CN104008577A - Road section toll collection system based on visible light communication - Google Patents
Road section toll collection system based on visible light communication Download PDFInfo
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- CN104008577A CN104008577A CN201410249141.7A CN201410249141A CN104008577A CN 104008577 A CN104008577 A CN 104008577A CN 201410249141 A CN201410249141 A CN 201410249141A CN 104008577 A CN104008577 A CN 104008577A
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- 230000005540 biological transmission Effects 0.000 claims description 8
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- 238000012806 monitoring device Methods 0.000 abstract 2
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Abstract
A road section toll collection system based on visible light communication comprises a running vehicle, a traffic monitoring device and a freeway toll collection settlement center, wherein the running vehicle is provided with a on-board unit (OBU), the traffic monitoring device is provided with a road-side unit (RSU), the OBU communicates with the RSU in a wireless mode through visible light, the RSU transmits vehicle data to the freeway toll collection settlement center, and the freeway toll collection settlement center returns worked out toll data to the RSU. The road section toll collection system can use the various advantages of visible light communication, achieve vehicle information collection troubling an existing intelligent traffic system (ITS), and achieve automatic road section toll collection of a freeway.
Description
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technical field:
The invention belongs to the interleaving techniques field of optical communication and intelligent transportation, it relates to a kind of section Fare Collection System based on visible light communication.
background technology:
ETC(Electronic To11 Collection, not Auto Fare Collection Parking System) be on expressway tol lcollection section, charge station is by roadside unit (Road-Side Unit, RSU) with board units (On-Board Unit, OBU) the special short distance communication between, in the situation that taking any operation without vehicle parking with other toll collectors, complete a kind of full automatic charging system of charge processing procedure.The problems such as this traffic jam, the wasting of resources, air pollution and the fund that can effectively avoid conventional Car park payment to produce is out of control.ETC system is the important component part of intelligent transportation system, is also proven technique gradually in the development and application of recent domestic highway tolling system.
The ETC system generally adopting in the world is at present based on microwave communication technology, in vehicle and the trackside communication technology, uses radio frequency.As everyone knows, radio bands resource is very nervous, and cost is higher, and anti-interference is poor, and may have potential harmfulness to health, also easily causes ten to disturb to system.Therefore its application is very limited.
Compared with microwave communication technology, visible ray especially LED visible light communication has following outstanding advantages:
(1) visible light communication technology belongs to green communications.The radiation spectrum of its signal optical source is positioned at the visible light wave range harmless to human eye (380-780nm), does not have electromagnetic radiation, very safe to the person.
(2) visible light communication is ubiquitous, convenient and swift.The place of any needs can be arranged on for the LED light source of communicating by letter, high speed wireless data transmission can be realized easily.
(3) signal optical source emissive power is high.In visible LED communication system, because communication light source is and the duplicate incoherent visible ray of natural light, therefore generally without limit transmit power.
(4) demonstrate,prove without radio-frequency spectrum.Owing to being subject to radio-frequency spectrum control, available radio frequency is very limited, and LED-based visible light communication does not exist the frequency-assignment problem in other radio communication.
(5) without electromagnetic interference (EMI).Can be applicable to the various occasions to the strict restriction of electromagnetic interference (EMI).
It is roughly as follows that outdoor LED visible light communication technology is applied in technical development route in intelligent transportation system (ITS:Intelligent Transportation Systems).The people such as the G.Pang of Hong Kong University have proposed to utilize LED stop-light for vehicle transferring voice broadcast singal in 1998, voice signal is modulated by OOK and added to LED light source, have realized the wireless LED transmission of visible light of low speed.The scientific research personnel of Zhong Chuan research department has proposed LED highway lighting communication system in 2003.The people such as G.Pang only launch research to utilizing LED traffic lights to carry out voice transfer, the scientific research personnel of Zhong Chuan research department has analyzed the quality of signal to noise ratio (S/N ratio) under different receive direction angles and field angle in LED highway lighting communication system, and under certain bit error rate the relation of signal to noise ratio (S/N ratio) and receiving data rate, think that LED visible ray highway lighting communication system is better than infrared highway communication communication system.
summary of the invention:
The technical problem to be solved in the present invention is for above-mentioned deficiency of the prior art, and a kind of section Fare Collection System based on visible light communication is provided.
Section Fare Collection System based on visible light communication provided by the invention, concrete technical scheme is as follows:
A section Fare Collection System based on visible light communication, comprises board units, roadside unit and expressway tol lcollection settlement center; Described board units is arranged on driving vehicle, and described roadside unit is arranged on traffic monitoring equipment; Wherein, between described board units and described roadside unit, carry out radio communication by visible ray; Vehicle data transmission is given described expressway tol lcollection settlement center by described roadside unit, and the charge data calculating is returned to described roadside unit by described expressway tol lcollection settlement center.
Preferably, described board units comprises VISIBLE LIGHT EMISSION unit; Described roadside unit comprises visible ray receiving element and picture control equipment; Described VISIBLE LIGHT EMISSION unit comprises single-chip microcomputer, the LED driving circuit being connected with described single-chip microcomputer, light emitting diode and the power module being connected with described LED driving circuit; Described visible ray receiving element comprises photoelectricity receiving end, the signal amplification circuit being connected with described photoelectricity receiving end and the signal demodulating circuit being connected with described signal amplification circuit; In the time that described roadside unit detects described driving vehicle by freeway toll station, the visible ray receiving element of described roadside unit receives the LED light signal of being launched by the VISIBLE LIGHT EMISSION unit of described board units; This LED light signal is loaded with the real-time information of this driving vehicle; The real-time information of this driving vehicle comprises the operating range on license plate number, speed of operation, vehicle, expressway charge section; The vehicle data transmission of the real-time information that comprises described driving vehicle is given described expressway tol lcollection settlement center by described roadside unit, described expressway tol lcollection settlement center is according to the charge data calculating, the IC-card with finance trade function or the account associated with this driving vehicle are withholdd, and this left fund after paying dues of deduction is write back to described IC-card or account, promptly complete charging process.
Preferably, described traffic monitoring equipment also comprises display module, Keysheet module and fault processing module further, in the time not charging, this display module shows current time information and real-time monitoring video, shows immediately toll amount or charge unsuccessfully prompting after having charged; Keyboard can help user to call and store pay imformation and video information; In the time charging unsuccessfully, notify fault processing module, proceed to artificial treatment.
Preferably, this VISIBLE LIGHT EMISSION unit can be integrated on the headlamp of described driving vehicle.
Preferably, this IC-card with finance trade function can be integrated on the board units of described driving vehicle.
Preferably, described VISIBLE LIGHT EMISSION unit is mobile phone.
Preferably, described VISIBLE LIGHT EMISSION unit is photon client.
Preferably, between described board units and described roadside unit, adopt active half-duplex operation.
Preferably, described photoelectricity receiving end is photodiode, and utilizes optical concentrator or optical antenna to increase the light intensity that arrives described photodiode surface; Described signal amplification circuit adopts the preposition structure for amplifying of transimpedance.
Preferably, this section Fare Collection System further comprises control unit, and this control unit is car lug.
The beneficial effect of the section Fare Collection System based on visible light communication provided by the invention is: the advantages such as the degree of stability of utilizing visible light communication to have is good, cost is low, good confidentiality, nocuity is little, frequency of light wave is high, bandwidth, frequency resource are abundant, solve the collecting vehicle information problem of having a headache the most in current intelligent transportation system ITS, can realize express highway section automatic charging.This system also can be used on automatic garage door, private savings parking lot etc. and locates, and realizes unmanned management.
brief description of the drawings:
Fig. 1 is the schematic diagram of the section Fare Collection System based on visible light communication provided by the present invention.
Fig. 2 is the functional block diagram of the component units of the section Fare Collection System based on visible light communication provided by the present invention.
Wherein Reference numeral 10-driving vehicle; 101-board units OBU; 102-VISIBLE LIGHT EMISSION unit; 103-financial IC card; 20-traffic monitoring equipment; 201-roadside unit RSU; 202-visible ray receiving element; 203-picture control equipment; 30-expressway tol lcollection settlement center.
embodiment:
Now by reference to the accompanying drawings the present invention is described further.
As Fig. 1 shows the section Fare Collection System based on visible light communication provided by the present invention.Fig. 2 shows the functional block diagram of the component units of the section Fare Collection System based on visible light communication provided by the present invention.
A section Fare Collection System based on visible light communication, comprises driving vehicle 10, traffic monitoring equipment 20 and expressway tol lcollection settlement center 30, on described driving vehicle 10, board units OBU101 is installed; On described traffic monitoring equipment 20, roadside unit RSU201 is installed; Wherein, between described board units OBU101 and described roadside unit RSU201, carry out radio communication by visible ray; Vehicle data transmission is given described expressway tol lcollection settlement center 30 by described roadside unit RSU201, and the charge data calculating is returned to described roadside unit RSU201 by described expressway tol lcollection settlement center 30.
Preferably, described board units OBU101 comprises VISIBLE LIGHT EMISSION unit 102; Described roadside unit RSU201 comprises visible ray receiving element 202 and picture control equipment 203; Described VISIBLE LIGHT EMISSION unit 102 comprises single-chip microcomputer, the LED driving circuit being connected with described single-chip microcomputer, light emitting diode and the power module being connected with described LED driving circuit; Described visible ray receiving element 202 comprises photoelectricity receiving end, the signal amplification circuit being connected with described photoelectricity receiving end and the signal demodulating circuit being connected with described signal amplification circuit; In the time that described roadside unit RSU201 detects described driving vehicle 10 by freeway toll station, the visible ray receiving element 202 of described roadside unit RSU201 receives the LED light signal of being launched by the VISIBLE LIGHT EMISSION unit 102 of described board units OBU101; This LED light signal is loaded with the real-time information of this driving vehicle 10; The real-time information of this driving vehicle 10 comprises the operating range on license plate number, speed of operation, vehicle, expressway charge section; The vehicle data transmission of the real-time information that comprises described driving vehicle 10 is given described expressway tol lcollection settlement center 30 by described roadside unit RSU201, described expressway tol lcollection settlement center 30 is according to the charge data calculating, the IC-card with finance trade function 103 associated with this driving vehicle 10 withholdd, and this left fund after paying dues of deduction is write back to described IC-card 103, promptly complete charging process.
Preferably, described traffic monitoring equipment 20 also comprises display module, Keysheet module and fault processing module further, in the time not charging, this display module shows current time information and real-time monitoring video, shows immediately toll amount or charge unsuccessfully prompting after having charged; Keyboard can help user to call and store pay imformation and video information; In the time charging unsuccessfully, notify fault processing module, proceed to artificial treatment.
Preferably, this VISIBLE LIGHT EMISSION unit 102 can be integrated on the headlamp of described driving vehicle 10.
Preferably, this IC-card 103 with finance trade function can be integrated in the board units OBU upper 101 of described driving vehicle.
Preferably, described VISIBLE LIGHT EMISSION unit 102 is mobile phone.
Preferably, described VISIBLE LIGHT EMISSION unit 102 is photon client.
Preferably, between described board units OBU101 and described roadside unit RSU201, adopt active half-duplex operation.
Preferably, described photoelectricity receiving end is photodiode, and utilizes optical concentrator or optical antenna to increase the light intensity that arrives described photodiode surface; Described signal amplification circuit adopts the preposition structure for amplifying of transimpedance.
Preferably, this section Fare Collection System further comprises control unit, and this control unit is car lug.
The beneficial effect of the section Fare Collection System based on visible light communication provided by the invention is: the advantages such as the degree of stability of utilizing visible light communication to have is good, cost is low, good confidentiality, nocuity is little, frequency of light wave is high, bandwidth, frequency resource are abundant, solve the collecting vehicle information problem of having a headache the most in current intelligent transportation system ITS, can realize express highway section automatic charging.This system also can be used on automatic garage door, private savings parking lot etc. and locates, and realizes unmanned management.
Certainly, the above is only preferred embodiment of the present invention, and the present invention is not limited to above-described embodiment and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope of technological thought license of the present invention, the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.
Claims (10)
1. the section Fare Collection System based on visible light communication, comprises board units, roadside unit and expressway tol lcollection settlement center; Described board units is arranged on driving vehicle, and described roadside unit is arranged on traffic monitoring equipment; It is characterized in that, between described board units and described roadside unit, carry out radio communication by visible ray; Vehicle data transmission is given described expressway tol lcollection settlement center by described roadside unit, and the charge data calculating is returned to described roadside unit by described expressway tol lcollection settlement center.
2. the section Fare Collection System based on visible light communication according to claim 1, is characterized in that, described board units comprises VISIBLE LIGHT EMISSION unit; Described roadside unit comprises visible ray receiving element and picture control equipment; Described VISIBLE LIGHT EMISSION unit comprises single-chip microcomputer, the LED driving circuit being connected with described single-chip microcomputer, light emitting diode and the power module being connected with described LED driving circuit; Described visible ray receiving element comprises photoelectricity receiving end, the signal amplification circuit being connected with described photoelectricity receiving end and the signal demodulating circuit being connected with described signal amplification circuit; In the time that described roadside unit detects described driving vehicle by freeway toll station, the visible ray receiving element of described roadside unit receives the LED light signal of being launched by the VISIBLE LIGHT EMISSION unit of described board units; This LED light signal is loaded with the real-time information of this driving vehicle; The real-time information of this driving vehicle comprises the operating range on license plate number, speed of operation, vehicle and expressway charge section; The vehicle data transmission of the real-time information that comprises described driving vehicle is given described expressway tol lcollection settlement center by described roadside unit, described expressway tol lcollection settlement center is according to the charge data calculating, the IC-card with finance trade function or the account associated with this driving vehicle are withholdd, and this left fund after paying dues of deduction is write back to described IC-card or account, promptly complete charging process.
3. the section Fare Collection System based on visible light communication according to claim 2, it is characterized in that, described traffic monitoring equipment also comprises display module, Keysheet module and fault processing module further, in the time not charging, this display module shows current time information and real-time monitoring video, shows immediately toll amount or charge unsuccessfully prompting after having charged; Keyboard can help user to call and store pay imformation and video information; In the time charging unsuccessfully, notify fault processing module, proceed to artificial treatment.
4. the section Fare Collection System based on visible light communication according to claim 3, is characterized in that, this VISIBLE LIGHT EMISSION unit can be integrated on the headlamp of described driving vehicle.
5. the section Fare Collection System based on visible light communication according to claim 3, is characterized in that, the IC-card with finance trade function can be integrated on the board units of described driving vehicle.
6. the section Fare Collection System based on visible light communication according to claim 3, is characterized in that, described VISIBLE LIGHT EMISSION unit is mobile phone.
7. the section Fare Collection System based on visible light communication according to claim 3, is characterized in that, described VISIBLE LIGHT EMISSION unit is photon client.
8. according to the section Fare Collection System based on visible light communication described in claim 6 or 7, it is characterized in that, between described board units and described roadside unit, adopt active half-duplex operation.
9. the section Fare Collection System based on visible light communication according to claim 3, is characterized in that, described photoelectricity receiving end is photodiode, and utilizes optical concentrator or optical antenna to increase the light intensity that arrives described photodiode surface; Described signal amplification circuit adopts the preposition structure for amplifying of transimpedance.
10. according to the section Fare Collection System based on visible light communication described in claim 4 or 5, it is characterized in that, this section Fare Collection System further comprises control unit, and this control unit is car lug.
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| CN201410249141.7A CN104008577A (en) | 2014-06-09 | 2014-06-09 | Road section toll collection system based on visible light communication |
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| CN201410249141.7A CN104008577A (en) | 2014-06-09 | 2014-06-09 | Road section toll collection system based on visible light communication |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105809751A (en) * | 2014-12-30 | 2016-07-27 | 航天信息股份有限公司 | ETC system having infrared function |
| CN106788726A (en) * | 2016-12-19 | 2017-05-31 | 清华大学深圳研究生院 | A kind of electronic road pricing and method based on visible light communication |
| CN106991728A (en) * | 2016-11-30 | 2017-07-28 | 中冶(北京)交通科技发展有限公司 | LED visible light communication ETC system |
| CN108074290A (en) * | 2016-11-18 | 2018-05-25 | 上海海拉电子有限公司 | Automobile wireless payment onboard system and method for payment based on outside vehicle lighting device |
| CN106230505B (en) * | 2016-07-19 | 2018-11-13 | 中国科学技术大学 | Optimal input distribution acquiring method in a kind of intelligent transportation system based on visible light communication |
| CN114743284A (en) * | 2022-03-31 | 2022-07-12 | 深圳华创芯光科技有限公司 | High-energy-efficiency rapid ETC system and method based on visible light communication |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105809751A (en) * | 2014-12-30 | 2016-07-27 | 航天信息股份有限公司 | ETC system having infrared function |
| CN106230505B (en) * | 2016-07-19 | 2018-11-13 | 中国科学技术大学 | Optimal input distribution acquiring method in a kind of intelligent transportation system based on visible light communication |
| CN108074290A (en) * | 2016-11-18 | 2018-05-25 | 上海海拉电子有限公司 | Automobile wireless payment onboard system and method for payment based on outside vehicle lighting device |
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| CN106788726A (en) * | 2016-12-19 | 2017-05-31 | 清华大学深圳研究生院 | A kind of electronic road pricing and method based on visible light communication |
| CN114743284A (en) * | 2022-03-31 | 2022-07-12 | 深圳华创芯光科技有限公司 | High-energy-efficiency rapid ETC system and method based on visible light communication |
| CN114743284B (en) * | 2022-03-31 | 2024-03-08 | 深圳华创芯光科技有限公司 | High-energy-efficiency rapid ETC system and method based on visible light communication |
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