全景鱼眼摄像机

Optical fiber composite overhead ground wire

The invention belongs to the technical field of power cables, and particularly relates to an optical fiber composite overhead ground wire, which is provided with an optical unit and at least three aluminum-clad steel wires positioned outside the optical unit, and is characterized in that the optical unit consists of a loose tube and at least one optical communication component positioned in the loose tube; a spacing part is arranged between the optical unit and the aluminum-clad steel wires, the spacing part is formed by enclosing arc-shaped sections with the same number as the aluminum-clad steel wires, the openings of arc-shaped bays of the arc-shaped sections face outwards, the arc-shaped bays are spirally arranged around the axis of the spacing part, and the bottom of each arc-shaped section is provided with an extending part for separating the loose tube from the arc-shaped section. The outer wall of the loose tube is attached to the extending part, and the aluminum-clad steel wires ...

Particle trap regeneration method and device, storage medium and controller

The invention belongs to the technical field of vehicle engineering, and particularly relates to a particle trap regeneration method and device, a storage medium and a controller. The particulate trap is reversely installed and is in butt joint with the rotary purging component, and regeneration of the particulate trap is achieved by externally hanging the particulate trap on an engine tail gas pipeline. Wherein in order to improve the regeneration effect, a cyclic or intermittent variable working condition control process can be introduced; pulsating tail gas output is introduced by setting and switching the first type of working conditions and/or the second type of working conditions; different excitation states of the tail gas can be realized by adopting a high-load high-rotating-speed working condition and a low-load low-rotating-speed working condition respectively; in addition, a preset lean-burn working condition and high-temperature tail gas configuration can be combined, so that ...

Power grid stability analysis system based on swarm intelligence algorithm

The invention relates to the technical field of power grid analysis, in particular to a power grid stability analysis system based on a swarm intelligence algorithm, which comprises a data acquisition part, a data conversion part, a steady state calculation part and a stability analysis part, the data acquisition part is configured to be used for acquiring equipment parameters of each piece of equipment of a power grid and operating parameters of each piece of equipment; the steady-state calculation part is configured to be used for establishing a steady-state space and calculating to obtain an individual optimal position and a global optimal position of each conversion data group in the steady-state space; and the stability analysis part is configured to perform difference analysis on the individual optimal position of the standard data set and the individual optimal positions of all the transformation data sets, compare a final difference value with a preset rated stability threshold ...

Preparation method of novel high-performance composite reverse osmosis membrane

The invention provides a preparation method of a novel high-performance composite reverse osmosis membrane, which comprises the following steps: preparing a support layer solution, preparing a support layer membrane, preparing an amine solution, preparing nano graphene oxide, forming a graphene oxide sheet layer on the surface of the support layer membrane by adopting an electrostatic spraying mode, and coating the ammonium solution by adopting a slit coating mode to obtain the novel high-performance composite reverse osmosis membrane. And forming a layer of homogeneous membrane on the membrane of the supporting layer, and curing to obtain the composite reverse osmosis membrane. In conclusion, the invention prepares the novel high-performance composite reverse osmosis membrane with high desalination rate, high water flux and strong anti-pollution capability, and solves the technical problems of low desalination rate, small water flux and no pollution resistance of the reverse osmosis membrane ...

Field crested ibis real-time detection method based on YOLOv5-CBAM

The invention discloses a field crested ibis real-time detection method based on YOLOv5-CBAM, and relates to the technical field of field crested ibis detection. According to the invention, a YOLOv5-CBAM network model is constructed so as to carry out real-time detection on the wild crested ibis. Wherein the YOLOv5-CBAM network model is added with a Stem module and a CBAM attention module, and the stable YOLOv5-CBAM network model is obtained after training. According to the detection method, the advantage of high detection speed of the YOL0 algorithm is reserved, and the detection accuracy and the detection effect are remarkably improved on the basis.

Method for standardizing master station monitoring information based on DM database

A method for standardizing master station monitoring information based on a DM database comprises the following steps: S1, backing up commercial database information, exporting an information point table of an original commercial database, and storing the information point table as backup point table information; s2, inputting a variable name and writing a script output command; s3, operating each script output command written in the step S2 by using a DM database statement to change the information name of the information point table; s4, exporting the running log in the step S3 in real time; s5, looking up the running log, and judging whether each piece of point table information in the running log is successfully modified or not; for each piece of successfully modified point table information, the point tables are downloaded from the main server and the standby server respectively, and the point tables of the main server and the standby server are successfully updated; and S5, for each ...

Cable cutting device

The invention belongs to the field of cable cutting tools, and particularly relates to a cable cutting device which is provided with a workbench and is characterized in that the workbench is provided with an outer-layer measuring component and an inner-layer measuring component which is coaxial with the outer-layer measuring component and is sleeved with the outer-layer measuring component; the outer wall of the outer layer measuring part and the outer wall of the inner layer measuring part are provided with an annular cable groove and a longitudinal feed groove, the top of the inner layer measuring part is provided with a rotatable feed arm, and the feed arm is provided with a slidable cutter. The cable cutting device has the advantages of being short in length, small in size, capable of cutting multiple cables at the same time, capable of cutting the cables with the fixed length and capable of cutting the cables with different outer diameters, convenient to use, foldable in cutter, capable ...

High-thermal-conductivity copper-aluminum composite material as well as preparation method and application thereof

The invention discloses a high-thermal-conductivity copper-aluminum composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: respectively carrying out surface pretreatment on a copper plate and an aluminum plate; the pretreated copper plate and the pretreated aluminum plate are subjected to surface sputtering activation at the temperature of 250-400 DEG C, the applied voltage is 400-800 V, and an activated copper plate and an activated aluminum plate are obtained; a copper target and a silver target are adopted for conducting sputtering deposition on the activated copper plate and the activated aluminum plate respectively, the temperature ranges from 250 DEG C to 400 DEG C, the applied voltage of the copper target ranges from 800 V to 850 V, the applied voltage of the silver target ranges from 600 V to 650 V, and a deposited copper plate with a copper-silver alloy layer and a deposited aluminum plate with a copper-silver ...

Continuous preparation method and device of polymer film

The invention relates to the technical field of high-molecular polymer preparation, in particular to a continuous preparation method and device of a polymer film. The continuous preparation method of the polymer film comprises the following steps: S1, continuously injecting a polymer solution onto the liquid level of a coagulating bath to cure into the polymer film, and driving an organic solvent in the polymer solution to quickly diffuse into the coagulating bath by the difference between the concentration of the organic solvent in the coagulating bath and the concentration of the organic solvent in the polymer solution, allowing the polymer solution to spread spontaneously and directionally on the level of the coagulation bath, and promoting formation of a polymer-rich phase in the polymer solution on the level of the coagulation bath so as to rapidly cure to form a polymer film; s2, the polymer film is extracted through a first rolling shaft and a second rolling shaft, then dried through ...

Assembly structure ribbon optical cable, butterfly-shaped optical cable and cable

The invention belongs to the technical field of cables, and discloses a ribbon optical cable with an assembly structure, which is provided with at least one protective layer and is characterized by further comprising a cable core, the cable core is provided with a first subunit or a plurality of first subunits, each first subunit comprises two assembly parts capable of being spliced into a structure with an I-shaped cross section, and the two assembly parts are arranged in the protective layer. The I-shaped structure is provided with a first accommodating cavity and a second accommodating cavity, and a plurality of light-guide fiber belts are arranged in the first subunit; the light-guide fiber belts are distributed in the first containing cavity and the second containing cavity in a stacked mode, and the cable core is coated with at least one protective layer. The invention further discloses a butterfly-shaped optical cable and an electric cable. The optical fiber has the main beneficial ...

Power consumer behavior analysis method and system

The invention belongs to the technical field of power control, and relates to a power user behavior analysis method and system, and the method comprises the following steps: calculating an associated user set corresponding to a target user according to the association degree; calculating the electricity consumption of the target user in the target time period according to the associated user set; and distributing power to the target user according to the power consumption of the target user in the target time period. According to the method, the power consumption of the target user in the specific time period can be predicted more accurately by analyzing the power consumption behavior of the user set with high association degree with the target user; according to the predicted power consumption, accurate power distribution of the target user can be realized, so that waste of park power resources is avoided, and through accurate prediction and power distribution, the operation pressure of ...

METHOD AND DEVICE FOR SPECIFICALLY CAPTURING CIRCULATING TUMOR CELL BY UTILIZING SURFACE OF FRACTAL STRUCTURE AND APPLICATION THEREOF

The present invention provides a method and a device for specifically capturing a circulating tumor cell by utilizing a surface of a fractal structure, and an application thereof. According to the present invention, a surface of a substrate is formed as a surface with a fractal structure; before being put into a cell culture plate, a specific antibody on a circulating tumor cell surface is fixed on the surface with the fractal structure; before being put into a cell culture incubator, a sample containing the circulating tumor cell to be captured is dropwise added to the surface of the specific antibody on the circulating tumor cell surface. Due to the synergetic effect between the specific antibody on the circulating tumor cell surface and the fractal structure, the circulating tumor cell in the sample is specifically captured. The capture method based on the surface with the fractal structure according to the present invention can be used to capture cells associated with cancer.

Connector structure for electrical equipment

The invention belongs to the technical field of power connectors, and particularly relates to a connector structure between power equipment, which comprises a female plug, a male plug and wiring assemblies, the male plug is matched with the female plug in a plugging way, and the non-plugging ends of the male plug and the female plug are respectively connected with a plurality of wiring assemblies through electric wires; in the wire connecting process, the two steps of wire peeling and wire pressing can be achieved through one connecting assembly, and the connecting process is simple; and compared with the traditional peeling and tightening which need to be operated separately, the wiring efficiency is greatly improved. According to the invention, the positions of the mounting sliding sleeve and the cutting disc can be automatically adjusted according to wires with different thicknesses, namely, the distances from the peeled, pressed and fixed positions of the wires with different thicknesses ...

Multifunctional combined mobile law enforcement method and device

The invention discloses a multifunctional combined mobile law enforcement method and device, and relates to the technical field of mobile law enforcement, and the device comprises a law enforcement terminal, a peripheral module, a display module, a signal transmission module and a fixed module. The law enforcement terminal is in signal connection with the peripheral module through the signal transmission module; the law enforcement terminal is fixedly connected with the peripheral module through the fixing module; data acquired by the peripheral module are transmitted to the law enforcement terminal through the signal transmission module, and the data are transmitted, stored, researched, judged and analyzed through the law enforcement terminal and displayed on the display module. The invention provides a multifunctional combined mobile law enforcement method and device, which takes a 5G mobile law enforcement terminal as a carrier, integrates a digital talkback module, an on-duty law enforcement ...

Priority distribution algorithm for multiple mobile robots

The invention belongs to the technical field of robots, and particularly relates to a multi-mobile-robot priority distribution algorithm which comprises the following steps: S1, giving an initial random priority; s2, performing path planning on each robot based on a genetic algorithm; s3, performing constraint level classification according to a robot path planning result; s4, the priority sequence of the highest constraint group is exchanged; and S5, exchanging a priority sequence for the general constraint group according to the FSUM. The invention provides a constraint-based priority ranking algorithm, which comprises the following steps of: firstly, searching a priority ranking space needing to be exchanged according to a constraint relationship among multiple robots, exchanging a corresponding priority sequence, and finding out the most suitable priority ranking through iteration; ...

Charging information processing method and device, medium and charging management system

The invention belongs to the technical field of intelligent vehicles, and particularly relates to a charging information processing method and device, a medium and a charging management system. Data acquisition and information processing are performed on the charging process of the battery pack under the intervention of the heat exchange system through real-time temperature detection and comparison processes; the method comprises the following steps: combining a temperature rise curve of a battery pack and a first change sequence given by a charging current map MAP, synthesizing a current state of charge (SOC), a target value SOCt of the SOC and/or a request current in the current map MAP, and obtaining a second change sequence corresponding to charging remaining time of the first change sequence and process parameters; in the dynamically updated temperature control process, estimating the residual charging time; the method and the product can be applied to a charging management system ...

Optical fiber ribbon optical cable with at least two loose tubes and power cable

The invention belongs to the field of optical cables, and discloses an optical fiber ribbon optical cable with at least two loose tubes, which is provided with a cable core (1) and a protective layer (4), and is characterized in that the cable core is formed by combining n first-class loose tubes (2) and n second-class loose tubes (3); the cross sections of the first type of loose tubes and the second type of loose tubes are right triangles, the length of a first right-angle side (22) is equal to the length of a third right-angle side (32), and the sum of the length of a second right-angle side (23) and the length of a fourth right-angle side (33) is equal to the length of a first bevel edge (24); the cross section of the cable core is a regular n-polygon, the vertexes where all the second right-angle sides (23) intersect with the first bevel edges (24) are located in the center of the cable core, n is larger than or equal to 5, and n is a positive integer. The invention also discloses ...

Limb contact behavior identification method and device and electronic equipment

The invention provides a limb contact behavior identification method and apparatus, and an electronic device, belongs to the technical field of video monitoring, and solves the problems of low identification precision and slow speed in the prior art. The method comprises the following steps: detecting a video frame image by using an OpenPose model, and obtaining human skeleton key points and positions of a human target; based on the key points of the human body skeleton and the position, carrying out human body target tracking by utilizing a DeepSort algorithm, and obtaining a human body skeleton time sequence diagram of the human body target; acquiring a gathering area of the human body targets by using a target frame gathering algorithm; utilizing an ST-GCN network model to identify a limb contact behavior in the human skeleton time sequence diagram, and obtaining an identification result; and performing comprehensive judgment on the identification result and the judgment result of the ...

Controller design method of SIDOBuck-Boost converter based on cascade expansion state observer

The invention discloses a controller design method for an SIDO Buck-Boost converter based on a cascade expansion state observer, and the method comprises the steps: employing ADRC to respectively fit a main path and branches of the SIDO Buck-Boost converter, reducing the cross impact between the branches, designing the cascade expansion state observer CESO to carry out the estimation of a system state vector and total disturbance, and carrying out the control of the system state vector and total disturbance. According to the method, the observation residual error caused by incomplete estimation of the traditional ESO is eliminated, the estimation precision of the observation value is further improved by utilizing the inhibition effect of CESO on the high-frequency noise of a circuit sensor, and then the observation value acts on the active-disturbance-rejection state error feedback control rate so as to improve the transient performance of the system. According to the controller designed ...

GIS equipment room environment monitoring device

The invention relates to the technical field of monitoring, in particular to a GIS equipment machine room environment monitoring device which comprises a machine room image acquisition device, a machine room sensor array, a machine room data acquisition point analysis device, a machine room data analysis device, an equipment operation data analysis device and a machine room monitoring and early warning device. The machine room image acquisition device is configured to acquire an image of the machine room according to a set time period when the machine room runs and equally divide the acquired image to obtain sub-images, and each sub-image corresponds to an area in the machine room; the machine room sensor array comprises a plurality of sensor groups, and each sensor group corresponds to one sub-image and is arranged in an area corresponding to the corresponding sub-image in a machine room. According to the method, the monitoring efficiency is improved through a hierarchical monitoring mode ...

Single image defogging method based on attention mechanism

The invention discloses a single image defogging method based on an attention mechanism, and relates to the technical field of image processing. The method comprises the following steps: preprocessing a foggy image; then, a DRC-DehazeNet defogging network is established; designing a loss function, and training a network model; and finally, the effectiveness of the DRC-DehazeNet network is tested. According to the invention, an end-to-end algorithm structure is adopted, so that the defect of manual feature extraction is overcome, and a defogged image is directly output by a network; the dense residual attention module is designed, it is guaranteed that deeper feature information can be learned through the defogging method, the gradient disappearance phenomenon is relieved, and the quality of the defogged image is improved.

Design method for improved sliding-mode active-disturbance-rejection controller of optical storage direct-current micro-grid based on hybrid energy storage

The invention discloses a hybrid energy storage-based improved sliding-mode active-disturbance-rejection controller design method for an optical storage direct-current micro-grid, and the method comprises the steps: employing dual-loop control for a controller, introducing a second-stage observer for observation compensation, and enabling the controller to be in dual-loop control; an estimated value of the cascade observer on the total disturbance is fed back to the compensator for elimination; and non-singular fast terminal sliding mode control is designed for optimization, high and low frequency components are respectively compensated by using the characteristics of the hybrid energy storage unit, so that the response speed of the system is improved, and the design of the controller is completed. According to the improved sliding mode active disturbance rejection controller designed by the invention, the observation precision is improved and the control performance is also enhanced through ...

Bird repelling device for electric power tower

The invention belongs to the technical field of power equipment bird repelling, and particularly relates to a power tower bird repelling device which is provided with a base and at least one bird repelling component, and is characterized in that the base is composed of an annular rail, a supporting seat and a hoop, the cross section of the annular rail is circular, and a first connecting rod is arranged in a ring of the annular rail; the end point of the first connecting rod is fixedly connected with the annular rail, the supporting base is fixedly connected below the first connecting rod, and a hoop is fixed to the bottom of the supporting base. The bird repelling component is provided with a C-shaped sliding component capable of sliding along the annular track, the annular track is sleeved with the sliding component, a plurality of bird repelling thorns are fixedly arranged at the top of the sliding component, a windward plate is arranged on the sliding component, and a gravity center ...

Deicing robot for power line with elevated structure and deicing method thereof

The invention discloses an overhead structure power line deicing robot and a deicing method thereof, and belongs to the technical field of overhead line deicing, the overhead structure power line deicing robot comprises a case, and the upper end of the case is provided with an obstacle avoidance type driving assembly; the obstacle avoidance type driving assembly comprises three groups of direction adjusting assemblies, two groups of driving assemblies and a middle auxiliary rolling assembly; a beating assembly for beating and deicing the overhead line of the power system and a position sensing assembly for sensing an obstacle are mounted on the direction adjusting assembly on the left side; and a hot air deicing assembly for carrying out hot air deicing on the power system elevated line subjected to primary deicing is mounted on the direction adjusting assembly in the middle. By means of the mode, the cable deicing device can avoid obstacles when moving, meanwhile, ice blocks on a cable ...

Intelligent power distribution network fault positioning method and system

The invention provides an intelligent power distribution network fault positioning method and system, and relates to the technical field of power distribution networks, and the method comprises the steps: automatically adjusting a dynamic factor according to the real-time electrical parameters, environmental parameters and historical fault data of a power distribution network; fusing the dynamic factor with historical fault data and a topological structure to form a multi-dimensional fault positioning model; according to the multi-dimensional fault positioning model, predicting a fault position to obtain a prediction result, and judging the confidence coefficient of the prediction result; and determining the fault position of the power distribution network according to the prediction result and the confidence coefficient corresponding to the prediction result. According to the method, the accuracy of fault positioning is effectively improved by forming the multi-dimensional fault positioning ...

Composite tracking method for maximum power point of photovoltaic system

The invention discloses a composite tracking method for a maximum power point of a photovoltaic system, which is characterized in that a boost chopper circuit is connected with a photovoltaic cell and a load to realize MPPT control, an adaptive thermal motion coefficient is introduced into an RDPSO random drift particle swarm algorithm, a globally optimal solution is calculated based on the ARDPSO adaptive random drift particle swarm algorithm, and meanwhile, the maximum power point of the photovoltaic system is tracked. And designing an STMC terminal sliding mode controller through a boost chopper circuit to correct the global optimal solution of the algorithm, and finally outputting the maximum power point of the photovoltaic system to realize the composite tracking of the maximum power point of the photovoltaic system. According to the invention, the power supply reliability of the photovoltaic system can be effectively improved, and the energy utilization rate of the photovoltaic system ...

Anti-bird device capable of swinging

A swingable anti-bird device comprises a mother shielding assembly and telescopic son shielding assemblies which are symmetrically arranged at the two ends of the mother shielding assembly in a split mode. The female shielding assembly is of a semi-arc sleeve structure with an opening in the lower end. The two sides of the opening end of the female shielding assembly are folded inwards to form female inwards-concave baffles. Each sub-shielding assembly comprises a cross arm fixing assembly and a semi-arc-shaped shielding sleeve with an opening in the lower end; the cross arm fixing assembly comprises a base and a supporting frame installed on the base. A step-shaped groove is formed in the lower end of the base in a concave mode, the step-shaped groove comprises a large step part and a small step part located at the lower end of the large step part, and a magnet is embedded in the large step part; the supporting frame comprises a supporting cylinder, the lower end of the supporting cylinder ...

Error correction and characteristic parameter identification method for analyzing Preisach hysteresis model under variable temperature condition

The invention discloses an analysis Preisach hysteresis model error correction and characteristic parameter identification method under a variable temperature condition. The method comprises the following steps: step 1, establishing an analysis Preisach model considering a reversible component; 2, introducing a particle swarm optimization algorithm, and carrying out feature parameter identification on an analytic Preisach model based on a Lorentz function at normal temperature; 3, putting forward temperature error correction formats of the characteristic parameters and the reversible components at the normal temperature; 4, the model characteristic parameters and the reversible components at the normal temperature are corrected, and an analytic Preisach hysteresis model based on the Lorentz function under the variable-temperature condition is established. The method has the advantages that the influence rule of each characteristic parameter of the analytic Preisach model based on the Lorentz ...

Preparation method of novel graphite carbonitride composite nanofiltration membrane

The invention provides a preparation method of a novel graphite carbonitride composite nanofiltration membrane. The preparation method comprises the following steps: preparing a first graphene oxide dispersion liquid; adding melamine into the first graphene oxide dispersion liquid, uniformly stirring, heating, cooling and grinding to obtain GOx/g-C3N4 powder doped with graphene oxide; preparing a second graphene oxide dispersion liquid; deionized water is added into the GOx/g-C3N4 powder, and a GOx/g-C3N4 dispersion liquid is prepared; and uniformly mixing the second graphene oxide dispersion liquid and the GOx/g-C3N4 dispersion liquid, placing the mixture on a cellulose acetate substrate, carrying out vacuum filtration to form a membrane, and drying to obtain the graphite carbonitride composite nanofiltration membrane. In conclusion, the graphene oxide is used as a functional material and is embedded into the polyamide active layer, so that the water permeability of the composite nanofiltration ...

Improved lightweight YOLOv5s field crested ibis real-time detection method

The invention discloses an improved light-weight YOLOv5s field crested ibis real-time detection method, and relates to the technical field of field detection of crested ibis. The method comprises the following steps: performing YOLO format labeling on collected crested ibis image data to obtain a data set, and then dividing the data set into a training set and a test set; a deep learning framework pytorch is used to construct a network model, training parameters are modified, the training set is used for training, and the test set is used for network performance test to obtain a tested network model; and finally, testing the wild crested ibis by utilizing the trained network model. The method is a lightweight crested ibis detection algorithm, and the calculation complexity of the model is greatly reduced while the high model prediction precision can be kept.

Cable rack body hoisting equipment and use method thereof

The invention discloses cable rack body hoisting equipment and a using method thereof, and belongs to the technical field of cable rack hoisting equipment, the cable rack body hoisting equipment comprises a material box used for containing spacers, and the material box is installed on a width-adjustable rack of which the overall width can be adjusted according to the cable spacing width; the width-adjustable rack is mounted on a cable through a roller assembly; the width-adjustable rack is provided with a driving assembly which is used for bearing constructors and driving the width-adjustable rack, the roller assembly and the locking assembly to move so as to install spacers at all positions. And a locking assembly is mounted on the driving assembly. By means of the mode, the width-adjustable rack can be well installed according to the widths of cables with different widths, so that the adaptability to the widths of the cables with different intervals is guaranteed; and meanwhile, when ...

Preparation method of self-supporting ultrathin polymer film

The invention provides a preparation method of a self-supporting ultrathin polymer film. The preparation method comprises the following steps: S1, preparing a dendritic micro-fluidic chip, wherein the included angle between outlets of two micro-channels is an acute angle; s2, continuously supplying a polymer solution into the micro-fluidic chip, wherein the polymer solution generates continuous laminar flow after passing through an outlet of the micro-fluidic chip; and curing the formed continuous laminar flow in a coagulating bath to obtain the ultrathin polymer film. In conclusion, the continuous laminar flow of the polymer film can be simply and conveniently realized, the prepared self-supporting polymer film is good in uniformity, and the thickness can be several microns or even nanoscale.