35results about How to "Improve COP" patented technology

This utility model discloses a novel window breaker, including a window breaking component and a cutting component. The cutting component includes a connecting block, a telescopic spring, a limiting plate, a button, and a blade. Operation via the button controls the blade to extend for cutting ropes, safety belts, etc. The window breaking component has a striking pin, a pressing element, an outer spring, and an inner spring. The striking pin is located inside the pressing element; the outer spring controls the pressing element's reset, and the inner spring controls the striking pin's extension. In use, the tube is held, the pressing element is pressed against the glass, and then the tube is pressed, causing the striking pin to eject and break the window. Upon ejection, the striking pin rotates due to the structure of the second guide groove, improving window breaking efficiency. The advantages of this technical solution are: it combines window breaking and cutting functions, addressing various emergency situations; it is easy to operate, both cutting and window breaking are simple and easy to learn; the structure is compact, making it easy to carry and store; the blade and striking pin will not be accidentally triggered when not in use; and it is highly efficient at breaking windows, quickly breaking glass of varying thicknesses.

This invention provides a maritime rescue method and system based on a heterogeneous unmanned system. The method includes: Step S1: acquiring accident information to generate a multi-dimensional decision model; the accident information includes accident type, accident location, information of personnel to be rescued, and environmental information; Step S2: automatically matching a corresponding rescue plan based on the multi-dimensional decision model; Step S3: deploying the heterogeneous unmanned system according to the rescue plan, enabling it to perform autonomous unmanned search along the rescue path and identify the searched targets; Step S4: controlling the heterogeneous unmanned system to complete the rescue based on the identification results. This invention effectively solves the main problems existing in current maritime rescue technologies and provides a complete technical solution for achieving efficient, rapid, and intelligent unmanned maritime rescue.

This application provides a method and system for elastic scheduling of containerized resources in a cloud computing environment, relating to the field of elastic scheduling technology for containerized resources. This application generates detailed data recording the resource competition relationships between tenants by acquiring various resource contention events; identifies preset high-frequency conflict patterns through in-depth data analysis, determining specific tenant groups with strong resource mutual exclusion effects; dynamically estimates the probability level of resource conflicts between new containers and specific tenant groups by combining historical contention information and real-time resource load status; generates a dynamic isolation scheduling strategy based on the conflict risk indicated by the probability level; and configures and adjusts independent conflict buffer resource pools for designated key tenants. This enables the identification of tenant resource conflict patterns and the implementation of dynamic isolation scheduling and buffer resource configuration, improving the resource utilization efficiency and system stability of multi-tenant containers in a cloud computing environment.

The invention relates to a remote sensing satellite task planning application performance evaluation method. The method comprises the following steps: establishing a hierarchical evaluation index system; definition and quantification of task completion capability indexes are completed; defining and quantifying resource utilization efficiency indexes; defining and quantifying a resource collaboration efficiency index; performing quantitative evaluation on the relative importance degree of each index element in the same level in the hierarchical structure and constructing a judgment matrix; checking the consistency of the judgment matrix; according to the judgment matrix, the proportion of elements in the hierarchical structure in the decision is calculated, and parameter weights including hierarchical single sorting and hierarchical total sorting are determined; and calculating a comprehensive efficiency evaluation value according to each index numerical value and the parameter weight. According to the method, quantitative evaluation of the application efficiency of satellite task planning can be realized, and closed-loop optimization of a task planning function in a remote sensing satellite management and control system is supported.

The invention provides an optimal scheduling method for a wind power and pumped storage combined operation system. The method comprises the following steps: solving a decision model based on a real-time data set and a risk preference coefficient to obtain a decision value set comprising an electric energy market standard, a frequency modulation capacity standard and a frequency modulation mileage standard of a power generation monomer, and scheduling the combined operation system; the objective function of the decision model aims at minimizing the total electricity purchase cost of the electric energy market and the frequency modulation auxiliary service market; the decision-making model is based on a historical data set, and the power market model and the joint operation system model are constructed by adopting multi-agent reinforcement learning and a deep neural network. The method is high in dynamic adaptability and robustness, facilitates improvement of declaration efficiency and result accuracy of the power market, can achieve collaborative scheduling of various energy sources, improves system stability, equipment utilization rate and energy utilization rate, reduces power generation cost and improves power generation benefits. And meanwhile, the coping capacity and the anti-risk capacity of the system for sudden load increase are improved.

The application discloses a kind of automatic driving test scene generation methods considering two-wheel vehicle driver behavior, comprising: obtaining the numerical data and text data of multiple motor vehicle-two-wheel vehicle traffic accident samples;Numerical data constructs classification variable matrix and continuous variable matrix;Traffic accident document set is obtained based on text data;The correlation of classification variable matrix is handled, and the data corresponding to redundant variable is deleted;For traffic accident document set, theme label classification and theme keyword extraction are carried out by GSDMM model, and accident reason classification variable matrix related to two-wheel vehicle driver behavior is generated;The above matrix is integrated to construct accident scene input variable matrix, and its row vector is clustered and analyzed to obtain cluster label matrix and cluster prototype matrix, so as to obtain the scene description corresponding to each traffic accident type, and automatic driving test scene is generated accordingly.The application can automatically generate automatic driving test scene with authenticity and diversity.

The present application belongs to the technical field of nuclear power plant physical simulation and simulation, and particularly relates to a nuclear power plant core instrument bay equipment simulation body and a simulation method. The simulation body comprises a driving unit, a group selector assembly and a path selector assembly, the driving unit is connected to the path selector assembly through the group selector assembly, the cable outlet end of the driving unit is connected to the group selector inlet end through a stainless steel pipe and a sleeve joint, and the group selector outlet end of the group selector assembly is connected to the path selector inlet end of the path selector assembly through a stainless steel pipe and a sleeve joint. The present application has the beneficial effect of improving training effect and efficiency, the RIC system simulation body can simulate the real operating environment of the nuclear power plant core, so that the trainees can learn and operate in a work scene close to the actual one, thereby more intuitively understanding the working principle and operation process of the core measurement system.

The application discloses an ecological protection and restoration planning method and system, and the method comprises the following steps: acquiring ecological multi-source data of a target region, performing spatial registration and format standardization processing through a geographic information system; constructing a three-dimensional ecological background model, and generating a gridded geographic unit by fusing the ecological multi-source data; performing dynamic coupling analysis on the ecological multi-source data by using a convolutional neural network, identifying an ecological degradation hotspot region, and outputting a spatial probability distribution map; based on the spatial probability distribution of the ecological degradation hotspot region and the ecological background model, generating a multi-level ecological restoration scheme through a self-organizing feature mapping neural network, and outputting a visual planning atlas. The scheme disclosed by the application improves the accuracy and efficiency of ecological assessment, reduces the economic cost of regional ecological protection and restoration, improves the efficiency, and can achieve good expected effects through tests, and has a good popularization prospect.

The invention relates to the technical field of intelligent traffic management and planning, provides an enterprise-oriented automatic driving vehicle cloud intelligent unit, and aims to construct an automatic driving cooperative operation system in which a vehicle end and a cloud end are coupled in real time for an enterprise. More specifically, the enterprise-oriented automatic driving vehicle cloud intelligent unit provides one or more of the automatic driving functions of vehicle cloud linkage at different spatio-temporal levels through vehicle cloud bidirectional integration and cooperative distribution of multi-source data and computing resources, such as perception, prediction, planning and decision, control, service, management, operation and maintenance. Therefore, automatic driving travel service, automatic driving remote service and automatic driving application value-added service are supported.

The application discloses a dengue fever prediction and early warning system based on heterogeneous data fusion and a graph neural network, and relates to the technical field of infectious disease prediction and early warning. The data acquisition module is used for acquiring case data, meteorological data, remote sensing vegetation index data, population flow data and social media sentiment data. The dengue fever prediction and early warning system based on heterogeneous data fusion and the graph neural network effectively improves the accuracy and precision of dengue fever epidemic prediction by integrating multi-source heterogeneous data and constructing a dynamic multi-dimensional graph structure for spatio-temporal coupling prediction. The use of a graph attention network and a time convolution network captures complex spatial dependence and temporal dynamics, and the use of a parallel model cross-verification and arbitration mechanism enhances the reliability of the prediction results, improves the sensitivity and stability of risk identification, and reduces false positives.

This utility model discloses a fire sprinkler system, including a vehicle shed and sprinkler components. The vehicle shed includes a main frame, supporting horizontal pipes, and a canopy. The canopy is located on top of the main frame, and the supporting horizontal pipes are fixed to the main frame and abut against the bottom of the canopy. The sprinkler components include a sprinkler riser connected to a fire hydrant network and at least one sprinkler branch pipe connected to the sprinkler riser. The sprinkler riser is fixed to the main frame, and the sprinkler branch pipes are located inside the supporting horizontal pipes. Each supporting horizontal pipe has at most one sprinkler branch pipe, and each sprinkler branch pipe has at least one fire sprinkler head passing through the supporting horizontal pipe. This utility model can provide shelter and protection for vehicles while meeting the requirements for efficient fire suppression.

The invention relates to the technical field of water source distribution, in particular to an urban multi-reservoir water source water quantity distribution method and system based on comprehensive evaluation information, and the method comprises the steps: obtaining the water supply priority characteristics of each reservoir in a target urban water supply network, and determining a core water supply region and a peripheral buffer region according to the water supply priority characteristics; determining a real-time water storage state sequence of each target reservoir in the core water supply area in the first scheduling period; generating an initial water source distribution list of the target city in the first scheduling period based on the real-time water storage state sequence; determining a reserve capacity change track of each reserve reservoir in the peripheral buffer area in the first scheduling period; and based on the reserve capacity change track, counting the total amount of deployable water resources of the target city in the first scheduling period. By quickly starting an emergency water taking mechanism, the adjustable water resources are effectively integrated into the target water source distribution scheme, so that the coping capacity of cities to sudden water crisis is improved.

The present application relates to the technical field of industrial automation and artificial intelligence, and particularly relates to a work behavior intelligent identification and guidance method and system. The method comprises: collecting multi-modal perception information of a work environment; identifying a current work behavior of an operator based on the multi-modal perception information; performing matching analysis on the current work behavior and a predefined target work behavior sequence to generate behavior difference information containing time sequence and quality deviation; and generating and outputting guidance instructions for guiding the operator based on the behavior difference information, the instructions being capable of controlling action parameters of an auxiliary execution device or output rhythm of interface prompts. Through multi-modal fusion perception, fine behavior difference analysis, dynamic personalized guidance and adaptive learning, the present application realizes precise, intelligent and flexible real-time guidance and collaborative control of the work process, effectively improving work quality, efficiency and human-machine collaboration level.

The application provides a self-adaptive control method for a brush, which comprises obtaining the current ground material type, the distance information between the brush and the wall, and the large-particle cleaning mode trigger signal, and determining whether to enter the wall-following cleaning mode and the large-particle cleaning mode based on the information. According to the determination result, the suction control parameter and the suction nozzle opening control parameter are automatically determined, and the corresponding control instruction is generated to drive the suction motor and the suction nozzle adjusting motor to adjust as needed. In this way, the device can adapt to different cleaning environments in real time, enhance the cleaning ability of large-particle garbage and difficult-to-clean areas such as corners, and significantly improve the cleaning effect. The device automatically optimizes the parameters in various cleaning tasks, providing a more efficient and intelligent cleaning experience.

The utility model discloses an unmanned aerial vehicle catching device convenient to load in the technical field of catching devices, which comprises a front side connecting seat and a rear side connecting seat, the upper part of the front side connecting seat is fixedly connected with a screw rod device, the rear side connecting seat is provided with a catching net winding roller, a catching net is wound on the catching net winding roller, and the catching net winding roller is fixedly connected with the screw rod device. A guide roller is rotationally connected to the front side connecting seat, a placement channel is formed between the guide roller and the lead screw device, a first motor is fixedly connected to one side of the rear side connecting seat, the first motor is connected with the catching net winding roller through a coupler, and a cutting blade is in transmission connection to the lead screw device. The catching net winding roller is arranged on the rear side connecting seat and matched with the guide roller and the lead screw device on the front side connecting seat, so that the catching net can be partially wound according to actual terrain requirements, the extending height of the catching net is effectively reduced, and the applicability of the device in complex environments such as urban streets, woods and dense building areas is improved through the design.

The present application relates to the technical field of digital asset management, in particular to a digital asset right and interest management system, which comprises a right and interest identification module, a right and interest distribution optimization module, an operation instruction generation module, a right and interest circulation optimization module and an instruction distribution module.In the present application, through accurate collection and analysis of digital asset state information, efficient identification and dynamic distribution of digital asset right and interest are realized, the rights and responsibilities in the asset life cycle are ensured to be clear and transparent, the standardization and safety in the asset circulation process are improved, and through intelligent decision set optimization and abnormal processing, the response capability and efficiency of the system are enhanced.The optimized asset right and interest distribution and circulation decision, combined with real-time data and historical trends, reduces the efficiency bottleneck and information lag in the traditional management mode, improves the transparency, traceability and safety of asset management, and enables more accurate control and protection of digital assets in a decentralized environment.

This invention relates to the field of network and information security technology, specifically to a risk intelligent decision optimization method based on security knowledge graph reasoning. First, multi-source security data is collected to construct a hierarchical security knowledge graph integrating behavioral and tactical relationships. Then, real-time security event sequences are mapped to initial behavioral relationships, and horizontal association expansion and vertical tactical abstraction are performed within the graph to generate causal attack paths with influence weights. Finally, the causal attack paths are input into a path simulator, and under defense resource constraints, the optimal adversarial decision sequence is solved based on Markov decision processes and reinforcement learning, driving automated response execution. This invention achieves visualized and quantitative evaluation of attack chains and global optimization configuration of defense strategies, improving proactive defense capabilities under limited security resources.

The invention provides an aircraft and a control method and device thereof, a medium and a product, and the method comprises the steps: obtaining operation condition parameters during the operation of the aircraft, predicting a loading and unloading event which is about to generate load jump by detecting the operation condition parameters of the aircraft in real time, and controlling the loading and unloading event in a lift force storage mode. The total lift force is kept constant, the reference rotating speed of the rotors is increased, and the reference total pitch of the rotors is reduced, so that the lift force reserve is improved, and the lift force sudden change coping capacity is improved. Moreover, when a load loading and unloading event occurs, the lift force is adjusted by adjusting the total pitch of the rotors preferentially, the response speed is higher than that of motor rotating speed adjustment, the lift force change event can be responded rapidly, the stability of the fuselage during cargo loading and unloading is improved, and the height sudden change and control protection risk are reduced. Besides, the working state of each group of rotors is independently calculated, the rotating speeds and the total distances of the N groups of rotors are allowed to be different from each other, the multi-rotor efficiency difference caused by crosswind, forward flight, suspension offset, mutual interference of the rotors and the like is adapted, and the comprehensive energy consumption is reduced.

The invention relates to the technical field of tunnel construction drainage, in particular to an inclined shaft tunnel relay type reverse slope drainage system which comprises an excavation water collection facility, water pumping and drainage equipment and a control system, the excavation water collection facility comprises a water collection ditch and a water collection pump pit, the water collection ditch is used for communicating water in a tunnel, and the water collection pump pit is connected with the water collection ditch; the water collecting pump pit is lower than the water collecting ditch; the water pumping and draining equipment comprises a submerged pump, a connecting pipeline, a buffer water tank and a booster pump, the submerged pump is located in the water collecting pump pit, the buffer water tank is located in the inclined shaft ramp, the submerged pump and the buffer water tank are connected through the connecting pipeline, the booster pump is located on the ground, and the buffer water tank and the booster pump are connected through the connecting pipeline; the control system comprises a drainage management unit, a filtering unit, a blocking unit, an early warning unit, an emergency unit and a console. The problems that in the prior art, an inclined shaft tunnel relay type reverse slope drainage system is low in intelligent degree and poor in collaboration, and backflow cannot be avoided are effectively solved.

This invention discloses a frequency-safe unit combination method that considers the changes in primary frequency regulation parameters and damping ratios of wind turbines. The method includes: constructing a power system frequency response model that incorporates the frequency support of wind turbines and synchronous generators, based on the ability of wind turbines' virtual inertial control and droop control to participate in frequency regulation; performing an inverse Laplace transform on the power system frequency response model and applying Euler's formula to obtain frequency constraint expressions under underdamped, overdamped, and critically damped states; transforming the nonlinear maximum frequency deviation constraint into a linear convex constraint using a hyperplane linearization method; constructing a frequency-safe unit combination model using the virtual inertia coefficient and droop coefficient of the wind turbines as decision variables; and solving the frequency-safe unit combination model to obtain a day-ahead unit combination scheduling method. This invention significantly reduces frequency regulation costs while ensuring frequency safety by adjusting wind turbine frequency regulation parameters, thereby improving the system's ability to respond to frequency safety risks.

The invention discloses a heat-dominated island integrated energy system based on multi-energy complementation and an operation method of the heat-dominated island integrated energy system, and belongs to the technical field of integrated energy utilization. The system supplies power to an island power grid through a wind driven generator and photovoltaic heat, produces hydrogen through an electrolytic tank, stores hydrogen through a hydrogen storage tank, and supplies the hydrogen to a hydrogen load or generates power through a fuel cell. According to the system, a low-pressure and low-temperature heat storage tank and a high-pressure heat storage tank group (high-pressure medium-temperature / high-pressure low-temperature) are innovatively constructed, and photovoltaic heat, waste heat of a hydrogen electrolytic tank and waste heat of a fuel cell are recycled and stored in the low-pressure and low-temperature heat storage tank. The low-temperature heat energy is used as a heat source of a heat pump after being subjected to auxiliary heating of a geothermal well, and heat generated by the heat pump is stored in a high-pressure medium-temperature heat storage tank The heat energy of the high-pressure medium-temperature heat storage tank can be supplied to the medium-temperature heat load and can also drive the ORC system to generate power. Efficient gradient utilization of wind, light, terrestrial heat and waste heat is achieved, and the energy self-sufficiency rate and the system stability of the island microgrid are remarkably improved through bidirectional flexible adjustment of electric power and thermal power.

An oil separation system compact layout mine explosion-proof refrigeration unit, including screw compressor, oil cooler, economizer, condenser and evaporator, also includes a series of first oil separator and second oil separator, two oil separators preferably vertical structure, close to and parallel arrangement, can replace the bulky horizontal oil separator, make full use of mine roadway vertical space, significantly reduce the equipment volume. The condenser refrigerant output end is divided into three, three refrigerant through the synergistic heat exchange between the economizer, evaporator and oil cooler, can be supercooled treatment of refrigerant working fluid, reduce the evaporation of liquid and oil cooling liquid gas flash, strengthen the evaporation heat transfer and oil cooling heat transfer effect, ensure the temperature stability of lubricating oil, reduce the refrigeration unit with liquid. It can take into account the underground narrow roadway transport and installation, avoid the equipment module in the process of moving collision, improve the working efficiency of refrigeration unit, meet the needs of various small mine mining.

This invention discloses a deep learning-based simulation method for scheduling electronic atomization production lines, comprising: S1, collecting and preprocessing historical production data from the electronic atomization production line to construct a standardized dataset; S2, constructing and training an electronic atomization production line scheduling model using a multi-dimensional spatiotemporal collaborative Transformer network; S3, inputting real-time production line status information into the trained electronic atomization production line scheduling model and evaluating production line operation indicators to generate an optimized set of candidate scheduling strategies; S4, constructing a multi-objective simulation environment for the electronic atomization production line and simulating the execution of the optimized set of candidate scheduling strategies; S5, using an improved multi-objective ant colony optimization algorithm to select the optimal scheduling strategy; S6, applying the optimal scheduling strategy to the actual production line and collecting feedback information in real time; S7, continuously iteratively optimizing the scheduling model based on the feedback data. This invention improves production line operating efficiency, resource utilization, and scheduling response capabilities.

The utility model discloses a kind of modularization antiskid bottom lines's light sandals, it is related to light sandals field, including buffer type antiskid component, buffer type antiskid component is fixedly installed with module type support component below;The buffer type antiskid component contains buffer pad, improve the friction of foot bottom and vamp by the internal structure of buffer type antiskid component simultaneously convenient to wear;The module type support component contains support sole, and the different style lines groove of module type support component bottom can improve the device grip ability.The modularization antiskid bottom lines's light sandals, through the first antiskid groove carved on the bottom of support sole cooperation protective pad and the second antiskid groove carved on the bottom of protective pad, then cooperate on antiskid soft pad, reach device when using can improve the friction between user sole and device while improving the response capability of device bottom facing different road surface, to enhance the antiskid performance of device adapting different road surface, improve device antiskid effect.

The utility model provides a teaching aid capable of simulating and practicing setting of a battlestick. The teaching aid comprises a base, a shell, a rotating assembly, an indicating block, a stick plate, a rotating assembly, a rotating rod and a dial, the shell is installed on the surface of the base, the rotating assembly is arranged in the shell and comprises two driving wheels and a belt, and the belt is arranged between the two driving wheels; the indicating block is connected to the surface of the belt, and the ruler plate is installed on one side of the inner wall of the shell. The rotating assembly is arranged on the surface of the shell; the rotating rod is arranged between one driving wheel and the shell; the dial is arranged on one side of the rotating assembly. The utility model provides a teaching aid capable of simulating and practicing the setting of a battle, which can greatly facilitate a teacher to explain parts when practicing in a combat room and explain the setting of the battle aiming at the correction course of a parallel machine gun in basic practice, and the teaching aid can be used for simulating and practicing the setting of the battle through visual display. Students can more quickly and accurately understand the use method and principle of the drum wheel gauge ruler, and clear cognition can be established for the students.

The application discloses a muffler, a compressor and a refrigeration device, which comprises a shell, a connector and a gas guide pipe. The shell comprises a first shell and a second shell, the first shell is connected with the second shell, and an air suction muffling cavity is defined in the shell. The first shell is provided with a connector mounting hole extending from the outside of the shell to the air suction muffling cavity. The connector has a tubular structure, the tubular structure is inserted into the connector mounting hole from the outside of the shell, the tubular structure has a positioning part extending into the air suction muffling cavity, an inner end port is formed on the end face of the positioning part, and the positioning part is provided with a positioning hole. The gas guide pipe extends from a first port to a second port in the length direction, the gas guide pipe is mounted on at least one of the first shell and the second shell, the first port is butted with the inner end port, the gas guide pipe is provided with a latch, and the latch is inserted into the positioning hole to lock the positioning part on the gas guide pipe. The technical scheme of the application has the characteristics of few parts, simple structure and strong sealing performance.

This invention discloses a method for predicting urban flood disasters based on satellite infrared brightness temperature and precipitation data. The method includes: combining satellite infrared brightness temperature and precipitation data to identify relevant data of complete lifecycle MCSs (Multi-Category System Components); extracting and filtering CCS area evolution data; determining the optimal value of the sensitivity coefficient; fitting the relationship function between CCS area and time, determining the most vigorous development time as the center point, determining the slope critical threshold based on the sensitivity coefficient, and finding boundary points to divide the development, maturity, and dissipation stages; finally, integrating urban underlying surface characteristics and a waterlogging model to quantitatively predict the level of urban flood disasters and push emergency response measures, optimizing the prediction results and response plans through a dynamic feedback mechanism. This invention can accurately capture the essential characteristics of each stage of MCSs, and based on the capture results, achieve full-process automation from meteorological monitoring to flood prediction and emergency response.

This invention provides a method and system for real-time analysis of pilot control quality under wind shear conditions, relating to the field of aviation flight technology. First, it captures flight control and environmental interaction data, including flight status feedback data and pilot control execution data. Next, it establishes a set of response correlation links between control actions and environmental changes, using wind shear environmental changes as trigger nodes, pilot control execution as response nodes, and flight status feedback as correlation nodes. Then, it traces the temporal trajectory of control actions and their compatibility with environmental changes, outputting a set of temporal compatibility relationships. Based on the evolutionary analysis of the temporal compatibility relationship set, it analyzes the adaptive dynamic changes of control actions and outputs the adaptive dynamic change results. Finally, it generates control adjustment guidance based on the adaptive dynamic change results to assist pilots in optimizing control actions in real time, improving flight safety and control quality.

The invention provides a planetary reducer, a power assembly and an electric vehicle, and relates to the technical field of electric vehicles. The planetary reducer is in transmission connection with wheels of the electric vehicle through the first half shaft and the second half shaft. The planetary reducer comprises a first planet row, a second planet row, a first locking structure and a second locking structure. The first half shaft is used for receiving power transmitted by the first planet row, and the second half shaft is used for receiving power transmitted by the second planet row. The first planet row and the second planet row can make the first half shaft and the second half shaft rotate in a differential mode. The first locking structure is used for being fixedly connected with the first half shaft, and the second locking structure is used for being in transmission connection with the second half shaft. When the first locking structure and the second locking structure are coupled, the first locking structure and the second locking structure are used for being in transmission connection with the first half shaft and the second half shaft. By means of the first locking structure and the second locking structure, locking of the differential function of the planetary reducer can be achieved, and the risk that an electric vehicle cannot run on a bad road surface is reduced.

The utility model discloses rheumatism immunity physiotherapy equipment, which relates to the technical field of rheumatism immunity, and comprises a fixing device, the inner bottom wall of the fixing device is in threaded connection with a fixing and limiting assembly, the top of the fixing device is fixedly connected with a motor box, and the interior of the motor box is fixedly connected with a motor body. The output end of the motor body is in spline connection with a transmission rod, and the outer side face of the transmission rod is fixedly connected with a transmission assembly. Through the arrangement of the transmission assembly and the fixing assembly, the effect of flexible adjustment is achieved when a person operates the device, the transmission assembly converts rotation power of the motor into linear displacement of the sliding block, the physiotherapy device can select the corresponding position or the whole body for physiotherapy according to different conditions of a patient, conversion of different positions is achieved, and the physiotherapy effect is improved. Complex parts such as diseased joints and muscles are fully covered, the physical therapy effect is improved, precise and effective treatment is continuously provided, and the coping capacity of equipment to complex illness conditions is greatly improved.