Dual-mode antenna for Beidou satellite positioning

Abstract

The utility model provides a dual-mode antenna for Beidou satellite positioning, which comprises an antenna assembly and a dual-mode antenna module, and is characterized in that the antenna assembly comprises an antenna pedestal with a built-in buzzer, an end cover and a fixing rod; wherein the end cover is in threaded connection with the top of the antenna pedestal through a bolt, the fixing rod is in threaded connection with the bottom of the antenna pedestal, the dual-mode antenna module is installed on the upper surface of the antenna pedestal, and a sealing mechanism is installed at the bottom of the outer side wall of the antenna pedestal; through the built-in dual-mode antenna module, the communication antenna has a dual-mode communication function, the communication modes of the antenna are increased, the antenna has the characteristics of high gain and good signals, and then the sealing mechanism is used for improving the sealing performance between the fixed rod and the antenna pedestal, so that the communication efficiency is improved. Moreover, the antenna can be connected with external equipment through the six-core watertight joint, and the sealing performance of the connection part is improved, so that the antenna is more suitable for the marine environment, and the service life of the antenna is ensured.

Description

Technical Field

[0001] This utility model relates to a dual-mode antenna, specifically a dual-mode antenna for BeiDou satellite positioning, and belongs to the field of communication antenna technology. Background Technology

[0002] The BeiDou Navigation Satellite System (BDS) is a global satellite navigation system independently developed by China. After 30 years of development, it has evolved from its initial navigation and positioning functions into a shining star in the global satellite navigation field. The BeiDou system consists of three segments: space, ground, and user. It provides high-precision, high-reliability positioning, navigation, and timing services to global users around the clock, and also possesses short message communication capabilities. Its six satellite-based services and ground-based augmentation services achieve a high degree of integration of navigation and communication functions, meeting the diverse needs of users.

[0003] A communication antenna is a device used to transmit and receive radio waves in a wireless communication system, and it is an important component of the entire communication system. The function of an antenna is to convert electromagnetic waves from a transmitting device into radio waves in free space, or to convert received radio waves into electromagnetic waves for use by a receiving device.

[0004] Traditional communication antennas typically support only one communication mode, namely beacon mode or pure transparent transmission mode that relies on the BeiDou satellite communication protocol. The modes are relatively limited, and the sealing effect of traditional communication antennas is limited. When used in marine environments, they are easily corroded by seawater, which affects their service life. Therefore, a dual-mode antenna for BeiDou satellite positioning is proposed. Utility Model Content

[0005] In view of this, the present invention provides a dual-mode antenna for BeiDou satellite positioning to solve or alleviate the technical problems existing in the prior art, or at least provide a useful alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: a dual-mode antenna for Beidou satellite positioning, including an antenna assembly and a dual-mode antenna module, wherein the antenna assembly includes an antenna mount with a built-in buzzer, an end cap and a fixing rod;

[0007] The end cap is connected to the top of the antenna mount by bolts and threads, the fixing rod is connected to the bottom of the antenna mount by threads, the dual-mode antenna module is installed on the upper surface of the antenna mount, a sealing mechanism is installed at the bottom of the outer side wall of the antenna mount, and a six-core watertight connector is installed at the bottom of the antenna mount.

[0008] The dual-mode antenna module uses BeiDou-3 satellites for communication and supports both transparent transmission mode and beacon mode. The dual-mode antenna module includes an integrated base, an antenna circuit board, and two coils.

[0009] The integrated base is mounted on the upper surface of the antenna base, the antenna circuit board is mounted on one side of the upper surface of the integrated base, both coils are mounted on the upper surface of the antenna circuit board, and the six-core watertight connector is electrically connected to the integrated base through a wire.

[0010] The sealing mechanism is used to improve the sealing effect between the fixing rod and the antenna mount;

[0011] The six-core watertight connector is used to electrically connect the antenna to external equipment and improve the sealing of the connection.

[0012] More preferably, the dual-mode antenna module further includes a SIM card slot and a SIM card body;

[0013] The SIM card holder is installed on one side of the upper surface of the integrated base, and the SIM card body is inserted into the inner side wall of the SIM card holder.

[0014] More preferably, the sealing mechanism includes a T-shaped sleeve, a hollow rubber ring, a spring, a limiting groove, and a sealing gasket;

[0015] The limiting groove is located at the bottom of the antenna base, the top of the T-shaped sleeve is slidably connected to the inner wall of the limiting groove, and the hollow rubber ring is fixedly connected between the T-shaped sleeve and the antenna base.

[0016] More preferably, one end of the spring is fixedly connected to the top of the inner wall of the limiting groove, the other end of the spring is fixedly connected to the top of the T-shaped sleeve, and the sealing gasket is fixedly connected to the bottom of the inner wall of the antenna mount.

[0017] More preferably, six indicator lights are symmetrically installed on one side of the inner wall of the antenna mount;

[0018] The six indicator lights are used to indicate power status, data transmission status, data reception status, positioning status, Bluetooth connection strength, and working status, respectively.

[0019] More preferably, the outer side wall of the fixing rod is symmetrically provided with three clamping grooves, and the bottom of the outer side wall of the fixing rod is symmetrically provided with two through holes.

[0020] More preferably, the bottom of the outer side wall of the antenna mount is provided with a threaded portion, the top of the inner side wall of the fixing rod is threadedly connected to the threaded portion, and a sealing ring is fixedly connected to the upper surface of the antenna mount.

[0021] More preferably, the dual-mode antenna module also supports signal strength query, heartbeat mode, networking mode and shore-based mode;

[0022] The six-core watertight connector includes four electrical interfaces: VCC, GND, TX(B), and RX(A).

[0023] There are two VCC and two GND interfaces.

[0024] The present invention has the following advantages due to the adoption of the above technical solutions: The present invention enables the communication antenna to have dual-mode communication function by building a dual-mode antenna module, which increases the communication modes of the antenna and makes the antenna have the characteristics of high gain and good signal. Then, the sealing mechanism is set to improve the sealing between the fixing rod and the antenna base. The antenna can be connected to external equipment through a six-core watertight connector, and the sealing of the connection is improved, so that the antenna is more suitable for marine environment and ensures the service life of the antenna.

[0025] The above overview is for illustrative purposes only and is not intended to limit the scope of the invention in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural diagram of the present invention;

[0028] Figure 2 This is an axonometric view of the antenna mount of this utility model;

[0029] Figure 3 This is a bottom view of the antenna mount of this utility model.

[0030] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0031] Figure 5 This utility model Figure 4 Enlarged schematic diagram of area A structure;

[0032] Figure 6 This is a physical image of the device using clamps for installation according to this utility model;

[0033] Figure 7 This is a physical image of the present invention, which is installed using screws.

[0034] Reference numerals: 1. Antenna assembly; 2. Dual-mode antenna module; 3. Sealing mechanism; 4. Six-core watertight connector; 101. Antenna base; 102. End cap; 103. Fixing rod; 201. Integrated base; 202. SIM card slot; 203. Antenna circuit board; 204. Coil; 205. SIM card body; 301. T-shaped sleeve; 302. Hollow rubber ring; 303. Spring; 304. Limiting groove; 305. Sealing gasket; 51. Indicator light body; 52. Clamp groove; 53. Through hole; 54. Threaded part; 55. Sealing ring. Detailed Implementation

[0035] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0036] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0037] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0038] like Figures 1-4 As shown, this utility model embodiment provides a dual-mode antenna for BeiDou satellite positioning, including an antenna assembly 1 and a dual-mode antenna module 2. The antenna assembly 1 includes an antenna mount 101 with a built-in buzzer, an end cap 102, and a fixing rod 103.

[0039] Among them, the end cap 102 is connected to the top of the antenna base 101 by bolt thread, the fixing rod 103 is threaded to the bottom of the antenna base 101, the dual-mode antenna module 2 is installed on the upper surface of the antenna base 101, the bottom of the outer side wall of the antenna base 101 is equipped with a sealing mechanism 3, and the bottom of the antenna base 101 is equipped with a six-core watertight connector 4.

[0040] Among them, the dual-mode antenna module 2 uses Beidou-3 satellites for communication and supports transparent transmission mode and beacon mode. The dual-mode antenna module 2 includes an integrated base 201, an antenna circuit board 203 and two coils 204.

[0041] The integrated base 201 is mounted on the upper surface of the antenna base 101, the antenna circuit board 203 is mounted on one side of the upper surface of the integrated base 201, the two coils 204 are both mounted on the upper surface of the antenna circuit board 203, and the six-core watertight connector 4 is electrically connected to the integrated base 201 through a wire.

[0042] Among them, the sealing mechanism 3 is used to improve the sealing effect between the fixing rod 103 and the antenna mount 101;

[0043] Among them, the six-core watertight connector 4 is used to make electrical connections between the antenna and external equipment and to improve the sealing of the connection.

[0044] In one embodiment, the dual-mode antenna module 2 further includes a SIM card slot 202 and a SIM card body 205;

[0045] The SIM card holder 202 is installed on one side of the upper surface of the integrated base 201, and the SIM card body 205 is inserted into the inner wall of the SIM card holder 202.

[0046] The SIM card holder 202 is used to connect the SIM card body 205 and the integrated base 201, and to limit the position of the SIM card body 205.

[0047] In one embodiment, the sealing mechanism 3 includes a T-shaped sleeve 301, a hollow rubber ring 302, a spring 303, a limiting groove 304, and a sealing gasket 305;

[0048] The limiting groove 304 is located at the bottom of the antenna base 101. The top of the T-shaped sleeve 301 is slidably connected to the inner wall of the limiting groove 304. The hollow rubber ring 302 is fixedly connected between the T-shaped sleeve 301 and the antenna base 101. One end of the spring 303 is fixedly connected to the top of the inner wall of the limiting groove 304, and the other end of the spring 303 is fixedly connected to the top of the T-shaped sleeve 301. The sealing gasket 305 is fixedly connected to the bottom of the inner wall of the antenna base 101.

[0049] The antenna mount 101 drives the T-shaped sleeve 301 to contact the inner wall of the fixing rod 103. Then, the fixing rod 103 limits the downward movement of the T-shaped sleeve 301. The antenna mount 101 continues to move, driving the limiting groove 304 and the hollow rubber ring 302 to move. The moving limiting groove 304 is compressed, and the moving hollow rubber ring 302 deforms under pressure, squeezing the inner wall of the fixing rod 103.

[0050] In one embodiment, six indicator lights 51 are symmetrically mounted on one side of the inner wall of the antenna mount 101;

[0051] Among them, the six indicator lights 51 are used to indicate the power status, data transmission status, data reception status, positioning status, Bluetooth connection strength and working status, respectively.

[0052] After power-on, the "Power Status" indicator light remains constantly on, while the "Data Transmission Status," "Data Reception Status," and "Operating Status" indicator lights up for 2 seconds and then turns off. The antenna then enters operating mode, and the "Operating Status" indicator light flashes at a 2-second interval (1 second on, 1 second off). At this point, the antenna has completed initialization and awaits commands. The specific descriptions of each indicator light are shown in the table below:

[0053]

[0054] In one embodiment, the outer side wall of the fixing rod 103 is symmetrically provided with three clamping grooves 52, the bottom of the outer side wall of the fixing rod 103 is symmetrically provided with two through holes 53, the bottom of the outer side wall of the antenna base 101 is provided with a threaded part 54, the top of the inner side wall of the fixing rod 103 is threadedly connected to the threaded part 54, and a sealing ring 55 is fixedly connected to the upper surface of the antenna base 101.

[0055] The clamp groove 52 and through hole 53 provide different installation methods for the fixing rod 103. The threaded part 54 is provided to connect the antenna mount 101 and the fixing rod 103 by means of threads. The sealing ring 55 is provided to improve the sealing between the antenna mount 101 and the end cover 102.

[0056] In one embodiment, the dual-mode antenna module 2 also supports signal strength query, heartbeat mode, networking mode and shore-based mode;

[0057] Signal strength query: This can be divided into three states: single signal strength query, continuous signal strength query, and exit signal strength query. A single signal strength query can only query the signal strength once; a continuous signal strength query will continuously query the signal strength with a query interval of 1 second; to end the continuous signal strength query, you must use the exit signal strength query state. After exiting, the device will enter a silent state and wait for commands. The specific commands and protocol formats are shown in the table below:

[0058]

[0059]

[0060] After the BeiDou signal strength query command is initiated, the returned signal strength is shown in the table below:

[0061]

[0062] The BeiDou signal strength only reflects a relative signal strength status and cannot be equated with successful BeiDou communication. Successful BeiDou communication requires consideration of multiple factors, such as power supply and card capabilities. If signal strength acquisition fails, the command "$II TE,,,,,,,,*" will be returned.

[0063] Pass-through mode:

[0064] Regarding data transmission: In transparent transmission mode, after the antenna is correctly connected to the host computer, the host computer can send data to the antenna via serial port. The antenna analyzes and processes the data before transmitting it to the satellite. Specifically, when the antenna receives serial data from the host computer, the transmit indicator light stays on for one second and then turns off. If the data is received correctly, the buzzer sounds a long beep; if there is an error, the buzzer sounds two short beeps. Simultaneously, the serial port outputs the corresponding receipt information, as shown in the table below:

[0065]

[0066]

[0067] Furthermore, a message caching mechanism is introduced on top of the transparent transmission function. This means that users are not restricted by the communication frequency of the BeiDou card and can send message messages to the antenna multiple times consecutively. After receiving the message, the module adds it to the cache queue and sends it one by one in order, reducing the time users wait for the BeiDou communication interval and improving transmission efficiency.

[0068] Regarding data reception: In transparent transmission mode, if a message is sent to the antenna via satellite, the antenna receives the message and sends it back to the host computer via serial port, without any operation from the host computer. The received message has no additional protocol encapsulation, achieving truly transparent transmission. Specifically, after receiving a message from the BeiDou terminal, the device will beep three times at intervals, and the receive indicator light will remain on for one second before turning off. The received satellite message will then be sent to the host computer via serial port.

[0069] Beacon Mode: The antenna can enter beacon mode via command. Once in beacon mode, the antenna can periodically transmit its current location coordinates (time, longitude, latitude, speed, heading) back to the designated BeiDou receiver, and simultaneously transmit this coordinate information back to the host computer via serial port. After starting beacon mode, the operation light illuminates for 100ms and then turns off for 1.8s. The specific commands and protocol formats are shown in the table below:

[0070]

[0071] The corresponding response receipt commands are shown in the table below:

[0072]

[0073] In beacon mode, the local location information received is in the format shown in the table below:

[0074]

[0075] In beacon mode, pass-through is disabled; to enable pass-through, beacon mode must be turned off first.

[0076] Heartbeat mode: The antenna comes with a built-in heartbeat function, which actively reports a set of message information to the receiving end at regular intervals when the power is continuously on.

[0077] Networking mode: The antenna supports networking among multiple devices, meaning that if one device receives short message data, other devices in the network can also receive it.

[0078] Shore-based mode: To meet the data reception needs of shore-based monitoring terminals, the antenna has a built-in shore-based mode. After the shore-based mode is activated, the antenna can send key information such as current positioning, BeiDou signal, and current parameters to the host computer in real time via the local serial port, and display it to the user in a visual interface, making it convenient for users to receive and monitor satellite data at the shore-based end.

[0079] The six-core watertight connector 4 includes four electrical interfaces: VCC, GND, TX(B), and RX(A); among them, there are two VCC and two GND interfaces.

[0080] Serial Number Interface Function Interface Description 1 VCC +6~+24VDC 2 GND 0V 3 GND 0V 4 VCC +6~+24VDC 5 TX(B) Connect to an external host computer via RS232-TX or RS485-B. 6 RX(A) Connect to an external host computer via RS232-RX or RS485-A.

[0081] In operation, this utility model works as follows: by opening the end cover 102, the SIM card body 205 is inserted into the end cover 102. Then, the end cover 102 is moved to close, so as to connect the SIM card body 205 with the integrated base 201 and limit the SIM card body 205. Then, the end cover 102 is moved to close the antenna base 101, and bolts are used to connect the antenna base 101 and the end cover 102, so as to fasten the antenna base 101 and the end cover 102 with bolts. During the fastening process, the end cover 102 is used to compress the sealing ring 55, so as to ensure the sealing between the end cover 102 and the antenna base 101 with the sealing ring 55. After the fastening operation is completed, the antenna assembly operation is completed.

[0082] When installation is required between the fixing rod 103 and the antenna mount 101, the antenna mount 101 is moved to drive the six-core watertight connector 4 into the fixing rod 103. The antenna mount 101 is then rotated to connect with the inner wall of the fixing rod 103 via the threaded portion 54. When the moving antenna mount 101 causes the T-shaped sleeve 301 to contact the inner wall of the fixing rod 103, the fixing rod 103 limits the downward movement of the T-shaped sleeve 301. Then, the continuing movement of the antenna mount 101 drives the limiting groove 304 and the hollow rubber ring 302 to move. The moving limiting groove 304 is compressed, and the moving hollow rubber ring... The rubber ring 302 deforms under pressure, squeezing the inner wall of the fixing rod 103 to improve the sealing between the fixing rod 103 and the antenna mount 101. Then, the continuing movement of the antenna mount 101 drives the sealing gasket 305 to squeeze the top of the fixing rod 103, so that the sealing gasket 305 can improve the sealing effect between the antenna mount 101 and the top of the fixing rod 103. This creates a sealed space between the sealing gasket 305 and the hollow rubber ring 302 to protect the internal threads and threaded portion 54 of the fixing rod 103, preventing seawater corrosion that would prevent the antenna mount 101 from being removed from the fixing rod 103.

[0083] When the antenna needs to be installed and used, the installation method of the fixing rod 103 is selected according to the installation environment. When it is necessary to use clamps to install and fix the fixing rod 103, the clamps are limited on the fixing rod 103 by using the clamp slot 52, and then the clamps are installed on the fixing platform by screws. The specific installation effect is as follows. Figure 6 As shown; when it is necessary to use screws to fix the fixing rod 103, first insert the fixing rod 103 into the fixing platform, and then use screws to fix it to the fixing platform through the through hole 53, so that the fixing rod 103 can be installed on the fixing platform using screws. The specific installation effect is as follows. Figure 7 As shown.

[0084] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A dual-mode antenna for BeiDou satellite positioning, comprising an antenna assembly (1) and a dual-mode antenna module (2), characterized in that, The antenna assembly (1) includes an antenna mount (101) with a built-in buzzer, an end cap (102), and a fixing rod (103); The end cap (102) is connected to the top of the antenna base (101) by bolt thread, the fixing rod (103) is threaded to the bottom of the antenna base (101), the dual-mode antenna module (2) is installed on the upper surface of the antenna base (101), a sealing mechanism (3) is installed at the bottom of the outer side wall of the antenna base (101), and a six-core watertight connector (4) is installed at the bottom of the antenna base (101). The dual-mode antenna module (2) uses Beidou-3 satellites for communication and supports transparent transmission mode and beacon mode. The dual-mode antenna module (2) includes an integrated base (201), an antenna circuit board (203), and two coils (204). The integrated base (201) is mounted on the upper surface of the antenna base (101), the antenna circuit board (203) is mounted on one side of the upper surface of the integrated base (201), the two coils (204) are both mounted on the upper surface of the antenna circuit board (203), and the six-core watertight connector (4) is electrically connected to the integrated base (201) through a wire. The sealing mechanism (3) is used to improve the sealing effect between the fixing rod (103) and the antenna mount (101); The six-core watertight connector (4) is used to electrically connect the antenna to external equipment and improve the sealing of the connection.

2. The dual-mode antenna for BeiDou satellite positioning according to claim 1, characterized in that: The dual-mode antenna module (2) also includes a SIM card slot (202) and a SIM card body (205); The SIM card holder (202) is installed on one side of the upper surface of the integrated base (201), and the SIM card body (205) is inserted into the inner side wall of the SIM card holder (202).

3. The dual-mode antenna for BeiDou satellite positioning according to claim 1, characterized in that: The sealing mechanism (3) includes a T-shaped sleeve (301), a hollow rubber ring (302), a spring (303), a limiting groove (304), and a sealing gasket (305); The limiting groove (304) is located at the bottom of the antenna base (101), the top of the T-shaped sleeve (301) is slidably connected to the inner wall of the limiting groove (304), and the hollow rubber ring (302) is fixedly connected between the T-shaped sleeve (301) and the antenna base (101).

4. The dual-mode antenna for BeiDou satellite positioning according to claim 3, characterized in that: One end of the spring (303) is fixedly connected to the top of the inner wall of the limiting groove (304), the other end of the spring (303) is fixedly connected to the top of the T-shaped sleeve (301), and the sealing gasket (305) is fixedly connected to the bottom of the inner wall of the antenna mount (101).

5. The dual-mode antenna for BeiDou satellite positioning according to claim 1, characterized in that: Six indicator lights (51) are symmetrically installed on one side of the inner wall of the antenna mount (101); The six indicator lights (51) are used to indicate the power status, data transmission status, data reception status, positioning status, Bluetooth connection strength, and working status, respectively.

6. The dual-mode antenna for BeiDou satellite positioning according to claim 1, characterized in that: The outer side wall of the fixing rod (103) is symmetrically provided with three clamping grooves (52), and the bottom of the outer side wall of the fixing rod (103) is symmetrically provided with two through holes (53).

7. The dual-mode antenna for BeiDou satellite positioning according to claim 1, characterized in that: The antenna mount (101) has a threaded part (54) at the bottom of its outer side wall, and the top of the inner side wall of the fixing rod (103) is threaded to the threaded part (54). A sealing ring (55) is fixedly connected to the upper surface of the antenna mount (101).

8. The dual-mode antenna for BeiDou satellite positioning according to claim 1, characterized in that: The dual-mode antenna module (2) also supports signal strength query, heartbeat mode, networking mode and shore-based mode; The six-core watertight connector (4) includes four electrical interfaces, namely VCC, GND, TX(B) and RX(A); There are two VCC and two GND interfaces.

Images