Control method of table and chair assembly

Abstract

The invention discloses a control method of a table and chair assembly, the table and chair assembly comprises a table and a chair, the table and the chair can move in the vertical direction, a millimeter wave radar and a camera are arranged on the table, the millimeter wave radar is used for measuring the distance between a user and the millimeter wave radar, and the control method comprises the following steps: determining that the user is close to the table and chair assembly; acquiring the height of the user according to the millimeter-wave radar and the camera; the heights of the table and the seat are adjusted in the vertical direction according to the height of the user. According to the control method of the table and chair assembly, the height of the table and the height of the chair are adjusted in the vertical direction according to the height of the user, so that the table and the chair reach the ideal height suitable for work and study of the user, and the comfort of the user is improved. Meanwhile, the user does not need to manually adjust the height of the table or the seat in the whole process, the heights of the table and the seat are automatically adjusted according to the height of the user, and the control efficiency of the table and chair assembly is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of smart home technology, and in particular to a control method for a table and chair assembly. Background Art

[0002] Existing lifting tables and lifting chairs usually require users to manually adjust them to a suitable height, and because the lifting table and lifting chair are designed independently, users need to adjust the lifting table and lifting chair separately, which is complicated to operate and has low control efficiency. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a control method for a table and chair assembly, which can automatically adjust the height of the table and the chair in the up and down directions according to the height of the user, so that the table and the chair can reach an ideal height suitable for the user to work and study, thereby improving the comfort of the user.

[0004] According to the control method of a table and chair assembly in an embodiment of the present invention, the table and chair assembly includes a table and a seat, the table and the seat are movable in the up and down directions, a millimeter wave radar and a camera are provided on the table, the millimeter wave radar is used to measure the distance between a user and the millimeter wave radar, and the control method includes: determining that a user is close to the table and chair assembly; obtaining the height of the user according to the millimeter wave radar and the camera; and adjusting the height of the table and the seat respectively in the up and down directions according to the height of the user.

[0005] According to the control method of the table and chair assembly of the embodiment of the present invention, the height of the user is obtained according to the millimeter wave radar and the camera, and the height of the table and the chair are adjusted in the up and down directions according to the height of the user, so that the table and the chair can reach an ideal height suitable for the user to work and study, thereby improving the comfort of the user. At the same time, the table and chair assembly can adapt to users of different heights to improve versatility. In addition, the whole process does not require the user to manually intervene to adjust the height of the table or chair, and the height of the table and chair is automatically adjusted according to the height of the user, effectively improving the control efficiency of the table and chair assembly.

[0006] In some embodiments of the present invention, determining that the user is close to the table and chair assembly includes determining that the distance between the user and the millimeter-wave radar measured by the millimeter-wave radar is less than a preset distance value.

[0007] In some embodiments of the present invention, respectively adjusting the positions of the table and the chair along the up and down directions according to the height of the user includes: obtaining the working mode selected by the user; if the user selects the standing mode, adjusting the height of the table along the up and down directions according to the standing mode combined with the height of the user; if the user selects the sitting mode, respectively adjusting the height of the table and the chair along the up and down directions according to the sitting mode combined with the height of the user.

[0008] In some embodiments of the present invention, if the user selects the sitting mode, it includes: determining that the user is located on the chair or the user selects the sitting mode in the user interface; and / or, if the user selects the standing mode, it includes: the user selects the standing mode in the user interface.

[0009] In some embodiments of the present invention, the seat is movable in a direction close to the table and away from the table and has a first preset position and a second preset position. The distance between the seat and the table at the first preset position is greater than the distance between the seat and the table at the second preset position. If the user selects the standing mode, the control method further includes: controlling the seat to move to the first preset position; if the user selects the sitting mode, the control method further includes: controlling the seat to move to the second preset position.

[0010] In some embodiments of the present invention, the seat further has a third preset position, and the distance between the seat and the table at the third preset position is smaller than the distance between the seat and the table at the second preset position, and the control method further includes: determining that the time when the user leaves the table and chair assembly is greater than the first preset time; controlling the seat to move downward and controlling the seat to move to the third preset position. In some embodiments of the present invention, the table and chair assembly further includes a slide rail, which is fixed to the ground where the table and chair assembly is located, and the slide rail extends along the arrangement direction of the seat and the table, and the seat is movably disposed on the slide rail.

[0011] In some embodiments of the present invention, the control method further includes: determining that the time the user is in the same working mode is greater than a second preset time; and reminding the user through a user interface.

[0012] In some embodiments of the present invention, the table includes: a panel; a vertical plate, the vertical plate extends along the up-down direction and the lower end is connected to the panel, and the millimeter wave radar and the camera are arranged on the vertical plate.

[0013] In some embodiments of the present invention, the table and chair assembly also includes: a first drive assembly, the first drive assembly includes a first motor and a first transmission device, the input end of the first transmission device is connected to the output end of the first motor, the output end of the first transmission device is connected to the table, and the first motor is a Hall motor; and / or, a second drive assembly, the second drive assembly includes a second motor and a second transmission device, the input end of the second transmission device is connected to the output end of the first motor, the output end of the second transmission device is connected to the chair, and the second motor is a Hall motor.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 is a flow chart of a control method of a table and chair assembly according to an embodiment of the present invention;

[0017] Figure 2 is a flow chart of a control method of a table and chair assembly according to another embodiment of the present invention. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The following describes a control method of a table and chair assembly according to an embodiment of the present invention with reference to the accompanying drawings.

[0022] like Figure 1 As shown, according to the control method of the table and chair assembly of an embodiment of the present invention, the table and chair assembly includes a table and a seat, the table and the seat are movable in the up and down directions, a millimeter wave radar and a camera are provided on the table, and the millimeter wave radar is used to measure the distance between the user and the millimeter wave radar.

[0023] It is understandable that millimeter wave radar can transmit and receive signals. Millimeter wave signals are transmitted by millimeter wave radar. These signals will be reflected back when encountering obstacles (such as users). Millimeter wave radar receives the reflected signals and sends them to the central processing unit. The central processing unit calculates the time difference between the transmitted signal and the received reflected signal, and uses the propagation speed of electromagnetic waves to enable the millimeter wave radar to measure the distance between the user and the millimeter wave radar. At the same time, the user's image is captured by the camera and sent to the central processing unit. The central processing unit analyzes the image captured by the camera and identifies the user's physical features, such as the head, shoulders, legs and other key parts. The user's actual height can be calculated by using the proportional relationship in the image or the pre-set reference object, combined with the distance information provided by the millimeter wave radar.

[0024] The control method of the table and chair assembly includes:

[0025] Determine that the user is close to the table and chair assembly. It is understandable that after determining that the user is close to the table and chair assembly through this step, the height of the table and the chair can be adjusted in the up and down directions according to the height of the user in the subsequent steps, thereby avoiding unnecessary energy consumption.

[0026] The user's height is obtained based on the millimeter-wave radar and the camera. Therefore, after determining that the user is close to the table and chair assembly, the millimeter-wave radar can measure the distance between the user and the millimeter-wave radar, and the user's height can be inferred by combining the user's image captured by the camera.

[0027] The height of the table and chair is adjusted in the up and down directions according to the height of the user. Therefore, after obtaining the height of the user in the previous step, the height of the table and chair is adjusted in the up and down directions according to the height of the user, so that the table and chair reach an ideal height suitable for the user to work and study, and the intelligent linkage adjustment of the table and chair is realized, thereby improving the comfort of the user, helping to reduce physical fatigue, and improving work and study efficiency. At the same time, the table and chair assembly can adapt to users of different heights to improve versatility. In addition, the entire process does not require the user to manually intervene to adjust the height of the table or chair, and the height of the table and chair is automatically adjusted according to the height of the user, effectively improving the control efficiency of the table and chair assembly.

[0028] Furthermore, a comparison table between body height and corresponding table and chair heights can be entered based on previous experimental results, relevant national standards or other authoritative data. After obtaining the user's height through millimeter-wave radar and camera and comparing it with the comparison table, the height of the table and chair that matches the user's height can be determined, and the height of the table and chair can be adjusted in the up and down directions respectively to make the height of the table and chair adapt to the user's height, thereby improving the user's comfort and improving the scientificity and rationality of the control method of the table and chair assembly.

[0029] According to the control method of the table and chair assembly of the embodiment of the present invention, the height of the user is obtained according to the millimeter wave radar and the camera, and the height of the table and the chair are adjusted in the up and down directions according to the height of the user, so that the table and the chair can reach an ideal height suitable for the user to work and study, thereby improving the comfort of the user. At the same time, the table and chair assembly can adapt to users of different heights to improve versatility. In addition, the whole process does not require the user to manually intervene to adjust the height of the table or chair, and the height of the table and chair is automatically adjusted according to the height of the user, effectively improving the control efficiency of the table and chair assembly.

[0030] In some embodiments of the present invention, determining that the user is close to the table and chair assembly includes determining that the distance between the user and the millimeter-wave radar measured by the millimeter-wave radar is less than a preset distance value.

[0031] It can be understood that the distance between the user and the millimeter-wave radar is measured by the signals transmitted and received by the millimeter-wave radar. When the distance between the user and the millimeter-wave radar measured by the millimeter-wave radar is less than the preset distance value, it is determined that the user is close to the table and chair assembly, thereby triggering subsequent steps.

[0032] In some embodiments of the present invention, Figure 1 As shown, adjusting the positions of the table and the chair in the up and down directions respectively according to the height of the user includes:

[0033] Obtaining the working mode selected by the user. It is understandable that the user may have different modes when using the table and chair assembly for work and study, and thus, the height of the table and chair suitable for the user needs to be adjusted according to different working modes.

[0034] If the user selects the standing mode, the height of the table is adjusted up and down according to the standing mode and the user's height. It is understandable that when the user selects the standing mode, the user stands to work and study. At this time, it is only necessary to adjust the height of the table up and down to an appropriate height according to the user's height.

[0035] If the user selects the sitting mode, the height of the table and the chair are adjusted up and down according to the sitting mode and the user's height. It is understandable that when the user selects the sitting mode, the user sits to work and study. At this time, the height of the table and the chair need to be adjusted up and down to a suitable height according to the user's height.

[0036] It should be noted that the working mode is not limited to standing mode and sitting mode, and can also be customized according to the user's personalized needs, preferences and specific usage scenarios. For example, when a user is using a seat component, he can easily make a series of personalized settings through the user interaction interface. These settings include but are not limited to adjusting the height of the table and seat, adjusting the front, back, left and right positions of the seat, etc., to ensure that the user can adjust the table and seat to the best state according to his or her physical characteristics and comfort needs. Once the user finds the state in which he or she feels most comfortable, the system will automatically record the current table and seat data and store it as an independent user profile, allowing the user to save the current table and seat state as a custom mode. In future use, the user only needs to simply select this custom mode, and the system will automatically adjust the table and seat to the previously saved state, thereby simplifying the user's operation process and improving the convenience and personalization of use.

[0037] In some embodiments of the present invention, Figure 1 As shown, if the user selects the sitting mode, it includes: determining that the user is located on the seat or the user selects the sitting mode in the user interface. It is understandable that the user can be determined to be located on the seat by taking an image with a camera or by the user selecting the sitting mode in the user interface, and the user selecting the sitting mode can be determined, thereby adjusting the height of the table and the seat in the up and down directions respectively according to the sitting mode and the height of the user.

[0038] Specifically, the user interface is wirelessly or wiredly connected to the central processing unit and includes at least options of sitting mode and standing mode. The user interface can be set on a table or a chair. For example, the user interface can be a touch screen or a physical keypad integrated on the table or the chair; or, the user interface can also be remotely accessed and controlled through a mobile application (APP). The user can download and install the APP on a smartphone, tablet computer or other mobile device, and then select the sitting mode or the standing mode through the APP.

[0039] It should be noted that the present invention is not limited to determining that the user is located on the seat based on the image captured by the camera, but may also be configured with a pressure sensor or a photosensitive element or other device on the seat to determine that the user is located on the seat.

[0040] In some embodiments of the present invention, Figure 1 As shown, if the user selects the standing mode, it includes: the user selects the standing mode in the user interface. Thus, the user selects the standing mode in the user interface, and thus, the height of the table is adjusted in the up and down directions according to the sitting mode combined with the height of the user.

[0041] In some embodiments of the present invention, Figure 1 As shown, the seat is movable in a direction close to the table and away from the table and has a first preset position and a second preset position. The distance between the seat and the table at the first preset position is greater than the distance between the seat and the table at the second preset position. If the user selects the standing mode, the control method also includes: controlling the seat to move to the first preset position; if the user selects the sitting mode, the control method also includes: controlling the seat to move to the second preset position.

[0042] It is understandable that when the user selects the sitting mode, the user works and studies while sitting. At this time, the height of the table and the chair need to be adjusted to a suitable height along the up and down directions according to the user's height, and the seat needs to be adjusted to a second preset position close to the table; or, when the user selects the standing mode, the user works and studies while standing. At this time, the height of the table needs to be adjusted to a suitable height along the up and down directions according to the user's height, and the seat needs to be adjusted to the first preset position close to the table, so as to adapt to the user's working mode and further improve the user's comfort.

[0043] In some embodiments of the present invention, Figure 2 As shown, the seat also has a third preset position, and the distance between the seat and the table at the third preset position is less than the distance between the seat and the table at the second preset position, and the control method further includes:

[0044] Determine that the time when the user leaves the table and chair assembly is greater than the first preset time. It is understandable that after determining through this step that the time when the user leaves the table and chair assembly is greater than the first preset time, it is determined that the user no longer implements the table and chair assembly, so that the subsequent steps can store the table and chair assembly and reduce the space occupied by the table and chair assembly. Specifically, the millimeter wave radar can be used in conjunction with the camera to determine that the time when the user leaves the table and chair assembly is greater than the first preset time. Among them, the first preset time can be 5 minutes.

[0045] The seat is controlled to move downward and to move to a third preset position. Thus, after determining that the time when the user leaves the table and chair assembly is greater than the first preset time, the seat is controlled to move downward so that the seat can be located under the table, and then the seat is controlled to move to the third preset position to store the seat, thereby reducing the space occupied by the table and chair assembly.

[0046] Furthermore, after controlling the seat to move downward and controlling the seat to move to a third preset position, the control method further includes: controlling the table to move downward, thereby further reducing the space occupied by the table and chair assembly.

[0047] In some embodiments of the present invention, the table and chair assembly further includes a slide rail, which is fixed to the ground where the table and chair assembly is located, extends along the arrangement direction of the seats and the table, and the seats are movably arranged on the slide rail. Thus, the seat can be moved toward the direction close to the table and away from the table by setting the slide rail, thereby ensuring the reliability of the seat movement.

[0048] Furthermore, the seat also includes a third drive assembly, the third drive assembly includes a third motor and a third transmission device, the input end of the third transmission device is connected to the output end of the third motor, the output end of the third transmission device is connected to the seat, and the third motor is a Hall motor.

[0049] Therefore, when the seat needs to move toward or away from the table, the central processing unit controls the third motor to operate so that the rotational force generated by the third motor is transmitted to the seat through the transmission device, and the third transmission device converts the rotational force into linear movement of the seat, thereby realizing the movement of the seat toward or away from the table. At the same time, through the precise conversion of the Hall motor's precise pulse count and the seat movement distance, the Hall motor can quickly respond to and accurately execute the command to adjust the seat position, which not only ensures the accuracy of the seat movement distance, but also improves the efficiency and stability of seat adjustment.

[0050] In some embodiments of the present invention, Figure 2 As shown, the control method also includes:

[0051] Determine that the time the user is in the same working mode is greater than the second preset time. It is understandable that after determining that the user is in the same working mode for a time greater than the second preset time through this step, it is determined that the user maintains the same posture for a long time, thereby triggering a subsequent reminder step to remind the user to perform appropriate physical activities or change the current posture, thereby protecting the user's health. Specifically, the millimeter wave radar can be used in conjunction with the camera to determine that the time the user leaves the table and chair assembly is greater than the second preset time.

[0052] Remind the user through the user interface. Thus, after the above step determines that the time the user has been in the same working mode is greater than the second preset time, the user is reminded through the user interface, thereby informing the user that the user has been in the same working mode for a certain period of time and has not performed enough physical activities, and may face health risks. Specifically, the content of the reminder may include suggesting that the user perform short physical activities, such as getting up and walking around, doing a few simple stretching exercises, or adjusting the sitting posture to reduce the burden on the body. At the same time, the reminder may also include some health tips, such as maintaining a good sitting posture, taking regular breaks to avoid eye fatigue, etc.

[0053] In some embodiments of the present invention, the table includes a panel and a vertical board. The vertical board extends in the up-down direction and the lower end is connected to the panel, and the millimeter-wave radar and the camera are arranged on the vertical board. Therefore, by arranging the millimeter-wave radar and the camera on the vertical board, the reliability of the millimeter-wave radar in measuring the distance between the user and the millimeter-wave radar can be improved, and the millimeter-wave radar and the camera can be effectively prevented from being blocked, thereby improving reliability.

[0054] Specifically, the panel is the main load-bearing platform of the table, providing space for operation and placement of items, while the vertical board extends in the up and down directions, and its main function is to support and connect, especially its lower end is firmly connected to the edge or bottom of the panel, forming a stable support structure. Since the vertical board is usually located on the side or back of the table, away from the main activity area on the desktop, the layout of the millimeter-wave radar and camera set on the vertical board effectively avoids the possible obstruction of the millimeter-wave radar or camera by other objects (such as objects on the desktop or human body), ensuring that the millimeter-wave radar and camera have a wider field of view.

[0055] In some embodiments of the present invention, the table and chair assembly further includes a first drive assembly, wherein the first drive assembly includes a first motor and a first transmission device, the input end of the first transmission device is connected to the output end of the first motor, the output end of the first transmission device is connected to the table, and the first motor is a Hall motor.

[0056] Therefore, when the table needs to move up and down, the central processing unit controls the operation of the first motor so that the rotational force generated by the first motor is transmitted to the table through the transmission device, and the transmission device converts the rotational force into linear movement of the table, thereby realizing the movement of the table in the up and down direction. At the same time, through the precise conversion of the Hall motor's precise pulse count and the seat movement distance, the Hall motor can quickly respond and accurately execute the instruction to adjust the seat position, which not only ensures the accuracy of the table and chair movement distance, but also improves the efficiency and stability of the table adjustment. Furthermore, the first motor can also include an overload protector or a thermal relay to protect the first motor and its related circuits and improve safety.

[0057] In some embodiments of the present invention, the table and chair assembly also includes a first drive assembly and a second drive assembly, the second drive assembly includes a second motor and a second transmission device, the input end of the second transmission device is connected to the output end of the first motor, the output end of the second transmission device is connected to the seat, and the second motor is a Hall motor.

[0058] Therefore, when the seat needs to move up and down, the central processing unit controls the second motor to operate so that the rotational force generated by the second motor is transmitted to the seat through the transmission device, and the second transmission device converts the rotational force into linear movement of the seat, thereby realizing the movement of the seat in the up and down direction. At the same time, through the precise conversion of the Hall motor's precise pulse count and the seat movement distance, the Hall motor can quickly respond to and accurately execute the instruction to adjust the seat position, which not only ensures the accuracy of the seat movement distance, but also improves the efficiency and stability of seat adjustment. Furthermore, the second motor can also include an overload protector or a thermal relay to protect the second motor and its related circuits and improve safety.

[0059] In some embodiments, the table has a first upper limit height and a first lower limit height and moves between the first upper limit height and the first lower limit height in the up-down direction. By limiting the first upper limit height and the first lower limit height, not only can the personalized needs of different users for the table height in working, learning or resting modes be met, but also the structural damage or safety hazards caused by excessive lifting of the table can be effectively prevented, thereby significantly improving the overall reliability and safety of the table. At the same time, an emergency brake button can also be set, which can be set in a conspicuous and easily accessible position on the table. When encountering an emergency, the user can quickly press the button to cut off the power circuit of the device, terminate any lifting movement of the table, and stabilize it in the current position, effectively preventing injuries or losses that may be caused by accidental operation or system failure.

[0060] In some embodiments, the seat has a second upper limit height and a second lower limit height and moves between the second upper limit height and the second lower limit height in the up-down direction. By limiting the second upper limit height and the second lower limit height, not only can the personalized needs of different users for seat height in working, learning or resting modes be met, but also the structural damage or safety hazards caused by excessive lifting of the seat can be effectively prevented, thereby significantly improving the overall reliability and safety of the seat. At the same time, an emergency brake button can also be set, which can be set in a conspicuous and easy-to-reach position of the seat. When encountering an emergency, the user can quickly press the button to cut off the power circuit of the device, terminate any lifting movement of the seat, and stabilize it in the current position, effectively preventing injuries or losses that may be caused by accidental operation or system failure.

[0061] It should be noted that the table and chair assembly and the control method of the table and chair assembly of the present application can be applied to multiple fields such as education and medical treatment to improve versatility. At the same time, the algorithm of the central processing unit can be optimized according to different application scenarios to adapt to different user needs and environments. Algorithm optimization solutions and structural diagrams for different scenarios can be provided.

[0062] The height of the table and chair is adjusted in the up and down directions according to the height of the user. Therefore, after obtaining the height of the user in the previous step, the height of the table and chair is adjusted in the up and down directions according to the height of the user, so that the table and chair reach an ideal height suitable for the user to work and study, and the intelligent linkage adjustment of the table and chair is realized, thereby improving the comfort of the user, helping to reduce physical fatigue, and improving work and study efficiency. At the same time, the table and chair assembly can adapt to users of different heights to improve versatility. In addition, the entire process does not require the user to manually intervene to adjust the height of the table or chair, and the height of the table and chair is automatically adjusted according to the height of the user, effectively improving the control efficiency of the table and chair assembly.

[0063] Other components of the table and chair assembly according to the embodiment of the present invention, such as the table and the chair, and the operation thereof are well known to those skilled in the art and will not be described in detail here.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A control method for a table and chair assembly, characterized in that: The table and chair assembly includes a table and a seat, both of which are movable in the up and down directions, a millimeter wave radar and a camera are arranged on the table, and the millimeter wave radar is used to measure the distance between the user and the millimeter wave radar, and the control method includes: Determining that a user is close to the table and chair assembly; Acquire the height of the user according to the millimeter wave radar and the camera; The heights of the table and the seat are adjusted respectively along the up and down directions according to the height of the user.

2. The control method of the table and chair assembly according to claim 1, characterized in that: The determining that the user is close to the table and chair assembly includes determining that the distance between the user and the millimeter-wave radar measured by the millimeter-wave radar is less than a preset distance value.

3. The control method of the table and chair assembly according to claim 1, characterized in that: The adjusting the positions of the table and the seat respectively along the up and down directions according to the height of the user comprises: Obtaining the working mode selected by the user; If the user selects the standing mode, adjusting the height of the table along the up-down direction according to the standing mode and the height of the user; If the user selects the sitting mode, the heights of the table and the chair are adjusted respectively along the up and down directions according to the sitting mode and the height of the user.

4. The control method of the table and chair assembly according to claim 3, characterized in that: If the user selects the sitting mode, it includes: determining that the user is located on the seat or the user selects the sitting mode in the user interface; And / or, if the user selects the station mode includes: the user selects the station mode in a user interface.

5. The control method of the table and chair assembly according to claim 3, characterized in that: The seat is movable in a direction close to the table and away from the table and has a first preset position and a second preset position. The distance between the seat and the table at the first preset position is greater than the distance between the seat and the table at the second preset position. If the user selects the standing mode, the control method further includes: controlling the seat to move to the first preset position; if the user selects the sitting mode, the control method further includes: controlling the seat to move to the second preset position.

6. The control method of the table and chair assembly according to claim 5, characterized in that: The seat further has a third preset position, and the distance between the seat and the table at the third preset position is smaller than the distance between the seat and the table at the second preset position, and the control method further includes: Determining that the time when the user leaves the table and chair assembly is greater than a first preset time; The seat is controlled to move downward and is controlled to move to the third preset position.

7. The control method of the table and chair assembly according to claim 5, characterized in that: The table and chair assembly also includes a slide rail, which is fixed to the ground where the table and chair assembly is located. The slide rail extends along the arrangement direction of the seats and the table, and the seat is movably arranged on the slide rail.

8. The control method of the table and chair assembly according to claim 1, characterized in that: The control method further comprises: Determining that the time for which the user is in the same working mode is greater than a second preset time; Alert the user through the user interface.

9. The control method of the table and chair assembly according to claim 1, characterized in that: The table comprises: panel; A vertical plate extends along the up-down direction and the lower end of the vertical plate is connected to the panel, and the millimeter-wave radar and the camera are arranged on the vertical plate.

10. The control method of the table and chair assembly according to claim 1, characterized in that: The table and chair assembly also includes: A first driving assembly, the first driving assembly comprises a first motor and a first transmission device, an input end of the first transmission device is connected to an output end of the first motor, an output end of the first transmission device is connected to the table, and the first motor is a Hall motor; And / or, a second drive component, the second drive component includes a second motor and a second transmission device, the input end of the second transmission device is connected to the output end of the first motor, the output end of the second transmission device is connected to the seat, and the second motor is a Hall motor.

Images