CN115388946B - Device and method for evaluating electromagnetic signal wireless transmission efficiency of concrete built-in sensor - Google Patents
Device and method for evaluating electromagnetic signal wireless transmission efficiency of concrete built-in sensor Download PDFInfo
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- CN115388946B CN115388946B CN202211034735.7A CN202211034735A CN115388946B CN 115388946 B CN115388946 B CN 115388946B CN 202211034735 A CN202211034735 A CN 202211034735A CN 115388946 B CN115388946 B CN 115388946B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/001—Energy harvesting or scavenging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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Abstract
The invention provides a device and a method for evaluating electromagnetic signal wireless transmission efficiency of a concrete built-in sensor, wherein the device at least comprises a transparent cylinder body, a reinforcing steel bar net sheet, a wireless sensor, a signal receiving and processing module, a signal activating and charging module and a processing terminal, wherein the transparent cylinder body is used for bearing liquid with the same or different conductivity as that of the concrete within a set range, the reinforcing steel bar net sheet is bound together to form a reinforcing steel bar cage which is arranged around a single layer or a double layers of the wireless sensor, the wireless sensor is in communication connection with the signal receiving and processing module, the signal receiving and processing module is in communication connection with a control terminal, and the wireless sensor is in communication connection with the signal activating and charging module.
Description
Technical Field
The invention relates to the technical field of wireless passive sensors, in particular to a device and a method for evaluating electromagnetic signal wireless transmission efficiency of a concrete built-in sensor.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The monitoring and early warning work aiming at tunnel disasters penetrates through the whole stage of the tunnel construction period and the operation and maintenance period, particularly the tunnel is in the initial stage of construction, the accuracy of monitoring data can ensure the construction safety and the long-term stability of the structure, the rationality of a construction method can be confirmed, and a basis is provided for informationized design and construction. The concrete detection contents comprise surrounding rock internal force, surrounding rock deformation, primary support steel arch frame deformation, primary support, secondary lining pressure and the like.
The existing tunnel monitoring technology generally adopts a wired sensor to monitor various physical quantities and transmit data, and has the advantages of high transmission efficiency, stable and reliable data, mature technology and the like, but has the following problems that (1) the internal structure of a tunnel is complex, the lining structure is divided into multiple layers, so that the sensor is embedded into a large number of layers, and (2) the wired sensor needs to transmit cables to receive excitation and data transmission, so that the embedding of each sensor needs to reserve holes to store the cables, a large number of cables are required to be laid for monitoring a plurality of physical quantities, the arrangement and protection of the cables are difficult to be ensured, and (3) the installation, inspection and data reading of the sensor mainly depend on manual operation, so that the problems of lower efficiency and increased cost exist.
The wireless passive sensor solves the problems well, is small in size and convenient to install, effectively reduces the layout of cables through electromagnetic wave wireless transmission, and can be quickly built on site wireless data transmission network, so that the working efficiency is greatly improved, and the construction cost is reduced.
However, the inventor finds that the currently mainstream wireless passive sensors can only be arranged on the surface of a structure for monitoring and cannot be used in the structure, and in addition, in the aspect of data transmission, the accuracy, the stability and the transmission efficiency of the data still have a plurality of problems, and meanwhile, the problems are also the reason that the wireless passive sensors cannot be applied to practical engineering.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a device and a method for evaluating the electromagnetic signal wireless transmission efficiency of a concrete built-in sensor, which can realize wireless receiving and transmitting of the data of the concrete built-in sensor, self-energy supply of the sensor and efficiency evaluation of the data, and realize real wireless passive monitoring.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The invention provides a device for evaluating electromagnetic signal wireless transmission efficiency of a concrete built-in sensor.
An electromagnetic signal wireless transmission efficiency evaluation device of a concrete built-in sensor at least comprises:
the device comprises a transparent cylinder body, a reinforcing mesh, a wireless sensor, a signal receiving and transmitting and processing module, a signal activating and charging module and a processing terminal;
The transparent cylinder body is used for bearing liquid with the same or different conductivity as the concrete within a set range, and the reinforcement meshes are bound together to form a reinforcement cage which is arranged around the wireless sensor in a single layer or double layers;
the wireless sensor is in communication connection with the signal receiving and processing module, the signal receiving and processing module is in communication connection with the control terminal, and the wireless sensor is in communication connection with the signal activating and charging module.
As an alternative implementation, the wireless sensor is disposed within a hermetically sealed transparent case.
As an alternative implementation manner, the wireless sensor is in wireless communication connection with the signal transceiving and processing module, the wireless sensor is in wireless communication connection with the signal activating and charging module, and the signal transceiving and processing module is in communication connection with the control terminal through a transmission cable.
As an alternative implementation mode, the reinforcing mesh is manufactured by adopting the diameter and strength welding for practical engineering, and is regularly distributed around the wireless sensor for simulating the reinforcing mesh in the practical engineering concrete.
As an alternative implementation, the transparent cylinder is a transparent glass cylinder.
As an alternative implementation manner, the signal receiving-transmitting and processing module comprises a wireless signal receiving device and a signal processing terminal, the wireless sensor is in communication connection with the wireless signal receiving device, and the wireless signal receiving device is in communication connection with the signal processing terminal.
As an alternative implementation, the signal activation and charging module comprises a plastic shell, an output coil, an AC-DC converter and a frequency converter;
The output coil is arranged in the plastic shell, the frequency converter is connected with the output coil, the frequency converter is connected with the AC-DC converter, and the frequency converter and the AC-DC converter are used for generating an alternating electromagnetic field, so that the coil in the wireless sensor 9 induces voltage to charge and transmit signals.
As an alternative implementation manner, the computer terminal module is at least configured to analyze and process the received signal, and check whether the transmission signal is accurate, reflects the real state, the distortion rate of the signal and the transmission efficiency.
As an alternative implementation manner, the wireless sensor comprises a sensor module, an energy storage module, a data preprocessing module and a wireless transceiver module;
The sensor module is connected with the data preprocessing module, the data preprocessing module is connected with the wireless transceiver module, and the sensor module, the wireless transceiver module and the data preprocessing module are respectively connected with the energy storage module;
The energy storage module adopts an electromagnetic induction principle, receives electromagnetic energy from the signal activation and charging module and converts the electromagnetic energy into electric energy to be stored, and supplies energy for the sensor module, the data preprocessing module and the wireless transceiver module.
The second aspect of the invention provides a method for evaluating the electromagnetic signal wireless transmission efficiency of a concrete built-in sensor.
The invention relates to a method for evaluating electromagnetic signal wireless transmission efficiency of a concrete built-in sensor, which comprises the following steps:
The wireless sensor is charged and activated by using a signal activation and charging module, so that the wireless sensor enters a working state, and the processing terminal evaluates the received signal;
The method comprises the steps of simulating a reinforcing mesh in a concrete structure by changing the number of reinforcing meshes and the distance between the reinforcing meshes, simulating the thickness of concrete in the structure by changing the volume of transparent liquid, and changing the angle of receiving signals by an antenna by changing the placement position of a built-in wireless sensor;
And sequentially repeating the steps according to the experimental working conditions, and screening and judging the experimental results to obtain the optimal signal transmission condition under the multi-condition coupling in the concrete.
Compared with the prior art, the invention has the beneficial effects that:
1. The device and the method for evaluating the electromagnetic signal wireless transmission efficiency of the built-in sensor of the concrete can realize wireless receiving and sending of the data of the built-in sensor of the concrete, self-energy supply of the sensor and efficiency evaluation of the data, and realize real wireless passive monitoring.
2. According to the device and the method for evaluating the electromagnetic signal wireless transmission efficiency of the built-in sensor of the concrete, the number of reinforcing mesh pieces and the distance between the reinforcing mesh pieces are changed to simulate the reinforcing mesh pieces in the concrete structure, the volume of transparent liquid is changed to simulate the thickness of the concrete in the structure, the placing position of the built-in wireless sensor is changed to change the angle of receiving signals by an antenna, the influence of the conductivity and the thickness of the concrete and the reinforcing steel on the electromagnetic signals is considered, more accurate evaluation of the electromagnetic signal wireless transmission efficiency of the sensor is realized, the interference of the electromagnetic signals caused by the fact that the materials exist in actual engineering is avoided, the situation of the actual engineering is more met, and the device and the method are more beneficial to the application in the actual engineering in the later stage.
Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a schematic structural diagram of an electromagnetic signal wireless transmission efficiency evaluation device of a concrete built-in sensor provided in embodiment 1 of the present invention;
Fig. 2 is a schematic diagram of a main module for evaluating wireless transmission performance of electromagnetic signals according to embodiment 1 of the present invention.
Fig. 3 is a schematic diagram of a signal activation and charging module according to embodiment 1 of the present invention;
Fig. 4 is a schematic diagram of a signal transceiver and processing module provided in embodiment 1 of the present invention;
fig. 5 is a schematic diagram of the internal structure of a wireless sensor according to embodiment 1 of the present invention;
The wireless transmission efficiency evaluation device comprises a main module for evaluating wireless transmission efficiency of electromagnetic signals, a signal receiving and processing module, a signal activating and charging module, a control terminal, a transmission cable, a transparent glass cylinder, a transparent glass screen, a closed transparent box, a wireless sensor, a transparent liquid with similar conductivity to concrete, a plastic shell, a 12, an output coil, a 13, an AC-DC converter, a 14, a frequency converter, a 15, a wireless signal receiving device, a 16, a signal processing end, a 17, a sensor module, an 18, an energy storage module, a 19, a data preprocessing module, a 20 and a wireless receiving and transmitting module.
Detailed Description
The invention will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to an orientation or a positional relationship based on that shown in the drawings, and are merely relational terms, which are used for convenience in describing structural relationships of various components or elements of the present invention, and do not denote any one of the components or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly attached," "connected," "coupled," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection, or both, as well as directly or indirectly via an intermediary. The specific meaning of the terms in the present invention can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present invention.
Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Example 1:
as shown in fig. 1, embodiment 1 of the present invention provides a device for evaluating electromagnetic signal wireless transmission efficiency of a concrete built-in sensor, which includes an electromagnetic signal wireless transmission efficiency evaluation main body module 1, a signal receiving and processing module 2, a signal activating and charging module 3 and a control terminal 4 (for example, may be a computer terminal module), wherein the electromagnetic signal transmission verification main body module 1, the signal activating and charging module 3 and the signal receiving and processing module 2 are connected by wireless, and the other modules are connected by a transmission cable 5.
In the embodiment, the electromagnetic signal wireless transmission efficiency evaluation main body module 1 comprises a transparent glass cylinder 6, a reinforcing mesh 7, a closed transparent box 8, a wireless sensor 9 and a transparent liquid 10 (the conductivity of the transparent liquid 10 is the same as that of concrete or the difference value of the conductivity of the transparent liquid and the concrete is within a set range);
specifically, the transparent glass cylinder 6 is used for placing an experimental device, so that the state of an internal instrument is convenient to observe and adjust, the transparent liquid 10 is arranged in the transparent glass cylinder 6 (i.e. a transparent cylinder), it can be understood that in other embodiments, the transparent cylinder can be replaced by a transparent hard cylinder made of other materials, and a person skilled in the art can select according to specific working conditions, and the details are not repeated here;
In the embodiment, the wireless sensor 9 is arranged in the sealed transparent box 8, the sealed transparent box 8 is arranged in the transparent glass cylinder 6, and the sealed transparent box 8 can block liquid from entering the sensor to damage the sensor, so that the normal operation of the wireless sensor 9 is ensured;
The reinforcement mesh 7 is manufactured by adopting the diameter and strength welding commonly used in actual engineering, is regularly arranged around the wireless sensor 9 and simulates the reinforcement mesh in the concrete of the actual engineering;
In this embodiment, the magnetic signal wireless transmission efficiency evaluation main module 1 mainly simulates the position of the built-in sensor in the actual engineering, the wireless sensor 9 can monitor the micro deformation of the structure and convert the physical signal into an electromagnetic signal, and the electromagnetic signal is transmitted out in an electromagnetic wave mode to be captured by the signal receiving and processing module 2, and is in a dormant state in a non-working state, and the external signal activating and charging module 3 activates and charges to be converted into a working state;
In this embodiment, the transparent liquid 10 simulates the conductivity of concrete in the actual structure by adding NaCl into the transparent organic solvent, and the current method for calculating the equivalent conductivity of reinforced concrete mainly adopts the concept of weighted average, that is, the ratio of the reinforcing steel bar to the concrete is multiplied by the theoretical conductivity of the material itself and summed (σ Reinforcing steel bar ×V Reinforcing steel bar /V Total (S) +σ Concrete ×V Concrete /V Total (S) ), because the embodiment needs to consider the reflection of electromagnetic waves on the surface of the reinforcing steel bar, the reinforcing steel bar needs to be separated separately (σ Concrete ×V Concrete /V Total (S) ), the concrete is replaced by similar materials, the method for calculating the conductivity of the concrete still adopts the weighted calculation method, the conductivity is measured by adopting a conductivity measuring instrument, the transparent organic solvent can conveniently observe the state of the internal instrument, and the internal vacuum state can be well simulated.
In this embodiment, the signal transceiving and processing module 2 is mainly responsible for receiving electromagnetic signals from the wireless sensor 9 for preprocessing and then transmitting the electromagnetic signals to the control terminal 4 through the transmission cable 5, and comprises a wireless signal receiving device 15 and a signal processing terminal 16, the wireless sensor 9 is in communication connection with the wireless signal receiving device 15, and the wireless signal receiving device 15 is in communication connection with the signal processing terminal 16
In this embodiment, the signal activation and charging module 3 includes a plastic housing 11, an output coil 12, an AC-DC converter 13, and a frequency converter 14, the output coil 12 is disposed in the plastic housing 11, the frequency converter 14 is connected to the output coil 12, and the frequency converter 14 is connected to the AC-DC converter 13;
the signal activation and charging module 3 is mainly responsible for activating the sensor 9 embedded in the structure to enable the sensor 9 to enter a working state and charging the wireless sensor 9, and the main principle is to send out electromagnetic signals in a radiation mode by utilizing an electromagnetic induction principle, and realize wireless transmission through the mutual conversion of magnetic field energy and electric energy;
The frequency converter 14 and the AC-DC converter 13 can generate an alternating electromagnetic field, so that a coil in the wireless sensor 9 can induce voltage for charging and signal transmission, and the plastic shell 11 is used for protecting the coil and can be made of a thin transparent acrylic plate.
In this embodiment, the control terminal 4 can analyze and process the signal transmitted through the transmission cable 5, and check whether the transmitted signal is accurate, reflects the real state, and has a distortion rate and transmission efficiency.
The device described in this embodiment mainly considers the influence of concrete conductivity, thickness and steel bars on electromagnetic signals, and electromagnetic waves are energy, and during the propagation process, a part of energy is lost due to the interaction with the medium, another part of energy is lost in the form of reflection and refraction, and finally the rest part of the energy can be utilized. A large number of researches show that in the process of transmitting the electromagnetic signals through the reinforced concrete wall, the change of the conductivity of the concrete and the reinforcing steel bar can greatly attenuate the electromagnetic waves, while the change of the thickness of plain concrete can not attenuate the electromagnetic waves, the electromagnetic signals still reach tens of decibels under the action of coupling together with the reinforcing steel bar net, meanwhile, the electromagnetic waves can be reflected and diffracted between the interface of the reinforcing steel bar and the concrete, if the reinforcing steel bar net has more layers and denser grids, the action process is more complex, the attenuation action is stronger, and the evaluation device of the embodiment mainly considers the factors and realizes more accurate evaluation of the wireless transmission efficiency of the electromagnetic signals of the built-in sensor of the concrete.
Example 2
The embodiment 2 of the invention provides a method for evaluating the electromagnetic signal wireless transmission efficiency of a concrete built-in sensor, which utilizes the device for evaluating the electromagnetic signal wireless transmission efficiency of the concrete built-in sensor described in the embodiment 1 to comprise the following steps:
Firstly, arranging a reinforcing mesh 7 and transparent liquid 10 in an electromagnetic signal wireless transmission efficiency evaluation main body module 1, binding the reinforcing mesh 7 together through steel wires to form a reinforcing cage according to the manufactured experimental working conditions, and arranging the reinforcing cage around a wireless sensor 9 in a single layer or double layers;
The transparent liquid 10 is used for measuring the conductivity by a conductivity meter before being added, and NaCl is added to adjust the conductivity value to be similar to that of common concrete;
the transparent glass cylinder 6 has the size of 60cm multiplied by 50cm, and scales are marked on the transparent glass cylinder 6 and can be used for controlling the volume of the added transparent liquid 10, and meanwhile, the visualization of the experimental process is realized;
After arranging each part in the electromagnetic signal wireless transmission efficiency evaluation main body module 1 according to experimental conditions, adjusting the position and angle of the fixed signal receiving and processing module 2, establishing connection between the processing terminal 4 and the signal receiving and processing module 2 by using the transmission cable 5, and setting related parameters;
Finally, the wireless sensor 9 is charged and activated by the signal activation and charging module 3 to enter a working state, and then the received signal is evaluated, wherein the energy storage module 18 adopts an electromagnetic induction principle, and can receive electromagnetic energy from the signal activation and charging module 3 and convert the electromagnetic energy into electric energy to be stored, so as to supply energy to the sensor module 17, the data preprocessing module 19 and the wireless transceiver module 20;
In the embodiment, the number of the reinforcing mesh pieces 7 and the distance between the reinforcing mesh pieces are changed to simulate the reinforcing mesh in the concrete structure, the volume of the transparent liquid 10 is changed to simulate the thickness of the concrete in the structure, and the angle of receiving signals by the antenna can be changed by changing the placement position of the built-in wireless sensor;
And sequentially repeating the steps according to the experimental working conditions, screening and judging the experimental results, and finding out the optimal transmission condition under the multi-condition coupling in the concrete.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a concrete built-in sensor electromagnetic signal wireless transmission efficiency evaluation device which characterized in that:
At least comprises:
The device comprises a transparent cylinder body, a reinforcing mesh, a wireless sensor, a signal receiving and transmitting and processing module, a signal activating and charging module and a control terminal;
The transparent cylinder body is used for bearing liquid with the same or different conductivity as the concrete within a set range, and the reinforcement meshes are bound together to form a reinforcement cage which is arranged around the wireless sensor in a single layer or double layers;
The wireless sensor is in communication connection with the signal receiving and transmitting and processing module, the signal receiving and transmitting and processing module is in communication connection with the control terminal, and the wireless sensor is in communication connection with the signal activating and charging module;
The wireless sensor is arranged in the airtight transparent box, the reinforcing mesh is manufactured by adopting the diameter and the strength for practical engineering, and the reinforcing mesh is regularly arranged around the wireless sensor and is used for simulating the reinforcing mesh in practical engineering concrete.
2. The device for evaluating electromagnetic signal wireless transmission performance of a concrete built-in sensor according to claim 1, wherein:
The wireless sensor is in wireless communication connection with the signal receiving and processing module, the wireless sensor is in wireless communication connection with the signal activating and charging module, and the signal receiving and processing module is in communication connection with the control terminal through a transmission cable.
3. The device for evaluating electromagnetic signal wireless transmission performance of a concrete built-in sensor according to claim 1, wherein:
The transparent cylinder body is a transparent glass cylinder body.
4. The device for evaluating electromagnetic signal wireless transmission performance of a concrete built-in sensor according to claim 1, wherein:
The signal receiving and transmitting and processing module comprises a wireless signal receiving device and a signal control terminal, the wireless sensor is in communication connection with the wireless signal receiving device, and the wireless signal receiving device is in communication connection with the signal control terminal.
5. The device for evaluating electromagnetic signal wireless transmission performance of a concrete built-in sensor according to claim 1, wherein:
The signal activation and charging module comprises a plastic shell, an output coil, an AC-DC converter and a frequency converter;
The output coil is arranged in the plastic shell, the frequency converter is connected with the output coil, the frequency converter is connected with the AC-DC converter, and the frequency converter and the AC-DC converter are used for generating an alternating electromagnetic field, so that the coil in the wireless sensor induces voltage to charge and transmit signals.
6. The device for evaluating electromagnetic signal wireless transmission performance of a concrete built-in sensor according to claim 1, wherein:
The control terminal is at least configured to analyze and process the received signal, and to check whether the transmission signal is accurate, reflect the real state, the distortion rate of the signal and the transmission efficiency.
7. The device for evaluating electromagnetic signal wireless transmission performance of a concrete built-in sensor according to claim 1, wherein:
the wireless sensor comprises a sensor module, an energy storage module, a data preprocessing module and a wireless transceiver module;
The sensor module is connected with the data preprocessing module, the data preprocessing module is connected with the wireless transceiver module, and the sensor module, the wireless transceiver module and the data preprocessing module are respectively connected with the energy storage module;
The energy storage module adopts an electromagnetic induction principle, receives electromagnetic energy from the signal activation and charging module and converts the electromagnetic energy into electric energy to be stored, and supplies energy for the sensor module, the data preprocessing module and the wireless transceiver module.
8. A wireless transmission efficiency evaluation method for electromagnetic signals of a concrete built-in sensor is characterized by comprising the following steps of:
A device for evaluating electromagnetic signal wireless transmission efficiency by using the built-in sensor of the concrete according to any one of claims 1 to 7, comprising the following steps:
The wireless sensor is charged and activated by using the signal activation and charging module, so that the wireless sensor enters a working state, and the control terminal evaluates the received signal;
The method comprises the steps of simulating a reinforcing mesh in a concrete structure by changing the number of reinforcing meshes and the distance between the reinforcing meshes, simulating the thickness of concrete in the structure by changing the volume of transparent liquid, and changing the angle of receiving signals by an antenna by changing the placement position of a built-in wireless sensor;
And sequentially repeating the steps according to the experimental working conditions, and screening and judging the experimental results to obtain the optimal signal transmission condition under the multi-condition coupling in the concrete.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010150109A1 (en) * | 2009-06-24 | 2010-12-29 | A Gibson | Impact device for materials analysis |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175913A (en) * | 1995-01-25 | 1998-03-11 | Z·P·M·公司 | Method and apparatus for delivering electromagnetic energy into solution |
| JP4329008B2 (en) * | 2003-04-03 | 2009-09-09 | 株式会社アミック | Concrete pole crack evaluation system |
| DE10355297B3 (en) * | 2003-11-21 | 2005-02-17 | Hochschule für Technik und Wirtschaft Dresden (FH) | Defect detection device for concrete component reinforcement using signal analysis of reflection signals detected by oscillation sensor |
| US8513958B2 (en) * | 2011-06-14 | 2013-08-20 | Soilmoisture Equipment Corporation | Stacked sensor for testing a porous medium |
| CN103852488A (en) * | 2012-12-06 | 2014-06-11 | 天津市医学堂科技有限公司 | Wireless sensor node for monitoring reinforcement corrosion in concrete |
| CN103630484B (en) * | 2013-12-04 | 2016-01-13 | 哈尔滨工业大学 | The wireless self-energy accumulation corrosion monitoring node of weak isomery source energy supply |
| CN104628326B (en) * | 2015-02-16 | 2016-08-03 | 福建省盛威建设发展有限公司 | A kind of concrete with electromagenetic wave radiation safeguard function and preparation method thereof |
| CN105236787B (en) * | 2015-08-25 | 2017-10-24 | 中国电建集团贵阳勘测设计研究院有限公司 | Electromagnetic wave geophysical experiment model body |
| CN105547990B (en) * | 2016-02-04 | 2018-06-29 | 爱德森（厦门）电子有限公司 | A kind of armored concrete reinforcing bar in-situ monitoring device and method |
| CN105891453A (en) * | 2016-04-08 | 2016-08-24 | 山东建泽混凝土有限公司 | Device and method for testing apparent mass of bare concrete |
| JP2018088570A (en) * | 2016-11-28 | 2018-06-07 | 株式会社日立製作所 | Wireless system, wireless system in shielded premise, radio |
| JP6861969B2 (en) * | 2017-04-11 | 2021-04-21 | 株式会社オンガエンジニアリング | Elastic wave transmission / reception probe, measuring device and measuring method using this |
| CN107699172B (en) * | 2017-09-22 | 2019-09-20 | 广东能辉新材料科技有限公司 | Photocuring hot-fusible pressure-sensitive adhesive |
| CN111143918B (en) * | 2019-12-06 | 2023-03-28 | 湘潭大学 | Radio wave path prediction method and apparatus |
| CN115752541A (en) * | 2021-04-13 | 2023-03-07 | 内蒙古显鸿科技股份有限公司 | Test system and test method |
| CN113155613B (en) * | 2021-04-22 | 2022-10-14 | 中煤科工集团重庆研究院有限公司 | Transmission device and method for transmitting electromagnetic waves through concrete |
-
2022
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010150109A1 (en) * | 2009-06-24 | 2010-12-29 | A Gibson | Impact device for materials analysis |
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