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Vehicle travelling state broadcasting method and apparatus, and vehicle-mounted terminal

A technology of driving status and vehicle driving, applied in the field of Internet of Vehicles, can solve the problems of not being able to adapt to the high-speed movement of vehicle nodes, high packet loss rate and information delay, increasing channel load, etc., to reduce communication channel load, The effect of reducing the packet loss rate and reducing the probability of channel congestion

Active Publication Date: 2018-01-26
东软集团(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current information broadcasting mechanism in the Internet of Vehicles cannot well adapt to the characteristics of high-speed movement and frequent changes of vehicle nodes.
For example, in the case of dense nodes (such as traffic congestion), the use of a fixed broadcast period will increase the channel load, and a large number of broadcast conflicts will occur, resulting in a higher packet loss rate and information delay

Method used

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  • Vehicle travelling state broadcasting method and apparatus, and vehicle-mounted terminal
  • Vehicle travelling state broadcasting method and apparatus, and vehicle-mounted terminal
  • Vehicle travelling state broadcasting method and apparatus, and vehicle-mounted terminal

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0064] see figure 1 , which is a flowchart of the first embodiment provided by the present invention.

[0065] The vehicle driving state broadcasting method provided in this embodiment specifically includes the following steps:

[0066] S101: Determine whether the driving state of the vehicle is stable, if not, execute S102, and if yes, execute S103.

[0067] It can be understood that judging whether the driving state of the vehicle is stable can be judged by the speed, acceleration and angular velocity.

[0068] For example, the driving state of a vehicle that starts quickly or is in a sharp turn is not stable. For a vehicle running at high speed, such as a vehicle driving on a highway, even if its acceleration and angular velocity change slightly, the driving state of the vehicle will change greatly, so the driving state of this type of vehicle is also an unstable state .

[0069] It can be understood that the driving state of the vehicle running uniformly at a relativel...

no. 2 example

[0094] In the first embodiment, it is determined whether the driving state of the vehicle is stable according to S101 to determine an appropriate broadcast period for the vehicle. In this embodiment, a specific method for judging whether the driving state of the vehicle is stable is introduced.

[0095] see figure 2 , which is a flowchart of the second embodiment provided by the present invention.

[0096] The vehicle running state broadcasting method provided in this embodiment includes the following steps:

[0097] Judging whether the running state of the vehicle is stable or not, specifically includes the following S201-S203.

[0098] S201: Collect the acceleration, angular velocity and velocity of the vehicle.

[0099] During the driving process of the vehicle, the acceleration, angular velocity and velocity of the vehicle are important parameters to characterize the driving stability of the vehicle. The speed of the vehicle with high acceleration changes rapidly, and ...

no. 3 example

[0126] This embodiment introduces a specific method for judging that the vehicle is in a slow-moving state on the basis of the second embodiment.

[0127] see image 3 , which is a flowchart of the third embodiment provided by the present invention.

[0128] The vehicle driving state broadcasting method provided in this embodiment specifically includes the following steps:

[0129] Judging whether the running state of the vehicle is stable, specifically includes S301 and S302.

[0130] S301: Collect the acceleration, angular velocity and velocity of the vehicle.

[0131]S302: Determine whether the driving state of the vehicle is stable according to the acceleration, angular velocity and speed, if not, execute S303, and if yes, execute S304.

[0132] It can be understood that during the driving process of the vehicle, the acceleration, angular velocity and velocity of the vehicle are important parameters to characterize the driving stability of the vehicle. Whether the driv...

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Abstract

The invention discloses a vehicle travelling state broadcasting method and apparatus, and a vehicle-mounted terminal. The vehicle travelling state broadcasting method is applied to Internet of Vehicles vehicle state broadcasting, and the method comprises the following steps: judging whether the travelling state of a vehicle is stable; if it is judged that the travelling state of the vehicle is notstable, performing vehicle information broadcasting at a first preset broadcasting period T; if it is judged that the travelling state of the vehicle is stable, continuing to judge whether the vehicle is in a slow travelling state; when it is judged that the vehicle is in the slow travelling state, judging whether the vehicle is continuously in the slow travelling state according to a preset judgment period, and if so, gradually prolonging the broadcasting period until to a first broadcasting period upper limit T1max, and if it is judged that the travelling state of the vehicle is not stableat the preset judgment period, performing vehicle information broadcasting at the first preset broadcasting period T, wherein T1max is greater than T1. The broadcasting period can be adjusted in timewhen the travelling state of the vehicle changes, thereby reducing the communication channel load, reducing the probability of channel blockage, reducing the packet loss rate and shortening the information delay.

Description

technical field [0001] The present invention relates to the technical field of Internet of Vehicles, in particular to a method, device and vehicle-mounted terminal for broadcasting vehicle driving status. Background technique [0002] Internet of Vehicles (IOV, Internet of Vehicles) is a huge interactive network composed of information such as vehicle location, speed and route. Vehicles complete the collection of their own environment and status information through devices such as Global Positioning System (GPS, Global Positioning System), Radio Frequency Identification (RFID, Radio Frequency Identification), sensors and image processing; The information is transmitted to the central processing unit; through computer technology, a large number of vehicle information can be analyzed and processed, so as to calculate the best route for different vehicles, report road conditions in time, and arrange signal light cycles, etc. [0003] The Internet of Vehicles enables vehicles w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/46H04W4/06H04W72/12
Inventor 孟扬施洋
Owner 东软集团(北京)有限公司
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