Wireless charging stand and control method thereof
By collecting the outline information of the device to be charged on the sensing panel of the wireless charging base, planning and controlling the movement path of the charging mechanism, the problem that the existing wireless charging base cannot charge when the device deviates too far, and achieves fast positioning and efficient charging.
Patent Information
- Application Number
- CN202210163246.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-02-22
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2042-02-22
AI Technical Summary
The existing wireless charging stand cannot charge when the wireless coil of the device to be charged is too far away from the wireless coil of the charging stand.
By collecting the outline information of the device to be charged on the sensing panel of the wireless charging base, planning the movement path of the charging mechanism, and controlling the movement of the charging mechanism to the charging coil position of the device to be charged to achieve rapid positioning and charging.
It improves the charging response speed of the wireless charging stand and is suitable for various types of devices to be charged, including special types such as folding mobile phones and reel mobile phones.
Smart Images

Figure CN114465365B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of electronic technology, and in particular to a wireless charging stand and a control method thereof. Background Art
[0002] The current wireless charging station uses a wireless coil to charge the device to be charged. When the wireless coil of the device to be charged is aligned with the wireless coil of the wireless charging station, wireless charging can be achieved. However, when the wireless coil of the device to be charged deviates too far from the wireless coil of the wireless charging station, the wireless coil of the wireless charging station cannot charge the device to be charged. Summary of the invention
[0003] The embodiment of the present application provides a wireless charging stand and a control method thereof, which can improve the charging response speed of the wireless charging stand.
[0004] The present application provides a control method for a wireless charging stand, wherein the wireless charging stand comprises a stand body and a charging mechanism, wherein the stand body comprises a sensing panel, and the sensing panel is used to carry a device to be charged and collect contour information of the device to be charged; the charging mechanism can move within the stand body;
[0005] The method comprises:
[0006] Controlling the sensing panel to collect contour information of a device to be charged placed on the sensing panel;
[0007] Planning a moving path of the charging mechanism according to the profile information of the device to be charged to obtain a target moving path;
[0008] The charging mechanism is controlled to move according to the target moving path.
[0009] The present application provides a wireless charging stand, comprising:
[0010] The seat body includes a sensing panel, and the sensing panel is used to carry the device to be charged and collect the contour information of the device to be charged;
[0011] A charging mechanism movable within the seat; and
[0012] The controller is connected to the sensing panel and the charging mechanism respectively, and is configured to: plan a moving path of the charging mechanism according to the contour information of the device to be charged collected by the sensing panel, and control the charging mechanism to move according to the planned moving path.
[0013] The embodiment of the present application can plan the moving path of the charging mechanism according to the contour information of the device to be charged, and control the charging mechanism to move according to the planned moving path, so as to locate the charging coil of the device to be charged as soon as possible and charge it. Compared with blindly scanning the entire area of the device to be charged, the embodiment of the present application can quickly locate the optimal charging position, thereby improving the charging response speed of the wireless charging stand. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.
[0015] Figure 1 A schematic diagram of an application scenario of the wireless charging stand provided in an embodiment of the present application.
[0016] Figure 2 for Figure 1 A second structural schematic diagram of a wireless charging stand is shown.
[0017] Figure 3 for Figure 1 A third structural schematic diagram of the wireless charging stand is shown.
[0018] Figure 4 A first flow chart of a control method for a wireless charging stand provided in an embodiment of the present application.
[0019] Figure 5 A second flow chart of the control method of the wireless charging stand provided in an embodiment of the present application.
[0020] Figure 6 A schematic diagram of a first target movement path of the charging mechanism provided in an embodiment of the present application.
[0021] Figure 7 A schematic diagram of a second target movement path of the charging mechanism provided in an embodiment of the present application.
[0022] Figure 8 A schematic diagram of a third target movement path of the charging mechanism provided in an embodiment of the present application.
[0023] Fig. 9 A schematic diagram of a fourth target movement path of the charging mechanism provided in an embodiment of the present application.
[0024] Fig.10 A third flow chart of the control method of the wireless charging stand provided in an embodiment of the present application.
[0025] Fig.11 A fourth flow chart of the control method of the wireless charging stand provided in an embodiment of the present application.
[0026] Fig.12 A schematic diagram of the first structure of a device to be charged provided in an embodiment of the present application.
[0027] Fig.13 A second structural schematic diagram of a device to be charged provided in an embodiment of the present application. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0029] See also Figure 1 , Figure 1 Schematic diagram of application scenarios of the wireless charging stand provided in an embodiment of the present application. The wireless charging stand 20 can charge the device to be charged 10, which can be a computing device such as a laptop computer, a computer monitor containing an embedded computer, a tablet computer, a cellular phone, a media player, or other handheld or portable devices to be charged, smaller devices (such as wristwatch devices, hanging devices, headphones or earpiece devices, devices embedded in glasses or other devices worn on the user's head, or other wearable or miniature devices), televisions, computer displays that do not contain embedded computers, gaming devices, navigation devices, embedded systems (such as systems in which the device to be charged with a display is installed in a kiosk or a car), devices that implement the functions of two or more of these devices, or other devices to be charged. Figure 1 In the exemplary configuration, the device to be charged 10 is a portable device, such as a cellular phone, a media player, a tablet computer, or other portable device with a battery. It should be noted that, Figure 1 These examples are for illustrative purposes only.
[0030] The wireless charging stand 20 may include a stand body 200, a charging mechanism 400 and a controller 600. The charging mechanism 400 and the controller 600 are both accommodated in the stand body 200, and the charging mechanism 400 can move in the stand body 200. The controller 600 is connected to the charging mechanism 400 to control the charging mechanism 400.
[0031] The seat 200 may include a body 220 and a sensing panel 240, wherein the body 220 may have a storage space, and the storage space may accommodate other components of the wireless charging seat 20, such as a charging mechanism 400 and a controller 600. The sensing panel 240 is covered on the body 220, and the sensing panel 240 may carry the device to be charged 10. Moreover, when the device to be charged 10 is placed on the sensing panel 240, the sensing panel 240 may collect information of the device to be charged 10 placed thereon, and collect contour information of the device to be charged 10. The contour information may include multiple position coordinate points of the external contour of the device to be charged 10 and the external contour shape.
[0032] The charging mechanism 400 can charge the device 10 to be charged placed on the sensing panel 240. The controller 600 can also be connected to the sensing panel 240. The controller 600 can plan the moving path of the charging mechanism 400 according to the contour information of the device 10 to be charged collected by the sensing panel 240, and control the charging mechanism 400 to move according to the planned moving path. Exemplarily, the device 10 to be charged is rectangular. When the user places the charging device 10 on the sensing panel 240, the sensing panel 240 collects the rectangular contour of the device 10 to be charged placed thereon to obtain a plurality of contour position coordinate points and contour shapes. The controller 600 plans the moving path of the charging mechanism 400 based on the plurality of contour position coordinate points and contour shapes. When the path planning is completed, the charging mechanism 400 is controlled to move according to the planned moving path, so that the charging mechanism 400 can move to the target position and cooperate with the device 10 to be charged to charge it.
[0033] In actual applications, the form of the device to be charged 10 is becoming more and more diverse, such as foldable phones, roll-up phones, etc. Generally speaking, the charging coils of most devices to be charged 10 are set at the center of the device to be charged 10. However, due to the continuous emergence of special forms of devices to be charged such as foldable phones or roll-up phones, the position of their charging coils is not placed at the center of the device. If the charging coil of the wireless charger is still directly moved to the center of the device, charging may fail.
[0034] Based on this, the embodiment of the present application starts from the actual application, plans the moving path of the charging mechanism 400 according to the contour information of the device to be charged 10, and controls the charging mechanism 400 to move according to the planned moving path, locates the charging coil of the device to be charged 10 as soon as possible, and charges it. Compared with directly moving the charging mechanism 400 to the center position of the device to be charged 10, the wireless charging stand 20 of the embodiment of the present application can be applied to special devices including folding mobile phones or scroll mobile phones, and its application range is wider. Moreover, compared with blindly scanning the entire area of the device to be charged 10, the embodiment of the present application can quickly locate the better charging position, thereby improving the charging response speed of the wireless charging stand 20.
[0035] When the charging mechanism 400 moves according to the planned moving path, the controller 600 can monitor the charging current of the charging mechanism 400. When the charging current is greater than the threshold, the controller 600 can control the charging mechanism 400 to stop moving, so that the charging mechanism 400 charges the device 10 to be charged with a larger charging current. The threshold value can be a preset value, for example, the threshold value can be set to the charging current released when the charging mechanism 400 is aligned with the device 10 to be charged.
[0036] See also Figure 2 , Figure 2 for Figure 1 The second structural schematic diagram of the wireless charging stand is shown. The charging mechanism 400 may include a moving mechanism 420 and a charging coil 440. The moving mechanism 420 may move in the seat body 200. The charging coil 440 is disposed on the moving mechanism 420. When the moving mechanism 420 moves, the charging coil 440 may be driven to move. The moving mechanism 420 may drive the charging coil 440 to move by a screw drive, a gear drive, or a speed belt drive.
[0037] Exemplarily, the moving mechanism 420 of the embodiment of the present application may include a first moving component 422 and a second moving component 424, the first moving component 422 and the second moving component 424 may move relative to each other, and the charging coil 440 may be movably disposed on the second moving component 424. The moving direction of the second moving component 424 relative to the first moving component 422 intersects with the moving direction of the charging coil 440 relative to the second moving component 424, and the angle between them may be an acute angle, a right angle, or an obtuse angle. Exemplarily, the moving direction of the second moving component 424 relative to the first moving component 422 intersects with the moving direction of the charging coil 440 relative to the second moving component 424 and is perpendicular to each other.
[0038] It can be understood that the moving direction of the second moving component 424 relative to the first moving component 422 is the X-axis direction, and the moving direction of the charging coil 440 relative to the second moving component 424 is the Y-axis direction. Therefore, the first moving component 422, the second moving component 424 and the charging coil 440 can move according to the multiple coordinate positions included in the moving path to move from the initial position to the target position.
[0039] It should be noted that the moving direction of the second moving component 424 relative to the first moving component 422 is the Y-axis direction, and the moving direction of the charging coil 440 relative to the second moving component 424 is the X-axis direction.
[0040] The first moving assembly 422 may include a first motor, a first screw and a first connecting piece. The first motor is connected to the first screw to drive the first screw to rotate. The second connecting piece is connected to the second screw. When the first screw rotates, it can drive the first connecting piece to move back and forth along the first screw. The second moving assembly 424 may include a second motor, a second screw and a second connecting piece. The second motor is connected to the second screw to drive the second screw to rotate. The second screw is connected to the first connecting piece so that the second screw can move with the first connecting piece. The second connecting piece is connected to the second screw. When the second screw rotates, it can drive the second connecting piece to move back and forth along the second screw. The charging coil 440 is arranged on the second connecting piece to move with the second connecting piece.
[0041] See also Figure 3 , Figure 3 for Figure 1 The third structural schematic diagram of the wireless charging stand is shown. The sensing panel 240 may include a carrier plate 242 and a plurality of pressure sensors 244, and the plurality of pressure sensors 244 may be arranged on one side of the carrier plate 242. Exemplarily, the carrier plate 242 includes a top surface 2422 and a bottom surface 2424, the top surface 2422 and the bottom surface 2424 are arranged opposite to each other, and a plurality of pressure sensors 244 are arranged in an array on the bottom surface 2424, and the top surface 2422 may carry the device 10 to be charged. When the device 10 to be charged is placed on the top surface 2422, the plurality of pressure sensors 244 located on the bottom surface 2424 sense the pressure change and output the coordinate position information of the device 10 to be charged to the controller 600. After the controller 600 obtains the coordinate position information of the device 10 to be charged, the coordinate position information is processed to obtain the parameter information of the device 10 to be charged. For example, when the collected outline shape of the device to be charged 10 is a rectangle, the parameter information may be the length information of each side of the device to be charged 10; when the collected outline shape of the device to be charged 10 is a circle, the parameter information may be the diameter of the device to be charged 10.
[0042] The following is a description from the perspective of the control method of the wireless charging stand, combined with Figure 3 and Figure 4 As shown, Figure 4 A first flow chart of a control method for a wireless charging stand provided in an embodiment of the present application.
[0043] 101 , controlling the sensing panel to collect contour information of a device to be charged placed on the sensing panel.
[0044] 102, planning a moving path of the charging mechanism according to the profile information of the device to be charged to obtain a target moving path;
[0045] 103 , controlling the charging mechanism to move according to the target moving path.
[0046] In the embodiment of the present application, the device to be charged 10 is specifically described by taking a folding mobile phone as an example. First, when the user places the folding mobile phone on the carrier plate 242, the pressure sensor located below the folding mobile phone will feel the pressure change, and the contour information of the folding mobile phone is collected according to the pressure change. The contour information may include multiple position coordinate points and the external contour shape of the external contour of the folding mobile phone. According to the contour information, the moving path of the charging mechanism 400 can be planned to obtain the target moving path. After obtaining the target moving path, the charging mechanism 400 can be controlled to move according to the target moving path.
[0047] like Figure 5 As shown, Figure 5 A second flow chart of the control method of the wireless charging stand provided in an embodiment of the present application, wherein "102, planning the moving path of the charging mechanism according to the profile information of the device to be charged to obtain a target moving path" may include:
[0048] 1021, calculating the area of the device to be charged and the moving starting point of the charging coil according to the contour information of the device to be charged;
[0049] 1022, determining whether the area of the device to be charged is larger than the area of the charging coil;
[0050] 1023: If it is greater than, path planning is performed according to the moving starting point of the charging coil and the preset moving direction to obtain the target moving path.
[0051] When the controller 600 obtains the contour information of the foldable phone, the contour information can be processed to obtain the area of the foldable phone and the moving starting point of the charging mechanism 400. The moving starting point can be the center position of the outer contour of the foldable phone, the position of any vertex in the outer contour of the foldable phone, the midpoint position of any side in the outer contour of the foldable phone, or any other coordinate position.
[0052] After the controller 600 calculates the area of the foldable phone, it compares the area of the foldable phone with the pre-stored area of the charging coil 440. If the area of the foldable phone is larger than the area of the charging coil 440, the controller 600 performs path planning based on the moving starting point and the preset moving direction of the charging coil 440 to obtain the target moving path. The embodiment of the present application takes the center position of the outer contour of the foldable phone as an example. The target moving path can be planned by taking the center position of the foldable phone as the starting point and the X-axis direction as the preset direction, such as Figure 6 As shown, Figure 6 A schematic diagram of a first target movement path of the charging mechanism provided in an embodiment of the present application.
[0053] In other embodiments, a vertex of the foldable mobile phone can be used as a starting point, and the diagonal direction of the foldable mobile phone can be used as a preset direction for path planning to obtain a target moving path, such as Figure 7 As shown, Figure 7 A schematic diagram of a second target movement path of the charging mechanism provided in an embodiment of the present application.
[0054] In other embodiments, the preset moving direction may be multiple, for example, multiple directions radiating from the center position of the folded mobile phone to the surrounding areas are the preset directions, such as Figure 8 and Fig. 9 As shown, Figure 8 A schematic diagram of a third target movement path of the charging mechanism provided in an embodiment of the present application, Fig. 9 A schematic diagram of a fourth target movement path of the charging mechanism provided in an embodiment of the present application.
[0055] Combination Figure 8 and Fig. 9 As shown, when there are multiple preset directions, there may be multiple moving paths. In this case, the multiple moving paths can be analyzed to obtain the optimal moving path.
[0056] Exemplarily, performing path planning according to the moving starting point and the preset moving direction of the charging coil to obtain the target moving path may include:
[0057] Analyzing the movement paths of the charging mechanism when it moves in the plurality of preset movement directions in turn to obtain a plurality of movement paths;
[0058] Calculate the shortest path according to the multiple moving paths;
[0059] The shortest path is used as the target moving path.
[0060] It is understandable that when there are multiple preset directions, multiple moving paths can be calculated, the total displacement of each moving path can be calculated, and the one with the shortest total displacement can be selected as the target moving path to increase the speed of finding the best charging position.
[0061] like Fig.10 As shown, Fig.10 A third flow chart of the control method of the wireless charging stand provided in an embodiment of the present application, wherein, after "1023, if greater than, performing path planning according to the moving starting point and the preset moving direction of the charging coil to obtain the target moving path", it also includes:
[0062] 1024, if it is less than, calculating the center position of the device to be charged according to the contour information of the device to be charged;
[0063] 1025, calculating multiple moving paths from the current position of the charging mechanism to the center position of the device to be charged;
[0064] 1026. Use the shortest path among the multiple moving paths as the target moving path.
[0065] It is understandable that when the area of the foldable phone is smaller than the area of the charging coil 440, the charging range of the charging coil 440 can completely cover the entire foldable phone, and the foldable phone can cooperate with the charging coil 440 of the charging mechanism 400 to achieve charging no matter where it is placed on the sensing panel 240. At this time, the charging coil 440 is moved to the center of the foldable phone so that the foldable phone can be completely placed in the charging range of the charging coil 440. Since there are multiple moving paths for the charging coil 440 to move from the current position to the center of the foldable phone, in order to improve the charging response speed of the charging coil 440, the total displacement of the multiple moving paths can be calculated to select the moving path with the smallest total displacement as the target moving path. After the target moving path is determined, the moving mechanism 420 is controlled to drive the charging coil 440 to move to the target position according to the target moving path.
[0066] Combination Figure 3 and Fig.11 As shown, Fig.11 A fourth flow chart of a control method of a wireless charging stand provided in an embodiment of the present application, wherein “101, controlling the sensing panel to collect contour information of a device to be charged placed on the sensing panel” may include:
[0067] 1011, controlling the multiple pressure sensors to collect pressure change information when the device to be charged is placed on the sensing panel;
[0068] 1012, analyzing the pressure change information to obtain coordinate position information of the device to be charged;
[0069] 1013 : Process the coordinate position information of the device to be charged to obtain contour information of the device to be charged.
[0070] In the embodiment of the present application, when the device 20 to be charged is placed on the carrier plate 242, the controller 600 can control the multiple pressure sensors 244 located below the carrier plate 242 to start and collect the pressure change information when the device 10 to be charged is placed on the carrier plate 242, and send the pressure change information to the controller 600. After receiving the pressure change information, the controller 600 analyzes the pressure change information to obtain the coordinate position information of the device 10 to be charged. The controller 600 can obtain the contour information of the device 10 to be charged by processing the coordinate position information.
[0071] In the related art, distance sensors (such as optical distance sensors, infrared distance sensors and ultrasonic distance sensors) are usually used to collect the external contour information of the charging device 10. The distance sensor determines the distance relationship through the emission and reception of a certain substance (such as infrared light, ultrasonic wave) to obtain the position information of the charging device 10. If the number of distance sensors is too small, there may be scanning blind spots and inaccurate information collection. In order to avoid all blind spots, a large number of distance sensors need to be set. When the number of distance sensors is too large, the scanning ranges will partially overlap, resulting in too much information being obtained, and the processing speed is slow.
[0072] In the embodiment of the present application, multiple pressure sensors 244 laid on the bottom surface 2424 of the carrier plate 242 are used to collect the contour information of the device to be charged 10. When the device to be charged 10 is placed on the carrier plate 242, all pressure sensors located on the device to be charged 10 will produce pressure changes, which can more accurately obtain the contour information of the device to be charged 10. Moreover, the pressure change corresponds to the coordinate position of the device to be charged 10 one by one, and the data correspondence is relatively good, which is convenient for improving the data processing speed, thereby improving the charging response of the wireless charging stand 20.
[0073] See also Fig.12 , Fig.12 A schematic diagram of the first structure of a device to be charged provided in an embodiment of the present application. The device to be charged may include a housing 11, a display screen 12, a circuit board 13, a battery 14, and a second coil 15. It should be noted that the device to be charged 10 is not limited to the above content, for example, the device to be charged 10 may also include a camera.
[0074] The housing 11 may form the outer contour of the device to be charged 10. In some embodiments, the housing 11 may be a metal housing, such as a magnesium alloy, stainless steel or other metal. It should be noted that the material of the housing 11 in the embodiment of the present application is not limited thereto, and other methods may also be used, for example, the housing 11 may be a plastic housing, a ceramic housing, a glass housing, etc.
[0075] Among them, the display screen 12 is installed in the housing 11. The display screen 12 is electrically connected to the circuit board 13 to form a display surface of the device to be charged 10. In some embodiments, a non-display area can be set on the display surface of the device to be charged 10, for example: the top or / and bottom of the device to be charged 10 can form a non-display area, that is, the device to be charged 10 forms a non-display area on the upper part or / and the lower part of the display screen 12, and the device to be charged 10 can install devices such as cameras and receivers in the non-display area. It should be noted that the display surface of the device to be charged 10 may not be provided with a non-display area, that is, the display screen 12 can be a full screen. The display screen can be laid on the entire display surface of the device to be charged 10, so that the display screen can be displayed in full screen on the display surface of the device to be charged 10.
[0076] It should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0077] The display screen 12 may be in a regular shape, such as a cuboid structure or a rounded rectangular structure, or may be in an irregular shape.
[0078] The display screen 12 may be a liquid crystal display, an organic light emitting diode display, an electronic ink display, a plasma display, or a display using other display technologies, or a combination of these. The display screen 12 may include a touch sensor array (i.e., the display screen 12 may be a touch screen). The touch sensor may be a capacitive touch sensor formed by an array of transparent touch sensor electrodes (e.g., indium tin oxide (ITO) electrodes), or may be a touch sensor formed using other touch technologies, such as sonic touch, pressure-sensitive touch, resistive touch, optical touch, etc., which is not limited in the embodiments of the present application.
[0079] It should be noted that, in some embodiments, a cover plate may be provided on the display screen 12, and the cover plate may cover the display screen 12 to protect the display screen 12. The cover plate may be a transparent glass cover plate so that the display screen 12 can be displayed through the cover plate. In some embodiments, the cover plate may be a glass cover plate made of a material such as sapphire.
[0080] In some embodiments, after the display screen 12 is installed on the housing 11, a storage space is formed between the housing 11 and the display screen 12, and the storage space can accommodate components of the device to be charged 10, such as a circuit board 13, a battery 14, etc.
[0081] The circuit board 13 is installed in the housing 11. The circuit board 13 may be the mainboard of the device to be charged 10. One or more functional devices such as a motor, a microphone, a speaker, an earphone interface, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, and a processor may be integrated on the circuit board 13. It should be noted that in the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0082] In some embodiments, the circuit board 13 can be fixed in the housing 11. Specifically, the circuit board 13 can be screwed to the housing 11 by screws, or can be snap-fitted to the housing 11 by snap-fitting. It should be noted that the specific way in which the circuit board 13 is fixed to the housing 11 in the embodiment of the present application is not limited to this, and other ways are also possible, such as a way of fixing by snap-fitting and screws.
[0083] The battery 14 is installed in the housing 11, and the battery 14 is electrically connected to the circuit board 13 to provide power to the device to be charged 10. The housing 11 can serve as a battery cover for the battery 14. The housing 11 covers the battery 14 to protect the battery 14 and reduce damage to the battery 14 due to collision, falling, etc. of the device to be charged 10.
[0084] When the device to be charged 10 needs to be charged, the device to be charged can be placed on the supporting part of the wireless charging seat. The wireless charging seat senses the approach of the device to be charged 10 and controls the first coil to generate a magnetic field through the chip to realize wireless charging of the device to be charged.
[0085] See also Fig.13 , Fig.13A second structural diagram of a device to be charged provided in an embodiment of the present application. The device to be charged 10 may include a storage and processing circuit 131, which may be integrated on a circuit board 13. The storage and processing circuit 131 may include a memory, such as a hard disk drive memory, a non-volatile memory (such as a flash memory or other electronic programmable read-only memory for forming a solid-state drive, etc.), a volatile memory (such as a static or dynamic random access memory, etc.), etc., which is not limited in the embodiment of the present application. The processing circuit in the storage and processing circuit 131 can be used to control the operation of the device to be charged 10. The processing circuit can be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application-specific integrated circuits, display driver integrated circuits, etc.
[0086] The storage and processing circuit 131 can be used to run software in the device to be charged 10, such as an Internet browsing application, a Voice over Internet Protocol (VOIP) phone call application, an email application, a media playback application, an operating system function, etc. These software can be used to perform some control operations, such as image acquisition based on a camera, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functions based on status indicators such as status indicators of light-emitting diodes, touch event detection based on a touch sensor, functions associated with displaying information on multiple (e.g., layered) displays, operations associated with performing wireless communication functions, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the device to be charged 10, etc., which are not limited by the embodiments of the present application.
[0087] The device to be charged 10 may include an input-output circuit 132, which may be disposed on the circuit board 13. The input-output circuit 132 may be used to enable the device to be charged 10 to input and output data, that is, to allow the device to be charged 10 to receive data from an external device and also to allow the device to be charged 10 to output data from the device to be charged 10 to an external device. The input-output circuit 132 may further include a sensor 1321. The sensor 1321 may include an ambient light sensor, a proximity sensor based on light and capacitance, a touch sensor (for example, based on a light touch sensor and / or a capacitive touch sensor, wherein the touch sensor may be part of a touch display screen or may be used independently as a touch sensor structure), an acceleration sensor, a temperature sensor, and other sensors.
[0088] The device to be charged 10 may include a communication circuit 1322, which may be disposed on the circuit board 13. The communication circuit 1322 may be used to provide the device to be charged 10 with the ability to communicate with an external device. The communication circuit 1322 may include analog and digital input-output interface circuits, and wireless communication circuits based on radio frequency signals and / or optical signals. The wireless communication circuit in the communication circuit 1322 may include a radio frequency transceiver circuit, a power amplifier circuit, a low noise amplifier, a switch, and a filter. For example, the wireless communication circuit in the communication circuit 1322 may include a circuit for supporting near field communication (NFC) by transmitting and receiving near field coupled electromagnetic signals. For example, the communication circuit 1322 may include a near field communication antenna and a near field communication transceiver. The communication circuit 1322 may also include a cellular phone transceiver, a wireless local area network transceiver circuit, and the like.
[0089] The wireless charging stand and control method thereof provided in the embodiment of the present application are introduced in detail above. Specific examples are used herein to illustrate the principle and implementation method of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A control method for a wireless charging stand, characterized in that: The wireless charging seat comprises a seat body and a charging mechanism, wherein the seat body comprises a sensing panel, and the sensing panel is used to carry the device to be charged and collect the contour information of the device to be charged; The charging mechanism can move within the seat; The method comprises: Controlling the sensing panel to collect contour information of a device to be charged placed on the sensing panel; Planning a moving path of the charging mechanism according to the profile information of the device to be charged to obtain a target moving path; Controlling the charging mechanism to move according to the target moving path; The charging mechanism includes a moving mechanism and a charging coil disposed on the moving mechanism, and planning a moving path of the charging mechanism according to the contour information of the device to be charged to obtain a target moving path includes: Calculating the area of the device to be charged and the moving starting point of the charging coil according to the contour information of the device to be charged; Determining whether the area of the device to be charged is larger than the area of the charging coil; If it is greater than, path planning is performed according to the moving starting point of the charging coil and the preset moving direction to obtain the target moving path; If it is less than, the center position of the device to be charged is calculated according to the contour information of the device to be charged; Calculating multiple moving paths from the current position of the charging mechanism to the center position of the device to be charged; The shortest path among the plurality of movement paths is used as the target movement path.
2. The control method of the wireless charging stand according to claim 1, characterized in that: The preset moving directions include multiple ones, and the path planning according to the moving starting point of the charging coil and the preset moving direction to obtain the target moving path includes: Analyzing the movement paths of the charging mechanism when it moves in the plurality of preset movement directions in turn to obtain a plurality of movement paths; Calculate the shortest path according to the multiple moving paths; The shortest path is used as the target moving path.
3. The control method of the wireless charging stand according to any one of claims 1 to 2, characterized in that: The controlling the charging mechanism to move according to the target moving path comprises: monitoring a charging current of the charging mechanism; When the charging current is greater than a threshold, the charging mechanism is controlled to stop moving.
4. The control method of the wireless charging stand according to claim 1, characterized in that: The sensing panel includes a plurality of pressure sensors; and controlling the sensing panel to collect contour information of the device to be charged placed on the sensing panel includes: Controlling the multiple pressure sensors to collect pressure change information when the device to be charged is placed on the sensing panel; Analyzing the pressure change information to obtain coordinate position information of the device to be charged; The coordinate position information of the device to be charged is processed to obtain the contour information of the device to be charged.
5. A wireless charging stand, characterized in that: include: The seat body includes a sensing panel, and the sensing panel is used to carry the device to be charged and collect the contour information of the device to be charged; A charging mechanism, movable within the seat; as well as A controller, connected to the sensing panel and the charging mechanism, respectively, and configured to: plan a moving path of the charging mechanism according to the contour information of the device to be charged collected by the sensing panel, and control the charging mechanism to move according to the planned moving path; Wherein, the charging mechanism includes a mobile mechanism and a charging coil arranged on the mobile mechanism, and the moving path of the charging mechanism is planned according to the contour information of the device to be charged collected by the sensing panel, and the charging mechanism is controlled to move according to the planned moving path, including: calculating the area of the device to be charged and the moving starting point of the charging coil according to the contour information of the device to be charged; judging whether the area of the device to be charged is larger than the area of the charging coil; if larger, performing path planning according to the moving starting point of the charging coil and a preset moving direction to obtain a target moving path; if smaller, calculating the center position of the device to be charged according to the contour information of the device to be charged; calculating multiple moving paths from the current position of the charging mechanism to the center position of the device to be charged; and taking the shortest path among the multiple moving paths as the target moving path.
6. The wireless charging stand according to claim 5, characterized in that: The controller is also configured to: monitor the charging current of the charging mechanism; and control the charging mechanism to stop moving when the charging current is greater than a threshold.
7. The wireless charging stand according to claim 5 or 6, characterized in that: The sensing panel includes a carrying plate and a plurality of pressure sensors, and the plurality of pressure sensors are arranged on one side of the carrying plate.
8. The wireless charging stand according to claim 5 or 6, characterized in that: The charging mechanism comprises a charging coil and a moving mechanism, the moving mechanism is movably arranged in a seat body, the charging coil is arranged in the moving mechanism to move with the moving mechanism, and the controller is connected to the charging coil and the moving mechanism respectively.
Citation Information
Patent Citations
Charging method and charger
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