CN104574955B - System and method for recording behaviors that motor vehicles do not yield in accordance with law when passing through crossroad with Stop/Yield sign - Google Patents

Abstract

The invention provides a system for automatically recording behaviors that motor vehicles do not yield in accordance with the law when passing through a crossroad with the Stop/Yield sign. The system comprises two video tracking units. The method comprises the following steps: respectively tracking motor vehicles both in the Stop/Yield direction and priority pass direction by the two video tracking units, and judging whether the motor vehicles in the Stop/Yield direction do not park at a position behind the Yield line; judging whether the parking time of the motor vehicles in the Stop/Yield direction park behind the Stop/Yield line is shorter than a set time threshold value or not; judging whether the behavior that motor vehicles in the in the Stop/Yield direction passing through the Yield line leads to slowing down or stop of the motor vehicles in the priority pass direction; judging whether the safety intervals between motor vehicles in the Stop/Yield direction and the motor vehicles in the priority pass direction are smaller than a set safe distance threshold value or not so as to photograph the motor vehicles not yielding in accordance with the law to obtain evidence.

Description

System and method for recording illegal behavior of motor vehicles passing through stop and give way intersections

technical field

The invention relates to the field of traffic law enforcement, in particular to a system for automatically recording the behavior of motor vehicles not giving way according to law when passing through a stop and give way intersection.

Background technique

With the continuous increase of the number of motor vehicles, traffic accidents at intersections occur frequently. In order to reduce the occurrence of traffic accidents at intersections, four modes are used to control intersections at home and abroad, one is signal light control; the other is roundabout control; the third is The deceleration and yielding control is carried out through the marking lines; the fourth is the parking yielding control is carried out through the marking lines.

It is the pursuit goal of the traffic management department to ensure orderly, safe and smooth traffic at the intersection. The four control modes mentioned above need to be set according to the traffic conditions at the intersection. When the motor vehicle flow at the intersection reaches the specified standard for installing signal lights for control, it needs to be controlled by signal lights. If the motor vehicle flow does not reach the specified standard, the use of signal lights for control will reduce the traffic efficiency of the intersection. Therefore, when many domestic motor vehicle flows do not reach the standard of adopting signal lights to control intersections, they all adopt deceleration to give way or stop to give way to markings and signs to control.

According to item 5.2 of the national standard GB5768.2-2009: stop and give way sign, indicating that vehicles should stop and look around before the stop line, and pass after confirming safety;

According to 5.6.1 of the national standard GB5768.3-2009, the stop and give way line indicates that vehicles should stop at this intersection to let the vehicles on the main road go first.

But at present, domestic drivers rarely have motor vehicles to take the initiative to stop and look around when driving motor vehicles through the intersection to give way. According to the accident statistics report, traffic accidents caused by failure to give way according to the regulations account for more than 20% of the total number of accidents. For the automatic detection system and its operation method of the driving vehicle violating the regulation of giving way, the patent document CN100476899 discloses a kind of automatic detection system and its operation method of the form vehicle which violates the regulation of giving way. Or a pedestrian detector, two vehicle detectors before and after the give-way line, an image recording device for illegal vehicles and a processing computer connected to them. The operation method of the system is to detect the interval time between the vehicle detector after the yield line and the vehicle detector before the yield line when the vehicle successively occupies the branch line. If it is less than the specified minimum yield time T, it is determined that the vehicle violates the yield regulation. , even if the above-mentioned interval time is not less than the minimum yielding time T, if it is detected that the vehicle with the right of way or the pedestrian detector is occupied at this time, it is still determined that the vehicle violates the yielding regulations. Start the image recording device of the violating vehicle to take pictures and record the vehicle.

However, in this scheme, only when the motor vehicle is parked on the detector can it be detected that the vehicle has stopped. If the motor vehicle stops behind the parking yield line but does not stop on the detector, misjudgment will easily occur. . In addition, in this plan, it is impossible to accurately determine whether the motor vehicles in the direction of giving way cause the motor vehicles in the direction of priority to slow down or stop, so it is impossible to effectively supervise the behavior of motor vehicles that stop and give way at intersections that do not comply with the law.

Contents of the invention

For this reason, the technical problem to be solved by the present invention is that in the prior art, comprehensive and effective supervision cannot be carried out for the illegal behavior of motor vehicles that stop and give way according to the law, thereby providing an automatic recording of motor vehicle passing A system that stops and gives way at intersections that do not give way according to the law.

In order to solve the above-mentioned technical problems, the present invention provides a system for automatically recording the illegal behavior of motor vehicles passing through a stop and give way intersection.

The present invention provides a system for automatically recording the illegal behavior of motor vehicles passing through a parking and yielding intersection, which is set at the intersection where motor vehicles are required to stop and yield, and the parking and yielding intersection is designated for parking and yielding in the direction where parking and yielding are required line and set up stop and give way signs, and draw stop lines in the priority direction, including:

The first video tracking unit: real-time continuous tracking of motor vehicles that need to stop and give way;

The second video tracking unit: real-time continuous tracking of motor vehicles in the priority direction;

Data processing unit, including:

Parking judging subunit: according to the motor vehicle running track continuously tracked by the first video tracking unit, it is judged whether the motor vehicle in the direction of parking and giving way does not stop behind the parking and giving way line when passing through the parking and giving way intersection;

Priority judging subunit: after crossing the stop and give way line, whether to cause the motor vehicle in the priority passing direction in the second video tracking unit to decelerate;

Safety distance judging sub-unit: judge the distance between the motor vehicle and the motor vehicle in the priority direction in the second video tracking unit after the motor vehicle in the first video tracking unit needs to stop and cross the parking yield line. Whether the distance is less than the set safety distance threshold;

Processing sub-unit: if the motor vehicle in the yielding direction does not stop behind the parking yield line or causes the motor vehicle in the priority direction to decelerate or the distance from the motor vehicle in the priority direction is less than the set safety distance threshold, then the motor vehicle in the parking direction motor vehicles are automatically recorded.

Preferably, the data processing unit further includes a parking time judging subunit: judging whether the parking time of the motor vehicle in the parking direction to give way is less than a set time threshold; If the parking time is less than the threshold, the motor vehicle is recorded.

Preferably, the process of recording the motor vehicle includes performing number plate recognition and labeling the number plate recognition result on the dynamic image of the motor vehicle, and taking screenshots to record the image, time and crossing of the parking yield line. The image and time of the line position, and send the above data into the database for storage.

The present invention also provides a method for automatically recording the illegal behavior of a motor vehicle passing a parking and giving way intersection, including:

S1: Real-time continuous tracking of motor vehicles that need to stop and give way;

S2: When a motor vehicle passes by, take a screenshot of the motor vehicle entering the tracking range, and perform number plate recognition; and mark the number plate recognition result on the dynamic image of the motor vehicle;

S3: Judging whether the motor vehicle stops after the stop and give way line, if not, record the motor vehicle,

S4: Continue to continuously track in real time each motor vehicle that enters the tracking range in the priority direction of traffic;

S5: Determine whether the motor vehicles entering in the priority direction pass through the intersection at a normal speed, otherwise, record the behavior of the motor vehicles in the yield direction that affect the normal passage of the motor vehicles in the priority direction, and if so, continue to the next step;

S6: Detect whether the distance between the motor vehicle in the yield direction and the motor vehicle in the priority direction is greater than or equal to the set distance threshold when the motor vehicle in the yield direction crosses the stop line, otherwise record the illegal behavior of the motor vehicle in the yield direction that affects the passage of motor vehicles in the priority direction.

Preferably, in said S3, it also includes when the motor vehicle stops after the parking yield line, judging whether the parking time of the motor vehicle after the parking yield line is greater than or equal to the set time threshold, otherwise the parking time is less than the set time threshold Behavior at a certain time threshold is recorded.

Preferably, the process of recording the motor vehicle includes performing number plate recognition and labeling the number plate recognition result on the dynamic image of the motor vehicle, and taking screenshots to record the image, time and crossing of the parking yield line. The image and time of the line position, and send the above data into the database for storage.

The above technical solution of the present invention has the following advantages compared with the prior art,

(1) The present invention provides a system for automatically recording the illegal behavior of motor vehicles passing through the intersection of parking and giving way, including two video tracking units, which can continuously track the motor vehicles in the direction of parking and giving way and the direction of priority traffic respectively, By judging whether the motor vehicle in the direction of giving way has caused the motor vehicle in the priority direction to decelerate after entering the intersection, and whether the distance between the motor vehicles is less than the set safety distance threshold, it is judged whether the motor vehicle in the direction of giving way complies with the regulations of parking and yielding , and then take photos of motor vehicles that do not give way in accordance with the regulations to facilitate subsequent law enforcement. The program realizes the effective supervision of the non-stop and yield behavior of motor vehicles passing through the stop and give way intersection, and prevents and reduces the traffic accidents caused by non-stop and give way at the stop and give way intersection.

(2) The present invention provides a system for automatically recording the behavior of motor vehicles that fail to give way according to the law at the intersection of parking and yielding, and also includes continuous tracking of motor vehicles in the direction of parking and yielding. When the motor vehicle stops behind the stop line but does not When it stops on the detector, it can also accurately judge that the motor vehicle has stopped according to the regulations, reducing misjudgment.

(3) The present invention provides a system for automatically recording the illegal behavior of motor vehicles passing through parking and giving way intersections, which can automatically identify the license plate of the motor vehicle and simultaneously mark it on the corresponding dynamic image of the motor vehicle in the tracking screen and the parking process Take a screenshot of the image and upload it to the database to provide evidence for law enforcement and facilitate subsequent law enforcement.

Description of drawings

In order to make the content of the present invention more easily understood, the present invention will be described in further detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

Fig. 1 is a schematic structural diagram of a system for automatically recording illegal behavior of motor vehicles passing through a parking and yielding intersection according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the installation of a system for automatically recording the illegal behavior of motor vehicles passing through a parking and yielding intersection according to an embodiment of the present invention;

Fig. 3 is a flow chart of a system for automatically recording illegal yielding behaviors of motor vehicles passing through a parking and yielding intersection according to an embodiment of the present invention.

detailed description

Example 1:

According to item 5.2 of the national standard GB5768.2-2009: Stop and give way sign, indicating that vehicles should stop and look around before the stop line, and pass after confirming safety; stop and give way according to 5.6.1 of the national standard GB5768.3-2009 The line indicates that vehicles should stop at this intersection to let vehicles on the main road go first. Because which intersections need to stop and give way is determined by the management department according to the relevant standards and the actual situation of the intersection. The purpose of parking to give way is to ensure the safe and orderly passage of vehicles through the intersection. If the vehicle does not drive according to the regulations, there will be huge security risks.

This embodiment provides a system for automatically recording the illegal behavior of motor vehicles passing through the stop and give way intersection. It is installed at the stop and give way intersection, and the stop and give way line is drawn and the stop and give way sign is set in the direction where the stop and give way is required. sign, and draw a stop line in the priority direction. The structural diagram of the system is shown in Figure 1, including a first video tracking unit and a second video tracking unit, respectively tracking motor vehicles in the direction of giving way and the direction of priority, the first The real-time continuous tracking of the video tracking unit needs to stop the motor vehicle in the direction of giving way; the second video tracking unit real-time continuous tracking of the motor vehicle in the priority traffic direction; the installation schematic diagram of the first video tracking unit and the second video tracking unit is shown in Figure 2 Show.

The system also includes a data processing unit, which includes the following subunits:

Priority judging subunit: judging whether the motor vehicle in the priority direction in the second video tracking unit decelerates after the motor vehicle in the direction that needs to stop to give way in the first video tracking unit crosses the stop and give way line;

Safe distance judging subunit: after judging the motor vehicle in the first video tracking unit that needs to stop in the direction of passing and entering the intersection, whether the distance between the motor vehicle and the motor vehicle in the priority direction in the second video tracking unit is Less than the set safety distance threshold;

Processing subunit: if the motor vehicles in the priority traffic direction decelerate or stop or the distance between the motor vehicles is less than the set safety distance threshold, record the motor vehicles in the direction that need to stop and give way. In other alternative implementations, in order to improve the accuracy of the processing subunit in judging the non-yielding motor vehicle, it can also be set that when the motor vehicle in the priority passing direction decelerates and the distance is less than the set safety distance threshold, Only the motor vehicles that need to stop and give way are recorded, and stored in the motor vehicle storage database for illegally giving way.

The monitoring method of the motor vehicle passing the parking and giving way intersection corresponding to the above-mentioned monitoring system in the present embodiment, as shown in Figure 3, includes the following steps:

S1: Real-time continuous tracking of motor vehicles that need to stop and give way;

S2: If there is a motor vehicle passing, go to S3, otherwise return to S1

S3: Take a screenshot of the motor vehicle that has just entered the tracking range; perform number plate recognition; and mark the number plate recognition result on the dynamic image of the motor vehicle;

S4: The motor vehicle stops after the stop and give way line;

S5: If yes, go to S6; otherwise, take pictures of the behavior of not stopping and yielding; return to S1

S6: The parking time of the motor vehicle after the parking yield line is greater than or equal to the set time threshold;

S7: If yes, go to S8; otherwise, take pictures of the behavior of the parking time being less than the set time threshold; return to S1

S8: Real-time continuous tracking of each motor vehicle that enters the tracking range in the priority direction of traffic;

S9: After the motor vehicle in the direction of giving way crosses the stop and give way line, it is judged whether the motor vehicle in the direction of priority passes through the intersection at a normal speed;

S10: If yes, go to S11; otherwise, take photos of behaviors that affect the normal passage of motor vehicles in the priority direction; return to S1

S11: Detect whether the distance between the motor vehicle in the yielding direction and the motor vehicle in the priority direction is greater than or equal to the set distance threshold when it crosses the stop line, and return to S1 if yes; Take pictures; combine the screenshots of the process of decelerating and avoiding the motor vehicles in the priority direction with the screenshots of the position of the motor vehicles in the yielding direction to form evidence of not stopping and yielding, and return to S1

As an alternative embodiment, in this step, it can also be set that when the motor vehicle in the priority traffic direction decelerates and the distance is less than the set safety distance threshold, record the motor vehicle in the direction that needs to stop and give way. This method can Improve the accuracy of judging motor vehicles not giving way.

In this embodiment, the system for automatically recording the illegal behavior of motor vehicles passing through a stop and give way intersection judges whether the motor vehicle in the direction of giving way will decelerate and whether the distance between the motor vehicles is If it is less than the set safety distance threshold, it is used to judge whether the motor vehicles in the direction of giving way have complied with the regulations of parking and yielding, and then take photos of motor vehicles that do not give way according to the regulations, so as to facilitate subsequent law enforcement. The scheme can effectively supervise the motor vehicles that do not give way at the stop and give way intersection, and improve the safety of the stop and give way intersection.

Example 2:

A system that automatically records the behavior of motor vehicles that fail to give way according to the law when passing through a stop and give way intersection. Line markings and stop and give way signs are set up, and stop markings are drawn in the priority direction.

System Components:

The first video tracking unit: used for real-time tracking of motor vehicles passing through intersections that need to stop and give way.

The second video tracking unit: used for real-time tracking of motor vehicles in the priority traffic direction.

Data processing unit, including:

The parking judging sub-unit is used to judge whether the motor vehicle stops behind the parking and giving way line when passing through the intersection where parking and giving way are required. According to the motor vehicle track tracked by the first video tracking unit, it is judged whether the motor vehicle in the direction of parking and giving way stops behind the parking and giving way line when passing through the parking and giving way intersection.

The parking time judging subunit judges whether the parking time of the motor vehicle is less than the set time threshold; the processing subunit also includes recording the motor vehicle if the parking time of the motor vehicle is less than the set time threshold.

The priority judging subunit judges whether the motor vehicle in the direction of priority in the second video tracking unit decelerates after the motor vehicle in the direction that needs to stop in the first video tracking unit crosses the parking and giving way line.

Safety distance judging sub-unit: judge the distance between the motor vehicle and the motor vehicle in the priority direction in the second video tracking unit after the motor vehicle in the first video tracking unit needs to stop and cross the parking yield line. Whether the distance is less than the set safety distance threshold.

Although the parking time of motor vehicles is greater than or equal to the threshold value set in accordance with the regulations, it is necessary to judge whether it will affect the deceleration or parking of motor vehicles in the priority direction when entering the intersection, or the distance between motor vehicles in the direction of giving way is less than the set safety distance threshold, through the above subunit judgment.

The processing sub-unit, if the motor vehicle in the parking and yielding direction does not stop behind the parking and yielding line, record the motor vehicle; if the motor vehicle in the priority traffic direction slows down or the distance is less than the set safety distance threshold, then Record motor vehicles that need to stop and give way. If the above conditions are not met, carry out number plate recognition and take a screenshot to record the image and time of its arrival at the parking yield line position and the image and time of crossing the parking yield line position, and send it to the illegal database for storage.

The above-mentioned monitoring system corresponds to the system that automatically records the illegal behavior of motor vehicles passing through the intersection of parking and giving way, as shown in Figure 3, and the details are as follows:

S1: Real-time continuous tracking of motor vehicles that need to stop and give way;

S2: If there is a motor vehicle passing, go to S3, otherwise return to S1

S3: Take a screenshot of the motor vehicle that has just entered the tracking range; perform number plate recognition; and mark the number plate recognition result on the dynamic image of the motor vehicle;

S4: The motor vehicle stops after the stop and give way line;

S5: If yes, go to S6; otherwise, take pictures of the behavior of not stopping to give way, and send the screenshot and time of the vehicle behind the parking yield line, and the screenshot and time of the vehicle crossing the parking yield line to the illegal database and the motor vehicle Merge the first screenshot into the illegal evidence of not stopping and yielding; return to S1

S6: The parking time of the motor vehicle after the parking yield line is greater than or equal to the set time threshold;

S7: If yes, go to S8; otherwise, take pictures of the behavior of the parking time being less than the set time threshold; return to S1

S8: Real-time continuous tracking of each motor vehicle that enters the tracking range in the priority direction of traffic;

S9: After the motor vehicle in the direction of giving way crosses the stop and give way line, it is judged whether the motor vehicle in the direction of priority passes the intersection at a normal speed;

S10: If yes, go to S11; otherwise, take pictures of behaviors that affect the normal passage of motor vehicles in the priority direction; return to S1.

S11: Detect whether the distance between the motor vehicle in the yielding direction and the motor vehicle in the priority direction is greater than or equal to the set distance threshold when it crosses the stop line, and return to S1 if yes; Take pictures, combine the screenshots of the process of decelerating and avoiding the motor vehicles in the priority direction with the screenshots of the position of the motor vehicles in the yielding direction to form evidence of not stopping and yielding; return to S1.

The recording in the above process includes sending the screenshot and the moment when the motor vehicle crosses the stop yielding line to the illegal database and synthesizing it with the first screenshot of the motor vehicle into a non-stop yielding Evidence of violations.

The embodiment of the present invention provides a system for automatically recording the illegal behavior of motor vehicles passing through the parking and giving way intersections. Waiting for parking, whether the waiting time for parking is less than the set time threshold, if there is no waiting for parking or waiting but the waiting time is less than the set time threshold or the distance between the motor vehicle and the priority traffic direction is less than the set distance threshold, immediately Take photos and record the illegal behavior of the motor vehicle in violation of the parking and yielding regulations.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (6)

1. A system that automatically records the illegal behavior of motor vehicles passing through a stop and give way intersection, which is installed at the intersection where motor vehicles are required to stop and give way, and the said stop and give way intersection is designated to stop and give way in the direction that needs to stop and give way line and set a stop and yield sign board, and draw a stop line in the priority direction, which is characterized in that it includes: The first video tracking unit: real-time continuous tracking of motor vehicles that need to stop and give way; The second video tracking unit: real-time continuous tracking of motor vehicles in the priority direction; Data processing unit, including: Parking judging subunit: according to the motor vehicle running track continuously tracked by the first video tracking unit, it is judged whether the motor vehicle in the direction of parking and giving way does not stop behind the parking and giving way line when passing through the parking and giving way intersection; Priority judging subunit: after crossing the stop and give way line, whether to cause the motor vehicle in the priority passing direction in the second video tracking unit to decelerate; Safety distance judging sub-unit: judge the distance between the motor vehicle and the motor vehicle in the priority direction in the second video tracking unit after the motor vehicle in the first video tracking unit needs to stop and cross the parking yield line. Whether the distance is less than the set safety distance threshold; Processing subunit: if the motor vehicle in the parking direction does not stop behind the parking yield line or causes the motor vehicle in the priority direction to decelerate or the distance from the motor vehicle in the priority direction is less than the set safety distance threshold, then the parking Motor vehicles in the direction of giving way are automatically recorded. 2. The system according to claim 1, wherein the data processing unit also includes a parking time judging subunit: judging whether the parking time of the motor vehicle in the parking direction is less than a set time threshold; the processing The subunit also includes recording the motor vehicle if the parking time of the motor vehicle in the parking and yielding direction is less than the set time threshold. 3. The system according to claim 1 or 2, characterized in that the process of recording the motor vehicle in the direction of parking and yielding includes performing number plate recognition and marking the number plate recognition result on the dynamic image of the motor vehicle , and take a screenshot to record the image and time of its arrival at the parking yield line position and the image and time of crossing the parking yield line position, and send the above data into the database for storage. 4. A method for automatically recording the behavior of not giving way according to law when a motor vehicle passes through a stop and give way intersection, it is characterized in that, S1: Real-time continuous tracking of motor vehicles that need to stop and give way; S2: When a motor vehicle passes by, take a screenshot of the motor vehicle entering the tracking range, and perform number plate recognition; and mark the number plate recognition result on the dynamic image of the motor vehicle; S3: Judging whether the motor vehicle stops after the stop and give way line, if not, record the motor vehicle, S4: Continue to continuously track in real time each motor vehicle that enters the tracking range in the priority direction of traffic; S5: Determine whether the motor vehicles entering in the priority direction pass through the intersection at a normal speed, otherwise record the behavior of the motor vehicles in the stop and yield direction that affect the normal passage of motor vehicles in the priority direction, and if so, proceed to the next step; S6: Detect whether the distance between the motor vehicle in the parking direction and the motor vehicle in the priority direction is greater than or equal to the set distance threshold when the motor vehicle in the parking and yielding direction crosses the stop line; Record. 5. The method according to claim 4, characterized in that, in said S3, it also includes when the motor vehicle stops after the parking yield line, judging whether the parking time of the motor vehicle after the parking yield line is greater than or It is equal to the set time threshold, otherwise the behavior of parking time less than the set time threshold will be recorded. 6. The method according to claim 4 or 5, characterized in that the process of recording the motor vehicle in the direction of parking and yielding includes performing number plate recognition and marking the number plate recognition result on the dynamic image of the motor vehicle , and take a screenshot to record the image and time of its arrival at the parking yield line position and the image and time of crossing the parking yield line position, and send the above data into the database for storage.