CN201164539Y - Walking sticks with obstacle detection function - Google Patents
Walking sticks with obstacle detection function Download PDFInfo
- Publication number
- CN201164539Y CN201164539Y CNU2008200050176U CN200820005017U CN201164539Y CN 201164539 Y CN201164539 Y CN 201164539Y CN U2008200050176 U CNU2008200050176 U CN U2008200050176U CN 200820005017 U CN200820005017 U CN 200820005017U CN 201164539 Y CN201164539 Y CN 201164539Y
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- obstacle detection
- cane
- wireless signal
- detection function
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Abstract
The utility model relates to a blind guiding cane, in particular to a cane with the function of obstacle detection. The cane comprises a cane body, a handle arranged at the top end of the cane body and an obstacle detecting system, wherein, the obstacle detecting system comprises a data processing module, a radio signal transmitting module, a radio signal receiving module and an alarm module, and the radio signal transmitting module, the radio signal receiving module and the alarm module are respectively connected with the data processing module; the radio signal transmitting module and the radio signal receiving module are both arranged on the cane body. Radio signals are sent out by the radio signal transmitting module of the cane, and the radio signal receiving module is used for receiving the radio signals reflected by an object in front. The cane has the capability of predicting danger such as bulge obstacles in front, trapped trenches, and the like, and signals the situation of surrounding obstacles to the blind by the alarm module. Moreover, because the alarm module adopts a voice circuit, different voice indications can be sent out when detecting the distance with an obstacle. The cane can accurately remind users to avoid obstacles in time.
Description
Technical field
This utility model relates to a kind of blind guiding stick, particularly a kind of walking stick with obstacle detection 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, visits ground by hand-held walking stick point, can only just can know the road surface situation when touching barrier, does not have predictive ability for barrier, has often brought a lot of inconvenience.
The utility model content
This utility model has overcome above-mentioned shortcoming, and a kind of walking stick with obstacle detection function simple in structure, safe and convenient to use is provided.
The technical scheme in the invention for solving the technical problem is: a kind of walking stick with obstacle detection function, comprise the cane body and be arranged on the vertical handle of cane body, also comprise obstacle detection system, described obstacle detection system comprises data processing module and the wireless signal transmitting module that links to each other with described data processing module respectively, wireless signal receiver module, alarm module, and described wireless signal transmitting module and wireless signal receiver module all are arranged on one's body the cane.
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.
Also can be provided with an on and off switch that is used to control the working power of described obstacle detection system on the described handle.
Described multivibrator can be made of the LM555CH integrated timer.
This utility model sends wireless signal by wireless signal transmitting module, and utilize described wireless signal receiver module to receive wireless signal through the objects in front reflected back, the projection barrier in the place ahead and the danger such as tunnel of sinking all there are predictive ability, and inform the situation of blind person's peripheral obstacle by alarm module; In addition because described alarm module adopts sound circuit, make detect with barrier apart from the time can, send different voice suggestions, prompting user is promptly and accurately kept away barrier, has improved the safety and the accuracy of walking stick, and has used convenient.
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 ultrasound wave receiver module in this utility model;
Fig. 5 is the circuit theory diagrams of sound circuit in this utility model.
The specific embodiment
As shown in fig. 1, this utility model comprises cane body 1 and is arranged on cane body 1 vertical handle 2, also comprise the obstacle detection system that is arranged in cane body 1 and the handle 1, comprise on and off switch 4 and three groups of ultrasonic transmission/reception unit 31,32,33 in the described obstacle detection system, described on and off switch 4 is arranged on the handle 2, two group 32,33 the place ahead that is separately positioned on cane body 1 in three groups of ultrasonic transmission/reception unit, 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 obstacle detection 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, 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.
As shown in Figure 3, 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 4, 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 5, 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 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 voice of representing different failure conditions.
After pressing the on and off switch 4 that is positioned at handle 2 places, device enters the duty of " obstacle detection ", 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 obstacle detection 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 (8)
1. walking stick with obstacle detection function, comprise the cane body and be arranged on the vertical handle of cane body, it is characterized in that: also comprise obstacle detection system, described obstacle detection system comprises data processing module and the wireless signal transmitting module that links to each other with described data processing module respectively, wireless signal receiver module, alarm module, and described wireless signal transmitting module and wireless signal receiver module all are arranged on one's body the cane.
2. the walking stick with obstacle detection function according to claim 1, it is characterized in that: described wireless signal transmitting module and wireless signal receiver module 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.
3. the walking stick with obstacle detection function according to claim 1 is characterized in that: described alarm module comprises the sound circuit that links to each other with described data processing module.
4. according to claim 1 or 2 or 3 described walking sticks with obstacle detection function, it is characterized in that: described wireless signal transmitting module and wireless signal receiver module are respectively ultrasonic emitting module and ultrasound wave receiver module.
5. the walking stick with obstacle detection function according to claim 4 is characterized in that: described ultrasonic emitting module comprises multivibrator, drive circuit and the ultrasonic transducer that connects successively.
6. the walking stick with obstacle detection function according to claim 4 is characterized in that: described ultrasound wave receiver module comprises ultrasonic transducer, signal amplification circuit and the voltage shaping circuit that connects successively.
7. according to each described walking stick in claim 1 or 2 or 3, it is characterized in that: also be provided with an on and off switch that is used to control the working power of described obstacle detection system on the described handle with obstacle detection function.
8. according to claim
Described walking stick with obstacle detection function is characterized in that: described multivibrator is made of the LM555CH integrated timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200050176U CN201164539Y (en) | 2008-03-21 | 2008-03-21 | Walking sticks with obstacle detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200050176U CN201164539Y (en) | 2008-03-21 | 2008-03-21 | Walking sticks with obstacle detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201164539Y true CN201164539Y (en) | 2008-12-17 |
Family
ID=40189925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200050176U Expired - Fee Related CN201164539Y (en) | 2008-03-21 | 2008-03-21 | Walking sticks with obstacle detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201164539Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012143952A2 (en) * | 2011-04-20 | 2012-10-26 | B Amutha | A system and apparatus for safe remote on-line tracing, shadowing, surveillance, inter-communication, location, navigation, tagging, rescue, recovery and restitution of humans and stolen/missing chattels, and the method/s thereof |
| CN103932875A (en) * | 2013-01-21 | 2014-07-23 | 吴欣怡 | Seeing-eye walking stick based on ultrasonic ranging |
| CN105943324A (en) * | 2016-05-26 | 2016-09-21 | 苏州经贸职业技术学院 | An ultrasonic wave-based walking stick for the blind |
-
2008
- 2008-03-21 CN CNU2008200050176U patent/CN201164539Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012143952A2 (en) * | 2011-04-20 | 2012-10-26 | B Amutha | A system and apparatus for safe remote on-line tracing, shadowing, surveillance, inter-communication, location, navigation, tagging, rescue, recovery and restitution of humans and stolen/missing chattels, and the method/s thereof |
| WO2012143952A3 (en) * | 2011-04-20 | 2013-01-17 | B Amutha | System, apparatus and method for communication, navigation and restitution |
| CN103932875A (en) * | 2013-01-21 | 2014-07-23 | 吴欣怡 | Seeing-eye walking stick based on ultrasonic ranging |
| CN105943324A (en) * | 2016-05-26 | 2016-09-21 | 苏州经贸职业技术学院 | An ultrasonic wave-based walking stick for the blind |
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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 |