CN208405288U - A kind of intelligent blind-guiding device - Google Patents
A kind of intelligent blind-guiding device Download PDFInfo
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- CN208405288U CN208405288U CN201721642097.1U CN201721642097U CN208405288U CN 208405288 U CN208405288 U CN 208405288U CN 201721642097 U CN201721642097 U CN 201721642097U CN 208405288 U CN208405288 U CN 208405288U
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Abstract
The utility model relates to a kind of intelligent blind-guiding device, it is the blind-guide device detection inaccuracy in order to solve the prior art, is easy the shortcomings that interfering with each other, and propose a kind of intelligent blind-guiding device, comprising: processor；The first infrared distance measurement unit being connect with the first test side of processor；The second infrared distance measurement unit being connect with the second test side of processor；The ultrasonic listening unit being connect with the third test side of processor；The vibration alarming unit being connect with the 4th test side of processor；The audio alert unit being connect with the 5th test side of processor.Ultrasound unit is fixed on the side of velcro, and can be fixed on the front of clothing by velcro, and the first infrared distance measurement unit and the second infrared distance measurement unit are separately fixed on the first wrist strap and the second wrist strap.The utility model is suitable for new Electronic Blind Navigation.
Description
Technical field
The present invention relates to a kind of electronics guide equipment, and in particular to a kind of intelligent blind-guiding device.
Background technique
China is the country that blind person's quantity is most in the world, and every annual meeting increases blind person more than 40 ten thousand newly.For as blind as a bat
Blind person can encounter bigger difficulty in terms of action.Traditional guide equipment, such as walking stick etc. can not accurately detect surrounding
Barrier, the range very little that can be detected.Also have in the prior art and setting for ultrasonic wave and laser detection barrier is used alone
It is standby, but these equipment can be inevitably present following problems:
If 1, will test equipment is placed on user front, it is difficult to detect the barrier of surrounding；
If 2, ultrasonic wave or laser detector will all be arranged around user, between laser or sound wave or phase
Mutually interference, the problem for causing accidentally to survey or testing result error is very big.
Therefore a kind of new blind-guide device is needed, to solve the defect of the prior art.
Summary of the invention
The purpose of the present invention is to solve the blind-guide device of prior art detection inaccuracy, and be easy to interfere with each other lacks
Point, and propose a kind of intelligent blind-guiding device, comprising:
First infrared distance measurement unit, the second infrared distance measurement unit, ultrasonic listening unit, vibration alarming unit, voice reporting
Alert unit, processor, velcro, the first wrist strap and the second wrist strap；Wherein, the first test side of processor and the first infrared survey
It is connected away from unit；Second test side of processor is connect with the second infrared distance measurement unit；The third test side of processor and ultrasound
The connection of wave probe unit；4th test side of processor is connect with vibration alarming unit；5th test side of processor and voice
Alarm unit connection；The ultrasound unit is fixed on the side of velcro, and clothing can be fixed on by velcro just
On face；The first infrared distance measurement unit is fixed on the first wrist strap, and the second infrared distance measurement unit is fixed on the second wrist strap
On.
The invention has the benefit that using ultrasonic wave and infrared distance measurement simultaneously, it is separately positioned on different with user
Position, can multi-faceted detection barrier, while two infrared distance measurement units are in the opposite direction, will not interfere with each other, inspection
It is more accurate to survey result.The device of the invention detects the barrier accuracy within 3 meters and at least improves 10% compared with prior art.
Detailed description of the invention
Fig. 1 is the system structure diagram of intelligent blind-guiding device of the invention；
Fig. 2 is the schematic diagram being fixed on velcro in specific embodiment two on clothing；
Fig. 3 is the schematic diagram being fixed on the first infrared distance measurement unit in specific embodiment three on first wrist strap；
Fig. 4 is the schematic diagram being fixed on the second infrared distance measurement unit in specific embodiment three on second wrist strap.
Specific embodiment
Specific embodiment 1: the intelligent blind-guiding device of present embodiment, as shown in Figure 1, comprising:
Processor 101；The first infrared distance measurement unit 102 being connect with the first test side of processor 102；With processor
Second infrared distance measurement unit 103 of 101 the second test side connection；The ultrasonic wave being connect with the third test side of processor 101
Probe unit 104；The vibration alarming unit 105 being connect with the 4th test side of processor 101；With the 5th inspection of processor 101
Survey the audio alert unit 106 of end connection.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: ultrasonic listening unit 104 is solid
It is scheduled on the side of velcro 109, and can be fixed on by velcro 109 on the front of clothing 110, as shown in Figure 2.Velcro
Also referred to as magic tape is common a kind of to be easy to be pasted onto the object on clothes being also easy to take off.The benefit being arranged in this way is,
It can neatly be attached on any clothes, to realize the identification of ultrasonic wave, not influence user and replace clothing.
The range measurement principle of present embodiment is that ultrasonic unit emits ultrasonic wave and receives reflection echo, passes through the two time
Poor t utilizes formula d=v0T/2 calculates distance, and d is ultrasonic transmission device at a distance from barrier；V0 is sound wave in medium
The rate v of middle propagation0=331.45 × (1+T/273.15)1/2, T is Celsius temperature.Investigative range is up to 4~500cm, detection
Angle is about 30 °, and resolution ratio reaches 1cm, and error is less than 1%, and detection range is logical by TTL mode and single-chip microcontroller in the form of digital quantity
Letter, therefore can satisfy detection accuracy completely.
Other steps and parameter are same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: the device of the invention is also
Including the first wrist strap 107 and the second wrist strap 108, the first infrared distance measurement unit 102 is fixed on the first wrist strap 107, and second is red
Outer distance measuring unit 103 is fixed on the second wrist strap 108.102 relationships such as Fig. 3 of first wrist strap 107 and the first infrared distance measurement unit
Shown, 103 relationships of the second wrist strap 108 and the second infrared distance measurement unit are as shown in Figure 4.
Present embodiment is detected using infrared distance sensor.The detector uses principle of triangulation, can measure dress
The distance (20~150cm) of barrier is set, 15 ° of search angle, distance is with analog output, after single-chip microcontroller a/d conversion, according to
Need to be arranged multiple range alarm.Two infrared distance measurement units of the invention and supersonic sounding unit will be each responsible for 3 directions
Detection.
Infrared distance sensor principle of triangulation: the basic principle of laser triangulation ranging is several based on plane trigonometry
What.Its method is irradiated on testee surface after allowing the emitted collimated of beam of laser, the light scattered by body surface
Line is converged on high-resolution photoelectricity testing part by receiving lens, forms a scattering hot spot, in the scattering hot spot
Heart position is determined by the distance between sensor and testee surface.And the electric signal and hot spot of photoelectricity testing part output
Center is related.Therefore, by electric signal that photoelectricity testing part is exported carry out calculation process be achieved with sensor with
The distance between testee surface information.In order to reach accurate focusing, emit light beam and photoelectricity testing part light-receiving surface with
And receiving lens plane must intersect at a point.
Infrared transmitter emits infrared beam according to certain angle, and after encountering object, light beam can be reflected.Instead
After the infrared light being emitted back towards is detected by photoinduction plate, a deviant l can be obtained, using triangle relation, is being aware of
After the focal length f of launch angle α, offset distance l, central moment x and filter, the distance d of sensor to object can be by several
What relationship d=fx/l is calculated.
Present embodiment is that wrist strap can be moved with hand using the benefit of wrist strap, and such user passes through activity
Hand can detect the position that surrounding is likely to occur barrier, and use is very flexible.It should be noted that if using this implementation
The wrist strap of mode, then wireless communication can be used in the communication of laser ranging unit and processor, if still using limited logical
Meeting is believed so that wiring is too long, is put on uncomfortable, is also easy to appear the problem of route fractures.It can be by using wireless communication
Meet short distance nothing since the laser ranging unit distance processor on wrist strap generally will not be too far in wireless near field communication
The required distance of line communication.Wireless communication chips at this time can select the MSP430 chip for supporting Zigbee protocol.It simultaneously can
Infrared distance sensor to be connect with ZigBee communication node, to realize wireless communication system.
Other steps and parameter are the same as one or two specific embodiments.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three: processor 101 is
STC12C5A60S2 single-chip microcontroller.
Other steps and parameter are identical as one of specific embodiment one to three.
Specific embodiment 5: unlike one of present embodiment and specific embodiment one to four: the first infrared survey
It is Sharp's GP2D12 infrared distance sensor away from unit 102 and the second infrared distance measurement unit 103.Ultrasonic listening unit
104 can select LM1812 chip.Vibration alarming unit can be common motor.
Other steps and parameter are identical as one of specific embodiment one to four.
Specific embodiment 6: unlike one of present embodiment and specific embodiment one to five: audio alert list
Member 106 is only wound WTN5085 speech chip.
Other steps and parameter are identical as one of specific embodiment one to five.
Specific embodiment 7: unlike one of present embodiment and specific embodiment one to six: velcro 109 is solid
It is scheduled at the position on clothing 110 apart from ground 1m.
Other steps and parameter are identical as one of specific embodiment one to six.
The present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, this field
Technical staff makes various corresponding changes and modifications in accordance with the present invention, but these corresponding changes and modifications all should belong to
The protection scope of the appended claims of the present invention.
Claims (5)
1. a kind of intelligent blind-guiding device characterized by comprising the first infrared distance measurement unit, the second infrared distance measurement unit, ultrasound
Wave probe unit, vibration alarming unit, audio alert unit, processor, velcro, the first wrist strap and the second wrist strap；Wherein,
First test side of processor is connect with the first infrared distance measurement unit；Second test side of processor and the second infrared distance measurement unit
Connection；The third test side of processor is connect with ultrasonic listening unit；4th test side of processor and vibration alarming unit
Connection；5th test side of processor is connect with audio alert unit；The ultrasonic listening unit is fixed on the one of velcro
Side, and can be fixed on the front of clothing by velcro；The first infrared distance measurement unit is fixed on the first wrist strap, institute
The second infrared distance measurement unit is stated to be fixed on the second wrist strap.
2. intelligent blind-guiding device according to claim 1, which is characterized in that the processor is STC12C5A60S2 monolithic
Machine.
3. intelligent blind-guiding device according to claim 2, which is characterized in that the first infrared distance measurement unit and second
Infrared distance measurement unit is Sharp's GP2D12 infrared distance sensor.
4. intelligent blind-guiding device according to claim 1, which is characterized in that the audio alert unit is only to create
WTN5085 speech chip.
5. intelligent blind-guiding device according to claim 1, which is characterized in that the velcro is with being fixed on clothing distance
At the position of face 1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721642097.1U CN208405288U (en) | 2017-11-30 | 2017-11-30 | A kind of intelligent blind-guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721642097.1U CN208405288U (en) | 2017-11-30 | 2017-11-30 | A kind of intelligent blind-guiding device |
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| Publication Number | Publication Date |
|---|---|
| CN208405288U true CN208405288U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721642097.1U Expired - Fee Related CN208405288U (en) | 2017-11-30 | 2017-11-30 | A kind of intelligent blind-guiding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464610A (en) * | 2019-07-29 | 2019-11-19 | 北京服装学院 | A kind of avoidance based on ultrasound clothes and barrier-avoiding method |
-
2017
- 2017-11-30 CN CN201721642097.1U patent/CN208405288U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464610A (en) * | 2019-07-29 | 2019-11-19 | 北京服装学院 | A kind of avoidance based on ultrasound clothes and barrier-avoiding method |
| CN110464610B (en) * | 2019-07-29 | 2022-03-01 | 北京服装学院 | Obstacle avoidance clothes based on ultrasonic waves and obstacle avoidance method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20191130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |