142results about How to "Improve exercise efficiency" patented technology

The invention relates to the technical field of mechanical arm control, in particular to a mechanical arm and a control method thereof. The method comprises the following steps that real-time load information of all joints of the mechanical arm in the operation process is obtained, the acceleration and rotational inertia of the mechanical arm are monitored in real time, and real-time inertia force data are generated; the torque compensation amount needed by the mechanical arm is calculated according to the real-time inertia force data, and torque compensation control data are generated; performing dynamic analysis on the torque compensation control data, and performing real-time adjustment on the output torque of the servo motor based on the current load and inertia change condition to generate inertia compensation data; and the motion path and the motion speed of the mechanical arm are dynamically optimized according to the inertia compensation data, and path optimization data are obtained. Through real-time monitoring, dynamic adjustment and intelligent optimization, the operation precision, the movement efficiency, the stability and the self-adaptive capacity of the mechanical arm in the complex working environment are remarkably improved.

The invention relates to a carbon plate for sports shoes. From a sole to the top, the carbon plate sequentially comprises a first fiber layer, a second fiber layer and a third fiber layer, the second layer is a fiber layer made of 0-degree unidirectional polyimide fiber cloth; the third layer is an arch reinforcing sheet made of a poly-p-phenylene terephthamide material; the carbon fiber unidirectional belts adopted by at least two carbon fiber layers are symmetrically arranged in the forward direction and the reverse direction, and the other carbon fiber layer is made of 90-degree carbon fiber unidirectional belt materials. The carbon fiber plate has the advantages that the reinforcing piece is arranged at the foot arch, the structural strength of the carbon fiber plate at the weak position of the foot arch can be improved, in addition, the protruding reinforcing ribs can further improve the rigidity of the foot arch, and therefore the structural strength of the whole carbon plate is improved, and the problem that the service life is damaged due to excessive bending of the carbon plate is solved.

The invention belongs to the technical field of robots, and particularly relates to a planar multi-degree-of-freedom micro piezoelectric robot with an annular structure and an excitation method, the robot comprises an actuating component and a guide mechanism, and the actuating component comprises an annular base body, a piezoelectric ceramic piece assembly and a driving foot assembly; the guide mechanism comprises a support, a locking bolt assembly, a nut assembly and a guide bearing assembly. According to the excitation method, after a special electric signal is applied to the actuating part, three different axial bending modes of the actuating part are excited, and the combination of the modes is utilized to enable the driving foot to generate an oblique straight line or an elliptical track. Through the friction effect between the piezoelectric robot and the ground, the piezoelectric robot can achieve linear motion and rotary motion in the orthogonal direction in the plane. The robot has the advantages of being small in size, simple and convenient in structure, simple in driving mechanism and high in movement efficiency, particularly has the high flexibility characteristic of being capable of achieving plane three-degree-of-freedom movement, and has wide application potential in the fields of narrow environment detection, safety rescue and the like.

The invention provides a quadruped robot control method and system based on reinforcement learning and a composite model, relates to the technical field of robot automatic control, and introduces multiple control modes (a wheel type mode, a foot type mode and a wheel-foot composite mode) to realize efficient passing of multiple terrains. A reinforcement learning method is used for replacing traditional model prediction control, the complexity of a control system is greatly simplified, the real-time response capability to a dynamic environment is enhanced, a composite model optimization controller further optimizes speed distribution through quadratic programming so as to ensure the optimal speed and stability performance, a user can manually switch a control mode, and the control efficiency is improved. The requirements of different task scenes, such as patrol, rescue and transportation tasks of complex terrains, are met; the invention shows excellent passing efficiency and energy consumption performance in experiments, especially in the aspect of smoothness of terrain transition and multi-mode switching.

The invention discloses a control method and device for linkage of a wearable device and a limit scooter and a storage medium, and belongs to the technical field of motion data processing.The method comprises the steps that a motion trigger signal is obtained, and the wearable device is connected with the limit scooter through a near-field communication module to obtain and record motion parameters of the limit scooter; key actions are recognized, the motion parameters are analyzed, the key actions and key action moments of the limit scooter are recognized, and key motion indexes of the limit scooter are obtained; comparing a motion target with a historical record, obtaining the motion target, comparing a proportional relation between the motion parameter or the key motion index and the motion target, and / or comparing a size relation between the motion parameter or the key motion index and the best score of the historical record; according to the control method combining the wearable device and the extreme scooter, the exercise data can be collected, analyzed, fed back and visualized, and the healthy development of extreme exercise is promoted.

The invention relates to the technical field of intelligent sports data analysis, in particular to an intelligent sports data analysis method and system based on the Internet of Things and a medium. The method comprises the following steps: acquiring real-time state data of physical exercise of an athlete through an intelligent bracelet worn by the athlete; based on an electronic video recording device, motion posture data mapping is carried out according to the real-time state data of the athletes in physical exercise, and motion posture mapping data is obtained; performing instantaneous explosive power evaluation on the motion attitude mapping data, performing abnormal load limit coupling processing, and performing motion risk level evaluation to obtain motion risk level data; making an intelligent motion feedback strategy based on the motion risk level data to obtain the intelligent motion feedback strategy; and sending the intelligent motion feedback strategy to the intelligent bracelet to execute sports data analysis. The intelligent sports data analysis technology is optimized, so that the intelligent sports data analysis technology is more perfect.

The invention discloses a path planning method, device and equipment for a mechanical arm actuator, a medium and a product. The method comprises the steps that a motion starting point and a motion end point of a mechanical arm actuator are obtained, and a grid map of a mechanical arm motion space is generated; taking the motion starting point as a current node, determining adjacent nodes of the current node in the grid map, and determining joint angle data matched with each adjacent node; according to the joint angle data of the mechanical arm at the current node and the joint angle data matched with the adjacent nodes, the next node is determined in the adjacent nodes; and updating the motion path, updating the next node as the current node, returning to the execution of determining the adjacent node of the current node in the grid map until the next node is a motion end point, and outputting a path planning result of the mechanical arm actuator. According to the technical scheme, the problem that the movement efficiency of the mechanical arm actuator is low is solved, the rotation energy consumption of the mechanical arm joint can be effectively reduced, and the movement efficiency of the mechanical arm actuator is improved.

The invention discloses a lower limb exoskeleton control weight distribution prediction method based on artificial intelligence. Comprising the following steps that a, biomechanical data, including but not limited to joint angles, muscle activities and ground counter-acting force, of the lower limbs of a wearer are collected through a plurality of sensors; b, a deep learning model is utilized, and the model is trained through a large amount of lower limb movement data in advance to recognize weight distribution characteristics in different movement modes; c, according to the collected biomechanical data, the model predicts the weight distribution borne by each part of the lower limb in real time; and d, according to a prediction result, intelligently adjusting the supporting force of each joint of the exoskeleton so as to optimize the gait of the wearer and reduce energy consumption. Energy consumption and exercise efficiency are optimized, specifically, according to the predicted weight distribution, the supporting strategy of the exoskeleton is intelligently optimized, the energy consumption of the wearer in the exercise process is reduced, and the exercise efficiency is improved. And by reducing unnecessary energy waste, the service life of the battery is prolonged, and the practicability of the exoskeleton is enhanced.

The invention discloses a mooring-free soft body rolling mechanism based on air tendon coupling driving. Comprising a polyhedral shell, and each face of the polyhedral shell is provided with a soft leg mechanism and a servo motor mechanism for driving the soft leg mechanism to do telescopic motion; each soft leg mechanism comprises a corrugated pipe, an upper sealing element and a lower sealing element; an upper opening part and a lower opening part of the corrugated pipe are respectively sealed by an upper sealing piece and a lower sealing piece, so that an air sealing cavity is formed in the corrugated pipe; the gas sealing cavity is filled with gas, so that the corrugated pipe is in an extension state without external force; the tendons are evenly distributed around the corrugated pipe, one end of each tendon is fixed to the lower sealing piece, the other end of each tendon penetrates through a plurality of branching holes or trunkings correspondingly formed in the periphery of the upper sealing piece, then is gathered to a bus outlet to form a strand and is connected to the servo motor mechanism, and the servo motor mechanism pulls the tendons to tighten or loosen the tendons. And the corrugated pipe is stretched or compressed, so that the leg stretching or retracting action is realized.

The utility model provides a shifting and grabbing integrated mechanical claw and a mechanical arm, which are used for solving the problems that the working mode of the mechanical claw is single and a larger transmission structure is needed in the prior art. The mechanical claw comprises a connecting shell, a front pusher dog and a rear pusher dog are hinged to the connecting shell, a driving motor is fixed in the connecting shell, the output end of the driving motor is connected with a driving gear, the driving gear is meshed with a transfer gear, and the transfer gear slides in the axis direction of the driving gear through a reversing device. The transfer gear is meshed with a front driven gear and a reversing gear, a front half gear capable of being meshed with the transfer gear is arranged on the front pusher dog, a rear half gear capable of being meshed with the transfer gear is arranged on the rear pusher dog, and the front half gear and the rear half gear are arranged in a staggered mode. According to the mechanical claw, the modes of hinging and gear transmission are adopted, so that the overall structure is compact, the action of the mechanical claw is more stable and reliable through gear transmission, the failure rate of the mechanical claw can be reduced, and the service life of the mechanical claw is prolonged.

The invention relates to an environment self-adaptive deformation robot end device and a preparation method and application thereof, and belongs to the field of bionic robots. According to the device, the load of the robot is reduced by adopting the lightweight sensor, the movement efficiency of the robot is improved, and the cost is reduced; by arranging the flexible shell, the feet of the robot can be subjected to self-adaptive deformation when the robot is loaded, the stability of the robot is improved, it is ensured that the robot can stably move under various terrains and postures, accurate sensing data are provided, and the adaptability and operation performance of the robot under different scenes are greatly improved through the flexibility.

The invention provides an illumination simulation system and a regulation and control method thereof. The illumination simulation system comprises a simulation bin; the model piece is located in the center of the simulation bin and is provided with a plurality of sensing devices; the guide rail is arranged at the top of the simulation bin and surrounds the model piece; the lighting device is arranged on the side, close to the model part, of the guide rail and used for outputting light to the model part; and one end of the moving device is slidably connected with the guide rail, and the other end is connected with the lighting device for driving the lighting device to move along the guide rail. The technical problems to be solved are that a plurality of lighting devices are generally fixed on a guide rail of a simulation bin to meet lighting requirements of different angles and positions in related technologies, however, when a lighting device needs to be additionally arranged at a certain position in the simulation process, the fixed lighting device needs to be manually moved to a target position, time and labor are wasted, and time and labor are wasted. Not only is labor cost increased, but also experiment efficiency is reduced.

The invention discloses a vision-based unmanned platform motion planning method and system in an unstructured environment, and relates to the technical field of computer vision, and the method comprises the steps: obtaining a target RGB image; inputting the target RGB image into the trained trafficability cost graph model to obtain a trafficability cost graph with the same height and width as the target RGB image; performing action sampling in a set motion space by using an MPPI algorithm according to the trafficability cost graph to obtain a sampling track; and carrying out cost calculation on the sampling track by taking the trafficability of the unstructured environment and the distance to the end point as indexes, and determining the optimal action of passing through the unstructured environment. Based on the motion planning method provided by the invention, more efficient motion planning and control can be realized in an unstructured environment.

The invention provides a quadruped robot obstacle avoidance path planning method and system based on ESDF-Free, and the method comprises the steps: 1, generating a collision-free path without considering an obstacle based on a control point and a B spline curve, judging whether the control point on each path is affected by a collision object, if not, directly entering a step 3, and otherwise, executing a step 2; step 2, adding obstacle information and a distance field, generating a collision-free path by adopting an A * algorithm, and optimizing the collision-free path based on a gradient; and 3, judging whether the collision-free path is feasible or not, if the collision-free path is feasible, taking the path as a final planned path, and if the collision-free path is not feasible, optimizing the collision path obtained in the step 2 based on the time span path. According to the method, collision force estimation is avoided, the complexity of a quadruped robot system is reduced by simplifying data requirements, and calculation and storage burdens are reduced.

The invention belongs to the related technical field of hydraulic robot body structures, and discloses a humanoid robot trunk structure and a hydraulic humanoid robot, the trunk structure forms a closed oil way system, and a flow channel of the closed oil way system is embedded in the trunk structure; the trunk structure comprises a bottom plate, an arm supporting column, an oil inlet valve block, a motor pump, an oil outlet valve block and a hydraulic cylinder, the arm supporting column is arranged on the bottom plate, the oil inlet valve block and the oil outlet valve block are connected with the two opposite ends of the motor pump respectively, and the motor pump is arranged on the bottom plate; the hydraulic cylinder is arranged on the arm supporting column; the bottom plate, the arm supporting column, the oil inlet valve block, the oil outlet valve block and the hydraulic cylinder are all constituent parts of the closed type oil way system. According to the invention, the integration level is improved.

The invention belongs to the field of ankle assisting and training devices, and particularly discloses a bionic external tendon device and method for ankle cooperative assisting and training, and the bionic external tendon device comprises a front sole sheath, a rear heel sheath, a shank sheath, an external tendon rope group, a limiting mechanism and a power mechanism; one ends of the two first outer tendon ropes are connected with the two sides of the bottom of the front sole bandage respectively, sequentially penetrate through guide holes in the rear sides of the heel protective sleeve and the shank protective sleeve and then are connected with the power mechanism; one end of the second external tendon rope is connected to the top of the front sole bandage, and is connected with the power mechanism after penetrating through a guide hole in the front side of the shank sheath. Multi-dimensional cooperative movement of the foot and the ankle joint and hierarchical control over the plantar tension and the ankle joint auxiliary force can be achieved, the assisting and training effect is improved through cooperative movement of the ankle, the two first outer tendon ropes of the plantar are arranged in a crossed mode, when the first outer tendon ropes are pulled, the foot arch is extruded, and the ankle joint auxiliary force is increased. And the arch training is enhanced.

The utility model discloses a pneumatic and manual switching device which comprises a piston rod, a support is fixedly installed outside the piston rod, a rotating handle is fixedly installed inside the support and located on the surface of the piston rod, a protective cover is fixedly installed outside the rotating handle, and a valve rod is movably installed inside the lower end of the piston rod. A nut positioning block is fixedly installed at the bottom of the support and located outside the valve rod, a trapezoidal nut is installed in the nut positioning block in a threaded mode, a shell is fixedly installed outside the nut positioning block, and a gear disc is movably installed at the bottom of the shell. Through the application of the rotary gear shaft, the gear disc, the nut positioning block and the trapezoidal nut, the operation stability of the internal structure of the pneumatic actuator can be effectively guaranteed, the balance of the internal valve rod in the vertical movement process can be guaranteed, the movement efficiency is higher, and in addition, the device is lighter in weight, smaller in size and more time-saving to disassemble and assemble.

The utility model discloses a bilateral driving reciprocating motion type hub which comprises a hub middle shaft rod, a hub wheel cylinder and a driving disc, the hub wheel cylinder is rotatably sleeved on the hub middle shaft rod, and four driven gears and two main transmission gears are installed on the hub middle shaft rod inside the hub wheel cylinder. The two main transmission gears are located on the two sides of the four driven gears, the front ends of the two main transmission gears are meshed with the four driven gears, meanwhile, the outer sides of the two main transmission gears are each provided with a driving disc, and the driving discs are located at the two ends of the hub wheel cylinder and rotatably installed on the hub middle shaft rod. And one end of the inner side of the driving disc is connected with the main transmission gear and is connected with the hub wheel cylinder through a ratchet wheel structure. According to the utility model, a circular motion type idle work part can be directly omitted, and the maximum power output angle is generated during the motion power generation for each step, so that the riding efficiency is improved to the maximum extent.

The invention discloses a metal pipe fitting assembling and laser marking device, relates to the technical field of laser marking, and aims to solve the technical problem that the metal pipe fitting laser marking efficiency is low. Metal pipe fittings are carried to the rotary assembling and marking integrated mechanism on the rotary bearing table through the first grabbing mechanism, firstly, the two metal pipe fittings are subjected to rotary thread assembling through the rotary assembling and marking integrated mechanism, and then the assembled metal pipe fittings are rotated to the position under the laser marking mechanism through the rotary bearing table to be subjected to laser marking; according to the metal pipe fitting assembling and marking device, the assembling function and the marking function are integrated on a production line of the same equipment, the frequency of material transferring is reduced, the production period is shortened, and the machining efficiency of the metal pipe fitting is improved.

The utility model discloses a deformed steel bar clapper type brake which comprises a clapper brake block, a leveling spring, a driving lever and a brake cylinder, the brake cylinder is hinged to an apron board protection platform through a pin shaft, the end of a piston rod of the brake cylinder is hinged to the tail end of the driving lever, and the middle of the driving lever is hinged to the front end of the apron board protection platform. The front end of the driving lever is bent and hinged with a beating plate brake block; the leveling spring is arranged between the back surface of the beating plate brake block and the front part of the driving lever; an apron board roller way supporting wall plate is arranged below the apron board protection platform, and an apron board roller way driven by a roller way motor is arranged on the wall plate.

The sliding block auxiliary balance assembly comprises a movable mold plate, a first sliding block and a first core-pulling oil cylinder, the first sliding block is installed on the movable mold plate in a sliding mode, and the first core-pulling oil cylinder drives the first sliding block to move in a reciprocating mode. One of the movable mold plate and the first sliding block is rotatably provided with a balance rod, the other one of the movable mold plate and the first sliding block is provided with racks in pairs, the two ends of the balance rod are provided with balance gears, and the balance gears are connected with the racks in a meshed mode. By arranging the balance rod, the balance gear and the rack, transmission of force on the two sides of the first sliding block is optimized, the movement stability and durability of the first sliding block with the length larger than 1000 mm are remarkably improved, the jamming phenomenon is reduced, the production efficiency is improved, operation is simplified, and the manufacturing and maintaining cost is reduced.

The present invention provides a bionic manta ray robot based on a sinusoidal oscillating wave fin structure, comprising: a body unit; a fin unit, comprising two wave fin assemblies respectively connected to both sides of a main body plate; a sinking and floating unit, located in the shell and installed above the main body plate, the sinking and floating unit comprising a center of gravity adjustment mechanism and a first driving device driving the center of gravity adjustment mechanism to operate; wherein the wave fin assembly comprises a plurality of second driving devices, a plurality of flexible rods and a flexible skeleton, the plurality of second driving devices are installed at intervals along the direction from the head end to the tail end of the shell, and the plurality of flexible rods are respectively connected to the plurality of second driving devices. The present invention moves by means of the propulsion force generated by the wave fin assembly, and controls the sinking and floating of the present invention by the sinking and floating unit, so that the present invention has the advantages of high movement efficiency, good maneuverability, strong stability and anti-interference ability, and low environmental disturbance, and can complete underwater detection, underwater shooting and other tasks at a low speed.

The invention discloses an air conditioning vest based on semiconductor refrigeration and a temperature control system and method, relates to the technical field of air conditioning vests, and can set an initial temperature regulation value in a personalized manner by monitoring the heart rate, the body temperature and the sweat secretion amount of a wearer in real time so as to provide accurate comfortable experience. According to the scheme, the physiological change of a wearer is quickly responded, the exercise efficiency and safety are improved, the energy waste is reduced, the problems of inaccurate temperature adjustment and insufficient comfortable experience are effectively avoided, the comfort and safety of the wearer in exercise are remarkably improved, and the user experience is improved. The personalized adjustment can help the user to keep the optimal sensible temperature under different exercise intensities and environments, and through personalized analysis of the initial temperature regulation value, the system can reduce the condition of excessive cooling and avoid energy waste. The precise regulation and control mode is beneficial for improving the energy efficiency of the refrigerating system and reducing the energy consumption.

The present invention relates to a tetrahedron tumbling robot and a method for optimizing its motion joint parameters, wherein the robot realizes tumbling motion by the combined swinging of its support arms, the motion steps are simple and each joint can be independently controlled, which simplifies the overall structure of the robot and reduces the control difficulty; by determining the characteristic parameters of the tetrahedron tumbling robot, the tumbling shape of the tetrahedron tumbling robot is screened out in combination with the tumbling conditions; the optimal target value of the swing joint is determined by the relationship between the robot's shape and the time required for tumbling at a specific joint motion speed; and a method for changing the angle of the robot's rotating joint is provided. Compared with the prior art, the present invention solves the shortcomings of the tetrahedron tumbling robot having many motion steps and a time-consuming motion process, so that the corresponding tetrahedron tumbling robot takes the shortest time to move under the joint parameters, thereby improving the robot's motion efficiency.

The invention belongs to the technical field of additive preparation, and particularly relates to a preparation process and preparation equipment of an additive for concrete mortar, and the preparation process of the additive for concrete mortar is characterized by comprising the following steps: S1, preparing raw materials; the preparation method comprises the following steps: selecting high-quality raw materials such as a water reducing agent monomer, an initiator, a chain transfer agent, a retarder and an air entraining agent, removing impurities, and accurately weighing each component for later use; s2, carrying out a synthetic reaction; the preparation method comprises the following steps: firstly, carrying out water reducer component polymerization reaction, and controlling temperature and time; adding the retarder, the air entraining agent and other components, and uniformly stirring; s3, separation and purification; putting the synthesized mixture into a separator, and carrying out separation and purification operation; according to the invention, a plurality of impurity removal methods are combined through a single power source, so that the problems of reducing the occupied area of equipment, improving the filtering efficiency, avoiding the blockage of the filter screen and the like can be effectively solved while the impurity removal effect is improved.

The utility model relates to the technical field of chip mounting, in particular to a cleaning device and a cleaning assembly, which comprise a cloth roll winding assembly, a cleaning table structure, a spraying structure and a mounting frame, the cloth roll winding assembly, the cleaning table structure and the spraying structure are arranged on the same side of the mounting frame, the cleaning table structure and the cloth roll winding assembly are arranged in a spaced mode, a cleaning cloth conveying route is defined between the cloth roll winding assembly and the cleaning table structure, and the spraying structure is arranged close to the cleaning cloth conveying route. The cleaning device provided by the utility model solves the technical problems that the manual cleaning of the suction nozzle of the chip mounter needs shutdown operation and the cleaning degree of the suction nozzle is greatly influenced.

The utility model relates to the technical field of air conditioning units, and provides a pull-out type U-shaped air conditioning heat pipe convenient to overhaul, which comprises a unit base and a unit frame fixedly mounted on the unit base, a unit access door is arranged at one end of the unit frame, a unit panel is arranged at the other end of the unit frame, a heat exchange coil is arranged on the unit base, and the unit access door is arranged on the heat exchange coil. A U-shaped heat pipe connected with the heat exchange coil pipe is arranged on the unit base, a door locking assembly used for installing the unit access door is arranged between the unit frame and the unit access door, and a drawing assembly facilitating disassembly of the U-shaped heat pipe is arranged in the unit frame. According to the utility model, through the arrangement of the drawing assembly, the dismounting difficulty of the U-shaped heat pipe is reduced, the mounting and dismounting convenience of the U-shaped heat pipe is improved, and through the arrangement of the bearing pulleys, the friction force between the U-shaped heat pipe and the unit base is converted from sliding friction to rolling friction, so that the friction force during the movement of the U-shaped heat pipe is greatly reduced, the movement efficiency of the U-shaped heat pipe is improved, and the service life of the U-shaped heat pipe is prolonged. And a worker can conveniently pull out the device.

The present invention relates to a deformable Mecanum wheel, comprising a driving shaft, an outer wheel and two roller groups, the two roller groups are respectively spaced and coaxially sleeved on the driving shaft, at least one roller group can be moved and positioned along the axial direction of the driving shaft; the outer wheel is fixedly coaxially sleeved on the driving shaft, and is located between the two roller groups; at least one roller group is moved so that the two roller groups are separated from each other, the outer wheel can be extended between the two roller groups, and its edge is located outside the edge of the roller group, or the two roller groups are close to each other until they fit together, and the outer wheel can be retracted between the driving shaft and the two roller groups. The beneficial effects of the present invention are compact structure and reasonable design, which can not only ensure that the wheel can turn normally, but also effectively improve the efficiency of wheel movement, and ensure that the wheel can walk normally on a rough road.

The present invention discloses a fully automatic double-flexible arm intubation system, comprising a medical bed and a supporting calibration pillow arranged on the medical bed, the supporting calibration pillow being arranged in cooperation with a controller, and a double-flexible arm intubation robot being arranged outside the medical bed in cooperation with the human head on the supporting calibration pillow; the double-flexible arm intubation robot being arranged in cooperation with the controller; the present invention realizes the coarse positioning and fine positioning of the human oral cavity by the fully automatic double-flexible arm intubation robot through the supporting calibration pillow on the medical bed and an external environment camera.

The utility model relates to the technical field of telescopic arms, and particularly discloses a simple compact type large-stroke telescopic arm structure which comprises a base. The first-section arm is installed on the base, the second-section arm is installed on the first-section arm, an external mechanical arm is installed on the second-section arm, the driving mechanism is arranged on the base, the driving mechanism is connected with the first-section arm and the second-section arm, and the driving mechanism is used for driving the first-section arm to move relative to the base and driving the second-section arm to move relative to the first-section arm. The double-section type telescopic arm is large in stroke, capable of meeting the requirement for large-amplitude movement, simple in structure, scientific in design, convenient to use, high in movement efficiency and stable and reliable in work.