WO2021218540A1 - Procédé d'ajustement de puissance d'antenne, dispositif de terminal et support de stockage - Google Patents

Procédé d'ajustement de puissance d'antenne, dispositif de terminal et support de stockage Download PDF

Info

Publication number
WO2021218540A1
WO2021218540A1 PCT/CN2021/084203 CN2021084203W WO2021218540A1 WO 2021218540 A1 WO2021218540 A1 WO 2021218540A1 CN 2021084203 W CN2021084203 W CN 2021084203W WO 2021218540 A1 WO2021218540 A1 WO 2021218540A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
terminal device
target
area
image
Prior art date
Application number
PCT/CN2021/084203
Other languages
English (en)
Chinese (zh)
Inventor
苏子剑
王毅
王辉
余香涛
Original Assignee
荣耀终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Publication of WO2021218540A1 publication Critical patent/WO2021218540A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application belongs to the field of communication technology, and in particular relates to an antenna power adjustment method, terminal equipment, and computer-readable storage medium.
  • the specific absorption rate or electromagnetic wave absorption rate refers to the electromagnetic radiation energy absorbed or consumed by a unit mass of the human body per unit time, and is used to measure the impact of electromagnetic radiation on the human body. The greater the SAR, the The greater the impact on the human body. In order to reduce the influence of electromagnetic radiation on the human body, when the user approaches the terminal device, the transmitting power of the antenna in the terminal device is generally reduced to reduce the SAR.
  • the proximity capacitive sensor or proximity optical sensor in the terminal device is generally used to determine whether the human body is close to the terminal device.
  • the transmission power of all antennas in the terminal device is reduced based on a unified standard.
  • the distance between the antennas in different positions of the terminal equipment and the human body is not the same, therefore, the SAR generated is also not the same.
  • the uniform power reduction of all antennas indiscriminately will cause the communication performance of the terminal equipment to decrease and affect The user’s communication experience.
  • the embodiments of the present application provide an antenna power adjustment method, a terminal device, and a computer-readable storage medium, which can improve the efficiency of adjusting the antenna power in the terminal device, ensure the communication performance of the terminal device, and improve the communication experience of the user.
  • an embodiment of the present application provides an antenna power adjustment method, which is applied to a terminal device, and the method may include:
  • the terminal device Acquire an image collected by a camera in the terminal device, and determine a predetermined target based on the image, where the predetermined target includes at least one of a head, a body, and a hand, and the predetermined target is different from the terminal device.
  • the first distance between is smaller than the first distance threshold;
  • the antenna to be adjusted corresponding to the predetermined target is determined, and the transmit power of the antenna to be adjusted is reduced according to the backoff parameter corresponding to the predetermined target.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the determining a predetermined target according to the image includes:
  • the first distance between the target and the terminal device can be determined according to the image area occupied by the target in the first image/second image. It should be understood that when the image area occupied by the target in the image is larger, the first distance between the target and the terminal device is smaller, and the target is closer to the terminal device; when the image area occupied by the target in the image is smaller, the target and The greater the first distance between terminal devices, the farther the target is from the terminal device. Specifically, the correspondence between the image area occupied by the target in the image and the first distance can be obtained through a test in advance.
  • the image area of the target in the first image/second image can be detected, and the first image between the target and the terminal device can be determined according to the image area and the corresponding relationship.
  • the first target feature in the first image can be identified.
  • the first target feature is a local head feature
  • the head and the terminal device corresponding to the first target feature can be determined immediately. If the first distance is less than the first distance threshold, it can be determined that the terminal device is in a headphone talk state (for example, a headset talk state), that is, it is determined that the predetermined target close to the terminal device includes the head.
  • the first target feature is a facial feature, it can indicate that the user is currently reading the screen of the terminal device.
  • the second target feature in the second image can be further identified.
  • the terminal device is in a handheld screen reading state, that is, it is determined that the predetermined target close to the terminal device includes a hand; when the second target feature is a physical feature, the first distance between the body corresponding to the second target feature and the terminal device can be determined immediately, If the first distance is less than the first distance threshold, it can be determined that the terminal device is in a screen-reading state placed on the body, that is, it is determined that the predetermined target close to the terminal device includes the body; when the second target feature is an object shape feature or an object material feature , It can be determined that the terminal device is in a screen-reading state placed on the object, that is, it is determined that there is no predetermined target close to the terminal device.
  • the terminal device is placed on the body in a non-screen-reading state, that is, the predetermined target close to the terminal device is determined Including the body.
  • the predetermined target close to the terminal device includes a hand.
  • the terminal device is in a non-screen-reading state placed on the object, that is, it is determined that there is no predetermined target close to the terminal device.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the determining a predetermined target based on the image may include:
  • the predetermined target is determined according to the first target feature, the second target feature, and the light information.
  • the image collected by the camera and the light information in the screen can be acquired, and the predetermined target can be determined according to the image and the light information, so as to improve the accuracy of the predetermined target determination.
  • the occlusion area in the screen can be determined according to the light information obtained by the light sensor to determine whether the terminal device is in a handheld screen reading state.
  • the first target feature in the first image and the second target feature in the second image can be identified.
  • the first target feature is a head feature
  • the first distance between the head corresponding to the first target feature and the terminal device is less than the first distance threshold
  • the occlusion area in the screen can be obtained according to the light information on the screen, and the area area and the location of the occlusion area can be determined. If the area of the area is less than the second area threshold and the area location distribution satisfies the first preset condition, it is determined that the preset target includes a hand.
  • the predetermined target includes a body.
  • the first target feature is an environmental feature
  • the second target feature is a physical feature
  • the first distance between the body corresponding to the second target feature and the terminal device is less than the first distance threshold, or when the first target feature is a physical feature
  • the predetermined target includes a body.
  • the predetermined target includes a hand.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the determining a predetermined target based on the image may include:
  • the predetermined target is determined according to the first target characteristic, the second target characteristic, and each of the impedance change values.
  • the image collected by the camera and the impedance change value of each antenna in the terminal device can be obtained, and the predetermined target can be determined according to the image and the impedance change value, so as to improve the accuracy of the predetermined target determination.
  • the terminal device when the terminal device is in a handheld screen-reading state, the user's hand generally touches a part of the terminal device, so that the impedance of the antenna corresponding to this part of the area will change greatly. Therefore, the terminal device can determine the area where the hand holds the terminal device according to the impedance change value of each antenna, so as to determine whether the terminal device is in a handheld screen reading state.
  • the first target feature in the first image and the second target feature in the second image can be identified.
  • the first target feature is a head feature
  • the first distance between the head corresponding to the first target feature and the terminal device is less than the first distance threshold
  • the target antenna is determined according to the impedance change value of each antenna in the terminal device, and the target antenna is an antenna whose impedance change value is greater than a preset change threshold. If the position distribution of the target antenna satisfies the second preset condition, it is determined that the preset target includes a hand.
  • the predetermined target includes a body.
  • the first target feature is an environmental feature
  • the second target feature is a physical feature
  • the first distance between the body corresponding to the second target feature and the terminal device is less than the first distance threshold, or when the first target feature is a physical feature
  • the predetermined target includes a body.
  • the predetermined target includes a hand.
  • the embodiment of the present application may also determine the predetermined target based on the image and the capacitance change/resistance change.
  • the terminal device can acquire the change area of the capacitance change/resistance change on the screen, and can determine the location of the change area.
  • the regional location distribution satisfies the third preset condition, it may be determined that the preset target includes a hand.
  • the third preset condition may be the same as the first preset condition, that is, the third preset condition may be the position distribution of the fingers, palms and other parts of the touch screen when the terminal device is held by the hand.
  • the embodiment of the present application may also combine the light information on the screen, the impedance change value of each antenna, and the image to determine the predetermined target.
  • the terminal device can obtain the occlusion area in the screen according to the light information on the screen, and can determine the area and location of the occlusion area.
  • the impedance change value of the antenna determines the target antenna. When the area area is less than the second area threshold, and the area location distribution meets the first preset condition, and the target antenna location distribution meets the second preset condition, it is determined that the preset target includes the hand .
  • the determining the antenna to be adjusted corresponding to the predetermined target may include:
  • the antenna to be adjusted corresponding to the predetermined target is determined according to the area of the area and the location of the area.
  • the predetermined target includes the head
  • the head will block part of the light emitted by the light source in the screen, and the blocked light can be reflected into the screen.
  • the predetermined target includes the hand
  • the user's hand will also block a part of the screen, so that the light emitted by part of the light source in the screen is blocked by the hand and reflected to Inside the screen. Therefore, after determining that the predetermined target includes the head and/or the hand, the terminal device can determine the antenna to be adjusted corresponding to the predetermined target according to the light information on the screen.
  • the determining the antenna to be adjusted corresponding to the predetermined target according to the area area and the position of the area may include:
  • the shielded area is a shielded area whose area is greater than the first area threshold and the location of the area is a preset position.
  • the first area threshold may be determined by analyzing the area of the area where the head and the terminal device are close when the user uses the terminal device close to the head. Since the head is generally close to the upper side of the terminal device during a head-to-head call, the preset position can be set to a position close to the upper edge of the terminal device or close to the front camera on the screen.
  • the determining the antenna to be adjusted corresponding to the predetermined target according to the area area and the position of the area may include:
  • the second target shielding area is determined according to the area area and the position of the area, and the second target antenna corresponding to the second target shielding area is determined as the antenna to be adjusted corresponding to the hand, and the second target
  • the shielded area is a shielded area where the area of the area is smaller than the second area threshold, and the area location distribution meets the preset condition.
  • the second area threshold may be determined by analyzing the contact area or occlusion area formed by the user's hand and the screen when the user holds the terminal device, and the second area threshold is smaller than the first area threshold in the head.
  • the preset condition can be the position distribution of fingers, palms and other parts on the screen when the terminal device is held by the hand. For example, it can be the position distribution of a single point or multiple points on the left side, right side of the screen, and/or in the middle of the screen. Wait.
  • the determining the antenna to be adjusted corresponding to the predetermined target may include:
  • the antenna to be adjusted corresponding to the predetermined target is determined according to the position information of the third target antenna.
  • the impedance of the antenna will change greatly.
  • the predetermined target includes the head
  • the terminal device may also determine the antenna to be adjusted corresponding to the predetermined target according to the impedance change value of each antenna.
  • the terminal device may also combine the light information on the screen and the impedance change value of the antenna to determine the antenna to be adjusted corresponding to the predetermined target.
  • the first target antenna and the third target antenna can be determined according to the light information on the screen and the impedance change value of each antenna, and then the first target antenna and the third target antenna can be combined. Unifiedly determine the antenna to be adjusted corresponding to the head; or the overlapping antenna of the first target antenna and the third target antenna may be determined as the antenna to be adjusted corresponding to the head.
  • the first target occlusion area can also be determined according to the light information on the screen, and then the impedance change value of the first target antenna corresponding to the first target occlusion area can be obtained, and the impedance change value can be greater than
  • the first target antenna with the preset change threshold is determined as the antenna to be adjusted corresponding to the head.
  • the terminal device when it is determined that the predetermined target includes the head according to the first image, the area between the head and the terminal device can be determined according to the light information on the screen and/or the impedance change value of the antenna. /Or the impedance change value of the antenna determines whether there is a situation where the hand is holding the terminal device, and when there is a situation where the hand is holding the terminal device, the area where the hand is held in the terminal device is determined.
  • the first antenna to be adjusted corresponding to the head can be determined according to the area close to the head and the terminal device, and the first antenna to be adjusted can be determined according to the area held by the hand in the terminal device.
  • the corresponding second antenna to be adjusted can adjust the transmit power of the first antenna to be adjusted according to the SAR of the head, so that the first antenna to be adjusted close to the head meets the head SAR index, and at the same time, the first antenna to be adjusted can be adjusted according to the SAR of the extremities.
  • the second antenna to be adjusted adjusts the transmission power, so that the second antenna to be adjusted close to the hand meets the SAR index of the limbs.
  • the screen of the terminal device is a capacitive screen or a resistive screen
  • the area will have a capacitance change or a resistance change.
  • the predetermined target includes the head or the hand, that is, when the terminal device is used close to the head or close to the hand, the head or the hand will generally contact a part of the screen area, which causes the capacitance change or generation of this area. Resistance changes. Therefore, the terminal device can also determine the antenna to be adjusted corresponding to the head or the hand according to the capacitance change and the change area of the screen or the resistance change and the change area of the screen.
  • the method may include:
  • the transmit antenna of the terminal device can be obtained, and the transmit antenna of the terminal device can be switched according to the current transmit power of each antenna, so as to change the transmit power of the terminal device.
  • the antenna is switched to an antenna with a higher transmitting power, thereby improving the communication performance of the terminal device and enhancing the user's communication experience.
  • the method may include:
  • the second distance between each antenna in the terminal device and the predetermined target can be obtained, and the second distance can be obtained according to the second distance.
  • Switch the transmitting antenna of the terminal device to switch the transmitting antenna of the terminal device to an antenna farther from the predetermined target. For example, when the head is close to the terminal device, the transmitting antenna can be switched from the antenna on the upper side of the terminal device close to the head to the antenna on the lower side of the terminal device away from the head, or switch to the antenna on the back of the terminal device.
  • the transmitting antenna can be switched from the antenna held by the hand to the antenna not held by the hand.
  • an antenna power adjustment device which is applied to a terminal device, and the device may include:
  • the predetermined target determination module is used to acquire the image collected by the camera in the terminal device, and determine a predetermined target according to the image, wherein the predetermined target includes at least one of a head, a body, and a hand, and the predetermined The first distance between the target and the terminal device is less than a first distance threshold;
  • the antenna power adjustment module is configured to determine the antenna to be adjusted corresponding to the predetermined target, and reduce the transmit power of the antenna to be adjusted according to the backoff parameter corresponding to the predetermined target.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the predetermined target determination module may include:
  • the first target determining unit is configured to identify the first target feature in the first image and the second target feature in the second image, and determine the predetermined according to the first target feature and the second target feature Target.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the predetermined target determination module may include:
  • a first feature recognition unit configured to recognize a first target feature in the first image and a second target feature in the second image
  • the light information acquiring unit is used to acquire the light information on the screen
  • the second target determining unit is configured to determine the predetermined target according to the first target feature, the second target feature, and the light information.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the predetermined target determination module may include:
  • a second feature recognition unit configured to recognize a first target feature in the first image and a second target feature in the second image
  • An impedance change acquiring unit configured to acquire the impedance change value of each antenna in the terminal device
  • the third target determination unit is configured to determine the predetermined target according to the first target feature, the second target feature, and each of the impedance change values.
  • the antenna power adjustment module may include:
  • a shielding area acquiring unit configured to acquire the shielding area in the screen according to the light information in the screen, and determine the area area and the area position of the shielding area;
  • the first antenna determining unit is configured to determine the antenna to be adjusted corresponding to the predetermined target according to the area of the area and the location of the area.
  • the first antenna determining unit is configured to obtain a first target occlusion area according to the area area and the location of the area, and correspond to the first target occlusion area
  • the first target antenna of is determined as the antenna to be adjusted corresponding to the head, and the first target occlusion area is a occlusion area whose area is greater than a first area threshold, and the location of the area is a preset position.
  • the first antenna determining unit is configured to determine a second target occlusion area according to the area area and the location of the area, and correspond to the second target occlusion area
  • the second target antenna of is determined to be the antenna to be adjusted corresponding to the hand
  • the second target shielding area is a shielding area whose area is smaller than a second area threshold, and the area location distribution meets a preset condition.
  • the antenna power adjustment module may include:
  • the position information acquiring unit is configured to determine a third target antenna according to the impedance change value of each antenna in the terminal device, and acquire position information of the third target antenna, where the impedance change value of the third target antenna is greater than a preset value Antennas with varying thresholds;
  • the second antenna determining unit is configured to determine the antenna to be adjusted corresponding to the predetermined target according to the position information of the third target antenna.
  • the apparatus may further include:
  • the first antenna switching module is used to obtain the transmit power of each antenna in the terminal device, and switch the transmit antenna of the terminal device according to the transmit power.
  • the apparatus may further include:
  • the second antenna switching module is configured to obtain a second distance between each antenna in the terminal device and the predetermined target, and switch the transmitting antenna of the terminal device according to the second distance.
  • an embodiment of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and running on the processor.
  • the processor executes the computer program, The antenna power adjustment method according to any one of the foregoing first aspects is implemented.
  • an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the implementation is as described in any one of the foregoing first aspect.
  • the embodiments of the present application provide a computer program product, which when the computer program product runs on a terminal device, causes the terminal device to execute the antenna power adjustment method described in any one of the above-mentioned first aspects.
  • the image collected by the camera can be acquired and image analysis can be performed to determine whether the predetermined target close to the terminal device is the head, body or hand, and to determine the power adjustment to be adjusted corresponding to the predetermined target
  • the antenna can thereby reduce the transmit power of the antenna to be adjusted according to the back-off parameter corresponding to the predetermined target, wherein the back-off parameter corresponding to different predetermined targets is different. That is to say, the embodiment of the application can accurately determine the type of the predetermined target close to the terminal device, and can accurately determine the antenna to be adjusted corresponding to the predetermined target, so that the emission of the antenna to be adjusted can be reduced based on different fallback parameters according to the predetermined target. On the basis of ensuring that the terminal equipment meets the SAR index, it can improve the communication performance of the terminal equipment and enhance the user’s communication experience.
  • Figure 1 is a diagram showing an example of the distribution of antennas in a terminal device
  • FIG. 2 is a schematic flowchart of an antenna power adjustment method provided by an embodiment of the present application
  • FIG. 3 is an example diagram 1 of a terminal device close to the human body according to an embodiment of the present application.
  • FIG. 4a is an example diagram 2 of a terminal device close to the human body according to an embodiment of the present application.
  • FIG. 4b is an example diagram 3 of the terminal device close to the human body according to an embodiment of the present application.
  • FIG. 4c is an example of FIG. 4 of the terminal device close to the human body according to an embodiment of the present application.
  • FIG. 5 is a hardware structure diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of an antenna power adjustment method provided by another embodiment of the present application.
  • FIG. 7 is a schematic flowchart of an antenna power adjustment method provided by another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of an antenna power adjustment device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal device to which the antenna power adjustment method provided by an embodiment of the present application is applicable.
  • FIG. 10 is a schematic diagram of a software architecture of a terminal device to which the antenna power adjustment method provided by an embodiment of the present application is applicable.
  • the term “if” can be construed as “when” or “once” or “in response to determination” or “in response to detecting “.
  • the phrase “if determined” or “if detected [described condition or event]” can be interpreted as meaning “once determined” or “in response to determination” or “once detected [described condition or event]” depending on the context ]” or “in response to detection of [condition or event described]”.
  • the antenna power adjustment method provided by the embodiments of this application can be applied to mobile phones, tablet computers, wearable devices, vehicle-mounted devices, notebook computers, ultra-mobile personal computers (UMPC), netbooks, and personal digital assistants (personal digital assistants).
  • UMPC ultra-mobile personal computers
  • PDA personal digital assistants
  • the embodiment of this application does not impose any restrictions on the specific types of terminal devices.
  • the terminal device in order to meet the wireless communication standard requirements of different frequency bands/standards, the terminal device generally installs different antennas 101 at multiple positions of the fuselage.
  • these antennas will generate electromagnetic radiation, and when the human body is close to the terminal equipment, the generated electromagnetic radiation will affect human health. Therefore, during the use of terminal equipment, when the human body approaches the terminal equipment, the transmitting power of the antenna in the terminal equipment is generally reduced, thereby reducing the SAR to meet the SAR index and reducing the impact of electromagnetic radiation on human health.
  • the proximity capacitive sensor or proximity optical sensor in the terminal device is generally used to determine whether the human body is close to the terminal device. Transmit power of all antennas.
  • the distance between the antennas in different positions in the terminal equipment and the human body is not the same, that is, the SAR generated by the antennas in different positions is not the same.
  • the antenna is close to the head, and the SAR generated to the head is generally large, while the antenna at the bottom of the terminal device is far away from the head, and the SAR generated to the head is small.
  • the uniform reduction will cause the communication performance of the terminal equipment to decline, and affect the user's communication experience.
  • the SAR generated by the terminal device also has different SAR indicators for the different parts of the human body close to the terminal device.
  • Body SAR indicators and limb SAR indicators when the limbs are close to terminal devices (such as handheld terminal devices). Head SAR indicators, body SAR indicators, and limb SAR indicators are different. Among them, limb SAR indicators can be higher than head SAR indicators and body SAR indicators. SAR indicator.
  • reducing the transmit power of all antennas based on a unified index will make the terminal device unable to meet the corresponding SAR index.
  • the transmission power of all antennas is uniformly reduced based on the head SAR index, which will make the hand close to the terminal device.
  • the transmission power of the antenna is reduced too much, which leads to a decrease in the communication performance of the terminal device, which is prone to problems such as network drop and call drop.
  • the embodiments of the present application provide an antenna power adjustment method, a terminal device, and a computer-readable storage medium.
  • an image can be collected through a camera, and then image analysis is performed to determine the proximity to the terminal.
  • the predetermined target of the device is the head, body, or hand, and the antenna to be adjusted corresponding to the predetermined target that needs power adjustment is determined, so that the transmit power of the antenna to be adjusted can be reduced according to the fallback parameter corresponding to the predetermined target, where:
  • the fallback parameters corresponding to different predetermined targets are different.
  • the embodiment of the application can accurately determine the type of the predetermined target close to the terminal device, and can accurately determine the antenna to be adjusted corresponding to the predetermined target, so that the emission of the antenna to be adjusted can be reduced based on different fallback parameters according to the predetermined target.
  • the terminal equipment meets the SAR index, it can improve the communication performance of the terminal equipment and enhance the user’s communication experience.
  • FIG. 2 is a schematic flowchart of the antenna power adjustment method provided by this embodiment.
  • the method may be applied to a terminal device.
  • the terminal device may include a camera and a processor, and the processor may include a neural network processor (neutral network processor).
  • the method may include:
  • S201 Acquire an image collected by a camera in a terminal device, and determine a predetermined target according to the image, where the predetermined target includes at least one of a head, a body, and a hand, and the first distance between the predetermined target and the terminal device is less than the first distance between the predetermined target and the terminal device. Distance threshold.
  • the terminal device may include a front camera and a rear camera.
  • the front camera can collect the first image, and can send the collected first image to the processor of the terminal device, such as the NPU
  • the rear camera can collect the second image. And can send the collected second image to the processor of the terminal device, such as the NPU.
  • the NPU can perform image recognition and analysis on the first image and/or the second image, and determine whether there are targets such as head, body, and hands in the first image and/or the second image, and then based on the relationship between the target and the terminal device. Whether the first distance between the two is smaller than the first distance threshold is used to determine whether the target is close to the terminal device, and the target close to the terminal device may be determined as a predetermined target. Among them, the first distance threshold can be determined according to actual conditions.
  • the first distance between the target and the terminal device can be determined according to the image area occupied by the target in the first image/second image. It should be understood that when the image area occupied by the target in the image is larger, the first distance between the target and the terminal device is smaller, and the target is closer to the terminal device; when the image area occupied by the target in the image is smaller, the target and The greater the first distance between terminal devices, the farther the target is from the terminal device. Specifically, the correspondence between the image area occupied by the target in the image and the first distance can be obtained through a test in advance.
  • the image area of the target in the first image/second image can be detected, and the first image between the target and the terminal device can be determined according to the image area and the corresponding relationship.
  • the state of use of the terminal device may include a post-it talk state, a handheld state, and a placement state.
  • the handheld state may include a handheld screen-reading state and a handheld non-screen-reading state.
  • the placement state may include the screen-reading state and placement on the body.
  • the post-talk state for example, in a handset call
  • the predetermined target near the terminal device may include the user's head
  • the predetermined target near the terminal device may include the user's hand
  • the predetermined target close to the terminal device may include the user's body.
  • the first image when the terminal device is in a stick-on-head talk state (for example, an earpiece talk state), the first image may include the user's partial head characteristics (for example, ear characteristics); when the terminal device is in a handheld screen-reading state, the first image One image may include the user's facial features, and the second image may include surrounding environmental characteristics; when the terminal device is in a handheld and non-reading state, both the first image and the second image may include surrounding environmental characteristics; When the terminal device is placed on the body and is in a screen-reading state, the first image may include the user's facial features, and the second image may include physical features (such as limb contour features); when the terminal device is placed on the body When reading the screen, the first image can include surrounding environment features, the second image can include physical features (such as limb contour features), or the second image can include surrounding environment features, and the first image can include the body Features (such as body contour features); when the terminal device is placed on an object and is in a screen-reading state, the first image may include the user
  • the first image can include surrounding environmental features
  • the second image can include object shape features and/or object material features
  • the second image can Including surrounding environment features
  • the first image may include object shape features and/or object material features, etc.
  • the NPU can identify the first target feature in the first image.
  • the first target feature is a local head feature, it can immediately determine the relationship between the head corresponding to the first target feature and the terminal device. If the first distance is less than the first distance threshold, it can be determined that the terminal device is in a head-to-head talk state, that is, it is determined that the predetermined target close to the terminal device includes the head.
  • the first target feature is a facial feature, it can indicate that the user is currently reading the screen of the terminal device.
  • the NPU can further identify the second target feature in the second image.
  • the second target feature is an environmental feature
  • the second target feature is a physical feature
  • the first distance between the body corresponding to the second target feature and the terminal device can be determined immediately If the first distance is less than the first distance threshold, it can be determined that the terminal device is placed on the body to read the screen, that is, it is determined that the predetermined target close to the terminal device includes the body
  • the second target feature is an object shape feature or an object material feature
  • the terminal device is placed on the body in a non-screen-reading state, that is, the predetermined target close to the terminal device is determined Including the body.
  • the predetermined target close to the terminal device includes a hand.
  • the terminal device is in a non-screen-reading state placed on the object, that is, it is determined that there is no predetermined target close to the terminal device.
  • the NPU may determine the distance between the face corresponding to the first target feature and the terminal device.
  • the second target feature is an environmental feature, and the distance between the face and the terminal device is less than or equal to the second distance threshold, it can be determined that the terminal device is in a handheld screen reading state, that is, it is determined that the predetermined target close to the terminal device includes the hand ;
  • the second target feature is a physical feature, and the distance between the face and the terminal device is greater than the second distance threshold, the first distance between the body and the terminal device corresponding to the second target feature can be determined immediately, if the first If the distance is less than the first distance threshold, it can be determined that the terminal device is in a screen-reading state placed on the body, that is, it is determined that the predetermined target close to the terminal device includes the body.
  • S202 Determine the antenna to be adjusted corresponding to the predetermined target, and reduce the transmit power of the antenna to be adjusted according to the backoff parameter corresponding to the predetermined target.
  • the NPU determines the predetermined target close to the terminal device, it can send the information of the predetermined target to the AP, and the AP can further determine the antenna to be adjusted corresponding to the predetermined target, and can reduce the to-be-adjusted parameters according to the fallback parameter corresponding to the predetermined target.
  • the transmit power of the antenna Specifically, the AP can determine the power adjustment value of the antenna to be adjusted according to the fallback parameter corresponding to the predetermined target and the current transmit power of the antenna to be adjusted, and can send the power adjustment value to the modem chip, and the modem chip can determine the power adjustment value according to the power adjustment value.
  • the backoff parameter corresponding to the predetermined target may be a power value at which the transmit power of the antenna needs to be reduced, or may be an allowable upper limit of the transmit power of the antenna, or the like.
  • the fallback parameter corresponding to the predetermined target can be determined according to the SAR indicator corresponding to the predetermined target. For example, the fallback parameter when the head is close to the terminal device can be determined according to the head SAR indicator, and the fallback parameter when the body is close to the terminal device can be determined according to the body SAR indicator.
  • the fallback parameters can be determined according to the SAR of the limbs when holding the terminal device.
  • the determination of the antenna to be adjusted and the power adjustment value performed by the AP in this embodiment is only for schematic explanation, and should not be construed as a limitation of this embodiment. Of course, other processors can also be used in this embodiment. For the determination of the antenna to be adjusted and the power adjustment value, for example, a coprocessor (CoProcessor) may also be used to determine the antenna to be adjusted and the power adjustment value.
  • a coprocessor CoProcessor
  • the terminal device when the predetermined target includes the head, that is, when the terminal device is used close to the head, the head will block some of the light emitted by the light source in the screen, and the blocked light can be used. Reflected into the screen.
  • the predetermined target when the predetermined target includes the hand, that is, when the user holds the terminal device, the user’s hand will also block some areas of the screen, so that part of the light source in the screen The emitted light is blocked by the hand and reflected into the screen. Therefore, after determining that the predetermined target includes the head and/or the hand, the terminal device can determine the antenna to be adjusted corresponding to the predetermined target according to the light information on the screen.
  • a light sensor and a screen driving chip can be arranged in the screen of the terminal device.
  • the light emitted by the light source in the screen can be reflected to the light sensor after being blocked by the head or hand.
  • the light sensor can send the acquired light information to the screen driver chip, and the screen driver chip can determine according to the light information sent by the light sensor
  • the blocked area on the screen, and the blocked area can be sent to the AP.
  • the AP determines that the predetermined target includes the head or determines that the predetermined target includes the hand, it may determine the area close to the head and the terminal device, or the area close to the hand and the terminal device according to the occlusion area.
  • the screen of the terminal device can be divided into grid areas in advance, and corresponding light sensors can be set in each grid area to obtain light information in each grid area, so that the occlusion area in the screen can be quickly determined .
  • the area area and location of the occlusion area can be determined immediately, and the first The target occluded area, the first target occluded area may be an occluded area whose area is greater than the first area threshold and the location of the area is a preset position.
  • the first area threshold may be determined by analyzing the area of the area where the head and the terminal device are close when the user uses the terminal device close to the head.
  • the preset position can be set to a position close to the upper edge of the terminal device or close to the front camera on the screen.
  • the first target shielding area is the area where the head is close to the terminal device, that is, the first target antenna corresponding to the first target shielding area is the antenna close to the head. Therefore, the first target shielding area can be The corresponding first target antenna is determined as the antenna to be adjusted corresponding to the head, and the transmit power of the antenna to be adjusted can be adjusted according to the back-off parameters corresponding to the head, so that the SAR of the antenna to be adjusted meets the SAR of the head index.
  • the hand forms discrete multi-point shielding on the sides of the screen, and/or discrete single-point or multi-point shielding on the middle of the screen. Therefore, after the predetermined target is determined to include the hand and the occlusion area in the screen is determined based on the light information obtained by the light sensor, the area and location of the occlusion area can be further determined, and the second target can be determined according to the area and location Block the area.
  • the second target shielding area may be a shielding area whose area is smaller than the second area threshold and the location distribution of the area satisfies a preset condition.
  • the preset condition can be the position distribution of fingers, palms and other parts on the screen when the terminal device is held by the hand. For example, it can be the position distribution of a single point or multiple points on the left side, right side of the screen, and/or in the middle of the screen. Wait.
  • the second target shielding area is the area where the hand is close to the terminal device. Therefore, the second target antenna corresponding to the second target shielding area can be determined as the antenna to be adjusted corresponding to the hand, and can be adjusted according to the hand
  • the backoff parameter corresponding to the part adjusts the transmit power of the antenna to be adjusted so that the SAR of the antenna to be adjusted meets the hand SAR index.
  • the second area threshold may be determined by analyzing the contact area or occlusion area formed by the user's hand and the screen when the user holds the terminal device, and the second area threshold is smaller than the first area threshold in the head.
  • the first target antenna corresponding to the first target shielding area and the second target antenna corresponding to the second target shielding area can be determined according to the mapping relationship between the screen area and the antenna, that is, the relationship between the screen area and the antenna can be established in advance.
  • the mapping relationship is stored in the terminal device. After determining the first target occlusion area or the second target occlusion area, the terminal device may determine the first target antenna corresponding to the first target occlusion area or the second target antenna corresponding to the second target occlusion area according to the mapping relationship.
  • the impedance of the antenna when a target is close to a certain antenna in the terminal device, the impedance of the antenna will change greatly.
  • the predetermined target includes the head
  • the terminal device when the terminal device is used close to the head, the head generally closes to the upper side of the terminal device, so that the impedance of the antenna close to the head changes greatly.
  • the terminal device may also determine the antenna to be adjusted corresponding to the predetermined target according to the impedance change value of each antenna.
  • a Modem chip can be set in the terminal device, and the Modem chip and the antenna can be connected through a radio frequency transmission line.
  • the Modem chip can obtain the impedance change value of each antenna in the terminal device, and the The change value and its corresponding location information are sent to the AP.
  • the AP may determine the third target antenna whose impedance change value is greater than the preset change threshold, and may determine the antenna to be adjusted corresponding to the predetermined target according to the position information of the third target antenna.
  • the preset change threshold can be determined according to actual conditions.
  • the third target antenna located at the upper edge of the terminal device may be determined as the antenna to be adjusted corresponding to the head.
  • the third target antenna located on the left side, right side, and/or lower edge of the terminal device may be determined as the antenna to be adjusted corresponding to the hand.
  • the terminal device may also combine the light information on the screen and the impedance change value of the antenna to determine the antenna to be adjusted corresponding to the predetermined target.
  • the predetermined target includes the head
  • the first target antenna and the third target antenna can be determined according to the light information on the screen and the impedance change value of each antenna, and then the first target antenna and the third target antenna can be combined.
  • the first target occlusion area can also be determined according to the light information on the screen, and then the impedance change value of the first target antenna corresponding to the first target occlusion area can be obtained, and the impedance can be changed
  • the first target antenna whose value is greater than the preset change threshold is determined as the antenna to be adjusted corresponding to the head.
  • the terminal device when it is determined that the predetermined target includes the head according to the first image, the area between the head and the terminal device can be determined according to the light information on the screen and/or the impedance change value of the antenna. /Or the impedance change value of the antenna determines whether there is a situation where the hand is holding the terminal device, and when there is a situation where the hand is holding the terminal device, the area where the hand is held in the terminal device is determined.
  • the first antenna to be adjusted corresponding to the head can be determined according to the area close to the head and the terminal device, and the first antenna to be adjusted can be determined according to the area held by the hand in the terminal device.
  • the corresponding second antenna to be adjusted can adjust the transmit power of the first antenna to be adjusted according to the SAR of the head, so that the first antenna to be adjusted close to the head meets the head SAR index, and at the same time, the first antenna to be adjusted can be adjusted according to the SAR of the extremities.
  • the second antenna to be adjusted adjusts the transmission power, so that the second antenna to be adjusted close to the hand meets the SAR index of the limbs.
  • the terminal device when the area where the head and/or hands are close to the terminal device is determined according to the light information on the screen, if the terminal device is currently in the off-screen state, it can be obtained according to the light sensor immediately before the screen is off Light information to determine the area of the head and/or hands close to the terminal device.
  • the terminal device can also determine the antenna to be adjusted corresponding to the head or the hand according to the capacitance change and the change area of the screen.
  • the antenna corresponding to the change area that conforms to the hand-held posture of a person may be determined as the antenna to be adjusted corresponding to the hand.
  • the antenna corresponding to the change area close to the upper side of the terminal device may be determined as the antenna to be adjusted corresponding to the head, and so on.
  • the screen of the terminal device is a resistive screen
  • the area will have a resistance change. Therefore, for a terminal device with a resistive screen, it can be based on the resistance change and the change area.
  • the determination principle of the resistive screen is basically the same as the determination principle of the above-mentioned capacitive screen, and will not be repeated here.
  • the predetermined target only includes the body
  • all antennas in the terminal device can be directly determined as the antennas to be adjusted corresponding to the body, so that the transmit power of the antennas to be adjusted can be uniformly reduced according to the back-off parameters corresponding to the body. , So that the SAR of the antenna to be adjusted meets the body SAR index.
  • the transmit antenna of the terminal device can be obtained, and the transmit antenna of the terminal device can be switched according to the current transmit power of each antenna to switch the terminal device
  • the transmitting antenna of the switch is switched to an antenna with a higher transmitting power, thereby improving the communication performance of the terminal device to enhance the user's communication experience.
  • a power amplifier, a radio frequency switch, a low noise amplifier and other radio frequency devices may also be connected between the modem chip and the antenna.
  • the AP can adjust the switch state of the radio frequency switch through the Modem chip to switch the transmit antenna, or can select different radio frequency paths through the Modem chip to switch the transmit antenna.
  • the second distance between each antenna in the terminal device and the predetermined target can be obtained, and the second distance can be obtained according to the first The second distance is to switch the transmitting antenna of the terminal device to switch the transmitting antenna of the terminal device to an antenna farther from the predetermined target.
  • the transmitting antenna can be switched from the antenna on the upper side of the terminal device close to the head to the antenna on the lower side of the terminal device away from the head, or switch to the antenna on the back of the terminal device.
  • the transmitting antenna can be switched from the antenna held by the hand to the antenna not held by the hand.
  • the image collected by the camera can be acquired and image analysis can be performed to determine whether the predetermined target close to the terminal device is the head, body, or hand, and to determine the power adjustment to be adjusted corresponding to the predetermined target.
  • the antenna can thereby reduce the transmit power of the antenna to be adjusted according to the back-off parameter corresponding to the predetermined target, wherein the back-off parameter corresponding to different predetermined targets is different. That is, this embodiment can accurately determine the type of the predetermined target close to the terminal device, and can accurately determine the antenna to be adjusted corresponding to the predetermined target, so that the transmit power of the antenna to be adjusted can be reduced based on different fallback parameters according to the predetermined target. , On the basis of ensuring that the terminal equipment meets the SAR indicator, improve the communication performance of the terminal equipment and enhance the user's communication experience.
  • FIG. 6 shows a schematic flowchart of the antenna power adjustment method provided in this embodiment.
  • the difference between this embodiment and the first embodiment is that in this embodiment, the image collected by the camera and the light information in the screen can be obtained, and the predetermined target can be determined according to the image and light information, so as to improve the accuracy of the predetermined target determination. sex.
  • the method may include:
  • S602 Identify the first target feature in the first image and the second target feature in the second image.
  • S601 to S603 can refer to the specific description in the foregoing S101, for the sake of brevity, the details are not repeated here.
  • S604 When the first target feature is a facial feature, obtain the occlusion area in the screen according to the light information on the screen, and determine the area area and the location of the occlusion area.
  • the first target feature is a facial feature
  • the terminal device is in the screen reading state
  • the screen reading state may include the hand-held screen reading state and the screen reading state placed on the body. And the screen reading status placed on the object.
  • the terminal device is in a handheld screen reading state
  • the user's hand will block a part of the screen, so that the light emitted by a part of the light source in the screen is blocked by the hand and reflected to the light sensor in the screen. Therefore, the occlusion area in the screen can be determined according to the light information obtained by the light sensor to determine whether the terminal device is in a handheld screen reading state.
  • the hand when the terminal device is in a handheld screen reading state, the hand will form discrete multi-point shielding on the sides of the screen, and/or will form a discrete single-point or multi-point shielding on the middle of the screen. Therefore, the light information on the screen can be acquired through the light sensor, the shielding area in the screen can be determined according to the light information, and the area area and position of the shielding area can be determined, so as to determine whether the terminal device is in a handheld screen reading according to the area area and area position state.
  • the terminal device is in a handheld screen reading state, that is, the terminal device is close to the terminal device.
  • the intended target includes hands.
  • the first preset condition may be the same as the preset condition described in Embodiment 1. That is, the first preset condition may be the position distribution of fingers, palms, etc. on the screen when the terminal device is held by the hand. For example, it may be The position distribution of single or multiple points on the left side, right side of the screen, and/or the middle of the screen, etc.
  • the terminal device when the area of the occluded area is greater than or equal to the second area threshold, or the area location distribution does not meet the first preset condition, it can be considered that the light information acquired by the light sensor is not reflected by the hand occlusion, and it can be determined
  • the terminal device is not in a handheld screen-reading state. At this time, it can be determined whether the terminal device is in the screen-reading state placed on the body or the screen-reading state placed on the object according to the second target feature in the second image collected by the rear camera.
  • the second image collected by the rear camera may include the user's physical characteristics (for example, limb contour characteristics). Therefore, when the second target feature is the physical feature of the user, it can be determined that the terminal device is in a screen-reading state placed on the body, and it can be determined that the predetermined target close to the terminal device includes the user's body.
  • the second target feature is not a user's physical feature, such as an object shape feature and/or an object material feature, it can be determined that the terminal device is in a screen-reading state placed on the object, that is, it is determined that there is no predetermined target close to the terminal device. At this time, there is no need to adjust the transmit power of the antenna in the terminal device.
  • the predetermined target includes a body.
  • S607 and S608 can be referred to the specific description in the foregoing S101, for the sake of brevity, the details are not repeated here.
  • the image collected by the camera and the light information on the screen can be acquired, and the predetermined target can be determined according to the image and light information, which can improve the accuracy of the predetermined target determination, thereby increasing the transmission power of the antenna to be adjusted. Adjust the accuracy.
  • FIG. 7 shows a schematic flowchart of the antenna power adjustment method provided in this embodiment.
  • the difference between this embodiment and the first embodiment is that in this embodiment, the image collected by the camera and the impedance change value of each antenna in the terminal device can be acquired, and the predetermined target can be determined according to the image and the impedance change value to improve The accuracy of the predetermined target determination.
  • the method may include:
  • S702 Identify the first target feature in the first image and the second target feature in the second image.
  • S701 to S703 can be referred to the specific description in the foregoing S101, for the sake of brevity, the details are not repeated here.
  • the first target feature is a facial feature
  • the terminal device when it indicates that the user is facing the screen reading, that is, the terminal device is in the screen reading state, and the screen reading state may include the hand-held screen reading state and the screen reading state placed on the body. And the screen reading status placed on the object.
  • the terminal device When the terminal device is in a handheld screen reading state, the user's hand generally touches a part of the terminal device, so that the impedance of the antenna corresponding to this part of the area will change greatly. Therefore, the terminal device can determine the area where the hand holds the terminal device according to the impedance change value of each antenna, so as to determine whether the terminal device is in a handheld screen reading state.
  • the target antenna whose impedance change value is greater than the preset change threshold in the terminal device can be determined, and the position information of the target antenna can be obtained.
  • the terminal can be determined
  • the device is in a handheld screen reading state, that is, it is determined that the predetermined target close to the terminal device includes the hand.
  • the second preset condition may be the position distribution of the antenna held by the hand when the terminal device is held by the hand.
  • the impedance change value of the antenna in the terminal device is not caused by holding the terminal device by hand, and it can be determined that the terminal device is not in the handheld screen reading mode. state. At this time, it can be determined whether the terminal device is in the screen reading state placed on the body or the screen reading state placed on the object according to the second target feature in the second image collected by the rear camera.
  • the second image collected by the rear camera may include the user's physical characteristics (for example, limb contour characteristics). Therefore, when the second target feature is the physical feature of the user, it can be determined that the terminal device is in a screen-reading state placed on the body, and it can be determined that the predetermined target close to the terminal device includes the user's body.
  • the second target feature is not a user's physical feature, such as an object shape feature and/or an object material feature, it can be determined that the terminal device is in a screen-reading state placed on the object, that is, it is determined that there is no predetermined target close to the terminal device. At this time, there is no need to adjust the transmit power of the antenna in the terminal device.
  • the predetermined target includes a body.
  • S707 and S708 can be referred to the specific description in the foregoing S101, and for the sake of brevity, they are not repeated here.
  • the image collected by the camera and the impedance change value of each antenna in the terminal device can be obtained, and the predetermined target can be determined according to the image and the impedance change value, which can improve the accuracy of the predetermined target determination, thereby improving the need to adjust The adjustment accuracy of the antenna transmit power.
  • the embodiment of the present application may also determine the predetermined target based on the image and the capacitance change/resistance change.
  • the terminal device can acquire the change area of the capacitance change/resistance change on the screen, and can determine the location of the change area.
  • the regional location distribution satisfies the third preset condition, it may be determined that the preset target includes a hand.
  • the third preset condition may be the same as the first preset condition, that is, the third preset condition may be the position distribution of the fingers, palms and other parts of the touch screen when the terminal device is held by the hand.
  • the embodiment of the present application may also combine the light information on the screen, the impedance change value of each antenna, and the image to determine the predetermined target.
  • the terminal device can obtain the occlusion area in the screen according to the light information on the screen, and can determine the area and location of the occlusion area.
  • the impedance change value of the antenna determines the target antenna.
  • the preset target includes the hand .
  • FIG. 8 shows a structural block diagram of an antenna power adjustment device provided in an embodiment of the present application. For ease of description, only parts related to the embodiment of the present application are shown.
  • the apparatus may be applied to terminal equipment, and the apparatus may include:
  • the predetermined target determination module 801 is configured to acquire an image collected by a camera in the terminal device, and determine a predetermined target according to the image, wherein the predetermined target includes at least one of a head, a body, and a hand, and The first distance between the predetermined target and the terminal device is less than a first distance threshold;
  • the antenna power adjustment module 802 is configured to determine the antenna to be adjusted corresponding to the predetermined target, and reduce the transmit power of the antenna to be adjusted according to the backoff parameter corresponding to the predetermined target.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the predetermined target determination module 801 may include:
  • the first target determining unit is configured to identify the first target feature in the first image and the second target feature in the second image, and determine the predetermined according to the first target feature and the second target feature Target.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the predetermined target determination module 801 may include:
  • a first feature recognition unit configured to recognize a first target feature in the first image and a second target feature in the second image
  • the light information acquiring unit is used to acquire the light information on the screen
  • the second target determining unit is configured to determine the predetermined target according to the first target feature, the second target feature, and the light information.
  • the image includes a first image collected by a front camera and a second image collected by a rear camera
  • the predetermined target determination module 801 may include:
  • a second feature recognition unit configured to recognize a first target feature in the first image and a second target feature in the second image
  • An impedance change acquiring unit configured to acquire the impedance change value of each antenna in the terminal device
  • the third target determination unit is configured to determine the predetermined target according to the first target feature, the second target feature, and each of the impedance change values.
  • the antenna power adjustment module 802 may include:
  • a shielding area acquiring unit configured to acquire the shielding area in the screen according to the light information in the screen, and determine the area area and the area position of the shielding area;
  • the first antenna determining unit is configured to determine the antenna to be adjusted corresponding to the predetermined target according to the area of the area and the location of the area.
  • the first antenna determining unit is configured to obtain a first target occlusion area according to the area area and the location of the area, and correspond to the first target occlusion area
  • the first target antenna of is determined as the antenna to be adjusted corresponding to the head, and the first target occlusion area is a occlusion area whose area is greater than a first area threshold, and the location of the area is a preset position.
  • the first antenna determining unit is configured to determine a second target occlusion area according to the area area and the location of the area, and correspond to the second target occlusion area
  • the second target antenna of is determined to be the antenna to be adjusted corresponding to the hand
  • the second target shielding area is a shielding area whose area is smaller than a second area threshold, and the area location distribution meets a preset condition.
  • the antenna power adjustment module 802 may include:
  • the position information acquiring unit is configured to determine a third target antenna according to the impedance change value of each antenna in the terminal device, and acquire position information of the third target antenna, where the impedance change value of the third target antenna is greater than a preset value Antennas with varying thresholds;
  • the second antenna determining unit is configured to determine the antenna to be adjusted corresponding to the predetermined target according to the position information of the third target antenna.
  • the apparatus may further include:
  • the first antenna switching module is used to obtain the transmit power of each antenna in the terminal device, and switch the transmit antenna of the terminal device according to the transmit power.
  • the apparatus may further include:
  • the second antenna switching module is configured to obtain a second distance between each antenna in the terminal device and the predetermined target, and switch the transmitting antenna of the terminal device according to the second distance.
  • FIG. 9 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, and an antenna 2.
  • Mobile communication module 150 wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone jack 170D, sensor module 180, buttons 190, motor 191, indicator 192, camera 193, display screen 194, and Subscriber identification module (subscriber identification module, SIM) card interface 195, etc.
  • SIM Subscriber identification module
  • the sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and the environment Light sensor 180L, bone conduction sensor 180M, etc.
  • the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the terminal device 100.
  • the terminal device 100 may include more or fewer components than those shown in the figure, or combine certain components, or split certain components, or arrange different components.
  • the illustrated components can be implemented in hardware, software, or a combination of software and hardware.
  • the processor 110 may include one or more processing units.
  • the processor 110 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), and an image signal processor. (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU), etc.
  • AP application processor
  • modem processor modem processor
  • GPU graphics processing unit
  • image signal processor image signal processor
  • ISP image signal processor
  • controller video codec
  • digital signal processor digital signal processor
  • DSP digital signal processor
  • NPU neural-network processing unit
  • the different processing units may be independent devices or integrated in one or more processors.
  • the controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching instructions and executing instructions.
  • a memory may also be provided in the processor 110 to store instructions and data.
  • the memory in the processor 110 is a cache memory.
  • the memory can store instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to use the instruction or data again, it can be directly called from the memory. Repeated accesses are avoided, the waiting time of the processor 110 is reduced, and the efficiency of the system is improved.
  • the processor 110 may include one or more interfaces.
  • the interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, and a universal asynchronous transmitter/receiver (universal asynchronous) interface.
  • I2C integrated circuit
  • I2S integrated circuit built-in audio
  • PCM pulse code modulation
  • PCM pulse code modulation
  • UART universal asynchronous transmitter/receiver
  • MIPI mobile industry processor interface
  • GPIO general-purpose input/output
  • SIM subscriber identity module
  • USB Universal Serial Bus
  • the I2C interface is a bidirectional synchronous serial bus, which includes a serial data line (SDA) and a serial clock line (SCL).
  • the processor 110 may include multiple sets of I2C buses.
  • the processor 110 may be coupled to the touch sensor 180K, charger, flash, camera 193, etc., respectively through different I2C bus interfaces.
  • the processor 110 may couple the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through the I2C bus interface to implement the touch function of the terminal device 100.
  • the I2S interface can be used for audio communication.
  • the processor 110 may include multiple sets of I2S buses.
  • the processor 110 may be coupled with the audio module 170 through an I2S bus to implement communication between the processor 110 and the audio module 170.
  • the audio module 170 may transmit audio signals to the wireless communication module 160 through an I2S interface, so as to realize the function of answering calls through a Bluetooth headset.
  • the PCM interface can also be used for audio communication to sample, quantize and encode analog signals.
  • the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface.
  • the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.
  • the UART interface is a universal serial data bus used for asynchronous communication.
  • the bus can be a two-way communication bus. It converts the data to be transmitted between serial communication and parallel communication.
  • the UART interface is generally used to connect the processor 110 and the wireless communication module 160.
  • the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to realize the Bluetooth function.
  • the audio module 170 may transmit audio signals to the wireless communication module 160 through a UART interface, so as to realize the function of playing music through a Bluetooth headset.
  • the MIPI interface can be used to connect the processor 110 with the display screen 194, the camera 193 and other peripheral devices.
  • the MIPI interface includes a camera serial interface (camera serial interface, CSI), a display serial interface (display serial interface, DSI), and so on.
  • the processor 110 and the camera 193 communicate through a CSI interface to implement the shooting function of the terminal device 100.
  • the processor 110 and the display screen 194 communicate through a DSI interface to realize the display function of the terminal device 100.
  • the GPIO interface can be configured through software.
  • the GPIO interface can be configured as a control signal or as a data signal.
  • the GPIO interface can be used to connect the processor 110 with the camera 193, the display screen 194, the wireless communication module 160, the audio module 170, the sensor module 180, and so on.
  • the GPIO interface can also be configured as an I2C interface, I2S interface, UART interface, MIPI interface, etc.
  • the USB interface 130 is an interface that complies with the USB standard specification, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and so on.
  • the USB interface 130 can be used to connect a charger to charge the terminal device 100, and can also be used to transfer data between the terminal device 100 and peripheral devices. It can also be used to connect earphones and play audio through earphones. This interface can also be used to connect to other terminal devices, such as AR devices.
  • the interface connection relationship between the modules illustrated in the embodiment of the present application is merely a schematic description, and does not constitute a structural limitation of the terminal device 100.
  • the terminal device 100 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.
  • the charging management module 140 is used to receive charging input from the charger.
  • the charger can be a wireless charger or a wired charger.
  • the charging management module 140 may receive the charging input of the wired charger through the USB interface 130.
  • the charging management module 140 may receive the wireless charging input through the wireless charging coil of the terminal device 100. While the charging management module 140 charges the battery 142, it can also supply power to the terminal device through the power management module 141.
  • the power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110.
  • the power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the display screen 194, the camera 193, and the wireless communication module 160.
  • the power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance).
  • the power management module 141 may also be provided in the processor 110.
  • the power management module 141 and the charging management module 140 may also be provided in the same device.
  • the wireless communication function of the terminal device 100 can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor.
  • the antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals.
  • Each antenna in the terminal device 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
  • Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network.
  • the antenna can be used in combination with a tuning switch.
  • the mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the terminal device 100.
  • the mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like.
  • the mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation.
  • the mobile communication module 150 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic waves for radiation via the antenna 1.
  • at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110.
  • at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.
  • the modem processor may include a modulator and a demodulator.
  • the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal.
  • the demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal.
  • the demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing.
  • the application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays an image or video through the display screen 194.
  • the modem processor may be an independent device.
  • the modem processor may be independent of the processor 110 and be provided in the same device as the mobile communication module 150 or other functional modules.
  • the wireless communication module 160 can provide applications on the terminal device 100, including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), and global navigation satellites.
  • WLAN wireless local area networks
  • BT Bluetooth
  • GNSS global navigation satellite system
  • FM frequency modulation
  • NFC near field communication technology
  • infrared technology infrared, IR
  • the wireless communication module 160 may be one or more devices integrating at least one communication processing module.
  • the wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110.
  • the wireless communication module 160 may also receive a signal to be sent from the processor 110, perform frequency modulation, amplify, and convert it into electromagnetic waves to radiate through the antenna 2.
  • the antenna 1 of the terminal device 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the terminal device 100 can communicate with the network and other devices through wireless communication technology.
  • the wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc.
  • the GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite-based augmentation systems (SBAS).
  • GPS global positioning system
  • GLONASS global navigation satellite system
  • BDS Beidou navigation satellite system
  • QZSS quasi-zenith satellite system
  • SBAS satellite-based augmentation systems
  • the terminal device 100 implements a display function through a GPU, a display screen 194, and an application processor.
  • the GPU is an image processing microprocessor, which is connected to the display screen 194 and the application processor.
  • the GPU is used to perform mathematical and geometric calculations and is used for graphics rendering.
  • the processor 110 may include one or more GPUs that execute program instructions to generate or change display information.
  • the display screen 194 is used to display images, videos, and the like.
  • the display screen 194 includes a display panel.
  • the display panel can adopt liquid crystal display (LCD), organic light-emitting diode (OLED), active matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode).
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • active-matrix organic light-emitting diode active-matrix organic light-emitting diode
  • emitting diode AMOLED, flexible light-emitting diode (FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (QLED), etc.
  • the terminal device 100 may include one or N display screens 194, and N is a positive integer greater than one.
  • the terminal device 100 can implement a shooting function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, and an application processor.
  • the ISP is used to process the data fed back from the camera 193. For example, when taking a picture, the shutter is opened, the light is transmitted to the photosensitive element of the camera through the lens, the light signal is converted into an electrical signal, and the photosensitive element of the camera transmits the electrical signal to the ISP for processing and is converted into an image visible to the naked eye.
  • ISP can also optimize the image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene.
  • the ISP may be provided in the camera 193.
  • the camera 193 is used to capture still images or videos.
  • the object generates an optical image through the lens and is projected to the photosensitive element.
  • the photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor.
  • CMOS complementary metal-oxide-semiconductor
  • the photosensitive element converts the optical signal into an electrical signal, and then transfers the electrical signal to the ISP to convert it into a digital image signal.
  • ISP outputs digital image signals to DSP for processing.
  • DSP converts digital image signals into standard RGB, YUV and other formats of image signals.
  • the terminal device 100 may include one or N cameras 193, and N is a positive integer greater than one.
  • Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the terminal device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.
  • Video codecs are used to compress or decompress digital video.
  • the terminal device 100 may support one or more video codecs. In this way, the terminal device 100 can play or record videos in multiple encoding formats, such as: moving picture experts group (MPEG) 1, MPEG2, MPEG3, MPEG4, and so on.
  • MPEG moving picture experts group
  • MPEG2 MPEG2, MPEG3, MPEG4, and so on.
  • NPU is a neural-network (NN) computing processor.
  • NN neural-network
  • applications such as intelligent cognition of the terminal device 100 can be implemented, such as image recognition, face recognition, voice recognition, text understanding, and so on.
  • the external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, so as to expand the storage capacity of the terminal device 100.
  • the external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example, save music, video and other files in an external memory card.
  • the internal memory 121 may be used to store computer executable program code, where the executable program code includes instructions.
  • the internal memory 121 may include a storage program area and a storage data area.
  • the storage program area can store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required by at least one function, and the like.
  • the data storage area can store data (such as audio data, phone book, etc.) created during the use of the terminal device 100.
  • the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like.
  • the processor 110 executes various functional applications and data processing of the terminal device 100 by running instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.
  • the terminal device 100 can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. For example, music playback, recording, etc.
  • the audio module 170 is used to convert digital audio information into an analog audio signal for output, and is also used to convert an analog audio input into a digital audio signal.
  • the audio module 170 can also be used to encode and decode audio signals.
  • the audio module 170 may be provided in the processor 110, or part of the functional modules of the audio module 170 may be provided in the processor 110.
  • the speaker 170A also called “speaker” is used to convert audio electrical signals into sound signals.
  • the terminal device 100 can listen to music through the speaker 170A, or listen to a hands-free call.
  • the receiver 170B also called “earpiece” is used to convert audio electrical signals into sound signals.
  • the terminal device 100 answers a call or voice message, it can receive the voice by bringing the receiver 170B close to the human ear.
  • the microphone 170C also called “microphone”, “microphone”, is used to convert sound signals into electrical signals.
  • the user can make a sound by approaching the microphone 170C through the human mouth, and input the sound signal into the microphone 170C.
  • the terminal device 100 may be provided with at least one microphone 170C.
  • the terminal device 100 may be provided with two microphones 170C, which can implement noise reduction functions in addition to collecting sound signals.
  • the terminal device 100 may also be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and realize directional recording functions.
  • the earphone interface 170D is used to connect wired earphones.
  • the earphone interface 170D may be a USB interface 130, or a 3.5mm open mobile terminal platform (OMTP) standard interface, or a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.
  • OMTP open mobile terminal platform
  • CTIA cellular telecommunications industry association
  • the pressure sensor 180A is used to sense the pressure signal and can convert the pressure signal into an electrical signal.
  • the pressure sensor 180A may be provided on the display screen 194.
  • the capacitive pressure sensor may include at least two parallel plates with conductive materials.
  • the terminal device 100 determines the intensity of the pressure according to the change in capacitance.
  • the terminal device 100 detects the intensity of the touch operation according to the pressure sensor 180A.
  • the terminal device 100 may also calculate the touched position based on the detection signal of the pressure sensor 180A.
  • touch operations that act on the same touch position but have different touch operation strengths may correspond to different operation instructions. For example: when a touch operation with a touch operation intensity less than the first pressure threshold acts on the short message application icon, an instruction to view the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, an instruction to create a new short message is executed.
  • the gyro sensor 180B may be used to determine the movement posture of the terminal device 100.
  • the angular velocity of the terminal device 100 around three axes ie, x, y, and z axes
  • the gyro sensor 180B can be used for image stabilization.
  • the gyro sensor 180B detects the shaking angle of the terminal device 100, and calculates the distance that the lens module needs to compensate according to the angle, so that the lens can counteract the shaking of the terminal device 100 through a reverse movement to achieve anti-shake.
  • the gyro sensor 180B can also be used for navigation and somatosensory game scenes.
  • the air pressure sensor 180C is used to measure air pressure.
  • the terminal device 100 calculates the altitude based on the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation.
  • the magnetic sensor 180D includes a Hall sensor.
  • the terminal device 100 may use the magnetic sensor 180D to detect the opening and closing of the flip holster.
  • the terminal device 100 can detect the opening and closing of the flip according to the magnetic sensor 180D.
  • features such as automatic unlocking of the flip cover are set.
  • the acceleration sensor 180E can detect the magnitude of the acceleration of the terminal device 100 in various directions (generally three axes). When the terminal device 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of the terminal device, applied to applications such as horizontal and vertical screen switching, pedometer and so on.
  • the terminal device 100 can measure the distance by infrared or laser. In some embodiments, when shooting a scene, the terminal device 100 may use the distance sensor 180F to measure the distance to achieve fast focusing.
  • the proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector such as a photodiode.
  • the light emitting diode may be an infrared light emitting diode.
  • the terminal device 100 emits infrared light to the outside through the light emitting diode.
  • the terminal device 100 uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the terminal device 100. When insufficient reflected light is detected, the terminal device 100 can determine that there is no object near the terminal device 100.
  • the terminal device 100 can use the proximity light sensor 180G to detect that the user holds the terminal device 100 close to the ear to talk, so as to automatically turn off the screen to save power.
  • the proximity light sensor 180G can also be used in leather case mode, and the pocket mode will automatically unlock and lock the screen.
  • the ambient light sensor 180L is used to sense the brightness of the ambient light.
  • the terminal device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived brightness of the ambient light.
  • the ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures.
  • the ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the terminal device 100 is in a pocket to prevent accidental touch.
  • the fingerprint sensor 180H is used to collect fingerprints.
  • the terminal device 100 can use the collected fingerprint characteristics to implement fingerprint unlocking, access application locks, fingerprint photographs, fingerprint answering calls, and so on.
  • the temperature sensor 180J is used to detect temperature.
  • the terminal device 100 uses the temperature detected by the temperature sensor 180J to execute a temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold value, the terminal device 100 reduces the performance of the processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection.
  • the terminal device 100 when the temperature is lower than another threshold, the terminal device 100 heats the battery 142 to avoid abnormal shutdown of the terminal device 100 due to low temperature.
  • the terminal device 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.
  • Touch sensor 180K also called “touch device”.
  • the touch sensor 180K may be disposed on the display screen 194, and the touch screen is composed of the touch sensor 180K and the display screen 194, which is also called a “touch screen”.
  • the touch sensor 180K is used to detect touch operations acting on or near it.
  • the touch sensor can pass the detected touch operation to the application processor to determine the type of touch event.
  • the visual output related to the touch operation can be provided through the display screen 194.
  • the touch sensor 180K may also be disposed on the surface of the terminal device 100, which is different from the position of the display screen 194.
  • the bone conduction sensor 180M can acquire vibration signals.
  • the bone conduction sensor 180M can obtain the vibration signal of the vibrating bone mass of the human voice.
  • the bone conduction sensor 180M can also contact the human pulse and receive the blood pressure pulse signal.
  • the bone conduction sensor 180M may also be provided in the earphone, combined with the bone conduction earphone.
  • the audio module 170 can parse the voice signal based on the vibration signal of the vibrating bone block of the voice obtained by the bone conduction sensor 180M, and realize the voice function.
  • the application processor can analyze the heart rate information based on the blood pressure beating signal obtained by the bone conduction sensor 180M, and realize the heart rate detection function.
  • the button 190 includes a power-on button, a volume button, and so on.
  • the button 190 may be a mechanical button. It can also be a touch button.
  • the terminal device 100 may receive key input, and generate key signal input related to user settings and function control of the terminal device 100.
  • the motor 191 can generate vibration prompts.
  • the motor 191 can be used for incoming call vibration notification, and can also be used for touch vibration feedback.
  • touch operations applied to different applications can correspond to different vibration feedback effects.
  • Acting on touch operations in different areas of the display screen 194, the motor 191 can also correspond to different vibration feedback effects.
  • Different application scenarios for example: time reminding, receiving information, alarm clock, games, etc.
  • the touch vibration feedback effect can also support customization.
  • the indicator 192 may be an indicator light, which may be used to indicate the charging status, power change, or to indicate messages, missed calls, notifications, and so on.
  • the SIM card interface 195 is used to connect to the SIM card.
  • the SIM card can be inserted into the SIM card interface 195 or pulled out from the SIM card interface 195 to achieve contact and separation with the terminal device 100.
  • the terminal device 100 may support 1 or N SIM card interfaces, and N is a positive integer greater than 1.
  • the SIM card interface 195 can support Nano SIM cards, Micro SIM cards, SIM cards, etc.
  • the same SIM card interface 195 can insert multiple cards at the same time. The types of the multiple cards can be the same or different.
  • the SIM card interface 195 can also be compatible with different types of SIM cards.
  • the SIM card interface 195 may also be compatible with external memory cards.
  • the terminal device 100 interacts with the network through the SIM card to implement functions such as call and data communication.
  • the terminal device 100 adopts an eSIM, that is, an embedded SIM card.
  • the eSIM card can be embedded in the terminal device 100 and cannot be separated from the terminal device 100.
  • the software system of the terminal device 100 may adopt a layered architecture, an event-driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture.
  • the embodiment of the present application takes an Android system with a layered architecture as an example to illustrate the software structure of the terminal device 100 by way of example.
  • FIG. 10 is a block diagram of the software structure of the terminal device 100 according to an embodiment of the present application.
  • the layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Communication between layers through software interface.
  • the Android system is divided into four layers, from top to bottom, the application layer, the application framework layer, the Android runtime and system library, and the kernel layer.
  • the application layer can include a series of application packages.
  • the application package may include applications such as camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, short message, etc.
  • the application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer.
  • the application framework layer includes some predefined functions.
  • the application framework layer can include a window manager, a content provider, a view system, a phone manager, a resource manager, a notification manager, and so on.
  • the window manager is used to manage window programs.
  • the window manager can obtain the size of the display screen, determine whether there is a status bar, lock the screen, take a screenshot, etc.
  • the content provider is used to store and retrieve data and make these data accessible to applications.
  • the data may include videos, images, audios, phone calls made and received, browsing history and bookmarks, phone book, etc.
  • the view system includes visual controls, such as controls that display text, controls that display pictures, and so on.
  • the view system can be used to build applications.
  • the display interface can be composed of one or more views.
  • a display interface that includes a short message notification icon may include a view that displays text and a view that displays pictures.
  • the phone manager is used to provide the communication function of the terminal device 100. For example, the management of the call status (including connecting, hanging up, etc.).
  • the resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.
  • the notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages, and it can automatically disappear after a short stay without user interaction.
  • the notification manager is used to notify download completion, message reminders, and so on.
  • the notification manager can also be a notification that appears in the status bar at the top of the system in the form of a chart or a scroll bar text, such as a notification of an application running in the background, or a notification that appears on the screen in the form of a dialog window.
  • prompt text messages in the status bar sound a prompt tone, terminal equipment vibration, flashing indicator lights, etc.
  • Android Runtime includes core libraries and virtual machines. Android runtime is responsible for the scheduling and management of the Android system.
  • the core library consists of two parts: one part is the function functions that the java language needs to call, and the other part is the core library of Android.
  • the application layer and application framework layer run in a virtual machine.
  • the virtual machine executes the java files of the application layer and the application framework layer as binary files.
  • the virtual machine is used to perform functions such as object life cycle management, stack management, thread management, security and exception management, and garbage collection.
  • the system library can include multiple functional modules. For example: surface manager (surface manager), media library (Media Libraries), three-dimensional graphics processing library (for example: OpenGL ES), 2D graphics engine (for example: SGL), etc.
  • the surface manager is used to manage the display subsystem and provides a combination of 2D and 3D layers for multiple applications.
  • the media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files.
  • the media library can support multiple audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.
  • the 3D graphics processing library is used to implement 3D graphics drawing, image rendering, synthesis, and layer processing.
  • the 2D graphics engine is a drawing engine for 2D drawing.
  • the kernel layer is the layer between hardware and software.
  • the kernel layer contains at least display driver, camera driver, audio driver, and sensor driver.
  • the corresponding hardware interrupt is sent to the kernel layer.
  • the kernel layer processes the touch operation into the original input event (including touch coordinates, time stamp of the touch operation, etc.).
  • the original input events are stored in the kernel layer.
  • the application framework layer obtains the original input event from the kernel layer and identifies the control corresponding to the input event. Taking the touch operation as a touch click operation, and the control corresponding to the click operation is the control of the camera application icon as an example, the camera application calls the interface of the application framework layer to start the camera application, and then starts the camera driver by calling the kernel layer.
  • the camera 193 captures still images or videos.
  • the embodiments of the present application also provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program can implement the steps in the foregoing method embodiments when the computer program is executed by a processor.
  • the embodiments of the present application provide a computer program product.
  • the terminal device can implement the steps in the foregoing method embodiments when executed.
  • 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.
  • the computer program can be stored in a computer-readable storage medium. When executed by the processor, the steps of the foregoing method embodiments can be implemented.
  • the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate forms.
  • the computer-readable storage medium may at least include: any entity or device capable of carrying computer program code to the device/terminal device, recording medium, computer memory, read-only memory (ROM), random access memory (random access memory, RAM), electrical carrier signals, telecommunications signals, and software distribution media.
  • ROM read-only memory
  • RAM random access memory
  • electrical carrier signals telecommunications signals
  • software distribution media For example, U disk, mobile hard disk, floppy disk or CD-ROM, etc.
  • computer-readable storage media cannot be electrical carrier signals and telecommunication signals.
  • the disclosed device/terminal device and method may be implemented in other ways.
  • the device/terminal device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units.
  • components can be combined or integrated into another system, or some features can be omitted or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Support Of Aerials (AREA)

Abstract

La présente invention, qui est applicable au domaine technique des communications, concerne en particulier un procédé d'ajustement de puissance d'antenne, un dispositif de terminal et un support de stockage lisible par ordinateur. Une image collectée par une caméra peut être acquise et soumise à une analyse d'image pour déterminer si un sujet prédéterminé à proximité du dispositif de terminal est une tête, un corps ou une main, et pour déterminer une antenne à régler qui correspond au sujet prédéterminé et qui nécessite un ajustement de puissance de sorte que la puissance d'émission de l'antenne peut être réduite selon un paramètre de repli correspondant au sujet prédéterminé, différents sujets prédéterminés correspondant à différents paramètres de repli. C'est-à-dire, dans les modes de réalisation de la présente invention, le type du sujet prédéterminé proche du dispositif de terminal peut être déterminé avec précision et l'antenne correspondant au sujet prédéterminé peut être déterminée avec précision de sorte que la puissance d'émission de l'antenne peut être réduite sur la base de différents paramètres de repli selon le sujet prédéterminé de façon à améliorer les performances de communication du dispositif de terminal et à augmenter l'expérience de communication d'un utilisateur tout en garantissant que le dispositif de terminal satisfait un indice de SAR.
PCT/CN2021/084203 2020-04-29 2021-03-30 Procédé d'ajustement de puissance d'antenne, dispositif de terminal et support de stockage WO2021218540A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010359679.9A CN113573390B (zh) 2020-04-29 2020-04-29 天线功率调节方法、终端设备及存储介质
CN202010359679.9 2020-04-29

Publications (1)

Publication Number Publication Date
WO2021218540A1 true WO2021218540A1 (fr) 2021-11-04

Family

ID=78158648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/084203 WO2021218540A1 (fr) 2020-04-29 2021-03-30 Procédé d'ajustement de puissance d'antenne, dispositif de terminal et support de stockage

Country Status (2)

Country Link
CN (1) CN113573390B (fr)
WO (1) WO2021218540A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115065767A (zh) * 2022-08-19 2022-09-16 荣耀终端有限公司 一种天线功率调节方法及其电子设备
CN115150929A (zh) * 2022-05-30 2022-10-04 荣耀终端有限公司 天线功率的调节方法、装置及可读存储介质

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114727101B (zh) * 2022-06-08 2023-01-24 荣耀终端有限公司 一种天线功率调节方法及电子设备
CN116669153B (zh) * 2022-12-09 2023-10-20 荣耀终端有限公司 发射功率回退方法、终端设备和计算机可读存储介质
CN115968019B (zh) * 2023-03-16 2023-08-01 荣耀终端有限公司 通信参数的处理方法、设备及存储介质

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120075159A1 (en) * 2010-09-29 2012-03-29 Chia-Hao Chang Antenna matching circuit control device
CN103339796A (zh) * 2010-04-13 2013-10-02 苹果公司 带有基于天线的接近度检测器的可调无线电路
US20130331046A1 (en) * 2012-06-08 2013-12-12 Lenovo (Singapore) Pte. Ltd. Controlling antenna output power
CN104640187A (zh) * 2013-11-07 2015-05-20 中兴通讯股份有限公司 发射功率控制方法及装置
CN108601073A (zh) * 2018-07-09 2018-09-28 深圳市万普拉斯科技有限公司 降低sar的方法、移动终端及计算机可读存储介质
CN109068383A (zh) * 2018-08-24 2018-12-21 维沃移动通信有限公司 一种调节天线发射功率的方法及终端设备
CN109982423A (zh) * 2019-04-15 2019-07-05 Oppo广东移动通信有限公司 天线功率调整方法、装置、存储介质及智能终端

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101722237B1 (ko) * 2010-09-28 2017-03-31 삼성전자주식회사 휴대단말기의 통신 전력 제어장치 및 방법
CN107968671A (zh) * 2017-11-23 2018-04-27 广东欧珀移动通信有限公司 天线组件、终端设备及改善天线辐射指标的方法
CN108737657B (zh) * 2018-05-18 2021-01-22 Oppo广东移动通信有限公司 天线控制方法及相关产品
CN110401473B (zh) * 2019-07-23 2022-06-03 努比亚技术有限公司 动态调整发射功率的方法、移动终端及存储介质

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103339796A (zh) * 2010-04-13 2013-10-02 苹果公司 带有基于天线的接近度检测器的可调无线电路
US20120075159A1 (en) * 2010-09-29 2012-03-29 Chia-Hao Chang Antenna matching circuit control device
US20130331046A1 (en) * 2012-06-08 2013-12-12 Lenovo (Singapore) Pte. Ltd. Controlling antenna output power
CN104640187A (zh) * 2013-11-07 2015-05-20 中兴通讯股份有限公司 发射功率控制方法及装置
CN108601073A (zh) * 2018-07-09 2018-09-28 深圳市万普拉斯科技有限公司 降低sar的方法、移动终端及计算机可读存储介质
CN109068383A (zh) * 2018-08-24 2018-12-21 维沃移动通信有限公司 一种调节天线发射功率的方法及终端设备
CN109982423A (zh) * 2019-04-15 2019-07-05 Oppo广东移动通信有限公司 天线功率调整方法、装置、存储介质及智能终端

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115150929A (zh) * 2022-05-30 2022-10-04 荣耀终端有限公司 天线功率的调节方法、装置及可读存储介质
CN115150929B (zh) * 2022-05-30 2023-07-07 荣耀终端有限公司 天线功率的调节方法、装置及可读存储介质
CN115065767A (zh) * 2022-08-19 2022-09-16 荣耀终端有限公司 一种天线功率调节方法及其电子设备

Also Published As

Publication number Publication date
CN113573390A (zh) 2021-10-29
CN113573390B (zh) 2022-10-18

Similar Documents

Publication Publication Date Title
WO2020119493A1 (fr) Procédé de réponse pour écran tactile et dispositif électronique
CN113645351B (zh) 应用界面交互方法、电子设备和计算机可读存储介质
WO2021218540A1 (fr) Procédé d'ajustement de puissance d'antenne, dispositif de terminal et support de stockage
JP7280005B2 (ja) 無線充電方法および電子デバイス
CN110956939B (zh) 调节屏幕亮度的方法及电子设备
WO2022127787A1 (fr) Procédé d'affichage d'image et dispositif électronique
CN113722058B (zh) 一种资源调用方法及电子设备
WO2020056778A1 (fr) Procédé destiné à blinder un événement tactile et dispositif électronique
WO2022001258A1 (fr) Procédé et appareil d'affichage à écrans multiples, dispositif terminal et support de stockage
CN113542580B (zh) 去除眼镜光斑的方法、装置及电子设备
WO2021218429A1 (fr) Procédé de gestion d'une fenêtre d'application, dispositif terminal et support de stockage lisible par ordinateur
WO2021164300A1 (fr) Procédé de présentation de données, dispositif de terminal et support de stockage
WO2022262492A1 (fr) Procédé et appareil de téléchargement de données, et dispositif terminal
CN110058729B (zh) 调节触摸检测的灵敏度的方法和电子设备
WO2022170856A1 (fr) Procédé d'établissement de connexion et dispositif électronique
CN116389884B (zh) 缩略图显示方法及终端设备
CN113542574A (zh) 变焦下的拍摄预览方法、终端、存储介质及电子设备
WO2022242412A1 (fr) Procédé d'arrêt d'application et dispositif associé
CN114828098B (zh) 数据传输方法和电子设备
WO2021129453A1 (fr) Procédé de capture d'écran et dispositif associé
CN113918003A (zh) 检测皮肤接触屏幕时长的方法、装置及电子设备
CN113391735A (zh) 显示形态的调整方法、装置、电子设备及存储介质
CN116048831B (zh) 一种目标信号处理方法和电子设备
CN118057858A (zh) 数据处理方法、设备和系统
CN113496766A (zh) 用户健康管理方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21795751

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21795751

Country of ref document: EP

Kind code of ref document: A1