System and method for quickly discovering causes of congestion by using radar tracking technology

Abstract

The invention discloses a system and method for rapidly finding congestion causing reasons by utilizing a radar tracking technology. Vehicles are continuously tracked through the radar tracking technology, and the state information of the vehicles in a bridge and a tunnel can be accurately obtained. Whether congestion happens to an express way or the bridge or the tunnel or trigger points causing the regional transportation congestion happen, the congestion or the trigger points can be found in time. According to the system and method, congestion time, congestion triggering point time, the congestion position and the congestion triggering point position can be associated together for displaying, when the congestion triggering points are displayed on an electronic map, the congestion triggering points are directly matched with image information, and a user can see the reasons causing the congestion clearly. When the traffic conditions in a certain area of the bridge, the tunnel and the express way are played back, the traffic conditions can be dynamically displayed according to the congestion time, the congestion triggering point time and the congestion triggering point image, and transportation policy makers can better know the traffic conditions of the bridge, the tunnel and the express way.

Description

technical field

[0001] The invention relates to the technical field of intelligent transportation, in particular to a system and method for quickly discovering the cause of congestion by using radar tracking technology. Background technique

[0002] With the continuous expansion of the city scale, the traffic demand is growing rapidly, and the road traffic congestion is becoming more and more serious. In order to alleviate traffic congestion, many cities have built bridges across the sea and rivers, or built tunnels through mountains. After the completion of these bridges and tunnels, they will become urban expressways. The traffic flow is very large. Once abnormal parking cannot be quickly found and dealt with in time It will cause a large area of ​​traffic congestion in a road section or in an area, reduce the traffic capacity of bridges and tunnels, and bring great inconvenience to people's travel. To improve the efficiency of road traffic, it is necessary to quickly dis...

Examples

Embodiment 1

[0044] This embodiment provides a system that uses radar tracking technology to quickly discover the cause of congestion, such as figure 1As shown, it includes: a radar tracking unit, a congestion trigger point judgment unit, a video acquisition unit and a display unit. in:

[0045] The radar tracking unit continuously tracks the running vehicles throughout the whole process, and obtains the position and speed of each vehicle in real time.

[0046] The congestion trigger point judging unit includes:

[0047] The first judging module judges whether the speeds of all the tracked vehicles are consistent. Wherein, the consistent speed may mean that the driving speeds of all the vehicles are roughly equal, that is, the fastest speed and the slowest speed are not much different, for example, they are both about 50 km / hour. However, if some vehicles are at about 50km / hour, and some vehicles are at about 30km / hour, then the vehicle speeds will be inconsistent.

[0048] The second ...

Embodiment 2

[0061] This embodiment provides a method for quickly discovering the cause of congestion by using radar tracking technology, such as figure 2 shown, including the following steps:

[0062] S1: Use radar tracking technology to continuously track moving vehicles, and obtain the position and speed of each vehicle in real time.

[0063] S2: Judging whether there is a congestion trigger point on the road according to the speed of the vehicle within the radar tracking range and the change of the speed, which specifically includes:

[0064] S21: Determine whether the speeds of all the tracked vehicles are the same, if not, go to step S22, and if they are consistent, go to step S23.

[0065] S22: Obtain the first speed of the vehicle at the current position and the second speed of the vehicle L meters ahead, and determine whether the difference between the second speed and the first speed is positive and greater than the speed difference threshold. If so, it is determined that the r...

technical field

[0001] The invention relates to the technical field of intelligent transportation, in particular to a system and method for quickly discovering the cause of congestion by using radar tracking technology. Background technique

[0002] With the continuous expansion of the city scale, the traffic demand is growing rapidly, and the road traffic congestion is becoming more and more serious. In order to alleviate traffic congestion, many cities have built bridges across the sea and rivers, or built tunnels through mountains. After the completion of these bridges and tunnels, they will become urban expressways. The traffic flow is very large. Once abnormal parking cannot be quickly found and dealt with in time It will cause a large area of ​​traffic congestion in a road section or in an area, reduce the traffic capacity of bridges and tunnels, and bring great inconvenience to people's travel. To improve the efficiency of road traffic, it is necessary to quickly dis...

Examples

Embodiment 1

[0044] This embodiment provides a system that uses radar tracking technology to quickly discover the cause of congestion, such as figure 1As shown, it includes: a radar tracking unit, a congestion trigger point judgment unit, a video acquisition unit and a display unit. in:

[0045] The radar tracking unit continuously tracks the running vehicles throughout the whole process, and obtains the position and speed of each vehicle in real time.

[0046] The congestion trigger point judging unit includes:

[0047] The first judging module judges whether the speeds of all the tracked vehicles are consistent. Wherein, the consistent speed may mean that the driving speeds of all the vehicles are roughly equal, that is, the fastest speed and the slowest speed are not much different, for example, they are both about 50 km / hour. However, if some vehicles are at about 50km / hour, and some vehicles are at about 30km / hour, then the vehicle speeds will be inconsistent.

[0048] The second ...

Embodiment 2

[0061] This embodiment provides a method for quickly discovering the cause of congestion by using radar tracking technology, such as figure 2 shown, including the following steps:

[0062] S1: Use radar tracking technology to continuously track moving vehicles, and obtain the position and speed of each vehicle in real time.

[0063] S2: Judging whether there is a congestion trigger point on the road according to the speed of the vehicle within the radar tracking range and the change of the speed, which specifically includes:

[0064] S21: Determine whether the speeds of all the tracked vehicles are the same, if not, go to step S22, and if they are consistent, go to step S23.

[0065] S22: Obtain the first speed of the vehicle at the current position and the second speed of the vehicle L meters ahead, and determine whether the difference between the second speed and the first speed is positive and greater than the speed difference threshold. If so, it is determined that the r...

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