Automatic navigation device capable of carrying low skip car and identification method

Abstract

The invention discloses an automatic navigation device capable of carrying a low skip car and an identification method, and the automatic navigation device comprises an AGV main body which comprises a horizontally arranged chassis assembly; the main control mechanism is fixedly and vertically arranged on the chassis assembly; the first depth camera and the first radar are fixedly arranged on the chassis assembly and are far away from one side of the main control mechanism; the second depth camera is fixedly arranged on the rear side of the main control mechanism; the second radar is fixedly arranged at the upper end of the main control mechanism; and the jacking mechanism is movably arranged on the chassis assembly and can be folded and accommodated in the chassis assembly. The low skip car is sensed and identified through the depth camera and / or the radar, and the low skip car is quickly transferred by the automatic navigation device through cooperation of the AGV main body and the jacking mechanism.

Description

Technical Field

[0001] The present invention relates to the field of AGV technology, and in particular to an automatic navigation device and an identification method capable of transporting a low material vehicle. Background Art

[0002] Automated Guided Vehicle (AGV) is a device that uses a single or multiple drive wheels to provide power to enable the AGV to move forward, backward or horizontally. There are many low material carts in the existing industrial logistics handling process, and it is difficult to use conventional AGVs to reach under them for handling.

[0003] Publication number CN115744744A provides an automatic guided pallet handling transport vehicle, which includes a main vehicle and a split vehicle; the main vehicle includes: a body, a receiving groove arranged parallel to the left and right sides of the body, a lift-off mechanism fixedly installed on the body, a main vehicle driving wheel assembly and a movable universal wheel; the split vehicle includes: a lifting mechanism, a split vehicle driving wheel assembly and a lifting plate; the split vehicle can be placed in the receiving groove of the main vehicle, and there can be one or two split vehicles; the lift-off mechanism is used to lift and lower the split vehicle. Although this technical solution can realize the handling operation of low material vehicles, the transport vehicle using this technical solution needs to perform multiple steps to transport low material vehicles, which is time-consuming and affects the handling efficiency to a certain extent; therefore, an automatic navigation device and identification method capable of transporting low material vehicles are provided to solve the above problems. Summary of the invention

[0004] One of the purposes of the present invention is to provide an automatic navigation device and an identification method capable of transporting a low material vehicle, so as to solve the problem that the existing automatic navigation device takes a long time to transport the low material vehicle and has a low transport efficiency.

[0005] The automatic navigation device and identification method capable of transporting a low material vehicle of the present invention can be realized by the following technical solutions: The present invention provides an automatic navigation device capable of transporting a low material cart, comprising: an AGV body, which comprises a horizontally arranged chassis assembly; a main control mechanism fixedly and vertically arranged on the chassis assembly; a first depth camera and a first radar respectively fixedly arranged on the chassis assembly and away from one side of the main control mechanism; a second depth camera fixedly arranged at the rear side of the main control mechanism; a second radar fixedly arranged at the upper end of the main control mechanism; sensing and identifying the low material cart through one or more of the first depth camera, the first radar, the second depth camera and the second radar, so that the center line of the chassis assembly is in line with the center line of the low material cart; A lifting mechanism is movably arranged on the chassis assembly and can be folded and accommodated in the chassis assembly. The lifting mechanism performs lifting operations on the low material cart arranged thereon.

[0006] In one embodiment, the AGV body further includes a position sensor, which is fixedly disposed on the back of the main control mechanism and below the second depth camera.

[0007] In one embodiment, the chassis assembly includes an integrally formed chassis body, on which a receiving cavity is provided, and the lifting mechanism can be folded and accommodated in the receiving cavity; a driving wheel structure and a plurality of universal wheels are respectively arranged at the lower end of the chassis body.

[0008] In one embodiment, buffer pads are respectively arranged on two opposite ends of the chassis body; and buffer strips are arranged on the sides of the chassis body.

[0009] In one embodiment, the main control mechanism includes an outer shell, which is a hollow cavity, and the outer shell and the chassis body are welded together into an L shape; a circuit board and a battery assembly are respectively fixed in the outer shell; a display screen, a button assembly and a charging assembly are respectively fixed and penetrated through the outer shell and are respectively electrically connected to the circuit board.

[0010] In one embodiment, the lifting mechanism includes at least one lifting component, which can be folded and accommodated in the accommodating cavity; and a lifting plate that is transmission-connected to at least one of the lifting components and movably arranged above the chassis body.

[0011] In one embodiment, the jacking assembly includes a driving device, which is arranged in the accommodating cavity; a connecting seat transmission-connected to the driving device; a first jacking structure and a second jacking structure, which are respectively transmission-connected to the connecting seat and respectively connected to the lifting plate.

[0012] In one embodiment, the first lifting structure and the second lifting structure both include a fixed plate, which is fixedly disposed in the accommodating cavity; a first transmission rod having one end transmission-connected to the connecting seat and the other end transmission-connected to the first lifting rod; the other end of the first lifting rod is fixedly connected to the lifting plate and transmission-connected to the second lifting rod; the second lifting rod is in contact connection with the lifting plate.

[0013] In one embodiment, the AGV body further includes a third radar and a third depth camera; the third radar is fixedly disposed on the chassis assembly and is arranged opposite to the first radar; and the third depth camera is fixedly disposed on the front side of the main control mechanism.

[0014] The present invention provides a method for identifying a vehicle capable of transporting a low material, which is applied to any of the automatic navigation devices described above, and comprises the following steps: S1, the automatic navigation device moves to the preset handling station of the low material vehicle through the chassis assembly; S2, sensing and identifying the low-profile vehicle through one or more of a first depth camera, a first radar, a second depth camera, and a second radar, and adjusting the center line of the chassis assembly and the center line of the low-profile vehicle to be collinear, so that the chassis assembly can extend into the bottom of the low-profile vehicle; S3, when the chassis assembly enters the preset position at the bottom of the low material cart, the lifting mechanism lifts the low material cart arranged thereon, so that the low material cart is out of contact with the bottom surface; S4, driving the low material cart arranged on the lifting mechanism to be transferred to a preset placement site through the chassis assembly; and then placing the low material cart at the preset placement site through the cooperation of the chassis assembly and the lifting mechanism.

[0015] Compared with the prior art, the automatic navigation device and identification method of the present invention capable of transporting low material vehicles have the following beneficial effects: The present invention provides an automatic navigation device and identification method capable of transporting low material carts, which sense and identify the low material carts through one or more of a first depth camera, a first radar, a second depth camera and a second radar, adjust the center line of a chassis assembly and the center line of the low material cart to be collinear, so that the chassis assembly passes through the bottom of the low material cart, and then through the cooperation of an AGV body and a lifting mechanism, the automatic navigation device is used to quickly transport the low material cart, which effectively solves the problem that the existing automatic navigation device takes a long time to transport the low material carts and has a low transport efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of an automatic navigation device capable of transporting a low material vehicle according to the present invention; Figure 2 yes Figure 1 The schematic diagram of another part of the exploded structure of an automatic navigation device capable of transporting a low material vehicle of the present invention is shown, including an AGV body and a lifting mechanism; Figure 3 yes Figure 2The structural diagram of the AGV main body shown; Figure 4 yes Figure 2 The structural diagram of the AGV main body from another perspective is shown; Figure 5 yes Figure 2 An exploded structural diagram of the jacking mechanism shown, including a jacking assembly; Figure 6 yes Figure 5 A schematic diagram of the structure of the lifting assembly shown; Figure 7 It is a structural schematic diagram of a low material vehicle in an automatic navigation device capable of transporting a low material vehicle according to the present invention; Figure 8 It is a flow chart of an identification method capable of transporting a low material vehicle according to the present invention.

[0018] In the figure, the following are marked: 10, automatic navigation device; 11, AGV body; 111, chassis assembly; 1111, chassis body; 11111, accommodating chamber; 1112, driving wheel structure; 1113, universal wheel; 1114, buffer pad; 1115, buffer strip; 112, main control mechanism; 1121, outer shell; 1122, display screen; 1123, button assembly; 1124, charging assembly; 113, first depth camera; 114, first radar; 115, second depth camera; 116, second radar; 117, in-position sensor; 118, third radar; 1 19, third depth camera; 12, lifting mechanism; 121, lifting assembly; 1211, driving device; 1212, connecting seat; 1213, first lifting structure; 12131, fixing plate; 12132, first transmission rod; 12133, first lifting rod; 12134, second lifting rod; 1214, second lifting structure; 122, lifting plate; 20, low material cart; 21, front wheel mechanism; 22, material rack vertical beam; 23, rear wheel mechanism; 24, material rack front cross beam. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 and Figure 2 As shown, the present invention is an automatic navigation device 10 capable of transporting low material carts, which mainly includes an AGV body 11 and a lifting mechanism 12. The AGV body 11 is in an L-shaped structure, which is a transporting body; the lifting mechanism 12 is movably arranged on the AGV body 11 and can be folded and accommodated in the AGV body 11. The lifting mechanism 12 is used to perform lifting operations on the low material cart 20 set thereon, thereby facilitating automatic transport operations on the low material cart 20.

[0022] See also Figure 1-Figure 7As shown, in this embodiment, the AGV body 11 includes a chassis component 111, a main control mechanism 112, a first depth camera 113, a first radar 114, a second depth camera 115, a second radar 116, an in-position sensor 117, a third radar 118 and a third depth camera 119; the chassis component 111 is horizontally arranged, which is a driving support body; the main control mechanism 112 is fixedly vertically arranged on one side of the chassis component 111 and is L-shaped with the chassis component 111, which is respectively connected to the chassis component 111, the first depth camera 113, the first radar 114, the second depth camera 115, the second radar 116, the in-position sensor 117, the third radar 118, the third depth camera 119 119 is electrically connected; the first depth camera 113 and the first radar 114 are respectively fixedly arranged on the chassis component 111 and on one side away from the main control mechanism 112, and the front wheel mechanism 21 of the low material cart 20 is sensed and identified by the first depth camera 113 and the first radar 114 respectively, and the center line of the low material cart 20 is calculated, and the center line of the chassis component 111 and the center line of the low material cart 20 are adjusted to be colinear, so that the chassis component 111 can extend into the preset position at the bottom of the low material cart 20, and when the chassis component 111 enters the bottom of the low material cart 20, the rear wheel mechanism 23 on the low material cart 20 is identified by the first radar 114, and the center line of the low material cart 20 is calculated. The relative position of the low material cart 20 on the chassis assembly 111 is adjusted to be collinear with the center line of the chassis assembly 111 and the center line of the low material cart 20, so that the chassis assembly 111 can be extended to the preset position at the bottom of the low material cart 20; the second depth camera 115 is fixedly arranged at the rear side of the main control mechanism 112, and the second radar 116 is fixedly arranged at the upper end of the main control mechanism 112, and the two of them respectively sense and identify the vertical beam 22 of the material rack of the low material cart 20, calculate the center line of the low material cart 20, and adjust the center line of the chassis assembly 111 to be collinear with the center line of the low material cart 20, so that the chassis assembly 111 can be extended to the preset position at the bottom of the low material cart 20; the arrival sensor 1 17 is arranged on the back of the main control mechanism 112 and below the second depth camera 115. After the chassis assembly 111 enters the bottom of the low material cart 20, the front cross beam 24 of the material rack on the low material cart 20 is sensed in position through the position sensor 117. When the chassis assembly 111 extends to the preset position at the bottom of the low material cart 20, the jacking mechanism 12 starts to work; the third radar 118 is fixedly arranged on the chassis assembly 111 and is arranged opposite to the first radar 114, and the third depth camera 119 is fixedly arranged on the front side of the main control mechanism 112. The third radar 118 and the third depth camera 119 cooperate to perform real-time sensing and obstacle avoidance operations on the forward running status of the automatic navigation device 10.In some embodiments, the AGV body 11 may also include only one or more of the first depth camera 113, the first radar 114, the second depth camera 115 and the second radar 116. The low material cart 20 is sensed and identified by the first depth camera 113, the first radar 114, the second depth camera 115 or the second radar 116, so that the center line of the chassis assembly 111 is collinear with the center line of the low material cart 20, so that the chassis assembly 111 can extend into the preset position at the bottom of the low material cart 20.

[0023] See also Figure 2-Figure 4 As shown, in this embodiment, the chassis assembly 111 includes a chassis body 1111, a driving wheel structure 1112 and a plurality of universal wheels 1113; the chassis body 1111 is integrally formed, and serves as a supporting body; the driving wheel structure 1112 and the plurality of universal wheels 1113 are respectively arranged at the lower end of the chassis body 1111, and the chassis body 1111 is driven to move by the driving wheel structure 1112, and the plurality of universal wheels 1113 cooperate with the driving wheel structure 1112, so that the chassis body 1111 can move forward, backward or turn.

[0024] See also Figure 3 and Figure 4 As shown, specifically, a housing cavity 1111 is provided on the chassis body 1111, and the lifting mechanism 12 can be folded and accommodated in the housing cavity 1111; the driving wheel structure 1112 includes a driving motor and a rotating wheel, the driving motor is fixedly provided on the chassis body 1111 and can rotate forward and reverse, the rotating wheel is connected to the driving motor in a transmission manner, and the driving motor drives the rotating wheel and the chassis body 1111 to move in turn. Specifically, buffer pads 1114 are respectively provided on the opposite side ends of the chassis body 1111, which can be in contact with the lifting assembly 12, and the rigid contact connection between the lifting assembly 12 and the chassis body 1111 is converted into a flexible contact connection through the buffer pads 1114; the side of the chassis body 1111 is provided with a buffer strip 1115, and the rigid contact connection between the side of the chassis body 1111 and other objects is converted into a flexible contact connection through the buffer strip 1115.

[0025] See also Figure 1-Figure 4As shown, in this embodiment, the main control mechanism 112 includes an outer shell 1121, a circuit board (not shown), a display screen 1122, a battery assembly (not shown), a button assembly 1223 and a charging assembly 1224; the outer shell 1121 is a hollow cavity, which is welded integrally with the chassis body 1111 to form an L shape; the circuit board (not shown) and the battery assembly (not shown) are respectively fixedly arranged in the outer shell 1121, and the circuit board (not shown) is respectively electrically connected to the driving wheel structure 1112, the display screen 1122, the battery assembly (not shown), the button assembly 1223, the charging assembly 1224, the first depth camera 113, the first radar 114, the second depth camera 115, the second radar 116, the in-position sensor 117, the third radar 118, and the third depth camera 119, and the control technology adopted by them is It is a prior art, so its specific control process and the product model used will not be described here. As long as it meets the requirements of this application, the battery assembly (not shown) provides power for the circuit board (not shown), the driving wheel structure 1112, the display screen 1122, the first depth camera 113, the first radar 114, the second depth camera 115, the second radar 116, the in-place sensor 117, the third radar 118, and the third depth camera 119; the display screen 1122, the button assembly 1223 and the charging assembly 1224 are respectively fixedly arranged on the outer shell 1121, the display screen 1122 displays the operating status of the automatic navigation device 10 in real time, the button assembly 1223 controls the switch, emergency stop and function setting of the automatic navigation device 10, and the charging assembly 1224 performs charging operations on the battery assembly (not shown).

[0026] See also Figure 1 , Figure 2 and Figure 5 As shown, the lifting mechanism 12 includes at least one lifting component 121 and a lifting plate 122; at least one lifting component 121 can be folded and accommodated in the accommodating cavity 1111; the lifting plate 122 is transmission-connected to at least one lifting component 121 and movably arranged above the chassis body 1111, and at least one lifting component 121 drives the lifting plate 122 to perform lifting and lowering movements in the longitudinal direction, thereby lifting the low material vehicle 20 arranged on the lifting plate 122. In this embodiment, two lifting components 121 are folded and accommodated in the accommodating cavity 1111 and are transmission-connected to the lifting plate 122 respectively; in other embodiments, the number of the lifting components 121 can be one, three, four or other plurality, and the number is set according to actual needs.

[0027] See also Figure 5 and Figure 6As shown, in this embodiment, the jacking assembly 121 includes a driving device 1211, a connecting seat 1212, a first jacking structure 1213 and a second jacking structure 1214; the driving device 1211 is arranged in the accommodating cavity 1111; the connecting seat 1212 is transmission-connected to the driving device 1211, and the driving device 1211 drives the connecting seat 1212 to move laterally; the first jacking structure 1213 and the second jacking structure 1214 are respectively transmission-connected to the connecting seat 1212 and connected to the lifting plate 122, and the connecting seat 1212 synchronously drives the first jacking structure 1213 and the second jacking structure 1214 to move longitudinally, thereby realizing the jacking operation of the lifting plate 122.

[0028] See also Figure 5 and Figure 6 As shown, specifically, the driving device 1211 adopts a screw motor, and the connecting seat 1212 is movably arranged on the screw of the driving device 1211; the first lifting structure 1213 includes a fixed plate 12131, a first transmission rod 12132, a first lifting rod 12133 and a second lifting rod 12134; the fixed plate 12131 is fixedly arranged in the accommodating cavity 11111; one end of the first transmission rod 12132 is transmission-connected to the connecting seat 1212, and the other end thereof is The first lifting rod 12133 is in transmission connection; the other end of the first lifting rod 12133 is fixedly connected to the lifting plate 122 and is in transmission connection with the second lifting rod 12134; the second lifting rod 12134 is in contact connection with the lifting plate 122, and the driving device 1211 synchronously drives the first lifting rod 12133 and the second lifting rod 12134 to move in the longitudinal direction through the connecting seat 1212 and the first transmission rod 12132 in sequence, thereby driving the lifting plate 122 to realize the lifting operation. In this embodiment, the structure of the second lifting structure 1214 is similar to that of the first lifting structure 1213, so its specific structure is not repeated here.

[0029] See also Figure 8 As shown, the present invention provides an identification method capable of transporting a low material vehicle, which is applied to any of the above-mentioned automatic navigation devices 10, and includes the following steps: S1, the automatic navigation device 10 moves to the preset transport station of the low material vehicle 20 through the chassis assembly 111; S2, the low material cart 20 is sensed and identified by one or more of the first depth camera 113, the first radar 114, the second depth camera 115 and the second radar 116, and the center line of the chassis assembly 111 is adjusted to be collinear with the center line of the low material cart 20, so that the chassis assembly 111 can extend into the bottom of the low material cart 20; specifically, the front wheel mechanism 21 of the low material cart 20 is sensed and identified by the first depth camera 113 or the first radar 114 provided on the chassis assembly 111, the center line of the low material cart 20 is calculated, and the center line of the chassis assembly 111 and the center line of the low material cart 20 are adjusted. The center lines of the low material cart 20 are collinear, or when the chassis assembly 111 enters the bottom of the low material cart 20, the rear wheel mechanism 23 on the low material cart 20 is identified by the first radar 114, the relative position of the low material cart 20 on the chassis assembly 111 is calculated, and the center line of the chassis assembly 111 is adjusted to be collinear with the center line of the low material cart 20; the second depth camera 115 or the second radar 116 set on the main control mechanism 112 is used to sense and identify the vertical beam 22 of the material frame of the low material cart 20, the center line of the low material cart 20 is calculated, and the center line of the chassis assembly 111 is adjusted to be collinear with the center line of the low material cart 20; S3, when the chassis assembly 111 enters the preset position at the bottom of the low material cart 20, the lifting mechanism 12 lifts the low material cart 20 arranged thereon, so that the low material cart 20 is out of contact with the bottom surface; specifically, the position sensor 117 arranged on the main control mechanism 112 senses the position of the front crossbeam 24 of the material rack on the low material cart 20, and when the chassis assembly 111 enters the preset position at the bottom of the low material cart 20, the lifting mechanism 12 starts to work; S4, the low material cart 20 set on the lifting mechanism 12 is driven by the chassis component 111 to be transferred to the preset placement site; and then the low material cart 20 is placed at the preset placement site through the cooperation of the chassis component 111 and the lifting mechanism 12.

[0030] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An automatic navigation device capable of transporting a low material vehicle, characterized in that: include: The AGV body includes a horizontally arranged chassis component; a main control mechanism fixedly arranged vertically on the chassis component; a first depth camera and a first radar respectively fixedly arranged on the chassis component and away from one side of the main control mechanism; a second depth camera fixedly arranged at the rear side of the main control mechanism; a second radar fixedly arranged at the upper end of the main control mechanism; sensing and identifying the low material vehicle through one or more of the first depth camera, the first radar, the second depth camera and the second radar, so that the center line of the chassis component is collinear with the center line of the low material vehicle; A lifting mechanism is movably arranged on the chassis assembly and can be folded and accommodated in the chassis assembly. The lifting mechanism performs lifting operations on the low material cart arranged thereon.

2. The automatic navigation device capable of transporting a low material vehicle according to claim 1, characterized in that: The AGV body also includes a position sensor, which is fixedly arranged on the back of the main control mechanism and below the second depth camera.

3. The automatic navigation device capable of transporting a low material vehicle according to claim 1, characterized in that: The chassis assembly comprises an integrally formed chassis body, on which a receiving cavity is arranged, and the lifting mechanism can be folded and received in the receiving cavity; a driving wheel structure and a plurality of universal wheels are respectively arranged at the lower end of the chassis body.

4. The automatic navigation device capable of transporting a low material vehicle according to claim 3, characterized in that: Buffer pads are respectively arranged on the opposite side ends of the chassis body; and buffer strips are arranged on the side edges of the chassis body.

5. The automatic navigation device capable of transporting a low material vehicle according to claim 3, characterized in that: The main control mechanism includes an outer shell, which is a hollow cavity. The outer shell and the chassis body are welded as a whole to form an L shape; a circuit board and a battery assembly are respectively fixed in the outer shell; a display screen, a button assembly and a charging assembly are respectively fixed and penetrated through the outer shell and are respectively electrically connected to the circuit board.

6. The automatic navigation device capable of transporting a low material vehicle according to claim 4, characterized in that: The lifting mechanism comprises at least one lifting assembly, which can be folded and accommodated in the accommodating cavity; and a lifting plate which is transmission-connected to at least one of the lifting assemblies and movably arranged above the chassis body.

7. The automatic navigation device capable of transporting a low material vehicle according to claim 6, characterized in that: The jacking assembly includes a driving device, which is arranged in the accommodating cavity; a connecting seat drivingly connected to the driving device; a first jacking structure and a second jacking structure respectively drivingly connected to the connecting seat and respectively connected to the lifting plate.

8. The automatic navigation device capable of transporting a low material vehicle according to claim 7, characterized in that: The first lifting structure and the second lifting structure both include a fixed plate, which is fixedly arranged in the accommodating cavity; a first transmission rod with one end transmission-connected to the connecting seat, and the other end of which is transmission-connected to the first lifting rod; the other end of the first lifting rod is fixedly connected to the lifting plate and transmission-connected to the second lifting rod; the second lifting rod is in contact with the lifting plate.

9. The automatic navigation device capable of transporting a low material vehicle according to claim 1, characterized in that: The AGV body also includes a third radar and a third depth camera; the third radar is fixedly arranged on the chassis assembly and is arranged opposite to the first radar; the third depth camera is fixedly arranged on the front side of the main control mechanism.

10. A method for identifying a vehicle capable of transporting a low material vehicle, applied to the automatic navigation device according to any one of claims 1 to 9, characterized in that: The steps include: S1, the automatic navigation device moves to the preset handling station of the low material vehicle through the chassis assembly; S2, sensing and identifying the low-profile vehicle through one or more of a first depth camera, a first radar, a second depth camera, and a second radar, and adjusting the center line of the chassis assembly and the center line of the low-profile vehicle to be collinear, so that the chassis assembly can extend into the bottom of the low-profile vehicle; S3, when the chassis assembly enters the preset position at the bottom of the low material cart, the lifting mechanism lifts the low material cart arranged thereon, so that the low material cart is out of contact with the bottom surface; S4, driving the low material cart arranged on the lifting mechanism to be transferred to a preset placement site through the chassis assembly; and then placing the low material cart at the preset placement site through the cooperation of the chassis assembly and the lifting mechanism.

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