CN112193434A - Environment simulation vibration test system under unmanned aerial vehicle real flight state - Google Patents
Environment simulation vibration test system under unmanned aerial vehicle real flight state Download PDFInfo
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- CN112193434A CN112193434A CN202011052397.0A CN202011052397A CN112193434A CN 112193434 A CN112193434 A CN 112193434A CN 202011052397 A CN202011052397 A CN 202011052397A CN 112193434 A CN112193434 A CN 112193434A
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- simulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
Abstract
The invention relates to an environment simulation vibration test system of an unmanned aerial vehicle in a real-flight state, which comprises the unmanned aerial vehicle, a simulation chamber, an environment control system and a data processing device, wherein the environment control system comprises a controller, a temperature simulation device for adjusting the temperature in the simulation chamber, a humidity simulation device for adjusting the humidity in the simulation chamber and a wind power simulation device for adjusting the wind power flow direction and the size in the simulation chamber under the control of the controller. By adopting the scheme, the environment simulation vibration test system for the unmanned aerial vehicle in the real-flight state accurately simulates the real environment so as to obtain accurate test data.
Description
Technical Field
The invention relates to the field of unmanned aerial vehicles, in particular to an environment simulation vibration test system of an unmanned aerial vehicle in a real-flight state.
Background
In recent years, the multi-rotor unmanned aerial vehicle has the characteristics of excellent operating performance, vertical take-off and landing, hovering and ultra-low altitude flight, and is widely applied to the fields of aerial photography, agricultural plant protection, security and protection emergency and the like. Many rotor unmanned aerial vehicle's vibration characteristic is one of the important index of evaluation unmanned aerial vehicle's complete machine performance, all can produce adverse effect to precision, plant protection unmanned aerial vehicle pesticide spraying homogeneity etc. of aerial photography unmanned aerial vehicle formation of image. Therefore, vibration testing for multi-rotor drones is an essential step in the study of the mechanical performance of drones.
At present, the vibration test for the unmanned aerial vehicle has the following defects:
1) a complete test system is not formed, and most tests are temporary test platforms built by using the existing equipment;
2) most vibration tests are completed in a static state, and the obtained data cannot accurately reflect the vibration response of the unmanned aerial vehicle in a real-flight state;
3) complicated environmental factors such as wind power, temperature and humidity influence on vibration of the unmanned aerial vehicle cannot be simulated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the environment simulation vibration test system for the unmanned aerial vehicle in the real-flight state, which can accurately simulate the real environment so as to obtain accurate test data.
In order to achieve the purpose, the invention provides the following technical scheme: comprises an unmanned aerial vehicle, a simulation chamber, an environment control system and a data processing device,
an unmanned aerial vehicle having an inertial measurement unit;
the simulation chamber is closed and used for the unmanned aerial vehicle to fly;
the environment control system comprises a controller, a temperature simulation device for regulating the temperature in the simulation cavity, a humidity simulation device for regulating the humidity in the simulation cavity and a wind power simulation device for regulating the wind power flow direction and the wind power flow size in the simulation cavity, wherein the temperature simulation device, the humidity simulation device and the wind power simulation device are controlled by the controller;
and the data processing device obtains the acceleration data of the vibration signal from the inertia measuring unit in a wireless transmission mode.
Through adopting above-mentioned technical scheme, under the unified control of controller, temperature analogue means adjusts the temperature in the simulation cavity, and humidity analogue means adjusts the humidity in the simulation cavity, and wind-force analogue means simulates wind speed and wind direction in the cavity to simulate a real unmanned aerial vehicle flight environment in the simulation cavity, thereby make data processing device from the data that inertial measurement unit obtained more accurate, more have actual reference value.
The invention is further configured to: the wind power simulation device comprises a wind speed and direction detector and a multi-gear steering fan, the wind speed and direction detector detects the wind speed and the wind direction in the simulation chamber and feeds the wind speed and the wind direction back to the controller, and the controller controls the wind power of the multi-gear steering fan to be in the required wind speed and wind direction according to the wind speed and the wind direction in the simulation chamber.
By adopting the technical scheme, the wind speed and the wind direction are adjusted by the multi-gear steering fan, and dynamic adjustment is performed according to the data detected by wind direction detection, so that the wind speed and the wind direction are maintained in dynamic balance, and the simulation effect is better.
The invention is further configured to: the wind power simulation device also comprises a rodless cylinder for driving the multi-gear steering fan to move vertically.
By adopting the technical scheme, the rodless cylinder is additionally arranged, so that the multi-gear steering fan has the function of vertical position adjustment, and the adjusting range of a single multi-gear steering fan is enlarged.
The invention is further configured to: the cross section of the simulation chamber is rectangular, the number of the multi-gear steering fans is four, the multi-gear steering fans are respectively distributed at each corner of the rectangle, and the center of the transverse adjusting range of the multi-gear steering fans faces the center of the simulation chamber.
By adopting the technical scheme, the multi-gear steering fans are positioned at each corner of the rectangle of the simulation chamber, so that the multi-gear steering fans are more uniformly distributed, meanwhile, the airflow adjusting ranges of the multi-gear steering fans are combined to comprehensively radiate each position of the simulation chamber, and the center of the transverse adjusting range of the multi-gear steering fans faces the center of the simulation chamber, so that the adjusting function is more comprehensive, and the simulation effect is better.
The invention is further configured to: the temperature simulation device comprises a temperature sensor, a heating mechanism and a cooling mechanism, wherein the temperature sensor detects the temperature in the simulation cavity and feeds the temperature back to the controller, and the controller controls the heating mechanism and the cooling mechanism to be increased or decreased to the required temperature according to the temperature in the simulation cavity, so that the temperature in the simulation cavity is maintained in dynamic balance.
Through adopting above-mentioned technical scheme, increase indoor temperature by heating mechanism, reduce indoor temperature by cooling body, carry out dynamic adjustment according to the data that temperature sensor detected to make the temperature maintain at dynamic balance, thereby make the simulation effect better.
The invention is further configured to: the heating mechanism is an air electric heating box.
Through adopting above-mentioned technical scheme, select the electric heating case as heating mechanism, can be fast, accurate to indoor heating.
The invention is further configured to: the cooling mechanism is a nano-flow cooling device.
By adopting the technical scheme, the nano-flow cooling device is selected as the cooling mechanism, so that the indoor temperature can be quickly and accurately reduced.
The invention is further configured to: the humidity simulation device comprises a humidity sensor and a humidifying mechanism, the humidity sensor detects the humidity in the simulation chamber and feeds back the humidity to the controller, and the controller controls the heating mechanism and the humidifying mechanism to rise or fall to the required humidity according to the humidity in the simulation chamber, so that the humidity in the simulation chamber is maintained in dynamic balance.
Through adopting above-mentioned technical scheme, increase indoor humidity by humidification mechanism to rationally utilize temperature analogue means's heating mechanism to reduce indoor temperature, carry out dynamic adjustment according to the data that humidity transducer detected, thereby make humidity maintain at dynamic balance, thereby make the simulation effect better, the structure is more retrencied.
The invention is further configured to: the humidifying mechanism is an ultrasonic atomization humidifier.
Through adopting above-mentioned technical scheme, ultrasonic atomization humidifier has advantages such as humidification efficiency is high, small, the humidification is even, can accurately increase the humidity in the simulation chamber to obtain accurate simulation effect.
Drawings
FIG. 1 is a functional block diagram of an embodiment of the present invention;
FIG. 2 is a first perspective view of an embodiment of the present invention;
FIG. 3 is a second perspective view of the present invention;
FIG. 4 is an enlarged view of A in FIG. 3;
fig. 5 is a perspective view of an unmanned aerial vehicle in an embodiment of the present invention;
fig. 6 is a perspective view of a data processing apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in FIGS. 1-3, the invention discloses an environment simulation vibration test system of an unmanned aerial vehicle in a real flight state, which comprises the unmanned aerial vehicle, a simulation chamber, an environment control system and a data processing device,
the unmanned aerial vehicle a is provided with an inertia measurement unit, and is provided with a flight control system a1 and a wireless transmitting module a 2;
the simulation chamber b is closed and used for the unmanned aerial vehicle a to fly, and the chamber wall of the simulation chamber b, which is opposite to the data processing device d, is made of transparent materials, so that observation is facilitated;
the environment control system c comprises a controller 4, a temperature simulation device 1 for adjusting the temperature in the simulation chamber b, a humidity simulation device 2 for adjusting the humidity in the simulation chamber b and a wind power simulation device 3 for adjusting the wind power flow direction and the wind power size in the simulation chamber b, wherein the temperature simulation device 1, the humidity simulation device 2 and the wind power simulation device 3 are controlled by the controller 4;
data processing apparatus d, the acceleration data of vibration signal is obtained from inertia measuring unit department through the wireless transmission mode, data processing apparatus d generally is the computer, the computer is provided with constitutes information transmission complex wireless receiving module d1 with wireless transmitting module, the calculator is placed with unmanned aerial vehicle's remote controller together, the unified control of staff of being convenient for, under the unified control of controller, temperature analogue means 1 adjusts the temperature in simulation cavity b, humidity analogue means 2 adjusts the humidity in simulation cavity b, wind-force analogue means 3 simulates wind speed and wind direction in cavity b, thereby simulate a real unmanned aerial vehicle a flight environment in simulation cavity b, thereby make data processing apparatus d obtain from inertia measuring unit data more accurate, more have actual reference value.
The wind power simulation device 3 comprises a wind speed and direction detector and a multi-gear steering fan 31, the wind speed and direction detector detects the wind speed and the wind direction in the simulation chamber b and feeds the wind speed and the wind direction back to the controller, the controller controls the wind power of the multi-gear steering fan 31 and adjusts the wind speed and the wind direction to the required wind speed and the required wind direction in the simulation chamber b according to the wind speed and the wind direction in the simulation chamber b, the wind speed and the wind direction are adjusted by the multi-gear steering fan 31, dynamic adjustment is carried out according to the data detected by wind direction detection, the wind speed and the wind direction are maintained in dynamic balance, the simulation effect is better, and the wind speed.
The wind power simulation device 3 further comprises a rodless cylinder 32 for driving the multi-gear steering fan 31 to vertically move, the rodless cylinder 32 is additionally arranged, the multi-gear steering fan 31 has a vertical position adjusting function, the adjusting range of a single multi-gear steering fan 31 is increased, the rodless cylinder 32 comprises a vertically arranged cylinder slide rail 321 and a slide seat 322 sliding along the cylinder slide rail 321, and the slide seat 322 is provided with a mounting bracket 323 for mounting the multi-gear steering fan 31.
The section of the simulation chamber b is rectangular, the number of the multi-gear steering fans 31 is four and are respectively distributed at each corner of the rectangle, the center of the transverse adjusting range of the multi-gear steering fans 31 faces the center of the simulation chamber b, the multi-gear steering fans 31 are positioned at each corner of the rectangle of the simulation chamber b, so that the multi-gear steering fans 31 are more uniformly distributed, meanwhile, the airflow adjusting ranges of the multi-gear steering fans 31 are combined to comprehensively radiate each part of the simulation chamber b, and the center of the transverse adjusting range of the multi-gear steering fans 31 faces the center of the simulation chamber b, so that the adjusting function is more comprehensive, and the simulation effect is better.
Temperature simulation device 1 includes temperature sensor, heating mechanism 11 and cooling body 12, temperature sensor detects temperature feedback in the simulation cavity b and gives the controller, the controller rises or reduces to required temperature according to temperature control heating mechanism 11 and cooling body 12 in the simulation cavity b, make the temperature maintain a dynamic balance in the simulation cavity b, increase indoor temperature by heating mechanism 11, reduce indoor temperature by cooling body 12, carry out dynamic adjustment according to the data that temperature sensor detected, thereby make the temperature maintain dynamic balance, thereby make the simulation better, temperature sensor integrates in the controller.
The heating mechanism 11 is an air electric heating box, and the electric heating box is selected as the heating mechanism 11, so that the indoor temperature can be quickly and accurately increased.
The cooling mechanism 12 is a nano-flow cooling device, and the nano-flow cooling device is selected as the cooling mechanism 12, so that the indoor temperature can be quickly and accurately reduced.
Humidity analogue means 2 includes humidity transducer and humidification mechanism 21, humidity transducer detects humidity feedback to the controller in the simulation cavity b, the controller risees or reduces to required humidity according to control heating mechanism 11 and humidification mechanism 21 in the simulation cavity b, make the humidity maintain a dynamic balance in the simulation cavity b, increase indoor humidity by humidification mechanism 21, and rationally utilize heating mechanism 11 of temperature analogue means 1 to reduce indoor temperature, carry out dynamic adjustment according to the data that humidity transducer detected, thereby make humidity maintain dynamic balance, thereby make the simulation effect better, the structure is more retrencied, humidity transducer integrates in the controller.
In addition, the controller can adopt a unified controller and also adopt an independent wind speed and direction controller, a humidity controller and a temperature controller.
The vibration measurement of unmanned aerial vehicle a adopts wireless measurement's mode, utilize many rotor unmanned aerial vehicle a to fly the inertia measurement module of accuse module from the area and measure unmanned aerial vehicle a's vibration signal, give the acceleration data transmission of measuring and fly the accuse and carry out filtering processing, wireless emission module a2 through unmanned aerial vehicle a sends acceleration data to wireless receiving module d1, send the computer realization unmanned aerial vehicle a vibration signal's collection to the realization, thereby realize under the environment of difference vibration signal's accurate measurement.
Claims (9)
1. The utility model provides an environment simulation vibration test system under unmanned aerial vehicle real flight state which characterized in that: comprises an unmanned aerial vehicle, a simulation chamber, an environment control system and a data processing device,
an unmanned aerial vehicle having an inertial measurement unit;
the simulation chamber is closed and used for the unmanned aerial vehicle to fly;
the environment control system comprises a controller, a temperature simulation device for regulating the temperature in the simulation cavity, a humidity simulation device for regulating the humidity in the simulation cavity and a wind power simulation device for regulating the wind power flow direction and the wind power flow size in the simulation cavity, wherein the temperature simulation device, the humidity simulation device and the wind power simulation device are controlled by the controller;
and the data processing device obtains the acceleration data of the vibration signal from the inertia measuring unit in a wireless transmission mode.
2. The environment simulation vibration test system of claim 1, wherein: the wind power simulation device comprises a wind speed and direction detector and a multi-gear steering fan, the wind speed and direction detector detects the wind speed and the wind direction in the simulation chamber and feeds the wind speed and the wind direction back to the controller, and the controller controls the wind power of the multi-gear steering fan to be in the required wind speed and wind direction according to the wind speed and the wind direction in the simulation chamber.
3. The environment simulation vibration test system of the unmanned aerial vehicle in the real flight state of claim 2, wherein: the wind power simulation device also comprises a rodless cylinder for driving the multi-gear steering fan to move vertically.
4. The environment simulation vibration test system of the unmanned aerial vehicle in the real flight state of claim 2, wherein: the cross section of the simulation chamber is rectangular, the number of the multi-gear steering fans is four, the multi-gear steering fans are respectively distributed at each corner of the rectangle, and the center of the transverse adjusting range of the multi-gear steering fans faces the center of the simulation chamber.
5. The environment simulation vibration test system of claim 1, wherein: the temperature simulation device comprises a temperature sensor, a heating mechanism and a cooling mechanism, wherein the temperature sensor detects the temperature in the simulation cavity and feeds the temperature back to the controller, and the controller controls the heating mechanism and the cooling mechanism to be increased or decreased to the required temperature according to the temperature in the simulation cavity, so that the temperature in the simulation cavity is maintained in dynamic balance.
6. The environment simulation vibration test system of claim 5, wherein: the heating mechanism is an air electric heating box.
7. The environment simulation vibration test system of claim 5, wherein: the cooling mechanism is a nano-flow cooling device.
8. The environment simulation vibration test system of claim 5, wherein: the humidity simulation device comprises a humidity sensor and a humidifying mechanism, the humidity sensor detects the humidity in the simulation chamber and feeds back the humidity to the controller, and the controller controls the heating mechanism and the humidifying mechanism to rise or fall to the required humidity according to the humidity in the simulation chamber, so that the humidity in the simulation chamber is maintained in dynamic balance.
9. The environment simulation vibration test system of claim 6, wherein: the humidifying mechanism is an ultrasonic atomization humidifier.
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| CN202011052397.0A CN112193434A (en) | 2020-09-29 | 2020-09-29 | Environment simulation vibration test system under unmanned aerial vehicle real flight state |
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| CN202011052397.0A CN112193434A (en) | 2020-09-29 | 2020-09-29 | Environment simulation vibration test system under unmanned aerial vehicle real flight state |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114325410A (en) * | 2021-11-22 | 2022-04-12 | 北京机电工程研究所 | Thermal vibration and electric combined test method for battery |
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