CN207268904U - The road traffic monitoring system of independent self energizing - Google Patents
The road traffic monitoring system of independent self energizing Download PDFInfo
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- CN207268904U CN207268904U CN201721319118.6U CN201721319118U CN207268904U CN 207268904 U CN207268904 U CN 207268904U CN 201721319118 U CN201721319118 U CN 201721319118U CN 207268904 U CN207268904 U CN 207268904U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model provides a kind of road traffic monitoring system of independent self energizing, including piezoelectric patches, close to switch, energy-storage units, wind-force prisoner's energy unit, solar panel, signal processing unit, wireless transmitter module and terminal server utility model utilize piezoelectric patches stress-electric coupling feature and the principle close to switch detection object, utilize piezoelectric energy-capturing, photovoltaic generation, the mode of wind-force prisoner's energy realizes that system self power generation energizes, by piezoelectric detection unit with calculating various traffic informations close to switching signal, and pass terminal server back in a manner of being wirelessly transferred, realize traffic monitoring and management.The utility model can encrypt road information monitoring network, and data basis is provided for traffic big data, and simultaneity factor self power generation is environmentally protective, and saves a large amount of wire rods, saves a variety of materials.
Description
Technical field
It the utility model is related to a kind of road traffic monitoring system of independent self energizing.
Background technology
China is in infrastructure construction acceleration, and road traffic facility is perfect all the more.Counted according to Department of Transportation,
By in July, 2017, China's highway mileage open to traffic ranks first in the world more than 13.1 ten thousand kilometers.Traffic infrastructure
Regional development has been greatly facilitated, has become the important tool for safeguarding national the Belt and Road strategic plan.However, driven by driver
The influence of the factors such as the road safety coefficient that horizontal quality, orographic factor determine, traffic safety problem situation remain unchanged severe：
Overload, hypervelocity problem remain unchanged, and the detection section density for monitoring over loading and excessive speed is too low, still falls within the state of " selective examination "；If pass through
Traditional approach lays wired sensor, due to the great characteristic of means of transportation span, will expend lot of materials, such as transmission cable
With the various probes of measurement various parameters, and the various energy, for example electric energy on the transmission line etc. is consumed.In addition, present
Wisdom traffic technology gradually develops, more and more vigorous for the demand of traffic big data in order to optimize Arrangement of road net.Obtain in detail
Accurate flow information is by as next important topic of road traffic monitoring system.
Piezoelectric coordinates can solve the problems, such as above well close to switch.Piezoelectric patches is a kind of electric elements, can be with
The form that certain load is converted into voltage exports.If the selection of piezoelectric patches model is correct, and combines a variety of new energy modes, it is
System can also realize self power generation, be inputted without external power supply, reduce power grid burden.Engineering Control and meter are commonly applied to close to switch
The functions such as number, count precisely, on the basis of it need not consume excessive power, can accurately and directly perceive vehicle number and lead to
The time is spent, applies it to vehicle flowrate, there is the advantages of vehicle detection accuracy is high, and miscount rate is small.
The content of the invention
The technical problem to be solved by the present invention is to provide a kind of road traffic monitoring system of independent self energizing, this is
System using piezoelectric energy-capturing unit, solar panel, wind-force prisoner can unit realize self power generation, using monitoring piezoelectric-array and close
Switch and record load-carrying, speed, the information such as vehicle flowrate, and by information back terminal server, to facilitate staff to slap comprehensively
Hold surface conditions, such as traffic congestion, overspeed of vehicle information etc..
Technical solution is used by the utility model solves the technical problem：A kind of road traffic prison of independent self energizing
Control system, including piezoelectric patches, close switch, wireless transmitter module, rectification circuit, energy-storage units, wind-force prisoner's energy unit, sun electricity
Pond plate, signal processing unit and terminal server.The piezoelectric patches, close switch and piezoelectric patches are embedded in road table, part
Piezoelectric patches forms piezoelectric detection unit, and the piezoelectric detection unit is across whole track, by the chopped-off head inspection perpendicular to road direction
Survey unit and intersect with described chopped-off head detection unit one end in 15-25 ° secondary detection unit composition, chopped-off head detection unit and time
Level detection unit is formed by piezoelectric patches arrangement.It is described to be located at track centre position close to switch, and detect list with chopped-off head
Member is adjacent.Remainder piezoelectric patches forms piezoelectric energy-capturing unit.Piezoelectric energy-capturing unit, wind-force prisoner can unit, solar panels
Energy acquisition unit is formed, is connected respectively by rectification circuit with the energy-storage units；Energy-storage units and wireless transmitter module, letter
Number processing unit, be connected close to switch, is powered respectively.Each piezoelectric patches and close switch point in piezoelectric detection unit
It is not connected with the signal processing unit, signal processing unit is connected by wireless transmitter module with terminal server.
The beneficial effects of the utility model are：The utility model is captureed by three kinds of generation of electricity by new energy modes using piezoelectricity
The stress-electric coupling feature of energy unit, passes through piezoelectric energy-capturing unit, solar panel and wind-force by vehicle and capturees energy unit collection
To energy be used, realize that self power generation feed system uses, be truly realized the independent automatic running of system, for green nothing
The intelligent traffic equipment of pollution proposes brand-new solution；Meanwhile system is without all setting up cable networking, so that it may obtains
The various information of road traffic are obtained, a large amount of wire rod and other materials resources can be saved；Further, since it is restricted small spy
Point, equipment can more crypto set each section for being laid in road, enhance monitoring visibility, further lift traffic intelligent
Change degree, mass data resource is provided for traffic big data.Compared with existing Traffic monitoring technology, using connecing in self-generating system
Nearly switch detection vehicle number, the infrared detection system than needing exterior energy supply are significantly energy saving；Asymmetric piezoelectricity monitoring battle array in system
Row and close switch cooperate, you can obtain the related data of road traffic.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is Tthe utility model system schematic diagram；
Fig. 2 is Tthe utility model system schematic perspective view；
Fig. 3 is close to switching output waveform schematic diagram；
Fig. 4 is that asymmetric piezoelectricity monitors array output waveform diagram；
Fig. 5 judges schematic diagram for vehicle position information；
Fig. 6 is the geometric representation for calculating car speed；
Fig. 7 is to monitor array output waveform experimental simulation schematic diagram at the same time close to switch and asymmetric piezoelectricity；
Piezoelectric energy-capturing unit 1 in figure, close to switch 2, piezoelectricity monitoring unit 3, wireless transmitter module 4, rectification circuit 5, storage
Energy unit 6, wind-force prisoner's energy unit 7, solar panel 8, signal processing unit 9, control centre 10；Parallel heavy line represents row
Lane line, dotted line represent vehicle driving trace, and dotted line is only used for labeling position.
Embodiment
A kind of road traffic monitoring system of independent self energizing, including piezoelectric patches, close switch 2, energy-storage units, wireless hair
Penetrate module 4, wind-force prisoner's energy unit 7, solar panel 8, signal processing unit 9 and terminal server 10.The piezoelectric patches,
Road table is embedded in close to switch 2, part piezoelectric patches composition piezoelectricity monitoring unit 3, the piezoelectric detection unit 3 is across whole car
Road, intersects by the chopped-off head detection unit perpendicular to road direction and with described chopped-off head detection unit one end and is examined in 15-25 ° of secondary
Unit composition is surveyed, chopped-off head detection unit and secondary detection unit are formed (as known in this area by piezoelectric patches arrangement
General knowledge, to improve precision, close-packed arrays between piezoelectric patches, are separated by insulating cement between adjacent piezoelectric patches).Described approach is opened
Close 2 and be located at track centre position, and it is adjacent with chopped-off head detection unit.Remainder piezoelectric patches composition piezoelectric energy-capturing unit 1.Piezoelectricity
Prisoner can unit 1, wind-force prisoner can unit 7, solar panel 8 form energy acquisition unit, respectively by rectification circuit 5 with it is described
Energy-storage units 6 are connected；Energy-storage units 6 are connected with wireless transmitter module 4, signal processing unit 9, close to switch 2, are supplied respectively
Electricity.Each piezoelectric patches and close switch 2 in piezoelectric detection unit are connected with the signal processing unit 9 respectively, at signal
Reason unit 9 can obtain related monitoring number according to piezoelectric patches and the data measured close to switch 2 by simple logical operation
According to.Signal processing unit 9 is connected by wireless transmitter module 4 with terminal server 10, for sending local traffic information.Pass through
The utility model, it is possible to achieve over-speed vehicles, overloaded vehicle, the intelligent early-warning of vehicle flowrate.
Wherein, the arrangement mode of the piezoelectric patches in piezoelectric energy-capturing unit 1 can be any-mode, and the square of rule is used in figure
Shape array gathers, the energy supply for system.When vehicle presses through piezoelectric patches, gravitional force part is converted to electricity by piezoelectric patches
Can, it is stored in energy-storage units.Three kinds of the traffic monitor collection piezoelectricity, wind-power electricity generation and solar power generation generation modes are one
Body, without externally fed and can be utilized power storage more than needed by accumulator.When appearance monitoring section vehicle is rare, rainy days
When special circumstances, three kinds of generation modes can complement each other gas, ensure the normal operation of system.
Elaborate with reference to use of the embodiment to the utility model, those skilled in the art by above-mentioned component into
After row connection, traffic relevant information can be obtained according to the description below.
First, two intersecting straight lines that angle is 15-25 ° are determined, are respectively used to arrangement chopped-off head detection unit and secondary inspection
Unit is surveyed, in two detection units, piezoelectric patches number consecutively, is respectively P1,P2···Pn,P1',P2'···Pn'；It is adjacent
The control of the distance between two piezoelectric patches is between 5~10 centimetres.Arranged in lane center close to switch 2, and the switch and head
Level detection unit is adjacent.Then operated according to following steps, to detect road conditions：
(1) first, according to the working status close to switch, the electric signal obtained to piezoelectric detection unit is carried out at segmentation
Reason, Fig. 7 shows this segmentation process, shows to have in the range of this section of monitoring time two cars by the way that and first car is
Twin shaft car, second car are three axis cars；Fig. 3 individually shows two conducting phases close to switch, shows within the period
There are two cars to drive through the detection zone.
(2) the present embodiment is chosen first conducting phase and is tested, and vehicle rolls piezoelectricity when by detection unit
Piece.The piezoelectric patches being rolled produces electric signal.According to the sequence number for the piezoelectric patches that electric signal occurs, you can obtain vehicle headstock pressure
Cross the position P of two detection unitsL,PR,PL',PR', and time difference t of the left and right front-wheel Jing Guo chopped-off head detection unit1, and left and right
Time difference t of the front-wheel by secondary detection unit2；Fig. 6 shows PL,PR,PL',PR' position and t1And t2Period vehicle
The distance of traveling.
(3) three length distances are measuredP is only needed to know in a practical situationR、PL'、
PR' position.With reference to time difference t obtained above1、t2, you can the speed for obtaining vehicle isIt is specific to calculate
Process is such as shown in (3.1)-(3.3).
(3.1) when calculating left and right front-wheel passes through secondary detection unit respectively, the distance between piezoelectric patches pressed D,
(3.2) chopped-off head detection unit and secondary detection unit angle of cut α are assumed, it is assumed that vehicle driving trace and chopped-off head detection are single
The angle β of member, thenWherein,Fig. 6 shows L1、L2With the geometry of angle β
Position relationship, and L2、With the geometry site of angle α.
(3.3) speed is obtainedFrom geometrical property, triangle I and triangle II are congruent, then car
Running time t1T can be equally transferred to2Right side, therefore the corresponding running times of d shown in figure are exactly | t2-t1|, by
The calculation formula that geometrical relationship in figure can be seen that d is
ThereforeObtainSin β obtained above are brought into, you can
Obtain the abbreviation of speed formula
The load-carrying method for detecting road vehicles is as follows：
In above-mentioned same conducting phase, all wheels of vehicle successively press through chopped-off head detection unit and secondary detection unit,
When the load-carrying successively presses through chopped-off head detection unit or secondary detection unit for all wheels of vehicle, weight that piezoelectric patches measures it
With.
In the present embodiment, voltage signal is converted to by force signal using existing piezoelectricity dynamic force method for sensing, in acquisition
State vehicle load.
In addition, by the utility model, the following information of vehicle can also be determined, and then can be used for the judgement of overload：
In above-mentioned same conducting phase, the ripple of the electric signal of any piezoelectric patches output being rolled in chopped-off head detection unit
Peak number is axle number.In Fig. 4 as can be seen that in first conducting phase described in Fig. 3, there are two wave crests, that is, show
The axle number of the stage interior vehicle by detection zone is 2.
In above-mentioned same conducting phase, vehicle commander is obtained by ON time and speed v；
By the axle number of above-mentioned acquisition and vehicle commander, the freight weight limit of vehicle is obtained.
According to the load-carrying of vehicle weight limitation and vehicle, detect whether to overload.
In addition, by the utility model, the following information on road surface can also be obtained：
According to the conducting number close to switch within the unit interval, road surface vehicle flowrate is obtained.Such as in some cycle T, connect
The rising edge number that nearly switch conduction produces is ncar, then flows per unit time be
According to the time interval between the rising edge of two adjacent conducting phases, time headway is obtained, as shown in figure 3, on
It is a time headway between adjacent two cars to rise along time interval between 1 and rising edge 2.
Claims (1)
1. a kind of road traffic monitoring system of independent self energizing, it is characterised in that including piezoelectric patches, approach switch (2), wireless
Transmitting module (4), rectification circuit (5), energy-storage units (6), wind-force prisoner's energy unit (7), solar panel (8), signal processing list
First (9) and terminal server (10)；The piezoelectric patches, close switch (2) and piezoelectric patches are embedded in road table, part piezoelectric patches
Piezoelectric detection unit (3) is formed, the piezoelectric detection unit (3) is across whole track, by the chopped-off head inspection perpendicular to road direction
Survey unit and intersect with described chopped-off head detection unit one end in 15-25 ° secondary detection unit composition, chopped-off head detection unit and time
Level detection unit is formed by piezoelectric patches arrangement；It is described to be located at track centre position close to switch (2), and detected with chopped-off head
Unit is adjacent；Remainder piezoelectric patches composition piezoelectric energy-capturing unit (1)；Piezoelectric energy-capturing unit (1), wind-force prisoner can units (7), too
Positive energy solar panel (8) forms energy acquisition unit, is connected respectively by rectification circuit (5) with the energy-storage units (6)；Energy storage list
Member is connected with wireless transmitter module (4), signal processing unit (9), close to switch (2), is powered respectively；Piezoelectric detection unit
(3) each piezoelectric patches and close switch (2) in are connected with the signal processing unit (9) respectively, signal processing unit (9)
It is connected by wireless transmitter module (4) with terminal server (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721319118.6U CN207268904U (en) | 2017-10-13 | 2017-10-13 | The road traffic monitoring system of independent self energizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721319118.6U CN207268904U (en) | 2017-10-13 | 2017-10-13 | The road traffic monitoring system of independent self energizing |
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| Publication Number | Publication Date |
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| CN207268904U true CN207268904U (en) | 2018-04-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742424A (en) * | 2017-10-13 | 2018-02-27 | 浙江大学 | A kind of comprehensive road traffic monitoring system of independent self power generation |
| CN108983764A (en) * | 2018-04-27 | 2018-12-11 | 榛硕（武汉）智能科技有限公司 | Based on the unmanned control system of vehicle and automobile |
-
2017
- 2017-10-13 CN CN201721319118.6U patent/CN207268904U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742424A (en) * | 2017-10-13 | 2018-02-27 | 浙江大学 | A kind of comprehensive road traffic monitoring system of independent self power generation |
| CN107742424B (en) * | 2017-10-13 | 2024-05-14 | 浙江大学 | All-round road traffic monitored control system of independent self-generating electricity |
| CN108983764A (en) * | 2018-04-27 | 2018-12-11 | 榛硕（武汉）智能科技有限公司 | Based on the unmanned control system of vehicle and automobile |
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