Expansion screen power control method and system based on power supply equipment adaptation

Abstract

The invention relates to the technical field of power control, in particular to an expansion screen power control method and system based on power supply equipment adaptation. The maximum power of a screen and the maximum power of a loudspeaker are calculated by detecting the maximum output power of power supply equipment, the maximum brightness is determined based on the maximum power of the screen, and the maximum volume is determined based on the maximum power of the loudspeaker; the expansion screen detects target brightness and target volume input by the user; when the target brightness is larger than the maximum brightness, the expansion screen detects the main control power and the loudspeaker power in the running state in real time, the actual maximum brightness is determined, and the brightness of the screen is adjusted to the actual maximum brightness; when the target volume is larger than the maximum volume, the expansion screen detects the main control power and the screen power in the running state in real time, the actual maximum volume is determined, and the volume of the loudspeaker is adjusted to the actual maximum volume; power control over the expansion screen is achieved, the situation that the expansion screen cannot be used due to too high power is avoided, and meanwhile energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the field of power control technology, and in particular to an extended screen power control method and system based on power supply equipment adaptation. Background Art

[0002] An extended screen refers to a device that expands the image and sound output of an electronic device, such as a portable display, external display, secondary screen, etc.

[0003] Usually, the extended screen is powered by other devices. In the prior art, an extended screen can usually only be powered by one type of power supply device. When the extended screen is powered by different types of power supply devices, the output power may not be able to support the normal operation of the extended screen.

[0004] When the user adjusts the brightness or volume of the extended screen, the power of the extended screen will increase. Since the output power of the power supply equipment is limited, the extended screen cannot be used normally, and unnecessary energy consumption is also caused. Summary of the invention

[0005] The main purpose of this application is to provide an extended screen power control method and system based on power supply device adaptation, so as to solve the problem that when the user adjusts the brightness or volume of the extended screen, the power of the extended screen increases, and the extended screen cannot be used normally due to the limited output power of the power supply device; at the same time, it is also to reduce unnecessary energy consumption.

[0006] A first aspect of the present invention provides an extended screen power control method based on power supply device adaptation, comprising:

[0007] After the extended screen is electrically connected to the power supply device, the extended screen detects the maximum output power of the power supply device;

[0008] When it is determined that the maximum output power is not less than the preset minimum power, the extended screen enters the running state, wherein in the running state, the main control chip, screen and speaker of the extended screen are all in the running state, and the minimum power is the minimum power to maintain the running state;

[0009] Based on the maximum output power and the corresponding power weight, the maximum power of the screen and the maximum power of the speaker are calculated, and the maximum brightness is determined based on the maximum power of the screen, and the maximum volume is determined based on the maximum power of the speaker, wherein the maximum power of the screen is the product of the maximum output power and the power weight corresponding to the screen, and the maximum power of the speaker is the product of the maximum output power and the power weight corresponding to the speaker;

[0010] The extended screen detects a target brightness and a target volume input by a user;

[0011] When the target brightness is not greater than the maximum brightness, adjusting the brightness of the extended screen to the target brightness;

[0012] When the target volume is not greater than the maximum volume, adjusting the volume of the extended screen to the target volume;

[0013] When the target brightness is greater than the maximum brightness, the extended screen detects the main control power and the speaker power in real time under the running state, wherein the main control power is the power of the main control chip, the screen power is the power of the screen, and the speaker power is the power of the speaker; and, based on the maximum output power, the main control power and the speaker power, the actual maximum power of the screen is calculated, and the actual maximum brightness is determined based on the actual maximum power of the screen, and the brightness of the screen is adjusted to the actual maximum brightness, wherein the sum of the actual maximum power of the screen, the main control power and the speaker power is not greater than the maximum output power;

[0014] When the target volume is greater than the maximum volume, the extended screen detects the main control power and the screen power in the running state in real time, wherein the screen power is the power of the screen; and, based on the maximum output power, the main control power and the screen power, the actual maximum power of the speaker is calculated, based on the actual maximum power of the speaker, the actual maximum volume is determined, and the volume of the speaker is adjusted to the actual maximum volume, wherein the sum of the actual maximum brightness of the speaker, the main control power and the screen power is not greater than the maximum output power.

[0015] Optionally, determining the maximum brightness based on the maximum power of the screen and determining the maximum volume based on the maximum power of the speaker include:

[0016] The maximum brightness of the screen is determined in a preset screen brightness power correspondence table based on the maximum power of the screen, and the maximum volume is determined in a preset screen brightness power correspondence table based on the maximum power of the speaker.

[0017] Optionally, the extended screen detects a target brightness and a target volume input by a user, including:

[0018] The extended screen detects a first input, and determines a first target brightness and a first target volume based on the first input, wherein the first input is an input of a user to the extended screen;

[0019] The extended screen acquires a second input detected by the power supply device, and determines a second target brightness and a second target volume based on the second input, wherein the second input is an input of a user to the power supply device;

[0020] A target brightness is determined according to the first target brightness and the second target brightness, and a target volume is determined according to the first target volume and the second target volume.

[0021] Optionally, the extended screen detects a first input, comprising:

[0022] The extended screen detects user input to a brightness adjustment key and a volume adjustment key, and determines a first target brightness based on the user input to the brightness adjustment key, and determines a first target volume based on the user input to the volume adjustment key, wherein the brightness adjustment key and the volume adjustment key are both arranged outside the extended screen.

[0023] Optionally, the extended screen acquires the second input detected by the power supply device, including:

[0024] The extended screen obtains the second input detected by the power supply device through the connecting line, wherein the extended screen and the power supply device are electrically connected through the connecting line;

[0025] The power supply device detects the second input by detecting an input from a user on a screen or a button of the power supply device.

[0026] Optionally, the extended screen detects the maximum output power of the power supply device, including:

[0027] The extended screen detects the maximum output power of the power supply device through the PD protocol.

[0028] Optionally, the extended screen has a detection circuit;

[0029] The extended screen detects the main control power, screen power and speaker power in real time in the running state through the detection circuit.

[0030] A second aspect of the present invention provides an extended screen, comprising:

[0031] A first detection unit, configured to enable the extended screen to detect the maximum output power of the power supply device after the extended screen is electrically connected to the power supply device;

[0032] A starting unit, configured to, when it is determined that the maximum output power is not less than a preset minimum power, cause the extended screen to enter a running state, wherein in the running state, the main control chip, the screen and the speaker of the extended screen are all in a running state, and the minimum power is the minimum power for maintaining the running state;

[0033] a calculation unit, configured to calculate the maximum power of the screen and the maximum power of the speaker based on the maximum output power and the corresponding power weight, and determine the maximum brightness based on the maximum power of the screen, and determine the maximum volume based on the maximum power of the speaker, wherein the maximum power of the screen is the product of the maximum output power and the power weight corresponding to the screen, and the maximum power of the speaker is the product of the maximum output power and the power weight corresponding to the speaker;

[0034] A second detection unit, used to detect a target brightness and a target volume input by a user;

[0035] A first adjustment unit, configured to adjust the brightness of the extended screen to a target brightness when the target brightness is not greater than the maximum brightness;

[0036] A second adjustment unit, configured to adjust the volume of the extended screen to a target volume when the target volume is not greater than the maximum volume;

[0037] A third adjustment unit is used for, when the target brightness is greater than the maximum brightness, the extended screen real-time detecting the main control power and the speaker power in the running state, wherein the main control power is the power of the main control chip, the screen power is the power of the screen, and the speaker power is the power of the speaker; and, based on the maximum output power, the main control power and the speaker power, calculating the actual maximum power of the screen, determining the actual maximum brightness based on the actual maximum power of the screen, and adjusting the brightness of the screen to the actual maximum brightness, wherein the sum of the actual maximum power of the screen, the main control power and the speaker power is not greater than the maximum output power;

[0038] The fourth adjustment unit is used for, when the target volume is greater than the maximum volume, the extended screen detects the main control power and the screen power in the running state in real time, wherein the screen power is the power of the screen; and, based on the maximum output power, the main control power and the screen power, calculates the actual maximum power of the speaker, based on the actual maximum power of the speaker, determines the actual maximum volume, and adjusts the volume of the speaker to the actual maximum volume, wherein the sum of the actual maximum brightness of the speaker, the main control power and the screen power is not greater than the maximum output power.

[0039] A third aspect of the present invention provides a power supply device, which is electrically connected to the extended screen as described in the second aspect of the present invention.

[0040] The fourth aspect of the present invention provides an extended screen power control system based on power supply device adaptation, including the extended screen as described in the second aspect of the present invention and the power supply device as described in the third aspect of the present invention.

[0041] In the technical solution of the present invention, specifically, through the implementation of the extended screen power control method based on the adaptation of the power supply device, after the extended screen is electrically connected to the power supply device, the maximum output power of the power supply device is determined through the PD protocol, and the maximum brightness and maximum volume are determined according to the maximum output power and the preset power weight; when it is detected that the target brightness and target volume input by the user are greater than the maximum brightness and the maximum volume, the power of the screen, the speaker and the main control chip are detected in real time, and the actual maximum power of the screen and the actual maximum power of the speaker that can be supported under the output power of the current power supply device are calculated, and the corresponding actual maximum brightness and actual maximum volume are determined based on the actual maximum power of the screen and the actual maximum power of the speaker, and the brightness of the screen is adjusted to the actual maximum brightness, and the volume of the speaker is adjusted to the actual maximum volume, thereby achieving the adjustment of the extended screen to a degree close to the user's needs according to the target brightness (reflecting the brightness that the user actually wants to adjust) and the target volume (reflecting the volume that the user wants to adjust) output by the user without affecting the normal use of the extended screen. This solves the problem that when the user adjusts the brightness or volume of the extended screen, the power of the extended screen increases, and the extended screen cannot be used normally due to the limited output power of the power supply equipment. At the same time, it avoids unnecessary energy consumption when the extended screen cannot be used normally (for example, the brightness is adjusted too high, resulting in the extended screen cannot be used normally, and energy consumption will also be generated when it is in standby mode). Furthermore, due to the setting of the reserved power, the overall power of the extended screen can be controlled, which is beneficial to energy saving and reducing the burden on the power supply equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of an embodiment of an extended screen power control method based on power supply equipment adaptation in an embodiment of the present invention;

[0043] Figure 2 It is a schematic diagram of another embodiment of the extended screen power control method based on power supply equipment adaptation in an embodiment of the present invention;

[0044] Figure 3 A schematic diagram of an embodiment of an extended screen in an embodiment of the present invention;

[0045] Figure 4 It is a schematic diagram of an embodiment of an extended screen power control system based on power supply equipment adaptation in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0048] For ease of understanding, the specific process of the embodiment of the present invention is described below. Figure 1 , an embodiment of an extended screen power control method based on power supply equipment adaptation in an embodiment of the present invention, the implementation steps of the method are as follows:

[0049] Step 101: After the extended screen is electrically connected to the power supply device, the extended screen detects the maximum output power of the power supply device;

[0050] In this step, the extended screen is electrically connected to the power supply device via a connecting wire, and preferably, the connecting wire adopts the USB Type-C standard;

[0051] The extended screen communicates through the PD protocol to obtain the currently selected voltage level and maximum output current. After the voltage level and maximum output current are determined, the maximum output power is calculated by multiplying the maximum voltage and maximum output current corresponding to the voltage level.

[0052] Step 102: When it is determined that the maximum output power is not less than the preset minimum power, the extended screen enters the running state, wherein in the running state, the main control chip, screen and speaker of the extended screen are all in the running state, and the minimum power is the minimum power to maintain the running state;

[0053] In this step, the minimum power of the extended screen can be set to at least any power in the range of 5W to 15W. In actual applications, the corresponding minimum power is determined according to the specific configuration of the screen, speaker and main control chip of the extended screen.

[0054] Step 103: Based on the maximum output power and the corresponding power weight, the maximum power of the screen and the maximum power of the speaker are calculated, and the maximum brightness is determined based on the maximum power of the screen, and the maximum volume is determined based on the maximum power of the speaker, wherein the maximum power of the screen is the product of the maximum output power and the power weight corresponding to the screen, and the maximum power of the speaker is the product of the maximum output power and the power weight corresponding to the speaker;

[0055] In this step, the power weight is set according to the specific configuration of the screen, speaker and main control chip of the extended screen. For example, the power weight corresponding to the screen is 0.65, the power weight corresponding to the speaker is 0.2, and the power weight corresponding to the main control chip is 0.15. For another example, the power weight corresponding to the screen is 0.7, the power weight corresponding to the speaker is 0.15, and the power weight corresponding to the main control chip is 0.15. For another example, the power weight corresponding to the screen is 0.8, the power weight corresponding to the speaker is 0.1, and the power weight corresponding to the main control chip is 0.1.

[0056] Step 104: The extended screen detects the target brightness and target volume input by the user;

[0057] In this step, the extended screen detects the target brightness and target volume input by the user, including:

[0058] The extended screen detects a first input, and determines a first target brightness and a first target volume based on the first input, wherein the first input is an input of a user to the extended screen;

[0059] The extended screen acquires a second input detected by the power supply device, and determines a second target brightness and a second target volume based on the second input, wherein the second input is an input of a user to the power supply device;

[0060] A target brightness is determined according to the first target brightness and the second target brightness, and a target volume is determined according to the first target volume and the second target volume.

[0061] Further, the extended screen detects the first input, including:

[0062] The extended screen detects user input to a brightness adjustment key and a volume adjustment key, and determines a first target brightness based on the user input to the brightness adjustment key, and determines a first target volume based on the user input to the volume adjustment key, wherein the brightness adjustment key and the volume adjustment key are both arranged outside the extended screen.

[0063] Further, the extended screen acquires the second input detected by the power supply device, including:

[0064] The extended screen obtains the second input detected by the power supply device through the connecting line, wherein the extended screen and the power supply device are electrically connected through the connecting line;

[0065] The power supply device detects the second input by detecting an input from a user on a screen or a button of the power supply device.

[0066] Step 105, when the target brightness is not greater than the maximum brightness, the brightness of the extended screen is adjusted to the target brightness; when the target volume is not greater than the maximum volume, the volume of the extended screen is adjusted to the target volume; when the target brightness is greater than the maximum brightness, the extended screen detects the main control power and the speaker power in the running state in real time, wherein the main control power is the power of the main control chip, the screen power is the power of the screen, and the speaker power is the power of the speaker; and, based on the maximum output power, the main control power and the speaker power, the actual maximum power of the screen is calculated, based on the actual maximum power of the screen, the actual maximum brightness is determined, and the brightness of the screen is adjusted to the actual maximum brightness, wherein the sum of the actual maximum power of the screen, the main control power and the speaker power is not greater than the maximum output power; when the target volume is greater than the maximum volume, the extended screen detects the main control power and the screen power in the running state in real time, wherein the screen power is the power of the screen; and, based on the maximum output power, the main control power and the screen power, the actual maximum power of the speaker is calculated, based on the actual maximum power of the speaker, the actual maximum volume is determined, and the volume of the speaker is adjusted to the actual maximum volume, wherein the sum of the actual maximum brightness of the speaker, the main control power and the screen power is not greater than the maximum output power.

[0067] In this step, the extended screen has a detection circuit;

[0068] The extended screen detects the main control power, screen power and speaker power in real time in the running state through the detection circuit.

[0069] The detection circuit detects the current and voltage of the target circuit, and calculates the main control power, screen power and speaker power through the formula P (power) = U (voltage) I (current).

[0070] Current detection: A low-resistance resistor can be connected in series in the target circuit to detect the voltage at the resistor. The current value can be calculated using Ohm's law (I (current) = U (voltage) / R (resistance)).

[0071] Voltage detection: The current voltage after voltage division can be detected by connecting resistors in series. The voltage of the target circuit can be calculated by the resistance value and the current voltage.

[0072] In practical applications, the actual maximum power of the screen and the actual maximum power of the speaker are calculated based on the rule that the sum of the actual maximum brightness of the speaker, the main control power and the screen power is not greater than the maximum output power. In practical applications, in order to save energy or reduce the burden on the power supply equipment, the reserved power can be set to satisfy the following formula:

[0073] Maximum output power = reserved power + main control power + screen power + speaker power;

[0074] By setting the reserved power, the total power consumed by the extended screen can be reduced as needed, thereby achieving the technical effect of energy saving and reducing the burden on power supply equipment.

[0075] Through the implementation of the extended screen power control method based on the adaptation of the power supply device, after the extended screen is electrically connected to the power supply device, the maximum output power of the power supply device is determined through the PD protocol, and the maximum brightness and maximum volume are determined according to the maximum output power and the preset power weight; when it is detected that the target brightness and target volume input by the user are greater than the maximum brightness and the maximum volume, the power of the screen, the speaker and the main control chip are detected in real time, and the actual maximum power of the screen and the actual maximum power of the speaker that can be supported under the output power of the current power supply device are calculated, and the corresponding actual maximum brightness and actual maximum volume are determined based on the actual maximum power of the screen and the actual maximum power of the speaker, and the brightness of the screen is adjusted to the actual maximum brightness, and the volume of the speaker is adjusted to the actual maximum volume, thereby achieving the adjustment of the extended screen to a degree close to the user's needs according to the target brightness (reflecting the brightness that the user actually wants to adjust) and the target volume (reflecting the volume that the user wants to adjust) output by the user without affecting the normal use of the extended screen. This solves the problem that when the user adjusts the brightness or volume of the extended screen, the power of the extended screen increases, and the extended screen cannot be used normally due to the limited output power of the power supply equipment. At the same time, it avoids unnecessary energy consumption when the extended screen cannot be used normally (for example, the brightness is adjusted too high, resulting in the extended screen cannot be used normally, and energy consumption will also be generated when it is in standby mode). Furthermore, due to the setting of the reserved power, the overall power of the extended screen can be controlled, which is beneficial to energy saving and reducing the burden on the power supply equipment.

[0076] See also Figure 2 Another embodiment of the extended screen power control method based on power supply device adaptation in the embodiment of the present invention, the implementation steps of the method are as follows:

[0077] Step 201: After the extended screen is electrically connected to the power supply device, the extended screen detects the maximum output power of the power supply device;

[0078] Step 202: When it is determined that the maximum output power is not less than the preset minimum power, the extended screen enters the running state, wherein in the running state, the main control chip, screen and speaker of the extended screen are all in the running state, and the minimum power is the minimum power to maintain the running state;

[0079] Step 203: Based on the maximum output power and the corresponding power weight, the maximum power of the screen and the maximum power of the speaker are calculated, and the maximum brightness is determined based on the maximum power of the screen, and the maximum volume is determined based on the maximum power of the speaker, wherein the maximum power of the screen is the product of the maximum output power and the power weight corresponding to the screen, and the maximum power of the speaker is the product of the maximum output power and the power weight corresponding to the speaker;

[0080] Step 204: The extended screen detects the target brightness and target volume input by the user;

[0081] Step 205, when the target brightness is not greater than the maximum brightness, the brightness of the extended screen is adjusted to the target brightness; when the target volume is not greater than the maximum volume, the volume of the extended screen is adjusted to the target volume; when the target brightness is greater than the maximum brightness, the extended screen detects the main control power and the speaker power in the running state in real time, wherein the main control power is the power of the main control chip, the screen power is the power of the screen, and the speaker power is the power of the speaker; and, based on the maximum output power, the main control power and the speaker power, the actual maximum power of the screen is calculated, based on the actual maximum power of the screen, the actual maximum brightness is determined, and the brightness of the screen is adjusted to the actual maximum brightness, wherein the sum of the actual maximum power of the screen, the main control power and the speaker power is not greater than the maximum output power; when the target volume is greater than the maximum volume, the extended screen detects the main control power and the screen power in the running state in real time, wherein the screen power is the power of the screen; and, based on the maximum output power, the main control power and the screen power, the actual maximum power of the speaker is calculated, based on the actual maximum power of the speaker, the actual maximum volume is determined, and the volume of the speaker is adjusted to the actual maximum volume, wherein the sum of the actual maximum brightness of the speaker, the main control power and the screen power is not greater than the maximum output power;

[0082] Step 206 : The extended screen detects the resolution input of the user, determines the minimum resolution according to the resolution input, adjusts the screen resolution to the minimum resolution, and then returns to step 205 .

[0083] In this step, the third input includes the third input of the user for the extended screen and the fourth input of the user for the power supply device, the extended screen detects the resolution input of the user, and determines the minimum resolution according to the resolution input, including:

[0084] The extended screen detects a third input, and determines a first resolution based on the third input;

[0085] The extended screen acquires a fourth input detected by the power supply device, and determines a second resolution based on the fourth input;

[0086] A lowest resolution is determined according to the first resolution and the second resolution.

[0087] Further, the extended screen detects a third input, including:

[0088] The extended screen detects a user input to a resolution adjustment device, and determines a first resolution based on the user input to the resolution adjustment device; wherein the resolution adjustment device includes at least one of a button, a touch screen, and a touch pad.

[0089] Further, the extended screen acquires the fourth input detected by the power supply device, including:

[0090] The extended screen obtains the fourth input detected by the power supply device through the connecting line, wherein the extended screen and the power supply device are electrically connected through the connecting line;

[0091] The power supply device detects the fourth input by detecting a user's operation on a resolution adjustment device of the power supply device.

[0092] Furthermore, the adjustment of the screen resolution to the lowest resolution may be achieved by reducing the resolution of the extended screen, for example:

[0093] This is achieved by modifying EDID. After modification, the main control chip needs to be reset to reselect EDID.

[0094] The resolution can be reduced by cutting the signal inside the chip. Similarly, it needs to be reset after modification.

[0095] Through the implementation of the extended screen power control method based on the adaptation of the power supply device, after the extended screen is electrically connected to the power supply device, the maximum output power of the power supply device is determined through the PD protocol, and the maximum brightness and maximum volume are determined according to the maximum output power and the preset power weight; when it is detected that the target brightness and target volume input by the user are greater than the maximum brightness and the maximum volume, the power of the screen, the speaker and the main control chip are detected in real time, and the actual maximum power of the screen and the actual maximum power of the speaker that can be supported under the output power of the current power supply device are calculated, and the corresponding actual maximum brightness and actual maximum volume are determined based on the actual maximum power of the screen and the actual maximum power of the speaker, and the brightness of the screen is adjusted to the actual maximum brightness, and the volume of the speaker is adjusted to the actual maximum volume, thereby achieving the adjustment of the extended screen to a degree close to the user's needs according to the target brightness (reflecting the brightness that the user actually wants to adjust) and the target volume (reflecting the volume that the user wants to adjust) output by the user without affecting the normal use of the extended screen.

[0096] Furthermore, since high-resolution images will increase the power of the screen and the main control chip, when the user does not have high requirements for the resolution, the user's resolution input is detected through the extended screen, and the minimum resolution is determined based on the resolution input. After the screen resolution is adjusted to the minimum resolution, the power of the screen, speaker and main control chip is detected in real time. At this time, the total power of the screen, speaker and main control chip will be reduced, making it easier to adjust the extended screen to a level closer to the user's needs (reduce the resolution so that limited power can support higher brightness and volume).

[0097] This solves the problem that when the user adjusts the brightness or volume of the extended screen, the power of the extended screen increases, and the extended screen cannot be used normally due to the limited output power of the power supply equipment. At the same time, it avoids unnecessary energy consumption when the extended screen cannot be used normally (for example, the brightness is adjusted too high, resulting in the extended screen cannot be used normally, and energy consumption will also be generated when it is in standby mode). Furthermore, due to the setting of the reserved power, the overall power of the extended screen can be controlled, which is beneficial to energy saving and reducing the burden on the power supply equipment.

[0098] The present invention also provides an extended screen, the extended screen comprising:

[0099] A first detection unit, configured to enable the extended screen to detect the maximum output power of the power supply device after the extended screen is electrically connected to the power supply device;

[0100] A starting unit, configured to, when it is determined that the maximum output power is not less than a preset minimum power, cause the extended screen to enter a running state, wherein in the running state, the main control chip, the screen and the speaker of the extended screen are all in a running state, and the minimum power is the minimum power for maintaining the running state;

[0101] a calculation unit, configured to calculate the maximum power of the screen and the maximum power of the speaker based on the maximum output power and the corresponding power weight, and determine the maximum brightness based on the maximum power of the screen, and determine the maximum volume based on the maximum power of the speaker, wherein the maximum power of the screen is the product of the maximum output power and the power weight corresponding to the screen, and the maximum power of the speaker is the product of the maximum output power and the power weight corresponding to the speaker;

[0102] A second detection unit, used to detect a target brightness and a target volume input by a user;

[0103] A first adjustment unit, configured to adjust the brightness of the extended screen to a target brightness when the target brightness is not greater than the maximum brightness;

[0104] A second adjustment unit, configured to adjust the volume of the extended screen to a target volume when the target volume is not greater than the maximum volume;

[0105] A third adjustment unit is used for, when the target brightness is greater than the maximum brightness, the extended screen real-time detecting the main control power and the speaker power in the running state, wherein the main control power is the power of the main control chip, the screen power is the power of the screen, and the speaker power is the power of the speaker; and, based on the maximum output power, the main control power and the speaker power, calculating the actual maximum power of the screen, determining the actual maximum brightness based on the actual maximum power of the screen, and adjusting the brightness of the screen to the actual maximum brightness, wherein the sum of the actual maximum power of the screen, the main control power and the speaker power is not greater than the maximum output power;

[0106] The fourth adjustment unit is used for, when the target volume is greater than the maximum volume, the extended screen detects the main control power and the screen power in the running state in real time, wherein the screen power is the power of the screen; and, based on the maximum output power, the main control power and the screen power, calculates the actual maximum power of the speaker, based on the actual maximum power of the speaker, determines the actual maximum volume, and adjusts the volume of the speaker to the actual maximum volume, wherein the sum of the actual maximum brightness of the speaker, the main control power and the screen power is not greater than the maximum output power.

[0107] In practical applications, such as Figure 3 As shown, the extended screen has a screen, a speaker and a control module, and the first detection unit, the starting unit, the calculation unit, the second detection unit, the first adjustment unit, the second adjustment unit, the third adjustment unit, the fourth adjustment unit and the main control chip constitute a control module.

[0108] In actual applications, the extended screen also has a volume adjustment key, a brightness adjustment key, and a resolution adjustment device. The extended screen also has a touch screen, and determines the minimum resolution in response to user input to the touch screen.

[0109] Through the implementation of the extended screen, after the extended screen is electrically connected to the power supply device, the maximum output power of the power supply device is determined through the PD protocol, and the maximum brightness and maximum volume are determined according to the maximum output power and the preset power weight; when it is detected that the target brightness and target volume input by the user are greater than the maximum brightness and maximum volume, the power of the screen, speaker and main control chip is detected in real time, and the actual maximum power of the screen and the actual maximum power of the speaker that can be supported under the output power of the current power supply device are calculated, and the corresponding actual maximum brightness and actual maximum volume are determined based on the actual maximum power of the screen and the actual maximum power of the speaker, and the brightness of the screen is adjusted to the actual maximum brightness, and the volume of the speaker is adjusted to the actual maximum volume, thereby achieving the adjustment of the extended screen to a degree close to the user's needs according to the target brightness (reflecting the brightness that the user actually wants to adjust) and target volume (reflecting the volume that the user wants to adjust) output by the user without affecting the normal use of the extended screen. This solves the problem that when the user adjusts the brightness or volume of the extended screen, the power of the extended screen increases, and the extended screen cannot be used normally due to the limited output power of the power supply equipment. At the same time, it avoids unnecessary energy consumption when the extended screen cannot be used normally (for example, the brightness is adjusted too high, resulting in the extended screen cannot be used normally, and energy consumption will also be generated when it is in standby mode). Furthermore, due to the setting of the reserved power, the overall power of the extended screen can be controlled, which is beneficial to energy saving and reducing the burden on the power supply equipment.

[0110] The present invention also provides a power supply device, wherein the power supply device is electrically connected to the extended screen;

[0111] In practical applications, the power supply device supplies power to the extended screen based on the electrical connection;

[0112] In practical applications, the power supply device transmits image data and sound data to the extended screen based on the electrical connection.

[0113] Through the implementation of the extended screen, after the extended screen is electrically connected to the power supply device, the maximum output power of the power supply device is determined through the PD protocol, and the maximum brightness and maximum volume are determined according to the maximum output power and the preset power weight; when it is detected that the target brightness and target volume input by the user are greater than the maximum brightness and maximum volume, the power of the screen, speaker and main control chip is detected in real time, and the actual maximum power of the screen and the actual maximum power of the speaker that can be supported under the output power of the current power supply device are calculated, and the corresponding actual maximum brightness and actual maximum volume are determined based on the actual maximum power of the screen and the actual maximum power of the speaker, and the brightness of the screen is adjusted to the actual maximum brightness, and the volume of the speaker is adjusted to the actual maximum volume, thereby achieving the adjustment of the extended screen to a degree close to the user's needs according to the target brightness (reflecting the brightness that the user actually wants to adjust) and target volume (reflecting the volume that the user wants to adjust) output by the user without affecting the normal use of the extended screen. This solves the problem that when the user adjusts the brightness or volume of the extended screen, the power of the extended screen increases, and the extended screen cannot be used normally due to the limited output power of the power supply equipment. At the same time, it avoids unnecessary energy consumption when the extended screen cannot be used normally (for example, the brightness is adjusted too high, resulting in the extended screen cannot be used normally, and energy consumption will also be generated when it is in standby mode). Furthermore, due to the setting of the reserved power, the overall power of the extended screen can be controlled, which is beneficial to energy saving and reducing the burden on the power supply equipment.

[0114] Please refer to Figure 4 , an embodiment of an extended screen power control system based on power supply device adaptation in an embodiment of the present invention, the system includes a power supply device and an extended screen.

[0115] By implementing an extended screen power control system based on power supply device adaptation, after the extended screen is electrically connected to the power supply device, the maximum output power of the power supply device is determined through the PD protocol, and the maximum brightness and maximum volume are determined according to the maximum output power and the preset power weight; when it is detected that the target brightness and target volume input by the user are greater than the maximum brightness and maximum volume, the power of the screen, speaker and main control chip is detected in real time, and the actual maximum power of the screen and the actual maximum power of the speaker that can be supported under the output power of the current power supply device are calculated, and the corresponding actual maximum brightness and actual maximum volume are determined based on the actual maximum power of the screen and the actual maximum power of the speaker, and the brightness of the screen is adjusted to the actual maximum brightness, and the volume of the speaker is adjusted to the actual maximum volume, thereby achieving the adjustment of the extended screen to a level close to the user's needs according to the target brightness (reflecting the brightness that the user actually wants to adjust) and target volume (reflecting the volume that the user wants to adjust) output by the user without affecting the normal use of the extended screen. This solves the problem that when the user adjusts the brightness or volume of the extended screen, the power of the extended screen increases, and the extended screen cannot be used normally due to the limited output power of the power supply equipment. At the same time, it avoids unnecessary energy consumption when the extended screen cannot be used normally (for example, the brightness is adjusted too high, resulting in the extended screen cannot be used normally, and energy consumption will also be generated when it is in standby mode). Furthermore, due to the setting of the reserved power, the overall power of the extended screen can be controlled, which is beneficial to energy saving and reducing the burden on the power supply equipment.

[0116] In practical applications, the above-mentioned methods can be implemented based on artificial intelligence technology, where artificial intelligence (AI) is the theory, method, technology and application system that uses digital computers or machines controlled by digital computers to simulate, extend and expand human intelligence, perceive the environment, acquire knowledge and use knowledge to obtain the best results. It can be specifically executed based on a server, which can be an independent server or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDNs), and big data and artificial intelligence platforms.

[0117] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0118] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0119] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. Extended screen power control method based on power supply equipment adaptation, It is characterized in that include: After the extended screen is electrically connected to the power supply device, the extended screen detects the maximum output power of the power supply device; When it is determined that the maximum output power is not less than the preset minimum power, the extended screen enters the running state, wherein in the running state, the main control chip, screen and speaker of the extended screen are all in the running state, and the minimum power is the minimum power to maintain the running state; Based on the maximum output power and the corresponding power weight, the maximum power of the screen and the maximum power of the speaker are calculated, and the maximum brightness is determined based on the maximum power of the screen, and the maximum volume is determined based on the maximum power of the speaker, wherein the maximum power of the screen is the product of the maximum output power and the power weight corresponding to the screen, and the maximum power of the speaker is the product of the maximum output power and the power weight corresponding to the speaker; The extended screen detects a target brightness and a target volume input by a user; When the target brightness is not greater than the maximum brightness, adjusting the brightness of the extended screen to the target brightness; When the target volume is not greater than the maximum volume, adjusting the volume of the extended screen to the target volume; When the target brightness is greater than the maximum brightness, the extended screen detects the main control power and the speaker power in real time under the running state, wherein the main control power is the power of the main control chip, the screen power is the power of the screen, and the speaker power is the power of the speaker; and, based on the maximum output power, the main control power and the speaker power, the actual maximum power of the screen is calculated, and the actual maximum brightness is determined based on the actual maximum power of the screen, and the brightness of the screen is adjusted to the actual maximum brightness, wherein the sum of the actual maximum power of the screen, the main control power and the speaker power is not greater than the maximum output power; When the target volume is greater than the maximum volume, the extended screen detects the main control power and the screen power in the running state in real time, wherein the screen power is the power of the screen; and, based on the maximum output power, the main control power and the screen power, the actual maximum power of the speaker is calculated, based on the actual maximum power of the speaker, the actual maximum volume is determined, and the volume of the speaker is adjusted to the actual maximum volume, wherein the sum of the actual maximum brightness of the speaker, the main control power and the screen power is not greater than the maximum output power.

2. According to claim 1, the extended screen power control method based on power supply equipment adaptation, It is characterized in that The determining of the maximum brightness based on the maximum power of the screen and the determining of the maximum volume based on the maximum power of the speaker include: The maximum brightness of the screen is determined in a preset screen brightness power correspondence table based on the maximum power of the screen, and the maximum volume is determined in a preset screen brightness power correspondence table based on the maximum power of the speaker.

3. The extended screen power control method based on power supply equipment adaptation according to claim 1, It is characterized in that The extended screen detects a target brightness and a target volume input by a user, including: The extended screen detects a first input, and determines a first target brightness and a first target volume based on the first input, wherein the first input is an input of a user to the extended screen; The extended screen acquires a second input detected by the power supply device, and determines a second target brightness and a second target volume based on the second input, wherein the second input is an input of a user to the power supply device; A target brightness is determined according to the first target brightness and the second target brightness, and a target volume is determined according to the first target volume and the second target volume.

4. The extended screen power control method based on power supply equipment adaptation according to claim 3, It is characterized in that The extended screen detects a first input, including: The extended screen detects user input to a brightness adjustment key and a volume adjustment key, and determines a first target brightness based on the user input to the brightness adjustment key, and determines a first target volume based on the user input to the volume adjustment key, wherein the brightness adjustment key and the volume adjustment key are both arranged outside the extended screen.

5. The extended screen power control method based on power supply equipment adaptation according to claim 3, It is characterized in that The extended screen acquires a second input detected by the power supply device, including: The extended screen obtains the second input detected by the power supply device through the connecting line, wherein the extended screen and the power supply device are electrically connected through the connecting line; The power supply device detects the second input by detecting an input from a user on a screen or a button of the power supply device.

6. The extended screen power control method based on power supply equipment adaptation according to claim 1, It is characterized in that The extended screen detects the maximum output power of the power supply device, including: The extended screen detects the maximum output power of the power supply device through the PD protocol.

7. The extended screen power control method based on power supply equipment adaptation according to claim 4, It is characterized in that The extended screen has a detection circuit; The extended screen detects the main control power, screen power and speaker power in real time in the running state through the detection circuit.

8. An extended screen, It is characterized in that include: A first detection unit, configured to enable the extended screen to detect the maximum output power of the power supply device after the extended screen is electrically connected to the power supply device; A starting unit, configured to, when it is determined that the maximum output power is not less than a preset minimum power, cause the extended screen to enter a running state, wherein in the running state, the main control chip, the screen and the speaker of the extended screen are all in a running state, and the minimum power is the minimum power for maintaining the running state; a calculation unit, configured to calculate the maximum power of the screen and the maximum power of the speaker based on the maximum output power and the corresponding power weight, and determine the maximum brightness based on the maximum power of the screen, and determine the maximum volume based on the maximum power of the speaker, wherein the maximum power of the screen is the product of the maximum output power and the power weight corresponding to the screen, and the maximum power of the speaker is the product of the maximum output power and the power weight corresponding to the speaker; A second detection unit, used to detect a target brightness and a target volume input by a user; A first adjustment unit, configured to adjust the brightness of the extended screen to a target brightness when the target brightness is not greater than the maximum brightness; A second adjustment unit, configured to adjust the volume of the extended screen to a target volume when the target volume is not greater than the maximum volume; A third adjustment unit is used for, when the target brightness is greater than the maximum brightness, the extended screen real-time detecting the main control power and the speaker power in the running state, wherein the main control power is the power of the main control chip, the screen power is the power of the screen, and the speaker power is the power of the speaker; and, based on the maximum output power, the main control power and the speaker power, calculating the actual maximum power of the screen, determining the actual maximum brightness based on the actual maximum power of the screen, and adjusting the brightness of the screen to the actual maximum brightness, wherein the sum of the actual maximum power of the screen, the main control power and the speaker power is not greater than the maximum output power; The fourth adjustment unit is used for, when the target volume is greater than the maximum volume, the extended screen detects the main control power and the screen power in the running state in real time, wherein the screen power is the power of the screen; and, based on the maximum output power, the main control power and the screen power, calculates the actual maximum power of the speaker, based on the actual maximum power of the speaker, determines the actual maximum volume, and adjusts the volume of the speaker to the actual maximum volume, wherein the sum of the actual maximum brightness of the speaker, the main control power and the screen power is not greater than the maximum output power.

9. A power supply device, It is characterized in that The power supply device establishes an electrical connection with the extended screen as claimed in claim 8.

10. An extended screen power control system based on power supply equipment adaptation, It is characterized in that It comprises the extended screen as claimed in claim 8 and the power supply device as claimed in claim 9.

Images