CN110555995A - Smart city bad sight distance vehicle meeting early warning system based on Internet of vehicles - Google Patents
Smart city bad sight distance vehicle meeting early warning system based on Internet of vehicles Download PDFInfo
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- CN110555995A CN110555995A CN201910926803.2A CN201910926803A CN110555995A CN 110555995 A CN110555995 A CN 110555995A CN 201910926803 A CN201910926803 A CN 201910926803A CN 110555995 A CN110555995 A CN 110555995A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
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Abstract
The invention relates to a smart city bad sight distance vehicle crossing early warning system based on the Internet of vehicles, wherein a steering recognition device, an incoming vehicle recognition device and a vehicle crossing early warning device are respectively and independently connected to a comprehensive processing device to carry out data interaction; the steering recognition device is used for acquiring the turning-on image information of a steering lamp of the coming vehicle of the target lane; the incoming vehicle identification devices are sequentially distributed on the target lane at intervals so as to collect the positions of incoming vehicles on the target lane; the meeting early warning device is sequentially arranged on the early warning lane at intervals and distributed in a one-to-one correspondence manner with the incoming vehicle recognition device along the crossing far away from the meeting intersection, and prompts meeting information to the early warning lane; and the comprehensive processing device starts the corresponding meeting early warning device according to the triggering information of the incoming vehicle recognition device when judging that the left turn lamp of the incoming vehicle of the target lane is turned on. The mutual interference of vehicles participating in the road in the intersection area is avoided, and the traffic accident in the intersection area is also avoided.
Description
Technical Field
The invention belongs to the field of Internet of vehicles, and particularly relates to a smart city bad sight distance vehicle crossing early warning system based on the Internet of vehicles.
Background
At present, when a vehicle is met at a T-shaped intersection, drivers on a branch road and a main road are affected by a vehicle A column, the form state of the vehicle on the other lane is difficult to distinguish in time, so that when the driver on one lane moves straight and the driver on the other lane turns, the speed is difficult to reduce within a proper distance to allow the vehicle to move, the vehicle is easy to scratch and rub, the turning vehicle is easy to be overturned by the straight vehicle, and great damage is caused to the personal safety of the driver and passengers.
The prior patent CN 205839615U discloses a solar safety prompting device for meeting at curved road. After the vehicle is triggered to reach the detector, the vehicle possibly flickers with the single warning lamp to give an alarm or an LED screen is adopted to prompt the vehicle to come in, and after the vehicle is triggered to drive away from the detector, the warning lamp or the LED screen is turned off. There are also some that can detect the speed, number, etc. of incoming vehicles. However, the coming vehicle early warning device can only remind the driver whether there is a collision vehicle, the warning lamp or the LED display screen is single, even if the speed and the number of the coming vehicles can be displayed, the driver cannot be reminded intuitively and continuously, and the collision vehicle can not meet the vehicle smoothly and safely according to a certain prompting speed.
disclosure of Invention
The invention aims to provide a timely and effective smart city bad sight distance vehicle crossing early warning system based on the Internet of vehicles, which adopts the following technical scheme:
The intelligent city bad sight distance vehicle crossing early warning system based on the internet of vehicles comprises a steering recognition device, an incoming vehicle recognition device, a vehicle crossing early warning device and a comprehensive processing device, wherein the steering recognition device, the incoming vehicle recognition device and the vehicle crossing early warning device are respectively and independently connected to the comprehensive processing device for data interaction;
The steering recognition device is used for acquiring the turning-on image information of a steering lamp of the coming vehicle of the target lane;
the incoming vehicle identification devices are sequentially distributed on the target lane at intervals so as to collect the positions of incoming vehicles on the target lane;
the meeting early warning device is sequentially arranged on the early warning lane at intervals and distributed in a one-to-one correspondence manner with the incoming vehicle recognition device along the crossing far away from the meeting intersection, and prompts meeting information to the early warning lane;
and the comprehensive processing device starts the corresponding meeting early warning device according to the triggering information of the incoming vehicle recognition device when judging that the left turn lamp of the incoming vehicle of the target lane is turned on.
Preferably, the identification device that comes a car and meeting car early warning device are the RSU, are provided with the OBU on coming a car, by RSU discernment OBU on the target lane, OBU and RSU mutual discernment on the early warning lane to the on-vehicle stereo set of OBU communication connection.
Preferably, the integrated processing device identifies the OBU by the RSU when the corresponding RSU is activated but not identified by the OBU, determines the position where the vehicle comes from the warning lane, and controls all RSUs to be activated when the vehicle comes from the warning lane and passes the position where the corresponding RSU is located.
Preferably, the vehicle-coming recognition device comprises at least one of a geomagnetic sensor and a photoelectric sensor, and the vehicle-crossing early warning device is a projection device for projecting influence information to the road surface of the early warning lane.
preferably, the distance between the meeting intersection and the nearest vehicle-coming recognition device is less than the distance between the meeting intersection and the nearest vehicle-coming early warning device, and the steering recognition device is positioned at the opposite intersection at the tail end of the target lane under any one of the following conditions:
a, a target lane is a section of lane which runs to a vehicle-meeting intersection in one side lane close to a main road on the T-shaped intersection, and an early warning lane is a side lane which runs to the vehicle-meeting intersection on the main road of the T-shaped intersection;
b, the target lane and the early warning lane are two opposite lanes at the meeting intersection;
And c, the target lane is a left-turn lane, the early warning lane is a right-turn lane, and the coming vehicle of the target lane and the coming vehicle of the early warning lane converge to the same lane through the meeting intersection.
Preferably, the target lane is a lane on the trunk of the t-junction on one side of the traffic crossing, the early warning lane is a lane on the trunk of the t-junction on one side of the traffic crossing close to the trunk, the steering recognition device is located at the end of the target lane, and the distance from the traffic crossing to the nearest vehicle-coming recognition device is smaller than the distance from the nearest vehicle-crossing early warning device.
Preferably, the comprehensive processing device can also acquire the trigger frequency of each vehicle-coming recognition device triggered in sequence, and when the trigger frequency is not lower than a set threshold, the vehicle-crossing early warning device corresponding to the vehicle-crossing early warning device close to one side of the vehicle-crossing intersection is started.
Preferably, the meeting early warning device can also be connected with a vehicle data recorder and/or an anti-theft recording device on the early warning lane; the set threshold is divided into a low speed threshold corresponding to the speed higher than the speed limit standard of the road but lower than a double value and a high speed threshold corresponding to the speed higher than the speed limit standard of the road, and when the trigger frequency is higher than the high speed threshold, the comprehensive processing device sends control information for starting a driving recorder and/or an anti-theft recording device to all the early warning lanes through all the meeting early warning devices on the early warning lanes.
The invention has the following beneficial effects:
The invention is characterized in that on the meeting and/or crossing and/or converging road, under the condition that the target lane and the early warning lane both participate in the coming vehicle, the position of the road participating in the incoming distance is sensed and acts on the early warning lane on the other side in the form of signals, so that the road participation coming vehicle on the side judges the position of the road participation coming vehicle on the opposite side, and under the condition that the signal light synchronously moves forwards in real time, the road participation is convenient for distinguishing the speed of the road participation on the opposite side, to identify and decelerate in advance in the meeting area of the meeting vehicles and/or intersections and/or confluence, therefore, the system can not only prompt whether a vehicle comes outside the sight distance, but also prompt the position and the driving speed of the vehicle coming from the opposite direction of a driver, avoids the mutual interference of the vehicles coming from the road participation in a rendezvous area, and also avoids the occurrence of traffic accidents in the rendezvous area.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;
FIG. 1 is a schematic diagram of a smart city bad sight distance vehicle-meeting early-warning system based on Internet of vehicles, applied to a T-junction main road when a vehicle turns left;
FIG. 2 is a schematic diagram of a smart city bad sight distance vehicle-meeting early-warning system based on the Internet of vehicles, applied to a T-junction branch when a vehicle comes and turns around;
fig. 3 is a schematic diagram of a smart city bad sight distance vehicle-meeting early-warning system based on the internet of vehicles, applied to a branch of a T-junction when a vehicle comes to turn around and a main road comes to turn right.
Detailed Description
In order to make the technical purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention are further described below with reference to the accompanying drawings and specific embodiments.
This wisdom city bad sight distance meeting early warning system based on car networking mainly comprises turn to recognition device, recognition device that comes the car, meeting early warning device and comprehensive processing device. The control processing device belongs to a control box or a municipal traffic control system which has only one upper server and is positioned at a corresponding intersection. The steering recognition device, the coming vehicle recognition device and the meeting early warning device are respectively and independently connected to the comprehensive processing device to carry out data interaction, the steering recognition device and the coming vehicle recognition device are installed on a target lane, and the meeting early warning device is installed on an early warning lane.
The turning recognition device is generally an independent camera device or a camera unit integrated in other municipal monitoring systems and used for collecting turning lamp starting image information of coming vehicles on a target lane, the turning recognition device is arranged in a one-to-one correspondence mode according to the number of the target lanes, the left turning of coming vehicles at a T-shaped intersection is taken as an example, and according to traffic rules of left transfer straight-going, the turning recognition device only needs to be arranged on the straight-going lane.
the incoming vehicle recognition device is provided with a plurality of devices which are sequentially distributed on the target lane at intervals so as to collect the positions of the incoming vehicles on the target lane. The vehicle-meeting early warning devices are also multiple and are sequentially distributed on the early warning lane at intervals and in one-to-one correspondence with the vehicle-coming recognition devices along the crossing far away from the vehicle-meeting intersection, and the vehicle-meeting early warning devices prompt vehicle-meeting information to the early warning lane. The distance between the meeting intersection and the nearest vehicle-coming recognition device is less than the distance between the meeting intersection and the nearest vehicle-meeting early warning device. The coming vehicle identification device and the meeting early warning device are both RSU (Road Side Unit, Chinese) units, the coming vehicle is provided with OBU (On Board Unit, Chinese) units, the OBU is identified by the RSU On the target lane, the OBU and the RSU can be identified mutually On the early warning lane, and the OBU is in communication connection with the vehicle-mounted sound equipment, the driving recorder and the anti-theft recording device. When the corresponding RSU is started but not identified by the OBU, the comprehensive processing device identifies the OBU by the RSU to judge the position of the coming vehicle of the early warning lane, and controls all the RSUs to be started when the coming vehicle of the early warning lane crosses the position of the corresponding RSU. The smart city bad sight distance meeting early warning system application scene based on the Vehicle networking in the embodiment may include vehicles supporting any kind of Vehicle networking (abbreviated as V2X), for example, LTE-V (Long Term Evolution-Vehicle) technology or DSRC (Dedicated Short Range Communications, chinese) technology. The vehicle is provided with an OBU (On Board Unit, Chinese: vehicle-mounted Unit), the vehicle can perform short-distance wireless communication with the intersection guiding device based On the internet of vehicles through the OBU, and information is transmitted by taking a wireless signal as a carrier. The vehicle may be an automobile, which is not limited to a conventional automobile, a pure electric automobile or a hybrid automobile, but may also be applicable to other types of motor vehicles or non-motor vehicles.
and when the comprehensive processing device judges that the left turn light of the coming vehicle of the target lane is turned on, the corresponding meeting early warning device is started according to the trigger information of the coming vehicle recognition device. The comprehensive processing device can also acquire the trigger frequency of each vehicle-coming recognition device triggered in sequence, and when the trigger frequency is not lower than a set threshold value, the vehicle-crossing early warning device corresponding to the vehicle-crossing early warning device and close to one side of the vehicle-crossing intersection is started. The set threshold is divided into a low speed threshold corresponding to the speed higher than the speed limit standard of the road but lower than a double value and a high speed threshold corresponding to the speed higher than the speed limit standard of the road, and when the trigger frequency is higher than the high speed threshold, the comprehensive processing device sends control information for starting a driving recorder and an anti-theft recording device to all the early warning lanes through all the meeting early warning devices on the early warning lanes.
Referring to fig. 1, a schematic diagram is shown when an incoming vehicle turns left at a t-junction trunk. The target lane is a section of lane which runs to the vehicle-meeting intersection in one side lane close to the main road on the T-shaped intersection, and the early warning lane is a side lane which runs to the vehicle-meeting intersection on the main road of the T-shaped intersection. The steering recognition device is positioned at an opposite intersection at the tail end of the target lane.
referring to fig. 2, a schematic diagram of a T-junction branch when an incoming vehicle turns around is shown. The target lane and the early warning lane are two opposite lanes at the crossing. The steering recognition device is positioned at an opposite intersection at the tail end of the target lane.
Referring to fig. 3, a schematic diagram of a T-junction branch road when the incoming vehicle turns around and a main road turns right is shown. The target lane is a left-turn lane, the early warning lane is a right-turn lane, and the coming vehicles of the target lane and the coming vehicles of the early warning lane converge to the same lane through the meeting intersection. The steering recognition device is positioned at an opposite intersection at the tail end of the target lane.
When the wireless communication system is used, the RSU can establish wireless communication connection with an incoming vehicle in a target lane where the meeting intersection is located so as to acquire the driving state information of the incoming vehicle. The incoming vehicle may be one or more vehicles, the driving state information may be represented in a form of BSM (basic safety Messages, chinese: basic safety information), and the driving state information may include, for example: the data of the coming vehicle state (the identification number of the coming vehicle, the current running speed, the running direction, the time, the brake state, the light state and the gear state of the coming vehicle) and the position data of the coming vehicle (the longitude and latitude coordinates and the altitude of the current position of the coming vehicle). The RSU and the coming vehicle may establish a wireless communication connection in a manner that the coming vehicle OBU is connected with the RSU by using an LTE-V wireless communication technology. After the RSU successfully establishes wireless communication connection with the incoming vehicle, the OBU of the incoming vehicle regularly acquires the driving state information of the incoming vehicle according to a preset period (for example, 100ms), and transmits the acquired driving state information to the RSU, so that the RSU transmits the received driving state information to the comprehensive processing device. During the process that the integrated processing device receives the running state information, the running state information can be checked for validity to determine whether the received running state information is abnormal, when the running state information is detected to be abnormal (for example, a normal threshold of the running speed can be preset according to the level of a road where a meeting intersection is located, if the road is an urban road, the normal threshold is 80km/h, and if the running speed in the running state information received by the integrated processing device is higher than 80km/h, the running state information is judged to be abnormal), the integrated processing device can record the running state information with the abnormality and upload the running state information to a server, and an engineer is informed to check and maintain the running state information.
the steering recognition device collects image information of a target lane (the image information is real-time image data of a current target intersection collected by the steering recognition device, and the collection frequency can be 24 frames/s, for example), and sends the image information to the comprehensive processing device. After receiving the driving state information and the image information, the comprehensive processing device generates prompt information according to the image information and the driving state information and sends the prompt information to the meeting early warning device, and the meeting early warning device can transmit the prompt information to the vehicle-mounted OBU after receiving the prompt information. The prompt information is used for prompting the position of the coming vehicle of the target lane.
In other embodiments, the target lane may also be a lane on a trunk of the t-junction that drives to the meeting junction, the early warning lane is a section of lane on the trunk of the t-junction that drives to the meeting junction in a lane on a side close to the trunk, the turn recognition device is located at the end of the target lane, and the distance from the meeting junction to the nearest incoming vehicle recognition device is less than the distance from the nearest meeting early warning device.
in other embodiments, the vehicle-coming recognition device may also be at least one of a geomagnetic sensor and a photoelectric sensor, and the vehicle-crossing warning device is a projection device that projects influence information onto a road surface of the warning lane. Therefore, the early warning can be carried out on the coming vehicle of the early warning lane in a signal light mode, but the early warning effect is poor in humanity due to the limitation of daytime reflection.
Finally, it should be noted that: the above embodiments are merely illustrative and not restrictive of the technical solutions of the present invention, and any equivalent substitutions and modifications or partial substitutions made without departing from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. The intelligent city bad sight distance vehicle crossing early warning system based on the internet of vehicles is characterized by comprising a steering recognition device, an incoming vehicle recognition device, a vehicle crossing early warning device and a comprehensive processing device, wherein the steering recognition device, the incoming vehicle recognition device and the vehicle crossing early warning device are respectively and independently connected to the comprehensive processing device for data interaction;
The steering recognition device is used for acquiring the turning-on image information of a steering lamp of the coming vehicle of the target lane;
The incoming vehicle identification devices are sequentially distributed on the target lane at intervals so as to collect the positions of incoming vehicles on the target lane;
The meeting early warning device is sequentially arranged on the early warning lane at intervals and distributed in a one-to-one correspondence manner with the incoming vehicle recognition device along the crossing far away from the meeting intersection, and prompts meeting information to the early warning lane;
And the comprehensive processing device starts the corresponding meeting early warning device according to the triggering information of the incoming vehicle recognition device when judging that the left turn lamp of the incoming vehicle of the target lane is turned on.
2. the intelligent city bad sight distance vehicle crossing early warning system based on internet of vehicles as claimed in claim 1, wherein the coming vehicle identification device and the vehicle crossing early warning device are both RSUs, an OBU is provided on the coming vehicle, the RSU identifies the OBU on the target lane, the OBU and the RSU can identify each other on the early warning lane, and the OBU is connected with the vehicle audio in communication.
3. The system of claim 2, wherein the integrated processing device identifies the OBU by the RSU when the corresponding RSU is activated but not identified by the OBU, determines the location of the coming vehicle in the warning lane, and controls all RSUs to be activated when the coming vehicle in the warning lane has passed the corresponding RSU.
4. The intelligent city bad sight distance vehicle crossing early warning system based on internet of vehicles as claimed in claim 1, wherein the vehicle coming recognition device comprises at least one of a geomagnetic sensor and a photoelectric sensor, and the vehicle crossing early warning device is a projection device projecting influence information to the road surface of the early warning lane.
5. The intelligent city bad sight distance vehicle crossing early warning system based on the internet of vehicles as claimed in claim 1, wherein the distance from the vehicle crossing to the nearest vehicle identification device is less than the distance from the nearest vehicle crossing early warning device, and the turning identification device is located at the opposite crossing at the end of the target lane under any one of the following conditions:
a, a target lane is a section of lane which runs to a vehicle-meeting intersection in one side lane close to a main road on the T-shaped intersection, and an early warning lane is a side lane which runs to the vehicle-meeting intersection on the main road of the T-shaped intersection;
b, the target lane and the early warning lane are two opposite lanes at the meeting intersection;
And c, the target lane is a left-turn lane, the early warning lane is a right-turn lane, and the coming vehicle of the target lane and the coming vehicle of the early warning lane converge to the same lane through the meeting intersection.
6. The system of claim 1, wherein the target lane is a side lane on a trunk of the t-junction that drives to the intersection, the pre-warning lane is a section of lane on the trunk of the t-junction that drives to the intersection, the turn recognition device is located at the end of the target lane, and the distance from the intersection to the nearest incoming vehicle recognition device is less than the distance from the nearest incoming vehicle pre-warning device.
7. The Internet of vehicles based smart city bad sight distance meeting early warning system according to any one of claims 1 to 7, wherein the comprehensive processing device further collects the triggering frequency of each vehicle identification device triggered in sequence, and when the triggering frequency is not lower than a set threshold, the meeting early warning device corresponding to the meeting early warning device close to one side of the meeting intersection is started.
8. the intelligent city bad sight distance vehicle-meeting early warning system based on the internet of vehicles as claimed in claim 8, wherein the vehicle-meeting early warning device is further connected with a vehicle data recorder and/or an anti-theft recording device on the early warning lane; the set threshold is divided into a low speed threshold corresponding to the speed higher than the speed limit standard of the road but lower than a double value and a high speed threshold corresponding to the speed higher than the speed limit standard of the road, and when the trigger frequency is higher than the high speed threshold, the comprehensive processing device sends control information for starting a driving recorder and/or an anti-theft recording device to all the early warning lanes through all the meeting early warning devices on the early warning lanes.
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| CN201910926803.2A CN110555995A (en) | 2019-09-27 | 2019-09-27 | Smart city bad sight distance vehicle meeting early warning system based on Internet of vehicles |
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| CN201910926803.2A CN110555995A (en) | 2019-09-27 | 2019-09-27 | Smart city bad sight distance vehicle meeting early warning system based on Internet of vehicles |
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Application publication date: 20191210 |