CN115091917A

CN115091917A - Vehicle window anti-fog method and device, vehicle equipment and computer readable storage medium

Info

Publication number: CN115091917A
Application number: CN202210728614.6A
Authority: CN
Inventors: 徐蔺
Original assignee: Avatr Technology Chongqing Co Ltd
Current assignee: Avatr Technology Chongqing Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-09-23

Abstract

The application provides a vehicle window anti-fog method, a vehicle window anti-fog device, vehicle equipment and a computer readable storage medium, wherein the method comprises the following steps: acquiring historical driving records of a vehicle, and determining the starting time of a temperature detection device of the vehicle based on the historical driving records; when the current time reaches the opening time, acquiring the current environment temperature, the external temperature of the car window and the internal temperature of the car window; when the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window meet the condition of starting an anti-fog function, determining an anti-fog mode; and controlling the vehicle to start the anti-fog function in the anti-fog mode. So, can realize the automated control of antifog function, avoid just beginning the defogging after the fogging and cause the time delay, realize the effect of prevention fogging to antifog function need not driver manual operation, ensures safe driving.

Description

Vehicle window anti-fog method and device, vehicle equipment and computer readable storage medium

Technical Field

The application relates to the technical field of data processing, and relates to but is not limited to a vehicle window anti-fog method, a vehicle window anti-fog device, vehicle equipment and a computer-readable storage medium.

Background

With the increasing improvement of living standard and the increasing popularization of automobiles, the requirements of people on automobile safety, comfort and the like are higher and higher. Under the condition of certain air humidity, when a vehicle enters or exits an underground garage, the temperature difference between the external environment temperature and the internal temperature of the vehicle suddenly changes, the temperatures of two sides of a vehicle window are different, the saturated vapor pressure of the surface moisture of the side with low temperature is lower than the vapor pressure of the surrounding environment, and the water vapor can be gathered on the surface of the glass and dialyzed out in the form of tiny water drops to form common mist. Generally, when a front windshield is fogged, a driver is required to judge whether the front windshield is fogged outside the windshield or the front windshield is fogged, and corresponding defogging measures are taken according to a fogged state. Like this, not only requiring driver's experience higher, there is certain maloperation risk, moreover, just begin the defogging after the fog, treat that fog elimination has certain hysteresis quality, defogging operation also disturbs driver's attention very easily, has certain potential safety hazard.

Disclosure of Invention

In view of this, the embodiment of the present application provides a vehicle window anti-fog method, a vehicle window anti-fog device, a vehicle device, and a computer-readable storage medium.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides an anti-fog method for a vehicle window, which comprises the following steps:

acquiring historical driving records of a vehicle, and determining the starting time of a temperature detection device of the vehicle based on the historical driving records;

when the current time reaches the opening time, acquiring the current environment temperature, the external temperature of the car window and the internal temperature of the car window;

when the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window meet the condition of starting an anti-fog function, determining an anti-fog mode;

and controlling the vehicle to start the anti-fog function in the anti-fog mode.

In some embodiments, the method further comprises:

acquiring ambient humidity, wherein the ambient humidity is outdoor humidity of a current parking position of the vehicle;

correspondingly, when ambient temperature, the temperature outside the door window and the temperature in the door window satisfy the condition of starting antifogging function, confirm antifogging mode, include:

and when the environment humidity, the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window meet the condition of starting an anti-fog function, determining an anti-fog mode.

In some embodiments, the determining the turn-on time of the temperature detection device of the vehicle based on the historical driving history includes:

acquiring a current parking position of the vehicle;

determining the expected starting time of the vehicle according to the historical driving record and the current parking position;

and determining the starting time of the temperature detection device of the vehicle based on the predicted starting time and the preset anti-fog time.

In some embodiments, said determining a predicted launch time of said vehicle based on said historical driving history and said current parking position comprises:

according to the current parking position, screening out historical driving sub records from the historical driving records, wherein the historical driving sub records comprise the historical parking position which is the same as the current parking position;

and determining the predicted starting time of the vehicle according to the historical starting time included in the historical driving sub record.

In some embodiments, the determining that the current time reaches the opening time, acquiring the current ambient temperature, the window outside temperature, and the window inside temperature includes:

when the current time reaches the starting time, sending a request message for acquiring the ambient temperature to first equipment, wherein the request message carries the current parking position of the vehicle;

receiving a response message sent by the first device, wherein the response message carries an ambient temperature, and the ambient temperature is an outdoor temperature of the current parking position;

acquiring the temperature outside the vehicle window by utilizing a first temperature detection device arranged outside the vehicle window;

and acquiring the temperature in the car window by utilizing a second temperature detection device arranged in the car window.

In some embodiments, when the ambient temperature, the outside temperature and the inside temperature satisfy a condition for starting an anti-fog function, determining an anti-fog mode includes:

when the ambient temperature is higher than a first preset temperature, determining a first temperature difference between the ambient temperature and the temperature outside the vehicle window; when the first temperature difference is larger than a first temperature difference threshold value, determining the anti-fog mode as a refrigeration anti-fog mode; and/or the presence of a gas in the gas,

when the environment temperature is lower than a second preset temperature, determining a second temperature difference between the temperature in the vehicle window and the environment temperature; and when the second temperature difference is larger than a second temperature difference threshold value, determining the anti-fog mode as a heating anti-fog mode.

In some embodiments, the determining the anti-fog mode when the ambient humidity, the ambient temperature, the outside temperature and the inside temperature satisfy a condition for starting an anti-fog function includes:

when the environment humidity is greater than a preset humidity threshold value and the environment temperature is greater than a first preset temperature, determining a first temperature difference between the environment temperature and the temperature outside the vehicle window; when the first temperature difference is larger than a first temperature difference threshold value, determining the anti-fog mode as a refrigeration anti-fog mode; and/or the presence of a gas in the gas,

when the environment humidity is greater than a preset humidity threshold value and the environment temperature is less than a second preset temperature, determining a second temperature difference between the temperature in the vehicle window and the environment temperature; and when the second temperature difference is larger than a second temperature difference threshold value, determining the anti-fog mode as a heating anti-fog mode.

In some embodiments, said controlling said vehicle to turn on said anti-fog function in said anti-fog mode comprises:

when the anti-fog mode is a refrigeration anti-fog mode, controlling an air conditioning device of the vehicle to start working in a cold air and dehumidification mode;

and when the anti-fog mode is a heating anti-fog mode, controlling the air conditioning device of the vehicle to start working in a warm air mode.

The embodiment of the application provides a door window anti-fogging device, the device includes:

the first acquisition module is used for acquiring the historical driving record of the vehicle;

the first determination module is used for determining the starting time of the temperature detection device of the vehicle based on the historical driving record;

the second acquisition module is used for acquiring the current environment temperature, the external temperature of the car window and the internal temperature of the car window when the current time reaches the opening time;

the second determining module is used for determining an anti-fog mode when the environment temperature, the temperature outside the car window and the temperature inside the car window meet the condition of starting an anti-fog function;

and the control module is used for controlling the vehicle to start the anti-fog function in the anti-fog mode.

An embodiment of the present application provides a vehicle device, including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;

the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the steps of the vehicle window anti-fog method.

The embodiment of the application provides a computer-readable storage medium, wherein at least one executable instruction is stored in the storage medium, and the executable instruction enables a processor to execute the steps of the anti-fog method for the vehicle window.

According to the vehicle window antifogging method provided by the embodiment of the application, the historical driving record of the vehicle is obtained, and the starting time of the temperature detection device of the vehicle is determined based on the historical driving record; if the current time reaches the opening time, acquiring the current environment temperature, the external temperature of the car window and the internal temperature of the car window; determining whether the conditions for starting the anti-fog function are met or not according to the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window, and determining an anti-fog mode according to the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window when the conditions for starting the anti-fog function are met; and finally, the vehicle is controlled to start the anti-fog function in an anti-fog mode, so that the automatic control of the anti-fog function can be realized, the delay caused by starting to demist after fogging is avoided, the effect of preventing fogging is realized, the anti-fog function is free from manual operation of a driver, and safe driving is ensured.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.

Fig. 1 is a schematic flow chart of an implementation of a vehicle window antifogging method provided in an embodiment of the present application;

fig. 2 is a schematic flow chart of another implementation of the anti-fog method for the vehicle window provided by the embodiment of the application;

FIG. 3 is a schematic flow chart of an implementation of the step of determining the turn-on time of the temperature detection device of the vehicle in the method provided by the embodiment of the present application;

fig. 4 is a schematic flow chart illustrating one implementation of the step of obtaining the ambient temperature, the outside temperature of the window, and the inside temperature of the window in the method provided in the embodiment of the present application;

fig. 5 is a schematic flow chart of an implementation of the step of determining the anti-fog mode in the method provided by the embodiment of the present application;

fig. 6 is a schematic flow chart of another implementation of the step of determining the anti-fog mode in the method provided by the embodiment of the present application;

fig. 7 is a schematic flow chart illustrating a method for actively defrosting in advance based on a GPS positioning commonly used by an owner according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a vehicle window antifogging device provided in an embodiment of the present application;

fig. 9 is a schematic structural diagram of a vehicle device according to an embodiment of the present application.

Detailed Description

In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the attached drawings, the described embodiments should not be considered as limiting the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

In the following description, references to the terms "first \ second \ third" are only to distinguish similar objects and do not denote a particular order, but rather the terms "first \ second \ third" are used to interchange specific orders or sequences, where appropriate, so as to enable the embodiments of the application described herein to be practiced in other than the order shown or described herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the application.

The method provided by the embodiment of the present application is described below with reference to an apparatus for implementing the embodiment of the present application. Fig. 1 is a schematic flow chart of an implementation of a vehicle window antifogging method provided in an embodiment of the present application, and as shown in the figure, the vehicle window antifogging method includes the following steps:

and step S101, obtaining the historical driving record of the vehicle.

In the higher city of humidity, overcast and rainy day always arouses the problem that the window hazed easily, especially when driving the vehicle out underground garage, because underground garage and outdoor temperature difference lead to the door window to haze suddenly, need driver manual operation to open the defogging function among the correlation technique, have certain requirement to driver knowledge deposit and driving ability, and before the fog was eliminated, fog covering door window sheltered from the sight, influences safe driving.

In order to solve the technical problem, embodiments of the present application provide a method for preventing fogging of a vehicle window, which may be implemented by a vehicle window anti-fogging device. For most vehicle owners, the daily work-on and work-off time is basically fixed, frequent places (such as companies and homes) are regular, and the time of leaving the parking place of the vehicle owner can be predicted based on the regular work-on and work-off time in combination with historical driving records. The window antifogging device firstly obtains historical driving records of a vehicle, wherein the historical driving records at least comprise historical parking positions of the vehicle and departure time of the vehicle from the historical parking positions.

Step S102, determining the starting time of the temperature detection device of the vehicle based on the historical driving record.

After the historical parking position of the vehicle and the departure time of the vehicle from each historical parking position are obtained, a plurality of departure times of the vehicle at the current parking position are determined by combining the current parking position of the vehicle, the departure time of the vehicle owner at this time is deduced according to the plurality of departure times, and the starting time of the temperature detection at this time is determined by combining the required time length of the anti-fog. In this embodiment, the temperature detecting device may be a temperature sensor.

And step S103, when the current time reaches the opening time, acquiring the current environment temperature, the window outside temperature and the window inside temperature.

In actual life, when the temperature difference between the underground garage and the outdoor environment is large, the windows of the vehicle are easy to fog when the vehicle is driven out of the underground garage (generally in summer and winter); when the temperature difference between the underground garage and the outdoor environment is small, the vehicle windows are not easy to fog when the vehicle is driven out of the underground garage (such as in spring and autumn). When the outside temperature of the vehicle window is higher than the inside temperature of the window, water vapor condenses on the outside of the windshield to form mist, and when the outside temperature of the vehicle window is lower than the inside temperature of the window, water vapor condenses on the inside of the windshield to form mist. In combination with the formation factor of the fog, in the method provided by the embodiment of the application, the anti-fog principle is to reduce the temperature difference between the temperature outside the vehicle window and the temperature inside the vehicle window.

In one implementation mode, a timer is used for timing, if the current time is monitored to reach the opening time of a temperature detection device of the vehicle, the current environment temperature of the position where the vehicle is located and the temperatures inside and outside a vehicle window at the moment are obtained, and whether fog is possibly generated on the vehicle window after the vehicle leaves the underground garage or not is judged based on the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window.

And step S104, determining an anti-fog mode when the environment temperature, the temperature outside the car window and the temperature inside the car window meet the condition of starting the anti-fog function.

And determining whether the vehicle is likely to fog on the window after the vehicle is driven away from the underground garage according to the ambient temperature, the temperature outside the window and the temperature inside the window, and determining an anti-fog mode according to the ambient temperature when the ambient temperature, the temperature outside the window and the temperature inside the window meet the condition of starting an anti-fog function. In the embodiment of the application, the corresponding anti-fog mode can be determined by combining different outdoor environment temperatures so as to achieve effective anti-fog. For example, when the outdoor environment temperature is high, the temperature in the vehicle needs to be reduced to improve the driving comfort of the vehicle owner, and at the moment, the anti-fog function can be started in a refrigeration anti-fog mode; when the outdoor environment temperature is low, the temperature in the vehicle needs to be raised, and the antifogging function can be started in a heating antifogging mode.

And step S105, controlling the vehicle to start the anti-fog function in the anti-fog mode.

After the anti-fog mode is determined, the air conditioning device of the vehicle is controlled to work in the corresponding anti-fog mode, so that when the vehicle drives away from the underground garage, the vehicle window cannot be fogged, and the effect of preventing the vehicle window from being fogged is achieved. In the embodiment of the application, the anti-fog mode can comprise a refrigeration anti-fog mode and a heating anti-fog mode. When the antifogging mode is a refrigerating antifogging mode, controlling an air conditioning device of the vehicle to start working in a cold air and dehumidification mode; and when the anti-fog mode is the heating anti-fog mode, controlling the air conditioning device of the vehicle to start working in a warm air mode.

According to the vehicle window antifogging method provided by the embodiment of the application, the historical driving record of the vehicle is obtained, and the starting time of the temperature detection device of the vehicle is determined based on the historical driving record; when the current time reaches the opening time, acquiring the current environment temperature, the external temperature of the car window and the internal temperature of the car window; when the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window meet the condition of starting the anti-fog function, determining an anti-fog mode; and controlling the vehicle to start the anti-fog function in the anti-fog mode. Whether the anti-fog function needs to be started or not is determined through the historical driving record and the current temperature information of the vehicle, the anti-fog mode is determined according to the current temperature information when the anti-fog function needs to be started, automatic control of the anti-fog function can be achieved, the phenomenon that demisting is started after fogging is avoided to cause time delay, the effect of preventing fogging is achieved, manual operation of a driver is not needed for the anti-fog function, and safe driving is guaranteed.

In practical application, under the premise of the same ambient temperature, the temperature inside and outside the window, if the air humidity is large, the window of the vehicle may have a fogging phenomenon, if the air humidity is small, even if the temperature difference exists inside and outside the window, the water vapor cannot be condensed on the window, and therefore, whether the anti-fogging function needs to be started is also related to the real-time ambient humidity. Based on the embodiment shown in fig. 1, an embodiment of the present application further provides an anti-fog method for a vehicle window, fig. 2 is a schematic view of another implementation flow of the anti-fog method for a vehicle window provided in the embodiment of the present application, and as shown in fig. 2, the method includes the following steps:

in step S201, a historical driving record of the vehicle is acquired.

The method for preventing the vehicle window from fogging provided by the embodiment of the application can be realized by a vehicle window antifogging device. The window antifogging device firstly obtains historical driving records of a vehicle, wherein the historical driving records at least comprise historical parking positions of the vehicle and departure time of the vehicle from the historical parking positions.

In step S202, the time when the temperature detection device of the vehicle is turned on is determined based on the history of the traveling history.

And step S203, when the current time reaches the opening time, acquiring the outside temperature and the inside temperature of the car window.

In one implementation, a timer is used for timing, and if the current time is monitored to reach the opening time of a temperature detection device of a vehicle, the temperature inside and outside a window of the vehicle at the moment is acquired.

Step S204, acquiring the current ambient temperature and ambient humidity.

The ambient temperature is an outdoor temperature at which the current parking position of the vehicle is located, and the ambient humidity is an outdoor humidity at which the current parking position of the vehicle is located. When the current time reaches the starting time, sending a request message for acquiring the ambient temperature and the ambient humidity to the first equipment, wherein the request message carries the current parking position of the vehicle; and after receiving the request message, the first device detects the outdoor temperature and humidity of the current parking position of the vehicle and sends the detected ambient temperature and ambient humidity back to the window anti-fog device, so that the current ambient temperature and ambient humidity are obtained.

In practical application, when it is determined that the current time reaches the opening time, step S203 "obtain the outside temperature and the inside temperature of the window" may be executed first, step S204 "obtain the current ambient temperature and the current ambient humidity" may be executed first, and the current ambient temperature and the current ambient humidity may be obtained from the same device or different devices, which is not limited in the embodiment of the present application.

And S205, when the environment humidity, the environment temperature, the temperature outside the automobile window and the temperature inside the automobile window meet the condition of starting the anti-fog function, determining the anti-fog mode.

Whether the automobile has possibility of fogging on the automobile window after the automobile is driven away from the underground garage is determined according to the environment humidity, the environment temperature, the temperature outside the automobile window and the temperature inside the automobile window, and when the environment humidity, the environment temperature, the temperature outside the automobile window and the temperature inside the automobile window meet the condition of starting the anti-fogging function, the anti-fogging mode is determined according to the environment temperature. In the embodiment of the application, the anti-fog mode can comprise a refrigeration anti-fog mode and a heating anti-fog mode.

And step S206, controlling the vehicle to start the anti-fog function in the anti-fog mode.

After the anti-fog mode is determined, controlling the air conditioning device of the vehicle to start working in the corresponding anti-fog mode, specifically, controlling the air conditioning device of the vehicle to start working in a cold air and dehumidification mode when the anti-fog mode is a refrigeration anti-fog mode; and when the anti-fog mode is the heating anti-fog mode, controlling the air conditioning device of the vehicle to start working in a warm air mode. So when guaranteeing that the vehicle to drive away from secret garage, can not hazy on the door window, reach the effect that the prevention door window hazed.

According to the vehicle window antifogging method provided by the embodiment of the application, the historical driving record of the vehicle is obtained, and the starting time of the temperature detection device of the vehicle is determined based on the historical driving record; when the current time reaches the opening time, acquiring the current environment temperature, the environment humidity, the outside temperature of the vehicle window and the inside temperature of the vehicle window; when the environment humidity, the environment temperature, the temperature outside the car window and the temperature inside the car window meet the condition of starting the anti-fog function, determining an anti-fog mode; and controlling the vehicle to start the anti-fog function in the anti-fog mode. Whether possible fogging is determined through current humidity information and temperature information, and an anti-fogging mode is determined according to the current temperature information when possible fogging is determined, so that automatic control of an anti-fogging function can be realized, time delay caused by starting to demist after fogging is avoided, an effect of preventing fogging is realized, manual operation of a driver is not needed for the anti-fogging function, and safe driving is ensured.

In some embodiments, step S102 in the embodiment shown in fig. 1 or step S202 "determining the turn-on time of the temperature detection device of the vehicle based on the historical driving record" in the embodiment shown in fig. 2 may be implemented by the following steps shown in fig. 3:

in step S301, a current parking position of the vehicle is acquired.

A vehicle is generally equipped with a Global Positioning System (GPS), and the current parking position of the vehicle can be acquired by using the GPS of the vehicle.

And step S302, determining the expected starting time of the vehicle according to the historical driving record and the current parking position.

Determining the predicted transmission time of the vehicle may be implemented as: screening out historical driving sub records from the historical driving records according to the current parking position, wherein the historical driving sub records comprise the historical parking position which is the same as the current parking position; and determining the predicted starting time of the vehicle according to the historical starting time included in the historical driving sub record.

After the historical parking positions of the vehicles and the departure time of the vehicles from the historical parking positions are obtained, the departure time of the vehicles at the current parking positions is determined by combining the current parking positions of the vehicles, and the departure time is the historical driving sub-record. Then, the present departure time of the vehicle owner is estimated based on the plurality of departure times, for example, the present departure time of the vehicle owner is averaged, and the average value is used as the present departure time of the vehicle owner, thereby obtaining the expected starting time of the vehicle.

Step S303, determining the starting time of the temperature detection device of the vehicle based on the predicted starting time and the preset anti-fog time.

In practical application, the anti-fog duration required for preventing the vehicle window from fogging can be obtained through multiple times of experimental detection, namely the preset anti-fog duration is obtained, and the time from the anti-fog duration at the predicted starting time is determined as the starting time of the temperature detection device. For example, if the expected starting time is 18:00 and the preset anti-fog time period is 10 minutes, the starting time of the temperature detection device is determined to be 17: 50. In this embodiment, the temperature detecting device may be a temperature sensor.

The method provided by the embodiment of the application can be used for presuming the starting time of the current temperature detection device based on the historical driving record of the vehicle, so that a basis is provided for realizing the automatic starting of the anti-fog function.

In some embodiments, the step S103 "of determining that the current time reaches the opening time, and acquiring the current ambient temperature, the window outside temperature, and the window inside temperature" in the embodiment shown in fig. 1 may be implemented by the following steps shown in fig. 4:

step S401, when it is determined that the current time reaches the start time, sending a request message for acquiring the ambient temperature to the first device.

Step S402, receiving a response message sent by the first device.

The ambient temperature is the temperature outside the room where the current parking position is located. In actual implementation, the ambient temperature may be obtained in conjunction with a weather forecast. The vehicle window anti-fog device sends a request message for acquiring the ambient temperature to the first equipment, wherein the request message carries the current parking position. After receiving the request message for obtaining the ambient temperature, the first device monitors the outdoor temperature of the current parking position to obtain the ambient temperature, carries the ambient temperature in the response message and sends the response message back to the vehicle anti-fog device, and thus obtains the outdoor ambient temperature of the current parking position.

In an implementation manner, the environmental humidity and the environmental temperature may be obtained simultaneously, that is, when the "obtaining the environmental humidity" in step S204 in the embodiment shown in fig. 2 is implemented, at this time, the request message carries the current parking position, and the response message carries the outdoor environmental temperature and the outdoor environmental humidity of the current parking position monitored by the first device.

In step S403, the outside temperature of the window is acquired by using the first temperature detection device mounted outside the window.

And S404, acquiring the temperature in the vehicle window by using a second temperature detection device installed in the vehicle window.

In the embodiment of the application, the temperature detection device can be a temperature sensor, a first temperature sensor is arranged outside the vehicle and used for acquiring the temperature outside the vehicle window, and a second temperature sensor is arranged inside the vehicle and used for acquiring the temperature inside the vehicle window.

In the embodiment of the application, acquire real-time outdoor ambient temperature through first equipment, utilize temperature sensor to acquire the inside and outside temperature of door window, compare with only obtaining the temperature according to the sensor among the prior art, the ambient temperature that first equipment acquireed more is close to the actual temperature environment after the vehicle leaves underground garage, can improve the degree of accuracy of the actual temperature who acquires to improve the degree of accuracy of confirming antifog mode.

In some embodiments, the step S104 "determining the anti-fog mode when the ambient temperature, the outside temperature of the window, and the inside temperature of the window satisfy the condition for activating the anti-fog function" in the embodiment shown in fig. 1 may be implemented by the following steps shown in fig. 5:

step S501, determining whether the ambient temperature is greater than a first preset temperature.

When the ambient temperature is higher than the first preset temperature, it indicates that the current outdoor environment is high, and may be in summer, and then the method goes to step S502; when the ambient temperature is less than or equal to the first preset temperature, the process proceeds to step S505.

Step S502, a first temperature difference between the ambient temperature and the outside window temperature is determined.

The first temperature difference Δ T1 is equal to the ambient temperature T — the outside window temperature T1.

Step S503, determining whether the first temperature difference is greater than a first temperature difference threshold.

When the first temperature difference Δ t1 is greater than the first temperature difference threshold, it indicates that the anti-fog function needs to be turned on, and then the step S504 is performed; when the first temperature difference Δ t1 is smaller than or equal to the first temperature difference threshold, the anti-fog function does not need to be turned on, and the process proceeds to step S509.

And step S504, determining the anti-fog mode as a refrigeration anti-fog mode.

Because the ambient temperature is greater than the first preset temperature, the current outdoor environment is higher, the anti-fog mode is determined as the refrigerating anti-fog mode, and the air conditioning device of the vehicle is controlled to work in a cold air and dehumidification mode, so that the temperature in the vehicle is not too high when a vehicle owner gets on the vehicle.

Step S505, determining whether the ambient temperature is less than a second preset temperature.

When the ambient temperature is lower than the second preset temperature, it indicates that the current outdoor environment is low, and may be in winter, and then step S506 is performed; when the ambient temperature is greater than or equal to the second preset temperature, that is, the ambient temperature is between the second preset temperature and the first preset temperature, it indicates that the current outdoor environment is moderate, and it may be in spring and autumn, and the anti-fog function does not need to be turned on at this time, and the process proceeds to step S509.

In step S506, a second temperature difference between the temperature in the window and the ambient temperature is determined.

The second temperature difference Δ T2 is the window interior temperature T2 — the ambient temperature T.

Step S507, determining whether the second temperature difference is greater than a second temperature difference threshold.

When the second temperature difference Δ t2 is greater than the second temperature difference threshold, it indicates that the anti-fog function needs to be turned on, and then the process proceeds to step S508; when the second temperature difference Δ t2 is less than or equal to the second temperature difference threshold, the anti-fog function does not need to be turned on, and the process proceeds to step S509.

In step S508, the anti-fog mode is determined as the heating anti-fog mode.

Because the ambient temperature is lower than the second preset temperature, the current outdoor environment is lower, the anti-fog mode is determined to be the heating anti-fog mode at the moment, and the air conditioning device of the vehicle is controlled to work in a warm air mode, so that the temperature in the vehicle cannot be too low when a vehicle owner gets on the vehicle.

Step S509 ends.

According to the method provided by the embodiment of the application, the corresponding anti-fog mode is determined according to the actual environment temperature, the temperature outside the car window and the temperature inside the car window, and the automatic selection of multiple anti-fog modes can be realized.

In some embodiments, the step S205 "determining the anti-fog mode when the ambient humidity, the ambient temperature, the outside temperature and the inside temperature satisfy the condition for starting the anti-fog function" in the embodiment shown in fig. 2 may be implemented by the following steps shown in fig. 6:

step S601, determining whether the environmental humidity is greater than a preset humidity threshold.

When the environmental humidity is greater than the preset humidity threshold, indicating that the current environmental humidity is greater, then entering step S602 to further determine whether a fogging condition is reached according to the temperature; when the environmental humidity is less than or equal to the preset humidity threshold, it indicates that the current environmental humidity is small and the vehicle window does not fog, and then the process proceeds to step S610.

Step S602, determining whether the ambient temperature is greater than a first preset temperature.

When the ambient temperature is higher than the first preset temperature, it indicates that the current outdoor environment is high, and possibly in summer, the step S603 is performed at this time; when the ambient temperature is less than or equal to the first preset temperature, the process proceeds to step S606.

In step S603, a first temperature difference between the ambient temperature and the outside window temperature is determined.

The first temperature difference Δ T1 is ambient temperature T — outside window temperature T1.

In step S604, it is determined whether the first temperature difference is greater than a first temperature difference threshold.

When the first temperature difference Δ t1 is greater than the first temperature difference threshold, it indicates that the anti-fog function needs to be started, and then the step S605 is performed; when the first temperature difference Δ t1 is less than or equal to the first temperature difference threshold, the anti-fog function is not required to be turned on, and the process proceeds to step S610.

In step S605, the antifogging mode is determined as the cooling antifogging mode.

Because the ambient temperature is higher than the first preset temperature, the current outdoor environment is higher, the anti-fog mode is determined to be the refrigeration anti-fog mode, and the air conditioning device of the vehicle is controlled to work in a cold air and dehumidification mode, so that the temperature in the vehicle cannot be too high when a vehicle owner gets on the vehicle.

Step S606, determining whether the ambient temperature is less than a second preset temperature.

When the ambient temperature is lower than the second preset temperature, it indicates that the current outdoor environment is low, possibly in winter, and then the method proceeds to step S607; when the ambient temperature is greater than or equal to the second preset temperature, that is, the ambient temperature is between the second preset temperature and the first preset temperature, it indicates that the current outdoor environment is moderate, and it may be in spring and autumn, and at this time, the anti-fog function does not need to be turned on, and the process proceeds to step S610.

In step S607, a second temperature difference between the temperature inside the window and the ambient temperature is determined.

In step S608, it is determined whether the second temperature difference is greater than a second temperature difference threshold.

When the second temperature difference Δ t2 is greater than the second temperature difference threshold, it indicates that the anti-fog function needs to be started, and then the step S609 is performed; when the second temperature difference Δ t2 is less than or equal to the second temperature difference threshold, the anti-fog function is not required to be turned on, and the process proceeds to step S610.

In step S609, the antifogging mode is determined as the heating antifogging mode.

And step S610, ending.

According to the method provided by the embodiment of the application, the corresponding anti-fog mode is determined according to the actual environment humidity, the environment temperature, the temperature outside the car window and the temperature inside the car window, and the automatic selection of multiple anti-fog modes can be realized.

In the following, an exemplary application of the embodiments of the present application in a practical application scenario will be described.

The dew point temperature refers to the temperature at which the air is cooled to saturation when the air pressure is maintained constant with the water vapor content in the air, and is called the dew point temperature, which is called the dew point for short, and is expressed in degrees Celsius (C.) or degrees Fahrenheit (F.). In fact, the temperature at which the water vapor and water reach equilibrium, and therefore the temperature value can be used to characterize the humidity.

Under the condition of certain air humidity, if the temperature of the car window is lower than the dew point temperature, condensation can be easily formed on the surface of the car window, and if the temperature of the dew point is higher than 0 ℃, a fogging phenomenon can occur; if the dew point temperature is below 0 deg.C, the phenomenon of frosting occurs. When the temperature difference exists between the two sides of the car window, the saturated vapor pressure of the surface moisture on the side with low temperature is lower than the vapor pressure of the surrounding environment, and the vapor can be gathered on the surface of the glass and dialyzed out in the form of tiny water drops to form mist.

Generally, when a front windshield is fogged, a driver is required to judge whether the outer side of the windshield is fogged or the inner side of the windshield is detected to be fogged, and corresponding defogging measures are taken according to the fogged state. Like this, not only require to driver's experience higher, have certain maloperation risk, moreover, just begin the defogging after the fog, wait that fog elimination has certain hysteresis quality, the defogging operation also disturbs driver's attention very easily, has certain potential safety hazard.

In order to solve the technical problem, according to the embodiment of the application, the most frequently used places of the user are memorized, and on the premise that the possibility of fogging exists on the inner side and the outer side of the vehicle window, the user is actively demisted, so that fogging is avoided. Fig. 7 is a schematic flow chart of a method for actively defrosting in advance based on a GPS positioning commonly used by an owner according to an embodiment of the present application, and as shown in fig. 7, the method includes the following steps:

step S701, according to the user account, the vehicle automatically memorizes the parking place most frequently used by the user.

According to the starting point and the end point set by the user in navigation, the vehicle automatically memorizes the position information most frequently used by the user and marks a label of a common parking point for a specific place. For example, the tag types may include office building basements, residential basements, in-cell and peripheral parking spaces, and the like.

Step S702, recording, analyzing and memorizing the departure time of the user for going to the journey by using the route frequently used.

And memorizing the time of starting the vehicle at the commonly used parking point by the user according to the commonly used parking point memorized by the vehicle.

And step S703, comparing in advance the difference between the surface temperature of the inner side and the outer side of the vehicle glass and the indoor and outdoor environmental temperature of the day according to the memorized departure time commonly used by the user.

The indoor and outdoor ambient temperature is judged in the same day, the ambient temperature information is acquired by combining local weather forecast, the ambient temperature information is acquired by combining the vehicle sensor, the temperature information given by the weather forecast information is taken as the main temperature information, and the accuracy of the vehicle for analyzing the ambient temperature is improved.

The temperatures of the inner and outer surfaces of the vehicle glass are acquired by temperature sensors. The vehicle compares the numerical difference between the outside of the vehicle glass and the ambient temperature, and then compares the numerical difference between the inside of the vehicle glass and the ambient temperature.

In step S704, if the ambient humidity reaches a certain height and the vehicle is likely to fog, the anti-fog function is turned on in combination with the ambient temperature.

According to the temperature difference between the glass on the inner side of the vehicle and the environment and the temperature difference between the glass on the outer side of the vehicle and the environment calculated by the vehicle, humidity information given by local weather forecast is taken as a standard, the humidity condition with a certain numerical value is met, and when the temperature difference reaches a certain numerical value, the vehicle judges that fog possibly occurs on the inner side and the outer side of the glass.

If the automobile is in summer, the automobile actively opens the air conditioner cold air blowing window for the user and opens the air conditioner for dehumidification; if the automobile is in winter, the automobile actively opens the warm air blowing window for the user, and the difference between the temperature of the inner side and the outer side surface of the window glass and the ambient temperature is changed. The inner side and the outer side of the car window can not be fogged when a user drives to get out of the garage.

The method provided by the embodiment of the application can determine the time and the place of the window fogging problem which possibly occurs according to the use habit of a user, replaces manual work to carry out prejudgment and actively solves the fragmentation problem of window fogging through the integrated processing capacity of the vehicle to environment information such as invisible temperature difference, humidity change and the like, can greatly reduce the possibility that the user needs to carry out emergency demisting on the premise of no warning, reduces the interference of trivial matters to the user, and ensures safe driving.

Based on the foregoing embodiments, embodiments of the present application provide an anti-fog device for a vehicle window, where modules included in the device and units included in the modules may be implemented by a processor in a computer device; of course, the implementation can also be realized through a specific logic circuit; in the implementation process, the processor may be a Central Processing Unit (CPU), a Microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPG a), or the like.

The embodiment of the present application provides a door window anti-fogging device again, and fig. 8 is a schematic diagram of a composition structure of the door window anti-fogging device that the embodiment of the present application provides, as shown in fig. 8, door window anti-fogging device 800 includes:

a first obtaining module 801, configured to obtain a historical driving record of a vehicle;

a first determining module 802, configured to determine, based on the historical driving record, a starting time of a temperature detecting device of the vehicle;

a second obtaining module 803, configured to obtain the current ambient temperature, the current outside temperature of the vehicle window, and the current inside temperature of the vehicle window when the current time reaches the opening time;

the second determining module 804 is configured to determine an anti-fog mode when the environment temperature, the temperature outside the window and the temperature inside the window meet a condition for starting an anti-fog function;

the control module 805 is configured to control the vehicle to start the anti-fog function in the anti-fog mode.

In some embodiments, the window anti-fog device 800 further includes:

the third acquisition module is used for acquiring the ambient humidity, wherein the ambient humidity is the outdoor humidity of the current parking position of the vehicle;

correspondingly, the second determining module 804 is further configured to: and when the environment humidity, the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window meet the condition of starting the anti-fog function, determining the anti-fog mode.

In some embodiments, the first determining module 802 is further configured to:

acquiring a current parking position of the vehicle; determining the expected starting time of the vehicle according to the historical driving record and the current parking position; and determining the starting time of the temperature detection device of the vehicle based on the predicted starting time and the preset anti-fog time.

In some embodiments, the first determining module 802 is further configured to:

according to the current parking position, screening out historical driving sub records from the historical driving records, wherein the historical driving sub records comprise the historical parking position which is the same as the current parking position; and determining the predicted starting time of the vehicle according to the historical starting time included in the historical driving sub record.

In some embodiments, the second obtaining module 803 is further configured to:

when the current time reaches the starting time, sending a request message for acquiring the ambient temperature to first equipment, wherein the request message carries the current parking position of the vehicle; receiving a response message sent by the first device, wherein the response message carries an ambient temperature, and the ambient temperature is an outdoor temperature of the current parking position; acquiring the temperature outside the vehicle window by utilizing a first temperature detection device arranged outside the vehicle window; and acquiring the temperature in the car window by utilizing a second temperature detection device arranged in the car window.

In some embodiments, the second determining module 804 is further configured to:

when the environment temperature is higher than a first preset temperature, determining a first temperature difference between the environment temperature and the temperature outside the vehicle window; when the first temperature difference is larger than a first temperature difference threshold value, determining the anti-fog mode as a refrigeration anti-fog mode; and/or the presence of a gas in the gas,

when the environment humidity is greater than a preset humidity threshold value and the environment temperature is greater than a first preset temperature, determining a first temperature difference between the environment temperature and the temperature outside the vehicle window; when the first temperature difference is larger than a first temperature difference threshold value, determining the anti-fog mode as a refrigeration anti-fog mode; and/or the presence of a gas in the atmosphere,

In some embodiments, the control module 805 is further configured to:

It is to be noted here that: the above description of the embodiment of the anti-fog device for the vehicle window is similar to the above description of the method, and has the same beneficial effects as the embodiment of the method. For technical details not disclosed in the embodiments of the present window antifogging device, those skilled in the art should understand with reference to the description of the embodiments of the method of the present application.

It should be noted that, in the embodiment of the present application, if the method is implemented in the form of a software functional module and sold or used as a standalone product, it may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or portions thereof contributing to the prior art may be embodied in the form of a software product stored in a storage medium, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.

Accordingly, the present application provides a computer-readable storage medium, in which at least one executable instruction is stored, and the executable instruction causes a processor to execute the steps in the vehicle window antifogging method provided in the foregoing embodiments.

In the anti-fog apparatus for vehicle window according to the embodiment of the present application, fig. 9 is a schematic diagram of a composition structure of the vehicle apparatus according to the embodiment of the present application, and according to the exemplary structure of the vehicle apparatus 900 shown in fig. 9, other exemplary structures of the vehicle apparatus 900 can be foreseen, so that the structure described herein should not be considered as a limitation, for example, some components described below may be omitted, or components not described below may be added to adapt to the special requirements of some applications.

The vehicle apparatus 900 shown in fig. 9 includes: a processor 901, at least one communication bus 902, a user interface 903, at least one external communication interface 904 and memory 905. Wherein the communication bus 902 is configured to enable connective communication between these components. The user interface 903 may include a display screen, and the external communication interface 904 may include a standard wired interface and a wireless interface, among others. Wherein the processor 901 is configured to execute the program of the window anti-fog method stored in the memory to implement the steps in the window anti-fog method provided in the foregoing embodiments.

The above description of the vehicle device and storage medium embodiments, similar to the description of the method embodiments above, has similar beneficial effects as the method embodiments. For technical details not disclosed in the embodiments of the vehicle apparatus and storage medium of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.

Alternatively, the integrated unit described above may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present application, which are essentially or partly contributed to by the prior art, may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a device to perform all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall cover the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for preventing fogging of a vehicle window, the method comprising:

controlling the vehicle to start the anti-fog function in the anti-fog mode.

2. The method of claim 1, further comprising:

and when the environment humidity, the environment temperature, the temperature outside the vehicle window and the temperature inside the vehicle window meet the condition of starting the anti-fog function, determining the anti-fog mode.

3. The method of claim 1, wherein determining a turn-on time of a temperature detection device of the vehicle based on the historical driving history comprises:

acquiring a current parking position of the vehicle;

4. The method of claim 3, wherein determining the predicted launch time of the vehicle based on the historical driving history and the current parking location comprises:

and determining the expected starting time of the vehicle according to the historical starting time included in the historical driving sub record.

5. The method of claim 1, wherein the determining that the current time reaches the opening time, and obtaining the current ambient temperature, the outside window temperature, and the inside window temperature comprises:

and acquiring the temperature in the vehicle window by utilizing a second temperature detection device arranged in the vehicle window.

6. The method according to claim 1, wherein when the ambient temperature, the outside temperature and the inside temperature satisfy a condition for starting an anti-fog function, determining an anti-fog mode comprises:

7. The method according to claim 2, wherein the determining the anti-fog mode when the ambient humidity, the ambient temperature, the outside temperature and the inside temperature satisfy a condition for activating an anti-fog function comprises:

when the environment humidity is larger than a preset humidity threshold value and the environment temperature is smaller than a second preset temperature, determining a second temperature difference between the temperature in the vehicle window and the environment temperature; and when the second temperature difference is larger than a second temperature difference threshold value, determining the anti-fog mode as a heating anti-fog mode.

8. The method according to claim 6 or 7, wherein the controlling the vehicle to turn on the anti-fog function in the anti-fog mode comprises:

9. An anti-fogging device for a vehicle window, said device comprising:

10. A vehicular apparatus characterized by comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;

the memory is used for storing at least one executable instruction, and the executable instruction causes the processor to execute the steps of the vehicle window antifogging method according to any one of claims 1 to 8.