Detection system and detection method of direction-finding antenna

Abstract

The invention discloses a direction-finding antenna detection system and method, the detection system comprises a base frame, a rotary table assembly and a control assembly, the rotary table assembly comprises a driving part and a rotary table, the driving part is connected with the rotary table and is used for driving the rotary table to rotate, and the control assembly is used for controlling the rotary table to rotate. The rotary table is used for being connected with the direction-finding antenna, and the control assembly is connected with the rotary table assembly. The detection system is high in automation degree, high in detection efficiency and high in detection precision.

Description

Technical Field

[0001] The present invention relates to the technical field of direction-finding antenna detection, and in particular, to a detection system and a detection method for a direction-finding antenna. Background Art

[0002] A direction-finding antenna refers to a cylindrical antenna for detecting the real-time azimuth of flying objects such as unmanned aerial vehicles. The direction-finding antenna includes a plurality of antenna arrays arranged circumferentially. When a flying object is detected, the real-time azimuth of the flying object can be calculated by analyzing the differences in the signal intensities of the plurality of antenna arrays.

[0003] To ensure the accuracy of detection, it is necessary to detect the sensitivity of each antenna array in the direction-finding antenna. In the related art, the sensitivity detection of the direction-finding antenna is mainly manually completed by humans. Specifically, the direction-finding antenna is manually rotated by humans to adjust the positions of the antenna arrays relative to the target aircraft, so as to realize the separate detection of the sensitivity of each antenna array. Since this detection method requires manual adjustment of the azimuth of the direction-finding antenna, the detection efficiency is low, and the accuracy of manual rotation is relatively poor, and the precision is also low, which is difficult to meet the requirements of detection.

[0004] Therefore, how to provide a solution to overcome or alleviate the above defects is still a technical problem that those skilled in the art need to solve urgently. Summary of the Invention

[0005] The purpose of the present invention is to provide a detection system and a detection method for a direction-finding antenna, wherein the detection system has a high degree of automation, high detection efficiency, and high detection accuracy.

[0006] To solve the above technical problems, the present invention provides a detection system for a direction-finding antenna, including a base frame, a turntable assembly, and a control assembly. The turntable assembly includes a driving component and a rotating table. The driving component is connected to the rotating table and is used to drive the rotating table to rotate. The rotating table is used to be connected to the direction-finding antenna, and the control assembly is connected to the turntable assembly.

[0007] Optionally, the turntable assembly further includes a base, the driving component and the rotating table are both installed on the base, and the base is provided with a signal interface part, and the signal interface part is used to be connected to the control assembly.

[0008] Optionally, the turntable assembly further includes a first adapter component. One end of the first adapter component is connected to the base, and the other end of the first adapter component is connected to the base frame.

[0009] Optionally, the turntable assembly further includes a second adapter component. One end of the second adapter component is connected to the rotating table, and the other end of the second adapter component is used to connect to the direction-finding antenna.

[0010] Optionally, the second adapter component includes an outer cylinder part and an inner core part. The outer cylinder part is connected to the rotating table, and a part of the inner core part is inserted into the inside of the outer cylinder part. The inner core part is used to connect to the direction-finding antenna.

[0011] Optionally, the turntable assembly further includes an identification component and a sensor. The sensor is fixedly arranged, and the identification component is connected to the rotating table.

[0012] Optionally, the control assembly includes a control box, a host computer, a serial cable, and a control cable. The host computer is connected to the control box through the serial cable, and the control box is connected to the turntable assembly through the control cable.

[0013] Optionally, a driving module and a power module are arranged inside the control box. The driving module is connected to the control cable, and the control box is also provided with a control panel.

[0014] Optionally, the base frame includes a support rod and a plurality of leg rods mounted on the support rod. Each leg rod can rotate relative to the support rod to switch between a retracted state and an extended state.

[0015] The present invention also provides a detection method for a direction-finding antenna, which is applicable to the above-mentioned detection system for the direction-finding antenna. The detection method includes the following steps: Step S100, configure the detection system, install the direction-finding antenna on the rotating table, and set up a target aircraft. The direction-finding antenna includes N antenna arrays, where N≥2; Step S200, drive a to-be-detected antenna array of the direction-finding antenna to face the target aircraft through the rotation driving component; Step S300, obtain the sensitivity parameter of the antenna array; Step S400, determine whether the sensitivity parameter meets the set conditions. If not, execute the following step S500. If so, execute the following step S600; Step S500, output a detection unqualified prompt message; Step S600, determine whether all antenna arrays have been detected. If not, execute step S200. If so, execute the following step S700; Step S700, output a detection qualified prompt message.

[0016] In an embodiment of the present invention, the detection system includes a turntable assembly. The turntable assembly can automatically drive the rotating table to rotate under the drive and control of the control assembly, thereby realizing the automatic driving and rotation of the direction-finding antenna, so as to switch different antenna arrays in the direction-finding antenna for sensitivity detection. Compared with the related art, the detection system provided by the embodiment of the present invention has relatively less manual participation, relatively higher automation, relatively lower manual labor intensity, and relatively higher detection efficiency; moreover, both the detection accuracy and the accuracy can be relatively high, which can better meet the detection requirements of the direction-finding antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the detection principle of the direction-finding antenna;

[0018] Figure 2 is a schematic structural diagram of a detection system for a direction-finding antenna provided by an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of the turntable assembly;

[0020] Figure 4 is Figure 3 exploded view of;

[0021] Figure 5 is a connection structure diagram of the driving and rotating component, the rotating table and the base;

[0022] Figure 6 is a schematic structural diagram of the control assembly;

[0023] Figure 7 is a schematic structural diagram of the base frame;

[0024] Figure 8 is a schematic flow diagram of a detection method for a direction-finding antenna provided by an embodiment of the present invention.

[0025] Reference numerals:

[0026] 1000 - base frame; 1100 - support rod; 1200 - foot rod;

[0027] 2000 - turntable assembly; 2100 - driving and rotating component; 2200 - rotating table; 2300 - base; 2400 - signal interface part; 2500 - first adapter component; 2600 - second adapter component; 2610 - outer cylinder part; 2620 - inner core part; 2700 - identification component; 2800 - sensor;

[0028] 3000 - control assembly; 3100 - control box; 3110 - power cable; 3120 - control panel; 3200 - host computer; 3300 - serial cable; 3400 - control cable;

[0029] 4000 - Direction - finding antenna; 4100 - Antenna array;

[0030] 5000 - Target drone. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the description of the embodiments of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0033] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connected" can be a detachable connection or a non - detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0034] In the description of the embodiments of the present invention, the terms "comprising", "including" or any other variant thereof are intended to cover non - exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0035] Please refer to Figure 1 , Figure 1 which is the detection schematic diagram of the direction - finding antenna.

[0036] As Figure 1 shown, the direction - finding antenna 4000 can be an octagonal array antenna, including eight antenna arrays 4100 arranged circumferentially. The target drone 5000 can specifically be a flying object such as a drone, and the target drone 5000 can be arranged on the radial side of the direction - finding antenna 4000.

[0037] During specific testing, the direction-finding antenna 4000 can be controlled to rotate so that the antenna array 4100 of the direction-finding antenna 4000 can face the target aircraft 5000 directly, thereby detecting the sensitivity of the antenna array 4100. After the sensitivity of the antenna array 4100 passes the test, the direction-finding antenna 4000 can be rotated, and then the sensitivity of other antenna arrays 4100 can be detected. Until all the antenna arrays 4100 pass the test, it means that the direction-finding antenna 4000 product is qualified. During the above process, if the sensitivity test of one antenna array 4100 fails, the test can be stopped, indicating that the entire direction-finding antenna 4000 product is unqualified.

[0038] It should be understood that Figure 1 The octagonal array antenna shown is only an exemplary illustration of the direction-finding antenna 4000, and it does not mean that the embodiments of the present invention are only applicable to testing this octagonal array antenna. That is, the embodiments of the present invention do not actually limit the type of the direction-finding antenna 4000. In some other implementation manners of the embodiments of the present invention, the direction-finding antenna 4000 can also adopt other structural forms, such as a hexagonal array antenna, etc.

[0039] Please refer to Figures 2 - 7 , Figure 2 which is a schematic structural diagram of a detection system for a direction-finding antenna provided by an embodiment of the present invention; Figure 3 which is a schematic structural diagram of a turntable assembly; Figure 4 is Figure 3 exploded view of; Figure 5 which is a connection structure diagram of a driving and rotating component, a rotating table and a base; Figure 6 which is a schematic structural diagram of a control component; Figure 7 which is a schematic structural diagram of a base frame.

[0040] As Figure 2 and Figure 5 shown, an embodiment of the present invention provides a detection system for a direction-finding antenna 4000, including a base frame 1000, a turntable assembly 2000 and a control component 3000.

[0041] The turntable assembly 2000 includes a driving and rotating component 2100 and a rotating table 2200. The driving and rotating component 2100 can specifically be a stepping motor, a servo motor, etc. The driving and rotating component 2100 is connected to the rotating table 2200, and the specific connection manner can be, for example, gear connection, belt pulley connection, sprocket connection, etc. The driving and rotating component 2100 is used to drive the rotating table 2200 to rotate. The rotating table 2200 is used to be connected to the direction-finding antenna 4000. In this way, the rotating table 2200 can drive the direction-finding antenna 4000 to rotate. The control component 3000 is connected to the turntable assembly 2000 and is used to send start / stop signals to the turntable assembly 2000 so as to drive the turntable assembly 2000 to operate automatically.

[0042] As can be seen from the above, the detection system provided by the embodiments of the present invention includes a turntable assembly 2000. The turntable assembly 2000 can automatically drive the rotary table 2200 to rotate under the drive and control of the control assembly 3000, thereby realizing the automatic driving and rotation of the direction-finding antenna 4000, so as to switch different antenna arrays 4100 in the direction-finding antenna 4000 for sensitivity detection. Compared with the related art, the detection system provided by the embodiments of the present invention has relatively less manual participation, relatively higher automation degree, relatively lower manual labor intensity, and relatively higher detection efficiency; moreover, both the detection accuracy and the accuracy can be relatively high, which can better meet the detection requirements of the direction-finding antenna 4000.

[0043] In some implementation manners, such as Figure 5 shown, the turntable assembly 2000 may further include a base 2300.

[0044] The base 2300 is the structural basis of the turntable assembly 2000, and other components in the turntable assembly 2000 can be directly or indirectly installed on the base 2300, so as to perform integrated assembly through the base 2300. For example, the aforementioned driving and rotating component 2100 and the rotary table 2200 can be installed on the base 2300. Among them, the driving and rotating component 2100 can be fixedly connected to the base 2300 by connection methods such as screw connection, snap connection, welding, etc., while the rotary table 2200 can be rotatably connected to the base 2300 so as to rotate under the drive of the driving and rotating component 2100.

[0045] The base 2300 may further be provided with a signal interface portion 2400, and the signal interface portion 2400 is used to be connected to the control assembly 3000 so as to realize signal transmission between the two. The specific structural form of the signal interface portion 2400 is not limited herein. In actual applications, those skilled in the art can select according to specific needs as long as it can meet the usage requirements.

[0046] In some implementation manners, such as Figures 2 - 4 shown, the turntable assembly 2000 may further include a first adapter component 2500.

[0047] One end of the first adapter component 2500 can be connected to the base 2300, and the specific connection method can be, for example, screw connection, snap connection, etc., which is not limited herein as long as it can ensure the reliability requirements of the connection. The other end of the first adapter component 2500 can be connected to the base frame 1000, and the specific connection method can also be screw connection, snap connection, etc., which is not limited herein as long as it can ensure the reliability requirements of the connection.

[0048] The setting of the first adapter component 2500 is mainly to overcome the mismatch of the interface between the base 2300 and the base frame 1000, so as to realize the indirect connection between the base 2300 and the base frame 1000. Here, the embodiments of the present invention do not limit the specific structural form of the first adapter component 2500. In practical applications, those skilled in the art can select according to specific needs as long as the requirements of use can be met.

[0049] In a specific example, refer to Figure 4 , the first adapter component 2500 can generally be presented in a cup shape, including a first cup bottom and a first cup periphery. The first cup bottom can be connected to the base 2300 by screws or the like. The first cup periphery can be sleeved on the base frame 1000, and the connection between the first cup periphery and the base frame 1000 can be realized by means of screws or the like.

[0050] In some implementation manners, as Figures 2 - 4 shown, the turntable assembly 2000 may further include a second adapter component 2600.

[0051] One end of the second adapter component 2600 can be connected to the rotating table 2200. The specific connection manner can be, for example, screw connection, snap connection, etc., which are not limited herein as long as the reliability requirements of the connection can be ensured. The other end of the second adapter component 2600 can be used to connect to the direction-finding antenna 4000. The specific connection manner can also be screw connection, snap connection, etc., which are not limited herein as long as the reliability requirements of the connection can be ensured.

[0052] The setting of the second adapter component 2600 is mainly to overcome the mismatch of the interface between the rotating table 2200 and the direction-finding antenna 4000, so as to realize the indirect connection between the rotating table 2200 and the direction-finding antenna 4000. Here, the embodiments of the present invention do not limit the specific structural form of the first adapter component 2500. In practical applications, those skilled in the art can select according to specific needs as long as the requirements of use can be met.

[0053] In a specific example, refer to Figure 4 , the second adapter component 2600 can include an outer cylinder part 2610 and an inner core part 2620. The outer cylinder part 2610 can generally also be presented in a cup shape, including a second cup bottom and a second cup periphery. The second cup bottom can be connected to the rotating table 2200 by screws or the like. A part of the inner core part 2620 can be inserted into the second cup periphery, and the connection between the inner core part 2620 and the second cup periphery can be realized by means of screws or the like. The end of the inner core part 2620 away from the outer cylinder part 2610 can be used to connect to the direction-finding antenna 4000.

[0054] In addition, the provision of the second adapter component 2600 can also be used to adaptively adjust the installation height of the direction-finding antenna 4000 .

[0055] In some implementations, such as Figure 5 As shown, the turntable assembly 2000 may further include an identification component 2700 and a sensor 2800 .

[0056] The sensor 2800 can be fixedly arranged, and specifically can be connected to the base 2300 by screws or the like. The identification component 2700 can specifically be a ruler or the like, and the identification component 2700 can be connected to the rotating table 2200 so as to be able to rotate synchronously with the rotating table 2200. In a specific implementation, the position of the identification component 2700 recognized by the sensor 2800 can be set to zero. In this way, the position can be calibrated once by the sensor 2800 every time the rotating table 2200 rotates one circle, which is more conducive to realizing high-precision control of the rotation angle of the direction-finding antenna 4000, thereby improving the accuracy of detection.

[0057] In some implementations, such as Figure 6 As shown, the control component 3000 may include a control box 3100 , a host computer 3200 , a serial port cable 3300 and a control cable 3400 .

[0058] The host computer 3200 may be a laptop computer, etc. The host computer 3200 may be connected to the control box 3100 via a serial cable 3300, so as to achieve communication connection between the host computer 3200 and the control box 3100. The control box 3100 is connected to the turntable assembly 2000 via a control cable 3400. Specifically, the control cable 3400 may be connected to the aforementioned signal interface part 2400, so as to achieve communication connection between the control box 3100 and the turntable assembly 2000.

[0059] The control box 3100 may be integrated with a drive module and a power module. The drive module may be connected to the control cable 3400 to send control instructions to the turntable assembly 2000. The power module is used to supply power to various components in the detection system. Figure 6 The control box 3100 may also be provided with a power cable 3110, which may be used to connect to a socket strip or the like to access the mains, thereby meeting the requirements for power use.

[0060] The control box 3100 may also be provided with a control panel 3120. The control panel 3120 may include a display screen, buttons, switches, etc. The display screen is used to display some key information, the switch is used to realize the on / off of the control box 3100, and the buttons can conveniently operate the control box 3100.

[0061] In some implementations, the base frame 1000 may include a support rod 1100 and a plurality of foot rods 1200 mounted on the support rod 1100. Each foot rod 1200 can rotate relative to the support rod 1100 to switch between a retracted state and an extended state. As Figure 7 shown, in the extended state, each foot rod 1200 can support on the mounting surface (such as the ground, etc.).

[0062] It should be understood that the above description of the specific structural form of the base frame 1000 is only an exemplary illustration made by the embodiments of the present invention in combination with the drawings, and cannot be used as a limitation on the implementation scope of the detection system provided by the embodiments of the present invention. Under the condition of meeting the functions, the above base frame 1000 can also adopt other structural forms.

[0063] Please refer to Figure 8 , Figure 8 which is a schematic flowchart of a method for detecting a direction-finding antenna provided by an embodiment of the present invention.

[0064] As Figure 8 shown, an embodiment of the present invention also provides a method for detecting a direction-finding antenna 4000, which is applicable to the detection system of the direction-finding antenna 4000 involved in the foregoing various implementations. The detection method may include the following steps S100 to step S700.

[0065] Step S100, configure the detection system and install the direction-finding antenna 4000 on the rotary table 2200. The direction-finding antenna 4000 includes N antenna arrays 4100, where N≥2.

[0066] The above configuration of the detection system is specifically to connect the components in the detection system so that the detection system can be in a state ready to start working at any time. Then, the lateral antenna 4000 can be installed on the rotary table 2200, and the position of the target aircraft 5000 can be adjusted. Specifically, it can be to control the target aircraft 5000 to take off to a set height, or to adjust the target aircraft 5000 to the set height through some hanging support components, etc.

[0067] Step S200, drive a to-be-detected antenna array 4100 of the direction-finding antenna 4000 to turn towards the target aircraft 5000 through the driving and rotating component 2100.

[0068] Step S300, obtain the sensitivity parameter of the antenna array 4100.

[0069] Step S400, determine whether the sensitivity parameter meets the set conditions. If not, execute the following step S500. If so, execute the following step S600. Among them, the set conditions can be set as needed and are not limited herein as long as they can meet the usage requirements.

[0070] Step S500, output a detection unqualified prompt message.

[0071] Step S600, determine whether all antenna arrays 4100 have been detected. If not, execute Step S200. If so, execute the following Step S700.

[0072] Step S700, output a detection qualified prompt message.

[0073] In this way, through the above detection method, the sensitivity of each antenna array 4100 of the direction-finding antenna 4000 can be automatically detected, with high automation, convenient operation and high test efficiency. Moreover, in the above detection method, the position of the target aircraft 5000 can remain unchanged, and only the direction-finding antenna 4000 needs to be controlled to rotate, which can effectively reduce the space occupied by the detection and facilitate the realization of the detection operation.

[0074] Here, the embodiments of the present invention do not limit the specific types of the above unqualified prompt message and qualified prompt message. In practical applications, those skilled in the art can select according to specific needs as long as the requirements of use can be met. For example, both the above unqualified prompt message and qualified prompt message can be pop-up messages, and the pop-up messages can be specifically displayed in the host computer 3200. For another example, the above unqualified prompt message and qualified prompt message can also be light messages. Specifically, corresponding indicator lights can be set to distinguish whether the message sent is an unqualified prompt message or a qualified prompt message, etc., according to whether the indicator light is on or the color of the indicator light. For another example, the above unqualified prompt message and qualified prompt message can also be sound messages, etc.

[0075] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A detection system for a direction-finding antenna, characterized in that, It includes a base frame, a turntable assembly and a control assembly. The turntable assembly includes a driving and rotating component and a rotating table. The driving and rotating component is connected to the rotating table and is used to drive the rotating table to rotate. The rotating table is used to be connected to the direction-finding antenna, and the control assembly is connected to the turntable assembly.

2. The detection system of the direction-finding antenna according to claim 1, characterized in that, The turntable assembly further includes a base. The driving and rotating component and the rotating table are both installed on the base. The base is provided with a signal interface part, and the signal interface part is used to be connected to the control assembly.

3. The detection system for the direction-finding antenna according to claim 2, wherein The turntable assembly further includes a first adapter component. One end of the first adapter component is connected to the base, and the other end of the first adapter component is connected to the base frame.

4. The detection system for the direction-finding antenna according to claim 2, characterized in that, The turntable assembly further includes a second adapter component. One end of the second adapter component is connected to the rotating table, and the other end of the second adapter component is used to be connected to the direction-finding antenna.

5. The detection system of the direction-finding antenna according to claim 4, wherein The second adapter component includes an outer cylinder part and an inner core part. The outer cylinder part is connected to the rotating table, and a part of the inner core part is inserted into the inside of the outer cylinder part. The inner core part is used to be connected to the direction-finding antenna.

6. The detection system for a direction-finding antenna according to any one of claims 1-5, characterized in that, The turntable assembly further includes an identification component and a sensor. The sensor is fixedly arranged, and the identification component is connected to the rotating table.

7. The detection system for a direction-finding antenna according to any one of claims 1-5, characterized in that, The control assembly includes a control box, a host computer, a serial cable and a control cable. The host computer is connected to the control box through the serial cable, and the control box is connected to the turntable assembly through the control cable.

8. The detection system for a direction-finding antenna according to claim 7, wherein A driving module and a power module are arranged in the control box. The driving module is connected to the control cable, and the control box is further provided with a control panel.

9. The detection system for the direction-finding antenna according to any one of claims 1-5, characterized in that The base frame includes a support rod and a plurality of foot rods installed on the support rod. Each foot rod can rotate relative to the support rod to switch between a retracted state and an extended state.

10. A detection method for a direction-finding antenna, characterized in that, A detection system applicable to the direction-finding antenna according to any one of claims 1-9. The detection method includes the following steps: Step S100, configure the detection system, install the direction-finding antenna on the rotating table, and set up a target aircraft. The direction-finding antenna includes N antenna arrays, N≥2; Step S200, drive a to-be-detected antenna array of the direction-finding antenna to face the target aircraft through the driving and rotating component; Step S300, obtain the sensitivity parameter of the antenna array; Step S400, judge whether the sensitivity parameter meets the set conditions. If not, execute the following step S500. If so, execute the following step S600; Step S500, output a detection unqualified prompt message; Step S600, judge whether all antenna arrays have been detected. If not, execute step S200. If so, execute the following step S700; Step S700, output a detection qualified prompt message.

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