55results about How to "Reduced labor requirements" patented technology

The embodiment of the invention discloses a logic expression determination method, device and equipment and a medium, and relates to the technical field of intelligent questions and answers. The method comprises the following steps of carrying out semantic analysis on an obtained question; according to a semantic analysis result and a preset semantic logic relationship between words, determining atarget framework for describing the overall semantic logic relationship of the question; and determining a target logic expression of the question according to the target framework and the universalrepresentation form of each resource in the knowledge base, so as to execute the target logic expression to determine the answer of the question from each resource included in the knowledge base. Theembodiment of the invention provides the logic expression determination method, device and equipment and a medium, and aims to determine a logic expression of a question without manually writing the logic expression.

The embodiment of the invention discloses an intelligent management system of a parking lot, the parking lot and a parking method and device. The intelligent management system comprises a first videoacquisition device, a server, a guide screen and a display device, wherein the parking lot can obtain related information of a vehicle based on a video, quickly and accurately recommend an appropriateparking space for a user, and directly indicate a path for the vehicle to drive into the parking space through a guide screen near the vehicle, so a reliable data basis is provided for quick parkingof the user; moreover, the intelligent management system can also dynamically generate the dynamic electronic identifier of the vehicle in the parking lot, and provides a reliable certificate for theuser to confirm the parking space, intelligently find the vehicle, intelligently pay the fee and the like. Thus, the requirement of the parking lot for manpower can be reduced, the cost is saved, theparking speed of the user is high, parking payment is not needed, the requirement of people for parking in fast-paced life is met, and the parking experience brought to the user by the parking lot isimproved.

A process for making integral elastic supports, such as chair seats, seat backs, arm rests, bicycle saddles and vehicle seats and the like, including the following steps: a) making a shell (2) with a predetermined shape and structure; b) setting up a mold (5) with at least one inner cavity (6) and capable of being moved from an open condition to a closed condition; c) introducing at least one foamable resin and the shell (2) into the inner cavity (6) of the mold (5); d) foaming the resin to form a filler layer (3) to be joined to the shell (2) into a single assembly (7); e) removing the assembly (7) from the mold (5). In greater detail, the shell (2) is manufactured in a first step a1) for making a main body (8) having a peripheral edge (9) and a second step a2) for making a sealing member (10) in the proximity of the peripheral edge (9), to essentially close any gap between the shell (2) and the inner cavity (6) in the proximity of the peripheral edge (9) and prevent the formation of burrs as the foamable resin is foamed.

The present invention relates to an automatic pricing method. The method comprises: 101) acquiring a picture of a priced commodity; 102) extracting an image of the priced commodity from the picture by image division; 103) extracting image features from the image of the commodity, and the image features are the contour, the color, the texture or a combination thereof; 104) identifying the priced commodity by fuzzy matching; and 105) calculating a price according to an identification result or obtaining the calculation price by searching a unit price reference and combining the weight of the priced commodity. The automatic pricing method applies an intelligent image identification technology, thus greatly reducing labour requirements and labour, and improving the pricing correction rate and the pricing efficiency.

The invention discloses an agricultural machine for producing edible powder. The agricultural machine sequentially comprises a corn cob processing device, a corn grain crushing device, a powder mixingdevice and a powder operation device according to a process flow. The corn cob processing device comprises a feeding unit and a processing unit. The powder mixing device comprises a material mixing tank body and a material mixing upper cover which covers the material mixing tank body. A first material mixing and sieving plate, a first mixing chamber, a second material mixing and sieving plate, and a crushing / mixing integrated chamber are sequentially arranged in the cavity of the mixing tank body from top to bottom. The powder operation device comprises an operation conveying belt, a turnoverdischarging device, an operation baffle, a conveying hopper, an operation elastic device and an operation lifting base table. The agricultural machine provided by the invention has the advantages that the processing efficiency of corn cobs is improved, the quality of the produced corn flour is ensured, the mixing effect of the corn flour and the flour is good, the corn flour and the flour do notcake easily, blocking does not occur easily, the working continuity is strong, the feeding amount of a single time is accurate, and the working efficiency is high.

The invention relates to a preparation method of ethyl 4-chloro-3-hydroxybutanoate.In a reaction kettle, ethyl acetate is added to purified water, so as to be used as a solvent, hydrophosphate is used as a solution pH buffering agent, ethyl 4-chloroacetoacetate is used as a reaction substrate, the reaction time is 6 to 10 h, the reaction temperature is 28 to 33 DEG C, and after reaction, the steps of filtration, extraction and concentration under reduced pressure are performed, so as to obtain a crude product of the ethyl 4-chloro-3-hydroxybutanoate; wherein biocatalysts include keto reductase, glucose dehydrogenase and NADPH (Nicotinamide Adenine Dinucleotide Phosphate), and a hydrogen donor is glucose; the molar concentration of the hydrophosphate is 0.04 mol / L to 0.08 mol / L, the mass-to-volume ratio concentration of the substrate of the ethyl 4-chloroacetoacetate is 8 g / mL to 15 g / mL, the used mass of the keto reductase and the glucose dehydrogenase is 3% to 8% of that of the ethyl 4-chloroacetoacetate, wherein the use ratio of the keto reductase to the glucose dehydrogenase is 2:3, and the mass of the NADPH is 0.1% to 0.3% of that of the ethyl 4-chloroacetoacetate. According to the preparation method, the operation steps and the reaction steps are simplified, and the yield of the ethyl 4-chloro-3-hydroxybutanoate can be increased.

The invention relates to an automatic pinching rack which comprises a charging mechanism, a connecting mechanism, a feeding mechanism and a collecting mechanism, wherein the charging mechanism comprises a charging frame, a charging belt arranged on the charging frame, and a first winding machine matched with the charging belt; the connecting mechanism is connected with the charging frame; connecting parts of the connecting mechanism are mutually matched; a movable baffle is movably arranged on the connecting mechanism; the collecting mechanism comprises a collecting frame, a collecting belt arranged on the collecting frame, and a second winding machine matched with the collecting belt; and the feeding mechanism is matched with the connecting mechanism, and connected with the collecting frame. The automatic pinching rack is suitable for production of cold-rolled seamless steel pipes.

The invention belongs to the technical field of optical fiber manufacturing, and discloses a method for manufacturing a polarization-maintaining optical fiber, comprising the following steps: on the wall of the first layer of casing, cutting a notch symmetrically with respect to the center line of the inner cavity of the first layer of casing; Stress rods are filled in the incision, and an optical fiber preform core rod is embedded in the first layer of casing; a second layer of casing is nested outside the first layer of casing to form a polarization-maintaining optical fiber preform; The polarized optical fiber preform is drawn into a polarization-maintaining optical fiber; wherein, the structure of the gap is filled by a stress rod. During the high-temperature drawing process, the circular stress rod will greatly fill the gap in the cut after softening, forming a polarization-maintaining optical fiber. required stress zone. The invention proposes a polarization-maintaining optical fiber manufacturing method with double sleeves and stress rods, which has a simple structure, greatly simplifies the processing technology and reduces the requirements for labor and equipment; it can greatly improve the impact of impurities on product quality; at the same time, it avoids Various high-precision operation requirements in the prior art.

The invention relates to the field of book management and discloses a school library book automatic identifying and sorting device. The school library book automatic identifying and sorting device comprises a conveying table. A recognition table is fixedly connected to the left side of the conveying table. Stacking tables and sorting tables are arranged on the upper and lower sides of the conveying table correspondingly. The upper portion of the recognition table is fixedly connected with supporting rods. The tops of the supporting rods are fixedly connected with an inclined plate. The right side of the inclined plate is connected with a rotary seat. The rotary seat is fixedly connected with a baffle. The lower portion of the baffle is hinged to a first cylinder piston rod. The inclined plate is fixedly connected with a probe stand column. The probe stand column is fixedly connected with a recognition probe. The school library book automatic identifying and sorting device can be used for classifying returned library books, can automatically judge the type of the books under the combined action of sensors and cylinders and place the different types of books onto the different stacking tables, greatly reduces manual operation and is higher in efficiency, more accurate in sorting and suitable for application and popularization in various large libraries.

The invention discloses a method for synthesizing (3R,5S)-6-chloro-3,5-dihydroxyhexanoate, wherein the method comprises the following steps: preparing 4-chloro-3-hydroxybutyrate; preparing tert-butyl (S)-6-chloro-5-hydroxy-3-oxo-hexanoate from the 4-chloro-3-hydroxybutyrate; adding proper amount of pure water to a reaction kettle as a solvent and adding hydrophosphate to prepare a pH buffer solution which is 0.05mol / L-0.15mol / L in molar concentration, so as to generate a (3R,5S)-6-chloro-3,5-dihydroxyhexanoate solution with the presence of a biological catalyst and a hydrogen donor, and reacting at 45-55 DEG C for 10-15h; and after reaction, sequentially filtering, extracting, decompressing and concentrating, and rectifying so as to obtain a finished (3R,5S)-6-chloro-3,5-dihydroxyhexanoate product; the mass-volume concentration of the (3R,5S)-6-chloro-3,5-dihydroxyhexanoate is 8g / mL-17g / mL, and the dosage of carboxyl reductase is 4-6% of the (3R,5S)-6-chloro-3,5-dihydroxyhexanoate. The method disclosed by the invention not only is capable of reducing production cost and is conducive to energy conservation and emission reduction, but also is higher in molar yield from a production reaction process.

The invention relates to a method for separating platinum, palladium, rhodium and iridium from a solution, which comprises the following steps: adding a strong oxidant, and then adding a saturated ammonium chloride solution, so that platinum, palladium, rhodium and iridium form chloroplatinic acid amine, chloropalladic acid amine, chlororhodic acid amine and chloroiridic acid amine precipitates; adding ammonia water for slurrying, heating and stirring, and enabling palladium salt to enter the solution; the filtrate is palladium liquid, and the filter residues are ammonium chloroplatinate, ammonium chlororhodate and ammonium chloroiridate. And refining the palladium liquid to recover palladium. The method comprises the following steps: adding water into ammonium chloroplatinate, ammonium chlororhodate and ammonium chloroiridate salt slag, slurrying, heating, adding hydrazine hydrate, reducing platinum and rhodium into simple substances, reducing tetravalent iridium salt into trivalent iridium salt, adjusting the acidity of the solution, transferring the iridium salt into the solution, and refining the iridium liquid to recover iridium. The filter residues are platinum and rhodium powder, drying, dissolving with hydrochloric acid and hydrogen peroxide, transferring platinum into a solution, filtering, and transferring platinum liquid into refining; the filter residue is crude rhodium, and refining to obtain rhodium powder. The invention provides a method for separating complex precious metal materials, and solves the problems of incomplete separation, large amount of wastewater and waste liquid in separation, complicated process, high cost and the like.

The invention discloses an automatic unpacking system of an electric energy meter. The automatic unpacking system comprises a control system, and further comprises an automatic unpacking unit, an electric energy meter sorting unit, a carton recycling and processing unit, an automatic high-voltage insulation testing unit, an appearance and foreign matter detecting unit, an automatic packing unit and an unstacking / stacking storage inlet unit, all of which are connected with the control system and arranged on a conveyor line. According to the system, the full-automatic electric energy meter is adopted, unpacking, sorting, high-voltage insulation testing, appearance and foreign matter detecting, packing, stacking and unstacking are carried out automatically, intelligent control from unpacking to stacking storage inlet of the electric energy meter is achieved, the labor cost is reduced, the labor intensity in the existing electric energy meter unpacking process is reduced, and the problems that the unpacking working efficiency is low and the electric energy meter is damaged in the unpacking process are solved. The automatic high-voltage insulation testing device and the automatic appearance and foreign matter detecting device are adopted in the whole process, the inspection result is unified, nonuniformity of result targets caused by subjective factors of people in the manual checking process is avoided, and the detecting quality of the electric energy meter is improved.