CN116052617A - Screen brightness control system, method, device, equipment and storage medium - Google Patents
Screen brightness control system, method, device, equipment and storage medium Download PDFInfo
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Abstract
The present disclosure provides a screen brightness control system, method, apparatus, device and storage medium, the system comprising: the first sub-operation system is used for starting a screen brightness control task, acquiring a target screen brightness value based on the screen brightness control task, and transmitting the target screen brightness value to the second sub-operation system through the inter-core communication unit; and the second sub-operation system is used for receiving the brightness value of the target screen through the inter-core communication unit, adjusting the brightness duty ratio of the target screen corresponding to the pulse modulation signal based on the brightness value of the target screen, and adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty ratio. The method solves the problem that other operating systems running in the multi-core heterogeneous chip cannot control the display screen because the control right of the display screen is put down to one operating system of the multi-core heterogeneous chip in the prior art.
Description
Technical Field
The disclosure relates to the technical field of chips, and in particular relates to a screen brightness control system, a method, a device, equipment and a storage medium.
Background
In a vehicle-mounted smart cockpit scenario, multiple operating systems may be running in the vehicle, such as FreeRtos (embedded real-time operating system), android operating system, and Linux operating system. Because a plurality of operating systems running in the vehicle-mounted intelligent cabin cannot control the brightness of the display screen at the same time, the brightness of the display screen can be controlled only through a single operating system, and therefore, different operating systems have the authority of controlling the brightness of the display screen in the vehicle.
However, for each operating system deployed on each of the different hardware domains in the multi-core heterogeneous chip where physical isolation exists, control of the display screen can generally only be put down into one operating system of the multi-core heterogeneous chip, which results in that other operating systems running in the multi-core heterogeneous chip cannot control the display screen. For example, the FreeRtos operating system, the Android operating system, and the Linux operating system run on different hardware domains of the same multi-core heterogeneous chip, if the control right of the display screen is downloaded to the FreeRtos operating system, the Android operating system and the Linux operating system cannot control the brightness of the display screen, if the control right of the display screen is downloaded to the Android operating system, the FreeRtos operating system and the Linux operating system cannot control the brightness of the display screen, and if the control right of the display screen is downloaded to the Linux operating system, the FreeRtos operating system and the Linux operating system cannot control the brightness of the display screen.
Therefore, how to control the display screen by different operating systems on the multi-core heterogeneous chip becomes a problem to be solved.
Disclosure of Invention
The present disclosure provides a screen brightness control system, method, apparatus, device, and storage medium, to at least solve the above technical problems in the prior art.
According to a first aspect of the present disclosure, there is provided a screen brightness control system, the system comprising:
the first sub-operation system is used for starting a screen brightness control task, acquiring a target screen brightness value based on the screen brightness control task, and transmitting the target screen brightness value to the second sub-operation system through an inter-core communication unit of the multi-core heterogeneous chip;
the second sub-operation system is used for receiving the brightness value of the target screen, adjusting the brightness duty ratio of the target screen corresponding to the pulse modulation signal according to the brightness value of the target screen, and adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on the multi-core heterogeneous chip, and the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
In an embodiment, the second sub-operating system is specifically configured to adjust, through a data transmission interface between the multi-core heterogeneous chip and the target screen, a duty cycle corresponding to a current luminance value of the target screen to the luminance duty cycle, so that the luminance value of the target screen is consistent with a luminance value corresponding to the luminance duty cycle.
In an embodiment, the first sub-operating system is specifically configured to obtain a brightness of light collected by the photosensitive sensor corresponding to the target screen, and determine a target screen brightness value based on the brightness of light.
In an embodiment, the first sub-operating system is specifically configured to obtain a brightness value currently set by the user as the target screen brightness value.
In an embodiment, the screen brightness control system includes a plurality of first sub-operating systems, the heterogeneous multi-core chip includes a plurality of processor cores with different architectures, each processor core and a hardware resource connected to the processor core form a hardware domain, physical isolation exists between each hardware domain in the heterogeneous multi-core chip, a second sub-operating system is disposed on one hardware domain of the heterogeneous multi-core chip, and a first sub-operating system is disposed on each other hardware domain.
According to a second aspect of the present disclosure, there is provided a screen brightness control method applied to a second sub-operating system in a screen brightness control system, the method comprising:
receiving a target screen brightness value sent by a first sub-operation system through an inter-core communication unit, wherein the target screen brightness value is acquired by the first sub-operation system based on a screen brightness control task;
adjusting the brightness duty ratio of a target screen corresponding to the pulse modulation signal according to the brightness value of the target screen;
adjusting the current brightness value of the target screen to be a brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on a multi-core heterogeneous chip, wherein the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
In an embodiment, the adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty cycle includes:
and adjusting the duty ratio corresponding to the current brightness value of the target screen to be the brightness duty ratio through a data transmission interface between the multi-core heterogeneous chip and the target screen so as to enable the brightness value of the target screen to be consistent with the brightness value corresponding to the brightness duty ratio.
According to a third aspect of the present disclosure, there is provided a screen brightness control method applied to a first sub-operating system in a screen brightness control system, the method comprising:
starting a screen brightness control task, and acquiring a target screen brightness value based on the screen brightness control task;
sending the target screen brightness value to a second sub-operation system through an inter-core communication unit of a multi-core heterogeneous chip, so that the second sub-operation system adjusts the brightness duty ratio of a target screen corresponding to a pulse modulation signal based on the target screen brightness value after receiving the target screen brightness value, and adjusts the current brightness value of the target screen to be the brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on the multi-core heterogeneous chip, and the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
In an embodiment, the obtaining the target screen brightness value based on the screen brightness control task includes:
acquiring the brightness of light acquired by a photosensitive sensor corresponding to the target screen;
And determining a target screen brightness value based on the light brightness.
In an embodiment, the obtaining the target screen brightness value based on the screen brightness control task includes:
and acquiring the brightness value currently set by the user as a target screen brightness value.
According to a fourth aspect of the present disclosure, there is provided a screen brightness control apparatus applied to a second sub-operating system in a screen brightness control system, the apparatus comprising:
the device comprises a target brightness receiving module, a first sub-operation system and a second sub-operation system, wherein the target brightness receiving module is used for receiving a target screen brightness value sent by the first sub-operation system through an inter-core communication unit, and the target screen brightness value is acquired by the first sub-operation system based on a screen brightness control task;
the duty ratio adjusting module is used for adjusting the brightness duty ratio of the target screen corresponding to the pulse modulation signal according to the brightness value of the target screen;
the brightness value adjusting module is used for adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on a multi-core heterogeneous chip, wherein the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
According to a fifth aspect of the present disclosure, there is provided a screen brightness control apparatus applied to a first sub-operating system in a screen brightness control system, the apparatus comprising:
the task starting module is used for starting a screen brightness control task and acquiring a target screen brightness value based on the screen brightness control task;
the brightness value sending module is used for sending the target screen brightness value to a second sub-operation system through an inter-core communication unit of the multi-core heterogeneous chip, so that the second sub-operation system adjusts the brightness duty ratio of a target screen corresponding to a pulse modulation signal based on the target screen brightness value after receiving the target screen brightness value, and adjusts the current brightness value of the target screen to be the brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on the multi-core heterogeneous chip, and the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
According to a sixth aspect of the present disclosure, there is provided an electronic device comprising:
At least one processor; and
a memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the methods described in the present disclosure.
According to a seventh aspect of the present disclosure, there is provided a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of the present disclosure.
The screen brightness control system, the method, the device, the equipment and the storage medium are characterized in that a first sub-operation system is used for starting a screen brightness control task, acquiring a target screen brightness value based on the screen brightness control task and transmitting the target screen brightness value to a second sub-operation system through an inter-core communication unit; and the second sub-operation system is used for receiving the brightness value of the target screen through the inter-core communication unit, adjusting the brightness duty ratio of the target screen corresponding to the pulse modulation signal according to the brightness value of the target screen, and adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty ratio. The system can control the brightness of the screen for different operating systems on the multi-core heterogeneous chip, and solves the problem that other operating systems running in the multi-core heterogeneous chip cannot control the display screen because the control right of the display screen is put down to one operating system of the multi-core heterogeneous chip in the prior art.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.
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The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings, in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Fig. 1 is a schematic diagram illustrating a structure of a screen brightness control system according to an embodiment of the present disclosure;
FIG. 2 shows a schematic diagram of a screen brightness control system provided by an embodiment of the present disclosure;
FIG. 3 shows a flowchart of a screen brightness control method provided by an embodiment of the present disclosure;
fig. 4 shows another flowchart of a screen brightness control method provided by an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating a structure of a screen brightness control apparatus applied to a second sub-operating system in a screen brightness control system according to an embodiment of the present disclosure;
Fig. 6 is a schematic diagram illustrating a structure of a screen brightness control apparatus applied to a first sub-operating system in a screen brightness control system according to an embodiment of the present disclosure;
fig. 7 shows a schematic diagram of a composition structure of an electronic device according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, features and advantages of the present disclosure more comprehensible, the technical solutions in the embodiments of the present disclosure will be clearly described in conjunction with the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person skilled in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
Since at present, for each operating system deployed in each different hardware domain with physical isolation in the multi-core heterogeneous chip, the control right of the display screen can only be downloaded to one operating system of the multi-core heterogeneous chip, which results in that other operating systems running in the multi-core heterogeneous chip cannot control the display screen. Therefore, in order to realize control of different operating systems on a multi-core heterogeneous chip on a display screen, the present disclosure provides a screen brightness control system, a method, a device, equipment and a storage medium. The screen brightness control system provided by the disclosure can be applied to a multi-core heterogeneous chip, the screen brightness control system can comprise a plurality of first sub-operating systems and a second sub-operating system, the multi-core heterogeneous chip comprises at least two processor cores with different architectures, each processor core corresponds to one sub-operating system, each processor core and hardware resources connected with the processor core form a hardware domain, physical isolation exists among all hardware domains in the multi-core heterogeneous chip, the second sub-operating system is deployed on one hardware domain of the multi-core heterogeneous chip, and the first sub-operating system is deployed on other hardware domains. The processor core may specifically be a CPU Cluster (central processing unit Cluster), and the hardware resources may include an interrupt controller, a clock controller, a memory space, and the like.
The screen brightness control system, the method, the device, the equipment and the storage medium provided by the disclosure can be particularly applied to the technical field of vehicle-mounted intelligent cabins.
The technical solutions of the embodiments of the present disclosure will be described below with reference to the drawings in the embodiments of the present disclosure.
Fig. 1 is a schematic diagram illustrating a structure of a screen brightness control system according to an embodiment of the present disclosure. As shown in fig. 1, the system includes:
the first sub operating system 101 is configured to start a screen brightness control task, obtain a target screen brightness value based on the screen brightness control task, and send the target screen brightness value to the second sub operating system 102 through an inter-core communication unit of a multi-core heterogeneous chip;
the second sub-operating system 102 is configured to receive the target screen brightness value, adjust a brightness duty ratio of a target screen corresponding to the pulse modulation signal according to the target screen brightness value, and adjust a current brightness value of the target screen to a brightness value corresponding to the brightness duty ratio.
The first sub operating system 101 and the second sub operating system 102 are configured as operating systems deployed on the multi-core heterogeneous chip, where the multi-core heterogeneous chip includes at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
The screen brightness control system is adopted, and the first sub-operating system is used for starting a screen brightness control task, acquiring a target screen brightness value based on the screen brightness control task and sending the target screen brightness value to the second sub-operating system through the inter-core communication unit; and the second sub-operation system is used for receiving the brightness value of the target screen through the inter-core communication unit, adjusting the brightness duty ratio of the target screen corresponding to the pulse modulation signal based on the brightness value of the target screen, and adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty ratio. The system can control the brightness of the screen for different operating systems on the multi-core heterogeneous chip, and solves the problem that other operating systems running in the multi-core heterogeneous chip cannot control the display screen because the control right of the display screen is put down to one operating system of the multi-core heterogeneous chip in the prior art.
In the present disclosure, the sub operating systems may be a FreeRtos operating system, an Android operating system, and a Linux operating system, and the second sub operating system is an operating system that controls screen brightness. If the FreeRtos operating system is an operating system for controlling the screen brightness, the FreeRtos operating system can be used as a second sub-operating system on the multi-core heterogeneous chip, and the Android operating system and/or the Linux operating system are used as first sub-operating systems on the multi-core heterogeneous chip; if the Android operating system is an operating system for controlling the screen brightness, the Android operating system can be used as a second sub-operating system on the multi-core heterogeneous chip, and the FreeRtos operating system and/or the Linux operating system are used as first sub-operating systems on the multi-core heterogeneous chip; if the Linux operating system is an operating system for controlling the brightness of the screen, the Linux operating system can be used as a second sub operating system on the multi-core heterogeneous chip, and the FreeRtos operating system and/or the Android operating system are used as first sub operating systems on the multi-core heterogeneous chip.
The screen brightness control system, the method, the device, the equipment and the storage medium provided by the disclosure can be particularly applied to the technical field of vehicle-mounted intelligent cabins. If multiple display screens are configured in the vehicle-mounted intelligent cabin, each display screen can be controlled by different operating systems, and the brightness of all screens can be controlled by only one operating system by adopting the screen brightness control system, the method, the device, the equipment and the storage medium.
In an embodiment, the second sub-operating system is specifically configured to adjust, through a data transmission interface between the multi-core heterogeneous chip and the target screen, a duty cycle corresponding to a current luminance value of the target screen to the luminance duty cycle, so that the luminance value of the target screen is consistent with a luminance value corresponding to the luminance duty cycle.
In the present disclosure, a serdes interface line may be used as a data transmission interface between the multi-core heterogeneous chip and the target screen. The second sub operating system may connect to the target screen using a serdes interface line, both ends of which pass through a serdes serializer and a serdes deserializer control signal. In the disclosure, a GMII (Gigabit MII) interface may be further used as a data transmission interface between the multi-core heterogeneous chip and the target screen, where the second sub-operating system and the target screen are connected through a GMII interface line, and data interaction is performed by using the GMII interface line.
In this disclosure, duty cycle refers to the proportion of the power-on time relative to the total time in one pulse cycle. Each duty cycle may correspond to a screen brightness value, with a larger duty cycle corresponding to a larger brightness value.
In an embodiment, the first sub-operating system is specifically configured to obtain a brightness of light collected by the photosensitive sensor corresponding to the target screen, and determine a target screen brightness value based on the brightness of light.
In the disclosure, the target screen may be one screen in a vehicle-mounted display screen, the vehicle-mounted display screen may be configured with a photosensor, the photosensor may collect light brightness in the vehicle every other preset time period, the first sub-operating system may acquire the light brightness collected by the photosensor in real time, and when the acquired light brightness is greater than a preset brightness threshold, the first sub-operating system may start a screen brightness control task, convert the light brightness into a screen brightness value, and send the screen brightness value obtained after conversion as the target screen brightness value to the second sub-operating system. The preset brightness threshold may be set according to an actual application scenario, which is not specifically limited herein. The preset time period may be set to 10 minutes or 15 minutes or the like.
In another embodiment, the first sub-operating system is specifically configured to obtain a brightness value currently set by the user as the target screen brightness value.
In the disclosure, a user may be a user or an operator of a target screen, the user may set different screen brightness according to needs, and when the user resets the screen brightness, the first sub-operating system may start a screen brightness control task and send a brightness value currently set by the user as a target screen brightness value to the second sub-operating system.
Fig. 2 shows a schematic diagram of a screen brightness control system according to an embodiment of the present disclosure. As shown in fig. 2, the FreeRtos operating system, the Android operating system, and the Linux operating system are respectively sub operating systems deployed on different hardware domains of the multi-core heterogeneous chip 201, and information interaction can be performed between different hardware domains in the multi-core heterogeneous chip 201 through inter-core communication. In fig. 2, the FreeRtos operating system is an operating system for controlling the brightness of the screen, and then the FreeRtos operating system is a second sub-operating system on the multi-core heterogeneous chip 201, and the Android operating system and the Linux operating system are both first sub-operating systems on the multi-core heterogeneous chip 201.
As shown in fig. 2, the screen brightness control system may be used in a vehicle-mounted intelligent cabin, and specifically, a serdes (serial deserializer) interface line may be used to connect to a display screen, where two ends of the serdes interface line control signals through a serdes deserializer and a serdes deserializer. Specifically, when the user resets the screen brightness value or the brightness of the light collected by the photosensitive sensor corresponding to the display screen reaches the preset brightness threshold, the android or Linux operating system can start a screen brightness control task, and the screen brightness control task comprises a brightness value setting interface. The brightness value setting interface can write the brightness value of the screen currently set by the user or the brightness of the light rays collected by the photosensitive sensor into a brightness file node of an android or Linux operating system. When the backlight control drive of the android or Linux operating system detects that a new value is written in a brightness file node, the written screen brightness value currently set by a user or the light brightness collected by the photosensitive sensor can be written in an inter-core communication unit RPMSG, and the screen brightness value currently set by the user or the light brightness collected by the photosensitive sensor is used as a target screen brightness value to be sent to the FreeRtos operating system through the inter-core communication unit of the multi-core heterogeneous chip. After the RPMSG in the FreeRtos operating system receives the target screen brightness value, the brightness duty cycle corresponding to the target screen brightness value can be determined by adjusting a PWM (Pulse Width Modulation, pulse modulation) signal, and then the brightness duty cycle can be sent to a Serdes serializer, and the Serdes serializer transfers the brightness duty cycle to the Serdes deserializer. The Serdes deserializer can adjust the brightness value of the display screen to the brightness value corresponding to the brightness duty ratio through the backlight IO of the display screen, so that the brightness value of the target screen is consistent with the brightness value corresponding to the brightness duty ratio. In fig. 2, "941 IO" refers to an input/output interface of the Serdes deserializer, in fig. 2, "948 IO" refers to an input/output interface of the Serdes deserializer, and "PWM output" refers to outputting a luminance duty ratio corresponding to the target screen luminance value to the Serdes deserializer through a PWM signal.
By adopting the screen brightness control system disclosed by the invention, the screen brightness control system can be realized for different operating systems on the multi-core heterogeneous chip, and the problem that other operating systems running in the multi-core heterogeneous chip cannot control the display screen because the control right of the display screen is put down to one operating system of the multi-core heterogeneous chip in the prior art is solved.
Fig. 3 shows a flowchart of a screen brightness control method provided by an embodiment of the present disclosure. As shown in fig. 3, the method is applied to a second sub-operating system in a screen brightness control system, where the first sub-operating system and the second sub-operating system are operating systems deployed on a multi-core heterogeneous chip, where the multi-core heterogeneous chip includes at least two processor cores with different architectures, and each processor core corresponds to one sub-operating system, and the method includes:
s301, receiving a target screen brightness value sent by a first sub-operation system through an inter-core communication unit.
The target screen brightness value is obtained by the first sub-operation system based on a screen brightness control task.
In the disclosure, the target screen may be one of vehicle-mounted display screens, the vehicle-mounted display screen may be configured with a photosensor, the photosensor may collect light brightness in the vehicle every other preset time period, the first sub-operating system may acquire the light brightness collected by the photosensor in real time, and when the acquired light brightness is greater than a preset brightness threshold, the first sub-operating system may start a screen brightness control task and convert the light brightness into a screen brightness value, and the screen brightness value obtained after conversion is used as the target screen brightness value to be sent to the second sub-operating system through the inter-core communication unit of the multi-core heterogeneous chip. Or, the user may set different screen brightness according to the need, and when the user resets the screen brightness, the first sub-operating system may start the screen brightness control task and send the brightness value currently set by the user as the target screen brightness value to the second sub-operating system.
S302, adjusting the brightness duty ratio of the target screen corresponding to the pulse modulation signal according to the brightness value of the target screen.
In the present disclosure, each duty cycle may correspond to one screen brightness value, and the larger the duty cycle is, the larger the corresponding brightness value is.
And S303, adjusting the current brightness value of the target screen to be the brightness value corresponding to the brightness duty ratio.
Specifically, the duty ratio corresponding to the current brightness value of the target screen can be adjusted to be the brightness duty ratio through the data transmission interface between the multi-core heterogeneous chip and the target screen, so that the brightness value of the target screen is consistent with the brightness value corresponding to the brightness duty ratio.
By adopting the screen brightness control method, the system for controlling the screen brightness can be realized for different operating systems on the multi-core heterogeneous chip, and the problem that other operating systems running in the multi-core heterogeneous chip cannot control the display screen because the control right of the display screen is put down to one operating system of the multi-core heterogeneous chip in the prior art is solved.
Fig. 4 shows another flowchart of a screen brightness control method provided by an embodiment of the present disclosure. As shown in fig. 4, the method is applied to a first sub-operating system in a screen brightness control system, where the first sub-operating system and the second sub-operating system are operating systems deployed on the multi-core heterogeneous chip, and the multi-core heterogeneous chip includes at least two processor cores with different architectures, each processor core corresponds to one sub-operating system, and the method includes:
S401, starting a screen brightness control task, and acquiring a target screen brightness value based on the screen brightness control task.
In one embodiment, the step of obtaining the target screen brightness value based on the screen brightness control task may include the following steps A1-A2:
and A1, acquiring the brightness of light acquired by the photosensitive sensor corresponding to the target screen.
In the disclosure, the target screen may be one of vehicle-mounted display screens, the vehicle-mounted display screen may be configured with a photosensor, the photosensor may collect light brightness in the vehicle every preset time period, the first sub-operating system may obtain the light brightness collected by the photosensor in real time, and when the obtained light brightness is greater than a preset brightness threshold, the first sub-operating system may start a screen brightness control task.
And step A2, determining a target screen brightness value based on the light brightness.
After the screen brightness control task is started, the first sub-operation system can convert the light brightness into a screen brightness value, then the screen brightness value obtained after conversion is used as a target screen brightness value, and the target screen brightness value is sent to the second sub-operation system through the inter-core communication unit of the multi-core heterogeneous chip.
In another embodiment, the step of obtaining the target screen brightness value based on the screen brightness control task may include the following step B1:
and step B1, acquiring a brightness value currently set by a user as a target screen brightness value.
In the disclosure, a user may set different screen brightness according to needs, and when the user resets the screen brightness, the first sub-operating system may start a screen brightness control task and send a brightness value currently set by the user as a target screen brightness value to the second sub-operating system.
S402, sending the target screen brightness value to a second sub-operation system through an inter-core communication unit of the multi-core heterogeneous chip, so that the second sub-operation system adjusts the brightness duty ratio of a target screen corresponding to a pulse modulation signal based on the target screen brightness value after receiving the target screen brightness value, and adjusts the current brightness value of the target screen to be the brightness value corresponding to the brightness duty ratio.
Specifically, after the second sub-operating system receives the brightness value of the target screen through the inter-core communication unit, the duty ratio corresponding to the current brightness value of the target screen can be adjusted to be the brightness duty ratio through the data transmission interface between the multi-core heterogeneous chip and the target screen, so that the brightness value of the target screen is consistent with the brightness value corresponding to the brightness duty ratio.
By adopting the screen brightness control method, the system for controlling the screen brightness can be realized for different operating systems on the multi-core heterogeneous chip, and the problem that other operating systems running in the multi-core heterogeneous chip cannot control the display screen because the control right of the display screen is put down to one operating system of the multi-core heterogeneous chip in the prior art is solved.
Based on the same inventive concept, according to the screen brightness control method applied to the second sub-operating system in the screen brightness control system provided in the above embodiment of the disclosure, correspondingly, another embodiment of the disclosure further provides a screen brightness control device applied to the second sub-operating system in the screen brightness control system, whose structural schematic diagram is shown in fig. 5, specifically including:
a target brightness receiving module 501, configured to receive, through an inter-core communication unit, a target screen brightness value sent by a first sub-operating system, where the target screen brightness value is obtained by the first sub-operating system based on a screen brightness control task;
the duty ratio adjustment module 502 is configured to adjust a brightness duty ratio of a target screen corresponding to the pulse modulation signal according to the target screen brightness value;
A brightness value adjusting module 503, configured to adjust a current brightness value of the target screen to a brightness value corresponding to the brightness duty cycle;
the first sub operating system and the second sub operating system are configured as operating systems deployed on a multi-core heterogeneous chip, wherein the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
By adopting the screen brightness control device disclosed by the invention, the screen brightness control system can be realized for different operating systems on the multi-core heterogeneous chip, and the problem that other operating systems running in the multi-core heterogeneous chip cannot control the display screen because the control right of the display screen is put down to one operating system of the multi-core heterogeneous chip in the prior art is solved.
In an embodiment, the luminance value adjusting module 503 is specifically configured to adjust, through a data transmission interface between the multi-core heterogeneous chip and the target screen, a duty cycle corresponding to a current luminance value of the target screen to the luminance duty cycle, so that the luminance value of the target screen is consistent with a luminance value corresponding to the luminance duty cycle.
Based on the same inventive concept, according to the screen brightness control method applied to the first sub-operating system in the screen brightness control system provided in the above embodiment of the disclosure, correspondingly, another embodiment of the disclosure further provides a screen brightness control device applied to the first sub-operating system in the screen brightness control system, whose structural schematic diagram is shown in fig. 6, specifically including:
the task starting module 601 is configured to start a screen brightness control task, and obtain a target screen brightness value based on the screen brightness control task;
the luminance value sending module 602 is configured to send, through an inter-core communication unit of a multi-core heterogeneous chip, the target screen luminance value to a second sub-operating system, so that after receiving the target screen luminance value, the second sub-operating system adjusts a luminance duty cycle of a target screen corresponding to a pulse modulation signal based on the target screen luminance value, and adjusts a current luminance value of the target screen to a luminance value corresponding to the luminance duty cycle;
the first sub operating system and the second sub operating system are configured as operating systems deployed on the multi-core heterogeneous chip, and the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
By adopting the screen brightness control device disclosed by the invention, the screen brightness control system can be realized for different operating systems on the multi-core heterogeneous chip, and the problem that other operating systems running in the multi-core heterogeneous chip cannot control the display screen because the control right of the display screen is put down to one operating system of the multi-core heterogeneous chip in the prior art is solved.
In an embodiment, the task starting module 601 is specifically configured to obtain the brightness of the light collected by the photosensitive sensor corresponding to the target screen; and determining a target screen brightness value based on the light brightness.
In an embodiment, the task starting module 601 is specifically configured to obtain a brightness value currently set by a user as a target screen brightness value.
According to embodiments of the present disclosure, the present disclosure also provides an electronic device and a readable storage medium.
Fig. 7 illustrates a schematic block diagram of an example electronic device 700 that may be used to implement embodiments of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the disclosure described and/or claimed herein.
As shown in fig. 7, the apparatus 700 includes a computing unit 701 that can perform various appropriate actions and processes according to a computer program stored in a Read Only Memory (ROM) 702 or a computer program loaded from a storage unit 708 into a Random Access Memory (RAM) 703. In the RAM703, various programs and data required for the operation of the device 700 may also be stored. The computing unit 701, the ROM702, and the RAM703 are connected to each other through a bus 704. An input/output (I/O) interface 705 is also connected to bus 704.
Various components in device 700 are connected to I/O interface 705, including: an input unit 706 such as a keyboard, a mouse, etc.; an output unit 707 such as various types of displays, speakers, and the like; a storage unit 708 such as a magnetic disk, an optical disk, or the like; and a communication unit 709 such as a network card, modem, wireless communication transceiver, etc. The communication unit 709 allows the device 700 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The computing unit 701 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 701 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, etc. The calculation unit 701 performs the respective methods and processes described above, for example, a screen brightness control method. For example, in some embodiments, the screen brightness control method may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as the storage unit 708. In some embodiments, part or all of the computer program may be loaded and/or installed onto device 700 via ROM702 and/or communication unit 709. When a computer program is loaded into the RAM703 and executed by the computing unit 701, one or more steps of the screen brightness control method described above may be performed. Alternatively, in other embodiments, the computing unit 701 may be configured to perform the screen brightness control method by any other suitable means (e.g. by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems-on-a-chip (SOCs), complex Programmable Logic Devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), and the internet.
The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server may be a cloud server, a server of a distributed system, or a server incorporating a blockchain.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel or sequentially or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (14)
1. A screen brightness control system, the system comprising:
the first sub-operation system is used for starting a screen brightness control task, acquiring a target screen brightness value based on the screen brightness control task, and transmitting the target screen brightness value to the second sub-operation system through an inter-core communication unit of the multi-core heterogeneous chip;
the second sub-operation system is used for receiving the brightness value of the target screen, adjusting the brightness duty ratio of the target screen corresponding to the pulse modulation signal according to the brightness value of the target screen, and adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on the multi-core heterogeneous chip, and the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
2. The system according to claim 1, wherein the second sub-operating system is specifically configured to adjust, through a data transmission interface between the multi-core heterogeneous chip and the target screen, a duty cycle corresponding to a current luminance value of the target screen to the luminance duty cycle, so that the luminance value of the target screen is consistent with a luminance value corresponding to the luminance duty cycle.
3. The system of claim 1, wherein the first sub-operating system is specifically configured to obtain a brightness of light collected by a photosensitive sensor corresponding to the target screen, and determine a target screen brightness value based on the brightness of light.
4. The system according to claim 1, wherein the first sub-operating system is specifically configured to obtain a brightness value currently set by a user as the target screen brightness value.
5. The system of any one of claims 1-4, wherein the screen brightness control system comprises a plurality of first sub-operating systems, the multi-core heterogeneous chip comprises a plurality of processor cores with different architectures, each processor core and hardware resources connected with the processor core form a hardware domain, physical isolation exists between each hardware domain in the multi-core heterogeneous chip, a second sub-operating system is disposed on one hardware domain of the multi-core heterogeneous chip, and a first sub-operating system is disposed on each other hardware domain of the multi-core heterogeneous chip.
6. A method for controlling screen brightness, wherein the method is applied to a second sub-operating system in a screen brightness control system, the method comprising:
Receiving a target screen brightness value sent by a first sub-operation system through an inter-core communication unit, wherein the target screen brightness value is acquired by the first sub-operation system based on a screen brightness control task;
adjusting the brightness duty ratio of a target screen corresponding to the pulse modulation signal according to the brightness value of the target screen;
adjusting the current brightness value of the target screen to be a brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on a multi-core heterogeneous chip, wherein the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
7. The method of claim 6, wherein the adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty cycle comprises:
and adjusting the duty ratio corresponding to the current brightness value of the target screen to be the brightness duty ratio through a data transmission interface between the multi-core heterogeneous chip and the target screen so as to enable the brightness value of the target screen to be consistent with the brightness value corresponding to the brightness duty ratio.
8. A method for controlling screen brightness, wherein the method is applied to a first sub-operating system in a screen brightness control system, the method comprising:
starting a screen brightness control task, and acquiring a target screen brightness value based on the screen brightness control task;
sending the target screen brightness value to a second sub-operation system through an inter-core communication unit of a multi-core heterogeneous chip, so that the second sub-operation system adjusts the brightness duty ratio of a target screen corresponding to a pulse modulation signal based on the target screen brightness value after receiving the target screen brightness value, and adjusts the current brightness value of the target screen to be the brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on the multi-core heterogeneous chip, and the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
9. The method of claim 8, wherein the obtaining a target screen brightness value based on the screen brightness control task comprises:
acquiring the brightness of light acquired by a photosensitive sensor corresponding to the target screen;
And determining a target screen brightness value based on the light brightness.
10. The method of claim 8, wherein the obtaining a target screen brightness value based on the screen brightness control task comprises:
and acquiring the brightness value currently set by the user as a target screen brightness value.
11. A screen brightness control apparatus for use in a second sub-operating system in a screen brightness control system, the apparatus comprising:
the device comprises a target brightness receiving module, a first sub-operation system and a second sub-operation system, wherein the target brightness receiving module is used for receiving a target screen brightness value sent by the first sub-operation system through an inter-core communication unit, and the target screen brightness value is acquired by the first sub-operation system based on a screen brightness control task;
the duty ratio adjusting module is used for adjusting the brightness duty ratio of the target screen corresponding to the pulse modulation signal according to the brightness value of the target screen;
the brightness value adjusting module is used for adjusting the current brightness value of the target screen to the brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on a multi-core heterogeneous chip, wherein the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
12. A screen brightness control apparatus for use in a first sub-operating system in a screen brightness control system, the apparatus comprising:
the task starting module is used for starting a screen brightness control task and acquiring a target screen brightness value based on the screen brightness control task;
the brightness value sending module is used for sending the target screen brightness value to a second sub-operation system through an inter-core communication unit of the multi-core heterogeneous chip, so that the second sub-operation system adjusts the brightness duty ratio of a target screen corresponding to a pulse modulation signal based on the target screen brightness value after receiving the target screen brightness value, and adjusts the current brightness value of the target screen to be the brightness value corresponding to the brightness duty ratio;
the first sub operating system and the second sub operating system are configured as operating systems deployed on the multi-core heterogeneous chip, and the multi-core heterogeneous chip comprises at least two processor cores with different architectures, and each processor core corresponds to one sub operating system.
13. An electronic device, comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 6-7 or 8-10.
14. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 6-7 or 8-10.
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