45results about How to "Reduce the impact of distracting factors" patented technology

The invention discloses a sea surface target detection method based on improved RBD significance calculation. The method comprises the following steps that (1) an original colored sea surface image isobtained; (2) a simple linear iteration clustering (SLIC) algorithm is used to carry out super-pixel segmentation on the sea surface image; (3) a semantic segmentation algorithm based on a Gaussian mixture model (GMM) is established, the image is segmented into sky and seawater areas, and a corresponding sea-sky line obtained by fitting boundary points of the sky and seawater areas into a straight line; (5) all super pixels are divided into seawater and sky types according to position information of the sea-sky line; (5) the significance is calculated according to super pixel characteristic information of the sea water type via the improved RBD (robustness background detection) algorithm, and a salient map of the sea water area is obtained; and (6) the salient map is segmented according to a fixed threshold, and a foreground target, namely the sea surface target, is extracted. Thus, the sea surface target can be detected from the complex background effectively, and the accuracy is higher.

The invention relates to the wireless sensor network positioning field, and specifically relates to a wireless sensor network positioning method based on an RSSI (received signal strength indicator). The method comprises the following steps: a network is established; a host computer software sets a position coordinate of each reference device and a configuration parameter of each mobile device; the reference device sends a built-in RSSI value and an ID to other reference devices; when the reference device A serves as a difference correction reference node, a reference positioning coordinate and a positioning offset amount of the reference device A are calculated; the mobile device, according to received data, obtains a preliminary positioning coordinate and a difference correction coordinate of the mobile device; a correction mean value coordinate is obtained after repeated r rounds of above steps; and finally a weighted algorithm is used to calculate a positioning coordinate. The method of the invention solves the problems in the prior art of low positioning precision, low reliability and high cost, substantially reduces effects of the environment interference factor, and is suitable for the development trend of the indoor wireless positioning.

The embodiment of the invention provides an information transmission and data processing method, device and system and a storage medium. In the embodiment of the invention, for the target informationdisplayed on a screen of the second terminal, when the first terminal needs the target information, the first terminal is matched with the second terminal; a screen of the second terminal is capturedby the second terminal; a screenshot operation of a second terminal is taken as a basis, information capable of indicating the area position of the target information on the screen of the second terminal and cross-screen transmission are combined, so that the first terminal can finally obtain the target screenshot containing the target information; compared with the mode of directly shooting thescreen of the second terminal, the influence of interference factors such as screen refresh frequency on the screenshot is relatively small, the quality of the screenshot is relatively high, and the definition of the information obtained by the first terminal is relatively high.

The invention discloses a registering method used for correcting wavelength drift of satellite hyperspectral data. The method is mainly used for carrying out wavelength registering on the satellite hyperspectral data with wavelength drift. The method is based on simulation reference data consistent with the baseline characteristics of the satellite spectral data. The method comprises the steps that the reference peak position of a satellite spectrum and a simulation spectrum is positioned by a trigonometric function of specific spectral resolution; initial registering is carried out; and through accurate inversion of a wavelength correction factor, a wavelength registering model is combined for fine registering. According to the invention, the method can automatically, accurately, stably and quickly acquire the wavelength drift of the satellite hyperspectral data without manual intervention or constructing a lookup table; the wavelength error of satellite observation is corrected; and the application value of the hyperspectral data in the fields of high precision atmospheric gas component detection and the like is improved.

The invention relates to a hydraulic impactor. The hydraulic impactor comprises a body, a drag device, a pressure isolation barrel, an impact body and an anvil, wherein the body is a hollow cylinder, the drag device is fixed at the upper part of the body, the anvil is fixed at the lower part of the body and extends into the body, the pressure isolation barrel is arranged between the anvil and the drag device, and the lower end of the pressure isolation barrel is meshed with the upper end of the anvil; the impact body is communicated with an inner cavity of the anvil, a nozzle is fixed in the anvil, the impact body is arranged in the pressure isolation barrel, the outer wall of the impact body is matched with the inner wall of the pressure isolation barrel, the lower end surface of the impact body is matched with the upper end surface of the anvil, and the impact body is restrained to perform reciprocating motion; a downward bulge is arranged in the center of the drag device and adopts a cylinder and cone combined body, the impact body is a barrel-shaped body provided with a step outside, and the bulge of the drag device corresponds to an upper end port of the impact body. Hydraulic energy is used sufficiently, a drill bit is enabled to generate axial vibration during rotation work, and the rock breaking efficiency is increased.

The invention provides a coal cutter hydraulic support side guard state monitoring method and device, and the method comprises the steps: carrying out the defogging of a continuous monitoring image of a coal cutter hydraulic support side guard, and carrying out the edge detail information recovery of the defogged monitoring image, and obtaining a fusion image; identifying a face guard plate area in the fused image through a preset target detection model to obtain a target image; the face guard in the target image is recognized to obtain the angle of the face guard, and the state of the face guard is determined according to the angle, the state of the face guard near the coal mining machine can be monitored in real time by preprocessing the monitoring image and recognizing the image, and the monitoring effect and reliability are improved.

The invention discloses an air leakage position detection device for an engine cylinder. The detection device comprises a smoke generation device and a smoke detection device, and is characterized inthat the smoke generation device comprises a smoke box and a pressure measurement meter, an outlet of the smoke box is sequentially connected with the pressure measurement meter and the cylinder, andsmoke can be input into the cylinder; the smoke detection device comprises an endoscope, an LED lamp and a buzzer alarm, and the smoke detection device can extend into the air cylinder and is used fordetecting the smoke condition in the air cylinder and the aging or cracking condition of all parts; the detection device designed by the invention can realize rapid detection of in-cylinder leakage.

The embodiment of the invention discloses a newspaper information recommendation method and device and a computer readable storage medium. The method comprises the steps of determining M interestingness of a user to M attribute values under preset house attributes according to user data of the user, wherein M is an integer greater than or equal to 2; according to the M attribute values and the M interestingness degrees, determining reference offer information corresponding to the preset house attribute, wherein the reference report information comprises P attribute values, P is an integer greater than or equal to 1, and P is less than M; and when house offering of the user is carried out, recommending the reference offering information. According to the embodiment of the invention, the report efficiency and the report accuracy can be improved.

The invention provides an impregnation automatic control system in production of short fiber stock solution viscose. The conventional automatic control system is improved and optimized, and a redundant process control system is constructed by redundant process control software, so that the impregnation automatic control system in the production of the short fiber stock solution viscose is established. The concentration of pulp is controlled by controlling the feeding speed and addition amount of the pulp and the addition amount of impregnation alkali; a feeding system comprises a pulp feeder and an impregnation alkali feeding pipe which are provided with devices for controlling the feeding amount of the pulp and the impregnation alkali; and the concentration of the pulp has been adjusted during feeding, so that the influence of other interference factors in the subsequent impregnation process is greatly reduced.

The invention discloses an aircraft cabin door jump prediction method and device, equipment and a medium. The method comprises the steps of obtaining a first feature point corresponding to a skeleton and a second feature point corresponding to a cabin door; acquiring a first shape error corresponding to the framework and a second shape error corresponding to the cabin door; according to the second feature point, obtaining a rotation speed vector and a normal vector corresponding to the second feature point; according to the rotation speed vector and the normal vector, obtaining an order difference change rate at the second feature point; and according to the first shape error, the second shape error and the order difference change rate, obtaining cabin door order difference prediction data. The method is based on the actually measured data of the aircraft cabin door and the skeleton, predicts the jump data in combination with the motion relation, more truly reflects the cabin door jump condition, does not need to assemble the cabin door on the skeleton for measurement, avoids repeated assembly, measurement and adjustment of the cabin door, is high in accuracy, and effectively improves the cabin door jump data measurement efficiency.

The invention relates to a solar cell panel RGB image identification method and device based on dual-light integration, and the method comprises the steps: obtaining an RGB image and a thermal imagingimage of a photovoltaic power station through a dual-light integration camera, processing the RGB image of the photovoltaic power station, and obtaining a solar cell panel surrounding frame; classifying the solar cell panel bounding boxes according to the mean value of the three-channel pixel values of each solar cell panel bounding box and a preset pixel threshold value, and combining the thermal imaging image of the photovoltaic power station and the target credibility of the related solar cell panel bounding boxes; and judging whether each solar cell panel surrounding frame surrounds the solar cell panel RGB image or not. According to the method, the advantages of the RGB image and the thermal imaging image are combined, the RGB image and the thermal imaging image are taken, the RGB image of the solar cell panel can be accurately and reliably recognized, the influence of interference factors is greatly reduced, and the recognition accuracy of the image of the solar cell panel is improved.

The invention discloses a method for rapidly detecting retrovirus by a cell ultrathin section electron microscope. The method comprises the following steps: 1) collecting and fixing of a sample; 2) uranium acetate block dyeing; 3) dehydrating, permeating and polymerizing; 4) slicing, dyeing and detecting through a transmission electron microscope. Compared with a traditional method, the method hasthe advantages that the sample preparation efficiency is greatly improved, the traditional 5-7-day sample preparation period is shortened to 1 day, and an ultrathin slicing technology for rapidly detecting viruses becomes possible. Compared with a traditional virus detection method, the optimized ultrathin section electron microscope technology for detecting viruses has the advantage that the specificity, accuracy and detection efficiency of virus detection are greatly improved.

The invention discloses an edge rolling spinning pneumatic boosting system for coin making. The edge rolling spinning pneumatic boosting system comprises a machine body, a center disc and a check ring are arranged on the machine body, the center disc is connected with a corresponding rotation driving device, a plain edge gauge is arranged on the periphery of the center disc, a molding channel for spinning machining of a coin blank cake is formed between the center disc and the plain edge gauge, a cake conveying rotary disc is arranged at the bottom of the check ring, and a coin storage groove is jointly formed by the check ring and the cake conveying rotary disc. The cake conveying rotary disc is connected with a corresponding rotation driving device, a cake conveying outlet is formed in the lateral face of the check ring and communicated with the molding channel through a cake conveying sliding way, pneumatic spraying nozzles are formed at the cake conveying outlet of the check ring and the interior of the cake conveying sliding way and communicated with air sources through corresponding pipes, and the air spraying direction of the pneumatic spraying nozzles is coincident with the movement direction of the coin blank cake. By means of the edge rolling spinning pneumatic boosting system, two-section type dual boosting is carried out at the position of the cake conveying outlet and the position of the cake conveying sliding way, so that the edge rolling efficiency is improved by more than two times, and the edge rolling speed is stable.

The invention discloses a parameter determination method and a parameter determination device, and relates to the technical field of medical data processing. The parameter determination method comprises the steps that a first parameter set corresponding to a to-be-tested body is determined based on a first time interval, the first time interval comprises a night interval, and the first parameter set comprises a first heart rate characterization parameter and a first heart rate variability characterization parameter; based on a second time interval, a second parameter set corresponding to the to-be-tested body is determined, the second time interval comprises a daytime interval, and the second parameter set comprises a second heart rate characterization parameter and a second heart rate variability characterization parameter. The influence of interference factors in the parameter measurement process is reduced, and the purpose of improving the accuracy of the obtained parameter set and the comparability along with time change is achieved. In addition, when the first parameter set and the second parameter set determined by the invention are used for representing the level and/or the state of the neurohormone, the representation accuracy and the comparability along with time change can be effectively improved.

The invention relates to a microbial electrochemical analysis device and an analysis method thereof, and belongs to the technical field of microbial electrochemical analysis. The invention discloses a microbial electrochemical analysis device, which is characterized in that an air cathode is arranged on one side of an electrolytic tank cavity, meanwhile, the device also comprises a counter electrode and a reference electrode, the device can be freely switched between a microbial electrode three-electrode analysis mode and a two-electrode maintenance mode, and a microbial electrode signal is accurately measured through the three-electrode mode; the long-term maintenance requirement of the microbial electrode is met through a two-electrode mode, and the defect that a traditional microbial battery structure cannot meet two requirements at the same time is overcome. The invention also discloses a microbial electrochemical test analysis method, which is characterized in that the microbial electrochemical analysis device disclosed by the invention is connected with an electrochemical workstation, so that the steady-state polarization curve of the microbial electrode and the resistance distribution analysis of the microbial electrode are realized; the problems of accurate characterization and efficient analysis of the performance of the microbial electrode are solved.