The embodiment of the invention discloses a low-speed early warning method for a highway lane level, and the method comprises the steps: firstly determining a target vehicle whose driving speed is smaller than a first speed, and the first speed is the lowest speed limit of a first lane where the target vehicle is located; determining a second speed, wherein the second speed is the lowest safe speed of the first lane; if the ratio of the second speed to the first speed is greater than or equal to a first preset value and the current vehicle speed is greater than or equal to the first speed, guiding the target vehicle to accelerate; when the current vehicle speed is smaller than the first speed, reminding the target vehicle to be at a low speed and guiding the target vehicle to change lanes; if the ratio of the second speed to the first speed is smaller than a first preset value, a third speed is determined, and the third speed is the lowest safe speed of a lane adjacent to the first lane; if the ratio of the third speed to the fourth speed is larger than or equal to the first preset value, the target vehicle is reminded to be at the low speed and guided to change the lane, and the fourth speed is the lowest speed limit of the adjacent lane. According to the invention, missed punishment or wrong punishment of low-speed driving vehicles can be avoided.
本发明实施例公开了高速公路车道级的低速预警方法,先确定行驶速度小于第一速度的目标车辆,第一速度为目标车辆所在的第一车道的最低限速;确定第二速度,第二速度为第一车道的最低安全速度;若第二速度与第一速度的比值大于等于第一预设值:当前车速度大于等于第一速度时,引导目标车辆加速;当前车速度小于第一速度时,提醒目标车辆处于低速并引导目标车辆变道;若第二速度与第一速度的比值小于第一预设值,确定第三速度,第三速度为第一车道的相邻车道的最低安全速度;若第三速度与第四速度的比值大于等于第一预设值,提醒目标车辆处于低速并引导目标车辆变道,第四速度为相邻车道的最低限速。本申请可以避免漏罚或错罚低速行驶的车辆。
Expressway lane level low-speed early warning method, memory, server and system
高速公路车道级的低速预警方法、存储器、服务器及系统
2023-08-08
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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