CN107293111A - A kind of intelligent sidewalk for visually impaired people acoustic control system for prompting and method - Google Patents
A kind of intelligent sidewalk for visually impaired people acoustic control system for prompting and method Download PDFInfo
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- CN107293111A CN107293111A CN201710620503.2A CN201710620503A CN107293111A CN 107293111 A CN107293111 A CN 107293111A CN 201710620503 A CN201710620503 A CN 201710620503A CN 107293111 A CN107293111 A CN 107293111A
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- sidewalk
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- 230000001771 impaired effect Effects 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001939 inductive effect Effects 0.000 claims abstract description 59
- 238000004146 energy storage Methods 0.000 claims abstract description 58
- 238000009434 installation Methods 0.000 claims abstract description 50
- 230000006698 induction Effects 0.000 claims abstract description 49
- 230000000284 resting effect Effects 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 11
- 230000033228 biological regulation Effects 0.000 description 7
- 210000001367 artery Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002320 enamel (paints) Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 230000001960 triggered effect Effects 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The present invention relates to a kind of intelligent sidewalk for visually impaired people acoustic control system for prompting and method, its system includes induction installation, energy storage device and at least one alarm set；Induction installation has detected whether blind person by sidewalk for visually impaired people, and have blind person by when according to blind person walk produce load signal generate inductive impulse signal；Electric energy is converted into after the inductive impulse signal progress signal transacting that energy storage device produces induction installation to be stored, and provides power supply for alarm set；Alarm set switches to wake-up states according to the inductive impulse signal positioned at the induction installation generation for reminding region from resting state, and reports prompting message for blind person.Mechanical energy during blind person's walking is converted into electric energy and by accumulators store by the present invention by induction installation, when blind person walks to prompting region, triggering battery is that acoustic control system for prompting is powered, realize that the acoustic control of people's row sidewalk for visually impaired people specific region is reminded, provide and accurately guide for the trip of blind person, significantly improve the convenience and security of blind person's trip.
Description
Technical field
The present invention relates to road traffic technical field, more particularly to a kind of intelligent sidewalk for visually impaired people acoustic control system for prompting and method.
Background technology
With the progress of civilization of human society, attention rate more and more higher of the whole society to physical disabilities.The cloth of means of transportation
Put and also consider the trip for being easy to physical disabilities, the accessible facilities being such as seen everywhere and sidewalk for visually impaired people, braille identification label further.Pass
Prompting and indicative function are played in people's row sidewalk for visually impaired people of system by designing different concaveconvex structures, but because concaveconvex structure difference in sidewalk for visually impaired people is tired
There are the abnormal failures such as breakage in difficulty, some road surface sidewalk for visually impaired people, cause accurately pass on reminded contents, actual miscellaneous function is limited.
Especially in places such as some traffic intersections, bus platform, overpass or ramps, the concaveconvex structure of sidewalk for visually impaired people itself distinguishes function
Can not fully known road ahead concrete condition, the trip to blind person brings very big puzzlement.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of intelligent sidewalk for visually impaired people sound for above-mentioned the deficiencies in the prior art
System for prompting and method are controlled, the mechanical energy that directly can be produced blind person's walking road pavement is converted to electric energy, and electric energy is passed through
Accumulators store, in the case of using piezoelectricity as trigger mechanism, when blind person walks to prompting region, triggering battery is acoustic control
System for prompting is powered, and realizes that the acoustic control of people's row sidewalk for visually impaired people specific region is reminded.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
According to one aspect of the present invention, there is provided a kind of intelligent sidewalk for visually impaired people acoustic control system for prompting, including induction installation, storage
Can device and at least one alarm set；The induction installation is arranged on the lower section of people's row sidewalk for visually impaired people, for detecting whether there is blind person
By sidewalk for visually impaired people, and have blind person by when according to blind person walk produce load signal generate inductive impulse signal；The energy storage
The inductive impulse signal that device is used to producing the induction installation, which carries out being converted into electric energy after signal transacting, to be stored, and is
The alarm set provides power supply；The alarm set is arranged on the prompting region of people's row sidewalk for visually impaired people, for being carried according to being located at
The inductive impulse signal that the induction installation in awake region is produced switches to wake-up states from resting state, and reports road for blind person
Condition prompting message.
The beneficial effects of the invention are as follows：The intelligent sidewalk for visually impaired people acoustic control system for prompting of the present invention, by induction installation by blind person
Mechanical energy during walking is converted into electric energy and by accumulators store, and when blind person walks to prompting region, triggering battery is sound
Control system for prompting is powered, and is realized that the acoustic control road conditions of people's row sidewalk for visually impaired people specific region are reminded, is provided and accurately draw for the trip of blind person
Lead, significantly improve the convenience and security of blind person's trip, realize the special care to blind person.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement：
Further：The induction installation includes multigroup inductive component, and multigroup inductive component is along people's row sidewalk for visually impaired people matrix
Arrangement is arranged in parallel, and multigroup inductive component is electrically connected with the energy storage device；Inductive component described in every group includes
Load transmission unit, two piezoelectric activated units and the package casing in cuboid cavity structure, the load transmission unit and
Piezoelectric activated unit is arranged in the package casing, and the load transmission unit two ends respectively with the corresponding piezoelectricity
Trigger element is made electrical contact with, and all piezoelectric activated units are electrically connected with the energy storage device, and positioned at the prompting region
The piezoelectric activated unit also electrically connected with the alarm set.
The beneficial effect of above-mentioned further scheme is：Machinery when blind person can be walked by the load transmission unit
Deformation can be converted into, and drives the piezoelectric activated unit to generate inductive impulse signal by producing deformation, is easy to energy storage to fill
Put carry out energy stores.
Further：The arcuate ribs of two pieces of settings symmetrical above and below of load transmission unit, two pieces of arcuate ribs
End correspondence connection is simultaneously connected, and exist at the top of the arch of two pieces of arcuate ribs with the corresponding piezoelectric activated unit middle part
Inwall up and down under nature respectively with the package casing is abutted.
The beneficial effect of above-mentioned further scheme is：By setting arcuate ribs, out-of-date generation can be walked in blind person larger
Deformation, be on the one hand easy to the piezoelectric activated unit to produce enough deformation and generate the inductive impulse signal of sufficient intensity,
On the other hand it is easy to improve the conversion ratio of energy, is easy to more stable provide power supply for the alarm set.
Further：The piezoelectric activated unit is in disk shape, including be round shape two layers PZT piezoceramics layer up and down,
Substrate and two load-carrying rings；Two load-carrying rings are arranged at intervals by connecting portion, and the substrate is arranged on two carryings
In region between ring, and the connecting portion connection between the edge of the substrate and two load-carrying rings, PZT pressures described in two layers
Electroceramics layer is separately positioned on the upper and lower surface of the substrate, and the two ends of the induction installation are each passed through the corresponding carrying
After ring centre bore setting is contacted with the PZT piezoceramics layers.
The beneficial effect of above-mentioned further scheme is：By setting two layers of PZT piezoelectricity to make pottery respectively in the both sides of the substrate
Enamel coating, while can make it that induction installation produces deformation, two layers of PZT piezoceramics layer of driving produces deformation towards the same side, enters
And opposite polarity inductive impulse signal is generated, and loop is formed with energy storage device, it is easy to be smoothed out signal transacting and energy
Reclaim storage.
Further：The center coaxial line of PZT piezoceramics layers, substrate and two load-carrying rings is set described in two layers.
The beneficial effect of above-mentioned further scheme is：It can be walked through the above way in the induction installation by blind person
While trampling generation deformation, the piezoelectric activated unit is driven to produce maximum deformation, and then produce the sufficiently large sense of intensity
Answer pulse signal so that whole system is sensitiveer, improve the stability and reliability of system.
Further：The energy storage device includes accumulator and at least one energy-storage battery, the accumulator respectively with
Induction installation and the energy-storage battery electrical connection, the energy-storage battery is electrically connected with the alarm set.
The beneficial effect of above-mentioned further scheme is：The sensing arteries and veins exported by the accumulator to the induction installation
Rush signal and carry out rectification, once filtering, amplification, pressure regulation and secondary filtering processing successively so that carry out the telecommunications after signal transacting
The charging requirement of the energy-storage battery Bat number is disclosure satisfy that, charging is more smoothly completed.
Further：The accumulator includes what diode D1, D2, D3, D4 for sequentially being electrically connected by four head and the tail were constituted
Rectifier bridge, electric capacity C1, electric capacity C2, triode Q, diode D5 and transformer T, wherein one layer of PZT piezoceramics layer and institute
State diode D1 and diode D2 common port electrical connection, another layer PZT piezoceramics layers and the diode D3 and two
Pole pipe D4 common port electrical connection, the common port of the diode D2 and diode D3 and the primary coil of the transformer T
One end is electrically connected, and the other end of the primary coil of the transformer T is electrically connected with the colelctor electrode of the triode Q, three pole
Pipe Q emitter stage is electrically connected with the diode D1 and diode D4 common port, and the electric capacity C1 is connected electrically in described two
Pole pipe D2 and diode D3 common port and the diode D1 and diode D4 common port and between, the transformer T's
One end of secondary coil is electrically connected with the positive pole of the diode D5, the negative pole of the diode D5 and bearing for the energy-storage battery
Pole is electrically connected, and the positive pole of the energy-storage battery is electrically connected with the other end of the secondary coil of the transformer T, and the electric capacity C2 is simultaneously
It is associated in the two ends of the energy-storage battery.
The beneficial effect of above-mentioned further scheme is：Rectification is carried out to the inductive impulse signal by the rectifier bridge,
Then the pulse signal after over commutation is filtered successively via the electric capacity C1, then be amplified by the triode Q and
Transformer T carries out pressure regulation processing, and finally energy-storage battery is charged after the electric capacity C2 secondary filterings, electric energy is smoothly completed
Storage.
Further：The alarm set includes alert circuit, and the alert circuit, which includes being stored with, reminds voice signal
Speech player Y and pulse switch S, the speech player Y, pulse switch S and energy-storage battery are in sequential series and form loop,
The control signal input of the pulse switch S is electrically connected with the induction installation in the prompting region.
The beneficial effect of above-mentioned further scheme is：Exported by the induction installation in the prompting region
Inductive impulse signal drives the pulse switch S, and blind person can be caused to run to carrying in triggering corresponding region when reminding region
Circuit of waking up switches on power with energy-storage battery, and carries out report prompting, and providing accurate information for blind person's walking guides, and improves blind person
The security and convenience of trip.
Further：The alarm set also includes identifying processing circuit, for according to the inductive impulse signal and calculating
The speed of travel, and generate deceleration prompting message when the speed of travel exceedes the pre-set velocity in the prompting region and report prompting.
The beneficial effect of above-mentioned further scheme is：Alert zone can be run in blind person by the identifying processing circuit
During domain, its speed of travel is judged, and deceleration prompting message is generated when the speed of travel exceedes the pre-set velocity in the prompting region
And prompting is reported, remind it to take care, it is ensured that to pass through prompting region.
According to another aspect of the present invention there is provided a kind of intelligent sidewalk for visually impaired people acoustic control based reminding method, comprise the following steps：
Induction installation has detected whether blind person by sidewalk for visually impaired people, and have blind person by when according to blind person walk produce load
Signal generation inductive impulse signal；
The inductive impulse signal is carried out being converted into electric energy after signal transacting and stored by energy storage device, and the energy storage is filled
It is set to and reminds the alarm set in region to provide power supply on people's row sidewalk for visually impaired people；
The inductive impulse signal that the alarm set is produced according to the induction installation positioned at the prompting region
Wake-up states are switched to from resting state, and prompting message is reported for blind person.
The intelligent sidewalk for visually impaired people acoustic control based reminding method of the present invention, by the way that mechanical energy during blind person's walking is converted into electric energy and led to
Accumulators store is crossed, triggering battery is that acoustic control system for prompting is powered when blind person walks to prompting region, realizes people's row sidewalk for visually impaired people
The acoustic control of specific region is reminded, and is provided and is accurately guided for the trip of blind person, realizes the special care to blind person.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement：
Further：Signal transacting is carried out to the inductive impulse signal to specifically include：To the inductive impulse signal successively
Carry out rectification processing, filtering process, enhanced processing, pressure regulation processing and secondary filtering processing.
The beneficial effect of above-mentioned further scheme is：The sensing arteries and veins exported by the accumulator to the induction installation
Rush signal and carry out rectification, once filtering, amplification, pressure regulation and secondary filtering processing successively so that carry out the telecommunications after signal transacting
The charging requirement of the energy-storage battery number is disclosure satisfy that, charging is more smoothly completed.
Further：The alarm set is always according to the inductive impulse signal and calculates the speed of travel, and in the speed of travel
More than the prompting region pre-set velocity when generation deceleration prompting message and report prompting.
The beneficial effect of above-mentioned further scheme is：By when blind person runs to prompting region, judging its speed of travel,
And deceleration prompting message is generated when the speed of travel exceedes the pre-set velocity in the prompting region and prompting is reported, remind it to note
Safety, it is ensured that pass through prompting region.
Brief description of the drawings
Fig. 1 is a kind of intelligent sidewalk for visually impaired people acoustic control system for prompting operation principle schematic diagram of the invention；
Fig. 2 is a kind of intelligent sidewalk for visually impaired people acoustic control system for prompting scheme of installation of the invention；
Fig. 3 is induction installation sectional view of the invention；
Fig. 4 is induction installation distributed architecture top view of the invention；
Fig. 5 is piezoelectric activated unit top view of the invention；
Fig. 6 is piezoelectric activated unit sectional view of the invention；
Fig. 7 is energy storage device circuit diagram of the invention；
Fig. 8 is alert circuit schematic diagram of the invention；
Fig. 9 is intelligent sidewalk for visually impaired people acoustic control based reminding method schematic flow sheet of the invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, induction installation, 2, energy storage device, 3, alarm set；
11st, load transmission unit, 12, piezoelectric activated unit, 13, bottom plate, 14, side plate, 15, cover plate；
111st, arcuate ribs, 121, PZT piezoceramics layers, 122, substrate, 123, load-carrying ring, 124, connecting portion.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
In the present invention, only choose situation of blind person's walking on people's row sidewalk for visually impaired people to explain, without to walking in people's row sidewalk for visually impaired people
On whether be that blind person is judged, the pedestrian on people's row sidewalk for visually impaired people of being defaulted as walking is in blind community, and normal pedestrian is in higher
Attainment will not at will on people's row sidewalk for visually impaired people walk.
In addition, in the present invention, the prompting region needs to be configured with reference to actual road conditions, such as by traffic intersection, public affairs
People's row sidewalk for visually impaired people in the place such as platform, overpass, ramp and hollow is handed over to be set to remind region, when blind person runs to prompting region
When can play preferable reminding effect.
Embodiment one, a kind of intelligent sidewalk for visually impaired people acoustic control system for prompting.It is intelligent to one kind of the present invention below in conjunction with Fig. 1
Sidewalk for visually impaired people acoustic control system for prompting describes in detail.
As depicted in figs. 1 and 2, a kind of intelligent sidewalk for visually impaired people acoustic control system for prompting, including induction installation 1, energy storage device 2 and extremely
A few alarm set 3；The induction installation 1 is arranged on the lower section of people's row sidewalk for visually impaired people, for detecting whether have blind person by sidewalk for visually impaired people,
And have blind person by when according to blind person walk produce load signal generate inductive impulse signal；The energy storage device 2 is used for
Electric energy is converted into after the inductive impulse signal progress signal transacting that the induction installation is produced to be stored, and is reminded to be described
Device 3 provides power supply；The alarm set 3 is arranged on the prompting region of people's row sidewalk for visually impaired people, for according to positioned at the prompting region
The inductive impulse signal that produces of the induction installation switch to wake-up states from resting state, and reported for blind person and remind letter
Breath.
The intelligent sidewalk for visually impaired people acoustic control system for prompting of the present invention, coordinates blind way brick to be used in conjunction with, by being arranged under blind way brick
Mechanical energy during blind person's walking is converted into electric energy and by accumulators store by the induction installation of side, and alert zone is walked in blind person
It is that acoustic control system for prompting is powered that battery is triggered during domain, realizes that the acoustic control of people's row sidewalk for visually impaired people specific region is reminded, is the trip of blind person
There is provided accurately guiding, the convenience and security of blind person's trip are significantly improved, the special care to blind person is realized.
As shown in figure 3, in the present embodiment, the induction installation 1 includes multigroup inductive component, multigroup inductive component edge
People's row sidewalk for visually impaired people matrix arrangement to be arranged in parallel, and multigroup inductive component is electrically connected with the energy storage device 2；Described in every group
Inductive component includes load transmission unit 11, two piezoelectric activated units 12 and the package casing in cuboid cavity structure,
The load transmission unit 11 and piezoelectric activated unit 12 are arranged in the package casing, and the load transmission unit 11
Two ends are made electrical contact with the corresponding piezoelectric activated unit 12 respectively, and all piezoelectric activated units 12 are filled with the energy storage
2 electrical connections are put, and are located at the piezoelectric activated unit 12 in the prompting region and are also electrically connected with the alarm set 3.Pass through
Mechanical energy when the load transmission unit 11 can walk blind person is converted into deformation, and drives the piezoelectric activated unit 12
Inductive impulse signal is generated by producing deformation, is easy to energy storage device to carry out energy stores.Here, the generation is high electricity
Press the inductive impulse signal on place road.
It is pointed out that in the present invention, the package casing includes bottom plate 13, side plate 14 and cover plate 15, wherein, bottom plate
3 and side plate 14 be made using the high cast iron of the good, hardness of rigidity, improve its structural strength, increase the service life, in addition, institute
State cover plate to be made using big, the wear-resisting nylon material of bearing capacity, strengthen its wearability and bearing capacity, reduce spoilage,
Increase the service life, reduce maintenance cost.
As shown in figure 4, preferably as one embodiment of the present of invention, in the embodiment, the load transmission unit 11
The arcuate ribs 111 of two pieces of settings symmetrical above and below, the end correspondence connection of two pieces of arcuate ribs 111 and with it is corresponding described
The middle part of piezoelectric activated unit 12 is connected, and at the top of the arch of two pieces of arcuate ribs 111 in its natural state respectively with it is described
The inwall up and down of package casing is abutted.By setting arcuate ribs 111, the larger deformation of out-of-date generation, one can be walked in blind person
Aspect is easy to the piezoelectric activated unit 12 to produce enough deformation and generates the inductive impulse signal of sufficient intensity, on the other hand
It is easy to improve the conversion ratio of energy, is easy to more stable for the alarm set 3 offer power supply.
Here, the arcuate ribs 111 are made using the potassium steel that intensity is big, rigidity is high, are arranged vertically on people's row
Road direct of travel, so may insure that its screen resilience is preferable, it is not easy to deform, can also increase the service life, and reduction is safeguarded into
This.
As it can be seen in figures 5 and 6, preferably as one embodiment of the present of invention, in the embodiment, the piezoelectric activated list
Member 12 is in disk shape, including is two layers PZT piezoceramics layer 121 up and down, substrate 122 and two load-carrying rings 123 of round shape；Two
The individual load-carrying ring 123 is arranged at intervals by connecting portion 124, and the substrate 122 is arranged between two load-carrying rings 123
In region, and connecting portion 124 between the edge of the substrate 122 and two load-carrying rings 123 is connected, PZT described in two layers
Piezoceramics layer 121 is separately positioned on the upper and lower surface of the substrate 122, and the two ends of the induction installation 1 are each passed through correspondence
The centre bore of the load-carrying ring 123 after contact setting with the PZT piezoceramics layers 121.By in the both sides of the substrate 122
Two layers of PZT piezoceramics layer 121 is set respectively, while can make it that induction installation 1 produces deformation, two layers of PZT piezoelectricity is driven
Ceramic layer 121 produces deformation towards the same side, and then generates opposite polarity inductive impulse signal, and is formed back with energy storage device
Road, is easy to be smoothed out signal transacting and energy regenerating storage.
Preferably as one embodiment of the present of invention, in the embodiment, PZT piezoceramics layers 121, base described in two layers
The center coaxial line of piece 122 and two load-carrying rings 123 is set.Through the above way can the induction installation 1 by
While generation deformation is trampled in blind person's walking, the piezoelectric activated unit 12 is driven to produce the deformation of maximum, and then produce intensity
Sufficiently large inductive impulse signal so that whole system is sensitiveer, improves the stability and reliability of system.
In the present embodiment, the energy storage device 2 includes accumulator and at least one energy-storage battery Bat, the energy storage electricity
Road is electrically connected with the induction installation 1 and energy-storage battery respectively, and the energy-storage battery Bat is electrically connected with the alarm set 3.It is logical
The accumulator is crossed to carry out the inductive impulse signal that the induction installation 1 is exported successively rectification, once filter, amplify, adjusting
Pressure and secondary filtering processing so that carry out the charging requirement that the electric signal after signal transacting disclosure satisfy that the energy-storage battery Bat,
More smoothly complete charging.
As shown in fig. 7, specifically, diode D1 that the accumulator includes sequentially being electrically connected by four head and the tail, D2,
Rectifier bridge, electric capacity C1, electric capacity C2, triode Q, diode D5 and the transformer T of D3, D4 composition, wherein one layer of PZT piezoelectricity
Ceramic layer 121 is electrically connected with the diode D1 and diode D2 common port, another layer PZT piezoceramics layers 121 with
The common port electrical connection of the diode D3 and diode D4, common port and the transformation of the diode D2 and diode D3
One end electrical connection of device T primary coil, the colelctor electrode of the other end of the primary coil of the transformer T and the triode Q
Electrical connection, the emitter stage of the triode Q is electrically connected with the diode D1 and diode D4 common port, and the electric capacity C1
Be connected electrically in the diode D2 and diode D3 common port and the diode D1 and diode D4 common port and between,
One end of the secondary coil of the transformer T is electrically connected with the positive pole of the diode D5, the negative pole of the diode D5 and institute
Energy-storage battery Bat negative pole electrical connection is stated, the positive pole of the energy-storage battery Bat is another with the secondary coil of the transformer T
End electrical connection, the electric capacity C2 is connected in parallel on the two ends of the energy-storage battery Bat.
By the rectifier bridge to the inductive impulse signal carry out rectification, then the pulse signal after over commutation via
The electric capacity C1 is filtered successively, then by the triode Q be amplified with transformer T carry out pressure regulation processing, finally by institute
Energy-storage battery Bat is charged after stating electric capacity C2 secondary filterings, power storage is smoothly completed.
As shown in figure 8, in the present embodiment, the alarm set includes alert circuit, the alert circuit includes being stored with
Remind the speech player Y and pulse switch S, the speech player Y, pulse switch S and energy-storage battery Bat of voice signal suitable
Secondary series connection simultaneously forms loop, the control signal input of the pulse switch S and the sensing in the prompting region
Device is electrically connected.The inductive impulse signal exported by the induction installation in the prompting region drives the pulse
S is switched, the alert circuit that blind person is run to when reminding region in triggering corresponding region can be caused to connect electricity with energy-storage battery Bat
Source, and report prompting is carried out, providing accurate information for blind person's walking guides, and improves the security and convenience of blind person's trip.
In addition, when blind person leaves prompting region, the induction installation 1 in the prompting region would not be exported
Inductive impulse signal, the at this moment pulse switch S disconnections, the alarm set 3 is powered off and is stopped, and saves the energy.
Preferably, the alarm set also includes identifying processing circuit, for according to the inductive impulse signal and calculating
The speed of travel, and generate deceleration prompting message when the speed of travel exceedes the pre-set velocity in the prompting region and report prompting.
When prompting region can be run in blind person by the identifying processing circuit, its speed of travel is judged, and it is super in the speed of travel
Deceleration prompting message is generated when crossing the pre-set velocity in the prompting region and prompting is reported, reminds it to take care, it is ensured that smoothly
By reminding region.
In the present embodiment, the alert circuit can be using microprocessors such as single-chip microcomputer or ARM, by the induction installation 1
The inductive impulse signal output of output is to the microprocessor such as single-chip microcomputer or ARM, arteries and veins described in the microcomputer reads such as single-chip microcomputer or ARM
Frequency and impulse amplitude are rushed, calculating blind person further according to the pulse frequency and amplitude is reminding the cadence and stride in region, most
Its speed of travel can accurately be calculated according to the cadence and stride afterwards.
Embodiment two, a kind of intelligent sidewalk for visually impaired people acoustic control based reminding method.It is intelligent to one kind of the present invention below in conjunction with Fig. 9
Sidewalk for visually impaired people acoustic control based reminding method describes in detail.
As shown in figure 9, a kind of intelligent sidewalk for visually impaired people acoustic control based reminding method, comprises the following steps：
Induction installation 1 has detected whether blind person by sidewalk for visually impaired people, and have blind person by when according to blind person walk produce load
Lotus signal generation inductive impulse signal；
The inductive impulse signal is carried out being converted into electric energy after signal transacting and stored by energy storage device 2, and the energy storage
Device 2 provides power supply for the alarm set 3 in the prompting region on people's row sidewalk for visually impaired people；
The inductive impulse that the alarm set 3 is produced according to the induction installation 1 positioned at the prompting region is believed
Number switch to wake-up states from resting state, and prompting message is reported for blind person.
The intelligent sidewalk for visually impaired people acoustic control based reminding method of the present invention, by the way that mechanical energy during blind person's walking is converted into electric energy and led to
Accumulators store is crossed, triggering battery is that acoustic control system for prompting is powered when blind person walks to prompting region, realizes people's row sidewalk for visually impaired people
The acoustic control of specific region is reminded, and is provided and is accurately guided for the trip of blind person, realizes the special care to blind person.
Preferably as one embodiment of the present of invention, in the embodiment, the inductive impulse signal is carried out at signal
Reason is specifically included：Carry out rectification processing, filtering process, enhanced processing, a pressure regulation processing successively to the inductive impulse signal
With secondary filtering processing.By the accumulator inductive impulse signal that the induction installation 1 is exported is carried out successively rectification,
Once filter, amplify, pressure regulation and secondary filtering are handled so that carrying out the electric signal after signal transacting and disclosure satisfy that the energy storage electricity
Pond Bat charging requirement, more smoothly completes charging.
Preferably, the alarm set 3 is always according to the inductive impulse signal and calculates the speed of travel, and in the speed of travel
More than the prompting region pre-set velocity when generation deceleration prompting message and report prompting.Can by the identifying processing circuit
When blind person runs to prompting region, to judge its speed of travel, and exceed the default speed in the prompting region in the speed of travel
Deceleration prompting message is generated when spending and prompting is reported, reminds it to take care, it is ensured that prompting region is passed through.
Specifically, first according to the inductive impulse signal-obtaining pulse frequency and impulse amplitude, further according to the pulse
Frequency and amplitude calculate blind person and are reminding the cadence and stride in region, and walking speed is calculated finally according to the cadence and stride
Degree.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of intelligent sidewalk for visually impaired people acoustic control system for prompting, it is characterised in that：Including induction installation (1), energy storage device (2) and at least
One alarm set (3)；
The induction installation (1) is arranged on the lower section of people's row sidewalk for visually impaired people, for detecting whether having blind person by sidewalk for visually impaired people, and is having blind person
By when according to blind person walk produce load signal generate inductive impulse signal；
The energy storage device (2) is converted into electricity after carrying out signal transacting for the inductive impulse signal for producing the induction installation
It can be stored, and power supply is provided for the alarm set (3)；
The alarm set (3) is arranged on the prompting region of people's row sidewalk for visually impaired people, for according to the sense for being located at the prompting region
Answer the inductive impulse signal that device is produced to switch to wake-up states from resting state, and road conditions prompting message is reported for blind person.
2. intelligent sidewalk for visually impaired people acoustic control system for prompting according to claim 1, it is characterised in that：Induction installation (1) bag
Multigroup inductive component is included, multigroup inductive component is arranged in parallel along people's row sidewalk for visually impaired people matrix arrangement, and multigroup sense group
Part is electrically connected with the energy storage device (2)；
Inductive component described in every group includes load transmission unit (11), two piezoelectric activated units (12) and in cuboid cavity
The package casing of structure, the load transmission unit (11) and piezoelectric activated unit (12) are arranged in the package casing, and
The two ends of the load transmission unit (11) make electrical contact with the corresponding piezoelectric activated unit (12) respectively, all piezoelectricity
Trigger element (12) is electrically connected with the energy storage device (2), and positioned at the piezoelectric activated unit in the prompting region
(12) also electrically connected with the alarm set (3).
3. intelligent sidewalk for visually impaired people acoustic control system for prompting according to claim 2, it is characterised in that：The load transmission unit
The arcuate ribs (111) of (11) two pieces of settings symmetrical above and below, the end correspondence connection of two pieces of arcuate ribs (111) and with it is right
Connected in the middle part of the piezoelectric activated unit (12) answered, and in nature at the top of the arch of two pieces of arcuate ribs (111)
It is lower respectively with the inwall up and down of the package casing is low connects.
4. intelligent sidewalk for visually impaired people acoustic control system for prompting according to claim 2, it is characterised in that：The piezoelectric activated unit
(12) it is in disk shape, including is two layers PZT piezoceramics layer (121) up and down, substrate (122) and two load-carrying rings of round shape
(123)；
Two load-carrying rings (123) are arranged at intervals by connecting portion (124), and the substrate (122), which is arranged on described in two, holds
Carry in the region between ring (123), and the connecting portion between the edge of the substrate (122) and two load-carrying rings (123)
(124) connect, PZT piezoceramics layers (121) are separately positioned on the upper and lower surface of the substrate (122), the sense described in two layers
The two ends of device (1) are answered to be each passed through after the corresponding load-carrying ring (123) centre bore and the PZT piezoceramics layers (121)
Contact is set.
5. intelligent sidewalk for visually impaired people acoustic control system for prompting according to claim 4, it is characterised in that：Energy storage device (2) bag
Accumulator and at least one energy-storage battery are included, the accumulator is electrically connected with the induction installation (1) and energy-storage battery respectively
Connect, the energy-storage battery is electrically connected with the alarm set (3).
6. intelligent sidewalk for visually impaired people acoustic control system for prompting according to claim 5, it is characterised in that：The accumulator include by
The rectifier bridge for diode D1, D2, D3, D4 composition that four head and the tail are sequentially electrically connected, electric capacity C1, electric capacity C2, triode Q, two poles
Pipe D5 and transformer T, wherein one layer of PZT piezoceramics layer (121) and the diode D1 and diode D2 common port
Electrical connection, another layer PZT piezoceramics layers (121) electrically connect with the diode D3 and diode D4 common port, institute
The common port for stating diode D2 and diode D3 is electrically connected with one end of the primary coil of the transformer T, the transformer T's
The other end of primary coil is electrically connected with the colelctor electrode of the triode Q, the emitter stage of the triode Q and the diode D1
Electrically connected with diode D4 common port, and the electric capacity C1 be connected electrically in the diode D2 and diode D3 common port with
The common port of the diode D1 and diode D4 and between, one end of the secondary coil of the transformer T and the diode
D5 positive pole electrical connection, the negative pole of the diode D5 is electrically connected with the negative pole of the energy-storage battery, and the energy-storage battery is just
Pole is electrically connected with the other end of the secondary coil of the transformer T, and the electric capacity C2 is connected in parallel on the two ends of the energy-storage battery.
7. intelligent sidewalk for visually impaired people acoustic control system for prompting according to claim 6, it is characterised in that：The alarm set includes carrying
Awake circuit, the alert circuit, which includes being stored with, reminds the speech player Y and pulse switch S of voice signal, and the voice is broadcast
Put device Y, pulse switch S and energy-storage battery is in sequential series and form loop, the control signal input of the pulse switch S and position
In the induction installation (1) electrical connection in the prompting region.
8. intelligent sidewalk for visually impaired people acoustic control system for prompting according to claim 6, it is characterised in that：The alarm set also includes
Identifying processing circuit, exceedes described remind for according to the inductive impulse signal and calculating the speed of travel, and in the speed of travel
Deceleration prompting message is generated during the pre-set velocity in region and prompting is reported.
9. a kind of intelligent sidewalk for visually impaired people acoustic control based reminding method, it is characterised in that comprise the following steps：
Induction installation (1) has detected whether blind person by sidewalk for visually impaired people, and have blind person by when according to blind person walk produce load
Signal generation inductive impulse signal；
The inductive impulse signal is carried out being converted into electric energy after signal transacting and stored by energy storage device (2), and the energy storage is filled
(2) are put to remind the alarm set (3) in region to provide power supply on people's row sidewalk for visually impaired people；
The inductive impulse letter that the alarm set (3) produces according to the induction installation (1) positioned at the prompting region
Number switch to wake-up states from resting state, and prompting message is reported for blind person.
10. intelligent sidewalk for visually impaired people acoustic control based reminding method according to claim 9, it is characterised in that：The alarm set (3) is also
According to the inductive impulse signal and the speed of travel is calculated, and given birth to when the speed of travel exceedes the pre-set velocity in the prompting region
Information of being walked into slowing down simultaneously reports prompting.
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| CN201710620503.2A CN107293111A (en) | 2017-07-26 | 2017-07-26 | A kind of intelligent sidewalk for visually impaired people acoustic control system for prompting and method |
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| CN201710620503.2A CN107293111A (en) | 2017-07-26 | 2017-07-26 | A kind of intelligent sidewalk for visually impaired people acoustic control system for prompting and method |
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Application publication date: 20171024 |