CN108377036B - Remote controllable multi-terminal wireless charging system - Google Patents
Remote controllable multi-terminal wireless charging system Download PDFInfo
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- CN108377036B CN108377036B CN201810231325.9A CN201810231325A CN108377036B CN 108377036 B CN108377036 B CN 108377036B CN 201810231325 A CN201810231325 A CN 201810231325A CN 108377036 B CN108377036 B CN 108377036B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of wireless charging, and discloses a remote controllable multi-terminal wireless charging system, which comprises a main transmitting device and one or more sub receiving devices, wherein the main transmitting device is connected with the sub receiving devices; the main transmitting equipment integrates an MCU, an IO module, a radio frequency communication module, a Bluetooth module, a power control circuit and a resonant transmitting circuit; the sub-receiving equipment integrates an MCU, an IO module, a radio frequency communication module, a resonance receiving and rectifying circuit and a power control circuit; the main sending equipment transmits wireless electric energy to the sub receiving equipment, and the operation state of the sub receiving equipment is controlled through internal network communication; the upper computer and the main sending equipment establish communication connection through Bluetooth to realize external control, and the remote end and the upper computer realize remote control of the whole device through the Internet; the problem that the load cannot move freely when the existing wireless charging equipment is charged is solved; the combination of the internal communication mode and the external communication mode enables the system to have openness, expansibility and flexibility, and the application field and the application range of the wireless charging system are expanded.
Description
Technical Field
The invention belongs to the technical field of wireless charging, and particularly relates to a remote controllable multi-terminal wireless charging system.
Background
Wireless Power Transfer (WPT) is a technology for realizing energy transmission between a Power supply and electric equipment in a non-contact Wireless manner, and is widely applied to the fields of electric automobiles, medical instruments, small household appliances and the like. In daily life, the most typical application of wireless charging technology is a one-to-one wireless charging system for mobile phones, which mainly comprises a charging base (wireless power transmitter) and a charging adapter (wireless power receiver). The basic working principle is that the transmitter converts electric energy into an alternating electromagnetic field and transmits the alternating electromagnetic field outwards through a coil, and the receiving coil rectifies collected electromagnetic energy to supply power to a load (a mobile phone) in an electromagnetic induction or electromagnetic resonance mode; in order to realize the charging state control, the transceivers also need to communicate messages and send control commands, and the structural schematic diagram refers to fig. 1. The wireless charging system device is characterized in that a one-to-one working mode is adopted, a transmitter can only transmit power to one receiver, and a plurality of loads cannot be charged simultaneously. In addition, the message communication between the transmitter and the receiver adopts a one-to-one communication mode, namely, a transmission channel is established through electromagnetic coupling between the transmitting coil and the receiving coil to realize data transmission.
Chinese patent CN107257168 discloses a one-to-many wireless charging method, in which a transmitting end and a receiving end transmit modulated load characteristic signals in a coupling manner between transmitting and receiving coils, and the load characteristic signals are used to control the transmitting power of the system.
The existing wireless charging technology adopts electromagnetic coupling to transmit signals in a communication mode. In a communication system using electromagnetic coupling, the performance of the communication system is affected by the coupling coefficient of the transmitting and receiving coils. With the increase of the distance between the two coils and the center offset distance, the coupling coefficient is reduced, the signal attenuation is fast, and in order to keep the stability of the communication signal, the transmitting and receiving coils are required to be in a short-distance and static state. Therefore, the system based on the coil coupling communication may have a problem of unstable communication control when wirelessly charging the mobile load. In addition, from the view point of communication objects and range, the communication implementation of the wireless charging system in the prior art is limited to the internal communication between the transmitter and the receiver, but not to the external communication, so that the application thereof is limited.
Disclosure of Invention
In view of the above defects or improvement needs in the prior art, the present invention provides a remote controllable multi-terminal wireless charging system, which aims to overcome the problems of the prior wireless charging device that the charging load is not movable during charging and the external control cannot be realized.
To achieve the above object, according to one aspect of the present invention, there is provided a remote controllable multi-terminal wireless charging system including a main transmitting device, one or more sub receiving devices;
the main transmitting device is provided with a transmitting coil, and the sub-receiving devices are provided with receiving coils; the size of the receiving coil is smaller than that of the transmitting coil, and the energy receiving range of the receiving coil is within the projection range of the transmitting coil; the energy is remotely transferred between the main transmitting device and the sub-receiving device in a magnetic coupling mode through matching a small-size receiving coil with a large-size transmitting coil;
one side of each sub receiving device is provided with an interface communicated with the main sending device, and the sub receiving devices and the main sending device are internally communicated in a radio frequency communication mode through the interfaces; the other side of the sub receiving equipment is provided with an interface for connecting a load to supply power to the load; the main sending equipment is provided with a communication interface used for communicating with an upper computer and communicates with a remote end through the upper computer and the internet.
Preferably, in the remote controllable multi-terminal wireless charging system, the main transmitting device integrates a bluetooth module, a first radio frequency communication module, a first MCU, a first power control circuit, a resonant transmitting circuit, and a transmitting coil;
the Bluetooth module, the first radio frequency communication module and the first MCU are connected in a bidirectional way; the input end of the power control circuit is connected with the first MCU, and the output end of the power control circuit is connected with the input end of the resonant transmission circuit; the transmitting coil is connected with the output end of the resonant transmitting circuit;
the Bluetooth module is used for communication between the wireless charging system and an external upper computer;
the first radio frequency communication module is used for communicating with the sub receiving equipment;
the first MCU is used for controlling the first power control circuit and the Bluetooth module to ensure that the main transmitting equipment works normally;
the first power control circuit is used for adjusting the total transmitting power of the system under the control action of the first MCU;
the resonance transmitting circuit is used for generating resonance current and exciting the transmitting coil;
the sending coil is used for converting the resonance current into an alternating magnetic field and emitting the alternating magnetic field outwards.
Preferably, the main transmitting device of the remote controllable multi-terminal wireless charging system further includes a first IO module and a human-computer interaction control interface connected to the first IO module; the first IO module is in bidirectional connection with the first MCU; the first IO module is used for receiving an instruction input through the human-computer interaction control interface, sending the instruction to the MCU, and sending the instruction of the first MCU to the first human-computer interaction control interface.
Preferably, in the remote controllable multi-terminal wireless charging system, the sub-receiving device integrates a second MCU, a second radio frequency communication module, a second power control circuit, a rectifying circuit, a resonant receiving circuit, and a receiving coil;
the second radio frequency communication module is in bidirectional connection with the second MCU; the input end of the second power control circuit is connected with the second MCU; one input end of the rectifying circuit is connected with the output end of the second power control circuit, and the other input end of the rectifying circuit is connected with the output end of the resonance receiving circuit; the input end of the resonance receiving circuit is connected with the receiving coil; the output end of the rectifying circuit is used as an interface of the sub receiving equipment for connecting a load;
the second radio frequency communication module is used for communicating with the main sending equipment;
the receiving coil is used for receiving the alternating magnetic field energy signal transmitted by the transmitting coil of the main transmitting equipment;
the resonance receiving circuit is used for converting the magnetic field energy of the receiving coil into oscillation current to be output;
the rectification circuit is used for converting the high-frequency oscillation current output by the resonance receiving circuit into stable direct current output;
the second power control circuit is used for adjusting the load driving power under the control of the second MCU;
and the second MCU is used for controlling the charging state of the load according to the communication instruction of the received intranet.
Preferably, in the remote controllable multi-terminal wireless charging system, the sub-transmitting device further includes a second IO module and a second human-computer interaction control interface connected to the second IO module;
the second IO module is in bidirectional connection with the second MCU and used for receiving the instruction input through the second human-computer interaction control interface, sending the instruction to the second MCU and sending the instruction of the second MCU to the second human-computer interaction control interface.
Preferably, in the remote controllable multi-terminal wireless charging system, the back plates of the main transmitting device and each sub receiving device are covered with an electromagnetic shielding material film with a thickness of not more than 2 mm.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) according to the remote controllable multi-terminal wireless charging system, the large-size sending coil is matched with the small-size receiving coil, the sending device is large in transmitting power and wide in space radiation range, more load devices can be driven, and the sub receiving coil has a large energy receiving range; the load can move freely in the projection range of the main transmitting coil without affecting the charging efficiency during charging, and the problem that the load cannot move freely during charging of the wireless charging equipment in the prior art is solved;
(2) the remote controllable multi-terminal wireless charging system provided by the invention constructs a two-layer network consisting of an equipment intranet and the internet and a three-level control consisting of an internal control, an external control and a remote control; the internal communication network which is formed by special radio frequency communication modules and is different from a magnetic coupling communication mode is used for realizing the mutual communication of the main sending equipment and the sub receiving equipment and the internal control of the charging system; the system device provides an external communication interface, and realizes external control and remote control through Bluetooth or Wi-Fi communication and the Internet; the combination application of the internal communication mode and the external communication mode enables the system to have openness, expansibility and flexibility, thereby expanding the application field and the application range of the wireless charging system; compared with the prior technical method based on coil coupling communication, the communication scheme of the invention has obvious advantages in the aspects of communication distance, reliability, manufacturing cost, expansibility, remote controllability and the like;
(3) the remote controllable multi-terminal wireless charging system provided by the invention realizes the simultaneous wireless charging of a plurality of loads, each load can freely move in a certain range during charging, and the one-to-many movable remote controllable wireless charging system improves the output power of the wireless charging system, enhances the controllability of the system and reduces the total cost of the system; in public places such as hotels, airports and office meeting rooms, wireless charging of a plurality of movable loads can be achieved, more convenience is provided for life of people, and a further development space is provided for a novel business service application mode (such as mobile phone sharing wireless charging).
Drawings
FIG. 1 is a schematic diagram of a wireless charging device according to the prior art;
fig. 2 is a schematic diagram illustrating an embodiment of a remotely controllable multi-terminal wireless charging system provided by the present invention;
fig. 3 is a schematic diagram of a main transmitting device of an embodiment of the remotely controllable multi-terminal wireless charging system provided in the present invention;
fig. 4 is a schematic architecture diagram of a sub-receiving device of a wireless charging system provided by an embodiment;
fig. 5 is a schematic communication principle diagram of a two-layer network three-level control of the wireless charging system provided by the embodiment;
fig. 6 is a schematic plan view of a transceiver coil adopted by the wireless charging system according to the embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The remote controllable multi-terminal wireless charging system provided by the embodiment is shown in fig. 2 and comprises a main transmitting device, one or more sub receiving devices; the main transmitting device and the sub receiving device remotely transfer energy in a magnetic coupling mode; one side of each sub receiving device is provided with an interface communicated with the main sending device; the other side is provided with an interface for connecting a load to supply power to the load; the main sending equipment is provided with a communication interface used for communicating with an upper computer, and the wireless charging system is communicated with a remote end through the upper computer and the internet.
Referring to fig. 3, the main transmitting device in the embodiment integrates an HC-06 bluetooth module, an nRF24l01 radio frequency communication module, an IO module, an MCU, a power control circuit, a resonant transmitting circuit, and a transmitting coil;
the HC-06 Bluetooth module, the nRF24l01 radio frequency communication module and the IO module are connected with the MCU in a bidirectional way; the input end of the power control circuit is connected with the MCU, and the output end of the power control circuit is connected with the input end of the resonance transmitting circuit; the transmitting coil is connected with the output end of the resonant transmitting circuit;
the HC-06 Bluetooth module is used for communication between the wireless charging system and an external upper computer; the nRF24l01 radio frequency communication module is used for communication with the sub receiving equipment;
the IO module is used for a key screen input/output interface controlled by man-machine interaction;
the MCU is used for controlling the IO module, the power control circuit and the Bluetooth module and ensuring the normal work of the transmitting equipment; the power control circuit is used for adjusting and controlling the total transmitting power of the system under the control action of the MCU; the resonance transmitting circuit is used for generating resonance current and exciting the transmitting coil; the sending coil is used for converting the resonance current into an alternating magnetic field and emitting the alternating magnetic field outwards.
The main sending equipment also provides a man-machine interaction control interface which comprises a touch screen, an operation button, a voice prompt output interface and an Led state display lamp; the touch screen and the operation buttons are used for inputting system working parameters; the voice prompt output interface is used for broadcasting the operation state information; the Led status display lamp is used to indicate an abnormal status of the apparatus.
Referring to fig. 4, the sub-receiving device in the embodiment integrates an IO module, an MCU, an nRF24l01 radio frequency communication module, a power control circuit, a rectification circuit, a resonance receiving circuit, and a receiving coil;
the nRF24l01 radio frequency communication module, the IO module and the MCU are connected in two directions; the input end of the power control circuit is connected with the MCU; one input end of the rectifying circuit is connected with the output end of the power control circuit, and the other input end of the rectifying circuit is connected with the output end of the resonance receiving circuit; the input end of the resonance receiving circuit is connected with the receiving coil; the output end of the rectification circuit is used as an interface for connecting the sub-receiving equipment with a load, and a 5V standard voltage output interface is configured in the embodiment, so that power can be supplied to the movable low-power load equipment conveniently; the output power of the single receiving device to the load is not less than 5W (the rated output voltage V is 5V, and the rated output current I is 1000 mA).
The nRF24l01 radio frequency communication module is used for communicating with the main sending equipment;
the receiving coil is used for receiving the alternating magnetic field energy signal transmitted by the transmitting coil of the main transmitting device
The resonance receiving circuit is used for converting the magnetic field energy of the receiving coil into oscillation current to be output
The rectification circuit is used for converting the high-frequency oscillation current into stable direct current for output;
the power control circuit is used for adjusting the load driving power under the control of the MCU;
the MCU is used for controlling the charging state of the load according to the communication instruction of the received intranet;
the IO module is used for connecting a key screen input/output interface controlled by human-computer interaction.
In the embodiment, the main sending equipment establishes external communication connection with an upper computer through Bluetooth equipment and establishes communication connection with a remote end through the upper computer and the Internet; remote end accessible internet and host computer realize the remote control to wireless charging system. The upper computer can communicate with the main sending equipment through Bluetooth based on an application program of a PC desktop or a smart phone so as to externally control the wireless charging system; the remote end is a remote control program and communicates with the upper computer through the internet to realize remote control of the wireless charging system.
Networking the main transmitting equipment and the sub receiving equipment through a radio frequency communication chip nRF24L01 to form an internal network; the operation state of the sub receiving equipment is controlled through internal network communication, and one main sending equipment can control the operation states of a plurality of sub receiving equipment. The electromagnetic field between the main transmitting device and the sub receiving device is transmitted and received through the transmitting coil of the main transmitting device and the receiving coil of the sub receiving device.
The working process of the remote controllable multi-terminal wireless charging system provided by the embodiment comprises power transmission and power control regulation; one main transmitting device can simultaneously transmit electric energy for six sub receiving devices; the main sending equipment sends an instruction to the sub receiving equipment through the internal communication network to control the running state of the sub receiving equipment; the upper computer and/or the remote end realize external control and/or remote control through the Bluetooth module.
The power control and regulation process is triggered and generated by some basic control commands, the control commands can be transmitted to an upper computer from a remote end through network transmission in a remote control mode, then the control commands are forwarded to a main transmitting device by the upper computer, the main transmitting device is forwarded to a certain sub receiving device through an internal network of a wireless charging system, and finally the command is executed by an MCU of the sub receiving device.
Referring to fig. 5, in the embodiment, the remote control adopts a communication scheme of two-layer network three-level control: each device integrates an nRF24l01 radio frequency communication module to form a communication node, wherein the main sending device is a main node, the sub receiving device is a sub node, and the communication nodes form an internal communication network of the wireless charging system; the Internet and the Bluetooth are connected to form an external communication network; the main node and the sub-nodes can realize remote communication with the communication distance more than or equal to 2 m.
In order to prevent electromagnetic radiation from leaking, in the embodiment, the back plates of the main transmitting device and the sub receiving device are respectively covered with electromagnetic shielding material films with the thickness not more than 2 mm.
In order to realize the simultaneous wireless charging of a plurality of movable loads, a mode of matching a small receiving coil with a large sending coil is adopted for magnetic coupling resonance energy transmission, wherein in a preferred scheme, the planar structure of the coil refers to fig. 6; the sending coil is a rounded rectangle, and the length and the width are 40cm and 25 cm; the 6 receiving coils are round rectangles, and the length and the width are 9cm and 7 cm. In the area of the main transmitting coil projection (400 mm)
250mm), the main transmitting equipment and the sub receiving equipment can realize effective energy transmission within the range that the distance d is less than or equal to 75 mm.
Because the sending coil is large, the magnetic field radiation range is wide, the receiving coil is small, and the receiving magnetic field range is relatively large, the coupling coefficient of the sending coil and the receiving coil is not influenced even if the receiving coil moves freely, and the energy transmission efficiency of the system is kept stable; by adopting the wireless charging system provided by the embodiment, the load can move freely in the projection range of the main transmitting coil during charging without influencing the charging efficiency.
The wireless charging system provided by the embodiment has the characteristics of large transmitting power, wide space radiation range and capability of driving more load devices; the transmission power of the transmission coil is related to the size of the outer diameter of the transmission coil, and the larger the size of the transmission coil, the larger the output power of the transmission coil, and the larger the number of the driving loads. According to the wireless charging system provided by the embodiment, the main transmitting device can simultaneously transmit electromagnetic energy to the N (less than or equal to 6) sub-receiving devices, and each sub-receiving device can independently receive energy without influencing the respective working efficiency.
The receiving coil has a larger energy receiving range (in the projection range of the transmitting coil), so that the free movement of the load is facilitated without obviously influencing the charging efficiency of the load, and the problem that the load cannot move freely when the wireless charging equipment is charged is solved; compared with the existing wireless charging device, the wireless charging device also has the advantages of remote control and one-to-many charging.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A remote controllable multi-terminal wireless charging system is characterized by comprising a main transmitting device and one or more sub receiving devices;
the main transmitting device is provided with a transmitting coil, and the sub receiving device is provided with a receiving coil; the size of the receiving coil is smaller than that of the transmitting coil, and the energy receiving range of the receiving coil is within the projection range of the transmitting coil; the energy is remotely transferred between the main transmitting device and the sub-receiving device in a magnetic coupling mode through matching a small-size receiving coil with a large-size transmitting coil;
one side of each sub receiving device is provided with an interface communicated with the main sending device, and the sub receiving devices and the main sending device are internally communicated in a radio frequency communication mode through the interfaces; the other side of the sub receiving equipment is provided with an interface for connecting a load to supply power to the load; the main sending equipment is provided with a communication interface for communicating with an upper computer and is communicated with a remote end through the upper computer and the internet;
the main transmitting equipment integrates a Bluetooth module, a first radio frequency communication module, a first MCU, a first power control circuit, a resonance transmitting circuit and a transmitting coil;
the Bluetooth module and the first MCU, and the first radio frequency communication module and the first MCU are connected in two ways; the input end of the first power control circuit is connected with the first MCU, and the output end of the first power control circuit is connected with the input end of the resonant transmission circuit; the transmitting coil is connected with the output end of the resonant transmitting circuit;
the Bluetooth module is used for communication between the wireless charging system and an external upper computer;
the first radio frequency communication module is used for communicating with the sub receiving module;
the first MCU is used for controlling the first power control circuit and the Bluetooth module;
the first power control circuit is used for adjusting the total transmitting power of the system under the control of the first MCU;
the resonance transmitting circuit is used for generating resonance current and exciting the transmitting coil;
the transmitting coil is used for converting the resonance current into an alternating magnetic field and transmitting the alternating magnetic field outwards;
the sub-receiving equipment integrates a second MCU, a second radio frequency communication module, a second power control circuit, a rectifying circuit, a resonance receiving circuit and a receiving coil;
the second radio frequency communication module is in bidirectional connection with the second MCU; the input end of the second power control circuit is connected with the second MCU; one input end of the rectifying circuit is connected with the output end of the second power control circuit, and the other input end of the rectifying circuit is connected with the output end of the resonance receiving circuit; the input end of the resonance receiving circuit is connected with the receiving coil; the output end of the rectifying circuit is used as an interface of the sub receiving equipment for connecting a load;
the second radio frequency communication module is used for communicating with the main sending equipment;
the receiving coil is used for receiving the alternating magnetic field energy signal transmitted by the transmitting coil of the main transmitting equipment;
the resonance receiving circuit is used for converting the magnetic field energy of the receiving coil into oscillation current to be output;
the rectification circuit is used for converting the high-frequency oscillation current output by the resonance receiving circuit into stable direct current output;
the second power control circuit is used for adjusting the load driving power under the control of the second MCU;
the second MCU is used for controlling the charging state of the load according to the communication instruction of the received intranet;
the wireless charging system constructs a two-layer network consisting of an equipment intranet and the internet and a three-level control consisting of internal control, external control and remote control; the charging system comprises a first radio frequency communication module, a second radio frequency communication module, a charging system and a main transmitting device, wherein the internal communication network formed by the first radio frequency communication module and the second radio frequency communication module is used for realizing the mutual communication of the main transmitting device and the sub receiving devices and the internal control of the charging system, and the main transmitting device realizes the control of the running state of the sub receiving devices through the internal communication network; the upper computer is directly communicated with the main sending equipment through Bluetooth so as to externally control the wireless charging system; the remote end communicates with an upper computer through Wi-Fi or the Internet, and remote control over the wireless charging system is achieved through the upper computer; specifically, the method comprises the following steps: the power regulation instruction is sent to the upper computer from a remote end in a remote control mode, the upper computer forwards the power regulation instruction to the main sending equipment, the main sending equipment forwards the power regulation instruction to the sub receiving equipment through an internal network of the wireless charging system, and the second MCU in the sub receiving equipment executes the power regulation instruction.
2. The wireless charging system of claim 1, wherein the main transmitting device further comprises a first IO module, and a first human-machine interaction control interface connected to the first IO module;
the first IO module is in bidirectional connection with the first MCU and used for receiving an instruction input through the first human-computer interaction control interface, sending the instruction to the first MCU and sending the instruction of the first MCU to the first human-computer interaction control interface.
3. The wireless charging system of claim 2, wherein the sub-transmitting device further comprises a second IO module and a second human-computer interaction control interface connected to the second IO module;
the second IO module is in bidirectional connection with the second MCU and used for receiving an instruction input through the second human-computer interaction control interface, sending the instruction to the second MCU and sending the instruction of the second MCU to the second human-computer interaction control interface.
4. The wireless charging system according to claim 1, wherein the back plate of the main transmitting device and each of the sub-receiving devices is covered with a thin film of electromagnetic shielding material having a thickness of not more than 2 mm.
5. The wireless charging system of claim 1, wherein the transmitting coil is a rounded rectangle with a length by width of 40cm by 25 cm; the receiving coil is a rounded rectangle with a length and a width of 9cm and 7 cm.
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| CN112655229B (en) * | 2018-11-16 | 2023-05-09 | 深圳迈瑞生物医疗电子股份有限公司 | Medical equipment automatic networking system and method for automatically connecting WLAN (wireless local area network) |
| CN111490580A (en) * | 2019-01-28 | 2020-08-04 | 北京小米移动软件有限公司 | Wireless charging receiving module, wireless charging system and terminal |
| CN110518678A (en) * | 2019-08-15 | 2019-11-29 | 合肥工业大学 | A kind of multi-load wireless charging system of constant-current charge |
| EP4205258A1 (en) * | 2020-08-28 | 2023-07-05 | Covidien LP | Medical device wireless charging system |
| CN113364101A (en) * | 2021-07-13 | 2021-09-07 | 中国建筑第四工程局有限公司 | Intelligent wireless charging system and method |
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