Intelligent active anti-rollover device for wheelchair

Abstract

The invention provides an intelligent active anti-rollover device for a wheelchair, which is mounted on the wheelchair and comprises an anti-rollover mechanical mechanism and an intelligent control system, the anti-rollover mechanical mechanism comprises a transmission rod, a connecting rod, a supporting beam, a supporting base and a supporting plate. The intelligent control system comprises a main controller module, a motor driving module, a gyroscope module, a steering engine module, a voice module, a display control module and a power management module. When the gyroscope module monitors that the inclination angle of the wheelchair exceeds a preset safe inclination angle threshold value, the main controller module intelligently and actively controls the supporting plate of the anti-rollover mechanical mechanism to be rapidly unfolded, auxiliary supporting is formed on the side face, about to be inclined, of the wheelchair, and the wheelchair is prevented from rollover. Meanwhile, the main controller module can give out a voice alarm by controlling the voice module to remind a user and surrounding people to pay attention to safety, send an emergency call signal to a preset emergency contact person or a service center and call for help to the surrounding people.

Description

Technical Field

[0001] The present invention relates to the technical field of wheelchairs, and in particular to an intelligent active anti-rollover device for a wheelchair. Background Art

[0002] As a means of transportation for people with disabilities and limited mobility, wheelchairs not only facilitate their daily life and work, but also allow them to exercise and even participate in sports such as competitive sports. However, most wheelchairs on the market currently only have basic mobility and anti-rollover functions, and few wheelchairs have anti-rollover functions. Moreover, they cannot intelligently and actively identify whether the wheelchair is about to roll over and prevent rollover accidents. Even when the user is using a wheelchair and the wheelchair rolls over, it cannot issue a voice prompt or alarm at the same time as the wheelchair is about to roll over to remind or warn the user or the surrounding people to pay attention to safety, which causes the wheelchair to roll over and even delays the best rescue time for the user, causing economic losses to individuals and society, affecting personal health, family harmony and social harmony. Summary of the invention

[0003] The present invention aims to solve the technical problem that a user can intelligently and actively identify and prevent the wheelchair from rolling over when using the wheelchair.

[0004] In order to solve the above problems, the present invention proposes an intelligent active anti-rollover device for a wheelchair, which is installed on the wheelchair and is characterized in that: it includes an anti-rollover mechanical mechanism and an intelligent control system; the anti-rollover mechanical mechanism includes a transmission rod, a connecting rod, a support beam, a support base and a support plate; the intelligent control system includes a main controller module, a motor drive module, a gyroscope module, a steering gear module, a voice module, a display and control module and a power management module. The gyroscope module can monitor the tilt angle of the wheelchair in real time to ensure that the data is accurate and reliable. When the gyroscope module detects that the tilt angle of the wheelchair exceeds the preset safe tilt angle threshold, the main controller module will intelligently and actively start the motor drive module, the motor drive module drives the steering gear to rotate, and then control the support plate of the anti-rollover mechanical mechanism to quickly unfold, forming an auxiliary support on the side of the wheelchair that is about to tilt, to prevent the wheelchair from rolling over. At the same time, the main controller module will send a voice alarm by controlling the voice module to remind the user and the surrounding people to pay attention to safety, and send an emergency call signal to the preset emergency contact or service center, and call for help from the surrounding people.

[0005] The beneficial effect of the intelligent active anti-rollover device for a wheelchair of the present invention is that it can intelligently identify the occurrence of a wheelchair rollover, actively open the anti-rollover mechanical mechanism to avoid the wheelchair rollover, and can simultaneously send out a voice alarm and a distress signal. The intelligent active anti-rollover device for a wheelchair of the present invention can not only ensure the balance of the wheelchair and improve the stability of the wheelchair during movement, but also the support capacity of the support plates on both sides is strong, which can effectively avoid tipping and improve the safety of the wheelchair when walking. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the composition of the present invention.

[0007] Figure 2 It is a schematic diagram of the composition decomposition of the present invention.

[0008] Figure 3 This is a block diagram of the logical function principle of the present invention.

[0009] Figure 4 It is a schematic diagram of the expansion of the support plate of the left side anti-rollover mechanical mechanism of the present invention.

[0010] Figure 5 It is a schematic diagram of the expansion of the support plate of the right side anti-rollover mechanical mechanism of the present invention. DETAILED DESCRIPTION

[0011] An intelligent active anti-rollover device for a wheelchair, such as Figure 1 and Figure 2 As shown, it is installed on the wheelchair 1, and is characterized by: comprising an anti-rollover mechanical mechanism 2 and an intelligent control system 3; the anti-rollover mechanical mechanism 2 comprises a transmission rod 201, a connecting rod 202, a support beam 203, a support base 204 and a support plate 205; the intelligent control system 3 comprises a main controller module 301, a motor drive module 302, a gyroscope module 303, a steering gear module 304, a voice module 305, a display and control module 306 and a power management module 307. The gyroscope module 303 can monitor the tilt angle of the wheelchair 1 in real time to ensure that the data is accurate and reliable. When the gyroscope module 303 detects that the tilt angle of the wheelchair 1 exceeds the preset safety tilt angle threshold, the main controller module 301 will actively start the motor drive module 302, and the motor drive module 302 drives the steering gear module 304 to rotate, thereby controlling the support plate 205 of the anti-rollover mechanical mechanism 2 to be quickly unfolded, forming an auxiliary support on the side of the wheelchair 1 that is about to tilt, to prevent the wheelchair 1 from rolling over. At the same time, the main controller module 301 controls the voice module 305 to issue a voice alarm to remind the user and surrounding people to pay attention to safety, and sends an emergency call signal to a preset emergency contact or service center, and calls for help from people around.

[0012] Figure 3It is a logic function principle block diagram of the present invention. The intelligent control system 3 integrates functions such as sensor data processing, logic judgment, and command sending to realize comprehensive monitoring and intelligent control of the wheelchair state. The power management module 307 supplies power to the motor drive module 302, and the main controller module 301 controls the motor drive module 302, the voice module 305, and the display control module 306. The display control module 306 is provided with a power button, a human-computer interaction screen, and an indicator light. The voice module 305 is provided with a voice control panel and a speaker. The motor drive module 302 drives the steering gear module 304 and the wheelchair 1. The steering gear module 304 is connected to the transmission rod 201 by gear meshing. The steering gear module 304 drives the anti-rollover mechanical mechanism 2. The anti-rollover mechanical mechanism 2 drives the connecting rod 202 to move through the transmission rod 201. The connecting rod 202 drives the support base 204 to move, and the support base 204 drives the support plate 205 to unfold and retract. The transmission rod 201 is connected to the connecting rod 202 through a transmission shaft 206, and the support beam 203 is connected to the support plate 205 by a hinge 207. After the support plate 205 is unfolded, it can effectively increase the lateral support force of the wheelchair 1 and improve the overall stability. The support base 204 is connected to the support plate 205 by a transmission shaft 206, and a limiter is provided on the support base 204 to ensure that the support plate 205 can respond accurately and can be accurately unfolded.

[0013] The intelligent control program of the intelligent control system 3 can read the data of the sensor on the gyroscope module 303 in real time, then remove the gyroscope data noise to ensure data quality, calculate the tilt angle of the wheelchair 1 according to the gyroscope data, and then determine whether the tilt angle is greater than the safety threshold. The tilt angle safety threshold is generally set to 10︒. If the tilt angle of the wheelchair 1 is greater than the safety threshold, the main controller module 301 will control the motor drive module 302, the motor drive module 302 drives the steering gear module 304 on the corresponding tilted side of the wheelchair, and the steering gear module 304 drives the anti-rollover mechanical mechanism 2. The anti-rollover mechanical mechanism 2 drives the connecting rod 202 to move through the transmission rod 201, and the connecting rod 202 drives the support base 204 to move, and the support base 204 pushes the support plate 205 to rotate to a specified angle, such as Figure 4 and Figure 5 As shown, Figure 4 This is a schematic diagram of the support plate 205 of the left side anti-rollover mechanical mechanism 2 of the present invention. Figure 5 The figure is a schematic diagram of the support plate 205 of the right anti-rollover mechanism 2 of the present invention. When the wheelchair 1 rolls over, the intelligent control system 3 will issue a voice alarm to remind the user and the surrounding people to pay attention to safety. If the tilt angle of the wheelchair 1 rolls over is greater than 30°, the intelligent control system 3 will send an emergency call signal to the preset emergency contact or service center, and call for help from the surrounding people.

[0014] Intelligent control system 3 also supports user-defined safety parameters, such as tilt angle threshold, emergency contact information, etc., to meet the personalized needs of different users.

Claims

1. An intelligent active anti-rollover device for a wheelchair, mounted on a wheelchair (1), characterized in that: The invention comprises an anti-rollover mechanical mechanism (2) and an intelligent control system (3); the anti-rollover mechanical mechanism (2) comprises a transmission rod (201), a connecting rod (202), a support beam (203), a support base (204) and a support plate (205); and the intelligent control system (3) comprises a main controller module (301), a motor drive module (302), a gyroscope module (303), a steering gear module (304), a voice module (305), a display control module (306) and a power management module (307).

2. The intelligent active anti-rollover device for a wheelchair according to claim 1, characterized in that: The steering gear module (304) is connected to the transmission rod (201) by means of gear meshing, and the steering gear module (304) drives the connecting rod (202) to move via the transmission rod (201), thereby controlling the deployment and folding of the support plate (205).

3. The intelligent active anti-rollover device for a wheelchair according to claim 1, characterized in that: The transmission rod (201) and the connecting rod (202) are connected via a transmission shaft (206).

4. The intelligent active anti-rollover device for a wheelchair according to claim 1, characterized in that: The support beam (203) and the support plate (205) are connected by a hinge (207).

5. The intelligent active anti-rollover device for a wheelchair according to claim 1, characterized in that: The support base (204) and the support plate (205) are connected by a transmission shaft (206).

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