362results about How to "Embody practicality" patented technology

The invention provides an intelligent comprehensive monitoring and security integrated management system for a parking garage. The system solves the comprehensive intelligent management problems of related automatic monitoring, automatic detection, display, different languages and voices, communication, dispatching, guide, digital quantity identification, security, forbidding and passing, charging, statistics, self diagnosis and maintenance and the like of various self-propelled and automatic three-dimensional mechanical parking garages. The system has significant meanings for improving the monitoring, security and management levels of various parking garages, promoting static traffic modernization construction and increasing the social and economic benefits of the parking garages.

The invention relates to a direct torque control system of a permanent-magnet synchronous motor. According to the control system, an extended kalman filter (EKF) observer is adopted for stator magnetic linkage and rotation speed estimation, according to a mathematical model of the permanent-magnet synchronous motor, the state variable x of the system equals to [Psi alpha, Psi beta, Omega gamma, Theta gamma] T, the input variable mu equals to [mu alpha, mu beta] T, the output variable y equals to [Iota alpha, Iota beta ] T, and state equations and output equations (11) of the system are obtained. The motor rotating speed is used as the input of an automatic data rate changer (ADRC) speed controller, the measurement value Te of the electromagnetic torque is calculated through the obtained stator magnetic linkage, in addition, the measurement value Te and electromagnetic torque given signals are compared, comparison results are used as the input of a space voltage vector pulse generator, and the output of the space voltage vector pulse generator is connected with a voltage source inverter of the permanent-magnet synchronous motor. The direct torque control system has the advantages of good dynamic performance, better stability performance, high robustness and high anti-interference capability.

The invention discloses a robot scene self-adaptive pose estimation method based on RGB-D camera. scene two-dimensional color image information of adjacent frames and space depth information corresponding to pixels of the two-dimensional color image are acquired based on a RGB-D camera; when the two-dimensional color image feature points are sufficient, ORB operators are adopted to extract features, the matching strategy provided by the invention is adopted to carry out accurate matching, and three-dimensional pose estimation is solved based on the pose estimation algorithm of the matching feature points; when the feature points are insufficient, the improved ICP algorithm provided by the invention is adopted to solve the three-dimensional pose estimation; then, a complete switching criterion is designed to fuse the two pose estimation methods; finally, pose estimation obtained through the two methods is optimized through a light beam adjustment algorithm, and finally smooth and accurate three-dimensional pose estimation is obtained. The three-dimensional pose estimation algorithm has the outstanding advantages of high robustness, high precision, small calculation amount, adaptability to different scenes and the like.

The invention requests for the protection of a grid heterogeneous data integrating method based on SOA, which relates to a software system technology. On the basis of service-oriented basic thought, a heterogeneous data integrating framework and a method which are based on grid service are provided. The method can transparently access heterogeneous data and enable each layer of the heterogeneous data integrating framework to have low coupling performance. The heterogeneous data integrating framework is combined with the MVC flow chart of struts to develop an information management system (IMS) which can not only ensure the flexible and dynamic change of data sources but also enable users to obtain a response in time. The grid heterogeneous data integrating method based on SOA can meet the requirements of the prior information management system, needs lower hardware cost, and can query mass heterogeneous data. The round-trip time, the CPU occupancy, and the like needed by the grid heterogeneous data integrating method for accessing a database are superior to those of the prior data integrating method.

The invention relates to a method of detecting stability of a rock mass side slope and warning and forecasting instability of the side slope by adopting motive power increment displacement response ratio parameters. A motive power monitoring and warning method of rock mass landslide includes the following steps: (1) ensuring side slope geometric elements to be detected, mapping of a sliding surface and self weight of a landslide body, (2) designing and arranging side slope downward sliding motive power and displacement monitoring points, (3) monitoring and ensuring the side slope downward sliding motive power and downward sliding displacement response, (4) ensuring side slope downward sliding motive power loading rate parameters, (5) ensuring side slope downward sliding displacement response rate parameters, (6) ensuring landslide motive power increment displacement response rate parameters, (7) ensuring a landslide stability motive power increment displacement response rate criterion, and (8) monitoring side slope stability and monitoring and early warning. Stability coefficients of a limit equilibrium method are organically coupled with a displacement timing sequence analytic method and characteristics of displacement predictive parameters, and limitations of a traditional method are overcome.

The invention discloses a temperature influence-considering optimal power flow algorithm of a power system. As the traditional optimal power flow is processed by taking power system network parameters as constants and the influence of the electric heating coupling relation of the actual power grid line is neglected, the calculation result of the traditional optimal power flow has great deviation to the scheduling operation result of the actual power grid. On the basis, the temperature influence-considering optimal power flow algorithm of the power system is characterized in that a temperature influence-considering optimal power flow model of the power system is established according to the electric heating coupling relation between line temperatures and line resistance. Besides, the problem of the temperature influence-considering optimal power flow algorithm of the power system is solved by use of a simplifying primal-dual interior point method, and generalized inequality constraints containing only upper limit constraints are formed by simplifying the inequality constraints in the optimization model, and the writing of a program can be greatly simplified. Finally, the simulation and analysis results of a plurality of examples indicate that the model and the algorithm are higher than the traditional optimal power flow in calculation accuracy and calculation efficiency and have significance to the scheduling operation of the power system.

The invention discloses a meal delivery robot applied to an intelligent cafeteria and the intelligent cafeteria. The meal delivery robot comprises a robot body, a control device arranged on the robot body, a loading device, an obstacle detection device and a voice reminding device. The loading device, the obstacle detection device and the voice reminding device are arranged on the robot body and are in electric connection with the control device. The intelligent cafeteria comprises a meal preparation area, a dining area, a delivery area, the meal delivery robot located in the delivery area, an ordering system used for ordering, a meal preparation system used for meal preparation, a drive mechanism arranged in the delivery area and connected with the meal delivery robot, and a recovery system used for recovering tableware. According to the meal delivery robot applied to the intelligent cafeteria and the intelligent cafeteria, employed cafeteria waiters are reduced, labor cost is lowered, collisions occurring during dining can also be avoided, then the light-hearted dining mood of diners is improved, and the favor degree of the diners to the cafeteria is increased. Meanwhile, the meal delivery robot replaces staff for meal delivery, and then operating cost of the cafeteria can be reduced furthest.

A position sensorless control method of permanent magnet synchronous motor with forward and reverse speed regulation is disclosed. includes I/F start-up strategy, switching control strategy, positionestimation strategy and deceleration and inversion strategy. Firstly, the motor current is closed-loop preset to zero, then I/F semi-closed-loop start-up is carried out, and when the motor runs to a certain speed, the motor can be switched to sensorless closed-loop control quickly and smoothly. When receiving the inversion command, decelerate, decelerate to a certain speed and then switch to I/F semi-closed loop control. After continuing to decelerate to zero speed and accelerating to a certain speed in the opposite direction, switch to the closed loop inversion process smoothly without position sensor. During I/F operation, the position signal is obtained by integrating the given velocity. When the speed reaches a certain value, the rotor position of the motor can be estimated accuratelyby the Romberg state observer, and then it is switched to the closed-loop control without position sensor. The invention can realize full-range sensorless control of a permanent magnet synchronous motor rotating in both positive and negative directions.

The invention discloses a method for preparing an acrylate printing adhesive, which is prepared by the following steps: (1) weighing a common monomer, a special monomer, an emulsifier, an initiator and deionized water in a mixing ratio; (2) mixing 40 to 60 percent of deionized water weighed in the mixing ratio, 40 to 60 percent of emulsifier weighed in the mixing ratio and 40 to 60 percent of initiator weighed in the mixing ratio to prepare liquid I; (3) mixing the common monomer and the special monomer, which are weighed in the mixing ratio, with 60 to 40 percent of deionized water, 60 to 40 percent of emulsifier and 60 to 40 percent of initiator, stirring and emulsifying to prepared liquid II; (4) dripping the liquid II into the liquid I; (5) after the liquid II is dripped, stirring, keeping temperature for reaction and obtaining an initial product of the acrylate printing adhesive; and (6) dripping ammonia water into the initial product of the acrylate printing adhesive to regulating the pH value of the initial product of the acrylate printing adhesive to 6.5 to 7.5, and filtering to obtain the acrylate printing adhesive product. The adhesive prepared by the method has high performance, and the environmental-protection problem in the synthesis and use processes of the adhesive is solved.

The invention relates to an electronic storage medium data wiping device and a data wiping method and discloses a portable electronic storage medium data wiping device and a data wiping method based on the same for solving the problems of the existing data wiping device that fewer functions are provided, the destroying speed is low, the portable degree is low and the wiping result is uncertain. The data wiping device provided by the invention comprises a power-on key, an equipment interface, a liquid crystal display, a starting key, a mode select key, an up/down selection key, a reporting browse key, a power input interface, a battery and a data wiping control module. The data wiping method comprises the following specific processes of: recognizing information of an equipment disk; displaying that the interfaces are in a stage of waiting for execution; detecting whether the disk has an HPA(high-power amplifier) hiding fan-shaped region and a DCO (data control office) hiding fan-shaped region; if so, removing the HPA and the DCO; if not, neglecting the fan-shaped regions; and selecting a wiping mode: rapid wiping or user-defined wiping; formatting the disk, and generating an wiping recording report. The data wiping device and the data wiping method provided by the invention are used for wiping data of different media.

The invention discloses a measuring method of a double slip surface rock mass slope anchorage optimization parameter. The method comprises the steps of firstly determining spatial geometric elements and physical and mechanical properties of a slope through scene investigation, adopting a stereographic projection method to determine the unstable rock mass structure slope and a normal inclined angle between an anchor rod and a structural surface intersecting line of the slope, obtaining the IO inclined angle between the slope optimal anchor rod and the structural surface intersecting line by conducting derivation on a slope stability coefficient, and correspondingly determining optimal anchorage force and an anchorage force correction coefficient on the condition of common construction. According to the measuring method of the double slip surface rock mass slope anchorage optimization parameter, on the basis of stereographic polar projection, a limit equilibrium method is adopted to analyze a slip law of a wedge-shaped body, and an anchor bolt support method applicable for the wedge-shaped double slip surface rock mass slope is explored; thereby, the stability of the rock mass slope under the influence of various slip tendencies is strengthened, and the effectiveness and practicability of the method are shown.

The invention discloses an improved three-dimensional point cloud registration method and a system based on two-dimensional image guidance, and a readable storage medium. According to the method, a point-to-surface distance is used as the measurement of a target function; a nearest neighbor point is searched by using a FLANN nearest neighbor algorithm searching method; a depth image filtering method based on color image guidance and a PCA-based method are successively used to carry out downsampling. According to the method, the depth point accuracy is improved, meanwhile, the calculation amount of the subsequent iteration process is reduced, rapid three-dimensional point cloud registration can be achieved, the method has the advantages of being high in robustness, small in calculation amount and the like, and the urgent requirements for three-dimensional point cloud registration in the application fields of robot self-positioning, map creation and the like are effectively met.

The present invention discloses a method for enriching efficient biphenyl degradation flora by using an accelerator SRpf, wherein the accelerator SRpf is added to an enrichment culture process of biphenyl degradation bacterial, continuous acclimation is performed to obtain an enrichment liquid with an efficient biphenyl degradation performance, and bacterial growth, flora diversity and a biphenyl degradation rate can be significantly increased with addition of the accelerator SRpf, wherein specifically bacterial growth is increased by 30-50%, a biphenyl degradation rate is increased by 20-70%, and a Shannon's diversity index is increased to 2.10-2.34 from 1.56-1.70. The accelerator SRpf has functions of VBNC flora recovery and bacterial growth promotion, such that the accelerator SRpf can be provided for enriching efficient biphenyl degradation flora and promoting growth of other organic pollutant degradation flora so as to provide a safe, cheap and efficient method for exploration of potential degradation flora in PCB, PAH and other pollution environments.

The invention provides a method for industrially producing anhydrous lithium hydroxide balls, comprising the steps of dehydration drying, fine powder, ball forming of powder, sieving, drying, and thelike. Medicine grains, which do not cause powder falling and do not have irritating smell, are prepared from anhydrous lithium hydroxide by a powder forming process. When the anhydrous lithium hydroxide balls are applied to a CO2 absorbent, the absorption efficiency of carbon dioxide by the absorbent is tested to be 85% or more according to a coal standard MT454-2008.

The present invention relates to one kind of somatostation aqua preparation and its preparation process and application in preparing medicine for preventing and treating serious acute esophagus varicose hemorrhage, acute gastric and duodenal ulcer hemorrhage, acute erosive gastritis, acute hemorrhagic gastritis, etc. The preparation consists of somatostation in 0.1-1000 mg each 0.1-500 ml, medicinal supplementary material, which may be mannitol, polyglycol, cyclodextrin, etc., and water. The preparation process includes compounding, sterilizing, packing, and other steps. The somatostation aqua preparation has high stability, easy preparation and other features, and has wide application foreground in preparing medicine for preventing and treating serious acute esophagus varicose hemorrhage, acute gastric and duodenal ulcer hemorrhage, acute erosive gastritis, acute hemorrhagic gastritis, etc.

The invention discloses a clean production method of nitrochlorobenzene. The production method concretely comprises the following steps: enabling chlorobenzene to react with nitric acid under the action of sulfuric acid to generate a nitrochlorobenzene mixture, separating the nitrochlorobenzene mixture from waste sulfuric acid, which is generated via nitration, by using a sedimentation method, neutralizing and washing an acidic nitrochlorobenzene mixture so as to enable the mixture to reach neutrality, drying a neutral nitrochlorobenzene mixture to remove the chlorobenzene, moisture and the like therein to obtain a crude nitrochlorobenzene mixture, then separating out two products, i.e., p-nitrchlorobenzene and o-nitrophenol, as well as meta-position oil rich in m-nitrochlorobenzene and high boiling point organic matter waste liquid by using a separation method in which crystallization, rectification and recrystallization are combined, in the clean production method of the nitrochlorobenzene, nitrating waste acid is subjected to vacuum concentration dehydration, after the sulfuric acid concentration is greater than 88%, the nitrating waste acid and nitric acid are prepared into mixed acid for cycle use, and the clean production method of the nitrochlorobenzene improves the economic benefit, optimizes the clean production method and process design of the nitrochlorobenzene, and meets the requirement of the clean production method and the process design on the nitrochlorobenzene.

The invention discloses an intelligent cafeteria which comprises a meal preparation area, a meal taking area, a delivering area penetrating through the meal preparation area and the meal taking area, a meal ordering system for ordering a meal, a meal preparation system arranged in the meal preparation area and connected with the meal ordering system in a network mode, a meal delivering system arranged on the delivering area and connected with the meal preparation system in a network mode and a recycling system used for recycling tableware. According to the intelligent cafeteria, automatic meal delivering is achieved through the meal delivering system, when a diner finishes the meal, the diner can put the tableware onto the tableware recycling system in a self service mode, and then the tableware recycling system recycles the tableware to the meal preparation area, so that hiring of cafeteria waiters is reduced, labor cost is reduced, collision during meal taking can be further effectively avoided, thus the relaxed and happy meal taking mood of the diner is improved, and preference of the diner to the cafeteria is added.

A sunlight greenhouse structure mainly comprises a rear wall and a structural framework arranged on the rear wall, wherein the front part and the rear part of the framework are provided with a front heat insulating cover and a rear heat insulating cover respectively. An inner heat insulating screen is further arranged in the greenhouse and comprises an inner top heat insulating screen and an inner front heat insulating screen, the inner top heat insulating screen is arranged on the upper part inside the greenhouse, and the inner front heat insulating screen is arranged at the front inside the greenhouse, wherein the rear wall adopts a double-layer brick body structure, plain soil is filled in the double-layer brick body structure, and a layer of polystyrene board is attached to the wall of the inner layer brick body. An inner container type heat insulating system is designed based on the traditional greenhouse structure; the sunlight greenhouse structure integrates the advantages of the traditional sunlight greenhouse such as energy conservation, heat insulation, low operating and construction costs and the like; moreover, by taking geographical environment, weather conditions, especially factors of projection distance of sunlight incidence angle, land utilization rate, reduced labor intensity of operators and the like into full consideration, and combining actual planting requirements of users for sunlight greenhouses, the sunlight greenhouse structure is economic, practical and attractive.

The invention discloses a water quality comprehensive simulation test system with replacement pipe sections for a circulating pipe network. The system comprises a water supply subsystem and independent circulating pipe network subsystems. The water supply subsystem includes a first water supply tank and a second water supply tank communicated with the first water supply tank through a pipeline with a second valve. Each independent circulating pipe network subsystem includes a main circulating pump, a multichannel flow switch calibration device, a visible pipe section and a loop of a high water supplement and exhaust tank that are connected in series by a pipeline. The loop is in connection with a first pipeline branch for realizing closed circulation, a water supplement system, a blowdownbranch, a water quality on-line monitoring system, a temperature control system and replacement pipe section branches. Meanwhile, the pipeline of the independent circulating pipe network subsystem isalso connected to a reagent filling system. Making use of the interaction among all parts, the water quality comprehensive simulation test system for a circulating pipe network has the advantages of high simulation degree and ability to simulate the working conditions of a plurality of municipal water supply pipe networks.

The invention belongs to the field of functional knitted product production, and relates to a production technology of PTT (Polytrimethylene Terephthalate) fiber knitted seamless underwear with a high wicking function. The production technology comprises the steps that a PTT fiber with the crossed cross section and a bamboo carbon polyester fiber are taken as raw materials; two rough yarns and a double rough yarn feeding technology are adopted to manufacture a blended yarn; the blended yarn is knitted by a seamless knitting machine to form seamless knitted underwear grey cloth; and the seamless knitted underwear grey cloth is subjected to scouring and bleaching pretreatment, then dyeing treatment, and dehydration, drying, afterfinish and shaping treatment to from a PTT fiber seamless knitted underwear product with the high wicking function. The PTT fiber seamless knitted underwear with the high wicking function has the significant characteristics of moisture absorption, wicking, easiness in curing, bacteriostasis and the like; particularly, a wicking speed, the fastness to washing, the dimensional stability and the like of the product reach design requirements very well; and the design rationality of the product, the practicability of the product, the scientific rationality of the production technology and the significance of economic and social benefits are reflected.

The invention discloses an unmanned tobacco selling method based on the Internet of Things and trusted identity authentication. The method comprises: when a purchaser needs to purchase tobacco, performing real-name authentication firstly, scanning the identity card of the purchaser, the face acquisition camera acquiring the face portrait of the purchaser and comparing the information on the identity card with the credible identity authentication system of the cloud platform, and if matching is passed, extracting the date and other information on the identity card; the system login module automatically judging whether the tobacco is an adult or not, and after the tobacco is confirmed to be an adult, the purchaser selecting the corresponding tobacco on the touch display screen and paying thetobacco through Unionpay, WeChat or Alipay; and if it is judged that the person is a juvenile, the system returning or terminating the purchase program.