38 results about "Right ankle" patented technology

The invention discloses an indoor and outdoor positioning method, a positioning system and positioning foot rings. The method comprises the following steps: (1) separately putting on the foot rings on a left ankle and a right ankle, wherein radio receiving and transmitting modules, ultrasonic wave receiving and transmitting modules and double magnetic compasses are arranged on the foot rings; (2) performing TDOA distance measurement based on the ultrasonic wave receiving and transmitting modules and the radio receiving and transmitting modules, so as to obtain a real-time distance between two feet within a walking cycle; (3) performing course angle detection based on the double magnetic compasses; (4) acquiring the stride di and the course angle theta i of a track based on the step (2) and the step (3); (5) substituting the stride di and the course angle theta i obtained in the step (4) into a calculating formula for reckoning the pedestrian track, namely a north coordinate shown in the description, an east coordinate shown in the description, so as to obtain the current pedestrian position coordinate. According to the indoor and outdoor positioning method, the positioning system and the positioning foot rings disclosed by the invention, hardware is integrated on the foot rings, and the foot rings are convenient to disassemble, assemble and carry, high in capacity of resisting disturbance, reliability, stability and generality, and free from complicated mounting and connecting, and is directly disassembled and assembled, so that the foot rings are suitable for any people.

A strength conditioning device for strengthening and conditioning abdominal and hamstring muscles is provided. The device includes at least one flex member, a seat, an ankle support attachment member and an ankle support frame. Each flex member has a first end portion, a second end portion and a middle portion between the first and second end portions, each middle portion having a curved region. The seat has an upper surface for receiving the buttocks and / or upper posterior thigh portions of a user and is attached to the second end portions of the flex members. The ankle support attachment member is attached to the first end portions of the flex members. The ankle support frame, which is attached to the ankle support attachment member, has left and right ankle support members oppositely positioned on either side of the flex members for supporting the ankles of the user. The device may further include a forefoot bar, attached to the ankle support frame, and configured to support the user's forefeet.

The invention discloses a simulated dummy for testing the comfort level of an automobile seat, and the simulated dummy is characterized in that the simulated dummy comprises a simulated dummy body, and the simulated dummy body sequentially comprises a simulated skeleton layer, a simulated muscle layer, a simulated fat layer and a simulated skin layer from the inside to the outside; an upper trunkangle measuring instrument is arranged at the trunk corner of the simulated dummy body; a left thigh hip angle measuring instrument and a right thigh hip angle measuring instrument are respectively arranged at the left thigh angle and the right thigh angle of the simulation dummy body; a left thigh knee angle measuring instrument and a right thigh knee angle measuring instrument are respectivelyarranged at the left knee angle and the right knee angle of the simulated dummy body; a left foot angle measuring instrument and a right foot angle measuring instrument are arranged at the left ankleangle and the right ankle angle of the simulated dummy body, a waist area of the simulated dummy body is provided with a waist protrusion measuring scale, and pressure sensors are arranged on the back, the left thigh rear side and the right thigh rear side of the simulated dummy body. According to the invention, various sitting postures and forms of a human body can be truly simulated, and optimalsimulation of testing of the comfort level of the automobile seat by a real person can be realized.

The invention relates to the technical field of hockey skates, and discloses a hockey skate shell, hockey skates and roller skates. The hockey skate shell comprises a skate body shell, a sole portionand a skate head shell, wherein the skate body shell comprises a heel portion, a left ankle portion and a right ankle portion; the left ankle portion is connected with the front end surface of the left side of the heel portion; the right ankle is connected with the front end surface of the right side of the heel portion; the skate head shell is detachably connected with the skate body shell; the skate head shell and the skate body shell are positioned on the upper surface of the sole portion; the skate head shell and the skate body shell jointly form an integral skate shell; and the outline shape of a connecting portion of the integral skate shell is matched with the outline shape of the sole portion. The hockey skate shell has the advantages of impact prevention, frost crack prevention, capability of adapting to a cold environment, separate design of the skate head shell and the skate body shell and capability of improving anti-impact ability.

The invention discloses an electric power personnel safety state intelligent identification method based on stride measurement and a medium. The method comprises the steps of detecting and tracking abounding box of each person in a video picture based on a multi-target tracking algorithm and allocating a personnel ID number, inputting the image in the bounding box of the person into a key point detection algorithm to obtain left and right ankle key points of the human body and correlating the left and right ankle key points with the bounding box of the person, determining a bounding box of aperson whose stride needs to be measured, obtaining corresponding left and right ankle key point data, selecting a measurement ankle, determining a current motion state of the measurement ankle by measuring ankle key points, calculating a moving distance between two adjacent static states of the measurement ankle, recording the moving distance as the stride of the person, and generating person state information, and generating person safety state information based on the person state information and a preset safety rule. No extra manual intervention is needed, only the camera is needed to acquire the test image in real time without wearing other hardware equipment, the operation speed is high, the deployment is convenient, and the method is suitable for different scenes.

The invention discloses an inertial navigation indoor positioning method based on BP neural network, which includes a motion data collection and preprocessing stage, an off-line training stage and a real-time positioning stage. Data collection is through the left and right ankle wearable devices to collect the movement data of the personnel's two ankles, the personnel's height and step length; the data preprocessing is to use multi-sensor information fusion processing to obtain 7 neural network input data - left and right legs Attitude angle changes θ1 and θ2, ankle acceleration average, variance variance, left and right foot step duration time1 and time2, and height stature; the offline training phase includes: establishing a neural network step size estimation model; 7 input data and step length data input into the neural network for training; the real-time positioning stage includes: step recognition inside the right ankle wearable device, real-time prediction of step length, and real-time positioning through dead reckoning using step length and direction angle. The invention improves the accuracy and real-time performance of indoor positioning, and enhances the reliability.

A robotic system is provided that enables easy manipulation and various operations. A walking operation allocated to a manipulated switch operation section is performed. Meanwhile, the right ankle roll axis control motor, the left ankle roll axis control motor, right hip joint roll axis control motor, and the left hip joint roll axis control motor are driven according to the operation amount of a manipulated analog operation section. Thus, the barycentric position of the robot is shifted to change the traveling direction of walking.

A robotic system is provided that enables easy manipulation and various operations. A walking operation allocated to a manipulated switch operation section is performed. Meanwhile, the right ankle roll axis control motor, the left ankle roll axis control motor, right hip joint roll axis control motor, and the left hip joint roll axis control motor are driven according to the operation amount of a manipulated analog operation section. Thus, the barycentric position of the robot is shifted to change the traveling direction of walking.

The invention discloses a method and medium for intelligently identifying the safety state of electric power personnel based on stride measurement. The method includes: detecting and tracking each person's enclosing frame in a video screen based on a multi-target tracking algorithm and assigning a person ID number; Input the key point detection algorithm of the image to obtain the key points of the left and right ankles of the human body and associate the bounding box of the person; determine the bounding box of the person whose stride is to be measured and obtain the corresponding key point data of the left and right ankles, choose to measure the ankle, and measure the key points of the ankle Determine and measure the current motion state of the ankle, calculate and measure the moving distance between two adjacent static states of the ankle, record it as the personnel stride, and generate personnel status information; generate personnel safety status based on personnel status information and preset safety rules information. The present invention does not require additional manual intervention, and only needs to collect test pictures in real time through the camera without wearing other hardware devices. It has fast running speed, convenient deployment and is applicable to different scenarios.

The detection method of leaflet distributing behavior of the present invention, comprises the following steps: the human body is divided into 18 key points namely nose, neck, right shoulder, right elbow, right wrist, left shoulder, left elbow, left wrist, right hip, right knee, right ankle , left hip, left knee, left ankle, right eye, left eye, right ear, left ear; 17 limb skeletons are set, and the 17 limb skeletons are the connection lines of the limb meanings existing between the 18 key points; When the camera or camera is facing the target person, establish a behavior indicator of whether the target person is distributing leaflets. The invention also discloses its detection system. The invention helps managers of cities, streets, and city appearances to quickly and effectively discover the behavior of distributing leaflets, saves manpower and improves the efficiency of event discovery and processing, and is of great value to the development of smart cities.

The invention discloses a wearable three-dimensional indoor positioning device and method based on attitude angle measurement. The device includes an inertial sensor, an air pressure sensor, an embedded processor, a communication module, a power supply module and a three-dimensional indoor building model display module. The inertial sensor measures the attitude angle and acceleration signals at the left and right ankles, and the air pressure sensor collects the air pressure signal at the position of the person. In the embedded processor, information fusion processing is performed on the data obtained by the inertial sensor and the air pressure sensor, and the processed data is sent to the terminal of the ad hoc network through the Bluetooth module of the communication module, and the data received by the terminal is transmitted by the ad hoc network The packet is sent to the base station of the ad hoc network, and then the data packet is transmitted to the display module through the serial port, and the display module displays information such as the real-time position of the personnel. The power module supplies power to the embedded processor. The invention improves the three-dimensional indoor positioning accuracy and real-time performance.

Physical rehabilitation exercise device and its installation and use method. The composition of this product includes: top suspension plate, bottom support plate, top suspension plate connected with top horizontal hollow tube, top horizontal hollow tube connected with left circle and right circle, left circle connected with left afterburner, The left afterburner is connected to the left afterburner arc plate, the right circle is connected to the right afterburner piece, and the right afterburner is connected to the right afterburner arc plate; the top of the top horizontal hollow tube has a top round hole, and the top round hole is fixedly connected Vertical round pipe, the steel wire rope is installed in the vertical round pipe, the steel wire rope is wound around the turntable, the turntable has an arc groove, the wire rope is wound in the arc groove, the wire rope is connected to the front hanging bar, and the front hanging bar is connected to the front left hanging rope and the front right hanging Rope, the front left sling is connected to the left wrist ring, the front right sling is connected to the right wrist ring, the front hanging bar is connected to the front left body sling and the front right body sling, the steel wire rope is connected to the rear hanging bar, and the rear hanging bar is connected to the rear left hanging rope and the rear right sling, the rear left sling is connected to the left ankle ring, and the rear right sling is connected to the right ankle ring. The invention is used for physical rehabilitation exercise.

The invention provides a children swimming teaching system which comprises a buoyancy collar sleeving the neck and buoyancy ankle rings sleeving the left ankle and the right ankle. The buoyancy ankle rings is formed by air bags, and each air bag is connected to a holdable rubble ball which is in full shape under the natural state through a soft tube; when the rubber balls are in full shape, the buoyancy ankle rings are in soft flat state, and the maximum buoyancy at the buoyancy rings is not enough to float legs of children; when the rubber balls are pinched flat, air in the rubber balls is pressed into the buoyancy ankle rings, the buoyancy ankle rings are in full shape, and the maximum buoyancy at the buoyancy ankle rings enable the legs of the children to float up. By the arrangement, the children can be assisted in alternative water-repelling movement training with both legs lightheartedly, water-repelling resistance can be greatly reduced, and meanwhile, difficulty in training of adults and the children can be reduced at the same time.

The invention discloses an ankle pump exercise trainer for patients with lower limb myasthenia. The trainer comprises a shoe body, a sole, an ankle adjusting mechanism and a foot plate adjusting mechanism, the shoe body is detachably connected with the sole, the ankle adjusting mechanism comprises a rear ankle air bag adjusting device, a left ankle air bag adjusting device and a right ankle air bag adjusting device which are arranged in the shoe body, the rear ankle air bag adjusting device is installed on the rear side of the sole, the left ankle air bag adjusting device and the right ankle air bag adjusting device are both located on the front side of the rear ankle air bag adjusting device, the left ankle air bag adjusting device and the right ankle air bag adjusting device are symmetrically arranged, and the foot plate adjusting mechanism comprises an upper foot plate air bag adjusting device, a lower foot plate air bag adjusting device, a left foot plate air bag adjusting device and a right foot plate air bag adjusting device which are located on the front side of the ankle adjusting mechanism. The ankle pump exercise trainer for the patients with lower limb myasthenia can train the footsteps of the patients, and has the advantages of being convenient to wear and use.

The invention discloses agonist utilizing compression tights and a production method for the same. The agonist utilizing compression tights comprise a top and pants, wherein the top and the pants are made from nylon or extensible spandex materials; the top is formed by sewing front patchwork, left shoulder patch work, right shoulder patchwork, left elbow patchwork, right elbow patchwork, left arm patchwork, right arm patchwork, left waist patchwork, right waist patchwork, back patchwork, a left armpit fabric, a right armpit fabric and a rear waist fabric; the patchwork of the top has a warp shrinkage ranged from 69.31 to 94.95 percent and a weft shrinkage ranged from 79.47 to 91.59 percent; the pants are formed by sewing front abdominal patchwork, left thigh front patchwork, right thigh front patchwork, left thigh side patchwork, right thigh side patchwork, left knee patchwork, right knee patchwork, left leg patchwork, right leg patchwork, left hip patchwork, right hip patchwork, left thigh rear patchwork, right thigh rear patchwork, left ankle patchwork, right ankle patchwork, an air-permeable rear waist fabric and an air-permeable crotch fabric; the patchwork of the pants has a warp shrinkage ranged from 72.32 to 91.87 percent and a weft shrinkage ranged from 73.38 to 89.12 percent. According to the agonist utilizing compression tights and the production method for the same, agonists are utilized, the actions of the agonists are supported, and the fatigue of the agonists is retarded.