CN113538913A - Expressway overtaking prompt and psychological intervention device and method - Google Patents
Expressway overtaking prompt and psychological intervention device and method Download PDFInfo
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- CN113538913A CN113538913A CN202110808059.3A CN202110808059A CN113538913A CN 113538913 A CN113538913 A CN 113538913A CN 202110808059 A CN202110808059 A CN 202110808059A CN 113538913 A CN113538913 A CN 113538913A
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- G—PHYSICS
- G08—SIGNALLING
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- 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
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0112—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from the vehicle, e.g. floating car data [FCD]
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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
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
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Abstract
The invention discloses a device and a method for prompting overtaking and psychology intervening on a highway, which comprises a speed acquisition module, a speed sensor module and an information transmission unit I, wherein the speed acquisition module comprises a speed sensor unit and an information transmission unit I; the distance acquisition module comprises a radar ranging unit and an information transmission unit II; the central processing module is used for receiving and acquiring the acquired speed and distance information, integrating the information and making corresponding judgment according to the information; and the intervention unit is used for performing early warning and psychological intervention according to different overtaking states. The invention solves the problem of information communication between vehicles by using a wireless communication mode, can enable a driver to quickly and accurately respond to and judge overtaking operation, improves the safety of overtaking on a highway and reduces the occurrence of traffic accidents.
Description
Technical Field
The invention relates to the technical field of intelligent transportation, in particular to a device and a method for prompting overtaking and psychology intervention on a highway.
Background
Along with the rapid increase of the traffic volume of the expressway, the annual total number of traffic accidents of the expressway is increased, and serious damage is caused to the lives and properties of people. According to research, the phenomenon that vehicles are positioned in a passing lane but cannot reach a certain speed at high speed occurs occasionally, and most of highway traffic accidents can be avoided by early warning.
At present, the overtaking early warning system researched in China mostly adopts radar to measure the distance change of a front vehicle to calculate the speed and the acceleration of the front vehicle and then carries out overtaking early warning. Based on the development of the current new generation of technical information, the wireless communication technology is used for carrying out communication between vehicles to exchange the information of the vehicles in real time, and the wireless communication technology is an innovative field in the technical field of the current expressway overtaking prompt.
Therefore, it is an urgent need to solve the problems of the prior art to provide a device and a method for prompting and psychological intervention for expressway overtaking and effectively improving the safety of expressway overtaking.
Disclosure of Invention
Aiming at the current research situation and the existing problems, the invention provides a device and a method for prompting the overtaking on the highway and psychology intervention, which can timely warn the danger possibly generated when the overtaking on the highway occurs and reduce the occurrence of a large number of traffic accidents.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device and a method for prompting the overtaking of a highway and psychology intervention are arranged on a vehicle A and comprise a speed acquisition module, a distance acquisition module, a central processing module and an intervention module; wherein the content of the first and second substances,
the speed acquisition module comprises a speed sensor unit and an information transmission unit I, and is used for measuring the speed of the current vehicle A and transmitting the measured speed information to the central processing module;
the distance acquisition module is used for measuring the distance information between the vehicle and the front vehicle in the same lane and transmitting the measured distance information to the central processing module;
the central processing module is also connected with an information transmission unit III and receives speed information and distance information from the speed acquisition module and the distance acquisition module.
And the central processing module judges the pre-overtaking state of the received speed information and distance information to obtain a judgment result and sends the judgment result to the intervention module for early warning intervention prompt.
Preferably, the central processing module is mainly a data computing unit and adopts an MCS-51 singlechip. The data computing unit receives information through an IO interface, the received information such as speed, distance and the like is comprehensively analyzed to judge which overtaking state the vehicle belongs to, and the central processing module sends an early warning instruction to the intervention module to perform early warning.
The speed acquisition module measures speed information of the current vehicle A through a speed sensor and sends the speed information to an information transmission unit I;
preferably, the speed sensor unit is a wheel speed sensor, a hall element is used as the wheel speed sensor, magnetic induction intensity is used as an input signal, hall potential pulses are generated along with wheel speed change through the magnetic induction intensity, and after the hall potential pulses are amplified, shaped and amplified in a hall integrated circuit, pulse sequences are output outwards.
The information transmission unit I transmits speed information obtained by measurement of the speed sensor unit to the information transmission unit III in a wireless transmission mode, and the information transmission unit III receives the speed information and the distance information from the speed acquisition module and the distance acquisition module.
The distance acquisition module comprises a radar ranging unit and an information transmission unit II; wherein the content of the first and second substances,
the distance acquisition module measures the distance between the current vehicle A and the vehicle ahead on the same lane through a radar and provides measured distance information to the information transmission unit II;
preferably, the distance acquisition module is implemented by a high-precision laser radar, is installed in front of the vehicle, and is used for measuring the distance information between the vehicle and the vehicle in front of the same lane and transmitting the measured distance information to the central processing module. The basic principle of the laser radar is that a laser beam is emitted from the interior of the radar, the laser beam returns and is received when meeting a front bumper of a front vehicle, and then the distance between the two vehicles is determined according to the receiving time difference between the two vehicles.
And the information transmission unit II transmits the distance information obtained by radar measurement to the information transmission unit III in a wireless transmission mode.
The intervention module comprises an audible and visual alarm device, and the audible and visual alarm device executes different prompt operations according to different judgment results of the pre-overtaking state. And the information transmission unit III of the vehicle A and the information transmission unit III of the vehicle B perform wireless information interaction, and the interactive content comprises speed information and distance information of the vehicle A and the vehicle B.
Preferably, the intervention module is an output part of the system and mainly comprises an LED alarm lamp and a voice prompter. And when the intervention unit receives the command sent by the central processing module, the voice prompter starts to work. The device determines that the vehicle running on the driving lane is in an overtaking safety state, the green light of the safety indicator light is turned on, and the device can give a voice warning; the device is determined that the vehicle running on the driving lane is in a overtaking dangerous state, the red light of the danger indicating lamp is turned on, and the device can warn by voice.
Preferably, the information interaction step has a trigger condition, when the information transmission units iii corresponding to the vehicle a and the vehicle B both receive the speed information and the distance information, and when the distance between the two vehicles is close to A, B to enable wireless communication, the information transmission parts iii of the two vehicles perform wireless communication, exchange the speed and the distance between the two vehicles, store the speed and the distance in the chip, and continuously update the speed and the distance to realize the judgment of the overtaking state.
The invention also provides a overtaking prompting and psychological intervention method of the overtaking prompting and psychological intervention device for the expressway, which comprises the following steps:
step one, acquiring the current speed of a vehicle A and distance information between the vehicle A and a vehicle in front of the same lane;
receiving the speed information and the distance information, and judging a pre-overtaking state according to the speed information and the distance information to obtain a judgment result;
and thirdly, carrying out early warning intervention prompt according to the judgment result.
Before the step one, the device switching condition is also as follows:
the starting condition is as follows: when the left turn light is turned on, the device starts to work;
and (3) closing conditions: and after the overtaking is finished, the left steering lamp is turned off, and the device is turned off.
The second step further comprises: and performing wireless interaction with the vehicle B, wherein the interactive content comprises the speed information and the distance information of the vehicle A and the vehicle B, and the pre-overtaking state judgment of the vehicle A is performed according to the current speed information of the vehicle A, the distance information between the vehicle A and the vehicle B A, B and the speed information of the vehicle B.
The information interaction step has trigger conditions, including: and when the distance between the A vehicle and the B vehicle reaches the information interaction range, exchanging the speed information and the distance information of the two vehicles.
Compared with the prior art, the invention has the following beneficial effects:
the invention can carry out early warning and prevention and control work on the overtaking behavior of the highway, and realizes data sharing and communication between two vehicles by utilizing wireless communication, thereby facilitating a vehicle owner to better master road conditions in the driving process and making safety judgment. The whole device is also added with an LED alarm lamp, and different colors are displayed under different conditions aiming at the vehicle. The whole device improves the safety of the expressway during overtaking and reduces the occurrence of traffic accidents.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of a system composition structure of a device for prompting the overtaking and psychology intervention on the highway.
Fig. 2 is a structural block diagram of a device for prompting the overtaking and psychology intervention on the highway.
FIG. 3 is an intervention unit workflow diagram of the present invention.
Fig. 4 is a simulation diagram of the passing scene of the present invention.
Fig. 5 is a schematic view of the scanning range of the lidar of the present 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the schematic structural diagram of the system composition of the expressway overtaking prompt and psychological intervention device shown in the attached figure 1 of the specification, the system comprises a speed acquisition module, a distance acquisition module, a central processing module and an intervention module; wherein the content of the first and second substances,
in this embodiment, the central processing module is a core of the entire system, and can achieve data acquisition, data comprehensive analysis, calculation, and issue an early warning command in a very short time. The information transmission unit III is connected with the information transmission unit II and receives the speed information and the distance information from the information transmission unit II, and the intervention module judges the pre-overtaking state through judging the speed information and the distance information.
The central processing module is mainly a data calculation unit, and adopts an MCS-51 singlechip as a processor, which is a singlechip 8 with wider application and simpler design. The data computing unit receives information through an IO interface, carries out comprehensive analysis to judge which overtaking state a vehicle belongs to, and the central unit sends an early warning command to the intervention module to carry out early warning.
The speed acquisition module comprises a speed acquisition unit and an information transmission unit I, the speed acquisition module uses a Hall element as a wheel speed sensor, adopts magnetic induction intensity as an input signal, generates Hall potential pulses along with the change of wheel speed through the magnetic induction intensity, and outputs pulse sequences outwards after the Hall potential pulses are amplified, shaped and amplified in the Hall inheritance circuit so as to finish speed acquisition and transmission work.
The distance acquisition module comprises a radar ranging unit and an information transmission unit II, the radar ranging unit measures the distance between the vehicle and the front vehicle on the same lane through a radar and provides a measured signal to the information transmission unit II, and the information transmission unit II transmits distance information obtained through radar measurement to the information transmission unit III through a wireless transmission mode.
The device installs the laser radar of high accuracy in the place ahead of vehicle, and laser radar measuring range is far away, and scanning speed is fast, the target that detects the motion that can be fine.
In the embodiment, the laser radar installed in front of the vehicle A emits a laser beam from the inside, the receiving feedback position is the front end bumper of the vehicle B, when the laser beam meets the front end bumper of the vehicle, the laser beam returns and is received, and then the distance between the vehicle and the front vehicle is determined according to the receiving time difference between the laser beam and the front end bumper.
The information transmission module III transmits and stores information to the remote intelligent traffic cloud platform in a digital signal mode, the platform records data in each driving process, and then the driving speed and the overtaking speed which are suitable on the expressway are calculated through big data analysis. The intelligent traffic cloud platform is an app application, and has the functions of deeply mining traffic and transportation related data by building a real-time dynamic information service system, forming a problem analysis model, realizing the improvement of industry resource configuration optimization capacity, public decision-making capacity, industry management capacity and public service capacity, promoting safer, more efficient, more convenient, more economic, more environment-friendly and more comfortable operation and development of traffic and transportation, and driving the transformation and upgrading of traffic and transportation related industries. Through the speed, distance and other related information acquired in real time, strong evidence is provided for illegal behaviors, so that related management personnel can conveniently determine responsibility according to traffic laws and regulations, and the time for solving problems such as traffic accidents is shortened.
Referring to the description figure 3 intervention unit workflow diagram,
the intervention unit is an important component of the expressway overtaking prompt and psychological intervention device and is an output part of the device. The LED alarm lamp mainly comprises two parts, namely an LED alarm lamp and a voice prompter. The intervention unit judges the overtaking safety state and the overtaking dangerous state of the A vehicle. The criteria are as follows:
data are observed through the vehicle-mounted camera, then the data are transmitted to the central processing unit, the data are compared with the actual vehicle speed, if the vehicle speed on the traffic lane exceeds 100 kilometers per hour, and the distance between the vehicle speed on the traffic lane and the vehicle in front of the same lane is kept to be more than 100 meters, the vehicle is in a overtaking safe state, the overtaking safe green light is on, the vehicle on the overtaking lane is prompted to prepare for overtaking and the vehicle on the traffic lane is carefully driven; the overtaking vehicle is driven carefully to prompt safe overtaking. When a driving vehicle runs on a highway, the driving speed marked on the traffic sign cannot be exceeded, if the driving speed is exceeded, the speed of the vehicle on a traffic lane is lower than 100 kilometers per hour, and the minimum distance between the driving vehicle and a vehicle ahead on the same lane is less than 50 meters, the driving vehicle is in a overtaking dangerous state, an overtaking dangerous red light is lightened, and the overtaking vehicle advises the vehicle owner to give up overtaking and wait for a moment; and acquiring the speed of the vehicle on the passing lane in real time based on wireless communication, and prompting the vehicle to accelerate if the speed is lower than a specified speed.
In this embodiment, the vehicle-mounted camera can detect information on the roadside traffic sign, and then transmit the information to the central processing unit, and compare the information with the actual vehicle speed to judge the overtaking state.
Referring to the description and to figure 4 of the drawings which illustrate a simulation of the present invention for a cut-in scenario,
suppose two vehicles on an ascending lane and a passing lane of a highway, namely a vehicle A and a vehicle B, are separated by S meters and V at a certain timeA、VBThe speeds of the vehicle A and the vehicle B are respectively. When the A vehicle system works, firstly, the speed sensor unit and the radar ranging unit of the A vehicle measure the speed and distance information of the A vehicle, and the information obtained by measurement is transmitted to the information transmission part I through the interfaces respectivelyAAnd an information transfer section IIAAt the moment, the information transmission part analyzes the information measured by the sensor to obtain the speed and the distance of the vehicle A; then information transfer section IAInformation transfer section IIAAnd an information transmitting section IIIAForming a wireless network, and transmitting the analyzed speed and distance to an information transmission part III through the formed wireless networkAStored in the chip and continuously updated.
The system of the vehicle B works as the vehicle A, but only obtains the speed of the vehicle B, stores the speed in the chip and continuously updates the speed. A, B when two vehicles are close to each other and wireless communication is possible, information transmitting section IIIAAnd an information transmission section IIIBThe communication is performed, exchanging A, B the speed information and distance information of the two vehicles, stored in the chip, and continuously updated. A. B two-vehicle intervention part reading chipThe speed and the distance of the vehicle A are exchanged through wireless communication to obtain the speed of another vehicle, then judgment is carried out, when the vehicle A can safely overtake after the judgment, the vehicle A is prompted to overtake safely and drive carefully, and the vehicle B is prompted to prepare for overtaking and drive carefully; if the vehicle A cannot complete overtaking at the moment after judgment, overtaking danger early warning and psychological intervention are carried out on the vehicle A, overtaking and waiting time are prompted, and accelerated driving is prompted on the basis of the speed of the vehicle B acquired in real time if the driving speed of the vehicle B is lower than a specified value.
The embodiment also provides another overtaking prompting and psychological intervention method of the expressway overtaking prompting and psychological intervention device based on wireless communication, which comprises the following steps of:
step one, acquiring the current speed of the vehicle A and the distance information between the vehicle A and a vehicle in front of the same lane.
Receiving the speed information and the distance information, and judging a pre-overtaking state according to the speed information and the distance information to obtain a judgment result;
and thirdly, carrying out early warning intervention prompt according to the judgment result.
In one embodiment, when the distance between the A vehicle and the B vehicle is close to enable wireless communication, wireless information interaction is conducted simultaneously, the interaction content comprises A, B vehicle speed information and A, B vehicle distance information, and the A vehicle pre-overtaking state judgment is conducted according to the current A vehicle speed information, A, B vehicle distance information and B vehicle speed information.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A device for prompting the overtaking of a highway and psychology intervention is characterized by being arranged on a vehicle A and comprising a speed acquisition module, a distance acquisition module, a central processing module and an intervention module; wherein the content of the first and second substances,
the speed acquisition module is used for measuring the speed of the current vehicle A and transmitting the measured speed information to the central processing module;
the distance acquisition module is used for measuring the distance information between the vehicle and the front vehicle in the same lane and transmitting the measured distance information to the central processing module;
and the central processing module judges the pre-overtaking state of the received speed information and distance information to obtain a judgment result and sends the judgment result to the intervention module for early warning intervention prompt.
2. The device as claimed in claim 1, wherein the central processing module is further connected to a message transmission unit iii.
3. The device for prompting the passing of the highway and psychologically intervening according to claim 2, wherein the speed acquisition module comprises a speed sensor unit and an information transmission unit I; wherein the content of the first and second substances,
the speed acquisition module measures speed information of the current vehicle A through a speed sensor and sends the speed information to an information transmission unit I;
the information transmission unit I transmits speed information obtained by measurement of the speed sensor unit to the information transmission unit III in a wireless transmission mode, and the information transmission unit III receives the speed information and the distance information from the speed acquisition module and the distance acquisition module.
4. The device for prompting the passing of the highway and psychologically intervening according to claim 2, wherein the distance acquisition module comprises a radar ranging unit and an information transmission unit II; wherein the content of the first and second substances,
the distance acquisition module measures the distance between the current vehicle A and the vehicle ahead on the same lane through a radar and provides measured distance information to the information transmission unit II;
and the information transmission unit II transmits the distance information obtained by radar measurement to the information transmission unit III in a wireless transmission mode.
5. The device for prompting and psychologically intervening on overtaking on a highway according to claim 1, wherein the intervening module comprises an audible and visual alarm device, and the audible and visual alarm device respectively executes different prompting operations according to different judgment results of the state of overtaking in advance.
6. The device of claim 2, wherein the information transmission unit III of the vehicle A wirelessly interacts with the information transmission unit III of the vehicle B, and the interaction content comprises the speed information and distance information of the vehicle A and the vehicle B.
7. A method for prompting passing and psychological intervention of a device for prompting passing on a highway according to any one of claims 1-6, comprising the steps of:
step one, acquiring the current speed of a vehicle A and distance information between the vehicle A and a vehicle in front of the same lane;
receiving the speed information and the distance information, and judging a pre-overtaking state according to the speed information and the distance information to obtain a judgment result;
and thirdly, carrying out early warning intervention prompt according to the judgment result.
8. The method according to claim 7, wherein the first step further comprises system on-off control conditions:
the starting condition is as follows: when the left turn light is turned on, the device starts to work;
and (3) closing conditions: and after the overtaking is finished, the left steering lamp is turned off, and the device is turned off.
9. The method according to claim 7, wherein said second step further comprises: and performing wireless interaction with the vehicle B, wherein the interactive content comprises the speed information and the distance information of the vehicle A and the vehicle B, and the pre-overtaking state judgment of the vehicle A is performed according to the current speed information of the vehicle A, the current distance information between the vehicle A and the vehicle A, B, and the speed information and the distance information of the vehicle B.
10. The method according to claim 9, wherein the information interaction step has a trigger condition, comprising: and when the distance between the A vehicle and the B vehicle reaches the information interaction range, exchanging the speed information and the distance information of the two vehicles.
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