CN106420288A - Intelligent driving blind-guiding crutch - Google Patents
Intelligent driving blind-guiding crutch Download PDFInfo
- Publication number
- CN106420288A CN106420288A CN201610906986.8A CN201610906986A CN106420288A CN 106420288 A CN106420288 A CN 106420288A CN 201610906986 A CN201610906986 A CN 201610906986A CN 106420288 A CN106420288 A CN 106420288A
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- China
- Prior art keywords
- crutch
- chassis
- blind
- signal
- guide brick
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/068—Sticks for blind persons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0173—Means for preventing injuries
- A61H2201/0184—Means for preventing injuries by raising an alarm
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses an intelligent driving blind-guiding crutch which comprises a crutch bar (1), a handle (3) arranged at the top of the crutch bar (1), a Bluetooth earphone and a crutch base plate (2) arranged at the bottom of the crutch bar (1), wherein at least one ultrasonic sensor (4) is arranged on the crutch base plate (2); a signal control component is arranged in the crutch bar (1); the ultrasonic sensor (4) is in signal connection with the signal control component; and at least two supports (5) are arranged at the bottom of the crutch base plate (2). The intelligent driving blind-guiding crutch is simple, safe and popular to use, and has an excellent blind guiding effect.
Description
Technical field
The invention belongs to medical recovering aid apparatus technical field, more particularly to one kind can carry out day with assisting blind
Normal life activity and the intelligent active blind-guide brick of cognitive disorders thing.
Background technology
Now, China has become as the maximum country of blind number in the world, and blind number about has 5,000,000, in accounting for
4/1000ths of state's total population, in other words, inside 250 people, just have nearly 1 people to be blind.And the blind total people in the world
Number up to 30,000,000, blind has had become as the big disease in the world one.Now due to harmful trends such as job specification and living habit
Impact and make blind therefore expedited the emergence of many intelligent blind-guiding crutch in the world in the trend of becoming younger, but crutch on the market
All using infrared sensor, be merely able to detect this object that can actively produce heat of such as animal, people, encounter stone this
The abiotic of class is just felt simply helpless.There is part blind person can't buy this kind of instrument, it is not high to be primarily due to cost performance, price
Expensive.In addition《Curious laboratory》One phase blind person actual measurement was once done on the sidewalk for visually impaired people of the major trunk roads in Hangzhou, it is found that because
There is barrier on many sidewalk for visually impaired people, and blind person cannot identify, can lead to fall down.In sum, current blind person is in the urgent need to one kind
Can peripheral obstacle (inclusion inorganic matter) in front of intelligent initiative recognition to avoid in time, thus ensureing blind person's walking peace
Effective blind-guide brick entirely.
Content of the invention
The technical problem to be solved be to provide a kind of guide effect good, simply effectively, using safety and
Popular intelligent active blind-guide brick.
In order to solve above-mentioned technical problem, the present invention provides a kind of intelligence active blind-guide brick, including crutch bar, is arranged on
The handle in crutch masthead portion, also includes crutch chassis and the bluetooth earphone being arranged on crutch bar bottom；Set on described crutch chassis
It is equipped with least one ultrasonic sensor；It is provided with signal control assembly in described crutch bar；Described ultrasonic sensor and letter
Number control assembly signal is connected；The bottom on described crutch chassis is provided with least two supports.
Improvement as the intelligent active blind-guide brick of the present invention：Signal control assembly includes ultrasonic distance measuring module, letter
Number processor and wireless communication module, described signal processor respectively with ultrasonic distance measuring module, radio communication mold block signal phase
Even；
Described ultrasonic sensor is connected with ultrasonic distance measuring module signal；
Bluetooth earphone is connected with radio communication mold block signal.
Improvement further as the intelligent active blind-guide brick of the present invention：It is provided with power supply in described crutch bar, described
Power supply is electrically connected with ultrasonic sensor, button, ultrasonic distance measuring module, signal processor and wireless communication module respectively.
Improvement further as the intelligent active blind-guide brick of the present invention：The bottom on described crutch chassis is provided with four
Support；Described crutch chassis is square；Described four supports are separately positioned on four angles on crutch chassis.
Improvement further as the intelligent active blind-guide brick of the present invention：Be provided with described crutch chassis three ultrasonic
Wave sensor；Described three ultrasonic sensors are separately positioned on left front, dead ahead and the right front on crutch chassis,
It is arranged on the ultrasonic sensor of crutch chassis left front and the supersonic sensing being arranged on crutch chassis dead ahead
The centerlines of device are 50～70 ° (preferably 60 °)；
It is arranged on the ultrasonic sensor of crutch chassis right front and the supersonic sensing being arranged on crutch chassis dead ahead
The centerlines of device are 50～70 ° (preferably 60 °)；
The dead ahead on described crutch chassis refers to overlap in vertical direction with the centrage of handle, and points to and handle
The sensing of end is consistent.
Improvement further as the intelligent active blind-guide brick of the present invention：It is provided with button on described handle；Described press
Button is connected with signal processor.
Improvement further as the intelligent active blind-guide brick of the present invention：Contraction is provided with described crutch bar adjust
Device.
Improvement further as the intelligent active blind-guide brick of the present invention：Intelligent active blind-guide brick also includes vibrations and sends out
Raw device, described vibrations generator is connected with radio communication mold block signal.This vibrations generator for example can wearable on arm.
Improvement further as the intelligent active blind-guide brick of the present invention：Handle is hook handle.
The intelligent active blind-guide brick of the present invention has advantages below：Can different kind organism and abiotic etc. around Intelligent Recognition
Barrier, and adopt bluetooth earphone voice reminder user, ensure blind person's walking safety；If user also suffers from deafness,
Can be using vibrations generator vibration reminding.Therefore, the present invention is that one kind is vdiverse in function, using effect is good, simply effective, use
Safe and popular intelligent active blind-guide brick.
Brief description
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
Fig. 1 is that the overall structure diagram of the intelligent active blind-guide brick of the present invention (does not include bluetooth earphone and vibrations are sent out
Raw device).
Fig. 2 is the structural representation on the crutch chassis 2 in Fig. 1.
Fig. 3 is the structural representation of the vibrations generator 8 of the intelligent active blind-guide brick of the present invention.
Fig. 4 is the electrical block diagram of the intelligent active blind-guide brick of the present invention.
Specific embodiment
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This.
Embodiment 1, a kind of intelligence active blind-guide brick, as shown in figures 1-4；Including crutch bar 1, it is arranged on crutch bar 1 and pushes up
The handle 3 in portion, it is arranged on the crutch chassis 2 of crutch bar 1 bottom, also include ultrasonic sensor 4, vibrations generator 8 and bluetooth
Earphone；Handle 3 is arranged to hook.It is provided with power supply and signal control assembly, signal control assembly includes ultrasonic in crutch bar 1
Ripple range finder module 11, signal processor 12 and wireless communication module 13, signal processor 12 respectively with ultrasonic distance measuring module 11,
Wireless communication module 13 signal is connected.Power supply respectively with ultrasonic sensor 4, button 7, ultrasonic distance measuring module 11, signal at
Reason device 12 and wireless communication module 13 electrically connect.Ultrasonic sensor 4 is connected with ultrasonic distance measuring module 11 signal；Bluetooth ear
Machine, vibrations generator 8 are connected with wireless communication module 13 signal respectively.Bluetooth earphone, vibrations generator 8 are supplied by the power supply carrying
Electricity.
At least one ultrasonic sensor 4 is provided with crutch chassis 2, ultrasonic sensor 4 includes ultrasound probe,
Ultrasound probe energy detecting obstacles thing.On crutch chassis 2, three ultrasonic sensors 4 are set the most rationally, these three ultrasound wave
Sensor 4 is separately positioned on left front, dead ahead and the right front on crutch chassis 2.In two adjacent ultrasonic sensors 4
Heart wire clamp angle is 60 °, i.e. is arranged on the ultrasonic sensor 4 of crutch chassis 2 left front and is arranged on crutch chassis 2 dead ahead
The centerlines of ultrasonic sensor 4 be 60 °, be arranged on the ultrasonic sensor 4 of crutch chassis 2 right front and be arranged on
The centerlines of the ultrasonic sensor 4 of crutch chassis 2 dead ahead are 60 °.When so designing, on ultrasonic sensor 4
Ultrasound probe can recognize that the barrier of dead ahead, left front and right front, to ensure that this blind-guide brick can find completely
Barrier on user road to be walked.
The dead ahead on crutch chassis 2 refers to overlap in vertical direction with the centrage of handle 3, and points to and handle 3
The sensing of end is consistent.That is, handle 3 end just to direction and the ultrasonic sensor 4 being arranged on crutch chassis 2 dead ahead
Institute is identical to direction, blind person so can be facilitated to distinguish the direction of intelligent active blind-guide brick, it is to avoid using mistake.
The information that ultrasound probe collects is converted to electric signal transmission to ultrasonic distance measuring module by ultrasonic sensor 4
11, the signal of telecommunication is transferred to signal processor 12 after the range finding of ultrasonic distance measuring module 11 is processed, and signal processor 12 is by institute
Obtain comprises the distance of barrier, the information transfer in direction to wireless communication module 13, and signal is passed by wireless communication module 13
Pass bluetooth earphone and/or vibrations generator 8.
Crutch chassis 2 is square, one support 5 of each setting of difference on its four angles, so that when crutch uses more
Plus it is stable.Crutch bar 1 top is provided with handle 3, and this handle 3 adopts polyester microfiber material, allows user when perspiring on hand
Also can be comfortable on, and will not bacterial growth, cost is also comparatively more low, meets human engineering, allows user to use
Get up more comfortable.Button 7 is provided with handle 3, button 7 is connected with signal processor 12 signal；It is carved with braille on button 7,
Can be used to control the startup of the whole signal control assembly of the present invention to stop and adjust bluetooth earphone volume, vibrations generator
8 shockproofness；It is specially：By the control to power supply, thus realizing controlling the startup of whole signal control assembly to stop.
Contraction actuator 6 is provided with crutch bar 1, can freely adjust the length of stick stem 1, be available for the blind person of different heights
To use.Power supply is rechargable power supplies, and button 7 is used for controlling the switch of power supply, and power supply is ultrasonic sensor 4, button 7, super
Sound ranging module 11, signal processing module 12 and wireless communication module 13 provide and run required electric energy (for drawing neatly,
Do not mark power supply in figure).
In the present invention, the components and parts using are needed all can to obtain by the form such as commercial.For example：Ultrasonic ranging mould
Block 11 can purchase the HC-SR04 ultrasonic wave module sensor producing from arduino company；Signal processor 12 can be purchased certainly
Arduino UNO R3 (CH340G) that arduino company produces；Wireless communication module 13 can be purchased and produce from arduino company
BLE bluetooth 4.0 serial port module cc2540.
The actually used process of the present invention is as follows：
Press the button 7 on lower handle 3, button 7 switches on power, thus starting intelligent active blind-guide brick, supersonic sensing
The ultrasound probe of device 4 sends ultrasound examination barrier, and then ultrasonic sensor 4 is by the preceding object collecting thing information
It is converted into the signal of telecommunication and sends ultrasonic distance measuring module 11 to, preceding object thing information passes after ultrasonic distance measuring module 11 process
It is defeated by signal processing module 12, signal processing module 12 is then forwarded to after the process of the preceding object collecting thing information operation no
Line communication module 13, preceding object thing information transmission is sent prompt tone to user to bluetooth earphone by wireless communication module 13；
Meanwhile, preceding object thing information transmission is given vibrations generator 8 by wireless communication module 13, shakes generator 8 vibration prompting
User.
The actual specification of the present invention is for example：The long 70cm of crutch bar 1, a diameter of 2cm of support 5 on crutch chassis 2, crutch
Bar 1 passes through to shrink actuator 6 adjustable length (being divided into 4 grades, every grade of 5cm).
The present invention considers have part blind person not only blind, also deaf, therefore devises two intelligent active blind-guide brick,
A for " bluetooth sound type ", another money is " bluetooth vibration-type ".Two difference is：Bluetooth sound type is using bluetooth ear
Machine is being pointed out；But there is part blind person because deafness is it is impossible to hear prompting, and lead to bluetooth earphone to perform practically no function, then just
Bluetooth vibration-type can be used, bluetooth vibration-type is pointed out using vibrations generator 8.
Bluetooth sound type：When the ultrasonic sensor 4 being arranged on crutch finds that there is barrier left front, signal processing
Device 12 sends sounding instruction by wireless communication module 13, makes bluetooth earphone carry out sounding [for example：Left front (several centimetres)]；Work as the right side
When there is barrier in front, signal processor 12 sends sounding instruction by wireless communication module 13, makes bluetooth earphone carry out sounding
[for example：Right (several centimetres)]；If dead ahead has barrier, signal processor 12 sends sounding by wireless communication module 13 and refers to
Order, makes bluetooth earphone carry out sounding [for example：Before (several centimetres)].And during sounding reminding in any direction, different obstacle
Thing is also different for interval time apart from produced sounding twice：If could be arranged to from barrier only less than 20cm with a distance from
When, the interval of sounding only has 0.2 second twice, and from barrier also have with a distance from 50cm when, be separated with 0.5 second.
Bluetooth vibration-type：The present invention is provided with two wearable vibrations generators 8 on arm, shakes 8 points of generator
For a vibrations generator and No. two vibrations generators, a vibrations generator is contained in left arm, and No. two vibrations generators are then pacified
It is contained in right arm, braille prompting is provided with vibrations generator 8, the prompting mistake being led to avoiding dressing mistake.Work as peace
When the ultrasonic sensor 4 being contained in the present invention finds that there is barrier on the left side, signal processor 12 passes through wireless communication module 13
Send Bluetooth commands, make vibrations generator vibrations；When there is barrier on the right, signal processor 12 passes through radio communication mold
Block 13 sends Bluetooth commands, makes No. two vibrations generator vibrations；If dead ahead has barrier, signal processor 12 passes through channel radio
Letter module 13 sends Bluetooth commands, so that a vibrations generator is shaken with No. two vibrations generators simultaneously.And in any direction
Vibration reminding when, vibration frequency produced by different obstacle distances is also different：If could be arranged to only have from barrier
Less than 20cm apart from when, the interval shaken twice only has 0.2 second, and from barrier also have with a distance from 50cm when, be separated with 0.5
Second.The intensity of vibrations, can be adjusted by being carved with the button 7 of corresponding braille in crutch handle 3, very convenient.
Comparative example 1, the centerlines of adjacent two ultrasonic sensors 4 in embodiment 1 are 60 ° make into adjacent
The centerlines of two ultrasonic sensors 4 are 40 °, and remaining is equal to embodiment 1.Detection visual angle so can be led to inadequate
Big it is impossible to detect all barriers in face of user completely, lead to user cannot avoid the barrier running into thus
The negative consequence such as lead to user to be fallen down.
It is located at the ultrasonic sensor 4 of dead ahead, remaining is equal to embodiment 1 in comparative example 2, cancellation embodiment 1.So
This instrument can be led to cannot to detect the barrier of user dead ahead, lead to user cannot avoid the barrier running into thus
The negative consequence such as lead to user to be fallen down.
Comparative example 3, the hook handle in embodiment 1 is changed to cylindrical handle, remaining is equal to embodiment 1.So make
Which direction the dead ahead that user cannot rely on the handle fast resolution present invention is, in use more trouble it has not been convenient to
Hold during walking, and blind-guiding stick in the event of deviation nor is learnt when using, and leads to user cannot accurately avoid and runs into
Barrier thus the negative consequence such as lead to user to be fallen down.
Comparative example 4, the crutch chassis 2 cancelled in embodiment 1, ultrasonic sensor 4 is arranged on crutch bar 1, remaining etc.
It is same as embodiment 1.The distance of so adjacent ultrasonic sensor 4 can become very close to installing/dismounting inconvenience；Using guide
During cane walking, the vibrations of generation easily make the position of ultrasonic sensor 4 more originally produce deviation, and ultrasonic sensor 4
Easily it is damaged, lead to user cannot accurately avoid the barrier running into thus the negative consequence such as lead to user to be fallen down.
Finally it should be noted that：Various embodiments above is merely to illustrate technical scheme, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to signing each embodiment, it will be understood by those within the art that：Its according to
So front place can be modified at the technical scheme described in each embodiment, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from invention embodiment scheme
Scope.
Claims (9)
1. intelligent active blind-guide brick, including crutch bar (1), the handle (3) that is arranged on crutch bar (1) top it is characterised in that：
Also include bluetooth earphone and the crutch chassis (2) being arranged on crutch bar (1) bottom；Be provided with described crutch chassis (2) to
A few ultrasonic sensor (4)；It is provided with signal control assembly in described crutch bar (1)；Described ultrasonic sensor (4) with
Signal control assembly signal is connected；The bottom of described crutch chassis (2) is provided with least two supports (5).
2. intelligent active blind-guide brick according to claim 1 it is characterised in that：Described signal control assembly includes ultrasonic
Ripple range finder module (11), signal processor (12) and wireless communication module (13), described signal processor (12) respectively with ultrasonic
Ripple range finder module (11), wireless communication module (13) signal are connected；
Described ultrasonic sensor (4) is connected with ultrasonic distance measuring module (11) signal；
Bluetooth earphone is connected with wireless communication module (13) signal.
3. intelligent active blind-guide brick according to claim 2 it is characterised in that：
Be provided with power supply in described crutch bar (1), described power supply respectively with ultrasonic sensor (4), button (7), ultrasound
Away from the electrical connection of module (11), signal processor (12) and wireless communication module (13).
4. according to the arbitrary described intelligent active blind-guide brick of claims 1 to 3 it is characterised in that：Described crutch chassis (2)
Bottom is provided with four supports (5)；Described crutch chassis (2) is square；Described four supports (5) are separately positioned on crutch bottom
On four angles of disk (2).
5. according to the arbitrary described intelligent active blind-guide brick of claims 1 to 3 it is characterised in that：On described crutch chassis (2)
It is provided with three ultrasonic sensors (4)；Described three ultrasonic sensors (4) are separately positioned on the left front of crutch chassis (2)
Side, dead ahead and right front；
It is arranged on the ultrasonic sensor (4) of crutch chassis (2) left front and the ultrasound wave being arranged on crutch chassis (2) dead ahead
The centerlines of sensor (4) are 50～70 °；
It is arranged on the ultrasonic sensor (4) of crutch chassis (2) right front and the ultrasound wave being arranged on crutch chassis (2) dead ahead
The centerlines of sensor (4) are 50～70 °；
The dead ahead of described crutch chassis (2) refers to overlap in vertical direction with the centrage of handle (3), and points to and handss
The sensing of handle (3) end is consistent.
6. the intelligent active blind-guide brick according to Claims 2 or 3 it is characterised in that：Be provided with described handle (3) by
Button (7)；Described button (7) is connected with signal processor (12).
7. according to the arbitrary described intelligent active blind-guide brick of claims 1 to 3 it is characterised in that：Set on described crutch bar (1)
It is equipped with contraction actuator (6).
8. the intelligent active blind-guide brick according to Claims 2 or 3 it is characterised in that：Intelligent active blind-guide brick also wraps
Include vibrations generator (8), described vibrations generator (8) are connected with wireless communication module (13) signal.
9. intelligent active blind-guide brick according to claim 1 it is characterised in that：Described handle (3) is hook handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906986.8A CN106420288A (en) | 2016-10-19 | 2016-10-19 | Intelligent driving blind-guiding crutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906986.8A CN106420288A (en) | 2016-10-19 | 2016-10-19 | Intelligent driving blind-guiding crutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106420288A true CN106420288A (en) | 2017-02-22 |
Family
ID=58176011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610906986.8A Pending CN106420288A (en) | 2016-10-19 | 2016-10-19 | Intelligent driving blind-guiding crutch |
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| Country | Link |
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| CN (1) | CN106420288A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963604A (en) * | 2017-03-15 | 2017-07-21 | 武汉软件工程职业学院 | One kind automatically updates human-computer dialogue intelligent blind-guiding device |
| CN107064945A (en) * | 2017-05-22 | 2017-08-18 | 南宁学院 | A kind of oscillatory type Ultrasonic Range Finder for Parking |
| CN107898608A (en) * | 2017-12-28 | 2018-04-13 | 南京工程学院 | A kind of non-touching formula infrared induction guide-stick for blind people |
| CN109044745A (en) * | 2018-06-28 | 2018-12-21 | 中国人民解放军总医院第附属医院 | A kind of ultralight crutch of burn amputee |
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| CN104586614A (en) * | 2015-01-23 | 2015-05-06 | 温岭市太平高级职业中学 | Cavity/barrier detection walking stick for blind people |
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| CN105030489A (en) * | 2015-06-12 | 2015-11-11 | 南京信息职业技术学院 | Intelligent walking stick for blind person |
| CN206700370U (en) * | 2016-10-19 | 2017-12-05 | 张璟华 | Intelligent active blind-guide brick |
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| CN102385056A (en) * | 2011-08-11 | 2012-03-21 | 西北工业大学 | Blind-guidance anti-collision device based on multiple ultrasound sensors and control algorithm thereof |
| CN104586614A (en) * | 2015-01-23 | 2015-05-06 | 温岭市太平高级职业中学 | Cavity/barrier detection walking stick for blind people |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963604A (en) * | 2017-03-15 | 2017-07-21 | 武汉软件工程职业学院 | One kind automatically updates human-computer dialogue intelligent blind-guiding device |
| CN107064945A (en) * | 2017-05-22 | 2017-08-18 | 南宁学院 | A kind of oscillatory type Ultrasonic Range Finder for Parking |
| CN107898608A (en) * | 2017-12-28 | 2018-04-13 | 南京工程学院 | A kind of non-touching formula infrared induction guide-stick for blind people |
| CN109044745A (en) * | 2018-06-28 | 2018-12-21 | 中国人民解放军总医院第附属医院 | A kind of ultralight crutch of burn amputee |
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