Long-range wireless charging transmission device and method for adjusting wireless charging transmission power

Abstract

The present disclosure relates to a long-distance wireless charging transmitting device and a method for adjusting wireless charging transmitting power. The long-distance wireless charging transmitting device comprises a biological detection component, a transmitting control module, a power adjustment module and a transmitting antenna. The biological detection component is configured to determine the position of a target biological object within a detection range. The transmitting control module is configured to determine a target transmitting power according to the position of the target biological object and send the target transmitting power to the power adjustment module. The power adjustment module is configured to adjust the transmitting power of the transmitting antenna from a current power to the target transmitting power. In the embodiment, the transmitting power is adjusted according to the position of the target biological object, thereby meeting the requirements of long-distance and high-power wireless charging, and the transmitting power can also meet the safety requirements, thereby ensuring the safety of users.

Description

Technical Field

[0001] This disclosure relates to the field of wireless charging technology, and in particular to a long-distance wireless charging transmitter and a method for adjusting the wireless charging transmission power. Background Technology

[0002] Currently, with the rapid development of the information age, electronic products are being used more and more widely. Among them, portable electronic products have brought great convenience to people. However, the power stored in electronic products is limited, and they need to be charged when the power is low. Usually, charging is done by directly connecting the electronic product to the data cable. However, carrying a charging cable when traveling is very inconvenient. Therefore, wireless charging technology for electronic products has become a key research focus both domestically and internationally.

[0003] Existing wireless charging devices generally include a transmitting coil and a receiving coil for the electronic device to be charged. Power can be transferred through electromagnetic induction between the transmitting and receiving coils. However, if the receiving coil is misaligned with the transmitting coil, the charging efficiency is low, and the greater the misalignment, the lower the charging efficiency. Summary of the Invention

[0004] This disclosure provides a long-distance wireless charging transmitter and a method for adjusting the wireless charging transmission power to address the shortcomings of related technologies.

[0005] According to a first aspect of the present disclosure, a long-range wireless charging transmitter is provided, the long-range wireless charging transmitter including a bio-detection component, a transmission control module, a power adjustment module and a transmission antenna;

[0006] The biological detection component is used to determine the location of the target biological object within the detection range;

[0007] The launch control module is used to determine the target launch power based on the location of the target biological object and send it to the power adjustment module;

[0008] The power adjustment module is used to adjust the transmission power of the transmitting antenna from the current power to the target transmission power.

[0009] Optionally, the biodetection component includes at least one of the following: an infrared camera, a structured light camera, a TOF camera, and a lidar.

[0010] Optionally, the number of the biological detection components is one, and it is installed at a preset position of the long-distance wireless charging transmitter.

[0011] Optionally, the number of biological detection components is multiple, and the installation positions of the multiple biological detection components are different, so that the detection range of the multiple biological detection components covers all directions.

[0012] Optionally, the biological detection component is further configured to detect the biological characteristics of the target biological object within the detection range, the biological characteristics being used to identify the identity of the target biological object.

[0013] Optionally, the long-range wireless charging transmitter further includes a beam control module; the beam control module is connected to the transmitter control module and the power adjustment module respectively, and is used to adjust the beam shape and direction according to the control command of the transmitter control module and the target transmitter power of the power adjustment module.

[0014] Optionally, the long-range wireless charging transmitter further includes a low-power Bluetooth module; the low-power Bluetooth module is connected to the transmitting control module and the peer low-power Bluetooth module of the long-range wireless charging receiver respectively, for realizing communication between the transmitting control module and the long-range wireless charging receiver.

[0015] The low-power Bluetooth module is also connected to the biological detection component and is used to send the location of the received target biological object to the transmission control module.

[0016] Optionally, the transmission control module is further configured to determine the target transmission power based on the location of the long-range wireless charging transmitter, the location of the long-range wireless charging receiver, and the location of the target biological object; the location of the long-range wireless charging receiver is obtained through communication between the long-range wireless charging transmitter and the long-range wireless charging receiver.

[0017] According to a second aspect of the present disclosure, a method for adjusting the transmission power of wireless charging is provided, the method comprising:

[0018] Acquire the location of the long-range wireless charging transmitter and the location of the target biological object;

[0019] The target transmission power of the long-range wireless charging transmitter is determined based on the location of the long-range wireless charging transmitter and the location of the target biological object;

[0020] Adjust the transmission power of the long-distance wireless charging transmitter to the target transmission power.

[0021] Optionally, determining the target transmission power of the long-range wireless charging transmitter based on the location of the long-range wireless charging transmitter and the location of the target biological object includes:

[0022] The relative distance is determined based on the location of the long-distance wireless charging transmitter and the location of the target biological object;

[0023] If the relative distance exceeds a preset distance threshold, the maximum transmission power of the long-distance wireless charging transmitter is determined as the target transmission power.

[0024] Optionally, after determining the relative distance based on the location of the long-range wireless charging transmitter and the location of the target biological object, the method further includes:

[0025] If the relative distance is less than a preset distance threshold, the relationship table between transmission power and relative distance is invoked, and the transmission power corresponding to the relative distance is retrieved from the relationship table as the target transmission power of the long-distance wireless charging transmitter.

[0026] Optionally, the method further includes:

[0027] To locate the position of a long-range wireless charging receiver;

[0028] Determining the target transmission power of the long-range wireless charging transmitter based on the location of the long-range wireless charging transmitter and the location of the target biological object includes:

[0029] The target transmission power of the long-range wireless charging transmitter is determined based on the location of the long-range wireless charging receiver, the location of the target biological object, and the location of the long-range wireless charging transmitter.

[0030] Optionally, determining the target transmission power of the long-range wireless charging transmitter based on the location of the long-range wireless charging transmitter, the location of the long-range wireless charging receiver, and the location of the target biological object includes:

[0031] The safe range is determined based on the location of the long-distance wireless charging transmitter and the location of the long-distance wireless charging receiver;

[0032] Determine the positional relationship between the target biological object and the safety zone;

[0033] The table of correspondence between transmission power and location is called, and the transmission power corresponding to the location relationship is retrieved from the table as the target transmission power of the long-distance wireless charging transmitter.

[0034] Optionally, adjusting the transmission power of the long-range wireless charging transmitter to the target transmission power includes:

[0035] The transmission power of the long-distance wireless charging transmitter is increased or decreased by a set step size until the target transmission power is reached.

[0036] Optionally, adjusting the transmission power of the long-range wireless charging transmitter to the target transmission power includes:

[0037] Adjust the shape and / or direction of the beam of the long-range wireless charging transmitter so that the transmission power of the long-range wireless charging transmitter is the target transmission power.

[0038] Optionally, before obtaining the location of the long-range wireless charging transmitter and the location of the target biological object, the method further includes:

[0039] Check if the long-range wireless charging receiver has sent a charging request;

[0040] In response to a charging request from the long-range wireless charging receiver, the steps of obtaining the location of the long-range wireless charging transmitter and the location of the target biological object are performed.

[0041] Optionally, after adjusting the transmission power of the long-range wireless charging transmitter to the target transmission power, the method further includes:

[0042] Get the end-of-charge request sent by the long-distance wireless charging receiver;

[0043] In response to the end-of-charge request, the transmission power is stopped.

[0044] According to a third aspect of the present disclosure, an electronic device is provided, including a processor, a memory, and a long-range wireless charging transmitter; the processor reads executable instructions from the memory to implement the steps of the method described in the second aspect.

[0045] According to a fourth aspect of the present disclosure, a machine-readable storage medium is provided that stores machine-executable instructions thereon, which, when executed by a processor, implement the steps of the method described in the second aspect.

[0046] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0047] As can be seen from the above embodiments, in this embodiment, by setting a biological detection component in the long-distance wireless charging transmitter, the location of the target biological object within the detection range can be determined. The transmission control module can determine the target transmission power of the long-distance wireless charging transmitter based on the location of the target biological object, and then the power adjustment module adjusts the transmission power of the transmitting antenna to the target transmission power. Thus, in this embodiment, the transmission power is adjusted according to the location of the target biological object (e.g., a user), thereby meeting the needs of long-distance and high-power wireless charging, and also ensuring that the transmission power meets safety regulations, guaranteeing user safety. Furthermore, in this embodiment, energy is radiated to the long-distance wireless charging receiver via the transmitting antenna, thereby avoiding the problem of low charging efficiency when the transmitting and receiving coils are misaligned.

[0048] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0049] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0050] Figure 1 This is a block diagram illustrating a long-range wireless charging transmitter according to an exemplary embodiment;

[0051] Figure 2 This is a block diagram illustrating another long-range wireless charging transmitter according to an exemplary embodiment;

[0052] Figure 3 This is a block diagram illustrating yet another long-range wireless charging transmitter according to an exemplary embodiment;

[0053] Figure 4(a) is a flowchart illustrating a method for adjusting the transmission power of wireless charging according to an exemplary embodiment;

[0054] Figure 4(b) is an application scenario diagram illustrating an exemplary embodiment;

[0055] Figure 5 This is a flowchart illustrating a method for determining target transmission power according to an exemplary embodiment;

[0056] Figure 6 This is another flowchart illustrating the determination of target transmission power according to an exemplary embodiment;

[0057] Figure 7 This is a flowchart illustrating another method for adjusting the transmission power of wireless charging according to an exemplary embodiment;

[0058] Figure 8 This is a flowchart illustrating yet another method for determining target transmission power, according to an exemplary embodiment;

[0059] Figures 9(a) and 9(b) are illustrations of an application scenario according to an exemplary embodiment;

[0060] Figure 10 This is a flowchart illustrating yet another method for adjusting the transmission power of wireless charging according to an exemplary embodiment;

[0061] Figure 11 This is a flowchart illustrating yet another method for adjusting the transmission power of wireless charging according to an exemplary embodiment;

[0062] Figure 12This is a flowchart illustrating a wireless charging process according to an exemplary embodiment;

[0063] Figure 13 This is a block diagram illustrating an electronic device according to an exemplary embodiment. Detailed Implementation

[0064] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatus consistent with some aspects of this disclosure as detailed in the appended claims.

[0065] Currently, with the rapid development of the information age, electronic products are being used more and more widely. Among them, portable electronic products have brought great convenience to people. However, the power stored in electronic products is limited, and they need to be charged when the power is low. Usually, charging is done by directly connecting the electronic product to the data cable. However, carrying a charging cable when traveling is very inconvenient. Therefore, wireless charging technology for electronic products has become a key research focus both domestically and internationally.

[0066] Existing long-range wireless charging transmitters typically include a transmitting coil, and the electronic device to be charged includes a receiving coil. Power can be transferred through electromagnetic induction between the transmitting and receiving coils. However, if the receiving coil is misaligned with the transmitting coil, the charging efficiency is low, and the greater the misalignment, the lower the charging efficiency.

[0067] To address the aforementioned issues, this disclosure provides a long-range wireless charging transmitter that can be applied to various wireless charging scenarios, such as indoor environments and car interiors, for long-range wireless charging of smart terminals and IoT (Internet of Things) devices without posture requirements. The smart terminal can be a smartphone, tablet, or other device, and the IoT device can be a smart speaker, smart lamp, smart bracelet, AR device, VR device, etc. Figure 1 This is a block diagram illustrating a long-range wireless charging transmitter according to an exemplary embodiment. See also... Figure 1 A wireless charging device 100 includes a bio-detection component 101, a transmission control module 102, a power adjustment module 103, and a transmitting antenna 104.

[0068] The biological detection component 101 is used to determine the location of the target biological object within the detection range.

[0069] The launch control module 102 is used to determine the target launch power based on the location of the target biological object and send it to the power adjustment module 103.

[0070] The power adjustment module 103 is used to adjust the transmission power of the transmitting antenna 104 from the current power to the target transmission power.

[0071] In one embodiment, the bio-detection component 101 may include at least one of the following: an infrared camera, a structured light camera, a TOF camera, and a lidar. Of course, those skilled in the art may also choose other devices capable of detecting the distance between two objects, and such solutions fall within the scope of this application.

[0072] It should be noted that in this embodiment, the detection range of the biological detection component 101 can be 360-degree omnidirectional detection or directional detection. Technicians can set it according to the specific scenario, and there is no limitation here.

[0073] In one example, the number of biometric detection components 101 can be one, allowing it to be installed at a preset location on the long-range wireless charging transmitter. This preset location can be the top or side wall of the long-range wireless charging transmitter. Technicians can configure this according to specific scenarios, and no limitations are specified here.

[0074] In another example, the number of biometric detection components 101 can be multiple, allowing each component to be installed in a different location. These locations can include the top, two side walls, bottom, front (containing the display screen), and the back opposite the front of the long-range wireless charging transmitter. Each biometric detection component has a different detection range, and the detection ranges of multiple components can form a final detection range. For example, the detection range could be a 360-degree spherical detection range, covering all directions; or it could be a directional detection range, covering only a specific area. Technicians can adjust the detection range according to the specific scenario; no limitations are imposed here.

[0075] It should also be noted that in this embodiment, the biological detection component 101 can pre-store the target biological object template and the pre-trained target biological object detection algorithm. The biological detection component 101 can collect images within the detection range scene and then detect the target biological object based on the images.

[0076] In one embodiment, considering that the long-distance wireless charging transmitter is only provided to a limited number of users, the biometric detection component 101 in this embodiment can pre-store a target biological object template and a pre-trained target biological object detection algorithm. The biometric detection component 101 can extract the biological features of the target biological object within the detection range, such as facial features, ear shape, iris, etc., so that the biometric detection component 101 can determine the identity of the target biological object.

[0077] Taking an infrared camera as an example, in this embodiment, the bio-detection component 101 can emit infrared light into the detection range in real time or periodically, and then capture a three-dimensional infrared image. The bio-detection component 101 analyzes the three-dimensional infrared image to determine whether a target biological object (e.g., a user, which will be used as an example in the following description) has entered the detection range. If a user is detected, the bio-detection component 101 can determine the position of the target biological object, such as the relative distance between itself and the user, and the direction between itself and the target biological object.

[0078] For example, the biometric detection component 101 can extract the user's facial image from the image and extract facial features from the area image. It compares the facial features with a pre-stored feature template. If the similarity between the facial features and the feature template exceeds a similarity threshold, it means that the user has passed the verification, and the long-distance wireless charging transmitter can turn on wireless charging. Otherwise, the user has not passed the verification, and the long-distance wireless charging transmitter can turn off wireless charging.

[0079] In one embodiment, the transmission control module 102 can communicate with the bio-detection component 101 to obtain the location of the target biological object. Then, based on the location of the target biological object and the relative distance and direction between it and the long-distance wireless charging transmitter, the transmission control module 102 can determine the target transmission power while meeting safety standards and not affecting the user. The transmission control module 102 can be implemented using processors such as microcontrollers, digital processing modules, and FPGAs, which are not limited here.

[0080] In one embodiment, the power adjustment module 103 can adjust the transmission power of the transmitting antenna from the current power to the target transmission power based on the target transmission power sent by the transmission control module 102. The power adjustment module 103 can employ a 433MHz / 315MHz wireless transmission chip or a 250MHz to 450MHz wireless transmission chip from related technologies. When the target transmission power can be determined, the corresponding solution falls within the protection scope of this application.

[0081] In one embodiment, the long-range wireless charging transmitter may further include a beam control module. See also Figure 2The beam control module 105 can adjust the beam shape and direction according to the control commands of the transmit control module 102, which is beneficial to achieving high-efficiency point-to-point and point-to-multipoint power transmission. The beam control module 105 can be implemented using integrated circuits with beam shape and direction adjustment capabilities in related technologies, and is not limited here.

[0082] In another embodiment, the beam control module 105 can also be connected to the power adjustment module 103 to adjust the beam and direction according to the target transmission power of the power adjustment module. For example, when the target transmission power is low, the beam can be a narrow beam, and the center direction of the beam is directly facing the long-distance wireless charging receiver. Or, when the target transmission power is high, the beam width can be large, and the center direction can be offset from the long-distance wireless charging receiver.

[0083] In one embodiment, the long-range wireless charging transmitter may further include a Bluetooth Low Energy module. See also Figure 3 The Bluetooth Low Energy (BLE) module 106 can communicate with a peer BLE module (not shown) in a long-range wireless charging receiver, thereby enabling communication between the transmission control module and the long-range wireless charging receiver. For example, the BLE module can communicate with the long-range wireless charging receiver to perform one-to-one or one-to-many handshake operations, charging process control, charging power adjustment control, and location tracking of the long-range wireless charging receiver. Of course, technicians can also configure the functions of the BLE module 106 according to specific scenarios, and such solutions fall within the protection scope of this application.

[0084] In another embodiment, the transmission control module 102 can communicate with a Bluetooth Low Energy module to obtain the location of one or more long-range wireless charging receivers. Based on the locations of the long-range wireless charging transmitters and receivers, the transmission control module 102 determines a safe range, then determines the positional relationship between the target biological object's location and the safe range. Subsequently, the transmission control module 102 can access a pre-stored table of correspondence between transmission power and location, querying the table for the transmission power corresponding to the location relationship, and using this transmission power as the target transmission power for the long-range wireless charging transmitter. Then, the power adjustment module 103 in the long-range wireless charging transmitter adjusts the transmission power of the transmitting antenna from its current power to the target transmission power based on the target transmission power sent by the transmission control module 102.

[0085] In another embodiment, the Bluetooth Low Energy (BLE) module 16 can communicate with a peer BLE module (not shown) in the biometric detection component 101, and can receive the user's location and / or identity obtained by the biometric detection component 101. It should be noted that when the biometric detection component 101 is located within a long-range wireless charging transmitter, the BLE module 16 can choose not to connect to the biometric detection component 101, or it can choose to connect. When the biometric detection component 101 is not located within a long-range wireless charging transmitter, the BLE module 16 can communicate with the biometric detection component 101, thereby ensuring the detection range of the biometric detection component 101.

[0086] In this embodiment, by incorporating a bio-detection component into the long-range wireless charging transmitter, the location of the target biological object within the detection range can be determined. The transmission control module can determine the target transmission power of the long-range wireless charging transmitter based on the location of the transmitter and the target biological object. Subsequently, the power adjustment module adjusts the transmission power of the transmitting antenna to the target transmission power. Thus, this embodiment adjusts the transmission power according to the location of the target biological object, thereby meeting the requirements for long-range and high-power wireless charging, while also ensuring that the transmission power meets safety regulations and guarantees user safety. Furthermore, this embodiment radiates energy to the long-range wireless charging receiver via radio frequency through the transmitting antenna, thereby avoiding the problem of low charging efficiency when the transmitting and receiving coils are misaligned.

[0087] Based on the aforementioned long-range wireless charging transmitter, this disclosure also provides a method for adjusting the wireless charging transmission power. Figure 4(a) is a flowchart illustrating a method for adjusting the wireless charging transmission power according to an exemplary embodiment, and Figure 4(b) is an application scenario diagram illustrating an exemplary embodiment. Referring to Figures 4(a) and 4(b), a method for adjusting the wireless charging transmission power can be applied to the processor of a long-range wireless charging transmitter or a wireless charging system. The following description focuses on the processor of the long-range wireless charging transmitter as the execution entity, including steps 401 to 403, wherein:

[0088] In step 401, the location of the long-distance wireless charging transmitter and the location of the target biological object are obtained.

[0089] In one embodiment, the processor of the long-range wireless charging transmitter can obtain the location of the long-range wireless charging transmitter and the location of the target biological object, including the following methods:

[0090] In one method, the bio-detection component in the long-range wireless charging transmitter can use the transmitter's location as a reference point to detect the location of the target biological object. Then, the transmitter can communicate with a processor, sending both its own location and the target object's location to the processor, allowing the processor to obtain both information.

[0091] In method two, when the long-range wireless charging transmitter is fixed, the processor can directly read the location of the transmitter. The bio-detection component can acquire images of the detection range. Then, the bio-detection component sends the images to the processor, which can detect the target biological object and its location within the detection range based on the images, thereby obtaining the location of both the long-range wireless charging transmitter and the target biological object.

[0092] Method 3: When the long-range wireless charging transmitter is not fixed, a GPS (Global Positioning System) module can be installed in the transmitter. This GPS module can then use the detected geographical location as the transmitter's location. The transmitter can then send its own geographical location to the processor. The location of the target biological object can be obtained using either Method 1 or Method 2, which will not be elaborated upon here.

[0093] The processor can directly read the location of the long-range wireless charging transmitter. The bio-detection component can acquire images of the detection range. Then, the bio-detection component sends the images to the processor, which can detect the target biological object and its location within the detection range based on the images, thereby obtaining the location of the long-range wireless charging transmitter and the target biological object.

[0094] In step 402, the target transmission power of the long-range wireless charging transmitter is determined based on the location of the long-range wireless charging transmitter and the location of the target biological object.

[0095] In one embodiment, see Figure 5 The processor determines the relative distance between the location of the long-range wireless charging transmitter and the target biological object based on their positions (corresponding to step 501). Then, the processor compares the relative distance with a preset distance threshold. If the relative distance exceeds the threshold, the processor determines the maximum transmission power of the long-range wireless charging transmitter as the target transmission power (corresponding to step 502). See also... Figure 6If the relative distance is less than a preset distance threshold, the processor calls the relationship table between transmission power and relative distance, and queries the relationship table to find the transmission power corresponding to the relative distance as the target transmission power of the long-distance wireless charging transmitter (corresponding to step 601).

[0096] In step 403, the transmission power of the long-distance wireless charging transmitter is adjusted to the target transmission power.

[0097] In one embodiment, the processor can adjust the transmission power of the long-range wireless charging transmitter to a target transmission power, including the following methods:

[0098] In method one, the processor can increase or decrease the transmission power consumption of the long-distance wireless charging transmitter by a set step size until the transmission power consumption reaches the target transmission power. The set step size can be configured according to the specific scenario and is not limited here.

[0099] Method 2: The processor can adjust the shape and / or direction of the beam of the long-distance wireless charging transmitter so that the transmission power of the long-distance wireless charging transmitter is the target transmission power.

[0100] Thus, in this embodiment, the transmission power is adjusted according to the location of the target biological object (e.g., a user), thereby meeting the needs of long-distance and high-power wireless charging, and also ensuring that the transmission power meets safety regulations, guaranteeing user safety. Furthermore, this embodiment radiates energy to the long-distance wireless charging receiving device through the transmitting antenna, thereby avoiding the problem of low charging efficiency when the transmitting and receiving coils are misaligned.

[0101] Based on the aforementioned long-distance wireless charging transmitter, this disclosure also provides a method for adjusting the wireless charging transmission power. Figure 7 This is a flowchart illustrating a method for adjusting the transmission power of wireless charging according to an exemplary embodiment. See also... Figure 7 A method for adjusting the transmission power of wireless charging is disclosed, which can be applied to a long-range wireless charging transmitter or the processor of a long-range wireless charging transmitter. The following description focuses on the processor of the long-range wireless charging transmitter as the execution entity, and includes steps 701 to 704, wherein:

[0102] In step 701, the location of the long-distance wireless charging transmitter and the location of the target biological object are obtained.

[0103] The specific methods and principles of steps 701 and 401 are the same. For a detailed description, please refer to Figure 4(a) and the relevant content of step 401. They will not be repeated here.

[0104] In step 702, the location of the long-distance wireless charging receiver is obtained.

[0105] In one embodiment, the processor can obtain the location of the long-range wireless charging receiver in the following ways:

[0106] In method one, the long-range wireless charging transmitter can communicate with the long-range wireless charging receiver via a Bluetooth Low Energy module. By analyzing parameters such as signal strength and attenuation rate, the relative position and orientation of the long-range wireless charging receiver can be determined. The processor can then communicate with the long-range wireless charging transmitter to obtain the position and orientation of the long-range wireless charging receiver.

[0107] Method 2: The long-range wireless charging receiver can communicate with the processor. After communicating with the long-range wireless charging transmitter, the long-range wireless charging receiver determines its own position and direction and sends it to the processor. This can also achieve the solution of this application, and the corresponding solution falls within the protection scope of this application.

[0108] Method three: A GPS module can be installed in the long-range wireless charging receiver. This GPS module can then use the detected geographical location as the receiver's location. The long-range wireless charging receiver can then send its own geographical location to the processor.

[0109] In step 703, the target transmission power of the long-distance wireless charging transmitter is determined based on the location of the long-distance wireless charging transmitter, the location of the long-distance wireless charging receiver, and the location of the target biological object.

[0110] In one embodiment, see Figure 8 The processor can determine the safe range based on the location of the long-range wireless charging transmitter and the location of the long-range wireless charging receiver (corresponding to step 801). Then, the processor can determine the positional relationship between the location of the target biological object and the safe range (corresponding to step 802). After that, the processor can call a pre-set correspondence table between transmission power and position relationship, and look up the transmission power corresponding to the position relationship in the correspondence table as the target transmission power of the long-range wireless charging transmitter (corresponding to step 803).

[0111] For example, referring to Figure 9(a), the processor can obtain the positions of the long-range wireless charging transmitter A and the long-range wireless charging receiver B. The long-range wireless charging transmitter A can transmit signals in all directions or in a directional manner, while the long-range wireless charging receiver B can charge. Referring to Figure 9(b), the processor can determine the safe range C1 based on the positions of the long-range wireless charging transmitter A and the long-range wireless charging receiver B. The processor can determine the positional relationship between the user's position and the safe range. Continuing with Figure 9(b), if the user's position is D1, meaning the user is outside the safe range, the processor can use the maximum transmission power of the long-range wireless charging transmitter as the target transmission power. If the user's position is D2, meaning the user is within the safe range, the processor can look up the transmission power from the corresponding relationship table based on the positional relationship between the user and the safe range, using this as the target transmission power for the long-range wireless charging transmitter. When the long-range wireless charging transmitter transmits signals at this target transmission power, the safe range can be reduced from C1 to C2, thus placing the user outside the safe range again.

[0112] In step 704, the transmission power of the long-distance wireless charging transmitter is adjusted to the target transmission power.

[0113] The specific methods and principles of steps 704 and 403 are the same. For a detailed description, please refer to Figure 4(a) and the relevant content of step 403. They will not be repeated here.

[0114] Thus, in this embodiment, the transmission power is adjusted according to the location of the target biological object (e.g., a user), thereby meeting the needs of long-distance and high-power wireless charging, and also ensuring that the transmission power meets safety regulations, guaranteeing user safety. Furthermore, this embodiment radiates energy to the long-distance wireless charging receiving device through the transmitting antenna, thereby avoiding the problem of low charging efficiency when the transmitting and receiving coils are misaligned.

[0115] Based on the aforementioned long-distance wireless charging transmitter, this disclosure also provides a method for adjusting the wireless charging transmission power. Figure 10 This is a flowchart illustrating a method for adjusting the transmission power of wireless charging according to an exemplary embodiment. See also... Figure 10 A method for adjusting the transmission power of wireless charging is disclosed, which can be applied to a long-range wireless charging transmitter or the processor of a long-range wireless charging transmitter. The following description focuses on the processor of the long-range wireless charging transmitter as the execution entity, and includes steps 1001 to 1004, wherein:

[0116] In step 1001, it is queried whether the long-distance wireless charging receiving device has sent a charging request.

[0117] In one embodiment, the processor can poll the long-range wireless charging receiver to check for charging requests. It should be noted that when the battery level of the long-range wireless charging receiver reaches a threshold, it can send a charging request via broadcast or through a Bluetooth Low Energy module. After the processor detects a charging request, it can determine that the long-range wireless charging receiver has a charging need. If no charging request is detected, the polling continues.

[0118] In step 1002, in response to a charging request from a long-range wireless charging receiver, the location of the long-range wireless charging transmitter and the location of the target biological object are obtained.

[0119] In one embodiment, the processor can respond to a charging request sent by a long-range wireless charging receiving device and obtain the location of the long-range wireless charging transmitting device and the location of the target biological object. For details, please refer to Figure 4(a) and the relevant content of step 401, which will not be repeated here.

[0120] In step 1003, the target transmission power of the long-range wireless charging transmitter is determined based on the location of the long-range wireless charging transmitter and the location of the target biological object.

[0121] The specific methods and principles of steps 1003 and 402 are the same. For a detailed description, please refer to Figure 4(a) and the relevant content of step 402. They will not be repeated here.

[0122] In step 1004, the transmission power of the long-distance wireless charging transmitter is adjusted to the target transmission power.

[0123] The specific methods and principles of steps 1004 and 403 are the same. For a detailed description, please refer to Figure 4(a) and the relevant content of step 403. They will not be repeated here.

[0124] In one embodiment, see Figure 11 During wireless charging, the long-range wireless charging receiver can also monitor the battery level in real time. When the battery level exceeds the threshold, it can send a request to the processor to end charging. That is, the processor receives the request from the long-range wireless charging receiver (corresponding to step 1101). After receiving the request, the processor can respond to it by controlling the long-range wireless charging transmitter to stop transmitting power (corresponding to step 1102).

[0125] In addition to the beneficial effects of the above embodiments, this disclosure embodiment can ensure the reliability of wireless charging and improve the efficiency of wireless charging by interacting with a long-distance wireless charging receiving device.

[0126] Figure 12This is a wireless charging process provided in an embodiment of the present disclosure, where the processor is a processor in the transmitting device. See also... Figure 12 The long-range wireless charging transmitter can poll at least one long-range wireless charging receiver. If the receiver detects that the battery level is below a threshold, it will respond with a charging request to the transmitter. The transmitter can obtain the receiver's location through communication. Then, a biometric detection component within the transmitter detects users within its detection range. Upon detection, the transmitter determines the distance between the user and the transmitter, as well as the distance between the user and the receiver. The transmitter can then determine and adjust its transmission power accordingly. When the receiver's location is fixed, the transmitter can adjust its transmission power or beam shape and direction. When the receiver moves, the transmitter can adjust its beam to stay within the beam's range. The long-range wireless charging receiver can charge the battery and power the system. When the long-range wireless charging receiver detects that the battery level has exceeded the threshold, it can initiate a request to end the charging process. The long-range wireless charging transmitter can respond to this request by stopping its transmission power, thus completing one wireless charging cycle.

[0127] Figure 13 This is a block diagram illustrating an electronic device 1300 according to an exemplary embodiment. For example, the electronic device 1300 may be a mobile phone, tablet computer, e-book reader, multimedia playback device, wearable device, vehicle terminal, or other electronic device.

[0128] Reference Figure 13 The electronic device 1300 may include one or more of the following components: processing component 1302, memory 1304, power supply component 1306, multimedia component 1308, audio component 1310, input / output (I / O) interface 1312, sensor component 1314, and communication component 1316.

[0129] Processing component 1302 typically controls the overall operation of electronic device 1300, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1302 may include one or more processors 1320 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1302 may include one or more modules to facilitate interaction between processing component 1302 and other components. For example, processing component 1302 may include a multimedia module to facilitate interaction between multimedia component 1308 and processing component 1302. As another example, processing component 1302 may read executable instructions from memory to implement the steps of a method for adjusting wireless charging transmission power provided in the above embodiments.

[0130] Memory 1304 is configured to store various types of data to support the operation of electronic device 1300. Examples of such data include instructions for any application or method operating on electronic device 1300, contact data, phonebook data, messages, pictures, videos, etc. Memory 1304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0131] Power supply component 1306 provides power to various components of electronic device 1300. Power supply component 1306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1300.

[0132] The multimedia component 1308 includes a display screen that provides an output interface between the electronic device 1300 and the user. In some embodiments, the multimedia component 1308 includes a front-facing camera and / or a rear-facing camera. When the electronic device 1300 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0133] Audio component 1310 is configured to output and / or input audio signals. For example, audio component 1310 includes a microphone (MIC) configured to receive external audio signals when electronic device 1300 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1304 or transmitted via communication component 1316. In some embodiments, audio component 1310 also includes a speaker for outputting audio signals.

[0134] I / O interface 1312 provides an interface between processing component 1302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0135] Sensor assembly 1314 includes one or more sensors for providing state assessments of various aspects of electronic device 1300. For example, sensor assembly 1314 may detect the on / off state of electronic device 1300, the relative positioning of components such as the display and keypad of electronic device 1300, changes in position of electronic device 1300 or a component of electronic device 1300, the presence or absence of user contact with electronic device 1300, the orientation or acceleration / deceleration of electronic device 1300, and temperature changes of electronic device 1300. Sensor assembly 1314 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1314 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0136] Communication component 1316 is configured to facilitate wired or wireless communication between electronic device 1300 and other devices. Electronic device 1300 can access wireless networks based on communication standards, such as Wi-Fi, 2G, 3G, 4G, or 5G, or combinations thereof. In one exemplary embodiment, communication component 1316 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1316 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0137] In an exemplary embodiment, the electronic device 1300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0138] In an exemplary embodiment, a non-transitory machine-readable storage medium including instructions is also provided, such as a memory 1304 including instructions, which can be executed by a processor 1320 of an electronic device 1300 to complete the image processing method described above. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0139] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0140] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A long-range wireless charging transmitter, characterized in that, Includes biological detection components, a transmission control module, a power adjustment module, and a transmission antenna; The biological detection component is used to determine the location of the target biological object within the detection range; the location of the target biological object is used to obtain the relative distance and relative direction between the long-distance wireless charging transmitter and the target biological object; The launch control module is used to determine the target launch power based on the location of the target biological object and send it to the power adjustment module; The power adjustment module is used to adjust the transmission power of the transmitting antenna from the current power to the target transmission power; The number of biological detection components is multiple, and the installation positions of the multiple biological detection components are different.

2. The long-distance wireless charging transmitter according to claim 1, characterized in that, The biodetection component includes at least one of the following: an infrared camera, a structured light camera, a TOF camera, and a lidar.

3. The long-distance wireless charging transmitter according to claim 1, characterized in that, The multiple biological detection components are installed in different positions so that the detection range of the multiple biological detection components covers all directions.

4. The long-distance wireless charging transmitter according to claim 1, characterized in that, The biological detection component is also used to detect the biological characteristics of the target biological object within the detection range, and the biological characteristics are used to identify the identity of the target biological object.

5. The long-distance wireless charging transmitter according to claim 1, characterized in that, The long-range wireless charging transmitter also includes a beam control module; the beam control module is connected to the transmission control module and the power adjustment module respectively, and is used to adjust the beam shape and direction according to the control command of the transmission control module and the target transmission power of the power adjustment module.

6. The long-distance wireless charging transmitter according to claim 1, characterized in that, The long-range wireless charging transmitter also includes a low-power Bluetooth module; the low-power Bluetooth module is connected to the transmitter control module and the peer low-power Bluetooth module of the long-range wireless charging receiver respectively, and is used to realize communication between the transmitter control module and the long-range wireless charging receiver. The low-power Bluetooth module is also connected to the biological detection component and is used to send the location of the received target biological object to the transmission control module.

7. The long-distance wireless charging transmitter according to claim 6, characterized in that, The transmission control module is also used to determine the target transmission power based on the location of the long-distance wireless charging transmitter, the location of the long-distance wireless charging receiver, and the location of the target biological object. The location of the long-range wireless charging receiver is obtained through communication between the long-range wireless charging transmitter and the long-range wireless charging receiver.

8. A method for adjusting the transmission power of wireless charging, characterized in that, The method is applicable to the long-range wireless charging transmitter according to any one of claims 1 to 7, wherein the long-range wireless charging transmitter includes multiple biological detection components installed at different locations, and the multiple biological detection components are used to determine the location of a target biological object within the detection range; the method includes: The location of the long-range wireless charging transmitter and the location of the target biological object are obtained; the location of the target biological object is used to obtain the relative distance and relative direction between the long-range wireless charging transmitter and the target biological object. The target transmission power of the long-range wireless charging transmitter is determined based on the location of the long-range wireless charging transmitter and the location of the target biological object; Adjust the transmission power of the long-range wireless charging transmitter to the target transmission power; Determining the target transmission power of the long-range wireless charging transmitter based on the location of the long-range wireless charging transmitter and the location of the target biological object includes: The relative distance and relative direction are determined based on the location of the long-distance wireless charging transmitter and the location of the target biological object; If the relative distance exceeds a preset distance threshold, the maximum transmission power of the long-distance wireless charging transmitter is determined as the target transmission power.

9. The method according to claim 8, characterized in that, After determining the relative distance based on the location of the long-range wireless charging transmitter and the location of the target biological object, the method further includes: If the relative distance is less than a preset distance threshold, the relationship table between transmission power and relative distance is invoked, and the transmission power corresponding to the relative distance is retrieved from the relationship table as the target transmission power of the long-distance wireless charging transmitter.

10. The method according to claim 8, characterized in that, The method further includes: To locate the position of a long-range wireless charging receiver; Determining the target transmission power of the long-range wireless charging transmitter based on the location of the long-range wireless charging transmitter and the location of the target biological object includes: The target transmission power of the long-range wireless charging transmitter is determined based on the location of the long-range wireless charging receiver, the location of the target biological object, and the location of the long-range wireless charging transmitter.

11. The method according to claim 10, characterized in that, Determining the target transmission power of the long-range wireless charging transmitter based on the location of the long-range wireless charging receiver and the location of the target biological object includes: The safe range is determined based on the location of the long-distance wireless charging transmitter and the location of the long-distance wireless charging receiver; Determine the positional relationship between the target biological object and the safety zone; The table of correspondence between transmission power and location is called, and the transmission power corresponding to the location relationship is retrieved from the table as the target transmission power of the long-distance wireless charging transmitter.

12. The method according to claim 8, characterized in that, Adjusting the transmission power of the long-range wireless charging transmitter to the target transmission power includes: The transmission power of the long-distance wireless charging transmitter is increased or decreased by a set step size until the target transmission power is reached.

13. The method according to claim 8, characterized in that, Adjusting the transmission power of the long-range wireless charging transmitter to the target transmission power includes: Adjust the shape and / or direction of the beam of the long-range wireless charging transmitter so that the transmission power of the long-range wireless charging transmitter is the target transmission power.

14. The method according to claim 8, characterized in that, Before obtaining the location of the long-range wireless charging transmitter and the location of the target biological object, the method further includes: Check if the long-range wireless charging receiver has sent a charging request; In response to a charging request from the long-range wireless charging receiver, the steps of obtaining the location of the long-range wireless charging transmitter and the location of the target biological object are performed.

15. The method according to claim 8, characterized in that, After adjusting the transmission power of the long-range wireless charging transmitter to the target transmission power, the method further includes: Get the end-of-charge request sent by the long-distance wireless charging receiver; In response to the end-of-charge request, the transmission power is stopped.

16. A long-range wireless charging system, characterized in that, The device includes a long-range wireless charging transmitter and a long-range wireless charging receiver as described in any one of claims 1 to 7, wherein the long-range wireless charging transmitter is used to adjust to a target transmission power to charge the long-range wireless charging receiver.

17. An electronic device, characterized in that, The method includes a processor, a memory, and a long-range wireless charging transmitter; the processor reads executable instructions from the memory to implement the steps of the method according to any one of claims 8 to 15.

18. A machine-readable storage medium having machine-executable instructions stored thereon, characterized in that, When executed by the processor, this instruction implements the steps of the method according to any one of claims 8 to 15.

Images