58results about How to "Increase digging speed" patented technology

The invention relates to a GPU-based equipment fault early-warning and diagnosis method for improving weighted association rules, which belongs to the field of equipment fault diagnosis and early warning. The method comprises the following steps of: constructing a graphic processing unit (GPU)-based RARG model for realizing a quick weighted association rule algorithm; mining historical monitoring data of the equipment by utilizing a GPU-based improved weighted association rule model, and constructing an association rule pattern base; monitoring the equipment data, and extracting the eigenvalue; judging whether the eigenvalue reaches the threshold, if so, determining that the equipment is in a fault state, and otherwise, determining that the equipment is in a non-fault state; if the equipment is in a non-fault state, matching related data with the association rule pattern base, if the matching succeeds, determining that the equipment is in a defect state, namely, the equipment has a potential fault, and if the matching does not succeed, returning to the step of data monitoring. The invention develops a GPU-based RARG model for realizing the quick weighted association rule algorithm, which has an important application value.

The invention relates to an excavating mechanism of controllable three degree of freedom, comprising an excavating arm, a bucket turning-over mechanism, a backhoe bucket and a stand. The excavating arm is a mechanism of controllable planar two degree of freedom, wherein one end of a driving rod (1) of the mechanism is hinged together with a driven rod (2) through a hinge hole (9), and the other end is hinged on the stand (26) through a hinge hole (8); one end of a driving rod (4) is hinged together with a transmitting rod (3) through a hinge hole (12), and the other end is hinged on the hingehole (11) of the stand (26); and the driven rod (2) is a curved rod which is provided with a hinge hole (10) on the middle curved part and is hinged together with the transmitting rod (3). The invention solves the problems that the traditional mechanical excavating mechanism of single degree of freedom acts simply and the hydraulic excavating mechanism is easy to leak oil.

The invention provides a distributed data processing system and method. The system comprises a plurality of single-serial servers and further comprises a data collection module for signal data collection, a data storage module for storing complied data information, a data generation module for performing data structure compiling on the data information, a data mining module for scheduling the data information according to the calculated task requirement and a sending module for sending status of the data information meeting the conditions to a monitoring host. The collected device data are preprocessed, the collected mass data are stored in a distributed mode, and the problems that existing data access modes are independent and no dependency or precedence relationship exists are solved; during data mining, a plurality of data scheduling nodes are processed at the same time, the response speed is high, and the data can be sent to the monitoring host within the shortest time; when data is inserted and inquired at the same time, the system performance is not lowered, and the input cost is lowered.

The invention discloses a freight trajectory data-based vehicle spontaneous formation mode mining method, and the method comprises the steps: completing the freight spontaneous formation mode search based on a data mining method according to the daily massive freight trajectory data; providing a full-process processing framework innovatively; setting seven databases, using an improved running distance estimation method, a map matching method, a P-OPTICS algorithm and the like to complete tasks of estimating the freight travel of each truck on that day, truck travel positioning point map matching and coordinate repairing, hotspot line and excavation time period planning, truck formation set excavation at each moment, truck spontaneous formation mode excavation and evaluation under a specified line and a specified time period and the like. Therefore, key information such as the running distance is extracted from massive freight trajectory data, and meanwhile, a freight car spontaneous formation mode mining task in a specified road section or time period is completed, so that business reference is provided for freight car formation driving work under an automatic driving background in the future while formation mode characteristics are analyzed.

The embodiment of the invention discloses a difficult sample sampling method and system. The method comprises the following steps: obtaining a feature map corresponding to input training image data byadopting a deep learning model, then determining the number of difficult samples in the feature map based on a first hyper-parameter, and then calculating a preset number of difficult samples in thefeature map according to a second hyper-parameter and samples in the feature map. By the adoption of the method and device, the speed of difficult sample mining can be increased by introducing the twohyper-parameter analysis characteristic graphs, then the characteristic graphs are processed on the basis of the HES model, the parameters of the target detection model are updated, and the final detection precision and timeliness can be guaranteed.

The invention discloses an excavator convergent flow control system and an excavator, wherein the excavator convergent flow control system comprises a main oil pump, a convergent flow pump, a moving arm main valve, a bucket main valve and a first convergent flow switch valve, wherein the main oil pump is respectively connected with an oil inlet of the moving arm main valve and an oil inlet of the bucket main valve, a work oil opening of the moving arm main valve is connected with a moving arm oil cylinder of the excavator, a work oil opening of the bucket main valve is respectively connected with a bucket oil cylinder of the excavator, the first convergent flow switch valve has an on-off function and is provided with an oil inlet, an oil outlet, a control end and an oil return opening, the oil inlet of the first convergent flow switch valve is connected with the convergent flow pump, the oil outlet of the first convergent flow switch valve is connected with the moving arm oil cylinder of the excavator and the bucket oil cylinder of the excavator, and the oil return opening of the first convergent flow switch valve is connected to an oil tank. The excavator convergent flow control system and the excavator have the advantages that the excavating convergent flow of a bucket can be realized, the excavating speed is accelerated, and the work efficiency of the excavator is improved.

A bedrock drilling and excavating apparatus receives power from a rotational power source to drive a drill to strike and shatter bedrock under the gravity of the apparatus and reciprocal vibrations of a pneumatic unit located on the apparatus. The apparatus includes a coupling device to couple with the rotational power source and an air intake vibration structure, a coupling sleeve which has one end coupling with the lower end of a coupling axle and a connector which further couples to the pneumatic unit, and a drill coupling to the pneumatic unit. The pneumatic unit drives the drill to vibrate up and down reciprocally to strike and shatter bedrock. The drill has a drill shell which is alterable according to the diameter of the service shaft without changing the diameter of the pneumatic unit. The drill shell has a plurality of conical drill gimlets mounted thereon in different biased angles to shatter the bedrock and improve drilling and excavating effect.

The invention provides a method and device for mining and purifying similar books in a book library. The method for purifying similar books in the book library comprises the following steps: determining the group of each electronic book according to the names of all the electronic books in the book library; for each group, calculating the similarity among the electronic books in the group according to the chapter list of each electronic book in the group, and if the similarity between two electronic books in the group exceeds a set threshold, determining that the two electronic books are a pair of similar books in the book library; constructing a graph model of the book library by utilizing the similar books in all the groups in the book library, wherein each pair of similar books are two connected end points in the graph model; and for each communication component in the graph model, selecting one electronic book from the communication component to retain and deleting the other electronic books. By applying the method and device, the mining speed of the similar books in the book library can be improved and the scale of the book library can be reduced.

The invention discloses a power transformation operation and maintenance knowledge frequent pattern mining method and device, equipment and a storage medium, and the mining method comprises: carrying out the frequent pattern mining of a pre-constructed compact multi-term support tree CMIS_Tree, and outputting all frequent patterns obtained through mining. According to the Invention, historical data such as the knowledge item learning frequency and the knowledge item learning path of the trainee in an online system are sorted, a frequent pattern mining method is adopted, the incidence relation of all the knowledge items in the historical data is mined, the structured knowledge association rule between all the knowledge items is established, and a solid foundation is laid for personalized recommendation.

The invention belongs to the technical field of engineering machinery, and discloses an excavator bucket rod acceleration hydraulic system. The excavator bucket rod acceleration hydraulic system comprises a first main pump and a second main pump for providing working oil for the hydraulic system, a pilot pump for providing pilot oil for the hydraulic system, and a movable arm oil cylinder and a bucket rod oil cylinder which are used as actuators, the system further comprises a movable arm-to-bucket rod loop regeneration control valve arranged between the movable arm oil cylinder and a movable arm first control valve and a movable arm second control valve, wherein the movable arm-to-bucket rod loop regeneration control valve is used for controlling the switching between regeneration and non-regeneration between driving loops for regenerating the bucket rod oil cylinder from a rodless cavity or a rod cavity of the movable arm oil cylinder. The excavator bucket rod acceleration hydraulic system has the advantages that the driving loops for regeneration from the rodless cavity and the rod cavity of the movable arm oil cylinder to a bucket rod oil way is integrally designed, switching between regeneration and non-regeneration between loops can be achieved through the movable arm-to-bucket rod loop regeneration control valve, and flow regeneration switching between the loops under multiple working conditions can be achieved.

The invention discloses an association rule mining-based power marketing aid decision-making method and system. According to the technical scheme, the method comprises the steps that needed content is clicked in a control interface, the content in the control interface is requested to be acquired and selected, original power marketing data is cleaned and extracted in a Spark platform by applying an RDD parallel programming model, the data is preprocessed through Z-score standardization and an FCM clustering algorithm, and the data is stored in a database. A sparse matrix storage method is introduced on the basis of an association rule mining technology, an improved FFP-Growth algorithm is used for carrying out association rule mining on preprocessed data, a mining result is screened and evaluated, content requested to be obtained is output, the output content is called by using an SOAP protocol, and an interface is controlled to analyze and display the obtained content. And therefore, the problem of marketization requirements of electric power marketing development can be solved.

The invention relates to a kudzuvine root digging device which comprises a digging shovel, a shell, a support and a motor. The digging shovel is rotatably arranged at one end of the shell, the motor is arranged inside the shell and is connected with the digging shovel in a driving mode, and one end of the support is hinged to the middle of the shell. The kudzuvine root digging device can effectively increase the digging speed of kudzuvine roots and enable the collecting process to be simple.

The invention discloses a rotatable large-scale rotary excavation bucket wheel convenient to move for mining. The rotatable large-scale rotary excavation bucket wheel convenient to move for mining comprises a shell, a fixed plate block and an excavation ring main body. A bearing block is arranged in the shell, and a filling plate block is arranged on the left side of the bearing block. Fixing screws are mounted in the upper and lower ends of the fixed plate block, and the fixed plate block is located on the left side of the filling plate block. A pressure bearing block is arranged in the middle of the bearing block, outer encirclements are arranged on the left and right sides of the pressure bearing block, and a fixed sleeve is arranged in the middle of the pressure bearing block. According to the rotatable large-scale rotary excavation bucket wheel convenient to move for mining, compared with an existing common rotary excavation bucket wheel, the functionality is maintained, an internal structure body of equipment is reduced as much as possible at the same time, so that the whole device is more convenient and faster in the using process, the operation of a user is facilitated, theequipment can be move more conveniently and faster due to the reduction of the number of structures, and the using requirements of people are effectively met.

The invention belongs to the technical field of tunnel construction, and in particular discloses a construction method of a super-large-section deep tunnel and an accessory structure thereof. The method comprises the following steps: (1) sequentially dividing the cross section of a tunnel into a left area, a main area and a right area along the transverse direction; (2) digging a left hole and a right hole from the left area and the right area; (3) digging a main hole from the main area; (4) dismantling all temporary supports; (5) repeating the step (2), the step (3) and the step (4); (6) digging an air duct. Compared with the prior art, the construction method can be used for rapidly digging the super-large-section deep tunnel with small vibration.

The invention discloses mechanical equipment integrating foundation pit excavation support and hoisting. The mechanical equipment is used for city comprehensive pipe rack construction. Three gantry cranes are organically combined through a steel beam to form a rectangular frame, and iron plates are installed on the periphery and top. A sliding beam moves on a bearing beam to hoist a prefabricatedconcrete module into a foundation pit from the ground. Universal driving wheels are installed below column legs of the three gantry cranes. The headmost two sets of driving wheels are on the ground, the left four sets of driving wheels are in the foundation pit, the most front end of the equipment is provided with a vibration hammer, and a protection pile is driven into the position below the ground before excavation; a rotating wheel excavator bucket is adopted for continuous excavation, excavated-out mud is conveyed out through a conveying belt, an electric waste soil screen is arranged at the tail end of the conveying belt, and waste soil is screened and sorted; and finally, the rearmost crane column leg is hinged to a main body, thereby being capable of being removed together during turning.

The invention relates to a bucket rod rocker arm mechanism of an excavator. A second shaft hole of the upper portion of a bucket rod is hinged to a shaft hole of the front end of an excavator boom. The bucket rod rocker arm mechanism is provided with a bucket rod cylinder used for driving the bucket rod to rotate relative to the excavator boom. The bucket rod rocker arm mechanism is characterizedin that the bucket rod rocker arm mechanism is provided with a rocker arm swing rod, a bucket rod push rod and a rocker arm bearing block; the rocker arm swing rod is provided with three working shaftholes which are arranged in a triangular mode; the first working shaft hole of the rocker arm swing rod is hinged to a shaft hole of the rocker arm bearing block; the rocker arm bearing block is located at the front end of the excavator boom; the third working shaft hole of the rocker arm swing rod is hinged to a first shaft hole of the bucket rod push rod; a second shaft hole of the bucket rod push rod is hinged to a power arm of the bucket rod; a lug ring of a piston rod of the bucket rod cylinder is hinged to the second working shaft hole of the rocker arm swing rod; the bucket rod cylinder drives the bucket rod to rotate by driving the rocker arm swing rod and the bucket rod push rod. The bucket rod rocker arm mechanism can effectively shorten the stroke of the bucket rod cylinder andincrease excavation force and the excavation speed.

The invention discloses a community discovery algorithm based on an improved association rule, and the algorithm comprises the steps: firstly carrying out the self-adaption of a support degree, and calculating the minimum support degree through a mathematic method; secondly, introducing a Boolean matrix and a transaction weight thought to improve an Apriori algorithm, and reducing the database scanning frequency; and finally, combining with a Spark platform to realize association rule improved community discovery algorithm parallelization. According to the community discovery algorithm based on the improved association rule, the community members are mined by using the MAC address. The Apriori algorithm is improved by introducing the idea of support degree self-adaption and adding a transaction weight to generate a Boolean matrix, the improved algorithm is combined with Spark to realize parallelization of the algorithm, and the relationship between community members is mined by mininga frequent item set. Experimental results show that the ARCD algorithm solves the problems of subjectivity of manual setting of support degree and redundancy of community mining results, has good expandability, and improves the mining speed of community discovery.

The invention discloses an intrusion detection method for a database, and relates to the technical field of network security. The method comprises the steps of 1, improving an association rule miningalgorithm; 2, performing data acquisition and preprocessing; Step 3, establishing an intrusion detection rule base; and step 4, performing intrusion detection. By improving the association rule miningalgorithm, the problems that an existing detection algorithm is complex and low in detection efficiency are solved; The detected intrusion behavior is mined by using an improved association rule mining algorithm to form a knowledge base; The problems that an existing detection method is poor in adaptability and low in detection efficiency are solved.