CN202920580U - Hand-held electronic blind guide instrument - Google Patents
Hand-held electronic blind guide instrument Download PDFInfo
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- CN202920580U CN202920580U CN201220567593.6U CN201220567593U CN202920580U CN 202920580 U CN202920580 U CN 202920580U CN 201220567593 U CN201220567593 U CN 201220567593U CN 202920580 U CN202920580 U CN 202920580U
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- 238000006243 chemical reaction Methods 0.000 claims description 16
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- 238000002604 ultrasonography Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 5
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Abstract
The utility model discloses a hand-held electronic blind guide instrument which mainly comprises a battery pack, a +5V voltage switching circuit, an independent key group, an ultrasonic module, a main control chip, a pair of earphones, a voice module and an electronic compass module, wherein the independent key group, the ultrasonic module, the electronic compass module and the voice module are connected with an I/O (Input/Output) corresponding to the main control chip by a simple interface circuit; the battery pack is connected with a +5V voltage switching module by a wire; and the pair of earphones is connected with earphone sockets in the voice module. The blind guide instrument has the advantages that the blind guide instrument is small in size and simple in structure, and can be used by a user conveniently; a probe of the ultrasonic module is used for detecting surrounding roadblocks; the electronic compass module is used for judging an advancing direction of the blind; the blind can conveniently acquire the advancing direction and a distance to the surrounding roadblocks through recorded prompt voice in the voice module; the blind can select a correct advancing route; and an activity space of the blind is enlarged.
Description
Technical field
This utility model relates to a kind of handheld electronic apparatus for guiding blind, specially refers to a kind of with the electronic compass perceived direction, with ultrasonic ranging and the electronic blindman guiding instrument that can carry out voice suggestion.
Background technology
Huge in China blind person colony, and account for a big chunk of world blind person, seeing-eye dog is blind person's best guide instrument, and few in China's seeing-eye dog quantity, and the training cycle of seeing-eye dog is long, somewhat expensive.Blind person colony ought to be subject to concern and the love of society as the disadvantaged group in our members of society.Present diversified apparatus for guiding blind is devised, but only limit to detect the caution that barrier carries out buzzer or speaker, the obstacle information that the blind person obtains is too single, accurate distance from barrier can't be learnt, and blind person the other side in walking does not upwards have too many perception, can only rely on the direction of remembeing in track route to change, so blind person's range of activity is very little.
The utility model content
For the deficiencies in the prior art part this utility model will provide a kind of easy to carry, simple to operate, can carry out voice prompt blind distance and point out the handheld electronic apparatus for guiding blind of blind person's direction of travel, be the destination of arrival fast that the blind person can safety.
The technical scheme that its technical problem that solves this utility model adopts is:
This handheld electronic apparatus for guiding blind mainly by main control chip, electrical compass module, voice module, earphone, set of cells ,+5V voltage conversion circuit, independent key groups, ultrasonic wave module form.
It is that apparatus for guiding blind is powered that described set of cells is comprised of as power supply No. 7 aneroid battery of 4 joint 1.5V, the output of set of cells is connected to+the 5V voltage conversion circuit on;
Described+5V voltage conversion circuit adopts the voltage conversion circuit based on LM7805 voltage stabilizing chip, be that apparatus for guiding blind can be used+5V voltage with the voltage transitions of set of cells, the electric power input mouth of+5V voltage conversion circuit and ultrasonic wave module, voice module, electrical compass module is connected to each module for power supply;
Described main control chip adopts the STC12C5A60S2 single-chip microcomputer of STC Corporation, and the I/O mouth of main control chip is connected by the interface of simple interface circuit with peripheral each module, realizes each module is controlled;
Described voice module adopts the voice module based on the ISD4004 speech chip, deposit the voice suggestion sound of recording in advance in the ISD4004 speech chip, the interface of voice module is connected with the I/O of main control chip, after the playback instruction that receives main control chip, the blind person is carried out voice suggestion, voice module earphone jack arranged, be used for frames connecting with headphone, the blind person receives the voice suggestion sound by earphone;
Described ultrasonic wave module adopts has hyperacoustic pair of ultrasound probe module of sending and receiving, for emission, reception ultrasound wave, barrier is found range, the interface of ultrasonic wave module is connected with the I/O of main control chip, main control chip reads emission, receives hyperacoustic time, utilizes time difference to calculate the distance of blind person and barrier;
Described electrical compass module adopts the three-axle magnetic field module based on the HMC5883L chip, by being detected, earth magnetic induction line obtains blind person's direction of travel, the electrical compass module output port is connected with the I/O mouth of main control chip, main control chip is reading out data from electrical compass module, is used for judging the direction that the blind person advances and with the voice prompt tone, the blind person being pointed out.
The beneficial effects of the utility model are: comparing this handheld electronic apparatus for guiding blind with traditional apparatus for guiding blind can carry out voice suggestion to the blind person, distance between blind person and barrier is pointed out the blind person by voice, the direction of blind person's walking is pointed out the blind person by voice, can guide blind safety, arrive destination fast, guarantee blind person's personal safety.
Description of drawings
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
Fig. 1 is the hardware system block diagram of this utility model handheld electronic apparatus for guiding blind.
Fig. 2 is the circuit diagram of electrical compass module.
Fig. 3 is+circuit diagram of 5V voltage conversion circuit.
Fig. 4 is ultrasound wave piece circuit diagram.
Fig. 5 is voice mould module circuit diagram.
Fig. 6 is main control chip minimum system circuit diagram
The specific embodiment
Below in conjunction with accompanying drawing, this utility model is described in further detail.
In hardware decorum block diagram shown in Figure 1, formed by main control chip, set of cells, the independent key groups of group, voice module, ultrasonic wave module, electrical compass module, earphone.Set of cells connection+5V voltage conversion circuit; + 5V voltage conversion circuit is connected power supply with other module; Earphone is connected with voice module; + 5V voltage conversion circuit, independent key groups, ultrasonic wave module, electrical compass module, voice module are connected with the I/O interface of main control chip through simple interface circuit.
In the circuit diagram of electrical compass module shown in Figure 2, HMC5883L three number of axle word compass chips of use can record the direction of walking when the blind person walks, and single-chip microcomputer can be read away the data of expression blind person direction of travel from electrical compass module.
In shown in Figure 3+5V voltage transformation module circuit diagram, used LM7805 voltage stabilizing chip, be+5V voltage to be main control chip and each module for power supply with the voltage transitions of set of cells.
Ultrasonic emitting has partly adopted LM386 power amplification chip in ultrasonic wave module circuit diagram shown in Figure 4, sends ultrasound wave under the control of the I/O of unit port; The receiving portion of ultrasonic wave module has adopted CX2010A as ultrasound wave reception ﹠ disposal chip, ultrasonic wave module has adopted reception, the hyperacoustic two probes of emission to realize detection to blind person the place ahead obstacle distance, by receive, the time difference of emission calculates the blind person apart from the distance of barrier.
Adopted the ISD4004 speech chip in voice module circuit diagram shown in Figure 5, prompting direction of travel and be to record in advance to leave in the ISD4004 speech chip apart from the prompt tone of obstacle different distance, when receiving the play instruction of main control chip, by the data decode of expression distance and direction being called corresponding voice suggestion sound in the ISD4004 speech chip, thereby reach the accurate prompting to direction and distance, the voice suggestion sound carries out voice suggestion via earphone interface to the blind person.
In main control chip minimum system circuit diagram shown in Figure 6, with the quick single-chip microcomputer of the STC12C5A60S2 of STC Corporation, the I/O mouth of main control chip is connected with the interface of peripheral each module by the simple interface circuit to be controlled each module, in figure ON, OFF, CHANGE control respectively apparatus for guiding blind startup, stop, switching to direction and point out.
the blind person is when using this apparatus for guiding blind, can hold apparatus for guiding blind by one hand, startup button by key groups starts apparatus for guiding blind, ultrasonic emitting probe and the circulation of ultrasound wave receiving transducer of main control chip control this moment ultrasonic wave module are surveyed barrier, every loop detection once is sent to single-chip microcomputer with detection data afterwards, when barrier appears in blind person the place ahead, barrier is with the ultrasonic reflections of transmitting probe emission, after the ultrasound wave of reflection is received by the acceptance of ultrasonic wave module probe, the STC12C5A60S2 single-chip microcomputer reads the time difference between the ultrasound wave of launching ultrasound wave and receiving reflection, the STC12C5A60S2 single-chip microcomputer is by after calculating detection data, calculate the blind person apart from the distance between barrier, the distance value of STC12C5A60S2 single-chip microcomputer by the distance barrier sends instructions to voice module and selects the voice suggestion sound of respective distances, voice module is after the instruction that receives STC12C5A60S2, broadcast is stored in the voice suggestion sound of the prompting different distance of recording in advance in the ISD4004 speech chip, thereby accurately point out the blind person apart from the distance between barrier, earphone jack is arranged on voice module, by earphone, the voice suggestion sound is passed to the blind person and do not affect other pedestrians, ultrasonic wave module will be carried out the detection of the barrier of next round after the voice suggestion sound finishes.
when wondering the direction of oneself walking, the blind person points out button by the direction in the group that pushes button, the STC12C5A60S2 single-chip microcomputer will read the data of the direction of blind person's walking from electrical compass module, the STC12C5A60S2 single-chip microcomputer sends instructions to voice module by the processing to data and selects the voice suggestion sound of respective direction in ISD4004, voice module is after the instruction that receives STC12C5A60S2, broadcast is stored in the voice suggestion sound of the prompting different directions of recording in advance in the ISD4004 speech chip, thereby reach the purpose of prompting blind person direction of travel, earphone jack is arranged on voice module, by earphone, the voice suggestion sound is passed to the blind person and do not affect other pedestrians, after the direction prompt tone is play, apparatus for guiding blind enters in the circulation of measuring distance obstacle distance again.Close button key apparatus for guiding blind and close by pressing after the blind person arrives destination, thereby completed whole guide task.
Therefore this hand-held apparatus for guiding blind junction structure is simple, volume is little, namely can hand-heldly can be fixed on again on other guide equipment such as blind guiding stick to use.
Claims (7)
1. handheld electronic apparatus for guiding blind, mainly by: main control chip, set of cells ,+5V voltage conversion circuit, independent key groups, voice module, ultrasonic wave module, electrical compass module, earphone form; It is characterized in that: adopt battery powered, single-chip microcomputer is pressed fast as the main control chip processing speed, can judge the go forward side by side lang sound prompting of blind person's direction of travel, use ultrasonic ranging judgement blind person apart from the obstacle distance lang sound prompting of going forward side by side, prompt tone adopts earphone to listen to; Described+5V voltage conversion circuit, independent key groups, ultrasonic wave module, electrical compass module, voice module are connected with the I/O interface of main control chip through simple interface circuit; Described earphone is connected with earphone jack on voice module, is used for playing the voice suggestion sound; Described set of cells is comprised of No. 7 aneroid battery of 4 joint 1.5V, for apparatus for guiding blind is powered; Described+5V voltage conversion circuit is connected with set of cells, with the voltage transitions of set of cells is+5V, is the apparatus for guiding blind power supply; Described electrical compass module is used for surveying blind person's direction of travel; Described key groups is 3 key groups that independent button forms, and starts, stops, switching to the direction prompting as apparatus for guiding blind; Described main control chip is single-chip microcomputer, is used for controlling the ultrasonic wave module range finding, and the bearing data that the read electric compass module records is controlled voice module and play the voice suggestion sound.
2. handheld electronic apparatus for guiding blind according to claim 1, it is characterized in that: main control chip adopts the STC12C5A60S2 single-chip microcomputer of STC Corporation, the I/O mouth of main control chip is connected by the interface of simple interface circuit with peripheral each module, and each module is controlled.
3. handheld electronic apparatus for guiding blind according to claim 1, it is characterized in that: voice module adopts the voice module based on the ISD4004 speech chip, deposit the voice suggestion sound of recording in advance in the ISD4004 speech chip, the interface of voice module is connected with the I/O of main control chip, after the playback instruction that receives main control chip, the blind person is carried out voice suggestion, voice module earphone jack arranged, be used for frames connecting with headphone.
4. handheld electronic apparatus for guiding blind according to claim 1, it is characterized in that: ultrasonic wave module adopts the ultrasonic wave module with the hyperacoustic two probes of transmitting-receiving, by emission, reception ultrasound wave, barrier is found range, the interface of ultrasonic wave module is connected with the I/O of main control chip, main control chip reads emission, receives hyperacoustic time, and computation time, difference obtained the blind person apart from obstacle distance.
5. handheld electronic apparatus for guiding blind according to claim 1, it is characterized in that :+5V voltage conversion circuit adopts the voltage conversion circuit based on LM7805 voltage stabilizing chip, be that apparatus for guiding blind can be used+5V voltage with the voltage transitions of set of cells, voltage conversion circuit is connected with the electric power input mouth of ultrasonic wave module, voice module, electrical compass module, is each module for power supply.
6. handheld electronic apparatus for guiding blind according to claim 1 is characterized in that: it is the apparatus for guiding blind power supply that power supply adopts set of cells, and set of cells is comprised of No. 7 batteries of 4 joint 1.5V, the output of set of cells is connected to+the 5V voltage conversion circuit on.
7. handheld electronic apparatus for guiding blind according to claim 1, it is characterized in that: electronic compass adopts the three-axle magnetic field module based on the HMC5883L chip, the electrical compass module output port is connected with the I/O mouth of main control chip, the main control chip direction that reading out data judgement blind person advances from electrical compass module, and by the prompt tone of voice module, the blind person is pointed out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220567593.6U CN202920580U (en) | 2012-10-19 | 2012-10-19 | Hand-held electronic blind guide instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220567593.6U CN202920580U (en) | 2012-10-19 | 2012-10-19 | Hand-held electronic blind guide instrument |
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| CN202920580U true CN202920580U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220567593.6U Expired - Fee Related CN202920580U (en) | 2012-10-19 | 2012-10-19 | Hand-held electronic blind guide instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105139576A (en) * | 2015-07-09 | 2015-12-09 | 小米科技有限责任公司 | Road condition prompting method and device |
| CN106017447A (en) * | 2016-05-19 | 2016-10-12 | 天津商业大学 | Direction discrimination system adopting blind guiding bracelet |
| CN105997448A (en) * | 2016-04-30 | 2016-10-12 | 中国海洋大学 | Ultrasonic echo positioning blindness-guiding instrument of frequency-domain projection type |
| CN107157718A (en) * | 2017-06-12 | 2017-09-15 | 中国民航大学 | A kind of portable multi-function apparatus for guiding blind |
| CN109875860A (en) * | 2019-03-09 | 2019-06-14 | 华北水利水电大学 | A kind of intelligent blind-guiding instrument |
-
2012
- 2012-10-19 CN CN201220567593.6U patent/CN202920580U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105139576A (en) * | 2015-07-09 | 2015-12-09 | 小米科技有限责任公司 | Road condition prompting method and device |
| WO2017004955A1 (en) * | 2015-07-09 | 2017-01-12 | 小米科技有限责任公司 | Road condition prompting method and apparatus |
| CN105997448A (en) * | 2016-04-30 | 2016-10-12 | 中国海洋大学 | Ultrasonic echo positioning blindness-guiding instrument of frequency-domain projection type |
| CN106017447A (en) * | 2016-05-19 | 2016-10-12 | 天津商业大学 | Direction discrimination system adopting blind guiding bracelet |
| CN107157718A (en) * | 2017-06-12 | 2017-09-15 | 中国民航大学 | A kind of portable multi-function apparatus for guiding blind |
| CN109875860A (en) * | 2019-03-09 | 2019-06-14 | 华北水利水电大学 | A kind of intelligent blind-guiding instrument |
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| Date | Code | Title | Description |
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| 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: 20130508 Termination date: 20131019 |