CN201164538Y - Walking sticks with guiding function - Google Patents
Walking sticks with guiding function Download PDFInfo
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- CN201164538Y CN201164538Y CNU2008200050161U CN200820005016U CN201164538Y CN 201164538 Y CN201164538 Y CN 201164538Y CN U2008200050161 U CNU2008200050161 U CN U2008200050161U CN 200820005016 U CN200820005016 U CN 200820005016U CN 201164538 Y CN201164538 Y CN 201164538Y
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Abstract
The utility model relates to a blind guiding cane, in particular to a cane with the function of guiding. The cane comprises a cane body, a handle arranged at the top end of the cane body and a guiding system, wherein, the guiding system comprises a data processing module, a guiding module and an alarm module, and the guiding module and the alarm module are respectively connected with the data processing module; the guiding module comprises a magnetic field sensor unit, a signal regulating unit and a signal processing unit; the signal regulating unit amplifies signals output by the magnetic field sensor unit, and transmits the signals to the data processing module after a deflection angle is calculated by the signal processing unit. Detected azimuth signals are transmitted to the data processing module by the guiding module of the cane, and corresponding alarm indication signals are sent out according to the current azimuth of the cane, thereby bringing great convenience to the trip of the blind.
Description
Technical field
This utility model relates to a kind of blind guiding stick, particularly a kind of walking stick with guide function.
Background technology
The blind person needs society to give them more care and treatment as a specific group in the society, and they can better be lived on one's own life.How safety is walked, and is problem maximum in the blindman.The tradition blind person uses the walking stick function singleness, visit ground by hand-held walking stick point, can only when touching barrier, just can know the road surface situation, and can't distinguish and know the present located direction, the blind person is difficult to differentiate direction for unfamiliar highway section when trip, often brought a lot of inconvenience, in addition, traditional blind person uses the walking stick function singleness, visit ground by hand-held walking stick point, can only when touching barrier, just can know the road surface situation, not have predictive ability, make troubles to blind person's trip for barrier.
The utility model content
This utility model has overcome above-mentioned shortcoming, and a kind of safe walking stick with guide function simple in structure, easy to use is provided.
The technical scheme in the invention for solving the technical problem is: a kind of walking stick with guide function, comprise the cane body and be arranged on the vertical handle of cane body, also comprise the guidance system that is arranged in cane body or the handle, described guidance system comprises data processing module and the oriented module and the alarm module that link to each other with described data processing module respectively, described oriented module comprises magnetic field sensor unit, signal adjustment unit and signal processing unit, send into described signal processing unit after the signal amplification of described signal adjustment unit with described magnetic field sensor unit output, after described signal processing unit calculates deflection angle, send to described data processing module.
Described signal adjustment unit can comprise two groups of differential amplifiers that are connected described magnetic field sensor outfan.
It is the two-dimensional magnetic field pick off of KMZ52 that described magnetic field sensor can adopt model.
Also can comprise the wireless signal transmitting module, the wireless signal receiver module that link to each other with described data processing module respectively in the described guidance system.
Described wireless signal transmitting module and wireless signal receiver module can be respectively ultrasonic emitting module and ultrasound wave receiver module.
Described alarm module can comprise the sound circuit that links to each other with described data processing module.
Described ultrasonic emitting module can comprise multivibrator, drive circuit and the ultrasonic transducer that connects successively.
Described ultrasound wave receiver module can comprise ultrasonic transducer, signal amplification circuit and the voltage shaping circuit that connects successively.
Described wireless signal transmitting module and wireless signal receiver module can have at least two groups, and at least one group of the place ahead that is arranged on the cane body wherein is used to detect the obstacle of the place ahead projection, and remaining at least one group bottom that is arranged on the cane body is used for detecting the depression obstacle.
Described guidance system also can comprise a mode conversion switch that links to each other with described data processing module and the on and off switch that is used to control described guidance system working power, and described mode conversion switch and on and off switch are separately positioned on the described handle.
This utility model sends to described data processing module by described oriented module with detected bearing signal, and by described data processing module control alarm module, send corresponding alarm signal according to the orientation of current crutch, if what face when current service orientation is not positive direction, need adjust walking stick, the prompting that until in the face of forward the time, can send prompting or send current orientation at any time.In addition, send ultrasonic signal by described Single-chip Controlling ultrasonic emitting module, and utilize described each ultrasound wave receiver module to receive ultrasonic signal through the objects in front reflected back, be when detecting the place ahead and have protruding barrier or below to have depression and distance to surpass the secure threshold set, utilize described sound circuit to send corresponding alarm sound, remind the blind person to hide obstacle.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a theory diagram of the present utility model;
Fig. 3 is the circuit theory diagrams of ultrasonic emitting module in this utility model;
Fig. 4 is the circuit theory diagrams of magnetic field sensor and signal adjustment unit in this utility model;
Fig. 5 is the circuit theory diagrams of ultrasound wave receiver module in this utility model;
Fig. 6 is the circuit theory diagrams of sound circuit in this utility model.
The specific embodiment
A kind of preferred embodiment of the present utility model, as shown in fig. 1, comprise cane body 1 and be arranged on cane body 1 vertical handle 2, also comprise the guidance system that is arranged in cane body 1 and the handle 1, comprise on and off switch 4 in the described guidance system, mode conversion switch 5 and three groups of ultrasonic transmission/reception unit 31,32,33, described on and off switch 4 and mode conversion switch 5 are arranged on the handle 2, in three groups of ultrasonic transmission/reception unit two group 32,33 are separately positioned on the place ahead of cane body 1, be used to detect the obstacle of the place ahead projection, remaining one group of 31 bottom that is arranged on cane body 1 is used for detecting the depression obstacle.
Described guidance system as shown in Figure 2, comprise data processing module and the ultrasonic emitting module that links to each other with described data processing module respectively, ultrasound wave receiver module, alarm module and oriented module, the ultrasonic transmission/reception unit shown in Fig. 1 promptly comprises described ultrasonic emitting module and ultrasound wave receiver module.Described alarm module adopts sound circuit, realizes voice prompt alarm; Described ultrasonic emitting module comprises multivibrator, drive circuit and the ultrasonic transducer that connects successively; Described ultrasound wave receiver module comprises ultrasonic transducer, signal amplification circuit and the voltage shaping circuit that connects successively.Described data processing module adopts microprocessors such as single-chip microcomputer.Described oriented module mainly is made up of sensor unit, signal adjustment unit and direction determining unit.Among the figure, sensor unit adopts two-dimensional magnetic field pick off KMZ52, be used for the earth's magnetic field signal is changed into the signal of telecommunication output of X-axis and Y direction, described signal adjustment unit is with the proportional amplification of the output signal in the described magnetic field sensor unit, and convert thereof into appropriate signal hex and hey, the skew of erasure signal simultaneously.The two paths of signals hex and the hey of described signal adjustment unit output can be amplified by described direction determining unit, and then is calculated as follows out deflection angle α:
α＝arctan?hey/hex
So just can draw the deflection angle in this magnetic field, by interface this signal is sent to single-chip microcomputer at last, and then the control voice module carries out the voice guiding.Described data processing module can also be connected with mode conversion switch, is used to control the conversion of described guidance system between guide function and obstacle detection function.
As shown in Figure 3, circuit theory diagrams for magnetic field sensor in this utility model and signal adjustment unit, because the magnetic resistance output of the inner bridge architecture of described two-dimensional magnetic field pick off KMZ52 U6 is differential voltage, by operational amplifier U1B, U2B, U3B, two groups of differential amplifiers that U4B constitutes, can make two-way differential voltage signal hex and the hey of magnetic field sensor U6 adopt the same proportional amplification of amplifier structure, for two magnetic field sensor signal are amplified same multiple, can be with the flip coils series connection of the two, promptly link to each other with 10 feet by 1 foot of lead with magnetic field sensor U6, and import from (1) mouth from the energizing signal of 11 feet output, X, Y-axis differential voltage signal is then respectively from (2), (3) mouthful output, by the direction determining unit signal that transmits is carried out the A/D sampling then, numerical value can obtain the angle of being asked after handling and proofreading and correct.Described direction determining unit can be passed through an independently microprocessor realization, or realizes its function as a processing unit in the described single-chip microcomputer.
As shown in Figure 4, circuit theory diagrams for the ultrasonic emitting module, the multivibrator vibration that utilizes LM555CH integrated timer U2 to form produces the ultrasound wave of 40kHz, in order to make supersonic finding range enough far away, can carry out sending again after the power amplification to oscillator signal, therefore the transmitting terminal at described many thanks agitator connects a drive circuit that is made of Darlington audion Q1, to strengthen its driving force, send ultrasonic signal by the wave transducer (not indicating among the figure) that surpasses into that links to each other with the colelctor electrode output of described Darlington audion Q1 at last.
As shown in Figure 5, be the circuit theory diagrams of ultrasound wave receiver module, when in air, propagating owing to ultrasound wave, the decay of its energy is directly proportional with distance, promptly the near more signal of distance is strong more, and distance signal far away more is weak more, and the ultrasonic signal that returns is usually between 10mV～60mV.So signal processing will carry out the gain amplifier more than 100 times from the ultrasonic signal that ultrasonic transducer (not indicating the figure) receives for convenience.Adopting LM358 operational amplifier U1A, U2A to carry out two-stage in the described signal amplification circuit amplifies, the about 5V of signal voltage after order is amplified, output after the amplification meets a detection diode D1 again and carries out voltage stabilizing, carry out the square wave shaping by a voltage shaping circuit that constitutes by Schmidt trigger U3A then, deliver to described single-chip microcomputer at last and carry out date processing.
Described sound circuit as shown in Figure 6, speech chip U5 adopts ISD2590 in the circuit, this chip is can divide the chip of Multitake recording playback in 90 seconds, sectional control is controlled by the single-chip microcomputer address wire, by program the memory space in the speech chip U5 is divided into 8 sections every section and can records recording in 10 seconds, respectively typing " the place ahead one meter in barrier is arranged ", the voice of " the place ahead half meter in barrier is arranged " and " the place ahead 20 centimetres in barrier is arranged " and " there is depression the below " four sections different failure conditions of representative, and " the place ahead be eastern ", four sections voice of representing different directions of " the place ahead is the west " and " the place ahead is south " and " the place ahead is north ".
After pressing the on and off switch 4 that is positioned at handle 2 places, when being transformed into the duty of " guiding " by mode conversion switch 5, described oriented module sends to described data processing module with detected bearing signal, and by described data processing module control sound circuit, send corresponding voice suggestion according to the orientation of current crutch, if what face when current service orientation is not positive direction, need adjust walking stick, until the prompting of can sounding when the forward, also can be when adjusting walking stick, the voice suggestion of sending current orientation angles in real time.When being transformed into the duty of " obstacle detection " by mode conversion switch 5, described Single-chip Controlling ultrasonic emitting module is sent ultrasonic signal, and utilize described each ultrasound wave receiver module to receive ultrasonic signal through the objects in front reflected back, be when detecting the place ahead and have protruding barrier or below to have depression and distance to surpass the secure threshold set, utilize described sound circuit to send corresponding alarm sound, remind the blind person to hide obstacle.Wherein, positive logic is adopted in projection obstacle detection in the place ahead, and promptly the ultrasonic signal that ought receive is strong more, illustrates closely more apart from barrier, calls among the described speech chip U5 corresponding voice segments according to the single-chip microcomputer calculated distance and points out; The below depression is surveyed and is adopted antilogical, and promptly the explanation below is ground when the ultrasonic signal that receives is more intense, does not need prompting this moment; There is bigger depression the explanation below but echo-signal is more weak when surpassing setting value, calls among the described speech chip U5 corresponding voice segments this moment and points out.When not needing to use the obstacle detection function, then close described on and off switch, device enters battery saving mode, can be used as common walking stick and uses.
In addition, the transmitting-receiving of described wireless signal also can adopt infrared signal to realize.
More than the walking stick with guide function provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. walking stick with guide function, comprise the cane body and be arranged on the vertical handle of cane body, it is characterized in that: also comprise the guidance system that is arranged in cane body or the handle, described guidance system comprises data processing module and the oriented module and the alarm module that link to each other with described data processing module respectively, described oriented module comprises magnetic field sensor unit, signal adjustment unit and signal processing unit, send into described signal processing unit after the signal amplification of described signal adjustment unit with described magnetic field sensor unit output, after described signal processing unit calculates deflection angle, send to described data processing module.
2. the walking stick with guide function according to claim 1 is characterized in that: described signal adjustment unit comprises two groups of differential amplifiers that are connected described magnetic field sensor outfan.
3. the walking stick with guide function according to claim 2 is characterized in that: it is the two-dimensional magnetic field pick off of KMZ52 that described magnetic field sensor adopts model.
4. according to claim 1 or 2 or 3 described walking sticks, it is characterized in that: also comprise the wireless signal transmitting module, the wireless signal receiver module that link to each other with described data processing module respectively in the described guidance system with guide function.
5. the walking stick with guide function according to claim 4, it is characterized in that: described wireless signal transmitting module and wireless signal receiver module can have at least two groups, at least one group of the place ahead that is arranged on the cane body wherein, remaining at least one group bottom that is arranged on the cane body.
6. the walking stick with guide function according to claim 4 is characterized in that: described wireless signal transmitting module and wireless signal receiver module are respectively ultrasonic emitting module and ultrasound wave receiver module.
7. according to claim 1 or 2 or 3 described walking sticks with guide function, it is characterized in that: described alarm module comprises the sound circuit that links to each other with described data processing module.
8. the walking stick with guide function according to claim 6 is characterized in that: described ultrasonic emitting module comprises multivibrator, drive circuit and the ultrasonic transducer that connects successively.
9. the walking stick with guide function according to claim 6 is characterized in that: described ultrasound wave receiver module comprises ultrasonic transducer, signal amplification circuit and the voltage shaping circuit that connects successively.
10. according to claim 1 or 2 or 3 described walking sticks with guide function, it is characterized in that: described guidance system also comprises a mode conversion switch that links to each other with described data processing module, with the on and off switch that is used to control described guidance system working power, described mode conversion switch and on and off switch are separately positioned on the described handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200050161U CN201164538Y (en) | 2008-03-21 | 2008-03-21 | Walking sticks with guiding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200050161U CN201164538Y (en) | 2008-03-21 | 2008-03-21 | Walking sticks with guiding function |
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| Publication Number | Publication Date |
|---|---|
| CN201164538Y true CN201164538Y (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200050161U Expired - Fee Related CN201164538Y (en) | 2008-03-21 | 2008-03-21 | Walking sticks with guiding function |
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| CN (1) | CN201164538Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944261A (en) * | 2010-09-15 | 2011-01-12 | 郝杨兰 | Method and device for blind person to recognize lavatory for men and lavatory for women |
| CN101947181A (en) * | 2010-07-19 | 2011-01-19 | 西华大学 | Intelligent multifunctional guide crutch |
| CN103371904A (en) * | 2012-04-18 | 2013-10-30 | 无锡知谷网络科技有限公司 | Player with direction guiding function |
| CN103983965A (en) * | 2014-05-26 | 2014-08-13 | 国家电网公司 | Ultrasonic transmitting module for bionic robot |
| CN103978496A (en) * | 2014-05-26 | 2014-08-13 | 国家电网公司 | Ultrasonic sensing circuit for bionic robots |
| CN104068997A (en) * | 2014-06-30 | 2014-10-01 | 北京信息科技大学 | Multifunctional walking stick for blind |
| CN104546390A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | Blind road and obstacle identification system and method |
| 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 |
| CN105147504A (en) * | 2015-08-12 | 2015-12-16 | 中原工学院 | Multifunctional intelligent blind guiding crutch |
| CN106580644A (en) * | 2016-12-20 | 2017-04-26 | 上海斐讯数据通信技术有限公司 | Information conversion method and system and blind people navigation method and system |
-
2008
- 2008-03-21 CN CNU2008200050161U patent/CN201164538Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947181A (en) * | 2010-07-19 | 2011-01-19 | 西华大学 | Intelligent multifunctional guide crutch |
| CN101944261A (en) * | 2010-09-15 | 2011-01-12 | 郝杨兰 | Method and device for blind person to recognize lavatory for men and lavatory for women |
| CN103371904A (en) * | 2012-04-18 | 2013-10-30 | 无锡知谷网络科技有限公司 | Player with direction guiding function |
| CN103983965A (en) * | 2014-05-26 | 2014-08-13 | 国家电网公司 | Ultrasonic transmitting module for bionic robot |
| CN103978496A (en) * | 2014-05-26 | 2014-08-13 | 国家电网公司 | Ultrasonic sensing circuit for bionic robots |
| CN104068997A (en) * | 2014-06-30 | 2014-10-01 | 北京信息科技大学 | Multifunctional walking stick for blind |
| 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 |
| CN104546390A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | Blind road and obstacle identification system and method |
| CN105147504A (en) * | 2015-08-12 | 2015-12-16 | 中原工学院 | Multifunctional intelligent blind guiding crutch |
| CN106580644A (en) * | 2016-12-20 | 2017-04-26 | 上海斐讯数据通信技术有限公司 | Information conversion method and system and blind people navigation method and 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: 20081217 Termination date: 20100321 |