251results about How to "Reduce personal injury" patented technology

The invention relates to a test method of an L3-level autopilot system of vehicle-in-loop based on a virtual driving scene. The method comprises the following steps of observing a kinematic state of avehicle, wherein the kinematic state comprises a position and a course angle, and is used for updating a vehicle pose in the virtual scene; establishing a sensory system model, wherein the sensory system model comprises four perception equipment models of vision, a millimeter wave radar, a laser radar and an ultrasonic radar; injecting virtual test scene libraries, and predefining three types oftest scene libraries including system driving scene working conditions, emergency working conditions and human-computer interaction working conditions according to an application scene of the L3-levelautopilot system; rendering in the virtual scene according to a pilot position parameter to generate a scene visualization visual angle; and recording and evaluating test data, including algorithm performance quantitative evaluation indexes and system evaluation indexes, and finally outputting comprehensive summary evaluation indexes of the L3-level autopilot system. Through the test method disclosed by the invention, the typical application scene of the L3-level autopilot system can be tested and evaluated in a limited experimental site.

The invention discloses a method for controlling a dump cart for multiple groups of stock bins. According to the method, limiting switches are installed at the two sides of a cart track respectively for safety protection, and an encoder is installed on a cart driven wheel to record the cart traveling path; on the traveling path of the cart, a cart position verifying device is installed in the front of each group of stock bins for position verification, a bin position indicating device is installed on a feed inlet of each stock bin, and a set of limiting switch and position indicator lights is installed on each of the two sides of the feed inlet of each stock bin; a system automatically confirms whether a discharge outlet of the cart is accurately positioned at the feed inlet of each stock bin, and whether the discharge outlet of the cart is aligned with the feed inlet of each stock bin is monitored through a video monitoring device installed on the cart, so that it is ensured that the cart is right in place and whether a stock bin is full and whether materials are spilled out during feeding are found in time; when the cart is not positioned correctly, the manual fine adjustment mode can be adopted to enable the cart to be quickly adjusted to be in place, so that it is ensured that the cart reaches the corresponding stock bin quickly and accurately, the working intensity of operation staff is relieved, and meanwhile, production efficiency and production safety are improved.

The invention discloses a movable paint spraying machine. The movable paint spraying machine comprises a movable frame, a swinging and rotating unit, a spray gun, a travelling driver, a swinging and rotating driver and a control system. The swinging and rotating unit is connected to the movable frame rotationally. The spray gun is hinged to the swinging and rotating unit. The travelling driver is used for driving the movable frame to move. The swinging and rotating driver is used for controlling the swinging and rotating unit to swing and rotate. The control system is connected with the travelling driver and the swinging and rotating driver electrically to control movement of the movable frame and the swinging and rotating unit. The movable paint spraying machine has the advantages that the movable paint spraying machine has multi-angle multi-direction moving and swinging functions and can spray paint automatically, so that manual work is avoided, and personal injuries are reduced; the spraying speed is high, and paint is smooth and fine in hand feel; the paint is sprayed out in the form of mist, so that the paint can be well sprayed to corners and gaps, and final effect of paint films is good.

The invention relates to a coal coking automatic sample preparation system which comprises a sample-preparation working station, an automatic delivery unit, a discharging unit and a controlling unit, wherein the sample-preparation working station, the automatic delivery unit and the discharging unit are interlocked in sequence under the controlling action of the controlling unit, automatic feeding, crushing, shrinkage, canning, automatic delivery, sample sealing, information identification code spraying and rejected sample collection are performed to the raw material ore; and the controlling unit takes a PLC control system as a core part and comprises a data acquisition device, a system controller, an operating panel, a labelling machine controller, a jet printer controller, a packaging machine controller and a computer monitoring system, and the PLC control system is communicated with the seven parts through a filed bus. The invention has the advantages that the automatic feeding, the crushing, the shrinkage, the canning, the sample sealing, the information identification code spraying and the rejected sample collection automatization are finished for the raw material ore.

The invention provides a transformer substation environment monitoring system. The transformer substation environment monitoring system comprises a controller, an SF6 gas transmitter, an oxygen transmitter, a draught fan and an alarm, wherein a preset SF6 gas concentration value and a preset oxygen concentration value are stored in the controller in advance. The controller obtains a current SF6 gas concentration value detected by the SF6 gas transmitter in real time and compares the current SF6 gas concentration value with the preset SF6 gas concentration value, and when the current SF6 gas concentration value is higher than the preset SF6 gas concentration value, the controller starts the draught fan to conduct air exhausting and ventilation and controls the alarm to give an alarm at the same time. In the same way, the controller obtains a current oxygen concentration value detected by the oxygen transmitter in real time and compares the current oxygen concentration value with the preset oxygen concentration value, and when the current oxygen concentration value is lower than the preset oxygen concentration value, the controller starts the draught fan to conduct air exhausting and ventilation and controls the alarm to give an alarm at the same time. According to the transformer substation environment monitoring system, leakage of SF6 gas can be timely discovered, and therefore the personal safety can be ensured.

The invention discloses an automatic paster robot for weld radiographic inspection, which comprises a rack, a rack travelling mechanism carrying the rack to move, a real-time detection system located at the upper part of the rack, and a lead box used for storing a film. The automatic paster robot has the advantages that the labor intensity of paster inspection is reduced; the working efficiency is improved effectively; the operation is remote; personal injuries of radiation to operating personnel are reduced; and the automatic paster robot is low in manufacturing cost, easy to process and manufacture, simple and convenient to control, and high in accuracy, is applied to practical production, and can improve economic benefits of the radiographic inspection greatly.

The invention provides an elevator multimedia visualized rescue system and method based on the internet of things. The system comprises multimedia equipment arranged in an elevator car, and a rescue cloud platform arranged in the cloud; the multimedia equipment is used for sending distress information to the rescue cloud platform through the internet of things when an elevator distress signal is triggered, receiving rescue progress information sent by the rescue cloud platform, and displaying the rescue progress information in real time; and the rescue cloud platform is used for receiving thedistress information, initiating the rescue task according to the distress information, and transmitting the rescue progress information to the multimedia equipment in real time. According to the elevator multimedia visualized rescue system and method based on the internet of things, the distress process when an elevator breaks down can be simplified, accurate transmitting of the distress information is ensured, the personal safety of trapped persons is guaranteed, and the rescue efficiency is improved.

The invention relates to the technical field of power system distribution network single-phase ground fault detection, in particular to a distribution network line homonymous phase two-point successive ground fault line selection method. The distribution network line homonymous phase two-point successive ground fault line selection method comprises the specific steps of (1) real-time data acquisition, (2) fault starting discrimination, (3) characteristic component extraction, (4) characteristic component analytical processing, (5) single-point grounding discrimination, and (6) two-point grounding discrimination. After fault starting, zero-sequence current characteristic components of each line are extracted and analyzed, the characteristic component amplitude values are sorted by magnitude, and phase relations between the characteristic components of the lines at characteristic frequency are compared to find a grounding line. The distribution network line homonymous phase two-point successive ground fault line selection method effectively solves the distribution network line homonymous phase two-point ground fault line selection difficulty, is conductive to improving operation efficiency, reduces the power failure range, ensures the safe operation of the distribution network system and reduces personal injury and death.

The invention discloses a pair of medical needle-holding forceps, comprising a forceps handle, support rods, a forceps head, a driving part and a control part, wherein the support rods comprise a front support rod and a rear support rod; the rear end of the front support rod is hinged to the front end of the rear support rod; the forceps head is connected to the front end of the front support rodthrough a rotational moving seat; the driving part is supported and positioned by the support rod; the rear end of the driving part is hinged to the forceps handle; and the control part is used for controlling the torque transmitting direction on the driving part and further realizing the swing control over the front support rod, the rotating control over the moving seat and the clamping control over the forceps head. According to the medical needle-holding forceps disclosed by the invention, the conversion of the clamping angle and the azimuth of a suture needle can be realized by using the rotation of the support rods and the forceps head of the medical needle-holding forceps; driving torque is respectively provided by clamping and kneading the forceps handle; the medical needle-holdingforceps have a reasonable structure, is convenient to use and suitable for suturing wounds at various positions and trends as well as the wounds positioned at the deep parts of human body and facilitates the improvement on the suture quality of the wounds.

The invention relates to the technical field of an elevator and particularly relates to a detecting device for a water level of an elevator pit and a detection processing method thereof. The detecting device for the water level of the elevator pit comprises a lowest water level detecting sensor, a warning water level detecting sensor and a highest water level detecting sensor which are sequentially arranged on the elevator pit from low to high, wherein the lowest water level detecting sensor, the warning water level detecting sensor and the highest water level detecting sensor are electrically connected to an elevator master control plate; the elevator master control plate is electrically connected to a water pump which is arranged on the elevator pit; and the water level of the elevator pit can be subjected to three sets of water level detection and treatment, thereby being capable of efficiently reducing the damage and corrosion of escalator equipment and reducing the harm to the bodies of passengers.

The invention relates to a building fire alerting training system. The building fire altering training system is connected with a PC for a student through a network and comprises a building fire altering subsystem, a building model show stand and a building fire sprinkler subsystem. The building fire altering subsystem comprises a main fire altering operation table and a fire altering experiment table. The main fire altering operation table comprises a programmable calculation controller and a PC for a teacher. The PC for the teacher is connected with the PC for the student through the network and connected with the programmable calculation controller through an RS232 interface. The programmable calculation controller is respectively connected with the fire altering experiment table, the building model show stand and the building fire sprinkler subsystem through power source buses and signal buses. Compared with the prior art, the building fire alerting training system has the advantages of being capable of achieving networked teaching, intelligent and the like.

The invention discloses a smart classroom system, which comprises a background management terminal, an Ethernet switch, a firewall, a branch control center and classroom all-in-one machines, wherein the background management terminal is connected with the Ethernet switch, the Ethernet switch is connected with the firewall, the firewall is connected with the branch control center through the Internet, each classroom all-in-one machine is arranged in a mode of being integrated with the corresponding smart classroom, the Ethernet switch is connected with classroom all-in-one machines, and each smart classroom comprises a camera, a wireless microphone, an interrogator-responder, a card reader, a classroom display screen and a control module which are connected with the corresponding classroomall-in-one machine; the branch control center comprises an information processing and control unit and a 110 alarm center, a 120 emergency center and a 119 fire control center which are connected withthe information processing and control unit, and the 110 alarm center, the 120 emergency center and the 119 fire control center all comprise a liquid crystal display screen and an early warning module which are connected with the information processing and control unit.

The invention discloses a safety interlock control system and a control method for a fixed bed anthraquinone process hydrogen peroxide device. Temperature measurement instruments are arranged in an oxidation tower and an extraction tower; the temperature and the temperature rising rates of the oxidation tower and the extraction tower are set into interlock values; automatic opening and closing of a valve under an abnormal working condition are achieved; and hazardous materials are rapidly withdrawn to an accident tank or an accident pond. Through the safety interlock control system, the hydrogen peroxide production process is controlled; safe production of the device is ensured; and a firing explosion accident is avoided.

The invention provides a device for monitoring whether a pilot has a flight illusion or not by combining a functional near infrared reflectance spectroscopic imaging device with a gyroscope, judging the type of the flight illusion and enabling a vestibular electrical stimulation device to send a corresponding stimulation sequence to resist the flight illusion in case of a certain flight illusion. The device comprises the functional near infrared reflectance spectroscopic imaging device for acquiring a blood oxygen concentration signal of the cerebral cortex of the pilot in a flying process, identifying the feature of the blood oxygen signal, and judging whether the flight illusion occurs, the gyroscope for detecting the motion condition of the head of the pilot, the vestibular electrical stimulation device for applying vestibular electrical stimulation and changing an input signal of the semicircular canal of the vestibular organ of a human body to resist the flight illusion, and a control computer for controlling a stimulation mode, a stimulation current mode, stimulation current intensity and stimulation time of the vestibular electrical stimulation device, and displaying relevant parameters in real time. The device provided by the invention can monitor the space cognitive state of a person in the flying process, and can apply the vestibular electrical stimulation in time in case of the flight illusion, so as to resist space disorientation.

The invention discloses a device for acquiring field data of various kinds of harmful gas. The device comprises a sensor group, a data acquisition module, a multi-channel sensor interface, a data storage unit, a data analysis processing module, a voice alarm prompt unit, a display unit, a parameter setting unit and a data communication interface, wherein an alarm threshold value under the condition that various kinds of harmful gas exist separately, a plurality of danger levels under the condition that various kinds of harmful gas exist simultaneously, and a harmful gas parameter comparison table which corresponds to each danger level are stored in the data storage unit; the data analysis processing module analyzes monitoring information; and the display unit synchronously displays the data which is acquired by the sensor group and the danger level of a monitored area environment at each moment. The device is simple in structure, reasonable in design and easy to use and operate, has full functions, a good monitoring effect and wide application range, can detect whether a kind of harmful gas exceeds the standard, and can analyze, judge and synchronously display the danger level of environment quality under the condition that various kinds of harmful gas exist simultaneously.

The invention discloses a diagnostic method and device for fuel leakage and a fuel tank system. The diagnostic method and device are used for detecting whether fuel leakage occurs to the fuel tank system or not. The fuel tank system comprises a fuel tank and a sensing part. The fuel tank system is sequentially connected with a mechanical part and an air filtrator through pipelines. The method comprises the steps that information, detected by the sensing part, of the temperatures of the fuel tank and the environment is received, and when the temperature difference value between the temperature of the fuel tank and the temperature of the environment is within a preset temperature difference value range, a control signal is sent to the mechanical part to disconnect the mechanical part and the air filtrator, so that the fuel tank system forms a sealed cavity; and within the preset time, the variable quantities of the temperature and the pressure of the fuel tank in the sealed cavity are measured and are compared with the target variable quantities of the temperature and the pressure, and when the compared results are different, the condition that fuel leakage occurs to the fuel tank system is determined. According to the diagnostic method and device for fuel leakage and the fuel tank system, the problem that whether fuel leakage occurs to the fuel tank or not cannot be detected through an existing method and device is solved.

The invention discloses a slow-down euphroe. A load-bearing rope passes through a fixed pulley and one end of a rope clamp to be connected with a rope fall. A connecting rod is connected with the rope fall. A rope tightening rod is articulated with the rope fall, the end part of the rope tightening rod is articulated with the rope clamp, and a cam is arranged on the end part of the rope tightening rod. Due to the rope tightening rod, the braking of the load-bearing rope is realized by a dead point of the cam at the end part of the rope tightening rod. The cam on the end part of the rope tightening rod is positioned on the dead point by the rope fall under the influence of gravity in an un-operating state, thus the rope tightening rod can be slowed down by uplifting the rope tightening rod, and the safety coefficient is high. The operation of rope tightening rod utilizes the leverage theory so that the operation saves labor. The load-bearing rope is fixed in the high place through the fixed pulley and is convenient to use and is very practical in a place where a rapid withdrawal is required. The bending points of the load-bearing rope in the rope clamp are few, thus the alternating stress can be reduced, and the load-bearing rope will not be easily broken. A damping wheel is arranged in the rope clamp to make the process of slowing down be smoother.

The invention discloses a saturation open cabin operation method and saturation open cabin operation equipment under shielding pneumatic conditions. According to the technical scheme, the saturation open cabin operation method and the saturation open cabin operation equipment have the advantages that the highest born pressure can reach 20bar, decompression can be omitted during operation in each shift, the influence of low efficiency due to decompression in an operation method implemented by means of filling compressed air in cabins in the prior art can be eliminated, and the tool changing efficiency can be greatly improved; operators do not need to be repeatedly decompressed, and accordingly personal injury to the workers can be greatly relieved.

The invention discloses a chemical corn double haploid young embryo processing method. After a haploid is selected to induce pollination of a system for 28 days or so, a haploid kernel young embryo is selected, the selected young embryo is placed in amiprophos-methl to be processed for 2 hours, and processing concentration of propyzamide is under 60 micrometer moles per liter. According to the technology, chemical doubling of the haploid is carried out in early phase, the chemical processing time is shortened, the processing concentration is reduced, consumption of chemicals is reduced, personal injury suffered by processing staff is small, and above all, doubling efficiency of the haploid is improved.

The invention discloses a UAV (Unmanned Aerial Vehicle) search system. The system comprising a UAV and a ground base station for controlling a flight control system, wherein the flight control systemis integrated on the UAV; a metal detector, a sound sensor, an odor sensor, an infrared sensor, an image sensor, a laser radar and a GPS (Global Positioning System) are arranged on the UAV and are allconnected to a central processor; and the central processor is connected to the flight control system. A UAV search method comprises: water rescue, mountain rescue, field rescue, criminal search andspecies quantity statistics. The system disclosed by the invention has the beneficial effects that a multi-sensor information fusion UAV search and rescue platform is designed, which is of great significance for quickly and accurately discovering missing living bodies, timely rescuing, guaranteeing the life of the missing living bodies to the maximum limit, chasing fugitives and counting the number of species.

An embodiment of the invention discloses a picture identification-based GIS switch fault automatic identification system which is used for solving the following technical problem: currently X ray detection is adopted by a large quantity of totally-enclosed electric power devices in China; normally, X ray picture quality is evaluated via manpower; when detection results are evaluated via manpower, evaluation workers are burdened with a large workload, eyes can be easily damaged by strong light, rays used in the past are not used for detecting photographs, low efficiency and low intelligentization are caused, defect analysis is affected by technical quality and experience of the evaluation workers and external conditions, and therefore defect analysis results often vary from person to person.

The invention belongs to the field of agricultural plant protection machinery, in particular to a method for automatically adjusting the flow rate of a sprinkler of a profiling variable spraying system of a spraying machine. The invention aims to provide a method for automatically adjusting the flow rate of the sprinkler of the profiling variable spraying system of the spraying machine. PWM control signals are adopted to adjust the flow rate of the sprinkler and the air flow of a fan which is used for assisting transportation of sprayed droplets, the flow rate of the sprinkler and the air flowof the fan are set according to the type of a tree crown, and a spray bar can be adjusted according to the growth trend of the crown so as to achieve profiling spraying, so that the utilization rateof pesticide is improved effectively, the uniformity of deposition of a chemical liquid on a canopy is improved, and environmental pollution and personal injury which are caused by the drifting pesticide are reduced in the spraying process. The method has the characteristics of good applicability, high working efficiency, fast response to a control system and precise application of pesticide, andpromotion of pesticide-saving technologies is facilitated.

The invention discloses a photographing robot. The photographing robot comprises a robot body, a base, a pair of front wheels, a pair of rear drive wheels, a power device, a preview screen, an imaging screen, a remote control transmitter, a mechanical component, a camera, a receiving amplifying antenna and a remote controller, wherein the base is arranged at the bottom of the robot body; the front wheels and the rear drive wheels are respectively arranged at the bottom end of the base by virtue of wheel shafts; one end of the preview screen is arranged on one side of the middle part of the robot body by virtue of a rotating shaft; the imaging screen is connected to the other end of the preview screen; the preview screen and the imaging screen rotate synchronously by virtue of the rotating shaft; the remote control transmitter is arranged behind the upper part of the robot body; the camera is arranged at the front end of the upper part of the robot body by virtue of the mechanical component and rotates by virtue of the mechanical component; the receiving amplifying antenna is arranged at the top end of the robot body; a touch photograph button and a plurality of control buttons are respectively arranged on the two sides of the remote controller; the remote controller is wirelessly connected with the remote control transmitter by the receiving amplifying antenna. The photographing robot disclosed by the invention reduces the occurrence of occupational diseases in the photographing industry and occupational diseases of security personnel and can be used for replacing a person for shopping in supermarkets.

The invention provides a butterfly-shaped anti-depositing member, which comprises a diversion trench obliquely arranged in a container and a pair of wing plates, wherein the lower end opening of the obliquely arranged diversion trench is communicated with a liquid discharging opening of the container; the pair of the wing plates is 'V'-shaped and is located at two sides of the diversion trench tobe connected with a trench opening so as to form an internally-connected butterfly-shaped member; and the outer edge of the butterfly-shaped member is connected with the inner wall of the container. The butterfly-shaped anti-depositing member provided by the invention is particularly applicable to materials with higher solid content in smoke wet desulphurization equipment, a chemical reaction tower, a storage tank, a trench and the like; particularly, in equipment of a slurry material, a solid-phase material or slurry is discharged out of a tower in time, thereby depositing the materials in the container can be avoided and the problems of depositing and blocking the container can be solved.

The invention provides an apparatus, a method and a piece of equipment for controlling forced landing. The method for controlling forced landing comprises the following steps: obtaining a signal for indicating power loss or partial power loss of an unmanned aerial vehicle; when the signal for indicating power loss or partial power loss of an unmanned aerial vehicle is obtained, separation of a load which is mounted on the unmanned aerial vehicle and the unmanned aerial vehicle is controlled according to a preset strategy, so that the load and the unmanned aerial vehicle are separately landed in forced landing. According to the mode, during forced landing, the weight at the side of the unmanned aerial vehicle is reduced, in order to increase success rate of forced landing of the unmanned aerial vehicle, and on the other hand, damage on the load due to spinning of the unmanned aerial vehicle is prevented, winding of parachute cords of a parachute due to propeller of the unmanned aerial vehicle is prevented, and the load can be effectively protected.

The invention provides an automobile water falling self rescue device and an automobile with the automobile water falling self rescue device. The automobile water falling self rescue device comprises an engaging sleeve, a shifting fork assembly, a driving wheel, a driven wheel, a bottom plate, a fixing seat, a high-pressure gas supply mechanism, a sealing pipe, a chain ball and a ball collector, wherein the engaging sleeve is arranged outside the driven wheel in a sheathing manner, the shifting fork assembly is of a lever structure, a fulcrum hinging seat of the shifting fork assembly is fixedly arranged on the bottom plate, one end of a driving arm of the shifting fork assembly penetrates into an inner cavity of the sealing pipe, a driven arm of the shifting fork assembly is matched and assembled with the engaging sleeve, the driving wheel is arranged on the bottom plate, the driven wheel is fixedly arranged on a glass lifer driving shaft, the bottom plate is arranged on the fixing seat, the high-pressure gas supply mechanism is assembled on the fixing seat, a gas outlet of the high-pressure gas supply mechanism is connected with the sealing pipe, and the chain ball is accommodated in the sealing pipe. The automobile water falling self rescue device has the advantage that passengers in the automobile can be enabled to fast open the automobile window glass to escape from an automobile compartment to successfully realize the self rescue under the conditions that the automobile falls into the water and the power of a storage battery is cut off.

The invention discloses a magnetite concentrate quality-improving and impurity-reducing technology and device. The technology comprises the following specific steps that firstly, a vertical spiral stirring ore grinding machine is used for carrying out wet grinding on coarse concentrate particles with the grade lower than or equal to 60%, and primary ore pulp is obtained after grinding is carried out for a period of time; secondly, the primary ore pulp is discharged into an ore pulp pool and pumped into a hydrocyclone through a slurry pump, the primary ore pulp is classified through the hydrocyclone, the classified settled sand (at a coarse fraction) is subjected to the second step again, and secondary ore pulp (at a fine fraction) overflows; thirdly, the secondary ore pulp enters a cylindrical magnetic extractor, and iron ore concentrate with the iron-containing grade higher than 63.5% is obtained. According to the magnetite concentrate quality-improving and impurity reducing technology, the steps are orderly linked, the existing low-grade coarse concentrate is ground, subjected to closed-loop classification and magnetic sorting, the iron-containing grade of the magnetite concentrate is increased to 63.5% or above from 60% or lower, and the content of silicon and aluminum impurities is effectively reduced.

The invention discloses a noise-reducing axial flow fan comprising a shell, an impeller is mounted in the shell, multiple unequal sawtooth grooves are formed in the tail of each blade of the impeller, non-equidistant sawteeth cut and comb a large eddy generated at the air outing position to form a plurality of small eddies, viscous air flow at roots of the blades is effectively separated and guided so as to form desired air flow. The axial flow fan is reasonable in structural design, stable in operation, uniform in air supply and stable in placement. An external motor dissipates heat timely by itself without affecting operation, automatic induction and alarm reminding can be performed when the fan is under abnormal actions in operation, and accordingly danger coefficient is lowered; meanwhile, the motor can be powered off automatically, the impeller stops operation immediately, and personal injuries are minimized.

The invention relates to an automatic orchard variation spraying machine based on a laser scanning technique. The spraying machine comprises a traction chassis, a laser scanning detection device, a variation spraying device, an adjustable spraying rod device and a power supply device, wherein the laser scanning detection device comprises a laser scanner; the variation spraying device comprises anagent tank, a diaphragm pump, a voltage adjusting shunt, a first-stage shunt, a second-stage shunt, an electromagnetic valve group and a plurality of five-finger atomizer; and the power supply devicecomprises a power generator and a power transformer which are arranged on the traction chassis. By adopting the spraying machine, information of crowns of fruit trees on both sides of a tree row can be automatically acquired, the flow of each nozzle and the air amount of a single fan can be automatically and independently controlled according to an agent application algorithm, and spraying as required and air amount supply are achieved, so that the pesticide utilization rate and deposition uniformity can be improved, and environment pollution and body damage to operators, which are caused by pesticide drifting in the pesticide application process, can be reduced.