37results about How to "Ensure sports safety" patented technology

The invention discloses a knee joint prosthesis, a knee joint prosthesis pad and a shinbone base element. The knee joint shinbone base element is combined with a shinbone, and comprises a base, wherein a boss is arranged on the base; and a guide channel through which an anterior cruciate ligament passes is formed on the boss and the base. The knee joint prosthesis pad is provided with a pad opening or a pad through hole for accommodating the boss of the shinbone base element. The knee joint prosthesis comprises the shinbone base element, the knee joint prosthesis pad and a shinbone element combined with the shinbone. The attaching position of the anterior cruciate ligament relative to the shinbone base element can be kept consistent with the attaching position of a human body anterior cruciate ligament in anatomy on the shinbone, so that the knee joint prosthesis can be used for rebuilding an anterior cruciate ligament, and a patient recovers body feel and moves well after replacement of the knee joint prosthesis.

The invention relates to a body core temperature monitoring method, a motion early warning method applied to a high-temperature and high-humidity environment and a motion early warning system applied to the high-temperature and high-humidity environment. According to the core temperature monitoring method, a heart rate signal of a subject is acquired by virtue of a heart rate sensor, and the core temperature of the subject is calculated depending on heart rate data through a formula: Tc=0.02HR+34.66; according to the motion early warning method, the core temperature of an exerciser is monitored on the basis of the body core temperature monitoring method of the invention in the high-temperature and high-humidity environment, and the motion early warning method alarms when the core temperature of the exerciser exceeds a preset threshold; the early warning system is capable of achieving early warning by virtue of the motion early warning method of the invention; the early warning system comprises a wearable chest strap, a heart rate sensor and an intelligent mobile terminal, and the heart rate sensor is arranged on the chest strap and the intelligent mobile terminal is communicated with and connected to the heart rate sensor. The body core temperature monitoring method, the motion early warning method and the motion early warning system disclosed by the invention can achieve real-time monitoring on body core temperature under a motion state conveniently and effectively with low cost, and can alarm when the core temperature exceeds the certain threshold.

The invention provides a counting skipping rope which comprises two handles and a main rope for connecting the two handles, wherein a main guide wire is arranged in the main rope; each of two ends of the main guide wire extends into each handle respectively; a conductive elastic wire is led out of the end part, which is departed from the main guide wire of each of the two handle; the end part of each conductive elastic wire is connected with a metal magnetic block respectively; when the two metal magnetic blocks attract mutually, the main guide wire and each of the conductive elastic wires form a conductive loop; an output resistor is connected in series with the interior of each handle of the main guide wire; output voltage of the output resistors supply power to the input end of a triode switch circuit after being rectified through a rectification diode; the output end of the triode switch circuit is electrically connected with a counter; the counter is electrically connected with output equipment. The counting skipping rope is high in counting precision; furthermore, a user can learn about the current rope skipping speed condition in real time in the rope skipping process.

The invention discloses an intelligent sport cap with a health monitoring function. The intelligent sport cap with the health monitoring function comprises a rotating shaft, a headset, a temperature and humidity sensor, a brim, a distance detector, solar panels, a gas detection probe, a cap body, a miniature camera, a switch, a buckle, a touch screen, a clamping belt, a photoelectric sensor, a biosensor, a GPS chip, a memory chip, a wireless transceiver device and a microprocessor. The intelligent sport cap with the health monitoring function is provided with the temperature and humidity sensor and the gas detection probe, so that the temperature, humidity and gas content of a sports environment can be directly measured, and voice broadcasting is carried out through the headset to remind a user whether the current sports environment is suitable for doing sports or not; the distance of a front-end obstacle can be detected by the arranged ultrasonic distance detector to timely carry out effective reminding; whole-course camera recording can be performed by the arranged miniature camera to solve the tedious phenomena caused by needing of carrying mobile phones and other entertainment equipment during running, the arranged cap body provided with the photoelectric sensor can further shelter a sportsman from wind and rain while tracking sports data of the sportsman.

The invention provides a method and a device for detecting endogenous fatigue of muscles, and a storage medium. The method includes acquiring the maximum electric signal transmission speeds, current electric signal transmission speeds, the maximum electric activity ranges, current electric activity ranges, the maximum electric distribution frequencies and current electric distribution frequenciesof the target muscles; computing the endogenous fatigue of the target muscles according to the maximum electric signal transmission speeds, the current electric signal transmission speeds, the maximumelectric activity ranges, the current electric activity ranges, the maximum electric distribution frequencies, the current electric distribution frequencies, first fatigue parameters, second fatigueparameters and third fatigue parameters, generating corresponding movement adjustment strategies according to the endogenous fatigue and displaying the endogenous fatigue and the movement adjustment strategies. According to the scheme, the method, the device and the storage medium have the advantages that the endogenous fatigue of the muscles can be quantified, the fatigue degrees of the target muscles can be intuitively presented to users, and an accurate basis can be provided to adjusting current movement states and current movement adjustment schemes according to the fatigue degrees.

The invention provides a cardiopulmonary test method and a system. The method comprises the following steps that a user's physical data during the first level cardiopulmonary endurance test is monitored, the physical data includes real-time heart rate during the process of the test; according to the measured real-time heart rate, it is determined that whether the termination condition of exercisetest is met, if yes, then the test is ended, the obtained true MET value representing the physical quality of the user is taken as the metabolic equivalent of the user's cardiopulmonary endurance test; if no, then the first level exercise cardiopulmonary endurance test is completed, the second level exercise cardiopulmonary endurance test is entered; the above-mentioned process is repeated; if the user passes all level tests, the user's true MET value is determined by the following means; the estimated maximum user heart rate is taken as an independent variable, and substituted into the linear equation y=ax+b and the value of y is obtained, the value of y is taken as the user's true MET value. The cardiopulmonary test method and the system provide a good platform and scientific guidance for improving people's physical fitness, and help to popularize the concept of fitness among the public.

The invention provides an automatic driving automobile control system. The system performs optimization control on an automatic driving automobile sensor system based on edge calculation, a block chain technology and a sensor technology. The system comprises a sensor module, an information processing module and a motion monitoring module. The invention aims to solve the problem that data among multiple sensors of an automatic driving automobile is relatively independent and cannot be well fused in the field, the uniformity of data processing is improved, and the motion trail of the automatic driving automobile is monitored in real time.

The invention relates to the clay court construction filed and particularly relates to a clay court and a construction method thereof. The clay court is characterized by comprising a clay fragment layer and a clay fine sand surface layer which are paved from bottom to top on a court foundation, wherein the clay fragment layer is formed by bonding clay fragments and elastic particles through adhesives; the court foundation is any of a hard court foundation, a clay foundation, an elastic cushion or a semi-elastic cushion; the clay fragments and elastic particles are prepared according to a weight ratio of (10:4) to (10:0), and the adhesives and a clay fragment and elastic particle mixture are prepared according to a weight ratio of 1:(7-15). The clay court and the construction method thereof have the advantages that the structure is simple, and the permeable performance and the damping property are good; and the clay court is simple to construct and maintain, low in maintenance cost, good in anti-freezing and anti-cracking performances and long in service.

The invention discloses a method for detecting looseness of a rail splice fastener and belongs to the field of detection on railway infrastructures. The method comprises the following main steps: acquiring three-dimensional shape data of a side surface of a track by adopting a three-dimensional imaging system, and converting the three-dimensional shape data into a two-dimensional depth image by taking a vertical surface vertical to a rail plane and parallel to a rail direction as a horizontal datum plane of the depth image; according to prior size of the side surface of a rail, adopting a threshold segmentation method and detecting a rail splice region; in the rail splice region, adopting the threshold segmentation method and detecting a fastener region according to prior thickness of therail splice; in the fastener region, calculating height and angle of a moving part of the fastener; and taking the height and angle when the fastener is unloosened as references, performing height androtation angle comparison, and judging whether the fastener is loosened or not. The detection method provided by the invention is easy to use, does not change an existing railway fastener structure and can effectively guarantee railway operation security.

The invention belongs to the technical field of fitness equipment design and manufacturing, and particularly relates to flexible mechanical arm principle-based fitness equipment which comprises a mechanical arm and a supporting part, the mechanical arm is connected with the supporting part, and a mechanical interaction structure is arranged at the tail end of the mechanical arm; and the flexible mechanical arm principle-based fitness equipment further comprises a force feedback joint, a motion control module, a force field control module, a man-machine interaction module and a human body motion posture analysis module. According to the invention, force control is carried out without using any counter weight, and fitness training which can only be completed in a professional environment in the past can be carried out in a limited environment. According to the invention, various huge fitness equipment can be simulated, and large sports equipment in numerous gymnasiums is miniaturized and integrated, so that strength training in a limited space becomes possible, a large amount of equipment occupied by the gymnasiums can be saved, and the operation efficiency of the gymnasiums is greatly improved.

The invention discloses a multifunctional smart cap special for outdoor sports. The multifunctional smart cap comprises a rotating shaft, a headset, a temperature and humidity sensor, a brim, a distance detector, a solar cell panel, a gas detection probe, a cap body, a miniature camera, a switch, a buckle, a touch screen, a clamping strap, a photoelectric sensor, a GPS chip, a storage chip, and wireless transceiving device and a microprocessor. The temperature and humidity sensor and the gas detection probe are arranged, the content of temperature, humidity and gas of the sport environment can be directly measured, and voice broadcast is conducted on whether the current sport environment is suitable for sports or not through the headset; the ultrasonic distance detector can detect the distance of an obstacle at the front end and conduct effective reminding in time; the miniature camera can conduct entire video recording, and the problem that tedious phenomenon is brought about due to the fact that entertainment equipment such as a cell phone needs to be carried in the running process is solved; the cap body with the photoelectric sensor tracks motion data of athletes and resists wind and rain for the athletes simultaneously.

The invention provides a cardiopulmonary exercise testing method and system based on real-time monitoring of the heart rate and blood pressure. The method comprises the following steps that body datawhen a user conducts first-level cardiopulmonary exercise endurance testing is monitored, wherein the body data comprises the real-time heart rate in the testing process; according to the measured real-time heart rate and blood pressure data, whether or not a motion testing stopping condition is met is judged, and if yes, testing is stopped, an acquired true MET value which represents the physicalquality of the user is used as the metabolic equivalent of cardiopulmonary exercise endurance testing of the user; if not, first-level cardiopulmonary exercise endurance testing is completed, and second-level cardiopulmonary exercise endurance testing is started; the steps above are repeated; if the user passes testing of all levels, the true MET value of the user is determined. The cardiopulmonary exercise testing method and system provide a good platform and scientific guidance for improvement of the physical quality of the whole people, and help to popularize a fitness concept among the public.

The invention relates to a wearable device which comprises a body. The body comprises an upper shell, a lower shell and an electromyographic signal detection module, a flexible display screen and at least one control key are arranged on the outer wall of the upper shell, a muscle oxygen signal detection module, a circuit board and an energy storage module are arranged in a containing area of the upper shell, the energy storage module is electrically connected with the circuit board, the circuit board comprises a signal modulation module and a main control chip, the muscle oxygen signal detection module and the electromyographic signal detection module are electrically connected with an input end of the signal modulation module, the output end of the signal modulation module is electricallyconnected with an input end of the main control chip, and the output end of the main control chip is electrically connected with the flexible display screen. According to the wearable device, muscleoxygen number value and bioelectric activity conditions can be acquired and displayed by the flexible display screen in real time. When the wearable device is used for exercise and fitness or medicalrehabilitation, exercise efficiency is improved, and excessive movement is prevented, so that movement safety of a user is guaranteed.

The invention relates to an autonomous obstacle avoidance method for a two-wheeled self-balancing vehicle under a multi-obstacle environment. The autonomous obstacle avoidance method comprises the steps that an artificial potential function is improved by considering the safe distance, an obstacle avoidance controller of the two-wheeled self-balancing vehicle is constructed based on improvement ofthe artificial potential function, and key parameters of the obstacle avoidance controller are adjusted through a fuzzy logic method. Through the provided novel artificial potential function, the local minimum problem generated when obstacles are located nearby target points can be solved, motion safety of a moving robot can further be ensured more effectively, and the novel artificial potentialfunction can be used for various types of autonomous moving platform obstacle avoidance control. The autonomous obstacle avoidance method is an effective obstacle avoidance scheme aiming at the under-actuated and incomplete two-wheeled self-balancing vehicle under the multi-obstacle environment, and good balance of control stability and motion efficiency can be achieved.

The invention discloses a sports protection method and device, a ground mat, a system and a storage medium. The method comprises the steps of: obtaining approaching object state data collected by sensors in all directions on a ground mat, the approaching object state data comprising the approaching distance from an approaching object to the ground mat; and when any approaching distance is within apreset distance range, pushing a reminding message to sports equipment in communication connection with the ground mat, the reminding message being used for reminding a user that the approaching object enters the sports area. Therefore, according to the embodiment of the invention, the approaching object entering the sports area can be discovered in time, and the user is reminded to pay attention, so that the motion safety is guaranteed.

The invention discloses an automobile automatic driving safety test system and an operation method thereof. The automobile automatic driving safety test system comprises a virtual electronic fence, a traffic unit flow, a test vehicle, a tester and a radio frequency module, the virtual electronic fence defines an activity area for the traffic unit flow, the test vehicles and the test personnel; the traffic unit flow is automatically driven in the virtual electronic fence, a positioning module is arranged on the traffic unit flow, and when the positioning module detects that the traffic unit flow is driven away from the virtual electronic fence, the traffic unit flow is actively braked; the test vehicle runs in the virtual electronic fence and is used for testing the safety performance of automatic driving of the traffic unit flow; a tester moves in the virtual electronic fence and commands the test work; the radio frequency module is used for sensing the distance between two traffic unit flows, the distance between the traffic unit flow and a test vehicle, the distance between the traffic unit flow and a test person, and the distance between the traffic unit flow and a ground obstacle. The invention aims to solve the problem that the safety performance of the existing test system has defects.

The invention particularly relates to an auxiliary mat for physical exercise. The auxiliary mat comprises a base layer, a first elastic layer is arranged on the bottom layer, a second elastic layer isarranged on the first elastic layer, a surface layer is arranged on the second elastic layer, and an elastic net is arranged between the first elastic layer and the second elastic layer. Accordingly,the good buffer elasticity effect is achieved, and then the exercise safety of students is guaranteed; meanwhile, the overall structure is simple, the cost is low, and the very high practicability isachieved.

The invention relates to an autonomous obstacle avoidance method for a two-wheeled self-balancing vehicle used in a multi-obstacle environment, including the steps of improving the artificial potential field function by considering the safety distance, and establishing a two-wheeled self-balancing vehicle obstacle avoidance controller based on the improved artificial potential field function The steps of adjusting the key parameters of the obstacle avoidance controller using the fuzzy logic method. The proposed new artificial potential field function can not only overcome the local minimum problem when obstacles are near the target point, but also more effectively ensure the movement safety of mobile robots, and can be used for obstacle avoidance control of various types of autonomous mobile platforms . This application is an effective obstacle avoidance scheme for an underactuated, incomplete two-wheeled self-balancing vehicle in a multi-obstacle environment, which can achieve a good balance between control stability and motion efficiency.

The invention relates to a muscle fatigue detection device. Its body includes an upper case, a lower case and an electromyographic signal detection module. The outer wall of the upper case is provided with a flexible display screen and at least one control button. Muscle oxygen signal detection module, circuit board and energy storage module. The muscle oxygen signal detection module is used to acquire the muscle oxygen signal and myoelectric signal of the target muscle; the main control chip is used to generate muscle oxygen data according to the muscle oxygen signal, and generate exogenous fatigue degree according to the muscle oxygen data, and Generate myoelectric data according to the myoelectric signal, and generate endogenous fatigue degree according to the myoelectric data, generate comprehensive fatigue degree according to exogenous fatigue degree and endogenous fatigue degree, and the flexible display screen is used to display endogenous fatigue degree Fatigue, exogenous fatigue and comprehensive fatigue. The invention can acquire muscle oxygen value and bioelectric activity, and display them in real time through a flexible display screen, so as to improve exercise efficiency and prevent excessive exercise.

The invention relates to the technical field of exercise quality evaluation, in particular to a stride frequency test method. The test method comprises a stride frequency test device and a construction test condition. The stride frequency test device comprises a test component and an acquisition component, wherein the acquisition component is partially arranged on the test component; and the acquisition component is partially fixed on a user. According to the construction test condition, by using the stride frequency test device, user data are acquired and processed, and a result is output. The method comprises the following steps of S1, inputting personal information of a user, limiting a maximum numerical value, and adjusting a ground surface condition and a slope of the test component; S2, performing an exercise test on the user and recording data; S3, presetting a time interval, dividing the whole time period into three parts, setting the three parts as exercise intensities of the three stages, calculating exercise heart rates of the three stages, and comparing the exercise heart rates with the stride frequency test result; S4, repeating the steps S2 and S3, adjusting the ground surface condition and the slope, and recording data at the same time; and S5, processing the data and outputting the result.

The invention discloses a path planning method for a mobile robot based on image processing, comprising the following steps: S1. Preprocessing a map image: calculating the safety of the mobile robot and surrounding obstacles during the movement process based on the external geometric features of the mobile robot The distance s is set on the map image with the expansion point as the center and the safety distance s as the expansion radius to form a circular range to set a safety range, and mark the safety range; perform skeletal features on the marked map image Extraction to obtain a reference path map; S2. Obtaining an initial path; S3. Optimizing the initial path. The invention improves the flexibility of the algorithm, has high robustness and operation efficiency, and the obtained optimal path can ensure the motion safety of the mobile robot.

The invention provides a control method, which is used for controlling a movable platform and comprises the following steps: acquiring information indicating a motion range, acquiring a real-time braking distance of the movable platform, if the real-time braking distance of the movable platform in the movement range is larger than the distance between the real-time position of the movable platform in the movement direction and the boundary of the movement range, taking over the movable platform. The invention further provides a control device, a movable platform, a remote control device, a control system and a computer storage medium.

The invention provides a method and device for detecting endogenous muscle fatigue, and a storage medium. The method comprises the following steps: acquiring the maximum electric activity amplitude, the current electric activity amplitude, the maximum electric discharge frequency and the current electric discharge frequency of the target muscle; the endogenous fatigue degree of target muscle was calculated according to the maximum electric activity amplitude, current electric activity amplitude, maximum electric discharge frequency, current electric discharge frequency, fatigue degree attenuation parameter and fatigue degree enhancement parameter; according to the endogenous fatigue degree, generating the corresponding movement adjustment strategy; and displaying endogenous fatigue and exercise adjustment strategy. By adopting the scheme, the endogenous fatigue degree of the muscle can be quantified, and the fatigue degree of the target muscle can be intuitively presented to the user,so as to provide an accurate basis for adjusting the current movement state and the current movement adjustment scheme according to the fatigue degree. In addition, it can also improve the exercise efficiency of the target muscle, prevent excessive exercise and protect the movement safety of the user.