157results about How to "Increase training difficulty" patented technology

The invention discloses a crowd density estimation method based on a multi-scale convolutional neural network, and in order to improve the accuracy of crowd density estimation in the field of video monitoring, the invention provides a network structure based on the multi-scale convolutional neural network, which can accurately predict a crowd density map in a scene. According to the method, feature fusion of different receptive field information is carried out by using the cavity convolution and the original convolution, and different levels of semantic information of the feature map under different resolutions are fused, so that the crowd density map with higher quality is generated. An experiment is carried out on a current popular ShanghaiTech data set, a UCF_CC_50 data set and a WorldExpo '10 data set, and an average absolute error (MAE) and a mean square error (MSE) are used as evaluation criteria. The result shows that compared with the previous method, the network model has theadvantages that the MAE value and the MSE value are reduced, and the crowd density estimation accuracy is improved.

The invention relates to ball serving equipment, in particular to table tennis ball serving equipment for sports training and aims at achieving the technical purpose of providing the table tennis ballserving equipment for sports training with a good training effect and a higher training difficulty. The invention provides the table tennis ball serving equipment for sports training. The equipment comprises a box body, a feeding hopper, a feeding tube, a ball discharging tube, a buffering cushion, an intermittent feeding device and the like; the feeding hopper is installed on the left side of the top of the box body, the feeding tube is installed below the feeding hopper, the feeding hopper is communicated with the feeding tube, the feeding tube is communicated with the box body, the ball discharging tube is horizontally installed in the middle of the left side face of the inside of the box body, openings are formed in the left and right ends of the ball discharging tube, and the buffering cushion is installed in the middle of the bottom of the ball discharging tube. According to the equipment, balls are constantly fed to the ball discharging tube by the intermittent feeding device,an ejecting device is driven by a driving device to eject the balls out so that table tennis training of a user can be conducted to achieve the effects of good training effect and higher training difficulty.

The invention provides a knowledge inference method and system of a knowledge graph based on meta-knowledge and a medium, the training difficulty does not significantly increase with the increase of the scale of the knowledge graph, the inference accuracy is more advantageous, and the method comprises the following steps: step 1, data set construction: establishing a data set composed of knowledgegraph triples: a head entity, a relationship and a tail entity; step 2, data re-processing: re-learning the initialized embedded vectors of the entities in the data set through a data re-processing model to obtain semantics of the entities and obtain final embedded vectors of the entities; step 3, model training: constructing a knowledge inference model, and inputting triples in the data set subjected to data reprocessing into the knowledge inference model for model training to obtain a trained knowledge inference model; and step 4, knowledge reasoning: scoring the alternative tail entities in the knowledge graph triad through the trained knowledge reasoning model, and selecting the tail entity with the highest score as a reasoning result of the knowledge reasoning model.

The invention relates to a ball server, in particular to a table tennis server. Therefore, the invention aims to provide a table tennis server which can prevent arm ache and improve serving efficiency. The table tennis server comprises a support, a stand, a stopping block, a swinging seat, a first ball tube, a funnel, a first spring, a launching device, a first strut, a sliding sleeve, a rack, a clamping rod, a third spring and the like; and the stand is mounted on the left side of the top of the support, the stopping block is fixed on the upper portion of the left side surface in the stand, the swinging seat is hinged to the right side of the upper portion of the stand, and the first ball tube capable of launching table tennis balls is arranged on the bottom of the swinging seat. Througha motor, a sector gear rotates clockwise, therefore, the table tennis balls can be launched through the launching device, people do not need to throw out the table tennis balls manually, thus, the labor intensity of people can be reduced, and the training efficiency can be improved; and by regulation of the launching angle of the table tennis balls, the difficulty of training for athletes can be increased.

The invention relates to serving equipment, in particular to table-tennis random-serving equipment. Through the table-tennis random-serving equipment, the technical aims that table tennis can be served out in different directions at random, the training effect is good, and the training requirements of training persons are met are achieved. The table-tennis random-serving equipment is characterizedby comprising a supporting base, a supporting rod, a containing frame, a 7-shaped plate, a first bearing base, a first rotating shaft, a hard tube, an arc plate, a discharging tube and the like; the7-shaped supporting plate is fixedly connected to the right side of the top of the supporting base, five emitting tubes are evenly and fixedly connected to the right side face of the 7-shaped supporting plate at intervals, and a feeding tube is connected to the left sides of the tops of the emitting tubes. According to the table-tennis random-serving equipment, the table tennis is put into the containing frame, falls into through holes at random through front-and-back swinging of the hard tube, and is emitted out through one emitting tube, randomness is better, the training difficulty is improved, the training effect is thus better, training persons do not need to look for other persons for sparring, and the training requirements are met.

The invention belongs to the technical field of speech translation, and relates to a BERT embedded speech translation model training method and system and a speech translation method and device.The training method comprises the following steps: collecting model training data; pre-training a BERT model by utilizing a source language in the training data, taking the pre-trained BERT model as a machine translation model coding layer, training a machine translation model by utilizing paired source language and target language texts, and obtaining a plurality of machine translation models by setting the number of decoding layers in the machine translation model; training a speech recognition model by using the speech translation data of the source language pairs; and taking the trained speech recognition model coding layer as a speech translation model coding layer initialization parameter, weighting the outputs of the plurality of machine translation models in an entropy weighting mode to train a speech translation model, and completing speech translation model training in combination with a model loss function. The recognition performance of the speech translation model is improved, and then the speech translation efficiency and quality are improved.

The invention relates to the technical field of martial art training devices, in particular to a simulated training system for martial art. The system comprises a chassis, a supporting column is arranged on the chassis, and the supporting column is connected with the chassis through an elastic piece; a striking body is arranged on the supporting column, a striking arm is arranged on the striking body, and the striking arm is hinged with the striking body; elastic structures are arranged on the outer surfaces of the striking body and the striking arm, the elastic structures comprise elastic sleeves, and a plurality of first elastic airbags and second elastic airbags are arranged on the elastic sleeves; air inlets are formed in the first elastic airbags and the second elastic airbags, a plurality of air outlet pipes are arranged on the first elastic airbags and used for being communicated with other first elastic airbags or the second elastic airbags, and second air outlet pipes communicated with the outside are arranged on the first elastic airbags and the second elastic airbags. The provided simulated training system for martial art can solve the problems that an existing trainingdevice is more inflexible, the confrontation effect cannot be provided, and the training effect is poor.

The invention discloses auxiliary equipment for boxing training teaching, and relates to the technical field of boxing training equipment. The auxiliary equipment comprises a base, an electric telescopic column is fixedly installed at the top of the base, a supporting frame is rotatably connected to one side of the electric telescopic column, a first sliding groove is formed in the supporting frame, and a lead screw is rotatably connected to the interior of the first sliding groove; a first motor is fixedly installed on one side of the supporting frame, and the output end of the first motor is fixedly connected with the lead screw. The auxiliary equipment for boxing training teaching has the beneficial effects that the hanging ball is combined with the support, the equipment is convenient to install and move, and the moving device is installed at the top of the hanging ball and located on one side of the support, so that when the hanging ball rebounds under the action of force, the hanging ball can move back and forth, the auxiliary equipment is matched with a pulley block and a motor at the top of the hanging ball, and the lifting and rotation of the boxing hanging ball are controlled, so that the real boxing condition is simulated to the greatest extent, and the reaction capability and sensitivity of a user are improved.

The invention relates to a 360-degree omni-directional intelligent movable target drone, and belongs to the field of shooting training equipment including target drone equipment for military training,athlete training, outward training and the like. The 360-degree omni-directional intelligent movable target drone comprises a fixing seat and a movable base. The fixing seat is carried by the movablebase and is provided with target plates by the aid of a target frame, the movable base is provided with travel wheels, the travel wheels are Mecanum wheels and are connected with travel driving devices, and a control system is connected with the travel driving devices. The 360-degree omni-directional intelligent movable target drone has the advantages that the Mecanum wheels are used as the travel wheels, accordingly, the 360-degree omni-directional intelligent movable target drone can omni-directionally move, the target plates carried on the 360-degree omni-directional intelligent movable target drone can flexibly move, and the training difficulty can be increased for trainees during training.

The invention relates to the technical field of fitness equipment. The invention discloses a balance training instrument capable of adjusting the training difficulty. The balance training instrument comprises a base, a protective baffle is fixedly connected to the upper surface of the base, a motor is fixedly connected to the interior of the base, a first rotating shaft is fixedly connected to theouter side of the motor, a first transmission gear is fixedly connected to the surface of the first rotating shaft, and a second transmission gear is fixedly connected to the outer side of the firsttransmission gear. The rotating handle is rotationally arranged on the reversing device, the reversing device is meshed with the sliding rod, the sliding rod moves left and right, the sliding rod drives the speed adjusting gear to move left and right, the rotating speed is increased when the speed adjusting gear is meshed with the second transmission gear, and the rotating speed is decreased whenthe speed adjusting gear is meshed with the third transmission gear, so that the effects that the exercise difficulty can be improved by adjusting the rotating speed, and the fitness equipment can besuitable for different crowds or crowds in different exercise stages are achieved.

An automatic badminton launching device for physical education training is disclosed and comprises a mounting frame, the top of the mounting frame is arranged on a roof, a first cylinder is arranged below the mounting frame, a first telescopic rod is arranged in the first cylinder, a first pressure sensor is arranged on the first telescopic rod, a vibration mechanism is arranged on the ground, a second cylinder is arranged on the vibration mechanism, and a hopper is arranged on the second cylinder. A third cylinder is arranged in the second cylinder, a fourth sliding rail is arranged on the left of the vibration mechanism, a fourth sliding block is arranged in the fourth sliding rail, a supporting rod is arranged on the fourth sliding block, a connecting rod is arranged on the supporting rod, an angle swing mechanism is arranged on the connecting rod, a servo motor is arranged on the angle swing mechanism, a mounting rod is arranged on the servo motor, a first racket is arranged on themounting rod,according to the device, automatic control is achieved through the controller, an operator needs to control the strength, the shuttlecock is rebounded into the third cylinder through thefirst racket, the accuracy and strength of hitting the shuttlecock by the operator can be exercised, meanwhile, the shuttlecock picking frequency is reduced, the shuttlecock picking time is shortened, and shuttlecocks can be automatically loaded into the first cylinder.

The invention relates to the technical field of shooting sports training devices, in particular to an advanced type device for shooting sports training and a using method. A servo motor is used to drive a rotating shaft to rotate, then a crank rotates with a sleeve, a pull rope and a return spring act on a force application rod, and the force application rod swings back and forth and rotates witha big gear. A small gear is driven to rotate by the big gear, and a coaxial cam is driven to rotate. Cooperating with the gravity of the parts, the cam makes a lower moving plate move up and down, andan upper moving plate and the parts on the moving plate are also lifted and lowered by a guide rod. When a driven gear is raised and lowered, the driven gear also works with a No.1 rack to make a No.1 shaft reciprocate, so that a moving nut reciprocates, and an upper No.1 target assembly also moves synchronously. As a shooting target, the No.1 target assembly significantly increases the difficulty of shooting training compared with a fixed-position target. The device is suitable for those who aim to improve shooting skills in advanced training.

The invention provides an abdominal muscle exerciser with an adjustable headrest, comprising a base, a supporting column, a seat bracket, a seat, a backrest bracket, a backrest, a foot bar bracket, a first foot bar and a second foot bar, wherein the base is fixedly connected with the lower end of the supporting column; a rotary pair part is arranged at the upper end of the supporting column; the front end of the rotary pair part is connected with the seat bracket and the seat; the front end of the seat bracket is connected with the foot bar bracket; the foot bar bracket is provided with the first foot bar and the second foot bar; the back end of the rotary pair part is connected with the backrest bracket and the backrest; hand rest brackets are arranged at the two sides of the lower part of the backrest and the backrest can rotate up and down along the rotary pair part; a triangular positioning frame and a load bearing bracket are arranged below the backrest bracket; and a loading disc is arranged on the load bearing bracket. The abdominal muscle exerciser disclosed by the invention is a special fitness machine which can increase the load and improve the exercising difficulty, and is used for exercising abdominal muscle.

The invention provides a burying-free combined type quincuncial pile which comprises a base pile, wherein a magnetic device for fixing is arranged in the base pile; a plurality of detachable adjustment piles, which are wooden piles, are arranged above the base pile; treading piles are arranged above the height adjustment piles; sliding chutes are formed in the treading piles; sliding columns capable of sliding are arranged in the sliding chutes; the upper sides of the sliding columns are fixedly connected with foot pedals which can be fixedly or movably connected with the treading piles. The quincuncial pile can be directly adsorbed on a steel plate under magnetic force; in the quincuncial pile construction process, complicated manual labor is not needed; furthermore, the quincuncial pile can be replaced conveniently and quickly and is height-adjustable and multifunctional, and construction or adjustment of the quincuncial pile can be completed with no auxiliary tool.

The invention discloses a boxing practice response training device for students, and relates to the technical field of training instruments. The training device comprises a base, a supporting column is fixedly installed at the top of the base, a supporting rod is slidably connected into the supporting column, a connecting block is slidably connected to the top of the supporting rod, a first motor is fixedly installed on one side of the connecting block, an eccentric cam is fixedly installed at the output end of the first motor, and one side of the eccentric cam is rotationally connected with a connecting rod. The boxing practice response training device for students has the beneficial effects that: an electric telescopic rod in a training plate is matched with a telescopic frame, the electric telescopic rod is used for driving the telescopic frame to enable a stress plate to extend out of limiting holes, the attention of a trainee is attracted, the trainee cannot predict the motion trails of the stress plate in the multiple limiting holes, and the device helps to improve the sensitivity of the trainee; and a pressure sensor is installed in the stress plate, and the punching strength of the trainee each time can be recorded.

The invention relates to an automatically controlled shuttlecock serving motor machine which is composed of a motor, a snail type shell, a funnel, a supporting frame, scored pulleys and rails, wherein the snail type shell is connected with the motor and the funnel through bolts; the supporting frame is connected with the motor and the funnel through a supporting shaft; the motor is connected with the supporting frame through bolts; the scored pulleys are connected with the supporting frame through bearings; the scored pulleys roll on the rails. The automatically controlled shuttlecock serving motor machine is simple, reasonable and novel in structure, is convenient in operation, is used for performing partner training by replacing a shuttlecock training partner, is capable of increasing the training effect and is high in practicability.

The invention discloses a simulated helicopter suspension lifesaving training system and a training method. The system comprises a simulated offshore lifesaving training pool. The training pool is a swimming pool capable of simulating sea waves. A simulated helicopter lifesaving system is arranged on the training pool and comprises a hovering table and a helicopter simulated lifesaving capsule. Asupporting structure of the hovering table is arranged on the ground near the training pool. The hovering table is arranged above the water surface of the training pool. The hovering table supports the helicopter simulated lifesaving capsule. A lifesaving winch is arranged on the helicopter simulated lifesaving capsule.

An agile ladder structure for football training, comprising a fixed ladder frame, a hurdle and a storage mobile car; the structure body is provided with a fixed ladder frame; The distance adjustment placement groove and the ladder frame connecting groove are formed; the side wall of one end of the fixed ladder frame is provided with a ladder frame connecting block; the other end of the fixed ladder frame is provided with a ladder frame connecting groove; the upper end of the fixed ladder frame Ladder distance adjustment placement slots are symmetrically opened; ladder bars are installed inside the ladder distance adjustment placement slots; the upper end of the fixed ladder frame is also symmetrically connected and installed with hurdles; wheel composition. The agile ladder structure used for football training is provided with a ladder frame connecting block that fits closely with the ladder frame connecting groove, and the ladder frame connecting block can be embedded and installed inside the ladder frame connecting groove. The side is inserted into the connecting groove of the ladder frame for fixed connection, which is convenient for the lengthening and use of the structure body.

The invention relates to a volleyball smashing training device. The problems that an existing volleyball smashing training device is fixed in ball serving direction, balls cannot be recycled, and thevolleyball smashing accuracy cannot be trained are effectively solved. The training device comprises a bottom plate, wheels are connected with the bottom plate, and the training device is characterized in that volleyball net columns are arranged on the bottom plate, a ball returning box is arranged on the bottom plate, and a random box is arranged at the back end of the ball returning box and communicated with a ball entering box; the ball returning box is communicated with the ball serving box, several ball passages are arranged in the ball returning box, and several ball serving ports are formed in the ball serving box; several ball entering ports are formed in the ball entering box, two baffle plates are arranged in each ball entering port, and a clamping plate is arranged on the innerside of each baffle plate; the clamping plates are connected with air injection launching devices, the ends of the air injection launching devices are arranged in the ball serving ports, and the airinjection launching devices synchronously launch volleyballs and drive the corresponding clamping plates to slide upward so that a user can throw the volleyballs into corresponding ball entering ports; the device is ingenious in structure, the training purposes are diversified, the practical circumstances faced in training are combined, and the practicability is high.

A tennis ball serving device solves the problems that an existing tennis ball serving device is single in function and low in application range, and different training modes cannot be adjusted according to the levels of different learners to improve the tennis technology of the learners. The tennis ball serving deviceincludes a lifting frame, an angle-adjustable launching cylinder, a driving shaft and a racket frame capable of rapidly swinging back and forth, an ejection rod is arranged in the launching cylinder, an ejection rack is fixedly connected to the ejection rod and meshed with an incomplete gear, the incomplete gear is coaxially and fixedly connected with a first regular polygon prism, and the first regular polygon prism is rotationally connected with a shell. The driving shaft is provided with a plurality of driving teeth which are circumferentially and uniformly distributed, the front ends of the driving teeth are flush, the lengths of the rear ends of the driving teeth are sequentially increased, and the first regular polygon prism is provided with an adjustable driven gear. The tennis ball serving device is diversified in function, different modes can be switched for training, the training difficulty and the training intensity can be adjusted according to the level of a learner, the application range is wide, and the tennis skill of the learner can be improved conveniently.

Provided is a simulated helicopter occupant sea escape lifesaving training system. A simulated sea lifesaving training pool is included, the pool is a swimming pool capable of simulating ocean waves,a helicopter occupant escape training device is included, the device contains a training caisson and a crane, the crane is fixed on the ground of the side of the training pool, the training caisson simulates a helicopter, the training caisson is hung in the training pool by the crane, and the training caisson can be rolled in any direction in the training pool.

The invention discloses a walking rehabilitation training and evaluating device which comprises a walking platform and an augmented reality system. The walking platform can achieve motion switching among a horizontal position, an uphill position or a downhill position, and a displayer mechanism in the augmented reality system is fixedly connected. When the walking platform performs motion switching, the augmented reality system can change along with position changes of the walking platform. The walking rehabilitation training and evaluating device is convenient to use, the walking platform can simulate the horizontal position or the uphill position or the downhill position, free switching can be achieved, the training difficulty can be further added by introducing a step height scaleplate pole, and training is more interesting by combining the augmented reality environment.

The invention discloses a multifunctional balance rehabilitation training machine based on a Stewart platform. The machine comprises a base, the Stewart platform, a pedal and armrests; the armrests and the Stewart platform are mounted on the base, and the pedal is fixed on the Stewart platform. The multifunctional balance rehabilitation training machine is high in structural stability and motion precision, the motion in the six-degree-of-freedom direction of the three-dimensional space can be achieved, balance training with different strengths can be designed according to demands of people, and the multifunctional balance rehabilitation training machine integrates the functions of massaging the feet and promoting balance training.

The invention relates to a multifunctional intelligent target machine. A base, a rotation disc and an installing disc are included. Four universal wheels symmetrically distributed are fixedly arrangedat the bottom of the base. The rotation disc is fixedly arranged on the top of the base. The bottom of the rotation disc is fixedly provided with a linkage rod located in the base. The outer portionof the linkage rod is movably provided with a transmission mechanism. The installing disc is located on the top of the rotation disc. A fixing mechanism is movably arranged in the installing disc. A target rod is movably arranged on the top of the installing disc, and a fixing table is fixedly arranged on the top of the target rod. Through the arrangement of a clamping-fit mechanism, a target plate can be placed in the fixing table and abuts against coinciding blocks, the two sides of the target plate extrude the coinciding blocks, springs conduct bounce and clamping, and the installing process is simpler and more convenient. By utilization of the arranged transmission mechanism and the arranged rotation disc, when shooting personnel conducts shooting, a motor drives the rotation disc to rotate through transmission, the target plate can rotate, the shooting difficulty is increased for the shooting personnel, and the shooting training effect of the shooting personnel is better.

The invention discloses a balance beam core stable strength training and monitoring device based on a projector, and relates to a balance training device. The device solves the problems that an existing balance beam is single in training means, and lacks the balance beam core stable strength training and monitoring means combined with a projection system. The balance beam core stable strength training and monitoring device based on the projector conducts image transmission on a surrounding projection screen through the projector to enable a trainer to conduct training under the visual impact environment, so that the aim of intercoordination whole between the visual sense and the body is achieved. The device can reflect the balance state of the trainer in real time and enable the trainer to know the balance state of himself in real time, and therefore the trainer can adjust the training state of himself initiatively. The device has the communication function and can transmit the detected balance state in the training process to other devices. The balance beam core stable strength training and monitoring device based on the projector is suitable for the fields such as physical education, medical treatment, aviation and navigation.

The invention belongs to the field of sport equipment, and particularly discloses an intelligent ping-pong ball serving machine. The machine comprises a base frame vehicle, a ball serving mechanism, aball serving motor, an allocating mechanism, a ball conveying part and a controller. The ball serving mechanism comprises a ball distributing plate and a ball serving ring. The ball distributing plate comprises a ball inlet in the center of the ball distributing plate, a ball sliding tube and a ball driving part and is suitable for sliding ping-pong balls from the ball inlet to an edge part to beserved; a sliding groove matched with the ball driving part is arranged in the ball serving ring, and a ball serving tube is arranged on the edge. The allocating mechanism and the ball distributing plate are fixed to distribute and block the ping-ping balls. The ball distributing plate is assembled in the ball serving ring and is fixed to a support of the base frame vehicle through a shaft connecting part, and the ball distributing plate rotates around the axis of the ball serving ring and relative to the ball serving ring. The ball conveying tube of the ball conveying ball is communicated with the shaft connecting part on one side, and is suitable for the ping-pong balls to be conveyed to the ball inlet through the shaft connecting part. The control device controls the ball serving machine to change ball serving positions and adjust the longitudinal and transverse serving angles, so that serving modes are complex, the training difficulty is high, and training requirements of different levels and different persons are met.