556results about How to "Extended working hours" patented technology

The invention provides an unmanned aerial vehicle multi-target tracking method and system based on visual and millimeter-wave radar information fusion, and the method comprises the steps: obtaining an association result through employing a space-time consistency model, constructing a self-adaptive joint probability data association frame according to the association result, so as to obtain an initial target state estimation value, and carrying out the recognition of the initial target state estimation value. A prospective path planning algorithm is adopted to obtain an optimal observation angle flight path, a Bayesian network is utilized to obtain initial observation data, based on the initial observation data, an optimal target state estimation value is generated, a distributed cooperative sensing mechanism is used to generate an initial tracking task allocation scheme, and an intelligent resource allocation strategy is implemented. Generating an initial resource allocation scheme, starting a quick response protocol to obtain an optimal tracking task allocation scheme, and generating an optimal resource allocation scheme based on the optimal tracking task allocation scheme; according to the technical scheme provided by the invention, the accuracy of target identification is improved, the environmental adaptability is enhanced, the tracking efficiency is improved, and the working time is prolonged.

The invention discloses dust removal equipment for a furniture production workshop, and relates to the technical field of dust removal equipment, the dust removal equipment comprises a dust removal assembly, an exhaust fan, a dust removal pipe and a main air pipe, the dust removal assembly comprises a dust removal box, a separation box, a discharge pipe, a material receiving box, a dust separation assembly and a backflushing assembly, the dust separation assembly is used for filtering dust, and the backflushing assembly comprises an oscillation assembly. The dust removal assembly is used for removing dust outside the dust separation assembly. The invention further discloses a dust removal method of the dust removal equipment for the furniture production workshop. The dust removal method comprises the following steps of equipment installation, dust removal and equipment cleaning. Through the dust separation assembly and the backflushing assembly, the purpose of dredging blockage is achieved, the problem of low efficiency caused by blockage is solved, and through the arrangement of the oscillation assembly, the dredging effect is further improved, the working time of the dust removal cloth bag is prolonged, and the filtering efficiency is improved.

The invention relates to the technical field of power-assisted robots, in particular to a self-adaptive control lower limb hydraulic power-assisted exoskeleton robot system which comprises a waist supporting device, a leg supporting device, a foot supporting device, a hydraulic power-assisted assembly, an attitude sensor, a lower limb force sensor, a wearable electromyogram sensor, a step obtaining module and a data analysis module. The system can intelligently adjust the output power of the hydraulic power assisting assembly according to the motion posture of the exoskeleton, the pressure data of the foot supporting device and the wearing target muscle state so as to provide proper walking assisting power and bearing support, and the system can further conduct secondary adjustment and fatigue alarm by monitoring the pace frequency and the muscle fatigue degree in real time. The exoskeleton assisting power output power in the carrying process is gradually adjusted according to the comparison result between the weight of the wearing target and the weight of the to-be-moved object, so that assisting power provided by the exoskeleton robot is effectively matched with the weight of the to-be-moved object when the wearing target carries the object.

The invention relates to the technical field of satellite communication transmission, in particular to a data communication transmission method and system based on a Beidou satellite, equipment and a medium, and the method mainly comprises the steps: obtaining basic parameter data of a communication network, and obtaining the residual energy of the current Beidou satellite and the transmission demand of the current to-be-transmitted data; and establishing a transmission mode evaluation model, setting an evaluation value threshold, and selecting a first transmission mode or a second transmission mode to transmit the to-be-transmitted data, the energy consumption of the second transmission mode being lower than that of the first transmission mode, and the rate of the second transmission mode being lower than that of the first transmission mode. According to the method, the energy consumption is taken as a core consideration factor of communication switching, and a low-energy-consumption communication mode is preferentially selected under the condition that the energy of the equipment is insufficient, so that the working time of the equipment is prolonged. By analyzing the data transmission requirement, it is ensured that an appropriate bandwidth is selected when the data size is small, and bandwidth waste is avoided.

The invention discloses a three-dimensional reconstruction method based on an unmanned aerial vehicle and edge calculation, and relates to the field of unmanned aerial vehicle technology, edge calculation and three-dimensional scene reconstruction. The method comprises the following steps: an unmanned aerial vehicle carries a monocular camera to collect a standard-definition video stream from a target scene; the edge computing device receives and processes the standard-definition video stream in real time to generate preliminary low-precision three-dimensional reconstruction; the edge computing device identifies a defect area by analyzing a low-precision reconstruction result, and optimizes the flight path of the unmanned aerial vehicle; the unmanned aerial vehicle collects a high-definition video stream from the target scene according to the optimized path; and the edge computing device performs off-line high-precision three-dimensional reconstruction on the high-definition video stream so as to improve the accuracy and detail expression capability of a reconstructed scene. Through cooperative work of the unmanned aerial vehicle and the edge calculation end, real-time data processing, feedback and decision making in the collection process and high-precision three-dimensional reconstruction result storage in the off-line stage are achieved, and the real-time performance and accuracy of three-dimensional reconstruction are effectively improved.

The utility model discloses a moxibustion fumigation traditional Chinese medicine external treatment device which comprises a display control bin, a radio frequency induction bin and an independently-installed chip medicine cake box which are connected with one another. A radio frequency chip, a radio frequency coil and a temperature-resistant protective cover are installed in the radio frequency induction bin, a heat transfer through hole and a heater are arranged at the bin bottom, and an independent chip medicine cake box is installed at the lower end of the outer bottom. According to the device, information of the chip medicine cake box is read through a radio frequency chip and a coil of the radio frequency induction bin, and parameters such as optimal working time, working temperature and working wavelength of different traditional Chinese medicine external treatment medicines or non-medicine materials such as moxibustion or fumigation are matched; convenience, digitization, intelligentization, safety and standardization of moxibustion fumigation and other hundreds of traditional Chinese medicine external treatment methods can be achieved.

The invention discloses a method for establishing a kinetic model of an underwater operation robot, and relates to the field of underwater robotics.The method comprises the steps that firstly, a motion model of the underwater operation robot is established and simulated, a robot model is designed through a three-dimensional tool, and a terrain model of an underwater environment is established in combination with a geographic information system (GIS); meanwhile, an inertial coordinate system and a coordinate system of the robot are further defined according to the established model, the position and the posture of the robot in the space are analyzed, and the position and the posture of the robot in the space are obtained by analyzing and calculating the translational motion coefficient Py and the rotational motion coefficient Xz of the robot and then presetting a posture threshold value Z; and performing comparison evaluation on the attitude change coefficient Jq of the robot, and if the attitude of the robot is found to be abnormal, namely the attitude change coefficient Jq of the robot exceeds a preset attitude threshold value Z, further analyzing the influence of the underwater environment on the attitude of the robot, and performing real-time regulation and control on the power output of the robot according to the underwater environment.

The invention discloses an underwater robot self-adaptive control system and method based on data analysis, and relates to the technical field of automatic control. Environment data and underwater robot data in the operation process of an underwater robot are collected, an operation data set S is constructed, feature extraction is performed, and the operation data set S is obtained; the method comprises the following steps: acquiring an acceleration fluctuation coefficient # imgabs0 # and an attitude angular rate fluctuation coefficient # imgabs1 #, summarizing and calculating to obtain a stability score WD, evaluating the operation state of the underwater robot, predicting water flow data at a future time point t + k when the operation state of the underwater robot is abnormal, acquiring an underwater robot adjustment thrust # imgabs2 # in combination with a robot dynamic model, and using a genetic algorithm to calculate the operation state of the underwater robot. According to the method, the optimal thrust distribution scheme of the underwater robot is obtained, the underwater robot is controlled to execute the operation task, strong turbulence and water flow reversing can be effectively handled, the operation failure and damage risk of the underwater robot are reduced, and the operation stability and safety of the underwater robot are improved.

The invention discloses a water quality detection device for agricultural water, and relates to the technical field of agricultural water and soil engineering, the technical key point is that the device comprises a water quality detection assembly, a water pumping assembly and an energy supply assembly, and water samples at different depths can be collected through an electronic water pump for multilayer water quality analysis. The device is provided with a multi-parameter water quality detector, water quality parameters such as pH value, TDS value, heavy metal concentration and the like can be detected, and automatic water quality monitoring is achieved. The device is based on a single-chip microcomputer control system, water sample collection, detection, data processing and display are automatically completed, and the operation process is simplified. The device is powered by solar energy, has self-energy-supply capability and is suitable for outdoor use. The unique structural design of the device has the protection function of the protective cylinder, the conical top cover and the absorbent cotton, can effectively prevent the influence of external environments such as rainwater and dust on equipment, prolongs the service life of the equipment, and is very suitable for detecting the farmland irrigation water quality, monitoring the water quality of water sources such as lakes and rivers and ensuring the safety of irrigation water.

The invention discloses a self-adaptive high-energy laser module, a forcible entry device and a forcible entry method. The self-adaptive high-energy laser module comprises a shell, and a first power supply assembly, a first controller assembly, a power-adjustable laser assembly, a first photoelectric detection assembly, a second photoelectric detection assembly and a focal length adjusting assembly are arranged in the shell; according to the invention, operation conditions such as the distance and the material of the to-be-broken target object can be automatically detected, the distance between the breaking device and the target object can automatically adjust the focusing position of the high-energy laser beam, and the output high-energy laser power can be automatically adjusted according to the material attribute of the target object on the breaking operation site; according to the method and the system, diversified field requirements of the forcible entry operation are met, meanwhile, the preparation process is simplified, the procedure link of manually setting parameters in the forcible entry operation field is avoided, the error probability is reduced, the capability of dealing with emergencies is enhanced, and the forcible entry task is more effectively completed without excessively damaging a target or causing unnecessary risks.

The utility model belongs to the technical field of gear machining, and particularly relates to a gear chamfering device which comprises a supporting shell, a driving shaft and a hydraulic telescopic rod, the inner wall of the supporting shell is rotatably connected with a rotating column, the side wall of the rotating column is slidably connected with a plurality of supporting carrying plates, the inner walls of the supporting carrying plates are rotatably connected with connecting shafts, and the connecting shafts are connected with the hydraulic telescopic rod. The top end of the driving shaft is fixedly connected with a bevel gear, the bottom end of the connecting shaft is provided with a conical meshing tooth groove, and the output end of the hydraulic telescopic rod is rotationally connected with a rotary pressing disc; the connecting shaft located on the outer side of the supporting shell is in the non-working state, so that a worker or a mechanical arm can replace the connecting shaft in the non-working state, and when a next gear is chamfered, the next gear can reach a machining area to be chamfered only by controlling the rotating column to rotate; the actual working time of the cutting tool of the chamfering machine is prolonged, the working pause interval time is shortened, and therefore the machining efficiency of the chamfering machine is improved.

The invention discloses a reconfigurable metasurface reflective array based on MOS switch chip regulation and control and an implementation method of the reconfigurable metasurface reflective array. The metasurface reflective array comprises a feed source horn and a reconfigurable metasurface reflective array, the reconfigurable metasurface reflective array comprises a plurality of metasurface reflective array units which are periodically arranged; the metasurface reflective array unit sequentially comprises a top metal structure layer, a first dielectric substrate, a metal ground, a metal power supply layer, a second dielectric substrate and a bottom metal feed layer; and the top metal structure is loaded with an MOS switch chip. According to the invention, two states of 0 degree and 180 degrees of the phase of the metasurface reflective array unit are realized by controlling the on-off of the MOS switch chip, the state of each metasurface reflective array unit in the reflective array is controlled by the FPGA, beam scanning can be carried out at + / -45 degrees, and compared with a reflective array using a PIN tube as a tuning element, the design of a complex feed network is avoided, and the cost is reduced. The method has the advantages of high beam scanning speed and low power consumption.

This application belongs to the technical field of air compressor safety, and particularly relates to a safety operation method for a piston air compressor. A safety operation method for a piston air compressor includes the following steps: S1, a flexible baffle is provided on an air-cooled plate cooler connected to the piston air compressor; S2, temperature data of each cooling unit at the current moment is obtained, and at the same time, the temperature change trend and the opening area change trend of the air outlet end of each cooling unit are obtained; S3, according to the pressure dew point temperature of the air outlet end of each cooling unit at the current moment, the opening area of each cooling unit at the current moment is adjusted to change the coverage degree of the flexible baffle on the air-cooled flow channels of each cooling unit at the next moment, so that the temperature of the air outlet end of each cooling unit is always above the corresponding pressure dew point temperature. This application can尽量避免活塞式空压机在运行的过程中发生冰堵或油乳化,保证活塞式空压机的安全运行。 It should be noted that there is an unclear part in the original Chinese text "尽量避免活塞式空压机在运行的过程中发生冰堵或油乳化,保证活塞式空压机的安全运行。" which may need to be further clarified for a more accurate translation. The above translation is based on the best understanding of the current text.

The utility model discloses a high-capacity vehicle-mounted power battery for an AGV (Automatic Guided Vehicle) in the technical field of vehicle-mounted power batteries, which comprises a battery main body, a battery management system and a protection control component, according to the high-capacity vehicle-mounted power battery pack for the AGV, 32 KWh high-capacity lithium iron phosphate batteries are adopted, stable electric power can be continuously provided for the AGV, the working time of the AGV is greatly prolonged, the battery pack is of a compact double-layer battery box structure, the batteries are arranged in an upper layer and a lower layer, the space utilization rate of the batteries is greatly increased, and the battery pack is convenient to use. The limited internal space of the AGV body is utilized more fully, the battery pack is only provided with a set of unified electric connectors, simple plug-in connection of all components in the battery and connection with external equipment are achieved, the installation process of the battery is simplified, maintenance and replacement are more convenient and faster, and the service life of the battery pack is prolonged. The problems of short endurance mileage and low battery space utilization rate of the AGV can be effectively solved.

The invention discloses a bridge crack recognition and detection system and method based on an unmanned aerial vehicle. The detection system comprises an unmanned aerial vehicle, an unmanned aerial vehicle route design and route planning unit, an unmanned aerial vehicle safe flight unit, an image acquisition and processing unit, a crack recognition and analysis unit, and a crack information data output unit. When in use, the system can formulate reasonable flight routes for different bridge crack recognition and detection tasks and recognition and detection parts. At the same time, when flying in a sunny area, it can absorb solar energy and increase the working time of the unmanned aerial vehicle. The cracks in the image are recognized and detected by a convolutional neural network, and the width parameter information of the cracks can be calculated. The future development trend of the cracks can be predicted through microscopic observation. Finally, a 3D stereoscopic model view of the bridge is generated, which fully displays the position information and actual parameter information of the cracks, and the cracks are maintained and maintained in a targeted manner. The system has the characteristics of easy use, comprehensive detection and recognition, and high efficiency.

The present invention belongs to the field of well logging technology, and relates to a liquid-cooled phase-change heat management device with a replaceable heat storage module for a well logging instrument, which is used for the thermal management of the well logging instrument chip, and includes an insulation bottle I, an insulation bottle quick connector, a pipeline quick connector, a heat storage module shell, a phase change material, a liquid cooling module, and an insulation bottle II; the insulation bottle I and the insulation bottle II are connected by an insulation bottle quick connector; the heat storage module shell is filled with a phase change material; the liquid cooling module includes a water-cooled pipe heat absorption section, a circulation pump, and a water-cooled pipe heat release section; the water-cooled pipe heat absorption section is arranged in the insulation bottle I, and is used to take out the heat generated by the chip of the well logging instrument; the water-cooled pipe heat release section is arranged in the heat storage module shell to exchange heat with the phase change material; the water-cooled pipe heat absorption section and the water-cooled pipe heat release section are connected by a pipeline quick connector; the circulation pump is used to drive the liquid cooling medium to circulate in the water-cooled pipe heat absorption section and the water-cooled pipe heat release section. The present invention can simultaneously solve the problem of high-temperature thermal failure of the well logging instrument and the need to operate again in a short time after the operation is completed.

The invention discloses a charging device for preventing rail deviation and a charging method thereof.The charging device comprises a fixing structure, the fixing structure is arranged between two rail robots and comprises a main body and a clamping mechanism, the first end of the main body abuts against the bottom face of a movable guide rail, and a first magnetic attraction line is arranged at the second end of the main body; and the limiting structure is arranged on the rail robot around the rolling wheel and comprises a limiting block and a fixed guide column, the limiting block is arranged on the peripheral side of the rolling wheel, the fixed guide column is fixedly connected with the limiting block, a second magnetic attraction line corresponding to the first magnetic attraction line is arranged in the fixed guide column, and the rail robot is charged on the movable guide rail through the first magnetic attraction line and the second magnetic attraction line. By arranging the limiting structure, it is ensured that the rail robot does not deviate in the charging process, the production cost and complexity are reduced through the design of the clamping mechanism, and the efficient charging function is achieved through the magnetic attraction line.

The invention provides a greenhouse gas treatment device and method based on microwave plasma. The greenhouse gas treatment device comprises an electromagnetic wave input and transmission system, a microwave coupling cavity, a gas inlet system and a tail gas treatment system, the electromagnetic wave input and transmission system comprises two groups of microwave magnetrons and transmission waveguides, and the transmission waveguides are communicated with the microwave coupling cavity; the gas inlet system comprises an Ar input pipeline, an O2 input pipeline, an SF6 input pipeline and a three-layer gas inlet sleeve; an automatic ignition device is arranged on the side of the three-layer air inlet sleeve; the tail gas treatment system comprises a closed cavity, a waste gas conveying pipeline and a spraying device; the microwave coupling cavity not only can improve the ionization effect of SF6 and the utilization rate of microwave power through a power coupling mode, but also can improve the capacity of processing large-flow SF6; and the gas inlet device adopts a three-layer sleeve, so that the etching of ionized fluorine ions on the gas inlet pipe can be effectively reduced while the SF6 treatment flow is improved, and the continuous working time is prolonged.

The invention provides an underwater vehicle charging system and a charging method, and solves the problem that the loading capacity, the operation time and the operation flexibility of an underwater vehicle are affected as a heavy coupler needs to be carried at the vehicle end in the conventional underwater vehicle wireless charging system. According to the invention, the permanent magnet synchronous motor which must be carried by the underwater vehicle is used for energy supply, the battery of the underwater vehicle is directly charged through the electromotive force generated by the reverse rotation of the permanent magnet synchronous motor, and the situation that the load is increased by a coupler installed at the vehicle end in the conventional wireless charging process is avoided. The charging system comprises a charging device arranged underwater and a one-way clutch arranged between a transmission shaft of a permanent magnet synchronous motor of the underwater vehicle and a propeller. The charging device comprises a base platform, a mobile platform, a motor, a charging rod, a fixed electromagnet, a communication unit and a control unit. The motor converts electric energy obtained by the charging device into mechanical energy which is transmitted to the permanent magnet synchronous motor transmission shaft through the charging rod to drive the transmission shaft to rotate reversely.

The invention provides a vehicle-mounted unmanned aerial vehicle clustering automatic operation platform, and a multi-rotor unmanned aerial vehicle operation system comprises a selection mechanism used for moving a selected unmanned aerial vehicle from a collection area to a take-off and landing area, and / or moving the unmanned aerial vehicle landing in the take-off and landing area to the collection area; and the pulling and lifting homing mechanism operation units are arranged in the take-off and landing areas and used for adjusting the poses of the unmanned aerial vehicles relative to the vehicle platform, the number of the pulling and lifting homing mechanism operation units is not less than one, and not less than one unmanned aerial vehicles collected in the same collection area utilize the same pulling and lifting homing mechanism operation unit. The method has the beneficial effects that the unmanned aerial vehicle operation unit comprises a homing platform responsible for homing operation of the unmanned aerial vehicle and a fixed platform responsible for collection and storage of the unmanned aerial vehicle, the unmanned aerial vehicle achieves cross-platform movement through matched mechanisms and control, the number of two sets of homing platforms can be reduced through the method, and then the problems of the size, weight, space and the like of the platforms are solved.

The present invention proposes a compound water garbage collection device, which includes a storage part, a collection part and a driving part arranged in sequence from top to bottom, a storage cylinder is arranged at the top of the storage part, a drainage port is arranged at the bottom of the storage cylinder, a truncated cone-shaped high-position hoop is arranged inside the storage cylinder, the collection part includes a collection cylinder, a shell, a water inlet and an empty silo, the upper part of the shell is connected to the storage cylinder, the lower part is connected to the empty silo, the side wall of the shell is provided with a water inlet, the collection cylinder is arranged inside the shell, the collection cylinder is formed by merging a plurality of cylinder leaves, the driving part includes a hydraulic rod, a waterproof motor and a base, the collection cylinder is connected to the waterproof motor through the hydraulic rod, the hydraulic rod runs through the entire empty silo, and the base is fixedly connected to the waterproof motor. The present invention creates a water level difference through the hydraulic rod and the collection cylinder, sucks the floating garbage on the water into the collection device for centralized collection, and at the same time, by utilizing the working characteristics of the hydraulic rod, the entire garbage collection process can be repeated, and the collection of water garbage can be continuously performed.

The invention relates to the technical field of sewage treatment equipment, and particularly discloses graded sewage treatment equipment for ecological restoration of a water area, the graded sewage treatment equipment comprises an outer frame body, the outer frame body is tubular, the outer surface of the top of the outer frame body is fixedly connected with a mounting frame, and the top of the mounting frame is arranged above the outer frame body. In the filtering process, a motor is started to drive a rotating rod to rotate, and meanwhile, a rotating ring is driven to rotate through a connecting frame, so that a poke rod on the rotating rod rotates along with the rotating rod, and sewage preliminarily entering a filtering frame is poked; untreated sewage containing a large amount of impurities is prevented from precipitating in the filtering frame to block the filtering frame and reduce the filtering effect, meanwhile, when a motor is started, a filtering plate can be driven to move on the upper surface of a filtering ring, a cavity between the filtering frame and the outer frame body is stirred through the filtering plate, the impurities passing through the filtering frame are prevented from blocking the filtering ring, and the filtering effect is improved. The filtering effect is further improved, and the filtering fluency is improved.

The invention belongs to the technical field of underwater robots, and particularly relates to a micro optical fiber active compensation device for an autonomous remote control underwater robot. Comprising a box body and a control box, a fiber winding assembly, a damping assembly and a tension detection assembly which are arranged in the box body, the fiber winding assembly is used for winding a micro optical fiber, the micro optical fiber penetrates out of the box body after sequentially passing through the damping assembly and the tension detection assembly, and the damping assembly is used for providing damping for the micro optical fiber. The tension detection assembly is used for detecting the tension of the micro optical fiber and outputting tension information, the control box receives the tension information output by the tension detection assembly and outputs a control instruction to the fiber winding assembly and the damping assembly according to the tension information, and the fiber winding assembly performs actions of winding and unwinding the micro optical fiber according to the control instruction. The damping assembly changes damping according to the control instruction for tension compensation. According to the invention, real-time active compensation and tension control of the optical fiber in water are realized, optical fiber consumption can be saved, and intelligence of an optical fiber management system is enhanced.

The invention provides an unmanned logistics vehicle with a gull-wing-door carriage, and belongs to the technical field of logistics vehicles, the unmanned logistics vehicle comprises a chassis assembly, the chassis assembly comprises an aluminum alloy frame assembly, wheel-by-wire steering systems are arranged at the two ends of the aluminum alloy frame assembly, wheel assemblies are connected to the two sides of each wheel-by-wire steering system through four-wheel distributed driving systems, and the wheel assemblies are connected to the gull-wing-door carriage. The vehicle can be operated through four-wheel steering, flexible steering can be achieved with the extremely small turning radius, and the traffic capacity under a narrow channel is improved; a carriage assembly is arranged at the top of the aluminum alloy frame assembly and comprises a carriage main body structure, the carriage main body structure is arranged at the top of the aluminum alloy frame assembly, a gull-wing door assembly is arranged at the top of the carriage main body structure and comprises four groups of gull-wing door assemblies capable of being opened and closed, and a carriage top is connected to the top of the carriage main body structure. Two groups of gull-wing door assemblies are rotatably arranged on two sides of the carriage top, so that a spacious space is created for loading and unloading goods, and the goods are convenient to load and unload.

The invention discloses a miniaturized optical fiber strapdown inertial navigation system based on a three-axis integrated vibrating beam accelerometer, which comprises an inertial measurement unit and an outer cover assembly, the inertial measurement unit is arranged in the outer cover assembly, and the inertial measurement unit is at least used for completing measurement and navigation calculation of inertial motion parameters of a carrier. The outer cover assembly is at least used for avoiding the influence of the external environment on the inertial measurement unit and ensuring the normal work of the inertial measurement unit. According to the optical fiber strapdown inertial navigation system provided by the invention, on the premise of not high requirements on horizontal attitude and autonomous positioning precision, indexes such as equipment volume, weight and power consumption are further reduced by replacing a small-volume accelerometer and optimizing the structural size, so that the burden of carriers such as airplanes and unmanned aerial vehicles can be reduced, and the operation efficiency and maneuverability of the carriers can be improved; and the platform can be applied to some small or micro aircrafts and ground machines with limited space, and the application friendliness and the user experience of the platform are enhanced.

The invention relates to the technical field of tobacco harvesting, and provides a small portal frame crawler-type tobacco harvesting and transferring platform which comprises a portal frame, crawler chassis, a picking mechanism, a control system and a power system, and the crawler chassis is arranged at the bottoms of the left side and the right side of the portal frame; the picking mechanism comprises a manual picking device and a tobacco leaf collecting device, the manual picking device comprises a picking seat, the picking seat is arranged on the portal frame, the tobacco leaf collecting device comprises a tobacco leaf collecting and releasing device and a tobacco bundle collecting and releasing device which are connected to the portal frame, and the control system controls the power system to drive the crawler chassis. The device has the advantages that tobacco growers can sit on the picking seat for harvesting, labor intensity is reduced, tobacco leaves can be temporarily stored in the tobacco leaf collecting and placing device after being collected, operation is convenient, due to the small size, the device can work in a complex field environment, the tobacco leaves are picked in a machine-assisted and manual picking mode, and the labor intensity is lowered. The labor intensity of tobacco growers is relieved, and meanwhile the problem that the tobacco leaf breakage rate of an existing tobacco leaf harvesting machine is high is solved.

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a cleaning unmanned aerial vehicle and a cleaning device.The cleaning unmanned aerial vehicle comprises a vehicle body, a plurality of propellers are arranged on the vehicle body, one propeller is arranged at the front end of the vehicle body, an underframe is arranged at the bottom of the vehicle body, a storage battery is installed on the vehicle body, and a spraying mechanism is arranged below the vehicle body; the spraying mechanism is provided with a water inlet connector and a water outlet connector, an anti-collision mechanism is installed at the front end of the machine body and located in front of a propeller at the front end of the machine body, an operated object can be effectively prevented from colliding with the propeller through the anti-collision mechanism, and the operated object is effectively and continuously cleaned through the spraying device; water can be continuously supplied, the operation time is longer due to the fact that a water tank is not carried, a water spraying pipe can be quickly replaced through a quick-release head on the spraying mechanism, and therefore the cleaning device can quickly adapt to cleaning work of different objects and is convenient to use.

The utility model discloses a polishing belt sander, and relates to the technical field of polishing belt sanders. The polishing device comprises a workbench, a side plate is arranged on the rear side of the top of the workbench, a polishing machine is arranged on the front side of the side plate, a belt is arranged in the polishing machine, an upper movable block and a lower movable block which are symmetrical are arranged in the belt, and a threaded hole and a through hole are formed in the left side and the right side of the interior of each movable block respectively. And a loosening assembly with a lifting function is arranged in the side plate. The loosening assembly drives the movable block to move upwards and downwards respectively till the upper end enables the belt to be located in the containing groove, the belt loses tension through stretching of the movable block, and then the belt can be taken out and replaced with a new belt. The problems that a grinding wheel or a driving motor needs to be detached from the machining position of a machine tool for replacement of a belt, the working time is prolonged, and the production efficiency is reduced are solved, a cleaning assembly is driven to clean dust on the top of a transmission mechanism, and the dust is prevented from falling into the belt.

The present invention relates to the field of battery balancing protection technology, and in particular to a balancing protection method and system for multiple series-connected battery cells. The method comprises the following steps: collecting multi-node battery operation status data of multiple series-connected battery cells and performing series gradient influence analysis to obtain internal resistance change series gradient influence data; calculating performance attenuation gradient based on internal resistance change series gradient influence data to obtain thermal damage performance attenuation gradient data; formulating a series-connected battery cell balancing intervention strategy based on the thermal damage performance attenuation gradient data to obtain a battery cell balancing intervention strategy; performing automated firmware design based on the battery cell balancing intervention strategy to obtain a balancing intervention strategy firmware; and embedding the balancing intervention strategy firmware into a battery cell management system to perform battery cell balancing protection. The present invention makes the battery balancing protection technology more perfect by optimizing the battery balancing protection technology.

The invention discloses an energy-saving and environment-friendly chemical waste gas treatment method. A main body unit comprises a spraying tank, a solution device is arranged on one side of the spraying tank, a water pipe is arranged on the upper side of the solution device, an exhaust pipe is installed at the upper end of the spraying tank, a demister is installed at the other end of the exhaust pipe, and two sets of spraying pipes are arranged in the spraying tank. A motor drives a first rotating shaft to rotate, a first bevel gear fixedly connected with the first rotating shaft drives a second bevel gear and a third bevel gear which are meshed to rotate, and a second rotating shaft fixedly connected with the second bevel gear drives a connecting rod and a material overturning rod to rotate; the bottom of the inner wall of the filler basin body is subjected to dirt scraping treatment while the filler in the filler basin body is turned over, so that not only can dead angles among the filler be eliminated, but also filter holes in the bottom of the filler basin body can be prevented from being blocked, and meanwhile, a third rotating shaft fixedly connected with a third bevel gear drives the filler basin body to rotate reversely; and the bottom of the filler basin body is cleaned while the supporting plate supports the filler basin body.