A control method and system for expressway lane signal lights using plane perception technology
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A technology of lane signal light and perception technology, which is applied in the field of expressway lane signal light control method and system, and can solve problems such as inability to
Active Publication Date: 2018-11-16
ANHUI KELI INFORMATION IND +1
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[0003] The present invention mainly solves the problem of rapid and accurate detection of abnormal parking on the expressway that cannot be quickly and accurately detected in the prior art, and rapid judgment of whether the abnormal parking section needs to change lanes due to the abnormal parking position. Abnormal parking section traffic jam problem
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Embodiment 1
[0081] This embodiment provides a method for controlling expressway lane signal lights using plane perception technology, such as figure 1 shown, including the following steps:
[0082] S1: Plane accurate and continuous tracking of vehicles on the expressway. Such as figure 2 As shown, there are three lanes on the expressway, Lane 1, Lane 2 and Lane 3. Lane lights are provided on each lane, and under normal circumstances, the lane lights are all set to green. The detector is used to perform accurate continuous planar tracking of vehicles within the detection range. Adjacent detection ranges have overlapping ranges, and when a motor vehicle drives out of one detection range, it enters another detection range, so continuous tracking of the vehicle can be achieved.
[0083] S2: Detect in real time whether the vehicles on all lanes in the downstream direction of the lane lights have abnormal parking or the vehicle speed is lower than the first set threshold; if there is, mark...
Embodiment 2
[0091] In this embodiment, on the basis of Embodiment 1, the following improvements are made. The precise and continuous tracking of the plane described in step S1 includes the following steps:
[0092] S11: Install several detectors on the expressway, and the detectors are used for continuous tracking of motor vehicles; mark the detection range of the detectors, the upstream section of the lane signal light, and the downstream section of the lane signal light on the electronic map with latitude and longitude , and the position coordinate data of the detector (X j ,Y j ), the position coordinate data of the lane signal light (X x ,Y x ) marked on the electronic map;
[0093] S12: Obtain the current detection error of the detector (X c ,Y c ), judge the current detection error (X c ,Y c ) is within the set threshold range, if so then enter step S13, otherwise an alarm signal is sent to indicate that the coordinate data of the corrected marker position cannot be accuratel...
Embodiment 3
[0119] This embodiment provides an expressway lane signal light control system using plane perception technology, such as Figure 5 shown, including:
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Abstract
The invention discloses an expressway signal lamp control method and system using plane sensing technology. When an abnormal parking condition happens on the expressway, an abnormal parking position can be promptly obtained and speed of vehicles of an upper reach and a lower reach of the abnormal parking position can be further determined; if the vehicles of the lower reach are always in a congestion state, a lane lamp of each road is set as green; for the upper reach of the abnormal parking position, if the driving speed of the vehicles of the upper reach is not in a congestion state, the signal lamp of each road is set as green; if the vehicle speed of the lower reach of the abnormal parking position is normal and the upper reach is in a congestion state, the expressway road signal lamp control method and system can continue to determine whether the congestion is caused by changing a lane due to the abnormal parking which causes the congestion of the adjacent lane and if the congestion is caused by changing the lane, the signal lamp on the lane where the abnormal parking happens is set as red in order to prompt the vehicles of the upper reach to change the lane. As a result, and thus the vehicle does not need to change the lane when getting near to the abnormal parking position, which can effectively reduce the congestion.
Description
technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a control method and system for expressway lane signal lights using plane perception technology. Background technique [0002] Along with the continuous expansion of urban construction scale, traffic congestion is becoming more and more serious. In order to alleviate traffic congestion, many large cities have built expressways, and lane signal lights have been set on each lane of the expressway. When the public security traffic management department needs to close one of the lanes on the expressway to perform special tasks, it only needs to change the signal light of the lane that needs to be closed from the green lane light to the red lane light. When the current lane lights are congested in a certain lane due to traffic accidents, vehicle failures, etc. due to abnormal parking in a certain lane of the expressway, the upstream signal lights of this lane will n...
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