CN112298006A - Anti-dazzling system and method for laser projection and vehicle - Google Patents

Anti-dazzling system and method for laser projection and vehicle Download PDF

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Publication number
CN112298006A
CN112298006A CN202011133627.6A CN202011133627A CN112298006A CN 112298006 A CN112298006 A CN 112298006A CN 202011133627 A CN202011133627 A CN 202011133627A CN 112298006 A CN112298006 A CN 112298006A
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CN
China
Prior art keywords
vehicle
laser
laser projection
module
vehicle body
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Pending
Application number
CN202011133627.6A
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Chinese (zh)
Inventor
李云舟
杨珏晶
王良亮
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HASCO Vision Technology Co Ltd
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HASCO Vision Technology Co Ltd
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Priority to CN202011133627.6A priority Critical patent/CN112298006A/en
Publication of CN112298006A publication Critical patent/CN112298006A/en
Pending legal-status Critical Current

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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
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • 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
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B29/00—Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/11—Linear movements of the vehicle
    • B60Q2300/114—Vehicle acceleration or deceleration
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/13—Attitude of the vehicle body
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40—Indexing codes relating to other road users or special conditions
    • 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
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/50—Projected symbol or information, e.g. onto the road or car body

Abstract

The invention relates to a vehicle safety protection system, and discloses a laser projection dazzling prevention system, which comprises a sensing module (1), a control module (2) and a laser projection module (3); the laser projection module (3) is used for forming a laser pattern and projecting the laser pattern onto the ground; the sensing module (1) is adapted to detect a vehicle body attitude; the control module (2) is respectively connected with the sensing module (1) and the laser projection module (3) to receive the vehicle body posture information detected by the sensing module (1) and is suitable for adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module (3) according to the vehicle body posture information. The invention also discloses a laser projection dazzling prevention method and a vehicle. The laser projection dazzling prevention system can reduce the influence and damage of laser on the eyes of pedestrians around the vehicle and people inside the surrounding vehicle, and can also reduce potential safety hazards.

Description

Anti-dazzling system and method for laser projection and vehicle
Technical Field
The invention relates to a vehicle safety protection system, in particular to a laser projection dazzling prevention system. In addition, the invention also relates to a laser projection dazzling prevention method and a vehicle.
Background
Nowadays, more and more middle and high-end automobiles are equipped with laser projection devices. The laser projection device can be used in a vehicle and also can be used outside the vehicle. Laser projection devices used in vehicles are generally used as head-up displays or atmosphere lamps, and the laser light source power is generally low, so that no obvious risk exists even if a fault occurs. In order to achieve the aim of eye-catching display under the condition of ambient light, the laser projection equipment used outside the vehicle generally has the luminous power of a laser light source reaching several watts or dozens of watts; if it is for illumination, the light emitting power of the laser light source may even reach tens or hundreds of watts. Once a safety accident occurs, it may pose a great threat to the objects in the surrounding environment.
If the vehicle meets the condition of ascending and descending or meets a traffic accident in the moving process, the posture of the vehicle body changes, laser emitted by the laser source can be irradiated to the eyes of pedestrians around the vehicle or the eyes of people in the vehicles around the vehicle, certain damage can be caused to the eyes, normal visual objects of drivers and adults of the vehicles around the vehicle can be influenced, and a new traffic accident can be easily caused. Even when the vehicle body posture changes due to a traffic accident, the laser light source is in an open state for a long time, and a fire or explosion may be caused due to the increase of local energy, so that potential safety hazards are formed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a laser projection dazzling prevention system, which can reduce the influence and damage of laser on the eyes of pedestrians around a vehicle and people inside the surrounding vehicle, and can also reduce potential safety hazards.
The invention provides a laser projection dazzling prevention method, which can reduce the influence and damage of laser on the eyes of pedestrians around a vehicle and people inside the surrounding vehicle, and can also reduce potential safety hazards.
The invention provides a vehicle, and the laser projection dazzling prevention system of the vehicle can reduce the influence and damage of laser on the eyes of pedestrians around the vehicle and people inside the surrounding vehicle, and can also reduce the potential safety hazard.
In order to solve the technical problem, a first aspect of the present invention provides a system for preventing dazzling of laser projection, including a sensing module, a control module and a laser projection module;
the laser projection module is used for forming a laser pattern and projecting the laser pattern onto the ground;
the sensing module is suitable for detecting the vehicle body posture;
the control module is respectively connected with the sensing module and the laser projection module so as to receive the vehicle body posture information detected by the sensing module and is suitable for adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module according to the vehicle body posture information.
Preferably, the control module is adapted to judge whether an included angle theta between the vehicle body and the horizontal plane is smaller than or equal to a first preset angle theta according to the vehicle body posture informationPreparation 1If yes, the laser projection module works normally, and if not, whether an included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module is closed.
Preferably, the sensing module comprises an attitude sensor for detecting the motion attitude of the vehicle, and the signal output end of the attitude sensor is connected to the signal input end of the control module.
Preferably, the sensing module is further adapted to detect the location information of the vehicle, and collect road condition information of the location of the vehicle according to the location information of the vehicle;
the control module is suitable for adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module according to the road condition information.
Further preferably, the control module is adapted to determine whether the vehicle is in an uphill or downhill road condition or a bridge road condition according to the road condition information of the position of the vehicle, detect vehicle body posture information of the vehicle if the vehicle is in the uphill or downhill road condition or the bridge road condition, and normally operate the laser projection module if the vehicle is not in the uphill or downhill road condition.
Preferably, the sensing module is adapted to detect acceleration of the vehicle in a vertical direction;
the control module is suitable for judging whether the change times n of the acceleration per second exceed the preset change times n according to the acceleration in the vertical directionPreparation ofIf the vehicle body posture information is not the vehicle body posture information, adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module.
In a second aspect, the present invention provides a method for preventing dazzling of laser projection, including the following steps:
(1) forming a laser pattern and projecting the laser pattern on the ground, and detecting the body posture of the vehicle;
(2) and adjusting the projection angle of the laser pattern or controlling the start and stop of a laser projection module according to the vehicle body posture information.
Preferably, in the step (2), whether an included angle θ between the vehicle body and a horizontal plane is smaller than or equal to a first preset angle θ is judged according to the vehicle body posture informationPreparation 1If yes, the laser projection module works normally, and if not, whether an included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module is closed.
Further preferably, the method further comprises: detecting the position information of the vehicle, and collecting road condition information of the position of the vehicle according to the position information of the vehicle; and adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module according to the road condition information.
More preferably, whether the vehicle is in an up-and-down slope condition or a bridge road condition is judged according to the road condition information of the position of the vehicle, if so, the posture of the vehicle body of the vehicle is detected, and if not, the laser projection module works normally.
Preferably, the method further comprises: detection stationAcceleration of the vehicle in a vertical direction; judging whether the change number n of the acceleration per second exceeds the preset change number n according to the acceleration in the vertical directionPreparation ofIf the vehicle body posture information is not the vehicle body posture information, adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module.
In a third aspect, the present invention provides a vehicle, which includes the laser projection glare prevention system according to any one of the above first aspects and executes the laser projection glare prevention method according to any one of the above second aspects.
Through the technical scheme, the laser projection dazzling prevention system can reduce the influence and damage of laser patterns on surrounding pedestrians or people in surrounding vehicles when the posture of the vehicle body is changed by detecting the posture of the vehicle body, adjusting the projection angle of laser projection according to the posture of the vehicle body and controlling the work of the laser light source, and can also prevent the phenomenon of combustion or explosion caused by overhigh local temperature of the vehicle when the posture of the vehicle body is changed due to traffic accidents of the vehicle, thereby reducing the potential safety hazard.
Further advantages of the present invention, as well as the technical effects of preferred embodiments, are further described in the following detailed description.
Drawings
FIG. 1 is a functional block diagram of one embodiment of a laser safety system of the present invention;
FIG. 2 is a schematic block diagram of a second embodiment of the laser safety system of the present invention;
FIG. 3 is a flow chart of a first embodiment of the laser safety protection method of the present invention;
FIG. 4 is a schematic block diagram of a third embodiment of a laser safety system of the present invention;
FIG. 5 is a flow chart of a second embodiment of the laser safety protection method of the present invention;
fig. 6 is a flow chart of a third embodiment of the laser safety protection method of the present invention.
Description of the reference numerals
1 perception module 2 control module
3 laser projection module
11 attitude sensor 12 positioning unit
31 laser light source 32 projection position adjusting unit
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the description of the present invention, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the terms "front" and "rear" refer to the direction in which the front end of the vehicle body refers and the direction in which the rear end of the vehicle body refers, respectively. "upper" and "lower" refer to the up-down direction when the vehicle is normally placed. "left" and "right" refer to the rear left-right direction as defined by "front", "rear", "upper" and "lower".
In a basic embodiment of the present invention, as shown in fig. 1, the present invention provides a laser projection glare prevention system, which includes a sensing module 1, a control module 2, and a laser projection module 3; the laser projection module 3 is used for forming a laser pattern and projecting the laser pattern on the ground; the sensing module 1 is adapted to detect the vehicle body attitude; the control module 2 is respectively connected with the sensing module 1 and the laser projection module 3 to receive the vehicle body posture information detected by the sensing module 1 and is suitable for adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module 3 according to the vehicle body posture information.
According to the invention, the signal output end of the sensing module 1 is connected with the signal input end of the control module 2 so as to be able to transmit the vehicle body posture detected by the sensing module 1 to the control module 2. The signal output end of the control module 2 is connected with the signal input end of the laser projection module 3 so as to control the work of the laser projection module 3. The invention provides a laser projection anti-dazzling system which is used on a vehicle. The control module 2 judges an included angle between the vehicle body and the horizontal plane according to the vehicle body posture of the vehicle, and selects to adjust the projection angle of the laser pattern or control the start and stop of the laser projection module 3 according to the included angle between the vehicle body and the horizontal plane.
When the laser projection anti-glare system provided by the above basic embodiment of the present invention works, the laser emitted by the laser projection module 3 forms a laser pattern and then projects the laser pattern on the ground around the vehicle, the specific projection range may be specifically set according to actual needs, and when the laser projection anti-glare system is used for outline marking, the laser pattern may be projected in a range of 0-0.8m away from the vehicle body around the vehicle body, which is only used as an example, and in the actual application process, the user may adjust the laser pattern according to actual road conditions, which is not limited herein. The sensing module 1 is used for detecting the posture information of the vehicle body and transmitting the posture information to the control module 2, and the control module 2 adjusts the projection angle of the laser pattern or the start and stop of the laser projection module 3 according to the posture information of the vehicle body.
The laser projection anti-dazzling system provided by the above basic embodiment of the present invention can adjust the projection angle of the laser pattern or control the start and stop of the laser projection module 3 in time when the vehicle body posture changes, so as to reduce the influence and injury of the laser pattern on surrounding pedestrians or people in surrounding vehicles when the vehicle body posture changes, and simultaneously prevent the phenomenon of combustion or explosion caused by too high local temperature of the vehicle when the vehicle body posture changes due to traffic accident, thereby reducing the potential safety hazard.
As a specific embodiment of the present invention, the control module 2 is adapted to determine whether the included angle theta between the vehicle body and the horizontal plane is less than or equal to a first preset angle theta according to the vehicle body posture informationPreparation 1If yes, the laser projection module 3 works normally, and if not, the included angle theta between the vehicle body and the horizontal plane is judged to beWhether or not less than a second preset angle thetaPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module 3 is closed.
Wherein the first preset angle thetaPreparation 1Less than a second predetermined angle thetaPreparation 2First predetermined angle θPreparation 1Is taken to be the value of and the second preset angle thetaPreparation 2The value of (A) can be determined by those skilled in the art according to actual conditions. Preferably, in order to further prevent an adverse effect of an excessively large inclination angle of the laser pattern, the first preset angle θPreparation 1Is 2-5 deg., in particular, a first preset angle thetaPreparation 1And may be 2 °, 5 °, and any value in between. In order to further prevent the adverse effect caused by the excessively large inclination angle of the vehicle body, the second preset angle θPreparation 2Is 10-15 deg., in particular, a second preset angle thetaPreparation 2And may be 10 °, 15 °, and any value in between.
Specifically, the method for adjusting the projection angle of the laser pattern by the control module comprises the following steps: when the detected vehicle head or the detected vehicle tail is tilted, the laser patterns projected in front of or behind the vehicle body are adjusted to form an angle change gradient from the outer side to the vehicle body direction, specifically, the laser patterns projected in front of the vehicle body rotate to form an angle change gradient towards the rear of the vehicle body, and the laser patterns projected in rear of the vehicle body rotate to form an angle change gradient towards the front of the vehicle body. More specifically, taking an example that a person is located on the left side of the vehicle and faces the vehicle body, when the detected vehicle head or the detected vehicle tail is tilted, the laser pattern projected in front of the vehicle body needs to rotate by an angle change gradient in the counterclockwise direction, and the laser pattern projected in the rear of the vehicle body needs to rotate by an angle change gradient in the clockwise direction. When the detected left side or right side of the vehicle body tilts, the laser patterns projected on the left side and right side of the vehicle body are adjusted to form an angle change gradient from the outer side to the direction of the vehicle body, specifically, the laser patterns projected on the left side of the vehicle body rotate to form an angle change gradient towards the right side of the vehicle body, and the laser patterns projected on the right side of the vehicle body rotate to form an angle change gradient towards the left side of the vehicle body. More specifically, taking an example in which a person is located at the rear side of the vehicle and faces the vehicle body, when the left side or the right side of the vehicle body is detected to be tilted, the laser pattern projected on the left side of the vehicle body is rotated by an angular change gradient in the counterclockwise direction, and the laser pattern projected on the right side of the vehicle body is rotated by an angular change gradient in the clockwise direction. Wherein, an angle change gradient is set as the included angle between the vehicle body and the horizontal plane in the direction.
More specifically, when the vehicle body head and the left vehicle body are detected to be tilted simultaneously, the control module 2 obtains an included angle between the vehicle body and a horizontal plane in the upper, lower, front and rear planes and an included angle between the vehicle body and the horizontal plane in the upper, lower, left and right planes according to the posture of the vehicle body, and compares the two included angles with a first preset angle θPreparation 1And a second preset angle thetaPreparation 2The laser projection module 3 stops working as long as an included angle is higher than a second preset angle; when the two included angles are both at the first preset angle thetaPreparation 1And a second preset angle thetaPreparation 2In between, the projection angles of the laser patterns are adjusted according to the included angles in different directions, and the specific adjustment method is as described above, which is not described herein again.
As one embodiment of the present invention, as shown in fig. 3, the present invention includes a sensing module 1, a control module 2 and a laser projection module 3; the laser projection module 3 is used for forming a laser pattern and projecting the laser pattern on the ground; the sensing module 1 is adapted to detect the vehicle body attitude; the control module 2 is respectively connected with the sensing module 1 and the laser projection module 3 to receive the vehicle posture information detected by the sensing module 1 and is suitable for judging whether the included angle theta between the vehicle body and the horizontal plane is smaller than or equal to a first preset angle theta according to the vehicle posture informationPreparation 1If yes, the laser projection module 3 works normally, and if not, whether the included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module 3 is closed.
The laser projection anti-dazzling system provided by the above specific embodiment can be used according to the included angle theta between the vehicle body and the horizontal planeAt a first predetermined angle thetaPreparation 1And a second preset angle thetaPreparation 2The projection angle of the laser pattern can be accurately adjusted or the start and stop of the laser projection module 3 can be accurately controlled by comparing the sizes of the laser patterns, so that the adverse effect caused by the change of the posture of the vehicle body is further reduced.
The sensing module 1 may include any sensor capable of detecting the posture of the vehicle body, such as an acceleration sensor, a gyroscope, or a vehicle body posture sensor 11. In order to improve the detection accuracy, in one embodiment of the present invention, as shown in fig. 2, the sensing module 1 includes an attitude sensor 11 for detecting the moving attitude of the vehicle, and a signal output terminal of the attitude sensor 11 is connected to a signal input terminal of the control module 2 so as to be able to transmit the vehicle body attitude information detected by the attitude sensor 11 to the control module 2. The attitude sensor 11 can accurately detect the attitude of the vehicle body by combining the acceleration sensor and the gyroscope, thereby accurately adjusting the projection angle of the laser pattern or accurately controlling the start and stop of the laser projection module 3.
In a specific embodiment of the present invention, the sensing module 1 is further adapted to detect the location information of the vehicle, and collect the road condition information of the location of the vehicle according to the location information of the vehicle; the control module 2 is suitable for adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module 3 according to the road condition information.
Specifically, as shown in fig. 4, the sensing module 1 includes a positioning unit 12, the positioning unit 12 may be a GPS positioning system, a beidou positioning system, or a system capable of realizing positioning in the prior art, and the positioning unit 12 may be configured to detect road condition information at the location, such as road surface entity condition at the location, traffic condition at the location, and the like, according to the positioned location information in a network.
In the laser projection anti-dazzling system provided by the above specific embodiment, the sensing module 1 detects information of a position where a vehicle is located, the parallel network detects road condition information of the position, and the control module 2 determines a road entity condition of the position according to the road condition information, and adjusts a projection angle of a laser pattern or controls start and stop of the laser projection module 3 according to the road entity condition.
As a specific embodiment of the present invention, the control module 2 is adapted to determine whether the vehicle is in an up-and-down slope condition or a bridge road condition according to the road condition information of the position of the vehicle, if so, detect the body posture information of the vehicle, and if not, the laser projection module 3 works normally.
As one embodiment of the present invention, as shown in fig. 5, the present invention includes a sensing module 1, a control module 2 and a laser projection module 3; the laser projection module 3 is used for forming a laser pattern and projecting the laser pattern on the ground; the sensing module 1 is suitable for detecting the body posture of the vehicle and the position information of the vehicle, and collecting road condition information of the position of the vehicle according to the position information of the vehicle; the control module 2 is respectively connected with the sensing module 1 and the laser projection module 3 to receive the vehicle body posture information and the road condition information detected by the sensing module 1 and is suitable for judging whether the vehicle is in an up-and-down slope road condition or a bridge road condition according to the road condition information, if not, the laser projection module 3 works normally, and if so, whether an included angle theta between the vehicle body and the horizontal plane is smaller than or equal to a first preset angle theta is judged according to the vehicle body posture informationPreparation 1If yes, the laser projection module 3 works normally, and if not, whether the included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module 3 is closed.
The laser projection anti-dazzling system provided by the above specific embodiment can prejudge when the vehicle runs to an up-down slope road surface or a bridge road surface, so as to accurately control projection of the vehicle laser projection.
In one embodiment of the invention, the sensing module 1 is adapted to detect the acceleration of the vehicle in the vertical direction; the control module 2 is adapted to determine whether the number of changes n of the acceleration per second exceeds a preset number of changes n according to the acceleration in the vertical directionPreparation ofIf the vehicle body posture information is not the vehicle body posture information, the laser projection module 3 is closed, and if the vehicle body posture information is not the vehicle body posture information, the projection angle of the laser pattern is adjusted or the start and stop of the laser projection module 3 are controlled.
Specifically, the sensing module 1 includes an acceleration sensor or an attitude sensor 11 for detecting the acceleration of the vehicle in the vertical direction, and a signal output end of the acceleration sensor or the attitude sensor 11 is connected to a signal input end of the control module 2, so as to be able to transmit the vertical direction and speed information detected by the acceleration sensor or the attitude sensor 11 to the control module 2 and control the operation of the laser projection module 3 through the control module 2.
More specifically, the preset number of changes nPreparation ofIt may be determined from the actual situation, preferably, in order to be able to determine more accurately that the vehicle is on a bumpy road section, the number of changes n is presetPreparation ofMay be set to 3-10 times.
The laser projection anti-dazzling system provided by the above-mentioned specific embodiment can determine whether the vehicle is on a bumpy road section by detecting the number of times of change of the acceleration in the numerical direction, stop the operation of the laser projection module 3 when the vehicle is on the bumpy road section, and control the operation of the laser projection module 3 according to the posture information of the vehicle body when the vehicle is not on the bumpy road section.
As one embodiment of the present invention, as shown in fig. 6, the present invention includes a sensing module 1, a control module 2 and a laser projection module 3; the laser projection module 3 is used for forming a laser pattern and projecting the laser pattern on the ground; the sensing module 1 is adapted to detect the vehicle body attitude and the acceleration of the vehicle in the vertical direction; the control module 2 is respectively connected with the sensing module 1 and the laser projection module 3 to receive the body posture information detected by the sensing module 1 and the acceleration information of the vehicle in the vertical direction and is suitable for judging whether the change number n of the acceleration per second exceeds the preset change number n according to the acceleration of the vehicle in the vertical directionPreparation ofIf yes, the laser projection module 3 is closed, and if not, whether the included angle theta between the vehicle body and the horizontal plane is smaller than or equal to a first preset angle theta is judged according to the vehicle body posture informationPreparation 1If yes, the laser projection module 3 works normally, and if not, whether the included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, closing the laser projection moduleAnd (3) a block.
In one embodiment of the present invention, the laser projection module 3 includes a laser light source 31 and a projection position adjusting unit 32, the control module 2 is connected to the laser light source 31 to control the operation of the laser light source 31, and the control module 2 is connected to the projection position adjusting unit 32 to control the projection angle of the laser pattern.
In a second aspect, an embodiment of the present invention further provides a laser projection anti-glare method, including the following steps:
(1) forming a laser pattern and projecting the laser pattern on the ground, and detecting the body posture of the vehicle;
(2) and adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module 3 according to the vehicle body posture information.
The anti-dazzling method for laser projection provided by the above specific embodiment can adjust the projection angle of the laser pattern or control the start and stop of the laser projection module 3 in time when the posture of the vehicle body changes, so as to reduce the influence and injury of the laser pattern on surrounding pedestrians or people in surrounding vehicles when the posture of the vehicle body changes, and meanwhile, can also prevent the phenomenon of combustion or explosion caused by too high local temperature of the vehicle when the posture of the vehicle body changes due to traffic accidents, and reduce the potential safety hazard.
As a specific embodiment of the method of the present invention, as shown in FIG. 3, the method comprises the following steps:
(1) forming a laser pattern and projecting the laser pattern on the ground, and detecting the body posture of the vehicle;
(2) judging whether the included angle theta between the vehicle body and the horizontal plane is smaller than or equal to a first preset angle theta or not according to the vehicle body posture informationPreparation 1If yes, the laser projection module 3 works normally, and if not, whether the included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module 3 is closed.
The anti-dazzling method for laser projection provided by the above specific embodiment can be implemented according to the included angle θ between the vehicle body and the horizontal plane and the first preset angle θPreparation 1And a second preset angle thetaPreparation 2The projection angle of the laser pattern can be accurately adjusted or the start and stop of the laser projection module 3 can be accurately controlled by comparing the sizes of the laser patterns, so that the adverse effect caused by the change of the posture of the vehicle body is further reduced.
In one embodiment of the method of the present invention, the method further comprises: detecting the position information of the vehicle, and collecting the road condition information of the position according to the position information of the vehicle; and adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module 3 according to the road condition information.
The above-mentioned embodiment provides a laser projection anti-dazzling method, which can prejudge the road condition of the vehicle, and then adjust the projection angle of the laser pattern or control the start and stop of the laser projection module 3 according to the prejudged information, so as to further accurately control the operation of the laser projection module 3.
As a specific embodiment of the method of the present invention, as shown in FIG. 5, the method comprises the following steps:
(1) forming a laser pattern, projecting the laser pattern on the ground, detecting the body posture of the vehicle and the position information of the vehicle, and collecting road condition information of the position of the vehicle according to the position information of the vehicle;
(2) judging whether the vehicle is in an up-and-down slope condition or a bridge road condition according to the road condition information of the position of the vehicle, if not, normally working the laser projection module 3, if so, judging whether an included angle theta between the vehicle body and the horizontal plane is smaller than or equal to a first preset angle theta according to the posture information of the vehicle bodyPreparation 1If yes, the laser projection module 3 works normally, and if not, whether the included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module 3 is closed.
The laser projection anti-dazzling method provided by the above specific embodiment can perform prejudgment when the vehicle runs to an up-down slope road surface or a bridge road surface, so as to accurately control projection of the vehicle laser projection.
As a specific embodiment of the method of the present invention, as shown in FIG. 6, the method comprises the following steps:
(1) forming a laser pattern and projecting the laser pattern on the ground, detecting a body posture of the vehicle and an acceleration of the vehicle in a vertical direction;
(2) judging whether the change number n of the acceleration per second exceeds the preset change number n according to the acceleration in the vertical directionPreparation ofIf yes, the laser projection module 3 is closed, and if not, whether the included angle theta between the vehicle body and the horizontal plane is smaller than or equal to a first preset angle theta is judged according to the vehicle body posture informationPreparation 1If yes, the laser projection module 3 works normally, and if not, whether the included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module 3 is closed.
The laser projection anti-dazzling system provided by the above-mentioned specific embodiment can determine whether the vehicle is on a bumpy road section by detecting the number of times of change of the acceleration in the numerical direction, stop the operation of the laser projection module 3 when the vehicle is on the bumpy road section, and control the operation of the laser projection module 3 according to the posture information of the vehicle body when the vehicle is not on the bumpy road section.
The embodiment of the invention also provides a vehicle which comprises the laser projection dazzling prevention system.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims (12)

1. The laser projection dazzling prevention system is characterized by comprising a sensing module (1), a control module (2) and a laser projection module (3);
the laser projection module (3) is used for forming a laser pattern and projecting the laser pattern onto the ground;
the sensing module (1) is adapted to detect a vehicle body attitude;
the control module (2) is respectively connected with the sensing module (1) and the laser projection module (3) to receive the vehicle body posture information detected by the sensing module (1) and is suitable for adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module (3) according to the vehicle body posture information.
2. The laser projection glare prevention system according to claim 1, wherein the control module (2) is adapted to determine whether an included angle θ between the vehicle body and a horizontal plane is smaller than or equal to a first preset angle θ according to the vehicle body posture informationPreparation 1If yes, the laser projection module (3) works normally, and if not, whether an included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module (3) is closed.
3. The laser projection glare prevention system according to claim 1 or 2, characterized in that the perception module (1) comprises an attitude sensor (11) for detecting a vehicle movement attitude, a signal output of the attitude sensor (11) being connected to a signal input of the control module (2).
4. The laser projection dazzling prevention system according to claim 1, wherein the sensing module (1) is further adapted to detect the location information of the vehicle and collect road condition information of the vehicle location according to the location information of the vehicle;
the control module (2) is suitable for adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module (3) according to the road condition information.
5. The laser projection dazzling prevention system according to claim 4, wherein the control module (2) is adapted to determine whether the vehicle is in an uphill or downhill road condition or a bridge road condition according to the road condition information of the position of the vehicle, detect body posture information of the vehicle if the vehicle is in the uphill or downhill road condition, and normally operate the laser projection module (3) if the vehicle is not in the uphill or downhill road condition.
6. Anti-glare system for laser projection according to claim 1 or 2, characterized in that said perception module (1) is adapted to detect the acceleration of said vehicle in a vertical direction;
the control module (2) is suitable for judging whether the change times n of the acceleration per second exceed the preset change times n according to the acceleration in the vertical directionPreparation ofIf so, the laser projection module (3) is closed, and if not, the projection angle of the laser pattern is adjusted or the start and stop of the laser projection module (3) are controlled according to the vehicle body posture information.
7. A method for preventing dazzling of laser projection is characterized by comprising the following steps:
(1) forming a laser pattern and projecting the laser pattern on the ground, and detecting the body posture of the vehicle;
(2) and adjusting the projection angle of the laser pattern or controlling the start and stop of a laser projection module (3) according to the vehicle body posture information.
8. The method for preventing dazzling of laser projection according to claim 7, wherein in the step (2), it is determined whether an included angle θ between the vehicle body and a horizontal plane is smaller than or equal to a first preset angle θ according to the vehicle body posture informationPreparation 1If yes, the laser projection module (3) works normally, and if not, whether an included angle theta between the vehicle body and the horizontal plane is smaller than a second preset angle theta is judgedPreparation 2(ii) a If so, adjusting the projection angle of the laser pattern; if not, the laser projection module (3) is closed.
9. The method of claim 7 or 8, further comprising: detecting the position information of the vehicle, and collecting road condition information of the position according to the position information of the vehicle;
adjusting the projection angle of the laser pattern or controlling the start and stop of the laser projection module (3) according to the road condition information.
10. The method for preventing dazzling of laser projection according to claim 9, wherein whether the vehicle is in an uphill or downhill road condition or a bridge road condition is determined according to road condition information of the position of the vehicle, if so, a body posture of the vehicle is detected, and if not, the laser projection module (3) works normally.
11. The method of claim 7 or 8, further comprising: detecting an acceleration of the vehicle in a vertical direction;
judging whether the change number n of the acceleration per second exceeds the preset change number n according to the acceleration in the vertical directionPreparation ofIf so, the laser projection module (3) is closed, and if not, the projection angle of the laser pattern is adjusted or the start and stop of the laser projection module (3) are controlled according to the vehicle body posture information.
12. A vehicle comprising the anti-laser projection blinding system according to any one of claims 1 to 6 and performing the anti-laser projection blinding method according to any one of claims 7 to 11.
CN202011133627.6A 2020-10-21 2020-10-21 Anti-dazzling system and method for laser projection and vehicle Pending CN112298006A (en)

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CN202011133627.6A CN112298006A (en) 2020-10-21 2020-10-21 Anti-dazzling system and method for laser projection and vehicle

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CN102748716A (en) * 2011-04-22 2012-10-24 株式会社小糸制作所 Control device for vehicle lamp and vehicle lamp system
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Application publication date: 20210202