122results about How to "Solve collection difficulties" patented technology

The invention relates to an integrated utilizing technology for agricultural waste and in particular relates to an integrated converting and utilizing co-production method for agricultural waste. The integrated converting and utilizing co-production method comprises the following steps: 1. collecting and processing raw materials; 2. carrying out pyrolysis on the raw materials: generating biochar and high-temperature mixed gas; 3. converting the high-temperature mixed gas: converting the high-temperature mixed gas into wood tar, wood vinegar and fuel gas; 4. manufacturing fertilizers; 5. refining fuel oil: converting the wood tar into biofuel oil and wood pitch; 6. purifying the fuel gas: purifying the fuel gas into clean fuel gas; and 7. converting the fuel gas: respectively sending the biofuel gas into a gas generator, a gas supply pipe network and a heat boiler to covert the biofuel gas into heat energy and electricity energy. The agricultural waste can be converted by multiple levels and are combined to be utilized to obtain straw carbon, fuel gas, heat energy, electricity energy, fertilizers, fuel gas and the like. The use ratio of the agricultural waste reaches 100%. The problem that the agricultural waste is stacked and burnt disorderly can be solved, the pollution problem caused by using chemical fertilizers and pesticides for a long time can be solved, and the problem of utilizing energy, fertilizer and oil in rural areas also can be solved.

The invention discloses a video service experience quality identification method based on encrypted traffic data. The method comprises the following steps: acquiring an encrypted traffic file and corresponding event information when a video is played; processing the event information to determine the QoE level of the playing;preprocessing the encrypted traffic file to obtain TCP stream data; constructing an end-to-end deep learning model by taking the QoE grade as a label and the TCP stream data as a feature; The model can identify the QoE level of video playing according to the encrypted traffic file. According to the video QoE level identification method provided by the invention, the video QoE level can be accurately identified, and a fully automatic scheme is provided.

The invention discloses a centrifugal gas-electric spinning device by utilizing a negative-pressure array. The centrifugal gas-electric spinning device comprises a high-voltage alternating-current generator, an air supply device, a box body, a centrifugal sprayer, a centrifugal driving mechanism and negative-pressure receiving devices. The interior of the centrifugal sprayer is provided with a liquid storage cavity. Filament outlet holes are arranged in the centrifugal sprayer. Each negative-pressure receiving device comprises a collector, a negative-pressure pipe and a negative air-pressure generator. Negative-pressure pipe openings are formed by negative-pressure pipes in the bottom of the box body. Collectors are nested into the negative-pressure pipe openings. The multiple negative-pressure receiving devices are arrayed in an annular array with the centrifugal sprayer as the center. The high-voltage alternating-current generator is formed for generating an electric field. Airflow spraying out of the filament outlet holes is formed by the air supply device. The centrifugal gas-electric spinning device by utilizing the negative-pressure array has following beneficial effects: nanofibers are formed by sprayed polymers under airflow, an electric field, negative pressure and centrifugal force such that a three-dimensional structure is formed by nanofibers on the negative-pressure receiving devices; thickness of fiber disposition is increased; biological materials are better compatible and the application scope of technology materials is broad; and a support structure obtained is beneficial for cell growth of tissue engineering.

The invention relates to a greenhouse gas collection system and a greenhouse gas emission analysis method. A collection device comprises an overwater gas collection device and a gas storage device connected with the overwater gas collection device. The overwater gas collection device comprises a gas collection tank, a gas collection fan, a gas collection pipe, a battery box, a handle and a foaming plate. The gas storage device comprises a gas collection bag and a three-way valve. By utilizing the greenhouse gas device, gas samples are collected at the nearshore positions of the two shore sides of a river and water-gas interfaces of a channel, a fish pond, a reservoir and the like, the collected samples are taken back to a laboratory, and the concentration of greenhouse gases of CO2, CH4 and N2O3 in the gas samples is measured. The collection device is simple and reasonable in structural design, low in cost and easy and convenient to operate and use, has the good stability and sealing performance. The analysis method is simple in operation steps, convenient to implement, small in experiment error, high in accuracy, and capable of effectively solving the problem that river greenhouse gases are difficult to collect.

The invention provides a method and device for extracting traffic limitation at a road intersection, and the method comprises the steps: obtaining the traveling information of a plurality of vehicles at one road intersection in real time, and obtaining the traveling tracks of the vehicles at the road intersection according to the traveling information; obtaining a plurality of passage links of the road intersection under the condition of no traffic limitation; enabling the traveling tracks of the vehicles to be matched with the passage links, and obtaining the traffic condition of the road intersection; and obtaining the traffic limitation information of the road intersection according to the traffic condition of the road intersection. The method provided by the invention solves a problem that the traffic limitation information of the road intersection is difficult, improves the data collection efficiency and accuracy, provides a safer intersection for a user for travel, reduces the violation at the road intersection, and provides a safer and faster driving environment.

The invention relates to a method for evaluating health status of a switching power supply based on least square fitting, belonging to the technical field of evaluation of the health status of the switching power supplies, and aiming at solving the problems that an existing method for evaluating the health status of a switching power supply is difficult for data acquisition and bad for evaluation result reliability. The method disclosed by the invention comprises the steps: firstly establishing a switching power supply simulation model, determining the key stress factor influencing the output characteristic of the switching power supply and the fluctuation range of the key stress factor; then determining key components of the switching power supply, and establishing a degradation model of each key component; sequentially carrying out quantitative degradation injection on the degradation models of the key components; then constructing an output characteristic parameter degradation model of the switching power supply; and acquiring the key stress factor values and the output characteristic parameter value of the switching power supply, thus obtaining the health status evaluation result of the switching power supply according to the output characteristic parameter degradation model of the switching power supply. The method disclosed by the invention is used for evaluating the health status of the switching power supply.

The invention discloses a preparation method and device for a three-dimensional support for spinning by utilizing gas-electro spinning based on negative-pressure collection. A device comprises an alternating-current high-voltage generator, a liquid supply device, a gas liquid device, a coaxial sprayer and a negative-pressure collecting device. The coaxial sprayer is provided with a liquid outlet and a gas outlet. The gas supply device is used for conveying a spinning solution or melts to the coaxial sprayer and enabling melts to flow out of the liquid outlet. The gas liquid device can generate air flow blowing from the liquid outlet to the negative-pressure collecting device via the liquid outlet. The alternating-current high-voltage generator can form an alternating electric field between the coaxial sprayer and the negative-pressure collecting device. The negative-pressure collecting device comprises a collector, a negative-pressure pipe and a negative-pressure generator. The spinning solution or melts form solution jet flow or melt jet flow in the coaxial sprayer and the collector under effect of airflow and the alternating electric field.The preparation method and device for the three-dimensional support for spinning by utilizing gas-electro spinning based on negative-pressure collection have following beneficial effects: by adoption of spinning technology based on the negative-pressure collector, the nanofiber three-dimensional support featuring a broad range of preparation material, small fiber diameters, uniformly-distributed filament diameters, a loose structure, great thickness and superior mechanical properties is obtained and has great technological universality.

The invention discloses a collecting device of different levels of underground water. The collecting device comprises a plurality of collecting pipes capable of being spliced mutually, wherein a plurality of slits which are communicated with inner parts and outer parts of the collecting pipes are engraved on the outer walls of the collecting pipes; the collecting pipe positioned on the lowermost end is provided with a hollow conical drill head; the inner parts of the collecting pipes are provided with a plurality of moisture collecting funnels by an embedded connection mode; small holes are formed in the side walls of the moisture collecting funnels; the lower end of each moisture collecting funnel is connected with a water guide pipe and a gas pipe. The collecting device of different levels of underground water has the following characteristics that underground water samples at different levels are collected by the moisture collecting funnels installed on different collecting pipes, are guided out of the ground surface by corresponding water guide pipes, and are collected; the collecting device is convenient to carry, can be spliced to the required length, is simple and convenient to install, is low in construction quantity, can be used continuously by installation once, is small in occupied space, and damages few sampling sites; the gas pipes and the water guide pipes can be replaced to be used mutually, and can be filled with clean water to be cleaned; the problem of sampling and collecting difficulty of shallow layers of underground water at different levels is solved.

The invention relates to a method for analyzing the safety property of software based on sequence clustering. Based on reverse software bug analysis technology, the quality of a bug knowledge base and the analysis efficiency of software bugs are improved by collecting the conventional software bugs, preprocessing the software bugs, saving a processed software bug program operation sequence in a software bug sequence database, classifying the software sequences in the software bug sequence database by an integral sequence similarity-based clustering algorithm and saving the classified sequences in the bug knowledge base; and the accuracy of the software bug detection is improved by analyzing a suspected software bug sequence extracted from to-be-detected software, measuring similarity level between the sequences by using the logic distance-based similarity measurement and analyzing the software bug.

The invention discloses a method for establishing and analyzing a drought index based on a gravity satellite. The method for establishing and analyzing the drought index based on the gravity satellite comprises the steps of preprocessing of observation data of the gravity satellite, extraction of the changing process of average total land water of an area, calculation of the spatial distribution of the total land water of the area, standardization processing of the total land water of the area, and calculation and analysis of the time sequence and spatial distribution of total water abnormal indexes of the drought index based on the gravity satellite. According to the method for establishing and analyzing the drought index based on the gravity satellite, the drought index established with the method can effectively reflect the seasonal and interannual changing rule of the total land water and scientifically disclose disaster causing process of a drought; a disaster-inducing mechanism of the duration of the drought is considered, the influence mechanism of the serious drought at the earlier stage on the disastrous situation at the later stage can be reflected effectively, and the problem of the scientific bottleneck of monitoring and evaluation of the drought in an area where data are insufficient or unavailable is solved.

The invention relates to a safe and reliable intelligent branch cable connecting box, comprising a box body, a main cable, a branch cable, a grooved wire clamp, a main control board and a wireless communication device, wherein the main cable UVWO passes through the grooved wire clamp and the branch cable UVWO is connected with the grooved wire clamp. By setting temperature detection circuit, undervoltage detection circuit and leakage current detection circuit in the cabinet to carry out various aspects of safety detection, and setting remote monitoring to obtain information in a timely manner.The intelligent connecting box has stable performance and can send out alarm signal at any time, and solves the problems of low safety factor of floors and easy occurrence of fire in modern buildings.

The invention provides a power network planning integrated data platform management system which comprises a comprehensive treatment main control device, an integrated data acquisition device, a prepositive server, a WEB server, a database server, a maintenance work station and data entry equipment, wherein the comprehensive treatment main control device, the prepositive server, the WEB server, the database server, the maintenance work station and the data entry equipment are connected by the Internet network; the comprehensive treatment main control device is connected with the integrated data acquisition device by a satellite communication network; the comprehensive treatment main control device is a logic circuit; the integrated data acquisition device is a logic circuit; and the data entry equipment is a desktop computer or a laptop. According to the invention, the problem of difficulty in collection of power network planning basic data is solved and working efficiency of power network planning is improved.

The invention discloses a system for accurately collecting mountainous area tobacco production information data and a data collection method. The tobacco production information system comprises a tobacco data management center server system, a handheld data collection terminal and a management terminal, wherein the handheld data collection terminal is connected with the tobacco data management center server system in a wireless interaction mode, or the handheld data collection terminal is connected with the tobacco data management center server system in a wired interaction mode after being connected with a computer through a data connecting line. In this way, it can be ensured that data input each time is site practical operation; data is displayed from a macrocosmic view to a microcosmic view, step-by-step drilling of data at any level of subordinate departments is realized, the current situation that only production data at a lower level can be known is changed, the problem of difficult and complicated tobacco field data collection can be effectively solved, and meanwhile data entry authenticity is guaranteed.

The invention discloses a device capable of dynamically managing motor vehicle parking and a parking space. The device comprises a parking space lock, a background server, parking management software and a user terminal (smart phone, NB, PC, PAD), wherein the parking space lock comprises a parking space lock electromechanical part, a sensing module, a chip processor, a positioning module, and a communication module; the parking management software is installed at the background server, and a user operates at the user terminal; the parking space lock is communicated with the background server through the internet; the sensing module in the parking space lock senses parking space information (state information such as use, idle and damage), the parking space information is sent to the background server in real time after being processed through the chip processor; position information sent from the positioning module is sent to the background server in real time by the communication module after being processed by the chip processor; at the same time, the parking space ID number, the parking time and the vehicle picking time and other information are sent to the background server; the background server comprehensively processes the parking space state information, the parking space management user terminal information and the parking user terminal information, and third-party payment platform information is added when payment is needed, and then a corresponding locking or unlocking instruction is sent to the parking space lock.

The invention discloses a smoke collecting device of an iron tapping hole of a rotary electric furnace. The smoke collecting device comprises a smoke collecting hood (2) arranged around the iron tapping hole (8), an annular chute (3) fixedly arranged outside the smoke collecting hood (2), an arc-shaped flue (5) matched on the outer side of the chute (3) in a sliding manner, and smoke discharging branch pipes (6) uniformly distributed on the flue (5). The smoke collecting hood (2) and the chute (3) rotate together with a furnace body of the electric furnace (1), and the flue (5) is fixed in a working region. The smoke collecting device of the iron tapping hole of the rotary electric furnace, provided by the invention, is used for perfectly collecting and discharging smoke generated by the rotary furnace in an iron tapping process through matching of the smoke collecting hood and a smoke discharging channel, effectively prevents smoke overflow, feasibly solves the problem of difficulty in collecting the smoke in the iron tapping hole of the rotary electric furnace, and has higher use value.

The invention relates to a method for acquiring brain evoked potentials, which comprises the following steps that: an earphone is connected with a human body so that an output click sound wave can generate stimulation to a human brain, an evoked potential BAEP can be led out from the scalp, and analogue signals of the evoked potential are amplified, are converted into digital signals by an A / D converter, and then are acquired, processed and analyzed. The method can effectively achieve the acquisition and the processing of feeble computer signals. The method can well satisfy the requirements on the real-time performance, the reliability and the large capacity for acquiring, processing and analyzing medical feeble human body signals by amplifying the acquired human body signals through an amplifier and combining the strong data processing functions of a PC.

The invention discloses a method and a device for detecting the strength of transient electric shock caused by an object nearby a power transmission corridor to a human body. The method comprises the following steps: pre-arranging a voltage acquisition device and a current acquisition device, enabling a tester pedaled on a metal plate to be in contact with the charged object nearby the power transmission corridor during detection, acquiring a human body surface potential at a human body skin position through a voltage signal within the sampling time T and acquiring all parts of transient current entering the human body via a contact point and various coupled distributed capacitors through the current acquisition device; then calculating heat generated within the sampling time T according to the human body surface potential and the various transient current flowing through the human body; the device comprises a human body contact metal part, the metal plate, a current collection lead, the voltage acquisition device, the current acquisition device and a signal acquisition device. The method and the device disclosed by the invention have the advantages that the difficulty that a distributed parameter system distributes acquired current can be overcome, the strength of the transient electric shock caused to the human body can be accurately and quantitatively evaluated, the detection is accurate and reliable, the reaction is sensitive, and the resolution ratio is high.

In order to improve the capability of analyzing the logs of the network DNS server, the invention innovatively proposes the construction of the domain name resolution system-oriented knowledge graph by integrating multiple technologies. The method comprises the following steps: firstly, designing an automatic crawler model based on the combination of aiohttp and dig technologies by applying the principles of domain name resolution, an authoritative domain name server, alias resolution, an autonomous system and the like, and constructing a corresponding domain knowledge base; secondly, on the basis of the knowledge base, designing a domain name resolution system-oriented knowledge graph prototype and completing the construction of the knowledge graph, wherein the node scale of the knowledge graph prototype reaches nearly 5 million; and finally, completing construction of a web log abnormal behavior recognition model based on assistance of the knowledge graph. Through experiment and practical application feedback, the knowledge graph plays a key role in the process of detecting and analyzing the abnormal behavior of the web server log, and the recognition rate of the abnormal behavior model of the web log is improved.

The invention discloses a bubble electrostatic-spinning device by utilizing negative pressure. The bubble electrostatic-spinning device comprises a base, a high voltage supply device, a liquid supply device, a protection cover and a negative-pressure receiving device. The negative-pressure receiving device is connected to the ground or connected with the high voltage supply device. Multiple spray pipes and a first air outlet are arranged on the base. The spray pipes are internally provided with second air outlets. The first air outlets and the second air outlets are connected with an air pressure supply device. The high voltage supply device is communicated with electrodes of all spray pipes. An electric field used for generating jet flow is arranged between the electrodes and the negative-pressure receiving device. The liquid supply device is communicated with solution guide pipes in the all spray pipes. The negative-pressure receiving device comprises a collector, a negative-pressure pipe and a negative air-pressure generator. A negative-pressure pipe opening is formed in the top of the protection cover by the negative-pressure pipe. The collector is of a porous structure and nested into the negative-pressure pipe opening. The bubble electrostatic-spinning device by utilizing negative pressure has following beneficial effects: with the help of high-speed airflow, nanofibers are directionally settled in a structure of a three-dimensional support having a special shape on the collector so that the problem that electro-spinning three-dimensional fibers are collected with difficulty is solved.

The invention provides integral type spiral milling cutter wear image acquisition device and method based on machine vision. The integral type spiral milling cutter wear image acquisition device based on machine vision is simple in structure, reasonable in design and convenient to operate, the risks of workpiece scrappage and machine tool damage caused by cutter wear in the actual processing process are reduced, and a cutter is ensured to process constantly with a normal cutting state. The device comprises an installation base, a circumferential rotation assembly and a profile fixing frame, wherein the circumferential rotation assembly comprises an annular guide rail fixedly arranged on the installation base by adopting a cutter axis as a center, multiple circumferential sliding blocks in sliding fit to the circumferential direction of the annular guide rail, an inner gear ring fixed to the inner side of the annular guide rail, and a drive gear meshing with the inner gear ring; the profile fixing frame is arranged in a frame type and is fixed onto the multiple circumferential sliding blocks; a stepping motor, a light source and a camera are fixed onto the profile fixing frame; an output shaft of the stepping motor is perpendicularly and fixedly connected with the drive gear; and the light source and the camera are arranged around the cutter axis and are used for shooting a front cutter surface, a bottom blade and a back cutter surface of the integral type spiral milling cutter.

The invention discloses a maritime unmanned aerial vehicle video image defogging method based on deep learning, and the method comprises the steps of 1) shooting an offshore clear video image throughan unmanned aerial vehicle airborne camera, and building an offshore video image database according to an atmospheric scattering model; 2) establishing a multi-scale convolutional neural network model, and training by using an offshore video image database; 3) acquiring an offshore video image through a visible light camera mounted on the unmanned aerial vehicle to obtain a shot foggy image I '(x); 4) inputting the foggy image I '(x) into the trained multi-scale convolutional neural network model for processing to obtain an intermediate variable k (x); 5) obtaining a final defogged image J '(x) by utilizing a clear image restoration formula, wherein the clear image restoration formula is J' (x) = k (x) (I '(x)-1), I '(x) is the shot foggy video image, J' (x) is a restored clear image, k (x) is an intermediate variable, and b can take any constant. The method can effectively solve the problem of blurring of the video images obtained by the unmanned aerial vehicle visual system under thefoggy weather condition, thereby improving the search and rescue capability of the unmanned aerial vehicle.

The invention discloses a training method of agricultural directional artificial intelligence. Graphic data of agricultural land and corresponding agricultural data are continuously collected, and pretreatment is performed, a training set and a test set are performed, a simulation platform is built, a corresponding artificial intelligence algorithm is selected according to the performance of thecomputing terminal, training is performed through a parallel virtual system; calculation power distribution is performed according to performance requirements in various artificial intelligence algorithms, an evaluation network is constructed, each decision is evaluated, the decision training efficiency is improved, the decision made by each grid is planned as a whole, the cost of the made corresponding decision is selected according to the grid distance, and the obtained optimal decision is deployed. According to the method, training is carried out in a single operation node through multipleartificial intelligence training methods, more parallel operations of a CPU and a GPU are mobilized under the condition that the computing power is limited, an evaluation function is introduced to reduce the training expenditure, and the operation cost of agricultural execution is greatly reduced.

Based on comprehensive analysis of characteristics, mechanisms, data and internal complex relation quantitative modeling requirements of a metal additive manufacturing process system, process data composition and a data node relation framework are elaborated in detail; modern test design, advanced material characterization, multi-physical field numerical simulation and big data analysis technologies are integrated into a systematic process test design and a structured process data acquisition process; all data required for establishing a high-quality deep neural network prediction model is obtained by elaborately designing test points and a process data acquisition scheme according to the principle of uniformity and orthogonality, and the comprehensive test quality and test efficiency are focused on by focusing on the common response of a plurality of variables. Structured efficient collection of highly-associated diversified multi-element and multi-dimensional discrete strong coupling process data of a process system is achieved, data support is provided for quantitative analysis and process mechanism modeling of a complex manufacturing process system, and a foundation is laid for exploring the fields of welding big data, high-end additive equipment development and intelligent manufacturing.

The invention discloses a cloth defect detection method based on an adversarial neural network, a terminal and a storage medium. The method comprises the following steps: 1, training a GAN model according to a positive sample of cloth, and outputting the GAN model after the training is completed; 2, sending a detection image sample of the cloth to the GAN model, and reconstructing the detection image sample by the GAN model to generate a good reconstructed image sample; and performing structural similarity comparison on the detection image sample and the reconstructed image sample, and judgingwhether the detection image sample has defects or not according to the difference degree of comparison. According to the invention, the GAN model is trained and generated through the positive sampleof the cloth, and the test image sample of the cloth is reconstructed through the GAN model to generate a reconstructed image sample, and the structural similarity between the test image sample and the detection image sample is obtained through comparison to judge whether defects exist or not, so that various defects of the cloth can be detected.

The invention relates to a tree leaf collecting trolley suitable for a road and belongs to the technical field of sanitation equipment. The tree leaf collecting trolley comprises a vehicle chassis, anauxiliary frame, a box body, a fan assembly and a suction nozzle assembly. The box body is mounted on the auxiliary frame, the inner part of the box body is divided into a garbage cabin and a power cabin, and the fan assembly is mounted in the power cabin; the fan assembly comprises a volute, an impeller arranged in the volute and a power device which drives the impeller; a fan air outlet and a fan air inlet are formed in the volute, the fan air outlet faces the garbage cabin, a box body air outlet is formed in the top of the garbage cabin, a plate type filter element is mounted at the box body air outlet, saw teeth are arranged on the inner side of the fan air inlet, and a cutting disc is arranged on the impeller; and the suction nozzle assembly comprises a hose detachably connected to the fan air inlet. The tree leaf collecting trolley can assist sanitation workers to collect and transport tree leaves in a centralized manner in autumn, and tree leaves which are cut and crushed are large in density and compact and are not fluffy, so that the single-time collecting and transporting ability is improved effectively.

The invention relates to the field of garbage treatment equipment, in particular to an integrated machine for collecting and processing plastic and paper garbage in rivers and lakes, and solves the problem of salvage treatment of floating garbage in water bodies. The structure comprises a ship body, a trapping net A, a crusher, a transmission belt A, a pulverizer, a cleaning machine, a transmission belt B, a packaging machine A, a centrifugal machine, a spiral propeller, an electric control system and an operator moving area, wherein the trapping net A is positioned at the center of the frontend of the ship body, the spiral propeller is positioned at the central part of the tail part of the ship body, the crusher is arranged at the rear side of the trapping net A, the front end of the transmission belt A is positioned at the lower side of the crusher, the pulverizer is arranged below the rear end of the transmission belt A, the cleaning machine is arranged below the pulverizer, the front end of the transmission belt B is positioned below the cleaning machine, the lower side of the rear end of the transmission belt B is provided with the packaging machine A, the cleaning machine isconnected with the centrifugal machine through a pipeline, and a carbon fiber sewage treatment all-in-one machine is arranged under the centrifugal machine. And the purpose of classifying and collecting and processing the plastic and paper garbage in rivers and lakes is achieved.

The invention discloses a garden ecological soil environment-friendly restoration device which comprises a restoration device body, a conveying cavity and a bucket. The conveying cavity is installed at the right end in the restoration device body, and the right side of the conveying cavity is in rotating connection with the bucket. A helical blade is arranged on the left side of the conveying beltand are mounted at the upper left corner of the bucket. A motor is mounted at the lower left corner of the helical blade. A processing cavity is mounted at the left end in the restoration device bodyand mounted on the left side of the conveying cavity. A control switch is mounted on the front surface of the restoration device body, and a screen net is horizontally clamped in the middle of the surface of the processing cavity. Vibrating machines are mounted at the left end and the right end of the screen net, and pressurizing machines are mounted at the two ends of the middle of the processing cavity. The garden ecological soil environment-friendly restoration device is stable in structure, high in soil collecting efficiency, capable of preventing sand and stone from being mixed into soil, capable of preventing soil from being caked in the restoring process and good in restoration effect, and has high popularization value.

The invention belongs to the field of biotechnology and particularly relates to a tissue culture rapid propagation method for Mucuna bracteata DC. ex Kurz. The method includes the steps that Mucuna bracteata DC. ex Kurz explants are collected and disinfected; Mucuna bracteata DC. ex Kurz cluster buds are induced and propagated; rooting culture is performed on strong seedlings of Mucuna bracteata DC. ex Kurz; Mucuna bracteata DC. ex Kurz seedlings are hardened and transplanted. The method can effectively solve the problems that Mucuna bracteata DC. ex Kurz seeds are hard to collect, and the rate of emergence of the seeds is low under natural conditions, and the increasing market demands of interplanting leguminous green manure for building ecological rubber plantations, oil palm plantations and orchards in the modern agricultural development process for seedlings can be met.

The invention belongs to the technical field of rural domestic waste treatment, particularly relates to a method for in-situ ecological treatment of town domestic waste water by using river and creek converging. The method comprises the following steps that town rivers and creeks serve as carriers, an ecological protection slope is constructed along two sides of the rivers and creeks, an in-situ biology gate purification channel section in length of L1, a concrete downflow weir in the length of L2, a batch-type in-situ oxygenation tank section in the length of L3, a surface flow constructed wetlands system section in the length of L4 and a geotechnical cloth downflow weir in the length of L5 are sequentially constructed along a water flowing direction of the rivers and creeks to serve as wastewater treatment units. Domestic waste water is guided in the rivers and creeks for converging through the ecological protection slope on two sides of the in-situ biology gate purification channel section, and then the domestic waste water sequentially flow through the wastewater treatment units. The method uses original rivers and creeks in towns to serve as the carriers of the domestic waste treatment, uses a rural waste water collection and treatment mode which is good in treatment effect, simple in management and maintenance, low in cost of construction and low in energy consumption and has great significance on a problem that town domestic waste water is difficult to collect and treat in our country.

The invention relates to a method for detecting parallelism and flatness of a truss track based on a three-dimensional laser scanner. The method comprises the following steps: taking point-cloud data of two different tracks, obtained by the laser scanner as a processing object; performing cross-section cutting on the point-cloud data on the same track, and extracting section data according with conditions by use of cross section data filtering and cross section data matching methods so as to fit a center point of each cross section; and then through reference conversion, converting the track and the center point of each cross section into a specified coordinate system so as to calculate track linearity, a track span, a track elevation difference and a relative elevation difference. Compared to the prior art, the method solves the problems of difficult data acquisition and tedious data post processing and realizes such advantages of data acquisition and processing integration, automation and the like.