119results about How to "Sports safety" patented technology

The invention relates to a method for planning the shortest path in robot obstacle avoidance. The method comprises steps as follows: a probability grid map is acquired through convolution operation; an original A*algorithm is improved, and a cost function of the improved A*algorithm is obtained; on the basis of the probability grid map, the improved A*algorithm is adopted for shortest path searching from the starting point to the end point. The probability grid map is obtained through improvement of the original grid map, and the shortest path searching is performed in the improved A*algorithm on the basis of the probability grid map. According to a path planned with the method, a robot can avoid an obstacle for a certain distance and can more safely and reliably move.

The invention relates to a stair-climbing method for a crawler-type mobile robot with guide arms, which is characterized by comprising the following steps: step one: the robot moves near the stair, the guide arms rotate downward; the robot is lifted after being contacted with the stair step and climbs the stair forward; when an ultrasonic and infrared distance-measuring sensor on the robot measures that the distance between the robot and the object at the front is larger than the width of the stair step and judges that the robot climbs to the top of the stair, the robot can stop climbing; step two: the guide arms rotate downward till the front ends of the guide arms are contacted with the ground; when the rotating shafts of the guide arms generate torque M which is larger than the set value, the guide arms stop rotating, the robot climbs upward continuously, the guide arms are separated from the ground with the climbing of the robot, the torque M disappears and the robot stops climbing; step three: the step two is repeated, a two-dimensional attitude sensor measures that the inclined angle Phi between the body and the horizontal plane is reduced with the climbing of the robot, and when the robot climbs continuously till the inclined angle Phi is not reduced, the robot stops climbing, the guide arms rotate backward and stop rotating when the inclined angle Theta between the guide arms and the body is 45 degrees.

The invention discloses a self-adaptation training control method of a parallel lower limb rehabilitation robot and the rehabilitation robot. The method comprises the steps that lower limb muscle activity and contractility state are estimated according to collected electromyographic signals and impedance model parameters of the robot are adjusted in a self-adaptation mode according to the lower limb muscle activity and contractility state; meanwhile, interaction acting force between a patient and the robot is obtained, and calculation and correction of the motion of the robot are achieved through a recognition result and an impedance model; a master control portion of the rehabilitation robot provides online trajectory planning and inverse kinematics, control instructions are sent to a controller and a driver of a corresponding joint, and self-adaptation training control over the robot is achieved. Intelligentization can be achieved in the rehabilitation process, and the fundamental practical significance and application value for improving the patient rehabilitation effect and improving the patient rehabilitation initiativeness and motivation are achieved.

The invention discloses an automatic high-precision indoor rapid positioning method. A positioning system comprises a hardware system and a software system, the hardware system comprises a color image acquisition apparatus, a laser speckle projection apparatus, a laser speckle image acquisition apparatus, a holder control apparatus, a communication apparatus, and a central control apparatus, and the software system comprises a laser speckle projection system, a color image and laser speckle image acquisition system, an image processing system, an image matching system, a mode recognition system, a holder control system, a central control system, and a path planning and control system. According to the scheme of the method, software and hardware are combined, an indoor positioning device accomplishes intelligence and systematization of the whole process of personal/household service robot characteristic information acquisition and input, indoor object image acquisition and matching recognition, indoor object positioning, path planning, and robot motion control, and methods of indoor positioning and path planning and control are more accurate and efficient.

A waist exercise device has an annular rail, a slide base slidably mounted on the annular rail, and a balance weight connected to the slide base via a rope. A user wears the waist exercise device on his waist and twists his waist and moves his hips to fling the balance weight to revolve around the annular rail and to drive the slide base to slide along the annular rail. Thus, muscles in the waist, the abdomen, and the hips of the user are trained and strengthened. Since the annular rail does not repeatedly press against the waist and the abdomen, exercising with the waist exercise device does not cause damage to the muscles in the waist, the abdomen, and the hip, does not injure the spine, and is safe.

The present disclosure contemplates portable strength-training apparatus, system, and method for conducting strength-training exercises using resistance bands. The apparatus of the present disclosure can serve as an anchor while conducting strength training exercises using resistance bands. The apparatus and system of the present disclosure can allow for safe strength-training exercises at varying resistance levels while allowing exercises at any angle. The apparatus, system, and method of the present disclosure may allow a user to strength train with resistance bands throughout entire body. The apparatus and system of the present disclosure may include a base platform with base attachment mechanisms that can be coupled with resistance bands which are in turn coupled with human interface mechanisms such as grips, wraps, or bars.

The instant invention relates to a kit for converting an elongated flexible noodle-type personal floatation device into a floating exercise assembly. Specifically, the rider straddles the flexible noodle-type device while rotating the first exercising assembly and/or the second exercising assembly for exercising the user's lower and upper body, respectively.

The present disclosure contemplates portable strength-training apparatus, system, and method for conducting strength-training exercises using resistance bands. The apparatus of the present disclosure can serve as an anchor while conducting strength training exercises using resistance bands. The apparatus and system of the present disclosure can allow for safe strength-training exercises at varying resistance levels while allowing exercises at any angle. The apparatus, system, and method of the present disclosure may allow a user to strength train with resistance bands throughout entire body. The apparatus and system of the present disclosure may include a base platform with base attachment mechanisms that can be coupled with resistance bands which are in turn coupled with human interface mechanisms such as grips, wraps, or bars.

A vertical exercise device for triggering sympathetic and/or parasympathetic system responses comprising at least one foot support and a handlebar assembly. The foot support(s) may have a support surface configured to contact the entire ball of a user's foot during use, which may be inclined at an angle and substantially flat. The handlebar assembly may have at least an upper handle configuration and a lower handle configuration, and be adapted to keep a user's wrist within a safe range of motion during use. The positioning and orientation of foot support(s) and the handlebar assembly may each be independently adjustable in various aspects, such as horizontal and vertical displacement, rotation, tilt, angle, etc. The angle and depth of the support surface may each be independently adjustable. A horizontal vibration system may move one or more components of the device along the horizontal plane. Handlebars may have thumb plates to restrict grip.

The invention relates to an active and passive combined variable-instantaneous-center flexible-rope-driving lower extremity exoskeleton robot and a control method. The active and passive combined variable-instantaneous-center flexible-rope-driving lower extremity exoskeleton robot includes a control box (I), a waist structure (II), a knee joint mechanism (III), a shank part (IV) and an ankle jointmechanism (V). Control elements are disposed in the control box (I), and the waist structure (II) includes a back plate, a battery, a drive, a lumbar support, a waist and back flexible joint, a hip joint and a thigh connector, wherein a clutch is added to the drive part to realize the active and passive combination. The knee joint mechanism (III) is of a rolling cam variable-instantaneous-centerstructure and connected with thighs and shanks. The shank part (IV) includes supporting shanks and flexible straps, and the length can be adjusted. The ankle joint mechanism (V) is connected with theshanks. A variable-instantaneous-center mechanism of the active and passive combined variable-instantaneous-center flexible-rope-driving lower extremity exoskeleton robot has high bionic properties and can adapt to human body movement; the structure is simple, and the mass is small; the active and passive conversion can be realized, and the flexibility is high; the flexible rope drive is safe andreliable; and the flexible straps are comfortable to wear through inner lining design.

An articulated, adjustable, and lockable alignment arm, and associated extensions and accessories, which are user manipulable to model the size and shape of the fractured limb of a patient in the field. The alignment arm includes a first elongated arm segment, a second elongated arm segment, and connector means for interconnecting the first segment to the second segment through respective pivotal receivers having normal axes of rotation. The alignment arm is adjusted for proper orientation by setting it over the injury, and then locking the arm into a selected orientation which models the patient's limb around the area of the injury. Next, first and second arm extenders and protective end pads are used to expand the effective size of the alignment arm to form a custom splint structure. Lastly, the splint structure is secured to the patient's injured limb through the use of flexible cravats.

The invention discloses a bassinet mechanism. The bassinet mechanism comprises a bassinet frame body, a mechanical transmission part, a control panel, an electrical part and a bassinet basket. Swing movement of the bassinet is sine swing movement achieved through a sine mechanism; the control panel performs multiple mode selection in a mode of a touch screen, a menu is vivid and visual, and the control panel can also be remotely controlled; various sensors and camera devices are arranged. The bassinet mechanism has the advantages that the sine swing movement is stable, smooth and free of sudden change of speed; a proper mode can be selected for pacifying an infant according to the state of the infant through the control panel of the touch screen; a guardian can monitor and remotely control the bassinet while being busy with things of himself or herself.

The invention discloses an intelligent running machine realizing the walking function. The intelligent running machine comprises a running belt, an electric control system, a motor and an intelligent controller, wherein rotating shafts are fixed at two ends of the running belt, the running belt is hinged to the outer rings of the rotating shafts, a driving belt is hinged to the inner rings of the rotating shafts, the motor is mounted below the left sides of the rotating shafts, a voltage regulator is mounted at the right-lower end inside the electric control system, a wireless induction controller is mounted above the voltage regulator, one side of the wireless induction controller is provided with a PLC electric control unit, one end of the electric control system is fixedly provided with a storage battery, the other end of the electric control system is fixedly provided with a radiator, the lower end of each intelligent moving shaft is fixedly provided with a moving universal wheel, a sensing armrest is hinged to one end of the intelligent controller, and an intelligent display screen is fixed at the upper end of the intelligent controller. For the intelligent running machine realizing the walking function, the intelligent sensing technology is adopted, so that the running machine realizes multiple purposes including walking, the use is safe and convenient, and the efficiency is high.

The invention discloses a servo device and method matched with a swing table, and belongs to the technical field of motion simulation test and test equipment. When the power source is hydraulic oil, the driving assembly is a servo oil cylinder, the driving principle of the servo oil cylinder is that the hydraulic oil is conveyed into the servo oil cylinder from an oil source through an oil source electrical control system and a hydraulic device, and the hydraulic oil serves as the power source of the servo oil cylinder. The motion control system is matched with the oil source electrical control system to realize motion control, safety protection and real-time monitoring of the swing table; when the power source is electricity, the driving assembly is a servo electric cylinder, according to the driving principle of the servo electric cylinder, a kinematic pair of the ball screw is used for converting rotary motion of the motor into linear motion of the servo electric cylinder to achieve telescopic motion of the servo electric cylinder, and the control system achieves control over the telescopic motion of the servo electric cylinder. Therefore, the swing table generates single-degree-of-freedom or two-degree-of-freedom compound motion with different frequencies and different amplitudes.

The invention discloses a sport shoe and a sole thereof. A heel of an insole of the sole of the sport shoe is provided with an opening; a buffer is embedded in the opening, and has a shell with a thin-shell structure; the shell is provided with a plurality of upper and lower through holes opposite to each other vertically; the shell and the insole are integrally formed through injection molding; and support posts are formed in the upper and lower through holes. By referring to a reinforced concrete forming principle in the field of buildings, the support posts are equivalent to concrete, the shell is equivalent to a template, when a foot of a person touches the ground, a cavity formed between a support post and an adjacent support post is stressed and deformed to disperse impact force, the shock strength is high, shock waves can be effectively dispersed, the pressure of the bottom of the foot on the shoe, and reacting force of the ground to the sole are effectively dispersed uniformly, and a wearer exercises more safely, comfortably and enduringly.

The invention relates to intelligent arm muscle exercise sports equipment for a senior citizen, and belongs to the technical field of manufacturing of appliances for the senior citizens. A back cushion is placed under the back of the senior citizen lying on the back on a bed, wherein an information storage processor and a lithium ion battery are mounted in the middle inside the back cushion, a right pressure sensor and a right counting display are mounted on the right inside the back cushion, and a left pressure sensor and a left counting display are mounted on the left inside the back cushion; a right elastic rope and a right grip stick are mounted on the right side of the right pressure sensor, and a left elastic rope and a left grip stick are mounted on the left side of the left pressure sensor. The senior citizen grips the right grip stick with the right hand, performs flexion and extension movement through the right arm, grips the left grip stick with the left hand and performs flexion and extension movement through the left arm; accordingly, muscles of both arms can be exercised. Flexion and extension data of the arm muscles are converted into electrical signals by the pressure sensors, and the electrical signals are input into the counting displays and the information storage processor respectively and are stored, calculated and processed in the information storage processor, so that intelligent management and intelligent control of the exercise process are realized.

The invention provides a manipulator based on a spherical screw pair. The manipulator comprises a spherical screw body, a rack mechanism, a rotary shaft, two clamping jaws, two clamping beams and two connection rods, wherein the spherical screw body is arranged in the rack mechanism; the rotary shaft is connected to the bottom of the spherical screw body; the rack mechanism is provided with an arc-shaped slide groove along the both sides of the spherical screw body respectively; two slide blocks are embedded in the corresponding slide grooves by convex keys; each of the slide blocks is slidably engaged with a spherical screw groove in the spherical screw body; each of the slide blocks is pivotedly connected with one end of the corresponding clamping beam through one connection rod; the other end of each of the clamping beams is linked with the corresponding clamping jaw through a spherical hinge; an elbow is arranged on each of the clamping beams; and each of the elbows is pivotedly connected to the rack mechanism. The manipulator provided by the invention is capable of realizing various special movement functions, and ensuring the accuracy and reliability of movements and safety and stability in component mechanics, thus realizing an operation for a target object.

The invention relates to the field of intelligent training instruments, and provides a method for adjusting the speed and slope gradient of a treadmill in real time according to heart rate change, wherein the method comprises the steps: S201, monitoring and acquiring the current heart rate of a user during exercise in real time, and executing S202 to S205 if the current heart rate of the user is not within the target heart rate range of the user; S202, calculating the difference between the current heart rate and the target heart rate range mean value; S203, establishing a polynomial formula according to the test heart rate, the test intensity, the resting heart rate and the resting intensity of the user; S204, according to the difference between the current heart rate and the target heartrate range mean value and the polynomial formula, calculating to obtain the difference value between the current strength of the treadmill and the target strength, and obtaining the target strength according to the current strength of the treadmill and the difference value; and S205, converting the target strength into a target speed and a target slope gradient through a strength-speed/slope gradient conversion formula. According to the method, the speed and/or slope gradient of the treadmill can be dynamically adjusted, and individual, fine and rapid heart rate adjustment requirements are met.