128results about How to "Reliable control" patented technology

The invention provides a mechanical arm sliding mode control method, and belongs to the technical field of robot control. A forward kinematics model of a mechanical arm which does not meet the Pieper rule is established; according to the forward kinematics model, a mechanical arm kinetic model is established by adopting a Lagrange method, an inverse kinematics equation corresponding to the forward kinematics model of the mechanical arm is solved by adopting an improved gradient descent method based on a Jacobian matrix, and a joint angle value of the solved mechanical arm is obtained; according to the joint angle error, a linear sliding mode surface is designed, sliding mode control is conducted on the joint angle, a sliding mode control law is obtained through construction according to a modeling estimated value in a mechanical arm dynamic model, and a sign function in the sliding mode control law is replaced with a hyperbolic tangent function. According to the method, the accuracy of inverse kinematics solution is ensured, the problem of moment jittering in sliding mode control is effectively reduced, and the mechanical arm which does not meet the Pieper rule is controlled to complete a high-precision motion control operation task.

The invention relates to the technical field of power line protection, and discloses a direct-current ice melting device and a control method thereof.According to the direct-current ice melting device, an alternating-current bus of an original alternating-current ice melting module is connected into the direct-current ice melting module through an isolation grounding switch, and the control relation between the alternating-current ice melting module and the direct-current ice melting module is optimized; the alternating current ice melting module and the direct current ice melting module are controlled in a coordinated mode through the control module, on the premise that reliable and effective control is guaranteed, control hierarchy arrangement is reduced, a control link is made to be simple and efficient, control time delay is reduced, protection action time when a system breaks down is shortened, free and automatic switching of the two ice melting modules can be achieved, and the system reliability is improved. And the ice melting efficiency is improved.

The invention discloses a motor temperature control method, system and device, and relates to the technical field of digital signal processing, and the method comprises the steps: receiving a cooling liquid request signal; the current temperature of the motor, the working state of the motor, the outflow temperature of cooling liquid and the target temperature of the motor are obtained, the flow of the cooling liquid is obtained based on the first calculation model, and the target valve opening degree is obtained based on the second calculation model; obtaining an initial current conversion coefficient, and obtaining first power driving operation time based on the prediction model; driving the operation time according to the first power to generate current for controlling opening of a plurality of electromagnetic valves, and acquiring actual valve opening degrees of the electromagnetic valves; obtaining an opening difference value, obtaining a correction index, correcting the initial current conversion coefficient according to the correction index, and generating a corrected current conversion coefficient; second power driving operation time is obtained based on the prediction model, and current for controlling the electromagnetic valve to be opened is generated according to the second power driving operation time. The method has the advantages of accurate control, stability, reliability and continuous correction and optimization.

The utility model discloses a powder control device and a flux-cored wire powder coiling machine. The powder control device comprises a powder control seat, and the powder control seat is provided with a powder control ratchet wheel used for trowelling and compacting brazing flux powder contained in a U-shaped welding strip; the powder control ratchet wheel comprises a ratchet wheel body and pawls evenly distributed on the outer side of the ratchet wheel body in the circumferential direction, each pawl comprises a plane and an arc face, and chamfers are arranged on the edges of the two sides of each arc face. The powder control ratchet wheel is adjustable in height and can rotate around the axis of the powder control ratchet wheel. When the powder control ratchet wheel rotates, the rotation direction of the lowest point of the powder control ratchet wheel is opposite to the advancing direction of the U-shaped welding strip, and the plane of a pawl at the lowest position of the powder control ratchet wheel faces the conveyed U-shaped welding strip and brazing flux powder contained in the U-shaped welding strip and can prevent redundant brazing flux powder from being unloaded. The flux-cored wire powder coiling machine comprises a belt releasing mechanism, a U-shaped roller seat, a powder hopper, the powder control device, a wire coiling forming die seat and a coiling mechanism which are arranged in sequence.

The invention discloses a fine-grained access control method of an intelligent lighting system combining CP-ABE and a block chain, and the method comprises the following steps: initialization: carrying out the initialization of the CP-ABE through an attribute authorization mechanism, and generating a public key and a master key of the CP-ABE; key generation: the user generates a private key of the attribute of the identity by using the audited attribute of the identity, the public key and the master key, and a single user can have a plurality of different private keys; data encryption: formulating an access rule, and encrypting the data to generate an encrypted file of a file suffix bit CP-ABE after a data owner formulates the access rule; the user stores the chameleon hash value of the ciphertext file, the access control strategy of the ciphertext file and the path of the IPFS on the IPFS where the ciphertext file is located to block chain data; the method has the advantages of high safety, high accuracy and the like.

The invention discloses a furnace rear flue gas water-cooling comprehensive temperature control system and a matched cooling water amount control method, and particularly relates to the technical field of flue gas purification and environmental protection, the furnace rear flue gas water-cooling comprehensive temperature control system comprises a semi-dry desulfurization tower, a cyclone dust collector, a bag-type dust collector and a low-temperature SCR denitration device of which the output ends are sequentially communicated in series; the outlet flue of the cyclone dust collector and the inlet flue of the bag-type dust collector are respectively and fixedly communicated with a communicating flue which is connected with an electric air door in series, and the surface type water-cooling flue gas cooling system comprises a water-cooling flue gas cooler which is at least communicated with a cooling water supply pipeline. A comprehensive temperature control system combining a surface type water cooling flue gas cooling system and a flue gas emergency water spraying cooling system is adopted, a matched cooling water amount control algorithm is formulated from the enthalpy value heat balance principle, the surface type cooling water flow and the spraying water amount are accurately controlled, it is effectively ensured that the boiler rear flue gas temperature meets the flue gas purification process requirement, and the boiler rear flue gas purification efficiency is improved. Meanwhile, heat released in the flue gas cooling process is recycled, and the circulating efficiency of the power plant is further improved.

The invention relates to the field of unmanned aerial vehicle control, and provides an unmanned aerial vehicle automatic landing control method, which comprises the following steps of: initializing an IMU (Inertial Measurement Unit) sensor, setting an initial attitude and a speed value, starting a binocular camera system and the IMU sensor on an unmanned aerial vehicle, calibrating a binocular camera, and ensuring the consistency and accuracy of image acquisition. The unmanned aerial vehicle can accurately identify ground markers and calculate accurate position and attitude information relative to the ground by adopting a data fusion technology of a binocular camera system and an IMU (Inertial Measurement Unit) sensor, so that not only is the positioning accuracy improved, but also the unmanned aerial vehicle can realize a more stable and accurate automatic landing process under a complex environment condition, and the unmanned aerial vehicle is more convenient to use. In addition, data processing is carried out in combination with an extended Kalman filter, the robustness of the system is further enhanced, it is ensured that good control performance can be kept even in the face of external interference, and therefore the safety and reliability of landing are remarkably improved.

The utility model relates to the technical field of fault generating instruments, and discloses a rotating equipment fault generating instrument, which comprises a support used for supporting other structures of the generating instrument. The driving part is arranged on the bracket; the main shaft is arranged on the driving part and is used for bearing and transmitting the rotary motion and power of the driving part; the working area is arranged on the main shaft for detection work; the stabilizing shaft is arranged at the end, away from the driving piece, of the spindle and used for stabilizing supporting of the spindle. The working area comprises a first sensor, an eddy current probe support, a trial weight disc, a second sensor and a key phase support.

The invention relates to the field of modernization of traditional Chinese medicines, in particular to a method for identifying a Dayuan liquid preparation. The invention respectively provides thin-layer chromatography identification methods for pogostemon cablin, bupleurum chinense and glabrous sarcandra herb in the daoyuan liquid preparation, the thin-layer chromatography identification methods for the three components are good in specificity, repeatability and stability, and effective quality control of the daoyuan liquid preparation can be realized.

The present application relates to a cockpit system, a method for improving safety performance of a vehicle, a control system, a computer program product and a medium. The cockpit system comprises a first row providing a first row seating space; a second row providing a second row seating space, the second row being located at a rear side of the first row; a movable component, the movable component comprising a moving part, a moving track of the moving part being configured to enable the moving part to move from the first row seating space to the second row seating space; and a sensing element, a sensing range of the sensing element comprising: the moving part, and an obstacle object located at the second row seating space, the obstacle object being located at the moving track of the moving part, the sensing element being configured to sense a safety parameter between the moving part and the obstacle object, when the safety parameter does not meet a requirement of a safety threshold, the moving of the movable component can be stopped or decelerated, or a system alarm is triggered.

The invention belongs to the technical field of observable technology, and provides an electric power information system alarm traceability method and system based on redundancy processing and observation, after alarm information corresponding to a traceability object is determined, alarm types are matched according to the determined alarm information, and the alarm information is displayed on a graphical interface according to the matched alarm types; specifically, when graphical interface display is carried out, whether the alarm type is index alarm is judged, if yes, index graphical interface display is carried out, if not, whether the alarm type is link alarm is judged, if yes, link graphical interface display is carried out, and if not, log graphical interface display is carried out; according to the method, the type matching is performed according to the alarm source, and the graphical interface display object is automatically judged and determined according to different alarm types, so that the judgment efficiency is improved, the overall alarm traceability and the observability of fault information are realized, and the traceability accuracy is ensured.

This application provides an ice-making device control method, an ice-making device, and a refrigerator. The ice-making device includes an ice scraper with a reference position and a position sensor at that position. The ice-making device control method includes: controlling the ice scraper to rotate in a first direction in response to an initialization signal from the ice scraper; monitoring the state of the position sensor during the rotation of the ice scraper; and if the position sensor is detected to be triggered, controlling the ice scraper to stop rotating from the reference position for a set time, and marking the current position of the ice scraper as the initial position. The technical solution of this application can generate the initial position of the ice scraper, so as to accurately position the ice scraper after initializing the refrigeration device, thereby improving the reliability of the ice-making device.

The application discloses a relay driving circuit, comprising a power module, a starting switch, a main control module and a switch module, the power module is used for providing stable working voltage for the system, the starting switch is used for outputting a starting signal of the relay, a control signal input end of the main control module is connected with the starting switch, the main control module is used for outputting a corresponding pulse driving signal according to the starting signal, an input end of the switch module is connected with a control signal output end of the main control module, an output end of the switch module is electrically connected with the relay, and the switch module is used for driving the relay to work according to the pulse driving signal. The switch module of the application can drive the relay to work according to the pulse driving signal, compared with the traditional relay directly driven by the switch, when the program of the main control module runs out of control or crashes, the pulse driving signal will stop outputting, thereby stopping driving the relay and making the load stop working, and further preventing the household appliance from burning or the occurrence of safety accidents.

The invention relates to a method for an electric shovel tail wire winding and unwinding vehicle to automatically follow an electric shovel. The method comprises the following steps that a base station is arranged, and GPS modules are installed on the tail wire cable winding and unwinding vehicle and excavation equipment; according to the GPS signal and the base station signal, a tail cable take-up and pay-off vehicle and mining equipment are positioned; the tail cable take-up and pay-off vehicle automatically follows the excavation equipment according to the real-time position of the excavation equipment; and if the tail cable take-up and pay-off vehicle cannot receive the GPS signal and the base station signal or the mining equipment signal exceeds the range and the distance between the tail cable take-up and pay-off vehicle and the mining equipment exceeds the set range, an alarm is given, and the automatic following mode is switched to the manual mode. According to the method for automatically following the electric shovel by the electric shovel tail wire take-up and pay-off vehicle, the tail wire cable take-up and pay-off vehicle can automatically follow the excavation equipment through the base station signal and the GPS signal, power transmission from the mine fixed power source output point to the electric shovel tail wire take-up and pay-off vehicle and then to the electric shovel is achieved, and control is reliable.

The invention discloses a handheld three-dimensional structured light scanning device which comprises a camera fixing frame, a structured light source fixing block, a sliding guide rail, a handle and a deep groove ball bearing, an imaging camera is installed on the camera fixing frame, a linear laser is installed on the structured light source fixing block, the sliding guide rail is sleeved with the structured light source fixing block, and the handle is installed on the sliding guide rail. The linear laser can freely slide on the semicircular sliding guide rail, so that the angle of the linear laser is adjusted. The sliding guide rail and the camera fixing frame are rotationally connected through a deep groove ball bearing and can rotate freely. And the sliding guide rail is fixedly connected with the deep groove ball bearing. Similarly, in order to fix the linear laser, the structured light source fixing block is fixedly connected with the linear laser; and at the tail end of the camera fixing frame, the handle is fixedly connected with the camera fixing frame.

The invention belongs to the field of air-cooling cabinet control, and particularly discloses an air-cooling cabinet control device and a control method thereof.The air-cooling cabinet control device comprises a cooling module, the cooling module comprises a plurality of cooling assemblies, each cooling assembly comprises a power source and two fan sets, and each fan set comprises a cooler and a fan. The automatic control mode comprises the following steps that S1, the number n of coolers needing to be put into operation at the current moment is calculated; s2, the number n0 of coolers put into operation at present is obtained, and n0 is compared with n; s3, if n0 is greater than n, quitting (n0-n) coolers which are put into operation; and if n0 is smaller than n, (n-n0) non-running coolers are added. According to the method, the starting number of the coolers is determined according to the top oil temperature and the winding temperature during operation of the transformer, the situation that the hot spot temperature distribution difference of the transformer is large when the top oil temperature rises is fully considered, reliable and effective control over the temperature rise of the transformer is achieved, and safe and stable operation of the transformer can be guaranteed.

The utility model discloses a kind of power supply plugs of intelligent remote control, it is related to power supply plug technical field, including plug main body, function board and protective housing;The protective housing is set in the plug main body outside, the function board is set in the protective housing inside, the function board with the plug main body electric connection.The protective housing includes rear shell, the rear shell inside is provided with function board, the function board with the plug core electric connection;Power supply control module, wired communication module, wireless communication module and voltage and current monitoring and protection module are provided on the function board;By integrating power supply control module, wired communication module, wireless communication module and voltage and current monitoring and protection module on function board, realize equipment long-distance, stable and reliable power supply control, improve industrial production efficiency, reduce operator labor intensity and safety risk.

The application discloses a single-sensor network-configuration type converter and a control method thereof, relates to the technical field of power electronics and power systems, and comprises a power module composed of a plurality of power switches, an alternating-current filter connected between the power module and a power grid, a direct-current link voltage sensor for measuring a direct-current link voltage, a direct-current link current sensor for measuring a direct-current link current, and an alternating-current voltage sensor for measuring an alternating-current side voltage. A controller receives measurement signals from the direct-current link voltage sensor, the direct-current link current sensor and the alternating-current voltage sensor, reconstructs a converter side current from the measured direct-current link current based on a current reconstruction strategy, performs power measurement by using the reconstructed converter side current and the measured capacitor voltage, and generates a control signal to drive on-off of the power switches according to the measured power, a reference value of the measured power and the direct-current link voltage. The method significantly reduces the hardware cost, volume and complexity of the system.

The invention discloses a pair of reusable bipolar electrocoagulation forceps, and belongs to the technical field of electrosurgical operating instruments. According to the bipolar electrocoagulation forceps, the first shell and the second shell can be detachably connected through the magnetic attraction assembly, the actuator assembly is arranged at the far end of the rod assembly, and the forceps rod driving mechanism and the cutter rod driving mechanism of the control assembly are arranged on the support, so that after the bipolar electrocoagulation forceps are used, the shell assemblies can be rapidly disassembled, and the operation is convenient. The rod assembly of the integrated structure is detached from the support, so that the forceps head and the cutting blade are more convenient to clean, sterilize and disinfect; besides, the cutting mechanism, the forceps rod and the outer rod are nested and connected into an integrated structure from inside to outside, the forceps rod driving mechanism is in transmission connection with the part, exposed out of the outer rod, of the forceps rod, and the cutter rod driving mechanism is in transmission connection with the part, exposed out of the forceps rod, of the cutter rod. On the other hand, the control assembly can control the cutter bar and the forceps rod more stably and reliably.

The present invention belongs to the field of PID control technology, and specifically relates to a multi-manipulator collaborative control method based on a fish scale prediction algorithm and PID, wherein the steps include introducing a fish scale prediction algorithm in a multi-manipulator collaborative operating system; in the multi-manipulator collaborative operating system, each manipulator has multiple degrees of freedom, and each degree of freedom needs to be controlled, so as to establish a state space of the multi-manipulator collaborative operating system; in the multi-manipulator collaborative operating system, PID control is introduced; a disturbance offset PID control theorem is established, and the disturbance offset PID control theorem is applied to the fish scale prediction algorithm to obtain a multi-manipulator parameter optimization controller; and the multi-manipulator parameter optimization controller is used to perform parameter setting of the multi-manipulator collaborative operating system, thereby realizing collaborative control of the multi-manipulator collaborative operating system. The present invention has strong anti-interference ability and fast response speed, and can better perform collaborative control of the multi-manipulator collaborative operating system.

The invention discloses a water tank assembly, a flushing system, a closestool and a control method thereof, the water tank assembly comprises a first water tank, a second water tank, a floating liquid level switch arranged on the second water tank, and a controller connected with the floating liquid level switch and a water inlet valve, when the first floating piece triggers a control signal lower than the first liquid level, and when the first floating piece triggers a control signal reaching the second liquid level, or when the first floating piece is lower than the first liquid level and reaches the first preset time, the water inlet valve is controlled to be opened; the first liquid level is higher than the second liquid level.

The utility model relates to the field of switching circuits, in particular to a PMOS (P-channel Metal Oxide Semiconductor) switching circuit, which is characterized in that a source electrode of a PMOS tube Q1 is connected with an input voltage end Vi n, and a drain electrode is connected with a load output end Vout; a base electrode of the triode Q2 receives the switching signal through a control signal end PWR, and an emitting electrode of the triode Q2 is grounded; the first divider resistor R1 is connected between the grid electrode of the PMOS tube Q1 and an input voltage end Vi n; the second divider resistor R2 is connected between the grid electrode of the PMOS tube Q1 and the collector electrode of the triode Q2; the first capacitor C1 is connected between the grid electrode and the source electrode of the PMOS tube Q1; the resistance value ratio of the first divider resistor R1 to the second divider resistor R2 is 1: 3 to 1: 5, the capacitance value of the first capacitor C1 is 10 nF to 100 nF, and the load capacitance C2 does not exceed 470 [mu] F. The voltage division ratio of R1 / R2 is matched with the capacitor C1, so that the conduction time of the PMOS is prolonged, the instantaneous charging current peak value of the load capacitor C2 is remarkably reduced, voltage drop is avoided, and the stability of the system is guaranteed.

The invention discloses a copper alloy chip heat dissipation shell and a welding method thereof, and relates to the technical field of welding. Comprising the following steps that the surface of a copper alloy welding part is subjected to finish machining, and a pretreated welding part is obtained; after the pretreated welding part is tightly assembled, welding flux is clamped, technological parameters are set, resistance welding is conducted, and a welding joint is obtained; wherein the technological parameters comprise the welding power of 10 KVA to 20 KVA, the welding pressure of 0.5 T to 1.5 T and the welding time of 3 s to 8 s; and performing post-welding treatment on the welding joint to obtain a copper alloy chip heat dissipation shell product. Resistance welding is adopted, the welding quality is accurately controlled by adjusting current, pressure and welding flux, preparation of a high-quality welding connector is achieved, welding can be rapidly completed at a time, the welding efficiency is high, the yield of finished products is high, the welded finished products are free of defects such as air holes and hot cracks, and the hardness and the conductivity of the products both meet the use requirements.

The application discloses a rear body contraction type fluid thrust vector nozzle, which comprises a contraction section, a static pressure cavity, a main jet outlet, a control valve, a contraction wall surface, a secondary flow inlet and a wall surface secondary flow hole. The contraction section is arranged above and below the static pressure cavity, the main jet outlet is arranged at the tail end of the contraction section, the contraction wall surface is arranged at the tail of the static pressure cavity, the secondary flow inlet is arranged on the side of the rear body contraction type fluid thrust vector nozzle, and the wall surface secondary flow hole is arranged on the contraction wall surface. The static pressure cavity is in communication with the secondary flow inlet and the wall surface secondary flow hole, and the secondary flow inlet is controlled by the control valve. The rear body contraction type fluid thrust vector nozzle can realize jet vector deflection control while reducing the thickness of the rear body, has a good application prospect in the integration design of the fluid thrust vector and an aircraft, and can further promote the practical application of the fluid thrust vector nozzle.

The utility model relates to the technical field of duct piece manufacturing, in particular to a duct piece surface finishing tool, which comprises a seat body and further comprises a plurality of groups of support rods which are arranged on the seat body and can move up and down, each support assembly comprises two support rods, and two ends of each support rod penetrate through a sliding chute of the seat body; the balance regulation and control assembly is arranged below the seat body, connected to the supporting assembly and used for automatically adjusting the height of each supporting rod so as to be attached to pipe pieces with different radians. The noodle pulling mechanism comprises a sliding rail arranged on the side of the seat body and a scraping rod capable of moving along the sliding rail, and is used for performing scraping treatment on a duct piece forming area; the state fixing mechanism comprises an electromagnet part and a magnetic attraction block, the electromagnet part is arranged below the seat body, and the magnetic attraction block is fixedly arranged on a middle piston of the balance regulation and control assembly and used for fixing the height position of the supporting assembly. According to the duct piece surface finishing tool, the supporting fitting degree can be automatically adjusted and surface scraping operation can be completed on the premise that a supporting component is not replaced and the contact surface of the duct piece is not separated.

The invention provides a locomotive traction control motor speed detection processing circuit. The locomotive traction control motor speed detection processing circuit comprises a filter amplification circuit, a hysteresis comparison isolation circuit and a bus buffer circuit, the filtering and amplifying circuit comprises a voltage adjusting resistor, a filtering capacitor, a filtering resistor, an amplitude limiting diode and an operational amplifier; the hysteresis comparison isolation circuit comprises a voltage regulation circuit, a hysteresis comparator and an isolation optocoupler; the bus buffer circuit is used for controlling cross transmission of each path of data on a bus; the bus buffer circuit includes a plurality of buffers. According to the invention, the voltage regulating resistor is matched with the voltage follower and the hysteresis comparator, so that the speed signal of the traction motor can be effectively detected and processed, and the conversion of the A / D signal is further completed by using the optocoupler isolation circuit.

The utility model discloses a kind of simulation training command communication devices suitable for flight simulator, including shell, the power supply component is set on the shell, the voice signal amplifier component is set on the shell, the PLC control component is set on the shell, the transceiving communication component is set on the shell, the power supply component, the voice signal amplifier component, the PLC control component and the transceiving communication component are connected by cable electricity between, interconnection and intercommunication between flight simulator and real-time interconnection with real aeronautical tower control system are realized jointly, multiple models flight simulator can be adapted, support multi-unit cooperative training, improve communication simulation fidelity and equipment stability, suitable for military and civilian aviation flight simulation communication training scene.

The present invention relates to the field of intelligent parking for commercial vehicles, and discloses an EPB valve system, an EPB valve assembly and an intelligent parking control method for commercial vehicles, wherein an air inlet is directly connected to a relay valve cavity; one is connected to a first solenoid valve, and another is connected to a pneumatic control valve; the first solenoid valve air inlet gas path is connected to the air inlet, and the air outlet gas path is connected to the control cavity of the pneumatic control valve and connected to a two-way check valve; the control cavity of the pneumatic control valve is connected to the first solenoid valve and the second solenoid valve; the air outlet gas path of the third solenoid valve includes an air path connected to the two-way check valve; the air outlet gas path of the second solenoid valve is connected to the exhaust port; the two-way check valve is connected to the upper cavity of the relay valve, the air outlet for connecting the parking is connected to the relay valve, and the exhaust port is connected to the relay valve. The valve system has the advantages of using fewer parts, convenient control, and no damage to the solenoid valve.

This utility model discloses a thermal management system and a vehicle. The thermal management system includes: a condenser on a first flow path, a heat exchanger on a first refrigerant branch, and the first flow path being connected to one of a second flow path, a first refrigerant branch, and a third refrigerant branch; an engine radiator and a heater core on a first circuit, and a heat exchange device on a second circuit; a first heat exchange channel connected in series on the second flow path, and a second heat exchange channel connected in series on the first circuit, with at least one of the first and second heat exchange channels exchanging heat with the engine's exhaust pipe; and a second heat exchange assembly, which includes a third heat exchange channel and a fourth heat exchange channel, the third heat exchange channel being connected in series on the refrigerant circuit, and the fourth heat exchange channel being connected in series on the second circuit. According to this utility model's thermal management system, while meeting the heating needs of the passenger compartment, it can reduce engine warm-up time during cold starts, reduce cold start fuel consumption, effectively save energy and reduce costs, and achieve integrated design.

The present invention discloses a fatigue testing device for a rotary pressure sensor, comprising a workbench, a force loading device connected to the workbench, a plurality of groups of detection components installed on the workbench, and a detection sensor installed on the workbench. The ends of adjacent detection components are connected by a steering component to form a rotary detection structure. Each group of the detection components comprises a plurality of sensors to be tested which are connected end to end. The force loading device is connected to the head of the rotary detection structure for force loading, and the detection sensor is connected to the tail of the rotary detection structure for data detection. The loading force of the force loading device of the present invention is transmitted in sequence through adjacent sensors to be tested, and a plurality of sensors to be tested can be tested at the same time, and the test efficiency is high. Each sensor to be tested adopts a serial rotary structure, so that its layout is flexible and can adapt to different layout sites, and the occupied space of the fatigue testing device is also reduced.