Single Beidou high-precision positioning terminal based on frequency modulation broadcast communication

Abstract

The utility model discloses a single Beidou high-precision positioning terminal based on frequency modulation broadcast communication, which comprises a shell, a positioning antenna and an FM antenna, the positioning antenna and the FM antenna are arranged on the outer side of the shell, the positioning antenna is arranged on one side, deviating from the ground, of the shell, a control panel is arranged in the shell and comprises a signal switching module, a Bluetooth module and an FM module, and the signal switching module is connected with the Bluetooth module. The FM module and the Bluetooth module are connected with the FM antenna through the signal switching module, and the signal switching module is used for switching the FM antenna to be connected with the Bluetooth module or the FM module. In the technical scheme of the utility model, the signal switching module is used for switching the FM antenna 110 to be connected with the Bluetooth module or the FM module, so that the Bluetooth module or the FM module can share one antenna in different time periods during use, interference and suppression between antennas of two different modules are avoided, and the service life of the Bluetooth module or the FM module is prolonged. And the problem that one module cannot be used or is limited in use due to signal interference is prevented.

Description

Technical Field

[0001] This utility model relates to the field of positioning equipment, specifically to a single Beidou high-precision positioning terminal based on FM broadcast communication. Background Technology

[0002] A single BeiDou high-precision positioning terminal based on FM broadcast communication is applicable to BeiDou high-precision positioning systems based on BDS / FM-RTK FM broadcast transmission systems. The system utilizes the secondary channel (such as the SCA auxiliary channel) of an existing high-power FM broadcast transmitter to broadcast BeiDou differential signals. In this way, the BeiDou receiving terminal can receive RTK differential information transmitted via the broadcast transmitter while simultaneously receiving BeiDou satellite signals, thus achieving high-precision positioning. This scheme, which uses broadcast to publish RTK differential information, has advantages such as low site construction cost, short cycle time, wide coverage, and free use by the general public. However, existing positioning terminals are equipped with positioning antennas and FM antennas to simultaneously receive satellite positioning and FM signals, but other wireless transmission signals (such as Bluetooth and mobile communication technologies) are easily interfered with and suppressed, leading to problems such as unusability or limited use. Utility Model Content

[0003] The main purpose of this utility model is to provide a single Beidou high-precision positioning terminal based on FM broadcast communication, which aims to solve the problem that existing positioning terminals are equipped with positioning antennas and FM antennas in order to meet the requirements of simultaneously receiving satellite positioning, and that wireless transmission (such as Bluetooth and mobile communication technologies) is easily interfered with and suppressed, resulting in unusability or limited use.

[0004] To achieve the above objectives, this utility model proposes a single Beidou high-precision positioning terminal based on FM broadcast communication, including a positioning antenna and an FM antenna disposed on the outside of the housing. The positioning antenna is disposed on the side of the housing facing away from the ground. A control board is disposed inside the housing. The control board includes a signal switching module, a Bluetooth module, and an FM module. The FM module and the Bluetooth module are both connected to the FM antenna through the signal switching module. The signal switching module is used to switch the FM antenna to be connected to the Bluetooth module or the FM module.

[0005] Preferably, the control board further includes a mobile communication module, which is connected to the FM antenna through the signal switching module. The signal switching module is used to switch the FM antenna to be connected to the Bluetooth module, the FM module, or the mobile communication module.

[0006] Preferably, the control board further includes a first antenna, the FM antenna being connected to a first side of the housing, the first antenna being connected to a second side of the housing, the first side and the second side being arranged in parallel, the first antenna being connected to the Bluetooth module or the mobile communication module through the signal switching module, and the Bluetooth module or the mobile communication module being connected to the first antenna or the FM antenna through the signal switching module.

[0007] Preferably, the control board further includes a second antenna, which is connected to the third side of the housing. The first side and the third side are arranged perpendicularly. The first antenna is connected to either the Bluetooth module or the mobile communication module through the signal switching module, and the second antenna is connected to either the Bluetooth module or the mobile communication module through the signal switching module.

[0008] Preferably, a battery is disposed between the control board and the positioning antenna.

[0009] Preferably, a battery is disposed between the control board and the positioning antenna, and the second antenna is disposed on the side of the battery.

[0010] Preferably, the control board further includes a Wi-Fi module, which is connected to the FM antenna through the signal switching module. The signal switching module is used to switch the FM antenna to be connected to the Bluetooth module, the FM module, the mobile communication module, or the Wi-Fi module.

[0011] Preferably, a first interface is provided on the side of the housing facing the ground, and the axis of the first interface coincides with the polarization direction of the positioning antenna.

[0012] Preferably, a second interface is provided on the ground-facing side of the housing, and the second interface is located at the edge of the ground-facing side of the housing.

[0013] Preferably, the device includes a positioning antenna and an FM antenna disposed on the outside of the housing. The positioning antenna is disposed on the side of the housing facing away from the ground. A control board is disposed inside the housing. The control board includes a signal switching module and a mobile communication module. Both the FM module and the mobile communication module are connected to the FM antenna through the signal switching module. The signal switching module is used to switch the FM antenna to be connected to the mobile communication module or the FM module.

[0014] In the technical solution of this utility model, a signal switching module is used to switch the FM antenna 110 to be connected to the Bluetooth module or the FM module. Thus, when in use, the Bluetooth module or the FM module can share a single antenna in different time periods, thereby avoiding interference and suppression between the antennas of the two different modules and preventing the problem that one of the modules cannot be used or is limited in use due to signal interference. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a single Beidou high-precision positioning terminal based on FM broadcast communication according to this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of a single Beidou high-precision positioning terminal based on FM broadcast communication according to this utility model.

[0018] Figure 3 This is a top view of the structure of a single Beidou high-precision positioning terminal based on FM broadcast communication according to this utility model.

[0019] Explanation of icon numbers:

[0020] 100. Housing; 110. FM antenna; 120. Positioning antenna; 130. First side; 140. Second side; 150. Third side; 160. First interface; 170. Second interface; 200. Control board; 240. First antenna; 250. Second antenna; 300. Battery.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] Please refer to Figures 1-3 This utility model proposes a single Beidou high-precision positioning terminal based on FM broadcast communication, including a housing 100, a positioning antenna 120 and an FM antenna 110 disposed on the outside of the housing 100. The positioning antenna 120 is disposed on the side of the housing 100 facing away from the ground. A control board 200 is disposed inside the housing 100. The control board 200 includes a signal switching module, a Bluetooth module and an FM module. The FM module and the Bluetooth module are both connected to the FM antenna 110 through the signal switching module. The signal switching module is used to switch the FM antenna 110 to be connected to the Bluetooth module or the FM module.

[0028] In the technical solution of this utility model, a signal switching module is used to switch the FM antenna 110 to be connected to the Bluetooth module or the FM module. Thus, when in use, the Bluetooth module or the FM module can share a single antenna in different time periods, thereby avoiding interference and suppression between the antennas of the two different modules and preventing the problem that one of the modules cannot be used or is limited in use due to signal interference.

[0029] In another embodiment of this utility model, the control board 200 further includes a mobile communication module, which is connected to the FM antenna 110 through the signal switching module. The signal switching module is used to switch the FM antenna 110 to be connected to the Bluetooth module, the FM module, or the mobile communication module.

[0030] Specifically, the signal switching module is used to switch the FM antenna 110 to the Bluetooth module, FM module, or mobile communication module. The Bluetooth module, FM module, and mobile communication module share the same antenna in different time periods, thereby avoiding interference and suppression between the antennas of the two different modules.

[0031] More specifically, the mobile communication module includes a 4G mobile communication module.

[0032] More specifically, the side facing away from the ground in this application refers to the position when the device is in use or in a normal placement state.

[0033] In another embodiment of the present invention, the control board 200 further includes a first antenna 240. The FM antenna 110 is connected to a first side 130 of the housing 100, and the first antenna 240 is connected to a second side 140 of the housing 100. The first side 130 and the second side 140 are arranged in parallel. The first antenna 240 is connected to the Bluetooth module or the mobile communication module through the signal switching module. The Bluetooth module or the mobile communication module is connected to the first antenna 240 or the FM antenna 110 through the signal switching module.

[0034] Specifically, the FM antenna 110 is connected to the first side 130 of the housing 100, and the first antenna 240 is connected to the second side 140 of the housing 100, so that the polarization directions of the FM antenna 110 and the first antenna 240 are opposite, thereby avoiding and reducing mutual interference between the two antennas.

[0035] More specifically, the first antenna 240 includes an onboard antenna disposed on the control board 200.

[0036] In another embodiment of the present invention, the control board 200 further includes a first antenna 240, the FM antenna 110 is connected to a first side 130 of the housing 100, the first antenna 240 is connected to a second side 140 of the housing 100, the first side 130 and the second side 140 are arranged in parallel, the first antenna 240 is connected to the Bluetooth module through the signal switching module, and the Bluetooth module is connected to the first antenna 240 or the FM antenna 110 through the signal switching module.

[0037] In another embodiment of the present invention, the control board 200 further includes a first antenna 240, the FM antenna 110 is connected to a first side 130 of the housing 100, the first antenna 240 is connected to a second side 140 of the housing 100, the first side 130 and the second side 140 are arranged in parallel, the first antenna 240 is connected to the mobile communication module through the signal switching module, and the mobile communication module is connected to the first antenna 240 or the FM antenna 110 through the signal switching module.

[0038] In another embodiment of the present invention, the control board 200 further includes a second antenna 250, which is connected to the third side 150 of the housing 100. The first side 130 and the third side 150 are arranged perpendicularly. The first antenna 240 is connected to one of the Bluetooth module or the mobile communication module through the signal switching module, and the second antenna 250 is connected to the other of the Bluetooth module or the mobile communication module through the signal switching module.

[0039] Specifically, the second antenna 250 is connected to the third side 150 of the housing 100. The first side 130 and the third side 150 are arranged perpendicularly, so that the polarization direction of the second antenna 250 is perpendicular to the polarization direction of the FM antenna 110, thereby reducing mutual interference between the two antennas.

[0040] More specifically, the polarization direction includes the polarization line direction.

[0041] More specifically, the second antenna 250 includes a patch antenna disposed on the inner side of the housing 100.

[0042] In another embodiment of the present invention, the control board 200 further includes a second antenna 250, which is connected to the third side 150 of the housing 100. The first side 130 and the third side 150 are arranged perpendicularly. The first antenna 240 is connected to the Bluetooth module through the signal switching module, and the second antenna 250 is connected to the mobile communication module through the signal switching module.

[0043] In another embodiment of the present invention, the control board 200 further includes a second antenna 250, which is connected to the third side 150 of the housing 100. The first side 130 and the third side 150 are arranged perpendicularly. The first antenna 240 is connected to one of the mobile communication modules through the signal switching module, and the second antenna 250 is connected to the Bluetooth module through the signal switching module.

[0044] In another embodiment of this utility model, a battery 300 is disposed between the control board 200 and the positioning antenna 120.

[0045] Specifically, isolation is achieved through battery 300, thereby reducing interference between signals.

[0046] In another embodiment of the present invention, a battery 300 is disposed between the control board 200 and the positioning antenna 120, and the second antenna 250 is disposed on the side of the battery 300.

[0047] Specifically, isolation is achieved through battery 300, thereby reducing interference between signals.

[0048] In another embodiment of the present invention, the control board 200 further includes a Wi-Fi module, which is connected to the FM antenna 110 through the signal switching module. The signal switching module is used to switch the FM antenna 110 to be connected to the Bluetooth module, the FM module, the mobile communication module, or the Wi-Fi module.

[0049] Specifically, the signal switching module is used to switch the FM antenna 110 to the Bluetooth module, FM module, or Wi-Fi module. This allows the Bluetooth module, FM module, or Wi-Fi module to share the same antenna during different time periods, thus avoiding interference and suppression between the antennas of different modules and preventing one module from being unusable or having limited use due to signal interference.

[0050] More specifically, the received RTK (Real-Time Kinematic) positioning information can be broadcast via a Wi-Fi module and used as a positioning base station.

[0051] In another embodiment of the present invention, a first interface 160 is provided on the side of the housing 100 facing the ground, and the axis of the first interface 160 coincides with the polarization direction of the positioning antenna 120.

[0052] Specifically, for connecting the centering rod or positioning device, the alignment of the axis of the first interface 160 with the polarization direction of the positioning antenna 120 can reduce positioning errors.

[0053] In another embodiment of the present invention, a second interface 170 is provided on the side of the housing 100 facing the ground, and the second interface 170 is located on the edge of the side of the housing 100 facing the ground.

[0054] Specifically, the connection via the first interface 160 and the second interface 170 is more stable and can prevent the housing 100 from rotating.

[0055] More specifically, when using a handheld device, it can be connected to the handheld device through the second interface 170, so that the display screen is not obstructed during use, and interference between the signal and the handheld device is also reduced.

[0056] In another embodiment of the present invention, a second interface 170 is provided on the side of the housing 100 facing the ground, and the second interface 170 is located at the end of the side of the housing 100 facing the ground away from the second side 140.

[0057] Specifically, it reduces signal interference between handheld devices and the device described in this application.

[0058] A single Beidou high-precision positioning terminal based on FM broadcast communication is characterized by comprising a housing 100, a positioning antenna 120 and an FM antenna 110 disposed on the outside of the housing 100, the positioning antenna 120 being disposed on the side of the housing 100 facing away from the ground, and a control board 200 disposed inside the housing 100, the control board 200 comprising a signal switching module, a Bluetooth module and a mobile communication module, the FM module and the mobile communication module being connected to the FM antenna 110 through the signal switching module, the signal switching module being used to switch the FM antenna 110 connected to the mobile communication module or the FM module.

[0059] Specifically, the received RTK (Real-Time Kinematic) positioning information can be broadcast through the mobile communication module and used as a positioning base station.

[0060] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A single BeiDou high-precision positioning terminal based on FM broadcast communication, characterized in that, The device includes a positioning antenna and an FM antenna mounted on the outside of the housing. The positioning antenna is located on the side of the housing facing away from the ground. A control board is installed inside the housing. The control board includes a signal switching module, a Bluetooth module, and an FM module. The FM module and the Bluetooth module are both connected to the FM antenna through the signal switching module. The signal switching module is used to switch the FM antenna to be connected to the Bluetooth module or the FM module.

2. A single Beidou high-precision positioning terminal based on FM broadcast communication as described in claim 1, characterized in that, The control board also includes a mobile communication module, which is connected to an FM antenna via the signal switching module. The signal switching module is used to switch the FM antenna to be connected to the Bluetooth module, the FM module, or the mobile communication module.

3. A single Beidou high-precision positioning terminal based on FM broadcast communication as described in claim 2, characterized in that, The control board further includes a first antenna, the FM antenna being connected to a first side of the housing and a second side of the housing, the first side and the second side being arranged in parallel, the first antenna being connected to the Bluetooth module or the mobile communication module through the signal switching module, and the Bluetooth module or the mobile communication module being connected to the first antenna or the FM antenna through the signal switching module.

4. A single Beidou high-precision positioning terminal based on FM broadcast communication as described in claim 3, characterized in that, The control board also includes a second antenna, which is connected to the third side of the housing. The first side and the third side are arranged perpendicularly. The first antenna is connected to either the Bluetooth module or the mobile communication module through the signal switching module, and the second antenna is connected to either the Bluetooth module or the mobile communication module through the signal switching module.

5. A single Beidou high-precision positioning terminal based on FM broadcast communication as described in claim 1, characterized in that, A battery is disposed between the control board and the positioning antenna.

6. A single Beidou high-precision positioning terminal based on FM broadcast communication as described in claim 4, characterized in that, A battery is disposed between the control board and the positioning antenna, and the second antenna is disposed on the side of the battery.

7. A single Beidou high-precision positioning terminal based on FM broadcast communication as described in any one of claims 1-6, characterized in that, The control board also includes a Wi-Fi module, which is connected to an FM antenna via the signal switching module. The signal switching module is used to switch the FM antenna to be connected to either a Bluetooth module, an FM module, a mobile communication module, or a Wi-Fi module.

8. A single Beidou high-precision positioning terminal based on FM broadcast communication as described in any one of claims 1-6, characterized in that, The housing has a first interface on its side facing the ground, and the axis of the first interface coincides with the polarization direction of the positioning antenna.

9. A single Beidou high-precision positioning terminal based on FM broadcast communication as described in claim 8, characterized in that, The housing has a second interface on its ground-facing side, and the second interface is located at the edge of the ground-facing side of the housing.

10. A single BeiDou high-precision positioning terminal based on FM broadcast communication, characterized in that, The device includes a positioning antenna and an FM antenna mounted on the outside of the housing. The positioning antenna is located on the side of the housing facing away from the ground. A control board is installed inside the housing. The control board includes a signal switching module and a mobile communication module. Both the FM module and the mobile communication module are connected to the FM antenna through the signal switching module. The signal switching module is used to switch the connection of the FM antenna to the mobile communication module or the FM module.

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