Smart electric wagon capable of IOT-based automatic driving

Abstract

The present invention provides a smart electric wagon capable of IoT-based automatic driving, comprising a wagon body, wagon wheels, a handle portion, a fingerprint recognition lock portion, a passenger portion, a safety fixing unit for securing a passenger, and a loading unit for loading and unloading cargo.

Description

Technology Field

[0001] The present invention relates to a smart electric wagon capable of IoT-based automatic driving, and more specifically, to a smart electric wagon capable of IoT-based automatic driving equipped with a wagon body, wagon wheels, a handle part, a fingerprint recognition lock part, a passenger part, a safety fixing unit for fixing a passenger, and a loading unit for loading and unloading cargo. Background Technology

[0002] Electric wagons are currently widely used as a means of public transportation in cities around the world, including Korea, and have become particularly popular as a means of pedestrian mobility, similar to bicycles.

[0003] However, these electric wagons have safety issues due to a high accident rate while driving, and require effort and experience from the driver.

[0004] Consequently, electric wagons equipped with autonomous driving technology emerged; however, there was a problem in that the existing autonomous driving technology was a modified version of technology applied to general automobiles and was not suitable for electric wagons.

[0005] In addition, unlike conventional cars, electric wagons are small, and there is a problem in that it is difficult to apply autonomous driving technology used in existing vehicles.

[0006] Accordingly, the present invention aims to develop autonomous driving technology suitable for electric wagons and to provide an electric wagon individually designed considering the size and characteristics of the electric wagon.

[0007] To this end, the present invention presents a smart electric wagon equipped with a wagon body, wagon wheels, a handle, a fingerprint recognition lock, a passenger compartment, a safety fixing unit, a loading unit, etc., utilizing IoT technology.

[0008] The smart electric wagon developed in this way combines autonomous driving functions with IoT technology to provide a safe and smart driving experience while minimizing the driver's effort and experience, and has the potential to offer a variety of additional scalable functions. The problem to be solved

[0009] The present invention has been devised to solve the above-mentioned problems, and the objective of the present invention is to provide a smart electric wagon capable of IoT-based automatic driving equipped with a wagon body, wagon wheels, a handle, a fingerprint recognition lock, and a passenger compartment.

[0010] In addition, another objective of the present invention is to provide a smart electric wagon capable of IoT-based autonomous driving equipped with a safety fixing unit for securing a passenger.

[0011] In addition, another objective of the present invention is to provide a smart electric wagon capable of IoT-based automatic driving equipped with a loading unit for loading and unloading cargo.

[0012] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0013] A smart electric wagon capable of IoT-based automatic driving according to an embodiment of the present invention for solving the above problem may include a wagon body that forms a passenger and cargo space.

[0014] In one embodiment, a smart electric wagon capable of IoT-based automatic driving comprises wagon wheels rotatably installed at each lower corner of the wagon body to move the wagon body, a handle portion vertically fastened to the rear end of the wagon body, a fingerprint recognition lock portion installed on the handle portion to recognize a passenger's fingerprint and control the wagon power ON / OFF, and a passenger portion installed toward the rear of the wagon body to allow boarding, wherein the handle portion includes a handle portion for adjusting the angle of each wagon wheel and a brake portion for controlling the rotation of each wagon wheel, and the wagon body comprises a horizontal frame installed in a straight line so that the wagon wheels can rotate, a vertical frame installed in an L-shape on the horizontal frame, a plurality of support frames installed at regular intervals in a straight line on the shape in which the horizontal frame and the vertical frame are installed, a front body frame installed upward from both ends of the front horizontal frame, a rear body frame installed upward from both ends of the rear horizontal frame, and a vertical frame installed in the center of the vertical frame so that the vertical frame hinges and rotates It may include a central hinge portion configured to be folded, a folded frame formed by being folded to connect the front main body frame and the rear main body frame, and a folded frame support portion formed to extend from the folded frame toward the front main body frame and the rear main body frame and configured to be folded by the hinge rotation of the central hinge portion.

[0015] In one embodiment, a smart electric wagon capable of IoT-based autonomous driving may include a safety fixing unit installed in the passenger compartment to secure a passenger, and a loading unit installed in the wagon body to load and unload cargo.

[0016] In one embodiment, the safety fixing unit comprises a unit adjustment part installed upward from the rear end of the boarding part and configured to be adjustable in length, and a safety fixing part installed forward from the unit adjustment part and configured in a belt shape to fix the upper body, wherein the unit adjustment part comprises a frame support plate installed on the upper surface of the rear end of the boarding part, a first adjustment frame installed upward from the rear end of the boarding part, a frame lifting rail installed along the internal length direction of the first adjustment frame, a lifting guide part installed inside the first adjustment frame at a certain distance from the frame lifting rail, a second adjustment frame installed to be vertically movable toward the interior of the first adjustment frame along the frame lifting rail and configured to be guided by the lifting guide part when lifting, a frame end plate installed at the uppermost part of the frame lifting rail and configured to prevent the second adjustment frame from detaching, and an adjustment control part installed on one side of the upper part of the first adjustment frame and configured to control the second adjustment frame to be lifted to adjust the height of the unit adjustment part, and The safety fixing part comprises a first fixing part having a 'C' shape, wherein fastening protrusions and fastening members are formed protruding at regular intervals on one side, a buckle part is formed protruding at one end, and a '⊂'-shaped buckle groove is formed at the other end to be fastened to the buckle part; a second fixing part integrally formed in a 'C' shape at the other end of the first fixing part, wherein protrusion grooves are formed at regular intervals on one side to be fastened to the fastening protrusions and fastening members; and the buckle part comprises a guide pulley part rotatably installed at regular intervals inside, a buckle belt installed to rotate around the guide pulley part at regular intervals, wherein guide protrusions are formed protruding at regular intervals on the upper surface of the buckle part to guide it to be fastened to the buckle groove, and a driving pulley installed to engage with each of the guide pulley parts to drive the guide pulley part to rotate.The guide pulley portion may include a pulley rotation shaft rotatably installed inside the buckle portion; a first belt pulley installed at both ends of the pulley rotation shaft to rotate along with the rotation of the pulley rotation shaft to rotate the buckle belt; a second belt pulley inserted into the circumference of the pulley rotation shaft and positioned inwardly from each of the first belt pulleys to rotate along with the rotation of the pulley rotation shaft; a pulley connection portion installed to face the first belt pulley from one side of the second belt pulley; a U-shaped connecting projection portion protruding from the pulley connection portion and installed to connect from the second belt pulley toward the first belt pulley; a shaft fixing portion embedded inside the second belt pulley and inserted into the circumference of the pulley rotation shaft to fix the pulley rotation shaft; and a pulley spring inserted into the circumference of the shaft fixing portion to mitigate the impact generated when guiding the buckle portion.

[0017] In one embodiment, the connecting projection comprises: a projection body having a 'ㅁ' shape and a hollow interior; a fixing head portion inserted inwardly from the lower part of the projection body in an 'ㅗ' shape and configured to be coupled with the first belt pulley; a head portion fixing member installed to fix the fixing head portion at the upper interior of the projection body; a spring fixing head inserted into the circumference of the fixing head portion and embedded inside the projection body; a projection spring inserted into the circumference of the fixing head portion and configured to rest on the spring fixing head to generate elastic force; and a fixing projection portion inserted to protrude at regular intervals from the lower surface of the fixing head portion and configured to fix the fixing head portion to the first belt pulley, wherein the fixing projection portion comprises an upper projection portion configured to be inserted into the lower surface of the fixing head portion and a lower projection portion configured to be inserted into the upper surface of the first belt pulley and connected and fixed to the upper projection portion, and the upper projection portion comprises an upper support shaft having an 'ㅣㅣ' shape and on the circumference of the upper support shaft It comprises an upper projection head provided in a 'Y' shape to be inserted and fixed to the upper projection portion from the fixed head portion, an upper support member provided to be inserted into the upper circumference of the upper support shaft and to support the upper projection head, an upper projection spring provided to be inserted into the circumference of the upper support shaft and positioned below the upper projection head to generate elastic force, and an upper connecting member provided to be inserted into the lower circumference of the upper support shaft and to support the upper projection spring, wherein the lower projection portion comprises a lower support shaft in an 'II' shape, a lower connecting member provided to be inserted into the upper circumference of the lower support shaft and connected integrally with the upper connecting member, and a lower projection spring provided to be inserted into the circumference of the lower support shaft and elastically supported by the lower connecting member.The safety fixing unit may further include a lower projection head provided in a 'Y' shape to be inserted into the circumference of the lower support shaft and to fix the lower projection from the first belt pulley, and a lower support member provided to be inserted into the lower circumference of the lower support shaft and to support the lower projection head, wherein the safety fixing unit operates to prevent detachment from the boarding part when a passenger boards, adjusts the height of the safety fixing part in the unit adjustment part, and the safety fixing part secures and fixes the upper body of the passenger.

[0018] In one embodiment, the loading unit comprises: a unit frame arranged along the longitudinal direction of the rear main body frame; a frame support member installed at the upper and lower ends of the unit frame to support the unit frame from the rear main body frame; a vertical roller member rotatably installed at regular intervals along the internal longitudinal direction of the unit frame; a horizontal roller member rotatably installed at regular intervals along the internal longitudinal direction of the unit frame and configured to connect between the spaced arrangements of the vertical roller members; a frame insertion member connected to the vertical roller members at regular intervals and inserted toward the rear main body frame to support the unit frame; a moving member connecting member installed at regular intervals to move along the horizontal roller member; a connecting member moving member installed to slide along one surface of the unit frame at regular intervals from the moving member connecting member; and a connecting member installed at regular intervals on one surface of the connecting member moving member to load and unload cargo. The vertical roller member comprises a vertical roller frame in the shape of a 'U' and vertical rollers rotatably installed on both sides of the central part of the vertical roller frame. The horizontal roller member comprises a horizontal roller frame arranged in the shape of a 'two' and the horizontal roller A connecting member installed at both ends of a frame and configured to connect to one end of a vertical roller frame, and a horizontal roller rotatably installed at the center of a horizontal roller frame, wherein the fastening member comprises a pivot shaft installed on one surface of the fastening member moving part, a pivot bracket rotatably installed at the lower part of the pivot shaft, a pivot housing rotatably installed on the upper part of the pivot shaft and the pivot bracket, a pivot cylinder filled with gas for cushioning action inside the pivot housing, a cushioning member installed to cushion the upper part of the pivot housing, and an upper frame support member installed on the upper part of the cushioning member and configured to be supported by the fastening member moving part.It may include a lower frame support member installed at the lower part of the above-mentioned pivot bracket and provided to be supported by the above-mentioned fastening member movable part; a support member buffer member installed on one surface of the above-mentioned fastening member movable part and configured to be movable in a buffer member lifting groove formed on one side of the above-mentioned pivot bracket and configured to mitigate shock when the above-mentioned fastening member is driven; a cylinder pressing shaft inserted toward the above-mentioned pivot cylinder from the above-mentioned pivot bracket and configured to enable piston movement; an upper rail frame installed in a straight line direction from the above-mentioned pivot bracket; a lower frame installed in a straight line direction from the above-mentioned pivot bracket; a U-shaped member fixing part installed in the center of the above-mentioned pivot frame; a member moving part installed to be slidably movable along the length direction of the above-mentioned pivot frame; and a fastening member configured to be movable up and down toward the member fixing part from the member moving part to fasten and secure a load.

[0019] In one embodiment, the member moving part comprises: a moving part wheel provided at regular intervals to slide along the upper rail frame; a wheel frame installed upward from each of the moving part wheels; a moving part body installed on the upper part of the wheel frame and configured to raise and lower the fastening member; a member lifting part built inside the moving part body and configured to raise and lower the fastening member; and a control part installed on the upper part of the moving part body and configured to control the loading unit. The member fixing part comprises a seating part provided at both upper ends to be seated when the fastening member is raised or lowered. The seating part comprises a seating part plate installed at both upper ends of the member fixing part; a frame pivoting part installed upward from one side of the upper surface of the seating part plate; a body support bracket installed upward from the other side of the upper surface of the seating part plate; a spring body in the shape of an 'I' rotatably installed on the body support bracket; a seating spring inserted into the circumference of the spring body to generate elastic force; and the spring body The loading unit may further include a body pivot portion inserted to penetrate, a roller frame provided in a '「' shape on the frame pivot portion, with its lower portion rotatably connected to the front of the body pivot portion and its central portion rotatably connected to the frame pivot portion, and a mounting roller rotatably connected to the upper portion of the roller frame to rotatably support a load for mounting. The loading unit may further include the feature that, when loading a load, the connecting portion fixes the end portion of the load while the connecting portion movable portion descends along the horizontal roller portion of the unit frame to mount it, and when unloading a load, the connecting portion movable portion rises along the horizontal roller portion of the unit frame to release the load fixed by the connecting portion. Effects of the invention

[0020] According to the present invention, a smart electric wagon capable of IoT-based automatic driving is provided, comprising a wagon body, wagon wheels, a handle portion, a fingerprint recognition lock portion, a passenger portion, a safety fixing unit for fixing a passenger, and a loading unit for loading and unloading cargo.

[0021] In terms of functionality, the driver can drive the wagon without manual operation through the automatic driving function, and while driving, they can easily obtain necessary driving information through the artificial intelligence assistant function.

[0022] In terms of effectiveness, the wagon's power can be turned ON / OFF by recognizing the driver's fingerprint through the fingerprint recognition lock, which can help prevent theft and enhance security.

[0023] In terms of effectiveness, the safety fixing unit securely fastens the occupant, ensuring high safety and providing a stable riding environment even while driving.

[0024] In terms of work effect, through the loading unit, cargo can be loaded and unloaded, loading operations are easy, and efficiency in cargo transportation can be provided.

[0025] The effects according to the present invention are not limited to those exemplified above, and a wider variety of effects are included within the present invention. Brief explanation of the drawing

[0026] FIG. 1 illustrates an overall embodiment of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 2 illustrates various angles of embodiments of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 3 illustrates an embodiment of the handle portion of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 4 illustrates an embodiment of the handle, passenger compartment, and safety fixing unit of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 5 illustrates an embodiment of a safety fixing unit of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 6 illustrates an embodiment of a safety fixing part of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 7 illustrates an example of the detailed configurations of the safety fixing part of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 8 illustrates an assembly example of a connecting projection part of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 9 illustrates an assembly diagram and an embodiment of a loading unit of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 10 illustrates an assembly diagram and an embodiment of a vertical roller section and a horizontal roller section of a smart electric wagon capable of IoT-based automatic driving according to the present invention. FIG. 11 illustrates an embodiment of a fastening part of a smart electric wagon capable of IoT-based automatic driving according to the present invention. Specific details for implementing the invention

[0027] Hereinafter, various embodiments are described in more detail with reference to the attached drawings. The embodiments described in this specification may be modified in various ways. Specific embodiments may be depicted in the drawings and described in detail in the detailed description. However, specific embodiments disclosed in the attached drawings are intended only to facilitate understanding of various embodiments. Accordingly, the technical concept is not limited by specific embodiments disclosed in the attached drawings, and it should be understood that it includes all equivalents or substitutions that fall within the spirit and scope of the invention.

[0028] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but these components are not limited by the aforementioned terms. The aforementioned terms are used solely for the purpose of distinguishing one component from another.

[0029] In this specification, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. When a component is described as being “connected” or “connected” to another component, it should be understood that it may be directly connected to or connected to that other component, or that there may be other components in between. On the other hand, when a component is described as being “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

[0030] Meanwhile, a "module" or "part" for a component as used in this specification performs at least one function or operation. Furthermore, a "module" or "part" may perform a function or operation by hardware, software, or a combination of hardware and software. Additionally, a plurality of "modules" or a plurality of "parts," excluding a "module" or "part" that must be performed on specific hardware or on at least one processor, may be integrated into at least one module. A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0031] Furthermore, in describing the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the essence of the invention, such detailed description is abbreviated or omitted.

[0032] FIGS. 1 to 4 illustrate embodiments of a smart electric wagon capable of IoT-based automatic driving according to the present invention at various angles.

[0033] Referring to FIGS. 1 to 4, a smart electric wagon capable of IoT-based automatic driving may include a wagon body (10), wagon wheels (20), a handle part (30), a fingerprint recognition lock part (40), and a passenger part (50).

[0034] The wagon body (10) can be configured to form a passenger and cargo space.

[0035] Additionally, the wagon body (10) may include a horizontal frame (11), a vertical frame (12), a support frame (13), a front body frame (14), a rear body frame (15), a central hinge part (16), a bending frame (17), and a bending frame support part (18).

[0036] The horizontal frame (11) can be provided so that the wagon wheel (20) can be rotatably installed in a straight line.

[0037] The vertical frame (12) can be provided to be installed in an 'I' direction on the horizontal frame (11).

[0038] A plurality of support frames (13) may be provided so as to be installed at regular intervals in a straight line direction in the shape where the horizontal frame (11) and the vertical frame (12) are installed.

[0039] The front main body frame (14) may be provided to be installed upward at both ends of the front horizontal frame (11).

[0040] The rear main body frame (15) may be provided to be installed upward at both ends of the rear horizontal frame (11).

[0041] The central hinge portion (16) may be installed in the center of the vertical frame (12) so that the vertical frame (12) can be folded by hinge rotation.

[0042] The folded frame (17) can be formed by folding so that the front body frame (14) and the rear body frame (15) are connected.

[0043] The bending frame support (18) may be formed to extend from the bending frame (17) toward the front main body frame and the rear main body frame, and may be provided to be folded by the hinge rotation of the central hinge part (16).

[0044] Wagon wheels (20) may be rotatably installed at each lower corner of the wagon body (10) to move the wagon body (10).

[0045] The handle portion (30) may be provided to be attached vertically to the rear end of the wagon body (10).

[0046] Additionally, the handle portion (30) may include a handle portion (31) for adjusting the angle of each wagon wheel (20).

[0047] Additionally, the handle portion (30) may include a brake portion (32) that controls the rotation of each wagon wheel (20).

[0048] A fingerprint recognition lock (40) may be installed on the handle (30) to recognize the passenger's fingerprint and control the ON / OFF of the wagon power.

[0049] The boarding section (50) may be installed facing the rear of the wagon body (10) to allow a passenger to board.

[0050] At this time, as shown in the drawing, the passenger section (50) may additionally have wheels installed so that the wagon body (10) and the passenger section (50) can move organically together with the wagon wheels (20).

[0051] In one embodiment, map information is received through an IoT function built into the wagon body (10), and the vehicle drives automatically based on the map information, and can arrive at a destination without driver operation.

[0052] In one embodiment, the driver's destination can be recognized through an artificial intelligence assistant function built into the wagon body (10) and road information, traffic conditions, weather information, etc., or commands can be recognized and executed through a voice recognition function.

[0053] In one embodiment, the wagon can be controlled remotely or IoT devices in the house can be controlled from the wagon through an IoT function built into the wagon body (10).

[0054] In one embodiment, information such as the driver's heart rate, blood pressure, and body temperature is collected through IoT functions and biosensors embedded in the wagon body (10) to monitor the health condition and provide guidance to stop driving when necessary.

[0055] FIGS. 5 to 8 illustrate embodiments of a safety fixing unit for a smart electric wagon capable of IoT-based automatic driving according to the present invention.

[0056] Referring to FIGS. 5 to 8, a smart electric wagon capable of IoT-based automatic driving may include a safety fixing unit (100) installed in the passenger compartment (50) to fix the passenger.

[0057] The safety fixing unit (100) may include a unit adjustment unit (200) that is installed upward at the rear end of the boarding section (50) and is configured to be adjustable in length.

[0058] The unit adjustment section (200) may include a frame support plate (210), a first adjustment frame (220), a frame lifting rail (230), a lifting guide section (240), a second adjustment frame (250), a frame finishing plate (260), and an adjustment control section (270).

[0059] The frame support plate (210) may be provided to be installed on the upper surface of the rear end of the boarding part (50).

[0060] The first adjustment frame (220) may be provided to be installed upward at the rear end of the boarding section (50).

[0061] The frame lifting rail (230) may be provided to be installed along the internal length direction of the first adjustment frame (220).

[0062] The lifting guide section (240) may be provided to be installed at a certain distance from the frame lifting rail (230) inside the first adjustment frame (220).

[0063] The second adjustment frame (250) may be installed to be able to move up and down toward the interior of the first adjustment frame (220) along the frame lifting rail (230), and may be provided to be guided when moving up and down by the lifting guide part (240).

[0064] A frame end plate (260) may be installed at the top of the frame lifting rail (230) to prevent the second adjustment frame (250) from coming off.

[0065] The control unit (270) may be installed on one side of the upper part of the first control frame (220) to control the second control frame (250) to raise and lower, thereby controlling the height of the unit control unit (200).

[0066] The safety fixing unit (100) may include a safety fixing part (300) that is installed facing forward in the unit adjustment part (200) and is provided in a belt shape to fix the upper body of the occupant.

[0067] The safety fixing part (300) may include a first fixing part (310) and a second fixing part (320).

[0068] The first fixing part (310) may be provided in a 'C' shape, with fastening protrusions (311) and fastening members (312) formed protruding at regular intervals on one side, a buckle part (313) formed protruding at one end, and a '⊂' shaped buckle groove (313a) formed at the other end to be fastened to the buckle part (313).

[0069] The buckle portion (313) may include a guide pulley portion (330), a buckle belt (340), and a drive pulley (350).

[0070] The guide pulley section (330) may be provided to be rotatably installed at regular intervals inside.

[0071] Additionally, the guide pulley portion (330) may include a pulley rotation shaft (331), a first belt pulley (332), a second belt pulley (333), a pulley connection portion (334), a connection projection portion (334a), a shaft fixing portion (335), and a pulley spring (336).

[0072] The pulley rotation shaft (331) may be provided to be rotatably installed inside the buckle portion (313).

[0073] The first belt pulley (332) can be installed at both ends of the pulley rotation shaft (331) to rotate along with the rotation of the pulley rotation shaft (331) to rotate the buckle belt (340).

[0074] The second belt pulley (333) can be inserted into the circumference of the pulley rotation shaft (331) and positioned inwardly from each of the first belt pulleys (332) so as to rotate along with the rotation of the pulley rotation shaft (331).

[0075] The pulley connection (334) can be installed so as to face the first belt pulley (332) from one side of the second belt pulley (333).

[0076] The connecting projection (334a) may be provided in a 'U' shape that protrudes from the pulley connecting portion (334) and is installed to connect from the second belt pulley (333) toward the first belt pulley (332).

[0077] Additionally, the connecting projection (334a) may include a projection body (3341), a fixed head part (3342), a head part fixing member (3343), a spring fixing head (3344), a projection spring (3345), and a fixed projection part (3346).

[0078] The protruding body (3341) may be provided in a 'ㅁ' shape and have a hollow interior.

[0079] The fixed head portion (3342) may be inserted in an inward direction from the lower part of the protruding body (3341) in a 'T' shape and may also be provided to be connected to the first belt pulley (332).

[0080] The head portion fixing member (3343) can be installed to fix the fixed head portion (3342) at the upper inner part of the protruding body (3341).

[0081] The spring fixing head (3344) may be provided to be inserted into the periphery of the fixing head portion (3342) and embedded inside the protrusion body (3341).

[0082] The protruding spring (3345) may be inserted into the circumference of the fixed head portion (3342) and seated on the spring fixed head (3344) to generate elastic force.

[0083] The fixed protrusions (3346) may be inserted at regular intervals on the lower surface of the fixed head portion (3342) to fix the fixed head portion (3342) to the first belt pulley (332).

[0084] Additionally, the fixed projection (3346) may include an upper projection (360) and a lower projection (370).

[0085] The upper projection (360) may be provided to be inserted into the lower surface of the fixed head portion (3342).

[0086] Additionally, the upper projection (360) may include an upper support shaft (361), an upper projection head (362), an upper support member (363), an upper projection spring (364), and an upper connecting member (365).

[0087] The upper support shaft (361) can be provided in an 'I' shape.

[0088] The upper protrusion head (362) may be provided in a 'Y' shape to be inserted into the circumference of the upper support shaft (361) and to secure the upper protrusion (360) from the fixed head.

[0089] The upper support member (363) may be provided to be inserted into the upper circumference of the upper support shaft (361) to support the upper projection head (362).

[0090] The upper protrusion spring (364) may be inserted into the circumference of the upper support shaft (361) and positioned at the lower part of the upper protrusion head (362) to generate elastic force.

[0091] The upper connecting member (365) may be provided to be inserted into the lower circumference of the upper support shaft (361) to support the upper protruding spring (364).

[0092] The lower protrusion (370) may be inserted into the upper surface of the first belt pulley (332) and connected and fixed to the upper protrusion (360).

[0093] Additionally, the lower projection (370) may include a lower support shaft (371), a lower connecting member (372), a lower projection spring (373), a lower projection head (374), and a lower support member (375).

[0094] The lower support shaft (371) can be provided in an 'I' shape.

[0095] The lower connecting member (372) may be inserted into the upper circumference of the lower support shaft (371) and connected integrally with the upper connecting member (365).

[0096] The lower protrusion spring (373) may be inserted into the circumference of the lower support shaft (371) and provided to be elastically supported by the lower connecting member (372).

[0097] The lower projection head (374) may be provided in a 'Y' shape to be inserted into the circumference of the lower support shaft (371) and to secure the lower projection (370) from the first belt pulley (332).

[0098] The lower support member (375) may be provided to be inserted into the lower circumference of the lower support shaft (371) to support the lower projection head (374).

[0099] The shaft fixing part (335) may be built inside the second belt pulley (333) and inserted into the circumference of the pulley rotation shaft (331) to fix the pulley rotation shaft (331).

[0100] A pulley spring (336) may be inserted into the circumference of the shaft fixing part (335) to mitigate the impact generated when guiding the buckle part (313).

[0101] The buckle belt (340) is installed to rotate around a guide pulley portion (330) at regular intervals, and may be provided with guide projections (340a) formed at regular intervals to guide the belt to be fastened to the buckle groove (313a) on the upper surface of the buckle portion (313).

[0102] The drive pulley (350) may be installed to engage with each of the guide pulley sections (330) to drive the guide pulley sections (330) in rotation.

[0103] The second fixing part (320) may be formed integrally in a 'C' shape at the other end of the first fixing part (310), and may be provided with a projection groove (320a) formed at regular intervals on one side to be connected to a fastening projection (311) and a fastening member (312).

[0104] The assembly relationship and the effects of the embodiment according to the above configurations are described in detail as follows.

[0105] In the safety fixing unit (100), the unit adjustment part (200) is installed upward from the rear end of the boarding part (50).

[0106] A frame lifting rail (230) is inserted along the length direction based on the first adjustment frame (220) assembled upward at the rear end of the boarding section (50).

[0107] At this time, a frame finishing plate (260) is installed at the uppermost part of the frame lifting rail (230), and a frame support plate (210) is installed at the lowermost part.

[0108] At this time, the frame support plate (210) is installed on the upper surface of the rear end of the boarding section (50).

[0109] A second adjustment frame (250) is inserted so as to be slidably moved along the frame lifting rail (230).

[0110] The lifting guide section (240) is installed toward the frame support plate (210) from the second adjustment frame (250) while being spaced apart from the frame lifting rail (230) at a certain distance.

[0111] The control unit (270) is installed on one side of the upper part of the first control frame (220).

[0112] The safety fixing part (300) is installed facing the front of the unit adjustment part (200), particularly the second adjustment frame (250).

[0113] In the safety fixing part (300), a second fixing part (320) is extended and formed at the end of the first fixing part (310) which is shaped like a 'C', and a fastening projection (311) and a fastening member (312) are each fastened and fixed to the projection groove (320a) to form a belt shape.

[0114] At this time, the buckle part (313) is connected to the buckle groove (313a), and the buckle part (313) has the following shape built into it.

[0115] Guide pulleys (330) are rotatably installed at regular intervals inside the buckle portion (313).

[0116] A buckle belt (340) is assembled to wrap around guide pulley sections (330) at regular intervals.

[0117] At this time, guide protrusions (340a) formed at regular intervals on the upper surface of the buckle belt (340) protrude toward the upper surface of the buckle part (313) to guide the buckle part (313) into the buckle groove (313a).

[0118] A drive pulley (350) is assembled to rotate in engagement with the guide pulley section (330).

[0119] In the guide pulley section (330), the pulley rotation shaft (331) is installed to rotate in a straight line inside the buckle section (313).

[0120] The first belt pulley (332) and the second belt pulley (333) are inserted in sequence inwardly at both ends of the pulley rotation shaft (331).

[0121] At this time, the first belt pulley (332) and the second belt pulley (333) are connected to each other by a connecting projection (334a) assembled on one side of the second belt pulley (333).

[0122] In the connecting projection (334a), it is formed to protrude from the pulley connecting portion (334) installed on one side of the second belt pulley (333).

[0123] The connecting projection (334a) has a head fixing member (3343) at the upper part inside and a spring fixing head (3344) at the lower part, based on the 'ㅁ'-shaped projection body (3341), and a projection spring (3345) is connected from the spring fixing head toward the head fixing member (3343).

[0124] The fixed head portion (3342) in the shape of an 'O' is inserted toward the head fixing member in the above shape.

[0125] At this time, fixed protrusions (3346) are inserted at regular intervals on the lower surface of the fixed head part (3342).

[0126] In the fixed projection (3346), the upper projection (360) inserted into the lower surface of the fixed head (3342) and the lower projection (370) connected to the upper projection (360) and inserted into the upper surface of the first belt pulley (332) are assembled.

[0127] In the upper protrusion (360), the upper connecting member (365), upper protrusion spring (364), upper protrusion head (362), and upper support member (363) are inserted in order from the bottom with respect to the upper support shaft (361) which has an 'ㅣㅣ' shape.

[0128] Meanwhile, in the lower protrusion (370), the lower connecting member (372), lower protrusion spring (373), lower protrusion head (374), and lower support member (375) are inserted in order from the top with respect to the lower support shaft (371) which has an 'ㅣㅣ' shape.

[0129] The assembled upper protrusion (360) and lower protrusion (370) are assembled as shown in the drawing.

[0130] Inside the second belt pulley (333), a shaft fixing part (335) with a pulley spring (336) inserted around it is inserted along the circumference of the pulley rotation shaft (331).

[0131] In one embodiment, the safety fixing unit (100) can wrap around the waist of the occupant to prevent detachment from the boarding part (50) when the occupant boards.

[0132] In one embodiment, the height of the safety fixing part (300) in the unit adjustment part (200) can be adjusted by the control of the adjustment control part (270).

[0133] In one embodiment, the second adjustment frame (250) can move up and down along the first adjustment frame (220) to adjust the height of the safety fixing part (300).

[0134] In one embodiment, the lifting guide part (240) can control the lifting speed while moving up and down along the frame lifting rail (230) for the lifting and lowering of the second adjustment frame (250).

[0135] In one embodiment, the frame end plate (260) can prevent the second adjustment frame (250) from coming off.

[0136] In one embodiment, the safety fixing part (300) can wrap around the waist of the occupant and fix the occupant to the occupant part (50).

[0137] In one embodiment, the buckle portion (313) of the first fixing portion (310) can be fastened to the buckle groove (313a) to wrap around the waist of the occupant.

[0138] In one embodiment, the fastening projection (311) and the fastening member (312) are each fastened to the projection groove (320a), so that the fastening member (312) can fix the second fixing part (320).

[0139] In one embodiment, when the buckle portion (313) is fastened, the guide pulley portion (330) rotates by the rotation of the drive pulley (350), and as the buckle belt (340) rotates, the guide projection (340a) can guide the buckle portion (313) into the buckle groove (313a).

[0140] In one embodiment, when the guide pulley portion (330) rotates, the connecting projection portion (334a) connects the second belt pulley (333) to the first belt pulley (332), thereby preventing detachment when the first belt pulley (332) and the second belt pulley (333) rotate.

[0141] In one embodiment, the impact generated when the buckle portion (313) is fastened can be mitigated by the elastic force of the pulley spring (336) and the protrusion spring (3345) of the connecting protrusion portion (334a).

[0142] In one embodiment, to maintain the connection between the first belt pulley (332) and the second belt pulley (333), the upper protrusion (360) and the lower protrusion (370) can be fixed by moving organically through the elastic force of the upper protrusion spring (364) and the lower protrusion spring (373) of the fixed protrusion (3346).

[0143] In one embodiment, the safety fixing part (300) can secure the upper body of the occupant.

[0144] FIGS. 9 to 11 illustrate assembly drawings and embodiments of a loading unit of a smart electric wagon capable of IoT-based automatic driving according to the present invention.

[0145] Referring to FIGS. 9 to 11, a smart electric wagon capable of IoT-based automatic driving may include a loading unit (400) installed in the wagon body (10) to load and unload cargo.

[0146] The loading unit (400) may include a unit frame (410), a frame support (420), a vertical roller part (430), a horizontal roller (443), a frame insertion part (450), a moving part fastening part (460), a fastening part moving part (470), and a fastening part (480).

[0147] The unit frame (410) may be provided to be positioned along the longitudinal direction of the rear body frame (15).

[0148] The frame support (420) may be installed at the upper and lower ends of the unit frame (410) to support the unit frame (410) from the rear main body frame (15).

[0149] The vertical roller section (430) can be rotatably installed at regular intervals along the internal length direction of the unit frame (410).

[0150] Additionally, the vertical roller section (430) may include a vertical roller frame (431) in the shape of a 'U' and vertical rollers (432) rotatably installed on both sides of the central part of the vertical roller frame (431).

[0151] The horizontal rollers (443) may be rotatably installed at regular intervals along the internal length direction of the unit frame (410) and connected between the spaced arrangements of the vertical roller sections (430).

[0152] Additionally, the horizontal roller (443) may include a horizontal roller frame (441) arranged in a 'two' shape.

[0153] Additionally, the horizontal roller (443) may include a connecting member (442) installed at both ends of the horizontal roller frame (441) and configured to connect to one end of the vertical roller frame (431).

[0154] Additionally, the horizontal roller (443) may include a horizontal roller (443) rotatably installed in the center of the horizontal roller frame (441).

[0155] The frame insertion part (450) may be connected to vertical roller parts (430) at regular intervals and inserted toward the rear main body frame (15) to support the unit frame (410).

[0156] The movable connecting part (460) may be provided to be installed at regular intervals so as to be movable along the horizontal roller (443).

[0157] The connecting part moving part (470) can be installed to slide along one side of the unit frame (410) at a fixed interval of connecting part moving part (460).

[0158] The fastening part (480) may be installed at regular intervals on one side of the fastening part moving part (470) to load and unload cargo.

[0159] Additionally, the fastening part (480) may include a pivot shaft (481), a pivot bracket (482), a pivot housing (483), a pivot cylinder (484), a cushioning member (485), an upper frame support (486), a lower frame support (487), a support cushioning member (488), a cylinder pressing shaft (489), an upper rail frame (490), a lower frame (491), a member fixing part (492), a member moving part (493), and a fastening member (312).

[0160] The pivot shaft (481) may be provided to be installed on one side of the connecting part moving part (470).

[0161] The pivot bracket (482) may be provided to be rotatably installed at the lower part of the pivot shaft (481).

[0162] The pivot housing (483) may be provided to be rotatably installed on the upper part of the pivot shaft (481) and the pivot bracket (482).

[0163] The rotating cylinder (484) may be provided to be filled with gas for cushioning inside the rotating housing (483).

[0164] The buffer member (485) can be installed on the upper part of the rotating housing (483) to act as a buffer.

[0165] The upper frame support (486) may be installed on the upper part of the buffer member (485) and provided to be supported by the fastening member moving part (470).

[0166] The lower frame support (487) may be installed at the bottom of the pivot bracket (482) and provided to be supported by the fastening part moving part (470).

[0167] The support buffer (488) may be connected to a buffer lifting groove (487a) formed on one side of the lower frame support (487) so as to be movable, and may be installed on one side of the connection moving part (470) to mitigate shock when the connection part (480) is driven.

[0168] The cylinder pressing shaft (489) can be inserted from the upper frame support (486) toward the rotating cylinder (484) to enable piston movement.

[0169] The upper rail frame (490) can be provided to be installed in a straight line direction on the upper frame support (486).

[0170] The lower frame (491) can be provided to be installed in a straight line direction at the lower frame support (487).

[0171] The member fixing part (492) may be provided in a 'U' shape installed in the center of the lower frame (491).

[0172] Additionally, the member fixing part (492) may include a seating part (495) provided at both upper ends to be seated when the fastening member (312) is raised or lowered.

[0173] The seating portion (495) may include a seating portion plate (4951), a frame pivot portion (4952), a body support bracket (4953), a spring body (4954), a seating spring (4955), a body pivot portion (4956), a roller frame (4957), and a seating roller (4958).

[0174] The mounting plate (4951) may be provided to be installed at both upper ends of the member fixing part (492).

[0175] The frame pivot portion (4952) may be provided to be installed upward on one side of the upper surface of the mounting plate (4951).

[0176] The body support bracket (4953) may be provided to be installed upward on the other side of the upper surface of the seating plate (4951).

[0177] The spring body (4954) may be provided in an 'I' shape that is rotatably installed on the body support bracket (4953).

[0178] A set spring (4955) may be provided to be inserted into the circumference of a spring body (4954) to generate elastic force.

[0179] The body pivot part (4956) can be inserted to penetrate the spring body (4954).

[0180] The roller frame (4957) may be provided in a '「' shape on the frame pivot part (4952), with its lower part rotatably connected to the front of the body pivot part (4956), and its central part rotatably connected to the frame pivot part (4952).

[0181] A seating roller (4958) may be rotatably connected to the upper part of the roller frame (4957) to provide rotational support for seating a load.

[0182] The member moving part (493) may be provided to be installed so as to be slidably movable along the length direction of the upper rail frame (490).

[0183] Additionally, the member moving part (493) may include a moving part wheel (4931), a wheel frame (4932), a moving part body (4933), a member lifting part (4934), and a control part (4935).

[0184] The movable wheels (4931) can be provided at regular intervals so as to be slidable along the upper rail frame (490).

[0185] The wheel frame (4932) can be provided to be installed upward on each of the moving wheels (4931).

[0186] The movable body (4933) is installed on the upper part of the wheel frame (4932) and may be configured to allow the fastening member (312) to be raised and lowered.

[0187] The member lifting part (4934) can be installed to be built inside the movable body (4933) to raise and lower the fastening member (312).

[0188] A control unit (4935) may be installed on the upper part of the movable body (4933) to control the loading unit (400).

[0189] The fastening member (312) can be moved up and down from the member moving part (493) toward the member fixing part (492) to fasten and fix the load.

[0190] The assembly relationship and the effects of the embodiment according to the above configurations are described in detail as follows.

[0191] In the loading unit (400), it is assembled along the longitudinal direction of the rear main body frame (15).

[0192] Based on the 'ㅣㅣ' shaped unit frame (410), multiple vertical roller sections (430) and horizontal rollers (443) are installed alternately between the frames.

[0193] In the vertical roller section (430), vertical rollers (432) are attached to both sides of the central section based on the vertical roller frame (431) in the shape of a 'U'.

[0194] In the horizontal roller (443), the horizontal roller (443) is rotatably connected to the center based on the horizontal roller frame (441) which has a 'two' shape, and connecting members (442) are connected to both ends.

[0195] In the above configuration, one side of the vertical roller frame (431) of the vertical roller part (430) and the connecting member (442) of the horizontal roller (443) are fastened together, and the vertical roller part (430), horizontal roller (443), and vertical roller part (430) are assembled in the same order.

[0196] At this time, the frame insertion part (450) is inserted into the rear main body frame (15) in a shape that is fastened to the lower part of the vertical roller frame (431) of the vertical roller part (430).

[0197] Meanwhile, on one side of the connecting part moving part (470), the connecting part (480) and the connecting part moving part (460) are connected at regular intervals as shown in the drawing, so that the connecting part moving part (460) can move along the horizontal roller (443) of the horizontal roller (443) in the above shape.

[0198] The fastening part (480) is fastened to the other side of the fastening part moving part (470) at regular intervals.

[0199] In the connection part (480), the rotation housing (483) is connected so as to be rotatable based on the rotation bracket (482), and a rotation shaft (481) is connected so that the rotation bracket (482) and the rotation housing (483) are connected in the shape, and the rotation shaft (481) is connected to the other side of the connection part moving part (470).

[0200] A cushioning member (485) is fastened to the upper part of the pivot housing (483), and an upper frame support member (486) is assembled to the upper part of the cushioning member (485).

[0201] Meanwhile, the cylinder pressing shaft (489) is inserted into the interior of the rotating cylinder (484) in a 'T' shape, and the upper part of the cylinder pressing shaft (489) and the cushioning member (485) support the upper frame support (486).

[0202] A lower frame support (487) is assembled to the lower part of the pivot bracket (482), and the lower frame support (487) is connected to the other side of the connecting part moving part (470) so as to be movable in the buffer lifting groove (487a).

[0203] Meanwhile, a member moving part (493) is slidably connected to the upper rail frame (490), so that the upper rail frame (490) is assembled in a straight line toward the front of the upper frame support part (486).

[0204] The lower frame (491) is assembled in a straight line toward the front of the lower frame support (487).

[0205] The member fixing part (492) is assembled in a 'U' shape in the center of the lower frame (491).

[0206] Meanwhile, in the member moving part (493), a control part (4935) is installed on the upper side based on the moving part body (4933), a member lifting part (4934) is installed on the inner lower surface of the moving part body (4933), and a shape in which a wheel frame (4932) and a moving part wheel (4931) are assembled at regular intervals is installed on the rear surface of the moving part body (4933).

[0207] The movable wheel (4931) of the above shape is slidably connected to the upper rail frame (490).

[0208] A fastening member (312) is assembled so as to be able to move up and down from the member lifting part (4934) toward the member fixing part (492).

[0209] Meanwhile, in the member fixing part (492), it is installed at both upper ends of the member fixing part (492).

[0210] A frame pivot part (4952) is installed in an 'I' shape on one side of the upper surface based on the mounting plate (4951), and the central part of the roller frame (4957) is rotatably connected to the frame pivot part (4952) in a '┌' shape, and a mounting roller (4958) is rotatably connected to the upper part of the roller frame (4957).

[0211] A body support bracket (4953) is installed in an 'T' shape on the other side of the upper surface relative to the mounting plate (4951), a body pivot part (4956) penetrates the spring body (4954), and a mounting spring (4955) is inserted into the circumference of the body pivot part (4956) in an 'I' shape and is rotatably connected to the body support bracket (4953).

[0212] Additionally, the body pivot part (4956) is rotatably connected to the lower part of the roller frame (4957).

[0213] In particular, the seating portion (495) is installed at both upper ends of the member fixing portion (492) in a position facing each other.

[0214] In one embodiment, when loading a load, the loading unit (400) can have the end portion of the load fixed by the fastening portion (480) while the fastening portion moving portion (470) descends along the horizontal roller (443) of the unit frame (410) to settle.

[0215] In one embodiment, when unloading a load, the loading unit (400) can release the load to which the fastening part moving part (470) is fixed by rising along the horizontal roller (443) of the unit frame (410).

[0216] In one embodiment, the frame insertion part (450) can support a shape in which the frame support part (420) and the unit frame (410) are assembled on the rear main body frame (15).

[0217] In one embodiment, a horizontal roller (443) can move the assembled shape of the moving part connecting part (460), the connecting part moving part (470), and the connecting part (480) up and down.

[0218] In one embodiment, the fastening part moving part (470) can move the fastening part (480) up and down by means of the engaged vertical roller part (430).

[0219] In one embodiment, when fixing a load, the fastening part (480) can fix the load by rotating the rotating part housing (483) and the rotating part bracket (482) by means of the rotating shaft (481).

[0220] In one embodiment, the impact generated when securing the load can be mitigated by the piston movement toward the rotating cylinder (484) of the cylinder pressing shaft (489) and the cushioning member (485).

[0221] In one embodiment, the support buffer (488) moves up and down along the buffer lifting groove (487a), allowing for fine position adjustment of the fastening part (480) for securing the load.

[0222] In one embodiment, when fixing a load, the member moving part (493) moves along the upper rail frame (490) so that the fastening member (494) is lowered by the member lifting part (4934) to fix the load.

[0223] At this time, when unloading the cargo, the operation should be reversed from the above embodiments, so it is omitted to avoid repetitive explanation.

[0224] Although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention. Explanation of the symbols

[0225] Wagon body (10) Horizontal frame (11) vertical frame (12) Support frame (13) front main body frame (14) Rear main body frame (15) central hinge part (16) Bent frame (17) Bent frame support (18) Wagon wheels (20) Handle part (30) Handle part (31) Brake part (32) fingerprint recognition lock (40) Boarding section (50) Safety fixing unit (100) Unit control section (200) Frame support plate (210) 1st adjustment frame (220) Frame lifting rail (230) Lifting guide section (240) 2nd adjustment frame (250) Frame finishing plate (260) Control unit (270) Safety fixing part (300) 1st fixed part (310) fastening projection (311) Fastening member (312) Buckle part (313) Buckle home (313a) 2nd fixed part (320) Protrusion groove (320a) Guide pulley (330) pulley rotation shaft (331) 1st belt pulley (332) 2nd belt pulley (333) Pulley connection (334) Connecting projection (334a) Protrusion body (3341) Fixed head part (3342) Head part fixing member (3343) Spring fixed head (3344) Protrusion spring (3345) Fixed projection (3346) shaft fixing part (335) pulley spring (336) Buckle belt (340) Guide projection (340a) drive pulley (350) Upper protrusion (360) upper support shaft (361) Upper protrusion head (362) Upper support member (363) Upper protrusion spring (364) Upper connecting member (365) Lower projection (370) lower support shaft (371) Lower connecting member (372) Lower protrusion spring (373) Lower protrusion head (374) Lower support member (375) Loading unit (400) Unit frame (410) Frame support (420) vertical roller section (430) vertical roller frame (431) vertical roller (432) Horizontal roller section (440) Horizontal roller frame (441) Connecting member (442) horizontal roller (443) Frame insertion part (450) movable connecting part (460) Connecting part moving part (470) Connecting part (480) Rotation axis (481) rotating bracket (482) Housing (483) rotating cylinder (484) Buffer member (485) Upper frame support (486) Lower frame support (487) Buffer section lifting platform (487a) Support buffer (488) cylinder pressing shaft (489) upper rail frame (490) lower frame (491) Member fixing part (492) Partial moving part (493) Moving part wheel (4931) Wheel frame (4932) Moving body (4933) Member lifting unit (4934) Control unit (4935) Fastening member (494) Settling part (495) Seating plate (4951) Frame pivot part (4952) Body support bracket (4953) Spring body (4954) Set-up spring (4955) Body pivot part (4956) Roller frame (4957) Settling roller (4958)

Claims

Claim 1 A smart electric wagon capable of IoT-based automatic driving, comprising: a wagon body forming a passenger and cargo space; wagon wheels rotatably installed at each lower corner of the wagon body to move the wagon body; a handle portion vertically fastened to the rear end of the wagon body; a fingerprint recognition lock portion installed on the handle portion to recognize a passenger's fingerprint and control the wagon power ON / OFF; and a passenger portion installed toward the rear of the wagon body to enable passenger boarding. The handle portion includes a handle portion for adjusting the angle of each wagon wheel and a brake portion for controlling the rotation of each wagon wheel. The wagon body comprises: a horizontal frame installed in a straight line so that the wagon wheels can rotate; a vertical frame installed in an L-shape on the horizontal frame; a plurality of support frames installed at regular intervals in a straight line on the shape where the horizontal frame and the vertical frame are installed; a front body frame installed upward from both ends of the horizontal frame at the front; and a rear body frame installed upward from both ends of the horizontal frame at the rear. A main body frame; a central hinge portion installed in the center of the vertical frame and configured to allow the vertical frame to fold by hinge rotation; a folded frame formed by bending to connect the front main body frame and the rear main body frame; a folded frame support portion extending from the folded frame toward the front main body frame and the rear main body frame and configured to fold by hinge rotation of the central hinge portion; and further comprising a safety fixing unit installed in the boarding part and configured to fix a passenger; wherein the safety fixing unit comprises a unit adjustment portion installed upward from the rear end of the boarding part and configured to be adjustable in length; and a safety fixing portion installed forward from the unit adjustment portion and configured in a belt shape to fix the upper body; and wherein the unit adjustment portion comprises a frame support plate installed on the upper surface of the rear end of the boarding part.A first adjustment frame installed upward at the rear end of the boarding part; a frame lifting rail installed along the internal length direction of the first adjustment frame; a lifting guide part installed at a certain distance from the frame lifting rail inside the first adjustment frame; a second adjustment frame installed to be able to move up and down toward the interior of the first adjustment frame along the frame lifting rail, and configured to be guided by the lifting guide part when moving up and down; a frame end plate installed at the uppermost end of the frame lifting rail to prevent the second adjustment frame from detaching; and an adjustment control part installed on one side of the upper part of the first adjustment frame to control the second adjustment frame to move up and down to adjust the height of the unit adjustment part; wherein the safety fixing part comprises a first fixing part having a 'C' shape, wherein fastening protrusions and fastening members are formed protruding at regular intervals on one side, a buckle part is formed protruding at one end, and a '⊂'-shaped buckle groove formed at the other end for fastening to the buckle part; and the first fixing part A second fixing part is integrally formed in a 'C' shape at the other end and is provided with protrusion grooves formed at regular intervals on one side for engaging with the fastening projection and the fastening member; and the buckle part includes: a guide pulley part rotatably installed at regular intervals inside; a buckle belt installed to rotate around the guide pulley part at regular intervals, with guide projections formed protruding at regular intervals on the upper surface of the buckle part to guide engagement with the buckle groove; and a driving pulley installed to engage with each of the guide pulley parts to drive the rotation of the guide pulley part; and the guide pulley part includes: a pulley rotation shaft rotatably installed inside the buckle part; and a first belt pulley installed at both ends of the pulley rotation shaft to rotate along with the rotation of the pulley rotation shaft to rotate the buckle belt.A second belt pulley installed to be inserted into the circumference of the pulley rotation shaft and positioned inwardly facing each of the first belt pulleys to rotate along with the rotation of the pulley rotation shaft; a pulley connection part installed to face the first belt pulley from one side of the second belt pulley; a U-shaped connecting projection part protruding from the pulley connection part and installed to connect from the second belt pulley toward the first belt pulley; a shaft fixing part embedded inside the second belt pulley and inserted into the circumference of the pulley rotation shaft to fix the pulley rotation shaft; and a pulley spring inserted into the circumference of the shaft fixing part to mitigate the impact generated when guiding the buckle part; wherein the connecting projection part comprises: a projection body having a square shape and a hollow interior; a fixing head part inserted inwardly from the lower part of the projection body in an O-shape and provided to be coupled with the first belt pulley; a head part fixing member installed to fix the fixing head part at the upper inner part of the projection body; and the fixing It comprises: a spring fixing head inserted into the circumference of the head portion and embedded inside the body of the projection portion; a projection spring inserted into the circumference of the fixed head portion and seated on the spring fixing head to generate elastic force; and a fixing projection portion inserted to protrude at regular intervals on the lower surface of the fixed head portion and configured to fix the fixed head portion to the first belt pulley; wherein the fixing projection portion comprises: an upper projection portion configured to be inserted into the lower surface of the fixed head portion; and a lower projection portion configured to be inserted into the upper surface of the first belt pulley and connected and fixed to the upper projection portion; wherein the upper projection portion comprises: an upper support shaft in the shape of an 'ㅣㅣ'; an upper projection head configured in the shape of a 'Y' to be inserted into the circumference of the upper support shaft and to fix the upper projection portion from the fixed head portion; and an upper support member configured to be inserted into the upper circumference of the upper support shaft and to support the upper projection head.It includes: an upper projection spring inserted into the circumference of the upper support shaft and positioned at the lower part of the upper projection head to generate elastic force; and an upper connecting member inserted into the lower circumference of the upper support shaft to support the upper projection spring; wherein the lower projection comprises: a lower support shaft in the shape of 'ㅣㅣ'; a lower connecting member inserted into the upper circumference of the lower support shaft and configured to be integrally connected with the upper connecting member; a lower projection spring inserted into the circumference of the lower support shaft and configured to be elastically supported by the lower connecting member; a lower projection head in the shape of 'Y' inserted into the circumference of the lower support shaft to fix the lower projection from the first belt pulley; and a lower support member inserted into the lower circumference of the lower support shaft to support the lower projection head; and wherein the safety fixing unit operates to prevent detachment from the boarding part when a passenger boards, adjusts the height of the safety fixing part in the unit adjustment part, and the safety fixing part [fixes] the passenger's upper body A smart electric wagon capable of IoT-based autonomous driving, further including fastening and fixing features. Claim 2 delete Claim 3 delete

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