The method of safe and intelligent driving is realized based on RFID techniqueTechnical field
The invention belongs to the intelligent management technical field of vehicle safe driving, mainly relate to a kind of control and management method realizing safe and intelligent driving based on RFID wireless radio-frequency.
Background technology
Radio-frequency (RF) identification (RFID) is a kind of wireless communication technology, can read and write related data by radio signals identification specific objective, and without the need to setting up machinery or optical contact between recognition system and specific objective.The most important advantage of radio-frequency recognition system is contactless identification, and it can penetrate the rugged surroundings label reading that snow, mist, ice, coating, dust and dirt and bar code cannot use, and reading rate is exceedingly fast, in most cases less than 100 milliseconds.The literary sketch ability of active radio-frequency recognition system is also important advantage.Can be used for the interactive service such as flow tracking and maintenance tracking.
The safe driving of automobile, it is a topic of general concern today, due to socioeconomic development, sharply increasing of automobile quantity, the road traffic accident caused also is more and more, and traffic safety is not only a livelihood issues, especially a social concern and political issue, how effectively transport solution safety problem, this is the thing that supvr and scientific worker must pay attention to.
In the correlation technique of existing solution vehicle safe driving, worth the present invention carries out technology contrast, a kind of traffic safety auxiliary control method and system thereof, the patent No.: 201210302474.2.This invention proposes a kind of traffic safety auxiliary control method and Driving assistant system, can detect this car and the safe distance also timely voice message driver of front vehicles in real time, force to control vehicle operating time necessary; When overtaking other vehicles, calculating in real time the safe distance and point out driver whether can overtake other vehicles of overtaking other vehicles, forcing where necessary to control vehicle operating, greatly ensure that vehicle safety.Described Driving assistant system is amplified by signal gathering unit, signal and shaping unit, processor unit, actuator unit form; Wherein, system is communicated with body control system with anti-lock braking system, electronic steering column lock, electronic power assist steering system by vehicle bus.The signal gathering unit of its core completes, and comprises ultrasonic sensor, velocity radar, and steering wheel angle sensor and vehicle speed sensor composition.Namely be exactly by sound wave recognition technology and Techniques of Radar Recognition, single car vehicle realizes the judgement to nearby vehicle transport condition.
In vehicle travel process, correct process lane change of overtaking other vehicles is a very crucial driving technology.Technological invention related to this, one is overtaken other vehicles pre-alarming control system and control method, the patent No.: 201310005732.5, and this different technology mode is worth carrying out technology contrast with the present invention.
One is overtaken other vehicles pre-alarming control system and control method, this disclosure of the invention one is overtaken other vehicles pre-alarming control system and control method, comprise early warning controller of overtaking other vehicles, prior-warning device of overtaking other vehicles, the first fuzzy controller, the second fuzzy controller, distance measuring sensor, pole changer and ambient light sensor, first fuzzy controller connects distance measuring sensor and pole changer, second fuzzy controller connects the first fuzzy controller and ambient light sensor, and early warning controller of overtaking other vehicles connects the first fuzzy controller, the second fuzzy controller and prior-warning device of overtaking other vehicles.By the Fuzzy Calculation to car and right front car fore-and-aft distance, pole changer state and external environment condition light quantity, early warning controller of overtaking other vehicles can carry out the behavior such as sudden strain of a muscle long-and-short distant light, ring loudspeaker to front truck in a damaged condition effectively to be reminded front truck, avoids the generation of traffic hazard.
Can find out the two pieces invention technology Problems existing of described contrast accordingly, one is that equipment investment is high, cannot lay enforcement on all vehicles; Two is the configurations of single vehicle device, and other vehicles not installing this system cannot synchronously early warning and control, and can cause a traffic accident accident equally; Three is to form information data road network, drives the unmanned information data road network that cannot provide support automobile intelligent real under Future Internet environment.
Existing Intelligent collision prevention system of automobile is when the spacing between automobile and automobile is less than the safe distance of setting time, this system energy automatic alarm, and takes brake measure.At present, to measure between automobile safe distance method have 3 kinds: ultrasonic ranging, microwave radar range and laser ranging.Ultrasonic ranging utilizes hyperacoustic reflection characteristic to find range exactly.4OkHz ultrasound wave constantly launched by ultrasonic generator, and this ultrasound wave runs into fault thing back reflection and forms reflection wave, after ultrasonic receiver receives reflection wave signal, converts thereof into electric signal, thus measures the distance of target.Microwave radar range utilizes the electromagnetic wave reflected from target find target and measure its position.The principle of work of laser ranging is similar to microwave radar range, and concrete distance measuring method has continuous wave and pulsating wave two kinds.This technology be to solve between two cars accident occur before, the problem how avoided under critical collision state, due to the restriction of three kinds of ranging technologies described in it, and the front truck decayed because of measured signal or block because of measured signal cannot be solved, and the driving states parameter of more other vehicles of periphery associated mutually; This technology does not need to measure the driving states parameter of other vehicles of periphery not under the critical collision state of accident in other words.So; this just cannot realize the problem starting intelligent early-warning or the intelligent and safe license of overtaking other vehicles; also operating and controlling vehicle in advance cannot be realized; realize the extraordinary harmful influence haulage vehicle of effectively dodging or the degree that averts danger is higher; large-scale load-carrying vehicle; and the situation of exception or furious driving vehicle, traffic safety is controlled giving warning in advance and advance operation and the state avoided.This just existing various Vehicle security system a difficult problem for solution is not all provided.
Summary of the invention
The method realizing safe and intelligent driving based on RFID technique of the present invention, realizing the safe driving of vehicle, to overtake other vehicles early warning and based on the intelligent automaticization vehicle drive technology application direction under internet environment, all carried out the safe and intelligent technical design of novelty.
The present invention, compared to prior art and described contrast patent of invention, has following technology and application advantage:
1, adopt widely used RFID technique, cost is lower, applies more convenient, and the unification of applicable government is mandatory to be popularized.
2, conveniently configure on all vehicles, the common collaborative of early warning disposal can be formed, dangerous to overcoming the vehicle emergency circumstance, reduction accident odds more has reliability, this is compared with the vehicle safety technology of existing single-mode, has special meaning of overall importance to support vehicles safe driving.
3, set up car networking system and the support of sensing data chain is provided, more intelligent driving and unmanned will be realized to future, information acquisition and data processing support are provided, there is important basic technology and be worth.
It should be noted that, due to the wireless transmission signal of RFID technique, metal level cannot be passed, metal surface has very strong reflective to it, for solving the object utilizing RFID technique to drive to realize safe and intelligent, overcome after tall and big car body blocks, its car body metal cannot realize the problem of RFID radio signal transmission, the technology that the patent of invention that the present inventor can be utilized to develop " sets up the method for vehicle-mounted RFID information data relay transmission ", solves this problem.Its concrete technical scheme is see this patent of invention, and this claim and instructions no longer give technical characteristic statement.
The method realizing safe and intelligent driving based on RFID technique of the present invention, described implementation method comprises following technology implementation step:
S1, load discernible different frequency range RFID information launch terminal according to dissimilar vehicle configuration; Namely in several frequency range, secure data collection and the identification that type of vehicle just can realize this technological system requirement is distinguished exactly, and without the need to carrying out identification mark to each vehicle, thus the technology of increasing application difficulty.
S2, read the RFID displacement parameter of periphery other driving vehicles by receiving terminal.
S3, other vehicles RFID displacement parameter by obtaining, measure present position and the travel speed of periphery other driving vehicles.
S4, the present position passing through the periphery driving vehicle obtained and travel speed, display terminal shows the instant transport condition parameter of periphery associated vehicle.If it is determined that belong to non-correlation then kick out of display interface, or setting non-correlation can show but not point out early warning.How to judge correlativity and the non-correlation of vehicle, this described in Main Basis electronic communication map road conditions mark, comprise single-pass or bilateral, with or without intermediate isolating band, whether crossroad, the multiple variable such as roundabout, then in conjunction with dissimilar vehicle, provides a judgement of nearby vehicle whether correlativity after system intelligence comprehensive evaluating.Such as; although there is intermediate isolating band; but subtend is sent a car or stopped in emergency, band stops is the high harmful influence special transport vehicle of risk or large-scale load truck, so can give low-level display alarm on display terminal, and there is no need to send high level safety instruction.
S5, send corresponding early warning according to the instant transport condition parameter of described periphery associated vehicle and remind.Described transport condition parameter comprises the risk classifications of correlativity vehicle, instant Distance geometry travel speed, and marks with the grade aberration of this car Security test.
Of the present inventionly realize based on RFID technique the method that safe and intelligent drives, when being in alert status, driver starts vehicle acceleration or lane change is overtaken other vehicles, and display terminal sends corresponding faulty operation warning and reminds.Described alert status, comprise the grade aberration mark of security, and vehicle operating suggestion identifies and vehicle can not implementation and operation project label.
The method realizing safe and intelligent driving based on RFID technique of the present invention, described intelligent management comprises or further described periphery associated vehicle transport condition parameter and alert status is set order parameter, after access Vehicular intelligent networked control systems, realize starting vehicle cut-ins carrying out intelligentized control method; Comprise following Based Intelligent Control feature:
A1, intelligent control system, according to be associated the front truck speed of a motor vehicle and the spacing that read, display terminal carry out parametric variable and corresponding safe condition early warning display immediately.
A2, when time in a safe condition, intelligent control system permit artificial abrupt deceleration vehicle accelerate overtake other vehicles.
A3, when being in dangerous alert status, if artificial braking acceleration is overtaken other vehicles, then to give the alarm.
A4, when be in be on the rack full alert status time, if Acceleration of starting is overtaken other vehicles, or intelligent control system adapter car brakeing state, allow the artificial brake operating that accelerates lose efficacy.
When A5, current vehicle are security risk large type of vehicle, other associated vehicles of intelligent control system comprehensive reference periphery are assessed, and immediately send the suggestion prompting that can overtake other vehicles or the prompting maintained safe distance.
The method realizing safe and intelligent driving based on RFID technique of the present invention, be characterised in that further by after described periphery associated vehicle transport condition parameter and alert status setting order parameter access Vehicular intelligent control system, realize the Acceleration of starting to vehicle, the speed of a motor vehicle keeps, break-in Based Intelligent Control operation is carried out in road multi-service.
The method realizing safe and intelligent driving based on RFID technique of the present invention, discernible different frequency range RFID information launch terminal is loaded according to different car type configuration, according to vehicle size, vehicle use attribute is different with risk and hazard degree, correspondence arranges the safe distance that measures to keep clear that vehicle should take maybe should keep, by configuring corresponding RFID, the convenient security warning corresponding in reading terminals setting acquisition is reminded.
The method realizing safe and intelligent driving based on RFID technique of the present invention, described RFID information launch terminal, according to practical application needs, general selection active RFID, and transmitting boundary can reach the frequency range of tens up to a hundred meters, or labeling is unified desired location at vehicle, be convenient to the accurate distance that reading terminals is unified between mensuration two car; Or in described RFID information launch terminal, formerly writing the distance parameter of labeling position and vehicle front and back end, license reading terminals reads and counts this distance parameter, facilitates the accurate distance between mensuration two car.
The method realizing safe and intelligent driving based on RFID technique of the present invention, described receiving terminal is integrated with different frequency range read module, for reading the state parameter of the dissimilar vehicle of periphery and different travel direction, and carry out immediate status parameter display and instantaneous safety early warning by display terminal.
Of the present invention based on RFID technique realize safe and intelligent drive method, described display terminal or with other vehicle-mounted display terminals existing or intelligent network terminal, by function i ntegration and data importing, or third party's mobile client pattern realize integrate use.
Of the present inventionly realize based on RFID technique the method that safe and intelligent drives, when calculating vehicle there occurs within a certain period of time repeatedly overtake other vehicles or dangerous travelings of changing Lane records time, send reminding user and overtake other vehicles or the safety warning of changing Lane too frequent.
The method realizing safe and intelligent driving based on RFID technique of the present invention, the RFID information launch terminal of described loading, meet the prerequisite of application requirement in positioning precision under, or adopt mobile communication business SIM card technology mode, by the vehicle-mounted receiving terminal of mobile base station technology mode, read the displacement parameter of other driving vehicles of periphery, realize sending corresponding early warning according to the instant transport condition parameter of described periphery associated vehicle and remind and/or further Based Intelligent Control.
Accompanying drawing explanation
Fig. 1 the present invention is based on the business module pie graph that RFID technique realizes the method that safe and intelligent is driven.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are described.Should be appreciated that embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
The present embodiment introduces about utilizing vehicle-mounted RFID technique application system, how to be gathered and further Based Intelligent Control process by all edge coherence vehicle condition information datas, realize the object that safe and intelligent is driven.Implementation method described in it comprises following technology implementation step:
S1, load discernible different frequency range RFID information launch terminal according to dissimilar vehicle configuration.
S2, read the RFID displacement parameter of periphery other driving vehicles by receiving terminal.
S3, other vehicles RFID displacement parameter by obtaining, measure present position and the travel speed of periphery other driving vehicles.
S4, the present position passing through the periphery driving vehicle obtained and travel speed, display terminal shows the instant transport condition parameter of periphery associated vehicle.
S5, send corresponding early warning according to the instant transport condition parameter of described periphery associated vehicle and remind.
Described method, if further by described periphery associated vehicle transport condition and alert status parameter setting instruction parameter, after access Vehicular intelligent networked control systems, realizes the Acceleration of starting to vehicle, the speed of a motor vehicle keeps, break-in road carries out Based Intelligent Control operation.Described realization starts vehicle cut-ins and carries out intelligentized control method, comprises following Based Intelligent Control feature:
A1, intelligent control system, according to be associated the front truck speed of a motor vehicle and the spacing that read, display terminal carry out parametric variable and corresponding safe condition early warning display immediately.
A2, when time in a safe condition, intelligent control system permit artificial abrupt deceleration vehicle accelerate overtake other vehicles.
A3, when being in dangerous alert status, if artificial braking acceleration is overtaken other vehicles, then to give the alarm.
A4, when be in be on the rack full alert status time, if Acceleration of starting is overtaken other vehicles, or intelligent control system adapter car brakeing state, allow the artificial brake operating that accelerates lose efficacy.
When A5, current vehicle are security risk large type of vehicle, other associated vehicles of intelligent control system comprehensive reference periphery are assessed, and immediately send the suggestion prompting that can overtake other vehicles or the prompting maintained safe distance.
In sum, the method realizing safe and intelligent driving based on RFID technique of the present invention, discernible different frequency range RFID information launch terminal is loaded according to dissimilar vehicle configuration, read the RFID displacement parameter of other driving vehicles of periphery at receiving terminal after, measure present position and the travel speed of other driving vehicles of periphery, on display terminal, show the instant transport condition parameter of periphery associated vehicle accordingly, and synchronously send corresponding early warning prompting according to the instant transport condition parameter of described periphery associated vehicle; Further by described periphery associated vehicle transport condition parameter and alert status setting order parameter, after access Vehicular intelligent networked control systems, realize the Acceleration of starting to vehicle, the speed of a motor vehicle keeps, break-in road carries out Based Intelligent Control operation.The present invention is applied to this locality, being applicable to ubiquity and forcing to promote, particularly to realizing more intelligent driving and unmanned from now on, providing information acquisition and data processing support, have important basic technology and be worth.