40results about How to "Restore performance" patented technology

The invention discloses a federal forgetting learning method based on small sample knowledge distillation. The method comprises the following steps: initializing a global model by adopting a server and broadcasting the global model to each client; each client carries out local training on the received global model by using local data, and after the local training is completed, the global model is updated and sent back to the server; the server stores and aggregates the global models sent by all the clients, is used for updating the local global model of the server, and repeats the federal learning process from S1 to S3; a target client makes a forgetting request at a certain moment, federal learning is stopped, and at the moment, a server side uses a forgetting module to generate a forgetting model and takes the forgetting model as a student model; the server side finely adjusts and compares the language image pre-training model according to local small sample data, so that the language image pre-training model adapts to downstream data and serves as a teacher model; the server uses local small sample data to carry out recovery training through a knowledge distillation method, so that catastrophic forgetting caused by client data revocation is avoided, and the performance of a forgetting model is improved.

The invention relates to a charging type moisture power generation device based on a double-layer polymer film and a preparation method thereof, and belongs to the technical field of moisture power generation. Comprising an active electrode, double-layer polymer films and an inert porous electrode which are sequentially arranged, the first polymer film of the double-layer polymer films is a mixture of ferric hydroxide, polystyrolsulfon acid and polyvinyl alcohol, the second polymer film of the double-layer polymer films is poly (diallyldimethylammonium chloride), the first polymer film is in contact with the active electrode, and the second polymer film is in contact with the inert porous electrode. The second layer of polymer film is in contact with the inert porous electrode; the active electrode is made of metal with the standard electrode potential ranging from-1 V to + 0.5 V, and the inert porous electrode is made of metal with the standard electrode potential larger than + 1 V. Through moisture evaporation and an oxidation-reduction reaction, the battery can generate electricity by itself in a moisture environment, and can be self-repaired through the oxidation-reduction reaction when the performance is reduced, so that a charging effect is achieved.

The invention provides a regenerated accumulated nuclide electrodeionization membrane stack test method and system. The test method comprises the following steps: step 1, carrying out nuclide measurement on a to-be-treated EDI membrane stack; 2, a regeneration agent is continuously introduced into the EDI membrane stack to be treated, the radionuclide content in the EDI membrane stack to be treated is monitored in real time till the radionuclide content in the EDI membrane stack to be treated meets the requirement, and then the amount of the introduced regeneration agent and concentration change data of all kinds of nuclides are recorded; and 3, introducing ultrapure water into the to-be-treated EDI membrane stack meeting the preliminary regeneration monitoring requirement for fine regeneration until data acquired by the energy disperse spectroscopy meet the standard, thereby obtaining the regenerated EDI membrane stack. According to the test method for the regenerated accumulated nuclide electrodeionization membrane stack, the regeneration agent and the ultrapure water are sequentially introduced into the to-be-treated EDI membrane stack and monitored, so that the regeneration operation condition of the EDI membrane stack can be monitored in real time, and the content of the regeneration agent can be adjusted according to the test progress.

The utility model discloses a half-cavity loudspeaker module, which comprises a module shell, a loudspeaker monomer, sound absorption particles, a breathable separator and a sealing spacer, and is characterized in that the module shell is provided with an opening, a mounting position and a sound outlet hole; the loudspeaker single body is installed at the installation position, the loudspeaker single body divides the internal space of the module shell into a front cavity and a rear cavity, and the front cavity is communicated with the sound outlet hole; the sound-absorbing particles are filled in the rear cavity; the breathable separator is arranged at the opening to prevent the sound-absorbing particles from escaping from the rear cavity through the opening; the sealing spacer is detachably installed on the module shell and seals the opening, and the sealing spacer is located on the side, away from the sound absorption particles, of the breathable spacer. The half-cavity loudspeaker module is filled with the sound absorption particles, the virtual rear cavity is enlarged, the acoustic performance is improved, the sealing spacer can play a role in isolating the outside atmosphere from the rear cavity, and the stability of the performance of the half-cavity loudspeaker module is guaranteed. The whole rear cavity of the half-cavity loudspeaker module is basically filled with the sound-absorbing particles, so that the acoustic performance is greatly improved.

The invention discloses a preparation method of an impact-resistant elastic conductor material for 3D printing, and the method comprises the steps: taking silver particles / silver nanosheets as a conductive phase, and taking polyboron dimethyl siloxane as an impact-resistant material; by adding the polyhydroxy low-boiling-point solvent, the density of B-O dynamic cross-linking bonds in the polyboron dimethyl siloxane is reversibly adjusted, meanwhile, the number of silicon hydroxyl is reversibly increased, the hydrogen bond density is improved, the printability of the PBS is enhanced, and meanwhile, the cushioning effect of the PBS is not affected. According to the invention, the reduction and recovery of B-O density are controllable based on a reversible reaction principle of a polyhydroxy low-boiling-point solvent and a B-O dynamic cross-linking bond, and meanwhile, due to the seepage effect of silver powder particles / silver sheets, the Ag / PBS impact-resistant elastic conductor shows excellent conductivity. After the polyhydroxy low-boiling-point solvent in the printed pattern is subjected to vacuum drying, the B-O dynamic crosslinking bond density is recovered, and the Ag / PBS impact-resistant elastic conductor recovers good shear thickening effect, conductivity, sensing performance and self-repairing performance.

The application discloses a control method of a fuel cell system, the fuel cell system and a storage medium. The fuel cell system comprises at least two fuel cell monomers, and the control method comprises the following steps: acquiring a required power and a performance state of a last operation of each fuel cell monomer; determining a starting sequence of the fuel cell monomers according to the required power and the performance state; and starting the fuel cell monomers in sequence according to the starting sequence until the sum of output powers of all started fuel cell monomers reaches the required power. According to the application, the fuel cell monomers are started according to the required power and the performance state of the last operation of the fuel cell monomers, so that the performance of the fuel cell monomers with abnormal performance states can be recovered, the risk of the fuel cell system in a power supply process is avoided, the required power is met with the least number of principles, the number of started fuel cell monomers is reduced, the operation time of the fuel cell monomers is reduced, and the service life of the fuel cell monomers is prolonged.

The application discloses a data processing method and system of an inspection device. The method comprises the following steps: obtaining a plurality of sensing data obtained by a plurality of sensors sensing an inspection scene; cross- verifying the plurality of sensing data to obtain a verification result; in response to the verification result indicating that the plurality of sensing data are abnormally matched, determining at least one target sensor from the plurality of sensors; updating confidence information of the inspection device based on an abnormal type to which an abnormal state corresponding to the target sensor belongs; and in response to the updated confidence information being lower than a confidence information threshold, performing a repair operation on the target sensor. The application solves the technical problem of low inspection efficiency of the inspection device.

The present invention relates to the field of deep learning artificial intelligence technology, and in particular to a post-disaster restorative maintenance decision-making method based on deep reinforcement learning. A post-disaster restorative maintenance decision-making method based on deep reinforcement learning provides an efficient and intelligent solution for post-disaster restoration of large-scale distributed cluster systems through the combination of complex network models and deep reinforcement learning algorithms. After an extreme event, the method can dynamically adjust the repair strategies of multiple maintenance teams to minimize the elasticity loss in the system recovery process, thereby achieving rapid and efficient recovery of the system and ensuring that the cluster system can resume normal operation as soon as possible after a disaster.

The invention discloses a writing method of a ferroelectric field effect transistor array, and belongs to the technical field of micro-nano electronics. According to the method, a self-compensation write-in method is provided for a multi-stage storage ferroelectric field effect transistor array of a 1T structure, a pulse sequence of a self-compensation waveform is adopted for write-in and corresponds to different storage states in multi-stage storage, positive pulse write-in is adopted when the pulse sequence is higher than an intermediate storage state, and negative pulse write-in is adopted when the pulse sequence is lower than the intermediate storage state. The method comprises the following steps of: writing a FeFET memory cell, performing read verification on a written state of the FeFET memory cell, starting an error correction program for correction when a write error is found so as to reach a target state, and starting a durability recovery program to recover the performance of the FeFET memory device if the error correction program fails; the method simultaneously solves the reliability problems of large fluctuation between devices and between cycles, limited durability and serious write-in crosstalk, has the advantages of simple process, low hardware overhead and the like, is compatible with the current advanced node CMOS technology, and is easy to implement.

The invention discloses a hollow cathode assembly, which comprises an emitter, a top pore plate, a heater, a gas-guide tube, an auxiliary electrode and a contact electrode, the touch pole is of a cylindrical structure, one end of the touch pole is combined and fixed with a plate body, the center of the plate body is provided with a through hole, and the emitter, the top hole plate, the heater, the auxiliary pole and the gas-guide tube are coaxially arranged with the touch pole; the gas-guide tube is of a hollow tube body structure and is arranged in the touch holding electrode in a penetrating manner; the top hole plate is combined and fixed at one end, close to the plate body, of the gas-guide tube; a small hole is formed in the center of the top hole plate; the heater wraps the peripheral surface of the gas guide pipe; the emitter is located in the air guide pipe and abuts against the top hole plate, a cavity penetrating through the emitter is formed in the center of the emitter, and the cavity is communicated with the small hole; the auxiliary electrode penetrates through the gas guide tube, one end of the auxiliary electrode is located in the cavity, the cavity is of a conical structure, the inner diameter of an opening in the side close to the top pore plate is smaller than that of an opening in the side away from the top pore plate, discharge current oscillation can be reduced, and the stability of the hollow cathode assembly is improved.

The present application provides an online activation system, method and vehicle for a fuel cell, and relates to the field of fuel cell technology. The system includes: a bidirectional DC converter, a fuel cell, and vehicle equipment, and the vehicle equipment includes: a power battery and electrical equipment on the vehicle; a hydrogen control valve is provided on the hydrogen intake pipe of the fuel cell, a hydrogen circulation pump and a hydrogen-water separator are provided on the hydrogen circulation pipe of the fuel cell, and the hydrogen circulation pipe is connected to the hydrogen intake pipe; an air control valve, an air compressor, an intercooler and a first humidifier are provided on the air intake pipe of the fuel cell, an air-water separator, a three-way valve and a second humidifier are provided on the air circulation pipe of the fuel cell, and the air circulation pipe is connected to the air intake pipe, and the connection position of the air circulation pipe and the air intake pipe is located between the air control valve and the air compressor. Through the system of the present application, the on-board fuel cell can be automatically activated by multi-cycle hydrogen pump and high-power activation when the whole vehicle is running.

The invention provides a control method and a battery system. The control method comprises the following steps: running the battery system; acquiring the operating voltage of the battery system; calculating an average value of the operation voltage as an average voltage; calculating the minimum value of the operation voltage to obtain the minimum voltage; controlling the battery system to discharge internal accumulated water according to the average voltage and the minimum voltage; detecting whether the parameters of the battery system are abnormal; if the parameters are abnormal, the battery system enters a protection shutdown state, and the control method solves the technical problem that the accumulated water discharging method of the fuel battery affects the battery efficiency.

This invention relates to the field of materials. It relates to crosslinkable self-healing hole transport materials containing disulfide bonds and their applications. By introducing dynamic covalent bonds into the material system, not only can the construction of an internal covalent crosslinked network be achieved under mild conditions, improving the processing and operational stability of the hole transport material, but the dynamic covalent bonds also endow the hole transport material with a "self-healing" ability. When microcracks are generated due to bending, the dynamic chemical bonds within the material can break and reform under external stimuli, thereby repairing the cracks, restoring device performance, and enhancing the stability and application potential of the hole transport material in flexible organic optoelectronic devices.

The invention provides composite precise repairing equipment for a metal component, and relates to the field of metal component repairing. The composite precise repairing equipment for the metal component comprises a base tool used for being installed on a machining center workbench, and further comprises a displacement clamp, an X-axis, Y-axis and Z-axis assembly, a laser-arc composite assembly and a coaxial powder blowing assembly, and the displacement clamp is installed on the base tool and used for achieving swinging and rotating of a workpiece; the XYZ-axis assembly is installed on the base tool, and the laser arc composite assembly is installed on the XYZ-axis assembly and used for moving along the X axis, the Y axis and the Z axis. According to the composite precise repairing equipment for the metal component, the machining freedom degree can be freely switched even in the face of cavitation and recesses in complex shapes, when a thin-wall workpiece is repaired, excessive profiles do not need to be cut off through a traditional tool, the laser arc composite assembly and the laser arc composite assembly are combined, high efficiency and high quality are achieved, and layer-by-layer stacking machining is achieved; and the original profile performance can be better recovered.

The invention relates to a zinc-bromine double-flow battery performance recovery method, and belongs to the field of flow batteries. After the zinc-bromine double-flow battery is continuously charged and discharged for a period of time, under the condition that the performance of the battery is greatly reduced, an external circuit of the battery is reversely connected (namely positive and negative electrodes for charging and discharging of the battery are exchanged). The original positive electrode of the battery is subjected to a negative electrode electrochemical reaction, and the negative electrode is subjected to a positive electrode electrochemical reaction. And after several cycles of reverse connection charging and discharging, normal charging and discharging are recovered (i.e., after the reverse connection charging and discharging recover the battery performance, the positive electrode and the negative electrode are exchanged, and the original charging and discharging mode of the battery is recovered. And after the battery is charged and discharged, the performance can be recovered. The method is simple to operate, low in cost and obvious in effect, the cycle stability of the battery is remarkably improved, and the service life of the zinc-bromine double-flow battery is effectively prolonged.

The utility model discloses a low temperature resistant battery box and a low temperature resistant power supply, the low temperature resistant battery box comprises a U-shaped battery box body, the bottom of the U-shaped battery box body is symmetrically provided with two sealing plates, and an aluminum alloy liner is fixed between the two sealing plates; the grating heat conduction structures are installed on the outer walls of the two sides of the aluminum alloy inner container; the upper battery cover is mounted at the top end of the U-shaped battery box body in a bolting manner; and the oil storage cavities are arranged on the two sides of the interior of the U-shaped battery box body. According to the utility model, each battery monomer can be fully heated, compared with a hot air heating structure, the battery monomers cannot hinder hot air, the electric heating unit and heat conduction oil combined heat supply structure has higher response speed, and once the temperature of the external environment is reduced, the battery monomers can be heated by the electric heating unit and the heat conduction oil. And the electric heating rod can rapidly heat the heat conduction oil under the control of a worker, so that the temperature of the battery box is rapidly increased, and the performance of the battery can be rapidly recovered in a low-temperature environment.

The invention discloses a solid damping material for a passive tension viscous damper and a preparation method of the solid damping material, and relates to the field of damper damping materials, the solid damping material for the passive tension viscous damper comprises the following components by mass: 60-70 parts of a polymer matrix; 8-12 parts of a reinforcing material; 3-5 parts of a plasticizer; 1-2 parts of a cross-linking agent; 5 to 10 parts of a microencapsulated self-repairing agent; and 3-8 parts of modified nano clay. By introducing the reinforcing material and the modified nano clay, the frequency response range of the solid damping material is obviously expanded; by means of the microencapsulated self-repairing agent, the material can be self-repaired when damaged, and historical dependence caused by the memory effect is reduced; the use of the cross-linking agent helps to form a more stable three-dimensional network structure, and the hysteresis effect caused by strain history is reduced.

The application provides an API monitoring method and device in an energy internet marketing service system and a storage medium, the method comprising: acquiring all APIs that can be called in the energy internet marketing service system, and constructing a two-dimensional dependency matrix based on the dependency relationship of the APIs; monitoring the calling of all the APIs, and generating a calling record for each calling; generating an API calling heat map based on the calling records of all the APIs, and marking the average value of the calling response time of each API in the API calling heat map; determining a bottleneck API affecting the performance of the energy internet marketing service system based on the two-dimensional dependency matrix and the API calling heat map, and processing the bottleneck API. The application determines the bottleneck API affecting the performance of the energy internet marketing service system based on the two-dimensional dependency matrix and the API calling heat map, solves the problem that the calculation resource for determining the bottleneck API is large and the accuracy is not high, and thus the system performance can be recovered as soon as possible.

This utility model relates to the field of electronic atomizer technology and discloses an electronic atomizer with a replaceable battery cell, including an atomizing cartridge and an atomizing rod for holding e-liquid to be atomized. The atomizing rod and the atomizing cartridge are detachable. The atomizing rod includes at least a first connecting component (101), a second connecting component (102), and a support member (104). The support member (104) is fixedly disposed in the first connecting component (101) and is used to hold a battery pack. One end of the second connecting component (102) covers the upper end of the support member (104) and is detachable from the first connecting component (101). By separating the second connecting component (102) from the first connecting component (101), the battery pack (105) in the support member (104) can be replaced.

The present invention relates to a weather-resistant asphalt pavement regeneration agent and a preparation method thereof. Existing asphalt pavement regeneration agents have the problems of being unable to repair the molecular structure of waste asphalt, being relatively high in cost, having poor weather resistance, and having poor stability. The weather-resistant asphalt pavement regeneration agent of the present invention is prepared from the following components in parts by weight: waste engine oil, a diluent, a plasticizer, and an aromatic oil. When preparing the asphalt pavement regeneration agent of the present invention, an active diluent containing an epoxy group is added to effectively repair the molecular structure of waste asphalt and restore the original performance of asphalt; waste engine oil is used as the base oil component to reduce the manufacturing cost; an epoxy resin plasticizer having both weather resistance and stability is added to effectively absorb the by-products generated in the asphalt aging process, which can not only improve the stability of the regeneration agent, but also effectively enhance the durability of the regenerated asphalt; a certain amount of aromatic oil is added to supplement the aromatic components in the waste asphalt, effectively improving the viscosity, toughness, and high temperature resistance of the regenerated asphalt.

The application relates to the technical field of wireless communication, and discloses a network fault processing method and computer equipment, which comprises the following steps: acquiring actual index data of a network to be detected; using a target detection model to perform fault detection on the network to be detected based on the actual index data, so as to obtain a fault detection result; in the case that the fault detection result indicates that the network to be detected is in a target fault type, using a target twin network to perform parameter optimization processing on the network to be detected, so as to obtain a target parameter adjustment strategy; wherein the target twin network corresponds to the target fault type; performing a fault recovery operation based on the target parameter adjustment strategy, so as to complete network fault processing. The parameter optimization processing using the target twin network can safely and efficiently explore an optimal parameter adjustment scheme in a virtual simulation environment of a specific fault type, so that the automation of detection and the rapid repair of faults are realized, and the network operation and maintenance efficiency and the user communication experience are improved.

The application discloses a bore cleaning machine and belongs to the technical field of military auxiliary equipment. The transmission assembly comprises a driving part connected with one end of a frame body and a transmission part arranged across the frame body, and one end of the transmission part is rotationally connected with the driving part. The driving assembly comprises a driving wheel for rolling connection with a bore wall, a mounting frame and a transmission unit. The two ends of the mounting frame are respectively connected with the frame body and the driving wheel, and the mounting frame can adjust the interval between the driving wheel and the frame body. The driving wheel is rotationally connected with the transmission part through the transmission unit. The bore cleaning assembly comprises a bore cleaning brush disc for cleaning the bore wall, which is arranged at the end of the frame body far from the driving part and rotationally connected with the other end of the transmission part. The spraying assembly comprises an oil spraying disc arranged between the bore cleaning brush disc and the frame body, which is fixedly connected with the frame body, and the oil spraying disc is provided with oil spraying holes arranged opposite to the bore cleaning brush disc. The application can improve the automation degree of the bore cleaning machine and make the cleaning of the bore more thorough.

The present invention relates to the technical field of TPE composite materials, and discloses a wear-resistant and antibacterial TPE composite material and its application in a yoga mat. The present invention uses maleic acid, thionyl chloride, citronellol, furanylamine, acidified carbon nanotubes, etc. as raw materials, and obtains citronella-based carbon nanotubes through acyl chloride reaction, esterification reaction, Diels-Alder reaction, and amidation reaction, and then melt blends, granulates, and injection molds it with a thermoplastic polyurethane elastomer to obtain a wear-resistant and antibacterial TPE composite material. The thermoplastic polyurethane elastomer prepared by the present invention has excellent antibacterial properties, wear resistance, and self-repairing properties after experiments. The wear-resistant and antibacterial TPE composite material prepared by the present invention has a very important application value in a yoga mat.

This invention relates to the field of water resource recycling technology and provides a hydrological water resource recycling purification device, comprising: a control unit, which is connected to an adjustable component in the sensing and detection unit and the physical processing unit, for receiving monitoring data from the sensing and detection unit, constructing multiple evaluation models based on the monitoring data and outputting corresponding evaluation indicators, and generating adjustment commands for the opening rate of the adjustable perforated rectifier structure and the flow rate of the backwash pump based on the comparison results of the output evaluation indicators with preset thresholds, so as to maintain the water purification stability of the entire system process. This system realizes dynamic and refined control of the water purification stability of the entire process of the hydrological water resource recycling purification device. The adjustable perforated rectifier structure adjustment module optimizes the influent flow pattern from the source, enhancing the system's adaptability to fluctuations in influent water quality.

The invention discloses a series catalyst as well as a preparation method and application thereof, and belongs to the technical field of CO2-assisted propane dehydrogenation new energy. The tandem catalyst is prepared from the following components in percentage by mass: 20-40% of a Pt-based propane dehydrogenation catalyst, 20-40% of an alkaline earth metal carbonate CO2 hydrogenation catalyst, 2-10% of an auxiliary agent and the balance of a stabilizer, totaling 100%. The tandem catalyst provided by the invention is wide in component source, can activate propane and CO2 molecules at the same time, has excellent propane conversion per pass and propylene yield, and also has stability under related industrial conditions.

The present invention relates to a novel elastic structure membrane inter-electrode ion membrane electrolyzer, comprising an electrolyzer frame, wherein an anode disk and a cathode disk are respectively arranged on the lower and upper sides of the electrolyzer frame, and the characteristic is that a novel elastomer is arranged upward on the cathode disk, and the novel elastomer is formed by a plurality of groups of novel elastomer components arranged in an array, and a circle of cathode surface mesh fixing net is arranged on the periphery of the novel elastomer, and the upper end of the cathode surface mesh fixing net has a flange bent outward, and the top surface of the novel elastomer is provided with a cathode surface mesh, and the four sides of the cathode surface mesh are bent downward and buckled under the flange of the cathode surface mesh fixing net. The present invention has the advantages of good electrical conductivity, the novel elastomer has a small pressure on the ion membrane during operation, can withstand reverse pressure, and can recover to the height and performance required for operation; can effectively protect the ion membrane, can reduce the cell voltage and electrolysis power consumption; and reduces the manufacturing cost of the electrolyzer.

The invention discloses an integrated flow battery capacity recovery system and method, and belongs to the technical field of electrochemical energy storage. The integrated flow battery capacity recovery system comprises a main system stack and a rebalance stack, two ends of the main system stack are respectively connected with a positive storage tank and a negative storage tank, the positive storage tank is filled with a reducing agent, one end of the rebalance stack is connected with the positive storage tank, and the other end of the rebalance stack is connected with the negative storage tank. An adjusting device is arranged between the positive storage tank and the positive inlet of the rebalancing galvanic pile; the integrated flow battery capacity recovery system further comprises a charging and discharging device, and the charging and discharging device is connected with the main system electric pile and the rebalance electric pile. The integrated flow battery capacity recovery system and the integrated flow battery capacity recovery method effectively solve the problems that most reducing agents cannot directly react, and halogen simple substances are generated by adopting an electrolysis mode, and the liquid in the system is utilized to absorb halogen gas generated in the capacity recovery process, so that internal recycling is realized, and the energy consumption is reduced. The solution component stability is ensured.

The embodiment of the invention discloses a method for determining a quasi-co-located reference signal, a communication node and a storage medium. The method comprises the following steps: determining a second type of frequency domain bandwidth corresponding to a first type of frequency domain bandwidth; sending information under the condition that a beam failure event is detected according to the first type reference signal of the first type frequency domain bandwidth; wherein the information comprises reference signal index information of a first type of reference signals and frequency domain bandwidth index information of the first type of frequency domain bandwidths; and acquiring the quasi co-location reference signal of the downlink signal in the second type of frequency domain bandwidth according to the information from a predetermined moment.

The invention relates to the technical field of road materials, and particularly discloses a bio-based cold-laid asphalt thin overlay material and a preparation method thereof. The thin overlay material comprises the following components in percentage by mass: 85%-95% of asphalt pavement milling reclaimed material, 3%-10% of bio-based cold-mixed cementing fluid, 1%-4% of acrylic emulsion and 0.5%-1.5% of glycerin monostearate, the bio-based cold-mixed cementing fluid comprises the following components in percentage by mass: 5%-85% of asphalt, 5%-40% of vegetable oil, 5%-40% of oleic acid monoester and 3%-15% of terpene unsaturated compounds, the iodine value of the vegetable oil is greater than or equal to 100. All the components of the thin overlay material can be mixed under the normal temperature condition, the influence of the construction environment is small, the bio-based cold mixing cementing liquid can recover the performance of aged asphalt of the asphalt pavement and improve the overall performance of the road, and the acrylic emulsion and the glyceryl monostearate can improve the maintenance effect of the asphalt pavement.

The utility model belongs to the technical field of aviation, and particularly relates to an aerial survey unmanned aerial vehicle which comprises an unmanned aerial vehicle body, a radar cleaning mechanism is arranged at the bottom of the unmanned aerial vehicle body, and a laser radar is arranged at the bottom of the unmanned aerial vehicle body. When a laser radar detection port formed in the cruise unmanned aerial vehicle body is dirty, the device can simply clean the detection port of the laser radar, and compared with the unmanned aerial vehicle which returns, is manually cleaned and then works again, the cleaning is more efficient, and the cleaning efficiency is improved. The efficient cleaning mode can ensure that the performance of the laser radar is recovered in time, so that the optimal working state of the laser radar is kept, meanwhile, the cleaning mode saves the power consumption of the unmanned aerial vehicle for returning, manual cleaning and reworking, so that the working time of the unmanned aerial vehicle is longer, and the working efficiency is improved. Mechanical automatic cleaning equipment is usually provided with an accurate sensor and a control system, so that dirt on the surface of the laser radar can be accurately positioned and cleaned, and unnecessary damage to the equipment is avoided.