Vehicle-mounted unit control method and system, storage medium and electronic device

Abstract

The invention provides a vehicle-mounted unit control method and system, a storage medium and an electronic device, and the method comprises the steps: determining a target distance value between a roadside unit and a second roadside unit set under the condition that the transfer of a virtual resource corresponding to a first vehicle is completed through a first roadside unit, wherein the second road side unit set is a set composed of at least one second road side unit located behind the first road side unit in the vehicle driving direction corresponding to the first road side unit; determining a target duration according to the target distance value; and sending a first control command to a first vehicle-mounted unit of the first vehicle, wherein the first control command is used for indicating the first vehicle-mounted unit to be switched to the target state and keep the target state within the target duration, and the first vehicle-mounted unit is not awakened in the target state. According to the invention, the technical problem of high power consumption of the vehicle-mounted unit in the process of passing through the road side unit in the prior art can be solved.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a control method and system for a vehicle-mounted unit, a storage medium and an electronic device. Background technique [0002] In the highway system, the speed of vehicles under high-speed free flow is much higher than that at the entrance or exit of the Electronic Toll Collection (ETC) lane. In order to increase the transaction success rate of ETC gantry free flow , the signal coverage area of ​​the gantry road side unit (Road Side Unit, referred to as RSU) antenna is generally set to about 80 meters, and the wake-up sensitivity of the on board unit (referred to as OBU) is generally about -45dBm ~ 52dBm , usually when the transmit power of the RSU antenna is turned on to the maximum, combined with the adjustment of the antenna pitch angle, the signal coverage area of ​​80m can be achieved. The OBU wake-up sensitivity of some manufacturers is relatively high, and the wake...

AI Technical Summary

Problems solved by technology

On the one hand, if the OBU transaction is successful and does not drive out of the coverage area of ​​the antenna signal, the RSU antenna will continue to send the Beacon Service Table (BST) signal that does not change the Beacon ID of the Beacon Service Table, and the OBU will continue to repeat Entering the wake-up-recognition BST-sleep state increases the power consumption of the OBU; on the other hand, after the RSU antenna on the gantry fails to communicate with other OBUs, it usually causes the BeaconID in the signal transmitted by the antenna to change. After an OBU transaction is successful and does not drive out of the antenna signal coverage area, the antenna will continue to send the BST that changes the BeaconID, which will cause the OBU to continue to reply to the signal, and the RSU antenna will refuse to reply to the OBU because it believes that the OBU has been successfully traded. This results in the same situation as when the OBU first entered the coverage area of ​​the RSU antenna, that is, the OBU continuously replies the same signal to the RSU antenna

[0004] And, when a vehicle with an OBU is installed in a traffic jam under the ETC gantry area, because the OBU under the ETC gantry area sends too many signals, the risk of transaction failure between the RSU and the OBU will increase, and when the OBU transaction fails, usually It will cause the BeaconID in the BST signal sent by the RSU antenna to change. Therefore, when the OBU with a successful transaction receives a BST signal different from the BeaconID at the time of the successful transaction, the OBU will continue to reply to the VST signal, which intensifies the traffic jam during the entire process. Signal confusion, which in turn increases the probability of more OBU transaction failures

[0005] Therefore, in related technologies, the OBU under the ETC gantry area will have a high power consumption state before and after the transaction, which greatly affects the service life of the OBU; in addition, the OBU arrives at the next gantry or before the exit after leaving the current RSU antenna area. There is also the case of being falsely awakened by an interference signal, and frequent false awakening of the OBU will also increase the power consumption of the OBU, thereby reducing the life of the OBU

[0006] In the related art, no effective technical solution has been proposed for the technical problem that the vehicle-mounted unit consumes high power when passing the roadside unit

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