CN110979177A - Motor vehicle rear-end collision prevention prompting method and system and motor vehicle - Google Patents
Motor vehicle rear-end collision prevention prompting method and system and motor vehicle Download PDFInfo
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- CN110979177A CN110979177A CN201911289474.1A CN201911289474A CN110979177A CN 110979177 A CN110979177 A CN 110979177A CN 201911289474 A CN201911289474 A CN 201911289474A CN 110979177 A CN110979177 A CN 110979177A
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- vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
Abstract
The invention discloses a motor vehicle rear-end collision prevention prompting method, which comprises the following steps: acquiring the speed of the vehicle; acquiring the surrounding environment of the vehicle; outputting an early warning control signal according to the vehicle speed and the surrounding environment; and outputting a rear-end collision early warning prompt according to the early warning control signal. According to the invention, by acquiring the vehicle speed and the surrounding environment information and outputting the rear-end collision early warning prompt according to the vehicle speed and the surrounding environment information, the vehicle can not only acquire the rear-end collision early warning prompt through the front vehicle brake lamp, but also acquire the rear-end collision early warning prompt from the vehicle to perform rear-end collision early warning, so that the rear-end collision prevention effect of the early warning prompt is further improved. The invention also discloses a rear-end collision prevention prompt system for the motor vehicle and the motor vehicle.
Description
Technical Field
The invention relates to the technical field of motor vehicle safety, in particular to a motor vehicle rear-end collision prevention prompting method and system and a motor vehicle.
Background
At present, the holding quantity of automobiles is continuously increased, wherein private automobiles are increased in geometric figures, the traffic safety accidents are increased exponentially due to the increase of the number of global automobiles, and according to the statistics of 2018 by the world health organization, the number of people died due to the traffic accidents every year in the world is over 250 thousands of people; and analyzing the types of the traffic accidents, wherein the types of the traffic accidents are mainly rear-end collision accidents. The study of scholars shows that more than half of rear-end accidents can be prevented, the driver can brake in advance by means of early warning prompt, and the number of the rear-end accidents can be reduced by 62%.
The conventional rear-end collision prevention system can only acquire a rear-end collision early warning prompt through a front vehicle rear brake lamp, so that the early warning prompt is influenced and the accident prevention effect is achieved.
Disclosure of Invention
The invention provides a method and a system for prompting rear-end collision prevention of a motor vehicle and the motor vehicle based on the problems.
In view of the above, the invention provides a method for prompting rear-end collision prevention of a motor vehicle, which comprises the following steps:
acquiring the speed of the vehicle;
acquiring the surrounding environment of the vehicle;
outputting an early warning control signal according to the vehicle speed and the surrounding environment;
and outputting a rear-end collision early warning prompt according to the early warning control signal.
The invention also discloses a rear-end collision prevention prompt system for the motor vehicle, which comprises,
vehicle speed obtaining means for obtaining a vehicle speed;
a surrounding environment acquisition device for acquiring a surrounding environment of the vehicle;
the control device is used for outputting an early warning control signal according to the vehicle speed and the surrounding environment;
and the early warning prompting device is used for outputting early warning prompts according to the early warning control signals.
The invention also discloses a motor vehicle, which comprises the motor vehicle rear-end collision prevention prompt system of the technical scheme
The invention has the beneficial effects that: by acquiring the vehicle speed and the surrounding environment information and outputting the rear-end collision early warning prompt according to the vehicle speed and the surrounding environment information, the vehicle can not acquire the rear-end collision early warning prompt through a front vehicle brake lamp, and can also acquire the rear-end collision early warning prompt from the vehicle to perform rear-end collision early warning, so that the rear-end collision prevention effect of the early warning prompt is further improved.
Drawings
FIG. 1 is a flow chart illustrating a method for prompting rear-end collision prevention of a motor vehicle according to an embodiment of the invention;
fig. 2 is a block diagram illustrating a rear-end collision prevention prompt system for a motor vehicle according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the features of the embodiments of the present invention, i.e., the embodiments, may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 shows a flow chart of a method for prompting rear-end collision prevention of a motor vehicle according to an embodiment of the invention.
As shown in fig. 1, in this embodiment, a method for prompting rear-end collision prevention of a motor vehicle includes the following steps:
acquiring the speed of the vehicle;
acquiring the surrounding environment of the vehicle;
outputting an early warning control signal according to the vehicle speed and the surrounding environment;
and outputting a rear-end collision early warning prompt according to the early warning control signal.
Under general conditions, a driver can only obtain the rear-end collision early warning prompt of the front vehicle brake through a front vehicle brake lamp, the obtained prompt information is less, and the early warning and rear-end collision prevention effect is influenced.
It is understood that the risk of rear-end collision of the vehicle is highly correlated with the current driving speed of the vehicle and the surrounding environment of the vehicle (e.g., whether there is a vehicle in front of or behind the vehicle, etc.), and in this embodiment, when it is determined that the risk of rear-end collision is large based on the speed and the surrounding environment, a rear-end collision prompt is output.
In the above embodiment, by acquiring the vehicle speed and the surrounding environment information and outputting the rear-end collision early warning prompt according to the vehicle speed and the surrounding environment information, the vehicle can not only acquire the rear-end collision early warning prompt through the front brake lamp, but also acquire the rear-end collision early warning prompt from the vehicle to perform rear-end collision early warning, so that the rear-end collision prevention effect of the early warning prompt is further improved.
Optionally, the obtaining the surrounding environment of the vehicle comprises,
acquiring a front vehicle distance and/or a rear vehicle distance;
the outputting of the early warning control signal according to the vehicle speed and the surrounding environment includes,
determining a safe distance according to safe distance influence factors, wherein the safe distance influence factors comprise vehicle speed;
and outputting an early warning control signal when the distance between the front vehicle and/or the rear vehicle is less than the safe distance.
It should be noted that the vehicle speed and the braking distance of the vehicle are in a proportional relationship, and the safe distance between the vehicles can be determined according to the vehicle speed. The proportional relationship may be pre-measured or obtained from empirical data. Such as a vehicle traveling on a highway at 100 km/h, the safe distance may be 100 meters.
The distance between the vehicle and the front and rear vehicles can be measured through the ranging radar, when the measured distance between the vehicle and the front and rear vehicles is smaller than the safety distance, the rear-end collision risk is indicated, and an early warning control signal is output.
In the embodiment, the rear-end collision risk early warning judgment is carried out by acquiring the vehicle speed and the distance between the vehicle and the front vehicle and/or the distance between the vehicle and the rear vehicle, the early warning control signal is output, and the driving safety is improved.
Optionally, the acquiring the surrounding environment of the vehicle further comprises,
acquiring a front view image and/or a rear view image;
the determining of the safe distance according to the safe distance influencing factors comprises,
determining the state of the road surface according to the front view image and/or the rear view image;
and determining the safe distance according to the vehicle speed and the road surface state, wherein the safe distance influence factors further comprise the road surface state.
It will be appreciated that different road conditions will directly affect the braking distance and the safety distance, e.g. wet road, snow and ice road, will increase significantly.
Determining the road surface state according to the front view image and/or the rear view image can be realized by the existing image recognition algorithm.
In the embodiment, the accuracy and the sensitivity of rear-end collision early warning are improved by acquiring the front-view image and/or the rear-view image, then acquiring the road surface state and combining the road surface state to more finely determine the safety distance.
Optionally, said determining said safe distance based on said vehicle speed and road surface condition comprises,
determining a first safety distance according to the vehicle speed;
determining a first adjustment coefficient according to the road surface state;
and calculating and determining the safe distance, wherein the safe distance is the first safe distance (1+ the first adjusting coefficient).
The corresponding table of the road surface state and the first adjustment coefficient can be obtained by adopting a mode of pre-testing or utilizing empirical data, and the first adjustment coefficient is determined by a query mode according to the corresponding table. For example, in rainy weather, the adjustment coefficient may be determined to be 30% and in snowy weather, the adjustment coefficient may be determined to be 50%.
Optionally, determining the safe distance according to the safe distance influencing factor comprises,
determining a forward vehicle state according to a forward vehicle image, wherein the forward vehicle image comprises a forward vehicle image;
and determining the safe distance according to the state of the front vehicle, the vehicle speed and the road surface state, wherein the influence factors of the safe distance also comprise the state of the front vehicle.
It will be appreciated that when the vehicle is currently braking, its tail light will illuminate. The existing image recognition technology can be utilized to judge whether the front vehicle is in a braking state or not through the image of the front vehicle.
The above-mentioned front vehicle state is that whether the front vehicle is in the brake state.
In the above embodiment, through obtaining the preceding car image, consider the brake state of preceding car to adjust safe distance, and carry out rear-end collision early warning suggestion according to safe distance, further improve the precision of rear-end collision early warning suggestion.
Optionally, said determining said safe distance based on said preceding vehicle condition, vehicle speed and road surface condition comprises,
determining a first safety distance according to the vehicle speed;
determining a first adjustment coefficient according to the road surface state;
determining a second adjustment coefficient according to the state of the front vehicle;
and calculating and determining the safe distance, wherein the safe distance is the first safe distance (1+ the first adjusting coefficient + the second adjusting coefficient).
When the front vehicle brakes, the safety distance should be further increased to avoid the risk of rear-end collision. The adjustment coefficient may be determined to be between 20% and 30% when braking, and 0 when not braking.
Optionally, the outputting a rear-end collision early warning prompt according to the early warning control signal comprises,
outputting an early warning prompt tone according to the early warning control signal;
and/or carrying out visual display early warning according to the early warning control signal.
The early warning prompt tone is output, the early warning prompt tone can be realized through sound playing equipment or the existing vehicle-mounted sound system of the vehicle, and a voice playing mode can be adopted. The visual display early warning can be realized by arranging a light-emitting prompt circuit, a display screen or a vehicle-mounted audio-video system, and the early warning can be realized by adopting a mode that the display screen flickers to display images.
In the embodiment, the driver and the passengers are prompted in a sound mode and a visual mode, so that the early warning prompting effect is further improved.
The embodiment of the invention also discloses a rear-end collision prevention prompt system for a motor vehicle, which is shown in figure 2 and comprises,
vehicle speed obtaining means for obtaining a vehicle speed;
a surrounding environment acquisition device for acquiring a surrounding environment of the vehicle;
the control device is used for outputting an early warning control signal according to the vehicle speed and the surrounding environment;
and the early warning prompting device is used for outputting early warning prompts according to the early warning control signals.
The vehicle speed acquisition device can be realized by adopting a vehicle-mounted control system VCU, the vehicle speed can be acquired through the vehicle-mounted control system VCU, and the vehicle speed can also be acquired through installing a linear speed sensor on a wheel driving shaft.
The peripheral environment acquisition device can be realized by adopting equipment such as a camera, a distance meter and the like.
The control device can be realized by adopting the existing VCU (vehicle-mounted control unit) and can also be realized by utilizing intelligent controllers such as a single chip microcomputer and a PLC (programmable logic controller).
The early warning prompting device can be realized by adopting the existing acousto-optic prompting circuit or a vehicle-mounted audio-visual system.
Optionally, the ambient environment acquisition device includes,
the front vehicle radar and/or the rear vehicle radar are used for acquiring a front vehicle distance and/or a rear vehicle distance;
the control module device comprises a control module,
the safety distance determining module is used for determining a safety distance according to safety distance influence factors, wherein the safety distance influence factors comprise vehicle speed;
and the early warning control signal output module is used for outputting an early warning control signal when the distance between the front vehicle and/or the rear vehicle is less than the safety distance.
The front car radar can be installed in bonnet air outlet face the place ahead, and the rear car radar mountable is in the rear of the vehicle face backward, all chooses range radar for use.
The surrounding environment acquisition device also comprises a peripheral environment acquisition device,
the front-view camera and/or the rear-view camera are used for acquiring a front-view image and/or a rear-view image, and the surrounding environment of the vehicle comprises the front-view image and/or the rear-view image;
the safe distance determination module is, in particular,
determining the state of the road surface according to the front view image and/or the rear view image;
and determining the safe distance according to the vehicle speed and the road surface state, wherein the safe distance influence factors further comprise the road surface state.
The front-view camera can be arranged above the middle part of the front windshield; the rear-view camera can be arranged in the center of the rear license plate.
The safe distance determination module is further specifically configured to,
determining a forward vehicle state according to a forward vehicle image, wherein the forward vehicle image comprises a forward vehicle image;
and determining the safe distance according to the state of the front vehicle, the vehicle speed and the road surface state, wherein the influence factors of the safe distance also comprise the state of the front vehicle.
The early warning prompting module comprises a plurality of modules,
the sound prompting device is used for outputting early warning prompting sound according to the early warning control signal;
and/or the presence of a gas in the gas,
and the visual prompting device is used for carrying out visual display early warning according to the early warning control signal.
The sound prompting device can be used for playing the sound through sound playing equipment and a buzzer; or the existing vehicle audio system of the vehicle.
The visual prompting device can be realized by arranging a luminous prompting circuit, a display screen or a vehicle-mounted audio-video system, and can remind a user by flashing a display image.
The embodiment of the invention discloses a motor vehicle, which comprises the motor vehicle rear-end collision prevention system in any embodiment of the scheme.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for prompting rear-end collision prevention of a motor vehicle is characterized by comprising the following steps:
acquiring the speed of the vehicle;
acquiring the surrounding environment of the vehicle;
outputting an early warning control signal according to the vehicle speed and the surrounding environment;
and outputting a rear-end collision early warning prompt according to the early warning control signal.
2. The method according to claim 1, wherein the vehicle is a rear-end collision prevention vehicle,
the method for acquiring the surrounding environment of the vehicle comprises the following steps,
acquiring a front vehicle distance and/or a rear vehicle distance;
the outputting of the early warning control signal according to the vehicle speed and the surrounding environment includes,
determining a safe distance according to safe distance influence factors, wherein the safe distance influence factors comprise vehicle speed;
and outputting an early warning control signal when the distance between the front vehicle and/or the rear vehicle is less than the safe distance.
3. The method according to claim 2, wherein the vehicle is provided with a rear-end collision prevention prompt,
the method for acquiring the surrounding environment of the vehicle further comprises the steps of,
acquiring a front view image and/or a rear view image;
the determining of the safe distance according to the safe distance influencing factors comprises,
determining the state of the road surface according to the front view image and/or the rear view image;
and determining the safe distance according to the vehicle speed and the road surface state, wherein the safe distance influence factors further comprise the road surface state.
4. The method according to claim 3, wherein the vehicle is a rear-end collision prevention vehicle,
the determining the safe distance according to the vehicle speed and the road surface state includes,
determining a first safety distance according to the vehicle speed;
determining a first adjustment coefficient according to the road surface state;
and calculating and determining the safe distance, wherein the safe distance is the first safe distance (1+ the first adjusting coefficient).
5. The method according to claim 3, wherein the vehicle is a rear-end collision prevention vehicle,
the determining of the safe distance according to the safe distance influencing factors comprises,
determining a forward vehicle state according to a forward vehicle image, wherein the forward vehicle image comprises a forward vehicle image;
and determining the safe distance according to the state of the front vehicle, the vehicle speed and the road surface state, wherein the influence factors of the safe distance also comprise the state of the front vehicle.
6. The method according to claim 5, wherein the vehicle is characterized in that,
said determining said safe distance based on said preceding vehicle condition, vehicle speed and road surface condition, comprising,
determining a first safety distance according to the vehicle speed;
determining a first adjustment coefficient according to the road surface state;
determining a second adjustment coefficient according to the state of the front vehicle;
and calculating and determining the safe distance, wherein the safe distance is the first safe distance (1+ the first adjusting coefficient + the second adjusting coefficient).
7. The method according to any one of claims 1 to 6, wherein the vehicle is provided with a rear-end collision prevention prompt,
the outputting of the rear-end collision early warning prompt according to the early warning control signal comprises,
outputting an early warning prompt tone according to the early warning control signal;
and/or carrying out visual display early warning according to the early warning control signal.
8. A rear-end collision prevention prompt system for a motor vehicle is characterized by comprising,
vehicle speed obtaining means for obtaining a vehicle speed;
a surrounding environment acquisition device for acquiring a surrounding environment of the vehicle;
the control device is used for outputting an early warning control signal according to the vehicle speed and the surrounding environment;
and the early warning prompting device is used for outputting early warning prompts according to the early warning control signals.
9. The rear-end collision prevention prompt system for a motor vehicle according to claim 8,
the surrounding environment acquisition device comprises a peripheral environment acquisition device,
the front vehicle radar and/or the rear vehicle radar are used for acquiring a front vehicle distance and/or a rear vehicle distance;
the control device comprises a control device and a control device,
the safety distance determining module is used for determining a safety distance according to safety distance influence factors, wherein the safety distance influence factors comprise vehicle speed;
and the early warning control signal output module is used for outputting an early warning control signal when the distance between the front vehicle and/or the rear vehicle is less than the safety distance.
10. A motor vehicle comprising a motor vehicle rear-end collision avoidance system according to any one of claims 8 to 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114572330A (en) * | 2022-02-22 | 2022-06-03 | 深圳飞亮智能科技有限公司 | Electric motor car intelligence vehicle mounted terminal based on millimeter wave radar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202896403U (en) * | 2012-08-31 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile rear-end collision warning device |
| CN106297409A (en) * | 2016-08-16 | 2017-01-04 | 广州小鹏汽车科技有限公司 | A kind of Intelligent traffic safety device and its implementation |
| CN106314428A (en) * | 2016-09-14 | 2017-01-11 | 中国科学院微电子研究所 | Collision avoidance system, collision avoidance method and motor vehicle |
| CN106383351A (en) * | 2016-10-21 | 2017-02-08 | 苏州工业职业技术学院 | Ultrasonic intelligent ranging alarm system, rear end collision prevention method, and overtaking side direction collision prevention method |
| CN108891350A (en) * | 2018-07-27 | 2018-11-27 | 武汉理工大学 | A kind of rear-end collision prevention early warning system and method based on front truck operator brake habit |
-
2019
- 2019-12-13 CN CN201911289474.1A patent/CN110979177A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202896403U (en) * | 2012-08-31 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile rear-end collision warning device |
| CN106297409A (en) * | 2016-08-16 | 2017-01-04 | 广州小鹏汽车科技有限公司 | A kind of Intelligent traffic safety device and its implementation |
| CN106314428A (en) * | 2016-09-14 | 2017-01-11 | 中国科学院微电子研究所 | Collision avoidance system, collision avoidance method and motor vehicle |
| CN106383351A (en) * | 2016-10-21 | 2017-02-08 | 苏州工业职业技术学院 | Ultrasonic intelligent ranging alarm system, rear end collision prevention method, and overtaking side direction collision prevention method |
| CN108891350A (en) * | 2018-07-27 | 2018-11-27 | 武汉理工大学 | A kind of rear-end collision prevention early warning system and method based on front truck operator brake habit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114572330A (en) * | 2022-02-22 | 2022-06-03 | 深圳飞亮智能科技有限公司 | Electric motor car intelligence vehicle mounted terminal based on millimeter wave radar |
| CN114572330B (en) * | 2022-02-22 | 2024-03-08 | 深圳飞亮智能科技有限公司 | Electric vehicle intelligent vehicle-mounted terminal based on millimeter wave radar |
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Application publication date: 20200410 |