Wireless energy transmission system and detection method of wireless energy transmission system

Abstract

The embodiment of the invention provides a wireless energy transmission system and a detection method of the wireless energy transmission system. The system comprises a transmitting end, a relay coil end and a receiving end, the transmitting end is used for acquiring energy from a high-voltage line and transmitting the energy to the repeating coil end, the repeating coil end is used for transmitting the energy, and the receiving end is used for receiving the energy and providing the energy to a load; the relay coil end comprises a plurality of relay coils, and each relay coil corresponds to a relay control module; the transmitting end comprises a transmitting control module; the relay control module is used for acquiring energy from the relay coil and converting the energy into power supply voltage of the relay control module, and is also used for acquiring first sensing data of the relay coil and sending the first sensing data to the emission control module; and the emission control module is used for reporting the first sensing data to a server. The method is used for achieving the effects of uninterruptedly detecting the relay coil and improving the operation and maintenance efficiency of the wireless energy transmission system.

Description

Technical Field

[0001] This application relates to the field of wireless power transfer system technology, and in particular to a wireless power transfer system and a method for detecting a wireless power transfer system. Background Technology

[0002] Wireless power transmission systems are widely used in high-voltage transmission lines of power systems; with the development of digitalization and intelligence in the power grid industry, the demand for real-time monitoring of transmission lines in power systems is increasing.

[0003] In related technologies, the coils in a wireless power transmission system are non-contact. Due to the power supply limitations of the detection equipment, the detection equipment can only detect the receiving coil or the transmitting coil in the wireless power transmission system. For example, the detection equipment is installed at the receiving end to detect the receiving coil. It is impossible to automatically detect the operation of the relay coil, resulting in low operation and maintenance efficiency. Summary of the Invention

[0004] This application provides a wireless power transmission system and a detection method for the wireless power transmission system, which can achieve the effect of continuous detection of relay coils and improve the operation and maintenance efficiency of the wireless power transmission system.

[0005] In a first aspect, embodiments of this application provide a wireless power transfer system, comprising:

[0006] The system consists of a transmitter, a relay coil, and a receiver. The transmitter is used to obtain energy from the high-voltage line and transmit it to the relay coil, which is used for energy transmission. The receiver is used to receive energy and provide it to the load.

[0007] The relay coil end includes multiple relay coils and a relay control module corresponding to each relay coil; the transmitting end includes a transmission control module.

[0008] The relay control module is used to obtain energy from the relay coil and convert it into the power supply voltage of the relay control module. It is also used to collect the first sensing data of the relay coil and send the first sensing data to the transmission control module.

[0009] The transmission control module is used to report the first sensor data to the server.

[0010] In some embodiments, the relay control module includes: a power supply unit, a first information acquisition unit, a relay control unit, and a first wireless communication unit;

[0011] The power supply unit is used to obtain energy from the relay coil and convert it into a power supply voltage to power the first information acquisition unit and the control module;

[0012] The first information acquisition unit is used to acquire the voltage, current, temperature, and humidity of the relay coil;

[0013] The relay control unit is used to receive the voltage, current, temperature and humidity of the relay coil and transmit them to the transmitter through the first wireless communication unit.

[0014] In some embodiments, the power supply unit includes a power supply coil, a rectifier and filter subunit, and a DC-DC converter subunit;

[0015] The power supply coil is used to obtain energy based on the magnetic coupling between the power supply coil and the relay coil.

[0016] The rectifier and filter subunit is used to rectify and filter the AC voltage of the power supply coil to obtain DC voltage;

[0017] The DC-DC converter subunit is used to regulate DC voltage.

[0018] In some embodiments, the rectifier filter subunit includes: a rectifier diode and a filter capacitor;

[0019] A rectifier diode is used to perform unidirectional half-wave rectification of the AC voltage of the power supply coil to obtain a rectified signal.

[0020] The filter capacitor is used to filter the rectified signal to obtain a DC voltage.

[0021] In some embodiments, the first information acquisition unit includes: a current transformer, a voltage transformer, and a temperature and humidity sensor;

[0022] Current transformers are used to collect the current in relay coils;

[0023] Voltage transformers are used to collect the voltage of relay coils;

[0024] Temperature and humidity sensors are used to collect the temperature and humidity of the environment in which the relay coil is located.

[0025] In some embodiments, the receiving end includes a receiving control module;

[0026] The receiving control module is used to collect the second sensor data of the receiving end when energy is received at the receiving end, and send a wake-up command to the relay control module and the transmitting control module.

[0027] The transmission control module is used to collect third-sensor data from the transmitter in response to a wake-up command.

[0028] The relay control module is used to send the first sensor data to the transmitter in response to the wake-up command;

[0029] The receiving control module is also used to send the second sensor data to the transmitting control module;

[0030] The transmission control module is used to report the first sensor data, the second sensor data, and the third sensor data to the server.

[0031] In some embodiments, the transmission control module is further configured to receive an abnormal power-off command sent by the server, and control the wireless power transmission system to power off according to the abnormal power-off command; the abnormal power-off command is issued by the server based on the abnormal detection results after performing anomaly detection based on the first sensor data, the second sensor data and the third sensor data.

[0032] Secondly, embodiments of this application provide a detection method for a wireless power transfer system, applied to the aforementioned wireless power transfer system, comprising:

[0033] The relay control module collects the first sensing data from the relay coil and sends the first sensing data to the transmission control module. The relay control module is used to obtain energy from the relay coil and convert it into the power supply voltage of the relay control module. The first sensing data is then sent to the server through the transmission control module.

[0034] Thirdly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement various possible implementations of the detection method for the wireless power transmission system described above.

[0035] Fourthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements various possible implementations of the detection method for the wireless power transfer system described above.

[0036] The wireless power transmission system and its detection method provided in this application include a transmitter, a relay coil, and a receiver. The transmitter obtains energy from a high-voltage line and transmits it to the relay coil, which performs energy transmission. The receiver receives energy and provides it to a load. A relay control module corresponding to the relay coil is provided in the wireless power transmission system. A transmission control module is provided at the transmitter. The relay control module obtains energy from the relay coil and converts it into its power supply voltage, thus enabling the relay control module to operate automatically. The power supply and relay control module is also used to collect the first sensing data of the relay coil. This first sensing data is sent to the transmission control module, which then reports it to the server. The server then uses this data to detect the relay coil. The relay control module can collect the first sensing data of the relay coil and is self-powered, avoiding reliance on an external power source. This allows for uninterrupted collection of the relay coil's first sensing data, enabling continuous detection of faults and significantly improving maintenance efficiency. Attached Figure Description

[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0038] Figure 1 Schematic diagram of the wireless power transfer system provided in this application Figure 1 ;

[0039] Figure 2 Schematic diagram of the wireless power transfer system provided in this application Figure 2 ;

[0040] Figure 3 A schematic diagram of the relay control module provided in this application;

[0041] Figure 4 This is a schematic diagram of the power supply unit provided in this application;

[0042] Figure 5 A schematic diagram of the structure of the first information acquisition unit provided in this application;

[0043] Figure 6 A flowchart illustrating the detection method for the wireless power transfer system provided in this application.

[0044] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0045] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0046] The wireless power transmission system involved in this application is widely used in high-voltage transmission lines of power systems. With the development of digitalization and intelligence in the power grid industry, the demand for real-time monitoring of transmission lines in power systems is increasing. In related technologies, wireless power transmission systems are monitored by detection equipment. However, due to power supply limitations of the detection equipment, the detection equipment can only monitor a small area of ​​the wireless power transmission system.

[0047] The technical concept of this application is as follows: For a relay coil in a wireless power transmission system, a relay control module corresponding to the relay coil is set up, and a transmission control module is set up at the transmitting end. The relay control module obtains energy from the relay coil and converts it into its own power supply voltage, thus achieving self-powering. The relay control module also uses the first sensing data of the relay coil to send the first sensing data to the transmission control module, which then reports the first sensing data to the server, enabling the server to detect the relay coil based on the first sensing data. The relay control module can collect the first sensing data of the relay coil, and its self-powering nature avoids dependence on an external power source. This allows the relay control module to continuously collect the first sensing data of the relay coil, achieving uninterrupted detection of the relay coil and timely discovery of faults, significantly improving maintenance efficiency.

[0048] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0049] Figure 1 Schematic diagram of the wireless power transfer system provided in this application Figure 1 ,like Figure 1As shown, the wireless power transfer system includes: a transmitter, a relay coil, and a receiver; the transmitter is used to obtain energy from the high-voltage line and transmit it to the relay coil, the relay coil is used for energy transfer, and the receiver is used to receive energy and provide it to the load;

[0050] The relay coil end includes multiple relay coils and a relay control module corresponding to each relay coil; the transmitting end includes a transmission control module.

[0051] The relay control module is used to obtain energy from the relay coil and convert it into the power supply voltage of the relay control module. It is also used to collect the first sensing data of the relay coil and send the first sensing data to the transmission control module.

[0052] The transmission control module is used to report the first sensor data to the server.

[0053] The transmitting end also includes: an energy harvesting module, an energy conversion module, a transmitting coil, and a transmitting control module; the energy harvesting module is used to extract electrical energy from the high-voltage transmission line through electromagnetic induction, and the energy harvesting module can be a CT energy harvester; the energy conversion module includes a first DC-DC module and a high-frequency inverter module, the DC-DC module converts DC power into high-frequency AC power, and the high-frequency inverter module is used to generate a high-frequency square wave signal; the high-frequency inverter module supplies power to the transmitting control module.

[0054] The receiving end includes: a receiving coil, a high-frequency rectification module, a second DC-DC module, and a receiving control module; the receiving coil receives the energy transmitted through the relay coil, and after processing by the high-frequency rectification module and the second DC-DC module, it supplies power to the load.

[0055] For example, wireless power transfer systems such as Figure 2 As shown, the transmitting end includes: a CT energy harvester, a first DC-DC module, a high-frequency inverter module, a transmitting coil, and a transmitting control module; the relay coil end includes: multiple relay coils and a relay control module corresponding to each relay coil; the receiving end includes: a receiving coil, a high-frequency rectifier module, a second DC-DC module, and a receiving control module.

[0056] The CT energy harvester is installed on the high-voltage transmission line, and the first DC-DC module, high-frequency inverter module, transmitting coil, transmitting control module, relay coil terminal, receiving coil and receiving control module are installed on the insulator; the high-frequency rectifier module and the second DC-DC module are installed on the high-voltage tower.

[0057] The first DC-DC module and the high-frequency inverter module are integrated at the front end of the insulator, the transmitting coil, multiple relay coils and the receiving coil are integrated in the insulator skirt, and the high-frequency rectifier module and the second DC-DC module are integrated at the tail end of the insulator; optionally, the transmitting control module, the relay control module and the receiving control module are integrated in the insulator skirt.

[0058] When the wireless power transfer system is working, the transmitter outputs energy through the transmitting coil. The energy is transmitted to the receiving coil through multiple relay coils. The receiving coil then powers the load through the high-frequency rectification module and the second DC-DC module. Simultaneously, the relay control module obtains energy from the relay coils through magnetic coupling and converts it into its power supply voltage. This allows the relay control module to collect the first sensing data from the relay coils and send it to the transmitting control module. The transmitting control module then sends the first sensing data to the server, enabling the server to detect the relay coils based on this data.

[0059] The wireless power transmission system provided in this application includes: a transmitter, a relay coil, and a receiver. The transmitter obtains energy from a high-voltage line and transmits it to the relay coil, which performs energy transmission. The receiver receives energy and provides it to a load. A relay control module corresponding to the relay coil is set up in the wireless power transmission system. A transmission control module is set up at the transmitter. The relay control module obtains energy from the relay coil and converts it into its own power supply voltage, thus achieving self-powering. The relay control module also receives first sensing data from the relay coil and sends the first sensing data to the transmission control module. The transmission control module then reports the first sensing data to a server, allowing the server to detect the relay coil based on the first sensing data. The relay control module can collect the first sensing data from the relay coil and is self-powered, avoiding dependence on an external power source. This allows the relay control module to continuously collect the first sensing data from the relay coil, enabling uninterrupted detection of the relay coil and timely discovery of faults, significantly improving maintenance efficiency.

[0060] In some embodiments, reference Figure 3 The relay control module includes: a power supply unit, a first information acquisition unit, a relay control unit, and a first wireless communication unit; the power supply unit is used to obtain energy from the relay coil and convert it into a power supply voltage to power the first information acquisition unit and the control module; the first information acquisition unit is used to acquire the voltage, current, temperature, and humidity of the relay coil; the relay control unit is used to receive the voltage, current, temperature, and humidity of the relay coil and transmit them to the transmission control module through the first wireless communication unit.

[0061] Specifically, the power supply unit is connected to the relay control unit, and the relay control unit is connected to the first information acquisition unit; the relay control unit and the transmission control module can communicate wirelessly.

[0062] The power supply unit obtains energy from the relay coil through magnetic coupling and converts it into a power supply voltage to power the relay control unit and the first information acquisition unit.

[0063] The first information acquisition unit acquires the voltage, current, temperature, and humidity of the relay coil. Through the wired connection between the first information acquisition unit and the relay control unit, it transmits the voltage, current, temperature, and humidity of the relay coil to the relay control unit. The relay control unit then transmits the voltage, current, temperature, and humidity of the relay coil to the transmission control module through the first wireless communication unit.

[0064] Optionally, the relay control module also includes a storage unit. After receiving the voltage, current, temperature and humidity of the relay coil, the relay control unit stores the voltage, current, temperature and humidity of the relay coil in the storage unit. When it is necessary to transmit the voltage, current, temperature and humidity of the relay coil, it reads from the storage unit and then sends it to the transmission control module.

[0065] In practical applications, the storage unit can be a memory card or a flash memory chip.

[0066] In the above embodiments, the relay control module includes: a power supply unit, a first information acquisition unit, a relay control unit, and a first wireless communication unit. The power supply unit enables the relay control module to be self-powered, avoiding dependence on external power sources, and allowing the relay control module to continuously acquire the first sensing data of the relay coil.

[0067] In some embodiments, the power supply unit includes a power supply coil, a rectifier and filter subunit, and a DC-DC converter subunit; the power supply coil is used to obtain energy based on the magnetic coupling between the power supply coil and the relay coil; the rectifier and filter subunit is used to rectify and filter the AC voltage of the power supply coil to obtain a DC voltage; and the DC-DC converter subunit is used to regulate the DC voltage.

[0068] Specifically, the power supply coil obtains AC energy through magnetic coupling with the relay coil. The rectifier and filter subunit rectifies and filters the AC energy obtained by the power supply coil to obtain DC voltage. The DC-DC conversion subunit converts the DC voltage into a stable DC voltage required by the first information acquisition unit and the relay control unit. For example, the DC-DC conversion subunit converts the DC voltage into a stable 5V or 3.3V output. In practical applications, the DC-DC conversion subunit can be implemented using a DC / DC conversion circuit.

[0069] Optionally, the power supply coil can be implemented using a multi-layer winding structure and a dynamic impedance matching circuit. The multi-layer winding structure improves the magnetic coupling efficiency between the power supply coil and the relay coil by optimizing the magnetic flux density distribution. The dynamic impedance matching circuit adjusts the impedance of the power supply coil according to the load changes of the first information acquisition unit and the relay control unit to maximize the energy capture capability.

[0070] For example, the power supply coil is composed of multi-layer copper wire spiral windings, with the layers separated by insulating materials. The multi-layer spiral winding structure solves the problem of insufficient energy capture efficiency of the power supply coil, and the insulating materials prevent short circuits, ensuring stable energy capture of the power supply coil in the complex electromagnetic environment of high-voltage transmission lines.

[0071] In the above embodiments, the relay control module is self-powered by magnetic coupling between the power supply coil and the relay coil, avoiding dependence on external power sources. This allows the relay control module to continuously collect the first sensing data of the relay coil and perform real-time detection of the relay coil.

[0072] In some embodiments, the rectifier-filter subunit includes: a rectifier diode and a filter capacitor; the rectifier diode is used to perform unidirectional half-wave rectification on the AC voltage of the power supply coil to obtain a rectified signal; the filter capacitor is used to filter the rectified signal to obtain a DC voltage.

[0073] For example, such as Figure 4 As shown, one end of the power supply coil is connected to the positive terminal of the rectifier diode, and the negative terminal of the rectifier diode is connected to the positive terminal of the filter capacitor and the positive input terminal of the DC-DC converter subunit. The other end of the power supply coil is connected to the negative terminal of the filter capacitor and the negative input terminal of the DC-DC converter subunit. The output terminal of the DC-DC converter subunit outputs the stable DC voltage required by the first information acquisition unit and the relay control unit.

[0074] In the above embodiments, rectification and filtering are achieved through rectifier diodes and filter capacitors to convert the energy obtained by the power supply coil into DC voltage, thereby improving the stability of the relay control module and enhancing the long-term reliability of the system.

[0075] In some embodiments, the first information acquisition unit includes: an information acquisition controller, a current transformer, a voltage transformer, and a temperature and humidity sensor; the current transformer is used to acquire the current of the relay coil; the voltage transformer is used to acquire the voltage of the relay coil; and the temperature and humidity sensor is used to acquire the temperature and humidity of the environment in which the relay coil is located.

[0076] For example, refer to Figure 5 , Figure 5An equivalent schematic diagram of the information acquisition controller, current transformer, voltage transformer, temperature and humidity sensor, and capacitor compensation plate of the relay coil is shown. The primary side of the current transformer is connected in series with the relay coil, and the secondary side of the current transformer is connected to the information acquisition controller; the primary side of the voltage transformer is connected in parallel with the relay coil, and the secondary side of the voltage transformer is connected to the information acquisition controller; the temperature and humidity sensor is connected to the information acquisition controller, and the temperature and humidity sensor can be installed at the end of the relay coil.

[0077] Optionally, the first information acquisition unit can be implemented through a distributed sensor network. The distributed sensor network covers the key parameters of the relay coil, such as the voltage, current, temperature and humidity of the relay coil. The timing consistency of the data from each sensor is ensured through a multi-channel synchronous acquisition circuit to avoid data deviation caused by different sampling timing. A dynamic sampling strategy is adopted to adjust the sampling frequency according to the system operating status (such as high load, abnormal temperature rise) (low frequency sampling in normal state, high frequency sampling in abnormal state) to balance data accuracy and energy consumption.

[0078] In the above embodiments, the first sensing data of the relay coil is collected by current transformers, voltage transformers, and temperature and humidity sensors, which comprehensively covers the operating parameters of the relay coil, realizes accurate monitoring of the operating status of the relay coil, can dynamically judge the operating status of the relay coil, promptly detect the abnormality of the relay coil, and improves the operation and maintenance efficiency.

[0079] In some embodiments, the receiving end includes a receiving control module; the receiving control module is configured to, when the receiving end receives energy, collect second sensing data of the receiving end and send a wake-up command to the relay control module and the transmitting control module; the transmitting control module is configured to, in response to the wake-up command, collect third sensing data of the transmitting end; the relay control module is configured to, in response to the wake-up command, send first sensing data to the transmitting end; the receiving control module is further configured to send second sensing data to the transmitting control module; and the transmitting control module is configured to report the first sensing data, the second sensing data, and the third sensing data to the server.

[0080] Specifically, the receiving control module includes: a second information acquisition unit, a receiving control unit, and a second wireless communication unit; when the receiving end receives energy, the high-frequency rectification module of the receiving end supplies power to the receiving control module, and the receiving control unit is also used to send a wake-up command to the relay control module and the transmitting control module when the receiving end receives energy.

[0081] The second information acquisition unit is used to acquire the second sensing data of the receiving coil (including the voltage, current and temperature and humidity of the receiving coil), and the receiving control unit is used to send the second sensing data to the transmitting control module through the second wireless communication unit.

[0082] Specifically, the transmission control module includes: a third information acquisition unit, a transmission control unit, and a third wireless communication unit; the high-frequency inverter module at the transmitting end supplies power to the transmission control module; the transmission control unit is used to control the third information acquisition unit to acquire the third sensor data (including the voltage, current, and temperature and humidity of the transmission coil) of the transmission coil when it receives a wake-up command sent by the receiving control unit; the transmission control unit is used to receive the first sensor data and the second sensor data through the third wireless communication unit, and send the first sensor data, the second sensor data, and the third sensor data to the server.

[0083] The server can monitor the operation of the wireless power transmission system based on the first, second, and third sensor data.

[0084] In practical applications, the first, second, and third wireless communication units can be implemented via WiFi or LoRa, and can also be configured with 4G or 5G data transmission and reception capabilities. Optionally, the first, second, and third wireless communication units support adaptive communication protocols, combining a channel state detection module and a dynamic parameter adjustment algorithm to dynamically adjust the communication frequency, modulation method, or transmission power, and enable a redundant data transmission mechanism.

[0085] In the above embodiments, when the receiving end receives energy, a wake-up command is sent to the relay control module and the transmission control module. This triggers the relay control module to send the first sensor data to the transmission control module, and the transmission control module to report the first, second, and third sensor data. This enables the reporting of all operational data of the wireless energy transmission system to the server, achieving comprehensive monitoring of the wireless energy transmission system.

[0086] In some embodiments, the transmission control module is further configured to receive an abnormal power-off command sent by the server, and control the wireless power transmission system to power off according to the abnormal power-off command; the abnormal power-off command is issued by the server based on the abnormal detection results after performing anomaly detection based on the first sensor data, the second sensor data and the third sensor data.

[0087] Specifically, the server detects the wireless power transmission system based on the first, second, and third sensor data. If an abnormal detection result is obtained, it can send an abnormal power-off command to the transmission control module. The transmission control module controls the high-frequency inverter module to power off according to the abnormal power-off command.

[0088] Optionally, in cases where there is a security risk, the server can also send an abnormal power-off command to the transmission control module; for example, in severe environments such as hail, snowstorms, or hurricanes, the server can send an abnormal power-off command to the transmission control module.

[0089] The wireless power transmission system provided in this application includes: a transmitter, a relay coil, and a receiver. The transmitter obtains energy from a high-voltage line and transmits it to the relay coil, which performs energy transmission. The receiver receives energy and provides it to a load. A relay control module corresponding to the relay coil is set up in the wireless power transmission system. A transmission control module is set up at the transmitter. The relay control module obtains energy from the relay coil and converts it into its own power supply voltage, thus achieving self-powering. The relay control module also receives first sensing data from the relay coil and sends the first sensing data to the transmission control module. The transmission control module then reports the first sensing data to a server, allowing the server to detect the relay coil based on the first sensing data. The relay control module can collect the first sensing data from the relay coil and is self-powered, avoiding dependence on an external power source. This allows the relay control module to continuously collect the first sensing data from the relay coil, enabling uninterrupted detection of the relay coil and timely discovery of faults, significantly improving maintenance efficiency.

[0090] This application also provides a detection method for a wireless power transfer system, such as... Figure 6 As shown, the wireless power transfer system described above includes:

[0091] S601. The relay control module collects the first sensing data of the relay coil and sends the first sensing data to the transmission control module; the relay control module is used to obtain energy from the relay coil and convert it into the power supply voltage of the relay control module.

[0092] S602, The first sensor data is sent to the server through the transmission control module.

[0093] In some embodiments, the first information acquisition unit includes: a current transformer, a voltage transformer, and a temperature and humidity sensor; the detection method for the wireless power transfer system further includes:

[0094] The current of the relay coil is collected by a current transformer, the voltage of the relay coil is collected by a voltage transformer, and the temperature and humidity of the environment in which the relay coil is located are collected by a temperature and humidity sensor.

[0095] In some embodiments, the detection method of the wireless power transmission system further includes: when the receiver receives energy, collecting second sensor data of the receiver through the receiving control module, and sending a wake-up command to the relay control module and the transmitting control module;

[0096] The transmission control module, in response to the wake-up command, collects third-sensor data from the transmitter.

[0097] The relay control module, in response to the wake-up command, sends the first sensor data to the transmitter.

[0098] The second sensor data is sent to the transmission control module via the receiving control module.

[0099] The first, second, and third sensor data are reported to the server via the transmission control module.

[0100] The detection method for a wireless power transmission system provided in this application embodiment sets up a relay control module corresponding to the relay coil in the wireless power transmission system, and sets up a transmission control module at the transmitting end. The relay control module obtains energy from the relay coil and converts it into the power supply voltage of the relay control module, realizing the self-powered operation of the relay control module. The relay control module is also used to collect the first sensing data of the relay coil and sends the first sensing data to the transmission control module. The transmission control module reports the first sensing data to the server so that the server can detect the relay coil based on the first sensing data. The relay control module can collect the first sensing data of the relay coil and realizes self-powered operation, avoiding dependence on external power supply. This allows the relay control module to continuously collect the first sensing data of the relay coil, realizing uninterrupted detection of the relay coil, timely detection of faults in the relay coil, and significantly improving operation and maintenance efficiency.

[0101] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0102] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0103] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0104] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0105] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0106] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0107] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0108] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0109] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0110] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0111] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A wireless power transfer system, characterized in that, include: The system comprises a transmitter, a relay coil, and a receiver; the transmitter is used to obtain energy from the high-voltage line and transmit it to the relay coil, the relay coil is used for energy transmission, and the receiver is used to receive energy and provide it to the load. The relay coil end includes multiple relay coils and a relay control module corresponding to each relay coil; the transmitting end includes a transmitting control module. The relay control module is used to obtain energy from the relay coil through magnetic coupling and convert it into the power supply voltage of the relay control module. It is also used to collect the first sensing data of the relay coil and send the first sensing data to the transmission control module. The transmission control module is used to report the first sensor data to the server.

2. The system according to claim 1, characterized in that, The relay control module includes: a power supply unit, a first information acquisition unit, a relay control unit, and a first wireless communication unit; The power supply unit is used to obtain energy from the relay coil and convert it into a power supply voltage to power the first information acquisition unit and the control module. The first information acquisition unit is used to acquire the voltage, current, and temperature and humidity of the relay coil; The relay control unit is used to receive the voltage, current, temperature, and humidity of the relay coil and transmit them to the transmission control module through the first wireless communication unit.

3. The system according to claim 2, characterized in that, The power supply unit includes a power supply coil, a rectifier and filter subunit, and a DC-DC converter subunit; The power supply coil is used to obtain energy based on the magnetic coupling between the power supply coil and the relay coil; The rectifier and filter subunit is used to rectify and filter the AC voltage of the power supply coil to obtain DC voltage; The DC-DC converter subunit is used to regulate the DC voltage.

4. The system according to claim 3, characterized in that, The rectifier and filter subunit includes: a rectifier diode and a filter capacitor; The rectifier diode is used to perform unidirectional half-wave rectification on the AC voltage of the power supply coil to obtain the rectified signal. The filter capacitor is used to filter the rectified signal to obtain a DC voltage.

5. The system according to claim 2, characterized in that, The first information acquisition unit includes: a current transformer, a voltage transformer, and a temperature and humidity sensor; The current transformer is used to collect the current of the relay coil; The voltage transformer is used to collect the voltage of the relay coil; The temperature and humidity sensor is used to collect the temperature and humidity of the environment in which the relay coil is located.

6. The system according to any one of claims 1 to 5, characterized in that, The receiving end includes a receiving control module; The receiving control module is used to collect the second sensor data of the receiving end when the receiving end receives energy, and send a wake-up command to the relay control module and the transmitting control module. The transmission control module is used to collect third sensor data from the transmitting end in response to the wake-up command; The relay control module is used to send the first sensor data to the transmitter in response to the wake-up command; The receiving control module is further configured to send the second sensing data to the transmitting control module; The transmission control module is used to report the first sensor data, the second sensor data, and the third sensor data to the server.

7. The system according to claim 6, characterized in that, The transmission control module is also used to receive an abnormal power-off command sent by the server, and control the wireless power transmission system to power off according to the abnormal power-off command; the abnormal power-off command is issued by the server based on the abnormal detection result after performing anomaly detection based on the first sensor data, the second sensor data and the third sensor data.

8. A detection method for a wireless power transfer system, characterized in that, The wireless power transfer system as described in any one of claims 1 to 7 comprises: The relay control module collects the first sensing data of the relay coil and sends the first sensing data to the transmission control module; the relay control module is used to obtain energy from the relay coil and convert it into the power supply voltage of the relay control module. The first sensor data is sent to the server via the transmission control module.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in claim 8.

10. A computer program product, characterized in that, It includes computer execution instructions that, when executed by a processor, implement the method as described in claim 8.

Images