Antenna control switching device and direction-finding positioning system

Abstract

The utility model relates to an antenna control switching device and a direction-finding positioning system, the direction-finding positioning system comprises the antenna control switching device, a data acquisition device, a radio frequency front-end module and an antenna array module, the radio frequency front-end module comprises a plurality of radio frequency modules, each radio frequency module comprises a radio frequency switch assembly, and the antenna array module is connected with the radio frequency switch assembly. The antenna array module comprises a plurality of antenna oscillators, the radio frequency modules and the antenna oscillators are arranged in a one-to-one correspondence mode, the antenna control switching device comprises a shell, an input module, an output module and a connecting plate, all output plug connectors of the output module and the input module are installed on the shell, the input module can be connected with an output interface of the data acquisition device, and the connecting plate can be connected with the data acquisition device. The output plug connectors are connected with the radio frequency switch assemblies in a one-to-one correspondence mode, and the connecting plate is connected with the input module and the output module. And the data acquisition device is correspondingly connected with the radio frequency switch assembly by controlling the plurality of output plug connectors connected with the switching device, so that gating of different working frequency bands of the plurality of filtering modules is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of direction finding and positioning, in particular to an antenna control switching device and a direction finding and positioning system. Background Art

[0002] The direction finding and positioning system determines the direction and specific location of the radiation source based on the propagation characteristics of electromagnetic waves, thereby realizing wireless positioning. The direction finding and positioning system includes a radio frequency front-end module, a data acquisition device, and an antenna array module. The antenna array module includes multiple antenna elements, and the multiple antenna elements can receive radio signals. The radio frequency front-end module can receive the radio frequency signals converted by the multiple antenna elements through different channels. The multiple radio frequency signals are sent to the data acquisition device after filtering and amplification. The data acquisition device receives the radio frequency signals after filtering and amplification on multiple channels, and outputs simulated IQ signals after frequency conversion. The data acquisition device converts the simulated IQ signals into digital signals, and outputs IQ data after further data processing. The IQ data is processed by the direction finding and positioning algorithm to realize wireless positioning.

[0003] In the direction finding and positioning system, in order to widen the working frequency band of the direction finding and positioning system, it is necessary to design the filter module in the RF front-end module in sections: when the direction finding and positioning system works in different frequency bands, it is necessary to switch different filter modules. However, the distance between the antenna elements is far, and the data acquisition device cannot select the working frequency band for the filter modules corresponding to the above multiple antenna elements.

[0004] Therefore, there is an urgent need for an antenna control switching device and a direction finding and positioning system to solve the above technical problems. Utility Model Content

[0005] An object of the present utility model is to provide an antenna control switching device to at least solve one of the above problems.

[0006] To achieve the above object, the utility model provides an antenna control switching device, comprising:

[0007] shell;

[0008] An input module, which is mounted on the housing and is configured to be connectable to an output interface of a data acquisition device;

[0009] An output module, comprising a plurality of output connectors, each of which is mounted on the housing, and each of which is configured to be connected to a radio frequency switch component in the radio frequency front-end module in a one-to-one correspondence, and the radio frequency switch component is arranged in a one-to-one correspondence with the antenna element in the antenna array module;

[0010] A connecting board is connected to the input module and the output module respectively.

[0011] Furthermore, the input module includes an input connector and an input circuit board, the input connector is installed on the housing, the input circuit board is installed in the housing, the input connector can be connected to the output interface of the data acquisition device, the input connector is connected to the input circuit board, and the input circuit board is connected to the output module through the connecting plate.

[0012] Furthermore, the output module also includes an output circuit board assembly, each of the output connectors is connected to the output circuit board assembly, the output circuit board assembly is installed in the housing, and the output circuit board assembly is connected to the input circuit board via the connecting plate.

[0013] Furthermore, the output circuit board assembly includes a first output circuit board and a second output circuit board, the first output circuit board and the second output circuit board are arranged opposite to each other, the first output circuit board and the second output circuit board are both provided with the output connector, the connecting plates are provided on both sides of the input circuit board, and the two connecting plates are arranged in one-to-one correspondence with the first output circuit board and the second output circuit board.

[0014] Furthermore, the antenna control switching device also includes a power supply module, and the power supply module includes a power board, and the power board is connected to the input circuit board.

[0015] Furthermore, the power supply module also includes a power supply connector, which is installed on the housing and connected to the power board.

[0016] Furthermore, the power supply module also includes a first conversion module and a second conversion module for converting voltage, and the first conversion module and the second conversion module are both installed on the power board.

[0017] Furthermore, the power supply module also includes a connector, and the power board is connected to the input circuit board through the connector.

[0018] Furthermore, the shell includes a shell body and a bottom shell, the bottom shell is installed on the shell body, the shell body is provided with a waterproof groove, a waterproof strip is arranged in the waterproof groove, and the waterproof strip is arranged between the shell body and the bottom shell.

[0019] Another object of the present invention is to provide a direction finding and positioning system to at least solve one of the above problems.

[0020] To achieve the above object, the utility model provides a direction finding and positioning system, comprising:

[0021] The antenna control switching device as described in any one of the above solutions;

[0022] A data acquisition device, whose output interface can be connected to the input module;

[0023] The RF front-end module includes a plurality of RF modules, each of which includes an RF switch component, and the output connector can be connected to the RF switch component in a one-to-one correspondence;

[0024] The antenna array module comprises a plurality of antenna elements, and the radio frequency switch components are arranged in a one-to-one correspondence with the antenna elements.

[0025] The beneficial effects of the utility model are:

[0026] The direction-finding and positioning system provided by the utility model includes an antenna control adapter, a data acquisition device, a radio frequency front-end module and an antenna array module. The radio frequency front-end module includes multiple radio frequency modules, each radio frequency module includes a radio frequency switch component, the antenna array module includes multiple antenna vibrators, and the radio frequency switch components are arranged in a one-to-one correspondence with the antenna vibrators. The antenna control adapter includes a shell, an input module, an output module and a connecting board. The output module includes multiple output connectors, and each output connector and the input module are installed on the shell. The input module can be connected to the output interface of the data acquisition device, and each output connector can be connected to the radio frequency switch component in a one-to-one correspondence. The connecting board is respectively connected to the input module and the output module. The multiple antenna elements in the antenna array module can all receive radio signals of all frequency bands. When the radio frequency signal converted by a specific antenna element is required to be a specific frequency band, the data acquisition device transmits the relevant information of the radio frequency signal of the specific frequency band to the input module through the output interface of the data acquisition device, and then transmits it to the output connector corresponding to the specific antenna element through the connecting board, and then transmits the information to the corresponding radio frequency switch component, and selects the corresponding filter module of the specific antenna element through the radio frequency switch component to filter out the radio frequency signals of other frequency bands, so as to realize the function of converting the radio frequency signal of the specific antenna element into a specific frequency band. The control adapter is arranged between the data acquisition device and the radio frequency front-end module, and can select the radio frequency switch component corresponding to the antenna array module, so that the data acquisition device is connected to the control adapter through an output interface, and then selects the corresponding filter module through multiple output connectors to select the working frequency band, so that the data acquisition device will not be inconvenient to connect due to the long distance from the antenna array module, and the direction finding and positioning of the direction finding and positioning system can be carried out smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an antenna control switching device provided by an embodiment of the utility model;

[0028] Figure 2 This is a partial structural diagram of the antenna control switching device provided by the embodiment of the utility model Figure 1 ;

[0029] Figure 3 It is a structural schematic diagram of the antenna control switching device provided by an embodiment of the utility model from another angle;

[0030] Figure 4 This is a partial structural diagram of the antenna control switching device provided by the embodiment of the utility model Figure 2 ;

[0031] Figure 5 It is a partial structural schematic diagram of a power supply module provided in an embodiment of the utility model;

[0032] Figure 6 It is a control schematic diagram of the direction finding and positioning system.

[0033] In the figure:

[0034] 100, antenna control switching device; 200, data acquisition equipment; 300, radio frequency front-end module; 400, antenna array module;

[0035] 1. Shell; 2. Input module; 3. Output module; 4. Power supply module; 5. Connection board; 6. Power button; 7. Indicator light; 8. Handle;

[0036] 11. Shell body; 12. Bottom shell; 21. Input circuit board; 22. Input connector;

[0037] 31. first output circuit board; 32. output connector; 33. second output circuit board; 41. power board; 42. first conversion module; 43. second conversion module; 44. connector; 45. power supply connector;

[0038] 111. Waterproof trough. DETAILED DESCRIPTION

[0039] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings, rather than all.

[0040] Some directional words are defined in the present utility model. Unless otherwise specified, the directional words used, such as "up", "down", "left", "right", "inside" and "outside", are used for ease of understanding and therefore do not constitute limitations on the protection scope of the present utility model.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] like Figure 1-Figure 6As shown, this embodiment provides a direction finding and positioning system, which includes an antenna control adapter 100, a data acquisition device 200, a radio frequency front-end module 300 and an antenna array module 400. The radio frequency front-end module 300 includes multiple radio frequency modules, each of which includes a radio frequency switch component. The antenna array module 400 includes multiple antenna vibrators, and the radio frequency switch components are arranged in a one-to-one correspondence with the antenna vibrators. The antenna control adapter 100 includes a shell 1, an input module 2, an output module 3 and a connecting board 5. The output module 3 includes multiple output connectors 32, and each output connector 32 and the input module 2 are installed on the shell 1. The input module 2 can be connected to the output interface of the data acquisition device 200, and each output connector 32 can be connected to the radio frequency switch component in a one-to-one correspondence. The connecting board 5 is connected to the input module 2 and the output module 3 respectively. The multiple antenna elements in the antenna array module 400 are all capable of receiving radio signals of all frequency bands. When a specific antenna element is required to convert the radio frequency signal into a specific frequency band, the data acquisition device 200 transmits the relevant information of the radio frequency signal of the specific frequency band to the input module 2 through the output interface of the data acquisition device 200, and then transmits the information to the output connector 32 corresponding to the specific antenna element through the connecting board 5, and then transmits the information to the corresponding radio frequency switch component, and selects the corresponding filter module of the specific antenna element through the radio frequency switch component to filter out radio frequency signals of other frequency bands, thereby realizing the function of converting the radio frequency signal of the specific antenna element into a specific frequency band. The control adapter is arranged between the data acquisition device 200 and the RF front-end module 300, and can select the RF switch component corresponding to the antenna array module 400, so that the data acquisition device 200 is connected to the control adapter through an output interface, and then the corresponding filter module is selected through multiple output connectors 32 to select the working frequency band, so that the data acquisition device 200 will not be inconvenient to connect due to the long distance from the antenna array module 400, thereby ensuring the smooth direction finding and positioning of the direction finding and positioning system.

[0044] like Figure 1 and Figure 2 As shown, the input module 2 includes an input connector 22 and an input circuit board 21. The input connector 22 is installed on the housing 1, and the input circuit board 21 is installed in the housing 1. The input connector 22 can be connected to the output interface of the data acquisition device 200. The input connector 22 is connected to the input circuit board 21, and the input circuit board 21 is connected to the output module 3 through the connecting board 5.

[0045] like Figure 2 As shown, the antenna control switching device 100 further includes a power button 6 , which is mounted on the housing 1 .

[0046] Furthermore, the antenna control switching device 100 also includes an indicator light 7, which is arranged on the power button 6 and is used to display the usage of the power supply.

[0047] Furthermore, the antenna control adapter 100 also includes a handle 8, which is arranged on the housing 1 to increase portability.

[0048] like Figure 3 and Figure 4 As shown, the output module 3 also includes an output circuit board assembly, each output connector 32 is connected to the output circuit board assembly, the output circuit board assembly is installed in the housing 1, and the output circuit board assembly is connected to the input circuit board 21 through the connecting plate 5 to realize information transmission and power supply. The setting of the connecting plate 5 saves the cable connection, makes the interior of the housing 1 tidy, and improves the reliability of the product.

[0049] In this embodiment, the output circuit board assembly includes a first output circuit board 31 and a second output circuit board 33, which are arranged opposite to each other, and the first output circuit board 31 and the second output circuit board 33 are both provided with output connectors 32, and connecting plates 5 are provided on both sides of the input circuit board 21, and the two connecting plates 5 are arranged in a one-to-one correspondence with the first output circuit board 31 and the second output circuit board 33, so as to reasonably utilize the space of each module in the housing 1 and improve the space utilization rate.

[0050] In this embodiment, the input circuit board 21, the first output circuit board 31, the second output circuit board 33 and the connecting board 5 can be integrally formed by a rigid-flexible board. The rigid-flexible board can be folded and bent to play a supporting role, saving assembly costs, reducing the risk of errors, and improving production efficiency.

[0051] Furthermore, the shell 1 includes a shell body 11 and a bottom shell 12. The bottom shell 12 is installed on the shell body 11. A waterproof groove 111 is opened on the shell body 11. A waterproof strip is arranged in the waterproof groove 111. The waterproof strip is arranged between the shell body 11 and the bottom shell 12 to play a good sealing role and can be waterproof and dustproof.

[0052] Furthermore, the antenna control switching device 100 further includes a power supply module 4, which includes a power supply board 41, and the power supply board 41 is connected to the input circuit board 21. The power supply board 41 is connected to the output circuit board through the input circuit board 21 and the connecting board 5 to realize power supply.

[0053] Furthermore, the power supply module 4 also includes a power supply connector 45 , which is mounted on the housing 1 and connected to the power board 41 .

[0054] like Figure 5As shown, the power supply module 4 further includes a first conversion module 42 and a second conversion module 43 for converting voltages. The first conversion module 42 and the second conversion module 43 are both installed on the power board 41 .

[0055] The first conversion module 42 is used to convert 220V into 12V, and the second conversion module 43 is used to convert 12V into 5V.

[0056] Furthermore, the power supply module 4 further includes a connector 44 , and the power board 41 is connected to the input circuit board 21 via the connector 44 .

[0057] In this embodiment, all internal circuit boards of the antenna control adapter 100 are designed to be connected by printed circuit board connectors, avoiding a large number of wiring inside the housing 1, improving product operating reliability, and reducing production difficulty and production cost.

[0058] like Figure 6 As shown, the RF front-end module 300 is multi-channel, each channel corresponds to an antenna element, and multiple selection filter modules of different frequency bands are arranged in each channel to select different working frequency bands.

[0059] Since each output connector 32 corresponds to a channel, based on the spatial arrangement of the housing 1 and the convenience of connection, two output circuit boards, a first output circuit board 31 and a second output circuit board 33, can be provided, and an equal number of output connectors 32 can be provided on the first output circuit board 31 and the second output circuit board 33, so that the output connectors 32 are connected one-to-one with the RF switch components.

[0060] In this embodiment, the RF front-end module 300 has twenty channels, each channel is provided with an RF module, the antenna array module 400 includes twenty antenna elements, ten output connectors 32 are provided on the first output circuit board 31 and the second output circuit board 33, and four selection filter modules of different frequency bands are provided in each channel: a first selection filter module, a second selection filter module, a third selection filter module and a fourth selection filter module. An RF switch component is also provided in each channel, and the RF switch component is used to select the selection filter module of a specific frequency band.

[0061] Furthermore, the RF switch component includes two RF switches, which are defined as RF switches SW1 and SW2 for easy distinction. Both RF switches SW1 and SW2 are four-select-one switches, corresponding to the selection and filtering modules of four different frequency bands, and are used to select one of the four selection and filtering modules of different frequency bands in each channel.

[0062] In order to facilitate the explanation of the working process of the direction-finding and positioning system, each RF module is defined as: RF module 001, RF module 002...RF module 020, each RF module includes two RF switches SW1 and SW2, four selection filter modules and a RF amplifier, the RF switch SW1 is connected to the antenna element and the four selection filter modules, the RF switch SW2 is connected to the four selection filter modules and the RF amplifier, the twenty antenna elements correspond to the twenty RF modules one by one, and each antenna element is defined as antenna element t1, antenna element t2...antenna element t20, and antenna element t1, antenna element t2...antenna element t20 can all receive radio signals of the entire frequency band.

[0063] To facilitate explanation of the working frequency band of selecting a specific frequency band, taking the specific antenna element as antenna element t1 and the specific working frequency band corresponding to the second selection filter module as an example, the data acquisition device 200 first locks the output connector 32 corresponding to the antenna element t1, and transmits the relevant information and instructions of the specific frequency band to the output connector 32 corresponding to the antenna element t1 in the antenna control adapter 100. The transmission route in the antenna control adapter 100 is: input connector 22-input circuit board 21-connecting board 5-output circuit board-output connector 32 corresponding to the antenna element t1, and then transmits the instructions to the RF switches SW1 and SW2 in the RF module 001, so that the RF switches SW1 and SW2 both select the second selection filter module. The second selection filter module can filter out the RF signals of other frequency bands in the antenna element t1, leaving the RF signals of the specific working frequency band to enter the RF amplifier for amplification and then output to the data acquisition device 200 for processing.

[0064] Although the utility model has been described in detail above by means of general description, specific implementation methods and tests, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. An antenna control switching device, characterized in that: include: Housing (1); An input module (2) mounted on the housing (1), the input module (2) being configured to be connectable to an output interface of a data acquisition device (200); An output module (3), comprising a plurality of output connectors (32), each of the output connectors (32) being mounted on the housing (1), each of the output connectors (32) being configured to be connected in a one-to-one correspondence with a radio frequency switch component in a radio frequency front-end module (300), and the radio frequency switch component being arranged in a one-to-one correspondence with an antenna element in an antenna array module (400); A connecting plate (5) is connected to the input module (2) and the output module (3) respectively.

2. The antenna control switching device according to claim 1, characterized in that: The input module (2) comprises an input connector (22) and an input circuit board (21); the input connector (22) is mounted on the housing (1); the input circuit board (21) is mounted in the housing (1); the input connector (22) can be connected to an output interface of a data acquisition device (200); the input connector (22) is connected to the input circuit board (21); and the input circuit board (21) is connected to the output module (3) via the connecting plate (5).

3. The antenna control switching device according to claim 2, characterized in that: The output module (3) further comprises an output circuit board assembly, each of the output connectors (32) is connected to the output circuit board assembly, the output circuit board assembly is installed in the housing (1), and the output circuit board assembly is connected to the input circuit board (21) via the connecting plate (5).

4. The antenna control switching device according to claim 3, characterized in that: The output circuit board assembly comprises a first output circuit board (31) and a second output circuit board (33); the first output circuit board (31) and the second output circuit board (33) are arranged opposite to each other; the first output circuit board (31) and the second output circuit board (33) are both provided with the output connector (32); the connecting boards (5) are both provided on both sides of the input circuit board (21); the two connecting boards (5) are arranged in one-to-one correspondence with the first output circuit board (31) and the second output circuit board (33).

5. The antenna control switching device according to claim 2, characterized in that: The antenna control switching device further comprises a power supply module (4), wherein the power supply module (4) comprises a power supply board (41), and the power supply board (41) is connected to the input circuit board (21).

6. The antenna control switching device according to claim 5, characterized in that: The power supply module (4) further comprises a power supply connector (45), wherein the power supply connector (45) is mounted on the housing (1), and the power supply connector (45) is connected to the power supply board (41).

7. The antenna control switching device according to claim 5, characterized in that: The power supply module (4) further comprises a first conversion module (42) and a second conversion module (43) for converting voltage, wherein the first conversion module (42) and the second conversion module (43) are both mounted on the power supply board (41).

8. The antenna control switching device according to claim 5, characterized in that: The power supply module (4) further comprises a connector (44), and the power board (41) is connected to the input circuit board (21) via the connector (44).

9. The antenna control switching device according to claim 1, characterized in that: The housing (1) comprises a housing body (11) and a bottom housing (12); the bottom housing (12) is mounted on the housing body (11); a waterproof groove (111) is provided on the housing body (11); a waterproof strip is provided in the waterproof groove (111); and the waterproof strip is provided between the housing body (11) and the bottom housing (12).

10. A direction finding and positioning system, characterized in that: include: The antenna control switching device (100) according to any one of claims 1 to 9; A data acquisition device (200), whose output interface can be connected to the input module (2); A radio frequency front-end module (300), comprising a plurality of radio frequency modules, each radio frequency module comprising a radio frequency switch component, and the output connector (32) being connectable to the radio frequency switch component in a one-to-one correspondence; The antenna array module (400) comprises a plurality of antenna elements, wherein the radio frequency switch components are arranged in a one-to-one correspondence with the antenna elements.

Images