CN108342941A - Sidewalk for visually impaired people automatic identification and positioning system - Google Patents
Sidewalk for visually impaired people automatic identification and positioning system Download PDFInfo
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- CN108342941A CN108342941A CN201810294610.5A CN201810294610A CN108342941A CN 108342941 A CN108342941 A CN 108342941A CN 201810294610 A CN201810294610 A CN 201810294610A CN 108342941 A CN108342941 A CN 108342941A
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- 230000001771 impaired effect Effects 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 12
- 238000007711 solidification Methods 0.000 claims abstract description 8
- 230000008023 solidification Effects 0.000 claims abstract description 8
- 239000011449 brick Substances 0.000 claims abstract description 5
- 229920000965 Duroplast Polymers 0.000 claims description 6
- 239000011121 hardwood Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002372 labelling Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 241001166076 Diapheromera femorata Species 0.000 description 1
- 241000283220 Odobenus rosmarus Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
-
- 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
- A61H3/02—Crutches
-
- 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
- A61H3/066—Installations on the floor, e.g. special surfaces, to guide blind persons
-
- 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
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5007—Control means thereof computer controlled
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- Health & Medical Sciences (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Road Signs Or Road Markings (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention relates to blindman product technical field more particularly to a kind of sidewalk for visually impaired people automatic identifications and positioning system.The system includes crutch, UHF labels, programmable device, earphone and connecting line.At a certain distance, UHF labels are layed in sidewalk for visually impaired people together with blind way brick, UHF labels are passive, and the programmable chip in UHF labels is by programmable device identification sidewalk for visually impaired people and the program of location information for having attribute, tag number and specific information based on the establishment of Morse digital coding method and solidification.RFID reader is carried on blind-man crutch, when it enters the labeling task areas UHF, cured correlative coding information can be received by RFID reader, after demodulation in UHF labels, the earphone that blind person wears hears that the sound of its Morse code, blind person can be according to digital Morse code table and information partition table identification sidewalk for visually impaired people relevant information and the positions of oneself.These information are sent to terminal device simultaneously, and blind person's trend and security situation are being grasped at a distance for guardian.So that sidewalk for visually impaired people function is significantly improved, ensures the safety of blind person.
Description
Technical field
The present invention relates to blindman product technical field more particularly to a kind of blind person, to sidewalk for visually impaired people, (attribute, position are special
Information) automatic identification and positioning system.
Background technology
Continuous improvement with the continuous development and people of China's economic technology to good life demand, to blindman item
The improvement of part is also continuously available attention, shows the attention that sidewalk for visually impaired people is built in each city and place.But in existing sidewalk for visually impaired people use also
There are problems, and utilization rate is not high, and blind person's trip still feels difficult, is unable to fully share the fruit of development, therefore changing of using of sidewalk for visually impaired people
It is kind imperative.The Chinese invention patent of publication number CN13992330 discloses a kind of " electronically-guided blinds road and intelligent blind road
Mark system " proposes the method for replacing existing sidewalk for visually impaired people using adhesive type intelligence sidewalk for visually impaired people and induction type walking stick and electronic route sign.It does so,
It needs to abandon the sidewalk for visually impaired people that existing great Liang Shop are set, it was reported that it is long that existing Pekinese's sidewalk for visually impaired people laying amount quite can be taped against Hunan from Beijing
Sand, the waste abandoned is too big, moreover, with the sidewalk for visually impaired people durability of stickup/coating also not as good as existing sidewalk for visually impaired people.In addition, the induction emphasized
Formula communication is only applicable to closely, and being used for can be problematic to sidewalk for visually impaired people and road sign communication reliability, and peripheral road sign is also difficult to manage；
It is not only more complex using speech coding system, and poor universality.Patent of invention " blind person's specific boot system of CN106074099A
System ", it is desirable that blind person's outfit is special to turn battle, glasses and exterior arrangement Cloud Server etc..Turning needs configuration obliquity sensor, radar in battle
Ranging, supersonic sounding and bluetooth etc., will be with fixed ring, three cameras, control box and bluetooth etc. on glasses.So largely match
It sets, in the environment of outdoor variation, is managed by blind person, is also probably difficult to realize.
Invention content
To solve the above problems, the present invention proposes that one kind increasing sidewalk for visually impaired people automatic identification and positioning system on the basis of existing sidewalk for visually impaired people
Whether the method for system makes blind person more clearly understand on sidewalk for visually impaired people and the attribute of place sidewalk for visually impaired people (Route for pedestrians name, hospital, bank
Deng), position (label serial number), specific information (pavement reaches hospital, bank etc. or turn, the prompt of terminal etc.) also can
Guardian is set to understand relevant information and the position of blind person at any time.And to ensure it is simple, it is reliably, general and keep sidewalk for visually impaired people using effect bright
It is aobvious to improve, the more preferable safety for ensureing blind person.
To achieve the above object, technical scheme is as follows：
A kind of sidewalk for visually impaired people automatic identification and positioning system, including crutch, UHF (superfrequency) label, programmable device, earphone and connection
Line.
The crutch includes crutch main body and crutch handgrip, and main body middle and upper part is provided with a platform, is placed eventually above platform
End equipment is fixed with RFID (radio frequency identification) reader under platform.Crutch handgrip is left and right terminal device and reader electricity respectively
Source switch.The line for switching respective equipment passes through the perforation of crutch main center.RFID reader is operated in uhf band, can
With UHF label communications, therefore reader antenna and label antenna answer same direction.Terminal device and reader are when entering sidewalk for visually impaired people
It can turn on the switch, start to work, reader sends uhf band continuous wave signal.When work, platform is perpendicular to crutch main body direction
Front is rotated up, and can centainly be moved up and down；When not used, terminal device can be shed and is recovered to crutch master upwards
Body, to collect.The battle media such as main body duroplasts or hardwood are turned to manufacture.The reader has two demodulation delivery outlets that can connect respectively
Lug machine and terminal device input port is connected to by connecting line.
The UHF labels are by UHF label shells, label antenna, power rectifier, programmable chip, label programming port and anti-
To scattering circuit composition.The power rectifier refers to the part signal that UHF labels receive RFID reader, rectified to make label
Required power supply, whens UHF labeling tasks, are not required to power source special, can also claim " passive label ".Label shell is manufactured by duroplasts, and close
Envelope.Programmable chip is connect by label programming port with programmable device programming port.Before label is laid with, programmable chip in label by
Programmable device has attribute (Route for pedestrians name, hospital, bank etc.), label to compile with based on the establishment of Morse digital coding method and solidification
The identification sidewalk for visually impaired people of number (label serial number) and specific information (pavement reaches hospital, bank etc. or turns round, the prompt of terminal etc.)
And the program of location information.
The programmable device has the programming being connect with computer when the programmable device programming port being connect with label programming port and programming
Device computer interface.Before UHF labels are laid with, for being programmed to label；It after programming and solidification, does not use, is one with being arranged
It is standby.
The UHF labels are sequentially layed in together with blind way brick on sidewalk for visually impaired people at a certain distance, are connect when blind person holds crutch
Certain nearly UHF label may be programmed when UHF labels reception RFID reader part signal can make UHF labeling tasks through power rectifier
Chip can send out its encoded signal, modulate another part RFID reader signal by backscatter circuit, and return it to
RFID reader can demodulate original encoding signal after RFID reader receives, then send blind person institute band earphone, can hear and accordingly rub
The long and short electric signal of Er Si codings, blind person may know that sidewalk for visually impaired people attribute, position according to Morse code table and information partition table
Tag number and specific information reach the automatic identification to sidewalk for visually impaired people and positioning.When being laid with because of UHF labels, tag number is to arrange in order
Row, it is known that tag number and arrangement spacing, so that it may know blind person sidewalk for visually impaired people position.
It is described to UHF label codings and to be laid in based on Morse digital coding method：Former Morse code is used as telegram
The coding method of various numbers and English alphabet is received and dispatched, transceiving is one of its common listening mode, only uses it here
0-9 numerical characters encode, as follows to UHF label codings and the flow of laying：First, digital Morse code table need to be applied (to be shown in Table
1), it can be seen that bits per inch word is by 5 differences, draws combination and point, the coding for drawing the intermediate symbolic indication for 1 interval, point
(), it draws (-) and is spaced (sky) as three basic units, respectively account for 1,3,1 chronomere；It also needs to apply sidewalk for visually impaired people information partition table
Sidewalk for visually impaired people information is divided into three subregion of attribute, tag number and specific information to make identification, this table comprehensively to sidewalk for visually impaired people, advised by (being shown in Table 2)
The respective information content and the digital code digit of suggestion are determined；Each department are considering specific sidewalk for visually impaired people and blind person are facilitated to identify principle
Under, also need establishment attribute and specific information code table with reference to partition table and the digital code digit of suggestion；Tag number is from blind
The serial number of 000 serial number that road starts to maximum (sidewalk for visually impaired people length/tagging arrangements spacing) makees code；Specific information code table is also
By markup information position tag number after serial number arrangement and every serial number since sidewalk for visually impaired people.Stated number interdigit 3 is spaced again, by stages
6 intervals.It can sequentially be encoded, programmed and cured to label.Each label programming has cured, by the information of each subregion
Code inserts label label.It all programs, cured, you can into the laying of row label.When encoded signal is modulated in audio,
Earphone can hear short, the long different sound of corresponding chronomere, be divided into noiseless.When work, program reruns, coding
Sound will repeat to hear (intervals repetition interval ＞ 10), for identification.
The digital Morse code table of table 1
2 sidewalk for visually impaired people information partition table of table
It is differentiated for convenience of information and label is laid with, label can be divided into two classes：A kind of attribute+tag number code name
(claiming sequence tags)；Another kind of specific information code name (claiming special tags).It, first can be by tagging arrangements spacing and sequence when laying
Number be laid with sequence tags；Again special tags are laid in specific information corresponding position；Sequence tags set sidewalk for visually impaired people the same side, special tags
Then set specific information side.
The terminal device can be mobile phone or HF shortwave platforms, in use, blind person guardian can be made in remote uppick
Same encoded signal understands blind person's information and safety.
Beneficial effects of the present invention
1. the present invention takes full advantage of the sidewalk for visually impaired people being largely laid at present and existing RFID technique, the technology is enable to have effect
It is identified for sidewalk for visually impaired people.So that blind person's trip not only more oneself is located at sidewalk for visually impaired people certainly, but also understand the information of various needs, expands blind
The activity space and self-confidence of people.
2. sequence of the label along sidewalk for visually impaired people is laid with, blind person can be made to know for sure oneself position on sidewalk for visually impaired people.Switch controls
When need to understand for information about.
3. applying based on Morse digital coding method, and information is divided into three subregions, is indicated respectively with digital code,
Better versatility and flexibility are grasped and had convenient for blind person.
4. coding information can pass guardian back by terminal device, guardian can understand blind person's trend and safe feelings at any time
Condition.
Description of the drawings
Fig. 1 is the system architecture diagram of the present invention；
Fig. 2 is the structural schematic diagram of crutch；
Fig. 3 is UHF label construction schematic diagrames；
Fig. 4 is programmable device interface diagram；
Fig. 5 is that UHF labels are laid with schematic diagram in sidewalk for visually impaired people
Fig. 6 is the programming of UHF labels, is laid with flow chart
In figure, 1, crutch, 2, UHF labels, 3, programmable device, 4, earphone, 5, connecting line, 101, terminal device switch, 102,
RFID readers switch, and 103, crutch handgrip, 104, crutch main body, 105, terminal device, 106, platform, 107, RFID reads
Device, 108, reader demodulate 1 delivery outlet, 109, reader demodulate 2 delivery outlets, 110 reader antennas, 111, terminal device input
Mouthful, 201, UHF label shells, 202, power rectifier, 203, programmable chip, 204, label programming port, 205, backscattering electricity
Road, 206, label antenna, 207, programmable device programming port, 208, programmable device computer interface, 209, sidewalk for visually impaired people
Specific implementation method
Technical scheme of the present invention is further explained with reference to the accompanying drawings and examples.The preferred embodiments of the present invention are not
It is construed as limiting the invention.
A kind of sidewalk for visually impaired people automatic identification and positioning system, as shown in Figure 1, including crutch 1, UHF labels 2, programmable device 3, earphone 4
And connecting line 5.UHF labels 2 are layed in sidewalk for visually impaired people 209 by (current 5 meters) together with blind way brick at a certain distance, and UHF labels 2 are
Passive, the programmable chip 203 in UHF labels 2 is by programmable device 3 with based on Morse digital coding method coding and solidification
Have attribute (Route for pedestrians name, hospital, bank etc.), tag number (label serial number) and specific information (pavement reaches hospital,
Bank etc. or turn round, the prompt of terminal etc.) identification sidewalk for visually impaired people and location information program.It is read with RFID on blind-man crutch 1
Device 107, when it enters 2 workpiece area of UHF labels, cured correlative coding information can be by RFID reader 107 in UHF labels 2
It receives, after demodulation, the earphone 4 worn by blind person clearly hears that the sound of its mole of code, blind person can be according to digital Morses
Code table and information partition table identification sidewalk for visually impaired people relevant information and position.These information are can transmit simultaneously to terminal device 105, are supplied
Guardian is grasping blind person's trend and security situation at a distance.
As shown in Fig. 2, the crutch 1 includes crutch main body 104 and crutch handgrip 103,104 middle and upper part of main body is provided with one
Platform 106, platform top are placed with terminal device 105, and lower section is fixed with RFID reader 107.103 left and right side of crutch handgrip
There is Terminal Equipment Power switch 101 respectively and read appliance mains switch 102, the line of switch to respective equipment passes through crutch main body
The perforation at center.RFID reader 107 is also operated in uhf band, can be communicated with UHF labels 2, therefore reader antenna 110 and mark
Label antenna 206 answers same direction.Terminal device 105 and reader 107 can be turned on the switch when entering sidewalk for visually impaired people, be started to work,
Reader 107 sends uhf band continuous wave signal.When work, platform 106 perpendicular to crutch main body 104 towards front or upwards
It rotates, and can centainly move up and down；When not used, terminal device 105 can be shed and is recovered to crutch main body upwards, so as to
Collection.The media manufactures such as crutch main body 104 application duroplasts or hardwood.RFID reader 107 has demodulation 1 delivery outlet 108 reconciliation
2 delivery outlets 109 are adjusted, respectively lug machine 4 and terminal device input port 111.
As shown in figure 3, the UHF labels 2 are by label shell 201, label antenna 206, power rectifier 202, programmable core
Piece 203, label programming port 204 and backscatter circuit 205 form.The power rectifier 202 refers to the reception of UHF labels 2
The part signal that RFID reader 107 emits, rectified to make power supply needed for UHF labels 2, UHF labels 2 are not required to Special electric when working
Source can also claim " passive label ".UHF labels shell 201 is manufactured by duroplasts, and is sealed.Programmable chip 203 passes through label
Programming port 204 is connect with programmable device programming port 207.Before UHF labels 2 are laid with, the programmable chip 203 in UHF labels 2 is by compiling
Journey device 3 has attribute (Route for pedestrians name, hospital, bank etc.), label to compile with based on the establishment of Morse digital coding method and solidification
The identification sidewalk for visually impaired people of number (label serial number) and specific information (pavement reaches hospital, bank etc. or turns round, the prompt of terminal etc.)
And the program of location information.
As shown in figure 4, there is the computer being connect with computer when programmable device programming port 207 and programming on the programmable device 3
Interface 208.Before UHF labels 2 are laid with, for being programmed to label；After programming and solidification, does not use, be a corollary equipment.
As shown in figure 5, the UHF labels 2 are sequentially layed on sidewalk for visually impaired people 209 every 5 meters together with blind way brick, work as blind person
Crutch 1 is held close to certain label 2, label 2 receives 107 part signal of RFID reader can make label 2 work through power rectifier 202
When, label programmable chip 203 can send out its encoded signal can demodulate original encoding signal after reader 107 receives, then
Blind person institute band earphone 4 is sent, can hear the long and short electric signal of corresponding Morse coding, blind person is according to Morse code table and information
Partition table may know that sidewalk for visually impaired people attribute, position tag number and specific information, reach the automatic identification to sidewalk for visually impaired people and positioning.Because of mark
It is to arrange in order that label 2, which are laid with, it is known that tag number and 5 meters of spacing of arrangement, so that it may know oneself position in sidewalk for visually impaired people.For example, blind
When people leaves home to enter sidewalk for visually impaired people, tag number 40, it is 140 to walk after stretch, if when being laid with, number increases eastwards from west, then
It understands to have left home 500 meters eastwards.
As shown in fig. 6, the coding of UHF labels 2 and laying flow based on Morse digital coding method.Former Morse
Code is used as the coding method that telegram receives and dispatches various numbers and English alphabet, and transceiving is one of its common listening mode,
Here its 0-9 numerical character coding is only used.The flow for encoding and being laid with to UHF labels 2 is as follows：First, it need to rub using number
Your this code table (being shown in Table 1), it can be seen that bits per inch word is by 5 differences, draws combination and point, draws the intermediate symbol table for 1 interval
The coding shown, point () draw (-) and are spaced (sky) as three basic units, respectively account for 1,3,1 chronomere；It also needs to apply sidewalk for visually impaired people
Information partition table (is shown in Table 2), and sidewalk for visually impaired people information is divided into attribute, tag number and special letter to make identification, this table comprehensively to sidewalk for visually impaired people
Three subregions are ceased, it is specified that the digital code digit of the respective information content and suggestion；Each department are in the specific sidewalk for visually impaired people of consideration and conveniently
Blind person identifies under principle, and establishment attribute and specific information code table are also needed with reference to partition table and the digital code digit of suggestion；Mark
Label number is that the serial number of 000 serial number to maximum (the sidewalk for visually impaired people length/tagging arrangements spacing) since sidewalk for visually impaired people makees code number；Specially
With message code table also since sidewalk for visually impaired people by markup information position tag number after serial number arrangement and every serial number.Numerical digit is provided again
Between 3 interval, by stages 6 be spaced.It can sequentially be encoded, programmed and be cured to UHF labels 2.Every UHF labels 2 are compiled
Journey has cured, and the message code of each subregion is inserted label label.It all programs, cured, you can into the laying of row label 2.
When encoded signal is modulated in audio, earphone 3 can hear short, the long different sound of corresponding chronomere, be divided into nothing
Sound.When work, program reruns, and coding sound will repeat to hear (intervals repetition interval ＞ 10), for identification.
As shown in fig. 6, being laid with for convenience of information resolution and label 2, label 2 can be divided to for two classes：A kind of attribute+mark
Sign number code name (claiming sequence tags)；Another kind of specific information code name (claiming special tags).It, first can be by UHF labels 2 when laying
It arranges spacing and serial number is laid with sequence tags；Again special tags are laid in specific information corresponding position.
Such as：When establishment attribute codes be 01 (such as：Known for Zhongshan Road by code table), the sequence mark that label serial number is 112
When label, coded identification will be：It draws empty stroke empty stroke empty sky of drawing and draws (0), absolutely empty empty (bit interval), empty stroke empty stroke empty sky of drawing of point draws (1),
Absolutely empty absolutely empty (project interval), point sky are drawn sky and are drawn empty stroke empty stroke (1), and absolutely empty sky (bit interval), point sky draws sky and draws empty stroke of sky
It draws (1), absolutely empty sky (bit interval), puts null point sky and draw empty draw empty stroke (2).
The coding method is familiar with from slow to fast, can grasp quickly.
Terminal device 3 can be mobile phone or HF shortwave platforms, in use, blind person guardian can be made same in remote uppick
Encoded signal understands blind person's information and safety.
Claims (8)
1. a kind of sidewalk for visually impaired people automatic identification and positioning system, it is characterised in that：Including crutch (1), UHF labels (2), programmable device (3),
Earphone (4) and connecting line (5).
2. crutch (1) according to claim 1, which is characterized in that main including crutch main body (104) and crutch handgrip (103)
Body (104) middle and upper part is provided with a platform (106), and terminal device (105) is placed with above platform, and lower section is fixed with RFID readings
Device (107).Crutch handgrip (103) left and right side has Terminal Equipment Power switch (101) and reads appliance mains switch (102) respectively,
The line for switching respective equipment passes through the perforation of crutch main center.RFID reader (107) is also operated in uhf band, can
It is communicated with UHF labels (2), therefore reader antenna (110) answers same direction with label antenna (206).Terminal device (105) and
RFID reader (107) can be turned on the switch when entering sidewalk for visually impaired people, be started to work, and RFID reader (107) sends uhf band and connects
Continuous wave signal.When work, platform (106) towards front or is rotated up perpendicular to crutch main body (104), and can be made certain
It moves up and down；When not used, terminal device (105) can be shed and be recovered to crutch main body upwards, to collect.Crutch main body
(104) manufacture of the media such as duroplasts or hardwood is applied.The RFID reader (107) has 1 delivery outlet of demodulation (108) and demodulation 2
Delivery outlet (109) distinguishes lug machine (4) and connects terminal device input port (111) via connecting line (5).
3. UHF labels (2) according to claim 1, by UHF labels shell (201), label antenna (206), power rectifier
(202), programmable chip (203), label programming port (204) and backscatter circuit (205) composition.So-called power rectifier
(202) refer to UHF labels (2) part signal for receiving RFID reader (107) transmitting, it is rectified to make power supply needed for label,
UHF labels (2) are not required to power source special when working, and can also claim " passive label ".Label shell (201) is manufactured by duroplasts, and close
Envelope.Programmable chip (203) is connect by label programming port (204) with programmable device programming port (207).It is characterized in that, UHF is marked
Sign before (2) be laid with, programmable chip (203) in label by programmable device (3) with based on the establishment of Morse digital coding method and
Solidification has attribute (Route for pedestrians name, hospital, bank etc.), tag number (label serial number) and specific information, and (pavement reaches
Hospital, bank etc. or turn round, the prompt of terminal etc.) identification sidewalk for visually impaired people and location information program.
4. according to claim 1 and 3 programmable devices (3), which is characterized in that include to be connect with label programming port (204)
Programmable device programming port (207) and the programmable device computer interface (208) being connect with computer.Before UHF labels (2) are laid with, it is used for
It is programmed to label；After programming and solidification, does not use, be a corollary equipment.
5. according to claim 1 and the 3 UHF labels (2), which is characterized in that UHF labels (2) are at a certain distance sequentially
It is layed on sidewalk for visually impaired people with together with blind way brick.When blind person holds crutch (1) close to certain UHF label (2), label receives RFID reader
(107) through power rectifier (202) to when can make UHF labels (2) work, programmable chip (203) can be sent out part signal
Its encoded signal modulates another part RFID reader (2) signal by backscatter circuit (205), and returns it to RFID
Reader (2) can demodulate original encoding signal after RFID reader (2) receives, and be re-fed into blind person's institute's band earphone (4), can hear
The long and short electric signal of Morse coding, blind person mark according to sidewalk for visually impaired people coding schedule and information partition table sidewalk for visually impaired people attribute, position
Sign and specific information reach the automatic identification to sidewalk for visually impaired people and positioning.When being laid with because of UHF labels (2), tag number is to arrange in order
Row, it is known that tag number and arrangement spacing, so that it may know blind person sidewalk for visually impaired people position.
6. being based on coding and laying of the Morse digital coding method to UHF labels (2), spy according to claim 3 and 5 are described
Sign is that former Morse code is used as the coding method that telegram receives and dispatches various numbers and English alphabet, and transceiving is that it is normal
With one of listening mode, its 0-9 numerical character coding is only used here.The flow for encoding and being laid with to UHF labels (2) is as follows：
First, digital Morse code table (being shown in Table 1) need to be applied, it can be seen that bits per inch word is by 5 differences, draws combination and point, draws
Between for 1 interval symbolic indication coding, point () draws (-) and interval (sky) as three basic units, respectively accounts for 1,3,1 time
Unit；Also need apply sidewalk for visually impaired people information partition table (being shown in Table 2), for sidewalk for visually impaired people make comprehensively identification, this table by sidewalk for visually impaired people information be divided into attribute,
Tag number and three subregion of specific information are, it is specified that the digital code digit of the respective information content and suggestion；It is examining each department
Consider specific sidewalk for visually impaired people and blind person is facilitated to identify under principle, establishment attribute and specially is also needed with reference to partition table and the digital code digit of suggestion
With message code table；Tag number is 000 serial number since sidewalk for visually impaired people to the suitable of maximum (sidewalk for visually impaired people length/tagging arrangements spacing)
Serial number makees code number；Specific information code table is also marked since sidewalk for visually impaired people by markup information position after serial number arrangement and every serial number
Sign.Stated number interdigit 3 is spaced again, and by stages 6 is spaced.It can sequentially be encoded, programmed and be cured to UHF labels (2).
Every UHF labels (2) programming has cured, and the message code of each subregion is inserted label label.All programs, has cured, you can
Carry out the laying of UHF labels (2).When encoded signal is modulated in audio, earphone (3) can hear corresponding chronomere it is short,
Long different sound is divided into noiseless.When work, program reruns, and coding sound will repeat to hear (repetition interval ＞
10 intervals), for identification.
7. the coding of UHF labels (2) and laying according to claim 6, which is characterized in that for convenience of information resolution and UHF
Label (2) is laid with, and can UHF labels (2) be divided into two classes：A kind of attribute+tag number code (claims sequence tags)；It is another
Class specific information code (claiming special tags).When laying, spacing and serial number laying sequence can be first arranged by UHF labels (2)
Label；Again special tags are laid in specific information corresponding position；Sequence tags set sidewalk for visually impaired people the same side, and special tags then set special letter
Side where breath.
8. terminal device (107) according to claim 2, which is characterized in that mobile phone or HF shortwave platforms can be used, in use,
Blind person guardian can be made in the same encoded signal of remote uppick, understand blind person's information and safety.
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