CN-122004620-A - Intelligent control system for back massage air bag of sofa backrest

CN122004620ACN 122004620 ACN122004620 ACN 122004620ACN-122004620-A

Abstract

The invention relates to the technical field of intelligent control systems of sofa massage air bags and discloses an intelligent control system of a sofa backrest back massage air bag, which comprises a main control module ‌, an air bag driving module ‌, a sensing module ‌, a gesture recognition and adjustment module, a user interaction module and an intelligent voice control module, wherein the air bag driving module comprises an air bag made of rubber, an air pump, an electromagnetic valve for controlling inflation and deflation and an air pressure sensor, and is mainly used for executing the actions of inflating and deflating the air bag to realize support and massage, the air bag driving module is connected with the air pump and the electromagnetic valve through an air pipe and is communicated with the main control module through a CAN bus, and customized massage aiming at different vertebra positions CAN be provided through the intelligent control system, so that comfort and massage effect of a sofa in use CAN be improved.

Inventors

Mu Dezheng
WU XIAOYUAN
WU CHANGJUN

Assignees

弗克思家居(南通)有限公司

Dates

Publication Date: 20260512
Application Date: 20260312

Claims (8)

1. The intelligent control system for the back massage air bag of the sofa backrest comprises a main control module ‌, an air bag driving module ‌, a sensing module ‌, an attitude identification and adjustment module, a user interaction module and an intelligent voice control module, and is characterized in that the air bag driving module comprises an air bag made of rubber, an air pump, an electromagnetic valve for controlling inflation and deflation and an air pressure sensor, and is mainly used for executing the inflation and deflation actions of the air bag to realize support and massage, and the air bag driving module is connected with the air pump and the electromagnetic valve through an air pipe and is communicated with the main control module through a CAN bus; The sensing module comprises a pressure sensor and a gesture sensor, wherein the pressure sensor is embedded in the back rest and the cushion of the sofa, the gesture sensor can be integrated on a back rest framework, and the sensing module is used for collecting pressure distribution and sitting posture change information of a user and transmitting data to the gesture recognition and adjustment module, ‌ The gesture recognition and adjustment module is integrated in the control module and is used for analyzing data acquired by the pressure sensor and the gesture sensor, recognizing the sitting gesture of the user, judging the massage requirement of the current gesture of the user, automatically adjusting the pressure distribution of the air bag to adapt to the back curve of the user and then sending an adjustment instruction to the air bag driving module; The user interaction module comprises a touch screen, an LED indicator lamp and a buzzer, is arranged on the sofa armrest, is convenient for a user to adjust massage modes, intensity and time parameters, is electrically connected with the main control module, receives user input and feeds back, and is ‌ The intelligent voice control module is embedded near the sofa armrest, is convenient for receive voice command, and controls massage mode, switch and adjusting intensity through voice command, the intelligent voice control module with main control module electric connection ‌.
2. The intelligent control system for the back massage airbag of the sofa backrest of claim 1, wherein the main control module comprises a microcontroller, a control circuit board and a power management unit, wherein the main control module is embedded in a control box at the bottom or at the side of the sofa for convenient maintenance and heat dissipation, and the main control module is used for receiving the data of the sensing module and sending a control command to the airbag driving module ‌.
3. The intelligent control system of the back massage airbag of the sofa backrest of claim 1, wherein the airbag of the airbag driving module adopts a regional independent control design, and comprises an upper back region, a middle back region and a lower back region, and the airbag of each region is connected with an air pump through an independent electromagnetic valve to realize accurate pressure adjustment aiming at different vertebra positions.
4. The intelligent control system of the back massage air bag of the sofa backrest of claim 1, wherein the air pressure sensor is an MEMS micro-pressure sensor, the precision reaches +/-0.5 kPa, the air pressure change in the air bag is monitored in real time, and data is fed back to the main control module through a CAN bus at a frequency of 100 Hz.
5. The intelligent control system of the sofa backrest back massage airbag as set forth in claim 1, wherein the gesture recognition and adjustment module automatically switches massage modes according to the sitting postures of the users: when the sitting posture is upright, a 'relaxing mode' is started, and the fluctuation frequency of the air bag pressure is 0.5Hz; When the sitting posture is tilted forwards, a supporting mode is started, and the pressure of the air bag is increased by 20% to fit the curve of the vertebra; when the user leans back to sit down, a 'relaxing mode' is started, the pressure of the air bag is reduced by 15 percent, and the air bag is matched with low-frequency vibration.
6. The intelligent control system of the sofa backrest back massage airbag of claim 1, wherein the touch screen of the user interaction module supports a gesture recognition function, a user can rapidly switch a massage mode through gestures such as sliding, clicking and the like, and the response time is less than or equal to 0.3 seconds ‌.
7. The intelligent control system for a sofa backrest back massage airbag as set forth in claim 1, wherein the power management unit of the main control module supports a standby mode, and when detecting that the user leaves the sofa for more than 5 minutes, the airbag driving module is automatically turned off, and the power consumption is reduced to 0.5W.
8. The intelligent control system of the back massage airbag of the sofa backrest of claim 1, wherein the LED indicator lamp is designed in RGB three colors, the massage state is fed back through color change, red is high-intensity massage, blue is medium-intensity massage, green is low-intensity massage, and flashing is fault alarm.

Description

Intelligent control system for back massage air bag of sofa backrest Technical Field The invention belongs to the technical field of intelligent control systems of sofa massage air bags, and particularly relates to an intelligent control system of a sofa backrest back massage air bag. Background The sofa is a multi-seat chair with soft cushions, is usually provided with a filler such as a spring, a sponge and the like and an armrest structure, and belongs to soft furniture. Modern sofa frames are mostly of solid wood or plate wood structures, and fillers comprise polyurethane foam, down and the like, and fabrics are divided into leather and cloth arts. The functions of the sofa can be divided into a low back sofa, a high back sofa and a common sofa. The modern life rhythm is accelerated, the problem of vertebra fatigue caused by sedentary office work or leisure entertainment is increasingly outstanding, and the traditional massage equipment has the pain points of single function, complex operation, incapability of dynamically adapting to the gesture of a user and the like. The existing sofa massage device mostly adopts an airbag or a mechanical structure in a fixed mode, lacks the sensing capability of real-time sitting postures and pressure distribution of users, leads to insufficient fitting degree of massage effect and human body curve, and is easy to cause overlarge local pressure or support failure. In addition, most products rely on manual adjustment, and the intelligent degree is low, and the massage strategy cannot be automatically optimized according to user behaviors. Therefore, we propose an intelligent control system for the back massage air bag of the sofa backrest. Disclosure of Invention The application aims to provide customized massage for different vertebra positions and improve comfort and massage effect of a sofa in use. The technical scheme adopted by the invention is as follows: The intelligent control system comprises a main control module ‌, an air bag driving module ‌, a sensing module ‌, a gesture recognition and adjustment module, a user interaction module and an intelligent voice control module, wherein the air bag driving module comprises an air bag made of rubber, an air pump, an electromagnetic valve for controlling inflation and deflation and an air pressure sensor, and is mainly used for executing the inflation and deflation actions of the air bag to realize support and massage, and the air bag driving module is connected with the air pump and the electromagnetic valve through an air pipe and is communicated with the main control module through a CAN bus; The sensing module comprises a pressure sensor and a gesture sensor, wherein the pressure sensor is embedded in the back rest and the cushion of the sofa, the gesture sensor can be integrated on a back rest framework, and the sensing module is used for collecting pressure distribution and sitting posture change information of a user and transmitting data to the gesture recognition and adjustment module, ‌ The gesture recognition and adjustment module is integrated in the control module and is used for analyzing data acquired by the pressure sensor and the gesture sensor, recognizing the sitting gesture of the user, judging the massage requirement of the current gesture of the user, automatically adjusting the pressure distribution of the air bag to adapt to the back curve of the user and then sending an adjustment instruction to the air bag driving module; The user interaction module comprises a touch screen, an LED indicator lamp and a buzzer, is arranged on the sofa armrest, is convenient for a user to adjust massage modes, intensity and time parameters, is electrically connected with the main control module, receives user input and feeds back, and is ‌ The intelligent voice control module is embedded near the sofa armrest, is convenient for receive voice command, and controls massage mode, switch and adjusting intensity through voice command, the intelligent voice control module with main control module electric connection. In a preferred mode of the invention, the main control module comprises a microcontroller, a control circuit board and a power management unit, the main control module is embedded in a control box at the bottom or at the side of the sofa, so that maintenance and heat dissipation are facilitated, and the main control module is used for receiving data of the sensing module and sending control instructions to the air bag driving module. In a preferred mode of the invention, the air bags of the air bag driving module are independently controlled by dividing regions, and comprise an upper back region, a middle back region and a lower back region, and the air bags of each region are connected with an air pump through independent electromagnetic valves to realize accurate pressure adjustment for different vertebra positions. In a preferred mode of the invention, the air pressure sensor is an MEMS micro-press