44 results about "Impact area" patented technology

The application belongs to the technical field of sensors and particularly relates to a water jet impact sensor and a use method thereof. An LED lamp indication area is arranged on a target plate surface, a pressure sensing unit with a fence type grid node is adopted, cylindrical weights with different masses and different round bottom areas are used to drop and impact the target plate from different heights, the water jet impact target plate is simulated under different pressures, the node pressure information, the node response coordinates and the drop height data of the drop from different heights are used as training data input values, the impact pressure is theoretically calculated, the theoretical calculation impact area is used as an output value, a multi-objective fast non-dominant sorting genetic algorithm model is trained, a database is established for predicting the jet area and the effective jet pressure mean value generated by the impact, prediction values are provided for water jet impact tests at different distances, wavelet threshold processing data in a real test process is checked, and the impact area and the impact pressure mean value in different areas are given.

The invention relates to the technical field of communication equipment, in particular to a communication base station which comprises a baseband processing unit, a radio frequency processing unit and an antenna feeder system which are installed on a stand column, the antenna feeder system is movably installed on the side portion of the stand column through a stretching component, and a movable frame of a stretching component body is installed on the side portion of the stand column in a sliding mode; the working angle and position of the antenna feeder system are adjusted by controlling the extension amplitude of the antenna feeder system on the side part of the stand column, so that the capability of resisting severe weather of the antenna equipment is improved; under the condition of hail weather, the antenna feeder system is erected, and the hail impact area is reduced; under the condition of storm weather, the antenna feeder system is folded towards the position close to the stand column, the extending distance of the antenna feeder system is shortened, the pressure borne by the connecting component is reduced, and the connecting component is prevented from being broken and damaged.

The utility model discloses a buoyancy self-balancing type multi-air-chamber inflatable seat, which belongs to the technical field of inflatable seats, and comprises an inflatable cushion, one side of the inflatable cushion is provided with an inflatable tube, the bottom end of the inflatable cushion is provided with a buffer structure, the buffer structure comprises an air cushion, the top end of a groove rod is provided with a plurality of rectangular grooves, and the rectangular grooves are communicated with the inflatable tube. Two air cylinders are arranged on the outer surface of the air cushion, two air outlet holes are formed in the bottom end of the sliding rod, and arc-shaped pieces are fixedly connected to the two ends of the sliding rod correspondingly. By arranging the buffering structure, arranging the air cushion at the bottom end of the inflatable cushion and dividing the interior of the air cushion into two areas through a groove rod, when one side of the air cushion is subjected to water surface impact force, the air cushion is not prone to falling off; according to the inflatable seat cushion, the sliding rod is pushed by air to move to bring the air outlet hole into the area on the other side, so that the air in the area on the side, which is impacted, of the air cushion can be quickly transferred to the other side, the balance of the inflatable seat cushion is kept as far as possible, the inflatable seat cushion is prevented from turning on one side, and the use stability of the inflatable seat cushion is improved.

In order to solve the problems that in the prior art, calculation precision and efficiency are difficult to consider at the same time during supersonic jet machining, and detached shock waves cannot be accurately captured, the invention provides a finite element simulation method for the stagnation flexible constraint flow field characteristics of a jet impact area. The finite element simulation method comprises the steps that firstly, a geometric model of a jet area and an outer watershed is established, and preliminary solving is conducted; extracting jet flow axis pressure gradient characteristics to determine detached shock wave interval coordinates; then reconstructing a block geometric model comprising an upper jet flow region, a detached shock wave region, a stagnation region and an outer watershed according to the coordinates, and implementing differential local grid encryption on the shock wave region and the stagnation region; and finally, carrying out second iterative solution based on the Sutherland viscosity law to obtain final flow field distribution. According to the method, the thickness and the position of the shock wave layer are accurately captured while the number of the grids is controlled through the block encryption strategy, the contradiction between the calculation economy and the numerical precision under the transonic flow condition is solved, and the method is suitable for numerical simulation of the complex supersonic gas jet flow field containing the detached shock wave and the stagnation region.

The invention belongs to the field of wear-resistant elbow casting, and particularly relates to a lost foam casting method for a wear-resistant elbow. Comprising the steps that S11, target working condition parameters are obtained; step S12, based on the obtained target working condition parameters, calculating the thickness of an impact area of the wear-resistant elbow; s13, based on the impact thickness of the wear-resistant bent pipe, the impact area position of the wear-resistant bent pipe is calculated; and S14, the needed wear-resisting elbow pipe casting is manufactured based on the impact area position and the impact area thickness of the wear-resisting elbow pipe. In this way, the accurate position of the impact area and the thickness needed by the wear-resistant elbow are scientifically determined, and therefore materials and cost are saved.

This invention discloses a dam-break type wave-on test device and method, relating to the field of wave-on testing, and solves the problems of existing wave-on test devices being unable to achieve precise synchronous visualization of the flow field and failing to consider the deck wave load under the combined action of water and air. The invention includes a gate lifting system, a dam-break test water tank, a model attitude adjustment system, and a phenomenon observation system. The dam-break test water tank includes a water storage area, an impact area, and a baffle arrangement area. The water storage area stores test water, the impact area is used to place the test model for wave-on testing, and the baffle arrangement area is used to install sensors and place cables. The model attitude adjustment system is located below the impact area to adjust the model's attitude and control its lifting and lowering. The gate lifting system is located above the water storage area to control the gate's lifting and lowering. The phenomenon observation system records the wave-on test phenomena. Air is pumped into the water to simulate bubble breakage. This invention utilizes a high-speed camera to assist in analyzing the water movement path and simulates the deck wave load under the combined action of water and air by pumping air into the water.

Motor vehicle (1) with an adjustable roof (5) comprising a roof skin (13), a rollover protection element (21) extendable into a protective position (ZT), which in the protective position (ZT) protrudes beyond the roof skin (13) when the roof (5) is in the protective position (ZT), and which has a penetration element (25) at its upper end (24), wherein the roof skin (13) extends obliquely to an imaginary horizontal (HO) at least in an impact area (41) above the rollover protection element (21) at a first angle (α), wherein the penetration element (25) is arranged on the rollover protection element (21) at a second angle (γ) relative to the upper end (24) of the rollover protection element (21), characterized in that the rollover protection element (21) has as its upper end (24) a cross member (33) with a cross-sectional profile to which the penetration element (25) is attached, the cross-sectional profile of the traverse (33) is approximately semicircular with a circumferential wall (35), wherein the circumferential wall (35) has a flat section (36) which is spanned by a second section (37), and wherein the second section (37) adjacent to the upper end (24) has a flat mounting profile wall (38) to which the piercing element (25) is attached, wherein the mounting profile wall (38) runs at the first angle (α) to the imaginary horizontal (HO), the penetration element (25) is attached to the mounting profile wall (38) in such a way that it encloses the second angle (γ) with a central longitudinal axis (MA) of the rollover protection element (21), which coincides with an imaginary vertical (VE), and hits the roof skin (13) approximately perpendicularly in the impact area (41).

The present application relates to a kind of passenger protection method and application device based on seat transverse safety belt, device includes safety belt left, right shoulder strap and right side chest band;After normal binding safety belt, safety belt right shoulder strap exerts a x negative force on human body, the tendency of human forward inclination is restrained, the human body movement posture is corrected, safety belt right side chest band exerts a y negative force on human body, the tendency of human lateral inclination is restrained, under the joint action of three safety belts, the passenger who occurs movement is movement posture, and secondary impact area adjustment, so that the passenger tends to the protection area designed.When non-normal angle impact occurs, located in safety belt right shoulder strap can provide sufficient restraint, change the final dumping destination of passenger to the protection area designed by vehicle.When normal angle side impact occurs, the safety belt under right side rib generates lateral restraint to passenger, ensure that before passenger inclines to the passenger space on the other side, central air bag is deployed, to provide flexible protection for passenger.

The utility model discloses an explosion-proof pressure relief plate for petrochemical industry, relates to the technical field of safety protection equipment for petrochemical industry, and aims to solve the technical problem that the pressure relief plate is easy to excessively deform and even crack due to single buffering mode and insufficient buffering force of the current explosion-proof pressure relief plate. The metal plate is arranged on the outer layer, one side face of the metal plate is in a corrugated shape, a pressure-resistant plate with the same shape as the corrugated surface is fixedly arranged on one side, located on the corrugated surface, of the metal plate, and a buffer plate is fixedly arranged between the opposite surfaces of the metal plate and the pressure-resistant plate. And external pressure impact can be effectively resisted. The pressure-resistant plate is connected with the metal plate, when the pressure-resistant plate is impacted, the corrugated structure can generate certain elastic deformation, so that a part of impact energy is absorbed and dissipated, the damping and buffering effects are achieved, and the pressure-resistant plate has the advantages that the impact area is increased, multiple buffering structures are added, and buffering protection is improved.

The application discloses a water cushion pond structure for preventing impact on a side slope, which is provided with a horse path, water cushion pond side slopes, a water cushion pond bottom plate and an excavation impact area. A plurality of horse paths and a plurality of water cushion pond side slopes are alternately connected in sequence, and the water cushion pond bottom plate is located between the lowermost water cushion pond side slopes. The excavation impact area is formed at a specified and preset position of the horse path, the water cushion pond side slopes and the water cushion pond bottom plate, the excavation impact area is cut off from the horse path and the water cushion pond side slopes, and the bottom of the excavation impact area is connected with the water cushion pond bottom plate. The falling point area of the pick-up water tongue is located in the excavation impact area, and the excavation impact area is used for receiving the pick-up water tongue formed when the dam body surface hole picks up and discharges flood. The application can ensure that the water cushion pond side slopes and the horse path are not impacted while the engineering quantity is not greatly increased, thereby enhancing the structural stability of the whole water cushion pond and effectively increasing the energy dissipation rate of the pick-up water body.

The utility model belongs to the technical field of tide level instruments, and particularly relates to a tide level instrument protection device for marine surveying and mapping, which comprises an outer protection cover, a flow guide plate is fixedly connected to the upper side of the outer surface of the outer protection cover, and a spiral groove is formed in the lower side of the outer surface of the outer protection cover; the flow guide plates can change the water flow direction, reduce the front impact area and guide marine organisms to slide off along the slopes, the spiral grooves can induce water flow to form axial flow, destroy water flow continuity, decompose large vortexes into small-scale turbulent flow and reduce wave resistance, and therefore the transverse swing amplitude of the buoy is reduced, and the service life of the buoy is prolonged. A honeycomb structure in the honeycomb composite buffer plate provides rigid support, energy is absorbed through plastic deformation during collision, the damper buffers the impact force transmitted into the fixing rod again, and therefore under the cooperation of the flow guide plate, the spiral groove, the honeycomb composite buffer plate and the damper, the impact force buffering strength of the protection device is improved, and the service life of the protection device is prolonged. And therefore, the protection effect on the tide level meter is improved.

This invention discloses a method for bottom ball impact testing and data acquisition of power batteries for new energy vehicles, relating to the field of bottom ball impact testing and data acquisition for power batteries for new energy vehicles. It aims to improve the safety and reliability of battery packs throughout their entire lifecycle. The method includes: setting impact detection electrodes on the surface of the impacted cell in a predetermined impact area of ​​the battery pack; applying an impact to the predetermined impact area of ​​the battery pack and generating a trigger signal indicating the occurrence of the impact; responding to the trigger signal by applying an alternating current signal with a specific frequency range and amplitude to the impacted cell through the impact detection electrodes; simultaneously acquiring the transient voltage response of the impacted cell under the alternating current signal; obtaining the transient electrochemical response characteristics of the impacted cell based on the transient voltage response; determining whether the impacted cell has predetermined microscopic damage based on the transient electrochemical response characteristics; and assessing the long-term safety risks of the battery pack based on the determination of microscopic damage.

The invention provides a high-strength and scouring-resistant fired brick, a preparation method thereof and application of the fired brick in masonry of an impact area of a torpedo ladle. The fired brick comprises the following components in percentage by weight: 40-55% of an alumina homogenized material, 20-30% of brown aluminum oxide, 2-4% of magnesia, 6-8% of silicon carbide, 1-3% of crystalline silicon, 4-6% of metal aluminum powder, 8-12% of crystalline flake graphite and 3-4% of a binding agent. According to the high-strength and scouring-resistant sintered brick for the torpedo ladle impact area, the alumina homogenizing material, the magnesia and the metal aluminum powder are introduced, so that the high-temperature strength, the scouring resistance and the thermal shock stability of the product are improved.

The invention discloses a flow guide device for assisting particle screening. The flow guide device comprises a free adjusting and fixing device and an additional flow guide plate assembly. The freely-adjusted fixing device can determine the position according to a particle retention area or an excessive impact area and is fixed to the pored position of a side pressing plate, extrusion locking needs to be completed through a guiding locking column and an elastic rubber barrel when no hole exists, the flowing trend of particles can be changed through a guiding flow turning plate of the fixing device, and the guiding angle alpha is approximately equal to the angle of a single particle after guiding; the screening opportunity is increased to effectively avoid particle retention; an additional flow guide plate assembly can be installed on the length of the punching sieve plate, the flow guide and screening assisting task for assisting particle screening is prolonged, in the unstable flowing state II, the additional flow guide plate and the side pressing plate have the beta angle difference in particle collision comparison, and it means that the additional flow guide plate avoids the particle retention phenomenon. The flow guide effect of the device can effectively improve the use efficiency, the particle selection quality and the impurity removal efficiency of the punching sieve plate in two flowing states.

The invention discloses a small-sized battery weight impact testing machine, and relates to the technical field of small-sized battery detection, the small-sized battery weight impact testing machine comprises a case, a moving plate, a driving assembly, a distance sensor and an impact detection device, the impact detection device is equipped with a second motor, a first hammer body, a second hammer body, a third hammer body, a fourth hammer body and an adjusting mechanism; the hammer body IV can realize linear impact detection and simulate a long-strip hard object collision scene; the first hammer body, the second hammer body and the third hammer body control the lifting combination through the adjusting mechanism, small, medium and large impact areas are formed, and multi-scene surface impact detection is completed. The equipment is provided with a balance weight groove, and the impact weight can be accurately adjusted through a balance weight block and a granular balance weight object; the distance sensor monitors the falling height of the movable plate in real time, and it is guaranteed that the impact speed and stroke are controllable.

The invention relates to an interior lining (10) for a vehicle pillar (2), which is arranged towards the rear of the vehicle after a side window (7), with a molded portion (12) which has a contour profile (18) that is convexly curved towards the side window (7) and towards the front of the vehicle and thus reduces an impact area for an airflow (LS) flowing along the side window (7) towards the rear of the vehicle and is designed such that a larger proportion (LS1) of the airflow (LS) flows along the contour profile (18) around the vehicle pillar (2) towards the rear of the vehicle and a smaller proportion (LS2) of the airflow (LS) flows towards the center of the vehicle, as well as a vehicle (1) with at least one vehicle pillar (2) which comprises a pillar core (3) and such an interior lining (10).

The application discloses a method for analyzing interference aerodynamic heat of a booster, comprising the following steps: obtaining air flow parameters at different time according to flight trajectory calculation results; calculating shock wave angles of a booster nose at different time according to the air flow parameters at different time; determining a shock wave direct impact area, a first area and a second area according to the calculated shock wave angles of the booster nose; simplifying the first area into a nose stagnation point and performing boundary layer outer edge parameter calculation and cold wall heat flux density calculation; simplifying the second area into a conical surface and performing boundary layer outer edge parameter calculation and cold wall heat flux density calculation; and forming a bundled launch vehicle conical booster interference aerodynamic heating environment according to the boundary layer outer edge parameter calculation results and the cold wall heat flux density calculation results. The application can quickly provide a round of interference aerodynamic heating calculation results in the launch vehicle demonstration, scheme initial stage or multi-trajectory iteration process, so as to carry out missile body heat protection design and evaluate load and strength problems.

The utility model relates to a kind of intelligent driving vehicle multi-scene collision simulation test equipment, belong to TT technical field.The intelligent driving vehicle multi-scene collision simulation test equipment, comprising: drive chassis, the bottom of the drive chassis is slidably connected with guide rail, the side of the drive chassis is provided with multiple impact plates;Adjusting collision mechanism, for adjusting the adjusting collision mechanism of multi-angle collision simulation is set on the side of drive chassis;Wherein, the adjusting collision mechanism includes the support seat of being set on the top of drive chassis, the outside of the support seat is provided with adjusting buffer assembly, the side of multiple impact plates is provided with adaptive component;Adjusting buffer assembly can flexibly adjust impact plate angle, simulate multidirectional collision, improve test authenticity.while buffering effect reduces the impact damage to equipment, prolongs service life.Adaptive component supports adjusting impact area, satisfies different test needs, improves test accuracy.

The invention relates to a crêping doctor and to a production method for a crêping doctor, which crêping doctor comprises a blade-shaped main body which is made of metal, in particular of steel or stainless steel, and which has a running surface that can be placed against the drying cylinder, and an end face which is at least partially covered with an anti-abrasion layer which provides the impact area for the fibrous web, the impact area having a plateau and a number of notches, characterized in that the surface roughness Ra1 of the plateau and the surface roughness Ra2 in the notches differ from one another.

A plurality of active buffer assemblies and a flexible protective cover are arranged on the collision face of an anti-collision frame of the anti-collision vehicle in an array mode, and an optical fiber strain sensor is arranged on the flexible protective cover; the active buffer assembly comprises a mounting seat; a magnetic field generating device; the explosion-proof bag is filled with magnetorheological fluid; the buffer controller is configured to determine a rear vehicle collision main area and collision side areas located on the two sides of the collision main area based on signals of the optical fiber strain sensors. A plurality of magnetic field generating devices corresponding to the impact main area are controlled to work in a first pulse mode, so that the rigidity of the corresponding anti-explosion bag is alternately switched between a first rigidity level and a second rigidity level, and the first rigidity level is higher than the second rigidity level; and synchronously controlling the plurality of dry magnetic field generating devices corresponding to the impact side areas on the two sides to work in a second pulse mode, wherein the first pulse mode and the second pulse mode are opposite in phase. According to the invention, dynamic buffering and transverse movement secondary impact prevention can be realized.

This invention relates to the field of impact resistance testing technology and discloses a testing method for testing the impact resistance of materials. The method includes: bonding a thin film material into a long strip shape and clamping the material with four roller sets to ensure its stability during the test. Each roller set consists of rollers arranged vertically. By controlling the rotation of the roller sets, the non-impacted areas can be adjusted to the impact areas, thereby realizing continuous multiple impact tests. During the test, each area of ​​the thin film material can be uniformly impacted, avoiding the inefficiency of traditional sheet-by-sheet material testing.

The utility model discloses a short-range kinetic energy expanding type disable anti-riot bullet, which comprises a bullet core and a jacket, the bullet core is half the jacket, the front end of the bullet core is in a half oval shape, a disable pit is arranged on the bullet core, the disable pit and the bullet core are positioned on the same axis, the bullet core is made of lead-antimony alloy containing 10-13% of antimony, the jacket is made of brass, the disable pit is in a horn shape, and the jacket is made of stainless steel. A plurality of pre-splitting disability ribs are arranged on the inner wall of the armor at intervals in the circumferential direction of the armor, the axes of the pre-splitting disability ribs are parallel to the axis of the disability pit, the pre-splitting disability ribs are embedded into the outer wall of the upper portion of the bullet core, the bullet head is assembled into a pistol bullet, and the effective shooting distance is within the target range of 20-30 m. Compared with the prior art, the shooting precision and the stability are good, a wider impact area can be formed on a soft target, the target is enabled to disable rapidly, and the risk of excessive penetration is reduced.

System (10) for automatically unlocking a door (1) of an aircraft (100) upon impact of the aircraft (100), comprising: a door opening (3); a door (1) which is hinged to the aircraft (100) in the door opening (3); and a locking mechanism (4) designed to lock the door (1) to the aircraft (100) in a closed operating state; wherein the locking mechanism (4) has a load transfer device (5), which is designed and coupled to an impact area (7) of the aircraft (100) such that, in the event of an impact of the aircraft (100) in the impact area (7), the load transfer device (5) transmits a deformation load caused by an inward deformation of the impact area (7) to the locking mechanism (4) and thereby unlocks the door (1).

The utility model provides a windage yaw arresting cable for a power transmission and distribution line, which comprises two insulator strings, and umbrella skirts are arranged outside the insulator strings; the impact area is connected between the two insulator strings; the impact-resistant sheath is arranged outside the impact area in a sleeving manner; and the connecting fitting is arranged at the outer end part of the insulator chain and is used for installing the insulator chain on the power transmission tower. According to the windage yaw arresting cable for the power transmission and distribution line, the impact-resistant sheath is arranged outside the impact area, so that the impact resistance of the impact area is effectively improved, and the damage to the windage yaw arresting cable structure caused by long-term impact of a suspension insulator is reduced, so that the service life of the flexible arresting cable is prolonged, and the operation safety and reliability of the power transmission and distribution line are improved.

The utility model provides a kind of asymmetric flow guide type ceramic-manganese dioxide refractory brick for ladle, including refractory brick body, the hot face of refractory brick body uses double curvature composite surface, the upper 1 / 3 area of double curvature composite surface is first curved surface, and the lower 2 / 3 area of double curvature composite surface is second curved surface;Double curvature composite surface is provided with several micro convex flow guide ridges along the refractory brick length direction;The cold face of refractory brick body uses fractal radiating rib structure, and the fractal radiating rib structure includes main rib and secondary rib, and the main rib and secondary rib form tree network structure.The utility model is combined by double curvature composite surface+micro convex flow guide ridge, realizes the impact strengthening and drainage optimization of molten steel impact area, improves the impact and erosion resistance.

The invention relates to the technical field of marine equipment shock resistance tests, and discloses a marine equipment shock resistance load equivalent conversion method, device and equipment and a medium, the load equivalent conversion method comprises the following steps: scaling an original shock load of a time domain according to a scaling proportion of a set scaling model of marine equipment; according to the scaled original impact load of the time domain, a key impact area is selected, and the original impact load of the distributed time domain is extracted and concentrated as a local concentrated load of the time domain; equivalently converting the local concentrated load of the time domain into an impact spectrum of the frequency domain based on an impact spectrum principle; and converting the impact spectrum of the frequency domain into a triangular wave load. According to the load equivalent conversion method, the load equivalent conversion device, the load equivalent conversion equipment and the medium, the distributed original impact load in the time domain is sequentially converted into the local concentrated load and the impact spectrum in the frequency domain until the time domain triangular wave load which is easier to implement is obtained, and technical support is provided for equipment safety research in the collision impact problem of ocean equipment.

The utility model provides a drop weight testing machine support, which belongs to the technical field of testing devices and comprises a supporting seat, an abutting assembly and a clamping assembly, an impact area is arranged on the supporting seat, an impact channel is arranged in the impact area, the abutting assembly is arranged on one side of the supporting seat in the impact area and comprises two abutting blocks arranged on two sides of the impact channel, and the clamping assembly is arranged on the supporting seat. The two abutting blocks are used for abutting against the convex side face of the arc-shaped sample, the clamping assembly is arranged on the other side, located in the impact area, of the supporting base, is opposite to the abutting assemblies and comprises two ejection blocks arranged on the two sides of the impact channel and a driving component, and the driving component is used for driving the two ejection blocks to move and abut against the concave side face of the arc-shaped sample. And the arc-shaped sample is fixed above the impact channel. According to the drop hammer testing machine support provided by the utility model, an arc-shaped sample can be directly fixed on the drop hammer testing machine support, and the material performance of the arc-shaped sample does not change before a test, so that the test result is accurate.

The invention relates to a method of controlling a safety device of a vehicle. The safety device is configured to react to an imminent collision of the vehicle with a collision object by intervention in the vehicle. In a reading-in step, environmental data and driving data as well as intervention data are read in. In a calculation step, a first expected impact area is calculated using the environmental data and the driving data, and a second expected impact area is calculated using the environmental data, the driving data and the intervention data. In an evaluation step, the first expected impact area position and the second expected impact area position are evaluated with respect to vehicle sub-areas using reference data, which define for each sub-area an evaluation coefficient relating to the influence of the expected impact area position in this sub-area on the safety of the vehicle occupants. In a generation step, a control signal is generated depending on the evaluation result, the control signal comprising control parameters for controlling the safety device. The invention also relates to a device, a safety system and a storage medium.

This invention discloses an intelligent scheduling method for emergency repair resources during typhoon disasters based on real-time prediction and dynamic path planning. The method includes: acquiring relevant repair data in real time and generating comprehensive disaster scheduling data after preprocessing; identifying high-risk power grid equipment within the typhoon's impact area based on the comprehensive disaster scheduling data and generating a list of tasks to be repaired; inputting the characteristic information corresponding to the tasks to be repaired into a fault priority assessment model to obtain repair priorities and generate a dynamic repair task sequence; generating an initial scheduling plan based on the dynamic repair task sequence, available repair team information, repair material information, and traffic condition data; generating an initial repair path and a backup repair path according to the initial scheduling plan, and dynamically adjusting the repair path during the journey based on updated traffic condition data. This method can improve the real-time performance, accuracy, and path adaptability of emergency repair resource scheduling during typhoon disasters, and shorten fault response time.

The application provides a kind of unmanned aerial vehicle risk assessment method and related device based on space grid, by the target area geographic security basic data unified mapping to the static grid database according to space grid coding index, make population, shelter, protection and static risk attribute such as regulation constraint realize standardization storage and coding retrieval, and generate the probability distribution of estimated crash landing impact area based on unmanned aerial vehicle operation parameter information, convert continuous space influence range into corresponding grid coverage set, then output the risk result to the ground in the grid level combined with probability distribution and static risk attribute, so that traditional complex space geometry calculation and multi-layer superposition analysis are converted into efficient coding index and discrete aggregation operation, significantly improve the calculation efficiency and real-time performance of risk assessment to the ground, reduce data fusion cost, and provide real-time query risk assessment support for unmanned aerial vehicle online path planning, dynamic obstacle avoidance and airspace risk control.