CN114825670A

CN114825670A - Two-dimensional wireless charging and communication system

Info

Publication number: CN114825670A
Application number: CN202210533179.1A
Authority: CN
Inventors: 秦英杰; 张兵; 孙拥军
Original assignee: Zhoushan Tesila Diantong Technology Co ltd; Suzhou Zhongyifeng Photoelectric Co ltd
Current assignee: Zhoushan Tesila Diantong Technology Co ltd; Suzhou Zhongyifeng Photoelectric Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-07-29

Abstract

The two-dimensional wireless charging and communication system comprises a two-dimensional communication plate, an oscillator, a power supply port, a coupler and a communication device; the oscillator converts signals and power to be transmitted into high-frequency power and transmits the high-frequency power to the power supply port; the power supply port is arranged on the two-dimensional communication plate and transmits the received high-frequency power to the two-dimensional communication plate; the communication device comprises an interface device and a coupler, and is used for receiving high-frequency power from the two-dimensional communication plate and decomposing the high-frequency power into power and signals; an electronic device electrically connected to a communication apparatus can perform charging and communication by the present invention. The invention not only can simultaneously charge and communicate with a plurality of devices, but also has faster communication speed and less electromagnetic wave leakage.

Description

Two-dimensional wireless charging and communication system

Technical Field

The invention relates to the field of two-dimensional wireless charging and communication, in particular to a two-dimensional wireless charging and communication system.

Background

Different from traditional wired (one-dimensional) communication and wireless (three-dimensional) communication, the two-dimensional communication is a novel academic and technical field which utilizes the surface of an object as a communication medium and limits electromagnetic energy in a planar medium for communication. The two-dimensional communication can realize high-speed/broadband data transmission, can supply power at the same time, and has high safety and convenience.

The technical characteristics of the mainstream two-dimensional charging and communication technology are shown in table 1:

table 1 technical characteristics of mainstream wireless charging and communication technology

	Electromagnetic induction type (Qi standard)	Electromagnetic resonance type	Radio wave receiving type
				Physical Properties	Magnetic field	Electric field and magnetic field	Electromagnetic wave
Frequency of	Under hundreds of KHz	Several to several hundred MHz bands	Microwave oven
				Distance of propagation	A number mm or less	Tens of cm	A number m or more
Efficiency of power transmission	60～98％	50～60％	Less than 10%
				Electric power	Hundreds of W or less	Hundreds of W or less	A number W or less
Speed of communication	0 to low	×	Gao Su
				Deviation of position	Big (a)	In	Small
Electromagnetic wave leakage	Medium to large	In	Big (a)

Currently, the Qi standard has been widely used in the field of mobile phone charging.

The above mainstream technology has the advantage of convenient operation, but has the following significant disadvantages:

(1) the electromagnetic wave leakage is serious;

(2) when the device is used for communication, the speed is low;

(3) it is not suitable to charge multiple devices simultaneously.

Disclosure of Invention

In view of the above problems in the prior art, the present invention provides a two-dimensional wireless charging and communication system, which can simultaneously charge a plurality of devices, and has a higher communication speed and less electromagnetic wave leakage.

The technical scheme of the invention is as follows:

the two-dimensional wireless charging and communication system comprises a two-dimensional communication plate, an oscillator 220, a power supply port 7 and a communication device 100;

the two-dimensional communication plate comprises a dielectric layer 1, a grid conductor 2, a thin plate conductor 3 and a short-circuit conductor 23;

the dielectric layer 1 is a rectangular flat plate, the grid conductor 2 is arranged on the upper surface of the dielectric layer 1 and is of a net structure consisting of square wave antennas;

the square wave antennas are arranged in parallel on the same plane at the same interval to form the longitude lines and the latitude lines in the vertical direction of the grid conductor 2; the centerline distance PL of the two square wave antennas is smaller than the wavelength of the communication electromagnetic wave;

the cross part of the longitude lines and the latitude lines of the grid conductor 2 is in a cross-folding structure of Chinese character strokes;

the thin plate conductor 3 is a metal thin layer and covers the lower surface of the dielectric layer 1;

the short-circuit conductor 23, the grid conductor 2 and the thin plate conductor 3 are connected into a whole;

the oscillator 220 converts signals and power to be transmitted into high-frequency power and transmits the high-frequency power to the power supply port 7;

the power feeding port 7 is provided on the two-dimensional communication board, receives high-frequency power from the oscillator 220, and transmits the received high-frequency power into the dielectric layer 1;

the communication device 100 comprises an interface device 110 and a coupler;

the interface device 110 comprises a double switch, a rectifying circuit, a bypass line, a switch, a main switch 140, a signal extraction device 150, a signal power separator 160, a signal processor 170 and a power supply voltage stabilizing device 180; the number of the rectifying loops, the bypass line, the switches and the couplers is n respectively, the number of the double switches is n +1, and n is an integer greater than 2; each switch is connected with the corresponding coupler in series and then connected with the signal extraction device 150 in parallel, and the switch is controlled by the signal extraction device 150; the rectification circuits and the bypass circuits form a double-switch selection circuit, the signal extraction device 150 respectively controls switches at two sides of each double switch to be conducted with the corresponding rectification circuit and one of the corresponding bypass circuits to form a series circuit, and the switch selection circuits are connected in series and are connected in parallel with the switch-coupler circuit; the head-to-tail double switches are respectively connected with the main switch and the ground, the power supply voltage stabilizing device is respectively connected with the main switch and the signal power separator 160 in series, and the signal extracting device 150 can be selectively connected with the signal power separator 160 and the signal processor 170 or selectively directly connected with the signal processor 170; the coupler is disposed on the upper surface of the dielectric layer 1, receives high frequency power from the dielectric layer 1 through the interface device 110, and converts the high frequency power into power for charging and a signal for communication.

Further, the upper surface of the dielectric layer 1 is divided into two regions: REG1 and REG 2; REG2 is concentric and smaller than the rectangle of the shape of the upper surface of the dielectric layer 1; the region surrounded by 4 sides of REG2 and 4 sides of the upper surface of dielectric layer 1 is REG 1;

the square wave antenna comprises an antenna main body 21 and an antenna terminal 22; the antenna body 21 is in a square wave shape formed by periodically connecting a plurality of square wave units 211 and is positioned at REG 2; the antenna terminal 22 is a linear shape, connected to both ends of the antenna body 21, and located at REG 1;

the shorting conductor 23 covers the REG1 and 4 surfaces of the dielectric layer 1 parallel to the thickness direction, connects the antenna terminal 22 and the thin plate conductor 3, and connects the mesh conductor 2 and the thin plate conductor 3 as a whole.

The power feeding port 7 further includes a first power feeding body 71, a first power feeding plate 73, a first dielectric layer 75, a second power feeding body 72, a second power feeding plate 74, and a second dielectric layer 76;

the first feeding plate 73 and the first dielectric layer 75 are arranged on the lower surface of the dielectric layer 1; a first dielectric layer 75 is provided between the first feeding plate 73 and the thin plate conductor 3 so that the first feeding plate 73 is electrically isolated from the thin plate conductor 3;

the second power feeding body 72, the second power feeding plate 74 and the second dielectric layer 76 are provided on the upper surface of the dielectric layer 1 as a whole; a second dielectric layer 76 is disposed between the second feeding plate 74 and the grid conductor 2 such that the second feeding plate 74 is electrically isolated from the grid conductor 2;

the first power feeding body 71 is cylindrical and penetrates the dielectric layer 1, and the second power feeding body 72 is annular, and the rotation axes of the two bodies are overlapped; the first power feeding body 71 is electrically connected to the first power feeding plate 73; the second feeding body 72 is electrically connected to the second feeding plate 74;

further, the two-dimensional wireless charging and communication system comprises the following working steps:

s1, the signal extraction device 150 receives the transmission waves from the coupled couplers in sequence;

s2, the signal extraction device 150 receives n transmission waves through n couplers and detects the received signal strength, where n is an integer greater than 2;

s3, the signal extraction device 150 selects the receiver with the maximum received signal strength as the coupler for signal reception;

s4, the signal extraction device 150 receives the transmission wave using the selected receiver for signal reception;

s5, the signal extraction device 150 detects the received signal strength RSSIr of the received transmission wave;

s6, the signal extraction device 150 determines whether the received signal strength RSSIr is greater than the threshold TH _ RSSI; if the judgment result is yes, executing S7-S9, and if the judgment result is no, executing S10;

s7, transmitting the transmission wave received by the coupler for receiving the signal to signal power splitter 160, and signal power splitter 160 splitting the signal received from signal extraction device 150 into signal SG and power PW;

s8, the signal power splitter 160 sends the split signal SG to the signal processor 170, and the signal processor 170 performs signal processing on the received signal SG;

s9, the signal power separator 160, transmitting the separated power PW to the power source voltage stabilizer 180, which stores the power PW, and then performs S11;

s10, the signal extraction device 150 directly sends the transmission wave received by the coupler for signal reception to the signal processor 170, the signal processor 170 performs signal processing on the transmission wave received from the signal extraction device 150, and then performs S11;

s11, the transmission wave received by the coupler except the coupler for receiving the signal is rectified by the corresponding rectifying circuit, and transmitted to the power supply voltage stabilizer 180 through the main switch 140, so as to realize the storage of the electric power;

s12, the signal processor 170 generates a signal for transmission, converts the signal into an analog signal, and transmits the analog signal to the signal extraction device 150, and the signal extraction device 150 transmits the signal received from the signal processor 170 to the coupler for signal reception; the coupler for receiving the signal changes the scalar potential and/or the vector potential of the built-in electrode according to the signal for transmission received from the signal extraction device 150, and transmits the transmission wave.

The communication device 100 further receives power and signals from the two-dimensional communication plate material by the following steps:

when the signal strength between the communication device 100 and the coupler k is maximum, k is a positive integer, 1< k < n, then the following steps are performed:

s41, the signal extraction device 150 generates a control signal to control the switch connected in series with the coupler K to be switched on, the coupler K switches on the signal extraction device 150, and the other switches are switched off; controlling the double-switch selection at the two sides of the switch selection circuit where the coupler K is positioned to be conducted with the corresponding bypass circuit, and controlling the other double-switch selection to be conducted with the rectifying circuit, wherein at the moment, the rectifying circuits except the switch selection circuit where the coupler K is positioned and the bypass circuit of the switch selection circuit where the coupler K is positioned are connected into the circuit in series through the double switches;

s42, the coupler k transmits the transmission wave wvk received from the two-dimensional communication plate A to the signal extraction device 150;

s43, the signal extraction means 150 detects the received signal strength RSSIk of the transmitted wave wvk received from the coupler k, and determines whether the detected received signal strength RSSIk is greater than the threshold TH _ RSSI;

s44, if yes, transmitting the transmission wave wvk to the signal power splitter 160, the signal power splitter 160 splitting the received transmission wave wvk into a signal SG and a power PW, transmitting the split signal SG to the signal processor 170, and transmitting the split power PW to the power source voltage stabilizer 180;

s45, signal processor 170 receives signal SG from signal power splitter 160, and performs signal processing on received signal SG;

s46, the power source voltage stabilizer 180 stores the power PW received from the signal power separator 160;

s47, rectifying the transmission waves received by the couplers from the two-dimensional communication plate except the coupler k through corresponding rectifying circuits, and transmitting the rectified transmission waves to the power voltage stabilizing device 180 through a circuit consisting of the switch selection circuit and the main switch 140;

s48, the power source voltage stabilizer 180 stores the obtained electric power through the main switch 140.

Further, the method for the communication device 100 to transmit the signal from the two-dimensional communication plate material is as follows:

s51, the signal extraction device 150 generates a control signal to control the switch connected in series with the coupler K to be switched on, the coupler K switches on the signal extraction device 150, and the other switches are switched off; controlling the double switches to be conducted with the corresponding bypass lines, wherein the rectifying circuits except the switch selection circuit where the coupler K is located are not connected with the circuit; the signal extraction device 150 is connected with the signal processor 170;

s52, the signal processor 170 generates a signal to be sent, and transmits the signal to the coupler k through the signal extraction device 150 and the corresponding switch;

s53, the coupler k changes the scalar potential and/or the vector potential of the built-in electrode according to the received signal, and transmits the transmission wave to the two-dimensional communication sheet material 10.

The charging off mode of the communication apparatus 100 includes the steps of: the signal extraction device 150 generates control signals, the control switches are all disconnected, and the double switches are controlled to select and connect with the corresponding bypass lines, so that the bypass lines are all connected into the circuit through the double switches. The steps of the power off mode of the communication device 100 are: the main switch 140 is turned off.

Further, another operation mode of the two-dimensional wireless charging and communication system is that the signal extraction device 150 receives n transmission waves through n couplers and detects the received signal strength, where n is an integer greater than 2; the signal extraction device 150 selects one or more couplers of the transmission waves having the received signal strength greater than the threshold TH _ RSSI as couplers for signal reception, transmits the transmission waves received by the couplers for signal reception to the signal power splitter 160 to be separated into the signal SG and the power PW, and transmits the signal SG and the power PW to the signal processor 170 and the power stabilizer 180 for processing.

The communication device 100 provided by the invention is installed on an electronic device, is connected with a power storage device 213 through an interface device 110, and is placed on a two-dimensional communication plate to realize charging.

The beneficial technical effects of the invention are as follows:

(1) the number of charging ports is not limited, and charging can be performed at any one portion of the film-like medium;

(2) the number of communication access ports is not limited, and communication can be accessed from any part of the film-shaped media;

(3) the electromagnetic waves are not transmitted through the air, so that the interference of the electromagnetic waves to other sensitive instruments/equipment can be avoided, and meanwhile, the risk of eavesdropping of communication contents can be reduced;

(4) compared with the mainstream technology, the communication speed is higher, and the test data is shown in table 2:

TABLE 2 number of couplers and communication speed

Number of couplers	1080p/24fps	1080p/60fps
			1	375Mbps	750Mbps
2	750Mbps	1500Mbps
			3	1125Mbps	2250Mbps
4	1500Mbps	3000Mbps

When comparing the items listed in table 1 with the mainstream technology, the technical features of the present invention are shown in table 3:

TABLE 3 technical characteristics of the invention

	Electromagnetic induction type (Qi mark)Standard)
		Physical Properties	Electromagnetic wave
Frequency of	Microwave oven
		Distance of propagation	Number m
Efficiency of power transmission	Less than 60%
		Electric power	Less than 30W
Speed of communication	Ultra-high speed
		Deviation of position	Small
Electromagnetic wave leakage	Small

Drawings

Fig. 1 is a schematic plan view of a two-dimensional communications panel that does not include a shorting conductor.

Fig. 2 is a cross-sectional view of a two-dimensional communication panel that does not include a shorting conductor.

Fig. 3 is a partially enlarged view of fig. 1.

Fig. 4 is a schematic plan view of a two-dimensional communication panel including a shorted conductor.

Fig. 5 is a cross-sectional view of a two-dimensional communication panel including a shorted conductor.

Fig. 6 is a cross-sectional view of a two-dimensional communication board including a power feeding port.

Fig. 7 is a sectional view of the power feeding port.

Fig. 8 is a schematic diagram of a communication device.

Fig. 9 is a schematic diagram of the communication device receiving signals and power.

Fig. 10 is a schematic diagram of a communication device transmitting a signal.

Fig. 11 is a schematic diagram of the charging off mode of the communication apparatus.

Fig. 12 is a schematic diagram of the power off mode of the communication apparatus.

FIG. 13 is a flow chart of the operation of the present invention.

Fig. 14 is a system schematic of an embodiment.

Fig. 15 is a schematic structural view of a toy of an embodiment.

The corresponding relation between the part names and the figure numbers is as follows: 1. a dielectric layer; 2. a mesh conductor; 21. an antenna main body; 22. an antenna terminal; 211. a square wave unit; 23. a short-circuit conductor; 3. a thin plate conductor; 7. a power supply port; 71. a first power feeding body; 72. a second power feeding body; 73. a first power feeding plate; 74. a second power feeding plate; 75. a first dielectric layer; 76. a second dielectric layer; 10C, two-dimensional communication plates; 100. a communication device; 110. an interface device; 111-11 n, coupler; 121-12 n +1, double switches; 131-13 n, a rectification loop; 140. a main switch; 141-14 n, bypass line; 150. a signal extraction device; 151-15 n, a switch; 160. a signal power splitter; 170. a signal processor; 180. a power supply voltage stabilizer; 200. a two-dimensional communication system; 210. a communication device; 220. an oscillator; 213. an electrical storage device; w1, line width; w2, amplitude; GA1, line spacing; the closest distance between GA2 and the square wave antenna; PL, center distance between square wave antennas.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The embodiment is a complete two-dimensional charging and communication system, which comprises a two-dimensional communication plate, an oscillator 220, a power supply port 7 and a communication device 100. After the communication apparatus 100 is mounted on an electronic device having a charging or communication function, such as a smart phone, the two-dimensional charging and communication system can charge or communicate with the electronic device. In this embodiment, the electronic device is a toy, and charging is performed by this embodiment.

The function of the oscillator 220 is: the signal and power to be transmitted are converted into high-frequency power and supplied to the power feeding port 7.

Give electric port 7 and set up on two-dimensional communication panel, its function is: receives high frequency power from the oscillator 220, and transmits the received high frequency power into the dielectric layer 1 of the two-dimensional communication plate material.

The structure and function of the two-dimensional communication board, the power supply port 7, and the communication device 100 are detailed as follows:

(1) two-dimensional communication plate

The two-dimensional communication plate is composed of a dielectric layer 1, a grid conductor 2, a thin plate conductor 3 and a short-circuit conductor 23.

As shown in fig. 1 and 2, the dielectric layer 1 has a rectangular flat plate shape, a length of 666mm, a width of 340mm, and a thickness of 5 mm. The thickness of the dielectric layer 1 can be within the range of 4-6 mm, and the most ideal case is 5 mm. A thickness of 5mm is desirable for improving the transmission efficiency in the 2.45GHz band.

The dielectric layer 1 may be made of polyethylene foam (dielectric constant 2.3) or rubber (dielectric constant 2.2-8.0) (not limited to polyethylene foam and rubber, any dielectric may be used). The material used for the dielectric layer 1 of the example is polyethylene foam.

Of all the surfaces of the dielectric layer 1, two surfaces perpendicular to the thickness direction are an upper surface and a lower surface. As shown in fig. 1, the upper surface is divided into two regions: REG1 and REG 2. REG2 is a rectangle having a shape similar to the upper surface of dielectric layer 1 but with slightly smaller sides, whose center coincides with the center of the upper surface of dielectric layer 1 and whose sides are parallel to the sides of the upper surface of dielectric layer 1. REG2 had a length of 656mm and a width of 330 mm. The region of the "wrap" shape surrounded by 4 sides of REG2 and 4 sides of the upper surface of dielectric layer 1 is REG 1.

As shown in fig. 1, the mesh conductor 2 is a mesh structure composed of a square wave antenna, and is disposed on the upper surface of the dielectric layer 1. The material of the square wave antenna is copper, and includes an antenna main body 21 and an antenna terminal 22. The antenna main body 21 is periodically connected in a square wave shape by a plurality of square wave units 211.

As shown in fig. 3, the square wave unit 211 is shaped like a "convex" word. The line width W1 of the square wave cell 211 is 0.5mm, the amplitude W2 is 2.5mm, and the line spacing GA1 is 0.5 mm. The wire interval GA1 can be selected within the range of 0.5-1.5 mm.

The antenna terminal 22 is linear and 5mm long, and is connected to both ends of the antenna main body 21.

The 40 square wave antennas are arranged in parallel on the same plane at the same interval to form the longitude lines of the grid conductor 2. The distance refers to the distance between the center lines of the two square wave antennas, namely the center line distance PL, which is smaller than the wavelength of the communication electromagnetic wave. PL in the examples is 8 mm.

In the plane of the warp, 82 square wave antennas are arranged in parallel in a manner perpendicular to the warp and with a pitch equal to the mid-line distance PL, resulting in the weft of the grid conductor 2. The crossing points of the warp threads and the weft threads are connected together to form a net structure of the grid conductor 2.

As shown in fig. 3, the cross portion of the warp and the weft is in the shape of a 'transverse folding' structure of Chinese character strokes; the transverse folding structure of the warp is connected with the transverse folding structure of the weft to form a swastika shape.

All antenna bodies 21 are located at REG2 and all antenna terminals 22 are located at REG 1.

The grid conductor 2 weakens the mutual electromagnetic coupling between the outside and the sheet-like dielectric layer 1, so that the leakage of the evanescent field wave can be controlled within the range of the wavelength degree by controlling the thickness of the dielectric layer 1 to be sufficiently small even if the conductivity epsilon of the dielectric layer 1 is not so large.

Thus, the two-dimensional communication board can makeElectromagnetic waves are 1/(mu epsilon) ^1/2 Propagation takes place and an evanescent field is formed in its main plane (the plane formed by the grid conductor 2).

The thin plate conductor 3 is a thin metal layer and covers the lower surface of the dielectric layer 1.

As shown in fig. 4 and 5, the shorting conductor 23 covers REG1 of the

dielectric layer

1 and 4 surfaces parallel to the thickness direction and connects the antenna terminal 22 and the thin plate conductor 3, thereby connecting the mesh conductor 2 and the thin plate conductor 3 as a whole.

The short-circuit conductor 23 is made of copper or aluminum, and can prevent electromagnetic waves from leaking from the periphery and the boundary of the two-dimensional communication board.

The short-circuit conductor 23 does not need to completely cover the peripheral portion and the boundary of the front surface of the dielectric layer 1, and may be any conductor as long as it can prevent electromagnetic waves from leaking from the peripheral portion and the boundary of the two-dimensional communication plate material. The short-circuit conductor 23 may be in a mesh or stripe shape, and covers the periphery of the front surface of the dielectric layer 1 and the boundary thereof.

(2) The power feeding port 7:

as shown in fig. 6 and 7, the power feeding port 7 includes a first power feeding body 71, a first power feeding plate 73, a first dielectric layer 75, a second power feeding body 72, a second power feeding plate 74, and a second dielectric layer 76.

First feeding plate 73 and first dielectric layer 75 are provided on the lower surface of dielectric layer 1. A first dielectric layer 75 is provided between the first feeding plate 73 and the thin plate conductor 3 so that the first feeding plate 73 is electrically isolated from the thin plate conductor 3.

A second feeding plate 74 and a second dielectric layer 76 are disposed on the upper surface of the dielectric layer 1. A second dielectric layer 76 is provided between the second feeding plate 74 and the grid conductors 2 so that the second feeding plate 74 is electrically isolated from the grid conductors 2.

The first power feeding body 71 is shaped like a cylinder, and the second power feeding body 72 is shaped like a ring, and the rotation axes of the two bodies are overlapped.

The second power feeding body 72 is electrically connected to the second power feeding plate 74. The second power feeding body 72, the second power feeding plate 74 and the second dielectric layer 76 are provided on the upper surface of the dielectric layer 1 as a whole.

The first power feeding body 71 penetrates the dielectric layer 1 and is electrically connected to the first power feeding plate 73.

The first and second

power feeding bodies

71 and 72 are connected to the oscillator through a coaxial cable and an SMA coupler.

(3) The communication apparatus 100:

as shown in fig. 8, the communication device 100 includes an interface device 110 and a coupler.

The interface device 110 comprises a double switch, a rectifying circuit, a bypass line, a switch, a main switch 140, a signal extraction device 150, a signal power separator 160, a signal processor 170 and a power supply voltage stabilizing device 180.

The number of the double switches is n +1, namely the double switches 121, the double switches 122 and … and the double switches 12n + 1; the number of the rectifying circuits is n, namely the rectifying circuit 131, the rectifying circuits 132 and … and the rectifying circuit 13 n; the number of the bypass lines I is n, namely bypass line 141, bypass lines 142 and …, and bypass line 14 n; the first switch is n, namely a switch 151, switches 152 and … and a switch 15 n; wherein n is an integer greater than 2.

The number of the couplers is n in total, namely the coupler 111, the coupler 112, the coupler … and the coupler 11n, wherein n is an integer greater than 2. The coupler is provided on the upper surface of the dielectric layer 1, incorporates a rectifier circuit, receives high-frequency power from the dielectric layer 1 through the interface device 110, and converts the high-frequency power into power for charging and a signal for communication.

As shown in fig. 13, the workflow of the embodiment is as follows:

s1, the signal extraction device 150 receives the transmission wave from the couplers 111-11 n connected with the signal extraction device in sequence;

s2, the signal extraction device 150 receives n transmission waves through n couplers 111-11 n and detects the intensity of the received signals, wherein n is an integer larger than 2;

s3, the signal extraction device 150 obtains the receiver with the highest received signal strength among the n received signal strengths, and selects it as the coupler for signal reception;

s6, the signal extraction device 150 determines whether the received signal strength RSSIr is greater than the threshold TH _ RSSI; if the judgment result is yes, executing S7, and if the judgment result is no, executing S10;

s9, the signal power separator 160, which transmits the separated power PW to the power voltage stabilizer 180, where the power voltage stabilizer stores the power PW;

s10, the signal extraction device 150 will directly send the transmission wave received by the coupler for signal reception to the signal processor 170, and the signal processor 170 will process the transmission wave received from the signal extraction device 150;

s11, the transmission wave received by the coupler except the coupler for receiving the signal is rectified by the rectifying circuit 131-13 n, and the energy is supplied to the power supply voltage stabilizer 180 through the main switch 140 to realize the storage of the electric power;

s12, the signal processor 170 generates a signal for transmission, converts a digital signal for transmission into an analog signal, and transmits the analog signal to the signal extraction device 150, and the signal extraction device 150 transmits the signal received from the signal processor 170 to the coupler for signal reception; the signal receiving coupler changes the scalar potential and/or the vector potential of the built-in electrode (not shown) in accordance with the transmission signal (analog signal) received from the signal extraction device 150.

Further, as shown in fig. 9, taking the signal extraction device 150 as an example that the receiver with the highest received signal strength among the n received signal strengths is the coupler 113, in this embodiment, the method for the communication device 100 to receive power and signals from the two-dimensional communication board material is as follows:

s41, the signal extraction device 150 generates an H level signal SWD1 and transmits the H level signal SWD1 to the double switch 121, a signal SWD2 generating an [ H, H ] structure is transmitted to the double switch 122, a signal SWD3 generating an [ H, L ] structure is transmitted to the double switch 123, a signal SWD4 generating an [ L, H ] structure is transmitted to the double switch 124, signals SWD 5-SWDn generating an [ H, H ] structure are transmitted to the double switches 125-12 n, and an H level signal SWDn +1 is generated and transmitted to the double switch 12n + 1;

s42, the signal extraction device 150 generates L level signals SW1, SW2 and SW 4-SWn, and respectively transmits the L level signals SW1, SW2 and SW 4-SWn to the corresponding

switches

151, 152 and 154-15 n, and generates H level signals SW3 and transmits the H level signals SW3 to the switch 153;

s43, the double switch 121 is connected with the rectifying circuit 131 through an H level signal SWD1, the double switch 122 connects the switches on the two sides with the rectifying

circuit

131 and 132 through a signal SWD2 of an H, H structure, the double switch 123 connects the switch on the left side with the rectifying circuit 132 through a signal SWD3 of an H, L structure, the switch on the right side with the bypass line 143, the double switch 124 connects the switch on the left side with the bypass line 143 through a signal SWD4 of an L, H structure, and the switch on the right side with the rectifying circuit 134;

s44, connecting the switches on the two sides with a rectification loop through [ H, H ] structure signals SWD 5-SWDn by the double switches 125-12 n respectively; the double switch 12n +1 is connected with the rectifying loop 13n through an H level signal SWDn + 1;

s45, switches 151, 152 and 154-15 n are disconnected through L level signals SW1, SW2 and SW 4-SWn respectively. The switch 153 is turned on by an H level signal SW 3;

s46, the coupler 113 transmits the transmission wave wv3 received from the two-dimensional communication board a to the signal extraction device 150 through the switch 153;

s47, signal extraction device 150 detects the received signal strength RSSI3 of the transmitted wave wv3 received from coupler 113, determines whether the detected received signal strength RSSI3 is greater than threshold TH _ RSSI, and if so, feeds transmitted wave wv3 to signal power splitter 160;

s48, signal power separator 160 receives the transmission wave wv3 from signal extraction device 150, separates it into signal SG and power PW, transmits the separated signal SG to signal processor 170, and transmits the separated power PW to power source voltage stabilizer 180;

s49, signal processor 170 receives signal SG from signal power splitter 160, and performs signal processing on received signal SG;

s410, the power supply voltage stabilizing device 180 stores the power PW received from the signal power separator 160;

s411, the couplers 111, 112, 114-11 n receive the transmission waves wv1, wv2 and wv 4-wvn from the two-dimensional communication plate and send the received transmission waves wv1, wv2 and wv 4-wvn to the

rectification circuits

131, 132, 134-13 n;

s412, the rectifying

circuits

131, 132 and 134-13 n respectively rectify the power formed by the transmission waves wv1, wv2 and wv 4-wvn, and transmit the rectified power to the power supply voltage stabilizing device 180 through a line formed by the rectifying circuits 132, 134-13 n, the bypass circuit 143 and the main switch 140;

s413, the power source voltage stabilizer 180 stores the obtained electric power by the main switch 140.

In this way, the communication device 100 separates the received transmission wave wv3 into the signal SG and the power PW using the receiver 113 having the highest received signal strength, performs signal processing on the separated signal SG, and stores the separated power PW and the power composed of the transmission waves wv1, wv2, wv4 to wvn received by the couplers 111, 112, 114 to 11n other than the receiving coupler 113 in the power source voltage stabilizer 180.

Then, the power PW1, PW2, PW4 to PWn composed of the transmission waves wv1, wv2, wv4 to wvn received by the couplers 111, 112, 114 to 11n respectively is transmitted to the power voltage stabilizing device 180 through the lines (the double switch 121-the rectifying circuit 131-the double switch 122-the rectifying circuit 132-the double switch 123-the bypass line 143-the double switch 124- … … -the double switch 12 n-the rectifying circuit 13 n-the double switch 12n +1), and the power PW1, PW2, PW4 to PWn supplies power to the power voltage stabilizing device 180 without affecting the signal processing of the transmission wave wv3 received by the coupler 113.

Thus, the signal and the power can be stably received.

Further, as shown in fig. 10, taking an example that the receiver of the signal extraction device 150 that obtains the maximum received signal strength among the n received signal strengths is the coupler 113, in this embodiment, the method for the communication device 100 to transmit the signal from the two-dimensional communication board material is as follows:

s51, the signal extraction device 150 generates an L level signal SWD1 and transmits the L level signal SWD1 to the double switch 121, and SWD 2-SWD 1n which generate an L, L structure are transmitted to the double switch 12n + 1;

s52, the signal extraction device 150 generates L level signals SW1, SW2 and SW 4-SWn, sends the L level signals SW1, SW2 and SW 4-SWn to the

switches

151, 152 and 154-15 n respectively, generates an H level signal SW3 and sends the H level signal SW 153;

s53, the double switch 121 is connected with a bypass line 141 through an L level signal SWD1, the double switch 122 connects the switches at the two sides with the

bypass lines

141 and 142 through a [ L, L ] structured signal SWD2 respectively, and the double switch 123 connects the switches at the two sides with the

bypass lines

142 and 143 through an [ L, L ] structured signal SWD3 respectively;

s54, the double switch 12n connects the switches on the two sides with bypass lines 14n-1 and 14n respectively through signals SWDn of [ L, L ] structure. The double switch 12n +1 is connected with a bypass line 14n through an L level signal SWDn + 1;

s55, switches 151, 152, 154-15 n are turned off by L level signals SW1, SW2, SW 4-SWn, respectively, and switch 153 is turned on by H level signal SW 3.

S56, the signal processor 170 generates a signal to be transmitted, converts the generated digital signal into an analog signal, and transmits the analog signal to the signal extraction device 150, and the signal extraction device 150 transmits the received signal to the coupler 113 through the switch 153;

s57, the coupler 113 changes the scalar potential and/or the vector potential of the built-in electrode according to the transmission signal received from the signal extraction device 150, and transmits the transmission wave to the two-dimensional communication board 10.

In this case, since the double switches 121 to 12n +1 are connected to the bypass lines 141 to 14n, the couplers 111, 112, 114 to 11n do not affect the signal transmission using the coupler 113.

As shown in fig. 11, the steps of charging off mode (off mode) of the communication device 110 are as follows:

s61, the signal extraction device 150 generates L level signals SWD1, [ L, L ] structure signals SWD 2-SWDn and L level signal SWDn +1, and respectively sends the generated L level signals SWD1, [ L, L ] structure signals SWD 2-SWDn and L level signal SWDn +1 to the corresponding double switches 121-12 n + 1;

s62, the signal extraction device 150 generates L level signals SW 1-SWn, and sends the generated L level signals SW 1-SWn to the switches 151-15 n respectively;

s63, the double switch 121 is connected with the bypass line 141 through an L level signal SWD1, the double switch 122 connects the switches on the two sides with the

bypass lines

141 and 142 through a signal SWD2 of an L, L structure, and the double switch 123 connects the switches on the two sides with the

bypass lines

142 and 143 through a signal SWD3 of an L, L structure;

s64, the double switch 12n connects the switches on the two sides with bypass lines 14n-1 and 14n respectively through signals SWDn of [ L, L ] structure. Moreover, the double switch 12n +1 is connected with the bypass line 14n through an L level signal SWDn + 1;

s65 and switches 151-15 n are turned off according to the corresponding L level signals SW 1-SWn.

Thus, the rectifying circuits 131 to 13n are directly disconnected from each other, and the switches 151 to 15n are disconnected from the signal extracting device 150. As a result, the transmission waves wv1 wvn received by the couplers 111 to 11n from the two-dimensional communication board A do not supply energy to the power supply voltage stabilizer 180. That is, the mode of the communication apparatus 100 becomes off mode.

As shown in FIG. 12, the power off mode of the communication device is controlled by the main switch 140, and even if the two switches 121 to 12n +1 are connected to the rectifying circuits 131 to 13n according to the signals SWD1 to SWDn +1 in the signal extracting device 150, when the main switch 140 is turned off, the transmission waves wv1 to wvn received by the couplers 111 to 11n from the two-dimensional communication plate A do not supply energy to the power regulator 180. That is, the mode of the communication apparatus 100 becomes off mode.

Power regulator device the power regulator device has been described above, in which the signal extraction device 150 selects the coupler having the highest received signal strength from the couplers 111 to 11n as the receiving coupler, but the signal extraction device 150 may select a plurality of couplers from the couplers 111 to 11n as the receiving coupler.

Further, not only the coupler having the highest received signal strength is selected from the plurality of couplers as the receiving coupler, but also a coupler having a transmitted wave with a received signal strength greater than the threshold TH _ RSSI may be selected as the coupler for signal reception. In this case, the received signal strength of the transmission wave obtained by the coupler other than the coupler for signal reception may be the maximum. That is, the coupler for signal reception may receive a transmission wave having a reception signal strength capable of extracting a signal from the transmission wave, and store the transmission having the maximum reception signal strength as power.

As described above, the communication device 100 can store electric power while transmitting and/or receiving signals through the two-dimensional communication plate material. Then, the two-dimensional communication board material has the mesh conductor 2 having the mesh structure of the periodic square wave shape in the inside region REG2 as described above, the amount of the evanescent wave that overflows is also improved, the communication performance of the communication device 100 is also improved, and electric power can be stored in the communication device 100 with high efficiency.

Fig. 14 is a schematic diagram of a two-dimensional communication system according to an embodiment of the present invention, which includes a two-dimensional communication board 10C, a toy 210, an oscillator 220, and a power supply port 7.

The toy 210 is placed on the upper surface of the two-dimensional communication board 10C; the oscillator 220 is electrically connected with the power supply port 7 of the two-dimensional communication board 10C through a coaxial cable, and is connected with a socket through an alternating current adapter (not labeled in the figure); then, the oscillator 220 receives power through the ac adaptor and delivers it to the power feeding port 7, for example: high-frequency power with the frequency of 2.45GHz and the power of 5W-10W is transmitted to a power supply port 7; the power feeding port 7 receives high-frequency power from the oscillator 220, and transmits the received high-frequency power into the dielectric layer 1.

Fig. 15 is a schematic view of the internal structure of the toy 210 shown in fig. 14, including 2 main components:

(1) and an electric storage device 213. For example: a lithium ion battery.

(2) An interface device 110.

The electrical storage device 213 is electrically connected to the interface device 110. The electrical storage device 213 may be charged using the dc power received through the interface device 110.

The toy 210 is driven by the electric power stored in the electric storage device 213.

After the toy 210 is placed on the two-dimensional communication board 10C, the coupler 212 receives the high-frequency power supplied in the dielectric layer 1, and the received high-frequency power is rectified and supplied to the power storage device 213. Thus, the power storage device 213 is charged.

Thus, by simply placing the toy 210 on the two-dimensional communication board 10C, the power storage device 213 thereof can be simply charged. In addition, the toy 210 can be freely played at any time as long as the toy 210 is placed on the two-dimensional communication board 10C.

Toy 210 may be a robot, a toy four-wheel drive vehicle, a doll, or the like.

While the embodiments of the present invention have been disclosed above, it is not limited to the applications listed in the description and embodiments, but is fully applicable to various fields suitable for the present invention, and it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principle and spirit of the present invention, and therefore the present invention is not limited to the specific details without departing from the general concept defined in the claims and the scope of equivalents thereof.

Claims

1. Two-dimensional wireless charging and communication system, its characterized in that:

the device comprises a two-dimensional communication plate, an oscillator (220), a power supply port (7) and a communication device (100);

the two-dimensional communication board comprises a dielectric layer (1), a grid conductor (2), a thin plate conductor (3) and a short-circuit conductor (23);

the dielectric layer (1) is a rectangular flat plate, the grid conductors (2) are arranged on the upper surface of the dielectric layer (1) and are of a net structure consisting of square wave antennas;

the square wave antennas are arranged in parallel on the same plane at the same interval to form the longitude lines and the latitude lines in the vertical direction of the grid conductor (2); the centerline distance PL of the two square wave antennas is smaller than the wavelength of the communication electromagnetic wave;

the cross part of the longitude lines and the latitude lines of the grid conductors (2) is in a cross-folding structure of Chinese character strokes;

the thin plate conductor (3) is a metal thin layer and covers the lower surface of the dielectric layer (1);

the short-circuit conductor (23), the grid conductor (2) and the thin plate conductor (3) are connected into a whole;

the oscillator (220) converts signals and power to be transmitted into high-frequency power and transmits the high-frequency power to the power feeding port (7);

the power feeding port (7) is arranged on the two-dimensional communication board, receives high-frequency power from the oscillator (220), and transmits the received high-frequency power into the dielectric layer (1);

the communication device (100) comprises an interface device (110) and a coupler;

the interface device (110) comprises a double switch, a rectifying circuit, a bypass line, a switch, a main switch (140), a signal extraction device (150), a signal power separator (160), a signal processor (170) and a power supply voltage stabilizing device (180);

the number of the rectifying loops, the bypass line, the switches and the couplers is n respectively, the number of the double switches is n +1, and n is an integer greater than 2; each switch is connected with the corresponding coupler in series and then connected with a signal extraction device (150) in parallel, and the switches are controlled by the signal extraction device (150); the rectification circuit and the bypass circuit form a double-switch selection circuit, the signal extraction device (150) respectively controls switches on two sides of each double switch to be conducted with the corresponding rectification circuit and one of the corresponding bypass circuits to form a series circuit, and the switch selection circuits are connected in series and connected in parallel with the switch-coupler circuit; the head-to-tail double switches are respectively connected with the main switch and the ground, the power supply voltage stabilizing device is respectively connected with the main switch and the signal power separator (160) in series, and the signal extracting device (150) can be selectively connected with the signal power separator (160) and the signal processor (170) or selectively directly connected with the signal processor (170); the coupler is disposed on the upper surface of the dielectric layer (1), receives high-frequency power from the dielectric layer (1) through an interface device (110), and converts the high-frequency power into power for charging and a signal for communication.

2. The two-dimensional wireless charging and communication system according to claim 1, wherein:

the upper surface of the dielectric layer (1) is divided into two regions: REG1 and REG 2; REG2 is concentric and smaller than the rectangle of the shape of the upper surface of the dielectric layer (1); the region surrounded by 4 sides of REG2 and 4 sides of the upper surface of the dielectric layer (1) is REG 1;

the square wave antenna comprises an antenna main body (21) and an antenna terminal (22); the antenna main body (21) is in a square wave shape formed by periodically connecting a plurality of square wave units 211 and is positioned at REG 2; the antenna terminal (22) is a linear shape, is connected to both ends of the antenna body (21), and is positioned at REG 1;

the short-circuit conductor (23) covers the REG1 and 4 surfaces of the dielectric layer (1) parallel to the thickness direction, connects the antenna terminal (22) and the thin plate conductor (3), and connects the mesh conductor (2) and the thin plate conductor (3) as a whole.

3. The two-dimensional wireless charging and communication system of claim 1, wherein:

the power feeding port (7) comprises a first power feeding body (71), a first power feeding plate (73), a first dielectric layer (75), a second power feeding body (72), a second power feeding plate (74) and a second dielectric layer (76);

the first power feeding plate (73) and the first dielectric layer (75) are arranged on the lower surface of the dielectric layer (1); a first dielectric layer (75) is arranged between the first feeding plate (73) and the thin plate conductor (3) so that the first feeding plate (73) is electrically isolated from the thin plate conductor (3);

the second power supply body (72), the second power supply plate (74) and the second dielectric layer (76) are integrally arranged on the upper surface of the dielectric layer (1); a second dielectric layer (76) is arranged between the second feeding plate (74) and the grid conductor (2) so that the second feeding plate (74) is electrically isolated from the grid conductor (2);

the first power feeding body (71) is cylindrical and penetrates through the dielectric layer (1), the second power feeding body (72) is annular, and the rotating shafts of the first power feeding body and the second power feeding body are overlapped; the first power feeding body (71) is electrically connected with the first power feeding plate (73); the second power feeding body (72) is electrically connected to the second power feeding plate (74).

4. The two-dimensional wireless charging and communication system according to claim 1, wherein the two-dimensional wireless charging and communication system operates as follows:

s1, the signal extraction device (150) receives the transmission waves from the connected couplers in sequence;

s2, the signal extraction device (150) receives n transmission waves through n couplers and detects the intensity of the received signals, wherein n is an integer larger than 2;

s3, the signal extraction device (150) selects the receiver with the maximum received signal strength as the coupler for signal reception;

s4, the signal extraction device (150) uses the selected receiver for signal reception to receive the transmission wave;

s5, the signal extraction device (150) detects the received signal strength RSSIr of the received transmission wave;

s6, the signal extraction device (150) judges whether the received signal strength RSSIr is larger than the threshold TH _ RSSI; if the judgment result is yes, executing S7-S9, and if the judgment result is no, executing S10;

s7, transmitting the transmission wave received by the coupler for receiving the signal to a signal-power splitter (160), the signal-power splitter (160) splitting the signal received from the signal extraction device (150) into a signal SG and a power PW;

s8, the signal power separator (160) sends the separated signal SG to the signal processor (170), and the signal processor (170) processes the received signal SG;

s9, a signal power separator (160) for transmitting the separated power PW to a power source voltage stabilizer (180), which stores the power PW, and then performs S11;

s10, the signal extraction device (150) will directly send the transmission wave received by the coupler for signal reception to the signal processor (170), the signal processor (170) will process the transmission wave received from the signal extraction device (150), and then execute S11;

s11, rectifying the transmission wave received by the coupler except the coupler for receiving the signal by the corresponding rectifying circuit, and transmitting the rectified transmission wave to the power supply voltage stabilizing device (180) through the main switch (140) to realize the storage of the electric power;

s12, the signal processor (170) generates a signal for sending, converts the signal into an analog signal, and transmits the analog signal to the signal extraction device (150), and the signal extraction device (150) transmits the signal received from the signal processor (170) to the coupler for receiving the signal; the coupler for receiving the signal changes the scalar potential and/or the vector potential of the built-in electrode according to the signal for transmission received from the signal extraction device (150) to transmit the transmission wave.

5. The two-dimensional wireless charging and communication system according to claim 1, wherein the communication device (100) receives power and signals from the two-dimensional communication board by:

when the signal strength between the communication device (100) and the coupler k is maximum, k being a positive integer, 1< k < n, then the following steps are performed:

s41, the signal extraction device (150) generates a control signal to control the switch connected with the coupler K in series to be conducted, the coupler K is connected with the signal extraction device (150), and the other switches are disconnected; controlling the selection of double switches at two sides of the switch selection circuit where the coupler K is positioned to be conducted with the corresponding bypass line, and the selection of the other double switches to be conducted with the rectification circuit, wherein the rectification circuit except the switch selection circuit where the coupler K is positioned and the bypass line of the switch selection circuit where the coupler K is positioned are connected into the circuit in series through the double switches;

s42, the coupler k transmits the transmission wave wvk received from the two-dimensional communication plate A to a signal extraction device (150);

s43, the signal extraction device (150) detects the received signal strength RSSIk of the transmission wave wvk received from the coupler k, and judges whether the detected received signal strength RSSIk is larger than a threshold TH _ RSSI;

s44, if the judgment result is yes, the transmission wave wvk is transmitted to a signal power separator (160), the signal power separator (160) separates the received transmission wave wvk into a signal SG and power PW, the separated signal SG is transmitted to a signal processor (170), and the separated power PW is transmitted to a power supply voltage stabilizing device (180);

s45, the signal processor (170) receives the signal SG from the signal power separator (160) and processes the received signal SG;

s46, the power supply voltage stabilizer (180) stores the power PW received from the signal power separator (160);

s47, transmitting the transmission wave received by the other couplers except the coupler k from the two-dimensional communication plate to a power supply voltage stabilizing device (180) through a circuit formed by a switch selection circuit and a main switch (140) after being rectified by a corresponding rectifying circuit;

s48, the power supply voltage stabilizer (180) stores the obtained power through the main switch (140).

6. The two-dimensional wireless charging and communication system according to claim 1, wherein the communication device (100) transmits the signal from the two-dimensional communication sheet material by the following method:

s51, the signal extraction device (150) generates a control signal to control the switch connected with the coupler K in series to be conducted, the coupler K is connected with the signal extraction device (150), and the other switches are disconnected; controlling the double switches to be conducted with the corresponding bypass lines, wherein the rectifying circuits except the switch selection circuit where the coupler K is located are not connected with the circuit; the signal extraction device (150) is connected with the signal processor (170);

s52, the signal processor (170) generates a signal to be sent, and the signal is transmitted to the coupler k through the signal extraction device (150) and the corresponding switch;

7. The two-dimensional wireless charging and communication system according to claim 1, wherein the step of charging off mode of the communication device (100) is: the signal extraction device (150) generates control signals, the control switches are all disconnected, the double switches are controlled to select to be connected with the corresponding bypass circuit, and the bypass circuit is enabled to be connected into the circuit through the double switches.

8. The two-dimensional wireless charging and communication system according to claim 1, wherein the step of power off mode of the communication device (100) is: the main switch (140) is turned off.

9. The two-dimensional wireless charging and communication system according to claim 1, wherein the signal extraction device (150) receives n transmission waves through n couplers and detects the received signal strength when the two-dimensional wireless charging and communication system is in operation, where n is an integer greater than 2; the signal extraction device (150) selects one or more couplers of transmission waves with received signal strength greater than a threshold TH _ RSSI as couplers for signal reception, transmits the transmission waves received by the couplers for signal reception to the signal power separator (160) to be separated into a signal SG and power PW, and transmits the signals SG and power PW to the signal processor (170) and the power supply voltage stabilizing device (180) for processing.

10. The two-dimensional wireless charging and communication system according to claim 1, wherein the communication device (100) is mounted on an electronic device, and is connected to the power storage device 213 through an interface device (110), and the electronic device is placed on the two-dimensional communication board to realize charging.