CN111429735A - Motor vehicle signal lamp control method and device and computer readable storage medium - Google Patents
Motor vehicle signal lamp control method and device and computer readable storage medium Download PDFInfo
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- CN111429735A CN111429735A CN202010225261.9A CN202010225261A CN111429735A CN 111429735 A CN111429735 A CN 111429735A CN 202010225261 A CN202010225261 A CN 202010225261A CN 111429735 A CN111429735 A CN 111429735A
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- G08—SIGNALLING
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- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
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- G—PHYSICS
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- 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
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- G—PHYSICS
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- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
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- G08G1/095—Traffic lights
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Abstract
The present disclosure provides a motor vehicle signal lamp control method, apparatus, and computer-readable storage medium. The method comprises the following steps: receiving the number, types and running speeds of motor vehicles in a preset direction at a current intersection, the number of non-motor vehicles and the number of pedestrians and the traffic light state of the preset direction at the current intersection; judging the traffic jam condition of the current intersection according to the number, type and running speed of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians; obtaining a motor vehicle right turn signal lamp setting scheme of the current intersection according to the judgment result of the traffic jam condition of the current intersection and the traffic light state of the preset direction of the current intersection; and sending the motor vehicle right turn signal lamp setting scheme of the current intersection to the traffic light control system. According to the traffic jam condition and the traffic light state of the intersection where the motor vehicle right turn signal light is located, the motor vehicle right turn signal light is automatically controlled, the current intersection passing efficiency can be improved, and the road jam condition in the peak period can be effectively relieved.
Description
Technical Field
The disclosure relates to the technical field of signal control, in particular to a method and a device for controlling a motor vehicle signal lamp and a computer readable storage medium.
Background
At present, most intersections have no motor vehicle right turn signal lamps, and only intersections in a few key road sections are provided with motor vehicle right turn signal lamps.
However, the intersection without the signal light for turning right of the motor vehicles often aggravates traffic jam due to the road right conflict between the right-turning motor vehicles and the straight-going motor vehicles and the non-motor vehicles. The control method widely adopted by the intersection with the motor vehicle right turn signal lamp for the motor vehicle right turn signal lamp time is fixed time or manual intervention control time, wherein the fixed time mode cannot carry out intelligent control according to the road traffic condition, so that the crossing traffic efficiency is reduced; the manual intervention mode has low automation degree and wastes a large amount of manpower and material resources.
Disclosure of Invention
The present disclosure has been made to at least partially solve the technical problems occurring in the prior art.
The technical scheme for solving the technical problem of the disclosure is as follows:
according to an aspect of an embodiment of the present disclosure, there is provided a motor vehicle signal lamp control method including:
receiving the number, types and running speeds of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians, which are sent by an intersection monitoring device, and receiving the traffic light state of the preset direction of the current intersection, which is sent by a traffic light control system;
judging the traffic jam condition of the current intersection according to the number, type and running speed of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians;
obtaining a motor vehicle right turn signal lamp setting scheme of the current intersection according to the judgment result of the traffic jam condition of the current intersection and the traffic light state of the preset direction of the current intersection; and the number of the first and second groups,
and sending the motor vehicle right turn signal lamp setting scheme of the current intersection to a traffic light control system.
Optionally, the method further comprises:
setting a left-side straight-going running direction which possibly generates a road right conflict with a right-turning direction of the motor vehicle as a first running direction and setting an opposite left-turning running direction which possibly generates a road right conflict with the right-turning direction of the motor vehicle as a second running direction according to the position of a right-turning signal lamp of the motor vehicle at the current intersection;
then, the traffic jam condition at the current intersection is judged according to the number, type and running speed of the motor vehicles in the preset direction at the current intersection, the number of the non-motor vehicles and the number of the pedestrians, and the specific steps are as follows:
judging whether the motor vehicle in the first driving direction is smooth or congested according to the number N1, the type and the driving speed of the motor vehicle passing through the first driving direction in unit time;
judging whether the non-motor vehicles in the first driving direction are unblocked or jammed according to the number N2 of the non-motor vehicles passing through and the number N3 of pedestrians in the first driving direction in unit time; and the number of the first and second groups,
and judging whether the motor vehicle in the second driving direction is unblocked or jammed according to the number N4, the type and the driving speed of the motor vehicle passing in the unit time of the second driving direction.
Optionally, the determining whether the vehicle in the first driving direction is clear or congested according to the number N1, the type and the driving speed of the vehicles passing through the first driving direction in the unit time includes:
calculating the number N5 of buses with the speed less than a preset first threshold value F1 in the motor vehicles passing in the first driving direction in unit time; and the number of the first and second groups,
judging whether the N5/N1 is larger than a preset third threshold value F3, if so, judging that the motor vehicle in the first driving direction is congested, and if not, judging that the motor vehicle in the first driving direction is unblocked;
the method for judging whether the non-motor vehicle in the first driving direction is unblocked or jammed according to the number N2 of the non-motor vehicles passing through and the number N3 of the pedestrians in the first driving direction in unit time specifically comprises the following steps:
judging whether (N2+ N3) is larger than a preset fifth threshold value F5, if so, judging that the non-motor vehicle in the first driving direction is congested, and if not, judging that the non-motor vehicle in the first driving direction is unblocked;
the step of judging whether the motor vehicle in the second driving direction is unblocked or jammed according to the number N4, the type and the driving speed of the motor vehicle passing through in the unit time of the second driving direction is specifically as follows:
calculating the number N6 of buses with the speed less than a preset second threshold value F2 in the motor vehicles passing in the second driving direction in unit time; and the number of the first and second groups,
and judging whether the N6/N4 is larger than a preset fourth threshold value F4, if so, judging that the motor vehicle in the second driving direction is congested, and if not, judging that the motor vehicle in the second driving direction is unblocked.
Optionally, the setting scheme of the motor vehicle right turn signal lamp at the current intersection is obtained according to the judgment result of the traffic jam condition at the current intersection and the traffic light state of the preset direction at the current intersection, and specifically comprises:
if the motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp in the first driving direction are all red lamps, setting a motor vehicle right turn signal lamp at the current intersection as a green lamp; and the number of the first and second groups,
and if one of the motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp in the first driving direction is a green lamp, setting a motor vehicle right turn signal lamp to be a yellow lamp flashing or a red lamp according to a judgment result of the current intersection traffic jam condition.
Optionally, if one of the motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp in the first driving direction is a green lamp, setting a motor vehicle right turn signal lamp to be a yellow lamp flashing or a red lamp according to a judgment result of the current intersection traffic jam condition, specifically:
if the motor vehicle and the non-motor vehicle in the first driving direction are both smooth and the motor vehicle in the second driving direction is also smooth, setting a motor vehicle right turn signal lamp to flash like yellow; and the number of the first and second groups,
if one of the motor vehicle and the non-motor vehicle in the first driving direction is congested or the motor vehicle in the second driving direction is congested, shortening the flashing time of a yellow light of a right turn signal lamp of the motor vehicle, or setting the right turn signal lamp of the motor vehicle as a red light.
Optionally, the yellow light flickering time period T1 of the rear automobile right turn signal lamp is calculated by the following formula:
T1＝(1-N5/N1)*(1-N6/N4)*((N2+N3)/F5)*T0
in the formula, N1 is the number of passing motor vehicles in the first driving direction in unit time, N2 is the number of passing non-motor vehicles in the first driving direction in unit time, N3 is the number of passing pedestrians in the first driving direction in unit time, N4 is the number of passing motor vehicles in the second driving direction in unit time, N5 is the number of buses with the speed of passing motor vehicles in the first driving direction in unit time being smaller than a preset first threshold F1, N6 is the number of buses with the speed of passing motor vehicles in the second driving direction in unit time being smaller than a preset second threshold F2, F5 is a preset fifth threshold, and T0 is the yellow light flashing time length for shortening the right turn signal light of the front motor vehicle.
Optionally, the method further comprises:
acquiring a highest speed limit V1 of the running speed of the motor vehicle in the first running direction;
acquiring a highest speed limit V2 of the running speed of the motor vehicle in the second running direction;
acquiring the current time, and judging whether the current time is in a preset peak time period or a normal time period;
if the current time is in the preset peak time, the first threshold F1 is V1/3; the second threshold F2 ═ V2/3; third threshold F3 ═ 1/3; the fourth threshold F4 ═ 1/3; a fifth threshold F5 ═ N1 × 10;
if the current time is in the preset peacetime period, the first threshold F1 is V1/2; the second threshold F2 ═ V2/2; third threshold F3 ═ 1/2; the fourth threshold F4 ═ 1/2; the fifth threshold F5 — N1 × 5.
Optionally, the motor vehicle right turn signal lamp is set to be a red lamp, specifically:
if the yellow light flashing time length of the motor vehicle right turn signal lamp is shortened to be zero, the motor vehicle right turn signal lamp is directly set to be a red light.
According to another aspect of an embodiment of the present disclosure, there is provided a motor vehicle signal lamp control apparatus including: the receiving module is arranged for receiving the number, types and running speeds of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians, which are sent by the intersection monitoring device, and receiving the traffic light state of the preset direction of the current intersection, which is sent by the traffic light control system;
the congestion confirmation module is set to judge the traffic congestion condition of the current intersection according to the number, types and running speeds of the motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians received by the receiving module;
the signal lamp setting module is set to obtain a motor vehicle right-turn signal lamp setting scheme of the current intersection according to the judgment result of the traffic jam condition of the current intersection obtained by the jam confirming module and the traffic light state of the current intersection in the preset direction received by the receiving module; and the number of the first and second groups,
and the sending module is used for sending the motor vehicle right turn signal lamp setting scheme of the current intersection obtained by the signal lamp setting module to the traffic light control system.
According to still another aspect of the disclosed embodiments, there is provided a motor vehicle signal lamp control device, comprising a processor and a memory, wherein the memory stores computer instructions, and when the processor executes the computer instructions stored in the memory, the processor executes the motor vehicle signal lamp control method.
According to still another aspect of an embodiment of the present disclosure, there is provided a computer-readable storage medium having one or more programs stored thereon, which when executed by one or more processors, the one or more processors execute the aforementioned motor vehicle signal light control method.
Has the advantages that:
according to the motor vehicle signal lamp control method and device provided by the embodiment of the disclosure, the motor vehicle right turn signal lamp is automatically controlled according to the traffic jam condition and the traffic light state of the intersection where the motor vehicle right turn signal lamp is located, the current intersection passing efficiency can be improved, and the road jam condition in the peak period can be effectively relieved.
Drawings
Fig. 1 is a flowchart of a method for controlling a signal lamp of a motor vehicle according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a control device for a signal lamp of a motor vehicle according to an embodiment of the present disclosure.
In the figure: 1-a receiving module; 2-congestion confirmation module; 3-signal lamp setting module; 4-a sending module.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those skilled in the art, the present disclosure is further described in detail below with reference to the accompanying drawings and examples. It is to be noted that the embodiments of the present disclosure and features of the embodiments may be combined with each other without conflicting with each other.
Fig. 1 is a flowchart of a method for controlling a signal lamp of a motor vehicle according to an embodiment of the present disclosure. As shown in fig. 1, the motor vehicle signal lamp control method includes the following steps S1 to S4:
s1, receiving the number, types and running speeds of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians, which are sent by an intersection monitoring device, and receiving the traffic light state of the preset direction of the current intersection, which is sent by a traffic light tube control system; wherein the preset direction at least comprises a certain straight driving direction and an opposite turning driving direction which generates a road right conflict with the straight driving direction; the intersection monitoring device and the traffic light control system are existing mature devices, and the embodiment of the disclosure only uses the output data, so the structure and the composition of the intersection monitoring device and the traffic light control system are not described again;
s2, judging the traffic jam condition of the current intersection according to the number, type and running speed of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians;
s3, obtaining a motor vehicle right turn signal lamp setting scheme of the current intersection according to the judgment result of the traffic jam condition of the current intersection and the traffic light state of the preset direction of the current intersection;
and S4, sending the setting scheme of the motor vehicle right turn signal lamp of the current intersection to a traffic light control system, so that the traffic light control system correspondingly controls the motor vehicle right turn signal lamp of the current intersection according to the setting scheme.
According to the motor vehicle signal lamp control method, the motor vehicle right turn signal lamp is automatically controlled according to the traffic jam condition and the traffic light state of the intersection where the motor vehicle right turn signal lamp is located, the current intersection passing efficiency can be improved, and the road jam condition in the peak period can be effectively relieved.
The motor vehicle signal lamp control method further includes the following step S0:
s0. sets the left side straight driving direction which may generate the conflict of the right-turn direction of the motor vehicle as the first driving direction and sets the opposite left-turn driving direction which may generate the conflict of the right-turn direction of the motor vehicle as the second driving direction according to the position of the right-turn signal lamp of the motor vehicle at the current intersection.
Step S2 specifically includes the following steps S21 to S23:
s21, judging whether the motor vehicle in the first driving direction is smooth or congested according to the number N1, the type and the driving speed of the motor vehicle passing through the first driving direction in unit time;
s22, judging whether the non-motor vehicles in the first driving direction are smooth or congested according to the number N2 of the non-motor vehicles passing through in the unit time of the first driving direction and the number N3 of pedestrians;
s23, judging whether the motor vehicles in the second driving direction are smooth or congested according to the number N4, types and driving speeds of the motor vehicles passing in the unit time of the second driving direction.
According to the number, the type and the running speed of the motor vehicles passing through the intersection in the first running direction unit time, the number of the non-motor vehicles and the number of pedestrians, whether the motor vehicles and the non-motor vehicles in the first running direction are jammed or not is judged, whether the motor vehicles in the second running direction are jammed or not is judged according to the number, the type and the running speed of the motor vehicles passing through the intersection in the second running direction unit time, and then a motor vehicle right-turn signal lamp setting scheme of the intersection is obtained by combining the traffic light states of the first running direction and the second running direction, so that the jam condition of roads in the first running direction and the second running direction is effectively relieved, and great convenience is brought to people going out.
Wherein, step S21 specifically includes:
calculating the number N5 of buses with the speed less than a preset first threshold value F1 in the motor vehicles passing in the unit time of the first driving direction; and the number of the first and second groups,
and judging whether the N5/N1 is larger than a preset third threshold value F3, if so, judging that the motor vehicle in the first driving direction is congested, and if not, judging that the motor vehicle in the first driving direction is smooth.
Wherein, step S22 specifically includes:
and (N2+ N3) judging whether the speed is larger than a preset fifth threshold value F5, if so, judging that the non-motor vehicle in the first driving direction is congested, and if not, judging that the non-motor vehicle in the first driving direction is unblocked.
Wherein, step S23 specifically includes:
calculating the number N6 of buses with the speed less than a preset second threshold value F2 in the motor vehicles passing in the unit time of the second driving direction; and the number of the first and second groups,
and judging whether the N6/N4 is larger than a preset fourth threshold value F4, if so, judging that the motor vehicle in the second driving direction is congested, and if not, judging that the motor vehicle in the second driving direction is smooth.
In the embodiment of the present disclosure, the first threshold F1, the second threshold F2, the third threshold F3, the fourth threshold F4, and the fifth threshold F5 may be set by a person skilled in the art according to the actual situation of the current intersection traffic stream, which is not limited in the present disclosure. Also, the first threshold value F1, the second threshold value F2, the third threshold value F3, the fourth threshold value F4, and the fifth threshold value F5 are not necessarily constant values, and may be adjusted according to different periods of time.
In a specific embodiment, between step S1 and step S2, the following steps S5 to S7 are further included.
S5, acquiring the highest speed limit V1 of the running speed of the motor vehicle in the first running direction.
S6, acquiring the highest speed limit V2 of the running speed of the motor vehicle in the second running direction.
And S7, acquiring the current time, and judging whether the current time is in a preset peak time period or a normal time period. Wherein the ordinary time period is other time periods except the peak time period. The peak time periods can be determined and adjusted according to actual conditions, for example, in general, the peak time periods can comprise early peak time periods (7 points to 9 points) and late peak time periods (17 points to 19 points); if special conditions such as traffic control are met in the same day, the peak time period is subject to the regulation of a traffic bureau.
Then in steps S21 to S23, the first threshold F1, the second threshold F2, the third threshold F3, the fourth threshold F4, and the fifth threshold F5 are obtained as follows:
if the current time is in the preset peak time, the first threshold F1 is V1/3; the second threshold F2 ═ V2/3; third threshold F3 ═ 1/3; the fourth threshold F4 ═ 1/3; a fifth threshold F5 ═ N1 × 10;
if the current time is in the preset peacetime period, the first threshold F1 is V1/2; the second threshold F2 ═ V2/2; third threshold F3 ═ 1/2; the fourth threshold F4 ═ 1/2; the fifth threshold F5 — N1 × 5.
Based on the foregoing scheme, step S3 specifically includes the following steps S31 and S32:
s31, if the motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp in the first driving direction are all red lamps, setting a motor vehicle right turn signal lamp at the current intersection as a green lamp;
s32, if one of the signal lamp of the motor vehicle, the signal lamp of the non-motor vehicle and the signal lamp of the pedestrian in the first driving direction is green, which indicates that the road with the right-of-way conflict with the right-turn direction of the motor vehicle is congested, setting the signal lamp of the right-turn motor vehicle to be yellow light flickering or red light according to the judgment result of the traffic congestion condition at the current intersection.
In the embodiment of the disclosure, when a road congestion condition that a road right conflict exists with a right-turning direction of the motor vehicle occurs, the motor vehicle right-turning signal lamp is set to be a yellow lamp flashing or a red lamp according to a judgment result of the current intersection traffic congestion condition, so that the number of the motor vehicles turning right is reduced, and the road pressure is relieved.
Wherein, step S32 specifically includes:
if the motor vehicle and the non-motor vehicle in the first driving direction are both smooth and the motor vehicle in the second driving direction is also smooth, setting a motor vehicle right turn signal lamp to flash like yellow to prompt a driver of the motor vehicle right turn to drive carefully; and the number of the first and second groups,
if one of the motor vehicle and the non-motor vehicle in the first driving direction is congested or the motor vehicle in the second driving direction is congested, the yellow light flickering time of a motor vehicle right turn signal lamp is shortened, or the motor vehicle right turn signal lamp is set to be a red light.
In one embodiment, the shortened yellow flashing time period T1 of the right turn signal of the rear vehicle is calculated by the following formula:
T1＝(1-N5/N1)*(1-N6/N4)*((N2+N3)/F5)*T0
in the formula, N1 is the number of passing motor vehicles in the unit time of the first driving direction, N2 is the number of passing non-motor vehicles in the unit time of the first driving direction, N3 is the number of passing pedestrians in the unit time of the first driving direction, N4 is the number of passing motor vehicles in the unit time of the second driving direction, N5 is the number of buses with the speed of passing motor vehicles in the unit time of the first driving direction being less than a preset first threshold value F1, N6 is the number of buses with the speed of passing motor vehicles in the unit time of the second driving direction being less than a preset second threshold value F2, F5 is a preset fifth threshold value, T0 is a yellow light flashing time length for shortening a right turn signal light of a front motor vehicle, and generally, T0 is more than or equal to Max { sensing reaction time + vehicle braking time; the time required for the vehicle to travel its maximum safe stopping distance at normal speed }.
In a specific embodiment, the setting of the right turn signal lamp of the motor vehicle as a red light is specifically as follows:
if the yellow light flashing time of the motor vehicle right turn signal lamp is zero after the time is shortened, which indicates that the road congestion index with the right-of-way conflict with the motor vehicle right turn direction is higher, the motor vehicle right turn signal lamp is directly set as the red light.
The disclosed embodiment also provides a motor vehicle signal lamp control method (not shown in the figures), which includes the following steps S100 to S600.
S100: the receiving module receives the number, types and running speeds of motor vehicles in all directions of the current intersection, the number of non-motor vehicles and the number of pedestrians in all directions of the current intersection, which are sent by the intersection monitoring device, and the traffic light states of all directions of the current intersection, which are sent by the traffic light control system, sets the left-side straight running direction which possibly generates the road right conflict with the right turning direction of the motor vehicles as a first running direction according to the position of the right turning signal light of the current motor vehicles, and sets the opposite left-turning running direction which possibly generates the road right conflict with the right turning direction of the motor vehicles as a second running direction;
s200: the receiving module sends the number of passing motor vehicles N1, the types and the motor vehicle running speed V1 … VN in the unit time of the first running direction, the number of passing non-motor vehicles N2 in the unit time, the number of passing pedestrians N3 in the unit time, the number of passing motor vehicles N4 in the unit time of the second running direction, the types and the motor vehicle running speed W1 … WN to the congestion confirmation module; wherein the motor vehicle type comprises: buses, other vehicles except buses.
S300: the congestion confirmation module judges the traffic congestion condition of the current intersection according to the following steps S301 to S309:
s301: calculating an average value P1 of the running speed of the passing motor vehicle in the first running direction in unit time;
s302: calculating an average value P2 of the running speed of the passing motor vehicle in the second running direction in unit time;
s303: calculating the number N5 of buses with the speed less than a preset first threshold value F1 in the motor vehicles passing in the first driving direction in unit time;
s304: calculating the number N6 of buses with the speed less than a preset second threshold value F2 in the motor vehicles passing in the second driving direction in unit time;
s305: if the N5/N1 is larger than a preset third threshold value F3, judging that the motor vehicle in the first driving direction is congested, otherwise, judging that the motor vehicle in the first driving direction is unblocked;
s306: if the N6/N4 is larger than a preset fourth threshold value F4, judging that the motor vehicle in the second driving direction is congested, otherwise, judging that the motor vehicle in the second driving direction is unblocked;
s307: if (N2+ N3) is larger than a preset fifth threshold value F5, judging that the non-motor vehicle in the first driving direction is congested, otherwise, judging that the non-motor vehicle in the first driving direction is unblocked;
s308: if the motor vehicle jam in the first running direction or the non-motor vehicle jam in the first running direction exists, judging that the first running direction is jammed, otherwise, judging that the first running direction is smooth;
s309: and if the motor vehicle in the second driving direction is congested, judging that the second driving direction is congested, otherwise, judging that the second driving direction is smooth.
Wherein, the system presets a first threshold value F1, a second threshold value F2, a third threshold value F3, a fourth threshold value F4 and a fifth threshold value F5, and can be adjusted according to different time periods.
S400: the signal lamp setting module determines the setting scheme of the right turn signal lamp according to the following steps S401 to S402:
s401: if the signal lamp of the motor vehicle in the first running direction is a red lamp, the signal lamp of the non-motor vehicle in the first running direction is a red lamp and the signal lamp of the pedestrian in the first running direction is a red lamp, setting the signal lamp of the right turn of the motor vehicle at the current intersection as a green lamp;
s402: if the signal lamp of the motor vehicle in the first driving direction is a green lamp or the signal lamp of the non-motor vehicle in the first driving direction is a green lamp or the signal lamp of the pedestrian in the first driving direction is a green lamp, indicating that the road congestion with the right-turn direction of the motor vehicle has the road right conflict, and executing the setting scheme of the right-turn signal lamp of the motor vehicle according to the step S500;
s500: the signal lamp setting module determines the setting scheme of the right turn signal lamp according to the following steps 5401 to S502:
s501: if the motor vehicle in the first driving direction is smooth, the non-motor vehicle in the first driving direction is smooth, and the motor vehicle in the second driving direction is smooth, the motor vehicle right-turn signal lamp is set to be flashing yellow to prompt a driver of the right-turn motor vehicle to drive carefully;
s502: if the motor vehicle jam in the first running direction or the motor vehicle jam in the second running direction or the non-motor vehicle jam in the first running direction, shortening the flashing time of a yellow light of a right turn signal lamp of the motor vehicle or setting the right turn signal lamp of the motor vehicle as a red light, and executing the specific method according to the step S600;
s600: the signal lamp setting module calculates the shortened yellow lamp flickering time of the right turn signal lamp of the motor vehicle according to the following formula:
s601: shortening the flashing time length of the yellow lamp of the right turn signal of the front automobile (1-N5/N1) × (1-N6/N4) × (N2+ N3)/F5);
s602: if the shortened time length of yellow light flashing of the motor vehicle right turn signal lamp is calculated to be 0 according to the formula in the step S601, and the road congestion index which conflicts with the right turn direction of the motor vehicle is high, the motor vehicle right turn signal lamp is directly set to be red.
It should be noted that the sequence of the above steps is only a specific example provided for illustrating the embodiment of the present disclosure, and the present disclosure does not limit the sequence of the above steps, and those skilled in the art can adjust the sequence as required in practical application.
The motor vehicle signal lamp control method provided by the embodiment of the disclosure can automatically and intelligently control the motor vehicle right turn signal lamp according to the road traffic condition, improves the crossing traffic efficiency, effectively relieves the road congestion in the peak period, and brings great convenience to the driver.
Fig. 2 is a schematic diagram of a control device for a signal lamp of a motor vehicle according to an embodiment of the present disclosure. As shown in fig. 2, the signal lamp control apparatus for a motor vehicle includes: the system comprises a receiving module 1, a congestion confirmation module 2, a signal lamp setting module 3 and a sending module 4.
The receiving module 1 is used for receiving the number, types and running speeds of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians, which are sent by the intersection monitoring device, and receiving the traffic light state in the preset direction of the current intersection, which is sent by the traffic light control system;
the congestion confirmation module 2 is set to judge the traffic congestion condition of the current intersection according to the number, types and running speeds of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians received by the receiving module;
the signal lamp setting module 3 is set to obtain a motor vehicle right turn signal lamp setting scheme of the current intersection according to the judgment result of the traffic jam condition of the current intersection obtained by the jam confirming module and the traffic lamp state of the current intersection in the preset direction received by the receiving module; and the number of the first and second groups,
the sending module 4 is set to send the motor vehicle right turn signal lamp setting scheme of the current intersection obtained by the signal lamp setting module to the traffic light tube control system.
The motor vehicle signal lamp control device disclosed by the embodiment of the disclosure automatically controls the motor vehicle right turn signal lamp according to the traffic jam condition and the traffic light state of the intersection where the motor vehicle right turn signal lamp is located, can improve the current intersection passing efficiency, and effectively relieves the road jam condition in the peak period.
In a specific embodiment, the receiving module 1 is further configured to set a left-side straight driving direction which may generate a road right conflict with a right turning direction of the motor vehicle as a first driving direction and set an opposite left-turning driving direction which may generate a road right conflict with the right turning direction of the motor vehicle as a second driving direction according to a position of a right turning signal lamp of the motor vehicle at the current intersection, and the receiving module 1 transmits the number N1, the type and the driving speed of the motor vehicle passing in the first driving direction per unit time, the number N2 of the non-motor vehicles and the number N3 of the pedestrians, and the number N4, the type and the driving speed of the motor vehicle passing in the second driving direction per unit time to the congestion confirmation module 2.
The congestion confirmation module 2 includes: the device comprises a first judgment module, a second judgment module and a third judgment module.
The first judging module is set to judge whether the motor vehicle in the first driving direction is smooth or congested according to the number N1, the type and the driving speed of the motor vehicle passing in the unit time of the first driving direction; the second judging module is set to judge whether the non-motor vehicles in the first driving direction are unblocked or jammed according to the number N2 of the non-motor vehicles passing through in the unit time of the first driving direction and the number N3 of pedestrians; the third judging module is set to judge whether the motor vehicle in the second driving direction is unblocked or jammed according to the number N4, the type and the driving speed of the motor vehicle passing in the unit time of the second driving direction.
In the embodiment of the disclosure, the congestion confirmation module judges whether the motor vehicles and the non-motor vehicles in the first driving direction are congested or not according to the number, types and driving speeds of the motor vehicles passing through the current intersection in the first driving direction unit time, and the number, types and driving speeds of the motor vehicles passing through the current intersection in the second driving direction unit time, and the signal lamp setting module obtains the motor vehicle right-turn signal lamp setting scheme of the current intersection according to the judgment result and the traffic light states of the first driving direction and the second driving direction, so that the congestion conditions of roads in the first driving direction and the second driving direction are effectively relieved, and great convenience is brought to people for traveling.
The first judging module is specifically set to calculate the number N5 of buses with the speed less than a preset first threshold value F1 in the motor vehicles passing through in the unit time of the first driving direction; and the number of the first and second groups,
and judging whether the N5/N1 is larger than a preset third threshold value F3, if so, judging that the motor vehicle in the first driving direction is congested, and if not, judging that the motor vehicle in the first driving direction is smooth.
The second judging module is specifically configured to judge whether (N2+ N3) is greater than a preset fifth threshold F5, and if so, judge that the first driving direction non-motor vehicle is congested, and if not, judge that the first driving direction non-motor vehicle is clear.
The third judging module is specifically set to calculate the number N6 of buses with the speed less than a preset second threshold value F2 in the motor vehicles passing through in the unit time of the second driving direction; and the number of the first and second groups,
and judging whether the N6/N4 is larger than a preset fourth threshold value F4, if so, judging that the motor vehicle in the second driving direction is congested, and if not, judging that the motor vehicle in the second driving direction is smooth.
In the embodiment of the present disclosure, the first threshold F1, the second threshold F2, the third threshold F3, the fourth threshold F4, and the fifth threshold F5 may be set by a person skilled in the art according to the actual situation of the current intersection traffic stream, which is not limited in the present disclosure. Also, the first threshold value F1, the second threshold value F2, the third threshold value F3, the fourth threshold value F4, and the fifth threshold value F5 are not necessarily constant values, and may be adjusted according to different periods of time.
In a specific embodiment, the receiving module 1 is further configured to obtain a highest speed limit V1 of the driving speed of the motor vehicle in the first driving direction; acquiring a highest speed limit V2 of the running speed of the motor vehicle in the second running direction; and acquiring the current time, and judging whether the current time is in a preset peak time period or a normal time period. Wherein the ordinary time period is other time periods except the peak time period. The peak time periods can be determined and adjusted according to actual conditions, for example, in general, the peak time periods can comprise early peak time periods (7 points to 9 points) and late peak time periods (17 points to 19 points); if special conditions such as traffic control are met in the same day, the peak time period is subject to the regulation of a traffic bureau.
In the first to third determination modules, the first threshold F1, the second threshold F2, the third threshold F3, the fourth threshold F4 and the fifth threshold F5 are obtained as follows:
if the current time is in the preset peak time, the first threshold F1 is V1/3; the second threshold F2 ═ V2/3; third threshold F3 ═ 1/3; the fourth threshold F4 ═ 1/3; a fifth threshold F5 ═ N1 × 10;
if the current time is in the preset peacetime period, the first threshold F1 is V1/2; the second threshold F2 ═ V2/2; third threshold F3 ═ 1/2; the fourth threshold F4 ═ 1/2; the fifth threshold F5 — N1 × 5.
Based on the foregoing scheme, the signal lamp setting module 3 includes: the device comprises a first setting module and a second setting module.
The first setting module is set to set a motor vehicle right turn signal lamp at the current intersection as a green lamp if the motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp in the first driving direction are all red lamps; the second setting module is set to set the motor vehicle right turn signal lamp to be yellow lamp flashing or red lamp according to the judgment result of the traffic jam condition of the current intersection if one of the motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp in the first driving direction is a green lamp and indicates that the road with the right of way conflict with the motor vehicle right turn direction is jammed.
In the embodiment of the disclosure, when a road congestion condition that a road right conflict exists with a right-turning direction of the motor vehicle occurs, the motor vehicle right-turning signal lamp is set to be a yellow lamp flashing or a red lamp according to a judgment result of the current intersection traffic congestion condition, so that the number of the motor vehicles turning right is reduced, and the road pressure is relieved.
The second setting module is specifically set to set the motor vehicle right turn signal lamp to flash yellow light to prompt a driver of the right turn motor vehicle to drive carefully if the motor vehicle and the non-motor vehicle in the first driving direction are both smooth and the motor vehicle in the second driving direction is also smooth; and the number of the first and second groups,
if one of the motor vehicle and the non-motor vehicle in the first driving direction is congested or the motor vehicle in the second driving direction is congested, the yellow light flickering time of a motor vehicle right turn signal lamp is shortened, or the motor vehicle right turn signal lamp is set to be a red light.
In one embodiment, the shortened yellow flashing time period T1 of the right turn signal of the rear vehicle is calculated by the following formula:
T1＝(1-N5/N1)*(1-N6/N4)*((N2+N3)/F5)*T0
in the formula, N1 is the number of passing motor vehicles in the unit time of the first driving direction, N2 is the number of passing non-motor vehicles in the unit time of the first driving direction, N3 is the number of passing pedestrians in the unit time of the first driving direction, N4 is the number of passing motor vehicles in the unit time of the second driving direction, N5 is the number of buses with the speed of passing motor vehicles in the unit time of the first driving direction being less than a preset first threshold value F1, N6 is the number of buses with the speed of passing motor vehicles in the unit time of the second driving direction being less than a preset second threshold value F2, F5 is a preset fifth threshold value, T0 is a yellow light flashing time length for shortening a right turn signal light of a front motor vehicle, and generally, T0 is more than or equal to Max { sensing reaction time + vehicle braking time; the time required for the vehicle to travel its maximum safe stopping distance at normal speed }.
In a specific embodiment, the second setting module is further configured to directly set the right turn signal lamp of the motor vehicle to be a red light if the shortened yellow light flashing time of the right turn signal lamp of the motor vehicle is zero, which indicates that the road congestion index having the right-of-way conflict with the right turn direction of the motor vehicle is higher.
The motor vehicle signal lamp control device provided by the embodiment of the disclosure can automatically and intelligently control the motor vehicle right turn signal lamp according to the road traffic condition, improves the crossing traffic efficiency, effectively relieves the road congestion in the peak period, and brings great convenience to the driver.
Based on the same technical concept, the embodiment of the disclosure correspondingly provides a motor vehicle signal lamp control device, which comprises a processor and a memory, wherein the memory stores computer instructions, and when the processor runs the computer instructions stored in the memory, the processor executes the motor vehicle signal lamp control method.
Based on the same technical concept, embodiments of the present disclosure also provide a computer-readable storage medium having one or more programs stored thereon, where when the one or more programs are executed by one or more processors, the one or more processors execute the aforementioned motor vehicle signal light control method.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory, 3Dxpoint or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.
Claims (11)
1. A method of controlling a motor vehicle signal lamp, comprising:
receiving the number, types and running speeds of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians, which are sent by an intersection monitoring device, and receiving the traffic light state of the preset direction of the current intersection, which is sent by a traffic light control system;
judging the traffic jam condition of the current intersection according to the number, type and running speed of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians;
obtaining a motor vehicle right turn signal lamp setting scheme of the current intersection according to the judgment result of the traffic jam condition of the current intersection and the traffic light state of the preset direction of the current intersection; and the number of the first and second groups,
and sending the motor vehicle right turn signal lamp setting scheme of the current intersection to a traffic light control system.
2. The method of claim 1, further comprising:
setting a left-side straight-going running direction which possibly generates a road right conflict with a right-turning direction of the motor vehicle as a first running direction and setting an opposite left-turning running direction which possibly generates a road right conflict with the right-turning direction of the motor vehicle as a second running direction according to the position of a right-turning signal lamp of the motor vehicle at the current intersection;
then, the traffic jam condition at the current intersection is judged according to the number, type and running speed of the motor vehicles in the preset direction at the current intersection, the number of the non-motor vehicles and the number of the pedestrians, and the specific steps are as follows:
judging whether the motor vehicle in the first driving direction is smooth or congested according to the number N1, the type and the driving speed of the motor vehicle passing through the first driving direction in unit time;
judging whether the non-motor vehicles in the first driving direction are unblocked or jammed according to the number N2 of the non-motor vehicles passing through and the number N3 of pedestrians in the first driving direction in unit time; and the number of the first and second groups,
and judging whether the motor vehicle in the second driving direction is unblocked or jammed according to the number N4, the type and the driving speed of the motor vehicle passing in the unit time of the second driving direction.
3. The method of claim 2,
the step of judging whether the motor vehicle in the first driving direction is smooth or congested according to the number N1, the type and the driving speed of the motor vehicle passing through in the unit time of the first driving direction comprises the following steps:
calculating the number N5 of buses with the speed less than a preset first threshold value F1 in the motor vehicles passing in the first driving direction in unit time; and the number of the first and second groups,
judging whether the N5/N1 is larger than a preset third threshold value F3, if so, judging that the motor vehicle in the first driving direction is congested, and if not, judging that the motor vehicle in the first driving direction is unblocked;
the method for judging whether the non-motor vehicle in the first driving direction is unblocked or jammed according to the number N2 of the non-motor vehicles passing through and the number N3 of the pedestrians in the first driving direction in unit time specifically comprises the following steps:
judging whether (N2+ N3) is larger than a preset fifth threshold value F5, if so, judging that the non-motor vehicle in the first driving direction is congested, and if not, judging that the non-motor vehicle in the first driving direction is unblocked;
the step of judging whether the motor vehicle in the second driving direction is unblocked or jammed according to the number N4, the type and the driving speed of the motor vehicle passing through in the unit time of the second driving direction is specifically as follows:
calculating the number N6 of buses with the speed less than a preset second threshold value F2 in the motor vehicles passing in the second driving direction in unit time; and the number of the first and second groups,
and judging whether the N6/N4 is larger than a preset fourth threshold value F4, if so, judging that the motor vehicle in the second driving direction is congested, and if not, judging that the motor vehicle in the second driving direction is unblocked.
4. The method according to claim 2, wherein the obtaining of the setting scheme of the right turn signal lamp of the motor vehicle at the current intersection according to the judgment result of the traffic jam condition at the current intersection and the traffic light state of the preset direction at the current intersection specifically comprises:
if the motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp in the first driving direction are all red lamps, setting a motor vehicle right turn signal lamp at the current intersection as a green lamp; and the number of the first and second groups,
and if one of the motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp in the first driving direction is a green lamp, setting a motor vehicle right turn signal lamp to be a yellow lamp flashing or a red lamp according to a judgment result of the current intersection traffic jam condition.
5. The method according to claim 4, wherein if one of the first driving direction motor vehicle signal lamp, the non-motor vehicle signal lamp and the pedestrian signal lamp is green, the motor vehicle right turn signal lamp is set to be flashing yellow or red according to the judgment result of the current intersection traffic jam condition, specifically:
if the motor vehicle and the non-motor vehicle in the first driving direction are both smooth and the motor vehicle in the second driving direction is also smooth, setting a motor vehicle right turn signal lamp to flash like yellow; and the number of the first and second groups,
if one of the motor vehicle and the non-motor vehicle in the first driving direction is congested or the motor vehicle in the second driving direction is congested, shortening the flashing time of a yellow light of a right turn signal lamp of the motor vehicle, or setting the right turn signal lamp of the motor vehicle as a red light.
6. The method of claim 5, wherein the shortened yellow flashing time period T1 of the rear turn signal lamp of the vehicle is calculated by the following formula:
T1＝(1-N5/N1)*(1-N6/N4)*((N2+N3)/F5)*T0
in the formula, N1 is the number of passing motor vehicles in the first driving direction in unit time, N2 is the number of passing non-motor vehicles in the first driving direction in unit time, N3 is the number of passing pedestrians in the first driving direction in unit time, N4 is the number of passing motor vehicles in the second driving direction in unit time, N5 is the number of buses with the speed of passing motor vehicles in the first driving direction in unit time being smaller than a preset first threshold F1, N6 is the number of buses with the speed of passing motor vehicles in the second driving direction in unit time being smaller than a preset second threshold F2, F5 is a preset fifth threshold, and T0 is the yellow light flashing time length for shortening the right turn signal light of the front motor vehicle.
7. The method of claim 3 or 6, further comprising:
acquiring a highest speed limit V1 of the running speed of the motor vehicle in the first running direction;
acquiring a highest speed limit V2 of the running speed of the motor vehicle in the second running direction;
acquiring the current time, and judging whether the current time is in a preset peak time period or a normal time period;
if the current time is in the preset peak time, the first threshold F1 is V1/3; the second threshold F2 ═ V2/3; third threshold F3 ═ 1/3; the fourth threshold F4 ═ 1/3; a fifth threshold F5 ═ N1 × 10;
if the current time is in the preset peacetime period, the first threshold F1 is V1/2; the second threshold F2 ═ V2/2; third threshold F3 ═ 1/2; the fourth threshold F4 ═ 1/2; the fifth threshold F5 — N1 × 5.
8. Method according to claim 5, characterized in that the motor vehicle right turn signal lamp is set to a red light, in particular:
if the yellow light flashing time length of the motor vehicle right turn signal lamp is shortened to be zero, the motor vehicle right turn signal lamp is directly set to be a red light.
9. A motor vehicle signal light control device, comprising:
the receiving module is arranged for receiving the number, types and running speeds of motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians, which are sent by the intersection monitoring device, and receiving the traffic light state of the preset direction of the current intersection, which is sent by the traffic light control system;
the congestion confirmation module is set to judge the traffic congestion condition of the current intersection according to the number, types and running speeds of the motor vehicles in the preset direction of the current intersection, the number of non-motor vehicles and the number of pedestrians received by the receiving module;
the signal lamp setting module is set to obtain a motor vehicle right-turn signal lamp setting scheme of the current intersection according to the judgment result of the traffic jam condition of the current intersection obtained by the jam confirming module and the traffic light state of the current intersection in the preset direction received by the receiving module; and the number of the first and second groups,
and the sending module is used for sending the motor vehicle right turn signal lamp setting scheme of the current intersection obtained by the signal lamp setting module to the traffic light control system.
10. A motor vehicle signal lamp control device comprising a processor and a memory, wherein the memory stores computer instructions, and when the processor executes the computer instructions stored in the memory, the processor executes the motor vehicle signal lamp control method according to any one of claims 1 to 8.
11. A computer readable storage medium having one or more programs stored thereon which, when executed by one or more processors, perform the motor vehicle signal light control method according to any one of claims 1 to 8.
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