CN112687125B - Early warning method and device after illegal parking on road, storage medium and terminal - Google Patents
Early warning method and device after illegal parking on road, storage medium and terminal Download PDFInfo
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- CN112687125B CN112687125B CN202011424665.7A CN202011424665A CN112687125B CN 112687125 B CN112687125 B CN 112687125B CN 202011424665 A CN202011424665 A CN 202011424665A CN 112687125 B CN112687125 B CN 112687125B
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Abstract
The invention discloses a method, a device, a storage medium and a terminal for early warning after illegal parking on a road, wherein the method comprises the following steps: when the current vehicle continuously stops in violation on the highway, acquiring longitude and latitude coordinate points of the current vehicle; identifying the footfall of the parking spot and road network data according to the longitude and latitude coordinate points; acquiring a road foot list in a preset range behind a parking spot based on the parking spot foot and road network data, and acquiring a longitude and latitude coordinate chain corresponding to the foot list; generating a fence area according to coordinates in the coordinate chain, and creating a dynamic electronic fence with a direction based on the fence area with a preset length-width ratio; when a vehicle behind a parking spot enters the dynamic electronic fence with the direction, generating early warning information and sending the early warning information to early warning receiving equipment of the vehicle behind for early warning. Therefore, by adopting the embodiment of the application, the rear vehicle which is parked in an illegal way on the road can be automatically warned, so that the safe driving of the vehicle is effectively ensured, and the running efficiency of a road network is further improved.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to a method and a device for early warning after illegal parking on a road, a storage medium and a terminal.
Background
The highway transportation plays an important role in the economic and social development of China, maintains the stable and efficient operation of a highway traffic network, and has important significance for adjusting the industrial structure, promoting employment and economic development and accelerating the urban and rural integrated construction process. The illegal parking on the expressway has higher danger, and on the expressway, because the vehicle running speed is higher and the reaction time of people is short, the driver of the rear vehicle often has no time to take measures when finding the front static vehicle, so that traffic accidents are easily caused. Therefore, after vehicles break the expressway, timely early warning is the top priority for preventing traffic accidents.
In the prior art, the monitoring is mainly carried out through image acquisition equipment, when large trucks are found to stop on a highway in an illegal way, the vehicles are pre-warned after being connected through a remote terminal and the vehicles, and the illegal vehicles are prompted to drive away from stopping points as soon as possible. However, when a large truck cannot be driven away as soon as possible due to special reasons such as vehicle faults, and the like, since a rear vehicle cannot know the illegal parking information of the large truck in front, the front road is probably unknown and braking measures cannot be taken in time, so that an accident happens, the safe driving coefficient of the vehicle is reduced, the vehicle cannot continue to drive after the traffic accident, the traffic jam is caused, and the running efficiency of a road network is further reduced.
Disclosure of Invention
The embodiment of the application provides a method and a device for early warning after illegal parking on a road, a storage medium and a terminal. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
In a first aspect, an embodiment of the present application provides a method for warning after an illegal parking on a road, where the method includes:
when the current vehicle continuously stops in violation on the highway, acquiring longitude and latitude coordinate points of the current vehicle;
identifying the foothold of the parking spot and road network data according to the longitude and latitude coordinate points of the current vehicle;
acquiring a road foot list in a preset range behind a parking spot based on the parking spot foot and road network data, and acquiring a longitude and latitude coordinate chain corresponding to the road foot list in the preset range;
generating a fence area with a preset length-width ratio according to the longitude and latitude coordinates in the longitude and latitude coordinate chain, and creating a dynamic electronic fence with a direction based on the fence area with the preset length-width ratio;
when a vehicle behind a parking spot enters the dynamic electronic fence with the direction, generating early warning information and sending the early warning information to early warning receiving equipment of the vehicle behind for early warning.
Optionally, before the current vehicle is continuously stopped in violation on the road, the method further includes:
receiving and analyzing vehicle track data in a current acquisition cycle;
and preprocessing the analyzed vehicle track data, and identifying whether the vehicle is illegally parked on the road according to the preprocessed vehicle track data.
Optionally, the preprocessing is performed on the analyzed vehicle trajectory data, and includes:
judging whether the track point characteristic indexes of the analyzed vehicle track data are abnormal or not; wherein, the track point characteristic indexes at least comprise longitude and latitude abnormal points, speed abnormality and direction abnormality;
if not, judging whether the driving parameters of the analyzed vehicle track data are abnormal or not; the driving parameters at least comprise average speed, straight line distance, time interval and track point number with the previous track point;
and if not, sending the analyzed vehicle track data to a cache server for storage.
Optionally, identifying whether the vehicle is an illegal parking on the road according to the preprocessed vehicle trajectory data includes:
loading vehicle track data of a previous period of a current acquisition period from a cache server;
judging whether the vehicle position point in the current acquisition period is a parking starting point or not according to the preprocessed vehicle track data and the vehicle track data in the previous period;
if so, loading vehicle track data of a preset time period before the parking point is started from the cache server;
matching road network data corresponding to the vehicle position point in the current acquisition cycle according to the vehicle track data in the preset time period;
when the matched road network data is highway network data, loading a reasonable parking area POI coordinate point corresponding to the highway network data;
and when the vehicle position point in the current acquisition cycle is no longer in the POI coordinate point of the reasonable parking area, determining that the vehicle illegally parks on the road.
Optionally, the method further comprises:
receiving track data of the vehicle in real time after the vehicle is determined to be parked in a violation manner on the highway;
calculating displacement in a preset time period based on the trajectory data of the vehicle received in real time;
and when the displacement in the preset time period is smaller than the preset value, determining that the vehicle continuously stops illegally on the road.
Optionally, judging whether the vehicle position point in the current collection period is a stop start point according to the preprocessed vehicle track data and the vehicle track data in the previous period includes:
calculating the instantaneous speed of the vehicle according to the preprocessed vehicle track data;
when the instantaneous speed of the vehicle is smaller than a preset threshold value, acquiring the position coordinates of the vehicle in the previous period from the vehicle track data in the previous period;
acquiring the current position coordinates of the vehicle from the preprocessed vehicle track data;
calculating a distance based on the position coordinates of the vehicle in the previous period and the current position coordinates of the vehicle;
and when the distance is smaller than a preset threshold value, determining the vehicle position point in the current acquisition cycle as a starting stop point.
Optionally, the method further comprises:
receiving track data of a vehicle in real time;
calculating displacement in a preset time period based on the trajectory data of the vehicle received in real time;
when the displacement in the preset time period is larger than a preset value, determining that the vehicle is driven away;
and canceling the created dynamic electronic fence with the direction, and relieving the early warning.
In a second aspect, an embodiment of the present application provides an early warning device after illegal parking on a road, and the device includes:
the coordinate point acquisition module is used for acquiring longitude and latitude coordinate points of the current vehicle when the current vehicle continuously stops in violation on a highway;
the parameter identification module is used for identifying the footfall of the parking point and road network data according to the longitude and latitude coordinate points of the current vehicle;
the coordinate chain acquisition module is used for acquiring a road foot list in a preset range behind the parking point based on the parking point foot and the road network data and acquiring a longitude and latitude coordinate chain corresponding to the road foot list in the preset range;
the dynamic electronic fence creating module is used for generating a fence area with a preset length-width ratio according to the longitude and latitude coordinates in the longitude and latitude coordinate chain and creating a dynamic electronic fence with a direction based on the fence area with the preset length-width ratio;
and the early warning module is used for generating early warning information and sending the early warning information to early warning receiving equipment of the rear vehicle for early warning when the rear vehicle of the parking spot enters the dynamic electronic fence with the direction.
In a third aspect, embodiments of the present application provide a computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the above-mentioned method steps.
In a fourth aspect, an embodiment of the present application provides a terminal, which may include: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the above-mentioned method steps.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
in the embodiment of the application, the early warning device for illegal parking on a road firstly judges that the current vehicle continuously stops in an illegal manner on the road, acquires longitude and latitude coordinate points of the current vehicle, then identifies the parking point foot and road network data according to the longitude and latitude coordinate points, then acquires a road foot list in a preset range behind the parking point based on the parking point foot and road network data, acquires a longitude and latitude coordinate chain corresponding to the foot list, generates a fence area according to coordinates in the coordinate chain, creates a dynamic electronic fence with a direction based on the fence area with a preset length-width ratio, and finally generates early warning information and sends the early warning information to early warning receiving equipment of a rear vehicle for early warning when the rear vehicle of the parking point enters the dynamic electronic fence with the direction. Because this application is through the intelligent dynamic fence that generates in vehicle rear that stops violating the regulations, when the rear vehicle drove into the fence scope, can the automatic trigger "there is the warning that the vehicle stops violating the regulations in the place ahead" remind, can carry out the warning to the rear vehicle that the vehicle stopped violating the regulations on highway automatically to effectively ensured the safe driving of vehicle, further promoted the operating efficiency of road network.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic flow chart of an early warning method after illegal parking on a road according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an electronic fence generated after a vehicle is found to be parked continuously according to an embodiment of the present application;
FIG. 3 is a high-speed violation early warning information data summary provided by the embodiment of the present application;
fig. 4 is a process block diagram of an early warning process after illegal parking on a road according to an embodiment of the present application;
fig. 5 is a schematic flow chart of an early warning method after illegal parking on a road according to an embodiment of the present disclosure;
fig. 6 is a schematic device diagram of an early warning device after illegal parking on a road according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of a terminal according to an embodiment of the present application.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. 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.
The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of systems and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Up to now, in the technical scheme of expressway illegal parking early warning, monitoring is mainly carried out through image acquisition equipment, when large trucks are found to stop on the expressway in an illegal mode, the remote terminal is connected with the vehicles to carry out early warning on the vehicles, and the vehicles are prompted to drive away from a stopping point as soon as possible. However, when a large truck cannot be driven away as soon as possible due to special reasons such as vehicle faults, and the like, since a rear vehicle cannot know the illegal parking information of the large truck in front, the front road is probably unknown and braking measures cannot be taken in time, so that an accident happens, the safe driving coefficient of the vehicle is reduced, the vehicle cannot continue to drive after the traffic accident, the traffic jam is caused, and the running efficiency of a road network is further reduced. Therefore, the application provides a method, a device, a storage medium and a terminal for early warning after illegal parking on a road, so as to solve the problems in the related technical problems. In the technical scheme provided by the application, because this application is through the intelligent dynamic fence that generates in the vehicle rear of stopping violating the regulations, when the rear vehicle went into the fence scope, can the automatic trigger "there is the vehicle in the place ahead to stop violating the regulations" the early warning is reminded, can carry out the early warning to the rear vehicle that the vehicle stopped violating the regulations on the highway automatically to effectively ensured the safe driving of vehicle, further promoted the operating efficiency of road network, adopt the exemplary embodiment to carry out the detailed description below.
The following describes in detail a method for warning after illegal parking on a road according to an embodiment of the present application with reference to fig. 1 to 5. The method can be realized by depending on a computer program and can be run on a warning device after illegal parking on a highway based on a Von Neumann system. The computer program may be integrated into the application or may run as a separate tool-like application.
Referring to fig. 1, a schematic flow chart of an early warning method after illegal parking on a road is provided according to an embodiment of the present application. As shown in fig. 1, the method of the embodiment of the present application may include the following steps:
s101, when the current vehicle continuously stops in a violation manner on a road, acquiring longitude and latitude coordinate points of the current vehicle;
the continuous illegal parking on the highway is judged to be continuous illegal parking when the parking duration is greater than a preset time threshold value after the current vehicle has the illegal parking on the highway, and the longitude and latitude coordinate points are generated by collecting vehicle track data through positioning equipment installed on the current vehicle. The positioning equipment arranged on the vehicle can be a GPS navigation terminal, a Beidou positioning terminal and the like. The application preferably selects the Beidou positioning terminal.
Generally, in the embodiment of the application, a mode of judging whether the current vehicle is parked illegally on the expressway is that firstly, after the Beidou positioning terminal installed on the current vehicle runs along with the starting of the vehicle, the traveling track data of the current vehicle is continuously acquired in real time through a preset track acquisition cycle, wherein the traveling track data comprises parameters such as coordinates, traveling speed, traveling direction and current altitude, and the acquisition cycle can be acquired once in 30 seconds. For example, after a Beidou positioning terminal installed on a current vehicle acquires the running track data of the current vehicle through a 30-second acquisition cycle, the acquired running track data is sent (reported) to a data processing center by adopting a track data synchronization message middleware server for real-time calculation, and the data processing center can be a background in a main stream.
The data processing center receives the vehicle track data in the current acquisition cycle in real time, analyzes the vehicle track data by adopting a communication service analysis protocol to obtain the analyzed vehicle track data, preprocesses the analyzed vehicle track data, and identifies whether the vehicle is illegally parked on the road according to the preprocessed vehicle track data.
When judging whether the vehicle is in continuous illegal parking, firstly receiving the trajectory data of the vehicle in real time after the vehicle is determined to be in the illegal parking on the road, then calculating the displacement in the preset time period based on the trajectory data of the vehicle received in real time, and finally determining that the vehicle is in the illegal parking on the road when the displacement in the preset time period is smaller than the preset value.
Specifically, the vehicle trajectory data after the analysis is preprocessed, specifically: firstly, judging whether track point characteristic indexes of analyzed vehicle track data are abnormal or not; the track point characteristic indexes at least comprise longitude and latitude abnormal points, speed abnormality and direction abnormality. If not, judging whether the driving parameters of the analyzed vehicle track data are abnormal or not; the driving parameters at least comprise average speed, straight-line distance, time interval and number of track points with the previous track point, if the above conditions are not met, the fact that the currently reported driving track data is abnormal is indicated, and finally the analyzed vehicle track data is sent to a cache server to be stored. Wherein, the cache server preferably selects a state cache server. For example, according to the reported current vehicle driving track, longitude and latitude abnormal points (out of China), abnormal track points of speed and direction are filtered, initial filtering is carried out, and then the filtering track is comprehensively considered according to the factors such as the average speed, the straight line distance, the time interval, the number of the track points and the like among the track points.
Specifically, when recognizing whether the vehicle is illegally parked on the road according to the preprocessed vehicle track data, the method specifically includes: the method comprises the steps of firstly loading vehicle track data of a previous period of a current acquisition period from a cache server, then judging whether a vehicle position point in the current acquisition period is a parking start point according to the preprocessed vehicle track data and the vehicle track data of the previous period, if so, loading the vehicle track data of a preset time period before the parking start point from the cache server, matching road network data corresponding to the vehicle position point in the current acquisition period according to the vehicle track data of the preset time period, then loading a reasonable parking area POI coordinate point corresponding to the highway network data when the matched road network data are the highway network data, and finally determining that the vehicle illegally parks on a road when the vehicle position point in the current acquisition period is not in the reasonable parking area POI coordinate point.
In one possible implementation manner, after the current vehicle is judged to have continuous illegal parking on the expressway, the longitude and latitude coordinate point of the parking starting point of the current vehicle is firstly acquired.
S102, identifying the foothold of a parking point and road network data according to the longitude and latitude coordinate points of the current vehicle;
where the parking spot drop is the point where the current vehicle is parked and the highway level exhibits a ninety degree position point. The road network data is obtained by identifying and loading the expressway corresponding to the position point according to the position point of the current vehicle, and the expressway network data which is stored in advance is obtained.
In the embodiment of the application, when the initial parking point position of a vehicle is judged, the instantaneous speed of the vehicle is calculated according to the preprocessed vehicle track data, when the instantaneous speed of the vehicle is smaller than a preset threshold value, the position coordinate of the vehicle in the previous period is obtained from the vehicle track data in the previous period, then the current position coordinate of the vehicle is obtained from the preprocessed vehicle track data, the distance is calculated according to the position coordinate of the vehicle in the previous period and the current position coordinate of the vehicle, and finally when the distance is smaller than the preset threshold value, the vehicle position point in the current acquisition period is determined as the initial parking point.
In a possible implementation manner, after the longitude and latitude coordinate point of the current vehicle parking starting point is acquired based on step S101, a foot exhibiting ninety degrees with the road surface of the expressway is created according to the longitude and latitude coordinate point and is identified, and road network data corresponding to the position point where the current vehicle is parked is loaded from the database after the identification.
S103, acquiring a road foot list in a preset range behind the parking spot based on the parking spot foot and road network data, and acquiring a longitude and latitude coordinate chain corresponding to the road foot list in the preset range;
for example, by receiving and judging each reported track point of the vehicle, if the instantaneous speed of the vehicle is less than 5km/h, the distance between the vehicle and the last reported point (the reported track point in the last sampling period stored in the state cache) is calculated, and if the distance is less than 1 meter, the vehicle is considered as the parking starting point. After the parking is determined to be started, the highway network matching is carried out, firstly, the driving track data of a plurality of minutes (for example, 10 minutes) before the parking is obtained, then, five track points before the parking are selected, the driving track is matched with roads of the highway network nearby the periphery, and whether the parking is violated at a high speed or not is judged.
Judging whether the vehicle is in a high-speed illegal parking area or not comprises judging whether the vehicle is in a reasonable parking area or not and whether the illegal parking time is greater than a preset value or not, and firstly loading POI coordinates of all reasonable parking areas such as gas stations, service areas, toll booths and the like which are collected in advance. And judging that the vehicle parks in a reasonable parking area in the range, otherwise, judging that the vehicle parks in an illegal way on the highway. And then, continuously performing real-time flow calculation according to the reported track points, wherein the accumulated displacement is less than 50m within 5 minutes, namely the distance between the current track point and the parking starting point (recorded) is less than 50m, the time interval is more than 5min, and the illegal parking is judged to be continuously carried out at a high speed according to the rule.
In a possible implementation mode, after the current vehicle has continuous illegal parking, a 3-kilometer road footdrop list and a longitude and latitude coordinate chain along the expressway after parking are obtained according to the judged footdrop of the parking point and the road network data linkId.
S104, generating a fence area with a preset length-width ratio according to the longitude and latitude coordinates in the longitude and latitude coordinate chain, and creating a dynamic electronic fence with a direction based on the fence area with the preset length-width ratio;
the electronic fence is a dynamic electronic fence intelligently generated for a rear vehicle after the vehicle continuously parks in an illegal way, when the rear vehicle enters the range of the electronic fence, an early warning prompt of 'the front vehicle stops in an illegal way' can be automatically triggered, and the electronic fence is shown in fig. 2 for example.
In a possible implementation manner, after the longitude and latitude coordinate chain is obtained according to step S103, a preset length-width ratio is obtained as a parameter value (for example, the parameter is 3km in length and 20m in width), a road buffer area (fence coordinate) with 3km in width and 20m is generated by using the preset length-width ratio as a parameter and combining the longitude and latitude coordinates in the longitude and latitude coordinate chain, and finally a dynamic electronic fence with a direction (a true north included angle of a starting longitude and latitude connecting line) is created in real time.
And S105, when the rear vehicle of the parking spot enters the dynamic electronic fence with the direction, generating early warning information and sending the early warning information to early warning receiving equipment of the rear vehicle for early warning.
In a possible implementation mode, whether a vehicle enters an electronic fence or not is verified according to real-time reported longitude and latitude, when the fact that the rear vehicle triggers to enter and exit the electronic fence is judged, early warning information is generated and pushed to an early warning receiving server in real time, the early warning receiving server receives the early warning information, meanwhile, the information is pushed to a vehicle early warning terminal, a driver is reminded in time, and risks are effectively avoided. The vehicle early warning terminal can be an early warning terminal installed on a vehicle or a mobile phone of a driver, and can be set according to actual conditions, and the vehicle early warning terminal is not limited here.
Further, firstly receiving the track data of the vehicle in real time, then calculating the displacement in the preset time period based on the track data of the vehicle received in real time, then determining that the vehicle drives away when the displacement in the preset time period is larger than the preset value, and finally canceling the created dynamic electronic fence with the direction and relieving the early warning.
Further, the vehicle real-time early warning detail is used in the fields of big data off-line data application analysis, Al early warning statistics, visualization analysis and the like.
For example, as shown in fig. 3, fig. 3 is a data summary chart of the high-speed illegal parking warning information provided by the embodiment of the present application, the accuracy of the AI monitoring system in determining illegal parking of a large truck on an expressway can reach 88%, and the number of rear-vehicle warning reminders for illegal parking vehicles on the expressway can reach about 20 ten thousand per day. In order to verify the accuracy and the user experience effect of the high-speed illegal parking rear vehicle early warning, the online operation department starts to call the high-speed illegal parking rear vehicle early warning from 4 months and 13 days in 2020, the application is adopted to verify the number 1593 of the high-speed illegal parking rear vehicle early warning, wherein the number of effective telephones is 318, the percentage is 20%, the accuracy of the verification is 79%, and the accuracy is equal to the number of front parked vehicles/the number of effective telephones.
For example, as shown in fig. 4, fig. 4 is a process block diagram of an early warning process after an illegal parking on a road according to an embodiment of the present application.
The early warning device after illegal parking on the road firstly receives track information reported by vehicles, analyzes the reported track information according to an internal communication protocol, and then performs data initialization on the reported track information, wherein a data filtering rule during initialization comprises filtering non-track report points, filtering tracks with longitude and latitude exceeding the Chinese range and filtering tracks with data analysis errors.
And judging whether the track points exist or not. If not, determining whether the time interval between the last reported track data and the current reported track is less than 5 minutes, whether the speed is less than 5 kilometers per hour, whether the interval between two points is more than 1 second, and whether the distance is less than or equal to 1 meter, and if so, setting the last reported point as a parking starting point. If the distance between the current point and the parking starting point is less than 50 meters, judging whether the distance between the current point and the parking starting point is less than 50 meters, if not, judging whether early warning information is sent, if so, deleting the fence and taking charge of emptying the parking starting point data.
And judging whether the time interval between the current point and the previous point is more than or equal to 5 minutes, and if so, emptying the parking starting point data.
And then judging whether the time interval between the current point and the parking starting point is more than or equal to 5 minutes of the time length threshold value, and if so, loading data of a service area and a toll station.
And then judging whether the parking point is in the service area or the range of the toll station 550M, if so, searching a coordinate system of the toll station of the service area according to the nine-square coordinate system of the current point, and judging the distance between the current coordinate and the toll station of the service area. If not, inquiring the track within 10 minutes before the parking point, acquiring 5 track points with the speed greater than 5, inquiring track data and judging whether the current road is a highway or not, if so, calculating a due north included angle of the initial longitude and latitude connecting line, generating a fence with the width of 20 meters and the direction along the road, and early warning for a rear vehicle.
In the embodiment of the application, the early warning device for the illegal parking on the highway firstly judges that the current vehicle continuously stops the illegal parking on the highway, acquires longitude and latitude coordinate points of the current vehicle, identifies the parking point foot and the road network data according to the longitude and latitude coordinate points, acquires a road foot list in a preset range behind the parking point based on the parking point foot and the road network data, acquires a longitude and latitude coordinate chain corresponding to the foot list, generates a fence area according to coordinates in the coordinate chain, establishes a dynamic electronic fence with a direction based on the fence area with a preset length-width ratio, and finally generates early warning information and sends the early warning information to early warning receiving equipment of a rear vehicle for early warning when the rear vehicle of the parking point enters the dynamic electronic fence with the direction. Because this application is through the intelligent dynamic fence that generates in vehicle rear of stopping violating the regulations, when the rear vehicle went into the fence scope, can the automatic trigger "there is the vehicle in the place ahead to stop violating the regulations" early warning, can carry out the early warning to the rear vehicle that the vehicle stopped violating the regulations on the highway automatically to effectively ensured the safe driving of vehicle, further promoted the operating efficiency of road network.
Referring to fig. 5, a schematic flow chart of determining whether a vehicle on a road continuously parks in an illegal manner is provided for an embodiment of the present application. As shown in fig. 5, the following steps may be included:
s201, receiving and analyzing vehicle track data in a current acquisition cycle;
s202, judging whether the track point characteristic indexes of the analyzed vehicle track data are abnormal or not; wherein, the track point characteristic indexes at least comprise longitude and latitude abnormal points, speed abnormality and direction abnormality;
s203, if not, judging whether the driving parameters of the analyzed vehicle track data are abnormal; the driving parameters at least comprise average speed, straight line distance, time interval and track point number with the previous track point;
s204, if not, sending the analyzed vehicle track data to a cache server for storage;
s205, when the current vehicle continuously stops in violation on the road, acquiring longitude and latitude coordinate points of the current vehicle;
s206, loading vehicle track data of a previous period of the current acquisition period from a cache server;
s207, judging whether the vehicle position point in the current acquisition period is a stop starting point or not according to the preprocessed vehicle track data and the vehicle track data in the previous period;
s208, if yes, loading vehicle track data of a preset time period before the parking point is started from the cache server;
s209, matching road network data corresponding to the vehicle position point in the current acquisition cycle according to the vehicle track data in the preset time period;
s210, when the matched road network data is highway network data, loading a reasonable parking area POI coordinate point corresponding to the highway network data;
s211, when the vehicle position point in the current acquisition cycle is no longer in the POI coordinate point of the reasonable parking area, determining that the vehicle illegally parks on the highway;
s212, receiving the trajectory data of the vehicle in real time after the vehicle is determined to stop on the highway in a violation manner, and calculating the displacement in the preset time period based on the trajectory data of the vehicle received in real time;
and S213, when the displacement in the preset time period is smaller than the preset value, determining that the vehicle continuously stops illegally on the road.
In the embodiment of the application, the early warning device for illegal parking on a road firstly judges that the current vehicle continuously stops in an illegal manner on the road, acquires longitude and latitude coordinate points of the current vehicle, then identifies the parking point foot and road network data according to the longitude and latitude coordinate points, then acquires a road foot list in a preset range behind the parking point based on the parking point foot and road network data, acquires a longitude and latitude coordinate chain corresponding to the foot list, generates a fence area according to coordinates in the coordinate chain, creates a dynamic electronic fence with a direction based on the fence area with a preset length-width ratio, and finally generates early warning information and sends the early warning information to early warning receiving equipment of a rear vehicle for early warning when the rear vehicle of the parking point enters the dynamic electronic fence with the direction. Because this application is through the intelligent dynamic fence that generates in vehicle rear of stopping violating the regulations, when the rear vehicle went into the fence scope, can the automatic trigger "there is the vehicle in the place ahead to stop violating the regulations" early warning, can carry out the early warning to the rear vehicle that the vehicle stopped violating the regulations on the highway automatically to effectively ensured the safe driving of vehicle, further promoted the operating efficiency of road network.
The following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details which are not disclosed in the embodiments of the apparatus of the present invention, reference is made to the embodiments of the method of the present invention.
Fig. 6 is a schematic structural diagram of a warning device after illegal parking on a road according to an exemplary embodiment of the present invention. The early warning device after illegal parking on the road can be realized to be all or part of the intelligent robot through software, hardware or the combination of the software and the hardware. The device 1 comprises a coordinate point acquisition module 10, a parameter identification module 20, a coordinate chain acquisition module 30, a dynamic electronic fence creation module 40 and an early warning module 50.
The coordinate point acquisition module 10 is used for acquiring longitude and latitude coordinate points of the current vehicle when the current vehicle continuously stops in violation on a road;
the parameter identification module 20 is used for identifying the foot of the parking point and the road network data according to the longitude and latitude coordinate points of the current vehicle;
the coordinate chain acquiring module 30 is configured to acquire a road foot list in a preset range behind the parking spot based on the parking spot foot and the road network data, and acquire a longitude and latitude coordinate chain corresponding to the road foot list in the preset range;
the dynamic electronic fence creating module 40 is configured to generate a fence area with a preset length-width ratio according to the longitude and latitude coordinates in the longitude and latitude coordinate chain, and create a dynamic electronic fence with a direction based on the fence area with the preset length-width ratio;
and the early warning module 50 is used for generating early warning information and sending the early warning information to early warning receiving equipment of a rear vehicle for early warning when the rear vehicle of the parking spot enters the dynamic electronic fence with the direction.
It should be noted that, when the warning device for an illegal parking on a road provided in the above embodiment executes the warning method for an illegal parking on a road, the division of the above functional modules is only used for illustration, and in practical application, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the above described functions. In addition, the early warning device after illegal parking on the road provided by the embodiment and the early warning method after illegal parking on the road provided by the embodiment belong to the same concept, the implementation process is embodied in the method embodiment, and details are not repeated here.
The above-mentioned serial numbers of the embodiments of the present application are merely for description, and do not represent the advantages and disadvantages of the embodiments.
In the embodiment of the application, the early warning device for the illegal parking on the highway firstly judges that the current vehicle continuously stops the illegal parking on the highway, acquires longitude and latitude coordinate points of the current vehicle, identifies the parking point foot and the road network data according to the longitude and latitude coordinate points, acquires a road foot list in a preset range behind the parking point based on the parking point foot and the road network data, acquires a longitude and latitude coordinate chain corresponding to the foot list, generates a fence area according to coordinates in the coordinate chain, establishes a dynamic electronic fence with a direction based on the fence area with a preset length-width ratio, and finally generates early warning information and sends the early warning information to early warning receiving equipment of a rear vehicle for early warning when the rear vehicle of the parking point enters the dynamic electronic fence with the direction. Because this application is through the intelligent dynamic fence that generates in vehicle rear that stops violating the regulations, when the rear vehicle drove into the fence scope, can the automatic trigger "there is the warning that the vehicle stops violating the regulations in the place ahead" remind, can carry out the warning to the rear vehicle that the vehicle stopped violating the regulations on highway automatically to effectively ensured the safe driving of vehicle, further promoted the operating efficiency of road network.
The invention also provides a computer readable medium, on which program instructions are stored, and the program instructions, when executed by a processor, implement the method for warning after illegal parking on a road provided by the above method embodiments.
The invention also provides a computer program product containing instructions, which when run on a computer causes the computer to execute the method for warning after illegal parking on a road according to the above method embodiments.
Please refer to fig. 7, which provides a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in fig. 7, terminal 1000 can include: at least one processor 1001, at least one network interface 1004, a user interface 1003, memory 1005, at least one communication bus 1002.
The communication bus 1002 is used to implement connection communication among these components.
The user interface 1003 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.
The Memory 1005 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 1005 includes a non-transitory computer-readable medium. The memory 1005 may be used to store an instruction, a program, code, a set of codes, or a set of instructions. The memory 1005 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 1005 may alternatively be at least one memory device located remotely from the processor 1001. As shown in fig. 7, a memory 1005, which is a kind of computer storage medium, may include an operating system, a network communication module, a user interface module, and an advance warning application program after illegal parking on a road.
In the terminal 1000 shown in fig. 7, the user interface 1003 is mainly used as an interface for providing input for a user, and acquiring data input by the user; the processor 1001 may be configured to call the pre-warning application program stored in the memory 1005 after the illegal parking on the road, and specifically perform the following operations:
when the current vehicle continuously stops in violation on the highway, acquiring longitude and latitude coordinate points of the current vehicle;
identifying the foothold of the parking spot and road network data according to the longitude and latitude coordinate points of the current vehicle;
acquiring a road foot list in a preset range behind a parking spot based on the parking spot foot and road network data, and acquiring a longitude and latitude coordinate chain corresponding to the road foot list in the preset range;
generating a fence area with a preset length-width ratio according to the longitude and latitude coordinates in the longitude and latitude coordinate chain, and creating a dynamic electronic fence with a direction based on the fence area with the preset length-width ratio;
when a vehicle behind a parking spot enters the dynamic electronic fence with the direction, generating early warning information and sending the early warning information to early warning receiving equipment of the vehicle behind for early warning.
In one embodiment, the processor 1001 further performs the following operations before performing when the preceding vehicle continues to stop the illegal vehicle on the road:
receiving and analyzing vehicle track data in a current acquisition cycle;
and preprocessing the analyzed vehicle track data, and identifying whether the vehicle is illegally parked on the road according to the preprocessed vehicle track data.
In one embodiment, when performing the preprocessing of the parsed vehicle trajectory data, the processor 1001 specifically performs the following operations:
judging whether the track point characteristic indexes of the analyzed vehicle track data are abnormal or not; wherein, the track point characteristic indexes at least comprise longitude and latitude abnormal points, speed abnormality and direction abnormality;
if not, judging whether the driving parameters of the analyzed vehicle track data are abnormal or not; the driving parameters at least comprise average speed, straight line distance, time interval and track point number with the previous track point;
and if not, sending the analyzed vehicle track data to a cache server for storage.
In one embodiment, when the processor 1001 identifies whether the vehicle is an illegal parking on the highway according to the preprocessed vehicle trajectory data, the following operations are specifically performed:
loading vehicle track data of a previous period of a current acquisition period from a cache server;
judging whether the vehicle position point in the current acquisition period is a parking starting point or not according to the preprocessed vehicle track data and the vehicle track data in the previous period;
if so, loading vehicle track data of a preset time period before the parking point is started from the cache server;
matching road network data corresponding to the vehicle position point in the current acquisition cycle according to the vehicle track data in the preset time period;
when the matched road network data is highway network data, loading a reasonable parking area POI coordinate point corresponding to the highway network data;
and when the vehicle position point in the current acquisition cycle is no longer in the POI coordinate point of the reasonable parking area, determining that the vehicle illegally parks on the road.
In one embodiment, the processor 1001 also performs the following operations:
receiving track data of the vehicle in real time after the vehicle is determined to stop illegally on the highway;
calculating displacement in a preset time period based on the trajectory data of the vehicle received in real time;
and when the displacement in the preset time period is smaller than the preset value, determining that the vehicle continuously stops illegally on the road.
In one embodiment, when the processor 1001 determines whether the vehicle position point in the current collection cycle is the start parking point according to the preprocessed vehicle trajectory data and the vehicle trajectory data in the previous cycle, the following operations are specifically performed:
calculating the instantaneous speed of the vehicle according to the preprocessed vehicle track data;
when the instantaneous speed of the vehicle is smaller than a preset threshold value, acquiring the position coordinates of the vehicle in the previous period from the vehicle track data in the previous period;
acquiring the current position coordinates of the vehicle from the preprocessed vehicle track data;
calculating a distance based on the position coordinates of the vehicle in the previous period and the current position coordinates of the vehicle;
and when the distance is smaller than a preset threshold value, determining the vehicle position point in the current acquisition cycle as a starting parking point.
In one embodiment, the processor 1001 also performs the following operations:
receiving track data of a vehicle in real time;
calculating a displacement in a preset time period based on trajectory data of the vehicle received in real time;
when the displacement in the preset time period is larger than a preset value, determining that the vehicle is driven away;
and canceling the created dynamic electronic fence with the direction, and relieving the early warning.
In the embodiment of the application, the early warning device for the illegal parking on the highway firstly judges that the current vehicle continuously stops the illegal parking on the highway, acquires longitude and latitude coordinate points of the current vehicle, identifies the parking point foot and the road network data according to the longitude and latitude coordinate points, acquires a road foot list in a preset range behind the parking point based on the parking point foot and the road network data, acquires a longitude and latitude coordinate chain corresponding to the foot list, generates a fence area according to coordinates in the coordinate chain, establishes a dynamic electronic fence with a direction based on the fence area with a preset length-width ratio, and finally generates early warning information and sends the early warning information to early warning receiving equipment of a rear vehicle for early warning when the rear vehicle of the parking point enters the dynamic electronic fence with the direction. Because this application is through the intelligent dynamic fence that generates in vehicle rear of stopping violating the regulations, when the rear vehicle went into the fence scope, can the automatic trigger "there is the vehicle in the place ahead to stop violating the regulations" early warning, can carry out the early warning to the rear vehicle that the vehicle stopped violating the regulations on the highway automatically to effectively ensured the safe driving of vehicle, further promoted the operating efficiency of road network.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware that is related to instructions of a computer program, and the program can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory or a random access memory.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and should not be taken as limiting the scope of the present application, so that the present application will be covered by the appended claims.
Claims (7)
1. A method for warning after illegal parking on a road is characterized by comprising the following steps:
when the current vehicle continuously stops in violation on the road, acquiring longitude and latitude coordinate points of the current vehicle;
identifying the footfall of the parking point and road network data according to the longitude and latitude coordinate points of the current vehicle;
acquiring a road foot list in a preset range behind the parking spot based on the parking spot foot and the road network data, and acquiring a longitude and latitude coordinate chain corresponding to the road foot list in the preset range;
generating a fence area with a preset length-width ratio according to the longitude and latitude coordinates in the longitude and latitude coordinate chain, and creating a dynamic electronic fence with a direction based on the fence area with the preset length-width ratio; the electronic fence is a dynamic electronic fence intelligently generated for a rear vehicle after the vehicle continuously violates the parking;
when a vehicle behind the parking spot enters the dynamic electronic fence with the direction, generating early warning information and sending the early warning information to early warning receiving equipment of the vehicle behind for early warning, wherein an early warning accuracy calculation formula is as follows: the accuracy rate is the number of front parked vehicles/the number of effective telephones;
wherein, before the present vehicle appears on the highway and continuously breaks the parking in violation, still include:
receiving and analyzing vehicle track data in a current acquisition cycle;
preprocessing the analyzed vehicle track data, and identifying whether the vehicle is illegally parked on the road according to the preprocessed vehicle track data;
wherein, the identifying whether the vehicle is illegally parked on the highway according to the preprocessed vehicle track data comprises:
loading vehicle track data of a previous period of the current acquisition period from a cache server;
judging whether the vehicle position point in the current acquisition period is a parking starting point or not according to the preprocessed vehicle track data and the vehicle track data in the previous period;
if yes, loading vehicle track data in a preset time period before the parking starting point from the cache server;
matching road network data corresponding to the vehicle position point in the current acquisition cycle according to the vehicle track data in the preset time period;
when the matched road network data is highway network data, loading a reasonable parking area POI coordinate point corresponding to the highway network data;
when the vehicle position point in the current acquisition cycle is no longer in the POI coordinate point of the reasonable parking area, determining that the vehicle illegally parks on the highway;
wherein, the judging whether the vehicle position point in the current acquisition cycle is a stop starting point according to the preprocessed vehicle track data and the vehicle track data in the previous cycle comprises:
calculating the instantaneous speed of the vehicle according to the preprocessed vehicle track data;
when the instantaneous speed of the vehicle is smaller than a preset threshold value, acquiring the position coordinates of the vehicle in the previous period from the vehicle track data in the previous period;
acquiring the current position coordinates of the vehicle from the preprocessed vehicle track data;
calculating a distance based on the position coordinates of the vehicle in the previous period and the current position coordinates of the vehicle;
and when the distance is smaller than a preset threshold value, determining the vehicle position point in the current acquisition cycle as a starting parking point.
2. The method of claim 1, wherein the preprocessing the parsed vehicle trajectory data comprises:
judging whether the track point characteristic indexes of the analyzed vehicle track data are abnormal or not; the track point characteristic indexes at least comprise longitude and latitude abnormal points, speed abnormality and direction abnormality;
if not, judging whether the driving parameters of the analyzed vehicle track data are abnormal or not; the driving parameters at least comprise average speed, straight-line distance, time interval and track point number with the previous track point;
and if not, sending the analyzed vehicle track data to a cache server for storage.
3. The method of claim 1, further comprising:
receiving track data of the vehicle in real time after the vehicle is determined to stop illegally on the highway;
calculating displacement in a preset time period based on the real-time received trajectory data of the vehicle;
and when the displacement in the preset time period is smaller than a preset value, determining that the vehicle continuously stops illegally on the road.
4. The method of claim 1, further comprising:
receiving trajectory data of the vehicle in real time;
calculating displacement in a preset time period based on the real-time received trajectory data of the vehicle;
when the displacement in the preset time period is larger than a preset value, determining that the vehicle is driven away;
and canceling the created dynamic electronic fence with the direction, and removing early warning.
5. An early warning device after an illegal parking on a road, characterized in that the device comprises:
the coordinate point acquisition module is used for acquiring longitude and latitude coordinate points of the current vehicle when the current vehicle continuously stops in violation on a road;
the parameter identification module is used for identifying the foot of the parking point and the road network data according to the longitude and latitude coordinate points of the current vehicle;
the coordinate chain acquisition module is used for acquiring a road foot list in a preset range behind the parking spot based on the parking spot foot and the road network data and acquiring a longitude and latitude coordinate chain corresponding to the road foot list in the preset range;
the dynamic electronic fence creating module is used for generating a fence area with a preset length-width ratio according to the longitude and latitude coordinates in the longitude and latitude coordinate chain and creating a dynamic electronic fence with a direction based on the fence area with the preset length-width ratio; the electronic fence is a dynamic electronic fence intelligently generated for a rear vehicle after the vehicle continuously violates the parking;
the early warning module is used for generating early warning information and sending the early warning information to early warning receiving equipment of the rear vehicle for early warning when the rear vehicle of the parking spot enters the dynamic electronic fence with the direction, wherein an early warning accuracy calculation formula is as follows: the accuracy rate is the number of front parked vehicles/the number of effective telephones; wherein the apparatus is further configured to:
before the current vehicle continuously stops in violation on the road, the method further comprises the following steps:
receiving and analyzing vehicle track data in a current acquisition cycle;
preprocessing the analyzed vehicle track data, and identifying whether the vehicle is illegally parked on a road according to the preprocessed vehicle track data;
wherein, the identifying whether the vehicle is illegally parked on the highway according to the preprocessed vehicle track data comprises:
loading vehicle track data of a previous period of the current acquisition period from a cache server;
judging whether the vehicle position point in the current acquisition period is a parking starting point or not according to the preprocessed vehicle track data and the vehicle track data in the previous period;
if yes, loading vehicle track data in a preset time period before the parking starting point from the cache server;
matching road network data corresponding to the vehicle position point in the current acquisition cycle according to the vehicle track data in the preset time period;
when the matched road network data is highway network data, loading a reasonable parking area POI coordinate point corresponding to the highway network data;
when the vehicle position point in the current acquisition period is no longer in the POI coordinate point of the reasonable parking area, determining that the vehicle illegally parks on the highway;
wherein, the judging whether the vehicle position point in the current acquisition cycle is a stop starting point according to the preprocessed vehicle track data and the vehicle track data in the previous cycle comprises:
calculating the instantaneous speed of the vehicle according to the preprocessed vehicle track data;
when the instantaneous speed of the vehicle is smaller than a preset threshold value, acquiring the position coordinates of the vehicle in the previous period from the vehicle track data in the previous period;
acquiring the current position coordinates of the vehicle from the preprocessed vehicle track data;
calculating a distance based on the position coordinates of the vehicle in the previous period and the current position coordinates of the vehicle;
and when the distance is smaller than a preset threshold value, determining the vehicle position point in the current acquisition cycle as a starting parking point.
6. A computer storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to perform the method steps according to any one of claims 1 to 4.
7. A terminal, comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of claims 1-4.
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