CN102968824B - Vehicle management system based on optical communication - Google Patents

Vehicle management system based on optical communication Download PDF

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Publication number
CN102968824B
CN102968824B CN201110255696.9A CN201110255696A CN102968824B CN 102968824 B CN102968824 B CN 102968824B CN 201110255696 A CN201110255696 A CN 201110255696A CN 102968824 B CN102968824 B CN 102968824B
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module
vehicle
microprocessor
optical communication
vehicle management
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CN102968824A (en
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刘若鹏
尹武
李蔚
叶静
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Jiangsu good health new material Co.,Ltd.
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Kuang Chi Institute of Advanced Technology
Kuang Chi Innovative Technology Ltd
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Abstract

The invention relates to a vehicle management system based on optical communication. The vehicle management system based on the optical communication comprises a path information emitting module, a vehicle-mounted module and an optical signal receiving module, wherein the path information emitting module is used for emitting signals with path identification information, the vehicle-mounted module comprises a signal receiving unit and an optical signal emitting unit, the signal receiving unit is used for receiving the path identification information and transmitting the path identification information to the optical signal emitting unit, the optical signal emitting unit is used for emitting vehicle identification information and the path identification information, and the optical signal receiving module is used for reading the vehicle identification information and the path identification information. By means of the cooperation of the modules, the vehicle management system based on the optical communication solves the problem that an existing toll collection system cannot recognize a plurality of different paths, improves traffic efficiency of road network, is free of electromagnetic disturbance, and reduces damage of radiofrequency radiation to the human body.

Description

Based on the vehicle management system of optical communication
Technical field
The present invention relates to a kind of vehicle management system, particularly relate to a kind of vehicle management system based on optical communication.
Background technology
Networked fee collection is the megatrend of current each department road network charge, and current most area has implemented the road network Fare Collection System based on IC-card all.Due to IC-card Fare Collection System charge inconvenience, thus far Distance RFID automatic fare collection system is arisen at the historic moment.RFID automatic fare collection system is cooperatively interacted by rfid interrogator and rfid card to realize, and the radiofrequency signal of being returned by the coupling of read write line reception rfid card at that time carries out identification to communicate.The frequency that existing described road network Fare Collection System uses is usually identical with the frequency that the means of communication such as mobile phone uses, and thus, sometimes also can disturb with existing mobile phone signal.Its communication distance is subject to the restriction of various condition usually, often adopt the way increasing antenna transmission power and gain, this just requires that the installation site of vehicle-mounted rfid card is equipped with good coupling with the installation position of fixing reading and writing device antenna, and this just makes the use of far Distance RFID system there is very large limitation.When there being multiple track, not only need multiple rfid interrogator is installed, and the phenomenon such as be difficult to avoid monkey chatter and misread.In addition, it can not identify many different paths, and electromagnetic radiation works the mischief to human body.
Summary of the invention
Technical matters to be solved by this invention is, for above-mentioned the deficiencies in the prior art, a kind of vehicle management system based on optical communication is proposed, which solve the problem that existing system can not identify many different paths, improve the traffic efficiency of road network, without electromagnetic interference (EMI), reduce radio-frequency radiation to the harm of human body.
The technical solution adopted for the present invention to solve the technical problems is, a kind of vehicle management system based on optical communication is proposed, it comprises routing information transmitter module, vehicle module and optical signal receiving module, and described routing information transmitter module is for launching the signal with ID of trace route path information; Described vehicle module comprises signal receiving unit and optical signal launch unit, described signal receiving unit is for receiving described ID of trace route path information and sending this ID of trace route path information to described optical signal launch unit, and described optical signal launch unit is for launching vehicle identity identification information and described ID of trace route path information; Described optical signal receiving module is for reading described testing vehicle register identifying information and described ID of trace route path information.
Further, described routing information transmitter module launches the signal with ID of trace route path information is light signal or radiofrequency signal.
Further, described routing information transmitter module is provided with radio-frequency antenna, described radio-frequency antenna is provided with antenna body and is positioned at the metamaterial panel of described antenna body side, described metamaterial panel is provided with some layers, every one deck by sheet substrate and be arranged on described suprabasil multiple man-made microstructure and form.
Further, the effective dielectric constant of described metamaterial panel and equivalent permeability are diminished to surrounding gradually by the centre of metamaterial panel.
Further, the size of described man-made microstructure diminishes towards periphery gradually from the center of every one deck, and the man-made microstructure size at same radius place is identical.
Further, described man-made microstructure is I-shaped.
Further, described routing information transmitter module comprises trackside microprocessor, radio frequency unit, power amplifier, remote control unit and described radio-frequency antenna, described trackside microprocessor is electrically connected with described radio frequency unit, power amplifier and remote control unit respectively, and described radio-frequency antenna is electrically connected with described power amplifier module.
Further, described remote control unit is wireless network communication module, and it is for the duty being arranged the ID of trace route path information of routing information transmitter module, power parameter by computer remote and detect routing information transmitter module.
Further, described signal receiving unit is provided with first microprocessor, radio frequency receiver and receiving antenna, described first microprocessor is electrically connected with described radio frequency receiver and described optical signal launch unit, and described radio frequency receiver is electrically connected with described receiving antenna; The second microprocessor that described optical signal launch unit is provided with light source and is electrically connected with described light source; Described first microprocessor is electrically connected with described second microprocessor, and for sending ID of trace route path information to described second microprocessor.
Further, described light source is LED car lamp.
In sum, the present invention is based on the cooperation of vehicle management system by described modules of optical communication, just solve the problem that can not identify many different paths in existing Fare Collection System, improve the traffic efficiency of road network, without electromagnetic interference (EMI), reduce radio-frequency radiation to the harm of human body.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the vehicle management system that the present invention is based on optical communication.
Fig. 2 is the theory diagram of routing information transmitter module of the present invention shown in Fig. 1.
Fig. 3 is the structural representation of drive test antenna of the present invention shown in Fig. 2.
Fig. 4 is the structural representation of metamaterial panel of the present invention shown in Fig. 3.
Fig. 5 is the theory diagram of vehicle module of the present invention shown in Fig. 1.
Fig. 6 is the theory diagram of optical signal receiving module of the present invention shown in Fig. 1.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention will be further described:
Refer to Fig. 1 and Fig. 2, the vehicle management system that the present invention is based on optical communication comprises routing information transmitter module 1, vehicle module 2 and optical signal receiving module 3.Described routing information transmitter module 1 is for launching the radiofrequency signal with ID of trace route path information, it comprises trackside microprocessor 11, radio frequency unit 12, power amplifier 13, remote control unit 14 and radio-frequency antenna 15, described trackside microprocessor 11 is electrically connected with described radio frequency unit 12, power amplifier 13 and remote control unit 14 respectively, and described radio-frequency antenna 15 is electrically connected with described power amplifier 13 module.Described remote control unit 14 is wireless network communication module, and it is for the duty being arranged the ID of trace route path information of routing information transmitter module 1, power parameter by computer remote and detect routing information transmitter module 1.
Refer to Fig. 2 to Fig. 4, described radio-frequency antenna 15 is provided with antenna body 151 and is positioned at the metamaterial panel 152 of side, described antenna body 151 front end, described antenna body 151 is provided with oscillator 1511, and described metamaterial panel 152 is positioned at the side of described oscillator 1511.Described metamaterial panel 152 is provided with some layers, and every one deck is made up of with the multiple man-made microstructure 154 be arranged in described substrate 153 substrate 153 of sheet.From Meta Materials technology, when base material is selected, by adjusting the pattern of man-made microstructure 154, size and the space distribution on base material thereof, effective dielectric constant everywhere and equivalent permeability can be adjusted on Meta Materials, and then changes Meta Materials equivalent refractive index everywhere.When man-made microstructure 154 adopts identical geometric configuration, the size of somewhere man-made microstructure 154 is larger, then the effective dielectric constant at this place and equivalent permeability larger, refractive index is also larger.
In the present embodiment, the pattern of the man-made microstructure 154 adopted is I-shaped, in substrate 153, the size of I-shaped man-made microstructure 154 diminishes towards periphery gradually from center, in substrate 153 center, the size of I-shaped man-made microstructure 154 is maximum, and the I-shaped man-made microstructure 154 at distance center same radius place is measure-alike, therefore the effective dielectric constant of substrate 153 and equivalent permeability are diminished to surrounding gradually by centre, effective dielectric constant and the equivalent permeability of centre are maximum, thus the refractive index of substrate 153 diminishes from centre gradually to surrounding, the refractive index of center section is maximum.By adding described metamaterial panel 152 in side, antenna body 151 front end, thus the most of electromagnetic wave produced by radiating doublet reflects via metamaterial panel 152 and converges to same direction, thus greatly reduce the width of radiated wave lobe, the gain of radio-frequency antenna 15 is significantly improved, greatly strengthen the signal intensity of radio-frequency antenna 15, thus can be applicable to various rugged environment.
Refer to Fig. 5, described vehicle module 2 comprises signal receiving unit 21 and optical signal launch unit 22, described signal receiving unit 21 is for receiving described ID of trace route path information and sending this ID of trace route path information to described optical signal launch unit 22, it is provided with first microprocessor 211, radio frequency receiver 212, receiving antenna 213 and carrier detecting circuit unit 214, described first microprocessor 211 is electrically connected with described radio frequency receiver 212 and carrier detecting circuit unit 214, and described radio frequency receiver 212 is electrically connected with described receiving antenna 213.Described carrier detecting circuit unit 214 is used for triggering described first microprocessor 211 and works, when after wake-up signal certain frequency being detected, export a trigger pip immediately to first microprocessor 211, make first microprocessor 211 enter normal operating conditions from dormant state, be namely waken up.
Described optical signal launch unit 22 is for launching vehicle identity identification information and described ID of trace route path information, and described testing vehicle register identifying information comprises owner information, license plate number information and vehicle information.The second microprocessor 222 that described optical signal launch unit 22 is provided with light source 221 and is electrically connected with described light source 221.Described first microprocessor 211 connects with described second microprocessor 222 circuit, and for ID of trace route path information being sent to described second microprocessor 222.In the present embodiment, described radio frequency receiver 212 is nRF905 chips, nRF905 chip is made up of fully-integrated frequency synthesizer, the band receiver of demodulation, power amplifier, crystal oscillator and modulator, do not need additional wave filter, just can obtain stable frequency of operation, himself possess Shock Burst mode of operation, automatically can produce lead code and CRC (CRC), and use SPI interface and micro-controller communications, configure very convenient.Described light source 221 and described second microprocessor 222 are the microprocessor in LED car lamp and automobile computer respectively, thus, the present invention can make full use of existing automobile hardware resource, enter the software need revised in existing automobile computer, just corresponding function is realized, thus it is cost-saving, easy to utilize.
Described optical signal receiving module 3 is for reading described testing vehicle register identifying information and described ID of trace route path information, and it is arranged on porch and the exit of road network.The signal processing unit 32 that described optical signal receiving module 3 comprises photodetector 31 and is electrically connected with described photodetector 31, described signal processing unit 32 is provided with the wave filter 321 and despread unit 322 that are electrically connected to each other, and described wave filter 321 is electrically connected with described photodetector 31.The light signal that described photodetector 31 receiving optical signals transmitter unit launches also is converted to corresponding electric signal, sends into expand and separate unit 322 after the filtering process of then device 321 after filtering.Process through despread unit 322, if the address code of signal and local address code match, then the information transmitted can correctly recover, otherwise just abandons.Described despread unit is connected with computing machine 4, described computing machine 4 is connected with data center 5, therefore, described testing vehicle register identifying information and described ID of trace route path information are after described optical signal receiving module 3 reads, finally can be sent to described data center 5, thus be convenient to the monitoring to vehicle, charge and management.
Principle of work of the present invention is: when the vehicle with vehicle module 2 enters road network porch, and the optical signal launch unit 22 of vehicle module 2 launches traveling path inlet information to optical signal receiving module 3.Then vehicle module 2 moves in road network with vehicle.When the local time through being provided with described routing information transmitter module 1 driven by car, described routing information transmitter module 1 sends wake-up signal to the carrier detecting circuit unit 214 of described vehicle module 2 by radio-frequency antenna 15, then microprocessor wakes up by carrier detecting circuit unit 214.Then, described routing information transmitter module 1 sends radiofrequency signal with ID of trace route path information by radio-frequency antenna 15 with certain frequency more continuously, after vehicle module 2 detects above-mentioned ID of trace route path signal, receive this ID of trace route path information by signal receiving unit 21, order is kept in the storage unit of first microprocessor 211 of signal receiving unit 21.
When vehicle travels to road network exit, testing vehicle register identifying information and described ID of trace route path information transmitting are given described optical signal receiving module 3 by described optical signal launch unit 22, and described optical signal receiving module 3 can obtain the precise path that this vehicle travels.Read successfully in information, the access information in described vehicle module 2 and ID of trace route path information are removed automatically, and vehicle module 2 is set to the park mode of power saving.Routing information transmitter module 1 of the present invention can adopt wireless link to communicate, and it has the advantages that communication distance is far away, cut-through thing ability is strong, and can adopt public frequency band, without the need to applying for the radio usage license, easy to utilize.
In sum, the present invention is based on the cooperation of vehicle management system by described modules of optical communication, just solve the problem that can not identify many different paths in existing Fare Collection System, improve the traffic efficiency of road network, without electromagnetic interference (EMI), reduce radio-frequency radiation to the harm of human body.
By reference to the accompanying drawings preferred embodiment of the present invention is described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect; also can make a lot of form; such as; the signal that described routing information transmitter module 3 is launched is light signal etc., and these all belong within protection scope of the present invention.

Claims (9)

1. based on a vehicle management system for optical communication, it is characterized in that: comprise routing information transmitter module, vehicle module and optical signal receiving module, described routing information transmitter module is for launching the signal with ID of trace route path information; Described vehicle module comprises signal receiving unit and optical signal launch unit, described signal receiving unit is for receiving described ID of trace route path information and sending this ID of trace route path information to described optical signal launch unit, and described optical signal launch unit is for launching vehicle identity identification information and described ID of trace route path information; Described optical signal receiving module is for reading described testing vehicle register identifying information and described ID of trace route path information;
Described routing information transmitter module is provided with radio-frequency antenna, described radio-frequency antenna is provided with antenna body and is positioned at the metamaterial panel of described antenna body side, described metamaterial panel is provided with some layers, every one deck by sheet substrate and be arranged on described suprabasil multiple man-made microstructure and form.
2. the vehicle management system based on optical communication according to claim 1, is characterized in that: the signal that described routing information transmitter module is launched with ID of trace route path information is light signal or radiofrequency signal.
3. the vehicle management system based on optical communication according to claim 1, is characterized in that: the effective dielectric constant of described metamaterial panel and equivalent permeability are diminished to surrounding gradually by the centre of metamaterial panel.
4. the vehicle management system based on optical communication according to claim 3, is characterized in that: the size of described man-made microstructure diminishes towards periphery gradually from the center of every one deck, and the man-made microstructure size at same radius place is identical.
5. the vehicle management system based on optical communication according to claim 4, is characterized in that: described man-made microstructure is I-shaped.
6. the vehicle management system based on optical communication according to claim 1, it is characterized in that: described routing information transmitter module comprises trackside microprocessor, radio frequency unit, power amplifier, remote control unit and described radio-frequency antenna, described trackside microprocessor is electrically connected with described radio frequency unit, power amplifier and remote control unit respectively, and described radio-frequency antenna is electrically connected with described power amplifier module.
7. the vehicle management system based on optical communication according to claim 6, it is characterized in that: described remote control unit is wireless network communication module, it is for the duty being arranged the ID of trace route path information of routing information transmitter module, power parameter by computer remote and detect routing information transmitter module.
8. the vehicle management system based on optical communication according to claim 1 and 2, it is characterized in that: described signal receiving unit is provided with first microprocessor, radio frequency receiver and receiving antenna, described first microprocessor is electrically connected with described radio frequency receiver, and described radio frequency receiver is electrically connected with described receiving antenna; The second microprocessor that described optical signal launch unit is provided with light source and is electrically connected with described light source; Described first microprocessor is electrically connected with described second microprocessor, and for sending ID of trace route path information to described second microprocessor.
9. the vehicle management system based on optical communication according to claim 8, is characterized in that: described light source is LED car lamp.
CN201110255696.9A 2011-08-31 2011-08-31 Vehicle management system based on optical communication Active CN102968824B (en)

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CN104100844A (en) * 2013-04-11 2014-10-15 广州杰赛科技股份有限公司 Communication portable flashlight
CN104104437A (en) * 2013-04-11 2014-10-15 广州杰赛科技股份有限公司 Visible light-based communication method
CN103634402A (en) * 2013-12-09 2014-03-12 赵生捷 Intelligent vehicular safeguard system
CN103714601A (en) * 2013-12-18 2014-04-09 清华大学 Identity recognition system with visible light communication technology
CN104966038A (en) * 2015-07-25 2015-10-07 河北中秦电子科技有限公司 Photoelectric identity recognition system
CN107123168A (en) * 2017-05-18 2017-09-01 北京聚利科技股份有限公司 Path identification method and system, trackside identification point RSU and path recording unit
CN109067458B (en) * 2018-08-01 2020-09-29 西安理工大学 Vehicle lamp communication system for vehicle identity recognition and fee payment
CN110012448A (en) * 2018-12-18 2019-07-12 中国银联股份有限公司 Vehicle end communication means based on light

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Effective date of registration: 20150720

Address after: 518000 Guangdong city of Shenzhen province Futian District Shennan Road and CaiTian Road intersection East Xintiandi Plaza C block 2007-27

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Address before: 518000 Nanshan District City, Guangdong province high tech Zone in the middle of a high tech building, No. 9 software building

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Patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd.

Effective date of registration: 20150720

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Address before: 518000 Nanshan District City, Guangdong province high tech Zone in the middle of a high tech building, No. 9 software building

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