An automotive liquid crystal display system

Abstract

An embodiment of this specification provides an automotive liquid crystal display system, belonging to the field of optical systems. The system includes a liquid crystal display screen, and further includes: a binocular imaging component for acquiring an image pair of a driver; a parameter acquisition component for acquiring the pose of the driver's seat; a processor for determining the eye spatial position of the driver based on the image pair of the driver, and further for determining the angle adjustment information of the liquid crystal display screen based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen; an angle adjustment component for supporting the liquid crystal display screen and further for adjusting the display angle of the liquid crystal display screen based on the angle adjustment information of the liquid crystal display screen. It has the advantage that it can adjust the display angle of the liquid crystal display screen based on the personal characteristics of the driver, making it more convenient for the driver to view the liquid crystal display screen.

Description

Technical Field

[0001] This specification relates to the field of optical systems, and particularly to an automotive liquid crystal display system. Background Art

[0002] Currently, with the intelligence of automobiles, display screens, as automotive information display devices and entertainment display devices, are widely used in automobiles, especially in electric vehicles. The Chinese patent with the application number CN202122960511.6 discloses a display screen, a display device, and a vehicle. Among them, the display screen includes a glass substrate, a plurality of coating layers, and a plurality of PI film layers. The plurality of coating layers and the plurality of PI film layers are alternately stacked in the thickness direction and are disposed on the glass substrate. The display screen of an automobile is generally fixedly disposed in the instrument panel and cannot be moved and adjusted. However, due to reasons such as reflection of the automotive display screen, the viewing angle and the horizontal viewing distance angle of the display screen have a great influence on the driver's viewing of the display screen.

[0003] Therefore, it is necessary to provide an automotive liquid crystal display system for adjusting the display angle of the liquid crystal display screen based on the personal characteristics of the driver, which is more convenient for the driver to view the liquid crystal display screen. Summary of the Invention

[0004] One embodiment of this specification provides an automotive liquid crystal display system, including a liquid crystal display screen, and further including: a binocular imaging component for acquiring an image pair of the driver; a parameter acquisition component for acquiring the pose of the driver's seat; a processor for determining the eye spatial position of the driver based on the image pair of the driver, and further for determining the angle adjustment information of the liquid crystal display screen based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen; an angle adjustment component for supporting the liquid crystal display screen and further for adjusting the display angle of the liquid crystal display screen based on the angle adjustment information of the liquid crystal display screen.

[0005] In some embodiments, the binocular imaging component includes a left camera and a right camera. The left camera is used to acquire the main image of the driver, and the right camera is used to acquire the auxiliary image of the driver. The image pair includes the main image of the driver and the auxiliary image of the driver. The processor determines the eye spatial position of the driver based on the image pair of the driver, including: determining the matching pixel points between the main image of the driver and the auxiliary image of the driver; obtaining the disparity value according to the matching pixel points; and calculating and obtaining the eye spatial position of the driver according to the disparity value.

[0006] [1]In some embodiments, the system further includes a ranging component, which includes a vertical ranging component and a horizontal ranging component. The vertical ranging component is used to obtain the vertical distance from the driver along the vertical direction, and the horizontal ranging component is used to obtain the horizontal distance from the driver along the horizontal direction. The system further includes a triaxial acceleration sensor disposed on the driver's seat, which is used to collect the triaxial acceleration of the driver's seat when the binocular imaging component obtains the image pair of the driver. The processor is further used to determine the confidence level of the image pair based on the vertical distance and the horizontal distance obtained by the ranging component and the triaxial acceleration of the driver's seat collected by the triaxial acceleration sensor. The processor is further used to, when the confidence level of the image pair is less than the confidence level threshold, repeatedly execute obtaining the image pair of the driver again, determining the confidence level of the image pair of the driver obtained again, until the confidence level of the image pair obtained again is greater than or equal to the confidence level threshold.

[0007] [2]In some embodiments, the processor determines the angle adjustment information of the liquid crystal display screen based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen, including: establishing a multivariate nonlinear regression model, where the independent variables of the multivariate nonlinear regression model include the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen, and the dependent variable of the multivariate nonlinear regression model includes the optimal display angle of the liquid crystal display screen; determining the parameters of the multivariate nonlinear regression model through multiple samples; determining the optimal display angle of the liquid crystal display screen based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen through the multivariate nonlinear regression model after determining the parameters; and determining the angle adjustment information of the liquid crystal display screen based on the optimal display angle of the liquid crystal display screen.

[0008] [3]In some embodiments, it further includes an induction start component, which includes a seat pressure sensing device and a light sensing device. The processor is further used to turn on the light sensing device when the seat pressure sensing device detects that there is a driver on the driver's seat. The light sensing device is used to obtain the light intensity in the cab. The processor is further used to turn on the binocular imaging component when the light intensity in the cab is greater than a preset light intensity threshold. The processor is further used to, when the light intensity in the cab is less than or equal to the preset light intensity threshold, repeatedly execute adjusting the display angle of the liquid crystal display screen to a preset display angle through the angle adjustment component, controlling the light sensing device to collect the light intensity in the cab at a preset acquisition frequency, until it is determined that the light intensity in the cab is greater than the preset light intensity threshold, and then turn on the binocular imaging component.

[0009] In some embodiments, the processor is further configured to: when it detects that the driver leaves the driver's seat, if it detects again that there is a driver on the driver's seat within a preset time period, determine whether to turn on the light sensing device based on the pressure sensed by the seat pressure sensing device, and perform a secondary adjustment of the display angle of the liquid crystal display screen; if it detects again that there is a driver on the driver's seat outside the preset time period, turn on the light sensing device and perform a secondary adjustment of the display angle of the liquid crystal display screen.

[0010] In some embodiments, it further includes a left image acquisition device and a right image acquisition device. Among them, the left image acquisition device is used to acquire images of the left outer side of the vehicle, and the right image acquisition device is used to acquire images of the right outer side of the vehicle; the liquid crystal display screen is further used to display the images of the left outer side of the vehicle acquired by the left image acquisition device and / or the images of the right outer side of the vehicle acquired by the right image acquisition device.

[0011] In some embodiments, the processor is further configured to: obtain the steering information of the vehicle, and control the liquid crystal display screen to display the images of the left outer side of the vehicle acquired by the left image acquisition device and / or the images of the right outer side of the vehicle acquired by the right image acquisition device based on the steering information of the vehicle.

[0012] In some embodiments, the processor is further configured to adjust the screen resolution of the liquid crystal display screen based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen.

[0013] In some embodiments, the processor is further configured to adjust the brightness of the liquid crystal display screen according to the light intensity in the cab. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] This specification will be further described by way of exemplary embodiments, and these exemplary embodiments will be described in detail through the drawings. These embodiments are not restrictive. In these embodiments, the same numbers represent the same structures, where:

[0015] Figure 1 is a schematic block diagram of an automotive liquid crystal display system according to some embodiments of this specification;

[0016] Figure 2 is an exemplary flowchart of obtaining an image pair of a driver according to some embodiments of this specification;

[0017] Figure 3 is an exemplary flowchart of determining the eye spatial position of a driver based on an image pair of the driver according to some embodiments of this specification. Detailed implementation manners

[0018] To more clearly illustrate the technical solutions of the embodiments of this specification, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some examples or embodiments of this specification. For those of ordinary skill in the art, without creative efforts, this specification can also be applied to other similar scenarios based on these drawings. Unless obvious from the language context or otherwise stated, the same reference numerals in the figures represent the same structure or operation.

[0019] It should be understood that the "system", "device", "unit" and / or "module" used herein is a way to distinguish different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the said words can be replaced by other expressions.

[0020] As shown in this specification and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one" and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0021] Flowcharts are used in this specification to illustrate the operations performed by the systems according to the embodiments of this specification. It should be understood that the operations before or after do not necessarily need to be executed precisely in sequence. On the contrary, they can be executed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or one or several steps can be removed from these processes.

[0022] Figure 1 is a schematic diagram of the modules of an automotive liquid crystal display system shown in some embodiments of this specification. As Figure 1 shown, the automotive liquid crystal display system may include a binocular imaging component, a parameter acquisition component, a processor, and an angle adjustment component.

[0023] The binocular imaging component can be used to acquire an image pair of the driver. The binocular imaging component includes a left camera and a right camera. The left camera is used to acquire the main image of the driver, and the right camera is used to acquire the auxiliary image of the driver. Among them, the image pair includes the main image of the driver and the auxiliary image of the driver.

[0024] In some embodiments, the automotive liquid crystal display system may further include an induction start component, which includes a seat pressure sensing device and a light sensing device. Among them, the seat pressure sensing device can be arranged on the driver's seat and is used to obtain the pressure borne by the driver's seat; the light sensing device can be arranged inside the cab and is used to obtain the light intensity inside the cab.

[0025] In some embodiments, the automotive liquid crystal display system may further include a ranging component, which includes a vertical ranging component and a horizontal ranging component. The vertical ranging component is used to obtain the vertical distance from the driver along the vertical direction, and the horizontal ranging component is used to obtain the horizontal distance from the driver along the horizontal direction. Among them, the vertical ranging component may include an ultrasonic sensor. The ultrasonic sensor of the vertical ranging component can be used to obtain the vertical distance from the driver's head along the vertical direction. It can be understood that the vertical ranging component can be arranged on the roof of the vehicle; the horizontal ranging component may include an ultrasonic sensor. The ultrasonic sensor of the horizontal ranging component can be used to obtain the horizontal distance from a certain part of the driver (such as the shoulder, abdomen, etc.) along the horizontal direction. It can be understood that the horizontal ranging component can be arranged at the front of the vehicle. For example, the horizontal ranging component can be arranged at the dashboard.

[0026] In some embodiments, the automotive liquid crystal display system may further include a triaxial acceleration sensor arranged on the driver's seat, which is used to collect the triaxial acceleration of the driver's seat when the binocular imaging component obtains the pair of images of the driver.

[0027] Figure 2 is an exemplary flowchart of obtaining a pair of images of a driver shown according to some embodiments of this specification. As Figure 2 shown, obtaining a pair of images of a driver may include the following steps.

[0028] Step 210, obtain the pressure borne by the driver's seat through the seat pressure sensing device, and the processor determines whether there is a driver on the driver's seat according to the pressure borne by the driver's seat.

[0029] It can be understood that when the pressure borne by the driver's seat obtained by the seat pressure sensing device is greater than the preset pressure threshold, the processor can determine that there is a driver on the driver's seat.

[0030] Step 220, when the processor determines that there is a driver on the driver's seat according to the pressure borne by the driver's seat, obtain the vertical distance from the driver along the vertical direction through the vertical ranging component, and obtain the horizontal distance from the driver along the horizontal direction through the horizontal ranging component.

[0031] Step 230: The processor determines the calibrated spatial position of the driver based on the horizontal distance between the horizontal distance measurement component and the driver obtained in the horizontal direction and the horizontal distance between the horizontal distance measurement component and the driver obtained in the horizontal direction.

[0032] The processor can determine the calibrated spatial position of the driver based on the horizontal distance between the horizontal distance measurement component and the driver obtained in the horizontal direction and the horizontal distance between the horizontal distance measurement component and the driver obtained in the horizontal direction. The calibrated spatial position can be used to represent the approximate spatial position of the driver's eyes. In some embodiments, the processor can use a position determination model to determine the calibrated spatial position of the driver based on the horizontal distance between the horizontal distance measurement component and the driver obtained in the horizontal direction and the horizontal distance between the horizontal distance measurement component and the driver obtained in the horizontal direction. The position determination model can be a machine learning model. The input of the position determination model can include the horizontal distance between the horizontal distance measurement component and the driver obtained in the horizontal direction and the horizontal distance between the horizontal distance measurement component and the driver obtained in the horizontal direction, and the output of the position determination model can include the calibrated spatial position of the driver. The position determination model can include, but is not limited to, a neural network (NN), a convolutional neural network (CNN), a deep neural network (DNN), a recurrent neural network (RNN), etc. or any combination thereof. For example, the position determination model can be a model formed by combining a convolutional neural network and a deep neural network.

[0033] Step 240: Obtain the light intensity in the cab through the light sensing device. When the light intensity in the cab is greater than the preset light intensity threshold, the binocular imaging component is turned on. When the light intensity in the cab is less than or equal to the preset light intensity threshold, the processor repeatedly executes adjusting the display angle of the liquid crystal display screen to the preset display angle through the angle adjustment component, controlling the light sensing device to collect the light intensity in the cab at the preset collection frequency until it is determined that the light intensity in the cab is greater than the preset light intensity threshold, and then turns on the binocular imaging component.

[0034] In some embodiments, the processor can also be used to repeatedly execute adjusting the display angle of the liquid crystal display screen to the preset display angle through the angle adjustment component when the light intensity in the cab is less than or equal to the preset light intensity threshold, controlling the light sensing device to collect the light intensity in the cab at the preset collection frequency (for example, once every minute) until it is determined that the light intensity in the cab is greater than the preset light intensity threshold, and then turns on the binocular imaging component.

[0035] Specifically, when the light intensity in the cab collected for the first time is less than or equal to the preset light intensity threshold, the angle adjustment component can adjust the display angle of the liquid crystal display screen to the preset display angle; when the light intensity in the cab collected for the second time is less than or equal to the preset light intensity threshold, keep the display angle of the liquid crystal display screen adjusted to the preset display angle unchanged; if the light intensity in the cab collected for the third time is greater than the preset light intensity threshold, the processor can turn on the binocular imaging component. If the light intensity in the cab collected for the third time is less than or equal to the preset light intensity threshold, keep the display angle of the liquid crystal display screen adjusted to the preset display angle unchanged, and the processor waits for the light intensity in the cab collected by the light sensing device for the fourth time, and judges whether to turn on the binocular imaging component according to the light intensity in the cab collected for the fourth time. This cycle continues until the light intensity in the cab collected at a certain time is greater than the preset light intensity threshold, and the binocular imaging component is turned on. After the turning-on work of the binocular imaging component is completed, the processor will no longer judge whether to turn on the binocular imaging component.

[0036] Step 250, obtain an image pair of the driver through the binocular imaging component, and at the same time collect the three-axis acceleration of the driver's seat through the three-axis acceleration sensor.

[0037] Specifically, the main image of the driver can be obtained through the left camera of the binocular imaging component, and the auxiliary image of the driver can be obtained through the right camera at the same time to generate an image pair, which includes the main image of the driver and the auxiliary image of the driver.

[0038] In some embodiments, the processor can determine the vibration intensity of the driver's seat when the binocular imaging component obtains an image pair of the driver according to the three-axis acceleration of the driver's seat. It can be understood that the greater the three-axis acceleration of the driver's seat, the greater the vibration intensity of the driver's seat.

[0039] Step 260, the processor determines the eye spatial position of the driver based on the image pair of the driver.

[0040] Figure 3 is an exemplary flowchart for determining the eye spatial position of the driver based on the image pair of the driver shown in some embodiments of this specification, as Figure 3 shown, in some embodiments, the processor determines the eye spatial position of the driver based on the image pair of the driver, which may include:

[0041] Step 310, determine the matching pixel points between the main image of the driver and the auxiliary image of the driver. Among them, the processor can use a local matching algorithm, a global matching algorithm or a semi-global matching algorithm to determine the matching pixel points between the main image of the driver and the auxiliary image of the driver;

[0042] Step 320: Obtain the disparity value based on the matching pixel points;

[0043] Step 330: Calculate and obtain the eye spatial position of the driver based on the disparity value.

[0044] Step 270: The processor determines the confidence level of the image pair based on the vertical distance and horizontal distance obtained by the ranging component and the three-axis acceleration of the driver's seat collected by the three-axis acceleration sensor.

[0045] In some embodiments, the processor may determine the confidence level of the image pair based on the vertical distance and horizontal distance obtained by the ranging component and the three-axis acceleration of the driver's seat collected by the three-axis acceleration sensor.

[0046] Specifically, the processor may determine the first confidence level of the image pair according to the calibration spatial position determined based on the vertical distance and horizontal distance obtained by the ranging component and the three-axis acceleration of the driver's seat collected by the three-axis acceleration sensor, and the eye spatial position of the driver determined based on the image pair of the driver. By way of example only, the processor may determine the similarity between the calibration spatial position and the eye spatial position to determine the first confidence level of the image pair. It can be understood that the greater the similarity between the calibration spatial position and the eye spatial position, the greater the first confidence level.

[0047] The processor may also perform a secondary adjustment on the first confidence level according to the three-axis acceleration of the driver's seat collected by the three-axis acceleration sensor to determine the confidence level of the image pair. By way of example only, the processor may perform a secondary adjustment on the first confidence level according to the following formula to determine the confidence level of the image pair:

[0048] ;

[0049] Wherein, is the confidence level of the image pair, is the adjustment coefficient, is the first confidence level of the image pair. The adjustment coefficient may be determined based on the three-axis acceleration of the driver's seat collected by the three-axis acceleration sensor. The greater the three-axis acceleration of the driver's seat, the greater the vibration intensity of the driver's seat, and the smaller the adjustment coefficient.

[0050] Step 280: When the confidence level of the image pair is less than the confidence threshold, the processor controls the binocular imaging component to repeatedly execute the operation of obtaining the image pair of the driver again, determines the confidence level of the image pair of the driver obtained again, until the confidence level of the image pair obtained again is greater than or equal to the confidence threshold.

[0051] Specifically, when the confidence level of the first acquired image pair is less than the confidence threshold, the binocular imaging component acquires the image pair for the second time. When the confidence level of the second acquired image pair is greater than or equal to the confidence threshold, the processor can determine the angle adjustment information of the liquid crystal display screen based on the second acquired image pair. When the confidence level of the second acquired image pair is less than the confidence threshold, the binocular imaging component acquires the image pair for the third time. When the confidence level of the third acquired image pair is greater than or equal to the confidence threshold, the processor can determine the angle adjustment information of the liquid crystal display screen based on the third acquired image pair. When the confidence level of the third acquired image pair is less than the confidence threshold, the binocular imaging component acquires the image pair for the fourth time, and so on in a loop.

[0052] The parameter acquisition component can be used to acquire the pose of the driver's seat. The pose of the driver's seat can include the angle of the backrest of the driver's seat and the position of the driver's seat. The parameter acquisition component can include multiple pose sensors for the driver's seat, such as angle sensors, displacement sensors, etc.

[0053] When the confidence level of the image pair is greater than the confidence threshold, the processor can determine the angle adjustment information of the liquid crystal display screen based on the spatial position of the driver's eyes, the pose of the driver's seat, and the spatial position of the display screen determined by the image pair. For example, the processor can establish a multiple non-linear regression model. Among them, the independent variables of the multiple non-linear regression model include the spatial position of the driver's eyes, the pose of the driver's seat, and the spatial position of the display screen, and the dependent variable of the multiple non-linear regression model includes the optimal display angle of the liquid crystal display screen. The parameters of the multiple non-linear regression model are determined through multiple samples, and the optimal display angle of the liquid crystal display screen is determined based on the spatial position of the driver's eyes, the pose of the driver's seat, and the spatial position of the display screen through the multiple non-linear regression model after determining the parameters. Among them, the samples can include the spatial position of the driver's eyes of the sample driver, the pose of the sample driver's seat, the spatial position of the sample display screen, and the angle adjustment information of the sample liquid crystal display screen.

[0054] The angle adjustment component can be used to support the liquid crystal display screen, that is, the liquid crystal display screen can be set on the angle adjustment component.

[0055] The angle adjustment component can also be used to adjust the display angle of the liquid crystal display screen based on the angle adjustment information of the liquid crystal display screen.

[0056] In some embodiments, when the pressure on the driver's seat obtained by the seat pressure sensing device is small, the processor determines that the driver has left the driver's seat. If the driver is detected again on the driver's seat within a preset time period (e.g., 10 minutes), that is, the driver returns to the driver's seat, it is determined whether to turn on the light sensing device based on the pressure sensed by the seat pressure sensing device, and the display angle of the liquid crystal display screen is adjusted for the second time. Specifically, when the pressure difference between the pressure on the driver's seat obtained by the seat pressure sensing device before the driver leaves the driver's seat and the pressure on the driver's seat obtained by the seat pressure sensing device when the driver is detected again on the driver's seat is less than or equal to the preset pressure difference threshold, the processor may determine that the driver has not been replaced, and the display angle of the liquid crystal display screen may not be adjusted for the second time. When the pressure difference between the pressure on the driver's seat obtained by the seat pressure sensing device before the driver leaves the driver's seat and the pressure on the driver's seat obtained by the seat pressure sensing device when the driver is detected again on the driver's seat is greater than the preset pressure difference threshold, the automotive liquid crystal display system may execute steps 210 to 280 again to obtain a pair of images of the driver, and then based on the pair of images of the driver, determine the eye spatial position of the driver, and is also used to determine the angle adjustment information of the liquid crystal display screen based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen, and adjust the display angle of the liquid crystal display screen for the second time.

[0057] In some embodiments, if the driver is detected again on the driver's seat outside the preset time period, the light sensing device is turned on, and the display angle of the liquid crystal display screen is adjusted for the second time. Specifically, if the driver is detected again on the driver's seat outside the preset time period, the automotive liquid crystal display system may execute steps 210 to 280 again to obtain a pair of images of the driver, and then based on the pair of images of the driver, determine the eye spatial position of the driver, and is also used to determine the angle adjustment information of the liquid crystal display screen based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen, and adjust the display angle of the liquid crystal display screen for the second time.

[0058] In some embodiments, the automotive liquid crystal display system may further include a left image acquisition device and a right image acquisition device. Among them, the left image acquisition device is used to acquire an image of the left outer side of the vehicle, and the right image acquisition device is used to acquire an image of the right outer side of the vehicle. The liquid crystal display screen is also used to display the image of the left outer side of the vehicle acquired by the left image acquisition device and / or the image of the right outer side of the vehicle acquired by the right image acquisition device.

[0059] In some embodiments, the processor can also be used to obtain the steering information of the vehicle and control the liquid crystal display screen to display the image of the left outer side of the vehicle collected by the left image acquisition device and / or the image of the right outer side of the vehicle collected by the right image acquisition device based on the steering information of the vehicle. For example, when the steering information of the vehicle is a right turn, the processor can control the liquid crystal display screen to display the image of the right outer side of the vehicle collected by the right image acquisition device, providing reference information for the driver to turn right. Another example is that when the steering information of the vehicle is a left turn, the processor can control the liquid crystal display screen to display the image of the left outer side of the vehicle collected by the right image acquisition device, providing reference information for the driver to turn left.

[0060] In some embodiments, the processor is also used to adjust the screen resolution of the liquid crystal display screen based on the eye's spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen. Specifically, when the processor determines that the distance between the driver's eyes and the liquid crystal display screen is greater based on the eye's spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen, the screen resolution is lower.

[0061] In some embodiments, the processor is also used to adjust the brightness of the liquid crystal display screen according to the light intensity in the cab.

[0062] In some embodiments, the processor can be a single server or a server group. The central control component can be local or remote. The processor can include a central processing unit (CPU), an application-specific integrated circuit (ASIC), an application-specific instruction processor (ASIP), a graphics processing unit (GPU), a physical processing unit (PPU), a digital signal processor (DSP), a field-programmable gate array (FPGA), a programmable logic circuit (PLD), a controller, a microcontroller unit, a reduced instruction set computer (RISC), a microprocessor, etc., or any combination of the above.

[0063] The automotive liquid crystal display system may further include a storage device, which can be used to store data, instructions, and / or any other information. In some embodiments, the storage device may store data and / or information obtained from at least one component of the automotive liquid crystal display system. For example, the storage device may store the horizontal distance between the driver obtained by the horizontal ranging component along the horizontal direction and the horizontal distance between the driver obtained by the horizontal ranging component along the horizontal direction. The storage device may store the calibrated spatial position of the driver determined by the processor. For another example, the storage device may store a confidence threshold. In some embodiments, the storage device may include a mass storage device, a removable storage device, a volatile read-write memory, a read-only memory (ROM), etc., or any combination thereof. Exemplary mass storage devices may include magnetic disks, optical disks, solid state disks, etc. Exemplary removable storage devices may include flash drives, floppy disks, optical disks, memory cards, compact disks, magnetic tapes, etc. Exemplary volatile read-write memories may include random access memories (RAM). Exemplary RAM may include dynamic random access memory (DRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), static random access memory (SRAM), thyristor random access memory (T-RAM), and zero-capacitor random access memory (Z-RAM), etc. Exemplary ROM may include mask ROM (MROM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), compact disk read-only memory (CD-ROM), and digital versatile disk read-only memory, etc. In some embodiments, the storage device may be executed on a cloud platform. By way of example only, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-layer cloud, etc., or any combination thereof.

[0064] In some embodiments, an automotive liquid crystal display system may have at least the following beneficial effects:

[0065] 1. An automotive liquid crystal display system obtains an image pair of the driver through a binocular imaging component and obtains the pose of the driver's seat through a parameter acquisition component. The processor determines the eye spatial position of the driver based on the image pair of the driver, and is further configured to determine the angle adjustment information of the liquid crystal display screen based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen. The angle adjustment component adjusts the display angle of the liquid crystal display screen based on the angle adjustment information of the liquid crystal display screen, and has the effect of being able to adjust the display angle of the liquid crystal display screen based on the personal characteristics of the driver, making it more convenient for the driver to view the liquid crystal display screen;

[0066] 2. When the light intensity in the cab detected by the processor is greater than the preset light intensity threshold, the binocular imaging component is turned on. When the light intensity in the cab is less than or equal to the preset light intensity threshold, the display angle of the liquid crystal display screen is repeatedly adjusted to the preset display angle by the angle adjustment component, and the light sensing device is controlled to collect the light intensity in the cab at the preset collection frequency until it is determined that the light intensity in the cab is greater than the preset light intensity threshold, and then the binocular imaging component is turned on, so as to avoid obtaining invalid images;

[0067] 3. The processor determines the confidence level of the image pair based on the vertical distance and horizontal distance obtained by the ranging component and the three-axis acceleration of the driver's seat collected by the three-axis acceleration sensor. When the confidence level of the image pair is less than the confidence level threshold, the image pair of the driver is repeatedly obtained, and the confidence level of the repeatedly obtained image pair of the driver is determined until the confidence level of the repeatedly obtained image pair is greater than or equal to the confidence level threshold, so as to avoid determining the angle adjustment information of the liquid crystal display screen through invalid image pairs and improve the accuracy of adjusting the display angle of the liquid crystal display screen;

[0068] 4. When it is detected that the driver leaves the driver's seat, if a driver is detected on the driver's seat again within the preset time period, it is determined whether to turn on the light sensing device based on the pressure sensed by the seat pressure sensing device, and the display angle of the liquid crystal display screen is adjusted for the second time, which can reduce the repeated adjustment of the display angle of the liquid crystal display screen when the same driver drives the vehicle;

[0069] 5. Based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen, the screen resolution of the liquid crystal display screen is adjusted, which can facilitate the driver to view the liquid crystal display screen.

[0070] It should be noted that the application scenarios are provided only for the purpose of illustration and are not intended to limit the scope of this specification. For those of ordinary skill in the art, various modifications or changes can be made according to the description of this specification. For example, the application scenario can also include a database. However, these changes and modifications will not deviate from the scope of this specification.

[0071] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are proposed in this specification, so such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this specification.

[0072] In the meantime, this specification uses specific terms to describe the embodiments of this specification. For example, "an embodiment", "one embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined.

[0073] In addition, unless clearly stated in the claims, the order of the processing elements and sequences, the use of numerical letters, or the use of other names in this specification are not used to limit the order of the processes and methods in this specification. Although some currently considered useful embodiments of the invention are discussed through various examples in the above disclosure, it should be understood that such details only serve the purpose of illustration. The appended claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that conform to the essence and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only through software solutions, such as installing the described system on existing servers or mobile devices.

[0074] Similarly, it should be noted that, in order to simplify the expression of the disclosure in this specification and thus help the understanding of one or more embodiments of the invention, in the previous description of the embodiments of this specification, sometimes multiple features are grouped into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the subject matter of this specification are more than those mentioned in the claims. In fact, the features of the embodiments are fewer than all the features of the individual embodiments disclosed above.

[0075] For each patent, patent application, patent application publication, and other materials cited in this specification, such as articles, books, specifications, publications, documents, etc., their entire contents are hereby incorporated into this specification by reference. This excludes the application history documents that are inconsistent with or conflict with the content of this specification, and also excludes the documents (currently or subsequently appended to this specification) that limit the broadest scope of the claims of this specification. It should be noted that if there are inconsistencies or conflicts between the descriptions, definitions, and / or uses of terms in the supplementary materials of this specification and the content described in this specification, the descriptions, definitions, and / or uses of terms in this specification shall prevail.

[0076] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be regarded as consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly presented and described in this specification.

Claims

1. An automotive liquid crystal display system, comprising a liquid crystal display screen, characterized in that, Further comprising; A binocular imaging component for acquiring an image pair of the driver; A parameter acquisition component for acquiring the pose of the driver's seat; A processor for determining the eye spatial position of the driver based on the image pair of the driver, and also for determining the angle adjustment information of the liquid crystal display based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen; An angle adjustment component for supporting the liquid crystal display and also for adjusting the display angle of the liquid crystal display based on the angle adjustment information of the liquid crystal display; The system further comprises a ranging component, the ranging component includes a vertical ranging component and a horizontal ranging component, the vertical ranging component is used to acquire the vertical distance from the driver in the vertical direction, and the horizontal ranging component is used to acquire the horizontal distance from the driver in the horizontal direction: The system further comprises a triaxial acceleration sensor arranged on the driver's seat, and the triaxial acceleration sensor is used to collect the triaxial acceleration of the driver's seat when the binocular imaging component acquires the image pair of the driver; The processor is further used to determine the confidence level of the image pair based on the vertical distance and the horizontal distance acquired by the ranging component and the triaxial acceleration of the driver's seat collected by the triaxial acceleration sensor; The processor is further used to, when the confidence level of the image pair is less than the confidence level threshold, repeatedly execute acquiring the image pair of the driver again, determining the confidence level of the image pair of the driver acquired again until the confidence level of the image pair acquired again is greater than or equal to the confidence level threshold.

2. The automotive liquid crystal display system according to claim 1, characterized in that, The binocular imaging component includes a left camera and a right camera, the left camera is used to acquire the main image of the driver, the right camera is used to acquire the auxiliary image of the driver, and the image pair includes the main image of the driver and the auxiliary image of the driver; The processor determines the eye spatial position of the driver based on the image pair of the driver, including: Determining the matching pixel points between the main image of the driver and the auxiliary image of the driver; Obtaining the disparity value according to the matching pixel points; Calculating and obtaining the eye spatial position of the driver according to the disparity value.

3. The automotive liquid crystal display system according to claim 1 or 2, characterized in that, The processor determines the angle adjustment information of the liquid crystal display based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen, including: Establishing a multiple non - linear regression model, wherein the independent variables of the multiple non - linear regression model include the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen, and the dependent variable of the multiple non - linear regression model includes the optimal display angle of the liquid crystal display; Determining the parameters of the multiple non - linear regression model through multiple samples; Determining the optimal display angle of the liquid crystal display based on the eye spatial position of the driver, the pose of the driver's seat, and the spatial position of the display screen through the multiple non - linear regression model after determining the parameters; Determining the angle adjustment information of the liquid crystal display based on the optimal display angle of the liquid crystal display.

4. The automotive liquid crystal display system according to claim 1 or 2, characterized in that, It further includes an induction start component, and the induction start component includes a seat pressure sensing device and a light sensing device; The processor is further configured to turn on the light sensing device when the seat pressure sensing device detects the driver on the driver's seat, and the light sensing device is used to obtain the light intensity in the cab; The processor is further configured to turn on the binocular imaging component when the light intensity in the cab is greater than a preset light intensity threshold; When the light intensity in the cab is less than or equal to the preset light intensity threshold, the processor is further configured to repeatedly execute adjusting the display angle of the liquid crystal display screen to a preset display angle through the angle adjustment component, and controlling the light sensing device to collect the light intensity in the cab at a preset acquisition frequency until it is determined that the light intensity in the cab is greater than the preset light intensity threshold, and then turn on the binocular imaging component.

5. The automotive liquid crystal display system according to claim 4, characterized in that, The processor is further configured to: When it is detected that the driver leaves the driver's seat, if it is detected again that there is a driver on the driver's seat within a preset time period, determine whether to turn on the light sensing device based on the pressure sensed by the seat pressure sensing device, and perform a secondary adjustment of the display angle of the liquid crystal display screen; If it is detected again that there is a driver on the driver's seat outside the preset time period, turn on the light sensing device and perform a secondary adjustment of the display angle of the liquid crystal display screen.

6. The automotive liquid crystal display system according to claim 1 or 2, characterized in that, It further includes a left image acquisition device and a right image acquisition device. Among them, the left image acquisition device is used to acquire images of the left outer side of the vehicle, and the right image acquisition device is used to acquire images of the right outer side of the vehicle; The liquid crystal display screen is further used to display the images of the left outer side of the vehicle acquired by the left image acquisition device and / or the images of the right outer side of the vehicle acquired by the right image acquisition device.

7. The automotive liquid crystal display system according to claim 6, wherein The processor is further configured to: Obtain the steering information of the vehicle, and control the liquid crystal display screen to display the images of the left outer side of the vehicle acquired by the left image acquisition device and / or the images of the right outer side of the vehicle acquired by the right image acquisition device based on the steering information of the vehicle.

8. The automotive liquid crystal display system according to claim 1 or 2, characterized in that The processor is further configured to adjust the screen resolution of the liquid crystal display screen based on the eye space position of the driver, the pose of the driver's seat, and the space position of the display screen.

9. The automotive liquid crystal display system according to claim 1 or 2, characterized in that The processor is further configured to adjust the brightness of the liquid crystal display screen according to the light intensity in the cab.

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