CN107802472A - A kind of blind man's stick and its method with crossing alarm function - Google Patents
A kind of blind man's stick and its method with crossing alarm function Download PDFInfo
- Publication number
- CN107802472A CN107802472A CN201711176469.0A CN201711176469A CN107802472A CN 107802472 A CN107802472 A CN 107802472A CN 201711176469 A CN201711176469 A CN 201711176469A CN 107802472 A CN107802472 A CN 107802472A
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- China
- Prior art keywords
- control board
- stick
- blind man
- infrared
- crossing
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/068—Sticks for blind persons
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
Abstract
The invention discloses a kind of blind man's stick and its method with crossing alarm function, by setting flashing indicator light on blind man's stick, when infrared induction head senses the infrared signal of the positional information comprising crossing of Infrared Beacon Source transmitting, by feedback of the information to control board, control board control flashing indicator light realizes that quick flashing warns, prompting pedestrian and vehicle, which pay attention to slowing down, to be avoided, and is avoided visually impaired people from being collided and is produced danger, ensures the security that visually impaired people goes out.
Description
Technical field
The present invention relates to a kind of blind man's stick, more particularly to a kind of blind man's stick and its method with crossing alarm function.
Background technology
When visually impaired people is when by road or crossroad, whether visually impaired people has because vision disorder can not be discovered
Pedestrian or vehicle are by road, and at this moment, how passing pedestrian and vehicle, which pay attention to slowing down in time, avoids, and avoids visually impaired
Personage is collided and produces danger, is a urgent problem to be solved.
Therefore, prior art has yet to be improved and developed.
The content of the invention
It is an object of the invention to provide a kind of blind man's stick and its method with crossing alarm function, it is intended to solve how mistake
Past pedestrian and vehicle pays attention to the problem of avoiding visually impaired people of slowing down in time.
Technical scheme is as follows：A kind of blind man's stick with crossing alarm function, including blind man's stick body, the blind man's stick
Body includes lever and stick stem, the lever and the orthogonal setting of stick stem；Wherein, it is provided with infrared induction on blind man's stick body
Head, the infrared signal for including positional information of infrared induction head sensing Infrared Beacon Source transmitting；Control electricity is provided with lever
Road plate, the infrared induction head are connected with control board；Flashing indicator light, the flicker instruction are provided with blind man's stick body
Lamp is connected with control board：When infrared induction head senses the infrared of the positional information comprising crossing of Infrared Beacon Source transmitting
During signal, by feedback of the information to control board, control board control flashing indicator light realizes that quick flashing warns, prompts passing row
People and vehicle, which pay attention to slowing down, to be avoided, and is avoided visually impaired people from being collided and is produced danger.
The described blind man's stick with crossing alarm function, wherein, the blind man's stick with crossing alarm function also includes setting
The sound prompt device on lever is put, the sound prompt device is connected with control board：When visually impaired people holds blind man's stick
Outgoing, infrared induction head carries out infrared signal incessantly and sensed, when infrared induction head senses Infrared Beacon Source transmitting
During infrared signal comprising positional information, by feedback of the information to control board, control board control sound prompt device hair
Go out prompting, prompt the current positional information of visually impaired people or the positional information of destination.
The described blind man's stick with crossing alarm function, wherein, optical sensor is set on blind man's stick body, and the flicker refers to
Show that lamp is connected with control board, optical sensor is connected with control board：Optical sensor sense senses the light of surrounding environment in real time
Line brightness, and the light luminance detected is fed back into control board, when control board judges light luminance less than default
During value, control board control flashing indicator light realizes automatic slow flash warning, prompts the people of surrounding and nearby has depositing for visually impaired people
, it is noted that avoid；When control board judges that light luminance is higher than preset value, control board control flashing indicator light stops
Only flash.
The described blind man's stick with crossing alarm function, wherein, the infrared induction head is arranged on lever or is arranged on
In stick stem.
The described blind man's stick with crossing alarm function, wherein, the infrared induction head is arranged on lever and stick stem.
The described blind man's stick with crossing alarm function, wherein, the Infrared Beacon Source, which is arranged on, any facilitates infrared sense
Answer the place that head senses.
The described blind man's stick with crossing alarm function, wherein, the infrared signal of the Infrared Beacon Source transmitting includes respectively
Kind positional information.
The described blind man's stick with crossing alarm function, wherein, menu setecting knob is provided with the rear end face of lever,
There is ACK button in the end set of menu setecting knob, the menu setecting knob is connected with control board, ACK button
It is connected with control board.
A kind of environment self-adaption alarming method for power of the blind man's stick with crossing alarm function described in any one as described above, its
In, specifically include following steps：
Step S1：Optical sensor sense senses the light luminance of surrounding environment in real time, and the light luminance detected is fed back into control
Circuit board processed；
Step S2：Control board judges whether light luminance is less than preset value, is, performs step S3- steps S6, no, execution
Step S7；
Step S3：Control board control flashing indicator light realizes automatic slow flash warning, prompts the people of surrounding and nearby has visually impaired people
The presence of scholar, it is noted that avoid, control board judges whether light luminance is less than preset value, is simultaneously, performs step S4,
It is no, perform step S5- steps S6；
Step S5：Repeat step S3；
Step S6：Control board control flashing indicator light stops flicker；
Step S7：Repeat step S2；
Step S8：Repeat step S2.
A kind of crossing alarming method for power of the blind man's stick with crossing alarm function described in any one as described above, wherein, specifically
Comprise the following steps：
Step A1：Visually impaired people holds blind man's stick and gone out, and infrared induction head carries out infrared signal incessantly and sensed；
Step A2：When infrared induction head senses the infrared signal of the positional information for including crossing of Infrared Beacon Source transmitting
When, by feedback of the information to control board；
Step A3：Control board control flashing indicator light realizes that quick flashing warns, and prompts pedestrian and vehicle to pay attention to slowing down
Avoid；
Step A4：Behind crossing, control flashing indicator light stops quick flashing warning.
Beneficial effects of the present invention：The present invention is led to by providing a kind of blind man's stick and its method with crossing alarm function
Cross and flashing indicator light is set on blind man's stick, when infrared induction head senses the positional information for including crossing of Infrared Beacon Source transmitting
Infrared signal when, by feedback of the information to control board, control board control flashing indicator light realizes that quick flashing warns, and prompts
Pedestrian and vehicle, which pay attention to slowing down, to be avoided, and is avoided visually impaired people from being collided and is produced danger, ensures that visually impaired people goes out
Security.
Brief description of the drawings
Fig. 1 is the structural representation of the blind man's stick with crossing alarm function in the present invention.
Fig. 2 is the step flow chart of the environment self-adaption alarming method for power of the blind man's stick with crossing alarm function in the present invention.
Fig. 3 is the step flow chart of the crossing alarming method for power of the blind man's stick with crossing alarm function in the present invention.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, the feature of " second " can be expressed or implicitly includes one or more feature.
In description of the invention, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only example, and
And purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or setting
Relation.In addition, the invention provides various specific techniques and material examples, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
As shown in figure 1, a kind of blind man's stick with crossing alarm function, including blind man's stick body, the blind man's stick body include holding
Handle 100 and stick stem 200, the 200 orthogonal setting of the lever 100 and stick stem；Infrared induction head is provided with blind man's stick body
300, the infrared signal for including positional information of the first 300 sensing Infrared Beacon Source transmitting of infrared induction；It is provided with lever 100
Control board, the infrared induction first 300 are connected with control board；Flashing indicator light, institute are provided with blind man's stick body
Flashing indicator light is stated to be connected with control board：Gone out when visually impaired people holds blind man's stick, infrared induction first 300 is carried out incessantly
Infrared signal senses, when infrared induction first 300 senses the infrared signal comprising positional information of Infrared Beacon Source transmitting,
By feedback of the information to control board, the position of the current positional information of control board control prompting visually impaired people or destination
Information, visually impaired people is helped smoothly to arrive at；When infrared induction first 300 sense Infrared Beacon Source transmitting include crossing
Positional information infrared signal when, by feedback of the information to control board, control board control flashing indicator light is realized fast
Warning is dodged, prompts pedestrian and vehicle to pay attention to avoidance of slowing down, avoids visually impaired people from being collided and produce danger, ensure to regard
The security that barrier personage goes out.
The technical program need not connect the position that network can make visually impaired people obtain current positional information or destination
Information, simple to operate, cost is low, avoids network obstructed or network obstacles cause visually impaired people can not obtain positional information
Problem.
Specifically, in order that visually impaired people's quick sensing positional information, the blind man's stick with crossing alarm function also wrap
The sound prompt device being arranged on lever 100 is included, the sound prompt device is connected with control board：When visually impaired people's hand
Blind man's stick is held to go out, infrared induction first 300 carry out incessantly infrared signal sensing, when infrared induction first 300 sense it is infrared
During the infrared signal comprising positional information of beacon source transmitting, by feedback of the information to control board, control board control sound
Sound suggestion device sends prompting, prompts the current positional information of visually impaired people or the positional information of destination, helps visually impaired people
Smoothly arrive at.
When surrounding environment light is dimmed, visually impaired people is because vision disorder can not be discovered in time, at this moment, how to allow around
People know the presence of visually impaired people and avoided, avoid visually impaired people from being collided and produce danger, in order to solve this
One problem, the technical program are set as follows：Optical sensor, the flashing indicator light and control board are set on blind man's stick body
Connection, optical sensor are connected with control board：Optical sensor sense senses the light luminance of surrounding environment in real time, and will detect
Light luminance feed back to control board, when control board judges that light luminance is less than preset value, control board control
Flashing indicator light processed realizes automatic slow flash warning, prompts the people of surrounding nearby to have the presence of visually impaired people, it is noted that to avoid；Work as control
When circuit board processed judges that light luminance is higher than preset value, control board control flashing indicator light stops flicker.
Specifically, the quantity of the infrared induction first 300 according to be actually needed set.The infrared induction first 300 can be with
It is arranged on blind man's stick body anywhere, as long as can meet convenient sensing infrared signal, the infrared induction first 300 can be with
It is arranged on lever 100；Infrared induction first 300 can be arranged in stick stem 200；Infrared induction first 300 can be arranged on lever
100 and stick stem 200 on.
Specifically, the Infrared Beacon Source can be arranged on any place for facilitating infrared induction first 300 to sense,
On wall（On wall on indoor wall, outdoor, etc.）, on direction board, Men Shang, on ground（As on the ground of crossing, sidewalk for visually impaired people
On, etc.）, on indoor roof, etc..The infrared signal of the Infrared Beacon Source transmitting includes various positional informations, e.g., sets
The infrared signal of the short length of Infrared Beacon Source transmitting two on the door of a wheaten food shops, the signal is comprising " XX noodle bars exist
You front " positional information；The multiple different frequencies of Infrared Beacon Source sequential transmission being arranged on the direction board in certain market
The infrared signal of rate, these infrared signals include multiple positional informations, such as " toilet on your left side, counseling platform immediately ahead of you,
Tri- building, XX Dian ", etc.；Such as, multiple Infrared Beacon Sources are provided with the roof of hospital, the transmitting of these Infrared Beacon Sources is different
The infrared signal of frequency, these infrared signals include different positional informations respectively, and such as " paediatrics is in Stall ", " internal medicine is before you
Side ", " ENT dept. is on your left side " etc..
When visually impaired people wants to go to somewhere, destination can be quickly found out in order to facilitate blind man's stick, after lever 100
Menu setecting knob is provided with end face, has ACK button, the menu setecting knob in the end set of menu setecting knob
It is connected with control board, ACK button is connected with control board：Such as, when visually impaired people wants to go to toilet, turn is passed through
Menu setecting knob, per one gear of turn, control board control sound prompt device sends the prompting of " XX menu setectings ",
When menu setecting knob rotates to " destination selection " gear, control board control sound prompt device sends " destination
Selection " prompting, visually impaired people press ACK button, and system enters " destination selection " menu, and visually impaired people continues rotary menu
Knob is selected, per one gear of turn, control board control sound prompt device sends " counseling platform ", " toilet ", " doctor
Prompt to the purpose of institute ", when menu setecting knob rotates to " toilet " gear, control board control sound prompt device
" toilet " prompting is sent, visually impaired people presses ACK button, and system confirms that destination is toilet；Control board control is red
The outer automatic sensing of inductive head 300 includes the infrared signal of " toilet " positional information, when infrared induction first 300 senses infrared letter
During the infrared signal comprising setting destination locations information of mark source transmitting, by feedback of the information to control board, control circuit
Plate control sound prompt device sends " toilet is in your XX orientation " prompting, and instruction visually impaired people smoothly arrives at.
As shown in Fig. 2 a kind of environment self-adaption alarming method for power of the blind man's stick with crossing alarm function as described above,
Specifically include following steps：
Step S1：Optical sensor sense senses the light luminance of surrounding environment in real time, and the light luminance detected is fed back into control
Circuit board processed；
Step S2：Control board judges whether light luminance is less than preset value, is, performs step S3- steps S6, no, execution
Step S7；
Step S3：Control board control flashing indicator light realizes automatic slow flash warning, prompts the people of surrounding and nearby has visually impaired people
The presence of scholar, it is noted that avoid, control board judges whether light luminance is less than preset value, is simultaneously, performs step S4,
It is no, perform step S5- steps S6；
Step S5：Repeat step S3；
Step S6：Control board control flashing indicator light stops flicker；
Step S7：Repeat step S2；
Step S8：Repeat step S2.
As shown in figure 3, a kind of crossing alarming method for power of the blind man's stick with crossing alarm function as described above, specific bag
Include following steps：
Step A1：Visually impaired people holds blind man's stick and gone out, and infrared induction first 300 carries out infrared signal sensing incessantly；
Step A2：When infrared induction first 300 senses the infrared letter of the positional information for including crossing of Infrared Beacon Source transmitting
Number when, by feedback of the information to control board；
Step A3：Control board control flashing indicator light realizes that quick flashing warns, and prompts pedestrian and vehicle to pay attention to slowing down
Avoid；
Step A4：Behind crossing, control flashing indicator light stops quick flashing warning.
The technical program on blind man's stick by setting flashing indicator light, when infrared induction first 300 senses Infrared Beacon Source
During the infrared signal of the positional information comprising crossing of transmitting, by feedback of the information to control board, control board control is dodged
Bright indicator lamp realizes that quick flashing warns, and prompts pedestrian and vehicle to pay attention to slowing down and avoid, avoid visually impaired people be collided and
Danger is produced, ensures the security that visually impaired people goes out.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Specific features, structure, material or feature are contained at least one embodiment or example of the present invention.In this specification
In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (10)
1. a kind of blind man's stick with crossing alarm function, including blind man's stick body, the blind man's stick body includes lever and stick stem, described
Lever and the orthogonal setting of stick stem；Characterized in that, infrared induction head is provided with blind man's stick body, the sensing of infrared induction head
The infrared signal for including positional information of Infrared Beacon Source transmitting；Control board, the infrared induction are provided with lever
Head is connected with control board；Flashing indicator light is provided with blind man's stick body, the flashing indicator light connects with control board
Connect：It is when infrared induction head senses the infrared signal of the positional information comprising crossing of Infrared Beacon Source transmitting, information is anti-
Control board is fed to, control board control flashing indicator light realizes that quick flashing warns, prompts pedestrian and vehicle to pay attention to
Slow down and avoid, avoid visually impaired people from being collided and produce danger.
2. the blind man's stick according to claim 1 with crossing alarm function, it is characterised in that described that there is crossing warning work(
The blind man's stick of energy also includes the sound prompt device being arranged on lever, and the sound prompt device is connected with control board：When
Visually impaired people holds blind man's stick and gone out, and infrared induction head carries out infrared signal incessantly and sensed, when infrared induction head senses
During the infrared signal comprising positional information of Infrared Beacon Source transmitting, by feedback of the information to control board, control board control
Sound prompt device processed sends prompting, prompts the current positional information of visually impaired people or the positional information of destination.
3. the blind man's stick according to claim 1 with crossing alarm function, it is characterised in that set on blind man's stick body
Optical sensor is put, the flashing indicator light is connected with control board, and optical sensor is connected with control board：Optical sensor sense
The light luminance of sensing surrounding environment in real time, and the light luminance detected is fed back into control board, work as control board
When judging that light luminance is less than preset value, control board control flashing indicator light realizes automatic slow flash warning, prompts surrounding
People nearby has the presence of visually impaired people, it is noted that avoids；When control board judges that light luminance is higher than preset value, control electricity
Road plate control flashing indicator light stops flicker.
4. the blind man's stick according to claim 1 with crossing alarm function, it is characterised in that the infrared induction head is set
On lever or it is arranged in stick stem.
5. the blind man's stick according to claim 1 with crossing alarm function, it is characterised in that the infrared induction head is set
On lever and stick stem.
6. the blind man's stick according to claim 1 with crossing alarm function, it is characterised in that the Infrared Beacon Source is set
Where just the place in office that infrared induction head senses.
7. the blind man's stick according to claim 1 with crossing alarm function, it is characterised in that the Infrared Beacon Source transmitting
Infrared signal include various positional informations.
8. the blind man's stick according to claim 1 with crossing alarm function, it is characterised in that set on the rear end face of lever
Menu setecting knob is equipped with, has ACK button, the menu setecting knob and control electricity in the end set of menu setecting knob
Road plate connection, ACK button are connected with control board.
A kind of 9. environment self-adaption warning side of blind man's stick with crossing alarm function as described in claim any one of 1-8
Method, it is characterised in that specifically include following steps：
Step S1：Optical sensor sense senses the light luminance of surrounding environment in real time, and the light luminance detected is fed back into control
Circuit board processed；
Step S2：Control board judges whether light luminance is less than preset value, is, performs step S3- steps S6, no, execution
Step S7；
Step S3：Control board control flashing indicator light realizes automatic slow flash warning, prompts the people of surrounding and nearby has visually impaired people
The presence of scholar, it is noted that avoid, control board judges whether light luminance is less than preset value, is simultaneously, performs step S4,
It is no, perform step S5- steps S6；
Step S5：Repeat step S3；
Step S6：Control board control flashing indicator light stops flicker；
Step S7：Repeat step S2；
Step S8：Repeat step S2.
10. a kind of crossing alarming method for power of blind man's stick with crossing alarm function as described in claim any one of 1-8, it is special
Sign is, specifically includes following steps：
Step A1：Visually impaired people holds blind man's stick and gone out, and infrared induction head carries out infrared signal incessantly and sensed；
Step A2：When infrared induction head senses the infrared signal of the positional information for including crossing of Infrared Beacon Source transmitting
When, by feedback of the information to control board；
Step A3：Control board control flashing indicator light realizes that quick flashing warns, and prompts pedestrian and vehicle to pay attention to slowing down
Avoid；
Step A4：Behind crossing, control flashing indicator light stops quick flashing warning.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711176469.0A CN107802472A (en) | 2017-11-22 | 2017-11-22 | A kind of blind man's stick and its method with crossing alarm function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711176469.0A CN107802472A (en) | 2017-11-22 | 2017-11-22 | A kind of blind man's stick and its method with crossing alarm function |
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| CN107802472A true CN107802472A (en) | 2018-03-16 |
Family
ID=61589437
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| CN201711176469.0A Pending CN107802472A (en) | 2017-11-22 | 2017-11-22 | A kind of blind man's stick and its method with crossing alarm function |
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| CN205494329U (en) * | 2016-03-23 | 2016-08-24 | 张耐华 | Intelligence is saved oneself and is led blind walking stick |
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