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Inter-vehicle information sharing method and device based on contents

An information sharing and content technology, applied in the field of information communication, can solve the problems of data flooding and inability to assign different priorities to different information, so as to improve efficiency and solve the effect of multi-vehicle real-time communication

Active Publication Date: 2016-06-29
FUZHOU HUAYING HEAVY IND MACHINERY
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The traditional 802.11 protocol cannot give different priorities to different information in the application program, which eventually leads to important and urgent information related to driving judgment being overwhelmed by some irrelevant, unimportant or invalid data

Method used

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  • Inter-vehicle information sharing method and device based on contents
  • Inter-vehicle information sharing method and device based on contents
  • Inter-vehicle information sharing method and device based on contents

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Embodiment Construction

[0029] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.

[0030] The inter-vehicle information sharing protocol authorizes vehicles to request and obtain sensing information from other vehicles or static installations, similar to obtaining their own sensing information. The inter-vehicle information sharing protocol adopts a content-based design, in which the area information along the driving route is given the first priority. In the inter-vehicle information sharing protocol system, cars can request real-time data streams of 3D point clouds from specific areas along the road. The resolution of these information can be different. A coarse resolution represents a large area, and a finer resolution Indicates a small area.

[0031] The inter-vehicle information sharing protocol mainly has thr...

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PUM

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Abstract

The invention provides an inter-vehicle information sharing method and a device based on contents. The method comprises following steps of / that information transmission requesting of a wireless transmission node monitoring region; according to frequency of request and quality of region information, distributing different bandwidths for different region space in proportion; and according to the bandwidths, randomly extracting data packages from the different region space and then transmitting the data packages. According to the invention, a multiresolution system is used for naming and obtaining region information of a road, so transmitted data size is adjusted according usable bandwidths; MAC layer protocols are improved; there are no wireless bandwidth competitions among nodes any longer but competitions among road regions; a wireless bandwidth distributed to any one region depends on the number of automobiles interesting in the region; efficiency of a traditional communication method is increased; and a difficulty in multi-vehicle real-time communication is solved.

Description

technical field [0001] The invention relates to the field of information communication, in particular to a content-based inter-vehicle communication method. Background technique [0002] Self-driving cars need to deal with changing external environments and potential emergencies (such as: moving people and objects, road construction and accidents), so they need to know detailed real-time information about their surroundings, usually using laser ranging sensors etc. to discover nearby objects and use 3D point clouds to represent environmental information. If only the information obtained by the on-board sensors carried by the car itself is used to calculate the driving path, it will be impossible to find hidden objects outside the line of sight (such as: a child running out of the corner, driving out of a car that is blocking the convoy), in order not to restrict the self-driving car Therefore, an inter-vehicle information sharing protocol is needed. The traditional 802.11 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04W28/04H04W48/10H04W84/18
CPCH04L67/10H04L67/12H04W48/10H04W74/085H04W84/18H04L67/5651
Inventor 潘晨劲赵江宜
Owner FUZHOU HUAYING HEAVY IND MACHINERY
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