CN111114252B - Sunshade method, device and system for personnel in traffic vehicle and automobile - Google Patents
Sunshade method, device and system for personnel in traffic vehicle and automobile Download PDFInfo
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- CN111114252B CN111114252B CN201911339056.9A CN201911339056A CN111114252B CN 111114252 B CN111114252 B CN 111114252B CN 201911339056 A CN201911339056 A CN 201911339056A CN 111114252 B CN111114252 B CN 111114252B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
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Abstract
The invention discloses a sun-shading method, a sun-shading device, a sun-shading system and an automobile for personnel in a traffic carrier, wherein illumination information and eye position information of the personnel in the traffic carrier are obtained; calculating the slope length of a shielding area on the vehicle glass and the target transmittance according to the illumination information and the eye position information of the personnel in the traffic vehicle; and forming a shielding area according to the slope length of the shielding area and the target transmittance, so that the eyes of the corresponding personnel in the traffic carrier are positioned in the shadow formed by the shielding area. The invention can adjust the size of the shielding area and the transmittance of the shielding area according to the illumination information, can ensure the visual field of a driver to the maximum extent while shading, does not need manual operation of the driver in the shading process, and greatly improves the driving safety.
Description
Technical Field
The invention relates to the technical field of automobile sunshade, in particular to a sunshade method, a sunshade device and a sunshade system for people in a traffic carrier and an automobile.
Background
In the driving process of an automobile, the phenomenon that sunlight passes through a front windshield and enters a cab often exists, the sunlight can interfere the sight of a driver, and traffic accidents are easily caused under strong light. To avoid this phenomenon, a sun visor is generally used in the prior art to block sunlight to avoid or reduce the irritation of the sunlight to the eyes of the driver. However, the conventional sun visor needs to be rotated by a driver through holding the sun visor by hand, which may cause distraction of the driver and easily cause traffic accidents during the rotation of the sun visor.
Disclosure of Invention
The invention aims to provide a sun-shading method, a device, a system and an automobile for people in a traffic carrier, aiming at solving the defects in the prior art, the sun-shading method can adjust the size of a shading area and the light transmittance of the shading area according to illumination information, can shade the sun and ensure the visual field of a driver to the maximum extent, does not need manual operation of the driver in the sun-shading process, and greatly improves the driving safety.
The invention provides the following scheme:
a sun-shading method for people in a traffic carrier comprises the following steps,
acquiring illumination information and eye position information of personnel in the traffic carrier;
calculating the slope length of a shielding area on the corresponding carrier glass and the target transmittance according to the illumination information and the eye position information;
and forming a shielding area according to the slope length of the shielding area and the target transmittance, so that the eyes of the corresponding personnel in the traffic carrier are positioned in the shadow formed by the shielding area.
The sunshade method for the people in the traffic vehicle as described above, wherein optionally, the illumination information includes illumination intensity and illumination angle; the eye position information is a preset value or a preset measured value;
calculating the length of the slope of the occlusion region specifically comprises: calculating the slope length of the shielding area according to the illumination angle;
calculating the target transmittance specifically includes: and calculating the target transmittance according to the illumination intensity.
The sunshade method for the people in the traffic vehicle as described above, wherein optionally, two photovoltaic panels are respectively arranged at the positions corresponding to the vehicle glass according to different predetermined inclination angles;
the acquiring of the illumination information specifically includes:
respectively acquiring short-circuit current of the two photovoltaic panels under the irradiation of sunlight;
and calculating the illumination intensity and the illumination angle according to the short-circuit current and the inclination angles of the two photovoltaic panels.
The sunshade method for the people in the vehicle as described above, wherein optionally, the method further includes, after the acquired illumination information is changed:
determining the variation of the slope length of the shielding area according to the variation of the illumination angle;
adjusting the length of the shielding area along the slope direction of the corresponding carrier glass according to the variable quantity of the slope length of the shielding area; and/or
Determining the variation of the target transmittance according to the variation of the illumination intensity;
and adjusting the target transmittance of the shielding area according to the variable quantity of the target transmittance.
The sunshade method for the people in the traffic vehicle as described above, wherein optionally, a sunshade unit for electrically controlled sunshade is arranged on the vehicle glass;
forming the shielding area according to the shielding area slope length and the target transmittance specifically comprises:
calculating the number of the sunshade units needing to be opened according to the slope length of the shielding area and the length of each sunshade unit along the slope direction;
calculating the corresponding control voltage of the sunshade unit according to the target transmittance;
and controlling the sun shading units to act according to the number of the sun shading units which are started according to the corresponding control voltage and needs so as to form the shading area.
The invention also provides a sun-shading device, which comprises an illumination sensor, a controller and a sun-shading part;
the sunshade component is arranged on the corresponding carrier glass;
the controller is electrically connected with the illumination sensor and the sun-shading component respectively;
the controller is used for acquiring illumination information through the illumination sensor and controlling the sun-shading component to shade according to the illumination information and the preset eye position information.
The sunshade device as described above, wherein optionally, the illumination information acquired by the illumination sensor includes an illumination angle and an illumination intensity;
the illumination sensor comprises a first photovoltaic panel and a second photovoltaic panel; the second photovoltaic panel is the same size and shape as the first photovoltaic panel;
the first photovoltaic panel and the second photovoltaic panel are arranged at different inclination angles;
the controller is further configured to obtain a first short-circuit current of the first photovoltaic panel and a second short-circuit current of the second photovoltaic panel, and calculate the illumination angle and the illumination intensity according to the first short-circuit current and the second short-circuit current.
The above sunshade device, wherein optionally, the controller controls the sunshade component according to the illumination information specifically includes:
calculating the target transmittance of the sun-shading component according to the illumination intensity;
calculating the slope length of a shielding area of the sun-shading component according to the illumination angle;
and controlling the sunshade component to shade the sun according to the target transmittance in the region corresponding to the slope length of the shading region along the direction from top to bottom.
The sunshade device as described above, wherein optionally, the sunshade member includes a plurality of sunshade units, the sunshade units are strip-shaped transparent liquid crystal displays, and the plurality of sunshade units are sequentially laid on the carrier glass in a top-to-bottom direction;
the plurality of sunshade units are connected with the controller;
the controller is also used for calculating the opening number of the sunshade units according to the slope length of the shielding area, calculating the control voltage of the corresponding sunshade units according to the target transmittance, and controlling the opening of the corresponding number of sunshade units from top to bottom according to the control voltage.
The sunshade device as described above, wherein optionally said sunshade device further comprises a voice recognition component; the voice recognition component is electrically connected with the controller;
the controller is further used for obtaining an effective voice instruction through the voice recognition component and changing the number of the opened shading units and/or the transmittance of the shading area according to the effective voice instruction.
The invention also provides a sun-shading system, which comprises a data processing unit, an illumination information acquisition unit and a transparent liquid crystal display unit;
the data processing unit is respectively connected with the illumination information acquisition unit and the transparent liquid crystal display unit;
the data processing unit is used for acquiring illumination information through the illumination information acquisition unit, determining the slope length of a shielding area and the target transmittance of the shielding area according to the illumination information, and forming the shielding area according to the slope length of the shielding area and the target transmittance through the transparent liquid crystal display unit so that eyes of people in the traffic carrier are positioned in a shadow formed by the shielding area.
The sunshade system as described above, wherein optionally, the transparent liquid crystal display unit includes a plurality of liquid crystal display arrays, liquid crystal driving circuits corresponding to the liquid crystal display arrays one to one, and array control switches corresponding to the liquid crystal driving circuits one to one;
the liquid crystal display array is electrically connected with the corresponding liquid crystal driving circuit, and the liquid crystal driving circuit is electrically connected with the data processing unit through the corresponding array control switch.
The sunshade system as described above, wherein optionally, the sunshade system further includes a light transmission adjusting circuit connected to the array control switch in a one-to-one correspondence manner, and the array control switch is electrically connected to the data processing unit through the corresponding light transmission adjusting circuit.
The sun shading system as described above, optionally, the illumination information collecting unit includes an illumination information collecting circuit, a first photovoltaic panel, and a second photovoltaic panel arranged at an included angle with the first photovoltaic panel;
the illumination information acquisition circuit is used for acquiring a first short-circuit current of the first photovoltaic electric plate and a second short-circuit current of the second photovoltaic electric plate and outputting the first short-circuit current and the second short-circuit current to the data processing unit.
The sunshade system as described above, wherein optionally, the sunshade system further comprises a voice recognition unit, the voice recognition unit is electrically connected with the data processing unit; the data processing unit is also used for acquiring an effective voice instruction through the voice recognition unit and controlling the transparent liquid crystal display unit to adjust the size of the shielding area and the transmittance of the shielding area according to the effective voice instruction.
The sunshade system as described above, wherein optionally, the sunshade system further comprises a power supply unit, the power supply unit is electrically connected with the data processing unit; the power supply unit is used for supplying power to the transparent liquid crystal display unit through the data processing unit;
the power supply unit comprises a voltage reduction circuit and a voltage stabilizing circuit, and the voltage reduction circuit is used for being connected with an external power supply;
the voltage stabilizing circuit is electrically connected with the voltage reducing circuit and the data processing unit.
The invention also provides an automobile, wherein the automobile is shaded by using the shading method;
or a sun shade as described in any of the above;
or a sun shading system as described in any of the above.
Compared with the prior art, the method and the device have the advantages that the illumination information and the eye position information of the personnel in the traffic carrier are obtained, and the slope length of the shielding area on the corresponding carrier glass and the target transmittance are calculated according to the illumination information and the eye position information. And shading the sun according to the slope length of the shading area and the target transmittance. So, obtain according to illumination information and shelter from district slope length, can enough guarantee that personnel's eyes are located the shade that shelters from the district and form in the traffic carrier, can prevent to shelter from the too big problem that leads to disturbing driver's sight in the district again. Through the regulation to the transmittance, can shelter from with suitable transmittance according to the difference of illumination information, can enough guarantee that sunshine does not produce the interference to driver's eyes, can leave sufficient sight scope again.
Drawings
FIG. 1 is a flow chart of the steps of the sunshade method disclosed in example 1;
fig. 2 is a flowchart of the steps of acquiring illumination information disclosed in embodiment 1;
FIG. 3 is a circuit diagram for measuring short-circuit current of photovoltaic panel disclosed in example 1
FIG. 4 is a diagram showing the calculation of the variation of the slope length of the occlusion region in example 2;
FIG. 5 is a schematic view of an installation structure of the sunshade disclosed in embodiment 3;
fig. 6 is a schematic view of an installation structure of a first photovoltaic panel and a second photovoltaic panel in example 3;
FIG. 7 is a block diagram showing the structure of a sunshade system disclosed in embodiment 4;
fig. 8 is a block diagram of the circuit configuration disclosed in embodiment 4.
Description of reference numerals: 1-illumination sensor, 2-sunshade component, 3-carrier glass;
11-a first photovoltaic panel, 12-a second photovoltaic panel;
21-a sunshade unit.
Detailed Description
The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
Example 1
Referring to fig. 1, the present embodiment provides a sun-shading method, including the following steps:
and S1, acquiring the illumination information and the eye position information of the person in the traffic vehicle. In specific implementation, the obtained illumination information includes illumination intensity and illumination angle. Specifically, the illumination angle may be determined by image recognition, or the illumination angle may be obtained by setting a plurality of point position sensors, and the illumination intensity may be obtained by setting an illumination intensity sensor.
In specific implementation, the acquired eye position information of the person in the traffic vehicle may be position information, or may be relative position information or distance information relative to the vehicle glass. In specific implementation, the method for acquiring the eye position information may be that the eye position information is acquired in real time through a sensor, or the eye ellipse position information of the driver is preset and is processed as the eye position information of the person in the traffic vehicle. As a preferred implementation, the eye position information of the person in the transportation vehicle may be a predetermined value or a predetermined measurement value.
And S2, calculating the slope length of the shielding area on the carrier glass and the target transmittance according to the illumination information and the eye position information. During the specific implementation, can realize the regulation to sheltering from the district on the carrier glass through set up transparent liquid crystal display film on corresponding carrier glass, of course, also can directly inlay transparent liquid crystal display on corresponding carrier glass to realize adjusting the purpose of sheltering from district area size and transmittance. In practice, the upper edge of the transparent liquid crystal display film or the transparent liquid crystal display should coincide with the upper edge of the corresponding carrier glass. It should be noted that the carrier glass referred to in the present invention includes a front windshield and/or a window glass; the term "occupant" as used herein in reference to a vehicle includes a driver and/or an occupant. For different drivers and passengers, the shielding region is also positioned on different carrier glasses, for example, to bring a good sun-shading effect to the driver, the shielding region can be arranged on the front windshield and the front window glass at the driver side, and of course, can be only arranged on the front windshield or only arranged on the front window glass at the driver side, and can be specifically arranged as required; in order to bring good sun-shading effect to passengers on a passenger seat, the shading areas can be arranged on a front windshield and a front window glass on the side of the driver; in order to bring a good shading effect to the rear passengers, the shading area can be arranged on the window glass corresponding to the side of the passengers. Therefore, in order to more clearly illustrate the use and implementation effects of the present solution, in the present embodiment and the following implementation, the vehicle glass and the person in the transportation vehicle have a corresponding relationship, for example, when the driver is shaded, the vehicle glass refers to the front windshield and/or the front window on the driver side.
The step of calculating the slope length of the shielding area is specifically to calculate the slope length of the shielding area according to the illumination angle and the eye position information of the personnel in the traffic carrier, so that the eyes of the corresponding personnel in the traffic carrier are positioned in the shadow formed by the shielding area. Specifically, the length of the slope of the occlusion area is calculated according to the illumination angle and the eye position information. Namely, the vertical distance between the eye position of the person in the traffic carrier and the lower edge of the shielding area is smaller than the shading height H;
wherein H ═ L ═ tan θ2；
Wherein L is the horizontal distance from the lower edge of the shielding area to the eyes of the corresponding personnel in the traffic carrier; theta2Is the illumination angle.
L＝La+LS*cosβ；
La is the horizontal distance from the upper edge of the shielding area to the eyes of the corresponding personnel in the traffic vehicle, and can be measured by a sensor; ls is the length of the slope of the shielding area, and beta is the inclination angle of the glass of the automobile.
Thus, the shielding region slope length Ls can be obtained.
And specifically, calculating the target transmittance according to the illumination intensity. Specifically, aiming at the calculation of the target transmittance, the transmittance resolution is m, the minimum voltage change is V, and the corresponding illumination intensity is r and VrefFor the example of the rated reference voltage (i.e. the maximum control voltage of the transparent liquid crystal display film or the transparent liquid crystal display), the formula is as follows:
the control voltage V is then:
wherein, R1 is the illumination intensity;
the corresponding target transmittance ε is:
thus, the target transmittance can be calculated according to the light intensity. The transmittance of the shielding region can be specifically changed by controlling the voltage V.
And S3, shading according to the slope length of the shading area and the target transmittance. Specifically, a shielding area is formed according to the slope length of the shielding area and the target transmittance, so that the eyes of the corresponding personnel in the traffic carrier are positioned in the shadow formed by the shielding area. It should be noted that, in some cases, for example, when the actual eye position information of the person in the transportation vehicle is different from the preset eye position information, the user may adjust the occlusion area autonomously, which is described in detail in embodiments 3 and 4 and is not described herein again.
Therefore, the slope length of the shielding area and the target transmittance can be calculated according to the steps through the illumination information and the eye position information of the personnel in the traffic carrier. The method can not only ensure that the eyes of the personnel in the traffic carrier are positioned in the shadow formed by the corresponding shielding area, but also prevent the problem that the sight of the personnel in the traffic carrier is interfered due to the overlarge shielding area. Through the regulation to the transmittance that shelters from the district, can shelter from with suitable transmittance according to the difference of illumination information, can enough guarantee that sunshine does not produce the interference to personnel's eyes in the traffic carrier, can leave sufficient sight scope again.
As a preferred embodiment, the shielding area is composed of a plurality of sunshade units laid in sequence; the target transmittance comprises a target transmittance of each of the sunshade units; and shading according to the slope length of the shielding area and the target transmittance specifically comprises the step of controlling the shading units corresponding to the slope length of the shielding area in the direction from top to bottom to shade according to the corresponding target transmittance. Namely, the shielding area is positioned in an area formed by flatly paving a plurality of sunshade units on the carrier glass, and the size of the shielding area is adjusted by adjusting the light transmittance of each sunshade unit. Specifically, the shading unit may be a long strip-shaped transparent liquid crystal display member, or may be a transparent liquid crystal display array. In specific implementation, the number of the sunshade units to be opened can be calculated according to the length of the slope of the shielding region and the size of each sunshade unit along the length direction of the slope. The calculation of the target transmittance of the sunshade unit can refer to the calculation formula of the target transmittance. Specifically, two adjacent sunshade units collide with each other or partially overlap with each other, so that sunlight can be prevented from passing through the two adjacent sunshade units to interfere with people in the transportation vehicle.
As a preferred embodiment, the control of the shading units for shading according to the corresponding target transmittance is specifically that shading areas are formed along the shading units for controlling the number of shading units to be shaded from top to bottom according to the corresponding target transmittance. Therefore, a shadow area connected with a vehicle ceiling can be formed downwards along the upper edge of the carrier glass, so that the eyes of people in the traffic carrier can be favorably ensured to be positioned in the shadow area, and the effect of shading is achieved.
In a preferred embodiment, the illumination information is acquired at a predetermined time interval, and the eye position information is acquired by a predetermined value or a predetermined measurement value, such as the eye position information is a fixed value or is measured once after each time the transportation vehicle is started. That is, each time illumination information is acquired, a calculation is performed to turn on or off the corresponding sunshade unit to form a blocking area. The control time for the occlusion unit may be continued until the next time illumination information is acquired or a signal to stop occlusion is received. When the illumination information is acquired at set time intervals, the set time may be 3 seconds, 5 seconds, 10 seconds, 20 seconds, or the like. So, can constantly adjust the scope of sheltering from the district according to the change of sunshine irradiation angle to and change the transmittance of sheltering from the district according to the difference of illumination intensity, can carry out fine control to the sunshade effect. Compared with the method for measuring the eye position information of the personnel in the traffic carrier at a certain time, the method for measuring the eye position information of the personnel in the traffic carrier takes the eye position information of the personnel in the traffic carrier as a preset value, namely a fixed value, so that the requirement on a sensor can be reduced, and the cost is saved. Therefore, the problem that the preset eye position information is different from the actual eye position information can be caused, and the slope length of the shielding area can be initialized and calculated by acquiring an effective instruction (such as an effective voice instruction) of a driver and a passenger so as to form an initial shielding area. In subsequent work, the size of the shielding area is changed on the basis of the shielding area calculated in the previous time, so that the cost can be saved, and the formed shielding area can be matched with the actual eye position information.
Referring to fig. 2, as a preferred embodiment, the acquiring of the illumination information includes acquiring illumination intensity and illumination angle through two photovoltaic panels arranged at different tilt angles; the method specifically comprises the following steps: and S111, respectively obtaining the short-circuit current of the two photovoltaic panels under the irradiation of sunlight through the two photovoltaic panels. Specifically, the short-circuit current of the photovoltaic panel is: and (3) short-circuiting the positive electrode and the negative electrode of the photovoltaic panel to enable the positive voltage and the negative voltage to be 0V to generate current. The method for measuring the photovoltaic panel is as follows: the positive and negative stages of the photovoltaic panel are connected to the drain and source of the MOS transistor, and the controllable electronic load is realized by controlling the gate of the MOS transistor, and of course, the MOS transistor may also be replaced by a triode, and the control modes are the same, as shown in fig. 3.
And the conduction resistance of the MOS tube is controlled by controlling the conduction degree of the MOS tube. When the MOS tube is completely conducted, the conducting resistance of the MOS tube is larger than O, and the short-circuit current can be calculated through high-precision resistance sampling.
And S112, calculating the illumination intensity and the illumination angle according to the short-circuit current of the two photovoltaic panels and the inclination angles of the two photovoltaic panels. For the sake of convenience of distinction, the first photovoltaic panel and the second photovoltaic panel are hereinafter referred to, and the short-circuit current corresponding to the first photovoltaic panel is referred to as a first short-circuit current, and the short-circuit current corresponding to the second photovoltaic panel is referred to as a second short-circuit current.
Compare in acquireing illumination angle and illumination intensity through traditional sensor, utilize first photovoltaic electroplax and second photovoltaic electroplax to calculate illumination angle and illumination intensity, can greatly reduced manufacturing cost. When specifically setting up, first photovoltaic electroplax can set up to be parallel with carrier glass, and second photovoltaic electroplax and first photovoltaic electroplax should be when setting up in order to be shone by sunshine at carrier glass with certain contained angle setting, first photovoltaic electroplax and second photovoltaic electroplax homoenergetic are shone by sunshine and do not have between first photovoltaic electroplax and the second photovoltaic electroplax and shelter from each other as being suitable. Taking the first photovoltaic panel and the corresponding carrier glass in parallel, and the second photovoltaic panel is disposed on the horizontal plane as an example, at this time, the included angle of the plane where the first photovoltaic panel and the second photovoltaic panel are located is equal to the included angle of the carrier glass, and the illumination intensity and the illumination angle can be calculated by the following relational expressions:
equivalent illumination intensity R of the first photovoltaic panel1Comprises the following steps:
wherein, I1The first short-circuit current is the collected short-circuit current of the first photovoltaic panel; alpha is alphaiThe current temperature coefficient theory of the photovoltaic panel is factory known data, and T is the ambient temperature; 1000 is standard illumination intensity, unit is 1000W/m2. In particular, the ambient temperature can be detected by a temperature sensor or a temperature signal obtained by an ambient temperature sensor on the vehicle can be obtained from the vehicle bus.
Equivalent illumination intensity R of the second photovoltaic panel2Comprises the following steps:
wherein I2 is a second short-circuit current, that is, the collected short-circuit current of the second photovoltaic panel; alpha is alphaiThe current temperature coefficient theory of the photovoltaic panel is factory known data, and T is the ambient temperature; 1000 is standard illumination intensity, unit is 1000W/m2。
Let the angle of incidence of sunlight on the first photovoltaic panel be theta1The angle of incidence of sunlight on the second photovoltaic panel is theta2And the included angle between the planes of the first photovoltaic panel and the second photovoltaic panel is a fixed value beta.
And, β ═ θ1-θ2；
Wherein R is the actual illumination intensity, and R1 is the equivalent illumination intensity of the equivalent vertical irradiation on the first photovoltaic panel; r2 is the equivalent illumination intensity of the equivalent vertical illumination on the second photovoltaic panel.
Using the above-mentioned relation to theta1、θ2And the formula of beta can solve the practical illumination intensity as:
substituting the relation of the illumination intensity into the above-mentioned relation theta1、θ2And β, the relationship is given by:
β＝f3(I1,I2,R)；
when implemented, due to theta1Is the angle, theta, of the incident sunlight on the first photovoltaic panel2Beta is the included angle of the plane where the first photovoltaic panel and the second photovoltaic panel are located, and meanwhile, beta is also equal to the inclination angle of the corresponding carrier glass. Therefore, the incident angle of the sunlight can be directly obtained as theta2Of course, the inclination angles of the first photovoltaic panel and the second photovoltaic panel may be set in other manners, but in any case, the illumination angle can be calculated from the relationship between the inclination angle of the first photovoltaic panel, the inclination angle of the second photovoltaic panel, and the inclination angle of the carrier glass.
In specific implementation, referring to fig. 6, an included angle between the two photovoltaic panels is an obtuse angle. Namely, one edge of the first photovoltaic panel is fixedly connected with one edge of the second photovoltaic panel, so that the angle between the two is an obtuse angle, and then the two are fixedly installed together. The installation of being convenient for like this, simultaneously, set for the obtuse angle between first photovoltaic electroplax and the second photovoltaic electroplax, can be favorable to preventing to take place the phenomenon of sheltering from each other between first photovoltaic electroplax and the second photovoltaic electroplax. Simultaneously, be convenient for can be applicable to great illumination angle variation range through first photovoltaic electroplax and second photovoltaic electroplax. Of course, the two photovoltaic panels may be separately disposed, so that the plane where the first photovoltaic panel is located and the plane where the second photovoltaic panel is located are arranged at a preset included angle.
Example 2
The difference between this embodiment and embodiment 1 is that after the sunshade starts, in embodiment 1, the slope length of the shading area on the vehicle glass and the target transmittance are calculated directly according to the current illumination information and the eye position information of the person in the vehicle (which may be a fixed value, or a measured value at a set time, such as after the seat is adjusted or after the vehicle is started), and the shading is performed accordingly. Namely, the slope length of the shielding area on the carrier glass and the target transmittance are calculated, and then the shielding area is adjusted according to the slope length of the shielding area on the carrier glass and the target transmittance. The same parts are not described herein again, and reference may be made to embodiment 1.
Because the change of the acquired illumination information includes the change of the illumination angle and the change of the illumination intensity, the following three conditions are divided according to the change of the illumination angle and the change of the illumination intensity:
in the first case, only the illumination angle is changed, and the illumination angle at this time is represented as θi+1,2At this time, the variation of the illumination angle needs to be calculated, and the variation of the slope length of the shielding area is calculated according to the variation of the illumination angle; and then adjusting the length of the shielding area along the slope direction of the corresponding carrier glass according to the variable quantity of the length of the shielding area slope. In thatIn the calculation process, sunlight is used as parallel light for calculation. Referring specifically to fig. 4, the following can be obtained by calculation:
Hi＝Li*tanθi,2；
the height Hi is the shading height at the current moment, and the distance Li is the horizontal distance between the lower edge of the current shading area and the eye position of the person in the traffic carrier, and the horizontal distance can be a preset value or a measured value; thetai,2The illumination angle obtained in the previous time; wherein Δ Lsi is the variation of the slope length of the occlusion region.
And adjusting the size of the shielding area according to the calculated variation of the slope length of the shielding area, wherein the transmittance of the region corresponding to the variation of the slope length of the shielding area is shielded according to the target transmittance calculated in the previous time. So, can keep sheltering from the size in illumination angle looks adaptation in the district all the time to personnel do not receive the interference of sunshine direct irradiation in guaranteeing the traffic carrier.
Specifically, the number of sunshade units may be calculated as follows, Ni ═ Δ Lsi × n/Ls; wherein Ls is the sum of the slope lengths of all the sunshade units, n is the total number of the sunshade units, and Ni is the number of the sunshade units needing to be adjusted. During specific calculation, when the slope length of the shielding area needs to be increased, the calculation result of Ni is rounded upwards, that is, if the calculation result of Ni is 10.2, the value of Ni should be 11; when the slope length of the shielding area needs to be reduced, the calculation result of Ni is rounded downwards, for example, when the calculation result of Ni is 10.2, the value of Ni should be 10. The length of the slope of the shielding area needs to be larger or smaller, depending on whether the illumination angle is larger or smaller.
In the second case, only the illumination intensity is changed, and the illumination angle is not changed; and calculating the target transmittance according to the variation of the illumination intensity. And adjusting the shielding area according to the corresponding target transmittance. In this case, the transmittance of the shielding region may be changed as needed. The change of the transmittance of the shielding area is actually realized by the control voltage, and when the illumination intensity changes, the control voltage is correspondingly changed.
For example, when the intensity of light is changed from R1 at the previous time to R1' at the present time, according to the control formula of the control voltage in embodiment 1, it can be known that,
when the illumination intensity changes, the corresponding control voltage should be:
wherein, VrefFor the rated reference voltage, V is the current control voltage, V 'is the control voltage that should be adjusted, and Δ V' is the variation of the control voltage.
The target transmittance after change should be:
so, can realize the regulation to the target transmittance to make the light-shading district carry out the shading with suitable target transmittance, thereby realize neither influencing the driver's sight, can see the effect of the external environment that the light-shading district corresponds clearly again.
In the third case, the illumination intensity and the illumination angle are both changed, in which case the variation of the slope length of the occlusion region is calculated according to the calculation method in the first case, and the target transmittance is calculated according to the calculation method in the second case. And then adjusting the shielding area according to the variation of the slope length of the shielding area and the corresponding target transmittance. No further description is given here, and in this way, the blocking area can be adjusted to adapt to the change of the illumination angle and the illumination intensity.
Example 3
Referring to fig. 5 and 6, the present embodiment provides a sunshade device, which includes an illumination sensor 1, a controller, and a sunshade component 2; specifically, the illumination sensor 1 is configured to acquire illumination angle information and illumination intensity information.
The sunshade component 2 is a transparent liquid crystal display, and the sunshade component 2 is installed on the carrier glass 3. Through transparent liquid crystal display spare, can adjust transparent liquid crystal display spare's transmittance as required to form the suitable shading district of a size and position on transparent liquid crystal display spare, thereby can guarantee to carry out the sunshade with suitable transmittance on the one hand, when can preventing that sunshine from disturbing the interior personnel's sight of traffic carrier, can also guarantee to shelter from the district and have certain transparency, especially can guarantee that the driver has sufficient field of vision.
The controller and the illumination respectively indicate that the people in the transportation vehicle comprise a driver and/or a passenger. For different drivers and passengers, the shielding region is also positioned on different carrier glasses, for example, to bring a good sun-shading effect to the driver, the shielding region can be arranged on the front windshield and the front window glass at the driver side, and of course, can be only arranged on the front windshield or only arranged on the front window glass at the driver side, and can be specifically arranged as required; in order to bring good sun-shading effect to passengers on a passenger seat, the shading areas can be arranged on a front windshield and a front window glass on the side of the driver; in order to bring good sunshade effect to the passengers in the back row, a shielding area can be arranged between the sensor 1 and the sunshade component 2 to be electrically connected; the controller is used for acquiring illumination information through the illumination sensor 1 and controlling the sun-shading component 2 to shade sun according to the illumination information. Specifically, the controller is configured to calculate a length of a slope of the occlusion region, so as to determine a size of the occlusion region according to the illumination information, and adjust the size of the occlusion region according to a change in the illumination information.
As a preferred embodiment, the illumination sensor 1 comprises a first photovoltaic panel 11 and a second photovoltaic panel 12. Specifically, for convenience of calculation and convenience of manufacturing, the first photovoltaic panel 11 and the second photovoltaic panel 12 have the same shape and size, and both the first photovoltaic panel 11 and the second photovoltaic panel 12 are provided in a rectangular shape, but of course, are not limited to the rectangular shape. The first photovoltaic panel 11 and the second photovoltaic panel 12 have the same rated short circuit current. The first photovoltaic panel 11 and the second photovoltaic panel 12 are arranged at different tilt angles. Of course, for the sake of calculation, at the time of specific setting, the inclination angles of the first photovoltaic panel 11 and the second photovoltaic panel 12 are known, and the included angle therebetween is also known. In practice, the first photovoltaic panel 11 and the second photovoltaic panel 12 should have the same model, i.e. be manufactured using the same process.
The problem of using the first photovoltaic panel 11 and the second photovoltaic panel 12 to obtain the illumination information is to be explained as follows: the output current of the photovoltaic panel under the unit area is in direct proportion to the illumination intensity. Under the condition of constant temperature, the voltage of the photovoltaic panel is basically independent of the illumination intensity. Under the condition of the same illumination intensity R and temperature T, the output current I of the photovoltaic panels of the same type is in direct proportion to the area of the photovoltaic current. Since the earth is far away, the emitted light can be approximately parallel light when the light is transmitted to the earth surface, so that the light energy incident to the photovoltaic panel is the same, if the installation angles of the photovoltaic panel are different, the effective areas in the direction perpendicular to the incident light are different, and the generated currents are different.
The controller is further configured to obtain a first short-circuit current of the first photovoltaic panel 11 and a second short-circuit current of the second photovoltaic panel 12, and calculate the illumination angle and the illumination intensity according to the first short-circuit current and the second short-circuit current. In particular, the controller may be installed in the control box, and the first photovoltaic panel 11 and the second photovoltaic panel 12 are disposed at a predetermined angle on the outer circumference of the control box. Specifically, the method for calculating the illumination angle and the illumination intensity through the first short-circuit current, the second short-circuit current, and the relevant parameters of the first photovoltaic panel 11 and the second photovoltaic panel 12 may refer to embodiment 1, and details are not repeated here.
As a preferred embodiment, the controlling the sunshade 2 according to the illumination information by the controller specifically includes: calculating the target transmittance of the sunshade component 2 according to the illumination intensity; calculating the slope length of a shielding area of the sun-shading part 2 according to the illumination angle; and controlling the sunshade component 2 to shade the sun according to the target transmittance in the region corresponding to the slope length of the shading region along the direction from top to bottom. Therefore, the size and the transmittance of the shielding area can be adjusted according to the change of the illumination information.
Referring to fig. 5, as a preferred embodiment, the sunshade component 2 includes a plurality of sunshade units 21, the sunshade units 21 are strip-shaped transparent liquid crystal displays, and the plurality of sunshade units 21 are sequentially laid on the carrier glass 3 from top to bottom. The plurality of sunshade units 21 are all connected with the controller; the controller is further configured to calculate the number of the sunshade units 21 to be turned on according to the slope length of the shielding area, calculate the control voltage of the corresponding sunshade unit 21 according to the target transmittance, and control the corresponding number of the sunshade units 21 to be turned on from top to bottom according to the control voltage. Specifically, the calculation of the number of the sunshade units 21 to be opened and the target transmittance is the same as that in embodiment 1 or 2, and will not be described again. It should be noted that the plurality of sunshade units 21 may be a tiled transparent liquid crystal array or a strip-shaped transparent liquid crystal film, but in any case, the sunshade units 21 have equal sizes along the slope direction of the carrier glass 3. More preferably, there is no overlap and no gap between the adjacent two sunshade units 21.
As a preferred embodiment, the illumination sensor 1 is mounted on a carrier glass 3. Specifically, the illumination sensor 1 may be mounted on the outer side of the vehicle glass 3, or may be mounted on the inner side of the vehicle glass 3, and whether mounted on the inner side or the outer side of the vehicle glass 3, it should preferably not affect the line of sight of the person in the vehicle, especially not affect the line of sight of the driver. Install illumination sensor 1 on carrier glass 3, can guarantee that personnel's eye is by when sunshine penetrates directly in the traffic carrier, illumination sensor 1 can detect corresponding illumination information, and then advances to open and shelter from the district and shelter from sunshine.
As a preferred embodiment, the sunshade device further comprises a voice recognition component; the voice recognition component is electrically connected with the controller. The controller is further used for acquiring an effective voice instruction through the voice recognition component and changing the number of the opened sunshade units 21 and/or the transmittance of the shading area according to the effective voice instruction. For the speech recognition and output, it is known to those skilled in the art, and those skilled in the art can implement the speech recognition and output, and the description thereof is omitted here.
When a user wants to control the shading effect through voice, the voice control can be triggered through the keywords.
For example,
the user inputs through voice: hello, sun visor, open the language help.
The user inputs through voice: rising a little upwards.
The liquid crystal shading sheet is used for controlling the shading height to be upward, namely the upward rising amount of the liquid crystal shading sheet is controlled to be K1 × Ls/n. Wherein, K1 is the number of sunshade units that software control opened, sets up according to user's taste. Ls is the total length of the multiple sunshade units 21 along the carrier glass, and n is the total number of sunshade units 21.
Or the user inputs by voice: a little lower down.
The downward movement of the shading height is controlled, namely the downward reduction amount of the liquid crystal shading sheet switch control is K2 × Ls/n. Wherein, K2 is the number of the liquid crystal light-shielding sheets that the software control opens, and is set according to the user's preference. Ls is the total length of the multiple sunshade units 21 along the carrier glass, and n is the total number of the sunshade units 21; so, can realize adjusting the sunshade effect through sound, do not need navigating mate manually operation in the use, be favorable to guaranteeing the security of driving in-process.
Example 4
Referring to fig. 7 and 8, the present embodiment provides a sunshade system, which includes a data processing unit, an illumination information collecting unit, and a transparent liquid crystal display unit. Specifically, the data processing unit functions as a controller, on the one hand, calculates the corresponding parameters according to the calculation method in embodiment 1 or 2, and on the other hand, is also capable of controlling the shading effect of the transparent liquid crystal display unit by adjusting the control voltage by outputting the control signal.
The data processing unit is respectively connected with the illumination information acquisition unit and the transparent liquid crystal display unit;
the data processing unit is used for acquiring illumination information through the illumination information acquisition unit, and controlling the size of a shielding area and the transmittance of the shielding area of the transparent liquid crystal display unit according to the illumination information so as to enable eyes of people in the corresponding traffic carrier to be positioned in a shadow formed by the corresponding shielding area. Specifically, the control of the transmittance may be controlled by adjusting the control voltage of the transparent liquid crystal display unit, and for the calculation of the control voltage, reference is made to embodiments 1 and 2. It should be noted that the eye position information of the person in the transportation vehicle may be set by using the positions of a certain percentage of the eye ellipses in ergonomics, or may be a preset value, or of course, may be implemented by using a sensor to detect the positions of the eyes of the person.
As a preferred embodiment, the transparent liquid crystal display unit includes a plurality of liquid crystal display arrays, liquid crystal driving circuits corresponding to the liquid crystal display arrays one to one, and array control switches corresponding to the liquid crystal driving circuits one to one. Specifically, the liquid crystal driving circuit is used for driving a corresponding liquid crystal display array to work. The liquid crystal display array is electrically connected with the corresponding liquid crystal driving circuit, and the liquid crystal driving circuit is electrically connected with the data processing unit through the corresponding array control switch. The array type control switch is used for controlling the corresponding driving circuit to work so as to control the liquid crystal array to work according to the corresponding control voltage.
As a better implementation mode, the sunshade system further comprises a light transmission adjusting circuit connected with the array control switches in a one-to-one correspondence manner, and the array control switches are electrically connected with the data processing unit through the corresponding light transmission adjusting circuits. Specifically, the light transmission adjusting circuit is used for generating a voltage matched with the corresponding liquid crystal array according to the output signal of the data processing unit, so that the liquid crystal array controls the corresponding control voltage to work after the corresponding array control switch is conducted. Thereby enabling the corresponding liquid crystal array to operate at the corresponding target transmittance.
As a preferred implementation mode, the illumination information acquisition unit comprises an illumination information acquisition circuit, a first photovoltaic electric plate and a second photovoltaic electric plate arranged at an included angle with the first photovoltaic electric plate. Specifically, the illumination information acquisition circuit is electrically connected with the data processing unit, the first photovoltaic panel and the second photovoltaic panel respectively. The illumination information acquisition circuit is used for acquiring a first short-circuit current of the first photovoltaic electric plate and a second short-circuit current of the second photovoltaic electric plate and outputting the first short-circuit current and the second short-circuit current to the data processing unit. Compared with a method for acquiring the illumination intensity and the illumination angle by using the existing sensor, the method has the advantages that the illumination intensity and the illumination angle are acquired and calculated by using the first photovoltaic electric plate and the second photovoltaic electric plate, the structure is simple, and the production and manufacturing costs are low.
As a preferred embodiment, the sunshade system further comprises a voice recognition unit, wherein the voice recognition unit is electrically connected with the data processing unit; the data processing unit is also used for acquiring an effective voice instruction through the voice recognition unit and controlling the transparent liquid crystal display unit to adjust the size of the shielding area and the target transmittance of the shielding area according to the effective voice instruction. Specifically, obtaining the valid voice command by the voice recognition unit belongs to the prior art, and is not described herein again. Through being applied to solar shading system with the speech recognition unit, be favorable to adjusting the size that shelters from the district as required, and at the in-process that uses, do not need driver's hand to break away from the steering wheel to make the accommodation process that shelters from the district size safe convenient more, and can adapt to different driver's hobby.
As a preferred embodiment, the sunshade system further comprises a power supply unit, wherein the power supply unit is electrically connected with the data processing unit; the power supply unit is used for supplying power to the transparent liquid crystal display unit through the data processing unit. Specifically, the power supply unit is connected with a storage battery on the automobile, and meanwhile, the power supply unit is also used for supplying power to the voice recognition unit and the data processing unit. In other words, the power supply unit is used to supply power to the sunshade system. Specifically, the power supply unit comprises a voltage reduction circuit and a voltage stabilizing circuit, wherein the voltage reduction circuit is used for being connected with an external power supply; the voltage stabilizing circuit is electrically connected with the voltage reducing circuit and the data processing unit. The voltage reduction circuit can reduce the voltage of the power supply line and then supply power to the sun-shading system, and the voltage stabilizing circuit is used for keeping the voltage stable. Specifically, the voltage reduction circuit is a DC-DC voltage reduction circuit, and the voltage stabilizing circuit is a DC-DC voltage stabilizing circuit.
It should be noted that the sun shading system is further provided with a data storage unit, and the data storage unit is used for storing data information, for example, the data storage unit is used for storing the illumination information acquisition unit, the eye position information of the person in the transportation vehicle, the set angles of the first photovoltaic panel and the second photovoltaic panel, and the like.
Example 5
The present embodiment proposes an automobile, wherein the automobile is shaded using the shading method according to embodiment 1, so as to prevent the driver from being disturbed by sunlight during driving. Specifically, the steps of the sun-shading method can refer to embodiment 1, and are not described herein again.
Example 6
This embodiment proposes an automobile, wherein the automobile is shaded using the shading method according to embodiment 2, so as to prevent the driver from being disturbed by sunlight during driving. Specifically, the steps of the sun-shading method can be referred to in embodiment 2, and are not described herein again.
Example 7
This embodiment proposes an automobile, wherein the automobile comprises the sunshade device according to embodiment 3. The installation and the specific structure of the sun-shading device on the automobile refer to embodiment 3, which is not described herein again.
Example 8
This embodiment proposes an automobile, wherein the automobile includes the sunshade system as in embodiment 4. The connection mode of the sunshade system to the automobile and the structure of the sunshade system can refer to embodiment 4, and details are not repeated here.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (16)
1. A sun-shading method for people in a traffic carrier is characterized by comprising the following steps,
two photovoltaic electroplax that are used for acquireing illumination information that set up according to different predetermined inclination, and one of them photovoltaic electroplax is parallel with carrier glass, it includes to acquire illumination information: respectively acquiring short-circuit current of the two photovoltaic panels under the irradiation of sunlight; calculating the illumination intensity and the illumination angle according to the short-circuit current and the inclination angles of the two photovoltaic panels;
acquiring illumination information and eye position information of personnel in the traffic carrier;
calculating the slope length of a shielding area on the corresponding carrier glass and the target transmittance according to the illumination information and the eye position information;
and forming a shielding area according to the slope length of the shielding area and the target transmittance, so that the eyes of the corresponding personnel in the traffic carrier are positioned in the shadow formed by the shielding area.
2. The sunshade method for the person in the transportation vehicle according to claim 1, wherein the eye position information is a preset value or a preset measurement value;
calculating the length of the slope of the occlusion region specifically comprises: calculating the slope length of the shielding area according to the illumination angle;
calculating the target transmittance specifically includes: and calculating the target transmittance according to the illumination intensity.
3. The method of claim 2, further comprising, after the change in the lighting information obtained:
determining the variation of the slope length of the shielding area according to the variation of the illumination angle;
adjusting the length of the shielding area along the slope direction of the corresponding carrier glass according to the variable quantity of the slope length of the shielding area; and/or
Determining the variation of the target transmittance according to the variation of the illumination intensity;
and adjusting the target transmittance of the shielding area according to the variable quantity of the target transmittance.
4. The method for covering persons in a transportation vehicle according to any one of claims 1 to 3, wherein a shading unit for electrically controlled shading is provided on the vehicle glass;
forming the shielding area according to the shielding area slope length and the target transmittance specifically comprises:
calculating the number of the sunshade units needing to be opened according to the slope length of the shielding area and the length of each sunshade unit along the slope direction;
calculating the corresponding control voltage of the sunshade unit according to the target transmittance;
and controlling the sun shading units to act according to the number of the sun shading units which are started according to the corresponding control voltage and needs so as to form the shading area.
5. A sunshade device is characterized by comprising an illumination sensor, a controller and a sunshade component;
the sunshade component is arranged on the corresponding carrier glass;
the controller is electrically connected with the illumination sensor and the sun-shading component respectively; the illumination sensor includes: the device comprises two photovoltaic panels which are arranged according to different preset inclination angles and used for acquiring illumination information, wherein one photovoltaic panel is parallel to carrier glass, and the illumination information comprises illumination intensity and an illumination angle;
the controller is used for acquiring illumination information through the illumination sensor and controlling the sun-shading part to shade according to the illumination information and preset eye position information of people in the carrier.
6. Sunshade means according to claim 5,
the illumination sensor comprises a first photovoltaic panel and a second photovoltaic panel; the second photovoltaic panel is the same size and shape as the first photovoltaic panel;
the first photovoltaic panel and the second photovoltaic panel are arranged at different inclination angles;
the controller is further configured to obtain a first short-circuit current of the first photovoltaic panel and a second short-circuit current of the second photovoltaic panel, and calculate the illumination angle and the illumination intensity according to the first short-circuit current and the second short-circuit current.
7. The sunshade device of claim 6, wherein the controller controlling the sunshade component according to the illumination information specifically comprises:
calculating the target transmittance of the sun-shading component according to the illumination intensity;
calculating the slope length of a shielding area of the sun-shading component according to the illumination angle;
and controlling the sunshade component to shade the sun according to the target transmittance in the region corresponding to the slope length of the shading region along the direction from top to bottom.
8. The sunshade device according to claim 7, wherein said sunshade means includes a plurality of sunshade units, said sunshade units being strip-shaped transparent liquid crystal displays, said plurality of sunshade units being laid on the vehicle glass in order in a top-to-bottom direction;
the plurality of sunshade units are connected with the controller;
the controller is also used for calculating the opening number of the sunshade units according to the slope length of the shielding area, calculating the control voltage of the corresponding sunshade units according to the target transmittance, and controlling the opening of the corresponding number of sunshade units from top to bottom according to the control voltage.
9. Sunshade apparatus according to claim 8, further comprising a voice recognition component; the voice recognition component is electrically connected with the controller;
the controller is further used for obtaining an effective voice instruction through the voice recognition component and changing the number of the opened shading units and/or the transmittance of the shading area according to the effective voice instruction.
10. A sun-shading system is characterized by comprising a data processing unit, an illumination information acquisition unit and a transparent liquid crystal display unit; the illumination information acquisition unit includes: two photovoltaic electroplax that are used for acquireing illumination information that set up according to different predetermined inclination, and one of them photovoltaic electroplax is parallel with carrier glass, it includes to acquire illumination information: respectively acquiring short-circuit current of the two photovoltaic panels under the irradiation of sunlight; calculating the illumination intensity and the illumination angle according to the short-circuit current and the inclination angles of the two photovoltaic panels;
the data processing unit is respectively connected with the illumination information acquisition unit and the transparent liquid crystal display unit;
the data processing unit is used for acquiring illumination information through the illumination information acquisition unit, determining the slope length of a shielding area and the target transmittance of the shielding area according to the illumination information, and forming the shielding area according to the slope length of the shielding area and the target transmittance through the transparent liquid crystal display unit so that eyes of people in the traffic carrier are positioned in a shadow formed by the shielding area.
11. The shading system of claim 10, wherein the transparent liquid crystal display unit includes a plurality of liquid crystal display arrays, liquid crystal driving circuits in one-to-one correspondence with the liquid crystal display arrays, and array control switches in one-to-one correspondence with the liquid crystal driving circuits;
the liquid crystal display array is electrically connected with the corresponding liquid crystal driving circuit, and the liquid crystal driving circuit is electrically connected with the data processing unit through the corresponding array control switch.
12. The shading system of claim 11, further comprising light transmission adjustment circuits connected in one-to-one correspondence with the array control switches, the array control switches being electrically connected to the data processing unit through the corresponding light transmission adjustment circuits.
13. The shading system according to any one of claims 10 to 12, wherein the illumination information acquisition unit comprises in particular an illumination information acquisition circuit, a first photovoltaic panel and a second photovoltaic panel arranged at an angle to the first photovoltaic panel;
the illumination information acquisition circuit is used for acquiring a first short-circuit current of the first photovoltaic electric plate and a second short-circuit current of the second photovoltaic electric plate and outputting the first short-circuit current and the second short-circuit current to the data processing unit.
14. The shading system according to any one of claims 10-12, further comprising a voice recognition unit, said voice recognition unit being electrically connected to said data processing unit; the data processing unit is also used for acquiring an effective voice instruction through the voice recognition unit and controlling the transparent liquid crystal display unit to adjust the size of the shielding area and the transmittance of the shielding area according to the effective voice instruction.
15. Sunshade system according to any one of claims 10-12, further comprising a power supply unit, which is electrically connected to the data processing unit; the power supply unit is used for supplying power to the transparent liquid crystal display unit through the data processing unit;
the power supply unit comprises a voltage reduction circuit and a voltage stabilizing circuit, and the voltage reduction circuit is used for being connected with an external power supply;
the voltage stabilizing circuit is electrically connected with the voltage reducing circuit and the data processing unit.
16. An automobile which is sunshade-protected using the sunshade method according to any one of claims 1 to 4;
or comprising a sun shading device according to any one of claims 5-9;
or comprising a sun shading system as claimed in any one of claims 10-15.
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| CN112789185B (en) * | 2020-12-31 | 2023-08-04 | 华为技术有限公司 | Method and system for digital automatic shading of vehicles |
| CN113928096A (en) * | 2021-11-22 | 2022-01-14 | 延锋伟世通电子科技（上海）有限公司 | Vehicle-mounted automatic control sun-shading device |
| CN114557566B (en) * | 2022-02-08 | 2023-06-27 | 珠海格力电器股份有限公司 | Bed posture adjustment system and method, storage medium and electronic equipment |
| CN115366630A (en) * | 2022-09-14 | 2022-11-22 | 广州小鹏汽车科技有限公司 | Shading device adjusting method, system, vehicle and storage medium |
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| JP2002067690A (en) * | 2000-08-31 | 2002-03-08 | Auto Network Gijutsu Kenkyusho:Kk | LCD visor |
| CN101592793B (en) * | 2008-05-27 | 2010-12-01 | 北京市加华博来科技有限公司 | Full-automatic angle shading eyeglasses |
| CN101592792A (en) * | 2008-05-30 | 2009-12-02 | 北京市加华博来科技有限公司 | Full-automatic zoning is regulated the Mirror frame structure of sunglasses |
| CN101607520B (en) * | 2008-06-17 | 2012-11-14 | 联想(北京)有限公司 | Shading system, automobile shading system and method |
| CN203472475U (en) * | 2013-09-03 | 2014-03-12 | 北京汽车股份有限公司 | Sun visor system and automobile with same |
| CN104216420A (en) * | 2014-09-28 | 2014-12-17 | 陕西易阳科技有限公司 | Solar automatic tracking system |
| CN205010099U (en) * | 2015-09-07 | 2016-02-03 | 许金福 | On -vehicle self -adaptation eyeshield system |
| CN109383242B (en) * | 2017-08-04 | 2020-12-22 | 长城汽车股份有限公司 | Sunshade device of automobile, control method and automobile |
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