48results about How to "Reasonable method design" patented technology

The present invention provides a deep and reinforcement learning-based real-time online path planning method. According to the method, the high-level semantic information of an image is obtained through using a deep learning method, the path planning of the end-to-end real-time scenes of an environment can be completed through using a reinforcement learning method. In a training process, image information collected in the environment is brought into a scene analysis network as a current state, so that an analytical result can be obtained; the analytical result is inputted into a designed deep cyclic neural network; and the decision-making action of each step of an intelligent body in a specific scene can be obtained through training, so that an optimal complete path can be obtained. In an actual application process, image information collected by a camera is inputted into a trained deep and reinforcement learning network, so that the direction information of the walking of the intelligent body can be obtained. With the method of the invention, obtained image information can be utilized to the greatest extent under a premise that the robustness of the method is ensured and the method slightly depends on the environment, and real-time scene walking information path planning can be realized.

The invention discloses a wavelet difference algorithm-based cable fault localization method. The method comprises the following steps of: 1, detecting a signal in real time and synchronously uploading the signal; 2, performing signal acquisition; 3, performing cable fault localization by steps of performing signal pre-treatment which comprises normalization treatment, de-noising treatment and fault signal modulus transformation, judging a wavelet packet entropy fault region, determining the fault point by selecting a one-dimensional signal, performing wavelet transformation, solving a wavelet coefficient, detecting a modulus maximum point, sorting singular points after the maximum point, performing first-order difference operation and difference comparison, and performing localization operation on the cable fault position by using a single-end fault localization method free from influence of the wave velocity; and 4, synchronously outputting the treatment result. The method has the advantages of reasonable design, simple operation, convenient implementation and high localization precision, and effectively solves the practical problems that the fault region cannot be identified and the localization precision is relatively low and easily influenced by various factors in the conventional cable fault detection method.

The invention discloses a driving state recognition method based on approximate entropy template matching, and the method comprises the steps: 1, sample library building, wherein samples of one type in the sample library are a plurality of steering wheel turning angle signals in a normal driving state, and samples of the other type in the sample library are a plurality of steering wheel turning angle signals in a dangerous driving state; 2, road information segmentation based on the approximate entropy template matching: carrying out the call of a signal correction module based on the approximate entropy template matching to correct the steering wheel turning angle signals in the library sample, wherein the correction process of any one steering wheel turning angle signal is as follows: carrying out the EMD (Empirical Mode Decomposition), the effectiveness recognition of an intrinsic mode function component, and signal reconstruction; 3, feature extraction; 4, two-class model building and training; 4, driving state information collection and synchronous classification. The method is simple in steps, is reasonable in design, is easy and convenient to implement, is good in use effect, can accurately recognize the driving state of a driver simply and conveniently, and is high in recognition precision.

The invention relates to a preparation method for porphyra yezoensis sesquiterpene algal activity-inhibiting compounds. Dry porphyra yezoensis powder is added with absolute methanol and extracted, andafter drying by vacuum evaporation, extract is obtained; the extract is added with methyl alcohol for alcohol precipitation, so that supernate is obtained; the supernate is extracted by ethyl acetate, so that alga-inhibiting components B, C and D are obtained, silica gel column chromatography is adopted to carry out separation, so that alga-inhibiting components B2, B4, C1, C2, D3 and D4 are obtained, silica gel column chromatography is adopted to carry out separation again, so that alga-inhibiting components B21, B23, B41, B42, C11 and C12 are obtained, and except that the component B21 continues to undergo separation by silica gel column chromatography, the rest of the components adopt silica gel thin-layer chromatography to carry out preparation; and by separation, five thin-layer purealga-inhibiting sesquiterpene compounds are obtained. The invention adopts an activity tracking method to purify and prepare the sesquiterpene compounds with red tide microalga-inhibiting activity from porphyra yezoensis by methods such as methyl alcohol extraction, liquid-liquid extraction, silica gel column chromatography and thin-layer chromatography preparation. The design of the method is reasonable, the operability is high, and the microalge-inhibiting activity of the prepared compounds is good.

The invention discloses a microwave-assisted recycled concrete coarse aggregate picking method. The method comprises the following steps of: firstly, carrying out microwave irradiation and cooling, namely 101, carrying out microwave irradiation for the first time and cooling, namely 1011 carrying out microwave irradiation on waste concrete blocks and 1012 cooling, wherein the step 1011 comprises the steps of transporting and piling the waste concrete blocks in a microwave irradiation region and then carrying out microwave irradiation on the waste concrete blocks by adopting a microwave transmitting device, and the step 1012 comprises the steps of transporting and soaking the waste concrete blocks subjected to microwave irradiation in a cooling water tank for cooling; 102, carrying out microwave irradiation for the next time and cooling; and 103, repeating the step 102 for once or twice; secondly, breaking; and thirdly, screening. The method disclosed by the invention is simple in steps, reasonable in design, easy to realize and good in use effect, and the problems of an existing recycled concrete aggregate picking method that the picking efficiency is low, mass production of recycled concrete aggregate is not applicable and the quality of the picked recycled concrete aggregate is difficult to guarantee can be effectively solved.

The invention provides a method for screening cattle high altitude hypoxia adaptation specific molecular marker, and furthermore a cattle kind or individual which is suitable for high altitude hypoxiasurvival is screened through the specific marker. The method aims at a high altitude hypoxia adaptation heredity characteristic of a kettle kind, and selects local cattle kinds which are distributedin high altitude regions at aspects of genome evolution, selecting and adapting. Multiple genome selecting signals, a full-genome association analysis method and a strategy are combined. Key genes andmolecular makers which are suitable for high altitude hypoxia are efficiently and accurately screened. Reasonable method designed is realized. The detecting method according to the key gene and marker designing has advantages of high accuracy, and convenient application operation. According to the method of the invention, through analyzing different altitude cattle kinds, a gene ACSS2 which is related with high altitude hypoxia adaptation and a haplotype thereof are found; and furthermore a specific SNP which bears a strongest selecting signal is positioned; and the method realizes an important meaning and a high practicability value for cattle molecule breeding operation.

The invention discloses a vector constraint-based random characteristic point selection method for landing position detection. The method comprises the steps of 1, performing acquisition and synchronous uploading of a landing region image; and 2, processing the landing region image: 201, processing the landing region image at an initial sampling moment; 202, processing the landing region image at the next sampling moment by Harris corner extraction, Harris corner matching, SIFT characteristic extraction, SIFT characteristic point matching, characteristic point fusion, characteristic point combination generation and optimal characteristic point combination screening; and 203, returning to the step 202 of processing the landing region image at the next sampling moment. The method is simple in step, reasonable in design, convenient to realize, high in practicality and good in using effect; characteristic points for pose estimation can be simply, conveniently and quickly selected from characteristic points extracted from unknown landing region images; and the pose estimation precision can be effectively improved.

The invention discloses a surrounding rock reinforcement method for a junction tunnel section in an upper-soft lower-hard stratum constructed adopting a shield method and a mining method. The method comprises the steps that 1, tunnel face grouting reinforcement is carried out, specifically, grouting reinforcement is carried out on stratum in front of an excavation face of an upper tunnel body by adopting grouting pipes; 2, junction surface grouting reinforcement is carried out, specifically, grouting reinforcement is carried out on the reinforced stratum by adopting sleeve valve pipes; 3, tunnel arch part advanced support is carried out, specifically, advanced support is carried out on an arch part of the junction tunnel section; 4, grouting pipe removal is carried out; and 5, tunnel faceplugging is carried out, specifically, a tunnel face is plugged through concrete backfilling, and a tunnel face plugging structure is obtained. The method is reasonable in design, simple and convenient to construct and good in use effect, and surrounding rock of the junction tunnel section is effectively reinforced by the method of combining the surface grouting reinforcement with the in-tunnel reinforcement so that the mechanical property of the surrounding rock can be effectively improved; and the tunnel face of the junction tunnel section is reliably plugged before and after reinforcement so that tunnel safety construction can be effectively guaranteed, and ground settlement caused by excavation can be effectively reduced.

The present invention provides a heavy rail scaling apparatus and a method therefor. The apparatus is a single-set or double-set mechanical scaling apparatus comprising a striking head elevating system, a transmission system, a frame and a detection switch. According to the invention, an electrohydraulic push rod is taken as power source to drive a swing rod to swing, a top wheel arranged at the front of the swing rod is employed to control the rise and fall of a lifter plate to allow the striking head arranged at the top end of the lifter plate to be located at either a working position or as top position and cooperate with a scaling saw to realize accurate scaling of the heavy rail. By employing a front detection switch and a damping and thickness-adjusting striking head having a polyurethane bumper pad and an adjusting gasket unit, impact to the striking head can be reduced while the speed of a frequency-changing roller-way is controlled, the service life of the scaling apparatus can be prolonged, the precision of heavy rail scaling can be improved, and the tolerance of the length of the heavy rail is kept between +4mm and -4mm. The apparatus has a simple structure and is easy to operate and convenient to maintain. The method is reasonable, and enables stable system running process, high operation rate, and low accident rate. In addition, the apparatus can increase the yield of heavy rail. The present invention is particularly suitable to be used for the scaling of 95, 96, 99,100 meter heavy rails.

The invention discloses a method for processing phosphate rock tailing by adopting a single direct flotation process. The processing method comprises the following steps of directly feeding phosphate rock tailing into a roughing flotation machine, roughing by once, and properly adding a pH regulator, an inhibitor and an anionic collector during roughing; classifying a foam product during roughing according to the 325-mesh size fraction; feeding a +325-mesh product in grinding operation and grinding to the grinding fineness demanded by flotation; together combining a ground product and a -325-mesh product and then performing secondary roughing; carefully selecting the foam product during secondary roughing by 3-4 times, and scavenging the product in a slot by 1-2 times to prepare a concentrate product. The phosphate concentrate prepared by the processing method is relatively high in grade and recovery rate, and the processing method is simple in process and easy to realize industrial production. The pollution of phosphate rock tailing to environment can be greatly remitted by the method, and the processing method is very important to realize high-efficiency utilization and cyclic utilization of phosphate rock resources in our country.

The invention provides a method for screening a bovine plateau hypoxia-adapted gene ALDOC and a functional molecular marker and application of the bovine plateau hypoxia-adapted gene ALDOC and functional molecular markers, and belongs to the technical field of animal molecular breeding. According to the invention, cattle varieties distributed at high altitude and low altitude are selected from the perspectives of cattle genome selection, genetic adaptation and the like, and genome selection signals between cattle at high altitude and cattle at low altitude and in the cattle varieties are compared by adopting an SNP (Single Nucleotide Polymorphism) chip and integrating three genome selection signal analysis methods of FLK, hapFLK and XPEHH; candidate genes adapting to the plateau hypoxic extreme environment are identified through a combined screening strategy and bioinformatics analysis, potential functional molecular markers are further mined through selection signal verification and re-sequencing data analysis, and a corresponding detection method is established. A scientific basis and a simple and feasible detection technology are provided for molecular breeding such as cultivation of plateau hypoxic characteristic cattle varieties; meanwhile, the method has important significance and value for protection, evaluation and utilization of genetic resources of local cattle varieties.

The invention provides a separation and purification method of algal inhibition active substances in kelp. The method comprises the following steps: extracting kelp dry powder with absolute methanol,and then, performing evaporation to dryness under reduced pressure to obtain extract; performing alcohol precipitation on the extract with a methanol aqueous solution; adding ethyl acetate to supernatant liquid for performing extraction, performing evaporation to dryness under reduced pressure, distilling out ethyl acetate at the lower layer, then adding n-butyl alcohol for performing extraction,and performing evaporation to dryness under reduced pressure respectively to obtain a component B and a component C; performing separation by adopting silica gel column chromatography to obtain B1, B2and C2, performing separation by adopting gel column chromatography, and taking methanol as eluent; performing separation to obtain algal inhibition active components B13, B21 and C21, wherein the silica gel thin layer chromatography is adopted for the B13 and the C21; and finally, obtaining algal inhibition active components B21, B131, B132, C211 and C212 of which the purity reaches the thin layer purity. The separation and purification method of the algal inhibition active substances in the kelp is established on the basis of activity tracking, several algal inhibition active substances areseparated from the kelp, and the kelp can be applied to treatment of red tide microalgae. The method is reasonable in design, and the substances obtained by separation have high purity and good algalinhibition activity.

The invention relates to a safety control method for a vertical shaft grab bucket hoisting system and a control system of the safety control method. The method comprises the following steps: transmitting construction site images of the grab bucket hoisting system through a video monitoring device; in the video monitoring device, recording the construction site images through a video camera which operates together with a crown block by which the grab bucket hoisting system is driven, and transmitting the construction site images recorded by the video camera to a synview and a monitor sequentially through a video cable. Compared with the prior art, the safety control method and the control system thereof effectively solve the problem of safety hazard in the operation of a conventional grab bucket hoisting system, are low in manufacturing cost, are recyclable, are easy to maintain, provide adequate security for safe operation of the grab bucket hoisting system, effectively prevent accident, and guarantee safe and reliable operation of hoisting equipment, thereby being suitable for popularization and application in the fields of crane machinery in urban subway construction and other relative fields.

The invention discloses an underground parking lot parking charging processing method. A first collection unit, a parking lot entrance management unit, display terminals and a parking lot outlet management unit are comprised, wherein the first collection unit is used for generating an underground parking lot map and displaying corresponding building numbers in the underground parking lot map, theparking lot entrance management unit is used for identifying the identity of a vehicle entering a parking lot and distributing one display terminal to each vehicle, the display terminals are used foracquiring the idle parking stall information of the parking lot in real time, acquiring the underground parking lot map, generating a final selected parking stall and navigating a user to the final selected parking stall based on the position information of the final selected parking stall in the underground parking lot map, and the parking lot outlet management unit is used for identifying the identity of the outgoing vehicle of the parking lot and regaining the display terminal matched with the vehicle. The proper parking stall can be intelligently selected for the user according to the destination in the underground parking lot, and the accurate navigation technical effect is achieved.

The invention discloses a heavy metal contaminated soil remediation method. The method comprises the steps that 1, a plurality of detection points are set on heavy metal contaminated soil randomly, wherein the positions and the depth of the detection points are all different; 2, based on the detection points, heavy metal contamination detection is conducted on the soil, and the heavy metal contamination types and degrees are generated; 3, based on the heavy metal contamination type and degree of each detection point, a heavy metal contamination map of the heavy metal contaminated soil is drawn, and in the heavy metal contamination map, the heavy metal contamination type and degree of each coordinate point in the map are shown; 4, based on the heavy metal contamination map, a heavy metal contamination remediation map is generated correspondingly, and based on the heavy metal contamination remediation map, a heavy metal contamination remediation scheme is generated. The technical effectsthat the method is reasonable in design, soil remediation is conducted accurately and efficiently, and the remediation effect is good are achieved.

The invention relates to a water meter reading video recognition method which comprises a water meter and a camera, the diameter of the outer frame circle of a water meter head is preset according to the model of a recognized water meter, the camera is fixed above the water meter, and a water meter reading video is shot in real time. Firstly, the position and the center of a water meter outer frame circle are searched through a Hough circle detection method according to the known outer frame circle diameter; secondly, finding out the positions of all reading circles and the position of the center of a circle in the outer frame circle through a Hough circle detection method, and then determining the to-be-read circle according to the known position of the to-be-read circle; then identifying the circle center of the circle to be read and the position of the fingertip of the pointer in the circle to be read through an angular point detection method, and determining the actual count of the circle to be read according to the rotating angle of a vector formed by the circle center and the fingertip of the pointer; and finally obtaining the running number of the water meter through the actual count conversion of the read circle.

The invention relates to the technical field of soil remediation, in particular to a deep stirring injection remediation method based on in-situ oxidation remediation soil, which specifically comprises the following steps: early-stage soil blending: sampling and analyzing on-site deep soil, and then blending an oxidation agent; segmenting the to-be-remediated soil according to an analysis result; field leveling is conducted on the to-be-remediated area, surface obstacles are removed, then surface water and shallow soil are sampled, the pollution concentration is detected, and remediation treatment is conducted; carrying out remediation treatment on the deep soil by adopting an in-situ injection deepening layer stirring mode; the method is reasonable in design, the deep soil is violently disturbed on the basis of in-situ injection, the contact radius of the oxidizing agent and the soil can be enlarged, the problem that the chemical oxidizing agent makes full contact with pollutants in the soil is effectively solved, and the chemical oxidizing agent is rapidly and effectively migrated into the polluted soil.