CN1811846A - Multifunctional on-board-equipment (OBE) for intelligent transport systems (ITS) - Google Patents
Multifunctional on-board-equipment (OBE) for intelligent transport systems (ITS) Download PDFInfo
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- CN1811846A CN1811846A CNA2006100011529A CN200610001152A CN1811846A CN 1811846 A CN1811846 A CN 1811846A CN A2006100011529 A CNA2006100011529 A CN A2006100011529A CN 200610001152 A CN200610001152 A CN 200610001152A CN 1811846 A CN1811846 A CN 1811846A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/14—Payment architectures specially adapted for billing systems
- G06Q20/145—Payments according to the detected use or quantity
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/02—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/02—Registering or indicating driving, working, idle, or waiting time only
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/09623—Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
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- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Finance (AREA)
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- Radar, Positioning & Navigation (AREA)
- Accounting & Taxation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Economics (AREA)
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- General Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Development Economics (AREA)
- Emergency Management (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
A multifunctional on-board equipment (OBE) for an automobile is provided. The OBE includes a GPS terminal to commonly use a case, an electric power and an indicator, and provides a voice service through an internal speaker to notice a position of the automobile, to provide an electric toll collection function, and traffic information by interacting a CPU function of a GPS terminal and a CPU function of the OBE. Also, the OBE includes a MP3 player and a music selection switches for reproducing and outputting music through an internal speaker or an external speaker connected through an audio output terminal while a user drives the automobile. The OBE includes a microprocessor core with predetermined interface software specially designed for the present invention in L1, L2 and L7 layers to reduce a size and a manufacturing cost.
Description
Technical field
The present invention relates to be used for the car-mounted device (OBE) of automobile, relate in particular to and be used for miniature multi-function car-mounted device automobile, receive various services by active Dedicated Short Range Communications, (DSRC) network.The OBE that is used for vehicle according to the present invention is the enhancing to the OBE that introduces in the 10-2005-003710 Korean application, and this Korean application is introduced into the application.
Background technology
Telematics is a kind of technology of introducing in recent years, and it is the combination of tele-com and information science.The telecommunication treatment technology provides various services for the driver and the passenger of automobile, for example transport information, emergency assistance services, remote automobile diagnosis and Internet service.That is to say that the telecommunication treatment technology provides the service of embodiment mobile office (mobile office).
As the basic device of telecommunication treatment technology, use the navigation terminal of GPS (GPS) to be widely used on the automobile.But this GPS navigation terminal can not provide Real-time Traffic Information.
The communication plan that is used for intelligent transportation system (ITS) is divided into wireline communication network, wireless wide-area communication network, roadside communication network and workshop interactive communication network.Usually, wireline communication network and wireless wide-area communication network are set to public communication network.On the contrary, roadside communication network and workshop interactive communication network are the dedicated communications networks that is used for ITS.Dedicated Short Range Communications, network (DSRC) is a kind of in the communication network of roadside.When the automobile with OBE enters the communication range of wayside unit (RSE), intercom mutually by the DSRC network between the OBE on being installed in the other RSE of road and being installed in automobile.The OBE of automobile communicates by DSRC network and RSE, receives Real-time Traffic Information, and pays toll automatically based on electronic charging (ETC).
But, be used for the function limitation of traditional OBE in the various services of reception/emission of DSRC.In addition, owing to assembled common storer among traditional OBE, has larger volume so be used for the ordinary terminal of DSRC.And traditional OBE costs an arm and a leg.
Summary of the invention
Therefore, the present invention relates to the multi-functional OBE of a kind of ITS of being used for, it has solved the one or more problems that cause owing to the restriction of prior art and defective in fact.
An object of the present invention is to provide a kind of miniature multi-function OBE that is used for active DSRC network with GPS receiver, so that OBE function and GPS function can be provided simultaneously, locating information for example be provided, comprise information of vehicles, transport information, accounting facility information, MP3 playing function and the navigation feature of present speed or type of vehicle.
Part in other advantage, purpose and the feature of the present invention will be described hereinafter, another part, and those of ordinary skills hereinafter will be readily appreciated that or can release from the practice of the present invention by research.Structure by illustrating in instructions of the present invention, claims and accompanying drawing is appreciated that objects and advantages of the present invention.
For realizing these purposes and advantage and effect of the present invention, as described herein, the invention provides a kind of car-mounted device that has GPS receiver that is used for intelligent transportation system, described intelligent transportation system disposes car-mounted device and wayside unit, described wayside unit is installed in roadside, tollbooth or parking lot, and communicate by emission/reception wireless signal or infrared signal and the described car-mounted device that is installed on automobile, described car-mounted device can comprise: the car-mounted device box body is used to hold the internal circuit of described car-mounted device; GPS receiver receives navigation data so that the current location of described automobile to be provided by global positioning system antenna from GPS satellite; The keyboard input block is used to import predetermined instruction so that described car-mounted device is carried out object run; Card reader is carried out automatic accounting routine according to electronic charging, to be stored in fund information payment toll and the parking fee in the smart card by utilization; Serial communication unit is used for downloading predetermined data with the renewal geography information from external unit, thereby navigation Service is provided; Loudspeaker is used to export voice; Miniature amplification monolithic integrated microwave circuit is used for data-modulated is become wireless signal, and by the car-mounted device antenna described wireless signal is sent to described wayside unit; And integrated microprocessor ASIC, be used for storing predetermined software to carry out dedicated short-range communication, the storage geographic information database is to provide navigation Service, storage Real-time Traffic Information database is to provide Real-time Traffic Information, and utilization is transmitted locating information of coming and the data of coming from described miniature amplification monolithic integrated microwave circuit transmission from described GPS receiver, provide transport information by described loudspeaker with voice mode, and provide intended function according to the input of described keyboard input block, wherein, the major function element of global positioning system terminal comprises: antenna, and coordinate identification CPU, POI is installed with shared described car-mounted device box body in described car-mounted device box body, power supply and indicator provide voice service to inform the position of described automobile by internal loudspeaker, the electronic charging function is provided, and provide transport information alternately between the cpu function of cpu function by described global positioning system terminal and described car-mounted device.
Be appreciated that above-mentioned general description of the present invention and following detailed description are exemplary and indicative explanation, purpose provides the further explanation to as claimed in claim invention.
Description of drawings
Be used for to the invention provides further understanding, thereby and the respective drawings that is introduced into a part that constitutes the application show embodiment of the present invention, and and instructions explain principle of the present invention together.In the accompanying drawings:
Figure 1A and 1B are front elevation and the side views that the system of service is provided for automobile miniature multi-function car-mounted device (OBE) according to an embodiment of the invention;
Fig. 2 is the block scheme according to the miniature multi-function OBE of one embodiment of the invention;
Fig. 3 A shown among Fig. 2 according to the microprocessor in first embodiment of the present invention;
Fig. 3 B has shown the microprocessor according to second embodiment of the invention;
Fig. 3 C has shown the microprocessor according to third embodiment of the invention;
Fig. 3 D is the structural drawing according to the software of miniature multi-function OBE of the present invention;
Fig. 4 is the process flow diagram of the general operation of miniature multi-function OBE according to embodiments of the present invention;
Fig. 5 is the process flow diagram of the updating operation of the navigation data of miniature multi-function OBE according to embodiments of the present invention;
Fig. 6 is the process flow diagram that receives operation according to the Real-time Traffic Information of the miniature multi-function OBE of embodiment of the present invention;
Fig. 7 is the process flow diagram of the electronic charging operation of miniature multi-function OBE according to embodiments of the present invention;
Fig. 8 is the process flow diagram that the operation of urgent rescue services is provided of miniature multi-function OBE according to embodiments of the present invention;
Fig. 9 is the process flow diagram according to the vehicle maintenance service operations of miniature multi-function OBE of the present invention; And
Figure 10 is the process flow diagram according to the MP3 music service operation of miniature multi-function OBE of the present invention.
Embodiment
Describe the preferred embodiments of the invention below in detail, the embodiment of these preferred embodiments has been shown in corresponding accompanying drawing.In all accompanying drawings, as possible, identical Reference numeral is represented identical parts.
Figure 1A and 1B are front elevation and the side views that the system of service is provided for automobile miniature multi-function car-mounted device (OBE) according to an embodiment of the invention.Fig. 2 is the block scheme of miniature multi-function OBE according to an embodiment of the invention.
Miniature multi-function car-mounted device (OBE) is a kind of multifunctional vehicle mounted device that is used for active Dedicated Short Range Communications, (DSRC) network on the automobile that is installed in.
With reference to Figure 1A and 1B, automobile 1 has been equipped the miniature multi-function OBE100 in the present embodiment.This miniature multi-function OBE 100 provides ITS function and GPS function.That is to say that miniature multi-function OBE 100 receives ITS and IR service by the DSRC network, and provide navigation Service for the driver by receiving locator data from satellite 5.That is to say, for realize with automobile in the communicating by letter of miniature multi-function OBE 100, a plurality of wayside unit (RSE) 200 are installed in the predetermined space by the road, and RSE 200 provides center 220 or multi-function service to provide server 230 to link to each other by wired 210 and transport information.RSE 200 can link to each other with accounting server (not shown), so that electronics or Credit Card Payments service to be provided.In addition, RSE 200 can provide system's (not shown) to link to each other with urgent rescue services such as police office and fire brigade by communication network 210.
When the user drove a car, miniature multi-function OBE 100 provided navigation Service at any time by receiving locator data from gps satellite 5.In addition, when the automobile 1 of the miniature multi-function OBE 100 that miniature multi-function OBE 100 is housed sailed the communication range of RSE 200 into, miniature multi-function OBE 100 provided various services for the driver in the automobile 1 or passenger.That is to say that when automobile 1 sailed the communication range of RSE 200 into, miniature multi-function OBE 100 communicated by letter with RSE 200 based on the DSRC agreement, thereby electronic charging (ETC) service, vehicle diagnosis service, and MP3 music service are provided.In addition, miniature multi-function OBE 100 provides center 220 to receive Real-time Traffic Informations from transport information, and with received information stores in traffic information database 302.Therefore, because the Real-time Traffic Information that provides to the driver is provided navigation Service, can provide transport information accurately to the driver according to the miniature multi-function OBE 100 of the present embodiment.
This miniature multi-function OBE 100 comprise by use battery provide necessary power the power supply (not shown), be used for when miniature multi-function OBE 100 opens, providing the circuit of predetermined function and be used for miniature multi-function OBE 100 is installed in box body (not shown) on the automobile 1.
Fig. 2 has shown the circuit of OBE 100.That is to say that miniature multi-function OBE 100 comprises the card reader that is used for reading the data that are stored in smart card 102; Be used to provide microprocessor application-specific IC (ASIC) 112 according to the various function services of the present embodiment; From the satellite receiving satellite signal, the received satellite-signal of demodulation to be extracting navigation data by gps antenna, and based on the navigation data compute location information of being extracted, thereby the GPS receiver 114 of navigation Service is provided; To/from the monolithic integrated circuit microwave integrated circuit (MMIC) 116 of RSE 200 emission/reception data, MMIC 116 for be used to encode, decode, the integrated circuit of modulation and demodulating data; Electric signal-light signal conversion/light signal-electrical signal conversion device 140; Be used to show the display 118 of various modes of operation; Disposed and be used to select the keyboard of certain function and the keyboard input block 120 of switch; Be used to play the MP3 player of MP3 music file; Be used to amplify the amplifier 124 of sound signal; Loudspeaker (SPK); Universal asynchronous reception/transmitter (UART) 126; Video output terminal 127; And audio frequency outlet terminal 130.
With reference to figure 2, smart card 102 stores the various information relevant with automobile, user and electronic charging (ETC), for example car category, user address and be the amount of money of ETC savings.The canned data to provide is provided in the card reader 110 smart card 102 by phased manner.Card reader 110 is read the data that are stored in the smart card 102 and institute's read data is delivered in the microprocessor 112.
Thereby keyboard input block 120 is the input blocks that are used for providing to the user interface operation miniature multi-function OBE 100.Keyboard input block 120 comprises the switch, the button that is used for emergency rescue request that are used for the select target function, is used to ask a plurality of buttons of various services and the numerical key that is used to be provided with various operations.
According to user's request, MP3 player 122 provides on the server 230 or by UART 126 from the multi-function service of DSRC network and downloads the MP3 music files, and plays the MP3 music file of being downloaded, and makes the driver can music appreciating when driving.UART 126 is a kind of RS-232C communication port or a kind of USB port, is connected by the communication port with PC or palm PC and downloads and upgrade from the navigation data geodata that is used to navigate of new site more.
The satellite-signal that 114 demodulation of GPS receiver receive by gps antenna extracts navigation data from the process satellite data of demodulation, and obtains locating information by the current location of calculating automobile 1 based on the navigation data that extracts.The locating information that is obtained is sent to microprocessor 112.
Loudspeaker (SPK) output characterizes the sound and the voice of charge station, surplus capital or alarm, or exports the MP3 music file of being play.Audio output unit 130 is with the outer loudspeaker of audio signal output to automobile.
Display 118 is by map, car speed and the transport information of text or graphic presentation current location.Video output unit 128 outputs to the outer display of automobile with vision signal, and LCD (LCD) for example is with the show navigator data.MMIC 116 communicates by letter with RSE 200 by the DSRC antenna according to the DSRC wireless protocols.That is to say that MMIC 116 will become the wireless signal of 5.8HGz bandwidth from the data-modulated that microprocessor ASIC 112 receives, and this wireless signal transfer is arrived RSE 200 by antenna.And MMIC 116 also by the wireless signal of antenna reception from RSE 200, amplifies the signal that is received, this amplifying signal of demodulation, and this restituted signal of decoding, and will be sent to microprocessor ASIC 112 through the data of decoding.If adopt the communication between infrared ray realization OBE 100 and the RSE 200, data are by electric signal-light signal conversion is sent to RSE 200, and miniature multi-function OBE 100 is by the conversion received signal of light signal-electric signal.Received data are sent on the microprocessor.
Fig. 3 A and 3B have shown microprocessor ASIC 112.Microprocessor ASIC 112 can comprise the processing of ARM type, and it is the processor of a kind of Reduced Instruction Set Computer (RISC) type.The storage of the internal storage of microprocessor ASIC 112 is in order to the software of carrying out the DSRC agreement, the geographic information database DB that is used to navigate, Real-time Traffic Information database (DB), such as the automobile information of car speed and model and the locating information that transmits from GPS receiver 114.And little processing ASIC 112 provides various functions according to the input of keyboard input block 120.That is to say, microprocessor ASIC 112 utilizes the locating information that receives from GPS receiver 114, such as vehicle condition information, the geographic information database of car speed and model, and the Real-time Traffic Information database, show navigator state on display 118.
When automobile 1 passed through freeway toll station, miniature multi-function OBE 100 also provided the service of automatic fee.That is to say that miniature multi-function OBE 100 reads the information relevant with the automobile model, accounting information, be used for the credit of automatic fee and such as user's information of address etc., and the data that read are sent to microprocessor 112.Microprocessor 112 is provided by the information that provides with outside input, and by MMIC 116 process information is sent to RSE 200 or transponder.In addition, navigation information will show on display 118, or export by loudspeaker (SPK).Sometimes, information is provided on outer display or the outer loudspeaker by audio frequency outlet terminal 128 or video output terminal 130.
Miniature multi-function OBE 100 can comprise antenna, coordinate identification CPU, thus be positioned at OBE 100 inside reduce the POI (point of intered, interaction point) of manufacturing cost with shared other indicator, power supply, box body and antenna.When new transport information need be upgraded, miniature multi-function OBE 100 can be updated by utilizing UART 126 to download additional data.
Video monitor is connected in order to the indication traffic map by video output terminal 128.In addition, when driving a car, provide the position of condition of road surface, key construction and buildings with voice and text by loudspeaker (SPK) or LCD 118.
And when driving, MP3 player 122 is play the MP3 music file, thereby the driver can pass through the loudspeaker music appreciating.
By the selector switch of keyboard input block 120, the user can select various functions, and for example GPS function, MP3 function, transport information provide function.And, in other function of carrying out OBE 100, can carry out the automatic fee function.
As mentioned above, microprocessor 112 can be by realizing to the multiple mode shown in the 3C as Fig. 3 A.
Fig. 3 A has shown the microprocessor according to first embodiment of the present invention among Fig. 2, and Fig. 3 B has shown the microprocessor according to second embodiment of the present invention, and Fig. 3 C has shown the microprocessor according to the 3rd embodiment of the present invention.
With reference to figure 3A, according to the microprocessor 112 of the first embodiment scheme comprise ARM7 7DM core microprocessors 310, according to OBE 100 designs according to the present invention as the predetermined interface software of L1 layer communication protocol and the PLL Control Software that is used to provide automatic fee service and transport information.
With reference to figure 3B, according to the microprocessor 112 of second embodiment comprise ARM9 9DM core processor 320, for OBE 100 designs of the present invention as predetermined interface software, the numerical software of the logic software of L2 layer communication protocol and the storing software that is used to improve performance.
With reference to figure 3C, microprocessor 112 according to the 3rd embodiment comprises ARM9 9DM core processor 320, be the predetermined interface software as the application program of L7 layer communication protocol of OBE of the present invention 100 designs, and be used for vehicle diagnostics, CAN interface and MP3 player so that the assistant software of various functions to be provided.
Fig. 3 D is the structural drawing according to the software of miniature multi-function OBE of the present invention.With reference to figure 3D, the software of miniature multi-function OBE comprises 7 layers (L1 is to L7).That is to say that software according to the present invention comprises Physical layer L1, logical layer L2, network layer L3 ..., application layer L7.
Traditional OBE comprises the central processing unit (CPU) that is designed to 2 wave bands by UART.Therefore, need optional equipment that subsidiary function is provided, so just increased the manufacturing cost of traditional OBE.But, comprise the microprocessor 112 that is designed to more than 4 wave bands according to the miniature multi-function OBE of the present embodiment, just can provide subsidiary function thereby need not optional equipment.Therefore, more cheap according to the miniature multi-function OBE of the present embodiment than traditional OBE, for example, than traditional OBE cheap 1/4.
In addition, GPS receiver antenna, OBE antenna and MP3 chip are installed in the periphery of traditional OBE.Therefore, need provide extra box body and power supply for traditional OBE.But, comprised these functions according to the miniature multi-function OBE inside of the present embodiment, thus can common source, box body and indicator.Therefore, miniature multi-function OBE is more cheap than traditional OBE, for example than traditional OBE cheap 1/3.
Below, provide service method with reference to Fig. 4 to 10 explanation by miniature multi-function OBE according to the present invention.
Fig. 4 is the process flow diagram according to the general operation of the miniature multi-function OBE of embodiment of the present invention.Fig. 5 is the process flow diagram according to the updating operation of the navigation data of the miniature multi-function OBE of embodiment of the present invention.
When highway section in RSE 200 is connected the DSRC network of the running car of the miniature multi-function OBE that the present embodiment is housed, miniature multi-function OBE 100 is opened, and is initialised in step S1 and S2.GPS receiver 114 receives navigation signal from gps satellite by gps antenna, and handles the navigation data that is received, to calculate the current location of automobile in step S4.In step S5, microprocessor ASIC 112 adopts the map of prestore geographic information database 304 and car status information display automobile current location on LCD, and on LCD the current location and the speed of display automobile.Here, by showing the Real-time Traffic Information with current location map on LCD, miniature multi-function OBE 100 also provides by the DSRC network and has received and be stored in Real-time Traffic Information in the Real-time Traffic Information database 302.
In step S6 and S7, when user or server requests reservation service, the operation of execution predetermined set is requested service to provide.These services not only provide navigation information and Real-time Traffic Information, and provide the vehicle maintenance service, emergency assistance services, the automatic fee service, automatic stopping paying service, MP3 music service, the network service, broadcast service, direction, speed, locating information provide service, and charge station's charge equipment information provides service.
Miniature multi-function OBE 100 also upgrades the guiding data so that geography information and transport information accurately to be provided.As shown in Figure 5, in S13, the UART 126 of miniature multi-function OBE 100 links to each other with PC (PC) or palm PC (PDA) at step S11, by access to netwoks transport information new site more, the navigation data of down loading updating and the GIS DB 304 that upgrades.As mentioned above, miniature multi-function OBE 100 not timings ground upgrading navigation data.
Fig. 6 is the process flow diagram that receives operation according to the Real-time Traffic Information of the miniature multi-function OBE of embodiment of the present invention.Fig. 7 is the process flow diagram according to the electronic charging operation of the miniature multi-function OBE of embodiment of the present invention.Fig. 8 is the process flow diagram that operation is provided according to the urgent rescue services of the miniature multi-function OBE of embodiment of the present invention.
Miniature multi-function OBE 100 is usually operated under the navigation mode.When miniature multi-function OBE100 entered the communication range of RSE 200, MMIC 116 received the wireless signal of RSE 200 and communicates by letter with RSE 200 according to the DSRC agreement.By RSE 200, the Real-time Traffic Information of traffic information center 220 is sent on the MMIC 116 of OBE 100.MMIC 116 demodulation also are sent to this demodulating data on the microprocessor ASIC 112 by the wireless signal that the OBE antenna receives.In S23, microprocessor ASIC 112 decodings are through demodulated data and pass through reference decoder data upgrading traffic information database DB 303, and navigation Service is provided at step S21.
Utilize infrared ray (IR) when communicating by letter when between OBE 100 and the RSE 200, OBE 100 is light signal with electrical signal conversion and light signal is sent on the RSE 200.Perhaps, OBE 100 will be converted to electric signal and electric signal will be sent on the microprocessor from the light signal of RSE 200.
In addition, if RSE 200 has installed in charge station, with the ETC service of carrying out as shown in Figure 7.The ETC service is a kind of automatic fee service.That is to say, utilize charging section inlet information calculations fee payable, and corresponding expense is collected in request.Therefore, in step S31 and S32, miniature multi-function OBE 100 is by using card reader 110, according to the fund information defrayment that is recorded in the smart card 102.This expense can be utilized e-bank's service payment by user's electronic account or credit card.
As shown in Figure 8, at step S41 in S43, if by starting the corresponding button emergency rescue request service on the miniature multi-function OBE100, by reading the current location of being calculated by GPS receiver 114, miniature multi-function OBE 100 sends the emergency relief request signal that has the automobile current location information by the DSRC network to traffic information center 220.Therefore, be to carry out the emergency relief operation, traffic information center 220 sends the emergency relief request signal to the police office or the firehouse that are positioned near the automobile current location.
Fig. 9 is the process flow diagram according to the vehicle maintenance service operations of miniature multi-function OBE of the present invention.Figure 10 is the process flow diagram according to the MP3 music service operation of miniature multi-function OBE of the present invention.
With reference to figure 9,, collect the relevant information (for example car speed, car category etc.) of various conditions of the vehicle, and transfer them to fat server 230 if start button or the service of server instruction request vehicle maintenance by the user.Behind the present situation based on the information analysis automobile of collecting, when the needs operations necessary, fat server 230 sends predetermined instruction.And in S54, miniature multi-function OBE 100 receives predetermined instruction and show the instruction that receives on LCD at step S51.Therefore, the user can carry out necessary attended operation soon.
When the user asked the MP3 music service, the MP3 music file provided server 230 to download or use the MP3 music file of MP3 player plays storage from multi-function service.The MP3 music file that is played amplifies by amplifier 124, and by loudspeaker (SPK) output.
Antenna and loudspeaker can be put into miniature multi-function OBE 100, perhaps can use cable that they are installed on the vehicle window.In addition, miniature multi-function OBE 100 can be installed near on the precalculated position of driver's instrument panel so that the control volume.
As mentioned above, miniature multi-function OBE according to the present invention can provide various services, for example navigation Service, Real-time Traffic Information, ETC service, vehicle maintenance service and MP3 music service.In addition, miniature multi-function OBE according to the present invention is easy to be installed on the automobile also easy to use.
In addition, miniature multi-function OBE is more cheap than the manufacturing price of traditional OBE.Traditional OBE comprises the central processing unit (CPU) that is designed to 2 wave bands by UART.Therefore, need optional equipment so that subsidiary function to be provided.But miniature multi-function OBE according to the present invention comprises the microprocessor 112 that is designed to more than 4 wave bands, just can provide subsidiary function thereby need not optional equipment.Therefore, the miniature multi-function OBE according to the present embodiment is more cheap than traditional OBE.
In addition, GPS receiver antenna, OBE antenna and MP3 chip externally are installed on traditional OBE.Therefore, need provide extra box body and power supply for traditional OBE.But, comprised these functions according to miniature multi-function OBE of the present invention inside, thus can common source, box body and indicator.Therefore, miniature multi-function OBE according to the present invention is more cheap than traditional OBE.
It will be apparent to one skilled in the art that the present invention can carry out various improvement and variation.Therefore, be appreciated that the present invention contained these improvement and variation, as long as they are in the scope of protection domain that claim of the present invention limited and equivalent thereof.
Claims (9)
1. car-mounted device that has GPS receiver that is used for intelligent transportation system, described intelligent transportation system disposes described car-mounted device and wayside unit, described wayside unit is installed in roadside, tollbooth or parking lot, and communicate by emission/reception wireless signal or infrared signal and the described car-mounted device that is installed on automobile, described car-mounted device comprises:
The car-mounted device box body is used to hold the internal circuit of described car-mounted device;
GPS receiver receives navigation data so that the current location of described automobile to be provided by global positioning system antenna from GPS satellite;
The keyboard input block is used to import predetermined instruction so that described car-mounted device is carried out object run;
Card reader is carried out automatic accounting routine according to electronic charging, to be stored in fund information payment toll and the parking fee in the smart card by utilization;
Serial communication unit is used for downloading predetermined data with the renewal geography information from external unit, thereby navigation Service is provided;
Loudspeaker is used to export voice;
Miniature amplification monolithic integrated microwave circuit is used for data-modulated is become wireless signal, and by the car-mounted device antenna described wireless signal is sent to described wayside unit; And
Integrated microprocessor ASIC; Be used for storing predetermined software to carry out dedicated short-range communication; The storage geographic information database is to provide navigation Service; Storage Real-time Traffic Information database is to provide Real-time Traffic Information; And utilization is transmitted the locating information of coming and the data of coming from described miniature amplification monolithic integrated microwave circuit transmission from described GPS receiver; Provide transport information by described loudspeaker with voice mode; And provide predetermined function according to the input of described keyboard input block
Wherein, the major function element of global positioning system terminal comprises: antenna and coordinate identification CPU, interaction point is installed with shared described car-mounted device box body, power supply and indicator in described car-mounted device box body, the position of voice service to inform described automobile is provided, provides and provide transport information alternately between the cpu function of electronic charging function and cpu function by described global positioning system terminal and described car-mounted device by internal loudspeaker.
2. car-mounted device as claimed in claim 1, wherein, described car-mounted device comprises the MP3 player in the described car-mounted device box body, with the music selector switch that is preset on the described keyboard input block, be used for when the user drives a car, by internal loudspeaker or outer loudspeaker plays and the outputting music that utilizes the audio frequency outlet terminal to connect.
3. car-mounted device as claimed in claim 1, wherein, described car-mounted device antenna and described global positioning system antenna are installed in the described car-mounted device box body, and described car-mounted device comprises electric signal-light signal conversion delivery unit and photosignal receiving element, be used for when described car-mounted device and described wayside unit use infrared signal to communicate by letter, communicating by letter with the reception/transmitter of described wayside unit.
4. car-mounted device as claimed in claim 1, wherein, described integrated microprocessor ASIC be a kind of have identical with ARM7 7DM or more dominance can little process nuclear, it is that described car-mounted device designs the predetermined software as L1 layer communication protocol that described little process nuclear has, institute wherein, state little process nuclear and be designed to universal asynchronous receiver-transmitter, thereby the rope that increases stability controller encircles frequency mutually more than 4 wave bands.
5. car-mounted device as claimed in claim 1, wherein, described integrated microprocessor ASIC be a kind of have identical with ARM7 7DM or ARM9 9DM or more dominance can little process nuclear, it is that described car-mounted device designs predetermined software, digital function and the memory function as L2 layer communication protocol that described little process nuclear has, thereby manufacturing cost is minimized.
6. car-mounted device as claimed in claim 1, wherein, described integrated microprocessor ASIC be a kind of have identical with ARM7 7DM or ARM9 9DM or more dominance can little process nuclear, described little process nuclear has for the predetermined software of described car-mounted device design as L7 layer communication protocol, to realize vehicle diagnostics function, controller local area network's interface function and MP3 function.
7. car-mounted device as claimed in claim 1, wherein, described car-mounted device further comprises:
Communication port, when global positioning system terminal being inserted described car-mounted device so that the GPS service to be provided, and request is upgraded or when change navigation and transport information, from external unit the download tentation data with enhancement service, and
Video output terminal and audio frequency outlet terminal are used for the navigation vision signal is outputed to the external video monitor.
8. car-mounted device as claimed in claim 1, wherein, described car-mounted device box body comprises functional switch, be used for selecting function, GPS-capable and MP3 function a kind of of car-mounted device, be used to select internal loudspeaker or outer loudspeaker, and the brightness that is used for the volume and the LCD of controls playing music.
9. as each the described car-mounted device in the claim 1 to 8, wherein, described car-mounted device is based on a kind of radio frequency transfer scheme or a kind of infrared light transfer scheme of intelligent transportation system, perhaps communicates based on the radio frequency transfer scheme of described intelligent transportation system and described infrared light transfer scheme and described wayside unit simultaneously.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050003710 | 2005-01-14 | ||
| KR1020050003710A KR20060083027A (en) | 2005-01-14 | 2005-01-14 | Multi function terminal for active dsrc |
| KR1020050055567 KR20060136066A (en) | 2005-06-27 | Ultra-compact, multi-vehicle terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1811846A true CN1811846A (en) | 2006-08-02 |
Family
ID=36844749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100011529A Pending CN1811846A (en) | 2005-01-14 | 2006-01-13 | Multifunctional on-board-equipment (OBE) for intelligent transport systems (ITS) |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20060083027A (en) |
| CN (1) | CN1811846A (en) |
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| CN101350110B (en) * | 2008-09-11 | 2010-06-23 | 交通部公路科学研究所 | Method for calculating toll without parking through satellite positioning |
| CN101789185A (en) * | 2010-03-11 | 2010-07-28 | 武汉理工大学 | Wireless traffic signal system and method thereof cooperated with vehicle tracks at intersections |
| CN101221696B (en) * | 2007-12-29 | 2010-12-15 | 青岛海信网络科技股份有限公司 | Public transportation vehicle locating method |
| CN101079188B (en) * | 2007-07-05 | 2011-06-15 | 青岛海信网络科技股份有限公司 | Vehicle mounted terminal and public transportation system containing the vehicle-mounted terminal |
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| CN101350110B (en) * | 2008-09-11 | 2010-06-23 | 交通部公路科学研究所 | Method for calculating toll without parking through satellite positioning |
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