1064results about How to "Achieve fine-tuning" patented technology

The invention provides an Internet picture filtering method and device. The Internet picture filtering method comprises the following steps: according to different preset dimensions, zooming an obtained Internet image to generate pictures of different dimensions; calculating the quick characteristics of the pictures of different dimensions; adopting preset image annotation information and the quick characteristics to train to generate a target image classifier; utilizing the target image classifier to detect the Internet image, and determining a candidate image area which contains target attributes; inputting the candidate image area into a convolutional neural network to calculate the characteristics of the convolutional neural network; and utilizing the classifier to classify whether the picture contains a target image or not according to the convolutional neural network to realize picture filtering. Internet pictures can be favorably filtered, calculation efficiency is improved, a user can carry out fine tuning on a deep neural network on line, and therefore, detection performance of the Internet picture filtering method is better than the detection performance of other methods.

The invention provides a method which can determine the size of a transmission block in the high speed downlink packet access service, wherein, the method comprises the following steps: the step one, the number of code channels required by the practicality is determined according to the corresponding relation of the wireless channel quality value reported by a user and the usable code channels of the high speed downlink packet access data channel, and the size of the transmission block which is corresponding to the number of the code channels required by the practicality is searched out in a UE capability set attribute table defined by the related protocols; the step two, all data quantities to be sent out in the queue which is to be sent out are calculated and whether the sum of the data quantities and the size value of the transmission block is smaller than the size value of the transmission block which is corresponding to the number of the code channels required by the practicality is judged, if the sum of the data quantities and the size value of the transmission block is smaller than the size value of the transmission block which is corresponding to the number of the code channels required by the practicality, the size of the transmission block is decreased; if the sum of the data quantities and the size value of the transmission block is not smaller than the size value of the transmission block which is corresponding to the number of the code channels required by the practicality, the size of the transmission block is not adjusted, thereby realizing the fine adjustment to the TBsize and achieving the effect to improve the throughput efficiency of the system.

The trimmed buckwheat sheller includes one outer barrel serving as the casing, one inner bushing, one bearing seat with one rotating shaft, one movable wheel on the shaft, one upper cover, one fixed wheel fitting the movable wheel. It features the upper cover comprising one inner ring and one outer ring connected through threads for easy interval regulating and trimming. The present invention has the advantages of high regulating precision, simple and fast regulation, high production efficiency and capacity of processing buckwheat in different plumpness.

The invention relates to a single-blade mounting lifting tool of a wind generating set. A main lifting arm is mounted in the middle of a main beam. The lower end of the main lifting arm is supported at the lower end of the main beam through a pin shaft and can rotate around the pin shaft. An oblique oil cylinder is further mounted between the main lifting arm and the main beam. The two ends of theoblique oil cylinder are hinged to the lower end of the main beam and the middle of the main lifting arm correspondingly. Blade clamping devices are mounted at the two ends of the main beam correspondingly. The lifting angle between the main lifting arm 2 and the main beam is adjusted through stretching and contracting of the oblique oil cylinder, and therefore a blade clamped in the blade clamping devices can change in air by a dip angle ranging from -30 degrees to 30 degrees. A clamping oil cylinder and an adjusting oil cylinder are mounted between the rear end of upper pincers of each blade clamping device and a clamping column and between the rear end of lower pincers of the corresponding blade clamping device and the corresponding clamping column correspondingly. The two ends of eachadjusting oil cylinder are hinged to the upper portion of the corresponding clamping column and the rear end of the corresponding lower pincers correspondingly. The two ends of each clamping oil cylinder are hinged to the middle portion of the corresponding clamping column and the rear end of the corresponding upper pincers correspondingly. The upper pincers and the lower pincers achieve closingand angle adjusting through stretching and contracting of the adjusting oil cylinders and the clamping oil cylinders.

The invention discloses a laser communication capturing and tracking system. A variable-focus liquid crystal lens is combined with a liquid crystal optical phased array and a liquid crystal optical wedge; the receiving powers of a coarse capturing detection module and a fine tracking detection module are detected in real time in a process of capturing and tracking space laser communication; according to change of the optical receiving power, the variable-focus liquid crystal lens dynamically controls the beam-divergence angle of a laser communication system; the beam-divergence angle is self-adaptively controlled in the capturing and tracking process; and the capturing time can be effectively increased while the tracking precision is ensured. Based on the laser communication capturing and tracking system disclosed by the invention, the invention further provides a capturing and tracking method for self-adaptively controlling the beam-divergence angle of the liquid crystal optical phased array; and a laser communication link is established through respective laser communication capturing and tracking systems of two communication sides.

The invention relates to a lifting carrying device. The lifting carrying device comprises a walking mechanism, a lifting mechanism, a floating mechanism and an unlocking mechanism; the floating mechanism comprises a base, a positioning part and balls, the base is fixedly connected to a lifting platform, the positioning part can slide on the bottom surface of a groove, and the balls are located between the positioning part and the bottom surface of the groove; the unlocking mechanism comprises an unlocking assembly and a floating table, positioning holes are formed in the floating table, and the positioning part is clamped on the floating table through the positioning holes. Through the walking mechanism, the lifting carrying device is controlled to walk to a preset position, the lifting mechanism lifts carried equipment such as batteries of electric automobiles to a preset height, and the floating table is generally used for bearing the carried equipment; the positioning part of the floating mechanism can move on the plane within a small range to carry out micro-adjustment on the position where the floating table is located, in this way, the unlocking assembly of the floating mechanism can accurately position the corresponding position, and then the carried equipment can be accurately and rapidly unlocked and replaced.

The invention provides a fuzzy self-adaption PID control based slope sliding preventing method and system and an electric vehicle, and relates to the field of electric vehicles. The method comprises the following steps: 1) determining whether a slope sliding preventing mode performing condition based on the electric vehicle running information; 2) performing a slope sliding preventing mode on thevehicle; treating motor rotating speed system error and system error change as fuzzy controller input variable; and outputting fine parameter adjusting values delta Kp and delta Ki of a rectifying PIDcontroller by a fuzzy algorithm; 3) calculating Kp and Ki in parameters of a rectifying PI adjuster based on the foundation PI parameters Kp0 and Ki0 and the fine adjusting values delta Kp and deltaKi; 4) calculating actual torque for a driving motor by the self-adaptive fuzzy PID algorithm; and 5) driving the motor based on the actual torque required by the motor, and controlling the rotating speed of a motor of the electric vehicle by obtained fuzzy self-adaption PID. According to the method, the motor torque is dynamically adjusted, so that the electric vehicle achieves the slope slidingpreventing function under different slope conditions.

The invention discloses a dendrobium stem slicer with a sieve piece. The dendrobium stem slicer comprises a frame (1), wherein a feeding hole (2) is formed on the frame (1); a multi-blade shaft (3) is arranged under the feeding hole (2); a common plane conveyor belt (6) is arranged under the multi-blade shaft (3); a first conveyor belt (9) is arranged under the common plane conveyor belt (6); a bar-shaped slot belt (5) is arranged on the first conveyor belt (9); a hairbrush (4) is arranged above the bar-shaped slot belt (5); a second conveyor belt (10) is arranged under the first conveyor belt (9); a bar-shaped baffle (11) is arranged above the second conveyor belt (10); a discharging hole (12) is formed on the bar-shaped baffle (11); a lower baffle block (13) is arranged under the discharging hole (12); a cutting device (14) is arranged above the lower baffle block (13). The dendrobium stem slicer can cut dendrobium stem raw material and is low in cost; the sliced medicinal materials are uniform in thickness; the dendrobium stem slicer is convenient to use and has drying and powder-removing functions.

The invention relates to a spatial sliding cable double-parallel cradle head with a rough and fine position and attitude regulation function, and belongs to a spatial sliding cable double-parallel cradle head. Motors with pulley blocks are fixedly arranged on a triangular fixed platform, wherein upright posts are fixedly arranged in the three corners of the fixed platform respectively; the pulley blocks are fixedly arranged on the two sides of the top ends of the upright posts respectively; six sliding cables are wound to the pulley blocks at the top ends of the upright posts from an output shaft of the motor respectively, and are connected with hooks on the upper surface of the upper plane of the cradle head; the upper and lower planes of the cradle head are connected through electric cylinders; the electric cylinders are connected with the upper plane through spherical hinges, and are fixedly connected with the lower plane of the cradle head through cylinder seats. The spatial sliding cable double-parallel cradle head has the advantages that the spatial sliding cable double-parallel cradle head is novel in structure; the position and the attitude are roughly and finely regulated, so that the movement requirements of a mechanism are met, the system working space is enlarged, and the system positioning accuracy and reliability are effectively improved.

The invention belongs to the technical field of harmonic drive, and particularly relates to a harmonic drive gear mesh and flexible gear deformation dynamic characteristic testing system which mainly comprises a base, a harmonic wave support, a motor support, a sliding frame and two laser displacement sensor horizontally-moving systems. A servo motor and a harmonic wave sensor are fixed on the motor support and the harmonic wave support respectively, and a high-sped camera is used for recording rotation of a wave generator. Two laser displacement sensors with the horizontal position and the vertical position adjustable are arranged on the sliding frame and used for detecting deformation of a flexible gear. The harmonic drive gear mesh and flexible gear deformation dynamic characteristic testing system is simple in structure and convenient to assemble and disassemble, different sensors and servo motors are selected to test various dynamic characteristics of harmonic wave reducers of different sizes, and a fine adjustment device of a pure mechanical structure is adopted to achieve precise adjustment.

The invention discloses a self-adapting tool clamp for pipeline welding, and relates to the technical field of pipeline welding. The self-adapting tool clamp for the pipeline welding is high in clamping stability and high in adaptability. The self-adapting tool clamp for the pipeline welding comprises a base, supporting columns and mounting blocks, wherein the supporting columns are arranged at two ends of the base; the mounting blocks are arranged on the supporting columns, and a supporting space is formed between the mounting blocks; a propping column for positioning a pipeline is arranged in the supporting space; an oil cylinder is arranged on the base; the propping column is connected to a propping shaft of the oil cylinder through a guide mechanism; the pipeline to be welded can be clamped through a clamping device, so that the stability of the pipeline in welding is greatly improved, and the pipeline welding efficiency is effectively improved; a sliding inclination block is arranged, and thus the pipeline with different diameter can be clamped, and the applicable scope is wide. The self-adapting tool clamp for the pipeline welding is reasonable in structure, novel in design,simple to fix and operate, and stable to fix; the pipeline welding quality is effectively improved; and the self-adapting tool clamp for the pipeline welding is convenient to popularize and use.

The invention relates to a rigidity testing device of a fixed type metal sheet stamping part, relating to a rigidity testing device and solving the problem that no rigidity testing device of the fixed type metal sheet stamping part exists at present. One end of a second screw is fixedly connected with an output shaft of a second motor and parallelly arranged above a beam pipe; the lower end surface of a guide rail is fixed on the upper end surface of the beam pipe arranged below the second screw; a supporting sliding seat is arranged on the beam pipe and connected with the guide rail slilably; a second nut is arranged on the second screw and fixed on the upper end surface of the supporting sliding seat; the upper end surface of a worm and gear mechanism is fixed on the lower end surface of the supporting sliding seat; the upper end surface of a fine-adjustment loading mechanism assembly is fixed on a worm connecting seat of the worm and gear mechanism; the upper end of a pressure sensor is fixedly connected with the lower end surface of a guide rod of the fine-adjustment loading mechanism assembly; and a press head is fixed on the lower end surface of the pressure sensor. The invention can realize movement or rotation with multiple freedom degrees by the press head of the rigidity testing device and accurately measure the rigidity of the metal sheet stamping part.

The invention discloses a multi-functional tunnel operation trolley, which comprises a chassis, a host platform and double movable arms, wherein the host platform is arranged on the chassis and is connected with the double movable arms through hinges; the double movable arms are rigidly connected through two connecting bridges; two movable arm hydraulic oil cylinders which synchronously act are arranged between the host platform and the double movable arms; the two ends of the movable arm oil cylinders are hinged with the host platform and the double movable arms respectively; the end parts of the double movable arms are hinged with a mounting platform; a leveling hydraulic oil cylinder is arranged between the mounting platform and the connecting bridges of the double movable arms; and the mounting platform is provided with a lifting platform, a truck mounted crane and a multidirectional adjusting manipulator. The multi-functional tunnel operation trolley has the technical effects that mounting work of an arching can be finished by only two or three operation staffs, mechanical operation of mounting of the arching can be realized, an I steel arching and a grid arching can be clamped and then lifted to any position in a tunnel, quick mounting is realized, the construction time is saved, the working efficiency is increased and other construction operations are facilitated.

The invention discloses a mounting platform of an unmanned airplane. The mounting platform comprises a gravity center adjustment assembly and a hanging assembly for hanging articles. The gravity center adjustment assembly is connected with a fuselage. The hanging assembly is hung onto the gravity center adjustment assembly. The gravity center adjustment assembly is provided with a plurality of first hanging parts for adjusting the horizontal position of the hanging assembly. The mounting platform is simple in structure and can be applied to the unmanned airplane, wherein the gravity center thereof can be quickly adjusted. Therefore, different articles can be hung onto the hanging assembly. Meanwhile, the mounting platform is good in damping and shock-filtering effect and is particularly suitable for the hanging of heavy articles.

The invention discloses a cavity pump light parameter oscillator of single-ended output. The oscillator comprises a laser pump source, a focusing lens, an input coupling mirror, a laser gain crystal, a diachronic mirror, a non-linear crystal, a first curved surface mirror, piezoelectric ceramic arranged on the non-linear crystal and a second curved surface mirror arranged on a reflected light path of the diachronic mirror. The input coupling mirror, the laser gain crystal, the diachronic mirror, the non-linear crystal and the first curved surface mirror form a laser resonant cavity. The first curved surface mirror, the non-linear crystal, the diachronic mirror and the second curved surface mirror form a signal light resonant cavity. The pump source carries out pumping via the focusing lens, population inversion is formed in a gain medium, laser oscillation is formed in the laser resonant cavity, and an oscillated laser generates signal light and forward and backward idle light via the non-linear crystal. Backward idle light is reflected by the second curved surface mirror and then is coupled and output with forward idle light generated by the non-linear crystal via the first curved surface mirror so as to realize single-ended output of intermediate infrared idle light.

The invention provides a serial-connected load carrying type rapid reflector structure. A flexible support is taken as a structure directly contacted with a reflector frame to constraint the free degree of a rapid reflector. A ball is arranged in the tail hole at the bottom end of the center fixing column of the flexible support, a rigid support formed by a ball seat and a compression spring adjusts the gap between the flexible support structure and the reflector frame, and the gap between the reflector during the motion and the reflector frame can be reduced, so that the rough adjustment of the deflection position of the reflector is realized. A position sensitive device receives the position signal of the reflector and feeds the signal back to a control system, a voice coil motor receives the instruction signal from the control system, so that the fine adjustment of the position of the reflector can be realized. The reflector frame is directly pushed by four voice coil motors that are staggered with the position sensitive device, so that the whole structure is compact.

The invention discloses an accurately-tunable optical fiber laser microwave source with low phase noise and narrow line width, comprising a pumping source, a wavelength division multiplexer, a superstructure active Bragg phase shifted fiber grating, an absorbing liquid, a photoelectric detector and electric control telescopic piezoelectric ceramic. A first end of the wavelength division multiplexer is connected with the pumping source; one end of the superstructure active Bragg phase shifted fiber grating is connected with a second end of the wavelength division multiplexer; one end of the superstructure active Bragg phase shifted fiber grating is immersed into the absorbing liquid; the photoelectric detector is connected with a third end of the wavelength division multiplexer; and the superstructure active Bragg phase shifted fiber grating is fixed on the lateral surface of the electric control telescopic piezoelectric ceramic.

The invention discloses a defective condition detection method based on curved and dotted singularity characteristics of an insulator of an overhead contact system of a high-speed rail. The method comprises the steps as follows: the overhead contact system is shot at night, so that an image of a to-be-detected insulator is obtained; the image of the to-be-detected insulator is subjected to contrast ratio enhancement and Gaussian filter and noise reduction processing; an approximate direction of the insulator in the image is determined through Radon transformation; then the insulator is determined and an angle is finely adjusted by using the curved singularity characteristics of the second generation curvelet transform; and finally a defective condition of the insulator is judged by the curved singularity characteristics of the second generation curvelet transform and the dotted singularity characteristics of the wavelet transform. The method can distinguish the insulator rapidly and correctly, and the state whether the insulator is damaged, a defective foreign matter blended state, and a type of the defective state are judged effectively. The actual input quantity is the image to-be-detected, the actual output quantity is a picture of the insulator which is positioned and result data of the defective state detection, the distinguishing effect is good, and the judgment result is accurate and reliable.

The invention discloses a machine for paving bricks on a pavement, and relates to the technical field of building machinery. Two parallel speed reduction units are arranged on a chassis frame and independently drive crawler wheels to move through gear transmission mechanisms; a plurality of front swing sliding plates are arranged at the front end of the chassis frame; a plurality of rear swing sliding plates are arranged at the rear end of the chassis frame; a paving platform is arranged on the front swing sliding plates and the rear swing sliding plates; the chassis frame is connected with the paving platform through a positioning sleeve in the middle of the rear end of the chassis frame; a leveling device comprises a leveling plate and a lifting mechanism; and a traveling induction controller is arranged on one side of the rear end of the chassis frame and consists of a hanging clamp, a stretching adjustment rod, an induction emitter and a contact induction rod. By the traveling induction controller, the traveling precision of a road paver is realized; due to the front and rear swing sliding plates, a paving mechanism can swing leftwards and rightwards, and over forth-and-back displacement of the paving mechanism can be avoided; the paving precision of pavement bricks is guaranteed; and the pavement suitability of the machine is greatly improved.

The invention discloses a calibration method and system of external parameters of vehicle-mounted cameras. The method comprises the steps of: S1, parking a vehicle at a designated position in a calibration site where a plurality of markers are disposed; S2, controlling each vehicle-mounted camera for image shooting, and then carrying out checking of camera mounting positions and angles on the basis of a principle of inverse perspective transformation; S3, finely adjusting the external parameters of the cameras step by step after checking in a preset adjustment range according to preset step length, and calculating the variance of a measurement result, which is collected and obtained by the cameras after each time of adjustment on the external parameters, and a standard result; and S4, selecting a set of external parameters, which correspond to a minimum value of the variance, as a calibration result. The method improves calibration accuracy of the external parameters of the cameras, can carry out simultaneous calibration of the multiple cameras, is fast and highly efficient, and can be widely applied in an industry of control of the vehicle-mounted cameras.

The invention discloses a multifunctional support trolley for tunnel arches. A scissor lifting table is installed on a trolley platform, general purpose manipulators special for tunnels are installed on two sides of the trolley platform, each general purpose manipulator special for tunnels comprises a telescopic boom, one ends of the telescopic booms are mounted on telescopic boom rotating stands, and the telescopic boom rotating stands are provided with rotating seats and telescopic boom rotating hydraulic cylinders; and one ends of derricking cylinders are installed on the telescopic boom rotating stands, the other ends of the derricking cylinders are installed on the telescopic booms, and manipulators are installed at front ends of the telescopic booms. The multifunctional support trolley has the advantages that installation work of the arches can be finished only by three or four operators, and labor force is saved; the mechanized operation during installation of the arches can be achieved; I-beam arches and grid arches can be lifted to any position in tunnels after being clamped, and arches can be fine adjusted rapidly in all directions; general purpose manipulators special for left and right tunnels work simultaneously, so that rapid installation is facilitated, construction time is greatly saved, and the working efficiency is improved; and the scissor lifting table is installed on the trolley platform, so that other construction operations and tunnel defect treatment besides arch installation are facilitated.

The invention discloses an all-round manipulator special for tunnels. The all-round manipulator special for tunnels comprise a telescopic arm. One end of the telescopic arm is mounted on a telescopic arm rotary support which is provided with a rotating base. The telescopic arm rotary support is provided with a telescopic arm rotary cylinder. One end of a luffing cylinder is mounted on the telescopic arm rotary support, and the other end of the luffing cylinder is mounted on the telescopic arm. A manipulator is mounted at the front end of the telescopic arm. The all-round manipulator special for tunnels has the advantages that the all-round manipulator special for tunnels is mounted on a tunnel arch support trolley, an arch can be mounted by only three or four operators, and labor is saved; mechanical arch erection can be realized, and safety is greatly improved for workers; after I-beam arches and grid arches are clamped, the arches are lifted to any position in a tunnel, the arches can be quickly finely adjusted in front-back, left-right and up-down directions; the left and right all-round manipulators special for tunnels are operated simultaneously, fast mounting can be achieved, construction time is saved greatly, and work efficiency is improved.

The invention discloses a special-shaped cross-section shield segment erector which comprises a lifting device and a translation device, wherein the lifting device and the translation device are installed on a shield tunneling machine main body. The special-shaped cross-section shield segment erector further comprises a track, a trolley traveling device and a segment clamping and adjusting device. The trolley traveling device can be movably connected with the track along the track and connected with the shield tunneling machine main body through the track, the segment clamping and adjusting device is connected with the translation device and connected with the lifting device through the translation device, and the lifting device is fixed on the trolley traveling device. The special-shaped cross-section shield segment erector can meet assembly movement of special-shaped cross-section shield segments, completes the assembly movement intelligently, meets working condition requirements, and has the advantages of being convenient to control and strong in flexibility. Interference is not generated easily.

The invention discloses a test bed for a hydraulic brake actuating mechanism, which comprises a real-time platform, an ICC (integrated circuit card) hydraulic brake system and a hydraulic test module. The hydraulic test module comprises a power source, a flow sensor, three pressure sensors with the same structures, five two-position and three-way valves with the same structures, a normally open two-position and two-way valve, two normally closed two-position and two-way valves with the same structures and a driving system. The driving system comprises eight relays with the same structures, wherein the relays include a power source relay, a first electromagnetic valve relay, a second electromagnetic valve relay, a third electromagnetic valve relay, a fourth electromagnetic valve relay, a fifth electromagnetic valve relay, a sixth electromagnetic valve relay, a seventh electromagnetic valve relay and an eighth electromagnetic valve relay. The real-time platform is connected with the ICC hydraulic brake system through an electric wire and connected with the hydraulic test module through a DS2211 type multi-way I / O (input / output) board and a driving system, and the ICC hydraulic brake system is connected with the hydraulic test module through a pipeline.

The invention relates to a box folding machine of an industrial packing assembly line. The box folding machine is used for automatically folding and shaping different types of paper boxes and comprises a material jacking mechanism for replacing, positioning and conveying a paper box to be folded, a material conveying mechanism for catching the paper box to be folded conveyed by the material jacking mechanism in a vacuum suction manner, a folding and shaping mechanism for receiving the paper box to be folded conveyed by the material conveying mechanism and folding and shaping the paper box along box folding lines, an adjusting mechanism which is connected with the folding and shaping mechanism and is used for adjusting the folding and shaping mechanism to adapt to the box folding sizes of different paper types, an electrical mechanism for respectively controlling operations of the material jacking mechanism, the material conveying mechanism, the folding and shaping mechanism and the adjusting mechanism, and a stander for fixing the material jacking mechanism, the material conveying mechanism, the folding and shaping mechanism, the adjusting mechanism and the electrical mechanism. Compared with the prior art, the box folding machine has the advantages of being high in adaptability to different sizes, accurate in adjustment and positioning, and the like.

The invention relates to an adjustable rotating axle mechanism, which is installed between the seat body and the cover body of an electronic product. The adjustable rotating shaft mechanism comprises a fixing part, a rotating part and an elastic element arranged between the fixing part and the rotating part, wherein, the fixing part and the rotating part can be rotationally assembled into a whole through the elastic element, a groove is arranged on the rotating part, a limiting groove is arranged on the fixing part, and the free end of the elastic element extends into the groove from the limiting groove, and can move in the groove and the limiting groove. During the expanding process of the cover body, the elastic element is taken as the rotating part to promote an auxiliary part rotationally, during the trimming process, the rotating angle of the trimming is controlled through the width of the groove, and simultaneously, the relative rotational speed of the both is controlled through a cushioning mechanism during the trimming. The rotating axle mechanism utilizes the different position relations of the elastic element during the action process to realize the trimming of the expanding angle between the cover body and the seat body after the cover body is expanded, thereby to realize the trimming of the photographing visual angle of a camera, and through expanding the expand e photographing visual angle, images or pictures at the broader angle are obtained.

The invention discloses an experimental method for shearing of a structural surface of a columnar jointing. The method comprises adjusting a rock structural surface to be located in a shearing seam of upper and lower shearing boxes; sleeving screw sleeves to five internally-inserted vertical screws, using plastic films to separate and wrap; vertically moving the internally-inserted vertical screws through adjusting rods, so that the structural surface of the columnar jointing rock is located between the shearing seam; selecting proportional epoxy resin mortar to form epoxy resin mortar; and pouring the epoxy resin mortar into the upper and lower shearing boxes for cooling and solidification. The invention further discloses an experimental apparatus comprises the upper and lower shearing boxes, the internally-inserted vertical screws and the adjusting rods, wherein a bottom of the lower shearing box is provided with vertical screw holes, walls of the lower shearing box are provided with horizontal screw holes, and contacted parts of the adjusting rods and the internally-inserted vertical screws form worm structures. According to the invention, fine adjustment of the rock position can be realized, a surface of the epoxy resin mortar can be always maintain as a plain, a molding is relatively good, problems of rock sinking in cement mortar can be solved, and thus the structural surface of the rock can be easily positioned.

The invention discloses a voice recognition method and system based on incremental word graph re-scoring. The method comprises the steps that: a to-be-recognized voice signal is obtained and acousticfeatures are extracted; a likelihood probability corresponding to the acoustic features is calculated by using a trained acoustic model; a decoder constructs a corresponding decoding network, obtainsa word graph of a state level from the decoding network and obtains a word graph of a word level by updating the word graph and determining the word graph; state-level word graphs of remaining decoding networks are determined, and the determined state-level word graphs are combined with the obtained word-level word graphs to generate a decoded word graph; a target word graph is obtained through afinite-state transcriber merging algorithm according to a re-scoring language model obtained through one-time decoded word graph and small corpus training; and an optimal cost path word graph of the target word graph is obtained, then a corresponding word sequence is obtained, and the word sequence is taken as a final recognition result. According to the invention, the calculation amount of determination after the decoding of a common decoder is finished is reduced, and the decoding speed is accelerated; the word error rate of speech recognition in a specific scene is reduced, and the accuracyis improved.

The invention discloses a mold clamping device. The mold clamping device comprises a base; a rectangular hole is formed in the front surface of the base; first bolts are respectively arranged on two sides of the base; the ends of the first bolts penetrate through the side surface of the base, and extend into the base; a slide plate is arranged in the base, and is provided with chutes; two clamping plates are arranged on the slide plate; the clamping plates are positioned in the chutes, penetrate through the top of the base, and extend above the base; and one sides, near the inner wall of the base, of the clamping plates are in threaded connection with the ends of the first bolts extending into the base. The mold clamping device can clamp different molds through setting first grooves to widen the application range, can move the clamping plates left and right through setting the first bolts to conveniently mount and clamp the molds, and can move the clamping plates up and down through setting second bolts to achieve the fine adjustment effect of the molds and convenience for machining.