CN105575157A - Vehicle accurate positioning assistant system based on RF identification technology and positioning method thereof - Google Patents
Vehicle accurate positioning assistant system based on RF identification technology and positioning method thereof Download PDFInfo
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- CN105575157A CN105575157A CN201610063632.1A CN201610063632A CN105575157A CN 105575157 A CN105575157 A CN 105575157A CN 201610063632 A CN201610063632 A CN 201610063632A CN 105575157 A CN105575157 A CN 105575157A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Traffic Control Systems (AREA)
- Navigation (AREA)
Abstract
The invention relates to a vehicle positioning assistant system and a method thereof, and particularly to a vehicle accurate positioning assistant system based on RF identification technology and a positioning method thereof. The vehicle accurate positioning assistant system comprises a first electronic label and a second electronic label which are arranged at the inlet and the outlet of a weak signal road. A plurality of electronic labels are equidistantly arranged between the inlet and the outlet. Different IDs and different geographical position information are stored in the electronic labels. The reading distances of the electronic labels can be adjusted. A reader which is connected with a terminal is mounted on the vehicle. According to the vehicle accurate positioning assistant system and the positioning method thereof, when the vehicle cannot receive a GPS signal, data transmission can be performed by means of a label network which is composed of the electronic labels which are distributed in the road, so that personnel in the vehicle can understand the driving condition of the vehicle in the road in time; furthermore the position information is transmitted to outside through a mobile data network so that outside personnel with a strong signal can master the driving condition of the vehicle in time; and furthermore through combination of the two positioning modes, accurate vehicle positioning is realized.
Description
Technical field
The present invention relates to a kind of vehicle location backup system and method, particularly relate to the accurate locating assist system of a kind of vehicle based on REID and method.
Background technology
Vehicle positioning technology is constantly developing, and the location of vehicle mostly relies on and is placed in positioning equipment in vehicle or software, utilizes GPS to position.The limitation of gps system is to need between localizing objects and orbiter to keep sighting distance.When vehicle is in the buildings such as tunnel or viaduct, wireless signal directly can not transmit with client device, and location cannot reach gratifying accuracy, even loses efficacy.
REID utilizes radiofrequency signal, carries out contactless bidirectional communication data exchange realize information transmission by alternating magnetic field or electromagnetic field couples, and passes through the object that transmitted information reaches identification and location.Existing RFID technique is widely used, and cost is low.For the contactless identification of radio-frequency recognition system, its signal can penetrate the rugged surroundings label readings such as snow, mist, ice, coating, dust and dirt, and reading rate is exceedingly fast, in most cases less than 100 milliseconds.This advantage makes RFID technique can apply to multiple occasion, and obtains desirable effect.
Summary of the invention
For these reasons, the invention provides the accurate locating assist system of a kind of vehicle based on REID, vehicle can be made when being similar to the gps signals such as tunnel and being weak, utilize REID still can precise positioning, overcome existing localization method not precisely, the difficulty that cannot search for of gps signal.
To achieve these goals, the technical solution adopted in the present invention is:
The accurate locating assist system of a kind of vehicle based on REID, comprise the first electronic tag of the porch being positioned at weak signal road and be positioned at second electronic tag in exit, some electronic tags are equidistantly distributed between first electronic tag and the second electronic tag, each electronic tag all stores different ID and geographical location information, the reading distance adjustable of electronic tag, the distance between adjacent electronic tag is greater than the reading distance set by electronic tag; Vehicle is provided with and connects the reader of terminal, reader is for reading the information that comes from electronic tag and decoding, and information is sent to terminal and obtain locating information and show, reader and terminal turn serial ports by USB and realize data transmission.
At the enterprising one-step optimization in the basis of such scheme:
Described terminal positions for obtaining gps data, and the signal that also can transmit according to reader positions the switching of picture.
The reader data received outwardly sends by mobile data network by described terminal.
Described electronic tag comprises the first microcontroller and the first antenna that are all connected with the first wireless radio frequency modules, and the first power supply is each module for power supply of electronic tag.
Described first wireless radio frequency modules and the first microcontroller all adopt NRF24LE1 high integration radio transmitting and receiving chip.
Described reader comprises the second microcontroller and the second antenna that are all connected with the second wireless radio frequency modules, and second source is to each module for power supply of reader.
Described second wireless radio frequency modules and the second microcontroller all adopt NRF24LE1 high integration radio transmitting and receiving chip.
Described first power acquisition CR2025 button cell.
Described USB turns serial ports and adopts PL2303USB to turn serial ports.
Described first antenna adopts PCB single ended antenna.
Described second antenna adopts the whip antenna of 3.5dB.
The present invention also provides a kind of based on the accurate locating assist system localization method of the vehicle in such scheme, when comprising the steps: that vehicle sails the more weak section of gps signal into, the reader be installed on car reads the first electronic tag placed porch, section and transmits, transfer to the terminal be installed on car after the relevant location information that decoding is recorded in the first electronic tag by analysis, former reception GPS station-keeping mode is switched to road display mode by terminal; When travelling in the road, reader constantly receives and comes from the positional information that in road, spaced electronic tag sends, with the driving trace of terminal demonstration vehicle, the positional information received constantly outwardly is sent by mobile data network by terminal simultaneously, makes the extraneous traveling-position also can grasping vehicle in time; When vehicle is close to the road way outlet that gps signal is more weak, reader receives the positional information coming from the second electronic tag transmission that road exit is placed, road display mode is switched to GPS station-keeping mode by terminal automatically, completes the conversion of two kinds of station-keeping modes inside and outside road.
The label network that the present invention can utilize radio frequency recognizing electronic label to be distributed in when vehicle cannot receive gps signal to form in road, to carry out data transmission, makes occupant can understand oneself travel situations in the road timely.Meanwhile, in conjunction with mobile data network, and by the transmission of positional information, make the external world having strong signal can recognize the travel conditions of vehicle timely, by the combination of inside and outside two kinds of locator meamss, realize the precise positioning of vehicle.
Below by way of the drawings and specific embodiments, the present invention is further elaborated.
accompanying drawing illustrates:
Fig. 1 is Organization Chart of the present invention;
Fig. 2 is reader and terminal catenation principle block diagram;
Fig. 3 (a) shows schematic diagram for vehicle enters link entry place terminal simulation;
Fig. 3 (b) shows schematic diagram for vehicle travels terminal simulation in the road;
Fig. 3 (c) is for vehicle is close to road exit terminal simulation display schematic diagram.
embodiment:
Shown in composition graphs 1 to Fig. 3, the accurate locating assist system of a kind of vehicle based on REID provided by the invention, comprise the first electronic tag 1 of the porch being positioned at weak signal road and be positioned at second electronic tag 2 in exit, some electronic tags are equidistantly distributed between first electronic tag 1 and the second electronic tag 2, each electronic tag all stores different ID and geographical location information, the reading distance adjustable of electronic tag; Vehicle is provided with and connects the reader 3 of terminal 4, information, for reading the information that comes from electronic tag and decoding, is sent to terminal 4 and obtains locating information and show by reader 3.
Electronic tag in such scheme comprises the first microcontroller and the first antenna that are all connected with the first wireless radio frequency modules, and the first power supply is each module for power supply of electronic tag.Wherein, the first wireless radio frequency modules and the first microcontroller all adopt NRF24LE1 high integration radio transmitting and receiving chip, embedded 2.4Ghz low-consumption wireless transmitting-receiving kernel NRF24L01 in NRF24LE1, and have high-performance 51 kernel, are 12 times of standard 51 speed; It is equivalent to the integrated of radio-frequency module and 51 single-chip microcomputers, so native system adopts it to replace radio-frequency module and micro controller module; And which provide abundant peripheral hardware: SPI, IIC, UART, 6 to 12 ADC, PWM and a super low-power consumption analog comparator for electric pressure system wake-up; Its built-in voltage regulator, under can being operated in 1.9V ~ 3.6V; Its peak transfer rate can reach 2Mbit/s, and can communicate between its with the NRF24L01 in pressure transducer electronic tag, the data transmission of more convenient native system.First power acquisition CR2025 button cell, its nominal voltage is 3V.Little owing to considering electronic tag volume, the first antenna adopts PCB single ended antenna.
Reader 3 in such scheme comprises the second microcontroller 6 and the second antenna 8 be connected with the second wireless radio frequency modules 5 respectively, and second source is to each module for power supply of reader 3.Wherein, the second wireless radio frequency modules 5 and the second microcontroller all adopt NRF24LE1 high integration radio transmitting and receiving chip.Second antenna then have employed the whip antenna of more common, that sensitivity is good 3.5dB.Reader 3 and terminal 4 turn serial ports 7 by USB and realize data transmission, USB turns serial ports 7 and adopts PL2303USB to turn serial ports, its internal USB function control device, USB transceiver, oscillator and the UART with whole modem control signal, only need external several electric capacity just can realize the conversion of usb signal and RS232 signal, can conveniently be embedded into various equipment, PL2303USB turns serial port module provides four pin VCC, GND, TXD, RXD, output voltage has 3.3V and 5V two kinds of patterns, support UART interface, can be connected with NRF24LE1 and it be powered, the effect of alternative second source here.
Electronic tag in the present embodiment adopts active electronic label, its decipherment distance is adjustable, just this feature can be utilized at the arranging electronic label of this road moderate distance, make the reader 3 in vehicle at the signal only receiving an electronic tag sometime, after analyzing further, just signal can be reached terminal demonstration.For making reader 3 only previous for working as at electronic tag read sometime, the horizontal range that two so often adjacent electronic tags are separated by is greater than the distance of reader 3 reading electronic labels.
Terminal 4 positions for obtaining gps data, and the signal that also can transmit according to reader 3 positions the switching of picture.
The method that the accurate locating assist system of vehicle in application such scheme carries out vehicle location is: when vehicle is at the road driving that gps signal is stronger, terminal 4 receives gps signal and positions; After vehicle sails the more weak link entry of gps signal into, reader 3 receives the signal that the first electronic tag 1 sends, after analyzing decoding, positional information is fed back to terminal 4, terminal 4 switches former GPS station-keeping mode is switched to road display mode, and according to the position at the electronic tag positional information simulative display vehicle place that each section receives in road, obtain the geographical location circumstances of road simultaneously, be convenient to driving personnel and better hold driving object; The positional information received outwardly is sent by mobile data network after receiving the geographic position coming from reader 3 analysis by terminal 4, the extraneous traveling place namely getting Current vehicle by reason position, this place timely; When vehicle is about to sail out of the more weak road of gps signal, during close to outlet, reader 3 receives the second electronic tag 2 and transmits, and turns serial ports 7 and transfers to terminal 4, make terminal 4 close road display mode and switch to gps signal receiving mode after the analysis of the second microcontroller 6 is decoded by USB.The present invention, by effective combination of two kinds of locator meamss inside and outside road, achieves the accurate locating effect of vehicle.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, other amendments that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in right of the present invention.
Claims (10)
1. the accurate locating assist system of the vehicle based on REID, it is characterized in that: comprise the first electronic tag of the porch being positioned at weak signal road and be positioned at second electronic tag in exit, some electronic tags are equidistantly distributed between first electronic tag and the second electronic tag, each electronic tag all stores different ID and geographical location information, the reading distance adjustable of electronic tag, the distance between adjacent electronic tag is greater than the reading distance set by electronic tag; Vehicle is provided with and connects the reader of terminal, reader is for reading the information that comes from electronic tag and decoding, and information is sent to terminal and obtain locating information and show, reader and terminal turn serial ports by USB and realize data transmission.
2. the accurate locating assist system of a kind of vehicle based on REID according to claim 1, it is characterized in that: described terminal can obtain gps data and position, the signal that also can transmit according to reader positions the switching of picture, and the reader data received outwardly is sent by mobile data network by terminal.
3. the accurate locating assist system of a kind of vehicle based on REID according to claim 1, it is characterized in that: described electronic tag comprises the first microcontroller and the first antenna that are all connected with the first wireless radio frequency modules, the first power supply is each module for power supply of electronic tag.
4. the accurate locating assist system of a kind of vehicle based on REID according to claim 3, is characterized in that: described first wireless radio frequency modules and the first microcontroller all adopt NRF24LE1 high integration radio transmitting and receiving chip.
5. the accurate locating assist system of a kind of vehicle based on REID according to claim 3, is characterized in that: described first power acquisition CR2025 button cell, and the first antenna adopts PCB single ended antenna.
6. the accurate locating assist system of a kind of vehicle based on REID according to claim 1, it is characterized in that: described reader comprises the second microcontroller and the second antenna that are all connected with the second wireless radio frequency modules, and second source is to each module for power supply of reader.
7. the accurate locating assist system of a kind of vehicle based on REID according to claim 6, is characterized in that: described second wireless radio frequency modules and the second microcontroller all adopt NRF24LE1 high integration radio transmitting and receiving chip.
8. the accurate locating assist system of a kind of vehicle based on REID according to claim 6, is characterized in that: described second antenna adopts the whip antenna of 3.5dB.
9. the accurate locating assist system of a kind of vehicle based on REID according to claim 1, is characterized in that: described USB turns serial ports and adopts PL2303USB to turn serial ports.
10. the localization method based on the such as accurate locating assist system of any vehicle of claim 1 to 9, it is characterized in that: when comprising the steps: that vehicle sails the more weak section of gps signal into, the reader be installed on car reads the first electronic tag placed porch, section and transmits, transfer to the terminal be installed on car after the relevant location information that decoding is recorded in the first electronic tag by analysis, former reception GPS station-keeping mode is switched to road display mode by terminal; When travelling in the road, reader constantly receives and comes from the positional information that in road, spaced electronic tag sends, with the driving trace of terminal demonstration vehicle, the positional information received constantly outwardly is sent by mobile data network by terminal simultaneously, makes the extraneous traveling-position also can grasping vehicle in time; When vehicle is close to the road way outlet that gps signal is more weak, reader receives the positional information coming from the second electronic tag transmission that road exit is placed, road display mode is switched to GPS station-keeping mode by terminal automatically, completes the conversion of two kinds of station-keeping modes inside and outside road.
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| CN201610063632.1A CN105575157A (en) | 2016-01-29 | 2016-01-29 | Vehicle accurate positioning assistant system based on RF identification technology and positioning method thereof |
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| CN201610063632.1A CN105575157A (en) | 2016-01-29 | 2016-01-29 | Vehicle accurate positioning assistant system based on RF identification technology and positioning method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441286A (en) * | 2016-06-27 | 2017-02-22 | 上海大学 | Unmanned aerial vehicle tunnel inspection system based on BIM technology |
| CN107784334A (en) * | 2016-08-27 | 2018-03-09 | 王树敏 | Rail traffic vehicles Precise Position System based on RFID technique |
| CN107861144A (en) * | 2017-10-31 | 2018-03-30 | 平潭诚信智创科技有限公司 | A kind of intelligent tunnel air navigation aid based on RFID |
| CN107885201A (en) * | 2017-10-31 | 2018-04-06 | 平潭诚信智创科技有限公司 | A kind of intelligent tunnel guider and navigation system based on RFID |
| CN107907897A (en) * | 2017-10-31 | 2018-04-13 | 平潭诚信智创科技有限公司 | A kind of intelligent tunnel guider and navigation system based on LIFI |
| CN108415453A (en) * | 2018-01-24 | 2018-08-17 | 上海大学 | Unmanned plane tunnel method for inspecting based on BIM technology |
| CN108827330A (en) * | 2018-04-28 | 2018-11-16 | 重庆交通大学 | A kind of system and method for realizing lane change guidance based on Radio Frequency Identification Technology |
| CN108957397A (en) * | 2017-07-06 | 2018-12-07 | 深圳市朗驰欣创科技股份有限公司 | The localization method and device of crusing robot |
| CN109816971A (en) * | 2019-03-11 | 2019-05-28 | 长安大学 | Hazardous materials transportation vehicle prevention tracking system and method based on multisource data fusion |
| CN110308469A (en) * | 2018-03-20 | 2019-10-08 | 郑州宇通客车股份有限公司 | A kind of high-accuracy position system for vehicle, vehicle |
| CN112904389A (en) * | 2020-12-29 | 2021-06-04 | 上海富欣智能交通控制有限公司 | Rail vehicle positioning system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107861144A (en) * | 2017-10-31 | 2018-03-30 | 平潭诚信智创科技有限公司 | A kind of intelligent tunnel air navigation aid based on RFID |
| CN107885201A (en) * | 2017-10-31 | 2018-04-06 | 平潭诚信智创科技有限公司 | A kind of intelligent tunnel guider and navigation system based on RFID |
| CN107907897A (en) * | 2017-10-31 | 2018-04-13 | 平潭诚信智创科技有限公司 | A kind of intelligent tunnel guider and navigation system based on LIFI |
| CN107861144B (en) * | 2017-10-31 | 2021-08-13 | 平潭诚信智创科技有限公司 | Intelligent tunnel navigation method based on RFID |
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| CN108415453A (en) * | 2018-01-24 | 2018-08-17 | 上海大学 | Unmanned plane tunnel method for inspecting based on BIM technology |
| CN110308469A (en) * | 2018-03-20 | 2019-10-08 | 郑州宇通客车股份有限公司 | A kind of high-accuracy position system for vehicle, vehicle |
| CN108827330A (en) * | 2018-04-28 | 2018-11-16 | 重庆交通大学 | A kind of system and method for realizing lane change guidance based on Radio Frequency Identification Technology |
| CN109816971A (en) * | 2019-03-11 | 2019-05-28 | 长安大学 | Hazardous materials transportation vehicle prevention tracking system and method based on multisource data fusion |
| CN109816971B (en) * | 2019-03-11 | 2021-07-23 | 长安大学 | Dangerous goods transport vehicle prevention tracking system and method based on multi-source data fusion |
| CN112904389A (en) * | 2020-12-29 | 2021-06-04 | 上海富欣智能交通控制有限公司 | Rail vehicle positioning system and method |
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Application publication date: 20160511 |
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