Signal mast device and intelligent lawnmower

Abstract

Signal mast device, characterized in that it comprises: a first mast part which is at least partially inserted into the positioning base body; a second mast part which is at least partially inserted into the positioning base body, the second mast part being rotatably connected to the first mast part, a first plane being formed between the second mast part and the first mast part; a third mast part which is at least partially inserted into the positioning base body, wherein the third mast part is rotatably connected to the first mast part, wherein a second plane is formed between the third mast part and the first mast part; wherein the signal mast device has a first mounting state and a second mounting state, wherein in the first mounting state the first plane is coplanar with the second plane, wherein in the second mounting state the first plane intersects the second plane.

Description

Technical FieldThe utility model belongs to the technical field of weed control equipment and relates in particular to a signal mast device and a smart lawn mower.Prior ArtThe present smart lawn mower can achieve accurate positioning of the smart lawn mower by two parts: the mobile station and the reference station. When the reference station is fastened to the signal mast device, the design of the threaded column is generally fixed to the underside of the signal mast device, so that when the reference station is fastened, only the thread can be screwed directly into the ground. The stability of this fixing method is insufficient and tends to be tilted, resulting in inaccurate positioning accuracy.SUMMARY OF THE INVENTIONTherefore, the object to be achieved by the utility model is, in particular, to make the mounting stability of the signal mast device of the smart lawn mower insufficient.To achieve the aforementioned object, the invention provides a signal mast device, comprising: a first mast part that is inserted at least partially into the positioning base body, wherein the positioning base body is inserted for positioning the signal mast device; a second mast part that is inserted at least partially into the positioning base body, wherein the second mast part is rotatably connected to the first mast part, wherein a first plane is formed between the second mast part and the first mast part; a third mast part that is inserted at least partially into the positioning base body, wherein the third mast part is rotatably connected to the first mast part, wherein a second plane is formed between the third mast part and the first mast part; wherein the signal mast apparatus has a first mounting state and a second mounting state, wherein in the first mounting state the first plane is coplanar with the second plane, wherein in the second mounting state the first plane intersects the second plane.Alternatively, in the first mounted state of the signal mast device, the second mast part and the third mast part are arranged symmetrically on both sides of the first mast part with respect to the axis of the first mast part.Alternatively, a first connection position is formed between the second mast part and the first mast part, wherein a second connection position is formed between the third mast part and the first mast part, wherein the distance of the first connection position from the end of the first mast part is equal to the distance of the second connection position from the end of the first mast part.Alternatively, the second mast part and the third mast part both include a first portion and a second portion, one end of the first portion is connected to the second portion in a bent manner, the other end of the first portion is connected to the first mast part, and the second portion is used for inserting the positioning base body; when the signal mast apparatus is in the first mounting state and the second mounting state, the first portion of the second mast part and the first portion of the third mast part may simultaneously contact the surface of the positioning base body.Alternatively, the first connection position forms an insertion portion with the end of the first mast part, wherein the lengths of the insertion portion, the second portion of the second mast part and the second portion of the third mast part are the same.Alternatively, the signal mast apparatus further comprises a locking mechanism, wherein the locking mechanism is respectively disposed between the first mast part and the second mast part, the first mast part, and the third mast part, wherein the locking mechanism locks the positions of the second mast part and the third mast part relative to the first mast part when the signal mast apparatus is in the first mounting state or the second mounting state.Alternatively, the first mast part, the second mast part, and the third mast part all have an insertion end for inserting a positioning base body, the insertion end having an insertion structure, the insertion structure being at least one of a pointed shape and a hook-like shape.The utility model provides a signal mast device, comprising: a first mast part that is inserted at least partially into the positioning base body, wherein the positioning base body is inserted for positioning the signal mast device; a second mast part that is inserted at least partially into the positioning base body, wherein a first plane is formed between the second mast part and the first mast part; a third mast part that is inserted at least partially into the positioning base body, wherein a second plane is formed between the third mast part and the first mast part; wherein one of the second mast part and the third mast part is rotatably connected to the first mast part; wherein the signal mast device has a first mounting state and a second mounting state, wherein in the first mounting state the first plane is coplanar with the second plane, wherein in the second mounting state the first plane intersects the second plane.The utility model provides a signal mast apparatus, characterized in that it comprises: a first mast part that is inserted at least partially into the positioning base body, the positioning base body being inserted for positioning the signal mast apparatus; a second mast part that is inserted at least partially into the positioning base body, a first plane being formed between the second mast part and the first mast part; a third mast part that is inserted at least partially into the positioning base body, a second plane being formed between the third mast part and the first mast part; one of the second mast part and the third mast part being rotatably connected to the first mast part; wherein the signal mast device has a first mounting state and a second mounting state, wherein the angle formed between the first plane and the second plane is less than or equal to 10 degrees in the first mounting state, wherein the angle formed between the first plane and the second plane is greater than 10 degrees in the second mounting state.The utility model also provides a smart lawn mower including a sensing member, a communication member, and the above-mentioned signal mast device, wherein the sensing member and communication member are communicatively connected to the signal mast device.The technical solution of the utility model is to provide a first mast part, a second mast part and a third mast part and use a rotational connection between the three so that the second mast part and the third mast part can be rotated in the circumferential direction with respect to the first mast part so that the signal mast device has a first mounting state and a second mounting state. In the first mounted state, the first plane formed by the first mast part and the second mast part and the second plane formed by the first mast part and the third mast part lie on the same large plane, so that the two form a coplanar relationship. At this time, the first mast part, the second mast part, and the third mast part are all inserted into the ground, and the three are collinear from top to bottom. Therefore, this mounting manner is suitable for situations in which the positioning base body has a narrow boundary that can ensure that the first mast part, the second mast part and the third mast part are all fixed to the positioning base body stably at the same time and the fixing steps are easy to perform.In the second mounted state, the first plane and the second plane lie in two different planes, so that they intersect. In this state, the first mast part, the second mast part and the third mast part are respectively inserted into the ground, and in plan view, the three mast parts form a polyline, wherein the insertion points into the ground of the three mast parts define a triangle in successive connection. By the above arrangement method, the signal post device forms a three-point positioning shape on the one hand, and its positioning is more accurate and stable, thereby ensuring the attachment stability and positioning accuracy of the smart lawn mower. On the other hand, the signal mast device can be mounted in various shapes as needed, so that the mounting shape can satisfy the needs of various situations. In actual use, even in the second mounting state, the positions of the second mast part and the third mast part relative to the first mast part can be further adjusted as needed to change the specific shape of the formed triangle, so that the adaptability of the signal mast device to deployment scenarios is stronger.Figure OverviewIn order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings which have to be used in the specific embodiments or the description of the prior art are briefly presented below. It goes without saying that the drawings in the following description are some embodiments of the present invention. For those skilled in the art, other drawings according to these drawings can be obtained without any creative work. FIG. 1 is the main view of the signal mast apparatus of the first embodiment of the utility model in the first mounting state; FIG. 2 is a plan view of FIG. 1 ; FIG. 3 is the main view of the signal mast apparatus of the first embodiment of the utility model in the second mounting state; FIG. 4 is a plan view of FIG. 3.DETAILED DESCRIPTION OF EMBODIMENTSThe technical solutions of the present invention will be clearly and fully described below in connection with the accompanying drawings, the described embodiments being, of course, part of the embodiments of the present invention and not all of the embodiments. The utility model will be described in more detail below with reference to the accompanying drawings and in conjunction with embodiments. Note that the embodiments and the features of the embodiments in the utility model can be combined with each other without conflict.It should be noted that the terms "first", "second" and the like are used in the specification and claims of the utility model and the above-mentioned accompanying drawings to distinguish similar objects, rather than describing a particular order or sequence.In the present utility model, azimuthal words such as "top, bottom, top, bottom" are generally used for the direction shown in the drawings or for the parts themselves in the vertical, perpendicular or gravity direction, unless otherwise stated; similarly, "inside and outside" refers to the inside and outside with respect to the contours of the parts themselves for ease of understanding and description, but the above azimuthal words are not intended to limit the present utility model.In order to solve the problem that the mounting stability of the signal mast device of the smart lawn mower is insufficient, the present application provides a signal mast device and a smart lawn mower.Embodiment 1The signal mast device according to FIGS. 1 to 4, comprising a first mast part 10, a second mast part 20 and a third mast part 30, wherein the first mast part 10, second mast part 20 and the third mast part 30 are all at least partially inserted into a positioning base body for fastening the signal mast device. The second mast part 20 is rotatably connected to the first mast part 10, wherein a first plane is formed between the second mast part 20 and the first mast part 10; wherein the third mast part 30 is rotatably connected to the first mast part 10, wherein a second plane is formed between the third mast part 30 and the first mast part 10; wherein the signal mast apparatus has a first mounting state and a second mounting state, wherein in the first mounting state the first plane is coplanar with the second plane, wherein in the second mounting state the first plane intersects the second plane.This embodiment is to provide a first mast part 10, a second mast part 20 and a third mast part 30, and use a rotational connection between the three so that the second mast part 20 and the third mast part 30 can be rotated in the circumferential direction with respect to the first mast part 10 so that the signal mast apparatus has a first mounting state and a second mounting state. In the first mounted state, as in FIGS. 1 and 2, the first plane formed by the first mast part 10 and the second mast part 20 and the second plane formed by the first mast part 10 and the third mast part 30 lie on the same large plane, so that the two form a coplanar relationship. At this time, the first mast part 10, the second mast part 20, and the third mast part 30 are all inserted into the ground, and the three are collinear from top to bottom. Therefore, this mounting manner is suitable for situations in which the positioning base body has a narrow boundary that can ensure that the first mast part 10, the second mast part 20, and the third mast part 30 are all stably fixed to the positioning base body at the same time and the fixing steps are easy to perform.In the second mounted state, as in FIGS. 3 and 4, the first plane and the second plane lie in two different planes, so that they intersect. In this state, the first mast part 10, the second mast part 20 and the third mast part 30 are respectively inserted into the ground and, in plan view, the three mast parts form a polyline, wherein the insertion points into the ground of the three mast parts define a triangle in successive connection. By the above arrangement method, the signal post device forms a three-point positioning shape on the one hand, and its positioning is more accurate and stable, thereby ensuring the attachment stability and positioning accuracy of the smart lawn mower. On the other hand, the signal mast device can be mounted in various shapes as needed, so that the mounting shape can satisfy the needs of various situations. In actual use, even in the second mounting state, the positions of the second mast part 20 and the third mast part 30 relative to the first mast part 10 can be further adjusted as needed to change the specific shape of the formed triangle, so that the adaptability of the signal mast device to deployment scenarios is stronger.As shown in FIGS. 1 and 2, in this embodiment, in the first mounting state of the signal mast apparatus, the second mast part 20 and the third mast part 30 are arranged symmetrically on both sides of the first mast part 10 with respect to the axis of the first mast part 10. That is, the structural shapes of both the second mast part 20 and the third mast part 30 are substantially the same and are located on both sides of the first mast part 10 in the first mounting state, so that the signal mast device in this state overall forms a structure symmetrical to the axis of the first mast part 10. In this way, when the signal mast device is introduced into the ground, the forces on both sides of the first mast part 10 can be distributed more evenly in order to avoid excessive forces on one side which lead to tilting or even overturn and to improve the stability after the introduction into the ground.In this embodiment, a first connection position is formed between the second mast part 20 and the first mast part 10, wherein a second connection position is formed between the third mast part 30 and the first mast part 10, wherein the distance of the first connection position from the end of the first mast part is equal to the distance of the second connection position from the end of the first mast part 10. In this way, both the first connection position and the second connection position are at substantially the same position. As shown in FIGS. 1 and 3, the first connection position and the second connection position are substantially the position of the 0-base position, so that both the second mast part 20 and the third mast part 30 have the same force position for the first mast part 10. Moreover, because the positions of the second mast part 20 and the third mast part 30 are opposite, so that the force of the two on the first mast part 10 can be partially or completely compensated, the stability is further ensured. At the same time, both the second mast part 20 and the third mast part 30 of the present embodiment can be rotated so that even if the connection positions of the two are formed at the same position, the setting range is not affected, so that the three mast parts can be set in an arbitrary state as needed.The second mast part 20 and the third mast part 30 of the present embodiment have the same structural shape. Taking the example of the second mast part 20, it comprises a first portion 21 and a second portion 22, one end of the first portion 21 is connected in a kinked manner to the second portion 22 and the other end of the first portion 21 is connected to the first mast part 10. In this way, the second mast part 20 integrally forms an inverted L-shaped shape, the transverse portion being the first portion 21, the longitudinal portion being the second portion 22, the first portion 21 being used to establish the connection, the second portion 22 being used to insert the positioning base body, i.e. the floor, and to achieve the fastening function. Of course, the specific configurations of the second mast part 20 and the third mast part 30 are not limited to the above-mentioned shapes of the present embodiment, but may be adopted as needed, and other shapes such as N-shape may be used.Since the second mast part 20 and the third mast part 30 of the present embodiment have the same shape and symmetrical arrangement as in FIG. 1, the second mast part 20 and the third mast part 30 are inserted into the ground at approximately the same depth, so that both the second mast part 20 and the third mast part 30 can be inserted simultaneously and the depth of both inserts simultaneously reaches the maximum. The signal mast apparatus is in the first mounting state, the second mounting state, etc., and the first portion 21 of the second mast part 20 and the first portion 21 of the third mast part 30 are simultaneously in contact with the surface of the positioning base body, i.e., both the first portion 21 of the second mast part 20 and the first portion 21 of the third mast part 30 may be simultaneously supported on the ground, so that the second mast part 20 and the third mast part 30 may be simultaneously supported. This makes the support more stable and reliable and further improves the stability of the signal mast device.Preferably, in this embodiment, the lengths of the first portion 21 of the second mast part 20 and the first portion 21 of the third mast part 30 are the same and the lengths of the second portion 22 of the second mast part 20 and the second portion 22 of the third mast part 30 are also the same, respectively, so that the second mast part 20 and the third mast part 30 are the same not only in structure but also in size, i.e. the second mast part 20 and the third mast part 30 are the same component, so that in addition to the above symmetrical balancing effect they also simplify the manufacture, thereby reducing the manufacturing cost and allowing simplified assembly since no differentiation of the components is required.Of course, in addition to setting two identical second mast parts 20 and third mast parts 30, the second mast part 20 and the third mast part 30 can also be used in different structures, different sizes, etc. However, it must be ensured that the second mast part 20 and the third mast part 30 can be rotated relative to the first mast part 10 and both can be inserted into the ground in order to ensure a fastening.In this embodiment, the first connection position with the end of the first mast part 10 forms the insertion portion 11 so that the lower portions of the first mast part 10, the second mast part 20 and the third mast part 30 can be inserted into the ground to enable stable attachment. At the same time, the lengths of the insertion portion 11, the second portion 22 of the second mast part 20 and the second portion 22 of the third mast part 30 are equal, so that the first portion 21 of both the second mast part 20 and the third mast part 30 extend along the radial direction of the first mast part 10 so that the axis of the first portion 21 and the axis of the first mast part 10 are perpendicular to each other. At the same time, the first portion 21 is also perpendicular to the second portion 22, so that the lower part of the signal mast device forms an inverted zigzag structure, so that the first mast part 10, the second mast part 20 and the third mast part 30 can all have a fixing function, which ensures the stability, accuracy and reliability of the signal mast device.The first mast part 10, the second mast part 20, and the third mast part 30 of the present embodiment each have an insertion end for inserting the positioning base body, the insertion end being substantially the lower end of the insertion portion 11 of the first mast part 10, the lower end of the second mast part 20, and the lower end of the second portion 22 of the third mast part 30, the insertion end having an insertion structure, the insertion structure being arranged to facilitate the insertion of the three mast parts into the ground, thereby reducing difficulties in use.The specific design of the insertion structure can be arbitrary, for example, in the form of a pointed, hook-like structure. In the form of a pointed shape, the mast part can be easily inserted into the ground on the one hand, and on the other hand the construction is relatively simple. The hook-like structure helps prevent the insertion end from dropping off the ground through the structure shape. The hook-like structure may be in the form of a bend and extend upward, so that when the mast part is subjected to an upward force, the hook-like structure can prevent the signal mast device from dropping from the ground by the interaction force with the ground and other components in the ground, and can achieve the effect of further improving the stability of the attachment. The insertion structure of the first mast part 10, the second mast part 20, and the third mast part 30 may be arranged in the same shape or in different shapes.The rotational connection between the second mast part 20 and the first mast part 10 or between the third mast part 30 and the first mast part 10 can be realized in the form of a slide rail connection, a joint connection and the like. The axis of rotation of the second mast part 20 and the third mast part 30 relative to the first mast part 10 is the axis of the first mast part 10 itself, i.e. the second mast part 20 and the third mast part 30 rotate about the circumferential direction of the first mast part 10. Between the first mast part 10 and the second mast part 20 and between the first mast part 10 and the third mast part 30, the locking mechanism can be provided as needed. The function of the locking mechanism is to lock the positions of the second mast part 20 and the third mast part 30 relative to the first mast part 10, so that when the signal mast device is inserted into the ground, the positions of the second mast part 20 and the third mast part 30 relative to the first mast part 10 can be locked by the locking mechanism, so that the signal mast device is in and held in the first mounting state or the second mounting state, thereby stabilizing the state of the signal mast device, thereby preventing the positioning accuracy from being lowered due to the accidental detachment of the signal mast device at the reference station during the positioning of the smart lawn mower.Alternatively, the specific configuration of the locking mechanism may be any, for example, by clamping locking or by other means such as bolt locking, as long as the second mast part 20 and the third mast part 30 can be locked to the first mast part 10.As shown in FIGS. 1 to 4, the signal mast apparatus in this embodiment further includes a communication component 40, the communication component 40 being disposed on the first mast part 10, wherein in the first mounting state and the second mounting state, the communication component 40 is exposedly disposed and used to communicate and cooperate with the external components. The first mast part 10 of this embodiment has a certain length, and the communication component 40 is disposed on the top of the first mast part 10 so that, on the one hand, the communication component 40 is exposed and not inserted under the ground, on the other hand, the communication component 40 is placed at a higher position and communication quality between the communication component 40 and a device such as a remote computer is improved, thereby improving communication performance in two ways to avoid signal interference and the like.The present embodiment also provides a smart lawn mower including a sensing member, a communication member, and the above-mentioned signal mast device, wherein the sensing member and the communication member are communicatively connected to the signal mast device. The sensing component may take over components such as cameras and the communication component may take over components such as antennas. The communication component may cooperate with the communication component 40 of the signal mast apparatus for wired or wireless communication such that the status of the signal mast apparatus may be detected and sent to the computer in time to enable real-time monitoring.Embodiment 2In this embodiment, the signal mast device comprises a first mast part 10, a second mast part 20 and a third mast part 30, wherein the first mast part 10, the second mast part 20 and the third mast part 30 are all at least partially inserted into a positioning base body for fastening the signal mast device. A first plane is formed between the second mast part 20 and the first mast part 10; a second plane is formed between the third mast part 30 and the first mast part 10; one of the second mast part 20 and the third mast part 30 is rotatably connected to the first mast part 10, wherein the signal mast apparatus has a first mounting state and a second mounting state, wherein in the first mounting state the first plane is coplanar with the second plane, wherein in the second mounting state the first plane intersects the second plane.The difference between this embodiment and the first embodiment is that in this embodiment, not both the second mast part 20 and the third mast part 30 are rotatably connected to the first mast part 10, but only one of them is connected to the first mast part 10, so that the relative positional relationship between the first plane and the second plane can be adjusted by changing the rotatably connected mast part, so that the signal mast apparatus is switched between the first mounting state and the second mounting state, whereby the mast part can be more easily rotated at an angle, whereby the technical effects of the first embodiment can also be realized.Embodiment 3In this embodiment, the signal mast device comprises a first mast part 10, a second mast part 20 and a third mast part 30, wherein the first mast part 10, the second mast part 20 and the third mast part 30 are all at least partially inserted into a positioning base body for fastening the signal mast device. A first plane is formed between the second mast part 20 and the first mast part 10; a second plane is formed between the third mast part 30 and the first mast part 10; one of the second mast part 20 and the third mast part 30 is rotatably connected to the first mast part 10, wherein the signal mast apparatus has a first mounting state and a second mounting state, wherein the angle formed between the first plane and the second plane is less than or equal to 10 degrees in the first mounting state, wherein the angle formed between the first plane and the second plane is greater than 10 degrees in the second mounting state. In this embodiment, the angle between the first plane and the second plane can be adjusted to clarify that the second mast part and the third mast part can be rotated at any angle relative to the axis of the first mast part to adapt to different scenarios, which improves the scene diversity of the mounting shape of the signal mast device. Therefore, this embodiment also enables the realization of the technical effects described in the first embodiment.From the above description, it is apparent that the above embodiment of the utility model achieves the following technical effects: 1. it solves the problem that the stability of mounting of the signal mast device of the smart lawn mower is insufficient; 2. the signal mast device forms a three-point positioning shape so that its positioning becomes more accurate and stable, ensuring the accuracy of positioning of the smart lawn mower; 3. the signal mast device can be installed in various shapes as needed, so that the manner of mounting can meet the needs in various situations, thereby making the scene flexibility of the signal mast device more adaptive; 4. the overall structure is simple and easy to operate.Obviously, the above-described embodiments represent only some, but not all, embodiments of the present invention. Other variations and modifications that will be possible to those skilled in the art without inventive intervention based on the embodiments of the present invention also fall within the scope of this invention.In summary, a signal mast apparatus and a smart lawn mower are disclosed. The signal mast apparatus includes: a first mast part; a second mast part, the second mast part being rotatably connected to the first mast part, a first plane being formed between the second mast part and the first mast part; a third mast part, the third mast part being rotatably connected to the first mast part, a second plane being formed between the third mast part and the first mast part; the signal mast apparatus having a first mounting state and a second mounting state, the first plane being coplanar with the second plane in the first mounting state, the first plane intersecting the second plane in the second mounting state. The utility model solves the problem of the insufficient mounting stability in the prior art of the signal mast apparatus of a smart lawn mower.List of reference characters10 first mast part 11 insertion section 20 second mast part 21 first section 22 second section 30 third mast part 40 communication component

Claims

A signal mast apparatus characterized by comprising: a first mast part at least partially inserted into the positioning base body; a second mast part at least partially inserted into the positioning base body, the second mast part being rotatably connected to the first mast part, a first plane being formed between the second mast part and the first mast part; a third mast part at least partially inserted into the positioning base body, the third mast part being rotatably connected to the first mast part, a second plane being formed between the third mast part and the first mast part; wherein the signal mast apparatus has a first mounting state and a second mounting state, wherein in the first mounting state, the first plane is coplanar with the second plane, wherein in the second mounting state, the first plane intersects the second plane.The signal mast device according to claim 1, characterized in that in the first mounting state of the signal mast device, the second mast part and the third mast part are arranged symmetrically on both sides of the first mast part with respect to the axis of the first mast part.The signal mast apparatus according to claim 1 or 2, characterized in that a first connection position is formed between the second mast part and the first mast part, wherein a second connection position is formed between the third mast part and the first mast part, wherein the distance of the first connection position from the end of the first mast part is equal to the distance of the second connection position from the end of the first mast part.The signal mast apparatus according to claim 3, characterized in that the second mast part and the third mast part both comprise a first portion and a second portion, one end of the first portion is connected to the second portion in a bent manner, the other end of the first portion is connected to the first mast part, and the second portion is used for inserting the positioning base body; when the signal mast apparatus is in the first mounting state and the second mounting state, the first portion of the second mast part and the first portion of the third mast part may be simultaneously in contact with the surface of the positioning base body.The signal mast device according to claim 4, characterized in that the first connection position forms an insertion portion with the end of the first mast part, wherein the lengths of the insertion portion, the second portion of the second mast part and the second portion of the third mast part are equal.The signal mast apparatus according to any one of the preceding claims, characterized in that the signal mast apparatus further comprises a locking mechanism, wherein the locking mechanism is respectively disposed between the first mast part and the second mast part, the first mast part and the third mast part, wherein the locking mechanism locks the positions of the second mast part and the third mast part relative to the first mast part when the signal mast apparatus is in the first mounting state or the second mounting state.The signal mast apparatus according to any one of the preceding claims, characterized in that the first mast part, the second mast part, and the third mast part all have an insertion end for inserting a positioning base body, the insertion end having an insertion structure, the insertion structure being at least one of a pointed shape and a hook-like shape.A signal mast apparatus comprising: a first mast part inserted at least partially into the positioning base body; a second mast part inserted at least partially into the positioning base body, wherein a first plane is formed between the second mast part and the first mast part; a third mast part inserted at least partially into the positioning base body, wherein a second plane is formed between the third mast part and the first mast part, wherein one of the second mast part and the third mast part is rotatably connected to the first mast part; wherein the signal mast apparatus has a first mounting state and a second mounting state, wherein in the first mounting state, the first plane is coplanar with the second plane, wherein in the second mounting state, the first plane intersects the second plane.A signal mast apparatus comprising: a first mast part inserted at least partially into the positioning base body; a second mast part inserted at least partially into the positioning base body, wherein a first plane is formed between the second mast part and the first mast part; a third mast part inserted at least partially into the positioning base body, wherein a second plane is formed between the third mast part and the first mast part, wherein one of the second mast part and the third mast part is rotatably connected to the first mast part; wherein the signal mast apparatus has a first mounting state and a second mounting state, wherein the angle formed between the first plane and the second plane is less than or equal to 10 degrees in the first mounting state, wherein the angle formed between the first plane and the second plane is greater than 10 degrees in the second mounting state.A smart lawn mower characterized by comprising a sensing member, a communication member, and a signal mast device according to any one of claims 1 to 9, wherein the sensing member and the communication member are communicatively connected to the signal mast device.

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