39results about How to "Overcome high cost" patented technology

The invention discloses an indoor robot positioning navigation method and device. The method comprises using a camera on a robot to shoot an image containing a calibration plate positioned above the robot; using an image processing technology to recognize the calibration plate in the image, determining a current position and a current deviation angle of the robot according to the calibration plate in the image and known coordinates of the calibration plate, and positioning absolute positions of the robot; by taking the current position and the current deviation angle as a reference, navigating the robot by adopting an inertia navigation manner. By using the invention, problems of low positioning precision, high cost, inconvenient use and narrow use range of the existing positioning navigation method are solved.

The invention relates to an intelligent video monitoring system based on a distributed wireless sensor network. The wireless sensor network is effectively combined with an video image monitoring system, and the system is mainly composed of an intelligent video monitoring device, transmission nodes, sink nodes, a video data cloud service center and a user access terminal. Early-warning information is transmitted to the sink nodes by the intelligent video monitoring device through the wireless sensor network, the information is transmitted to the video data cloud service center or the user access terminal by the sink nodes through an Internet or a mobile communication network, and the video data cloud service center is used for storing historical data and allows the user access terminal to have real-time access. The intelligent video monitoring system based on the distributed wireless sensor network fully combines the advantages of the video monitoring system and the advantages of the wireless sensor network and thus has the advantages of being intelligent in early warning, sensitive in reaction, easy for a user to operate, convenient to deploy and maintain and the like.

The invention discloses a method for preparing silicon tetrafluoride by quartz sand, which comprises the following steps: taking 1000-1100 parts by weight of sulfuric acid with the concentration of 96-98% by mass percent and 560-575 parts by weight of hydrofluoric acid with the concentration of 50-52% by mass percent to be premixed together and absorbed, after the premixing and the absorption, obtaining the hydrofluoric acid with the concentration of 11-24% and the sulfuric acid with the concentration of 80-85%, and then obtaining a mixture A; taking 200-220 parts by weight and 150-200 meshes of silica powder and 500-550 parts by weight of the sulfuric acid with the concentration of 80-85% in mass percent to be premixed together, and obtaining a mixture B; adding the mixture A and the mixture B orderly into a reactor, stirring to react, and after 10-120 min of reaction with the reaction temperature of 60-80 DEG C, obtaining silicon tetrafluoride gas; and guiding the silicon tetrafluoride gas into a cooler by a honeycomb duct to be cooled and then enter a gasholder through a pipeline. The invention not only overcomes the high cost problem, but also achieves the reuse of reaction exhaust liquor and sizing agent, has no influence on environmental protection, and greatly reduces the energy consumption.

The test technique of the geomechanics model the important way to research large-scale and complex rock-soil project and model testing technique can realize the real project situation. But at present, the testing periodic of the test technique of the geomechanics model is long, and when changing a kind of parameter each time, we must remake a model test. The model can not be reused, the fee is high, the testing technique is complex, and the research cost is large. This invention raises the conception of physical finite element board material, by the continuous or discontinuous symmetric load mean, according to the field complex geological conditions, adopting different finite element board combination to simulate the condition. After the damaging test, collecting the undamaged definite element material for the next reuse, at the same time, because the size of the element material is too small, it can simulate all kinds of different rock mass. This overcomes the defects of the long testing period and high cost.

The invention discloses an implanted physiological data measurement device. In the device, a temperature measurement module measures a thermistor which is connected with a bridge bleeder circuit, and transmits a voltage signal to a signal processing module; a pulse measurement module senses external pressure and transmits an electric signal to the signal processing module; the signal processing module calculates a temperature value and a time value of pulse per minute, and transmits average values to a RFID (radio frequency identification) module after the average values are calculated; and the RFID module transmits data of the temperature value and the pulse rate to the outside of the body of an animal, and receives a data measurement command from the outside of the body of the animal so as to control dormancy and awakening of each module. According to the device, the temperature and pulse data of raised livestock can be acquired with low cost, the measurement error is reduced, and the service life is prolonged.

The invention discloses a correcting system and method of a sunlight reflecting device based on an artificial light source. The correcting system comprises a correcting vehicle capable of freely advancing, a laser emitting device installed on the correcting vehicle, a gesture locating system of the laser emitting device, a light-sensitive array receiving screen used for receiving rays reflected by the sunlight reflecting device, a gesture locating system of the light-sensitive array receiving screen, a laser emitting device supporting mechanism, a receiving screen supporting mechanism, a distance measuring and locating system and a data processing system. According to the invention, defects such as high cost, time spending, complexity in image processing, difficulty in searching light spots and the like of a sunlight combined solar light spot imaging correcting scheme are overcome, problems of high cost and searching of the correcting system such as a high-power tower-type artificial light source are solved, and the correction of the sunlight reflecting device is realized by using a method with low power, low cost and high precision.

The invention relates to a method for detecting micro stress of unidirectional C / SiC (continuous carbon fiber reinforced silicon carbide composites) in oxidation environment to solve the technical problem that the existing method for detecting the micro stress of the unidirectional C / SiC has poor stress analysis accuracy. The method has the following beneficial effects: the geometrical models of microstructures of the composites at different oxidation moments are obtained by applying an oxidation reaction kinetics equation to simulate microstructure oxidation processes; a microstructure finite element model after oxidation is built to calculate the finite element of the micro stress; the whole process from modeling to calculation is concise and efficient; the defects of high experiment method cost and long time are overcome; and with the help of the powerful post-processing function of ANSYS, the complex distribution of micro stress fields in the oxidized microstructures of the composites is accurately displayed, the stress analysis accuracy of the method for detecting the micro stress of the unidirectional C / SiC is improved, and the problems of low micro mechanics model accuracy and lack of accurate stress distribution description are solved.

The invention provides a method for preparing 4-tert-octylphenol. The C4 fraction addition mixture with 80 percent of isobutene dimer remained by esterification-degasification of sulfuric acid is taken as the raw material ; after the raw material is braized and cut under the temperature between 75 DEG C and 105 DEG C, the isobutene dimmer that the content of the target distillate is more than 98 percent is obtained to be taken as the alkylating agent; Na-type sulfonated styrol-butadiene polymer strong base anion-exchange resin with 50 percent of water is acidified to a H-type sulfonated styrol-butadiene polymer strong acid cation-exchange resin as the alkylation catalyst; the target distillate isobutene dimmer and the phenol are made a alkylation reaction under the temperature between 90 DEG C and 100 DEG C with the H-type sulfonated styrol-butadiene polymer strong acid cation-exchange resin as the catalyst to produce the 4-tert-octylphenol alkylation mixing liquid; the alkylation mixing liquid is braized and cut under the temperature between 220 DEG C and 270 DEG C to produce the 4-tert-octylphenol.

The invention relates to a river lateral undercurrent exchange measuring device and method. The measuring device comprises a simulation box and a shooting device and is characterized in that a sand layer is laid in the simulation box, a simulated riverway is dug in the upper surface of the sand layer, a water inlet pipe is connected to one end of the simulated riverway and communicated with a water source, a water outlet pipe is connected to the other end of the riverway, the shooting device is used for shooting the migration trajectory, along with water flow, of tracer agent dripped to a bank, and the bank is sand on two sides of the riverway. The river lateral undercurrent exchange measuring device is capable of continuously obtaining high-precision measuring data, cheap to manufacture,simple to operate and long in service life.

The invention provides a method for extracting essential oil in traditional Chinese medicinal materials. The method provided by the invention has the following beneficial effects: a novel green binaryand ternary deep eutectic solvent is adopted as an extracting agent, the problem that an organic reagent with higher toxicity is used as an extraction solvent in a traditional essential oil extraction technology is overcome, and pollution to the environment is reduced; a combination of the novel green solvent and a microwave-assisted steam distillation technology is used for the first time, the shortcomings of high costs, long extraction time, high labor intensity and the like existing in the traditional extraction technology are overcome, and compared with a method using a binary deep eutectic solvent, a method using a ternary deep eutectic solvent can obtain a higher yield of the essential oil; compared with extraction technologies of microwave steam distillation and ultrasound-assistedternary deep eutectic solvent steam distillation, the ternary deep eutectic solvent combined with microwave-assisted steam distillation extraction method can obtain a higher yield of the essential oil and volatile components; an extraction device is easy to clean to reduce residues of a sample and a solvent; and the method can be combined with the practice to provide a novel means for extractionof the plant essential oil.

The invention discloses a self-assembly three-dimensional copper Raman enhanced substrate, and a preparation method and application thereof, and belongs to the field of Raman spectrum analysis. The raw material used by the method is relatively cheap copper; the application cost of an SERS (Surface Enhanced Raman Scattering) substrate is greatly reduced. Carbon points are used for replacing ordinary organic molecules to prepare a copper self assembly structure; the obtained copper substrate does not need special protection; the special treatment is not needed; the direct use can be realized. The prepared self-assembly three-dimensional copper can be stored for a long time in the air. The prepared self-assembly three-dimensional copper has a great number of SERS active sites; the detection limit on probe molecules (4-ATP) is 10<-8> mol / L. The prepared self-assembly three-dimensional copper Raman enhanced substrate has rich hot spots and ultrahigh stability; in addition, in the use process, any pretreatment is not needed; inactivation cannot occur after the placement in the normal temperature air for several months; the large range application of the Raman substrate and the large-range application of the Raman analysis technology are facilitated.

The invention discloses a flue gas purifying method with recyclable alkali absorption liquid, which comprises the following steps of adding atomized ozone into flue gas, and converting nitrogen oxide (NOX) in the flue gas into soluble nitrogen dioxide (NO2); removing SO2, NOX and mercury in the flue gas by adopting alkali liquid as absorption liquid in an absorption tower to obtain absorption liquid; performing solid-liquid separation on the absorption liquid to obtain a mercury-containing precipitate; performing air oxidation and solid-liquid separation on the filtrate to obtain sodium sulfate and sodium nitrate; preparing alkali liquid by taking sodium sulfate as a sodium element; returning the alkali liquid as absorption liquid to a flue gas absorption system for recycling. Since the method realizes recycling of the alkali liquid at the time of desulfurization, denitrification and mercury removal, the problems of high cost by using a great quantity of alkali liquid in current flue gas purification and secondary pollution caused by waste liquid discharge are solved. The method disclosed by the invention has the advantages of simple process, small investment, low operation cost and high pollutant removal rate, the SO2 removal rate exceeds 95%, the NOX removal rate exceeds 80%, and the waste is fully used.

The invention relates to the field of agricultural planting and soil conditioners, in particular to a special saline alkali soil conditioner for facility agriculture. Agricultural wastes such as cotton straws are used as main components and carriers of the saline alkali soil conditioner, various natural phytoncides and insecticides are screened, and the compositions of the various natural phytoncides and insecticides are optimally matched, and finally the saline alkali soil conditioner consisting of cotton straws, garlic extract, Marigold extract, Sichuan Pepper extract, Cacumen biotae powder,kieselguhr and humic acid. The soil conditioner is low in cost, convenient to operate, safe to use, stable and long-acting, the structure of facility saline alkali soil can be improved obviously, thefertilizer is saved by 30% to 50%, and the cost is reduced by more than 80%; and moreover, a new path is provided for recycling the cotton straws, the natural resources are saved, the energy crisis is relieved, and the protection for ecological environment is also facilitated.

The invention provides a clinker-free high-performance low-cost novel composite cementing material. The composite cementing material is composed of the following components in percentage by mass: 10-25% of quick lime, 5-20% of desulfurized ash, 0-11% of a modified material and 50-95% of a composite admixture. The composite admixture is composed of iron tailing powder and superfine slag powder, wherein the iron tailing powder accounts for 20%-45% by mass of the total raw materials of the composite cementing material, and the superfine slag powder accounts for 30%-50% by mass of the total raw materials of the composite cementing material. The invention provides an appropriate mixing ratio, and the gelling activity of iron tailing sand is activated by using low-cost quicklime, low-cost desulfurized ash and a small amount of strong alkali and weak acid salt. The adopted raw materials are cheap industrial raw materials and industrial waste, and high-temperature roasting, grinding and otherprocedures are not needed for preparation, so engineering cost and the construction difficulty are remarkably reduced.

The invention provides a durable super-hydrophobic and super-oleophobic textile finishing agent. The durable super-hydrophobic and super-oleophobic textile finishing agent is prepared by mixing the following raw materials: a nano-scale silicon material, fluorine-containing polyether, isocyanate compounds, a catalyst and a solvent. Furthermore, the invention provides a finishing method of textiles by virtue of the durable super-hydrophobic and super-oleophobic textile finishing agent. According to the finishing method, a textile is sprayed or dip-coated with the durable super-hydrophobic and super-oleophobic textile finishing agent, and then the textile is pre-dried and roasted. The durable super-hydrophobic and super-oleophobic textile finishing agent disclosed by the invention is prepared from the readily available materials, is free from a chlorine-containing solvent, and has certain abrasive resistance and washing resistance as well as the super-hydrophobic and super-oleophobic properties. The durable super-hydrophobic and super-oleophobic textile finishing agent disclosed by the invention has significant application prospects in the fields of textile functional finishing and various textile products. The finishing method of textiles with the durable super-hydrophobic and super-oleophobic textile finishing agent is simple and easy to implement.

The invention discloses a luggage re-identification model training and luggage re-identification method, and the method comprises the following steps: S1, obtaining video monitoring data, and extracting a luggage image of the video monitoring data through a target detection model; S2, labeling the luggage image to obtain a luggage image data set; S3, dividing the luggage image data set into a training set and a verification set; S4, training a luggage re-identification model by using the training set, evaluating the luggage re-identification model by using the verification set, and screening out the luggage re-identification model with the optimal prediction performance; S5, obtaining similarity distribution between the luggage images by using the luggage re-identification model obtained in the step S4, and determining a discrimination threshold according to the similarity distribution; and S6, inputting any two luggage images into the luggage re-identification model to predict whetherthe two luggage images are from the same luggage or not. According to the invention, the defects of high cost and low security of a traditional luggage identification tracking scheme are overcome, the portability is strong, and the identification accuracy is high.

The invention discloses a second-generation sequencing library building method for identifying the bacterial types and drug-resistant types of helicobacter pylori in samples. The method includes the steps of designing and screening primers, wherein according to a to-be-measured target gene, the specific primers are designed; 2, synthesizing universal primer pairs; 3, synthesizing transitional primer pairs; 4, synthesizing library building primer pairs; 5, extracting a genome; 6, in a PCR amplification system, adding all specific primers pairs to conduct a first round of multiple amplification,and recycling and diluting a product to be used as a template of next-round multiple amplification; 7, in the PCR amplification system, adding the universal primer pairs and all the transitional primer pairs to conduct a second round of multiple amplification, and recycling and diluting a product to be used as a template of next-round multiple amplification; 8, in the PCR amplification system, adding the library building primer pairs to conduct a third round of library building amplification, and recycling a product to obtain a prepared library; 9, sequencing the NGS target gene; 10, conducting NGS analysis.

The invention discloses an analogue circuit of an automobile electric control engine. The analogue circuit comprises a storage battery, an ignition switch, a failure alarm indicating lamp, an ignition indicating lamp, an engine main relay, an oil injection indicating lamp, an oil pump work indicating lamp, an air flow sensor, an adjustable signal generator, a control switch of the adjustable signal generator, an engine control unit and a throttle valve position sensor. Through the analogue circuit of the automobile electric control engine disclosed by the invention, the shortcomings of high cost, large volume, low safety, poor environmental protection and the like of the prior art can be overcome; and thus the analogue circuit has the advantages of simple structure, low cost, small volume, high safety and good environmental protection, and is convenient to detect.

The invention relates to an expandable cubesat for a space material experiment. The expandable cubesat comprises a support frame, a support rod, a differential rotation driving mechanism, an optical imaging mechanism and a plurality of sample tray layers; a sample tray supporting table is connected to the support frame, the sample tray supporting table comprises a plurality of annular steps which are arranged in a stepped mode, the heights of the annular steps are reduced layer by layer from inside to outside, a sample tray layer is arranged on each annular step, each sample tray layer comprises a plurality of sample trays, and one end of each sample tray is hinged to the corresponding annular step; one end of the support rod is connected with the differential rotation driving mechanism, the optical imaging mechanism is installed on the supporting rod, and the sample trays of the sample tray layers are unfolded towards the periphery of the support rod through a locking and releasing mechanism; and the differential rotation driving mechanism is connected with the annular steps of the sample tray supporting table and drives the annular steps to drive the sample trays on the annular steps to rotate around the support rod. The cubesat platform is small in size, simple in structure, low in cost and short in development period.

The invention discloses a macromolecular amphiphilic polymer modified copper acetylene hydrochloride-based catalyst and preparation thereof. According to the catalyst, nitrogen and phosphorus doped and modified activated carbon is used as a carrier; different types of copper salts are used as main active components, one or more non-noble metal chlorides of groups IA, IIA, VIII, IB and IIB are usedas assistants, and polyethylene glycol, polyvinyl alcohol, polypropylene glycol, polyvinylpyrrolidone and other polymers of different molecular weights are used as the binder. The mercury-free multi-element non-noble metal catalyst provided by the invention shows good catalytic activity and vinyl chloride selectivity in acetylene hydrochlorination reaction, and has high stability. The catalyst has the advantages of simple preparation process, environmental protection, no pollution, high cost performance and the like. Requirements of industrial production are met.

The invention relates to passive optical network equipment which comprises an equipment box body. A box cover is arranged on the equipment box body. The passive optical network equipment is characterized in that an optical transceiver module connector device, a PON main chip arranged on a main circuit board, a clock control device, a storing device, an energy supply device, an internet access communication device and a laser driving limiting amplifier are distributed in the equipment box body. The storing device and the internet access communication device are respectively connected with the PON main chip through connector buses. The clock control device is connected with the PON main chip which is connected with the laser driving limiting amplifier through a connector bus. The optical transceiver module connector device is connected with the main circuit board. Accordingly, based on matching of the PON main chip and the clock control device, communication transmission effect is improved. The problems that in the prior art, cost is high, production is not easy, and reject ration is high are overcome, equipment cost can be effectively lowered, and production efficiency and finished product rate are improved.

The invention belongs to the technical field of radio frequency and relates to the improvement of a radar emission signal generation module. It includes a transmission signal generation circuit composed of a control circuit [1], a first modulator [3], an up-conversion circuit [4] and a second modulator [5], and is characterized in that: there is a clock distributor [7] ], the target distance time quantization circuit [8], the target speed time quantization circuit [9], the adder [10], the write address generation circuit [11] and the modulation pulse adjustment circuit [6] composed of dual-port RAM [12]. The present invention possesses the radar target simulator function on the basis of generating the radar emission signal, completely integrates the radar target simulator inside the radar, can realize the complete radar target simulation function, and overcomes the traditional target simulator with high cost and large volume. The disadvantages of being large and inconvenient to carry.

The invention discloses a single bus communication-based grain moisture measurement chip. The chip is arranged in outer measurement tubes, the outer measurement tubes comprise a first outer measurement tube and a second outer measurement tube, a cable electrically connected with the chip penetrates through the first outer measurement tube and the second outer measurement tube in sequence, the first outer measurement tube is used as an anode, the second outer measurement tube is used as a cathode, the chip comprises a core data processing unit, a power management unit, a moisture sensor core, atemperature sensor core and an EEPROM storage unit, and the core digital processing unit is respectively connected with a first register, a second register, a moisture sensor processing unit, a 64-bit chip ID, signal anti-interference and ESD. The single bus communication-based grain moisture measurement chip can measure moisture of multiple points in a bin accurately, further, the chip is smalland low-cost, integrates temperature and moisture and calibration functions, and is suitable for large-area use.

The invention provides a self-service shopping method based on static two-dimensional code electronic payment. A consumer needs to wait for a sound and light confirmation reminder sent by a vending machine before the consumer pays so that the consumer can be prevented from paying without obtaining goods. Even if the consumer ignores the sound and light reminder of the vending machine, after the consumer clicks to confirm the payment, the information first passes through a front-end processing page of a cloud service platform, the cloud service platform communicates with the vending machine, the front-end page can decide whether to pass the payment request of the consumer based on whether the specific vending machine works normally, if the vending machine is working normally, the front-endprocessing page can send the payment information to a third-party electronic payment platform, otherwise, the consumer can be prohibited from selecting the goods and paying directly through a mobile phone of the consumer. The self-service shopping method can improve the security of the static two-dimensional code payment and the reliability of shopping, and at the same time overcomes the defects that a dynamic two-dimensional code is high in cost and susceptible to light, and the consumer shopping experience is poor.

The invention discloses an ultra-clean vacuum sealing method for an optical lens. An installation device and the optical lens are sealed and fixed through a flexible metal sealing ring. The ultra-clean vacuum sealing method for the optical lens can solve the vacuum pollution problem caused by sealing through a traditional sealing ring and the problem of high cost of sealing through a metal flange, and replacement of the lens is simple and easy.

The invention relates to the field of large generator bar performance simulation analysis, in particular to a multi-factor optimization design method for a motor bar surface electric field. Accordingto the method, a neural network and a genetic algorithm are combined, and design key points of the motor bar can be optimized in a targeted manner according to performance requirements, for example, the conductivity and the length of each section of material of the anti-corona layer of the bar are optimized according to requirements of the bar on electric field homogenization capacity. According to the method, the problems that in the motor bar design process, the motor bar performance influence factors are excessive, and the optimal design scheme is not easy to obtain are solved, the multi-factor optimization capacity is achieved, and the capacity of improving the motor bar design quality is achieved.

The invention discloses a method for inhibiting scale on the surface of a blunt metal material. The method comprises the following steps that firstly, a sample is subjected to surface oil removal treatment; secondly, ultrasonic surface rolling machining is conducted; and finally, rolling surface protection is implemented, so that the surface of the blunt metal material is kept in the machining state for service use. The method has the advantages of favorable scale inhibition effect, lower cost and simple preparation, and can well overcome the defects of high cost, complexity, severe partial pollution and the like in the traditional scaling method.

The invention discloses a method for treating heavy metal copper ions in industrial sewage by a combined adsorbent. The combined adsorbent is a pectin / Fe3O4 combined magnetic material. The method hasthe advantages that the adsorbent provided is economical and environmentally friendly and has good adsorption and removal effect on the copper ions, and the removal rate for 1.2mg / mL of metal copper ion sewage can reach more than 91.67%, so that the method can be widely applied to adsorption treatment of the copper ions in the high-concentration sewage, the defects in the prior art, such as high cost and low adsorption removal efficiency, are overcome, and the method has high social and economic benefits. The adsorption treatment method for the copper-ion-containing sewage includes the steps of (1) pretreatment of an adsorption carrier, (2) preparation of a magnetic separation agent, (3) selection of the feeding amount of the adsorption carrier, (4) selection of the feeding amount of the separation agent, (5) selection of the adsorption time and(6) selection of the adsorption frequency.