CN106450685A - Shoelace antenna for blind walking anti-collision - Google Patents
Shoelace antenna for blind walking anti-collision Download PDFInfo
- Publication number
- CN106450685A CN106450685A CN201611073712.1A CN201611073712A CN106450685A CN 106450685 A CN106450685 A CN 106450685A CN 201611073712 A CN201611073712 A CN 201611073712A CN 106450685 A CN106450685 A CN 106450685A
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- CN
- China
- Prior art keywords
- shoestring
- antenna
- anticollision
- blind person
- shoelace
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C9/00—Laces; Laces in general for garments made of textiles, leather, or plastics
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C9/00—Laces; Laces in general for garments made of textiles, leather, or plastics
- A43C9/08—Laces; Laces in general for garments made of textiles, leather, or plastics made of paper or wire
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
The invention provides a shoelace antenna for blind walking anti-collision. The shoelace antenna for blind walking anti-collision comprises a shoelace tied on a shoe and a feeding terminal. A metal wire is embedded in the shoelace. The feeding terminal comprises a coaxial connector, a microwave dielectric substrate and a metal ground pile. The microwave dielectric substrate is positioned above the metal ground pile. The coaxial connector passes through the microwave dielectric substrate and the metal ground pile. The coaxial connector comprises a probe connected with the shoelace. The shoelace is used as an irradiator. The feeding is realized by the probe. The shoelace antenna for blind walking anti-collision is applied to the anti-collision detection in the walking process of the blind people, is used as a common tool in future, and is popularized and applied to various fields, such as wireless navigation and positioning, space electromagnetic energy collection and charging, human body central network and digital multimedia, internet of Things and smart city, smart home, and exercise and medicine and health data collection and live transmission. The prospect is extensive.
Description
Technical field
The present invention relates to communication technique field, especially, it is related to a kind of shoestring antenna of anticollision of walking for blind person.
Background technology
In prior art, common wireless system includes radar, communication, navigation etc., and its antenna is typically metal material, or
Metal and the mixed structure of solid dielectric.In wearable field, both at home and abroad in recent years associated antenna realization means mainly include with
Lower several respects：
First, contain the miniaturized planar antenna of nano silver wire, first by template, nano silver wire be arranged as specific pattern,
Then layer overlay liquid polymerses, after thing solidification to be polymerized, form the elastomeric material comprising expected pattern, this pattern material energy
Constitute the radiation assembly with paster antenna, by adjusting its shape, control operating frequency of antenna.
2nd, Metal buttonses or metal buckle antenna, size is little, has certain radianting capacity, longer, frequently for wavelength
The higher system of rate, its electric size is just advantageous.
3rd, the logo antenna of sewing material, has the mark (logo) on paper studies case and bag, clothes in recent years as antenna
Carry out wearable system radiation and reception instrument, the antenna of the LV LV shape that such as Korea S delivers for 2015, using tool
There is the original sewing material of material substitution of certain electric conductivity, keep trade mark shape and size constant.Somebody's research uses Fructus Mali pumilae
(Apple Inc.) company notched apple form designing antenna, application fibrous material makes to be realized, and also obtain certain
Radiation and receiving ability.
4th, the deformed Oscillators antenna of metal material, loop antenna etc., small-sized, in integrated system, with the handss of current main flow
Machine antenna is similar to, generally less than antenna for mobile phone.
5th, microstrip antenna, metal flat fractal antenna etc., principle and the method such as application bending, self similarity, compress micro- as far as possible
Tape base plate thickness, reduces antenna size and weight.
At the information-based aspect of sport shoess, the correlation technique occurring in recent years and studying includes：
First, the function of automatically tying the shoelace of Nike (Nike) company, installs motion perception sensor, automatic control system, auxiliary
User is helped to use.
2nd, Li Ning (Li Ning) company is cooperated with Semen setariae company, develops sole embedded chip and small-sized micro electric subsystem
System.
3rd, the company such as Adidas (Adidas) implants chip in sole, monitors the daily motion conditions of user.
In blind person's walking navigation field, the technological means occurring in recent years and instrument mainly include：
First, the route guidance of satellite navigation system, relies on Google Maps (Google Map), with voice or shaking sensor
Mode user is reminded.
2nd, the image recognition based on camera system is navigated, and installs photographic head, identification barrier on the walking stick of blind person or on arm
Hinder thing and traffic lights.
3rd, the traveling based on ultrasonic system is navigated, with ultrasonic system detecting obstacles thing and remind user.
The equal Shortcomings of antenna of application in prior art, concrete condition is as follows：
First, the deficiency of cloth fabric antenna, weak mainly due to its electric conductivity, lead to radianting capacity weak, radiation gain is low,
Overall efficiency is not high, and energy loss is larger；Deformed Oscillators antenna and loop antenna, and button antenna and belt fastener antenna etc., have
Individual common feature is that physical size is little, and limited by electric size, radiation directivity is weaker, and radiation and reception radio energy not collect
In；Microstrip antenna, fractal antenna etc., for user's request, volume is still not little, and it is not also particularly convenient for installing,
Because it projects structure for peripheral hardware, fixing fixing and volume take unavoidably.
2nd, the information system of sports wear manufacturer exploitation at present, does not all provide microwave sounding function.
3rd, the blind man navigation based on map can not detect the common barrier on road；Navigation feature based on photographic head is still
Fully do not test, the imaging aspect such as discrimination and recognition speed is still needed improvement.
Content of the invention
Present invention aim at providing a kind of shoestring antenna of anticollision of walking for blind person, to solve that electric conductivity is weak, to lead to
The technical problem such as radianting capacity is strong, radiation gain is low, energy loss is larger, physical size is little, electric size is limited.
For achieving the above object, the invention provides a kind of shoestring antenna of anticollision of walking for blind person, including lying in footwear
On shoestring 1 and feed end 2, described shoestring 1 is implanted with tinsel.
Described feed end 2 includes coaxial fitting 21, microwave-medium substrate 23 and metal ground 24, described microwave-medium substrate 23
Above metal ground 24, described coaxial fitting 21 runs through microwave-medium substrate 23 and metal ground 24 setting.
Described coaxial fitting 21 includes the probe 22 being connected with shoestring 1.
Preferably, described shoestring 1 inner wire is iron wire, and described iron wire radius is 0.3mm.
Preferably, described shoestring 1 adopts decussation clone in footwear hole, and in being locked by bowknot away from toe cap a line
Tightly.
Preferably, described microwave-medium substrate 23 material is FR-4, and dielectric constant is 4.3, described microwave-medium substrate 23
It is equal to the square of 20mm with metal ground 24 for the length of side.
Preferably, described probe 22 length is 4.435mm, a diameter of 1.2mm.
Preferably, described microwave-medium substrate 23 thickness is 1.6mm, and metal ground 24 thickness are 0.035mm.
Preferably, a diameter of 4mm of described coaxial fitting 21.
Preferably, described shoestring 1 and plane-parallel first, second, third and fourth, five elements' length be respectively 32mm, 38mm,
44mm, 50mm, 56mm, in the ranks distance is 22mm to described shoestring 1, and described bowknot two ends longest distance is 78mm.
Preferably, described feed end 2 be located at bowknot below, rear, top, near below the cross point of bowknot or
At near above the cross point of bowknot at least one.
The invention has the advantages that：
A kind of shoestring antenna of anticollision of walking for blind person of the present invention, including the shoestring lying on footwear and feed end, institute
State shoestring and be implanted with tinsel, when being embodied as, also can be by being metallized to shoestring or with string around the side such as metal fine
Formula realizes electric conductivity.Described feed end includes coaxial fitting, microwave-medium substrate and metal ground, and described microwave-medium substrate is located at
Above metal ground, described coaxial fitting is arranged with running through microwave-medium substrate and metal；Described coaxial fitting is included with shoestring even
The probe connecing, feed is realized by described probe；Using being provided with shoestring wiry as radiant body, there is certain electromagnetism spoke
Penetrate ability and pattern characteristics, both there is effect that need not be separately installed, easy to carry, enable electromagnetic energy skyborne again
Distribution (as transmitting antenna use) or possess from the function of certain areas captured electromagnetic signal aerial and energy (as reception antenna
With), practical.
A kind of shoestring antenna for blind person's walking anticollision of the present invention is easy for installation, and electrical length is variable, and structure is firm, valency
Lattice are low, lightweight, small volume, mitigate user and use burden, and the anticollision being applied in blind person's walking process detects；Expection can conduct
A kind of more general instrument, is applied to wireless navigation and positioning, spatial electromagnetic collection of energy and charging, human body central network
Network and digital multimedia, Internet of Things and smart city, smart home, motion and medical science and health data collection and real-time Transmission etc.
Multiple fields, have a extensive future.
Heretofore described feed end also includes micro-strip medium substrate, and described coaxial fitting extends vertically through described micro-strip medium
Substrate is arranged.This micro-strip medium substrate is used for carrying out auxiliary feed；In practical application, this micro-strip medium substrate can reduce chi
Very little or up-sizing or cancel this part, micro-strip medium substrate mainly affect antenna before and after the ratio of radianting capacity and increasing most
The concrete numerical value of benefit, but the serious reduction of technical parameters and performance will not be caused.
Heretofore described feed end be located at bowknot below, rear, top, near below the cross point of bowknot or
At near above the cross point of bowknot at least one, position difference mainly affects the height of impedance matching performance and operating frequency
Low, different demands can be met.
In the present invention shoestring antenna can achieve the front upper place space around shoes is covered, shoestring be in lax, in
There is slight impact Deng, tie-down state to Antenna Impedance Matching characteristic, the main concrete numerical value affecting reflection coefficient, without
Operating frequency is caused to drift about, the radiation directivity of antenna is related to shoelace tightness degree.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description
The accompanying drawing constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the shoestring antenna partial structural diagram of the anticollision of walking for blind person of the preferred embodiment of the present invention；
Fig. 2 is the shoestring antenna feed end-view of the anticollision of walking for blind person of the preferred embodiment of the present invention；
Fig. 3 is the shoestring antenna feed end top view of the anticollision of walking for blind person of the preferred embodiment of the present invention；
Fig. 4 is the lower section positioned at bowknot for the feed end, rear and the friendship near bowknot of the preferred embodiment of the present invention
The reflection coefficient chart of crunode lower position；
Fig. 5 is that the shoestring of the preferred embodiment of the present invention is in the vertical polarization radiation direction under lax, medium, tie-down state
Figure；
Fig. 6 is that the shoestring of the preferred embodiment of the present invention is in the horizontal polarization radiation direction under lax, medium, tie-down state
Figure；
Fig. 7 is that the shoestring of the preferred embodiment of the present invention is in greatest irradiation direction tangent plane under lax, medium, tie-down state
Directional diagram；
Fig. 8 is the shoestring antenna actual measurement of the preferred embodiment of the present invention and the reflection coefficient contrast of emulation；
Fig. 9 is the simulation result of shoestring radiation pattern and measured data (the vertical pole of the preferred embodiment of the present invention
Change, 2.43GHz).
In figure：1st, shoestring, 2, feed end, 21, coaxial fitting, 22, probe, 23, microwave-medium substrate, 24, metal ground.
Specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can limit according to claim
Multitude of different ways that is fixed and covering is implemented.
Embodiment 1
The present embodiment selects the serial running shoe of Nike Air Huarache Run 819685, sole outline length
31.5cm, footwear body is respectively provided on two sides with two rows and is used for fastening shoestring and the footwear hole for 9mm for the homonymy horizontal range.
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of shoestring antenna of anticollision of walking for blind person, include the shoestring 1 that lies on footwear and
Feed end 2, described shoestring 1 is implanted with tinsel.Described feed end 2 includes coaxial fitting 21, microwave-medium substrate 23 and metal
Ground 24, described microwave-medium substrate 23 is located above metal ground 24, and described coaxial fitting 21 runs through microwave-medium substrate 23 and gold
Possession 24 is arranged；Described coaxial fitting 21 includes the probe 22 being connected with shoestring 1, and feed is realized by described probe 22.
Described shoestring 1 inner wire is iron wire, and described iron wire radius is 0.1～3mm；Described shoestring 1 adopts decussation
Clone in footwear hole, and in being locked by bowknot away from toe cap a line.
Described microwave-medium substrate 23 material is FR-4 (epoxy glass fiber plate), and dielectric constant is 4.3, and described microwave is situated between
Matter substrate 23 and metal ground 24 be the length of side equal to 20mm square.Described probe 22 length is 4.435mm, a diameter of 1.2mm；
Described microwave-medium substrate 23 thickness is 1.6mm, and metal ground 24 thickness are 0.035mm.The a diameter of 4mm of described coaxial fitting 21.
The first, second, third and fourth of described shoestring 1 and plane-parallel, five elements' length be respectively 32mm, 38mm, 44mm,
50mm, 56mm, in the ranks distance is 22mm to described shoestring 1, and described bowknot two ends longest distance is 78mm.Described feed end 2
Below the bowknot, rear, top, near the cross point of bowknot below or near the cross point of bowknot above extremely
At few one.
Shoestring is implanted into tinsel (tinsel radius is 0.1～3mm) or shoestring metallization all can be obtained effective sky
Line impedence matching and radiance；In order to realize preferably radiating sensing, that is, beam main lobe points to the front upper place of direction of travel,
Should be insulated in the cross point of metallization shoestring, but insulation processing at bowknot, need not be carried out.
For the present embodiment for blind person walk anticollision shoestring antenna, microwave dark room carry out antenna reflection coefficient,
Antenna pattern etc. is tested, and using An Li Anritsu company 37369A vector network analyzer, coordinates ultra broadband ridged horn sky
Line (1-12GHz) and horizontal single axle table, complete the technical specifications such as voltage standing wave ratio, directional diagram test, respectively obtain level and
Vertical polarization directions data.As transmitting terminal, shoestring antenna is positioned on turntable ridged horn antenna, as receiving terminal, two
Antenna distance 5m, highly consistent, transmission signal simultaneously reads the S parameter that arrow is netted, a width of 40MHz-3.0GHz of calibration tape, and situation is such as
Under：
Fig. 4 is located at the reflection of the lower section, rear and the cross point lower position near bowknot of bowknot for feed end
Charts for finned heat；Fig. 5 is in the vertical polarization antenna pattern under lax, medium, tie-down state for shoestring；Fig. 6 is at shoestring
Horizontal polarization antenna pattern under lax, medium, tie-down state；Fig. 7 is under lax, medium, tie-down state for shoestring
Along respective greatest irradiation direction tangent plane, its polar coordinate antenna pattern (lax, medium and state of fastening correspond to respectively 122 degree,
155 degree and 176 degree)；Fig. 8 is the reflection coefficient contrast of the actual measurement of shoestring antenna and emulation；Fig. 9 is shoestring radiation pattern
Simulation result and measured data (vertical polarization, 2.43GHz).
Can be seen that from Fig. 4～Fig. 9, antenna reflection coefficient and level, vertical polarization directions figure (three-dimensional figure and two-dimentional pole
Coordinate direction figure all coincide very well, only illustrates two-dimentional polar coordinate directional diagram herein) measured data coincide with simulation result
Preferably, demonstrate the effectiveness of slide fastener antenna.
In terms of impedance matching property, usually require that reflection coefficient is less than -10dB, when feed end is located near bowknot
Cross point lower position when resonance point unique, be in 2.45GHz, industry, scientific research, medical field can freely use
ISM (Industrial Scientific Medical) frequency range；When distributing point is located at bowknot rear, there are multiple resonance points
With work band.
Such shoes footwear body left and right sides all has two round holes it is contemplated that user's practical situation, when outside Shoestring tying shoes
During side cavities (longer with every a line length of plane-parallel), shoestring is in relaxed state；When shoestring lies in inner side hole not
During special tie-down, shoes are in fair state；When shoestring lies in inner side hole (shorter with every a line length of plane-parallel),
It is in the state of tightening；In terms of antenna radiation pattern and gain characteristic, measured data shows, the maximum direction of radiation, beam main lobe
The parameters such as width, secondary lobe height all have large change；Table 1 gives under above-mentioned three kinds of different conditions, shoestring antenna beam main lobe
Width and the numerical value of gain.
Antenna main lobe width and gain (vertical polarization) under table 1 shoestring different conditions
| Shoestring state | Main lobe width (°) | Gain (dBi) |
| Lax | 122 | 10.96 |
| Medium | 155 | 9.71 |
| Fasten | 176 | 8.59 |
Lax, medium and state of fastening corresponds to 122 degree, 155 degree and 176 degree respectively, and table 2 gives greatest irradiation direction and cuts
The beam angle in face and gain data.
3 decibels of width in antenna greatest irradiation direction and gain under table 2 shoestring different conditions
| Shoestring state | 3 decibels of width (°) | Gain (dBi) |
| Lax | 25.5 | 9.07 |
| Medium | 39.0 | 6.52 |
| Fasten | 36.1 | 9.50 |
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of shoestring antenna for blind person's walking anticollision is it is characterised in that include lying in shoestring (1) and the feed end on footwear
(2), described shoestring (1) is implanted with tinsel；
Described feed end (2) includes coaxial fitting (21), microwave-medium substrate (23) and metal ground (24), described microwave-medium base
Plate (23) is located above metal ground (24), and described coaxial fitting (21) runs through microwave-medium substrate (23) and metal ground (24) sets
Put；
Described coaxial fitting (21) includes the probe (22) being connected with shoestring (1).
2. according to claim 1 a kind of for blind person walk anticollision shoestring antenna it is characterised in that described shoestring
(1) inner wire is iron wire, and described iron wire radius is 0.3mm.
3. according to claim 2 a kind of for blind person walk anticollision shoestring antenna it is characterised in that described shoestring
(1) adopt decussation clone in footwear hole, and in being locked by bowknot away from toe cap a line.
4. a kind of shoestring antenna for blind person's walking anticollision according to claim 2 is it is characterised in that described microwave is situated between
Matter substrate (23) material is FR-4, and dielectric constant is 4.3, and described microwave-medium substrate (23) and metal ground (24) are equal to for the length of side
The square of 20mm.
5. according to claim 2 a kind of for blind person walk anticollision shoestring antenna it is characterised in that described probe
(22) length is 4.435mm, a diameter of 1.2mm.
6. a kind of shoestring antenna for blind person's walking anticollision according to claim 2 is it is characterised in that described microwave is situated between
Matter substrate (23) thickness is 1.6mm, and metal ground (24) thickness is 0.035mm.
7. a kind of shoestring antenna for blind person's walking anticollision according to claim 2 is it is characterised in that described coaxially connect
Head (21) a diameter of 4mm.
8. according to claim 3 a kind of for blind person walk anticollision shoestring antenna it is characterised in that described shoestring
(1) it is respectively 32mm, 38mm, 44mm, 50mm, 56mm, described footwear with the first, second, third and fourth of plane-parallel, five elements' length
In the ranks distance is 22mm to band (1), and described bowknot two ends longest distance is 78mm.
9. any one according to claim 3～8 be used for blind person walk anticollision shoestring antenna it is characterised in that described
Feed end (2) be located at bowknot below, rear, top, the friendship near below the cross point of bowknot or near bowknot
At above crunode at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611073712.1A CN106450685B (en) | 2016-11-29 | 2016-11-29 | Shoelace antenna for blind person walking anti-collision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611073712.1A CN106450685B (en) | 2016-11-29 | 2016-11-29 | Shoelace antenna for blind person walking anti-collision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106450685A true CN106450685A (en) | 2017-02-22 |
| CN106450685B CN106450685B (en) | 2023-07-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611073712.1A Active CN106450685B (en) | 2016-11-29 | 2016-11-29 | Shoelace antenna for blind person walking anti-collision |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972240A (en) * | 2017-04-14 | 2017-07-21 | 中国人民解放军国防科学技术大学 | A kind of spectacle-frame antenna for human body central site network |
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| CN106972240A (en) * | 2017-04-14 | 2017-07-21 | 中国人民解放军国防科学技术大学 | A kind of spectacle-frame antenna for human body central site network |
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| Publication number | Publication date |
|---|---|
| CN106450685B (en) | 2023-07-21 |
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