CN201389159Y - Portable intelligent blind guiding instrument - Google Patents
Portable intelligent blind guiding instrument Download PDFInfo
- Publication number
- CN201389159Y CN201389159Y CN200920115729U CN200920115729U CN201389159Y CN 201389159 Y CN201389159 Y CN 201389159Y CN 200920115729 U CN200920115729 U CN 200920115729U CN 200920115729 U CN200920115729 U CN 200920115729U CN 201389159 Y CN201389159 Y CN 201389159Y
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- Prior art keywords
- ultrasonic
- microcontroller
- blind guiding
- guiding instrument
- portable intelligent
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- Expired - Fee Related
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Abstract
The utility model discloses a blind guiding instrument, in particular to a portable intelligent blind guiding instrument, which comprises a shell body, the blind guiding instrument is characterized in that a clamping button, a headphone jack and a key-press are arranged on the shell body, wherein an ultrasonic transmitting-and-receiving part is arranged in the shell body, the ultrasonic transmitting-and-receiving part comprises a microcontroller, an ultrasonic transmitter, an ultrasonic receiver, an ultrasonic transmitting drive circuit and a signal amplifying circuit, the output end of the microcontroller is orderly connected with the ultrasonic transmitting drive circuit and the ultrasonic transmitter, the input end of the microcontroller is orderly connected with a variable gain signal amplifying circuit and the ultrasonic receiver. The blind guiding instrument is conveniently carried, simply operated, and can be matched with a blind guiding stick.
Description
Technical field
This utility model relates to a kind of apparatus for guiding blind, especially a kind of portable intelligent apparatus for guiding blind.
Background technology
Existing guide equipment can only provide information such as " there is barrier in the place ahead ", " left has barrier " usually, prompting message is too single, at some in the narrow or complex environment constantly prompting barrier be arranged, make the people at a loss as to what to do, and can't obtain distance, the shape information of barrier by prompting message.Adopt the blind-guide device of ultrasound emission usually to utilize gate circuit directly to drive ultrasonic launching head, usually need on ultrasonic launching head, apply the alternating voltage of tens of volts, and circuit voltage generally has only several volts, causes emissive porwer less, the telemeasurement difficulty.
As Chinese patent 90108200.7 disclosed a kind of " torch-like blind man's guider with scale lanquage ", its difference by scale changes profile and the distance of representing object, " 1 represents 5 meters of obstacle distances " " 2 represent 4.5 meters " as seen its resolution is 50 centimetres, such resolution can only be done substantially the profile of object and understand, and then can't differentiate for tiny object at all; And it can only use separately, and the common blind-guiding stick that can't be familiar with the blind person and be accustomed to using is plugged into.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of easy to carry, simple to operate, portable intelligent apparatus for guiding blind that can be used with blind-guiding stick.
The technical scheme that this utility model addresses the above problem is: this apparatus for guiding blind comprises housing, and its construction features is that described housing is provided with buckle, earphone jack, button, is provided with the ultrasonic emitting receiving-member in the housing; This ultrasonic emitting receiving-member is made up of microcontroller, ultrasonic transmitter, ultrasonic receiver, ultrasonic emitting drive circuit, signal amplification circuit, the outfan of microcontroller links to each other with ultrasonic emitting drive circuit, ultrasonic transmitter successively, and the input of microcontroller links to each other with variable-gain signal amplification circuit, ultrasonic receiver successively.
Signal amplification circuit described in the utility model is the variable-gain signal amplification circuit.
This utility model compared with prior art, have following beneficial effect: 1, prompting mode is various, can be voice signal, continuous variable audio signal or continuous variable vibration signal, and cue resolution is higher, at 10 centimetres and following, can in the actual environment of complexity, give the blind person prompting; 2, housing is provided with buckle, and apparatus for guiding blind can use separately, also can be used with blind-guiding stick.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the control block diagram of this utility model embodiment.
Fig. 3 is the circuit diagram of ultrasonic emitting drive circuit.
The specific embodiment
Referring to Fig. 1, present embodiment comprises housing 4, and housing 4 is provided with buckle 1, earphone jack 2, button 3, is provided with the ultrasonic emitting receiving-member in the housing 4.Buckle 1 is used for being connected use with common blind-guiding stick, and earphone jack 2 is used to connect earphone.
Referring to Fig. 2, this ultrasonic emitting receiving-member is made up of microcontroller, ultrasonic transmitter, ultrasonic receiver, ultrasonic emitting drive circuit, variable-gain signal amplification circuit, the outfan of microcontroller links to each other with ultrasonic emitting drive circuit, ultrasonic transmitter successively, and the input of microcontroller links to each other with variable-gain signal amplification circuit, ultrasonic receiver successively.
Microprocessor controls ultrasonic emitting drive circuit drives ultrasonic transmitter and launches ultrasonic pulse, and ultrasonic pulse is reflected after running into barrier, and ultrasonic receiver receives behind the echo through the variable-gain signal amplification circuit, and then is transferred to microcontroller.Microcontroller is handled the signal that collects, microcontroller is discerned the user automatically and whether is connected earphone, as connect earphone then by the acoustical signal prompting, send voice signal or continuous variable audio signal according to mode of operation, otherwise remind the blind person by the continuous variable vibration signal.
The ultrasonic emitting drive circuit as shown in Figure 3, it adopts transformator to boost, and makes the transformator copy produce high voltage, produces resonance in conjunction with resistance-capacitance circuit simultaneously, produces the needed high pressure sinusoidal signal of ultrasonic launching head.The signal of the ultrasonic echo of long-distance barrier deposits yields is very weak, need nearly ten thousand times amplification, yet closely the signal of the ultrasonic echo of barrier generation is relatively large again, the amplification that needs is less relatively, therefore amplification be according to barrier apart from dynamic change, microcontroller need be to the signal amplification circuit control that gains.
Claims (2)
1, a kind of portable intelligent apparatus for guiding blind comprises housing, it is characterized in that: described housing is provided with buckle, earphone jack, button, is provided with the ultrasonic emitting receiving-member in the housing; This ultrasonic emitting receiving-member is made up of microcontroller, ultrasonic transmitter, ultrasonic receiver, ultrasonic emitting drive circuit, signal amplification circuit, the outfan of microcontroller links to each other with ultrasonic emitting drive circuit, ultrasonic transmitter successively, and the input of microcontroller links to each other with variable-gain signal amplification circuit, ultrasonic receiver successively.
2, portable intelligent apparatus for guiding blind according to claim 1 is characterized in that: described signal amplification circuit is the variable-gain signal amplification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920115729U CN201389159Y (en) | 2009-03-19 | 2009-03-19 | Portable intelligent blind guiding instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920115729U CN201389159Y (en) | 2009-03-19 | 2009-03-19 | Portable intelligent blind guiding instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201389159Y true CN201389159Y (en) | 2010-01-27 |
Family
ID=41595974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920115729U Expired - Fee Related CN201389159Y (en) | 2009-03-19 | 2009-03-19 | Portable intelligent blind guiding instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201389159Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961213A (en) * | 2012-11-05 | 2013-03-13 | 柴永斌 | Blind person environment perception method and blind person environment perception system |
| CN103735393A (en) * | 2013-12-27 | 2014-04-23 | 朱寰 | Human-computer interaction intelligent blind-guide instrument |
| CN105182286A (en) * | 2015-10-09 | 2015-12-23 | 北京长城电子装备有限责任公司 | Sonar guiding escape rescue system |
-
2009
- 2009-03-19 CN CN200920115729U patent/CN201389159Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961213A (en) * | 2012-11-05 | 2013-03-13 | 柴永斌 | Blind person environment perception method and blind person environment perception system |
| CN103735393A (en) * | 2013-12-27 | 2014-04-23 | 朱寰 | Human-computer interaction intelligent blind-guide instrument |
| CN105182286A (en) * | 2015-10-09 | 2015-12-23 | 北京长城电子装备有限责任公司 | Sonar guiding escape rescue system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20110319 |