CN111383451A - Overtaking detection and early warning device - Google Patents

Overtaking detection and early warning device Download PDF

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Publication number
CN111383451A
CN111383451A CN201811654337.9A CN201811654337A CN111383451A CN 111383451 A CN111383451 A CN 111383451A CN 201811654337 A CN201811654337 A CN 201811654337A CN 111383451 A CN111383451 A CN 111383451A
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overtaking
information
unit
early warning
distance
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徐文鑫
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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
    • G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/24—Reminder alarms, e.g. anti-loss alarms
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

The invention relates to the technical field of traffic, in particular to a overtaking detection and early warning device which comprises an overtaking intention detection unit (1), an information transceiving unit (2), an information processing unit (3) and an early warning unit (4). The device adopts Wi-Fi to realize car communication, collects vehicle state information on every side, combines self vehicle state information, sends to Arduino analysis and processing, and the analysis result feeds back to the overtaking driver with the mode of vision and sense of hearing, simultaneously, based on initiative safe consideration, the device also will provide safety warning to being overtaking driver, and this helps being made timely, appropriate driving action by the overtaking car owner, promotes car owner's attention, keeps suitable speed of a motor vehicle and vehicle distance, improves the security of driving. The device can also transmit related information to the cloud, and the collected big data can be used for carrying out overtaking behavior analysis and predicting overtaking accidents through a big data analysis method.

Description

Overtaking detection and early warning device
Technical Field
The invention relates to the technical field of traffic, in particular to a overtaking detection and early warning device.
Background
The overtaking auxiliary device in the technical field existing at home and abroad at present has a plurality of problems: firstly, the current overtaking auxiliary device is expensive in cost and difficult to maintain, so most of the technologies only stay in the experimental stage, and the development of the technical achievements needs higher economic cost; secondly, the existing overtaking auxiliary device adopts few vehicle-to-vehicle communication modes, only aims at overtaking vehicle owners, ignores dangers existing in the overtaking process of overtaking vehicle owners, and greatly reduces the probability of traffic accidents if attention can be paid to the driving problems of overtakers in actual life; third, the current research does not effectively utilize the data collected by the overtaking early warning equipment to perform big data analysis.
Disclosure of Invention
The invention aims to provide an overtaking early warning device which can detect overtaking willingness and give an overtaking owner prompt to people, meanwhile, based on the idea of active safety, the device can give an early warning to the overtaking owner, and the overtaking information acquired by people is uploaded, so that the overtaking behavior is analyzed and the overtaking accident is predicted by using a big data analysis method.
The technical solution for realizing the purpose of the invention is as follows: a device for detecting and early warning overtaking comprises an overtaking intention detecting unit 1, an information receiving and sending unit 2, an information processing unit 3 and an early warning unit 4.
The overtaking intention detection unit 1 adopts a GPS positioning mode and is used for acquiring the overtaking intention of the overtaking owner.
The information receiving and sending unit 2 comprises a GPS positioning module and a Wi-Fi wireless communication module and is used for receiving and sending information including speed, distance between two vehicles, position and the like of the overtaking vehicle and the overtaken vehicle.
Information processing unit 3 adopts Arduino core processor, and the person of being convenient for carries out secondary development.
The early warning unit 4 is an LED lamp and a buzzer lamp reminding action device and reminds a car owner in a sound mode, a light mode and the like.
To better understand the overtaking process, consider the vehicle operating characteristics, FIG. 2 is a two-way track overtaking model established for the present invention.
The overtaking intention detection unit 1: from the modeling point of view, the overtaking is simply divided into two forms of constant-speed overtaking and accelerating overtaking, and other overtaking behaviors can be regarded as combination of the two forms.
1. Constant speed overtaking model
As shown in fig. 3, we can list the system of equations as shown below:
Figure BSA0000176912040000011
get it solved
Figure BSA0000176912040000012
Wherein: a from A1To A4The elapsed time is t; the time spent in the whole overtaking process is t; the distance traveled by A is S1+S2+S3(ii) a B is the distance S5(ii) a C the distance traveled is S7；S4The minimum safety distance which must be ensured between A and B before overtaking; s6The minimum safety distance which must be ensured between A and B after exceeding; s8Prepare a to complete overtaking, must guarantee the minimum safe distance with C.
B always keeps a constant forward state, and Vb＞VaThe distance between A and B is less than or equal to SEtc. ofI.e. the minimum safe distance between two vehicles, it can be judged that B has the intention to overtake.
2. Acceleration overtaking model
The accelerated overtaking process means that certain acceleration is provided by overtaking vehicles in the overtaking process so that the speed of the overtaking vehicles is higher than that of the overtaken vehicles, and the whole overtaking process comprises a constant-speed driving process and an accelerated overtaking process. Fig. 4 is a schematic diagram of the acceleration overtaking safety distance.
As shown in fig. 4, we can list the system of equations as shown below:
Figure BSA0000176912040000021
get it solved
Figure BSA0000176912040000022
Wherein
Figure BSA0000176912040000023
Figure BSA0000176912040000024
Wherein: the overtaking safety distance in the process of accelerating overtaking is set as SAdding(ii) a The speed when overtaking A for overtaking is Va(ii) a Acceleration travel time ta(ii) a The constant speed running time is ty(ii) a The speed of the overtaken B and the speed of the opposite vehicle C are respectively V in the whole overtaking processbAnd VcThe distance traveled is S5And S7；S4、S6And S8As in the constant velocity overtaking model.
S6From speed V of overtaken car BbAnd determining that the running condition is concrete and asphalt, the speed is 20m when the speed is 0-120km/h, and the speed is 25m when the speed is more than 120 km/h.
In this case, V is initially presentb＜VaHowever, when the vehicle A is about to overtake, the vehicle A is accelerated properly, the vehicle A is accelerated for a period of time to exceed the vehicle B, and then the vehicle A is kept at a certain speed to drive forwards at a constant speed. When the distance between the two vehicles is measured to be less than or equal to SAddingI.e. the minimum safe distance between two vehicles, it can be judged that A has the intention of overtaking.
The information receiving and transmitting unit also adopts a GPS positioning mode, compared with the traditional distance measurement method, the GPS positioning has the advantages of wide distance measurement range, high precision, strong reliability and the like, and the measured longitude and latitude of A, B two vehicles are respectively assumed to be (α)A，βA) And (α)B，βB) Then, the distance between the two vehicles is:
Figure BSA0000176912040000025
after the actual distance between the two vehicles is measured, the obtained distance information is transmitted to A, B vehicle owners through the Wi-Fi wireless communication technology, so that the drivers can conveniently obtain the driving information of the vehicles in time.
The information processing device adopted by the information processing unit 3 is an Arduino core processor, the Arduino platform is an open source hardware platform based on an AVR single-chip, the Arduino development environment carries out secondary compiling and packaging on an AVR programming library, and a user can easily realize secondary development on the Arduino.
The early warning device is a warning device such as an LED lamp and a buzzer. According to a large amount of data statistics, the safety level distance S in the inventionSecurityThe values are as follows: sSecurityThe risk level distance is more than or equal to 100m and is: s is more than or equal to 50mRisksLess than 100m, the dangerous level distance value is as follows: sDanger ofIs less than 50 m. When the distance between the two vehicles is measured to be the safe distance, the green light is turned on; when the distance between the two vehicles is measured to be the risk distance, the red light is turned on; when the distance between the two vehicles is determined to be a dangerous distance, the red light is turned on, and the buzzer gives an alarm sound.
Then, as shown in fig. 5, it is judged whether or not the overtaking can be completed according to the following flowchart.
Step 1, acquiring the overtaking intention of a vehicle owner through an overtaking intention detection unit;
step 2, broadcasting the overtaking intention through a Wi-Fi element in the information receiving and sending unit, acquiring information of a vehicle and surrounding vehicles by using a GPS element, and providing the information of the overtaking vehicles for a driver of the vehicle receiving the overtaking intention broadcasting information;
step 3, Arduino processes the acquired information, judges whether the vehicle can safely overtake and feeds back the information to an early warning unit;
step 4, the early warning unit gives a reminder to the vehicle owner through devices such as an LED lamp and a buzzer lamp;
step 5, if the overtaking vehicle owner does not see the overtaking early warning, transmitting the early warning information to the front vehicle driver through the Wi-Fi element so as to ensure that the front vehicle driver can avoid danger;
and 6, the information receiving and transmitting unit uploads the relevant information of the overtaking to a remote server to provide a data source for big data analysis.
According to the invention, the GPS and Wi-Fi modules are added to a single vehicle, namely a overtaking vehicle, so that all vehicle devices can realize the internet of vehicles, early warning can be given to an overtaking driver in advance, and the driver is assisted to overtake safely. Compared with the prior art, the invention is small, exquisite, convenient and low in cost price, and can be installed at a plurality of positions in a vehicle. Meanwhile, the driving safety idea is applied to the overtaking process, so that the overtaking reminding device can remind the overtaken, can greatly assist the driver to identify the overtaking, can take corresponding measures for different overtaking conditions, and can avoid traffic accidents to a great extent. Besides, the shared information can be used for big data processing or be managed by a traffic management department.
Drawings
FIG. 1 is a schematic view of a device for detecting and warning overtaking in accordance with the present invention;
wherein 1 is GPS location range finding detection intention of overtaking, 2 is the information receiver that Wi-Fi communication device and GPS positioner constitute, 3 is Arduino information processor, and 4 is the early warning unit that warning effect devices such as LED lamp, bee calling organ constitute.
FIG. 2 is a schematic view of a two-way rail overtaking model of the present invention;
FIG. 3 is a schematic view of a constant velocity overtaking model;
FIG. 4 is a schematic view of an accelerated overtaking model;
fig. 5 is a flow chart of the operation of the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
The invention relates to a overtaking detection and early warning device, which comprises an overtaking intention detection unit 1, an information receiving and sending unit 2, an information processing unit 3 and an early warning unit 4.
1. The overtaking intention detection unit 1 adopts a GPS positioning mode, and compared with a traditional distance measurement method, the GPS positioning method has the advantages of wide distance measurement range, high precision, strong reliability and the like. Whether the distance between the two vehicles is smaller than the safe distance is measured through the GPS, and whether the rear vehicle has the overtaking intention or not is judged.
2. The information receiving and sending unit 2 comprises a GPS positioning module and a Wi-Fi wireless communication module, the overtaking intention is broadcasted through a Wi-Fi element, the information of the vehicle and the surrounding vehicles is acquired by using the GPS element, and the information of the overtaking vehicle is provided for the driver of the vehicle receiving the overtaking intention broadcast information.
3. Information processing unit 3 adopts the information processing apparatus who adopts for Arduino core processor, and Arduino platform is an open source hardware platform based on the AVR single-chip, and Arduino development environment has carried out compiling encapsulation once more to AVR's programming library, and the user also can easily realize the secondary development to Arduino.
4. The early warning unit 4 is a reminding device such as an LED lamp and a buzzer. According to a large amount of data statistics, the safety level distance S in the inventionSecurityThe values are as follows: sSecurityThe risk level distance is more than or equal to 100m and is: s is more than or equal to 50mRisksLess than 100m, the dangerous level distance value is as follows: sDanger ofIs less than 50 m. When the distance between the two vehicles is measured to be the safe distance, the green light is turned on; when the distance between the two vehicles is measured to be the risk distance, the red light is turned on; when the distance between the two vehicles is determined to be a dangerous distance, the red light is turned on, and the buzzer gives an alarm sound.
5. The working process of the device is as follows:
step 1, judging whether the vehicle owner has the overtaking intention or not by measuring whether the distance between two vehicles is smaller than the safe distance or not in a GPS positioning mode in an overtaking intention detection unit 1;
step 2, broadcasting the overtaking intention through a Wi-Fi element in the information receiving and sending unit 2, acquiring information of a vehicle and surrounding vehicles by using a GPS element, and providing the information of the overtaking vehicles for a driver of the vehicle receiving the overtaking intention broadcasting information;
step 3, Arduino processes the acquired information, judges whether the vehicle can safely overtake and feeds back the information to an early warning unit 4;
and 4, the early warning unit 4 gives a warning to the car owner through warning action devices such as an LED lamp and a buzzer lamp. Safety level distance S in the inventionSecurityThe values are as follows: sSecurityThe risk level distance is more than or equal to 100m and is: s is more than or equal to 50mRisksLess than 100m, the dangerous level distance value is as follows: sDanger ofIs less than 50 m. When the distance between the two vehicles is measured to be the safe distance, the green light is turned on; when the distance between the two vehicles is measured to be the risk distance, the red light is turned on; when measuring the distance between two vehiclesWhen the distance is a dangerous distance, the red light is lighted, and the buzzer gives an alarm sound;
step 5, if the overtaking vehicle owner does not see the overtaking early warning, transmitting the early warning information to the front vehicle driver through the Wi-Fi element so as to ensure that the front vehicle driver can avoid danger;
and 6, the information receiving and transmitting unit 2 uploads the related information of the overtaking to a remote server to provide a data source for big data analysis.
In conclusion, the invention has very wide application prospect: the system can share data resources and memorize frequent overtaking vehicles, and the overtaking vehicles are handed to the traffic management department for management, and the traffic management department can know the driving condition of each driver through the obtained big data. Meanwhile, after the data are professionally processed, the overtaking situation of the area can be better mastered, and a high-speed road section of the overtaking event can be found out; the rapidity and the predictable performance of the big data effectively improve the level of traffic prediction, comprehensively analyze the driving safety of the vehicle and effectively simulate the future running condition of traffic, thereby effectively reducing the possibility of traffic accidents; the acquired data can be sent to the driver, so that the driver can know the driving behavior of the driver and the driving level of the driver is improved. The data can also be delivered to business companies, such as insurance companies and the like, and in the current big data age, the data not only can bring social value but also can generate business value.

Claims (5)

1. The utility model provides a by detection of overtaking and early warning device which characterized in that: the system comprises a overtaking intention detection unit (1), an information transceiving unit (2), an information processing unit (3) and an early warning unit (4).
2. A device for detecting and warning overtaking as claimed in claim 1, wherein: the overtaking intention detection unit (1) adopts a GPS positioning mode, and judges whether the driver of the rear vehicle has overtaking intention or not by measuring whether the distance between the rear vehicle and the front vehicle is smaller than the safe distance or not.
3. A device for detecting and warning overtaking as claimed in claim 1, wherein: the information transceiver unit (2) comprises a GPS positioning mode and a Wi-Fi wireless communication module.
4. A device for detecting and warning overtaking as claimed in claim 1, wherein: the information processing unit (3) adopts Arduino, and Arduino platform is as core processor.
5. A device for detecting and warning overtaking as claimed in claim 1, wherein: the early warning unit (4) is a reminding device such as an LED lamp and a buzzer.
CN201811654337.9A 2018-12-29 2018-12-29 Overtaking detection and early warning device Pending CN111383451A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114927008A (en) * 2022-05-06 2022-08-19 山东汉鑫科技股份有限公司 Most economical acceleration decision method for overtaking truck by occupying overtaking lane during running process of truck on highway
DE102021213308A1 (en) 2021-11-25 2023-05-25 Volkswagen Aktiengesellschaft Method and assistance system for supporting an overtaking maneuver and motor vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021213308A1 (en) 2021-11-25 2023-05-25 Volkswagen Aktiengesellschaft Method and assistance system for supporting an overtaking maneuver and motor vehicle
CN114927008A (en) * 2022-05-06 2022-08-19 山东汉鑫科技股份有限公司 Most economical acceleration decision method for overtaking truck by occupying overtaking lane during running process of truck on highway

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Application publication date: 20200707