CN113888870A - Traffic signal lamp fault processing method and device - Google Patents
Traffic signal lamp fault processing method and device Download PDFInfo
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- CN113888870A CN113888870A CN202111204188.8A CN202111204188A CN113888870A CN 113888870 A CN113888870 A CN 113888870A CN 202111204188 A CN202111204188 A CN 202111204188A CN 113888870 A CN113888870 A CN 113888870A
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- G—PHYSICS
- G08—SIGNALLING
- 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
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
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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
- G08G1/0129—Traffic data processing for creating historical data or processing based on historical data
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
Abstract
The embodiment of the invention provides a traffic signal lamp fault processing method and a traffic signal lamp fault processing device, wherein the method comprises the following steps: receiving first target display information of a target traffic signal lamp sent by a target DRSU at a first moment; determining whether the target traffic signal lamp has a fault or not according to the first target display information and the traffic signal lamp display model; and when the target traffic signal lamp is determined to have a fault, sending second target display information to the target vehicle, wherein the second target display information is the normal display information of the target traffic signal lamp stored in the traffic signal lamp display model at the first moment, and the target vehicle is a vehicle on a target lane corresponding to the target traffic signal lamp. When the traffic signal lamp is determined to have a fault, the normal display information of the traffic signal lamp stored in the traffic signal lamp display model is sent to the vehicle, so that the vehicle is guided to pass in order, and traffic jam at the intersection is prevented.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to a traffic signal lamp fault processing method and device.
Background
The traffic signal lamp is used as the most main equipment for modern traffic command automation and plays a crucial role in the traffic conditions of the road junctions, and once the traffic signal lamp of a certain intersection breaks down, if the traffic signal lamp cannot be displayed normally, road accidents may occur in the conventional time period, and traffic jam may occur in the congested time period.
Therefore, in order to ensure the orderly passing of vehicles, it is necessary to provide a fault handling method for traffic signal lamps during the fault of the traffic signal lamps.
Disclosure of Invention
The embodiment of the invention provides a traffic signal lamp fault processing method and device, aiming at solving the problem of guiding vehicles to pass through an intersection orderly when a traffic signal lamp fails.
In a first aspect, an embodiment of the present invention provides a traffic light fault handling method, which is applied to an intelligent traffic management platform, where the intelligent traffic management platform corresponds to a plurality of road side units DRSUs within a target range, and a traffic light display model for storing normal display information of each traffic light within the target range at each time of a target time interval is set in the intelligent traffic management platform, and the method includes:
receiving first target display information of a target traffic signal lamp sent by a target DRSU at a first moment, wherein the target DRSU is any one of the plurality of DRSUs, the target traffic signal lamp is any one of traffic signal lamps corresponding to the target DRSU, and the first moment is a certain moment in the target time interval;
determining whether the target traffic signal lamp has a fault according to the comparison result of the first target display information and the traffic signal lamp display model;
and when the target traffic signal lamp is determined to have a fault, sending second target display information to a target vehicle, wherein the second target display information is normal display information, corresponding to the target traffic signal lamp at the first moment, stored in the traffic signal lamp display model and is used for guiding the target vehicle to pass through a target intersection where the target traffic signal lamp is located, and the target vehicle is a vehicle on a target lane corresponding to the target traffic signal lamp.
In a second aspect, an embodiment of the present invention further provides a traffic signal lamp fault processing apparatus, including:
the system comprises a receiving module, a display module and a display module, wherein the receiving module is used for receiving first target display information of a target traffic signal lamp sent by a target DRSU at a first moment, the target DRSU is any one of the plurality of DRSUs, the target traffic signal lamp is any one traffic signal lamp corresponding to the target DRSU, and the first moment is a certain moment in a target time interval;
the determining module is used for determining whether the target traffic signal lamp has a fault according to the comparison result of the first target display information and the traffic signal lamp display model;
and the sending module is used for sending second target display information to a target vehicle when the target traffic signal lamp is determined to have a fault, wherein the second target display information is normal display information, corresponding to the target traffic signal lamp at the first moment, stored in the traffic signal lamp display model and is used for guiding the target vehicle to pass through a target intersection where the target traffic signal lamp is located, and the target vehicle is a vehicle on a target lane corresponding to the target traffic signal lamp.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the traffic signal lamp fault processing method are implemented.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the traffic signal lamp fault processing method are implemented.
Compared with the prior art, the invention has the following advantages:
according to the technical scheme of the embodiment of the invention, the intelligent traffic management platform acquires the display information of the traffic signal lamp through the DRSU, compares the display information with the display information stored in the traffic signal lamp display model, determines whether the traffic signal lamp fails, and sends the normal display information of the traffic signal lamp stored in the traffic signal lamp display model to the vehicle if the traffic signal lamp fails, so that the vehicle is guided to pass in order, the accident rate is reduced, the road passing efficiency is improved, and the traffic jam at the intersection is prevented.
Drawings
Fig. 1 is a schematic flow chart of a traffic signal lamp fault processing method according to an embodiment of the present invention;
FIG. 2 is a schematic intersection illustration of an embodiment of the present invention;
fig. 3 is a second schematic flow chart of a traffic signal lamp fault processing method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a traffic signal lamp fault processing apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, 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.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The embodiment of the invention provides a traffic signal lamp fault processing method which is applied to an intelligent traffic management platform (DRC), wherein the intelligent traffic management platform corresponds to a plurality of intelligent traffic roadside units (DRSU) in a target range, and a traffic signal lamp display model for storing normal display information of each traffic signal lamp in the target range at each moment of a target time interval is arranged in the intelligent traffic management platform.
It should be noted that the target range corresponding to the intelligent traffic management platform DRC may include a plurality of intersections, wherein a plurality of DRSUs are set on a road within the target range at preset distances, and the corresponding monitoring areas are continuously monitored, respectively, optionally, the preset distance may be 100 to 150 meters, so that, due to the setting of the DRSUs at each intersection, display information of a traffic signal lamp may be collected by the DRSUs set at the intersection, and then, the DRC may screen display information of all traffic signal lamps at the current intersection from the information collected by the DRSUs. The DRC can determine whether the current traffic signal lamp has a fault according to the acquired display information of the traffic signal lamp and the display information of the traffic signal lamp stored in the traffic signal lamp display model, so that the purpose of monitoring the faults of all the traffic signal lamps in the target range is realized.
Wherein, the DRSU can be integrated with sensors such as laser radar, millimeter wave radar and camera. In the embodiment of the invention, the DRSU at the intersection position can acquire the display information of the traffic signal lamp of the current intersection through the camera, and optionally, the DRSU is installed at a fixed position on the road side to continuously monitor the traffic signal lamp in the monitoring area of the corresponding camera. And the DRSU sends the display information of the traffic signal lamp acquired by the camera to the intelligent traffic management platform DRC, so that the intelligent traffic management platform DRC can monitor the state of the traffic signal lamp of the intersection in the managed target range.
And a traffic light display model used for storing the normal display information of each traffic light in the target range at each moment of the target time interval is arranged in the intelligent traffic management platform DRC. Specifically, the target time interval may be a monitoring time interval of the intelligent traffic management platform DRC on traffic lights within a target range. Considering the case that the display information of each traffic light in the traffic light display model is periodically repeated, that is, the display laws of a certain traffic light in a plurality of periods of the target period are the same, for a plurality of periods with the same display laws, the display information of only one period can be stored in the traffic light display model, and the display information of other periods with the same display laws as the period can not be stored. Specifically, the duration of the time period may be determined according to the display condition of the actual traffic signal lamp, and the present invention is not particularly limited.
Whether the traffic signal lamp in the target range corresponding to the intelligent traffic management platform DRC has a fault or not can be determined through the traffic signal lamp display model and the actual display Information of the traffic signal lamp sent by the DRSU, specifically, the intelligent traffic management platform DRC and each Vehicle in the target range can communicate through a 5G Vehicle-road cooperative private network (5G VICS), and once the traffic signal lamp is detected to have a fault, the normal display Information of the traffic signal lamp is sent to each Vehicle on the lane corresponding to the traffic signal lamp through the 5G VICS so as to guide the Vehicle to pass through the current intersection.
As shown in fig. 1, the traffic signal lamp fault processing method may include:
It should be noted that, according to the specific road condition and the specific design condition, the target traffic signal lamp in the embodiment of the present invention may include a straight-going signal lamp, a left-turning signal lamp, and a right-turning signal lamp, may also include only the straight-going signal lamp and the left-turning signal lamp, does not include the right-turning signal lamp, may also include only the straight-going signal lamp, does not include the left-turning signal lamp and the right-turning signal lamp, and may also be in other situations, which are not listed one by one here. Correspondingly, the first target display information of the target traffic signal lamp is the display information of each signal lamp included in the target traffic signal lamp.
When the intelligent traffic management platform receives first target display information of a target traffic signal lamp sent by a target DRSU at a first moment, the target DRSU is any one of the plurality of DRSUs corresponding to the intelligent traffic management platform, the target traffic signal lamp is any one of the traffic signal lamps corresponding to the target DRSU, and the first moment is a certain moment in a target time interval, so that monitoring of any traffic signal lamp in a target range at the target time interval is realized, and comprehensive coverage of the traffic signal lamp in the target range is realized.
Specifically, the first target display information received by the intelligent traffic management platform of the embodiment of the invention is the display information of the target traffic signal lamp at the first moment, wherein, the first target display information can carry a time parameter, the time parameter is the first moment, therefore, when the subsequent judgment of whether the target traffic signal lamp has a fault or not is carried out, the display information of the target traffic light at the first moment in the traffic light display model can be determined through the time parameter carried by the first target display information, and then comparing the first target display information with the display information of the target traffic light in the traffic light display model at the first moment without considering the time delay problem when receiving the first target display information, thereby improving the processing efficiency of the platform.
And 102, determining whether the target traffic signal lamp has a fault or not according to the comparison result of the first target display information and the traffic signal lamp display model.
It should be noted that the traffic signal lamp display model stores normal display information of each traffic signal lamp in the target range at each time of the target time interval, the first target display information is actual display information of the target traffic signal lamp at the first time, which is acquired by the target DRSU through a camera, and according to the first display information and the traffic signal lamp display model, whether the target traffic signal lamp fails or not can be determined, specifically, the failure of the target traffic signal lamp includes: at least one signal lamp in the target traffic signal lamps has a fault, wherein the fault of the signal lamp can be continuous flicker, unlighted signal lamp and the like of the signal lamp.
When the target vehicle on the target lane corresponding to the target traffic light passes through the target intersection where the target traffic light is located, the driver of the target vehicle needs to pass through the target intersection in a straight-going, left-turning or right-turning manner according to the guidance of the target traffic light, and when the target traffic light fails, the target vehicle may have a potential safety hazard or cause a traffic jam at the target intersection due to the absence of the guidance of the target traffic light. When a target traffic signal lamp fails, the second target display information, which is the correct display information of the target traffic signal lamp stored in the traffic signal lamp display model, is sent to the target vehicle, and the target vehicle is guided to pass through the target intersection.
The intelligent traffic management platform DRC provided by the embodiment of the invention is provided with a plurality of DRSUs on roads in a target range, and the DRSUs respectively and continuously monitor corresponding monitoring areas, so that at each intersection, due to the arrangement of the DRSUs, the DRC can acquire display information of all traffic lights of the current intersection from information acquired by the DRSUs. Specifically, DRC obtains the display information of the traffic signal lamp through DRSU, compares the display information with the display information stored in the traffic signal lamp display model, determines whether the traffic signal lamp has a fault, and sends the normal display information of the traffic signal lamp stored in the traffic signal lamp display model to the vehicle if the traffic signal lamp has the fault, thereby guiding the vehicle to pass in order, reducing the accident rate, improving the road passing efficiency and preventing the intersection from traffic jam.
In an optional embodiment of the present invention, the determining whether the target traffic signal lamp has a fault according to a comparison result between the first target display information and the traffic signal lamp display model includes:
comparing whether the first target display information is consistent with the second target display information in the traffic signal lamp display model;
determining that the target traffic signal lamp fails when the first target display information is inconsistent with the second target display information;
and determining that the target traffic signal lamp is normally displayed under the condition that the first target display information is consistent with the second target display information.
In the above embodiment of the present invention, when determining whether the target traffic signal lamp has a fault according to the first target display information and the traffic signal lamp display model, the first target display information may be compared with the normal display information of the target traffic signal lamp in the traffic signal lamp display model to determine whether the target traffic signal lamp has a fault, before performing the comparison, the method further includes obtaining a time parameter carried in the first target display information, where the time parameter is a first time, obtaining the normal display information of the target traffic signal lamp at the first time in the traffic signal lamp display model, that is, the second target display information, according to the time parameter, and then comparing the first target display information with the second target display information, that is, comparing the actual display information of the target traffic signal lamp collected by the target DRSU with the target traffic communication information stored in the traffic signal lamp display model And comparing the normal display information of the signal lamps, if the normal display information of the signal lamps is consistent, determining that the target traffic signal lamp is normally displayed, and if the normal display information of the signal lamps is inconsistent, determining that the target traffic signal lamp breaks down. According to the scheme, whether the target traffic signal lamp breaks down or not can be determined more quickly through a comparison mode.
In an optional embodiment of the present invention, as shown in fig. 2, the target lane includes a first area and a second area, the first area is an area that is less than a first preset distance away from the target intersection, the second area is an area that is greater than the first preset distance away from the target intersection and less than a second preset distance away from the target intersection, the first preset distance is less than the second preset distance, the target vehicle in the first area is a first target vehicle, and the target vehicle in the second area is a second target vehicle; the straight-line distance between the first target vehicle and the target intersection is smaller than the first preset distance, and the straight-line distance between the second target vehicle and the target intersection is larger than the first preset distance and smaller than the second preset distance. Preferably, the first predetermined distance is 50 meters and the second predetermined distance is 100 meters.
When the target traffic signal lamp is determined to have a fault, sending second target display information to a target vehicle, wherein the method comprises one of the following schemes:
when the target traffic signal lamp is determined to have a fault, sending prompt information to the second target vehicle, and sending second target display information to the first target vehicle, wherein the prompt information is used for prompting that the traffic signal lamp in the driving direction of the target vehicle has a fault;
when the target traffic signal lamp is determined to have a fault, sending the prompt information and the second target display information to the target vehicle;
and when the target traffic signal lamp is determined to have a fault, sending the prompt message to the second target vehicle, and sending the prompt message and the second target display message to the target vehicle.
In the above embodiment of the present invention, when it is determined that the target traffic signal lamp has a fault, the embodiment of the present invention divides the target lane corresponding to the target traffic signal lamp into two regions, a first region and a second region. The first area is an area close to the target intersection, and the second area is an area far away from the target intersection.
When the target traffic signal lamp is determined to have a fault, sending second target display information to a target vehicle, wherein the following scheme can be adopted: the first scheme is that for a second target vehicle in a second area, because a certain distance exists between the second target vehicle and an intersection, only prompt information can be sent to the second target vehicle at the moment, and for a first target vehicle in a first area, the first target vehicle is close to the target intersection, only second target display information can be sent to the first target vehicle at the moment, and the first target vehicle is guided to pass through the current intersection; a second scheme, sending the prompt message and the second target display message to the target vehicle, that is, sending the prompt message and the second target display message to the vehicles in the first area and the second area instead of sending the prompt message and the second target display message to the target vehicle; and in the third scheme, only the prompt information is sent to the second target vehicle in the second area, and the prompt information and the second target display information are simultaneously sent to the first target vehicle in the first area.
It should be noted that the prompt information is used to prompt that the traffic light in the driving direction of the target vehicle has a fault, and after receiving the prompt information, the vehicle may prompt the driver in a voice manner and/or prompt the driver in a pop-up window manner on a central control display screen in the vehicle. The second target display information is used for guiding the target vehicle to pass through a target intersection where the target traffic signal lamp is located, specifically, after the vehicle receives the second target display information, the vehicle may display the display information of the traffic signal lamp in front on a central control display screen and/or a head-up display screen of the vehicle, and/or report the display information of the current traffic signal lamp in a voice broadcast manner, and optionally, the second target display information includes the current color of each signal lamp of the target traffic signal lamp, and may also include the remaining time for switching the current color to the next color. Preferably, when the vehicle displays the second target display information, the information of the signal lamp corresponding to the lane where the vehicle is located may be displayed in an emphasized manner according to the lane where the vehicle is located, for example, when the vehicle is located in a straight lane, the straight signal lamp in the target traffic signal lamp is displayed in an emphasized manner, and when the vehicle is located in a left-turn lane, the left-turn signal lamp in the target traffic signal lamp is displayed in an emphasized manner, specifically, the emphasized display manner may be an enlarged display, a color emphasized display, and the like, and is not limited herein.
It should be further noted that, after determining that the target traffic signal lamp fails, the method further includes: acquiring the license plate number of each target vehicle on a target lane corresponding to the target traffic signal lamp, and specifically, acquiring through a camera on the DRSU; and the intelligent traffic management platform identifies the target vehicle according to the license plate number and sends prompt information and/or second target display information to the vehicle corresponding to the license plate number.
In an optional embodiment of the present invention, the method further comprises:
and establishing the traffic signal lamp display model.
In the above embodiment of the present invention, in order to determine whether a traffic light is in failure and to determine how to guide a vehicle through an intersection when the traffic light is in failure, a traffic light display model is set on the intelligent traffic management platform, and the traffic light display model stores therein normal display information of each of the traffic lights in a target range at each time of a target time interval. The traffic signal lamp display model can judge whether the traffic signal lamp has a fault or not and determine how to guide the vehicle to pass through the intersection when the traffic signal lamp has the fault. Therefore, the traffic signal lamp display model needs to be established on the intelligent traffic management platform.
In an optional embodiment of the present invention, the establishing the traffic signal lamp display model includes:
acquiring color transformation information of each traffic signal lamp in the target range, which is transformed along with time; and establishing the traffic signal lamp display model according to the color transformation information.
According to the embodiment of the invention, when the traffic signal lamp display model is established, the traffic signal lamp display model can be established by acquiring the color transformation information of each traffic signal lamp in the target range, which is transformed along with time, and the traffic signal lamp display model stores the normal display information of each traffic signal lamp in the target range at each moment of the target time interval. The color conversion information of each traffic signal lamp in the target range, which is obtained by the intelligent traffic management platform and is converted along with time, is normal display information of the traffic signal lamp in the target range, and the specific obtaining way can be obtained from a traffic signal lamp control system, wherein the signal lamp control system stores display rules of each traffic signal lamp, and the normal display information of the traffic signal lamp in the target range in the target time period can be obtained according to the display rules.
Specifically, when the traffic signal lamp display model is established, a map of the target range is also required to be acquired, and the number of intersections, traffic signal lamp data and the type of each intersection in the target range are determined according to the map, so that when the traffic signal lamp display model is established, the traffic signal lamps are prevented from being omitted, and the traffic signal lamp display model is ensured to cover the display information of all the traffic signal lamps in the target range.
In an optional embodiment of the present invention, the method further comprises:
and correcting the traffic signal lamp display model.
According to the embodiment of the invention, the display information of each traffic signal lamp in the traffic signal lamp display model can be updated in real time by timely correcting the traffic signal lamp display model, so that misjudgment is ensured when whether the traffic signal lamp has a fault or not is judged, and the display information of the traffic signal lamp sent to a vehicle is ensured to be correct. Optionally, when the traffic light display model is corrected, the update may be performed in a manner that the DRSU collects traffic light display information or in a manner that the changed traffic light display information is directly imported.
In an optional embodiment of the present invention, the modifying the traffic light display model includes:
aiming at each intersection, receiving display information of each traffic signal lamp of the current intersection at each moment of the target time interval;
judging whether a first traffic signal lamp and a second traffic signal lamp are normally displayed at the current moment or not aiming at each moment of the target time interval, wherein the first traffic signal lamp and the second traffic signal lamp are both traffic signal lamps of the current intersection, and the driving direction of the vehicle on the lane corresponding to the first traffic signal lamp is opposite to the driving direction of the vehicle on the lane corresponding to the second traffic signal lamp;
under the condition that the first traffic signal lamp and the second traffic signal lamp are normally displayed at the current moment, if the display information of the first traffic signal lamp at the current moment is inconsistent with the first display information in the traffic signal lamp display model, correcting the first display information and the second display information according to the display information of the first traffic signal lamp;
the first display information is the display information of the first traffic light at the current moment in the traffic light display model, and the second display information is the display information of the second traffic light at the current moment in the traffic light display model.
In the above embodiment of the present invention, for each intersection, if the two traffic lights at the current intersection in opposite directions are displayed normally but are not consistent with the display information of the corresponding traffic light in the traffic light display model, it is determined that the two traffic lights at the current intersection have no fault, and at this time, the display information of the two traffic lights in the traffic light display model needs to be updated. The correction mode can quickly determine the traffic signal lamp needing to be corrected, and is simple. Particularly, the traffic signal lamp display model can be corrected to be closer to the actual situation in time.
It should be noted that, for each intersection, since the driving direction of the vehicle on the lane corresponding to the first traffic signal lamp is opposite to the driving direction of the vehicle on the lane corresponding to the second traffic signal lamp, the display information of the first traffic signal lamp is the same as the display information of the second traffic signal lamp, and therefore, when it is determined whether the display information of the first traffic signal lamp and the display information of the second traffic signal lamp are displayed normally at the current time, it may be determined whether the display information of the first traffic signal lamp and the display information of the second traffic signal lamp are the same and whether the display information of the first traffic signal lamp and the display information of the second traffic signal lamp are matched.
Specifically, when the current intersection is an intersection, the intersection includes four traffic signal lamps, which are a first traffic signal lamp, a second traffic signal lamp, a third traffic signal lamp and a fourth traffic signal lamp, respectively, and each traffic signal lamp may include a straight-going signal lamp and a left-turn signal lamp. The driving direction of the vehicle on the lane corresponding to the first traffic signal lamp is opposite to the driving direction of the vehicle on the lane corresponding to the second traffic signal lamp, the driving direction of the vehicle on the lane corresponding to the third traffic signal lamp is opposite to the driving direction of the vehicle on the lane corresponding to the fourth traffic signal lamp, specifically, the first traffic signal lamp is used for guiding the vehicle to turn straight north and turn left south and west, the second traffic signal lamp is used for guiding the vehicle to turn straight south and turn left north, the third traffic signal lamp is used for guiding the vehicle to turn straight east and turn left north, and the fourth traffic signal lamp is used for guiding the vehicle to turn straight east and west and turn left south. At this time, the above-mentioned case of matching with the display information of other traffic lights at the current intersection may be the following case: when the straight traffic signal lamp or the left turn signal lamp of the first traffic signal lamp and the second traffic signal lamp is a green lamp or a yellow lamp, the straight traffic signal lamp and the left turn signal lamp of the third traffic signal lamp and the fourth traffic signal lamp are red lamps; when the straight-going signal lamps and the left-turn signal lamps of the first traffic signal lamp and the second traffic signal lamp are red lamps, the straight-going signal lamps and the left-turn signal lamps of the third traffic signal lamp and the fourth traffic signal lamp are green lamps or yellow lamps. The above is only an example when the current intersection is an intersection, and whether the display information of the specific traffic signal lamp matches the display information of other traffic signal lamps at the current intersection needs to be determined according to the specific intersection type and the setting condition of the traffic signal lamp, which is not specifically limited herein.
If the display information of the first traffic signal lamp and the second traffic signal lamp at the current moment is consistent and is matched with the display information of other traffic signal lamps at the current intersection, the two traffic signal lamps at the current intersection are displayed normally, and the traffic signal lamp display model can be corrected through the two traffic signal lamps. And for the condition that the conditions are not met, namely the display information of the first traffic signal lamp and the second traffic signal lamp at the current moment is not consistent and/or is not matched with the display information of other traffic signal lamps at the current intersection, the two traffic signal lamps at the current intersection are displayed abnormally, the traffic signal lamps are determined to be in failure, at the moment, the display information of the corresponding traffic signal lamps in the traffic signal lamp display model needs to be sent to the vehicles on the lanes corresponding to the traffic signal lamps, and the vehicles are guided to pass through the current intersection.
The following describes an overall implementation flow of the embodiment of the present invention, as shown in fig. 3, including:
and 301, acquiring display information of the traffic signal lamps of each intersection. Specifically, the display information of each traffic light may be acquired from the traffic light control system.
It should be noted that, when the intersection traffic light display model is established, the intersection may be established as a unit, for example, a modeling process for the intersection is as follows, first, according to the type of the current intersection, the guidance of each signal light of the traffic signal light of the current intersection is determined, and then the signal light of the current intersection may include: an east-to-south signal light, an east-to-west signal light, an east-to-north signal light, a south-to-west signal light, a south-to-north signal light, a south-to-east signal light, a west-to-north signal light, a west-to-south signal light, a north-to-east signal light, a north-to-south signal light, and a north-to-west signal light. The signal lamps can be divided into four types of signal lamps which can be simultaneously carried out as follows: the signal lamp comprises an east signal lamp, a west signal lamp, a south signal lamp, a north signal lamp, a south signal lamp, a west signal lamp and a north signal lamp. For right turn situations (south to east signal light, east to north signal light, north to west signal light and west to south signal light) the signal lights may not be provided and are not considered separately here. Then, for the above four signal lights that can be performed simultaneously, the conversion sequence and the conversion time of each situation need to be determined according to the received display information of each signal light, specifically, in the first situation (east to west signal light, west to east signal light), the green light time length T11, the yellow light time length T12, and the red light time length T13 are determined; in the second case (south-east turn signal light, north-west turn signal light), the green light time length T21, the yellow light time length T22, and the red light time length T23 are determined; in the third case (south-north signal lamp, north-south signal lamp), determining green light time length T31, yellow light time length T32 and red light time length T33; in the fourth case (south to west signal light, north to east signal light), the green light time period T41, the yellow light time period T42, and the red light time period T43 are determined. The cyclic passing sequence of the above four cases: the first case, the second case, the third case and the fourth case are sequentially performed. And determining the display time of each color of each signal lamp in each traffic signal lamp, namely determining the traffic signal lamp display model.
And step 303, monitoring the traffic signal lamp in real time. And after the traffic signal lamp display model is determined, uploading the display information of the traffic signal lamp acquired in real time to an intelligent traffic management platform through the DRSU.
And step 304, judging whether the monitored traffic light display information is consistent with the display information in the traffic light display model, if so, returning to the step 303 to continue monitoring the traffic light, and otherwise, executing the step 305. And comparing the actual display information of the traffic signal lamp acquired by the DRSU with the display information in the traffic signal lamp display model, so as to determine whether the current traffic signal lamp fails, wherein if the actual display information of the traffic signal lamp is consistent with the display information in the traffic signal lamp display model, the current traffic signal lamp fails, and if the actual display information of the traffic signal lamp is inconsistent with the display information in the traffic signal lamp display model, the current traffic signal lamp fails.
The intelligent traffic management platform acquires the display information of the traffic signal lamp through the DRSU, compares the display information with the display information stored in the traffic signal lamp display model to determine whether the traffic signal lamp has a fault, and sends the normal display information of the traffic signal lamp stored in the traffic signal lamp display model to the vehicle if the traffic signal lamp has the fault, so that the vehicle is guided to pass orderly, the accident rate is reduced, the road passing efficiency is improved, and traffic jam at an intersection is prevented.
An embodiment of the present invention further provides a traffic signal lamp fault processing apparatus, as shown in fig. 4, including:
a receiving module 401, configured to receive first target display information of a target traffic signal lamp sent by a target DRSU at a first time, where the target DRSU is any one of the plurality of DRSUs, the target traffic signal lamp is any one of traffic signal lamps corresponding to the target DRSU, and the first time is a certain time within the target time interval;
a determining module 402, configured to determine whether the target traffic signal lamp fails according to a comparison result between the first target display information and the traffic signal lamp display model;
a sending module 403, configured to send second target display information to a target vehicle when it is determined that the target traffic light has a fault, where the second target display information is normal display information, stored in the traffic light display model, corresponding to the target traffic light at the first time and is used to guide the target vehicle to pass through a target intersection where the target traffic light is located, and the target vehicle is a vehicle on a target lane corresponding to the target traffic light.
Optionally, the determining module 402 includes:
the comparison submodule is used for comparing whether the first target display information is consistent with the second target display information in the traffic signal lamp display model or not;
the first determining submodule is used for determining that the target traffic signal lamp has a fault under the condition that the first target display information is inconsistent with the second target display information;
and the second determining submodule is used for determining that the target traffic signal lamp is normally displayed under the condition that the first target display information is consistent with the second target display information.
Optionally, the target lane includes a first area and a second area, the distance between the first area and the target intersection is less than a first preset distance, the distance between the second area and the target intersection is greater than the first preset distance and less than a second preset distance, the first preset distance is less than the second preset distance, the target vehicle in the first area is a first target vehicle, and the target vehicle in the second area is a second target vehicle;
the sending module 403 includes one of the following sub-modules:
the first sending submodule is used for sending prompt information to the second target vehicle and sending second target display information to the first target vehicle when the target traffic signal lamp is determined to be in fault, wherein the prompt information is used for prompting that the traffic lamp in the driving direction of the target vehicle is in fault;
the second sending submodule is used for sending the prompt information and the second target display information to the target vehicle when the target traffic signal lamp is determined to be in fault;
and the third sending submodule is used for sending the prompt message to the second target vehicle and sending the prompt message and the second target display message to the target vehicle when the target traffic signal lamp is determined to be in fault.
Optionally, the apparatus further comprises:
and the model establishing module is used for establishing the traffic signal lamp display model.
Optionally, the model building module includes:
the acquisition submodule is used for acquiring color conversion information of each traffic signal lamp in the target range, wherein the color conversion information is converted along with time;
and the establishing submodule is used for establishing the traffic signal lamp display model according to the color transformation information.
Optionally, the apparatus further comprises:
and the model correction module is used for correcting the traffic signal lamp display model.
Optionally, the model modification module includes:
the receiving submodule is used for receiving display information of each traffic signal lamp of the current intersection at each moment of the target time interval aiming at each intersection;
the judging submodule is used for judging whether a first traffic signal lamp and a second traffic signal lamp are normally displayed at the current moment or not according to each moment of the target time interval, wherein the first traffic signal lamp and the second traffic signal lamp are both traffic signal lamps of the current intersection, and the driving direction of the vehicle on the lane corresponding to the first traffic signal lamp is opposite to the driving direction of the vehicle on the lane corresponding to the second traffic signal lamp;
the correction submodule is used for correcting the first display information and the second display information according to the display information of the first traffic signal lamp if the display information of the first traffic signal lamp at the current moment is inconsistent with the first display information in the traffic signal lamp display model under the condition that the first traffic signal lamp and the second traffic signal lamp are normally displayed at the current moment;
the first display information is the display information of the first traffic light at the current moment in the traffic light display model, and the second display information is the display information of the second traffic light at the current moment in the traffic light display model.
According to the traffic signal lamp fault processing device provided by the invention, the intelligent traffic management platform acquires the display information of the traffic signal lamp through the DRSU, compares the display information with the display information stored in the traffic signal lamp display model, determines whether the traffic signal lamp has a fault, and sends the normal display information of the traffic signal lamp stored in the traffic signal lamp display model to the vehicle if the traffic signal lamp has the fault, so that the vehicle is guided to pass orderly, the accident rate is reduced, the road passing efficiency is improved, and the traffic jam at the intersection is prevented.
The embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when being executed by the processor, the computer program implements each process of the traffic signal lamp fault handling method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
Fig. 5 shows a physical structure diagram of an electronic device, for example, as follows.
As shown in fig. 5, the electronic device may include: a processor (processor)510, a communication Interface (Communications Interface)520, a memory (memory)530 and a communication bus 540, wherein the processor 510, the communication Interface 520 and the memory 530 communicate with each other via the communication bus 540. Processor 510 may call logic instructions in memory 530, processor 510 to perform the following steps: receiving first target display information of a target traffic signal lamp sent by a target DRSU at a first moment, wherein the target DRSU is any one of the plurality of DRSUs, the target traffic signal lamp is any one of traffic signal lamps corresponding to the target DRSU, and the first moment is a certain moment in the target time interval; determining whether the target traffic signal lamp has a fault according to the first target display information and the traffic signal lamp display model; and when the target traffic signal lamp is determined to have a fault, sending second target display information to a target vehicle, wherein the second target display information is normal display information, corresponding to the target traffic signal lamp at the first moment, stored in the traffic signal lamp display model and is used for guiding the target vehicle to pass through a target intersection where the target traffic signal lamp is located, and the target vehicle is a vehicle on a target lane corresponding to the target traffic signal lamp.
Furthermore, the logic instructions in the memory 530 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the traffic signal lamp fault processing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A traffic signal lamp fault processing method is applied to an intelligent traffic management platform, and is characterized in that the intelligent traffic management platform corresponds to a plurality of road side units (DRSU) in a target range, and a traffic signal lamp display model used for storing normal display information of each traffic signal lamp in the target range at each moment of a target time interval is arranged in the intelligent traffic management platform, and the method comprises the following steps:
receiving first target display information of a target traffic signal lamp sent by a target DRSU at a first moment, wherein the target DRSU is any one of the plurality of DRSUs, the target traffic signal lamp is any one of traffic signal lamps corresponding to the target DRSU, and the first moment is a certain moment in the target time interval;
determining whether the target traffic signal lamp has a fault according to the comparison result of the first target display information and the traffic signal lamp display model;
and when the target traffic signal lamp is determined to have a fault, sending second target display information to a target vehicle, wherein the second target display information is normal display information, corresponding to the target traffic signal lamp at the first moment, stored in the traffic signal lamp display model and is used for guiding the target vehicle to pass through a target intersection where the target traffic signal lamp is located, and the target vehicle is a vehicle on a target lane corresponding to the target traffic signal lamp.
2. The traffic signal lamp fault handling method according to claim 1, wherein the determining whether the target traffic signal lamp is faulty according to the comparison result between the first target display information and the traffic signal lamp display model includes:
comparing whether the first target display information is consistent with the second target display information in the traffic signal lamp display model;
determining that the target traffic signal lamp fails when the first target display information is inconsistent with the second target display information;
and determining that the target traffic signal lamp is normally displayed under the condition that the first target display information is consistent with the second target display information.
3. The traffic signal lamp fault handling method according to claim 1, wherein the target lane includes a first area and a second area, the first area is an area that is less than a first preset distance from the target intersection, the second area is an area that is greater than the first preset distance and less than a second preset distance from the target intersection, the first preset distance is less than the second preset distance, the target vehicle in the first area is a first target vehicle, and the target vehicle in the second area is a second target vehicle;
when the target traffic signal lamp is determined to have a fault, sending second target display information to a target vehicle, wherein the method comprises one of the following schemes:
when the target traffic signal lamp is determined to have a fault, sending prompt information to the second target vehicle, and sending second target display information to the first target vehicle, wherein the prompt information is used for prompting that the traffic signal lamp in the driving direction of the target vehicle has a fault;
when the target traffic signal lamp is determined to have a fault, sending the prompt information and the second target display information to the target vehicle;
and when the target traffic signal lamp is determined to have a fault, sending the prompt message to the second target vehicle, and sending the prompt message and the second target display message to the target vehicle.
4. The traffic signal lamp fault handling method according to claim 1, further comprising:
and establishing the traffic signal lamp display model.
5. The traffic signal lamp fault handling method of claim 4, wherein the establishing the traffic signal lamp display model comprises:
acquiring color transformation information of each traffic signal lamp in the target range, which is transformed along with time;
and establishing the traffic signal lamp display model according to the color transformation information.
6. The traffic signal lamp fault handling method according to claim 1, further comprising:
and correcting the traffic signal lamp display model.
7. The method for processing the fault of the traffic signal lamp according to claim 6, wherein the correcting the traffic signal lamp display model comprises:
aiming at each intersection, receiving display information of each traffic signal lamp of the current intersection at each moment of the target time interval;
judging whether a first traffic signal lamp and a second traffic signal lamp are normally displayed at the current moment or not aiming at each moment of the target time interval, wherein the first traffic signal lamp and the second traffic signal lamp are both traffic signal lamps of the current intersection, and the driving direction of the vehicle on the lane corresponding to the first traffic signal lamp is opposite to the driving direction of the vehicle on the lane corresponding to the second traffic signal lamp;
under the condition that the first traffic signal lamp and the second traffic signal lamp are normally displayed at the current moment, if the display information of the first traffic signal lamp at the current moment is inconsistent with the first display information in the traffic signal lamp display model, correcting the first display information and the second display information according to the display information of the first traffic signal lamp;
the first display information is the display information of the first traffic light at the current moment in the traffic light display model, and the second display information is the display information of the second traffic light at the current moment in the traffic light display model.
8. A traffic signal lamp fault handling device, characterized by comprising:
the system comprises a receiving module, a display module and a display module, wherein the receiving module is used for receiving first target display information of a target traffic signal lamp sent by a target DRSU at a first moment, the target DRSU is any one of the plurality of DRSUs, the target traffic signal lamp is any one traffic signal lamp corresponding to the target DRSU, and the first moment is a certain moment in a target time interval;
the determining module is used for determining whether the target traffic signal lamp has a fault according to the comparison result of the first target display information and the traffic signal lamp display model;
and the sending module is used for sending second target display information to a target vehicle when the target traffic signal lamp is determined to have a fault, wherein the second target display information is normal display information, corresponding to the target traffic signal lamp at the first moment, stored in the traffic signal lamp display model and is used for guiding the target vehicle to pass through a target intersection where the target traffic signal lamp is located, and the target vehicle is a vehicle on a target lane corresponding to the target traffic signal lamp.
9. An electronic device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the traffic signal fault handling method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the traffic signal fault handling method according to any one of claims 1 to 7.
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