CN111210613A - Motorcade sequencing automatic display system and method based on Internet of vehicles V2V communication - Google Patents
Motorcade sequencing automatic display system and method based on Internet of vehicles V2V communication Download PDFInfo
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- CN111210613A CN111210613A CN202010043750.2A CN202010043750A CN111210613A CN 111210613 A CN111210613 A CN 111210613A CN 202010043750 A CN202010043750 A CN 202010043750A CN 111210613 A CN111210613 A CN 111210613A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/22—Platooning, i.e. convoy of communicating vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
- G08G1/205—Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
Abstract
The invention relates to a motorcade sequencing automatic display system and method based on vehicle networking V2V communication, wherein vehicles in a motorcade are subjected to V2V real-time communication through the vehicle networking, the relative positions of the vehicles in the motorcade are obtained through a processing unit of the system, a display unit on a vehicle body is controlled, and a visual effect corresponding to a sequence number is displayed to indicate the current relative positions of the vehicles in the whole motorcade. When the vehicles need to be switched into or out of the motorcade due to tasks, the vehicles need to communicate with other vehicles in the motorcade in time, obtain a new motorcade sequence number through a corresponding sequencing algorithm, and change the visual effect of the display unit. The invention provides a new scheme for solving the problem of order display in the advancing process of the motorcade visually, which not only can dynamically number the vehicles according to the relative positions of the vehicles in the motorcade so as to display the relative positions of the vehicles in the motorcade, but also can mark the vehicle with more striking identification, thereby facilitating the surrounding vehicles or pedestrians to know the information such as the range of the motorcade, the arrangement order of the vehicles in the motorcade and the like.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to a motorcade sequencing automatic display system and method based on Internet of vehicles V2V communication.
Background
V2V is a mesh network in which nodes can transmit, capture and forward signals. After the V2V (Vehicle to Vehicle) technology is used, the vehicles can send the information of the place, the speed, the direction and other aspects 10 times per second, and one Vehicle can detect the running track of the other Vehicle, so that the real-time information interconnection between the vehicles is realized.
The industry originally proposed Ad Hoc network technology in about 2000, the Ad Hoc is a multi-hop temporary autonomous system, is used in the military field for the first time, and is applied in the field of unmanned aerial vehicles at present. Although the Ad Hoc can also be applied to the field of vehicle networking, the Ad Hoc can not meet the requirements of future vehicle networking and unmanned use scenes.
In 1992, the us society for testing and materials (ASTM) originally proposed DSRC (Dedicated Short range communications ), a technology specially developed internationally for vehicle communications; in recent two years, technical research and development personnel in China put forward 'urban Internet of vehicles V2V link delay dynamic prediction'; the early warning algorithm of the uncontrolled intersection based on the V2V and the GPS provides a technical basis for how vehicles safely and efficiently pass at intersections without traffic lights, which is also the V2V of the future times without traffic lights; the author of "simulation design based on V2V communication model in vehicle ad hoc networks" proposes a vehicle ad hoc network, which is also a prototype of future autonomous driving formation; the 'D2D _ based _ V2V vehicle-mounted communication power distribution scheme of time delay QoS guarantee' provides an algorithm and a model of vehicle-mounted communication power distribution. At present, the vehicle-to-vehicle communication mainly comprises DSRC technology, Ad Hoc technology and C-V2V technology, wherein 5G-V2V is the future development trend.
In 2012, the U.S. transportation office established a research center dedicated to the V2V technology to research 5.9GHz wireless networks; in 2016, 12 months, offered by the olyma government, all automobiles, light trucks were equipped with V2V technology; when 2017 Cadillack CTS is introduced by the US market, the V2V function is provided in part of vehicle types, and the technology becomes standard in the middle term; the LTE network platform provided by the angosi has been introduced by the general group several years ago. Toyota also introduced the V2V technology in Japan.
V2V still stays in the scientific and technical configuration of theoretical technical level and some high-end vehicle types in a short time, and is really popularized until after the 5G-V2X standard is frozen, and the V2V technology can be used for related vehicle information management in a vehicle queue for future road traffic vehicle management.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a motorcade sequencing automatic display system and method based on the communication of the Internet of vehicles V2V, which can obtain the sequence number of the vehicles in the motorcade in real time, control the physical media on the vehicle body to display the corresponding visual effect, more accurately and quickly dynamically code the vehicles according to the real-time positions of the vehicles, and have more obvious identification, thereby facilitating the surrounding vehicles or pedestrians to know the information such as the range of the motorcade and the sequence of the vehicles in the motorcade.
The purpose of the invention can be realized by the following technical scheme:
a fleet sequencing automatic display system based on internet of vehicles V2V communication, the system comprising:
the detection unit is used for acquiring the running conditions of the vehicle, including real-time coordinates, running speed and steering wheel angle data;
the communication unit is used for carrying out real-time communication among vehicles and sharing and transmitting the vehicle running data acquired by the detection unit among the vehicles of the fleet;
the processing unit is used for acquiring the driving data of each vehicle in the fleet transmitted back by the communication unit in real time, judging whether a vehicle is switched into/out of the fleet or not, and updating the sequence number of each vehicle in the fleet in time according to the judgment;
and the display unit is used for displaying corresponding visual effects according to the sequence numbers calculated by the processing unit in real time so as to indicate the relative position of the current vehicle in the fleet.
Further, the display unit adopts an LED display screen which is arranged at the front face position of each vehicle in the fleet to display characters or patterns representing the sequence.
Further, the display unit adopts an LED lamp strip which is arranged at the position of the waist line of each vehicle in the motorcade so as to indicate the position of the vehicle in the motorcade through colors with different saturation and lightness in the same color system.
The invention also provides an automatic display method of the motorcade sequencing automatic display system based on the communication of the Internet of vehicles V2V, which comprises the following steps: and the processing unit judges different cut-in/cut-out actions of a certain vehicle relative to the queue according to the received running data of each vehicle, and then further compares and judges the different cut-in/cut-out actions and carries out a corresponding automatic display scheme.
Further, when the processing unit determines that the vehicle with the sequence number a is about to be cut out of the queue according to the received running data of each vehicle, the processing unit records the value of a, and compares the current number value k of each vehicle with a for further comparison and determination, and the automatic display scheme for performing further comparison and determination and performing the corresponding automatic display scheme specifically includes:
when the k value is smaller than a, namely the vehicle runs relatively behind the cut-out queue vehicle, the k value is kept unchanged;
when the k value is larger than a, namely the vehicle runs relatively behind the cut-out queue vehicle, the k value is updated to k-1;
when the k value is equal to a, namely the vehicle is a cut-out vehicle, the k value is updated to null, and the display unit displays the visual effect corresponding to the sequence number after the number is updated.
Further, when the k value is null, the display unit is updated to an initial state, and nothing is displayed to indicate that the vehicle is not in the fleet.
Further, when the processing unit determines that a vehicle is cutting into the fleet queue according to the received running data of each vehicle, two vehicles closest to the vehicle are calculated and analyzed in real time, sequence numbers a and b corresponding to the two vehicles are obtained, and the vehicle is instructed to cut into between the two vehicles, and meanwhile, the processing unit compares and determines a current number value k and b of each vehicle, and the scheme for performing further comparison and determination and performing corresponding automatic display specifically includes:
when the k value is smaller than b, namely the vehicle runs relatively in front of the vehicle cut into the queue, the k value is kept unchanged;
when the k value is larger than or equal to b, namely the vehicle runs relatively behind the vehicle cut into the queue, the k value is updated to k + 1; and the vehicle number k of the cut-in queue is updated to be k ═ a +1, and the display unit displays corresponding visual effects after the number is updated.
Compared with the prior art, the invention has the following advantages:
(1) the invention discloses a method for displaying vehicle sequence in the prior motorcade, which is completed by sticking paper labels on the vehicles in advance, and once the vehicle sequence in the motorcade is changed, the work of changing the labels is very difficult, time-consuming and labor-consuming.
(2) Because the existing motorcade numbers are generally made of paper and are generally pasted on the front faces of the vehicles, the vehicle logo numbers are not striking enough, the system comprises a display unit, the display unit can be composed of original components such as LED lamp belts and LED display screens and is placed at different positions of the vehicles, such as the front faces of the vehicles, the waist lines of the vehicles and the like, the brightness of physical media in the display unit is high, the service life is long, and surrounding vehicles and pedestrians can more clearly see the range of the motorcade and the relative positions of the vehicles; and the adjustment is flexible, and different visual effects can be conveniently designed, so that the traveling of the motorcade is more attractive.
Drawings
FIG. 1 is a system schematic of an embodiment of the present invention;
FIG. 2 is a schematic flow chart of an embodiment of the present invention;
FIG. 3 is a schematic reference diagram of the position distribution on the vehicle when the physical medium of the display unit adopts an LED display screen according to the embodiment of the present invention;
fig. 4 is a schematic reference diagram of the position distribution on the vehicle when the physical medium in the display unit adopts the LED strip according to the embodiment of the present invention;
FIG. 5 is a diagram illustrating a sequence of displaying visual effects when the physical medium of the display unit employs an LED display screen according to an embodiment of the present invention;
fig. 6 is a reference diagram of sequential display visual effects when the physical medium in the display unit adopts the LED strip according to the embodiment of the present invention;
FIG. 7 is a vehicle cut-out state change reference diagram of an embodiment of the present invention;
fig. 8 is a vehicle cut-in state change reference diagram according to the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The invention relates to a system for automatically performing visual top sequence display on motorcade sequence based on V2V communication technology in internet of vehicles, which comprises:
the detection unit is used for acquiring the running conditions of the vehicle, including data such as real-time coordinates, running speed and steering wheel turning angle;
the communication unit is used for carrying out real-time communication among the vehicles and sharing and transmitting the vehicle running data acquired by the detection unit among the vehicles of the fleet;
and the processing unit is used for acquiring the driving data of each vehicle in the fleet, which is transmitted back through the communication unit, in real time, judging whether a vehicle is switched into/out of the queue or not, and updating the sequence number of each vehicle in the fleet in time according to the judgment.
And the display unit comprises physical media such as an LED display screen, an LED lamp strip and the like, and displays corresponding visual effects according to the sequence number calculated by the processing unit in real time so as to indicate the relative position of the current vehicle in the motorcade.
Practical examples:
as shown in fig. 1, the detection unit acquires data such as the driving speed, the steering wheel angle and the accelerator pedal of the vehicle from the vehicle CAN bus data in real time, and transmits the data between the fleet vehicles in a point-to-point manner by using the V2V communication technology in the internet of vehicles through the communication unit. The processing unit is divided into a calculation module and a control module, the calculation module is responsible for summarizing and processing all data, calculating and drawing a real-time traveling route of the motorcade, judging whether vehicles in the motorcade are to be switched into/out of the motorcade or not, and then changing the sequence number of the vehicles according to the judgment; the control module controls the physical media in the display unit to display corresponding visual effects according to the current serial number value of the vehicle.
FIG. 2 is a schematic flow chart of an embodiment of the present invention;
as shown in fig. 3 and 4, the physical medium in the display unit is reasonably distributed on the vehicle body according to the characteristics of shape, size, etc., for example: placing an LED display screen or an LED lamp strip and the like at the front face of the vehicle; the LED light bars and the light bands are placed at the waist line of the vehicle and the like, so that pedestrians or surrounding vehicles can clearly and directly observe the LED light bars and the light bands.
As shown in fig. 5, the visual display effect of the physical medium in the display unit may be: an LED display screen displays text or graphics representing numbers to indicate the relative position of the vehicles in the fleet. The method is simple and intuitive, and the serial number of the vehicle can be clearly seen.
As shown in fig. 6, the visual display effect of the physical medium in the display unit may be: the relative position of the vehicles in the fleet is indicated by displaying colors with different saturation and lightness in the same color system by using the LED lamp strip. The specific mode is that, according to the saturation of the colour that reduces in proper order of serial number, make the lamp area on the whole motorcade present the effect of a set of gradual change. The mode is more beautiful, and the range of the motorcade can be seen clearly.
As shown in fig. 7, when the processing unit determines that the vehicles with sequence number a are about to cut out the queue according to the received running data of each vehicle, the value of a is recorded, and the current number value k of each vehicle is compared with a for determination, and when the value of k is smaller than a (namely the vehicle runs in front of the vehicle cut out the queue), the value of k is kept unchanged; when the k value is larger than a (namely the vehicle runs behind the cut-out queue vehicle), the k value is updated to be k-1; when the value of k is equal to a (i.e., the vehicle is a cut-out vehicle), the value of k is updated to null. The display unit will display the visual effect corresponding to the order number after the number is updated. When the k value is null, the display unit is updated to the initial state and does not display any content, indicating that the vehicle is not already in the fleet.
Referring to fig. 8, when the processing unit determines that there is a vehicle to be cut into the fleet queue according to the received driving data of each vehicle, two vehicles closest to the vehicle are calculated and analyzed in real time, sequence numbers a and b of the two vehicles are obtained, and the vehicle is instructed to cut into the space between the two vehicles. At the moment, the processing unit compares the current number value k of each vehicle with the value b, and when the value k is smaller than the value b (namely the vehicle runs in front of the vehicle to be cut into the queue), the value k is kept unchanged; when the k value is larger than or equal to b (namely the vehicle runs behind the vehicle to be cut into the queue), the k value is updated to k + 1; and updating the vehicle number k of the cut-in queue to be k ═ a + 1. And after the serial number is updated, the display unit displays a corresponding visual effect.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An automatic display system for vehicle fleet sequencing based on Internet of vehicles V2V communication, the system comprising:
the detection unit is used for acquiring the running conditions of the vehicle, including real-time coordinates, running speed and steering wheel angle data;
the communication unit is used for carrying out real-time communication among vehicles and sharing and transmitting the vehicle running data acquired by the detection unit among the vehicles of the fleet;
the processing unit is used for acquiring the driving data of each vehicle in the fleet transmitted back by the communication unit in real time, judging whether a vehicle is switched into/out of the fleet or not, and updating the sequence number of each vehicle in the fleet in time according to the judgment;
and the display unit is used for displaying corresponding visual effects according to the sequence numbers calculated by the processing unit in real time so as to indicate the relative position of the current vehicle in the fleet.
2. The networked V2V vehicle-based fleet sequencing automatic display system according to claim 1, wherein said display unit comprises LED display screen, said LED display screen is disposed at the front face position of each vehicle in the fleet to display text or patterns representing the sequence.
3. The networked V2V communication-based fleet sequencing automatic display system according to claim 1, wherein said display unit employs LED strip, said LED strip is disposed on the waist line position of each vehicle in the fleet to indicate the position of the vehicle in the fleet by different saturation and lightness colors in the same color system.
4. An automatic display method based on the vehicle fleet ordering automatic display system based on the vehicle networking V2V communication according to any one of claims 1 to 3, wherein the method comprises the following steps: and the processing unit judges different cut-in/cut-out actions of a certain vehicle relative to the queue according to the received running data of each vehicle, and then further compares and judges the different cut-in/cut-out actions and carries out a corresponding automatic display scheme.
5. The automatic display method of the vehicle fleet ordering automatic display system based on the vehicle networking V2V communication according to claim 4, wherein when the processing unit determines that the vehicles with sequence number a are about to cut out of the queue according to the received driving data of each vehicle, the processing unit records the value of a, and compares the current number value k of each vehicle with a, and the further comparison and the corresponding automatic display scheme specifically comprise:
when the k value is smaller than a, namely the vehicle runs relatively behind the cut-out queue vehicle, the k value is kept unchanged;
when the k value is larger than a, namely the vehicle runs relatively behind the cut-out queue vehicle, the k value is updated to k-1;
when the k value is equal to a, namely the vehicle is a cut-out vehicle, the k value is updated to null, and the display unit displays the visual effect corresponding to the sequence number after the number is updated.
6. The automatic display method of claim 5, wherein when the k value is null, the display unit is updated to an initial state and does not display any content to indicate that the vehicle is not in the fleet.
7. The method as claimed in claim 4, wherein when the processing unit determines that there is a vehicle entering the fleet queue according to the received driving data of each vehicle, the processing unit calculates and analyzes two vehicles closest to the vehicle in real time, obtains sequence numbers a and b corresponding to the two vehicles, and commands the vehicle to enter between the two vehicles, and the processing unit compares and determines the current number value k and b of each vehicle, and the scheme for performing further comparison and determination and performing corresponding automatic display specifically includes:
when the k value is smaller than b, namely the vehicle runs relatively in front of the vehicle cut into the queue, the k value is kept unchanged;
when the k value is larger than or equal to b, namely the vehicle runs relatively behind the vehicle cut into the queue, the k value is updated to k + 1; and the vehicle number k of the cut-in queue is updated to be k ═ a +1, and the display unit displays corresponding visual effects after the number is updated.
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Cited By (1)
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Application publication date: 20200529 |