Vehicle-mounted system and communication method thereof

Abstract

The invention relates to a vehicle-mounted system and a communication method thereof. The vehicle-mounted system comprises a first unit, a second unit and a third unit, wherein the first unit is used for generating a wake-up signal by confirming a roadside device with a server according to a received trigger signal; and the second unit is used for being awakened according to the received awakening signal so as to execute communication operation with the roadside device. According to the vehicle-mounted system, after the trigger signal sent by the trigger source is obtained, the trigger source is confirmed to be the effective roadside device through the server so as to send the awakening signal to awaken the second unit, so that the second unit is awakened according to needs, abnormal awakening of the second unit is avoided, and the problem of rapid power consumption is solved.

Description

technical field [0001] The present disclosure generally relates to the technical field of vehicle electronic equipment. Specifically, the present disclosure relates to an in-vehicle system and a communication method thereof. Background technique [0002] This section is intended to provide a background or context for implementations of the invention that are recited in the claims. The descriptions herein may include concepts that could be explored, but not necessarily concepts that have been previously thought of or explored. Therefore, unless otherwise indicated herein, what is described in this section is not prior art to the description and claims in this application and is not admitted to be prior art by inclusion in this section. [0003] With the rapid development of intelligent traffic management technology, in order to realize non-stop quick toll collection, reduce congestion, and facilitate the masses, the toll stations at the provincial boundaries of the national...

AI Technical Summary

Problems solved by technology

In the actual application environment of the OBU, there may be wake-up sources with different frequency bands and different signal strengths. These wake-up sources continuously transmit radio frequency signals to the outside world. However, these radio frequency signals are not emitted by the RSU and belong to wrong OBU wake-up signals (also called False wake-up signals), the OBU will perform frequent false wake-ups under the action of these false wake-up signals, resulting in a sharp consumption of OBU power, which greatly reduces the service life of the OBU

This situation is especially serious when there is a false wake-up source with a strong signal at the parking place of the vehicle, especially in traffic jams. Frequent wake-ups and transactions will affect the service life of the OBU battery

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