257results about How to "Improve preprocessing efficiency" patented technology

The invention discloses a continuous locus intersegment connecting speed processing method for a numerical control system, which comprises the following steps of: determining an adjacent two-segment locus connecting model, and acquiring the movement parameter of the adjacent two-segment locus to be processed; calculating the path length of the adjacent two-segment locus to be processed; calculating the speed of a connecting point of the adjacent two-segment locus under the conditions of acceleration, arch height error, instruction feeding speed and corner constraint; calculating the speed of the connecting point of the adjacent two-segment locus satisfying the condition S curve acceleration and deceleration control-based path length constraint of the front segment locus in the adjacent two-segment locus; and calculating the speed of the connecting point of the adjacent two-segment locus satisfying the condition S curve acceleration and deceleration control-based path length constraint of the rear segment locus in the adjacent two-segment locus, wherein the calculated speed is used as a final value of the adjacent two-segment locus connecting speed. The invention provides the continuous locus intersegment connecting speed processing method for numerical control equipment, so that the processing locus of the numerical control equipment is continuous and the speed is smooth.

The invention discloses a data processing method and a data processing system. The method of the invention comprises the following steps: concurrently executing a plurality of Map tasks, wherein each Map task acquires data of the corresponding part in the data to be processed and processes the acquired data to obtain the local processing results of the data to be processed; and executing the Reduce task, wherein the Reduce task obtains the global processing result of the data to be processed according to all the local processing results. The invention can improve the data preprocessing efficiency in the data mining process.

The present invention discloses an automated data mining preprocessing method. The method is characterized by comprising: establishing a database and a preprocessing rule base, establishing a new data table in the database, naming the data table in a standardized mode, sampling to-be-preprocessed data, then importing the sampled data into the new data table, and performing mathematical statistics on a value of each field of the preprocessed data after sampling at the same time; and extracting keywords A, B and C of the data table, querying whether these keywords exist in the preprocessing rule base, and if no, adding the keywords of the data table and all the fields into the preprocessing rule base, and then processing all the preprocessed data by adopting a binning method and a data smoothing method to generate a new rule, and adding the new rule into the original rule base. According to the method disclosed by the present invention, by scoring and feeding back a preprocessing result, a field mapping function is adjusted, so as to improve the preprocessing quality.

The invention relates to a distribution network data online cleaning method based on dynamic outlier detection. The distribution network data online cleaning method comprises the steps of: establishing a buffering queue which is used for receiving the first batch of distribution network real-time data set A1, and obtaining the length L1 of the buffering queue; calculating Euclidean distances between all data points to the data set A1, so as to form a Euclidean matrix D1; diluting a Euclidean matrix Dn-1 if the buffering queue continues receiving the nth batch of distribution network real-time data set An, so as to obtain a diluted distribution network real-time data set A'n-1, and merging a Euclidean matrix Dn and a Euclidean matrix D'n-1, so as to obtain a matrix D''n; detecting abnormal data of the D''n by using an outlier detection algorithm, sending wrong data to a data source for retransmission or error correction, outputting cleaning results, and emptying the buffering queue. According to the method provided by the invention, through three processes that the data buffering queue is established, the Euclidean matrices are dynamically updated and abnormal data points are removed, the real-time online distribution network data generated in the operation and failure processes of a distribution network are cleaned, so that the distribution network data quality and availability are improved.

Provided is a method for improving the laser preprocessing efficiency of optical element small light spot scanning. The method comprises the steps that the position coordinates of a movement starting point and a movement terminal point of each line of samples are calculated according to required preprocessing sample area Amm*Bmm and the center-to-center spacing L and the compensation distance L0 of adjacent irradiation light spots; a computer controls the samples to make uniform motion line by line according to the position coordinates and acquires the position information of sample motion trails in real time, and meanwhile the computer controls a laser device to output pulse laser to irradiate the samples to conduct laser preprocessing on the surface of an optical element at a fixed frequency mu. The method is simple and easy to execute, the arraying trajectory of a square or an equilateral triangle on the surfaces of the samples of the adjacent irradiation light spots can be guaranteed, and the working efficiency of laser preprocessing of optical element small light spot scanning is effectively improved.

The invention discloses a data preprocessing method, a data preprocessing system and a data preprocessing device in a data mining system. The data preprocessing correspondingly has a plurality of preprocessing modes in which the execution sequence is set. The invention adopts a main technical scheme which comprises: determining a current preprocessing mode corresponding to the data preprocessing; and when determining that the processing results obtained according to the current preprocessing mode do not need to be combined and the current preprocessing mode is not the last preprocessing mode of the data preprocessing, processing the data to be processed in the current preprocessing mode at the operating nodes, and controlling the operating nodes to process the processing results in a preprocessing mode next to the current preprocessing mode. According to the technical scheme, the transmission process between different nodes for reading the data to be processed and writing the processing results to be written is not used, the data preprocessing efficiency in the data mining system is improved, and the performance of the entire data mining system is improved.

The invention relates to a straw-degrading composite microbial inoculum which is prepared by mixing a microbial inoculum No.I and a microbial inoculum No.II, wherein the microbial inoculum No.I comprises phanerochete chrysosporium, cacillus and streptomycete; and the microbial inoculum No.II comprises trichoderma, penicillium, aspergillus and actinomycete. The application method of the high-efficiency straw-degrading composite microbial inoculum in pretreatment of ethanol production comprises the following steps: soaking crushed straws in ammonia water to carry out cleaning treatment; adding a nutrient solution to prepare a fermentation substrate; spraying the high-efficiency straw-degrading composite microbial inoculum, and carrying out fermentation treatment for two days; and filtering,and washing with water to neutral, thus obtaining the pretreatment product for ethanol production. The invention has the following advantages: the treatment of soaking straws in ammonia water is beneficial to removing lignin, increasing the enzyme contact area of celluloses and hemicelluloses and improving the pretreatment efficiency; and by combining the microbial inoculum and the fermentation process to degrade straws, different microbes can secrete complementary enzymes in the degradation process, so that the substrate can be thoroughly degraded, thereby improving the biomass resource utilization rate. Besides, the invention is simple in process and convenient to implement, and can not do harm to the environment.

The invention discloses a preprocessing method, device and system for website access logs. The method comprises the steps that original logs are read from a cluster server; the original logs are combined and ordered to obtain a middle log stream; the middle log stream is segmented to obtain a preprocessing log. By the adoption of the preprocessing method, device and system, the problems that due to repeated read-write operation in the prior art, preprocessing for the website access logs consumes a long time, so the speed and efficiency of log processing are low are resolved, preprocessing for log data is completed by means of single-time read-write, processing time and the number of processed intermediate files are reduced, and therefore log processing efficiency is improved.

The invention discloses a log event extraction method and system based on a log tree and a parse tree. The method is divided into two steps of preprocessing and log content parsing, and the method specifically comprises the steps of providing and maintaining a rule base composed of regular expressions and heuristic rules, and extracting a small part of logs to automatically generate a log format; recognizing the log as a log head and log content on line based on the log format; searching the analytic tree, and respectively calculating the similarity between the static field and the dynamic parameter in the log tree and the event tree by adopting the longest common substring and the longest common subvector; and matching the log tree and the event tree by adopting a clustering technology, and extracting events and corresponding parameters. In order to cope with the complexity of the log content, the preprocessing and log content analysis steps in the online event extraction method are improved. The workload of manually recognizing log formats is reduced, the problem that an existing method is difficult to identify events containing uncertain number of parameters is solved, and log events are extracted more accurately.

The invention provides a device for preparing biogas by utilization of organic waste, comprising a biogas collector (14) used for storing the biogas and a methane production reactor (11) used for preparing the biogas through fermentation. The device is characterized in that: the device also comprises an acid treater (1) used for acid treatment of the organic waste, a caustic treater (2) used for alkaline treatment of the organic waste, and an acid production reactor (8), wherein, the acid treater (1) is communicated with the caustic treater (2) by means of fluid; the caustic treater (2) is communicated with the acid production reactor (8) by means of fluid; the acid production reactor (8) is communicated with the methane production reactor (11) by means of fluid; and the methane production reactor (11) is communicated with the biogas collector (14) by means of fluid. The device for preparing the biogas by utilization of the organic waste provided by the invention can improve the gas production efficiency by 50 to 120 percent, can simultaneously obtain potassium-enriched organic fertilizer if KOH is used, and has the excellent advantages of simple and high-efficiency technique, energy conservation, low cost and so on.

The present invention is light aggregate pre-treating process and apparatus. The light aggregate is first pressurized and humidified in a sealed pressure container as the light aggregate pre-treating apparatus in the pressure of 5-8 MPa for 30-120 min to reach water absorbing rate of 60-80 %; and then shell forming treated through mixing with cement for 90-180 min, with the cement adding amount being 50-100 kg for 1 cu m of aggregate without free water, to form watertight shell in the surface of the aggregate. The present invention has high aggregate pre-treating speed, high efficiency, and capacity keeping free water amount and maintaining high pumpability of the concrete.

The embodiment of the invention provides a goods volume prediction method and device, an electronic device and a storage medium, and the method comprises the steps: obtaining first historical goods volume data in a first time period and second historical goods volume data in a second time period, and the first time period being earlier than the second time period; respectively inputting the firsthistorical goods volume data into a plurality of prediction models to obtain a goods volume data prediction value of a second time period output by each prediction model; determining a target prediction model from the multiple prediction models according to the data prediction value output by each prediction model, and the goods volume data prediction value obtained by the target prediction modelbeing closest to the second historical cargo volume data; and predicting the goods volume data by using the target prediction model. According to the invention, the plurality of models are predicted by using the historical goods volume data in advance, and the target prediction model is selected for goods volume data prediction according to the comparison result of the prediction result and the real historical goods volume data, so that the accuracy of goods volume prediction can be improved to a greater extent.

The invention discloses a stem cell culture system. The stem cell culture system comprises a mounting box, a pretreatment mechanism, a cell dispersing mechanism, an isolating and cleaning mechanism, aconvenient test tube picking and placing mechanism, a temperature control mechanism and a cell centrifugation mechanism, wherein the bottom end of the mounting box is fixedly connected with a mounting bottom plate, the cell centrifugation mechanism is arranged on one side face of the outside of the mounting box and comprises a centrifuge main body, and a sealing cover is hinged to one side of oneside face, where the centrifuge main body is placed, of the outside of the mounting box. According to the stem cell culture system, a lifting outer tube can be lifted from the top of a lifting circular tube through an offsetting spring, a top end plane of a connecting flip plate can restores horizontal, thus, a fixing ring and a top end plane of a placement tube can be horizontal, then, the placement tube can correspond to a test tube position of the convenient test tube picking and placing mechanism, thus, a test tube can be more easily placed inside the placement tube, and thus, a cell dispersing device and a stem cell centrifugation mechanism can be more conveniently used in a matched manner.

The invention provides a chip fixing device and a preparation method for an invalid analysis sample. A chip sample is attached to the chip fixing device, anti-friction force and anti-centrifugal force needed in a chemical milling process are provided by fixing the chip sample, automatic chemical milling is achieved, so that automatic batch preparation of the invalid analysis sample is achieved, the pretreatment efficiency of the invalid analysis sample is improved, the success rate of the preparation of the invalid analysis sample is improved, and meanwhile manpower resources are saved; meanwhile, a spring is arranged in a pressure adjusting device, the degree of tightness of the spring can be adjusted through an adjusting valve, so that the pressure applied on a chemical milling platform can be adjusted, the adjustment of chemical milling speed is achieved, and the efficiency of the chemical milling is improved.

The invention provides a water sample pretreatment device, comprising a water inlet, a filtration component and a water outlet. And the device further includes a heating component installed between the water inlet and the filtration component for heating a water sample to a predetermined temperature, and an ultraviolet digestion component disposed between the water inlet and the filtration component for conducting ultraviolet digestion to the water sample. The device performs heating and ultraviolet digestion treatment to the water sample before filtration, so that solid phosphorous organic substances and nitrogenous organic substances can dissolve in water after decomposition and avoid being filtered out. Thus, the reliability and objectivity of monitoring and measurement of the water sample pretreatment device are improved. In addition, as part of the solid organic substances is fully dissolved, occurrence of blockage and inconvenience in cleaning are reduced. Therefore, the filtration speed is improved.

The invention provides a method for cleanly storing and feeding coal slurry fuel of an electric power plant. The method comprises the following processes of: pre-treating coal slurry, protecting and storing the coal slurry, feeding the coal slurry, pumping the coal slurry and feeding the coal slurry with a boiler. The invention also provides a device for cleanly storing and feeding the coal slurry fuel of the electric power plant. The device comprises a coal slurry pre-treating system, a coal slurry protection and storage device, a pre-pressurized feed screw (4), a flashboard valve (3), a coal slurry transmission pump (5), a coal slurry transmission pipeline (6), a rotation type dense material dividing valve (13), a coal slurry feeding device and an electric power plant boiler. The invention overcomes a plurality of defects existing in the prior art and provides the brand new method and the corresponding device for transmitting the cola slurry to the electric power plant boiler.

A false-twist stretching method for animal fibres includes wetting and rolling several times, wet and hot storage, false-twist stretching, shape fixating in cold water, and baking. Its apparatus consists of wetting and rolling unit, false-twist stretching unit, two guide rollers, and two squeeze rollers.

The invention discloses a big data-oriented relational database hybrid heterogeneous query model, which is structurally characterized in that the bottommost layer is a central database and is used forstoring data to be queried; the middle layer is a Hadoop distributed file system HDFS and is used for storing metadata and middle results, and meanwhile, a data cache layer and a global index layer are added to store all data dictionary tables, result buffers of the data dictionary tables and global index information, index directories and index buffers of all the data tables; a MapReduce programming model is adopted in the top layer, and parallel processing is provided for data in the HDFS, and the fault tolerance is guaranteed; and the middleware is provided with four functional modules including a database connector, a data loader, an index generator and a query engine. The big data-oriented relational database hybrid heterogeneous query model supports dynamic division of original data, improves the preprocessing efficiency, and prolongs the response time of query requests under large-scale users on the basis of keeping the integrity of the original data.

The invention discloses a method for preprocessing wool before being spun. Due to the fact that vegetable matter in wool is mechanically processed in the whole process of the method for preprocessing wool before being spun, the vegetable matter removing efficiency is high, no pollution is caused, and damage to the environment is avoided. The method further solves the problems that in the carbonization process of an existing wool preprocessing technology, the environment is polluted, and the native quality of wool fibers is damaged, the wool preprocessing efficiency is improved, the environmental pollution caused by preprocessing on wool before being spun is reduced, and the native quality of wool fibers is kept.

The invention relates to a continuous sludge pyrohydrolysis system and method, wherein the continuous sludge pyrohydrolysis system comprises a sludge surge bunker, a high pressure sludge feed pump, a high pressure feed stop valve, a sludge pyrohydrolysis reaction device and a high pressure discharge stop valve which are sequentially connected with one another by pipelines, and the high pressure discharge stop valve is connected with a sludge after-treatment device by a pipeline; the sludge pyrohydrolysis reaction device comprises a tank body, a stirring device arranged in the tank body, a steam pipeline entering the tank body by penetrating the top of the tank body, extending along the inner wall of the tank body downward to the tank body bottom, temperature detectors which are respectively arranged at the upper part and the lower part of the side wall of the tank body, and a pressure detector arranged at the top of the tank body; a feed inlet is arranged in the bottom or the lower part of the side wall of the tank body, and an outlet is arranged in the upper part of the side wall of the tank body; the feed inlet and the outlet are respectively connected with the high pressure feed stop valve and the high pressure discharge stop valve; the inlet of the steam pipeline is provided with a steam valve.