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A multi-channel precise synchronization method for vehicle-mounted wireless networks

A vehicle-mounted wireless, multi-channel technology, applied in vehicle wireless communication services, wireless communication, vehicle-mounted communication and other directions, can solve the problems of emergency information cannot be transmitted synchronously in time, communication interference, traffic accidents, etc.

Active Publication Date: 2022-03-22
RES INST OF HIGHWAY MINIST OF TRANSPORT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the existing vehicular ad hoc network uses wireless communication technology, since the frequency band of wireless communication is shared, it is easy to cause communication interference when wireless communication is performed between multiple devices, which may cause emergency information to not be transmitted synchronously in time. And then cause serious traffic accidents and other problems, therefore, there is an urgent need for a method of synchronously transmitting emergency information in real time no matter what the circumstances

Method used

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  • A multi-channel precise synchronization method for vehicle-mounted wireless networks
  • A multi-channel precise synchronization method for vehicle-mounted wireless networks
  • A multi-channel precise synchronization method for vehicle-mounted wireless networks

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Embodiment Construction

[0055] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0056] An embodiment of the present invention provides a multi-channel precise synchronization method for a vehicle-mounted wireless network, such as Figure 1 to Figure 3 As shown, the method includes the following steps:

[0057] S100, pre-setting an early warning frequency band based on the vehicle wireless control system; the early warning frequency band is an infrequently used frequency band reserved through a protocol in the vehicle wireless communication;

[0058] S200, setting the wireless transmission mode between the vehicle-mounted wireless control system and the wireless terminal device as a common frequency band in vehicle-mounted wireless communication...

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Abstract

The invention discloses a multi-channel precise synchronization method of a vehicle-mounted wireless network, comprising: pre-setting an early warning frequency band based on a vehicle-mounted wireless control system; The wireless transmission mode between the vehicle-mounted wireless control system and the wireless terminal equipment is set as a common frequency band in vehicle-mounted wireless communication for information transmission; when an emergency occurs, the early warning signal is transmitted through the early warning frequency band and the vehicle-mounted wireless control system. Information is transmitted synchronously. While ensuring the synchronous transmission of information between the wireless terminal equipment and the vehicle wireless control system, it is ensured that in an emergency, the emergency signal can be transmitted through the early warning frequency band, avoiding the congestion caused by other wireless terminal equipment during the wireless communication process. Emergency signals cannot be transmitted in real time, causing serious traffic accidents and other problems.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a multi-channel precise synchronization method for a vehicle-mounted wireless network. Background technique [0002] With the vigorous development of the cycling industry, urban traffic congestion, road traffic accidents and road traffic safety in bad weather have become problems to be solved urgently. As an important component of intelligent transportation system, vehicle-mounted ad hoc network is proposed under this background, which becomes the key to ensure driving safety and improve traffic efficiency. Vehicle ad hoc is an ad hoc network that applies wireless communication technology to inter-vehicle communication. It is of great significance for the development of mobile communication, the improvement of vehicle information automation, the reduction of traffic accidents, and the improvement of road traffic safety. [0003] The vehicle self-organizing network...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W4/48H04W4/80H04W4/90H04W56/00
CPCH04W4/48H04W4/80H04W4/90H04W56/00
Inventor 董轩周炜刘应吉晋杰
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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