CN104575047A - System and method for preventing motor vehicle from rushing for green light to block road junction and running red light in reminding mode - Google Patents

Abstract

The present invention provides a system and method capable of prompting and preventing motor vehicles from blocking intersections with green lights and running red lights, detecting the speed of motor vehicles crossing the stop line; The remaining time of the green light in the direction of release, if the required passing time is greater than the remaining time of the green light, the prompt unit will prompt the motor vehicle not to enter the intersection. Through this method, when the intersection is about to be congested, the vehicle can be reminded not to enter the intersection, so it can effectively prevent the occurrence of motor vehicles seeing the green light and continuing to follow up when the intersection is about to be congested. Unblocked traffic at intersections. On this basis, the program also provides monitoring of violations of red light violations, taking pictures of vehicles entering the intersection when the light is not green, and effectively supervising red light violations.

Description

System and method for prompting and preventing motor vehicles from following green lights to block intersections and running red lights

technical field

The invention relates to the field of traffic law enforcement, in particular to a system and method capable of prompting and preventing motor vehicles from blocking intersections with green lights and running red lights.

Background technique

In order to ensure orderly, safe and smooth traffic at intersections, the traffic management department has set up intersection control signal lights at intersections where the hourly traffic flow of motor vehicles reaches the prescribed standard. Under normal circumstances, signal lights control intersections can replace the role of police command. When there is an accident at the intersection or rain and snow cause congestion ahead, the speed of motor vehicles entering the intersection during green light time will be much lower than the normal speed of passing through the intersection. At this time, the driver should stop the motor vehicle outside the intersection, otherwise, he will not be able to leave the intersection when the red light is on, causing this intersection or even a regional traffic paralysis.

In order to prevent the occurrence of intersection congestion caused by green light follow-up, Article 53 of the Implementation Regulations of the Road Traffic Safety Law of the People's Republic of China stipulates: "When a motor vehicle encounters a traffic jam at an intersection ahead, it shall stop outside the intersection in turn and shall not enter the intersection. crossing.” However, due to the lack of effective means of law enforcement, this phenomenon continues to occur.

For this reason, Chinese patent document CN103258429A discloses a video detection method for motor vehicles to enter forcibly when an intersection is congested. Follow up the acquired video image data to monitor the state of the overflow detection area at the intersection ahead, and track and record in real time the video image data. The position and residence time of each vehicle that appears, when the state of the overflow detection area is the vehicle overflow state, mark the vehicle that crosses the stop line of the vehicle detection area as a suspected illegal vehicle; determine the traffic status of the current road according to the acquired video image data ; When the traffic state of the current road is a congested state, mark the violating vehicle that reaches the violation standard as a violating vehicle, and for each violating vehicle, extract a plurality of images representing the violating process of the violating vehicle from the acquired video image data picture. The problem with this scheme is that it is not related to the light color of the signal light. According to the current actual situation, as long as a motor vehicle entering the intersection when the green light or amber light is on can leave the intersection when the red light is on, it is not a violation of relevant regulations. .

In the Chinese patent document CN102768801A, a video-based detection method for motor vehicle green light follow-up violations is disclosed. Under the green light phase, when the road ahead is seriously congested, the congestion prohibition warning sign displays warning information, prompting straight vehicles to prohibit entering the intersection , for the motor vehicle that continues to move forward when the warning sign is on, it will be listed as a suspected violation, and track tracking will be started; the suspected violation vehicle will be tracked continuously to obtain its complete trajectory at the intersection; the red light phase starts, if the suspected If the illegal vehicles are still stranded in the central no-stop zone, the violation time is reached, and the photos and videos of the violations are analyzed and obtained. However, in this scheme, the reminder is only given after the intersection is congested, and the reminder cannot be given when the congestion is about to occur; the reminder is only given through the warning sign, and there is no legal responsibility for the vehicle that leads to the congested intersection following the green light. It can prompt in time and change the state of the light color and then take pictures of the motor vehicle running the red light, so as to effectively prevent the occurrence of traffic jams. .

Contents of the invention

For this reason, the technical problem to be solved by the present invention lies in the problem that in the prior art, when a traffic jam is about to occur at an intersection controlled by signal lights, the motor vehicle cannot be prompted in time not to enter the intersection and at the same time record the illegal behaviors of following a green light and running a red light, thus proposing a A system and method capable of prompting and preventing motor vehicles from following green lights to block intersections and running red lights.

In order to solve the above technical problems, the present invention provides a system and method for prompting and preventing motor vehicles from following green lights to block intersections and running red lights.

The present invention provides a system for prompting and preventing motor vehicles from following green lights to block intersections and running red lights, including:

Video tracking unit: real-time and continuous tracking of each motor vehicle entering the intersection;

A speed detection unit, which detects the speed of each motor vehicle crossing the stop line;

Prompt unit: when the intersection is about to be congested, it reminds motor vehicles not to enter the intersection;

Control unit: judge whether the signal light in the current direction is a green light, if so, calculate the transit time T required for the motor vehicle to pass through the intersection, and monitor the remaining time t of the green light in the current direction in real time, if the required transit time T is greater than the remaining time of the green light t , it means that the intersection is about to be congested, and the motor vehicle is prompted not to enter the intersection through the prompt unit;

Follow-up recording unit: After the prompt unit prompts motor vehicles not to enter the intersection, record each motor vehicle that continues to cross the stop line with a green light;

Red light recording unit: record the motor vehicles that cross the stop line when the red light is on;

Timing unit: When it is detected that the signal light in the direction of release turns red, it will time each vehicle whose green light crosses the stop line and stays at the intersection, and record the illegal behavior of motor vehicles whose detention time is greater than the set time threshold.

Preferably, the control unit includes a transit time calculation subunit, which calculates the transit time required for the motor vehicle to pass through the intersection, including:

T=L/V, wherein, T=the current time required by the crossing, L=the length of the stop line in the direction of release to the other side's stop line; v=the speed of each motor vehicle in the direction of release when it crosses the stop line.

Preferably, the recording unit includes a tracking subunit, which takes pictures of each motor vehicle that crosses the stop line and automatically recognizes its license plate number, and automatically marks its license plate number on the image of the motor vehicle in the screen, and always Follow the motor vehicle until the motor vehicle moves out of the tracking range.

Preferably, in the timing unit, the process of recording illegal behaviors includes: when the red light is on, taking a screenshot of the motor vehicle image marked with the vehicle license plate number that has been staying in the intersection for a time greater than the set threshold and the vehicle image when the green light is on After the image with the license plate number of the bullet train entering the intersection is synthesized, it is sent to the green light follow-up illegal behavior database.

The present invention also provides a method for prompting and preventing a motor vehicle from following a green light to block an intersection and run a red light, including:

Real-time continuous tracking of each motor vehicle entering the intersection;

Detect the speed of each motor vehicle crossing the stop line;

Judging whether the signal light in the current direction is green, if so, calculate the transit time T required for the motor vehicle to pass through the intersection, and monitor the remaining time t of the green light in the current direction in real time. If the required transit time T is greater than the remaining time t of the green light, it means The intersection is about to be congested, and the prompt unit reminds motor vehicles not to enter the intersection;

After the prompting unit prompts the motor vehicle not to enter the intersection, record each motor vehicle that continues to cross the stop line with the green light;

When it is detected that the signal light in the direction of release turns red, record the motor vehicles that cross the stop line when the red light is on, and time each vehicle that enters the stop line and stays at the intersection when the green light is on. Motor vehicles that exceed the time threshold will be recorded for violations.

Preferably, the process of calculating the passing time required for each motor vehicle to pass through the intersection is: calculating T=L/V, wherein, T=the time required for each motor vehicle to pass through the intersection, and L=the stop line in the direction of release until the other party stops The length of the line; v = the speed of each motor vehicle in the direction of release when it crosses the stop line

Preferably, the process of recording each motor vehicle that continues to cross the stop line with a green light includes: taking pictures of each motor vehicle that crosses the stop line, automatically identifying its license plate number, and automatically marking the identified license plate number Go to the image of the motor vehicle in the screen, and follow the motor vehicle until the motor vehicle moves out of the tracking range.

Preferably, the process of recording illegal behaviors for motor vehicles whose residence time is greater than the set time threshold includes: comparing the screenshot of the image marked with the residence time after the red light is on and the license plate number of the motor vehicle with the motor vehicle entering the intersection when the green light is on After the image with the license plate number is synthesized, it is sent to the green light follow-up illegal behavior database.

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

(1) The present invention provides a system and method for prompting and preventing a motor vehicle from following up with a green light to block an intersection and run a red light, detect the speed v of each motor vehicle crossing the stop line; calculate the required transit time T through the intersection, and Monitor the remaining time t of the green light in the current release direction. If the required passing time T is greater than the remaining time t of the green light, the prompt unit will prompt the motor vehicle not to enter the intersection, and track the motor vehicle entering the intersection. After the light, the motor vehicle that stays at the intersection for a time greater than the set time threshold will be recorded as a basis for following up the law with a green light. Through this method, when congestion is about to occur at the intersection, the motor vehicle can be prompted not to enter the intersection by means of a reminder, so it can effectively prevent the occurrence of the phenomenon that the green light of the motor vehicle continues to follow up when the congestion is about to occur at the intersection, ensuring Unblocked traffic at intersections. On this basis, the program also provides monitoring of violations of red light violations, taking pictures of vehicles entering intersections at red lights, and effectively supervising red light violations.

(2) Prompt among the present invention and prevent that motor vehicle green light follows up the method for blocking crossing and run through red light, can also track each motor vehicle that enters crossing continuously in real time by video tracking equipment, when crossing green light or yellow light are bright, to Each vehicle that crosses the stop line takes a photo and recognizes the license plate at the same time, and directly marks the recognized license plate number on the image of the motor vehicle on the screen, so that when the intersection is congested, the system can also accurately know that it is blocked in a tight queue at the intersection. When the license plate number of each motor vehicle blocked by the rear vehicle, when the signal in the direction of release turns to red light, it will immediately count the timing of each motor vehicle that cannot leave the intersection. When the accumulated time is greater than the set time threshold, the system will automatically The screenshot of the image marked with the license plate number of the motor vehicle that cannot leave the intersection when the red light is on and the image with the license plate number of the motor vehicle entering the intersection when the green light is on are synthesized, and then sent to the green light follow-up illegal behavior database.

(3) The system and method for prompting in the present invention and preventing the green light of motor vehicles from following up to block intersections and running red lights, when detecting that the signal light is a green light, record every motor vehicle that crosses the stop line in the direction of travel; When the signal lights in the above directions are red lights, time is counted for each vehicle stranded at the intersection, and illegal behavior records are recorded for motor vehicles whose stranded time is greater than the set time threshold. It solves the problem that in the prior art, it is impossible to punish the violation of the regulations that motor vehicles cannot enter the intersection even if the intersection is green even if the intersection is blocked, so as to warn motor vehicle drivers that when the intersection ahead is about to be blocked, even if the light is green. Do not enter the intersection to ensure that the intersection is clear.

(4) A kind of system and method that can remind and prevent motor vehicle green light follow-up blocking crossing and running red light among the present invention is to track continuously to each vehicle, and will be monitored when parking at any position in the crossing, no need Set the overflow detection area.

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 structural diagram of a system and method capable of prompting and preventing a motor vehicle from following a green light to block an intersection and running a red light in an embodiment of the present invention;

Fig. 2 is a schematic diagram of the system and method for prompting and preventing motor vehicles from following green lights to block intersections and running red lights in an embodiment of the present invention;

Fig. 3 is a flow chart of a method capable of prompting and preventing motor vehicles from following green lights to block intersections and running red lights in an embodiment of the present invention.

Detailed ways

Example 1:

This embodiment provides a system that can prompt and prevent motor vehicles from following up with green lights to block intersections and run red lights, as shown in Figure 1, including:

Video tracking unit: real-time and continuous tracking of each motor vehicle entering the intersection, set at the intersection, as shown in Figure 2.

A speed detection unit, which detects the speed of each motor vehicle crossing the stop line;

Prompt unit: when the intersection is about to be congested, it reminds motor vehicles not to enter the intersection;

Control unit: judge whether the current signal light is a green light, if it is, calculate the transit time T required by the motor vehicle to pass through the intersection, and monitor the remaining time t of the green light in the current direction in real time, if the required transit time T is greater than the remaining time t of the green light, Then it shows that the crossing is about to be congested, and the motor vehicle is prompted not to enter the crossing through the prompt unit.

Wherein, the control unit also includes a transit time calculation subunit, which calculates the transit time T required for the motor vehicle to pass through the intersection, including:

T=L/V, wherein, T=motor vehicle passes the required time of crossing, the length of the stop line of L=release direction to the other side's stop line; v=speed when each motor vehicle of release direction crosses the stop line.

The above method can only prompt and cannot supervise the follow-up behavior of the green light. In order to monitor the motor vehicles that continue to follow the green light without following the prompts, you can further set:

Follow-up recording unit: After the prompt unit prompts motor vehicles not to enter the intersection, record each motor vehicle that continues to cross the stop line with a green light;

Red light recording unit: record the motor vehicles that cross the stop line when the red light is on;

Timing unit: When it is detected that the signal light in the direction of release turns red, it will time each vehicle whose green light crosses the stop line and stays at the intersection, and record the illegal behavior of motor vehicles whose detention time is greater than the set time threshold. The process of recording illegal behaviors includes: combining the screenshot of the image marked with the vehicle license plate number with the image with the license plate number of the motor vehicle entering the intersection when the green light is on, and sending it to the green light follow-up illegal behavior database.

When recording each motor vehicle that crosses the stop line with a green or red light in the direction of travel, it includes: taking pictures of each motor vehicle that crosses the stop line, automatically identifying its license plate number, and automatically marking the identified license plate number Go to the image of the motor vehicle in the screen, and follow the motor vehicle until the motor vehicle moves out of the tracking range.

In this way, not only can the lights be changed to prevent motor vehicles from following the green light to block the intersection, but also the green light before the light change can be monitored, and each motor vehicle entering the intersection can be continuously tracked in real time through the video tracking equipment. When the green light or yellow light at the intersection is on, the license plate recognition is performed while taking pictures of each vehicle that crosses the stop line, and the recognized license plate number is directly marked on the image of the motor vehicle in the screen, so that when the intersection is congested, the system can also Accurately know the license plate number of each motor vehicle blocked by each rear vehicle in the tight queue entering the intersection. When the signal in the direction of release turns to red light, immediately time each motor vehicle that cannot leave the intersection. When the cumulative time is greater than When setting the time threshold, if the threshold is set to 5S, then after 5S, the system will automatically capture the screenshot of the image marked with the license plate number of the motor vehicle that cannot leave the intersection when the red light is on, and the license plate number of the motor vehicle entering the intersection when the green light is on. After the images are synthesized, they are sent to the green light follow-up illegal behavior database.

Example 2:

This embodiment provides a system and method that can prompt and prevent motor vehicles from following up with green lights to block intersections and run red lights, as shown in Figure 3, including the following steps:

S1: Real-time continuous tracking of each motor vehicle entering the intersection.

S2: Detect the speed of each motor vehicle crossing the stop line.

S3: Determine whether the signal light in the current direction is a green light, if so, calculate the transit time T required for the motor vehicle to pass through the intersection, and monitor the remaining time t of the green light in the current direction in real time, if the required transit time T is greater than the remaining time t of the green light, Then it shows that the crossing is about to be congested, and the motor vehicle is prompted not to enter the crossing through the prompt unit.

The concrete implementation mode of this step is: calculate T=L/V, wherein, T=the time that current speed passes through the intersection needs, L=the stop line of the release direction to the length of the other side's stop line; v=the current release direction motor vehicle crosses the stop line speed.

In this way, if there is a motor vehicle to cross the stop line at this time, if the remaining time t of the green light is less than the time T required to pass through the intersection at this time, it means that if there is a motor vehicle entering the intersection at this time, it will not be able to pass when the red light is on. Passing through the intersection smoothly will affect the passage of vehicles in the other direction after the lights are changed. Therefore, it is not suitable to enter the motor vehicle in this direction of the intersection. The prompt unit reminds the motor vehicle not to enter the intersection again. At this time, in order to facilitate the driver to know the condition of the road section ahead, the prompt unit is used to remind the driver that there is an intersection congestion ahead, and the driver needs to stop outside the stop line and wait.

S4: When the prompt unit prompts motor vehicles not to enter the intersection, record each motor vehicle that continues to cross the stop line with a green light; the recorded content includes taking pictures of each motor vehicle that crosses the stop line and automatically identifying its license plate number, and The license plate number recognized by it is automatically marked on the image of the motor vehicle in the screen, and it will always follow the motor vehicle until the motor vehicle moves out of the tracking range. By marking the license plate number in this way, it is possible to clearly know the license plate number of an illegal motor vehicle that is blocked by the vehicle behind in a congested state.

S5: When it is detected that the signal light in the above direction is a red light, record the motor vehicles that cross the stop line when the red light is on, and time each vehicle that is stranded at the intersection. After the screenshot of the image marked with the license plate number is synthesized with the image with the license plate number of the motor vehicle entering the intersection when the green light is on, it is sent to the green light follow-up illegal behavior database.

Through this method, when the intersection is about to be congested, the vehicle can be reminded not to enter the intersection by means of a reminder, so it can effectively prevent the occurrence of motor vehicles seeing the green light and continue to follow up when the intersection is congested, ensuring the safety of the intersection. Unimpeded traffic in the direction of no congestion.

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 (8)

1. point out and the system preventing motor vehicle green light follow-up from blocking crossing and making a dash across the red light, it is characterized in that, comprising:

Video tracking unit: real-time continuous follows the tracks of the every platform motor vehicle entering crossing;

Speed detection unit, detects the speed of crossing every platform motor vehicle of stop line;

Tip element: when crossing is about to get congestion, prompt machine motor-car does not enter crossing;

Control module: whether the signal lamp judging current direction is green light, be then computing machine motor-car by the transit time T required for crossing, and t excess time of Real-Time Monitoring this clearance direction green light current, if required transit time T is greater than green light t excess time, then illustrate that crossing is about to block up, and does not enter crossing by Tip element prompt machine motor-car;

Follow-up record cell: after Tip element prompt machine motor-car does not enter crossing, every platform motor vehicle green light being continued to pass beyond to stop line carries out record;

Make a dash across the red light record cell: carry out record to the motor vehicle crossing stop line during when red;

Timing unit: after detecting that the signal lamp in clearance direction becomes red light, crosses stop line to green light and is trapped in every chassis timing at crossing, being greater than to the illegal activities record of the motor vehicle of setting-up time threshold value the hold-up time.

2. system according to claim 1, is characterized in that, described control module comprises transit time computation subunit, calculates this motor vehicle by the transit time needed for crossing, comprising:

T=L/V, wherein, the T=current time needed by crossing, the stop line in L=clearance direction is to the length of the other side's stop line; Speed during stop line crossed by the every platform motor vehicle in v=clearance direction.

3. system according to claim 1 and 2, it is characterized in that, described record cell comprises tracking subelement, the every platform motor vehicle crossing stop line is taken pictures and automatically identified its number-plate number, and by its number-plate number automatic marking on the image of this motor vehicle in picture, and follow this motor vehicle all the time until this motor vehicle shifts out following range.

4. according to the arbitrary described system of claim 1-3, it is characterized in that, in described timing unit, the process of carrying out illegal activities record comprises: when red light lights, when the mark being greater than setting threshold value the hold-up time in crossing has the image sectional drawing motor vehicle image of motor vehicle trade mark code and a green light this motor vehicle enter crossing have the image of the number-plate number to synthesize after, send into green light and to follow up illegal activities database.

5. point out and prevent motor vehicle green light from following up and block crossing and a method of making a dash across the red light, it is characterized in that, comprising:

Real-time continuous follows the tracks of the every platform motor vehicle entering crossing;

Detect the speed of crossing every platform motor vehicle of stop line;

Whether the signal lamp judging current direction is green light, be then computing machine motor-car by the transit time T required for crossing, and t excess time of Real-Time Monitoring this clearance direction green light current, if required transit time T is greater than green light t excess time, then illustrate that crossing is about to block up, and does not enter crossing by Tip element prompt machine motor-car;

After Tip element prompt machine motor-car does not enter crossing, every platform motor vehicle green light being continued to pass beyond to stop line carries out record;

After detecting that the signal lamp in clearance direction becomes red light, record is carried out to the motor vehicle crossing stop line during when red, and to entering stop line during green light and being trapped in every chassis timing at crossing, be greater than to the motor vehicle of setting-up time threshold value the hold-up time, carry out illegal activities record.

6. method according to claim 5, it is characterized in that, calculating every platform motor vehicle by the process of the transit time needed for crossing is: calculate T=L/V, wherein, the time that the every platform motor vehicle of T=is needed by crossing, the stop line in L=clearance direction is to the length of the other side's stop line; Speed during stop line crossed by the every platform motor vehicle in v=clearance direction.

7. the method according to claim 5 or 6, it is characterized in that, the process that the described every platform motor vehicle continuing to pass beyond stop line to green light records, comprise: the every platform motor vehicle crossing stop line is taken pictures and automatically identified its number-plate number, and the number-plate number automatic marking identified is on the image of this motor vehicle in picture, and follow this motor vehicle all the time until this motor vehicle shifts out following range.

8. method according to claim 7, it is characterized in that, the described motor vehicle being greater than to setting-up time threshold value the hold-up time, the process of carrying out illegal activities record comprises: after mark is had when red image sectional drawing and this motor vehicle during green light of hold-up time and Automobile registration number enter crossing have the image of the number-plate number to synthesize after, send into green light and to follow up illegal activities database.