58results about How to "With connectivity" patented technology

The invention discloses an intelligent oral cavity cleaning device. The intelligent oral cavity cleaning device comprises a shell, a cleaning unit, a handheld unit, a power-driven mechanism, a circuit board, a cleaning component, a battery, a network connection circuit, a light-emitting element, a light guide component, an image collecting device and a sound playing device; the intelligent oral cavity cleaning device and other intelligent devices can build wireless network connection for conducting data transmission, or the intelligent oral cavity cleaning device can have access to the internet; images obtained by the image collecting device can be displayed on display screens of the other devices, so that parts difficult to clean can be cleaned more effectively; voice or music can be played through the sound playing device, single-color or colorful lamplight can be emitted through the light-emitting element, and the intelligent oral cavity cleaning device is more attractive and has interestingness.

The invention discloses a smart park management system based on the Internet of Things and the Internet technology. An Internet of Things application platform is specifically divided into data access(communication), data processing (computer) and data application (electronics). An Internet of Things-based intelligent park management system integrates technologies in the three fields, realizes thesystem concept of Internet of Things connection on the basis of the Internet, and provides a unified application and management platform for the intelligent park, and the Internet of Things is connected through the Internet of Things or virtual interconnection is realized between equipment and the Internet. On the basis of an Internet of Things data service platform, a solution for meeting personalized demands of a user is provided. Meanwhile, the intelligent management system of the building is integrally planned; therefore, introduction of the Internet of Things technology into park construction will certainly be the development trend of future intelligent parks, while an Internet of Things application platform provides a unified application and management platform for the intelligent parks from three aspects of data access, data processing and data application, and plays a greater role in resource configuration rate and utilization.

The invention relates to a position privacy protection method based on a road network in continuous position service. The realization steps mainly include two stages: an initialization stage: during the system initialization, an anonymous server firstly performs zoning processing on a service area, and then, a public track library is constructed for each zone according to the road network information; an anonymous processing stage: when a user performs continuous inquiry, firstly, l-1 tracks with the shortest distance are picked out from the track library to form an optimum l- covering track; then, each track in the optimum l- covering track is subjected to sampling processing according to the position of the inquiry in each time; a minimum covering region capable of covering all the tracks is constructed; in addition, the inquiry user ID (identification) is subjected to anonymous mapping. The method has the advantages that the position and track association speculation attack of a typical position k- anonymous mechanism in the continuous position service can be resisted; in addition, the track l diversity protection can be provided under the condition of using the minimum inquiry region.

The invention discloses a point-based iterative remote sensing image road extraction method. Compared with on-site collection, automatic extraction of the road centerline map from the remote sensing image is higher in efficiency and lower in cost. In order to improve road connectivity and keep accurate alignment between a road map and a real road center line, the invention provides a point-based iterative road map exploration method using segmentation clue guidance, variable step length and trajectory exploration. Wherein the segmentation clues are embodied as follows: center line segmentationand intersection point segmentation are used as supervision information in the neural network; wherein the variable step length is embodied in that an adjustable step length training neural network is used at a road intersection point, a road end point and a connection point, and the trajectory exploration method is embodied in that a next drop point set starting from an image center point according to a time sequence is obtained by utilizing one-time remote sensing image input.

The invention discloses a tissue engineering scaffold with a vascular structure and a preparation method thereof. The preparation method comprises the following steps: S1, establishing a three-dimensional stereoscopic network model, and performing 3D printing to obtain a sugar scaffold of a three-dimensional network structure; S2, immersing the sugar scaffold printed in S1 into an ethanol mixed solution of a calcium salt, and obtaining a sugar scaffold loaded with the calcium salt on the surface after ethanol volatilization; S3, filling modified light cured polymers in the sugar scaffold in the S2, and performing light curing to form a cured hydrogel scaffold; and S4, placing the cured hydrogel scaffold in water, PBS or a cell culture medium to remove the sugar scaffold, thereby obtainingthe tissue engineering scaffold with the bionic vascular network. The internal vascular structure and the like have integral connectivity, high precision and excellent mechanical strength and mechanical property, living cells can be directly loaded while the bionic vascular network and the tissue engineering scaffold are molded, and the cell viability is maintained for a long time.

The invention discloses an ecological landscape retaining wall which comprises a frame beam, vegetation growing grooves and a slope surface supporting, retaining and inverse filtering structure. The frame beam is of a frame structure composed of longitudinal beams and cross beams. The slope surface supporting, retaining and inverse filtering structure is arranged on the reverse side of the frame structure, and the vegetation growing grooves are formed in the frame beam and composed of oblique partition plates arranged between the frame beam longitudinal beams and the slope surface supporting,retaining and inverse filtering structure. The vegetation growing grooves are filled with filled earth and provided with drain holes. Ecological landscape plants are planted in the vegetation growinggrooves to green a slope body. The vegetation growing grooves penetrate through the slope surface supporting, retaining and inverse filtering structure to form water and nutrient channels with the slope body, vegetation growth is ensured, and the vegetation survival rate is greatly increased. The bottoms of the vegetation growing grooves are provided with inverse filtering layers and the drain holes, wall back earth body accumulated water is effectively discharged, and the stability of the slope body is improved. The ecological landscape retaining wall has the characteristics that the supporting and retaining capacity is high, the adaptability is high, the landscape effect is good, and the economical benefits are remarkable, and is suitable for slope supporting engineering, hydraulic engineering and ecological landscape engineering.

The invention relates to an electric power connection device with a tension detection function, which comprises a housing with a built-in tension detector. The side wall of the housing is provided with an inlet / outlet opening communicating with the inner cavity of the housing. One end of the housing is integrally formed with a connecting portion connected to the pole tower, and the other end of the housing is integrally formed with another connecting portion that can be connected with the insulator string, so it not only has a connection function, but also has a tension detection function; Since the tension detection device can be built into the inner cavity of the housing, the tension detection device has strong stability and anti-interference ability; since the power connection device of the present invention has both the connection function and the tension detection function, the existing technology is saved. Adding tension sensors and transitional connecting parts between the required insulator strings and connecting devices not only has a simple process, greatly reduces material and labor costs, but also improves the safety of the transmission line.

The invention relates to a graph partitioning method based on a shortest path and density clustering. The graph partitioning method comprises the following steps: 1, defining a distance between any two points on a graph, namely G=(V, E), to be a length of the shortest path between the two points so as to obtain a distance space defining the distance between any two points; 2, clustering point sets obtained in the step 1 by a density-based clustering method, and classifying non-classified noise points into a group; 3, reducing subsets obtained in the step 2 into subgraphs obtained by partitioning of an original graph. The connectivity of subgraphs obtained by partitioning is guaranteed; furthermore, the partitioning speed is high, and the universality is good.

The invention belongs to the technical field of busbar manufacturing, and aims to provide a method for manufacturing a busbar circuit board with a thick conductor layer. In the invention, depth-controlled etching and depth-controlled edge milling are respectively performed on a first processing surface and a second processing surface which are oppositely arranged in a conductor layer with required thickness for one time, an insulation bonding layer is laminated to the conductor layer respectively from the first processing surface and the second processing surface so as to process a required busbar, the conductor layer with required thickness is arranged inside a circuit board through combined actions of a series of traditional circuit board manufacturing methods, and the busbar is enabled to have functions of an installation circuit board. In addition, the mode of depth-controlled edge milling is adopted, so that the roughness of the side wall of the conductor layer is increased to a certain degree, thus a binding force between the insulation bonding layer and the conductor layer is ensured, occurrence of undesirable phenomena of board explosion and delamination is reduced as far as possible, and thus manufacturing of a busbar circuit board which is low in production cost, universal and simple in manufacturing process and capable of passing high current can be ensured.

The invention belongs to the field of 3D micro-manufacturing, and relates to a method for constructing a 3D micro-nano channel structure through a laser direct-writing technology. The preparation method comprises the steps: hydrogel serves as a scaffold, and a 3D structure is constructed through the two-photon laser direct-writing technology; hydrophobic macromolecules are connected to the constructed microstructure, and oily components are loaded into the constructed microstructure; and after isotropic shrinkage and dehydration, the oily components are removed through a detergent, and thus the hollow network structure capable of reaching the nanoscale is obtained. Through the method, ordered micro-nano hole channels with the fineness of dozens of nanometers can be constructed, and the 3Dmicro-nano channel structure has great potential in the field of optoelectronic device, nano element and sensor development, biomedicine and the like.

The present invention discloses a borehole-wall image based adjacent drill hole structural surface connectivity analysis method. The method comprises the steps of: obtaining structural surface parameter information; calculating coordinates of structural surface feature points in a local coordinate system; carrying out normalization processing on coordinates of structural surface feature points in a global coordinate system; calculating a distance between each two feature points, and carrying out preliminary analysis on structural surface connectivity; and judging connectivity again. The method disclosed by the present invention is simple and easy to implement, stable and reliable, easy to operate, and high in working efficiency, and can carry out connectivity analysis on the structural surface between drill holes rapidly and accurately.

The invention discloses a preparation method of hollow titanium dioxide millimeter spheres consisting of nanoparticles and relates to the preparation method of the hollow titanium dioxide millimeter spheres. The invention aims to solve the technical problems that the existing TiO2 nano materials are difficult to separate and are low in recovery rate in photocatalysis or environmental pollution control system. The preparation method comprises the following steps: firstly, weighing a titanium source, an aqueoussolution of tetrapropylammonium hydroxide, deionized water and anion exchange resin; secondly, mixing the aqueoussolution of the tetrapropylammonium hydroxide with the deionizedwater, and then adding the titanium source and the anion exchange resin and stirring to obtain a mixture; thirdly, filling a reaction still with the mixture; fourthly, pouring out supernatant liquor to obtain small solid-phase spheres, and drying after washing the small solid-phase spheres; fifthly, placing the dried small spheres into a tube furnace to obtain small carbonized spheres; sixthly, placing the small carbonized spheres into a mufflefurnace for roasting to obtain the titanium dioxide millimeter spheres. The titanium dioxide millimeter spheres prepared through adopting the preparation method disclosed by the invention are easily separated and are high in recovery rate in the photocatalysis or environmentalpollution control system. The preparation method is used for preparing the hollow titanium dioxide millimeter spheres.

The invention relates to a doorframe connecting piece which comprises a main connecting piece, a corner and an auxiliary connecting piece. The doorframe connecting piece is characterized in that the main connecting piece comprises an upper table plate and a lower sloping plate, the auxiliary connecting piece comprises an upper table plate and a lower sloping plate, the upper table plates and the lower sloping plates are connected with a middle connecting plate, side arms are arranged on two sides of the middle connecting plate respectively, a T-shaped boss is arranged on each upper table plate, a threaded hole and a round hole are formed in the lower sloping plate of the main connecting piece and in the lower sloping plate of the auxiliary connecting piece respectively, a locking bolt and a spring are arranged between the lower sloping plate of the main connecting piece and the lower sloping plate of the auxiliary connecting piece, the corner comprises an upper plate and a lower plate, an upper sliding groove and a lower sliding groove are formed on two sides of the upper plate respectively, and an upper sliding groove and a lower sliding groove are formed on two sides of the lower plate respectively. The doorframe connecting piece can connect a horizontal frame and a vertical frame of a doorframe without welding needed, has a connecting function as well as a locking function, and is simple in structure, convenient to assemble and disassemble, reasonable in design, long in service life, and wide in market prospect.

The invention discloses a 3D printing wall with an embedded enclosure structural column and relates to the technical field of building materials. The 3D printing wall comprises a wall body, an enclosure structural column cavity is formed inside the wall body in a reserved mode through 3D printing equipment in the printing process, and cement is poured in the cavity to form the enclosure structuralcolumn. The invention further discloses a processing method of the 3D printing wall with the embedded enclosure structural column. The wall body manufactured through the method is high in strength and bearing capacity and more attractive.

The invention belongs to the technical field of spaceflight, and particularly relates to an inner-gear-type non-cooperative target locking mechanism. The inner-gear-type non-cooperative target lockingmechanism comprises a supporting shell, a bearing bush, a circular ring assembly, an inner toothed ring, multiple connecting pillars, locking connecting rods, pressing blocks, connecting screws and torsional springs, wherein the bearing bush is fixedly connected to the middle upper end of the inner wall of the supporting shell, the inner toothed ring is rotatably connected into the bearing bush,the upper end of the inner toothed ring is fixedly connected with the circular ring assembly through the connecting pillars, the upper end inside the supporting shell is fixedly connected with multiple lugs, all the lugs are hinged to the middle ends of the locking connecting rods through the connecting screws respectively, the connecting screws are sleeved with the torsional springs, the two endsof each torsional spring are connected with the supporting shell and the locking connecting rods respectively, the pressing blocks are fixedly connected to the upper ends of the locking connecting rods, the lower ends of the locking connecting rods are slidably connected with the inner side of the circular ring assembly, and the inner side of the circular ring assembly is fixedly connected with multiple convex lugs. By means of the inner-gear-type non-cooperative target locking mechanism, catching and releasing of a target can be achieved, and the stability of the target and the accuracy of the attitude are guaranteed.

The invention provides a multifunctional charging connector, which comprises a discharging interface and a charging interface, and is characterized in that a built-in PCBA is connected between the discharging interface and the charging interface; and the upper part of the built-in PCBA is provided with a data display interface, and the lower part is provided with an input interface. A charging equipment and charged equipment connection function is provided, a display function for displaying parameters (charging voltage, charging current, used power) during the charging process is provided, a prompting function for enabling a user to clearly know actual effectiveness of the charging equipment is provided, a protection control function is provided, safety performance is good, and a detecting function for detecting power of the charging equipment and power of the charged equipment is provided. Requirements of inputting data and parameters according to self needs of the user can be met.

The invention discloses a filtering electric connector contact. The contact is used for power supply signal transmission in a filtering electric connector; a magnetic tube, a capacitor tube, a copper coil and a metal tube are sleeved outside a contact insertion pin or a contact insertion hole of the contact in sequence; the capacitor tube and the contact insertion pin or the contact insertion hole are connected by welding the end parts; and the copper coil and the metal tube are connected by welding the end parts. According to the contact, by sleeving the magnetic tube and the capacitor tube on the contact insertion pin or the contact insertion hole directly, the contact has both functions of signal connection and filtering; the contact is separately fixed with a low level signal contact in the connector, so that the interference is avoided, and thus the contact has the characteristics of being simple in structure, simple and convenient to assemble and high in reliability and has wide popularization and application value.

The invention provides a moisture-proof storage device for building material comprising a cabinet body; the device also comprises vertical support beams installed on a left side wall and a right sidewall of the inner chamber of the cabinet body; the vertical support beam is provided with a slot; the slot is provided with a placing plate; a placing container is fixed on an upper surface of the placing plate; a drawer is installed on a bottom box; the drawer is loaded with drying powder; an outer side of the cabinet body is hinged to a cabinet door through hinges and a sealing strip is installed at the joint of the cabinet door and the cabinet body; an insulation lamp is installed on an upper end of an inner chamber of the cabinet body; a dust collecting box is fixed on an upper end of a right side of the cabinet body. The device of the present invention is provided with a partition on the upper side of the bottom box, and the partition is uniformly provided with ventilation holes. Theventilation holes can achieve the communication between the air inside the bottom box and the air inside the cabinet, and the drying powder can absorb the moisture inside the cabinet to achieve the moisture-proof effect. At the same time, the suction pipe is equipped with a suction pump, which can achieve the function of dust removal of the cabinet; this device has a simple structure, strong practicality and good moisture-proof storage effect.

The invention relates to the field of disposable hygienic products, in particular to a multi-layer material arc-shaped cutting method which comprises the following steps that firstly, multi-layer materials are input in a stacked mode, hot pressing is conducted on the two sides of the multi-layer materials through a hot pressing device, and it is guaranteed that the multi-layer materials are mutually bonded and not separated through hot pressing; secondly, the materials are conveyed through a first adsorption conveying device and then fed into an arc cutting device to be subjected to arc cutting; and thirdly, waste obtained after arc cutting is sucked away through a waste suction nozzle, the waste suction nozzle is arranged below the arc cutting device, the multi-layer material obtained after arc cutting is transferred through a transfer wheel device, and then lengthened conveying is conducted through cooperation of a second adsorption conveying device and the transfer wheel device. The arc-shaped cutting method solves the technical problems that when an existing arc-shaped cutting device conducts arc-shaped cutting on multiple layers of materials, a material layer which is not attached to an adsorption bottom roller is prone to loosening or rolling up, the cutting effect is poor, and waste enters a product main line.

The invention discloses a motor integrating connection and movement functions and a modularized robot applying the motor. The motor disclosed by the invention has the characteristic of having the connection function and the movement function simultaneously, in the original modularized robot system, two sets of functional systems including a movement system and a connection system are required simultaneously, but all functions can be realized by only adopting one set of system of the invention. The motor is very energy-saving, and the connection is realized by magnetic fields of an aluminum-nickel-cobalt alloy magnet and a neodymium-iron-boron alloy magnet; during the movement, only a pulse current with very small energy consumption needs to be provided when the motor moves every time, then a magnetic field direction of the aluminum-nickel-cobalt alloy magnet is changed, and the movement is realized by means of the action of a magnetic field force. The modularized robot disclosed by the invention can form a complete modularized robot platform, and is used for carrying other sensors or actuators to finish a specific task. Meanwhile, since the manufacturing is simple, the modularized robot can also be used for researching of related movement and control algorithms of the modularized robot.

The invention discloses a wooden threaded pipe with the function of repairing leaks, which comprises a wooden threaded pipe and a leak-repairing device; the leak-repairing device includes a connecting pipe with screw thread screwed into a screw hole, and the two ends of the connecting pipe are respectively provided with a syringe and an integral structure. Needles, syringes and needles are filled with film-coated repair capsules and acupuncture; the repair capsules contain first film balls and second film balls, the first film balls contain urea-formaldehyde resin adhesive, and the second film balls contain urea-formaldehyde resin adhesives. The film balls contain resorcinol. The invention not only has the connection function through the nut structure, but also can press out the repair capsule in the syringe by rotating the nut when damage occurs, and the repair capsule is pierced by a needle so that the urea-formaldehyde resin adhesive and resorcinol are fused together , to achieve the technical effect of express curing, bonding and repairing damage, and the rotating nut can combine the outer film of the repairing capsule with the wooden threaded pipe through rotary crimping to further improve the fastness of the repair.

The invention discloses a power transmission planning to-be-selected set optimization method and system based on redundancy constraint identification, and is used for obtaining a minimum-scale to-be-selected line set meeting planning requirements, reducing a solution space for the calculation of a subsequent power transmission network planning problem, and improving the calculation efficiency. The method comprises the following steps of: checking the connectivity of a net rack, adding lines to a test net rack on the basis of a redundancy constraint identification method to obtain an initial optimized to-be-selected line set, and finally performing line reduction correction on the test net rack on the basis of the redundancy constraint identification method to obtain a minimum-scale power transmission planning to-be-selected line set. According to the method, an optimization problem does not need to be additionally solved, and the method has high efficiency for formulating a complex large-scale power system power transmission planning to-be-selected line set.

The invention provides a method for manufacturing an autoclaved aerated concrete heterogeneous wall component by partitioning an inner cavity of a mould, belonging to the technical field of energy-saving building walls. The method comprises the following steps of: confirming the proportion of the corresponding slurry and a mould separating component according to the design requirement of the wall component; manufacturing the separating component, and placing the separating component into the inner cavity of the mould by a positing strip to form a subarea; pouring the corresponding slurry, and growing a green body; vertically raising the separating component after the green body is grown to the semi-solid state or the initial solid state, and maintaining to form the green body; and demoulding, cutting into semi-finished products, inserting an accessory into a specified position on the component as required, and maintaining into the heterogeneous wall component. According to the method for manufacturing the autoclaved aerated concrete heterogeneous wall component by partitioning the inner cavity of the mould provided by the invention, various autoclaved aerated concrete components with different functions can be developed and manufactured, and the wall can be built by the components without local cast-in-place and pre-casting and without needing to construct an additive layer on a wall surface, so that the wall structure can be simplified, and the building construction can be simplified as well.

The invention discloses rod-like bag filling and sealing equipment. The equipment comprises a cross beam. A push plate is movably arranged in a filling pipe. Teeth are symmetrically and fixedly arranged in an inner groove of a hollow push plate. An incomplete gear is arranged movably on the teeth in an engaged mode. A feeler lever is fixedly arranged on the outer wall of the hollow push plate. An electric chuck switch and a panel are arranged on a bearing plate. A guide frame is fixedly arranged on a left clamping plate. A main electric chuck is arranged in the guide frame. An extension rod is fixedly arranged on a right clamping plate. An auxiliary electric chuck is fixedly arranged on the extension rod. Heating moulages are arranged in the positions, close to heating blocks, outside heat sealing blocks correspondingly. According to the rod-like bag filling and sealing equipment provided by the invention, a series of operation including filling and heat sealing on rod-like bags can be automatically completed, the linkage performance is high, production is smooth, in addition, the filling amount each time can be standardized and fixed, the heating time for heat sealing is the same, the quality stability of products of the same batch is effectively improved, and the equipment quite deserves popularization.

The invention discloses a preparation method of hollow titanium dioxide millimeter spheres consisting of nanoparticles and relates to the preparation method of the hollow titanium dioxide millimeter spheres. The invention aims to solve the technical problems that the existing TiO2 nano materials are difficult to separate and are low in recovery rate in photocatalysis or environmental pollution control system. The preparation method comprises the following steps: firstly, weighing a titanium source, an aqueoussolution of tetrapropylammonium hydroxide, deionized water and anion exchange resin; secondly, mixing the aqueoussolution of the tetrapropylammonium hydroxide with the deionizedwater, and then adding the titanium source and the anion exchange resin and stirring to obtain a mixture; thirdly, filling a reaction still with the mixture; fourthly, pouring out supernatant liquor to obtain small solid-phase spheres, and drying after washing the small solid-phase spheres; fifthly, placing the dried small spheres into a tube furnace to obtain small carbonized spheres; sixthly, placing the small carbonized spheres into a mufflefurnace for roasting to obtain the titanium dioxide millimeter spheres. The titanium dioxide millimeter spheres prepared through adopting the preparation method disclosed by the invention are easily separated and are high in recovery rate in the photocatalysis or environmentalpollution control system. The preparation method is used for preparing the hollow titanium dioxide millimeter spheres.

The invention discloses a robot inspection region determination method, a robot inspection region determination device, a medium and equipment. The robot inspection region determination method comprises the steps of: acquiring a rectangular to-be-inspected region planning graph, and planning to-be-built buildings and buildings in construction, wherein the to-be-inspected region planning graph comprises positions of all target buildings in a to-be-inspected region, and the target buildings comprise built buildings; generating a inspection base graph according to the to-be-inspected region planning graph, wherein the inspection base graph is composed of a binary matrix, each pixel of the matrix corresponds to a fixed region in the to-be-inspected region planning graph, and a value of each region reflects whether a target building exists in the fixed region; generating a topological graph according to the inspection base graph, wherein each vertex in the topological graph corresponds to each element in the inspection base graph, and only one connecting line exists between the vertexes of which the corresponding element values are not zero; and determining a robot inspection region according to the topological graph. The robot inspection region determination method and the robot inspection region determination device can improve the inspection efficiency and reduce labor cost.

The present invention relates to a kind of tube cover made of plastic film or sheet material through the process of rolling, and is characterized by that every rolled layer can be formed under the condition of that its diameter is less than its actual used minimum diameter and can apply elastic pressure to bar-shaped body covered with the most internal layer of said tube cover. Said invention can be used as package protective cover of bar-shaped goods, rust-proofing heat-insulating cover for metal bar or metal pipe, decorative protective cover of various lines or wires and various pen cover, and can be developed and made into various roll congratulatory card, roll calendar, roll map, roll telephone book, roll timetable and roll advertisement.

The invention discloses a wooden threaded pipe repaired by vegetable glue, which comprises a wooden threaded pipe and a leakage repairing device; the leakage repairing device comprises a connecting pipe which is threaded and screwed into a screw hole, and the two ends of the connecting pipe are respectively provided with a syringe and a needle of an integral structure , the syringe and the needle are filled with film-coated repair capsules and acupuncture; the repair capsule contains a first film ball and a second film ball, the first film ball contains konjac plant gum, and the second film ball contains Contains carrageenan. The invention not only has the connection function through the nut structure, but also can press out the repair capsule in the syringe by rotating the nut when it is damaged, and the repair capsule is pierced by a needle so that the konjac vegetable gum and carrageenan are fused together to achieve express curing , The technical effect of gluing and repairing damage, and the rotating nut can combine the outer membrane of the repairing capsule with the wooden threaded pipe by rotating and crimping to further improve the fastness of the repair.

The invention discloses an automatic identification method and system for road surface disease images. The method includes: preprocessing the captured road surface image, including Gamma grayscale correction, Gaussian filter enhancement and local adaptive binarization; performing edge detection on the binarized image; performing connected domain contour detection on the image after edge detection , to obtain the number of connected domains and the circumscribed rectangle of the connected domain outline; judge the area where the road surface crack is located according to the shape of the circumscribed rectangle of the connected domain outline; extract the image of the crack area from the image after edge detection according to the location information of the area where the pavement crack is located , and superimposed the black template to form a crack feature image with the same size as the original image; the crack feature image is classified based on the convolutional neural network. Compared with the prior art, the present invention has very excellent detection efficiency for crack location in pavement disease, and has good robustness performance for crack images with different characteristics.

The invention provides a road selection method and device, electronic equipment and a readable storage medium, and relates to the technical field of artificial intelligence such as intelligent traffic, deep learning and cloud service. The road selection method comprises the following steps: acquiring a point of interest, and determining at least one candidate road corresponding to the point of interest; extracting interest point features of the interest points and road features of the at least one candidate road; and selecting a target road from the at least one candidate road according to the interest point features and the road features of the at least one candidate road. According to the method, the target road is selected by using the interest point features and the road features at the same time, connectivity between the selected target road and the interest points is ensured, the target road is selected by using richer features, and the accuracy of the selected target road is further improved.