45results about How to "Adaptable to the environment" patented technology

The invention provides a control algorithm of multi-unmanned aerial vehicle cooperation formation and obstacle avoidance. The control algorithm comprises steps of (1) when an unmanned aerial vehicle formation executes a flight task, detecting positions and speed information of the unmanned aerial vehicles and airspace obstacles through an airborne sensor, and abstracting obstacles in a flight space into ball bodies; (2) according to position information of each unmanned aerial vehicle, constructing an unmanned aerial vehicle formation communication topology, and using a distributed transmission method, achieving information interaction between neighborhood unmanned aerial vehicles in the formation; (3) constructing an unmanned aerial vehicle dynamics model; and (4) when detecting an obstacle, determining a safe distance of obstacle avoidance of the unmanned aerial vehicles, judging whether the distance between any unmanned aerial vehicle and the obstacle in the unmanned aerial vehicleformation meets requirements of the safe distance, and if not, adjusting the formation pattern and carrying out obstacle avoidance through a virtual force strategy. The control algorithm is operable and simple; cooperation formation of multiple unmanned aerial vehicles can be achieved; obstacles can be avoided quite flexibly; and the control algorithm is very important for multi-cooperative combats.

The invention discloses an unmanned aerial vehicle cluster dynamic task allocation method imitating a wolf pack cooperative hunting mechanism. The method comprises the steps of 1, initializing battlefield environment setting; 2, executing a reconnaissance/strike/lead task; 3, performing attack formation pre-allocation based on a hunting stress mechanism; 4, performing first wolf/fierce wolf task allocation based on a hunting energy balance model; 5, updating a reconnaissance environment map; step 6, performing wolf detection task allocation based on an environmental stress mechanism; and step7, conducting wolf pack moving path planning. The method is oriented to an unmanned aerial vehicle cluster investigation and attack integrated cooperative combat application background in an uncertainenvironment, a distributed task allocation architecture which supports task load balance and decentralization and has task evolution characteristics is provided, and the task execution efficiency andthe autonomous ability level of the unmanned aerial vehicle cluster are further improved on the basis of reducing the design cost and improving the long-term robust decision-making ability.

The invention discloses a turbidity compensation method for COD detection based on spectrometry. The method comprises the following steps: (1) acquiring the absorption spectrum of a to-be-measured liquid; (2) calculating the absorption spectrum of the to-be-measured liquid in the step (1) under the action of current turbidity; and (3) carrying out peak drop correction on the absorption spectrum of the to-be-measured liquid in the step (1). The turbidity compensation method introduces an impact factor KN(lambda) to characterize influence of turbidity substances on the light absorption effect of organic molecules and establishes a KN(lambda) model by using an approximate linear relation between KN(lambda) and the absorbance of a standard COD liquid and a negative exponential relation between the valley value of KN(lambda) and turbidity so as to correct and directly deduct peak drop in a turbidity baseline compensation method; and the established model has environmental adaptability, so precision and flexibility of COD measurement are improved.

According to the invention, the method comprises the steps: employing a PPA path search algorithm (a potential path area path search algorithm) to construct an initial decision path; employing a decision attribute factor model training method to finally output a real path restored by the algorithm; selecting five decision optimization factors, namely path travel time, path length, path turning times and path controlled signal gate number, as decision attributes, so that the decision factors for track recovery have higher environmental adaptability. The setting of the decision weight is comprehensively determined by subjective and objective data, so the method is more scientific and practical, the algorithm speed is high, and large-scale data can be processed; the method is suitable for path reconstruction of small and medium-sized road networks, can complete restoration of missing detection vehicle tracks with high precision, has good robustness, and lays a foundation for further statistics of urban traffic road network microcosmic parameters.

The invention relates to an unmanned aerial vehicle cluster cooperative confrontation control method simulating eagle pigeon intelligent game. The method comprises the following implementation steps:1, initializing battlefield environment setting; 2, performing unmanned aerial vehicle cluster confrontation motion control; 3, designing an attack and defense strategy based on the eagle pigeon intelligent game; 4, solving a red and blue payment matrix based on the eagle pigeon intelligent game; 5, solving a red and blue mixed strategy based on the eagle pigeon intelligent game; and 6, outputtinga red and blue countermeasure result. The invention provides a distributed unmanned aerial vehicle cluster cooperative combat control architecture combining cluster combat motion control and attack and defense strategy selection control for a large-scale unmanned aerial vehicle cluster cooperative combat application background in a complex combat environment, and provides a distributed unmanned aerial vehicle cluster cooperative combat control architecture based on reduction of the design cost and improvement of the long-term robust combat capability. The cooperative combat efficiency and theautonomous capability level of the unmanned aerial vehicle cluster are further improved.

The invention discloses a method for designing a transmitting directional diagram of foresight airborne radar. The problems that a designed directional diagram is poor in self adaptability in the prior art, radiation energy in a clutter area is high and the target echo signal-to-clutter ratio is low are mainly solved. The method includes the implantation steps that first, steering vectors are constructed according to target echo signals and clutter echo signals received by the airborne radar at the previous moment and foresight airborne radar parameters; second, the target echo and the clutter echo are calculated according to the steering vectors, so that a target signal average power formula and a clutter signal average power formula are obtained; third, the signal-to-clutter ratio is constructed through the target signal average power and the clutter signal average power; fourth, the maximum signal-to-clutter ratio is used as a cost function, so that a corresponding convex optimized mathematical model is established, and the optimum value of a transmitting signal correlation matrix is obtained; fifth, the transmitting directional diagram of the foresight airborne radar is figured out. The designed transmitting directional diagram can generate a low side lobe in a high clutter area, the radiation energy in the high clutter area can be lowered, and the method can be used for improving the clutter inhibiting capacity of a transmitting terminal.

The invention discloses an unmanned aerial vehicle convenient to observe, and belongs to the field of unmanned aerial vehicles. The unmanned aerial vehicle comprises a main body structure part, a peripheral key component and a rotary wing assembly for driving an unmanned aerial vehicle body. The rotary wing assembly comprises at least three propellers. The spiral paddles surround the unmanned aerial vehicle body. At least the main body structure part is coated with a light absorption material coating. Due to the fact that the main body structure part comprising the unmanned aerial vehicle body and the like is coated with the light absorption material, and the peripheral key component and/or the body contour part are/is provided with active light-emitting components to prompt the position and flying state of the unmanned aerial vehicle, the distinguishing degree of the unmanned aerial vehicle which needs to be controlled within a sight distance range is greatly improved.

The invention discloses an unmanned aerial vehicle facilitating observation, and belongs to the field of unmanned aerial vehicles. The unmanned aerial vehicle comprises a body structure part, peripheral key positions and a rotor wing assembly driving an unmanned aerial vehicle body. The rotor wing assembly comprises at least three sets of propellers, the propellers are arranged around the unmanned aerial vehicle body, and at least the body structure part is coated with a light absorption material coating. According to the design that a body and others of the body structure part of the unmanned aerial vehicle are coated with the light absorption material coating, meanwhile, active light emitting elements are arranged on the peripheral key positions and/or the contour part of the body to prompt the position and flying state of the unmanned aerial vehicle, and therefore the distinguishing degree of the unmanned aerial vehicle needing to be controlled within the visibility range is greatly improved.

The invention belongs to the noise filtering technical field and relates to a noise filtering method and device. The noise filtering device includes a microphone, an analog-to-digital converter, a signal processor, a digital-to-analog converter, a power amplifier and a loudspeaker; the output end of the microphone is connected with the input end of the analog-to-digital converter; the output end of the analog-to-digital converter is connected with the input end of the signal processor; the output end of the signal processor is connected with the input end of the digital-to-analog converter; the output end of the digital-to-analog converter is connected with the input end of the power amplifier; and the output end of the power amplifier is connected with the input end of the loudspeaker. With the noise filtering method and device adopted, noises specified by a user can be recorded, and the frequency-domain characteristics of the noises are analyzed, and the noises are filtered according to the frequency-domain characteristics.

The invention relates to a buffering device with a leg type structure. The buffering device comprises a device containing plate and a plurality of buffering energy-absorbing legs. According to the technology, the physiological structure and jumping characteristics of locust legs are used for reference, the contact rebound phenomenon between an aircraft and a target spacecraft is avoided, and kinetic energy is absorbed and converted into elastic potential energy to dissipate impact energy during collision contact. Therefore, the device can adapt to complex surface characteristics, has high efficiency, can effectively solve the key problems of smooth contact and stable landing of small aircrafts. In the invention, the six buffer energy-absorbing legs are uniformly distributed in the circumferential direction of a device placing plate (I); wherein the buffering and energy-absorbing legs achieve buffering and shock absorption through torsional springs and one-way bearings, rebound is avoided.The six-leg structure is adopted to increase the buffering load capacity, the buffering device can meet the requirement for non-forward collision contact buffering, and on the basis, the feet connected through the ball pairs have multiple degrees of freedom and can adapt to the irregular surface of a target object. The buffer device has universality and can provide application prospects and reference for buffering and shock absorption in other fields.

The invention belongs to the technical field of photovoltaic materials, and particularly relates to a photovoltaic module panel, a preparation method thereof and a photovoltaic module. The preparationmethod of the panel comprises the steps of carrying out activating treatment on a base material; coating one surface of the activated base material with a fluorine coating on, and coating the other surface of the activated base material with a polyester coating; and depositing a barrier layer on the surface of the polyester coating by adopting a film coating process. The photovoltaic module panelprovided by the invention does not comprise a bonding layer, so that the number of layers is reduced, the cost is reduced, the problems that the bonding force between functional layers is poor and the use requirements cannot be met are solved, and the heat dissipation capability of the module is improved at the same time.

The invention provides an automatic gearbox gear shifting method, device and equipment and a storage medium. The method comprises the steps that the target air pressure of the environment where a target vehicle is located is obtained, if the target air pressure is lower than the preset air pressure, a preset automatic gearbox gear shifting point is corrected through a correction value of an automatic gearbox gear shifting point, and the target vehicle is subjected to gear shifting by using the corrected automatic gearbox gear shifting point. As the correction value of the automatic gearbox gear shifting point is the difference between the automatic gearbox gear shifting point under the pre-calculated target air pressure and the preset automatic gearbox gear shifting point, the correction value can well represent the change of the automatic gearbox gear shifting point under the target air pressure as compared with the preset automatic gearbox gear shifting point. According to the automatic gearbox gear shifting method, the situation that when the target vehicle is subjected to gear shifting through the corrected automatic gearbox gear shifting point, the performance of the whole vehicle is not reduced, and the automatic gearbox gear shifting method with environmental adaptability is achieved.

The invention belongs to the technical field of airplane ice prevention and removal, and relates to a short wave infrared type icing sensor. The icing sensor based on the short wave infrared type comprises a probe, a supporting rod and a base, wherein the probe is mounted on the base through the supporting rod. The probe comprises a probe body, an icing rod, a protective cover, light sources and detectors, the icing rod is transversely arranged in the end of the probe body, the detectors and the light sources are arranged on the periphery of the end, on the same plane, of the icing rod in a staggered mode, and the probe body and the protective cover are of a hollow structure. And the protective cover is sleeved on the end head of the probe main body and covers the setting position of the icing rod. The end of the probe body is provided with a connecting hole communicated with the surface of the end and the air guide valve, and the light source mounting hole is communicated with the through hole of the probe body to form an air flow injection channel. A special hot air entraining mode and a detection mode are adopted, ice can be detected, meanwhile, snow can be detected, and detection on the icing condition is more comprehensive and effective.