Internal electromagnetic wave powered non-metallic material intelligent structure and self-sensing method thereof

Abstract

The application discloses an internal electromagnetic wave power supplied nonmetallic material intelligent structure and a self-sensing method thereof, and relates to the technical field of nonmetallic material intelligent structures. The structure comprises a nonmetallic material structure, a plurality of passive wireless intelligent aggregates embedded in the nonmetallic material structure, and a conductive coil assembly embedded in the surface layer of the nonmetallic material structure, forming an integrated structure. The conductive coil assembly is connected with an external high-frequency alternating oscillation power supply. In the passive wireless intelligent aggregate, a wireless power receiving unit is electromagnetically resonant with the conductive coil assembly through the power receiving coil, so as to realize wireless power transmission. The wireless sensor unit collects the structure state information of the nonmetallic material structure. The application integrates wireless sensing technology, wireless power supply technology and nonmetallic material structure, supplies power for each passive wireless intelligent aggregate, wirelessly transmits the monitoring information, and realizes the self-sensing function of the internal information of the structure.

Description

Technical Field

[0001] The present invention relates to the technical field of structural state detection of non-metallic materials, and in particular to an internal electromagnetic wave powered non-metallic material intelligent structure and a self-sensing method thereof. Background Art

[0002] Existing non-metallic material structures such as concrete, carbon fiber, and fiberglass composite materials generally do not have self-sensing functions and require the use of other measuring devices for detection. In addition, there are problems such as difficult installation of detection equipment and cumbersome wiring construction. Therefore, the development of a non-metallic material intelligent structure with self-sensing functions has important application prospects.

[0003] Currently, the main method of sensing engineering structures is to install a large number of sensors on the outside of the structure to monitor the structure's status information. These sensors generally use wired power supply and wired data collection of structural physical parameters. If a large number of sensors are pre-embedded inside such structures, the wired method requires a large number of connections to the interior of the structure, resulting in inconvenient production and high costs. If passive wireless sensors are pre-buried in the structure, the problems caused by wiring can be solved, but how to power the large number of passive wireless sensors inside these structures becomes a new technical difficulty.

[0004] Therefore, installing passive wireless sensors inside the structure to form an integrated intelligent structure requires solving two technical difficulties. The first is to design a structure that can generate electromagnetic waves inside and form an electromagnetic wave radiation field with a certain power. The second is how the passive wireless sensors can obtain the energy emitted by this structure and form a network to collect physical parameter information of the structure's own state. Summary of the Invention

[0005] The purpose of the present invention is to provide a non-metallic material intelligent structure powered by internal electromagnetic waves and a self-sensing method thereof, which integrates wireless sensing technology, wireless power supply technology and non-metallic material structure, can provide power for the passive wireless intelligent aggregate inside the non-metallic material structure, and wirelessly transmit its monitoring information, thereby realizing the self-sensing function of the internal information of the structure, which is beneficial to the structural health status monitoring of the non-metallic material structure.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] In one aspect, the present invention provides a non-metallic material intelligent structure powered by internal electromagnetic waves, comprising: a non-metallic material structure, a plurality of passive wireless intelligent aggregates embedded in the non-metallic material structure, and a conductive coil assembly nested on the surface of the non-metallic material structure, wherein the non-metallic material structure, the passive wireless intelligent aggregates, and the conductive coil assembly form an integrated structure; the conductive coil assembly is used to connect to an external high-frequency alternating oscillation power supply;

[0008] The passive wireless intelligent aggregate includes a non-metallic waterproof shell and a wireless power receiving unit, a rectifier and voltage-stabilizing circuit unit and a wireless sensor unit arranged in the non-metallic waterproof shell. The wireless power receiving unit includes an electrically connected power receiving coil and a first capacitor. The wireless power receiving unit realizes wireless power transmission through electromagnetic resonance induction between its power receiving coil and the conductive coil component on the surface of the non-metallic material structure; the wireless power receiving unit is electrically connected to the rectifier and voltage-stabilizing circuit unit to generate a stable voltage output; the rectifier and voltage-stabilizing circuit unit is electrically connected to the wireless sensor unit to power the wireless sensor unit; the wireless sensor unit is used to collect structural status information of the non-metallic material structure.

[0009] Furthermore, the conductive coil assembly on the surface of the non-metallic material structure includes a conductive coil and a second capacitor connected in series or in parallel with the conductive coil. The conductive coil assembly is wound around the surface of the non-metallic material structure and is electrically connected to an external high-frequency alternating oscillation power supply; the external high-frequency alternating oscillation power supply generates a high-frequency alternating current to drive the conductive coil assembly to emit electromagnetic waves of a certain frequency, thereby forming an alternating electromagnetic wave radiation field inside the non-metallic material structure.

[0010] Furthermore, the conductive coil assembly is single or multiple, and the conductive coil is a single-turn or multi-turn structure, which is wound around the surface of the non-metallic material structure; the winding method of the conductive coil assembly around the non-metallic material structure can be in various forms, including spiral tube winding on the surface of the non-metallic material structure and multiple conductive coil assemblies are independently nested in parallel inside the non-metallic material structure.

[0011] Furthermore, the conductive coil assembly is spirally wound on the surface of the non-metallic material structure, and the conductive coil of a conductive coil assembly is spirally wound from one end of the non-metallic material structure to the other end, completely covering the surface of the non-metallic material structure.

[0012] Furthermore, the multiple conductive coil assemblies are independently nested in parallel inside the non-metallic material structure, and the multiple conductive coil assemblies are parallel and independent of each other. One of the conductive coil assemblies is electrically connected to the external high-frequency alternating oscillation power supply, and transmits electrical energy to the other multiple conductive coil assemblies through electromagnetic wave resonant coupling. The electromagnetic wave resonant frequency is the resonant frequency of the conductive coil and the second capacitor, and the electromagnetic resonant frequency of all the conductive coil assemblies is the same.

[0013] Furthermore, the conductive coil assembly forms an alternating electromagnetic field at various locations inside the non-metallic material structure, and the alternating electromagnetic field is electromagnetically inductively coupled with the wireless power receiving units of multiple passive wireless sensors inside the non-metallic material structure to receive the electromagnetic wave energy radiated by the conductive coil assembly; the wireless power receiving unit is electrically connected to the rectification and voltage stabilization circuit unit and the wireless sensor unit in sequence to wirelessly power each passive wireless intelligent aggregate inside the non-metallic material structure.

[0014] Furthermore, all of the wireless sensor units are installed inside a non-metallic material structure and are covered by the electromagnetic waves generated by the conductive coil assembly; the wireless sensor units include sensors, data acquisition modules, data storage modules and wireless signal transmission modules, the data acquisition module is electrically connected to the sensor and is used to obtain structural status information collected by the sensor, the data storage device is connected to the data acquisition module and is used to store the structural status information, and the wireless signal transmission module is connected to the data acquisition module and is used to wirelessly transmit the structural status information.

[0015] Furthermore, the sensor is a sensor array composed of one or more of a sound sensor, a strain sensor, a pressure sensor, a vibration acceleration sensor, an inclination sensor, a temperature and humidity sensor, a pH sensor, and an impedance sensor.

[0016] Furthermore, the wireless signal transmission module is one of a WiFi communication module, a Bluetooth communication module, a LoRa communication module, and a 4G / 5G communication module.

[0017] Furthermore, the wireless sensor unit is wirelessly connected to the monitoring base station via wireless communication, and is used to wirelessly transmit the structural status information to the monitoring base station.

[0018] Furthermore, the plurality of passive wireless intelligent aggregates can communicate with each other wirelessly via the wireless signal transmission module of the wireless sensor unit.

[0019] In another aspect, the present invention provides a self-sensing method for a non-metallic material intelligent structure powered by internal electromagnetic waves, which is applied to the above-mentioned non-metallic material intelligent structure powered by internal electromagnetic waves, and comprises the following steps:

[0020] The conductive coil assembly is connected to an external high-frequency alternating oscillation power supply to form an alternating electromagnetic field inside the non-metallic material structure, and provides power to the wireless power receiving unit inside the passive wireless intelligent aggregate through inductive coupling or resonant coupling. The wireless power receiving unit is electrically connected to the rectifier and voltage stabilization circuit unit to power the wireless sensor unit.

[0021] After the wireless sensor unit is powered on, the structural state information of the non-metallic material structure is collected through the sensor;

[0022] Multiple passive wireless intelligent aggregates communicate with each other wirelessly through the wireless signal transmission module of the wireless sensor unit, and jointly monitor the structural status information. At the same time, the identity information and structural status information of the non-metallic material structure are transmitted to the monitoring base station through wireless communication, or instructions from the monitoring base station are received.

[0023] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0024] The present invention provides an internally electromagnetically powered non-metallic intelligent structure. The structure is composed of a non-metallic structure, multiple passive wireless intelligent aggregates embedded within the structure, and a conductive coil assembly nested within the surface of the non-metallic structure. The structure utilizes contactless electromagnetic power supply and wireless sensing within the structure, providing self-sensing of structural status information. The conductive coil assembly nested within the structure's surface generates an alternating electromagnetic field within the structure, providing power to the multiple passive wireless intelligent aggregates through inductive coupling or resonant coupling. This stimulates the passive wireless intelligent aggregates to power on, senses the structure's structural status and identity, and wirelessly transmits this information to an external monitoring base station.

[0025] The non-contact electromagnetic wave power supply method inside the structure of the present invention solves the power supply problem of multiple sensor units inside the structure, and wireless sensing solves the problem of perception and communication of internal state information of the structure. Therefore, multiple passive wireless intelligent aggregates inside the structure are scattered inside the structure and are independent of each other in space. They can perceive the structural state information of each space inside the structure, avoiding the laying of a large number of power lines and signal lines inside the structure, and overcoming the series of disadvantages such as installation inconvenience and signal interference brought about by wired power supply and wired sensing of the internal sensor units of the monitored structures in the current field of structural health monitoring. At the same time, the non-metallic materials, passive wireless intelligent aggregates and conductive coil components of the structure are easy to combine and integrate, and are convenient for making an integrated structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic structural diagram of a conductive coil assembly according to an embodiment of the present invention;

[0028] Figure 2This is a schematic structural diagram of a passive wireless intelligent aggregate according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic structural diagram of a non-metallic intelligent structure of internal electromagnetic wave power supply, which is a spiral tube-wound type according to Example 1 of the present invention;

[0030] Figure 4 This is a schematic structural diagram of a non-metallic intelligent structure with internal electromagnetic wave power supply, in which multiple conductive coil assemblies are nested in parallel according to Example 2 of the present invention;

[0031] Explanation of reference numerals: 1. External high-frequency alternating oscillation power supply, 2. Passive wireless intelligent aggregate, 3. Non-metallic material structure, 4. Conductive coil assembly, 4-1. Conductive coil, 4-2. Second capacitor, 5. Monitoring base station;

[0032] 2-1. Wireless power receiving unit, 2-2. Rectifier and voltage stabilization circuit unit, 2-3. Wireless sensor unit, 2-4. Non-metallic waterproof housing. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] The purpose of the present invention is to provide a non-metallic material intelligent structure powered by internal electromagnetic waves and a self-sensing method thereof, which integrates wireless sensing technology, wireless power supply technology and non-metallic material structure, can provide power for the passive wireless intelligent aggregate inside the non-metallic material structure, and wirelessly transmit its monitoring information, thereby realizing the self-sensing function of the internal information of the structure, which is beneficial to the structural health status monitoring of the non-metallic material structure.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 As shown, the conductive coil assembly 4 includes a conductive coil 4 - 1 and a second capacitor 4 - 2 .

[0037] like Figure 2As shown, the passive wireless intelligent aggregate 2 includes a non-metallic waterproof shell 2-4 and a wireless sensor unit 2-3, a rectifier and voltage stabilizing circuit unit 2-2 and a wireless power receiving unit 2-1 arranged in the non-metallic waterproof shell 2-4, and the wireless power receiving unit 2-1 includes an electrically connected power receiving coil and a first capacitor.

[0038] like Figure 3 、 Figure 4 As shown, the present invention provides a non-metallic material intelligent structure powered by internal electromagnetic waves, comprising: a non-metallic material structure 3, a plurality of passive wireless intelligent aggregates 2 embedded in the non-metallic material structure 3, and a conductive coil assembly 4 embedded in the surface layer of the non-metallic material structure 3. The non-metallic material structure 3, the passive wireless intelligent aggregate 2, and the conductive coil assembly 4 form an integrated structure; the conductive coil assembly 4 is connected to an external high-frequency alternating oscillation power supply 1;

[0039] The conductive coil assembly 4 includes a conductive coil 4-1 and a second capacitor 4-2. The conductive coil 4-1 and the second capacitor 4-2 can be connected in series or in parallel. The conductive coil 4-1 is a single-turn or multi-turn structure and is wound on the surface of the non-metallic material structure 3. The winding method of the conductive coil assembly 4 on the non-metallic material structure can be in various forms, including spiral tube winding on the surface of the non-metallic material structure and multiple conductive coil assemblies are independently nested in parallel inside the non-metallic material structure.

[0040] like Figure 3 As shown, the conductive coil assembly 4 is spirally wound on the surface of the non-metallic material structure, and the external high-frequency alternating oscillation power supply 1 is electrically connected to the conductive coil assembly 4. The external high-frequency alternating oscillation power supply 1 generates an alternating current to drive the conductive coil assembly 4 to emit electromagnetic waves of a certain frequency, thereby forming an alternating magnetic field everywhere inside the non-metallic material structure 3.

[0041] like Figure 4 As shown, the multiple conductive coil assemblies 4 are independently nested in parallel inside the non-metallic material structure. The multiple conductive coil assemblies 4 are parallel and independent of each other, and one of the conductive coil assemblies is electrically connected to the external high-frequency alternating oscillation power supply 1. The multiple conductive coil assemblies 4 transmit electrical energy to each other through electromagnetic resonance coupling. The electromagnetic resonance frequency is the resonance frequency of the conductive coil and the second capacitor, and the electromagnetic resonance frequency of all conductive coil assemblies is the same; the external high-frequency alternating oscillation power supply 1 generates an alternating current to drive one of the conductive coil assemblies 4, and the other multiple conductive coil assemblies resonate and emit electromagnetic waves of a certain frequency, forming an alternating magnetic field everywhere inside the non-metallic material structure 3.

[0042] like Figure 3 、 Figure 4 As shown, the passive wireless intelligent aggregate 2 includes a non-metallic waterproof shell 2-4, a wireless sensor unit 2-3, a rectifier and voltage-stabilizing circuit unit 2-2 and a wireless power receiving unit 2-1; the power receiving coil of the wireless power receiving unit 2-1 and the conductive coil assembly 4 are electromagnetically inductively coupled to each other to realize electromagnetic wave energy transmission; the wireless power receiving unit 2-1 is electrically connected to the rectifier and voltage-stabilizing circuit unit 2-2 to power the wireless sensor unit 2-3; the wireless sensor unit 2-3 is used to collect the structural status information of the non-metallic material structure, and wirelessly transmit the monitored structural status information to the monitoring base station 5 to complete the self-sensing function of the structure's own status.

[0043] The wireless sensor unit 2-3 includes a sensor, a data acquisition module, a data storage module and a wireless signal transmission module. The data acquisition module is electrically connected to the sensor and is used to obtain the structural status information collected by the sensor. The data storage device is connected to the data acquisition module and is used to store the structural status information. The wireless signal transmission module is connected to the data acquisition module and is used to wirelessly transmit the structural status information.

[0044] For example, the sensors included in the wireless sensor unit 2-3 are a sensor array composed of one or more of a sound sensor, a strain sensor, a pressure sensor, a vibration acceleration sensor, an inclination sensor, a temperature and humidity sensor, a pH sensor, and an impedance sensor, and are used to collect parameters such as sound, strain, pressure, vibration acceleration, inclination, temperature and humidity, pH, and impedance.

[0045] The wireless signal transmission module is one of multiple communication modes such as WiFi communication module, Bluetooth communication module, LoRa communication module, 4G / 5G communication module, etc.

[0046] When the conductive coil assembly 4 nested on the outer surface of the non-metallic material structure 3 emits electromagnetic waves at a certain frequency, the wireless power receiving unit 2-1 inside the passive wireless intelligent aggregate 2 obtains electrical energy through the resonant coupling between the power receiving coil and the conductive coil assembly 4, and supplies power to the wireless sensor unit 2-3 through the rectification and voltage stabilization circuit unit 2-2. The wireless sensor unit 2-3 transmits the collected structural status information through the wireless signal transmission module to complete the self-sensing function.

[0047] The wireless sensor unit 2-3 can also pre-store the factory identity information of the non-metallic material structure in the data storage module of the wireless sensor unit 2-3, so as to obtain identification when monitoring the wireless communication of the base station, including information such as the material composition of the structure, manufacturer, production time, number, weight and structure size; the collected structure status information can collect various parameter information of the structure according to different sensor types, including structure temperature and humidity, vibration acceleration, force magnitude, strain, inclination, corrosion, ultrasound and other structure status information.

[0048] Passive wireless intelligent aggregates 2 with multiple sensing functions can be embedded inside the non-metallic material structure of the present invention. The passive wireless intelligent aggregates 2 inside the non-metallic material structure can communicate with each other wirelessly and jointly monitor the status information of the structure.

[0049] In addition, the wireless sensor unit 2-3 is wirelessly connected to the monitoring base station 5 via wireless communication, and is used to wirelessly transmit the identity information and structural status information to the monitoring base station 5. The wireless communication method can be WiFi, Bluetooth, LoRa, 4G / 5G and other communication methods.

[0050] The passive wireless intelligent aggregate 2 inside the non-metallic material structure 3 can communicate wirelessly with the external monitoring base station 5 to transmit identity information and structural status information, and can also receive instructions and other information from the external monitoring base station 5, thereby realizing the self-sensing function of the non-metallic material intelligent structure and the interaction function with the outside world.

[0051] In addition, a non-metallic material intelligent structure powered by internal electromagnetic waves can be cylindrical, cubic, polyhedral or other irregular shapes.

[0052] Multiple non-metallic intelligent structures with self-sensing functions can also be spliced ​​together to form larger multi-structures.

[0053] Example 1

[0054] like Figure 3As shown, Example 1 specifically defines a non-metallic material intelligent structure powered by internal electromagnetic waves, wherein the conductive coil assembly adopts a spiral tube winding method, the conductive coil of the conductive coil assembly 4 is a multi-turn structure, and the passive wireless intelligent aggregate 2 can be regularly distributed or randomly distributed in the non-metallic material structure, and the regular distribution can be in the form of equidistant distribution, center distribution, etc.; the external high-frequency alternating oscillation power supply 1 is electrically connected to the conductive coil assembly 4, and the external high-frequency alternating oscillation power supply 1 generates an alternating current to drive the conductive coil assembly 4 to emit electromagnetic waves of a certain frequency, thereby forming an alternating magnetic field everywhere inside the non-metallic material structure 3. The power receiving coil of the wireless power receiving unit 2-1 of the passive wireless intelligent aggregate 2 is electromagnetically inductively coupled with the conductive coil assembly 4 to realize electromagnetic wave energy transmission; the wireless power receiving unit 2-1 is electrically connected to the rectifier and voltage stabilizing circuit unit 2-2 to power the wireless sensor unit 2-3; the wireless sensor unit 2-3 is used to collect the structural status information of the non-metallic material structure, and wirelessly transmit the monitored structural status information to the monitoring base station 5 to complete the self-sensing function of the structure's own status.

[0055] Example 2

[0056] like Figure 4 As shown, Example 2 specifically defines a non-metallic material intelligent structure powered by internal electromagnetic waves, wherein the winding method of the conductive coil assembly is to adopt a form in which multiple conductive coil assemblies are nested in parallel and independently inside the non-metallic material structure; the multiple conductive coil assemblies 4 are nested in parallel and independently inside the non-metallic material structure, and the multiple conductive coil assemblies 4 are parallel and independent of each other, wherein one conductive coil assembly is electrically connected to the external high-frequency alternating oscillation power supply 1, and the multiple conductive coil assemblies 4 transmit electrical energy to each other through electromagnetic resonance coupling, and the electromagnetic resonance frequency is the resonance frequency of the conductive coil and the capacitor, and the electromagnetic resonance frequency of all conductive coil assemblies is the same; the external high-frequency alternating oscillation power supply 1 generates an alternating current to drive one of the conductive coil assemblies 4, and the other multiple conductive coil assemblies resonate and emit electromagnetic waves of a certain frequency, forming an alternating magnetic field everywhere inside the non-metallic material structure 3. When the conductive coil assembly 4 nested on the outer surface of the non-metallic material structure 3 emits electromagnetic waves at a certain frequency, the wireless power receiving unit 2-1 inside the passive wireless intelligent aggregate 2 obtains electrical energy through the resonant coupling between the power receiving coil and the conductive coil assembly 4, and supplies power to the wireless sensor unit 2-3 through the rectification and voltage stabilization circuit unit 2-2. The wireless sensor unit 2-3 transmits the collected structural status information through the wireless signal transmission module to complete the self-sensing function.

[0057] Example 3

[0058] The present invention provides a non-metallic material intelligent structure powered by internal electromagnetic waves and a self-sensing method thereof, which is applied to the above-mentioned non-metallic material intelligent structure with self-sensing function, comprising the following steps:

[0059] The conductive coil assembly is connected to an external high-frequency alternating oscillation power supply to form an alternating electromagnetic field inside the non-metallic material structure, and provides power to the wireless power receiving unit inside the passive wireless intelligent aggregate through electromagnetic induction coupling or resonant coupling. The wireless power receiving unit supplies power to the wireless sensor unit through the rectification and voltage stabilization circuit unit; after the wireless sensor unit is powered on, the structural status information of the non-metallic material structure is collected through the sensor;

[0060] Multiple passive wireless intelligent aggregates communicate with each other wirelessly through the wireless signal transmission module of the wireless sensor unit, and jointly monitor the structural status information. At the same time, the identity information and structural status information of the non-metallic material structure are transmitted to the monitoring base station through wireless communication, or instructions from the monitoring base station are received.

[0061] Specifically, a specific implementation scheme of a self-sensing method for a non-metallic material intelligent structure powered by internal electromagnetic waves is as follows:

[0062] 1. An alternating electromagnetic field is formed inside the non-metallic material structure by a conductive coil component nested on the surface of the non-metallic material structure, and electric energy is provided to the wireless power receiving unit inside the passive wireless intelligent aggregate by electromagnetic induction coupling or resonant coupling. The wireless power receiving unit and the rectifier and voltage stabilizing circuit unit are connected to the wireless sensor unit by wires for power supply.

[0063] 2. After the wireless sensor unit inside the passive wireless intelligent aggregate is powered on, it can sense the structural status information such as the position, vibration, force, deformation and posture, corrosion, fracture, etc. of the structure by collecting sensor information. The sensing function of the passive wireless intelligent aggregate is determined by the sensor type, which can be one or more sensor arrays such as sound sensor, strain sensor, pressure sensor, vibration acceleration sensor, inclination sensor, temperature and humidity sensor, pH sensor and impedance sensor.

[0064] 3. After the wireless sensor units inside the passive wireless intelligent aggregate are powered on, they can communicate with each other wirelessly inside the non-metallic material structure to jointly monitor the status information of the structure. They can also transmit the above information of the structure to an external monitoring base station or receive instructions and other information from an external monitoring base station through wireless communication. The wireless communication method can be WiFi, Bluetooth, LoRa, 4G / 5G and other communication methods to realize the self-sensing function of the non-metallic material intelligent structure and the interaction function with the outside world.

[0065] In summary, the present invention provides a non-metallic material intelligent structure powered by internal electromagnetic waves and a self-sensing method thereof, which has the following technical advantages:

[0066] 1. An integrated structure is formed by a non-metallic material structure, multiple passive wireless intelligent aggregates embedded in the non-metallic material structure, and a conductive coil component nested on the outer surface of the non-metallic material structure. It adopts wireless power supply and wireless sensing methods and has the function of self-sensing structural status information.

[0067] 2. Electromagnetic wave contactless power supply solves the problem of contactless power supply for wireless sensor units inside the structure. The conductive coil assembly embedded in the outer surface of the structure forms an alternating electromagnetic field of a certain frequency inside the structure under the drive of an external high-frequency alternating oscillation power supply. Through electromagnetic induction coupling or resonant coupling, each passive wireless intelligent aggregate inside the structure can obtain the power provided by it.

[0068] 3. Multiple passive wireless smart aggregates within the non-metallic structure provide both contactless wireless power and wireless sensing. Once powered on, the wireless sensor units can communicate wirelessly with each other within the non-metallic structure to collaboratively monitor structural status information. They can also wirelessly transmit structural status information to an external monitoring base station or receive instructions from an external monitoring base station, thus enabling the self-sensing function of the non-metallic smart structure and its interaction with the outside world. This avoids the need to run a large number of power and signal lines within the non-metallic structure, overcoming the current drawbacks of wired power supply and wired sensing for sensor units within the monitored structure, such as installation inconvenience and signal interference.

[0069] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A non-metallic intelligent structure powered by internal electromagnetic waves, characterized in that: include: A non-metallic material structure, a plurality of passive wireless intelligent aggregates embedded in the non-metallic material structure, and a conductive coil assembly embedded in the surface layer of the non-metallic material structure, wherein the non-metallic material structure, the passive wireless intelligent aggregate, and the conductive coil assembly form an integrated structure; the conductive coil assembly is used to connect to an external high-frequency alternating oscillation power supply; The passive wireless intelligent aggregate includes a non-metallic waterproof shell and a wireless power receiving unit, a rectifier and voltage stabilizing circuit unit, and a wireless sensor unit arranged in the non-metallic waterproof shell. The wireless power receiving unit includes an electrically connected power receiving coil and a first capacitor. The wireless power receiving unit realizes wireless power transmission through electromagnetic resonance induction between its power receiving coil and the conductive coil component on the surface of the non-metallic material structure; the wireless power receiving unit is electrically connected to the rectifier and voltage stabilizing circuit unit to generate a stable voltage output; the rectifier and voltage stabilizing circuit unit is electrically connected to the wireless sensor unit to supply power to the wireless sensor unit; the wireless sensor unit is used to collect structural status information of the non-metallic material structure; The conductive coil assembly includes a conductive coil and a second capacitor connected in series or in parallel with the conductive coil. The conductive coil is wound around the surface of the non-metallic material structure and is electrically connected to an external high-frequency alternating oscillation power supply. The external high-frequency alternating oscillation power supply generates a high-frequency alternating current to drive the conductive coil assembly to emit electromagnetic waves of a certain frequency, thereby forming an alternating electromagnetic wave radiation field inside the non-metallic material structure.

2. The non-metallic intelligent structure powered by internal electromagnetic waves according to claim 1, characterized in that: The conductive coil assembly is provided with one or more, and the conductive coil is a single-turn or multi-turn structure; The winding method of the conductive coil assembly nested on the non-metallic material structure includes spiral tube winding on the surface of the non-metallic material structure, and multiple conductive coil assemblies are independently nested in parallel inside the surface of the non-metallic material structure; The spirally winding on the surface of the non-metallic material structure refers to: spirally winding the conductive coil of a conductive coil assembly from one end of the non-metallic material structure to the other end, completely covering the surface of the non-metallic material structure; Multiple conductive coil assemblies are independently and parallelly nested inside the surface layer of the non-metallic material structure, which means that: multiple conductive coil assemblies are independently arranged in parallel with each other, one of the conductive coil assemblies is electrically connected to the external high-frequency alternating oscillation power supply, and transmits electrical energy to the other multiple conductive coil assemblies through electromagnetic wave resonant coupling, the electromagnetic wave resonant frequency is the resonant frequency of the conductive coil and the second capacitor, and the electromagnetic resonant frequencies of all multiple conductive coil assemblies are the same.

3. The non-metallic material intelligent structure powered by internal electromagnetic waves according to claim 1, characterized in that: The conductive coil assembly forms an alternating electromagnetic field at various locations inside the non-metallic material structure. The alternating electromagnetic field is electromagnetically inductively coupled with the wireless power receiving units of multiple passive wireless intelligent aggregates inside the non-metallic material structure. The wireless power receiving units receive the electromagnetic wave energy radiated by the conductive coil assembly, and wirelessly power each passive wireless intelligent aggregate inside the non-metallic material structure.

4. The non-metallic material intelligent structure powered by internal electromagnetic waves according to claim 1, characterized in that: The wireless sensor units are all installed inside the non-metallic material structure and are covered by the electromagnetic waves generated by the conductive coil assembly; the wireless sensor units include sensors, data acquisition modules, data storage modules and wireless signal transmission modules, the data acquisition module is electrically connected to the sensor and is used to obtain structural status information collected by the sensor, the data storage module is connected to the data acquisition module and is used to store the structural status information, and the wireless signal transmission module is connected to the data acquisition module and is used to wirelessly transmit the structural status information.

5. The non-metallic material intelligent structure powered by internal electromagnetic waves according to claim 4, characterized in that: The sensor is a sensor array composed of one or more of a sound sensor, a strain sensor, a pressure sensor, a vibration acceleration sensor, an inclination sensor, a temperature and humidity sensor, a pH sensor, and an impedance sensor.

6. The non-metallic intelligent structure powered by internal electromagnetic waves according to claim 4, characterized in that: The wireless signal transmission module is one of a WiFi communication module, a Bluetooth communication module, a LoRa communication module, and a 4G / 5G communication module.

7. The non-metallic intelligent structure powered by internal electromagnetic waves according to claim 1, characterized in that: The wireless sensor unit is wirelessly connected to the monitoring base station via wireless communication, and is used to wirelessly transmit structural status information to the monitoring base station or receive instructions from the monitoring base station.

8. The non-metallic intelligent structure powered by internal electromagnetic waves according to claim 1, characterized in that: Multiple passive wireless intelligent aggregates communicate with each other wirelessly through the wireless signal transmission module of the wireless sensor unit.

9. A self-sensing method for a non-metallic material smart structure powered by internal electromagnetic waves, applied to the non-metallic material smart structure powered by internal electromagnetic waves according to any one of claims 1 to 8, comprising the following steps: The conductive coil assembly is connected to an external high-frequency alternating oscillation power supply to form an alternating electromagnetic wave radiation field inside the non-metallic material structure, and provides power to the wireless power receiving unit inside the passive wireless intelligent aggregate through inductive coupling or resonant coupling. The wireless power receiving unit is electrically connected to the rectifier and voltage stabilization circuit unit to power the wireless sensor unit. After the wireless sensor unit is powered on, the structural state information of the non-metallic material structure is collected through the sensor; Multiple passive wireless intelligent aggregates communicate with each other wirelessly through the wireless signal transmission module of the wireless sensor unit, and jointly monitor the structural status information. At the same time, the identity information and structural status information of the non-metallic material structure are transmitted to the monitoring base station through wireless communication, or instructions from the monitoring base station are received.

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