein the gas managing device, the optimizing device and the display device are sequentially connected. The gas managing device acquires gas consumption amount historical data, gas generation amount historical data and storage amount data of a gas cabinet in each procedure through the energy management system of the enterprise to predict the production amount and the consumption amount of gas at present or in future; on the basis of the predicted data, the optimizing device adopts improved distribution estimation algorithms to optimize distribution of the gas, and the optimization principle aims to make the scattering amount smallest and the purchasing amount largest; the display device displays the gas distribution scheme obtained by the optimizing device for reference of users, so that the gas can be reasonably distributed. Compared with the prior art, the gas optimization scheduling device has the advantages of reducing the scattering amount and the purchasing amount of the gas and the like.

The invention discloses a simple method for culturing haematococcus pluvialis to produce astaxanthin; the method comprises three culturing processes of narrow neck flask, plastic cask or Nylon bag, cement pit; each step passes through various physical and chemical environmental parameters, such as nitrogen and phosphorus contents, pH value, incubation temperature, illumination intensity, illumination time, exact adjusting and controlling measure of adding with halite or halogeno salt, H2O2 and FeCl2 and cell state, etc; each step has definite object, and reasonable control such that the haematococcus pluvialis has excellent vegetative growth, fast conversion of vegetative growth to non-vegetative growth, and accumulates much astaxanthin, thereby improving the efficiency and stability of culturing, converting and accumulating, and effectively preventing the pollution of mixed algae; because the invention is an open culturing and does not need closed photobioreactor, thereby greatly reducing the production cost and obviously improving the productivity, and open culturing haematococcus pluvialis to produce astaxanthin in large scale.

The invention relates to the field of building engineering materials, in particular to an aerated concrete block production process. Low-density, high-compressive-strength and high-standard-performance aerated concrete blocks are manufactured specifically with quartz sand tailings as main raw materials by adding lime powder, gypsum powder, cement, foaming agents, foam stabilizer, water and the like and conducting the following steps of material preparing, material mixing, stirring, pouring, hot chamber initial setting, blank body cutting, hot chamber standing, microwave autoclaved curing and the like, wherein the grain size of the quartz sand tailings is smaller than 0.125 mm, and by mass, 350 parts to 500 parts of fine quartz tailing powder, 80 parts to 150 parts of lime powder, 20 parts to 30 parts of gypsum powder, 30 parts to 40 parts of cement, 0.3 part to 0.5 part of foaming agents, 0.04 part to 0.06 part of foam stabilizer and 200 parts to 300 parts of water are used. The fine quartz tailing powder with the grain size smaller than 0.125 mm is used as the main silica raw material, waste is used, and the production cost of the aerated concrete blocks is reduced.

The invention provides a garbage embedding fiber covering material which comprises the following components in parts by weight: 5-30 parts of straws, 5-30 parts of paper, 5-20 parts of pulp sludge, 20-50 parts of kaolin, 0.01-0.1 part of eucalyptus bark and 0.01-0.5 part of a microbial strain solution, wherein microbial strains are spore strains. After being used and dried, a coating of the garbage embedding fiber covering material provided by the invention has main dual effects of gas permeability and water guide; a core microbial technology for quickly degrading household garbage organic pollutants is uniquely added to quickly and effectively deodorize and kill flies for a long time; meanwhile, the garbage embedding fiber covering material has the necessary physical strength and flame resistance; moreover, by adding functional additives and grass seeds, operations such as deodorizing, fly killing and greening can be completed by one step in a spraying and covering process.

The invention discloses a bidirectional flow ventilation and air pressure composting method, which comprises the following steps: dwelling pile body with height at 2-2. 5m and upper margin at 0. 5-1. 0m in box compost reactor; inserting three heat indicators and three pile body gap gas sampling pipe into different height; adopting 0. 1-0. 2m3 / min fixing air quantity per m3 initial compost raw material and batch process; venting; changing the direction of ventilation when the biggest differential temperature more than 5 deg. c of the three heat indicators; turning over the pile at the second day for one time one day; compressing the air with impulse; discharging momentary; making the pile body float and drop; testing oxygen concentration of the gas in the pile body per 15 min; finishing the compost when the biggest differential value less than 1. 0% of adjacent twice. This invention possesses low operating cost without twice pollution, which can be used to the compost of life garbage, agricultural waste and sludge of the waste water treatment plant.

The invention relates to a printing process for realizing a matte effect through lithography and flexography and belongs to the field of packaging and printing processes. The traditional offset printing press is generally provided with an online glazing unit with a flexography method; an initially dried or completely dried ink undercoat layer with lower surface tension is printed on a printing stock by using an offset printing process; and then an ink layer, of which the surface tension is 0.004-0.01 N / m larger than that of the undercoat layer, is printed on the undercoat layer by using the flexography method; when flexography ink is printed to the surface of the ink on the undercoat layer, the flexography ink layer is retracted because the surface tension of the flexography ink layer is larger than that of the undercoat layer, so that an obvious matte texture can be obtained after the flexography ink is cured. By controlling the surface tension difference between the undercoat layer and the wet flexography ink, the shrinkage degree of the flexography ink is controlled; and through the adjustments such as inking quantity adjustment and color adjustment, the thickness, color and matte sense of the whole matte effect can be rapidly adjusted.

The invention relates to a method for producing mineral wool by matching molten-state blast furnace slag with mine tailings. Molten-state blast furnace slag is taken as a raw material, the mine tailings are taken as a quenching and tempering agent, two stages of electric furnaces are adopted for heating, a nitrogen spraying and blowing system is arranged at the bottom of each furnace, magma after refinement, homogenization, quenching and tempering is thrown into mineral wool filaments of 3-5 microns by a centrifuge, and a mineral wool product is obtained after being collected by a wool collecting machine. A device for implementing the method comprises the electric furnace I, the electric furnace II, the centrifuge and the wool collecting machine which are sequentially connected. Compared with the prior art, the method and the device provided by the invention have the following beneficial effects that 1) the potential heat energy of the molten-state blast furnace slag is effectively utilized; 2) the shortcomings of high energy consumption and high pollution of a cupola furnace are avoided; 3) the mine tailings are selected as the quenching and tempering agent, so that the operation cost is reduced, the waste of resources is avoided, and the difficult problem of treatment of the mine tailings is effectively solved; 4) the quenching and tempering effect is strengthened and the quenching and tempering of a melt is more uniform; and 5) the acidic system after quenching and tempering is 1.0-2.2, and external heat preservation mineral wool products for exterior walls for buildings can be produced.

The embodiment of the invention provides an array substrate and a preparing method thereof, a display panel and a display device, and relates to the technical field of fingerprint recognition. By integrating a fingerprint recognition device in the array substrate, the integrated control degree of the display device which comprises the fingerprint recognition device is increased. The array substrate comprises a data cable and a grid line which are arranged on a substrate, and is provided with a fingerprint recognition area; the fingerprint recognition area comprises multiple transmitting electrodes and sensing electrodes, wherein the transmitting electrodes and the sensing electrodes are arranged in a staggered mode, the sensing electrodes are located at the sides, deviating from the substrate, of the transmitting electrodes, and each transmitting electrode is electrically connected with the corresponding grid line.

The invention discloses direct-driven centrifugal separation equipment. The equipment is characterized by comprising one or more components of a centrifugal rotary table or a centrifugal rotary barrel (A), a centrifugal rotary drum or a centrifugal rotor (B), a centrifugal liquid collection cavity (C) and a driving system (D). The direct-driven centrifugal separation equipment has the advantages that the size of the centrifugal rotary drum can be changed freely according to needs, and the centrifugal rotary drum can be placed in and taken out easily and conveniently; the centrifugal liquid collection cavity serving as a system main body is integrally manufactured through the integral forming technology, the manufacturing process is simple, and the cost is low; the whole centrifugal system is simple, practical, capable of saving energy, environmentally friendly and convenient to apply and popularize.

The invention discloses an environment-friendly, sanitary and saving type meat breeding duck fermentation bed raising house and belongs to the technical field of poultry raising. The environment-friendly, sanitary and saving type meat breeding duck fermentation bed raising house is mainly characterized in that a breeding duck shed comprises a bottom inflation fermentation bed, and the bottom inflation fermentation bed comprises a fermentation bed cushion layer and an inflation fermentation system below the fermentation bed cushion layer; the fermentation bed cushion layer comprises a surface layer discrete padding layer with the thickness of 20 cm and a lower layer straw layer with the thickness ranging from 15 cm to 20 cm; the inflation fermentation system comprises an inflation power device and an inflation pipeline device connected with the inflation power device and located below the cushion layer. Due to the environment-friendly, sanitary and saving type meat breeding duck fermentation bed raising house, the problem that fermentation bed padding hardens because of biological characteristics of ducks is effectively solved, the aerobic degradation capacity of fermentation bed padding for dung of the breeding ducks is improved, emission of foul gas and greenhouse gas is reduced, and the aerobic degradation capacity for dung of the breeding ducks is improved; the water requirement in the drought raising stage is met by a drinking device and a spraying cleaning device, and meanwhile, consumption of water sources is reduced.

The invention provides an inflight meal cart which comprises a chassis, a chassis part and a mounting part. The chassis is connected with the mounting part through a fork frame, the mounting part comprises a compartment and a four-directional platform arranged on one side of the compartment, a first hydraulic system and a second hydraulic system which are independent mutually are arranged on the mounting part and the chassis. The first hydraulic system is used for driving the mounting part to move so as to be aligned to a cabin door of an aircraft. The second hydraulic system is used for driving the chassis part to support the chassis and driving the fork frame to lift.

The invention discloses a cloud deck photography system and a cloud deck tracking photography method. The cloud deck photography method comprises the following steps: an electric cloud deck obtains a position of a movable terminal at a tracking starting moment through a near field communication module and a direction sensor; the movable terminal obtains a current movement state of the movable terminal through a built-in sensor module set and obtains a current position of the movable terminal through computation; the movable terminal sends the current position to the electric cloud deck through the communication module; the electric cloud deck performs tracking photography by aligning to the position of the movable terminal. The invention provides the cloud deck tracking photography system and the cloud deck tracking photography method which can perform precise positioning and tracking photography on a photographed object without aligning the movable terminal to the photography device deliberately. Meanwhile, the movable terminal is subjected to initialization positioning and setting through the near field communication module of the electric cloud deck, so that the positioning precision during initialization is improved and the operation complexity is lowered.

The invention discloses a measuring method for simultaneously obtaining the temperature-variable thermal conductivity coefficient and absorption coefficient of a semi-transparent material and relates to a technology for simultaneously obtaining the temperature-relevant thermal conductivity coefficient and absorption coefficient of a semi-transparent medium. The measuring method comprises the steps of irradiating a sample to be measured by using continuous laser with a certain wavelength in the measuring process; measuring the time-variable temperature response and transmission radiation intensity of the sample to be measured by virtue of a detector; and finally, indirectly obtaining the temperature-variable thermal conductivity coefficient and absorption coefficient of the sample to be measured by using an inverse problem solving technology. Through establishing positive and reverse problem models of coupled heat conduction and radiation heat transfer of the semi-transparent medium of which the thermal conductivity coefficient and the absorption coefficient are changed along with temperature, the method for obtaining temperature-relevant thermal conductivity coefficient and absorption coefficient of the semi-transparent medium through simultaneous inversion realized by using a particle swarm optimization algorithm is proposed on the premise that other parameters of the medium are known. The measuring method is suitable for spaceflight, national defense and civil industry.

The invention discloses a method for replacing the bearing of a large ladle turret. The method comprises the following steps of detaching associated devices for a protective purpose and preparing an assisted strut, jacking the upper device of the large ladle turret, replacing the bearing of the large ladle turret, lowering the upper device down, and recovering the detached device. The method for replacing the bearing of the large ladle turret only relates to the basic process of setting a hydraulic jack, the upper device on the large ladle turret does not need to be detached, dedicated lifting appliances are not needed, a molten steel receiving bay crane is not needed, and a large-scale trunk crane does not need to be rent, and normal equipment production in a molten steel receiving bay is not influenced. The method for replacing the bearing of the large ladle turret is safe, reliable, saving in cost and capable of shortening construction period greatly.

Provided is a multi-unit turbine steam flow real-time distributing method based on a main pipe scheme. The historical steady-state data of piping-main scheme units are processed through the data mining technology when each turbine independently runs, a power and steam inlet hot flow function relationship calculating model of each turbine is established, when all the turbines of the units simultaneously run, inputting the loads, main pipe steam pressure and steam temperature data, collected in real time, of all the turbines to the calculating model, outputting the steam inlet hot flow, corresponding to current control boundary conditions, of all the turbines through the calculating model so as to calculate steam flow required to be distributed to all the turbines, and considering the influences of changes of all the turbines along with the running time on the characteristic changes of the turbines through a regular calculating model renewing method.

The invention provides an application method and an application system of a multifunctional cooling tower. The application system of the multifunctional cooling tower is characterized in that the application system can provide a natural cold source and / or a water cooling mechanical cold source; refrigeration equipment, a three-way valve I, an inner circulation system of a closed cooling tower, a system pressure stabilization and water replenishing device, a circulating pump, a three-way valve II and a water chiller are orderly communicated by pipes and form a first loop; and the water chiller, a three-way valve III, a spray pump and an outer circulation system of the closed cooling tower are orderly communicated by pipes and form a second loop. The application system and the application method of the multifunctional cooling tower can provide natural cold source states and flexibly select cold source taking ways according to temperatures of an inlet and an outlet of the refrigeration equipment and a natural environment, realize that the closed cooling tower has functions of the existing closed cooling tower and the existing open cooling tower, avoid utilization of an open cooling tower, reduce a cost and energy consumption, save energy and a floor space, reduce installation and maintenance time, improve reliability and prolong a service life of the whole application system.

The present invention relates to azeotopic distillation process for separating butanol and butyl acetate. The technological process is completed with the apparatus including rectification tower (1), rectification tower (5), rectification tower (9), kettle reboiler, condensate cooler and phase splitting tank. The technological process includes feeding the material liquid in the middle part of rectification tower (1) and refluxing partial heavy water phase into the tower; refluxing light phase; obtaining butanol product in the kettle; refluxing partial light phase while recovering partially to the rectification tower (5); refluxing partial light phase while obtaining butyl acetate product in rectification tower (5); and feeding the heavy phase to rectification tower (9) and obtaining pure water in the kettle. The present invention has low power consumption, less side products, high butanol product quality, recovery of butyl acetate and high economic effect.

The invention relates to a tool for manually dismounting and mounting a tire in vehicle maintenance detection equipment, and particularly relates to a quick device for manually dismounting and mounting a tire and a use method of the quick device. The device mainly comprises an upright column, a supporting shaft and a three-jaw chuck; a tire pressing bar is arranged on the upright column, a tire pressing spade is arranged on the tire pressing bar, a cam is arranged on the upright column, and an extension spring is arranged between the upright column and one end of the cam; a clamping block is arranged on the upright column, one end of the clamping block is positioned on the protruded face of the cam, and the clamping head end of the clamping block is positioned at the inner side of the upright column on which a platform is arranged; and a cone pulley is arranged on the supporting shaft; a pedal is arranged on the upright column, and a rope is connected between the pedal and one end of the cam; and the connection between the upright column and the tire pressing bar, between the tire pressing bar and the tire pressing spade, between the upright column and the cam and between the upright column and the clamping block is achieved by movable shafts. The device can meet the requirements of tire dismounting, mounting and maintenance of various vehicles such as motorcycles, cars and electric vehicles, and the problems that the existing manual tire changers are troublesome in mounting and dismounting and time-wasting, the power source tire changers can not work without a power source, and the like are solved.

A memory management method for a MFP is disclosed. First of all, receive a request of executing an appointed function and then check available memory for executing such request. If the available memory is not enough for the job, then indicate this situation. Close at least one presently idle function to release its corresponding memory. Allocate the released memory for execution of the appointed function. After the appointed function has been finished, the closed function is re-opened. Thereby, the memory can be flexibly allocated as desired without manual operation.

The invention discloses a flue gas desulfurization, denitration and demercuration integrated device with a circulating fluidized bed and a method. A circulating fluidized bed reaction tower in the device is sequentially provided with a smoke chamber, a venturi tube, a first-order reaction zone, a shrinking opening, a second-order reaction zone and a reaction tower outlet from bottom to top, and atomizing spray guns are respectively arranged in the first-order reaction zone and the second-order reaction zone; 4-6 bypass pipelines are uniformly arranged outside the circulating fluidized bed reaction tower, and an inlet and an outlet of each bypass pipeline are respectively connected with the smoke chamber and the bottom of the second-order reaction zone; oxidizing agent adding openings are formed in an absorbent activator and a returning material activator, and activated absorbents and returning material ash directly enter the bottom of the first-order reaction zone. Through site digestion of calcium-based absorbents, structural improvement of the circulating fluidized bed reaction tower and optimization of operating parameters, on the basis of ensuring the desulfurization efficiency, the device strengthens the catalytic oxidation ability of the absorbents in the first-order reaction zone to NOx and gaseous elemental mercury (Hg0). The device realizes integration of desulfurization, denitration and demercuration through the reasonable combination of the first-order reaction zone and the second-order reaction zone.

Novel methods for the production of iron, silicon, and magnesium metal from extraterrestrial and terrestrial resources are described. The methods employ processing steps including metal oxide reduction using carbon monoxide, carbon, hydrogen, and methane. Methods to prepare, regenerate, and recycle reductants to minimize mining and purchase of fresh materials and to minimize carbon emissions are included.