CN214028420U - Rear-end collision preventing system for vehicle - Google Patents
Rear-end collision preventing system for vehicle Download PDFInfo
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- CN214028420U CN214028420U CN202121654286.7U CN202121654286U CN214028420U CN 214028420 U CN214028420 U CN 214028420U CN 202121654286 U CN202121654286 U CN 202121654286U CN 214028420 U CN214028420 U CN 214028420U
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Abstract
The utility model provides a rear-end collision system is prevented to vehicle, this rear-end collision system is prevented to vehicle includes: the system comprises a rear vehicle detection module and a projection assembly which are arranged at the tail of a vehicle, a front vehicle detection module which is arranged at the head of the vehicle, and a controller which is arranged on a vehicle master console; the rear vehicle detection module and the front vehicle detection module are connected with the controller, and the projection assembly comprises a pitching driving mechanism connected with the corresponding control end of the controller and a projection module connected with the pitching driving mechanism; the rear vehicle detection module and the front vehicle detection module transmit the detected vehicle distance information to the controller; the controller sends a control instruction to the pitching driving mechanism according to the vehicle distance information, and the pitching driving mechanism drives the projection module to perform pitching adjustment according to the control instruction. The utility model discloses can make the nearer suggestion of car distance to the back car driver with the help of throwing the pencil according to the car distance information, in case the rear-end collision.
Description
Technical Field
The utility model relates to a vehicle safety technical field especially relates to a rear-end collision system is prevented to vehicle.
Background
With the generalization of vehicles, the phenomenon of rear-end collision of vehicles is gradually increased year by year, and the rear-end collision of vehicles is caused by a plurality of reasons, such as the lack of concentration of driver, too short distance between vehicles, and the driving at a high speed. Vehicle rear-end collisions will have a serious impact on the economic and life safety of many families, and therefore, the prevention of vehicle rear-end collisions becomes an important problem to be solved urgently.
At present, the system of preventing knocking into the back is mainly pointed out the back car through light to current vehicle, specifically includes two kinds: one is to prompt the rear vehicle by turning on the double flashes through the rear tail lamps, but it is uncertain whether the front vehicle has a fault or the double flashes are turned on for other reasons. And secondly, a warning lamp is arranged on the license plate at the tail end of the vehicle, and the rear vehicle is reminded of keeping the distance by the warning lamp.
However, the above-mentioned rear-end collision prevention system for a vehicle using light to prompt may still cause the rear-end collision phenomenon when the driver of the rear vehicle cannot notice the light prompt in time.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a rear-end collision system is prevented to vehicle, it can make the nearer suggestion of vehicle distance to the back car driver according to vehicle distance information, in case the rear-end collision.
In a first aspect, an embodiment of the present invention provides a rear-end collision prevention system for a vehicle, including:
the system comprises a rear vehicle detection module and a projection assembly which are arranged at the tail of a vehicle, a front vehicle detection module which is arranged at the head of the vehicle, and a controller which is arranged on a vehicle master console;
the rear vehicle detection module and the front vehicle detection module are connected with the controller, and the projection assembly comprises a pitching driving mechanism connected with the corresponding control end of the controller and a projection module connected with the pitching driving mechanism;
the rear vehicle detection module and the front vehicle detection module transmit the detected vehicle distance information to the controller; the controller sends a control instruction to the motor according to the vehicle distance information, and the motor drives the projection module to adjust in a pitching mode according to the control instruction.
In one possible implementation, the pitch drive mechanism comprises: the projection module and the rotating rod have synchronous rotation freedom degree and can be adjusted in a pitching mode between an included angle of 90 degrees upwards, wherein the included angle is vertical to the ground downwards and is vertical to the ground upwards.
In one possible implementation, the pitch drive mechanism comprises: the device comprises a cylinder arranged at the tail of the vehicle and a swing rod fixedly connected with the piston end of the cylinder, wherein the cylinder and the swing rod are respectively hinged with the lower end face of the vehicle.
In one possible implementation manner, an optical filter is arranged at an exit port of the projection module; or the optical filter is arranged in the horizontal projection direction of the projection module, and is used for filtering strong light when the projection module projects in the horizontal and oblique upward directions.
In a possible implementation mode, the controller sends out an alarm instruction to the alarm module according to the vehicle distance information, and the alarm module prompts that the front vehicle distance or the rear vehicle distance exceeds the safety range according to the alarm instruction.
In one possible implementation, the alarm module is a buzz alarm module or a voice prompt mode.
In one possible implementation, the rear vehicle detection module is a radar or AI camera, and the front vehicle detection module is a radar or AI camera, wherein the radar is a laser radar or millimeter wave radar.
In one possible implementation, the projection module is an LCD projection device, a DLP projection device, or an LCOS projection device.
In one possible implementation, the motor is a stepper motor or a servo motor.
In a second aspect, embodiments of the present invention provide a vehicle, which at least includes a vehicle anti-tracking system as described above.
The embodiment of the utility model provides a rear-end collision system is prevented to vehicle, through the back car detection module of installing at the vehicle afterbody and install the vehicle distance information transmission who surveys at the front truck detection module of vehicle head to the controller, make the controller according to vehicle distance information to motor control command to the every single move actuating mechanism drives projection module every single move according to control command and adjusts, the utility model discloses can remind back car driver adjustment vehicle distance according to vehicle distance information, in case the rear-end collision.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a rear-end collision prevention system for a vehicle according to an embodiment of the present invention;
fig. 2 is a schematic view of a scene of a rear-end collision prevention system for a vehicle according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure between a projection module and a motor according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution better understood by those skilled in the art, the technical solution in the embodiment of the present invention will be clearly described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present disclosure without any creative effort shall fall within the protection scope of the present disclosure.
The terms "include" and any other variations in the description and claims of this document and the above-described figures, mean "include but not limited to", and are intended to cover non-exclusive inclusions and not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc. are used to distinguish between different objects and are not used to describe a particular order.
As is well known, emergency situations such as sudden braking and deceleration often occur in the driving process due to complex road conditions, and if a clear signal is not sent to a rear vehicle, close contact is easy to occur. The simplest rear-end collision prevention technology is that when the brake and the deceleration reach a certain value, an automobile sensor sends a signal to automatically turn on an emergency flashing light to inform a rear automobile of taking measures in advance.
In the prior art, a laser sensor built in the top of a windshield and mounted at the height of a rearview mirror is used for monitoring the traffic condition in front. The automobile collision avoidance system can detect an automobile and other objects within 10 meters in front of a bumper at the speed of less than 30 kilometers per hour, can reduce collision by 50%, can completely avoid rear-end collision within 15 kilometers, and can also establish braking force required by collision avoidance through calculation on the basis of the distance between the automobile and the front automobile and the speed of the automobile. If the calculated braking force exceeds a certain value and the driver still does not react, the system assumes that a collision will occur. City safety systems avoid or reduce the severity of a collision by automatically braking and reducing the throttle, while the brake lights flash to alert other vehicles. However, this method requires a highly intelligent system, and if the system has a problem in accuracy, it is difficult for the driver to control the distance and avoid a rear-end collision.
To the problem of back car and leading car distance too near during the driving, the utility model provides a rear-end collision system is prevented to vehicle throws out the relevant information of car distance warning in the minimum safe distance behind the car during driving. Meanwhile, the projection range is dynamically adjustable through the stepping motor, and the vehicle distance requirements of different road conditions and environments are met. After the back car got into in the minimum safe distance, this warning light passed through automatic angle adjustment, and the direct straight alignment of projection equipment is to the back car, and the filter is to light source passivation to safe level when the projection light flat shot, avoids causing the injury to back car navigating mate vision. When realizing that the rear car follows the car through above-mentioned scheme, can see dangerous car apart from regional and warning information not getting into minimum safe distance, be the illumination suggestion after getting into dangerous car apart from, solve from the source with the too close problem of car.
The following detailed description of the implementations of the present invention is made with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a rear-end collision prevention system for a vehicle according to an embodiment of the present invention. Referring to fig. 1, the vehicle rear-end collision prevention system includes: the system comprises a rear vehicle detection module 1 and a projection assembly which are arranged at the tail of a vehicle, a front vehicle detection module 2 which is arranged at the head of the vehicle, and a controller 3 which is arranged at a vehicle master console; the rear vehicle detection module 1 and the front vehicle detection module 2 are connected with the controller 3, and the projection assembly comprises a pitching driving mechanism 41 connected with the corresponding control end of the controller 3 and a projection module 42 connected with the pitching driving mechanism; the first vehicle distance information of the rear vehicle detection module 1 is transmitted to the controller 3, the controller 3 sends a first control instruction to the pitching driving mechanism 41 according to the first vehicle distance information, and the pitching driving mechanism 41 drives the projection module 42 to perform pitching adjustment according to the first control instruction; the rear vehicle detection module 1 and the front vehicle detection module 2 transmit the detected vehicle distance information to the controller 3; the controller 3 sends a control instruction to the motor according to the vehicle distance information, and the motor drives the projection module 42 to adjust the pitch according to the control instruction.
Optionally, the first vehicle distance information of the rear vehicle detection module 1 is transmitted to the controller 3, the controller 3 sends a first control instruction to the pitch driving mechanism 41 according to the first vehicle distance information, and the pitch driving mechanism 41 drives the projection module 42 to perform pitch adjustment according to the first control instruction; the first vehicle distance information of the rear vehicle detection module 1 and the second vehicle distance information of the front vehicle detection module 2 are transmitted to the controller 3, the controller 3 sends a second control instruction to the pitching driving mechanism 41 according to the first vehicle distance information and the second vehicle distance information, and the pitching driving mechanism 41 drives the projection module 42 to perform pitching adjustment according to the second control instruction.
In one embodiment, three vehicles are assumed in the scene, namely a front vehicle, a host vehicle and a rear vehicle. When the distance between the host vehicle and the rear vehicle is smaller than the minimum safe distance, after the host vehicle detects the distance between the host vehicle and the rear vehicle (which may be referred to as first vehicle distance information) through the rear vehicle detection module 1 installed at the tail portion, the controller 3 sends a first control instruction to the pitching driving mechanism 41 according to the first vehicle distance information, and then the pitching driving mechanism 41 drives the projection module 42 to perform pitching adjustment according to the first control instruction, so as to prompt a driver of the rear vehicle to adjust the vehicle distance between the rear vehicle and the host vehicle. Under the condition that the distance between the front vehicle and the vehicle is smaller than the minimum safety distance, and the distance between the rear vehicle and the vehicle is greater than or equal to the minimum safety distance and smaller than 3 times of the minimum safety distance, after the vehicle detects first vehicle distance information between the vehicle and the rear vehicle through the rear vehicle detection module 1 installed at the tail of the vehicle and detects second vehicle distance information (namely the distance between the vehicle and the front vehicle) between the vehicle and the front vehicle through the front vehicle detection module 2 installed at the head of the vehicle, the controller 3 sends a second control instruction to the pitching driving mechanism 41 according to the first vehicle distance information and the second vehicle distance information, and then the pitching driving mechanism 41 drives the projection module 42 to perform pitching adjustment according to the second control instruction so as to prompt a driver of the rear vehicle to adjust the vehicle distance between the rear vehicle and the front vehicle, so that the distance between the vehicle and the front vehicle can be adjusted.
In this embodiment, through the first vehicle distance information of installing the back car detection module at the vehicle afterbody and install the second vehicle distance information of detecting at the front car detection module of vehicle head, make the controller send first control command or second control command to the every single move actuating mechanism who is connected with the corresponding control end of controller according to first vehicle distance information and second vehicle distance information to it adjusts to drive the projection module every single move according to first control command or second control command to be convenient for every single move actuating mechanism, the utility model discloses can show back car driver adjustment vehicle distance according to first vehicle distance information and second vehicle distance information, in order to prevent knocking into the back.
Optionally, the controller 3 is a single chip microcomputer, wherein the single chip microcomputer may be an 8-bit single chip microcomputer, a 16-bit single chip microcomputer, or a 32-bit single chip microcomputer, such as 80C51 in the 8-bit single chip microcomputer. Taking the controller 3 as 80C51 as an example, the rear vehicle detection module 1 and the front vehicle detection module 2 input the detected vehicle distance information to 80C51 through the input I/O port of 80C51, the 80C51 sends a control instruction to the pitch driving mechanism 41 through the output I/O port according to the vehicle distance information, and the pitch driving mechanism 41 drives the projection module 42 to adjust the pitch according to the control instruction. The pitching driving mechanism 41 drives the projection module 42 to perform pitching adjustment, so that a driver of a rear vehicle can be prompted to be close to the vehicle distance by means of projection beams according to the vehicle distance information, and rear-end collision can be prevented.
In one embodiment, the pitch drive mechanism 41 includes: the projection module 42 is fixed on the rotating rod 412, the projection module 42 and the rotating rod 412 have synchronous rotation freedom degrees, and the projection module 42 and the rotating rod 412 are adjusted in a pitching mode between a downward direction perpendicular to the ground and an upward 90-degree included angle formed between the downward direction and the ground.
Alternatively, motor 411 is a stepper motor or a servo motor. Taking the motor 411 as an example of a stepping motor,
the projection module 42 is installed at the tail of the vehicle, and the projection module 42 is fixed on a rotating rod connected with the output shaft end of the stepping motor so as to adjust the pitch angle of the projection module 42, so that the projection module 42 can be adjusted from the rear vehicle pointed by 90 degrees upwards to the vertical pointing ground.
Optionally, projection module 42 is an LCD projection device, DLP projection device, or LCOS projection device.
In another embodiment, the pitch drive mechanism 41 includes: the device comprises a cylinder arranged at the tail of the vehicle and a swing rod fixedly connected with the piston end of the cylinder, wherein the cylinder and the swing rod are respectively hinged with the lower end face of the vehicle; or an electric push rod arranged at the tail part of the vehicle and a swing rod fixedly connected with the electric push rod, wherein the electric push rod and the swing rod are respectively hinged with the lower end surface of the vehicle.
In one embodiment, the rear vehicle detection module 1 is a radar or an AI camera, and the front vehicle detection module 2 is a radar or an AI camera, wherein the radar is a laser radar or a millimeter wave radar.
Specifically, a radar (not limited to a laser radar or a millimeter wave radar) or an AI camera (hereinafter, referred to as a camera) is mounted on the vehicle rear bumper, and the AI camera has functions of rear vehicle identification, distance measurement, acquisition of surrounding environment, acquisition of road conditions, and the like. And the projection equipment, the stepping motor and the radar or AI camera are connected with the controller.
With reference to fig. 2 and fig. 3, the functions of the front vehicle detection module, the rear vehicle detection module, the controller and the projection module 42 are described in detail with respect to the actual driving scene of the vehicle:
when the vehicle is in a flameout, stopped state, the projection module 42 is directed vertically toward the ground with no output. When the vehicle runs, whether the vehicle follows the vehicle behind is judged by reading the output result of the radar or the AI camera. If no vehicle is driving behind, the projection module 42 is inactive.
If a vehicle runs behind the vehicle, the controller 3 compares the stored minimum safe distance with the received vehicle distance, and then outputs an instruction to control the pitching driving mechanism 41 to lift the projection module 42, so that the projection module 42 points to the rear, and the distance between the outer boundary of the projection and the vehicle is the minimum safe distance with the vehicle behind. The minimum safe distance is dynamically adjusted along with the change of the vehicle speed, and the backward pointing angle of the projection equipment is dynamically adjusted along with the change of the minimum safe distance.
If the rear vehicle enters within the minimum safe distance, the projection module 42 is lifted upward and directed vertically toward the rear vehicle to alert the rear vehicle driver. When the projection angle starts at 0 ° vertically downward and the rotation angle is greater than or equal to 90 °, the projected output will pass through an output fixed in the range of 90-135 °. The output content of the projection module 42 may be: the outer side is a straight line with the same vehicle width, and the inner side is warning characters such as attention safety distance and the like.
In one embodiment, a filter is disposed at the exit of the projection module 42; or, a filter is installed in the horizontal projection direction of the projection module 42, and the filter is used for filtering the strong light when the projection module 42 projects horizontally and obliquely.
Specifically, when the projection angle is vertically downward 0 degrees as a starting point and the rotation angle is greater than or equal to 90 degrees, the projection output is output through a filter fixed in a range of 90-135 degrees through the arranged filter, so that the light source is passivated, and the visual injury to drivers of the rear vehicle is avoided.
In one embodiment, the controller sends an alarm instruction to the alarm module according to the vehicle distance information, and the alarm module prompts that the front vehicle distance or the rear vehicle distance exceeds the safety range according to the alarm instruction. Wherein, the alarm module is a buzz alarm module or a voice prompt mode.
The embodiment of the utility model provides a still provide a vehicle, the vehicle includes above arbitrary vehicle at least and prevents chasing after the system.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A vehicle rear-end collision avoidance system, comprising:
the system comprises a rear vehicle detection module and a projection assembly which are arranged at the tail of a vehicle, a front vehicle detection module which is arranged at the head of the vehicle, and a controller which is arranged on a vehicle master console;
the rear vehicle detection module and the front vehicle detection module are connected with the controller, and the projection assembly comprises a pitching driving mechanism connected with the corresponding control end of the controller and a projection module connected with the pitching driving mechanism;
the rear vehicle detection module and the front vehicle detection module transmit the detected vehicle distance information to the controller; the controller sends a control instruction to the motor according to the vehicle distance information, and the motor drives the projection module to adjust in a pitching mode according to the control instruction.
2. The vehicle rear-end collision avoidance system according to claim 1, wherein the pitch drive mechanism comprises:
fix the motor at the vehicle afterbody and with the bull stick that the output shaft end of motor is connected, projection module fixes on the bull stick, projection module with the bull stick has synchronous rotation degree of freedom, is the pitching adjustment between upwards 90 contained angles at perpendicular to ground downwards and with ground.
3. The vehicle rear-end collision avoidance system according to claim 1, wherein the pitch drive mechanism comprises:
the device comprises a cylinder arranged at the tail of the vehicle and a swing rod fixedly connected with the piston end of the cylinder, wherein the cylinder and the swing rod are respectively hinged with the lower end face of the vehicle.
4. The vehicle rear-end collision prevention system according to claim 1, wherein a filter is provided at an exit port of the projection module; or an optical filter is arranged in the horizontal projection direction of the projection module, and the optical filter is used for filtering strong light when the projection module projects horizontally and obliquely.
5. The vehicle rear-end collision avoidance system according to claim 1, further comprising:
and the alarm module is connected with the output end of the controller, the controller sends an alarm instruction to the alarm module according to the vehicle distance information, and the alarm module prompts that the front vehicle distance or the rear vehicle distance exceeds a safety range according to the alarm instruction.
6. The vehicle rear-end collision prevention system of claim 5, wherein the alarm module is a buzz alarm module or a voice prompt module.
7. The vehicle rear-end collision prevention system according to claim 1, wherein the rear vehicle detection module is a radar or an AI camera and the front vehicle detection module is a radar or an AI camera, wherein the radar is a laser radar or a millimeter wave radar.
8. The vehicle rear-end collision avoidance system of claim 1, wherein the projection module is an LCD projection device, a DLP projection device, or an LCOS projection device.
9. The vehicle rear-end collision avoidance system according to claim 2, wherein the motor is a stepper motor or a servo motor.
10. A vehicle, characterized in that it comprises at least a vehicle anti-chase system according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654286.7U CN214028420U (en) | 2021-07-21 | 2021-07-21 | Rear-end collision preventing system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654286.7U CN214028420U (en) | 2021-07-21 | 2021-07-21 | Rear-end collision preventing system for vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN214028420U true CN214028420U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121654286.7U Active CN214028420U (en) | 2021-07-21 | 2021-07-21 | Rear-end collision preventing system for vehicle |
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| CN (1) | CN214028420U (en) |
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2021
- 2021-07-21 CN CN202121654286.7U patent/CN214028420U/en active Active
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