CN116442956A - Cleaning method, device and system for electronic exterior rearview mirror and automobile - Google Patents
Cleaning method, device and system for electronic exterior rearview mirror and automobile Download PDFInfo
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- CN116442956A CN116442956A CN202310439042.4A CN202310439042A CN116442956A CN 116442956 A CN116442956 A CN 116442956A CN 202310439042 A CN202310439042 A CN 202310439042A CN 116442956 A CN116442956 A CN 116442956A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 242
- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000010438 heat treatment Methods 0.000 claims abstract description 120
- 238000004590 computer program Methods 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 14
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000008859 change Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
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- 239000007921 spray Substances 0.000 description 3
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- 239000012530 fluid Substances 0.000 description 2
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- 238000010926 purge Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
- B60S1/566—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens including wiping devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
- B60S1/60—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for signalling devices, e.g. reflectors
- B60S1/603—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for signalling devices, e.g. reflectors the operation of at least a part of the cleaning means being controlled by electric means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
The application relates to the field of automobiles, and provides a cleaning method, device and system for an electronic exterior rearview mirror and an automobile. The method comprises the following steps: acquiring a cleaning instruction, and heating the lens surface of the electronic exterior rearview mirror according to the cleaning instruction; after heating for a first preset period of time, acquiring a temperature difference between the surface temperature of the lens and the internal temperature of the electronic outside rear view mirror; and stopping the heating operation of the lens surface under the condition that the temperature difference is smaller than a preset temperature threshold value. Therefore, when the electronic outside rearview mirror is heated and cleaned, the influence of temperature on components of the electronic outside rearview mirror is reduced, and the service life of the electronic outside rearview mirror is prolonged.
Description
Technical Field
The application relates to the field of automobiles, in particular to a cleaning method, a cleaning device and a cleaning system for an electronic outside rear-view mirror and an automobile.
Background
In order to improve the convenience of automobile driving and reduce the frequency of traffic accidents, rearview mirrors are arranged on two sides of an automobile. The user can observe the obstacle information on the left side and the right side of the vehicle according to the rearview mirror, and the lane change or turning operation is carried out according to the obstacle information on the left side and the right side, so that the occurrence probability of traffic accidents is reduced. In order to further improve the convenience of use, an electronic outside mirror may be mounted on the left and right sides or the rear side of the vehicle, and the obstacle information in the scene may be determined from the left and right side images, the rear side images, and other azimuth images collected by the electronic outside mirror.
When the electronic outside rearview mirror is used for collecting images, the problem of fog on the lens of the electronic outside rearview mirror can occur, and the normal collection of the images is affected. In order to eliminate fog on the lens of the camera, a heating mode is generally adopted to volatilize water vapor on the lens. However, the long-time defogging may cause the temperature of the electronic outside rear view mirror to rise, which is disadvantageous for protecting the service life of the electronic outside rear view mirror.
Disclosure of Invention
In view of this, the embodiments of the present application provide a method, an apparatus, a system and an automobile for cleaning an electronic exterior mirror, so as to solve the problem that the service life of the electronic exterior mirror is not easy to be protected when the electronic exterior mirror is cleaned in the prior art.
A first aspect of an embodiment of the present application provides a method for cleaning an electronic exterior mirror, the method including:
acquiring a cleaning instruction, and heating the lens surface of the electronic exterior rearview mirror according to the cleaning instruction;
after heating for a first preset period of time, acquiring a temperature difference between the surface temperature of the lens and the internal temperature of the electronic outside rear view mirror;
and stopping the heating operation of the lens surface under the condition that the temperature difference is smaller than a preset temperature threshold value.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the obtaining a cleaning instruction, and performing a heating operation on a lens surface of the electronic outside rear view mirror according to the cleaning instruction includes:
acquiring the cleaning instruction through a central control screen, and transmitting the cleaning instruction through a cabin domain controller and a gateway;
and heating the lens surface of the electronic outer rearview mirror according to the cleaning instruction.
With reference to the first aspect, in a second possible implementation manner of the first aspect, after the step of performing a heating operation on a lens surface of the electronic outside rear view mirror according to the cleaning instruction, the method further includes:
the electronic outside rear view mirror transmits the collected image and/or cleaning state to a cabin control domain through a vehicle body domain controller and a gateway;
and displaying the image and/or the switch key state corresponding to the cleaning state through the cabin domain controller.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the performing a heating operation on a lens surface of the electronic outside rear view mirror according to the cleaning instruction includes:
performing cleaning operation on the lens surface of the electronic outer rearview mirror according to the cleaning instruction;
And after the cleaning operation is finished, heating the lens surface of the electronic exterior rearview mirror according to the cleaning instruction.
With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the acquiring a cleaning instruction includes:
acquiring an image acquired by the electronic exterior rearview mirror;
and generating the cleaning instruction when the image does not meet the preset definition requirement.
With reference to the fourth possible implementation manner of the first aspect, the cleaning instruction includes at least one of a heating instruction and a cleaning instruction, and in a fifth possible implementation manner of the first aspect, the generating the cleaning instruction when the image does not meet a preset sharpness requirement includes:
generating a heating instruction when the image is determined to be affected by fog and does not meet the preset definition requirement;
and generating a cleaning instruction and a heating instruction when the image is determined to be influenced by dust or graffiti and does not meet the preset definition requirement.
With reference to any one of the fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, after the performing a heating operation on a lens surface of the electronic outside rear view mirror according to the cleaning instruction, the method further includes:
Acquiring the continuous heating time length of the lens surface of the electronic exterior rearview mirror;
and stopping heating operation on the surface of the lens under the condition that the continuous heating time is longer than a second preset time, wherein the second preset time is longer than the first preset time.
A second aspect of embodiments of the present application provides a cleaning device for an electronic exterior mirror, the device comprising:
the heating unit is used for acquiring a cleaning instruction and heating the lens surface of the electronic exterior rearview mirror according to the cleaning instruction;
a temperature difference obtaining unit, configured to obtain a temperature difference between the lens surface temperature and the internal temperature of the electronic exterior mirror after heating for a first preset period of time;
and the heating stopping unit is used for stopping heating operation on the lens surface under the condition that the temperature difference is smaller than a preset temperature threshold value.
A third aspect of an embodiment of the present application provides a cleaning system for an electronic exterior rear view mirror, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of the first aspects when the computer program is executed.
A fourth aspect of an embodiment of the present application provides an automobile comprising the cleaning system of the electronic exterior rear view mirror of the third aspect.
A fifth aspect of the embodiments of the present application provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method according to any of the first aspects.
Compared with the prior art, the embodiment of the application has the beneficial effects that: according to the method and the device, the cleaning instruction of the electronic exterior rearview mirror is obtained, the lens surface of the electronic exterior rearview mirror is heated based on the cleaning instruction, the internal temperature and the lens surface temperature of the electronic exterior rearview mirror are obtained, the temperature difference and the temperature threshold value of the electronic exterior rearview mirror are judged, when the temperature difference is smaller than the temperature threshold value, the lens is stopped being heated, so that the influence of the temperature on components of the electronic exterior rearview mirror can be reduced when the electronic exterior rearview mirror is heated and cleaned, and the service life of the electronic exterior rearview mirror is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic implementation flow chart of a cleaning method for an electronic exterior mirror according to an embodiment of the present application;
fig. 2 is a schematic flow chart of an implementation of a method for heating a lens surface according to an embodiment of the present application;
FIG. 3 is a schematic diagram showing changes in the surface temperature and the internal temperature of a lens according to an embodiment of the present disclosure;
fig. 4 is a schematic implementation flow chart of a cleaning state feedback method according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a cleaning interaction of an electronic exterior rear view mirror according to an embodiment of the present disclosure;
FIG. 6 is a schematic view of a cleaning apparatus for an electronic exterior mirror according to an embodiment of the present application;
fig. 7 is a schematic view of a cleaning system for an electronic outside rear view mirror according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
In order to illustrate the technical solutions described in the present application, the following description is made by specific examples.
With the development of automobile technology, the intelligent degree of automobiles is also higher and higher. For example, the traditional rearview mirror is replaced by an electronic outer rearview mirror, so that the blind area of the visual field of a user can be reduced, the user can obtain a more comprehensive visual field of a scene, and the safety and convenience of automobile driving are improved. However, when using an electronic exterior mirror such as an electronic exterior mirror, the surface lens of the camera may be fogged, or the surface may be blocked by dust, or may be graffiti, which may affect the definition of the image collected by the electronic exterior mirror, and thus the electronic exterior mirror needs to be cleaned in time. However, when the electronic exterior mirror is defogged and heated, the components of the electronic exterior mirror may be affected, which is not beneficial to protecting the service life of the electronic exterior mirror.
Based on this, the embodiment of the application proposes a cleaning method for an electronic exterior rear view mirror, as shown in fig. 1, the method includes:
in S101, a cleaning instruction is acquired, and a heating operation is performed on a lens surface of the electronic outside rear view mirror according to the cleaning instruction.
In the embodiment of the application, the cleaning instruction can be obtained by detecting the triggering state of the cleaning key, obtaining the cleaning instruction based on the triggering state, or can be automatically triggered and obtained according to the detection result of the image by detecting the image acquired by the electronic outside rear view mirror.
The cleaning key can be displayed through a central control screen of the automobile, can be displayed through other display screens, or can be set to be a cleaning key with a physical structure. And acquiring a cleaning instruction for vehicle-mounted shooting by detecting the triggering state of the set cleaning button.
When the electronic outside rear-view mirror comprises a plurality of cleaning buttons, a plurality of cleaning buttons can be correspondingly arranged. According to the cleaning requirements of different electronic outside rearview mirrors, the electronic outside rearview mirrors are precisely controlled. Alternatively, in a possible implementation, a total cleaning button may be included, through which all or part of the electronic outside rear-view mirror is cleaned.
When the cleaning operation instruction is triggered by the cleaning key, for example, the lens surface of the electronic exterior rearview mirror is heated, the implementation flow may be as shown in fig. 2, and includes:
in S201, a cleaning instruction is acquired by the cabin domain controller through the center screen.
Wherein the cabin domain controller mainly controls various electronic information systems in the intelligent cabin of the vehicle. Including, for example, central control systems, in-vehicle infotainment systems, head-up systems, seating systems, instrumentation systems, rearview mirror systems, driving behavior monitoring systems, navigation systems, and the like. Through the central control screen of the central control system in the cabin domain controller, operation instructions input by a user can be received, including cleaning instructions and the like. The cleaning instruction is acquired through the central control screen of the cabin domain controller, so that the convenience of operation can be improved.
In S202, a cleaning command is sent to the electronic outside rear view mirror through a gateway and a body area controller.
The automobile body domain controller is mainly used for controlling automobile body functions of an automobile, including but not limited to controlling headlamps, rear lamps, interior lights, door locks, windows, sunroofs, wipers, electric trunk, intelligent keys, air conditioners, antennas, gateway communication, electronic outside rear-view mirrors and the like of the automobile. The gateway can receive the cleaning instruction sent by the cabin domain controller, and the vehicle body domain controller can convert the cleaning instruction into the cleaning instruction capable of directly controlling the electronic outside rearview mirror. For example, the cleaning instructions may be converted into cleaning instructions that may directly control the electronic outside mirrors, including the electronic left outside mirror and the electronic right outside mirror. And sending a cleaning instruction to the electronic left outer rearview mirror and/or the electronic right outer rearview mirror, and controlling the cleaning operation of the electronic left outer rearview mirror and/or the electronic right outer rearview mirror.
In S203, a heating operation is performed on the lens surface of the electronic outside rear view mirror according to the cleaning instruction.
After the electronic outside rear-view mirror receives the cleaning instruction, a corresponding cleaning operation can be executed according to the cleaning instruction. For example, the cleaning instructions may include a rinse instruction and a heat instruction.
After the electronic outer rearview mirror receives the cleaning instruction, the spray gun can be controlled to spray water to the lens surface of the electronic outer rearview mirror so as to clean sundries such as dust or graffiti on the lens surface of the electronic outer rearview mirror. The cleaning time period can be preset. For example, the cleaning period may be any period of time from 30 seconds to 2 minutes. Alternatively, the cleaning time period may be determined according to the degree to which the image is affected. For example, the degree to which the current electronic outside rear view mirror is blocked may be determined according to the sharpness of the image or the size of the effective area that is acquired by the electronic outside rear view mirror. When the sharpness of the image is lower or the effective area of the image is smaller, the degree of occlusion is large, and the cleaning time period can be increased. When the definition of the image is higher or the effective area of the image is larger, the cleaning time period can be correspondingly reduced.
Alternatively, in a possible implementation manner, different cleaning durations may be determined according to the cleaning efficiency of the image in the cleaning process. For example, in the case of the same definition or the same effective area, a shorter cleaning period may be selected if the cleaning efficiency is higher, and a longer cleaning period may be selected if the cleaning efficiency is lower. The cleaning efficiency may be determined according to a change speed of the sharpness of an image acquired during the cleaning process or a change speed of an effective area. The faster the rate of change, the higher the cleaning efficiency. By determining the cleaning efficiency of the electronic outside rear-view mirror, the corresponding cleaning time length can be accurately determined, so that the cleaning requirements of different shielding objects can be met.
In a possible implementation, the sharpness of the image or the size of the effective area acquired in real time may also be based on. And determining whether the cleaning of the lens surface of the electronic outside rear-view mirror is finished currently or not through the definition of the acquired image or the size of the effective area in real time.
When the electronic outer rearview mirror receives the heating instruction, the heating device of the electronic outer rearview mirror can be controlled to heat the lens surface of the electronic outer rearview mirror so as to dry the water drops on the lens surface of the cleaned electronic outer rearview mirror or dry the fog on the lens surface of the electronic outer rearview mirror. Accordingly, the heating period may be a predetermined period. For example, it may be set that the lens surface of the electronic outside rear view mirror is kept dry by a heating operation for a predetermined period of time after the water spray cleaning.
Alternatively, the heating time period of the electronic outside rear view mirror may be determined according to the inclination angle of the lens surface of the electronic outside rear view mirror. For example, the smaller the inclination angle of the lens surface for the electronic outside rear view mirror, the longer the heating period is correspondingly increased. The larger the inclination angle of the lens surface of the electronic outside rear-view mirror is, the longer the heating time is correspondingly reduced.
Or, the heating duration of the heating can be determined according to the change rate of the definition of the image acquired by the electronic outside rearview mirror. The greater the rate of change of the sharpness of the image, the longer the heating time can be correspondingly reduced; the smaller the rate of change of the sharpness of the image, the longer the heating time can be increased accordingly. Or, the definition of the acquired image can be detected in real time until the detected definition meets the preset requirement, and the heating of the electronic outside rearview mirror is stopped.
In a possible implementation manner, the embodiment of the application may further determine an operation to be performed by the cleaning instruction according to the acquired image. For example, the abnormal type affecting the image collected by the electronic exterior rear view mirror can be determined according to the preset fog feature, dust feature and graffiti feature. When the current anomaly type is identified as dust occlusion or graffiti occlusion, the cleaning instructions may include a purge instruction and a heating instruction. The cleaning instructions may include heating instructions when the current anomaly type is identified as mist shielding.
The electronic outside rear view mirror in the embodiment of the application may include a camera such as an electronic outside rear view mirror. A heating device is arranged at the lens of the electronic outer rearview mirror. The heating means may comprise a resistance wire or the like. The heating means may be arranged around the lens surface of the electronic exterior mirror or at other locations where heating of the lens surface is possible. The temperature of the lens surface of the electronic exterior rearview mirror can be increased by the heat emitted by the heating device, so that the evaporation of water drops or water vapor on the lens surface can be accelerated, the electronic exterior rearview mirror can effectively acquire clear images, and the driving safety is improved.
In a possible implementation manner, the embodiment of the application may further obtain the cleaning instruction through an automatic triggering manner. For example, images may be acquired through the electronic exterior mirror at predetermined time intervals. When the definition of the acquired image does not meet the preset definition requirement or the effective image area of the acquired image does not meet the preset area size requirement, triggering and obtaining a cleaning instruction.
When the definition of the image does not meet the preset definition requirement, for example, the definition of the image is smaller than a preset definition threshold, or the effective image area of the acquired image does not meet the requirement of the preset area size, for example, the area of the effective image area is smaller than a preset area threshold, the reason for causing the image abnormality can be further determined. When the image is affected by fog and does not meet the preset definition requirement, a heating instruction can be triggered and obtained. When the image is affected by dust or graffiti and does not meet the preset definition requirement or the requirement of the effective area, a cleaning instruction and a heating instruction can be triggered. The execution duration of the purge instruction may be determined based on the magnitude of the impact.
In S102, after heating for a first preset period of time, a temperature difference between the lens surface temperature and the internal temperature of the electronic outside mirror is obtained.
Please refer to the temperature change schematic diagram shown in fig. 3, when the heating device starts heating the electronic exterior mirror, the difference between the internal temperature of the electronic exterior mirror and the temperature of the lens surface is small. In order to reduce the misoperation, after the heating device performs the heating operation on the lens surface of the electronic exterior rearview mirror for a first preset period of time, the temperature difference between the lens surface temperature T1 and the internal temperature T2 (the dotted line in the figure) of the electronic exterior rearview mirror can be determined after the lens surface temperature T1 (the solid line in the figure) of the electronic exterior rearview mirror is quickly increased to a certain extent.
The internal temperature of the electronic exterior mirror may include a temperature of an area where an internal chip of the electronic exterior mirror is located. For example, the electronic exterior mirror internal temperature includes the temperature at the location of the photosensitive chip or circuit board. The internal environment temperature of the electronic exterior mirror can be correspondingly determined through the internal temperature of the electronic exterior mirror.
The lens surface temperature is the temperature at which the heating device performs drying operation on the electronic exterior rearview mirror. A temperature sensor may be provided at a position close to the lens surface of the electronic outside rear view mirror to obtain the lens surface temperature of the electronic outside rear view mirror.
As shown in fig. 3, when the heating means provided at the lens surface starts to heat, the lens surface temperature T1 of the electronic outside rear view mirror increases relatively rapidly. The temperature difference DeltaT between the lens surface temperature T1 and the internal temperature T2 of the electronic outer rearview mirror gradually increases from small to small. When the temperature difference Δt between the lens surface temperature T1 and the internal temperature T2 of the electronic outside rear view mirror is greater than the preset temperature threshold Th, it may be determined whether the heating operation of the lens surface needs to be stopped according to the acquired temperature difference Δt.
Wherein the selection of the first preset duration may be related to a preset temperature threshold. When the preset temperature threshold is larger, the first preset duration is longer, and the preset temperature threshold is smaller, the first preset duration can be smaller.
When the first preset time period is determined, according to the heating efficiency of the heating device, a temperature difference between the lens surface temperature of the electronic exterior rearview mirror and the internal temperature of the electronic exterior rearview mirror is determined, wherein the temperature difference is equal to a first time period required by a preset temperature threshold value, or the lens surface temperature of the electronic exterior rearview mirror is greater than the internal temperature of the electronic exterior rearview mirror, and the temperature difference between the lens surface temperature of the electronic exterior rearview mirror and the internal temperature of the electronic exterior rearview mirror is equal to a first time period required by the preset temperature threshold value. The first preset duration may be a value greater than the first duration.
For a more accurate determination of the first preset time period, it is also possible to determine the maximum temperature of the lens surface of the electronic outside rear view mirror. That is, the temperature of the lens surface of the electronic outer rearview mirror gradually rises along with the heating of the heating device. When the heat quantity increased by the heating device is the same as the heat quantity lost by the lens surface, the lens surface temperature reaches the highest temperature. The lens surface temperature of the electronic exterior mirror can be detected, the heating device starts to heat, the maximum temperature is reached, the end point is reached, and the second time period required for the lens surface temperature to reach the maximum temperature is determined. The first preset time period may be set to be smaller than the second time period.
Of course, it is not necessarily limited thereto, and a time period longer than the second time period may be selected as the first preset time period. For example, any time period corresponding to a case that the temperature difference between the lens surface temperature and the internal temperature of the electronic outside rear view mirror is greater than a preset temperature threshold may be selected as the second time period.
In S103, in a case where the temperature difference is smaller than a preset temperature threshold, the heating operation of the lens surface is stopped.
As shown in fig. 3, with continued heating of the heating device, the internal temperature T2 of the electronic outside mirror is gradually increased at a small rate due to the heat conduction of the device. The lens surface temperature T1 of the electronic outside rear view mirror directly used for heating is raised relatively quickly. When the lens surface temperature T1 rises to the highest value, the heat provided by the heating device and the heat lost to the environment from the lens surface are in dynamic balance, and at this time, the lens surface temperature T1 does not increase significantly. While the internal temperature T2 of the electronic exterior mirror is still increasing at a smaller rate. When the temperature difference DeltaT between the lens surface temperature T1 of the electronic exterior rearview mirror and the internal temperature T2 of the electronic exterior rearview mirror is smaller than the preset temperature threshold Th, the heating operation on the lens surface can be stopped, so that the internal temperature of the electronic exterior rearview mirror cannot be continuously increased, and the influence of continuous heating of the heating device on internal components of the electronic exterior rearview mirror is reduced.
In a possible implementation, the temperature threshold may be any temperature value in the range of 2-8 degrees celsius. For example, temperature values of 2 degrees celsius, 3 degrees celsius, 4 degrees celsius, 5 degrees celsius, 6 degrees celsius, 7 degrees celsius, 8 degrees celsius, etc. may be included.
In a possible implementation, in order to reduce the influence of the continuous heating on the internal components of the electronic exterior rear view mirror, the continuous heating duration of the lens surface of the electronic exterior rear view mirror may also be obtained. The duration of the heating is compared with a second preset duration. If the duration of heating is longer than the second preset duration, heating may be stopped. For example, the second preset duration may be any duration greater than 20 minutes. For example, the time period may be 25 minutes, 30 minutes, 35 minutes, or the like.
In a possible implementation, to avoid frequent triggering of the cleaning instructions. After the electronic exterior mirror has been cleaned once, a time interval for re-triggering can be set. By setting the time interval, the probability that the electronic outside rearview mirror cannot work normally can be reduced, and the waste of clean resources can be reduced. For example, when the obstruction cannot be removed by the cleaning operation, unnecessary repeated cleaning operations can be reduced. The time interval may be related to a driving environment of the vehicle. In a driving environment which is dirty, such as a construction site or desert where dust is more, the time interval for triggering cleaning again can be reduced. In a city, a highway, or other driving environment where the driving environment is clean, the time interval for triggering cleaning again can be increased. When the cleaning of the shielding object on the lens surface of the electronic outside rear-view mirror cannot be completed through cleaning, abnormal alarm information can be generated, so that a user can timely notice the current abnormal state.
In order to facilitate the user to know the current cleaning state in time during the cleaning process, the current cleaning state can be fed back in real time by the method shown in fig. 4 during the cleaning instruction execution process, including:
in S401, the collected image and/or cleaning status is transmitted by the electronic outside rear view mirror to the cabin control domain through the body domain controller and gateway.
The electronic outside rear view mirror can perform corresponding cleaning operations according to the cleaning instructions. For example, the electronic outside mirror may perform a heating operation according to a heating instruction in the cleaning instruction, or clean the lens surface according to a cleaning instruction. The cleaning state of the electronic exterior mirror can be correspondingly determined according to the instruction execution information of the electronic exterior mirror. For example, the cleaning state may include a cleaning state in which heating is being performed, heating is not performed, heating is ended, cleaning is being performed, cleaning is not performed, cleaning is ended, and the like.
In S402, the image and/or the on-off key state corresponding to the cleaning state is displayed by the cabin controller.
According to the cleaning state fed back by the electronic outside rear-view mirror and the collected image, the cleaning state and the collected image can be transmitted to the cabin area controller through the vehicle body area controller and the gateway. So as to display the current cleaning state and the display effect of the image acquired by the current cleaning state through the central control system included in the cabin domain controller. The user can conveniently and timely know the current cleaning state and the cleaning effect.
Fig. 5 is an interactive flow chart of a cleaning method for an electronic exterior mirror according to an embodiment of the present application. As shown in fig. 5, the cleaning method includes automatic cleaning and manual cleaning. The interaction flow corresponding to the upper half part in fig. 5 is an automatic cleaning flow, and the interaction flow corresponding to the lower half part is a manual cleaning flow.
In the automatic cleaning process, the operation instruction of the user can be received through the central control screen of the cabin area controller. For example, whether an automatic cleaning instruction input by a user is received or not can be determined through touch detection of control keys arranged in the central control screen, and an automatic cleaning switch is turned on.
When the cabin domain controller detects that the automatic cleaning switch is turned on, a command for turning on the automatic cleaning switch can be sent to the vehicle body domain controller through the gateway. And sending an instruction for opening the automatic cleaning switch to the electronic outside rear-view mirror through the vehicle body domain controller. The electronic outside rear view mirror may include an electronic left outside rear view mirror and an electronic right outside rear view mirror. And judging whether the cleaning requirement is met at present by the electronic exterior rearview mirror according to preset cleaning starting conditions. For example, whether the cleaning requirement is satisfied may be determined by the size of the sharpness of the image captured by the electronic outside rear view mirror. When the definition of the image collected by the electronic exterior rearview mirror is smaller than a preset definition threshold, or the area of the effective area of the image collected by the electronic exterior rearview mirror is smaller than a preset area threshold, the cleaning requirement is determined to be met, and a cleaning instruction can be triggered and obtained.
When the trigger to acquire the cleaning instruction is determined, the type of the shielding object can be determined first, and the instruction included in the cleaning instruction is determined according to the type of the shielding object. For example, the type of the occlusion object on the lens surface of the current electronic exterior rear view mirror can be determined according to the image features presented when the dust is occluded, the image features presented when the graffiti is occluded and the image features presented when the fog is occluded. When the type of obstruction is dust or graffiti, the cleaning instructions may include a wash instruction and a heat instruction. When the type of shade is mist, the cleaning instructions may include heating instructions. In a possible implementation, when the type of the shutter is graffiti or dust, the type of the cleaning liquid ejected in the cleaning instruction may also be determined according to the type of the shutter. For example, the type of cleaning fluid may include water, organic cleaning fluids, and the like. When the shielding object is graffiti, the organic cleaning liquid can be sprayed, and when the shielding object is dust or mud, the shielding object can be cleaned by spraying water.
If the cleaning requirement is met currently and the cleaning operation and the heating operation are included, namely, the cleaning instruction comprises the cleaning instruction and the heating instruction, water spraying can be started to perform the cleaning operation. When the lens surface of the camera is cleaned, the cleaning time can be determined according to the type of the shielding object. For example, the cleaning time period of the dust and the cleaning time period of the graffiti may be predetermined, and the cleaning time period of the graffiti is longer than the cleaning time period of the dust. In a possible implementation, the cleaning efficiency may also be determined according to the change speed of the definition of the image during the cleaning process, or the change speed of the effective area. And determining the time length required by the current cleaning according to the determined cleaning efficiency. Or, the image collected by the electronic outside rearview mirror in the cleaning process can be detected in real time, and when the definition of the collected image meets the preset definition requirement or the effective area meets the preset area requirement, the cleaning is stopped.
After a predetermined cleaning period, for example, 1 minute, the water spraying operation may be turned off, and the heating device may be turned on to heat the lens surface of the electronic outside rear view mirror.
The heating time period of the heating operation may be determined according to a preset judgment condition. For example, the lens surface temperature of the electronic outside mirror may be obtained, and the internal temperature of the electronic outside mirror may be obtained. After heating for a first preset period of time, calculating the temperature difference between the surface temperature of the lens and the internal temperature of the electronic outside rear view mirror, and ending the heating operation when the temperature difference gradually decreases to a preset temperature threshold or is smaller than the preset temperature threshold. After the lens is heated for a first preset time period, the temperature difference between the surface temperature of the lens and the internal temperature of the electronic outside rear view mirror is greater than a preset first temperature threshold, and in this case, whether the heating operation needs to be finished or not can be determined according to the comparison result of the temperature difference and the temperature threshold. For example, in the case where the temperature difference is less than or equal to the temperature threshold value, the heating operation is ended.
In a possible implementation, it may also be determined whether the heating operation needs to be ended according to the duration of the heating operation. For example, in the case where the continuous heating time period is longer than the second preset time period, the heating operation is ended.
In the process of executing cleaning operation by the electronic outside rearview mirror, the electronic outside rearview mirror can feed back the real-time cleaning state to the cabin domain controller through the vehicle body domain controller and the gateway, and display the current cleaning state through keys in a central control screen of the cabin domain controller or through images or characters. In a possible implementation, an image corresponding to the current cleaning effect of the electronic exterior mirror may also be displayed.
In the manual cleaning process, the cabin domain controller receives a cleaning instruction input by a user through the central control screen, including, for example, turning on a cleaning switch. In contrast to the automatic cleaning process, the manual cleaning process does not require detection of conditions for judging start of cleaning. In the manual cleaning process, the cabin domain controller transmits an instruction of opening a cleaning switch to the electronic outside rearview mirror through the gateway and the vehicle body domain controller. When the cleaning instruction includes a heating instruction of the cleaning instruction, the electronic outside rear view mirror starts spraying water according to the cleaning instruction, and after a predetermined period of time, for example, 1 minute, the spraying of water is ended and the heating is started. The electronic outside rearview mirror can feed back the cleaning state in the cleaning process to the cabin area controller through the vehicle body area controller and the gateway, and the corresponding cleaning state is displayed through the center control screen through the cabin area controller. For example, the corresponding cleaning state may be displayed by different on-off states of the keys, or the current cleaning effect state may also be displayed according to the image collected by the camera.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.
Fig. 6 is a schematic view of a cleaning device for an electronic exterior mirror according to an embodiment of the present application, as shown in fig. 6, the device includes:
a heating unit 601, configured to obtain a cleaning instruction, and perform a heating operation on a lens surface of the electronic outside rear view mirror according to the cleaning instruction;
a temperature difference obtaining unit 602, configured to obtain a temperature difference between the lens surface temperature and the internal temperature of the electronic exterior mirror after heating for a first preset period of time;
and a heating stopping unit 603 for stopping the heating operation of the lens surface in the case that the temperature difference is smaller than a preset temperature threshold.
The cleaning device for the electronic outside rear-view mirror shown in fig. 6 corresponds to the cleaning method for the electronic outside rear-view mirror shown in fig. 1, and a detailed description thereof will not be repeated.
Fig. 7 is a schematic view of a cleaning system for an electronic exterior mirror according to an embodiment of the present application. As shown in fig. 7, the cleaning system 7 of the electronic outside rear view mirror of this embodiment includes: a processor 70, a memory 71 and a computer program 72 stored in said memory 71 and executable on said processor 70, for example a cleaning program for an electronic exterior mirror. The processor 70, when executing the computer program 72, implements the steps of the various electronic outside rear-view mirror cleaning method embodiments described above. Alternatively, the processor 70, when executing the computer program 72, performs the functions of the modules/units of the apparatus embodiments described above.
By way of example, the computer program 72 may be partitioned into one or more modules/units that are stored in the memory 71 and executed by the processor 70 to complete the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing a specific function for describing the execution of the computer program 72 in the cleaning system 7 of the electronic outside rear view mirror.
The cleaning system of the electronic exterior rear view mirror may include, but is not limited to, a processor 70, a memory 71. It will be appreciated by those skilled in the art that fig. 7 is merely an example of the cleaning system 7 for an electronic exterior rear view mirror and is not intended to be limiting of the cleaning system 7 for an electronic exterior rear view mirror, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the cleaning system for an electronic exterior rear view mirror may also include input and output devices, network access devices, buses, etc.
The processor 70 may be a central processing unit (Central Processing Unit, CPU), or may be another general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field-programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 71 may be an internal storage unit of the cleaning system 7 of the electronic exterior mirror, such as a hard disk or a memory of the cleaning system 7 of the electronic exterior mirror. The memory 71 may be an external storage device of the cleaning system 7 of the electronic outside mirror, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like provided on the cleaning system 7 of the electronic outside mirror. Further, the memory 71 may also comprise both an internal memory unit and an external memory device of the cleaning system 7 of the electronic exterior rear view mirror. The memory 71 is used for storing the computer program and other programs and data required for the cleaning system of the electronic outside rear view mirror. The memory 71 may also be used for temporarily storing data that has been output or is to be output.
In a possible implementation manner, an embodiment of the present application provides an automobile, which includes the cleaning system of the electronic exterior rear view mirror. The automobile adopts the cleaning method of the electronic outer rearview mirror, can effectively clean the electronic outer rearview mirror, and protects the service life of the electronic outer rearview mirror.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and the division of the modules or units, for example, is merely a logical functional division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. With such understanding, the present application implements all or part of the flow of the method of the above embodiments, and may also be implemented by hardware associated with computer program instructions, where the computer program may be stored on a computer readable storage medium, where the computer program, when executed by a processor, implements the steps of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium may include content that is subject to appropriate increases and decreases as required by jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is not included as electrical carrier signals and telecommunication signals.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. A method of cleaning an electronic exterior rear view mirror, the method comprising:
acquiring a cleaning instruction, and heating the lens surface of the electronic exterior rearview mirror according to the cleaning instruction;
after heating for a first preset period of time, acquiring a temperature difference between the surface temperature of the lens and the internal temperature of the electronic outside rear view mirror;
and stopping the heating operation of the lens surface under the condition that the temperature difference is smaller than a preset temperature threshold value.
2. The method according to claim 1, wherein the acquiring the cleaning instruction, and performing a heating operation on the lens surface of the electronic outside rear view mirror according to the cleaning instruction, includes:
Acquiring the cleaning instruction through a central control screen, and transmitting the cleaning instruction through a cabin domain controller and a gateway;
and heating the lens surface of the electronic outer rearview mirror according to the cleaning instruction.
3. The method of claim 1, further comprising, after the step of heating the lens surface of the electronic outside rear view mirror according to the cleaning instruction:
acquiring an image and/or a cleaning state acquired by the electronic exterior rearview mirror;
the image and/or the cleaning status is transmitted to a central screen display via a gateway and a cockpit area controller.
4. The method of claim 1, wherein prior to performing a heating operation on a lens surface of the electronic exterior rear view mirror in accordance with the cleaning instructions, the method further comprises:
and cleaning the lens surface of the electronic outer rearview mirror according to the cleaning instruction.
5. The method of claim 1, wherein the acquiring the cleaning instruction comprises:
acquiring an image acquired by the electronic exterior rearview mirror;
and generating the cleaning instruction when the image does not meet the preset definition requirement.
6. The method of claim 5, wherein the cleaning instructions include at least one of a heating instruction and a cleaning instruction, the generating the cleaning instructions when the image does not meet a preset sharpness requirement comprising:
Generating a heating instruction when the image is determined to be affected by fog and does not meet the preset definition requirement;
and generating a cleaning instruction and a heating instruction when the image is determined to be influenced by dust or graffiti and does not meet the preset definition requirement.
7. The method according to any one of claims 1-6, further comprising, after the heating operation of the lens surface of the electronic outside rear view mirror according to the cleaning instruction:
acquiring the continuous heating time length of the lens surface of the electronic exterior rearview mirror;
and stopping heating operation on the surface of the lens under the condition that the continuous heating time is longer than a second preset time, wherein the second preset time is longer than the first preset time.
8. A cleaning device for an electronic exterior mirror, the device comprising:
the heating unit is used for acquiring a cleaning instruction and heating the lens surface of the electronic exterior rearview mirror according to the cleaning instruction;
a temperature difference obtaining unit, configured to obtain a temperature difference between the lens surface temperature and the internal temperature of the electronic exterior mirror after heating for a first preset period of time;
and the heating stopping unit is used for stopping heating operation on the lens surface under the condition that the temperature difference is smaller than a preset temperature threshold value.
9. A cleaning system for an electronic exterior rear view mirror comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 7 when the computer program is executed by the processor.
10. An automobile comprising the electronic exterior rear view mirror cleaning system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310439042.4A CN116442956A (en) | 2023-04-21 | 2023-04-21 | Cleaning method, device and system for electronic exterior rearview mirror and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310439042.4A CN116442956A (en) | 2023-04-21 | 2023-04-21 | Cleaning method, device and system for electronic exterior rearview mirror and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN116442956A true CN116442956A (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310439042.4A Pending CN116442956A (en) | 2023-04-21 | 2023-04-21 | Cleaning method, device and system for electronic exterior rearview mirror and automobile |
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| Country | Link |
|---|---|
| CN (1) | CN116442956A (en) |
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- 2023-04-21 CN CN202310439042.4A patent/CN116442956A/en active Pending
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