Positioning base station

Abstract

The utility model discloses a positioning base station, which comprises a positioning unit, a supporting assembly and a mounting assembly, and is characterized in that the positioning unit is used for acquiring position information of a target object; the positioning unit is detachably installed on the supporting assembly and rotationally installed on the supporting assembly. The mounting assembly comprises a mounting seat and a wall surface used for fixing the mounting seat on a building, and the supporting assembly is mounted on the mounting seat; wherein the supporting assembly is selected from at least one of a first supporting rod with a first extension length and a second supporting rod with a second extension length, the second supporting rod is detachably connected with the first supporting rod, and the first extension length is different from the second extension length; the mounting length and position of the positioning unit are adjusted by combining the first supporting rod and the second supporting rod, so that the positioning unit is prevented from being blocked by a shelter of a building.

Description

Technical Field

[0001] This application relates to the field of base station construction, and more particularly to a positioning base station. Background Technology

[0002] During the installation of positioning base stations, the height of the positioning base stations needs to be adjusted according to the installation environment so that the positioning base stations can obtain better signals. However, the existing positioning base stations have poor installation adaptability. Not only can the positioning base stations not be stably erected, but they also cannot extend when the positioning base stations are installed on the roof or the side of the house, resulting in poor RTK signal reception. Utility Model Content

[0003] This application provides a positioning base station that can select support components of appropriate length for different application scenarios to solve the problems mentioned in the background art.

[0004] This application provides a positioning base station, including:

[0005] The positioning unit is used to acquire the location information of the target object;

[0006] The positioning unit is detachably mounted on the support assembly and rotatably mounted on the support assembly.

[0007] The mounting assembly includes a mounting base and a first fastener for securing the mounting base to a wall of a building, and the support assembly is mounted on the mounting base.

[0008] The support component is selected from at least one of a first support rod having a first extension length and a second support rod having a second extension length. The second support rod is detachably connected to the first support rod. The first extension length and the second extension length are different. The installation length and position of the positioning unit are adjusted by combining the first support rod and the second support rod to avoid being blocked by building obstructions.

[0009] In a positioning base station according to one embodiment of this application, the support assembly further includes a first steering component, and the positioning unit is rotatably connected to the first support rod through the first steering component; or the positioning unit is rotatably connected to the second support rod through the first steering component.

[0010] In a positioning base station according to one embodiment of this application, the first steering component includes a connector and a rotating component rotatably connected to the connector, the positioning unit is connected to the rotating component, and the connector is connected to the second support rod or the first support rod.

[0011] In a positioning base station according to one embodiment of this application, the first steering component further includes an adjusting component, which is disposed between the rotating component and the connecting component and is used to adjust the rotation angle of the rotating component relative to the connecting component.

[0012] In a positioning base station according to one embodiment of this application, the support assembly includes a first support rod and a second support rod. The positioning unit is rotatably connected to the first support rod via the first steering member, and the first support rod is connected to the first mounting part via the first support rod.

[0013] In a positioning base station according to one embodiment of this application, the support assembly further includes a second steering component, which is disposed between the first support rod and the first support rod.

[0014] In a positioning base station according to one embodiment of this application, the structure of the second steering component is the same as that of the first steering component.

[0015] In a positioning base station according to one embodiment of this application, the support assembly further includes a connector, the first support rod and the second support rod are tubular structures, and the first support rod is detachably connected to the second support rod through the connector; or, the first support rod or the second support rod is detachably connected to the first mounting part through the connector.

[0016] In a positioning base station according to one embodiment of this application, the first fixing member includes an expansion screw for fixing the mounting base to a roof or wall; and / or, the mounting assembly further includes a second fixing member for fixing the mounting base to the ground.

[0017] In a positioning base station according to one embodiment of this application, when the mounting base is fixed on the building, the distance between the positioning unit and the eaves of the building is greater than 20cm.

[0018] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a positioning base station, including a positioning unit and a support component. The support component is selected from at least one of a first support rod having a first extension length and a second support rod having a second extension length. The second support rod is detachably connected to the first support rod, and the first extension length and the second extension length are different, so that the installation length and position of the positioning unit can be adjusted by combining the second support rod and the first support rod, so as to avoid the positioning unit being unable to obtain the location information of the target object due to the obstruction of the building. This can match different application scenarios and improve the positioning performance and accuracy of the positioning unit. For example, when the positioning base station is installed on the wall of a building, the first support rod, the second support rod, or a combination of both can be used to form a support component of different lengths, so that the positioning unit can extend out of the eaves of the building to obtain a better signal.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the first structure of the positioning base station provided in this application;

[0022] Figure 2 yes Figure 1 A breakdown diagram of the positioning base station in the image;

[0023] Figure 3 This is a schematic diagram of the second structure of the positioning base station provided in this application;

[0024] Figure 4 yes Figure 3 A breakdown diagram of the positioning base station in the image;

[0025] Figure 5 This is a schematic diagram of the third structure of the positioning base station provided in this application;

[0026] Figure 6 yes Figure 5 A breakdown diagram of the positioning base station in the image;

[0027] Figure 7 This is a schematic diagram of the fourth structure of the positioning base station provided in this application;

[0028] Figure 8 yes Figure 7 A breakdown diagram of the positioning base station in the image;

[0029] Figure 9 yes Figure 1 A schematic diagram of the structure of the first steering component in the process;

[0030] Figure 10 yes Figure 1 A schematic diagram of a positioning base station installed on the side wall of a building;

[0031] Figure 11 yes Figure 1 Another schematic diagram of a positioning base station installed on the side wall of a house.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Location base station;

[0034] 10. Support assembly; 11. First support rod; 12. Second support rod; 13. First steering component; 131. Connecting component; 132. Rotating component; 1321. External thread; 133. Adjusting component; 14. Second steering component; 15. Connecting head;

[0035] 20. RTK positioning unit; 21. Internal thread;

[0036] 30. Mounting component; 31. Mounting base; 32. Connector; 321. First fastener; 322. Second fastener;

[0037] 200. House; 201. Side wall; 202. Eaves. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] It should also be understood that the terminology used in this application specification is merely for describing specific realities within the scope of this application. It is important to understand that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] like Figures 1 to 6 As shown, according to a first aspect of this application, this application provides a positioning base station 100, which includes a positioning unit, a support component 10, and an installation component 30. The positioning unit includes an RTK positioning unit 20 for acquiring the location information of a target object. The support component 10 is connected between the RTK positioning unit 20 and the installation component 30, and the installation component 30 is used to fix the support component 10 in the installation position so that the RTK base station 100 can select a support component 10 of appropriate length according to the obstruction of the obstruction, so that the RTK positioning unit 20 can be moved away from the obstruction, avoiding the RTK positioning unit 20 from being blocked by the obstruction and thus losing signal, thereby adapting to the installation position of different obstructions. In addition to the RTK positioning unit 20, the positioning unit can also be other positioning units, such as UWB beacons; the obstruction includes, but is not limited to, the eaves of an obstruction.

[0042] Specifically, the RTK positioning unit 20 is detachably mounted on the support assembly 10 and rotatably mounted on the support assembly 10. The support assembly 10 is mounted on the mounting assembly 30, which is fixed in the mounting position. The mounting position can be a wall of a building, the ground, etc., and this application does not limit it.

[0043] In one alternative implementation, such as Figures 1 to 8As shown, the support component 10 is selected from at least one of the first support rod 11 and the second support rod 12. The second support rod 11 is detachably connected to the first support rod 12, and the first extension length and the second extension length are different, so that the installation length and position of the RTK positioning unit 20 can be adjusted by the combination of the first support rod 11 and the second support rod 12, so as to avoid the RTK positioning unit 20 being blocked by the building's obstruction, thereby affecting the positioning accuracy of the RTK base station 100.

[0044] It should be noted that the number of first support rods 11 can be one or more, so that the RTK positioning unit 20 can be installed on the mounting assembly 30 by a combination of one or more first support rods 11, thereby enabling adjustment of the installation length and position of the RTK positioning unit 20; or, the number of second support rods 12 can also be one or more, so that the RTK positioning unit 20 can be installed on the mounting assembly 30 by a combination of one or more second support rods 12, thereby enabling adjustment of the installation length and position of the RTK positioning unit 20; or, the number of both first support rods 11 and second support rods 12 can be one or more, so that the RTK positioning unit 20 can be installed on the mounting assembly 30 by a combination of one second support rod 12 and another second support rod 12, or by a combination of multiple second support rods 12 and another second support rod 12, thereby enabling adjustment of the installation length and position of the RTK positioning unit 20. This application does not impose any limitations.

[0045] For example, the RTK positioning unit 20 can be detached from one of the first support rod 11 and the second support rod 12 as a whole component and rotatably installed on the other of the first support rod 11 and the second support rod 12 as a whole component. The second support rod 12 is detachably connected to the first support rod 11 to meet the installation requirements of the RTK base station 100 in different application scenarios, and to avoid the RTK positioning unit 20 being blocked by building obstructions, thereby affecting the positioning accuracy of the RTK base station 100. At the same time, the RTK positioning unit 20 can also select the first support rod 11, the second support rod 12, or a combination of both of the corresponding length according to the actual application scenario, so as to improve the installation stability of the RTK positioning unit 20. Compared with the telescopic structure, it is simpler and more stable in structure, preventing the support component 10 from shaking due to external factors during the support process, and providing a guarantee for stable data transmission, thus ensuring the accurate positioning of the RTK positioning unit 20.

[0046] After adopting the above technical solution, since the first support rod 11 has a first extension length, the second support rod 12 has a second extension length, and the first support rod 11 and the second support rod 12 have a third extension length when combined, the RTK positioning unit 20 can select support components 10 with different extension lengths according to the obstruction of the obstruction, so as to meet the installation requirements of the RTK base station 100 in different application scenarios.

[0047] In an optional embodiment, the mounting assembly 30 includes a mounting base 31 and a fastener 32. The support assembly 10 is mounted on the mounting base 31, and the mounting base 31 is mounted in the installation position via the fastener 32. The fastener 32 includes a first fastener 321 and a second fastener 322. The first fastener 321 is used to fix the mounting base 31 to the wall of the building, and the second fastener 322 is used to fix the mounting base 31 to the ground.

[0048] For example, such as Figure 1 , Figure 7 and Figure 10 As shown, when the RTK base station 100 is installed on the side wall 201 of the house 200, the distance between the RTK positioning unit 20 and the eaves 202 of the house 200 is at least greater than a non-zero length value. This avoids the influence of the eaves 202 on the signal strength of the RTK positioning unit 20, ensuring that the RTK positioning unit 20 can obtain a better and faster signal. However, when the eaves 202 of the house 200 extend outwards from the side wall 201 by a first preset distance, and this first preset distance is not less than a first extension length or a second extension length, meaning the RTK positioning unit 20 is directly connected to the mounting assembly 30 via either the first support rod 11 or the second support rod 12, the RTK positioning unit 20 is located inside the eaves 202 and is easily affected by the obstruction of the eaves 202, making it unable to receive a better or faster signal and unable to obtain the location information of the house 200. Therefore, this application can install the RTK positioning unit 20 after the first support rod 11, then connect the first support rod 11 to the second support rod 12, and then fix the second support rod 12 to the side wall 201 of the house 200 through the mounting assembly 30. This solves the problem that the RTK positioning unit 20 installed on the first support rod 11 or the second support rod 12 is blocked by the eaves 202. It does not require overall modification of the first support rod 11 or the second support rod 12, and the two can be directly combined together.

[0049] In one optional embodiment, the first extension length is less than the second extension length. When the first preset distance is less than the first extension length, the RTK positioning unit 20 can be directly connected to the mounting component 30 via the first support rod 11, the first extension length, or a combination of both, thus avoiding the RTK positioning unit 20 being obstructed by the eaves 202. Alternatively, when the first preset distance is between the first extension length and the second extension length, the RTK positioning unit 20 can be directly connected to the mounting component 30 via the second support rod 12, or a combination of the first support rod 11 and the second support rod 12, thus avoiding the RTK positioning unit 20 being obstructed by the eaves 202 (e.g., Figure 11 (As shown).

[0050] It should be noted that when the RTK positioning unit 20 is connected to the mounting base 31 after being combined with the first support rod 11 and the second support rod 12, the RTK positioning unit 20 can be directly connected to the first support rod 11, and then the first support rod 11 can be connected to the second support rod 12; or, the RTK positioning unit 20 can be directly connected to the second support rod 12, and then the second support rod 12 can be connected to the first support rod 11. This application does not impose any restrictions.

[0051] In an optional embodiment, the mounting base 31 is provided with a first mounting part, and one of the second support rod 12 and the first support rod 11 can be removed from the first mounting part as an integral component, while the other of the second support rod 12 and the first support rod 11 can be installed on the first mounting part as an integral component. This eliminates the need for overall modification of the first support rod 11 and the second support rod 12, effectively realizing the interchangeability between the first support rod 11 and the second support rod 12 and reducing the cost of changing the configuration of the support assembly 10.

[0052] In an optional implementation, the RTK positioning unit 20 is connected to the first support rod 11 or the second support rod 12 by a threaded connection. This not only enables quick replacement of the first support rod 11 or the second support rod 12, but also significantly improves the reliable connection between the RTK positioning unit 20 and the first support rod 11 or the second support rod 12. It also reduces the shaking at the connection point between the RTK positioning unit 20 and the first support rod 11 or the second support rod 12, thereby improving the stability of the RTK base station 100.

[0053] In an optional embodiment, the first mounting part is connected to the first support rod 11 or the second support rod 12 by a threaded connection. This not only facilitates the installation and disassembly of the first support rod 11 or the second support rod 12 with the mounting base 31, reducing the difficulty of installation and improving work efficiency, but also enhances the reliability of the first support rod 11 or the second support rod 12 after it is connected to the first mounting part, thereby improving the stability of the RTK base station 100 after it is fixed.

[0054] In an optional embodiment, the first support rod 11 and the second support rod 12 are connected by threads, which enables the length of the support assembly 10 to be adjustable to meet the installation requirements of the RTK base station 100 in different application scenarios, and also facilitates the storage and transportation of the support assembly 10. The threaded connection between the first support rod 11 and the second support rod 12 allows for easy assembly and disassembly of either the first or second support rod 12 as needed; furthermore, it allows the first and second support rods 11 and 12 to be set to the same outer diameter, ensuring coaxiality relative to the first mounting portion after connection, thereby improving the installation accuracy of the RTK base station 100. Furthermore, since the first support rod 11 and the second support rod 12 have the same outer diameter, there is no need to consider the splicing order of the first support rod 11 and the second support rod 12. This also ensures the coaxiality of the first support rod 11 or the second support rod 12 relative to the first mounting part when used alone, thereby ensuring the installation accuracy when the first support rod 11 or the second support rod 12 is used alone or when the first support rod 11 and the second support rod 12 are used in combination. This improves the positioning accuracy when using the RTK positioning unit 20 to obtain position information.

[0055] In one alternative implementation, such as Figure 2 , Figure 4 , Figure 6 and Figure 9 As shown, the support assembly 10 also includes a first steering member 13. The RTK positioning unit 20 is rotatably connected to the first support rod 11 via the first steering member 13, which increases the adjustment range of the support assembly 10, allowing the RTK positioning unit 20 to be positioned appropriately and avoiding the influence of obstructions on the signal strength of the RTK positioning unit 20, thus ensuring that the RTK positioning unit 20 can obtain a better and faster signal. Alternatively, the RTK positioning unit 20 can be rotatably connected to the second support rod 12 via the first steering member 13, which also increases the adjustment range of the support assembly 10, allowing the RTK positioning unit 20 to be positioned appropriately and ensuring that the RTK positioning unit 20 can obtain a better and faster signal.

[0056] In an optional embodiment, the first steering component 13 includes a connecting component 131 and a rotating component 132, with the rotating component 132 rotatably connected to the connecting component 131. The RTK positioning unit 20 is connected to the rotating component 132, and the connecting component 131 is connected to either the second support rod 12 or the first support rod 11. This allows for adjustment of the angle of the RTK positioning unit 20 by rotating the rotating component 132 and the connecting component 131, ensuring the RTK positioning unit 20 is in a suitable position and can obtain signals more effectively and quickly.

[0057] In an optional embodiment, the rotating component 132 is provided with an external thread 1321, and the RTK positioning unit 20 is provided with an internal thread 21. The external thread 1321 and the internal thread 21 are connected to achieve a detachable connection between the RTK positioning unit 20 and the rotating component 132.

[0058] In an optional embodiment, the first steering member 13 further includes an adjusting member 133, which is disposed between the rotating member 132 and the connecting member 131. The adjusting member 133 is used to adjust the rotation angle of the rotating member 132 relative to the connecting member 131, so as to lock the rotating member 132 and the connecting member 131 at different angles, so that the RTK positioning unit 20 can be maintained at a suitable angle, thereby ensuring that the RTK positioning unit 20 can obtain a better and faster signal.

[0059] In one alternative implementation, such as Figures 5 to 8 As shown, the support assembly 10 includes a first support rod 11 and a second support rod 12. The RTK positioning unit 20 is rotatably connected to the first support rod 11 through a first steering member 13. The first support rod 11 is connected to the first mounting part through the first support rod 11. The mounting base 31 is fixed in the mounting position through a connector 131, so that the RTK positioning unit 20 can avoid the influence of obstructions on the signal strength of the RTK positioning unit 20.

[0060] In an optional embodiment, the support assembly 10 further includes a second steering member 14 disposed between the first support rod 11 and the second support rod 12, so that the first support rod 11 can rotate relative to the second support rod 12 via the second steering member 14, thereby enabling the RTK positioning unit 20 to receive signals from a higher position.

[0061] In an optional embodiment, the structure of the second steering component 14 is the same as that of the first steering component 13, so as to facilitate the disassembly and replacement of the second steering component 14 and the first steering component 13, and at the same time reduce the manufacturing cost of the support assembly 10, so that the second steering component 14 and the first steering component 13 do not need to be manufactured separately.

[0062] In an optional embodiment, the support assembly 10 further includes a connector 15. The first support rod 11 and the second support rod 12 are tubular structures, and the first support rod 11 is detachably connected to the second support rod 12 via the connector 15; alternatively, the first support rod 11 or the second support rod 12 is detachably connected to the first mounting portion via the connector 15. One end of the connector 15 is threaded to the first support rod 11, the second support rod 12, or the first mounting portion. Compared to detachable methods such as snap-fit ​​or hinged connections, threaded connections are more convenient. The other end of the connector 15 can be directly fixed to the tubular structure, simplifying the structure and making installation easier.

[0063] In an alternative embodiment, the first fastener 321 includes an expansion screw for securing the mounting base 31 to a roof or wall; the second fastener 322 includes a ground nail for securing the mounting base 31 to the ground.

[0064] In one alternative implementation, such as Figure 1 , Figure 10 and Figure 11 As shown, when the mounting base 31 is fixed on the building, the distance between the RTK positioning unit 20 and the eaves 202 of the building is greater than 20cm, so as to ensure that the RTK positioning unit 20 can obtain a better and faster signal.

[0065] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0066] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0067] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A positioning base station, characterized in that, include: The positioning unit is used to acquire the location information of the target object; The positioning unit is detachably mounted on the support assembly and rotatably mounted on the support assembly. The mounting assembly includes a mounting base and a first fastener for securing the mounting base to a wall of a building, and the support assembly is mounted on the mounting base. The support component is selected from at least one of a first support rod having a first extension length and a second support rod having a second extension length. The second support rod is detachably connected to the first support rod. The first extension length and the second extension length are different. The installation length and position of the positioning unit are adjusted by combining the first support rod and the second support rod to avoid being blocked by building obstructions.

2. The positioning base station according to claim 1, characterized in that, The support assembly further includes a first steering component, and the positioning unit is rotatably connected to the first support rod via the first steering component; or the positioning unit is rotatably connected to the second support rod via the first steering component.

3. The positioning base station according to claim 2, characterized in that, The first steering component includes a connector and a rotating component rotatably connected to the connector. The positioning unit is connected to the rotating component, and the connector is connected to the second support rod or the first support rod.

4. The positioning base station according to claim 3, characterized in that, The first steering component further includes an adjusting component, which is disposed between the rotating component and the connecting component and is used to adjust the rotation angle of the rotating component relative to the connecting component.

5. The positioning base station according to claim 2, characterized in that, The support assembly includes a first support rod and a second support rod. The positioning unit is rotatably connected to the first support rod via the first steering component. The first support rod is connected to the first mounting part via the first support rod.

6. The positioning base station according to claim 5, characterized in that, The support assembly further includes a second steering component, which is disposed between the first support rod and the first support rod.

7. The positioning base station according to claim 6, characterized in that, The structure of the second steering component is the same as that of the first steering component.

8. The positioning base station according to claim 1, characterized in that, The support assembly further includes a connector, the first support rod and the second support rod are tubular structures, and the first support rod is detachably connected to the second support rod through the connector; or, the first support rod or the second support rod is detachably connected to the first mounting part through the connector.

9. The positioning base station according to claim 1, characterized in that, The first fastener includes an expansion screw for securing the mounting base to a roof or wall; and / or, the mounting assembly further includes a second fastener for securing the mounting base to the ground.

10. The positioning base station according to claim 1, characterized in that, When the mounting base is fixed to the building, the distance between the positioning unit and the eaves of the building is greater than 20cm.

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