Powering devices, methods, and systems

Abstract

The application provides a power supply device, method and system. The power supply device comprises a control module, an electromagnetic wave generating module, a feed port selection module and a radio frequency antenna module. The feed port selection module comprises a plurality of feed port selection switches. The radio frequency antenna module comprises a plurality of input feed ports and a radio frequency unit. The plurality of input feed ports are connected to the plurality of feed port selection switches in one-to-one correspondence. The control module can select an input feed port to transmit electromagnetic waves to an electronic device according to a signal transmitted by the electronic device, thereby improving the power supply efficiency of the electronic device using electromagnetic waves for power supply. The power supply device provided by the application has low cost and simple control process, and can ensure the power supply freedom of the electronic device.

Description

Technical Field

[0001] This application relates to the field of wireless power supply technology, and more specifically, to a power supply device, method, and system. Background Technology

[0002] Wireless power supply technology uses electromagnetic waves as the transmission medium. The power supply device sends electromagnetic waves to the electronic device, providing power without physical contact. The power supply efficiency of wireless power supply technology depends on the transmission efficiency of electromagnetic waves in space and the energy conversion efficiency of the electronic device. Factors such as the angle between the electronic device and the power supply device, and the movement of the electronic device, all affect the power supply efficiency. Existing power supply devices typically use mechanical devices to adjust the antenna orientation or phase control devices to adjust the antenna phase in the radio frequency antenna module, enabling the power supply device to accurately send electromagnetic waves to the electronic device, thereby improving the power supply efficiency. However, incorporating mechanical devices or phase control devices into the power supply device increases cost and complicates the control process.

[0003] Therefore, there is an urgent need for a low-cost power supply device, method, and system with a simple control process. Summary of the Invention

[0004] This application provides a power supply device, method, and system that can select an input port to transmit electromagnetic waves to an electronic device based on the signals sent by the electronic device, thereby improving the power supply efficiency of the electronic device using electromagnetic waves for power supply. Furthermore, the power supply device provided by this application is low-cost, has a simple control process, and can guarantee the power supply freedom of the electronic device.

[0005] In a first aspect, this application provides a power supply device that can be used to transmit electromagnetic waves to power electronic devices. The power supply device may include a control module, an electromagnetic wave generation module, a feed port selection module, and a radio frequency antenna module.

[0006] The control module can be electrically connected to the electromagnetic wave generation module and the feed port selection module, and the electromagnetic wave generation module is electrically connected to the feed port selection module.

[0007] Optionally, the feed port selection module may include multiple feed port selection switches. The RF antenna module may include multiple input feed ports and RF units. The multiple input feed ports may be electrically connected to the multiple feed port selection switches in a one-to-one correspondence.

[0008] Based on the above electrical connection relationship, we can further conclude that:

[0009] The electromagnetic wave generating module can be used to generate electromagnetic waves under the control of the control module. In other words, under the control of the control module, the electromagnetic wave generating module can generate electromagnetic waves and transmit them to the feed port selection module.

[0010] Multiple feed port selection switches can be used to selectively activate one port based on the control module's settings. In other words, under the control of the control module, multiple feed port selection switches can choose to activate only one of them.

[0011] The control module can be used to control the power supply equipment to operate in scanning or power supply mode based on signals sent by the electronic equipment.

[0012] In the scanning state, the control module controls multiple feed port selection switches to be turned on, transmitting electromagnetic waves through multiple input feed ports and the RF unit to power the electronic device. In the power supply state, the control module controls one feed port selection switch to be turned on individually, transmitting electromagnetic waves through the input feed port and the RF unit corresponding to the turned-on feed port selection switch to power the electronic device.

[0013] It should be noted that when multiple feed port selector switches are turned on separately, the conduction time of each feed port selector switch can be less than the conduction time of a single feed port selector switch when all the feed port selector switches are turned on.

[0014] The power supply equipment provided in this application includes multiple feed port selection switches and multiple input feed ports. It can select one input feed port to transmit electromagnetic waves to the electronic device based on the signal sent by the electronic device, thereby improving the power supply efficiency of the electronic device using electromagnetic waves for power supply. Furthermore, the power supply equipment provided in this application is low-cost, has a simple control process, and can ensure the power supply flexibility of the electronic device.

[0015] In one possible implementation, the control module can be used to control the power supply equipment to operate in a scanning state. When multiple feed port selection switches are respectively turned on, the control module sends electromagnetic waves to the electronic equipment through the multiple turned-on feed port selection switches, multiple input feed ports, and the radio frequency unit. The control module receives the power supply signal sent by the electronic equipment and controls one of the multiple feed port selection switches to be turned on individually based on the power supply signal.

[0016] Among them, the power supply signal can be used to indicate the power supply of electronic devices using electromagnetic waves.

[0017] Furthermore, the control module can select the feed port selection switch corresponding to the maximum power supply to turn on, thereby sending electromagnetic waves to the electronic device to realize wireless power supply for the electronic device.

[0018] It can be seen that by controlling multiple feed port selection switches to be turned on by the control module, one of the feed port selection switches can be determined to transmit electromagnetic waves, which greatly shortens the optimization time of the electronic equipment and at the same time ensures the power supply freedom of the electronic equipment.

[0019] In one possible implementation, the control module can be used to control the power supply equipment to operate in a power-on state. When one of the multiple feed port selection switches is turned on, the control module can transmit electromagnetic waves to power the electronic equipment through the turned-on feed port selection switch, the input feed port corresponding to the turned-on feed port selection switch, and the radio frequency unit. The control module can receive power change signals transmitted by the electronic equipment and control the power supply equipment to switch from a power-on state to a scanning state based on the power change signals.

[0020] The power change signal can be used to indicate the change in power supply of electronic devices through the activated feed port selection switch, the input feed port corresponding to the activated feed port selection switch, and the electromagnetic waves transmitted by the radio frequency unit.

[0021] It is conceivable that the power change signal can indicate that the power supply of electronic devices may decrease due to reasons such as position movement or obstruction. Therefore, the control module can control the power supply equipment to switch from power supply state to scanning state.

[0022] In another possible implementation, when the power supply equipment is in power-on mode, the control module can receive a power-on completion signal sent by the electronic device. Based on the power-on completion signal, the control module controls the power supply equipment to operate in standby mode. In standby mode, the control module can control the on feed port selection switch to turn off or control the electromagnetic wave generating module to stop generating electromagnetic waves.

[0023] The power supply completion signal can be used to indicate that the power supply to the electronic device is complete.

[0024] In one possible implementation, the control module can be used to control the power supply equipment to operate in a matching state. In the matching state, the control module can broadcast an online signal to the electronic device. The control module receives a distance signal sent by the electronic device based on the online signal, and controls the power supply equipment to operate in a scanning state, a power supply state, or a standby state based on the distance signal.

[0025] Among these, online signals can be used to indicate the communication status of power supply equipment, etc. Distance signals can be used to indicate the distance between electronic devices and power supply equipment. It should be noted that electronic devices can have the capability to determine the distance between themselves and power supply equipment.

[0026] It can be seen that the control module can actively broadcast online signals, thereby operating in scanning state, power supply state or standby state, and achieving matching between electronic equipment and power supply equipment.

[0027] It is conceivable that if the control module receives a distance signal, on the one hand, if the distance signal between the electronic device and the power supply device exceeds the preset distance threshold, the control module can control the power supply device to operate in standby mode; on the other hand, if the distance signal between the electronic device and the power supply device is less than or equal to the preset distance threshold, the control module can control the power supply device to operate in scanning mode or power supply mode.

[0028] It should be noted that if the control module does not receive a distance signal, the control module can continue to broadcast the online signal, and the power supply equipment can operate in standby mode.

[0029] In one possible implementation, the aforementioned radio frequency antenna module can be a Rotman lens antenna.

[0030] Furthermore, the Rotman lens antenna may include a stacked feed layer, a ground layer, and a radiating layer. The feed layer includes multiple input ports.

[0031] In one example, the power supply equipment could be located at a base station, etc.

[0032] In one example, the electronic device could be a mobile phone, laptop, helmet, or other similar device, enabling wireless power supply to the energy storage module within the device. The energy storage module could be the battery of the electronic device.

[0033] In another example, an electronic device can serve as a relay between a power supply device and a terminal device such as a mobile phone. The power supply device can provide power to the electronic device, and the electronic device can enable wireless power supply to the terminal device such as the mobile phone.

[0034] Secondly, this application provides a method for a power supply system. The power supply system may include power supply equipment and electronic equipment. The power supply equipment can be used to transmit electromagnetic waves to power the electronic equipment. The feed port selection module of the power supply equipment may include multiple feed port selection switches, and the radio frequency antenna module of the power supply equipment may include multiple input feed ports and radio frequency units. The multiple input feed ports can be electrically connected to the multiple feed port selection switches in a one-to-one correspondence.

[0035] The method provided in this application may include: a power supply device generating electromagnetic waves. The power supply device controls multiple feed port selection switches to be turned on respectively, transmitting electromagnetic waves to an electronic device through multiple input feed ports and an RF unit, and operating in a scanning state according to the signal transmitted by the electronic device. Alternatively, the power supply device controls one of the multiple feed port selection switches to be turned on individually, transmitting electromagnetic waves to an electronic device through the input feed port and RF unit corresponding to the turned-on feed port selection switch, and operating in a power supply state according to the signal transmitted by the electronic device.

[0036] It should be noted that when multiple feed port selector switches are turned on separately, the conduction time of each feed port selector switch can be less than the conduction time of a single feed port selector switch when all the feed port selector switches are turned on.

[0037] The method provided in this application enables power supply equipment to achieve wide-range scanning of electromagnetic waves, thereby improving the power supply efficiency of electronic devices using electromagnetic waves for power supply. Furthermore, the power supply equipment provided in this application is low-cost, has a simple control process, and can guarantee the power supply freedom of electronic devices.

[0038] In one possible implementation, the method provided in this application may include: a power supply device operating in a scanning state. When multiple feed port selection switches are respectively turned on, the power supply device transmits electromagnetic waves to the electronic device through the multiple turned-on feed port selection switches, multiple input feed ports, and the radio frequency unit. The power supply device receives the power supply signal transmitted by the electronic device and controls one of the multiple feed port selection switches to be turned on individually according to the power supply signal.

[0039] Among them, the power information signal can be used to indicate the power supply of electronic devices using electromagnetic waves.

[0040] Furthermore, the power supply equipment can select the feed port selection switch corresponding to the maximum power supply to turn on, thereby sending electromagnetic waves to the electronic equipment and realizing wireless power supply for the electronic equipment.

[0041] It can be seen that by controlling multiple feed port selection switches to be turned on respectively, it is possible to determine that one of the multiple feed port selection switches is turned on, which greatly shortens the optimization time of electronic equipment and at the same time ensures the power supply freedom of electronic equipment.

[0042] In one possible implementation, the method provided in this application may include: the power supply device operating in a power supply state. When one of the feed port selection switches among multiple feed port selection switches is turned on, the power supply device transmits electromagnetic waves to power the electronic device through the turned-on feed port selection switch, the input feed port corresponding to the turned-on feed port selection switch, and the radio frequency unit. The power supply device receives power change signals transmitted by the electronic device and switches from the power supply state to the scanning state according to the power change signals.

[0043] The power change signal can be used to indicate the change in power supply of electronic devices through the activated feed port selection switch, the input feed port corresponding to the activated feed port selection switch, and the electromagnetic waves transmitted by the radio frequency unit.

[0044] It is conceivable that the power change signal can indicate that the power supply of electronic devices may decrease due to reasons such as position movement or obstruction. Therefore, the control module can control the power supply equipment to switch from power supply state to scanning state.

[0045] In another possible implementation, the method provided in this application includes: when the power supply device is operating in a power supply state, the power supply device receives a power supply completion signal sent by an electronic device. Based on the power supply completion signal, the power supply device controls itself to operate in a standby state. In the standby state, the power supply device controls the selected switch of the on-state feed port to turn off or controls the electromagnetic wave generating module of the power supply device to stop generating electromagnetic waves.

[0046] The power supply completion signal is used to indicate that the electronic device has been powered on.

[0047] In one possible implementation, the power supply device operates in a matched state. In the matched state, the power supply device broadcasts an online signal to the electronic device. The power supply device receives a distance signal sent by the electronic device based on the online signal, and controls the power supply device to operate in a scanning state, a power supply state, or a standby state based on the distance signal.

[0048] The distance signal can be used to indicate the distance between the electronic device and the power supply device. It should be noted that the electronic device can have the capability to determine the distance between itself and the power supply device.

[0049] It can be seen that the control module can actively broadcast online signals, thereby operating in scanning state, power supply state or standby state, and achieving matching between electronic equipment and power supply equipment.

[0050] It is conceivable that if the control module receives a distance signal from the electronic device, on the one hand, if the distance signal between the electronic device and the power supply exceeds a preset distance threshold, the control module can control the power supply to operate in standby mode; on the other hand, if the distance signal between the electronic device and the power supply is less than or equal to the preset distance threshold, the control module can control the power supply to operate in scanning mode or power supply mode.

[0051] It should be noted that if the control module does not receive a distance signal from the electronic device, the control module can continue to broadcast the online signal, and the power supply equipment can operate in standby mode.

[0052] Thirdly, this application provides a power supply system, which may include a power supply device and an electronic device. The power supply device can be used to transmit electromagnetic waves to power the electronic device. The feed port selection module of the power supply device may include multiple feed port selection switches. The radio frequency antenna module of the power supply device may include multiple input feed ports and radio frequency units. The multiple input feed ports can be connected one-to-one with the multiple feed port selection switches.

[0053] Optionally, the power supply equipment can control multiple feed port selection switches to be turned on separately, transmitting electromagnetic waves generated by the power supply equipment to electronic devices through multiple input feed ports and RF units, and operating in a scanning state according to the signals transmitted by the electronic devices. Alternatively, the power supply equipment can control one of the multiple feed port selection switches to be turned on individually, transmitting electromagnetic waves to electronic devices through the input feed port and RF unit corresponding to the turned-on feed port selection switch, and operating in a power supply state according to the signals transmitted by the electronic devices.

[0054] It should be noted that when multiple feed port selector switches are turned on separately, the conduction time of each feed port selector switch can be less than the conduction time of a single feed port selector switch when all the feed port selector switches are turned on.

[0055] In one possible implementation, the electronic device can send a distance signal to the power supply device. The power supply device receives the distance signal and operates in a scanning state, a power supply state, or a standby state based on the distance signal.

[0056] The distance signal can be used to indicate the distance between the electronic device and the power supply device. It should be noted that the electronic device can have the capability to determine the distance between itself and the power supply device.

[0057] It can be seen that the electronic device can actively send distance signals to the power supply device, so that the power supply device can operate in scanning state, power supply state or standby state, and realize the matching between the electronic device and the power supply device.

[0058] It is conceivable that if the power supply device receives a distance signal, on the one hand, if the distance signal between the electronic device and the power supply device exceeds a preset distance threshold, the power supply device can operate in standby mode; on the other hand, if the distance signal between the electronic device and the power supply device is less than or equal to the preset distance threshold, the power supply device can operate in scanning mode or power supply mode.

[0059] It should be noted that if the power supply equipment does not receive a distance signal, the power supply equipment can operate in standby mode.

[0060] In another possible implementation, the electronic device can send a status signal to the power supply device. The power supply device can receive the status signal and operate in a scanning state, a power supply state, or a standby state based on the status signal.

[0061] The status signal is used to indicate at least one of the operating status of the electronic device and the received signal strength indication information. The operating status of the electronic device includes scanning status or power supply status.

[0062] It can be seen that electronic devices can actively send status signals, thereby enabling power supply equipment to operate in scanning, power supply, or standby states, and achieving matching between electronic devices and power supply equipment.

[0063] It should be noted that when the power supply device receives a status signal, it can operate in either scanning or power supply mode. If the power supply device does not receive a status signal, it can operate in standby mode.

[0064] In another possible implementation, the electronic device may include a power receiving module and a power conversion module. The power receiving module may be electrically connected to the radio frequency unit and the power conversion module.

[0065] Based on the above electrical connection relationship, we can further conclude that:

[0066] The power receiving module can be used to receive electromagnetic waves transmitted by the radio frequency unit and send the electromagnetic waves to the power conversion module.

[0067] The power conversion module can be used to convert electromagnetic waves into power that electronic devices can use to power them and then supply it to the energy storage module.

[0068] It should be understood that the second and third aspects of this application are consistent with the technical solutions of the first aspect of this application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation are similar, so they will not be described again. Attached Figure Description

[0069] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0070] Figure 1 A schematic diagram of a power supply device provided in an embodiment of this application;

[0071] Figure 2 Another schematic diagram of the power supply equipment provided in the embodiments of this application;

[0072] Figure 3 This is a schematic diagram of a radio frequency antenna module in an embodiment of this application;

[0073] Figure 4 This is a schematic diagram of a Rotman lens antenna in one embodiment of this application;

[0074] Figure 5 This is another schematic diagram of the Rotman lens antenna in the embodiments of this application;

[0075] Figure 6 This is another schematic diagram of the Rotman lens antenna in the embodiments of this application;

[0076] Figure 7 This is a simulation diagram of the electromagnetic wave corresponding to a single feed port in the Rotman lens antenna in the embodiments of this application;

[0077] Figure 8 This is another simulation diagram of the electromagnetic wave corresponding to the single feed port of the Rotman lens antenna in the embodiments of this application;

[0078] Figure 9 A schematic diagram of a power supply system provided in an embodiment of this application;

[0079] Figure 10 Another schematic diagram of the power supply system provided in the embodiments of this application;

[0080] Figure 11 This is a schematic diagram of a method for a power supply system in an embodiment of this application. Detailed Implementation

[0081] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0082] The terms "first," "second," etc., used in the specification, embodiments, claims, and drawings of this application are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, such as including a series of steps or units. A method, system, product, or apparatus is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or apparatuses.

[0083] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0084] "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0085] Wireless power supply technology uses electromagnetic waves as the transmission medium. The power supply device sends electromagnetic waves to the electronic device, providing power without physical contact. The power supply efficiency of wireless power supply technology depends on the transmission efficiency of electromagnetic waves in space and the energy conversion efficiency of the electronic device. Factors such as the angle between the electronic device and the power supply device, and the movement of the electronic device, all affect the power supply efficiency. Existing power supply devices typically use mechanical devices to adjust the antenna orientation or phase control devices to adjust the antenna phase in the radio frequency antenna module, enabling the power supply device to accurately send electromagnetic waves to the electronic device, thereby improving the power supply efficiency. However, incorporating mechanical devices or phase control devices into the power supply device increases cost and complicates the control process.

[0086] To overcome the above deficiencies, embodiments of this application provide a power supply device, method, and system.

[0087] Figure 1 This is a schematic diagram of a power supply device provided in an embodiment of this application. In this embodiment, the power supply device 1 can be used to transmit electromagnetic waves to power the electronic device 2. Figure 1 As shown, the power supply device 1 includes a control module 11, an electromagnetic wave generation module 12, a feed port selection module 13, and a radio frequency antenna module 14. In this embodiment, the operating state of the power supply device 1 may include a matching state, a scanning state, a power supply state, and a standby state.

[0088] The control module 11 is used to control the operating status of the power supply equipment 1. Specifically, the control module 11 controls the operation of the electromagnetic wave generating module 12 and the feed port selection module 13 to control the operating status of the power supply equipment 1. The electromagnetic wave generating module 12 generates electromagnetic waves and transmits them to the feed port selection module 13. In this embodiment, the electromagnetic wave generating module 12 generates or stops generating electromagnetic waves according to the control of the control module 11. That is, under the control of the control module 11, the electromagnetic wave generating module 12 can generate electromagnetic waves and transmit them to the feed port selection module 13.

[0089] The feed port selection module 13 receives electromagnetic waves generated by the electromagnetic wave generating module 12 under the control of the control module 11, and uses these electromagnetic waves to transmit to the radio frequency antenna module 14. For example... Figure 1 As shown, the feed port selection module 13 may include multiple feed port selection switches (131, 132, ..., 13N). The feed port selection module 13 includes feed port selection switches 131, 132, ..., and 13N. In this embodiment, the feed port selection module 13 includes N feed port selection switches. N can be greater than or equal to 2.

[0090] In this embodiment, the N feed port selection switches of the feed port selection module 13 can be configured in series, parallel, or a combination of series and parallel. In one embodiment, the feed port selection module 13 can be a switch array, and the multiple feed port selection switches (131, 132, ..., 13N) can be multiple RF switches. When any one of the multiple feed port selection switches (131, 132, ..., 13N) is turned on, the turned-on feed port selection switch can transmit the electromagnetic wave generated by the electromagnetic wave generating module 12 to the RF antenna module 14. The multiple feed port selection switches (131, 132, ..., 13N) can be selectively turned on according to the control of the control module 11.

[0091] The radio frequency antenna module 14 is used to receive electromagnetic waves transmitted by the feed port selection module 13 and to transmit electromagnetic waves to power the electronic device 2. In this embodiment, the radio frequency antenna module 14 can be a Rotman lens antenna or a Luneburg lens antenna, etc. Of course, the radio frequency antenna module 14 can also be of other types, and this embodiment does not limit it.

[0092] like Figure 1 As shown, the radio frequency antenna module 14 may include multiple input feed ports (1411, 1412, ..., 141N) and a radio frequency unit 142. Electromagnetic waves can be transmitted to the radio frequency unit 142 through different input feed ports among the multiple input feed ports (1411, 1412, ..., 141N). In this embodiment, the electromagnetic waves are input into the radio frequency unit 142 through different input feed ports among the multiple input feed ports (1411, 1412, ..., 141N), which can cause different current distributions in the radiation of the electromagnetic waves within the radio frequency unit 142, resulting in different radiation efficiencies of the radio frequency unit 142, and consequently, different power supply efficiencies of the electronic device 2.

[0093] like Figure 1 As shown, the RF antenna module 14 may include input feed ports 1411, 1412, ..., 141N. In this embodiment, the RF antenna module 14 includes N input feed ports. N can be greater than or equal to 2. The multiple input feed ports (1411, 1412, ..., 141N) are electrically connected to multiple feed port selection switches (131, 132, ..., 13N) in a one-to-one correspondence. For example, input feed port 1411 is electrically connected to feed port selection switch 131. When feed port selection switch 131 is turned on, the electromagnetic wave generated by the electromagnetic wave generation module 12 can be transmitted to the RF unit 142 through feed port selection switch 131 and input feed port 1411.

[0094] Figure 2 Another schematic diagram of the power supply device provided in an embodiment of this application. (See diagram below.) Figure 2As shown, the control module 11 may include a control unit 111 and a communication unit 112. The control unit 111 can control the electromagnetic wave generating module 12, the feed port selection module 13, and the communication unit 112. The communication unit 112 can send signals to the electronic device 2 and receive signals sent by the electronic device 2. In this embodiment, the communication unit 112 may include one or more of Bluetooth, cellular, or wireless fidelity (Wi-Fi) units. The control unit 111 can control the operation of the electromagnetic wave generating module 12 and the feed port selection module 13 based on the signals sent by the electronic device 2 received by the communication unit 112. In this embodiment, the frequencies of the signals sent and received by the communication unit 112 are different from the frequencies of the electromagnetic waves sent by the radio frequency antenna module 14.

[0095] In this embodiment, the control unit 111 can control the power supply device 1 to operate in a matching state. Specifically, the control unit 111 broadcasts an online signal to the electronic device 2 via the communication unit 112. The electronic device 2 receives the online signal and can send a distance signal to the power supply device 1. The control unit 111 receives the distance signal sent by the electronic device 2 via the communication unit 112 and determines that the electronic device 2 and the power supply device 1 are successfully matched based on the distance signal.

[0096] In one embodiment, the control unit 111 may not broadcast an online signal to the electronic device 2. The control unit 111 listens to the distance signal actively sent by the electronic device 2 through the communication unit 112, and determines that the electronic device 2 and the power supply device 1 have been successfully matched based on the distance signal.

[0097] In one embodiment, when the power supply device 1 is operating in a matched state, the control unit 111 can control the electromagnetic wave generating module 12 to stop generating electromagnetic waves or control the multiple feed port selection switches (131, 132, ..., 13N) in the feed port selection module 13 to turn off, thereby reducing the power consumption of the power supply device 1.

[0098] In this embodiment, the online signal is used to indicate the communication status of the power supply device 1, and the distance signal is used to indicate the distance between the electronic device 2 and the power supply device 1. Of course, the online signal and the distance signal can also be used to indicate other information or status, and this embodiment does not limit this.

[0099] In this embodiment, the control unit 111 can control the power supply device 1 to operate in a scanning state. Specifically, the control unit 111 controls the electromagnetic wave generating module 12 to generate electromagnetic waves and controls multiple feed port selection switches (131, 132, ..., 13N) to be turned on respectively. In this embodiment, when the power supply device 1 is operating in the scanning state, the on-time of each feed port selection switch (131, 132, ..., 13N) is a preset time. The electromagnetic wave generating module 12 generates electromagnetic waves, which are transmitted through the multiple on-state feed port selection switches (131, 132, ..., 13N) and the corresponding multiple input feed ports (1411, 1412, ..., 141N). For example, when feed port selection switch 131 is turned on, the electronic device 2 receives the electromagnetic waves transmitted through feed port selection switch 131 and input feed port 1411 for power supply. When the feed port selection switch 132 is turned on, the electronic device 2 receives electromagnetic waves transmitted through the feed port selection switch 132 and the input feed port 1412 for power supply. Among them, the power supply power of the electronic device 2 is maximized when it uses electromagnetic waves transmitted by one of the multiple feed port selection switches (131, 132, ..., 13N).

[0100] In this embodiment, when the power supply device 1 is operating in a scanning state, the control unit 111 can receive the power supply signal sent by the electronic device 2 through the communication unit 112. Based on the power supply signal sent by the electronic device 2, the control unit 111 can determine the feed port selection switch with the highest power supply. In this embodiment, the power supply signal is used to indicate the power supply power of the electronic device 2 using electromagnetic waves.

[0101] In one embodiment, when multiple feed port selection switches (131, 132, ..., 13N) are sequentially turned on, the electronic device 2 sequentially sends power supply signals to the power supply device 1. For example, when feed port selection switch 131 is turned on, the electronic device 2 receives the electromagnetic waves transmitted through feed port selection switch 131 and input feed port 1411, and sends a power supply signal to the power supply device 1 using the electromagnetic waves transmitted through feed port selection switch 131 and input feed port 1411 for power supply. When feed port selection switch 132 is turned on, the electronic device 2 receives the electromagnetic waves transmitted through feed port selection switch 132 and input feed port 1412, and sends a power supply signal to the power supply device 1 using the electromagnetic waves transmitted through feed port selection switch 132 and input feed port 1412 for power supply. Accordingly, the control unit 111 can determine the feed port selection switch with the highest power supply based on the power supply signals sent by the electronic device 2.

[0102] In one embodiment, after multiple feed port selection switches (131, 132, ..., 13N) are turned on, electronic device 2 sends a power supply signal to power supply device 1, indicating the power supply power corresponding to each of the multiple feed port selection switches (131, 132, ..., 13N). Then, the feed port selection switches (132, ..., 13N) are turned on respectively. Finally, electronic device 2 can send a power supply signal to power supply device 1. The power supply signal includes the power supply power corresponding to each of the multiple feed port selection switches (131, 132, ..., 13N). Accordingly, control unit 111 can determine the feed port selection switch with the highest power supply based on the power supply signal sent by electronic device 2.

[0103] In one embodiment, after multiple feed port selection switches (131, 132, ..., 13N) are turned on, the electronic device 2 sends a power supply signal to the power supply device 1 indicating the power supply power corresponding to one of the multiple feed port selection switches (131, 132, ..., 13N). For example, after the feed port selection switches (131, ..., 13N) are turned on, the electronic device 2 uses the electromagnetic wave transmitted through feed port selection switch 132 to provide the maximum power supply, and the electronic device 2 sends a power supply signal to the power supply device 1 to indicate the power supply power corresponding to feed port selection switch 132. Similarly, after the feed port selection switches (131, ..., 13N) are turned on, the electronic device 2 uses the electromagnetic wave transmitted through feed port selection switch 13N to provide the maximum power supply, and the electronic device 2 sends a power supply signal to the power supply device 1 to indicate the power supply power corresponding to feed port selection switch 13N. Accordingly, the control unit 111 can determine the feed port selection switch with the maximum power supply based on the power supply signal sent by the electronic device 2.

[0104] In this embodiment, the control unit 111 can control the power supply device 1 to operate in a power supply state. Specifically, the control unit 111 controls one of the multiple feed port selection switches (131, 132, ..., 13N) to be turned on individually. In this embodiment, when the power supply device 1 is operating in a power supply state, one of the multiple feed port selection switches (131, 132, ..., 13N) is turned on, and the on-time is not limited by a preset time. The electromagnetic wave generating module 12 generates electromagnetic waves, which are transmitted through the turned-on feed port selection switch, the input feed port corresponding to the turned-on feed port selection switch, and the radio frequency unit 142. For example, the control unit 111 controls the feed port selection switch 131 to be turned on, and the electromagnetic wave generating module 12 generates electromagnetic waves which are transmitted through the feed port selection switch 131, the input feed port 1411, and the radio frequency unit 142. The control unit 111 controls the feed port selection switch 132 to be turned on, and the electromagnetic wave generation module 12 generates electromagnetic waves that are transmitted through the feed port selection switch 132, the input feed port 1412, and the radio frequency unit 142.

[0105] In one embodiment, the control unit 111 controls one of a plurality of feed port selection switches (131, 132, ..., 13N) to be turned on according to a power supply signal, so that the power supply device 1 operates in a power supply state. For example, the power supply signal sent by the electronic device 2 indicates the maximum power supply corresponding to feed port selection switch 132. The control unit 111, in response to the power supply signal, controls feed port selection switch 132 to be turned on, and electromagnetic waves are transmitted through feed port selection switch 132 and input feed port 1412, allowing the electronic device 2 to supply power using electromagnetic waves. For example, the power supply signal sent by the electronic device 2 indicates the maximum power supply corresponding to feed port selection switch 133. The control unit 111, in response to the power supply signal, controls feed port selection switch 133 to be turned on, and electromagnetic waves are transmitted through feed port selection switch 133 and input feed port 1413, allowing the electronic device 2 to supply power using electromagnetic waves.

[0106] In one embodiment, the power supply device 1 can pre-store the correspondence between multiple electronic devices 2 and multiple feed port selection switches (131, 132, ..., 13N). After the power supply device 1 and the electronic devices 2 are matched, the control unit 111 controls one of the feed port selection switches (131, 132, ..., 13N) to be turned on individually, so that the power supply device 1 operates in the power supply state.

[0107] In this embodiment, the control unit 111 can receive a power change signal sent by the electronic device 2 via the communication unit 112. In response to the power change signal, the control unit 111 controls the power supply device 1 to switch from a power supply state to a scanning state. In this embodiment, the power change signal is used to indicate changes in the power supply power of the electronic device 2 using electromagnetic waves. Specifically, when the power supply device 1 is operating in a power supply state, changes in the position of the electronic device 2, or obstruction between the power supply device 1 and the electronic device 2, will cause changes in the power supply power of the electronic device 2 using electromagnetic waves. In response to the change in power supply power, the electronic device 2 can send a power change signal to the power supply device 1.

[0108] For example, when power supply device 1 is in power supply mode, control unit 111 controls feed port selection switch 131 to be turned on, and electromagnetic wave generation module 12 generates electromagnetic waves which are transmitted through feed port selection switch 131, input feed port 1411, and radio frequency unit 142. When electronic device 2 is powered by electromagnetic waves, an obstacle blocks the path between power supply device 1 and electronic device 2, causing a change in the power supply power of electronic device 2. In response to the change in power supply power, electronic device 2 can send a power change signal to power supply device 1. In response to the power change signal, control unit 111 controls power supply device 1 to switch from power supply mode to scanning mode. Specifically, control unit 111 controls feed port selection switch 131 to be turned off, and then control multiple feed port selection switches (131, 132, ..., 13N) to be turned on respectively.

[0109] In this embodiment, the control unit 111 can control the power supply device 1 to operate in a standby state. The control unit 111 can receive a power supply completion signal sent by the electronic device 2 through the communication unit 112. In response to the power supply completion signal, the control unit 111 controls the power supply device 1 to operate in a standby state. Specifically, the control unit 111 controls the on-state feed port selection switch to turn off or controls the electromagnetic wave generating module 12 to stop generating electromagnetic waves.

[0110] In this embodiment, the power supply completion signal can be used to indicate that the electronic device 2 has completed power supply. Specifically, when the electronic device 2 is powered by electromagnetic waves, its operating state changes, and it no longer needs to be powered by electromagnetic waves. For example, the electronic device 2's battery has finished charging, the electronic device 2 has entered standby mode, or the electronic device 2 has stopped operating. Accordingly, the electronic device 2 can send a power supply completion signal to the power supply device 1.

[0111] The power supply device provided in this application includes a feed port selection module and multiple input feed ports. The feed port selection module selects one input feed port to send electromagnetic waves to the electronic device, thereby improving the power supply efficiency of the electronic device using electromagnetic waves for power supply. Furthermore, the power supply device provided in this application is low-cost, has a simple control process, and can ensure the power supply flexibility of the electronic device.

[0112] Figure 3 This is a schematic diagram of a radio frequency antenna module in an embodiment of this application. Figure 3 As shown, the radio frequency antenna module 14 includes a Rodman lens antenna A. The Rodman lens antenna A can be a multi-layer planar lens antenna. The Rodman lens antenna A may include a stacked feed layer A1, a ground layer A2, and a radiating layer A3. The Rodman lens antenna A has a compact structure, which is beneficial for the miniaturization of the power supply device 1.

[0113] Figure 4This is a schematic diagram of a Rotman lens antenna according to an embodiment of this application. Figure 4 As shown, the feed layer A1 of the Rotman lens antenna A includes a substrate A11 and a plurality of input feed ports (1411, 1412, ..., 141N), a planar lens A13, an absorption load A14, a plurality of isolation bands A15, and a plurality of coupling slots A16 disposed on the substrate A11. For example, the feed layer A1 includes 8 input feed ports (1411, 1412, ..., 1418), 7 isolation bands A15, and 8 coupling slots A16. In other embodiments, the number of each of the plurality of input feed ports (1411, 1412, ..., 141N), the plurality of isolation bands A15, and the plurality of coupling slots A16 in the feed layer A1 can be other combinations.

[0114] Multiple input feed ports (1411, 1412, ..., 141N) are configured as input ports for receiving electromagnetic waves in the Rotman lens antenna A, used to transmit the electromagnetic waves transmitted by the feed port selection module 13 to the planar lens A13. In this embodiment, the multiple input feed ports (1411, 1412, ..., 141N) of the feed layer A1 are electrically connected to multiple feed port selection switches (131, 132, ..., 13N) in a one-to-one correspondence. In one embodiment, the number of multiple input feed ports (1411, 1412, ..., 141N) in the feed layer A1 can be the same as the number of multiple feed port selection switches (131, 132, ..., 13N).

[0115] The plane lens A13 can convert the spherical wave transmitted by the input feed port A12 into a plane wave with a waveform that is symmetrical about the center.

[0116] There can be one or more absorption loads A14. In this embodiment, the feed layer A1 can be provided with two absorption loads A14. The absorption loads A14 can maintain the forward transmission path of the electromagnetic wave converted by the planar lens A13 to the feed layer A1, that is, prevent the electromagnetic wave converted by the planar lens A13 from transmitting in the reverse direction.

[0117] Multiple isolation bands A15 are used to form multiple transmission channels of the feed layer A1. The multiple isolation bands A15 are arranged parallel to each other, and a transmission channel of the feed layer A1 can be formed between two adjacent isolation bands A15. Since the electromagnetic wave from the feed port selection module 13 can be transmitted to the transmission channel of the feed layer A1 through any one of the multiple input feed ports (1411, 1412, ..., 141N) and through the planar lens A13, in this embodiment, the feed layer A1 can be provided with 7 isolation bands A15 and 8 transmission channels. It should be noted that since the multiple input feed ports (1411, 1412, ..., 141N) correspond one-to-one with the multiple transmission channels of the feed layer A1, the transmission channels of the feed layer A1 can have a phase compensation function to ensure that the phase of the electromagnetic wave transmitted from the transmission channel of the feed layer A1 to the corresponding coupling gap A16 is as equal as possible. In other words, by ensuring that the beam direction of the electromagnetic wave transmitted from the transmission channel of the feed layer A1 to the corresponding coupling slot A16 is fixed, the transmission efficiency of the feed layer A1 is improved, thereby improving the transmission efficiency of the Rotman lens antenna A.

[0118] Multiple coupling slots A16 can be used to radiate electromagnetic waves from multiple transmission channels of the feed layer A1 to the ground layer A2. Each coupling slot A16 corresponds one-to-one with a transmission channel of the feed layer A1. In this embodiment, the number of coupling slots A16 is the same as the number of input feed ports (1411, 1412, ..., 141N), and the feed layer A1 can have seven coupling slots A16. For example, the multiple coupling slots A16 can be arranged in a straight line, and the direction of the slot array formed by the arrangement of the multiple coupling slots A16 can be perpendicular to the setting direction of the isolation strip A15. In this embodiment, the direction of the slot array formed by the arrangement of eight coupling slots A16 is horizontal, the setting direction of the seven isolation strips A15 is vertical, and the direction of the slot array formed by the arrangement of eight coupling slots A16 is perpendicular to the setting direction of the seven isolation strips A15. For example, the multiple coupling slots A16 can be rectangular or square, etc. Of course, the multiple coupling gaps A16 can also be of other shapes, and this application embodiment is not limited to any particular shape. In this application embodiment, the eight coupling gaps are all rectangular. The multiple coupling gaps A16 can radiate the electromagnetic waves transmitted by the multiple transmission channels of the feed layer A1 to the ground layer A2, realizing the transmission of electromagnetic waves from the feed layer A1 to the ground layer A2.

[0119] Figure 5 This is another schematic diagram of the Rotman lens antenna in an embodiment of this application. For example... Figure 5 As shown, the ground layer A2 of the Rotman lens antenna A may include a substrate A21 and a plurality of coupling slots A22 disposed on the substrate A21.

[0120] Since coupling slot A22 can radiate electromagnetic waves emitted from coupling slot A16 to the radiating layer A3, the number of coupling slots A22 can be equal to the number of coupling slots A16. In this embodiment, the ground layer A2 can be provided with eight coupling slots A22. Multiple coupling slots A22 can be arranged in a straight line, and the direction of the slot array formed by the arrangement of multiple coupling slots A22 can be the same as the direction of the slot array formed by the arrangement of multiple coupling slots A16. In this embodiment, the direction of the slot array formed by the arrangement of eight coupling slots A22 is transverse, and the direction of the slot array formed by the arrangement of eight coupling slots A16 is also transverse. The direction of the slot array formed by the arrangement of eight coupling slots A22 can be the same as the direction of the slot array formed by the arrangement of eight coupling slots A16. For example, to improve the transmission efficiency of electromagnetic waves in the Rotman lens antenna A, the shape of the multiple coupling slots A22 can be the same as that of the multiple coupling slots A16. In this embodiment, if the multiple coupling gaps A16 are rectangular, then the multiple coupling gaps A22 can also be rectangular. Of course, the multiple coupling gaps A22 can also be other shapes, and this embodiment does not limit them.

[0121] Figure 6 This is another schematic diagram of a Rotman lens antenna in an embodiment of this application. For example... Figure 6 As shown, the radiating layer A3 of the Rotman lens antenna A may include a substrate A31 and a plurality of isolation strips A32, a plurality of radiation slots A33, and a plurality of coupling slots A34 disposed on the substrate A31. For example, the radiating layer A3 may include 7 isolation strips A32 and 8 radiation slots A33. In other embodiments, the number of isolation strips A32 and radiation slots A33 in the radiating layer A3 may also be other combinations.

[0122] Multiple isolation bands A32 are used to form multiple transmission channels of the radiation layer A3. The multiple isolation bands A32 can be arranged parallel to each other, and two adjacent isolation bands A32 can form one transmission channel of the radiation layer A3. In this embodiment, electromagnetic waves from the coupling gap A22 can be transmitted to the transmission channel of the radiation layer A3 through the coupling gap A34. The radiation layer A3 can have seven isolation bands A32 and eight transmission channels.

[0123] Multiple coupling slots A34 can transmit electromagnetic waves from multiple coupling slots A22 in the formation A2 to corresponding radiation slots A33. The multiple coupling slots A34 can be arranged in a straight line, and the direction of the slot array formed by the arrangement of the multiple coupling slots A34 can be perpendicular to the setting direction of the multiple isolation strips A32. In this embodiment, the direction of the slot array formed by 8 coupling slots A34 is transverse, and the setting directions of the 7 isolation strips A32 are each longitudinal, and the direction of the slot array formed by the 8 coupling slots A34 can be perpendicular to the setting direction of the 7 isolation strips A32. For example, the multiple coupling slots A34 can all be rectangular or square, etc. Of course, the multiple coupling slots A34 can also be other shapes, which are not limited in this embodiment. In this embodiment, the multiple coupling slots A34 are all rectangular. For example, the distance between two adjacent coupling slots A34 can be half the wavelength of the electromagnetic wave.

[0124] Multiple radiating slots A33 are used to transmit electromagnetic waves from the transmission channel of the feed layer A3 to the electronic device 2. The multiple radiating slots A33 can be arranged in a straight line, and the direction of the slot array formed by the multiple radiating slots A33 can be perpendicular to the direction of the slot array formed by the multiple coupling slots A34. In this embodiment, the direction of the slot array formed by the multiple radiating slots A33 is vertical, the direction of the slot array formed by the eight coupling slots A34 is horizontal, and the direction of the slot array formed by the multiple radiating slots A33 is perpendicular to the direction of the slot array formed by the eight coupling slots A34. Exemplarily, the multiple radiating slots A33 can also be rectangular or square, etc. Of course, the multiple radiating slots A33 can also be other shapes, which are not limited in this embodiment. In this embodiment, the multiple radiating slots A33 are rectangular. Since the longitudinal direction of the radiating slit A33 does not cut the current, the center of the radiating slit A33 is always at the position of maximum voltage or current, which allows electromagnetic waves to radiate outward through multiple radiating slits A33.

[0125] The Rotman lens antenna A provided in this application embodiment can be fed via a single feed port. That is, among the multiple input feed ports (1411, 1412, ..., 141N) of the feed layer A1, one input feed port can input electromagnetic waves and transmit them to the planar lens A13.

[0126] Figure 7 This is a simulation diagram of the electromagnetic wave corresponding to a single feed port in the Rotman lens antenna of this application embodiment. Figure 8 This is another simulation diagram of the electromagnetic wave corresponding to the single feed port of the Rotman lens antenna in the embodiments of this application. Figure 7The white area at the bottom center is the selected input feed A12, while the white areas in the middle and top are the waveforms of the electromagnetic waves converted by the plane lens A13. Figure 8 The white area in the lower left corner is the selected input feed A12, and the white areas in the middle, top, and right corners are the waveforms of the electromagnetic waves converted by the plane lens A13.

[0127] In this embodiment, the electromagnetic wave generating module 12 may include a generating unit, an attenuation unit, a filtering unit, and an amplification unit that are connected in sequence. The attenuation unit may also be electrically connected to the control module 11, and the amplification unit may also be electrically connected to the feed port selection module 13.

[0128] The generating unit can be used to generate electromagnetic waves. The attenuation unit can be used to control the amplitude of the electromagnetic waves. The filtering unit is used to filter the electromagnetic waves after amplitude control. The amplification unit can be used to amplify the filtered electromagnetic waves and transmit the amplified electromagnetic waves to a feed port selection switch in the feed port selection module 13.

[0129] This application also provides a power supply system. Figure 9 This is a schematic diagram of a power supply system provided in an embodiment of this application. Figure 9 As shown, the power supply system 10 may include a power supply device 1 and an electronic device 2. The power supply device 1 can be used to transmit electromagnetic waves to power the electronic device 2. The feed port selection module 13 of the power supply device 1 may include multiple feed port selection switches (131, 132, ..., 13N). The feed port selection module 13 includes feed port selection switches 131, 132, ..., and 13N. In this embodiment, the feed port selection module 13 includes N feed port selection switches. Wherein, N can be greater than or equal to 2. The radio frequency antenna module 14 of the power supply device 1 may include multiple input feed ports (1411, 1412, ..., 141N) and a radio frequency unit 142. In this embodiment, the radio frequency antenna module 14 may include N input feed ports, and the N input feed ports can be electrically connected to the N feed port selection switches one-to-one.

[0130] The operating states of power supply device 1 may include matching state, scanning state, power supply state, and standby state. The operating states of electronic device 2 may include detection state, matching state, scanning state, and power supply state.

[0131] Power supply device 1 can be used to control multiple feed port selection switches (131, 132, ..., 13N). Power supply device 1 can transmit electromagnetic waves to electronic device 2 through multiple input feed ports (1411, 1412, ..., 141N) and radio frequency unit 142, thereby operating in matching state, scanning state, power supply state, or standby state. Electronic device 2 transmits signals to power supply device 1 based on the electromagnetic waves transmitted by power supply device 1, thereby also operating in detection state, matching state, scanning state, or power supply state.

[0132] Figure 10 Another schematic diagram of the power supply system provided in an embodiment of this application. For example... Figure 10 As shown, the electronic device 2 may include a power receiving module 21, a power conversion module 22, and a control module 23. The control module 23 may include a control unit 231 and a communication unit 232. The power receiving module 21 receives electromagnetic waves transmitted by the radio frequency unit 142 and transmits them to the power conversion module 22. The control unit 231 in the control module 23 controls the power conversion module 22 to transmit the distance signal or status signal of the electronic device 2 to the communication unit 112 via the communication unit 232. Alternatively, the control unit 231 controls the power supply device 1 to operate in a matching state based on the online signal of the power supply device 1 provided by the communication unit 232. The power conversion module 22, under the control of the control module 23, converts the electromagnetic waves into power supply power for the electronic device 2 to use for power generation and provides it to the energy storage module 25. The communication unit 232 transmits the distance signal or status signal of the electronic device 2 to the communication unit 112, or provides the online status of the power supply device 1 to the control unit 231. The distance signal can be used to indicate the distance between the electronic device 2 and the power supply device 1. The status signal can be used to indicate at least one of the operating status of the electronic device 2 and the received signal strength indication information, wherein the operating status of the electronic device 2 may include the scanning status of the electronic device 2 or the power supply status of the electronic device 2.

[0133] For example, the communication unit 232 can be a monopole antenna or a Bluetooth antenna, etc. Of course, the communication unit 232 can also be of other types, and this application embodiment does not limit it.

[0134] For example, the power receiving module 21 can be a patch antenna or a printed antenna, etc. Of course, the power receiving module 21 can also be other types, and this application embodiment does not limit it.

[0135] For example, electronic device 2 can be a mobile phone, laptop, safety helmet, etc., and electronic device 2 can include energy storage module 25. Electronic device 2 can also be a relay device between power supply device 1 and terminal devices such as mobile phones. Power supply device 1 can supply power to electronic device 2, and electronic device 2 can realize wireless power supply to terminal devices such as mobile phones. In the embodiments of this application, as Figure 10 As shown, the electronic device 2 may include an energy storage module 25.

[0136] In this embodiment, the electronic device 2 can operate in a detection state. The control unit 231 controls the power conversion module 22 to detect the power supply of the energy storage module 25, thereby controlling the electronic device 2 to operate in the detection state. The control unit 231 can send a power supply completion signal to the power supply device 1 through the communication unit 232, thereby controlling the electronic device to operate in the detection state. The power supply completion signal can be used to indicate that the electronic device 2 has completed power supply.

[0137] In this embodiment, the electronic device 2 can operate in a matching state. The control unit 231 can send a distance signal or a status signal to the power supply device 1 through the communication unit 232, thereby controlling the electronic device 2 to operate in the matching state.

[0138] In this embodiment, the electronic device 2 can operate in a scanning state. The control unit 231 can send a power supply signal of the electronic device 2 through the communication unit 232, thereby controlling the electronic device 2 to operate in the scanning state.

[0139] In this embodiment, the electronic device 2 can operate in a powered-on state. The control unit 231 can send a power change signal of the electronic device 2 through the communication unit 232, thereby controlling the electronic device 2 to operate in the powered-on state. In the powered-on state, the power conversion module 22, under the control of the control unit 231, converts electromagnetic waves into power supply power for the electronic device 2 to use electromagnetic waves for power supply and provides it to the energy storage module 25.

[0140] The power supply system 10 provided in this application embodiment utilizes the wide-range scanning of electromagnetic waves to improve the transmission efficiency of electromagnetic waves in space, thereby improving the power supply efficiency of electronic device 2 and ensuring the power supply freedom of electronic device 2.

[0141] This application provides a method for a power supply system 10, wherein the power supply system 10 can be referred to the above description, and will not be repeated in this application.

[0142] Figure 11 This is a schematic diagram of a method for a power supply system 10 provided in an embodiment of this application. For example... Figure 11 As shown, the operation process 100 of the power supply system 10 includes the following steps:

[0143] Step S101: Power supply equipment 1 is in standby mode.

[0144] Step S102: Power supply device 1 operates in the matching state. In one embodiment, power supply device 1 switches from standby state to matching state. In another embodiment, power supply device 1 switches from scanning state and power supply state to matching state.

[0145] Step S103: Determine whether the power supply device 1 has been matched with the electronic device 2.

[0146] If matching is not completed, power supply device 1 can operate in standby mode or continue operating in matching mode. In one embodiment, if matching is not completed, power supply device 1 switches from matching mode to standby mode. In one embodiment,

[0147] If the matching is not completed, power supply device 1 will continue to operate in the matching state.

[0148] If matching is completed, power supply device 1 can operate in scanning state or power supply state. In one embodiment, if matching is completed, power supply device 1 switches from matching state to scanning state. In another embodiment, if matching is completed, power supply device 1 switches from matching state to power supply state.

[0149] Step S104: Power supply device 1 is in scanning mode.

[0150] Step S105: Determine whether power supply device 1 has received a power supply signal. If yes, the power supply device can switch from scanning state to power supply state. If no, the power supply device can continue to operate in scanning state.

[0151] Step S106: Power supply equipment 1 is in power supply state.

[0152] Step S107: Determine whether power supply device 1 has received a power change signal. If yes, power supply device 1 switches from power supply state to scanning state. If no, power supply device 1 continues to operate in power supply state.

[0153] Step S108: Determine whether power supply device 1 has received a power supply completion signal. If yes, power supply device 1 switches from power supply state to standby state or matching state. If no, power supply device 1 continues to operate in power supply state.

[0154] In one embodiment, power supply device 1 can switch from a standby state to a paired state. When operating in the paired state, power supply device 1 broadcasts an online signal to electronic device 2. Electronic device 2 can then transmit a distance signal to power supply device 1 based on the distance signal sent by the online signal.

[0155] If power supply device 1 receives a distance signal from electronic device 2 and the distance between electronic device 2 and power supply device 1 is greater than a preset distance threshold, power supply device 1 can determine that the pairing between electronic device 2 and power supply device 1 has failed. Accordingly, power supply device 1 can switch from the pairing state to the standby state or continue operating in the pairing state.

[0156] If power supply device 1 receives a distance signal from electronic device 2 and the distance between electronic device 2 and power supply device 1 is less than or equal to a preset distance threshold, power supply device 1 can determine that electronic device 2 and power supply device 1 have successfully matched. Accordingly, power supply device 1 can switch from matching state to scanning state or power supply state.

[0157] If power supply device 1 does not receive a distance signal from electronic device 2, power supply device 1 may continue to broadcast the online signal. Accordingly, power supply device 1 continues to operate in the matching state.

[0158] In one embodiment, the electronic device 2 can actively pair with the power supply device 1. Specifically, the electronic device 2 sends a distance signal or a status signal to the power supply device 1. The distance signal can indicate the distance between the electronic device 2 and the power supply device 1, and the status signal can indicate at least one of the following: the operating status of the electronic device 2 and received signal strength indication information. If the power supply device 1 receives the distance signal and the distance between the electronic device 2 and the power supply device 1 exceeds a preset distance threshold, the electronic device 2 can determine that the pairing has failed. Accordingly, the power supply device 1 can switch from the pairing state to a standby state or continue operating in the pairing state.

[0159] If power supply device 1 receives a distance signal and the distance signal between electronic device 2 and power supply device 1 is less than or equal to a preset distance threshold, electronic device 2 can determine that electronic device 2 and power supply device 1 have successfully matched. Accordingly, power supply device 1 can switch from matching state to scanning state or power supply state.

[0160] The power supply device 1 and electronic device 2 provided in this application embodiment can also be matched in other ways, which will not be listed one by one in this application embodiment.

[0161] In one embodiment, the power supply device 1 can send a power-on request to the electronic device 2. Accordingly, the electronic device can switch from a standby state or a paired state to a powered state based on the power-on request.

[0162] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0163] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0164] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0165] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0166] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0167] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0168] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0169] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A power supply device for transmitting electromagnetic waves to power electronic equipment, characterized in that, The power supply equipment includes a control module, an electromagnetic wave generation module, a feed port selection module, and a radio frequency antenna module; The electromagnetic wave generating module is used to generate the electromagnetic wave according to the control of the control module; The feed port selection module includes multiple feed port selection switches, and one of the multiple feed port selection switches is turned on according to the control of the control module. The radio frequency antenna module includes multiple input feed ports and radio frequency units, and the multiple input feed ports are connected to the multiple feed port selection switches in a one-to-one correspondence. The control module is used to control the power supply device to operate in scanning state or power supply state according to the signal sent by the electronic device; In the scanning state, the control module controls the multiple feed port selection switches to be turned on respectively, and transmits the electromagnetic wave through the multiple input feed ports and the radio frequency unit; in the power supply state, the control module controls one of the multiple feed port selection switches to be turned on individually, and transmits the electromagnetic wave through the input feed port corresponding to the turned-on feed port selection switch and the radio frequency unit.

2. The power supply equipment according to claim 1, characterized in that, The control module is used for: Control the power supply equipment to operate in the scanning state; When the plurality of feed port selection switches are turned on, the electromagnetic wave is transmitted to the electronic device through the turned-on plurality of feed port selection switches, the plurality of input feed ports and the radio frequency unit; The system receives a power supply signal sent by the electronic device and controls one of the multiple feed port selection switches to be turned on individually based on the power supply signal; the power supply signal is used to indicate the power supply of the electronic device using the electromagnetic wave for power supply.

3. The power supply equipment according to claim 1 or 2, characterized in that, The control module is used for: Control the power supply equipment to operate in the power supply state; When one of the multiple feed port selection switches is turned on, the electromagnetic wave is transmitted through the turned-on feed port selection switch, the input feed port corresponding to the turned-on feed port selection switch, and the radio frequency unit to power the electronic device; The system receives a power change signal sent by the electronic device and controls the power supply device to switch from the power supply state to the scanning state based on the power change signal. The power change signal is used to indicate the change in the power supply power of the electronic device through the activated feed port selection switch, the input feed port corresponding to the activated feed port selection switch, and the electromagnetic waves sent by the radio frequency unit.

4. The power supply equipment according to claim 1, characterized in that, The control module is used for: When the power supply device is operating in the power supply state, it receives a power supply completion signal sent by the electronic device, the power supply completion signal being used to indicate that the electronic device has completed power supply; In response to the power supply completion signal, the power supply equipment is controlled to operate in a standby state; In the standby state, the control module controls the feed port selection switch to turn off or controls the electromagnetic wave generating module to stop generating electromagnetic waves.

5. The power supply equipment according to claim 1, characterized in that, The control module is used for: Control the power supply equipment to operate in a matching state; During the matching state, an online signal is broadcast to the electronic device; The device receives a distance signal sent by the electronic device based on the online signal, and controls the power supply device to operate in the scanning state, the power supply state, or the standby state based on the distance signal; the distance signal is used to indicate the distance between the electronic device and the power supply device.

6. The power supply equipment according to claim 1, characterized in that, The radio frequency antenna module includes a Rotman lens antenna, which includes a stacked feed layer, a ground layer, and a radiating layer, and the feed layer includes the plurality of input ports.

7. A method for a power supply system, the power supply system comprising a power supply device and an electronic device, the power supply device being used to transmit electromagnetic waves to power the electronic device, the power supply device having a feed port selection module comprising a plurality of feed port selection switches, and the power supply device having a radio frequency antenna module comprising a plurality of input feed ports and a radio frequency unit, the plurality of input feed ports being connected one-to-one with the plurality of feed port selection switches; characterized in that, The method includes: The power supply equipment generates the electromagnetic waves; The power supply equipment controls the multiple feed port selection switches to be turned on respectively, and transmits the electromagnetic waves to the electronic device through the multiple input feed ports and the radio frequency unit, and operates in scanning mode according to the signals transmitted by the electronic device; or, The power supply device controls one of the multiple feed port selection switches to be turned on individually. The electromagnetic wave is sent to the electronic device through the input feed port corresponding to the turned-on feed port selection switch and the radio frequency unit, and the device operates in the power supply state according to the signal sent by the electronic device.

8. The method according to claim 7, characterized in that, The method includes: The power supply equipment is operating in the scanning state; When the plurality of feed port selection switches are turned on, the power supply device transmits the electromagnetic wave to the electronic device through the turned-on plurality of feed port selection switches, the plurality of input feed ports and the radio frequency unit; The power supply device receives the power supply signal sent by the electronic device, and controls one of the multiple feed port selection switches to be turned on individually according to the power supply signal; the power supply signal is used to indicate the power supply of the electronic device using the electromagnetic wave for power supply.

9. The method according to claim 7 or 8, characterized in that, The method includes: The power supply equipment operates in the power supply state; When one of the multiple feed port selection switches is turned on, the power supply device transmits the electromagnetic wave to power the electronic device through the turned-on feed port selection switch, the input feed port corresponding to the turned-on feed port selection switch, and the radio frequency unit. The power supply device receives a power change signal sent by the electronic device, and controls the power supply device to switch from the power supply state to the scanning state according to the power change signal; the power change signal is used to indicate the change in the power supply power of the electronic device through the activated feed port selection switch, the input feed port corresponding to the activated feed port selection switch, and the electromagnetic waves sent by the radio frequency unit.

10. The method according to claim 7, characterized in that, The method includes: When the power supply device is operating in the power supply state, the power supply device receives a power supply completion signal sent by the electronic device, the power supply completion signal being used to indicate that the electronic device has completed power supply; The power supply equipment controls itself to operate in standby mode based on the power supply completion signal; In the standby state, the power supply device controls the feed port selection switch to turn off or controls the electromagnetic wave generating module of the power supply device to stop generating electromagnetic waves.

11. The method according to claim 7, characterized in that, The method includes: The power supply equipment is operating in a matched state; In the matching state, the power supply device broadcasts an online signal to the electronic device; The power supply device receives a distance signal sent by the electronic device based on the online signal, and controls the power supply device to operate in the scanning state, the power supply state, or the standby state based on the distance signal; the distance signal is used to indicate the distance between the electronic device and the power supply device.

12. A power supply system, comprising electronic equipment and a power supply device as described in any one of claims 1 to 6, the power supply device being used to transmit electromagnetic waves to power the electronic equipment, characterized in that, The power supply device is used to: control the plurality of feed port selection switches to be turned on respectively, transmit the electromagnetic waves generated by the power supply device to the electronic device through the plurality of input feed ports and the radio frequency unit, and operate in a scanning state according to the signal transmitted by the electronic device; or, control one of the plurality of feed port selection switches to be turned on individually, transmit the electromagnetic waves to the electronic device through the input feed port corresponding to the turned-on feed port selection switch and the radio frequency unit, and operate in a power supply state according to the signal transmitted by the electronic device.

13. The power supply system according to claim 12, characterized in that, The electronic device sends a distance signal to the power supply device, the distance signal being used to indicate the distance between the electronic device and the power supply device; The power supply device receives the distance signal and operates in the scanning state, the power supply state, or the standby state according to the distance signal.

14. The power supply system according to claim 12 or 13, characterized in that, The electronic device sends a status signal to the power supply device. The status signal is used to indicate at least one of the electronic device's operating status and received signal strength indication information. The operating status includes scanning status or power supply status. The power supply device receives the status signal and operates in the scanning state, the power supply state, or the standby state according to the status signal.

Images