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Method and equipment for spreading traffic information

A technology for traffic information and alarm information, applied in the field of traffic information dissemination, can solve the problems of wasting access point and vehicle platform bandwidth resources, time-consuming, and core network resources occupying a lot of resources.

Inactive Publication Date: 2013-08-21
BEIJING NUFRONT MOBILE MULTIMEDIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are at least the following problems in the prior art: when there is a fault in the vehicle-mounted platform equipment in the prior art, it is usually necessary to forward the fault or emergency information to the core network through the access point, and the core network notifies each access point after processing it, and then sends a unicast The method is forwarded to other vehicle-mounted platform devices one by one, so the notification is not timely enough, the delay is large, the time is long, and the resources of the core network are too much.
When emergency information or periodic broadcast services need to be broadcast within the coverage of the access point, but the access point does not process the service data, it will waste bandwidth resources between the access point and the vehicle platform, and access Bandwidth resources between point and core network

Method used

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  • Method and equipment for spreading traffic information
  • Method and equipment for spreading traffic information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0142] In some optional embodiments, a method for disseminating traffic information is provided. figure 2 It is a schematic flowchart of a method for disseminating traffic information provided in Embodiment 1 of the present invention. Such as figure 2 As shown, the method includes the following steps:

[0143] Step S101, when the vehicle has an emergency failure (or the OBU itself fails), the OBU reports the corresponding failure warning information and rescue request to the RSU.

[0144] The failure warning information includes equipment failure warning information and / or service failure warning information.

[0145] It is used to send the fault warning information and rescue request to the RSU when the fault of the OBU affects the operation of surrounding vehicles. The format of the message is shown in Table 1:

[0146] Table 1

[0147]

[0148] Table 2

[0149]

[0150]

[0151] table 3

[0152] bit

state

0

reserve

1

0: ...

Embodiment 2

[0161] In some optional embodiments, a method for disseminating traffic information is provided. image 3 It is a schematic flowchart of a method for disseminating traffic information provided in Embodiment 1 of the present invention. Such as image 3 As shown, the method includes the following steps:

[0162] Step 201, when the vehicle has an emergency failure (or the OBU itself fails), the OBU sends a failure warning message and a rescue request to the SCG, and can request rescue.

[0163] The fault alarm information is equipment fault alarm information and / or service fault alarm information.

[0164] OBU sends this message to SCG when the vehicle breaks down or needs rescue. The format of the message body is shown in Table 5:

[0165] table 5

[0166]

[0167]

[0168] In step 202, the SCG sends the fault warning information and rescue request to one or more RSUs in a broadcast, multicast or unicast manner.

[0169] The failure warning information is equipment f...

Embodiment 3

[0176] In some optional embodiments, a method for disseminating traffic information is provided. Figure 4 It is a schematic flowchart of a method for disseminating traffic information provided in Embodiment 1 of the present invention. Such as Figure 4 As shown, the method includes the following steps:

[0177] Step S301, when the vehicle fails (or the OBU itself fails), the OBU sends failure warning information and a rescue request to the RSU and SCG.

[0178] The failure alarm emergency information is equipment failure alarm information and / or service failure alarm information.

[0179] For fault information, refer to Table 1, Table 2 and Table 3 of Embodiment 2.

[0180] In step S302, the RSU broadcasts the fault warning information to one or more OBUs in the cell.

[0181] For emergency information, see Table 4, Table 2 and Table 3 of Example 2.

[0182] In step S303, the SCG sends the fault warning information and rescue request to other RSUs in a broadcast, multica...

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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

[0001] This application claims that the application date is November 19, 2012, the application number is 201210469655.4, and the title of the invention is an intelligent transportation system and its management method. reflected in this application. technical field [0002] The invention belongs to the field of intelligent transportation, and in particular relates to a method and equipment for disseminating traffic information. Background technique [0003] In the existing transportation field, intelligent transportation system has been widely used. Intelligent transportation is a transportation-oriented service system based on modern electronic information technology. Its outstanding feature is to provide diverse services for traffic participants with the collection, processing, release, exchange, analysis, and utilization of information as the main line. Intelligent Transportation System (Intelligent Transportation System, referred to as ITS) is the development direction...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04H20/55G08G1/00
Inventor 阎德升侯珑斐闫立彬鲍东山
Owner BEIJING NUFRONT MOBILE MULTIMEDIA TECH
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