Electric mobile device
By installing a vibration device on the electric wheelchair to alert the user to obstacles, the problem of open-loop control systems being unable to cope with unexpected situations is solved, thus improving the safety and convenience of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ROBOSPECTRA TECHNOLOGY CO LTD
- Filing Date
- 2024-12-03
- Publication Date
- 2026-05-15
AI Technical Summary
Existing open-loop control systems for electric wheelchairs cannot handle unexpected situations, which may cause users to collide with obstacles while driving, affecting their safety.
By installing vibration devices on electric mobile devices, users can be alerted to obstacles by vibration. Different vibration intensities and frequencies can be used to indicate the location of obstacles, thereby improving users' ability to respond.
This enhances the safety and convenience of using electric wheelchairs, enabling users to take timely measures to bypass obstacles and improving safety and convenience during travel.
Smart Images
Figure CN224235674U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and in particular to an electric mobile device. Background Technology
[0002] Currently, with the trend of population aging and social development, our society is paying more and more attention to the travel needs of the elderly and people with disabilities.
[0003] For most elderly people, manual wheelchairs are very difficult to operate. Most mainstream electric wheelchairs on the market only have open-loop control systems (open-loop control systems are unidirectional control methods without feedback mechanisms). In existing open-loop control systems for electric wheelchairs, users input driving commands via a joystick or touchscreen, which directly control the wheelchair's motor to achieve forward, backward, and steering movements.
[0004] The main problem with this system is that it cannot handle unexpected situations. For example, if the user fails to notice an obstacle ahead in time while driving, the electric wheelchair may crash into it, compromising the user's safety. Utility Model Content
[0005] This application provides an electric mobile device that can alert users to obstacles by vibration, thereby improving safety and convenience of use.
[0006] This application provides an electric mobile device, including:
[0007] Main body;
[0008] An operating device is disposed in the main body;
[0009] A vibration device is provided on the main body, and the vibration device is configured to generate vibration to alert the user to the presence of an obstacle.
[0010] In this configuration, on a projection plane perpendicular to the height direction of the electric mobile device, the projection of the main body is staggered from the projections of the operating device and the vibration device along the center line of the first direction, and the first direction, the travel direction of the electric mobile device, and the height direction are perpendicular to each other.
[0011] The electric mobile device provided in this application embodiment can issue a reminder by vibration when it encounters an obstacle during user use, enabling the user to take timely countermeasures, such as turning to bypass the obstacle, thereby improving the safety and convenience of use. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of the wheelchair according to an embodiment of this application.
[0014] Figure 2 This is a first schematic diagram of the main body of the wheelchair in an embodiment of this application, along the center line of the projection plane.
[0015] Figure 3 This is a second schematic diagram of the main body of the wheelchair in an embodiment of this application, showing the center line of the projection plane.
[0016] Figure 4 This is a third schematic diagram of the main body of the wheelchair in an embodiment of this application, showing the center line of the projection plane.
[0017] Figure 5 This is a schematic diagram of a vibration device for a wheelchair installed on an operating device, according to an embodiment of this application.
[0018] Figure 6 Another schematic diagram of the vibration device of the wheelchair in an embodiment of this application being installed on the operating device.
[0019] Figure 7 This is a schematic diagram of a vibration device installed in the seat of a wheelchair according to an embodiment of this application.
[0020] Figure 8 Another schematic diagram of a vibration device for a wheelchair, as described in this application, is installed in the seat.
[0021] Figure 9 This is a schematic diagram of a vibration device installed on the backrest of a wheelchair according to an embodiment of this application.
[0022] Figure 10 Another schematic diagram of a vibration device for a wheelchair, as described in this application, is mounted on the backrest. Detailed Implementation
[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0024] This application provides an electrically powered mobile device. The electrically powered mobile device can be, for example, a wheelchair, stroller, bicycle, electric vehicle, motorcycle, scooter, or other similar mobility device. The following uses a wheelchair as an example to describe the electrically powered mobile device of this application embodiment in detail. During user operation, the electrically powered mobile device of this application embodiment can vibrate to alert the user when encountering obstacles, enabling the user to take timely countermeasures, such as turning to bypass the obstacle, thereby improving safety and convenience of use.
[0025] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a wheelchair 100 according to an embodiment of this application. The wheelchair 100 includes a main body 10, an operating device 20, and a vibration device (see [reference]). Figure 5 , Figures 7 to 10 The vibration device can be a vibration device 30). Both the operating device 20 and the vibration device are located in the main body 10.
[0026] The main body 10 forms the main structure of the wheelchair 100. In practical applications, the main body 10 may include wheels, a chassis, footrests, support arms, a seat, a backrest, armrests, etc. The armrests may include, for example, a left armrest 11 and a right armrest 12; the seat may be, for example, a seat 13; the backrest may be, for example, a backrest 14; and the footrests may be, for example, footrests 15. The chassis is connected to the wheels, footrests, and support arms, with the support arms connected above the chassis. The seat is mounted on the support arms, the backrest is located at the rear of the seat (rear of the wheelchair 100 in the direction of travel), and the armrests are located on both sides of the seat. In some embodiments, a seat cushion may also be provided on the seat, and a headrest may also be provided on the backrest.
[0027] The operating device 20 is for user operation to control the wheelchair 100. In some embodiments, the operating device 20 may be a joystick, which the user can operate to control the movement of the wheelchair 100. In some embodiments, the operating device 20 may be a panel or button-type operating device, which the user can operate to control the movement of the wheelchair 100, and / or to adjust wheelchair parameters (e.g., movement speed, responsiveness to user operations, seat height, backrest angle, etc.), and / or to implement entertainment functions (e.g., playing music, listening to the radio, etc.).
[0028] The vibration device is configured to generate vibrations to alert the user to obstacles. For example, while the wheelchair is in motion, if an obstacle is detected ahead of the path, the vibration device can generate vibrations to alert the user, allowing the user to take timely action, such as turning to avoid the obstacle. In practical applications, sensors such as cameras, photoelectric sensors, and lidar can be installed on the wheelchair 100 to detect obstacles. Understandably, the vibration device can take the form of a vibration motor, etc.
[0029] In this embodiment, on a projection plane (i.e., a horizontal projection plane) perpendicular to the height direction of the wheelchair 100, the projection of the main body 10 is arranged offset from the projections of the operating device 20 and the vibration device along a center line in a first direction. That is, the center line is offset from both the projection of the operating device 20 and the projection of the vibration device. Alternatively, it can be understood that the center line does not pass through the projection of the operating device 20 and the projection of the vibration device. The first direction, the wheelchair's travel direction, and the wheelchair's height direction are perpendicular to each other.
[0030] Understandably, since the projection of the main body 10 is arranged offset from the projection of the operating device 20 and the projection of the vibration device along the center line of the first direction, it is possible to remind the user of the location of the obstacle by means of the vibration device, such as whether the obstacle is on the left or right side of the direction of travel.
[0031] For example, in some embodiments, the vibration device may have different vibration intensities. Vibration at one intensity indicates that the obstacle is on the same side of the vibration device (distinguished by the center line), while vibration at another intensity indicates that the obstacle is on a different side of the vibration device. As another example, in some embodiments, the vibration device may have different vibration frequencies. Vibration at one frequency indicates that the obstacle is on the same side of the vibration device (distinguished by the center line), while vibration at another frequency indicates that the obstacle is on a different side of the vibration device.
[0032] In this embodiment of the application, depending on the different structural layout of the main body 10, the projection of the main body 10 along the center line of the first direction has a variety of different cases, which will be described in detail below.
[0033] In some embodiments, reference Figure 2 , Figure 2 This is a first schematic diagram of the main body 10 of the wheelchair in an embodiment of this application, along the center line of the projection plane. Figure 2In the diagram, direction V represents the direction of travel of wheelchair 100, direction Z represents the height direction of wheelchair 100, and direction X represents the first direction. Directions V, Z, and X are perpendicular to each other.
[0034] The main body 10 includes two front wheels, such as a left front wheel 101 and a right front wheel 102. In this case, the number of rear wheels in this embodiment is not limited; the number of rear wheels can be, for example, one, two, or more. The line connecting the axle of the left front wheel 101 and the axle of the right front wheel 102 is L1. The center line of the projection of the main body 10 onto the projection plane (the projection plane perpendicular to the height direction of the wheelchair, the same applies below, and will not be repeated later) along the first direction X is L3, and the center line L3 passes through the midpoint of the connecting line L1. It can be understood that the center line L3 divides the projection of the main body 10 onto the projection plane into two parts along the direction X, namely, left and right parts.
[0035] In some embodiments, reference Figure 3 , Figure 3 This is a second schematic diagram of the main body 10 of the wheelchair in an embodiment of this application, along the center line of the projection plane. Figure 3 In the diagram, direction V represents the direction of travel of wheelchair 100, direction Z represents the height direction of wheelchair 100, and direction X represents the first direction. Directions V, Z, and X are perpendicular to each other.
[0036] The main body 10 includes two rear wheels, such as a left rear wheel 103 and a right rear wheel 104. In this case, the number of front wheels in this embodiment is not limited; for example, there can be one, two, or more front wheels. The line connecting the axle of the left rear wheel 103 and the axle of the right rear wheel 104 is L2. The center line of the projection of the main body 10 onto the projection plane along the first direction X is L3, and the center line L3 passes through the midpoint of the connecting line L2. It can be understood that the center line L3 divides the projection of the main body 10 onto the projection plane into two parts along the direction X, namely, left and right parts.
[0037] In some embodiments, reference Figure 4 , Figure 4 This is a third schematic diagram of the main body 10 of the wheelchair in an embodiment of this application, along the center line of the projection plane. Figure 4 In the diagram, direction V represents the direction of travel of wheelchair 100, direction Z represents the height direction of wheelchair 100, and direction X represents the first direction. Directions V, Z, and X are perpendicular to each other.
[0038] The main body 10 includes two front wheels and two rear wheels, such as a left front wheel 101, a right front wheel 102, a left rear wheel 103, and a right rear wheel 104. The line connecting the axle centers of the left front wheel 101 and the right front wheel 102 is L1, and the line connecting the axle centers of the left rear wheel 103 and the right rear wheel 104 is L2. The center line of the projection of the main body 10 onto the projection plane along the first direction X is L3, and the center line L3 passes through the midpoints of the connecting lines L1 and L2. It can be understood that the center line L3 divides the projection of the main body 10 onto the projection plane into two parts along the direction X, namely left and right parts.
[0039] In some embodiments, the main body 10 includes a left armrest and a right armrest, such as a left armrest 11 and a right armrest 12. On a projection plane perpendicular to the height direction of the wheelchair 100, the projection of the left armrest 11 is located on one side of the aforementioned center line (e.g., the left side), and the projection of the right armrest is located on the other side of the aforementioned center line (e.g., the right side). The operating device 20 is disposed on either the left armrest 11 or the right armrest 12.
[0040] In some embodiments, there are multiple vibration devices. At least one vibration device is disposed on the left handrail 11, and at least another vibration device is disposed on the right handrail 12. It is understood that by providing at least one vibration device on both the left handrail 11 and the right handrail 12, different alerts can be generated by vibration devices at different locations.
[0041] For example, when an obstacle is encountered on the left side of the direction of travel, vibration can be generated by the vibration device 30 installed on the right armrest 12, so that when the user feels the vibration on the right side, he can control the wheelchair 100 to avoid the obstacle on the right side; when an obstacle is encountered on the right side of the direction of travel, vibration can be generated by the vibration device 30 installed on the left armrest 11, so that when the user feels the vibration on the left side, he can control the wheelchair 100 to avoid the obstacle on the left side.
[0042] Understandably, in some other embodiments, when an obstacle is encountered on the left side of the travel direction, vibration can be generated by the vibration device 30 provided on the left handrail 11 to remind that the obstacle is on the left; when an obstacle is encountered on the right side of the travel direction, vibration can be generated by the vibration device 30 provided on the right handrail 12 to remind that the obstacle is on the right.
[0043] In some embodiments, reference Figure 5 , Figure 5This is a schematic diagram illustrating the vibration device of a wheelchair as described in this application, mounted on an operating device. The operating device 20 is mounted on the armrest of the main body 10, for example, on the right armrest 12. In practical applications, the right armrest 12 may have a mounting portion, and the operating device 20 may be mounted within the mounting portion of the right armrest 12. The mounting portion may be in the form of a groove, a through hole, or the like. In some other embodiments, the operating device 20 may also be mounted on the left armrest 11, for example, by having a mounting portion on the left armrest 11, and the operating device 20 mounted within the mounting portion of the left armrest 11.
[0044] The operating device 20 is equipped with a vibration device 30. For example, in some embodiments, the operating device 20 can be a joystick, and at least one vibration device 30 is disposed at the bottom of the joystick. Therefore, the user can easily perceive the vibration generated by the vibration device 30 while operating the joystick.
[0045] In some embodiments, reference Figure 6 , Figure 6 This is another schematic diagram illustrating the vibration device of a wheelchair in an embodiment of this application, mounted on an operating device. The right armrest 12 has a decorative outer panel, and the vibration device 30 can be concealed within this panel to reduce contact between the vibration device 30 and the outside, thereby minimizing contact with dust or other foreign objects. It is understood that the left armrest 11 also has a decorative outer panel, and when the vibration device 30 is mounted on the left armrest 11, it can also be concealed within this panel.
[0046] In some embodiments, there are multiple vibration devices 30, such as two, three, four, or even more. Specifically, on a projection plane perpendicular to the height of the wheelchair 100, the projection of at least one vibration device 30 is located on one side of the aforementioned centerline, and the projection of at least another vibration device 30 is located on the other side of the aforementioned centerline. Alternatively, it can be understood that the projection of at least one vibration device 30 is located to the left of the aforementioned centerline (hereinafter referred to as the left-side vibration device), and the projection of at least another vibration device 30 is located to the right of the aforementioned centerline (hereinafter referred to as the right-side vibration device).
[0047] Therefore, during the movement of the wheelchair 100, vibrations can be generated by the vibration devices 30 at different positions to alert the user to the location of any obstacles encountered. For example, in some embodiments, when an obstacle is encountered on the left side of the direction of travel, vibrations can be generated by the vibration device 30 on the right side, allowing the user to control the wheelchair 100 to avoid the obstacle on the right when they perceive the vibration on the right; conversely, when an obstacle is encountered on the right side of the direction of travel, vibrations can be generated by the vibration device 30 on the left side, allowing the user to control the wheelchair 100 to avoid the obstacle on the left when they perceive the vibration on the left.
[0048] Understandably, in some other embodiments, when an obstacle is encountered on the left side of the travel direction, vibration can be generated by the left-side vibration device 30 to alert that the obstacle is on the left; when an obstacle is encountered on the right side of the travel direction, vibration can be generated by the right-side vibration device 30 to alert that the obstacle is on the right.
[0049] In some embodiments, the main body 10 includes functional components. These functional components include at least one of the following: armrests (e.g., left armrest 11 and right armrest 12, or a single armrest extending from the left side of the wheelchair to the right side), a seat (e.g., seat 13), a seat cushion, a backrest (e.g., backrest 14), a headrest, and a footrest (e.g., footrest 15). Each functional component comprises a first portion and a second portion. On a projection plane perpendicular to the height of the wheelchair 100, the projection of the first portion is located on one side of the aforementioned centerline (e.g., the left side), and the projection of the second portion is located on the other side of the aforementioned centerline (e.g., the right side). At least one vibration device 30 is disposed in the first portion, and at least another vibration device 30 is disposed in the second portion.
[0050] In some embodiments, on a projection plane perpendicular to the height direction of the wheelchair 100, the projection of the vibration device 30 disposed in the first part and the projection of the vibration device 30 disposed in the second part are symmetrical about the aforementioned center line.
[0051] In some embodiments, reference Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of the vibration device 30 of a wheelchair installed in the seat according to an embodiment of this application. Figure 8 Another schematic diagram of the vibration device 30 of the wheelchair in an embodiment of this application being installed on the seat.
[0052] The aforementioned functional component includes a seat 13. The seat 13 comprises a first portion 131 and a second portion 132. On a projection plane perpendicular to the height of the wheelchair 100, the projection of the first portion 131 of the seat is located on one side of the aforementioned centerline L3 (e.g., the left side), and the projection of the second portion 132 of the seat is located on the other side of the aforementioned centerline L3 (e.g., the right side). At least one vibration device 30 is disposed on the first portion 131 of the seat, and at least another vibration device 30 is disposed on the second portion 132 of the seat.
[0053] In practical applications, a seat may include a seat body and a seat cushion disposed on the seat body, the seat cushion improving user comfort. The vibration device 30 may be disposed on the seat body beneath the seat cushion. In some embodiments, the vibration device 30 can be covered by the seat cushion to reduce its contact with the outside environment, thereby reducing contact with dust and other foreign objects. In other embodiments, the vibration device 30 can also be covered by the structure of the seat body itself, for example, by embedding the vibration device 30 beneath the surface of the seat body, which also reduces contact with dust and other foreign objects.
[0054] In some embodiments, the vibration device 30 can also be disposed within the seat cushion, for example, by embedding the vibration device 30 beneath the surface of the seat cushion, allowing the user to perceive the vibration generated by the vibration device 30 and thus achieving a reminder function. Furthermore, disposing of the vibration device 30 within the seat cushion can also cover the vibration device 30, reducing its contact with dust and other foreign objects.
[0055] In some embodiments, reference Figure 9 and Figure 10 , Figure 9 This is a schematic diagram of the vibration device 30 of a wheelchair installed on the backrest according to an embodiment of this application. Figure 10 Another schematic diagram of the vibration device 30 of the wheelchair in an embodiment of this application being disposed on the backrest.
[0056] The aforementioned functional component includes a backrest 14. The backrest 14 comprises a first portion 141 and a second portion 142. On a projection plane perpendicular to the height of the wheelchair 100, the projection of the first portion 141 of the backrest is located on one side of the aforementioned centerline L3 (e.g., the left side), and the projection of the second portion 142 of the backrest is located on the other side of the aforementioned centerline L3 (e.g., the right side). At least one vibration device 30 is disposed on the first portion 141 of the backrest, and at least another vibration device 30 is disposed on the second portion 142 of the backrest.
[0057] In some embodiments, multiple vibration devices 30 may be mixed and arranged on different functional components. For example, functional components may include at least two of the following: armrests (e.g., left armrest 11 and right armrest 12, or a single armrest extending from the left side of the wheelchair to the right side), seats (e.g., seat 13), cushions, backrests (e.g., backrest 14), headrests, and footrests (e.g., footrests 15). At least one vibration device 30 is disposed on one of the armrests, seats, cushions, backrests, headrests, and footrests, and at least another vibration device 30 is disposed on another of the armrests, seats, cushions, backrests, headrests, and footrests. Therefore, the positions of the various vibration devices 30 can be flexibly arranged, enhancing the adaptability of the vibration devices 30 to the overall structural layout of the wheelchair.
[0058] For example, the functional components include a seat 13 and a backrest 14. At least one vibration device 30 may be provided in the seat 13, and at least another vibration device 30 may be provided in the backrest 14.
[0059] In some embodiments, the wheelchair 100 may further include a buzzer and a display, both of which are disposed on the main body 10. There may be one or more buzzers, and when there are multiple buzzers, they may be disposed at different locations on the main body 10.
[0060] When the wheelchair 100 encounters an obstacle while in motion, it can provide an audible alert via a buzzer, and can also use buzzers in different locations to indicate the obstacle's location. When the wheelchair 100 encounters an obstacle, it can also display an icon or image on the screen to provide an alert, indicating the obstacle's location and providing steering input. Understandably, the wheelchair 100 can use either the buzzer or the display to alert the user when encountering an obstacle, or both simultaneously, and in conjunction with the vibration device 30, it can enhance the effectiveness and versatility of the alert, achieving a multimodal hybrid alert.
[0061] In practical applications, the wheelchair 100 of this embodiment has a cruise mode. In cruise mode, the wheelchair's control module controls the wheelchair to move forward at a constant speed according to the user's instructions, or the control module controls the wheelchair to travel along a preset path. In cruise mode, when the control module detects an obstacle, it can issue a reminder to the user, such as a vibration reminder, and / or a buzzer reminder, and / or a display reminder. The user can achieve obstacle avoidance through at least one obstacle avoidance mode. In some examples, the wheelchair stops after recognizing an obstacle in real time, and the user controls the wheelchair to go around it. In some examples, the wheelchair stops after recognizing an obstacle in real time, and after receiving a directional command provided by the user, the wheelchair autonomously controls itself to go around the obstacle according to the directional command, achieving intelligent obstacle avoidance.
[0062] Understandably, once the wheelchair detects an obstacle in real time, it can provide operation prompts through the onboard display to remind the user to avoid the obstacle. Alternatively, it can identify the location of the obstacle and generate vibration feedback through the vibration device 30 to prompt the user to operate and avoid the obstacle.
[0063] In practical applications, wheelchairs can achieve obstacle warning and obstacle avoidance through the following steps S1 to S3.
[0064] S1. Determine the distance to the obstacle.
[0065] In some embodiments, obstacles include positive obstacles and negative obstacles. Positive obstacles are those whose height is higher than the road surface, such as buildings, vehicles, or objects on the road. Negative obstacles are those whose height is lower than the road surface, such as potholes or road edges with cliffs.
[0066] After the wheelchair detects an obstacle in real time, it can determine the type and distance of the obstacle. If the obstacle is a positive obstacle and its distance is below a first threshold, proceed to step S2; if the obstacle is a negative obstacle and its distance is below a second threshold, proceed to step S2. The second threshold is greater than the first threshold. It should be noted that this logic can be applied to both dynamic and static obstacles.
[0067] S2, Tip
[0068] Provide users with a warning of an obstacle ahead, which can be achieved through one or more of the following: vibration, buzzer, or display.
[0069] In some embodiments, if the obstacle is a positive obstacle, the vibration device may vibrate at a first frequency / amplitude to provide a warning; if the obstacle is a negative obstacle, the vibration device may vibrate at a second frequency / amplitude to provide a warning. It is understood that the second frequency / amplitude is greater than the first frequency / amplitude, and is used to indicate the type of obstacle risk ahead to the user.
[0070] In other embodiments, if the obstacle is a positive obstacle, the vibration device provides a vibration alert for a first duration; if the obstacle is a negative obstacle, the vibration device provides a vibration alert for a second duration. It is understood that the second duration is longer than the first duration, used to alert the user to the type of obstacle risk ahead.
[0071] S3, Provides control feedback based on road conditions ahead.
[0072] If the obstacle in front blocks the way, the wheelchair should stop.
[0073] If the obstacle ahead is passable on one side, vibration feedback can be provided corresponding to that side. For example, taking a seat cushion with vibration devices on both the left and right sides, if the left side is blocked but the right side is passable, the right side vibrating device will vibrate to indicate to the user that they should move to the right. If the right side is blocked but the left side is passable, the left side vibrating device will vibrate to indicate to the user that they should move to the left.
[0074] Understandably, the display can provide visual cues for driving. Specifically, in autonomous driving mode, the display can simply show steering prompts, clarifying to the user that the steering is caused by an obstacle, reducing user anxiety and eliminating the need for additional user intervention. In assisted driving mode, the display can show steering control prompts.
[0075] In the description of this application, it should be understood that terms such as “first” and “second” are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0076] The wheelchair provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. An electric mobile device, characterized in that, include: Main body; An operating device is disposed in the main body; A vibration device is provided on the main body, and the vibration device is configured to generate vibration to alert the user to the presence of an obstacle. In this configuration, on a projection plane perpendicular to the height direction of the electric mobile device, the projection of the main body is staggered from the projections of the operating device and the vibration device along the center line of the first direction, and the first direction, the travel direction of the electric mobile device, and the height direction are perpendicular to each other.
2. The electric mobile device according to claim 1, characterized in that, The vibration device is provided on the operating device.
3. The electric mobile device according to claim 2, characterized in that, The operating device is a rocker arm, and at least one of the vibration devices is disposed at the bottom of the rocker arm.
4. The electric mobile device according to any one of claims 1 to 3, characterized in that: There are multiple vibration devices; On a projection plane perpendicular to the height direction of the electric mobile device, the projection of at least one of the vibration devices is located on one side of the center line, and the projection of at least another vibration device is located on the other side of the center line.
5. The electric mobile device according to claim 4, characterized in that: The main body includes functional components, which include at least one of armrests, seats, cushions, backrests, headrests, and footrests. Each functional component includes a first part and a second part. On a projection plane perpendicular to the height direction of the electric mobile device, the projection of the first part is located on one side of the center line, and the projection of the second part is located on the other side of the center line. At least one of the vibration devices is disposed in the first part, and at least another vibration device is disposed in the second part.
6. The electric mobile device according to claim 5, characterized in that, On a projection plane perpendicular to the height of the electric mobile device, the projection of the vibration device disposed in the first part and the projection of the vibration device disposed in the second part are symmetrical about the center line.
7. The electric mobile device according to claim 5, characterized in that: The functional components include at least two of the following: armrests, seats, cushions, backrests, headrests, and footrests; At least one of the said vibration devices is disposed in one of the armrest, seat, cushion, backrest, headrest, and footrest, and at least another said vibration device is disposed in the other of the armrest, seat, cushion, backrest, headrest, and footrest.
8. The electric mobile device according to any one of claims 1 to 3, characterized in that: The main body includes a left handrail and a right handrail. On a projection plane perpendicular to the height of the electric mobile device, the projection of the left handrail is located on one side of the center line, and the projection of the right handrail is located on the other side of the center line. The operating device is located on the left handrail or the right handrail.
9. The electric mobile device according to claim 8, characterized in that: There are multiple vibration devices, with at least one vibration device installed on the left handrail and at least another vibration device installed on the right handrail.
10. The electric mobile device according to any one of claims 1 to 3, characterized in that, Also includes: A buzzer is disposed on the main body. A display is disposed on the main body.