CN109410522A - A kind of hearing-impaired people's traffic trip suggestion device - Google Patents
A kind of hearing-impaired people's traffic trip suggestion device Download PDFInfo
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- CN109410522A CN109410522A CN201811147614.7A CN201811147614A CN109410522A CN 109410522 A CN109410522 A CN 109410522A CN 201811147614 A CN201811147614 A CN 201811147614A CN 109410522 A CN109410522 A CN 109410522A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0438—Sensor means for detecting
- G08B21/0469—Presence detectors to detect unsafe condition, e.g. infrared sensor, microphone
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Gerontology & Geriatric Medicine (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention discloses a kind of hearing-impaired people's traffic trip suggestion device, include miniature signal acquisition module, target locating module, target identification module, memory module, message output module, GPS positioning module, wherein except message output module is located in bracelet terminal device, remaining module is respectively positioned in epaulet headend equipment.Voice signal abnormal around can be perceived by wechat signal acquisition module, fixation and recognition is carried out to sound source, sound source information is shown by bracelet terminal device, and can pass through vibration prompt hearing-impaired people.The device realizes the quick positioning and identification of target by Hardware/Software Collaborative Design, user can be reminded to avoid risk in hearing-impaired people's traffic trip, and the plant bulk is smaller is convenient for carrying easy to operate, and target user is extensive.
Description
Technical field
The invention belongs to intelligent wearable device fields, and in particular to a kind of hearing-impaired people's traffic trip suggestion device.
Background technique
It is counted through China Disabled Federation, the hearing-impaired people in the whole country is about more than 20,000,000.Due to such crowd
Defect physiologically, result in they in life cannot same normal person (non-hearing-impaired people) equally perceive around environment to
It responds, causes often to encounter many difficulties in life.
Although now science and technology is flourishing, the domestic public affairs for even lacking condition and facilitating it to go on a journey specifically for hearing-impaired people's deployment
Altogether measure, also there is no relevant policies guarantee cause protect such crowd safety trip, make such crowd in public in still
Danger can not be evaded, the safety problem of itself is unable to get guarantee, especially in traffic trip, hearing-impaired people often due to nothing
Method hears that abnormal noise or other people remind signal, causes to recognize inherently safe situation deficiency, traffic accident danger risk mentions significantly
It rises.
Although there is trained seeing-eye dog of going on a journey for blind person at present, it there is no and help hearing-impaired people's trip safely and effectively
Suggestion device.Therefore how to help hearing-impaired people in traffic trip, prompt the abnormal factors in ambient enviroment to prevent dangerous thing
It therefore is a urgent problem needed to be solved.
Chinese patent 201120471778.2 disclose one kind listen barrier people walk alarm, the device be based on infrared transmission/
Receiving converter detects the barrier of hearing-impaired people vision dead zone, and prompts user with mode of vibration, but be unable to disturbance in judgement
The orientation of object, and it is unable to cognitive disorders object.
Chinese patent 201410701079.0 discloses a kind of dress that hearing-impaired people's voice messaging is informed by vibration signal
It sets, the voice signal in ambient enviroment is acquired by acquisition module, voice messaging is converted into corresponding vibration signal after identification
Inform hearing-impaired people.Although this method can extract voice messaging, it is crucial to be only able to achieve the voice that identification is previously set
Word identification, and cannot judge sound bearing.
Chinese patent 201610877385.9 discloses a kind of intelligent glasses for speech recognition and Sign Language Recognition, can
Voice messaging is collected by microphone, radar collects sign language information, realizes the text of the voice conversion and voice messaging of sign language information
Word conversion.But the device can not achieve the function that prompt hearing-impaired people avoids risk there is no target source is positioned and identified
Energy.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of hearing-impaired people's traffic trip suggestion device, can to target into
Row positioning, and target type can be judged help user responded for different target, furthermore the plant bulk compared with
Small to be convenient for carrying easy to operate, target user is extensive.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of hearing-impaired people's traffic trip suggestion device, including signal acquisition module, target locating module, target identification mould
Block, memory module and message output module；
Signal acquisition module is used to acquire the abnormal sound-source signal in ambient enviroment, the output end difference of signal acquisition module
It is connected with the input terminal of target locating module and target identification module；
Target locating module is extracted and is resolved to the amplitude and phase property of the abnormal sound-source signal received, is obtained
The location information of abnormal sound source；
Target identification module is analyzed and processed the feature of the abnormal sound-source signal received, obtains the knowledge of target type
Other information；
Memory module includes cache unit and the matching unit for having vibration coding, and cache unit stores the location information
And identification information, different location informations and identification information are sent to information with vibration coding after corresponding vibration codes match
The output end of output module, target locating module and target identification module is connected with the input terminal of the memory module；
The vibration received is encoded and is exported in a manner of vibrating to prompt hearing-impaired people and show institute by message output module
The location information of abnormal sound source is stated, the input terminal of message output module is connected with the output end of memory module.
Further, signal acquisition module, target locating module, target identification module and memory module are set to headend equipment
In, message output module is set in terminal device, and the message output module is connected with wireless transmission method with memory module.
Further, which further includes the GPS positioning module in headend equipment, for determining the position of user
Information simultaneously shows location information on the terminal device.
Further, signal acquisition module includes acoustic sensor array for receiving surrounding abnormal sound signal and is used for
The signal conditioning module of filtering processing is amplified to abnormal sound signal, the acoustic sensor array is mounted on headend equipment
Upper surface is simultaneously connect with the signal conditioning module inside headend equipment, the output end of acoustic sensor array and signal conditioning module
Input terminal is connected, and the output end of signal conditioning module is connected with the input terminal of target locating module, target identification module respectively.
Further, the signal conditioning module includes power-supplying circuit, multistage amplifier circuit and filter circuit.
Further, the target locating module includes hardware cell and software unit, and the hardware cell includes amplification
Circuit, linear rectification circuit and peak-detector circuit, the amplitude and phase for extracting the abnormal sound signal transmitted are special
Sign；Software unit includes singlechip chip and location algorithm program, is obtained for carrying out analysis resolving to the signal characteristic of extraction
The location information of abnormal sound source.
Further, the target identification module includes hardware cell and software unit, and the hardware cell includes being used for
Single limit Zero-cross comparator circuit of the Zero-crossing Number feature of abnormal sound signal is extracted, the software unit in the target locating module is also
The amplitude characteristic and Zero-crossing Number feature of the abnormal sound signal that hardware cell extracts in target locating module, then benefit can be called directly
Abnormal sound signal is intercepted with double threshold method, software unit includes recognizer program, for analyzing abnormal sound signal characteristic
The identification information of target type is obtained afterwards.
Further, the headend equipment is epaulet, and the terminal device is bracelet.
Further, the vibration coding in the matching unit is long by the time for setting different comprising shaking several times
Short, vibration frequency and amplitude inform hearing-impaired people's abnormal object information.
Compared with prior art, the present invention its remarkable advantage is:
(1) apparatus of the present invention have the function of positioning and identification simultaneously, can prompt in the daily trip of hearing-impaired people
User avoids risk.
(2) present apparatus uses Hardware/Software Collaborative Design, reduces the complexity of software program as far as possible, reduces software processing
Time reduces using chip cost, realizes the real-time notification of abnormal object.
(3) present apparatus includes headend equipment and terminal device, and the two transmits data by bluetooth approach, is not necessarily to wiring, and
It is small in size to be convenient for carrying using the design form of epaulet and bracelet.
Detailed description of the invention
Fig. 1 is the information conveying flow figure of hearing-impaired people's traffic trip suggestion device of the invention.
Fig. 2 is the epaulet headend equipment schematic diagram of hearing-impaired people's traffic trip suggestion device of the invention.
Fig. 3 is the bracelet terminal device schematic diagram of hearing-impaired people's traffic trip suggestion device of the invention.
Fig. 4 is the target locating module hardware cell schematic diagram of hearing-impaired people's traffic trip suggestion device of the invention.
In figure: miniature signal acquisition module 1, target locating module 2, target identification module 3, message output module 6, storage
Module 4, GPS positioning module 5, terminal device 7, headend equipment 8.
Specific embodiment
With reference to the accompanying drawings of the specification, the present invention is further illustrated.
As shown in Figure 1-3, a kind of hearing-impaired people's traffic trip suggestion device, including miniature signal acquisition module 1, target are fixed
Position module 2, target identification module 3, memory module 4 and message output module 6, wherein miniature signal acquisition module 1, target position
Module 2, target identification module 3 and memory module 4 are set in headend equipment 8, and message output module 6 is set in terminal device 7；
Miniature signal acquisition module 1 is used to acquire abnormal sound-source signal in ambient enviroment, and by collected abnormal sound
Source signal is sent respectively to target locating module 2 and target identification module 3, the output end of miniature signal acquisition module 1 respectively with
Target locating module 2 is connected with the input terminal of target identification module 3；
Target locating module 2 is extracted and is resolved to the amplitude and/or phase property of the abnormal sound-source signal received,
Obtain the location information of abnormal sound source；
Target identification module 3 is analyzed and processed the feature of the abnormal sound-source signal received, obtains target type
Identification information；
Memory module 4 includes cache unit 41 and the matching unit 42 for having vibration coding, and cache unit 41 stores described
Location information and identification information, different location informations and identification information are sent out with vibration coding after corresponding vibration codes match
Give message output module 6, the input terminal of the output end and the memory module 4 of target locating module 2 and target identification module 3
It is connected；
The vibration received is encoded and is exported in a manner of vibrating to prompt hearing-impaired people by message output module 6, and information is defeated
The input terminal of module 6 is connected with the output end of memory module 4 out.
Further, which further includes the GPS positioning module 5 in headend equipment, for determining the position of user
Confidence ceases and shows location information on the terminal device.
Further, miniature signal acquisition module 1 includes the acoustic sensor array for receiving surrounding abnormal sound signal
11 and the signal conditioning module 12 for amplifying filtering processing to abnormal sound signal, before acoustic sensor array 11 is mounted on
The upper surface of end equipment 8 is simultaneously connect with the signal conditioning module 12 inside headend equipment 8, the output end of acoustic sensor array 11 with
The input terminal of signal conditioning module 12 is connected, and the output end of signal conditioning module 12 is known with target locating module 2, target respectively
The input terminal of other module 3 is connected.
Further, miniature acoustic sensor array is the four-element array being made of 4 miniature sonic transducers, output end point
It is not connected with the signal conditioning module of four-way.
Further, the signal conditioning module 12 includes power-supplying circuit, multistage amplifier circuit and filter circuit.
Further, the target locating module 2 includes hardware cell and software unit, as shown in Figs 1-4, the hardware
Unit includes amplifying circuit, linear rectification circuit and peak-detector circuit, the hardware cell input terminal and signal conditioning module 12
Output end is connected, by carrying out line rectification, capacitance integral to the signal of input, thus obtain the envelope of signal to get
To the amplitude and phase feature of the abnormal sound signal transmitted；Software unit includes singlechip chip and location algorithm journey
Sequence, wherein location algorithm program is according to " binaural effect ", i.e., by the volume difference and time difference differentiation sound bearing between ears
Effect, here using the amplitude of voice signal and phase property as distinguishing rule, judged with amplitude based on, i.e., amplitude is highest
Array element direction where voice signal is as master positioning direction, and the high array element direction of amplitude time is as auxiliary positioning direction；Phase is sentenced
Supplemented by disconnected, that is, array element where the voice signal arrived first at is main orientation, battle array where the second voice signal reached
Member is auxiliary orientation, to obtain the location information of abnormal sound source.
Further, the target identification module 3 includes hardware cell and software unit, and the hardware cell includes being used for
Extract single limit Zero-cross comparator circuit of the Zero-crossing Number feature of abnormal sound signal, the software unit in the target identification module 3
The amplitude characteristic for the abnormal sound signal that hardware cell extracts in target locating module 2 can also be called directly, double threshold is recycled
Method intercepts abnormal sound signal, and software unit includes recognizer program, for extracting the time domain and frequency domain of abnormal sound signal
Feature is vehicle when the Zero-crossing Number of this section of abnormal sound signal is greater than setting threshold value, being less than should by taking wherein Zero-crossing Number feature as an example
It behaves when threshold value, and various features is carried out with the identification information of acquisition target type after fusion judgement.
Further, miniature signal acquisition module 1, target locating module 2, target identification module 3 and memory module 4 are set to
In headend equipment 8, message output module 6 is set in terminal device 7, and the message output module 6 is in a manner of Bluetooth wireless transmission
It is connected with memory module 4, for being exported in a manner of vibration signal with positioning, recognition result corresponding vibration coding with prompt
Hearing-impaired people.
Further, the headend equipment 8 is epaulet, and the terminal device 7 is bracelet.
Further, memory module 4 is for storing the corresponding vibration coding of preset target keyword, coding tool
There is the ability of Situation Awareness, it can be determined that degree that the situation is critical carries out vibration coding；Vibration coding in the matching unit 42
Comprising shaking several times, hearing-impaired people's abnormal object is informed by setting different length of time, vibration frequency and amplitude
Information.The memory module uses storage chip, including cache unit and matching unit, and wherein cache unit has abnormal sound letter
Number and positioning, recognition result, matching unit store vibration coding corresponding with target identification result.
Working principle: when each array element of miniature acoustic sensor array 11 receives abnormal sound, by each road acoustical signal data
It is separately input in target locating module 2 and target identification module 3 after signal conditioning module amplification, filtering processing.In target
In locating module 2, amplifying circuit, linear rectification circuit and peak value are utilized to the data that acquisition module sends over by hardware cell
Detecting circuit extracts the amplitude and phase property of signal, and obtained characteristic information is sent to software unit.Software list
Member copies human ear to differentiate the principle in orientation, is analyzed and processed to the feature of hardware cell extraction, show that location information is sent to
Memory module 4.At the same time, it 3 in target identification module, calls directly in target locating module 2 by hardware cell extraction
The wherein amplitude characteristic of acoustical signal all the way, and the Zero-crossing Number feature of signal is extracted by hardware cell using single limit zero crossing circuitry, then
By software unit, abnormal sound signal is intercepted using double threshold method, by the miniature processing chip analysis signal of MCU after being AD converted
Feature, realizes target identification classification, and the result of acquisition sends memory module 4 to together.
Memory module 4 includes cache unit 41 and matching unit 42, and wherein cache unit 41 is for keeping in target identification mould
The positioning letter that block 3 intercepts obtained abnormal sound signal data and recognition result and 2 analysis of target locating module is handled
Breath, matching unit 42 has the vibration coding of different length of time, vibration frequency and amplitude, when cache unit 41 obtains not
After same targeting information and type information, it will be matched with the vibration coding in matching unit 42, it is wireless by bluetooth
Vibration coding among the above is sent to output module by the mode of transmission enables hearing-impaired people by different mode of vibrations, immediately
The information such as type and the distance of target are perceived, while positioning, recognition result are sent to bracelet terminal device 7, with
The mode of text is shown on bracelet display screen.GPS positioning module 5 in epaulet headend equipment 8 at the same time, can obtain in real time
The real-time position information of hearing-impaired people is taken, and terminal device 7 is sent to by bluetooth, is shown on bracelet display screen.
Basic principles and main features and advantage of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (9)
1. a kind of hearing-impaired people's traffic trip suggestion device, which is characterized in that including signal acquisition module, target locating module
(2), target identification module (3), memory module (4) and message output module (6)；
Signal acquisition module is used to acquire abnormal sound-source signal in ambient enviroment, the output end of signal acquisition module respectively with mesh
Mark locating module (2) is connected with the input terminal of target identification module (3)；
Target locating module (2) is extracted and is resolved to the amplitude and phase property of the abnormal sound-source signal received, is obtained
The location information of abnormal sound source；
Target identification module (3) is analyzed and processed the feature of the abnormal sound-source signal received, obtains the knowledge of target type
Other information；
Memory module (4) includes cache unit (41) and the matching unit (42) for having vibration coding, cache unit (41) storage
The location information and identification information, different location informations and identification information are compiled with the vibration after corresponding vibration codes match
Code is sent to message output module (6), the output end of target locating module (2) and target identification module (3) and the storage mould
The input terminal of block (4) is connected；
Message output module (6), which encodes the vibration received, to be exported in a manner of vibrating to prompt described in hearing-impaired people and display
The input terminal of the location information of abnormal sound source, message output module (6) is connected with the output end of memory module (4).
2. hearing-impaired people's traffic trip suggestion device according to claim 1, which is characterized in that signal acquisition module, mesh
It marks locating module (2), target identification module (3) and memory module (4) to be set in headend equipment (8), message output module (6) is set
In terminal device (7), the message output module (6) is connected with wireless transmission method with memory module (4).
3. hearing-impaired people's traffic trip suggestion device according to claim 2, which is characterized in that the device further includes being set to
GPS positioning module (5) in headend equipment, for determining the location information of user and showing location information in terminal device
On.
4. hearing-impaired people's traffic trip suggestion device according to claim 3, which is characterized in that signal acquisition module includes
For receiving the acoustic sensor array (11) of surrounding abnormal sound signal and for being amplified at filtering to abnormal sound signal
The signal conditioning module (12) of reason, the acoustic sensor array (11) are mounted on the upper surface of headend equipment (8) and set with front end
Standby (8) internal signal conditioning module (12) connection, output end and signal conditioning module (12) of acoustic sensor array (11)
Input terminal be connected, the output end of signal conditioning module (12) respectively with target locating module (2), target identification module (3) it is defeated
Enter end to be connected.
5. hearing-impaired people's traffic trip suggestion device according to claim 4, which is characterized in that the signal conditioning module
It (12) include power-supplying circuit, multistage amplifier circuit and filter circuit.
6. hearing-impaired people's traffic trip suggestion device according to claim 1, which is characterized in that the target locating module
It (2) include hardware cell and software unit, the hardware cell includes amplifying circuit, linear rectification circuit and peak detection electricity
Road, for extracting the amplitude and phase feature of the abnormal sound signal transmitted；Software unit includes singlechip chip and determines
Position algorithm routine obtains the location information of abnormal sound source for carrying out analysis resolving to the signal characteristic of extraction.
7. hearing-impaired people's traffic trip suggestion device according to claim 1, which is characterized in that the target identification module
It (3) include hardware cell and software unit, the hardware cell includes the Zero-crossing Number feature for extracting abnormal sound signal
Single to limit Zero-cross comparator circuit, the software unit in the target locating module (3) can also call directly in target locating module (2)
The amplitude characteristic and Zero-crossing Number feature for the abnormal sound signal that hardware cell extracts, recycle double threshold method to intercept abnormal sound message
Number, software unit includes recognizer program, for analyzing the identification information for obtaining target type after abnormal sound signal characteristic.
8. hearing-impaired people's traffic trip suggestion device according to claim 2, which is characterized in that the headend equipment (8)
For epaulet, the terminal device (7) is bracelet.
9. hearing-impaired people's traffic trip suggestion device according to claim 1, which is characterized in that the matching unit (42)
In vibration coding comprising shaking several times, barrier is listened to inform by the length of time, vibration frequency and the amplitude that set different
Personage's abnormal object information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811147614.7A CN109410522A (en) | 2018-09-29 | 2018-09-29 | A kind of hearing-impaired people's traffic trip suggestion device |
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| CN201811147614.7A CN109410522A (en) | 2018-09-29 | 2018-09-29 | A kind of hearing-impaired people's traffic trip suggestion device |
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| CN201811147614.7A Pending CN109410522A (en) | 2018-09-29 | 2018-09-29 | A kind of hearing-impaired people's traffic trip suggestion device |
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| CN112989101A (en) * | 2019-12-18 | 2021-06-18 | 深圳市三诺数字科技有限公司 | Reminding method, device, equipment and storage medium suitable for hearing-impaired patients |
| CN113975110A (en) * | 2021-10-20 | 2022-01-28 | 北京声智科技有限公司 | Blind guiding safety prompting method, blind guiding equipment, blind guiding device and electronic equipment |
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