CN108030646A - A kind of intelligent blind-guiding distance prompt device - Google Patents
A kind of intelligent blind-guiding distance prompt device Download PDFInfo
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- CN108030646A CN108030646A CN201711302933.6A CN201711302933A CN108030646A CN 108030646 A CN108030646 A CN 108030646A CN 201711302933 A CN201711302933 A CN 201711302933A CN 108030646 A CN108030646 A CN 108030646A
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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
- A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
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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
- A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
- A61H2003/063—Walking aids for blind persons with electronic detecting or guiding means with tactile perception
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- 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 present invention provides a kind of intelligent blind-guiding distance prompt device, MCU Main Processing Unit connection ultrasonic ranging unit, alarm and vibration prompt unit, obstacle distance voice alerting unit.Ultrasonic ranging unit carries out range measurement using ultrasonic echo bounce technique, sends the echo transition time to MCU, MCU calculates corresponding distance and is converted to text message, and obstacle distance voice alerting unit exports text message synthetic speech signal.When obstacle distance is less than given threshold, by alarm and vibration prompt unit is alerted and vibration prompt.The present invention realizes barrier in traveling voice distance is reported and buzzer alert prompts dual warning, aids in the timely and effective avoiding obstacles of simple walking stick energy, guide performance is stablized from the influence of surrounding environment illumination condition.Apparatus structure is simple, and component used is small, power consumptive province, can be transplanted in common walking stick or other equipment, and average price is cheap, there is preferable application prospect.
Description
Technical field
The present invention relates to a kind of intelligent blind-guiding distance prompt device, belongs to electronics guide equipment technical field.
Background technology
With the continuous progress of science and technology, more and more intelligent electronic devices have been entered in the life of people, to people
Life bring great convenience.There is blind communities most in the world in China, there are about 8,000,000 persons with visual disabilities, account for complete
15% or so of blind person's sum in the world.In addition, there be many yctalopia and amblyopia patient in China, such crowd's three-dimensional stereopsis lacks
Lose, also easily barrier, which is underestimated, in advancing at night causes adverse consequences.
At present, mainly there are the intelligent blind-guiding helmet, crutch etc. in intelligent blind-guiding field.Generally it is used as and is searched using infrared ray sensor
Rope equipment, voice prompt is provided for blind person.In traveling, the signal lamp on the helmet or crutch can accordingly be flickered according to direction, be given way
The passerby and vehicle walked pays attention to avoiding or provides corresponding help.Mounting ultrasonic sensor at the same time, detects barrier, and leads to
The teleinstruction for crossing guide platform realizes corresponding avoid.Guide platform is observed by connecting the wireless camera of the helmet or crutch
Real-time condition.Wireless camera can detect traffic information and check GPS positioning, and control crutch can be reached by remote-control facilities
Or the effect of helmet direction and track route.But when occur not accurate enough infrared detection or slope, stair etc. burst feelings
During condition, the intelligent blind-guiding helmet, crutch etc. can cause to be unable to reach expected effect under particular circumstances.
To sum up, there are following defect for existing intelligent helmet or intelligent blind guiding system：
1st, existing intelligent blind-guiding equipment depends on the support of the guide platform of concentration, and each helmet or walking stick are equivalent to one
Client also needs to be equipped with the first-class equipment of wireless camera, system is numerous and jumbled, expensive, it is necessary to the support of wireless communication system；
2nd, existing acousto-optic hint is the relatives or passerby for prompting patient, and trouble is worn for sufferers themselves；
3rd, in the case where surrounding environment is dark, rely on camera blind guiding system be possible to error even it is entirely ineffective.
4th, existing intelligent guiding walking stick for blind person and the helmet are only capable of providing barrier alarm, it is impossible to provide distance prompt.For eyesight
Handicapped person scholar, such as the patient of amblyopia and yctalopia, it is far from being enough, the 3 D stereo of amblyopia patient only to provide alarm signal
Sense is not strong, and far and near for barrier can not be differentiated well by naked eyes, therefore distance prompt just seems particularly necessary.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of it is simple in structure, performance is stable and can provide the intelligence of distance prompt
Can blind-guide device.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of intelligent blind-guiding distance prompt device,
It is characterized in that：Including MCU Main Processing Unit, ultrasonic ranging unit is connected with MCU Main Processing Unit, alarm and vibration prompt unit
It is connected with MCU Main Processing Unit, MCU Main Processing Unit is also connected with obstacle distance voice alerting unit.
Preferably, the ultrasonic ranging unit includes ultrasound transmitting transducer and ultrasonic wave receives transducer；MCU master
Control the ultrasonic wave transmitting module connection power amplifier module of unit, power amplifier module connection ultrasound transmitting transducer；Ultrasound
Ripple receives transducer connection echo processing module, Echo Processing module connection MCU Main Processing Unit.
It is highly preferred that the ultrasonic wave transmitting module output square-wave pulse signal of the MCU Main Processing Unit, square-wave pulse signal
Ultrasound transmitting transducer is then forwarded to after power amplification to be transmitted in air in the form of sound wave；Ultrasonic wave receives transducer and connects
Withdrawal ripple carries out conversion and becomes electric signal, this electric signal is amplified, is filtered, Shape correction, the echo transition time is sent
To MCU Main Processing Unit.
Further, the MCU Main Processing Unit asynthesis thing is apart from voice alerting unit, obstacle distance voice prompt
Unit connects power amplifier, power amplifier connection loudspeaker.
Further, the MCU Main Processing Unit calculates corresponding distance according to the echo transition time, and will be apart from letter
Breath is converted to text message；MCU Main Processing Unit sends control command by serial communication to obstacle distance voice alerting unit
And text message, obstacle distance voice alerting unit export the text message synthetic speech signal received, export signal
The voice prompt that obstacle distance is carried out by loudspeaker after power amplifier is amplified is reported.
Yet further, when obstacle distance is less than given threshold, alerted by alarm and vibration prompt unit
And vibration prompt.
Preferably, the alarm and vibration prompt unit use buzzer alert.
Preferably, the obstacle distance voice alerting unit uses integrated speech chip.
Preferably, the MCU Main Processing Unit is connected by A/D modules with ultrasonic ranging unit.
Preferably, the MCU Main Processing Unit by UART interface asynthesis thing apart from voice alerting unit.
Intelligent blind-guiding distance prompt device provided by the invention not only considers total blindness personage, it is also considered that arrived with yctalopia and
The crowd of amblyopia, compared with prior art, has the advantages that：
1st, ultrasonic ranging system realizes barrier in traveling voice distance from the influence of surrounding environment illumination condition
Report and buzzer alert prompts dual warning, aid in the timely and effective avoiding obstacles of simple walking stick energy, guide performance is stablized；
2nd, apparatus structure is simple, and component used is small, power consumptive province, can preferably be transplanted to common walking stick or other
In equipment, average price is cheap, there is preferable application prospect；
3rd, the present apparatus can not only be supplied to personage with visual disabilities, can also use, fit as the distance prompt of healthy personage
In promoting the use of.
Brief description of the drawings
Fig. 1 is intelligent blind-guiding distance prompt apparatus structure block diagram provided in this embodiment；
Fig. 2 is the fundamental diagram of ultrasonic ranging information speech broadcasting module.
Embodiment
With reference to specific embodiment, the present invention is further explained.
Fig. 1 is intelligent blind-guiding distance prompt apparatus structure block diagram provided in this embodiment, and the intelligent blind-guiding distance carries
Showing device mainly includes MCU Main Processing Unit, ultrasonic ranging unit, alarm and vibration prompt unit, obstacle distance voice carries
Show unit, ultrasonic ranging unit is connected with MCU Main Processing Unit, and alarm and vibration prompt unit are connected with MCU Main Processing Unit；
MCU Main Processing Unit is connected with obstacle distance voice alerting unit.
Wherein, MCU Main Processing Unit uses Arduino UNO controllers；Ultrasonic ranging unit is anti-using ultrasonic echo
Penetrate method (TOF methods) and carry out range measurement；Alarm and vibration prompt unit use buzzer alert.Obstacle distance voice prompt
Unit uses integrated speech chip SYN6288.
Arduino UNO controllers are connected by the A/D modules carried with ultrasonic ranging unit.Ultrasonic ranging unit
MCU to is sent the echo transition time by TOF methods, MCU calculates corresponding distance, and range information is converted to word
Information, voice signal is synthesized by SYN6288 integrated speech chip by text information, and carries out obstacle distance by loudspeaker
Voice prompt report.
In the present embodiment, the detection range of ultrasonic ranging unit is up to 5m.
Ultrasonic ranging unit includes ultrasound transmitting transducer and ultrasonic wave receives transducer, and MCU Main Processing Unit surpasses
Sound wave transmitting module connects power amplifier module, power amplifier module connection ultrasound transmitting transducer；Ultrasonic wave receives transducing
Device connects echo processing module, Echo Processing module connection MCU Main Processing Unit.
With reference to Fig. 2, ultrasonic ranging cell operation flow is as follows：Ultrasonic wave transmitting module is to allow ultrasonic wave transmitting to change
Energy device TCT40-16T can outwardly send the square-wave pulse signal of 40kHz or so.The P1.0 ports output of Arduino UNO
The square-wave pulse signal of 40kHz or so, since port output power is inadequate, 40kHz square-wave pulse signals are divided into two-way, give one
A push-pull circuit being made of 74HC04 carries out power amplification, to make transmitting range remote enough, meets measurement distance requirement；
Ultrasound transmitting transducer TCT40-16T is finally given to be transmitted in air in the form of sound wave.Ultrasonic wave receives transducer
TCT40-16R receives back wave (echo) and carries out conversion and become electric signal, and this electric signal is amplified, is filtered, shaping etc.
After processing, the integrated chip CX20106 produced using Sony is handled being received back ripple.
Integrated speech chip SYN6288 carries out phonetic synthesis.Pass through UART interface between MCU Main Processing Unit and SYN6288
Connection, receives text data to be synthesized, realizes the conversion of Text To Speech (TTS).MCU Main Processing Unit by serial communication to
SYN6288 sends control command and text, and SYN6288 is the Text-to-speech signal output received, and output signal is through work(
Rate amplifier is connected to loudspeaker after being amplified and plays out.
The above, be only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that for those skilled in the art, on the premise of the method for the present invention is not departed from, can also make
Some improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals pair according to the present invention
The variation, modification and evolution for any equivalent variations that above-described embodiment is made, still fall within the scope of technical scheme
It is interior.
Claims (10)
- A kind of 1. intelligent blind-guiding distance prompt device, it is characterised in that：Including MCU Main Processing Unit, ultrasonic ranging unit and MCU Main control unit connect, alarm and vibration prompt unit be connected with MCU Main Processing Unit, MCU Main Processing Unit also with obstacle distance language Sound prompt unit connects.
- A kind of 2. intelligent blind-guiding distance prompt device as claimed in claim 1, it is characterised in that：The ultrasonic ranging unit Transducer is received including ultrasound transmitting transducer and ultrasonic wave；The ultrasonic wave transmitting module connection power of MCU Main Processing Unit is put Big module, power amplifier module connection ultrasound transmitting transducer；Ultrasonic wave receives transducer connection echo processing module, echo Processing module connects MCU Main Processing Unit.
- A kind of 3. intelligent blind-guiding distance prompt device as claimed in claim 2, it is characterised in that：The MCU Main Processing Unit Ultrasonic wave transmitting module exports square-wave pulse signal, and square-wave pulse signal is then forwarded to ultrasonic wave transmitting transducing after power amplification Device is transmitted in air in the form of sound wave；Ultrasonic wave reception transducer reception echo carries out conversion and becomes electric signal, to this telecommunications Number it is amplified, filters, Shape correction, the echo transition time is sent to MCU Main Processing Unit.
- A kind of 4. intelligent blind-guiding distance prompt device as claimed in claim 3, it is characterised in that：The MCU Main Processing Unit connects Connect obstacle distance voice alerting unit, obstacle distance voice alerting unit connection power amplifier, power amplifier connection Loudspeaker.
- A kind of 5. intelligent blind-guiding distance prompt device as claimed in claim 4, it is characterised in that：The MCU Main Processing Unit root Corresponding distance is calculated according to the echo transition time, and range information is converted into text message；MCU Main Processing Unit passes through serial ports Communicate and send control command and text message to obstacle distance voice alerting unit, obstacle distance voice alerting unit handle connects Received text message synthetic speech signal output, output signal carry out obstacle after power amplifier is amplified by loudspeaker The voice prompt of thing distance is reported.
- A kind of 6. intelligent blind-guiding distance prompt device as claimed in claim 5, it is characterised in that：Set when obstacle distance is less than When determining threshold value, by alarm and vibration prompt unit is alerted and vibration prompt.
- A kind of 7. intelligent blind-guiding distance prompt device as claimed in claim 1, it is characterised in that：The alarm and vibration prompt Unit uses buzzer alert.
- A kind of 8. intelligent blind-guiding distance prompt device as claimed in claim 1, it is characterised in that：The obstacle distance voice Prompt unit uses integrated speech chip.
- A kind of 9. intelligent blind-guiding distance prompt device as claimed in claim 1, it is characterised in that：The MCU Main Processing Unit leads to A/D modules are crossed to be connected with ultrasonic ranging unit.
- A kind of 10. intelligent blind-guiding distance prompt device as described in claim 1 or 4, it is characterised in that：The MCU master controls list Member is by UART interface asynthesis thing apart from voice alerting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711302933.6A CN108030646A (en) | 2017-12-08 | 2017-12-08 | A kind of intelligent blind-guiding distance prompt device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302933.6A CN108030646A (en) | 2017-12-08 | 2017-12-08 | A kind of intelligent blind-guiding distance prompt device |
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| CN108030646A true CN108030646A (en) | 2018-05-15 |
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| CN201711302933.6A Pending CN108030646A (en) | 2017-12-08 | 2017-12-08 | A kind of intelligent blind-guiding distance prompt device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223463A (en) * | 2018-10-31 | 2019-01-18 | 安徽中科智链信息科技有限公司 | A kind of 3D blind-guide device and method based on TOF technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201591719U (en) * | 2010-01-14 | 2010-09-29 | 郑州大学 | Intelligent blind aid system and intelligent blind aid cane |
| CN202875751U (en) * | 2012-03-28 | 2013-04-17 | 德州学院 | Novel multifunctional ultrasonic wave blind-guiding device |
| CN103462786A (en) * | 2013-09-22 | 2013-12-25 | 江苏美伦影像***有限公司 | Man-machine interaction blind-guide instrument |
| CN105769517A (en) * | 2016-03-18 | 2016-07-20 | 杭州电子科技大学 | Multifunctional electronic walking stick for blind person |
| CN106667730A (en) * | 2015-11-06 | 2017-05-17 | 尤世元 | Intelligent blind guiding stick |
-
2017
- 2017-12-08 CN CN201711302933.6A patent/CN108030646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201591719U (en) * | 2010-01-14 | 2010-09-29 | 郑州大学 | Intelligent blind aid system and intelligent blind aid cane |
| CN202875751U (en) * | 2012-03-28 | 2013-04-17 | 德州学院 | Novel multifunctional ultrasonic wave blind-guiding device |
| CN103462786A (en) * | 2013-09-22 | 2013-12-25 | 江苏美伦影像***有限公司 | Man-machine interaction blind-guide instrument |
| CN106667730A (en) * | 2015-11-06 | 2017-05-17 | 尤世元 | Intelligent blind guiding stick |
| CN105769517A (en) * | 2016-03-18 | 2016-07-20 | 杭州电子科技大学 | Multifunctional electronic walking stick for blind person |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223463A (en) * | 2018-10-31 | 2019-01-18 | 安徽中科智链信息科技有限公司 | A kind of 3D blind-guide device and method based on TOF technology |
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Application publication date: 20180515 |
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