A directional detection device

Abstract

The application provides a directional detection device, which has the functions of direction and detection and is convenient to use. The directional detection device comprises a signal unit and a fixing assembly. The fixing assembly comprises a base plate, and the signal unit is mounted on the base plate. The signal unit comprises an array antenna assembly, and the array antenna assembly comprises a plurality of directional antenna modules. Each directional antenna module comprises an antenna plate, and the plurality of directional antenna modules are uniformly distributed around an axis in a circle.

Description

Technical Field

[0001] This utility model relates to the field of anti-null technology, specifically to a directional detection device. Background Technology

[0002] In the anti-drone industry, there is a need to detect drones. Among the relevant technical solutions, there is a drone detection product 200, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of a drone detection product 200. The detection product 200 uses a rod-shaped omnidirectional antenna 210 to detect the presence of drones and the distance between the drones and the detection equipment, but it cannot determine the specific location of the drones. Utility Model Content

[0003] The purpose of this application is to provide a directional detection device with directional and detection functions that is easy to use.

[0004] To achieve the above objectives, this application provides a directional detection device, including a signal unit and a fixing component. The fixing component includes a substrate, the signal unit is mounted on the substrate, the signal unit includes an array antenna assembly, the array antenna assembly includes multiple directional antenna modules, each directional antenna module includes an antenna plate, and the multiple directional antenna modules are evenly distributed circumferentially around an axis.

[0005] Optionally, the signal unit further includes a receiving antenna assembly; the fixing assembly further includes an adapter plate, the adapter plate and the base plate being disposed opposite to each other along a first direction;

[0006] The array antenna assembly is located between the adapter plate and the base plate, and the receiving antenna assembly is fixed to the side of the adapter plate away from the array antenna assembly.

[0007] Optionally, the receiving antenna assembly includes two GPS (Global Positioning System) antennas, which are symmetrically arranged about an axis and located at the edge of the adapter plate.

[0008] Optionally, the directional antenna module includes two frame plates, and the antenna plate is fixed between the two frame plates;

[0009] The frame plate is provided with a first mounting hole, and the antenna plate is provided with a second mounting hole corresponding to the first mounting hole. The directional antenna module also includes a connector, which is inserted between the first mounting hole and the second mounting hole to fix the frame plate and the antenna plate. The frame plate and the connector are made of non-metallic materials.

[0010] Optionally, the fixing assembly further includes a plurality of support bases located between the adapter plate and the base plate, with each of the plurality of support bases corresponding to one of the directional antenna modules;

[0011] The frame plate includes a first connecting part and a second connecting part, which are located on both sides of the frame plate in the first direction; the first connecting part is fixed to the adapter plate, and the second connecting part is fixed to the support base.

[0012] Optionally, the fixing assembly further includes a support plate, on which a plurality of the support seats are supported; a gap exists between the support plate and the base plate;

[0013] The directional detection device further includes a signal processing unit, which includes a distributor connected to the array antenna assembly to filter or amplify signals. The distributor is located between the support plate and the substrate.

[0014] Optionally, the array antenna assembly includes a fixing plate, the frame plate includes a fixing part, the fixing part and the second connecting part are located on the same side of the frame plate in the first direction, and the fixing part is fixed to the fixing plate.

[0015] Optionally, the directional detection device further includes a signal processing unit, which includes a distributor and a computing module. The distributor is connected to the array antenna assembly to filter or amplify the signal, and the computing module is connected to the distributor.

[0016] Optionally, the signal unit further includes a limiter, one end of which is connected to the receiving antenna assembly, and the other end of which is connected to the computing module.

[0017] Optionally, the fixing component includes a protective cover and a shielding shell, and the substrate includes a first surface and a second surface disposed opposite to each other;

[0018] The protective cover is fixed to the first surface of the substrate, and the protective cover and the substrate form an inner cavity, in which the signal unit and the distributor are located; the shielding shell is fixed to the second surface of the substrate, and the shielding shell and the substrate form a shielding cavity, in which the computing module is located.

[0019] Optionally, the directional detection device further includes a heat dissipation system, which includes a heat sink and a fan, and the heat sink and the fan are fixed to the substrate.

[0020] The directional detection device of this application uses multiple directional antenna modules circumferentially distributed on a substrate to receive signals. The signals are processed to determine the distance to the drone. The multiple directional antenna modules rotate in turn by switching between each other during power-on, and the direction of the drone is determined by the magnitude of the received energy. This directional detection device possesses both directional and detection functions, and its compact size makes it easy to use and suitable for a wide range of applications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a drone detection product.

[0022] Figure 2 This is a schematic diagram of the internal structure of a directional detection device according to an embodiment of this application;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure after removing the protective cover;

[0024] Figure 4 for Figure 2 A bottom view;

[0025] Figure 5 This is a side view of a directional detection device according to an embodiment of this application.

[0026] The attached figures are labeled as follows:

[0027] 100 - Directional detection equipment;

[0028] 110 - Signal unit; 111 - Receiving antenna assembly; 111a - GPS antenna; 111b - 4G antenna; 111c - ADS-B antenna; 112 - Array antenna assembly; 1121 - Directional antenna module; 11211 - Frame plate; 11211a - First connecting part; 11211b - Second connecting part; 11211c - Fixing part; 11212 - Antenna plate; 1122 - Fixing plate; 114 - Limiter;

[0029] 120 - Signal processing unit; 121 - Distributor; 122 - Calculation module;

[0030] 130-Fixing component; 131-Protective cover; 132-Baseboard; 133-Shielding shell; 134-Adapter board; 135-Support base; 136-Support plate; 137-Support column; 140-Connecting component; 141-Power connector; 142-Network connector; 143-Expansion interface; 150-Cooling system; 151-Heat sink; 152-Fan.

[0031] 200 - Detection product; 210 - Rod-shaped omnidirectional antenna. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] In the description of the embodiments in this application, it should be noted that the orientation or positional relationship indicated by terms such as "up" and "down" is based on Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of a directional detection device 100 in an embodiment of this application. It is only for the purpose of description and is not intended to indicate or imply that the device must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0034] like Figure 3 As shown, Figure 3 for Figure 2 A schematic diagram of the structure with the protective cover 131 removed.

[0035] This application provides a directional detection device 100, including a signal unit 110 and a fixing component 130. The fixing component 130 includes a substrate 132. The signal unit 110 is mounted on the substrate 132. The signal unit 110 includes an array antenna assembly 112. The array antenna assembly 112 includes a plurality of directional antenna modules 1121. Each directional antenna module 1121 includes an antenna plate 11212. The plurality of directional antenna modules 1121 are evenly distributed circumferentially around an axis.

[0036] This embodiment does not limit the shape of the substrate 132. For example, in this embodiment, the substrate 132 is a circular plate, which is easy to process. The antenna plate 11212 is approximately an isosceles trapezoidal plate-shaped directional antenna, which is easy to install and integrate. Since there are more and more drone models operating in non-standard frequency bands in the current drone market, this embodiment sets the internal RF receiving link of the antenna plate 11212 to 0-6GHz, ensuring that the operating frequency band of the directional antenna module 1121 is 0-6GHz, which can cover the directional antennas of both mainstream and non-mainstream frequency bands in the market. In addition, each directional antenna module 1121 in this embodiment can cover the detection within a certain horizontal angle range. A single directional antenna module 1121 can be responsible for the detection of a specified angle. Therefore, the specific number of directional antenna modules 1121 can be determined according to the horizontal angle that each directional antenna module 1121 can cover, so that multiple antenna modules 1121 can receive signals from all directions in 360 degrees.

[0037] Specifically in this embodiment, each directional antenna module 1121 can cover a horizontal angle of 50 degrees, so eight directional antenna modules 1121 can be set up. The eight directional antenna modules 1121 are evenly distributed in a circle around the axis on the substrate 132, which can receive signals from all directions of 360 degrees. They can switch and rotate with each other by the power-on sequence, and determine the direction of the UAV by the amount of energy received. It has both directional and detection functions.

[0038] In some embodiments, the signal unit 110 further includes a receiving antenna assembly 111; the fixing assembly 130 further includes an adapter plate 134, the adapter plate 134 and the substrate 132 being disposed opposite to each other along a first direction; the array antenna assembly 112 is located between the adapter plate 134 and the substrate 132, and the receiving antenna assembly 111 is fixed to the side of the adapter plate 134 away from the array antenna assembly 112. In this embodiment, the shape of the adapter plate 134 is not limited. For example, in this embodiment, the adapter plate 134 is a circular plate, which is convenient for processing. The adapter plate 134 and the substrate 132 are disposed opposite to each other along the first direction. Figure 2 The orientation refers to the orientation of the directional detection device in the working state in this embodiment. It can be understood that the first direction at this time is vertical. The adapter plate 134 and the base plate 132 are placed horizontally and parallel to each other, with the adapter plate 134 located above the base plate 132. The array antenna assembly 112 is fixed between the base plate 132 and the adapter plate 134, and the receiving antenna assembly 111 is fixed above the adapter plate 134. This arrangement makes the structure of the directional detection device more compact, and the circumferentially distributed directional antenna module 1121 and the receiving antenna assembly 111 located on the directional antenna module 1121 can better receive signals.

[0039] In some embodiments, the receiving antenna assembly 111 includes two GPS (Global Positioning System) antennas 111a, which are symmetrically arranged about an axis and located at the edge of the adapter plate 134. Each GPS antenna 111a is used for positioning, and the positional relationship of the signals obtained between the two GPS antennas 111a can be used to orient the UAV's location. The adapter plate 134 is a circular plate, and to improve the positioning accuracy of the GPS antennas 111a, the two GPS antennas 111a are fixed radially to the upper surface of the adapter plate 134. In this embodiment, the receiving antenna assembly 111 also includes a 4G (Fourth Generation) antenna 111b and an ADS-B (Automatic Dependent Surveillance-Broadcast) antenna 111c. The 4G antenna 111b is used for networking, and the ADS-B antenna 111c is used to receive signals in a specific frequency band, such as civil aviation signals. The 4G antenna 111b and ADS-B antenna 111c are also arranged radially along the adapter plate 134 and can be located at the edge of the adapter plate 134. The distribution direction of the 4G antenna 111b and ADS-B antenna 111c and the distribution direction of the two GPS antennas 111a can be approximately perpendicular, or in other words, the 4G antenna 111b, ADS-B antenna 111c and the two GPS antennas 111a are distributed circumferentially to help eliminate interference between the antenna devices.

[0040] A threaded connecting shaft can be provided at one end of the GPS antenna 111a, 4G antenna 111b and ADS-B antenna 111c. The threaded connecting shaft is inserted into the corresponding fixing hole of the adapter plate 134, and the receiving antenna assembly 111 and the adapter plate 134 are fixed with nuts. The receiving antenna assembly 111 is fixed above the adapter plate 134 for receiving signals.

[0041] In some embodiments, the directional antenna module 1121 includes two frame plates 11211, with an antenna plate 11212 fixed between the two frame plates 11211. Each frame plate 11211 has a first mounting hole, and the antenna plate 11212 has a second mounting hole corresponding to the first mounting hole. The directional antenna module 1121 also includes a connector, which is inserted between the first and second mounting holes to fix the frame plate 11211 and the antenna plate 11212. The frame plates 11211 and the connector are made of non-metallic materials. Isosceles trapezoidal frame plates 11211 of corresponding shapes are provided on both sides of the antenna plate 11212 to facilitate the installation of the antenna plate 11212. The isosceles trapezoidal frame plate 11211 includes an upper base side, a lower base side, and two isosceles sides located between the upper base side and the lower base side. Mounting holes are provided on the upper base side and the lower base side. Specifically, the upper base side and the lower base side of the frame plate 11211 are provided with first mounting holes, and the upper base side and the lower base side of the antenna plate 11212 are provided with second mounting holes corresponding to the first mounting holes.

[0042] Two frame plates 11211 are defined as the first frame plate and the second frame plate. An antenna plate 11212 is placed between the first and second frame plates, and a connector is used to connect the first frame plate, the antenna plate 11212, and the second frame plate. Mounting holes are provided on the isosceles sides of the first and second frame plates. Based on the connection between the frame plate 11211 and the antenna plate 11212, the first and second frame plates are fixedly connected to improve stability. In this embodiment, the frame plate 11211 and the connector are made of non-metallic materials. Specifically, the frame plate 11211 is made of fiberglass, which does not absorb or shield electromagnetic waves; the connectors are nylon screws and nylon studs, and nylon, as an insulator, will not affect electromagnetic waves. The directional antenna module 1121 has no metal connectors or metal structures, thus avoiding the influence of metal on electromagnetic waves.

[0043] In some embodiments, the fixing assembly 130 further includes a plurality of support seats 135, which are located between the adapter plate 134 and the base plate 132. Each support seat 135 corresponds to a directional antenna module 1121. The frame plate 11211 includes a first connecting portion 11211a and a second connecting portion 11211b, located on both sides of the frame plate 11211 in a first direction. The first connecting portion 11211a is fixed to the adapter plate 134, and the second connecting portion 11211b is fixed to the support seat 135. The shape of the support seat 135 is not limited; exemplarily, in this embodiment, the support seat 135 is cylindrical for ease of processing.

[0044] The support base 135 is located between the adapter plate 134 and the base plate 132, and corresponds one-to-one with the directional antenna module 1121. As described above, this embodiment includes eight directional antenna modules 1121, which correspond to eight support bases 135, all of which are evenly distributed circumferentially around the axis. A first connecting portion 11211a and a second connecting portion 11211b are provided on both sides of the isosceles side of the frame plate 11211. The first connecting portion 11211a is connected to the adapter plate 134, and the second connecting portion 11211b is connected to the support base 135, thus mounting the antenna plate 11212 between the adapter plate 134 and the support base 135. The support base 135 has a connecting end and a fixing portion 11211c at both ends along the axial direction. The fixing portion 11211c is fixed to the support plate 136, and the connecting end is connected to the second connecting portion 11211b of the frame plate 11211. The support base 135 is used to support the directional antenna module 1121 to prevent the directional antenna module 1121 from shaking too much when it is subjected to vibration, which could cause damage.

[0045] In some embodiments, the fixing assembly 130 further includes a support plate 136, on which a plurality of support seats 135 are supported; a gap exists between the support plate 136 and the substrate 132; the directional detection device 100 further includes a signal processing unit 120, which includes a distributor 121 connected to the array antenna assembly 112 to filter or amplify signals, and the distributor 121 is located between the support plate 136 and the substrate 132. The shape of the support plate 136 is not limited; exemplarily, in this embodiment, the support plate 136 is a circular plate, which is easy to process. The support seats 135 are fixed above the support plate 136, and a gap exists between the support plate 136 and the substrate 132. The distributor 121 is fixed between the support plate 136 and the substrate 132. In this embodiment, the distributor 121 is configured as an integrated encapsulated metal structure. The structure of the distributor 121 is not limited. For example, in this embodiment, the distributor 121 is a symmetrical decagonal prism structure. Multiple levels of isolation walls are provided inside the distributor 121 to prevent signal interference between internal channels. Corresponding connection holes are provided on the sides of the distributor 121. The antenna plate 11212 of the directional antenna module 1121 has connecting lines. An SMP (Sub-Miniature Push-on) RF connector is provided at the connection end of the connecting lines. The SMP RF connector is inserted into the connection hole for data transmission. In this embodiment, multiple support pillars 137 are also provided between the support plate 136 and the substrate 132. The multiple support pillars 137 are evenly distributed around the distributor 121 to support the upper support plate 136.

[0046] In some embodiments, the array antenna assembly 112 includes a fixing plate 1122, and the frame plate 11211 includes a fixing part 11211c. The fixing part 11211c and the second connecting part 11211b are located on the same side of the frame plate 11211 in a first direction, and the fixing part 11211c is fixed to the fixing plate 1122. On the same side of the frame plate 11211 and the second connecting part 11211b, the fixing part 11211c is provided, and the fixing plate 1122 is located on the side of the fixing part 11211c close to the support plate 136. The fixing part 11211c of the frame plate 11211 is fixed to the circumferential side of the fixing plate 1122. The eight directional antenna modules 1121 are connected into a whole by means of the fixing plate 1122 and the adapter plate 134, thereby increasing the strength of the array antenna assembly 112.

[0047] In some embodiments, the directional detection device 100 further includes a signal processing unit 120, which includes a distributor 121 and a calculation module 122. The distributor 121 is connected to the array antenna assembly 112 to filter or amplify the signal, and the calculation module 122 is connected to the distributor 121. In this embodiment, there are eight directional antenna modules 1121, and the distributor 121 has eight connection holes corresponding to the eight directional modules 1121, which can also be understood as a one-to-eight component. The array antenna assembly 112 receives the signal, determines the direction of the UAV, and uses the distributor 121 to filter and amplify the signal before calculating the distance to the UAV.

[0048] In some embodiments, the signal unit 110 further includes a limiter 114, one end of which is connected to the receiving antenna assembly 111, and the other end of which is connected to the computing module 122. Four limiters 114 are provided on the adapter plate 134 corresponding to the receiving antenna assembly 111, and each of the four limiters 114 is connected to the receiving antenna assembly 111. The wiring harness of the receiving antenna assembly 111 is connected to the limiter 114, which prevents the signal from exceeding the safe or expected range, thus improving safety. It is worth noting that the adapter plate 134 and the fixing plate 1122 are on the same axis, and through holes are provided on the axial portions of the adapter plate 134 and the fixing plate 1122 to accommodate the wiring harness of the receiving antenna assembly 111 and the limiter 114. The wiring harness enters through the through hole of the adapter plate 134 and exits through the through hole of the fixing plate 1122, preventing the wiring harness from becoming tangled.

[0049] In this embodiment, a connection component 140 is also provided on the substrate 132. The connection component 140 includes a power connector 141, a network connector 142, and an expansion interface 143. The power connector 141 is used for AC power input, the network connector 142 is used for transmitting data from the computing module 122, and the expansion interface 143 can be used to connect to other UAV strike equipment.

[0050] like Figure 5As shown, Figure 5 This is a side view of a directional detection device 100 according to an embodiment of this application.

[0051] In some embodiments, the fixing component 130 includes a protective cover 131 and a shielding shell 133. The substrate 132 includes a first surface and a second surface disposed opposite to each other along a first direction. The protective cover 131 is fixed to the first surface of the substrate 132, forming an inner cavity with the substrate 132, where the signal unit 110 and the distributor 121 are located. The shielding shell 133 is fixed to the second surface of the substrate 132, forming a shielding cavity with the substrate 132, where the computing module 122 is located. In this embodiment, the protective cover 131 is fabricated using a honeycomb sandwich process with excellent wave transmission, achieving a wave transmission of ≥98% in the 0-6GHz range, minimizing the electromagnetic wave loss of the protective cover 131. The protective cover 131 is fixed to the first surface of the substrate 132 to protect the entire signal unit 110. The shielding shell 133 is provided on the second surface of the substrate 132 to ensure isolation between the computing module 122 and the signal unit 110, avoiding signal interference. The shielding shell 133 also has a connecting portion for mounting the entire device.

[0052] like Figure 4 As shown, Figure 4 for Figure 2 A bottom view.

[0053] In some embodiments, the directional detection device 100 further includes a heat dissipation system 150, which includes heat sinks 151 and fans 152, and the heat sinks 151 and fans 152 are fixed to a substrate 132. Two fans 152 are symmetrically arranged about an axis on the surface of the substrate 132, and the heat sinks 151 are uniformly fixed on the surface of the substrate 132, with some of the heat sinks 151 arranged around the fans 152 for heat dissipation of the entire device.

[0054] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A directional detection device, characterized in that, The device includes a signal unit (110) and a fixing component (130). The fixing component (130) includes a substrate (132). The signal unit (110) is mounted on the substrate (132). The signal unit (110) includes an array antenna assembly (112). The array antenna assembly (112) includes a plurality of directional antenna modules (1121). Each directional antenna module (1121) includes an antenna plate (11212). The plurality of directional antenna modules (1121) are evenly distributed around an axis in a circle.

2. The directional detection device according to claim 1, characterized in that, The signal unit (110) further includes a receiving antenna assembly (111); the fixing assembly (130) further includes an adapter plate (134), the adapter plate (134) and the substrate (132) being disposed opposite to each other along a first direction; The array antenna assembly (112) is located between the adapter plate (134) and the substrate (132), and the receiving antenna assembly (111) is fixed to the side of the adapter plate (134) away from the array antenna assembly (112).

3. The directional detection device according to claim 2, characterized in that, The receiving antenna assembly (111) includes two GPS antennas (111a) which are symmetrically arranged about an axis and located at the edge of the adapter plate (134).

4. The directional detection device according to claim 2, characterized in that, The directional antenna module (1121) includes two frame plates (11211), and the antenna plate (11212) is fixed between the two frame plates (11211). The frame plate (11211) is provided with a first mounting hole, and the antenna plate (11212) is provided with a second mounting hole corresponding to the first mounting hole. The directional antenna module (1121) also includes a connector, which is inserted between the first mounting hole and the second mounting hole to fix the frame plate (11211) and the antenna plate (11212). The frame plate (11211) and the connector are made of non-metallic materials.

5. The directional detection device according to claim 4, characterized in that, The fixing component (130) also includes a plurality of support bases (135), which are located between the adapter plate (134) and the base plate (132). The plurality of support bases (135) and the directional antenna module (1121) are arranged in a one-to-one correspondence. The frame plate (11211) includes a first connecting part (11211a) and a second connecting part (11211b), the first connecting part (11211a) and the second connecting part (11211b) are located on both sides of the frame plate (11211) in the first direction; the first connecting part (11211a) is fixed to the adapter plate (134), and the second connecting part (11211b) is fixed to the support base (135).

6. The directional detection device according to claim 5, characterized in that, The fixing assembly (130) further includes a support plate (136), on which a plurality of support seats (135) are supported; a gap exists between the support plate (136) and the base plate (132); The directional detection device further includes a signal processing unit (120), which includes a distributor (121) connected to the array antenna assembly (112) to filter or amplify signals. The distributor (121) is located between the support plate (136) and the substrate (132).

7. The directional detection device according to claim 5, characterized in that, The array antenna assembly (112) includes a fixing plate (1122), and the frame plate (11211) includes a fixing part (11211c). The fixing part (11211c) and the second connecting part (11211b) are located on the same side of the frame plate (11211) in the first direction, and the fixing part (11211c) is fixed to the fixing plate (1122).

8. The directional detection device according to any one of claims 2-5 and 7, characterized in that, The directional detection device further includes a signal processing unit (120), which includes a distributor (121) and a computing module (122). The distributor (121) is connected to the array antenna assembly (112) to filter or amplify the signal, and the computing module (122) is connected to the distributor (121).

9. The directional detection device according to claim 8, characterized in that, The signal unit (110) also includes a limiter (114), one end of which is connected to the receiving antenna assembly (111), and the other end of which is connected to the computing module (122).

10. The directional detection device according to claim 8, characterized in that, The fixing component (130) includes a protective cover (131) and a shielding shell (133), and the substrate (132) includes a first surface and a second surface disposed opposite to each other; The protective cover (131) is fixed to the first surface of the substrate (132), and the protective cover (131) and the substrate (132) form an inner cavity, the signal unit (110) and the distributor (121) are located in the inner cavity; the shielding shell (133) is fixed to the second surface of the substrate (132), and the shielding shell (133) and the substrate (132) form a shielding cavity, the computing module (122) is located in the shielding cavity.

11. The directional detection device according to any one of claims 1-7, characterized in that, The directional detection device also includes a heat dissipation system (150), which includes a heat sink (151) and a fan (152), and the heat sink (151) and the fan (152) are fixed to the substrate (132).

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