49results about How to "Cause error" patented technology

The invention discloses a visual odometer realization method based on fusion of RGB and depth information. According to the existing visual odometer realization method, only environmental RGB information can be obtained based on a monocular or binocular camera and three-dimensional information of the environment can not be obtained directly, so that the application environment of the method is limited and the precision is high. Besides, an RGB-image-matching-based positioning method has characteristics of mature technology and fast processing speed; and a Depth-image-matching positioning method has the characteristic of high environment changing robustness. According to the invention, with combination of the advantages of the RGB-image-matching-based positioning method and the Depth-image-matching positioning method, an RGB-D sensor is used for obtaining RGB and Depth information of a scene simultaneously and a visual odometer realization method based on fusion of RGB and depth information is provided. Information of 2D and 3D modes is utilized reasonably; the dependence on the illumination condition by the visual system is broken; precision, robustness, and practicability of the speedometer system can be improved substantially; and the application time and space for the mobile robot can be expanded.

The invention discloses a method for acquiring a resistance of a power station or transformer substation grounding grid with karst geological and geomorphic characteristics. The method comprises the following steps of: step I, determining a grounding soil resistivity and a test point; step II, calculating a resistance of a main grounding grid; step III, calculating a resistance of an auxiliary grounding grid for reducing a soil resistivity; and step IV, calculating the resistance of the power station or transformer substation grounding grid with the karst geological and geomorphic characteristics. According to the method for acquiring the resistance of the power station or transformer substation grounding grid with the karst geological and geomorphic characteristics, two technical problems of non-uniform soil resistivity and ultrahigh soil resistivity of the grounding grid with the karst geological and geomorphic characteristics are solved.

The invention provides a positioning mold for pre-embedded steel bars. The mold comprises a supporting frame and a steel bar clamp arranged on the supporting frame, wherein the steel bar clamp comprises a clamp fixing frame and clamping jaws symmetrically arranged on the clamp fixing frame, the clamping jaws are hinged to the clamp fixing frame, and the supporting frame is provided with a drivingmechanism for pushing the clamping jaws to rotate around the hinge points of the clamping jaws and the clamp fixing frame. The mold uses the driving mechanism to drive the clamping jaws to inward tighten or loosen, clamping and fixing of the steel bars are facilitated, there is no gap between the steel bars and the positioning mold so that the steel bars cannot swing left and right, deviation of afixation position is avoided, and the positioning mold is suitable for steel bars of different sizes; a push rod is driven by an anchor piece to rotate to drive a push base to move up and down, thereby clamping the steel bars, and then the anchor piece is fixed on a positioning plate, so that a state of stably fixing the embedded steel bars can be maintained; and through manual operation, the steel bars of different sizes can be conveniently fixed without mechanical devices, so that time is saved, labor is saved and cost is low.

The invention relates to a positioning fixture of an augmented reality artificial marker for assisting operation of an aircraft cabin. The aircraft cabin structure is provided with a plurality of connecting holes, a positioning platform is included, a positioning pin is arranged on the surface of one side of the positioning platform, the surface of the other side is provided with a movable stopping block, a plurality of clamping and fixing devices are arranged, and the multiple clamping and fixing devices are arranged at the peripheral edges of the positioning platform; a sliding groove is further formed in the positioning platform, an adjusting device is arranged in the sliding groove, the adjusting device comprises a threaded rod and a sliding block arranged on the threaded rod in a sliding manner, a positioning post is arranged on the surface of one side of the sliding block, the extending direction of the positioning post is the same as the extending direction of the positioning pin, and the positioning post and the positioning pin are located on the same side; and in the use state, the positioning pin is inserted in a certain connecting hole, the sliding block is moved to insert the positioning post into the adjacent connecting holes. The positioning fixture realizes positioning of the marker, reduces the virtual-real registration difficulty, reduces errors between a realscene and a virtual scene inside the aircraft cabin and effectively ensures the assembly efficiency.

The invention belongs to the technical field of automatic selling and relates to a commodity replenishment method and control device of vending equipment. The vending equipment is provided with a movable scanning mechanism. A commodity replenishment worker can replenish or replace commodities according to the actual capacity of built-in commodity channels of the vending equipment, the quantity ofremaining commodities and actual operational requirements; the scanning mechanism can acquire the commodity pictures of each replenished commodity channel, compare the commodity pictures with a commodity image feature library of a cloud server, obtains commodity information, and binds the commodity information with the serial numbers of the commodity channels; after performing confirmation, the vending equipment locally stores commodity replenishment information and reports the commodity replenishment information to the cloud server; the movable scanning mechanism scans the commodity picturesto automatically identify commodities; and therefore, information errors caused by the misoperation of replenishment personnel are effectively avoided, the commodity channels and the commodity information do not need to be bound at the background in advance, and commodities in the commodity channels of the vending equipment can be replaced more flexibly.

The invention relates to a finished vehicle chassis detection system, which comprises a vehicle information acquisition module, a detection module, an information processing module, a control module and a detection information storage module, and the vehicle information acquisition module is used for photographing a vehicle and acquiring vehicle information, the acquisition process is convenient and accurate, and the whole detection speed is improved; for the detection module, a linear array camera can be used for quickly shooting the moving automobile chassis to enable rapid detection, so that the detection efficiency is improved, the automobile chassis can be shot in different areas, and the automobile chassis can be scanned through a 3D scanner to generate three-dimensional coordinate data; and the information processing module judges scratches or defects of the automobile chassis, the fault defect position and the scratch position are shot in a targeted mode through the control module, the whole detection process is accurate and rapid, the problems of missed judgment and incomplete vision caused by manual detection are avoided, fault and scratch position pictures are shot in atargeted mode, and technicians can conveniently overhaul related fault areas in the follow-up process.

The invention discloses a hydroponic plant screening method for indoor formaldehyde purification and belongs to the field of hydroponic plants. The screening method of plant types suitable for formaldehyde purification is comprehensively discussed from three aspects of purifying capacity, resisting capacity and recovering capacity of the hydroponic plants by means of five indexes: effective purifying rate, old leaf damage time, formaldehyde dehydrogenase activity, malondialdehyde content and recovery growth state. The indexes and formulae are optimized based on a lot of tests to form a set of accurate screening steps, a computing method and a data range, so that the screened hydroponic plants can efficiently purify formaldehyde and grow normally.

The invention discloses a rapid soil moisture detection device suitable for different soil textures. The rapid soil moisture detection device comprises a device main body (1). The device main body (1)is provided with a main power switch (3), a motor switch (4), a display screen (5), a USB interface (6), an external charging interface (7) and an operation button (8); the lower part of the device main body (1) is connected with a detection rod (9), an electric wire (11), a motor chamber (14) and a micro motor (16) are arranged in the detection rod (9), a gear (15) is arranged below the micro motor (16), and the gear (15) is connected with the micro motor (16); a spiral drill bit (19) is connected to the lower portion of the detection rod (9), and a detection needle (20) is embedded in the lower end of the spiral drill bit (19). According to the device, soil moisture data can be rapidly obtained in part of soil with more sand and stone or soil with more serious hardening in the karst region, the time and labor are saved, coordinate information of corresponding sampling points can be recorded, and the device is diversified in function, long in service life and simple and convenient tooperate and has higher popularization and application value.

The invention provides an integrated liquid-based tumor cell intelligent sorting device and a control system. An automatic filtering and separating device is provided with a sample placing platform, a liquid-based tumor cell data extraction unit comprises a sample feeding device, a two-dimensional moving gun head and a mechanical arm, and an automatic positioning device is connected with an automatic positioning platform. One end of a conveying rail is connected with a sample conveying window, the two-dimensional moving gun head is connected with the mechanical arm, the mechanical arm is controlled to extract and collect samples and prevent inclined collection errors of the samples, the mechanical arm is arranged above the sample conveying device, the analysis and detection device is connected with an outer cabinet, and a sample retention area is arranged below the outer cabinet. According to the device, the PC control system is adopted to improve the intelligent degree, integrated analysis of the detection sample is achieved, errors are reduced to the minimum by monitoring and controlling the operation process, related equipment components can be reasonably and finely adjusted, early screening of tumor cancers is promoted, and the treatment level of tumor patients is effectively improved.

The invention discloses an Aicardi sulfur detector with a burning substance stirring and mashing function, and belongs to the field of equipment for automatically measuring sulfur content in coal. The Aicardi sulfur detector comprises a powder mixing module, a muffle furnace, a burning substance stirring and mashing device, a first filtering device, a second filtering device, a filter paper ashing device, an experiment aftertreatment device and a control system which are fixed on a bottom plate, wherein the burning substance stirring and mashing device comprises an upper support, a lower support, a linear guide track, a slider, a T-shaped support, a rolling nut, a ball screw, a first motor frame, a first motor, a second motor frame and a second motor; the upper support is arranged on a lifting rack; the T-shaped support is arranged on the slider; and the rolling nut is arranged on the T-shaped support. By the Aicardi sulfur detector, burning substance in crucible can be stirred and mashed, large errors of samples in the crucible can be avoided, and full automation of the Aicardi sulfur detector and improvement of measurement accuracy of the whole Aicardi sulfur detector are guaranteed.

The invention discloses an intelligent garbage classifying device utilizing voices to drive a garbage bearing disc to move. The device is used for solving the problems that at present, during garbagestorage, garbage in garbage cans with various sundries needs to be manually sorted subsequently, the time and labor are wasted, the effect is not obvious, and the recyclable garbage cannot be timely treated. The device comprises a data acquiring unit, a processor, a voice processing unit, an executing unit, a pressure analyzing unit, an early warning unit, a memory and a recycling reminding unit.According to the device, the voice processing unit processes the received voices corresponding to garbage names spoken by users to obtain corresponding garbage classifying categories, and the garbageis stored in the corresponding garbage cans; through the method of speaking the garbage names by the users, the voice control is conducted, and the garbage is classified, so that the phenomenon that the garbage is thrown by mistake due to the fact that the users do not know how to classify the garbage is avoided; and through the recycling reminding unit, recycling reminding is carried out for therecyclable garbage so that the recyclable garbage can be conveniently treated by the recycling users in time, and the workload of cleaners is reduced.

The invention relates to the technical field of computer data processing, and discloses a computer data model training method. The computer data model training method comprises the following steps: S1, data acquisition; S2, data testing; S3, data training; S4, parameters acquisition; and S5: model processing. According to the method, the training data set is divided into the support set training data and the query set training data for combined type diversified training, so that multiple groups and multiple types of training can be completed after a small amount of data is combined when data model training is performed on a computer, and the learning ability of the whole model is improved; therefore, possibility is provided for application of the model in various scenes, the training efficiency and the prediction effect of the model are improved through various statistics, model parameter errors caused by parameter errors can be effectively avoided through the parameter preprocessing matrix, and the stability and accuracy of operation of the whole model are improved.

The invention discloses a designing and detecting method and application of SNP (single nucleotide polymorphism)-type non-competitive probes. The designing method of the non-competitive probes is usedto design a primer probe combination of a corresponding SNP site to be detected, one probe is used to correspondingly detect gene fragment containing a target site while the other probe is used to detect gene fragment not containing the target site, SNP genotypes are directly obtained by the fluorescence ratio of the two probes, conventional competitive SNP detection is transformed into non-competitive SNP detection, and workload in screening is greatly reduced.

The invention relates to the technical field of shared electric bicycles, in particular to a method for automatically creating a station, and the method comprises the following steps: obtaining a parking area; setting at least one parking block in the parking area; historical events in the parking blocks are obtained, and the parking blocks are scored according to the historical events; when the score of the parking block reaches a preset threshold value, creating a station in the parking block; the historical events comprise a bicycle taking event, a bicycle returning event and a bicycle finding event, the step enables scoring to be performed based on the condition that the user uses the shared electric bicycle in the historical events, and when the score reaches a preset threshold value, a station can be created, so that the user can conveniently ride and return the bicycle, and meanwhile, the workload of shared electric bicycle operation and maintenance personnel is reduced; the problem that the sharing technology is difficult to reasonably construct the station is solved.

The invention provides a sampling storage tank for soil pollution treatment. The sampling storage tank comprises a main box, a sampling tube placement box and sampling tubes; the top of a tool placement plate is fixedly provided with five sampling tools through magnet blocks and tool fixing belts. The arrangement of the sampling tube placement box facilitates use convenience, the top of the sampling tube placement box is provided with a plurality of placement box clapboards, 36 square cavities with four sealed sides are separated out by the placement box clapboards, the separated square cavities are right formed in the top of the 36 sampling tubes in a one-to-one mode, and a layer of sealing film is arranged at the top of each placement box clapboard; when one sampling tube needs to be taken out for use, the sealing film at the top of the sampling tube needs to be pierced at first, and then the corresponding sampling tube is taken out, so that the other sampling tubes can be in a sealed state, so that the situation is avoided that errors are caused in the later usage period because soil on the tool falls into an unused sampling tube during sampling, and experimental results can beeffectively prevented from being affected.

Disclosed is a large data server hard disk emergency protection device comprising a shell, a working cavity is formed in the shell in a left-right penetrating mode, a piston cavity with a downward opening is formed in the inner top wall of the working cavity, and a temperature detection mechanism for detecting the temperature in the working cavity is arranged in the piston cavity; a cutter bar sliding groove with a downward opening is formed in the inner wall of the left side of the piston cavity, a cutting mechanism for cutting off a hard disk connecting line is arranged in the cutter bar sliding groove, and an isolation cavity with an upward opening is formed in the inner bottom wall of the working cavity. According to the invention, the environment temperature of the hard disk working area is reduced when a large data server works, errors caused by the influence of the environment during reading and writing of the hard disk are avoided, the data accuracy is ensured, and the hard disk is stored in the isolation area when abnormal conditions such as fire disasters occur, low-temperature circulation is completed in the isolation area through the temperature generated by the fire, so that the integrity of data in the hard disk is ensured.

The invention discloses a panel drilling device for furniture production. The panel drilling device for furniture production comprises a main body, wherein a base is fixedly connected to the bottom ofthe inner wall of the main body; a hydraulic pump is fixedly connected to the top of the base; the output end of the hydraulic pump is fixedly connected to a hydraulic telescopic rod; and the top ofthe hydraulic telescopic rod is fixedly connected to a supporting platform. The invention relates to the technical field of furniture production. The panel drilling device for furniture production achieves the purpose that the supporting platform can ascend and descend for processing panels of different thicknesses and different structures, so that the device is suitable for different panels, theprocessing practicality is improved and the processing efficiency of a plant is improved. The panel drilling device for furniture production also achieves the purpose that the product quality is guaranteed as two sides are fixed again when wood is drilled to prevent vibration generated in the drilling process from leading to a drilling error; and the panel drilling device for furniture productionfurther achieves the purpose that in the drilling process, dust pollution is reduced as generated dust is treated for many times, the physical health of staff is guaranteed, and the working environment of the plant is improved.