CN112820122A

Movatterモバイル変換

Info

Publication number: CN112820122A
Application number: CN202110117510.7A
Authority: CN
Inventors: 胡渐佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-05-18

Abstract

The invention provides a variable lane control method and system based on a driving direction, which are characterized in that a vehicle driving path is judged according to a vehicle position and a driving destination, the driving direction at an intersection is judged according to the driving path, if the driving direction at the intersection is unique, the vehicle information of the driving direction is judged, if the driving direction is not unique, a user is reminded to select the driving direction through the human-computer interaction of a vehicle terminal and the user, the vehicle information of the direction is judged according to the selection of the user, and a variable lane is controlled according to the vehicle information in different directions. According to the method, the driving direction of the vehicle is judged through the fusion of intelligent navigation and human-computer interaction, and the accurate control of the variable lane is realized.

Description

Variable lane control method and system based on driving direction

Technical Field

The invention relates to the technical field of traffic control, in particular to a lane-variable control method and system based on a driving direction.

Background

A crossroad usually has a plurality of crossing directions, and each crossing direction usually has three specific driving directions of left turn, straight going and right turn, and the current control method of intelligent traffic communication is based on the traffic flow detection of crossing directions, such as intelligent cameras, induction coils, radar, ultrasonic fixed point detection devices, or wireless positioning vehicle-mounted mobile detection devices, which are all used for detecting the whole traffic flow in a certain crossing direction, but cannot specifically detect the traffic flow in different driving directions.

The lane change is prohibited by the solid lane, and left-turn, straight-going and right-turn vehicles on the solid lane can be distinguished through the solid lane, but the length of the solid lane at the intersection is only dozens of meters, when the vehicle queued at the intersection is longer, the driving direction of the vehicle on the lane cannot be judged through the lane, and for a large number of combined lanes of straight-going + left-turn, straight-going + right-turn, the vehicles which go straight, left-turn and right-turn cannot be distinguished specifically. And the accurate control of traffic cannot be realized based on the vehicle information of the intersection direction.

The variable lane can adjust the driving direction according to the traffic flow, and the traffic capacity of the intersection is improved. The 'variable lane control method based on navigation information' of application No. 2020102670624 determines the direction of a variable lane by using the position and the driving direction of a vehicle in the navigation information, and intelligent navigation can presume the driving direction of the vehicle at a traffic intersection through matching of a running track and a map, but when a plurality of navigation paths exist at the intersection, or when a user does not walk a recommended path, or when the user changes the navigation path, the driving direction needs to be judged through the change of the position of the vehicle, that is, navigation can only judge the driving direction according to the running track of the vehicle, that is, after the vehicle passes through the traffic intersection, the driving direction of the vehicle is obtained, and the judgment of the driving direction is delayed.

Disclosure of Invention

The invention aims to provide a variable lane control method and system based on a driving direction, which can realize the accurate control of a variable lane and improve the crossing traffic efficiency according to the specific driving direction of a vehicle in each crossing direction.

The invention relates to a lane-variable control method based on a driving direction, which is characterized by comprising the following steps of:

(1) determining a driving destination according to the driving information;

(2) judging the current traffic intersection according to the position information, and calculating a driving path according to the position and the destination;

(3) judging whether the driving direction passing through the current intersection is unique or not according to the driving path;

(4) if the driving direction is unique, determining the vehicle information of the direction according to the driving direction;

(5) if the driving direction is not unique, reminding a user of selecting the driving direction passing through the current intersection through reminding information, and determining vehicle information of the direction according to the driving direction selected by the user;

(6) controlling the driving direction of the variable lane at the intersection according to the vehicle information of each driving direction;

(7) and prompting the driving direction of the variable lane through the vehicle terminal.

When a motor vehicle passes through a traffic intersection, the traffic intersection where the motor vehicle is located is judged according to the position of the vehicle, the vehicle running path is judged according to the position of the vehicle and the running destination, the running direction at the current intersection is judged according to the running path, if the vehicle has only one running direction at the current intersection, the judged running direction can be directly used as the requirement data for controlling the intersection variable lane, if the vehicle has two or more running directions at the current intersection, the user is reminded to select one running direction through the human-computer interaction of the vehicle terminal and the user, then the running direction selected by the user is used as the requirement data for controlling the intersection variable lane, and the accurate control of the intersection variable lane is realized according to the running direction of the vehicle. According to the invention, through the integration of intelligent navigation and human-computer interaction, on one hand, when multiple paths occur at the intersection, the driving direction is selected through the human-computer interaction, so that the problem of lagging judgment of the driving direction caused by the intelligent navigation can be avoided, and on the other hand, when the driving path of the intersection is unique, the driving direction is judged through the intelligent navigation without manual participation, so that the intelligent experience is improved.

In addition, the driving direction of the vehicle is judged in advance at the position far away from the intersection crossing area, the distance for obtaining the driving direction can be enlarged, the monitoring range of the traffic intersection is enabled to extend forwards to a longer road section, the driving direction of the variable lane is prompted through the vehicle terminal, the driver can know the driving direction of the variable lane in advance without being limited by the sight distance, and the road-side-based traffic intersection monitoring device is more convenient for the driver to check than a roadside-arranged prompting device and is not influenced by the environment.

Drawings

Fig. 1 is a flow chart illustrating a control method according to an embodiment of the invention.

FIG. 2 is a schematic diagram of a physical keyboard embodiment of the present invention.

Fig. 3 is a schematic view of a structural framework of another embodiment of the present invention.

Detailed Description

In the flow diagram of the control method shown in fig. 1, a traffic intersection where a vehicle is located is determined according to a vehicle position, a driving path is calculated according to the vehicle position and a driving destination, and a driving direction of the vehicle at the intersection is determined through fusion of a navigation path and human-computer interaction, which specifically includes the following steps:

determining a driving destination according to driving information;

the driving information comprises historical statistical information of the driving track stored in a record mode, and the destination to which the vehicle arrives at the current position and the time period can be judged according to the recorded historical driving track. When the driving destination is judged through the history information, the user can be informed through the reminding information so as to be convenient for the user to confirm or change, for example, the user is informed of the destination through intelligent voice or the destination is displayed through a display screen.

The driving information also comprises driving destination information input by a user, and the user can input the destination information on the vehicle terminal through voice or characters. The user may input a new destination or correct the destination judged by the history information by the input destination information.

And when the vehicle position moves for a set time, if the user does not input the destination of the current driving, automatically judging the destination of the current driving according to the prestored destination information or historical driving track information.

Step (2) judging the current traffic intersection according to the position information, and calculating a driving path according to the position and the destination;

the position of the vehicle is located by the satellite and the path the vehicle can travel is calculated by a navigation algorithm based on the vehicle position and the destination. And setting the position range of the traffic intersection, and judging the traffic intersection where the vehicle is located according to the position of the vehicle and the position range of the traffic intersection.

Step (3) judging whether the driving direction passing through the current intersection is unique or not according to the driving path;

since urban roads are criss-cross, multiple navigation lines or paths can be generated by navigation algorithms, starting at the same location based on the same destination. Although the intelligent navigation can recommend a path with the shortest distance, the path with the fastest driving speed or the path with the shortest driving time through comparative analysis, the intelligent navigation cannot ensure that the user can follow the recommended path.

By judging the driving direction of the vehicle in advance at the position far away from the intersection area, the distance for acquiring the driving direction can be enlarged, and the monitoring range of the traffic intersection is extended to a longer road section.

If the driving direction is unique, determining the vehicle information of the direction according to the driving direction;

the method comprises the steps of judging a required vehicle in the direction of the intersection according to the running direction of the vehicle, determining vehicle information in different directions of the intersection according to the required vehicle, wherein the vehicle information comprises vehicle position, vehicle flow and saturation, and realizing accurate control over variable lanes at the intersection.

If the driving direction is not unique, reminding a user of selecting the driving direction passing through the current intersection through reminding information, and determining vehicle information of the direction according to the driving direction selected by the user;

the driving direction is not unique, the driving route obtained through the navigation algorithm exceeds two routes, the passing direction of the vehicle at the intersection is not unique, at least two different directions of left turning, straight going, right turning and left turning are generated, and the user is reminded to select one driving direction.

and the variable lane driving direction is controlled by comparing and analyzing the vehicle information of different driving directions at the intersection.

(7) Prompting the driving direction of the variable lane through a vehicle terminal;

the driving direction of the variable lane is prompted through the vehicle terminal, so that a driver can know the driving direction of the variable lane in advance without being limited by sight distance, and compared with a roadside electronic display screen, the driving direction of the variable lane is more convenient for the driver to check and is not influenced by the environment. The prompt comprises displaying the position and the driving direction of the variable lane through a display screen, or broadcasting the driving direction of the variable lane through an intelligent loudspeaker.

Further, when the driving direction of the variable lane is changed, a warning is sent out through the vehicle terminal, such as displaying a driving direction icon of the variable lane in a flashing mode through a display screen, changing the background color of the variable lane, or reporting the driving direction of the variable lane through sound.

The traffic control center or the cloud server comprehensively analyzes the vehicle information of each passing direction of the intersection, controls the driving direction of the variable lane of the intersection and sends the vehicle terminal through wireless communication.

According to the invention, through the fusion of intelligent navigation and human-computer interaction between the vehicle terminal and the user, before the vehicle passes through the traffic intersection, when the driving path judged by the navigation algorithm is unique, the navigation path is automatically taken as the driving direction passing through the intersection without manual participation, so that the intelligent experience is improved, when a plurality of driving paths judged by the navigation algorithm are generated, the vehicle terminal sends out reminding information, the driving direction of the vehicle passing through the intersection is selected based on the human-computer interaction between the vehicle and the user, and the problem of lagging judgment of the driving direction caused by the intelligent navigation can be avoided.

The intelligent navigation can be used for carrying out online navigation through the cloud server and can also be used for carrying out offline navigation through the vehicle terminal. In the following embodiments, cloud-end online navigation is taken as an example for description, and the traffic control center is integrated with the navigation server, and the vehicle terminal is wirelessly connected with the navigation server through wireless communication.

The vehicle terminal can be an independent terminal with human-computer interaction and communication functions, such as a smart phone, or a device on the vehicle, such as a central control unit with human-computer interaction and communication functions, or a special device with human-computer interaction and communication functions on the vehicle.

The reminding information is sent out through the vehicle terminal and comprises one or more of keyboard reminding information sent out through a driving direction physical keyboard, voice reminding information sent out through an intelligent loudspeaker, or screen reminding information sent out through a touch screen.

An embodiment of a physical keyboard is shown in fig. 2, and comprises three general direction input keys of 'straight line', 'left turn' and 'right turn', each key is provided with a red, green and yellow LED background light, a question mark prompting key and a buzzer matched with the LED light.

The reminding is the start of man-machine interaction between the vehicle terminal and the driver, the time and the rhythm of information interaction between the vehicle terminal and the driver are controlled through the reminding, on one hand, the driver is informed of entering or about to enter a monitoring range of the traffic intersection through the reminding, on the other hand, the driver is prompted to feed back the passing direction through the reminding, the habit that the driver develops to send the passing direction at the traffic intersection is developed, wherein the reminding content guides the information interaction direction, and the reminding content is a restriction control factor of the information interaction.

A simple reminding method is that when a vehicle enters a traffic intersection monitoring position range, a question mark key in a physical keyboard of a vehicle terminal is triggered to send acousto-optic flickering background reminding information to inquire a driver to select the passing direction of the current intersection; or triggering an intelligent loudspeaker of the vehicle terminal, and sending out a sound prompt of 'current intersection, please select passing direction'; or triggering a display screen of the vehicle terminal, displaying characters of 'intersection, left turn, right turn' and the like on one line of the display screen, and displaying icons of 'straight line, left turn, right turn' and the like on the next line of the display screen, and reminding the driver of selecting by sequentially and circularly flashing the icons. Of course, the reminding can be performed by the combination of various reminding modes.

Left turn turns may be included in left turn passes or listed as one way.

And after the reminding is sent, the vehicle terminal receives feedback information of the driver. The feedback information corresponds to the reminding information and comprises key information input by a driver through a physical key, voice information input through an intelligent microphone, or icon or character information input through a touch screen. For example, a driver can input key information by pressing three direction keys of 'straight line', or 'left turn', or 'right turn' on a physical keyboard, and the vehicle terminal judges a passing direction according to the input key information; or the driver inputs voice information such as 'straight going', or 'left turning', or 'right turning' through the microphone, and the vehicle terminal judges the passing direction through voice recognition; or the driver inputs the passing direction by clicking a 'straight line', or 'left turn', or 'right turn' icon on the touch screen.

Further improvement, in order to improve user experience, the reminding information can be controlled according to the associated information, so that the reminding content is more targeted, and a driver can reply and feed back by inputting a new message according to the reminding content or reply and feed back by defaulting the reminding message.

The associated information comprises vehicle running information, the running direction is judged according to the vehicle running information, and the reminding content is controlled according to the judgment result.

The vehicle running information comprises historical passing direction in the current intersection direction, the passing direction of the vehicle under the maximum probability can be analyzed and judged according to the recorded passing data of the vehicle in the current intersection direction, and then a prompt is sent out so that a driver can confirm or change the passing direction. For example, the probability of straight-going passing is judged to be the maximum, the voice reminds the intersection to pass through, the driver can answer yes or answer straight-going by voice, the vehicle terminal sends out straight-going passing through voice to confirm and uploads straight-going information through wireless communication, if the driver answers left turn, the passing direction is changed, the vehicle terminal sends out left turn through voice to confirm and uploads left turn information through wireless communication. The driver can also default to go straight without answering, after a set reply time period, such as 3-5 seconds, the driver does not reply, the vehicle terminal sends out 'straight going through' through sound to confirm, and uploads 'straight going' information through wireless communication. If information interaction is carried out with a driver through the touch display screen, three icons of 'left turn, straight line and right turn' can be displayed on the touch screen in one row, the icon of 'straight line' is displayed in the next row, the icon of 'straight line' is displayed in a flashing mode or the passing direction with buzzer reminding judgment is displayed in a flashing mode, the driver can not reply, after the set time period, the touch screen magnifies and flashes the icon of 'straight line' according to the default information of the driver to confirm, the information of 'straight line' is uploaded through wireless communication, when the driver clicks the icon of left turn to indicate the intention of left turn, the touch screen magnifies and flashes the icon of 'left turn' or with buzzer to confirm, and the information of 'left turn' is uploaded through wireless communication. If information interaction is carried out through the physical keys, the straight keys in the physical keyboard can be controlled to carry out acousto-optic background prompt, a driver can default to go straight without replying, after 3-5 seconds, the physical keyboard confirms through acousto-optic background information sent by the straight keys and uploads the straight information, and the driver can also reply by pressing the straight keys; if the driver presses the 'left turn' key to indicate the intention of left turn, the physical keyboard turns to confirm through the acousto-optic background information sent by the 'left turn' key, and the 'left turn' information is uploaded.

Obviously, the driver can default or change the passing direction of the reminding, or can default and change the reminding first, and the vehicle terminal takes the last reply as the standard. The default is the simplest and most convenient information reply or feedback mode, the purpose of controlling the reminding content through the associated information is to facilitate the driver to reply and confirm through the default, the stronger the pertinence of the reminding is, the higher the user experience is, the judgment of the passing direction is not limited, and the control level based on the passable road of the intersection scene and the adjacent intersection can be included.

The related information comprises the passing direction of the optimal path based on the navigation algorithm, such as the driving direction of the shortest distance path, the driving direction of the fastest speed path, the driving direction of the shortest time path and the like, and the optimal driving direction is selected as the reminding content to perform information interaction with the driver.

It should be noted that the method of the present invention is different from the intelligent navigation, the intelligent navigation only needs the user to input the destination at the beginning, and the vehicle path planning is performed according to the vehicle position and the map information, the following vehicle driving process does not receive the feedback information of the driver, if there are multiple paths at the intersection, or the user does not walk the recommended path, or when the user changes the navigation path, the navigation system only judges the actual passing direction according to the position track of the vehicle, that is, the new passing direction of the vehicle is obtained after the vehicle passes the traffic intersection. The invention judges the passing direction according to the position and direction of the destination and the traffic intersection, but the passing direction estimated by the destination is only used as the content of the reminding, the invention aims to remind and guide the reply of the driver, but not directly used as the passing direction, and the finally determined passing direction is obtained by the information interaction with the driver, and can be the same as the estimated direction or different from the estimated direction. Whether or not the driver selects the presumed direction, the determination of the passing direction must be before the vehicle passes through the traffic intersection, rather than after the passing. The passing direction of the intelligent navigation is planned by the machine equipment according to the position of the vehicle, and has certain application limitation.

The related information also comprises time information, firstly, the historical passing direction of the vehicle at the current traffic intersection is recorded and counted according to time interval division, and the corresponding passing direction is estimated according to different time, for example, the passing direction of some vehicles in the time interval of working on duty and the time interval of working off duty is usually unchanged, and the passing direction of the vehicle in the direction of the current traffic intersection can be judged according to the historical path information of the time of working on duty or working off duty.

The related information includes lane position information where the vehicle is located. The road position of the vehicle at the current intersection can be detected through a wireless positioning technology, the road position comprises a straight road, a left turn road, a right turn road, a straight + left turn road, a straight + right turn road and the like, and the passing direction at the current traffic intersection is presumed according to the guidance of a lane. If the vehicle is on the straight road, the straight direction is selected as the passing direction for reminding, the final passing direction is determined according to the feedback information of the driver, and if the vehicle is on the combined road of straight and left turn, the driver can select one by blinking two unidirectional icons or keys of straight and left turn for reminding.

The associated information comprises vehicle types, and the vehicle types comprise public transport vehicles, taxi operation vehicles or private cars. For different types of vehicles, the judgment results of the driving direction at a traffic intersection are different, for example, for a public transport vehicle, although different navigation calculation driving directions exist, the historical driving track is generally fixed and unchanged, when the vehicle enters the position range of the traffic intersection, the vehicle can directly send out reminding information according to the recorded driving direction, a driver replies through default, and as the driving direction is always unchanged, the reminding can be omitted, and the information interaction with the driver is omitted. For a taxi, the driving path of the taxi is changed infrequently and irregular, the driving direction of the current intersection cannot be judged according to the historical records, and the driving direction can be judged according to the calculated driving path and the optimal path based on time, distance or speed. For example, when the taxi cab enters the traffic intersection monitoring range, the taxi cab can send out the reminding of 'intersection, straight-through' through sound or pictures and texts, and then the current driving direction is determined according to the reply information of the driver. For private cars, the driving direction of the intersection is usually unchanged in the working time period, and the driving direction at the current intersection can be judged according to the history.

The reminding content is controlled to guide and facilitate the reply of the driver, and the principle of controlling the reminding content is to judge the passing direction at the current intersection based on the historical information or the navigation information and remind the driver according to the judged passing direction, so that the driver can reply by default or change.

Further, the vehicle terminal uploads vehicle identification information to the cloud-end controller. The vehicle identification information comprises one or more of a license plate number, or a vehicle body size, a vehicle body color, or a vehicle type, or a vehicle model. Through the license plate number, traffic control center can discernment track vehicle, carries out radio communication with this vehicle at any time, can calculate the length that every vehicle took up a road through the automobile body size, and accurate statistics motorcade length that blocks up can combine with video monitoring through automobile body colour, vehicle type, vehicle model etc. realizes multi-angle monitoring.

Further, the vehicle terminal also uploads the traveling information of the vehicle to the cloud server at the same time, the traveling information comprises the position, the speed, the traveling distance and the like of the vehicle, and the traffic condition of the current traffic intersection can be judged and analyzed according to the combination of the passing direction and the traveling information. For example, the running distance of the vehicle in the intersection monitoring range is calculated through the speed and the time, the length or the front-back sequence of the queued vehicles can be judged, and the longer the running distance in the monitoring range is, the shorter the current vehicle is queued in the queue or the farther the current vehicle is in the front, and the longer the current vehicle is queued in the queue or the farther the current vehicle is in the back, or the longer the current vehicle is queued in. The variable lane can be further controlled by the vehicle queue length and the vehicle information in a certain driving direction.

Further, the vehicle terminal displays the lane information of the current intersection, including lane arrangement and driving direction, and displays the position of the vehicle at the current intersection according to the position coordinates of the vehicle. And displaying the position change process or lane change process of the current vehicle on the lane of the current intersection in the form of images.

If the vehicle is just opposite to the variable lane, but the running direction of the vehicle passing through the intersection is different from that of the variable lane, the lane change reminding is sent out through the vehicle terminal when the vehicle reaches the set distance with the variable lane according to the position or the running speed of the vehicle. For example, the driver may turn the lane by making a "please change the lane" sound through a speaker, or by flashing a lane-changeable driving direction icon and prompting the driver to pay attention to the direction of the lane-changeable with a buzzer.

Furthermore, the invention also detects the vehicle leaving the monitoring position range of the traffic intersection, and when the position coordinates of the vehicle move out of the monitoring range or the vehicle crosses another boundary of the monitoring area of the traffic intersection, the vehicle is judged to leave the monitoring range of the current traffic intersection and enter the position range of the next traffic intersection, which is opposite to the detection method for entering the monitoring range of the intersection.

When the vehicle leaves the monitoring range of the current traffic intersection, the cloud end controller judges the running direction of the vehicle at the next intersection, if multiple paths exist, the vehicle terminal is triggered to send out reminding information, information interaction is carried out with a driver, and the passing direction of the vehicle at the next adjacent intersection is obtained. By detecting the distance from the current intersection monitoring range, the passing direction of the vehicle at the next intersection can be obtained in advance, the monitoring range of the next intersection is enlarged, and the monitoring of the next intersection can obtain longer road section information.

A smartphone-based embodiment. The intelligent mobile phone is used as a vehicle terminal, the intelligent mobile phone is connected and communicated with the cloud server through a wireless network, and the cloud server controls the road junction to change the driving direction of the lane through wireless communication.

Firstly, an APP is installed in a mobile phone, a driver finishes registration through the APP, for example, the type of a vehicle, the number of a license plate, the color of a vehicle body, the type of the vehicle and the like are input, one vehicle can be registered by a plurality of mobile phones, and one mobile phone can also register a plurality of vehicles. Through registering vehicle information, can establish the relevance of cell-phone and vehicle, realize vehicle safety monitoring, for example, if found the vehicle trace through other detection means such as camera, or electronic license plate, and the cell-phone APP of registering does not upload relevant route information simultaneously, can judge that this vehicle is stolen, in time sends alarm information to registering the cell-phone.

According to the registered vehicle type, the priority passing authority of special vehicles such as buses, ambulances, police cars and the like in the passing direction of the uploading request can be granted.

Obviously, vehicle information registration is not required in the mobile phone APP, one mobile phone APP can be used on any vehicle, the server corresponds to one virtual vehicle through mobile phone identification information, the vehicle can be used by others for public use, but the mobile phone is usually special for the user, so that the traffic information based on mobile phone record statistics has pertinence to the reminding control of information interaction, and the special path characteristics of the user can be reflected.

When a driver opens the APP, the position of the vehicle is obtained through the mobile phone satellite positioning system and uploaded to the server, the user can input a destination through the mobile phone to upload, the cloud server can also judge the destination according to the recorded information and inform the user, and the user can confirm or change the destination. The cloud server plans a driving path based on a navigation algorithm according to the position and the destination of the vehicle.

The server predicts the time or the suggested speed of the vehicle passing through the next intersection in the straight-through direction by combining historical statistical data according to the position and the speed of the vehicle, sends the time or the suggested speed to the mobile phone APP, and sends out a prompt through voice or a display screen.

The mobile phone becomes indispensable portable equipment in daily life of people, and the mobile phone is still needed to accompany even in the driving process. The connection between the vehicle and the urban traffic control system is established through the mobile phone APP, and the driver can participate in the urban traffic control only by clicking the mobile phone APP once, so that the driver can reach the mobile phone APP. For the traffic control participants, the traffic control center can know the passing direction of the traffic control participants, so that the direction requirements of the traffic control participants are considered, the traffic control center brings convenience to the participants, the time and the energy consumption are saved, and the enthusiasm of the drivers is aroused. The method has the advantages that manual feedback of a driver is obtained, detection of vehicle hardware is replaced, and the limitation of single method dependence on vehicle equipment detection is changed.

For an urban traffic manager, the intelligent mobile phone of a driver and the signal lamp of the traffic intersection are connected through the cloud server to define the coordinate position range of the traffic intersection on an urban traffic map, and the system is simple and easy to construct and low in cost. The method can realize the fine control of the variable lane based on the passing direction of the vehicle, greatly breaks through the video monitoring range of the current intersection by extending the monitoring range of the traffic intersection to the previous adjacent intersection, can timely find or avoid the jam of the whole road, and improves the traffic efficiency.

The vehicle unit acquires a vehicle driving destination through the acquisition module, detects position coordinates of the vehicle through the detection module, and sends the position coordinates to the traffic control unit through the wireless communication module. The traffic control unit calculates a driving path through the path module according to the vehicle position information and the destination; judging the current traffic intersection through a judging module according to the vehicle position information, and judging whether the driving direction passing through the current intersection is unique or not according to the driving path; if the driving direction is unique, the traffic control unit determines the vehicle information of the direction according to the calculated driving direction; if the driving direction is not unique, the traffic control unit is connected with the vehicle unit through the wireless communication module, the reminding device of the vehicle information interaction module sends out reminding information to remind a user of selecting the driving direction passing through the current intersection, the feedback device of the vehicle information interaction module receives the driving direction selected by the user, the vehicle information of the direction is determined according to the driving direction selected by the user, the driving direction of the variable lane is controlled through the control module, the traffic control unit feeds the driving direction information of the variable lane back to the vehicle unit, and the reminding module prompts the driving direction of the variable lane.

The acquisition module comprises one or more of an intelligent microphone, a touch screen and a memory, the intelligent microphone is used for acquiring the voice information of the driving destination of the user, the touch screen is used for acquiring the information of the driving destination input by the user, and the memory is used for recording the stored historical track information so as to judge the driving destination of the vehicle. The trajectory information may be stored in a storage module of the traffic control unit, and the traffic control unit may determine the vehicle travel destination.

The detection module is used for detecting the position coordinates of the vehicle through a vehicle satellite positioning device or WiFi information by a wireless positioning device, such as the vehicle satellite positioning device or the WiFi module.

The information interaction module comprises a reminding device and a feedback device, reminding information is sent out through the reminding device, and feedback information of a user is received through the feedback device. Wherein the reminding device comprises one or more of a physical keyboard, a loudspeaker or a display screen. The reminding information comprises key information displayed through a physical key with an acousto-optic background, or image-text information displayed through a display screen, or voice information sent through a loudspeaker. The feedback device comprises one or more of a physical keyboard, an intelligent microphone and a touch screen. The feedback information comprises key information input by a driver through physical keys, or voice information input through an intelligent microphone, or icon or character information input through a touch screen.

The prompting module comprises a display screen, the position and the driving direction of the variable lane are displayed through the display screen, the prompting module comprises an intelligent loudspeaker, and the driving direction of the variable lane is reported through the intelligent loudspeaker.

The traffic control unit includes: the route module is used for calculating and generating running route information based on a navigation algorithm according to the vehicle position information and the destination; the judging module is used for judging the current traffic intersection according to the vehicle position information, judging the driving direction passing through the current intersection according to the path information, and judging the vehicle information of the direction according to the driving direction, wherein the vehicle information comprises the vehicle flow, the saturation and the like; the control module is used for controlling the driving direction of the variable lane; the communication module is used for wireless communication between the traffic control unit and the vehicle unit; and the storage module is used for storing vehicle information, such as vehicle identification information and track information.

The vehicle unit and the traffic control unit are in wireless communication through the wireless communication module. The wireless communication comprises wireless network communication, such as a 3G \4G \5G network; or local area network communication, such as WiFi; or short-range wireless communication such as bluetooth, infrared, RFID; or the internet of things.

The invention takes the navigation path as a main line, controls the driving direction of the variable lane according to the driving direction judged by navigation when the driving direction of the vehicle passing through the current intersection is unique, and controls the driving direction of the variable lane according to the driving direction selected by a user when the driving direction of the vehicle passing through the current intersection is not unique. When the scene is simple, the control is carried out through a machine algorithm, when the scene is complex, manual intervention is used, and the machine and the manual work are combined to make up each other, so that the system is stable and reliable, and the method is simple and low in cost.

The driving direction of the variable lane is prompted through the vehicle terminal, so that a driver can conveniently acquire direction information of the variable lane in time, the vehicle is not limited by position and sight distance, the vehicle is not influenced by environment, and the phenomena of wrong road walking and wrong road selecting are avoided.

Claims

1. A variable lane control method based on a driving direction, characterized by comprising the steps of:

(1) determining a driving destination according to the driving information;

2. The control method according to claim 1, wherein: the travel information includes historical statistical information of a travel trajectory or travel destination information input by a user.

3. The control method according to claim 2, wherein: and informing the user of the driving purpose determined according to the historical statistical information through the reminding information.

4. The control method according to claim 1, wherein: the method comprises the step of controlling the content of the reminding information according to the associated information.

5. The control method according to claim 4, wherein: the associated information includes information according to one or more of driving information, route information, time information, lane information, and vehicle type.

6. The control method according to claim 1 or 4, wherein: the driving direction selected by the user comprises the driving direction input by the user through the terminal or the driving direction in the reminding information defaulted by the user.

7. The control method according to claim 1, wherein: the method comprises the steps of displaying a lane and a driving direction of a current intersection through a vehicle terminal, and displaying the lane where a vehicle is located according to vehicle position coordinates.

8. The control method according to claim 1, wherein: the method comprises the steps that the position and the driving direction of a variable lane are displayed through a vehicle display terminal, and when the driving direction of the variable lane is changed, a prompt is sent through the vehicle terminal.

9. The control method according to claim 1, 7 or 8, wherein: if the vehicle is just opposite to the variable lane, but the driving direction of the vehicle passing through the intersection is different from the driving direction of the variable lane, the lane change reminding is sent out through the vehicle terminal.

10. A driving direction-based variable lane control system comprising a vehicle unit, a traffic control unit, and a signal lamp, wherein the vehicle unit includes:

the acquisition module is used for acquiring a destination where the vehicle runs;

the detection module is used for detecting vehicle position information;

the information interaction module is used for information interaction between the vehicle terminal and a user;

the communication module is used for wireless communication between the vehicle unit and the traffic control unit;

the prompting module is used for prompting the driving direction of the variable lane;

the traffic control unit includes:

the route module is used for generating driving route information according to the vehicle position information and the destination;

the storage module is used for storing the vehicle information;

the judging module is used for judging the current traffic intersection according to the vehicle position information and judging the driving direction passing through the current intersection according to the path information;

the control module is used for controlling the driving direction of the variable lane;

the communication module is used for wireless communication between the traffic control unit and the vehicle unit;

the method is characterized in that:

if the driving direction of the vehicle at the current intersection is unique, the traffic control unit determines the vehicle information of the direction according to the driving direction of the vehicle;

if the driving direction of the vehicle at the current intersection is not unique, the traffic control unit triggers an information interaction module of the vehicle unit to remind a user to select the driving direction passing through the current intersection, then determines the vehicle information of the direction according to the vehicle driving direction selected by the user, and controls the variable driving direction of the intersection according to the vehicle information of each driving direction;

and prompting the driving direction of the variable lane through a prompting module.