CN112349094B - Method and system for evaluating motor vehicle passing efficiency of signal lamp-free control intersection - Google Patents
Method and system for evaluating motor vehicle passing efficiency of signal lamp-free control intersection Download PDFInfo
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- CN112349094B CN112349094B CN202011033330.2A CN202011033330A CN112349094B CN 112349094 B CN112349094 B CN 112349094B CN 202011033330 A CN202011033330 A CN 202011033330A CN 112349094 B CN112349094 B CN 112349094B
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
Abstract
The invention provides a method and a system for evaluating the motor vehicle passing efficiency of a signal-free lamp control intersection, wherein a target intersection collects vehicle information and pedestrian information in an evaluation range in real time by using accurate continuous tracking detection equipment, and the specific method comprises a first direction road section and a second direction road section which are mutually crossed, and the method comprises the following steps: acquiring vehicle information outside a parking line on a first direction road section and a second direction road section in a preset time period; calculating a first loss time of a vehicle on a first direction road section waiting for the vehicle on a second direction road section to drive through the target intersection according to the vehicle information, and a second loss time of the vehicle on the second direction road section waiting for the vehicle on the first direction road section to drive through the target intersection; and analyzing the passing efficiency of the target intersection according to the first loss time and the second loss time. According to the invention, the first loss time and the second loss time are compared, so that the traffic efficiency of the target intersection without signal lamp control can be objectively and accurately evaluated.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to a method and a system for evaluating the passing efficiency of motor vehicles at a signal-lamp-free control intersection.
Background
The criss-cross road network forms intersections, but in a city, the intersections capable of being provided with signal lamp control according to national standards only account for a small part, and most intersections are controlled by traffic marking lines, signs and the like. However, when the flow of pedestrians, non-motor vehicles and motor vehicles at the intersection reaches a certain degree, the motor vehicles are controlled to give way only by means of traffic markings and signs, and the requirements of pedestrian safety and high-efficiency passing of the motor vehicles through the intersection cannot be met at the same time.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that the traffic efficiency of the motor vehicles at the signal lamp-free control intersection cannot be quantitatively evaluated in real time, accurately and objectively, and provides a method and a system for evaluating the traffic efficiency of the motor vehicles at the signal lamp-free control intersection.
The invention provides a method for evaluating the motor vehicle passing efficiency of a signal lamp-free control intersection, wherein a target intersection comprises a first direction road section and a second direction road section which are mutually crossed, and the method for evaluating the motor vehicle passing efficiency of the signal lamp-free control intersection comprises the following steps: acquiring vehicle information outside a parking line on a first direction road section and a second direction road section in a preset time period; calculating a first loss time of a vehicle on a first direction road section waiting for the vehicle on a second direction road section to drive through the target intersection according to the vehicle information, and a second loss time of the vehicle on the second direction road section waiting for the vehicle on the first direction road section to drive through the target intersection; and analyzing the passing efficiency of the target intersection according to the first loss time and the second loss time.
Optionally, the obtaining of the vehicle information outside the parking line on the first direction road section and the second direction road section within the preset time period includes: continuously acquiring image data on a road section in a first direction and a road section in a second direction within a preset time period through image detection equipment; and extracting the vehicle information outside the parking line on the first direction road section and the second direction road section according to the image data.
Optionally, calculating a first loss time for a vehicle on a first direction road segment to wait for the vehicle on a second direction road segment to drive through a target intersection according to the vehicle information, comprising: the method comprises the steps of obtaining a first time when a first vehicle waiting outside a parking line in a first direction parks and a second time when the first vehicle outside the parking line passes; respectively acquiring waiting time of all vehicles waiting outside a parking line in a first direction between a first time and a second time; and summing the waiting time of all vehicles waiting outside the stopping line in the first direction between the first time and the second time to obtain the first lost time.
Optionally, calculating a first loss time for a vehicle on a first direction road segment to wait for the vehicle on a second direction road segment to drive through a target intersection according to the vehicle information, comprising: calculating a third moment when the last vehicle in the second direction exits the target intersection according to the vehicle information in the second direction; calculating the time taken by each vehicle in the first direction to reach the parking position from the current position according to the vehicle information in the first direction; calculating the virtual waiting time of each vehicle in the first direction according to the time taken by each vehicle to reach the parking position from the current position and the third time; and summing the virtual waiting time of each vehicle in the first direction to obtain a first loss time.
Optionally, calculating a second loss time for a vehicle on the second direction road segment to wait for the vehicle on the first direction road segment to drive through the target intersection according to the vehicle information, comprising: calculating the fourth moment when the last vehicle in the first direction exits the target intersection according to the vehicle information in the first direction; calculating the time taken by each vehicle in the second direction to reach the parking position from the current position according to the vehicle information in the second direction; calculating the virtual waiting time of each vehicle in the second direction according to the time taken by each vehicle to reach the parking position from the current position and the fourth time; and summing the virtual waiting time of each vehicle in the second direction to obtain a second loss time.
Optionally, analyzing the traffic efficiency of the target intersection according to the first loss time and the second loss time, including: if the first loss time is greater than the second loss time, judging that the passing efficiency of the target intersection is poor; if the first loss time is less than the second loss time, judging that the passing efficiency of the target intersection is excellent; and if the first loss time is equal to the second loss time, evaluating the passing efficiency of the target intersection according to the number of vehicles running in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection.
Optionally, the evaluating the traffic efficiency of the target intersection according to the number of vehicles driving in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection includes: acquiring the number of vehicles running in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection; if the number of vehicles running in the intersection of the target intersection is larger than the number of vehicles waiting outside the target intersection, judging that the passing efficiency of the target intersection is excellent; if the number of vehicles running in the intersection of the target intersection is smaller than the number of vehicles waiting outside the target intersection, judging that the passing efficiency of the target intersection is poor; if the number of vehicles traveling in the intersection of the target intersection is equal to the number of vehicles waiting outside the target intersection, it is determined that the traffic efficiency of the target intersection is good.
Optionally, after analyzing the traffic efficiency of the target intersection according to the first loss time and the second loss time, the method for evaluating the motor vehicle traffic efficiency of the signal-free control intersection provided by the invention further comprises: and adjusting the control mode of the intersection controlled by the signal lamp according to the analyzed result of the traffic efficiency.
Optionally, the method for evaluating the passing efficiency of the motor vehicles at the intersection without the control of the signal lamp, provided by the invention, further comprises the following steps: extracting pedestrian information, waiting vehicle information outside the stop lines in all directions of the target intersection and idle information of the target intersection according to the image data; calculating third loss time according to the pedestrian information, the waiting vehicle information outside the stop lines in all directions of the target intersection and the idle information of the target intersection; and if the third loss time is greater than the preset loss threshold value, sending alarm information.
Optionally, the step of calculating a third loss time according to the pedestrian information, the waiting vehicle information outside the stop line in each direction of the target intersection, and the idle information of the target intersection includes: acquiring a first target time period when a pedestrian passes through a target intersection according to the pedestrian information; determining a second target time period for waiting for vehicles outside the parking line of the target intersection according to the information of waiting vehicles outside the parking line of each direction of the target intersection; determining a third target time period when no vehicle passes in the target road junction according to the idle information of the target road junction; determining a target time period when a pedestrian passes through the target intersection, a vehicle waits outside a parking line of the target intersection, and no vehicle passes through the target intersection according to the first target time period, the second target time period and the third target time period; and calculating the third loss time according to the waiting time of all waiting vehicles outside the parking line in the target time period and the target time period.
The invention provides a traffic efficiency evaluation system for motor vehicles at a signal-lamp-free control intersection, wherein a target intersection comprises a first direction road section and a second direction road section which are mutually crossed, and the traffic efficiency evaluation system for the motor vehicles at the signal-lamp-free control intersection comprises: the system comprises a vehicle information acquisition module, a parking line acquisition module and a vehicle information acquisition module, wherein the vehicle information acquisition module is used for acquiring vehicle information outside the parking line on a first direction road section and a second direction road section in a preset time period; the loss time calculation module is used for calculating first loss time when the vehicle on the first direction road section waits for the vehicle on the second direction road section to drive through the target intersection and second loss time when the vehicle on the second direction road section waits for the vehicle on the first direction road section to drive through the target intersection according to the vehicle information; and the traffic efficiency analysis module is used for analyzing the traffic efficiency of the target intersection according to the first loss time and the second loss time.
The third aspect of the present invention provides a computer apparatus comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executable by the at least one processor to perform the signaless control intersection motor vehicle traffic efficiency evaluation method according to the first aspect of the present invention.
A fourth aspect of the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the method for evaluating motor vehicle traffic efficiency at a signal-free control intersection according to the first aspect of the present invention.
The technical scheme of the invention has the following advantages:
1. the method for evaluating the motor vehicle passing efficiency of the signal lamp-free control intersection comprises the steps of obtaining vehicle information outside a stop line on a first direction road section and a second direction road section of a target intersection in a preset time period, then obtaining first loss time when a vehicle on the first direction road section waits for a vehicle on the second direction road section to pass through the target intersection and second loss time when the vehicle on the second direction road section waits for the vehicle on the first direction road section to pass through the target intersection according to the vehicle information, and analyzing the passing efficiency of the target intersection according to the first loss time and the second loss time. At the intersection without signal lamp control, vehicles need to pass through the intersection depending on the traffic passing rule, but national uniform traffic passing rules are not applicable to all intersections, whether the traffic passing rule is applicable to the target intersection or not is judged, and the most direct method is to judge whether the traffic passing rule causes waste of intersection resources of the target intersection or not.
2. The method for evaluating the motor vehicle passing efficiency of the signal lamp-free control intersection provided by the invention analyzes the passing efficiency of the signal lamp-free control intersection and adjusts the control mode of the target intersection according to the analysis result. The control mode is adjusted based on the analysis result, so that the adjusted control mode is more consistent with the actual condition of the target intersection, and the intersection resources of the target intersection can be fully utilized.
3. The invention provides a signalless control intersection motor vehicle traffic efficiency evaluation system, which is used for acquiring vehicle information outside a stop line on a first direction road section and a second direction road section of a target intersection in a preset time period, then acquiring first loss time when a vehicle on the first direction road section waits for the vehicle on the second direction road section to drive through the target intersection and second loss time when the vehicle on the second direction road section waits for the vehicle on the first direction road section to drive through the target intersection according to the vehicle information, and analyzing the traffic efficiency of the target intersection according to the first loss time and the second loss time. At the intersection without signal lamp control, vehicles need to pass through the intersection depending on the traffic passing rule, but national uniform traffic passing rules are not applicable to all intersections, whether the traffic passing rule is applicable to the target intersection or not is judged, and the most direct method is to judge whether the traffic passing rule causes waste of intersection resources of the target intersection or not.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1-5 are flowcharts illustrating a specific example of a method for evaluating the traffic efficiency of motor vehicles at a signal-lamp-free control intersection according to an embodiment of the present invention;
FIG. 6 is a schematic block diagram of a specific example of a traffic efficiency evaluation system for motor vehicles at a signal-lamp-free controlled intersection according to an embodiment of the present invention;
fig. 7 is a schematic block diagram of a computer device according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
At an intersection without signal lamp control, a vehicle needs to pass through the intersection according to a traffic passing rule, for example, when a deceleration traffic passing sign exists at the intersection, the vehicle in the direction needs to pass through the intersection in another direction, and in order to meet the requirement of safe travel of pedestrians, the traffic efficiency of the intersection without signal lamp control needs to be timely and accurately acquired, so that the control mode of a target intersection is adjusted.
The embodiment of the invention provides a method for evaluating the motor vehicle passing efficiency of a signal lamp-free control intersection, wherein a target intersection comprises a first direction road section and a second direction road section which are mutually crossed, as shown in figure 1, the method for evaluating the motor vehicle passing efficiency of the signal lamp-free control intersection comprises the following steps:
step S10: the method comprises the steps of obtaining vehicle information outside a parking line on a first direction road section and a second direction road section in a preset time period. The preset time period refers to a time period studied by the user, and may be, for example, 10 minutes, 20 minutes, or the like. In a specific embodiment, an image detection device may be disposed at a target intersection without signal lamp control, and the image detection device tracks and detects states of all motor vehicles, non-motor vehicles, and pedestrians in and outside the intersection in real time, including information of current positions and moving speeds of the motor vehicles, the non-motor vehicles, and the pedestrians, and is not limited to vehicle information outside a parking line on a first direction road section and a second direction road section within the preset time period.
Step S20: a first loss time for a vehicle on the first direction road segment to wait for the vehicle on the second direction road segment to drive through the target intersection and a second loss time for the vehicle on the second direction road segment to wait for the vehicle on the first direction road segment to drive through the target intersection are calculated according to the vehicle information.
In the embodiment of the invention, the first direction is determined as the direction with lower priority, and the second direction is determined as the direction with higher priority, that is, when vehicles come out of the parking lines of the first direction and the second direction, the vehicles on the road section in the first direction should be parked and wait.
The first loss time is the sum of the waiting times of all vehicles outside the parking line in the first direction, for example: during the vehicle passing in the second direction, three vehicles are waiting outside the parking line in the first direction, the waiting time of the first vehicle is 5 minutes, the waiting time of the second vehicle is 3 minutes, and the waiting time of the third vehicle is 1 minute, so that the first loss time is 5+3+1 to 9 minutes.
In addition, if the first loss time and the second loss time are calculated in the same time slot, the vehicle in the first direction is changed from 8:00 starts parking waiting until the vehicle in the first direction starts after the vehicle in the second direction of 8:10 passes through the target crossing, and the calculated first loss time is the loss time when the vehicle in the first direction waits for the vehicle in the second direction to pass through the target crossing in 8:00-8:10, and the second loss time is the loss time when the vehicle in the second direction waits for the vehicle in the first direction to pass through the target crossing in 8:00-8: 10.
Step S30: and analyzing the passing efficiency of the target intersection according to the first loss time and the second loss time.
The method for evaluating the motor vehicle passing efficiency of the signal lamp-free control intersection comprises the steps of obtaining vehicle information outside a stop line on a first direction road section and a second direction road section of a target intersection in a preset time period, then obtaining first loss time when a vehicle on the first direction road section waits for the vehicle on the second direction road section to pass through the target intersection and second loss time when the vehicle on the second direction road section waits for the vehicle on the first direction road section to pass through the target intersection according to the vehicle information, and analyzing the passing efficiency of the target intersection according to the first loss time and the second loss time. At the intersection without signal lamp control, vehicles need to pass through the intersection depending on the traffic passing rule, but national uniform traffic passing rules are not applicable to all intersections, whether the traffic passing rule is applicable to the target intersection or not is judged, and the most direct method is to judge whether the traffic passing rule causes waste of intersection resources of the target intersection or not.
In an optional embodiment, in the method for evaluating the passing efficiency of a motor vehicle at a signal-free control intersection provided in the embodiment of the present invention, the step S10 specifically includes:
firstly, continuously acquiring image data on the first direction road section and the second direction road section in a preset time period through an image detection device.
Then, vehicle information outside the parking line on the first direction section and the second direction section is extracted according to the image data. The vehicle information outside the parking line includes information such as the current position and moving speed of each vehicle.
In an alternative embodiment, in the step S20, as shown in fig. 2, the first loss time for the vehicle on the first direction road segment to wait for the vehicle on the second direction road segment to drive through the target intersection is calculated by:
step S211: the method comprises the steps of obtaining a first time when a first vehicle waiting outside a parking line in a first direction parks and a second time when the first vehicle outside the parking line passes through.
Step S212: the waiting times of all vehicles waiting outside the parking line in the first direction between the first time and the second time are respectively acquired. In an embodiment of the invention, the waiting time of each waiting vehicle is the time between the time of parking and the time of activation of the first vehicle outside the parking line.
Step S213: and summing the waiting time of all vehicles waiting outside the stopping line in the first direction between the first time and the second time to obtain the first lost time.
In an alternative embodiment, in the step S20, as shown in fig. 3, the first loss time for the vehicle on the first direction road segment to wait for the vehicle on the second direction road segment to drive through the target intersection is calculated by:
step S221: and calculating a third moment when the last vehicle in the second direction exits the target intersection according to the vehicle information in the second direction, wherein in the embodiment of the invention, the traffic priority in the first direction is lower than that in the second direction, so that when vehicles drive from outside the parking lines in the first direction and the second direction, the vehicles on the road section in the first direction need to stop and wait until the last vehicle on the road section in the second direction exits the target intersection. In a particular embodiment, the third time may be calculated based on the current position of the last vehicle in the target second direction and the average vehicle speed. It should be noted that the last vehicle in the second direction is a vehicle whose distance from the previous vehicle is less than a preset threshold and whose distance from the next vehicle is greater than a preset threshold, for example, when the distance between the target vehicle and the previous vehicle in the second direction is less than 100 meters, the vehicle in the first direction needs to yield, but when the distance between the target vehicle and the previous vehicle is greater than 100 meters, the time for the target vehicle to travel through the distance is sufficient for at least one vehicle waiting in the first direction to travel through the target intersection, so the vehicle in the first direction does not need to yield a vehicle that is more than 100 meters away from the previous vehicle, and 100 meters are merely taken as an example, and can be adjusted according to actual needs, for example, when the speeds of the vehicles in the second direction and the first direction are generally faster, the value of the preset threshold can be increased.
Step S222: the time taken for each vehicle in the first direction to reach the parking position from the current position is calculated based on the vehicle information in the first direction.
Step S223: the waiting time of each vehicle in the first direction is calculated based on the time taken for each vehicle to reach the parking position from the current position and the third time. The waiting time of each vehicle is a value obtained by subtracting the time at which the vehicle reaches the parking position from the third time.
Step S224: and summing the waiting time of each vehicle in the first direction to obtain a first loss time.
The evaluation of the first loss time through the above-described steps S211 to S213 is calculated based on the waiting time of the actual occurrence of the vehicle in the first direction, and the first loss time can be budgeted to the time when the vehicle in the first direction has not started waiting through the above-described steps S221 to S224. In practical application, one of the methods can be selected to calculate the first loss time according to actual requirements. For example, if it is only necessary to determine the traffic efficiency of the target intersection within a certain period of time, the first loss time may be evaluated in the above steps S211 to S213 in order to reduce the amount of calculation, but if it is desired to control the traffic and prohibited states of the target intersection in each direction at the next time by the first loss time, the first loss time needs to be evaluated in the above steps S221 to S224.
In an alternative embodiment, in the step S20, as shown in fig. 4, the second loss time for the vehicle on the second direction road segment to wait for the vehicle on the first direction road segment to drive through the target intersection is calculated by:
step S231: the fourth moment that the last vehicle in the first direction is driven out of the target intersection is calculated according to the vehicle information in the first direction, because the passing priority in the first direction is smaller than that in the second direction, when vehicles are driven outside the parking lines in the first direction and the second direction, the first direction should be stopped and wait until all the vehicles in the second direction drive through the target intersection, but in order to analyze the passing efficiency of the target intersection, a second loss time that the vehicles on the road section in the second direction wait for the vehicles on the road section in the first direction to drive through the target intersection needs to be calculated, so when the second loss time is calculated, the vehicles on the road section in the second direction need to be stopped and wait for the vehicles in the first direction to pass through the intersection. In one embodiment, the fourth time may be calculated based on the current position of the last vehicle in the first direction and the average vehicle speed. It should be noted that the last vehicle in the first direction is a vehicle whose distance from the previous vehicle is less than the preset threshold and whose distance from the next vehicle is greater than the preset threshold, and the detailed description refers to the step S221 above.
Step S232: the time taken for each vehicle in the second direction to reach the parking position from the current position is calculated based on the vehicle information in the second direction.
Step S233: the waiting time of each vehicle in the second direction is calculated based on the time taken for each vehicle to reach the parking position from the current position and the fourth time. The waiting time of each vehicle is a value obtained by subtracting the time at which the vehicle reaches the parking position from the fourth time.
Step S234: and summing the waiting time of each vehicle in the second direction to obtain a second loss time.
In an optional embodiment, the step S30 specifically includes:
if the first loss time is greater than the second loss time, judging that the passing efficiency of the target intersection is poor; and if the first loss time is less than the second loss time, judging that the passing efficiency of the target intersection is excellent.
Because the passing priority of the first direction is lower than that of the second direction, when the first loss time of the first direction is longer than the second loss time of the second direction, the current traffic-giving rule causes the passing efficiency of the target intersection to be poor, otherwise, the current traffic-giving rule causes the passing efficiency of the target intersection to be good.
And if the first loss time is equal to the second loss time, evaluating the passing efficiency of the target intersection according to the number of vehicles running in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection. Even if the first loss time and the second loss time are equal, the current passing rule is not applicable to the target intersection, and the passing efficiency needs to be further analyzed through the passing quantity and the waiting quantity of the vehicles on the road sections in two directions.
In an alternative embodiment, the step of evaluating the traffic efficiency of the target intersection according to the number of vehicles driving in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection comprises:
acquiring the number of vehicles running in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection;
if the number of vehicles running in the intersection of the target intersection is larger than the number of vehicles waiting outside the target intersection, judging that the passing efficiency of the target intersection is excellent;
if the number of vehicles running in the intersection of the target intersection is smaller than the number of vehicles waiting outside the target intersection, judging that the passing efficiency of the target intersection is poor;
if the number of vehicles traveling in the intersection of the target intersection is equal to the number of vehicles waiting outside the target intersection, it is determined that the traffic efficiency of the target intersection is good.
In an alternative embodiment, as shown in fig. 5, after step S30, the method for evaluating the traffic efficiency of a motor vehicle at a signal-free control intersection according to an embodiment of the present invention further includes:
step S40: for example, if the traffic efficiency of the target intersection obtained by the analysis is poor in a period of time, which indicates that the current yielding rule is not applicable to the target intersection, the signal lamp can be installed at the target intersection, and the control time lengths of the red light and the green light in different directions can be adjusted according to the analysis result, or after the first loss time and the second loss time are obtained through the steps S221 to S224 and S231 to S234, the passing and forbidden states in the first direction and the second direction can be adjusted at the next time, for example, when the estimated first loss time is greater than the second loss time, the vehicle on the first direction section can be controlled to pass at the next time, and the vehicle on the second direction section can be controlled to wait at the next time.
According to the method for evaluating the motor vehicle passing efficiency of the signal lamp-free control intersection, provided by the embodiment of the invention, after the passing efficiency of the signal lamp-free control intersection is analyzed, the control mode of the target intersection is adjusted according to the analysis result. The control mode is adjusted based on the analysis result, so that the adjusted control mode is more consistent with the actual condition of the target intersection, and the intersection resources of the target intersection can be fully utilized.
In practical situations, the intersection may also have non-motor vehicles, pedestrians, and the like besides vehicles, and the priority of the right of way of the pedestrian is the highest, for this situation, in an optional embodiment, the method for evaluating the motor vehicle passing efficiency at the intersection controlled by the signal lamp provided by the present invention further includes:
and extracting pedestrian information, waiting vehicle information outside the stop lines in all directions of the target intersection and idle information of the target intersection according to the image data. In the embodiment of the invention, the pedestrian information specifically refers to the time of a pedestrian passing through a target intersection, the waiting vehicle information outside the stop line in each direction of the target intersection specifically refers to the vehicle waiting time, and the intersection idle time specifically refers to the time when no vehicle passes through the target intersection.
Calculating third loss time according to the pedestrian information, the waiting vehicle information outside the stop lines in all directions of the target intersection and the idle information of the target intersection;
and if the third loss time is greater than the preset loss threshold value, sending alarm information. In a specific embodiment, if the relevant department receives the alarm information, it indicates that the passing of the motor vehicle at the target intersection is greatly influenced by the pedestrian, and therefore, corresponding management and control measures need to be taken, for example, signal lights are arranged at the target intersection. For the intersection without signal lamp control, the passing of pedestrians can cause the situation that no vehicles pass in the target intersection but vehicles wait outside the parking line, when no signal lamp control is performed, the passing priority of the pedestrians is highest, even if only one person passes through the target intersection, the vehicles also need to be stopped and waited, as the pedestrians cannot be controlled to pass through the target intersection in a centralized time period, and scattered pedestrians cause unnecessary loss time of the target intersection, measures need to be taken to enable the pedestrians to pass through the target intersection in the centralized time period, and therefore the passing efficiency of motor vehicles at the target intersection is improved.
In an optional embodiment, the step of calculating the third loss time according to the pedestrian information, the waiting vehicle information outside the stop line in each direction of the target intersection and the idle information of the target intersection specifically includes:
acquiring a first target time period when a pedestrian passes through a target intersection according to the pedestrian information;
determining a second target time period for waiting for vehicles outside the stop line of the target intersection according to the information of waiting vehicles outside the stop line of each direction of the target intersection;
determining a third target time period when no vehicle passes in the target road junction according to the idle information of the target road junction;
determining a target time period when a pedestrian passes through the target intersection and no vehicle passes through the target intersection, wherein the vehicle waits outside a stop line of the target intersection, and the first target time period, the second target time period and the third target time period are used;
and calculating the third loss time according to the waiting time of all waiting vehicles outside the parking line in the target time period and the target time period. In a specific embodiment, for example, the target time period and the sum of the waiting times of all the waiting vehicles within the target time period may be determined as the third loss time.
When the vehicle actually passes through the target intersection, the reasons for causing the vehicle to stop waiting include that the vehicle gives way, pedestrians give way, the vehicle needs to stop waiting for every time a pedestrian passes through, the signal lamp-free target intersection cannot control the pedestrians to pass through uniformly, and the time taken by each pedestrian to pass through the target intersection is long, so that the passing efficiency of the target intersection is low.
In an optional embodiment, before step S10, the method for evaluating the traffic efficiency of a motor vehicle at a signal-free control intersection according to an embodiment of the present invention further includes:
and judging whether the inside and outside of the intersection of the target intersection meet the passing conditions or not, and judging that the inside and outside of the intersection of the target intersection meet the passing conditions when no barrier is shielded in the inside and outside of the intersection of the target intersection.
If the passing condition is met, judging whether a vehicle is abnormally stopped before and behind a stop line of the target intersection;
if there is no abnormal stop of the vehicle before and after the stop line at the target intersection, the above step S10 is executed.
If the traffic condition is not met inside and outside the intersection of the target intersection or the vehicle is abnormally parked before and behind the stop line of the target intersection, alarm information is sent out, the stop evaluation time and the stop evaluation reason are recorded, and the stop evaluation time and the stop evaluation reason are recorded to provide data support for providing a laborious suggestion.
In an optional embodiment, the step of determining whether there is an abnormal parking of the vehicle before and after the stop line of the target intersection includes:
obtaining the current speed of the target motor vehicle before and after the stop line, judging whether the current speed of the target motor vehicle is zero, and if the current speed of the target motor vehicle is not zero, not executing any operation;
if the current speed of the target motor vehicle is zero, judging whether a motor vehicle is in a preset range in front of the target motor vehicle, and if the motor vehicle is in the preset range in front of the target motor vehicle, not executing any operation, in a specific embodiment, the preset range can be set according to actual requirements, in the embodiment of the invention, judging whether the motor vehicle is in the preset range in front of the target vehicle, and actually judging whether the motor vehicle is in the immediate front of the target vehicle, therefore, in the embodiment of the invention, the preset range can be set to be 1.5 meters;
if no motor vehicle exists in the preset range in front of the target motor vehicle, judging whether a motor vehicle, a non-motor vehicle or a pedestrian passes through the intersection of the target intersection, and if the motor vehicle, the non-motor vehicle or the pedestrian passes through the intersection of the target intersection, not executing any operation;
if motor vehicles, non-motor vehicles or pedestrians pass through the intersection of the target intersection, whether the time that the speed of the target motor vehicle is continuously zero is larger than a preset time threshold value or not is judged, the value of the preset time threshold value can be adjusted according to actual requirements, and in the embodiment of the invention, the preset time threshold value can be determined to be 10 s.
And if the time that the speed of the target motor vehicle is continuously zero is greater than a preset threshold value, determining that the target motor vehicle stops abnormally.
And if the time that the speed of the target motor vehicle is continuously zero is less than or equal to the preset threshold value, returning to the step of obtaining the current speed of the target motor vehicle and judging whether the speed of the target motor vehicle is zero or not.
In the embodiment of the invention, when the traffic efficiency of the motor vehicle at the target intersection is evaluated, whether the traffic conditions are met inside and outside the intersection of the target intersection or not and whether the vehicle is abnormally parked or not before and after the stop line are judged, only when the traffic conditions are met inside and outside the intersection of the target intersection and the vehicle is not abnormally parked before and after the stop line, the traffic efficiency of the motor vehicle at the target intersection can be evaluated according to the vehicle information, so that the influence of abnormal factors on the evaluation result of the traffic efficiency is avoided, and when the traffic conditions are not met inside and outside the intersection of the target intersection or the vehicle is abnormally parked before and after the stop line, an alarm signal can be sent out, so that related personnel can conveniently dredge the road condition in time.
Example 2
The embodiment provides a no signal lamp control crossing motor vehicle efficiency evaluation system that passes, and the target crossing includes the first direction highway section and the second direction highway section of intercrossing, as shown in fig. 6, no signal lamp control crossing motor vehicle efficiency evaluation system that passes includes:
the vehicle information acquiring module 10 is configured to acquire the vehicle information outside the parking line on the first direction road segment and the second direction road segment within the preset time period, and the detailed description is given in the above embodiment 1 to the description of step S10.
The lost time calculation module 20 is configured to calculate, according to the vehicle information, a first lost time for the vehicle on the first direction road segment to wait for the vehicle on the second direction road segment to drive through the target intersection, and a second lost time for the vehicle on the second direction road segment to wait for the vehicle on the first direction road segment to drive through the target intersection, which is described in detail in the foregoing embodiment 1 for the step S20.
The traffic efficiency analysis module 30 is configured to analyze the traffic efficiency of the target intersection according to the first loss time and the second loss time, and the detailed description is described in the above embodiment 1 for the step S30.
The system for evaluating the motor vehicle passing efficiency of the signal lamp-free control intersection, provided by the embodiment of the invention, acquires the vehicle information outside the stop line on the first direction road section and the second direction road section of the target intersection in the preset time period, then acquires the first loss time when the vehicle on the first direction road section waits for the vehicle on the second direction road section to pass through the target intersection and the second loss time when the vehicle on the second direction road section waits for the vehicle on the first direction road section to pass through the target intersection according to the vehicle information, and analyzes the passing efficiency of the target intersection according to the first loss time and the second loss time. At an intersection without signal lamp control, a vehicle needs to pass through the intersection depending on a passing rule, in order to enable the vehicle to pass through a target intersection efficiently, the passing efficiency of the target intersection needs to be evaluated according to the current passing rule, and the most direct method for evaluating the passing efficiency of the target intersection is to judge whether the passing rule causes the waste of intersection resources of the target intersection, so that the system for evaluating the passing efficiency of the motor vehicle at the intersection without signal lamp control can objectively and accurately quantitatively evaluate the passing efficiency of the target intersection by comparing the first loss time with the second loss time.
Example 3
The present invention provides a computer device, as shown in fig. 7, the computer device mainly includes one or more processors 41 and a memory 42, and fig. 7 takes one processor 41 as an example.
The computer device may further include: an input device 43 and an output device 44.
The processor 41, the memory 42, the input device 43 and the output device 44 may be connected by a bus or other means, and fig. 7 illustrates the connection by a bus as an example.
The processor 41 may be a Central Processing Unit (CPU). The Processor 41 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The memory 42 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created from use of the traffic efficiency evaluation system for motor vehicles at the signal-lamp-free control intersection, and the like. Further, the memory 42 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 42 optionally includes memory remotely located from processor 41, and these remote memories may be connected to the signal-less control intersection motor vehicle traffic efficiency evaluation system via a network. The input device 43 may receive a calculation request (or other numerical or character information) input by a user and generate a key signal input related to the system for evaluating the efficiency of motor vehicle passage at the non-signal controlled intersection. The output device 44 may include a display device such as a display screen for outputting the calculation result.
Example 4
The embodiment of the invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions can execute the method for evaluating the traffic efficiency of the motor vehicles at the signal-lamp-free control intersection in any method embodiment. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (8)
1. A method for evaluating the motor vehicle passing efficiency at a signal lamp-free control intersection is characterized in that a target intersection comprises a first direction road section and a second direction road section which are mutually crossed,
the method for evaluating the traffic efficiency of the motor vehicles at the signal lamp-free control intersection comprises the following steps:
acquiring vehicle information outside a parking line on the first direction road section and the second direction road section in a preset time period;
calculating a first loss time of the vehicle on the first direction road section waiting for the vehicle on the second direction road section to drive through the target intersection and a second loss time of the vehicle on the second direction road section waiting for the vehicle on the first direction road section to drive through the target intersection according to the vehicle information;
analyzing the passing efficiency of the target intersection according to the first loss time and the second loss time;
the method for acquiring the vehicle information outside the parking line on the first direction road section and the second direction road section in the preset time period comprises the following steps:
continuously acquiring image data on the first direction road section and the second direction road section within a preset time period through image detection equipment;
extracting vehicle information outside a parking line on the first direction road section and the second direction road section according to the image data;
the method further comprises the following steps:
extracting pedestrian information, waiting vehicle information outside the stop lines in all directions of the target intersection and idle information of the target intersection according to the image data;
calculating third loss time according to the pedestrian information, the waiting vehicle information outside the stop lines in all directions of the target intersection and the idle information of the target intersection;
if the third loss time is greater than the preset loss threshold value, sending alarm information;
the step of calculating the third loss time according to the pedestrian information, the waiting vehicle information outside the stop lines in all directions of the target intersection and the idle information of the target intersection comprises the following steps:
acquiring a first target time period when a pedestrian passes through a target intersection according to the pedestrian information;
determining a second target time period for waiting for vehicles outside the stop line of the target intersection according to the information of waiting vehicles outside the stop line of each direction of the target intersection;
determining a third target time period when no vehicle passes in the target road junction according to the idle information of the target road junction;
determining a target time period when a pedestrian passes through the target intersection and no vehicle passes through the target intersection, wherein the vehicle waits outside a stop line of the target intersection, and the first target time period, the second target time period and the third target time period are used;
and calculating the third loss time according to the waiting time of all waiting vehicles outside the parking line in the target time period and the target time period.
2. The method for evaluating the motor vehicle passing efficiency at the signal lamp-free intersection according to claim 1, wherein calculating a first loss time for a vehicle on the first direction section to wait for the vehicle on the second direction section to pass through the target intersection according to the vehicle information comprises:
acquiring a first time when a first vehicle waiting outside the parking line in the first direction parks and a second time when the first vehicle outside the parking line passes;
respectively acquiring waiting time of all vehicles waiting outside the parking line in the first direction between the first time and the second time;
and summing the waiting time of all vehicles waiting outside the stopping line in the first direction between the first time and the second time to obtain the first lost time.
3. The method for evaluating the motor vehicle passing efficiency at the signal lamp-free intersection according to claim 1, wherein calculating a first loss time for a vehicle on the first direction section to wait for the vehicle on the second direction section to pass through the target intersection according to the vehicle information comprises:
calculating a third moment when the last vehicle in the second direction exits the target intersection according to the vehicle information in the second direction;
calculating the time taken by each vehicle in the first direction to reach a parking position from the current position according to the vehicle information in the first direction;
calculating the waiting time of each vehicle in the first direction according to the time taken by each vehicle to reach the parking position from the current position and the third time;
and summing the waiting time of each vehicle in the first direction to obtain the first lost time.
4. The method for evaluating the motor vehicle passing efficiency at the signal-free lamp control intersection according to claim 2 or 3, wherein calculating a second loss time for the vehicle on the second direction section to wait for the vehicle on the first direction section to pass through the target intersection according to the vehicle information comprises:
calculating a fourth moment when the last vehicle in the first direction exits the target intersection according to the vehicle information in the first direction;
calculating the time taken by each vehicle in the second direction to reach the parking position from the current position according to the vehicle information in the second direction;
calculating the waiting time of each vehicle in the second direction according to the time taken by each vehicle to reach the parking position from the current position and the fourth time;
and summing the waiting time of each vehicle in the second direction to obtain the second loss time.
5. The method for evaluating the motor vehicle passing efficiency at the signal lamp-free control intersection according to any one of claims 1 to 4, wherein the step of analyzing the passing efficiency at the target intersection according to the first loss time and the second loss time comprises the following steps:
if the first loss time is greater than the second loss time, judging that the passing efficiency of the target intersection is poor;
if the first loss time is less than the second loss time, judging that the passing efficiency of the target intersection is excellent;
and if the first loss time is equal to the second loss time, evaluating the passing efficiency of the target intersection according to the number of vehicles running in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection.
6. The method for evaluating the motor vehicle passing efficiency at the signal lamp-free control intersection as claimed in claim 5, wherein the evaluation of the passing efficiency at the target intersection according to the number of vehicles running in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection comprises the following steps:
acquiring the number of vehicles driving in the intersection of the target intersection at the current moment and the number of vehicles waiting outside the intersection of the target intersection;
if the number of vehicles running in the intersection of the target intersection is larger than the number of vehicles waiting outside the target intersection, judging that the passing efficiency of the target intersection is excellent;
if the number of vehicles running in the road mouth of the target road junction is less than the number of vehicles waiting outside the target road junction, judging that the passing efficiency of the target road junction is poor;
and if the number of vehicles running in the road mouth of the target road junction is equal to the number of vehicles waiting outside the target road junction, judging that the passing efficiency of the target road junction is good.
7. The method for evaluating the motor vehicle passing efficiency at the signal lamp-free control intersection according to any one of claims 1 to 6, wherein after analyzing the passing efficiency at the target intersection according to the first loss time and the second loss time, the method further comprises:
and adjusting the control mode of the intersection controlled by the signal lamp according to the analyzed result of the traffic efficiency.
8. A signal lamp control-free intersection motor vehicle passing efficiency evaluation system is characterized in that a target intersection comprises a first direction road section and a second direction road section which are mutually crossed,
the system for evaluating the passing efficiency of the motor vehicles at the signal lamp-free control intersection comprises:
the vehicle information acquisition module is used for acquiring the vehicle information outside the parking line on the first direction road section and the second direction road section in a preset time period;
the lost time calculation module is used for calculating first lost time when the vehicle on the first direction road section waits for the vehicle on the second direction road section to drive through the target intersection and second lost time when the vehicle on the second direction road section waits for the vehicle on the first direction road section to drive through the target intersection according to the vehicle information;
the traffic efficiency analysis module is used for analyzing the traffic efficiency of the target intersection according to the first loss time and the second loss time;
the method for acquiring the vehicle information outside the parking line on the first direction road section and the second direction road section in the preset time period comprises the following steps:
continuously acquiring image data on the first direction road section and the second direction road section within a preset time period through image detection equipment;
extracting vehicle information outside a parking line on the first direction road section and the second direction road section according to the image data;
the system is further configured to:
extracting pedestrian information, waiting vehicle information outside the stop lines in all directions of the target intersection and idle information of the target intersection according to the image data;
calculating third loss time according to the pedestrian information, the waiting vehicle information outside the stop lines in all directions of the target intersection and the idle information of the target intersection;
if the third loss time is greater than the preset loss threshold value, sending alarm information;
calculating third loss time according to pedestrian information, waiting vehicle information outside the stop lines in all directions of the target intersection and idle information of the target intersection, and the method comprises the following steps:
acquiring a first target time period when a pedestrian passes through a target intersection according to the pedestrian information;
determining a second target time period for waiting for vehicles outside the stop line of the target intersection according to the information of waiting vehicles outside the stop line of each direction of the target intersection;
determining a third target time period when no vehicle passes in the target road junction according to the idle information of the target road junction;
determining a target time period when a pedestrian passes through the target intersection and no vehicle passes through the target intersection, wherein the vehicle waits outside a stop line of the target intersection, and the first target time period, the second target time period and the third target time period are used;
and calculating the third loss time according to the waiting time of all waiting vehicles outside the parking line in the target time period and the target time period.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251651A (en) * | 2016-08-24 | 2016-12-21 | 安徽科力信息产业有限责任公司 | A kind of crossing traffic signal control method utilizing plane cognition technology and system |
| CN106997668A (en) * | 2017-04-18 | 2017-08-01 | 北京博研智通科技有限公司 | The method and system of intersection annunciator control efficiency is evaluated using mobile phone mobile data |
| CN108961782A (en) * | 2018-08-21 | 2018-12-07 | 北京深瞐科技有限公司 | Traffic intersection control method and device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3620487B2 (en) * | 2001-09-10 | 2005-02-16 | 住友電気工業株式会社 | Intersection travel time estimation device |
| CN104750963B (en) * | 2013-12-31 | 2017-12-01 | 中国移动通信集团公司 | Intersection delay duration method of estimation and device |
| CN104766495B (en) * | 2015-01-30 | 2018-02-27 | 华南理工大学 | A kind of no signal primary and secondary crossing induction type gives way control system and method |
| CN108281026B (en) * | 2018-03-19 | 2020-11-03 | 武汉大学 | Intersection signal lamp-free vehicle scheduling method in automatic driving environment |
| CN109727470B (en) * | 2019-01-08 | 2020-09-11 | 北京超星未来科技有限公司 | Complex scene passing decision method for distributed intelligent network-connected automobile intersection |
| CN110473419A (en) * | 2019-09-09 | 2019-11-19 | 重庆长安汽车股份有限公司 | A kind of passing method of automatic driving vehicle in no signal lamp intersection |
| CN111260943B (en) * | 2020-02-25 | 2022-02-08 | 河海大学 | Intelligent signal sign system for parking yielding intersection and vehicle passing method |
| CN111127954B (en) * | 2020-03-19 | 2021-10-22 | 安徽中科美络信息技术有限公司 | Safe passing method for vehicles at signal lamp-free intersection |
-
2020
- 2020-09-27 CN CN202011033330.2A patent/CN112349094B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251651A (en) * | 2016-08-24 | 2016-12-21 | 安徽科力信息产业有限责任公司 | A kind of crossing traffic signal control method utilizing plane cognition technology and system |
| CN106997668A (en) * | 2017-04-18 | 2017-08-01 | 北京博研智通科技有限公司 | The method and system of intersection annunciator control efficiency is evaluated using mobile phone mobile data |
| CN108961782A (en) * | 2018-08-21 | 2018-12-07 | 北京深瞐科技有限公司 | Traffic intersection control method and device |
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