CN112669624B - Traffic intersection signal control method and system based on intelligent navigation - Google Patents
Traffic intersection signal control method and system based on intelligent navigation Download PDFInfo
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Abstract
The invention provides a traffic intersection control method and system based on a driving direction, wherein 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 of the current intersection is unique, the driving direction is used as demand data for controlling intersection signal lamps, if the driving direction of the current intersection is not unique, a user is reminded to select the driving direction through human-computer interaction of a vehicle terminal and the user, and then the selection of the user is used as the demand data for controlling the intersection signal lamps. According to the invention, the driving direction of the vehicle is judged through the fusion of intelligent navigation and human-computer interaction, and the accurate control of the signal lamp is realized.
Description
Technical Field
The invention relates to a traffic intersection signal control method and system based on intelligent navigation.
Background
The current control method of the intelligent traffic signal lamp is based on traffic flow detection carried out in the intersection direction, such as an intelligent camera, an induction coil, a radar, ultrasonic and other fixed point detection devices, or a vehicle-mounted mobile detection device through wireless positioning, and is used for detecting the whole traffic flow in a certain intersection direction, but cannot specifically detect the traffic flow in different driving directions.
The traffic control method and the navigation system with application number 201911004374X extract traffic demand information of a traffic intersection by using vehicle positions in navigation data to control signal lamps, are still based on intersection directions, and do not refer to driving directions. In addition, the intelligent navigation can estimate the driving direction of the vehicle at the traffic intersection through matching of the running track and the 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 position change of the vehicle, that is, the navigation system can only judge the driving direction according to the running track of the vehicle, that is, the driving direction of the vehicle is obtained after the vehicle passes through the traffic intersection, so that the driving direction judgment is delayed.
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.
The existing intelligent traffic control method is based on vehicle detection in the large direction of the intersection, the traffic flow in each driving direction cannot be specifically identified, and the control of an intelligent signal lamp cannot be specifically carried out in different driving directions, for example, a left turn green lamp is still turned on when no vehicle turns left, so that the phenomenon of idle discharge of the left turn green lamp occurs, the waste of the left turn green lamp is caused, and the passing of vehicles in other directions is limited.
Disclosure of Invention
The invention aims to provide a traffic intersection signal control method and system based on intelligent navigation, which realize accurate control of traffic signals based on intelligent navigation, avoid waste of green light time and improve intersection traffic efficiency.
The embodiment of the invention provides a traffic intersection signal control method based on intelligent navigation, 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 judging a driving path through a navigation algorithm 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, controlling the traffic signal of the intersection 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 the reminding information, and controlling the traffic signal of the intersection according to the driving direction selected by the user so as to avoid the delay of the intelligent navigation in judging the driving direction.
Based on the same conception, the invention also provides a traffic intersection signal control system based on intelligent navigation, which comprises a vehicle unit, a traffic control unit and a signal lamp, wherein the vehicle unit comprises: 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 traffic control unit includes: the route module is used for generating drivable route information through 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 and judging the driving direction passing through the current intersection according to the path information; the control module is used for controlling the phase period of signal lamps at the intersection; the storage module is used for storing the vehicle information; the method is characterized in that: if the driving direction of the vehicle at the current intersection is unique, the traffic control unit controls the traffic signal of the intersection 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 of selecting the driving direction passing through the current intersection, and then controls a traffic signal of the intersection according to the driving direction of the vehicle selected by the user so as to avoid the situation that the intelligent navigation judges the driving direction in a lagging mode.
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 demand data for controlling intersection signal lamps, 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 demand data for controlling the intersection signal lamps, and the accurate control of the signal lamps at the intersection is realized according to the running direction of the vehicle. According to the invention, through the fusion 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 at 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, so that the distance for acquiring the driving direction can be increased, the monitoring range of the traffic intersection is extended to a longer road section, the vehicle can reserve the driving direction to the intersection signal lamp in advance, the traffic control effect is better, and the traffic efficiency is higher. When the crossing driving direction cannot be automatically judged, the vehicle driving direction is judged based on the selection information of the user, and compared with the judgment of the detection information through a sensor, the judgment is more direct, simple and clear, the result is more reliable, and the influence of the environment is avoided.
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.
Judging the current traffic intersection according to the position information, and judging a driving path through a navigation algorithm 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 route with the shortest distance, the fastest driving speed or the shortest driving time through comparative analysis, it cannot be ensured that the user can follow the recommended route.
If the driving direction is unique, controlling the traffic signal of the intersection 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 the traffic flow and the saturation in different directions of the intersection according to the required vehicle, and realizing the accurate control of the traffic signal of the intersection.
And (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 controlling the traffic signal of the intersection according to the driving direction selected by the user.
The traffic control center or the cloud server comprehensively analyzes and contrasts the traffic flow of each driving direction in different intersection directions, and controls intersection traffic signals, such as controlling the color cycle of signal lamps or controlling the display of a road traffic condition display screen.
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 online navigation is taken as an example for explanation, 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 a traffic intersection through the reminding, on the other hand, the driver is prompted to feed back the driving direction through the reminding, and the habit that the driver develops to send the driving direction at the traffic intersection is cultivated, wherein the reminding content guides the information interaction direction and 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 driving direction of the current intersection; or triggering an intelligent loudspeaker of the vehicle terminal to send out a sound prompt of 'current intersection, please select the driving 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 out, 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 going', or 'left turning', or 'right turning' on a physical keyboard, and the vehicle terminal judges the driving 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 driving direction through voice recognition; or the driver inputs the driving direction by clicking the icon of 'straight line', or 'left turn', or 'right turn' 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 running direction in the current intersection direction, and the running direction of the vehicle under the maximum probability can be analyzed and judged according to the recorded traffic 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 vehicle. For example, the probability of straight-going passing is judged to be maximum, the 'intersection' is reminded by voice, the driver can answer 'yes' or answer 'straight-going', the vehicle terminal sends 'straight-going passing' by voice to confirm and uploads 'straight-going' information through wireless communication, if the driver answers 'left turn', the driving direction needs to be changed, the vehicle terminal sends 'left turn passing' by 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 ' straight line ' icon or the driving direction with buzzer reminding judgment is displayed in the next row in a flashing mode, the driver can not reply, after a set time period, the touch screen magnifies and flashes the ' straight line ' icon to confirm according to the default information of the driver, the ' straight line ' information is uploaded through wireless communication, and when the driver clicks the left turn icon to indicate the intention of left turn, the touch screen magnifies and flashes the ' left turn ' icon or the ' buzzer accompanying the information to confirm, and the ' left turn ' information 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 driving direction of the reminding, or can default and change the driving direction 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 reminding pertinence is, the higher the user experience is, the judgment of the driving 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 associated information includes a navigation travel path. If the driver has previously input a destination through a smart microphone or a touch screen, etc., a vehicle traveling direction can be calculated based on a navigation algorithm according to the destination and the current position. When multiple paths occur, the driving direction of the optimal path is selected to perform information interaction with the driver, such as the path with the shortest time, the path with the shortest distance, or the path with the highest driving speed.
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 driving direction according to the position track of the vehicle, that is, the new driving direction of the vehicle is obtained after the vehicle passes the traffic intersection. The invention judges the driving direction according to the position and direction of the destination and the traffic intersection, but the driving direction estimated by the destination is only used as the content of the reminding, the purpose is to remind and guide the reply of the driver, but not directly as the driving direction, and the finally determined driving 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, it is determined that the traveling direction must be before the vehicle passes through the traffic intersection, not after the passage. The driving 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 driving direction of the vehicle at the current traffic intersection is recorded and counted according to time interval division, and the corresponding driving direction is estimated according to different time, for example, the driving direction of some vehicles in the working time interval and the working time interval is usually unchanged, and the driving direction of the vehicle in the current traffic intersection direction can be judged according to the historical path information of the working time or the working time.
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 driving 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 driving direction for reminding, the final driving direction is determined according to the feedback information of the driver, and if the vehicle is on the combined road of straight driving and left turning, the driver can select one of the two icons or keys in one direction by flashing the straight icon and the left turning icon.
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 bus, although different calculated driving directions exist, the historical driving track is generally fixed and unchanged, when the bus enters the position range of the traffic intersection, the driver can directly send out reminding information according to the recorded driving direction, and the driver replies through default, so that 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 is judged according to the driving path calculated by navigation and the optimal path based on time, distance or speed, so that information exchange is carried out with a driver. For example, when the taxi cab enters the position range of the traffic intersection, if the driving direction judged according to the optimal navigation path is straight, the reminding of 'intersection, straight passing' can be sent out 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, the principle of controlling the reminding content is to judge the driving direction at the current intersection based on the historical information or the navigation information and remind the driver according to the judged driving 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, the traffic control center can discern and track the vehicle, carries out radio communication with this vehicle at any time, can calculate the length that every vehicle took up the 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 the multi-angle control.
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 traveling 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 front or the longer the current vehicle is in the back.
And further, displaying the lane information of the current intersection through the vehicle terminal, and displaying the position of the vehicle at the current intersection according to the position coordinates of the vehicle. And displaying the position change process of the current vehicle on the lane of the current intersection in the form of images.
In addition, the traffic condition of the current traffic intersection can be judged by comprehensively analyzing the vehicle running direction and the running information, the time of the vehicle passing the next intersection in the running direction is predicted according to the running information such as the position, the speed and the like of the vehicle, or the suggested speed of the vehicle passing the next traffic intersection is transmitted to the vehicle terminal through wireless communication, and the reminding device is used for reminding the driver.
For a combined lane with left-turn and straight-going or straight-going and right-turn, the queuing conditions of vehicles in different driving directions on the combined lane can be accurately judged through the combination of the vehicle positions and the driving directions, so that each driving direction can be accurately controlled, if the left-turn vehicles are more and are close to the front, the left-turn green light can be turned on, after the left-turn vehicles pass through, the left-turn green light is turned off, the straight-going green light is turned on, if the straight-going vehicles are more and are close to the front, the straight-going green light can be turned on, and after the straight-going vehicles pass through, the left-turn green light is turned on.
The traffic condition of the intersection can be estimated according to the vehicle running speed in the traffic intersection monitoring range, and if the vehicle running speed is low, the traffic in the running direction is not smooth. For example, for a straight-driving and right-turning combined lane, when the vehicle is running straight in red and turns right in yellow, if the speed or distance of the vehicle in the right-turning driving direction is zero, it can be determined that the straight-driving vehicle blocks the right-turning vehicle, and the cause of congestion can be further analyzed.
The cloud server judges the traffic flow or saturation of the vehicle in the direction according to the required vehicle in the driving direction, controls intersection signal lamps by comprehensively comparing the traffic flow in different driving directions at each intersection, and displays signal lamp information of the current intersection direction through the vehicle terminal, such as a direct red light, a left-turning red light and a right-turning yellow light at the current intersection direction, and background lights of three keys of 'direct running', 'left-turning', 'right-turning' on physical keys are respectively red, red and yellow, or icons of 'direct running', 'left-turning', 'right-turning' are respectively displayed in red, red and yellow on a touch screen. When the color cycle of the signal lamp in the vehicle running direction is changed from red to green, a prompt is sent through the vehicle terminal so that a driver can start the vehicle in time and delay is avoided. For example, when the ' straight-going ' signal lamp is changed from red to green, the vehicle terminal which passes through the straight-going signal lamp sends out a lamp changing prompt, for example, a background lamp of the ' straight-going ' key on the physical key is changed into green and flickers with buzzing sound, or the color of a ' straight-going ' icon on the touch screen is changed into green and flickers in an amplified manner with buzzing sound, or the intelligent sound box sends out a ' straight-going green lamp ' and asks for voice prompt of passing through ', but for left-turning and right-turning vehicles, the color display of the current signal lamp is only updated, the prompt function of the vehicle terminal is not triggered, and the prompt interference is avoided.
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 running direction of the vehicle at the next adjacent intersection is obtained. By detecting the distance from the current intersection monitoring range, the driving 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 intersection traffic signals 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 driving 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.
When a vehicle enters a position range of a traffic intersection, the server judges whether the driving direction passing through the current intersection is unique or not according to the driving path, and if the driving direction is unique, the server controls the traffic signal of the intersection according to the driving direction; if the driving direction is not unique, the mobile phone is triggered to carry out information interaction with a driver, the user is reminded to select the driving direction passing through the current intersection through reminding information, and the traffic signal of the intersection is controlled according to the driving direction selected by the user.
The server predicts the time or the suggested speed of the vehicle passing through the next intersection in the straight-ahead driving 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 server dynamically controls the color cycle of the signal lamps of the traffic intersections or the road condition display screen by comparing the traffic flow or the saturation of each driving direction in the monitoring range in each intersection direction, for example, the congestion index or the passing time of each driving direction is displayed on the road condition 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 traffic control participants, the traffic control participants can know the driving direction of the traffic control participants through the signal lights at the intersection, so that the traffic control participants can conveniently pass through the traffic control system by considering the direction requirements of the traffic control participants, the time and the energy consumption are saved, and the enthusiasm of 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 traffic intersection video monitoring system has the advantages that the traffic intersection can be finely controlled based on the driving direction of vehicles, waste of green lights is avoided, the monitoring range of the traffic intersection is extended to the adjacent intersection, the video monitoring range of the current intersection is greatly broken through, congestion of the whole road can be timely found or avoided, traffic efficiency is improved, and green wave passing is realized.
A schematic view of a structural framework of another embodiment of the present invention is shown in fig. 3, and includes 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; and the communication module is used for the wireless communication between the vehicle unit and the traffic control unit.
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 or destination information so as to judge the driving destination of the vehicle. The trajectory information or the destination information may be stored in the storage module of the traffic control means, and the vehicle travel destination may be determined from the historical trajectory in the traffic control means.
The detection module comprises a vehicle satellite positioning device, and the position coordinates of the vehicle are detected through the vehicle satellite positioning device.
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 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 and judging the driving direction passing through the current intersection according to the path information; the control module is used for controlling the phase period of signal lamps at the intersection; 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, track information and destination 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 the internet of things.
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 controls the traffic signal of the intersection according to the navigation 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 to select 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, and the traffic signal of the intersection is controlled according to the driving direction selected by the user.
The invention takes the navigation path as a main line, controls the traffic lights of the intersection according to the navigation judged driving direction when the vehicle only passes through the current intersection, and controls the traffic lights of the intersection according to the driving direction selected by the user when the vehicle not only passes through the current intersection. 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.
Claims (10)
1. A traffic intersection signal control method based on intelligent navigation is characterized by comprising the following steps:
(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 through a navigation algorithm 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, judging the required vehicles in the direction of the intersection according to the driving direction of the vehicles, determining the traffic flow in different directions of the intersection according to the required vehicles, and controlling the traffic signals of the intersection;
(5) if the driving direction is not unique, reminding a user to select the driving direction passing through the current intersection through reminding information, analyzing and comparing the traffic flow of the driving direction in different intersection directions according to the driving direction selected by the user, and controlling the traffic signal of the intersection so as to avoid the delay of the intelligent navigation in judging the driving direction.
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 destination 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 user selection comprises a driving direction input by the user through the terminal or a default direction of the reminding direction input by the user.
7. The control method according to claim 1, wherein: and predicting the passing time of the vehicle in the driving direction of the intersection or the suggested passing speed according to the position and the speed of the vehicle, and sending a prompt to a user through a vehicle terminal.
8. The control method according to claim 1, wherein: the method comprises the steps that a signal lamp period of a current intersection is displayed through a vehicle terminal, and when a signal lamp in the driving direction is changed from red to green, a prompt is sent through the vehicle terminal.
9. The control method according to claim 1, wherein: the method grants the priority passing permission of special vehicles of buses, ambulances and police cars in the driving direction of the uploading request.
10. The utility model provides a traffic crossing signal control system based on intelligent navigation, includes vehicle unit, traffic control unit and signal lamp, wherein, 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 traffic control unit includes:
the route module is used for generating the route information of the vehicle running through a navigation algorithm 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 phase period of signal lamps at the intersection;
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 vehicle has a unique running direction at the current intersection, the traffic control unit judges the required vehicle in the direction of the intersection according to the running direction of the vehicle, determines the traffic flow in different directions of the intersection according to the required vehicle and controls the traffic signal of the intersection;
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, and then the traffic flow of the driving directions in different intersection directions is analyzed and compared according to the driving direction of the vehicle selected by the user to control the traffic signal of the intersection so as to avoid the situation that the intelligent navigation judges the driving direction late.
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| CN114093169A (en) * | 2021-11-22 | 2022-02-25 | 安徽达尔智能控制系统股份有限公司 | Vehicle-road cooperation method and system of road side sensing equipment based on V2X |
| CN114512020B (en) * | 2021-12-30 | 2023-06-27 | 浙江创泰科技有限公司 | Multi-screen control management system for urban parking |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5938720A (en) * | 1995-02-09 | 1999-08-17 | Visteon Technologies, Llc | Route generation in a vehicle navigation system |
| CN201465297U (en) * | 2009-04-28 | 2010-05-12 | 重庆市易博数字技术有限公司 | Device for controlling traffic signal lamp by vehicle location |
| CN102080964A (en) * | 2009-12-01 | 2011-06-01 | 汤贻芸 | Intelligent navigation method and system for automatically determining navigation destination address |
| CN102117546A (en) * | 2011-03-10 | 2011-07-06 | 上海交通大学 | On-vehicle traffic light assisting device |
| CN204537461U (en) * | 2015-04-23 | 2015-08-05 | 南京信息工程大学 | A kind of traffic lights prompting instrument |
| CN105352519A (en) * | 2014-08-22 | 2016-02-24 | 环达电脑(上海)有限公司 | Short-path fuzzy navigation method |
| CN105608910A (en) * | 2014-11-21 | 2016-05-25 | 中兴通讯股份有限公司 | Method, device and system for controlling traffic lights to change |
| CN105674999A (en) * | 2016-01-15 | 2016-06-15 | 武汉光庭信息技术股份有限公司 | Personal driving database based system and method for predicting driving direction at intersection |
| CN107464437A (en) * | 2017-07-28 | 2017-12-12 | 武汉依迅北斗空间技术有限公司 | The route selection system and routing resource of a kind of slag-soil truck |
| CN108665719A (en) * | 2017-03-28 | 2018-10-16 | 比亚迪股份有限公司 | Traffic lights based reminding method, device and vehicle |
| CN109003448A (en) * | 2018-08-02 | 2018-12-14 | 北京图森未来科技有限公司 | A kind of air navigation aid of intersection, equipment and system |
| CN110047308A (en) * | 2019-03-04 | 2019-07-23 | 武汉理工大学 | Traffic light signals and cab signal integration receive-transmit system and its control method |
| CN110276964A (en) * | 2019-05-27 | 2019-09-24 | 八维通科技有限公司 | A method of intelligence adjusts the traffic lights time |
| CN110807937A (en) * | 2019-11-09 | 2020-02-18 | 连云港杰瑞电子有限公司 | Special service task linkage command system and method |
| CN111060120A (en) * | 2018-10-17 | 2020-04-24 | 上海博泰悦臻网络技术服务有限公司 | Navigation method, navigation device and vehicle |
| CN111382217A (en) * | 2018-12-29 | 2020-07-07 | 北京奇虎科技有限公司 | Destination recommendation method and device |
| CN111583689A (en) * | 2020-04-21 | 2020-08-25 | 广东振业优控科技股份有限公司 | Voice reminding device for green light switching of signal lamp |
| CN111798681A (en) * | 2020-07-15 | 2020-10-20 | 上海图丽信息技术有限公司 | Vehicle-road cooperative traffic signal auxiliary system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3371768B2 (en) * | 1997-08-29 | 2003-01-27 | 株式会社デンソー | Vehicle traveling route guidance device and map data recording medium thereof |
| CN101593435A (en) * | 2008-05-26 | 2009-12-02 | 奥城同立科技开发（北京）有限公司 | Implement the controlling system of traffic light of traffic crossing priority passing according to jam situation |
| JP5670721B2 (en) * | 2010-12-27 | 2015-02-18 | アルパイン株式会社 | Navigation device |
| CN102306451B (en) * | 2011-06-01 | 2014-02-05 | 电信科学技术研究院 | Traffic light control method, device and system |
| CN104933882A (en) * | 2015-05-20 | 2015-09-23 | 浙江吉利汽车研究院有限公司 | Traffic intersection driving assistance method and system |
| JP6600995B2 (en) * | 2015-06-02 | 2019-11-06 | 株式会社豊田中央研究所 | Vehicle control apparatus and program |
| CN105279983A (en) * | 2015-12-07 | 2016-01-27 | 深圳市安网通信有限公司 | Forklift passage traffic light warning system and control method |
| CN108804983B (en) * | 2017-05-03 | 2022-03-18 | 腾讯科技（深圳）有限公司 | Traffic signal lamp state identification method and device, vehicle-mounted control terminal and motor vehicle |
| CN109345843A (en) * | 2018-10-19 | 2019-02-15 | 陈轲 | A kind of adaptive switching control system of traffic lights |
| CN109448415B (en) * | 2018-11-13 | 2021-12-17 | 郑州云海信息技术有限公司 | Lane selection method, system and device and readable storage medium |
-
2021
- 2021-01-22 CN CN202110090418.6A patent/CN112669624B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5938720A (en) * | 1995-02-09 | 1999-08-17 | Visteon Technologies, Llc | Route generation in a vehicle navigation system |
| CN201465297U (en) * | 2009-04-28 | 2010-05-12 | 重庆市易博数字技术有限公司 | Device for controlling traffic signal lamp by vehicle location |
| CN102080964A (en) * | 2009-12-01 | 2011-06-01 | 汤贻芸 | Intelligent navigation method and system for automatically determining navigation destination address |
| CN102117546A (en) * | 2011-03-10 | 2011-07-06 | 上海交通大学 | On-vehicle traffic light assisting device |
| CN105352519A (en) * | 2014-08-22 | 2016-02-24 | 环达电脑(上海)有限公司 | Short-path fuzzy navigation method |
| CN105608910A (en) * | 2014-11-21 | 2016-05-25 | 中兴通讯股份有限公司 | Method, device and system for controlling traffic lights to change |
| CN204537461U (en) * | 2015-04-23 | 2015-08-05 | 南京信息工程大学 | A kind of traffic lights prompting instrument |
| CN105674999A (en) * | 2016-01-15 | 2016-06-15 | 武汉光庭信息技术股份有限公司 | Personal driving database based system and method for predicting driving direction at intersection |
| CN108665719A (en) * | 2017-03-28 | 2018-10-16 | 比亚迪股份有限公司 | Traffic lights based reminding method, device and vehicle |
| CN107464437A (en) * | 2017-07-28 | 2017-12-12 | 武汉依迅北斗空间技术有限公司 | The route selection system and routing resource of a kind of slag-soil truck |
| CN109003448A (en) * | 2018-08-02 | 2018-12-14 | 北京图森未来科技有限公司 | A kind of air navigation aid of intersection, equipment and system |
| CN111060120A (en) * | 2018-10-17 | 2020-04-24 | 上海博泰悦臻网络技术服务有限公司 | Navigation method, navigation device and vehicle |
| CN111382217A (en) * | 2018-12-29 | 2020-07-07 | 北京奇虎科技有限公司 | Destination recommendation method and device |
| CN110047308A (en) * | 2019-03-04 | 2019-07-23 | 武汉理工大学 | Traffic light signals and cab signal integration receive-transmit system and its control method |
| CN110276964A (en) * | 2019-05-27 | 2019-09-24 | 八维通科技有限公司 | A method of intelligence adjusts the traffic lights time |
| CN110807937A (en) * | 2019-11-09 | 2020-02-18 | 连云港杰瑞电子有限公司 | Special service task linkage command system and method |
| CN111583689A (en) * | 2020-04-21 | 2020-08-25 | 广东振业优控科技股份有限公司 | Voice reminding device for green light switching of signal lamp |
| CN111798681A (en) * | 2020-07-15 | 2020-10-20 | 上海图丽信息技术有限公司 | Vehicle-road cooperative traffic signal auxiliary system |
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