Roadside unit

Abstract

The utility model relates to the technical field of radio frequency identification, and provides a road side unit, which comprises a mounting seat, a control module, two antenna modules and an angle adjusting device, the two antenna modules are mounted on the mounting seat and are respectively and electrically connected with the control module, and the angle adjusting device is electrically connected with the control module. The control module is used for controlling the antenna module to be switched into one of a transmitting mode and a receiving mode; and the angle adjusting device is mounted on the mounting seat and is used for adjusting the mounting angle of the at least one antenna module. Wherein the two antenna modules enlarge the radiation area, the angle adjusting device can adjust at least one of the two antenna modules and change the installation angle of the antenna modules, and then the radiation area is adjusted according to an application scene so as to cover a transaction area, the applicability is high, the application scene of the road side unit is expanded, for example, the large-area application requirement of a tunnel is met, and the application range of the road side unit is widened. The convenience and precision of RSU installation are greatly improved, and the installation working hours are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency identification, in particular to a roadside unit. Background Art

[0002] The Electronic Toll Collection system (ETC system) can use dedicated short range communication technology (DSRC) to complete two-way communication between the road side unit (RSU) and the on-board unit (OBU), perform security authentication and consumption deductions wirelessly, and realize non-stop toll collection, which greatly speeds up vehicle passage, reduces congestion at toll ramps, and improves the transportation capacity of highways.

[0003] However, the existing roadside units have a fixed and single radiation area and are applicable to few application scenarios. Utility Model Content

[0004] The utility model aims to provide a roadside unit, aiming to solve the technical problem that the radiation area of ​​the existing roadside unit is fixed and single.

[0005] The present application provides a roadside unit, the roadside unit comprising:

[0006] Mounting seat;

[0007] Control module;

[0008] Two antenna modules, the antenna modules are mounted on the mounting base, the two antenna modules are electrically connected to the control module respectively, and the control module is used to control the antenna modules to switch to one of a transmitting mode and a receiving mode;

[0009] An angle adjustment device is installed on the mounting seat, and is used to adjust the installation angle of at least one of the antenna modules.

[0010] In one embodiment, the angle adjustment device includes a first bracket, a second bracket and a third bracket, the first bracket is used to install the antenna module, the first bracket is rotatably connected to the second bracket around a first axis, the second bracket is installed on the third bracket, and the third bracket is installed on the mounting base.

[0011] In one embodiment, the second bracket includes a connecting plate and a first ear plate connected to each other, the first ear plate has a first axial hole passing through the first ear plate along the first axis, and the first ear plate is rotatably connected to the first bracket through the first axial hole.

[0012] In one embodiment, the first ear plate has first arc-shaped angular scales distributed circumferentially around the first axis.

[0013] In one embodiment, the first ear plate has a first arc-shaped groove distributed circumferentially around the first axis, and the first bracket has a first indicating portion, and the first indicating portion is slidably disposed in the first arc-shaped groove.

[0014] In one embodiment, the number of the first ear plates is two, and the two first ear plates are located on opposite sides of the connecting plate.

[0015] In one of the embodiments, the first ear plate is located on a side of the connecting plate away from the mounting seat.

[0016] In one embodiment, the connecting plate and the first ear plate are integrally bent and formed.

[0017] In one of the embodiments, the connecting plate has a first wire hole penetrating the connecting plate along a thickness direction of the connecting plate, and the first wire hole is used for allowing the radio frequency wire to pass through.

[0018] In one embodiment, the second bracket is rotatably mounted on the third bracket around a second axis, and the second axis is different from the first axis.

[0019] In one embodiment, the second bracket includes a connecting plate and a second ear plate connected to each other, the second ear plate has a second axial hole passing through the second ear plate along the second axis, and the second ear plate is rotatably mounted on the third bracket through the second axial hole.

[0020] In one embodiment, the second ear plate has second arc-shaped angular scales distributed circumferentially around the second axis.

[0021] In one embodiment, the second ear plate has a second arc-shaped groove distributed circumferentially around the second axis, and the third bracket has a second indicating portion, and the second indicating portion is slidably disposed in the second arc-shaped groove.

[0022] In one embodiment, the number of the second ear plates is two, and the two second ear plates are located on opposite sides of the connecting plate.

[0023] In one embodiment, the second ear plate is located on a side of the connecting plate close to the mounting seat.

[0024] In one embodiment, the second ear plate and the connecting plate are integrally bent and formed.

[0025] In one embodiment, the first bracket includes a first mounting plate and a third ear plate, the first mounting plate is mounted on the antenna module, the third ear plate is connected to the first mounting plate and is located on a side of the first mounting plate away from the antenna module, and the third ear plate is used to be rotatably connected to the second bracket along the first axis.

[0026] In one of the embodiments, the third ear plate has a third axial hole penetrating the third ear plate along the first axis.

[0027] In one embodiment, the number of the third ear plates is two, and the two third ear plates are located on opposite sides of the first mounting plate.

[0028] In one embodiment, the third ear plate and the first mounting plate are integrally bent and formed.

[0029] In one embodiment, the first mounting plate has a through second wire hole, and the second wire hole is used for allowing the radio frequency wire to pass through.

[0030] In one embodiment, the third bracket includes a second mounting plate and a fourth ear plate, the second mounting plate is mounted on the mounting base, the fourth ear plate is connected to the second mounting plate and is located on a side of the second mounting plate away from the mounting base, and the fourth ear plate is used to connect to the second bracket.

[0031] In one embodiment, the fourth ear plate has a fourth axial hole penetrating the fourth ear plate along the second axis, and the fourth ear plate is rotatably connected to the second bracket through the fourth axial hole;

[0032] In one embodiment, the number of the fourth ear plates is two, and the two fourth ear plates are located on opposite sides of the second mounting plate.

[0033] In one embodiment, the fourth ear plate and the second mounting plate are integrally bent and formed.

[0034] In one embodiment, the second mounting plate has a through third wire hole, and the third wire hole is used for allowing the radio frequency wire to pass through.

[0035] The beneficial effects of the roadside unit provided by the utility model are as follows: the roadside unit has two antenna modules, and the two antenna modules can be switched to one of the transmission mode and the receiving mode under the control of the control module. The two antenna modules can respectively transmit signals to the OBU and receive OBU signals at the same time, thereby realizing the RSU full-duplex working mode and greatly improving the transaction efficiency. Alternatively, signals can be transmitted to the OBU at the same time to expand the radiation area, avoid transaction blind spots, and reduce the risk of transaction failure. In addition, the two antenna modules increase the radiation area, and the angle adjustment device can adjust at least one of the two antenna modules to change its installation angle, thereby adjusting the radiation area according to the application scenario to cover the transaction area. It has strong applicability and solves the technical problem that the existing roadside unit radiation area is fixed and single, thereby expanding the application scenario of the roadside unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 A schematic diagram of the structure of a roadside unit provided in an embodiment of the utility model;

[0038] Figure 2 A schematic diagram of the radiation area of ​​a roadside unit provided in an embodiment of the utility model;

[0039] Figure 3 A schematic diagram of the installation of the angle adjustment device and antenna module of the roadside unit provided in the embodiment;

[0040] Figure 4 A schematic diagram of the structure of the angle adjustment device of the roadside unit provided in the embodiment;

[0041] Figure 5 for Figure 4 A schematic structural diagram of a first bracket of the angle adjustment device;

[0042] Figure 6 for Figure 4 A schematic structural diagram of a second bracket of the angle adjustment device;

[0043] Figure 7 for Figure 4 Schematic diagram of the structure of the third bracket of the angle adjustment device.

[0044] Among them, the reference numerals in the figure are:

[0045] 10. Mounting seat;

[0046] 20. Control module;

[0047] 30. Antenna module;

[0048] 40. Angle adjustment device; 401. First axis; 402. Second axis; 410. First bracket; 411. First mounting plate; 4111. Second line hole; 4112. First mounting hole; 412. Third ear plate; 4121. First indication portion; 4122. Third axis hole; 420. Second bracket; 421. Connecting plate; 4211. First line hole; 422. First ear plate; 4221. First axis hole; 4222. First arc angle scale; 4223. First arc groove; 423. Second ear plate; 4231. Second axis hole; 4232. Second arc angle scale; 4233. Second arc groove; 430. Third bracket; 431. Second mounting plate; 4311. Third line hole; 4312. Second mounting hole; 432. Fourth ear plate; 4321. Second indication portion; 4322. Fourth axis hole;

[0049] 50. Adapter board. DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0051] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0052] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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.

[0055] The existing roadside unit only includes one antenna transceiver unit, and the antenna transceiver unit is fixedly installed on the mounting base. The existing roadside unit has the following defects: First, the installation angle of the antenna transceiver unit is single, the internal layout of the mounting base is single and inflexible, and the construction personnel need to ensure a high installation accuracy when installing the mounting base and the antenna transceiver unit to ensure that the radiation area of ​​the antenna transceiver unit covers the required transaction area, resulting in inconvenient installation and high installation time. Second, considering that the radiation area of ​​the antenna transceiver unit is an elliptical fixed area, the radiation area is small, and the application scenario is single, resulting in more transaction blind spots in the traditional roadside unit and the OBU transaction area during actual use, and there is a risk of transaction failure. Third, because the traditional roadside unit has only one antenna transceiver unit, the process of transmitting and receiving OBU signals cannot be carried out simultaneously, the transaction efficiency is low, and there is a time difference in the process of switching transmission and reception. It is also possible that the OBU just enters the transaction blind spot within this time difference, further increasing the risk of transaction failure.

[0056] To this end, combined Figure 1 This embodiment provides a roadside unit, including a mounting base 10, a control module 20, an antenna module 30 and an angle adjustment device 40. There are two antenna modules 30, which are mounted on the mounting base 10. The two antenna modules 30 are electrically connected to the control module 20 respectively, and the control module 20 is used to control the antenna module 30 to switch to one of the transmission mode and the reception mode. The angle adjustment device 40 is mounted on the mounting base 10, and the angle adjustment device 40 is used to adjust the installation angle of at least one antenna module 30.

[0057] The roadside unit has two antenna modules 30, which can be switched to one of the transmission mode and the reception mode under the control of the control module 20. The two antenna modules 30 can transmit signals to and receive signals from the OBU at the same time, respectively, to achieve the full-duplex working mode of the RSU, greatly improving the transaction efficiency. Alternatively, the two antenna modules 30 can transmit signals to the OBU at the same time to expand the radiation area, avoid transaction blind spots, and reduce the risk of transaction failure. In addition, combined with Figure 2 The two antenna modules 30 increase the radiation area, wherein the radiation area of ​​one antenna module 30 is the first area, and the radiation area of ​​the other antenna module 30 is the second area, so as to achieve wide-angle radiation and meet the application requirements of large areas such as tunnels. The angle adjustment device 40 can adjust at least one of the two antenna modules 30 to change its installation angle, and then adjust the radiation area according to the application scenario to cover the transaction area. It has strong applicability and solves the technical problem that the radiation area of ​​the existing roadside unit is fixed and single, thereby expanding the application scenario of the roadside unit.

[0058] In addition, since the installation angle of at least one antenna module 30 is adjustable, the installation requirements and installation accuracy of the mounting base 10 are reduced, and different installation angles, such as different pitch angles and horizontal angles, can be adapted according to different application scenarios. The angle adjustment device 40 is used to realize the adaptive angle adjustment of the antenna module 30, so that the radiation area of ​​the antenna module 30 covers the transaction area. Therefore, in the application scenario, the mounting base 10 of the roadside unit can be installed upright, and there is no need to roughly adjust and estimate the horizontal angle and pitch angle of the mounting base 10, which greatly improves the installation convenience and accuracy of the roadside unit, reduces the installation time of the roadside unit, reduces the installation error of the mounting base 10, and the installation angle of the antenna module 30 is adjustable, so that the internal layout of the mounting base 10 is flexible and changeable, and the application scenario is expanded.

[0059] In some embodiments, in combination Figure 1 The mounting seat 10 is a shell, and the control module 20, the antenna module 30 and the angle adjustment device 40 are installed in the shell, and the shell protects the control module 20, the antenna module 30 and the angle adjustment device 40.

[0060] Specifically, one side of the mounting base 10 has an opening, and the antenna module 30 faces the opening to facilitate the transmission and reception of signals.

[0061] In this embodiment, the control module 20 can be installed on the mounting base 10 or located outside the mounting base 10, and is electrically connected to the antenna module 30 through wires or wireless communication, which is not limited here.

[0062] In some embodiments, the control module 20 may include two main control modules, and the two main control modules correspond to the two antenna modules 30 one by one, respectively. The first main control module controls the first antenna module 30, and the second main control module controls the second antenna module 30. The two main control modules are connected to each other in communication to obtain the current working state of the other main control module. For example, to realize the full-duplex working mode of RSU, when the first main control module controls the first antenna module 30 to switch to the transmission mode, the second main control module obtains the current working state of the first main control module through the communication connection, and controls the second antenna module 30 to switch to the receiving mode to avoid frame loss. For another example, to expand the radiation area, when the first main control module controls the first antenna module 30 to switch to the transmission mode, the second main control module obtains the current working state of the first main control module through the communication connection, and controls the second antenna module 30 to switch to the transmission mode to avoid the blind spot of the transaction area.

[0063] In some embodiments, the control module 20 may have only one main control module, and the one main control module is electrically connected to the two antenna modules 30 through two channels respectively to control the two antenna modules 30 to switch to the transmission mode or the reception mode.

[0064] In some embodiments, in combination Figure 1 The control module 20 is installed on the mounting base 10, and the control module 20 is located between the antenna module 30 and the mounting base 10. The control module 20 is electrically connected to the antenna module 30 nearby, while avoiding exposure of the control module 20, so that the antenna module 30 and the mounting base 10 jointly protect the control module 20.

[0065] In some embodiments, in combination Figure 1 The full-duplex working mode of the RSU can be that one of the two antenna modules 30 is in the transmitting mode and the other is in the receiving mode, or the two antenna modules 30 can switch the transmitting and receiving modes according to the frequency. For example, when in use, the control module 20 controls the first antenna module 30 and the second antenna module 30 to switch to the transmitting mode in turn according to the frequency, and at the same time, the antenna module 30 in the non-transmitting mode switches to the receiving mode.

[0066] In some embodiments, the control module 20 may optionally control the circuit board, which is beneficial to realize the lightweight design of the control module 20 and the miniaturized design of the roadside unit, and is beneficial for the roadside unit to be installed in various narrow spaces.

[0067] In some embodiments, in combination Figure 1The roadside unit further includes an adapter plate 50, which is mounted on the mounting base 10. One of the antenna modules 30 is fixedly mounted on the mounting base 10, and the other antenna module 30 is mounted on the adapter plate 50 through the angle adjustment device 40. The adapter plate 50 is mainly responsible for fixing the angle adjustment device 40 to prevent the angle adjustment device 40 from interfering with the inside of the mounting base 10.

[0068] In addition, when the mounting base 10 is assembled, the installation requirements of the fixed antenna module 30 are used as a reference, so that the radiation area of ​​the antenna module 30 meets the preset area. The installation angle of another antenna module 30 can be adjusted through the angle adjustment device 40 after the mounting base 10 is assembled.

[0069] Specifically, the adapter plate 50 is fixedly connected to the studs of the mounting base 10 by bolts. Further, one of the antenna modules 30 is fixedly connected to the studs of the mounting base 10 by bolts, that is, the mounting base 10 has multiple studs, some of which are used to connect to the adapter plate 50, and some of which are used to connect to one of the antenna modules 30.

[0070] Specifically, the adapter plate 50 and the bottom of the fixedly installed antenna module 30 are arranged flush, and the other antenna module 30 is arranged higher than the adapter plate 50, so that the angle can be flexibly adjusted without obstruction, and the radiation area is more flexible.

[0071] In this embodiment, the angle adjustment device 40 can adjust the installation angle of the two antenna modules 30, or can only adjust the installation angle of one antenna module 30, which is not specifically limited here. The angle adjustment device 40 can adjust the angle of the antenna module 30 in one direction, such as the pitch angle or the horizontal angle, or can adjust the angle in two directions, such as the pitch angle and the horizontal angle, which is not specifically limited here. The angle adjustment device 40 can be a connecting rod mechanism, a mechanical arm structure, a hinge structure, etc., which is used to achieve the adjustable angle of the antenna module 30 connected thereto, and the specific structure is not limited.

[0072] In some embodiments, in combination Figure 3 and Figure 4 The angle adjustment device 40 includes a first bracket 410, a second bracket 420 and a third bracket 430. The first bracket 410 is used to install the antenna module 30. The first bracket 410 is rotatably connected to the second bracket 420 around the first axis 401. The second bracket 420 is installed on the third bracket 430, and the third bracket 430 is installed on the mounting seat 10. Based on this, the first bracket 410 and the antenna module 30 installed on the first bracket 410 can rotate relative to the mounting seat 10 around the first axis 401, so that the installation angle of the antenna module 30 can be adjusted.

[0073] The direction of the first axis 401 is not specifically limited. The antenna module 30 rotates around the first axis 401 to change its horizontal angle or its elevation angle, which is not limited here. Specifically, the antenna module 30 changes its horizontal angle through the first axis 401, combined with Figure 2 The radiation area of ​​the antenna module 30 is generally elliptical. By adjusting its horizontal angle and superimposing a horizontal area, the signal coverage of the tip of the ellipse can be effectively improved, and the OBU can be detected more effectively.

[0074] In one embodiment, in combination Figure 5 and Figure 6 The second bracket 420 includes a connecting plate 421 and a first ear plate 422 connected to each other. The first ear plate 422 has a first shaft hole 4221 that passes through the first ear plate 422 along the first axis 401. The first ear plate 422 is rotatably connected to the first bracket 410 through the first shaft hole 4221. The first shaft hole 4221 can limit the first bracket 410 to rotate around the first axis 401 without positional deviation, thereby improving the rotation reliability and position stability of the first bracket 410.

[0075] The second bracket 420 is a plate-like structure, which can be formed by bending, punching, welding and other processes, which is conducive to reducing the processing cost and difficulty, and is conducive to reducing the weight of the second bracket 420. Optionally, the connecting plate 421 and the first ear plate 422 are integrally bent and formed, with strong integrity, no connection gap caused by split connection, high assembly consistency, which is conducive to improving the position accuracy of the first shaft hole 4221, and ensuring the reliability and stability of the rotation direction of the first bracket 410.

[0076] Specifically, combined Figure 4 and Figure 6 The connecting plate 421 has a first wire hole 4211 that passes through the connecting plate 421 along the thickness direction of the connecting plate 421. The first wire hole 4211 is used for the RF wire to pass through, so that the RF wire can pass through the second bracket 420 through the first wire hole 4211 and reach the first bracket 410, and then be connected with the antenna module 30 installed on the first bracket 410. The first wire hole 4211 is used to protect the RF wire and prevent the RF wire from being exposed and scattered or interfered by other structures.

[0077] Specifically, combined Figure 4 and Figure 6 The first ear plate 422 has a first arc angle scale 4222 distributed circumferentially around the first axis 401. The first arc angle scale 4222 is used to indicate the rotation angle information of the first bracket 410 relative to the second bracket 420, which is conducive to accurately adjusting the installation angle of the first bracket 410 and the antenna module 30.

[0078] Specifically, combined Figure 4 and Figure 6 The first ear plate 422 has a first arc groove 4223 distributed circumferentially around the first axis 401, and the first bracket 410 has a first indicator 4121, which is slidably disposed in the first arc groove 4223, thereby further limiting the first bracket 410 to stably rotate around the first axis 401. At the same time, the rotation angle of the first bracket 410 is obtained by the first indicator 4121 at different positions of the first arc groove 4223. Furthermore, the first arc groove 4223 and the first arc angle scale 4222 are concentrically disposed, so that the rotation angle information of the first bracket 410 can be accurately obtained.

[0079] Optionally, the first indicating portion 4121 is an indicating nut, an indicating block or an indicating needle, etc.

[0080] Specifically, combined Figure 4 and Figure 6 There are two first ear plates 422 , and the two first ear plates 422 are located on opposite sides of the connecting plate 421 , which increases the rotation support points of the second bracket 420 and the first bracket 410 , so that the first bracket 410 can rotate more stably.

[0081] Specifically, the first ear plate 422 is located on the side of the connecting plate 421 away from the mounting base 10, so that the first bracket 410 is arranged on one side of the second bracket 420, and is stably rotatably connected through the first ear plate 422, which is conducive to the orderly layout of the first bracket 410 and the second bracket 420.

[0082] Optionally, the first ear plate 422 is located on one side of the connecting plate 421 and can enclose an accommodation space together with the connecting plate 421 to facilitate protection of radio frequency lines or other structures.

[0083] In one embodiment, in combination Figure 4 , Figure 6 and Figure 7 The second bracket 420 is rotatably mounted on the third bracket 430 around the second axis 402, and the second axis 402 is different from the first axis 401. The second bracket 420 rotates around the second axis 402, thereby driving the first bracket 410 and the antenna module 30 to rotate around the second axis 402, thereby increasing the installation angle adjustment range of the antenna module 30, expanding the adaptive radiation range of the antenna module 30, and further expanding the application scenario range of the roadside unit.

[0084] Optionally, the second axis 402 is perpendicular to the first axis 401, similar to a rectangular coordinate system, and can accurately and independently adjust the installation angles of the antenna module 30 in two dimensions. For example, the first bracket 410 rotates around the first axis 401 to adjust the pitch angle of the antenna module 30, and the second bracket 420 rotates around the second axis 402 to adjust the horizontal angle of the antenna module 30. It can be understood that in other embodiments, the first axis 401 and the second axis 402 do not have to be arranged vertically, similar to a polar coordinate system, and can adjust the installation angle of the antenna module 30 in any two dimensions.

[0085] Specifically, the second bracket 420 includes a connecting plate 421 and a second ear plate 423 connected to each other, the second ear plate 423 has a second shaft hole 4231 penetrating the second ear plate 423 along the second axis 402, and the second ear plate 423 is rotatably mounted on the third bracket 430 through the second shaft hole 4231. The second shaft hole 4231 can limit the second bracket 420 to rotate around the second axis 402 without positional deviation, thereby improving the rotation reliability and position stability of the second bracket 420.

[0086] Optionally, the connecting plate 421 and the second ear plate 423 are integrally bent and formed, with strong integrity, no connection gap caused by separate connection, high assembly consistency, which is conducive to improving the position accuracy of the second shaft hole 4231 and ensuring the rotation reliability and stability of the second bracket 420. Further, the connecting plate 421, the first ear plate 422 and the second ear plate 423 are integrally bent and formed.

[0087] Specifically, the second ear plate 423 has a second arc angle scale 4232 distributed circumferentially around the second axis 402, and the second arc angle scale 4232 is used to indicate the rotation angle information of the second bracket 420 relative to the third bracket 430, which is conducive to accurately adjusting the installation angle of the second bracket 420 and the antenna module 30.

[0088] Specifically, the second ear plate 423 has a second arc groove 4233 distributed circumferentially around the second axis 402, and the third bracket 430 has a second indicator 4321, which is slidably disposed in the second arc groove 4233, thereby further limiting the stable rotation of the second bracket 420 around the second axis 402. At the same time, the rotation angle of the second bracket 420 is obtained by the second indicator 4321 at different positions of the second arc groove 4233. Further, the second arc groove 4233 and the second arc angle scale 4232 are concentrically disposed, so that the rotation angle information of the second bracket 420 can be accurately obtained.

[0089] Optionally, the second indicating portion 4321 is an indicating nut, an indicating block or an indicating needle, etc.

[0090] Specifically, there are two second ear plates 423 , which are located on opposite sides of the connecting plate 421 , increasing the rotation support points of the second bracket 420 and the third bracket 430 , so that the second bracket 420 can rotate more stably.

[0091] Optionally, the two second ear plates 423 are located on two opposite sides of the connecting plate 421 , and the two first ear plates 422 are located on another two opposite sides of the connecting plate 421 .

[0092] Specifically, the second ear plate 423 is located on one side of the connecting plate 421 close to the mounting base 10, so that the third bracket 430 is arranged on one side of the second bracket 420, and the third bracket 430 and the second bracket 420 are arranged in an orderly manner through the second ear plate 423. Optionally, the second ear plate 423 and the first ear plate 422 are respectively located on opposite sides of the connecting plate 421, so that the first bracket 410, the second bracket 420 and the third bracket 430 are arranged in an orderly manner without interfering with each other.

[0093] Optionally, the second ear plate 423 is located on one side of the connecting plate 421 and can enclose an accommodation space together with the connecting plate 421 to facilitate protection of radio frequency lines or other structures.

[0094] In one embodiment, in combination Figure 4 and Figure 5 The first bracket 410 includes a first mounting plate 411 and a third ear plate 412. The first mounting plate 411 is mounted on the antenna module 30. The third ear plate 412 is connected to the first mounting plate 411 and is located on a side of the first mounting plate 411 away from the antenna module 30. The third ear plate 412 will not interfere with the antenna module 30, nor will it block the signal propagation of the antenna module 30. The third ear plate 412 is used to be rotatably connected to the second bracket 420 along the first axis 401. The first mounting plate 411 and the third ear plate 412 are independently connected to the antenna module 30 and the second bracket 420 respectively, without interfering with each other, with a large connection area and a large connection operation space, which is convenient for connection operation and improves connection stability.

[0095] Optionally, the first mounting plate 411 may be fitted with the antenna module 30 to increase the contact area and improve the connection stability of the antenna module 30 .

[0096] Specifically, the first mounting plate 411 has a through second wire hole 4111, and the second wire hole 4111 is used for the RF wire to pass through, so that the RF wire can pass through the first bracket 410 through the second wire hole 4111, and then be connected to the antenna module 30 installed on the first bracket 410. The second wire hole 4111 is used to protect the RF wire and prevent the RF wire from being exposed and scattered or interfered by other structures.

[0097] Specifically, the first mounting plate 411 has a first mounting hole 4112 , and the first mounting hole 4112 is used to connect with the antenna module 30 , that is, the fastener can pass through the first mounting hole 4112 and the antenna module 30 to achieve the installation of the antenna module 30 on the first mounting plate 411 .

[0098] The first bracket 410 is a plate-like structure, which can be formed by bending, punching, welding and other processes, which is conducive to reducing the processing cost and difficulty, and is conducive to reducing the weight of the first bracket 410. Optionally, the third ear plate 412 and the first mounting plate 411 are bent and formed as one piece, with strong integrity, no connection gap caused by split connection, and high assembly consistency.

[0099] Specifically, the third ear plate 412 has a third axial hole 4122 that passes through the third ear plate 412 along the first axis 401. The third axial hole 4122 can limit the first bracket 410 to rotate around the first axis 401 without positional deviation, thereby improving the rotation reliability and position stability of the first bracket 410.

[0100] Specifically, there are two third ear plates 412 , which are located on opposite sides of the first mounting plate 411 , increasing the rotation support points of the second bracket 420 and the first bracket 410 , so that the first bracket 410 can rotate more stably.

[0101] In one embodiment, in combination Figure 4 and Figure 7 The third bracket 430 includes a second mounting plate 431 and a fourth ear plate 432. The second mounting plate 431 is mounted on the mounting seat 10. The fourth ear plate 432 is connected to the second mounting plate 431 and is located on a side of the second mounting plate 431 away from the mounting seat 10. The fourth ear plate 432 does not interfere with the mounting seat 10. The fourth ear plate 432 is used to connect with the second bracket 420. The second mounting plate 431 and the fourth ear plate 432 are independently connected to the mounting seat 10 and the second bracket 420, respectively, without interfering with each other, with a large connection area and a large connection operation space, which facilitates the connection operation and improves the connection stability.

[0102] Optionally, the second mounting plate 431 may be fitted with the mounting seat 10 to increase the contact area and improve the connection stability of the third bracket 430 .

[0103] Specifically, the second mounting plate 431 has a through third wire hole 4311 for the RF wire to pass through, so that the RF wire can pass through the third bracket 430 through the second wire hole 4111. The third wire hole 4311 is used to protect the RF wire and prevent the RF wire from being exposed and scattered or interfered by other structures.

[0104] Specifically, the second mounting plate 431 has a second mounting hole 4312 , and the second mounting hole 4312 is used to connect with the mounting seat 10 , that is, the fastener can pass through the second mounting hole 4312 and the mounting seat 10 to achieve the installation of the second mounting plate 431 on the mounting seat 10 .

[0105] Among them, the third bracket 430 is a plate-like structure, which can be processed by bending, punching, welding and other processes, which is conducive to reducing the processing cost and difficulty, and is conducive to reducing the weight of the third bracket 430. Optionally, the fourth ear plate 432 and the second mounting plate 431 are integrally bent and formed, with strong integrity, no connection gap caused by split connection, and high assembly consistency.

[0106] Specifically, the fourth ear plate 432 has a fourth axial hole 4322 that passes through the fourth ear plate 432 along the second axis 402. The fourth ear plate 432 is rotatably connected to the second bracket 420 through the fourth axial hole 4322 without positional displacement, thereby improving the rotation reliability and position stability of the second bracket 420.

[0107] Specifically, there are two fourth ear plates 432 , which are located on opposite sides of the second mounting plate 431 , increasing the rotation support points of the second bracket 420 and the third bracket 430 , so that the second bracket 420 can rotate more stably.

[0108] In some embodiments, the roadside unit further includes a first driving member, which is used to drive the first bracket 410 to rotate relative to the second bracket 420 around the first axis 401. Specifically, the first driving member has a first rotating shaft, which extends along the first axis 401, and the first rotating shaft movably passes through the first shaft hole 4221 and is connected to the first bracket 410. Optionally, the first rotating shaft is connected to the third shaft hole 4122 of the third ear plate 412.

[0109] In some embodiments, the roadside unit further includes a second driving member, which is used to drive the second bracket 420 to rotate relative to the third bracket 430 around the second axis 402. Specifically, the second driving member has a second rotating shaft, which extends along the second axis 402, and the second rotating shaft is fixedly connected to the second shaft hole 4231 of the second ear plate 423. Optionally, the second driving member is mounted on the third bracket 430, and the second driving member is movably arranged in the fourth shaft hole 4322 of the fourth ear plate 432.

[0110] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A roadside unit, characterized in that: The roadside unit comprises: Mounting seat; Control module; Two antenna modules, the antenna modules are mounted on the mounting base, the two antenna modules are electrically connected to the control module respectively, and the control module is used to control the antenna modules to switch to one of a transmitting mode and a receiving mode; An angle adjustment device is installed on the mounting seat, and is used to adjust the installation angle of at least one of the antenna modules.

2. The roadside unit according to claim 1, characterized in that: The angle adjustment device includes a first bracket, a second bracket and a third bracket, the first bracket is used to install the antenna module, the first bracket is rotatably connected to the second bracket around a first axis, the second bracket is installed on the third bracket, and the third bracket is installed on the mounting base.

3. The roadside unit according to claim 2, characterized in that: The second bracket includes a connecting plate and a first ear plate connected to each other. The first ear plate has a first axial hole penetrating the first ear plate along the first axis. The first ear plate is rotatably connected to the first bracket through the first axial hole.

4. The roadside unit according to claim 3, characterized in that: The second bracket also has at least one of the following: The first ear plate has first arc-shaped angle scales distributed circumferentially around the first axis; The first ear plate has a first arc-shaped groove distributed circumferentially around the first axis, and the first bracket has a first indicating portion, and the first indicating portion is slidably disposed in the first arc-shaped groove; The number of the first ear plates is two, and the two first ear plates are located on opposite sides of the connecting plate; The first ear plate is located at a side of the connecting plate away from the mounting seat.

5. The roadside unit according to claim 3, characterized in that: The connecting plate and the first ear plate are integrally bent and formed; And / or, the connecting plate has a first wire hole penetrating the connecting plate along a thickness direction of the connecting plate, and the first wire hole is used for allowing the radio frequency wire to pass through.

6. The roadside unit according to claim 2, characterized in that: The second bracket is rotatably mounted on the third bracket around a second axis, and the second axis is different from the first axis.

7. The roadside unit according to claim 6, characterized in that: The second bracket includes a connecting plate and a second ear plate connected to each other, the second ear plate has a second axial hole penetrating the second ear plate along the second axis, and the second ear plate is rotatably mounted on the third bracket through the second axial hole.

8. The roadside unit according to claim 7, characterized in that: The second bracket also has at least one of the following: The second ear plate has a second arc-shaped angle scale distributed circumferentially around the second axis; The second ear plate has a second arc groove distributed circumferentially around the second axis, and the third bracket has a second indicating portion, and the second indicating portion is slidably disposed in the second arc groove; The number of the second ear plates is two, and the two second ear plates are located on opposite sides of the connecting plate; The second ear plate is located on a side of the connecting plate close to the mounting seat; The second ear plate and the connecting plate are integrally bent and formed.

9. The roadside unit according to claim 2, characterized in that: The first bracket includes a first mounting plate and a third ear plate, the first mounting plate is mounted on the antenna module, the third ear plate is connected to the first mounting plate and is located on a side of the first mounting plate away from the antenna module, and the third ear plate is used to be rotatably connected to the second bracket along the first axis.

10. The roadside unit according to claim 9, characterized in that: The first bracket also has at least one of the following: The third ear plate has a third axial hole penetrating the third ear plate along the first axis; The number of the third ear plates is two, and the two third ear plates are located on opposite sides of the first mounting plate; The third ear plate and the first mounting plate are integrally bent and formed; The first mounting plate has a through second wire hole, and the second wire hole is used for the radio frequency wire to pass through.

11. The roadside unit according to any one of claims 2 to 10, characterized in that: The third bracket includes a second mounting plate and a fourth ear plate, the second mounting plate is mounted on the mounting seat, the fourth ear plate is connected to the second mounting plate and is located on a side of the second mounting plate away from the mounting seat, and the fourth ear plate is used to connect to the second bracket.

12. The roadside unit according to claim 11, characterized in that: The third bracket also has at least one of the following: The fourth ear plate has a fourth axial hole penetrating the fourth ear plate along the second axis, and the fourth ear plate is rotatably connected to the second bracket through the fourth axial hole; The number of the fourth ear plates is two, and the two fourth ear plates are located on opposite sides of the second mounting plate; The fourth ear plate and the second mounting plate are integrally bent and formed; The second mounting plate has a through third wire hole, and the third wire hole is used for allowing the radio frequency wire to pass through.

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