CN206259483U - A kind of shoestring antenna of anticollision of being walked for blind person - Google Patents
A kind of shoestring antenna of anticollision of being walked for blind person Download PDFInfo
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- CN206259483U CN206259483U CN201621291876.7U CN201621291876U CN206259483U CN 206259483 U CN206259483 U CN 206259483U CN 201621291876 U CN201621291876 U CN 201621291876U CN 206259483 U CN206259483 U CN 206259483U
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- shoestring
- antenna
- anticollision
- blind person
- microwave
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Abstract
The utility model provides a kind of shoestring antenna of anticollision of being walked for blind person, including lying in the shoestring on footwear and feed end, the shoestring is implanted with wire, the feed end includes coaxial fitting, microwave-medium substrate and metal ground, the microwave-medium substrate is located at metal ground top, and the coaxial fitting is set through microwave-medium substrate and metal ground；The coaxial fitting includes the probe being connected with shoestring, and shoestring is realized as radiant body, feed by the probe；The utility model is applied to the anticollision detection in blind person's walking process, expection can be used as a kind of more general instrument, it is applied to the multiple fields such as wireless navigation and positioning, spatial electromagnetic collection of energy and charging, human body central site network and digital multimedia, Internet of Things and smart city, smart home, motion and medical science and health data collection and real-time Transmission, has a extensive future.
Description
Technical field
The utility model is related to communication technique field, especially, is related to a kind of shoestring antenna of anticollision of being walked for blind person.
Background technology
In the prior art, common wireless system includes radar, communication, navigation etc., and its antenna is typically metal material, or
The mixed structure of metal and solid dielectric.In wearable field, both at home and abroad in recent years associated antenna realization means mainly include with
Lower several respects：
First, the miniaturized planar antenna containing nano silver wire, specific pattern is arranged as first by template by nano silver wire,
Then layer overlay liquid polymers, after thing solidification to be polymerized, forms the elastomeric material comprising expected pattern, the pattern material energy
The radiation assembly with paster antenna is constituted, by adjusting its shape, operating frequency of antenna is controlled.
2nd, Metal buttonses or metal buckle antenna, size are small, with certain radianting capacity, frequency more long for wavelength
Rate system higher, its electric size is just advantageous.
3rd, the logo antenna of sewing material, has the mark (logo) on paper studies case and bag, clothes as antenna in recent years
Wearable system radiation and reception instrument are carried out, such as the antenna of the LV LV shapes that South Korea delivers for 2015 uses 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 apple
The notched apple form designing antenna of (Apple Inc.) company, makes using fibrous material and realizes, also obtain certain
Radiation and receiving ability.
4th, deformed Oscillators antenna, loop antenna of metal material etc., small-sized, in integrated system, with the hand of current main flow
Machine antenna is similar to, generally smaller than antenna for mobile phone.
5th, microstrip antenna, metal flat fractal antenna etc., using the principles such as bending, self similarity and method, compress micro- as far as possible
Tape base plate thickness, reduces antenna size and weight.
In terms of the informationization of sport footwear, the correlation technique for occurring in recent years and studying includes：
First, the automatic function of 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) companies cooperate with millet company, develop sole embedded chip and small-sized micro electric subsystem
System.
3rd, the company such as Adidas (Adidas) is implanted into chip in sole, monitors the daily motion conditions of user.
In blind person's walking navigation field, the technological means and instrument for occurring in recent years mainly include：
First, the route guidance of satellite navigation system, relies on Google Maps (Google Map), with voice or shock sensor
Mode user is reminded.
2nd, the image recognition navigation based on camera system, installs camera, identification barrier on the walking stick of blind person or on arm
Hinder thing and traffic lights.
3rd, the traveling navigation based on ultrasonic system, with ultrasonic system detecting obstacles thing and reminds user.
The equal Shortcomings of antenna applied in the prior art, concrete condition is as follows：
First, the deficiency of cloth fabric antenna, it is weak mainly due to its electric conductivity, cause 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 small physical size, and electric size is limited, and radiation directivity is weaker, and radiation and reception radio energy not enough collect
In；Microstrip antenna, fractal antenna etc., for user's request, volume is still not small enough, and it is not also particularly convenient to install,
Because it is that peripheral hardware protrudes structure, fixed fixing and volume take inevitable.
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 camera is still
Fully test, the imaging aspect such as discrimination and recognition speed is still needed improvement.
Utility model content
The utility model purpose be provide it is a kind of for blind person walk anticollision shoestring antenna, with solve electric conductivity it is weak,
Cause the technical problems such as radianting capacity is not strong, radiation gain is low, energy loss is larger, physical size is small, electric size is limited.
To achieve the above object, the utility model provides a kind of shoestring antenna of anticollision of being walked for blind person, including is
In the shoestring 1 on footwear and feed end 2, the shoestring 1 is implanted with wire.
The feed end 2 includes coaxial fitting 21, microwave-medium substrate 23 and metal ground 24, the microwave-medium substrate 23
Positioned at the top of metal ground 24, the coaxial fitting 21 is set through microwave-medium substrate 23 and metal ground 24.
The coaxial fitting 21 includes the probe 22 being connected with shoestring 1.
Preferably, the inner wire of the shoestring 1 is iron wire, and the iron wire radius is 0.3mm.
Preferably, the shoestring 1 uses right-angled intersection clone in footwear hole, and is locked by bowknot in away from toe cap a line
Tightly.
Preferably, the material of microwave-medium substrate 23 is FR-4, and dielectric constant is 4.3, the microwave-medium substrate 23
It is the square that the length of side is equal to 20mm with metal ground 24.
Preferably, the length of the probe 22 is 4.435mm, a diameter of 1.2mm.
Preferably, the thickness of microwave-medium substrate 23 is 1.6mm, and 24 thickness of metal ground are 0.035mm.
Preferably, a diameter of 4mm of the coaxial fitting 21.
Preferably, the shoestring 1 and plane-parallel first, second, third and fourth, five-element's length be respectively 32mm, 38mm,
44mm, 50mm, 56mm, in the ranks distance is 22mm to the shoestring 1, and bowknot two ends longest distance is 78mm.
Preferably, the feed end 2 be located at bowknot lower section, rear, top, near bowknot crosspoint below or
Above near the crosspoint of bowknot at least one at.
The utility model has the advantages that：
A kind of shoestring antenna of anticollision of being walked for blind person of the present utility model, including lie in shoestring and feed on footwear
End, the shoestring is implanted with wire, during specific implementation, can also be metallized or with string around metal fine by shoestring
Electric conductivity is realized etc. mode.The feed end includes coaxial fitting, microwave-medium substrate and metal ground, the microwave-medium substrate
Positioned at metal ground top, the coaxial fitting is set through microwave-medium substrate and metal ground；The coaxial fitting includes and footwear
Probe with connection, feed is realized by the probe；Using the shoestring of wire is provided with as radiant body, with certain electricity
Magnetic radiation ability and pattern characteristics, both with without effect separately installed, easy to carry, can realize electromagnetic energy in sky again
In distribution (as transmitting antenna use) or possess from the function of aerial certain areas captured electromagnetic signal and energy (as receiving day
Line use), it is practical.
A kind of shoestring antenna for blind person's walking anticollision of the present utility model is easy for installation, and electrical length is variable, structure jail
Lean on, price is low, lightweight, small volume, mitigate user and use burden, be applied to the anticollision detection in blind person's walking process；It is expected
Wireless navigation can be applied to positioning, spatial electromagnetic collection of energy and charging, human body as a kind of more general instrument
Central site network and digital multimedia, Internet of Things and smart city, smart home, motion and medical science and health data collection with it is real-time
The multiple fields such as transmission, have a extensive future.
Feed end described in the utility model also includes micro-strip medium substrate, and the coaxial fitting extends vertically through the micro-strip
Medium substrate is set.The micro-strip medium substrate is used to carry out auxiliary feed；In practical application, the micro-strip medium substrate can subtract
Small size or up-sizing cancel this part, and micro-strip medium substrate mainly influences the ratio between front and rear radianting capacity of antenna and most
The concrete numerical value of large gain, but the serious reduction of technical parameters and performance will not be caused.
Feed end described in the utility model be located at bowknot lower section, rear, top, near under the crosspoint of bowknot
Side or near at least above the crosspoint of bowknot, position difference mainly influences impedance matching performance and working frequency
Height, different demands can be met.
Shoestring antenna can be realized covering the front upper place space around shoes in the utility model, and shoestring is in pine
Relax, medium, tie-down state has slight influence to Antenna Impedance Matching characteristic, the concrete numerical value of main influence reflectance factor,
Without causing working frequency to be drifted about, the radiation directivity of antenna is related to shoelace tightness degree.
In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing being further understood to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is the shoestring antenna partial structural diagram of the anticollision of being walked for blind person of the utility model preferred embodiment；
Fig. 2 is that the shoestring antenna for blind person's walking anticollision of the utility model preferred embodiment feeds end-view；
Fig. 3 is the shoestring antenna feed end top view of the anticollision of being walked for blind person of the utility model preferred embodiment；
Fig. 4 is that the feed end of the utility model preferred embodiment is located at the lower section of bowknot, rear and near bowknot
Crosspoint lower position reflection coefficient chart；
Fig. 5 is vertical polarization radiation of the shoestring of the utility model preferred embodiment under lax, medium, tie-down state
Directional diagram；
Fig. 6 is horizontal polarization radiation of the shoestring of the utility model preferred embodiment under lax, medium, tie-down state
Directional diagram；
Fig. 7 is that the shoestring of the utility model preferred embodiment is cut in greatest irradiation direction under lax, medium, tie-down state
The directional diagram in face；
Fig. 8 is the reflectance factor contrast of the actual measurement of shoestring antenna and the emulation of the utility model preferred embodiment；
Fig. 9 is that the simulation result and measured data of the shoestring radiation pattern of the utility model preferred embodiment (hang down
Straight polarization, 2.43GHz).
In figure：1st, shoestring, 2, feed end, 21, coaxial fitting, 22, probe, 23, microwave-medium substrate, 24, metal ground.
Specific embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be according to power
Profit requires to limit and the multitude of different ways of covering is implemented.
Embodiment 1
The present embodiment is from the serial running shoes of Nike Air Huarache Run 819685, sole outline length
31.5cm, it is the footwear hole of 9mm that footwear body is respectively provided on two sides with two rows for fastening shoestring and homonymy horizontal range.
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of shoestring antenna of anticollision of being walked for blind person, including lie in shoestring 1 on footwear with
Feed end 2, the shoestring 1 is implanted with wire.The feed end 2 includes coaxial fitting 21, microwave-medium substrate 23 and metal
Ground 24, the microwave-medium substrate 23 is located at the top of metal ground 24, and the coaxial fitting 21 runs through microwave-medium substrate 23 and gold
Possession 24 is set；The coaxial fitting 21 includes the probe 22 being connected with shoestring 1, and feed is realized by the probe 22.
The inner wire of the shoestring 1 is iron wire, and the iron wire radius is 0.1~3mm；The shoestring 1 uses right-angled intersection
Clone is locked in away from toe cap a line in footwear hole by bowknot.
The material of microwave-medium substrate 23 is FR-4 (epoxy glass fiber plate), and dielectric constant is 4.3, and the microwave is situated between
Matter substrate 23 and metal ground 24 are the square that the length of side is equal to 20mm.The length of the probe 22 is 4.435mm, a diameter of 1.2mm；
The thickness of microwave-medium substrate 23 is 1.6mm, and 24 thickness of metal ground are 0.035mm.The a diameter of 4mm of the coaxial fitting 21.
The shoestring 1 and plane-parallel first, second, third and fourth, five-element's length be respectively 32mm, 38mm, 44mm,
50mm, 56mm, in the ranks distance is 22mm to the shoestring 1, and bowknot two ends longest distance is 78mm.The feed end 2
In bowknot lower section, rear, top, near the crosspoint lower section of bowknot or near above the crosspoint of bowknot extremely
At few one.
Shoestring is implanted into wire (wire radius is 0.1~3mm) or shoestring metallization can be obtained into effective day
Line impedence matching and radiance；In order to realize that preferably radiation is pointed to, i.e., beam main lobe points to the front upper place of direction of travel,
The crosspoint of the shoestring that metallizes should be insulated, but insulation processing need not be carried out at bowknot.
Walked for blind person for the present embodiment the shoestring antenna of anticollision, microwave dark room carry out antenna reflection coefficient,
Antenna pattern etc. is tested, and using An Li Anritsu companies 37369A vector network analyzers, coordinates ultra wide band ridged horn day
Line (1-12GHz) and horizontal single axle table, complete voltage standing wave ratio, the test of the technical indicator such as directional diagram, obtain respectively level and
Vertical polarization directions data.Used 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 the reflection of lower section, rear and the crosspoint lower position near bowknot that feed end is located at bowknot
Charts for finned heat；Fig. 5 is the vertical polarization antenna pattern that shoestring is under lax, medium, tie-down state；Fig. 6 is at shoestring
Horizontal polarization antenna pattern under lax, medium, tie-down state；Fig. 7 is that shoestring is under lax, medium, tie-down state
Along respective greatest irradiation direction tangent plane, its polar coordinates antenna pattern (it is lax, medium and fasten state correspond to respectively 122 degree,
155 degree and 176 degree)；Fig. 8 is that shoestring antenna is surveyed and the reflectance factor of emulation is contrasted；Fig. 9 is shoestring radiation pattern
Simulation result and measured data (vertical polarization, 2.43GHz).
Be 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 coincide fine, and two-dimentional polar coordinates directional diagram is only illustrated herein) measured data coincide with simulation result
Preferably, the validity of slide fastener antenna is demonstrated.
In terms of impedance matching property, reflectance factor is usually required that no more than -10dB, when feed end is located near bowknot
Crosspoint lower position when resonance point it is unique, in 2.45GHz, industry, scientific research, medical field can be used freely
ISM (Industrial Scientific Medical) frequency range；When distributing point is located at bowknot rear, there are multiple resonance points
With work band.
There are two round holes such shoes footwear body left and right sides, it is contemplated that user's actual conditions, when outside Shoestring tying shoes
During side cavities (the every a line length with plane-parallel is more long), 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 (the every a line length with plane-parallel is shorter),
In tightening state；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 have large change；Table 1 is given 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 the shoestring different conditions of table 1
| Shoestring state | Main lobe width (°) | Gain (dBi) |
| It is lax | 122 | 10.96 |
| It is medium | 155 | 9.71 |
| Fasten | 176 | 8.59 |
Lax, medium and tie-down state corresponds to 122 degree, 155 degree and 176 degree respectively, and table 2 gives greatest irradiation direction and cuts
The beam angle and gain data in face.
3 decibels of width in antenna greatest irradiation direction and gain under the shoestring different conditions of table 2
| Shoestring state | 3 decibels of width (°) | Gain (dBi) |
| It is lax | 25.5 | 9.07 |
| It is medium | 39.0 | 6.52 |
| Fasten | 36.1 | 9.50 |
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (9)
1. it is a kind of for blind person walk anticollision shoestring antenna, it is characterised in that including lying in the shoestring on footwear (1) and feed end
(2), the shoestring (1) is implanted with wire；
The feed end (2) includes coaxial fitting (21), microwave-medium substrate (23) and metal ground (24), the microwave-medium base
Plate (23) positioned at metal ground (24) top, the coaxial fitting (21) through microwave-medium substrate (23) and metal (24) set
Put；
The coaxial fitting (21) includes the probe (22) that is connected with shoestring (1).
2. it is according to claim 1 it is a kind of for blind person walk anticollision shoestring antenna, it is characterised in that the shoestring
(1) inner wire is iron wire, and the iron wire radius is 0.3mm.
3. it is according to claim 2 it is a kind of for blind person walk anticollision shoestring antenna, it is characterised in that the shoestring
(1) using right-angled intersection clone in footwear hole, and locked by bowknot in away from toe cap a line.
4. the shoestring antenna of a kind of anticollision of being walked for blind person according to claim 2, it is characterised in that the microwave is situated between
Matter substrate (23) material is FR-4, and dielectric constant is 4.3, the microwave-medium substrate (23) and metal (24) be equal to for the length of side
The square of 20mm.
5. it is according to claim 2 it is a kind of for blind person walk anticollision shoestring antenna, it is characterised in that the probe
(22) length is 4.435mm, a diameter of 1.2mm.
6. the shoestring antenna of a kind of anticollision of being walked for blind person according to claim 2, it is characterised in that the microwave is situated between
Matter substrate (23) thickness is 1.6mm, and metal ground (24) thickness is 0.035mm.
7. it is according to claim 2 it is a kind of for blind person walk anticollision shoestring antenna, it is characterised in that it is described coaxially to connect
Head (21) a diameter of 4mm.
8. it is according to claim 3 it is a kind of for blind person walk anticollision shoestring antenna, it is characterised in that the shoestring
(1) 32mm, 38mm, 44mm, 50mm, 56mm, the footwear are respectively with the first, second, third and fourth of plane-parallel, five-element's length
In the ranks distance is 22mm to band (1), and bowknot two ends longest distance is 78mm.
9. the shoestring antenna of a kind of anticollision of being walked for blind person according to claim 3~8 any one, its feature exists
In, the feed end (2) positioned at bowknot lower section, rear, top, near the crosspoint lower section of bowknot or near butterfly
Above the crosspoint of knot at least one at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291876.7U CN206259483U (en) | 2016-11-29 | 2016-11-29 | A kind of shoestring antenna of anticollision of being walked for blind person |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291876.7U CN206259483U (en) | 2016-11-29 | 2016-11-29 | A kind of shoestring antenna of anticollision of being walked for blind person |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206259483U true CN206259483U (en) | 2017-06-16 |
Family
ID=59026380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621291876.7U Expired - Fee Related CN206259483U (en) | 2016-11-29 | 2016-11-29 | A kind of shoestring antenna of anticollision of being walked for blind person |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206259483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450685A (en) * | 2016-11-29 | 2017-02-22 | 中国人民解放军国防科学技术大学 | Shoelace antenna for blind walking anti-collision |
-
2016
- 2016-11-29 CN CN201621291876.7U patent/CN206259483U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450685A (en) * | 2016-11-29 | 2017-02-22 | 中国人民解放军国防科学技术大学 | Shoelace antenna for blind walking anti-collision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20181129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |