CN215599372U - Device for evaluating target decoy interference effect of low-slow small unmanned aerial vehicle - Google Patents
Device for evaluating target decoy interference effect of low-slow small unmanned aerial vehicle Download PDFInfo
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Abstract
The utility model relates to the technical field of unmanned aerial vehicles, in particular to a device for evaluating the target decoy interference effect of a low-speed small unmanned aerial vehicle, which comprises the following components: the system comprises a navigation decoy device for inducing the low-slow small unmanned aerial vehicle to be positioned according to the real GNSS signal emission decoy track data of the low-slow small unmanned aerial vehicle, a measuring robot for carrying out dynamic data acquisition on the track of the low-slow small unmanned aerial vehicle, and an upper computer which is connected with the navigation decoy device and the measuring robot and is used for generating control instructions of the navigation decoy device and the measuring robot according to time signals; and the upper computer receives the dynamic data fed back by the measuring robot and the decoy track data of the navigation decoy equipment and stores and analyzes the data. The method fully considers the characteristics of the low-speed small unmanned aerial vehicle, realizes the estimation of the decoy interference effect by utilizing the measuring robot to automatically track and measure the dynamic unmanned aerial vehicle target with high precision by a non-satellite positioning means, and can be suitable for the estimation test of different decoy interference scenes.
Description
Technical Field
The utility model relates to the technical field of unmanned aerial vehicles, in particular to a device for evaluating target decoy interference effect of a low-speed small unmanned aerial vehicle.
Background
The low-slow small unmanned aerial vehicle is an aerial vehicle with the flying height of below 1000 meters (low altitude), the flying speed of less than 200km/s (slow speed) and the reflecting area of less than 2 square meters (small size). With the technical progress, the low-slow small unmanned aerial vehicle plays more and more important roles in the aspects of military application, aerial surveying and mapping, emergency rescue and relief, power inspection, agricultural plant protection and the like, but the low-slow small unmanned aerial vehicle also has many hazards and hidden dangers: hidden danger, low-speed small unmanned vehicles are generally difficult to detect, discover and track, and meanwhile, low in cost is easy to become a tool for lawbreakers and terrorists. For example, grenades are often thrown from the air with consumer-grade drones; the flight safety is ensured, once the low-speed small unmanned aerial vehicle enters the air above facilities such as an airport and the like due to intentional or unintentional reasons, the flight safety can be endangered if the unmanned aerial vehicle is not disposed in time; military security, overseas lawless persons often utilize the aircraft to take photos and take pictures of important military facilities; personal infringement, which is also frequently reported, is snooped on personal privacy by using low-speed small unmanned aerial vehicles. For this reason, appropriate management and control are required for low-speed small unmanned aerial vehicles. The technology utilizes the reality that the low-slow small unmanned aerial vehicle usually depends on GNSS (Global Navigation Satellite System) to realize Navigation and positioning, and induces the unmanned aerial vehicle to obtain wrong positioning information by transmitting false signals which are the same as or similar to real GNSS signals and have stronger power, thereby realizing effective driving away of the unmanned aerial vehicle or successful decoy. Compared with other management and control technologies, the trap interference can take effect on all low and slow small targets in a certain airspace range at the same time, accurate control on the targets can be achieved, and a good management and control effect is achieved. However, different deception jamming devices have different deception effects even on the same type of low-slow small unmanned aerial vehicle due to differences in manufacturing processes, software design and the like. How to reasonably evaluate the low-slow small unmanned aerial vehicle target decoy interference effect has important effects on improving the performance of interference equipment and improving the target management and control precision.
In the existing deception jamming effect evaluation of the low-slow small unmanned aerial vehicle, a small multi-system GNSS receiver or other system GNSS receivers different from a deception target self-positioning system are loaded on a deception target, and then the deception jamming equipment is used for deceiving the deception target self-positioning system, so that the positioning result of the multi-system GNSS receiver is still correct and can be used as a standard to evaluate whether the deception target is successfully deceived according to a preset deception track and how the deception precision is; however, there is a requirement for the positioning system of the unmanned flying target itself, that is, the positioning system cannot be the same as the positioning system of the comparison standard receiver, and meanwhile, the deception jamming equipment cannot broadcast the system-wide jamming signal at the same time, otherwise, the receiver as the comparison standard is also tricked, and an accurate and reliable positioning result cannot be provided. In addition, the frequencies used by the main navigation systems overlap to some extent, and when a decoy disturbance is applied to one of the frequencies, the positioning result of other systems may be affected to some extent, so that the accuracy level of the comparison standard itself may be reduced. The land radar is also used for independently positioning the cheated target, and the positioning result is used as a standard to evaluate whether the cheated target is successfully cheated according to a preset cheating track and how the cheating precision is; however, to realize high-precision radar positioning, the technical parameters of the radar are required to be high, the cost is usually high, and the radar is difficult to obtain for common civil use, so that the application field is limited.
Disclosure of Invention
Therefore, the utility model provides a device for evaluating the target trapping interference effect of a low-slow small unmanned aerial vehicle, which fully considers the characteristics of low, slow and small low-slow small unmanned aerial vehicle targets, realizes the evaluation of the trapping interference effect by utilizing a measuring robot to automatically track and measure the dynamic unmanned aerial vehicle target with high precision by a non-satellite positioning means, and can be suitable for evaluation tests of different trapping interference scenes.
According to the design scheme provided by the utility model, the device for evaluating the target decoy interference effect of the low-speed small unmanned aerial vehicle comprises the following components: the system comprises a navigation decoy device for inducing the low-slow small unmanned aerial vehicle to be positioned according to the real GNSS signal emission decoy track data of the low-slow small unmanned aerial vehicle, a measuring robot for carrying out dynamic data acquisition on the track of the low-slow small unmanned aerial vehicle, and an upper computer which is connected with the navigation decoy device and the measuring robot and is used for generating control instructions of the navigation decoy device and the measuring robot according to time signals; and the upper computer receives the dynamic data fed back by the measuring robot and the decoy track data of the navigation decoy equipment and stores and analyzes the data.
The omnidirectional prism is erected on the low-slow small unmanned aerial vehicle and used for dynamic data acquisition of the measuring robot.
As the device for evaluating the target decoy interference effect of the low-slow small unmanned aerial vehicle, further, a dynamic data acquisition field of the low-slow small unmanned aerial vehicle is provided with a datum point and a datum direction point which are used for measuring the positioning of a robot, have known coordinate values and are marked with point marks.
As the device for evaluating the target decoy interference effect of the low-slow small unmanned aerial vehicle, at least 1 datum point is arranged; the number of the reference direction points is 2.
As the device for evaluating the target decoy interference effect of the low-speed small unmanned aerial vehicle, further, the measuring robot adopts an industrial automatic measuring robot with an automatic target recognition function.
The utility model has the beneficial effects that:
the unmanned aerial vehicle trapping effect evaluation system is simple and compact in structure, scientific and reasonable in design, and aiming at the characteristics of low-speed small unmanned aerial vehicles, the measuring robot is used for realizing the unmanned aerial vehicle trapping effect evaluation through a non-satellite positioning means; meanwhile, in order to ensure the tracking effect, a simple omnidirectional prism can be carried on the unmanned aerial vehicle, the requirement on the unmanned aerial vehicle is low, and the omnidirectional prism can be more simply popularized and applied to unmanned aerial vehicles of different models; the method provides a simple and feasible technical approach for evaluating the trapping effect of the low-speed small unmanned aerial vehicle, has important significance for improving the performance of interference equipment and improving the target control precision, and has a better application prospect.
Description of the drawings:
FIG. 1 is a schematic structural diagram of an apparatus for target spoofing interference effect evaluation of a low-speed small unmanned aerial vehicle in an embodiment;
fig. 2 is a schematic diagram of the operation principle of the device for evaluating the effect of the spoofing interference in the embodiment.
The specific implementation mode is as follows:
the present invention will be described in further detail below with reference to the accompanying drawings and technical solutions, and embodiments of the present invention will be described in detail by way of preferred examples, but the embodiments of the present invention are not limited thereto.
An embodiment of the present invention, referring to fig. 1, provides an apparatus for evaluating target decoy interference effect of a small low-speed unmanned aerial vehicle, including: the system comprises a navigation decoy device for inducing the low-slow small unmanned aerial vehicle to be positioned according to the real GNSS signal emission decoy track data of the low-slow small unmanned aerial vehicle, a measuring robot for carrying out dynamic data acquisition on the track of the low-slow small unmanned aerial vehicle, and an upper computer which is connected with the navigation decoy device and the measuring robot and is used for generating control instructions of the navigation decoy device and the measuring robot according to time signals; and the upper computer receives the dynamic data fed back by the measuring robot and the decoy track data of the navigation decoy equipment and stores and analyzes the data. The characteristics of low, slow and small unmanned flying targets are fully considered, the trap interference effect evaluation is realized by utilizing the measuring robot to automatically track and measure the dynamic unmanned aircraft target in high precision through a non-satellite positioning means, and the method is suitable for evaluation tests of different trap interference scenes.
The omnidirectional prism is erected on the low-slow small unmanned aerial vehicle and used for dynamic data acquisition of the measuring robot. Further, the measuring robot adopts an industrial automatic measuring robot with an automatic target recognition function.
The measuring robot can realize automatic tracking and high-precision measurement on the dynamic target within a certain range (within a distance of 1000km and low); considering the tracking ability of the automatic measuring robot, the moving speed of the dynamic target is not too fast (slow), and meanwhile, in order to ensure the tracking effect, only a common light-weight (small) omnidirectional prism needs to be erected on the dynamic target. The omnidirectional prism is used as the sighting target of the automatic measuring robot, and other types of prisms can be used as the sighting target, which is an alternative. The 360-degree omnidirectional prism can be also switched through the structural part, can be adapted to different types of unmanned aerial vehicles, effectively controls the test cost, can test different types of unmanned aerial vehicles, and has a better application prospect.
Further, as shown in fig. 2, according to the actual application requirements, a Leica TDA5005 switzerland industrial automatic measurement robot may be selected to meet the automatic target recognition function (ATR-automatic target recognition), and the automatic target finding, automatic accurate target aiming, automatic target locking and automatic target tracking may be implemented by a motor and a CCD camera built in the apparatus. Leica TDA5005 has a range accuracy of 5mm +2mm K in tracking mode, K is an observation distance (unit: km) and an angle accuracy of 0.5 ". And the upper computer is used for generating a time synchronization and measurement control instruction part to complete the time synchronization between the GNSS time and the dynamic tracking and detection control part, controlling the tracking and detection control according to the time synchronization result, and sending out a tracking and data acquisition instruction according to the set time so as to accurately determine the accurate time of dynamic data acquisition. The measuring robot control host machine performs dynamic tracking control and data acquisition and storage, and completes functions of relevant control instruction issuing, data storage and the like. The power supply/power source part can adopt a battery pack to supply power for related equipment.
As the device for evaluating the target decoy interference effect of the low-slow small unmanned aerial vehicle, further, a dynamic data acquisition field of the low-slow small unmanned aerial vehicle is provided with a datum point and a datum direction point which are used for measuring the positioning of a robot, have known coordinate values and are marked with point marks.
The reference point can be used as a reference point for field measurement, has high-precision known coordinate values, good point position marks and a good observation environment, and is convenient for erecting a measuring robot host and other related equipment. Furthermore, the measuring robot performs target positioning by simultaneously performing angle measurement and distance measurement, and at least 1 detection reference point is required. The reference direction point is a reference point establishing a known direction, is not less than 100 meters away from the reference point, has high-precision known coordinate values (or known azimuth angle values from the reference point to the point), a perfect point position mark and good measurement environment and conditions. In order to facilitate the measurement and check of the main machine of the measuring robot, 2 reference direction points are generally set. The field area can be an open area within a proper distance from the detection datum point, and the unmanned aerial vehicle platform can conveniently develop dynamic experiments.
The term "and/or" herein means that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various changes and modifications may be made to the specific embodiments described above and various combinations of the technical features and structures proposed by the present invention may be made without departing from the concept of the present invention, and the scope of the present invention is defined by the appended claims. The foregoing description of specific exemplary embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (5)
1. An apparatus for target decoy jamming effect assessment for low-slow small unmanned aerial vehicles, comprising: the navigation decoy device for inducing the low and slow small unmanned aerial vehicle to be positioned according to the data of the decoy track emitted by the real GNSS signal of the low and slow small unmanned aerial vehicle is characterized by further comprising: the measuring robot is used for carrying out dynamic data acquisition on the track of the low-slow small unmanned aerial vehicle, and the upper computer is connected with the navigation decoy equipment and the measuring robot and is used for generating control instructions of the navigation decoy equipment and the measuring robot according to time signals; and the upper computer receives the dynamic data fed back by the measuring robot and the decoy track data of the navigation decoy equipment and stores and analyzes the data.
2. The device for evaluating the target decoy interference effect of the low-slow small unmanned aerial vehicle as claimed in claim 1, wherein an omnidirectional prism for dynamic data acquisition of a measuring robot is erected on the low-slow small unmanned aerial vehicle.
3. The device for evaluating the target spoofing interference effect of the low and slow small unmanned aerial vehicle as claimed in claim 1 or 2, wherein the dynamic data acquisition field of the low and slow small unmanned aerial vehicle is provided with a datum point and a datum direction point which are used for measuring the positioning of the robot, the coordinate value of which is known and the point sign of which is marked.
4. The device for evaluating the target decoy interference effect of the low-slow small unmanned aerial vehicle according to claim 3, wherein the reference point is at least 1; the number of the reference direction points is 2.
5. The device for evaluating the target decoy interference effect of the low-speed small unmanned aerial vehicle according to claim 1, wherein the measuring robot is an industrial automatic measuring robot with an automatic target recognition function.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122161788.2U CN215599372U (en) | 2021-09-08 | 2021-09-08 | Device for evaluating target decoy interference effect of low-slow small unmanned aerial vehicle |
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| CN202122161788.2U CN215599372U (en) | 2021-09-08 | 2021-09-08 | Device for evaluating target decoy interference effect of low-slow small unmanned aerial vehicle |
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Address after: 450000 Science Avenue 62, Zhengzhou High-tech Zone, Henan Province Patentee after: Information Engineering University of the Chinese People's Liberation Army Cyberspace Force Country or region after: China Address before: No. 62 Science Avenue, High tech Zone, Zhengzhou City, Henan Province Patentee before: Information Engineering University of Strategic Support Force,PLA Country or region before: China |