CN103259834A - Method and equipment for spreading traffic information - Google Patents
Method and equipment for spreading traffic information Download PDFInfo
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- CN103259834A CN103259834A CN 201310049868 CN201310049868A CN103259834A CN 103259834 A CN103259834 A CN 103259834A CN 201310049868 CN201310049868 CN 201310049868 CN 201310049868 A CN201310049868 A CN 201310049868A CN 103259834 A CN103259834 A CN 103259834A
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Abstract
The invention discloses a method for spreading traffic information. The method for spreading the traffic information comprises the following steps: when a vehicle has an emergent fault, an OBU reports a corresponding fault warning message and a rescue request to an RSU, and the RSU broadcasts the fault warning message to one or a plurality of OBUs in a cell. The invention further discloses equipment for spreading the traffic information. By means of the method and equipment for spreading the traffic information, when the equipment has an emergent fault, the fault warning message does not need to be sent to a core network after being reported to an access point, the fault warning message is directly processed by the access point, is broadcasted to the OBUs in the cell, and is broadcasted to other OBUs through the core network and surrounding access points, so that the OBUs in the cell or the access point can take emergency measures timely according to the fault warning message. Therefore, time urgency is guaranteed, and time delay is small. Besides, the access point shares the work of data processing and transmission, and the occupied resources of the core network are small. In addition, the fault warning message can be broadcasted to a plurality of the OBUs, and the coverage area is larger.
Description
It is on November 19th, 2012 that the application requires the applying date, application number is 201210469655.4, denomination of invention is a kind of intelligent transportation system and the priority in first to file that realizes the method for management thereof, and described full content in first to file all embodies in this application.
Technical field
The invention belongs to intelligent transportation field, relate in particular to the method and apparatus that a kind of transport information is propagated.
Background technology
Existing field of traffic, intelligent transportation system have obtained using widely.Intelligent transportation be one based on the service system of hyundai electronics information technology towards communications and transportation.Its outstanding feature be with information collection, processing, issue, exchange, analyze, be utilized as main line, for traffic participant provides multifarious service.Intelligent transportation system (IntelligentTransportationSystem, be called for short ITS) be the developing direction of future transportation system, it be with advanced person's information technology, data communication transmission technology, electronic sensor technology, control technology and computer technology etc. effectively integrated apply to face traffic control system entirely and set up a kind of on a large scale in, comprehensive playing a role, in real time, comprehensive traffic transportation management system accurately and efficiently.
There are the following problems at least in the prior art: when there is fault in vehicular platform equipment in the prior art, usually fault or emergence message need be transmitted to core net by access point, by notifying each access point to be transmitted to other vehicular platform equipment one by one with mode of unicast again after the core net processing, therefore cause notifying not prompt enough, problems such as time delay is big, of long duration, and the resource occupation resource of core net is too much.Need in the access point coverage, broadcast when emergence message or when having periodic broadcast professional, but access point is processing service data not, will cause wasting the bandwidth resources between access point and the vehicular platform, also have the bandwidth resources between access point and the core net.
Summary of the invention
In view of this, an object of the present invention is to provide the method and apparatus that a kind of transport information is propagated.For there is a basic understanding some aspects to the embodiment that discloses, provided simple summary below.This summary part is not to comment general, neither determine the key/critical component or describe the protection range of these embodiment.Its sole purpose is to present some concepts with simple form, with this preamble as the detailed description of back.
An object of the present invention is to provide the method that a kind of transport information is propagated, comprising:
When emergency appearred in vehicle, board units OBU reported corresponding fault warning information and aid request to give roadside unit RSU;
Described RSU is broadcast to described fault warning information one or more OBU of this residential quarter.
In some optional embodiments, described fault warning information comprises: equipment fault warning information and/or traffic failure warning information;
Described traffic failure warning information comprises one or more in following: OBUID, fault time, message sequence number, failure code, state, longitude, latitude, height and additional message.
In some optional embodiments, described failure code is used for the expression fault type, this fault type comprise following one or more:
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
An object of the present invention is to provide the method that a kind of transport information is propagated, comprising:
When emergency appearred in vehicle, board units OBU reported corresponding fault warning information and aid request to give Service Control Gateway SCG;
Described SCG sends to one or more roadside unit RSU with described fault warning information and aid request;
Receive that the RSU of described fault warning information is broadcast to described fault warning information one or more OBU of this residential quarter.
In some optional embodiments, described fault warning information is the traffic failure warning information, specifically comprises following one or more:
OBUID, fault time, state, longitude, latitude, highly, failure code and additional message.
In some optional embodiments, described failure code is used for the expression fault type, this fault type comprise following one or more:
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
In some optional embodiments, described SCG sends to all RSU with broadcast mode with described fault warning information and aid request, or in the multicast mode described fault warning information and aid request are sent to the relevant RSU of a part, or in the mode of clean culture described fault warning and aid request information are sent to a relevant RSU.
An object of the present invention is to provide the method that a kind of transport information is propagated, comprising:
Service Control Gateway SCG sends broadcast to one or more roadside unit RSU;
Described RSU periodically is broadcast to service message one or more board units OBU of this residential quarter according to described broadcast.
In some optional embodiments, described broadcast comprises one or more in following:
Broadcast sequence number, broadcast cycle information, broadcasting zero-time, off-the-air time, sign and broadcasted content;
Described sign is used for the demonstration of expression OBU display, OBU broadcasts and reads or the advertisement screen demonstration.
In some optional embodiments, described service message comprises sign and text message;
Described text message comprises described broadcasted content.
In some optional embodiments, described SCG sends to all RSU with broadcast mode with described broadcast, or in the multicast mode described broadcast is sent to the relevant RSU of a part, or in the mode of clean culture described broadcast is sent to a relevant RSU.
In some optional embodiments, also comprise:
Described SCG sends and goes off the air message to described RSU, is used for stopping described RSU and sends service message to OBU;
Wherein, the described message of going off the air comprises the broadcast sequence number, is used for this broadcast of mark.
An object of the present invention is to provide the method that a kind of transport information is propagated, comprising:
When roadside unit RSU broke down, described RSU reported fault warning information to roadside unit management entity RME;
Described RME carries out fault restoration according to fault warning information, and/or notifies other RSU to handle;
RME preserves warning information.
In some optional embodiments, described fault warning information is the equipment fault warning information, comprises following one or more:
RSUID, fault time, failure code, maintenance call and additional message.
An object of the present invention is to provide the method that a kind of transport information is propagated, comprising:
When roadside unit RSU detected traffic conditions, the RSU reporting service information was given Service Control Gateway SCG;
Described SCG preserves described business information.
In some optional embodiments, also comprise:
Described SCG sends to other one or more RSU with described business information;
Receive that the RSU of described business information is broadcast to described business information one or more OBU of this residential quarter again
In some optional embodiments, comprise following one or more:
Business hours, service code and additional information; Wherein, described service code is used for following one or more of expression:
Rear-end collision, vehicle enter isolation strip, ring road accident or ring road blocks up and overspeed of vehicle.
Another object of the present invention is, a kind of board units roadside unit RSU is provided, and comprising:
Receiving element is used for receiving fault warning information and the aid request that board units OBU reports;
Transmitting element is for the one or more OBU that described fault warning information are broadcast to this residential quarter.
In some optional embodiments, described fault warning information is equipment fault warning information and/or traffic failure warning information; Described traffic failure warning information comprises one or more in following:
OBUID, fault time, message sequence number, failure code, state, longitude, latitude, height and additional message.
In some optional embodiments, described failure code is used for the expression fault type, this fault type comprise following one or more:
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
Another object of the present invention is, a kind of Service Control Gateway SCG is provided, and comprising:
Receiving element is used for receiving fault warning information and the aid request that OBU reports;
Transmitting element is used for described fault warning information and aid request are sent to one or more RSU, so that described RSU is broadcast to described fault warning information one or more OBU of this residential quarter.
In some optional embodiments, described fault warning information is equipment fault warning information and/or traffic failure warning information; Described traffic failure warning information comprises following one or more:
OBUID, fault time, state, longitude, latitude, highly, failure code and additional message.
In some optional embodiments, described failure code is used for the expression fault type, this fault type comprise following one or more:
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
In some optional embodiments, described transmitting element sends to all RSU with broadcast mode with described fault warning information and aid request, or in the multicast mode described fault warning information and aid request are sent to the relevant RSU of a part, or in the mode of clean culture described fault warning information and aid request are sent to a relevant RSU.
Another object of the present invention is, a kind of Service Control Gateway SCG is provided, and comprising:
Generation unit is used for generating broadcast;
Transmitting element is used for sending described broadcast to one or more RSU, so that RSU periodically is broadcast to service message one or more OBU of this residential quarter.
In some optional embodiments, described broadcast comprises one or more in following:
Broadcast sequence number, broadcast cycle, broadcasting zero-time, off-the-air time, sign and broadcasted content;
Wherein, described sign is used for the demonstration of expression OBU display, OBU broadcasts and reads or the advertisement screen demonstration.
In some optional embodiments, described service message comprises sign and text message; Wherein, described text message comprises described broadcasted content.
In some optional embodiments, described transmitting element sends to all RSU with broadcast mode with described broadcast message, or in the multicast mode described broadcast message is sent to the relevant RSU of a part, or in the mode of clean culture described broadcast message is sent to a relevant RSU.
In some optional embodiments, described transmitting element also is used for sending going off the air message to described RSU, sends described service message to OBU to stop RSU;
Wherein, the described message of going off the air comprises the broadcast sequence number.
Another object of the present invention is, a kind of board units roadside unit RSU is provided, and comprising:
Receiving element is used for receiving the broadcast that SCG sends;
Transmitting element is used for according to described broadcast, service message periodically is broadcast to one or more OBU of this residential quarter.
In some optional embodiments, described broadcast also comprises one or more in following:
Broadcast sequence number, broadcast cycle, broadcasting zero-time, off-the-air time, sign and broadcasted content; Described sign is used for the demonstration of expression OBU display, OBU broadcasts and reads or the advertisement screen demonstration.
In some optional embodiments, described service message comprises sign and text message;
Described text message comprises described broadcasted content.
In some optional embodiments, described receiving element also is used for receiving the message of going off the air, to stop to send described service message to OBU;
Wherein, the described message of going off the air comprises the broadcast sequence number.
Another object of the present invention is, a kind of roadside unit management entity RME is provided, and comprising:
Receiving element is used for receiving the fault warning information that roadside unit RSU reports;
Processing unit is used for carrying out fault restoration according to fault warning information, and/or notifies other RSU to handle.
In some optional embodiments, described fault warning information is the equipment fault emergence message, comprises following one or more:
RSUID, fault time, failure code, maintenance call and additional message.
Another object of the present invention is, a kind of roadside unit RSU is provided, and comprising:
Detecting unit is for detection of traffic conditions;
Transmitting element is used for when detecting traffic conditions, and reporting service information is given Service Control Gateway SCG.
In some optional embodiments, described business information comprises following one or more:
Business hours, service code, additional information; Wherein, described service code is used for following one or more of expression:
Rear-end collision, vehicle enter isolation strip, ring road accident or ring road blocks up and overspeed of vehicle.
Another object of the present invention is, a kind of Service Control Gateway SCG is provided, and comprising:
Receiving element is used for receiving the business information that roadside unit RSU reports;
Processing unit is used for described business information is handled accordingly.
In some optional embodiments, described business information comprises following one or more:
Business hours, service code, additional information; Wherein, described service code is used for following one or more of expression:
Rear-end collision, vehicle enter isolation strip, ring road accident or ring road blocks up and overspeed of vehicle.
Adopt scheme provided by the invention, when some emergency appears in vehicular platform equipment, behind the notice access point, do not need to send to core net, but directly handled by access point, and be broadcast to the OBU of this residential quarter, and be broadcast to other OBU by the access point of core net by periphery, make this residential quarter OBU or access point according to fault warning information broadcasting can in time take emergency measures, thereby guaranteed the urgency of time, time delay is little, and access point has been shared data and has been handled the work of namely transmitting, core net to take resource few, and can be broadcast to a plurality of OBU simultaneously, compare existing clean culture and give OBU, coverage is bigger.All OBU emergence messages receive only needs access point broadcasting once to get final product, and does not need repeatedly to broadcast, and has improved efficient.
For above-mentioned and relevant purpose, one or more embodiment comprise the feature that the back will describe in detail and particularly point out in the claims.Below explanation and accompanying drawing describe some illustrative aspects in detail, and its indication only is some modes in the utilizable variety of way of principle of each embodiment.Other benefit and novel features will consider by reference to the accompanying drawings and become obviously along with following detailed description, and the disclosed embodiments are to comprise being equal to of all these aspects and they.
Figure of description
Fig. 1 is the intelligent transportation system network of network structural representation that the embodiment of the invention provides;
Fig. 2 is the method flow schematic diagram that a kind of transport information that the embodiment of the invention provides is propagated;
Fig. 3 is the method flow schematic diagram that a kind of transport information that the embodiment of the invention provides is propagated;
Fig. 4 is the method flow schematic diagram that a kind of transport information that the embodiment of the invention provides is propagated;
Fig. 5 is the method flow schematic diagram that a kind of transport information that the embodiment of the invention provides is propagated;
Fig. 6 is the method flow schematic diagram that a kind of transport information that the embodiment of the invention provides is propagated;
Fig. 7 is the method flow schematic diagram that a kind of transport information that the embodiment of the invention provides is propagated;
Fig. 8 is the method flow schematic diagram that a kind of transport information that the embodiment of the invention provides is propagated;
Fig. 9 is the structural representation of a kind of roadside unit RSU of providing of the embodiment of the invention;
Figure 10 is the structural representation of a kind of Service Control Gateway SCG of providing of the embodiment of the invention;
Figure 11 is the structural representation of a kind of Service Control Gateway SCG of providing of the embodiment of the invention;
Figure 12 is the structural representation of a kind of roadside unit RSU of providing of the embodiment of the invention;
Figure 13 is the structural representation of a kind of roadside unit management entity RME of providing of the embodiment of the invention;
Figure 14 is the structural representation of a kind of Service Control Gateway SCG of providing of the embodiment of the invention;
Figure 15 is the structural representation of a kind of Service Control Gateway SCG of providing of the embodiment of the invention.
Embodiment
The following description and drawings illustrate specific embodiments of the present invention fully, to enable those skilled in the art to put into practice them.Other embodiments can comprise structure, logic, electric, process and other change.Embodiment only represents possible variation.Unless explicitly call for, otherwise independent assembly and function are optional, and the order of operation can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The scope of embodiment of the present invention comprises the gamut of claims, and all obtainable equivalents of claims.In this article, these embodiments of the present invention can be represented with term " invention " individually or always, this only is for convenience, and if in fact disclose and surpass one invention, not that the scope that will automatically limit this application is any single invention or inventive concept.
Following abbreviation is applicable to present specification.
OBU-board units (On Board unit)
RSU-roadside unit (Roadside unit)
OME-board units management entity (OBU Management Entity)
RME-roadside unit management entity (RSU Management Entity)
SCG-Service Control Gateway (Service Control Gateway)
AAA-AAA server (Authentication, Authorization, Accounting)
DHCP Server-DynamicHost arranges agreement (Dynamic Host Configuration Protocol)
RWAITS-ITS wireless access part (Radio Wireless Access of Intelligent Transport System)
Network reference model
Network configuration
The intelligent transportation system network is divided into core net and Access Network two large divisions, wherein core net mainly finish intelligent transportation miscellaneous service carrying, to the management of Access Network network element configuration and and Access Network between data exchanging function.Access Network is mainly finished the function that bridge joint between wireless network and the cable network and car-mounted terminal insert the intelligent transportation core net.Overall structure and interface schema are seen the network structure of Fig. 1.
Network element
The intelligent transportation network is divided into core net and Access Network.Wherein the main network element of core net has SCG, OME, RME and aaa server.The main network element of Access Network has RSU and OBU.
The SCG network element is Service Control Gateway, mainly finishes processing and the flow process control of intelligent transportation system business datum.
The OME network element is the board units management entity, mainly finish board units in the intelligent transportation system networking, move back functions such as net, switching and location information management.
The RME network element is the roadside unit management entity, mainly finishes functions such as the networking of intelligent transportation system li side unit and oam.
The aaa server network element is the Certificate Authority collection entity, finishes board units and roadside unit authentication in the intelligent transportation system, system authorization and system's billing function.
DHCP Server is that DynamicHost arranges protocol server, mainly finishes the dynamic IP addressing of RSU and OBU in the system and distributes.
The RSU network element is roadside unit, mainly finishes bridge joint and the data converting function of intelligent transportation wireless access part and wireline side.
The OBU network element is board units, finishes the transmitting-receiving of custom end intelligent traffic system business datum, the carrying of the various functions of client.
In order to solve above-mentioned XXX shortcoming, the embodiment of the invention adopts XXX to solve.
Embodiment one
In some optional embodiments, the method that provides a kind of transport information to propagate.Fig. 2 is the method flow schematic diagram that the transport information that provides of the embodiment of the invention one is propagated.As shown in Figure 2, this method may further comprise the steps:
Step S101, when emergency (or OBU itself breaks down) appearred in vehicle, OBU reported corresponding fault warning information and aid request to give RSU.
This fault warning information comprises equipment fault warning information and/or traffic failure warning information.
Be used for OBU and break down when influential to the operation of nearby vehicle, send this fault warning information and aid request to RSU, the message body form sees Table 1:
Table 1
Table 2
Table 3
| The position | State |
| 0 | Keep |
| 1 | 0: no-fix; 1: the location |
| 2 | 0: north latitude: 1: south latitude |
| 3 | 0: east longitude; 1: west longitude |
| 13-32 | Keep |
Step S102, RSU is to this residential quarter one or more OBU Broadcast Fault warning information.
When RSU receives the fault warning information of OBU report, will be broadcast to the one or more OBU of this OBU periphery in this residential quarter to this fault warning information.
The message body data format sees Table 4:
Table 4
The scheme that adopts the embodiment of the invention to provide, when emergency appears in equipment, behind the notice access point, do not need to send to core net, but directly handled by access point, and be broadcast to the OBU of this residential quarter, make this residential quarter OBU or access point broadcast and in time to take emergency measures according to fault warning information, thereby guaranteed the urgency of time, time delay is little, and access point has been shared the work that the data processing is namely transmitted, core net to take resource few, and can be broadcast to a plurality of OBU simultaneously, compare existing clean culture and give OBU, coverage is bigger.
Embodiment two
In some optional embodiments, the method that provides a kind of transport information to propagate.Fig. 3 is the method flow schematic diagram that the transport information that provides of the embodiment of the invention one is propagated.As shown in Figure 3, this method may further comprise the steps:
Step 201, when emergency (or the fault of OBU own) appearred in vehicle, OBU sent fault warning information and aid request to SCG, and can ask rescue.
Fault warning information is equipment fault warning information and/or traffic failure warning information.
Be used for that vehicle breaks down or when the rescue of needs was arranged, OBU sent this message to SCG.The message body form sees Table 5:
Table 5
Step 202, SCG sends to one or more RSU with fault warning information and aid request with broadcasting, multicast or mode of unicast.
This fault warning information is equipment fault warning information and/or traffic failure warning information.
SCG notice RSU fault warning message.The message body form sees Table 6:
Table 6
Step 203, RSU is broadcast to fault warning information one or more OBU of this residential quarter.
The scheme that adopts the embodiment of the invention to provide, when emergency appears in equipment, be broadcast to other OBU by the access point of core net by periphery, make this residential quarter OBU or access point according to fault warning information broadcasting can in time take emergency measures, thereby guaranteed the urgency of time, time delay is little, and access point has been shared data and has been handled the work of namely transmitting, core net to take resource few, and can be broadcast to a plurality of OBU simultaneously, compare existing clean culture and give OBU, coverage is bigger.
Embodiment three
In some optional embodiments, the method that provides a kind of transport information to propagate.Fig. 4 is the method flow schematic diagram that the transport information that provides of the embodiment of the invention one is propagated.As shown in Figure 4, this method may further comprise the steps:
Step S301, when vehicle broke down (or OBU itself breaks down), OBU sent fault warning information and aid request to RSU and SCG.
This fault warning emergence message is equipment fault warning information and/or traffic failure warning information.
Fault message is referring to embodiment two table 1, table 2 and tables 3.
Step S302, RSU are broadcast to this fault warning information one or more OBU of this residential quarter.
Emergence message is referring to embodiment two table 4, table 2 and tables 3.
Step S303, SCG sends to other RSU with fault warning information and aid request with broadcasting, multicast or mode of unicast.
Step S304 receives that the RSU of this fault warning information is broadcast to this fault warning information one or more OBU of this residential quarter.
The scheme that adopts the embodiment of the invention to provide, when emergency appears in equipment, behind the notice access point, do not need to send to core net, but directly handled by access point, and be broadcast to the OBU of this residential quarter, and be broadcast to other OBU by the access point of core net by periphery, make this residential quarter OBU or access point according to fault warning information broadcasting can in time take emergency measures, thereby guaranteed the urgency of time, time delay is little, and access point has been shared data and has been handled the work of namely transmitting, core net to take resource few, and can be broadcast to a plurality of OBU simultaneously, compare existing clean culture and give OBU, coverage is bigger.
Embodiment four
In some optional embodiments, the method that provides a kind of transport information to propagate.Fig. 5 is the method flow schematic diagram that the transport information that provides of the embodiment of the invention one is propagated.As shown in Figure 5, this method may further comprise the steps:
Step S401, when RSU broke down, RSU reported fault warning information to RME.
The RSU fault, when unusual, RSU reports fault warning information to RME, and can ask to rescue fault, emergence message report, request rescue etc.
Be used for RSU and send fault, or send this message to RME when having vehicle to rescue.The message body form sees Table 7:
Table 7
Table 8
| Failure code | Describe |
| 0x00000000 | Normally |
| 0x00000001 | Power failure |
| 0x00000002 | The power amplifier temperature fault |
| 0x00000003 | Antenna failure |
| 0x00000004 | The wave point fault |
| 0x00000005 | The network interface fault |
| 0x00000006 | RSU power-on self-test failure fault |
| 0x00000007 | The software version load fault |
| 0x00000008 | The cpu resource fault |
| 0x000000FF | Other |
Step S402, RME carries out fault restoration according to fault warning information, and/or, notify other RSU to handle.
Step S403, RME preserves fault warning information.
Optionally, RME can show this fault warning information, for example can adopt the mode of display screen demonstration etc.
The scheme that adopts the embodiment of the invention to provide when emergency appears in RSU, is in time notified RME, makes RME broadcast and can in time take emergency measures according to fault warning information, makes other attending personnels in time learn this RSU fault; And RME in time notifies other RSU, and RSU is broadcast to the OBU of this residential quarter, makes driver and crew in time learn this RSU fault.
Embodiment five
In some optional embodiments, the method that provides a kind of transport information to propagate.Fig. 6 is the method flow schematic diagram that the transport information that provides of the embodiment of the invention one is propagated.As shown in Figure 6, this method may further comprise the steps:
Step 501, RSU gives SCG to the SCG reporting service information; Described business information comprises: report traffic information or traffic circulation information.
The message body form sees Table 9:
Table 9
Table 10
| Service code | Describe |
| 0x00000001 | Rear-end collision |
| 0x00000002 | Vehicle enters the isolation strip |
| 0x00000003 | Ring road accident or ring road block up |
| 0x00000004 | Overspeed of vehicle |
| 0x00000005～0x3FFFFFFF | Undetermined |
Step 502, SCG handles business information accordingly.
Adopt scheme provided by the invention, RSU also has the function that detects traffic, when monitoring some emergency, in time the notice core net is broadcast to other OBU by the access point of periphery, make this residential quarter OBU or access point broadcast and in time to take emergency measures according to fault warning information, thereby guaranteed the urgency of time, time delay is little; And make core net this traffic warehouse-in can be put on record, just with later retrieval and inquisition.
Embodiment six
In some optional embodiments, the method that provides a kind of transport information to propagate.Fig. 7 is the method flow schematic diagram that the transport information that provides of the embodiment of the invention one is propagated.As shown in Figure 7, this method may further comprise the steps:
Step 601, SCG sends broadcast to one or more RSU.
This broadcast is the message of business datum.
SCG is handed down to RSU with some service messages that need be broadcast to OBU in this RSU residential quarter by RSU.
Optionally, SCG can send to one or more RSU in the mode of broadcasting, multicast or clean culture.Broadcast volume data form sees Table 11:
Table 11
Table 12
| The position | Sign |
| 0 | Keep |
| 1 | The 1:OBU display shows |
| 2 | 1:OBU broadcasts and reads |
| 3 | 1: advertisement screen shows |
| 4-7 | Keep |
Step 602, RSU periodically is broadcast to one or more OBU in this residential quarter with service message.
This message is used for RSU and broadcasts the message that some are issued by SCG, for example: road work ahead information etc.
Response message volume data form sees Table 13:
Table 13
Wherein, comprise broadcasted content in the table 11 in the text message.
SCG sends to all RSU with broadcast mode with broadcast, or in the multicast mode broadcast is sent to the relevant RSU of a part, or in the mode of clean culture broadcast is sent to a relevant RSU.
The scheme that adopts the embodiment of the invention to provide, SCG can periodically be handed down to access point with some business information, in time notifies OBU, thereby realizes the quick propagation of transport information, and guarantees that the OBU of this RSU coverage can both correctly receive.
Embodiment seven
In some optional embodiments, the method that provides a kind of transport information to propagate.Fig. 8 is the method flow schematic diagram that the transport information that provides of the embodiment of the invention one is propagated.As shown in Figure 8, this method may further comprise the steps:
Step 701, SCG sends broadcast to one or more RSU.
This broadcast is the message of business datum.
SCG need be handed down to RSU by the service message that RSU is broadcast to OBU in this RSU residential quarter with some.
The message body data format is seen embodiment four tables 5.
Step 702, RSU is broadcast to service message one or more OBU of this residential quarter.
The message body data format is seen embodiment four table 6 and tables 7.
Step 703, SCG issues the message of going off the air and gives RSU, is handed down to the broadcast of RSU before being used for stopping.
SCG sends this message, is handed down to the broadcast of RSU before being used for stopping.The message body data format sees Table 14:
Table 14
The scheme that adopts the embodiment of the invention to provide, SCG can periodically be handed down to access point with some business information, in time notifies OBU, thereby realizes the quick propagation of transport information, and guarantees that the OBU of this RSU coverage can both correctly receive.
Transmit leg/recipient ID
Adopt 6 byte codes.
RSU：0xFE，0xXX，0xXX，0xXX，0xXX，0xXX
That is: when first byte of ID is 0xFE, be RSU
OBU：0x01，0xXX，0xXX，0xXX，0xXX，0xXX
That is: when first byte of ID is 0x01, be OBU
Wherein: 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF represent that this message is the broadcast towards RSU
0x01,0xFF, 0xFF, 0xFF, 0xFF, 0xFF represent that this message is the broadcast towards OBU
Core network element: 0x00,0xXX, 0xXX, 0xXX, 0xXX, 0xXX
That is: first byte of ID is 0x00, and the ID of core network element can be free in this scope
0xFF，0xFF，0xFF，0xFF，0xFF，0xFF
Fill with this ID during the unknown ID
Embodiment eight
In some optional embodiments, the equipment that provides a kind of transport information to propagate.Fig. 9 is the structural representation of a kind of roadside unit RSU of providing of the embodiment of the invention.As shown in Figure 9, this equipment comprises:
Receiving element 11 is used for receiving fault emergence message and the aid request that board units OBU reports;
Transmitting element 12 is for the one or more OBU that fault warning information are broadcast to this residential quarter.
Wherein, fault warning information comprises: equipment fault warning information and/or traffic failure warning information.
The traffic failure warning information comprises one or more in following:
OBUID, fault time, message sequence number, failure code, state, longitude, latitude, height and additional message.
Failure code is used for the expression fault type, fault type comprise following one or more: normal, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
Embodiment nine
In some optional embodiments, the equipment that provides a kind of transport information to propagate.Figure 10 is the structural representation of a kind of Service Control Gateway SCG of providing of the embodiment of the invention.As shown in figure 10, this equipment comprises:
Receiving element 21 is used for receiving fault warning information and the aid request that OBU reports;
Transmitting element 22 is used for fault warning information and aid request are sent to one or more RSU, so that RSU is broadcast to fault warning information one or more OBU of this residential quarter.
Fault warning information is equipment fault warning information and/or traffic failure warning information.
Described traffic failure warning information comprises following one or more:
OBUID, fault time, state, longitude, latitude, highly, failure code and additional message.
Described failure code is used for the expression fault type, fault type comprise following one or more::
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
Optionally, transmitting element 22 can send to other RSU with fault warning information and aid request in the mode of broadcasting, multicast or multicast.
Embodiment ten
In some optional embodiments, the equipment that provides a kind of transport information to propagate.Figure 11 is the structural representation of a kind of Service Control Gateway SCG of providing of the embodiment of the invention.As shown in figure 11, this equipment comprises:
Transmitting element 32 is used for sending broadcast to one or more RSU, so that RSU is broadcast to service message one or more OBU of this residential quarter.
Broadcast comprises one or more in following:
Broadcast sequence number, broadcast cycle, broadcasting zero-time, off-the-air time, sign and broadcasted content.
Wherein, sign is used for the demonstration of expression OBU display, OBU broadcasts and reads or the advertisement screen demonstration.
Service message comprises sign and text message; Text information comprises: the broadcasted content in the broadcast.
Optionally, as shown in figure 11,
Transmitting element 23 also is used for sending going off the air message to described RSU, sends service message to OBU to stop RSU;
Wherein, go off the air and comprise the broadcast sequence number in the message.
Embodiment 11
In some optional embodiments, the equipment that provides a kind of transport information to propagate.Figure 12 is the structural representation of a kind of roadside unit RSU of providing of the embodiment of the invention.As shown in figure 12, this equipment comprises:
Receiving element 41 is used for receiving the broadcast that SCG sends;
Transmitting element 42 is used for according to described broadcast, service message periodically is broadcast to one or more OBU of this residential quarter.
Wherein, broadcast comprises one or more in following:
Broadcast sequence number, broadcast cycle, broadcasting zero-time, off-the-air time, sign and broadcasted content.
Wherein, sign is used for the demonstration of expression OBU display, OBU broadcasts and reads or the advertisement screen demonstration.
Service message comprises sign and text message; Text message comprises the broadcasted content in the broadcast.
Receiving element 42 also is used for receiving the message of going off the air, to stop to send service message to OBU;
Wherein, comprise the broadcast sequence number in the described message of going off the air.
Embodiment 12
In some optional embodiments, the equipment that provides a kind of transport information to propagate.Figure 13 is the structural representation of a kind of roadside unit management entity RME of providing of the embodiment of the invention.As shown in figure 13, this equipment comprises:
Receiving element 5 is used for receiving the fault warning information that RSU reports;
Processing unit 52 is used for carrying out fault restoration according to fault warning information, and/or notifies other RSU to handle.
Optionally, fault warning information is the equipment fault warning information, comprises following one or more:
RSUID, fault time, failure code, maintenance call and additional message.
Embodiment 13
In some optional embodiments, the equipment that provides a kind of transport information to propagate.Figure 14 is the structural representation of a kind of Service Control Gateway SCG of providing of the embodiment of the invention.As shown in figure 14, this equipment comprises:
Detecting unit 61 is for detection of traffic conditions;
Transmitting element 62 is used for when detecting traffic conditions, and reporting service information is given Service Control Gateway SCG.
Optionally, described business information comprises following one or more:
Business hours, service code, additional information; Wherein, service code is used for following one or more of expression:
Rear-end collision, vehicle enter isolation strip, ring road accident or ring road blocks up and overspeed of vehicle.
Embodiment 14
In some optional embodiments, the equipment that provides a kind of transport information to propagate.Figure 15 is the structural representation of a kind of Service Control Gateway SCG of providing of the embodiment of the invention.As shown in figure 15, this equipment comprises:
Receiving element 71 is used for receiving the business information that roadside unit RSU reports;
Processing unit 72 is used for business information is handled accordingly.
Optionally, business information comprises following one or more:
Business hours, service code, additional information; Wherein, service code is used for following one or more of expression:
Rear-end collision, vehicle enter isolation strip, ring road accident or ring road blocks up and overspeed of vehicle.
The scheme that adopts the embodiment of the invention to provide, when emergency appears in equipment, behind the notice access point, do not need to send to core net, but directly handled by access point, and be broadcast to the OBU of this residential quarter, and be broadcast to other OBU by the access point of core net by periphery, make this residential quarter OBU or access point according to fault warning information broadcasting can in time take emergency measures, thereby guaranteed the urgency of time, time delay is little, and access point has been shared data and has been handled the work of namely transmitting, core net to take resource few, and can be broadcast to a plurality of OBU simultaneously, compare existing clean culture and give OBU, coverage is bigger.
Unless otherwise specific statement, term such as processing, calculating, computing, determine, show etc. that action and/or the process that can refer to one or more processing or computing system or similar devices, described action and/or process will be expressed as the data manipulation of the register for the treatment of system or the amount of the physics (as electronics) in the memory device and be converted into other data of the interior physical quantity of the memory device, register or other this type of information storages, emission or the display device that are expressed as treatment system similarly.Information can be used multiple different technology and any expression the in the method with signal.For example, data, instruction, order, information, signal, bit, symbol and the chip of mentioning in the description on run through can be represented with voltage, electric current, electromagnetic wave, magnetic field or particle, light field or particle or its combination in any.
Should be understood that the particular order of the step in the disclosed process or the example that level is illustrative methods.Based on design preference, should be appreciated that the particular order of the step in the process or level can be rearranged under the situation that does not break away from protection range of the present disclosure.Appended claim to a method has provided the key element of various steps with exemplary order, and is not to be limited to described particular order or level.
In above-mentioned detailed description, various features are combined in the single embodiment together, to simplify the disclosure.This open method should be interpreted as reflecting such intention, that is, and the more feature of feature that the embodiment of theme required for protection need clearly be stated in each claim.On the contrary, as appending claims reflected, the present invention was in the state that lacks than whole features of disclosed single embodiment.Therefore, appending claims clearly is merged in the detailed description hereby, and wherein every claim is alone as the independent preferred embodiment of the present invention.
Those skilled in the art it is also understood that various illustrative box, module, circuit and the algorithm steps in conjunction with the embodiment description of this paper all can be embodied as electronic hardware, computer software or its combination.For the interchangeability between the hardware and software clearly is described, above various illustrative parts, frame, module, circuit and step have all been carried out usually describing around its function.Be embodied as hardware or be embodied as software as for this function, depend on specific application and the design constraint that whole system is applied.Those skilled in the art can be at each application-specific, realizes described function in the mode of accommodation, and still, this realization decision-making should not be construed as and deviates from protection range of the present disclosure.
Software module or its combination that can directly be presented as hardware, be carried out by processor in conjunction with the step of the described method of the embodiment of this paper or algorithm.Software module can be arranged in the storage medium of RAM memory device, flash memory, ROM memory device, EPROM memory device, EEPROM memory device, register, hard disk, mobile disk, CD-ROM or any other form well known in the art.A kind of exemplary storage medium is connected to processor, thereby makes the processor can be from this read information, and can write information to this storage medium.Certainly, storage medium also can be the part of processor.Processor and storage medium can be arranged in ASIC.This ASIC can be arranged in user terminal.Certainly, processor and storage medium also can be used as discrete assembly and are present in the user terminal.
Realize that for software the technology of describing among the application can realize with the module (for example, process, function etc.) of carrying out the described function of the application.These software codes can be stored in the memory device unit and be carried out by processor.The memory device unit can be implemented in the processor, also can be implemented in outside the processor, and under latter event, it is coupled to processor via various means with communication mode, and these all are well known in the art.
Description above comprises giving an example of one or more embodiment.Certainly, all possible combination of describing parts or method in order to describe above-described embodiment is impossible, but those of ordinary skills should be realized that each embodiment can do further combinations and permutations.Therefore, the embodiment that describes herein is intended to contain all the such changes, modifications and variations in the protection range that falls into appended claims.In addition, " comprise " with regard to the term that uses in specification or claims, the mode that contains of this word is similar to term and " comprises ", just as " comprising, " in the claims as link word explain like that.In addition, using any one term " perhaps " in the specification of claims is to represent " non-exclusionism or ".
Claims (39)
1. the method that transport information is propagated is characterized in that, comprising:
When emergency appearred in vehicle, board units OBU reported corresponding fault warning information and aid request to give roadside unit RSU;
Described RSU is broadcast to described fault warning information one or more OBU of this residential quarter.
2. the method for claim 1 is characterized in that, described fault warning information comprises: equipment fault warning information and/or traffic failure warning information;
Described traffic failure warning information comprises one or more in following: OBUID, fault time, message sequence number, failure code, state, longitude, latitude, height and additional message.
3. method as claimed in claim 2 is characterized in that, described failure code is used for the expression fault type, this fault type comprise following one or more:
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
4. the method that transport information is propagated is characterized in that, comprising:
When emergency appearred in vehicle, board units OBU reported corresponding fault warning information and aid request to give Service Control Gateway SCG;
Described SCG sends to one or more roadside unit RSU with described fault warning information and aid request;
Receive that the RSU of described fault warning information is broadcast to described fault warning information one or more OBU of this residential quarter.
5. method as claimed in claim 4 is characterized in that, described fault warning information is the traffic failure warning information, specifically comprises following one or more:
OBUID, fault time, state, longitude, latitude, highly, failure code and additional message.
6. method as claimed in claim 5 is characterized in that, described failure code is used for the expression fault type, this fault type comprise following one or more:
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
7. method as claimed in claim 4, it is characterized in that, described SCG sends to all RSU with broadcast mode with described fault warning information and aid request, or in the multicast mode described fault warning information and aid request are sent to the relevant RSU of a part, or in the mode of clean culture described fault warning and aid request information are sent to a relevant RSU.
8. the method that transport information is propagated is characterized in that, comprising:
Service Control Gateway SCG sends broadcast to one or more roadside unit RSU;
Described RSU periodically is broadcast to service message one or more board units OBU of this residential quarter according to described broadcast.
9. method as claimed in claim 8 is characterized in that, described broadcast comprises one or more in following:
Broadcast sequence number, broadcast cycle information, broadcasting zero-time, off-the-air time, sign and broadcasted content;
Described sign is used for the demonstration of expression OBU display, OBU broadcasts and reads or the advertisement screen demonstration.
10. method as claimed in claim 9 is characterized in that, described service message comprises sign and text message;
Described text message comprises described broadcasted content.
11. method as claimed in claim 8, it is characterized in that, described SCG sends to all RSU with broadcast mode with described broadcast, or in the multicast mode described broadcast is sent to the relevant RSU of a part, or in the mode of clean culture described broadcast is sent to a relevant RSU.
12. method as claimed in claim 8 is characterized in that, also comprises:
Described SCG sends and goes off the air message to described RSU, is used for stopping described RSU and sends service message to OBU;
Wherein, the described message of going off the air comprises the broadcast sequence number, is used for this broadcast of mark.
13. the method that transport information is propagated is characterized in that, comprising:
When roadside unit RSU broke down, described RSU reported fault warning information to roadside unit management entity RME;
Described RME carries out fault restoration according to fault warning information, and/or notifies other RSU to handle;
Described RME preserves warning information.
14. method as claimed in claim 13 is characterized in that, described fault warning information is the equipment fault warning information, comprises following one or more:
RSUID, fault time, failure code, maintenance call and additional message.
15. the method that transport information is propagated is characterized in that, comprising:
When roadside unit RSU detected traffic conditions, the RSU reporting service information was given Service Control Gateway SCG;
Described SCG preserves described business information.
16. method as claimed in claim 15 is characterized in that, also comprises:
Described SCG sends to other one or more RSU with described business information;
Receive that the RSU of described business information is broadcast to described business information one or more OBU of this residential quarter again.
17. method as claimed in claim 15 is characterized in that, described business information comprises following one or more:
Business hours, service code and additional information; Wherein, described service code is used for following one or more of expression:
Rear-end collision, vehicle enter isolation strip, ring road accident or ring road blocks up and overspeed of vehicle.
18. a board units roadside unit RSU is characterized in that, comprising:
Receiving element is used for receiving fault warning information and the aid request that board units OBU reports;
Transmitting element is for the one or more OBU that described fault warning information are broadcast to this residential quarter.
19. RSU as claimed in claim 18 is characterized in that, described fault warning information is equipment fault warning information and/or traffic failure warning information; Described traffic failure warning information comprises one or more in following:
OBUID, fault time, message sequence number, failure code, state, longitude, latitude, height and additional message.
20. RSU as claimed in claim 19 is characterized in that, described failure code is used for the expression fault type, this fault type comprise following one or more:
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
21. a Service Control Gateway SCG is characterized in that, comprising:
Receiving element is used for receiving fault warning information and the aid request that OBU reports;
Transmitting element is used for described fault warning information and aid request are sent to one or more RSU, so that described RSU is broadcast to described fault warning information one or more OBU of this residential quarter.
22. SCG as claimed in claim 21 is characterized in that, described fault warning information is equipment fault warning information and/or traffic failure warning information; Described traffic failure warning information comprises following one or more:
OBUID, fault time, state, longitude, latitude, highly, failure code and additional message.
23. SCG as claimed in claim 22 is characterized in that, described failure code is used for the expression fault type, this fault type comprise following one or more:
Normally, blow out, can't startup, brake failure, the place ahead get into an accident, visibility is very low, the road surface is very sliding, need to slow down, road ahead by construction take, road damages, need to slow down, bridge caves in, road interrupts, mud-rock flow is arranged, flood, obstacle, self-defined alarm, traffic sign damage, highway have bicycle to travel, the occupant needs medical assistance and highway on parking violation.
24. SCG as claimed in claim 21, it is characterized in that, described transmitting element sends to all RSU with broadcast mode with described fault warning information and aid request, or in the multicast mode described fault warning information and aid request are sent to the relevant RSU of a part, or in the mode of clean culture described fault warning information and aid request are sent to a relevant RSU.
25. a Service Control Gateway SCG is characterized in that, comprising:
Generation unit is used for generating broadcast;
Transmitting element is used for sending described broadcast to one or more RSU, so that RSU periodically is broadcast to service message one or more OBU of this residential quarter.
26. SCG as claimed in claim 25 is characterized in that, described broadcast comprises one or more in following:
Broadcast sequence number, broadcast cycle, broadcasting zero-time, off-the-air time, sign and broadcasted content;
Wherein, described sign is used for the demonstration of expression OBU display, OBU broadcasts and reads or the advertisement screen demonstration.
27. SCG as claimed in claim 26 is characterized in that, described service message comprises sign and text message; Wherein, described text message comprises described broadcasted content.
28. SCG as claimed in claim 25, it is characterized in that, described transmitting element sends to all RSU with broadcast mode with described broadcast message, or in the multicast mode described broadcast message is sent to the relevant RSU of a part, or in the mode of clean culture described broadcast message is sent to a relevant RSU.
29. SCG as claimed in claim 25 is characterized in that, described transmitting element also is used for sending going off the air message to described RSU, sends described service message to OBU to stop RSU;
Wherein, the described message of going off the air comprises the broadcast sequence number.
30. a board units roadside unit RSU is characterized in that, comprising:
Receiving element is used for receiving the broadcast that SCG sends;
Transmitting element is used for according to described broadcast, service message periodically is broadcast to one or more OBU of this residential quarter.
31. RSU as claimed in claim 30 is characterized in that, described broadcast also comprises one or more in following:
Broadcast sequence number, broadcast cycle, broadcasting zero-time, off-the-air time, sign and broadcasted content; Described sign is used for the demonstration of expression OBU display, OBU broadcasts and reads or the advertisement screen demonstration.
32. RSU as claimed in claim 31 is characterized in that, described service message comprises sign and text message;
Described text message comprises described broadcasted content.
33. RSU as claimed in claim 30 is characterized in that, described receiving element also is used for receiving the message of going off the air, to stop to send described service message to OBU;
Wherein, the described message of going off the air comprises the broadcast sequence number.
34. a roadside unit management entity RME is characterized in that, comprising:
Receiving element is used for receiving the fault warning information that roadside unit RSU reports;
Processing unit is used for carrying out fault restoration according to fault warning information, and/or notifies other RSU to handle.
35. RME as claimed in claim 34 is characterized in that, described fault warning information is the equipment fault emergence message, comprises following one or more:
RSUID, fault time, failure code, maintenance call and additional message.
36. a roadside unit RSU is characterized in that, comprising:
Detecting unit is for detection of traffic conditions;
Transmitting element is used for when detecting traffic conditions, and reporting service information is given Service Control Gateway SCG.
37. RSU as claimed in claim 36 is characterized in that, described business information comprises following one or more:
Business hours, service code, additional information; Wherein, described service code is used for following one or more of expression:
Rear-end collision, vehicle enter isolation strip, ring road accident or ring road blocks up and overspeed of vehicle.
38. a Service Control Gateway SCG is characterized in that, comprising:
Receiving element is used for receiving the business information that roadside unit RSU reports;
Processing unit is used for described business information is handled accordingly.
39. SCG as claimed in claim 38 is characterized in that, described business information comprises following one or more:
Business hours, service code, additional information; Wherein, described service code is used for following one or more of expression:
Rear-end collision, vehicle enter isolation strip, ring road accident or ring road blocks up and overspeed of vehicle.
Priority Applications (1)
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| CN 201310049868 CN103259834A (en) | 2012-11-19 | 2013-02-07 | Method and equipment for spreading traffic information |
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| CN201210469655.4 | 2012-11-19 | ||
| CN 201310049868 CN103259834A (en) | 2012-11-19 | 2013-02-07 | Method and equipment for spreading traffic information |
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| CN 201310044811 Pending CN103237293A (en) | 2012-11-19 | 2013-02-04 | Method and device for sending and receiving messages |
| CN201310049916.1A Active CN103259837B (en) | 2012-11-19 | 2013-02-07 | Roadside unit cut-in method, system and device |
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| CN 201310049868 Pending CN103259834A (en) | 2012-11-19 | 2013-02-07 | Method and equipment for spreading traffic information |
| CN 201310049886 Pending CN103259835A (en) | 2012-11-19 | 2013-02-07 | On board unit accessing method system and device |
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| CN201310049916.1A Active CN103259837B (en) | 2012-11-19 | 2013-02-07 | Roadside unit cut-in method, system and device |
| CN 201310049909 Pending CN103259836A (en) | 2012-11-19 | 2013-02-07 | Method and device for querying traffic information |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103259837B (en) | 2018-11-09 |
| CN103259776A (en) | 2013-08-21 |
| CN103259837A (en) | 2013-08-21 |
| CN103259835A (en) | 2013-08-21 |
| CN103259836A (en) | 2013-08-21 |
| CN103237293A (en) | 2013-08-07 |
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