Wireless power supply communication system and method, electronic equipment and storage medium

Abstract

The invention discloses a wireless power supply communication system and method, electronic equipment and a storage medium, the wireless power supply communication system comprises a power supply end and a power utilization end, and the power supply end communicates with the power utilization end; the power supply end comprises a half-bridge driving unit, a detection unit, a current feedback unit and a first coil, and the half-bridge driving unit, the detection unit and the current feedback unit are respectively connected with the first coil; the power utilization end comprises a frequency detection unit, a rectification and voltage stabilization unit, a load modulation unit and a second coil. The frequency detection unit, the rectification and voltage stabilization unit and the load modulation unit are respectively connected with the second coil. According to the wireless power supply communication system and method, the electronic equipment and the storage medium provided by the invention, the system complexity can be reduced, and the cost can be reduced. The system provided by the invention is suitable for low-power-consumption and low-data-volume application of electrodes.

Description

Wireless power communication systems, methods, electronic devices and storage media Technical Field

[0001] This invention belongs to the field of electronic information technology, and relates to a power supply and communication system, and more particularly to a wireless power supply and communication system, method, electronic device and storage medium. Background Technology

[0002] In water quality monitoring, immersion electrode measurement is an important method. Due to the need for power supply and communication interconnection, a waterproof structure is usually carefully designed. However, even with perfect waterproofing measures, problems are inevitable during production, assembly, and field use. For example, waterproof connectors may not be tightened properly, or an interface may be tightened too much, causing O-rings to deform and break, resulting in failure. In cases of electrode product failure, a significant proportion are caused by water immersion in the circuit board. Therefore, in comparison, wireless power supply combined with wireless communication can greatly facilitate production and installation. The inside of the housing can be directly sealed with glue, enhancing the reliability of the equipment.

[0003] Among existing technical solutions, wireless power supply combined with Bluetooth, 2.4G, and other modules to achieve wireless applications is a relatively mature approach. These modules are highly integrated and powerful, but require additional antenna design, occupy a large space, and are subject to EMC issues. Signal attenuation is significant in conductive liquids such as water, and pairing problems exist when multiple devices are used, making them unsuitable for underwater electrode applications. In addition, there are solutions that transmit energy and information separately through two pairs of coils, and solutions that transmit energy and information simultaneously through a single set of coils. The former allows for relatively independent energy and information transmission, thus the communication rate is not limited by the energy carrier, but the system design is more complex.

[0004] In view of this, there is an urgent need to design a new power supply and communication method in order to overcome at least some of the aforementioned defects of the existing power supply and communication methods. Summary of the Invention

[0005] This invention provides a wireless power supply communication system, method, electronic device, and storage medium, which can reduce system complexity and cost.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the following technical solution is adopted:

[0007] A wireless power supply and communication system includes a power supply end and a power consumption end, wherein the power supply end communicates with the power consumption end;

[0008] The power supply unit includes a half-bridge drive unit, a detection unit, a current feedback unit, and a first coil. The half-bridge drive unit, the detection unit, and the current feedback unit are respectively connected to the first coil.

[0009] The power supply terminal includes a frequency detection unit, a rectification and voltage regulation unit, a load modulation unit, and a second coil. The frequency detection unit, the rectification and voltage regulation unit, and the load modulation unit are respectively connected to the second coil.

[0010] The power supply terminal transmits energy to the power consumption terminal through the first coil; the power consumption terminal receives the energy transmitted by the power supply terminal through the second coil.

[0011] The half-bridge drive unit is used to control the frequency change of the first coil transmission signal according to the information to be transmitted, and to modulate the information to be transmitted onto the carrier wave of the first coil transmission signal;

[0012] The detection unit is used to extract the signal waveform transmitted by the second coil and extract the corresponding information sent by the power-consuming terminal;

[0013] The current feedback unit is used to monitor the output current of the power supply terminal and control the power supply terminal to disconnect when it is determined that the power consumption terminal is connected and there is an abnormal load.

[0014] The rectifier and voltage regulator unit is used to rectify and regulate the current obtained from the power consumption terminal;

[0015] The frequency detection unit is used to extract the signal waveform of the first coil and demodulate the signal frequency to obtain the information sent by the power supply.

[0016] The load modulation unit is used to generate information to be sent to the power supply end by slightly changing the amplitude of the waveform on the second coil through load modulation and detuning.

[0017] In one embodiment of the present invention, the half-bridge drive unit includes a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, a third six-capacitor C36, a third seven-capacitor C37, a first one-resistor R11, a first nine-resistor R19, a second zero-resistor R20, a second one-resistor R21, a third five-resistor R35, a third six-resistor R36, a third seven-resistor R37, a fourth zero-resistor R40, and a fourth one-resistor R41.

[0018] The emitter of the first transistor Q1 is connected to the first terminal of the first resistor R11 and the power supply voltage, respectively; the base of the first transistor Q1 is connected to the second terminal of the first resistor R11 and the second terminal of the third resistor R35, respectively; the collector of the first transistor Q1 is connected to the first terminal of the third capacitor C36, the first terminal of the third capacitor C37, and the emitter of the third transistor Q3, respectively; the second terminals of the third capacitor C36 and the second terminals of the third capacitor C37 are respectively connected to the positive control voltage of the first coil;

[0019] The first end of the third five resistor R35 is connected to the emitter of the second transistor Q2, and the base of the second transistor Q2 is connected to the second end of the third six resistor R36 and the first end of the third seven resistor R37, respectively; the first end of the third six resistor R36 is connected to the high-side control signal; the collector of the second transistor Q2 and the second end of the third seven resistor R37 are grounded, respectively.

[0020] The base of the third transistor Q3 is connected to the second terminal of the second zero-resistance R20, the first terminal of the second first-resistance R21, and the emitter of the fourth transistor Q4; the first terminal of the second zero-resistance R20 is connected to the power supply voltage; the base of the fourth transistor Q4 is connected to the second terminal of the fourth zero-resistance R40 and the first terminal of the fourth first-resistance R41, and the first terminal of the fourth zero-resistance R40 is connected to the low-side control signal; the collector of the fourth transistor Q4, the second terminal of the fourth first-resistance R41, the second terminal of the second first-resistance R21, the collector of the third transistor Q3, and the second terminal of the first nine-resistance R19 are all grounded; the first terminal of the first nine-resistance R19 is connected to the negative control voltage of the first coil.

[0021] In one embodiment of the present invention, the load modulation unit includes a fifth transistor Q5, a second capacitor C2, a second nine-resistor R29, and a third zero-resistor R30.

[0022] The second terminal of the second capacitor C2 is connected to the emitter of the fifth transistor Q5. The base of the fifth transistor Q5 is connected to the second terminal of the second nine-resistor R29 and the first terminal of the third zero-resistor R30. The collector of the fifth transistor Q5 and the second terminal of the third zero-resistor R30 are grounded. The first terminal of the second nine-resistor R29 is connected to the control signal.

[0023] The rectifier and voltage regulator unit includes a first diode D1, a first capacitor C1, a third capacitor C3, a sixth capacitor C6, a second third capacitor C23, a second fourth capacitor C24, a second fifth capacitor C25, and a seventh resistor R7.

[0024] The first terminal of the first capacitor C1 is connected to the first terminal of the third capacitor C3 and the positive terminal of the second coil to control the voltage, and the second terminal of the first capacitor C1 is connected to the second terminal of the third capacitor C3 and the positive terminal of the first diode D1.

[0025] The cathode of the first diode D1 is connected to the first terminal of the sixth capacitor C6, the first terminal of the second and third capacitors C23, the first terminal of the second and fourth capacitors C24, and the first terminal of the second and fifth capacitors C25, respectively.

[0026] The first end of the seventh resistor R7 is connected to the negative control voltage of the second coil, and the second end of the seventh resistor R7, the second end of the sixth capacitor C6, the second end of the second and third capacitors C23, the second end of the second and fourth capacitors C24, and the second end of the second and fifth capacitors C25 are respectively grounded.

[0027] In one embodiment of the present invention, the frequency detection unit includes a first comparator U1, a sixth comparator U6, a seventh comparator U7, a first seven-capacitor C17, a second zero-capacitor C20, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first four-resistor R14, a first five-resistor R15, a first seven-resistor R17, and a first eight-resistor R18.

[0028] The second terminal of the first seven-resistor R17 is connected to the second terminal of the second resistor R2 and the first terminal of the first eight-resistor R18; the first terminal of the second resistor R2 is grounded.

[0029] The second end of the first eight resistors R18 is connected to the non-inverting input of the seventh comparator U7, and the inverting input of the seventh comparator U7 is connected to the output of the seventh comparator U7 and the first four resistors R14 respectively; the second end of the first four resistors R14 is connected to the first end of the first five resistors R15 and the first end of the second zero capacitor C20 respectively.

[0030] The non-inverting input terminal of the sixth comparator U6 is connected to the second terminal of the first five resistor R15 and the second terminal of the first seven capacitor C17, respectively, and the first terminal of the first seven capacitor C17 is grounded.

[0031] The inverting input terminal of the sixth comparator U6 is connected to the second terminal of the second zero capacitor C20, the output terminal of the sixth comparator U6, and the first terminal of the third resistor R3, respectively.

[0032] The non-inverting input terminal of the first comparator U1 is connected to the second terminal of the third resistor R3 and the first terminal of the first resistor R1, respectively; the inverting input terminal of the first comparator U1 is connected to the second terminal of the fifth resistor R5 and the first terminal of the sixth resistor R6, respectively; the first terminal of the fifth resistor R5 is connected to the power supply voltage, and the second terminal of the sixth resistor R6 is grounded; the output terminal of the first comparator U1 is connected to the first terminal of the fourth resistor R4.

[0033] In one embodiment of the present invention, the detection unit includes a ninth comparator U9, a first zero comparator U10, a first first comparator U11A, a second diode D2, a ninth capacitor C9, a first zero capacitor C10, a second eighth capacitor C28, a second ninth capacitor C29, a fourth second resistor R42, a fourth third resistor R43, a fourth fourth resistor R44, a fourth fifth resistor R45, a fourth sixth resistor R46, a fourth seventh resistor R47, a fourth eighth resistor R48, a fourth ninth resistor R49, and a fifth zero resistor R50.

[0034] The first terminal of the first zero capacitor C10 is connected to the positive control voltage of the first coil, and the second terminal of the first zero capacitor C10 is connected to the first terminal of the fourth resistor R42. The second terminal of the fourth resistor R42 is connected to the first terminal of the fourth resistor R48 and the positive terminal of the second diode D2. The negative terminal of the second diode D2 is connected to the first terminal of the second capacitor C28, the first terminal of the fourth resistor R49, and the first terminal of the fourth resistor R43. The second terminals of the fourth resistor R48, the second terminal of the second capacitor C28, and the second terminal of the fourth resistor R49 are grounded.

[0035] The non-inverting input of the first zero comparator U10 is connected to the second terminal of the fourth resistor R43, and the inverting input of the first zero comparator U10 is connected to the output of the first zero comparator U10 and the first terminal of the fourth resistor R44.

[0036] The second terminal of the fourth resistor R44 is connected to the first terminal of the ninth capacitor C9 and the first terminal of the fourth resistor R45, respectively; the non-inverting input terminal of the ninth comparator U9 is connected to the second terminal of the fifth resistor R5 and the first terminal of the second capacitor C29, and the second terminal of the second capacitor C29 is grounded; the inverting input terminal of the ninth comparator U9 is connected to the second terminal of the ninth capacitor C9, the output terminal of the ninth comparator U9, and the non-inverting input terminal of the first comparator U11A, respectively.

[0037] The inverting input terminal of the first comparator U11A is connected to the second terminal of the fourth seven resistor R47 and the first terminal of the fifth zero resistor R50, respectively; the first terminal of the fourth seven resistor R47 is connected to the power supply voltage, and the second terminal of the fifth zero resistor R50 is grounded; the output terminal of the first comparator U11A is connected to the first terminal of the fourth six resistor R46.

[0038] According to another aspect of the present invention, the following technical solution is adopted: a wireless power supply communication method for the above-mentioned wireless power supply communication system, the wireless power supply communication method comprising:

[0039] The power supply end transmits energy to the power consumption end through the first coil, and the power consumption end receives the energy transmitted by the power supply end through the second coil; the rectification and voltage regulation unit rectifies and regulates the current obtained by the power consumption end;

[0040] The half-bridge drive unit controls the frequency change of the first coil transmission signal according to the information to be transmitted, and modulates the information to be transmitted onto the carrier wave of the first coil transmission signal;

[0041] The detection unit extracts the signal waveform transmitted by the second coil and extracts the corresponding information sent by the power-consuming terminal;

[0042] The frequency detection unit extracts the signal waveform of the first coil and demodulates the signal frequency to obtain the information sent by the power supply.

[0043] The modulation unit uses load modulation to slightly change the amplitude of the waveform on the second coil by detuning, thereby generating information to be sent to the power supply.

[0044] As one embodiment of the present invention, the wireless power supply communication method further includes: a current feedback unit monitoring the output current of the power supply terminal, and controlling the power supply terminal to disconnect when it is determined that the power user terminal is connected and there is an abnormal load.

[0045] According to another aspect of the present invention, the following technical solution is adopted: an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above method.

[0046] According to another aspect of the present invention, the following technical solution is adopted: a storage medium storing computer program instructions thereon, which, when executed by a processor, implement the steps of the above-described method.

[0047] The beneficial effects of this invention are as follows: the wireless power supply communication system, method, electronic device, and storage medium proposed in this invention can reduce system complexity and cost. The system of this invention is suitable for electrode-based applications with low power consumption and low data volume. Attached Figure Description

[0048] Figure 1 is a schematic diagram of the composition of a wireless power supply communication system according to an embodiment of the present invention.

[0049] Figure 2 is a circuit diagram of a half-bridge drive unit in one embodiment of the present invention.

[0050] Figure 3 is a circuit diagram of the rectifier and voltage regulator unit and the load modulation unit in one embodiment of the present invention.

[0051] Figure 4 is a circuit diagram of the frequency detection unit in one embodiment of the present invention.

[0052] Figure 5 is a circuit diagram of the detection unit in one embodiment of the present invention.

[0053] Figure 6 is a circuit diagram of the current feedback unit in one embodiment of the present invention.

[0054] Figure 7 is a flowchart of a wireless power supply communication method according to an embodiment of the present invention.

[0055] Figure 8 is a schematic diagram of the composition of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0056] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0057] To further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, and not for limiting the scope of the claims of the present invention.

[0058] The description in this section pertains to only a few typical embodiments, and the present invention is not limited to the scope of the embodiments described. Substitution of identical or similar prior art methods with some technical features in the embodiments is also within the scope of the description and protection of this invention.

[0059] The steps described in the various embodiments in the specification are for illustrative purposes only, and the implementation of this application is not limited by the order of the steps.

[0060] The term "connection" in the specification includes both direct and indirect connections, such as connections made through active devices, passive devices, or electrical conduction media; it may also include connections made by other active or passive devices that are known to those skilled in the art and can achieve the same or similar functional purpose, such as connections made through circuits or components such as switches or follower circuits.

[0061] This invention discloses a wireless power supply communication system. Figure 1 is a schematic diagram of the composition of the wireless power supply communication system in one embodiment of this invention. Referring to Figure 1, the wireless power supply communication system includes a power supply terminal 1 and a power consumption terminal 2, and the power supply terminal 1 communicates with the power consumption terminal 2.

[0062] The power supply terminal 1 includes a half-bridge drive unit 11, a detection unit 12, a current feedback unit 13, and a first coil 14. The half-bridge drive unit 11, the detection unit 12, and the current feedback unit 13 are respectively connected to the first coil 14. The power consumption terminal 2 includes a frequency detection unit 21, a rectification and voltage regulation unit 22, a load modulation unit 23, and a second coil 24. The frequency detection unit 21, the rectification and voltage regulation unit 22, and the load modulation unit 23 are respectively connected to the second coil 24. The power supply terminal 1 transmits energy to the power consumption terminal 2 through the first coil 14; the power consumption terminal 2 receives the energy transmitted by the power supply terminal 1 through the second coil 24.

[0063] The half-bridge drive unit 11 is used to control the frequency change of the transmission signal of the first coil 14 according to the information to be transmitted, and modulate the information to be transmitted onto the carrier wave of the signal transmitted by the first coil 14; the detection unit 12 is used to extract the signal waveform transmitted by the second coil 24 and extract the corresponding information sent by the power supply terminal 2; the current feedback unit 13 is used to monitor the output current of the power supply terminal 1 and control the power supply terminal 1 to disconnect when it is determined that the power supply terminal 2 is connected and there is an abnormal load.

[0064] The rectification and voltage regulation unit 22 is used to rectify and regulate the current obtained by the power supply terminal 2; the frequency detection unit 21 is used to extract the signal waveform of the first coil 14 and demodulate the signal frequency to obtain the information sent by the power supply terminal 1; the load modulation unit 23 is used to use load modulation to slightly change the amplitude of the waveform on the second coil 24 by detuning, thereby forming the information sent to the power supply terminal 1.

[0065] Figure 2 is a circuit diagram of a half-bridge drive unit in one embodiment of the present invention. As shown in Figure 2, the control logic of the high end of the coil and the control logic of the low end of the coil are the same. The coil and the series capacitor determine the resonant frequency of the circuit. The half-bridge drive is most efficient at this resonant frequency. By selecting two frequencies on both sides of this frequency as 0 and 1 for encoding, information can be transmitted to the power user with minimal impact on energy transmission efficiency.

[0066] Please refer to Figure 2. In one embodiment of the present invention, the half-bridge drive unit includes a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, a third six capacitor C36, a third seven capacitor C37, a first one resistor R11, a first nine resistor R19, a second zero resistor R20, a second one resistor R21, a third five resistor R35, a third six resistor R36, a third seven resistor R37, a fourth zero resistor R40, and a fourth one resistor R41.

[0067] The emitter of the first transistor Q1 is connected to the first terminal of the first resistor R11 and the power supply voltage, respectively; the base of the first transistor Q1 is connected to the second terminal of the first resistor R11 and the second terminal of the third resistor R35, respectively; the collector of the first transistor Q1 is connected to the first terminal of the third capacitor C36, the first terminal of the third capacitor C37, and the emitter of the third transistor Q3, respectively; the second terminals of the third capacitor C36 and the second terminals of the third capacitor C37 are connected to the positive control voltage of the first coil, respectively.

[0068] The first end of the third five resistor R35 is connected to the emitter of the second transistor Q2, and the base of the second transistor Q2 is connected to the second end of the third six resistor R36 and the first end of the third seven resistor R37, respectively; the first end of the third six resistor R36 is connected to the high-side control signal; the collector of the second transistor Q2 and the second end of the third seven resistor R37 are grounded, respectively.

[0069] The base of the third transistor Q3 is connected to the second terminal of the second zero-resistance R20, the first terminal of the second first-resistance R21, and the emitter of the fourth transistor Q4; the first terminal of the second zero-resistance R20 is connected to the power supply voltage; the base of the fourth transistor Q4 is connected to the second terminal of the fourth zero-resistance R40 and the first terminal of the fourth first-resistance R41, and the first terminal of the fourth zero-resistance R40 is connected to the low-side control signal; the collector of the fourth transistor Q4, the second terminal of the fourth first-resistance R41, the second terminal of the second first-resistance R21, the collector of the third transistor Q3, and the second terminal of the first nine-resistance R19 are all grounded; the first terminal of the first nine-resistance R19 is connected to the negative control voltage of the first coil.

[0070] Figure 3 is a circuit diagram of the rectifier and voltage regulator unit and the load modulation unit in one embodiment of the present invention; the power receiving circuit at the power supply end is shown in Figure 3. After simple rectification, it can be regulated by LDO to supply the power to the subsequent circuit; the connection and disconnection of the load modulation unit will cause changes in the waveform on the coil. Communication can be realized by coupling the coil to the power supply end.

[0071] Referring to Figure 3, in one embodiment of the present invention, the load modulation unit includes a fifth transistor Q5, a second capacitor C2, a second nine-resistor R29, and a third zero-resistor R30. The second terminal of the second capacitor C2 is connected to the emitter of the fifth transistor Q5, and the base of the fifth transistor Q5 is connected to the second terminal of the second nine-resistor R29 and the first terminal of the third zero-resistor R30, respectively. The collector of the fifth transistor Q5 and the second terminal of the third zero-resistor R30 are grounded, and the first terminal of the second nine-resistor R29 is connected to a control signal.

[0072] Please refer to Figure 3. The rectifier and voltage regulator unit includes a first diode D1, a first capacitor C1, a third capacitor C3, a sixth capacitor C6, a second third capacitor C23, a second fourth capacitor C24, a second fifth capacitor C25, and a seventh resistor R7. The first terminal of the first capacitor C1 is connected to the first terminal of the third capacitor C3 and the positive terminal of the second coil, controlling the voltage. The second terminal of the first capacitor C1 is connected to the second terminal of the third capacitor C3 and the positive terminal of the first diode D1. The negative terminal of the first diode D1 is connected to the first terminals of the sixth capacitor C6, the second third capacitor C23, the second fourth capacitor C24, and the second fifth capacitor C25. The first terminal of the seventh resistor R7 is connected to the negative terminal of the second coil, controlling the voltage. The second terminals of the seventh resistor R7, the sixth capacitor C6, the second third capacitor C23, the second fourth capacitor C24, and the second fifth capacitor C25 are all grounded.

[0073] Figure 4 is a circuit diagram of the frequency detection unit in one embodiment of the present invention; the power supply communication receiving circuit is shown in Figure 4. After proportional adjustment and filtering, a clean frequency modulation signal can be obtained through the comparator. After frequency detection and demodulation by the microcontroller, the information transmitted by the power supply can be obtained.

[0074] Please refer to Figure 4. In one embodiment of the present invention, the frequency detection unit includes a first comparator U1, a sixth comparator U6, a seventh comparator U7, a first seven-capacitor C17, a second zero-capacitor C20, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first four-resistor R14, a first five-resistor R15, a first seven-resistor R17, and a first eight-resistor R18.

[0075] The second terminal of the first seven-resistor R17 is connected to the second terminal of the second resistor R2 and the first terminal of the first eight-resistor R18; the first terminal of the second resistor R2 is grounded. The second terminal of the first eight-resistor R18 is connected to the non-inverting input terminal of the seventh comparator U7, and the inverting input terminal of the seventh comparator U7 is connected to the output terminal of the seventh comparator U7 and the first four-resistor R14; the second terminal of the first four-resistor R14 is connected to the first terminal of the first five-resistor R15 and the first terminal of the second zero-capacitor C20.

[0076] The non-inverting input of the sixth comparator U6 is connected to the second terminal of the first five-resistor R15 and the second terminal of the first seven-capacitor C17, with the first terminal of the first seven-capacitor C17 grounded. The inverting input of the sixth comparator U6 is connected to the second terminal of the second zero-capacitor C20, the output of the sixth comparator U6, and the first terminal of the third resistor R3.

[0077] The non-inverting input terminal of the first comparator U1 is connected to the second terminal of the third resistor R3 and the first terminal of the first resistor R1, respectively; the inverting input terminal of the first comparator U1 is connected to the second terminal of the fifth resistor R5 and the first terminal of the sixth resistor R6, respectively; the first terminal of the fifth resistor R5 is connected to the power supply voltage, and the second terminal of the sixth resistor R6 is grounded; the output terminal of the first comparator U1 is connected to the first terminal of the fourth resistor R4.

[0078] Figure 5 is a circuit diagram of the detector unit in one embodiment of the present invention; the communication receiving circuit of the power supply end is shown in Figure 5. After proportional adjustment, rectification and filtering, the detector unit passes through a comparator to obtain a clean amplitude modulation signal, and the microcontroller can directly read the information sent by the power user end.

[0079] Please refer to Figure 5. In one embodiment of the present invention, the detection unit includes a ninth comparator U9, a first zero comparator U10, a first first comparator U11A, a second diode D2, a ninth capacitor C9, a first zero capacitor C10, a second eighth capacitor C28, a second ninth capacitor C29, a fourth second resistor R42, a fourth third resistor R43, a fourth fourth resistor R44, a fourth fifth resistor R45, a fourth sixth resistor R46, a fourth seventh resistor R47, a fourth eighth resistor R48, a fourth ninth resistor R49, and a fifth zero resistor R50.

[0080] The first terminal of the first zero capacitor C10 is connected to the positive control voltage of the first coil, and the second terminal of the first zero capacitor C10 is connected to the first terminal of the fourth resistor R42. The second terminal of the fourth resistor R42 is connected to the first terminal of the fourth resistor R48 and the positive terminal of the second diode D2. The negative terminal of the second diode D2 is connected to the first terminal of the second capacitor C28, the first terminal of the fourth resistor R49, and the first terminal of the fourth resistor R43. The second terminals of the fourth resistor R48, the second terminal of the second capacitor C28, and the second terminal of the fourth resistor R49 are grounded.

[0081] The non-inverting input of the first zero comparator U10 is connected to the second terminal of the fourth resistor R43, and the inverting input of the first zero comparator U10 is connected to the output of the first zero comparator U10 and the first terminal of the fourth resistor R44.

[0082] The second terminal of the fourth resistor R44 is connected to the first terminal of the ninth capacitor C9 and the first terminal of the fourth resistor R45, respectively; the non-inverting input terminal of the ninth comparator U9 is connected to the second terminal of the fifth resistor R5 and the first terminal of the second capacitor C29, and the second terminal of the second capacitor C29 is grounded; the inverting input terminal of the ninth comparator U9 is connected to the second terminal of the ninth capacitor C9, the output terminal of the ninth comparator U9, and the non-inverting input terminal of the first comparator U11A, respectively.

[0083] The inverting input terminal of the first comparator U11A is connected to the second terminal of the fourth seven resistor R47 and the first terminal of the fifth zero resistor R50, respectively; the first terminal of the fourth seven resistor R47 is connected to the power supply voltage, and the second terminal of the fifth zero resistor R50 is grounded; the output terminal of the first comparator U11A is connected to the first terminal of the fourth six resistor R46.

[0084] Figure 6 is a circuit diagram of the current feedback unit in one embodiment of the present invention; referring to Figure 6, in one embodiment of the present invention, the current feedback unit includes a seventh resistor R7. A sampling resistor is placed on the power supply side to monitor the current, so as to realize functions such as load detection and emergency power-off.

[0085] This invention further discloses a wireless power supply communication method for the above-mentioned wireless power supply communication system. Figure 7 is a flowchart of the wireless power supply communication method in one embodiment of this invention. Referring to Figure 7, the wireless power supply communication method includes:

[0086]

Step S1

[0087]

Step S2

[0088]

Step S3

[0089]

Step S4

[0090]

Step S5

[0091] In one embodiment of the present invention, the wireless power supply communication method further includes: a current feedback unit monitoring the output current of the power supply terminal, and controlling the power supply terminal to disconnect when it is determined that the power user terminal is connected and there is an abnormal load.

[0092] This invention also discloses an electronic device. Figure 8 is a schematic diagram of the composition of the electronic device in one embodiment of this invention. Referring to Figure 8, at the hardware level, the electronic device includes a memory, a processor, and at least one communication interface. The processor can be a microprocessor, and the memory can include RAM, such as random access memory (RAM) or non-volatile memory. Of course, the electronic device can also be equipped with other hardware as needed.

[0093] The processor, communication interface, and memory can be interconnected via an internal bus. The memory stores programs (including operating system programs and application programs); the programs may include program code, which may include computer operation instructions. The memory may include main memory and non-volatile memory, and provides instructions and data to the processor.

[0094] In one embodiment, the processor can read the corresponding program from non-volatile memory into memory and then run it; the processor can execute the program stored in memory and specifically perform the following operations (as shown in Figure 7):

[0095]

Step S1

[0096]

Step S2

[0097]

Step S3

[0098]

Step S4

[0099]

Step S5

[0100] The present invention further discloses a storage medium storing computer program instructions thereon, which, when executed by a processor, implement the following steps of the method of the present invention (as shown in Figure 7):

[0101]

Step S1

[0102]

Step S2

[0103]

Step S3

[0104]

Step S4

[0105]

Step S5

[0106] In summary, the wireless power supply communication system, method, electronic device, and storage medium proposed in this invention can reduce system complexity and cost. The system of this invention is suitable for electrode-based applications with low power consumption and low data volume.

[0107] It should be noted that this application can be implemented in software and / or a combination of software and hardware; for example, it can be implemented using an application-specific integrated circuit (ASIC), a general-purpose computer, or any other similar hardware device. In some embodiments, the software program of this application can be executed by a processor to implement the steps or functions described above. Similarly, the software program of this application (including related data structures) can be stored in a computer-readable recording medium; for example, RAM memory, magnetic or optical drives, floppy disks, and similar devices. In addition, some steps or functions of this application can be implemented in hardware; for example, as circuitry that cooperates with a processor to perform the various steps or functions.

[0108] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The description and application of the present invention herein are illustrative and not intended to limit the scope of the invention to the embodiments described above. Effects or advantages involved in the embodiments may not be apparent due to various factors, and the description of effects or advantages is not intended to limit the embodiments. Variations and modifications of the embodiments disclosed herein are possible, and various substitutions and equivalents of the components in the embodiments are well known to those skilled in the art. It should be apparent to those skilled in the art that the invention can be implemented in other forms, structures, arrangements, proportions, and with other components, materials, and parts without departing from the spirit or essential characteristics of the invention. Other variations and modifications can be made to the embodiments disclosed herein without departing from the scope and spirit of the invention.

Claims

1. A wireless power supply and communication system, characterized in that, The wireless power supply and communication system includes a power supply end and a power consumption end, wherein the power supply end communicates with the power consumption end; the power supply end includes a half-bridge driving unit, a detection unit, a current feedback unit, and a first coil, wherein the half-bridge driving unit, the detection unit, and the current feedback unit are respectively connected to the first coil; the power consumption end includes a frequency detection unit, a rectification and voltage regulation unit, a load modulation unit, and a second coil, wherein the frequency detection unit, the rectification and voltage regulation unit, and the load modulation unit are respectively connected to the second coil; the power supply end transmits energy to the power consumption end through the first coil; the power consumption end receives the energy transmitted by the power supply end through the second coil; the half-bridge driving unit uses... The system controls the frequency of the first coil's transmitted signal according to the information to be transmitted, modulating the information onto the carrier wave of the first coil's transmitted signal. The detection unit extracts the signal waveform transmitted by the second coil and extracts the corresponding information sent by the power supply terminal. The rectification and voltage regulation unit rectifies and regulates the current obtained by the power supply terminal. The frequency detection unit extracts the signal waveform of the first coil and demodulates it according to the signal frequency to obtain the information sent by the power supply terminal. The load modulation unit uses load modulation to slightly change the amplitude of the waveform on the second coil through detuning, forming the information sent to the power supply terminal.

2. The wireless power supply and communication system according to claim 1, characterized in that: The power supply terminal is further equipped with a current feedback unit, which is connected to the first coil. The current feedback unit is used to monitor the output current of the power supply terminal and control the power supply terminal to disconnect when it is determined that the power consumption terminal is connected and there is an abnormal load.

3. The wireless power supply and communication system according to claim 1, characterized in that: The half-bridge drive unit includes a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, a third six-capacitor C36, a third seven-capacitor C37, a first one-resistor R11, a first nine-resistor R19, a second zero-resistor R20, a second one-resistor R21, a third five-resistor R35, a third six-resistor R36, a third seven-resistor R37, a fourth zero-resistor R40, and a fourth one-resistor R41. The emitter of the first transistor Q1 is connected to the first terminal of the first one-resistor R11 and the power supply voltage. The base of the first transistor Q1 is connected to the second terminal of the first one-resistor R11 and the second terminal of the third five-resistor R35. The collector of the first transistor Q1 is connected to the first terminal of the third six-capacitor C36, the first terminal of the third seven-capacitor C37, and the emitter of the third transistor Q3. The second terminals of the third six-capacitor C36 and the third seven-capacitor C37 are connected to the positive control voltage of the first coil. The first terminal of the third five-resistor R35 is connected to... The emitter and base of the second transistor Q2 are connected to the second terminal of the third six-resistor R36 and the first terminal of the third seven-resistor R37, respectively; the first terminal of the third six-resistor R36 is connected to the high-side control signal; the collector of the second transistor Q2 and the second terminal of the third seven-resistor R37 are grounded; the base of the third transistor Q3 is connected to the second terminal of the second zero-resistor R20, the first terminal of the second one-resistor R21, and the emitter of the fourth transistor Q4, respectively; the first terminal of the second zero-resistor R20 is connected to the power supply voltage; the base of the fourth transistor Q4 is connected to the second terminal of the fourth zero-resistor R40 and the first terminal of the fourth one-resistor R41, respectively; the first terminal of the fourth zero-resistor R40 is connected to the low-side control signal; the collector of the fourth transistor Q4, the second terminal of the fourth one-resistor R41, the second terminal of the second one-resistor R21, the collector of the third transistor Q3, and the second terminal of the first nine-resistor R19 are grounded; the first terminal of the first nine-resistor R19 is connected to the negative control voltage of the first coil.

4. The wireless power supply and communication system according to claim 1, characterized in that: The load modulation unit includes a fifth transistor Q5, a second capacitor C2, a second nine-resistor R29, and a third zero-resistor R30; the second terminal of the second capacitor C2 is connected to the emitter of the fifth transistor Q5, and the base of the fifth transistor Q5 is connected to the second terminal of the second nine-resistor R29 and the first terminal of the third zero-resistor R30 respectively; the collector of the fifth transistor Q5 and the second terminal of the third zero-resistor R30 are grounded respectively, and the first terminal of the second nine-resistor R29 is connected to a control signal; the rectification and voltage regulation unit includes a first diode D1, a first capacitor C1, a third capacitor C3, a sixth capacitor C6, a second three-capacitor C23, a second four-capacitor C24, a second five-capacitor C25, and a seventh resistor R7; The first terminal of the first capacitor C1 is connected to the first terminal of the third capacitor C3 and the positive terminal of the second coil to control the voltage. The second terminal of the first capacitor C1 is connected to the second terminal of the third capacitor C3 and the positive terminal of the first diode D1. The negative terminal of the first diode D1 is connected to the first terminal of the sixth capacitor C6, the first terminal of the second third capacitor C23, the first terminal of the second fourth capacitor C24, and the first terminal of the second fifth capacitor C25. The first terminal of the seventh resistor R7 is connected to the negative terminal of the second coil to control the voltage. The second terminals of the seventh resistor R7, the sixth capacitor C6, the second third capacitor C23, the second fourth capacitor C24, and the second fifth capacitor C25 are grounded.

5. The wireless power supply communication system according to claim 1, characterized in that: The frequency detection unit includes a first comparator U1, a sixth comparator U6, a seventh comparator U7, a first seven-capacitor C17, a second zero-capacitor C20, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first four-resistor R14, a first five-resistor R15, a first seven-resistor R17, and a first eight-resistor R18. The second terminal of the first seven-resistor R17 is connected to the second terminal of the second resistor R2 and the first terminal of the first eight-resistor R18. The first terminal of the second resistor R2 is grounded. The second terminal of the first eight-resistor R18 is connected to the non-inverting input terminal of the seventh comparator U7, and the inverting input terminal of the seventh comparator U7 is connected to the output terminal of the seventh comparator U7 and the first four-resistor R14. The second terminal of the first four-resistor R14 is connected to the first five-resistor R17 and the first eight-resistor R18. The first terminal of resistor R15 and the first terminal of the second zero capacitor C20 are connected; the non-inverting input terminal of the sixth comparator U6 is connected to the second terminal of the first five resistor R15 and the second terminal of the first seven capacitor C17, with the first terminal of the first seven capacitor C17 grounded; the inverting input terminal of the sixth comparator U6 is connected to the second terminal of the second zero capacitor C20, the output terminal of the sixth comparator U6, and the first terminal of the third resistor R3; the non-inverting input terminal of the first comparator U1 is connected to the second terminal of the third resistor R3 and the first terminal of the first resistor R1; the inverting input terminal of the first comparator U1 is connected to the second terminal of the fifth resistor R5 and the first terminal of the sixth resistor R6, with the first terminal of the fifth resistor R5 connected to the power supply voltage and the second terminal of the sixth resistor R6 grounded; the output terminal of the first comparator U1 is connected to the first terminal of the fourth resistor R4.

6. The wireless power supply and communication system according to claim 1, characterized in that: The detection unit includes a ninth comparator U9, a first zero comparator U10, a first first comparator U11A, a second diode D2, a ninth capacitor C9, a first zero capacitor C10, a second eighth capacitor C28, a second ninth capacitor C29, a fourth second resistor R42, a fourth third resistor R43, a fourth fourth resistor R44, a fourth fifth resistor R45, a fourth sixth resistor R46, a fourth seventh resistor R47, a fourth eighth resistor R48, a fourth ninth resistor R49, and a fifth zero resistor R50; the first terminal of the first zero capacitor C10 is connected to... The positive terminal of the first coil controls the voltage. The second terminal of the first zero capacitor C10 is connected to the first terminal of the fourth resistor R42. The second terminal of the fourth resistor R42 is connected to the first terminal of the fourth resistor R48 and the positive terminal of the second diode D2. The negative terminal of the second diode D2 is connected to the first terminal of the second capacitor C28, the first terminal of the fourth resistor R49, and the first terminal of the fourth resistor R43. The second terminals of the fourth resistor R48, the second terminal of the second capacitor C28, and the second terminal of the fourth resistor R49 are respectively connected to the first terminal of the second capacitor C28 and the first terminal of the fourth resistor R43. Grounded; the non-inverting input of the first zero comparator U10 is connected to the second terminal of the fourth three resistor R43, and the inverting input of the first zero comparator U10 is connected to the output of the first zero comparator U10 and the first terminal of the fourth four resistor R44; the second terminal of the fourth four resistor R44 is connected to the first terminal of the ninth capacitor C9 and the first terminal of the fourth five resistor R45; the non-inverting input of the ninth comparator U9 is connected to the second terminal of the fifth resistor R5 and the first terminal of the second nine capacitor C29, and the second terminal of the second nine capacitor C29 is grounded; the inverting input of the ninth comparator U9 is connected to the second terminal of the ninth capacitor C9, the output of the ninth comparator U9, and the non-inverting input of the first one comparator U11A; the inverting input of the first one comparator U11A is connected to the second terminal of the fourth seven resistor R47 and the first terminal of the fifth zero resistor R50; the first terminal of the fourth seven resistor R47 is connected to the power supply voltage, and the second terminal of the fifth zero resistor R50 is grounded; the output of the first one comparator U11A is connected to the first terminal of the fourth six resistor R46.

7. A wireless power supply communication method for a wireless power supply communication system according to any one of claims 1 to 6, characterized in that, The wireless power supply communication method includes: a power supply end transmitting energy to a power user end through a first coil, and the power user end receiving the energy transmitted by the power supply end through a second coil; a rectification and voltage regulation unit rectifying and regulating the current obtained by the power user end; a half-bridge drive unit controlling the frequency change of the signal transmitted by the first coil according to the information to be transmitted, and modulating the information to be transmitted onto the carrier wave of the signal transmitted by the first coil; a detection unit extracting the signal waveform transmitted by the second coil and extracting the corresponding information sent by the power user end; a frequency detection unit extracting the signal waveform of the first coil and demodulating it according to the signal frequency to obtain the information sent by the power supply end; and a modulation unit using load modulation to slightly change the amplitude of the waveform on the second coil through detuning to form the information sent to the power supply end.

8. The wireless power supply communication method according to claim 7, characterized in that: The wireless power supply communication method further includes: a current feedback unit monitoring the output current of the power supply terminal, and controlling the power supply terminal to disconnect when it is determined that the power user terminal is connected and there is an abnormal load.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method of claim 7 or 8.

10. A storage medium storing computer program instructions thereon, characterized in that, When the computer program instructions are executed by the processor, they implement the steps of the method of claim 7 or 8.

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