CN109900299B - Radio altimeter large-angle test system, unmanned aerial vehicle and implementation method - Google Patents
Radio altimeter large-angle test system, unmanned aerial vehicle and implementation method Download PDFInfo
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- CN109900299B CN109900299B CN201910191971.1A CN201910191971A CN109900299B CN 109900299 B CN109900299 B CN 109900299B CN 201910191971 A CN201910191971 A CN 201910191971A CN 109900299 B CN109900299 B CN 109900299B
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Abstract
The invention discloses a radio altimeter large-angle test system, an unmanned aerial vehicle and an implementation method thereof, wherein the system is provided with an angle locking shaft, a test platform is arranged on the angle locking shaft, a radio altimeter, a wireless data transmission radio station and a height recorder are arranged on the test platform, an antenna is arranged on the radio altimeter, the antenna and a horizontal plane have a certain included angle, the test system is arranged on the unmanned aerial vehicle, and the implementation method is also provided for realizing the normal operation of the test system, and the beneficial technical effects of the invention are that: can carry out angle modulation at ground to adjusting antenna, easy operation, the regulation precision is accurate, and the in-process angle that flies can not change, therefore can keep test data steady normal, has solved from taking off the stage to all data passbacks of appointed altitude record, has solved unmanned aerial vehicle and can't make the problem that the wide angle rolled in the air, reduces the flight degree of difficulty.
Description
Technical Field
The invention relates to a radio altimeter large-angle testing system, an unmanned aerial vehicle and an implementation method, and belongs to the technical field of wireless data transmission and aircrafts with rotors.
Background
At present, the signal return of the known test radio altimeter is realized by real-time data return of an airplane in the air. Under the large-angle test state, the flight attitude of the airplane is changed in the air, the roll is adjusted to change the flight angle, and data are returned. In addition, the aircraft cannot change the flight attitude immediately after taking off from the ground to reach a specific altitude, so that the data return of the altimeter from the ground starting stage cannot be tested, and no data exists in the stage.
Disclosure of Invention
The invention aims to provide a radio altimeter large-angle testing system, an unmanned aerial vehicle and an implementation method, which can enable an aerial vehicle to keep an angle to be tested for a long time in flight, correctly transmit test data to the ground and solve the defects in the prior art.
The invention is realized by adopting the following technical scheme:
the utility model provides a radio altimeter wide-angle test system, has an angle locking axle in the system install a test platform on the angle locking axle, test platform's effect is with aircraft fixed linking to each other be provided with radio altimeter, wireless digital radio and altitude record appearance on the test platform, the host computer of radio altimeter passes through high frequency cable conductor and altimeter flight record appearance electrical connection, install the antenna on the radio altimeter, the antenna has certain contained angle with the horizontal plane. The radio altimeter is used to collect data, the altitude recorder is used to store data, and the radio data transmission station is used to transmit data.
The angle locking axle is placed to test platform's below, settle radio altimeter antenna parallel at the angle locking epaxial, then the angle of the epaxial antenna of angle adjusting device adjustment angle locking, in order to reach the specified angle of the antenna that needs the test and ground, angle adjusting device includes angle square and a angular positioning ware of taking the breach, angular positioning ware links to each other with angle locking axle is fixed, the angle square is semi-circular, fixed mounting is on test platform, the scale interval of angle square is the arc, be used for the sign rotation angle, angle positioning ware's top has a breach.
Furthermore, an angle scale is arranged on the edge of the test platform, scales are arranged on the angle scale, and an alignment center corresponding to the scales is arranged on the fixed strip pipe.
Furthermore, an angle scale is installed on the edge of the test platform, scales are arranged on the angle scale, and an alignment center corresponding to the scales is arranged on the angle locking shaft.
Furthermore, the angle locking shaft is a carbon fiber rod or a rod made of metal.
Further, the antenna forms an angle with the horizontal plane in the range of 0 to ± 50 °.
Further, the aircraft is an unmanned aerial vehicle.
Further, unmanned aerial vehicle is rotor unmanned aerial vehicle.
The utility model provides an unmanned aerial vehicle, its characterized in that installs the radio altimeter wide-angle test system on this unmanned aerial vehicle.
Further, unmanned aerial vehicle is rotor unmanned aerial vehicle.
A method for realizing a radio altimeter large-angle test by using an unmanned aerial vehicle is characterized by comprising the following steps:
the method comprises the following steps that firstly, a test platform is installed, an altimeter host, an altimeter flight recorder and an altimeter data transmission radio station are installed on the test platform in parallel through screws, and meanwhile, an angle adjusting device is vertically installed on the side face of the test platform;
an angle locking shaft is arranged below the test platform, a radio altimeter antenna is parallelly arranged on the angle locking shaft, then the angle of the antenna on the angle locking shaft is adjusted through an angle adjusting device to achieve the specified angle between the antenna to be tested and the ground, the angle adjusting device comprises an angle ruler and an angle positioner with a notch, the angle positioner is fixedly connected with the angle locking shaft, the angle ruler is semicircular and fixedly arranged on the test platform, the scale value of the angle ruler is arc-shaped and used for representing the rotating angle, and the top end of the angle positioner is provided with the notch;
fixing the angle locking shaft on a platform through a buckle and a fixing screw, arranging the platform at the center of the angle locking shaft, keeping a distance of 40 cm from two ends of a rod to the center of the platform, and respectively arranging two antennas of the radio altimeter at antenna arrangement positions at two ends of the angle locking shaft;
step three, installing the test platform under the rotor unmanned aerial vehicle in parallel through a connecting rod and a fixing screw;
and step four, electrifying for testing, wherein the radio altimeter host is connected with the altimeter flight recorder through a high-frequency cable for power supply, and the radio altimeter receiving and transmitting antenna is connected with the host. The unmanned aerial vehicle is electrified and flies.
The beneficial technical effects of the invention are as follows: the antenna is adjusted in advance by the unmanned aerial vehicle on the ground, the angle needs to be tested, the difficulty that the flying posture of the unmanned aerial vehicle is difficult to change after the unmanned aerial vehicle is lifted off is avoided, the operation of adjusting the angle of the antenna on the ground is simple, and the adjusting precision is accurate.
Secondly, the test platform level is settled under unmanned aerial vehicle, and all testing arrangement flight in-process remain stable, and the in-process angle that flies can not change, therefore can keep test data steady normal.
And thirdly, all data return from the takeoff phase to the specified height can be recorded.
Fourthly, the problem that the unmanned aerial vehicle cannot roll at a large angle in the air can be solved, and the flying difficulty is reduced.
Drawings
Fig. 1 is an appearance view of an external test system of an unmanned aerial vehicle.
Fig. 2 is an overall structural diagram of a radio altimeter large-angle test system.
Fig. 3 is an exploded structure diagram of a radio altimeter large-angle test system.
Fig. 4 is a schematic view of the construction of the angle ruler and the angle positioner.
Detailed Description
The invention will be better understood by the following description of embodiments thereof, but the applicant's specific embodiments are not intended to limit the invention to the particular embodiments shown, and any changes in the definition of parts or features and/or in the form of a whole structure without substantial changes should be considered as the scope of protection defined by the technical aspects of the invention.
Description of reference numerals: the device comprises an angle locking shaft 1, an angle ruler 2, a wood board 3 (used for connecting an altimeter antenna), a connector 4 (used for connecting the angle locking shaft 1 and the wood board connected with the altimeter antenna), a test platform 5 (used for placing a radio altimeter and a radio altimeter data recorder), a radio altimeter 6, a radio altimeter data recorder 7 and an angle positioner 8
As shown in fig. 1 to 3, a test platform 5 is arranged under an aircraft (unmanned aerial vehicle), and a radio altimeter 6, a radio altimeter data recorder 7, an altimeter data transmission station and an angle adjusting device are integrated on the test platform 5. The radio altimeter 6 collects data by using an antenna mounted thereon, and the radio altimeter data recorder 7 is used for storing data, which corresponds to a database, and a radio data transmission station is used for transmitting data. In this embodiment, the angle locking shaft 1 is placed below the testing platform 5, the antenna of the radio altimeter is parallelly placed on the angle locking shaft 1, and then the angle of the antenna on the angle locking shaft 1 is adjusted by the angle adjusting device, so as to achieve the specified angle (angle range 0 to ± 50 °) between the antenna to be tested and the ground. The angle adjusting device comprises an angle ruler 2 and an angle positioner 8 with a notch, and the angle positioner 8 is fixedly connected with the angle locking shaft 1. The angle ruler 2 is semicircular and is fixedly installed on the test platform 5, and the scale value of the angle ruler 2 is arc-shaped and is used for representing the rotation angle. The top end of the angle positioner 8 is provided with a notch, because the angle positioner is fixedly connected with the angle locking shaft 1, relative displacement and relative rotation do not occur between the angle positioner and the angle locking shaft 1, when the notch and the angle ruler 2 are utilized to carry out angle positioning, the angle positioner 8 and the angle locking shaft 1 synchronously rotate, the angle locking shaft 1 drives the antenna of the radio altimeter 6 fixedly arranged on the angle locking shaft to synchronously rotate, meanwhile, the angle ruler 2 fixed on the test platform and the angle positioner 8 relatively rotate, thus, the notch of the angle positioner 8 is aligned with the corresponding scale of the angle ruler 2 by adjusting the angle ruler 2 and the angle positioner 8, the purpose of accurately and quantitatively adjusting the angle of the antenna on the angle locking shaft can be achieved, the notch of the angle positioner 8 is actually an alignment center, and the accurate control of the angle between the antenna and the horizontal plane is realized through the alignment center (notch), the angle of the control antenna may range from 0 to ± 50 °.
In the installation process, the installation modes of all system components are respectively as follows:
unmanned aerial vehicle and test platform installation method: the test platform is connected with the unmanned aerial vehicle through four hollow aluminum pipes additionally arranged.
The installation method of the recorder and the altimeter on the test platform comprises the following steps:
and fixing the recorder and the height gauge on the wood plate of the test platform in parallel by using a binding belt.
The antenna installation method on the test platform comprises the following steps:
an angle locking shaft is used and directly fixed on a wood board through screws, and two test antennas are respectively fixed on the wood board at two ends of the angle locking shaft.
In the actual test process, when the unmanned aerial vehicle has not taken off, namely the angle of the antenna to be tested is adjusted on the ground, the test platform climbs to the designated height from the ground along with the unmanned aerial vehicle, so that the data returned by all signals from the ground to the designated height can be recorded. Under the condition that the invention is not adopted in the prior art, if altimeter data is transmitted back when a large angle is to be tested, the unmanned aerial vehicle needs to adjust the angle in real time in the air, and is influenced by external environments such as climate and the like and unmanned aerial vehicle power, the unmanned aerial vehicle cannot prepare to keep the angle to be tested for a long time, and the data accuracy is only 50%. After the technical scheme of the invention is used, the unmanned aerial vehicle normally takes off to the test height through the preset angle, the angle does not need to be adjusted in real time in the air, the unmanned aerial vehicle keeps a normal posture, and the data return accuracy rate reaches 98%.
The present invention may, of course, be carried out in other various embodiments, and various modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a radio altimeter wide-angle test system, has an angle locking axle in the system install a test platform on the angle locking axle, test platform and aircraft are fixed to be connected test platform is last to be provided with radio altimeter, wireless data radio station and height record appearance, the host computer of radio altimeter passes through high frequency cable conductor and altimeter flight record appearance electrical connection, install the antenna on the radio altimeter, the antenna has certain contained angle with the horizontal plane, its characterized in that:
the angle locking axle is placed to test platform's below, settle radio altimeter antenna parallel at the angle locking epaxial, then the angle through the epaxial antenna of angle adjusting device angle of adjustment locking, in order to reach the specified angle of the antenna that needs the test and ground, angle adjusting device includes angle square and a angular positioning ware of taking the breach, angular positioning ware links to each other with the angle locking axle is fixed, the angle square is semi-circular, fixed mounting is on test platform, the scale interval of angle square is the arc, be used for the sign rotation angle, the top of angular positioning ware has a breach.
2. The radio altimeter wide-angle test system of claim 1, wherein an angle scale is mounted on the edge of the test platform, a scale is arranged on the angle scale, and an alignment center corresponding to the scale is arranged on the fixed strip tube.
3. The radio altimeter wide-angle testing system of claim 1, wherein the angle locking shaft is a carbon fiber rod.
4. The radio altimeter wide-angle test system of claim 1, wherein the angle formed by the antenna and the horizontal plane is in the range of 0 to ± 50 °.
5. The radio altimeter wide-angle test system of claim 1, wherein the aircraft is a drone.
6. The radio altimeter wide-angle test system of claim 5, wherein the drone is a rotorcraft.
7. An unmanned aerial vehicle, characterized in that, install the radio altimeter wide-angle test system as claimed in claim 1 on this unmanned aerial vehicle.
8. The drone of claim 7, wherein the drone is a rotary wing drone.
9. A method for realizing a radio altimeter large-angle test by using an unmanned aerial vehicle is characterized by comprising the following steps:
the method comprises the following steps that firstly, a test platform is installed, an altimeter host, an altimeter flight recorder and an altimeter data transmission radio station are installed on the test platform in parallel through screws, and meanwhile, an angle adjusting device is vertically installed on the side face of the test platform;
an angle locking shaft is arranged below the test platform, a radio altimeter antenna is parallelly arranged on the angle locking shaft, then the angle of the antenna on the angle locking shaft is adjusted through an angle adjusting device to achieve the specified angle between the antenna to be tested and the ground, the angle adjusting device comprises an angle ruler and an angle positioner with a notch, the angle positioner is fixedly connected with the angle locking shaft, the angle ruler is semicircular and fixedly arranged on the test platform, the scale value of the angle ruler is arc-shaped and used for representing the rotating angle, and the top end of the angle positioner is provided with the notch;
fixing the angle locking shaft on a platform through a buckle and a fixing screw, placing the platform at the center of the angle locking shaft, keeping a distance of 40 cm from two ends of a rod to the center of the platform, and respectively placing two antennas of the radio altimeter at the antenna placing positions at two ends of the angle locking shaft;
step three, installing the test platform under the rotor unmanned aerial vehicle in parallel through a connecting rod and a fixing screw;
and step four, electrifying for testing, connecting the radio altimeter host with the altimeter flight recorder through a high-frequency cable for power supply, connecting the radio altimeter receiving and transmitting antenna with the host, and electrifying and flying the unmanned aerial vehicle.
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| CN201910191971.1A CN109900299B (en) | 2019-03-14 | 2019-03-14 | Radio altimeter large-angle test system, unmanned aerial vehicle and implementation method |
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| CN201910191971.1A CN109900299B (en) | 2019-03-14 | 2019-03-14 | Radio altimeter large-angle test system, unmanned aerial vehicle and implementation method |
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| CN109900299B true CN109900299B (en) | 2022-09-23 |
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| CN111238341B (en) * | 2020-01-19 | 2022-01-07 | 国网山东省电力公司济南供电公司 | Utilize unmanned aerial vehicle to carry out remote control's line-to-line distance measuring device |
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