Docking station and lawn mowing system

By arranging grounding pieces and wires on the control circuit board and bottom plate in the vertical part of the docking station, and using the phase difference method for positioning, the problem of reduced positioning accuracy of the lawn mowing robot in the case of short wires is solved, and higher positioning is achieved. Precision and mowing efficiency.

WO2025015703A1PCT designated stage expired Publication Date: 2025-01-23SHENZHEN LDROBOT CO LTD

Patent Information

Application Number
PCT/CN2023/120860
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-07-20
Filing Date
2023-09-22
Publication Date
2025-01-23

AI Technical Summary

Technical Problem

The positioning accuracy of the mowing robot is affected by the wire parameters and capacitance, resulting in a reduced positioning accuracy in the case of short wires.

Method used

A docking station is designed, which includes a control circuit board in the upright part and a grounding piece and wires on the bottom part. The positioning signal is emitted through the control circuit board and transmitted through the wires. The lawn mowing robot uses the phase difference method for positioning. This design forms a huge capacitance between the earth and the wire, reducing the phase speed, thereby improving positioning accuracy.

Benefits of technology

By reducing the speed of phase, increasing the interval between signal detection, the accuracy of the positioning of grass -cut robots has been improved, and high -efficiency grass -cut operations in different lawn environments are ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

A docking station (10) and a lawn mowing system. The lawn mowing system comprises the docking station (10) and a lawn-mowing robot (20). The docking station (10) comprises an upright part (1) and a bottom plate part (2). The upright part (1) is provided with a control circuit board having a first electrical connection end (11), a second electrical connection end (12), and a third electrical connection end (13); and the upright part (1) is connected to the bottom plate part (2), a grounding member (3) and a first wire (4) are provided on the bottom plate part (2), the grounding member (3) is electrically connected to the first electrical connection end (11), a first end of the first wire (4) is electrically connected to the second electrical connection end (12), and a second end of the first wire (4) is electrically connected to the third electrical connection end (13). A great capacitance is formed between the ground and the first wire (4), so that the phase velocity can be reduced, increasing the signal detection interval time, improving the accuracy of obtaining the interval time, and thus improving the positioning precision of the lawn-mowing robot (20).
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Description

A docking station and mowing system

[0001] This application claims priority to the Chinese patent application with application number 2023219317126 filed with the Patent Office of China on July 20, 2023, and with the invention name “A docking station and mowing system”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the technical field of circuit devices, and in particular relates to a docking station and a mowing system. Background Art

[0003] The statements herein provide only background information related to the present application and do not necessarily constitute prior art. Robotic lawn mowers, as unattended lawn mowing devices, are increasingly popular among households with lawns due to their intelligent nature, which can help users save significant time mowing. Robotic lawn mowers rely on electricity to operate, but the capacity of their built-in batteries is limited, requiring them to frequently return to docking stations for recharging.

[0004] The docking station consists of a base plate and a charging connector. The base plate assists the robot mower in navigating and positioning itself when returning to the docking station and provides a flat surface for charging and docking. The charging connector, located at the top of the base plate, charges the robot mower. The charging connector houses a signal generator, which connects to the ends of a wire embedded at the boundary of the mowing area. The signal generator transmits a positioning signal to both ends of the wire. The robot mower detects this signal, which is transmitted along the wire, and determines its position along the wire.

[0005] However, the robot's positioning accuracy depends on the conductor's phase velocity; the lower the phase velocity, the more accurate the positioning. Because phase velocity is negatively correlated with conductor parameters and the conductor's capacitance, shorter conductors placed at the edge of the mowing area reduce the conductor's capacitance, resulting in a higher phase velocity and a lower positioning accuracy. Technical issues

[0006] One of the objectives of the embodiments of the present application is to provide a docking station and a mowing system that can improve the positioning accuracy of a mowing robot. Technical Solutions

[0007] The technical solution adopted in the embodiment of this application is:

[0008] In a first aspect, a stop is provided, comprising:

[0009] The vertical portion is provided with a control circuit board, the control circuit board is arranged in the vertical portion and has a first electrical connection end, a second electrical connection end and a third electrical connection end;

[0010] A bottom plate portion, the upright portion is connected to the bottom plate portion and extends upward, the bottom plate portion is provided with a grounding member and a first wire, the grounding member is electrically connected to the first electrical connection end, the first end of the first wire is electrically connected to the second electrical connection end, and the second end of the first wire is electrically connected to the third electrical connection end.

[0011] In a second aspect, a mowing system is provided, comprising the above-mentioned docking station and a mowing robot. Beneficial effects

[0012] The beneficial effects of the docking station provided in the embodiment of the present application are: the control circuit board in the upright part is used to send signals and transmit signals through the first wire. When the lawn mower robot travels along the first wire, the control circuit board located in the upright part sends positioning signals to both ends of the first wire. The lawn mower robot uses the phase difference method for positioning. Since the grounding end of the control circuit board is connected to the grounding piece inserted into the ground, a huge capacitor is formed between the earth and the first wire, which can reduce the phase velocity, thereby increasing the signal detection interval time, improving the accuracy of the acquisition interval time, and thus improving the positioning accuracy of the lawn mower robot.

[0013] The beneficial effects of the lawn mowing system provided by the embodiment of the present application are: the control circuit board in the upright part is used to send signals and transmit the signals through the first wire. When the lawn mowing robot travels along the first wire, the control circuit board located in the upright part sends positioning signals to both ends of the first wire. The lawn mowing robot uses the phase difference method for positioning. Since the grounding end of the control circuit board is connected to the grounding piece inserted into the ground, a huge capacitor is formed between the earth and the first wire, which can reduce the phase velocity, thereby increasing the signal detection interval time, improving the accuracy of the acquisition interval time, and thus improving the positioning accuracy of the lawn mowing robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 is a perspective view of the first perspective of the docking station of this application;

[0016] Figure 2 is an enlarged view of portion A in Figure 1;

[0017] FIG3 is a perspective view of the docking station of the present application from a second perspective;

[0018] FIG4 is a bottom view of the docking station of the present application;

[0019] FIG5 is an enlarged view of portion B in FIG4 ;

[0020] FIG6 is a schematic diagram of the circuit connection of the stop in the present application;

[0021] FIG7 is a schematic diagram of the battery positioning principle of the present application;

[0022] FIG8 is a waveform timing diagram of the present application;

[0023] FIG9 is a schematic diagram of the installation structure of the conductive member and the stopper of the present application;

[0024] FIG10 is a schematic diagram of the installation structure of the conductive member and the grounding member of the present application;

[0025] FIG11 is an enlarged view of portion C in FIG10 ;

[0026] FIG12 is a top view of the conductive member of the present application;

[0027] FIG13 is an enlarged view of portion D in FIG3 ;

[0028] FIG14 is a three-dimensional diagram of the docking station of the present application from a third perspective.

[0029] In the figure: 10, docking station; 20, lawn mowing robot; 1, upright part; 11, first electrical connection end; 12, second electrical connection end; 13, third electrical connection end; 2, bottom plate part; 21, first wire trough; 22, second wire trough; 221, wire collection section; 222, wire distribution section; 223, independent section; 23, guide slope; 24, guide protrusion; 241, stabilizing section; 242, guide section; 3, grounding member; 31, second opening; 4, first wire; 5, second wire; 6, block; 61, notch; 7, conductive member; 71, clamping part; 711, clamping space; 72, mounting part; 721, first opening; 722, third opening; 73, grounding electrode; 8, fixing member; 9, fixing screw; 30, third wire; 40, wiring line; 50, third wire trough. Modes for Carrying Out the Invention

[0030] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0031] In the description of this application, it should be understood that the terms "upper," "lower," "top," and "bottom" used herein to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate 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.

[0032] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0033] In order to illustrate the technical solution provided by this application, a detailed description is given below with reference to specific drawings and embodiments.

[0034] As shown in Figures 1-8, the first aspect of an embodiment of the present application proposes a docking station 10, comprising: an upright portion 1 and a bottom plate portion 2, the upright portion 1 is provided with a control circuit board, the control circuit board is arranged in the upright portion 1 and has a first electrical connection end 11, a second electrical connection end 12 and a third electrical connection end 13; the upright portion 1 is connected to the bottom plate portion 2 and extends upward, the bottom plate portion 2 is provided with a grounding member 3 and a first wire 4, the grounding member 3 is electrically connected to the first electrical connection end 11, the first end of the first wire 4 is electrically connected to the second electrical connection end 12, and the second end of the first wire 4 is electrically connected to the third electrical connection end 13.

[0035] Based on the above technical solution, in the docking station 10 of the present application, the control circuit board in the upright part 1 (which is arranged inside the upright part 1 and not shown here) is used to send signals and transmit signals through the first wire 4. The charging terminal is arranged horizontally to facilitate the direct connection of the battery to the charging terminal after the lawn mower robot 20 passes through the bottom plate part 2. When the lawn mower robot 20 travels along the first wire 4, the control circuit board located in the upright part 1 transmits positioning signals to both ends of the first wire 4, and the lawn mower robot 20 uses the phase difference method for positioning. Specifically, in Figures 7 and 8 , s1 represents the first positioning signal injected by the control circuit board of the docking station 10 into one end of the first conductive wire 4, s2 represents the second positioning signal injected by the control circuit board of the docking station 10 into the other end of the first conductive wire 4, T0 represents the time when the first positioning signal s1 is injected, T1 represents the time when the second positioning signal s2 is injected, T2 represents the time when the mowing robot 20 receives the first positioning signal s1, and T3 represents the time when the mowing robot 20 receives the second positioning signal s2. L1 represents the length of the wire transmitted by the first positioning signal s1 on the first conductive wire 4, and L2 represents the length of the wire transmitted by the second positioning signal s2 on the first conductive wire 4. T0, T1, T2, T3, L1, L2, and the phase velocity V satisfy the following first relationship: |L1-L2|=[(T3-T1)-(T2-T0)]×V. L1, L2, and the length L of the first conductive wire 4 satisfy the following second relationship: L1+L2=L.

[0036] Combining the first and second relationships described above, L1 and L2 can be calculated. Based on L1 and L2, the direction of the robot mower 20 and the distance between the robot mower 20 and the docking station 10 can be determined, thereby achieving the positioning of the robot mower 20. Because the ground terminal of the control circuit board within the docking station 10 is connected to the grounding member 3 inserted into the ground, a significant capacitance is formed between the earth and the first conductor 4, which reduces the phase velocity. Phase velocity is the speed of propagation of a unidirectional traveling wave on a transmission line along the isophase plane. It is calculated as V = 1 / √LC, where C is the transmission line capacitance. This increases the signal detection intervals (T3 - T1) and (T2 - T0), improving the accuracy of obtaining (T3 - T1) and (T2 - T0), and thus enhancing the positioning accuracy of the robot mower 20.

[0037] In some embodiments of the present application, as shown in Figures 1, 3, and 4, the grounding member 3 is passed through the bottom plate portion 2 and extends downward. Such provision of the grounding member 3 can simply and conveniently achieve the purpose of inserting the grounding member 3 into the ground, and can stably fix the bottom plate portion 2 on the ground. The grounding member 3 can be configured as a metal nail structure. The metal material has good electrical conductivity and can well achieve electrical connection with the first electrical connection end 11; the soil in the grassland is generally relatively soft, so the nail-shaped structure can be conveniently and quickly inserted into the ground without the assistance of other tools. In some other embodiments, the grounding member 3 can be buried in the soil, and the grounding member 3 can be made of non-metallic conductive material, such as graphite material. The grounding member 3 is made of graphite material, which not only has good conductivity, but also has good corrosion resistance, which is conducive to reducing maintenance costs.

[0038] Specifically, as shown in Figures 1 and 3, a second wire 5 is also provided on the bottom plate portion 2. One end of the second wire 5 is electrically connected to the first electrical connection end 11, and the other end of the second wire 5 is electrically connected to the grounding member 3. The second wire 5 is also used to transmit signals. The first electrical connection end 11 of the control circuit board is connected to the second wire 5, and the second wire 5 is connected to the grounding member 3 inserted into the ground, thereby forming a large capacitor, thereby reducing the phase velocity and improving positioning accuracy. Specifically, the second wire 5 can be wound around the grounding member 3, and its connection with the grounding member 3 is tight and reliable, which can effectively improve the reliability of the electrical connection.

[0039] More specifically, as shown in Figures 1 and 2, a first wire groove 21 is provided on the top of the bottom plate 2. The first wire groove 21 extends from the upright portion 1 to the side end surface of the bottom plate 2, and the first wire 4 is placed in the first wire groove 21. The first wire groove 21 can fix and guide the first wire 4, allowing the first wire 4 to be placed more flat on the top of the bottom plate 2, reducing the impact of the external environment on the first wire 4.

[0040] More specifically, as shown in Figures 3-5, a second wire groove 22 is provided at the bottom of the bottom plate portion 2. The second wire groove 22 extends from the upright portion 1 to the grounding member 3, and the second wire 5 is placed in the second wire groove 22. Because the second wire 5 needs to be connected to the control circuit board in the upright portion 1, there is a certain distance between the position where the second wire 5 passes through the bottom plate portion 2 and the position where the grounding member 3 passes through the bottom plate portion 2. In this case, to ensure the flatness of the second wire 5, a second wire groove 22 can be provided at the bottom of the bottom plate portion 2, and the second wire 5 can be placed in the second wire groove 22 along the extension direction of the second wire groove 22. Finally, the second wire 5 is wrapped around the grounding member 3 to achieve electrical connection of the entire docking station 10. In some other embodiments, the grounding member 3 can be provided directly below the upright portion 1. After the second wire 5 is led out from the control circuit board, it can be extended directly downward to the grounding member 3, without the need for a second wire groove 22 at the bottom of the bottom plate portion 2, resulting in a simpler structure.

[0041] In some embodiments of the present application, as shown in Figures 3 and 4, a stopper 6 is further included, which is disposed around the periphery of the grounding member 3 and is attached to the bottom of the bottom plate 2. The stopper 6 prevents dirt from entering the connection between the bottom plate 2 and the grounding member 3, thereby preventing dirt from seeping out of the top surface of the bottom plate 2, preventing the dirt from affecting the movement of the device to be charged and preventing the dirt from affecting the aesthetics of the docking station 10.

[0042] Specifically, as shown in Figures 9-12, it also includes a conductive member 7, which is sandwiched between the block 6 and the bottom plate 2. The block 6 and the bottom plate 2 secure the conductive member 7 therebetween, preventing it from falling out and utilizing it for power transmission. The conductive member 7 can be a leaf spring structure, which can meet strength requirements while maintaining a certain degree of elasticity.

[0043] More specifically, as shown in Figures 10 and 11, the conductive member 7 is provided with a clamping portion 71, which abuts against the grounding member 3. The clamping portion 71 can clamp the grounding member 3, thereby improving the installation reliability of the grounding member 3. At the same time, due to the conductive performance of the conductive member 7, electricity can also be transmitted through the conductive member 7 to the grounding member 3, and then the electricity is conducted to the ground.

[0044] More specifically, as shown in Figures 9-12, the conductive member 7 is provided with a mounting portion 72. The mounting portion 72 defines a first opening 721 for the grounding member 3 to pass through. The clamping portion 71 defines a clamping space 711 corresponding to the first opening 721. The grounding member 3 is sequentially inserted through the bottom plate 2, the first opening 721, the clamping space 711, and the stopper 6, extending downward. The mounting portion 72 is installed between the stopper 6 and the bottom plate 2. The grounding member 3 passes through the bottom plate 2, the first opening 721, and the clamping space 711, achieving convenient and reliable installation of the grounding member 3.

[0045] More specifically, as shown in Figures 9-12, a fixing member 8 is also included. The grounding member 3 is provided with a second opening 31, and the mounting portion 72 is provided with a third opening 722 arranged above and below the second opening 31. The fixing member 8 sequentially passes through the second opening 31, the bottom plate portion 2, and the third opening 722. The fixing member 8 can mount the top platform of the grounding member 3 on the mounting portion 72, thereby further improving the installation stability of the grounding member 3 and enhancing the connection reliability of the various components.

[0046] More specifically, as shown in Figure 12, the diameter of the first opening 721 is larger than the transverse dimension of the clamping space 711. The first opening 721 is intended to allow the grounding member 3 to pass through, while the clamping space 711 is intended to utilize the elasticity of the conductive member 7 to clamp the grounding member 3. Therefore, the diameter of the first opening 721 needs to be larger than the transverse dimension of the clamping space 711 to ensure that the first opening 721 has the ability to pass through while the clamping space 711 maintains its position.

[0047] More specifically, as shown in Figures 10 and 11, the clamping portion 71 is formed by bending downward from the edge of the mounting portion 72. The downwardly bent clamping portion 71 can be formed into an integral part with the mounting portion 72, which facilitates processing and saves costs. At the same time, the elasticity of the clamping portion 71 can be used to clamp the grounding member 3 without affecting the installation stability of the grounding member 3.

[0048] In some embodiments of the present application, as shown in Figures 9-12, a grounding electrode 73 is provided on the conductive member 7, and the grounding electrode 73 is electrically connected to the second wire 5. The grounding electrode 73 can realize the electrical connection between the conductive member 7 and the second wire 5, and can better realize the transmission of power.

[0049] Specifically, as shown in FIG9 , a notch 61 is formed in the side wall of the block 6, and the ground electrode 73 extends out of the block 6 through the notch 61. Extending the ground electrode 73 out of the block 6 facilitates connection with the second lead 5, avoiding the problem of the ground electrode 73 being placed inside the block 6 and making it difficult to connect with the second lead 5.

[0050] In some embodiments of the present application, as shown in Figures 1, 3, and 4, a plurality of fixing screws 9 are further included. The fixing screws 9 are intermittently disposed through the bottom plate 2 and extend downward. The fixing screws 9 can penetrate into the ground to secure the bottom plate 2. The fixing screws 9 can be intermittently disposed at the edges of the bottom plate 2 to better secure the bottom plate 2 and prevent the edges from warping.

[0051] In some embodiments of this application, the charging terminal is a tongue-type interface, a spring-type interface, or a pin-type interface. All three interfaces are environmentally friendly, safe, durable, and vibration-resistant, and can be used as the charging terminal structure of this solution. Figure 1 shows a pin-type interface; the tongue-type interface and spring-type interface are not shown here.

[0052] In some embodiments of the present application, as shown in Figure 1 , a guide ramp 23 is provided on the top of the bottom plate 2. The guide ramp 23 is located at the intersection of the bottom plate 2 and the first cable duct 21, and is arranged to slope upward from the outside to the inside. The guide ramp 23 allows the device to be charged to be more easily moved onto the bottom plate 2, eliminating the possibility of being unable to move onto the bottom plate 2 due to height differences.

[0053] In some embodiments of the present application, as shown in Figures 3 and 6 , a third wire 30 for controlling the movement of the lawn mower robot 20 is provided on the bottom plate 2. The third wire 30 is arranged around the bottom plate 2. One end of the third wire 30 is electrically connected to the second electrical connection terminal 12, and the other end of the third wire 30 is electrically connected to the third electrical connection terminal 13. During operation, the control circuit board sends an electrical signal to the third wire 30 via the second electrical connection terminal 12 and / or the third electrical connection terminal 13. The electrical signal transmitted in the third wire 30 can be sensed by the lawn mower robot 20, thereby controlling the movement of the lawn mower robot 20. Specifically, when the robotic lawn mower 20 is mowing, the third wire 30 transmits a first signal, which is used to control the robotic lawn mower 20 to avoid the docking station 10, preventing a collision between the robotic lawn mower 20 and the docking station 10, thereby ensuring the safety of the robotic lawn mower 20 and the docking station 10. When the robotic lawn mower 20 needs to return to the docking station 10 for charging, the third wire 30 transmits a second signal, which is used to control the robotic lawn mower 20 to return to the docking station 10 for charging. The third wire 30 surrounds the bottom plate 2, allowing the robotic lawn mower 20 to sense the signal transmitted by the third wire 30 regardless of its orientation, thereby improving the reliability of the third wire 30 in controlling the movement of the robotic lawn mower 20.

[0054] Specifically, as shown in Figures 3 and 13 , a wiring harness 40 is installed at the bottom of the bottom plate 2. The wiring harness 40 surrounds the bottom plate 2. A third wiring trough 50 is provided on the side of the wiring harness 40 facing the bottom of the bottom plate 2. The third wire 30 is disposed within the third wiring trough 50. The third wiring trough 50 secures and guides the third wire 30, allowing it to maintain a fixed shape around the bottom plate 2. In other embodiments, the wiring harness 40 may not be required. Instead, the third wiring trough 50 may be provided directly at the bottom of the bottom plate 2, with the third wire 30 disposed within the third wiring trough 50.

[0055] In some embodiments of the present application, as shown in conjunction with FIG3 and FIG13 , the second wire duct 22 includes a wire collection segment 221, a wire branching segment 222, and an independent segment 223. One end of the wire branching segment 222 is connected to one end of the wire collection segment 221, and the other end of the wire branching segment 222 is connected to one end of the independent segment 223. The other end of the wire collection segment 221 is connected to the upright portion 1, and the other end of the independent segment 223 is connected to the grounding member 3. The third wire duct 50 is connected to the wire branching segment 222. During wiring, the second wire 5 and the third wire 30 are first led out from the upright portion 1, then pass through the wire collection segment 221 and enter the wire branching segment 222. The second wire 5 passes through the wire branching segment 222 and enters the independent segment 223, and is then connected to the grounding member 3. The third wire 30 passes through the wire branching segment 222 and enters the third wire duct 50, and then surrounds the bottom plate portion 2, thereby achieving wire separation of the second wire 5 and the third wire 30. Specifically, the width of the branching segment 222 is greater than the width of the collection segment 221 and the independent segment 223 , so as to separate the second conductive wire 5 from the third conductive wire 30 .

[0056] In some embodiments of the present application, as shown in FIG14 , two guide protrusions 24 are provided on the top of the base plate 2. The two guide protrusions 24 are spaced apart from each other and include a connected stabilizing segment 241 and a guide segment 242. The stabilizing segments 241 of the two guide protrusions 24 are parallel to each other, and the guide segments 242 of the two guide protrusions 24 are inclined toward each other. When the mower robot 20 needs to return to the docking station 10 to charge, the mower robot 20 travels onto the base plate 2. The wheels of the mower robot 20 first contact the guide segments 242 of the two guide protrusions 24. The guide segments 242 guide the mower robot 20 onto the stabilizing segments 241. The stabilizing segments 241 of the two guide protrusions 24 are parallel to each other, which stabilizes the driving path of the mower robot 20, allowing the mower robot 20 to travel directly toward the upright portion 1 for precise docking with the charging terminal on the upright portion 1. In other embodiments, the guide segments 242 of the two guide protrusions 24 may also be tilted away from each other, which can also guide the robotic mower 20 onto the stabilizing segment 241. When the guide segments 242 of the two guide protrusions 24 are tilted toward each other, the two guide protrusions 24 are located inside the wheels of the robotic mower 20. When the guide segments 242 of the two guide protrusions 24 are tilted away from each other, the two guide protrusions 24 are located outside the wheels of the robotic mower 20.

[0057] A second aspect of the present application provides a lawn mowing system comprising the aforementioned docking station 10 and a lawn mower robot 20. Upon detecting a low battery level or completing a mowing task, the lawn mower robot 20 automatically returns to the docking station 10 for charging and / or docking. As the lawn mower robot 20 travels along the first conductive line 4, it uses phase difference positioning to achieve fully automated operation of the entire lawn mowing system, significantly saving users time and effort and enhancing product competitiveness.

[0058] In summary, in the docking station 10 and mowing system of the present application, the control circuit board in the upright part 1 is used to send signals and transmit signals through the first wire 4. When the mowing robot 20 travels along the first wire 4, the control circuit board located in the upright part 1 transmits positioning signals to both ends of the first wire 4. The mowing robot 20 uses the phase difference method for positioning. Since the grounding end of the control circuit board is connected to the grounding piece 3 inserted into the ground, a huge capacitor is formed between the earth and the first wire 4, which can reduce the phase velocity, thereby increasing the signal detection interval time, and improving the accuracy of the acquisition interval time, thereby improving the positioning accuracy of the mowing robot 20.

[0059] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A stop, characterized in that: include: A vertical portion (1) provided with a control circuit board, wherein the control circuit board is arranged in the vertical portion (1) and has a first electrical connection end (11), a second electrical connection end (12) and a third electrical connection end (13); A bottom plate portion (2), the upright portion (1) being connected to the bottom plate portion (2) and extending upwards, the bottom plate portion (2) being provided with a grounding member (3) and a first wire (4), the grounding member (3) being electrically connected to the first electrical connection end (11), the first end of the first wire (4) being electrically connected to the second electrical connection end (12), and the second end of the first wire (4) being electrically connected to the third electrical connection end (13).

2. The stop according to claim 1, characterized in that: The grounding member (3) is disposed through the bottom plate portion (2) and extends downward.

3. The stop according to claim 2, characterized in that: A second wire (5) is also provided on the bottom plate portion (2), one end of the second wire (5) is electrically connected to the first electrical connection end (11), and the other end of the second wire (5) is electrically connected to the grounding member (3).

4. The stop according to claim 3, characterized in that: It also includes a stopper (6), which is arranged around the outer periphery of the grounding member (3) and is arranged in contact with the bottom of the bottom plate portion (2).

5. The stop according to claim 4, characterized in that: It also includes a conductive member (7), wherein the conductive member (7) is sandwiched between the stopper (6) and the bottom plate portion (2).

6. The stop according to claim 5, characterized in that: The conductive member (7) is provided with a clamping portion (71), and the clamping portion (71) abuts against the grounding member (3).

7. The stop according to claim 6, characterized in that: The conductive member (7) is provided with a mounting portion (72), the mounting portion (72) being provided with a first opening (721) for the grounding member (3) to pass through, the clamping portion (71) being provided with a clamping space (711) arranged correspondingly to the first opening (721) above and below, the grounding member (3) being sequentially passed through the bottom plate portion (2), the first opening (721), the clamping space (711) and the stopper (6) and extending downward.

8. The stop according to claim 7, characterized in that: The invention also comprises a fixing member (8), the grounding member (3) is provided with a second opening (31), the mounting portion (72) is provided with a third opening (722) arranged above and below the second opening (31), and the fixing member (8) passes through the second opening (31), the bottom plate portion (2) and the third opening (722) in sequence.

9. The stop according to claim 7, characterized in that: The diameter of the first opening (721) is greater than the transverse dimension of the clamping space (711).

10. The docking station according to claim 7, characterized in that The clamping portion (71) is formed by bending downward from the edge of the mounting portion (72).

11. The stop according to claim 5, characterized in that: A grounding electrode (73) is provided on the conductive member (7), and the grounding electrode (73) is electrically connected to the second conductive wire (5).

12. The stop according to claim 11, characterized in that A notch (61) is provided on the side wall of the stopper (6), and the grounding electrode (73) extends out of the stopper (6) through the notch (61).

13. The stop according to claim 3, characterized in that: A third wire (30) for controlling the movement of the lawn mowing robot (20) is provided on the bottom plate (2); the third wire (30) is arranged around the bottom plate (2); one end of the third wire (30) is electrically connected to the second electrical connection end (12); and the other end of the third wire (30) is electrically connected to the third electrical connection end (13).

14. The docking station according to claim 13, characterized in that A wiring line (40) is installed at the bottom of the bottom plate (2), the wiring line (40) is arranged around the bottom plate (2), a third wire groove (50) is provided on a side of the wiring line (40) facing the bottom plate (2), and the third wire (30) is arranged in the third wire groove (50); Alternatively, a third wire groove (50) is provided at the bottom of the bottom plate portion (2), and the third wire (30) is arranged in the third wire groove (50).

15. The docking station according to claim 14, characterized in that A second wire trough (22) is provided at the bottom of the bottom plate portion (2), the second wire trough (22) comprising a wire collection segment (221), a wire distribution segment (222) and an independent segment (223), one end of the wire distribution segment (222) being connected to one end of the wire collection segment (221), one end of the wire distribution segment (222) being connected to one end of the independent segment (223), the other end of the wire collection segment (221) being connected to the upright portion (1), the other end of the independent segment (223) being connected to the grounding member (3), and the third wire trough (50) being connected to the wire distribution segment (222).

16. The docking station according to claim 1, characterized in that: Two guide protrusions (24) are arranged at the top of the bottom plate portion (2), the two guide protrusions (24) are arranged relatively spaced apart, the guide protrusions (24) comprise a stabilizing section (241) and a guide section (242) connected to each other, the stabilizing sections (241) of the two guide protrusions (24) are parallel to each other, and the guide sections (242) of the two guide protrusions (24) are inclined in a direction approaching or moving away from each other.

17. A mowing system, characterized in that: include: A docking station (10) and a lawn mowing robot (20) according to any one of claims 1 to 16.

Citation Information

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