35results about How to "Solve Stretching Problems" patented technology

The invention relates to a magnet in-situ detection method for metal cracking expansion under the condition of variable magnetic excitation, which belongs to the technical field of nondestructive detection for metal damage and fatigue process. The method adopts a miniature Haul device to form an array type sensor, and utilizes an adjustable magnetic field signal and an appropriate excitation method to remove the interference of stray magnetic fields specific to different magnet materials so as to obtain an optimal detection effect. The magnetism in-situ detection method adopts an array type probe, does not need to move a detection mechanism, utilizes abnormal change information of a weak magnetic signal when the cracking of ferromagnetic materials expands to achieve real-time in-situ detection of the cracking expansion, and has the advantages of being free of contact, high in detection efficiency, simple, convenient, low in cost and the like.

The invention discloses a music humming searching method conducting matching based on binary approach dynamic time warping and relates to the technical field of audio searching and humming searching. The method includes two portions: first utilizing musical instrument digital interface (MIDI) music files to build a music data base; then extracting characteristics of a humming fragment, conducting matching based on the binary approach dynamic time warping with a music data base model and returning a searching result. The method includes the following steps: first conducting normalization, band-pass filtering, pre-emphasis, windowing framing and the like on the humming fragment; then conducting silencing section filtering, keynote detection, mid-value smoothing and the like; finally conducting matching based on the binary approach dynamic time warping, sequencing matching rates from the high to the low and returning the result. The method has the advantages of achieving note sequence time point alignment and note relative pitch of music searching and remarkably improving searching hit rate.

The invention discloses a non-intrusive penetration type radio frequency diagnosis and treatment device. The non-intrusive penetration type radio frequency diagnosis and treatment device comprises a radio frequency power supply, an intelligent controller and a front conduit, wherein the front conduit is internally provided with a cooling system composed of a telescoping cavity, the outer side of the cooling system is provided with an electrode array, the electrode array takes a flexible thin film as a carrier, one end of the flexible thin film is fixed on the outer surface of the front conduit, the other end is not fixed, the outer side of the electrode array is provided with a protective sleeve for protecting the electrode array in successfully going into an organ and protecting the organ from physical damage; the radio frequency power supply is connected with the electrode array through the intelligent controller; the radio frequency electrode array abuts against a tissue surface and maintains close contact with the tissue surface under the pressure effect of the flexible telescoping cavity, and thus good electric contact is formed; and the cooling system protects the surface tissue of a nearby area covered by the electrode array to enable the surface tissue from a passivation effect of radio frequency power.

The invention discloses a projection method and electronic equipment, and relates to a projection technology field. A problem of a prior art of a distortion phenomenon caused by projection content projected in an uneven projection surface is solved. The projection method comprises steps that the related information of the projection surface is acquired; the adjusting parameter of the projection content is determined according to the related information; the projection content is adjusted based on the adjusting parameter, and the adjusted projection content is acquired; and then the adjusted projection content is projected in the projection surface.

The invention discloses a seamlessly spliced display. The seamlessly spliced display includes display screens which are spliced with each other, light transmission plates covering display areas and frames of the display screens are arranged in front of the display screens, the front surfaces of the light transmission plates are emergent faces, micro-prisms covering the whole emergent faces are arranged on the emergent faces, and each micro-prism includes a plurality of prism strips with bevels, wherein the prism strips are parallel to form a sawtooth shape; the prism strips extend to all the frames from the centers of the light transmission plates, the prism strips extending along the frames are parallel to the frames in the corresponding directions respectively, and the prism strips in the adjacent directions are mutually connected. According to the seamlessly spliced display, the whole emergent faces of the light transmission covering plates are provided with the prisms with the bevels, so that the picture stretching problem of screen edges and the light reflection problem of display pictures are solved.

The invention discloses a line scan camera triggering time-sequence synchronization method, which is used for a line scan camera scanning system. The line scan camera scanning system includes a photographing part used for photographing a to-be-detected object, a carrier used for placing the to-be-detected object and a Y-axis motor. The carrier moves along a Y-axis under driving of the Y-axis motor. The photographing part includes a line scan camera. The method includes the steps of: providing a frame triggering signal to the line scan camera in advance; and outputting a row triggering signal to drive photographing of the line scan camera when a preset start position is reached, wherein the start position is set after starting of the frame triggering signal. The invention also discloses a line scan camera triggering time-sequence synchronization device, line scan camera triggering time-sequence synchronization equipment and a storage medium, and relates to the technical field of cameras. The line scan camera triggering time-sequence synchronization method, the line scan camera triggering time-sequence synchronization device, the line scan camera triggering time-sequence synchronization equipment and the storage medium solve the problem of stretching or distortion of an image shot by a line scan camera in the prior art, and improve image shooting effect.

The invention discloses a scalable electric wire comprising an elastic component which is an elastic adhesive tape; a winding wire core which is spiral and is wound on the elastic component; and an elastic insulating layer which wraps the winding wire core. The beneficial effects of the scalable electric wire are that combination of the special structures of the elastic component, the elastic insulating layer and the wire core of the scalable electric wire is utilized so that the electric wire has scalability in length, a situation that the electric wire is liable to be broken via stretching or repeated bending in use is solved, and thus production efficiency and safety of various automation devices using the electric wire are guaranteed.

The invention provides an elastic knitted fabric knitting method. Every three lines form a knitting transverse row by knitting to serve as a cam system and include loop yarns, surface yarns and groundyarns, an integral binding effect of the loop yarns on gray cloth is weakened, an underfilling coefficient of surface yarn loops is increased, and polyurethane filaments are capable of giving play toan elastic effect. A fabric produced according to the method reaches 220% or above in transverse and longitudinal elongation and reaches 80% or above in after-stretching recovery rate. The inventionfurther provides a circular knitting machine which can be used for producing elastic knitted fabrics. By additional mounting of a polyurethane yarn conveying system on an existing single-side circularknitting machine and improvement of a polyurethane yarn guide, a non-loop knitting cam and a looping tucking cam, stability and smoothness in polyurethane yarn feeding are realized, and fabric production efficiency and product quality are improved.

The invention belongs to a buried pipe compensating device, in particular relates to a buried pipe stretcher. A coil pipe is sleeved to and fixed to an upright post of a bracket which is arranged in a cylinder together with the coil pipe, end covers are respectively fixed at both ends of the cylinder, both ends of the bracket are respectively inserted in pin shaft holes in the end covers, and both ends of the coil pipe respectively extend out from both end holes of the cylinder. The invention has the advantages that the stretching problem of the buried pipe can be thoroughly solved by compensating the stretched buried pipe with the stretcher so as to prevent a pipeline from being twisted, stretched to be deformed, cracked to run water or even broken because of the stretching and the deformation of the buried pipe in the service life of a ground source heat pump and ensure the normal use of the buried pipe.

The invention discloses a protection device for a high-voltage cable at a train end of a motor train unit. The protection device is arranged at the top end of a roof at the adjacent place of two trains and is used for protecting the high-voltage cable. The protection device comprises a base and further comprises a sheath which is lapped on the base and can slide along the base transversely; the structure of the sheath forms a hollow hole penetrating through the length direction of the sheath; and stop blocks are arranged on the two transverse ends of the base. The protection device simultaneously solves the problems of stretch, bending and wear of the high-voltage cable of the motor train unit at the train end, the safety and the stability for train operation can be effectively improved, the problems of stretch and folding of the high-voltage cable at the train end due to train body swing and train turning are avoided, and the problems of wear and stripping of the protection sheath of the high-voltage cable due to mutual friction of the high-voltage cable at the train end and the train body are avoided.

The invention relates to a production technology of an all dielectric layer twisted nonmetallic optical cable. The production technology comprises the steps of material transmission, guide mould positioning, polyethylene material extrusion, cable cooling and product formation and wire retreating. As for a cable core and an FRP reinforcing member, a suspension wire applies laying tension to the FRP reinforcing member through guide mould positioning so that the cable core and the FRP reinforcing member are enabled to be formed in an extruding machine in the relatively tension-free state, the FRP reinforcing member and the optical cable are ensured to be parallel after cooling and the finally produced eight-shaped cable can maintain the flat and unbending state under the condition of natural release. When the produced optical cable is stretched, the situation that the optical cable part is firstly affected by the stress caused by natural bending of the optical cable does not occur, and the suspension wire of the optical cable is firstly affected by the stress so that the problem of optical cable stretching can be solved. Logistics resistance and counterpressure can be increased by using two layers of filter screens so that nylon plasticizing is enabled to be more uniform. The production technology has the advantages of being safe, low in cost and high in tensile strength and can guarantee the geometric structure and intensity of eight-shaped extrusion.

The invention discloses a beam and slab connecting structure for self-restoring structures. The beam and slab connecting structure comprises a beam and a slab. The beam and the slab are provided with holes whose diameter is larger than that of a screw, so that sliding requirements between the beam and the slab can be met. A gap between the screw and the concrete slab is filled with plastic foam or is foamed, so that vertical sliding is not restricted, the bending moment caused by a gravity load effect at the beam and slab connection can be restricted. When a self-restoring reinforced concrete frame structure employs the beam and slab connecting structure, a floor stretching problem caused by a condition that beam-column joints of the re-storing structure are opened under a seismic force effect can be effectively solved. When a prefabricated type concrete structure employs the beam and slab connecting structure, temperature stress can be effectively released, and the installation and construction can be facilitated. The bending moment caused by the gravity load effect at the beam and slab connection can be effectively restricted through the connecting manner mentioned above. The beam and slab connecting structure is simple, is rapidly constructed, is reasonably forced, and has good technical and economic benefits.

The invention discloses a vacuum adsorption roller device. The vacuum adsorption roller device comprises a vacuum adsorption roller, a longitudinal pipeline connected with the air outlet of the vacuum adsorption roller, a transverse pipeline connected with the longitudinal pipeline and a vacuum sucking pump connected with the air outlet of the transverse pipeline, wherein a first flow control valve used for adjusting an adsorption force is arranged on the longitudinal pipeline; and a second flow control valve used for adjusting the adsorption force is arranged on the transverse pipeline. The vacuum adsorption roller device further comprises an exhaust muffler connected with the second flow control valve and a blower exhaust muffler arranged above the vacuum sucking pump and the exhaust muffler, wherein the exhaust muffler is located at the air inlet of the vacuum sucking pump; and the blower exhaust muffler is located at the exhaust outlet of the vacuum sucking pump. The vacuum adsorption roller device can well control the roller adsorption force to effectively control the tension of a thin film and improve both the production efficiency and the quality of the thin film.

The invention relates to the field of advertisement and particularly relates to an advertisement displaying device. The advertisement displaying device comprises a displaying part, a rolling part and a fixed part, wherein the rolling part is cylindrical and can rotate along the axial direction; the displaying part is planar; one side edge of the displaying part is detachably connected with the outer wall of the rolling part; the fixed part is detachably connected with the displaying part. The advertisement displaying device provided by the invention has the advantage that the problem that the displaying part can not be rolled and stretched is effectively solved.

A method for generating a multi-detail-level grid comprises the following steps that downsampling is conducted on voxel data, and additional information is recorded; Sewing cracks among voxels of different grades after downsampling by utilizing the additional information; And remapping the map coordinates on the vertexes. According to the method for generating the multi-detail-level grid, internalvoxel leakage is effectively avoided, cracks between different multi-detail levels are effectively eliminated, the problem that a map on a high-level multi-detail-level grid is stretched can be effectively solved, and the grid corresponding to each multi-detail level of a terrain is generated with low cost.

The embodiment of the invention provides a chain and a wearable device. The chain comprises a chain body, a first connecting block, a second connecting block and a telescopic mechanism. The chain bodyis a long-strip-shaped groove formed by inwards sinking the top end of the chain. The first connecting block and the second connecting block are symmetrically arranged at the two end parts of the long edge of the chain body, connecting structures are arranged on the first connecting block and the second connecting block, and the connecting structures are used for connecting the telescopic mechanism. The telescopic mechanism is arranged in the long-strip-shaped groove between the first connecting block and the second connecting block, when the chain is bent, the telescopic mechanism enables the two ends of the telescopic mechanism to contract into the connecting structure, and when the chain is straightened, the two ends of the telescopic mechanism are pulled out of the connecting structure. By arranging the telescopic mechanism in the groove of the chain, the telescopic mechanism contracts and pulls out towards the connecting structures at the two ends in the chain bending and straightening process, and the problem that at present, a flexible display screen is stretched and compressed in the chain bending and straightening process is solved.

The invention relates to a foldable tower cap. A cross section area of a cap body is gradually decreased from bottom to top; the cap body is divided into at least two layers from the bottom to the top; a connection member is arranged at two adjacent cap layers; and the upper layer of the cap body is embedded into the lower layer of the adjacent cap layer. The cap body has a structure with a large lower part and a small upper part, so when the cap body is placed on carried, the cap layer on the upper layer can be directly embedded into the cap layer under; and a layer upon layer nesting structure is formed. At last, the height and size of the whole cap body after the folding can be greatly reduced. The shape of the cap after the folding is relatively regular and the cap can be easily carried and accommodated; besides, connection members are arranged between cap layers, so the whole laminated cap body can be an integral body during the use; cap layer connection and stability during the use can be guaranteed due to the connection members; and normal use of the cap body cannot be affected by the laminated structure.

The invention relates to the technical field of sunshade curtains, and discloses a sunshade curtain. The sunshade curtain comprises a sliding mechanism and a fixing mechanism, wherein the sliding mechanism is composed of a first movable plate and a second movable plate, arc grooves are formed in the front side and the rear side of the first movable plate, a rotating mechanism is arranged in a cavity of the second movable plate, a sunshade curtain body is arranged between the first movable plate and the second movable plate, and the fixing mechanism is composed of a fixing plate and fixing bolts. According to the sunshade curtain, a lifting rope is clamped in a clamping groove, and each ball is clamped between every two adjacent clamping blocks, so that the lifting rope and the balls are dragged, a rotating rod rotates to drive one ends of rolling rods to rotate in threaded grooves, rolling balls at the other ends of the rolling rods rotate in bearings B, then the sunshade curtain bodydoes stretching and retracting motion along with the rolling rods, through the simple stretching effect of the lifting rope and the balls, the sunshade curtain body can be stretched and retracted without being clamped, and the problem that a sunshade curtain is inflexible to stretch and retract due to the fact that a lifting rope is prone to be clamped when the lifting rope is dragged in the priorart is solved.

The present invention relates to an image acquisition method, especially a continuous stacked image acquisition method for sorting large-leaf crops. In order to solve the problems in the background technology, a continuous stacked image acquisition method for sorting large-leaf crops is provided, including An encoder is set in the traveling direction of the large-leaf crops, and the encoder is electrically connected to at least two line-scan cameras. The encoder outputs a square wave signal to the line scan camera after rotating N circles, and the square wave signal is used as the line frequency signal of the line scan camera; 2) When the line scan camera receives the square wave signal from the encoder, the line scan camera continuously The image of the large-leaf crops is collected, and the present invention has the characteristics of realizing cascaded continuous feeding of the large-leaf crops, thereby improving detection efficiency.

The invention discloses a line scan camera triggering time-sequence synchronization method, which is used for a line scan camera scanning system. The line scan camera scanning system includes a photographing part used for photographing a to-be-detected object, a carrier used for placing the to-be-detected object and a Y-axis motor. The carrier moves along a Y-axis under driving of the Y-axis motor. The photographing part includes a line scan camera. The method includes the steps of: providing a frame triggering signal to the line scan camera in advance; and outputting a row triggering signal to drive photographing of the line scan camera when a preset start position is reached, wherein the start position is set after starting of the frame triggering signal. The invention also discloses a line scan camera triggering time-sequence synchronization device, line scan camera triggering time-sequence synchronization equipment and a storage medium, and relates to the technical field of cameras. The line scan camera triggering time-sequence synchronization method, the line scan camera triggering time-sequence synchronization device, the line scan camera triggering time-sequence synchronization equipment and the storage medium solve the problem of stretching or distortion of an image shot by a line scan camera in the prior art, and improve image shooting effect.

Embodiments of the present invention provide a chain assembly and a wearable device. The chain assembly includes: at least two chain links and a clip connecting the front and rear two chain links; the left and right ends of the chain link protrude upward to form a first clip The holding part and the second holding part, the tops of the first holding part and the second holding part are recessed downward to form the first groove and the second groove; The first clamping piece and the second clamping piece protruding from the end face downward, and slide in the first groove and the second groove during the bending process of the chain; the first clamping part and the second clamping part 1. The first clamping piece and the second clamping piece are provided with connecting through holes at corresponding positions close to the front end and the rear end, which are used to rotatably connect the chain link and the clamping piece. The front and rear two chain links are connected by the clamp, and the clamp slides between the front and rear two chain links, which solves the problem that the chain assembly is stretched and compressed during the bending process. The clamp is adjusted by adjusting the clamp The tightness of the hold can be used to achieve hovering.

The invention discloses a line array camera scanning method, which is used in a line array camera scanning system, comprising the steps of: acquiring an image of an object; selecting a plurality of marking points on the image of the object; Points are followed by high-precision focusing to determine the focus position of each marking point; according to the focus position of each marking point, the target is scanned with a line scan camera. It overcomes the selection basis of the best focal length based on the definition of a single scanning line in the prior art, which leads to the phenomenon that the image in the vicinity of the focal point is easy to appear unclear, and the shooting trigger signal of the line scan camera is controlled by the movement of the vehicle. Trigger generation, so that after the vehicle stops moving, a shooting trigger signal can be sent to avoid image distortion or misalignment caused by the line array camera taking pictures when the vehicle is moving, and improve the focusing accuracy of the line array camera, thereby improving the scanning accuracy .

The invention discloses a semi-honeycomb steel belt gear hobbing machine capable of ensuring uniform forced convection flow field. The driving shaft is connected with the main shaft of the reduction motor through a coupling, the two trapezoidal gears are installed in mesh with each other, and the gap between the tooth surfaces is the thickness of the steel strip. Using the above technical solution, using the principle of gear meshing, the steel strip is extruded into a semi-hexagonal semi-honeycomb steel strip during the meshing process of the steel strip. The deformation is small and the production efficiency is high; the fine-tuning mechanism of the driven gear shaft is designed, and by fine-tuning the distance between the main and driven wheels, the problem of excessive extrusion and stretching of the steel strip caused by the slight change in the thickness of the steel sheet is solved; The parallelism of the moving wheel solves the large arc distortion problem of the semi-honeycomb steel belt; the structure is simple, and the use and adjustment are convenient.

The invention discloses a music humming searching method conducting matching based on binary approach dynamic time warping and relates to the technical field of audio searching and humming searching. The method includes two portions: first utilizing musical instrument digital interface (MIDI) music files to build a music data base; then extracting characteristics of a humming fragment, conducting matching based on the binary approach dynamic time warping with a music data base model and returning a searching result. The method includes the following steps: first conducting normalization, band-pass filtering, pre-emphasis, windowing framing and the like on the humming fragment; then conducting silencing section filtering, keynote detection, mid-value smoothing and the like; finally conducting matching based on the binary approach dynamic time warping, sequencing matching rates from the high to the low and returning the result. The method has the advantages of achieving note sequence time point alignment and note relative pitch of music searching and remarkably improving searching hit rate.

The invention provides an Android-based resolution ratio automatic adjustment method. The Android-based resolution ratio automatic adjustment method includes the steps of (10) an initial blank area of an Android file system is divided to form a storage sector; (20) data in the storage sector are read through a BootLoader procedure to be transmitted to an inner core; (30) the inner core valuates the historical resolution ratio to a CPU output the resolution ratio; (40) the optimum resolution ratio of a current external displayer is obtained through a display driver to be written into the storage sector; (50) whether the historical resolution ratio is coincident with the optimum resolution ratio of the current external displayer or not is judged, the step (60) is executed if the historical resolution ratio is coincident with the optimum resolution ratio of the current external displayer, or the step (20) is repeatedly executed; (60) the CPU output resolution ratio is valuated to display-size of an Android framework layer. The invention further provides an Android-based resolution ratio automatic adjustment system; and the Android-based resolution ratio automatic adjustment system can be automatically suitable for display scales of different external displayers.

The invention belongs to a buried pipe compensation device and relates to a buried pipe stretcher. A coiled pipe is mounted on a stand column of a support in a sleeving manner and fixed to the stand column of the support. The support and the coiled pipe are arranged in a barrel. End covers are fixed to the two ends of the barrel correspondingly. The two ends of the support are inserted into pin shaft holes in the end covers. The two ends of the coiled pipe extend out of holes in two ends of the barrel. The buried pipe stretcher has the beneficial effects that when a buried pipe is stretched, compensation can be achieved through the stretcher, and buried pipe stretching problems which are found are solved thoroughly; it is guaranteed that within the service life of a ground source heat pump, the problems of pipe distortion, tensile deformation, crack and water leakage and even fracture caused by tensile deformation of the buried pipe are avoided; and normal use of the buried pipe is guaranteed.

The invention relates to an image acquisition method, in particular to a continuous stacked image acquisition method for large-leaf crop sorting. In order to solve the problems in the background art,the invention provides a continuous laminated image acquisition method for sorting large-leaf crops, which comprises the following steps: arranging an encoder in the advancing direction of the large-leaf crops, electrically connecting an encoder with at least two line scanning cameras, and aligning line scanning cameras with the large-leaf crops. An image acquisition method comprises the followingsteps: (1) driving the encoder to rotate when the big-leaf crop advances, outputting square wave signals to the line scanning cameras after the encoder rotates for N circles, and taking the square wave signal as a line frequency signal of the line scanning camera; and (2) after the line scanning cameras receive the square wave signal sent by the encoder, with the line scanning cameras continuously collecting images of the large-leaf crops. The invention has the advantages that stacked continuous feedings of the large-leaf crops can be achieved, and detection efficiency is improved.

The invention provides an elastic knitted fabric knitting method. Every three lines form a knitting transverse row by knitting to serve as a cam system and include loop yarns, surface yarns and groundyarns, an integral binding effect of the loop yarns on gray cloth is weakened, an underfilling coefficient of surface yarn loops is increased, and polyurethane filaments are capable of giving play toan elastic effect. A fabric produced according to the method reaches 220% or above in transverse and longitudinal elongation and reaches 80% or above in after-stretching recovery rate. The inventionfurther provides a circular knitting machine which can be used for producing elastic knitted fabrics. By additional mounting of a polyurethane yarn conveying system on an existing single-side circularknitting machine and improvement of a polyurethane yarn guide, a non-loop knitting cam and a looping tucking cam, stability and smoothness in polyurethane yarn feeding are realized, and fabric production efficiency and product quality are improved.