Human body supporting appliance and control method and device thereof

Abstract

The invention provides a human body supporting appliance and a control method and device thereof. According to the control method of the human body supporting appliance, the human body supporting appliance comprises an air bag used for providing supporting force, and the method comprises the steps that the target air pressure and the environment temperature of the air bag are obtained; correcting the target air pressure based on the environment temperature to obtain temperature correction air pressure; closed-loop control is performed on an actual air pressure of the airbag according to the temperature-corrected air pressure such that the actual air pressure of the airbag reaches the temperature-corrected air pressure, where the target air pressure corresponds to the reference temperature, the temperature-corrected air pressure is lower than the target air pressure when the ambient temperature is higher than the reference temperature, and the temperature-corrected air pressure is lower than the target air pressure when the ambient temperature is lower than the reference temperature. The temperature correction air pressure is higher than the target air pressure.

Description

Technical Field

[0001] This application relates to the field of human support devices, and more specifically, to a human support device and its control method and apparatus. Background Art

[0002] With the improvement of living standards and health awareness, people increasingly use various human support devices containing airbags in daily life, such as lumbar supports, neck supports, inflatable beds, etc., to provide support for the body or various parts of the body, thereby improving human comfort or providing posture correction. However, when these support devices are used in scenarios where environmental conditions (such as temperature) change frequently or drastically, the airbags in the devices may experience repeated inflation or deflation, and may even experience over-inflation or over-deflation. These situations may accelerate the aging of the airbags and reduce people's usage experience of the support devices. Summary of the Invention

[0003] This application provides a human support device and its control method and apparatus. The following introduces each aspect involved in the embodiments of this application.

[0004] In a first aspect, a control method for a human support device is provided. The human support device includes an airbag for providing support force. The method includes: obtaining a target air pressure and an environmental temperature of the airbag; correcting the target air pressure based on the environmental temperature to obtain a temperature-corrected air pressure; and performing closed-loop control on the actual air pressure of the airbag according to the temperature-corrected air pressure, so that the actual air pressure of the airbag reaches the temperature-corrected air pressure. Here, the target air pressure corresponds to a reference temperature. When the environmental temperature is higher than the reference temperature, the temperature-corrected air pressure is lower than the target air pressure, and when the environmental temperature is lower than the reference temperature, the temperature-corrected air pressure is higher than the target air pressure.

[0005] In some implementation manners according to the first aspect, the correcting the target air pressure based on the environmental temperature to obtain a temperature-corrected air pressure includes: reducing the target air pressure to obtain the temperature-corrected air pressure when the environmental temperature is higher than the reference temperature by a first threshold; and increasing the target air pressure to obtain the temperature-corrected air pressure when the environmental temperature is lower than the reference temperature by a second threshold.

[0006] In some implementation manners according to the first aspect, the obtaining the target air pressure of the airbag includes: obtaining a set air pressure set by a user of the human support device for the airbag and a historical usage duration of the airbag; and increasing the set air pressure according to the historical usage duration of the airbag to obtain the target air pressure.

[0007] In some implementations according to the first aspect, obtaining the set air pressure of the airbag for the user of the human support device includes: obtaining the historical usage data of the user for the human support device; and obtaining the set air pressure of the airbag for the user based on the historical usage data of the user.

[0008] In some implementations according to the first aspect, the method further includes: determining the air replenishment time of the airbag according to the historical usage duration of the airbag; when the airbag reaches the set air pressure, replenishing the airbag and continuing for the air replenishment time; and if the air pressure of the airbag after air replenishment is less than the target air pressure, determining that the airbag is aged and replenishing the airbag again.

[0009] In a second aspect, a control device for a human support device is provided. The human support device includes an airbag for providing a support force. The control device includes: an acquisition module for acquiring the target air pressure and the ambient temperature of the airbag; a correction module for correcting the target air pressure based on the ambient temperature to obtain a temperature-corrected air pressure; and a control module for performing closed-loop control on the actual air pressure of the airbag according to the temperature-corrected air pressure so that the actual air pressure of the airbag reaches the temperature-corrected air pressure.

[0010] In some implementations according to the second aspect, correcting the target air pressure based on the ambient temperature to obtain a temperature-corrected air pressure includes: reducing the target air pressure to obtain the temperature-corrected air pressure when the ambient temperature is higher than a reference temperature by a first threshold, and increasing the target air pressure to obtain the temperature-corrected air pressure when the ambient temperature is lower than the reference temperature by a second threshold.

[0011] In some implementations according to the second aspect, obtaining the target air pressure of the airbag includes: obtaining the set air pressure of the airbag for the user of the human support device and the historical usage duration of the airbag; and increasing the set air pressure according to the historical usage duration of the airbag to obtain the target air pressure.

[0012] In some implementations according to the second aspect, obtaining the set air pressure of the airbag for the user of the human support device includes: obtaining the historical usage data of the user for the human support device; and obtaining the set air pressure of the airbag for the user based on the historical usage data of the user.

[0013] In some implementations according to the second aspect, the control device further includes a determination module, and the determination module is configured to perform the following operations: determine the air replenishment time of the airbag according to the historical usage duration of the airbag; when the airbag reaches the set air pressure, replenish air to the airbag and continue for the air replenishment time; if the air pressure of the airbag after air replenishment is less than the target air pressure, determine that the airbag is aged and replenish air to the airbag again.

[0014] In a third aspect, there is provided a control device for a human support appliance, the human support appliance including an airbag for providing a support force, the control device including: a memory for storing a program; a processor for calling and running the program stored in the memory, such that the control device executes the method according to the first aspect and any of its implementations.

[0015] In a fourth aspect, there is provided a human support appliance including an airbag for providing a support force, and further including the control device according to the second aspect and any of its implementations or the control device according to the third aspect.

[0016] In a fifth aspect, there is provided a chip including a processor, the processor being configured to call and run a program from a memory, such that a device installed with the chip can execute the method according to the first aspect and any of its implementations.

[0017] In a sixth aspect, there is provided a computer-readable storage medium having a program stored thereon, the program being configured to execute the method according to the first aspect and any of its implementations.

[0018] In a seventh aspect, there is provided a computer program product including a program, the program being configured to execute the method according to the first aspect and any of its implementations.

[0019] In an eighth aspect, there is provided a computer program including code for executing the method according to the first aspect and any of its implementations.

[0020] When using a support appliance, the airbag in these appliances may expand or deflate correspondingly due to an increase or decrease in ambient temperature. The expansion or deflation of the airbag volume may, on the one hand, accelerate the aging of the airbag and reduce its service life, and on the other hand, may cause the support appliance to deviate from the comfortable position initially set by the user, making the user feel uncomfortable during use.

[0021] Through the implementation method of the present application, on the one hand, a closed-loop control is adopted for the air pressure in the airbag, that is, the actual air pressure in the airbag is used as a feedback signal. When the actual air pressure is higher than the target air pressure of the airbag due to temperature increase, the air pressure in the airbag is reduced; when the actual air pressure is lower than the target air pressure due to temperature decrease, the air pressure in the airbag is increased, so that the air pressure in the airbag can be consistently maintained and the fluctuation of the air pressure in the airbag is reduced. On the other hand, a temperature compensation control is adopted for the target air pressure of the airbag, that is, when the temperature is high, the target air pressure (i.e., the temperature compensation air pressure) is made lower, and vice versa, so that the expansion or deflation of the airbag caused by temperature change can be further reduced. Thus, the aging of the airbag caused by temperature change can be delayed and the user experience can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic flowchart of the control method for a human support appliance provided by an embodiment of the present application.

[0023] Figure 2 Schematic block diagram of a lumbar support control device provided by an embodiment of the present application.

[0024] Figure 3 For Figure 2 Schematic flowchart of the lumbar support control method executed by the lumbar support control device shown.

[0025] Figure 4 Schematic block diagram of the control device for a human support appliance provided by an embodiment of the present application.

[0026] Figure 5 Schematic block diagram of the control device for a human support appliance provided by another embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application shall fall within the protection scope of the present application.

[0028] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] With the improvement of living standards and health awareness, people use various human support appliances containing airbags more and more in their lives, such as lumbar supports, neck supports, inflatable beds, etc., to provide support for the body or various parts of the body, thereby improving human comfort or providing posture correction. However, when using these support appliances in scenarios where environmental conditions (such as temperature) change frequently or drastically, the airbags in the appliances may experience repeated inflation or deflation, and even excessive inflation or deflation may occur, which may accelerate the aging of the airbags and reduce people's usage experience of the support appliances.

[0031] The embodiments of the present application solve the above problems by adopting closed-loop control and combining temperature compensation. Specifically, on the one hand, the embodiments of the present application adopt closed-loop control for the air pressure in the airbag, that is, taking the actual air pressure in the airbag as a feedback signal. When the actual air pressure is higher than the target air pressure of the airbag due to temperature increase, the air pressure in the airbag is reduced; when the actual air pressure is lower than the target air pressure due to temperature decrease, the air pressure in the airbag is increased, so that the air pressure in the airbag can be consistently maintained, reducing the fluctuation of the air pressure in the airbag. On the other hand, temperature compensation control is adopted for the target air pressure in the airbag, that is, when the temperature is higher, the air pressure after temperature compensation (i.e., temperature compensation air pressure) is lower, and vice versa, so that the inflation or deflation of the airbag caused by temperature change can be further reduced. Thus, the aging of the airbag caused by temperature change can be delayed, and the user's usage experience can be improved.

[0032] The following combines Figures 1 to 5 , to further introduce the embodiments of the present application, so that those skilled in the art can better understand the technical solutions of the present application.

[0033] Figure 1The schematic flowchart of the control method 100 of the human support device provided by an embodiment of the present application is shown. As Figure 1 shown, the control method 100 may include step S110 to step S130.

[0034] Step S110: Obtain the target air pressure and ambient temperature of the airbag;

[0035] Step S120: Correct the target air pressure based on the ambient temperature to obtain the temperature-corrected air pressure;

[0036] Step S130: Perform closed-loop control on the actual air pressure of the airbag according to the temperature-corrected air pressure, so that the actual air pressure of the airbag reaches the temperature-corrected air pressure.

[0037] Among them, the target air pressure corresponds to the reference temperature. When the ambient temperature is higher than the reference temperature, the temperature-corrected air pressure is lower than the target air pressure, and when the ambient temperature is lower than the reference temperature, the temperature-corrected air pressure is higher than the target air pressure.

[0038] In step S110, the target air pressure may represent the air pressure that is expected for the airbag to reach before temperature compensation, that is, before temperature compensation, as the target value for the closed-loop control performed on the air pressure of the airbag, the air pressure that is expected for the airbag to reach. The acquisition of the target air pressure will be introduced in more detail below.

[0039] In step S110, the ambient temperature may represent the ambient temperature of the surrounding environment where the support device is located. The ambient temperature can be obtained by various means, such as being sensed by a temperature sensor, using the temperature of the temperature adjustment device (for example, air conditioner) in the surrounding environment as the ambient temperature, and so on. In addition, those skilled in the art can easily think of various other means to obtain the ambient temperature to achieve the monitoring of the ambient temperature, which will not be elaborated here.

[0040] In step S120, various correction algorithms can be adopted to correct the target air pressure based on the ambient temperature. As is well known to those skilled in the art, there is a certain constraint relationship between the volume of a gas and the temperature. For example, the ideal gas equation PV = nRT specifically defines the relationship between the volume, pressure, and temperature of a gas, where P is the pressure of the gas, V is the volume of the gas, n is the amount of substance (number of moles), R is the ideal gas constant, and T is the absolute temperature. Usually, the support device is used in the atmospheric environment, so the pressure is generally constant. Then, there is often a direct proportional relationship between the temperature and the volume of the gas, that is, when the temperature increases, the volume of the gas increases; when the temperature decreases, the volume of the gas decreases. Based on this, in order to reduce the inflation or deflation of the airbag when the temperature rises or falls, the correction algorithm only needs to generally meet the following conditions: the target air pressure corresponds to the reference temperature, when the ambient temperature is higher than the reference temperature, the temperature-corrected air pressure is lower than the target air pressure, and when the ambient temperature is lower than the reference temperature, the temperature-corrected air pressure is higher than the target air pressure.

[0041] For example, the target air pressure can be linearly corrected with respect to the ambient temperature to obtain the temperature-corrected air pressure. As an example, assuming that the reference temperature is T0, the target air pressure is P0, and the ambient temperature is T, the temperature-corrected air pressure P obtained after linear correction can be: (P - P0) / P0 = (T0 - T) / T0.

[0042] However, when the temperature changes frequently, linear correction may cause the system to start frequently for temperature compensation, but overly subtle corrections may not be felt by the user. Therefore, linear correction may lead to unnecessary increase in system energy consumption. As an example, in some embodiments, the target air pressure can be reduced to obtain the temperature-corrected air pressure only when the ambient temperature T is higher than the reference temperature T0 by a first threshold; and the target air pressure can be increased to obtain the temperature-corrected air pressure when the ambient temperature T is lower than the reference temperature T0 by a second threshold. The magnitudes of the first threshold and the second threshold can be determined by those skilled in the art according to the actual application and specific requirements, and are not limited in this application.

[0043] It should be understood that the correction algorithms listed above are only examples, and the specific algorithms in actual applications may be related to various factors such as the material of the airbag, the usage scenario of the support device, and the user's usage preferences. Therefore, the correction algorithm can be determined by those skilled in the art according to the specific application and actual requirements, and is not limited in this application.

[0044] Those skilled in the art should understand that closed-loop control (CLC) refers to a control system design that uses feedback to regulate and adjust the output of the system. In this type of control system, the actual output is measured and compared with the target value or reference value. The difference between the two is called the error signal, and the controller adjusts the behavior of the system based on this error signal to reduce or eliminate the error.

[0045] In step S130, the temperature-corrected air pressure is used as the target value in the closed-loop control. At the same time, the actual air pressure of the airbag is continuously collected as the feedback signal, and the collected feedback signal is compared with the target value, so as to inflate or deflate the airbag accordingly, so that the air pressure in the airbag gradually reaches the target value, that is, the temperature-corrected air pressure.

[0046] In this embodiment of the present application, due to the adoption of closed-loop control and temperature compensation, the phenomenon that the airbag of the supporting device expands and deflates for a long time due to temperature changes can be reduced, so that the aging of the airbag can be delayed and the user experience can be improved.

[0047] Returning to step S110 above, the target air pressure in this step can be obtained in various ways. For example, the target air pressure can be obtained directly or indirectly. Regarding direct acquisition, as an example, the target air pressure can directly come from the user's setting. For example, the target air pressure can be obtained by the user directly inputting. Another example is that the target air pressure can directly come from the user's historical setting data. Regarding indirect acquisition, as an example, the target air pressure can be obtained by transforming the data set by the user. For example, under normal circumstances, the performance of the airbag may decay over time. At this time, this decay can be considered, and after compensating the air pressure set by the user, the target air pressure can be obtained.

[0048] Optionally, in some embodiments, the target air pressure of the airbag can be obtained in the following manner: obtaining the set air pressure of the user for the airbag and the historical usage duration of the airbag in the human support device; increasing the set air pressure according to the historical usage duration of the airbag to obtain the target air pressure. As is well known, when initially used, the airbag often has good elasticity. At this time, in order to make the airbag reach the set air pressure, the air pump needs to work for a specific time to fill the airbag with a specific amount of gas, so that the airbag reaches the set air pressure. However, over time, the elasticity of the airbag may gradually decrease and the material may become loose or swollen. At this time, if the airbag is still inflated according to the set air pressure, the amount of gas filled may not enable the airbag to reach the set air pressure. Therefore, the set air pressure can be appropriately increased and the increased set air pressure can be used as the target air pressure to fill the airbag with more gas, so that the airbag can finally reach the desired air pressure. For a specific historical usage duration, how much the set air pressure should be increased can be obtained in advance through experimental verification. For example, several airbag samples after 1 year, 3 years, 5 years... N years of use are tested, and the specific value by which the set air pressure should be increased is obtained through experiments. As an example, for airbags after 1 year, 3 years, and 5 years, after experimental verification, the set air pressure needs to be increased to 1.1 times, 1.2 times, and 1.3 times respectively, and the increased air pressure is used as the target air pressure for inflation to achieve the desired air pressure. It should be understood that the specific values listed here are only examples, and those skilled in the art can determine the specific values according to the specific material of the airbag, the usage scenario, the experimental method, etc.

[0049] Optionally, in some embodiments, the set air pressure of the user for the airbag can be directly obtained through user input. Alternatively, in some embodiments, the set air pressure of the user for the airbag can be obtained through the user's historical usage data. As an example, in some examples, the set air pressure can be obtained in the following manner: obtaining the historical usage data of the user for the human support device; based on the historical usage data of the user, obtaining the set air pressure of the user for the airbag. To this end, the corresponding historical usage data of different users can be stored in advance in association with each other to achieve memory storage, and then the user can be identified by authenticating the user's identity, so as to obtain the historical usage data corresponding to different users, where the historical usage data includes user preference or habit data, such as the airbag pressure set by the user when using the human support device last time. As for the user authentication, it can be carried out in various ways. For example, the user directly selects their identity on the screen, the user authenticates their identity by entering an account and password, and the user is identified through a camera, etc. It should be understood that the listed authentication methods are only examples, and those skilled in the art can easily think of other ways to achieve user authentication, which will not be elaborated here.

[0050] Optionally, in some embodiments, the aging of the airbag can be identified in the following manner: Determine the air replenishment time of the airbag according to the historical usage duration of the airbag; When the airbag reaches the set air pressure, replenish the airbag and continue for the air replenishment time; If the air pressure of the airbag after air replenishment is less than the target air pressure, determine that the airbag has aged and replenish the airbag again. In this embodiment, the air replenishment time of the airbag can be obtained through experiments. As an example, experiments can be conducted on several airbag samples to obtain how long it takes to replenish the airbag samples to the target air pressure by an air pump after the airbag samples have been used for a certain period of time (for example, 1 year, 3 years, 5 years). Thus, the corresponding air replenishment time can be obtained based on the historical usage duration of the airbag. At this time, if the airbag still does not reach the target air pressure after replenishing the airbag and continuing for the air replenishment time, it can be considered that the airbag has aged, and the airbag can continue to be replenished. In addition, in some embodiments, after confirming the aging of the airbag, a fault prompt can be sent to the user.

[0051] Optionally, in some embodiments, the user can set the set air pressure of the airbag of the human support device through the touch screen, thereby reducing the user's dependence on the airbag hardware switch.

[0052] Optionally, in the embodiments of the present application, two-way control can be adopted for the airbag of the support device. For example, an air pump, an intake valve, and a deflation valve can be used simultaneously. Therefore, when necessary, the air pump and the intake valve can be synchronously controlled to achieve inflation of the airbag. Alternatively, when necessary, the deflation valve can be controlled to achieve deflation of the airbag. Thus, two-way control of the airbag is achieved.

[0053] Those skilled in the art should understand that in the above embodiments, the air pressure in the airbag can be monitored by various means to achieve closed-loop control of the air pressure of the airbag. For example, a pressure sensor, an optical sensor, a mechanical pressure gauge, and indirect measurement can be used to monitor the air pressure in the airbag. Note that the listed methods are only examples and are not used to limit the embodiments of the present application.

[0054] Through the above embodiments of the present application, various advantages can be obtained. For example, in some embodiments, through closed-loop control and temperature compensation of the airbag of the support device, automatic adjustment of the air pressure of the airbag can be achieved to maintain the consistency of the air pressure of the airbag, and to avoid problems such as expansion or deflation of the airbag after long-term use, realizing automatic adjustment of the comfort of the user under different ambient temperatures. In addition, in some embodiments, the historical usage data of the user can be automatically obtained through a memory function associated with different users for personalized adjustment for the user, thereby avoiding the problem of multiple users repeatedly adjusting the airbag of the support device. Additionally, in some embodiments, the performance degradation of the airbag can be monitored to determine whether the airbag has aged.

[0055] The general usage of the embodiments of the present application is introduced above. Taking the specific scenario of the lumbar support in a vehicle as an example, the present application will be further introduced in combination with specific embodiments. However, it should be understood that the embodiments of the present application are not limited to being applied to the lumbar support, or even the lumbar support in a vehicle, but can be applicable to various scenarios where human body support appliances can be applied.

[0056] In recent years, with the improvement of the electrification level of the whole vehicle, people have put forward higher requirements for vehicles in terms of intelligence. For example, for the lumbar support on a vehicle, people not only require it to show a sense of technology, but also require it to show higher comfort and more user-friendly design.

[0057] Figure 2 The schematic block diagram of a lumbar support control device 200 provided by an embodiment of the present application is shown. As Figure 2 shown, the lumbar support control device 200 may include a Display Head Unit (DHU) 210, a central domain controller 220, a lumbar support adjustment switch 230, a seat module 240, and a lumbar support massage module 250. Among them, the DHU 210 and the central domain controller 220 can communicate through Ethernet, the central domain controller 220 and the seat module 240 can communicate through a Controller Area Network (CAN), and the seat module 240 and the lumbar support massage module 250 can communicate through a Local Interconnect Network (LIN). In addition, as shown in the figure, the DHU 210, the central domain controller 220, the seat module 240, and the lumbar support massage module 250 all include an Integrated Circuit (IC).

[0058] The DHU 210 may refer to an integrated device installed on the vehicle dashboard, responsible for providing various functions, including but not limited to navigation systems, vehicle information displays, infotainment, rearview cameras, and so on. Specifically, in this embodiment of the present application, the DHU 210 may integrate a lumbar support soft switch (e.g., a four-way adjustment soft switch) adjustment module and a multi-user habit preservation and management memory module. In the lumbar support soft switch adjustment module, the soft switch is relative to the hard switch and generally refers to a virtual control switch on the screen, while the hard switch generally refers to a physical, mechanical control device, such as a button, knob, or lever. The multi-user habit preservation and management memory module can be used to save the user's historical usage data (or usage preference data) regarding the lumbar support. For example, the multi-user habit preservation and management memory module can save the historical usage data of users such as the male owner, female owner, child 1, child 2, etc., and the user can select the corresponding user (e.g., the male owner) on the DHU 210 to achieve the adjustment of the corresponding lumbar support, avoiding repeated adjustments each time of use. It should be understood that the user names and quantities listed here are only examples, and those skilled in the art can set any number and identities of users in the DHU 210 according to actual needs.

[0059] The central domain controller 220 may integrate a lumbar support control module, a passenger compartment temperature detection module, an airbag inflation and deflation pressure curve module, and an airbag pressure value monitoring module. The lumbar support control module can receive the lumbar support control signal from the soft switch of the DHU 210, perform certain processing on the received lumbar support control signal, and then send it to the seat module 240. Finally, the seat module 240 completes the control of the lumbar support through the lumbar support adjustment switch. The passenger compartment temperature detection module can detect the temperature in the passenger compartment (i.e., the ambient temperature of the lumbar support) in various ways, such as obtaining the temperature of the passenger compartment through a temperature sensor set in the passenger compartment, directly using the set temperature of the vehicle air conditioner as the passenger compartment temperature when the vehicle air conditioner is started, and so on. The airbag inflation and deflation pressure curve module can save the airbag pressure curve when inflating or deflating the airbag. For example, when inflating the airbag, the initial inflation speed is relatively fast, the airbag pressure rises relatively fast, and when the inflation is approaching the end, the inflation speed slows down, and the airbag pressure rise speed slows down, entering the "plateau period". The airbag pressure value monitoring module can include a pressure value monitoring algorithm for controlling the lumbar support massage module 250 to continuously detect the air pressure of the airbag, thereby achieving the monitoring of the airbag pressure.

[0060] The seat module 240 can receive instructions from the central domain controller 220, such as lumbar support adjustment instructions, lumbar support massage instructions, etc., and control the lumbar support adjustment switch 230 and the lumbar support massage module 250 according to the received instructions.

[0061] The lumbar support adjustment switch 230 may include four-way adjustment hard switches, namely, up, down, forward, and backward switches, to achieve adjustment in four directions for the lumbar support. Specifically, the lumbar support adjustment switch 230 may, under the control of the seat module 240, operate the corresponding switches among the up, down, forward, and backward switches to achieve the adjustment of the lumbar support.

[0062] The lumbar support massage module 250 may include a control module 251, an air pump 252, an intake valve 253, a pressure sensor 254, and a deflation valve 255. The intake valve 253 and the deflation valve 255 may both be one-way deflation valves, and the combination of the two can achieve two-way control of the airbag. The pressure sensor 254 may detect the air pressure in the airbag. The lumbar support massage module 250 may receive instructions from the seat module 240, and the control module 251 may, based on the received instructions, control the air pump 252, the intake valve 253, the pressure sensor 254, and the deflation valve 255 to achieve the desired operation.

[0063] The specific structure of the lumbar support control device 200 has been introduced above. Next, the lumbar support control method implemented by the lumbar support control device 200 will be introduced.

[0064] Figure 3 Shown by Figure 2 is a schematic flowchart of the lumbar support control method 300 implemented by the lumbar support control device 200 shown. As Figure 3 shown, the lumbar support control method 300 may include steps S310 to step S390.

[0065] Step S310: Power on the whole vehicle.

[0066] Step S320: Determine whether a memory user (i.e., a stored user) is associated. For example, if the user selects a specific user from the memory positions in the DHU 210, then the stored user is associated, and thus the historical data of the stored user can be used to operate the lumbar support.

[0067] Step S330: In the case where no memory user is associated, determine whether there is a lumbar support adjustment request. The lumbar support adjustment request may come from the input of the soft switch in the DHU 210 or the input of the lumbar support adjustment switch 230.

[0068] Step S340: The central domain controller 220 drives and issues instructions, for example, monitors the ambient temperature, switch input, and / or pressure value.

[0069] Step S350: Drive the air pump or the pressure relief valve. The lumbar support massage module 250 collects the air pressure in the airbag, and determines whether the air pressure reaches the set target according to the collected air pressure. If it reaches the set target, proceed to step S360; otherwise, return to step S340 and repeat the previous steps to achieve closed-loop control until the set target is reached.

[0070] Step S370: When a memory user is associated, the central domain controller 220 issues an instruction, such as monitoring the temperature. Since there is historical data of the associated memory user, there is no need to receive the switch input and the pressure value anymore.

[0071] Step S380: Drive the air pump or the pressure relief valve. The lumbar support massage module 250 collects the air pressure of the airbag, and determines whether the air pressure reaches the set target according to the collected air pressure. If the set target is reached, proceed to step S390; otherwise, return to step S370 and repeat the previous steps to achieve closed-loop control until the set target is reached.

[0072] Through the above embodiments of the present application, an intelligent and highly reliable lumbar support control means is provided. Among them, closed-loop control, temperature compensation, and associated user memory functions are added. Thus, the following technical effects can be achieved: By integrating closed-loop control and temperature compensation, the problems of inflation and / or deflation of the lumbar support on the market after long-term use are avoided; the problem of multiple different users repeatedly adjusting the lumbar support is avoided; since soft switches are used in the DHU, the user's dependence on the mechanical lumbar support switch is avoided.

[0073] The above takes the scenario of the lumbar support on a vehicle as an example to introduce the embodiments of the present application. The following combines Figure 4 and Figure 5 to introduce the device embodiments of the present application.

[0074] Figure 4 FIG. shows a schematic block diagram of a control device 400 for a human support appliance provided by an embodiment of the present application. As Figure 4 shown, the control device 400 may include: an acquisition module 410 for acquiring the target air pressure of the airbag and the ambient temperature; a correction module 420 for correcting the target air pressure based on the ambient temperature to obtain a temperature-corrected air pressure; and a control module 430 for performing closed-loop control on the actual air pressure of the airbag according to the temperature-corrected air pressure so that the actual air pressure of the airbag reaches the temperature-corrected air pressure.

[0075] Optionally, in some embodiments, the target air pressure corresponds to a reference temperature. Among them, correcting the target air pressure based on the ambient temperature to obtain a temperature-corrected air pressure includes: reducing the target air pressure to obtain a temperature-corrected air pressure when the ambient temperature is higher than the reference temperature by a first threshold, and increasing the target air pressure to obtain a temperature-corrected air pressure when the ambient temperature is lower than the reference temperature by a second threshold.

[0076] Optionally, in some embodiments, acquiring the target air pressure of the airbag includes: acquiring the set air pressure of the airbag set by the user of the human support appliance and the historical usage duration of the airbag; and increasing the set air pressure according to the historical usage duration of the airbag to obtain the target air pressure.

[0077] Optionally, in some embodiments, obtaining the set air pressure of the airbag for the user of the human support appliance includes: obtaining the historical usage data of the user for the human support appliance; and obtaining the set air pressure of the airbag for the user based on the historical usage data of the user.

[0078] Optionally, in some embodiments, the control device 400 may further include a determination module. The determination module may determine the air replenishment time of the airbag according to the historical usage duration of the airbag; when the airbag reaches the set air pressure, replenish the airbag and continue for the air replenishment time; if the air pressure of the airbag after air replenishment is less than the target air pressure, determine that the airbag is aged and replenish the airbag again.

[0079] Figure 5 The schematic block diagram of the control device 500 of the human support appliance provided by an embodiment of the present application is shown. As Figure 5 shown, the control device 500 may include a processor 510 and a memory 520. The memory 520 may be used to store programs. The processor 510 may be used to call and run the programs stored in the memory 520, so that the control device 500 executes the methods described in the above method embodiments.

[0080] Optionally, in some embodiments, the control device 500 may further include a transceiver 530 for receiving information from other devices and / or sending information to other devices.

[0081] An embodiment of the present application further provides a human support appliance, including an airbag for providing a supporting force, and further including the control device for the human support appliance according to any of the above embodiments.

[0082] An embodiment of the present application further provides a chip, including a processor, which may be used to call and run a computer program from a memory, so that a device installed with the chip executes the methods described in the above method embodiments. It can be understood that the processor may be any type of processor. It can be understood that the memory may be independent of the chip or integrated in the chip.

[0083] An embodiment of the present application further provides a computer-readable storage medium for storing a program, and the program causes a computer to execute the methods in the various embodiments of the present application.

[0084] An embodiment of the present application further provides a computer program product. The computer program product includes a program, and the program causes a computer to execute the methods in the various embodiments of the present application.

[0085] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present disclosure are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a machine-readable storage medium or transmitted from one machine-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired manner (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or a wireless manner (such as infrared, wireless, microwave, etc.). The machine-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a Digital Video Disc (DVD)), or a semiconductor medium (such as a Solid State Disk (SSD)), etc.

[0086] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments of the present disclosure can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.

[0087] In several embodiments provided by the present disclosure, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in an electrical, mechanical, or other forms.

[0088] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or may be distributed over multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0089] In addition, each functional unit in various embodiments of the present disclosure may be integrated in a processing unit, may exist separately as individual physical units, or two or more units may be integrated in one unit.

[0090] As described above, the above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the appended claims.

Claims

1. A method for controlling a human body support device, the human body support device comprising an air bag for providing a supporting force, characterized in that: The method comprises: Obtaining the target air pressure and ambient temperature of the airbag; Correcting the target air pressure based on the ambient temperature to obtain a temperature-corrected air pressure; According to the temperature-corrected air pressure, a closed-loop control is performed on the actual air pressure of the airbag so that the actual air pressure of the airbag reaches the temperature-corrected air pressure, Wherein, the target air pressure corresponds to a reference temperature, when the ambient temperature is higher than the reference temperature, the temperature-corrected air pressure is lower than the target air pressure, and when the ambient temperature is lower than the reference temperature, the temperature-corrected air pressure is higher than the target air pressure.

2. The method according to claim 1, characterized in that The step of correcting the target air pressure based on the ambient temperature to obtain the temperature-corrected air pressure includes: When the ambient temperature is higher than the reference temperature by a first threshold, reducing the target air pressure to obtain the temperature-corrected air pressure; and In a case where the ambient temperature is lower than the reference temperature by a second threshold, the target air pressure is increased to obtain the temperature-corrected air pressure.

3. The method according to claim 1 or 2, characterized in that: The step of obtaining the target air pressure of the airbag comprises: Obtaining the set air pressure of the airbag and the historical usage time of the airbag set by the user of the human body supporting device; The set air pressure is increased according to the historical usage time of the airbag to obtain the target air pressure.

4. The method according to claim 3, characterized in that: The step of obtaining the air pressure set by the user of the human body supporting device for the airbag comprises: Acquiring historical usage data of the human body support device by the user; Based on the historical usage data of the user, the set air pressure of the airbag set by the user is obtained.

5. The method according to claim 3, characterized in that: The method further comprises: Determining the air-filling time of the air-bag according to the historical usage time of the air-bag; When the airbag reaches the set air pressure, the airbag is inflated for the inflating time; If the air pressure of the airbag after inflating is less than the target air pressure, it is determined that the airbag has aged and the airbag is inflated again.

6. A control device for a human body support device, the human body support device comprising an air bag for providing a supporting force, characterized in that: The control device comprises: An acquisition module, used for acquiring the target air pressure and ambient temperature of the airbag; A correction module, used for correcting the target air pressure based on the ambient temperature to obtain a temperature-corrected air pressure; The control module is used to perform closed-loop control on the actual air pressure of the airbag according to the temperature-corrected air pressure, so that the actual air pressure of the airbag reaches the temperature-corrected air pressure.

7. The device according to claim 6, characterized in that The target air pressure corresponds to a reference temperature, wherein the target air pressure is corrected based on the ambient temperature to obtain a temperature-corrected air pressure, comprising: When the ambient temperature is higher than the reference temperature by a first threshold, reducing the target air pressure to obtain the temperature-corrected air pressure, and In a case where the ambient temperature is lower than the reference temperature by a second threshold, the target air pressure is increased to obtain the temperature-corrected air pressure.

8. The device according to claim 6 or 7, characterized in that The step of obtaining the target air pressure of the airbag comprises: Obtaining the set air pressure of the airbag and the historical usage time of the airbag set by the user of the human body supporting device; The set air pressure is increased according to the historical usage time of the airbag to obtain the target air pressure.

9. A control device for a human body support device, the human body support device comprising an air bag for providing a supporting force, characterized in that: The control device comprises: Memory, used to store programs; A processor is used to call and run the program stored in the memory so that the control device executes the method according to any one of claims 1 to 5.

10. A human body support device, comprising an air bag for providing support force, characterized in that: The body support appliance further comprises a control device according to any one of claims 6 to 9.

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