CN204995686U - Tongue control system of wheelchair helps disabled - Google Patents

Tongue control system of wheelchair helps disabled Download PDF

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Publication number
CN204995686U
CN204995686U CN201520607679.0U CN201520607679U CN204995686U CN 204995686 U CN204995686 U CN 204995686U CN 201520607679 U CN201520607679 U CN 201520607679U CN 204995686 U CN204995686 U CN 204995686U
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China
Prior art keywords
tongue
signal
wheelchair
module
control system
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Expired - Fee Related
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CN201520607679.0U
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Chinese (zh)
Inventor
吴英
柏俊杰
张小云
刘宇
向毅
李斌
徐腾飞
何婷婷
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Chongqing University of Science and Technology
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Chongqing University of Science and Technology
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Abstract

The utility model provides a tongue control system of wheelchair helps disabled, include: sensing and detecting module, wireless transmission module, microprocessor and actuating mechanism, sensing and detecting module for detect the signal of the direction of motion of tongue, wireless transmission module for signal transmission to microprocessor with the direction of motion of tongue, microprocessor for handle the signal of the direction of motion of the tongue of wireless transmission module transmission and convert control signal to, send actuating mechanism with control signal simultaneously, actuating mechanism for according to received control signal, carry out the action corresponding with control signal. Utilize the utility model discloses, can further solve the problem that the paralysed patient of four limbs can't take care of oneself.

Description

Tongue control system of disabled-assisting wheelchair
Technical Field
The utility model relates to a tool technical field that rides instead of walk, more specifically relates to a tongue control system who helps disabled wheelchair.
Background
Statistically, the total number of the disabled people in the world exceeds 10 hundred million, which accounts for about 15 percent of the global population. The total number of the disabled people in China is 8502 ten thousand, wherein 2414 ten thousand people with disabled limbs are disabled. The disabled people are paralyzed in four limbs, the self-care ability of daily life is low, and the patients need to be nursed by family members or special nursing personnel, so that a lot of troubles are added to the families of the patients.
The problem of convenience of life of quadriplegia patients is very much appreciated in developed countries in the world, and various environmental control devices are continuously researched, so that the quadriplegia patients strive to enable the devices to be operated by using certain existing physical abilities of the patients to achieve or approach the ability of the healthy people to control equipment, such as drinking and eating, reading books, turning on and off household appliances, making a telephone call, watching a television, turning on and off a door, operating a computer, a wheelchair and the like. However, the quadriplegia patients still have great problems in life, so that the wheelchair needs to be improved to further improve the life quality of the patients.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a tongue control system for a wheelchair for disabled people, so as to further solve the problem that the quadriplegia patients cannot take care of their lives.
The utility model provides a tongue control system of a disabled-helping wheelchair, which comprises a sensing detection module, a wireless transmission module, a microprocessor and an actuating mechanism; wherein,
the sensing detection module is used for detecting signals of the motion direction of the tongue;
the wireless transmission module is used for transmitting the signal of the motion direction of the tongue to the microprocessor;
the microprocessor is used for processing and converting the signal of the motion direction of the tongue transmitted by the wireless transmission module into a control signal and transmitting the control signal to the actuating mechanism;
and the executing mechanism is used for executing the action corresponding to the control signal according to the received control signal.
According to the technical scheme above, the utility model provides a tongue control system and method of disabled person's wheelchair adopts the sensor of electric eddy current formula to detect the motion of tongue to signal conversion of the motion of tongue to the control signal of wheelchair through wireless communication module and microprocessor realizes the control of side-to-side movement around the wheelchair, thereby help disabled person to realize the self-care of certain degree.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a block diagram of a tongue control system of a wheelchair for disabled persons according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an experiment debugging process of a sensing detection module according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an experimental debugging process of a wireless transmission module according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a wireless transmission module according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a signal transmission subroutine according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of a signal receiving subroutine according to an embodiment of the present invention;
fig. 7 is a schematic diagram of pins of a liquid crystal display according to an embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a microprocessor according to an embodiment of the present invention;
fig. 9 is a schematic diagram of an actuator working flow according to an embodiment of the present invention;
fig. 10 is a schematic view of a wheelchair control flow according to an embodiment of the present invention.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
The utility model provides a tongue control system who helps disabled wheelchair plants a metal touch control ware that has the magnet on disabled person's tongue to aforementioned present quadriplegia patient still has very big problem in the life, the utility model provides a help disabled wheelchair's tongue control system, when the tongue motion, the sensor can catch the direction of motion of tongue and control the wheelchair to further improve quadriplegia patient's state of life and quality of life, establish the bridge between disabled person and the environment, make quadriplegia patient resume life self-care ability to different extents, can strengthen the confidence and the courage of his quadriplegia patient's life, improve their quality of life, alleviate its burden to the family.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to illustrate the structure of the tongue control system of the wheelchair for disabled people provided by the present invention, fig. 1 shows the structure of the tongue control system of the wheelchair for disabled people according to the embodiment of the present invention.
As shown in fig. 1, the tongue control system 100 of the wheelchair for disabled includes a sensing module 110, a wireless transmission module 120, a microprocessor 130 and an actuator 140; wherein,
the sensing detection module 110 is configured to detect a signal of a movement direction of the tongue and acquire the signal of the movement direction of the tongue;
the wireless transmission module 120 is used for transmitting the signal of the motion direction of the tongue to the microprocessor;
the microprocessor 130 is used for processing and converting the signal of the tongue movement direction transmitted by the wireless transmission module into a control signal and sending the control signal to the actuating mechanism;
the actuator 140 is configured to execute an action corresponding to the control signal according to the received control signal.
In the above logic structure of the tongue control system of the wheelchair for disabled people, how the wheelchair for disabled people is controlled by each structure of the system will be described in detail below, and fig. 2 to 10 exemplarily indicate the structure of the tongue control system of the wheelchair for disabled people from different angles, respectively.
Specifically, fig. 2 shows that according to the embodiment of the present invention, the sensing detection module experiment debugging process is performed, and in the embodiment shown in fig. 2, the sensing detection module (four capacitive proximity switches), a microprocessor and four LEDs are required during the process of the sensing detection module experiment debugging. Because the sensing detection module comprises four capacitive proximity switches (the sensors in the utility model are all capacitive proximity switches), in the experiment, the sensor module is connected with a microprocessor, wherein the microprocessor in the experiment debugging adopts an MSP430F149 chip, and the capacitive proximity switches comprise a sensitive element and a voltage divider circuit; four capacitanc proximity switch in the sensing detection module, when the sensing element in one of them capacitanc proximity switch detected metal signal (in the utility model discloses in, metal signal is exactly the signal of tongue motion), microprocessor control corresponds LED is bright to the demonstration detects metal signal, and wireless transmission module goes out the metal signal transmission who detects. The sensing element is an element that can sensitively sense a measured variable and respond thereto, and is a part of a sensor (in the present invention, referred to as a capacitive proximity switch) that can directly sense the measured variable.
Fig. 3 shows the experimental debugging process of the wireless transmission module according to the embodiment of the present invention, and in the embodiment shown in fig. 3, the wireless transmission module (transmitting terminal and receiving terminal), a microprocessor and a liquid crystal display are required in the experimental debugging process of the wireless transmission module. Since the wireless transmission module adopts an NRF24L01 chip, the microprocessor also adopts an MSP430F149 chip. The wireless transmission module comprises a transmitting end and a receiving end; the transmitting end transmits the metal signal detected by the sensor detection module to the receiving end, and after the receiving end receives the signal, the working states of the four capacitive proximity switches are displayed on the liquid crystal display under the control of the microprocessor.
It should be noted that, in the experimental debugging process, the four capacitive proximity switches respectively correspond to metal signals in the front, rear, left and right directions. When no metal signal is detected, the liquid crystal display displays that no signal exists in the four capacitive proximity switches; when one of the capacitive proximity switches detects a metal signal, the liquid crystal display displays a corresponding signal.
In the present invention, fig. 4 shows a pin structure of a wireless transmission module according to an embodiment of the present invention. The wireless transmission module uses NRF24L01, and NRF24L01 is a single-chip wireless transceiver chip working in the 2.4-2.5 GHz universal ISM frequency band. The NRF24L01 can work in an enhanced shock burst transceiving mode, so that the application of the monitoring field is influenced, in the enhanced shock burst transceiving mode, a first-in first-out stack area in a chip is used, data is sent from an MCU (single chip microcomputer) at low speed, but is transmitted at high speed (1Mbit/s), energy can be saved, a very high radio frequency data transmission rate is obtained under the condition of using low speed, and meanwhile, the average working current of the whole system is reduced.
As can be seen from the embodiments of fig. 2, 3 and 4, the transmitting end transmits the metal signal detected by the sensor detection module to the receiving end, and the receiving end receives the signal and displays the signal on the liquid crystal display. How the transmitting end transmits the metal signal to the receiving end and how the receiving end receives the wirelessly transmitted data and processes the data for display on the liquid crystal display will be described in detail below. Fig. 5 and fig. 6 show a signal transmission subroutine flow and a signal reception subroutine flow according to embodiments of the present invention, respectively.
In the embodiment shown in fig. 5, the signal sending subroutine is to send out the metal signal detected by the sensing module by wireless. Four sensors (capacitance type proximity switches) are connected with the low four bits of a P6 port of a single chip microcomputer (microprocessor), and when the sensors detect signals, the output is low level. Therefore, only the input state of the port P6 is extracted, which sensor has a signal can be known, and the state is sent out wirelessly.
Specifically, as shown in fig. 5, the specific flow of the signal transmission subroutine includes: s510: starting;
s520: wireless I/O initialization;
s530: configuring a wireless register;
s540: extracting the input state of a port P6;
s550: the input status of port P6 is transmitted, and the process returns to step S540 until all the input statuses of port P6 are transmitted.
In the embodiment shown in fig. 6, the signal reception subroutine always receives other data (output) transmitted wirelessly, and displays the data on the liquid crystal display after performing simple processing on the data. Specifically, as shown in fig. 6, the specific flow of the signal receiving subroutine includes:
s610: starting;
s620: wireless I/O initialization;
s630: configuring a wireless register;
s640: receiving other wirelessly transmitted data;
s650: and (5) processing and displaying the signals, and returning to the step (640) until all the received data are processed and displayed.
In summary, as can be seen from the embodiments shown in fig. 5 and fig. 6, the transmitting end sends out the metal signal detected by the sensor detection module through the signal sending subroutine; the receiving end receives the signal detected by the sensor detection module through the signal receiving subprogram, processes the received signal and displays the processed signal on the liquid crystal display.
In addition, in the working process of the wireless transmission module, after the receiving end receives the signal, the working states of the four capacitive proximity switches are displayed on the liquid crystal display. Fig. 7 shows according to the utility model discloses a pin of liquid crystal display, as shown in fig. 7, the utility model discloses a liquid crystal display be LCD12864.12864 liquid crystal graphic display, and this liquid crystal display can show letter, number symbol, chinese character type and figure, has drawing and characters and pictures and mixes the display function. The LCD provides three control interfaces, 8-bit microprocessor interface, 4-bit microprocessor interface and serial interface. All functions, including the display RAM and the font generator, are contained in one chip, and only a minimum micro-processing system is needed, so that the operation is convenient.
Fig. 8 shows a circuit structure of a microprocessor according to an embodiment of the present invention, as shown in fig. 8, the microprocessor employs an MSP430F149, the MSP430F149 is a new type of FLASH single chip microcomputer with 16-bit bus developed by texas corporation, it employs 16-bit bus, the peripheral and the memory are addressed uniformly, the addressing range can reach 64K, and it can also extend the memory, it has uniform interrupt management, it has abundant on-chip peripheral modules, there are precise hardware multiplier inside the chip, a 16-bit timer, a 14-way 12-bit analog-to-digital converter, a watchdog, 6-way P port, two-way USART communication port, a comparator, a DCO internal oscillator and two external clocks, it supports 8M clock convenient and practical, it can work in ultra-low power mode, the radiation to the environment and human body is small, the device is suitable for industrial-grade operation environment, and is suitable for automatic control equipment such as a handle.
Fig. 9 shows an actuator work flow according to an embodiment of the present invention, and in the embodiment shown in fig. 9, the actuator 140 includes a power supply battery 144, a left motor 142, a right motor 143, a driving module 141, and a voltage reduction module 145. The driving module 141 is used for driving the left motor 142 and the right motor 143 to move. And the voltage reduction module 145 is used for reducing the voltage of the power supply battery 144 for the microprocessor 130 to use.
Specifically, the power supply battery adopts a 7.4V lithium battery and supplies power to the left motor, the right motor and the microprocessor; the driving module adopts L298N and is used for driving two direct current speed reducing motors (a left motor and a right motor), and the voltage reducing module reduces the voltage of the lithium battery to 3.3V for the microprocessor to use. As shown in fig. 9, the microprocessor 130 processes the metal signal, converts the metal signal into a control signal of the wheelchair, and transmits the control signal to the driving module 141 of the actuator 140, and the driving module 141 drives the left motor 142 or the right motor 143 according to the received control signal.
In the present invention, as shown in fig. 9, the power supply battery 144 steps down the voltage to the voltage range required by the microprocessor 130 through the voltage step-down module 145, so as to provide the voltage for the microprocessor 130. The voltage reduction module 145 has the input voltage of 4.0-38V, the adjustable output voltage range of 1.25-36V is continuously adjustable, the output current can reach 5A, the output power can reach 75W, the conversion efficiency is high and can reach 96%, and the functions of overheat protection and short-circuit protection are achieved.
The execution mechanism executes corresponding actions through a wheelchair driving selection subprogram, the wheelchair driving selection subprogram selects the movement of the wheelchair according to the received data, four movement states of front, back, left and right are removed, and the wheelchair is always in a motor braking state at other times. Fig. 10 shows a wheelchair control flow according to an embodiment of the present invention, and as shown in fig. 10, the wheelchair control flow specifically includes: s001: starting;
s002: is the received data 0 bit 0? If Y, executing S003; if N, executing S004;
s003: advancing the wheelchair;
s004: is 1 bit of received data 0? If Y, executing S005; if N, execute S006;
s005: the wheelchair retreats;
s006: is received data 2 bits 0? If Y, then S007 is executed; if N, executing S008;
s007: turning the wheelchair to the left;
s008: is received data 3 bits 0? If Y, executing S009; if N, executing S010;
s009: the wheelchair turns right;
s010: braking the wheelchair;
s011: and (6) ending.
The aforesaid figures 1 to 10 have introduced each structure in tongue control system and this system of helping disabled wheelchair in detail, in addition, the utility model discloses still provide a tongue control principle who helps disabled wheelchair, the utility model provides a tongue control principle flow of helping disabled wheelchair controls the aforesaid tongue control system who helps disabled wheelchair, and wherein, this control principle includes:
s1110: detecting the movement of the tongue through four capacitive proximity switches of a sensing detection module to acquire a signal of the movement direction of the tongue;
s1120: the wireless transmission module transmits the signal of the motion direction of the tongue to the microprocessor;
s1130: the microprocessor judges and processes the signal of the movement direction of the tongue, converts the signal into a control signal of the wheelchair for the disabled, and sends the control signal to the execution mechanism;
s1140: the executing mechanism executes the action corresponding to the control signal according to the received control signal so as to realize the control of the movement of the disabled-assisting wheelchair.
Can find out through above-mentioned embodiment, the utility model provides a tongue control system of disabled person's wheelchair adopts sensor (capacitanc proximity switch) to detect the motion of tongue to convert the control signal of wheelchair with the signal conversion of the motion of tongue under wireless communication module and microprocessor's effect, realize around the wheelchair side-to-side motion control, thereby help the disabled person to realize the self-care of certain degree.
The tongue control system of the disability-aid wheelchair according to the present invention is described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the tongue control system of the wheelchair for disabled persons without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.

Claims (7)

1. A tongue control system of a disabled-assisting wheelchair comprises a sensing detection module, a wireless transmission module, a microprocessor and an execution mechanism; wherein,
the sensing detection module is used for detecting signals of the motion direction of the tongue;
the wireless transmission module is used for transmitting the signal of the motion direction of the tongue to the microprocessor;
the microprocessor is used for converting the signal of the motion direction of the tongue transmitted by the wireless transmission module into a control signal and sending the control signal to the actuating mechanism;
and the executing mechanism is used for executing the action corresponding to the control signal according to the received control signal.
2. A tongue control system for a disability-aid wheelchair in accordance with claim 1,
the sensing detection module comprises four capacitive proximity switches.
3. A tongue control system for a disability-aid wheelchair in accordance with claim 2,
the wireless transmission module adopts an NRF24L01 chip and comprises a transmitting end and a receiving end; wherein,
and the transmitting terminal transmits the signal detected by the sensor detection module to the receiving terminal.
4. A tongue control system for a wheelchair for disabled as claimed in claim 3, wherein the transmitting end transmits the signal detected by the sensor detecting module through a signal transmission subroutine.
5. A tongue control system for a wheelchair for disabled as claimed in claim 4, wherein the receiving end receives the signal detected by the sensor detection module through a signal receiving subroutine.
6. A tongue control system for a disability assistance wheelchair as claimed in claim 3,
the executing mechanism executes corresponding actions through a wheelchair drive selection subprogram, wherein the executing mechanism comprises a power supply battery, a left motor, a right motor, a driving module and a voltage reduction module; wherein,
the driving module is used for driving the left motor and the right motor to move;
and the voltage reduction module is used for reducing the voltage of the power supply battery and supplying power to the microprocessor.
7. A tongue control system for a disability assistance wheelchair as claimed in claim 6,
the input voltage of the voltage reduction module is 4.0-38V, the output voltage is 1.25-36V, the output current is 5A, and the output power is 75W.
CN201520607679.0U 2015-08-13 2015-08-13 Tongue control system of wheelchair helps disabled Expired - Fee Related CN204995686U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105125355A (en) * 2015-08-13 2015-12-09 重庆科技学院 Tongue control system and tongue control method for disabled-aid wheelchair
CN106648114A (en) * 2017-01-12 2017-05-10 长春大学 Interactive model of tongue machine and device
CN112043550A (en) * 2020-09-29 2020-12-08 深圳睿瀚医疗科技有限公司 Tongue control hand rehabilitation robot system based on magnetic markers and operation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105125355A (en) * 2015-08-13 2015-12-09 重庆科技学院 Tongue control system and tongue control method for disabled-aid wheelchair
CN106648114A (en) * 2017-01-12 2017-05-10 长春大学 Interactive model of tongue machine and device
CN106648114B (en) * 2017-01-12 2023-11-14 长春大学 Tongue machine interaction model and device
CN112043550A (en) * 2020-09-29 2020-12-08 深圳睿瀚医疗科技有限公司 Tongue control hand rehabilitation robot system based on magnetic markers and operation method thereof
CN112043550B (en) * 2020-09-29 2023-08-18 深圳睿瀚医疗科技有限公司 Tongue control hand rehabilitation robot system based on magnetic marks and operation method thereof

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Granted publication date: 20160127

Termination date: 20180813