阅读说明：本技术 一种基于语音识别技术的老年人生活辅助设备 (Old person's life auxiliary assembly based on speech recognition technology ) 是由 丁毓峰 冉冬东 李纬 李兆亮 于 2020-12-19 设计创作，主要内容包括：一种基于语音识别技术的老年人生活辅助设备,包括靠背、坐垫、行走机构、升降机构、超声波测距传感器、语音识别系统；行走机构包括下底盘,下底盘下部设置有四个滚轮,后方滚轮处设置有直流电机；升降机构包括上底盘、连接上底盘和下底盘的平行四边形升降单元体以及步进电动推杆；坐垫一侧安装在一根连接轴上,通过设置在上底盘处的步进电机及联动的齿轮从而驱动坐垫上下转动；语音识别系统安装在所述下底盘下部或上底盘下部,其包括电源、语音识别模块、单片机、语音合成模块；所述超声波测距传感器安装在下底盘前部,并连接所述单片机。本发明通过单片机、语音识别模块对设备的其他模块进行控制,对设备进行智能管理,可在如厕和行走方面助老。(An old people life auxiliary device based on a voice recognition technology comprises a backrest, a cushion, a walking mechanism, a lifting mechanism, an ultrasonic distance measuring sensor and a voice recognition system; the traveling mechanism comprises a lower chassis, four rollers are arranged at the lower part of the lower chassis, and a direct current motor is arranged at the rear roller; the lifting mechanism comprises an upper chassis, a parallelogram lifting unit body connecting the upper chassis and the lower chassis and a stepping electric push rod; one side of the cushion is arranged on a connecting shaft, and the cushion is driven to rotate up and down through a stepping motor arranged at the upper chassis and a linked gear; the voice recognition system is arranged on the lower part of the lower chassis or the lower part of the upper chassis and comprises a power supply, a voice recognition module, a singlechip and a voice synthesis module; the ultrasonic ranging sensor is arranged on the front part of the lower chassis and is connected with the single chip microcomputer. The intelligent management system controls other modules of the equipment through the single chip microcomputer and the voice recognition module, intelligently manages the equipment, and can help the elderly to go to the toilet and walk.)

1. The utility model provides an old person's life auxiliary assembly based on speech recognition technology, includes back, cushion, its characterized in that: the system also comprises a traveling mechanism, a lifting mechanism, an ultrasonic ranging sensor and a voice recognition system; wherein the content of the first and second substances,

the travelling mechanism comprises a lower chassis, four rollers are arranged at the front and rear four corners of the lower part of the lower chassis, and a direct current motor for driving the rollers is arranged at the rear rollers;

the lifting mechanism comprises an upper chassis, a parallelogram lifting unit body and a stepping electric push rod; the upper part of the parallelogram lifting units is connected with the upper chassis, and the lower part of the parallelogram lifting units is connected with the lower chassis; the device comprises a parallelogram lifting unit body, at least two stepping electric push rods, a stepping motor, a power supply and a control unit, wherein the number of the stepping electric push rods is at least two, the stepping electric push rods are arranged at the position of the parallelogram lifting unit body, the upper part of the stepping electric push rods is connected with the upper end of the parallelogram lifting unit body, the lower part of the stepping electric push rods is connected with the lower end of the parallelogram lifting unit body;

one side of the cushion is arranged on a connecting shaft, driven gears are arranged at two ends of the connecting shaft and are meshed with a driving gear arranged at the lower part of the upper chassis, the driving gear is connected with a stepping motor arranged at the lower part of the upper chassis, and the driving gear, the driven gears and the connecting shaft are driven by the stepping motor to drive the cushion to rotate up and down;

the voice recognition system is arranged on the lower part of the lower chassis or the lower part of the upper chassis and comprises a power supply, a voice recognition module, a single chip microcomputer and a voice synthesis module, wherein the single chip microcomputer is used for controlling the direct current motor, the stepping electric push rod and the stepping motor;

the ultrasonic ranging sensor is arranged on the front part of the lower chassis and is connected with the single chip microcomputer.

2. The device for assisting the life of the elderly based on the voice recognition technology as claimed in claim 1, wherein: the parallelogram lifting unit body is a two-stage parallelogram mechanism, namely an upper parallelogram structure and a lower parallelogram structure which are connected together are formed by arranging connecting rods.

3. The device for assisting the life of the elderly based on the voice recognition technology as claimed in claim 1, wherein: the corresponding parts of the middle parts of the cushion, the upper chassis and the lower chassis are hollowed out.

4. The device for assisting the life of the elderly based on the voice recognition technology as claimed in claim 1, wherein: the rotary handrails are installed on the left side and the right side of the upper chassis and are installed through rotary hinges and locked through automatic spring bolts.

5. The device for assisting the life of the elderly based on the voice recognition technology as claimed in claim 1, wherein: and a pull rod mechanism is arranged at the backrest, so that manual stretching or contraction can be realized.

6. The device for assisting the life of the elderly based on the voice recognition technology as claimed in claim 1, wherein: the speed of the roller is different through the difference of the rotating speeds of the direct current motors, and the steering of the equipment is realized.

7. The device for assisting the life of the elderly based on the voice recognition technology as claimed in claim 1, wherein: the two rollers in front of the lower part of the lower chassis are provided with braking mechanisms.

Technical Field

The invention relates to the field of life auxiliary equipment, in particular to old people life auxiliary equipment based on a voice recognition technology.

Background

With the aging problem of the population in China becoming more and more serious, the number of the elderly population is increasing. With the increase of age, the old often has the condition of inconvenient legs and feet, sometimes it is difficult to complete some simple actions such as bending down, squatting and the like, which brings great challenges to the basic life of the old because some basic life activities such as toileting and walking are difficult to complete.

At present, the domestic and foreign life auxiliary equipment for the old with safety, practicability and functionality is very few, humanized service cannot be provided for the old, and diversified and multi-level old care service requirements of the old cannot be effectively met. Wherein, the toilet and walking of the old are two major problems. Although the prior auxiliary design for helping the old people go to the toilet and walk at home and abroad, the device has single function and is not combined with artificial intelligence, and the old people have difficulty in operating the device independently.

Disclosure of Invention

The invention aims to solve the defects of the prior art, provides the auxiliary equipment for the life of the old people based on the voice recognition technology, applies an innovative design concept, comprehensively applies a product combination innovative technology and method, the voice recognition technology and an automatic control technology, controls other modules of the equipment through a singlechip voice module, intelligently manages the equipment, and can help the old people to go to the toilet and walk.

In order to realize the purpose, the invention is realized by the following technical scheme:

an old people life auxiliary device based on a voice recognition technology comprises a backrest, a seat cushion, a walking mechanism, a lifting mechanism, an ultrasonic distance measuring sensor and a voice recognition system; wherein the content of the first and second substances,

the travelling mechanism comprises a lower chassis, four rollers are arranged at the front and rear four corners of the lower part of the lower chassis, and a direct current motor for driving the rollers is arranged at the rear rollers;

the lifting mechanism comprises an upper chassis, a parallelogram lifting unit body and a stepping electric push rod; the upper part of the parallelogram lifting units is connected with the upper chassis, and the lower part of the parallelogram lifting units is connected with the lower chassis; the device comprises a parallelogram lifting unit body, at least two stepping electric push rods, a stepping motor, a power supply and a control unit, wherein the number of the stepping electric push rods is at least two, the stepping electric push rods are arranged at the position of the parallelogram lifting unit body, the upper part of the stepping electric push rods is connected with the upper end of the parallelogram lifting unit body, the lower part of the stepping electric push rods is connected with the lower end of the parallelogram lifting unit body;

one side of the cushion is arranged on a connecting shaft, driven gears are arranged at two ends of the connecting shaft and are meshed with a driving gear arranged at the lower part of the upper chassis, the driving gear is connected with a stepping motor arranged at the lower part of the upper chassis, and the driving gear, the driven gears and the connecting shaft are driven by the stepping motor to drive the cushion to rotate up and down;

the voice recognition system is arranged on the lower part of the lower chassis or the lower part of the upper chassis and comprises a power supply, a voice recognition module, a single chip microcomputer and a voice synthesis module, wherein the single chip microcomputer is used for controlling the direct current motor, the stepping electric push rod and the stepping motor;

the ultrasonic ranging sensor is arranged on the front part of the lower chassis and is connected with the single chip microcomputer.

Furthermore, the parallelogram lifting unit body is a two-stage parallelogram mechanism, namely an upper parallelogram structure and a lower parallelogram structure which are connected together are formed by arranging connecting rods.

Furthermore, the corresponding parts of the middle parts of the cushion, the upper chassis and the lower chassis are hollowed out.

Furthermore, the left side and the right side of the upper chassis are provided with rotating handrails, and the rotating handrails are installed through rotating hinges and locked by automatic spring bolts.

Furthermore, a pull rod mechanism is arranged at the backrest, so that manual stretching or contraction can be realized.

Furthermore, the speed of the roller is different through the difference of the rotating speeds of the direct current motors, and the steering of the equipment is realized.

Furthermore, the two rollers in front of the lower part of the lower chassis are provided with braking mechanisms.

The invention has the beneficial effects that:

the old people living auxiliary equipment based on the voice recognition technology is combined with the voice recognition technology, and a singlechip voice module is utilized to research and realize the old people living auxiliary equipment, so that the old people can be helped to solve the living problems in the aspects of toileting and walking, the equipment is developed towards the intelligent direction, and the reliability and the use value of the equipment are improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a flow chart of speech recognition according to the present invention;

FIG. 3 is a schematic circuit diagram of a control system according to the present invention;

FIG. 4 is a schematic view of a traveling mechanism according to the present invention;

FIG. 5 is a schematic view of the lift mechanism of the present invention;

fig. 6 is a schematic view of a rotary cushion mechanism of the present invention;

FIG. 7 is a schematic view of a rotary armrest mechanism according to the present invention;

FIG. 8 is a schematic view of a pull rod back mechanism of the present invention;

in the figure: 100-running gear, 200-lifting gear, 300-rotating cushion gear, 400-rotating armrest gear, 500-pull rod backrest gear, 600-ultrasonic distance measuring sensor, 1-direct current motor A, 2-direct current motor B, 3-coupler A, 4-coupler B, 5-rear wheel A, 6-rear wheel B, 7-front wheel, 8-brake gear, 9-lower chassis, 10-stepping electric push rod, 11-parallelogram lifting unit body, 12-stepping motor, 13-upper chassis, 14-gear A fender bracket, 15-gear B fender bracket, 16-gear A, 17-gear B, 18-connecting shaft, 19-cushion, 20-armrest, 21-rotating hinge, 22-automatic spring bolt, 23-backrest, 24-telescopic pull rod, 25-pull rod button, 26 connecting rod, 27 upper vertex stud, 28 lower vertex stud, 29 upper central point stud and 30 lower central point stud.

Detailed Description

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1, an embodiment of the present invention provides a voice recognition technology-based elderly living assistance device, which mainly includes a walking mechanism 100, a lifting mechanism 200, a rotating cushion mechanism 300, a rotating armrest mechanism 400, a pull rod backrest mechanism 500, an ultrasonic distance measuring sensor 600, and a voice recognition system, where the voice recognition system includes a power supply, a voice recognition module, an STM32 single chip microcomputer, and a voice synthesis module, where the voice recognition module is preferably LD3320, and the voice synthesis module is preferably SYN 6288. The voice recognition system may be provided in the traveling mechanism 100 or the elevating mechanism 200, which is not shown in the drawing.

The working mode of the voice recognition module is set to be a first-level password mode, namely, the next-level recognition can be carried out after a set first-level password is required to be spoken during each recognition. The subsequent operation can be carried out after the equipment is awakened, so that the influence of garbage vocabulary on the working condition of the equipment is reduced. After the module identifies the voice of a user, preprocessing and extraction of voice features are carried out firstly, matching is carried out in a keyword library stored in advance, the voice is converted into a text, the voice input is realized, information is transmitted to the STM32 single chip microcomputer through serial port communication with the STM32 single chip microcomputer, the STM32 single chip microcomputer controls equipment, and the voice control of the equipment is started from this. The speech synthesis module is communicated with the STM32 single chip microcomputer through a serial port and is externally connected with a loudspeaker to convert texts into sound and realize speech output. When the equipment recognizes the voice command of the user and then prepares to operate, the STM32 single chip microcomputer can control the voice synthesis module to output the voice of the action name, and the voice reminding function is provided for the old.

Preferably, a 24V power supply is used as a main power supply of the equipment, 24V voltage is provided for the direct current motor A1, the direct current motor B2, the stepping electric push rod 10 and the stepping motor 12, then the 24V voltage is reduced to 5V by arranging a voltage reduction module and is provided for the voice recognition module, the voice synthesis module and the ultrasonic distance measurement sensor 600, and then the 5V voltage is reduced to 3.3V by 5V and is provided for the STM32 single chip microcomputer.

The traveling mechanism 100, the lifting mechanism 200 and the rotary cushion structure 300 are automatically controlled by a voice recognition system, and the rotary armrest mechanism 400 and the pull rod backrest mechanism 500 are manually operated by a user.

As shown in fig. 4, the traveling mechanism 100 includes a lower chassis 9, a dc motor a1, a dc motor B2, a coupling A3, a coupling B4, a rear wheel a5, a rear wheel B6, a front wheel 7, and a brake mechanism 8, and adopts a rear drive mode. The direct current motor A1 and the direct current motor B2 are fixed on the lower chassis 9, are respectively connected with the coupler A3 and the coupler B4, drive the rear wheel A5 and the rear wheel B6 to move, and achieve advancing and retreating, and the speeds of the rear wheel A5 and the rear wheel B6 are different through the difference of the rotating speeds of the direct current motor A1 and the direct current motor B2, so that steering of the equipment is achieved. The front wheel 7 plays a role of auxiliary supporting equipment and is provided with a braking mechanism 8, the braking mechanism 8 comprises a spring piece and a pedal, and the spring piece and the pedal are positioned in a foot-stepping mode, similar to the working principle of a common brake caster wheel, and the equipment can be stopped at a specific position.

As shown in fig. 5, the lifting mechanism 200 includes an upper chassis 13, a stepping electric putter 10, and two sets of parallelogram lifting units 11. Parallelogram lift cell cube 11 comprises two link mechanism, two parallelogram structure about link mechanism links together through seven connecting rods 26 and forms, and two link mechanism's upper portion summits are connected through last summit stud 27, and the lower part summit is connected through lower summit stud 28, and the upper portion central point passes through last central point stud 29 and connects, and the lower part central point passes through central point stud 30 and connects down, step-by-step electric putter 10 lower extreme fixed mounting is under on central point stud 30, and upper end fixed mounting is on last central point stud 29, and promotion and the shrink action by step-by-step electric putter 10 drive elevating system 200 motion. The parallelogram lifting unit bodies 11 are symmetrically distributed, so that the stability of the equipment is improved.

As shown in fig. 6, the rotary seat cushion mechanism 300 includes a stepping motor 12, a gear a guard 14, a gear B guard 15, a gear a16, a gear B17, a connecting shaft 18, and a seat cushion 19. Cushion 19 fixed mounting is on connecting axle 18, connecting axle 18 both ends fixed mounting has gear B17 as driven gear, go up on the chassis 13 and install two step motor 12 corresponding to gear B17, fixed mounting has gear A16 as the driving gear on step motor 12's the output shaft, gear A16 and gear B17 mesh. The stepping motor 12 outputs a rotary driving gear A16 to drive the seat cushion 19 to rotate through the gear B17 and the connecting shaft 18. The gear A16 outside is provided with gear A fender bracket 14, gear B17 outside is provided with gear B fender bracket 15, avoids the gear and user's contact, protection user's safety.

As shown in fig. 7, the rotary armrest mechanism 400 includes an armrest 20, a rotary hinge 21, and an automatic sprung latch 22. Under the action of the rotating hinge 21, the user can manually rotate the armrest 20 to a vertical position above the upper chassis 13, and then lock it by the automatic spring latch 22 to be fixed. When the equipment is stored after being used up, a user can unlock the automatic spring bolt 22, rotate the handrail 20 to the vertical position below the upper chassis 13 and approach the parallelogram lifting unit body 11, so that the occupied space of the equipment is reduced, the storage of the user is facilitated, and the folding function of the equipment is realized.

As shown in fig. 8, the lever back mechanism 500 includes a back 23, a telescopic lever 24, and a lever button 25. The backrest 23 is fixedly arranged at the highest stage of the telescopic pull rod 24 and can move along with the telescopic pull rod 24. After the user presses the pull rod button 25, the vertical movement direction of the pull rod button 25 is changed into the horizontal movement of the lock catch, the user can make the telescopic pull rod 24 rise or fall manually, and the backrest 23 is also driven. When the equipment is stored after being used up, a user can press the pull rod button 25 to lower the telescopic pull rod 24 to the lowest position, and then the backrest 23 is also lowered to the lowest position, so that the storage space of the equipment is saved.

Preferably, the speech recognition system of the present invention is disposed at the bottom of the lower chassis 9, lowering the center of gravity of the present invention as a whole.

Different controls are performed according to the working state of the equipment. The equipment has five states which are respectively as follows: folding state, squatting auxiliary state, toileting auxiliary state, walking auxiliary state and standing auxiliary state. And (3) analyzing by combining the working state flow of the equipment:

(1) folding state: the brake mechanism 8 is acted, the equipment can not move, the stepping electric push rod 10 is at the lowest working position, the handrail 20 is at the vertical position below the upper chassis 13 and close to the parallelogram lifting unit body 11, the telescopic pull rod 24 is in the contraction state, and the backrest 23 is lowered to the lowest point.

(2) Squatting assistance state: the user manually rotates the armrest 20 to a vertical position above the upper chassis 13 and locks it with the automatic spring latch 22, presses the pull rod button 25 to raise the telescopic pull rod 24 to the uppermost position, and the backrest 23 serves to support the back of the person. A user sends a voice command of a squatting assisting state to the equipment, the voice recognition module transmits information to the STM32 single chip microcomputer after recognizing the voice command of the user, the STM32 single chip microcomputer controls the stepping electric push rod 10 to extend to a limit value, and the lifting mechanism 200 is located at the highest point; the output rotating speed of the stepping motor 12 is controlled to drive the cushion 19 to rotate for a certain angle, so that the user can support the squatting pan conveniently.

(3) Toilet assisting state: the user sends like the voice command of lavatory auxiliary status to equipment, and after the voice command of user was discerned to the speech recognition module, give STM32 singlechip through serial ports communication transmission information, STM32 singlechip control step motor 12 rotates, makes it laminate and goes up chassis 13, simultaneously, control step-by-step electric putter 10 and shorten the certain distance, and equipment descends to a certain position, and the user of being convenient for is like the lavatory.

(4) A walking assisting state: and (3) the defecation assisting state is equal in priority level and is converted from the squatting assisting state, and the specific situation is controlled by a user. By the auxiliary state of squatting descend to a certain position, the supplementary user walking, and accessible speech recognition system controlgear with (3) like the lavatory auxiliary state switch, be convenient for deal with different actual conditions. After the locking of the braking mechanism 8 is released, the working mode of the auxiliary walking of the equipment can be divided into an artificial control mode and an automatic obstacle avoidance mode. A manual control mode, in which a user manually controls the traveling mechanism 100 to advance, retreat, turn left, turn right, and stop through different voice commands; the automatic obstacle avoidance mode, namely the automatic obstacle avoidance mode that the user opened equipment through voice command, the perception of external environment is fed back to STM32 singlechip through ultrasonic ranging sensor 600 to equipment, is controlled running gear 100 by STM32 again.

(5) A standing assistance state: after the user finishes using the toilet or walking, the user can enter a standing auxiliary state through the voice recognition system control device, the stepping electric push rod 10 extends, the lifting mechanism 200 rises to the highest point, and the stepping motor 12 outputs the rotating speed to drive the cushion 19 to rotate to the position convenient for the user to stand.

After the user finishes the standing action, the user can control the stepping electric push rod 10 to descend and the stepping motor 12 to rotate through voice, so that the states of the lifting mechanism 200 and the rotating cushion mechanism 300 are changed, the rotating armrest mechanism 400 and the pull rod backrest mechanism 500 are manually operated to be folded, and the equipment finishes a work flow from the standing auxiliary state to the folded state. Equipment is at the in-process of operation, before accomplishing every action, STM32 single chip microcomputer control speech synthesis module output corresponding action's pronunciation, accomplishes the pronunciation and reminds the function, provides very big convenience for the old person. The invention can assist the old people to stand and sit through rotating the cushion 19, has lower gravity center compared with the common equipment for integrally overturning, and can effectively ensure that the equipment can not integrally overturn because of losing the gravity center when the old people stands or sits down, so that the old people are injured.

The present invention has been described above by way of example, but the present invention is not limited to the above-described specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.