CN1803043A - Anticollision voice crabstick for blind - Google Patents
Anticollision voice crabstick for blind Download PDFInfo
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- CN1803043A CN1803043A CN 200510023192 CN200510023192A CN1803043A CN 1803043 A CN1803043 A CN 1803043A CN 200510023192 CN200510023192 CN 200510023192 CN 200510023192 A CN200510023192 A CN 200510023192A CN 1803043 A CN1803043 A CN 1803043A
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- voice
- microprocessor
- comparator
- distance
- sensing head
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Abstract
The invention relate to a householdgoods for blindmen, in particular to a voice walking stick with voice hint for blindmen, which is characterized in that the microtreater is connected with sensing head emitting supersonic wave through boosted circuit to output working signal emitted by supersonic wave sensing head, which is connected with input end of comparator through amplifier and band filter at the same time, the sensibility regulator controlled by microtreater in host machine is connected with the other end of comparator, the output end of comparator is connected with microtreater, and the microtreater is connected with ear phone through voice memory and energy amplification circuit. The distance between hand stick and obstacle can be detected by voice energy amplifier and distinguish the distance with tone of voice, the further of the distance, the lower and slower of the tone of alarm; and the nearer of distance, the higher and faster of the tone of alarm, by means of which to alarm the blind.
Description
Technical field
The present invention relates to a kind of blindman articles for use, relate in particular to the crashproof walking stick of a kind of blind person apart from voice suggestion.
Background technology:
Blind person's walking stick is general in the prior art adopts a wooden stick of exploring the way to advance with feeling to touch to go with ground, contact mode, though existing sidewalk for visually impaired people shows the way, barrier is often arranged on the sidewalk for visually impaired people, and the blind person is difficult to the distance of clear and definite disturbance in judgement thing.
Summary of the invention
There is defective for overcoming prior art, the invention provides a kind of usefulness and indicate the crashproof walking stick of blind person's avoiding obstacles apart from voice.
The technical solution adopted for the present invention to solve the technical problems is: a kind of anticollision voice crabstick for blind, comprise main frame, ultrasonic wave emission receiving sensor, earphone, it is characterized in that, described main frame comprises microprocessor, the transmitted wave booster circuit, microprocessor is used to control sensitivity control, comparator, combination tone is adjusted circuit, speech memory, power amplification circuit, microprocessor in the main frame is connected with ultrasonic wave emission sensing head by booster circuit, the working signal of output ultrasonic wave sensing head emission, simultaneously, ultrasonic wave receives sensing head and passes through amplifier again, bandpass filter is connected with an input of comparator, the sensitivity control by microprocessor output control in the main frame is connected with the other end of comparator, the output of comparator is connected to microprocessor, microprocessor is by speech memory, and power amplification circuit is connected with earphone.
The invention has the beneficial effects as follows that adopting combination tone adjustment circuit and phonetic speech power amplifier can accurately measure walking stick also debates other barrier from the walking stick distance with the tone of voice from obstacle distance, the warning tones of different audio frequency combinations, distance is far away more, tone is low more slow more, distance is near more, tone is high more rapid more, warns the blind person the closer to barrier with this.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a fundamental diagram of the present invention.
The specific embodiment
Shown in Figure 1: a kind of anticollision voice crabstick for blind, comprise main frame, ultrasonic wave emission receiving sensor, earphone, it is characterized in that, described main frame comprises microprocessor, the transmitted wave booster circuit, microprocessor is used to control sensitivity control, comparator, combination tone is adjusted circuit, speech memory, power amplification circuit, microprocessor in the main frame is connected with ultrasonic wave emission sensing head by booster circuit, the working signal of output ultrasonic wave sensing head emission, simultaneously, ultrasonic wave receives sensing head and passes through amplifier again, bandpass filter is connected with an input of comparator, the sensitivity control by microprocessor output control in the main frame is connected with the other end of comparator, the output of comparator is connected to microprocessor, microprocessor is by speech memory, and power amplification circuit is connected with earphone.
When the blind person goes into the street, connect power supply on the walking stick, at first, send transmitting of certain wave number microprocessor cycle, this transmits after booster circuit boosts, and drives the emitting head emission ultrasonic wave in the ultrasonic sensor.Ultrasonic wave runs into barrier reflecting part partial wave, back wave is received by the reception head in the ultrasonic sensor, and convert ultra-weak electronic signal to, the echo-signal that in ultrasonic sensor, obtains amplifying behind amplifying circuit amplification and the bandpass filtering, behind the sensitivity adjustment circuit and comparison circuit of microprocessor control, produce corresponding square wave, microprocessor is given in passback, microprocessor calculates transmitted wave to the time difference that receives ripple, and then calculate the distance of barrier to walking stick, when barrier enters alarm region, the distance areas that microprocessor is provided with according to program, the control speech memory is exported corresponding distance value voice signal, microprocessor sends the combining audio square-wave signal that changes with distance value simultaneously, after combination tone was adjusted the circuit adjustment, two paths of signals amplified through audio power amplifying circuit, promoted loudspeaker and sent corresponding apart from voice and abundant combination tone warning tones.
Claims (1)
1. anticollision voice crabstick for blind, comprise main frame, ultrasonic wave emission receiving sensor, earphone, it is characterized in that, described main frame comprises microprocessor, the transmitted wave booster circuit, microprocessor is used to control sensitivity control, comparator, combination tone is adjusted circuit, speech memory, power amplification circuit, microprocessor in the main frame is connected with ultrasonic wave emission sensing head by booster circuit, the working signal of output ultrasonic wave sensing head emission, simultaneously, ultrasonic wave receives sensing head and passes through amplifier again, bandpass filter is connected with an input of comparator, the sensitivity control by microprocessor output control in the main frame is connected with the other end of comparator, the output of comparator is connected to microprocessor, microprocessor is by speech memory, and power amplification circuit is connected with earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510023192 CN1803043A (en) | 2005-01-11 | 2005-01-11 | Anticollision voice crabstick for blind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510023192 CN1803043A (en) | 2005-01-11 | 2005-01-11 | Anticollision voice crabstick for blind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1803043A true CN1803043A (en) | 2006-07-19 |
Family
ID=36865297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510023192 Pending CN1803043A (en) | 2005-01-11 | 2005-01-11 | Anticollision voice crabstick for blind |
Country Status (1)
| Country | Link |
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| CN (1) | CN1803043A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106213708A (en) * | 2016-08-04 | 2016-12-14 | 秦博晟 | A kind of multi-function walking stick |
| WO2018027885A1 (en) * | 2016-08-12 | 2018-02-15 | 刘文婷 | Bluetooth-based ultrasonic obstacle detection ankle band for blind persons |
| WO2018027884A1 (en) * | 2016-08-12 | 2018-02-15 | 刘文婷 | Ultrasonic obstacle detection ankle band for blind persons |
| CN109793648A (en) * | 2019-03-22 | 2019-05-24 | 丁问原 | A kind of ultrasonic scanning formula blind person's distance measuring spectacles |
| CN113086131A (en) * | 2021-03-26 | 2021-07-09 | 美钻能源科技(上海)有限公司 | Underwater intelligent walking stick with display screen |
-
2005
- 2005-01-11 CN CN 200510023192 patent/CN1803043A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106213708A (en) * | 2016-08-04 | 2016-12-14 | 秦博晟 | A kind of multi-function walking stick |
| WO2018027885A1 (en) * | 2016-08-12 | 2018-02-15 | 刘文婷 | Bluetooth-based ultrasonic obstacle detection ankle band for blind persons |
| WO2018027884A1 (en) * | 2016-08-12 | 2018-02-15 | 刘文婷 | Ultrasonic obstacle detection ankle band for blind persons |
| CN109793648A (en) * | 2019-03-22 | 2019-05-24 | 丁问原 | A kind of ultrasonic scanning formula blind person's distance measuring spectacles |
| CN113086131A (en) * | 2021-03-26 | 2021-07-09 | 美钻能源科技(上海)有限公司 | Underwater intelligent walking stick with display screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |