Base station and positioning system

Abstract

The utility model provides a base station, comprising an installation platform which is provided with a first installation position and a second installation position which are respectively arranged on two opposite sides of the installation platform; the navigation positioning antenna is mounted at the first mounting position; and the local area wireless communication antenna is mounted at the second mounting position, and the local area wireless communication antenna and the navigation positioning antenna are arranged at an interval in the horizontal direction. The utility model further provides a positioning system which comprises the base station and the positioning system. The base station provided by the utility model provides an installation thought of the local area wireless communication antenna, and is beneficial to stable transmission of positioning information of a positioning system.

Description

Technical Field

[0001] The utility model relates to the field of outdoor positioning, in particular to a reference station and a positioning system. Background Art

[0002] In the related art, the positioning of outdoor working equipment is generally achieved by setting up a base station and transmitting the positioning information of the base station through wireless communication technology (such as 4G communication technology). However, when the 4G signal is unstable, the positioning information transmission of the base station may be inaccurate or delayed. Utility Model Content

[0003] The utility model provides a base station and a positioning system in the prior art, which can be equipped with a local wireless communication antenna to transmit positioning information through local wireless communication when the 4G network signal of the positioning system is weak, so as to ensure the transmission stability and timeliness of the positioning information transmission between the base station and the outdoor working equipment.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions.

[0005] The utility model proposes a reference station, comprising:

[0006] A mounting platform having a first mounting position and a second mounting position respectively located on opposite sides of the mounting platform;

[0007] A navigation and positioning antenna is installed at the first installation position; and

[0008] The local area wireless communication antenna is installed at the second installation position and is spaced apart from the navigation positioning antenna in the horizontal direction.

[0009] In order to avoid affecting the transmission of positioning information when the network signal is poor, other wireless communications need to be introduced as a second communication method. Based on the above problem, this application designs a second installation position on the installation platform of the base station, and provides an installation idea for the local wireless communication antenna; setting a horizontal interval between the first installation position and the second installation position can reduce the signal interference between the navigation positioning antenna and the local wireless communication antenna.

[0010] In some embodiments, in the horizontal direction of the mounting platform, a distance between the first mounting position and the second mounting position is d, and d satisfies the following relationship: 30 mm ≤ d ≤ 50 mm.

[0011] In some embodiments, the mounting platform is provided with a through hole, and the base station further includes a first signal line, the first signal line passes through the through hole, and at least a portion of its signal connection portion protrudes from an upper surface of the mounting platform to form the first mounting position.

[0012] In some embodiments, the first signal line also includes a line body and a mounting portion located at one end of the line body, and the signal connection portion is located on a side of the mounting portion away from the line body; the base station also includes a fixing member, the fixing member is formed with a receiving groove, the mounting portion is located in the receiving groove, and the fixing member is arranged on a side of the mounting platform away from the local wireless communication antenna.

[0013] In some embodiments, in the depth direction of the receiving groove, the outer contour of the mounting portion is non-circular, and the inner contour of the groove wall of the receiving groove is non-circular matching the outer contour of the mounting portion to limit the rotation of the mounting portion relative to the groove wall of the receiving groove.

[0014] In some embodiments, a notch is formed at the bottom of the receiving groove, and a portion of the wire body adjacent to the mounting portion is located in the notch.

[0015] In some embodiments, the fixing member is further formed with a wire passing channel, and in a horizontal direction, the wire passing channel extends from the outer side of the fixing member to the accommodating groove and is communicated with the accommodating groove.

[0016] In some embodiments, the local wireless communication antenna is a LORA antenna, and / or the navigation positioning antenna is an RTK antenna.

[0017] In some embodiments, the reference station further comprises a pole for mounting on an outdoor mounting surface, and the mounting platform is mounted on the pole.

[0018] In some embodiments, the mounting platform is mounted on the vertical pole via a hinge, and the mounting platform can rotate relative to the vertical pole within a range of -90° to +90°.

[0019] The utility model also proposes a positioning system, including the above-mentioned base station; and also includes a self-moving device, the self-moving device is provided with a local wireless communication module, and the local wireless communication module is respectively communicated with the local wireless communication antenna of the base station and the navigation positioning antenna arranged on the self-moving device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the implementation modes of the present invention, the drawings required for use in the description of the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1A schematic diagram of a reference station provided by an embodiment of the utility model is shown;

[0022] Figure 2 A schematic diagram of a first installation position and a second installation position of a reference station provided by an embodiment of the utility model is shown;

[0023] Figure 3 A schematic diagram showing the structure of a first signal line provided by an embodiment of the utility model is shown;

[0024] Figure 4 A schematic diagram of the structure of a fixing member provided in an embodiment of the utility model is shown;

[0025] Figure 5 A schematic diagram showing one of the maximum rotation ranges of the mounting platform provided by an embodiment of the utility model relative to the vertical pole;

[0026] Figure 6 A schematic diagram showing the maximum rotation range of another mounting platform provided by an embodiment of the utility model relative to the vertical pole is shown.

[0027] Description of Figure Numbers:

[0028] 100. Base station;

[0029] 10. Mounting platform; 11. First mounting position; 12. Second mounting position; 13. Through hole

[0030] 20. Navigation and positioning antenna;

[0031] 30. Local area wireless communication antenna;

[0032] 40. first signal line; 41. line body; 42. mounting portion; 43. signal connection portion;

[0033] 50. fixing member; 51. receiving groove; 52. notch; 53. wire passage;

[0034] 60. Pole;

[0035] 70. Hinge. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings, i.e., embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] Please refer to Figure 1The utility model proposes a base station 100 used in a positioning system. The positioning system may include the base station 100 and a self-moving device. The base station 100 and the self-moving device can transmit positioning information through a wireless communication network.

[0038] Among them, the positioning technology between the base station 100 and the self-mobile device can adopt RTK technology. RTK (Real Time Kinematic) technology means that the base station 100 transmits the RTK signal it receives, such as carrier observation quantity and base station 100 coordinate information, to the self-mobile device through a data link. The self-mobile device receives the carrier phase of the satellite and the carrier phase from the base station 100, and forms a phase differential observation value for processing, which can give centimeter-level positioning results in time to obtain real-time position information of the self-mobile device.

[0039] Among them, the self-moving device can be used for operations in outdoor scenes, such as clearing snow, mowing grass, blowing leaves and spreading salt.

[0040] In the related art, the transmission mode of positioning information in the positioning system is relatively simple, and the transmission of positioning information is generally achieved through 4G wireless communication technology. However, when the 4G signal is unstable, the positioning information transmission of the base station 100 may be inaccurate or delayed.

[0041] Based on this, the present applicant has conducted in-depth research to solve the technical problem of how to ensure the transmission stability and timeliness of positioning information transmission between the base station 100 and the outdoor working equipment when the 4G signal is unstable, so as to form the technical solution of the present application.

[0042] The structure of the technical solution of this application is described in detail below.

[0043] Please refer to Figure 1 The base station 100 provided by the utility model includes an installation platform 10 for installing an antenna, a first installation position 11 and a second installation position 12 respectively located on opposite sides of the installation platform 10, a navigation positioning antenna 20 and a local wireless communication antenna 30. Through the setting of the local wireless communication antenna 30, the problem of unstable transmission of positioning information relying on a single method is solved.

[0044] The mounting platform 10 may be a plate-like structure, and its outer contour may be any one of circular, elliptical, polygonal, etc., which is adapted to the first mounting position 11 and the second mounting position 12 .

[0045] The first mounting position 11 is used to install the navigation and positioning antenna 20, and the second mounting position 12 is used to install the local wireless communication antenna 30. The navigation and positioning antenna 20 is used to receive satellite signals to obtain its own location information. The self-mobile device obtains the location information through networking, such as through the 4G channel, and performs differential correction with its own location information to provide more accurate real-time positioning. As another wireless communication channel, the local wireless communication antenna 30 can transmit the positioning information obtained by the navigation and positioning antenna 20 to the self-mobile in the case of poor network signal.

[0046] The first mounting position 11 and the second mounting position 12 are spaced apart in the horizontal direction, which can improve the isolation between the navigation positioning antenna 20 and the local wireless communication antenna 30 and reduce the signal interference between the navigation positioning antenna 20 and the local wireless communication antenna 30 .

[0047] See also Figure 2 In some embodiments, the distance between the first installation position 11 and the second installation position 12 in the horizontal direction is d, and d satisfies the following relationship: 30mm≤d≤50mm.

[0048] The beneficial effects of this embodiment are: controlling the distance between the first mounting position 11 and the second mounting position 12 to be greater than or equal to 30 mm, ensuring a certain spacing space between the first mounting position 11 and the second mounting position 12 in the horizontal direction, on the one hand, can avoid mutual interference in the signals of the two antennas; on the other hand, it can ensure the normal installation of the navigation positioning antenna 20 and the local wireless communication antenna 30, avoiding structural interference between the two antennas during the installation process.

[0049] At the same time, the distance between the first mounting position 11 and the second mounting position 12 is controlled to be less than or equal to 50 mm to prevent the upper surface area of ​​the mounting platform 10 from being too large. When it snows in winter and causes excessive snow coverage, as the height of the snow on the upper surface of the mounting platform 10 increases, the antenna is likely to be covered, thereby affecting the reception and transmission of positioning information. Therefore, controlling the distance between the two mounting positions is conducive to reducing the load-bearing pressure of the reference station 100 and ensuring a good antenna signal.

[0050] Preferably, in the horizontal direction, the distance between the first installation position 11 and the second installation position 12 is 40 mm.

[0051] See also Figure 1 In some embodiments, the mounting platform 10 is provided with a through hole 13, and the reference station 100 further includes a first signal line 40, the first signal line 40 passes through the through hole 13, and at least a portion of the signal connection portion 43 thereof protrudes from the upper surface of the mounting platform 10 to form a first mounting position 11. In other words, the signal connection portion 43 of the first signal line 40 passes through the upper surface of the mounting platform 10 through the through hole 13 to be connected to the local area wireless communication antenna 30.

[0052] Specifically, the first signal line 40 can be an SMA radio frequency line, and the signal connection part 43 is a cylindrical interface, the cylindrical interface part protrudes from the upper surface of the mounting platform 10, that is, the first mounting position 11, and the outer surface of the cylindrical interface has an external thread; the local area wireless communication antenna 30 has a connection part that is compatible with the first signal line 40, and the connection part has an internal thread; the first mounting position 11 provides a stable connection method, so that the SMA radio frequency line and the local area wireless communication antenna 30 are detachably connected through internal and external threads.

[0053] See also Figure 3 and Figure 4 In some embodiments, the first signal line 40 includes a line body 41 and a mounting portion 42 located at one end of the line body 41, and the signal connection portion 43 is located on the side of the mounting portion 42 facing away from the line body 41; and the base station 100 also includes a fixing member 50, the fixing member 50 is formed with a receiving groove 51, the mounting portion 42 is located in the receiving groove 51, and the fixing member 50 is arranged on the side of the installation platform 10 facing away from the local wireless communication antenna 30.

[0054] Exemplarily, one end of the first signal line 40 is an SMA RF line female connector, and the SMA RF line female connector includes a signal connection portion 43 and a mounting portion 42, wherein one end of the mounting portion 42 is connected to the line body 41, and the other end is connected to the signal connection portion 43, and the mounting portion 42 can be specifically expressed as a hexagonal plate-like structure, and the mounting portion 42 is confined in the receiving groove 51 of the fixing member 50. There are many ways to connect the fixing member 50 to the mounting platform 10. For example, in this embodiment, the fixing member 50 is provided with a through hole 13, and the mounting platform 10 is provided with a corresponding threaded hole, and the fixing member 50 is fixed to the side of the mounting platform 10 facing away from the local wireless communication antenna 30 through a threaded connection.

[0055] In this way, the design of the fixing member 50 makes the first signal line 40 easy to install and securely fixed.

[0056] See also Figure 4 In some embodiments, in the depth direction of the accommodating groove 51, the outer contour of the mounting portion 42 is non-circular, and the inner contour of the groove wall of the accommodating groove 51 is non-circular matching the outer contour of the mounting portion 42 to limit the rotation of the mounting portion 42 relative to the groove wall of the accommodating groove 51.

[0057] Exemplarily, the outer contour of the mounting portion 42 may be a quadrilateral, a pentagon, a hexagon, etc., and the inner contour of the groove wall of the receiving groove 51 is in a shape that matches the outer contour of the mounting portion 42. During the installation process, the fixing member 50 and the mounting platform 10 clamp the mounting portion 42 in a clamping state, and due to the non-circular adaptation, when the signal connection portion 43 is threadedly connected to the local area wireless communication antenna 30, the mounting portion 42 is prevented from rotating with the rotation of the local area wireless communication antenna 30. In this way, the connection between the first signal line 40 and the local area wireless communication antenna 30 is more reliable.

[0058] See also Figure 4 In some embodiments, a notch 52 is formed at the bottom of the accommodating groove 51 , and a portion of the wire body 41 adjacent to the mounting portion 42 is located in the notch 52 .

[0059] It should be noted that the mounting portion 42 of the first signal line 40 is connected to the line body 41, and the setting of the notch 52 allows the first signal line 40 to pass through the fixing member 50. In this embodiment, the notch 52 is circular in shape, and the area of ​​the notch 52 is smaller than the area of ​​the accommodating groove 51. The notch 52 forms an upper surface in the depth direction, and the upper surface supports the mounting portion 42. The beneficial effect of this embodiment is that the circular setting of the notch 52 is conducive to accommodating the line body 41, and the lower surface of the mounting portion 42 is supported by the above-mentioned upper surface, thereby ensuring a stable and reliable fixing effect.

[0060] Please continue reading Figure 4 In some embodiments, the fixing member 50 is further formed with a wire passing channel 53 . In the horizontal direction, the wire passing channel 53 extends from the outer side of the fixing member 50 to the receiving groove 51 and is connected to the receiving groove 51 .

[0061] In this way, when the operation of fixing the first signal line 40 is performed, the first signal line 40 passes from the outside of the fixing part 50 along the line passage 53 into the inside of the fixing part 50, and the operator pulls the first signal line 40 along the mounting portion 42 in the direction close to the fixing part 50 until the outer contour of the mounting portion 42 matches the inner contour of the groove wall of the accommodating groove 51 of the fixing part 50. This operation method is not only simple and convenient to install, but also convenient for disassembly, replacement and maintenance.

[0062] In some embodiments, the local wireless communication antenna 30 is a LoRa antenna, and / or the navigation and positioning antenna 20 is an RTK antenna.

[0063] It should be noted that LoRa is an ultra-long-distance wireless transmission solution based on spread spectrum technology. It uses LoRa antennas, has a long transmission distance, low power consumption, many networking nodes, and low cost; RTK technology has high positioning accuracy and no error accumulation. In this way, on the one hand, the application of RTK technology greatly improves the accuracy of the positioning system; on the other hand, LoRa communication provides a backup communication method for the positioning system, making up for the limitations of 4G / WIFI communication methods. It is applied to self-moving devices, which is conducive to improving the operating efficiency of self-moving devices in the preset area.

[0064] See also Figure 1 In some embodiments, the reference station 100 further includes a pole 60 for installation on an outdoor installation surface, and the installation platform 10 is installed on the pole 60. The outdoor installation surface may be a lawn, a concrete floor, a house wall, an eave, etc. The navigation positioning antenna 20 and the local area wireless communication antenna 30 may be installed on the pole 60 through the installation platform 10. The pole 60 is designed to have a certain height from the outdoor installation surface. The increase in the height enables the antenna to be located at a high position, which is conducive to signal reception.

[0065] Furthermore, in order to facilitate the operator to install the navigation positioning antenna 20 and the local wireless communication antenna 30 to a suitable angle, in some embodiments, the mounting platform 10 is mounted on the pole 60 through a hinge 70, and the mounting platform 10 can rotate relative to the pole 60 within a range of -90° to +90°. Figure 1 In the initial state, the navigation positioning antenna 20 and the local wireless communication antenna 30 connected to the mounting platform 10 are in the same vertical direction as the pole 60; when the mounting platform 10 rotates by -90°, the state of the mounting platform 10 and the antenna relative to the pole 60 is shown in FIG. Figure 5 When the mounting platform 10 is rotated by +90°, the state of the mounting platform 10 and the antenna relative to the pole 60 is shown Figure 6 .

[0066] For example, when the operator selects the eaves as the outdoor installation surface, the eaves form a certain angle with the horizontal plane, resulting in the navigation positioning antenna 20 and the local wireless communication antenna 30 being unable to be in a vertical state after the vertical pole 60 is installed, which will affect the signal reception efficiency or cause a certain positioning deviation. The beneficial effect of this embodiment is that the mounting platform 10 is mounted on the vertical pole 60 through the hinge 70, and the antenna obtains a rotation range of -90° to +90° through the mounting platform 10. The rotation range can compensate for the angle deviation caused by the inclination angle of the eaves, so that the navigation positioning antenna 20 and the local wireless communication antenna 30 remain fixed to the vertical pole 60 in a vertical upward state.

[0067] The utility model also proposes a positioning system, including the above-mentioned base station 100, which is equipped with a local wireless communication antenna; and also includes a self-mobile device, which is equipped with a local wireless communication module, and the local wireless communication module is respectively communicated with the local wireless communication antenna of the base station 100 and the navigation positioning antenna 20 arranged on the self-mobile device.

[0068] The self-moving device may be a snow blower, or a lawn mower, a sweeper, a leaf blower, a transport vehicle, or any other self-moving device. The navigation and positioning antenna 20 in the reference station 100 receives the positioning information, and the reference station 100 can transmit the positioning information to the local wireless communication module of the self-moving device through the local wireless communication antenna 30. The self-moving device combines the positioning information of the reference station 100 and the positioning information output by the navigation and positioning antenna 20 set on itself for analysis to correct its own real-time position.

[0069] In the description of the present utility model, it should be understood that the terms "length", "width", "depth", "up", "down", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 utility model. Terms such as "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, or a transmission connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0070] In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present utility model, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present utility model and the features of different embodiments or examples without contradiction.

[0071] The above implementation modes are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned implementation modes, a person skilled in the art should understand that the technical solutions described in the aforementioned implementation modes can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various implementation modes of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A reference station, characterized in that: include: A mounting platform having a first mounting position and a second mounting position respectively located on opposite sides of the mounting platform; A navigation and positioning antenna is installed at the first installation position; as well as, The local area wireless communication antenna is installed at the second installation position and is spaced apart from the navigation positioning antenna in the horizontal direction.

2. The reference station according to claim 1, characterized in that: In the horizontal direction, the distance between the first installation position and the second installation position is d, and d satisfies the following relationship: 30mm≤d≤50mm.

3. The reference station according to claim 1, characterized in that: The mounting platform is provided with a through hole, and the base station further comprises a first signal line, the first signal line passes through the through hole, and at least part of the signal connection portion thereof protrudes from the upper surface of the mounting platform to form the first mounting position.

4. The reference station according to claim 3, characterized in that: The first signal line includes a line body and a mounting portion located at one end of the line body, and the signal connection portion is located at a side of the mounting portion away from the line body; The base station further includes a fixing member, the fixing member is formed with a receiving groove, the mounting portion is located in the receiving groove, and the fixing member is arranged on a side of the mounting platform facing away from the local area wireless communication antenna.

5. The reference station according to claim 4, characterized in that: In the depth direction of the receiving groove, the outer contour of the mounting portion is non-circular, and the inner contour of the groove wall of the receiving groove is non-circular matching the outer contour of the mounting portion to limit the rotation of the mounting portion relative to the groove wall of the receiving groove.

6. The reference station according to claim 5, characterized in that: A notch is formed at the bottom of the accommodating groove, and a portion of the wire body adjacent to the mounting portion is located in the notch.

7. The reference station according to claim 6, characterized in that: The fixing member is further formed with a wire passing channel, and in a horizontal direction, the wire passing channel extends from the outer side of the fixing member to the accommodating groove and is communicated with the accommodating groove.

8. The reference station according to claim 1, characterized in that: The local area wireless communication antenna is a LORA antenna, and / or the navigation and positioning antenna is an RTK antenna.

9. The reference station according to any one of claims 1 to 8, characterized in that: The reference station further comprises a pole for being mounted on an outdoor mounting surface, and the mounting platform is mounted on the pole.

10. The reference station according to claim 9, characterized in that: The installation platform is installed on the vertical pole through a hinge, and the rotation range of the installation platform relative to the vertical pole is -90° to +90°.

11. A positioning system, characterized in that: include: The reference station according to any one of claims 1 to 10; A self-mobile device, wherein the self-mobile device is provided with a local area wireless communication module; Wherein, a communication connection can be established between the local area wireless communication module and the local area wireless communication antenna of the base station.

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