CN113525225B - Car light adjusting method - Google Patents
Car light adjusting method Download PDFInfo
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- CN113525225B CN113525225B CN202110986754.9A CN202110986754A CN113525225B CN 113525225 B CN113525225 B CN 113525225B CN 202110986754 A CN202110986754 A CN 202110986754A CN 113525225 B CN113525225 B CN 113525225B
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- preset
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- vehicle lamp
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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
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
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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
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
- B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
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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
- 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
- B60Q1/34—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 for indicating change of drive direction
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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
- 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
- B60Q1/50—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 for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/54—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 for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating speed outside of the vehicle
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/155—Coordinated control of two or more light sources
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
-
- 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
- B60Q2300/112—Vehicle speed
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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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/33—Driving situation
- B60Q2300/332—Driving situation on city roads
-
- 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
- B60Q2300/33—Driving situation
- B60Q2300/333—Driving situation on suburban or country roads
-
- 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
- B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The application is applicable to the technical field of automobile lamps, and particularly provides an automobile lamp adjusting method, which comprises the steps of setting a plurality of preset positioning information and setting corresponding preset automobile lamp parameters; setting a plurality of preset road condition information and preset car lamp parameters; acquiring temporary road condition information and temporary positioning information during vehicle running, judging the credibility of the temporary positioning information, and presetting pre-judging information for comparing with the credibility of the temporary positioning information; when the reliability is lower than a preset threshold value, the vehicle lamp is adjusted through preset vehicle lamp parameters corresponding to preset road condition information; when the reliability is higher than a preset threshold value, the vehicle lamp is adjusted through a preset vehicle lamp parameter corresponding to preset positioning information or a preset vehicle lamp parameter corresponding to preset road condition information. The automobile lamp adjusting device aims at solving the technical problems that an automobile lamp in the prior art is single in adjusting effect, can not be adaptively adjusted according to a driving state and is low in accuracy.
Description
Technical Field
The invention relates to the technical field of automobile lamps, in particular to an automobile lamp adjusting method.
Background
Automobiles are common transportation means, more and more automobiles are used nowadays, and the automobile lamp adjustment of the automobiles is generally performed only through manual control, so that the automobile lamp is simply operated and cannot be adjusted along with road conditions and other factors, so that the light effect is single, and the automobile lamp cannot be adaptively adjusted due to running road conditions, running states and the like.
Disclosure of Invention
The invention aims to provide a car lamp adjusting method, which aims to solve the technical problems that the car lamp adjusting effect in the prior art is single, the car lamp cannot be adaptively adjusted according to the running state, and the accuracy is low.
In order to achieve the above purpose, the invention adopts the following technical scheme: there is provided a method of adjusting a lamp of a vehicle,
setting a plurality of preset positioning information, and setting preset car lamp parameters corresponding to the preset positioning information;
setting a plurality of preset road condition information, and setting preset car lamp parameters corresponding to each preset road condition information;
acquiring temporary road condition information and temporary positioning information during vehicle running, judging the credibility of the temporary positioning information, and presetting pre-judging information for comparing with the credibility of the temporary positioning information;
when the reliability is lower than a preset threshold value, the vehicle lamp is adjusted through a preset vehicle lamp parameter corresponding to the preset road condition information corresponding to the temporary road condition information;
when the reliability is higher than the preset threshold, the vehicle lamp is adjusted through the preset vehicle lamp parameters corresponding to the preset positioning information corresponding to the temporary positioning information or through the preset vehicle lamp parameters corresponding to the preset road condition information corresponding to the temporary road condition information.
In some embodiments of the present invention, the preset road condition information includes whether vehicles come in opposite directions, the number of vehicles passing in a unit time, the running speed of the vehicle, image acquisition information, and vehicle distance; the preset car lamp parameters comprise the area and the shape of a luminous area and a dark area of the car lamp, illumination intensity, illumination range and illumination direction.
In some embodiments of the present invention, when the image acquisition information indicates that the vehicle is in an open area, the preset vehicle lamp parameter is to control the vehicle lamp to adopt wide-angle illumination, and the light-emitting area is enlarged; when the image acquisition information shows that the vehicle is in a narrow area, the preset vehicle lamp parameters are selected for spot lighting, and the luminous area is reduced.
In some embodiments of the present invention, when the number of passing vehicles in a unit time is higher than a preset value, the preset lamp parameters are that the lamps switch the dipped headlight, and the intensity of the lamp light is weakened, so as to reduce the light-emitting area; the number of passing vehicles in unit time is lower than a preset value, the preset vehicle lamp parameters are that the vehicle lamp is switched into a high beam, the light intensity is increased, wide-angle illumination is selected, and the luminous area is enlarged.
In some embodiments of the present invention, if the running speed of the vehicle is higher than a preset value, the preset lamp parameter is that the lamp is switched to a high beam, the lamp intensity is increased, the light-emitting area is enlarged, and the no-light area is reserved for observing the front vehicle illumination; if the running speed of the vehicle is lower than the preset value, the preset vehicle lamp parameters are that the vehicle lamp is switched into a dipped headlight, the light intensity is weakened, and the light-emitting area is reduced.
In some embodiments of the present invention, when the vehicle is opposite, the preset vehicle lamp parameter is to switch to the dipped headlight, and the distance between the vehicle and the opposite vehicle and the size of the opposite vehicle are set, and the preset vehicle lamp parameter is to adjust the area and shape of the no light area of the vehicle lamp; or when the vehicle arrives, the preset vehicle lamp parameter is switched to the dipped headlight, the running speed of the vehicle is set and measured, and the preset vehicle lamp parameter is adjusted to the flicker interval time of the vehicle lamp.
In some embodiments of the present invention, the confidence level is obtained by multiplying a plurality of variables by weights respectively corresponding to the plurality of variables and sequentially adding the weights.
In some embodiments of the invention, the variable is a probability of calculating a current position according to a historical driving track, a probability of whether communication of the positioning device is smooth or unreliable in historical statistical information, or a driving speed of the vehicle.
In some embodiments of the present invention, the preset road condition information further includes weather conditions.
In some embodiments of the present invention, when the image acquisition information indicates that the vehicle is in a steering state, the preset vehicle lamp parameter is that the shape of the light-emitting area is in a steering arrow shape; when the vehicle distance is measured, the preset vehicle lamp parameters are that the shape of the luminous area is a number matched with the speed.
The car lamp adjusting method provided by the invention has the beneficial effects that: compared with the prior art, the method has the advantages that the preset positioning information and the preset road condition information are set in the adjustment method, when the temporary road condition information and the temporary positioning information are acquired in the running process of the vehicle, the temporary road condition information and the temporary positioning information are respectively matched with a certain preset road condition information and a preset positioning information, the corresponding preset vehicle lamp parameters corresponding to the matched preset road condition information and the preset positioning information are adopted to adjust the vehicle lamp, the effect of adaptively adjusting the vehicle lamp according to the positioning information and the road condition information is achieved, the vehicle lamp is prevented from being controlled purely and manually, judgment is carried out between the preset road condition information and the preset positioning information, the vehicle lamp is adjusted by preferentially adopting the preset vehicle lamp parameters corresponding to the preset road condition information if the reliability of the preset road condition information and the preset positioning information is lower than a threshold value, and the vehicle lamp is adjusted by adopting the preset vehicle lamp parameters corresponding to the preset positioning information if the preset road condition information is higher than the threshold value, and the vehicle lamp is adjusted by adopting the preset vehicle lamp parameters corresponding to the preset road condition information.
Therefore, the invention can adaptively adjust the car lamp according to the road condition information and the positioning information, and has better accuracy for adjusting the car lamp because of the pre-judging information of judging the reliability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art 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 that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a control principle provided by an embodiment of the present invention;
FIG. 2 is a schematic view of the light area and shape of the vehicle lamp in an open area;
FIG. 3 is a schematic view of the light area and shape of a vehicle lamp when on an expressway;
FIG. 4 is a schematic view of the light area and shape of a lamp in a town street;
FIG. 5 is a schematic view of the light area and shape of a vehicle lamp when in urban street;
FIG. 6 is a schematic view of the light area and shape of a vehicle lamp during a meeting;
wherein, the shadow area is a luminous area, and the blank area is a non-luminous area.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention provides a specific embodiment of a car lamp adjusting method, which comprises the following steps:
setting a plurality of preset positioning information and setting preset car lamp parameters corresponding to the preset positioning information,
because the vehicle can pass through different regions, different roads and the like in the running process, a plurality of preset positioning information is set, which can comprise high speed, urban areas, suburbs, towns and the like, and when the vehicle is in different regions or roads, the vehicle can correspond to respective preset vehicle lamp parameters, and the vehicle lamp is adjusted through the preset vehicle lamp parameters.
Setting a plurality of preset road condition information, and setting preset car lamp parameters corresponding to each preset road condition information;
the method also provides setting a plurality of preset road condition information, and obtaining corresponding preset car lamp parameters through the preset road condition information, and adjusting the car lamp through the preset car lamp parameters, namely, adaptively adjusting the car lamp through the road condition information besides the positioning information.
Acquiring temporary road condition information and temporary positioning information during vehicle running, judging the credibility of the temporary positioning information, and presetting pre-judging information for comparing with the credibility of the temporary positioning information;
the temporary road condition information and the temporary positioning information in the running process of the vehicle are acquired, the temporary positioning information can be acquired through the GPS positioning module, the temporary road condition information can be acquired according to the specific module, the reliability of the temporary positioning information is judged after the temporary positioning information is acquired, because the temporary positioning information is sometimes not accurately acquired, the reliability of judgment is needed to be adopted, the accuracy is improved, and the pre-judgment information for comparing the reliability of the temporary positioning information is preset.
Specifically, the preset road condition information may include information such as whether vehicles come in opposite directions, the number of vehicles passing in a unit time, the running speed of the vehicle, image acquisition information, vehicle distance and the like, and the content of the preset road condition information may be selected according to actual needs. The preset road condition information can be understood as a pre-stored information standard value, the temporary information measured in real time can be compared with the pre-stored information standard value, and when the preset road condition information is in a certain range, the appointed operation is triggered.
Specifically, the temporary road condition information can be used for reflecting the current road condition faced in the running process of the vehicle, the temporary road condition information can include information such as whether vehicles come in opposite directions, the number of vehicles passing in unit time, the running speed of the vehicle, image acquisition information, vehicle distance and the like, and the content of the temporary road condition information can be selected according to actual needs.
Specifically, the temporary road condition information can be compared with the preset road condition information, and if the temporary road condition information is matched with the preset road condition information, the vehicle lamp can be adjusted according to the preset vehicle lamp parameters corresponding to the matched preset road condition information.
For example, the number of vehicles in a unit time can be obtained by the photoelectric counter, and the number of vehicles in the unit time is the temporary road condition information collected by the photoelectric counter. If the number of vehicles in the unit time in the preset road condition information is 50 and the number of vehicles in the unit time acquired by the temporary road condition information through the photoelectric counter is 50, the temporary road condition information is matched with the preset road condition information in the situation.
For example, if the number of vehicles per unit time in the preset traffic information is 50, the lamp parameters under the preset traffic information may be switched to the low beam, so as to reduce the light intensity and reduce the light emitting area. In this case, if the number of vehicles per unit time in the temporary road condition information is 50, the temporary road condition information is matched with the preset road condition information, and the vehicle lamp is adjusted according to the vehicle lamp parameters.
Specifically, when judging whether the temporary positioning information is credible or not, when the credibility is lower than a preset threshold value in the preset judgment information, adjusting the vehicle lamp through a preset vehicle lamp parameter corresponding to the preset road condition information corresponding to the temporary road condition information; when the reliability is low, the vehicle lamp is adjusted by preferentially adopting preset vehicle lamp parameters corresponding to preset road condition information.
Specifically, when the reliability is higher than a preset threshold value in the pre-judgment information, the vehicle lamp is adjusted through a preset vehicle lamp parameter corresponding to the preset positioning information corresponding to the temporary positioning information or through a preset vehicle lamp parameter corresponding to the preset road condition information corresponding to the temporary road condition information. When the reliability is higher, the positioning is accurate, and the preset car lamp parameters corresponding to the preset positioning information can be adopted to adjust the car lamp.
As shown in fig. 1, in this embodiment, the adjustment of the vehicle lamp is implemented by a DMD, and this embodiment is provided with a central processing module, which is configured to receive signals, and the central processing module that obtains signals transmits signals to an illumination module, and then the illumination module transmits signals to the DMD, so as to adjust the vehicle lamp by the DMD. Specifically, the positioning information is obtained through a positioning module, and the positioning module transmits signals to a central processing module. The road condition information is obtained through various modules, is transmitted to the central processing module, and then the central processing module transmits signals to the lighting module, and the lighting module transmits signals to the DMD, so that the DMD adjusts the car lamp.
Compared with the prior art, the method has the advantages that the preset positioning information and the preset road condition information are set in the adjustment method, when the temporary road condition information and the temporary positioning information are acquired in the running process of the vehicle, the temporary road condition information and the temporary positioning information are consistent with a certain preset road condition information and a preset positioning information respectively, the corresponding preset vehicle lamp parameters corresponding to the corresponding preset road condition information and the preset positioning information are adopted to adjust the vehicle lamp, the effect of adaptively adjusting the vehicle lamp according to the positioning information and the road condition information is achieved, the vehicle lamp is prevented from being controlled purely and manually, judgment is carried out between the preset road condition information and the preset positioning information, the vehicle lamp is adjusted by preferentially adopting the preset vehicle lamp parameters corresponding to the preset road condition information if the reliability is low, and the vehicle lamp is adjusted by adopting the preset vehicle lamp parameters corresponding to the preset positioning information if the reliability is high, and the vehicle lamp is also adjusted by adopting the preset vehicle lamp parameters corresponding to the preset road condition information.
Therefore, the invention can adaptively adjust the car lamp according to the road condition information and the positioning information, and has better accuracy for adjusting the car lamp because of the pre-judging information which is compared with the reliability.
As shown in fig. 1, in one embodiment, the preset road condition information may include whether vehicles come in opposite directions, the number of vehicles passing in a unit time, the running speed of the vehicle, the image acquisition information, and the distance between vehicles; specifically, the number of vehicles in unit time can be obtained through a photoelectric counter, the running speed of the vehicle can be obtained through a speed measuring sensor carried by the vehicle, image acquisition information can be obtained and identified through an image acquisition module and an image identification module, the vehicle distance can be obtained through an image identification result, or a light intensity sensor is used for testing, the light intensity sensor sends out and returns time through a test light beam, then the distance between the light intensity sensor and the opposite vehicle is calculated according to the light speed, the obtained signals can be transmitted to a central processing module, the central processing module transmits signals to an illumination module, the illumination module transmits signals to a DMD, and the DMD controls the vehicle lamp. In addition, a color sensor, a photoelectric counter and a light intensity sensor can be arranged, signals can be transmitted to the optical sensor module, the optical sensor module is used for controlling working states of various sensors, such as starting working, stopping working, transmitting detection data of the sensors and the like, and the optical sensor module is further electrically connected with the optical sensor control module which is used for controlling the optical sensor module. Because there may be a case where a plurality of sensors are operated at the same time, one optical sensor control module is provided to collectively control other optical sensor modules. The optical sensor control module transmits the test data of the sensor to the central processing module for processing. The optical sensor control module is used for controlling other optical sensor modules, so that the calculation pressure of the central processing module can be shared, and the sensor can be replaced conveniently when the sensor fails.
The image acquisition module is used for image acquisition, the image acquisition module sends the acquired image to the image recognition module for image recognition, and the image recognition module transmits the image recognition result to the central processing module for processing. The central processing module can also be directly communicated with the image acquisition module or the image recognition module.
In this embodiment, the preset lamp parameters include the area and shape of the light emitting region, the area without light, and the illumination intensity, the illumination range, and the illumination direction of the lamp.
According to the embodiment, the effect of accurately adjusting the shape of the car lamp according to the road condition information is achieved by acquiring various road condition parameters and controlling the adjustment and switching of the car lamp by the central processing unit.
Specifically, in one embodiment, the area where the current body is located is an open area or a narrow area obtained through the result of image recognition, and after the image acquisition module acquires the image, the image is sent to the image recognition module for recognition and then sent to the central processing module. When the vehicle lamp is in an open area, as shown in fig. 2, the preset vehicle lamp parameters are used for controlling the vehicle lamp to adopt wide-angle illumination and enlarge the luminous area; when the vehicle lamp is in a narrow area, the preset vehicle lamp parameters are that spotlight illumination is selected, and the luminous area is reduced.
The embodiment provides a technical means of image acquisition and identification, so that the judgment of the area where the vehicle is located is realized, and the effect of controlling the vehicle lamp to adopt adaptive angle irradiation is realized.
In one embodiment, the number of vehicles passing in a unit time is continuously counted by the photoelectric counter, when the number of passing vehicles in the unit time is higher than a preset value, the fact that the vehicles pass frequently in the way possibly are in an urban area is indicated, as shown in fig. 5, the preset vehicle lamp parameters are that the vehicle lamps switch dipped lamps, the light intensity is weakened, and the light-emitting area is reduced; the number of passing vehicles in unit time is lower than a preset value, which indicates that the road condition is better, and the vehicle is probably in suburbs or towns, and the preset vehicle lamp parameters are that the vehicle lamp is switched to a high beam lamp, as shown in fig. 4, the light intensity is increased, the wide-angle illumination is selected, and the light-emitting area is enlarged.
In this embodiment, the number of vehicles in a unit time is measured, and the vehicles are judged to be lower than or higher than a preset value, so that the effect of selecting a dipped headlight or a high beam and adjusting the intensity irradiation angle of the light can be achieved.
In a further embodiment, the running speed of the vehicle can be measured by the speed measuring sensor, and if the running speed of the vehicle is higher than a preset value, the preset vehicle lamp parameter is that the vehicle lamp is switched to a high beam lamp, the light intensity is increased, the light-emitting area is enlarged, and the no light area is reserved for observing the front vehicle illumination; if the running speed of the vehicle is lower than the preset value, the preset vehicle lamp parameters are that the vehicle lamp is switched into a dipped headlight, the light intensity is weakened, and the light-emitting area is reduced.
In this embodiment, the running speed of the vehicle is measured, and the running condition of the vehicle and the road condition of the vehicle are determined according to the running speed, so that the effect of adjusting the vehicle lamp according to the vehicle speed is achieved. As in fig. 3, and when traveling at high speed, a partially matt region may be reserved in the light emitting region for observing the illumination of the preceding vehicle.
In one embodiment, when the vehicle is opposite to the vehicle, i.e. when the two vehicles are running relatively, the preset vehicle lamp parameter is changed into a dipped headlight, the distance between the vehicle and the opposite vehicle and the size of the opposite vehicle are set, and the preset vehicle lamp parameter is used for adjusting the area and the shape of the non-light area of the vehicle lamp; as shown in fig. 6, specifically, when two vehicles run relatively, the no-light area can be adjusted according to the running condition of the vehicles, so that a driver obtains a proper visual field area, the visual field is prevented from being influenced by the light of the opposite vehicles, and the area of the no-light area can be gradually increased as the distance between the two vehicles is gradually shortened; alternatively, the area of the entire light area (no light area plus the area of the light emitting area) is adjusted so that a smaller area is used for illumination. Or when the vehicle is opposite to the driving direction, the preset vehicle lamp parameters are switched to dipped headlight, the running speed of the vehicle is set, and the preset vehicle lamp parameters are adjusted to the flicker interval time of the vehicle lamp. The flicker interval of the lights is adjusted according to the running speed of the vehicle, for example, the lighting is changed from 4 seconds to 1 second to 3 seconds to 1 second, so that more time is available for observing the opposite vehicle, and a more intense flicker prompt of the opposite vehicle is also given. In this embodiment, the oncoming vehicles and the sizes of the oncoming vehicles can be collected through the image collection module, and the vehicle speeds can be obtained through the speed sensor.
The embodiment particularly provides an adjusting means in a relative running state of the two, when the two run relatively, the angle and the area of the car lamp are adjusted adaptively, and the flashing interval of the light is adjusted according to the car speed, so that a better adjusting effect of the car lamp in a meeting state is realized.
In addition, the shape and size of the matt region can be determined by using the reflected image obtained by the DMD. Since the DMD controls the optical path by reflection, a portion of the light reflected from the opposite object is also incident near the DMD. A small CCD may be provided near the DMD to collect the returning light and adjust the size and shape of the non-light area according to the distribution area of the returning light. For example, a dark area is set at its corresponding position by a highlight area collected in the CCD.
As a preferred embodiment of the present embodiment, the reliability is obtained by multiplying a plurality of variables by weights corresponding to the plurality of variables, respectively, and sequentially adding the multiplied weights. Specifically, the credibility is defined as a, where a is a=b1×a1+b2×a2+b3×a3 … …, where A1, A2, A3 … … are multiple variables, and b1, b2, b3 … … are weights corresponding to the respective variables.
For the weights allocated to the variables, preset weights can be used, and the weights can be adjusted according to the judgment information of the road conditions.
Specifically, since the positioning information may be interfered by some external uncertain factors, so that positioning is inaccurate, in order to avoid this situation, pre-judgment information is set, and whether the positioning information is accurate or not can be accurately judged through the judgment, so that a better reference is provided for adjusting the vehicle lamp.
As a preferred implementation manner of this embodiment, the variable is a probability of calculating a current position according to a historical driving track, a probability of whether communication of the positioning device is smooth or unreliable in historical statistical information, or a driving speed of the vehicle.
In this embodiment, the reliability determination of the positioning information includes calculation of a plurality of variables, which may be specifically: calculating the possibility A1 of being positioned at the current position according to the historical driving track; whether communication with the positioning device (server or satellite system) is smooth (e.g., send a verification request, see if the request is being answered by this field) A2; historical statistics (e.g., probability that the positioning information is not trusted in the same case) A3; the running speed A4 of the vehicle is different from the running speed of the vehicle in city and city.
Specifically, when the judging information of the road condition indicates that there are many vehicles coming and going, a higher weight is assigned to A2, and because when there are many vehicles in the same area, communication with the positioning device is actually not smooth, A2 is a main influencing factor at this time, so A2 has a higher weight, and it is preferentially confirmed whether the communication of the positioning device is smooth.
For example, when the judging information of the road condition indicates that the vehicle coming and going is lower than a certain threshold value, the weight assigned to A1 is higher, and the road section is possibly in city but not crowded, so that the probability of credibility of the positioning information is higher, and if the positioning information is consistent with the calculation information of the track, the situation that the positioning information is missing is indicated, so that the weight assigned to A1 is higher.
According to the method, the reliability of the position information can be well pre-determined by means of the multiple variables and the weights of different degrees are distributed to the multiple variables, so that the vehicle lamp can be adjusted in an adaptive mode more accurately.
The preset road condition information also includes weather conditions. The weather condition can be obtained by a network, and is generally obtained from a cloud server or a weather broadcasting server, and in severe weather, the vehicle can properly reduce the running speed, and the illumination area should be expanded as much as possible.
In addition, the image acquisition information can also be applied to certain specific driving states, and particularly, when the image acquisition module acquires that the vehicle is in a steering state, the vehicle lamp parameter is preset to be in a steering arrow shape; when the vehicle distance is measured, the preset vehicle lamp parameters are that the shape of the luminous area is a number matched with the speed.
Therefore, in the embodiment, the lamplight is not only used for illumination, but also provides an indication effect with a certain function and a specific indication symbol or number by acquiring road condition information.
The use of each module in the present application is not limited to the detection of specific information disclosed in the present application, and any driving and road information that each module can detect and acquire can be used as road condition information in the present invention and adapted.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The method for adjusting the car lamp is characterized in that,
setting a plurality of preset positioning information, and setting preset car lamp parameters corresponding to the preset positioning information;
setting a plurality of preset road condition information, and setting preset car lamp parameters corresponding to each preset road condition information;
acquiring temporary road condition information and temporary positioning information during vehicle running, judging the credibility of the temporary positioning information, and presetting pre-judging information for comparing with the credibility of the temporary positioning information; the credibility is obtained by multiplying a plurality of variables by weights respectively corresponding to the variables and sequentially adding the weights; the variables are the possibility of calculating the current position according to the historical driving track, whether the communication of the positioning device is smooth, the probability of being unreliable in the historical statistical information and the driving speed of the vehicle; the temporary road condition information is used for reflecting the current road condition faced in the running process of the vehicle;
when the reliability is lower than a preset threshold value, the vehicle lamp is adjusted through a preset vehicle lamp parameter corresponding to the preset road condition information corresponding to the temporary road condition information;
when the reliability is higher than a preset threshold value, the vehicle lamp is adjusted through preset vehicle lamp parameters corresponding to preset positioning information corresponding to temporary positioning information or through preset vehicle lamp parameters corresponding to preset road condition information corresponding to temporary road condition information, signals of the preset road condition information are transmitted to a central processing module, the central processing module transmits signals to an illumination module, the illumination module transmits signals to a digital micro-mirror device, and the digital micro-mirror device controls the vehicle lamp;
and adjusting the weight according to the judgment information of the road condition information.
2. The vehicle lamp adjusting method according to claim 1, wherein the preset road condition information includes whether vehicles come in opposite directions, the number of vehicles passing in a unit time, the running speed of the vehicle, image acquisition information, and vehicle distance; the image acquisition information represents the image acquisition information of the vehicle in an open area or a narrow area or a steering state, and the preset vehicle lamp parameters comprise the area and the shape of a light-emitting area and a dark area of the vehicle lamp, the illumination intensity, the illumination range and the illumination direction.
3. The method for adjusting the vehicle lamp according to claim 2, wherein when the image acquisition information shows that the vehicle is in an open area, the preset vehicle lamp parameters are that the vehicle lamp is controlled to adopt wide-angle illumination, and the light-emitting area is enlarged; when the image acquisition information shows that the vehicle is in a narrow area, the preset vehicle lamp parameters are selected for spot lighting, and the luminous area is reduced.
4. The method for adjusting a vehicle lamp according to claim 2, wherein when the number of passing vehicles per unit time is higher than a preset value, the preset vehicle lamp parameter is that the vehicle lamp switches a dipped headlight, and reduces the light intensity and the light emitting area; the number of passing vehicles in unit time is lower than a preset value, the preset vehicle lamp parameters are that the vehicle lamp is switched into a high beam, the light intensity is increased, wide-angle illumination is selected, and the luminous area is enlarged.
5. The method for adjusting the car lamp according to claim 2, wherein the running speed of the car is higher than a preset value, the preset car lamp parameter is that the car lamp is switched to a high beam, the intensity of the lamp light is increased, the luminous area is enlarged, and no light area is reserved for observing the front car illumination; if the running speed of the vehicle is lower than the preset value, the preset vehicle lamp parameters are that the vehicle lamp is switched into a dipped headlight, the light intensity is weakened, and the light-emitting area is reduced.
6. The method for adjusting the vehicle lamp according to claim 2, wherein when the vehicle comes in, the preset vehicle lamp parameter is to switch to the dipped headlight, and the distance between the vehicle and the vehicle coming in and the size of the vehicle coming in are measured, and the preset vehicle lamp parameter is to adjust the area and the shape of the area where the vehicle lamp does not light; or when the vehicle arrives, the preset vehicle lamp parameter is switched into a dipped headlight, the running speed of the vehicle is measured, and the preset vehicle lamp parameter is used for adjusting the flicker interval time of the vehicle lamp.
7. The vehicle lamp adjusting method according to claim 2, wherein the preset road condition information further includes weather conditions.
8. The method for adjusting the vehicle lamp according to claim 2, wherein when the image acquisition information shows that the vehicle is in a steering state, the preset vehicle lamp parameter is that the shape of the light-emitting area is in a steering arrow shape; when the vehicle distance is measured, the preset vehicle lamp parameters are that the shape of the luminous area is a number matched with the speed.
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| JP4601033B2 (en) * | 2000-12-27 | 2010-12-22 | 株式会社エクォス・リサーチ | Light distribution control device |
| FR2846609B1 (en) * | 2002-10-30 | 2005-08-19 | Valeo Vision | METHOD FOR CONTROLLING THE LIGHT BEAMS EMITTED BY A LIGHTING DEVICE OF A VEHICLE AND SYSTEM FOR IMPLEMENTING SAID METHOD |
| FR2906362B1 (en) * | 2006-09-26 | 2009-01-02 | Valeo Vision Sa | METHOD FOR ANTICIPATED DETERMINATION OF A TURN ON A ROAD PORTION AND ASSOCIATED SYSTEM. |
| CN103692955A (en) * | 2013-12-16 | 2014-04-02 | 中国科学院深圳先进技术研究院 | Intelligent car light control method based on cloud computing |
| CN106541886A (en) * | 2016-10-26 | 2017-03-29 | 江苏金米智能科技有限责任公司 | A kind of headlight for vehicle light lamp automatic switching control system based on positioning |
| CN109720268B (en) * | 2017-10-30 | 2021-10-08 | 深圳市绎立锐光科技开发有限公司 | Car lamp adjusting control system and control method and car |
| CN110148294B (en) * | 2018-06-07 | 2021-08-03 | 腾讯大地通途（北京）科技有限公司 | Road condition state determining method and device |
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